CN212816407U - Double-material tissue closing clamp - Google Patents
Double-material tissue closing clamp Download PDFInfo
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- CN212816407U CN212816407U CN201820895109.XU CN201820895109U CN212816407U CN 212816407 U CN212816407 U CN 212816407U CN 201820895109 U CN201820895109 U CN 201820895109U CN 212816407 U CN212816407 U CN 212816407U
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Abstract
本实用新型涉及一种双料组织闭合夹，它包括两夹臂以及连接在夹臂尾端的连接部；所述夹臂由弯曲屈服强度高的可吸收材料制成，所述连接部由弯曲屈服延展率高的可吸收材料制成。本实用新型的目的在于提供一种操作简单、结扎牢靠且可吸收的双料组织闭合夹。本实用新型的优点在于：本实用新型的夹臂由弯曲屈服强度高的可吸收材料制成，连接部则由弯曲屈服延展率高的可吸收材料制成，不仅可被组织吸收，无需二次手术，而且操作简单、结扎牢靠。
The utility model relates to a double-material tissue closing clip, which comprises two clip arms and a connecting part connected to the tail end of the clip arms; the clip arms are made of absorbable material with high bending yield strength, and the connecting part is extended by bending yield Made of high-efficiency absorbable material. The purpose of the utility model is to provide a double-material tissue closure clip that is simple to operate, firmly ligated and absorbable. The advantages of the utility model are: the clip arm of the utility model is made of absorbable material with high bending yield strength, and the connecting part is made of absorbable material with high bending yield elongation, which can not only be absorbed by the tissue, but does not require secondary The operation is simple, and the ligation is reliable.
Description
Technical Field
The utility model relates to the field of medical equipment, especially a closed clamp of extra quality tissue.
Background
In laparoscopic surgery, tissue closing clamps are often used to clamp and tie tissue inside a cavity, seal and tie tubular tissue inside a human body, prevent liquid leakage, and perform hemostasis or ligation.
The traditional tissue closing clip is divided into two types of absorbable and non-absorbable, and after the tissue is closed, the non-absorbable closing clip needs to be taken out through a secondary operation, so that the secondary wound of a patient is increased; whereas the strength of the absorbable closure clip differs significantly from the non-absorbable closure clip, the prior art uses a double-layered absorbable clip to compensate for the lack of strength, but adds to the complexity of the procedure.
Disclosure of Invention
An object of the utility model is to provide an easy operation, the firm and absorbent pair of material tissue closure of ligature press from both sides.
The purpose of the utility model is realized through the following technical scheme: a double-material tissue closing clamp comprises two clamping arms and a connecting part connected to the tail ends of the clamping arms; the clamping arm is made of absorbable materials with high bending yield strength, and the connecting portion is made of absorbable materials with high bending yield elongation.
Compare prior art, the utility model has the advantages of: the utility model discloses an arm lock is made by the high absorbable material of crooked yield strength, and connecting portion then are made by the high absorbable material of crooked yield percentage of extension, not only can be absorbed by the tissue, need not the secondary operation, and easy operation, ligature are firm moreover.
Drawings
Fig. 1 is a schematic structural view of a first double-material tissue closure clip according to the present invention.
Fig. 2 is a schematic structural view of a second embodiment of the dual-material tissue closure clip of the present invention.
Fig. 3 is a schematic structural view of a third embodiment of the dual-material tissue closure clip of the present invention.
Fig. 4 is a schematic structural view of a fourth embodiment of the dual-material tissue closure clip of the present invention.
Fig. 5 is a schematic structural view of a fifth embodiment of the dual-material tissue closure clip of the present invention.
Description of reference numerals: 1 clamping arm, 2 connecting parts and 3 stress grooves.
Detailed Description
The invention is described in detail below with reference to the drawings and examples of the specification:
fig. 1-5 are schematic views illustrating an embodiment of a dual-material tissue closure clip according to the present invention.
A double-material tissue closing clamp comprises two clamping arms 1 and a connecting part 2 connected to the tail ends of the clamping arms 1; the clamping arm 1 is made of an absorbable material with high bending yield strength, and the connecting part 2 is made of an absorbable material with high bending yield elongation.
