41 results about "Electrosurgical unit" patented technology

An apparatus for performing a medical procedure including an electrosurgical unit (10) for generating radiofrequency energy, an interventional wire (2, 2', 2'', 2''') including a distal tip portion (17) configured to deliver the radiofrequency energy to tissue during the medical procedure and an activator (7) to activate delivery of the radiofrequency energy from the electrosurgical unit (10) to the interventional wire (2, 2', 2'', 2'''). The distal tip portion (17) of the interventional wire (2) includes a core wire in a tubular structure. A distal tip structure or element at the end of the core wire delivers the radiofrequency energy to tissue.

1. Name of the product in this design: High-frequency electrosurgical unit (Type A). 2. Intended use of this design: for soft tissue resection and coagulation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

An electrosurgical unit configured to regulate a RF input signal applied to an electrosurgical device, the electrosurgical unit including a PWM circuit to produce a DC voltage responsive to a control signal; an RF waveform generator configured to generate an RF waveform based at least in part on the DC voltage; a transformer configured to transform the RF waveform to the RF input signal in a forward direction across the isolation barrier and transform a leakage current to a feedback current in a reverse direction across the isolation barrier; and a control circuit configured to generate the control signal based at least in part on the first input signal and the second input signal, the control signal controlling a pulse width modulation of the PWM circuit to produce the RF input signal.

The present invention relates to a novel technique by which the length of an electrosurgical unit blade coming into direct contact with the skin of a patient can be easily adjusted, and is a technique related to a locking member enabling the length of a blade to be adjusted. Specifically, the locking member of the present invention enables the length of a blade to be adjusted using the principle of a lever.

The invention relates to the technical field of medical instruments, in particular to an attractable electrocoagulation and electroresection electrosurgical pencil. Comprising a scalpel head assembly, an electrode assembly, a suction assembly and a handle assembly, the electrode assembly comprises a control panel and an electrode tube, the control panel is integrated in the handle assembly, a control button is further arranged on the handle assembly, and the electrode tube is arranged in the handle assembly and extends in the axial direction of the handle assembly. The extending end of the electrode tube is the working end of the handle assembly, the tool bit assembly is detachably connected to the extending end of the electrode tube, and the suction assembly is arranged at the non-working end of the handle assembly and communicated with the electrode tube through a suction pipeline. The control panel is connected with a power line, the electrode assembly is electrically connected with an external electrotome main machine through the power line, and the electrode tube is communicated with an external negative pressure suction device through a suction pipeline. The device can realize efficient electrocoagulation and electroresection, and also has excellent anti-clogging characteristic.

A high-frequency electrosurgical unit for medical use includes an execution unit, a control unit, and a first suction tube. The execution unit has a blade body and a blade tip. The front end of the first suction tube is configured as an air inlet. At least one mounting portion is obliquely arranged on the first suction tube, and the mounting portion has a cavity. In this invention, by connecting the front end of the cavity to the air inlet, the execution unit is inserted from the rear end of the cavity, allowing the front end of the blade tip to extend exposed to the outside of the air inlet. This brings the air inlet closer to the blade tip, enabling the smoke to be drawn into the first suction tube immediately upon generation. Furthermore, by enclosing part of the blade body within the first suction tube and the other part within the mounting portion, the exposed blade body is reduced, thereby improving safety during use and achieving two benefits.

This utility model discloses a multi-functional electrosurgical unit with adjustable length and water injection capability. The distal end of the delivery tube is fixedly connected to the I-blade body via a connecting tube, and the proximal end of the delivery tube is fixed to the main handle. The proximal end of the O-blade body is fixedly connected to the distal end of the inner sheath tube, which is sleeved outside the delivery tube. The proximal end of the inner sheath tube is fixedly connected to the inner sheath handle, and the outer sheath tube is sleeved outside the inner sheath tube. The distal end of the outer sheath tube is limited by a ceramic head, and the proximal end of the outer sheath tube is fixedly connected to the outer sheath handle. The relative positions of the outer sheath handle and the main handle can be moved to adjust the overall blade extension length. The relative positions of the inner and outer sheath handles can also be moved to switch between the O-blade and I-blade functions. This solution can meet the surgeon's needs for different electrosurgical unit lengths during surgery and provide multiple functions in a single electrosurgical unit.

