1401results about "Surgical instruments for cooling" patented technology

In an embodiment, a cryoablation probe includes a shaft, where the shaft has a supply tube, a return tube surrounding the supply tube, an insulated portion, wherein a vacuum circuit runs through the insulated portion between the return tube and an insulating shaft, and an expansion chamber extending distally to the insulated portion. The probe further includes a distal tip configured to seal a distal end of the return tube. The distal tip has a tip portion extending distally from the distal end of the return tube and a plug portion configured to be inserted inside of the return tube. The probe includes a compressive element surrounding the return tube and the plug portion of the distal tip, configured to seal the distal tip to the return tube.

Methods and system for atrial fibrillation ablations and other cardiac procedures utilizes a cardiac mapping system for navigation and guidance, and includes an additional virtual reality (VR) system and an augmented reality (AR) or mixed reality (MR) system. The Cardiac mapping system utilizes medical images and patient's electrical signals. The virtual reality (VR) system is utilized pre-procedure for visualization and pre-procedure planning. The augmented reality (AR) or mixed reality (MR) system is utilized pre-procedure or intra-procedure. Methods and system are disclosed utilizing pre-built virtual device models which interact with 3D volume rendered structures from patient's CT or MRI of the region of interest (ROI) for the different type of cardiac procedure. With virtual reality (VR) the operator utilizes hand-held sensors. With augmented reality (AR) or mixed reality (MR) a combination of hand gestures and an X-box controller is used to manipulate virtual devices, anatomical structures in the Hologram.

A method for treating nerves in a nasal cavity starts with identifying a patient having a condition occurring outside the nasal cavity. The method then involves activating a console attached to a radiofrequency stylus, advancing a distal tip of the radiofrequency stylus into a nostril of the patient, contacting nasal mucosa lining the nasal cavity with a treatment surface of the distal tip, and delivering radiofrequency energy from one set of bipolar electrodes on the treatment surface of the distal tip to a second set of bipolar electrodes on the treatment surface, to treat at least one nerve underlying the nasal mucosa. Treating the nerve (or nerves) involves modulating activity of the nerve to ameliorate the condition occurring outside the nasal cavity.

Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and / or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and / or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.

The embodiment of the invention provides a handle and an ablation catheter, and belongs to the technical field of ablation. The handle is used for ablation of the catheter and comprises a shell and a first sealing gasket, the first sealing gasket is arranged in the shell and provided with a first through hole allowing the movable part to penetrate through and a second through hole allowing the silk thread to penetrate through, the movable part is in interference fit with the first through hole, and the silk thread is in interference fit with the second through hole. The handle can reduce the risk of errhysis.

Provided are a treatment system and a treatment method that improve the efficiency of endoscopic examination and treatment.　A treatment system (20) comprises a tubular member (31) which has a hollow part (31S) formed therein and which is provided with, at the leading end (31A) thereof, a treatment part (32) on the outer circumference of the hollow part (31S). Between a base-end surface (311) on the base end (31B) side and a leading-end surface (312) on the leading end (31A) side of the tubular member (31) in the axial direction, at least the base-end surface (311) has formed therein a base-end opening (3(1)1A) that is connected to the hollow part (31S).

Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and / or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and / or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.

The present invention includes systems, devices and methods for treating and / or diagnosing a heart arrhythmia, such as atrial fibrillation. Specifically, the present invention provides a system including a diagnostic catheter and an ablation catheter. The diagnostic catheter includes a shaft, multiple dipole mapping electrodes and multiple ultrasound transducers. The ablation catheter is slidingly received by the diagnostic catheter shaft.

Methods of ablating a basivertebral nerve (BVN) in a lumbar or sacral vertebral body of a patient. An introducer and one or more instruments are selected after a pre-surgical evaluation. The introducer has a handle coupled to a shaft defining a central channel and an opening at a distal tip thereof. The introducer is inserted through a pedicle of the vertebral body such that its opening reaches a cancellous portion of the vertebral body. The one or more instruments are delivered through the central channel. A distal deflectable section of the one or more instruments is advanced past the introducer's opening to position it proximate to the BVN in a posterior midline section of the vertebral body. An active element is extended relative to at least a portion of the one or more instruments. Energy is delivered to the active element to ablate at least a portion of the BVN.

