阅读说明：本技术 一种安全型血管内介入治疗用穿刺道扩张装置 (Safe puncture channel expanding device for intravascular interventional therapy ) 是由 孙喜伟 张晶 程志华 于 2020-04-03 设计创作，主要内容包括：本发明公开一种安全型血管内介入治疗用穿刺道扩张装置,包括矩形架,所述矩形架底部固定连接有矩形气囊,两个所述矩形架相背的一侧固定连接有气箱,两个所述气箱相对的一侧固定连接有连通管,所述气箱的内部滑动连接有推气板,所述偏转杆的顶部转动连接有连动杆,所述通气管远离空气弹簧的一端固定连接有风箱,所述通气管的底部穿插设置有堵气板,所述通气管的底部且位于堵气板的右侧穿插设置有漏气杆,所述测力杆的下方设置有磁力块,所述磁力块的底部滑动连接有压力杆,该安全型血管内介入治疗用穿刺道扩张装置,通过空气弹簧与测力杆的配合使用,从而达到了在血管收缩时自动调节扩张力,防止血管损伤的效果。(The invention discloses a safe puncture channel expansion device for intravascular interventional therapy, which comprises rectangular frames, wherein the bottom of each rectangular frame is fixedly connected with a rectangular air bag, one side of each rectangular frame, which is opposite to each other, is fixedly connected with an air box, one side of each air box, which is opposite to each other, is fixedly connected with a communicating pipe, the inner parts of the air boxes are slidably connected with air pushing plates, the tops of deflection rods are rotatably connected with linking rods, one ends of the air pipes, which are far away from an air spring, are fixedly connected with air boxes, the bottoms of the air pipes are penetrated and provided with air blocking plates, the bottoms of the air pipes, which are positioned on the right sides of the air blocking plates, are penetrated and provided with air leakage rods, magnetic blocks are arranged below the force measuring rods, the bottoms of the magnetic blocks are slidably connected with pressure rods, and the safe puncture channel expansion device for intravascular interventional therapy is matched with the air springs and the force measuring rods for, preventing vascular injury.)

1. The utility model provides a safe type endovascular intervention treatment is with puncture way expanding unit, includes rectangle frame (1), its characterized in that: the rectangular air bag type air compressor is characterized in that a rectangular air bag (2) is fixedly connected to the bottom of the rectangular frame (1), two air boxes (3) are fixedly connected to one side of the rectangular frame (1) opposite to each other, a communicating pipe (7) is fixedly connected to one side of the two air boxes (3), an air pushing plate (4) is connected to the inside of each air box (3) in a sliding mode, a deflection rod (5) is rotatably connected to the side face of the air pushing plate (4), a linkage rod (6) is rotatably connected to the top of the deflection rod (5), a driven wheel (8) is rotatably connected to the bottom of the linkage rod (6), a transmission rod (9) is connected to the surface of an inner wheel of the driven wheel (8) in a meshing mode, induction needles (10) are slidably connected to the bottom of the transmission rod (9), a driving wheel (11) is arranged inside the induction needles (, an air spring (13) is arranged inside the rectangular frame (1), the surface of the air spring (13) is fixedly connected with a force measuring rod (14), the left side of the force measuring rod (14) is rotationally connected with a receiving wheel (15) through a pull rope, the outer wheel surface of the bearing wheel (15) is rotationally connected with an air sealing plate (16) through a pull rope, the bottom of the air seal plate (16) is connected with an air pipe (17) in a sliding way, one end of the air pipe (17) far away from the air spring (13) is fixedly connected with an air box (22), the bottom of the vent pipe (17) is inserted with an air blocking plate (20), the bottom of the vent pipe (17) and the right side of the air blocking plate (20) are inserted with an air leakage rod (21), a magnetic block (18) is arranged below the force measuring rod (14), and the bottom of the magnetic block (18) is connected with a pressure rod (19) in a sliding manner.

2. A puncture needle dilating apparatus for safe endovascular intervention according to claim 1, wherein: the rectangular frame (1) is composed of four connecting plates, and each connecting plate is provided with an air spring (13).

