CN204410871U - Superlastic metal skin undertissue stitching devices - Google Patents
Superlastic metal skin undertissue stitching devices Download PDFInfo
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- CN204410871U CN204410871U CN201520023496.4U CN201520023496U CN204410871U CN 204410871 U CN204410871 U CN 204410871U CN 201520023496 U CN201520023496 U CN 201520023496U CN 204410871 U CN204410871 U CN 204410871U
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Abstract
This utility model relates to subcutaneous tissue stiching instrument technical field, especially a kind of superlastic metal skin undertissue stitching devices, and comprise metal suture line, also comprise the reeded medical suture needle of afterbody tool, medical suture needle is divided into riveting section and needle body section; Described groove runs through riveting section and extends to needle body section, and the cross-sectional area of riveting section is less than the cross-sectional area of needle body section, and metal suture line is fixed in groove, and the part being in riveting section between metal suture line and groove adopts this material characteristics temperature M
sthe mode of following riveting is fixedly connected with; The diameter of superlastic metal skin undertissue of the present utility model its riveting linkage section of stiching instrument is less than the diameter of needle body section and riveting section does not have boss, exceedes needle body through the extra wound beyond diameter at sewing needle through causing when organizing; It adopts the mode of riveting to ensure the connection reliability of stitching thread and sewing needle, and without the need to welding, stitching thread not easily comes off from sewing needle, is conducive to carrying out smoothly of subcutaneous tissue suture operation.
Description
Technical field
This utility model relates to subcutaneous tissue stiching instrument technical field, especially a kind of superlastic metal skin undertissue stiching instrument.
Background technology
It is make of this kind of artificial material of nylon that most subcutaneous tissue that traditional clinical uses are sewed up, in its edema disappearance process stood at subcutaneous tissue after sewing up, the tension force of nylon suture also disappears thereupon, cause healing subcutaneous tissue ride comfort poor, after bringing skin incision closure, outward appearance cicatrix is obvious; This exopathogenic factor nylon yarn footpath is very thin, is connected inconvenience with suture needle, has to sew up interrupt and fall pin risk.The stitching devices occurred on the market at present, have a projection at the afterbody of its sewing needle, its diameter is greater than sewing needle main diameter, sewing needle will be caused like this to pass when organizing wound and also cause extra wound; On the other hand because silk material this kind of during room temperature suture operation is still harder, compliance is still needed raising, and when clinician is desirably in stitching, stitching thread still has the soft compliance of traditional suturing thread; Take into account stitching thread after sewing up simultaneously and there is the output of high superlastic stress and lasting hyperelastic maintenance under body temperature; And the improvement of sewing needle afterbody syndeton is to reduce stitching holes and then to reduce tissue injury; Also have NiTi and rustless steel disparate metals soldering reliability to solve not yet very well in the whole world so far, have the risk of weld brittle failure, above-mentioned problem inhibits the use of above-mentioned stiching instrument.
Utility model content
The technical problems to be solved in the utility model is: in order to solve the extra wound that conventional subcutaneous tissue apposition device brings in the easy brittle failure in its junction and sewing needle tail protrusion, now provides a kind of superlastic metal skin undertissue stiching instrument.
This utility model solves the technical scheme that its technical problem adopts: a kind of superlastic metal skin undertissue stitching devices, comprise metal suture line, also comprise the reeded medical suture needle of afterbody tool, described medical suture needle is divided into riveting section and needle body section, described groove runs through riveting section and extends to needle body section, the cross-sectional area of described riveting section is less than the cross-sectional area of needle body section, described metal suture line is fixed in groove, medical suture needle connecting portion does not have boss, cross section is not had to increase yet, the diameter that the diameter of its backshank is less than needle body can not cause sewing needle to pass the extra wound that when organizing, formation exceedes beyond needle body diameter.
In order to make the convenient, fast and reliable connection sewing needle of stitching thread further, the part being in riveting section between described metal suture line and groove adopts this material characteristics temperature M
sthe mode of following riveting is fixedly connected with.
Preferably, the length of described groove is 6 ~ 20 times of diameter itself.
Preferably, the length of described riveting section is 5 ~ 17 times of groove diameter length.
The beneficial effects of the utility model are: the diameter of superlastic metal skin undertissue of the present utility model its riveting section of stiching instrument is less than the diameter of needle body section and riveting section does not have boss, can not form through organizing during wound the wound exceeded beyond needle body diameter at sewing needle, it adopts the mode of riveting to ensure the connection reliability of stitching thread and sewing needle, without the need to welding, stitching thread not easily comes off from sewing needle, is conducive to carrying out smoothly of subcutaneous tissue suture operation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the partial enlarged drawing of A in Fig. 1;
Fig. 3 is the longitudinal axial section of A.