A female insertion system is provided. The system includes a conformable insert shaped for insertion into one or more structures of a female human that are associated with at least one of reproduction and one or more erogenous zones; one or more sensors, at least one of the sensors included in the insert, and configured to measure and to relay data, wherein the data is acquired on one of a one-time basis and a multiple-time basis included one of a non-continuous period, a continuous period, and an intermittent temporal period; and a processor configured to: control the insert; generate a treatment for one of the structures of the female human; store the data; and based on the data, automatically affect one or more of the structures via the insert.

The invention provides a balloon biopsy catheter in a pulmonary artery, and belongs to the technical field of balloon biopsy catheters. Comprising a catheter body, a working channel opening is formed in the end of one side of the catheter body, an air bag ventilation connecting opening is formed in the end of the side, close to the working channel opening, of the catheter body, a freezing probe body is installed in the catheter body, and a needle core body is installed in the freezing probe body. By arranging the limiting storage mechanism, the catheter body can pass through a zigzag path of a pulmonary artery, and the inflatable air bag body and the air bag inner bag which are installed at the end of one side of the catheter body are inflated after reaching an occupying lesion position, so that the end part of the catheter body can be quickly fixed; therefore, the position of the end of the catheter body is kept stable in the operation process, the freezing probe body and the needle core body are used in cooperation with the balloon catheter, and biopsy sampling is conducted after the air bag body and the air bag inner bag are fixed.

Embodiments of the present invention provide devices and methods for treating at least one condition by delivering an effective amount of energy and / or a compound to tissue in or surrounding the wall of a body lumen. The compound may include at least one of a gas, vapor, liquid, solution, emulsion, suspension, or combinations thereof of one or more materials. The delivered amount of compound and / or energy may be effective to injure or damage tissue, nerves, and / or nerve endings so as to alleviate symptoms of the condition.

A vacuum tube is arranged between a sealing component and a tube body of an outer tube, and a second pressure sensor is integrated in the vacuum tube and used for detecting the gas pressure in the vacuum tube; the air inlet pipe extends into the balloon from the near end of the ablation mechanism, and an opening is formed in the outer surface of the air inlet pipe and used for releasing cold air to the balloon; a second temperature sensor is integrated on the surface of the air inlet pipe and used for detecting the temperature in the balloon, and the working temperature in the balloon is maintained by monitoring the temperature in the balloon in real time and adjusting the air inlet rate of cold air; a third pressure sensor is integrated at a port of the air return pipe and used for detecting the air pressure in the balloon, and the air inlet rate of cold air is adjusted according to the air pressure in the balloon monitored in real time so that the air pressure in the balloon can be kept within a safe range.

Elongate medical devices with an expandable structure including elongated splines and a distal hub. An elongate medical device includes a handle including a control mechanism, a catheter shaft, an expandable structure including elongated splines and a distal hub, wherein each of the elongated splines includes a shape memory material and an interactive element, wherein each of the elongated splines includes a respective spline proximal end and a spline distal end, wherein each of the spline proximal ends is connected to the catheter shaft distal end, and wherein each of the spline distal ends is connected to the distal hub, and a deflection control member connected to the distal hub, wherein the control mechanism is drivingly coupled to the distal hub via the deflection control member and operable to selectively vary a position of the distal hub relative to the catheter shaft distal end to selectively vary an amount of expansion of the expandable structure, wherein a shape of the expandable structure is produced via a combination of the shape memory material and the position of the distal hub relative to the catheter distal end.

A method of treating a soft palate in a patient may involve advancing a tissue treatment portion of a soft palate treatment device through the patient's mouth, contacting a treatment surface of the tissue treatment portion with mucosal tissue of the soft palate, and delivering energy from the tissue treatment portion through the mucosal tissue to a target tissue in the soft palate beneath to the mucosal tissue, to change at least one property of the target tissue. The method may further involve cooling the mucosal tissue with a cooling member on the treatment surface of the tissue treatment portion and removing the tissue treatment portion from the mouth.

The utility model provides an adjustable cold knife for cervical conization, which belongs to the field of medical instruments and comprises a handle, an adjusting component for adjusting the depth of the knife is slidably mounted in the handle, and an excision component for cervical conization is hinged to the top of the adjusting component. When the control sliding block is pushed slightly, the cutter bar can stably slide along the limiting groove and extend out of the handle, the limiting groove provides stable guidance for sliding of the control sliding block, it is ensured that the control sliding block always keeps linear movement, and then the cutter bar moves accurately without errors; therefore, it is guaranteed that the cutting depth is accurate, the whole operation process is simple, convenient and rapid, the adjusting precision is extremely high, and adjustment can be conducted according to different operation requirements.

