24 results about "Cryosurgery" patented technology

Embodiments herein relate to cryoablation systems. In an embodiment, a cryosurgery system includes a closed-loop working fluid circuit configured to contain a working fluid. The system can include a compressor configured to increase the pressure of the working fluid. The system can include a heat exchanger configured to lower the temperature of the working fluid. The system can include a cryoablation probe having a shaft having a supply tube and a return tube surrounding the supply tube. The system is configured so that, after exiting the first heat exchanger, the working fluid will enter the cryoablation probe, travel to the expansion chamber, expand in the expansion chamber at a Joule-Thomson orifice, travel to the cryoablation probe interface via the return tube, exit the cryoablation probe via the working fluid outlet, enter the compressor, and enter the first heat exchanger.

Embodiments herein relate to cryoablation systems. In an embodiment, a cryosurgery system includes a closed-loop working fluid circuit configured to contain a working fluid. The system can include a compressor configured to increase the pressure of the working fluid. The system can include a heat exchanger configured to lower the temperature of the working fluid. The system can include a cryoablation probe having a shaft having a supply tube and a return tube surrounding the supply tube. The system is configured so that, after exiting the first heat exchanger, the working fluid will enter the cryoablation probe, travel to the expansion chamber, expand in the expansion chamber at a Joule-Thomson orifice, travel to the cryoablation probe interface via the return tube, exit the cryoablation probe via the working fluid outlet, enter the compressor, and enter the first heat exchanger.

The present invention relates to a radiation therapy or microwave therapy or cryosurgery or ultrasound therapy reference positioning marker (5) adapted to be implanted in tissue using a hollow injection needle (4), wherein the marker comprises an elongated object with a longitudinal axis (CL) and have cross-sections (A-A, B-B, C-C, D-D, E-E, F-F) of the object, perpendicular to said longitudinal axis (CL), being adapted to fit within an inner diameter (DI) of the needle (4), wherein the marker (5) comprises a plurality of first segments (1) having a first cross-section and one or more second segments (2) having a second set of cross-sections, wherein an area of the first cross-section is selected relatively larger than area / s of the second set of cross-sections, and wherein the first segments (1) and second segments (2) are arranged alternately after each other along the longitudinal axis (CL), wherein the one or more of second segments (2) are provided with one or more deformation segments (22) adapted to ensure that any deformation of the plurality of second segments, when positioned inside the needle, occurs in a predetermined location / s between adjoining first segments, such that the plurality of first segments remain linearly aligned in the injection needle when it encounters resistance during implantation into the tissue.

A surgical kit for providing a cryoprotective composition configured to be applied during cryotreatment of a patient includes: a first container containing a predetermined amount or volume of a biodegradable and / or bioerodible fluid agent; and a second container containing a predetermined amount or volume of a non-toxic cryoprotectant agent. The predetermined amount or volume of the of biodegradable and / or bioerodible fluid agent and the predetermined amount or volume of a non-toxic cryoprotectant agent are configured to be mixed together to form the cryoprotective composition in which a therapeutically effective amount of the cryoprotective composition deposited in a body space of the patient in proximity to the cryotreatment remains within at least a portion of the body space for a duration of the cryotreatment and at least a portion of a body tissue proximate to the body space is viable after the cryotreatment.

Provided in the present disclosure are materials, devices, systems, and methods for performing cryo-surgery in a mammalian subject. More particularly, presented are a slurry, devices, systems, and methods for subcutaneously injecting the slurry into a patient in need of bodyfat reduction intervention. The slurry, devices, systems, and methods permit highly efficacious subcutaneous ice phase-change lipolysis while not requiring that the patient be placed under general anesthesia, nor requiring significant new surgical training among practitioners.

The invention relates to an integrated cryosurgical device and a method of treatment that makes the application of cryogen to a targeted skin lesion on the surface of the skin for treatment more efficient through the use of a combination of a thermally conductive applicator tip, a conductive link, and an evaporative reservoir system. The combination of the thermally conductive applicator tip, the conductive link, and the evaporative reservoir system allows for the temperature of the thermally conductive applicator tip to be lower than the boiling point of a cryogen gas used with the integrated cryosurgical device when applied to a targeted skin lesion through heat of vaporization and evaporative cooling.

