CN115737226A - Preparation method of cavity support - Google Patents
Preparation method of cavity support Download PDFInfo
- Publication number
- CN115737226A CN115737226A CN202211480396.5A CN202211480396A CN115737226A CN 115737226 A CN115737226 A CN 115737226A CN 202211480396 A CN202211480396 A CN 202211480396A CN 115737226 A CN115737226 A CN 115737226A
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- spiral groove
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- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 27
- 239000000126 substance Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 28
- 230000003044 adaptive effect Effects 0.000 abstract description 6
- 230000003902 lesion Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000011295 pitch Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000003445 biliary tract Anatomy 0.000 description 2
- 210000003238 esophagus Anatomy 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 210000003708 urethra Anatomy 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 210000004081 cilia Anatomy 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a preparation method of a cavity support, and relates to the technical field of medical appliances. The preparation method of the cavity support comprises the following steps: preparing a columnar mold, wherein a first spiral groove is formed in the side wall surface of the columnar mold; winding along the first spiral groove to form a first spiral pipe; fixing the first spiral pipe to keep the first spiral pipe in a preset shape; and injecting the substance to be solidified into the first spiral pipe. The preparation method of the cavity support can form a first spiral pipe by winding a first spiral groove on a columnar mold, and the first spiral pipe is fixed in a subsequent mode to keep a preset shape; the material to be solidified is injected into the first spiral pipe, so that the shape and size of the prepared cavity support can be adjusted and elasticity can be kept before the material to be solidified is solidified, and the cavity support is convenient to install in cavities with different structures; and the prepared cavity support can provide stable support after the substance to be solidified is solidified so as to carry out structural adaptive deformation, namely the prepared cavity support has the structural adaptive characteristic for the complex lesion cavity.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a method for preparing a cavity bracket.
Background
In some cases, a stent is used in a natural lumen of a human body such as a trachea, an esophagus, a biliary tract or a urethra due to a lesion or an invasive treatment. The partial cavity bracket adopts a barrel-shaped bracket, but the size of the barrel-shaped bracket is difficult to adjust, the adaptability to the internal structure of the cavity is lacked, the air and liquid flow is not smooth when the bracket is used due to the larger wall thickness, and the barrel-shaped bracket also easily blocks the cilia movement and mucus exchange of partial cavity in the coverage area of the bracket; part of the cavity stent adopts memory alloy to form an integral reticular stent, but the memory alloy can form larger extrusion force, easily induces the growth of epithelial tissues of the trachea to form granulation, and increases the difficulty of removing the cavity stent and the risk in operation; some cavity supports adopt a braided net support, and the structure is kept fixed by the mutual contact of braided wires, but the support is difficult to deform and is difficult to deform in structural adaptability.
Disclosure of Invention
The invention mainly aims to provide a preparation method of a cavity support, so as to conveniently manufacture the cavity support with the structure self-adaptive characteristic.
In order to realize the aim, the preparation method of the cavity bracket provided by the invention comprises the following steps: preparing a columnar mold, wherein a first spiral groove is formed in the side wall surface of the columnar mold; a first spiral pipe is formed by winding along the first spiral groove; fixing the first spiral pipe to keep the first spiral pipe in a preset shape; and injecting a substance to be solidified into the first spiral pipe.
Optionally, the step of preparing the columnar mold further comprises: a second spiral groove is formed in the side wall surface of the columnar mold, and the rotating direction of the second spiral groove is opposite to that of the first spiral groove; the preparation method of the cavity channel bracket also comprises the following steps: and a second spiral pipe is formed by winding along the second spiral groove, so that at least one abutting point is formed between the second spiral pipe and the first spiral pipe.
Optionally, the step of securing the first coilpipe to maintain the first coilpipe in a predetermined configuration further comprises: and fixing the abutting points to form a polygonal structure, wherein the number of sides of the polygonal structure is more than or equal to four.
Optionally, the step of preparing the columnar mold further includes: and at least two spiral groove groups are arranged on the side wall surface of the columnar mold, the spiral groove groups are arranged at intervals along the circumferential direction, and the spiral groove groups comprise the first spiral grooves and/or the second spiral grooves.
