Biopsy forceps facilitating sampling

Abstract

The biopsy forceps are characterized in that barbs are arranged at the front end of a tube body assembly, an elastic shifting piece is arranged at the position, corresponding to a traction face, of an operation end, the shifting piece is obliquely arranged relative to a fixing piece, a groove part is formed in the shifting piece and corresponds to the barbs, and the barbs penetrate through the groove part to be connected with traction tissue; the operating end respectively forms a first operating position and a second operating position from front to back, a driving unit is arranged on the second operating position and is used for driving the two gripper arms to be in an open state, the clamp assembly further comprises an elastic unit, the elastic unit is respectively connected with the two gripper arms, and when the gripper arms are located at the first operating position, the elastic unit is connected with the two gripper arms. The elastic unit is used for driving the two gripper arms to get close to each other to be in a clamping state, the handle assembly is connected with the two gripper arms and drives the two gripper arms to move front and back along the tube body assembly, and the tissue can be dragged through the barbs arranged on the traction face, so that the tissue is prevented from falling off or dissociating, and the accuracy of the gripping position of the gripper arms is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a biopsy forceps which is convenient for sampling. Background Art

[0002] The diagnosis of female lower reproductive tract lesions currently relies mainly on using biopsy forceps to obtain biopsy specimens of target tissues from the vulva, vagina and cervix where lesions are suspected, and then further pathological examination of the tissue specimens is performed to determine the nature of the lesions. However, the existing biopsy forceps still have the following problems when used:

[0003] 1. Some are postmenopausal women whose cervix and vaginal wall are atrophied and lack elasticity, which makes it difficult to take samples with biopsy forceps, increases the operation time, and even leads to sampling failure, which increases the pain of patients;

[0004] 2. When taking samples with biopsy forceps, tissues are prone to fall off or become free, resulting in inaccurate sampling positions, so this needs to be improved. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a biopsy forceps that is convenient for sampling, can reduce the difficulty of sampling, and at the same time fix the tissue to ensure the accuracy of the sampling position.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A biopsy forceps for convenient sampling, comprising: a tube body component, the front end of the tube body component forms an operating end, the operating end is provided with a fixing plate, one side of the fixing plate forms a pulling surface and barbs are arranged corresponding to the pulling surface, the operating end is provided with an elastic paddle corresponding to the pulling surface, the paddle is arranged obliquely relative to the fixing plate, the paddle is provided with a groove corresponding to the barb, and the groove is used for the barb to pass through to connect and pull tissue;

[0008] A clamp assembly, wherein the clamp assembly comprises two symmetrically arranged clamp jaws, wherein the operating ends respectively form a first operating position and a second operating position from front to back, wherein a driving unit is provided on the second operating position, wherein the driving unit is used to drive the two clamp jaws to be in an open state, and wherein the clamp assembly further comprises an elastic unit, wherein the elastic unit is respectively connected to the two clamp jaws, and when the clamp jaws are in the first operating position, the elastic unit is used to drive the two clamp jaws to be close to each other to be in a clamping state;

[0009] A handle assembly is connected to the two clamp claws and drives the two clamp claws to move forward and backward along the tube body assembly.

[0010] As a further improvement of the present invention, the clamp claw includes a slide and a claw body, the operating end is provided with a limit groove, the slide is provided with a limit block and is slidably connected to the limit groove, one end of the claw body extends outwardly and is provided with a hinge rod, the middle section of the hinge rod is hinged to the slide, the end of the hinge rod away from the slide forms a driving end, the driving unit is an inclined driving surface, and the driving surface is used to resist the driving end and drive the driving end to tilt and be parallel to the driving surface.

[0011] As a further improvement of the present invention, the elastic unit is an elastic ring, the two claws are provided with arc grooves corresponding to each other, and the elastic ring is simultaneously sleeved on the two arc grooves.

[0012] As a further improvement of the present invention, the ends of the two claws away from the hinge rod form a bite end, and the sides of the two bite ends close to each other form a serrated bite surface.

[0013] As a further improvement of the present invention, the tube body assembly is provided with a limiting hole along the axis and a connecting rod is slidably provided in the limiting hole, one end of the connecting rod is connected to the sliding seat, and the other end forms a connecting end, the handle assembly includes a fixed handle and an operating handle, the fixed handle is fixedly connected to the tube body assembly, the operating handle is hinged to the tube body assembly, one end of the operating handle is connected to the connecting end, and drives the connecting rod to move along the axis direction of the limiting hole.

[0014] As a further improvement of the present invention, a slide groove is provided on the operating handle and a slider is provided in the slide groove, and the slider is hinged to the connecting end. When the operating handle is pressed, the slider slides in the slide groove under the limit of the connecting end.

