RF shielding cover for RF radiating applicator

• US 7,579,555 B2
• Filed: 11/14/2005
• Issued: 08/25/2009
• Est. Priority Date: 09/17/1999
• Status: Expired due to Fees

• Current Assignee: Regenesis Biomedical Incorporated
• Original Assignee: Regenesis Biomedical Incorporated
• Inventors: Daly, Michael F., Loya, Arthur A., Bryant, Robert T., Ritz, Mary C., George, Frank R.
• Primary Examiner(s): Ngo; Hung V
• Application Number:
  US11/272,983
• Publication Number:
  US 20080093119A1
• Time in Patent Office: 1,380 Days
• Field of Search: 174/35.R, 174/35.MS, 174/378, 174/382, 174/388, 174/390, 361/816, 361/818, 361/800, 607/115
• US Class Current: 174/378
• CPC Class Codes: A61N 1/16 Screening or neutralising undesirable influences from or using, atmospheric or terrestrial radiation or fields using atmospheric electricity or earth currents H05F3/00
• CPC Class Codes: A61N 1/326 for promoting growth of cells, e.g. bone cells
• CPC Class Codes: A61N 1/40 Applying electric fields by inductive or capacitive coupling microwave apparatus A61N5/00; Applying radio-frequency signals
• CPC Class Codes: G21H 1/00 Arrangements for obtaining electrical energy from radioactive sources, e.g. from radioactive isotopes , nuclear or atomic batteries

Abstract

A disposable cover for electromagnetic treatment applicators prevents undesired exposure to potentially harmful radiation. The cover is a pouch-like structure having a back surface constructed from RF shielding material, such as metallized polyethylene, which back surface faces opposite, or away from, the treatment area. A portion of the cover which faces the treatment area is constructed from material transmissive to RF radiation from the applicator. Securing means, such as adhesive strips, or interlocking edges close an open end to secure the applicator inside the cover and to prevent RF radiation through the closed end. In use, an applicator is inserted within the cover and positioned over the area to be treated with the RF transmissive material overlying the treatment area. When the applicator is activated, the generated electromagnetic energy exits the cover only through the RF transmissive material to the treatment area and the RF shielding material prevents exposure of the caregiver to potentially harmful radiation.

Claims

1. A system comprising:

a radio frequency (RF) generator;

an electromagnetic treatment applicator attached to the RF generator with a cable; and

a disposable cover configured to cover the electromagnetic treatment applicator, the disposable cover having an open end, a front side, a back side opposite the front side, wherein the open end is configured to permit insertion and removal of the electromagnetic treatment applicator into and out of the disposable cover, wherein at least a portion of the back side of the disposable cover includes an RF shielding material having a capacitance, wherein the electromagnetic treatment applicator is configured to detect the presence of the disposable cover based on the capacitance.

2. The system of claim 1, wherein the electromagnetic treatment applicator is configured to send a signal to the RF generator to enable the RF generator when the presence of the disposable cover is detected.

3. The system of claim 2, wherein the RF generator is disenable when the signal is not sent by electromagnetic treatment applicator.

4. The system of claim 1, wherein the back side is formed entirely of RF shielding material.

5. The system of claim 4, wherein the RF shielding material is metallized polyethylene.

6. The system of claim 1, wherein at least a portion of the front side of the disposable cover is formed of an RF non-shielding material, and wherein the backside of the disposable cover is formed entirely of an RF shielding material.

7. The system of claim 1, wherein the disposable cover includes a tab portion configured to close the open end when the electromagnetic treatment applicator is inserted into the disposable cover.

8. A system comprising:

a radio frequency (RF) generator;

an electromagnetic treatment applicator attached to the RF generator with a cable, the electromagnetic treatment applicator having a first side and an opposite second side, wherein the first side is to be positioned adjacent a treatment area; and

a disposable cover configured to cover the electromagnetic treatment applicator, the disposable cover having an open end, a front side, a back side, wherein the open end is configured to permit insertion and removal of the electromagnetic treatment applicator into and out of the disposable cover, wherein the front side is configured to be positioned adjacent the first side of the electromagnetic treatment applicator when the electromagnetic treatment applicator is inserted into the disposable cover, and wherein the back side is configured to be positioned adjacent the second side of the electromagnetic treatment applicator when the electromagnetic treatment applicator is inserted into the disposable cover, wherein at least a portion of the front side of the disposable cover is formed of an RF non-shielding material, and wherein the backside of the disposable cover is formed entirely of an RF shielding material.

9. The system of claim 8, wherein at least a portion of the back side of the disposable cover includes an RF shielding material having a capacitance, wherein the electromagnetic treatment applicator is configured to detect the presence of the disposable cover based on the capacitance.

10. The system of claim 9, wherein the electromagnetic treatment applicator is configured to send a signal to the RF generator to enable the RF generator when the presence of the disposable cover is detected.

11. The system of claim 10, wherein the RF generator is disenable when the signal is not sent by electromagnetic treatment applicator.

12. The system of claim 9, wherein the back side is formed entirely of RF shielding material.

13. The system of claim 12, wherein the RF shielding material is metallized polyethylene.

14. The system of claim 8, wherein the disposable cover includes a tab portion configured to close the open end when the electromagnetic treatment applicator is inserted into the disposable cover.

15. The system of claim 14, wherein the tab portion includes an opening for the cable.

16. The system of claim 14, wherein the tab portion includes fasteners to close the open end.

17. A method of using an electromagnetic treatment device, the electromagnetic treatment device having a radio frequency (RF) generator and an electromagnetic treatment applicator attached to the RF generator with a cable, the electromagnetic treatment applicator having a first side and a second side opposite the first side, the method comprising:

inserting the electromagnetic treatment applicator into a disposable cover, the disposable cover having a front side and a back side opposite the front side, wherein at least a portion of the front side includes an RF non-shielding material, wherein at least a portion of the back side includes an RF shielding material, wherein the electromagnetic treatment applicator is inserted to have the front side of the disposable cover adjacent to the first side of the electromagnetic treatment applicator and the back side of the disposable cover adjacent to the second side of the electromagnetic treatment applicator;

positioning the electromagnetic treatment applicator with the first side of the electromagnetic treatment applicator adjacent to a treatment area, wherein RF energy is applied to the treatment area through the first side of the electromagnetic applicator, wherein the RF energy is transmitted through the portion of the front side of the disposable cover that includes RF non-shielding material, and wherein the RF energy is blocked by the portion of the back side of the disposable cover that includes RF shielding material;

removing the electromagnetic treatment applicator from the disposable cover after the RF energy has been applied to the treatment area; and

disposing the disposable cover after removing the electromagnetic treatment applicator from the disposable cover.

18. The method of claim 17, wherein the electromagnetic treatment applicator is configured to detect the presence of the disposable cover based on the capacitance, wherein the electromagnetic treatment applicator is configured to send a signal to the RF generator to enable the RF generator when the presence of the disposable cover is detected, and wherein the RF generator is disenable when the signal is not sent by electromagnetic treatment applicator.

19. The method of claim 17, wherein the back side is formed entirely of RF shielding material.