CN213075893U

CN213075893U - Tissue ablation, cutting and fusion system

Info

Publication number: CN213075893U
Application number: CN201922336602.5U
Authority: CN
Inventors: 周星; 苏文宇; 徐华苹; 王玉娥
Original assignee: Guangzhou T K Medical Instrument Co ltd
Current assignee: Guangzhou T K Medical Instrument Co ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2021-04-30
Anticipated expiration: 2029-12-21

Abstract

The tissue ablation, cutting and fusion system of the utility model comprises a handle component, a shaft component, a working part, a circuit system and a power supply. The handle assembly comprises a source handle and a passive handle; the active handle and the passive handle are connected together by a shaft assembly. The active handle comprises a gear adjusting mechanism, a circuit plugging mechanism and a shell. The gear adjusting mechanism is arranged on the shell; the circuit plugging mechanism can realize the separation and connection of the circuit system at the far end and the near end of the active handle. The far end of the active handle and the passive handle are connected by a shaft component to form a whole, thereby forming the detachable working end of the tissue ablation, cutting and fusion system. Because can dismantle the work end and only contain electric heater unit and circuit, do not contain electronic components such as electric capacity, electronic components such as controller and electrical interface device all set up the near-end, consequently, the sterilization process is safer, and the manufacturing cost who can dismantle the work end moreover is lower.

Description

Tissue ablation, cutting and fusion system

Technical Field

The utility model relates to an electrosurgical instrument, in particular to an electrosurgical instrument used for tissue ablation, cutting and fusion in surgical operations.

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 tissue ablation, cutting and fusion system in the prior art, a heating system and corresponding electronic and circuit systems need to be designed on the working part because the working part needs to be heated. Since the working portion is a member that is in direct contact with human tissue, aseptic processing is required.

Ethylene oxide sterilization is the most widely used sterilization method with the best effect at present, but if the sterilized product contains electronic components such as capacitors and the like, accidents such as explosion and the like easily occur in the ethylene oxide sterilization process.

For the operation risk that reduces sterilization process, reduce the disposable use cost of product simultaneously, the utility model discloses structure and the circuit system to current tissue ablation, cutting and fusion system improve, concentrate the electronic components such as electric capacity and set up the rear end at the handle, but carry out the split design with the front end and the rear end of handle simultaneously, only need disinfect to the handle front end of electronic components such as no electric capacity, reach the safe risk that reduces sterilization process and reduce product use cost's purpose.

Disclosure of Invention

The utility model discloses a tissue melts, cutting and fuses system owing to carry out the design of split with active handle, with several kinds of settings of electronic components such as electric capacity at the near-end of active handle, when needing the sterilization, pull down the distal end of active handle and can disinfect, because the distal end of active handle only has the heater, does not contain electronic components such as electric capacity, and the sterilization process is safer, in addition in the clinical use, only need to change the distal end of active handle can, reduce clinical use cost.

The utility model relates to a tissue melts, cuts and fuses system, its 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 source 500;

B. the handle assembly 100 comprises an active handle 11 and a passive handle 12; the active handle 11 and the passive handle 12 are connected together by the shaft assembly 200;

C. the active handle 11 comprises a gear adjusting mechanism 11-1, a circuit plugging mechanism 11-2 and a shell 11-3; the gear adjusting mechanism 11-1 is arranged on the shell 11-3; the circuit plugging mechanism 11-2 enables the detachment and connection of the circuit system 400 at the distal end 111 and the proximal end 112 of the active handle 11;

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; the electric heating device 32 is connected with the power supply 500 through the circuit system 400; the opening and closing movement of the active handle 11 and the passive handle 12 can realize the opening and closing of the working surface 31;

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.

