CN110478009B

CN110478009B - Cardiovascular intervention device

Info

Publication number: CN110478009B
Application number: CN201910892530.4A
Authority: CN
Inventors: 井然; 李宇晟; 钱招昕; 余再新; 吴紫莺; 李嘉添; 何苗; 谢文清
Original assignee: Xiangya Hospital of Central South University
Current assignee: Xiangya Hospital of Central South University
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2021-07-06
Anticipated expiration: 2039-09-20
Also published as: CN110478009A

Abstract

The invention provides a cardiovascular intervention device, which comprises a needle tube, a needle head, a piston body, a plug tube and a position control component, wherein the front end of the needle tube is provided with a head cover, the head cover is connected with a guide tube, the other end of the guide tube is connected with a collection bag, the guide tube is provided with a control valve, the needle head is arranged on the head cover, the piston body is movably arranged in the needle tube, the piston body comprises a plug head and a plug rod which are connected, the plug rod is provided with a fourth through hole penetrating through the front end surface and the rear end surface of the plug rod, the plug tube is arranged in the needle tube and connected with the head cover, the front end of the plug head is provided with a plug hole matched with the plug tube, the third through hole on the plug head is communicated with the fourth through hole and the plug hole, the piston body is provided with a separation component, the separation component. The cardiovascular intervention device provided by the invention can be repeatedly utilized and has lower cost.

Description

Cardiovascular intervention device

Technical Field

The invention relates to the field of medical instruments, in particular to a cardiovascular intervention device.

Background

Cardiovascular interventional therapy is a novel technology for diagnosing and treating cardiovascular diseases, during treatment, a puncture needle is generally used for directly puncturing a blood vessel, then an injector is dismounted from the puncture needle, and a guide wire is sent into the blood vessel through the puncture needle head, so that blood overflow is easily caused by operation, the operation surface of a doctor is polluted, cross infection is easily caused, and the operation of the doctor is not facilitated.

The published patent CN201510050062.8 discloses a cardiovascular intervention device, which comprises a puncture device and a fixing device, wherein the puncture device comprises a needle tube, the needle tube is formed by connecting a front end with a through hole, a plurality of sleeves and a tail end with a rear wing in a threaded manner, a membrane breaking tube is arranged at the top of the front end, one end of the membrane breaking tube, which extends out of the needle tube, is provided with a needle head, the other end of the membrane breaking tube extends into the needle tube, a push rod is arranged in the needle tube, the push rod is formed by connecting a rubber plug, the sleeves and the tail end with the push rod in a threaded manner, one side of the front end is provided with a liquid storage cavity, one side of the rubber plug is provided with a liquid inlet, the rubber plug is provided with a through hole matched with the membrane breaking tube, a gauze. But the sealing diaphragm in the scheme can not be reused after being punctured, and the cost is higher.

In summary, how to realize recycling of the cardiovascular interventional device is an urgent problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a cardiovascular intervention device, and solves the problems that a sealing diaphragm cannot be reused after being punctured and the cost is high in the conventional cardiovascular intervention device.

In order to solve the technical problems, the invention provides the following technical scheme: a cardiovascular intervention device comprises a needle tube, a needle head, a piston body, a plug tube and a position control component, wherein the front end of the needle tube is provided with a head cover, the head cover is connected with a guide tube, the other end of the guide tube is connected with a collection bag, the guide tube is provided with a control valve, the needle head is arranged on the head cover, the piston body is movably arranged in the needle tube, the piston body comprises a plug head and a plug rod which are connected, the plug rod is provided with a fourth through hole which penetrates through the front end surface and the rear end surface of the plug rod, the plug tube is arranged in the needle tube and is connected on the head cover, the front end of the plug head is provided with a plug hole matched with the plug tube, the third through hole on the plug head is communicated with the fourth through hole and the piston body, the piston body is provided with a separation component which is used for sealing the fourth through hole, the position control component is arranged on, the position control assembly is used for limiting the position of the piston body relative to the needle tube.

Furthermore, the separation assembly comprises a plurality of separation parts and a plurality of control panels in one-to-one correspondence with the separation parts, the separation parts are arranged on the plug head in a sliding mode, the control panels are fixedly connected to the inner wall of the needle tube, track grooves are formed in the control panels, convex column portions matched with the track grooves are arranged on the separation parts, the separation plate portions of the separation parts are arranged in the sliding grooves of the plug rod in a sliding mode, the separation plate portions can stretch into the fourth through hole, and the separation plate portions can be spliced into a complete circular separation plate to seal the fourth through hole.