3. A puncture needle dilating apparatus for safe endovascular intervention according to claim 1, wherein: the side face of the rectangular air bag (2) is provided with a pressing plate, and the pressing plate is fixedly extruded on the inner side of the rectangular air bag (2) by a buffer spring.

4. A puncture needle dilating apparatus for safe endovascular intervention according to claim 1, wherein: the force measuring rod (14) is connected with the inner wheel of the receiving wheel (15) in a winding way through a pull rope.

5. A puncture needle dilating apparatus for safe endovascular intervention according to claim 1, wherein: and a metal block is arranged at the bottom of the force measuring rod (14).

6. A puncture needle dilating apparatus for safe endovascular intervention according to claim 1, wherein: the bottom of the vent pipe (17) is provided with an air leakage hole.

7. A puncture needle dilating apparatus for safe endovascular intervention according to claim 1, wherein: the bottom of pressure pole (19) is provided with the lever, and pressure pole (19) apart from the distance of perk point to be greater than stifled gas board (20) apart from the distance of perk point.

Technical Field

The invention relates to the technical field of medical treatment, in particular to a puncture channel expansion device for safe intravascular interventional therapy.

Background

The interventional therapy method is from interventional radiology, and is characterized by that it utilizes medical imaging equipment of X-ray fluoroscopy, CT positioning and B-type ultrasonic instrument as guide, and makes the specially-made catheter or equipment pass through the natural duct of human artery, vein and digestive system, biliary tract or drainage duct after operation and reach the pathological change region in the body to obtain histiocyte, bacteria or biochemical data, and can make radiography to obtain image data so as to attain the goal of diagnosing disease, at the same time can make various special treatments.

When puncture treatment is carried out on blood vessels, a puncture channel needs to be constructed by using a blood vessel expansion device, so that a catheter can penetrate through the blood vessels, the patient can inevitably have nervous emotion in the process of receiving puncture, further the contraction of the blood vessels is caused, the expansion force is increased when the blood vessels contract by using the conventional expansion device, the contact surface between the blood vessels and the device is possibly damaged, and the healing of the blood vessels after puncture is unfavorable.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a safe puncture channel expansion device for endovascular interventional therapy, which has the advantages of automatically adjusting expansion force during vasoconstriction, preventing vascular injury and the like, and solves the problems that the contact surface between a blood vessel and the device is possibly damaged and the healing of the blood vessel after puncture is not favorable because the expansion force cannot be adjusted when the blood vessel contracts in the conventional expansion device.

(II) technical scheme

In order to realize the purposes of automatically adjusting the expansion force and preventing the blood vessel from being damaged during the vasoconstriction, the invention provides the following technical scheme: a puncture channel expansion device for safe intravascular interventional therapy comprises rectangular frames, wherein rectangular air bags are fixedly connected to the bottoms of the rectangular frames, air boxes are fixedly connected to one sides, opposite to each other, of the two rectangular frames, communicating pipes are fixedly connected to one sides, opposite to each other, of the two air boxes, an air pushing plate is connected to the inside of each air box in a sliding mode, a deflection rod is connected to the side face of each air pushing plate in a rotating mode, the top of the deflection rod is connected with a linkage rod in a rotating mode, a driven wheel is connected to the bottom of the linkage rod in a rotating mode, a transmission rod is connected to the surface of an inner wheel of the driven wheel in a meshing mode, an induction needle is connected to the bottom of the transmission rod in a sliding mode, a driving wheel is arranged inside the induction needle, an induction air spring is connected to the surface of the driving wheel in a rotating mode, a force measuring rod is, the outer wheel surface of the bearing wheel is rotatably connected with an air sealing plate through a pull rope, the bottom of the air sealing plate is connected with a vent pipe in a sliding mode, one end, away from the air spring, of the vent pipe is fixedly connected with an air box, an air blocking plate is arranged at the bottom of the vent pipe in an inserting mode, an air leakage rod is arranged at the bottom of the vent pipe and located on the right side of the air blocking plate in an inserting mode, a magnetic block is arranged below the force measuring rod, and the bottom of the magnetic block is connected with a pressure rod in a sliding mode;