The distal end 111 and the proximal end 112 of the active handle 11 are detachable in two parts, and the distal end 111 and the proximal end 112 are detachable and connectable by the circuit plugging mechanism 11-2. The active handle 11 with the distal end of passive handle 12 with the work portion 300 is connected, the distal end 111 of active handle 11 with the passive handle 12 passes through the axle subassembly 200 is connected and is constituted a whole, forms the utility model discloses a tissue ablation, cutting and fusion system's can dismantle work end 901. During sterilization, only the detachable working end 901 needs to be sterilized. Since the detachable working end 901 only comprises the electric heating device 32 and the circuit 41, and does not comprise electronic components such as capacitors, etc., and the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, the sterilization process is safer, and the manufacturing cost of the detachable working end 901 is lower.

When the detachable working end 901 is connected to the proximal end 112 of the active handle 11 for clinical use, the detachable working end 901 can be detached for replacement when replacement is needed, and the clinical use cost can be effectively reduced

The circuit plugging mechanism 11-2 comprises a male connector seat 11-21 and a female connector seat 11-22, the male connector seat 11-21 and the female connector seat 11-22 are respectively arranged on the near end 112 and the far end 111, and the male connector seat 11-21 and the female connector seat 11-22 can realize the connection and the disconnection of the circuit 41 in the active handle 11.

The male connector seat 11-21 and the female connector seat 11-22 are matched with each other, and when the male connector seat 11-21 is connected and detached, the male connector seat 11-21 is only required to be inserted into the female connector seat 11-22 or pulled out of the female connector seat 11-22, so that the use is very convenient.

The housing 11-3 includes a distal housing 11-31 and a proximal housing 11-32. The distal housing 11-31 is disposed outside the distal end 111 of the active handle 11, the proximal housing 11-32 is disposed outside the proximal end of the active handle 11, and the distal housing 11-31 and the proximal housing 11-32 are mated to each other to form the complete housing 11-3 when joined together. Because the circuit systems 400 of the distal end 111 and the proximal end 112 of the active handle 11 are respectively installed in the distal housings 11 to 31 and the proximal housings 11 to 32, the distal housings 11 to 31 and the proximal housings 11 to 32 only need to be connected and disconnected during connection and disconnection, and the clinical use process is more convenient.

The far-end shell 11-31 and the near-end shell 11-32 are connected together in a male-female snap fit mode, an interference fit mode or a rotary connection mode. In practical applications, a person skilled in the art may also design different connection modes according to needs, and the applicant does not exemplify here, but does not depart from the scope of protection of the present application.

Further, the far-end shell 11-31 and the near-end shell 11-32 are connected together in a male-female snap fit manner; the far-end shell 11-31 is provided with a mounting chute 11-31-1 and a positioning groove 11-31-2, and the near-end shell 11-32 is provided with a slide block 11-32-1 and a positioning convex step 11-32-2; the sliding block 11-32-1 is embedded in the installation sliding groove 11-31-1 and can move back and forth along the installation sliding groove 11-31-1, and when the positioning groove 11-31-2 is embedded in the positioning convex step 11-32-2, the far-end shell 11-31 and the near-end shell 11-32 are fixedly connected.

And a locking switch 11-33 is also arranged on the shell 11-3. When the locking switches 11 to 33 are pressed, the distal housings 11 to 31 and the proximal housings 11 to 32 can be separated, so that accidental mistaken detachment of the active handle 11 in the using process is effectively prevented, and the clinical use is safer.

The tissue ablation, cutting and fusion system 900 also includes 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.

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 active handle 11 further comprises a circuit fixing mechanism 11-5, and the circuit system 400 is fixedly mounted on the housing 11-3 through the circuit fixing mechanism 11-5. The circuit fixing mechanism 11-5 comprises a plug-in mounting groove 11-51, a cable mounting groove 11-52, a cable pressing piece 11-53 and a fixing hole 11-54. When assembling, the male connector seat 11-21 is installed in the male connector installation groove 11-51 and connected with the controller 42 through the line 41, one end of the cable 41-1 of the line 41 is connected with the controller 42, one end is connected with the electrical interface device 43, the cable 41-1 is installed in the cable installation groove 11-52 to form a whole, and then is fixedly installed in the proximal end shell 11-32 through the fixing hole 11-54, so that the assembling process is more convenient and reliable.

