Sampling pliers convenient to rotate

Abstract

The utility model discloses sampling forceps convenient to rotate, and relates to the technical field of medical instruments. The sampling clamp convenient to rotate comprises an outer tube and a clamp head assembly arranged at the end of the outer tube, the clamp head assembly is rotationally connected with the outer tube, the sampling clamp further comprises a synchronous wire arranged in the outer tube in a penetrating mode, the synchronous wire is in clearance fit with the outer tube, and one end of the synchronous wire penetrates out of the outer tube and is connected with the clamp head assembly. According to the sampling forceps, the synchronous wire on the sampling forceps can transmit the rotating action of a doctor to the forceps head assembly in real time, so that the forceps head assembly and the synchronous wire can synchronously rotate, the clamping efficiency of the doctor on diseased tissues is effectively improved, and the operation quality and the operation efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a conveniently rotatable sampling forceps. Background Art

[0002] Sampling forceps are an essential tool in clinical endoscopic examinations. They can reach the lesion site through the endoscopic forceps channel and clamp the lesion tissue for pathological examination. Existing sampling forceps usually include an outer tube, a clamp head and a control line. The two clamp heads are rotatably connected to the outer tube. The control line is passed through the outer tube and connected to the clamp head through a connecting rod. During surgery, the outer tube is inserted into the patient's body, and then the control line is pulled and the two clamp heads are controlled to open or close relative to each other through the connecting rod, so as to clamp the lesion tissue.

[0003] During the operation, after the doctor inserts the sampling forceps into the patient's body, he needs to rotate the outer tube to drive the forceps head to rotate, so as to adjust the position and angle of the forceps head and smoothly clamp the diseased tissue. However, the existing sampling forceps, because the outer tube is a soft tube, when the doctor rotates the outer tube, the rotation of the outer tube cannot be transmitted to the forceps head in real time, resulting in the forceps head being unable to rotate synchronously with the outer tube, which greatly affects the doctor's real-time judgment of the position and angle of the forceps head, making it impossible for the forceps head to smoothly clamp the diseased tissue, greatly reducing the quality and efficiency of the operation. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the present application provides a sampling forceps that is easy to rotate.

[0005] The present application provides a conveniently rotating sampling forceps adopting the following technical solution:

[0006] A sampling forceps that is easy to rotate, comprising an outer tube and a clamp head assembly arranged at the end of the outer tube, the clamp head assembly is rotatably connected to the outer tube, the sampling forceps also include a synchronization wire passed through the outer tube, the synchronization wire is gap-matched with the outer tube, one end of the synchronization wire passes through the outer tube and is connected to the clamp head assembly.

[0007] By adopting the above technical solution, the synchronization wire can transmit the doctor's rotation movement to the forceps head assembly in real time, so that the forceps head assembly can rotate synchronously with the synchronization wire, effectively improving the doctor's efficiency in clamping the diseased tissue, and improving the quality and efficiency of the operation.

[0008] In a specific feasible implementation scheme, the pliers head assembly includes a pliers head seat, on which are disposed two pliers heads that can be relatively opened or closed, and a transmission member that can slide along the axial direction of the outer tube, the two pliers heads are respectively rotatably connected to the pliers head seat, one end of the transmission member is rotatably connected to the two pliers heads, and the other end is connected to the synchronization wire, and the rotation axis between the pliers heads and the pliers head seat and the rotation axis between the transmission member and the pliers heads are parallel to each other.

[0009] By adopting the above technical solution, the synchronous wire and the pliers head can be linked through the transmission member.

[0010] In a specific feasible implementation scheme, the transmission member includes a first transmission part and two connecting rods rotatably connected to both sides of the first transmission part, the two connecting rods correspond one-to-one to the two pliers heads, the corresponding connecting rods and the pliers heads are rotatably connected, and the rotation axis between the connecting rod and the first transmission part and the rotation axis between the connecting rod and the pliers heads are parallel to each other.

[0011] By adopting the above technical solution, the two forceps heads can be linked with the first transmission part through two connecting rods respectively, so that the doctor can control the two forceps heads at the same time.

[0012] In a specific implementation scheme, a connecting shaft is provided on the first transmission part along its width direction, the connecting shaft is rotatable around its own axis direction, and the two connecting rods are respectively connected to both ends of the connecting shaft.

[0013] By adopting the above technical solution, the two connecting rods can rotate synchronously under the drive of the connecting shaft, thereby improving the clamping stability of the two clamp heads.

