Cervical biopsy forceps with clamping function

Abstract

The utility model relates to the field of medical instruments, in particular to a pair of cervix biopsy forceps with a clamping function, which comprises a fixed handle and a connecting part, the fixed handle is fixedly connected with the connecting part, the connecting part is rotatably connected with a movable handle, the connecting part is connected with an outer sleeve, a connecting rod is slidably connected in the outer sleeve, and the movable handle is connected with a pushing frame. One side of the outer sleeve is connected with a lower clamp head, the lower clamp head is rotatably connected with an upper clamp head, and the upper clamp head is rotatably connected with one end of a connecting rod. The upper plier head is held to be matched with the lower plier head in a rotating mode to clamp a sample body, the connecting rod can drive the second extrusion block to rotate to extrude the first extrusion block at the same time, after the second extrusion block crosses the first extrusion block, the upper plier head and the lower plier head just clamp the sample body, and at the moment, the first extrusion block abuts against the second extrusion block, so that the sample body is clamped. Therefore, the movable handle is limited through the connecting rod, looseness of the upper clamp head caused by re-movement of the movable handle is prevented, and an operator can conveniently and stably take out a sample body.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a cervical live sampling forceps with a locking function. Background Technology

[0002] In gynecological endoscopic surgery, cervical biopsy forceps are an important tool for obtaining tissue samples for pathological examination.

[0003] Existing cervical biopsy forceps typically employ simple mechanical structures, relying on manual control of clamping force to secure tissue samples. This can easily lead to sample dislodgement if the surgeon releases their grip or if hand tremors occur due to the complex surgical environment. This not only increases the difficulty of the procedure but may also necessitate resampling, prolonging the operation and increasing patient discomfort and risk. Furthermore, the clamping force of traditional forceps depends on manual control by the surgeon, making it difficult to guarantee consistency and stability in each procedure. Excessive clamping force may damage tissue, affecting subsequent pathological analysis; insufficient clamping force may result in a loose sample, increasing the risk of dislodgement. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a cervical live sampling forceps with a locking function, so as to improve the problems existing in the prior art.

[0005] The technical solution provided by this utility model to solve the above problems is as follows: a cervical live sampling forceps with a locking function, comprising a fixed handle and a connecting part, wherein the fixed handle is fixedly connected to the connecting part, and a movable handle is rotatably connected to the connecting part; a locking part is provided on the side of the movable handle close to the fixed handle, and a spring plate is provided in the locking part; an outer tube is connected to the connecting part, and a connecting rod is slidably connected inside the outer tube; a push frame is connected to the movable handle, and the push frame is movably connected to the connecting rod; a lower clamp head is connected to the side of the outer tube away from the connecting part, and an upper clamp head is rotatably connected to the lower clamp head; the upper clamp head is rotatably connected to the end of the connecting rod away from the push frame; and a locking component is provided in the connecting part, which is used to limit the movable handle.

[0006] More preferably, the lower jaw has a through hole, and at least one blocking element is provided in the through hole of the lower jaw.

[0007] More preferably, the side of the upper jaw close to the lower jaw is a friction surface.

[0008] More preferably, the locking assembly includes a connecting post, a rotating sleeve, a telescopic rod, a first pressing block, a second pressing block, and a connecting rod. The connecting post is disposed within the connecting part, and the rotating sleeve is rotatably connected to the connecting post. The telescopic rod is disposed on the rotating sleeve, and the first pressing block is rotatably connected to the side of the telescopic rod away from the rotating sleeve. The connecting rod is connected to the movable handle, and the second pressing block is connected to the side of the connecting rod away from the movable handle. The first pressing block and the second pressing block are in a pressing engagement.

[0009] More preferably, the telescopic rod has a built-in elastic element.

[0010] More preferably, the rotating sleeve is provided with a pressing rod, and the fixed handle is slidably connected to a pressing column, the pressing column and the pressing rod being pressed together.

[0011] More preferably, a first torsion spring is connected between the rotating sleeve and the connecting column, and a second torsion spring is connected between the first pressing block and the telescopic rod.

[0012] More preferably, a compression spring is connected between the pressing column and the fixed handle.

