Tissue ablation, cutting and fusion systems

Abstract

The tissue ablation, cutting and fusion system of the present invention comprises a handle assembly, an axis assembly, a working part, a circuit system and a power supply. The handle assembly comprises an active handle and a passive handle; the active handle and the passive handle are connected together through an axis assembly. The active handle comprises a gear adjustment mechanism, a circuit plug mechanism and a housing. The gear adjustment mechanism is arranged on the housing; the circuit plug mechanism can realize the separation and connection of the circuit systems at the distal and proximal ends of the active handle. The distal end of the active handle and the passive handle are connected as a whole through the axis assembly to form a detachable working end of the tissue ablation, cutting and fusion system of the present invention. Since the detachable working end only comprises an electric heating device and a circuit, and does not comprise electronic components such as capacitors, and electronic components such as a controller and an electrical interface device are all arranged at the proximal end, the sterilization process is safer and the manufacturing cost of the detachable working end is lower.

Description

Technical Field

[0001] The present invention relates to an electrosurgical instrument, in particular to a surgical instrument used for tissue ablation, cutting and fusion in surgical operations. Background Art

[0002] In surgical operations, tissue ablation, cutting and fusion are very important tissue processing processes. Among the commonly used tissue ablation, cutting and fusion technologies, the electric heating tissue ablation method is one of the important technologies. By heating the tissue, protein modification occurs, thereby achieving tissue ablation, cutting and fusion processes.

[0003] In the existing tissue ablation, cutting and fusion systems, since the working part needs to be heated, a heating system and corresponding electronic and circuit systems need to be designed in the working part. The working part is a part that is in direct contact with human tissue, so it must be sterilized.

[0004] Ethylene oxide sterilization is currently the most widely used and most effective sterilization method, but if the sterilized product contains electronic components such as capacitors, accidents such as explosions are prone to occur during the ethylene oxide sterilization process.

[0005] In order to reduce the operational risks of the sterilization process and reduce the disposable cost of the product, the present invention improves the structure and circuit system of the existing tissue ablation, cutting and fusion system, and centrally arranges electronic components such as capacitors at the rear end of the handle. At the same time, the front and rear ends of the handle are designed to be detachable. Only the front end of the handle without electronic components such as capacitors needs to be sterilized, thereby achieving the purpose of reducing the safety risks of the sterilization process and reducing the cost of product use. Summary of the invention

[0006] The tissue ablation, cutting and fusion system of the present invention has a detachable active handle, and electronic components such as capacitors are arranged at the proximal end of the active handle. When sterilization is required, the distal end of the active handle can be removed for sterilization. Since the distal end of the active handle only has a heating wire and does not contain electronic components such as capacitors, the sterilization process is safer. In clinical use, only the distal end of the active handle needs to be replaced, thereby reducing the cost of clinical use.

[0007] A tissue ablation, cutting and fusion system of the present invention is characterized by:

[0008] A. The tissue ablation, cutting and fusion system 900 comprises a handle assembly 100, an axis assembly 200, a working part 300, a circuit system 400, and a power supply 500;

[0009] B. The handle assembly 100 includes an active handle 11 and a passive handle 12; the active handle 11 and the passive handle 12 are connected together through the shaft assembly 200;

[0010] C. The active handle 11 comprises a gear adjustment mechanism 11-1, a circuit plug mechanism 11-2 and a housing 11-3; the gear adjustment mechanism 11-1 is arranged on the housing 11-3; the circuit plug mechanism 11-2 can realize the separation and connection of the circuit system 400 at the far end 111 and the near end 112 of the active handle 11;

[0011] D. The working part 300 includes at least two working surfaces 31, and at least one of the working surfaces 31 is provided with an electric heating device 32; the electric heating device 32 is connected to the power source 500 through the circuit system 400; the opening and closing movements of the active handle 11 and the passive handle 12 can realize the opening and closing of the working surface 31;

[0012] E. The circuit system 400 includes a circuit 41, a controller 42 and an electrical interface device 43; the circuit system 400 is connected to the power supply 500 via the electrical interface device 43.

[0013] The distal end 111 and the proximal end 112 of the active handle 11 are two detachable parts, and the distal end 111 and the proximal end 112 can be detached and connected through the circuit plug mechanism 11-2. The distal ends of the active handle 11 and the passive handle 12 are connected to the working part 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, forming a detachable working end 901 of the tissue ablation, cutting and fusion system of the present invention. During sterilization, it is only necessary to sterilize the detachable working end 901. Since the detachable working end 901 only contains the electric heating device 32 and the circuit 41, and does not contain electronic components such as capacitors, the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, so the sterilization process is safer and the manufacturing cost of the detachable working end 901 is lower.

[0014] When in clinical use, the detachable working end 901 can be connected to the proximal end 112 of the active handle 11 for use. When replacement is required, the detachable working end 901 can be removed and replaced, which can effectively reduce the cost of clinical use.

