CN219355017U - Catheter fixing mechanism and vascular intervention device - Google Patents

Abstract

The utility model provides a catheter fixing mechanism and vascular interventional equipment, which belong to the technical field of medical instruments. When the catheter needs to be replaced, the catheter fixing seat can be moved upwards relative to the base to enable the catheter fixing seat to be lifted to a certain height, and then the catheter fixing seat is rotated to one side far away from the guide wire fixing seat to enable the catheter fixing seat to be inclined to a certain angle, so that the interference of the guide wire fixing seat can be avoided, the catheter can be conveniently pulled out of or penetrated into the catheter fixing seat, and therefore replacement of the catheter can be completed without the need of disassembling the catheter fixing seat, the catheter transmission mechanism and other structures, and the catheter replacement is more convenient and faster.

Description

Catheter fixing mechanism and vascular intervention device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a catheter fixing mechanism and vascular intervention equipment.

Background

With the development of technology, the operation burden of medical staff can be greatly reduced by using vascular interventional equipment to perform operation, so that the medical staff is more focused on the decision of the operation, the stability of the machine replaces the instability of the traditional mode, and the vascular interventional equipment is increasingly applied to the treatment of cardiovascular diseases.

In the vascular interventional operation process, the catheter is required to be frequently replaced, when the existing vascular interventional devices are used for performing the operation, the catheter is generally arranged on the catheter fixing seat in a penetrating mode, one side of the catheter fixing seat is also provided with the guide wire fixing seat, a gap between the guide wire fixing seat and the catheter fixing seat is required to be small for facilitating guide wire pushing, when the catheter is replaced, the catheter fixing seat and structures such as a catheter transmission mechanism arranged on the catheter fixing seat are required to be detached, more time and effort are required, and the catheter fixing seat is often required to be matched with other mechanisms (such as the guide wire transmission mechanism) and the like, so that the vascular interventional operation device is very inconvenient and is unfavorable for rapid deployment of the operation.

Disclosure of Invention

The utility model solves the technical problem of how to make the replacement of the catheter of the vascular interventional device more convenient.

In order to solve the above problems, the present utility model provides a catheter fixing mechanism, which includes a base, a catheter fixing base and a sliding shaft, wherein the catheter fixing base is rotatably connected with the base through the sliding shaft, the catheter fixing base is used for penetrating a catheter, and the sliding shaft is used for sliding along a height direction relative to the base or the catheter fixing base.

Optionally, the base includes first pedestal and first hole structure, first hole structure sets up on the first pedestal, the pipe fixing base includes second pedestal and second hole structure, the second pedestal is used for wearing to establish the pipe, the second hole structure sets up on the second pedestal, the sliding shaft with second hole structure and first hole structure swing joint.

Optionally, at least one of the first hole structure and the second hole structure is a kidney-shaped through hole, and the long edge of the kidney-shaped through hole is arranged along the height direction.

Optionally, the base further includes a mounting groove structure, in the length direction of the base, the mounting groove structure is disposed on the first base and located at one side of the first hole structure, the catheter fixing base further includes a boss structure, the boss structure is disposed on the second base and matched with the mounting groove structure, and the mounting groove structure is used for accommodating the boss structure.

Optionally, the catheter fixing mechanism further comprises a locking member, wherein the locking member is arranged on the catheter fixing seat and is used for being detachably connected with the base.

Optionally, the base further includes a clamping groove structure, the clamping groove structure is arranged on the first base body, the catheter fixing seat further includes an ear plate, the ear plate is arranged on the second base body, the locking piece is of a fastening structure, and the fastening structure is rotationally connected with the ear plate and used for being fastened in the clamping groove structure.

Optionally, the base further includes a hollow structure, where the hollow structure is disposed on the first base and is located on a side of the clamping groove structure, which is close to the fastening structure.

Optionally, the catheter fixing seat further includes a through hole structure, and in a thickness direction of the catheter fixing seat, the through hole structure penetrates through the second seat body and is used for penetrating through the catheter.

