CN215018073U - Cervical lesion tissue biopsy forceps capable of being fixed, prevented from slipping and accurately positioned - Google Patents

Abstract

The utility model relates to a biopsy forceps technical field, in particular to a cervical lesion tissue biopsy forceps capable of fixing anti-slipping and accurate positioning. Comprises a clamp body and a positioning suction assembly arranged on the clamp body; the clamp body comprises a fixed handle, a movable handle, a fixed clamp rod, a sliding push rod, a movable clamp head and an elastic jacking piece; the positioning suction assembly comprises a guide block, a suction nozzle and a pipe body, the tail end of the pipe body is connected with the negative pressure pump body, and the positioning suction assembly further comprises a traction assembly fixedly connected to the movable handle and the pipe body between the guide block and the fixed handle. The utility model discloses increase the location and attract the subassembly on the basis of current biopsy forceps, adsorb the location through the position that the suction nozzle will be gathered to at activity binding clip shearing in-process, drag the adsorbed position backward and send into in the shearing mouth, so that the collection of live body tissue has fixed antiskid, accurate collection sample, improves work efficiency and reduces the painful advantage of patient's inspection.

Description

Cervical lesion tissue biopsy forceps capable of being fixed, prevented from slipping and accurately positioned

Technical Field

The utility model relates to a biopsy forceps technical field, in particular to a cervical lesion tissue biopsy forceps capable of fixing anti-slipping and accurate positioning.

Background

Cervical biopsy is biopsy of cervix, that is, taking a small piece or several pieces of tissue from the surface of cervix by using a biopsy forceps to perform pathological examination to determine diagnosis, and is often used for suspected cancer of cervix, or suspected cancer cells in cervical scraping, or suspected specific inflammation, such as tuberculosis of cervix, etc. The cervical biopsy can be used for definite diagnosis and treatment method, and is a reliable basis for diagnosing the cervical cancer.

The patent number is "ZL 201920285929.1"'s a disposable cervical biopsy pincers, biopsy pincers include fixed handle, movable handle, elastic plate, claw beam, push rod and binding clip, fixed handle upper end fixedly connected with claw beam, and fixed handle and claw beam junction vertically are equipped with the opening of run-through formula, movable handle insert opening is connected with fixed handle, connect by the elastic plate of V style of calligraphy between fixed handle and the movable handle, the movable handle top is equipped with horizontal push rod, the upper surface of claw beam is arranged in to the push rod. The biopsy forceps adopt the forceps heads to open and close up and down to collect samples, and have the following problems in the collection process: because the surface of the cervix is very smooth, particularly postmenopausal women, the cervix is hard in texture, the biopsy forceps are easy to slip and shift in the sampling process, the biopsy forceps are difficult to accurately and unmistakably collect cervix living tissues at one time, and a required sample can be taken out by multiple operations, so that the working efficiency of medical staff is low, and the pain born by a patient is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: overcome above shortcoming and provide a can fix cervical lesion tissue biopsy pincers that antiskid takes off and pinpoint, this biopsy pincers increase the location on current biopsy pincers's basis and attract the subassembly, adsorb the location through the position that the suction nozzle will need gather, and at activity binding clip shearing in-process, pull the position that adsorbs backward and send into in the shearing mouth, so that the collection of live body tissue, fixed antiskid has, accurate collection sample, improve work efficiency and reduce the painful advantage of patient's inspection.

