CN209826824U - Laparoscope tissue clamp - Google Patents

Laparoscope tissue clamp Download PDF

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Publication number
CN209826824U
CN209826824U CN201920363462.8U CN201920363462U CN209826824U CN 209826824 U CN209826824 U CN 209826824U CN 201920363462 U CN201920363462 U CN 201920363462U CN 209826824 U CN209826824 U CN 209826824U
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China
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rod
sheet
clamping
torsion spring
laparoscopic
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CN201920363462.8U
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Chinese (zh)
Inventor
肖硕萌
高小劲
赵平
唐令超
丁志
周祥
陈小东
徐锐
赵法之
杨超
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Sichuan Cancer Hospital
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Sichuan Cancer Hospital
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Abstract

The utility model relates to a laparoscope tissue clamp, which comprises a torsional spring, two operating rods, a first connecting rod, a second connecting rod and two clamping heads, wherein the number of turns of the torsional spring is more than or equal to 1, two ends of the torsional spring are respectively connected with a torque arm, one end of each of the two operating rods is respectively connected with the torque arm, the other end of each of the two operating rods is respectively connected with the first connecting rod and the second connecting rod, and the torque arms are used for enabling the two operating rods to be coplanar; a notch is formed in the length direction of the second connecting rod, the first connecting rod and the second connecting rod are crossed through the notch and are respectively connected with two clamping heads, and the clamping heads are of sheet structures; the utility model provides a peritoneoscope tissue clamp, compact structure, reasonable in design can be used for the centre gripping tissue, and not only the centre gripping is effectual, is difficult for damaging the tissue organ, can effectively increase the laparoscopic surgery art wild, and the tractive of being convenient for moreover is fixed, can liberate surgeon's both hands so that do more meticulous operation, is favorable to realizing subtracting hole or haplopore laparoscopic surgery.

Description

Laparoscope tissue clamp
Technical Field
The utility model relates to the technical field of surgical instruments, concretely relates to peritoneoscope tissue presss from both sides.
Background
The laparoscopic surgery has the advantages of less wound, less pain of a patient, less risk of infection and non-healing of an incision, quick postoperative recovery, hidden wound, beautiful appearance after healing and the like, and more doctors and patients are willing to select an operation mode of using the laparoscopic surgery; however, with the popularization of laparoscopes in various operations, a plurality of problems are inevitably solved; for example, for the operation of important organs in the deep part of the human body, there is a problem of how to expose the operative field and provide enough space for the operation.
In the prior art, laparoscope generally comprises a main knife and an assistant, and the surgical field is exposed by the left hand of the main knife and the two hands of the assistant; on one hand, the operation is complex, and the temporary use of the left hand of the main cutter is not beneficial to the fine operation of the main cutter; on the other hand, the forceps holder for pulling the tissue disclosed in the prior art generally has some defects, 1, the existing forceps holder has poor clamping effect, is not beneficial to fully exposing the surgical field, and is easy to damage the tissue and the organ; 2. after the forceps clamps clamp tissues or blood vessels, the forceps clamps are not convenient to fix; 3. the problem that the long-term retention cannot be realized by manual drawing is solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to improve the not enough that exists among the prior art, provide a peritoneoscope tissue clamp, can be used for centre gripping tissue or blood vessel, not only the centre gripping is effectual, can effectively increase the laparoscopic surgery art wild, and the tractive of being convenient for moreover is fixed, can liberate surgeon's both hands.
The utility model adopts the technical proposal that:
a laparoscope tissue clamp, which comprises a torsion spring, two operating rods, a first connecting rod, a second connecting rod and two clamping heads, wherein,
the number of turns of the torsion spring is greater than or equal to 1, two ends of the torsion spring are respectively connected with a torsion arm, one end of each of the two operating rods is respectively connected with the torsion arm, the other end of each of the two operating rods is respectively connected with the first connecting rod and the second connecting rod, and the torsion arms are used for enabling the two operating rods to be coplanar;
the clamping device comprises a first connecting rod, a second connecting rod, a clamping head and a clamping head, wherein a notch is formed in the length direction of the second connecting rod, the first connecting rod and the second connecting rod are crossed with each other and are respectively connected with the two clamping heads, and the clamping heads are of sheet structures.
