CN107981908B - Anti-offset tissue clamp - Google Patents
Anti-offset tissue clamp Download PDFInfo
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- CN107981908B CN107981908B CN201711479531.3A CN201711479531A CN107981908B CN 107981908 B CN107981908 B CN 107981908B CN 201711479531 A CN201711479531 A CN 201711479531A CN 107981908 B CN107981908 B CN 107981908B
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- offset component
- offset
- teeth
- clamping arm
- arm
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- 239000002861 polymer material Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 8
- 239000004626 polylactic acid Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 210000004204 blood vessel Anatomy 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000002792 vascular Effects 0.000 description 9
- 230000002439 hemostatic effect Effects 0.000 description 7
- 230000003872 anastomosis Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 201000001352 cholecystitis Diseases 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000037062 Polyps Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000002192 cholecystectomy Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920006237 degradable polymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/122—Clamps or clips, e.g. for the umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Reproductive Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to an anti-offset tissue clamp which is formed by molding an absorbable polymer material and comprises a first clamping arm and a second clamping arm which are connected through an elastic hinge, wherein the inner wall surface of the first clamping arm is provided with first anti-offset components consisting of sequentially staggered chain teeth on two sides of a central line along the central line of the clamping arm, the inner wall surface of the second clamping arm is provided with second anti-offset components consisting of sequentially staggered chain teeth on two sides of the central line along the central line of the clamping arm, and the chain teeth of the first anti-offset components and the chain teeth of the second anti-offset components can be mutually matched to form a zipper shape. The anti-offset component can form a sealing line at the center line of the clamping wall, can prevent blood vessel from seeping and increase transverse friction force to the greatest extent, prevents transverse offset, and can increase lateral friction force and prevent longitudinal offset by anti-skid lines.
Description
Technical Field
The invention relates to a medical instrument, in particular to an anti-offset tissue clamp.
Background
Tissue clips, also known as vascular clips, ligature clips, hemostatic clips, are used to clamp vascular and ductal tissue in surgical procedures, mainly minimally invasive laparoscopic procedures. For example, the hemostatic and ligature closure effects can be achieved by clamping the cholecyst canal and the cholecyst artery in cholecystectomy of patients with cholecystitis, calculous cholecystitis and cholecyst polyp. The conventional method for early ligation of blood vessels or tissues is needle-line anastomosis, but the needle-line anastomosis has unavoidable defects of great damage to the intima of the blood vessels, complex anastomosis operation, long time consumption and the like, so that the trend of replacing the needle-line anastomosis is gradually seen from the advent of vascular clamps. The original vascular clamps are mainly made of metal materials, such as titanium clamps, silver clamps, stainless steel clamps and the like, and the vascular clamps are low in price and convenient to use, but are easy to loose, wander, fall off prematurely and the like, and the indwelling body can interfere with the postoperative optical image diagnosis; along with the release of the Wick clip by the Tailifu company 1999, the non-absorbable clip gradually opens the market, becomes a new selection mode of tissue ligation, improves the phenomena of loosening, wandering or premature falling off from the structural design, and can not interfere with the postoperative optical image diagnosis in the indwelling body, but can still generate potential harm in the indwelling body for a long time. In recent years, with the development of absorbable materials, absorbable biological clips are gradually introduced into the market, but the conventional absorbable clips still have various problems such as insufficient clamping force, insufficient anti-slip force, easy deviation in the laparoscopic clip application process and the like.
US7326223 discloses a ligating clip (LIGATING CLIP WITH INTEGRAL cuttinguide) with an integral cutting guide rail, and specifically discloses a hemostatic clip with a V-shaped bifurcation two-arm structure, which comprises a safety latch, an elastic hinge, an arch-shaped nail leg (clip body), an integrated anti-slip tooth and a protuberance. However, some problems still exist in use, mainly manifested in insufficient firmness, and the locking part can slip and easily deviate in the use process of the blood clamp.
