CN116020041A

CN116020041A - Guide wire threading device and guide wire threading method

Info

Publication number: CN116020041A
Application number: CN202211569976.1A
Authority: CN
Inventors: 徐东岳; 马立金
Original assignee: Beijing Guanqiao Medical Technology Co ltd
Current assignee: Beijing Guanqiao Medical Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-28

Abstract

The application relates to the technical field of medical instruments, in particular to a guide wire threading device and a guide wire threading method. The invention provides a guide wire threading device, which comprises: the butt joint clamp comprises two butt joint blocks which are oppositely arranged and an opening and closing mechanism which is connected between the butt joint blocks, the guide wire is movably clamped between the butt joint blocks, and a through cavity channel which can be used for the guide wire to be movably pushed and pulled is formed in the butt joint clamp. The guide wire can be quickly inserted into the hemostatic valve or the catheter connector and other instruments, and the threading device can be quickly removed after the operation is finished, so that the operation time is greatly reduced.

Description

Guide wire threading device and guide wire threading method

Technical Field

The application relates to the technical field of medical instruments, in particular to a guide wire threading device and a guide wire threading method.

Background

The correct use of the guide wire is the key to success of coronary intervention treatment, the more complicated the lesion is, the higher the use requirement of the guide wire is, the classification and the characteristics of the guide wire are mastered, and the precondition of the correct use of the guide wire is realized. The head end shaping according to local conditions is an important element for reasonably using the guide wire, and is beneficial to improving the lesion passing rate of the guide wire.

After the guide wire head end is shaped, the guide wire is difficult to enter a corresponding instrument, for example, when the guide wire penetrates into a hemostatic valve, the diameter of the hemostatic valve end is 3-4mm, and the guide wire head end is bent and soft and is difficult to insert.

Many existing threading devices are in the form of a plain-nose needle, and are similar to the structure of a syringe needle, a guide wire needs to be tightly pinched at a tip end to be inserted from a large-caliber section of the plain-nose needle, and the insertion difficulty is almost the same as that of a hemostasis valve directly. After the hemostatic valve is inserted by the method, the penetrating guide instrument in the form of a flat needle also needs to be withdrawn from the tail end of the guide wire along the whole guide wire, so that the distance is longer, and the operation time is seriously prolonged.

The invention is particularly provided based on the technical problem of the guide wire in the threading process.

Disclosure of Invention

The purpose of the application is to provide a guide wire threading device and a guide wire threading method, so that a guide wire can be quickly inserted into apparatuses such as a hemostatic valve or a catheter connector, and the threading device can be quickly removed after the operation is completed, and the operation time is greatly reduced.

To achieve the above object, in a first aspect, the present invention provides a guide wire threading device comprising: the butt joint clamp comprises two butt joint blocks which are oppositely arranged and an opening and closing mechanism which is connected between the butt joint blocks, the guide wire is movably clamped between the butt joint blocks, and a through cavity channel which can be used for the guide wire to be movably pushed and pulled is formed in the butt joint clamp.

In an alternative embodiment, the butt joint block comprises a butt joint surface and a hand-held surface, the butt joint surfaces are respectively provided with a sinking groove, and the sinking grooves comprise arc-shaped grooves and penetrate straight through in the length direction of the butt joint block.

In an optional embodiment, the opening and closing mechanism comprises an elastic hinge, the two butt joint blocks can be connected in an opening and closing mode through the elastic hinge, and after the butt joint blocks are closed, the arc-shaped grooves are spliced to form the straight through cavity channel.

In an alternative embodiment, at least a portion of the hand-held surface is provided with a grip tab, and the grip tab is provided with an anti-slip rubber pad.

In an alternative embodiment, the hinge includes an elastic card, the clamping projection and the elastic hinge are respectively disposed on two sides of the butt joint block, and at least a part of the elastic hinge is opposite to the clamping projection in position.

In an alternative embodiment, the butt joint blocks respectively comprise a shaping section positioned at the end part, and after the butt joint blocks are closed, the shaping sections are spliced to form a straight pipe section for regulating the guide wire.

In an alternative embodiment, the end portion of the butt joint block is connected with an anti-slip rubber block, a groove for the guide wire to pass through is formed in the inner side wall of the anti-slip rubber block, the sinking groove is directly connected with the groove, lines are arranged on the groove surface of the groove, and the lines extend along the threading direction of the guide wire.