Optionally, the step of fixing the abutment point to form the polygonal structure comprises: winding and fixing the abutting point by adopting a circumferential binding line parallel to the circumferential direction of the first spiral pipe; and/or an axial binding line is adopted to wind and fix the butting point in parallel to the axial direction of the first spiral pipe;
optionally, the preparation method of the lumen stent further comprises the following steps: one end of the plug is sleeved into the port of the first spiral pipe, the other end of the plug is sleeved into the port of the second spiral pipe, and the port of the second spiral pipe is opposite to the port of the first spiral pipe.
Optionally, the preparation method of the lumen stent further comprises the following steps: winding a pipe fitting along the first spiral groove to form the first spiral pipe until the first spiral pipe is wound to the intersection point of the first spiral groove and the second spiral groove; and winding the pipe fitting along the second spiral groove to form the second spiral pipe so that the other ends of the first spiral pipe and the second spiral pipe in the axial direction are integrally formed.
Optionally, before the step of fixing the first spiral tube to maintain the first spiral tube in a predetermined shape, the method for preparing the lumen stent further comprises the steps of: the diameter of the first spiral pipe is larger than or equal to that of the first spiral groove; or, the diameter of the first spiral pipe is smaller than that of the first spiral groove.
Optionally, before the step of winding along the first spiral groove to form a first spiral pipe, the step of injecting a substance to be solidified into the first spiral pipe is performed; or, after the step of fixing the first spiral pipe to maintain the first spiral pipe in a preset shape, the step of injecting the material to be solidified into the first spiral pipe is performed.
Optionally, before the step of fixing the first spiral tube to maintain the first spiral tube in a preset shape, the method for preparing the lumen stent further comprises the steps of: the first spiral pipe formed by preliminary fixed winding; separating the first spiral pipe from the cylindrical mold; and adjusting the first spiral pipe to a preset diameter value corresponding to the preset shape.
The technical scheme of the invention is that the preparation method of the cavity channel bracket comprises the following steps: preparing a columnar mold, wherein a first spiral groove is formed in the side wall surface of the columnar mold; winding along the first spiral groove to form a first spiral pipe; fixing the first spiral pipe to keep the first spiral pipe in a preset shape; injecting a substance to be solidified into the first spiral pipe; at the moment, a first spiral pipe can be formed by winding the first spiral groove on the side wall surface of the columnar mold and is fixed in sequence to keep a preset shape; the material to be solidified is injected into the first spiral pipe, so that the shape and size of the prepared cavity support can be adjusted and elasticity can be kept before the material to be solidified is solidified, and the cavity support is convenient to install in cavities with different structures; and the prepared cavity support can provide stable support after the substance to be cured is cured to perform structural adaptive deformation, namely, the prepared cavity support can have the structural adaptive characteristic.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a process diagram of one embodiment of the method for preparing a luminal stent of the present invention.
FIG. 2 is a schematic view of a cylindrical mold according to an embodiment of the present invention.
FIG. 3 is a schematic view of a luminal stent prepared by one embodiment of the method of preparing a luminal stent of the present invention.
Fig. 4 is a schematic view of a luminal stent prepared by another embodiment of the method for preparing a luminal stent of the present invention.
FIG. 5 is a cross-sectional view of the first helical tube in an embodiment of the method of making a lumen stent of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
101 | First |
| 102 | Second |
110 | First |
| 111 | Substance to be solidified | 120 | Second |
| 210 | Circumferential |
220 | Axial |
| 300 | Plug |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if the present invention relates to directional indications (such as up, down, left, right, front, back, 8230; \8230;), the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a method for preparing a cavity bracket, which is convenient for manufacturing the cavity bracket with structure self-adaptability and can be suitable for natural cavities of human bodies such as trachea, esophagus, biliary tract or urethra and the like.
Referring to fig. 1 to 3, in an embodiment of the present invention, the method for preparing the lumen stent includes the following steps:
step S100, preparing a cylindrical mold 100, so that a first spiral groove 101 is formed on a sidewall surface of the cylindrical mold 100; the shape of the cylindrical mold 100 can be shown in fig. 2, the cylindrical mold 100 and the first spiral groove 101 can be manufactured by machining, injection molding, casting, etc.;
step S200, winding along the first spiral groove 101 to form a first spiral pipe 110;
step S300, fixing the first spiral pipe 110 to keep the first spiral pipe 110 in a predetermined shape, for example, fixing members such as a rope, a buckle, a pre-tightening member, and an outer mold may be used for fixing, which is not limited in this embodiment;
step S400, injecting a to-be-cured substance 111 into the first spiral pipe 110, wherein the to-be-cured substance 111 can be set as a to-be-cured fluid or a to-be-cured colloid; the colloid to be cured can be made of one of near infrared light glue and ultraviolet light glue, and the colloid to be cured can be cured by light induction. In addition, the substance 111 to be solidified may be a substance that is solidified by physical means such as magnetism, heat, or the like, and this embodiment does not limit this.