CN 203776976U discloses a hemostatic clip of anti-drop, specifically discloses including first arm lock and the second arm lock that are arc structure, the one end of two arm locks adopts elastic hinge connection, and the free end is the hasp structure of mutually supporting, through a set of safe hasp that is negative and positive lock structure, the interlock to improve the fastness. CN 203776975U discloses a hemostatic clip, specifically discloses that the inner surfaces of two arcuate arms are of corresponding concave-convex structures, which is convenient for the engagement of the two arms, so that the clipped blood vessel or the pipeline tissue can be firmly closed; through the convex conical rack on the concave-convex surface, the friction coefficient is increased, the upper slipping is prevented, and the hemostatic and anti-leakage effects can be better realized. However, the two anti-falling hemostatic clips have limited practical application effects.
In summary, the prior art still lacks an anti-migration tissue clip that can meet the clinical needs of absorbable materials.
Disclosure of Invention
The invention aims to provide an anti-offset tissue clamp prepared from a degradable polymer material, which can meet clinical requirements, and the specific technical scheme is as follows:
the tissue clamp is formed by molding an absorbable high polymer material, and comprises a first clamp arm and a second clamp arm which are connected through an elastic hinge, wherein the first clamp arm and the second clamp arm are of arc structures and are mutually anastomotic in radian, the free end of the first clamp arm is provided with a hook part, the free end of the second clamp arm is provided with a hook groove matched with the hook part, the outer surface of the free end of the first clamp arm is provided with a first bulge, two ends of the groove are symmetrically provided with two cylindrical second bulge on the axis of the second clamp arm, the elastic hinge is provided with a hinge gap, the inner wall surface of the first clamp arm is provided with a first anti-offset member consisting of sequentially staggered zipper teeth along the two sides of the center line of the clamp arm, the first anti-offset member comprises a plurality of first anti-offset member teeth and a first anti-offset member tooth gap between a plurality of adjacent two zipper teeth, the inner wall surface of the second clamp arm is provided with a second anti-offset member consisting of sequentially staggered zipper teeth along the two sides of the center line of the clamp arm, the second anti-offset member is inserted between the second anti-offset member and the second anti-offset member teeth, and the second anti-offset member is inserted into the second anti-offset member at the second anti-offset member gap, and the second anti-offset member is formed between the second anti-offset member and the second anti-offset member teeth; the side walls of the first clamping arm and the second clamping arm are provided with anti-skid patterns.
The first anti-offset component and the second anti-offset component can be mutually matched when the tissue clamp is clamped to form a zipper-shaped sealing line, so that blood vessel bleeding can be prevented to the greatest extent, friction force is increased, and transverse offset is prevented; the lateral walls of the first clamping arm and the second clamping arm are provided with anti-skid patterns, and the anti-skid patterns can increase side friction force and prevent longitudinal offset.
Preferably, the first anti-offset member element configuration is identical to the second anti-offset member element configuration. The configuration is consistent, namely the sizes of the first anti-offset component teeth and the second anti-offset component teeth are the same, and the distance between the first anti-offset component teeth and the first anti-offset component teeth is equal to the distance between the second anti-offset component teeth and the second anti-offset component teeth.
The teeth are matched with each other, wave-like strips can be formed on two sides of the clamping line, and the force can be maximally diffused through the inclined plane or the cambered surface when the impact force is applied, so that the force applied in the direction perpendicular to the tissue clamping wall is weakened, the possibility of slipping of the tissue clamp is reduced, or the static friction force of the tissue clamp to vascular tissues is reduced, and the damage to blood vessels or tissues is reduced.
Preferably, the first anti-offset member element and the second anti-offset member element are both cylinders, and the cross section in the length direction of the first arm is a combination of positive multiple deformation or circular arc shape or both.
Preferably, the ratio of the length of the first anti-offset member element gap in the length direction of the first arm to the length of the first anti-offset member element in the length direction of the first arm is 0.5-1:1.
Preferably, the first anti-offset member element size is inconsistent with the second anti-offset member element size. When the sizes of the zipper teeth are inconsistent, the zipper-shaped zipper teeth are matched with each other to form two wavy-like strips on two sides of the clamping line, gaps exist between the zipper teeth, and the dispersion of impact force can be more facilitated, so that the force applied to the zipper teeth in the direction perpendicular to the tissue clamping wall is weakened, and the possibility of slipping of the tissue clamp is reduced.
