CN113133807A

CN113133807A - Disposable endangium stripping off device

Info

Publication number: CN113133807A
Application number: CN202110441978.1A
Authority: CN
Inventors: 孙蓬
Original assignee: Wuxi Dongfeng Yihe Technology Development Co ltd
Current assignee: Wuxi Dongfeng Yihe Technology Development Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-07-20
Anticipated expiration: 2041-04-23
Also published as: CN113133807B

Abstract

The invention discloses a disposable endangium stripping device, and relates to the technical field of novel endangium glass devices. The cutting device comprises a guide knife barrel, wherein the bottom end of the guide knife barrel is fixedly connected with an internally installed guide tube, the inside of the internally installed guide tube is connected with a knife carrying rod in a sliding mode, the inner side of one end of the knife carrying rod is welded with a circular cutting knife body, one side of the internally installed guide tube is provided with a rectangular cutting completion displaying groove, one side of the knife carrying rod is welded with a cutting completion indicating block, and the rectangular cutting completion displaying groove and the cutting completion indicating block are identical in size. The invention enables the device to be convenient for positioning the operation through the structural design, thereby achieving the purpose of cutting the blood vessel intima for a plurality of times, reducing the formation of thrombus after the operation, having small incidence of operation complications and achieving the purpose of conveniently and quickly cutting the blood vessel intima by utilizing the design mode of the inner side cutter.

Description

Disposable endangium stripping off device

Technical Field

The invention relates to the technical field of novel blood vessel intimal glass devices, in particular to a disposable blood vessel intimal stripping device.

Background

When plaque is formed on the inner wall of a blood vessel, the blood vessel may become completely narrowed or blocked, thereby seriously affecting the blood circulation of the body. When the blood vessel is 70% or more obstructed, the doctor may recommend performing an endarterectomy to remove the plaque and restore normal blood circulation. Endangiectomy is not without risk, particularly for people with chronic diseases such as diabetes, hypertension or other diseases. But this procedure is necessary for people who severely occlude blood vessels; there are two main roles of endangium exfoliation, the first is to solve the hemodynamic problem, and the second is to solve the problem of vessel occlusion. Clinical trials have shown that the early treatment and complete removal of plaque is the core means for treating vascular occlusion, but prior art methods for treating vascular occlusion include vascular stents, endangium dissectors, and the like. The vascular stent can solve the vascular occlusion, but the thrombosis is easily promoted after the operation, and large-area cerebral infarction occurs; the plaque falls off, and the debris enters the far-end blood vessel to cause disseminated intravascular coagulation and extends to the near end to form stent thrombus, and the occurrence rate of the operation complications is still high.

Disclosure of Invention

The invention aims to provide a disposable endovascular intima-stripping device, which solves the existing problems: methods for treating vascular obstructions include vascular stents, endangium dissectors, and the like. The vascular stent can solve the vascular occlusion, but the thrombosis is easily promoted after the operation, and large-area cerebral infarction occurs; the plaque falls off, and the debris enters the far-end blood vessel to cause disseminated intravascular coagulation and extends to the near end to form stent thrombus, and the occurrence rate of the operation complications is still high.

In order to achieve the purpose, the invention provides the following technical scheme: disposable endovascular stripper, including a guide sword bucket, the built-in guiding tube of bottom fixedly connected with of guide sword bucket, the inside sliding connection of built-in guiding tube has the cutter to carry on the pole, the inboard welding of the one end of cutter carrying on the pole has the cutting knife main part, the rectangle has been seted up to one side of built-in guiding tube and has been shown to cut the completion groove, the one side welding of cutter carrying on the pole has the cutting to accomplish and instructs the piece, the rectangle shows that the completion groove of cutting is the same with the size of cutting completion instruction piece completely, supplementary spacing groove has been seted up to one side of synchronous safety lock piece.

Preferably, the interior of the guide knife barrel is slidably connected with a reciprocating push rod, one end of the reciprocating push rod is welded with a push rod end block, the peripheral side face of the reciprocating push rod is fixedly connected with an auxiliary sliding pad and a synchronous safety buckling and carrying block, the auxiliary sliding pad is positioned at the top end of the synchronous safety buckling and carrying block, the bottom end of the reciprocating push rod is welded with a matching hook body, and one side of the synchronous safety buckling and carrying block is welded with a safety buckle.