Compared with the prior art, the utility model has the following beneficial effects:

through adopting the sliding shaft to rotate catheter fixing base and base to be connected, the sliding shaft is used for sliding along the direction of height for base or catheter fixing base, and the pipe wears to establish on the catheter fixing base, when needs change the pipe, can upwards remove the catheter fixing base for the base, makes the catheter fixing base lift a take the altitude, then rotates the catheter fixing base to the one side of keeping away from the wire fixing base and makes its certain angle of slope again to can avoid the interference of wire fixing base, conveniently take out the pipe from the catheter fixing base or penetrate in the catheter fixing base, from this, need not structures such as dismouting catheter fixing base and catheter drive mechanism can accomplish the change of pipe, make change pipe convenient and fast more.

Another object of the present utility model is to provide a vascular access device to solve the problem of how to make the replacement of the catheter of the vascular access device more convenient.

In order to solve the problems, the technical scheme of the utility model is realized as follows:

a vascular interventional device for pushing a catheter and a guidewire, the guidewire portion being threaded in the catheter, comprising a catheter fixation mechanism as described above.

Optionally, the vascular interventional device further comprises a guide wire fixing seat, and the guide wire fixing seat is arranged on one side of the guide wire fixing seat of the guide wire fixing mechanism and used for penetrating the guide wire in the length direction of the guide wire fixing mechanism.

The vascular intervention device has the same advantages as the catheter-securing mechanism over the prior art and will not be described in detail here.

Drawings

FIG. 1 is a schematic structural view of a portion of a vascular interventional device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of a vascular interventional device according to another embodiment of the present utility model;

FIG. 3 is a schematic view of a base structure according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a catheter holder according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a catheter fixing base and a sliding shaft according to an embodiment of the utility model.

Reference numerals illustrate:

1. a base; 11. a first base; 12. a first aperture structure; 13. a mounting groove structure; 14. a clamping groove structure; 15. a hollow structure; 2. a catheter fixing seat; 21. a second seat body; 22. a second aperture structure; 23. a boss structure; 24. ear plates; 25. a via structure; 3. a sliding shaft; 4. a locking member; 10. a guide wire fixing seat; 100. a conduit; 200. a guide wire.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be understood that the forward direction of "X" in the drawings represents the left direction, and correspondingly, the reverse direction of "X" represents the right direction; the forward direction of "Y" represents the forward direction, and correspondingly, the reverse direction of "Y" represents the rearward direction; the forward direction of "Z" represents above, and correspondingly, the reverse direction of "Z" represents below, and the azimuth or positional relationship indicated by the terms "X", "Y", "Z", etc. are based on the azimuth or positional relationship shown in the drawings of the specification, are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the utility model.

The terms "first" and "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

To solve the above-mentioned problems, an embodiment of the present utility model provides a catheter fixing mechanism, which includes a base 1, a catheter fixing base 2 and a sliding shaft 3, wherein the catheter fixing base 2 is rotatably connected with the base 1 through the sliding shaft 3, the catheter fixing base 2 is used for penetrating a catheter 100, and the sliding shaft 3 is used for sliding along a height direction relative to the base 1 or the catheter fixing base 2.

As shown in fig. 1, 2 and 5, the catheter fixing seat 2 is disposed on the base 1, a first bevel gear rotating around the height direction is disposed on the base 1, a second bevel gear rotating around the length direction is disposed on the catheter fixing seat 2, the catheter 100 is disposed on the catheter fixing seat 2 and penetrates from the center of the second bevel gear, the first bevel gear is meshed with the second bevel gear, the first bevel gear can drive the second bevel gear to drive the catheter 100 to rotate, a wire fixing seat 10 is disposed on one side, away from the second bevel gear, of the catheter fixing seat 2, the wire 200 is threaded on the wire fixing seat 10, in order to avoid the wire 200 from being bent to cause non-pushing, the distance between the wire fixing seat 10 and the catheter fixing seat 2 is small, and when the catheter 100 needs to be replaced, the catheter 100 is difficult to be drawn out from the catheter fixing seat 2 or penetrated into the catheter fixing seat 2 due to interference of the wire fixing seat 10.

In this embodiment, the bottom of the catheter fixing seat 2 is rotatably connected with the base 1 through the sliding shaft 3, and the sliding shaft 3 can slide along the height direction relative to the base 1 or the catheter fixing seat 2, wherein the sliding shaft 3 is a structure that can rotate around the axial direction and also can slide along a certain direction relative to the base 1 or the catheter fixing seat 2, and the catheter fixing seat 2 can be used for penetrating the catheter 100 by providing a clip, a catheter sleeve, or other structures on a portion far from the connection with the base 1, which is not limited herein.

