CN115813456B - Endocardial myocardial biopsy forceps and application method thereof - Google Patents

Endocardial myocardial biopsy forceps and application method thereof Download PDF

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Publication number
CN115813456B
CN115813456B CN202211579799.5A CN202211579799A CN115813456B CN 115813456 B CN115813456 B CN 115813456B CN 202211579799 A CN202211579799 A CN 202211579799A CN 115813456 B CN115813456 B CN 115813456B
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clamp
forceps
mouth
clamping
metal
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CN115813456A (en
Inventor
沈春健
付嘉玉
高顺
刘超
南洋
王程远
孟祥宇
吴文哲
朱永达
王琪
刘清泉
车艳
孙勇
穆鹏博
张婉莹
刘晴
郭厚福
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Second Affiliated Hospital Of Shenyang Medical College
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Second Affiliated Hospital Of Shenyang Medical College
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Abstract

The invention relates to the technical field of tissue forceps, in particular to an endocardial myocardial biopsy forceps and a using method thereof. According to the endocardial myocardial biopsy forceps and the application method thereof, the mouth sleeves on the forceps mouths are rotated in advance, the mouth sleeves eccentrically rotate along the column heads, so that the distance between the two mouth sleeves is adjusted, namely, the maximum clamping degree of the forceps mouths for clamping is controlled, excessive clamping on a patient tissue can be avoided, compared with the traditional method of manually controlling by operators, the heart endocardial myocardial biopsy forceps is more accurate and stable, experience influence coefficients are small, the adjacent two metal beads are utilized to drive the metal rod in the other forceps mouths correspondingly to rotate through mutual transmission of the convex patterns, the outer tooth surfaces are utilized to drive the mouth sleeves on the forceps mouths reversely along the inner tooth surfaces for passive rotation, the mouth sleeves on the two forceps mouths are controlled to be adjusted in a self-adapting mode, and the accuracy of adjustment between the two mouth sleeves is guaranteed.

Description

Endocardial myocardial biopsy forceps and application method thereof
Technical Field
The invention relates to the technical field of tissue forceps, in particular to an endocardial myocardial biopsy forceps and a using method thereof.
Background
Endocardial myocardial biopsy is a diagnostic tool that performs pathological analysis by clamping a small portion of myocardial tissue in a local ventricle, requiring the use of tissue clamps to clamp the relevant tissue during operation.
The tissue forceps are also called rat tooth forceps. The squeezing of the tissue is lighter than that of the vascular forceps, so that the tissue is generally used for clamping soft tissue and is not easy to slip, for example, the tissue is clamped and pulled to be cut off, the operation is facilitated, and the gauze pad and subcutaneous tissue at the edge of the incision are clamped, so that the tissue in the incision is prevented from being polluted.
The tissue forceps are divided into two types of damaged and nondestructive according to the depth of teeth at the front end of the forceps, the tooth depth is the tissue forceps with damage, the clamping force is strong, the tissue forceps are not easy to slip off, the tissue forceps are used for clamping soft tissues and skin flaps such as the lesion parts which are cut by clamping traction, the operation is facilitated, the gauze pad of the forceps jaws and subcutaneous tissues at the edge of the incision are prevented from being polluted by tissues in the incision, the tissue forceps with nondestructive teeth are shallow, and tissue forceps with different lengths can be selected for clamping closed blood vessels according to the depth of the tissues, so that the tissue forceps squeeze the tissues slightly compared with the vascular forceps.
Especially, the non-invasive tissue forceps are mainly used for avoiding damage to related tissue parts, so when the tissue forceps are used, operators are required to perform certain force control according to the jaw difference of different tissues, the force control of the tissue forceps at present mainly depends on the experience operation of the operators, the limitation is larger, and the accuracy is easy to be interfered.
In view of this, we propose an endocardial myocardial biopsy forceps and a method of use thereof.
Disclosure of Invention
The invention aims to provide an endocardial myocardial biopsy forceps and a use method thereof, which are used for solving the problems that the force control of the tissue forceps in the background technology mainly depends on the experience operation of operators, the limitation is large, and the accuracy is easy to be interfered. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an endocardial myocardial biopsy forceps, includes two pincers bodies, two the front end of pincers body all is established to the pincers mouth, and is provided with the roll adjustment head on two pincers mouths, two the deflection that the rear end of pincers body deviate from each other is established to the handle, and the middle part of two pincers bodies all establishes to the pincers cheek, two the breach has all been seted up to opposite one side on pincers cheek surface, and two pincers cheek are through the mutual gomphosis of breach and carry out rotation connection.
