CN109044489B - Forceps for gynecological operation and using method thereof - Google Patents
Forceps for gynecological operation and using method thereof Download PDFInfo
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- CN109044489B CN109044489B CN201810862573.3A CN201810862573A CN109044489B CN 109044489 B CN109044489 B CN 109044489B CN 201810862573 A CN201810862573 A CN 201810862573A CN 109044489 B CN109044489 B CN 109044489B
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- forceps
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/30—Surgical pincettes without pivotal connections
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
Abstract
The invention discloses forceps for gynecological surgery, which comprise a forceps handle and two forceps arms, wherein one end of each forceps arm is connected with the forceps handle, the other end of each forceps arm is a forceps mouth in a free end form, a sliding groove is formed in the middle of the outer side of each forceps arm, a cavity is formed in each forceps mouth, a plurality of second through holes are formed in the lower side wall of each cavity, a tongue is arranged in each cavity, one end, close to the forceps handle, of each tongue is connected with the corresponding forceps arm, a plurality of movable teeth are arranged on the lower side surface of each tongue and correspond to the second through holes, the movable teeth penetrate through the corresponding second through holes in an adaptive mode, and one end, far away from the tongue, of each movable tooth penetrates through the lower side wall of each cavity and extends out of the inner side surface of each. The invention can use larger tooth height when needing to firmly clamp tumor, etc., and use smaller tooth height when needing fine operation or avoiding tissue damage caused by over clamping by tweezers, and does not need to frequently change the tweezers, thereby reducing the risk of tumor metastasis and improving the success rate of operation.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to forceps for gynecological operations and a using method thereof.
Background
Tumor (tumor) refers to a new organism (neograwth) formed by local tissue cell proliferation of the body under the action of various tumorigenic factors, because the new organism is mostly in the form of space-occupying block-shaped protrusion, also called neoplasms (neoplasms). Small tumors such as cyst ova, uterine fibroids, cervical polyps, etc. are frequently encountered in gynecology and the most effective treatment for this is surgical resection.
Generally, an operator holds a small tumor with forceps in one hand, cuts the tumor with surgical scissors in the other hand, and then takes out the cut tumor with forceps, which is a complicated operation. In addition, it is often difficult to grasp a tumor with inconspicuous protrusions when the forceps grasp the tumor. Furthermore, the removed tumor stays on nearby healthy tissue for a longer time to be taken out by forceps, which increases the contact time between the tumor tissue and the healthy tissue. Although most small tumors are benign, the tumor-free principle still needs to be followed in minor surgical resection to prevent as much as possible the spreading of tumors caused by accidental contact with malignant tumors. Accordingly, there remains a need to provide improved surgical forceps that overcome the above-mentioned technical problems of the prior art.
Disclosure of Invention
In order to solve the problems, the invention provides forceps for gynecological surgery, which comprise a forceps handle and two forceps arms, wherein one end of each forceps arm is connected with the forceps handle, the other end of each forceps arm is a forceps mouth in a free end form, a sliding groove is formed in the middle of the outer side of each forceps arm, a cavity is formed in each forceps mouth, a plurality of second through holes are formed in the lower side wall of each cavity, a tongue is arranged in each cavity, one end, close to the forceps handle, of each tongue is connected with the corresponding forceps arm, a plurality of movable teeth are arranged on the lower side surface of each tongue and correspond to the second through holes, and the movable teeth penetrate through the corresponding second through holes in an adaptive mode, so that one end, far away from the tongue, of each movable tooth penetrates through the lower side wall of the corresponding cavity and extends out of.
The invention can use larger tooth height when needing to firmly clamp tumor, etc., and use smaller tooth height when needing fine operation or avoiding tissue damage caused by over clamping by tweezers, and does not need to frequently change the tweezers, thereby reducing the risk of tumor metastasis and improving the success rate of operation.
