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CN-121647802-B - Nerve monitoring electrocoagulation cutter matched with trachea cannula for use

CN121647802BCN 121647802 BCN121647802 BCN 121647802BCN-121647802-B

Abstract

The application discloses a nerve monitoring electric coagulation cutter matched with an trachea cannula for use, which comprises a shell, bipolar electric coagulation forceps, a nerve detection electrode arranged between two forceps arms of the bipolar electric coagulation forceps and a control device. The control device is used for driving the nerve detection electrode to move between the extending position and the retracting position. When the nerve detection electrode is in the extended position, the detection end of the nerve detection electrode extends to the front of the electrode tip, and the control device prevents the electrode tip from folding. The nerve detection and the electric coagulation function are integrated, and mechanical interlocking is realized by using the control device, wherein the electric coagulation forceps cannot be closed during detection, and the detection electrode is retracted during electric coagulation. The design mechanically ensures that two operations cannot be performed simultaneously, simplifies the operation flow and improves the safety of the operation.

Inventors

  • QIU HUI

Assignees

  • 湖南金柏威医疗科技有限公司
  • 武汉金柏威光电技术有限公司

Dates

Publication Date
20260512
Application Date
20260206

Claims (8)

  1. 1. A nerve monitoring electrocoagulation cutter for use with an endotracheal tube, comprising: A housing (1); The bipolar electric coagulation forceps (2), wherein the bipolar electric coagulation forceps (2) comprise two forceps arms (21) which extend from the shell (1) and can move relatively, an insulating layer (211) is arranged on the forceps arms (21), and electrode tips (212) are respectively arranged at the tail ends of the forceps arms (21); a nerve detection electrode (3) arranged between the two forceps arms (21) and electrically insulated from the forceps arms (21); The control device (4) is connected with the nerve detection electrode (3) and is used for driving the nerve detection electrode (3) to move between an extending position and a retracting position, the control device (4) comprises a moving block (41) fixedly connected with the nerve detection electrode (3) and a pulling block (42) used for operating the moving block (41), the control device (4) further comprises a limiting part (411), the limiting part (411) is arranged on the moving block (41), wherein when the nerve detection electrode (3) is in the extending position, a detection end (31) of the nerve detection electrode extends to the front of the two electrode tips (212), the limiting part (411) is arranged between the two forceps arms (21) so as to prevent the two electrode tips (212) from being folded, and when the nerve detection electrode (3) is in the retracting position, the detection end (31) of the nerve detection electrode is retracted behind the two electrode tips (212) and the two electrode tips (212) can clamp tissue.
  2. 2. The nerve monitoring electrocoagulation cutter for use with tracheal intubation of claim 1, wherein the nerve detection electrode (3) has a telescopic hole (32) at one end thereof remote from its detection end (31); The nerve monitoring electrocoagulation cutter matched with the tracheal intubation for use further comprises a central shaft (5), one end of the central shaft (5) is fixed to the shell (1), and the other end of the central shaft (5) is slidably inserted into the telescopic hole (32).
  3. 3. The nerve monitoring electrocoagulation cutter matched with the tracheal intubation of claim 2, wherein a first clamping hole (51) and a second clamping hole (52) are formed in the central shaft (5), a mounting groove (412) is formed in the moving block (41), an elastic clamping piece (43) is fixedly mounted in the mounting groove (412), the elastic clamping piece (43) is provided with an extensible or retractable clamping end, when the nerve detection electrode (3) is in the extensible position, the clamping end is clamped into the first clamping hole (51), and when the nerve detection electrode (3) is in the retractable position, the clamping end is clamped into the second clamping hole (52).
  4. 4. The nerve monitoring electrocoagulation cutter matched with the tracheal intubation of claim 3, wherein the elastic clamping piece (43) comprises a sliding block (431), a spring (432) and a clamping ball (433), the sliding block (431) is slidably arranged in the mounting groove (412), one end of the spring (432) is connected with the inner wall of the mounting groove (412), the other end of the spring (432) is connected with one end of the sliding block (431), the clamping ball (433) is fixed on the other end of the sliding block (431), when the nerve detection electrode (3) is in the extending position, the clamping ball (433) is clamped into the first clamping hole (51), and when the nerve detection electrode (3) is in the retracting position, the clamping ball (433) is clamped into the second clamping hole (52).
  5. 5. Nerve monitoring electro-coagulation cutter for use with tracheal intubation according to claim 1, characterized in that the housing (1) is provided with a wire bundle integrator (6) for gathering the circuit connections of the bipolar electro-coagulation forceps (2) and the nerve detection electrode (3) and for connection to an external high frequency electro-coagulation generator and a nerve monitoring system, respectively.
  6. 6. The nerve monitoring coagulation cutter of claim 5, further comprising a circuit control system configured to switch on the electrical circuit of the nerve detection electrode (3) and the nerve monitoring system and to switch off the electrical circuit of the bipolar coagulation forceps (2) and the high frequency coagulation generator when the nerve detection electrode (3) is in the extended position, and to switch off the electrical circuit of the nerve detection electrode (3) and the nerve monitoring system and to switch on the electrical circuit of the bipolar coagulation forceps (2) and the high frequency coagulation generator when the nerve detection electrode (3) is in the retracted position.
  7. 7. The nerve monitoring electro-coagulation cutter for use with an endotracheal tube according to claim 6, wherein said circuit control system includes a multi-way switch driven by said control means (4); When the control device (4) moves, the multi-way switch is driven to switch on and off states of the circuits of the nerve detection electrode (3) and the nerve monitoring system and the circuits of the bipolar coagulation forceps (2) and the high-frequency coagulation generator.
  8. 8. The nerve monitoring electrocoagulation cutter for use with tracheal intubation of claim 6 further comprising an active safety feedback module configured to, when the nerve detection electrode (3) is in the retracted position and the bipolar electrocoagulation forceps (2) is in electrical communication with the high frequency electrocoagulation generator: (a) Monitoring myoelectric feedback signals SEMG (t) from the nerve monitoring system in real time; (b) Processing the myoelectric feedback signal SEMG (t) to detect whether there is a neural stimulation response SResp in the SEMG (t) that is not expected to be induced by the high frequency current IHF (t) output by the high frequency electrocoagulation generator, wherein the neural stimulation response SResp is determined by calculating a time correlation between the myoelectric feedback signal SEMG (t) and a pulse envelope Env (IHF (t)) of the high frequency current IHF (t); (c) When the value of SResp exceeds a preset safety threshold SThresh, the active safety feedback module immediately sends a suppression instruction to the high-frequency electrocoagulation generator to interrupt the output of the high-frequency current IHF (t).