Preferably, the distance adjusting head comprises two column heads which are respectively and fixedly connected to the front end surfaces of the two clamp mouths, the two column heads are respectively provided with a mouth sleeve, one end of the mouth sleeve opposite to the column head is provided with a column hole along the axial direction, the column hole is eccentrically arranged along the central axis of the column head, and the mouth sleeve is rotatably sleeved on the column head through the column hole.
The inside of the clamp mouth is provided with a parallel piece which enables the two mouth sleeves to mutually drive.
The side surface of the mouth sleeve is convexly provided with a plurality of gear rings, and the upper gear ring and the lower gear ring are arranged in a staggered manner.
Preferably, the parallel connection piece comprises an inner hole formed in the clamp mouth, through grooves are formed in opposite sides of the surfaces of the two column heads, and the two through grooves are respectively communicated with the corresponding inner holes.
The inner hole is rotationally connected with a metal rod, one end of the metal rod extends into the through groove, an outer tooth surface is arranged at the end part of the metal rod, which is positioned in the through groove, an inner tooth surface meshed with the outer tooth surface is arranged on the inner wall of the column hole, and the metal rod drives the nozzle sleeve to rotate along the inner tooth surface through the outer tooth surface when rotating.
Two opposite sides of pincers mouth surface and be close to pincers cheek department and all set up the recess, and two recesses communicate with the hole that corresponds respectively, the remaining one end of metal pole extends to in the recess, and the tip fixedly connected with metal pearl that the metal pole is arranged in the recess, two the surface of metal pearl all protruding have the burr, one of them the metal pearl drives another metal pearl through the burr when rotatory and carries out synchronous rotation.
Preferably, the groove bottom of the groove is concave inwards to form an embedded groove, the inner wall of the embedded groove is convexly provided with clamping lines, and the metal beads are embedded into the embedded groove to lock the convex patterns along the clamping lines.
Preferably, the tail ends of the handles are fixedly provided with finger rings.
Preferably, the tail end of the handle is fixedly connected with clamping teeth, the clamping teeth on the two handles are arranged in a staggered mode, and the insections on the surfaces of the two clamping teeth are arranged in opposite directions.
Preferably, the notch is provided with a perforation, and the perforation on the two forceps bodies movably penetrates through the single rotating shaft to be connected in a rotating way.
A method for using endocardial myocardial biopsy forceps, comprising the following steps:
s1, a gear ring of the tissue forceps for contacting the tissue of a patient is shallower, the tissue forceps belong to non-invasive tissue forceps, blood vessels can be closed by clamping, tissue forceps with different lengths are selected according to the depth of the tissue, the tissue forceps squeeze the tissue lighter than vascular forceps, fingers penetrate into finger rings and push handles to deflect mutually along a rotating shaft, and clamping can be performed;
s2, before clamping tissues of a patient, according to the difference of clamping requirements, if clamping with different forces is carried out on different tissue parts, the mouth sleeve on the clamp mouth can be rotated in advance, and at the moment, the mouth sleeve eccentrically rotates along the column head, so that the distance between the two mouth sleeves is adjusted, namely the maximum clamping degree of the clamping of the clamp mouth is controlled;
s3, when an operator rotates a mouth sleeve on one of the pliers mouths to adjust the distance, an inner tooth surface on the inner side of the mouth sleeve drives a metal rod and corresponding metal beads to rotate along an outer tooth surface, and the metal rod in the other pliers mouth is correspondingly driven to rotate by utilizing mutual transmission of convex patterns between two adjacent metal beads, and the metal rod drives the mouth sleeve on the pliers mouth to passively rotate along the inner tooth surface in a reverse direction by utilizing an outer tooth surface;
s4, when the gap between the nozzle sleeves is adjusted, and the handles are pushed to deflect each other along the rotating shaft to clamp, the included angle between the two clamp nozzles is gradually reduced, so that the two metal beads are mutually extruded, the metal beads are pressed into the caulking groove along the groove, at the moment, the convex patterns on the surfaces of the metal beads and the clamping patterns in the caulking groove are mutually embedded and locked, and the metal rods and the nozzle sleeves are correspondingly blocked, so that the nozzle sleeves are prevented from deflecting in the clamping process, and the metal beads, the metal rods and the nozzle sleeves can be automatically unlocked after the clamp is released.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the mouth sleeve on the clamp mouth is rotated in advance to eccentrically rotate along the column head, so that the distance between the two mouth sleeves is adjusted, namely the maximum clamping degree of the clamp mouth clamping is controlled, excessive clamping on tissues of a patient can be avoided, and compared with the prior art that the clamp mouth is manually controlled by an operator, the clamp mouth is more accurate and stable, and has a small influence coefficient due to experience.