[0013] Compared with the prior art, the advantages of this utility model are: This utility model uses a movable handle to drive the connecting rod and the push frame to rotate, and the push frame drives the connecting rod to move, so that the upper clamp head rotates and cooperates with the lower clamp head to clamp the sample. At the same time, the connecting rod will drive the second squeezing block to rotate and squeeze the first squeezing block. After the second squeezing block passes the first squeezing block, the upper and lower clamp heads also clamp the sample. At this time, the first squeezing block abuts against the second squeezing block, thereby limiting the movable handle through the connecting rod, preventing the upper clamp head from loosening due to the movement of the movable handle, so that the operator can stably remove the sample. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the upper jaw, lower jaw, and blocking component of this utility model.

[0017] Figure 3 This is a cross-sectional three-dimensional structural schematic diagram of the present invention.

[0018] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention.

[0019] Figure labels: 1. Fixed handle; 2. Connecting part; 3. Movable handle; 4. Locking part; 5. Spring plate; 6. Outer sleeve; 7. Connecting rod; 8. Push frame; 9. Lower jaw; 10. Upper jaw; 11. Blocking element; 12. Connecting post; 13. Rotating sleeve; 14. Telescopic rod; 15. First pressing block; 16. Second pressing block; 17. Connecting rod; 18. Pressing rod; 19. Pressing post; 20. First torsion spring; 21. Second torsion spring; 22. Compression spring. Detailed Implementation

[0020] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0021] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] Specific embodiments of this utility model are shown in the appendix. Figure 1 - Appendix Figure 4 As shown, a cervical biopsy forceps with a locking function includes a fixed handle 1 and a connecting part 2. The fixed handle 1 is fixedly connected to the connecting part 2. A movable handle 3 is rotatably connected to the lower part of the connecting part 2. The movable handle 3 and the fixed handle 1 are used for gripping by hand. A locking part 4 is provided on the side of the movable handle 3 and the fixed handle 1 that is close to each other. A spring plate 5 is provided in the locking part 4. The two spring plates 5 are used to make the movable handle 3 return to its original position. The connecting part 2 is connected to an outer tube 6. A connecting rod 7 is slidably connected inside the outer tube 6. A push frame 8 is connected to the upper side of the movable handle 3. The push frame 8 is movably connected to the connecting rod 7. The outer tube 6 is away from the connecting rod 7. A lower clamp head 9 is connected to one side of the connecting part 2. The lower clamp head 9 has a through hole and four blocking parts 11 are installed in the through hole. An upper clamp head 10 is rotatably connected to the lower clamp head 9. The side of the upper clamp head 10 near the lower clamp head 9 is a friction surface, which is used to increase the friction with the sample and prevent the sample from slipping. The upper clamp head 10 is rotatably connected to the end of the connecting rod 7 away from the push frame 8. The push frame 8 is rotated by rotating the movable handle 3, which causes the push frame 8 to push the connecting rod 7 to move, thereby causing the connecting rod 7 to push the upper clamp head 10 to rotate and cooperate with the lower clamp head 9 to clamp the sample. The connecting part 2 is provided with a locking component, which is used to limit the movable handle 3.

[0027] The locking assembly includes a connecting post 12, a rotating sleeve 13, a telescopic rod 14, a first pressing block 15, a second pressing block 16, and a connecting rod 17. The connecting post 12 is located in the middle of the connecting part 2. The connecting post 12 is rotatably connected to the rotating sleeve 13. The rotating sleeve 13 is equipped with a telescopic rod 14, which has a built-in elastic element. The side of the telescopic rod 14 away from the rotating sleeve 13 is rotatably connected to the first pressing block 15. The upper side of the movable handle 3 is connected to the connecting rod 17. The side of the connecting rod 17 away from the movable handle 3 is connected to the second pressing block 16. The first pressing block 15 and the second pressing block 16 are in a pressing engagement. The rotating sleeve 13 is fixedly connected to the pressing rod 18. The upper side of the fixed handle 1 is slidably connected to the pressing post 19, which is in a pressing engagement with the pressing rod 18. A first torsion spring 20 is connected between the rotating sleeve 13 and the connecting post 12. A second torsion spring 21 is connected between the first pressing block 15 and the telescopic rod 14. A compression spring 22 is connected between the pressing post 19 and the fixed handle 1.

