CN112676472A

CN112676472A - Adjustable frock clamp for vascular support heat setting

Info

Publication number: CN112676472A
Application number: CN202011463636.1A
Authority: CN
Inventors: 冯海全; 冯浩翔; 白丽平; 王坤; 王永刚
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-04-20

Abstract

The invention relates to an adjustable tool clamp for heat setting of a vascular stent, which comprises an installation seat, a supporting plate, a main shaft and a connecting rod assembly, wherein the supporting plate is used for sleeving the vascular stent and can expand or contract along the radial direction, two ends of the connecting rod assembly are respectively and rotatably connected with the supporting plate and the main shaft, the main shaft and the installation seat are arranged in a sliding mode, and when the main shaft and the installation seat slide relatively, the supporting plate can expand or contract. The adjustable blood vessel stent heat setting tool clamp can realize graded gradual expansion, the expansion ratio of each step of expansion diameter can be adjusted according to the stent structure and requirements, and the adjustable blood vessel stent heat setting tool clamp has the advantages of simple structure, high efficiency and convenience in operation.

Description

Adjustable frock clamp for vascular support heat setting

Technical Field

The invention belongs to the field of medical equipment manufacturing, and particularly relates to a tool clamp for adjustable intravascular stent heat setting.

Background

The nickel-titanium alloy intravascular stent has good mechanical property, can effectively prevent vascular injury and slow down vascular restenosis. However, such stents are generally cut by laser, and have complex processing procedures, high technical requirements and expensive manufacturing cost. The nickel-titanium alloy has highly nonlinear stress-strain behavior and is very sensitive to temperature, which also causes very strict requirements on heat treatment and shaping processes when the nickel-titanium alloy intravascular stent is processed and manufactured, and the heat treatment and shaping processes become key technologies for influencing the quality of the nickel-titanium alloy intravascular stent.

When the nickel-titanium alloy intravascular stent is manufactured, a nickel-titanium alloy tube with a small diameter is processed into the shape of the stent by a laser cutting method, then the nickel-titanium alloy tube is expanded by a tool fixture and then is subjected to heat treatment and shaping to form the intravascular stent. In order to prevent the stent from breaking in the expansion process, the expansion amount cannot be too large, the expansion amount needs to be controlled to gradually expand the stent, and the stent with a smaller diameter can be expanded to a larger diameter through a repeated heat setting process. The mandrel of the tool clamp for the heat setting of the intravascular stent disclosed in the Chinese invention patent CN210098674U has a certain diameter, the diameter of the expanded intravascular stent is also certain during each heat setting, the size of the expanded diameter cannot be adjusted according to requirements, and the stent is easy to break due to the overlarge expanded diameter during the expansion of the stent. The outer diameter of the propulsion shaft of the tool clamp for the heat setting of the intravascular stent disclosed in the Chinese patent application CN210147898U is constant, so that the diameter of the intravascular stent subjected to heat setting is constant, and if different expansion ratios are required, the propulsion shaft needs to be replaced, the operation is very inconvenient, and the production efficiency is low. Although the expansion diameter of the Chinese patent CN209887461U can be properly adjusted, the rotation radius is limited by the length of the connecting rod, the adjustable range of the bracket is very limited, and one tool clamp is difficult to meet the requirement of expansion with a large expansion ratio, so that the production capacity is greatly limited.

The expansion diameter of the tool fixture in the prior art is fixed or the adjustable range of the diameter of the tool fixture is limited, when the intravascular stent with a smaller diameter is expanded to a larger diameter, the stent is easy to break due to the fact that the tool fixture is not replaced, the stent is not replaced, the expansion operation is complex, time and labor are wasted, and when the stent with the different diameters is required, the same tool fixture cannot meet the related requirements.

