阅读说明：本技术 一种可透射x线的心肺复苏按压器 (Cardio-pulmonary resuscitation pressing device capable of transmitting X rays ) 是由 孔伟方 章军辉 方志庆 严跃明 方志平 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种可透射X线的心肺复苏按压器,其包括按压部和电控部,所述按压部和电控部为分体式结构,所述按压部由非金属材料制成,所述按压部包括按压头、气缸、气控阀,所述按压头与气缸的顶出端连接,所述气控阀用于控制向气缸的缸体内充入气体或排出气体以驱动按压头进行按压动作；所述气控阀的进气口通过进气管与气源连接,所述电控部通过气控管与气控阀的腔室连通以控制气控阀的阀芯在充气位置和排气位置往复移动,进而控制气缸内的活塞杆顶出或收缩。本发明的可透射X线的心肺复苏按压器适应了患者在需要X线透射的临床环境下的应用需求,填补了目前临床上的技术空白。(The invention discloses an X-ray-transmittable cardio-pulmonary resuscitation (CPR) pressing device, which comprises a pressing part and an electric control part, wherein the pressing part and the electric control part are of a split structure, the pressing part is made of a non-metal material, the pressing part comprises a pressing head, a cylinder and a pneumatic control valve, the pressing head is connected with the ejection end of the cylinder, and the pneumatic control valve is used for controlling gas to be filled into or discharged from the cylinder body of the cylinder so as to drive the pressing head to perform pressing action; the air inlet of the pneumatic control valve is connected with an air source through an air inlet pipe, and the electric control part is communicated with the cavity of the pneumatic control valve through a pneumatic control pipe so as to control the valve core of the pneumatic control valve to move back and forth at an inflation position and an exhaust position, so that the piston rod in the air cylinder is controlled to eject out or contract. The cardio-pulmonary resuscitation pressing device capable of transmitting X rays meets the application requirements of patients in clinical environments requiring X-ray transmission, and fills up the technical blank in the current clinical environment.)

1. the utility model provides a cardiopulmonary resuscitation press of transmission X line which characterized in that: the pressing part and the electric control part are of split structures, and the pressing part is made of non-metal materials; the pressing part comprises a pressing head, a cylinder and a pneumatic control valve, the pressing head is connected with the ejection end of a piston of the cylinder, and the pneumatic control valve is used for controlling gas to be filled into or discharged out of the cylinder body of the cylinder so as to drive the pressing head to perform pressing action; the air inlet of the pneumatic control valve is connected with an air source through an air inlet pipe, and the electric control part is communicated with the cavity of the pneumatic control valve through a pneumatic control pipe so as to control the valve core of the pneumatic control valve to move back and forth at an inflation position and an exhaust position, so that the piston in the cylinder is controlled to eject out or contract.

2. The X-ray transparent cardiopulmonary resuscitation depressor of claim 1, wherein: the pneumatic control valve comprises a valve plate and a valve core, the lower end of the valve plate is in threaded sealing connection with the upper end of the cylinder body of the cylinder, and the piston is arranged in the inner cavity of the cylinder body; the body at the upper end of the valve plate is radially provided with an installation cavity for accommodating the valve core, and after the valve core extends into the installation cavity from one end of the installation cavity in the radial direction, two ends of the installation cavity are closed to limit the valve core in the installation cavity; and the valve plate is provided with an air hole matched with the air inlet and the air outlet of the valve core.

3. The X-ray transparent cardiopulmonary resuscitation depressor of claim 2, wherein: the lower extreme of valve plate is provided with the ring that extends downwards from the valve plate body, the medial surface of ring is provided with the internal thread, the lateral surface of the upper end of cylinder body is provided with the external screw thread, the cylinder body passes through the external screw thread with the internal thread sealing connection of ring forms the piston operation inner chamber of cylinder body.

4. The X-ray transparent cardiopulmonary resuscitation depressor of claim 3, wherein: the outer diameter of the circular ring at the lower end of the valve plate is the same as the outer diameter of the valve plate body and is coaxial, the bottom of the inner cavity of the circular ring is provided with a gas control valve gas supply port used for filling gas into the cylinder body, and a spacing bulge used for spacing the piston in the cylinder body and the bottom of the inner cavity of the circular ring to form an initial gas supply cavity.

5. The radiolucent cardiopulmonary resuscitation depressor of any one of claims 1-4, wherein: at least one end of the valve core of the pneumatic control valve is provided with an air cavity, the air cavity is connected with a pneumatic control port of an electric control valve on the electric control part through the pneumatic control pipe, an air inlet of the electric control valve is connected with an air source, and the electric control valve controls to inflate the air cavity or discharge air in the air cavity so as to push the valve core of the pneumatic control valve to move in a reciprocating mode.

6. The radiolucent cardiopulmonary resuscitation depressor of any one of claims 1-5, wherein: the body material of the pressing part is high-strength plastic.

