Biopsy forceps with hemostasis function

Abstract

The utility model relates to the technical field of medical instruments, in particular to biopsy forceps with a hemostasis function, which comprise a hose, a movable forceps seat and a tension component, the tension component comprises a threaded rod and a scale ring, one end of the hose is provided with an extending end, the other end of the hose is provided with an operating end, a transmission pull rope is arranged inside the hose, and the transmission pull rope is connected with the movable forceps seat. Two movable clamp seats are arranged on one side of the extending-in end and rotationally connected with the extending-in end, reset springs are arranged in the movable clamp seats, a tension seat is arranged in the operating end and slidably connected with the operating end, and a threaded rod is arranged in the tension seat and in threaded connection with the tension seat. A scale ring is arranged at the end, away from the tension base, of the threaded rod and fixedly connected with the threaded rod, and the scale ring is rotationally connected with the operation end. According to the utility model, the pulling force mode of the transmission pull rope is changed, and the transmission pull rope is pulled by using a mechanical mechanism, so that the pulling precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to biopsy forceps with hemostatic function. Background Technology

[0002] Biopsy forceps are an indispensable tool for obtaining pathological specimens during endoscopic examinations. They are typically used to collect live tissue samples for pathological examination or disease diagnosis.

[0003] Most existing biopsy forceps are operated manually by pulling the pull cords to bring the forceps heads closer together to grasp the tissue. This method makes it difficult to precisely control the length of the pull cords, thus making it impossible to accurately control the gripping force of the forceps heads, which may cause harm to the patient.

[0004] Therefore, to address the above problems, a biopsy forceps with hemostasis function can be designed, changing the way the transmission pull rope is pulled, and using a mechanical mechanism to pull the transmission pull rope to improve the pulling accuracy. Utility Model Content

[0005] To overcome the problem that most biopsy forceps rely on manual pulling of the pull cord to bring the forceps heads closer together to grasp tissue, this method makes it difficult to precisely control the length of the pull cord, thus making it impossible to accurately control the gripping force of the forceps heads, which may cause harm to the patient.

[0006] The technical solution of this utility model is as follows: a biopsy forceps with hemostasis function, including a flexible tube, a movable forceps seat, and a tension assembly. The tension assembly includes a threaded rod and a graduated ring. One end of the flexible tube is provided with an insertion end, and the other end of the flexible tube is provided with an operating end. A transmission pull rope is provided inside the flexible tube. A movable forceps seat is provided on one side of the insertion end. Two sets of movable forceps seats are provided and rotatably connected to the insertion end. A return spring is provided inside the movable forceps seat. A tension seat is provided inside the operating end. The tension seat is slidably connected to the operating end. A threaded rod is provided inside the tension seat. The threaded rod is threadedly connected to the tension seat. A graduated ring is provided at the end of the threaded rod away from the tension seat. The graduated ring is fixedly connected to the threaded rod and rotatably connected to the operating end.

[0007] Preferably, the insert end has a rotating shaft inside, the movable clamp is rotatably connected to the rotating shaft, a linkage mechanism is provided on one side of the movable clamp, and a movable seat is provided at one end of the linkage mechanism, the movable seat is slidably connected to the insert end.

[0008] Preferably, a limit ring is provided inside the inserted end. The inner force of the limit ring is less than the inner diameter of the return spring. The return spring is located between the limit ring and the movable seat. One end of the transmission pull rope passes through the limit ring and the return spring and is fixedly connected to the movable seat.

[0009] Preferably, one side of the movable clamp seat is provided with a cutting edge, the cutting edge of which is sharp, and the other side of the movable clamp seat is provided with a compression hemostasis edge, the compression hemostasis edge of which is flat.

[0010] Preferably, a connecting seat is provided on one side of the tension seat, the connecting seat is fixedly connected to the transmission pull rope, a guide groove is provided on the outer side of the tension seat, and a guide rail is provided inside the operating end, the guide rail and the guide groove are interlocked and slidably connected.

[0011] Preferably, an observation window is provided at the end of the operating end away from the tension seat, and a pointer is provided on one side of the observation window.

[0012] Preferably, a connecting rod is provided on the side of the scale ring away from the threaded rod, the connecting rod passes through the operating end, and a force-generating handle is provided at one end of the connecting rod.

[0013] The beneficial effects of this utility model are:

[0014] By connecting the tension seat to the transmission rope, the threaded rod can be rotated when the transmission rope needs to be pulled. The threaded connection between the threaded rod and the tension seat allows the tension seat to slide inside the operating end and drive the transmission rope. During this process, the scale ring rotates with the threaded rod. Medical staff only need to observe the changes in the scale ring to accurately control the length of the transmission rope being pulled, thereby precisely controlling the clamping force of the movable clamp. At the same time, the mechanical fit between the threaded rod and the tension seat has self-locking properties, which can prevent the transmission rope from loosening. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the biopsy forceps with hemostatic function of this utility model.

