CN-121987323-A - Integrated rod clamp structure with detachable cutting blade and high-frequency surgical instrument

Abstract

The invention discloses an integrated rod clamp structure with a detachable cutting blade and a high-frequency surgical instrument, and belongs to the technical field of electrosurgical surgical instruments. The integrated rod clamp structure comprises an actuator component, wherein the actuator component is arranged at the far end of the rod component, the rod component comprises a cutting mechanism, a clamp rod and an outer rod which are sequentially sleeved from inside to outside, the cutting mechanism comprises a cutter bar and a cutting blade arranged at the far end of the cutter bar, at least one clamp head of the two clamp heads is provided with a cutter slot at the inner side of the cutter bar, the near end of the cutter bar is provided with a mounting structure, the cutter bar can slide on the mounting structure, the near end of the clamp rod is provided with a mounting part with a mounting hole, and the cutter bar is detachably connected with the mounting part through the mounting structure. According to the integrated rod clamp structure, the cutting blade can be quickly and rapidly removed, so that the rod assembly is cleaned, disinfected and sterilized, or the cutting blade is replaced, and the reliability and safety of the multiplexing of high-frequency surgical instruments are improved.

Inventors

• YUAN QIAN
• FU JIAN
• WANG ZUBAO

Assignees

• 南京首量医疗器材有限责任公司

Dates

Publication Date

20260508

Application Date

20241101

Claims (10)

1. 1. The integrated rod clamp structure with the detachable cutting blades is characterized by comprising a rod assembly and an actuator assembly, wherein the actuator assembly is arranged at the distal end of the rod assembly, the actuator assembly comprises two clamp heads, at least one clamp head of the two clamp heads can move relative to the other clamp head, the rod assembly comprises a cutting mechanism, a clamp rod and an outer rod which are sleeved in sequence from inside to outside, at least one clamp head of the two clamp heads is arranged at the distal end of the outer rod, the distal end of the clamp rod is in transmission connection with at least one clamp head of the two clamp heads, the cutting mechanism comprises a cutter bar and the cutting blades arranged at the distal end of the cutter bar, at least one clamp head of the two clamp heads is provided with a cutter slot at the inner side of the cutter bar, the proximal end of the cutter bar is provided with a mounting structure, the cutter bar can slide on the mounting structure, and the proximal end of the clamp rod is provided with a mounting part with a mounting hole and the cutter bar is detachably connected with the mounting part through the mounting structure; The integrated rod clamp structure is configured such that after the distal end of the cutting mechanism is inserted into the clamp bar through the mounting hole, the mounting structure cooperates with the mounting portion to connect the cutting mechanism to the clamp bar, and the proximal end of the knife bar is exposed at the proximal end of the clamp bar, and the proximal end of the knife bar can be pushed relative to the clamp bar to drive the cutting blade to be pushed along the knife slot.
2. 2. The detachable integrated pole clamp structure of a cutting blade according to claim 1, wherein the mounting structure comprises a pole knob with a pole base, one end of the pole base is provided with a mounting protrusion, the other end of the pole base is provided with an operation part, the mounting protrusion is matched with the mounting part, the operation part is a plurality of protruding edges arranged around the periphery of the pole, the pole base is of a hollow structure, and the pole is slidably inserted into the pole base.
3. 3. The integrated rod clamp structure with detachable cutting blades according to claim 2, wherein a knife bar driving part matched with a push knife mechanism of the bipolar coagulation clamp is arranged at the proximal end of the knife bar, a knife bar reset piece is sleeved on the knife bar, one end of the knife bar reset piece is matched with the knife bar knob, and the other end of the knife bar reset piece is matched with the knife bar driving part.
4. 4. The detachable integrated pole and pliers structure of claim 3, wherein the driving surface of the pole driving part is provided with a driving surface far away from the pole knob, and the driving surface is provided with a positioning groove or a positioning convex point.
5. 5. The detachable integrated pole clamp structure of a cutting blade according to claim 3, wherein the outer diameter of one end of the pole bar driving part, which is close to the pole bar knob, is larger than the outer diameter of the pole bar, the outer diameter of one end of the pole bar knob, which is close to the pole bar driving part, is larger than the outer diameter of the pole bar, the pole bar resetting piece is a pressure spring, one end of the pressure spring is matched with one end of the pole bar driving part, which is close to the pole bar knob, and the other end of the pressure spring is matched with one end of the pole bar knob, which is close to the pole bar driving part.
6. 6. The detachable integrated pole and pliers structure of claim 1, further comprising a blade guide member attached to the distal end of the pliers leg, one end of the blade guide member being in driving engagement with at least one of the pliers heads, the other end of the blade guide member being provided with a guide slot for guiding the blade into the knife slot.
7. 7. The detachable integrated pole and pliers structure of cutting blade according to claim 6, wherein the blade guide member is provided with a blade through groove along an axial direction thereof, the guide groove is communicated with the blade through groove, and the size of the guide groove increases from the communication position of the guide groove and the blade through groove to the outside one by one, and at least one guide inclined surface is formed.
8. 8. The detachable integrated rod clamp structure of a cutting blade according to claim 6, wherein the two clamp heads are a first clamp head and a second clamp head, the first clamp head is fixedly connected to the distal end of the outer rod, the second clamp head is rotatably connected to the first clamp head through a connecting pin, a driving groove is formed in the second clamp head, and a driving pin is arranged on the blade guide member and inserted into the driving groove and in transmission fit with the driving groove.
9. 9. The detachable integrated pole and pliers structure of claim 8, wherein the second pliers head comprises at least one connecting lug, the driving slot is formed in the connecting lug, the blade guide piece is provided with a containing slot for containing at least part of the connecting lug, and the driving pin is located in the containing slot.
10. 10. A high-frequency surgical instrument is characterized by comprising a shell component, a driving component and the integrated rod clamp structure according to any one of claims 1-9, wherein the driving component is arranged in the shell component and comprises a bracket, a cutter bar driving mechanism and a clamp bar driving structure, wherein the cutter bar driving mechanism and the clamp bar driving structure are arranged on the bracket, the proximal end of the rod component is positioned in the shell component and at least partially inserted into the bracket, the cutter bar driving mechanism is in transmission connection with the proximal end of a cutter bar of the integrated rod clamp structure, and the clamp bar driving mechanism is in transmission connection with the proximal end of a clamp bar of the integrated rod clamp structure.