7. The X-ray transparent cardiopulmonary resuscitation depressor of claim 5 or 6, wherein: a first air cavity and a second air cavity are respectively arranged at two ends of a valve core of the pneumatic control valve, the cross sectional area of the first air cavity is smaller than that of the second air cavity so that the valve core of the pneumatic control valve is pushed to one side of the first air cavity when the two air cavities are filled with air with equal pressure, the body of the pneumatic control valve is provided with an air inlet, a pneumatic control valve air outlet and a pneumatic control valve air inlet, the pneumatic control valve air outlet is communicated with the atmosphere or a waste gas tank, the pneumatic control valve air inlet is communicated with an air passage interface of the cylinder, and when the valve core of the pneumatic control valve reciprocates between an inflation position and an exhaust position, the pneumatic control valve air inlet is communicated with the pneumatic control valve air inlet or the pneumatic control valve air outlet; the first air cavity is communicated with an air source, the second air cavity is connected with an air control port of the electric control valve through the air control pipe, and the valve core of the electric control valve is inflated into the second air cavity or gas in the second air cavity is discharged to push the valve core of the air control valve to move in a reciprocating mode when the valve core of the electric control valve moves in a reciprocating mode.

8. The X-ray transparent cardiopulmonary resuscitation depressor of claim 5 or 6, wherein: the two ends of a valve core of the pneumatic control valve are respectively provided with a first air cavity and a second air cavity, the body of the pneumatic control valve is provided with the air inlet, a pneumatic control valve exhaust port and a pneumatic control valve air supply port, the pneumatic control valve exhaust port is communicated with the atmosphere or a waste gas tank, the pneumatic control valve air supply port is communicated with an air passage interface of the cylinder, and the pneumatic control valve air supply port is communicated with the pneumatic control valve air inlet or the pneumatic control valve exhaust port when the valve core of the pneumatic control valve reciprocates between an inflation position and an exhaust position; the electric control valve is provided with two air control ports, namely a first air control port and a second air control port, the first air control port is communicated with the first air cavity of the air control valve, and the second air control port is communicated with the second air cavity; be provided with first air inlet, first exhaust port, second air inlet, second gas vent on the valve body of automatically controlled valve, first air inlet the second air inlet communicates with the air supply respectively, first exhaust port the second gas vent communicates with atmosphere or waste gas tank respectively, during the case reciprocating motion of automatically controlled valve first air inlet with first gas accuse mouth intercommunication the second gas vent with second gas accuse mouth intercommunication or first exhaust port with first gas accuse mouth intercommunication the second air inlet with second gas accuse mouth intercommunication.

9. The radiolucent cardiopulmonary resuscitation depressor of any one of claims 1-8, wherein: one end of the electric control valve is connected with a controller, and the controller drives a valve core of the electric control valve to move towards one end far away from the controller; and the other end of the electric control valve is provided with a return spring, and the return spring pushes against a valve core of the electric control valve to return to the end where the controller is located.

10. The X-ray transparent cardiopulmonary resuscitation depressor of claim 5 or 6, wherein: the pneumatic control valve is characterized in that the air cavity is formed in one end portion of the valve core of the pneumatic control valve, the pneumatic control valve core return spring made of a non-metal material is arranged at the other end of the valve core of the pneumatic control valve, and the pneumatic control valve core return spring abuts against the valve core of the pneumatic control valve to return to one side of the air cavity.

11. The X-ray transparent cardiopulmonary resuscitation depressor of claim 10, wherein: the electric control valve is provided with an electric control valve air control port, an electric control valve air inlet and an electric control valve air outlet, the electric control valve air control port is communicated with the air cavity, the electric control valve air inlet is communicated with an air source, and the electric control valve air outlet is communicated with atmosphere or a waste gas tank; when the valve core of the electric control valve moves in a reciprocating way, the air control port of the electric control valve is communicated with the air inlet of the electric control valve or the air outlet of the electric control valve; one end of the electric control valve is connected with a controller, the other end of the electric control valve is provided with a return spring, the controller drives the valve core of the electric control valve to move towards one side far away from the controller, and the return spring drives the valve core of the electric control valve to move towards one side of the controller.

12. The X-ray transparent cardiopulmonary resuscitation depressor of claim 7, wherein: the cross-sectional area of the first air cavity is between 40% and 60% of the cross-sectional area of the second air cavity.

Technical Field

The invention relates to the technical field of cardio-pulmonary resuscitation pressing devices, in particular to a cardio-pulmonary resuscitation pressing device capable of transmitting X rays.

Background

The cardiopulmonary resuscitation (hereinafter referred to as the depressor) is one of the most important devices for medical emergency treatment. The pressing devices can be classified into pneumatic and electric types according to their power. However, both pneumatic and electric pressers cannot be directly used in clinical environments requiring X-ray fluoroscopy due to the inclusion of metal components.