The shaft assembly 200 is a connecting shaft 21 and a connecting hole 22; the connecting hole 22 is arranged on the active handle 11 and the passive handle 12, and the connecting shaft 21 is embedded in the connecting hole 22 to connect the active handle 11 and the passive handle 12 together. The connection mode of the connection shaft and the connection hole is simple in manufacturing and assembling processes. In practical applications, a person skilled in the art may also design the shaft assembly 200 into other various connection manners such as a sliding block connection manner, a hinge connection manner, and the like according to needs.

The gear position adjusting mechanism 11-1 is connected to the controller 42 through the line 41. Doctors can select different output powers through the gear adjusting mechanism 11-1 according to the specific conditions of the operation process, and the clinical operation is more convenient.

The gear adjusting mechanism 11-1 comprises a cutting gear 11-11 and a fusion gear 11-12; the cutting rail 11-11 and the fusion rail 11-12 are coupled together by means of a lever mechanism 11-13, so that the cutting rail 11-11 and the fusion rail 11-12 cannot be pressed simultaneously. The cutting gear 11-11 and the fusion gear 11-12 can not be pressed down simultaneously, so that the phenomenon of misoperation can not occur in the clinical use process. In practice, the person skilled in the art can also design different mechanisms to realize a single operating choice of the cutting bars 11-11 and the fusion bars 11-12, as required, and applicant does not specifically exemplify this without departing from the scope of protection of the present application.

The handle assembly 100 further comprises a guide mechanism 13; the guide mechanism 13 is composed of a guide block 13-1 and a guide groove 13-2 which are respectively arranged on the active handle 11 and the passive handle 12. When the working surface 31 of the working part 300 is closed, the guide block 13-1 is embedded in the guide groove 13-2, so that the movement or dislocation of the working surface 31 can be effectively prevented, and the effect in the clinical use process is better.

At least one of the working surfaces 31 includes protrusions 30 thereon which are capable of pushing fluid out of the tissue. Because the working surface 31 is provided with the bulge 30 which can extrude the liquid in the tissue outwards, when the working surface 31 is closed, the bulge 30 can quickly extrude the liquid in the tissue out of the working area, at the moment, under the action of the heating device 32, the working surface 31 starts to heat up, and because the interference of the liquid in the tissue on the working process is reduced, the protein in the working area is quickly aggregated and modified, and the ablation, cutting and fusion effects of the tissue are better.

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 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, and even if an unexpected phenomenon such as electric leakage occurs in the use process, the human body cannot be accidentally injured. 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.

Further, 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 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.

During 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 handle assembly 100 is held, the passive handle 12 rotates around the connecting shaft 21, the working surface 31 of the working part 300 is closed, the cutting gear 11-11 or the fusion gear 11-22 is selected to be pressed down, the gear adjusting mechanism 11-1 is connected with the controller 42, at the moment, the circuit system 400 connects the power supply 500 with the electric heating device 32, the electric heating device 32 starts to generate heat to melt, cut or fuse tissues, the operation is finished, the passive handle 12 is opened, the working surface 31 is opened, and one-time operation is completed. Different tissue parts are selected in sequence, so that the operation can be completed, 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, a circuit system 400, and a power source 500. The handle assembly 100 comprises an active handle 11 and a passive handle 12; the active handle 11 and the passive handle 12 are connected together by the shaft assembly 200. The active handle 11 comprises a gear adjusting mechanism 11-1, a circuit plugging mechanism 11-2 and a shell 11-3; the gear adjusting mechanism 11-1 is arranged on the shell 11-3; the circuit plugging mechanism 11-2 enables the detachment and connection of the circuitry 400 at the distal 111 and proximal 112 ends of the active handle 11. The distal end 111 of the active handle 11 and the passive handle 12 are connected to form a unitary body by the shaft assembly 200, forming the detachable working end 901 of the tissue ablation, cutting and fusion system of the present invention. Since the detachable working end 901 only comprises the electric heating device 32 and the circuit 41, and does not comprise electronic components such as capacitors, etc., and the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, the sterilization process is safer, and the manufacturing cost of the detachable working end 901 is lower.