The utility model discloses a following technical scheme realizes: the utility model provides a can fix cervical lesion tissue biopsy forceps that antiskid is taken off and pinpointing which characterized in that: comprises a clamp body and a positioning suction assembly arranged on the clamp body; the clamp body comprises a fixed handle, a movable handle, a fixed clamp rod, a sliding push rod, a movable clamp head and an elastic jacking piece;

the fixed clamp rod extends along the transverse direction, the transverse rear end of the fixed clamp rod is fixedly connected with the upper end part of the fixed handle, a slotted hole which extends through the fixed clamp rod along the vertical direction is formed in the transverse rear end, which is close to the fixed handle, of the fixed clamp rod, the movable handle is located in the transverse front of the fixed handle and is located below the slotted hole, a connecting rod body which extends upwards along the vertical direction is fixedly arranged at the upper end of the movable handle, the connecting rod body penetrates through the slotted hole and upwards penetrates out of the slotted hole, and the sliding push rod also extends along the transverse direction and is connected with the fixed clamp rod in a sliding manner along the transverse direction; the lower end of the connecting rod body is hinged with the fixed clamp rod through a first pin shaft extending along the longitudinal direction, the upper end of the connecting rod body is hinged with the sliding push rod through a second pin shaft extending along the longitudinal direction, and the elastic jacking part is pressed between the lower side parts of the fixed handle and the movable handle and used for keeping the lower side parts of the fixed handle and the movable handle separated; the movable binding clip comprises a connecting body and a clamp, the connecting body is positioned behind the collecting hole in the transverse direction and close to the collecting hole, the lower end of the connecting body is hinged with the fixed binding clip through a third pin shaft extending in the longitudinal direction, the upper end of the connecting body is hinged with the sliding push rod through a fourth pin shaft extending in the longitudinal direction, the transverse rear end of the clamp is fixedly connected with the upper end of the connecting body, and the vertical connecting line of the axial leads of the third pin shaft and the fourth pin shaft is obliquely arranged with the clamp; when the fixed handle and the movable handle are not subjected to the external force action which enables the lower side parts of the fixed handle and the movable handle to be mutually folded, the clamp is positioned above the acquisition hole, and the transverse front end of the clamp is higher than the transverse rear end, so that an included angle smaller than 90 degrees is formed between the clamp and the front end of the fixed handle; when the fixed handle and the movable handle are subjected to the external force which enables the lower side parts of the fixed handle and the movable handle to be mutually folded, the clamp can be embedded into the collecting hole in the process of rotating around the third pin shaft, so that materials embedded between the collecting hole and the clamp can be sheared;

the positioning and sucking assembly comprises a guide block which is fixedly connected with the fixed tong rod and is positioned at the transverse rear part of the movable tong head, more than one suction nozzle which is respectively arranged at the longitudinal outer side of the movable tong head, guide holes which are the same in number and corresponding in position to the suction nozzles and extend through the guide block along the transverse direction are arranged in the guide block, the positioning and sucking assembly also comprises a pipe body which is connected with each corresponding suction nozzle and movably penetrates through the corresponding guide hole of the guide block, the tail end of the pipe body is connected with the negative pressure pump body to provide negative pressure suction for the suction nozzle, and the positioning and sucking assembly also comprises a traction assembly which is fixedly connected with the movable handle and the pipe body positioned between the guide block and the fixed handle; when the movable handle and the fixed handle are not subjected to the action of external force which enables the lower side parts of the movable handle and the fixed handle to be mutually folded, the suction front end opening of the suction nozzle is positioned in the transverse front of the transverse front end wall of the fixed handle; when the fixed handle and the movable handle are subjected to the action of external force which enables the lower side parts of the fixed handle and the movable handle to be mutually folded, the movable handle can drive the pipe body and the suction nozzle on the pipe body to move and drag to the transverse rear side direction along the guide direction of the guide hole through the traction assembly, and the suction front end opening of the suction nozzle is located at the transverse rear side of the transverse front end edge of the collecting hole.