preferably, the rectangular frame consists of four connecting plates, and each connecting plate is provided with an air spring;

preferably, a pressing plate is arranged on the side face of the rectangular air bag and is fixedly extruded on the inner side of the rectangular air bag by a buffer spring, so that the rectangular air bag is ensured to be flat;

preferably, the force measuring rod is connected with an inner wheel of the bearing wheel in a winding manner through a pull rope;

preferably, the bottom of the force measuring rod is provided with a metal block which is mutually attracted with the magnetic block when the blood vessel contracts;

preferably, the bottom of the vent pipe is provided with an air leakage hole;

preferably, the bottom of pressure pole is provided with the lever, and the distance of pressure pole apart from the perk point is greater than the distance of stifled gas board apart from the perk point, because the displacement that vasoconstriction produced is far less than the removal displacement of stifled gas board, consequently need increase the displacement size of stifled gas board through lever principle, bellows continuously operates.

(III) advantageous effects

Compared with the prior art, the invention provides a safe puncture channel expansion device for intravascular interventional therapy, which has the following beneficial effects:

1. this safe type is puncture way expanding unit for endovascular intervention treatment, through the cooperation of air spring and dynamometry pole use, use pjncture needle with the blood vessel break-through back, the doctor uses professional drag hook to pull open the blood vessel, again with the expansion device interpenetration in the puncture, form puncture channel, as shown in figure 1.

The motor is started afterwards, the bellows operates, the bellows inflates the air spring through the breather pipe, lead to the air spring to be full gradually, elasticity is increased gradually, at the in-process of elasticity grow, the dynamometry pole is pulled right, stay cord pulling receiving wheel through the left side setting makes the receiving wheel anticlockwise rotate, the drawing that rethread outer wheel surface set up produces the pulling to the gas sealing plate, make the gas sealing plate move down gradually, carry out the shutoff to the breather pipe, when the gas sealing plate completely stopped the breather pipe, the bellows can't continue to inflate the air spring, the expansion force at this moment has also reached the biggest air spring elasticity that the blood vessel adapted.

The catheter passes through the rectangular frame and then carries out subsequent treatment, in the treatment process, the patient can contract the blood vessel due to tension to cause the extrusion force of the blood vessel to the rectangular frame to increase, and the extrusion force is the expansion force borne by the blood vessel, so that the air spring in the rectangular frame is compressed to cause the force measuring rod to move leftwards, the air sealing plate moves upwards again, the vent pipe is opened again, because the metal block is arranged at the bottom of the force measuring rod and is contacted with the magnetic block, when the force measuring rod moves leftwards, the magnetic block is driven to move leftwards to compress the pressure rod downwards, the pressure rod moves downwards to cause the air blocking plate to move upwards through the lever below, the vent pipe is not blocked and is not ventilated, the air leakage rod moves downwards under the action of the lever on the left side to open the air leakage hole of the vent pipe, further the air spring leaks, the contraction elasticity of the air spring is reduced, and the, the extrusion force of the contracted blood vessel to the rectangular frame is released, so the expansion force of the rectangular frame to the blood vessel is reduced, and the metal block and the magnetic block can be continuously disconnected to separate from attraction when moving, so the force measuring rod can continuously circulate back and forth until the expansion force of the rectangular frame to the blood vessel recovers to the initial size, thereby the automatic adjustment expansion force during the vasoconstriction is achieved, and the effect of preventing the blood vessel from being damaged is achieved.

2. The puncture path expanding device for the safe intravascular interventional therapy is used by matching the transmission rod with the induction needle, when a patient is tense, not only the blood vessel can contract, but also the muscle of the patient can contract, due to the action of local anesthetic, a doctor already induces the needle to be inserted into the muscle near the punctured blood vessel, the induction needle is fine and small and cannot cause great damage to the patient, when the muscle of the patient contracts, the elastic arc-shaped protrusion arranged at the bottom of the induction needle is compressed by the muscle, the generated air pressure pushes the induction air rod to drive the driving wheel to rotate, the driving wheel is meshed and connected with the transmission rod above, so the transmission rod is transversely pushed to drive the driven wheel meshed with the transmission rod to rotate, the linkage rod is upwards jacked to drive the deflection rod to rotate, the deflection rod pulls the air pushing plate to pump the rectangular air bag through the communication pipe, and the inner diameter of the rectangular, prevent that the rectangle frame of shrink from causing the extrusion to inside pipe, increase the frictional force of pipe and rectangle frame, influence treatment and go on to reached adjustment rectangle frame internal diameter when vasoconstriction, prevented to influence the effect that the doctor used the pipe.