Preferably, the number of turns of the torsion spring is 1 turn or 1.5 turns.
Preferably, the outer side surface of the operating rod is a plane or an inwardly concave arc surface, or is provided with anti-slip teeth.
Preferably, the operating rod is a square rod, and/or the first connecting rod and the second connecting rod are square rods.
Optionally, the clamping head is of a cuboid sheet structure.
Preferably, the two side surfaces of the first connecting rod are respectively provided with a groove, and the grooves are used for reducing the thickness of the first connecting rod and are matched with the width of the notches. So that the first connecting rod can pass through the notch and form a crossed structure with the second connecting rod.
Optionally, the clamping head is of an arc-shaped sheet structure or an arc-shaped sheet structure.
Optionally, the clamping head is of a circular sheet structure, or a circular sheet structure with a central groove at a middle position, or a circular sheet structure, or an elliptical sheet structure with a central groove at a middle position, or an elliptical ring sheet structure.
Optionally, the clamping head is of a strip-shaped sheet structure, and the length direction of the clamping head is parallel to the central axis of the torsion spring.
The clamping device further comprises two extension rods, wherein one ends of the two extension rods are respectively connected with the first connecting rod and the second connecting rod, and the other ends of the two extension rods are respectively connected with the clamping head; when the two clamping heads are contacted, the two extension rods are parallel to each other.
Furthermore, two mutually corresponding faces on the two clamping heads are respectively provided with teeth or concave-convex structures for increasing friction force.
Furthermore, the traction device comprises a puncture needle, a traction line and a lock ring, one end of the traction line is connected with the puncture needle, the other end of the traction line is connected with the lock ring, the lock ring is of a circular structure, and the lock ring is used for being connected with the torsion spring.
Compared with the prior art, use the utility model provides a pair of peritoneoscope tissue presss from both sides has following beneficial effect:
1. this peritoneoscope tissue clamp, compact structure, reasonable in design can be used for the centre gripping tissue, increases the laparoscopic surgery art wild, and not only the centre gripping is effectual, is difficult for haring the tissue organ, and the tractive of being convenient for moreover is fixed, can let the main sword left and right hands all liberate out, does more meticulous operation, is favorable to realizing subtracting hole or haplopore laparoscopic surgery.
2. In the tissue clamp of the laparoscope, the clamping heads have various structures, so that not only is the tissue clamp of the laparoscope diversified in product, but also the tissue clamp of the laparoscope is suitable for more occasions; and different clamping heads can be selected according to different tissues and organs, particularly blood vessels in different positions and different directions, and the clamping device is particularly suitable for the mode of surgical open surgical instruments.
3. The tissue clamp of the laparoscope can be fixed in an external traction mode, so that long-time traction can be realized, the hands of a surgeon can be liberated, and the surgeon can conveniently do more precise operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic three-dimensional structure diagram of a laparoscopic tissue clip provided in embodiment 1 of the present invention.
Fig. 2 is a schematic three-dimensional structure diagram of a laparoscopic tissue clip provided in embodiment 1 of the present invention.
Fig. 3 is a partial schematic view of fig. 2.
Fig. 4 is a top view of fig. 1.
Fig. 5 is a left side view of fig. 1.
Fig. 6 is a schematic structural diagram of a retractor provided in embodiment 1 of the present invention.
FIG. 7 is a schematic view of the retractor of this embodiment shown attached to a laparoscopic tissue clamp.
Fig. 8 is a top view of a laparoscopic tissue clip as provided in embodiment 2 of the present invention.
Fig. 9 is a left side view of fig. 8.
Fig. 10 is a left side view of a laparoscopic tissue clip according to embodiment 3 of the present invention, wherein the holding head has a circular sheet-like structure.