According to the invention, when the gap adjustment is performed by rotating the mouth sleeve on one of the pliers mouths, the inner tooth surface on the inner side of the mouth sleeve drives the metal rod and the corresponding metal bead to rotate along the outer tooth surface, and the metal rod in the other pliers mouth is correspondingly driven to rotate by utilizing the mutual transmission of the convex lines between the two adjacent metal beads, and the outer tooth surface is utilized to reversely drive the mouth sleeve on the pliers mouth to passively rotate along the inner tooth surface, so that the mouth sleeves on the two pliers mouths are controlled to perform self-adaptive adjustment, and the adjustment accuracy between the two mouth sleeves is ensured.
In the invention, when the pliers are clamped, the included angle between the two pliers mouths is gradually reduced, so that the two metal beads are mutually extruded, the metal beads are pressed into the caulking groove along the groove, the convex lines on the surfaces of the metal beads and the clamping lines in the caulking groove are mutually embedded and locked, and the metal rod and the mouth sleeve are correspondingly blocked, so that the mouth sleeve cannot deflect in the process of the pliers clamping, and after the pliers are loosened, the metal beads, the metal rod and the mouth sleeve can be automatically unlocked, and the adjustment of the mouth sleeve interval cannot be influenced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is a perspective cross-sectional view of the present invention;
FIG. 4 is an enlarged view of the invention at B in FIG. 3;
FIG. 5 is an enlarged view of the invention at C in FIG. 3;
FIG. 6 is an exploded view of the body and metal bar of the present invention;
FIG. 7 is an enlarged view of the invention at D in FIG. 6;
FIG. 8 is an enlarged view of the invention at E in FIG. 6;
FIG. 9 is an exploded view from the bottom perspective of the present invention;
fig. 10 is an enlarged view of the invention at F in fig. 9.
In the figure: 1. a clamp body; 11. a clamp mouth; 12. a distance adjusting head; 121. column head; 122. a mouth sleeve; 123. a post hole; 124. a parallel member; 1241. an inner bore; 1242. a through groove; 1243. a metal rod; 1244. an outer tooth surface; 1245. an inner tooth surface; 1246. a groove; 1247. a metal bead; 1248. a relief; 1249. a caulking groove; 12410. clamping lines; 125. a gear ring; 13. a handle; 14. a cheek of the pliers; 15. and (5) a notch.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 10, the present invention provides a technical solution: the utility model provides an endocardial myocardial biopsy forceps, including two pincers bodies 1, the front end of two pincers bodies 1 all is established to pincers mouth 11, and is provided with roll adjustment head 12 on two pincers mouths 11, and the deflection that the rear end of two pincers bodies 1 deviate from each other is established to handle 13, and the middle part of two pincers bodies 1 all is established to pincers face 14, and breach 15 has all been seted up to opposite one side on two pincers face 14 surface, and two pincers face 14 inlay each other and carry out rotation connection through breach 15, promote handle 13 along tie point deflection can carry out the pincers and press from both sides each other.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 10, the distance-adjusting head 12 includes two studs 121 fixedly connected to the front end surfaces of two pliers nozzles 11, and two studs 121 are each provided with a nozzle sleeve 122, one end of the nozzle sleeve 122 opposite to the stud 121 is provided with a cylindrical hole 123 along the axial direction, the cylindrical hole 123 is eccentrically disposed along the central axis of the stud 121, the nozzle sleeve 122 is rotatably sleeved on the stud 121 through the cylindrical hole 123, and the nozzle sleeve 122 can eccentrically rotate along the stud 121, so that the distance between the two nozzle sleeves 122 is adjusted, a rubber surface is disposed in the cylindrical hole 123 and is in interference sleeve connection with the stud 121, so that the nozzle sleeve 122 can be prevented from freely rotating;
a parallel piece 124 which drives the two nozzle sleeves 122 mutually is arranged in the clamp nozzle 11;
the side surface of the mouth sleeve 122 is convexly provided with a plurality of gear rings 125, and the upper gear ring 125 and the lower gear ring 125 are arranged in a staggered way.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 10, the parallel member 124 includes an inner hole 1241 formed inside the clamp mouth 11, and two through slots 1242 are formed on opposite sides of the surfaces of the two column heads 121, and the two through slots 1242 are respectively communicated with the corresponding inner holes 1241;
