CN111759452A

CN111759452A - Tissue ablation, cutting and fusion system

Info

Publication number: CN111759452A
Application number: CN201910263666.9A
Authority: CN
Inventors: 周星; 苏文宇; 徐华苹; 王玉娥; 罗丽飞
Original assignee: Guangzhou T K Medical Instrument Co ltd
Current assignee: Guangzhou T K Medical Instrument Co ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-10-13

Abstract

The invention relates to a tissue ablation, cutting and fusion system, which comprises a handle component, a shaft component, a working part, a circuit system, a power supply and a temperature control component. The temperature control assembly comprises a temperature acquisition system and a data transmission system. The temperature acquisition system can continuously acquire working temperature data, the acquired temperature data are transmitted to the controller through the data transmission system, the data processing system in the controller monitors the acquired temperature in real time, when the acquired temperature value exceeds a temperature value set by the controller, the controller performs power-off processing on a circuit, or adjusts current or voltage output by a power supply through the data processing system, and the like, so that the control effect of reducing the working temperature of the working part is achieved, and the accidental tissue damage or the accidental element damage caused by the fact that the electric heating device is in a high-temperature state for a long time is effectively avoided. The tissue ablation, cutting and fusion system of the present invention is safer during long lasting operation.

Description

Tissue ablation, cutting and fusion system

Technical Field

The present invention relates to an electrosurgical instrument, in particular a surgical instrument for tissue ablation, cutting and fusion for use in surgery.

Background

In surgical operation, tissue ablation, cutting and fusion are very important tissue treatment processes, and among the currently commonly used tissue ablation, cutting and fusion techniques, an electrically heated tissue ablation method is one of the important techniques, and the tissue ablation, cutting and fusion processes are realized by heating the tissue to modify proteins.

In the prior art tissue ablation, cutting and fusion system, when the circuit is switched on, the heating system starts to work and the working part starts to heat up. However, the working temperature of the tissue ablation, cutting and fusion system is required to be stabilized within a certain range according to clinical experience, when the temperature is too high, not only is the working part prone to causing accidental damage to the tissue, but also the heating system is prone to damage to the heating element due to a long-time high-temperature state due to continuous working of the heating system.

Accordingly, there is a need for improvements in prior art tissue ablation, cutting and fusion systems, and in particular for further improvements in temperature control thereof.

Disclosure of Invention

Due to the specially designed temperature control assembly, when the temperature is too high, the temperature acquisition system can timely transmit data to the controller through the temperature data transmission system, and the controller can timely control and adjust the temperature of the system through power-off, current and voltage adjustment and other means, so that the tissue accidental damage or the element accidental damage caused by the long-term high-temperature state of the electric heating device is avoided.

The tissue ablation, cutting and fusion system of the invention is characterized in that:

A. the tissue ablation, cutting and fusion system 900 comprises a handle assembly 100, a shaft assembly 200, a working portion 300, a circuit system 400, a power source 500 and a temperature control assembly 401;

B. the handle assembly 100 comprises a trigger assembly 11, a gear adjusting button 12, a shaft connecting mechanism 13 and a shell 14; the trigger assembly 11, the gear adjusting button 12 and the shaft connecting mechanism 13 are arranged on the shell 14;

C. the shaft assembly 200 comprises a shaft 21 and a connecting assembly 22;

D. the working part 300 comprises at least 2 working surfaces 31, and at least 1 working surface 31 is provided with an electric heating device 32;

E. the circuitry 400 includes circuitry 41, a controller 42, and electrical interface means 43; the circuitry 400 is connected to the power supply 500 via the electrical interface means 43;

F. the temperature control assembly 401 comprises a temperature acquisition system 40-1 and a data transmission system 40-2; the temperature data collected by the temperature collection system 40-1 can be transmitted to the controller 42 through the data transmission system 40-2;

G. the proximal end of the shaft assembly 200 is connected to the handle assembly 100 through the shaft connecting mechanism 13; the distal end of the shaft assembly 200 is connected to the working portion 300; the electric heating device 32 is connected to the power supply 500 via the circuit system 400.

Due to the design of the temperature control assembly 401, when the temperature collected by the temperature collection system 40-1 exceeds the set limit temperature value, the temperature can be timely transmitted to the controller 42 through the data transmission system 40-2, and the controller 42 can record, store and analyze the collected temperature data. When the collected temperature data exceeds the temperature value set by the controller 42, the data processing system 42-2 of the controller 42 may send an instruction to process the electric heating device 32, for example, to perform power-off processing on the line 41, or to adjust the current or voltage output by the power supply 500, so as to achieve the control effect of reducing the working temperature of the working part 300, and effectively avoid the accidental tissue damage or the accidental element damage caused by the long-term high-temperature state of the electric heating device 32.

The controller 42 comprises a trigger switch 42-1; movement of the trigger assembly 11 can turn the trigger development 42-1 on or off.

The tissue ablation, cutting and fusion system 900 can be switched on by only pulling the trigger assembly 11 to apply working pressure to the working part 300 to heat the electric heating device 32, and accidental injury or potential safety hazard caused by misoperation can be caused, so that the clinical use process is safer and more reliable.

The handle assembly 100 further comprises a securing mechanism 15; the trigger assembly 11 is fixedly mounted on the housing (14) by the fixing means 15. During assembly, the trigger assembly 11 can be embedded or fixed in the mounting groove of the fixing mechanism 5 and is assembled into a whole and then fixed on the shell 14, so that the assembly process is simpler and more convenient, and the fixation is more firm.