In an alternative embodiment, the abutment, the clamping projection and the shaping segment are of unitary construction.

In an optional embodiment, the extension pipe is further provided with an extension pipe which is arranged in a split manner with the butt joint clamp, the extension pipe comprises a thick pipe section and a thin pipe section, the inner diameter of the thick pipe section is not smaller than the outer diameter of the straight pipe section, and the outer diameter of the thin pipe section is the same as the outer diameter of the straight pipe section.

In a second aspect, the present invention provides a method for threading a guide wire, according to any of the preceding embodiments, comprising the steps of:

clamping the non-shaped part of the guide wire in the straight-through cavity channel of the butt joint block;

pulling the guide wire backwards to ensure that the shaping part of the guide wire is regulated into a straight line section in the butt clamp;

after the head end of the guide wire is exposed out of the butt clamp, stopping pulling;

inserting the butt clamp into the hemostatic valve or catheter adapter, and pushing the guide wire forward;

after the guide wire is introduced, the abutment clip is opened and removed from the guide wire.

Through the butt joint clamp that comprises two butt joint pieces and hinge, can make things convenient for opening and shutting of butt joint piece under the hinge effect, the centre gripping to the seal wire is convenient, can make the butt joint clamp direct grip on the seal wire to avoided the threading of seal wire head end on the conduction device, reduced operating time when inserting the degree of difficulty.

The guide wire is movably clamped between the butt joint blocks, and the straight-through cavity is formed in the butt joint clamp, so that the guide wire can be movably pushed and pulled in the straight-through cavity, and the push-pull process is regulated, so that the shaping part of the guide wire is converted into a straight line section in the straight-through cavity, and the insertion of the guide wire in a hemostatic valve or a catheter joint and other instruments is facilitated.

The butt joint piece can be quickly opened and closed under the action of the opening and closing mechanism, so that the guide wire can be enabled to be free from the clamping of the butt joint clamp when the non-shaped part of the guide wire is clamped conveniently, the quick removal of the threading device on the guide wire is realized, and the operation efficiency is effectively improved.

Additional features and advantages of the present application will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a docking clip according to the present application;

FIG. 2 is a schematic side view of the docking clip of the present application in a closed configuration;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic side view of the docking clip of the present application in an open state;

FIG. 5 is a schematic view of the installation structure of the anti-skid rubber block;

FIG. 6 is a schematic view of the internal structure of the anti-skid rubber block;

FIG. 7 is a schematic view of the structure of an extension tube of the present application;

FIG. 8 is a schematic illustration of the mating relationship of an extension tube to a docking clip;

FIG. 9 is a schematic view of the docking clip after clamping the guidewire;

FIG. 10 is a schematic view of the structure of the wire when the wire is drawn;

FIG. 11 is a schematic view of the structure of the guide wire after gauge shaping;

fig. 12 is a schematic view of the structure when pushing the guide wire.

Icon:

1-butt-joint clamps; 11-butt joint blocks; 12-elastic hinges; 13-a sink; 14-clamping the bump; 15-an anti-slip rubber pad; 16-shaping sections;

2-an anti-skid rubber block; 21-a semicircular cavity; 22-a through interface; 23-guiding lines;

3-extending a tube; 31-a thick pipe section; 32-thin tube sections;

4-guide wire.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the embodiments described are some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The guide wire threading device is mainly used for threading guide wires into corresponding instruments such as a hemostatic valve or a catheter connector, and specifically solves the problem that the shaped guide wire head end is difficult to smoothly penetrate into the instruments.

Through the unshaped part of centre gripping seal wire, can make seal wire and wear to lead the device to cooperate fast, avoid current operation that still needs to peg graft the seal wire end on wearing to lead the device, reduced the operation degree of difficulty.

The guide wire can be accommodated in the straight channel of the guide wire threading device in a push-pull manner, and the shaping part of the guide wire can be regulated in the drawing process of the guide wire, so that the soft head end of the guide wire is converted into a straight line section, and the follow-up insertion pushing in the instrument is facilitated.

Referring to fig. 1-4, the guide wire threading device in the invention has a main structure comprising a butt joint clamp 1, wherein the butt joint clamp 1 specifically comprises two butt joint blocks 11 which are oppositely arranged, an opening and closing mechanism is connected between the two butt joint blocks 11, so that the two connecting blocks can be opened and closed for connection, and the rapid clamping of the non-shaped part of the guide wire 4 is facilitated.

