CN113857399A - Blood vessel support heat setting positioner - Google Patents
Blood vessel support heat setting positioner Download PDFInfo
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- CN113857399A CN113857399A CN202111072615.1A CN202111072615A CN113857399A CN 113857399 A CN113857399 A CN 113857399A CN 202111072615 A CN202111072615 A CN 202111072615A CN 113857399 A CN113857399 A CN 113857399A
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 25
- 238000009998 heat setting Methods 0.000 title claims abstract description 9
- 230000002792 vascular Effects 0.000 claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 7
- 230000001788 irregular Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003856 thermoforming Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000005259 peripheral blood Anatomy 0.000 description 2
- 239000011886 peripheral blood Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F33/00—Tools or devices specially designed for handling or processing wire fabrics or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to the technical field of medical device auxiliary equipment, and provides a blood vessel support heat setting and positioning device which comprises a device body, wherein the device body comprises a head end unit, the head end unit is connected with a middle end unit used for setting and positioning a blood vessel support, the middle end unit far away from the head end unit is connected with a tail end unit, a first dovetail groove is formed in the head end unit, a second dovetail groove is formed in the tail end unit, and the middle end unit comprises a short column body and a long column body; in the process of thermoforming the vascular stent, the vascular stent is placed on the middle-end unit, so that the shape and the position of the stent are prevented from being easily subjected to irregular deviation, and the vascular stent is subjected to thermoforming and positioning on the middle-end unit; the intravascular stent is convenient to mount on the middle end unit and also convenient to dismount between the middle end unit and the head end unit as well as between the middle end unit and the middle end unit, so that the yield of the stent is improved and the manufacturing cost of the stent is reduced; is beneficial to demoulding the blood vessel stent on the middle-end unit.
Description
Technical Field
The invention relates to the technical field of medical device auxiliary equipment, in particular to a vascular stent heat setting positioning device.
Background
Peripheral blood vessels are common diseases in clinic, and when the peripheral blood vessels are abnormal, the blood vessels at the diseased parts collapse and other problems, so that blood cannot flow normally, and normal blood supply of related organs is influenced to cause other diseases. Therefore, a stent is usually used to support the collapsed blood vessels at the lesion site to allow the blood to flow normally.
In the prior art, in the thermoforming process of the blood vessel stent, irregular deviation is easy to occur in the shape and position of the stent, so that the designed structure cannot meet the required quality standard, the sheath tube is difficult to load and convey in the stent, the demolding is not easy, the yield of the stent is low finally, and the manufacturing cost of the stent is improved.
How to effectively solve the technical problems is a problem to be solved by the technical personnel in the field at present.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, the invention provides a blood vessel stent heat setting positioning device.
The vascular stent heat setting and positioning device comprises a device body, wherein the device body comprises a head end unit, the head end unit is connected with a middle end unit used for setting and positioning a vascular stent, and the middle end unit far away from the head end unit is connected with a tail end unit;
the head end unit is provided with a first dovetail groove, and the tail end unit is provided with a second dovetail groove;
the section of the middle-end unit comprises a short column body and a long column body.
Optionally, the head end unit comprises a first end piece and a second end piece;
the end part of the first end piece far away from the second end piece side is provided with an inclined part, a cylindrical part is connected with the inclined part, and the length of the inclined part is smaller than that of the cylindrical part.
Optionally, the end of the first end piece far away from the second end piece side is a first end, and the end of the first end piece close to the second end piece side is a second end;
the diameter of the first end portion is smaller than the diameter of the second end portion.
Optionally, a first connector is disposed between the first end piece and the second end piece;
the diameter of the first connecting piece is smaller than that of the second end piece, and the diameter of the second end piece is smaller than that of the cylindrical part, so that the first dovetail groove is formed between the first end piece and the first connecting piece and between the first end piece and the second end piece.
Optionally, the end of the second end piece away from the first end piece side is provided with a protrusion, and the protrusion protrudes toward the side away from the first connector.
Optionally, the short column body comprises a first short column and a second short column, and the long column body comprises a first long column and a second long column;
the first short column, the first long column, the second short column and the second long column are sequentially placed to enclose the middle-end unit.
Optionally, the outer surface of the middle end unit is provided with an engraving layer which is consistent with the shape of the blood vessel stent.
Optionally, the middle-end unit is a cylindrical structure, and the wall thickness of the middle-end unit is 1mm to 1.5 mm.
Optionally, the tail end unit comprises a third end piece and a fourth end piece, and a second connecting piece is arranged between the third end piece and the fourth end piece;
the diameter of the second connecting piece is smaller than that of the third end piece, and the diameter of the third end piece is smaller than that of the fourth end piece, so that the second dovetail groove is formed among the third end piece, the second connecting piece and the fourth end piece.
