CN111449730B

CN111449730B - Safe puncture channel expanding device for intravascular interventional therapy

Info

Publication number: CN111449730B
Application number: CN202010257844.XA
Authority: CN
Inventors: 孙喜伟; 张晶; 程志华
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-03-19
Anticipated expiration: 2040-04-03
Also published as: CN111449730A

Abstract

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.

Description

Safe puncture channel expanding device for intravascular interventional therapy

Technical Field

The utility model relates to the technical field of medical treatment, specifically a safe type is interventional therapy in blood vessel is with puncture way expanding unit.

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

The utility model provides a not enough to prior art, the utility model provides a safe type endovascular intervention treatment is with puncture way expanding unit possesses the automatically regulated expanding force when vasoconstriction, prevents advantages such as vascular damage, has solved current expanding unit and can't adjust expanding force when the vasoconstriction appears in the blood vessel, probably leads to the contact surface damage of blood vessel and device, to the unfavorable problem of the vascular healing after the puncture.

(II) technical scheme

In order to realize the above-mentioned automatically regulated expanding force when vasoconstriction, prevent vascular damage's purpose, the utility model provides a 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 foreign steamer surface of bearing wheel rotates through the stay cord and is connected with the gas board, the bottom sliding connection of gas board has the breather pipe, the one end fixedly connected with bellows that air spring was kept away from to the breather pipe, the bottom interlude of breather pipe is provided with stifled gas board, the bottom of breather pipe and the right side that is located stifled gas board interlude are provided with the gas leakage pole, the below of dynamometry pole is provided with the magnetic force piece, the bottom sliding connection of magnetic force piece has the pressure pole.

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

Preferably, the side of the rectangular air bag is provided with a pressing plate, and the pressing plate 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 adapting wheel in a winding mode 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 is contracted.

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 utility model provides a safe type endovascular intervention treatment is with puncture way expanding unit possesses following beneficial effect:

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, the rectangular frame for preventing contraction extrudes the inner catheter, increases the friction force between the catheter and the rectangular frame, and influences treatment, so that the inner diameter of the rectangular frame is adjusted when the blood vessel contracts, and the effect of influencing the catheter use of a doctor is prevented.

Drawings

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

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

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

FIG. 4 is a schematic view of the mechanism for connecting the structure of the present invention to the driven wheel;

FIG. 5 is a cross-sectional view of the structure sensing needle of the present invention;

FIG. 6 is a schematic view of the 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 with the force-measuring rod;

fig. 8 is a schematic view of the structure of the ventilation tube 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, a puncture path expanding device for safe intravascular interventional therapy comprises a rectangular frame 1, the rectangular frame 1 is made of stainless steel, which can effectively prevent equipment from being corroded, greatly prolongs the service life of the equipment, reduces the production cost, and has an indispensable effect on enterprises, the rectangular frame 1 is composed of 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 flattening plate and is fixedly extruded at the inner side of the rectangular air bag 2 by a buffer spring, so as to ensure the flatness of the rectangular air bag 2, one side of the two rectangular frames 1 opposite to each other is fixedly connected with an air box 3, one side of the two air boxes 3 opposite to each other is fixedly connected with a communicating pipe 7, the inside of the air box 3 is slidably connected with an air pushing plate 4, the side surface of the air pushing plate 4 is, 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 fixedly connected with bellows 22 that air spring 13 was kept away from to breather pipe 17, bellows 22 continuously operates, the bottom of breather pipe 17 alternates and is provided with stifled gas board 20, the bottom of breather pipe 17 and the right side that is located stifled gas board 20 alternate and is provided with hourglass gas pole 21, the below of dynamometry pole 14 is provided with magnetic block 18, the bottom sliding connection of magnetic block 18 has pressure rod 19, the bottom of pressure rod 19 is provided with the lever, and pressure rod 19 is greater than the distance of stifled gas board 20 apart from the distance of upwarp point apart from stifled gas board 20, because the displacement that the vasoconstriction produced is far less than stifled gas board 20's removal displacement, consequently need increase the displacement size of stifled gas board 20 through lever principle.

After the puncture needle is used for penetrating the blood vessel, a doctor pulls the blood vessel open by using a special draw hook, and then inserts the expansion device into the puncture hole to form a puncture channel, as shown in fig. 1.

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, the air spring 13 is gradually inflated, the elastic force is gradually increased, in the process that the elastic force is increased, 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, the vent pipe 17 is plugged, when the vent pipe 17 is completely plugged by the air sealing plate 16, the air spring 13 cannot be inflated continuously by the air box 22, 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, air spring 13 shrink elasticity reduces for whole rectangular frame 1 internal diameter reduces, the extrusion force of constriction blood vessel to rectangular frame 1 obtains releasing, consequently rectangular frame 1 reduces to the expansion force of blood vessel, because metal block and magnetic block 18 can constantly break off magnetic force and break away from the attraction when removing, consequently dynamometry pole 14 can constantly reciprocating cycle, restore initial size until rectangular frame 1 resumes to the expansion force of blood vessel, thereby reached automatically regulated expansion force when vasoconstriction, prevent the effect of vascular damage.

When a patient is nervous, not only the blood vessel can contract, but also the muscle of the patient can contract, under the action 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 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 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 up, 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, the contracted rectangular frame 1 is prevented from extruding the inner conduit, and the friction, the treatment is influenced, so that the inner diameter of the rectangular frame 1 is adjusted when the blood vessel is contracted, and the effect of using the catheter by a doctor is prevented from being influenced.

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.

Claims

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 (, the air spring type air spring comprises a rectangular frame (1), an air spring (13) is arranged inside the rectangular frame (1), a force measuring rod (14) is fixedly connected to the surface of the air spring (13), a bearing wheel (15) is rotatably connected to the left side of the force measuring rod (14) through a pull rope, an air sealing plate (16) is rotatably connected to the outer wheel surface of the bearing wheel (15) through the pull rope, an air vent pipe (17) is slidably connected to the bottom of the air sealing plate (16), an air bellow (22) is fixedly connected to one end, far away from the air spring (13), of the air vent pipe (17), an air blocking plate (20) is arranged at the bottom of the air vent pipe (17) in an inserting mode, an air leakage rod (21) is arranged at the bottom of the air vent pipe (17) and on the right side of the air blocking plate (20) in an inserting mode, a magnetic block (18) is arranged below, the bottom of dynamometry pole (14) is provided with the metal block, the gas leakage hole has been seted up to the bottom of breather pipe (17), the bottom of pressure pole (19) is provided with the lever, and the distance of pressure pole (19) apart from the perk point is greater than the distance of stifled gas board (20) apart from the perk point.

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.