CN115778524A

CN115778524A - Bipolar closure system

Info

Publication number: CN115778524A
Application number: CN202211491959.0A
Authority: CN
Inventors: 蔡国庆; 康蓓; 陈斌; 肖国栋; 谢英杰
Original assignee: Wuxi Beien Surgery Device Co ltd
Current assignee: Wuxi Beien Surgery Device Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-14

Abstract

The invention discloses a bipolar closing system, and relates to the field of surgical equipment. The key point of the technical scheme is that the device comprises an electric drive device, wherein the electric drive device comprises a limiting block acting on a push broach mechanism; the limiting block is provided with: at the moment, the push broach mechanism enters a locking state, and a push broach trigger cannot be pressed to drive the push broach rod to move; and a release position, at which the push broach mechanism enters a release state and can press the push broach trigger to drive the push broach rod to move; the electric driving device receives a signal of the host to control the limiting block to move, so that the limiting block is switched between a locking position and a releasing position; after solidification and closing are successful, the host machine sends a release signal, and the electric drive device controls the limiting block to be switched from the locking position to the release position according to the release signal. In the invention, only after the clamping mechanism successfully coagulates and closes the tissue, the push broach trigger can be pressed to execute the cutting action, thereby reducing or even eliminating the risk of misoperation of the push broach trigger and improving the safety and reliability of the system.

Description

Bipolar closure system

Technical Field

The present invention relates to the field of surgical devices, and more particularly, it relates to a bipolar closure system.

Background

The bipolar vascular closure system is a high-frequency operation device widely applied to the field of surgical operations, and mainly comprises a bipolar vascular generator (hereinafter referred to as a host) and a bipolar vascular closure instrument. When the double-electrode blood vessel closing instrument works, the main machine outputs double-electrode high-frequency energy, and the double-electrode high-frequency energy acts on a human blood vessel through a jaw of the double-electrode blood vessel closing instrument to close the human blood vessel. After successful closing, the vascular tissue is cut off by pushing through a mechanical structure by means of a blade arranged in the bipolar closing instrument. Such as shown in U.S. patent publication No. US20140257284 A1.

At present, in order to reduce the heat injury to human blood vessels caused by the electrocautery effect when a bipolar closing instrument is used, the output power of a main machine is not very large, and the time of the main machine in a jaw closing state is relatively long on the premise of taking the blood vessel closing effect into consideration. During the period, the doctor needs to keep the hand-held instrument in a posture, the host machine can sense the electrical impedance of target tissues between the blades through the feedback control system, when the tissues are coagulated to the optimal degree, the system sends out a sound signal to prompt that the closure is successful, and the doctor pulls a cutting trigger on the bipolar closure instrument to cut blood vessels.

However, in a state where the blood vessel is not completely closed, a doctor may erroneously operate the cutting trigger to cut the blood vessel, thereby causing injury to the human body.

The prior Chinese patent with the publication number of CN106264713B discloses a high-frequency electrosurgical instrument, which comprises a clamping trigger, a push-type broach trigger and a safety device, wherein the safety device comprises a safety blocking piece and a safety blocking piece spring, and a groove matched with the safety blocking piece is arranged on the push-type broach trigger; the safety catch is respectively matched with the clamping trigger and the push broach trigger and is suitable for driving the safety catch to move through the movement of the clamping trigger so as to lock and/or release the push broach trigger.

However, the safety feature of the above-mentioned patent prevents the user from accidentally operating the push trigger until the clamp is fully closed. That is, after the clamping device is fully closed, the user may still mishandle the pusher trigger to cut the vessel during the closing of the vessel.

Therefore, how to make the vessel close successfully before the operator can cut the vessel is a problem to be solved urgently.

Disclosure of Invention

In view of the shortcomings of the prior art, the present invention provides a bipolar closing system, wherein the push-type broach trigger can be pressed to perform the cutting action only after the clamping mechanism successfully coagulates and closes the tissue, so as to reduce or even eliminate the risk of misoperation of the push-type broach trigger, and improve the safety and reliability of the system.