Preferably, the first anti-offset member fastener element and the second anti-offset member fastener element are both semi-cylindrical, the sections in the length direction of the first clamp arm are arc-shaped, the ratio of the radius of the semicircular section of the first anti-offset member fastener element to the radius of the semicircular section of the first anti-offset member fastener element is 2-4:1, the ratio of the length of the first anti-offset member fastener element gap in the length direction of the first clamp arm to the length of the first anti-offset member fastener element in the length direction of the first clamp arm is 0.1-1:1, and the ratio of the length of the second anti-offset member fastener element gap in the length direction of the second clamp arm to the length of the second anti-offset member fastener element in the length direction of the second clamp arm is 0.5-1:1.
Preferably, the first anti-offset member element and the second anti-offset member element are both regular polygonal columns, the sections in the length direction of the first clamping arm are regular polygons, the ratio of the side length of the first anti-offset member element to the side length of the second anti-offset member element is 1.5-5:1, and the ratio of the length of the second anti-offset member element gap in the length direction of the second clamping arm to the length of the second anti-offset member element in the length direction of the second clamping arm is 0.5-1:1.
Preferably, the anti-skid pattern is a vertically and horizontally mixed pattern. The friction force of the vertically and horizontally mixed patterns is larger.
Preferably, the absorbable polymer material is polylactic acid, the molecular weight distribution of the polylactic acid is 38-60 ten thousand, and the viscosity is 2.6-3.8. The performance of the material can be enhanced by selecting proper molecular weight and viscosity.
Preferably, the polylactic acid has a shrinkage of 0.01 to 2%. The high polymer material with a certain shrinkage rate is selected, so that the friction coefficient of the tissue clamp is increased, and the anti-slip force is increased.
The invention has the beneficial effects that:
(1) The zipper-shaped anti-deflection component can form a sealing line at the center line of the clamping wall, so that vascular bleeding can be prevented to the greatest extent, the transverse friction force is increased, and the transverse deflection is prevented;
(2) When the tooth shapes are consistent, the zipper-shaped teeth are mutually matched, a section of wave-like strip can be formed on two sides of the clamping line, and the force can be maximally diffused through the inclined plane or the cambered surface when the impact force is applied, so that the applied force in the direction perpendicular to the tissue clamping wall is weakened, and the possibility of slipping of the tissue clamp is reduced;
(3) When the tooth configurations are inconsistent, the zipper-shaped teeth are mutually matched to form two wavy strips on two sides of the clamping line, and gaps exist between the teeth, so that the dispersion of impact force can be more facilitated, the force applied in the direction perpendicular to the tissue clamping wall is weakened, and the possibility of slipping of the tissue clamp is reduced;
(4) The anti-skid patterns can increase side friction and prevent longitudinal deflection.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the device;
fig. 2 is a partially enlarged view of the fastener element of embodiment 1;
fig. 3 is a partially enlarged view of the fastener element of embodiment 2;
reference numerals: the first clamping arm 1, the second clamping arm 2, the elastic hinge 3, the first protuberance 4, the hinge gap 5, the hook 6, the groove 7, the second protuberance 8, the anti-skid thread 9, the first anti-offset component element 10, the first anti-offset component element gap 11, the second anti-offset component element 12 and the second anti-offset component element gap 13.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
example 1
An anti-migration tissue clip, as shown in figure 1,
the tissue clamp capable of resisting deflection is formed by molding an absorbable polymer material, the tissue clamp comprises a first clamp arm 1 and a second clamp arm 2 which are connected through an elastic hinge 3, the first clamp arm 1 and the second clamp arm 2 are of arc structures and are mutually matched in radian, the free end of the first clamp arm 1 is provided with a hook part 6, the free end of the second clamp arm 2 is provided with a hook groove 7 matched with the hook part, the outer surface of the free end of the first clamp arm 1 is provided with a first bulge 4, two ends of the groove 7 are symmetrically provided with two cylindrical second bulge 8 by the axis of the second clamp arm 2, the elastic hinge 3 is provided with a hinge gap 5, the two sides of the inner wall surface of the first clamp arm 1 are provided with first anti-deflection members consisting of sequentially staggered zipper teeth along the center line of the clamp arm, each first anti-deflection member comprises a plurality of first anti-deflection member teeth 10 and a plurality of adjacent anti-deflection member teeth 11, the two sides of the second anti-deflection members are sequentially inserted into the first anti-deflection member teeth 11 along the center line of the second clamp arm 2, the two sides of the second anti-deflection member teeth 12 are sequentially inserted into the first anti-deflection member teeth 11, and the second anti-deflection member teeth 12 are sequentially inserted into the second anti-deflection member teeth 11 at the two sides of the second anti-deflection member teeth 1; the side walls of the first clamping arm 1 and the second clamping arm 2 are provided with anti-skid patterns 9. The first anti-offset component element 10 is inserted into the second anti-offset component element gap 13, the second anti-offset component element 12 is inserted into the first anti-offset component element gap 11, a zipper-shaped sealing line is formed at the central line of the first clamping arm 1 and the second clamping arm 2, so that vascular bleeding can be prevented to the greatest extent, and the friction force is increased to prevent transverse offset; the side walls of the first clamping arm 1 and the second clamping arm 2 are provided with anti-skid patterns 9 with longitudinal and transverse mixed patterns, and the anti-skid patterns 9 can increase side friction force and prevent longitudinal deflection.