It should be noted that the sliding shaft 3 is used to slide in the height direction relative to the base 1, typically the base 1 is fixed, the sliding shaft 3 is provided on the catheter fixing base 2 and moves upward with the catheter fixing base 2, and the sliding shaft 3 is used to slide in the height direction relative to the catheter fixing base 2, typically the sliding shaft 3 is provided on the base 1 and remains stationary in the home position or rotates around the axis in the home position, and the catheter fixing base 2 moves upward relative to the sliding shaft 3.

For example, when the sliding shaft 3 is a round pin, a square pin with two ends having a cylindrical structure may be used as the sliding shaft 3, the sliding shaft may be fixed to the catheter fixing base 2 by welding, riveting, bolting, or the like, and a waist-shaped hole with a long edge in the height direction may be provided in the base 1, the round pin may be provided in the waist-shaped hole to thereby enable the catheter fixing base 2 to move in the height direction relative to the base 1 and rotate axially about the sliding shaft 3, or the round pin may be fixed to the base 1 by welding, riveting, bolting, or the like, and a waist-shaped hole with a long edge in the height direction may be provided in the catheter fixing base 2, and the round pin may be provided in the waist-shaped hole to thereby enable the catheter fixing base 2 to move in the height direction relative to the base 1 and rotate axially about the sliding shaft 3.

When the sliding shaft 3 adopts the square pin shafts with two ends of cylindrical structures, a circular shaft hole can be formed in the base 1, a strip-shaped hole with a long edge in the height direction is formed in the catheter fixing seat 2, the cylindrical structure of the square pin shaft is arranged in the circular shaft hole, and the main body part of the square pin shaft is arranged in the strip-shaped hole, so that the movement of the catheter fixing seat 2 in the height direction relative to the base 1 and the axial rotation around the sliding shaft 3 are realized, or a waist-shaped hole with the long edge in the height direction is formed in the base 1, a square hole matched with the main body part of the square pin shaft is formed in the catheter fixing seat 2, and the main body part of the square pin shaft is arranged in the square hole through the cylindrical structure of the square pin shaft, so that the movement of the catheter fixing seat 2 in the height direction relative to the base 1 and the axial rotation around the sliding shaft 3 are realized.

As shown in fig. 1 and 2, the height direction refers to the Z-axis direction.

Like this, through adopting sliding shaft 3 to rotate catheter fixing base 2 and base 1 to be connected, sliding shaft 3 is used for sliding along the direction of height for base 1 or catheter fixing base 2, catheter 100 is fixed on catheter fixing base 2, when needs change catheter 100, can upwards remove catheter fixing base 2 for base 1, make catheter fixing base 2 lift a take the altitude, then rotate catheter fixing base 2 to the one side that keeps away from wire fixing base 10 and make its certain angle of slope again, thereby can avoid wire fixing base 10's interference, conveniently take catheter 100 out from catheter fixing base 2 or put into catheter fixing base 2, from this, need not to dismantle catheter fixing base 2 and catheter 100 drive mechanism's isotructure can accomplish the change of catheter 100, make change catheter 100 convenient and fast more.

Optionally, the base 1 includes a first base 11 and a first hole structure 12, the first hole structure 12 is disposed on the first base 11, the catheter fixing base 2 includes a second base 21 and a second hole structure 22, the second base 21 is used for penetrating the catheter 100, the second hole structure 22 is disposed on the second base 21, and the sliding shaft 3 is movably connected with the second hole structure 22 and the first hole structure 12.

As shown in fig. 3 and 4, in this embodiment, the first base 11 is U-shaped, and includes a front mounting portion for mounting the transmission mechanism of the catheter 100, and two side portions of the mounting portion extend backward to form left and right rear side plates, and the left and right rear side plates and the mounting portion form a U-shaped space together, and the first hole structure 12 is disposed on the side plates; the second seat body 21 is square integrally, including the upper portion is used for wearing to establish the main part structure and the lower part of pipe 100 and is used for the extension that is connected with first seat body 11, the extension can be the solid structure that main part structure whole downwardly extending formed, also can be the left and right sides part downwardly extending of main part structure forms two left and right sides backup pad, specifically can select as required, do not make the restriction here, the anterior part of extension extends forward and forms the ear seat that protrudes in the anterior side terminal surface of second seat body 21, second hole structure 22 sets up on the ear seat, sliding shaft 3 and the swing joint mode of second hole structure 22 and first hole structure 12 can see the above, no more detailed here.