In order to realize the purpose, the invention provides the following technical scheme:

a bipolar closing system comprises a host and a handheld bipolar closing instrument, wherein the handheld bipolar closing instrument comprises a handheld shell, a clamping mechanism, a clamping trigger and a push broach mechanism, and the push broach mechanism comprises a push broach trigger, a broach seat and a broach rod;

the bipolar closure system further comprises an electric drive comprising a stop block acting on the push-broach mechanism;

the limiting block is provided with:

at the moment, the push broach mechanism enters a locking state, and a push broach trigger cannot be pressed to drive the push broach rod to move; and the number of the first and second groups,

the push broach mechanism enters a release state at the moment, and a push broach trigger can be pressed to drive the push broach rod to move;

the electric driving device receives a signal of the host to control the limiting block to move, so that the limiting block is switched between a locking position and a releasing position;

when the limiting block is in a locking position, the clamping trigger is pressed to close the clamping mechanism, and then the host machine transmits energy to the clamping mechanism to perform solidification closing; after the solidification and closing are successful, the host machine sends out a prompt signal and a release signal respectively, and the electric drive device controls the limiting block to be switched from the locking position to the release position according to the release signal.

Further, the limiting block acts on a push broach trigger or a push tool seat.

Furthermore, the limiting block acts on the push broach seat, and a limiting groove matched with the limiting block is formed in the outer wall of the push broach seat.

Further, the electric driving device is arranged above the tool pushing seat.

Further, the electric driving device controls the limiting block to move along a linear direction, or the electric driving device controls the limiting block to deflect around the shaft.

Further, handheld casing includes two half shells, electric drive with arbitrary through fastener connection or joint between the half shell, perhaps electric drive joint is between two half shells.

Further, electric drive device lateral wall symmetry is provided with two picture pegs, half shell inside wall be provided with picture peg complex fixed socket.

Further, the main machine sends a locking signal according to a position signal of the clamping trigger or the push-type broach mechanism, or the main machine sends a locking signal according to set duration, and the electric drive device controls the limiting block to be switched from the release position to the locking position according to the locking signal.

Furthermore, a trigger switch matched with the clamping trigger is arranged on the handheld shell and is connected with the host; after the clamping trigger is pressed to close the clamping mechanism, the clamping trigger is contacted with the trigger switch, and the host machine transmits energy to the clamping mechanism according to a contact signal of the trigger switch; after the clamping trigger is separated from the trigger switch, the host machine sends out a locking signal according to a separation signal of the trigger switch.

Further, the trigger switch is connected with a circuit board; a first electric signal line is arranged between the circuit board and the host, and a second electric signal line is arranged between the circuit board and the electric drive device.

In conclusion, the invention has the following beneficial effects:

1. only after the clamping mechanism successfully coagulates and closes the tissues, the push broach trigger can be pressed to execute the cutting action, so that the risk of misoperation of the push broach trigger can be reduced or even eliminated, and the safety and reliability of the system are improved;

2. the limiting block acts on the tool pushing seat, so that an electric driving device is conveniently arranged, and the locking reliability can be improved.

Drawings

FIG. 1 is a schematic structural diagram of a bipolar closure system in an embodiment;

FIG. 2 is a schematic view of the electric driving device and the push-type broach mechanism;

fig. 3 is a schematic structural diagram of the handheld housing in the embodiment.

In the figure: 1. a hand-held housing; 11. a fixed socket; 12. a lead plate; 2. a knife pushing seat; 21. a pin shaft; 22. a card slot; 23. a limiting groove; 3. a push broach trigger; 31. a pin hole; 4. pushing the cutter rod; 41. bending; 5. an electric drive device; 51. a limiting block; 52. a second electrical signal line; 53. inserting plates; 6. a circuit board; 61. a first electrical signal line; 62. a trigger switch; 7. a clamp mechanism; 8. clamping a trigger; 9. a host.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the present invention.

Example (b):

a bipolar closure system, referring to fig. 1 to 3, comprising a host 9 and a handheld bipolar closure device, wherein the handheld bipolar closure device comprises a handheld housing 1, a clamping mechanism 7, a clamping trigger 8 and a push-type broach mechanism, and the push-type broach mechanism comprises a push-type broach trigger 3, a push-type broach seat 2 and a push-type broach rod 4; the bipolar closure system further comprises an electric drive 5, the electric drive 5 comprising a stop block 51 acting on the push-broach mechanism; the stopper 51 has a locking position and a releasing position; when the limiting block 51 is in the locking position, the push broach mechanism enters a locking state, and the push broach trigger 3 cannot be pressed to drive the push broach rod 4 to move; when the limiting block 51 is at the release position, the push broach mechanism enters a release state, and the push broach trigger 3 can be pressed to drive the push broach rod 4 to move; the electric drive device 5 receives a signal of the host 9 to control the limit block 51 to move, so that the limit block 51 is switched between a locking position and a releasing position; when the limiting block 51 is in a locking position, the clamping trigger 8 is pressed to close the clamping mechanism 7, and then the main machine 9 transmits energy to the clamping mechanism 7 to perform solidification closing; after the solidification and closing are successful, the host machine 9 respectively sends out a prompt signal and a release signal, and the electric drive device 5 controls the limiting block 51 to be switched from the locking position to the release position according to the release signal; after receiving the prompt signal, the operator can press the push broach trigger 3 to execute the cutting action; that is, only after the clamping mechanism 7 successfully coagulates and closes the tissue, the push broach trigger 3 can be pressed to execute the cutting action, so that the risk of misoperation of the push broach trigger 3 can be reduced or even eliminated, and the safety and reliability of the system are improved.