The trigger assembly 11 comprises a trigger 11-1, a rocker arm 11-2 and a sliding block 11-3; the trigger 11-1 is provided with a trigger rotating shaft 11-1-1 and a rocker arm driving shaft 11-1-2; the rocker arm 11-2 comprises a rocker arm fulcrum 11-2-1, a moving chute 11-2-2 and a push block clamping groove 11-2-3; the sliding block 11-3 comprises a motion push block 11-3-1, a sliding convex step 11-3-2 and a working boss 11-3-3; the trigger rotating shaft 11-1-1 is connected with the fixing mechanism 15 and fixed on the shell 14; one end of the rocker arm driving shaft 11-1-2 is connected to the trigger 11-1, and the other end of the rocker arm driving shaft is embedded in the motion chute 11-2-2; the rocker arm fulcrum 11-2-1 and the fixing mechanism 15 are connected together, and the rocker arm 11-2 is movably arranged in the shell 14; the moving push block 11-3-1 is embedded in the push block clamping groove 11-2-3, and the sliding convex step 11-3-2 is embedded in the positioning sliding groove 15-1 of the fixing mechanism 15 and connected with the fixing mechanism 15; pulling the trigger 11-1, wherein the trigger 11-1 rotates around the trigger rotating shaft 11-1-1 to drive the rocker arm driving shaft 11-1-2 to reciprocate along the motion chute 11-2-2, so as to push the rocker arm 11-2 to reciprocate around the rocker arm fulcrum 11-2-1; the reciprocating swing of the rocker arm 11-2 pushes the moving push block 11-3-1 embedded in the push block clamping groove 11-2-3 so as to drive the slide block to linearly move back and forth along the positioning sliding groove 15-1, so that the working surface 31 of the working part 300 is closed and opened.

The trigger 11-1 is provided with a trigger part 11-1-3; when the trigger 11-1 moves towards the grip 14-1 of the housing 14, the trigger part 11-1-3 touches the trigger switch 42-1, and the trigger switch 42-1 is turned on; when the trigger 11-1 moves away from the grip 14-1 of the housing 14, the trigger part 11-1-3 is disengaged from the trigger switch 42-1, and the trigger switch 42-1 is turned off.

The gear shift knob 12 is connected to the controller 42 via the line 41. Doctors can select different output powers through the gear adjusting button 12 according to the specific conditions of the operation process, and the clinical operation is more convenient.

The gear adjusting button 12 comprises a cutting gear 12-1 and a fusion gear 12-2; the cutting rail 12-1 and the fusion rail 12-2 are linked together by a lever mechanism 12-3 such that the cutting rail 12-1 and the fusion rail 12-2 cannot be depressed simultaneously. The cutting gear 12-1 and the fusion gear 12-2 can not be pressed down simultaneously, so that the phenomenon of misoperation can not occur in the clinical use process.

The handle assembly 100 also includes a reset mechanism 16. When the trigger 11-1 is released, the reset mechanism 16 can enable the trigger 11-1 to automatically reset through reset force, so that the safety, the convenience and the comfort in the use process are greatly improved. The reset mechanism 16 may be a torsion spring mechanism, or a spring mechanism, or an elastic body mechanism, etc., and those skilled in the art can design various reset mechanisms as required, and install 1 or more reset mechanisms 16 at different parts of the instrument as required without departing from the scope of the present application.

The handle assembly 100 also includes a force limiting mechanism 17. The force limiting mechanism 17 can limit the working pressure transmitted to the working part 300 through the trigger assembly 11, when the force limiting mechanism 17 is activated, the maximum working pressure applied to the working part 300 after an operator pulls the trigger 11-1 is constant, and the maximum working pressure can be limited below 100N in the processes of ablation, cutting and fusion of soft tissues. Of course, a person skilled in the art can set the limit value of the maximum working pressure defined by the force limiting mechanism 17 as desired without departing from the scope of protection of the present application. The force limiting mechanism 17 may be a spring force limiting mechanism, an elastic body force limiting mechanism, a pressure spring force limiting mechanism, or other various structures, and those skilled in the art may also design other various force limiting mechanisms without departing from the scope of the present application.

The trigger 11-1 moves towards the handle 14-1 of the housing 14 until the force limiting mechanism 17 acts, the trigger switch 42-1 can be started, and when the trigger switch 42-1 is turned on, the gear adjusting button 12 can be closed to turn on the circuit system 400, so that the tissue ablation, cutting and fusion system 900 performs tissue ablation, cutting or fusion under a set working pressure. The trigger switch 42-1 can be started only when the force limiting mechanism 17 acts, so that the working pressure applied to the tissue in the operation process of a doctor is ensured to be constant, the tissue ablation, cutting or fusion system can perform tissue ablation, cutting or fusion only under the set working pressure, the operation effect is more stable, accidental injury possibly caused by misoperation is effectively prevented, and clinical effect differences of blood vessel closure, tissue fusion, cutting and the like caused by different clamping forces used by different surgeons are more safe and effective.

The shaft assembly 200 also contains a knob 23; the knob 23 can drive the shaft 21 to perform a rotational movement.

The shaft rod 21 comprises an inner rod 21-1 and an outer rod 21-2; the working surface 31 is respectively connected with the far ends of the inner rod 21-1 and the outer rod 21-2; when the inner rod 21-1 moves proximally, the working surface 31 is closed; when the inner rod 21-1 moves towards the far end, the working surface 31 is opened; the knob 23 is rotated to drive the inner rod 21-1 and the outer rod 21-2 to rotate, so as to drive the working surface 31 to rotate.

In clinical use, the working surface 31 needs to be rotated to a proper position according to different parts of tissues to be treated, the knob 23 can drive the shaft 21 to move, and the working surface 31 is further driven to rotate to a proper direction and position.

The electrical interface means 43 is an elastic electrical interface means 431, the elastic electrical interface means 431 comprises an electrically conductive contact 43-1, an elastic electrically conductive mechanism 43-2 and an electrical interface 43-3; one end of the conductive joint 43-1 is connected with the electric heating device 32 through the line 41, and the other end is connected with the elastic conductive mechanism 43-2; the other end of the elastic conductive mechanism 43-2 is connected to the electrical interface 43-3, and the electrical interface 43-3 is connected to the power supply 500.

The conductive joint 43-1 comprises a rotor 43-1-1 and a stator 43-1-2; the rotor 43-1-1 can rotate; the distal end of the rotor 43-1-1 and the proximal end of the shaft 21 are connected together, and when the shaft 21 rotates, the rotor 43-1-1 can synchronously rotate; the proximal end of the stator 43-1-2 is connected to the distal end of the resilient conductive means 43-2.

Because the rotor 43-1-1 can rotate synchronously with the shaft 21, the line 41 connecting the rotor 43-1-1 and the shaft 21 also rotates synchronously, the conductive joint 43-1 and the line 41 at the rear end of the shaft 21 are kept synchronous, and the wire breakage or the loosening of welding points, which may be caused by the twisting of the line 41, can be avoided.