Optionally, at least one of the first hole structure 12 and the second hole structure 22 is a kidney-shaped through hole, and the length of the kidney-shaped through hole is disposed along the height direction.

As shown in fig. 1, 3 and 4, in order to facilitate assembling the catheter fixing base 2 and the base 1, in this embodiment, the sliding shaft 3 is a circular pin shaft with a circular cross section, and the first hole structure 12 and the second hole structure 22 are through holes, so when the catheter fixing base 2 is mounted on the base 1, only the first hole structure 12 and the second hole structure 22 need to be aligned, and the sliding shaft 3 needs to be threaded from one side to the other side, at this time, at least one of the first hole structure 12 or the second hole structure 22 is provided with a kidney-shaped through hole along the height direction, so that the requirement that the catheter fixing base 2 moves upwards and rotates to one side relative to the base 1 can be met.

Optionally, the base 1 further includes a mounting groove structure 13, in the length direction of the base 1, the mounting groove structure 13 is disposed on the first base 11 and located on one side of the first hole structure 12, the catheter fixing base 2 further includes a boss structure 23, the boss structure 23 is disposed on the second base 21 and matched with the mounting groove structure 13, and the mounting groove structure 13 is used for accommodating the boss structure 23.

As shown in fig. 3 and 4, when the catheter fixing mechanism is in a normal working state, in order to make the placement of the catheter fixing seat 2 on the base 1 more stable, in this embodiment, the ear seat of the catheter fixing seat 2 is disposed at the front portion, so that the rear side of the first seat body 11 located in the first hole structure 12 on the base 1 is further provided with a mounting groove structure 13, and correspondingly, the rear side of the second seat body 21 located in the catheter fixing seat 2 is provided with a boss structure 23 protruding from the end surfaces on the left and right sides of the second seat body 21, and the boss structure 23 is accommodated in the mounting groove structure 13, so that the catheter fixing seat 2 is more stable in the normal working state.

As shown in fig. 3 and 4, the longitudinal direction of the base 1 is the Y-axis direction.

The mounting groove structure 13 is provided on both the left and right side plates of the second base 21, the cross-sectional shape of the mounting groove structure 13 may be square, circular, or a combination thereof, and the cross-sectional shape of the boss structure 23 may be square, circular, or a combination thereof, and the mounting groove structure 13 may be a through groove penetrating the side plates in the left-right direction, or a blind groove provided on the inner wall of the side plate.

Preferably, the installation groove structure 13 adopts the oblong blind groove that sets up on the curb plate inner wall, adopts blind groove can restrict catheter fixing base 2 and remove along controlling the direction when operating condition, makes it more stable, and oblong blind groove's notch part is smooth curved surface, and the cell wall is rectilinear, and the tank bottom is semicircular, and correspondingly, boss structure 23 adopts cylindric structure, and cylindric structure's length and radius all match with oblong blind groove, and it is more convenient when putting into installation groove structure 13 to adopt notch part to be smooth curved surface's structure messenger's boss structure 23.

Optionally, the catheter fixing mechanism further comprises a locking member 4, wherein the locking member 4 is arranged on the catheter fixing seat 2 and is used for being detachably connected with the base 1.

As shown in fig. 1 and 2, the vascular interventional device usually performs operations such as advancing, retracting or turning during the working process, and in order to prevent the catheter fixing seat 2 from shaking or shifting during the working process, in this embodiment, a locking member 4 is further required to be disposed on the catheter fixing seat 2 or the base 1, and the catheter fixing seat 2 and the base 1 are locked by the locking member 4.

Illustratively, screw holes may be provided at appropriate positions on the catheter fixing base 2 and on the base 1, and the locking member 4 may be a bolt, and the bolt may be screwed into the screw hole to lock the catheter fixing base 2 to the base 1 when the catheter fixing mechanism is in an operating state.