Referring to fig. 1 to 3, for the push broach mechanism, a push broach trigger 3 is pressed to drive a push broach seat 2 to move, the push broach seat 2 drives a push broach rod 4 to move, and the push broach rod 4 drives a cutting knife to move so as to execute cutting action; specifically, in this embodiment, a through hole is formed in the middle of the push broach seat 2, a clamping groove 22 is formed in the inner side wall of the through hole, and a bending section 41 embedded in the clamping groove 22 is arranged at the end of the push broach rod 4, so that the push broach seat 2 can drive the push broach rod 4 to move; the middle part of the push broach trigger 3 is hinged to the handheld shell 1, the lower half area of the push broach trigger 3 forms a pressing part, the upper half area of the push broach trigger 3 is provided with a pin hole 31, and the outer side wall of the push broach seat 2 is provided with a pin shaft 21 embedded in the pin hole 31; pressing force acts on the pressing part of the push broach trigger 3 to drive the push broach trigger 3 to deflect around the hinge shaft, so that the inner wall of the pin hole 31 acts on the pin shaft 21 to drive the push broach seat 2 to move; preferably, the limit block 51 acts on the push trigger 3 or the push seat 2, and more preferably, the limit block 51 acts on the push seat 2 in this embodiment, so that the electric driving device 5 is conveniently arranged, and the reliability of locking can also be improved.

Referring to fig. 1 to 3, preferably, the outer wall of the broach seat 2 is provided with a limiting groove 23 matched with the limiting block 51; the arrangement of the limiting groove 23 can improve the locking reliability on one hand, save space on the other hand and facilitate the arrangement of the electric driving device 5; specifically, the limiting groove 23 is arranged on the end surface of the tool apron 2, so that the limiting groove 23 is provided with a side opening, and the limiting block 51 is conveniently embedded into the limiting groove 23; preferably, in the present embodiment, the electric driving device 5 is disposed above the knife pushing seat 2, so that the remaining space in the handheld housing 1 can be fully utilized, and the influence on the volume change of the handheld housing 1 after the electric driving device 5 is added is reduced; the handheld shell 1 comprises two half shells, the electric drive device 5 is connected or clamped with any half shell through a fastener, or the electric drive device 5 is clamped between the two half shells; in this embodiment, electric drive 5 joint is between two half shells, specifically, electric drive 5 lateral wall symmetry is provided with two picture pegs 53, and half shell inside wall is provided with picture peg 53 complex fixed socket 11 to convenient equipment.

Referring to fig. 1 to 3, the electric driving device 5 controls the stopper 51 to move in a linear direction, or the electric driving device 5 controls the stopper 51 to deflect around a shaft; specifically, electric drive device 5 controls stopper 51 and moves along the linear direction in this embodiment, inlays in spacing groove 23 when stopper 51 stretches out downwards, then breaks away from spacing groove 23 when stopper 51 upwards contracts.