The invention belongs to the field of medical instrument research / manufacturing, and particularly relates to a fluid gear adjusting assembly, a manufacturing method and a cryosurgery device comprising the fluid gear adjusting assembly. The adjusting assembly comprises fluid pipelines and opening control modules arranged on the fluid pipelines, the fluid pipelines are arranged on the base, the base is internally provided with two fluid pipelines, the initial positions of the first pipeline and the second pipeline are separated, and the tail ends of the first pipeline and the second pipeline are intersected; the opening degree control module comprises a straight pipe section located in the first pipeline or the second pipeline, a plugging block is arranged in the straight pipe section, the plugging block axially moves in the straight pipe section to change the size of the cross sectional area of the syn-position connecting pipeline at an inner wall connector of the straight pipe section, and then the air inlet flow is adjusted. Technicians in the field can realize stepless adjustment through non-positioning adjustment, and can also set a plugging block for limiting to perform multi-gear adjustment. The invention further provides a complete assembly manufacturing method and a cryosurgical device applying the assembly.

An improved cryosurgery design and method of use are proposed. According to embodiments disclosed herein, an improved cryosurgery may include a handle configured to be connected to one or both of a cryotherapy supply line and an vent line. The handle may be configured to be detachably connected to a needle attachment comprising an inner lumen and an outer sheath; when the needle attachment is coupled to the handle, the inner lumen and outer sheath are operatively coupled to receive a flow of cryotherapy fluid from a cryotherapy source to perform intralesional cryotherapy. In some embodiments, the needle assembly may be configured to be detachable, disposable, or non-reusable in more than one cryotherapy procedure. Alternatively, the improved cryosurgery may include an inner lumen with orifices along its length. Further, an improved cryosurgery may additionally or alternatively include an outer sheath with a solid tip.

The technical objective of this invention is to provide a protective pad against skin conditions. Destroyed by extreme cold for the cryolipolysis process, where the component... Waterproofing may be provided to prevent tearing or with waterproof components and base parts. It may be prevented from separating during the negative pressure process and Waterproof components can be easily attached to the base components without defects. In this case, a protective pad is used to prevent skin damage from extreme cold during the fat breakdown process. This invention's cooling agent is a protective pad against frostbite that is designed to prevent skin damage. The design is intended for use in cryolipolysis (fat freezing) procedures utilizing a fat-dissolving device. Cooling and protective padding against frostbite will include a base component made of... Made from fibrous materials, one or more waterproof components made from resin materials, and... It is placed by overlapping the base components and one or more stitched sections that are made by... Sew the base assembly and the waterproof assembly together to connect the base assembly and the waterproof assembly. Waterproof in a condition where the base component and the waterproof component are superimposed;

The invention relates to a cryosurgical device and method that makes the application of cryogen to a targeted skin lesion on the surface of the skin for treatment more efficient and safer through the use of thermochromic principles. The thermochromic material within the cryosurgical device informs the operator when the cryosurgical device is ready to be used via a visual change of color in reaction to temperature changes. This color change prevents under or over dispensation of cryogen to the targeted skin lesion to allow for efficient yet safe treatment. After treatment of the area, the frozen tissue will necrose and slough off after a period of time and the thermochromic material will return to its original color.

A cryoprotective composition configured to be applied during cryotreatment of a patient includes at least one biodegradable and / or bioerodible fluid agent and at least one non-toxic cryoprotectant agent. A therapeutically effective amount of the cryoprotective composition deposited in a body space of the patient in proximity to the cryotreatment remains within at least a portion of the body space for a duration of the cryotreatment. At least a portion of a body tissue proximate to the body space is viable after the cryotreatment. A method of protecting a surgical site during prostate cryosurgery is also provided. The method includes injecting a therapeutically effective amount of the cryoprotective composition into the body space, wherein the body space is a periprostatic space of a patient.

Embodiments herein relate to cryoablation systems. In an embodiment a cryosurgery system includes a cryoablation probe and a line set. The system can include a probe connector configured to sealingly connect the line set to the cryoablation probe. The probe connector can have a main body having a main body distal end configured to sealingly connect to the cryoablation probe. The probe connector can have main body central portion configured to sealingly fit within the line set return tube. The probe connector can have a main body proximal end having a protrusion. The probe connector can have a coupling body configured to sealingly connect the line set supply tube. The coupling body is configured to fit around the main body proximal end such that the protrusion of the main body engages with the slot of the coupling body.

The invention relates to a reference positioning marker (5) for radiotherapy or microwave therapy or cryosurgery or ultrasound therapy adapted to be implanted in tissue using a hollow injection needle (4), wherein the marker comprises an elongated object having a longitudinal axis (CL) and having a cross section (A-A, B-B, C-C, D-D, E-E, F-F) perpendicular to said longitudinal axis (CL) adapted to fit within an inner diameter (DI) of the needle (4), wherein the marker (5) comprises a plurality of first sections (1) having a first cross section and one or more second sections (2) having a second set of cross sections, wherein the area of the first cross section is selected to be relatively larger than the area of the second set of cross sections, and wherein the first sections (1) and the second sections (2) are arranged alternatingly with each other along the longitudinal axis (CL), wherein one or more of the second sections (2) are provided with one or more deformation sections (22) adapted to ensure that any deformation of the plurality of second sections when positioned inside the needle occurs in predetermined locations between adjoining first sections, such that the plurality of first sections remain linearly aligned in the injection needle when the marker encounters resistance during implantation into the tissue.