The guide wire 4 can be movably clamped between the butt joint blocks 11, the telescopic movement of the guide wire 4 on the butt joint clamp 1 can be facilitated, meanwhile, the straight-through cavity is formed in the butt joint clamp 1, on one hand, the straight-through cavity is used for accommodating the guide wire 4, so that the guide wire 4 integrally penetrates through the butt joint clamp 1, on the other hand, the shaping part of the guide wire 4 exposed to the butt joint clamp 1 can be regulated in the drawing process, so that the soft and bent shaping part is regulated to be shaped into a straight line section when the guide wire 4 is drawn through the straight-through cavity, and the follow-up guide wire 4 can be conveniently pushed into an instrument.

Further, after the head end of the guide wire 4 completely enters the instrument, the butt joint block 11 is opened through the opening and closing mechanism, so that the guide wire 4 can be directly free from the clamping of the butt joint clamp 1, compared with the prior threading guide instrument which is threaded on the guide wire 4, the guide wire 4 can be directly separated from the butt joint clamp 1, the ineffective operation that the threading guide instrument is along the whole guide wire 4 and is removed from the tail end of the guide wire 4 is reduced, and the operation efficiency is greatly improved.

In one specific embodiment, the butt joint blocks 11 include a butt joint surface and a hand-held surface, the butt joint surfaces of the two butt joint blocks 11 are respectively provided with a sink 13, and further, the sink 13 includes an arc-shaped groove and is straight penetrating in the length direction of the butt joint block 11.

Through this kind of setting mode, can make seal wire 4 holding in the arc recess to butt joint piece 11 can provide certain activity space for seal wire 4 after the butt joint, through wholly running through the arc recess on the length direction of butt joint piece 11, can make seal wire 4 wholly run through on butt joint piece 11, be convenient for seal wire 4 get into and follow stretching out on the other end at the one end of butt joint piece 11, reliably carry out the push-pull operation.

The opening and closing mechanism in this embodiment includes an elastic hinge 12, two opposite butt blocks 11 are connected in an openable manner through the elastic hinge 12, the elastic hinge 12 specifically includes an elastic card having a V-shape with a certain length, and the two butt blocks 11 are respectively connected to the elastic card. The rapid opening and closing of the butt joint block 11 can be realized under the cooperation of elastic external tension and handheld clamping force, so that the non-shaped part of the guide wire 4 is clamped, and the guide wire 4 is separated from the butt joint clamp 1.

Further, after the butt joint blocks 11 are in butt joint and closed, the arc grooves can be spliced to form a straight-through channel on the butt joint clamp 1, in the using process, the guide wire 4 is accommodated in the arc groove of one of the butt joint blocks 11, and then the guide wire 4 can be quickly connected with the straight-through channel formed by splicing the arc grooves in a penetrating manner through the splicing of the two butt joint blocks 11, so that the inserting operation with higher difficulty is reduced.

According to the invention, through the constitution of the through cavity, the non-shaped part of the guide wire 4, namely the straight line section at the rear end of the guide wire 4, can be rapidly clamped on the butt clamp 1, and the shaping section with higher flexibility at the head end part of the guide wire 4 is regulated through the movable drawing of the guide wire 4, so that the shaping section is shaped into the straight line section through the binding function of the through cavity.

The butt joint closing of the butt joint blocks 11 is mainly performed in a handheld clamping mode, specifically, at least one part of the handheld surface is provided with a clamping convex block 14, and an anti-slip rubber pad 15 is arranged on the clamping convex block 14, so that an index finger and a thumb can respectively press the clamping convex block 14, and the closing between the two butt joint blocks 11 is realized under the action of external force. The anti-slip rubber pad 15 arranged on the clamping convex block 14 can ensure the stability of finger clamping and enhance the convenience of clamping operation.

Meanwhile, the clamping lug 14 can play a certain role in indicating, so that a user can be guided to clamp the clamping position in the operation process, and the anti-skid rubber pad 15 can effectively prevent the butt clamp 1 from falling off on fingers, so that the butt clamp 1 is ensured to be used stably and reliably.

In this embodiment, the clamping bump 14 and the elastic hinge 12 are respectively disposed at two sides of the butt joint block 11, specifically, the clamping bump 14 is circular, the elastic hinge 12 includes an elastic clip with a length greater than the diameter of the clamping bump 14, and at least a portion of the elastic hinge 12 is opposite to the clamping bump 14. The clamping external force acting on the clamping projection 14 can directly act on the elastic hinge 12, so that the reliable conversion between the two butt joint blocks 11 in the opening and closing state can be maintained.

