Patent application number | Description | Published |
20110184402 | Flexible Cryogenic Probe Tip - One embodiment of the invention is a flexible cryogenic probe tip. The flexible probe tip has a linear freeze zone at a distal end of the probe that allows for its placement and precisely controlled movements. The flexible cryogenic probe tip precisely conforms to the target tissue surface to create a linear lesion. In addition, the probe tip is steerable to facilitate proper placement with minimal access points into a patient's body. Various configurations of the flexible probe tip allow it to conform and ablate tissue of many sizes, shapes, and/or dimensions. Methods of utilizing the cryogenic probe tip include steps of positioning the distal end at a tissue site for at least one ablative procedure, maneuvering the distal end to the tissue site, directing a cryogen from the supply source to the distal end, controlling a flow of cryogen from the supply source to the distal end and back to the supply source, and segmenting control of the distal end mechanically or through the step of controlling the flow of cryogen. | 07-28-2011 |
20110225988 | Multi-Lumen Axial Cryogenic Connector - An embodiment of the invention is a cryo-connector, a connector that allows for the delivery and return of a cryogen in an axial configuration. In one embodiment, the connector is a tri-axial configuration allowing for the delivery and return of pressurized cryogen as well as the application of an independent vacuum in the third lumen. Various configurations, however, may accommodate any number of luminary spaces such that cryogen (or other fluids) and/or vacuum spaces may be created in a fashion complementary to the components that the connector will affix to and interconnect with. The connectors can be utilized with any low temperature, cryogenic device and at varying pressures. | 09-22-2011 |
20130104993 | SYSTEMS AND METHODS FOR VARIABLE INJECTION FLOW | 05-02-2013 |
20130110099 | SYSTEMS AND METHODS FOR VARIABLE INJECTION FLOW | 05-02-2013 |
20130197497 | BALLOON CATHETER - A medical device including a catheter body defining a proximal portion and a distal portion. An expandable element is included defining a proximal end and a distal end, the proximal end being coupled to the distal portion of the catheter body. A tip element coupled to the distal end of the expandable element is included, the tip element including a shaft slideably receivable within a portion of the catheter body. A tensioning element coupled to the shaft and disposed within the expandable element is included, the tensioning element being engageable with the distal end of the catheter body and biasing the expandable element toward a pre-determined longitudinal position. An electrode array defining a substantially closed loop affixed to and extending from the tip element is also included. | 08-01-2013 |
Patent application number | Description | Published |
20120029493 | DUAL INJECTION TUBE CRYOCATHETER AND METHOD FOR USING SAME - A medical device includes a catheter body having a first injection lumen, a second injection lumen, and an exhaust lumen, where the first injection lumen provides a fluid flow rate greater than a fluid flow rate provided by the second injection lumen; an expandable element coupled to the catheter body in fluid communication with the first and second injection lumens; a cryogenic fluid source in fluid communication with the first and second injection lumens; a valve in fluid communication with the first and second injection lumens to selectively allow fluid flow to at least one of the first and second injection lumens; a pressure sensor in fluid communication with an interior defined by the expandable element; and a controller in communication with the pressure sensor programmed to regulate fluid flow through the first injection lumen based at least in part on a signal from the pressure sensor. | 02-02-2012 |
20130110100 | SYSTEMS AND METHODS FOR VARIABLE INJECTION FLOW | 05-02-2013 |
20130197496 | CRYO SENSITIZING AGENTS FOR THE ENHANCEMENT OF CRYOTHERAPY - A method and device for treating tissue with temperature-sensitizing adjuvants to enhance the effects of ablation therapy. The method may comprise identifying tissue to receive ablation therapy, treating the tissue with a temperature-sensitizing agent, and activating an ablation therapy device proximate the treated tissue. The device may comprise a cryo-sensitizing adjuvant operable in association with a cryotherapy device, the cryo-sensitizing adjuvant enhancing the effectiveness of tissue destruction upon application of temperatures below 0° C. | 08-01-2013 |
20130197498 | LARGE AREA CRYOABLATION CATHETER WITH MULTI-GEOMETRY TIP ECG/CRYO MAPPING CAPABILITIES - A medical device including an ablation element. A thermally insulative sheath is included disposed within the ablation element. A fluid injection tube is disposed within a portion of the thermally insulative sheath. The ablation element passively transitions from a substantially linear geometric configuration to a substantially circular geometric configuration as the sheath is retracted proximally from a first position in which the sheath substantially encloses the fluid injection tube to a second position in which a portion of the fluid injection tube extends a distance away from the sheath. | 08-01-2013 |