22 results about "Bipolar radiofrequency" patented technology

Radio-frequency (RE) microneedling skin resurfacing systems are described including an electrode with an array of partially insulated needles, where the needles' exposed tips conduct bipolar RF electric current into a patient's skin, thus enhancing collagen production that stretches the skin. The electrode is carried by an application handle, which connects to an RF current generator. The applied treatment cycles utilize vacuum to pull the skin against the needles and dielectric coolant to cool the epidermis. The needles' array penetrates the skin to a pre-determined depth inside the dermis layer, followed by a sequential delivery of RF bipolar current pulses. The treatment cycle is controlled by an algorithm, designed to raise the dermis layer temperature for a certain duration. The treatment cycle and algorithm rely on dynamic impedance measurements and temperature measurements by thermistors to assure optimized controlled heating of the dermis layer to a target temperature between 45 and 69°C.

The present invention relates to a high-intensity focused ultrasound and bipolar RF combined-output device having a suction function. The device comprises: a housing formed in a cylindrical shape and having a predetermined installation space therein, the housing including an installation body part coupled to the front end thereof; a high-intensity focused ultrasound (HIFU) output module installed in the housing to generate HIFU in front of the housing through a piezoelectric ceramic on the basis of an applied electric signal; and a bipolar RF output module installed in the housing to generate bipolar RF in front of the housing by using multiple electrodes forming at least one pair, to which an electric signal is applied. The installation body part comprises: a first body part having a cup-shaped suction groove recessed toward the rear thereof, the first body part being installed such that the front of the high-intensity focused ultrasound output module protrudes from the center of the front surface of the first body part; and a second body part extending from the outside of the first body part to have a ring-shaped installation surface, and installed such that the multiple electrodes of the bipolar RF output module are exposed toward the front, and are radially and uniformly arranged around the front end of the high-intensity focused ultrasound output module.

A bipolar radiofrequency (RF) device for treating tissue in the presence of an electrically conductive fluid includes a headpiece and a probe. The handpiece has a motor drive, a receiving channel, and an active electrical contact on an inner wall of the receiving channel. A return electrical contact is disposed proximally of the active electrical contact on the inner wall of the receiving channel. A probe includes a proximal hub and an elongated shaft extending distally about a longitudinal axis from the proximal hub, and the hub being may be inserted into and removed from the receiving channel of the handpiece. A working end of the probe is located at a distal end of the elongated shaft, and the working end includes an active electrode and a return electrode. A return electrical contact is located proximally of an active electrical contact on an outer surface of the hub. In this way, the return electrical contacts in the receiving channel and on the outer surface of the hub, respectively, and the achieve electrical contacts in the receiving channel and on the outer surface of the hub, respectively, engage each other when the hub is inserted into the receiving channel of the handpiece.

1. The name of the design product: disposable bipolar radio frequency plasma surgical electrode handle. 2. The use of the design product: used for cutting, ablation, coagulation and hemostasis of soft tissue in surgical operation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to a bipolar radio frequency grinding cutter and a grinding device, in the using process, a power handle drives an inner cutter tube and a grinding piece to rotate around the axial direction relative to an outer cutter tube, and therefore the grinding piece can be used for grinding and cutting off focus area tissue. When bleeding occurs at an affected part, the main machine supplies power to the electrode tube and the outer knife tube through the conductive plug, so that the electrode tube is electrified to form a pole, the outer knife tube, the conductive part, the inner knife tube and the grinding piece are electrified to form another pole, and the two poles are conducted to form a loop when tissue is contacted. Therefore, electric coagulation hemostasis or electric coagulation cutting can be carried out on an affected part, hemostasis can be carried out on the affected part without additional other hemostasis instruments, operation is easy and convenient, and the operation duration is shortened.

This invention discloses a positionable bipolar radiofrequency ablation electrode, relating to the field of medical device technology. It includes a handheld end with an electrode needle at its bottom. A hollow screw is disposed within the inner cavity of the handheld end. A partition is rotatably connected to the surface of the hollow screw and fixedly connected to the inner wall of the handheld end. A threaded seat is threadedly connected to the bottom of the hollow screw. A hollow tube communicates with the bottom of the threaded seat and is fixedly connected to the electrode needle. A first driving component is disposed on one side of the threaded seat. A second driving component allows for flexible adjustment of the distance between the second electrode and the electrode needle, expanding the ablation range. The first driving component allows for flexible adjustment of the extension and retraction length of the electrode needle, adapting to lesions of different depths. Simultaneously, the adsorption component efficiently adsorbs accumulated fluid and gas generated during the ablation process, with the adsorption range expanding synchronously with the ablation range, ensuring that accumulated fluid and gas in different ablation areas are completely discharged, maintaining the stability of the local thermal field.