Preferably, the top end of the cutter carrying rod is fixedly connected with a mounting ring, and the mounting hook body is connected with the connecting mounting ring in a clamping manner.

Preferably, the safety buckle is made of elastic rubber.

Preferably, the ring-cutting knife main body is of a circular ring shape, and the ring-cutting knife main body is made of stainless steel.

Preferably, a guide limiting through groove is formed in the built-in guide tube, and the guide limiting through groove is in clearance fit with the cutter carrying rod.

Preferably, the material of supplementary slipmat is silica gel, the week side of silica gel is fixed with lubricated movable ring that matches, the material of lubricated movable ring that matches is polytetrafluoroethylene.

Compared with the prior art, the invention has the beneficial effects that:

1. through the structural design, the device is convenient for positioning the operation, thereby achieving the aim of cutting the endangium for many times, reducing the formation of thrombus after the operation and having small incidence of operation complications;

2. the invention utilizes the design mode of the inner side cutter to achieve the purpose of conveniently and quickly cutting the intima of the blood vessel.

Drawings

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

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a partial structural schematic view of an outer rod structure according to the present invention;

FIG. 3 is a partial schematic view of the structure of the cutting tool of the present invention;

FIG. 4 is a partial schematic view of the putter structure of the present invention;

FIG. 5 is a partial schematic view of the knife barrel structure of the present invention;

FIG. 6 is a schematic view of a partial structure of the safety buckle structure of the present invention;

FIG. 7 is a partial cross-sectional view of the present invention;

in the figure: 1. a guide tube is arranged in the device; 2. a guide knife bucket; 3. a synchronous safety buckling and carrying block; 4. a push rod end block; 5. a tool carrying bar; 6. a cutting completion indication block; 7. the rectangle shows that the groove is cut; 8. a ring cutter body; 9. an auxiliary slide pad; 10. a reciprocating push rod; 11. assembling a hook body; 12. an auxiliary limit groove; 13. and (6) safety buckling.

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.

Referring to fig. 1-7, the disposable endovascular dissection device comprises a guide knife barrel 2, wherein the bottom end of the guide knife barrel 2 is fixedly connected with an internally installed guide tube 1, the inside of the internally installed guide tube 1 is slidably connected with a knife carrying rod 5, the inner side of one end of the knife carrying rod 5 is welded with a circular cutting knife main body 8, one side of the internally installed guide tube 1 is provided with a rectangular cutting completion displaying groove 7, one side of the knife carrying rod 5 is welded with a cutting completion indicating block 6, the rectangular cutting completion indicating groove 7 and the cutting completion indicating block 6 have the same size, so that when the rectangular cutting completion indicating groove 7 and the cutting completion indicating block 6 are displayed correspondingly, a doctor is prompted to complete cutting, and one side of a synchronous safety buckle block 3 is provided with an auxiliary limiting groove 12;

a reciprocating push rod 10 is slidably connected inside the guide knife barrel 2, a push rod end block 4 is welded at one end of the reciprocating push rod 10, an auxiliary sliding pad 9 and a synchronous safety buckling and carrying block 3 are fixedly connected to the peripheral side face of the reciprocating push rod 10, the auxiliary sliding pad 9 is located at the top end of the synchronous safety buckling and carrying block 3, an assembling hook body 11 is welded at the bottom end of the reciprocating push rod 10, and a safety buckle 13 is welded at one side of the synchronous safety buckling and carrying block 3;

the top end of the cutter carrying rod 5 is fixedly connected with a matching ring, the matching hook body 11 is connected with the matching ring in a clamping manner, a guide limiting through groove is formed in the built-in guide tube 1 and is in clearance fit with the cutter carrying rod 5, so that the cutter carrying rod 5 can drive the circular cutting knife main body 8 to slide in the built-in guide tube 1 to complete anastomosis adjustment under the derivation of the push rod end block 4;

the safety buckle 13 is made of elastic rubber, so that the safety buckle is convenient to shrink and pop up to form positioning protection;

the ring-shaped cutting knife main body 8 is circular, and the material of the ring-shaped cutting knife main body 8 is stainless steel, so that the intima of the blood vessel can be conveniently cut;

the auxiliary sliding pad 9 is made of silica gel, a lubricating and matching ring is fixed on the peripheral side face of the silica gel, the lubricating and matching ring is made of polytetrafluoroethylene, and the auxiliary reciprocating push rod 10 can conveniently and stably slide inside the synchronous safety buckling and carrying block 3.