Optionally, the second end piece and the first dovetail slot are inserted simultaneously into the middle end unit near the head end unit side;
the third end piece and the second dovetail groove are simultaneously inserted into the middle end unit near the tail end unit side.
In the invention, the blood vessel support is placed on the middle end unit in the thermal forming process, and the head end unit and the tail end unit are respectively connected with the two end parts of the middle end unit and play a role in limiting the blood vessel support on the middle end unit, so that the irregular deviation of the shape and the position of the support is avoided, and the blood vessel support is thermally formed and positioned on the middle end unit.
The first dovetail groove is convenient for the connection and the dismantlement of head end unit and middle-end unit, and the second dovetail groove is convenient for the connection and the dismantlement of tail end unit and middle-end unit, and this project organization satisfies the quality standard of different requirements to vascular support is convenient for install on middle-end unit, also is convenient for the dismantlement between middle-end unit and the head end unit and the middle-end unit simultaneously, thereby promotes the yield of support and reduces manufacturing cost.
The short column and the long column are combined, so that the blood vessel support is convenient to demould on the middle end unit.
Drawings
FIG. 1 is a schematic structural diagram of a device body provided by the present invention;
fig. 2 is a schematic structural diagram of a head-end unit provided by the present invention;
FIG. 3 is a schematic structural diagram of a tail unit provided in the present invention;
FIG. 4 is a schematic cross-sectional structure diagram of a middle-end unit provided by the present invention;
FIG. 5 is a schematic structural diagram of a middle-end unit provided by the present invention;
reference numerals:
1. a head end unit; 11. a first end piece; 111. a first end portion; 112. a cylindrical portion; 113. an inclined portion; 114. a second end portion; 12. a first dovetail groove; 13. a second end piece; 131. a boss portion; 14. a first connecting member;
2. a middle-end unit; 21. a first stub; 22. a first long column; 23. a second stub; 24. a second long column;
3. a vascular stent;
4. a tail end unit; 41. a second connecting member; 42. a fourth end piece; 43. a second dovetail groove; 44. a third end piece.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The following examples are intended to illustrate the invention, but not to limit it. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "connected" and "coupled" are used broadly and may include, for example, a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The invention provides an embodiment, and with reference to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a blood vessel stent heat setting and positioning device comprises a device body, wherein the device body comprises a head end unit 1, the head end unit 1 is connected with a middle end unit 2 for setting and positioning a blood vessel stent 3, and the middle end unit 2 far away from the head end unit 1 is connected with a tail end unit 4;
the head end unit 1 is provided with a first dovetail groove 12, and the tail end unit 4 is provided with a second dovetail groove 43;
the section of the middle unit 2 includes a short cylinder and a long cylinder.
In this embodiment, the blood vessel support 3 is placed on the middle-end unit 2 in the thermoforming process, and because the two ends of the middle-end unit 2 are respectively connected with the head-end unit 1 and the tail-end unit 4, the head-end unit 1 and the tail-end unit 4 play a limiting role in the blood vessel support 3 on the middle-end unit 2, and irregular deviation of the shape and the position of the blood vessel support 3 is avoided, so that the blood vessel support 3 is heat-set and positioned on the middle-end unit 2.
The first dovetail groove 12 facilitates connection and detachment of the head end unit 1 and the middle end unit 2, the second dovetail groove 43 facilitates connection and detachment of the tail end unit 4 and the middle end unit 2, the design structure meets quality standards of different requirements, the intravascular stent 3 is convenient to mount on the middle end unit 2, and meanwhile detachment between the middle end unit 2 and the head end unit 1 and the middle end unit 1 is also convenient, so that yield of the intravascular stent 3 is improved, and manufacturing cost is reduced.
The combination of the short cylinder and the long cylinder is beneficial to the installation and the demoulding of the intravascular stent 3 on the middle-end unit 2.
In yet another embodiment of the present invention, as shown in fig. 2, the head end unit 1 includes a first end piece 11 and a second end piece 13;
the end of the first end piece 11 remote from the second end piece 13 is provided with an inclined portion 113, the inclined portion 113 is connected with the cylindrical portion 112, and the length of the inclined portion 113 is smaller than the length of the cylindrical portion 112.
In this embodiment, the second end piece 13 is adapted to be connected to the middle unit 2, and the connected middle unit 2 is in contact with the cylindrical portion 112.
The inclined portion 113 facilitates an operator to hold the cylindrical portion 112 by hand, or to grip the cylindrical portion 112 after the operator has passed through the inclined portion 113 using a gripping device.