The elastic conductive mechanism 43-2 is a conductive mechanism that can be elastically deformed under an external force while maintaining a circuit in a smooth state. The elastic conductive mechanism 43-2 can be elastically deformed under the action of an external force, so that when the shaft 21 translates proximally, the shaft 21 applies pressure to the elastic conductive mechanism 43-2, the elastic conductive mechanism 43-2 is compressively deformed, when the shaft translates distally, the pressure applied to the elastic conductive mechanism 43-2 by the shaft 21 is gradually released, and under the action of an elastic restoring force, the connection state of the conductive joint 43-1 and the shaft 21 can be continuously maintained, and the stable power supply of the circuit system 400 can be maintained. In the movement period, the elastic conductive mechanism 43-2 generates elastic deformation to perform reciprocating action, so that the fatigue fracture or welding point loosening caused by the continuous expansion and contraction of the electric wire during the current electric wire connection is overcome. Not only keeps the good controllability of the instrument, but also improves the reliability of the circuit.

The power supply 500 is a battery 51, or a battery pack 52 or a host 53. The battery 51 or the battery pack 52 has small volume and light weight, is suitable for being carried outdoors, has low requirement on electricity environment, is safer in low-voltage power supply, and the host 53 can stably supply power for a long time, and is particularly suitable for large-scale operations with long operation time; the user can select different power supplies 500 according to different use environments and different use requirements.

The tissue ablation, cutting and fusion system 900 also includes a cue system 600. The prompt system 600 can prompt the operator about the use state of the apparatus as required, such as prompting different working states with different sounds, prompting the state of the power supply with different lights, prompting different working positions with different patterns, and the like.

The prompting system 600 is a voice prompting device 61, a light prompting device 62 or an image prompting device 63. The applicant only lists the above three prompting devices, and those skilled in the art can design different prompting system structures according to the needs without departing from the protection scope of the present application.

The tissue ablation, cutting and fusion system 900 further comprises a smoke evacuation system 700; the fume extraction system 700 includes a fume outlet 71, a fume extraction duct 72, and a fume inlet 73. The smoke outlet 71 of the smoke exhaust system 700 can be connected with a medical negative pressure source, smoke generated in the operation process is timely extracted out of the body, the operation visual field is clear, and the operation process is safer and more reliable.

The tissue ablation, cutting and fusion system 900 further comprises a water supply/drainage system 800; the water supply/drainage system 800 includes a water outlet 81, a water drainage pipe 82, and a water inlet 83. The drain pipe 82 of the water supply/drainage system 800 may be either a drain pipe or a supply pipe. In the operation process, a doctor can inject normal saline or other solvents into the operation position through the water supply/drainage system 800 according to the operation requirement, and can timely discharge blood or sewage at the operation position out of the body through the water supply/drainage system 800, so that the smooth operation of the operation process is ensured.

In clinical use, the power supply 500 is connected with the circuit system 400 through the electrical interface 43-3, the power switch is turned on, the trigger 11-1 is pulled to move towards the grip 14-1 to drive the inner rod 21-1 to move towards the proximal end, the working surface 31 is closed, the working part 300 clamps the tissue to be treated and continuously pulls the trigger 11-1 until the force limiting mechanism 17 acts, the trigger switch 42-1 is switched on, the cutting gear 12-1 or the fusion gear 12-2 of the gear adjusting button 12 is selected to be pressed according to the surgical condition, the gear adjusting button 12 is switched on the controller 42, at the moment, the circuit system 400 switches on the power supply 500 and the electric heating device 32, the electric heating device 32 starts to generate heat to melt the tissue, During the cutting or fusing process, the elastic conducting mechanism 43-2 elastically deforms under the thrust action of the inner rod 21, so as to maintain stable power supply of the circuit system 400. After the operation is finished, the trigger 11-1 is released, the trigger 11-1 is reset under the action of the reset mechanism 16, the trigger switch 42-1 is switched off, the electric heating device 32 stops working and does not generate heat any more, the inner rod 21-1 moves towards the far end, the working surface 32 is opened, and a tissue treatment process is completed. When the working surface 32 needs to be rotated, the knob 23 is only required to be rotated, the knob 23 drives the shaft 21 to rotate, and the working surface 32 connected to the shaft 21 rotates accordingly. During the rotation process, the rotor 43-1-1 can rotate synchronously with the shaft 21, so that the conductive joint 43-1 and the line 41 at the rear end of the shaft 21 are kept synchronous, and the wire breakage or the loosening of welding points or the joint heating caused by the twisting of the line 41 can be avoided. Thereby ensuring a stable power supply of the circuitry 400. Different tissue parts are sequentially selected, the trigger 11-1 is repeatedly pulled and loosened, the operation can be finished, and the operation in the operation process is very simple.

In the using process, the temperature acquisition system 40-1 continuously acquires working temperature data, and transmits the acquired temperature data to the controller 42 through the data transmission system 40-2, the data processing system 42-2 in the controller 42 monitors the acquired temperature in real time, and when the acquired temperature value exceeds the temperature value set by the controller 42, the controller 42 performs power-off processing on the line 41 or adjusts the current or voltage output by the power supply 500, so that the control effect of reducing the working temperature of the working part 300 is achieved, and the accidental tissue damage or the accidental element damage caused by the long-term high-temperature state of the electric heating device 32 is effectively avoided.

The tissue ablation, cutting and fusion system of the present invention comprises a handle assembly 100, a shaft assembly 200, a working portion 300, circuitry 400, a power source 500 and a temperature control assembly 401. The temperature control assembly 401 includes a temperature acquisition system 40-1 and a data transmission system 40-2. The temperature acquisition system 40-1 can continuously acquire working temperature data, and transmit the acquired temperature data to the controller 42 through the data transmission system 40-2, the data processing system 42-2 in the controller 42 monitors the acquired temperature in real time, when the acquired temperature value exceeds the temperature value set by the controller 42, the controller 42 performs power-off processing on the line 41, or adjusts the current or voltage output by the power supply 500 through the data processing system 42-2, and the like, so that the control effect of reducing the working temperature of the working part 300 is achieved, and the accidental tissue damage or the accidental damage of elements caused by the fact that the electric heating device 32 is in a high-temperature state for a long time is effectively avoided. The tissue ablation, cutting and fusion system of the present invention is safer during prolonged continuous operation.