At this time, the cavity channel support preparation method can form the first spiral pipe 110 by winding the first spiral groove 101 on the side wall surface of the columnar mold 100, and then fix the first spiral pipe in the subsequent state to keep the preset shape; the material to be solidified 111 is injected into the first spiral pipe 110, so that the prepared cavity support can be adjusted in shape and size and kept elastic before the material to be solidified, and can be conveniently installed in cavities with different structures; and the prepared cavity support can provide stable support after the substance to be cured is cured to perform structural adaptive deformation, namely, the prepared cavity support can have the structural adaptive characteristic.
Further as an alternative embodiment, referring to fig. 1, the step of preparing the columnar mold 100 further includes: a second spiral groove 102 is formed on the side wall surface of the columnar mold 100, and the rotation direction of the second spiral groove 102 is opposite to that of the first spiral groove 101, so that at this time, at least one intersection point (corresponding to the contact point of the second spiral pipe 120 and the first spiral pipe 110 described below) is formed between the second spiral groove 102 and the first spiral groove 101; the preparation method of the cavity support also comprises the following steps: the second spiral pipe 120 is formed by winding along the second spiral groove 102, so that the second spiral pipe 120 and the first spiral pipe 110 form at least one abutting point.
As a further alternative, the step of securing the first coilpipe 110 such that the first coilpipe 110 maintains the predetermined configuration further comprises: fixing the abutting points to form a polygonal structure. At this time, the method for manufacturing the channel bracket can efficiently manufacture the channel bracket with more supporting positions in the form of the columnar mold 100 and the fixed abutting point.
As a further alternative, the step of securing the first coilpipe 110 such that the first coilpipe 110 maintains the predetermined configuration comprises:
the first spiral pipe 110 is formed in a polygonal structure to maintain a predetermined shape, and the number of sides of the polygonal structure is greater than or equal to four, and the polygonal structure can be formed by the fixing member or the tool holder.
As a further alternative embodiment, the step of preparing the columnar mold 100 further includes: the side wall surface of the columnar mold 100 is provided with at least two spiral groove groups arranged at intervals in the circumferential direction, the spiral groove groups including a first spiral groove 101 and/or a second spiral groove 102. In the scheme, the preparation method of the cavity channel bracket can further improve the preparation of the cavity channel bracket with more supporting points.
As a further alternative, the step of fixing the abutment points to form a polygonal structure comprises: a circumferential binding line 210 is adopted to wind and fix the abutting point in parallel with the circumferential direction of the first spiral pipe 110; and/or, the abutment points may be wound and secured parallel to the axial direction of the first coil 110 using the axial binding wire 220. When the first spiral pipe 110 and the second spiral pipe 120 are wound on the cylindrical mold 100, the space between the first spiral pipe 110 and the second spiral pipe 120 and the cylindrical mold 100 is narrow, the mode that the circumferential binding line 210 and the axial binding line 220 are wound and fixed is adopted, the circumferential binding line 210 and the axial binding line 220 conveniently penetrate through the narrow space between the first spiral pipe 110 and the second spiral pipe 120 and the cylindrical mold 100, the influence caused by the narrow space between the cylindrical mold 100 and the first spiral pipe 110 and between the cylindrical mold 120 and the second spiral pipe 120 can be reduced, and the cavity channel support preparation method keeps high preparation efficiency.
Further as an optional embodiment, the method for preparing the lumen stent further comprises the following steps: one end of the plug 300 is sleeved into the port of the first spiral pipe 110, the other end of the plug 300 is sleeved into the port of the second spiral pipe 120, and the port of the second spiral pipe 120 is opposite to the port of the first spiral pipe 110. At the moment, the preparation method of the cavity channel bracket can effectively block the substance 111 to be solidified, and the leakage of the substance 111 to be solidified is avoided.
