阅读说明：本技术 一种用于组织消融、切割及融合系统的电源及组织消融、切割及融合系统 (Power supply for tissue ablation, cutting and fusion system and tissue ablation, cutting and fusion system ) 是由 周星 苏文宇 徐华苹 王玉娥 罗丽飞 于 2019-04-01 设计创作，主要内容包括：本发明之一种用于组织消融、切割及融合系统的电源,其输出的是高电平电压低于24V、频率低于500Hz的低频直流脉冲电压。根据需要消融,或者切割,或者融合的组织的导热系数的不同,电源输出的直流脉冲电压的占空比可以进行调整。本发明之组织消融、切割及融合系统含本发明之一种用于组织消融、切割及融合系统的电源。本发明之组织消融、切割及融合系统含手柄组件、轴组件、工作部、电路系统及电源。电源输出的直流脉冲电压,通过高电平与低电平的周期性交互变化,实现对电加热装置的周期性通电和断电,保持电加热装置通电加热,断电适度降温的状态的周期性变化,使得热量在持续向组织或器官深处传导的过程中,加热装置与组织或器官接触的部位的温度保持在一个稳定的范围内,不会持续升高,有效避免温度过高而导致的组织或器官的意外伤害,临床使用过程更加安全、可靠。(The invention relates to a power supply for a tissue ablation, cutting and fusion system, which outputs low-frequency direct-current pulse voltage with high-level voltage lower than 24V and frequency lower than 500 Hz. The duty ratio of the direct current pulse voltage output by the power supply can be adjusted according to different heat conductivity coefficients of tissues to be ablated, cut or fused. The tissue ablation, cutting and fusion system of the present invention comprises a power source for a tissue ablation, cutting and fusion system of the present invention. The tissue ablation, cutting and fusion system of the present invention comprises a handle assembly, a shaft assembly, a working portion, circuitry and a power source. The direct current pulse voltage of power output, through the periodic interactive change of high level and low level, realize the periodic circular telegram and the outage to electric heater unit, keep electric heater unit ohmic heating, the periodic change of the state of outage moderate degree cooling, make the heat in the in-process of continuing to the deep conduction of tissue or organ, the temperature of heating device and tissue or organ contact's position keeps in a stable within range, can not continuously rise, effectively avoid the temperature too high and the unexpected injury of the tissue or the organ that leads to, clinical use process is safer, reliable.)

1. A power supply for a tissue ablation, cutting and fusion system, comprising: the power supply (500) is a low voltage power supply with an output voltage less than 24V.

2. A power supply for a tissue ablation, cutting and fusion system according to claim 1, wherein: the output voltage of the power supply (500) is less than 12V.

3. A power supply for a tissue ablation, cutting and fusion system according to claim 1, wherein: the power supply (500) is a direct current pulse power supply (501).

4. A power supply for a tissue ablation, cutting and fusion system according to claim 3, wherein: the frequency of the direct current pulse voltage output by the direct current pulse power supply (501) is less than 500 Hz.

5. A power supply for a tissue ablation, cutting and fusion system according to claim 4, wherein: the frequency range of the direct current pulse voltage output by the direct current pulse power supply (501) is 3 Hz-200 Hz.

6. A power supply for a tissue ablation, cutting and fusion system according to claim 3, wherein: the duty ratio of the direct current pulse voltage output by the direct current pulse power supply (501) can be adjusted.

7. A power supply for a tissue ablation, cutting and fusion system according to claim 6, wherein: the duty ratio of the direct current pulse voltage output by the direct current pulse power supply (501) is adjusted according to the difference of the thermal conductivity of the tissue or organ (9) to be ablated, cut or fused.

8. A power supply for a tissue ablation, cutting and fusion system according to claim 1, wherein: the output current of the power supply (500) is less than 10A.

9. A power supply for a tissue ablation, cutting and fusion system according to claim 1, wherein: the power supply (500) is a battery module (51), or a battery pack module (52) or a host (53).

10. Tissue ablation, cutting and fusion system, its characterized in that: the tissue ablation, cutting and fusion system (900) including the power supply (500) of claim 1.

11. The tissue ablation, cutting and fusion system of claim 10, wherein:

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), and a power source (500);

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 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).