The working principle and the process are as follows: the biopsy forceps are conveyed to the corresponding position, the position needing to be collected is found, the position is adsorbed and positioned through the suction nozzle, then the movable handle is driven to rotate around the first pin shaft in the direction close to the fixed handle manually, the movable handle can push the sliding push rod to slide forwards relative to the fixed forceps rod through the connecting rod body and the second pin shaft in the rotating process, and the sliding push rod can push the forceps of the movable forceps head to rotate downwards around the third pin shaft in the moving process so as to shear the forceps in the direction close to the collecting hole. Meanwhile, the movable handle rotates around the first pin in the direction close to the fixed handle, the traction assembly connected between the tube body and the movable handle can drive the tube body and the suction nozzle on the tube body to move backwards along the guide direction of the guide hole, so that the suction nozzle can drag the corresponding cervical part to move backwards, the cervical part is gradually fed into the space between the openings of the included angle formed by the clamp and the fixed clamp rod, and then the clamp falls, cuts and samples. And finally, releasing the force applied by the movable handle, resetting the movable handle under the pushing of the elastic jacking part, and sequentially resetting all the parts under the driving of the movable handle to finish the operation.

For better implementation of the scheme, the following optimization scheme is also provided:

preferably, the height position of the suction nozzle in the vertical direction is located between the openings of the included angle formed by the clamp relative to the fixed clamp rod.

Preferably, the body is elastic hose, the subassembly of drawing includes fixed block of fixed mounting on the activity handle, the fixed block corresponds the position looks fixed connection with the body.

In order to facilitate the disassembly and assembly of the pipe body so as to facilitate the later-stage disinfection operation, the pliers body, the guide block and the fixed block are made of metal materials, the pipe body is made of plastic materials and made of suction nozzle rubber materials, fixing holes which are the same in quantity as the suction nozzles and extend in the transverse direction to penetrate through are formed in the fixed block, the pipe body is installed in a close fit mode with the fixing holes of the fixed block, grooves used for facilitating the disassembly and assembly of the pipe body and the guide block or the fixed block are formed in the side portions of the guide holes of the guide block and the fixing holes of the fixed block, the grooves extend in the transverse direction to penetrate through corresponding longitudinal side walls of the guide holes and the guide blocks or penetrate through corresponding longitudinal side walls of the corresponding fixing holes and the fixed block in the longitudinal direction, and the radian of a central included angle of the grooves corresponding to the guide holes or the fixing holes is smaller than 180 degrees.

In order to facilitate the stability of the adsorption, the number of the suction nozzles is two and the suction nozzles are respectively arranged at two longitudinal sides of the movable tong head.

In order to facilitate the absorption and buffering of the suction nozzle, the suction nozzle comprises an elastic sleeve section fixedly matched with the corresponding pipe body and an elastic buffer pipe fixedly arranged at the front end of the transverse direction of the corresponding elastic sleeve section, and the section of the pipe wall of the elastic buffer pipe in the axial direction is corrugated in a concave-convex alternative arrangement.

Preferably, the guide block is ellipsoidal, the central axis of the ellipsoidal long axis extends along the transverse direction, the middle part of the guide block is provided with an installation through hole which extends through the guide block along the axial direction parallel to the long axis, the guide block is sleeved on the peripheries of the fixed clamp rod and the sliding push rod through the installation through hole, the fixed clamp rod and the installation through hole are fixedly installed in a tight fit mode, and the sliding push rod is movably arranged in the installation through hole in a penetrating mode.

Preferably, the traction assembly comprises a movable block which is positioned between the guide block and the movable handle, is positioned below the fixed clamp rod and is fixedly connected with the pipe body, and more than one connecting rod, one end of which is hinged with the movable block, and the other end of which is hinged with the movable handle.

Compared with the prior art, the utility model has the advantages that:

1. the utility model relates to a can fix cervical lesion tissue biopsy forceps that antiskid is taken off and pinpoint, this biopsy forceps increase the location on current biopsy forceps's basis and attract the subassembly, adsorb the location through the position that the suction nozzle will be required to gather to at activity binding clip shearing in-process, pull the position that adsorbs backward and send into in the shearing mouth, so that the collection of live body tissue, have fixed antiskid, accurate collection sample, improve work efficiency and reduce the painful advantage of patient's inspection.