the inner hole 1241 is rotatably connected with a metal rod 1243, one end of the metal rod 1243 extends into the through groove 1242, the end of the metal rod 1243 positioned in the through groove 1242 is provided with an outer tooth surface 1244, the inner wall of the column hole 123 is provided with an inner tooth surface 1245 meshed with the outer tooth surface 1244, and the metal rod 1243 drives the mouth sleeve 122 to rotate along the inner tooth surface 1245 through the outer tooth surface 1244 when rotating;
the opposite sides of the surfaces of the two pliers mouths 11 and the positions close to the pliers cheeks 14 are provided with grooves 1246, the two grooves 1246 are respectively communicated with corresponding inner holes 1241, the remaining ends of the metal rods 1243 extend into the grooves 1246, the end parts of the metal rods 1243 in the grooves 1246 are fixedly connected with metal beads 1247, the inner tooth surfaces 1245 on the inner sides of the mouth sleeves 122 can drive the metal rods 1243 and the corresponding metal beads 1247 to rotate along the outer tooth surfaces 1244, the metal rods 1243 can also utilize the outer tooth surfaces 1244 to reversely drive the mouth sleeves 122 on the pliers mouths 11 along the inner tooth surfaces 1245 to passively rotate, protruding ribs 1248 are respectively arranged on the surfaces of the two metal beads 1247, and one metal bead 1247 drives the other metal bead 1247 to synchronously rotate through the protruding ribs 1248 when rotating.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 10, the groove bottom of the groove 1246 is concave inward to form a caulking groove 1249, and the inner wall of the caulking groove 1249 is convexly provided with a clamping groove 12410, and after the metal bead 1247 is embedded into the caulking groove 1249, the convex pattern 1248 is locked along the clamping groove 12410.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 10, the end of the handle 13 is fixedly provided with a finger ring, and an operator can more stably operate the handle 13 by penetrating a finger into the finger ring, so as to ensure the stability of the forceps holder.
In this embodiment, as shown in fig. 1, 2, 3, 4, and 5 to 10, the tail end of the handle 13 is fixedly connected with a latch, the latches on the two handles 13 are arranged in a staggered manner, the teeth on the surfaces of the two latches are arranged in opposite directions, and when the clamp mouth 11 is controlled by the opposite press handle 13 to clamp, the latches on the two handles 13 are mutually clamped to lock the clamping state, and the two handles 13 are pushed to transversely deviate to unlock the latches.
In this embodiment, as shown in fig. 1, 2, 3, 4, 5 to 10, the notch 15 is provided with a through hole, the through holes on the two forceps bodies 1 movably penetrate through a single rotating shaft to be rotationally connected, and the two forceps bodies 1 are connected into a whole through the rotating shaft and deflect mutually along the rotating shaft to perform the clamping action.
A method for using endocardial myocardial biopsy forceps, comprising the following steps:
s1, a gear ring 125 of the tissue forceps for contacting the tissue of a patient is shallower, the tissue forceps belong to non-invasive tissue forceps, blood vessels can be closed by clamping, tissue forceps with different lengths are selected according to the depth of the tissue, the tissue forceps are lighter than vascular forceps in terms of squeezing, fingers penetrate into finger rings and push handles 13 to deflect mutually along rotating shafts, and clamping can be performed;
s2, before clamping tissues of a patient, according to the difference of clamping requirements, if clamping with different forces is carried out on different tissue parts, the mouth sleeve 122 on the clamp mouth 11 can be rotated in advance, and at the moment, the mouth sleeve 122 eccentrically rotates along the column head 121, so that the distance between the two mouth sleeves 122 is adjusted, namely the maximum clamping degree of clamping of the clamp mouth 11 is controlled;
s3, when an operator rotates the mouth sleeve 122 on one of the pliers mouths 11 to adjust the distance, the inner tooth surface 1245 on the inner side of the mouth sleeve 122 drives the metal rod 1243 and the corresponding metal bead 1247 to rotate along the outer tooth surface 1244, and the metal rod 1243 in the other pliers mouth 11 is correspondingly driven to rotate by utilizing the mutual transmission of the convex lines 1248 between the two adjacent metal beads 1247, and the metal rod 1243 drives the mouth sleeve 122 on the pliers mouth 11 reversely along the inner tooth surface 1245 by utilizing the outer tooth surface 1244 to rotate passively;