Furthermore, the track groove comprises a first limiting section, a transition section and a second limiting section, wherein the front end of the first limiting section is communicated with the rear end of the second limiting section through the transition section.

Furthermore, the blocking assembly further comprises a plurality of first springs in one-to-one correspondence with the blocking pieces, one ends of the first springs are connected to the blocking pieces, and the other ends of the first springs are connected to the plug heads.

Further, accuse position subassembly includes gag lever post and second spring, the gag lever post activity sets up on the needle tubing, just the front end of gag lever post stretches into in the needle tubing, the front end of gag lever post is provided with the plug, be provided with on the cock stem with first draw-in groove, second draw-in groove and the third draw-in groove of plug matched with, the second spring housing is established on the gag lever post, just the second spring sets up the plug with between the needle tubing.

Furthermore, a side through hole penetrating through the peripheral face of the plug head is formed in the plug head, the other end of the side through hole is communicated with the third through hole, a liquid injection hole matched with the side through hole is formed in the pipe wall of the needle pipe, and a liquid injection joint is installed on the liquid injection hole.

Furthermore, the plug head is sleeved with two second sealing rings, and the side through hole is located between the two second sealing rings.

Further, the periphery of the plug tube is sleeved with a first sealing ring.

According to the technical scheme, the invention has the following beneficial effects:

in the invention, the needle tube, the head cover, the tail cover, the needle head, the piston body, the plug tube, the separation component and the position control component can be repeatedly used, the production and manufacturing cost is reduced, the resource waste is avoided, and in addition, the detachable structure of the device is convenient for medical personnel to clean and disinfect the device.

The invention is described in further detail below with reference to the figures and the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the piston body according to the present invention.

Fig. 3 is a schematic sectional view at a-a in fig. 1.

Fig. 4 is a schematic structural view of the barrier of the present invention.

FIG. 5 is another schematic structural diagram of the present invention.

FIG. 6 is a schematic view of another embodiment of the present invention.

Description of reference numerals: the injection device comprises a needle tube 1, an injection hole 11, an injection joint 12, a second through hole 13, a head cover 2, a first through hole 21, a tail cover 3, a needle 4, a piston body 5, a plug head 51, a third through hole 511, a plug hole 512, a side through hole 513, a plug rod 52, a fourth through hole 521, a sliding chute 522, a first clamping groove 523, a second clamping groove 524, a third clamping groove 525, a second sealing ring 53, a push ring 54, a plug tube 6, a first sealing ring 61, a fifth through hole 62, a collection bag 7, a guide pipe 71, a control valve 72, a blocking component 8, a blocking part 81, a blocking plate part 811, a horizontal rod part 812, a vertical rod part 813, a convex column part 814, a control plate 82, a track groove 821, a first limit section 8211, a transition section 8212, a second limit section 8213, a first spring 83, a guide sleeve 84, a position control component 9, a limit rod 91, a plug 911 and a.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1 to 6, the present invention is further described, as shown in fig. 1, a cardiovascular intervention device includes a needle tube 1, a needle 4, a piston body 5, a plug tube 6 and a position control assembly 9, the front end of the needle tube 1 is connected with a head cover 2 through a screw thread, the head cover 2 is detachably connected with a conduit 71, the other end of the conduit 71 is connected with a collection bag 7, the conduit 71 is provided with a control valve 72, the rear end of the needle tube 1 is connected with a tail cap 3 through a screw thread, the needle 4 is detachably mounted on the head cover 2, the needle 4 is communicated with a first through hole 21 on the head cover 2, the piston body 5 is movably disposed in the needle tube 1, the piston body 5 includes a plug 51 and a plug 52, the front end of the plug 52 is connected to the plug 51, the rear end of the plug 52 extends outwards through the tail cap 3, and the rear end of the plug 52 is connected with a push ring 54 through the plug 52, the plug 52 is provided, the plug tube 6 is arranged in the needle tube 1, the plug tube 6 is connected to the head cover 2 through threads, a fifth through hole 62 of the plug tube 6 is communicated with a first through hole 21 in the head cover 2, a plug hole 512 matched with the plug tube 6 is formed in the front end of the plug head 51, a third through hole 511 in the plug head 51 is communicated with a fourth through hole 521 and the plug hole 512, a blocking component 8 is arranged on the piston body 5, the blocking component 8 is used for blocking the fourth through hole 521, the position control component 9 is arranged on the needle tube 1, and the position control component 9 is used for limiting the position of the piston body 5 relative to the needle tube 1.

