CN205019110U - Take auto -lock structure can internally degrade organize closed clamp - Google Patents
Take auto -lock structure can internally degrade organize closed clamp Download PDFInfo
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- CN205019110U CN205019110U CN201520628601.7U CN201520628601U CN205019110U CN 205019110 U CN205019110 U CN 205019110U CN 201520628601 U CN201520628601 U CN 201520628601U CN 205019110 U CN205019110 U CN 205019110U
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- closed clamp
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Abstract
The utility model provides a take auto -lock structure can internally degrade organize closed clamp, it includes closed clamp upper arm and the closed clamp underarm that links to each other through the tail end, the junction of closed clamp upper arm and closed clamp underarm is the annular, the front end of closed clamp underarm is the arc recess, the front end of closed clamp upper arm be with arc recess matched with arc is protruding. Compared with the prior art, the utility model discloses following beneficial effect has: 1 organize closed clamp preparation method simple process, production efficiency is high, and structural design is reasonable, 2, the magnesium alloy has good mechanical properties, and the while end has the design of " O " type, has avoided the inefficacy fracture of the tight in -process of clamp, and the front end has the circular -arc auto -lock structure of filament bending formation, and processing convenience and clamp close the ability reinforce, are difficult for coming off, have guaranteed the reliability of clinical practice.
Description
Technical field
This utility model relate to a kind of with self-locking structure can vivo degradation tissue closure folder, belong to technical field of medical instruments.
Background technology
In the prior art, maximum remain Titanium clip in the ligation of surgery operated vessels, other vascular and tissue with closed use, be generally " U " or " V " type titanium and press from both sides.This titanium folder is because use simple, and determined curative effect, is widely used clinically.The requirement operated under titanium folder can meet sight glass, but can not be degraded after in implantation, and titanium is clipped in by under the effect of the elastic restoring force of folder tissue, easily occurs slip phenomenon and may dissociate to other position and become foreign body, causing the complication such as inflammatory reaction.In addition, market also have two kinds of tissue closure folders: 1, nonabsorable polymeric material tissue closure folder, the drawback that this kind of closed clamp also exists nonabsorable and is forever deposited in human body, and because intensity is lower, small product size design is comparatively large, affects inside of human body tissue after putting into human body.2, absorbable polymer materials microstructure closed clamp, this kind of closed clamp overcomes the shortcoming of last class closed clamp nonabsorable, but still there is the problem that intensity is lower, so it is larger still to there is volume, can affect the problem of inside of human body tissue after putting into human body, and the degradation speed of this kind of tissue closure folder is very fast.
Along with the progress of material science, degradable metal magnesium alloy materials is applied to human clinical trial as biomaterial for medical purpose, and this metalloid material not only has good biocompatibility, and has suitable mechanical property, degradation rate is controlled, and catabolite is human essential elements.Adopt degradable magnesium alloy tinsel to prepare tissue closure folder as can be seen here and have potential applicability in clinical practice.But magnesium alloy plastic deformation ability is poor, when being prepared into simple " U " or " V " type, adopting in special operating forceps clamping process and at the turning of " U " or " V " type, brittle fracture can occur.For this problem, this utility model based on degradable magnesium alloy propose a kind of with self-locking structure can vivo degradation tissue closure folder and preparation method thereof.
Utility model content
For defect of the prior art, the purpose of this utility model be to provide a kind of with self-locking structure can vivo degradation tissue closure folder.This tissue closure folder is owing to having self-locking pattern, and it is strong that folder closes ability, difficult drop-off, and adopt degradable magnesium alloy to make to degrade gradually in vivo and absorb by human body.
This utility model is achieved through the following technical solutions:
This utility model provide a kind of with self-locking structure can vivo degradation tissue closure folder, it comprises the closed clamp upper arm and closed clamp underarm that are connected by tail end, the junction of described closed clamp upper arm and closed clamp underarm ringwise, the front end of described closed clamp underarm is arc groove, and the front end of described closed clamp upper arm is the arc convex matched with described arc groove.
Preferably, the inward flange of described arc groove all has an end fillet and a front end fillet, and described end fillet is near the tail end of closed clamp underarm, and described front end fillet is away from the tail end of closed clamp underarm.
Preferably, the inner side of described closed clamp upper arm and the inner side of closed clamp underarm are respectively equipped with groove inside some Medial upper arm grooves and some underarms, and after closed clamp upper arm and closed clamp underarm are closed in opposite directions, inside closed clamp Medial upper arm groove and closed clamp underarm, groove is in being staggered.
Preferably, described end fillet place radius of a circle is 0.5 ~ 1mm, and fillet place, described front end radius of a circle is 0.5 ~ 1mm.