Optionally, the base 1 further includes a clamping groove structure 14, the clamping groove structure 14 is disposed on the first base 11, the catheter fixing base 2 further includes an ear plate 24, the ear plate 24 is disposed on the second base 21, and the locking member 4 is a fastening structure rotationally connected with the ear plate 24 and used for being fastened into the clamping groove structure 14.

As shown in fig. 3 and fig. 4, since the catheter 100 needs to be frequently replaced when the vascular interventional device is used for operation, in order to make the switching between the working state and the replacement of the catheter 100 more convenient for the catheter fixing mechanism, in this embodiment, the locking member 4 adopts a fastening structure, two pairs of left and right ear plates 24 are provided on the second seat 21 of the catheter fixing seat 2, ear holes are provided on the ear plates 24, the two pairs of fastening structures are respectively mounted on the two pairs of left and right ear plates 24 through pins, two left and right fastening groove structures 14 are further provided at corresponding positions on the second seat 21 of the base 1, and the fastening structure is fastened or opened with the fastening groove structures 14 by turning the fastening structure up and down, so that the catheter fixing seat 2 is fastened or unlocked more quickly and conveniently compared with bolts and the like.

Optionally, the base 1 further includes a hollow structure 15, where the hollow structure 15 is disposed on the first base 11 and located on one side of the clamping groove structure 14 near the fastening structure, and the hollow structure 15 is provided with a plurality of hollow structures 15, and in the length direction of the base 1, the plurality of hollow structures 15 are disposed at intervals.

As shown in fig. 3, in order to make the clamping structure and the clamping groove structure 14 clamped and matched more smoothly, in this embodiment, be located on the first base 1 and still be equipped with hollow structure 15 on the side wall that clamping groove structure 14 is close to the clamping structure, can reduce the intensity of clamping groove structure 14 lateral wall through setting up hollow structure 15, when clamping structure clamps into clamping groove structure 14, one side lateral wall that clamping groove structure 14 is close to clamping structure can produce certain degree deformation, make things convenient for clamping structure to clamp into clamping groove structure 14, simultaneously, through setting up hollow structure 15 can also reduce the materials of base 1, weight is lightened, reduce cost, a plurality of hollow structures 15 set up along the length direction interval of base 1, both can satisfy clamping groove structure 14 lateral wall deformation demand, can prevent again that the intensity of first pedestal 11 is too low, reduce the risk that clamping structure clamps into clamping groove structure 14 after easy escape.

Optionally, the catheter fixing base 2 further includes a through hole structure 25, and in the thickness direction of the catheter fixing base 2, the through hole structure 25 penetrates the second base 21 and is used for penetrating the catheter 100.

As shown in fig. 2 and 4, in order to facilitate the threading of the catheter 100 from one side to the other side of the catheter fixing seat 2, in this embodiment, a circular arc-shaped groove structure is provided in the main structure portion of the second seat body 21 along the thickness direction thereof, a through hole structure 25 penetrating the second seat body 21 is provided in the center of the bottom of the groove structure, a clip may be disposed in the through hole structure 25, and the catheter 100 is threaded in the clip, preferably, for facilitating the rotation of the clip, the through hole structure 25 may be a circular through hole structure 25.

As shown in fig. 4, the thickness direction of the catheter fixing base 2 is the Y-axis direction.

Another embodiment of the present utility model provides a vascular access device for pushing a catheter 100 and a guidewire 200, the guidewire 200 being partially threaded into the catheter 100, comprising a catheter securement mechanism as above.

As shown in fig. 1 and 2, a clamp is disposed in the through hole structure 25 of the catheter fixing seat 2, the catheter 100 is inserted into the front side of the catheter fixing seat 2 from the rear side of the catheter fixing seat 2 through a clamping connection disposed on the catheter fixing seat 2, the tail end of the catheter 100 is clamped on the clamp, the guide wire 200 is inserted into the catheter 100 from the rear side of the catheter fixing seat 2, when the catheter 100 needs to be replaced, the clamping structure on the catheter fixing seat 2 can be disengaged from the clamping groove structure 14 on the base 1, the catheter fixing seat 2 is moved upwards, then the catheter fixing seat 2 is turned forward until the second conical gear disposed on the front end surface of the catheter fixing seat 2 is abutted against the first conical gear disposed on the base 1, and after the catheter fixing seat 2 cannot be turned continuously, the catheter fixing seat 2 can be kept in an inclined state under the support of the first conical gear, at this time, the old catheter can be pulled out from the rear side of the catheter fixing seat 2 or a new catheter can be inserted into the catheter fixing seat 2 from the rear side, thereby completing the replacement of the catheter 100.