Disclosure of Invention

The invention aims to provide a tool clamp for the heat setting of a vascular stent, which has an adjustable expansion diameter range and a larger expansion ratio.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides an adjustable vascular stent frock clamp for heat setting, which comprises an installation seat and a supporting plate which is used for sleeving a vascular stent and can expand or contract along the radial direction, and is characterized in that: the tool clamp further comprises a main shaft and a connecting rod assembly, two ends of the connecting rod assembly are respectively rotatably connected with the supporting plate and the main shaft, the main shaft and the mounting seat are arranged in a sliding mode, and when the main shaft and the mounting seat slide relatively, the supporting plate can be expanded or contracted.

The tool clamp has an unfolding state and a folding state, when the vascular stent is expanded, the tool clamp is in the folding state, the unexpanded vascular stent is sleeved on the supporting plate, and the expansion diameter of the supporting plate is controlled by the relative sliding of the main shaft and the mounting seat according to the expansion requirement of the vascular stent so as to complete the expansion of the vascular stent. The expansion diameter of the supporting plate can be adjusted according to the relative sliding position of the main shaft and the mounting seat, and the intravascular stent is gradually expanded by gradually adjusting the relative sliding position of the main shaft and the mounting seat, so that the rupture risk of the intravascular stent is reduced.

Preferably, the mounting seat comprises a baffle plate, the main shaft slides through the baffle plate, one end of the support plate abuts against the baffle plate, and when the support plate expands or contracts, the support plate slides along the radial direction of the baffle plate.

Further preferably, one end of the support plate is provided with a plurality of rolling bodies, the support plate is abutted against the baffle plate through the rolling bodies, and when the support plate is expanded or contracted, the support plate slides along the radial direction of the baffle plate through the rolling bodies. The friction force of the radial sliding of the supporting plate is reduced due to the arrangement of the rolling bodies, so that the expansion of the intravascular stent is easier; meanwhile, the friction damage between the supporting plate and the baffle is reduced, the service lives of the baffle and the supporting plate are prolonged, and the problem that the precision of the tool clamp is reduced due to the abrasion of the supporting plate or the baffle is solved.

Further preferably, the number of the rolling bodies on the supporting plate is 1-5, and preferably 1-3.

Preferably, the distance from the outer edge of the baffle to the axial lead of the main shaft is larger than or equal to the radius of the support plate when the support plate is expanded to the maximum state.

Further preferably, the shortest distance from the outer edge of the baffle to the axis of the main shaft is greater than or equal to the radius of the support plate when the support plate is expanded to the maximum state.

The shape of the baffle plate in the invention includes, but is not limited to, round, square, pentagon and hexagon, and the baffle plate in the invention is mainly used for abutting against the support plate so that the support plate can expand or contract along the radial direction.

Preferably, the one end of main shaft is formed with the external screw thread, frock clamp is still including being formed with the internal thread and propping and establishing nut on the mount pad, the nut with the main shaft passes through the internal thread with the external screw thread cooperatees and connects, when rotatory during the nut, the main shaft can be relative the mount pad slides.

Preferably, one end of the nut is provided with a rolling bearing, and the nut is abutted to the mounting seat through the rolling bearing. When the main shaft slides relative to the mounting seat by rotating the nut, the nut rotates to drive the rolling bearing to rotate due to the arrangement of the rolling bearing, so that the friction force between the nut and the mounting seat and the friction damage between the nut and the mounting seat are reduced, the service lives of the nut and the mounting seat are prolonged, and the problem of reduction of the precision of the tool clamp caused by the abrasion of the nut or the mounting seat is avoided.

Further preferably, the rolling bearing is in the shape of an annular thrust rolling bearing.

Preferably, the work fixture further comprises a handle mounted on the nut. The handle is used for driving the nut to rotate so as to realize the relative sliding of the main shaft and the mounting seat.

Preferably, the internal thread and the external thread are trapezoidal threads, saw-tooth threads, or rectangular threads.

Further preferably, the internal thread and the external thread are trapezoidal threads or rectangular threads. Trapezoidal threads or rectangular threads can realize bidirectional rotation and have the same resistance.

Preferably, the side of the main shaft connected with the mounting seat is provided with scale marks for displaying the expanded diameter of the blood vessel stent.