[0015] The circuit connection mechanism 11-2 includes a male connector 11-21 and a female connector 11-22, and the male connector 11-21 and the female connector 11-22 are respectively arranged on the proximal end 112 and the distal end 111, and the male connector 11-21 and the female connector 11-22 can realize the connection and disconnection of the line 41 in the active handle 11.

[0016] The connector male socket 11-21 and the connector female socket 11-22 match each other. When connecting and disconnecting, you only need to insert the connector male socket 11-21 into the connector female socket 11-22 or pull it out from the connector female socket 11-22, which is very convenient to use.

[0017] The shell 11-3 includes a distal shell 11-31 and a proximal shell 11-32. The distal shell 11-31 is arranged outside the distal end 111 of the active handle 11, and the proximal shell 11-32 is arranged outside the proximal end of the active handle 11. The distal shell 11-31 and the proximal shell 11-32 match each other and form a complete shell 11-3 when connected together. Since the circuit system 400 of the distal end 111 and the proximal end 112 of the active handle 11 are respectively installed in the distal shell 11-31 and the proximal shell 11-32, when connecting and disassembling, it is only necessary to connect and disassemble the distal shell 11-31 and the proximal shell 11-32, which makes the clinical use process more convenient.

[0018] The distal housing 11-31 and the proximal housing 11-32 are connected together by a concave-convex card fit, an interference fit, or a rotational connection. The applicant only lists the above-mentioned connection methods. In actual applications, technicians in this field can also design different connection methods as needed. The applicant does not give examples one by one here, but they all do not deviate from the protection scope of this application.

[0019] Furthermore, the distal shell 11-31 and the proximal shell 11-32 are connected together by a concave-convex snap-fit ​​manner; the distal shell 11-31 is provided with an installation groove 11-31-1 and a positioning groove 11-31-2, and the proximal shell 11-32 is provided with a slider 11-32-1 and a positioning convex step 11-32-2; the slider 11-32-1 is embedded in the installation groove 11-31-1 and can move back and forth along the installation groove 11-31-1, and when the positioning groove 11-31-2 is embedded in the positioning convex step 11-32-2, the distal shell 11-31 and the proximal shell 11-32 are connected and fixed.

[0020] The housing 11-3 is also provided with a locking switch 11-33. When the locking switch 11-33 is pressed, the distal housing 11-31 and the proximal housing 11-32 can be separated, effectively preventing the active handle 11 from being accidentally separated during use, making clinical use safer.

[0021] The tissue ablation, cutting and fusion system 900 further includes a temperature control component 401 .

[0022] The temperature control component 401 includes a temperature acquisition system 40 - 1 and a data transmission system 40 - 2 ; the temperature data acquired by the temperature acquisition system 40 - 1 can be transmitted to the controller 42 via the data transmission system 40 - 2 .

[0023] Due to the design of the temperature control component 401, when the temperature collected by the temperature collection system 40-1 exceeds the set limit temperature value, it 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 will issue instructions to process the electric heating device 32, such as powering off the line 41, or adjusting 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 accidental damage to the tissue or accidental damage to the components caused by the electric heating device 32 being in a high temperature state for a long time.

[0024] The active handle 11 also includes a circuit fixing mechanism 11-5, and the circuit 400 is fixedly installed on the shell 11-3 through the circuit fixing mechanism 11-5. The circuit fixing mechanism 11-5 includes a plug-in installation slot 11-51, a cable installation slot 11-52, a cable pressing piece 11-53 and a fixing hole 11-54. During assembly, the connector male seat 11-21 is installed in the plug-in installation slot 11-51, and connected to the controller 42 through the circuit 41. One end of the cable 41-1 of the circuit 41 is connected to the controller 42, and the other end is connected to the electrical interface device 43. The cable 41-1 is installed in the cable installation slot 11-52 to form a whole, and then fixedly installed in the proximal shell 11-32 through the fixing hole 11-54, and the assembly process is more convenient and reliable.

[0025] The shaft assembly 200 is a connecting shaft 21 and a connecting hole 22; the connecting hole 22 is provided 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 manufacturing and assembly process of this connection method in which the connecting shaft and the connecting hole cooperate is very simple. The applicant only lists the shaft connection method in which the connecting shaft and the connecting hole cooperate. In actual applications, technicians in this field can also design the shaft assembly 200 into various other connection methods such as a slider connection method and a hinge connection method as needed. The applicant does not give examples one by one here, but they all do not deviate from the protection scope of this application.

[0026] The gear adjustment mechanism 11-1 is connected to the controller 42 via the line 41. Doctors can select different output powers through the gear adjustment mechanism 11-1 according to the specific conditions of the surgical process, which makes clinical operation more convenient.