Drawings
FIG. 1 is a schematic top view of the forceps for gynecological operation of the present invention;
FIG. 2 is a schematic sectional view of the forceps for gynecological operation of the present invention;
figure 3 is a schematic cross-sectional view of the forceps arms of the forceps of the invention in a first state;
figure 4 is a schematic cross-sectional view of the mouth of the forceps in a first state of the forceps of the invention;
FIG. 5 is a schematic cross-sectional view of the first projection of the forceps of the present invention in a first state;
figure 6 is a schematic cross-sectional view of the forceps arms of the forceps of the invention in a second state;
figure 7 is a schematic cross-sectional view of the pincer when the forceps of the invention are in the second state;
FIG. 8 is a schematic cross-sectional view of the second projection of the forceps of the invention in a second state;
FIG. 9 is a schematic view of the inner side of the forceps tips of the forceps of the present invention;
FIG. 10 is a schematic view of the structure of the inner side of the tongue of the forceps of the present invention;
wherein the reference numerals have the following meanings:
1-a forceps handle; 2-a first connection; 3-a forceps arm; 31-a sliding groove; 32-a first via; 33-a cavity; 331-a first bevel; 332-a second bevel; 333-a first projection; 334-a second projection; 335-a second through hole; 34-tongue; 341-movable teeth; 3411-a first movable tooth; 3421-second movable tooth; 3413-a third movable tooth; 342-a rib; 35-a third connecting portion; 351-a first arc surface; 352-second arc surface; 336-fixed teeth; 4-anti-slip wale; 5-forceps mouth; 51-the outer side of the forceps mouth; 52-inner side of forceps mouth; 53-left side of forceps mouth; 54-the right side of the forceps mouth; 6-push button; 61-a second connecting portion; 62-a push rod; 63-a first groove; 64-second groove.
Detailed Description
The present invention will be further described with reference to the following examples in order to facilitate understanding of those skilled in the art.
The forceps for gynecological operation of the invention as shown in figures 1-10 comprise a forceps handle 1 and two forceps arms 3 respectively connected with the forceps handle 1 through first connecting parts 2, wherein the first connecting parts 2 can be elastic sheets for restoring the two forceps arms 3 from a mutually folded state to a mutually separated state; the outer surface of the forceps arm 3 can be provided with anti-skidding convex lines 4 so as to avoid the slipping phenomenon when an operator uses the forceps; one end of the forceps arm 3 is connected with the forceps handle 1, the other end of the forceps arm is a forceps mouth 5 in a free end form, the forceps mouth 5 is provided with a left forceps mouth side surface 53 and a right forceps mouth side surface 54 which gradually get close from the near end to the far end, and the left forceps mouth side surface 53 and the right forceps mouth side surface 54 can be intersected at the far end to form a pointed or arc-shaped head so as to facilitate surgical operation; the tweezer 5 is internally provided with a cavity 33, the upper side wall (or called as the outer side wall) of the cavity 33 has an arc-shaped cross section and the thickness of the upper side wall is more than or equal to that of the lower side wall (or called as the inner side wall) with a basically horizontal lower surface, so that the strength of the tweezer can be obviously increased; the lower side wall of the cavity 33 is provided with a plurality of second through holes 335, a tongue 34 is arranged in the cavity 33, one end of the tongue 34 close to the forceps handle 1 is connected with the forceps arm 3, a plurality of movable teeth 341 are arranged on the lower side surface of the tongue 34 corresponding to the plurality of second through holes 335, and the movable teeth 341 are fittingly inserted through the corresponding second through holes 335, so that one end of the movable teeth 341, which is far away from the tongue 34 and has a circular arc-shaped end section, is inserted through the lower side wall of the cavity 33 and extends out of the inner side surface 52 of the forceps mouth to reach a first height or reach a second height which is larger than the first height.
