阅读说明：本技术 一种多开关胃管装置 (Multi-switch stomach tube device ) 是由 黄莹 王春梅 张文婷 高瑞乾 段宏杰 于 2021-01-22 设计创作，主要内容包括：本发明涉及医护技术领域,公开了一种多开关胃管装置,包括内管、外管和控制管路；内管包括内管管道和位于内管管道一端的连接头；外管包括外管管道和位于外管管道一端的负压连接部,负压连接部上设置有开关阀门,外管管道套设在内管管道外侧并且内管管道的末端位于外管管道外,外管管道开设有通孔；控制管路包括与负压装置连接的第一端部、与负压连接部连接的第二端部、单向阀、机械开关和定时开关,定时开关以预设的时间间隔间断地开启从而实现负压吸引。本发明方案具有较高安全性并减少了医护人员工作量,同时能够提供及时有效的负压吸引。(The invention relates to the technical field of medical care and discloses a multi-switch stomach tube device, which comprises an inner tube, an outer tube and a control pipeline; the inner pipe comprises an inner pipe pipeline and a connector positioned at one end of the inner pipe pipeline; the outer pipe comprises an outer pipe pipeline and a negative pressure connecting part positioned at one end of the outer pipe pipeline, a switch valve is arranged on the negative pressure connecting part, the outer pipe pipeline is sleeved outside the inner pipe pipeline, the tail end of the inner pipe pipeline is positioned outside the outer pipe pipeline, and the outer pipe pipeline is provided with a through hole; the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch, and the timing switch is intermittently opened at a preset time interval to realize negative pressure suction. The scheme of the invention has higher safety, reduces the workload of medical staff and can provide timely and effective negative pressure suction.)

1. A multi-switch stomach tube device is characterized by comprising an inner tube, an outer tube and a control pipeline;

the inner pipe comprises an inner pipe pipeline and a connector positioned at one end of the inner pipe pipeline;

the outer pipe comprises an outer pipe pipeline and a negative pressure connecting part positioned at one end of the outer pipe pipeline; a switch valve is arranged on the negative pressure connecting part;

the outer pipe pipeline is sleeved outside the inner pipe pipeline, and the tail end of the inner pipe pipeline is positioned outside the outer pipe pipeline; the outer pipe pipeline is provided with a through hole;

the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch;

the timing switch is intermittently turned on at preset time intervals to realize negative pressure suction.

2. The multi-switch gastric tube device of claim 1, wherein said first end and/or said second end is a Green joint.

3. The multi-switch gastric tube device of claim 1, wherein said one-way valve, said mechanical switch and said timed switch are disposed in sequence in the direction from said first end to said second end.

4. The multi-switch gastric tube device of claim 1, further comprising an alarm assembly electrically connected to said timing switch.

5. The multi-switch gastric tube device of any one of claims 1 to 4, wherein the device further comprises a guide assembly; the guide assembly comprises a power supply main body and a guide wire attached with an optical fiber; a power supply and a light source electrically connected with the power supply are arranged in the power supply main body, and the light source is used for supplying light to the optical fiber; the guide wire attached with the optical fiber is inserted into the inner pipe pipeline through the connector.

6. A multi-switch stomach tube device is characterized by comprising an inner tube, an outer tube and a control pipeline;

the inner pipe comprises an inner pipe pipeline and a negative pressure connecting part positioned at one end of the inner pipe pipeline; a switch valve is arranged on the negative pressure connecting part;

the outer pipe comprises an outer pipe pipeline and a connector positioned at one end of the outer pipe pipeline;

the outer pipe pipeline is sleeved outside the inner pipe pipeline, and the tail end of the inner pipe pipeline is positioned in the outer pipe pipeline;

the inner pipe pipeline is provided with a through hole penetrating through the outer pipe pipeline in the area close to the tail end, and the inner pipe pipeline and the outer pipe pipeline are tightly attached in the area where the through hole is located;

the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch;

the timing switch is intermittently turned on at preset time intervals to realize negative pressure suction.