Preferably, inside described Medial upper arm groove and underarm, the degree of depth of groove is about 0.1mm.
Preferably, inside described Medial upper arm groove and underarm, the quantity of groove is 4 ~ 10.
Preferably, inside described Medial upper arm groove and underarm the cross-sectional profile of groove all in circular arc.
Preferably, the length of described closed clamp upper arm is less than the length of closed clamp underarm.
Preferably, the arc length of described arc groove is greater than 1/2nd circumference.
Tissue closure folder of the present utility model is made up of magnesium alloy materials, its front opening, and end is connected, and forms " V " or " U " shape structure; Upper arm and the underarm of tissue closure folder are asymmetric relative to its centrage, and have arc-shaped slot pass inside upper arm and underarm, prevent the slip of blood vessel and other vascular clamped, this arc-shaped slot pass is asymmetric on clamp opening direction simultaneously, prevents from the process of clamping, forming larger space and can not realizing blocking to blood vessel and other vascular;
The end of tissue closure folder of the present utility model has " O " shape structure, also can in being loop configuration, can prevent from occurring fracture because magnesium alloy plasticity is poor in the process of clamping, the arcuate groove that upper arm front end has according to the arc convex had and underarm leading portion cooperatively interacts into self-locking device, the reliability of clamping can be increased, simultaneously arc convex and arc groove all can have and obtain by magnesium silk is directly bending, easy to process.
Degradable magnesium alloy material described in the utility model is Mg-Nd-Zn-Zr, Mg-Zn-Gd, Mg-Zn-Mn or Mg-Zn-Zr base alloy.
Described in the utility model a kind of with self-locking structure can vivo degradation tissue closure folder be made up of the Mg alloy wire of diameter of phi 1mm, concrete preparation method comprises the steps:
Step 1, obtains magnesium alloy crin material by magnesium alloy blank by hot extrusion;
Step 2, magnesium alloy crin material extruding obtained, after multi pass drawing, obtains tissue closure folder filament;
Step 3, carries out stress relief annealing by magnesium alloy filament;
Step 4, carries out electrochemical polishing treatment by magnesium alloy filament;
Step 5, obtains tissue closure folder through mold pressing bending forming.
Preferably, in step 1, described magnesium alloy extrusion billet size is Φ 20mm × 30mm, and described extrusion temperature is 300 ~ 400 DEG C, and the diameter of described magnesium alloy crin material is Φ 1.5 ~ Φ 3mm.
Preferably, in step 2, adopt room temperature drawing, adopt 250 ~ 400 DEG C of stress relief annealing process between multi pass drawing, the diameter of described magnesium alloy filament is Φ 1mm.
Preferably, in step 3, the temperature of described stress relief annealing is 300 ~ 350 DEG C, and temperature retention time is 10 ~ 30min.
Preferably, in step 4, described electrochemical polishing treatment polishing fluid used is phosphoric acid: dehydrated alcohol volume ratio is 1:1 or ethylene glycol: hydrochloric acid volume ratio is 9:1, and the voltage of described polishing is 2-8V, the polishing time is 20-240s, and the temperature of polishing is room temperature.
Compared with prior art, this utility model has following beneficial effect:
1, tissue closure clipping Preparation Method technique described in the utility model is simple, and production efficiency is high, and reasonable in design;
2, tissue closure folder can be absorbed by the body voluntarily, has good biocompatibility, there is not the adverse effects such as foreign body reaction during degraded, avoids the drawback brought in permanent retention body;
3, magnesium alloy has good mechanical property, end has the design of " O " type simultaneously, avoids the failure fracture in clamping process, and front end has the arc-shaped self-locking structure that filament bend is formed, easy to process and folder closes that ability is strong, difficult drop-off, ensure that the reliability of clinical practice.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 be provided by the invention a kind of with self-locking structure can vivo degradation tissue closure folder open after structural representation;
Fig. 2 be provided by the invention a kind of with self-locking structure can the tissue closure folder of vivo degradation closed after structural representation.
In figure: 1, by the blood vessel that clamps or other vascular; 2, closed clamp upper arm; 3, closed clamp underarm, 4, upper arm and underarm end junction; 5, upper arm front end; 6, underarm front end; 7, end fillet, 8, front end fillet, 9, Medial upper arm groove; 10, groove inside underarm.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail.Following examples will contribute to those skilled in the art and understand this utility model further, but not limit this utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.