The application discloses a surgical electrode for an electromagnetic knife, which comprises a front handle, a rear handle and an electrode core. The front end of the front handle is provided with an electrode outlet. The front handle and the rear handle are connected in a circumferential rotating mode. The electrode core is arranged in the interiors of the front handle and the rear handle. The rear end of the electrode is fixed in the interior of the rear handle and connected with a cable. The front handle and the rear handle can move in an axial direction. The position of the electrode core is driven by the rear handle, so that the front end of the electrode core can extend out of the electrode outlet and accurately reach a surgical area. The application solves the technical problems that the head of the existing bipolar radiofrequency ablation electrode cannot be adjusted or the adjustment affects operation and the adjustment precision is low after the electrode enters a lesion area.

This utility model discloses a bipolar radiofrequency electrode for bone tumor surgery, which includes a cable assembly, a handle, a scalpel, and a scalpel head connected in sequence. The scalpel head includes a suction tube and an outer steel tube that is spaced and sleeved on the suction tube, with a water outlet channel formed between the suction tube and the outer steel tube. The scalpel head includes an insulating head fixed to the distal end of the outer steel tube. The insulating head is provided with a first strip electrode and a second strip electrode arranged side by side. The insulating head located at the first strip electrode and the second strip electrode has several suction holes, which are connected to the suction tube. Several water outlet holes connected to the water outlet channel are provided on both sides of the distal end of the outer steel tube. This solution uses radiofrequency electrodes to irrigate the incision after the resection of benign spinal tumors, which can accurately stop bleeding at soft tissue bleeding points, effectively reducing the amount of bleeding. Furthermore, by utilizing the circulating supply of physiological saline, the first strip electrode and the second strip electrode are effectively wrapped by physiological saline, thereby ensuring the plasma excitation efficiency.

This disclosure relates to various surgical systems, including modular electrosurgical and / or ultrasonic surgical systems. [Solution] A modular energy system for surgical procedures, comprising a generator module, a header module, and a display, wherein the generator module comprises a first mounting section for mounting a unipolar RF energy surgical device, a second mounting section for mounting a bipolar RF energy surgical device, and a third mounting section for mounting an ultrasonic energy surgical device, and the display comprises a first display unit that displays the setting status of the unipolar RF energy surgical device or a first setting screen for changing the settings, a second display unit that displays the setting status of the bipolar RF energy surgical device or a second setting screen for changing the settings, and a third display unit that displays the setting status of the ultrasonic energy surgical device or a third setting screen for changing the settings.

Disclosed is a surgical instrument with an end-effector adapted and configured to deliver a plurality of energy modalities to tissue at a distal end thereof. The energy modalities may be applied simultaneously, independently, or sequentially. A generator is electrically coupled to the surgical instrument and is configured to supply a plurality of energy modalities to the end-effector. In one aspect, the generator is configured to supply electrosurgical energy (e.g., monopolar or bipolar radio frequency (RF) energy) and ultrasonic energy to the end-effector to allow the end-effector to interact with the tissue. The energy modalities may be supplied to the end-effector by a single generator or multiple generators.

Disclosed is a method of adapting energy modality due to a short circuit or tissue type grasped in the jaws of an end effector of a surgical instrument and a system with a control circuit configured to execute the method. The method includes determining a first and second electrode of an array of segmented electrodes are shorted to each other, blending monopolar and bipolar RF energy to the array of segmented electrodes, and determining that the first and second electrodes remain shorted after the blending step. Additionally, or alternatively, the method may include determining that the first and second electrodes are no longer shorted after the blending step, sensing an electrical parameter of tissue grasped within jaws of the end effector, and determining an energy sealing and cutting procedure based on the sensed electrical parameter of the tissue.