An apparatus for performing a minimally invasive medical procedure. The apparatus includes an elongated flexible conductive element, an activator unit, an interventional wire, and an accessory connector. The activator unit is connected to the elongated flexible conductive element and configured to selectively activate the delivery of radiofrequency energy. The interventional wire is electrically connected to the activator unit and configured to deliver radiofrequency energy during the minimally invasive medical procedure. The accessory connector is coupled to the elongated flexible conductive element and configured to connect the elongated flexible conductive element to an electrosurgical unit to deliver continuous, sinusoidal, low-amplitude alternating electrical current from the electrosurgical unit to the elongated flexible conductive element and to the interventional wire. The activator unit is selectively activatable to only deliver the continuous, sinusoidal, low-amplitude alternating electrical current from the electrosurgical unit to the interventional wire.

The utility model discloses a splashproof protective cover for surgical electric knife, including the loop and transparent cover cloth, loop outer wall is equipped with several transparent skeletons, and the skeleton is along the loop circumference interval distribution, and the cover cloth covers fixed on the skeleton and forms the protective cover, and the loop inner wall is equipped with the screw thread, and the loop sleeve joint is in the electric knife handle lower extreme with its screw thread connection, and the electric knife end projects the protective cover. Compared with the prior art, the utility model is easy to install, can effectively prevent liquid splash in the use surgical electric knife, and has smaller influence to the operation operation.

An apparatus for performing a medical procedure including an electrosurgical unit for generating radiofrequency energy, an interventional wire including a distal tip portion configured to deliver the radiofrequency energy to tissue during the medical procedure and an activator to activate delivery of the radiofrequency energy from the electrosurgical unit to the interventional wire. The distal tip portion of the interventional wire includes a core wire in a tubular structure. A distal tip structure or element at the end of the core wire delivers the radiofrequency energy to tissue.

An electrosurgical system having an electrosurgical device, an accessory charging circuit, and an electrosurgical unit is disclosed. The electrosurgical device is operable in at least one of a monopolar mode and a bipolar mode. The electrosurgical unit electrically is coupled to the electrosurgical device and the accessory charging circuit. The electrosurgical unit provides one of a monopolar RF energy signal and a bipolar RF energy signal to the electrosurgical device corresponds with an activated mode and a bipolar signal to the accessory charging circuit.

Various examples of the disclosed subject matter include systems and methods of controlling a flow rate of a smoke evacuation system. In one example, the smoke evacuation system includes an electrosurgical unit (ESU) to provide power to an electrosurgical tool within a surgical site. A monitoring device measures one or more electrical parameters from the electrosurgical tool, and a controller estimates an amount of smoke generated within the surgical site based on the electrical parameters. The controller sets a flow rate of a suction device to remove gases within the surgical site. The flow rate of the generated gases removed is based on the estimated amount of smoke generated. The controller also controls a flow rate of insufflation gases generated by an insufflation device, where the flow rate of the insufflation gases is substantially equal to the flow rate of the gases generated by the suction device. Other systems and methods are disclosed.

The invention discloses a bipolar electrotome tissue closure judgment method and system, and belongs to the technical field of high-frequency surgical instruments.The method comprises the steps that firstly, voltage and current signals and the temperature of an electrode working end are collected, instantaneous parameters are calculated through Hilbert transformation, and temperature compensation is conducted; identifying and grading three types of interference caused by saline water scouring, and adaptively selecting moving average, wavelet threshold or Kalman filtering according to grades; then extracting a multi-dimensional feature fusion interference level construction vector, and inputting the vector into an extreme gradient lifting model to obtain a tissue closing probability; and finally comparing with a dynamic threshold value, and controlling the energy output of the electrotome. The matching system comprises a signal acquisition module, a signal processing module, an intelligent decision-making module and an energy control module. The problems of signal distortion and high misjudgment rate under flushing of normal saline are effectively solved, the accuracy and anti-interference performance of tissue closure judgment are improved, and safety and reliability of an operation are guaranteed.

The purpose of the present invention is to provide a smoke and liquid discharge tube equipped with a nozzle, said tube enabling the position of a suction port to be adjusted on a forceps part such as an electrosurgical unit (forceps) and being capable of simultaneously suctioning and discharging both liquid and surgical smoke such as smoke or mist.　A smoke and liquid discharge tube equipped with a nozzle (1) according to the present invention comprises a tube body (2) in which a main lumen (3), which has open front and rear ends and into which a medical device is inserted and retained in the axial direction, and a suction lumen (5), which has open front and rear ends and is positioned inside in the axial direction, are formed in parallel. On the outer periphery of the front end of the tube body (2) where the suction lumen (5) is formed, a nozzle part (6) that has an arc-shaped cross section and protrudes and extends forward by a prescribed length from the front-end opening of the main lumen is formed so as to be bendable. A metal wire is embedded in the nozzle part, the metal wire bending the nozzle part and retaining the shape thereof. The front-end opening of the nozzle part is formed as a first liquid discharge port (8). A second liquid discharge port (10) that opens to communicate with the suction lumen is formed in the outward-facing peripheral wall of an axially intermediate part, and an exhaust port (11) that opens to communicate with the suction lumen is formed in the inward-facing peripheral wall near the front-end opening of the main lumen on the rear-end side of the nozzle part.