Drawings

Fig. 1 is a schematic perspective view of the tissue ablation, cutting and fusion system of the present invention.

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

Fig. 2 is a schematic perspective view of the detachable working end of fig. 1 shown in detached configuration.

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

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

Fig. 2-3 are exploded views of fig. 2.

Fig. 3 is a perspective view of the tissue ablation, cutting and fusion system of the present invention with a water supply/drainage system.

Fig. 3-1 is a schematic view of the disassembled case of fig. 3.

Fig. 4 is a schematic perspective view of the detachable working end of fig. 3 shown in a detached configuration.

Fig. 4-1 is a cross-sectional view of fig. 4.

Fig. 5 is a schematic perspective view of the tissue ablation, cutting and fusion system of the present invention with both a water supply/drainage system and a smoke evacuation system.

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

Fig. 6 is a schematic perspective view of a tissue ablation, cutting and fusion system with a host.

Fig. 7 is a perspective view of a tissue ablation, cutting and fusion system of the present invention with a battery and battery pack.

In the above figures:

100 is the handle subassembly, 200 is the axle subassembly, 300 is the work portion, 400 is circuit system, 500 is the power, 600 is the reminder system, 700 is the system of discharging fume, 800 is the water supply/drainage system, 900 is the utility model discloses a tissue ablation, cutting and fusion system.

111 is the distal end, 112 is the near-end, 401 is the temperature control subassembly, 501 is direct current pulse power supply, 901 is the utility model discloses a tissue ablation, cutting and fusion system's detachable work end.

On the handle assembly:

11 is an active handle, 12 is a passive handle, and 13 is a guide mechanism.

11-1 is a gear adjusting mechanism, 11-2 is a circuit plugging mechanism, 11-3 is a shell, 11-5 is a circuit fixing mechanism, 13-1 is a guide block, and 13-2 is a guide groove.

11-11 is a cutting gear, 11-12 is a fusion gear, and 11-13 is a lever mechanism; 11-21 are male connector seats, and 11-22 are female connector seats; 11-31 are far-end shells, 11-32 are near-end shells, and 11-33 are locking switches; 11-51 are plug-in mounting grooves, 11-52 are cable mounting grooves, 11-53 are cable pressing parts, and 11-54 are fixing holes.

11-31-1 is a mounting sliding groove, 11-31-2 is a positioning groove, 11-32-1 is a sliding block, and 11-32-2 is a positioning convex step.

On the shaft assembly:

21 is a connecting shaft, 22 is a connecting hole

The working part is provided with:

30 is a projection, 31 is a working surface, 32 is an electric heating device, 33 is an outer tube, and 34 is an insulating layer.

On the circuit system:

41 is a circuit, 42 is a controller, and 43 is an electrical interface device; 41-1 is a cable, 41-2 is a conductive core rod, and 43-3 is an electrical interface.

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 utility model

Referring to fig. 1-2-3, 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 an active handle 11 and a passive handle 12; the active handle 11 and the passive handle 12 are connected together by the shaft assembly 200.

The active handle 11 comprises a gear adjusting mechanism 11-1, a circuit plugging mechanism 11-2 and a shell 11-3; the gear adjusting mechanism 11-1 is arranged on the shell 11-3; the circuit plugging mechanism 11-2 enables the detachment and connection of the circuitry 400 at the distal 111 and proximal 112 ends of the active handle 11.

The opening and closing movement of the active handle 11 and the passive handle 12 can realize the opening and closing of the working surface 31.

