CN-224206846-U - Medical instrument

CN224206846UCN 224206846 UCN224206846 UCN 224206846UCN-224206846-U

Abstract

The utility model discloses a medical instrument which comprises a clamp head assembly, a support tube assembly, a power plug and a handle assembly, wherein one end of the clamp head assembly is connected with the far end of the support tube assembly, the near end of the support tube assembly is connected with the handle assembly, the handle assembly comprises a first movable handle, a second movable handle and a fixed handle, the first movable handle, the second movable handle and the fixed handle are connected in a sliding mode, the first movable handle and the second movable handle can slide left and right relative to the fixed handle, a cavity is formed in the first movable handle, one end of the power plug is arranged in the cavity, the support tube assembly is formed by sleeving a driving rope, a smooth layer, a support tube and an insulating tube from inside to outside, the smooth layer is arranged outside the driving rope, the driving rope is used for controlling opening and closing actions of the clamp head assembly, the outer wall of the support tube is provided with a plurality of threads with unequal pitches, and the power plug is electrically connected with the clamp head assembly through the driving rope. The medical apparatus of the utility model has the functions of both biopsy forceps and an electrocoagulator.

Inventors

HUANG YUNFENG
TANG ZHI
YE CHENGYOU
FAN MINGQIAO

Assignees

南微医学科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241218

Claims (12)

1. The medical instrument is characterized by comprising a clamp head assembly, a support tube assembly, a power plug and a handle assembly, wherein one end of the clamp head assembly is connected with the distal end of the support tube assembly, and the proximal end of the support tube assembly is connected with the handle assembly; The handle assembly comprises a first movable handle, a second movable handle and a fixed handle, wherein the first movable handle, the second movable handle and the fixed handle are connected in a sliding manner, and the first movable handle and the second movable handle can slide left and right relative to the fixed handle; A cavity is formed in the first movable handle, and one end of the power plug is arranged in the cavity; The support tube assembly is formed by sleeving a driving rope, a smooth layer, a support tube and an insulating tube from inside to outside, and the smooth layer is arranged outside the driving rope and is used for reducing friction resistance generated when the driving rope slides on the inner wall of the smooth layer; The driving rope is used for controlling the opening and closing actions of the clamp head assembly, and a plurality of threads with unequal pitches are arranged on the outer wall of the supporting tube; The power plug is electrically connected with the clamp head assembly through the driving rope.
2. The medical device of claim 1, wherein the outer wall of the insulating tube is smooth.
3. The medical device of claim 1, wherein the diameter of the clamp head assembly and the support tube assembly is less than 1 millimeter.
4. The medical device according to claim 1, wherein a first tube section, a second tube section and a third tube section are provided in this order from the distal end to the proximal end on the outer wall of the support tube; the outer side of the first pipe section is provided with a plurality of first threads with a first thread pitch; The outer side of the second pipe section is provided with a plurality of second threads with a second thread pitch, wherein the first thread pitch is smaller than the second thread pitch; the outside of the third pipe section is not threaded.
5. The medical device according to claim 4, wherein, The total length of the support tube ranges from 0.1 meters to 4 meters; the length of the first pipe section ranges from 10cm to 50 cm, and the first pitch ranges from 2 mm to 4 mm; the second pipe section ranges from 150 cm to 300 cm, and the second pitch ranges from 3 mm to 6 mm; The first thread and the second thread have a minimum thread width of from 0.01 mm to 0.05 mm; The length of the third pipe section is from 5 cm to 15 cm.
6. The medical device of claim 4, wherein the first tube segment has a length of 40 centimeters and the first thread pitch is 3 millimeters; The outer side of the second pipe section is provided with a plurality of second threads with a second thread pitch, the length of the second pipe section is 241 cm, and the second thread pitch is 5 mm; The first thread and the second thread have a width of 0.02 mm; the outside of the third pipe section is not threaded.
7. The medical device of claim 4, wherein the first tube segment has a degree of bending in the range of greater than 0 ° and less than or equal to 180 ° of U-shape.
8. The medical device of claim 1, wherein the clamp head assembly comprises a first clamp head, a second clamp head, a clamp head frame, and a first securing pin; The tail part of the first binding clip is provided with a first arc-shaped groove matched with the first fixing pin, the tail part of the second binding clip is provided with a second arc-shaped groove matched with the first fixing pin, the first binding clip is provided with a first connecting hole, the second binding clip is provided with a second connecting hole, and the binding clip is provided with a shaft pin hole, wherein the first fixing pin sequentially penetrates through the shaft pin hole, the first connecting hole, the second connecting hole and the first through hole, so that the first binding clip and the second binding clip are slidably hinged with the binding clip frame and the driving rope around the axis of the first fixing pin.
9. The medical device according to claim 1, wherein the clamp head assembly comprises a third clamp head, a fourth clamp head, a second fixing pin, a third fixing pin, a fourth fixing pin, a first connecting rod, a second connecting rod and a clamp head frame, wherein a shaft pin hole is formed in the clamp head frame, a third connecting hole is formed in the third clamp head, a fourth connecting hole is formed in the fourth clamp head, a first through hole is formed in the distal end of the driving rope, and the second fixing pin sequentially penetrates through the shaft pin hole, the fourth connecting hole, the third connecting hole and the first through hole from top to bottom, so that the third clamp head and the fourth clamp head are slidably hinged with the clamp head frame and the driving rope around the second fixing pin axis.
10. The medical instrument according to claim 1, wherein the clamp head assembly comprises a fifth clamp head, a sixth clamp head, a first metal wire, a second metal wire, a fifth fixing pin and a clamp head frame, wherein a shaft pin hole is formed in the clamp head frame, a fifth connecting hole is formed in the fifth clamp head, a sixth connecting hole is formed in the sixth clamp head, and a first through hole is formed in the distal end of the driving rope, wherein the fifth fixing pin sequentially penetrates through the shaft pin hole, the sixth connecting hole, the fifth connecting hole and the first through hole from top to bottom, so that the fifth clamp head and the sixth clamp head are slidably hinged around a fifth fixing pin axis, and the driving rope is hinged with the clamp head frame; The tail parts of the fifth binding clip and the sixth binding clip are respectively provided with a second through hole and a third through hole, one end of the first metal wire is bent, one end of the second metal wire is bent, one end of the first metal wire with bending is connected with the second through Kong Chuancha at the tail part of the fifth binding clip, one end of the second metal wire with bending is connected with the third through hole at the tail part of the sixth binding clip in a penetrating way, and the other end of the first metal wire, the other end of the second metal wire and one end of the driving rope are fixedly connected.
11. The medical device of claim 8, wherein the first jaw is provided with a plurality of first engagement teeth, the plurality of first engagement teeth are sequentially arranged on two sides of the periphery of the receiving slot of the first jaw, the second jaw is provided with a plurality of second engagement teeth, the plurality of second engagement teeth are sequentially arranged on two sides of the periphery of the receiving slot of the second jaw, and the first engagement teeth are capable of being fully engaged with the second engagement teeth on the second jaw when the jaw assembly is in the closed state.
12. The medical device of claim 1, wherein the insulating tube is a heat shrink and encases the support tube.