1. Name of the product in this design: Cutting electrode tip (flag shape). 2. Purpose of this design: This design is intended for use in conjunction with a high-frequency electrosurgical unit for cutting or coagulation during surgical procedures. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

An electrosurgical unit for use with a crossing member is disclosed. The electrosurgical unit includes a controller and device terminals. The device terminals include an active terminal and a measurement terminal. The device terminals couple to the crossing member. The controller generates a radiofrequency (RF) energy signal that is delivered to the active terminal. The RF energy signal is configured to cross tissue. The controller also determines whether the crossing member has crossed the tissue via a determined change in a response to a measurement signal received at the measurement terminal and generates an indication of tissue crossing based on the determined change in the response to the measurement signal.

An electrosurgical unit for use with a crossing member is disclosed. The electrosurgical unit includes a controller and device terminals. The device terminals include an active terminal and a measurement terminal. The device terminals couple to the crossing member. The controller generates a radiofrequency (RF) energy signal that is delivered to the active terminal. The RF energy signal is configured to cross tissue. The controller also determines whether the crossing member has crossed the tissue via a determined change in a response to a measurement signal received at the measurement terminal and generates an indication of tissue crossing based on the determined change in the response to the measurement signal.

The utility model relates to the technical field of medical instruments, and provides a water injection control structure for a high-frequency electrotome and a water injection type high-frequency electrotome. The water injection control structure comprises an inductive switch used for controlling a water pump motor to be powered on, and the control end of the inductive switch is connected with the output end of a signal processing circuit; the input end of the signal processing circuit is connected with the coil, and the coil is wound on the periphery of an electrotome coagulation cutting cable; the signal processing circuit controls the on-off of the inductive switch according to the induced voltage generated by the coil. And mutual exclusion of a high-frequency electrotome coagulation cutting function and a water injection function can be realized.

1. Name of the product in this design: Electrosurgical knife. 2. Purpose of this design: for use in surgery, and belongs to medical devices. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The top view has been shown in perspective view 1, so the top view is omitted.

A smooth muscle stimulation device is intended for use with any one of a variety of electrosurgical units (ESU's) of the type used in tissue resection and other procedures that risk damage to non-target tissues. The smooth muscle stimulation devices typically include an enclosure with stimulation circuitry configured to generate a stimulatory electrical signal which when delivered to a target anatomy induces an observable response in the target anatomy during a medical procedure. An input connector on the enclosure detachably couples to a power output of the ESU, and an output connector on the enclosure detachably couples to an electrosurgical tool. Switching circuitry within the enclosure selectively connects either the power output of the ESU or the stimulatory electrical signal of the stimulation circuitry to the output connector in response to user input.

1. Name of the product in this design: Water-injected high-frequency electrosurgical unit. 2. Purpose of this design: This design is intended for use in conjunction with a high-frequency electrosurgical unit for injection, cutting, or coagulation during surgical procedures. 3. The key design features of this product are its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application provides a medical ceramic high-frequency electric knife, and particularly relates to a preparation method and application of a medical high-frequency conductive ceramic, which realizes controllable alternating current impedance and intrinsic hydrophobic characteristics by adding a conductive phase in a ceramic base phase, can realize good high-frequency cutting and coagulation effects, reduces thermal damage, and reduces tissue adhesion in cutting. By using distributed pressure and adding mixed organic acid in the sintering process, the mechanical properties after sintering are improved, and the processability of the ceramic is improved.

The utility model discloses a pedal fixator for a clinical electric resection machine, and particularly relates to a fixator which comprises a supporting tool, spine portions flush with the two opposite side edges are fixedly arranged on the upper surface of the supporting tool, and the portion, between the two spine portions, of the supporting tool is a supporting area. Suckers which are symmetrically distributed in pairs are fixedly mounted at the bottom of the supporting tool; one side of the supporting area is a low side, the opposite side of the supporting area is a high side, and fixed blocking feet flush with the low side are symmetrically arranged in the supporting area; clamping jaws which are distributed on the high side and move relative to the fixed blocking feet are symmetrically arranged in the supporting area in a sliding mode. The pedal fixing device is simple in structure, and the pedal of the electric cutting machine can be conveniently fixed.