Referring to fig. 2 and 2-1, the distal end 111 and the proximal end 112 of the active handle 11 are detachably two-part, and the distal end 111 and the proximal end 112 are detachable and connectable by the circuit plugging mechanism 11-2. The active handle 11 with the distal end of passive handle 12 with the work portion 300 is connected, the distal end 111 of active handle 11 with the passive handle 12 passes through the axle subassembly 200 is connected and is constituted a whole, forms the utility model discloses a tissue ablation, cutting and fusion system's can dismantle work end 901. During sterilization, only the detachable working end 901 needs to be sterilized. Since the detachable working end 901 only comprises the electric heating device 32 and the circuit 41, and does not comprise electronic components such as capacitors, etc., and the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, the sterilization process is safer, and the manufacturing cost of the detachable working end 901 is lower.

In clinical use, the detachable working end 901 is connected to the proximal end 112 of the active handle 11 for use, and when replacement is needed, the detachable working end 901 is detached for replacement, so that the clinical use cost can be effectively reduced, and refer to fig. 2 and 4.

Referring to fig. 1-1 and 2-1, the circuit plugging mechanism 11-2 includes a male connector seat 11-21 and a female connector seat 11-22, the male connector seat 11-21 and the female connector seat 11-22 are respectively disposed on the proximal end 112 and the distal end 111, and the male connector seat 11-21 and the female connector seat 11-22 can realize connection and disconnection of the circuit 41 in the active handle 11.

In this embodiment, the housing 11-3 includes a distal housing 11-31 and a proximal housing 11-32. The distal housing 11-31 is disposed outside the distal end 111 of the active handle 11, the proximal housing 11-32 is disposed outside the proximal end 112 of the active handle 11, and the distal housing 11-31 and the proximal housing 11-32 mate with each other to form the complete housing 11-3 when connected together. Because the circuit systems 400 of the distal end 111 and the proximal end 112 of the active handle 11 are respectively installed in the distal housings 11 to 31 and the proximal housings 11 to 32, the distal housings 11 to 31 and the proximal housings 11 to 32 only need to be connected and disconnected during connection and disconnection, and the clinical use process is more convenient.

In this embodiment, the distal housing 11-31 and the proximal housing 11-32 are connected together by a male-female snap fit. The far-end shell 11-31 is provided with a mounting chute 11-31-1 and a positioning groove 11-31-2, and the near-end shell 11-32 is provided with a slide block 11-32-1 and a positioning convex step 11-32-2; the sliding block 11-32-1 is embedded in the installation sliding groove 11-31-1 and can move back and forth along the installation sliding groove 11-31-1, and when the positioning groove 11-31-2 is embedded in the positioning convex step 11-32-2, the far-end shell 11-31 and the near-end shell 11-32 are fixedly connected.

In practical applications, a person skilled in the art may also design different connection manners such as an interference fit manner, a rotation connection manner, and the like according to needs, and the applicant does not exemplify the connection manners here, but does not depart from the protection scope of the present application.

Referring to fig. 1-1 and 2-1, the housing 11-3 is further provided with a locking switch 11-33. When the locking switch 11-33 is pressed, the distal shell 11-31 and the proximal shell 11-32 can be separated, so that accidental mistaken detachment of the active handle 11 in the use process is effectively prevented, and the clinical use is safer.

Referring to fig. 2-1 and 2-3, in this embodiment, the active handle 11 further includes a circuit fixing mechanism 11-5, and the circuit system 400 is fixedly mounted on the housing 11-3 through the circuit fixing mechanism 11-5. The circuit fixing mechanism 11-5 comprises a plug-in mounting groove 11-51, a cable mounting groove 11-52, a cable pressing piece 11-53 and a fixing hole 11-54. When assembling, the male connector seat 11-21 is installed in the male connector installation groove 11-51 and connected with the controller 42 through the line 41, one end of the cable 41-1 of the line 41 is connected with the controller 42, one end is connected with the electrical interface device 43, the cable 41-1 is installed in the cable installation groove 11-52 to form a whole, and then is fixedly installed in the proximal end shell 11-32 through the fixing hole 11-54, so that the assembling process is more convenient and reliable.