[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of the movable forceps seat of the biopsy forceps with hemostasis function of this utility model.

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the tension seat of the biopsy forceps with hemostasis function of this utility model.

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the threaded rod of the biopsy forceps with hemostatic function of this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Hose; 2. Insertion end; 3. Operating end; 4. Movable clamp seat; 5. Return spring; 6. Drive rope; 7. Pull seat; 8. Threaded rod; 9. Scale ring; 301. Observation window; 302. Pointer; 401. Rotation shaft; 402. Linkage mechanism; 403. Movable seat; 404. Limiting ring; 405. Shearing blade edge; 406. Compression hemostasis edge; 701. Connecting seat; 702. Guide groove; 703. Guide rail; 901. Connecting rod; 902. Force grip. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-4 This utility model provides an embodiment of a biopsy forceps with hemostasis function, including a flexible tube 1, a movable forceps seat 4, and a tension assembly. The tension assembly includes a threaded rod 8 and a graduated ring 9. One end of the flexible tube 1 is provided with an insertion end 2, and the other end of the flexible tube 1 is provided with an operating end 3. A transmission pull rope 6 is provided inside the flexible tube 1. The movable forceps seat 4 is provided on one side of the insertion end 2. Two sets of movable forceps seats 4 are provided and rotatably connected to the insertion end 2. A return spring 5 is provided inside the movable forceps seat 4. A tension seat 7 is provided inside the operating end 3. The tension seat 7 is slidably connected to the operating end 3. The threaded rod 8 is provided inside the tension seat 7 and is threadedly connected to the tension seat 7. The threaded rod 8 is located away from the tension seat 7. The end is equipped with a graduated ring 9, which is fixedly connected to the threaded rod 8 and rotatably connected to the operating end 3. A tension seat 7 is connected to the transmission rope 6. When the transmission rope 6 needs to be pulled, the threaded rod 8 can be rotated. The threaded connection between the threaded rod 8 and the tension seat 7 allows the tension seat 7 to slide inside the operating end 3 and drive the transmission rope 6 to move. During this process, the graduated ring 9 will rotate with the threaded rod 8. Medical staff only need to observe the scale change of the graduated ring 9 to accurately control the length of the transmission rope 6 being pulled, thereby accurately controlling the clamping force of the movable clamp seat 4. At the same time, the mechanical cooperation between the threaded rod 8 and the tension seat 7 has self-locking properties, which can prevent the transmission rope 6 from loosening.

[0022] Please see Figure 2In this embodiment, a rotating shaft 401 is provided inside the insertion end 2. The movable clamp seat 4 is rotatably connected to the rotating shaft 401. A linkage mechanism 402 is provided on one side of the movable clamp seat 4. A movable seat 403 is provided at one end of the linkage mechanism 402. The movable seat 403 is slidably connected to the insertion end 2. A limit ring 404 is provided inside the insertion end 2. The inner force of the limit ring 404 is less than the inner diameter of the return spring 5. The return spring 5 is located between the limit ring 404 and the movable seat 403. One end of the transmission pull rope 6 passes through the limit ring 404 and the return spring 5 and is fixedly connected to the movable seat 403. A shearing blade edge 405 is provided on one side of the movable clamp seat 4. The edge of the shearing blade edge 405 is sharp. A shearing blade edge 405 is provided on the other side of the movable clamp seat 4. The pressure hemostatic edge 406 is flat. When the transmission rope 6 is pulled, it will drive the movable seat 403 to slide inside the insertion end 2 and compress the return spring 5. The moving movable seat 403 drives the linkage mechanism 402 to deform, so that the two sets of movable clamp seats 4 move closer to each other to clamp. The rotating shaft 401 rotates and connects the movable clamp seat 4 to the insertion end 2. When it is necessary to cut the tissue, the cutting edge 405 is pressed against the tissue and the transmission rope 6 is pulled to cut off the tissue with the sharp cutting edge 405. When it is necessary to stop bleeding, the pressure hemostatic edge 406 is pressed against the tissue and the transmission rope 6 is pulled. The pressure hemostatic edge 406 will compress the tissue and make the tissue adhere, and use blood to seal the wound of the tissue.

[0023] Please see Figure 3 In this embodiment, a connecting seat 701 is provided on one side of the tension seat 7, and the connecting seat 701 is fixedly connected to the transmission pull rope 6. A guide groove 702 is provided on the outer side of the tension seat 7, and a guide rail 703 is provided inside the operating end 3. The guide rail 703 and the guide groove 702 are interlocked and slidably connected. An observation window 301 is provided at the end of the operating end 3 away from the tension seat 7, and a pointer 302 is provided on one side of the observation window 301. The connecting seat 701 is used to connect the transmission pull rope 6. The cooperation between the guide groove 702 and the guide rail 703 slidably connects the tension seat 7 and the operating end 3, and guides the movement of the tension seat 7 to prevent the tension seat 7 from rotating with the threaded rod 8. The observation window 301 and the pointer 302 are used to observe the scale of the scale ring 9.