X-ray fluoroscopy is often the clinical environment often faced in the process of first aid and rescue, and if the pressing device is removed in the X-ray detection process, precious rescue time is delayed. In addition, when a heart catheterization room is operated, the operation needs to be carried out under the guidance of X-ray images (due to the uncertainty of the operation, rescue equipment such as a pressing device and the like is required to be arranged in quality control in many countries), and the rescue time is delayed once the pressing device is accidentally installed again because the conventional pressing device cannot penetrate X-rays.

Therefore, clinically, there is a need for a cardiopulmonary resuscitation (CPR) depressor capable of transmitting X-rays, and particularly, the CPR depressor has important clinical significance for cardiac catheterization rooms.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the existing cardio-pulmonary resuscitation pressing device cannot transmit X rays, and further provide the cardio-pulmonary resuscitation pressing device capable of transmitting X rays.

In order to achieve the purpose, the invention adopts the following technical scheme:

The cardio-pulmonary resuscitation pressing device capable of transmitting X rays comprises a pressing part and an electric control part, wherein the pressing part and the electric control part are of split structures, and the pressing part is made of non-metal materials; the pressing part comprises a pressing head, a cylinder and a pneumatic control valve, the pressing head is connected with the ejection end of a piston of the cylinder, and the pneumatic control valve is used for controlling gas to be filled into or discharged out of the cylinder body of the cylinder so as to drive the pressing head to perform pressing action; the air inlet of the pneumatic control valve is connected with an air source through an air inlet pipe, and the electric control part is communicated with the cavity of the pneumatic control valve through a pneumatic control pipe so as to control the valve core of the pneumatic control valve to move back and forth at an inflation position and an exhaust position, so that the piston in the cylinder is controlled to eject out or contract.

Preferably, the pneumatic control valve comprises a valve plate and a valve core, the lower end of the valve plate is in threaded sealing connection with the upper end of a cylinder body of the cylinder, and the piston is arranged in an inner cavity of the cylinder body; the body at the upper end of the valve plate is radially provided with an installation cavity for accommodating the valve core, and after the valve core extends into the installation cavity from one end of the installation cavity in the radial direction, two ends of the installation cavity are closed to limit the valve core in the installation cavity; and the valve plate is provided with an air hole matched with the air inlet and the air outlet of the valve core.

preferably, the lower end of the valve plate is provided with a ring extending downwards from the valve plate body, the inner side surface of the ring is provided with an internal thread, the outer side surface of the upper end of the cylinder body is provided with an external thread, and the cylinder body is in threaded sealing connection with the internal thread of the ring through the external thread to form a piston operation inner cavity of the cylinder body.

Preferably, the outer diameter of the ring at the lower end of the valve plate is the same as the outer diameter of the valve plate body and is coaxial, the bottom of the inner cavity of the ring is provided with a pneumatic control valve air supply port for filling air into the cylinder body, and a spacing bulge for spacing the piston in the cylinder body from the bottom of the inner cavity of the ring to form an initial air supply cavity.

Preferably, at least one end of the valve core of the pneumatic control valve is provided with an air cavity, the air cavity is connected with a pneumatic control port of an electric control valve on the electric control part through the pneumatic control pipe, an air inlet of the electric control valve is connected with an air source, and the electric control valve controls to inflate the air cavity or exhaust air in the air cavity so as to push the valve core of the pneumatic control valve to move in a reciprocating manner.

Preferably, the body material of the pressing part is high-strength plastic.

Preferably, a first air cavity and a second air cavity are respectively arranged at two ends of a valve core of the pneumatic control valve, the cross sectional area of the first air cavity is smaller than that of the second air cavity, so that the valve core of the pneumatic control valve is pushed to one side of the first air cavity when the two air cavities are filled with air with equal pressure, the body of the pneumatic control valve is provided with the air inlet, the air outlet of the pneumatic control valve and the air inlet of the pneumatic control valve, the air outlet of the pneumatic control valve is communicated with the atmosphere or an exhaust gas tank, the air inlet of the pneumatic control valve is communicated with the air passage interface of the air cylinder, and the air inlet of the pneumatic control valve is communicated with the air inlet of the pneumatic control valve or the air outlet of the pneumatic control valve when the valve core of the pneumatic; the first air cavity is communicated with an air source, the second air cavity is connected with an air control port of the electric control valve through the air control pipe, and the valve core of the electric control valve is inflated into the second air cavity or gas in the second air cavity is discharged to push the valve core of the air control valve to move in a reciprocating mode when the valve core of the electric control valve moves in a reciprocating mode.