Fig. 11 is a left side view of a laparoscopic tissue clip according to embodiment 3 of the present invention, wherein the holding head has a circular ring-shaped sheet structure.
Fig. 12 is a left side view of a laparoscopic tissue clip according to embodiment 3 of the present invention, wherein the holding head has an oval sheet-like structure.
Fig. 13 is a left side view of a laparoscopic tissue clip according to embodiment 3 of the present invention, wherein the holding head has an elliptical ring-shaped sheet structure.
Fig. 14 is a left side view of a laparoscopic tissue clip according to embodiment 4 of the present invention, wherein the holding head has a circular arc-shaped sheet structure.
Fig. 15 is a schematic view of another laparoscopic tissue clamp provided in embodiment 4 of the present invention, wherein the clamping head has a circular arc-shaped sheet structure, and the difference from fig. 14 is that the direction of the clamping head is different.
Fig. 16 is a left side view of a laparoscopic tissue clip according to embodiment 5 of the present invention, wherein the holding head has a circular ring-shaped sheet structure.
Fig. 17 is a left side view of a laparoscopic tissue clip according to embodiment 5 of the present invention, wherein the holding head has a circular arc-shaped sheet structure.
Fig. 18 is a left side view of a laparoscopic tissue clip according to embodiment 6 of the present invention, wherein the holding head has a strip-shaped structure.
Fig. 19 is a partial schematic view from the right of fig. 18.
Description of the drawings
A torsion spring 101, a torsion arm 102, an operating rod 103, a first connecting rod 104, a second connecting rod 105, a clamping head 106, an extension rod 107, teeth 108,
the length of the notch 201, the groove 202,
a retractor 301, a puncture needle 302, a traction wire 303 and a lock ring 304.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, 2, 4 and 5, the present embodiment provides a laparoscopic tissue clamp, comprising a torsion spring 101, two operating rods 103, a first connecting rod 104, a second connecting rod 105 and two clamping heads 106, wherein,
the number of turns of the torsion spring 101 is greater than or equal to 1, and the torsion spring 101 is used for generating torsion when being squeezed by external force (in endoscopic surgery, the laparoscopic tissue clamp needs to be placed into an endosome of a patient, and then the torsion spring 101 is squeezed by a special clamp commonly used in the prior art), so that after the external force is removed, continuous clamping force can be provided or the initial state can be automatically recovered; two ends of the torsion spring 101 are respectively connected with a torsion arm 102, one end of each of the two operating rods 103 is respectively connected with the torsion arm 102, and the other end of each of the two operating rods 103 is respectively connected with the first connecting rod 104 and the second connecting rod 105; the torsion arm 102 is used to make the two operation levers 103 coplanar, that is, as shown in fig. 5, in the present embodiment, the torsion arm 102 is a curved lever, so that the extending directions of the two ends of the torsion spring 101 can be changed, so that the two operation levers 103 can be right in the cross section perpendicular to the central axis of the torsion spring 101 and at the middle position of the torsion spring 101, so that the two operation levers 103 are coplanar, and the torsion force of the torsion spring 101 can be evenly applied to the two operation levers 103;
in this embodiment, the operation levers 103 are used for bearing the extrusion of the external force, that is, when the laparoscopic tissue clamp needs to be opened, a user can respectively extrude (through the forceps holder dedicated for laparoscopic surgery, which will not be described further below) the two operation levers 103, on one hand, the torsion spring 101 can be compressed, so that the torsion spring 101 generates a torsion force, and on the other hand, the two clamping heads 106 can be opened (or called to be separated), so as to clamp the tissue organ;
in this embodiment, a notch 201 is formed along the length direction of the second connecting rod 105, as shown in fig. 1, the first connecting rod 104 and the second connecting rod 105 are intersected with each other through the notch 201, and are respectively connected to the two clamping heads 106, and the clamping heads 106 are both sheet-shaped structures; the clamping head 106 with the sheet structure is beneficial to increasing the contact area with tissues, improving the clamping effect, and being beneficial to more uniform pressure distribution and difficult to damage tissues and organs; in addition, in laparoscopic surgery, utilize this peritoneoscope tissue to press from both sides the centre gripping tissue after, can utilize the pull wire to pull this peritoneoscope tissue to press from both sides, both can realize the drawing to the tissue, can realize again that this peritoneoscope tissue presss from both sides fixed, not only be favorable to increasing the laparoscopic surgery art wild, can let the left and right hands of main sword all liberate moreover to carry out more meticulous operation, be favorable to realizing subtracting hole or single-port laparoscopic surgery.