2. The utility model relates to a can fix cervical lesion tissue biopsy forceps that antiskid is taken off and accurate location, the guiding hole of locating piece and the fixed orifices of fixed block all are equipped with the fluting in this biopsy forceps, the hose can be installed in locating piece and fixed block through deformation shrink, when the disinfection of later stage, manual pulling the hose just can deviate from through the fluting, so that can take out hose and suction nozzle part and carry out independent disinfection, hose and suction nozzle can carry out the low temperature disinfection promptly, the metalwork part carries out high temperature disinfection, have the use of repeated disinfection and dismantle convenient advantage.

3. The utility model relates to a can fix antiskid and take off and accurate advantage of fixing a position that cervical lesion tissue biopsy forceps still have easy operation, simple to operate, facilitate promotion and application.

Drawings

FIG. 1 is a schematic three-dimensional structure of the first embodiment;

FIG. 2 is a schematic structural diagram of a caliper body according to a first embodiment;

FIG. 3 is a schematic diagram of an internal structure of the pliers body according to the first embodiment;

FIG. 4 is a partial schematic structural diagram according to the first embodiment;

FIG. 5 is a schematic structural diagram of a guide block according to an embodiment;

FIG. 6 is a schematic structural diagram of a fixed directional block according to a first embodiment;

FIG. 7 is a top view of the first embodiment;

FIG. 8 is a cross-sectional view A-A of FIG. 7;

fig. 9 is a schematic three-dimensional structure diagram of the second embodiment.

Description of reference numerals: 1-clamp body, 11-fixed handle, 12-movable handle, 121-connecting rod body, 13-fixed clamp rod, 131-slotted hole, 132-collecting hole, 14-sliding push rod, 15-movable clamp head, 151-connecting body, 152-clamp, 16-elastic top pressing piece, 17-first pin shaft, 18-second pin shaft, 19-third pin shaft, 110-fourth pin shaft, 2-positioning suction component, 21-guide block, 211-guide hole, 212-mounting through hole, 22-suction nozzle, 221-elastic casing pipe section, 222-elastic casing pipe, 23-pipe body, 24-fixed block, 241-fixed hole, 25-movable block, 26-connecting rod and 3-notch.

Detailed Description

The invention is explained in detail below with reference to the accompanying drawings:

the first embodiment is as follows:

as shown in figures 1-8, a cervical lesion biopsy forceps with fixable slip prevention and accurate positioning is characterized in that: comprises a clamp body 1 and a positioning suction assembly 2 arranged on the clamp body 1; the forceps body 1 comprises a fixed handle 11, a movable handle 12, a fixed forceps rod 13, a sliding push rod 14, a movable forceps head 15 and an elastic jacking part 16;