[0015] As a further improvement of the present invention, a torsion spring is provided at the hinge between the operating handle and the slide seat, and the torsion spring is used to drive the operating handle to move away from the fixed handle. The tube body assembly is provided with a stopper corresponding to the operating handle, and the stopper is used to resist the operating handle to limit the maximum range of motion of the operating handle.

[0016] As a further improvement of the present invention, the two ends of the claw bodies are provided with knife portions corresponding to each other, and the two knife portions are used to contact each other to cut tissue.

[0017] Beneficial effects of the present invention:

[0018] 1. The barbs on the pulling surface can be used to pull the tissue, thereby preventing the tissue from falling off or becoming free, and ensuring the accuracy of the gripping position of the forceps;

[0019] 2. The setting of the paddle can facilitate the pulling and separation of the barbs from the tissue, so as to facilitate use. At the same time, the paddle and the fixing plate are inserted into the tissue at the same time to achieve the connection and pulling effect on the atrophic vaginal wall and cervix. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the clamp assembly in the first embodiment of the present invention in an open state;

[0021] Figure 2 This is a schematic diagram of the installation of a handle assembly according to the first embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the clamp assembly in a closed state according to the first embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation of the slide seat according to the first embodiment of the present invention;

[0024] Figure 5 It is a cross-sectional schematic diagram of the installation of the slide seat and the operating end according to the first embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the installation of the knife portion of the second embodiment of the present invention.

[0026] 1. The tool assembly includes the following: 1. a tube assembly; 2. an operating end; 3. a fixing plate; 4. a pulling surface; 5. a barb; 6. a paddle; 7. a groove; 8. a clamp assembly; 9. a clamp claw; 10. a first operating position; 11. a second operating position; 12. a driving unit; 13. an elastic unit; 14. a handle assembly; 15. a slide seat; 16. a claw body; 17. a limiting groove; 18. a limiting block; 19. a hinged rod; 20. a driving end; 21. a driving surface; 22. an elastic ring; 23. an arc groove; 24. an engaging end; 25. an engaging surface; 26. a limiting hole; 27. a connecting rod; 28. a connecting end; 29. ​​a fixing handle; 30. an operating handle; 31. a slide groove; 32. a slider; 33. a stopper; 34. a knife portion. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are represented by the same reference numerals.

[0028] Figure 1-5 This is the first embodiment of the present invention, a biopsy forceps for convenient sampling, comprising: a tube body component 1, an operating end 2 formed at the front end of the tube body component 1, in this embodiment, the operating end 2 is specifically a limiting section set at the front end of the tube body component 1, the aperture of the limiting section is smaller than the aperture of the tube body component 1, a fixing plate 3 is provided on the operating end 2, a pulling surface 4 is formed on one side of the fixing plate 3 and barbs 5 are arranged corresponding to the pulling surface 4, an elastic paddle 6 is provided on the operating end 2 corresponding to the pulling surface 4, the paddle 6 is inclined relative to the fixing plate 3, and a groove 7 is provided on the paddle 6 corresponding to the barb 5, and the groove 7 is used for the barb 5 to pass through to connect the traction tissue.

[0029] Preferably, a clamp assembly 8 is also included, the clamp assembly 8 includes two symmetrically arranged clamp jaws 9, the operating end 2 forms a first operating position 10 and a second operating position 11 from front to back, and the second operating position 11 is provided with a driving unit 12, the driving unit 12 is used to drive the two clamp jaws 9 to an open state, the clamp assembly 8 also includes an elastic unit 13, the elastic unit 13 is respectively connected to the two clamp jaws 9, when the clamp jaws 9 are located in the first operating position 10, the elastic unit 13 is used to drive the two clamp jaws 9 to approach each other to a clamping state.

[0030] Preferably, a handle assembly 14 is further included, which is connected to the two clamp jaws 9 and drives the two clamp jaws 9 to move forward and backward along the tube body assembly 1.

[0031] In the initial state, the paddle 6 is in an inclined state, and the barb 5 is hidden relative to the paddle 6. Since wrinkles will be generated in the atrophied vaginal wall, the fixing plate 3 and the paddle 6 can be further inserted into the wrinkles at the same time. The paddle 6 is moved toward the fixing plate 3 through the natural squeezing of the vaginal tissue and the upward force applied by the operator, so that the paddle 6 and the fixing plate 3 are parallel to each other. At this time, the barb 5 passes through the groove 7 and is exposed, so that the tissue can be pulled.

[0032] In the initial state, the two jaws 9 can be moved to the first operating position 10 through the handle assembly 14, so that the two jaws 9 are in a clamping state under the drive of the elastic unit 13, thereby greatly reducing the overall volume to facilitate entry into the human body. Before pulling the tissue, the two jaws 9 can be moved to the second operating position 11 through the handle assembly 14, so that the two jaws 9 are opened for preparation, and after the traction is completed, the two jaws 9 are moved to the first operating position 10 again, and the elastic unit 13 is used to complete the clamping of the pulled tissue.