[0014] In a specific implementation scheme, the transmission member also includes a second transmission part connected to one end of the first transmission part, the second transmission part is rotatably inserted into the outer tube and has a first connecting groove thereon, and the synchronization wire is inserted into the first connecting groove.

[0015] By adopting the above technical solution, the connection strength between the synchronous wire and the transmission member is effectively improved.

[0016] In a specific feasible implementation scheme, the clamp head seat includes a connecting portion and a mounting portion, the connecting portion is rotatably connected to the outer tube, the mounting portion is rotatably connected to the two clamp heads, a guide groove is provided on the connecting portion along the length direction of the outer tube, and the second transmission portion is inserted into the guide groove and has a clearance fit with the guide groove.

[0017] By adopting the above technical solution, the activity stability of the second transmission part is effectively improved, so that the two clamp heads can be stably opened and closed.

[0018] In a specific possible implementation manner, a hollow connection seat is provided at the end of the outer tube, the connection seat is rotatably connected to the connection part, and the synchronization wire is passed through the connection seat.

[0019] In a specific possible implementation mode, a second connecting groove is further provided on the connecting portion, the second connecting groove is communicated with the guiding groove, and the connecting seat is rotatably inserted in the second connecting groove.

[0020] By adopting the above technical solution, the connection strength between the connecting seat and the clamp head assembly is effectively improved.

[0021] In a specific possible implementation scheme, the connecting seat includes a seat body and a limiting cylinder sleeved on the seat body, one end of the seat body is inserted into the second connecting groove and the other end is provided with a limiting ring, and both ends of the limiting cylinder respectively conflict with the limiting ring and the connecting part.

[0022] By adopting the above technical solution, the limiting cylinder can resist the clamp head assembly to prevent the clamp head assembly from deviating during the rotation process.

[0023] In a specific feasible implementation scheme, a mounting groove is provided on the mounting portion, the guide groove is connected to the mounting groove, the first transmission portion and the two connecting rods are both accommodated in the mounting groove, the two clamp heads are partially accommodated in the mounting groove and one end thereof is arranged to pass through the mounting groove.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] The sampling forceps of the present application have a synchronization wire thereon which can transmit the doctor's rotational movement to the forceps head assembly in real time, so that the forceps head assembly can rotate synchronously with the synchronization wire, effectively improving the doctor's efficiency in clamping the diseased tissue, and improving the quality and efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the sampling forceps according to an embodiment of the present application.

[0027] Figure 2 yes Figure 1 Schematic diagram of the AA section.

[0028] Description of reference numerals:

[0029] 1. Outer tube; 2. Clamp head assembly; 21. Clamp head seat; 211. Connecting part; 212. Mounting part; 213. Guide groove; 214. Second connecting groove; 215. Mounting groove; 216. Make way opening; 217. Clamping opening; 22. Clamp head; 23. Transmission member; 231. First transmission part; 232. Connecting rod; 233. Connecting shaft; 234. Second transmission part; 235. First connecting groove; 3. Synchronous wire; 4. Connecting seat; 41. Seat body; 42. Limiting cylinder; 43. Limiting ring. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] See also Figure 1-2 As shown, a sampling forceps that is easy to rotate is shown, which includes an outer tube 1 and a clamp head assembly 2 arranged at the end of the outer tube 1. The clamp head assembly 2 is rotatably connected to the outer tube 1 and the rotation axes of the two coincide with the axial center line of the outer tube 1.

[0032] The sampling forceps also include a synchronous wire 3 coaxially inserted into the outer tube 1, the synchronous wire 3 is clearance-matched with the outer tube 1, and both ends of the outer tube 1 have openings respectively. One end of the synchronous wire 3 passes through the outer tube 1 and is connected to the forceps head assembly 2, and the other end passes through the outer tube 1 and is held by the doctor.

[0033] When the doctor rotates the synchronous wire 3, the synchronous wire 3 can transmit the doctor's rotation action to the forceps head assembly 2 in real time, so that the forceps head assembly 2 can rotate synchronously with the synchronous wire 3, effectively improving the doctor's efficiency in clamping the diseased tissue, and improving the quality and efficiency of the operation. Among them, the synchronous wire 3 is a synchronous rotating guide wire in the prior art, and the specific structure and principle are not repeated here.