the fixed clamp rod 13 extends along the transverse direction and the transverse rear end is fixedly connected with the upper end part of the fixed handle 11, the fixed clamp rod 13 is provided with a slotted hole 131 which extends through the fixed clamp rod 13 along the vertical direction near the transverse rear end of the fixed handle 11, the movable handle 12 is positioned at the transverse front of the fixed handle 11 and is positioned below the slotted hole 131, the upper end of the movable handle 12 is fixedly provided with a connecting rod body 121 which extends upwards along the vertical direction, the connecting rod body 121 is arranged in the slotted hole 131 in a penetrating way and penetrates out of the slotted hole 131 upwards, and the sliding push rod 14 also extends along the transverse direction and is connected with the fixed clamp rod 13 in a sliding way along the transverse direction; the lower end of the connecting rod body 121 is hinged with the fixed clamp rod 13 through a first pin shaft 17 extending along the longitudinal direction, the upper end of the connecting rod body 121 is hinged with the sliding push rod 14 through a second pin shaft 18 extending along the longitudinal direction, and the elastic jacking piece 16 is pressed between the lower side parts of the fixed handle 11 and the movable handle 12 and used for keeping the lower side parts of the fixed handle 11 and the movable handle 12 separated; the horizontal front end of the fixed clamp rod 13 is provided with a collecting hole 132 which extends in the vertical direction and penetrates through the fixed clamp rod 13 at a position close to the front end wall, the movable clamp head 15 comprises a connecting body 151 and a clamp 152, the connecting body 151 is positioned at the horizontal rear of the collecting hole 132 and close to the collecting hole 132, the lower end of the connecting body 151 is hinged with the fixed clamp rod 13 through a third pin shaft 19 which extends in the longitudinal direction, the upper end of the connecting body 151 is hinged with the sliding push rod 14 through a fourth pin shaft 110 which extends in the longitudinal direction, the horizontal rear end of the clamp 152 is fixedly connected with the upper end of the connecting body 151, and a vertical connecting line of axial leads of the third pin shaft 19 and the fourth pin shaft 110 is obliquely arranged with the clamp 152; when the fixed handle 11 and the movable handle 12 are not subjected to an external force which enables the lower side parts of the two to be mutually closed, the clamp 152 is positioned above the collecting hole 132, and the position of the transverse front end of the clamp 152 is higher than that of the transverse rear end, so that an included angle which is less than 90 degrees is formed between the clamp 152 and the front end of the fixed handle 11; when the fixed handle 11 and the movable handle 12 are subjected to an external force which enables the lower side portions of the fixed handle and the movable handle to be mutually folded, the clamp 152 can be embedded into the collecting hole 132 in the process of rotating around the third pin shaft 19, so that materials embedded between the collecting hole 132 and the clamp 152 can be sheared;

the positioning and sucking assembly 2 comprises a guide block 21 fixedly connected with the fixed tong bar 13 and positioned at the transverse rear part of the movable tong head 15 and more than one suction nozzle 22 respectively arranged at the longitudinal outer side of the movable tong head 15, the guide block 21 is provided with guide holes 211 which are the same in number and corresponding in position to the suction nozzles 22 and extend through the guide block 21 along the transverse direction, the positioning and sucking assembly 2 further comprises a tube body 23 which is connected with each corresponding suction nozzle 22 and movably penetrates through the corresponding guide hole 211 of the guide block 21, the tail end of the tube body 23 is connected with a negative pressure pump body to provide suction to the suction nozzle 22, and the positioning and sucking assembly 2 further comprises a traction assembly which is fixedly connected with the movable handle 12 and the tube body 23 positioned between the guide block 21 and the fixed handle 11; when the movable handle 12 and the fixed handle 11 are not subjected to an external force for closing the lower side portions of the two, the suction front end opening of the suction nozzle 22 is positioned in the transverse front of the transverse front end wall of the fixed handle 11; when the fixed handle 11 and the movable handle 12 are subjected to an external force which enables the lower portions of the fixed handle and the movable handle to be folded, the movable handle 12 can drive the tube body 23 and the suction nozzle 22 thereon to move and drag in the transverse rear direction along the guiding direction of the guiding hole 211 through the traction assembly to a position which enables the suction front end opening of the suction nozzle 22 to be located at the transverse rear side of the transverse front end edge of the collecting hole 132.

Preferably, the height of the suction nozzle 22 in the vertical direction is located between the angle formed by the clamp 152 with respect to the stationary jaw bar 13.

Preferably, the tube 23 is an elastic hose, the traction assembly includes a fixing block 24 fixedly mounted on the movable handle 12, and the fixing block 24 is fixedly connected with a corresponding portion of the tube 23.