Description

Nerve monitoring electrocoagulation cutter matched with trachea cannula for use Technical Field The application relates to the field of medical appliances, in particular to a nerve monitoring electrocoagulation cutter matched with an endotracheal tube. Background As medical technology continues to develop, the use of electrocoagulation cutters as a core device for cutting tissue and for electrocoagulation hemostasis in surgical procedures is becoming increasingly widespread in all types of surgical procedures. Particularly in the fields of neurosurgery, otorhinolaryngology, thyroid surgery and other fine operations, the bipolar electric coagulation forceps are highly favored by doctors by virtue of the characteristics that high-frequency current only flows between two tips, the energy is highly concentrated and the thermal damage to surrounding tissues is small, so that important support is provided for the development of fine operations, and the bipolar electric coagulation forceps play a key role in ensuring the safety of the operations and improving the effect of the operations. In the existing operation, in order to avoid the damage to the key nerve bundles caused by the electrocoagulation operation, a nerve monitoring system is generally introduced clinically. The doctor needs to use an independent nerve monitoring probe to send out low-frequency stimulation pulses, and locate and judge the 'health condition' of the nerve in real time through myoelectric feedback. In specific operation, a doctor needs to frequently switch between a nerve monitoring probe and bipolar electric coagulation forceps, firstly uses the nerve monitoring probe for detection, determines a safe area and then switches to the bipolar electric coagulation forceps for operation. This procedure ensures the safety of the procedure to some extent, but also presents additional problems. However, there are significant drawbacks to this existing mode of operation. Because doctors need to frequently switch back and forth between the nerve monitoring probe and the bipolar coagulation forceps, the operation flow is complicated. In addition, at the moment of instrument switching, the tiny displacement of the hand or the pulsation of the operation field easily causes the operation point to deviate from the safety detection point confirmed before, thereby causing accidental injury of nerves and bringing serious consequences to patients. Disclosure of Invention In order to solve the technical problems in the prior art, the application provides a nerve monitoring electrocoagulation cutter matched with an endotracheal tube. The nerve monitoring electrocoagulation cutter matched with the tracheal intubation provided by the application adopts the following technical scheme: A nerve monitoring electrocoagulation cutter for use with an endotracheal tube, comprising: A housing; The bipolar electric coagulation forceps comprise two forceps arms which extend from the shell and can move relatively, an insulating layer is arranged on each forceps arm, and electrode tips are respectively arranged at the tail ends of the forceps arms; The nerve detection electrode is arranged between the two forceps arms and is electrically insulated from the forceps arms; the nerve detection electrode is connected with the control device and used for driving the nerve detection electrode to move between an extending position and a retracting position, wherein when the nerve detection electrode is in the extending position, the detection ends of the nerve detection electrode extend to the front of the two electrode tips, the control device prevents the two electrode tips from folding, and when the nerve detection electrode is in the retracting position, the detection ends of the nerve detection electrode retract behind the two electrode tips, and the two electrode tips can fold to clamp tissues. In some embodiments, the control device comprises a moving block fixedly connected with the nerve detection electrode, and a pulling block for operating the moving block. In some embodiments, the control device further comprises a stop disposed on the moving block, the stop being disposed between the two forceps arms to prevent the electrode tips from collapsing when the nerve detection electrode is in the extended position. In some embodiments, the nerve detection electrode has a telescopic hole at one end far from its detection end; The nerve monitoring electrocoagulation cutter matched with the tracheal intubation further comprises a central shaft, one end of the central shaft is fixed to the shell, and the other end of the central shaft is slidably inserted into the telescopic hole. In some embodiments, the central shaft is provided with a first clamping hole and a second clamping hole; The movable block is provided with a mounting groove, an elastic clamping piece is fixedly mounted in the mounting groove, the elastic clamping piece is provided with an extensible or retractable c