Preferably, a first air cavity and a second air cavity are respectively arranged at two ends of a valve core of the pneumatic control valve, the air inlet, an air outlet of the pneumatic control valve and an air supply port of the pneumatic control valve are arranged on a body of the pneumatic control valve, the air outlet of the pneumatic control valve is communicated with the atmosphere or a waste gas tank, the air supply port of the pneumatic control valve is communicated with an air passage interface of the cylinder, and the air supply port of the pneumatic control valve is communicated with the air inlet of the pneumatic control valve or the air outlet of the pneumatic control valve when the valve core of the pneumatic control valve reciprocates between an inflation position and an; the electric control valve is provided with two air control ports, namely a first air control port and a second air control port, the first air control port is communicated with the first air cavity of the air control valve, and the second air control port is communicated with the second air cavity; be provided with first air inlet, first exhaust port, second air inlet, second gas vent on the valve body of automatically controlled valve, first air inlet the second air inlet communicates with the air supply respectively, first exhaust port the second gas vent communicates with atmosphere or waste gas tank respectively, during the case reciprocating motion of automatically controlled valve first air inlet with first gas accuse mouth intercommunication the second gas vent with second gas accuse mouth intercommunication or first exhaust port with first gas accuse mouth intercommunication the second air inlet with second gas accuse mouth intercommunication.

Preferably, one end of the electric control valve is connected with a controller, and the controller drives the valve core of the electric control valve to move towards one end far away from the controller; and the other end of the electric control valve is provided with a return spring, and the return spring pushes against a valve core of the electric control valve to return to the end where the controller is located.

Preferably, the air cavity is arranged at one end of the valve core of the pneumatic control valve, the pneumatic control valve core return spring made of a non-metal material is arranged at the other end of the valve core of the pneumatic control valve, and the pneumatic control valve core return spring pushes the valve core of the pneumatic control valve to return to one side of the air cavity.

Preferably, the electric control valve is provided with an electric control valve air control port, an electric control valve air inlet and an electric control valve air outlet, the electric control valve air control port is communicated with the air cavity, the electric control valve air inlet is communicated with an air source, and the electric control valve air outlet is communicated with the atmosphere or a waste gas tank; when the valve core of the electric control valve moves in a reciprocating way, the air control port of the electric control valve is communicated with the air inlet of the electric control valve or the air outlet of the electric control valve; one end of the electric control valve is connected with a controller, the other end of the electric control valve is provided with a return spring, the controller drives the valve core of the electric control valve to move towards one side far away from the controller, and the return spring drives the valve core of the electric control valve to move towards one side of the controller.

Preferably, the cross-sectional area of the first air chamber is between 40% and 60% of the cross-sectional area of the second air chamber.

The X-ray-transmitting cardio-pulmonary resuscitation pressing device has at least the following beneficial effects:

the X-ray-transmittable cardio-pulmonary resuscitation pressing device firstly selects an electric control pneumatic pressing scheme, namely, compressed gas is used as pressing power, the pressing process adopts electric control, the pressing part and the electric control part are divided into two independent parts, the structure abandons the conventional common integrated structure, the electric control part and the pressing part are separated, and the two parts are connected through an air passage.

Drawings

In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of the X-ray transparent cardiopulmonary resuscitation depressor of the present invention;

FIG. 2a is a schematic diagram of the pneumatic control valve of the X-ray transparent CPR depressor of the present invention in the exhaust or initial position;

FIG. 2b is a schematic diagram of the pneumatic control valve of the X-ray transparent CPR pressing device of the present invention in the inflation position (pressing operation by the pressing head);

FIG. 3 is a schematic diagram of the cooperation of a second embodiment of the pneumatic control valve and the electronic control portion of the present invention;

FIG. 4 is a schematic diagram of the cooperation of a third embodiment of the pneumatic control valve and the electronic control portion of the present invention;

Fig. 5 is a schematic sectional view of the pressing portion of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5 of the first embodiment of the valve body;

FIG. 7 is a schematic cross-sectional view taken along line A-A of FIG. 5 of a second embodiment of a valve body;

fig. 8 is a schematic structural view in a sectional view from a-a of fig. 5 in the third embodiment of the valve body.

The reference numbers in the figures denote:

100-a pressing part; 200-an electric control part; 1-pressing head; 2-a cylinder; 21-cylinder body; 22-a piston; 3-a pneumatic control valve; 31-a first air cavity; 32-a second air cavity; 33-gas inlet; 34-air control valve exhaust port; 35-air control valve air supply port; 36-an air cavity; 37-pneumatic control valve core return spring; 301-a valve plate; 302-a valve core; 303-installation cavity; 304-a circular ring; 305-a spacing projection; 306-an initial air supply cavity; 4-an electrically controlled valve; 41-a first pneumatic port; 42-a second air control port; 43-first air inlet; 44-a first exhaust port; 45-a second air inlet; 46-a second exhaust port; 47-a return spring; 401-air control port of electric control valve; 402-electrically controlled valve inlet; 403-electric control valve exhaust port; 5-gas source; 6-a controller; 7-an air inlet pipe; 8-air control pipe.

