CN210098674U - Fixture for heat setting of NiTi alloy intravascular stent - Google Patents

Fixture for heat setting of NiTi alloy intravascular stent Download PDF

Info

Publication number
CN210098674U
CN210098674U CN201920751199.XU CN201920751199U CN210098674U CN 210098674 U CN210098674 U CN 210098674U CN 201920751199 U CN201920751199 U CN 201920751199U CN 210098674 U CN210098674 U CN 210098674U
Authority
CN
China
Prior art keywords
niti alloy
seat
fixed
sliding
heat setting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920751199.XU
Other languages
Chinese (zh)
Inventor
杨时新
何晓东
冯海全
李海青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inner Mongolia University of Technology
Original Assignee
Inner Mongolia University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inner Mongolia University of Technology filed Critical Inner Mongolia University of Technology
Priority to CN201920751199.XU priority Critical patent/CN210098674U/en
Application granted granted Critical
Publication of CN210098674U publication Critical patent/CN210098674U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The utility model discloses a tool clamp for heat setting of a NiTi alloy intravascular stent, which is used for carrying out size expansion on the NiTi alloy intravascular stent; the method comprises the following steps: the device comprises a base, a fixed seat, a sliding seat, a split type supporting seat, a lining pipe and a mandrel; the opposite side surfaces of the base are provided with sliding chutes; the fixed seat is fixed on one side of the base close to the end of the sliding chute; the sliding seat is of an inverted U-shaped structure, is transversely arranged above the base, and the inner wall of the opening end is in sliding connection with the sliding chute; the split supporting seats are respectively and correspondingly fixed on the tops of the fixed seat and the sliding seat; the lining pipe is a hollow cylindrical pipe formed by splicing a plurality of arc-shaped long plates, and two ends of the lining pipe are clamped between the two split supporting seats; the NiTi alloy intravascular stent is sleeved on the lining tube; the mandrel is inserted into the hollow cavity of the inner liner tube for expanding the inner liner tube. The utility model discloses can realize the not damaged expansion to NiTi alloy vascular support, and simple structure, convenient to use.