The middle parts of the outer sides of the forceps arms 3 are respectively provided with a downward-concave strip-shaped sliding groove 31, the forceps arms 3 are internally provided with a first through hole 32 communicating the sliding groove 31 with the cavity 33, a push rod 62 is arranged in the first through hole 32 in a sliding mode, and the part of the push rod 62, which can enter the first through hole 32, can have a circular or other cross section matched with the cross section of the first through hole 32; one end of the push rod 62 extends into the sliding groove 31 and is connected with a push button 6 arranged on the upper side surface of the forceps arm 3 through a second connecting part 61, and the push button 6 is in sliding fit on the outer surface of the forceps arm 3 and always covers the sliding groove 31 so as to prevent foreign matters from entering the sliding groove 31; the outer surface of the push button 6 can be provided with anti-slip convex patterns which are adapted to the finger bellies of an operator so as to prevent the operator from slipping when pushing the push button 6; the other end of the push rod 62 extends into the cavity 33 and is positioned between the upper inner wall of the cavity 33 and the upper side surface of the tongue 34, and the upper inner wall of the cavity 33 is gradually close to the upper side surface of the tongue 34 from the direction close to the forceps handle 1 to the direction far away from the forceps handle. The inner wall of the upper side of the cavity 33 is provided with a first inclined surface 331 which is gradually close to the upper side of the tongue 34 from the direction close to the forceps handle 1 to the direction far away from the forceps handle 1, the proximal end of the first inclined surface 331 is provided with a first convex part 333 which protrudes downwards, and the distal end of the first inclined surface 331 is provided with a second convex part 334 which protrudes downwards; the distal end of the push rod 62 is provided with a first groove 63 on the upper side. The forceps have a first state that the push button 61 is close to the forceps handle 1 and a second state that the push button 61 is far away from the forceps handle 1; in the first state, the second connecting part 61 and the proximal end of the push rod 62 in the sliding groove 31 are close to one end of the sliding groove 31 close to the forceps handle 1, the first convex part 333 is embedded in the first groove 63, the upper side of the tongue 34 is close to the lower side of the push rod 62 and the second convex part 334, so that one end of the movable tooth 341 far away from the tongue 34 passes through the lower side wall of the cavity 33 and extends out of the inner side 52 of the forceps mouth to a first height; in the second state, the second connecting part 61 and the far end of the push rod 62 in the sliding groove 31 are close to the other end of the sliding groove 31 far away from the forceps handle 1, the second convex part 334 is embedded in the first groove 63, the upper side of the tongue part 34 is close to the lower side of the push rod 62, so that one end of the movable tooth 341 far away from the tongue part 34 passes through the lower side wall of the cavity 33 and extends out of the inner side 52 of the forceps mouth to a second height larger than the first height.
Further, a second inclined surface 332 is arranged between the first inclined surface 331 and the second convex portion 334, and an included angle between the second inclined surface 332 and the inner tweezer surface 52 is smaller than an included angle between the first inclined surface 331 and the inner tweezer surface 52, so that the thrust required for pushing the push rod 62 is reduced, and the second convex portion 334 is embedded in the first groove 63 to prevent the push rod 62 from sliding back and forth when the push button 6 is touched unintentionally.
Further, the first height is 0.5-2 times of the width of the movable tooth 341; preferably 0.8 to 1.2 times; more preferably about 1 fold. The second height is 1-10 times of the width of the movable tooth 341; preferably 2-6 times; more preferably about 3 times or 4 times. Preferably, the width of the movable tooth 341 is 0.2-1.5 mm; preferably 0.3-1 mm; more preferably 0.5 to 0.8 mm. The first height is selected to be beneficial to the clamping operation of the tweezers as far as possible under the condition of avoiding the damage to the clamped object; while the second height should be selected to primarily facilitate the grasping operation of the forceps.
Further, the section of the push rod 62 is in a crescent shape protruding upwards, a second groove 64 recessed upwards along the length direction of the push rod 62 is arranged on the lower side of the push rod 62, and a convex rib 342 protruding upwards and matched with the second groove is arranged on the upper side of the tongue portion 34. This advantageously guides the push rod 62 to slide along the tongue 34.
Further, the movable teeth 341 include a plurality of first movable teeth 3411 arranged along the length direction of the forceps mouth 5, and second and third movable teeth 3412 and 3413 provided on both sides of the first movable teeth 3411; preferably, the included angle between the second movable tooth 3412 or the third movable tooth 3413 and the first movable tooth 3411 is 0 to 30 degrees, such as 5 degrees, 10 degrees, 15 degrees, 20 degrees, and 25 degrees; preferably, the second movable teeth 3412 are arranged in a direction parallel to the tweezer mouth left side 53; preferably, the third movable tooth 3413 is arranged in a direction parallel to the tweezer mouth right side 54. The arrangement of the multiple rows of movable teeth is beneficial to improving the transverse (vertical to the length direction of the tweezers) clamping operation of the tweezers; in particular, when there is an angle between the rows of movable teeth, the lateral and longitudinal gripping operation of the forceps can be improved. In some cases, the movable tooth 341 may include only the first movable tooth 3411 without providing the second movable tooth 3412 and the third movable tooth 3413, which may further enhance the longitudinal grasping operation of the forceps and simplify the structure.