7. The multi-switch gastric tube device of claim 6, wherein said first end and/or said second end is a Green's joint.

8. The multi-switch gastric tube device of claim 6, wherein said one-way valve, said mechanical switch and said timed switch are disposed in sequence in the direction from said first end to said second end.

9. The multi-switch gastric tube device of claim 6, further comprising an alarm assembly electrically connected to said timing switch.

10. The multi-switch gastric tube device of any one of claims 6 to 9, further comprising a guide assembly; the guide assembly comprises a power supply main body and a guide wire attached with an optical fiber; a power supply and a light source electrically connected with the power supply are arranged in the power supply main body, and the light source is used for supplying light to the optical fiber; the guide wire attached with the optical fiber is inserted into the outer pipe pipeline through the connector.

Technical Field

The invention relates to the technical field of medical care, in particular to a multi-switch stomach tube device.

Background

In medical care activities, it is often necessary to perform timed and intermittent negative pressure suction operations on patients, such as: the suction of oral secretion and sputum is performed periodically, and the suction of gastric juice is performed periodically. In some cases, the patient has more secretions, requiring a higher frequency of attraction, even up to 10 to 20 per hour, which is undoubtedly a huge workload for the medical care personnel. However, in order to reduce the damage to the mucous membrane caused by the negative pressure suction, a continuous suction method cannot be adopted in practice. There is a great need for an effective solution to the above-mentioned problems.

Disclosure of Invention

In order to overcome the technical problems, the invention provides a multi-switch stomach tube device, which reduces the workload of medical staff, ensures timely and effective negative pressure suction and has higher safety.

To achieve the above objects, in one aspect, the present invention provides a multi-switch gastric tube device comprising an inner tube, an outer tube, and a control conduit;

the inner pipe comprises an inner pipe pipeline and a connector positioned at one end of the inner pipe pipeline;

the outer pipe comprises an outer pipe pipeline and a negative pressure connecting part positioned at one end of the outer pipe pipeline; a switch valve is arranged on the negative pressure connecting part;

the outer pipe pipeline is sleeved outside the inner pipe pipeline, and the tail end of the inner pipe pipeline is positioned outside the outer pipe pipeline; the outer pipe pipeline is provided with a through hole;

the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch;

the timing switch is intermittently turned on at preset time intervals to realize negative pressure suction.

In one possible implementation, the first end and/or the second end is a green joint.

In another possible implementation, the check valve, the mechanical switch and the time switch are arranged in sequence in a direction from the first end to the second end.

In another possible implementation manner, the device further comprises an alarm component electrically connected with the timing switch.

In another possible implementation, the apparatus further comprises a guide assembly; the guide assembly comprises a power supply main body and a guide wire attached with an optical fiber; a power supply and a light source electrically connected with the power supply are arranged in the power supply main body, and the light source is used for supplying light to the optical fiber; the guide wire attached with the optical fiber is inserted into the inner pipe pipeline through the connector.

In another aspect, the present invention provides another multi-switch gastric tube device comprising an inner tube, an outer tube, and a control conduit;

the inner pipe comprises an inner pipe pipeline and a negative pressure connecting part positioned at one end of the inner pipe pipeline; a switch valve is arranged on the negative pressure connecting part;

the outer pipe comprises an outer pipe pipeline and a connector positioned at one end of the outer pipe pipeline;

the outer pipe pipeline is sleeved outside the inner pipe pipeline, and the tail end of the inner pipe pipeline is positioned in the outer pipe pipeline;

the inner pipe pipeline is provided with a through hole penetrating through the outer pipe pipeline in the area close to the tail end, and the inner pipe pipeline and the outer pipe pipeline are tightly attached in the area where the through hole is located;

the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch;

the timing switch is intermittently turned on at preset time intervals to realize negative pressure suction.

In one possible implementation, the first end and/or the second end is a green joint.

In another possible implementation, the check valve, the mechanical switch and the time switch are arranged in sequence in a direction from the first end to the second end.