Description

Fixture for heat setting of NiTi alloy intravascular stent
Technical Field
The utility model relates to the technical field of medical equipment, more specifically the utility model relates to a NiTi alloy frock clamp for vascular support heat setting that says so.
Background
The nickel-titanium alloy is a special alloy which can automatically restore the plastic deformation of the nickel-titanium alloy into the original shape at a certain specific temperature. The expansion and contraction rate of the spring is more than 20%, the fatigue life of the spring reaches 7 times of 10, the damping characteristic of the spring is 10 times higher than that of a common spring, and the spring is a very excellent functional material due to the corrosion resistance of the spring is superior to that of the best medical stainless steel at present and has the excellent characteristics of wear resistance, corrosion resistance, high damping, superelasticity and the like, so that the spring can meet the application requirements of various engineering and medical science and is often used as a manufacturing material of a vascular stent.
However, the commonly used nickel-titanium alloy stent expansion and heat setting tool clamp is a tapered mandrel through which the stent is expanded to a required size. When the mandrel expands and shapes the vascular stent, the mandrel moves relative to the vascular stent, and the friction force between the mandrel and the vascular stent is large, so that the vascular stent is easily damaged. The method is very inconvenient to operate, the intravascular stent can be damaged again when the mandrel is dismounted after the intravascular stent is subjected to heat setting, the production efficiency is low, and the labor intensity of workers is high.
Therefore, the problem to be solved by those skilled in the art is how to provide a simple and efficient tool clamp for heat setting, which is not easy to damage and rub when expanding a nickel-titanium alloy stent.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a frock clamp for nifi alloy vascular support heat setting can realize the not damaged expansion to nifi alloy vascular support, and simple structure, convenient to use.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a NiTi alloy frock clamp for the heat setting of vascular stent is used for carrying on the size expansion to the NiTi alloy vascular stent; the method comprises the following steps: the device comprises a base, a fixed seat, a sliding seat, a split type supporting seat, a lining pipe and a mandrel;
the opposite side surfaces of the base are provided with sliding grooves;
the fixed seat is fixed on one side of the base close to the end of the sliding chute;
the sliding seat is of an inverted U-shaped structure, the sliding seat is transversely arranged above the base, and the inner wall of the opening end of the sliding seat is in sliding connection with the sliding chute;
the split supporting seats are respectively and correspondingly fixed on the tops of the fixed seat and the sliding seat;
the lining pipe is a hollow cylindrical pipe formed by splicing a plurality of arc-shaped long plates, and two ends of the lining pipe are clamped between the two split supporting seats; the NiTi alloy vascular stent is sleeved on the inner lining tube;
the mandrel is inserted into the hollow cavity of the lining pipe and is used for expanding the lining pipe.
Through the technical scheme, the utility model provides a NiTi alloy frock clamp for vascular support heat setting drives the circumferential expansion of multi-petal type inner liner pipe through the frictional expansion between dabber and multi-petal type inner liner pipe to make the NiTi alloy vascular support of cover above that is expanded, reach NiTi alloy vascular support and expand the anchor clamps and not receive the influence of dynamic friction and damage; opening the split supporting seat after the NiTi alloy intravascular stent is expanded, and taking down the NiTi alloy intravascular stent, the multi-petal inner lining tube and the mandrel; after the NiTi alloy intravascular stent is subjected to heat setting, the mandrel is drawn off, and the NiTi alloy intravascular stent is very easy to take down because the diameter of the multi-petal inner lining tube is smaller than that of the set NiTi alloy intravascular stent; and the NiTi alloy intravascular stents with different sizes can be expanded by replacing the mandrels with different sizes and adjusting the distance between the sliding seat and the fixed seat. The utility model discloses can avoid causing the damage of NiTi alloy intravascular stent because of expansion anchor clamps and the contact of NiTi alloy intravascular stent dynamic friction power, it is extravagant to reduce the material, adopts bushing pipe and dabber in the multi-section formula to realize simple structure during the expansion.
Preferably, in the above tooling fixture for heat setting of the NiTi alloy intravascular stent, the split supporting base includes a clamping block, a rubber block and a first hinge; the clamping blocks are symmetrically fixed at the tops of the fixed seat and the sliding seat respectively, and the binding surfaces of the two clamping blocks are provided with grooves; the rubber blocks are fixed in the grooves, and the binding surfaces of the two rubber blocks are provided with accommodating holes for clamping the lining pipe; the movable end of the first hinge is fixedly connected with the side walls of the two clamping blocks at the same side. The two clamping blocks are hinged through the first hinge, so that the clamping blocks can be conveniently opened and closed; meanwhile, the arrangement of the rubber blocks can improve the friction force after clamping, damage to the lining pipe can be prevented, and the clamping stability is stronger.