Further, the cross section of the first movable tooth 3411 is an elongated shape perpendicular to the length direction of the forceps mouth 5; the second movable teeth 3412 and the third movable teeth 3413 have an elongated cross section perpendicular to the arrangement direction thereof.
Further, the tongue 34 is connected with the forceps arm 3 through a third connection 35; preferably, the third connecting portion 35 is a spring plate; more preferably, the lower side of the third connecting portion 35 has a first arc surface 351 recessed upward, the left and right sides of the third connecting portion 35 have second arc surfaces 352 recessed inward, and the upper side of the third connecting portion 35 is a plane.
Further, the part of the inner side surface 52 of the forceps mouth, which is close to the forceps handle 1 and close to the second through hole 335, is also provided with a fixed tooth 336, the section shape of the fixed tooth 336 is similar to or the same as that of the movable tooth 341, and the height is basically equal to or slightly less than the first height, so that the condition that the forceps mouth cannot be completely folded in the first state is avoided.
In some embodiments, the method of using the forceps for gynecological surgery comprises: placing the forceps in a first state, so that the height of the movable tooth 341 extending out of the lower side face of the forceps mouth 5 from the second through hole 335 reaches a first height; and placing the forceps in a second state such that the movable tooth 341 protrudes from the second through hole 335 to a second height above the lower side of the mouth 5.
Further, the placing into the first state comprises: the push button 6 is pushed towards the forceps handle 1, so that the second connecting part 61 drives the push rod 62 to move towards the proximal end of the sliding groove 31, the first groove 16 is matched with the first convex part 333, and the tongue part 34 moves upwards until the height of the movable tooth 341 extending out of the lower side surface of the forceps mouth 5 from the second through hole 335 reaches a first height; preferably, the upward movement is driven by the elastic force of the second connecting portion 61 or is caused by the pressure applied to the distal end of the movable tooth 341; the placing into the second state comprises: the push button 6 is pushed in the direction away from the forceps handle 1, so that the second connecting part 61 drives the push rod 62 to move towards the far end of the sliding groove 31, the first groove 16 is matched with the second protrusion 334, the push rod 62 pushes the tongue 34 downwards under the extrusion of the upper inner wall of the cavity 33 until the height of the movable tooth 341 extending out of the lower side surface of the forceps mouth 5 from the second through hole 335 reaches the second height.
Further, the push buttons 6 on the two forceps arms 3 can be pushed towards the forceps handle 1 simultaneously, so that the second connecting portion 61 drives the push rod 62 to move towards the proximal end of the sliding slot 31 until the heights of the movable teeth 341 on the two forceps mouths 5 extending out of the lower side surfaces of the forceps mouths 5 from the second through holes 335 reach the first height.
In other cases, the push button 6 on one of the two forceps arms 3 can be pushed towards the forceps handle 1 to make the second connecting part 61 drive the push rod 62 to move towards the proximal end of the sliding slot 31 until the height of the movable tooth 341 extending out of the second through hole 335 from the lower side of the forceps mouth 5 reaches a first height, and the push button 6 on the other forceps arm 3 can be pushed towards the distal end of the forceps handle 1 to make the second connecting part 61 drive the push rod 62 to move towards the distal end of the sliding slot 31 until the movable tooth 341 extending out of the second through hole 335 from the lower side of the forceps mouth 5 reaches a second height. Therefore, the movable teeth on the opposite inner side surfaces of the forceps mouths 5 can be matched with each other in the form of a first height to a first height, a first height to a second height and a second height to the second height, and therefore different clamping forces are improved.