Initially (i.e., the laparoscopic tissue clip is in a closed state), the laparoscopic tissue clip provided in this embodiment is as shown in fig. 1 or fig. 2, and at this time, the torsion spring 101 does not generate an elastic force (or referred to as a torsion force), or has a certain initial elastic force, so that the two clamping heads 106 can be tightly attached together; the two operating levers 103 are not only coplanar, but also parallel to each other; the two clamping heads 106 are parallel to each other and are tightly attached together; the first connecting rod 104 passes through the slot 201 at a position near one end of the slot 201 and intersects the second connecting rod 105.
As shown in fig. 1 or fig. 2, by way of example, in the present embodiment, the cross-sections of the torsion spring 101 and the torsion arm 102 are both circular.
In a preferred scheme, the number of turns of the torsion spring 101 can be 1 turn or 1.5 turns; as shown in the figure, for example, in the present embodiment, the number of turns of the torsion spring 101 is 1.5, and the two torsion arms 102 extend outward along the tangential direction of the circumference of the torsion spring 101, as shown in fig. 1 or fig. 2.
Since the operating rod 103 is used for bearing the external pressing force, in a preferred embodiment, the outer side surface of the operating rod 103 may be a flat surface, as shown in fig. 1 or fig. 2, or an inwardly concave arc surface, or provided with anti-slip teeth, so as to control the opening/closing of the laparoscopic tissue clip by the dedicated jaws.
As shown in fig. 1 or fig. 2, in a preferred embodiment, the operating rod 103 is a square rod, and/or the first connecting rod 104 and the second connecting rod 105 are square rods.
In a preferred embodiment of the present invention, the operating rod 103 and the first connecting rod 104 are integrally formed as a frame, and the operating rod 103 and the second connecting rod 105 are integrally formed as a frame; or, the operating rod 103, the first connecting rod 104, the second connecting rod 105, the torsion arm 102 and the torsion spring 101 are integrally formed members; the operating rod 103, the first connecting rod 104, the second connecting rod 105, the torsion arm 102, the torsion spring 101 and the clamping head 106 are integrally formed.
Optionally, in this embodiment, the clamping head 106 is a rectangular parallelepiped sheet-shaped structure, as shown in fig. 1 or fig. 2 or fig. 4 or fig. 5.
Preferably, two side surfaces of the first connecting rod 104 are respectively provided with a groove 202, and the groove 202 is used for reducing the thickness of the first connecting rod 104 and is adapted to the width of the slot 201. So that the first connecting rod 104 can pass through the notch 201 and form a crossing structure with the second connecting rod 105.
In a preferred scheme, two mutually corresponding surfaces of the two clamping heads 106 are respectively provided with teeth or concave-convex structures for increasing friction force, so as to enhance the clamping effect, avoid the automatic falling of the laparoscopic tissue clamp in the use process and interfere with the surgical process, and are particularly suitable for clamping and traction of blood vessels, for example, as shown in fig. 3, two mutually corresponding surfaces of the clamping heads 106 are respectively provided with teeth 108 so as to increase friction force and improve the traction effect.