Optionally, the vascular intervention device further comprises a guide wire fixing seat 10, and the guide wire fixing seat 10 is arranged at one side of the guide wire fixing seat 2 of the guide wire fixing mechanism in the length direction of the guide wire fixing mechanism and is used for fixing the guide wire 200.

As shown in fig. 1 and 2, in order to facilitate threading the guide wire 200 into the catheter 100, in this embodiment, the guide wire fixing seat 10 is further disposed at the rear side of the catheter fixing seat 2, and since the guide wire 200 generally adopts a structure with smaller diameter and better flexibility, a smaller gap setting is kept between the guide wire fixing seat 10 and the catheter fixing seat 2, so that the push failure caused by bending due to too long push distance of the guide wire 200 can be prevented.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The utility model provides a pipe fixing mechanism, its characterized in that includes base (1), pipe fixing base (2) and sliding shaft (3), pipe fixing base (2) with base (1) are used for through sliding shaft (3) rotate and connect, just pipe fixing base (2) are used for wearing to establish pipe (100), sliding shaft (3) are used for base (1) or pipe fixing base (2) follow the direction of height and slide.

2. Catheter fixing mechanism according to claim 1, characterized in that the base (1) comprises a first housing (11) and a first hole structure (12), the first hole structure (12) is arranged on the first housing (11), the catheter fixing seat (2) comprises a second housing (21) and a second hole structure (22), the second housing (21) is used for penetrating the catheter (100), the second hole structure (22) is arranged on the second housing (21), and the sliding shaft (3) is movably connected with the second hole structure (22) and the first hole structure (12).

3. Catheter securement mechanism according to claim 2, characterized in that at least one of the first and second hole structures (12, 22) is a kidney-shaped through hole, the length of which is arranged in the height direction.

4. Catheter fixing mechanism according to claim 2, wherein the base (1) further comprises a mounting groove structure (13), in the length direction of the base (1), the mounting groove structure (13) is arranged on the first base body (11) and located at one side of the first hole structure (12), the catheter fixing seat (2) further comprises a boss structure (23), the boss structure (23) is arranged on the second base body (21) and matched with the mounting groove structure (13), and the mounting groove structure (13) is used for accommodating the boss structure (23).

5. Catheter fixing mechanism according to claim 2, further comprising a locking member (4), said locking member (4) being arranged on said catheter fixing base (2) and being adapted for detachable connection with said base (1).

6. Catheter-fixing mechanism according to claim 5, characterized in that the base (1) further comprises a clamping groove structure (14), the clamping groove structure (14) is arranged on the first base body (11), the catheter-fixing base (2) further comprises an ear plate (24), the ear plate (24) is arranged on the second base body (21), and the locking piece (4) is a clamping structure, and the clamping structure is rotationally connected with the ear plate (24) and is used for being clamped into the clamping groove structure (14).

7. Catheter-securement mechanism according to claim 6, characterized in that the base (1) further comprises a hollowed-out structure (15), the hollowed-out structure (15) being arranged on the first base body (11) and being located on the side of the clamping groove structure (14) close to the clamping structure.

8. Catheter fixing mechanism according to any of claims 2 to 7, characterized in that the catheter fixing base (2) further comprises a through-hole structure (25), which through-hole structure (25) penetrates the second base body (21) in the thickness direction of the catheter fixing base (2) and is used for penetrating the catheter (100).

9. Vascular intervention device for pushing a catheter (100) and a guidewire (200), the guidewire (200) being partially threaded in the catheter (100), characterized in that it comprises a catheter fixation mechanism according to any one of claims 1 to 8.

10. The vascular interventional device according to claim 9, further comprising a guide wire holder (10), the guide wire holder (10) being arranged on one side of the catheter holder (2) of the catheter holder in the length direction of the catheter holder and being adapted to pass through the guide wire (200).