Neurosurgical device for thermal therapy

• US 6,923,826 B2
• Filed: 09/11/2003
• Issued: 08/02/2005
• Est. Priority Date: 10/05/2000
• Status: Expired due to Fees

• Current Assignee: Seacoast Technologies, Inc.
• Original Assignee: Seacoast Technologies, Inc.
• Inventors: Sachs, Dan, Larnard, Donald J.
• Primary Examiner(s): Gibson, Roy D
• Assistant Examiner(s): Johnson, III, Henry M
• Application Number:
  US10/660,157
• Publication Number:
  US 20040049250A1
• Time in Patent Office: 691 Days
• Field of Search: 607105-113
• US Class Current: 607/105
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61F 2007/0054 with a closed fluid circuit, e.g. hot water
• CPC Class Codes: A61F 2007/0056 for cooling
• CPC Class Codes: A61F 2007/0075 using a Peltier element, e.g. near the spot to be heated or cooled
• CPC Class Codes: A61F 2007/101 for cooling organs in the body before or during surgery
• CPC Class Codes: A61F 2007/126 for invasive application, e.g. for introducing into blood vessels
• CPC Class Codes: A61F 7/12 Devices for heating or cooling internal body cavities
• CPC Class Codes: A61F 7/123 using a flexible balloon containing the thermal element

Abstract

A device for thermally affecting tissue of a patient includes a housing defining an interior volume that is at least partially insertable into an exterior opening in a patient. A thermal member positioned within the interior volume of the housing includes a thermal input side and a thermal output side to impart a thermal change to the tissue.

Claims

1. A neurosurgical device for thermally affecting interior cranial tissue of a patient, the device comprising:

a housing, the housing defining an interior volume and being at least partially insertable into an exterior opening in the patient; and

a thermal member having a thermal input side and a thermal output side, at least a portion of the thermal member being positioned within the interior volume, one of the thermal input side and the thermal output side being arrangable to provide a temperature different than the other of the thermal input side and the thermal output side, the thermal input side imparting a thermal change to the interior cranial tissue.

2. The device of claim 1, further comprising, a contact member being in thermal communication with the thermal input side of the thermal member and being in thermal communication with the interior cranial tissue.

3. The device of claim 2, further comprising a membrane for contact with the interior cranial tissue, the membrane being in thermal contact with the contact member.

4. The device according to claim 2, wherein the contact member is configured to directly contact internal cranial tissue to be treated.

5. The device of claim 1, further comprising a surface area expansion element, the surface area expansion element having an interior volume which is fillable with a thermally-transmissive fluid, the thermally-transmissive fluid being in thermal communication with the thermal member.

6. The device according to claim 5, wherein the surface area expansion element has a width measured at a widest part and a height measured from a top to a tissue contact area, the width being at least twice the height.

7. The device according to claim 6, further comprising a fluid circulation element, the fluid circulation element including a circulation member and a distribution member.

8. The device according to claim 7, wherein the circulation member is a pump and the distribution member is at least one injection member.

9. The device according to claim 1, wherein the thermal member is configured to directly contact internal cranial tissue to be treated.

10. The device according to claim 1, further comprising a protective barrier, the protective barrier being disposed on and being in thermal communication with the thermal member.

11. The device according to claim 1, further comprising a pressure sensor, the pressure sensor measuring a pressure of the interior cranial tissue to be treated.

12. The device according to claim 1, further comprising a temperature sensor, the temperature sensor measuring a temperature of the interior cranial tissue to be treated.

13. A device for thermally affecting tissue, comprising:

a thermal member having a thermal input side and a thermal output side;

a thermal cartridge, the thermal cartridge having a cartridge wall defining an interior surface for receiving the thermal member;

an insert housing, the insert housing having an insert wall defining an inner volume configured to slidably receive the thermal cartridge and the insert housing being configured to fit within an opening in a patient;

a contact member in thermal communication with the thermal input side of the thermal member; and

a thermal bridge provided between and in thermal communication with the thermal member and the contact member.

14. A device for thermally affecting tissue, comprising:

a thermal member having a thermal input side and a thermal output side;

a thermal cartridge, the thermal cartridge having a cartridge wall defining an interior surface for receiving the thermal member;

an insert housing, the insert housing having an insert wall defining an inner volume configured to slidably receive the thermal cartridge and the insert housing being configured to fit within an opening in a patient;

a thermal dissipation member in thermal communication with the thermal member; and

a thermal bridge provided between and in thermal communication with the thermal member and the thermal dissipation member.