Drawings

FIG. 1 is a front cross-sectional view of the structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a schematic drawing showing the rectangular air bag being evacuated according to the present invention;

FIG. 4 is a schematic view of the mechanism of the present invention in connection with a driven wheel;

FIG. 5 is a cross-sectional view of a structural sense pin of the present invention;

FIG. 6 is a schematic view of a structurally stable expansion force mechanism of the present invention;

FIG. 7 is an enlarged view of the mechanism for connecting the structure of the present invention to the force measuring bar;

FIG. 8 is a schematic view of the ventilation tube blow-by transmission of the present invention.

In the figure: 1. rectangular frame, 2, rectangle gasbag, 3, gas tank, 4, push away the gas board, 5, deflection pole, 6, trace, 7, communicating pipe, 8, follow driving wheel, 9, transfer line, 10, response needle, 11, action wheel, 12, response gas pole, 13, air spring, 14, dynamometry pole, 15, take on turns, 16, the board that seals up the gas, 17, breather pipe, 18, magnetic block, 19, pressure bar, 20, stifled gas board, 21, gas leakage pole, 22, bellows.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, a puncture path expanding device for safe intravascular interventional therapy comprises a rectangular frame 1, wherein the rectangular frame 1 is made of stainless steel, so that equipment can be effectively prevented from being corroded, the service life of the equipment is greatly prolonged, the production cost is reduced, and the device plays an indispensable role in enterprises, the rectangular frame 1 comprises four connecting plates, each connecting plate is provided with an air spring 13, the bottom of the rectangular frame 1 is fixedly connected with a rectangular air bag 2, the side surface of the rectangular air bag 2 is provided with a pressing plate and is fixedly extruded on the inner side of the rectangular air bag 2 by a buffer spring to ensure that the rectangular air bag 2 is flat, one side of the two rectangular frames 1, which is opposite to each other, is fixedly connected with an air box 3, one side of the two air boxes 3, which is opposite to each other, is fixedly connected with a communicating pipe 7, the air pushing plate 4 is slidably connected inside the air box 3, and the side surface of, the top of the deflection rod 5 is rotatably connected with a linkage rod 6, the bottom of the linkage rod 6 is rotatably connected with a driven wheel 8, the surface of an inner wheel of the driven wheel 8 is meshed with a transmission rod 9, the bottom of the transmission rod 9 is slidably connected with an induction needle 10, the inside of the induction needle 10 is provided with an active wheel 11, the surface of the active wheel 11 is rotatably connected with an induction air rod 12, the inside of the rectangular frame 1 is provided with an air spring 13, the surface of the air spring 13 is fixedly connected with a force measuring rod 14, the bottom of the force measuring rod 14 is provided with a metal block which is mutually attracted with a magnetic block 18 when a blood vessel contracts, the force measuring rod 14 is wound and connected with the inner wheel of the bearing wheel 15 through a pull rope, the left side of the force measuring rod 14 is rotatably connected with a bearing wheel 15 through a pull rope, the outer wheel surface of the bearing wheel 15 is rotatably connected with an air, one end of the vent pipe 17, which is far away from the air spring 13, is fixedly connected with an air box 22, the air box 22 continuously operates, an air blocking plate 20 is inserted into the bottom of the vent pipe 17, an air leakage rod 21 is inserted into the bottom of the vent pipe 17 and positioned on the right side of the air blocking plate 20, a magnetic block 18 is arranged below the force measuring rod 14, a pressure rod 19 is slidably connected to the bottom of the magnetic block 18, a lever is arranged at the bottom of the pressure rod 19, the distance from the pressure rod 19 to the warping point is greater than the distance from the air blocking plate 20 to the warping point, and the displacement generated by vascular contraction is far smaller than the displacement of the air blocking plate 20, so that the displacement of the air blocking plate 20 needs to be increased;