Preferably, each connecting rod assembly comprises a plurality of groups arranged along the axial direction of the main shaft, each group of connecting rod assemblies comprises a plurality of connecting rods distributed along the circumferential direction of the main shaft, and two ends of each connecting rod are respectively connected with the support plate and the main shaft in a rotating manner through hinges.

Preferably, the axial direction of the connecting rod assembly is provided with 2-6 groups, preferably 3-4 groups. Preferably, the tooling clamp further comprises a limiting plate which is arranged between the main shaft and the connecting rod assembly and can prevent the connecting rod assembly from rotating. The limiting plate is used for preventing the included angle between the connecting rod assembly and the axis of the main shaft from exceeding 90 degrees, and when the included angle between the connecting rod assembly and the axis of the main shaft is 90 degrees, the limiting plate enables the connecting rod assembly not to rotate continuously.

Preferably, the included angle between the connecting rod assembly and the axis of the main shaft is 0-90 degrees.

Further preferably, the included angle between the connecting rod assembly and the axis of the main shaft is 45-90 degrees. Certain contained angle is pressed from both sides mutually with the main shaft axis to when using, link assembly atress effect produces radial force down, and then can be under the drive of connecting rod, makes better opening of backup pad, and vascular support is expanded steadily under the effect of backup pad.

Preferably, one end of the connecting rod assembly is rotatably connected to the main shaft through a first hinge, and the other end of the connecting rod assembly is rotatably connected to the supporting plate through a second hinge. Through hinged joint for frock clamp assembly is simple, convenient operation.

Preferably, the support plate includes a plurality of support portions evenly distributed along a circumferential direction of the main shaft.

Preferably, the rolling body is arranged in the middle of one end of the supporting part, and the supporting part is abutted on the mounting seat through the rolling body.

Preferably, the plurality of support portions collectively enclose a cylinder.

Preferably, the support part is a long plate with a circular arc shape. Circular-arc long slab encloses and establishes into the cylinder for the area of contact increase of backup pad and vascular support, thereby make vascular support atress even, and can contact with the backup pad more fully.

Preferably, the number of the plurality of supporting parts is 2-6, and 3-4 pieces are preferred.

Preferably, the number of the plurality of links distributed circumferentially of the link assembly is the same as the number of the support portions.

The tool clamp further comprises a host, an image acquisition system and a stress sensor, wherein the host is used for acquiring the deformation condition of the intravascular stent and is connected with the host.

According to the invention, the main shaft moves along the axial direction by utilizing spiral transmission, the support plate moves outwards in the radial direction when the connecting rod assembly rotates relatively, the diameter of the blood vessel stent is gradually increased after the blood vessel stent is expanded, and the deformation condition of the stent is constantly observed by the stress sensor and the image acquisition system, so that the fracture is prevented.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the adjustable blood vessel stent heat setting tool clamp can realize graded gradual expansion, the expansion ratio of each step of expansion diameter can be adjusted according to the stent structure and requirements, and the adjustable blood vessel stent heat setting tool clamp has the advantages of simple structure, high efficiency and convenience in operation.

Drawings

Fig. 1 is a front view of a tool holder in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a tool holder in embodiment 1 of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at position A;

FIG. 4 is a partial enlarged view of the position B of FIG. 1;

fig. 5 is a schematic structural view of a nut of a tool holder according to embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a baffle plate of a tool holder in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of a tool holder in a contracted state according to embodiment 1 of the present invention;

fig. 8 is a schematic structural view of an expanded state of a tool holder in embodiment 1 of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 1 at position C;

in the above drawings: 1. a main shaft; 2. a limiting plate; 3. a first hinge; 4. a connecting rod; 5. a second hinge; 6. a support plate; 7. a baffle plate; 8. a nut; 9. a handle; 10. a vascular stent; 11. a stress sensor; 12. an image acquisition system; 13. a host; 14. a display; 15. scale lines; 16. a rolling bearing; 17. and a rolling body.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which the invention is attached.

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive. In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

The orientations of "front", "rear", "left", "right", and the like in the present embodiment are defined as the orientations in fig. 1.