s4, when the adjustment of the spacing between the nozzle sleeves 122 is completed and the handles 13 are pushed to deflect each other along the rotating shaft to clamp, the included angle between the two clamp nozzles 11 is gradually reduced, so that the two metal beads 1247 are mutually extruded, the metal beads 1247 are pressed into the embedded grooves 1249 along the grooves 1246, at the moment, the convex lines 1248 on the surfaces of the metal beads 1247 and the clamping lines 12410 in the embedded grooves 1249 are mutually embedded and locked, and the metal rods 1243 and the nozzle sleeves 122 are correspondingly blocked, so that the nozzle sleeves 122 cannot deflect in the clamping process, and after the clamping is released, the metal beads 1247, the metal rods 1243 and the nozzle sleeves 122 can be automatically unlocked.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. Endocardial myocardial biopsy forceps comprising two forceps bodies (1), characterized in that: the front ends of the two clamp bodies (1) are respectively provided with a clamp mouth (11), the two clamp mouths (11) are provided with distance adjusting heads (12), the rear ends of the two clamp bodies (1) deviate from each other and are provided with handles (13), the middle parts of the two clamp bodies (1) are respectively provided with clamp cheeks (14), the opposite sides of the surfaces of the two clamp cheeks (14) are respectively provided with a notch (15), and the two clamp cheeks (14) are mutually embedded and rotationally connected through the notches (15);
the distance adjusting head (12) comprises two column heads (121) which are respectively and fixedly connected to the front end surfaces of the two clamp nozzles (11), the two column heads (121) are respectively provided with a nozzle sleeve (122), one end of each nozzle sleeve (122) opposite to each column head (121) is provided with a column hole (123) along the axial direction, the column holes (123) are eccentrically arranged along the central axis of each column head (121), and the nozzle sleeves (122) are rotatably sleeved on the column heads (121) through the column holes (123);
a parallel piece (124) which drives the two nozzle sleeves (122) to each other is arranged in the clamp nozzle (11);
a plurality of gear rings (125) are convexly arranged on the side surface of the mouth sleeve (122), and the upper gear ring and the lower gear ring (125) are arranged in a staggered manner;
the parallel connection piece (124) comprises an inner hole (1241) formed in the clamp mouth (11), through grooves (1242) are formed in opposite sides of the surfaces of the two column heads (121), and the two through grooves (1242) are respectively communicated with the corresponding inner holes (1241);
the inner hole (1241) is rotationally connected with a metal rod (1243), one end of the metal rod (1243) extends into the through groove (1242), an outer tooth surface (1244) is formed at the end part of the metal rod (1243) positioned in the through groove (1242), an inner tooth surface (1245) meshed with the outer tooth surface (1244) is formed on the inner wall of the column hole (123), and the metal rod (1243) drives the mouth sleeve (122) to rotate along the inner tooth surface (1245) through the outer tooth surface (1244) when rotating;
grooves (1246) are formed in the opposite sides of the surfaces of the two clamp mouths (11) and close to the clamp cheeks (14), the two grooves (1246) are respectively communicated with corresponding inner holes (1241), the remaining ends of the metal rods (1243) extend into the grooves (1246), metal beads (1247) are fixedly connected to the ends of the metal rods (1243) located in the grooves (1246), protruding ribs (1248) are respectively arranged on the surfaces of the two metal beads (1247), and one metal bead (1247) drives the other metal bead (1247) to synchronously rotate through the protruding ribs (1248) when rotating;
the groove bottom of the groove (1246) is concavely inwards provided with an embedded groove (1249), the inner wall of the embedded groove (1249) is convexly provided with a clamping groove (12410), and the metal bead (1247) is embedded into the embedded groove (1249) to lock the convex pattern (1248) along the clamping groove (12410).
2. An endocardial myocardial biopsy forceps as defined in claim 1, wherein: the tail ends of the handles (13) are fixedly provided with finger rings.
3. An endocardial myocardial biopsy forceps as defined in claim 1, wherein: the tail end of the handle (13) is fixedly connected with clamping teeth, the clamping teeth on the two handles (13) are arranged in a staggered mode, the tooth patterns on the surfaces of the two clamping teeth are arranged in opposite directions, and the clamping handle (13) is opposite to the clamping handle to control the clamp mouth (11) to clamp.
4. An endocardial myocardial biopsy forceps as defined in claim 1, wherein: the notch (15) is provided with a perforation, and the perforation on the two pliers bodies (1) is movably penetrated through a single rotating shaft to be connected in a rotating way.
CN202211579799.5A 2022-12-09 2022-12-09 Endocardial myocardial biopsy forceps and application method thereof Active CN115813456B (en)

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WO1997017033A2 (en) * 1995-11-07 1997-05-15 Karl Storz Gmbh & Co. Tongs for the bipolar coagulation of biological tissue
CN201631307U (en) * 2009-12-30 2010-11-17 史党民 Laparoscope tissue forceps with replaceable forcep head

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