The invention belongs to the technical field of medical instruments, and particularly relates to a cryoablation catheter and an ablation system.The cryoablation catheter comprises an inner catheter body and an outer catheter body, the outer catheter body is coaxially arranged on the outer side of the inner catheter body in a sleeving mode, and the inner catheter body is configured to be of a multi-cavity structure; the multiple plugging assemblies are arranged on the outer side of the inner catheter; wherein in the initial state, the multiple plugging assemblies and the inner catheter are located in the outer catheter, and in the working state, the multiple plugging assemblies and the inner wall of the intestinal tract jointly form an ablation closed space. The cryoablation catheter is guided to a target position through the guide wire, the closed ablation space is formed through cooperation of the plugging assembly and the inner wall of the cavity, a freezing medium is input into the closed ablation space to conduct cryoablation on the inner wall of the cavity, an available treatment scheme is provided for patients suffering from type 2 diabetes, obesity or other cavity lesions, and meanwhile the treatment effect is improved. The device has the advantages of small trauma, less pain of patients, low surgical risk and the like.

A multimodality or hybrid ablation system includes an ablation apparatus for creating a lesion in target tissue. The ablation apparatus has an ablation shaft including a handle, a first portion, an ablation portion, distal tip, at least one ablation energy delivery lumen, at least one ablation energy return lumen, and a stylet lumen that extends substantially along a length of the ablation shaft from the handle to at least the ablation portion. The ablation apparatus also includes a stylet that is capable of being inserted into the stylet lumen where the stylet is made of a shape-memory material. A plurality of electrodes are arranged on the ablation portion for measuring or verifying tissue contact with the tissue and applying a pulsed electric field. Optionally, the pulsed electric field may be applied after, contemporaneously, or for only a portion that the cryo-modality is applied to the target tissue.

Methods and devices for treating nasal airways are provided. Such devices and methods may improve airflow through an internal and / or external nasal valve, and comprise the use of mechanical re-shaping, energy application and other treatments to modify the shape, structure, and / or air flow characteristics of an internal nasal valve, an external nasal valve or other nasal airways.

Embodiments of the invention provide devices and methods for at least one disease by delivering an effective amount of energy and / or a formulation to tissue on or near a body lumen. The formulation may include at least one of a gas, a vapor, a liquid, a solution, an emulsion, a suspension, or a combination thereof of one or more ingredients. The delivered amount of formulation and / or energy may be effective to damage or damage tissue, nerves, and / or nerve endings to relieve disease symptoms.

A high and low temperature composite ablation surgery system, relating to the technical field of cryotherapy, used to improve the safety and effectiveness of therapy, and comprising a main unit (100) and a cryogenic-thermal ablation probe (200) connected to the main unit (100). The main unit (100) comprises a cold working medium supply system (300), a hot working medium supply system (400), and a working medium distribution system (500). The working medium distribution system (500) can respectively control the cold working medium supply system (300) to deliver a cold working medium to the cryogenic-thermal ablation probe (200) and control the hot working medium supply system (400) to deliver a hot working medium to the cryogenic-thermal ablation probe (200). Therefore, after low-temperature therapy is completed, a therapy area can be quickly rewarmed, thereby providing a basis for improving the safety, economy and convenience of the surgery.

Systems and methods for treating a patient's mucus hypersecretion condition are disclosed herein. Certain implementations may involve a method for reducing mucus secretion in an upper airway of a patient to treat at least one of post nasal drip or chronic cough. The method may include advancing a treatment delivery portion of an energy-based treatment device into a nostril of the patient. The treatment delivery portion may contact mucosal tissue of the upper airway without piercing the mucosal tissue. The treatment delivery portion may deliver treatment to at least one tissue selected from the group of the mucosal tissue and another tissue underlying the mucosal tissue to modify a property of the at least one tissue and thus treat at least one of post nasal drip or chronic cough in the patient.

The present invention relates to a cryosurgery device for an endoscope, the cryosurgery device being characterized by comprising: a needle having a needle cooling unit which is cooled by a refrigerant and cools a target; a cooling nozzle that is detachably attached to the endoscope and is inserted into the needle and sprays the needle cooling unit with the refrigerant; and an insulation member that is provided in one area of the outer circumference of the needle other than the needle cooling unit and insulates the needle.