The clamping arm 1 is made of absorbable materials with high bending yield strength, so that the clamping arm 1 has enough rigidity, the clamping firmness of the clamping arm 1 is ensured, and the phenomenon of clamp release is prevented.
The connecting part 2 is made of absorbable materials with high bending yield elongation rate, so that the tail end connecting part 2 has enough toughness, and the condition that the tail end is fractured due to bending stress generated when the double-material tissue closing clamp is closed can be prevented.
The material of the clamping arm 1 is polylactic acid-glycolic acid copolymer, polyglycolide or polylactide.
The connecting part 2 is made of polydioxanone, lactide-trimethylene carbonate copolymer, polycaprolactone, lactide or caprolactone copolymer.
The connecting part 2 is provided with a pea-shaped stress groove.
The double-material tissue closing clamp is manufactured by adopting a double-material injection molding process.
The interface of the clamping arm 1 and the connecting part 2 has the following embodiments:
the interface between the clamping arm 1 and the connecting part 2 is a vertical plane (as shown in fig. 1).
The interface between the clamping arm 1 and the connecting part 2 is a slope (as shown in fig. 2).
The interface between the clamping arm 1 and the connecting part 2 is a zigzag surface or an arc-shaped curved surface.
The section of the arc-shaped curved surface is in a shape like a Chinese character 'ji' (as shown in figure 3) or in a shape like an 'S' (as shown in figure 4).
The two sides of the connecting part 2 are provided with tenon structures, and the clamping arm 1 is provided with mortise structures matched with the dovetail-shaped structures (as shown in figure 5).
In one embodiment, the material of the clamping arm 1 is poly (lactic-co-glycolic acid), PLGA, and the breaking elongation is less than 6%; the connecting part 2 is made of polydioxanone (PPDO) and has a crack elongation of at least 400%. Through finite element analysis, the maximum strain at the connecting part 2 is 9.7% when the double-material tissue closing clip is simulated from an opening state to a closing state, and the combination mode is verified to have no fracture risk.
In the closed state of the clamp, the maximum tensile force which can be borne by the clamp is measured by a test method of hanging a heavy object, and the following test data are obtained:
through test data, it can be easily seen that the strong thing can only bear 500 g's pulling force for single material can absorb the clamp entirely, and Hemolok can bear the pulling force more than 1000g for can not absorbing the clamp, and the utility model discloses the pulling force that can bear can absorb 2 times of clamp for single material at least, and press from both sides intensity with can not absorbing and match.
The utility model discloses compare in several kinds of tradition tissue clamps and have following advantage respectively:
the tradition can not absorb the postoperative and do not take out to have foreign body reaction or produce disease such as inflammation, pain to tissue stimulation for a long time, if take out then have secondary operation wound, the utility model discloses an absorbable material makes, and the postoperative need not to take out.
The tradition can absorb the list and press from both sides all adopt the better material of toughness, and intensity is not enough, has to take off the clamp risk, the utility model discloses a two kinds or more than two kinds can absorb the material and make, and intensity can reach and can not absorb more than 80% that presss from both sides.
The tradition can absorb double-layered intensity problem of pressing from both sides through institutional advancement has compensatied and has absorbed single-layered, but the operation is complicated, brings inconvenience for the art person, the utility model discloses still adopt single-layered structure, guaranteed the simplicity of operation.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820895109.XU CN212816407U (en) | 2018-06-08 | 2018-06-08 | Double-material tissue closing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820895109.XU CN212816407U (en) | 2018-06-08 | 2018-06-08 | Double-material tissue closing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212816407U true CN212816407U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820895109.XU Active CN212816407U (en) | 2018-06-08 | 2018-06-08 | Double-material tissue closing clamp |
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| CN (1) | CN212816407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116474156A (en) * | 2023-04-10 | 2023-07-25 | 施爱德（厦门）医疗器材有限公司 | Preparation method of absorbable antibacterial material and hemostatic ligation clip made therefrom |
-
2018
- 2018-06-08 CN CN201820895109.XU patent/CN212816407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116474156A (en) * | 2023-04-10 | 2023-07-25 | 施爱德（厦门）医疗器材有限公司 | Preparation method of absorbable antibacterial material and hemostatic ligation clip made therefrom |
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