The length of the inclined portion 113 is smaller than the length of the cylindrical portion 112, further facilitating the operator's grip of the cylindrical portion 112.
In order to further realize that after the second end piece 13 is connected with the middle end unit 2, the first end piece 11 limits the middle end unit 2, so that the blood vessel stent 3 is positioned on the middle end unit 2, as shown in fig. 2, the end of the first end piece 11 far away from the second end piece 13 is a first end part 111, and the end of the first end piece 11 close to the second end piece 13 is a second end part 114;
the diameter of the first end 111 is smaller than the diameter of the second end 114.
According to another embodiment of the present invention, as shown in fig. 2, a first connecting member 14 is disposed between the first end member 11 and the second end member 13;
the diameter of the first connecting member 14 is smaller than that of the second connecting member 13, and the diameter of the second connecting member 13 is smaller than that of the cylindrical portion 112, so that the first dovetail groove 12 is formed between the first connecting member 11 and the first and second connecting members 14 and 13.
In this embodiment, the first dovetail groove 12 formed between the first end piece 11 and the first and second connecting pieces 14 and 13 further allows the head end unit 1 and the middle end unit 2 to be clamped. Meanwhile, a clamping piece clamped with the first dovetail groove 12 is arranged on the inner side of the end part of the middle end unit 2 close to the first end piece 11 side. The clamping piece is arc-shaped, so that the middle-end unit 2 and the first dovetail groove 12 can be clamped, and the middle-end unit 2 and the first dovetail groove 12 can be detached conveniently.
The diameter of the first connecting member 14 is smaller than that of the second end member 13, the diameter of the second end member 13 is smaller than that of the cylindrical portion 112, and further, after the second end member 13 is connected with the middle end unit 2, the first end member 11 limits the middle end unit 2 and the blood vessel support 3 on the middle end unit 2.
In another embodiment of the present invention, as shown in fig. 2, the end of the second end piece 13 away from the first end piece 11 is provided with a protrusion 131, and the protrusion 131 protrudes toward the side away from the first connector 14.
In the present embodiment, the protrusion 131 is used to achieve the connection with the middle unit 2, and also to partially buffer the connection between the second end piece 13 and the middle unit 2 after the second end piece 13 is connected with the middle unit 2, and further protect the connection between the second end piece 13 and the middle unit 2 during the heating process.
In yet another embodiment of the present invention, with reference to fig. 4 and 5, the short column body includes a first short column 21 and a second short column 23, and the long column body includes a first long column 22 and a second long column 24;
the first short column 21, the first long column 22, the second short column 23 and the second long column 24 are sequentially arranged to enclose the middle-end unit 2.
In this embodiment, after the vascular stent 3 to be heat-set is placed on the surfaces of the short column body and the long column body, the first short column 21, the first long column 22, the second short column 23, and the second long column 24 are sequentially placed, and then the head unit 1 and the tail unit 4 are respectively inserted, completing the installation of the device body.
After the middle-end unit 2 is separated from the head-end unit 1 and the tail-end unit 4, the first short column 21 and the second short column 23 can be respectively pulled out after being lightly pressed, and then the first long column 22 and the second long column 24 are respectively pulled out after being lightly pressed, so that the demolding process is completed.
In yet another embodiment of the present invention, referring to fig. 1 and 5, the outer surface of the middle unit 2 is provided with an engraved layer conforming to the shape of the stent 3.
In this embodiment, the shape of the engraved layer may be set according to the actual situation.
The depth of the carving layer is 0.1mm to 0.2mm, and the groove width of the carving layer is 0.1mm to 0.3 mm.
In another embodiment of the present invention, referring to fig. 4 and 5, the middle unit 2 has a cylindrical structure, and the wall thickness of the middle unit 2 is 1mm to 1.5 mm.
In this embodiment, the wall thickness of 1mm to 1.5mm can ensure that the middle-end unit 2 does not deform during the heat setting process and can also ensure rapid heat conduction during the heating process.
According to another embodiment of the present invention, as shown in fig. 3, tail end unit 4 includes a third end piece 44 and a fourth end piece 42, and a second connecting member 41 is disposed between third end piece 44 and fourth end piece 42;
the diameter of the second connecting member 41 is smaller than that of the third connecting member 44, and the diameter of the third connecting member 44 is smaller than that of the fourth connecting member 42, so that a second dovetail groove 43 is formed between the third connecting member 44 and the second connecting member 41 and the fourth connecting member 42.