The invention discloses an insulating coating for a disposable bipolar radio frequency plasma surgical electrotome, and belongs to the technical field of medical instrument materials. The insulating coating is made of a polymer composite material with a special formula, and is uniformly and tightly attached to the surface of an electrode of a surgical electrotome through a specific coating process. The coating has an extremely low dielectric constant and a good insulating property, can effectively block leakage of radio frequency current, and ensures that the current only circulates in a target tissue area between the bipolar electrodes in an operation process, so that the risk of thermal damage to surrounding normal tissues is reduced. Meanwhile, the insulating coating has excellent wear resistance and corrosion resistance, can bear friction and corrosion of chemical reagents in surgical operation, can keep the integrity and insulating effect for a long time even in a complex surgical environment, and ensures stable work of the surgical electrotome. In addition, the surface of the coating is subjected to special treatment, so that the coating has certain lubricity, the surgical electrotome can smoothly move in tissues, and tissue adhesion is reduced. By means of the insulating coating, the safety and reliability of the disposable bipolar radio frequency plasma operation electrotome are remarkably improved, the service life of the disposable bipolar radio frequency plasma operation electrotome is remarkably prolonged, and more powerful support is provided for clinical operations.

The present invention relates to a method for the non-therapeutic cosmetic treatment of skin, the method comprising: a. Applying a cosmetic composition to a target area of skin, the cosmetic composition comprising a non-polymeric cosmetic active agent having a molecular weight in the range of 100 Da to 700 Da, b. Exposing the target area of skin to a series of current pulses, the frequency of the pulses ranges from 100 kHz to 100 MHz, and the current is supplied by a bipolar radiofrequency cosmetic device having at least one electrode and at least one counter electrode.

Provided herein is a method for treatment of nasal wall insufficiency, comprising: providing a puncture guide, the puncture guide comprising a stabilizing frame and a plurality of puncture passages; providing a bipolar radiofrequency probe having a piercing tip; introducing the puncture guide into the nasal passages of the patient; piercing the radiofrequency probe into nasal wall tissue through one of the plurality of puncture passages; energizing the radiofrequency probe for heating the nasal wall tissue; de-energizing the radiofrequency probe; removing the radiofrequency probe from the nasal wall tissue; repeating the above steps for sequentially pierce the radiofrequency probe through each of the plurality of puncture passages; and allowing the nasal wall tissue to cool.Further provided are a puncture guide for treatment of nasal wall insufficiency, comprising a stabilizing frame and a plurality of puncture passages; an instrument set for treatment of nasal wall insufficiency, comprising: a bipolar radiofrequency probe, the probe having a main body and an elongate shaft, the shaft having a piercing tip and first and second electrodes disposed near the distal end thereof, and a puncture guide; and a medical system for treatment of nasal wall insufficiency, the system comprising: a bipolar radiofrequency probe, the probe having a main body and an elongate shaft, the shaft having a piercing tip and first and second electrodes disposed near the distal end thereof; a puncture guide having a stabilizing frame and a plurality of puncture passages; and an electrosurgical generator.

Provided herein are methods for ablating a portion of the posterior nasal nerve of a human patient, comprising: providing a bipolar radiofrequency probe having an elongated probe shaft and a piercing tip, providing an endoscope having an elongated endoscope shaft, advancing the endoscope and the bipolar radiofrequency probe into a nostril of the patient's nose, piercing the bipolar radiofrequency probe into the tissue surrounding the posterior nasal nerve under optical guidance using the endoscope, and applying RF energy to the radiofrequency probe to ablate the posterior nasal nerve. Furthermore, systems and devices for ablating a portion of the posterior nasal nerve of a human patient and image processing systems to assist in this process are provided.

This invention discloses a steerable radiofrequency ablation and plasma ablation surgical forceps for laparoscopic surgery, relating to the field of medical device technology. It includes a proximal component for manipulation, a slender main body component that enters the body cavity, and a distal working component. The main body component includes a hollow sleeve, a pull rod slidably connected within the sleeve, and a gripping portion fixed to the outside of the sleeve. The segment of the sleeve near the gripping portion has an upper notch structure, at which a drive component for steering the working component is provided. By integrating a bipolar radiofrequency electrode and a localized liquid spray system on the same jaw structure, structural integration of both radiofrequency ablation and plasma ablation energy action modes is achieved. A unique sliding key joint structure decouples the axial sliding and circumferential rotation of the pull rod, allowing independent control of jaw opening and closing and working component steering without interference.

A medical device includes a guide sheath and one or more return electrodes disposed on an outer surface of the guide sheath. The one or more return electrodes are configured, with one or more radiofrequency ablation electrodes disposed on a distal lip of an elongate member inserted through the guide sheath, to perform bipolar radiofrequency ablation. The one or more return electrodes may comprise a first return electrode disposed on a first location of the outer surface of the guide sheath and at least a second return electrode disposed on a second location of the outer surface of the guide sheath.