The absorbable polymer material is polylactic acid, the molecular weight distribution of the polylactic acid is 38-60 ten thousand, and the viscosity is 2.6-3.8. The performance of the material can be enhanced by selecting proper molecular weight and viscosity. The shrinkage rate of the polylactic acid is 0.01-2%. The high polymer material with a certain shrinkage rate is selected, so that the friction coefficient of the tissue clamp is increased, and the anti-slip force is increased.
As shown in fig. 2, the configuration of the first anti-offset member element 10 is identical to that of the second anti-offset member element 12, the cross section of the first arm lock 1 in the length direction is a combination of a positive shape and a circular arc shape, the bottom of the first anti-offset member element 10 is positive multi-directional, and the top is circular arc. The ratio of the length of the first anti-offset member element gap 11 in the length direction of the first arm lock 1 to the length of the first anti-offset member element 10 in the length direction of the first arm lock 1 is 0.9:1.
When the sizes of the teeth are consistent, the teeth are matched with each other, wave-like strips can be formed on two sides of the clamping line, and the force can be maximally diffused through the inclined plane or the cambered surface when the impact force is applied, so that the force applied to the vertical direction of the tissue clamping wall is weakened, the possibility of slipping of the tissue clamp is reduced, or the static friction force of the tissue clamp to vascular tissues is reduced, and the damage to blood vessels or tissues is reduced.
Example 2
This embodiment only describes differences from the above-described embodiments.
As shown in fig. 3, the first anti-offset member element configuration is inconsistent with the second anti-offset member element configuration. The first anti-offset member element 10 and the second anti-offset member element 12 are both semi-cylindrical, the sections in the length direction of the first clamping arm 1 are all semi-circular, and the ratio of the radius of the semi-circular section of the first anti-offset member element 10 to the radius of the semi-circular section of the first anti-offset member element 12 is 1.5:1.
The ratio of the length of the first anti-offset member element gap 11 in the length direction of the first clamping arm 1 to the length of the first anti-offset member element 10 in the length direction of the first clamping arm 1 is 0.3:1; the ratio of the length of the second anti-offset member element gap 11 in the length direction of the second arm lock 1 to the length of the first anti-offset member element 10 in the length direction of the first arm lock 1 is 1:1.