Detailed Description

Referring to fig. 1, an X-ray transmissible cardiopulmonary resuscitation (cpr) pressing device comprises a pressing portion 100 and an electric control portion 200, wherein the pressing portion 100 and the electric control portion 200 are of a split structure, the pressing portion 100 is made of a non-metal material and mainly made of high-strength plastics (such as PBT + glass fiber/nylon + glass fiber/PPS + glass fiber/PPO + glass fiber/PES/PSU/PEEK), a piston portion is made of high-strength plastics with a self-lubricating function, the pressing portion 100 comprises a pressing head 1, a cylinder 2 and a pneumatic control valve 3, the pressing head 1 is connected with a push-out end of a piston 22 of the cylinder 2, and the pneumatic control valve 3 is used for controlling gas to be charged into or discharged from the cylinder body of the cylinder 2 to drive the piston rod and the pressing head 1 to perform pressing action; the air inlet 33 of the pneumatic control valve 3 is connected with an air source 8 through an air inlet pipe 7, and the electric control part 200 is communicated with the chamber of the pneumatic control valve 3 through the pneumatic control pipe 8 to control the valve core of the pneumatic control valve 3 to move back and forth at an inflation position (shown in fig. 2 a) and an exhaust position (shown in fig. 2 b) so as to control the ejection or contraction of the piston rod in the cylinder 2.

The X-ray-transmitting cardiopulmonary resuscitation presser preferably adopts an electric control pneumatic pressing scheme, namely compressed gas is used as pressing power, the pressing process adopts electric control, the pressing part and the electric control part are divided into two independent parts, the conventional common integrated structure is structurally abandoned, the electric control part and the pressing part are separated, and the two parts are connected through an air passage.

The X-ray-transmittable cardio-pulmonary resuscitation pressing device adopts a two-stage air valve joint control structure to replace a large-flow electric control valve, namely, the micro electric control valve is used for controlling the reciprocating movement of a valve core of the large-flow air control valve, so that the air charging into the cylinder or the air discharging from the cylinder is realized to perform cardio-pulmonary resuscitation pressing action, and the rapid air charging/discharging of the cylinder can be controlled as long as the on/off of the micro electric control valve is controlled, thereby achieving the pressing requirement. The cylinder is driven and controlled by a large-flow pneumatic control valve, and the movement of a valve core of the large-flow pneumatic control valve is controlled by a miniature electric control valve. The electric control pneumatic pressing device of the air channel control system has the advantages that the driving power consumption is only 10% of that of the traditional electric control pneumatic cardio-pulmonary resuscitation device, the total power consumption (including a control circuit) is about 20% of that of the original electric control pneumatic cardio-pulmonary resuscitation device, a large amount of energy can be saved, and a large amount of electric energy can be saved in actual use, so that the electric control volume of the electric control pneumatic cardio-pulmonary resuscitation device can be ensured to be in a proper size.

The X-ray-transmissive cardio-pulmonary resuscitation pressing device greatly reduces the power consumption of the electric control pneumatic pressing device, simultaneously solves the problem of insufficient electric quantity which troubles the clinical use of the electric control pneumatic pressing device, and ensures that the accurate pressing is really popularized and popularized clinically, thereby saving more lives of critical patients, and having great economic benefit and social benefit. The specific forms of the electric control valve and the pneumatic control valve adopted in the X-ray-transmitting cardio-pulmonary resuscitation pressing device are not limited, as long as the cardio-pulmonary resuscitation pressing action of the two-stage linkage control cylinder can be realized.

Referring to fig. 5, the pneumatic control valve 3 of the present embodiment includes a valve plate 301 and a valve core 302, the lower end of the valve plate 301 is connected with the upper end of the cylinder 21 of the cylinder 2 in a threaded sealing manner, and the piston 22 is disposed in the inner cavity of the cylinder 21; the body at the upper end of the valve plate 301 is provided with a mounting cavity 303 for accommodating the valve core 302 along the radial direction, after the valve core 302 extends into the mounting cavity 303 along the radial direction from one end of the mounting cavity 303, two ends of the mounting cavity 303 are closed to limit the valve core 303 in the mounting cavity. The valve core 302 and the installation cavity 303 of this embodiment are preferably configured to be cylindrical structures, circumferential limiting structures that are matched with each other are provided on the inner wall of the installation cavity 303 and the outer wall of the valve core to limit circumferential rotation of the valve core, and the specific form of the circumferential limiting structures is not limited as long as the purposes of limiting finding circumferential rotation and facilitating installation can be achieved (for example, a flat key or a fastener is provided by contacting the outer side of the valve core with the installation cavity); the valve plate 301 is provided with air holes matched with the positions of the air inlet and the air outlet of the valve core 302, so that the valve core can be pneumatically controlled.