In a further scheme, the embodiment further comprises a retractor 301, the retractor 301 comprises a puncture needle 302, a retraction wire 303 and a lock ring 304, as shown in fig. 6, one end of the retraction wire 303 is connected to the puncture needle 302, the other end is connected to the lock ring 304, the lock ring 304 is a circular ring structure, and the lock ring 304 is used for connecting the torsion spring 101 so as to fix the laparoscopic tissue clip; for example, in laparoscopic surgery, the locking ring 304 may be passed through the middle of the torsion spring 101, and then the piercing needle 302 may be passed through the locking ring 304, as shown in fig. 7, to easily, conveniently and efficiently connect the retractor 301 to the laparoscopic tissue clip; then, the laparoscopic tissue clamp and the retractor 301 are sent into the body of the patient through a cavity mirror port arranged on the abdomen of the patient, and the tissue is clamped by the laparoscopic tissue clamp; finally, the puncture needle 302 passes through the abdomen of the patient from inside to outside, and the puncture needle 302 or the traction line 303 which passes out of the body is fixed (namely, the external fixation is realized), so that the traction on the tissue or the blood vessel can be realized very conveniently, the fixation on the tissue clamp of the laparoscope can be effectively realized, and the left hand and the right hand of the main knife are released, thereby facilitating the more precise operation; in addition, the external traction mode provided by the embodiment can not occupy the cavity mirror mouth and interfere other operation, and is beneficial to realizing the hole reduction or single-hole laparoscopic operation.
In a preferred embodiment, the length of the puncture needle 302 may be 5-7 cm.
In this embodiment, the present laparoscopic tissue clip has a maximum width of no more than 1cm, so that the present laparoscopic tissue clip is delivered into the patient through the laparoscopic port.
Further, in the present embodiment, the length of the gripping head 106 may be generally about 1 cm.
Example 2
The main difference between the present embodiment 2 and the above embodiment 1 is that, in the laparoscopic tissue clamp provided by the present embodiment, the number of turns of the torsion spring 101 is 1, as shown in fig. 8 and 9, at this time, the two torsion arms 102 respectively extend in two opposite directions along the tangential direction of the circumference of the torsion spring 101, and change the direction during the extension process, so that the two operation rods 103 connected thereto can be exactly coplanar with a portion of the torsion spring 101, thereby making the structure of the entire laparoscopic tissue clamp more symmetrical and more beautiful, and the distribution of the torsion force more uniform.
Example 3
The main difference between this embodiment 3 and the above embodiment 1 is that in the laparoscopic tissue clip provided in this embodiment, the clamping head 106 may be a circular sheet structure, as shown in fig. 10, or a circular sheet structure with a central groove at the middle position (i.e., the central groove does not penetrate through the clamping head 106), or a circular sheet structure (i.e., the central groove does not penetrate through the clamping head 106), as shown in fig. 11, or an oval sheet structure, as shown in fig. 12, or an oval sheet structure with a central groove at the middle position, or an oval ring sheet structure, as shown in fig. 13, which may facilitate clamping of a blood vessel.
Example 4
The main difference between this embodiment 4 and the above embodiment 1 is that in the laparoscopic tissue clamp provided in this embodiment, the clamping head 106 has an arc-shaped sheet structure, or a circular arc-shaped sheet structure, as shown in fig. 14 by way of example, in one case, the clamping head 106 has a circular arc-shaped sheet structure, and the axis of the clamping head 106 and the central axis of the torsion spring 101 are parallel to each other; in another case, as shown in fig. 15, the gripping head 106 has a circular arc sheet-like structure, and the axis of the gripping head 106 is perpendicular to the central axis of the torsion spring 101.
In a more preferred embodiment, the thickness of the clamping head 106 is gradually reduced and/or the width of the clamping head 106 is gradually reduced in a direction away from the torsion spring 101, which is more beneficial for clamping tissue, especially blood vessels.
Example 5
The main difference between this embodiment 5 and the above embodiment 1 is that the laparoscopic tissue clamp provided in this embodiment further includes two extension rods 107, one end of each of the two extension rods 107 is connected to the first connecting rod 104 and the second connecting rod 105, and the other end is connected to the clamping head 106; when the two gripping heads 106 are in contact, the two extension rods 107 are parallel to each other.