The application discloses a surgical electrode for an electromagnetic knife, which comprises a front handle, a rear handle and an electrode core. A front end of the front handle is provided with an electrode outlet which can move along the axial direction of the front handle. The front handle and the rear handle are connected in a circumferential rotating mode. The electrode core is arranged in the interior of the front handle and the rear handle. A rear end of the electrode core is fixed in the interior of the rear handle and connected with a cable. The position of the electrode outlet is adjusted so that the front end of the electrode core extends out of the electrode outlet and accurately reaches a surgical area. The application solves the technical problems that the head of the existing bipolar radio frequency ablation electrode cannot be adjusted or the adjustment affects operation and the adjustment precision is low after the electrode enters a lesion area.

The utility model relates to a bipolar radio frequency planing cutter and a planing device, in the using process, negative pressure suction is achieved through a suction channel, so that when an inner cutter tube rotates around the circumferential direction relative to an outer cutter tube, tissue in a focus area can be rotationally cut off through relative shearing of a first planing opening and a second planing opening. When bleeding occurs at the affected part, the main machine supplies power to the electrode tube and the outer knife tube through the conductive plug, and when the main machine makes contact with tissue, the electrode tube and the outer knife tube are electrically conducted to form a loop, so that electric coagulation hemostasis can be conducted on the affected part, hemostasis can be conducted on the affected part without other extra hemostasis instruments, operation is easy and convenient, and the working efficiency is improved. And the operation time is shortened.

Provided herein is a method for treating nasal wall insufficiency, comprising: providing a puncture guide, the puncture guide comprising a stabilizing frame and a plurality of puncture channels; providing a bipolar radiofrequency probe having a puncture tip; inserting the puncture guide into the nasal passages of the patient; piercing the radiofrequency probe into the nasal wall tissue through one of the plurality of puncture channels; energizing the radiofrequency probe to heat the nasal wall tissue; denergizing the radiofrequency probe; removing the radiofrequency probe from the nasal wall tissue; repeating the above steps to sequentially pierce the radiofrequency probe through each of the plurality of puncture channels; and allowing the nasal wall tissue to cool. Also provided are: a puncture guide for treating nasal wall insufficiency, comprising a stabilizing frame and a plurality of puncture channels; an instrument set for treating nasal wall insufficiency, comprising a bipolar radiofrequency probe, the probe having a main body and an elongated shaft, the shaft having a puncture tip and first and second electrodes disposed near its distal end, and a puncture guide; and a medical system for treating nasal wall insufficiency, the system comprising: a bipolar radiofrequency probe, the probe having a main body and an elongated shaft, the shaft having a puncture tip and first and second electrodes disposed near its distal end; a puncture guide having a stabilizing frame and a plurality of puncture channels; and an electrosurgical generator.

The double-waterway adjustable bipolar radiofrequency ablation needle comprises an operation grab handle, a needle head and a needle rod, the needle head and the operation grab handle are located at the front end and the rear end of the needle rod respectively, and a needle rod fixing base, a water return pipe fixing base and a water inlet pipe fixing base are sequentially arranged in the operation grab handle from front to back; the inner cavity of the water return pipe fixing seat is communicated with the inner cavity of the water inlet pipe fixing seat. The position of an ablation area is adjusted through the adjusting sliding block, the adjusting knob and the adjusting insulating tube, so that the radiofrequency ablation needle can be used for ablation electrodes of various specifications, and diversified ablation requirements are met; the radiofrequency ablation needle adopts a bipolar mode, and water circulation and water injection are combined to enlarge the ablation range; the first electrode wire is connected with the water circulation structure, the second electrode wire is connected with the water injection structure, double water paths are fused into the bipolar structure, the bipolar function is achieved, meanwhile, the defect that an existing ablation needle is small in ablation range is overcome, the treatment effect is guaranteed, and meanwhile the clinical safety can be improved.

The bipolar radio frequency electrosurgical device (1) comprises: - at least one manipulation body (2); - at least one insertion element (3) having a substantially elongated conformation, provided with a proximal end (4), associated with the manipulation body (2), and with a distal end (5), which can be positioned in contact with a body tissue of a patient; - at least two electrodes (6) associated with the insertion element (3) where the distal end (5) is located and adapted to deliver, where the body tissue is located, a bipolar radio frequency electric current generated by an external generating unit; wherein the insertion element (3) is made, at least partly, of a substantially flexible material.