The invention relates to the technical field of medical instruments, in particular to a cryoablation needle based on radio frequency rewarming, the medical instrument comprises a needle body, a capillary catheter, a first air inlet pipe, a second air inlet pipe, a needle tube, an insulating tube, a vacuum tube and a radio frequency welding wire, and after the needle body on the needle tube is led into tissue by an operator, the needle body is heated to be cooled; the tissue is frozen after air is injected through the first air inlet pipe and the second air inlet pipe to be cooled, then the tissue is rapidly heated under the action of the radio frequency welding line on the needle tube and is inactivated after multiple times of circulation, treatment is completed, meanwhile, internal redundant tissue fluid is automatically and rapidly guided out through the capillary catheter, secondary infection is avoided, and the device is simple in structure and convenient to operate. The problem of treatment of diseased tissues is effectively solved, and the device has good practicability and economical efficiency and is beneficial to popularization and use of equipment.

The present disclosure relates to a skin treatment device, the skin treatment device comprising: a main body including a control unit that controls the operation of the skin treatment device and a power source unit that supplies power to the medical skin treatment device; a transfer unit for moving the main body; and a handpiece which receives power from the power source unit of the main body, is controlled by the control unit, and has one side that comes into contact with the skin of a patient to radiate therapeutic energy below the skin surface of the patient and thus improve the skin.

The utility model relates to the technical field of medical instruments, and discloses a medical fixator and an ablation treatment device.The medical fixator comprises a bottom supporting part and an instrument fixing part, the head end of the instrument fixing part is movably connected with the bottom supporting part, multi-angle adjustment can be achieved, and different operation requirements can be met; the tail end of the instrument fixing part is used for connecting a corresponding medical instrument; the upper area of the bottom supporting part is used for supporting a patient, for example, the bottom supporting part is fixed to a preset position such as a CBCT sickbed during preoperative preparation or during an operation, so that relative fixation of the whole device is achieved, and corresponding medical instruments can be moved to the focus position of the patient under operation of medical staff for treatment or pretreatment; the medical fixator is simple in structure and flexible to operate, the problem that a traditional fixing mode is poor in stability is effectively solved, and operation efficiency and safety are remarkably improved.

A current supply arrangement (22) is used for electrical supply of two electrodes (18, 19), as well as for mechanical force transmission in a thermofusion instrument. Due to the configuration of the two electrical conductors (23, 28) as upright arranged flat parts and the force concerned coupling thereof in an interlocking section (32), the electrical conductors (23, 28) can be used as mechanical stiffening elements, whereby a filigree, gap-free, easily and reliably sterilizable configuration is achieved. The current supply of the instrument (10) is provided via one single cable (20) only, which is provided only on one of the two jaws (11, 12).

A method of performing a transperineal biopsy procedure including the steps of: inserting an access needle into one of a plurality of needle receiving ports of a displacement member of a transperineal biopsy guide that is secured to the transrectal ultrasound probe; securing the access needle to the displacement member such that a position of the access needle relative to the displacement member is maintained; imaging the prostate of the patient with the transrectal ultrasound probe; inserting the access needle into the perineal access site of the patient; and inserting the biopsy needle through the access needle and into the prostate of the patient.

Provided herein is an apparatus having a first tubular body, a second tubular body disposable within the first tubular body, a first plurality of fenestrations in fluid communication with a gallbladder lumen, and an expandable body disposed around the first plurality of fenestrations. The first plurality of fenestrations is configured to deliver a phase changing ablation medium by spraying the phase changing ablation medium in a spatially diffuse pattern into the space defined by the expandable body between the first plurality of fenestrations and the wall of the gallbladder. The first tubular body and the second tubular body define an annular flow path. A pressure sensor measures intraluminal pressure of the gallbladder. A control unit is coupled to the pressure sensor.

A transperineal biopsy guide for use with an access needle and a transrectal imaging probe. The transperineal biopsy guide includes a mount, a guide member, and an access needle support structure. The mount is attachable to the probe. The guide member includes: a first side comprising a first distal member and a first surface extending proximally from the first distal member; a second side comprising a second distal member and a second surface extending proximally from the second distal member; and a gap between the first distal member and the second distal member. The access needle support structure is securable to the guide member in a distal position that inhibits vertical and distal displacement of the access needle support structure relative to the guide member while permitting disengagement from the distal position via proximal movement of the access needle support structure relative to the guide member.