The first embodiment is as follows:

the invention provides a tooling fixture for adjustable blood vessel stent heat setting, which comprises a mounting seat, a supporting plate 6, a main shaft 1 and a connecting rod assembly, wherein the supporting plate 6 is used for sleeving a blood vessel stent 10 and can expand or contract along the radial direction, two ends of the connecting rod assembly are respectively and rotatably connected with the supporting plate 6 and the main shaft 1, the main shaft 1 and the mounting seat are arranged in a sliding manner, and when the main shaft 1 and the mounting seat slide relatively, the supporting plate 6 can expand or contract. One of the improvements of the invention is that the size of the diameter of the intravascular stent can be accurately controlled by controlling the relative sliding of the main shaft 1 and the mounting seat, the use is convenient, and the production efficiency is high.

Fig. 1-2 are schematic views of a tooling fixture for heat setting of an adjustable vascular stent of the present embodiment, and fig. 7-8 are schematic structural views of the tooling fixture of the present embodiment in a collapsed state and an expanded state, respectively. The mounting seat in the embodiment comprises a baffle 7, the spindle 1 slides through the baffle 7, one end of the support plate 6 is provided with a rolling body 17 and abuts against the baffle 7 through the rolling body 17, and when the support plate 6 expands or contracts, the support plate 6 slides along the radial direction of the baffle 7 through the rolling of the rolling body 17. The shortest distance from the outer edge of the baffle 7 to the axial lead of the main shaft 1 is more than or equal to the radius of the support plate 6 when the support plate is expanded to the maximum state. The shape of the baffle 7 in the invention includes, but is not limited to, circular, square, pentagonal and hexagonal, and the baffle 7 in the invention is mainly used for abutting against the support plate 6 so as to enable the support plate 6 to expand or contract along the radial direction. Fig. 6 shows a specific shape of the baffle 7 in this embodiment, the baffle 7 in this embodiment is annular, the left and right side surfaces are planes, the inner circle of the baffle 7 is sleeved on the spindle 1 and is slidably connected with the spindle 1, the right end of the supporting plate 6 abuts against the left side surface of the baffle 7 and can slide on the left side surface along the radial direction of the baffle 7, and the outer radius of the baffle 7 is greater than or equal to the radius of the supporting plate 6 when the baffle is expanded to the maximum state.

The one end of main shaft 1 is formed with the external screw thread, supports to establish nut 8 on the mount pad and is equipped with the internal thread, and nut 8 and backup pad 6 are located the relative both sides of baffle 7, and nut 8 and main shaft 1 cooperate through internal thread and external screw thread to be connected, and the one end of nut 8 is equipped with 1 annular thrust antifriction bearing 16, and nut 8 supports to establish on baffle 7 through antifriction bearing 16, and when

swivel nut

8, 16 relative baffles 7 of antifriction bearing rotate, and main shaft 1 can be relative the mount pad slides, and the friction between nut 8 and the baffle 7 has been reduced in the setting of antifriction bearing 16. The nut 8 is fixedly connected with a handle 9, the handle 9 is used for driving the nut 8 to rotate so as to realize the relative sliding of the main shaft 1 and the mounting seat, and the handle 9 and the nut 8 can be fixedly connected through threads. The internal thread and the external thread are trapezoidal threads, saw-tooth threads or rectangular threads. Internal thread and external screw thread are trapezoidal thread for adopting in this embodiment, and trapezoidal thread can realize two-way rotation and the resistance is the same. Fig. 5 shows a schematic structural diagram of the nut 8 of this embodiment, the shape of the nut 8 in this embodiment includes, but is not limited to, circular, square, and trapezoidal, the nut 8 in this embodiment rotates to drive the spindle 1 to move axially, the threaded arrangement of the nut 8 and the spindle 1 enables the spindle 1 to slide relative to the mounting seat to more accurately complete the expansion of the support plate 6, it should be noted that, in order to make the spindle 1 and the mounting seat slide relative to each other, besides being driven by threads, the described solution of this invention also includes, but is not limited to, a direct drive or a slot drive manner, and the described solution of this invention is not limited to the drive manner of the spindle 1 and the mounting seat.

