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CN-121987317-A - Push broach structure of bipolar coagulation forceps and bipolar coagulation forceps

CN121987317ACN 121987317 ACN121987317 ACN 121987317ACN-121987317-A

Abstract

The invention discloses a push broach structure of a bipolar coagulation forceps and the bipolar coagulation forceps, and belongs to the technical field of electrosurgical instruments. The push knife structure of the bipolar coagulation forceps is used for driving a cutting blade of a cutting mechanism and comprises a trigger, a connecting mechanism and a sliding block, wherein the trigger, the connecting mechanism and the sliding block are arranged on a support, the sliding block is slidably connected with the support and is used for being abutted against the end part of one end of a cutter bar of the cutting mechanism, the trigger is linked with the sliding block through the connecting mechanism, when the trigger moves relative to the support, the connecting mechanism drives the sliding block to slide relative to the support so as to push the end part of one end of the cutter bar of the cutting mechanism, and therefore the cutting blade at the other end of the cutter bar is driven to push the cutter bar stably along the first direction under the condition that the sliding block is not connected with the cutter bar, and the rod assembly with the cutter bar can be directly dismounted under the condition that the sliding block is not dismounted, so that the push knife is more convenient, and meanwhile, when the trigger moves relative to the support, the connecting mechanism drives the sliding block relative to the support so as to push the end part of the cutter bar at the other end of the cutter bar along the first direction, and reliable cutting of tissues can be realized.

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 push knife structure of the bipolar coagulation forceps is used for driving a cutting blade of a cutting mechanism and is characterized by comprising a trigger, a connecting mechanism and a sliding block, wherein the trigger, the connecting mechanism and the sliding block are arranged on a bracket, the sliding block is slidably connected with the bracket and is used for abutting against the end part of one end of a cutter bar of the cutting mechanism, and the trigger is linked with the sliding block through the connecting mechanism; The push knife structure is configured to drive the sliding block to slide relative to the bracket through the connecting mechanism when the trigger moves relative to the bracket so as to push the end part of one end of a cutter bar of the cutting mechanism, thereby driving a cutting blade positioned at the other end of the cutter bar to push along a first direction.
  2. 2. The push broach structure according to claim 1, wherein the trigger comprises an operation portion and a limit portion, the operation portion is arranged on the outside of the support in a protruding mode, the limit portion is arranged in the support at least partially, at least one rib is arranged on the limit portion, and a limit structure is arranged on the support at a position corresponding to the rib.
  3. 3. The push broach structure according to claim 2, wherein said connecting mechanism comprises a connecting rod, a connecting block is provided on a side of said operating portion facing said connecting mechanism, an end of said connecting block remote from said operating portion is hinged to a first end of said connecting rod by a second shaft, and a second end of said connecting rod is hinged to said slider.
  4. 4. A push broach structure according to claim 3, further comprising a first shaft and a trigger return member, said connecting block being hinged to said support by said first shaft, said trigger return member being disposed on said first shaft, and said trigger return member being engaged at both ends thereof with said connecting block and said support, respectively.
  5. 5. The structure of claim 4, wherein the trigger return member is a torsion spring, the connecting block is provided with a receiving groove, at least a portion of the torsion spring is received in the receiving groove, and a portion of the torsion spring not received in the receiving groove is engaged with the bracket.
  6. 6. The structure of claim 3, wherein the connecting rod comprises at least a first connecting rod and a second connecting rod, the first end of the first connecting rod and the first end of the second connecting rod are hinged with the connecting block through the second shaft at the same time, the second end of the first connecting rod and the second end of the second connecting rod are respectively hinged with two sides of the sliding block, and the first connecting rod and the second connecting rod are respectively positioned at two sides of the cutter rod when the cutter rod is pushed.
  7. 7. The push broach structure according to claim 6, wherein a first hinge part and a first limit key are arranged on one side of the sliding block, a second hinge part and a second limit key are arranged on the other side of the sliding block, the support comprises a first connecting plate and a second connecting plate, a first guide groove is formed in the first connecting plate along the first direction, a second guide groove is formed in the second connecting plate at a position corresponding to the first guide groove, the first connecting rod is connected with the first hinge part, the second connecting rod is connected with the second hinge part, the first limit key is matched with the first guide groove, and the second limit key is matched with the second guide groove.
  8. 8. A bipolar coagulation forceps comprising an actuator assembly, a rod assembly, a control assembly and a housing assembly, the control assembly comprising a push-broach structure, the rod assembly comprising a cutting mechanism, the push-broach structure being adapted to drive the cutting mechanism, characterized in that the push-broach structure is a push-broach structure as claimed in any one of claims 1 to 7.
  9. 9. The bipolar coagulation forceps of claim 8, wherein the rod assembly further comprises a clamp rod, the cutting mechanism comprises a cutter bar and a cutting blade, the cutting blade is connected to the tail end of the cutter bar, the clamp rod is sleeved on the cutter bar, at least a part of the cutter bar is exposed out of the clamp bar, and the push-out knife structure is in transmission fit with the part of the cutter bar exposed out of the clamp bar so as to push the cutting blade relative to the clamp bar to push in a first direction.
  10. 10. The bipolar coagulation forceps of claim 9, wherein the cutting mechanism further comprises a knife bar knob and a knife bar reset member, the knife bar knob is sleeved on the knife bar, the knife bar is detachably connected with the forceps bar through the knife bar knob, and the knife bar reset member is arranged between the knife bar knob and the knife bar and is used for resetting the knife bar relative to the knife bar knob.