In figure: 1, metal suture line, 2, needle body section, 3, riveting section, 4, groove.
Detailed description of the invention
By reference to the accompanying drawings this utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with this utility model.
Embodiment 1
A kind of superlastic metal skin undertissue stitching devices as shown in Figure 1,2 and 3, comprise metal suture line 1, also comprise the medical suture needle that afterbody has groove 4, medical suture needle is divided into riveting section 3 and needle body section 2, groove 4 runs through riveting section 3 and extends to needle body section 2, the cross-sectional area of riveting section 3 is less than the cross-sectional area of needle body section 2, metal suture line 1 extend into until the termination of groove 4 in groove 4, and the part being in riveting section 3 between metal suture line 1 with groove 4 adopts the mode of riveting to be fixedly connected with.
Embodiment 2
With the difference of embodiment 1, embodiment 2 is that the length of groove 4 is 14 times of diameter itself, the length of riveting section 3 is 12 times of groove 4 diameter length.
Above-mentioned metal suture line 1 must be:
Material dials through the cold drawn of natural diamond grinding tool the silk material diameter that maintains uniformity, material obtains uniform superlastic functional characteristic, material characteristic and mechanical property after alignment heat treatment, and material need become clean state just as suture material after removing the foreign substance such as metal oxide film and lubricant;
At M
sat (initial temperature of martensite transfor mation) temperature, above-mentioned metal suture line 1 is adopted a pair with the cutter of semicircle blade mould according to the severing of metal suture line 1 cut lengths, fracture cross section should perpendicular to metal suture line 1 axis direction, and incision position should without severing burr and dirty;
Doctor is in the step using above-mentioned stitching devices to be:
1) insert in the groove 4 of medical sutures Aculeata with one end of the main metal suture line 1 of plastic clip subcard;
2) at M
sat (initial temperature of martensite transfor mation) temperature, with the riveter with special tooling jig, the part riveting being in riveting section 3 between metal suture line 1 and groove 4 is fixed;
3) sew up with conventional this device of sew application code.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, must determine its technical scope according to right.
Claims (4)
1. a superlastic metal skin undertissue stitching devices, comprise metal suture line (1), it is characterized in that: also comprise the medical suture needle that afterbody has groove (4), described medical suture needle is divided into riveting section (3) and needle body section (2), described groove (4) runs through riveting section (3) and extends to needle body section (2), the cross-sectional area of described riveting section (3) is less than the cross-sectional area of needle body section (2), and described metal suture line (1) is fixed in groove (4).
2. superlastic metal skin undertissue according to claim 1 stitching devices, is characterized in that: described metal suture line (1) adopts the mode of riveting to be fixedly connected with the part being in riveting section (3) between groove (4).
3. superlastic metal skin undertissue according to claim 2 stitching devices, is characterized in that: the length of described groove (4) is 6 ~ 20 times of diameter itself.
4. superlastic metal skin undertissue according to claim 3 stitching devices, is characterized in that: the length of described riveting section (3) is 5 ~ 17 times of groove (4) diameter length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023496.4U CN204410871U (en) | 2015-01-13 | 2015-01-13 | Superlastic metal skin undertissue stitching devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023496.4U CN204410871U (en) | 2015-01-13 | 2015-01-13 | Superlastic metal skin undertissue stitching devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204410871U true CN204410871U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023496.4U Active CN204410871U (en) | 2015-01-13 | 2015-01-13 | Superlastic metal skin undertissue stitching devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204410871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11229430B2 (en) | 2019-08-08 | 2022-01-25 | Ethicon, Inc. | Systems, devices and methods of using needle sheaths for passing curved, superelastic suture needles through trocars |
| US12011161B2 (en) | 2021-01-21 | 2024-06-18 | Ethicon, Inc. | Suture needle adaptors for delivering suture needles through cannulas while simultaneously visualizing the delivery of the suture needles through the cannulas |
-
2015
- 2015-01-13 CN CN201520023496.4U patent/CN204410871U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11229430B2 (en) | 2019-08-08 | 2022-01-25 | Ethicon, Inc. | Systems, devices and methods of using needle sheaths for passing curved, superelastic suture needles through trocars |
| US12011161B2 (en) | 2021-01-21 | 2024-06-18 | Ethicon, Inc. | Suture needle adaptors for delivering suture needles through cannulas while simultaneously visualizing the delivery of the suture needles through the cannulas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Yuping Inventor before: Chen Qingfu Inventor before: Chen Yuping |
|
| COR | Change of bibliographic data |