Preferably, in the above tooling fixture for heat setting of the NiTi alloy intravascular stent, the split supporting seat further comprises a second hinge and a clamping block; one movable end of the second hinge is fixed on one clamping block and is opposite to the first hinge, and the other movable end of the second hinge is provided with a clamping hole; the clamping block is fixed on the other clamping block and is used for being clamped with the clamping hole, and the clamping block is provided with a locking hole. The second hinge is used for when two grip blocks locks, through the cooperation of joint hole and joint piece with two grip blocks chucking to the accessible tool to lock passes the lockhole and pins, prevents when the dabber expansion, backs off two grip blocks, improves the structural stability when two grip blocks lock, and then improves the expansion precision of NiTi alloy intravascular stent.
Preferably, in the above-mentioned frock clamp for nifi alloy vascular support heat setting, still include the baffle, the baffle is fixed the fixing base top, and with keep away from to open supporting seat the one side laminating of sliding seat. The device can effectively prevent the mandrel from being extruded by axial force in the process of inserting the lining pipe to cause the lining pipe to be separated from the other end of the split supporting seat, plays a role in tightly jacking the lining pipe, and improves the stability of the expansion processing process.
Preferably, in the above frock clamp for heat setting of the NiTi alloy intravascular stent, the end of the sliding seat is provided with a sliding block matched with the sliding groove. Can effectively improve the connection stability between sliding seat and the spout, and then improve the machining precision.
Preferably, in the above frock clamp for heat setting of the NiTi alloy intravascular stent, the sliding seat is provided with a threaded hole in the vertical direction, and a bolt passes through the threaded hole and can abut against the top surface of the base. When the bolt not with base top surface butt, the sliding seat can slide in the base top along the spout, when the sliding seat was adjusted the suitable position, twisted the bolt, made bolt and base top surface butt, can fix the sliding seat, and it is simple to adjust, convenient to use, stability is strong.
Preferably, in the above frock clamp for heat setting of the NiTi alloy stent, the bolts are respectively located at two sides of the split supporting seat at the top of the sliding seat. Through two bolt symmetry butts, can further improve the fixed effect of butt.
Preferably, in the above tooling fixture for heat setting of the NiTi alloy intravascular stent, the lining tube is formed by splicing three arc-shaped long plates, and the cross section of the lining tube is triangular with sharp corners passing through arcs. The three-section type lining pipe formed by the three arc long plates is convenient to process and simple in structure, and can improve smoothness matched with the mandrel through the arc transition sharp corner, so that smooth insertion of the mandrel is facilitated, and hard friction and extrusion deformation are prevented.
Preferably, in the above tooling fixture for heat setting of the NiTi alloy intravascular stent, the cross section of the mandrel is a triangle with sharp corners passing through an arc and circular sides sunken inwards, and one end of the mandrel is of a conical structure. Through circular arc transition closed angle and each limit inwards is circular-arc sunken, can only guarantee the closed angle of the circular arc transition of dabber and the closed angle contact of the circular arc transition of interior bushing pipe, and each limit can not contact with each limit of interior bushing pipe owing to the inside sunken structural feature, reduces frictional force, improves the expansion precision. Meanwhile, the end head is of a conical structure, so that the mandrel can be conveniently inserted, the size of the equal-section part of the mandrel is the size required for expansion, the size required for expansion is larger than the size of the inner cavity of the lining pipe in the initial state, and the mandrel is inconvenient to insert, so that the front end of the mandrel is made into a small-section conical structure.
Preferably, in the above tooling clamp for heat setting of the NiTi alloy intravascular stent, the other end of the mandrel opposite to the tapered structure is provided with a cylindrical clamping rod. The cylindrical clamping rods are used for being connected with the power portion, the cylindrical clamping rods are clamped by the power portion to be pushed into the lining pipe in an inserting mode, and the using effect is better.
It should be noted that the power part is a conventional pneumatic or motor-driven linear displacement reciprocating driving device, which is not the key point of the present invention, and is a conventional structure in the prior art, and is not described herein again.