The handle assembly 100 comprises a guide mechanism 13; the guide mechanism 13 is composed of a guide block 13-1 and a guide groove 13-2 which are respectively arranged on the active handle 11 and the passive handle 12. When the working surface 31 of the working part 300 is closed, the guide block 13-1 is embedded in the guide groove 13-2, so that the movement or dislocation of the working surface 31 can be effectively prevented, and the effect in the clinical use process is better.

In this embodiment, the shaft assembly 200 is a connecting shaft 21 and a connecting hole 22; the connecting hole 22 is arranged on the active handle 11 and the passive handle 12, and the connecting shaft 21 is embedded in the connecting hole 22 to connect the active handle 11 and the passive handle 12 together. The connection mode of the connection shaft and the connection hole is simple in manufacturing and assembling processes. In practical applications, a person skilled in the art may also design the shaft assembly 200 into other various connection manners such as a sliding block connection manner, a hinge connection manner, and the like according to needs.

In this embodiment, the working portion 300 includes 2 working surfaces 31, and 1 of the working surfaces 31 is provided with an electric heating device 32; the electric heating device 32 is connected to the power supply 500 via the circuit system 400.

The working portion 300 may be integrally formed at the distal end of the handle assembly 100 or may be detachably disposed at the distal end of the handle assembly 100.

Referring to fig. 2-1 and 2-2, in this embodiment, the electric heating device 32 is a heating wire 32-1, one end of the heating wire 32-1 is connected to the positive electrode of the circuit system 400 through a conductive core rod 41-2, the other end is connected to the outer tube 33 of the working part 300, and is connected to the negative electrode of the circuit system 400 through the outer tube 33, and an insulating layer 34 is disposed between the conductive core rod 41-2 and the outer tube 33 for safety.

Referring to fig. 2-2, the heating wire 32-1 forms a protrusion 30 on the working surface 31 for pushing out the liquid in the tissue. Because the working surface 31 is provided with the bulge 30 which can extrude the liquid in the tissue outwards, when the working surface 31 is closed, the bulge 30 can quickly extrude the liquid in the tissue out of the working area, at the moment, under the action of the heating device 32, the working surface 31 starts to heat up, and because the interference of the liquid in the tissue on the working process is reduced, the protein in the working area is quickly aggregated and modified, and the ablation, cutting and fusion effects of the tissue are better.

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.

In the embodiment, the gear adjusting mechanism 11-1 comprises a cutting gear 11-11 and a fusion gear 11-12; the cutting rail 11-11 and the fusion rail 11-12 are coupled together by means of a lever mechanism 11-13, so that the cutting rail 11-11 and the fusion rail 11-12 cannot be pressed simultaneously. The cutting gear 11-11 and the fusion gear 11-12 can not be pressed down simultaneously, so that the phenomenon of misoperation can not occur in the clinical use process. In practice, the person skilled in the art can also design different mechanisms to realize a single operating choice of the cutting bars 11-11 and the fusion bars 11-12, as required, and applicant does not specifically exemplify this without departing from the scope of protection of the present application.

Referring to fig. 1-1 and 2-1, 2-2, the tissue ablation, cutting and fusion system 900 further includes a temperature control assembly 401.

Referring to fig. 6 and 7, 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.

In this embodiment, the power supply 500 is a low voltage power supply with an output voltage less than 24V. Preferably, the output voltage of the power supply 500 is less than 12V. The output voltage of the power supply 500 is a safe voltage less than 24V, and even if an unexpected phenomenon such as electric leakage occurs in the use process, the human body cannot be accidentally injured.

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 power-on heating of the electric heating device 32, and the periodic change of the state of moderate temperature reduction of the power-off, so that the temperature of the contact part of the heating device 32 and the tissue or the organ is kept in a stable range and can not be continuously increased in the process of continuously conducting heat to the deep part of the tissue or the organ, the accidental injury of the tissue or the organ caused by overhigh temperature is effectively avoided, and the clinical use process is safer and more reliable.