Fig. 3 shows a tool withdrawal groove when the spindle 1 is threaded, fig. 4 shows a scale 15 provided on the side where the mounting seat of the spindle 1 is connected, the expanded diameter of the stent 10 can be shown by the scale 15, and fig. 9 shows a rolling body at one end of the support plate.

Each connecting rod assembly comprises a plurality of groups of connecting rods 4 which are arranged along the axial direction of the main shaft 1, each group of connecting rod assemblies comprises a plurality of connecting rods 4 which are distributed along the circumferential direction of the main shaft 1, and two ends of each connecting rod 4 are respectively connected with the supporting plate 6 and the main shaft 1 in a rotating mode through hinges. And 2-6 groups of connecting rod assemblies are arranged along the axial direction of the main shaft, and 3 groups of connecting rod assemblies are arranged in the embodiment. Be equipped with limiting plate 2 between main shaft 1 and the connecting rod 4 of link assembly, limiting plate 2 is used for preventing that the axis contained angle of link assembly and main shaft 1 from exceeding 90. The axis contained angle of link assembly and main shaft 1 is 0~90, preferably 45~90, and link assembly and 1 axis of main shaft press from both sides certain contained angle mutually to when using, produce radial force under the link assembly atress effect, and then can be under the drive of connecting rod 4, make better opening of backup pad 6, vascular support 10 is expanded steadily under the effect of backup pad 6. One end of the connecting rod assembly is rotatably connected with the main shaft 1 through the first hinge 3, the other end of the connecting rod assembly is rotatably connected with the supporting plate 6 through the second hinge 5, and the connecting rod assembly is connected with the tool clamp through the hinge, so that the tool clamp is simple to assemble and convenient to operate.

The supporting plate 6 comprises a plurality of supporting parts which are uniformly distributed along the circumferential direction of the main shaft 1, the supporting parts are jointly enclosed into a cylinder, 1 rolling body 17 is arranged in the middle of one end of each supporting part, and the supporting parts are abutted to the baffle 7 through the rolling bodies 17. The supporting portion in this embodiment is the circular-arc long plate, and circular-arc long plate encloses and establishes into the cylinder for the area of contact increase of backup pad 6 and vascular support 10, thereby make vascular support 10 atress even, and can contact with backup pad 6 more fully. The number of the plurality of support portions is 2-6, the number of the support portions in the embodiment is 3, the support portions slide along the radial direction of the baffle plate through the rolling bodies 17, and the number of the plurality of links 4 distributed in the circumferential direction of the connecting rod assembly is the same as the number of the support portions.

The tool clamp further comprises a host 13, an image acquisition system 12 and a stress sensor 11, wherein the image acquisition system 12 and the stress sensor are used for acquiring the deformation condition of the intravascular stent 10 and are connected with the host 13. The invention utilizes the screw drive to make the main shaft move along the axial direction, the connecting rod relatively rotates to make the supporting plate move outwards in the radial direction, the diameter of the blood vessel stent is gradually increased after the blood vessel stent is expanded, and the deformation condition of the stent is constantly observed through the stress sensor and the image acquisition system to prevent the fracture.

The tool clamp in the embodiment comprises the following use steps:

1. the nut 8 is rotated, and the main shaft 1 moves leftwards along the axis direction through screw transmission;

2. the connecting rod 4 rotates relative to the main shaft 1 and the supporting plate 6 through a first hinge 3 and a second hinge 5;

3. the supporting plate 6 moves radially inwards, the outer diameter is gradually reduced, and the tool clamp is in a furled state;

4. installing the blood vessel stent 10 on a support plate 6 of a tool clamp;

5. the nut 8 is rotated in the opposite direction, and the spindle 1 is moved rightwards along the axis direction through screw transmission;

6. the connecting rod 4 moves outwards through the first hinge 3, the outer diameter of the connecting rod gradually increases, and the tool clamp is in an unfolded state;

8. the diameter of the blood vessel stent 10 is gradually increased under the radial expansion force of the supporting plate 6;

9. the size of the diameter of the blood vessel support 10 can be judged according to the position of the scale mark 15 on the main shaft 1;