[0034] In this embodiment, the clamp head assembly 2 includes a clamp head seat 21 coaxially arranged at the end of the outer tube 1, two clamp heads 22 that can be relatively opened or closed are arranged at the end of the clamp head seat 21, and a transmission member 23 that can slide along the axial direction of the outer tube 1 is coaxially arranged in the middle of the clamp head seat 21. The middle of the two clamp heads 22 are respectively rotatably connected to the clamp head seat 21, one end of the transmission member 23 is rotatably connected to the ends of the two clamp heads 22, and the other end is connected to the synchronous wire 3. The rotation axis between the clamp head 22 and the clamp head seat 21, and the rotation axis between the transmission member 23 and the clamp head 22 are parallel to each other. The transmission member 23 can not only transmit the sliding stroke of the synchronous wire 3 and drive the two clamp heads 22 to open and close relatively, but also transmit the rotation stroke of the synchronous wire 3 and drive the clamp head assembly 2 to rotate.

[0035] The transmission member 23 includes a first transmission part 231, and a connecting shaft 233 is arranged on the first transmission part 231 along its width direction. The connecting shaft 233 is rotatable around its own axis center line direction. Connecting rods 232 are respectively connected to both ends of the connecting shaft 233. The two connecting rods 232 correspond to the two pliers 22 one by one. The corresponding connecting rods 232 and the pliers 22 are rotatably connected, and the rotation axis between the connecting rod 232 and the first transmission part 231 and the rotation axis between the connecting rod 232 and the pliers 22 are parallel to each other.

[0036] In this way, the two forceps heads 22 can be linked with the first transmission part 231 through the two connecting rods 232 respectively, so that the doctor can control the two forceps heads 22 at the same time; at the same time, the two connecting rods 232 and the two forceps heads 22 can form a four-bar linkage mechanism, and the two connecting rods 232 are driven to rotate synchronously through the connecting shaft 233, thereby improving the clamping stability of the two forceps heads 22.

[0037] In this embodiment, the transmission member 23 further includes a second transmission part 234 connected to one end of the first transmission part 231, the second transmission part 234 is rotatably inserted into the outer tube 1 and is provided with a first connecting groove 235, and the synchronous wire 3 is inserted into the first connecting groove 235. The provision of the first connecting groove 235 can effectively improve the connection strength between the synchronous wire 3 and the transmission member 23.

[0038] In this embodiment, the clamp head seat 21 includes a connecting portion 211 and a mounting portion 212, the connecting portion 211 is rotatably connected to the outer tube 1, the mounting portion 212 is rotatably connected to the two clamp heads 22, a guide groove 213 is provided on the connecting portion 211 along the length direction of the outer tube 1, and the second transmission portion 234 is penetrated in the guide groove 213 and is clearance-matched with the guide groove 213. The guide groove 213 can effectively improve the activity stability of the second transmission portion 234, so that the two clamp heads 22 can be stably opened and closed.

[0039] A hollow connection seat 4 is provided at the end of the outer tube 1, and the connection seat 4 is rotatably connected to the connection portion 211, and the synchronous wire 3 is inserted into the connection seat 4. A second connection groove 214 is also provided at one end of the connection portion 211 close to the connection seat 4, and the second connection groove 214 is connected to the guide groove 213 and the groove diameter of the second connection groove 214 is larger than the groove diameter of the guide groove 213, and the connection seat 4 can be rotatably inserted into the second connection groove 214. The second connection groove 214 can effectively improve the connection strength between the connection seat 4 and the clamp head assembly 2.

[0040] In this embodiment, the connection seat 4 includes a seat body 41, a limiting cylinder 42 sleeved on the seat body 41, one end of the seat body 41 is inserted into the second connection groove 214, and the other end is provided with a limiting ring 43, and the two ends of the limiting cylinder 42 are respectively in conflict with the limiting ring 43 and the connecting portion 211. The limiting cylinder 42 can resist the clamp head assembly 2 to prevent the clamp head assembly 2 from deviating during the rotation process. Among them, the outer diameters of the outer tube 1, the limiting ring 43, the limiting cylinder 42 and the connecting portion 211 are all the same.

[0041] The mounting portion 212 is provided with a mounting groove 215, the guide groove 213 is connected to the mounting groove 215, the first transmission portion 231 and the two connecting rods 232 are both accommodated in the mounting groove 215, and the two clamp heads 22 are partially accommodated in the mounting groove 215 and one end thereof is arranged to pass through the mounting groove 215. The mounting groove 215 is provided with a clearance opening 216 for the two connecting rods 232 to move on both sides, and a clamping opening 217 for the clamp heads 22 to pass through is provided at the end.