[0027] The gear adjustment mechanism 11-1 includes a cutting gear 11-11 and a fusion gear 11-12; the cutting gear 11-11 and the fusion gear 11-12 are linked together by a lever mechanism 11-13, so that the cutting gear 11-11 and the fusion gear 11-12 cannot be pressed at the same time. The cutting gear 11-11 and the fusion gear 11-12 cannot be pressed at the same time, which can ensure that no misoperation occurs during clinical use. In actual applications, technicians in this field can also design different mechanisms as needed to achieve a single operation selection of the cutting gear 11-11 and the fusion gear 11-12. The applicant does not give specific examples here, but they do not deviate from the scope of protection of this application.

[0028] The handle assembly 100 also includes a guide mechanism 13; the guide mechanism 13 is composed of a guide block 13-1 and a guide groove 13-2 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, which can effectively prevent the movement or dislocation of the working surface 31, and the effect during clinical use is better.

[0029] At least one of the working surfaces 31 has a protrusion 30 that can squeeze out the liquid in the tissue. Since the working surface 31 is provided with the protrusion 30 that can squeeze out the liquid in the tissue, when the working surface 31 is closed, the protrusion 30 can quickly squeeze the liquid in the tissue out of the working area. At this time, under the action of the heating device 32, the working surface 31 begins to heat up. Since the interference of the liquid in the tissue on the working process is reduced, the protein in the working area is quickly coagulated and modified, and the ablation, cutting and fusion effects of the tissue are better.

[0030] The power source 500 is a battery 51, or a battery pack 52, or a host 53. The battery 51 or the battery pack 52 is small in size and light in weight, suitable for carrying outside, has low requirements for the power environment, and low-voltage power supply is safer, while the host 53 can provide stable power supply for a long time, especially suitable for large-scale operations with long operation time; users can choose different power sources 500 according to different use environments and use requirements.

[0031] 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 leakage or other unexpected phenomena occur during use, no accidental harm will be caused to the human body. Preferably, the output voltage of the power supply 500 is less than 12V.

[0032] The power supply 500 is a DC pulse power supply 501. The DC 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 alternating changes between high level and low level, and keeps the electric heating device 32 in the periodic change of power-on heating and power-off to moderately cool down, so that in the process of heat being continuously conducted to the deep of the tissue or organ 9, the temperature of the part where the heating device contacts the tissue or organ 9 is kept within a stable range and will not continue to rise, effectively avoiding accidental damage to the tissue or organ 9 caused by excessive temperature, and the clinical use process is safer and more reliable.

[0033] Furthermore, the duty cycle of the DC pulse voltage output by the DC pulse power supply 501 is adjustable and is adjusted according to the different thermal conductivity of the tissue or organ 9 to be ablated, cut, or fused.

[0034] The tissue ablation, cutting and fusion system 900 also includes a prompt system 600. The prompt system 600 can prompt the operator of the use status of the instrument as needed, such as using different sounds to prompt different working states, using different lights to prompt the power status, and using different patterns to prompt different working parts.

[0035] The prompt system 600 is a sound prompt device 61, or a light prompt device 62, or an image prompt device 63. The applicant only lists the above three prompt devices, and those skilled in the art can design different prompt system structures as needed without departing from the protection scope of this application.

[0036] The tissue ablation, cutting and fusion system 900 also includes a smoke exhaust system 700; the smoke exhaust system 700 includes a smoke outlet 71, a smoke exhaust pipe 72 and a smoke inlet 73. The smoke outlet 71 of the smoke exhaust system 700 can be connected to a medical negative pressure source to timely extract the smoke generated during the operation out of the body, thereby ensuring a clear surgical field of view and making the surgical process safer and more reliable.

[0037] The tissue ablation, cutting and fusion system 900 also includes a water supply / drainage system 800; the water supply / drainage system 800 includes a water outlet 81, a drain pipe 82 and a water inlet 83. The drain pipe 82 of the water supply / drainage system 800 can be either a drain pipe or a water supply pipe. During the operation, the doctor can inject physiological saline or other solvents into the surgical site through the water supply / drainage system 800 according to the needs of the operation, and can also use the water supply / drainage system 800 to promptly discharge blood or sewage from the surgical site to ensure the smooth progress of the operation.

[0038] During clinical use, the power source 500 is connected to 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 pressed, and the gear adjustment mechanism 11-1 is connected to the controller 42. At this time, the circuit system 400 connects the power source 500 and the electric heating device 32, and the electric heating device 32 starts to heat up, ablating, cutting or fusing the tissue. After the operation is completed, the passive handle 12 is opened, the working surface 31 is opened, and the operation is completed. The surgical operation can be completed by selecting different tissue parts in turn, and the operation process is very simple.

[0039] During use, 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. When the acquired temperature value exceeds the temperature value set by the controller 42, the controller 42 cuts off the power to the line 41, or adjusts the current or voltage output by the power supply 500, etc., so as to achieve the control effect of lowering the working temperature of the working part 300, and effectively avoid accidental tissue damage or accidental damage to components caused by the electric heating device 32 being in a high temperature state for a long time.