In order to facilitate the disassembly and assembly of the pipe body and the later-period disinfection operation, the forceps body 1, the guide block 21 and the fixing block 24 are all made of metal materials, the tube 23 is made of plastic material, the suction nozzles 22 are made of rubber material, the fixing blocks 24 are provided with fixing holes 241 which have the same number as the suction nozzles 22 and extend through along the transverse direction, the pipe body 23 is tightly fitted and mounted with the fixing hole 241 of the fixing block 24, the side parts of the guide hole 211 of the guide block 21 and the fixing hole 241 of the fixing block 24 are both provided with a slot 3 for facilitating the disassembly and assembly of the pipe body 23 and the guide block 21 or the fixing block 24, the slot 3 extends and penetrates along the transverse direction, and penetrates the corresponding guide hole 211 and the corresponding longitudinal sidewall of the guide block 21 or penetrates the corresponding fixing hole 241 and the corresponding longitudinal sidewall of the fixing block 24 in the longitudinal direction, and the radian of a central included angle of the notch of the open slot 3 relative to the corresponding guide hole 211 or the fixing hole is less than 180 degrees.

In order to facilitate the stability of the suction, the number of the suction nozzles 22 is two and the suction nozzles are respectively arranged at two longitudinal sides of the movable binding clip 15.

In order to facilitate the absorption and buffering of the suction nozzle, the suction nozzle 22 includes an elastic sleeve section 221 fixedly fitted with the corresponding tube 23 and an elastic buffer tube 222 fixedly disposed at the transverse front end of the corresponding elastic sleeve section 221, and the cross section of the tube wall of the elastic buffer tube 222 in the axial direction is corrugated in a concave-convex alternating manner.

Preferably, the guide block 21 is ellipsoidal, a central axis of a long axis of the ellipsoid extends in a transverse direction, a mounting through hole 212 extending through the guide block 21 in a direction parallel to an axial direction of the long axis is formed in the middle of the guide block 21, the guide block 21 is sleeved on the peripheries of the fixed clamp rod 13 and the sliding push rod 14 through the mounting through hole 212, the fixed clamp rod 13 and the mounting through hole 212 are fixedly mounted in a tight fit manner, and the sliding push rod 14 is movably inserted into the mounting through hole 212.

The working principle and process of the embodiment are as follows: the biopsy forceps are sent to the corresponding position, the position required to be collected is found, the suction nozzle 22 is used for sucking and positioning the position, then the movable handle 12 is manually driven to rotate around the first pin shaft 17 in the direction close to the fixed handle 11, the movable handle 12 can push the sliding push rod 14 to slide forwards relative to the fixed forceps rod 13 through the connecting rod 121 and the second pin shaft 18 in the rotating process, and the sliding push rod 14 can push the forceps 152 of the movable forceps head 15 to rotate downwards around the third pin shaft 19 in the moving process so as to cut in the direction close to the collecting hole 132. Meanwhile, in the process that the movable handle 12 rotates around the first pin shaft 17 in the direction close to the fixed handle 11, the tube body 23 and the suction nozzle 22 thereon can be driven by the traction component connected between the tube body 23 and the movable handle 12 to move backwards along the guiding direction of the guiding hole 211, so that the suction nozzle 22 can drag the corresponding cervix to move backwards, and the cervix is gradually fed into the included angle opening formed by the clamp 152 and the fixed clamp rod 13, and then the clamp 152 falls, cuts and samples. Finally, the force applied by the movable handle 12 is released, the movable handle is reset to 12 positions under the pushing of the elastic jacking piece 16, and all the parts are sequentially reset under the driving of the movable handle, so that the operation is completed.

Example two:

as shown in fig. 9, the present embodiment is different from the first embodiment in that the pulling assembly includes a movable block 25 located between the guide block 21 and the movable handle 12 and below the fixed jaw 13 and fixedly connected to the tube 23, and one or more connecting rods 26 having one end hinged to the movable block 25 and the other end hinged to the movable handle 12. This embodiment uses the link 23 to pull the tube body 23 to move back and forth (similar to a slider-crank mechanism) relative to the guide block 21, so that the type of the tube body 23 is not limited to a hose, and other plastic hard tubes or metal tubes may also be used.