Description

Integrated rod clamp structure with detachable cutting blade and high-frequency surgical instrument Technical Field The invention relates to the technical field of electrosurgical surgical instruments, in particular to an integrated rod clamp structure with a detachable cutting blade and a high-frequency surgical instrument. Background The bipolar electric coagulation forceps are a common hemostatic tool at present, the front section of the bipolar electric coagulation forceps is provided with two forceps heads, the forceps heads are respectively connected with a power supply, when the bipolar electric coagulation forceps are used, the two forceps heads are operated to be in contact with a wound, local high temperature is generated at the wound under the action of high-frequency current, bleeding tissues are heated to solidify proteins, and the inner cavity of a blood vessel is reduced or blocked, so that the hemostatic effect is achieved. In the related art, bipolar electric coagulation forceps are typically disposable medical devices. With the development of equipment for cleaning, disinfecting and sterilizing medical instruments and related processes, the bipolar electric coagulation forceps can reach corresponding multiplexing standards after cleaning, disinfecting and sterilizing. After the bipolar coagulation forceps are used, the forceps heads, the forceps rods and the cutting blades are easy to remain dirt such as blood, tissues and the like, and the difficulties of cleaning, disinfecting and sterilizing are great. In addition, the currently adopted cutting blade is usually designed for one-time use, if the cutting blade is reused for multiple times, damage can occur to affect cutting performance, but the service life of parts such as the clamp head, the clamp rod and the like is obviously longer than that of the cutting blade, and if the clamp head, the clamp rod and the like are replaced together after the cutting blade is damaged, the use cost is greatly increased. Disclosure of Invention The invention aims to overcome the defect that a cutting blade of a bipolar coagulation forceps is not easy to replace in the prior art, and provides an integrated rod forceps structure with a detachable cutting blade and a high-frequency surgical instrument. The invention provides an integrated rod clamp structure with a detachable cutting blade, which comprises a rod assembly and an actuator assembly, wherein the actuator assembly is arranged at the distal end of the rod assembly, the actuator assembly comprises two clamp heads, at least one clamp head of the two clamp heads can move relative to the other clamp head, the rod assembly comprises a cutting mechanism, a clamp rod and an outer rod which are sleeved in sequence from inside to outside, at least one clamp head of the two clamp heads is arranged at the distal end of the outer rod, the distal end of the clamp rod is in transmission connection with at least one clamp head of the two clamp heads, the cutting mechanism comprises a cutter bar and the cutting blade arranged at the distal end of the cutter bar, at least one clamp head of the two clamp heads is provided with a cutter groove at the inner side of the cutter bar, the proximal end of the cutter bar is provided with a mounting structure, the cutter bar can slide on the mounting structure, the proximal end of the clamp rod is provided with a mounting part with a mounting hole, and the cutter bar is detachably connected with the mounting part through the mounting structure; The integrated rod clamp structure is configured such that after the distal end of the cutting mechanism is inserted into the clamp bar through the mounting hole, the mounting structure cooperates with the mounting portion to connect the cutting mechanism to the clamp bar, and the proximal end of the knife bar is exposed at the proximal end of the clamp bar, and the proximal end of the knife bar can be pushed relative to the clamp bar to drive the cutting blade to be pushed along the knife slot. Further, the mounting structure comprises a cutter bar knob with a cutter bar base, one end of the cutter bar base is provided with a mounting protrusion, the other end of the cutter bar base is provided with an operation part, the mounting protrusion is matched with the mounting part, the operation part is a plurality of protruding ribs arranged around the peripheral surface of the cutter bar, the cutter bar base is of a hollow structure, and the cutter bar is slidably inserted into the cutter bar base. Further, a cutter bar driving part matched with a push-type cutter mechanism of the bipolar coagulation forceps is arranged at the proximal end of the cutter bar, a cutter bar resetting piece is sleeved on the cutter bar, one end of the cutter bar resetting piece is matched with the cutter bar knob, and the other end of the cutter bar resetting piece is matched with the cutter bar driving part. Further, the cutter bar driving part is provi