CN217377945U - Heat treatment tool for valve support - Google Patents
Heat treatment tool for valve support Download PDFInfo
- Publication number
- CN217377945U CN217377945U CN202220290176.5U CN202220290176U CN217377945U CN 217377945 U CN217377945 U CN 217377945U CN 202220290176 U CN202220290176 U CN 202220290176U CN 217377945 U CN217377945 U CN 217377945U
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- Prior art keywords
- heat treatment
- treatment tool
- section
- matching section
- lock
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 28
- 230000007704 transition Effects 0.000 claims description 5
- 238000012548 In-process support Methods 0.000 abstract 1
- 210000003709 heart valve Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 210000001765 aortic valve Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 210000004115 mitral valve Anatomy 0.000 description 2
- 210000003102 pulmonary valve Anatomy 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000000591 tricuspid valve Anatomy 0.000 description 2
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 210000002376 aorta thoracic Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 238000007675 cardiac surgery Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model relates to a heat treatment tool for a valve stent, which belongs to the technical field of medical instruments. The special-shaped cylindrical lock core comprises a core shaft and a plurality of lock rings, wherein the core shaft comprises a leading-in section and a lock core matching section, the leading-in section is provided with a leading-in conical surface and a leading-in cylindrical surface, the lock core matching section is in a special-shaped cylindrical shape, and the diameter of the lock core matching section is smaller than that of the leading-in cylindrical surface; the catch is the ring form, and the inner wall and the lock core cooperation section cooperation of catch, and relative lock core cooperation section axial slip, the outer wall of catch is equipped with a plurality of guide convex blocks, forms the support spacing groove between the adjacent guide convex block. The utility model discloses a structure of dabber and a plurality of catch combination avoids heat treatment in-process support deformation as heat treatment frock, improves the yield, improves the commonality of frock by a wide margin.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to valve is heat treatment frock for support.
Background
Heart valves, such as the mitral, tricuspid, aortic, and pulmonary valves, are damaged by disease or aging, causing problems with the proper functioning of the valve. The problems caused by heart valves are usually in one or two forms: (1) valvular stenosis, in which the valve cannot be fully opened or the opening is too small, resulting in restricted blood flow; (2) the valve is not fully closed and blood leaks back through the non-coaptable valve when the valve should close. For patients with valve regurgitation or calcification of valve stenosis, heart valve replacement is a routine surgical procedure. The full sternotomy of the median incision is the most commonly used classic operation approach in the cardiac surgery valve operation, the traditional operation approach has large trauma, the postoperative rehabilitation of patients is slow, and the postoperative complications are many.
Today, percutaneous transcatheter (or transluminal) delivery techniques for replacing heart valves can solve the problems associated with traditional open procedures. In such methods, a valve prosthesis is compacted for delivery in a catheter and then advanced through an opening, e.g., the femoral artery, and through the descending aorta to the heart, where the prosthesis is deployed in the annulus (e.g., the aortic valve annulus).
Prosthetic heart valves of various types and configurations are used in percutaneous valve surgery to replace diseased native heart valves. The actual shape and configuration of any particular prosthetic heart valve depends to some extent on the valve being replaced (i.e., mitral valve, tricuspid valve, aortic valve, or pulmonary valve).
One type of valved stent frame is made of a self-expanding material, typically a nickel-based alloy, which, after crimping and compression, can be reduced to a diameter suitable for loading into a delivery catheter, delivered through the delivery catheter to a desired location, and then pushed out of the delivery catheter, automatically expanding to a larger diameter by the properties of the self-expanding material, allowing deployment in a human native heart valve, completing the replacement.
The process of making a stent framework from a self-expanding material typically requires the following: firstly, cutting a self-expanding material pipe by laser; secondly, performing heat treatment setting on the cut small-diameter frame for a plurality of times, and expanding the small-diameter frame into a bracket frame with required size; thirdly, carrying out sand blasting treatment on the surface of the bracket frame; fourthly, the support frame is subjected to electrochemical polishing; and fifthly, detecting the performance of the bracket frame such as various size parameters, compression resistance, rebound and the like. In the prior art, in the second step of heat treatment and shaping of the small-diameter frame, the adopted tool is generally a common bar-shaped metal bar, and the small-diameter frame is stretched and sleeved on the bar-shaped metal bar and is placed in heat treatment equipment. However, because the stent frame is generally provided with a plurality of rhombic or hexagonal net-shaped structures, the rhombic or hexagonal net-shaped structures cannot keep the shape during design during heat treatment and shaping, and the shape is easily distorted after multiple heat treatments, so that the problems that the shaping size does not meet the required size, the local stress is concentrated, the compression resistance and resilience performance are reduced, the yield is low and the like are caused. Simultaneously, to the support frame of different design size and shape demands, need produce different frock with the adaptation demand, the commonality is relatively poor. Therefore, the technical problem of how to avoid deformation, improve yield, and obtain a general heat treatment tool in the heat treatment process of the valve stent at present is urgently needed to be solved in the technical field.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in how to overcome the problem among the prior art to provide a heat treatment frock for valve support.