[0040] The tissue ablation, cutting and fusion system of the present invention comprises a handle assembly 100, an axis assembly 200, a working part 300, a circuit system 400, and a power supply 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 through the axis assembly 200. The active handle 11 comprises a gear adjustment mechanism 11-1, a circuit plug mechanism 11-2 and a housing 11-3; the gear adjustment mechanism 11-1 is arranged on the housing 11-3; the circuit plug mechanism 11-2 can realize the separation and connection of the circuit system 400 at the distal end 111 and the proximal end 112 of the active handle 11. The distal end 111 of the active handle 11 and the passive handle 12 are connected to form a whole through the axis assembly 200, forming a detachable working end 901 of the tissue ablation, cutting and fusion system of the present invention. Since the detachable working end 901 only contains the electric heating device 32 and the circuit 41, and does not contain electronic components such as capacitors, the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112. Therefore, the sterilization process is safer and the manufacturing cost of the detachable working end 901 is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of the tissue ablation, cutting and fusion system of the present invention.

[0042] Figure 1-1 yes Figure 1 sectional view of .

[0043] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure when the detachable working end is disassembled.

[0044] Figure 2-1 yes Figure 2 sectional view of .

[0045] Figure 2-2 yes Figure 2-1 Enlarged view of point A.

[0046] Figure 2-3 yes Figure 2 Exploded diagram.

[0047] Figure 3 It is a three-dimensional structural schematic diagram of the tissue ablation, cutting and fusion system of the present invention provided with / drainage system.

[0048] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure when the detachable working end is disassembled.

[0049] Figure 4-1 yes Figure 4 sectional view of .

[0050] Figure 5 It is a three-dimensional structural schematic diagram of the tissue ablation, cutting and fusion system of the present invention which is provided with both a drainage system and a smoke exhaust system.

[0051] Figure 5-1 yes Figure 5 sectional view of .

[0052] Figure 6 It is a three-dimensional structural schematic diagram of the tissue ablation, cutting and fusion system of the present invention with a host.

[0053] Figure 7 It is a three-dimensional structural schematic diagram of the tissue ablation, cutting and fusion system of the present invention with a battery and a battery pack.

[0054] In the above figure:

[0055] 100 is a handle assembly, 200 is an axis assembly, 300 is a working part, 400 is a circuit system, 500 is a power source, 600 is a prompt system, 700 is a smoke exhaust system, 800 is a water supply / drainage system, and 900 is the tissue ablation, cutting and fusion system of the present invention.

[0056] 111 is the distal end, 112 is the proximal end, 401 is a temperature control component, 501 is a DC pulse power supply, and 901 is a detachable working end of the tissue ablation, cutting and fusion system of the present invention.

[0057] On the handle assembly:

[0058] 11 is an active handle, 12 is a passive handle, and 13 is a guide mechanism.

[0059] 11-1 is a gear adjustment mechanism, 11-2 is a circuit plugging mechanism, 11-3 is a housing, 11-5 is a circuit fixing mechanism, 13-1 is a guide block, and 13-2 is a guide groove.

[0060] 11-11 is the cutting gear, 11-12 is the fusion gear, 11-13 is the lever mechanism; 11-21 is the male connector seat, 11-22 is the female connector seat; 11-31 is the distal shell, 11-32 is the proximal shell, 11-33 is the locking switch; 11-51 is the plug-in installation slot, 11-52 is the cable installation slot, 11-53 is the cable pressing piece, and 11-54 is the fixing hole.

[0061] 11-31-1 is the installation slide groove, 11-31-2 is the positioning groove, 11-32-1 is the slider, and 11-32-2 is the positioning convex step.

[0062] On the shaft assembly:

[0063] 21 is the connecting shaft, 22 is the connecting hole

[0064] Work Department:

[0065] 30 is a protrusion, 31 is a working surface, 32 is an electric heating device, 33 is an outer tube, and 34 is an insulating layer.

[0066] Circuit system:

[0067] 41 is a line, 42 is a controller, 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.

[0068] Temperature control assembly:

[0069] 40-1 is a temperature acquisition system, and 40-2 is a data transmission system.

[0070] On the power supply:

[0071] 51 is a battery, 52 is a battery pack, and 53 is a host.

[0072] On the prompt system:

[0073] 61 is a sound prompt device, 62 is a light prompt device, and 63 is an image prompt device.

[0074] On the smoke exhaust system:

[0075] 71 is the smoke outlet, 72 is the smoke exhaust pipe, and 73 is the smoke inlet.

[0076] On water supply / drainage system:

[0077] 81 is the water outlet, 82 is the drain pipe, and 83 is the water inlet. DETAILED DESCRIPTION

[0078] Example: Tissue ablation, cutting and fusion system of the present invention

[0079] refer to Figures 1 to 2-3 The tissue ablation, cutting and fusion system 900 of this embodiment includes a handle assembly 100, an axis assembly 200, a working part 300, a circuit system 400, a temperature control assembly 401, a power supply 500, a prompt system 600 and a smoke exhaust system 700.

