90 results about "Cryosurgery" patented technology

Systems and methods for planning a cryoablation procedure and for facilitating a cryoablation procedure utilize integrated images displaying, in a common virtual space, a three-dimensional model of a surgical intervention site based on digitized preparatory images of the site from first imaging modalities, simulation images of cryoprobes used according to an operator-planned cryoablation procedure at the site, and real-time images provided by second imaging modalities during cryoablation. The system supplies recommendations for and evaluations of the planned cryoablation procedure, feedback to an operator during cryoablation, and guidance and control signals for operating a cryosurgery tool during cryoablation. Methods are provided for generating a nearly-uniform cold field among a plurality of cryoprobes, for cryoablating a volume with smooth and well-defined borders, thereby minimizing damage to healthy tissues.

The present invention relates to devices and methods for cryosurgery. More particularly, the present invention relates to a cryoprobe which does not form strong adhesive or mechanical bonds with body tissues when such tissues are frozen by cooling action of the probe. Embodiments of the present invention include a cryoprobe having a distal cooling module with an outer surface layer of non-polar molecules, a probe having a distal cooling module with a microscopically smooth outer surface, and a cryoprobe comprising a mechanism for coating a distal cooling module thereof with non-polar lubricant during movement of the cryoprobe within body tissues of a patient. Also presented are methods utilizing disclosed cryoprobes to facilitate cryosurgery and to enhance accuracy of cryoablation of user-selected cryoablation targets.

Novel compositions and methods and pharmaceutical compositions for altering skin coloration. The methods include administering a cytokine to a dermal region desired to be altered. The cytokine is formulated for local administration. The cytokine is preferably administered in conjunction with a therapeutic procedure. The therapeutic procedure is preferably selected from the group consisting of excision, dermabrasion, laser therapy, cryosurgery, grafting, camouflaging, scarification, and salabrasion.

Combination therapies for reducing the appearance of fine lines and wrinkles on aged skin or non-precancerous, normal photodamaged section of skin, in a patient not being treated for viral infection or skin cancer comprising (i) topical application of an imidazoquinoline amine derivative in a dermatologically-acceptable carrier in further combination with one or more cosmetic treatments selected from the group consisting of: (i) Light Emitting Diode (L.E.D.) Light Therapy; (ii) Intense Pulsed Light (I.P.L.) Therapy; (iii) laser skin resurfacing; (iv) mechanical exfoliation; (v) superficial, medium depth or deep chemical peels; (vi) radiofrequency treatment; (vii) ultrasound treatment; (viii) intradermal and intraepidermal injections with hyaluronic acid and derivatives thereof; and (ix) cryosurgery.

The invention relates to a method, a cryosurgical probe, and a cryosurgical instrument for freezing a lesion on biological tissue. The method involves repeated cycles of freezing and thawing of the tissue to ensure maximum treatment effectiveness. The cryosurgical probe may be positioned on an end of a cryosurgical instrument, and facilitates the freezing of a lesion on biological tissue via the evaporation of a refrigerant. The cryosurgical probe includes a receiving end, a hollow portion, and a tissue contact end. The receiving end is adapted to receive the refrigerant. The tissue contact end includes an orifice adapted to expose the lesion to the refrigerant, and preferably includes a guard portion adapted to prevent excessive exposure of the biological tissue surrounding the lesion to the refrigerant. The hollow portion allows the flow of refrigerant from the receiving end to the tissue contact end, and includes at least one exhaust port.

The present invention relates to devices and methods for planning and supervising minimally invasive surgery. Included are enhancements to systems for planning, monitoring, and controlling cryosurgery.

The present invention is of systems and methods for MI-guided cryosurgery. The systems enable a surgeon positioned next to a patient and within an MRI, magnetic environment both to monitor progress of a cryosurgical intervention by observing MRI images of the intervention in real time, and to fully control aspects of operation of a cryosurgery Apparatus by remotely controlling a fluid supply source positioned external to that magnetic environment, which fluid supplies cryogenic fluids to cryoprobes operable within that magnetic environment, thereby enabling real-time MRI-guided control of a cryoablation process. A preferred embodiment enables calculation and display of borders of an ablation volume surrounding a cooled cryoprobe in real time, and, further enables automatic control of elements of a cryoablation procedure, which elements are triggered when shape and position of that calculated ablation volume are found to bear a predefined relationship to the shape and position of a predefined treatment target.

A cryosurgical probe system includes a fluid supply line connectable at an inlet section to a source of cryogenic fluid; a fluid connector assembly securely connected to an outlet section of the fluid supply line for receiving fluid from the outlet section of the fluid supply line; and, a detachable cryosurgical probe detachably connectable to the fluid connector assembly. The cryosurgical probe system includes the capability of providing return fluid flow.

An improved cryosurgical system for application of medical-grade liquid nitrogen to a treatment area via a small, low pressure, open tipped catheter. The system includes a console, including a touch panel computer, a cryogen module, a suction module and an electronics module, all packaged in a mobile cart, and a disposable spray kit. Improved features include optional low cryogen flow setting to reduce the cryogen flow rate by 50%, improved cryogen flow consistency reducing pressure pulses and peaks (improved sensors, control systems, and control algorithms), an integrated suction pump for improved consistency and self-checks, specified vent tube areas and corresponding maximum expected pressures during cryospray procedure; optional pressure sensing capability to monitor pressure during a treatment, and improved catheter design.

The present invention relates to devices and methods for measuring tissue temperature during thermal treatment of a body. More particularly, the present invention relates to a thermal probe comprising a plurality of thermal sensors operable to measure tissue temperatures during thermal treatments such as cryosurgery. Embodiments of the invention enable simultaneous measurements, using a single probe, of temperatures at a plurality of positions within body tissues. A preferred embodiment enables movement of sensors with respect to tissues while the probe is immobilized by being embedded in frozen tissue.

A cryosurgery system for application of medical-grade liquid nitrogen to a treatment area via a small, low pressure, open tipped catheter. The system includes a console, including a touch panel computer, a cryogen module , a suction module and an electronics module, and a disposable spray kit. Features include optional low cryogen flow setting to reduce the cryogen flow rate by 50%, improved cryogen flow consistency reducing pressure pulses and peaks, an integrated suction pump for improved consistency and self-checks, specified vent tube areas and corresponding maximum expected pressures during cryospray procedure; optional pressure sensing capability to monitor pressure during a treatment, and novel catheter designs of multilayer and flexible construction providing a variety of spray patterns.