When the sizes of the zipper teeth are inconsistent, the zipper-shaped zipper teeth are matched with each other to form two wavy-like strips on two sides of the clamping line, gaps exist between the zipper teeth, and the dispersion of impact force can be more facilitated, so that the force applied to the zipper teeth in the direction perpendicular to the tissue clamping wall is weakened, and the possibility of slipping of the tissue clamp is reduced.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (3)
1. The tissue clamp is formed by molding an absorbable high polymer material and comprises a first clamp arm and a second clamp arm which are connected through an elastic hinge, wherein the first clamp arm and the second clamp arm are of arc structures and are mutually anastomotic in radian, the free end of the first clamp arm is provided with a hook part, the free end of the second clamp arm is provided with a groove matched with the hook part, the outer surface of the free end of the first clamp arm is provided with a first bulge, two ends of the groove are symmetrically provided with two cylindrical second bulges by the axis of the second clamp arm, the elastic hinge is provided with a hinge gap, and the tissue clamp is characterized in that the inner wall surface of the first clamp arm is provided with a first anti-shifting member consisting of sequentially staggered zipper teeth along two sides of the center line of the clamp arm, the first anti-shifting member comprises a plurality of first anti-shifting member zipper teeth and a first anti-shifting member zipper tooth gap between the plurality of adjacent two zipper teeth, the inner wall surface of the second clamp arm is provided with a first anti-shifting member and a second anti-shifting member with a second shifting member which is sequentially staggered along two sides of the center line of the clamp arm, the second anti-shifting member is inserted between the second anti-shifting member and the second anti-shifting member, and the first anti-shifting member is inserted into the second anti-shifting member gap between the second anti-shifting member and the second anti-shifting member; the side walls of the first clamping arm and the second clamping arm are provided with anti-skid patterns;
the first anti-offset member element configuration is inconsistent with the second anti-offset member element configuration;
the first anti-offset component teeth and the second anti-offset component teeth are semi-cylindrical, the sections of the first anti-offset component teeth in the length direction of the first clamping arm are arc-shaped, the ratio of the radius of the semicircular section of the first anti-offset component teeth to the radius of the semicircular section of the first anti-offset component teeth is 2-4:1, the ratio of the length of the first anti-offset component teeth gap in the length direction of the first clamping arm to the length of the first anti-offset component teeth in the length direction of the first clamping arm is 0.1-1:1, and the ratio of the length of the second anti-offset component teeth gap in the length direction of the second clamping arm to the length of the second anti-offset component teeth in the length direction of the second clamping arm is 0.5-1:1;
or the first anti-offset component chain tooth and the second anti-offset component chain tooth are regular polygon columns, the sections of the first anti-offset component chain tooth and the second anti-offset component chain tooth in the length direction of the first clamping arm are regular polygons, the ratio of the side length of the first anti-offset component chain tooth to the side length of the second anti-offset component chain tooth is 1.5-5:1, and the ratio of the length of the second anti-offset component chain tooth gap in the length direction of the second clamping arm to the length of the second anti-offset component chain tooth in the length direction of the second clamping arm is 0.5-1:1;
the anti-skid patterns are vertically and horizontally mixed patterns.
2. The tissue clip of claim 1 wherein the absorbable polymeric material is polylactic acid having a molecular weight of 38 to 60 tens of thousands and a viscosity of 2.6 to 3.8.
3. The tissue clip of claim 2 wherein the polylactic acid has a shrinkage of 0.01% to 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711479531.3A CN107981908B (en) | 2017-12-29 | 2017-12-29 | Anti-offset tissue clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711479531.3A CN107981908B (en) | 2017-12-29 | 2017-12-29 | Anti-offset tissue clamp |
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| Publication Number | Publication Date |
|---|---|
| CN107981908A CN107981908A (en) | 2018-05-04 |
| CN107981908B true CN107981908B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711479531.3A Active CN107981908B (en) | 2017-12-29 | 2017-12-29 | Anti-offset tissue clamp |
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| CN (1) | CN107981908B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111317539A (en) * | 2018-12-14 | 2020-06-23 | 山东威瑞外科医用制品有限公司 | Tissue clamp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9282972B1 (en) * | 2012-10-14 | 2016-03-15 | Innovative Urololy, Llc | Surgical clips with penetrating locking mechanism and non-slip clamping surfaces |
| CN208725806U (en) * | 2017-12-29 | 2019-04-12 | 广东弘和医疗器械制造有限公司 | A kind of tissue folder of anti-offset |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6863675B2 (en) * | 2002-09-20 | 2005-03-08 | Pilling Weck Incorporated | Ligating clip with integral penetrating hook |
| US7326223B2 (en) * | 2004-01-22 | 2008-02-05 | Teleflex Medical Incorporated | Ligating clip with integral cutting guide |
| US10265079B2 (en) * | 2016-04-28 | 2019-04-23 | Grena Usa Llc | Polymeric ligating clip |
-
2017
- 2017-12-29 CN CN201711479531.3A patent/CN107981908B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9282972B1 (en) * | 2012-10-14 | 2016-03-15 | Innovative Urololy, Llc | Surgical clips with penetrating locking mechanism and non-slip clamping surfaces |
| CN208725806U (en) * | 2017-12-29 | 2019-04-12 | 广东弘和医疗器械制造有限公司 | A kind of tissue folder of anti-offset |
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| CN107981908A (en) | 2018-05-04 |
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