The working principle is as follows: in the process of stripping the blood vessel intima, the built-in guide tube 1 and the circular cutter main body 8 are inosculated with the blood vessel intima, when the built-in guide tube 1 and the circular cutter main body 8 reach the appointed focus position, the push rod end block 4 is pulled to drive the cutter carrying rod 5 to slide in the built-in guide tube 1 to complete cutting of the blood vessel intima, the position of the cutting completion indication block 6 on the cutter carrying rod 5 should correspond to the rectangular cutting completion groove 7 after the cutting of the blood vessel intima is completed, so that when the cutting completion indication block 6 and the rectangular cutting completion groove 7 correspond to each other, the cutting completion can be observed from the external observation to prompt a doctor that the cutting is completed, if the cutting of the other blood vessel intima is completed or the blood vessel intima is not completely cut, the push rod end block 4 is pushed to enable the synchronous safety buckle block 3 to follow the displacement to deduce the safety buckle 13 to be embedded into the auxiliary limit groove 12, and at the moment, the adjustment can be carried out by using the blood vessel intima stripping device once, thereby being conveniently prepared for cutting again.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Disposable endovascular stripper, its characterized in that: including a guide sword bucket (2), the built-in guiding tube (1) of bottom fixedly connected with of guide sword bucket (2), the inside sliding connection of built-in guiding tube (1) has cutter to carry on pole (5), the inboard welding of the one end of cutter carrying on pole (5) has ring-cutting knife main part (8), rectangle demonstration cutting completion groove (7) has been seted up to one side of built-in guiding tube (1), the welding of one side of cutter carrying on pole (5) has cutting completion instruction piece (6), the rectangle shows that cutting completion groove (7) is the same with the size of cutting completion instruction piece (6) completely, supplementary spacing groove (12) have been seted up to one side of guide sword bucket (2).

2. The single-use endovascularisation dissection device of claim 1, wherein: the inner sliding connection of the guide knife barrel (2) is provided with a reciprocating push rod (10), one end of the reciprocating push rod (10) is welded with a push rod end block (4), the peripheral side face of the reciprocating push rod (10) is fixedly connected with an auxiliary sliding pad (9) and a synchronous safety buckling block (3), the auxiliary sliding pad (9) is located at the top end of the synchronous safety buckling block (3), the bottom end of the reciprocating push rod (10) is welded with a matching hook body (11), and one side of the synchronous safety buckling block (3) is welded with a safety buckle (13).

3. The single-use endovascularisation dissection device of claim 2, wherein: the top end of the cutter carrying rod (5) is fixedly connected with a mounting ring, and the mounting hook body (11) is connected with the connecting mounting ring in a clamping manner.

4. The single-use endovascularisation dissection device of claim 2, wherein: the safety buckle (13) is made of elastic rubber.

5. The single-use endovascularisation dissection device of claim 1, wherein: the ring-shaped cutting knife is characterized in that the ring-shaped cutting knife main body (8) is of a circular ring shape, and the ring-shaped cutting knife main body (8) is made of stainless steel.

6. The single-use endovascularisation dissection device of claim 1, wherein: the inside of built-in guiding tube (1) is provided with a guide limiting through groove, and the guide limiting through groove is in clearance fit with the cutter carrying rod (5).

7. The single-use endovascularisation dissection device of claim 2, wherein: the material of supplementary slipmat (9) is silica gel, the week side of silica gel is fixed with lubricated movable ring that matches, the material of lubricated movable ring that matches is polytetrafluoroethylene.