In order to solve the above problems, the technical solution adopted by the present invention is to provide a heat treatment tool for a valve stent, comprising a mandrel and a plurality of locking rings; the mandrel comprises an introduction section and a lock cylinder matching section which are adjacent, the periphery of the introduction section is sequentially provided with an introduction conical surface and an introduction cylindrical surface along the axial direction of the mandrel, and the introduction cylindrical surface is arranged between the lock cylinder matching section and the introduction conical surface; the lock ring is annularly sleeved on the lock cylinder matching section, the lock cylinder matching section is in a special-shaped cylindrical shape, the inner wall of the lock ring is matched with the outer wall of the lock cylinder matching section, and the lock ring axially slides relative to the lock cylinder matching section; the outer wall of the locking ring is provided with a plurality of guide lugs, and a support limiting groove is formed between every two adjacent guide lugs.
Further, the diameter of the lock cylinder matching section is smaller than that of the guiding cylindrical surface.
Furthermore, a transition arc surface is arranged between the guiding conical surface and the guiding cylindrical surface.
Furthermore, the guide projection is in a trapezoidal convex block shape.
Furthermore, the guide convex block is in a triangular convex block shape.
Furthermore, the guide projection is in a trapezoid convex block shape, and the shorter bottom side of the two parallel bottom sides of the trapezoid is in an arc shape.
Further, the locking ring is provided with various specifications.
Further, the locking ring may be provided with a variety of outer diameters.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a structure that dabber and a plurality of catch make up is as heat treatment frock, can improve the commonality of frock by a wide margin, to the support frame of the valve of different shapes, size demand, through changing the catch, only need locate the dabber with corresponding catch combination cover, but the adaptation. For non-cylindrical shaped stent frames (e.g., waisted), combinations of different diameter staples may also be used to fit.
Secondly, the guide convex blocks on the surface of the locking ring can limit the diamond-shaped or hexagonal support rods of the support frame, and the support rods are positioned in the limiting grooves, so that the support frame is prevented from being deformed by mistake after heat treatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a heat treatment tool for a valve stent according to a first embodiment of the present invention;
fig. 2 is a schematic perspective view of a locking ring according to an embodiment of the present invention;
description of reference numerals: 1. the lock core comprises a core shaft, 2 a lock ring, 3 a leading-in section, 4 a lock core matching section, 5 a leading-in conical surface, 6 a leading-in cylindrical surface, 7 a guiding convex block, 8 a support limiting groove, 9 a transition arc surface.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the technical solution of the present invention is to provide a heat treatment tool for a valve stent, which comprises a mandrel 1 and a plurality of locking rings 2; the core shaft 1 comprises a leading-in section 3 and a lock cylinder matching section 4, wherein the leading-in section 3 is provided with a leading-in conical surface 5 and a leading-in cylindrical surface 6 which are adjacent, and the leading-in cylindrical surface 6 is arranged between the lock cylinder matching section 4 and the leading-in conical surface 5; the lock ring 2 is annularly sleeved on the lock cylinder matching section 4, the lock cylinder matching section 4 is in a special-shaped cylindrical shape, the inner wall of the lock ring 2 is matched with the outer wall of the lock cylinder matching section 4, and the lock ring 2 axially slides relative to the lock cylinder matching section 4; the outer wall of the locking ring 2 is provided with a plurality of guide lugs 7, and a bracket limiting groove 8 is formed between the adjacent guide lugs 7. The diameter of the lock core matching section 4 is smaller than that of the guiding-in cylindrical surface 6; a transition arc surface 9 is arranged between the leading-in conical surface 5 and the leading-in cylindrical surface 6. The guide convex block 7 is in a trapezoid convex block shape, or the guide convex block 7 is in a triangle convex block shape, or the guide convex block 7 is in a trapezoid convex block shape, and the short bottom side of the two parallel bottom sides of the trapezoid is in an arc shape. The locking ring 2 is provided with a plurality of specifications. The locking ring 2 is provided with various outer diameters.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The first embodiment is as follows: the heat treatment tool for the valve stent shown in fig. 1-2 comprises: the lock comprises a core shaft 1 and a plurality of lock rings 2, wherein the core shaft 1 comprises a leading-in section 3 and a lock cylinder matching section 4, the leading-in section 3 is provided with a leading-in conical surface 5 and a leading-in cylindrical surface 6, the lock cylinder matching section 4 is in a special-shaped cylindrical shape, and the diameter of the lock cylinder matching section 4 is smaller than that of the leading-in cylindrical surface 6; the catch 2 is the ring form, and the inner wall of catch 2 cooperatees with lock core cooperation section 4, and relative 4 endwise slip of lock core cooperation section, and the outer wall of catch is equipped with a plurality of guide projection 7, forms support spacing groove 8 between the adjacent guide projection 7.