In another possible implementation manner, the device further comprises an alarm component electrically connected with the timing switch.

In another possible implementation, the apparatus further comprises a guide assembly; the guide assembly comprises a power supply main body and a guide wire attached with an optical fiber; a power supply and a light source electrically connected with the power supply are arranged in the power supply main body, and the light source is used for supplying light to the optical fiber; the guide wire attached with the optical fiber is inserted into the outer pipe pipeline through the connector.

The invention relates to a multi-switch stomach tube device, which comprises an inner tube, an outer tube and a control pipeline; the inner pipe comprises an inner pipe pipeline and a connector positioned at one end of the inner pipe pipeline; the outer pipe comprises an outer pipe pipeline and a negative pressure connecting part positioned at one end of the outer pipe pipeline, a switch valve is arranged on the negative pressure connecting part, the outer pipe pipeline is sleeved outside the inner pipe pipeline, the tail end of the inner pipe pipeline is positioned outside the outer pipe pipeline, and the outer pipe pipeline is provided with a through hole; the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch, and the timing switch is intermittently opened at a preset time interval to realize negative pressure suction. According to the other multi-switch stomach tube device, the outer tube pipeline is sleeved outside the inner tube pipeline, the tail end of the inner tube pipeline is located in the outer tube pipeline, the region of the inner tube pipeline close to the tail end is provided with the through hole penetrating through the outer tube pipeline, and the inner tube pipeline and the outer tube pipeline are tightly attached to each other in the region where the through hole is located. The multi-switch stomach tube device provided by the technical scheme of the embodiment of the invention simultaneously realizes the feeding and sputum suction functions, so that the medical care operation is more convenient, the efficiency is obviously improved, the pain of a patient is relieved, and the device has a wide application range; according to the multi-switch stomach tube device provided by the technical scheme of the embodiment of the invention, the timing switch is turned on at certain time intervals to perform negative pressure suction, so that the workload of nurses is greatly reduced while timely and effective negative pressure suction is ensured, and the operation of closing a pipeline is executed through the mechanical switch in case of emergency or accident, so that the safety is further ensured.

Drawings

Fig. 1 is a schematic structural view of a multi-switch gastric tube device according to an embodiment of the present invention;

FIG. 2 is a side elevational view of the multi-switch gastric tube device illustrated in FIG. 1;

FIG. 3 is another side elevational view of the multiple-switch gastric tube device illustrated in FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5a is a schematic structural diagram of a control circuit according to an embodiment of the present invention;

FIG. 5b is a side view of the control circuit shown in FIG. 5 a;

FIG. 5c is another side view of the control circuit of FIG. 5 a;

FIG. 6a is a schematic structural diagram of a guide assembly according to an embodiment of the present invention;

FIG. 6b is a schematic structural diagram of a guiding wire and a power supply main body according to an embodiment of the present invention;

figure 6c is a schematic view of a gastric tube device inserted into a guide wire;

FIG. 7 is a schematic structural view of another multi-switch gastric tube device provided by an embodiment of the present invention;

FIG. 8 is a side elevational view of the multi-switch gastric tube device illustrated in FIG. 7;

FIG. 9 is another side elevational view of the multiple switch gastric tube device illustrated in FIG. 7;

fig. 10 is a sectional view taken along line a-a of fig. 9.

Detailed Description

Embodiments of the present invention are described below with reference to the drawings. Elements and features depicted in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and description omit representation and description of components or processes that are not relevant to the present invention and that are known to those of ordinary skill in the art for the sake of clarity.

The embodiment of the invention provides a multi-switch stomach tube device, which comprises: inner tube, outer tube and control line.

As shown in fig. 5a to 5c, the specific structure of the control line is as follows.

The control circuit includes a first end 51, a second end 52, a check valve 53, a mechanical switch 54, and a timed switch 55.

The first end 51 is connected to a negative pressure device. The second end 52 is connected to the negative pressure connection of the outer tube. The timing switch 55 is intermittently turned on at preset time intervals to achieve negative pressure suction.