Referring to fig. 1 to 3, the main machine 9 sends a locking signal according to a position signal of the clamping trigger 8 or the push-type broach mechanism, or the main machine 9 sends a locking signal according to a set time length, and the electric driving device 5 controls the limit block 51 to be switched from the release position to the locking position according to the locking signal; preferably, the host machine 9 sends out a locking signal according to a position signal of the clamping trigger 8 or the push broach mechanism, so that more application scenes can be matched, and more accurate locking time can be matched; specifically, a trigger switch 62 matched with the clamping trigger 8 is arranged on the handheld shell 1, and the trigger switch 62 is connected with the host 9; after the clamping trigger 8 is pressed to close the clamping mechanism 7, the clamping trigger 8 is contacted with the trigger switch 62, and the host machine 9 transmits energy to the clamping mechanism 7 according to a contact signal of the trigger switch 62; after the clamping trigger 8 is separated from the trigger switch 62, the host machine 9 sends out a locking signal according to the separation signal of the trigger switch 62; after the cutting action is finished, the push broach trigger 3 is released, and the clamping trigger 8 can be released only after the push broach trigger 3 is reset, so that the clamping trigger 8 is reset and separated from the trigger switch 62; in operation, the push broach trigger 3 is firstly loosened, and then the clamping trigger 8 is loosened; therefore, when the trigger switch 62 sends out the end signal, the push broach seat 2 is already reset, at this time, the host 9 sends out a locking signal to the electric drive device 5, and the electric drive device 5 controls the limit block 51 to extend downwards to be embedded into the limit groove 23, so that the push broach mechanism is locked; the trigger switch 62 belongs to the original device of the handheld bipolar closing instrument, the position signal of the clamping trigger 8 is fed back by utilizing the trigger switch 62, the structure and the control can be simplified, and an additional detection switch is not required to be added; specifically, the trigger switch 62 is connected to the circuit board 6, a first electrical signal line 61 is arranged between the circuit board 6 and the host 9, and a second electrical signal line 52 is arranged between the circuit board 6 and the electric drive device 5; connecting the second electrical signal line 52 of the electric drive 5 to the circuit board 6 enables an easy connection; of course, in other alternative embodiments, the second electrical signal line 52 may also be connected to the host 9, and is not limited herein; preferably, a plurality of lead plates 12 are disposed in the hand-held housing 1 to be matched with the second electrical signal lines 52, and grooves or holes are disposed on the lead plates 12 to facilitate the arrangement of the second electrical signal lines 52; in other alternative embodiments, if the host computer 9 is to send out the locking signal according to the position signal of the push-type broach mechanism, a contact switch cooperating with the push-type broach seat 2 may be provided in the handheld housing 1, and the contact switch is used to directly feed back the position signal of the push-type broach seat 2 to the host computer.

Claims

1. A bipolar closing system comprises a host and a handheld bipolar closing instrument, wherein the handheld bipolar closing instrument comprises a handheld shell, a clamping mechanism, a clamping trigger and a push broach mechanism, and the push broach mechanism comprises a push broach trigger, a broach seat and a broach rod; the method is characterized in that:

the limiting block is provided with:

the push broach mechanism enters a locking state at the moment, and a push broach trigger cannot be pressed to drive the push broach rod to move; and the number of the first and second groups,

2. The bipolar closure system of claim 1 wherein: the limiting block acts on a push broach trigger or a push broach seat.

3. The bipolar closure system of claim 2, wherein: the limiting block acts on the push broach seat, and a limiting groove matched with the limiting block is formed in the outer wall of the push broach seat.

4. The bipolar closure system of claim 3 wherein: the electric drive device is arranged above the tool pushing seat.

5. The bipolar closure system of claim 1, wherein: the electric drive device controls the limiting block to move along the linear direction, or the electric drive device controls the limiting block to deflect around the shaft.

6. The bipolar closure system of claim 1, wherein: the handheld casing includes two half shells, electric drive with arbitrary between the half shell through fastener connection or joint, perhaps electric drive joint is between two half shells.

7. The bipolar closure system of claim 6, wherein: the electric drive device lateral wall symmetry is provided with two picture pegs, half shell inside wall be provided with picture peg complex fixed socket.

8. The bipolar closure system of claim 1, wherein: the main machine sends a locking signal according to a position signal of the clamping trigger or the push broach mechanism, or the main machine sends a locking signal according to set duration, and the electric drive device controls the limiting block to be switched from the release position to the locking position according to the locking signal.

9. The bipolar closure system of claim 8, wherein: the handheld shell is provided with a trigger switch matched with the clamping trigger, and the trigger switch is connected with the host; after the clamping trigger is pressed to close the clamping mechanism, the clamping trigger is contacted with the trigger switch, and the host machine transmits energy to the clamping mechanism according to a contact signal of the trigger switch; after the clamping trigger is separated from the trigger switch, the host machine sends out a locking signal according to a separation signal of the trigger switch.

10. The bipolar closure system of claim 9, wherein: the trigger switch is connected with a circuit board; a first electric signal line is arranged between the circuit board and the host, and a second electric signal line is arranged between the circuit board and the electric drive device.