Additionally, the utility model provides a bolt is hexagon socket head cap screw, is convenient for when twisting, does not produce the interference with other parts.
Preferably, in the above frock clamp for heat setting of the NiTi alloy intravascular stent, the fixing seat is fastened and connected with the base through a bolt. The structural stability of the connection between the fixed seat and the base can be improved; meanwhile, due to the fact that the fixing seat is damaged by stress in the using process, the fixing seat can be conveniently detached and installed, and the purposes of replacement and maintenance are achieved.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a frock clamp for nifi alloy vascular support heat setting has following beneficial effect:
1. the utility model discloses a friction inflation between bushing pipe in dabber and the multiple petal formula drives the circumference expansion of bushing pipe in the multiple petal formula to make the NiTi alloy vascular support of cover above that expanded, reach the influence that does not receive dynamic friction between NiTi alloy vascular support and expansion anchor clamps and harm.
2. After the NiTi alloy intravascular stent is expanded, the NiTi alloy intravascular stent, the multi-petal inner lining tube and the mandrel can be taken down by opening the split type supporting seat, and the two clamping blocks are hinged and connected through the first hinge, so that the opening and the closing of the clamping blocks can be facilitated; meanwhile, the arrangement of the rubber blocks can improve the friction force after clamping, damage to the lining pipe can be prevented, and the clamping stability is stronger.
3. After the NiTi alloy intravascular stent is subjected to heat setting, the mandrel is drawn off, and the NiTi alloy intravascular stent is very easy to take down because the diameter of the multi-petal inner lining tube is smaller than that of the set NiTi alloy intravascular stent; and the NiTi alloy intravascular stents with different sizes can be expanded by replacing the mandrels with different sizes and adjusting the distance between the sliding seat and the fixed seat.
4. The three-section type lining pipe formed by the three arc long plates is convenient to process and simple in structure, and can improve smoothness matched with the mandrel through the arc transition sharp corner, so that smooth insertion of the mandrel is facilitated, and hard friction and extrusion deformation are prevented.
5. The utility model discloses can avoid causing the damage of NiTi alloy intravascular stent because of expansion anchor clamps and the contact of NiTi alloy intravascular stent dynamic friction power, it is extravagant to reduce the material, adopts bushing pipe and dabber in the multi-section formula to realize simple structure during the expansion.
6. The cross section of dabber passes through the circular arc transition for the closed angle, and each limit is circular-arc inside sunken triangle-shaped, and the cross section of interior bushing pipe is the closed angle and passes through the triangle-shaped of circular arc transition for the closed angle, can only guarantee the closed angle of the circular arc transition of dabber and the closed angle contact of the circular arc transition of interior bushing pipe, and each limit can not contact with each limit of interior bushing pipe owing to inside sunken structural feature, reduces frictional force, improves the expansion precision. Meanwhile, the end head is of a conical structure, so that the mandrel can be conveniently inserted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure provided by the present invention;
FIG. 2 is a schematic structural view of the split support base according to the present invention;
fig. 3 is a schematic structural diagram of the connection of the clamping block, the first hinge and the second hinge provided by the present invention;
FIG. 4 is a schematic structural view of the mandrel, the inner liner tube and the NiTi alloy stent set provided by the present invention;
fig. 5 is a schematic structural view of a three-petal type lining tube provided by the present invention;
fig. 6 is a schematic structural diagram of the mandrel provided by the present invention;
FIG. 7 is a cross-sectional view of the inner liner tube according to the present invention;
fig. 8 is a cross-sectional view of the mandrel according to the present invention.
Wherein:
1-NiTi alloy stent;
2-a base;
21-a chute;
3-fixing the base;
4-a sliding seat;
41-a slide block;
5-split supporting seat;
51-a clamping block;
511-grooves;
52-rubber block;
521-a receiving hole;
53-a first hinge;
54-a second hinge;
55-a clamping block;
551-keyhole;
6-lining tube;
61-arc long plate;
7-a mandrel;
71-a cylindrical clamping bar;
8-a baffle plate;
9-bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the attached drawings 1 to 6, the embodiment of the utility model discloses a tool clamp for heat setting of a NiTi alloy intravascular stent, which is used for expanding the size of the NiTi alloy intravascular stent 1; the method comprises the following steps: the device comprises a base 2, a fixed seat 3, a sliding seat 4, a split type supporting seat 5, a lining pipe 6 and a mandrel 7;