[0024] Please see Figure 4 In this embodiment, a connecting rod 901 is provided on the side of the scale ring 9 away from the threaded rod 8. The connecting rod 901 passes through the operating end 3, and a force-generating handle 902 is provided at one end of the connecting rod 901. The connecting rod 901 connects the force-generating handle 902 to the scale ring 9, and medical staff can hold the force-generating handle 902 to generate force and drive the threaded rod 8 to rotate.

[0025] During use, medical staff can grip the force-generating handle 902 to rotate the threaded rod 8. The threaded connection between the threaded rod 8 and the tension seat 7 causes the tension seat 7 to slide inside the operating end 3, driving the transmission rope 6. During this process, the scale ring 9 rotates with the threaded rod 8. Medical staff can accurately determine the length of pull on the transmission rope 6 by observing the scale of the scale ring 9 and the position of the pointer 302 through the observation window 301. This allows for precise control of the clamping force of the movable clamp seat 4. Simultaneously, the mechanical engagement between the threaded rod 8 and the tension seat 7 is self-locking, preventing the transmission rope 6 from loosening. When pulled, the movable seat 403 slides inside the insertion end 2 and compresses the return spring 5. The moving movable seat 403 causes the linkage mechanism 402 to deform, bringing the two sets of movable clamps 4 closer together for clamping. The rotating shaft 401 rotatably connects the movable clamps 4 to the insertion end 2. When tissue needs to be cut, the cutting edge 405 is pressed against the tissue and the transmission rope 6 is pulled to cut off the tissue using the sharp cutting edge 405. When hemostasis is needed, the compression hemostasis edge 406 is pressed against the tissue and the transmission rope 6 is pulled. The compression hemostasis edge 406 will compress the tissue and make the tissue adhere, using blood to seal the wound of the tissue.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A biopsy forceps with hemostatic function, comprising a flexible tube (1); characterized in that: It also includes a movable clamp seat (4) and a tension assembly. The tension assembly includes a threaded rod (8) and a graduated ring (9). One end of the hose (1) is provided with an insertion end (2), and the other end of the hose (1) is provided with an operating end (3). The hose (1) is provided with a transmission pull rope (6). The insertion end (2) is provided with a movable clamp seat (4) on one side. The movable clamp seat (4) is provided with two sets and is rotatably connected to the insertion end (2). The movable clamp seat (4) is provided with a return spring (5) inside. The operating end (3) is provided with a tension seat (7) inside. The tension seat (7) is slidably connected to the operating end (3). The tension seat (7) is provided with a threaded rod (8) inside. The threaded rod (8) is threadedly connected to the tension seat (7). The end of the threaded rod (8) away from the tension seat (7) is provided with a graduated ring (9). The graduated ring (9) is fixedly connected to the threaded rod (8). The graduated ring (9) is rotatably connected to the operating end (3).

2. The biopsy forceps with hemostatic function according to claim 1, characterized in that: The inside of the insertion end (2) is provided with a rotating shaft (401), the movable clamp (4) is rotatably connected to the rotating shaft (401), a linkage mechanism (402) is provided on one side of the movable clamp (4), a movable seat (403) is provided at one end of the linkage mechanism (402), and the movable seat (403) is slidably connected to the insertion end (2).

3. The biopsy forceps with hemostatic function according to claim 2, characterized in that: A limiting ring (404) is provided inside the insertion end (2). The inner force of the limiting ring (404) is less than the inner diameter of the return spring (5). The return spring (5) is located between the limiting ring (404) and the movable seat (403). One end of the transmission pull rope (6) passes through the limiting ring (404) and the return spring (5) and is fixedly connected to the movable seat (403).

4. The biopsy forceps with hemostatic function according to claim 1, characterized in that: The movable clamp seat (4) has a shearing edge (405) on one side, the edge of which is sharp, and a compression hemostasis edge (406) on the other side, the edge of which is flat.

5. The biopsy forceps with hemostatic function according to claim 1, characterized in that: A connecting seat (701) is provided on one side of the tension seat (7). The connecting seat (701) is fixedly connected to the transmission pull rope (6). A guide groove (702) is provided on the outer side of the tension seat (7). A guide rail (703) is provided inside the operating end (3). The guide rail (703) and the guide groove (702) are interlocked and slidably connected.

6. The biopsy forceps with hemostatic function according to claim 1, characterized in that: An observation window (301) is provided at the end of the operating end (3) away from the tension seat (7), and a pointer (302) is provided on one side of the observation window (301).

7. The biopsy forceps with hemostatic function according to claim 1, characterized in that: A connecting rod (901) is provided on the side of the scale ring (9) away from the threaded rod (8). The connecting rod (901) passes through the operating end (3). A force-generating handle (902) is provided at one end of the connecting rod (901).

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