The lower extreme of valve plate 301 of this embodiment is provided with the ring 304 that extends downwards from the valve plate 301 body, the medial surface of ring 304 is provided with the internal thread, the lateral surface of the upper end of cylinder block 21 is provided with the external screw thread, cylinder block 21 passes through the external screw thread with the internal thread sealing connection of ring 304 forms the piston operation inner chamber of cylinder block 21. This kind of structural style not only is convenient for the assembly joint of valve plate and cylinder body, and threaded connection also can guarantee the stability that cylinder body and valve plate are connected simultaneously to the guarantee presses the head to have sufficient pressure degree at heart abdomen resuscitation pressing process. The sealing connection form of the connection part of the lower end of the valve plate and the cylinder body can be in multiple forms, for example, a circumferential sealing ring is arranged at the external thread part at the upper end of the cylinder body, or the connection tightness is ensured by adopting an interference fit form.

the outer diameter of the ring 304 at the lower end of the valve plate 301 of the present embodiment is the same as and coaxial with the outer diameter of the valve plate 301 body, the inner cavity bottom of the ring 304 is provided with a pneumatic valve air supply port 35 for filling air into the cylinder block 21, and a spacing protrusion 305 for spacing the piston 22 in the cylinder block 21 from the inner cavity bottom of the ring 304 to form an initial air supply cavity 306. When the piston 22 is contracted upwards to the maximum position, the upper end surface of the piston is abutted against the spacing protrusions 305, the initial air supply cavity 306 is connected with an air supply pipeline through the air control valve air supply port 35, and by arranging the initial air supply cavity 306, when the piston is pressed, air can be rapidly injected into the initial air supply cavity 306 through the air control valve air supply port 35, and the pressing action of the piston can be rapidly and stably pushed under the condition that the air supply pressure is constant because the force application area of the initial air supply cavity 306 to the piston is larger than that of the air control valve air supply port 35.

Referring to fig. 5, the spacing protrusions 305 of the present embodiment are preferably provided in a circular ring structure having substantially the same diameter as the piston directly, so as to provide interference support to the upper end of the piston and as much pressing force and pressing stability as possible.

Referring to fig. 1, at least one end of the valve core of the pneumatic control valve 3 of the present invention is provided with an air cavity, the air cavity is connected with a pneumatic control port of an electric control valve 4 on the electric control portion 200 through a pneumatic control pipe 8, an air inlet of the electric control valve 4 is connected with an air source, and the electric control valve 4 controls to inflate the air cavity or exhaust the air in the air cavity to drive the valve core of the pneumatic control valve 3 to reciprocate at an inflation position and an exhaust position. In order to achieve the technical purpose, the pneumatic control valve 3 and the electric control valve 4 may have various structural designs, and in order to describe the technical solution of the present invention in more detail, the following will list the most preferable three structural designs, but this is not a limitation to the technical solution, and the present invention is not limited to the following ones, as long as the technical solution improved based on the inventive spirit of the present invention is within the protection scope of the present invention.

referring to fig. 1, 2a, 2b, 5, and 6, which are first embodiments of a pneumatic control valve and an electric control portion of the present invention, a first air chamber 31 and a second air chamber 32 are respectively disposed at two ends of a valve core of the pneumatic control valve 3, the first air chamber 31 is communicated with an air source 5, the second air chamber 32 is communicated with an electric control valve 4, a cross-sectional area of the first air chamber 31 is smaller than a cross-sectional area of the second air chamber 32, preferably, a cross-sectional area of the second air chamber 32 is twice as large as that of the first air chamber 31, so that the valve core of the pneumatic control valve 3 can be pushed to one side of the first air chamber 31 (i.e. pushed to the left side of fig. 2b, see the black arrow direction in fig. 2 b) when air with equal pressure is filled in the two air chambers, the body of the pneumatic control valve 3 is provided with the air inlet 33, the pneumatic control valve outlet 34, and the pneumatic control valve, so as to directly discharge the exhaust gas into the atmosphere, the air supply port 35 of the air control valve is communicated with the air passage interface of the cylinder and guided into the initial air supply cavity 306, so as to push the piston to press down, or draw out the gas in the cylinder and then make the piston contract; when the valve core of the pneumatic control valve 3 moves back and forth at the inflation position and the exhaust position, the air supply port of the pneumatic control valve is communicated with the air inlet of the pneumatic control valve or the exhaust port of the pneumatic control valve, so that ejection or contraction of the piston is realized.