10. the stress sensor 11 can judge the stress value of the blood vessel stent 10 when expanding;

11. the deformation condition of the blood vessel stent 10 after expansion can be observed through the image acquisition system 12;

12. the signals are collected by the host machine 13 for processing, and the stress value and the deformation condition are displayed by the display 14.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an adjustable vascular support frock clamp for heat setting, includes the mount pad, is used for the cover to establish vascular support (10) and can be along radial expansion or shrink backup pad (6), its characterized in that: frock clamp still includes main shaft (1) and link assembly, link assembly's both ends respectively with backup pad (6) with main shaft (1) rotate mutually and connect, main shaft (1) with mount pad slides mutually and sets up and works as main shaft (1) with during the mount pad relative slip, backup pad (6) can expand or shrink.

2. The adjustable vascular stent frock clamp for heat setting of claim 1, characterized in that: the mounting seat comprises a baffle (7), the main shaft (1) penetrates through the baffle (7) in a sliding mode, one end portion of the supporting plate (6) abuts against the baffle (7), and when the supporting plate (6) expands or contracts, the supporting plate (6) slides along the radial direction of the baffle (7).

3. The adjustable vascular stent frock clamp for heat setting of claim 2, characterized in that: a plurality of rolling bodies (17) are installed at one end of the supporting plate (6), the supporting plate (6) is abutted to the baffle (7) through the rolling bodies (17), and when the supporting plate (6) expands or contracts, the supporting plate (6) slides along the radial direction of the baffle (7) through the rolling bodies (17).

4. The adjustable vascular stent frock clamp for heat setting of claim 2 or 3, characterized in that: the distance from the outer edge of the baffle (7) to the axial lead of the main shaft (1) is more than or equal to the radius of the support plate (6) when the support plate is expanded to the maximum state.

5. The adjustable vascular stent frock clamp for heat setting of claim 1 or 2, characterized in that: an external thread is formed at one end of the main shaft (1), the tool clamp further comprises a nut (8) which is provided with an internal thread and is abutted to the mounting seat, the nut (8) and the main shaft (1) are connected in a matched mode through the internal thread and the external thread, and when the nut (8) is rotated, the main shaft (1) can slide relative to the mounting seat; and/or one end of the nut (8) is provided with a rolling bearing (16), and the nut (8) is abutted to the mounting seat through the rolling bearing (16).

6. The adjustable vascular stent frock clamp for heat setting of claim 5, characterized in that: the tool clamp further comprises a handle (9) arranged on the nut (8); and/or the internal thread and the external thread are trapezoidal threads, saw-tooth threads or rectangular threads.

7. The adjustable vascular stent frock clamp for heat setting of claim 1, characterized in that: and scale marks (15) are arranged on one side of the main shaft (1) connected with the mounting seat.

8. The adjustable vascular stent frock clamp for heat setting of claim 1, characterized in that: the connecting rod assembly comprises a plurality of groups arranged along the axial direction of the main shaft (1), each group of connecting rod assembly comprises a plurality of connecting rods (4) distributed along the circumferential direction of the main shaft (1), and two ends of each connecting rod (4) are respectively connected with the supporting plate (6) and the main shaft (1) in a rotating mode through hinges.

9. The adjustable vascular stent frock clamp for heat setting of claim 1 or 7, characterized in that: the tooling clamp further comprises a limiting plate (2) which is arranged between the main shaft (1) and the connecting rod assembly and can prevent the connecting rod assembly from rotating.

10. The adjustable vascular stent frock clamp for heat setting of claim 1, characterized in that: the supporting plate (6) comprises a plurality of supporting parts which are uniformly distributed along the circumferential direction of the main shaft (1), the supporting parts are commonly enclosed into a cylinder, and the number of the supporting parts is 2-6.

11. The adjustable vascular stent frock clamp for heat setting of claim 1, characterized in that: the frock clamp further comprises a host (13) which is used for collecting the deformation condition of the blood vessel support (10) and an image collecting system (12) and a stress sensor (11) which are connected with the host (13).