Drawings

FIG. 1 is a perspective view of the working surface of the tissue ablation, cutting and fusion system of the present invention when open.

Fig. 1-1 is a schematic perspective view of the working surface of fig. 1 when closed.

Fig. 2 is a front view of fig. 1.

Fig. 2-1 is a sectional view a-a of fig. 2.

Fig. 2-2 is an enlarged view at B of fig. 2-1.

Fig. 3 is a front view of fig. 1-1.

Fig. 3-1 is a cross-sectional view C-C of fig. 3.

Fig. 3-2 is an enlarged view at D of fig. 3-1.

FIG. 4 is a schematic structural view of the trigger assembly of the tissue ablation, cutting and fusion system of the present invention.

FIG. 5 is a schematic view of the shaft assembly of the tissue ablation, cutting and fusion system of the present invention.

Fig. 5-1 is a cross-sectional view E-E of fig. 5.

FIG. 6 is a perspective view of a tissue ablation, cutting and fusion system of the present invention including a water delivery/drainage system.

Fig. 6-1 is an enlarged view at F of fig. 6.

FIG. 7 is a perspective view of a tissue ablation, cutting and fusion system of the present invention including a clamping jaw.

Fig. 7-1 is an enlarged view at G of fig. 7.

Fig. 8 is a perspective view of a tissue ablation, cutting and fusion system of the present invention with a battery and battery pack.

FIG. 9 is a perspective view of the tissue ablation, cutting and fusion system of the present invention with a host machine.

In the above figures:

100 is a handle assembly, 200 is a shaft assembly, 300 is a working part, 400 is a circuit system, 401 is a temperature control assembly, 500 is a power supply, 600 is a prompting system, 700 is a smoke evacuation system, 800 is a water supply/drainage system, and 900 is a tissue ablation, cutting and fusion system of the present invention.

On the handle assembly:

the device comprises a trigger assembly 11, a gear adjusting button 12, a shaft connecting mechanism 13, a shell 14, a fixing mechanism 15, a resetting mechanism 16 and a force limiting mechanism 17.

11-1 is a trigger, 11-2 is a rocker arm, and 11-3 is a sliding block; 11-1-1 is a trigger rotating shaft, 11-1-2 is a rocker driving shaft, 11-1-3 is a trigger part, 11-2-1 is a rocker fulcrum, 11-2-2 is a moving chute, 11-2-3 is a push block clamping groove, 11-3-1 is a moving push block, 11-3-2 is a sliding convex step, and 11-3-3 is a working boss.

12-1 is a cutting gear, 12-2 is a fusion gear, and 12-3 is a lever mechanism.

14-1 is a handle.

15-1 is a positioning chute.

And 17-1 is a spring force limiting mechanism.

On the shaft assembly:

21 is a shaft, 22 is a connecting component, and 23 is a knob.

21-1 is an inner rod, and 21-2 is an outer rod.

The working part is provided with:

31 is a working surface, 32 is an electric heating device, and 33 is a rotating shaft; 31-1 is a far end working surface, and 31-2 is a near end working surface; reference numeral 301 denotes a first working unit, and 302 denotes a second working unit.

On the circuit system:

41 is a wire, 42 is a controller, 43 is an electrical interface device, 44 is an insulating layer, and 431 is an elastic electrical interface device.

41-1 is a conductive core rod, 42-1 is a trigger switch, 42-2 is a data processing system, 43-1 is a conductive connector, 43-2 is an elastic conductive mechanism, and 43-3 is an electrical interface; 43-1-1 is rotor, 43-1-2 is stator; brushes 43-11.

On the temperature control assembly:

40-1 is a temperature acquisition system, and 40-2 is a data transmission system.

On the power supply:

51 is a battery, 52 is a battery pack, and 53 is a main unit.

On the prompt system:

numeral 61 denotes a sound indicator, numeral 62 denotes a light indicator, and numeral 63 denotes an image indicator.

On the system of discharging fume:

71 is a smoke outlet, 72 is a smoke exhaust pipe, and 73 is a smoke inlet.

On the water supply/drainage system:

81 is a water outlet, 82 is a water outlet pipe, and 83 is a water inlet.

Detailed Description

Example (b): the tissue ablation, cutting and fusion system of the present invention

Referring to fig. 1-6-1, the tissue ablation, cutting and fusion system 900 of the present embodiment includes a handle assembly 100, a shaft assembly 200, a working portion 300, a circuit system 400, a temperature control assembly 401, a power source 500, a reminder system 600, and a smoke evacuation system 700.

The handle assembly 100 comprises a trigger assembly 11, a gear adjusting button 12, a shaft connecting mechanism 13, a shell 14, a fixing mechanism 15, a resetting mechanism 16 and a force limiting mechanism 17. The trigger assembly 11 is fixedly arranged on the shell (14) through the fixing mechanism 15, and the gear adjusting button 12 and the shaft connecting mechanism 13 are arranged on the shell 14.

The shaft assembly 200 includes a shaft 21, a coupling assembly 22, and a knob 23.

The working part 300 comprises 2 working surfaces 31, and 1 working surface 31 is provided with an electric heating device 32.

The circuitry 400 includes circuitry 41, a controller 42, and an electrical interface device 43. The circuitry 400 is connected to the power supply 500 via the electrical interface means 43.

The temperature control assembly 401 comprises a temperature acquisition system 40-1 and a data transmission system 40-2; the temperature data collected by the temperature collection system 40-1 can be transmitted to the controller 42 via the data transmission system 40-2. The controller 42 may set a limit temperature value. The temperature acquisition system 40-1 can continuously acquire working temperature data, and transmit the acquired temperature data to the controller 42 through the data transmission system 40-2, the data processing system 42-2 in the controller 42 monitors the acquired temperature in real time, when the acquired temperature value exceeds the limit temperature value set by the controller 42, the controller 42 can adopt the mode of carrying out power-off processing on the line 41, or the mode of adjusting the current or the voltage output by the power supply 500 through the data processing system 42-2, and the like, so that the control effect of reducing the working temperature of the working part 300 is realized, and the accidental tissue damage or the accidental damage of elements caused by the fact that the electric heating device 32 is in a high-temperature state for a long time is effectively avoided.

In this embodiment, the controller 42 includes a trigger switch 42-1; movement of the trigger assembly 11 can turn the trigger development 42-1 on or off.