[0042] The implementation principle of a sampling clamp in the embodiment of the present application is:

[0043] The forceps head assembly 2 and the outer tube 1 are inserted into the patient's body, and then the synchronization wire 3 is rotated. The synchronization wire 3 drives the forceps head assembly 2 to rotate and keeps the two forceps heads 22 at an angle convenient for sampling. Then the synchronization wire 3 is pushed and pulled. The synchronization wire 3 drives the two forceps heads 22 to rotate and open and close relatively through the transmission member 23 and the two connecting rods 232, thereby clamping the diseased tissue.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A conveniently rotatable sampling forceps, comprising an outer tube (1), a forceps head assembly (2) arranged at the end of the outer tube (1), characterized in that: The clamp head assembly (2) is rotatably connected to the outer tube (1), and the sampling forceps further include a synchronization wire (3) inserted into the outer tube (1), the synchronization wire (3) and the outer tube (1) are clearance-matched, and one end of the synchronization wire (3) passes through the outer tube (1) and is connected to the clamp head assembly (2).

2. The conveniently rotatable sampling forceps according to claim 1, characterized in that: The pliers head assembly (2) comprises a pliers head seat (21), on which are arranged two pliers heads (22) which can be relatively opened or closed, and a transmission member (23) which can slide along the axial direction of the outer tube (1), the two pliers heads (22) are respectively rotatably connected to the pliers head seat (21), one end of the transmission member (23) is rotatably connected to the two pliers heads (22), and the other end is connected to the synchronization wire (3), and the rotation axis between the pliers heads (22) and the pliers head seat (21) and the rotation axis between the transmission member (23) and the pliers heads (22) are parallel to each other.

3. The conveniently rotatable sampling forceps according to claim 2, characterized in that: The transmission member (23) comprises a first transmission part (231), and two connecting rods (232) rotatably connected to two sides of the first transmission part (231), the two connecting rods (232) corresponding to the two pliers (22) one by one, the corresponding connecting rods (232) and the pliers (22) being rotatably connected, and the rotation axis between the connecting rod (232) and the first transmission part (231) and the rotation axis between the connecting rod (232) and the pliers (22) are parallel to each other.

4. The conveniently rotatable sampling forceps according to claim 3, characterized in that: A connecting shaft (233) is arranged on the first transmission part (231) along its width direction. The connecting shaft (233) is rotatable around its own axis direction. The two connecting rods (232) are respectively connected to the two ends of the connecting shaft (233).

5. The conveniently rotatable sampling forceps according to claim 3, characterized in that: The transmission member (23) further comprises a second transmission part (234) connected to one end of the first transmission part (231); the second transmission part (234) is rotatably inserted into the outer tube (1) and is provided with a first connecting groove (235); the synchronization wire (3) is inserted into the first connecting groove (235).

6. The conveniently rotatable sampling forceps according to claim 5, characterized in that: The clamp head seat (21) comprises a connecting portion (211) and a mounting portion (212); the connecting portion (211) is rotatably connected to the outer tube (1); the mounting portion (212) is rotatably connected to the two clamp heads (22); a guide groove (213) is provided on the connecting portion (211) along the length direction of the outer tube (1); the second transmission portion (234) is inserted into the guide groove (213) and is clearance-matched with the guide groove (213).

7. The conveniently rotatable sampling forceps according to claim 6, characterized in that: The end of the outer tube (1) is provided with a hollow connection seat (4), the connection seat (4) is rotatably connected to the connection portion (211), and the synchronization wire (3) is inserted into the connection seat (4).

8. The conveniently rotatable sampling forceps according to claim 7, characterized in that: The connecting portion (211) is also provided with a second connecting groove (214), the second connecting groove (214) is communicated with the guide groove (213), and the connecting seat (4) is rotatably inserted into the second connecting groove (214).

9. The conveniently rotatable sampling forceps according to claim 8, characterized in that: The connecting seat (4) comprises a seat body (41) and a limiting cylinder (42) sleeved on the seat body (41); one end of the seat body (41) is inserted into the second connecting groove (214) and the other end is provided with a limiting ring (43); the two ends of the limiting cylinder (42) are respectively in conflict with the limiting ring (43) and the connecting portion (211).

10. The conveniently rotatable sampling forceps according to claim 7, characterized in that: The mounting portion (212) is provided with a mounting groove (215), the guide groove (213) is communicated with the mounting groove (215), the first transmission portion (231) and the two connecting rods (232) are both accommodated in the mounting groove (215), and the two clamp heads (22) are partially accommodated in the mounting groove (215) with one end thereof passing through the mounting groove (215).

Images