Fig. 1 to 4 show specific structures of the inner pipe and the outer pipe. The inner pipe comprises an inner pipe conduit 11 and a coupling head 12 at one end of the inner pipe conduit 11. The outer tube comprises an outer tube conduit 13 and a negative pressure connection 14 at one end of the outer tube conduit. Wherein, the negative pressure connection part 14 can be provided with a switch valve 141.

As shown in fig. 1 to 4, the outer pipe 13 is sleeved outside the inner pipe 11 and the end of the inner pipe 11 is located outside the outer pipe 13. Wherein, the outer pipe 13 is provided with a through hole 131.

The negative pressure connection 14 of the outer tube shown in fig. 1 to 4 is connected to the second end 52 in fig. 5. At preset time intervals, the timing switch 55 is automatically turned on to realize negative pressure suction, so that sputum, other secretions, foreign matters and the like are sucked into the outer pipe 13 from the through hole 131, then enter the control pipeline through the negative pressure connecting part 14, and are sucked out through the one-way valve 53. The timing switch 55 is turned on for a while and then automatically turned off, and the negative pressure suction is stopped. If the timing switch 55 is not normally closed due to an accident or emergency, the pipeline can be closed by operating the mechanical switch 54.

As shown in fig. 5a to 5c, the check valve 53, the mechanical switch 54 and the timing switch 55 may be disposed in sequence in the direction from the first end 51 to the second end 52, but the disposition is not limited to this. The one-way valve 53 ensures that the negative pressure suction is performed in one direction, and the safety is improved. The mechanical switch 54 and the timing switch 55 have the advantage of double safety.

The multi-switch stomach tube device provided by the embodiment of the invention comprises an inner tube, an outer tube and a control pipeline; the inner pipe comprises an inner pipe pipeline and a connector positioned at one end of the inner pipe pipeline, the outer pipe comprises an outer pipe pipeline and a negative pressure connecting part positioned at one end of the outer pipe pipeline, and a switch valve is arranged on the negative pressure connecting part; the outer pipe pipeline is sleeved outside the inner pipe pipeline, and the tail end of the inner pipe pipeline is positioned outside the outer pipe pipeline; the outer pipe pipeline is also provided with a through hole; the control pipeline comprises a first end part connected with the negative pressure device, a second end part connected with the negative pressure connecting part, a one-way valve, a mechanical switch and a timing switch; the timing switch can be intermittently turned on and off at preset time intervals to achieve negative pressure suction. The embodiment of the invention realizes two functions of feeding and sputum suction, so that the medical care operation is more convenient, the efficiency is obviously improved, and the pain of a patient is relieved; the timing switch can be opened according to certain time interval to carry out the negative pressure and attract, greatly reduces nurse's work load when guaranteeing timely effectual negative pressure and attracts to close the pipeline operation through mechanical switch execution when urgent or unexpected the condition, further guarantee the security, thereby have more extensive range of application.

In some embodiments, the first end and the second end may be a green joint. The control pipeline is properly connected with external negative pressure equipment and a negative pressure connecting part through the Green joint.

In other specific embodiments, the multi-switch gastric tube device of embodiments of the present invention further comprises an alarm assembly electrically connected to the timer switch.

The alarm component can be an alarm lamp, an alarm bell or a module formed by combining the alarm lamp and the alarm bell. When the timing switch is not started according to a preset time interval or is not normally closed after being started, an alarm is given out through the alarm component.

The timing switch may specifically include a timing element, a control element, and an electrically controlled switch element. The electric control switch element and the timing element are respectively electrically connected with the control element. When the timing element has timed a predetermined time interval, an electrical signal is sent to the control element. The control element receives the electric signal and then controls the electric control switch element to be opened, so as to realize negative pressure suction. At this time, the timing element counts the time of the negative pressure suction, and when the negative pressure suction is continued for a certain time, for example, 15 seconds, the timing element sends another electric signal to the control element. And after receiving the other electric signal, the control element controls the electric control switch element to be closed, and the negative pressure suction is finished. The above process is repeated to realize intermittent negative pressure suction.