[0080] The handle assembly 100 includes an active handle 11 and a passive handle 12 ; the active handle 11 and the passive handle 12 are connected together via the shaft assembly 200 .

[0081] The active handle 11 includes a gear adjustment mechanism 11-1, a circuit connection mechanism 11-2 and a shell 11-3; the gear adjustment mechanism 11-1 is arranged on the shell 11-3; the circuit connection mechanism 11-2 can realize the separation and connection of the circuit system 400 at the far end 111 and the near end 112 of the active handle 11.

[0082] The opening and closing movements of the active handle 11 and the passive handle 12 can realize the opening and closing of the working surface 31 .

[0083] refer to Figure 2 and Figure 2-1 The distal end 111 and the proximal end 112 of the active handle 11 are two detachable parts, and the distal end 111 and the proximal end 112 can be detached and connected through the circuit plug mechanism 11-2. The distal ends of the active handle 11 and the passive handle 12 are connected to the working part 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, forming a detachable working end 901 of the tissue ablation, cutting and fusion system of the present invention. During sterilization, it is only necessary to sterilize the detachable working end 901. Since the detachable working end 901 only contains the electric heating device 32 and the circuit 41, and does not contain electronic components such as capacitors, the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, so the sterilization process is safer and the manufacturing cost of the detachable working end 901 is lower.

[0084] When used clinically, the detachable working end 901 can be connected to the proximal end 112 of the active handle 11 for use. When replacement is required, the detachable working end 901 can be removed and replaced, which can effectively reduce the cost of clinical use. Figure 2 and Figure 4 .

[0085] refer to Figure 1-1 and Figure 2-1 The circuit connection mechanism 11-2 includes a male connector 11-21 and a female connector 11-22. The male connector 11-21 and the female connector 11-22 are respectively arranged on the proximal end 112 and the distal end 111. The male connector 11-21 and the female connector 11-22 can realize the connection and disconnection of the line 41 in the active handle 11.

[0086] The connector male socket 11-21 and the connector female socket 11-22 match each other. When connecting and disconnecting, you only need to insert the connector male socket 11-21 into the connector female socket 11-22 or pull it out from the connector female socket 11-22, which is very convenient to use.

[0087] In this embodiment, the shell 11-3 includes a distal shell 11-31 and a proximal shell 11-32. The distal shell 11-31 is arranged outside the distal end 111 of the active handle 11, and the proximal shell 11-32 is arranged outside the proximal end 112 of the active handle 11. The distal shell 11-31 and the proximal shell 11-32 match each other and form a complete shell 11-3 when connected together. Since the circuit system 400 of the distal end 111 and the proximal end 112 of the active handle 11 are respectively installed in the distal shell 11-31 and the proximal shell 11-32, when connecting and disassembling, it is only necessary to connect and disassemble the distal shell 11-31 and the proximal shell 11-32, which makes the clinical use process more convenient.

[0088] In this embodiment, the distal shell 11-31 and the proximal shell 11-32 are connected together by a concave-convex card fit. The distal shell 11-31 is provided with an installation slot 11-31-1 and a positioning groove 11-31-2, and the proximal shell 11-32 is provided with a slider 11-32-1 and a positioning convex step 11-32-2; the slider 11-32-1 is embedded in the installation slot 11-31-1 and can move back and forth along the installation slot 11-31-1, and when the positioning groove 11-31-2 is embedded in the positioning convex step 11-32-2, the distal shell 11-31 and the proximal shell 11-32 are connected and fixed.

[0089] In practical applications, technicians in this field can also design different connection methods such as interference fit or rotational connection as needed. The applicant will not give examples one by one here, but they all do not depart from the protection scope of this application.

[0090] refer to Figure 1-1 good Figure 2-1 The housing 11-3 is also provided with a locking switch 11-33. When the locking switch 11-33 is pressed, the distal housing 11-31 and the proximal housing 11-32 can be separated, effectively preventing the active handle 11 from being accidentally separated during use, making clinical use safer.

[0091] refer to Figure 2-1 and Figure 2-3In this embodiment, the active handle 11 also includes a circuit fixing mechanism 11-5, and the circuit 400 is fixedly installed on the shell 11-3 through the circuit fixing mechanism 11-5. The circuit fixing mechanism 11-5 includes a plug-in installation slot 11-51, a cable installation slot 11-52, a cable pressing piece 11-53 and a fixing hole 11-54. During assembly, the connector male seat 11-21 is installed in the plug-in installation slot 11-51, and connected to the controller 42 through the circuit 41. One end of the cable 41-1 of the circuit 41 is connected to the controller 42, and the other end is connected to the electrical interface device 43. The cable 41-1 is installed in the cable installation slot 11-52 to form a whole, and then fixedly installed in the proximal shell 11-32 through the fixing hole 11-54, and the assembly process is more convenient and reliable.