Further, 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 to be ablated, cut, or fused.

Referring to fig. 6, in the present embodiment, the tissue ablation, cutting and fusion system 900 further comprises 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 can be an audio 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.

Referring to fig. 5 and 5-1, 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.

Referring to fig. 3-4-1, the tissue ablation, cutting and fusion system 900 may further 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.

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 to the conductive core rod 41-2 disposed in the rod core at the far end of the working part 300 and the active handle 11, and is connected to the positive electrode of the connector female socket 11-22 through the conductive core rod 41-2, and is connected to the positive electrode of the matched connector male socket 11-21 through the positive electrode of the connector female socket 11-22, and is connected to the positive electrode of the power supply 500 through the cable 41-1 and the electrical interface 43-3.

Negative electrode circuit: the negative electrode of the electric heating device 32 is connected to the outer tube 33 of the working part 300, connected to the negative electrode of the female connector holder 11-22 through the outer tube 33, connected to the negative electrode of the male connector holder 11-21 matching the female connector holder 11-22, and connected to the negative electrode of the power supply 500 through the cable 41-1 and the electrical interface 43-3.

In this embodiment, the working current flows in through the positive electrode of the electrical interface 43-3, flows in through the positive electrode of the male connector seat 11-21 through the cable 41-1, flows out through the male connector seat 11-21, enters the positive electrode of the female connector seat 11-22, flows out from the female connector seat 11-22, flows in through the conductive core bar 41-2 from the positive electrode of the electric heating device 32, drives the electric heating device 32 to generate heat, flows out from the negative electrode of the electric heating device 32, enters the distal end of the outer tube 33, flows out through the outer tube 33, enters the negative electrode of the female connector seat 11-22, flows out through the female connector seat 11-22, enters the male connector seat 11-21, flows out through the male connector seat 11-21, and flows in through the electrical interface 43-3 through the cable 41-1, through the electrical interface 43-3 and into the negative terminal of the power supply 500.

In this embodiment, the distal end 111 and the proximal end 112 of the active handle 11 are detachable, the distal ends of the active handle 11 and the passive handle 12 are connected to the working portion 300, and the distal end 111 of the active handle 11 and the passive handle 12 are connected to form a whole through the shaft assembly 200, thereby forming the detachable working end 901 of the tissue ablation, cutting and fusion system of the present invention. During sterilization, only the detachable working end 901 needs to be sterilized. Since the detachable working end 901 only comprises the electric heating device 32 and the circuit 41, and does not comprise electronic components such as capacitors, etc., and the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, the sterilization process is safer, and the manufacturing cost of the detachable working end 901 is lower.

It should be noted that the structures disclosed and described herein may be replaced by other structures having the same effect, and the embodiments described herein are not the only structures for implementing the present 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 merely illustrative and that numerous changes, modifications and substitutions can be made without departing from the invention herein, 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), and a power source (500);

B. the handle assembly (100) comprises a source handle (11) and a passive handle (12); the active handle (11) and the passive handle (12) are connected together by the shaft assembly (200);

C. the active handle (11) comprises a gear adjusting mechanism (11-1), a circuit plugging mechanism (11-2) and a shell (11-3); the gear adjusting mechanism (11-1) is arranged on the shell (11-3); the circuit plugging mechanism (11-2) can realize the detachment and connection of the circuit system (400) of the far end (111) and the near end (112) of the active handle (11);

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); the electric heating device (32) is connected with the power supply (500) through the circuit system (400); the opening and closing movement of the active handle (11) and the passive handle (12) can realize the opening and closing of the working surface (31);

E. the circuit system (400) comprises a circuit (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).

2. The tissue ablation, cutting and fusion system of claim 1, wherein: the circuit plugging mechanism (11-2) comprises a male connector seat (11-21) and a female connector seat (11-22), the male connector seat (11-21) and the female connector seat (11-22) are respectively arranged on the near end (112) and the far end (111), and the male connector seat (11-21) and the female connector seat (11-22) can realize connection and separation of a circuit (41) in the active handle (11).