The utility model discloses an AC-DC circuit for electric knife, include: AC input interface, rectifier module, filter module, switch conversion module, control module and output module, the input end of AC input interface is accessed alternating current, and the output end of AC input interface is connected with rectifier module, and rectifier module is used for converting alternating current into direct current, the input end of filter module is connected with the output end of rectifier module, and filter module is used for filtering to the direct current after rectification, the input end of switch conversion module is connected with the output end of filter module, and switch conversion module is used for voltage conversion to the direct current after filtering, the output end of control module is connected with switch conversion module, and control module is used for controlling the working condition of switch conversion module, the input end of output module is connected with the output end of switch conversion module, and output module is used for outputting the direct current of different voltage. The utility model discloses through modularization design realizes the conversion of efficient alternating current to direct current, satisfies the requirement of electric knife to power stability, reliability and safety.

Systems and methods for monitoring an electrosurgical unit (ESU), analyzing ESU system data, predicting future ESU maintenance, and updating the ESU using firmware over-the-air (FOTA).

This utility model relates to the field of medical device technology and discloses a high-frequency electrosurgical unit for superficial tumors with an adjustable insulating outer tube. It includes a main body, an electrosurgical head, and an insulating outer tube. The electrosurgical head is fixedly installed inside the main body, with one end extending out. The insulating outer tube is sleeved on the electrosurgical head and can slide along it. The adjustable insulating outer tube of this utility model effectively isolates the current through the insulating material design around the electrosurgical head, avoiding lateral damage to normal tissues during surgery, as is common with traditional electrosurgical units, and enhancing the controllability and safety of the surgical procedure. The thin insulating outer tube, with a pointed end near the electrosurgical head, reduces skin bruising when the electrosurgical unit penetrates the skin, ensuring minimally invasive incisions and aesthetically pleasing postoperative wounds.

To provide a favorable system and method to evoke a smooth muscle response during surgery.SOLUTION: A smooth muscle stimulation device is intended for use with any one of a variety of electrosurgical units (ESUs) of the type used in tissue resection and other procedures that risk damage to non-target tissues. The smooth muscle stimulation devices typically include an enclosure with stimulation circuitry configured to generate a stimulatory electrical signal which when delivered to a target anatomy induces an observable response in the target anatomy during a medical procedure. An input connector on the enclosure detachably couples to a power output of the ESU, and an output connector on the enclosure detachably couples to an electrosurgical tool. Switching circuitry within the enclosure selectively connects either the power output of the ESU or the stimulatory electrical signal of the stimulation circuitry to the output connector in response to user input.SELECTED DRAWING: Figure 2

A docking system for electrosurgical equipment where a first docking interface is a recess in the housing of a smoke evacuator and a second docking interface is a raised portion of an electrosurgical unit. The first and second docking interfaces have corresponding ground, power, and communication contacts, so that the two devices can be physically and electrically interconnected by mating the first docking interface with the second docking interface. The first docking interface is on the top of the smoke evacuator and the second docking interface is on the bottom of the electrosurgical unit so that the devices may be stacked and interconnected using a minimum amount of space without the need for cabling.

This disclosure presents embodiments of a high-frequency electrosurgical unit control device and control system. One specific embodiment of the device includes: a control unit configured to control a high-frequency power generator to output high-frequency electrical energy; a data acquisition unit configured to perform multi-dimensional data acquisition of human tissue; a signal acquisition unit configured to acquire sound waves and extract features from the sound wave signals; a feature extraction unit configured to extract features from tissue impedance information sequences and human tissue image sequences respectively; a feature fusion unit configured to fuse sound wave feature tensors, tissue impedance feature tensors, and human tissue feature tensors; a generation unit configured to generate high-frequency electrosurgical unit control commands; and an adjustment unit configured to adjust the output power and modulate the waveform of the high-frequency electrical energy. This embodiment can reduce excessive thermal damage during surgery or improve cutting and coagulation efficiency.

1. Name of the product in this design: Graphical User Interface for Setting Functions in Electronic Devices. 2. Intended use of this design: for use in an electronic device. 3. The key design features of this product are the graphical user interface content on the screen. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: Used for setting the functions of high-frequency electrosurgical units. 6. Human-computer interaction method of graphical user interface: The main view is the function setting interface.