While the present invention has been shown and described with reference to particular embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be limited, except as by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a can fix cervical lesion tissue biopsy forceps that antiskid is taken off and pinpointing which characterized in that: comprises a clamp body (1) and a positioning suction assembly (2) arranged on the clamp body (1); the forceps body (1) comprises a fixed handle (11), a movable handle (12), a fixed forceps rod (13), a sliding push rod (14), a movable forceps head (15) and an elastic jacking piece (16);

the fixed clamp rod (13) extends along the transverse direction, the transverse rear end of the fixed clamp rod (13) is fixedly connected with the upper end part of the fixed handle (11), a slotted hole (131) which extends through the fixed clamp rod (13) along the vertical direction is formed in the position, close to the transverse rear end of the fixed handle (11), of the fixed clamp rod (13), the movable handle (12) is located in the transverse front of the fixed handle (11) and is located below the slotted hole (131), a connecting rod body (121) which extends upwards along the vertical direction is fixedly arranged at the upper end of the movable handle (12), the connecting rod body (121) penetrates through the slotted hole (131) and penetrates out of the slotted hole (131) upwards, and the sliding push rod (14) also extends along the transverse direction and is connected with the fixed clamp rod (13) in a sliding mode along the transverse direction; the lower end of the connecting rod body (121) is hinged with the fixed clamp rod (13) through a first pin shaft (17) extending along the longitudinal direction, the upper end of the connecting rod body (121) is hinged with the sliding push rod (14) through a second pin shaft (18) extending along the longitudinal direction, and the elastic jacking part (16) is arranged between the lower side parts of the fixed handle (11) and the movable handle (12) in a pressing mode and used for keeping the lower side parts of the fixed handle (11) and the movable handle (12) separated from each other; the horizontal front end of the fixed clamp rod (13) is provided with a collecting hole (132) which extends through the fixed clamp rod (13) along the vertical direction at a position close to the front end wall, the movable clamp head (15) comprises a connecting body (151) and a clamp (152), the connecting body (151) is positioned at the horizontal rear part of the collecting hole (132) and is close to the collecting hole (132), the lower end of the connecting body (151) is hinged with the fixed clamp rod (13) through a third pin shaft (19) which extends along the longitudinal direction, the upper end of the connecting body (151) is hinged with the sliding push rod (14) through a fourth pin shaft (110) which extends along the longitudinal direction, the horizontal rear end of the clamp (152) is fixedly connected with the upper end of the connecting body (151), and the vertical connecting line of the axial lead of the third pin shaft (19) and the fourth pin shaft (110) is obliquely arranged with the clamp (152); when the fixed handle (11) and the movable handle (12) are not subjected to external force which enables the lower side parts of the fixed handle and the movable handle to be mutually closed, the clamp (152) is positioned above the collecting hole (132) and the transverse front end of the clamp (152) is higher than the transverse rear end, so that an included angle which is smaller than 90 degrees is formed between the clamp (152) and the front end of the fixed handle (11); when the fixed handle (11) and the movable handle (12) are under the action of external force which enables the lower side parts of the fixed handle and the movable handle to be mutually folded, the clamp (152) can be embedded into the collecting hole (132) in the process of rotating around the third pin shaft (19) so as to shear the material embedded between the collecting hole (132) and the clamp (152);