[0092] The handle assembly 100 includes a guide mechanism 13; the guide mechanism 13 is composed of a guide block 13-1 and a guide groove 13-2 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, which can effectively prevent the movement or dislocation of the working surface 31, and the effect during clinical use is better.

[0093] In this embodiment, the shaft assembly 200 is a connecting shaft 21 and a connecting hole 22; the connecting hole 22 is provided 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. This connection method in which the connecting shaft and the connecting hole cooperate is very simple in manufacturing and assembly process. The applicant only lists here the shaft connection method in which the above-mentioned connecting shaft and the connecting hole cooperate. In actual applications, technicians in this field can also design the shaft assembly 200 into various other connection methods such as a slider connection method and a hinge connection method as needed. The applicant does not give examples one by one here, but they all do not deviate from the protection scope of this application.

[0094] In this embodiment, the working part 300 includes two working surfaces 31 , and an electric heating device 32 is disposed on one of the working surfaces 31 ; the electric heating device 32 is connected to the power source 500 through the circuit system 400 .

[0095] The working portion 300 may be integrally manufactured at the distal end of the handle assembly 100 , or may be detachably disposed at the distal end of the handle assembly 100 .

[0096] refer to Figure 2-1 and Figure 2-2In 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, and 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. To ensure safety, an insulating layer 34 is provided between the conductive core rod 41-2 and the outer tube 33.

[0097] refer to Figure 2-2 , the heating wire 32-1 constitutes a protrusion 30 on the working surface 31 that can squeeze out the liquid in the tissue. Since the protrusion 30 that can squeeze out the liquid in the tissue is provided on the working surface 31, when the working surface 31 is closed, the protrusion 30 can quickly squeeze the liquid in the tissue out of the working area. At this time, under the action of the heating device 32, the working surface 31 begins to heat up. Since the interference of the liquid in the tissue on the working process is reduced, the protein in the working area is quickly coagulated and modified, and the ablation, cutting and fusion effects of the tissue are better.

[0098] The circuit system 400 includes a circuit 41 , a controller 42 and an electrical interface device 43 ; the circuit system 400 is connected to the power source 500 via the electrical interface device 43 .

[0099] The gear adjustment mechanism 11-1 is connected to the controller 42 via the line 41. Doctors can select different output powers through the gear adjustment mechanism 11-1 according to the specific conditions of the surgical process, which makes clinical operation more convenient.

[0100] In this embodiment, the gear adjustment mechanism 11-1 includes a cutting gear 11-11 and a fusion gear 11-12; the cutting gear 11-11 and the fusion gear 11-12 are linked together by a lever mechanism 11-13, so that the cutting gear 11-11 and the fusion gear 11-12 cannot be pressed at the same time. The cutting gear 11-11 and the fusion gear 11-12 cannot be pressed at the same time, which can ensure that no misoperation occurs during clinical use. In actual applications, technicians in this field can also design different mechanisms as needed to achieve a single operation selection of the cutting gear 11-11 and the fusion gear 11-12. The applicant does not give specific examples here, but they do not deviate from the scope of protection of this application.

[0101] refer to Figure 1-1 and Figure 2-1 , Figure 2-2 The tissue ablation, cutting and fusion system 900 also includes a temperature control component 401.

[0102] The temperature control component 401 includes a temperature acquisition system 40 - 1 and a data transmission system 40 - 2 ; the temperature data acquired by the temperature acquisition system 40 - 1 can be transmitted to the controller 42 via the data transmission system 40 - 2 .

[0103] Due to the design of the temperature control component 401, when the temperature collected by the temperature collection system 40-1 exceeds the set limit temperature value, it 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 will issue instructions to process the electric heating device 32, such as powering off the line 41, or adjusting 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 accidental damage to the tissue or accidental damage to the components caused by the electric heating device 32 being in a high temperature state for a long time.

[0104] refer to Figure 6 and Figure 7 The power source 500 is a battery 51, or a battery pack 52, or a host 53. The battery 51 or the battery pack 52 is small in size and light in weight, suitable for carrying outside, has low requirements for the power environment, and low-voltage power supply is safer. The host 53 can provide stable power supply for a long time, and is particularly suitable for large-scale operations with long operation time. Users can choose different power sources 500 according to different use environments and use requirements.

[0105] In this embodiment, the power supply 500 is a low-voltage power supply with an output voltage less than 24 V. Preferably, the output voltage of the power supply 500 is less than 12 V. The output voltage of the power supply 500 is a safe voltage less than 24 V, and even if an unexpected phenomenon such as leakage occurs during use, it will not cause accidental harm to the human body.

[0106] The power supply 500 is a DC pulse power supply 501. The DC 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 alternating changes between high level and low level, and keeps the electric heating device 32 in the periodic change of power-on heating and power-off to moderately cool down, so that in the process of heat being continuously conducted to the deep of tissues or organs, the temperature of the part where the heating device 32 contacts the tissues or organs is kept within a stable range and will not continue to rise, effectively avoiding accidental damage to the tissues or organs caused by excessive temperature, and making the clinical use process safer and more reliable.