As depicted in figs. 1 and 2, this utility model provide a kind of with self-locking structure can vivo degradation tissue closure folder, it comprises the closed clamp upper arm 2 and closed clamp underarm 3 that are connected by tail end, the upper arm of closed clamp upper arm 2 and closed clamp underarm 3 and underarm end junction 4 are ringwise, the front end of closed clamp underarm 3 is arc groove, and the front end of closed clamp upper arm 4 is the arc convex matched with described arc groove.
The inward flange of arc groove has an end fillet 7 and a front end fillet 8, and end fillet 7 is near the tail end of closed clamp underarm 3, and front end fillet 8 is away from the tail end of closed clamp underarm 3.
The inner side of closed clamp upper arm 2 and the inner side of closed clamp underarm 3 are equipped with some grooves, be respectively groove 10 inside Medial upper arm groove 9 and underarm, inside Medial upper arm groove 9 and underarm, the quantity of groove 10 is equal, be 4 ~ 10, and after closed clamp upper arm and closed clamp underarm are closed in opposite directions, inside Medial upper arm groove 5 and underarm groove 6 along the intersection both sides of closed clamp upper arm 2 and closed clamp underarm 3 in being staggered.
End fillet 7 place radius of a circle is 0.5 ~ 1mm, and front end fillet 8 place radius of a circle is 0.5 ~ 1mm.
Preferably, the degree of depth of described groove is about 0.1mm.
The using method that this enforcement utility model is is: in the process of clamping, to be placed between closed clamp upper arm 2 and closed clamp underarm 3 by the blood vessel that clamps or other vascular 1, gap between closed clamp upper arm 2 and closed clamp underarm 3 diminishes gradually, upper arm front end 5 contacts with end fillet 7 with the front end fillet 8 of underarm front end 6, in the process of further clamping, upper arm dome segmental arc 5 enters in underarm concave arc section 6.Because the arc length of underarm concave arc section 6 is greater than 1/2nd circumference, so the distance between the front end fillet 8 of fixed mount underarm concave arc and end fillet 7 is less than the diameter of upper arm dome segmental arc 5.In the scope of magnesium alloy elastic deformation, upper arm dome segmental arc 5 is entered after in underarm concave arc section 6 and realizes self-locking.
Its front opening of closed clamp upper arm 2 and closed clamp underarm 3, end is connected, and forms " V " or " U " shape structure; Under closed clamp upper arm 2 and closed clamp, 3 arms are asymmetric relative to its centrage, and have inside closed clamp upper arm 2 and closed clamp underarm 3 be circular arc Medial upper arm groove 9 and underarm inside groove 10, prevent the slip of blood vessel and other vascular 1 clamped, this arc-shaped slot pass is asymmetric on clamp opening direction simultaneously, prevents from the process of clamping, forming larger space and can not realizing blocking to blood vessel and other vascular.
Compared with prior art, this utility model has following beneficial effect:
1, tissue closure clipping Preparation Method technique described in the utility model is simple, and production efficiency is high, and reasonable in design;
2, tissue closure folder can be absorbed by the body voluntarily, has good biocompatibility, there is not the adverse effects such as foreign body reaction during degraded, avoids the drawback brought in permanent retention body;
3, magnesium alloy has good mechanical property, end has the design of " O " type simultaneously, avoids the failure fracture in clamping process, and front end has the arc-shaped self-locking structure that filament bend is formed, easy to process and folder closes that ability is strong, difficult drop-off, ensure that the reliability of clinical practice.
Above specific embodiment of the utility model is described.It is to be appreciated that this utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (8)
1. one kind with self-locking structure can vivo degradation tissue closure folder, it is characterized in that, comprise the closed clamp upper arm and closed clamp underarm that are connected by tail end, the junction of described closed clamp upper arm and closed clamp underarm ringwise, the front end of described closed clamp underarm is arc groove, and the front end of described closed clamp upper arm is the arc convex matched with described arc groove.
2. band self-locking structure as claimed in claim 1 can the tissue closure folder of vivo degradation, it is characterized in that, the inward flange of described arc groove all has an end fillet and a front end fillet, described end fillet is near the tail end of closed clamp underarm, and described front end fillet is away from the tail end of closed clamp underarm.
3. band self-locking structure as claimed in claim 1 can the tissue closure folder of vivo degradation, it is characterized in that, the inner side of described closed clamp upper arm and the inner side of closed clamp underarm are respectively equipped with groove inside some Medial upper arm grooves and some underarms, and after closed clamp upper arm and closed clamp underarm are closed in opposite directions, inside closed clamp Medial upper arm groove and closed clamp underarm, groove is in being staggered.
4. band self-locking structure as claimed in claim 2 can the tissue closure folder of vivo degradation, it is characterized in that, described end fillet place radius of a circle is 0.5 ~ 1mm, and fillet place, described front end radius of a circle is 0.5 ~ 1mm.