In addition, the timer switch may be provided with an operation button for setting a time interval or other functions. The time switch may also be provided with a display element for displaying time information or other information.

In other specific embodiments, as shown in fig. 6a, the multi-switch gastric tube device of embodiments of the present invention further comprises a guiding assembly comprising a power-supplying body 61 and a fiber-attached guiding wire 62. The power supply body 61 is connected to the guide wire 62, and the power supply body 61 is provided therein with a power supply and a light source electrically connected to the power supply for supplying light to the optical fiber.

As shown in fig. 6c, the guide wire 62 with the optical fiber attached thereto is inserted into the inner tubular passage 11 through the coupling head 12.

The bottom end of the guide wire 62 reaches the distribution region of the through-holes 131.

In some specific embodiments, the power supply body 61 is provided with a power supply switch 611, as shown in fig. 6 a.

The light source is electrically connected to a power source through a power switch 611. When the power switch 611 is turned on, the power is connected to the light source, and the light source is turned on. When the power switch 611 is turned off, the connection between the power source and the light source is interrupted, and the light source is turned off.

In particular, the light source may be an LED light source.

In some embodiments, as shown in fig. 6a, a holding operation portion 612 is disposed outside the power supply main body 61. Holding the operating portion 612 facilitates the operator to hold the gastric tube device and improves the accuracy of the operation. The holding portion 612 may have various forms, such as a plurality of circular or elliptical concave structures, or a textured structure.

In some embodiments, as shown in FIG. 6b, one end of the guide wire 62 is provided with a guide wire connector 621 that connects to an optical fiber. A light supply connector 613 is provided at one end of the power supply main body 61. The guiding wire connector 621 is connected to the light supply connector 613, and light emitted from the light source is transmitted to the optical fiber through the light supply connector 613 and the guiding wire connector 621, so that the optical fiber emits light. The guide wire 62 with the optical fiber attached thereto is inserted into the inner tubular passage 11 through the connector 12, and the bottom end of the guide wire 62 reaches the distribution region of the through-holes 131. At this time, the operator inserts the gastric tube device, and during the operation, the operator determines the position of the through hole 131 for sputum aspiration by observing the light while descending the tube, and after the insertion is successful, the operator withdraws the guide wire 62 to which the optical fiber is attached.

In addition, a cover may be provided on the connector 12 to cover the connector 12 in a non-use state to prevent dust or various foreign matters from entering.

According to the multi-switch stomach tube device provided by the technical scheme of the embodiment of the invention, feeding equipment inputs feeding liquid into an inner tube pipeline through a connector, negative pressure equipment is connected to an outer tube pipeline through a negative pressure connecting part and performs negative pressure suction regularly through a control pipeline, and sputum can be sucked out safely because the inner diameter of the outer tube pipeline is larger than the outer diameter of the inner tube pipeline and the inner tube pipeline is not provided with a through hole, so that the feeding and sputum suction functions are realized simultaneously, the medical care operation is more convenient, the efficiency is improved, the pain of a patient is relieved, and the multi-switch stomach tube device has better applicability. Meanwhile, the optical fiber attached to the guide wire emits light, when an operator places the gastric tube device into a patient body, the operator can observe the light emitted in the body while operating the gastric tube device, and the position of the through hole for sucking phlegm can be rapidly and accurately determined, so that the efficiency is further improved, and the discomfort of the patient is relieved. In addition, the timing switch can be opened at a certain time interval to perform negative pressure suction, the workload of a nurse is greatly reduced while timely and effective negative pressure suction is guaranteed, the pipeline is closed through mechanical switches in emergency or accident situations, the safety is further guaranteed, and the overall safety and reliability are further improved by the aid of the alarm assembly and the timing switch.

Embodiments of the present invention further provide another multi-switch gastric tube device, comprising: inner tube, outer tube and control line.