[0028] Specifically, when using this sampling forceps, the operator inserts their fingers into the movable handle 3, grips the fixed handle 1 with their thumb, and then places the outer sleeve 6 into the area to be sampled. The fingers then move towards the palm, causing the movable handle 3 to rotate, which in turn rotates the connecting rod 17 and the pusher 8. The pusher 8 rotates, causing the connecting rod 7 to move, causing the upper clamp head 10 to rotate and cooperate with the lower clamp head 9 to clamp the sample. To prevent the sample from slipping due to operator hand movements after clamping, the connecting rod 17 simultaneously rotates the second compression block 16, causing it to squeeze the first compression block 15. This causes the telescopic rod 14 to retract. After the second compression block 16 passes the first compression block 15, the upper clamp head 10 and the lower clamp head 9 clamp the sample. At this point, the first compression block 15 presses against the second compression block 16, thereby limiting the movable handle 3 via the connecting rod 17 to prevent the operator's hand from slipping. The upper clamp head 10 loosens due to the movement of handle 3. After the sample is removed, the operator manually presses the pressing column 19, causing the pressing column 19 to squeeze the squeezing rod 18, thereby driving the rotating sleeve 13 to rotate. The first torsion spring 20 deforms, causing the telescopic rod 14 and the first squeezing block 15 to rotate together, thereby releasing the limit on the second squeezing block 16, allowing the movable handle 3 to return to its original position. The upper clamp head 10 releases the sample. Then the operator releases the pressing column 19, and the compression spring 22 drives the pressing column 19 to return to its original position. The first torsion spring 20 drives the rotating sleeve 13 to rotate and return to its original position. During the rotation and return process of the first squeezing block 15, it will come into contact with the second squeezing block 16. At this time, because the return force of the first torsion spring 20 is greater than the elastic force of the second torsion spring 21, the first squeezing block 15 rotates until it passes the second squeezing block 16 and then returns to its original position. In this way, the sample can be removed stably.

[0029] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A colposcopic tenaculum having a detent function, characterized in that, The utility model provides a kind of adjustable pliers, including fixed handle (1) and connecting part (2), the fixed handle (1) is fixedly connected with the connecting part (2), the connecting part (2) is rotatably connected with movable handle (3), the movable handle (3) and the side of fixed handle (1) close are provided with clamping portion (4), spring leaf (5) is provided in the clamping portion (4), the connecting part (2) is connected with outer sleeve (6), the outer sleeve (6) is slidably connected with connecting rod (7), the movable handle (3) is connected with push frame (8), the push frame (8) is movably connected with the connecting rod (7), the outer sleeve (6) is connected with lower plier head (9) on the side away from the connecting part (2), the lower plier head (9) is rotatably connected with upper plier head (10), the upper plier head (10) is rotatably connected with the connecting rod (7) away from the push frame (8), the connecting part (2) is provided with clamping assembly, and the clamping assembly is used for limiting the movable handle (3).

2. The cervical biopsy forceps with a detent function according to claim 1, wherein, The lower plier head (9) is provided with a through hole, and at least one blocking piece (11) is arranged in the through hole of the lower plier head (9).

3. The cervical biopsy forceps with a detent function according to claim 2, wherein, The upper plier head (10) is a friction surface on the side close to the lower plier head (9).

4. The cervical biopsy forceps with a detent function according to claim 1, wherein The clamping assembly includes a connecting column (12), a rotating sleeve (13), an extension rod (14), a first extrusion block (15), a second extrusion block (16), and a connecting rod (17). The connecting column (12) is arranged in the connecting part (2). The connecting column (12) is rotatably connected with the rotating sleeve (13). The rotating sleeve (13) is provided with the extension rod (14). The extension rod (14) is rotatably connected with the first extrusion block (15) on the side away from the rotating sleeve (13). The connecting rod (17) is connected with the movable handle (3). The connecting rod (17) is connected with the second extrusion block (16) on the side away from the movable handle (3). The first extrusion block (15) and the second extrusion block (16) are extruded and matched.

5. The cervical biopsy forceps with a detent function according to claim 4, wherein The extension rod (14) is provided with an elastic member.

6. The cervical biopsy forceps with a detent function according to claim 5, wherein The rotating sleeve (13) is provided with an extrusion rod (18). The fixed handle (1) is slidably connected with a pressing column (19). The pressing column (19) is extruded and matched with the extrusion rod (18).

7. The cervical biopsy forceps with a detent function according to claim 6, wherein The rotating sleeve (13) and the connecting column (12) are connected with a first torsion spring (20). The first extrusion block (15) and the extension rod (14) are connected with a second torsion spring (21).

8. The cervical biopsy forceps with a detent function according to claim 7, wherein The pressing column (19) and the fixed handle (1) are connected with a compression spring (22).

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