5. band self-locking structure as claimed in claim 3 can the tissue closure folder of vivo degradation, it is characterized in that, inside described Medial upper arm groove and underarm, the degree of depth of groove is 0.1mm.
6. the band self-locking structure as described in claim 3 or 4 can the tissue closure folder of vivo degradation, it is characterized in that, inside described Medial upper arm groove and underarm, the quantity of groove is 4 ~ 10.
7. band self-locking structure as claimed in claim 6 can the tissue closure folder of vivo degradation, it is characterized in that, inside described Medial upper arm groove and underarm, the cross-sectional profile of groove is all in circular arc.
8. band self-locking structure as claimed in claim 1 can the tissue closure folder of vivo degradation, it is characterized in that, the arc length of described arc groove is greater than 1/2nd circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628601.7U CN205019110U (en) | 2015-08-19 | 2015-08-19 | Take auto -lock structure can internally degrade organize closed clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628601.7U CN205019110U (en) | 2015-08-19 | 2015-08-19 | Take auto -lock structure can internally degrade organize closed clamp |
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| CN205019110U true CN205019110U (en) | 2016-02-10 |
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| CN201520628601.7U Active CN205019110U (en) | 2015-08-19 | 2015-08-19 | Take auto -lock structure can internally degrade organize closed clamp |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105902290A (en) * | 2015-12-22 | 2016-08-31 | 杨西群 | Titanium nickel-based shape memory alloy tissue closing clip |
| CN108236484A (en) * | 2016-12-27 | 2018-07-03 | 江苏风和医疗器材股份有限公司 | Hemostatic clamp |
| CN108236483A (en) * | 2016-12-27 | 2018-07-03 | 江苏风和医疗器材股份有限公司 | Hemostatic clamp |
| CN109199516A (en) * | 2017-07-05 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of absorbable blood vessel folder |
| CN109199511A (en) * | 2017-07-03 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of surgical instruments |
| CN109199509A (en) * | 2017-07-03 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of absorbable surgical instruments |
| CN109199515A (en) * | 2017-07-05 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of blood vessel clip |
| CN109875636A (en) * | 2019-03-06 | 2019-06-14 | 无锡市第二人民医院 | A kind of degradable magnesium alloy hemorrhoid clip assembly adding bletilla striata gel coating |
| CN113183096A (en) * | 2021-04-23 | 2021-07-30 | 神华神东煤炭集团有限责任公司 | Split pin bending pliers |
-
2015
- 2015-08-19 CN CN201520628601.7U patent/CN205019110U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105902290A (en) * | 2015-12-22 | 2016-08-31 | 杨西群 | Titanium nickel-based shape memory alloy tissue closing clip |
| CN108236484A (en) * | 2016-12-27 | 2018-07-03 | 江苏风和医疗器材股份有限公司 | Hemostatic clamp |
| CN108236483A (en) * | 2016-12-27 | 2018-07-03 | 江苏风和医疗器材股份有限公司 | Hemostatic clamp |
| CN109199511A (en) * | 2017-07-03 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of surgical instruments |
| CN109199509A (en) * | 2017-07-03 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of absorbable surgical instruments |
| CN109199516A (en) * | 2017-07-05 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of absorbable blood vessel folder |
| CN109199515A (en) * | 2017-07-05 | 2019-01-15 | 江苏风和医疗器材股份有限公司 | A kind of blood vessel clip |
| CN109199515B (en) * | 2017-07-05 | 2020-10-09 | 江苏风和医疗器材股份有限公司 | Vascular clamp |
| CN109199516B (en) * | 2017-07-05 | 2020-10-09 | 江苏风和医疗器材股份有限公司 | Absorbable vascular clamp |
| CN109875636A (en) * | 2019-03-06 | 2019-06-14 | 无锡市第二人民医院 | A kind of degradable magnesium alloy hemorrhoid clip assembly adding bletilla striata gel coating |
| CN113183096A (en) * | 2021-04-23 | 2021-07-30 | 神华神东煤炭集团有限责任公司 | Split pin bending pliers |
| CN113183096B (en) * | 2021-04-23 | 2022-07-26 | 神华神东煤炭集团有限责任公司 | Split pin bending pliers |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190917 Address after: The new town of Pudong New Area Nanhui lake west two road 201306 Shanghai City No. 888 building C Patentee after: Shanghai Medical Technology (Shanghai) Co., Ltd. Address before: 200240 Dongchuan Road, Shanghai, No. 800, No. Patentee before: Shanghai Jiao Tong University |