[0107] Furthermore, the duty cycle of the DC pulse voltage output by the DC pulse power supply 501 can be adjusted according to the different thermal conductivity of the tissue or organ to be ablated, cut, or fused.

[0108] refer to Figure 6 In this embodiment, the tissue ablation, cutting and fusion system 900 further includes a prompt system 600. The prompt system 600 can prompt the operator of the use status of the instrument as needed, such as using different sounds to prompt different working states, using different lights to prompt the power status, using different patterns to prompt different working parts, etc.

[0109] The prompt system 600 may be a sound prompt device 61, a light prompt device 62, or an image prompt device 63. The applicant only lists the above three prompt devices, and those skilled in the art can design different prompt system structures as needed without departing from the protection scope of this application.

[0110] refer to Figure 5 and Figure 5-1 The tissue ablation, cutting and fusion system 900 also includes a smoke exhaust system 700; the smoke exhaust system 700 includes a smoke outlet 71, a smoke exhaust pipe 72 and a smoke inlet 73. The smoke outlet 71 of the smoke exhaust system 700 can be connected to a medical negative pressure source to timely extract the smoke generated during the operation out of the body, ensuring a clear surgical field of view and making the surgical process safer and more reliable.

[0111] refer to Figure 3 to Figure 4-1 The tissue ablation, cutting and fusion system 900 may also include a water supply / drainage system 800; the water supply / drainage system 800 includes a water outlet 81, a drain 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 water supply pipe. During the operation, the doctor may inject physiological saline or other solvents into the surgical site through the water supply / drainage system 800 according to the needs of the operation, or may promptly discharge blood or sewage from the surgical site through the water supply / drainage system 800 to ensure the smooth progress of the operation.

[0112] In this embodiment, the specific circuit connection method is as follows:

[0113] Positive electrode line: The positive electrode of the electric heating device 32 is connected to the conductive core rod 41-2 arranged 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 after being connected to the positive electrode of the connector female socket 11-22, it is connected to the positive electrode of the matching connector male socket 11-21, and then connected to the positive electrode of the power supply 500 through the cable 41-1 and the electrical interface 43-3.

[0114] 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 connector female socket 11-22 through the outer tube 33, connected to the negative electrode of the connector male socket 11-21 matching the connector female socket 11-22, and then connected to the negative electrode of the power supply 500 through the cable 41-1 and the electrical interface 43-3.

[0115] In this embodiment, the working current flows in through the positive electrode of the electrical interface 43-3, flows into the positive electrode of the connector male socket 11-21 through the cable 41-1, flows out through the connector male socket 11-21 and enters the positive electrode of the plug-in female socket 11-22, flows out from the plug-in female socket 11-22 and flows into the positive electrode of the electric heating device 32 through the conductive core rod 41-2, drives the electric heating device 32 to generate heat, and then flows out from the negative electrode of the electric heating device 32 and enters the far end of the outer tube 33, flows out through the outer tube 33 and enters the negative electrode of the plug-in female socket 11-22, flows out through the plug-in female socket 11-22 and enters the connector male socket 11-21, flows out through the connector male socket 11-21 and flows into the electrical interface 43-3 through the cable 41-1, and flows into the negative electrode of the power supply 500 through the electrical interface 43-3.

[0116] During clinical use, the power source 500 is connected to 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 pressed, and the gear adjustment mechanism 11-1 is connected to the controller 42. At this time, the circuit system 400 connects the power source 500 and the electric heating device 32, and the electric heating device 32 starts to heat up, ablating, cutting or fusing the tissue. After the operation is completed, the passive handle 12 is opened, the working surface 31 is opened, and the operation is completed. The surgical operation can be completed by selecting different tissue parts in turn, and the operation process is very simple.

[0117] During use, 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. When the acquired temperature value exceeds the temperature value set by the controller 42, the controller 42 cuts off the power to the line 41, or adjusts the current or voltage output by the power supply 500, etc., so as to achieve the control effect of lowering the working temperature of the working part 300, and effectively avoid accidental tissue damage or accidental damage to components caused by the electric heating device 32 being in a high temperature state for a long time.

[0118] In this embodiment, the distal end 111 and the proximal end 112 of the active handle 11 are two detachable parts, and the distal ends of the active handle 11 and the passive handle 12 are connected to the working part 300. The distal end 111 of the active handle 11 and the passive handle 12 are connected through the shaft assembly 200 to form a whole, forming a 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 contains the electric heating device 32 and the circuit 41, and does not contain electronic components such as capacitors, the electronic components such as the controller 42 and the electrical interface device 43 are all arranged at the proximal end 112, so the sterilization process is safer and the manufacturing cost of the detachable working end 901 is lower.