Description

Medical instrument Technical Field The application relates to the technical field of medical instruments, in particular to a medical instrument. Background The biliary-pancreatic biopsy forceps are a medical instrument commonly used in endoscopic examination and treatment of biliary tract and pancreas systems, and are mainly used for clamping tissue samples from biliary tract or pancreas of patients. In the biliopancreatic surgery, a doctor usually uses a biliopancreatic biopsy forceps to clamp a tissue sample, and then needs to switch to use an electrocoagulator to cut and stop bleeding at the sampled tissue. However, doctors frequently alternate between the biliopancreatic biopsy forceps and the electrocoagulator throughout the procedure, which results in prolonged procedure duration and may increase patient pain and risk, which may affect the safety and effectiveness of the procedure. Disclosure of utility model The utility model provides a medical instrument for solving the problem that the related art needs to be frequently and alternately used between a biliary pancreas biopsy forceps and an electrocoagulator. According to an embodiment of the utility model, a medical instrument is provided, which comprises a clamp head assembly, a support tube assembly, a power plug and a handle assembly, wherein one end of the clamp head assembly is connected with the distal end of the support tube assembly, and the proximal end of the support tube assembly is connected with the handle assembly; The handle assembly comprises a first movable handle, a second movable handle and a fixed handle, wherein the first movable handle, the second movable handle and the fixed handle are connected in a sliding manner, and the first movable handle and the second movable handle can slide left and right relative to the fixed handle; A cavity is formed in the first movable handle, and one end of the power plug is arranged in the cavity; The support tube assembly is formed by sleeving a driving rope, a smooth layer, a support tube and an insulating tube from inside to outside, and the smooth layer is arranged outside the driving rope and is used for reducing friction resistance generated when the driving rope slides on the inner wall of the smooth layer; The driving rope is used for controlling the opening and closing actions of the clamp head assembly, and a plurality of threads with unequal pitches are arranged on the outer wall of the supporting tube; The power plug is electrically connected with the clamp head assembly through the driving rope. In one implementation, the outer wall of the insulating tube is smooth. In one implementation, the diameter of the clamp head assembly and the support tube assembly is less than 1 millimeter. In one implementation manner, a first pipe section, a second pipe section and a third pipe section are sequentially arranged on the outer wall of the support pipe from the distal end to the proximal end; the outer side of the first pipe section is provided with a plurality of first threads with a first thread pitch; The outer side of the second pipe section is provided with a plurality of second threads with a second thread pitch, wherein the first thread pitch is smaller than the second thread pitch; the outside of the third pipe section is not threaded. In one implementation of the method, in one implementation, The total length of the support tube ranges from 0.5 meters to 4 meters; the length of the first pipe section ranges from 10cm to 50 cm, and the first pitch ranges from 2 mm to 4 mm; the second pipe section ranges from 150 cm to 300 cm, and the second pitch ranges from 3 mm to 6 mm; the first thread and the second thread have a minimum thread width of 0.01 mm to 0.05 mm; The length of the third pipe section is from 5 cm to 15 cm. In one implementation, the first pipe section has a length of 40 cm and the first pitch is 3 mm; The outer side of the second pipe section is provided with a plurality of second threads with a second thread pitch, the length of the second pipe section is 241 cm, and the second thread pitch is 5 mm; The first thread and the second thread have a width of 0.02 mm; the outside of the third pipe section is not threaded. In one implementation, the bending degree of the first pipe section is greater than 0 ° and less than or equal to 180 ° of the U-shape. In one implementation, the clamp head assembly includes a first clamp head, a second clamp head, a clamp head frame, and a first securing pin; The tail part of the first binding clip is provided with a first arc-shaped groove matched with the first fixing pin, the tail part of the second binding clip is provided with a second arc-shaped groove matched with the first fixing pin, the first binding clip is provided with a first connecting hole, the second binding clip is provided with a second connecting hole, and the binding clip is provided with a shaft pin hole, wherein the first fixing pin sequentially penetrates through