In this embodiment, a second dovetail groove 42 is formed between the third end piece 44 and the second connecting piece 41 and the fourth end piece 42, so as to further clamp the tail end unit 4 and the middle end unit 2. Meanwhile, a clamping piece clamped with the second dovetail groove 43 is arranged on the inner side of the end part of the middle end unit 2 close to the fourth end piece 42 side. The clamping piece is arc-shaped, so that the middle-end unit 2 and the second dovetail groove 43 can be clamped, and the middle-end unit 2 and the second dovetail groove 32 can be detached conveniently.
The diameter of the second connecting piece 41 is smaller than that of the third end piece 44, the diameter of the third end piece 44 is smaller than that of the fourth end piece 42, and after the third end piece 44 is further connected with the middle end unit 2, the middle end unit 2 and the blood vessel stent 3 on the middle end unit 2 are limited.
The fourth end member 42 is of a disc shape so that the tail end unit 4 can stand upright in the heat treatment furnace, facilitating the taking and putting of the apparatus body.
In order to prevent the gap from occurring when the middle-end unit 2 is connected to the head-end unit 1 and the tail-end unit 4, respectively, according to another embodiment of the present invention, as shown in fig. 1, the second end piece 13 and the first dovetail groove 12 are simultaneously inserted into the middle-end unit 2 on the side close to the head-end unit 1;
the third end piece 44 and the second dovetail groove 43 are simultaneously inserted into the middle end unit 2 near the tail end unit 4 side.
The above description is not intended to limit the present invention, and it should be finally explained that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments. Those of ordinary skill in the art will understand that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments without departing from the spirit of the present invention.
Claims (10)
1. A heat setting and positioning device for a blood vessel stent comprises a device body and is characterized in that,
the device body comprises a head end unit, the head end unit is connected with a middle end unit used for shaping and positioning the vascular stent, and the middle end unit far away from the head end unit is connected with a tail end unit;
the head end unit is provided with a first dovetail groove, and the tail end unit is provided with a second dovetail groove;
the section of the middle-end unit comprises a short column body and a long column body.
2. The heat-set positioning device for vascular stents according to claim 1,
the head end unit includes a first end piece and a second end piece;
the end part of the first end piece far away from the second end piece side is provided with an inclined part, a cylindrical part is connected with the inclined part, and the length of the inclined part is smaller than that of the cylindrical part.
3. The heat-set positioning device for vascular stents according to claim 2,
the end part of the first end piece far away from the second end piece side is a first end part, and the end part of the first end piece close to the second end piece side is a second end part;
the diameter of the first end portion is smaller than the diameter of the second end portion.
4. The heat-set positioning device for vascular stents according to claim 3,
a first connector is arranged between the first end piece and the second end piece;
the diameter of the first connecting piece is smaller than that of the second end piece, and the diameter of the second end piece is smaller than that of the cylindrical part, so that the first dovetail groove is formed between the first end piece and the first connecting piece and between the first end piece and the second end piece.
5. The vascular stent heat-set positioning device as claimed in claim 4, wherein the end of the second end member away from the first end member side is provided with a protrusion which protrudes towards the side away from the first connector.
6. The heat-set positioning device for vascular stents according to claim 2,
the short column body comprises a first short column and a second short column, and the long column body comprises a first long column and a second long column;
the first short column, the first long column, the second short column and the second long column are sequentially placed to enclose the middle-end unit.
7. The stent heat-set positioning device as claimed in claim 6, wherein the outer surface of the middle end unit is provided with an engraved layer conforming to the shape of the stent.
8. The heat-set positioning device for the blood vessel stent of claim 7, wherein the middle end unit is a cylindrical structure, and the wall thickness of the middle end unit is 1mm to 1.5 mm.
9. The heat-set positioning device for vascular stents according to claim 4,
the tail end unit comprises a third end piece and a fourth end piece, and a second connecting piece is arranged between the third end piece and the fourth end piece;
the diameter of the second connecting piece is smaller than that of the third end piece, and the diameter of the third end piece is smaller than that of the fourth end piece, so that the second dovetail groove is formed among the third end piece, the second connecting piece and the fourth end piece.
10. The heat-set positioning device for vascular stents according to claim 9,
the second end piece and the first dovetail slot are simultaneously inserted into the middle end unit near the head end unit side;
the third end piece and the second dovetail groove are simultaneously inserted into the middle end unit near the tail end unit side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072615.1A CN113857399A (en) | 2021-09-14 | 2021-09-14 | Blood vessel support heat setting positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072615.1A CN113857399A (en) | 2021-09-14 | 2021-09-14 | Blood vessel support heat setting positioner |
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| Publication Number | Publication Date |
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| CN113857399A true CN113857399A (en) | 2021-12-31 |
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| CN202111072615.1A Pending CN113857399A (en) | 2021-09-14 | 2021-09-14 | Blood vessel support heat setting positioner |
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