In this embodiment, a transition arc surface 9 is provided between the guiding cone surface 5 and the guiding cylinder surface 6.
In the present embodiment, the guide protrusion 7 has a trapezoidal shape.
Example two: the guide projection 7 is in a triangular convex block shape, and the rest is unchanged.
Example three: the guide convex block 7 is in a trapezoid convex block shape, one side of the short edge in two trapezoidal parallel bottom edges is in a circular arc shape, and the other sides are unchanged.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.
Claims (8)
1. A heat treatment tool for a valve stent is characterized by comprising a mandrel and a plurality of lock rings; the mandrel comprises an introduction section and a lock cylinder matching section which are adjacent, the periphery of the introduction section is sequentially provided with an introduction conical surface and an introduction cylindrical surface along the axial direction of the mandrel, and the introduction cylindrical surface is arranged between the lock cylinder matching section and the introduction conical surface; the lock ring is annularly sleeved on the lock cylinder matching section, the lock cylinder matching section is in a special-shaped cylindrical shape, the inner wall of the lock ring is matched with the outer wall of the lock cylinder matching section, and the lock ring axially slides relative to the lock cylinder matching section; the outer wall of the locking ring is provided with a plurality of guide lugs, and a bracket limiting groove is formed between adjacent guide lugs.
2. The heat treatment tool for the valve stent according to claim 1, wherein the diameter of the lock cylinder matching section is smaller than that of the guide-in cylindrical surface.
3. The heat treatment tool for the valve stent according to claim 1, wherein a transition arc surface is arranged between the guiding conical surface and the guiding cylindrical surface.
4. The heat treatment tool for the valve stent according to claim 1, wherein the guide projection is in a trapezoidal projection shape.
5. The heat treatment tool for the valve stent according to claim 1, wherein the guide projection is in a triangular projection shape.
6. The heat treatment tool for the valve stent according to claim 1, wherein the guide projection is in a trapezoidal projection shape, and the shorter bottom side of two parallel bottom sides of the trapezoid is in an arc shape.
7. The heat treatment tool for the valve stent according to claim 1, wherein the locking ring is provided with a plurality of specifications.
8. The heat treatment tool for the valve stent according to claim 7, wherein the locking ring is provided with a plurality of outer diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220290176.5U CN217377945U (en) | 2022-02-14 | 2022-02-14 | Heat treatment tool for valve support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220290176.5U CN217377945U (en) | 2022-02-14 | 2022-02-14 | Heat treatment tool for valve support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217377945U true CN217377945U (en) | 2022-09-06 |
Family
ID=83098676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220290176.5U Active CN217377945U (en) | 2022-02-14 | 2022-02-14 | Heat treatment tool for valve support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217377945U (en) |
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2022
- 2022-02-14 CN CN202220290176.5U patent/CN217377945U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200032 No. 136, Xuhui District Medical College, Shanghai Patentee after: ZHONGSHAN HOSPITAL, FUDAN University Country or region after: China Patentee after: Shanghai Yingtai Medical Equipment Co.,Ltd. Address before: 200032 No. 136, Xuhui District Medical College, Shanghai Patentee before: ZHONGSHAN HOSPITAL, FUDAN University Country or region before: China Patentee before: SHANGHAI KINDLY MEDICAL INSTRUMENTS Co.,Ltd. |
|
| CP03 | Change of name, title or address |