The forceps for gynecological operation of the present invention has a forceps mouth with a variable tooth height, so that the height of the movable tooth 341 can be changed by pushing the push button 6 as required in gynecological operation, a larger tooth height is used when a tumor and the like need to be firmly clamped, and a smaller tooth height is used when fine operation is required or tissue is prevented from being excessively clamped by the forceps and damaged, so that frequent forceps replacement is not required, the operation time can be significantly shortened, the pain of bleeding and the like of a patient can be reduced, and the operation risk factors such as distraction and the like of an operator due to instrument replacement can be avoided to a certain extent, thereby reducing the contact chance and time of the tumor tissue and normal tissue, also reducing the risk of tumor metastasis, and increasing the operation success rate.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby; all simple equivalent changes and modifications made according to the claims and the content of the creation specification of the present invention should still fall within the scope covered by the present patent.
Claims (10)
1. The forceps for gynecological operation comprise a forceps handle (1) and two forceps arms (3), one end of each forceps arm (3) is connected with the forceps handle (1), the other end of each forceps mouth (5) is in a free end form, a sliding groove (31) is formed in the middle of the outer side of each forceps arm (3), a cavity (33) is formed in each forceps mouth (5), a plurality of second through holes (335) are formed in the lower side wall of each cavity (33), a tongue portion (34) is arranged in each cavity (33), one end, close to the forceps handle (1), of each tongue portion (34) is connected with the corresponding forceps arm (3), a plurality of movable teeth (341) are arranged on the lower side face of each tongue portion (34) corresponding to the corresponding second through holes (335), the movable teeth (341) penetrate through the corresponding second through holes (335) in an adaptive mode, one end, far away from the tongue portion (34), of each movable tooth (341) penetrates through the lower side wall of each cavity (33) and extends out of each forceps mouth inner side face (52) to reach a first height, the forceps comprise a forceps arm (3) and a push rod (62), wherein a first through hole (32) which is communicated with a sliding groove (31) and a cavity (33) is formed in the forceps arm (3), the push rod (62) is arranged in the first through hole (32) in a sliding mode, one end of the push rod (62) extends into the sliding groove (31) and is connected with a push button (6) arranged on the upper side face of the forceps arm (3) through a second connecting portion (61), the other end of the push rod (62) extends into the cavity (33) and is positioned between the upper side inner wall of the cavity (33) and the upper side face of a tongue portion (34), and the upper side inner wall of the cavity (33) is gradually close to the upper side face of the tongue portion (34) from the direction close to; the pair of tweezers is provided with a first state that the push button (6) is close to the tweezers handle (1) and a second state that the push button (6) is far away from the tweezers handle (1); in the first state, the second connecting part (61) and the proximal end of the push rod (62) which are positioned in the sliding groove (31) are close to one end of the sliding groove (31) close to the forceps handle (1), the first convex part (333) is embedded into the first groove (63), the upper side of the tongue part (34) is close to the lower side surface of the push rod (62) and the second convex part (334), so that one end of the movable tooth (341) far away from the tongue part (34) penetrates through the lower side wall of the cavity (33) and extends out of the inner side surface (52) of the forceps mouth to reach a first height; in the second state, the far ends of the second connecting part (61) and the push rod (62) which are positioned in the sliding groove (31) are close to the other end of the sliding groove (31) far away from the forceps handle (1), the second convex part (334) is embedded into the first groove (63), the upper side of the tongue part (34) is close to the lower side of the push rod (62), so that one end of the movable tooth (341) far away from the tongue part (34) penetrates through the lower side wall of the cavity (33) and extends out of the inner side surface (52) of the forceps mouth to reach a second height which is larger than the first height.
2. The forceps for gynecological operations according to claim 1, wherein the first height is 0.5 to 2 times the width of the movable tooth (341).
3. The forceps for gynecological operation according to claim 2, wherein the width of the movable teeth (341) is 0.2 to 1.5 mm.
4. Forceps for gynecological operations according to any one of claims 1 to 3, wherein the upper inner wall of the cavity (33) is provided with a first inclined surface (331) which gradually approaches the upper side of the tongue (34) from the direction approaching to and departing from the forceps handle (1), the proximal end of the first inclined surface (331) is provided with a first protrusion (333) protruding downward, and the distal end of the first inclined surface (331) is provided with a second protrusion (334) protruding downward; the upper side surface of the far end of the push rod (62) is provided with a first groove (63).