the opposite side surfaces of the base 2 are provided with sliding chutes 21;
the fixed seat 3 is fixed on one side of the base 2 close to the end of the sliding chute 21;
the sliding seat 4 is of an inverted U-shaped structure, the sliding seat 4 is transversely arranged above the base 2, and the inner wall of the opening end is in sliding connection with the sliding chute 21;
the split supporting seats 5 are respectively and correspondingly fixed on the tops of the fixed seat 3 and the sliding seat 4;
the lining pipe 6 is a hollow cylindrical pipe formed by splicing a plurality of arc-shaped long plates 61, and two ends of the lining pipe 6 are clamped between the two split supporting seats 5; the NiTi alloy intravascular stent 1 is sleeved on the lining tube 6;
a mandrel 7 is inserted into the hollow cavity of the inner liner tube 6 for expanding the inner liner tube 6.
In order to further optimize the above technical solution, the split supporting seat 5 comprises a clamping block 51, a rubber block 52 and a first hinge 53; the two clamping blocks 51 are symmetrically fixed on the tops of the fixed seat 3 and the sliding seat 4 respectively, and the binding surfaces of the two clamping blocks 51 are provided with grooves 511; the rubber blocks 52 are fixed in the grooves 511, and the binding surfaces of the two rubber blocks 52 are provided with accommodating holes 521 for clamping the lining pipe 6; the movable end of the first hinge 53 is fixedly connected with the side walls of the two clamping blocks 51 on the same side.
In order to further optimize the above technical solution, the split supporting base 5 further comprises a second hinge 54 and a clamping block 55; one movable end of the second hinge 54 is fixed on one clamping block 51 and is opposite to the position of the first hinge 53, and the other movable end of the second hinge 54 is provided with a clamping hole; the clamping block 55 is fixed on the other clamping block 51 and is used for clamping with the clamping hole, and the clamping block 55 is provided with a locking hole 551.
In order to further optimize the above technical scheme, still include baffle 8, baffle 8 is fixed at fixing base 3 top, and with split type supporting seat 5 keep away from the one side laminating of sliding seat 4.
In order to further optimize the above technical solution, the end of the sliding seat 4 has a sliding block 41 cooperating with the sliding slot 21.
In order to further optimize the technical scheme, a threaded hole in the vertical direction is formed in the sliding seat 4, and the bolt 9 penetrates through the threaded hole and can be abutted to the top surface of the base 2.
In order to further optimize the above technical solution, bolts 9 are respectively located at both sides of the split support seat 5 at the top of the sliding seat 4.
Referring to fig. 7, the inner lining pipe 6 is formed by splicing three arc-shaped long plates 61, and the cross section of the inner lining pipe 6 is triangular with sharp corners passing through arcs.
Referring to the attached drawing 8, the cross section of the mandrel 7 is a triangle with sharp corners transiting through arcs and all sides of the triangle sinking inwards in an arc shape, and one end of the mandrel 7 is of a conical structure.
In order to further optimize the above solution, the mandrel 7 has a cylindrical clamping rod 71 at the end opposite to the conical structure.
In order to further optimize the technical scheme, the fixed seat 3 and the base 2 are fixedly connected through a bolt 9.
The utility model discloses a theory of operation does:
the three arc-shaped long plates 61 are spliced to form the lining tube 6 with the hollow cavity, and the NiTi alloy intravascular stent 1 is sleeved on the three-petal type lining tube 6.
The sliding block 41 for adjusting the sliding seat 4 slides in the sliding groove 21, when the distance between the fixed seat 3 and the sliding seat 4 is adjusted to be proper, the bolt 9 is screwed, so that the end head of the bolt tightly props against the top surface of the base 2, and the sliding seat 4 is fixed.
The two clamping blocks 51 of the split support base 5 are opened, the two ends of the lining pipe 6 are placed between the two clamping blocks 51, the clamping blocks 51 are buckled, the two ends of the lining pipe 6 are clamped in the accommodating holes 521 formed by the two rubber blocks 52, and one end of the lining pipe 6 is tightly pressed against the baffle plate 8. The end of the second hinge 54 with the clamping hole is clamped and fixed with the clamping block 55, and the two clamping blocks 51 are fixed, and can also pass through the lock hole 551 through a lockset to be further locked and fixed.
One end of the mandrel 7 with a conical structure is inserted into the cavity of the inner lining tube 6 from one side of the sliding seat 4, the power part clamps the cylindrical clamping rod 71, the mandrel 7 is pushed towards the direction of the fixed seat 3, and the frictional expansion between the mandrel 7 and the three-petal inner lining tube 6 drives the arc-shaped long plate 61 to expand circumferentially, so that the NiTi alloy intravascular stent 1 sleeved on the mandrel is expanded.