[0119] It should be noted that the structures disclosed and described herein can be replaced by other structures with the same effect, and the embodiments introduced in the present invention are not the only structures for implementing the present invention. Although the preferred embodiments of the present invention have been introduced and described herein, it is clear to those skilled in the art that these embodiments are only for illustration, and those skilled in the art can make numerous changes, improvements and substitutions without departing from the present invention. Therefore, the protection scope of the present invention should be defined in accordance with the spirit and scope of the claims attached to the present invention.

Claims

1. A tissue ablation, cutting and fusion system, characterized in that: A. The tissue ablation, cutting and fusion system (900) comprises a handle assembly (100), an axis assembly (200), a working part (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 via the shaft assembly (200); C. The active handle (11) comprises a gear adjustment mechanism (11-1), a circuit connection mechanism (11-2) and a housing (11-3); the gear adjustment mechanism (11-1) is arranged on the housing (11-3); the circuit connection mechanism (11-2) can realize the separation and connection of the circuit system (400) at the far end (111) and the near end (112) of the active handle (11); D. The working portion (300) comprises at least two working surfaces (31), and at least one of the working surfaces (31) is provided with an electric heating device (32); the electric heating device (32) is connected to the power source (500) via the circuit system (400); the opening and closing movements 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 circuit system (400) is connected to the power source (500) via the electrical interface device (43); F. The distal end (111) of the active handle (11) and the passive handle (12) are connected to the working part (300). 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), forming a detachable working end (901) of the tissue ablation, cutting and fusion system. The detachable working end (901) only contains the electric heating device (32) and the circuit (41). The electronic components are all arranged at the proximal end (112) of the active handle (11). During sterilization, only the detachable working end (901) needs to be sterilized, making the sterilization process safer.

2. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The circuit connection mechanism (11-2) comprises a male connector seat (11-21) and a female connector seat (11-22), wherein the male connector seat (11-21) and the female connector seat (11-22) are respectively arranged on the proximal end (112) and the distal end (111), and the male connector seat (11-21) and the female connector seat (11-22) realize the connection and disconnection of the circuit (41) in the active handle (11).

3. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The shell (11-3) comprises a distal shell (11-31) and a proximal shell (11-32).

4. The tissue ablation, cutting and fusion system according to claim 3, characterized in that: The distal shell (11-31) and the proximal shell (11-32) are connected together by means of a concave-convex snap fit, an interference fit, or a rotational connection.

5. The tissue ablation, cutting and fusion system according to claim 4, characterized in that: The distal shell (11-31) and the proximal shell (11-32) are connected together by means of a concave-convex snap fit; the distal shell (11-31) is provided with a mounting groove (11-31-1) and a positioning convex step (11-31-2), and the proximal shell (11-32) is provided with a slider (11-32-1) and a positioning groove (11-32-2); the slider (11-32-1) is embedded in the mounting groove (11-31-1) and can move back and forth along the mounting groove (11-31-1); when the positioning convex step (11-31-2) is embedded in the positioning groove (11-32-2), the distal shell (11-31) and the proximal shell (11-32) are connected and fixed.

6. The tissue ablation, cutting and fusion system according to claim 3, characterized in that: The housing (11-3) is also provided with a locking switch (11-33).

7. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The tissue ablation, cutting and fusion system (900) further comprises a temperature control component (401).

8. The tissue ablation, cutting and fusion system according to claim 7, characterized in that: The temperature control component (401) comprises a temperature acquisition system (40-1) and a data transmission system (40-2); the temperature data acquired by the temperature acquisition system (40-1) can be transmitted to the controller (42) via the data transmission system (40-2).

9. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: 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) via the circuit fixing mechanism (11-5).

10. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The shaft assembly (200) comprises 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.

11. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The gear adjustment mechanism (11-1) is connected to the controller (42) via the line (41).

12. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The gear adjustment mechanism (11-1) comprises a cutting gear (11-11) and a fusion gear (11-12); the cutting gear (11-11) and the fusion gear (11-12) are linked together via a lever mechanism (11-13), so that the cutting gear (11-11) and the fusion gear (11-12) cannot be pressed at the same time.

13. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: 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) respectively arranged on the active handle (11) and the passive handle (12).

14. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: At least one of the working surfaces (31) contains a protrusion (30) capable of squeezing liquid out of the tissue.

15. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The power source (500) is a battery (51) or a host (53).

16. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: 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 according to claim 1, characterized in that: The power supply (500) is a direct current pulse power supply (501).

18. The tissue ablation, cutting and fusion system according to claim 17, characterized in that: The duty cycle of the DC pulse voltage output by the DC pulse power supply (501) is adjustable.

19. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The tissue ablation, cutting and fusion system (900) further comprises a prompting system (600).

20. The tissue ablation, cutting and fusion system according to claim 19, characterized in that: The prompting system (600) is a sound prompting device (61), or a light prompting device (62), or an image prompting device (63).

21. The tissue ablation, cutting and fusion system according to claim 1, characterized in that: The tissue ablation, cutting and fusion system (900) further comprises a smoke exhaust 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 according to claim 1, characterized in that: 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 drainage pipe (82) and a water inlet (83).

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