The proximal end of the shaft assembly 200 is connected to the handle assembly 100 through the shaft connecting mechanism 13; the distal end of the shaft assembly 200 is connected to the working portion 300; the electric heating device 32 is connected to the power supply 500 via the circuit system 400.

Referring to FIG. 3, the trigger assembly 11 includes a trigger 11-1, a rocker arm 11-2, and a slide 11-3; the trigger 11-1 is provided with a trigger rotating shaft 11-1-1 and a rocker arm driving shaft 11-1-2; the rocker arm 11-2 comprises a rocker arm fulcrum 11-2-1, a moving chute 11-2-2 and a push block clamping groove 11-2-3; the sliding block 11-3 comprises a motion push block 11-3-1, a sliding convex step 11-3-2 and a working boss 11-3-3; the trigger rotating shaft 11-1-1 is connected with the fixing mechanism 15 and fixed on the shell 14; one end of the rocker arm driving shaft 11-1-2 is connected to the trigger 11-1, and the other end of the rocker arm driving shaft is embedded in the motion chute 11-2-2; the rocker arm fulcrum 11-2-1 and the fixing mechanism 15 are connected together, and the rocker arm 11-2 is movably arranged in the shell 14; the moving push block 11-3-1 is embedded in the push block clamping groove 11-2-3, and the sliding convex step 11-3-2 is embedded in the positioning sliding groove 15-1 of the fixing mechanism 15 and connected with the fixing mechanism 15; pulling the trigger 11-1, wherein the trigger 11-1 rotates around the trigger rotating shaft 11-1-1 to drive the rocker arm driving shaft 11-1-2 to reciprocate along the motion chute 11-2-2, so as to push the rocker arm 11-2 to reciprocate around the rocker arm fulcrum 11-2-1; the reciprocating swing of the rocker arm 11-2 pushes the moving push block 11-3-1 embedded in the push block clamping groove 11-2-3 so as to drive the slide block to linearly move back and forth along the positioning sliding groove 15-1, so that the working surface 31 of the working part 300 is closed and opened.

In this embodiment, the gear adjusting button 12 includes a cutting gear 12-1 and a fusion gear 12-2; the cutting rail 12-1 and the fusion rail 12-2 are linked together by a lever mechanism 12-3 such that the cutting rail 12-1 and the fusion rail 12-2 cannot be depressed simultaneously. The cutting gear 12-1 and the fusion gear 12-2 can not be pressed down simultaneously, so that the phenomenon of misoperation can not occur in the clinical use process.

In this embodiment, handle assembly 100 includes a reset mechanism 16. In this embodiment, the return mechanism 16 is a combination of a torsion spring mechanism 16-1 and a spring mechanism 16-2. The torsion spring mechanism 16-1 is arranged at the trigger rotating shaft 11-1-1, the spring mechanism 16-2 is arranged at the near end of the positioning sliding groove 15-1 of the fixing mechanism 15, when the trigger 11-1 is pulled, the torsion spring mechanism 16-1 is compressed, the inner rod 21-1 moves towards the near end, the spring mechanism 16-2 is compressed and deformed, when the trigger 11-1 is loosened, the inner rod 21-1 moves towards the far end under the action of the torsion spring mechanism 16-1 and the spring mechanism 16-2, and the trigger 11-1 automatically resets.

Those skilled in the art may design various reducing mechanisms as desired, and install 1 or more reducing mechanisms 16 at different locations of the instrument as desired without departing from the scope of the present application.

In this embodiment, the handle assembly 100 includes a force limiting mechanism 17. The force limiting mechanism 17 can limit the working pressure transmitted to the working part 300 through the trigger assembly 11, when the force limiting mechanism 17 is activated, the maximum working pressure applied to the working part 300 after an operator pulls the trigger 11-1 is constant, and the maximum working pressure can be limited below 100N in the processes of ablation, cutting and fusion of soft tissues. Of course, a person skilled in the art can set the limit value of the maximum working pressure defined by the force limiting mechanism 17 as desired without departing from the scope of protection of the present application.

In this embodiment, the trigger 11-1 moves toward the grip 14-1 of the housing 14 until the force limiting mechanism 17 acts, the trigger switch 42-1 cannot be activated, and when the trigger switch 42-1 is turned on, the gear adjusting button 12 cannot be closed, and the circuit system 400 is turned on, so that the tissue ablation, cutting and fusion system 900 performs tissue ablation, cutting or fusion under a set working pressure. Because only when limit force mechanism 17 takes effect, can start trigger switch 42-1, consequently guaranteed that the operating pressure that the doctor operation in-process was applyed to the tissue is invariable to avoid the difference of the operation effect that different operating personnel caused because the operating pressure difference of applying to the tissue, operation in-process operation effect is more stable, effectively avoided simultaneously under the non-operating condition the potential safety hazard that continuous heating of electric heater unit 32 probably leads to, the use is safer, reliable. Of course, those skilled in the art can design the on state of the trigger switch 42-1 to be different according to the requirement without departing from the scope of the present application.

In this embodiment, the force limiting mechanism 17 is a spring force limiting mechanism 17-1, the spring force limiting mechanism 17-1 is disposed at a proximal end of a working boss 11-3-3 of the slider 11-3, when the inner rod 21-1 moves towards the proximal end, the working boss 11-3-3 presses the spring force limiting mechanism 17-1, and the spring force limiting mechanism 17-1 elastically deforms to limit the magnitude of the working pressure.

Those skilled in the art can also design various other types of force limiting mechanisms, such as an elastic body force limiting mechanism, a pressure spring force limiting mechanism, etc., without departing from the scope of the present application.

In clinical use, it is often necessary to rotate the working surface 31 to a proper position according to the location of the tissue to be treated, and therefore, in this embodiment, the shaft assembly 200 includes the knob 23, and the knob 23 can drive the shaft 21 to rotate.

The shaft rod 21 comprises an inner rod 21-1 and an outer rod 21-2; the working surface 31 is respectively connected with the far ends of the inner rod 21-1 and the outer rod 21-2; when the inner rod 21-1 moves proximally, the working surface 31 is closed; when the inner rod 21-1 is moved distally, the working surface 31 is opened. The knob 23 is rotated to drive the inner rod 21-1 and the outer rod 21-2 to rotate, so as to drive the working surface 31 to rotate.