By way of example, when the gripping head 106 is a circular ring-shaped sheet-like structure, as shown in FIG. 16; when the clamping head 106 is an arc-shaped sheet structure or a circular arc-shaped sheet structure, the clamping head 106 is tangent to the extension rod 107, so that the structure is more smooth and beautiful, as shown in fig. 17.
Example 6
The main difference between the present embodiment 6 and the above embodiment 5 is that in the laparoscopic tissue clamp provided by the present embodiment, the two clamping heads 106 are respectively in a strip-shaped sheet-like structure, and the length direction of the clamping heads 106 is parallel to the central axis of the torsion spring 101.
For example, as shown in fig. 18 and 19, the holding head 106 is perpendicular to the operating rod 103 or the extension rod 107, and the length of the holding head 106 is usually not more than 1cm, so as to pass through the endoscopic opening smoothly and be delivered into the patient.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. A tissue clamp of laparoscope is characterized by comprising a torsion spring, two operating rods, a first connecting rod, a second connecting rod and two clamping heads, wherein,
the number of turns of the torsion spring is greater than or equal to 1, two ends of the torsion spring are respectively connected with a torsion arm, one end of each of the two operating rods is respectively connected with the torsion arm, the other end of each of the two operating rods is respectively connected with the first connecting rod and the second connecting rod, and the torsion arms are used for enabling the two operating rods to be coplanar;
the clamping device comprises a first connecting rod, a second connecting rod, a clamping head and a clamping head, wherein a notch is formed in the length direction of the second connecting rod, the first connecting rod and the second connecting rod are crossed with each other and are respectively connected with the two clamping heads, and the clamping heads are of sheet structures.
2. The laparoscopic tissue clip of claim 1, wherein said torsion spring has 1 or 1.5 turns.
3. The laparoscopic tissue clamp of claim 1, wherein said outer lateral surface of said operating rod is a flat surface or an inwardly concave curved surface, or is provided with anti-slip teeth.
4. The laparoscopic tissue clamp of claim 1, wherein said first connecting rod is provided with grooves at both sides thereof, respectively, said grooves being adapted to reduce the thickness of the first connecting rod and to the width of said slot.
5. The laparoscopic tissue clamp of claim 1, wherein said clamping head is a rectangular parallelepiped sheet structure, or said clamping head is an elongated sheet structure, and the length direction of the clamping head is parallel to the central axis of said torsion spring.
6. The laparoscopic tissue clip of claim 1, wherein said gripping head is an arcuate sheet structure or a circular arc sheet structure.
7. The laparoscopic tissue clip of claim 1, wherein said gripping head is a circular sheet structure, or a circular sheet structure with a central recess provided at an intermediate position, or a circular ring sheet structure, or an elliptical sheet structure with a central recess provided at an intermediate position, or an elliptical ring sheet structure.
8. The laparoscopic tissue clamp of any one of claims 1 to 7, further comprising two extension rods, one end of each of said two extension rods being connected to said first and second connecting rods, respectively, and the other end of each of said two extension rods being connected to said clamping head, respectively; when the two clamping heads are contacted, the two extension rods are parallel to each other.
9. The laparoscopic tissue clamp according to any one of claims 1 to 7, wherein two mutually corresponding faces of said two clamping heads are provided with teeth or a relief structure for increasing friction, respectively.
10. The laparoscopic tissue clamp of any one of claims 1 to 7, further comprising a retractor, said retractor comprising a puncture needle, a pull wire, and a locking ring, said pull wire being connected to said puncture needle at one end and to said locking ring at the other end, said locking ring having a ring-shaped configuration, said locking ring being adapted to be connected to said torsion spring.
CN201920363462.8U 2019-03-21 2019-03-21 Laparoscope tissue clamp Active CN209826824U (en)

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Application Number Priority Date Filing Date Title
CN201920363462.8U CN209826824U (en) 2019-03-21 2019-03-21 Laparoscope tissue clamp

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CN209826824U true CN209826824U (en) 2019-12-24

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