As shown in fig. 1, 2, 3, and 4, the blocking assembly 8 includes four blocking parts 81 and four control plates 82, the four control plates 82 correspond to the four blocking parts 81 one by one, the blocking parts 81 are slidably disposed on the plug 51 through the guide sleeve 84, the blocking part 81 is composed of a blocking plate portion 811, a horizontal rod portion 812, a vertical rod portion 813, and a convex column portion 814, which are sequentially connected, the horizontal rod portion 812 is slidably fitted with the guide sleeve 84, the blocking plate portion 811 of the blocking part 81 is slidably disposed in the sliding slot 522 of the plug 52, and the front end of the blocking plate portion 811 can extend into the fourth through hole 521, the control plate 82 is fixedly connected to the inner wall of the needle tube 1, the control plate 82 is provided with a track groove 821 matched with the convex column portion 814, the track groove 82 includes a first limiting section 8211, a transition section 8212, and a second limiting section 8213, the front end of the first limiting section 8211 is communicated with the rear end of the second limiting section 8213 through the transition section 8212, the front end of the second limiting section 8213 penetrates through the front end face of the control plate 82, when the convex column portion 814 is accommodated in the first limiting section 8211, the four blocking plate portions 811 can be spliced into a complete circular blocking plate to seal the fourth through hole 521, as shown in fig. 6, when the convex column portion 814 is accommodated in the second limiting section 8213, the four blocking plate portions 811 are all pulled out from the fourth through hole 521, and at the moment, the fourth through hole 521 is communicated with the third through hole 511.

Preferably, the blocking assembly 8 further includes four first springs 83, the four first springs 83 correspond to the four blocking members 81 one by one, one end of each first spring 83 is connected to the corresponding blocking member 81, the other end of each first spring 83 is connected to the plug 51, and the four blocking plate portions 811 are in closer contact due to the arrangement of the first springs 83, so that the fourth through hole 521 is better sealed.

In addition, the number of the barriers 81 may also be set to two, three, or five.

As shown in fig. 5, the position control assembly 9 includes a limiting rod 91 and a second spring 92, the limiting rod 91 is movably disposed in the second through hole 13 of the needle tube 1, the front end of the limiting rod 91 passes through the second through hole 13 and extends into the needle tube 1, the rear end of the limiting rod 91 passes through the second through hole 13 and extends outward, the front end of the limiting rod 91 is provided with a plug 911, the plug rod 52 is provided with a first clamping groove 523, a second clamping groove 524 and a third clamping groove 525, which are matched with the plug 911, the second spring 92 is sleeved on the limiting rod 91, and the second spring 92 is disposed between the plug 911 and the needle tube 1.

The plug 51 is provided with a side through hole 513 penetrating through the outer peripheral surface of the plug 51, the side through hole 513 is arranged along the radial direction of the plug 51, the other end of the side through hole 513 is communicated with the third through hole 511, the tube wall of the needle tube 1 is provided with a liquid injection hole 11 matched with the side through hole 513, the liquid injection hole 11 is provided with a liquid injection joint 12, when liquid medicine needs to be injected, the piston body 5 and the position control assembly 9 are adjusted to enable the plug 911 to be clamped in the second clamping groove 524, at the moment, the liquid injection hole 11 on the needle tube 1 is communicated with the side through hole 513 on the plug 51, the plug tube 6 is inserted into the plug hole 512 of the plug 51, then the liquid medicine injector is connected onto the liquid injection joint 12, and under the action of external force, the liquid medicine flows into the plug hole through the liquid injection hole 11, the side through hole 513.

Preferably, the plug 51 is sleeved with two second sealing rings 53, and the side through hole 513 is located between the two second sealing rings 53.

Preferably, the plug tube 6 is sleeved with a first sealing ring 61 on the outer periphery.