5. Forceps for gynecological operations according to any of claims 1 to 3, wherein the cross section of the push rod (62) is in the shape of an upwardly convex crescent, the lower side of the push rod (62) is provided with a second groove (64) which is concave upwards and is along the length direction of the push rod (62), and the upper side of the tongue (34) is provided with a convex ridge (342) which is convex upwards and is matched with the second groove.
6. Forceps for gynecological operations according to any one of claims 1 to 3, wherein the movable teeth (341) comprise a plurality of first movable teeth (3411) arranged in the lengthwise direction of the forceps mouth (5) and second and third movable teeth (3412, 3413) provided on both sides of the first movable teeth (3411); an included angle between the second movable tooth (3412) or the third movable tooth (3413) and the first movable tooth (3411) is 0-30 degrees; the arrangement direction of the second movable teeth (3412) is parallel to the left side surface (53) of the tweezer mouth; the arrangement direction of the third movable teeth (3413) is parallel to the right side surface (54) of the tweezer mouth.
7. Forceps for gynecological operations according to claim 6, wherein the cross section of the first movable tooth (3411) is elongated perpendicular to the length direction of the mouth (5); the second movable teeth (3412) and the third movable teeth (3413) have an elongated cross section perpendicular to the arrangement direction thereof.
8. Forceps for gynaecological operations according to claim 7, wherein the tongue (34) is connected to the forceps arm (3) by a third connection (35); the third connecting part (35) is a spring piece; the lower side surface of the third connecting part (35) is provided with a first arc surface (351) which is concave upwards, the left side surface and the right side surface of the third connecting part (35) are provided with second arc surfaces (352) which are concave inwards, and the upper side surface of the third connecting part (35) is a plane.
9. A method of using the forceps for gynecological surgery according to any one of claims 1 to 8, comprising: placing the forceps in a first state, so that the movable tooth (341) extends out of the lower side face of the forceps mouth (5) from the second through hole (335) to reach a first height; and placing the forceps in a second state so that the movable tooth (341) protrudes from the second through hole (335) to a second height above the lower side of the forceps mouth (5).
10. The method of claim 9, wherein the placing into a first state comprises: pushing the push button (6) towards the forceps handle (1) to enable the second connecting part (61) to drive the push rod (62) to move towards the near end of the sliding groove (31), the first groove (63) is matched with the first convex part (333), and the tongue part (34) moves upwards until the height of the movable tooth (341) extending out of the lower side surface of the forceps mouth (5) from the second through hole (335) reaches a first height; the upward movement is driven by the elastic force of the second connecting portion (61) or caused by the pressure applied to the distal end of the movable tooth (341); the placing into the second state comprises: the push button (6) is pushed in the direction far away from the forceps handle (1) to enable the second connecting portion (61) to drive the push rod (62) to move towards the far end of the sliding groove (31), the first groove (63) is matched with the second convex portion (334), and the push rod (62) pushes the tongue portion (34) downwards to move until the height of the movable tooth (341) extending out of the lower side face of the forceps mouth (5) from the second through hole (335) reaches a second height.
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| CN201810862573.3A CN109044489B (en) | 2018-08-01 | 2018-08-01 | Forceps for gynecological operation and using method thereof |
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| CN201810862573.3A CN109044489B (en) | 2018-08-01 | 2018-08-01 | Forceps for gynecological operation and using method thereof |
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| CN203749505U (en) * | 2014-03-19 | 2014-08-06 | 杨杰 | Surgical forceps |
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| CN206603796U (en) * | 2016-12-07 | 2017-11-03 | 长沙医学院 | Multifunctional medical tweezer |
| CN207575202U (en) * | 2017-03-29 | 2018-07-06 | 牛永敢 | A kind of cartilage forceps |
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| CN101084834A (en) * | 2006-06-09 | 2007-12-12 | 陈仕林 | Clamping apparatus for surgical suture operation |
| KR100877916B1 (en) * | 2007-10-15 | 2009-01-12 | 양두병 | Medical instrument for plastic operation |
| CN201939438U (en) * | 2011-01-20 | 2011-08-24 | 王培忠 | Adjustable-precision surgical forceps |
| CN103692375A (en) * | 2013-12-20 | 2014-04-02 | 张家港天达特种刀具有限公司 | Forceps |
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| CN109044489A (en) | 2018-12-21 |
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