Further as an optional embodiment, the method for preparing the lumen stent further comprises the following steps: winding a pipe along the first spiral groove 101 to form a first spiral pipe 110 until the first spiral groove 101 and the second spiral groove 102 are wound to the intersection point; then, the pipe is wound along the second spiral groove 102 to form a second spiral pipe 120, so that the other ends of the first spiral pipe 110 and the second spiral pipe 120 in the axial direction are integrally formed; specifically, the specific lengths of the first spiral groove 101 and the second spiral groove 102 can be selected, and the specific length can be set to be an integral multiple of 0.25 thread pitches, specifically including an integral number of thread pitches and 0.25 thread pitches, or an integral number of thread pitches and 0.75 thread pitches, so that the first spiral pipe 110 and the second spiral pipe 120 which are integrally formed by winding the same pipe in the method for preparing the lumen stent further improve the manufacturing efficiency.
As a further alternative embodiment, prior to the step of securing the first coil 110 such that the first coil 110 maintains the predetermined configuration, the method of preparing a channel support further includes the steps of: the diameter of the first spiral pipe 110 is larger than or equal to the diameter of the first spiral groove 101; alternatively, the diameter of the first helical tube 110 is made smaller than the diameter of the first helical groove 101. Specifically, the method for manufacturing the luminal stent further comprises, before the step of fixing the first spiral tube 110 such that the first spiral tube 110 maintains the predetermined configuration, the steps of: a first spiral pipe 110 formed by preliminary fixing and winding; disengaging the first spiral pipe 110 from the cylindrical mold 100; the first spiral pipe 110 is adjusted to a predetermined diameter value corresponding to a predetermined shape, even if the diameter of the first spiral pipe 110 is greater than or equal to the diameter of the first spiral groove 101 or the diameter of the first spiral pipe 110 is smaller than the diameter of the first spiral groove 101. In the scheme, the diameter of the cavity channel bracket can be roughly determined by the columnar mold 100, and then the diameter value is finely adjusted after the cavity channel bracket is demoulded, so that the diameter adjustment of the cavity channel bracket is more stable and controllable, and the specification number of the columnar mold 100 can be reduced. The preliminary fixing and fixing of the first spiral pipe 110 to maintain the first spiral pipe 110 in a predetermined shape may be performed by adjusting the winding force of the circumferential binding line 210 and the axial binding line 220.
As a further alternative embodiment, before the step of winding along the first spiral groove 101 to form the first spiral pipe 110, a step of injecting the material to be solidified 111 into the first spiral pipe 110 is performed; at this time, the filling degree of the injected substance to be solidified 111 is increased, which is beneficial to binding of the binding member and also beneficial to improving the manufacturing efficiency by injecting the step of injecting the substance to be solidified 111 and preparing the columnar mold 100. As an alternative embodiment, the step of injecting the material to be solidified 111 inside the first spiral pipe 110 is performed after the step of fixing the first spiral pipe 110 so that the first spiral pipe 110 maintains a preset shape, avoiding the first spiral pipe 110 from being deformed by the injection power of the material to be solidified 111.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, which are within the technical spirit of the present invention, are included in the scope of the present invention.
Claims (10)
1. A preparation method of a cavity channel bracket is characterized by comprising the following steps:
preparing a columnar mold, wherein a first spiral groove is formed in the side wall surface of the columnar mold;
a first spiral pipe is formed by winding along the first spiral groove;
fixing the first spiral pipe to enable the first spiral pipe to keep a preset shape;
and injecting a substance to be solidified into the first spiral pipe.
2. The method of preparing a luminal stent of claim 1 wherein the step of preparing a cylindrical mold further comprises: a second spiral groove is formed in the side wall surface of the cylindrical mold, and the rotating direction of the second spiral groove is opposite to that of the first spiral groove;
the preparation method of the cavity channel bracket also comprises the following steps: and a second spiral pipe is formed by winding along the second spiral groove, so that at least one abutting point is formed between the second spiral pipe and the first spiral pipe.
3. The method of preparing a luminal stent as described in claim 2, said step of securing said first helical tube such that said first helical tube maintains a predetermined configuration further comprising:
and fixing the abutting points to form a polygonal structure, wherein the number of sides of the polygonal structure is more than or equal to four.