The control circuit is shown in fig. 5a to 5c, and the detailed description refers to the foregoing. The inner tube and the outer tube are shown in fig. 7 to 10, and the specific structure is as follows:

the inner pipe includes an inner pipe conduit 71 and a negative pressure connection 72 at one end of the inner pipe conduit 71. The negative pressure connection 72 may be provided with a switching valve 721. The outer tube comprises an outer tube conduit 73 and a coupling head 74 at one end of the outer tube conduit 73. The outer tube conduit 73 is fitted over the inner tube conduit 71 and the end of the inner tube conduit 71 is located within the outer tube conduit 73 as shown in figure 10.

The negative pressure connector 72 penetrates through the wall of the outer pipe and is connected with the inner pipe 71 into a whole. The inner pipe conduit 71 is provided with a through hole 731 penetrating the outer pipe conduit 73 at a region near the distal end thereof, as shown in fig. 10. In the area of the through-hole 731, the outer wall of the inner pipe conduit 71 is in close contact with the inner wall of the outer pipe conduit 73.

The negative pressure connection 72 is connected to the second end 52 of the control line shown in fig. 5. At preset time intervals, the timing switch 55 is automatically turned on to realize negative pressure suction, so that sputum, other secretions, foreign matters and the like are sucked into the inner pipeline 71 from the through hole 731, then enter the control pipeline through the negative pressure connecting part 72 and are sucked out through the one-way valve 53. The timing switch 55 is turned on for a while and then automatically turned off, and the negative pressure suction is stopped. If the timing switch 55 is not normally closed due to an accident or emergency, the pipeline can be closed by operating the mechanical switch 54.

The one-way valve 53 ensures that the negative pressure suction is performed in one direction, and the safety is improved. The mechanical switch 54 and the timing switch 55 have the advantage of double safety.

The multi-switch stomach tube device provided by the embodiment of the invention comprises an inner tube, an outer tube and a control pipeline; the inner tube includes the inner tube pipeline and is located the negative pressure connecting portion of inner tube pipeline one end, is provided with switch valve on the negative pressure connecting portion, and the outer tube includes outer tube pipeline and the connector that is located outer tube pipeline one end, and outer tube pipeline cover is established in the inner tube pipeline outside and the end of inner tube pipeline is located the outer tube pipeline, and the through-hole that runs through the outer tube pipeline is offered in the region that is close to its end to the inner tube pipeline, and in the region at through-hole place, the outer wall of inner tube pipeline closely laminates with the inner wall of outer tube pipeline. The embodiment of the invention realizes two functions of feeding and sputum suction, so that the medical care operation is more convenient, the efficiency is obviously improved, and the pain of a patient is relieved; the time switch of control pipeline can open according to certain time interval and attract in order to carry out the negative pressure, greatly reduces nurse's work load when guaranteeing timely effectual negative pressure attraction to close the pipeline operation through mechanical switch execution when urgent or unexpected the condition, further guarantee the security, have more extensive range of application.

In some embodiments, the first end and the second end of the control line in the embodiments of the present invention may be a green joint. The control pipeline is properly connected with external negative pressure equipment and a negative pressure connecting part through the Green joint.

In other specific embodiments, the multi-switch gastric tube device of embodiments of the present invention further comprises an alarm assembly electrically connected to the timer switch. The alarm component can be an alarm lamp, an alarm bell or a module formed by combining the alarm lamp and the alarm bell. When the timing switch is not started according to a preset time interval or is not normally closed after being started, an alarm is given out through the alarm component. In practical applications, there are multiple implementations of the timing switch, and the foregoing embodiments describe a possible implementation that includes a timing element, a control element and an electrically controlled switch element, which are not described herein again.

In other specific embodiments, as shown in fig. 6a, the multi-switch gastric tube device of embodiments of the present invention further comprises a guiding assembly comprising a power-supplying body 61 and a fiber-attached guiding wire 62. The power supply body 61 is connected to the guide wire 62, and the power supply body 61 is provided therein with a power supply and a light source electrically connected to the power supply for supplying light to the optical fiber.