As shown in fig. 1, 5 and 6, in use, a doctor punctures by holding the needle tube 1, when the needle 4 pierces a blood vessel, blood enters the needle tube 1, the control valve 72 on the conduit 71 is opened, a part of the blood flows into the collection bag 7 through the conduit 71, then the needle tube 1 is fixed on the patient, then the piston body 5 is pushed and the position control assembly 9 is adjusted, so that the plug 911 is clamped in the second clamping groove 524, at this time, the doctor can connect the liquid medicine injector to the liquid injection connector 12 to inject liquid medicine into the blood vessel of the patient, furthermore, in the process of pushing the piston body 5, the blood in the needle tube 1 is pressed into the collection bag 7, so that the operating face of the doctor is prevented from being polluted by the blood, cross infection is not easy to cause, then, the piston body 5 is pushed and the position control assembly 9 is adjusted, so that the plug 911 is clamped in the third clamping groove 525, in the process of moving the piston body, the four blocking members 81 are guided by the corresponding track grooves 821 to move radially outwards, so that the fourth through hole 521 is communicated with the third through hole 511, and then the doctor inserts the guide wire into the fourth through hole 521 of the plug rod 52 and controls the guide wire to sequentially pass through the third through hole 511 and the fifth through hole 62 of the plug tube 6 to enter the blood vessel through the needle 4 for interventional therapy.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The cardiovascular intervention device is characterized by comprising a needle tube (1), a needle head (4), a piston body (5), a plug tube (6) and a position control assembly (9), wherein the front end of the needle tube (1) is provided with a head cover (2), the head cover (2) is connected with a guide tube (71), the other end of the guide tube (71) is connected with a collection bag (7), the guide tube (71) is provided with a control valve (72), the needle head (4) is arranged on the head cover (2), the piston body (5) is movably arranged in the needle tube (1), the piston body (5) comprises a plug head (51) and a plug rod (52) which are connected, the plug rod (52) is provided with a fourth through hole (521) which penetrates through the front end face and the rear end face of the plug rod (52), the plug tube (6) is arranged in the needle tube (1), and the plug tube (6) is connected on the head cover (2), the front end of the plug head (51) is provided with a plug hole (512) matched with the plug tube (6), a third through hole (511) in the plug head (51) is communicated with the fourth through hole (521) and the plug hole (512), the piston body (5) is provided with a blocking component (8), the blocking component (8) is used for sealing the fourth through hole (521), the position control component (9) is arranged on the needle tube (1), the position control component (9) is used for limiting the position of the piston body (5) relative to the needle tube (1), the blocking component (8) comprises a plurality of blocking parts (81) and a plurality of control plates (82) corresponding to the plurality of blocking parts (81) one by one, the blocking parts (81) are arranged on the plug head (51) in a sliding manner, the control plates (82) are fixedly connected on the inner wall of the needle tube (1), and track grooves (821) are arranged on the control plates (82), the blocking part (81) is provided with a convex column part (814) matched with the track groove (821), a blocking plate part (811) of the blocking part (81) is arranged in a sliding groove (522) of the plug rod (52) in a sliding mode, the blocking plate part (811) can extend into the fourth through hole (521), a plurality of blocking plate parts (811) can be spliced into a complete circular blocking plate to seal the fourth through hole (521), and in the moving process of the piston body (5), the blocking part (81) moves outwards in the radial direction under the guide of the corresponding track groove (821) to enable the fourth through hole (521) to be communicated with the third through hole (511).

2. The cardiovascular interventional device of claim 1, wherein the track groove (821) comprises a first limiting section (8211), a transition section (8212) and a second limiting section (8213), wherein a front end of the first limiting section (8211) is in communication with a rear end of the second limiting section (8213) through the transition section (8212).

3. Cardiovascular interventional device according to claim 2, characterized in that the barrier assembly (8) further comprises a number of first springs (83) in one-to-one correspondence with a number of barriers (81), one end of the first springs (83) being connected to the barriers (81) and the other end of the first springs (83) being connected to the stopper (51).

4. The cardiovascular intervention device of claim 1, wherein the position control assembly (9) comprises a limiting rod (91) and a second spring (92), the limiting rod (91) is movably disposed on the needle tube (1), the front end of the limiting rod (91) extends into the needle tube (1), the front end of the limiting rod (91) is provided with a plug (911), the plug rod (52) is provided with a first clamping groove (523), a second clamping groove (524) and a third clamping groove (525) which are matched with the plug (911), the second spring (92) is sleeved on the limiting rod (91), and the second spring (92) is disposed between the plug (911) and the needle tube (1).

5. The cardiovascular intervention device of claim 1, wherein the plug (51) is provided with a side through hole (513) penetrating through the outer peripheral surface of the plug (51), the other end of the side through hole (513) is communicated with the third through hole (511), the wall of the needle tube (1) is provided with a liquid injection hole (11) matched with the side through hole (513), and the liquid injection joint (12) is installed on the liquid injection hole (11).

6. Cardiovascular interventional device according to claim 5, characterized in that the plug head (51) is sleeved with two second sealing rings (53), the lateral through hole (513) being located between the two second sealing rings (53).

7. Cardiovascular interventional device according to claim 1, characterized in that the plug tube (6) is sleeved on its outer circumference with a first sealing ring (61).