In this embodiment, the electrical interface device 43 is an elastic electrical interface device 431, and the elastic electrical interface device 431 includes a conductive contact 43-1, an elastic conductive mechanism 43-2, and an electrical interface 43-3. One end of the conductive joint 43-1 is connected with the electric heating device 32 through the line 41, and the other end is connected with the elastic conductive mechanism 43-2; the other end of the elastic conductive mechanism 43-2 is connected to the electrical interface 43-3, and the electrical interface 43-3 is connected to the power supply 500.

Because the rotor 43-1-1 can rotate synchronously with the shaft 21, the line 41 connecting the rotor 43-1-1 and the shaft 21 also rotates synchronously, the conductive joint 43-1 and the line 41 at the rear end of the shaft 21 are kept synchronous, and wire breakage or loosening of welding points or joint heating possibly caused by twisting of the line 41 can be avoided.

The elastic conductive mechanism 43-2 is a conductive mechanism that can be elastically deformed under an external force while maintaining a circuit in a smooth state. The elastic conductive mechanism 43-2 can be elastically deformed under the action of an external force, so that when the shaft 21 translates proximally, the shaft 21 applies pressure to the elastic conductive mechanism 43-2, the elastic conductive mechanism 43-2 is compressively deformed, when the shaft translates distally, the pressure applied to the elastic conductive mechanism 43-2 by the shaft 21 is gradually released, and under the action of an elastic restoring force, the connection state of the conductive joint 43-1 and the shaft 21 can be continuously maintained, and the stable power supply of the circuit system 400 can be maintained. In the movement period, the elastic conductive mechanism 43-2 is elastically deformed to perform reciprocating action, so that the problem of fatigue fracture or welding point loosening or joint heating caused by continuous expansion and contraction of the electric wire in the conventional electric wire connection process is solved. Not only keeps the good controllability of the instrument, but also improves the reliability of the circuit.

In this embodiment, the elastic conductive mechanism 43-2 is a coil spring mechanism. The elastic conductive mechanism 43-2 may be a tower spring mechanism or a spring mechanism, which is not specifically mentioned herein. Those skilled in the art will also design the elastic conductive mechanism 43-2 to be an elastic structure such as an elastomer structure as required without departing from the scope of the present invention.

Referring to fig. 8 and 9, the power source 500 may be a battery 51, or a battery pack 52, or a host 53. The battery 51 or the battery pack 52 has small volume and light weight, is suitable for being carried outdoors, has low requirement on electricity environment, is safer in low-voltage power supply, and the host 53 can stably supply power for a long time, and is particularly suitable for large-scale operations with long operation time; the user can select different power supplies 500 according to different use environments and different use requirements.

In this embodiment, the specific circuit connection manner is as follows:

a positive electrode line: the positive electrode of the electric heating device 32 is connected with a circuit 41 arranged in the rod core of the inner rod 21-1, in order to enhance the strength of the inner rod 21-1 in the translation and clamping processes, the circuit 41 is arranged into a rigid conductive core rod 41-1, an insulating layer 44 is arranged between the conductive core rod 41-1 and the inner rod 21-1, one end of the conductive core rod 41-1 is connected with the positive electrode of the electric heating device 32, the other end of the conductive core rod is connected with the positive electrode of the rotor 43-1-1, the other end of the positive electrode of the rotor 43-1-1 is connected with the positive electrode of the stator 43-1-2 in a brush manner, the other end of the positive electrode of the stator 43-1-2 is connected with the positive electrode of the elastic conductive mechanism 43-2, and the other end of the positive electrode of the elastic conductive mechanism 43-2 is connected with the positive electrode of the electric interface 43-3, is connected to the positive pole of the power supply 500 via the electrical interface 43-3.

Negative electrode circuit: the negative electrode of the electric heating device 32 is connected to the distal end of the inner rod 21-1, which is electrically conductive, an insulating layer 44 is disposed between the inner rod 21-1 and the outer rod 21-2, the proximal end of the inner rod 21-1 is connected to the negative electrode of the rotor 43-1-1 through the line 41, the other end of the negative electrode of the rotor 43-1-1 is connected to the negative electrode of the stator 43-1-2 through a brush, the other end of the negative electrode of the stator 43-1-2 is connected to the negative electrode of the elastic conductive mechanism 43-2, and the other end of the negative electrode of the elastic conductive mechanism 43-2 is connected to the negative electrode of the electric interface 43-3 and to the negative electrode of the power supply 500 through the electric interface 43-3.

In this embodiment, the working current flows in through the positive electrode of the electrical interface 43-3, flows into the stator 43-1-2 through the positive electrode of the stator 43-1-2 after passing through the elastic conductive mechanism 42, flows into the rotor 43-1-1 through the positive electrode of the rotor 43-1-1 after flowing out through the stator 43-1-2, flows into the conductive core rod 41-1 from the proximal end of the conductive core rod 41-1 after flowing out from the rotor 43-1-1, flows into the electrical heating device 32 from the positive electrode of the electrical heating device 32 after flowing through the conductive core rod 41-1, drives the electrical heating device 32 to generate heat, and then flows into the distal end of the inner rod 21-1 after flowing out from the negative electrode of the electrical heating device 32, and flows out from the proximal end of the inner rod 21-1 after flowing through the inner rod 21-1, and enters the negative electrode of the rotor 43-1-1, flows out through the negative electrode of the rotor 43-1-1, enters the negative electrode of the stator 43-1-2, passes through the stator 43-1-2, enters the elastic conductive mechanism 43-2, flows through the elastic conductive mechanism 43-2, flows into the electrical interface 43-3 from the far end of the elastic conductive mechanism 43-2, and flows into the negative electrode of the power supply 500 through the electrical interface 43-3.

Referring to fig. 2-1 and 8, the tissue ablation, cutting and fusion system of the present embodiment includes a cue system 600. The prompt system 600 can prompt the operator about the use state of the apparatus as required, such as prompting different working states with different sounds, prompting the state of the power supply with different lights, prompting different working positions with different patterns, and the like.

In the present embodiment, the applicant shows three prompting devices, namely, an audio prompting device 61, a light prompting device 62, and an image prompting device 63 in the prompting system 600. It should be understood that various other prompting system configurations can be devised by those skilled in the art without departing from the scope of the present application.