[0033] By means of traction by the barbs 5, the traction and fixation of the tissue can be ensured. At the same time, the setting of the fixing plate 3 and the paddle 6 can be conveniently inserted into the fold to complete the connection with the tissue. At the same time, after the traction of the barbs 5 is completed, the clamping position of the tissue can be fixed by cooperating with the clamp assembly 8 to ensure stable clamping and easy operation.

[0034] Preferably, the claw 9 includes a slide 15 and a claw body 16, a limit groove 17 is provided on the operating end 2, a limit block 18 is provided on the slide 15 and is slidably connected to the limit groove 17, one end of the claw body 16 extends outwardly and is provided with a hinge rod 19, the middle section of the hinge rod 19 is hinged to the slide 15, and the end of the hinge rod 19 away from the slide 15 forms a driving end 20, and the driving unit 12 is an inclined driving surface 21, and the driving surface 21 is used to resist the driving end 20 and drive the driving end 20 to tilt and be parallel to the driving surface 21.

[0035] Furthermore, a restraint block can be provided on the slide 15, which is used to abut against the hinge rod 19 to limit the maximum rotation range of the claw body 16 in the direction of approaching each other, so as to ensure that the end of the hinge rod 19 can correspond to the driving surface 21, and avoid excessive rotation that makes the driving surface 21 unable to drive.

[0036] When the slide 15 is located in the second operating position 11, the driving end 20 can contact the driving surface 21 and swing under the drive of the driving surface 21, so that the hinge rod 19 is tilted, so that the two claws 16 are in an open state, and the slide 15 is further driven by the handle assembly 14 to move forward to the first operating position 10. At this time, the driving end 20 is separated from the driving surface 21, and the two claws 16 are driven by the elastic unit 13 to move closer to each other to complete the clamping action.

[0037] Preferably, the elastic unit 13 is an elastic ring 22 , and arc grooves 23 corresponding to each other are provided on the two claw bodies 16 , and the elastic ring 22 is simultaneously sleeved on the two arc grooves 23 .

[0038] The arc groove 23 is close to the hinge position of the hinge rod 19 to increase the clamping range of the claw body 16.

[0039] Preferably, the ends of the two claw bodies 16 away from the hinge rod 19 form a bite end 24 , and the sides of the two bite ends 24 close to each other form a sawtooth bite surface 25 .

[0040] The serrated occlusal surface 25 can greatly improve the clamping stability, thereby improving the fixation effect on the tissue.

[0041] Preferably, the tube body assembly 1 is provided with a limit hole 26 along the axis and a connecting rod 27 is slidably provided in the limit hole 26, one end of the connecting rod 27 is connected to the sliding seat 15, and the other end forms a connecting end 28, the handle assembly 14 includes a fixed handle 29 and an operating handle 30, the fixed handle 29 is fixedly connected to the tube body assembly 1, the operating handle 30 is hinged to the tube body assembly 1, one end of the operating handle 30 is connected to the connecting end 28, and drives the connecting rod 27 to move along the axis direction of the limit hole 26.

[0042] When the operating handle 30 is pressed, the operating handle 30 drives the slide 15 to move toward the second operating position 11 through the connecting rod 27 to complete the opening of the clamping jaws.

[0043] The operating handle 30 is arranged in cooperation with the connecting rod 27 to realize rapid driving of the slide seat 15 . Meanwhile, the overall structure is simple and compact to reduce the overall volume, thereby meeting the demand for miniaturization.

[0044] Preferably, a slide groove 31 is provided on the operating handle 30 and a slider 32 is provided in the slide groove 31 . The slider 32 is hinged to the connecting end 28 . When the operating handle 30 is pressed, the slider 32 slides in the slide groove 31 under the limit of the connecting end 28 .

[0045] The sliding arrangement of the slider 32 can facilitate the movement of the connecting rod 27 to facilitate operation.

[0046] Preferably, a torsion spring is provided at the hinge between the operating handle 30 and the slide seat 15, and the torsion spring is used to drive the operating handle 30 to move away from the fixed handle 29. The tube body assembly 1 is provided with a stopper 33 corresponding to the operating handle 30, and the stopper 33 is used to resist the operating handle 30 to limit the maximum range of motion of the operating handle 30.

[0047] The setting of the torsion spring can realize the automatic movement of the slide 15 to the first operating position 10 by returning the torsion spring after traction is completed, thereby realizing automatic clamping. At the same time, the setting of the block 33 can ensure the range of motion of the operating handle 30 to prevent the slide 15 from moving too much and falling off.