4. The method of preparing a luminal stent as defined in claim 3 wherein the step of preparing a cylindrical mold further comprises:
and at least two spiral groove groups are arranged on the side wall surface of the columnar mold, the spiral groove groups are arranged at intervals along the circumferential direction, and the spiral groove groups comprise the first spiral grooves and/or the second spiral grooves.
5. The method of preparing a luminal stent as described in claim 3 or 4 wherein said step of securing said abutment points to form said polygonal structure comprises:
winding and fixing the abutting point by adopting a circumferential binding line parallel to the circumferential direction of the first spiral pipe;
and/or winding and fixing the abutting joint by adopting an axial binding line parallel to the axial direction of the first spiral pipe.
6. The method for preparing a luminal stent as defined in claim 3 or 4 wherein said method for preparing a luminal stent further comprises the steps of:
one end of the plug is sleeved into the port of the first spiral pipe, the other end of the plug is sleeved into the port of the second spiral pipe, and the port of the second spiral pipe is opposite to the port of the first spiral pipe.
7. The method for preparing a luminal stent as defined in claim 6 wherein said method for preparing a luminal stent further comprises the steps of:
winding a pipe fitting along the first spiral groove to form the first spiral pipe until the first spiral pipe is wound to the intersection point of the first spiral groove and the second spiral groove; and winding the pipe fitting along the second spiral groove to form the second spiral pipe, so that the other ends of the first spiral pipe and the second spiral pipe in the axial direction are integrally formed.
8. The method of preparing a channel support according to claim 1, wherein prior to said step of securing said first coil such that said first coil maintains a predetermined configuration, said method further comprises the steps of:
the diameter of the first spiral pipe is larger than or equal to that of the first spiral groove;
or, the diameter of the first spiral pipe is smaller than that of the first spiral groove.
9. The method for preparing a channel support according to claim 1, wherein the step of injecting a substance to be solidified into the first spiral tube is performed before the step of winding the first spiral tube along the first spiral groove; or, after the step of fixing the first spiral pipe to maintain the first spiral pipe in a preset shape, the step of injecting the material to be solidified into the first spiral pipe is performed.
10. The method of preparing a luminal stent as defined in claim 1 wherein prior to said step of securing said first helical tube such that said first helical tube maintains a predetermined configuration, said method of preparing a luminal stent further comprises the steps of:
the first spiral pipe formed by preliminary fixed winding;
disengaging the first helical tube from the cylindrical mold;
and adjusting the first spiral pipe to a preset diameter value corresponding to the preset shape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211480396.5A CN115737226A (en) | 2022-11-23 | 2022-11-23 | Preparation method of cavity support |
| PCT/CN2022/137693 WO2024108661A1 (en) | 2022-11-23 | 2022-12-08 | Method for preparing intraluminal stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211480396.5A CN115737226A (en) | 2022-11-23 | 2022-11-23 | Preparation method of cavity support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115737226A true CN115737226A (en) | 2023-03-07 |
Family
ID=85336734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211480396.5A Pending CN115737226A (en) | 2022-11-23 | 2022-11-23 | Preparation method of cavity support |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115737226A (en) |
| WO (1) | WO2024108661A1 (en) |
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| CN113101022A (en) * | 2021-05-31 | 2021-07-13 | 赵晓辉 | Preparation method of specific in-vivo lumen implant |
| CN216365443U (en) * | 2021-08-11 | 2022-04-26 | 深圳市美好创亿医疗科技股份有限公司 | Medical cavity support |
| CN216535653U (en) * | 2021-08-25 | 2022-05-17 | 深圳市美好创亿医疗科技股份有限公司 | Cavity support |
| CN114407253A (en) * | 2021-12-15 | 2022-04-29 | 南方科技大学 | Cavity channel structure based on soft demolding and preparation method thereof |
| CN115105273A (en) * | 2022-05-08 | 2022-09-27 | 深圳市美好创亿医疗科技股份有限公司 | Cavity support and preparation method thereof |
-
2022
- 2022-11-23 CN CN202211480396.5A patent/CN115737226A/en active Pending
- 2022-12-08 WO PCT/CN2022/137693 patent/WO2024108661A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024108661A1 (en) | 2024-05-30 |
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