In this embodiment, the tissue ablation, cutting and fusion system 900 includes a smoke evacuation system 700. The fume extraction system 700 includes a fume outlet 71, a fume extraction duct 72, and a fume inlet 73. The smoke outlet 71 of the smoke exhaust system 700 can be connected with a medical negative pressure source, smoke generated in the operation process is timely extracted out of the body, the operation visual field is clear, and the operation process is safer and more reliable.

Referring to fig. 6, the tissue ablation, cutting and fusion system of the present invention may also include a water delivery/drainage system 800. The water supply/drainage system 800 includes a water outlet 81, a water drainage pipe 82, and a water inlet 83. The drain pipe 82 of the water supply/drainage system 800 may be either a drain pipe or a supply pipe. In the operation process, a doctor can inject normal saline or other solvents into the operation position through the water supply/drainage system 800 according to the operation requirement, and can timely discharge blood or sewage at the operation position out of the body through the water supply/drainage system 800, so that the smooth operation of the operation process is ensured. Meanwhile, the water supply/drainage system 800 can also be used as the smoke exhaust system 700 to exhaust smoke generated in the operation process out of the body in time, so as to ensure the clear operation visual field.

Meanwhile, in the clinical use process, because the temperature acquisition system 40-1 can continuously acquire the working temperature data, and transmits the collected temperature data to the controller 42 through the data transmission system 40-2, the data processing system 42-2 in the controller 42 may monitor the collected temperature in real time, when the collected temperature value exceeds the temperature value set by the controller 42, the controller 42 performs power-off processing on the line 41, or the data processing system 42-2 adjusts the current or voltage output by the power supply 500, so as to achieve the control effect of reducing the working temperature of the working part 300, effectively avoid the accidental tissue damage or the accidental element damage caused by the long-term high-temperature state of the electric heating device 32, and ensure that the electric heating device is safer in the long-term continuous working process.

In addition, in the embodiment, since the controller 42 is provided with the trigger switch 42-1, when the trigger 11-1 moves towards the grip 14-1 of the housing 14 until the force limiting mechanism 17 acts, the trigger portion 11-1-3 does not touch the trigger switch 42-1, and the trigger switch 42-1 is turned on; when the trigger 11-1 moves away from the grip 14-1 of the housing 14, the trigger part 11-1-3 is disengaged from the trigger switch 42-1, and the trigger switch 42-1 is turned off. The trigger switch 42-1 can be started only when the force limiting mechanism 17 acts, so that the tissue ablation, cutting or fusion system can perform tissue ablation, cutting or fusion under a set working pressure, the operation effect is more stable, accidental injury possibly caused by misoperation is effectively prevented, and clinical effect differences of blood vessel closure, tissue fusion, cutting and the like caused by different clamping forces used by different surgeons are more safe and effective, namely the tissue ablation, cutting and fusion system can be started to perform tissue ablation, cutting and fusion only under a constant clamping force, and the difference of using effects caused by different forces of an operator is avoided.

In this embodiment, the closing of the working surfaces 31 is achieved by translating one of the working surfaces 31 towards the other working surface 31.

Referring to fig. 7, in practical application, the closing of the working surfaces 31 can be realized by rotating the working surfaces 31 around the rotating shaft 33 among 2 working surfaces 31. The working part 300 comprises a first working part 301 and a second working part 302; the near end of the first working part 301 is connected with the far end of the inner rod 21-1, the near end of the second working part 302 is connected with the far end of the outer rod 21-2, when the inner rod 21-1 moves towards the near end, the first working part 301 is driven to rotate around the rotating shaft 33, and the first working part 301 and the second working part 302 are closed. With the design of the working part, the working part 300 has small volume in a closed state, can enter the abdominal cavity through a small channel, and then is opened to carry out operation, and is particularly suitable for various endoscopic minimally invasive operations.

It should be noted that structures disclosed and illustrated herein may be replaced by other structures having the same effect, and the described embodiments of the invention are not the only structures for carrying out the invention. Although preferred embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that these embodiments are by way of example only and that numerous changes, modifications and substitutions may be made without departing from the invention by those skilled in the art, and it is intended that the scope of the invention be defined by the spirit and scope of the appended claims.

Claims

1. A tissue ablation, cutting and fusion system, comprising:

A. the tissue ablation, cutting and fusion system (900) comprises a handle assembly (100), a shaft assembly (200), a working portion (300), a circuit system (400), a power source (500) and a temperature control assembly (401);

B. the handle assembly (100) comprises a trigger assembly (11), a gear adjusting button (12), a shaft connecting mechanism (13) and a shell (14); the trigger assembly (11), the gear adjusting button (12) and the shaft connecting mechanism (13) are arranged on the shell (14);

C. the shaft assembly (200) comprises a shaft rod (21) and a connecting assembly (22);

D. the working part (300) comprises at least 2 working surfaces (31), and at least 1 working surface (31) is provided with an electric heating device (32);

E. the circuit system (400) comprises a circuit (41), a controller (42) and an electrical interface device (43); -said circuitry (400) is connected to said power supply (500) via said electrical interface means (43);

F. the temperature control assembly (401) comprises a temperature acquisition system (40-1) and a data transmission system (40-2); the temperature data collected by the temperature collection system (40-1) can be transmitted to the controller (42) through the data transmission system (40-2);

G. the proximal end of the shaft assembly (200) is connected with the handle assembly (100) through the shaft connecting mechanism (13); the distal end of the shaft assembly (200) is connected with the working part (300); the electric heating device (32) is connected to the power supply (500) via the circuit system (400).

2. The tissue ablation, cutting and fusion system of claim 1, wherein: the controller (42) comprises a trigger switch (42-1); movement of the trigger assembly (11) may switch the trigger development (42-1) on or off.

3. The tissue ablation, cutting and fusion system of claim 1, wherein: the handle assembly (100) further comprises a fixing mechanism (15); the trigger assembly (11) is fixedly mounted on the housing (14) through the fixing mechanism (15).