Description

Push broach structure of bipolar coagulation forceps and bipolar coagulation forceps Technical Field The invention relates to the technical field of electrosurgical instruments, in particular to a push-broach structure of a bipolar coagulation forceps and the bipolar coagulation forceps. 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 field, different forceps heads may be needed for wounds or operation sites under different conditions, but the forceps heads of the existing bipolar electro-coagulation forceps cannot be replaced, so that a plurality of bipolar electro-coagulation forceps with different forceps heads are needed, and the bipolar electro-coagulation forceps are inconvenient to use. However, in the existing bipolar coagulation forceps, the cutter bar and the cutter bar driving assembly are usually connected together, and before the cutter bar is detached, the cutter bar driving assembly needs to be detached first, or the cutter bar driving assembly and the cutter bar are detached together, so that the rod assembly with the rod members such as the cutter bar is inconvenient to detach. Disclosure of Invention The invention aims to overcome the defect that in the prior art, a rod assembly with a rod piece such as a cutter rod is inconvenient to detach, and provides a push-broach structure of a bipolar electrocoagulation clamp and the bipolar electrocoagulation clamp. In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the invention relates to a push-type knife structure of a bipolar coagulation forceps, which is used for driving a cutting blade of a cutting mechanism and comprises a trigger, a connecting mechanism and a sliding block, wherein the trigger, the connecting mechanism and the sliding block are arranged on a bracket; The push knife structure is configured to drive the sliding block to slide relative to the bracket through the connecting mechanism when the trigger moves relative to the bracket so as to push the end part of one end of a cutter bar of the cutting mechanism, thereby driving a cutting blade positioned at the other end of the cutter bar to push along a first direction. As a further optimization, the trigger comprises an operation part and a limiting part, wherein the operation part is arranged outside the support in a protruding mode, the limiting part is at least partially arranged inside the support, at least one rib is arranged on the limiting part, and a limiting structure is arranged at the position, corresponding to the rib, on the support. As a further optimization, the connecting mechanism comprises a connecting rod, one side, facing the connecting mechanism, of the operating part is provided with a connecting block, one end, far away from the operating part, of the connecting block is hinged with the first end of the connecting rod through a second shaft, and the second end of the connecting rod is hinged with the sliding block. As a further optimization, the automatic trigger device further comprises a first shaft and a trigger reset piece, wherein the connecting block is hinged with the bracket through the first shaft, the trigger reset piece is arranged on the first shaft, and two ends of the trigger reset piece are respectively matched with the connecting block and the bracket. As further optimization, the trigger reset piece is a torsion spring, the connecting block is provided with a containing groove, at least part of the torsion spring is contained in the containing groove, and the part of the torsion spring which is not contained in the containing groove is matched with the bracket. As further optimization, the connecting rod at least comprises a first connecting rod and a second connecting rod, wherein the first end of the first connecting rod and the first end of the second connecting rod are hinged with the connecting block through the second shaft at the same time, the second end of the first connecting rod and the second end of the second connecting rod are respectively hinged with the two sides of the sliding block, and when the cutter bar is pushed, the first connecting rod and the second connecting rod are respectively positioned at the two sides of the cutter bar. The sliding block is further optimized in that a first hinge part and a first limit key are arranged on one side of the sliding block, a second hinge part and