Referring to fig. 2a, in the exhaust position (initial position), the electronic control unit 200 exhausts the gas in the second air cavity 32, and the first air cavity 31 is connected to the gas source 5, so that under the pressure of the gas, the valve core 302 of the pneumatic control valve moves to connect the exhaust port of the pneumatic control valve with the gas supply port of the pneumatic control valve (the direction of the black arrow in fig. 2a indicates that the valve core is pushed to the right side), at this time, the inner cavity of the cylinder 2 is connected to the atmosphere through the gas supply port 35 of the pneumatic control valve, the valve core 302 of the pneumatic control valve, and the exhaust port 34 of the pneumatic control valve, the inside of the cylinder is in an emptying state, and the piston rod is; referring to fig. 2b, in the inflation position, the electronic control unit 200 controls to inject gas having the same pressure as the gas source into the second gas chamber 32 (so that the second gas chamber is connected to the source), and because the cross-sectional area of the valve core of the pneumatic control valve in the second gas chamber 32 is greater than that of the valve core of the pneumatic control valve in the first gas chamber 31, under the same gas pressure, the thrust of the valve core of the pneumatic control valve by the second gas chamber 32 is greater than that of the valve core of the pneumatic control valve by the first gas chamber 31, so that the valve core 302 of the pneumatic control valve moves to one side of the first gas chamber 31, and the gas inlet 33 is connected to the gas supply port 35 of the pneumatic control valve, and the gas in the gas source enters the cylinder body to push the. The first air cavity 31 is normally communicated with an air source 5, the second air cavity 32 is connected with an air control port of the electric control valve 4 through the air control pipe 8, and when the valve core of the electric control valve moves in a reciprocating manner, air is charged into the second air cavity 32 or air in the second air cavity 32 is discharged to push the valve core of the air control valve to move in a reciprocating manner.

Referring to fig. 3, 5, and 7, in order to match the pneumatic control valve 3 and the electronic control valve 4 according to the second embodiment, a first air cavity 31 and a second air cavity 32 are respectively disposed at two ends of a valve core of the pneumatic control valve 3, a cross-sectional area of the first air cavity 31 does not need to be correlated with a cross-sectional area of the second air cavity 32, the body of the pneumatic control valve 3 is provided with the air inlet 33, a pneumatic control valve exhaust port 34, and a pneumatic control valve air inlet 35, the pneumatic control valve exhaust port 34 is communicated with the atmosphere or communicated with an air extractor to extract air in the cylinder, the pneumatic control valve air inlet 35 is communicated with an air passage interface of the cylinder, and the pneumatic control valve air inlet 35 is communicated with the pneumatic control valve air inlet 33 or the pneumatic control valve exhaust port 34 when the valve core of the pneumatic control valve 3 reciprocates between an inflation position and an exhaust; the electromagnetic valve 4 is provided with two air control ports, namely a first air control port 41 and a second air control port 42, wherein the first air control port 41 is communicated with the first air cavity 31 of the air control valve 3, and the second air control port 42 is communicated with the second air cavity 32; be provided with first air inlet 43, first exhaust port 44, second air inlet 45, second gas vent 46 on the valve body of automatically controlled valve 4, first air inlet 43 second air inlet 45 communicates with air supply 5 respectively, first exhaust port 44 the equal atmosphere intercommunication of second gas vent 46 respectively, during the case reciprocating motion of automatically controlled valve 4 first air inlet 43 with first gas accuse mouth 41 intercommunication, second gas vent 46 with second gas accuse mouth 42 intercommunication or first exhaust port 44 with first gas accuse mouth 41 intercommunication, second air inlet 45 with second gas accuse mouth 42 intercommunication. In a normal state, the first air control port 41 enables the first air inlet 43 of the electric control valve 4 to be normally communicated with the first air cavity 31 of the air control valve 3, and the second air cavity 32 is normally communicated with the atmosphere through the air control pipe 8, the second air control port 42 and the second air outlet 46, so that air with the same pressure as an air source is reserved in the first air cavity 31 in a normal state, a valve core of the air control valve 3 is pushed to one side of the second air cavity, an inner cavity of the piston cylinder is enabled to be normally communicated with an air outlet of the air control valve through the air supply port 35 of the air control valve, the piston cylinder is enabled to be normally emptied in the normal state, and the piston is enabled to shrink. When the pressing action is carried out, the valve core of the electric control valve is pushed to the first exhaust port 44 to be communicated with the first air cavity, the second air inlet 43 is communicated with the second air cavity to push the valve core of the pneumatic control valve to be positioned at one side of the first air cavity, and the air source charges air into the cylinder body through the valve core of the pneumatic control valve 3 and the air supply port 35 of the pneumatic control valve, so that the air cylinder is pushed downwards to eject out, and the pressing head is driven to carry out the pressing action.