A cryosurgical system includes a probe system including a cryosurgical probe and a temperature probe; an imaging system; and a computer system operatively connected to the probe system and the imaging system and programmed with a graphical depth guide application that provides a graphical overlay on an image from the imaging system that includes a first scale of first spaced markers representing temperature of the temperature probe and a second scale of second spaced markers representing a distance from the cryosurgical probe to an imaging probe of the imaging system that provide a visual guide for locating the cryosurgical probe during surgery.

A surgical kit for providing a cryoprotective composition configured to be applied during cryotreatment of a patient includes: a first container containing a predetermined amount or volume of a biodegradable and / or bioerodible fluid agent; and a second container containing a predetermined amount or volume of a non-toxic cryoprotectant agent. The predetermined amount or volume of the of biodegradable and / or bioerodible fluid agent and the predetermined amount or volume of a non-toxic cryoprotectant agent are configured to be mixed together to form the cryoprotective composition in which a therapeutically effective amount of the cryoprotective composition deposited in a body space of the patient in proximity to the cryotreatment remains within at least a portion of the body space for a duration of the cryotreatment and at least a portion of a body tissue proximate to the body space is viable after the cryotreatment.

A cryoprotective composition configured to be applied during cryotreatment of a patient includes at least one biodegradable and / or bioerodible fluid agent and at least one non-toxic cryoprotectant agent. A therapeutically effective amount of the cryoprotective composition deposited in a body space of the patient in proximity to the cryotreatment remains within at least a portion of the body space for a duration of the cryotreatment. At least a portion of a body tissue proximate to the body space is viable after the cryotreatment. A method of protecting a surgical site during prostate cryosurgery is also provided. The method includes injecting a therapeutically effective amount of the cryoprotective composition into the body space, wherein the body space is a periprostatic space of a patient.

The invention relates to the technical field of medical apparatuses and instruments, and discloses a low-temperature anti-sticking radio frequency plasma electrode for surgery and a use method of the low-temperature anti-sticking radio frequency plasma electrode. An outer airbag; and an inner airbag. The high-frequency energy selective conducting layer, the flexible ceramic insulating and heat-insulating layer and the low-surface-energy anti-sticking layer are sequentially arranged outside the electrode tool bit to form a composite functional coating, selective conduction and gathering of high-frequency energy, effective inhibition of heat diffusion and remarkable reduction of tissue adhesion are achieved, and therefore high-efficiency and continuous cutting is guaranteed, and the service life of the electrode tool bit is prolonged. The tissue interface temperature is controlled at a low level, carbonization is relieved, and the thermal damage bandwidth is reduced.

The invention belongs to the field of medical instrument research / manufacturing, particularly relates to a cryoprobe and a communication structure and a fastening structure thereof, and aims to improve the assembly efficiency, the sealing performance and the operation convenience of cryosurgery equipment. The communicating part is in a cylinder design and comprises a center hole, a side hole, a connecting hole and a radial hole, gas circulation and separation of the inner pipe and the outer pipe are achieved, sealing and stability are guaranteed through three-stage hole opening and a connecting sleeve, and the radial hole blocking step is omitted. The tail end connecting pipe optimizes the airflow path through the inner pipe, the outer pipe and the supporting piece which are distributed in a staggered mode. The fastening structure supports rapid disassembly and assembly through a lock pin, a locking hole / groove and a spring mechanism, cleaning and disinfection are convenient, and meanwhile the high-pressure airflow connection strength is guaranteed. The freezing head is made of metal and heat insulation non-metal composite materials, healthy tissue is protected through partition design and an adjustable freezing area, and the requirements of different lesion areas are met.

Embodiments herein relate to cryoablation systems. In an embodiment, a cryosurgery system is included having a cryoablation probe assembly having a supply tube, and a return tube surrounding the supply tube. The cryosurgery system can include a console having a cryoablation probe port and a console connector configured to sealingly connect the cryoablation probe assembly to the cryoablation probe port. The cryosurgery system can include a console connector having a main body configured to sealingly connect to a proximal end of the return tube, a supply line adaptor configured to sealingly connect to a proximal end of the supply tube, and a clip. The clip can be configured to couple the supply line adaptor to the main body by fastening into a clip receiving structure of an inner surface of the main body.