4. The tissue ablation, cutting and fusion system of claim 3, wherein: the trigger assembly (11) comprises a trigger (11-1), a rocker arm (11-2) and a sliding block (11-3); the trigger (11-1) is provided with a trigger rotating shaft (11-1-1) and a rocker arm driving shaft (11-1-2); the rocker arm (11-2) comprises a rocker arm fulcrum (11-2-1), a moving chute (11-2-2) and a push block clamping groove (11-2-3); the sliding block (11-3) comprises a moving push block (11-3-1), a sliding convex step (11-3-2) and a working boss (11-3-3); the trigger rotating shaft (11-1-1) is connected with the fixing mechanism (15) and fixed on the shell (14); one end of the rocker arm driving shaft (11-1-2) is connected to the trigger (11-1), and the other end of the rocker arm driving shaft is embedded in the moving chute (11-2-2); the rocker arm fulcrum (11-2-1) and the fixing mechanism (15) are connected together, and the rocker arm (11-2) is movably arranged in the shell (14); the moving push block (11-3-1) is embedded in the push block clamping groove (11-2-3), and the sliding convex step (11-3-2) is embedded in a positioning sliding groove (15-1) of the fixing mechanism (15) and connected with the fixing mechanism (15); pulling the trigger (11-1), wherein the trigger (11-1) rotates around the trigger rotating shaft (11-1-1) to drive the rocker driving shaft (11-1-2) to reciprocate along the moving chute (11-2-2), so that the rocker (11-2) is pushed to reciprocate around the rocker fulcrum (11-2-1); the reciprocating swing of the rocker arm (11-2) pushes a moving push block (11-3-1) embedded in the push block clamping groove (11-2-3) to drive the sliding block to linearly move back and forth along the positioning sliding groove (15-1), so that the working surface (31) of the working part (300) is closed and opened.

5. The tissue ablation, cutting and fusion system of claim 4, wherein: the trigger (11-1) is provided with a trigger part (11-1-3); when the trigger (11-1) moves towards the direction of the handle (14-1) of the shell (14), the trigger part (11-1-3) touches the trigger switch (42-1), and the trigger switch (42-1) is switched on; when the trigger (11-1) moves away from the grip (14-1) of the shell (14) in the direction, the trigger part (11-1-3) is separated from the trigger switch (42-1), and the trigger switch (42-1) is disconnected.

6. The tissue ablation, cutting and fusion system of claim 1, wherein: the gear adjusting button (12) is connected with the controller (42) through the line (41).

7. The tissue ablation, cutting and fusion system of claim 1, wherein: the gear adjusting button (12) comprises a cutting gear (12-1) and a fusion gear (12-2); the cutting rail (12-1) and the fusion rail (12-2) are linked together by a lever mechanism (12-3) such that the cutting rail (12-1) and the fusion rail (12-2) cannot be pressed simultaneously.

8. The tissue ablation, cutting and fusion system of claim 1, wherein: the handle assembly (100) also includes a reset mechanism (16).

9. The tissue ablation, cutting and fusion system of claim 1, wherein: the handle assembly (100) further comprises a force limiting mechanism (17).

10. The tissue ablation, cutting and fusion system of claim 9, wherein: the trigger (11-1) moves towards the handle (14-1) of the shell (14) until the force limiting mechanism (17) acts, the trigger switch (42-1) can be started, the gear adjusting button (12) can be closed under the on state of the trigger switch (42-1), the circuit system (400) is switched on, and the tissue ablation, cutting or fusion system (900) performs tissue ablation, cutting or fusion under the set working pressure.

11. The tissue ablation, cutting and fusion system of claim 1, wherein: the shaft assembly (200) further comprises a knob (23); the knob (23) can drive the shaft rod (21) to rotate.

12. The tissue ablation, cutting and fusion system of claim 11, wherein: the shaft lever (21) comprises an inner lever (21-1) and an outer lever (21-2); the working surface (31) is respectively connected with the far ends of the inner rod (21-1) and the outer rod (21-2); when the inner rod (21-1) moves towards the near end, the working surface (31) is closed; when the inner rod (21-1) moves towards the far end, the working surface (31) is opened; the knob (23) is rotated to drive the inner rod (21-1) and the outer rod (21-2) to rotate, and then the working surface (31) is driven to rotate.

13. The tissue ablation, cutting and fusion system of claim 1, wherein: the electrical interface device (43) is an elastic electrical interface device (431), the elastic electrical interface device (431) comprises an electrically conductive joint (43-1), an elastic electrically conductive mechanism (43-2) and an electrical interface (43-3); one end of the conductive joint (43-1) is connected with the electric heating device (32) through the circuit (41), and the other end of the conductive joint is connected with the elastic conductive mechanism (43-2); the other end of the elastic conductive mechanism (43-2) is connected with the electrical interface (43-3), and the electrical interface (43-3) is connected with the power supply (500).

14. The tissue ablation, cutting and fusion system of claim 12, wherein: the conductive joint (43-1) comprises a rotor (43-1-1) and a stator (43-1-2); the rotor (43-1-1) is rotatable; the distal end of the rotor (43-1-1) and the proximal end of the shaft (21) are connected together, and the rotor (43-1-1) can synchronously rotate when the shaft (21) rotates; the proximal end of the stator (43-1-2) is connected with the distal end of the elastic conductive mechanism (43-2).

15. The tissue ablation, cutting and fusion system of claim 13, wherein: the elastic conductive mechanism (43-2) is a conductive mechanism which can be elastically deformed under the action of external force under the condition of keeping the circuit unobstructed.

16. The tissue ablation, cutting and fusion system of claim 1, wherein: the power source (500) is a battery (51), or a battery pack (52), or a host (53).

17. The tissue ablation, cutting and fusion system of claim 1, wherein: the tissue ablation, cutting and fusion system (900) further includes a cue system (600).

18. The tissue ablation, cutting and fusion system of claim 17, wherein: the prompting system (600) is a voice prompting device (61), a light prompting device (62) or an image prompting device (63).

19. The tissue ablation, cutting and fusion system of claim 1, wherein: the tissue ablation, cutting and fusion system (900) further comprises a smoke evacuation system (700); the smoke exhaust system (700) comprises a smoke outlet (71), a smoke exhaust pipe (72) and a smoke inlet (73).

20. The tissue ablation, cutting and fusion system of claim 1, wherein: the tissue ablation, cutting and fusion system (900) further comprises a water supply/drainage system (800); the water supply/drainage system (800) comprises a water outlet (81), a water drainage pipe (82) and a water inlet (83).