After the NiTi alloy intravascular stent 1 is expanded, the second hinge 54 is opened, the split supporting seat 5 is opened, and then the NiTi alloy intravascular stent 1, the lining tube 6 and the mandrel 7 can be taken down, after the NiTi alloy intravascular stent 1 is subjected to heat setting, the mandrel 7 is pulled away, and the NiTi alloy intravascular stent 1 is extremely easy to take down because the diameter of the lining tube 6 is smaller than that of the set NiTi alloy intravascular stent 1.
The NiTi alloy intravascular stents 1 with different sizes can be expanded by replacing the mandrels 7 with different sizes and adjusting the distance between the sliding seat 4 and the fixed seat 3.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A NiTi alloy is frock clamp for vascular stent heat setting, is used for carrying on the size expansion to NiTi alloy vascular stent (1); it is characterized by comprising: the device comprises a base (2), a fixed seat (3), a sliding seat (4), a split type supporting seat (5), a lining pipe (6) and a mandrel (7);
the opposite side surfaces of the base (2) are provided with sliding grooves (21);
the fixed seat (3) is fixed on one side, close to the end of the sliding groove (21), of the base (2);
the sliding seat (4) is of an inverted U-shaped structure, the sliding seat (4) is transversely arranged above the base (2), and the inner wall of the opening end of the sliding seat is in sliding connection with the sliding groove (21);
the split supporting seats (5) are respectively and correspondingly fixed on the tops of the fixed seat (3) and the sliding seat (4);
the lining pipe (6) is a hollow cylindrical pipe formed by splicing a plurality of arc-shaped long plates (61), and two ends of the lining pipe (6) are clamped between the two split supporting seats (5); the NiTi alloy intravascular stent (1) is sleeved on the lining tube (6);
the mandrel (7) is inserted into the hollow cavity of the lining pipe (6) and is used for expanding the lining pipe (6).
2. A tooling fixture for heat setting of a NiTi alloy stent according to claim 1, wherein the split supporting seat (5) comprises a clamping block (51), a rubber block (52) and a first hinge (53); the two clamping blocks (51) are symmetrically fixed at the tops of the fixed seat (3) and the sliding seat (4) respectively, and the binding surfaces of the two clamping blocks (51) are provided with grooves (511); the rubber blocks (52) are fixed in the grooves (511), and the binding surfaces of the two rubber blocks (52) are provided with accommodating holes (521) for clamping the lining pipe (6); the movable end of the first hinge (53) is respectively and fixedly connected with the side walls of the two clamping blocks (51) on the same side.
3. The tooling clamp for heat setting of the NiTi alloy intravascular stent as claimed in claim 2, wherein the split supporting seat (5) further comprises a second hinge (54) and a clamping block (55); one movable end of the second hinge (54) is fixed on one clamping block (51) and is opposite to the first hinge (53), and the other movable end of the second hinge (54) is provided with a clamping hole; the clamping block (55) is fixed on the other clamping block (51) and is used for being clamped with the clamping hole, and the clamping block (55) is provided with a locking hole (551).
4. A tooling clamp for heat setting of a NiTi alloy stent according to any one of claims 1 to 3, further comprising a baffle (8), wherein the baffle (8) is fixed on the top of the fixed seat (3) and attached to one surface of the split support seat (5) away from the sliding seat (4).
5. A tooling clamp for heat setting of a NiTi alloy stent as claimed in claim 1, wherein the end of the sliding seat (4) is provided with a sliding block (41) which is matched with the sliding groove (21).
6. The tooling clamp for heat setting of the NiTi alloy intravascular stent as claimed in claim 1, wherein the sliding seat (4) is provided with a threaded hole in the vertical direction, and a bolt (9) passes through the threaded hole and can be abutted against the top surface of the base (2).
7. The tooling clamp for heat setting of the NiTi alloy intravascular stent as claimed in claim 1, wherein the inner lining tube (6) is formed by splicing three arc-shaped long plates (61), and the cross section of the inner lining tube (6) is triangular with sharp corners transiting through arcs.
8. The tooling clamp for heat setting of the NiTi alloy intravascular stent as claimed in claim 7, wherein the cross section of the mandrel (7) is a triangle with sharp corners transiting through an arc and all sides being arc-shaped and inwards recessed; the end head of one end of the mandrel (7) is of a conical structure.
9. A tool clamp for heat setting of a NiTi alloy vascular stent according to claim 8, characterized in that the other end of the mandrel (7) opposite to the conical structure is provided with a cylindrical clamping rod (71).
10. The tooling clamp for heat setting of the NiTi alloy intravascular stent as claimed in claim 1, wherein the fixed seat (3) and the base (2) are fixedly connected through a bolt (9).
CN201920751199.XU 2019-05-23 2019-05-23 Fixture for heat setting of NiTi alloy intravascular stent Expired - Fee Related CN210098674U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920751199.XU CN210098674U (en) 2019-05-23 2019-05-23 Fixture for heat setting of NiTi alloy intravascular stent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920751199.XU CN210098674U (en) 2019-05-23 2019-05-23 Fixture for heat setting of NiTi alloy intravascular stent