In the use, the threading device can be directly inserted into a hemostatic valve or a catheter connector, the head end of the guide wire 4 after regulation shaping is stretched into an instrument, in order to facilitate the insertion of the threading device on the instrument, the two butt joint blocks 11 respectively comprise shaping sections 16 positioned at the end parts, specifically, the shaping sections 16 are arranged at the side parts matched with the head end of the guide wire 4 and comprise semicircular pipe sections, and the arc-shaped grooves are arranged on the side walls of the semicircular pipe sections. After the butt joint 11 is closed, the shaping segments 16 are spliced to form straight segments for the guide wire 4. When the guide wire 4 is drawn, the shaping part firstly passes through the shaping section 16, and the guide wire is shaped into a straight line section and then forwards and smoothly extends, so that the reliability of the shaping is ensured.

In order to reduce random shaking of the guide wire 4 in the through cavity, in combination with fig. 5-6, an anti-slip rubber block 2 is connected to the end of the butt joint block 11, a groove for the guide wire 4 to movably pass through is formed in the inner side wall of the anti-slip rubber block 2, and the guide wire 4 can limit random shaking of the guide wire 4 in the cavity through friction force formed by contact with the anti-slip rubber block 2.

The anti-skid rubber block 2 is sleeved outside the end part of the butt joint block 11 and is arranged at the other end of the opposite shaping section 16. Specifically, the anti-skid rubber block 2 comprises a semicircular cavity 21 which is matched with the shape of the butt joint block 11, and the end part of the butt joint block 11 is embedded and installed in the semicircular cavity 21 of the anti-skid rubber block 2, so that the anti-skid rubber block 2 can be reliably installed on the butt joint clamp 1. The lateral part of the anti-skid rubber block 2 is provided with a penetration opening 22 for the guide wire 4 to pass through, and a groove is arranged on the inner side wall of the penetration opening 22.

Further, the sinking groove 13 in the form of an arc-shaped groove on the butt joint block 11 is directly communicated with the groove on the anti-skid rubber block 2, so that the guide wire 4 can form a stable straight line segment after passing through the butt joint block 11. The groove surface of the groove is provided with the guide grain 23, the guide grain 23 extends along the threading direction of the guide wire 4, the anti-slip rubber block 2 and the form of the guide grain 23 on the groove surface establish the balance between preventing the guide wire 4 from shaking randomly and ensuring that the guide wire 4 can be pushed and pulled in the straight-through cavity channel, and the reliable clamping of the butt joint clamp 1 on the guide wire 4 is ensured on the premise that the guide wire 4 can be pushed and pulled normally.

In this embodiment, the butt-joint block 11, the clamping bump 14 and the shaping section 16 are of an integral structure, preferably, the butt-joint block 11, the clamping bump 14 and the shaping section 16 are arranged in a mirror symmetry manner with the elastic hinge 12 as a center, so that an openable clamping tool can be formed for the guide wire 4, and the accuracy of clamping the guide wire 4 is effectively ensured.

Referring to fig. 7-8, during normal use, the guide wire 4 after gauge shaping is advanced by inserting the straight tube segment included in the shaping segment 16 into the instrument. In order to avoid that the length of the guide wire threading device does not meet the specific splicing requirement, the guide wire threading device in the invention also provides an extension tube 3 which is arranged separately from the butt clamp 1.

Specifically, the extension tube 3 has a stepped diameter including a thick tube section 31 and a thin tube section 32, and preferably, the thick tube section 31 has an inner diameter not smaller than an outer diameter of a straight tube section for shaping the guide wire 4, so that the straight tube section is connected to the thick tube section 31 in a pluggable manner, and the thin tube section 32 has an outer diameter identical to the outer diameter of the straight tube section. Through this kind of setting method, made things convenient for the transmission of seal wire 4 in extension pipe 3, when the extension is passed, can make the straight tube section grafting of butt joint clamp 1 in thick tube section 31 to peg graft the tubule section 32 of extension pipe 3 in the apparatus that needs seal wire 4 to introduce, reach the concrete demand of seal wire 4 extension transmission.