3. The tissue ablation, cutting and fusion system of claim 1, wherein: the housing (11-3) comprises a distal housing (11-31) and a proximal housing (11-32).

4. The tissue ablation, cutting and fusion system of claim 3, wherein: the far-end shell (11-31) and the near-end shell (11-32) are connected together in a male-female snap fit mode, an interference fit mode or a rotary connection mode.

5. The tissue ablation, cutting and fusion system of claim 4, wherein: the far-end shell (11-31) and the near-end shell (11-32) are connected together in a male-female snap fit manner; the far-end shell (11-31) is provided with a mounting chute (11-31-1) and a positioning convex step (11-31-2), and the near-end shell (11-32) is provided with a slide block (11-32-1) and a positioning groove (11-32-2); the sliding block (11-32-1) is embedded in the installation sliding groove (11-31-1) and can move back and forth along the installation sliding groove (11-31-1), and when the positioning convex step (11-31-2) is embedded into the positioning groove (11-32-2), the far-end shell (11-31) and the near-end shell (11-32) are fixedly connected.

6. The tissue ablation, cutting and fusion system of claim 3, wherein: the shell (11-3) is also provided with a locking switch (11-33).

7. The tissue ablation, cutting and fusion system of claim 1, wherein: the tissue ablation, cutting and fusion system (900) also includes a temperature control assembly (401).

8. The tissue ablation, cutting and fusion system of claim 7, wherein: 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).

9. The tissue ablation, cutting and fusion system of claim 1, wherein: the active handle (11) further comprises a circuit fixing mechanism (11-5), and the circuit system (400) is fixedly mounted on the shell (11-3) through the circuit fixing mechanism (11-5).

10. The tissue ablation, cutting and fusion system of claim 1, wherein: the shaft assembly (200) is a connecting shaft (21) and a connecting hole (22); the connecting hole (22) is formed in the active handle (11) and the passive handle (12), and the connecting shaft (21) is embedded in the connecting hole (22) and used for connecting the active handle (11) and the passive handle (12) together.

11. The tissue ablation, cutting and fusion system of claim 1, wherein: the gear adjusting mechanism (11-1) is connected with the controller (42) through the line (41).

12. The tissue ablation, cutting and fusion system of claim 1, wherein: the gear adjusting mechanism (11-1) comprises a cutting gear (11-11) and a fusing gear (11-12); the cutting rail (11-11) and the fusion rail (11-12) are linked together by a lever mechanism (11-13) such that the cutting rail (11-11) and the fusion rail (11-12) cannot be pressed simultaneously.

13. The tissue ablation, cutting and fusion system of claim 1, wherein: the handle assembly (100) also comprises a guide mechanism (13); the guide mechanism (13) is composed of a guide block (13-1) and a guide groove (13-2) which are respectively arranged on the active handle (11) and the passive handle (12).

14. The tissue ablation, cutting and fusion system of claim 1, wherein: at least one of the working surfaces (31) has projections (30) thereon which are capable of pushing fluid out of the tissue.

15. 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).

16. The tissue ablation, cutting and fusion system of claim 1, wherein: the power supply (500) is a low voltage power supply with an output voltage less than 24V.

17. The tissue ablation, cutting and fusion system of claim 1, wherein: the power supply (500) is a direct current pulse power supply (501).

18. The tissue ablation, cutting and fusion system of claim 17, wherein: the duty ratio of the direct current pulse voltage output by the direct current pulse power supply (501) can be adjusted.

19. 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).

20. The tissue ablation, cutting and fusion system of claim 19, wherein: the prompting system (600) is a voice prompting device (61), a light prompting device (62) or an image prompting device (63).

21. 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).

22. 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).