Publications (1)

Publication Number Publication Date
CN210098674U true CN210098674U (en) 2020-02-21

Family

ID=69560878

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920751199.XU Expired - Fee Related CN210098674U (en) 2019-05-23 2019-05-23 Fixture for heat setting of NiTi alloy intravascular stent

Country Status (1)

Country Link
CN (1) CN210098674U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113441612A (en) * 2021-07-02 2021-09-28 内蒙古工业大学 Fixture for heat setting of NiTi alloy intravascular stent
CN113441613A (en) * 2021-07-12 2021-09-28 内蒙古工业大学 Clamping tool for heat setting of vascular stent
CN113857399A (en) * 2021-09-14 2021-12-31 北京永益润成科技有限公司 Blood vessel support heat setting positioner
CN114101504A (en) * 2021-10-15 2022-03-01 内蒙古工业大学 Universal tool clamp for heat setting of metal vascular stent
CN114256647A (en) * 2021-11-12 2022-03-29 国网浙江省电力有限公司温州市洞头区供电公司 Wiring device for alternating current withstand voltage test of indoor circuit breaker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113441612A (en) * 2021-07-02 2021-09-28 内蒙古工业大学 Fixture for heat setting of NiTi alloy intravascular stent
CN113441613A (en) * 2021-07-12 2021-09-28 内蒙古工业大学 Clamping tool for heat setting of vascular stent
CN113857399A (en) * 2021-09-14 2021-12-31 北京永益润成科技有限公司 Blood vessel support heat setting positioner
CN113857399B (en) * 2021-09-14 2024-07-16 北京永益润成科技有限公司 Vascular stent heat setting positioner
CN114101504A (en) * 2021-10-15 2022-03-01 内蒙古工业大学 Universal tool clamp for heat setting of metal vascular stent
CN114101504B (en) * 2021-10-15 2024-01-23 内蒙古工业大学 Universal fixture for heat setting of metal vascular stent
CN114256647A (en) * 2021-11-12 2022-03-29 国网浙江省电力有限公司温州市洞头区供电公司 Wiring device for alternating current withstand voltage test of indoor circuit breaker

Similar Documents

Publication Publication Date Title
CN210098674U (en) Fixture for heat setting of NiTi alloy intravascular stent
KR101468399B1 (en) Installation/processing systems and methods of using the same
JP2019171885A (en) Method of manufacturing pipe joint
RU2604373C2 (en) Expander head for expansion tools and expander tool equipped with this head
US5640879A (en) Method and device for expanding metal tubes
US3503244A (en) Pipe holding mechanism
CN112549522B (en) Manufacturing equipment and method for lining plastic pipe
CN201799870U (en) Bearing outer ring tooling clamp
CN108971364A (en) Flareless inward turning single lead screw ex truding briquetting machine and its expander
CN111360751A (en) Method for pulling out inner embedded bushing
CN112012671A (en) Anti-deformation elastic sleeve centralizer
CN210115475U (en) Core expanding device and internal support clamp
CN209811745U (en) Hub inclined sliding block central type clamp
CN219703254U (en) A device that contracts for side's pipe end
US2691799A (en) Injection molding machine
WO2006060118A1 (en) Transition forming machine
CN110435124B (en) Plastic pipe fitting opening expanding machine and working method
KR200456158Y1 (en) Sealing Member for Cooling Water Passage of Mold
CN208810959U (en) Flareless inward turning single lead screw ex truding briquetting machine and its expander
CN105964816A (en) Tube expander
CN215408543U (en) Device is got to water brill concrete core breakage clamp
CN110479942B (en) Riveting pin tool for assembling vascular closure clamp
CN110369624B (en) Expand tube unable adjustment base
CN221018734U (en) Adjustable outer expansion turning clamp
CN216373320U (en) Hose shaping mould

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200221

CF01 Termination of patent right due to non-payment of annual fee