As shown in fig. 7 to 10, the guide wire 62 with the optical fiber attached thereto is inserted into the outer tube 73 through the connector 74.

The bottom end of the guide wire 62 reaches the distribution region of the through-holes 731.

In some specific embodiments, the power supply body 61 is provided with a power supply switch 611, as shown in fig. 6 a.

The light source is electrically connected to a power source through a power switch 611. When the power switch 611 is turned on, the power is connected to the light source, and the light source is turned on. When the power switch 611 is turned off, the connection between the power source and the light source is interrupted, and the light source is turned off.

In particular, the light source may be an LED light source.

In addition, a holding operation portion 612 may be disposed outside the power supply main body 61.

As shown in fig. 6b, one end of the guide wire 62 is provided with a guide wire connector 621 connected to an optical fiber. A light supply connector 613 is provided at one end of the power supply main body 61. The guiding wire connector 621 is connected to the light supply connector 613, and light emitted from the light source is transmitted to the optical fiber through the light supply connector 613 and the guiding wire connector 621, so that the optical fiber emits light. The guide wire 62 with the optical fiber attached thereto is inserted into the outer tube 73 through the connector 74 shown in fig. 7 to 10, and the bottom end of the guide wire 62 reaches the distribution region of the through-hole 731. At this time, the operator inserts the gastric tube device, and during the operation, the operator determines the position of the through hole 731 for sputum aspiration by observing the light while descending the tube, and after the insertion is successful, the guide wire 62 to which the optical fiber is attached is drawn out.

In addition, a cover may be provided on the connection head 74 to cover the connection head 74 in a non-use state, thereby preventing dust or various foreign matters from entering.

According to the multi-switch stomach tube device provided by the technical scheme of the embodiment of the invention, feeding liquid is input into the outer tube pipeline through the connector by feeding equipment, the negative pressure equipment is connected to the inner tube pipeline through the negative pressure connecting part and performs negative pressure suction at regular time through the control pipeline, the through hole is formed in the region, attached to the inner wall of the outer tube pipeline, of the outer wall of the inner tube pipeline in close fit at the tail end of the inner tube pipeline, and sputum can be safely sucked out, so that the feeding and sputum suction functions are realized simultaneously, the medical operation is more convenient, the efficiency is improved, the pain of a patient is relieved, and the multi-switch stomach tube device has better applicability. Meanwhile, the optical fiber attached to the guide wire emits light, when an operator places the gastric tube device into a patient body, the operator can observe the light emitted in the body while operating the gastric tube device, and the position of the through hole for sucking phlegm can be rapidly and accurately determined, so that the efficiency is further improved, and the discomfort of the patient is relieved. In addition, the timing switch can be opened at a certain time interval to perform negative pressure suction, the workload of a nurse is greatly reduced while timely and effective negative pressure suction is guaranteed, the pipeline is closed through mechanical switches in emergency or accident situations, the safety is further guaranteed, and the overall safety and reliability are further improved by the aid of the alarm assembly and the timing switch.

The multi-switch stomach tube device provided by each embodiment of the invention is convenient for an operator to observe the position of the lower tube during operation, reduces the operation time and operation errors, and can reduce the discomfort of a patient. The lower tube is more reasonable in position, and is beneficial to absorbing sputum, other secretions and foreign matters, so that patients with various diseases can obviously benefit.

According to the embodiment of the invention, the structure of the stomach tube is improved, so that the positive effect of preventing aspiration is realized under the condition that the nutrient solution can be normally fed. The common pathway leading to aspiration, whether oral secretions, gastric contents or food, foreign bodies, is in the laryngopharynx below the epiglottis and above the cricoid. The stomach tube device provided by the embodiment of the invention can be used for more accurately and efficiently positioning through the guide assembly, and can be used for intermittently performing negative pressure suction at preset time intervals through the control pipeline so as to effectively suck secretions in a patient body, reduce aspiration from various sources and effectively reduce the workload of medical staff.

Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.