12. The tissue ablation, cutting and fusion system of claim 11, 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.

13. The tissue ablation, cutting and fusion system of claim 11, 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).

14. The tissue ablation, cutting and fusion system of claim 13, 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.

15. The tissue ablation, cutting and fusion system of claim 12, 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.

16. The tissue ablation, cutting and fusion system of claim 11, wherein: the gear adjusting button (12) is connected with the controller (42) through the line (41).

17. The tissue ablation, cutting and fusion system of claim 11, 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.

18. The tissue ablation, cutting and fusion system of claim 11, wherein: the handle assembly (100) also includes a reset mechanism (16).

19. The tissue ablation, cutting and fusion system of claim 11, wherein: the handle assembly (100) further comprises a force limiting mechanism (17).

20. The tissue ablation, cutting and fusion system of claim 19, 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.

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

22. The tissue ablation, cutting and fusion system of claim 21, 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.

23. The tissue ablation, cutting and fusion system of claim 11, 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).

24. The tissue ablation, cutting and fusion system of claim 23, 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).

25. The tissue ablation, cutting and fusion system of claim 23, 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.

26. The tissue ablation, cutting and fusion system of claim 11, wherein: the tissue ablation, cutting and fusion system (900) further comprises a temperature control assembly (401); 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).

27. The tissue ablation, cutting and fusion system of claim 11, wherein: the tissue ablation, cutting and fusion system (900) further includes a cue system (600).

28. The tissue ablation, cutting and fusion system of claim 27, wherein: the prompting system (600) is a voice prompting device (61), a light prompting device (62) or an image prompting device (63).

29. The tissue ablation, cutting and fusion system of claim 11, 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).

30. The tissue ablation, cutting and fusion system of claim 11, 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).

Technical Field

The invention relates to a power supply for an electrosurgical instrument and the electrosurgical instrument, in particular to a surgical instrument used for tissue ablation, cutting and fusion in surgery and a power supply thereof.

Background

In surgical operation, tissue ablation, cutting and fusion are very important tissue treatment processes, and in currently common tissue ablation, cutting and fusion technologies, a high-frequency electric knife, a radio-frequency ablation method and an electric heating tissue ablation method are all important methods, and particularly the electric heating tissue ablation method is an important method, and the tissue is heated to modify proteins, so that the tissue ablation, cutting and fusion processes are realized.

Disclosure of Invention

The tissue ablation, cutting and fusion system is particularly designed with a low-voltage direct current pulse voltage system, the power supply system outputs safe direct current pulse voltage lower than 24V, the continuous heating mode in the prior art can be converted into an intermittent pulse heating mode by adjusting the frequency and duty ratio of the direct current pulse voltage output by the power supply system, the requirement of different tissues on heat conduction time difference caused by different heat conductivities can be met by controlling the time proportion of power-on and power-off, the temperature of a contact part can be kept in a safe temperature range all the time by the intermittent heating mode while the heat emitted by a heating element is continuously conducted to the deep layer of the tissue, and the tissue accidental injury caused by overhigh temperature of the contact part possibly caused by the existing continuous heating mode can be effectively avoided, the clinical use process is safer and more reliable.

The invention relates to a power supply for a tissue ablation, cutting and fusion system, which is characterized in that: the power supply 500 is a low voltage power supply with an output voltage less than 24V. The output voltage of the power supply 500 is a safe voltage less than 24V, so that accidental phenomena such as electric leakage and the like can not cause accidental injury to human bodies in the using process.

Preferably, the output voltage of the power supply 500 is less than 12V.

The power supply 500 is a dc pulsed power supply 501. The direct current pulse voltage output by the power supply 500 realizes the periodic power-on and power-off of the electric heating device 32 through the periodic interaction change of the high level and the low level, keeps the periodic change of the state of the electric heating device 32 in the power-on heating state and the power-off moderate cooling state, so that the temperature of the part of the heating device, which is in contact with the tissue or the organ 9, is kept in a stable range and cannot be continuously increased in the process of continuously conducting heat to the deep part of the tissue or the organ 9, the accidental injury of the tissue or the organ 9 caused by the overhigh temperature is effectively avoided, and the clinical use process is safer and more reliable.