[0048] Figure 6 This is the second embodiment of the present invention, which is different from the above embodiment in that the ends of the two claw bodies 16 are provided with knife portions 34 corresponding to each other, and the two knife portions 34 are used to abut against each other to cut tissue.

[0049] In one embodiment, the tissue can be clamped by the claw body 16 and further cut by an additional knife. For some weaker areas, cutting can also be achieved directly by the knife portion 34 .

[0050] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A biopsy forceps for convenient sampling, characterized in that: include: A tube body component (1), wherein the front end of the tube body component (1) forms an operating end (2), the operating end (2) is provided with a fixing plate (3), one side of the fixing plate (3) forms a pulling surface (4) and barbs (5) are arranged corresponding to the pulling surface (4), the operating end (2) is provided with an elastic paddle (6) corresponding to the pulling surface (4), the paddle (3) is arranged obliquely relative to the fixing plate (3), the paddle (3) is provided with a groove (7) corresponding to the barb (5), and the groove (7) is used for the barb (5) to pass through to connect the pulling tissue; A clamp assembly (8), wherein the clamp assembly (8) comprises two symmetrically arranged clamp jaws (9), wherein the operating end (2) forms a first operating position (10) and a second operating position (11) from front to back, respectively, and the second operating position (11) is provided with a driving unit (12), wherein the driving unit (12) is used to drive the two clamp jaws (9) to be in an open state, and the clamp assembly (8) further comprises an elastic unit (13), wherein the elastic unit (13) is respectively connected to the two clamp jaws (9), and when the clamp jaws (9) are in the first operating position (10), the elastic unit (13) is used to drive the two clamp jaws (9) to be close to each other to be in a clamping state; A handle assembly (14) is connected to the two clamp claws (9) and drives the two clamp claws (9) to move forward and backward along the tube body assembly (1).

2. A biopsy forceps for convenient sampling according to claim 1, characterized in that: The clamp claw (9) comprises a slide seat (15) and a claw body (16); a limit groove (17) is provided on the operating end (2); a limit block (18) is provided on the slide seat (15) and is slidably connected to the limit groove (17); a hinge rod (19) is provided at one end of the claw body (16) extending outward; a middle section of the hinge rod (19) is hinged to the slide seat (15); an end of the hinge rod (19) away from the slide seat (15) forms a driving end (20); the driving unit (12) is an inclined driving surface (21); the driving surface (21) is used to abut against the driving end (20) and drive the driving end (20) to be inclined and parallel to the driving surface (21).

3. A biopsy forceps for convenient sampling according to claim 2, characterized in that: The elastic unit (13) is an elastic ring (22), and the two claw bodies (16) are each provided with arc grooves (23) corresponding to each other, and the elastic ring (22) is simultaneously sleeved on the two arc grooves (23).

4. A biopsy forceps for convenient sampling according to claim 2, characterized in that: One end of the two claw bodies (16) away from the hinge rod (19) forms a bite end (24), and the sides of the two bite ends (24) close to each other form a sawtooth bite surface (25).

5. The biopsy forceps for convenient sampling according to claim 2, characterized in that: The tube body assembly (1) is provided with a limiting hole (26) along the axis and a connecting rod (27) is slidably provided in the limiting hole (26); one end of the connecting rod (27) is connected to the sliding seat (15), and the other end forms a connecting end (28); the handle assembly (14) comprises a fixed handle (29) and an operating handle (30); the fixed handle (29) is fixedly connected to the tube body assembly (1); the operating handle (30) is hinged to the tube body assembly (1); one end of the operating handle (30) is connected to the connecting end (28), and drives the connecting rod (27) to move along the axis direction of the limiting hole (26).

6. A biopsy forceps for convenient sampling according to claim 5, characterized in that: The operating handle (30) is provided with a slide groove (31) and a slider (32) is provided in the slide groove (31). The slider (32) is hinged to the connecting end (28). When the operating handle (30) is pressed, the slider (32) slides in the slide groove (31) under the limit of the connecting end (28).

7. The biopsy forceps for convenient sampling according to claim 5, characterized in that: A torsion spring is provided at the hinged portion between the operating handle (30) and the slide seat (15), and the torsion spring is used to drive the operating handle (30) to move in a direction away from the fixed handle (29). The tube body assembly (1) is provided with a stopper (33) corresponding to the operating handle (30), and the stopper (33) is used to abut against the operating handle (30) to limit the maximum range of motion of the operating handle (30).

8. The biopsy forceps for convenient sampling according to claim 2, characterized in that: The ends of the two claw bodies (16) are provided with knife parts (34) corresponding to each other, and the two knife parts (34) are used to contact each other to cut tissue.

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