Referring to fig. 4, 5, and 8, a third embodiment of the pneumatic control valve and the electric control valve is shown, the air chamber 36 is disposed at one end of the valve core of the pneumatic control valve 3, the pneumatic control valve core return spring 37 made of a non-metal material is disposed at the other end of the valve core of the pneumatic control valve 3, and the pneumatic control valve core return spring 37 pushes the valve core of the pneumatic control valve to return to one side of the air chamber 36, so that an external air passage can be reduced. An electric control valve air control port 401, an electric control valve air inlet 402 and an electric control valve air outlet 403 are arranged on the electric control valve 4, the electric control valve air control port 401 is communicated with the air cavity 36, the electric control valve air inlet 402 is communicated with the air source 5, and the electric control valve air outlet 403 is communicated with the atmosphere; when the valve core of the electric control valve 4 moves in a reciprocating manner, the electric control valve air control port 401 is communicated with the electric control valve air inlet 402 or the electric control valve air outlet 403; one end of the electric control valve 4 is connected with the controller 6, the other end of the electric control valve 4 is provided with a return spring 47, the controller 6 drives the valve core of the electric control valve 4 to move towards one side far away from the controller 6, and the return spring 47 drives the valve core of the electric control valve 4 to move towards one side of the controller 6.

When the controller 6 drives the valve core of the electric control valve to move towards the left side in a braking mode, the reset spring 47 compresses and stores energy, gas enters the gas cavity 36 through the air inlet 402 and the air supply port 401 of the electric control valve, the gas cavity 36 is filled with gas and pushes the valve core of the pneumatic control valve 3 to move towards the left side, at the moment, the gas in the gas source 5 enters the cylinder through the air inlet 33 and the air supply port 35 of the pneumatic control valve and pushes the cylinder to move downwards so as to drive the pressing head to press downwards to complete pressing action; when the controller releases the valve core of the miniature electric control valve, the reset spring 47 drives the valve core of the miniature electric control valve to move towards the right side, the gas in the air cavity 36 is discharged into the air through the gas supply port of the electric control valve and the gas exhaust port of the electric control valve to provide a stroke space for the valve core of the pneumatic control valve to move towards the right side, the reset spring of the pneumatic control valve core releases energy and pushes the valve core of the pneumatic control valve to move towards the right side, the gas in the air cylinder discharges the gas through the gas supply port of the pneumatic control valve and the gas exhaust port of the pneumatic control valve

the electric control valve of the embodiment only needs to control one air chamber on the pneumatic control valve, the structure of the selected micro electric control valve (or the small electric control valve) is simpler, and the valve body only needs a single-channel double-way (or equivalent structure). When the electromagnetic coil is not electrified, the reset spring pushes the valve core in the valve body to move rightwards, so that the air chamber of the large-flow pneumatic control valve is emptied, and the air cylinder is also emptied. When the electromagnetic coil is electrified, the valve core in the valve body is pushed to move leftwards by overcoming the elastic force of the spring, so that the air chamber of the large-flow pneumatic control valve is inflated, and the air cylinder is also inflated. Therefore, as long as the on/off of the micro electric control valve is controlled, the quick air charging/discharging of the air cylinder can be controlled, and the pressing requirement is met.

Referring to fig. 4, in the present embodiment, the right end of the electronic control valve 4 is connected to a controller 6, and the controller 6 drives the valve element of the electronic control valve 4 to move to an end (the left end in fig. 2) away from the controller 6; and a return spring 47 is arranged at the other end (left end in fig. 2) of the electric control valve 4, and the return spring 47 pushes against the valve core of the electric control valve to return to the end (right end in fig. 2) where the controller 6 is located. That is, after receiving the execution signal, the controller drives the valve core of the electric control valve to move towards the left end of fig. 2, at the moment, the return spring 47 is compressed to store energy, and the air cylinder drives the pressing head to move downwards to complete the pressing action; after the controller releases the brake on the valve core of the electric control valve, the valve core of the electric control valve is bounced to the right side under the action of the return spring 47, at the moment, gas in the cylinder is released, and the cylinder drives the pressing head to rebound upwards. Therefore, as long as the on/off of the electric control valve is controlled, the quick air charging/discharging of the air cylinder can be controlled, and the pressing requirement is met.

The electric control valve 4 of the invention preferably adopts a miniature electric control valve, one end of the electric control valve 4 is connected with a controller 6, and the controller 6 drives a valve core of the electric control valve 4 to move towards one end far away from the controller 6; and a return spring 47 is arranged at the other end of the electric control valve 4, and the return spring 47 pushes against the valve core of the electric control valve 4 to return to the end where the controller 6 is located. The return spring 47 in the electric control valve 4 can be made of traditional metal materials, and because the electric control valve 4 and the controller 6 are separated from the pressing part, the parts in the electric control part 200 can be made of materials in the market.

The cardio-pulmonary resuscitation pressing device capable of transmitting X rays meets the application requirements of patients in clinical environments requiring X-ray transmission, and fills up the technical blank in the current clinical environment.

The above embodiments are merely to explain the technical solutions of the present invention in detail, and the present invention is not limited to the above embodiments, and it should be understood by those skilled in the art that all modifications and substitutions based on the above principles and spirit of the present invention should be within the protection scope of the present invention.