CRYOSHEATH

• US 20100324546A1
• Filed: 07/09/2008
• Published: 12/23/2010
• Est. Priority Date: 07/09/2007
• Status: Abandoned Application

• Current Assignee: IceCure Medical Ltd.
• Original Assignee: IceCure Medical Ltd.
• Inventors: Levin, Alexander, Kaganovich, Miron, Toubia, Didier
• Application Number:
  US12/668,428
• Publication Number:
  US 20100324546A1
• Time in Patent Office: Days
• US Class Current: 606/24
• CPC Class Codes: A61B 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 2018/00017 with gas
• CPC Class Codes: A61B 2018/00041 Heating, e.g. defrosting
• CPC Class Codes: A61B 2018/0262 using a circulating cryogenic fluid

Abstract

A device, system and method for a cryoprobe which features a heating component for heating at least a proximal portion of the tip of the cryoprobe, thereby preventing damage to an adjacent portion of tissue.

Claims

1. A cryoprobe operating with a cryogen comprising:

an external shaft with an outlet connection for removal of gaseous cryogenic medium, said external shaft including an inner thermal insulation;

an internal feeding lumen located within said external shaft, said internal feeding lumen serving to transmit the cryogen and having an inlet connection for receiving the cryogen;

a cryotip joined with said external shaft and cooled with the cryogen transmitted by said internal feeding lumen;

a displaceable sheath, which comprises an envelope positioned with a gap around said external shaft; and

an inlet to said envelope for providing a warming gaseous medium into said gap.

2. The cryoprobe of claim 1, wherein said envelope comprises inward protrusions for providing a gap between said envelope and the external shaft.

10. A method for treating a tissue while preventing damage to an upper or superficial layer thereof, comprising:

treating a subject with a cryoprobe according to claim 1.

3. A cryoprobe operating with a cryogen comprising:

an external shaft with an outlet connection for removal of gaseous cryogenic medium, said external shaft including an inner thermal insulation;

an internal feeding lumen located within said external shaft, said internal feeding lumen serving to transmit the cryogen and having an inlet connection for receiving the cryogen;

a cryotip joined with said external shaft and cooled with the cryogen transmitted by said internal feeding lumen; and

a displaceable sheath mounted adjacent said external shaft, the sheath comprising a sliding tubular piece with an electrical heating coil adjacent said tubular piece for warming said tubular piece.

4. The cryoprobe of claim 3, further comprising an electrical cable for energizing said electrical heating coil from a power source.

5. The cryoprobe of claim 4, further comprising:

an external electro-insulation case, which protects said electrical heating coil.

6. The cryoprobe of claim 3, wherein a proximal section of said sliding tubular piece is provided with a fixation unit in order to fix location of said sliding tubular piece relative to said external shaft.

7. The cryoprobe of claim 6, wherein the fixation unit comprises a threaded opening in the proximal section of the sliding tubular piece and a screw in said threaded opening.

8. The cryoprobe of claim 3, wherein the electrical heating coil also provides for measuring temperature of the sliding tubular piece.

9. The cryoprobe of claim 3, wherein the displaceable sheath comprises a separate means for temperature measuring.