after the puncture needle is used for penetrating the blood vessel, a doctor pulls the blood vessel open by using a special drag hook, and then inserts the expansion device into the puncture hole to form a puncture channel, as shown in the figure I;

then, the motor is started, the air box 22 operates, the air spring 13 is inflated through the vent pipe 17 by the air box 22, so that the air spring 13 is gradually inflated, the elastic force is gradually increased, in the process of increasing the elastic force, the force measuring rod 14 is pulled rightwards, the bearing wheel 15 is pulled through the pull rope arranged on the left side, the bearing wheel 15 rotates anticlockwise, the air sealing plate 16 is pulled through the stretching arranged on the surface of the outer wheel, the air sealing plate 16 gradually moves downwards to plug the vent pipe 17, when the vent pipe 17 is completely plugged by the air sealing plate 16, the air box 22 cannot continuously inflate the air spring 13, and the expansion force at the moment also reaches the maximum elastic force of the air spring 13 adapted to the blood vessel;

the catheter is passed through the rectangular frame 1, and then subsequent treatment is carried out, in the treatment process, the blood vessel is contracted due to tension of a patient, so that the extrusion force of the blood vessel to the rectangular frame 1 is increased, and the extrusion force is the expansion force borne by the blood vessel, so that the air spring 13 in the rectangular frame 1 is compressed, the force measuring rod 14 moves leftwards, the air sealing plate 16 moves upwards again, the vent pipe 17 is opened again, and at the moment, the metal block is arranged at the bottom of the force measuring rod 14 and is in contact with the magnetic block 18, so that when the force measuring rod 14 moves leftwards, the magnetic block 18 is driven to move leftwards, the pressure rod 19 is compressed downwards, the pressure rod 19 moves downwards, the air sealing plate 20 moves upwards through the lever below, the vent pipe 17 is not sealed for ventilation, the air leakage rod 21 moves downwards under the action of the lever on the left side, the air leakage hole of the vent pipe 17 is opened, and further the, the contraction elastic force of the air spring 13 is reduced, so that the inner diameter of the integral rectangular frame 1 is reduced, and the extrusion force of the contracted blood vessel to the rectangular frame 1 is released, so that the expansion force of the rectangular frame 1 to the blood vessel is reduced, and the metal block and the magnetic block 18 can continuously break the magnetic force to separate from the attraction when moving, so that the force measuring rod 14 can continuously circulate back and forth until the expansion force of the rectangular frame 1 to the blood vessel returns to the initial magnitude, thereby achieving the effects of automatically adjusting the expansion force during the vasoconstriction and preventing the blood vessel from being damaged;

when a patient is nervous, not only the blood vessel can contract, but also the muscle of the patient can contract, due to the effect of local anesthetic, a doctor already inducts that the needle 10 is inserted into the muscle near the punctured blood vessel, and the inducting needle 10 is tiny and can not cause great damage to the patient, when the muscle of the patient contracts, the elastic arc-shaped protrusion arranged at the bottom of the inducting needle 10 is compressed by the muscle, the generated air pressure pushes the inducting air rod 12, further the driving wheel 11 is driven to rotate, the driving wheel 11 is meshed with the driving rod 9 above, therefore, the driving rod 9 is transversely pushed, the driven wheel 8 meshed with the driving rod is driven to rotate, further the linkage rod 6 is upwards jacked, the deflection rod 5 is driven to rotate, the deflection rod 5 pulls the air pushing plate 4 to pump the rectangular air bag 2 through the communicating pipe 7, the inner diameter of the rectangular frame 1 is increased, and the contracted rectangular frame, the friction force between the catheter and the rectangular frame 1 is increased, and the treatment is influenced, so that the effect of adjusting the inner diameter of the rectangular frame 1 during vasoconstriction and preventing the influence on the use of the catheter by a doctor is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.