the positioning suction assembly (2) comprises a guide block (21) which is fixedly connected with the fixed tong rod (13) and is positioned at the transverse rear part of the movable tong head (15) and more than one suction nozzle (22) which is respectively arranged at the longitudinal outer side of the movable tong head (15), the guide block (21) is provided with guide holes (211) which have the same number and the corresponding positions as the suction nozzles (22) and extend through the guide block (21) along the transverse direction, the positioning and sucking component (2) also comprises a pipe body (23) which is connected with each corresponding suction nozzle (22) and movably arranged in the corresponding guide hole (211) of the guide block (21) in a penetrating way, the tail end of the pipe body (23) is connected with the negative pressure pump body and is used for providing negative pressure suction to the suction nozzle (22), the positioning suction assembly (2) also comprises a traction assembly fixedly connected to the movable handle (12) and a pipe body (23) positioned between the guide block (21) and the fixed handle (11); when the movable handle (12) and the fixed handle (11) are not subjected to external force which enables the lower sides of the movable handle and the fixed handle to be mutually folded, the suction front end opening of the suction nozzle (22) is positioned in the transverse front of the transverse front end wall of the fixed handle (11); when the fixed handle (11) and the movable handle (12) are subjected to the external force action of enabling the lower sides of the fixed handle and the movable handle to be mutually folded, the movable handle (12) can drive the tube body (23) and the suction nozzle (22) on the tube body to move towards the transverse rear side direction along the guiding direction of the guiding hole (211) through the traction assembly and drag the tube body to a position enabling the suction front end opening of the suction nozzle (22) to be located at the transverse rear side of the transverse front end edge of the collecting hole (132).

2. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 1, characterized in that: the height position of the suction nozzle (22) in the vertical direction is positioned between the openings of the included angle formed by the clamp (152) relative to the fixed clamp rod (13).

3. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 1, characterized in that: the pipe body (23) is an elastic hose, the traction assembly comprises a fixing block (24) fixedly mounted on the movable handle (12), and the fixing block (24) is fixedly connected with the corresponding part of the pipe body (23).

4. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 3, characterized in that: the pliers body (1), the guide block (21) and the fixing block (24) are all made of metal materials, the pipe body (23) is made of plastic materials, the suction nozzle (22) is made of rubber materials, fixing holes (241) which are the same in number as the suction nozzle (22) and extend and penetrate through in the transverse direction are formed in the fixing block (24), the pipe body (23) and the fixing holes (241) of the fixing block (24) are installed in a tight fit mode, slots (3) used for facilitating the disassembly and the assembly of the pipe body (23) and the guide block (21) or the fixing block (24) are formed in the side portions of the guide hole (211) of the guide block (21) and the fixing hole (241) of the fixing block (24), the slots (3) extend and penetrate through in the transverse direction, corresponding longitudinal side walls of the corresponding guide hole (211) and the guide block (21) or corresponding longitudinal side walls of the corresponding fixing hole (241) and the fixing block (24) in the longitudinal direction, and the radian of a central included angle of the notch of the open slot (3) relative to the corresponding guide hole (211) or the fixing hole is less than 180 degrees.

5. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 1, characterized in that: the number of the suction nozzles (22) is two and the suction nozzles are respectively arranged at two longitudinal sides of the movable tong head (15).

6. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 1, characterized in that: the suction nozzle (22) comprises an elastic sleeve section (221) fixedly matched and installed with the corresponding pipe body (23) and an elastic buffer pipe (222) fixedly arranged at the transverse front end of the corresponding elastic sleeve section (221), and the section of the pipe wall of the elastic buffer pipe (222) in the axial direction is corrugated in a concave-convex alternative arrangement mode.

7. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 1, characterized in that: the guide block (21) is ellipsoidal, the central axis of the ellipsoidal long axis extends along the transverse direction, the middle part of the guide block (21) is provided with an installation through hole (212) which extends through the guide block (21) along the axial direction of the parallel long axis, the guide block (21) is sleeved on the peripheries of the fixed clamp rod (13) and the sliding push rod (14) through the installation through hole (212), the fixed clamp rod (13) is fixedly installed in a tight fit mode with the installation through hole (212), and the sliding push rod (14) is movably arranged in the installation through hole (212) in a penetrating mode.

8. The fixable anti-slipping and accurately-positioned cervical lesion biopsy forceps according to claim 1, characterized in that: the traction assembly comprises a movable block (25) which is positioned between the guide block (21) and the movable handle (12), is positioned below the fixed clamp rod (13) and is fixedly connected with the pipe body (23), and more than one connecting rod (26) with one end hinged with the movable block (25) and the other end hinged with the movable handle (12).

Images