The frequency of the dc pulse voltage output by the dc pulse power supply 501 is less than 500 Hz. The dc pulse power supply 501 generally outputs a low frequency dc pulse voltage having a frequency of less than 500Hz, depending on the thermal conductivity of the tissue and organ. On one hand, the low-frequency pulse can enlarge the range selection of the duration time of high level and low level, ensure that the heat conduction time is sufficient and simultaneously give enough cooling time to the heating device 32, so as to ensure that the temperature of the heating device 32 can be controlled within a safe temperature range. Meanwhile, the low-frequency pulse can better avoid the electromagnetic interference possibly caused by the electromagnetic pulse to peripheral equipment in the operation process of the instrument, and the electromagnetic compatibility of the instrument is better.

Further, the frequency range of the dc pulse voltage output by the dc pulse power supply 501 is 3Hz to 200 Hz.

The duty ratio of the dc pulse voltage output by the dc pulse power supply 501 is adjustable.

The duty ratio of the dc pulse voltage output by the dc pulse power supply 501 is adjusted according to the difference of the thermal conductivity of the tissue or organ 9 to be ablated, cut or fused.

The heating device 32 needs to output different power according to different thermal conductivity coefficients of tissues to be ablated, cut or fused, so that the duty ratio of the dc pulse voltage output by the dc pulse power supply 501 is different, that is, the heating time and the power-off time of the heating device 32 need to be adjusted according to different operation objects. The duty ratio of the direct current pulse voltage output by the power supply of the tissue ablation, cutting and fusion system can be adjusted, and the heat conduction requirements of different tissues or organs 9 can be met.

The output current of the power supply 500 is less than 10A.

The power supply 500 is a battery module 51, a battery pack module 52 or a host 53. The battery module 51 or the battery pack module 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, 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 of the present invention includes the power source 500.

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 and a power supply 500;

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 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.

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 can be switched on the trigger switch 42-1 only by pulling the trigger assembly 11 to apply working pressure to the working part 300 to heat the electric heating device 32, accidental injury or potential safety hazard possibly caused by misoperation can be caused, and 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 to the housing 14 by the securing mechanism 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 pushing 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 moving chute 11-2-2; the rocker fulcrum 11-2-1 and the fixing mechanism 15 are connected together, and the rocker 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 portion 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 file 12-1 and the fusion file 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 design other various force limiting mechanisms without departing from the scope of the present application.

The trigger 11-1 moves towards the grip 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 connector 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.

Since 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 weld loosening 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 tissue ablation, cutting and fusion system 900 further comprises a temperature control assembly 401; 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 temperature collecting system 40-1 can continuously collect the working temperature data and transmit 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 can monitor the collected temperature in real time, when the collected temperature value exceeds the limit 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.

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, a 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 turned 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 conditions, the gear adjusting button 12 is turned on to the controller 42, at the moment, the circuit system 400 turns on the power supply 500 and the electrical heating device 32, the electrical heating device 32 starts to generate heat, and in the process, the elastic conductive mechanism 43-2 elastically deforms under the thrust action of the inner rod 21, and the stable power supply of the circuit system 400 is maintained. At this time, the power supply 500 outputs a dc pulse voltage to the electric heating device 32 to periodically energize and deenergize the electric heating device 32, the electric heating device 32 is energized to heat, and the state of moderate temperature decrease is periodically changed after deenergizing, and when energized, the electric heating device 32 heats up, and heat is conducted to the deep part of the tissue or organ 9 through the body tissue, and after a high level is continued for a certain period of time, the power supply 500 is switched to a low level state, the electric heating device 32 is deenergized to stop heating, and at this time, the heat remaining in the electric heating device 32 continues to be conducted through the body tissue, the temperature of the electric heating device 32 is moderately decreased, and then the power supply 50 is switched to a high level state again, and the electric heating device 32 heats up again. The periodic changes of temperature rise and moderate temperature fall can keep the temperature of the part of the electric heating device 32, which is in contact with the tissue or organ 9, in a stable range in the process of ensuring that heat is continuously conducted to the deep part of the tissue or organ 9, and the temperature cannot be continuously raised, so that the accidental injury of the tissue or organ 9 caused by overhigh temperature is effectively avoided, and the safe and stable process of carrying out the processes of ablation, cutting or fusion on the tissue is ensured.