Preferably, the length of the thick pipe section 31 is smaller than that of the straight pipe section, so that the butt joint clamp 1 is fully inserted into the extension pipe 3, on one hand, the extension pipe 3 and the butt joint clamp 1 can form a close fit relation in a bottom-to-bottom manner, and on the other hand, the guide wire 4 can directly enter the straight through cavity of the thin pipe section 32 after extending out of the straight pipe section, and interference between the head end of the guide wire 4 and the joint part of the thick pipe section 31 and the thin pipe section 32 in the transmission process is prevented, so that the reliability of extension transmission is affected.

The guide wire threading device can greatly improve threading working conditions of the guide wire 4 in the instrument, reduces the dismounting difficulty of the guide wire 4 on the threading device through the butt clamp 1 in an opening and closing mode, and effectively improves the operation efficiency.

Referring to fig. 9-12, the invention also provides a guide wire 4 threading method performed by the guide wire threading device, which mainly comprises the following steps:

firstly, placing an unshaped part of a guide wire 4 in an arc-shaped groove on a butt joint block 11, clamping the butt joint block 11 by fingers to close the butt joint block, and movably clamping the guide wire 4 in a straight-through cavity channel;

then, the guide wire 4 is pulled back, the shaping part of the guide wire 4 is regulated and shaped into a straight line section on the butt joint clamp 1, the head end of the guide wire 4 is exposed out of the shaping section 16 and is approximately aligned with the head end of the shaping section 16, and pulling is stopped;

inserting the shaping section 16 of the butt clamp 1 into a hemostatic valve, a catheter connector or other instruments, and pushing the guide wire 4 forwards;

after the guide wire 4 is introduced into the instrument, the docking clip 1 is opened and the docking clip 1 is removed from the guide wire 4.

It should be noted that when the extension tube 3 is used, the threading device is pulled out from the extension tube 3 and removed after the guide wire 4 is threaded into the instrument, and then the extension tube 3 is withdrawn from the tail end of the guide wire 4, so as to complete the threading operation of the guide wire 4.

By the guide wire 4 threading method, the operation difficulty of threading the guide wire 4 in the instrument can be greatly reduced, the operation time is greatly shortened, and the operation efficiency is improved.

It should be noted that, without conflict, features in the embodiments of the present application may be combined with each other.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A guidewire threading device comprising: the butt joint clamp comprises two butt joint blocks which are oppositely arranged and an opening and closing mechanism which is connected between the butt joint blocks, the guide wire is movably clamped between the butt joint blocks, and a through cavity channel which can be used for the guide wire to be movably pushed and pulled is formed in the butt joint clamp.

2. The guide wire threading device according to claim 1, wherein the butt joint block comprises a butt joint surface and a hand-held surface, the butt joint surfaces are respectively provided with a sinking groove, and the sinking grooves comprise arc-shaped grooves and penetrate straight through the butt joint block in the length direction.

3. The guide wire threading device according to claim 2, wherein the opening and closing mechanism comprises an elastic hinge, two butt joint blocks are connected in an openable manner through the elastic hinge, and after the butt joint blocks are closed, the arc-shaped grooves are spliced to form the through cavity channel.

4. The guidewire threading device of claim 3 wherein at least a portion of the hand-held surface is provided with a grip tab having an anti-slip rubber pad disposed thereon.

5. The guide wire threading device of claim 4 wherein the clamping bump and the elastic hinge are disposed on opposite sides of the abutment, respectively, and at least a portion of the elastic hinge is positioned opposite the clamping bump.

6. The guidewire threading device of claim 4 wherein the abutment blocks each include a shaping segment at an end, the shaping segments being spliced to form a straight tube segment for constraining the guidewire after the abutment blocks are closed.

7. The guide wire threading device according to claim 2, wherein the end part of the butt joint block is connected with an anti-slip rubber block, a groove for the guide wire to pass through is formed in the inner side wall of the anti-slip rubber block, the sinking groove is directly connected with the groove, lines are arranged on the groove surface of the groove, and the lines extend along the threading direction of the guide wire.

8. The guidewire threading device of claim 6 wherein the abutment, the clamping tab and the shaping section are of unitary construction.

9. The guidewire threading device of claim 6 further comprising an extension tube separate from the butt clamp, the extension tube comprising a thick tube section and a thin tube section, the thick tube section having an inner diameter not smaller than an outer diameter of the straight tube section, the thin tube section having an outer diameter the same as the outer diameter of the straight tube section.

10. A method of threading a guide wire according to any one of claims 1 to 9, comprising the steps of: