WO2020011050A1 - Système d'ablation, de coupe et de fusion de tissu - Google Patents

Système d'ablation, de coupe et de fusion de tissu Download PDF

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Publication number
WO2020011050A1
WO2020011050A1 PCT/CN2019/094266 CN2019094266W WO2020011050A1 WO 2020011050 A1 WO2020011050 A1 WO 2020011050A1 CN 2019094266 W CN2019094266 W CN 2019094266W WO 2020011050 A1 WO2020011050 A1 WO 2020011050A1
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WO
WIPO (PCT)
Prior art keywords
trigger
cutting
tissue ablation
shaft
fusion
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Application number
PCT/CN2019/094266
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English (en)
Chinese (zh)
Inventor
周星
Original Assignee
周星
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 周星 filed Critical 周星
Publication of WO2020011050A1 publication Critical patent/WO2020011050A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/0091—Handpieces of the surgical instrument or device

Definitions

  • the invention relates to an electrosurgical instrument, particularly a surgical instrument used for tissue ablation, cutting and fusion used in surgery.
  • tissue ablation, cutting and fusion is a very important tissue processing process.
  • tissue ablation, cutting and fusion techniques electric heating tissue ablation is one of the important techniques. Protein modification to achieve tissue ablation, cutting and fusion processes.
  • the connection of the circuit usually includes two switches: a power switch and a gear selection switch.
  • a power switch When both are connected at the same time, the circuit is in the on state and the instrument is electrically heated The device started to heat up.
  • the heating device of the device is heated for a long time due to the power switch and the gear switch forgot to turn off or misoperation, on the one hand It is easy to cause damage to the instrument.
  • the instrument inadvertently touches flammable materials such as bed sheets and towels in the operating room, it is easy to cause a fire and has a very obvious hidden safety hazard.
  • the tissue ablation, cutting and fusion system 900 includes a handle assembly 100, a shaft assembly 200, a work section 300, a circuit system 400, and a power supply 500:
  • the handle assembly 100 includes a trigger assembly 11, a gear adjustment button 12, a shaft connection mechanism 13, and a housing 14; the trigger assembly 11, a gear adjustment button 12, and a shaft connection mechanism 13 are provided in the housing 14 on;
  • the shaft assembly 200 includes a shaft 21 and a connection assembly 22;
  • 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 proximal end of the shaft assembly 200 is connected to the handle assembly 100 through the shaft connection mechanism 13; the distal end of the shaft assembly 200 is connected to the working part 300; the electric heating device 32 is connected through the The circuit system 400 is connected to the power source 500.
  • the tissue ablation, cutting and fusion system of the present invention can turn on the trigger switch 42-1 only by triggering the trigger assembly 11 to apply working pressure to the working part 300 to heat the electric heating device 32 and misoperation It may cause accidental injury or safety hazard, making the clinical use process safer and more reliable.
  • the handle assembly 100 further includes a fixing mechanism 15; the trigger assembly 11 is fixedly mounted on the casing (14) through the fixing mechanism 15.
  • the trigger assembly 11 can be embedded or fixed in the installation groove of the fixing mechanism 5 and assembled into a whole body and then fixed on the casing 14. The assembly process is simpler and the fixing is more reliable.
  • the trigger assembly 11 includes a trigger 11-1, a rocker arm 11-2, and a slider 11-3; the trigger 11-1 is provided with a trigger shaft 11-1-1 and a rocker drive shaft 11-1-2;
  • the rocker arm 11-2 includes a rocker arm fulcrum 11-2-1, a movement chute 11-2-2, and a push block card slot 11-2-3; and the slider 11-3 includes a movement push block 11-3. -1.
  • a trigger portion 11-1-3 is provided on the trigger 11-1; when the trigger 11-1 moves toward the grip 14-1 of the housing 14, the trigger portion 11-1-3 touches When the trigger switch 42-1 is touched, the trigger switch 42-1 is turned on; when the trigger 11-1 moves away from the grip 14-1 of the housing 14, the trigger section 11-1- 3 Disengage the trigger switch 42-1, and the trigger switch 42-1 is turned off.
  • the gear adjustment button 12 is connected to the controller 42 through the line 41.
  • the doctor can select different output powers through the gear adjustment button 12 according to the specific conditions of the surgical process, which makes the clinical operation more convenient.
  • the gear adjustment button 12 includes a cutting gear 12-1 and a fusion gear 12-2; the cutting gear 12-1 and the fusion gear 12-2 are linked together by a lever mechanism 12-3, so that the cutting gear 12- 1 and fusion gear 12-2 cannot be pressed simultaneously.
  • the cutting gear 12-1 and the fusion gear 12-2 cannot be pressed at the same time, which can ensure that no misoperation occurs during clinical use.
  • the handle assembly 100 further includes a reset mechanism 16.
  • the reset mechanism 16 can automatically reset the trigger 11-1 through a reset force, which greatly improves the safety, convenience and comfort during use.
  • the reset mechanism 16 may be in various forms such as a torsion spring mechanism, or a spring mechanism, or an elastic body mechanism. Those skilled in the art can design various reset mechanisms according to needs, and set one or more of the reset mechanisms as required.
  • the reset mechanism 16 is installed in different parts of the instrument without departing from the protection scope of the present application.
  • the handle assembly 100 further includes a force limiting mechanism 17.
  • the force-limiting mechanism 17 can limit the working pressure transmitted to the working part 300 through the trigger assembly 11. When the force-limiting mechanism 17 acts, the operator applies the trigger 11-1 to the triggering mechanism 11-1
  • the maximum working pressure of the working part 300 is constant. Generally, during the ablation, cutting and fusion of soft tissue, the maximum working pressure can be limited to 100N or less. Of course, those skilled in the art can set the limit of the maximum working pressure defined by the force limiting mechanism 17 as needed, without departing from the protection scope of the present application.
  • the force-limiting mechanism 17 can be various forms of structures such as a spring force-limiting mechanism, an elastic body force-limiting mechanism, or a compression spring force-limiting mechanism. Those skilled in the art can also design other various types of force-limiting mechanisms. Without departing from the scope of protection of this application.
  • the trigger 11-1 moves toward the grip 14-1 of the housing 14 until the force limiting mechanism 17 is activated, and the trigger switch 42-1 can be activated, and the trigger switch 42-1 is connected to the trigger switch 42-1.
  • the gear adjustment button 12 Only in the on state, the gear adjustment button 12 can be closed and the circuit system 400 can be turned on, so that the tissue ablation, cutting and fusion system 900 can perform tissue ablation, cutting or fusion under a set working pressure.
  • the trigger switch 42-1 can be activated only when the force limiting mechanism 17 functions, the working pressure applied to the tissue by the doctor during surgery is constant, thereby realizing tissue ablation, cutting and fusion of the present invention.
  • the system needs to be under the set working pressure for tissue ablation, cutting or fusion.
  • the surgical effect is more stable, which effectively prevents accidental injuries that may be caused by misoperation, and blood vessels caused by different clamping forces used by different surgeons. Differences in clinical effects such as closure, tissue fusion, and cutting are more safe and effective. That is, a tissue ablation, cutting, and fusion system of the present invention can only start tissue ablation, cutting, and fusion under a constant clamping force, avoiding operations. The effect of the use caused by different forces.
  • the shaft assembly 200 further includes a knob 23; the knob 23 can drive the shaft 21 to rotate.
  • the shaft 21 includes an inner rod 21-1 and an outer rod 21-2; the working surfaces 31 are connected to the distal ends of the inner rod 21-1 and the outer rod 21-2, respectively; when the inner rod 21- 1 When the proximal end is moved, the working surface 31 is closed; when the inner rod 21-1 is moved toward the far end, the working surface 31 is opened; turning the knob 23 can drive the inner rod 21-1 and The outer rod 21-2 rotates, and further drives the working surface 31 to perform a rotary motion.
  • the working surface 31 needs to be rotated to an appropriate position according to the different parts of the tissue that need to be processed.
  • the shaft 21 can be driven by the knob 23 to move the working surface 31 to Right direction and location.
  • the electrical interface device 43 is an elastic electrical interface device 431.
  • the elastic electrical interface device 431 includes a conductive connector 43-1, an elastic conductive mechanism 43-2, and an electrical interface 43-1.
  • One end of the conductive connector 43-1 passes through the connector.
  • the line 41 is connected to the electric heating device 32, and the other end is connected to the elastic conductive mechanism 43-2; the other end of the elastic conductive mechanism 43-2 is connected to the electrical interface 43-3, and the electrical The interface 43-3 is connected to the power supply 500.
  • the conductive joint 43-1 includes a rotor 43-1-1 and a stator 43-1-2; the rotor 43-1-1 can rotate; the distal end of the rotor 43-1-1 and the shaft The proximal ends of 21 are connected together.
  • the rotor 43-1-1 can rotate synchronously; the proximal end of the stator 43-1-2 and the far end of the elastic conductive mechanism 43-2 Ends are connected together.
  • the line 41 connecting the rotor 43-1-1 and the shaft 21 also rotates synchronously to connect the The synchronization between the conductive joint 43-1 and the line 41 at the rear end of the shaft 21 can avoid wire breakage or loosening of solder joints that may be caused by twisting of the line 41.
  • the elastic conductive mechanism 43-2 is a conductive mechanism that can be elastically deformed by an external force while keeping the circuit open.
  • the elastic conductive mechanism 43-2 can be elastically deformed under the action of an external force. Therefore, when the shaft 21 is translated to the proximal end, the shaft 21 applies pressure to the elastic conductive mechanism 43-2.
  • the elastic conductive mechanism 43-2 is compressed and deformed.
  • the pressure applied by the shaft 21 to the elastic conductive mechanism 43-2 is gradually released, and can continue under the effect of the elastic restoring force.
  • the connection state of the conductive joint 43-1 and the shaft 21 is maintained, and stable power supply of the circuit system 400 is maintained.
  • the elastic conductive mechanism 43-2 undergoes elastic deformation and performs a reciprocating action, which overcomes the fatigue fracture or loosening of the solder joint caused by the constant expansion and contraction of the current wire when the current wire is connected. Not only maintain the good maneuverability of the instrument, but also improve the reliability of the circuit.
  • 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, and is suitable for carrying around. It has low requirements on the power environment and is more secure with low voltage power supply. Large-scale surgery; the user can select different power sources 500 according to different use environments and requirements.
  • the tissue ablation, cutting and fusion system 900 further includes a prompting system 600.
  • the prompting system 600 may prompt the operator of the use state of the instrument according to needs, such as using different sounds to indicate different working conditions, using different lights to indicate the status of the power supply, using different patterns to indicate different working parts, and the like.
  • the prompting system 600 is a sound prompting device 61, a light prompting device 62, or an image prompting device 63.
  • the applicant only lists the above three types of prompting devices, and those skilled in the art can design different prompting system structures according to requirements without departing from the scope of protection of the present application.
  • the tissue ablation, cutting and fusion system 900 further 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, and the smoke generated during the surgery is extracted from the body in time to ensure the clarity of the surgical field of vision and the operation process is safer and more reliable.
  • the tissue ablation, cutting and fusion system 900 further includes a water supply / drainage system 800; the water supply / drainage system 800 includes a water outlet 81, a drainage pipe 82, and a water inlet 83.
  • the drainage pipe 82 of the water supply / drainage system 800 may be either a drainage pipe or a water supply pipe.
  • 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 surgery, and can also timely remove blood or sewage from the surgical site through the water supply / drainage system 800. To ensure smooth operation.
  • the power supply 500 is connected to the circuit system 400 through the electrical interface 43-3, the power switch is turned on, and the trigger 11-1 is moved toward the grip 14-1 to drive the power supply.
  • the inner rod 21-1 is moved to the proximal end, the working surface 31 is closed, the working part 300 grips the tissue to be treated and continues to pull the trigger 11-1 until the force limiting mechanism 17 comes into effect, Turn on the trigger switch 42-1, and select the cutting gear 12-1 or the fusion gear 12-2 of the gear adjustment button 12 according to the surgical situation, and the gear adjustment button 12 turns on the controller 42.
  • the circuit system 400 turns on the power supply 500 and the electric heating device 32, and the electric heating device 32 starts to generate heat and ablates, cuts, or fuses the tissue.
  • the elastic conductive mechanism 43-2 is elastically deformed by the thrust of the inner rod 21 to maintain stable power supply of the circuit system 400.
  • the trigger 11-1 is released, the trigger 11-1 is reset by the reset mechanism 16, the trigger switch 42-1 is turned off, and the electric heating device 32 stops working and does not continue.
  • the fever the inner rod 21-1 moves to the distal end, the working surface 32 is opened, and a tissue processing process is completed.
  • the knob 23 only needs to be rotated.
  • the knob 23 drives the shaft 21 to rotate, and the working surface 32 connected to the shaft 21 is rotated accordingly.
  • the tissue ablation, cutting and fusion system of the present invention includes a handle assembly 100, a shaft assembly 200, a work section 300, a circuit system 400, and a power source 500.
  • the controller 42 of the circuit system 400 is provided with a trigger switch 42-1.
  • the trigger 11-1 is provided with a trigger portion 11-1-3; when the trigger 11-1 moves toward the grip 14-1 of the housing 14 until the force limiting mechanism 17 acts, Only when the triggering part 11-1-3 touches the triggering switch 42-1, the triggering switch 42-1 is turned on; when the trigger 11-1 moves away from the grip 14-1 of the housing 14 At that time, the trigger portion 11-1-3 is disengaged from the trigger switch 42-1, and the trigger switch 42-1 is turned off.
  • the trigger switch 42-1 can be activated only when the force limiting mechanism 17 functions, so that the tissue ablation, cutting and fusion system of the present invention can perform tissue ablation, cutting or fusion under a set working pressure.
  • the surgical effect is more stable, effectively preventing accidental injuries that may be caused by misoperation, and different clinical effects such as blood vessel closure, tissue fusion, and cutting caused by different clamping forces used by different surgeons, which are safer and more effective, that is,
  • the tissue ablation, cutting and fusion system of the present invention can start tissue ablation, cutting and fusion only under a constant clamping force, thereby avoiding the difference in the use effect of the operator due to different forces.
  • FIG. 1 is a schematic diagram of the three-dimensional structure of the working surface of the tissue ablation, cutting and fusion system of the present invention when it is opened.
  • FIG. 1-1 is a schematic view of the three-dimensional structure when the working surface of FIG. 1 is closed.
  • FIG. 2 is a front view of FIG. 1.
  • Fig. 2-1 is a sectional view taken along the line A-A in Fig. 2.
  • Fig. 2-2 is an enlarged view of a portion B in Fig. 2-1.
  • Fig. 3 is a front view of Fig. 1-1.
  • Fig. 3-1 is a sectional view taken along the line C-C in Fig. 3.
  • FIG. 4 is a schematic structural diagram of a trigger assembly of a tissue ablation, cutting and fusion system of the present invention.
  • FIG. 5 is a schematic structural diagram of a shaft assembly of a tissue ablation, cutting and fusion system of the present invention.
  • Fig. 5-1 is a sectional view taken along the line D-D in Fig. 5.
  • FIG. 6 is a schematic diagram of the three-dimensional structure of the tissue ablation, cutting and fusion system of the present invention including a water supply / drainage system.
  • FIG. 6-1 is an enlarged view at E in FIG. 6.
  • FIG. 7 is a schematic diagram of the three-dimensional structure of the tissue ablation, cutting and fusion system of the present invention including a clamping forceps.
  • FIG. 7-1 is an enlarged view at F in FIG. 7.
  • FIG. 8 is a schematic diagram of the three-dimensional structure of the tissue ablation, cutting and fusion system of the present invention with a battery and a battery pack.
  • FIG. 9 is a schematic diagram of the three-dimensional structure of the tissue ablation, cutting and fusion system of the present invention with a host.
  • 100 is a handle assembly
  • 200 is a shaft 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
  • 900 is a tissue ablation of the present invention, Cutting and fusion system.
  • 11 is a trigger assembly
  • 12 is a gear adjustment button
  • 13 is a shaft connection mechanism
  • 14 is a housing
  • 15 is a fixing mechanism
  • 16 is a reset mechanism
  • 17 is a force limiting mechanism.
  • 11-1 is the trigger, 11-2 is the rocker, 11-3 is the slider; 11-1-1 is the trigger shaft, 11-1-2 is the rocker drive shaft, 11-1-3 is the trigger, 11 -2-1 is the fulcrum of the rocker arm, 11-2-2 is the moving chute, 11-2-3 is the pushing block card slot, 11-3-1 is the moving pushing block, 11-3-2 is the sliding convex step, 11-3-3 is the working boss.
  • 12-1 is the cutting gear
  • 12-2 is the fusion gear
  • 12-3 is the lever mechanism.
  • 15-1 is the positioning chute.
  • 17-1 is a spring force limiting mechanism.
  • 21 is a shaft
  • 22 is a connecting component
  • 23 is a knob
  • 21-1 is the inner rod and 21-2 is the outer rod.
  • 31 is a working surface
  • 32 is an electric heating device
  • 33 is a rotating shaft
  • 31-1 is a distal working surface
  • 31-2 is a proximal working surface
  • 301 is a first working part
  • 302 is a second working part.
  • 41-1 is a conductive core rod
  • 42-1 is a trigger switch
  • 43-1 is a conductive joint
  • 43-2 is an elastic conductive mechanism
  • 43-3 is an electrical interface
  • 43-1-1 is a rotor
  • 43-1-2 Is the stator; brushes 43-11.
  • 51 is a battery
  • 52 is a battery pack
  • 53 is a host.
  • 71 is a smoke outlet
  • 72 is a smoke exhaust pipe
  • 73 is a smoke inlet
  • the tissue ablation, cutting and fusion system 900 of this embodiment includes a handle assembly 100, a shaft assembly 200, a work section 300, a circuit system 400, a power supply 500, a prompting system 600, and a smoke exhaust system 700.
  • the handle assembly 100 includes a trigger assembly 11, a gear adjustment button 12, a shaft connection mechanism 13 and a housing 14, a fixing mechanism 15, a reset mechanism 16, and a force limiting mechanism 17.
  • the trigger assembly 11 is fixedly mounted on the casing (14) through the fixing mechanism 15, and a gear adjustment button 12 and a shaft connection mechanism 13 are provided on the casing 14.
  • the shaft assembly 200 includes a shaft 21, a connection assembly 22 and a knob 23.
  • the working part 300 includes two working surfaces 31, and one of the working surfaces 31 is provided with an electric heating device 32.
  • the circuit system 400 includes a line 41, a controller 42, and an electrical interface device 43.
  • the circuit system 400 is connected to the power source 500 through the electrical interface device 43.
  • the controller 42 includes a trigger switch 42-1; the movement of the trigger assembly 11 can turn on or off the trigger development 42-1.
  • the proximal end of the shaft assembly 200 is connected to the handle assembly 100 through the shaft connection mechanism 13; the distal end of the shaft assembly 200 is connected to the working part 300; the electric heating device 32 is connected to the circuit system 400 is connected to the power supply 500.
  • the gear adjustment button 12 includes a cutting gear 12-1 and a fusion gear 12-2; the cutting gear 12-1 and the fusion gear 12-2 are linked together by a lever mechanism 12-3, so that The cutting position 12-1 and the fusion position 12-2 cannot be pressed simultaneously.
  • the cutting gear 12-1 and the fusion gear 12-2 cannot be pressed at the same time, which can ensure that no misoperation occurs during clinical use.
  • the handle assembly 100 includes a reset mechanism 16.
  • the reset mechanism 16 is a combination of a torsion spring mechanism 16-1 and a spring mechanism 16-2.
  • the torsion spring mechanism 16-1 is provided at the trigger shaft 11-1-1, and the spring mechanism 16-2 is provided at the proximal end of the positioning slide 15-1 of the fixing mechanism 15 when the When the trigger 11-1 is described, the torsion spring mechanism 16-1 is compressed, the inner rod 21-1 is moved to the proximal end, and the spring mechanism 16-2 is compressed and deformed.
  • the trigger 11-1 is released Under the action of the torsion spring mechanism 16-1 and the spring mechanism 16-2, the inner rod 21-1 moves to the distal end, and the trigger 11-1 is automatically reset.
  • the handle assembly 100 includes a force limiting mechanism 17.
  • the force-limiting mechanism 17 can limit the working pressure transmitted to the working part 300 through the trigger assembly 11.
  • the force-limiting mechanism 17 acts, the operator applies the trigger 11-1 to the triggering mechanism 11-1
  • the maximum working pressure of the working part 300 is constant. Generally, during the ablation, cutting and fusion of soft tissue, the maximum working pressure can be limited to 100N or less.
  • those skilled in the art can set the limit of the maximum working pressure defined by the force limiting mechanism 17 as needed, without departing from the protection scope of the present application.
  • the trigger 11-1 is moved toward the grip 14-1 of the housing 14 until the force limiting mechanism 17 acts, and the trigger switch 42-1 can be activated.
  • the gear adjustment button 12 can be closed only when the switch 42-1 is turned on, and the circuit system 400 is turned on, so that the tissue ablation, cutting and fusion system 900 can perform tissue ablation, cutting or Integration. Because the trigger switch 42-1 can be activated only when the force limiting mechanism 17 acts, it ensures that the working pressure applied to the tissue by the doctor during surgery is constant, thereby avoiding different operators from applying pressure to the tissue.
  • the force limiting mechanism 17 is a spring force limiting mechanism 17-1, and the spring force limiting mechanism 17-1 is disposed at the proximal end of the working boss 11-3-3 of the slider 11-3.
  • the working boss 11-3-3 presses the spring force limiting mechanism 17-1, and the spring force limiting mechanism 17-1 is elastically deformed to reach The effect of limiting the amount of work pressure.
  • the shaft assembly 200 includes a knob 23, which can drive the knob 23
  • the shaft 21 performs a rotational movement.
  • the shaft 21 includes an inner rod 21-1 and an outer rod 21-2; the working surfaces 31 are connected to the distal ends of the inner rod 21-1 and the outer rod 21-2, respectively; when the inner rod 21- 1 When the proximal end is moved, the working surface 31 is closed; when the inner rod 21-1 is moved toward the distal end, the working surface 31 is opened.
  • Turning the knob 23 can drive the inner rod 21-1 and the outer rod 21-2 to rotate, and then drive the working surface 31 to perform a rotational movement.
  • the electrical interface device 43 is an elastic electrical interface device 431, and the elastic electrical interface device 431 includes a conductive joint 43-1, an elastic conductive mechanism 43-2, and an electrical interface 43-3.
  • One end of the conductive joint 43-1 is connected to the electric heating device 32 through the line 41, and the other end is connected to the elastic conductive mechanism 43-2; the other end of the elastic conductive mechanism 43-2 is connected to the electrical interface.
  • 43-3 are connected together, and the electrical interface 43-3 is connected to the power supply 500.
  • the line 41 connecting the rotor 43-1-1 and the shaft 21 also rotates synchronously to connect the The synchronization between the conductive joint 43-1 and the line 41 at the rear end of the shaft 21 can prevent the wires from being broken or the solder joints loosening or the joints from heating due to the distortion of the line 41.
  • the elastic conductive mechanism 43-2 is a conductive mechanism that can be elastically deformed under the action of an external force while keeping the circuit open.
  • the elastic conductive mechanism 43-2 can be elastically deformed under the action of an external force. Therefore, when the shaft 21 is translated to the proximal end, the shaft 21 applies pressure to the elastic conductive mechanism 43-2.
  • the elastic conductive mechanism 43-2 is compressed and deformed.
  • the pressure applied by the shaft 21 to the elastic conductive mechanism 43-2 is gradually released, and can continue under the effect of the elastic restoring force.
  • the connection state of the conductive joint 43-1 and the shaft 21 is maintained, and stable power supply of the circuit system 400 is maintained.
  • the elastic conductive mechanism 43-2 is a coil spring mechanism.
  • the elastic conductive mechanism 43-2 may also be various spring mechanisms such as a tower spring mechanism or a compression spring mechanism. The applicant does not list them here.
  • Those skilled in the art also design the elastic conductive mechanism 43-2 into other various elastic structures, such as an elastomer structure, without departing from the scope of protection in the art.
  • the power source 500 may be a battery 51, a battery pack 52, or a host 53.
  • the battery 51 or the battery pack 52 is small in size and light in weight, and is suitable for carrying around. It has low requirements on the power environment and is more secure with low voltage power supply. Large-scale surgery; the user can select different power sources 500 according to different use environments and requirements.
  • the specific circuit connection mode is as follows:
  • the positive electrode of the electric heating device 32 is connected to the line 41 provided in the core of the inner rod 21-1. In order to enhance the strength of the inner rod 21-1 during translation and clamping, this part
  • the line 41 is provided as a rigid conductive core rod 41-1.
  • An insulating layer 44 is provided between the conductive core rod 41-1 and the inner rod 21-1.
  • One end of the conductive core rod 41-1 is connected to the The other end of the positive electrode of the electric heating device 32 is connected to the positive electrode of the rotor 43-1-1, and the other end of the positive electrode of the rotor 43-1-1 and the positive electrode of the stator 43-1-2 are connected by a brush.
  • the other end of the positive electrode of the stator 43-1-2 is connected to the positive electrode of the elastic conductive mechanism 43-2, and the other end of the positive electrode of the elastic conductive mechanism 43-2 is connected to the electrical interface.
  • the positive electrode of 43-3 is connected to the positive electrode of the power supply 500 via the electrical interface 43-3.
  • Negative electrode line The negative electrode of the electric heating device 32 is connected to the distal end of the conductive inner rod 21-1.
  • An insulating layer 44 is provided between the inner rod 21-1 and the outer rod 21-2.
  • the proximal end of the inner rod 21-1 is connected to the negative electrode of the rotor 43-1-1 via the line 41, and the other end of the negative electrode of the rotor 43-1-1 and the stator 43-1-
  • the negative electrode of 2 is connected by means of a brush.
  • the other end of the negative electrode of the stator 43-1-2 is connected to the negative electrode of the elastic conductive mechanism 43-2.
  • the other end of the negative electrode of the elastic conductive mechanism 43-2 is One end is connected to the negative electrode of the electrical interface 43-3, and is connected to the negative electrode of the power supply 500 via the electrical interface 43-3.
  • the working current flows in through the positive electrode of the electrical interface 43-3, and flows through the elastic conductive mechanism 42 into the stator 43-1-2 through the positive electrode of the stator 43-1-2.
  • the stator 43-1-2 flows out, it flows into the rotor 43-1-1 through the positive electrode of the rotor 43-1-1, and flows out from the rotor 43-1-1 from the conductive core 41
  • the proximal end of -1 flows into the conductive core rod 41-1, flows through the conductive core rod 41-1, enters the electric heating device 32 from the positive electrode of the electric heating device 32, and drives the electric heating device 32
  • the heat is generated, and the current then flows out from the negative electrode of the electric heating device 32 and enters the distal end of the inner rod 21-1, flows through the inner rod 21-1, and flows out from the proximal end of the inner rod 21-1.
  • the elastic conductive mechanism 43-2 flows into the electrical interface 43-3 from the distal end of the elastic conductive mechanism 43-2 after flowing through the elastic conductive mechanism 43-2, and flows into the electrical interface 43-3 through the electrical interface 43-3.
  • the negative electrode of the power supply 500 is
  • the tissue ablation, cutting and fusion system of this embodiment includes a prompting system 600.
  • the prompting system 600 may prompt the operator of the use state of the instrument according to needs, such as using different sounds to indicate different working conditions, using different lights to indicate the status of the power supply, using different patterns to indicate different working parts, and the like.
  • the prompting system 600 in the present embodiment shows three prompting devices: a sound prompting device 61, a light prompting device 62, and an image prompting device 63.
  • a sound prompting device 61 a sound prompting device 61
  • a light prompting device 62 a light prompting device 62
  • an image prompting device 63 a prompting device 63
  • Those skilled in the art can design different prompting system structures according to requirements without departing from the scope of protection of this application.
  • the tissue ablation, cutting and fusion system 900 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, and the smoke generated during the surgery is extracted from the body in time to ensure the clarity of the surgical field of vision and the operation process is safer and more reliable.
  • the tissue ablation, cutting and fusion system of the present invention may further include a water supply / drainage system 800.
  • the water supply / drainage system 800 includes a water outlet 81, a drainage pipe 82 and a water inlet 83.
  • the drainage pipe 82 of the water supply / drainage system 800 may be either a drainage pipe or a water supply pipe.
  • 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 surgery, and can also timely remove blood or sewage from the surgical site through the water supply / drainage system 800.
  • the water supply / drainage system 800 can also be used as the smoke exhaust system 700, and the smoke generated during the surgery is discharged from the body in time to ensure the clarity of the surgical field of vision.
  • the power supply 500 is connected to the circuit system 400 through the electrical interface 43-3, the power switch is turned on, and the trigger 11-1 is moved toward the grip 14-1 to drive the power supply.
  • the inner rod 21-1 is moved to the proximal end, the working surface 31 is closed, the working part 300 grips the tissue to be treated and continues to pull the trigger 11-1 until the force limiting mechanism 17 comes into effect, Turn on the trigger switch 42-1, and select the cutting gear 12-1 or the fusion gear 12-2 of the gear adjustment button 12 according to the surgical situation, and the gear adjustment button 12 turns on the controller 42.
  • the circuit system 400 turns on the power supply 500 and the electric heating device 32, and the electric heating device 32 starts to generate heat and ablates, cuts, or fuses the tissue.
  • the trigger 11-1 moves toward the grip 14-1 of the housing 14 until the force limiting mechanism 17 acts, and the triggering portion 11-1-3 does not touch the trigger
  • the trigger switch 42-1 is turned on; when the trigger 11-1 moves away from the grip 14-1 of the housing 14, the trigger portion 11-1-3 is disengaged
  • the trigger switch 42-1 is turned off. Because the trigger switch 42-1 can be activated only when the force limiting mechanism 17 functions, so that the tissue ablation, cutting and fusion system of the present invention can perform tissue ablation, cutting or fusion under a set working pressure.
  • the surgical effect is more stable, effectively preventing accidental injuries that may be caused by misoperation, and different clinical effects such as blood vessel closure, tissue fusion, and cutting caused by different clamping forces used by different surgeons, which are more safe and effective, that is
  • the tissue ablation, cutting and fusion system of the present invention can start tissue ablation, cutting and fusion only under a constant clamping force, thereby avoiding the difference in the use effect of the operator due to different forces.
  • the closing of the working surface 31 is achieved by translation of one working surface 31 to another working surface 31.
  • the two working surfaces 31 may be closed by rotating the working surfaces 31 about a rotation axis 33.
  • the working part 300 includes a first working part 301 and a second working part 302; a proximal end of the first working part 301 is connected to a distal end of the inner rod 21-1, and the second working part 302 The proximal end is connected to the distal end of the outer rod 21-2.
  • the first working part 301 is driven to rotate about the rotation shaft 33, and the first work
  • the part 301 and the second working part 302 are closed.
  • the working part 300 is very small in the closed state, and can enter the abdominal cavity through a small channel, and then open the working part 300 for surgical operation, which is particularly suitable for various endoscopic minimally invasive surgery. Use.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un système d'ablation, de coupe et de fusion de tissu, comprenant un ensemble poignée, un ensemble arbre, une partie de travail, un système de circuit et une alimentation électrique. Un dispositif de commande du système de circuit est pourvu d'un commutateur de déclenchement. Un déclencheur est pourvu d'une partie déclenchement ; lorsque la gâchette se déplace vers la direction d'une poignée d'un boîtier jusqu'à ce qu'un mécanisme de limitation de force agit, la partie déclenchement touche le commutateur de déclenchement, et le commutateur de déclenchement est activé ; lorsque le déclencheur s'éloigne de la direction de la poignée du boîtier, la partie déclenchement est séparée du commutateur de déclenchement, et le commutateur de déclenchement est éteint. Le commutateur de déclenchement peut être activé uniquement lorsque le mécanisme de limitation de force agit, de telle sorte que le système d'ablation, de coupe, et de fusion de tissu de la présente invention a besoin d'effectuer une ablation, une coupe ou une fusion de tissu sous une pression de travail définie, et l'effet chirurgical est plus stable. La lésion accidentelle qui peut être provoquée par un mauvais fonctionnement, et les différences d'effet clinique de la fermeture de vaisseau sanguin, de la fusion tissulaire, de la coupe et autres provoquées par différentes forces de serrage utilisées par différents chirurgiens sont efficacement empêchées. Le système est plus sûr et plus efficace.
PCT/CN2019/094266 2018-07-07 2019-07-01 Système d'ablation, de coupe et de fusion de tissu WO2020011050A1 (fr)

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CN201810739927.5 2018-07-07
CN201810739927.5A CN110680497A (zh) 2018-07-07 2018-07-07 一种组织消融、切割及融合系统

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CN113116431A (zh) * 2021-04-14 2021-07-16 宁德市闽东医院 一种腹腔镜下疝气手术专用针
CN113768615B (zh) * 2021-09-18 2023-09-22 苏州赛纳思医疗技术有限公司 一种消融导管
CN118021421A (zh) * 2021-11-18 2024-05-14 海杰亚（北京）医疗器械有限公司 消融钳

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CN101480352A (zh) * 2009-02-09 2009-07-15 陈贤贵 一种枪型多功能切割器
CN107397586A (zh) * 2013-03-11 2017-11-28 柯惠有限合伙公司 电外科器械

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Publication number Priority date Publication date Assignee Title
US5904681A (en) * 1997-02-10 1999-05-18 Hugh S. West, Jr. Endoscopic surgical instrument with ability to selectively remove different tissue with mechanical and electrical energy
CA2827695C (fr) * 2013-09-20 2021-02-16 Leonard Ineson Crayon electrochirurgical reglable
CN209301302U (zh) * 2018-07-07 2019-08-27 广州迪克医疗器械有限公司 一种组织消融、切割及融合系统

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN101480352A (zh) * 2009-02-09 2009-07-15 陈贤贵 一种枪型多功能切割器
CN107397586A (zh) * 2013-03-11 2017-11-28 柯惠有限合伙公司 电外科器械

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