After the ablation, cutting or fusion process 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 continuously generate heat, 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, the rotor 43-1-1 can rotate synchronously with the shaft 21, so that the conductive connector 43-1 and the circuit 41 at the rear end of the shaft 21 are kept synchronous, and the wire breakage or the loosening of welding points or the heating of the connector, which may be caused by the twisting of the circuit 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 released, the operation can be finished, and the operation in the operation process is very simple.

Meanwhile, in the clinical use process, because 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 can monitor the acquired temperature in real time, when the acquired temperature value exceeds the temperature value set by the controller 42, the controller 42 adopts the modes of performing power-off processing on the line 41 or adjusting the current or voltage output by the power supply 500 through the data processing system 42-2, and the like, so as to achieve the control effect of reducing the working temperature of the working part 300, and effectively avoid tissue accidental injury or accidental damage of elements possibly caused by the electric heating device 32 being in a high-temperature state for a long time, the operation process is safer for a long time.

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 and a power source 500. The power supply 500 outputs low-frequency direct-current pulse voltage with high-level voltage lower than 24V and frequency lower than 500 Hz. The duty cycle of the dc pulse voltage output by the power supply 500 can be adjusted according to the different thermal conductivity of the tissue to be ablated, cut or fused. The direct current pulse voltage output by the power supply 500 realizes the periodic power-on and power-off of the electric heating device 32 through the periodic interaction change of the high level and the low level, keeps the periodic change of the states of the electric heating device 32 of power-on heating and moderate temperature reduction of power-off, so that the temperature of the contact part of the heating device and the tissue or organ 9 is kept in a stable range and cannot be continuously increased in the process of continuously conducting heat to the deep part of the tissue or organ 9, the accidental injury of the tissue or organ 9 caused by overhigh temperature is effectively avoided, and the clinical use process is safer and more reliable.

Drawings

FIG. 1 is a schematic perspective view of a battery-type power supply for a tissue ablation, cutting and fusion system of the present invention.

Fig. 2 is a schematic perspective view of a battery-type power supply for a tissue ablation, cutting and fusion system of the present invention.

Fig. 3 is a perspective view of a power supply for a tissue ablation, cutting and fusion system in accordance with the present invention.

FIG. 4 is a perspective view of the working surface of the tissue ablation, cutting and fusion system of the present invention shown open.

Fig. 4-1 is a schematic perspective view of the working surface of fig. 4 when closed.

Fig. 5 is a front view of fig. 1.

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

Fig. 5-2 is an enlarged view at B of fig. 5-1.

Fig. 6 is a front view of fig. 4-1.

Fig. 6-1 is a cross-sectional view C-C of fig. 6.

Fig. 6-2 is an enlarged view at D of fig. 6-1.

FIG. 7 is a schematic structural view of the trigger assembly of the tissue ablation, cutting and fusion system of the present invention.

FIG. 8 is a schematic view of the shaft assembly of the tissue ablation, cutting and fusion system of the present invention.

Fig. 8-1 is a cross-sectional view D-D of fig. 8.

FIG. 9 is a perspective view of a tissue ablation, cutting and fusion system of the present invention including a water delivery/drainage system.

Fig. 9-1 is an enlarged view at E of fig. 9.

FIG. 10 is a perspective view of a tissue ablation, cutting and fusion system of the present invention including a clamping jaw.

Fig. 10-1 is an enlarged view at F of fig. 10.

Fig. 11 is a perspective view of a tissue ablation, cutting and fusion system of the present invention with a battery and battery pack.

FIG. 12 is a perspective view of the tissue ablation, cutting and fusion system of the present invention with a host machine.

FIG. 13 is a schematic structural view of the operative state of the tissue ablation, cutting and fusion system of the present invention.

Fig. 13-1 is an enlarged view at G of fig. 15.

Fig. 14 is a waveform diagram of a dc pulse voltage with a high duty ratio.

Fig. 14-1 is a waveform diagram of a dc pulse voltage of low duty ratio.

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, 501 is a direct current pulse power supply, 600 is a prompt system, 700 is a smoke exhaust system, 800 is a water supply/drainage system, 900 is a tissue ablation, cutting and fusion system of the invention, and 9 is a tissue or organ.

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:

the numeral 51 denotes a battery module, numeral 52 denotes a battery pack module, and numeral 53 denotes 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