Cryosurgery system comprising a display device (1), an input device (2), a host computer (3), a power supply (4), a control board (5), a relay board (6), a control gas route (7), an ablation needle (8), an argon source (9) and a helium source (10), wherein the control gas route (7) comprises a first dynamic pressure control module (71), a pressure relief valve combination (72), a second dynamic pressure control module (73) and a booster pump together with its valve combination (74), wherein the display device (1) and the input device (2) are each electrically connected to the host computer (3), wherein the control board (5) is electrically connected to the host computer (3), wherein an input end of the control board (5) is electrically connected to the first dynamic pressure setting module (71), the pressure relief valve combination (72), the second dynamic pressure setting module (73), the booster pump together with its valve combination (74) and the ablation needle (8), wherein an output end of the control board (5) is electrically connected to an input end of the relay board (6), wherein an output end of the relay board (6) is electrically connected to the first dynamic pressure setting module (71), the pressure relief valve combination (72), the second dynamic pressure setting module (73), solenoid valves in the booster pump together with their valve combination (74) and the ablation needle (8), wherein the power supply (4) is electrically connected to the host computer (3), the control board (5) and the relay board (6), and the argon source (9) is connected to gas inlets of the first dynamic pressure setting module (71) and the pressure relief valve combination (72), wherein the helium source (10) is connected to a gas inlet of the second dynamic pressure control module (73), and wherein gas outlets of the first dynamic pressure setting module (71), the pressure relief valve combination (72), the second dynamic pressure setting module (73) and the booster pump together with their valve combination (74) are each connected to a gas inlet of the ablation needle (8).

The application belongs to the field of medical instrument research / manufacture, and particularly relates to a shunt structure, a double-cannula and a fastening method thereof, and a pipeline structure, more particularly to a shunt structure of a double-cannula, a double-cannula and a fastening method thereof, and a partial pipeline structure of a cryosurgery device. The shunt structure comprises a porous base, a sleeve type connecting seat and a shunt connecting seat, independent shunting of an inner tube (high pressure supply) and an outer tube (return channel) is realized through an internal communication pipe and an adapter hole, and gear adjustment is supported. The double-cannula design comprises a connecting head (integration part and connecting part), the integration part adopts an integrated head, a connecting pipe and an elastic seal to ensure integration of the inner tube and the outer tube; the connecting part uses a connecting sleeve and a positioning pin to provide fastening and alignment. The inner tube is connected with the integrated head by extrusion of an elastic fastener; the connecting sleeve is screwed to the base to realize reliable fixing of the high pressure pipeline. The method is applied to the pipeline structure, and the flexibility is enhanced in combination with the outer tube sheath.

A cryosurgery system, comprising two or more cryoprobes is provided. Each cryoprobe includes a probe shaft having a distal section insertable in a patient and a proximal coupler. A connector interface with connection ports permits connections to a corresponding cryoprobe. Each connection port can have an isolating sleeve between the proximal coupler and the connection port when the proximal coupler of the respective cryoprobe is inserted in the connection port. The isolating sleeve can include an electrically insulating material so as to electrically isolate each cryoprobe connected to its corresponding connection port from other cryoprobes connected to their corresponding connection ports. An electrical measurement system can be connected to each connection port to detect electrical signals associated with the probe shaft. A control system can detect, based on the electrical signals detected by the electrical measurement system whether the probe shaft is electrically connected to the electrical heater.

A tool for cryosurgery for handling tissue is disclosed, which is particularly suited for ophthalmic applications. The tool for cryosurgery (1) comprises a tubular body (2), a container (3) positioned within the tubular body (2) for holding cryogenic fluid and a treatment tip (4) connected to a distal end (2a) of the tubular body (2). A capillary (5) for transporting cryogenic fluid from the container (3) to the treatment tip (4) is also provided. The treatment tip (4) comprises a closed off end tip (6) and a shaft (7) of thermally insulating material having an inner lumen (8) with a diameter (dl) which is larger than an outer diameter (do) of the capillary (5), the shaft (7) being sealingly coupled to the closed off end tip (6).

Embodiments herein relate to cryoablation systems. In an embodiment, a cryosurgery system is included having a cryoablation probe assembly having a supply tube, and a return tube surrounding the supply tube. The cryosurgery system can include a console having a cryoablation probe port and a console connector configured to sealingly connect the cryoablation probe assembly to the cryoablation probe port. The cryosurgery system can include a console connector having a main body configured to sealingly connect to a proximal end of the return tube, a supply line adaptor configured to sealingly connect to a proximal end of the supply tube, and a clip. The clip can be configured to couple the supply line adaptor to the main body by fastening into a clip receiving structure of an inner surface of the main body.