Systems, Apparatus, Methods and Procedures for the Noninvasive Treatment of Tissue Using Microwave Energy

• US 20110040299A1
• Filed: 04/17/2009
• Published: 02/17/2011
• Est. Priority Date: 04/19/2007
• Status: Active Grant

• Current Assignee: miraDry, Inc. (Sientra Incorporated)
• Original Assignee: Miramar Labs, Inc. (Sientra Incorporated)
• Inventors: Francis, Daniel, Su, Ted, Salamini, Alexey, Johnson, Jessi E., Ben-Haim, Yoav, Chun, Dong Hoon, Kim, Steven
• Granted Patent: US 9,241,763 B2
• Time in Patent Office: Days
• US Class Current: 606/33
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 2017/00106 ultrasonic
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00291 using suction
• CPC Class Codes: A61B 2018/00452 Skin
• CPC Class Codes: A61N 5/04 Radiators for near-field treatment

Abstract

The present invention is directed to systems, apparatus, methods and procedures for the noninvasive treatment of tissue, including treatment using microwave energy. In one embodiment of the invention a medical device and associated apparatus and procedures are used to treat dermatological conditions using, for example, microwave energy.

Claims

1. A medical device disposable comprising:

a tissue chamber having a tissue opening at a distal end and a rigid surface surrounding said tissue opening;

an applicator chamber;

a flexible bio-barrier at a proximal end of said tissue chamber said flexible bio-barrier separating said tissue chamber and said applicator chamber, a portion of said flexible bio-barrier forming a tissue contacting surface;

a compliant member surrounding said tissue opening, said compliant member having a proximal opening adjacent said tissue opening and a distal opening, wherein said distal opening is larger than said proximal opening.

2. A medical device disposable according to claim 1 wherein said compliant member is positioned at an angle of approximately fifty-three degrees with respect to said rigid surface.

3. A medical device disposable according to claim 1 wherein said compliant member comprises a wall connecting said proximal opening and said distal opening, said wall being angled approximately fifty-three degrees with respect to said rigid surface.

4. A medical device disposable according to claim 1 wherein said compliant member further comprises an outer rim positioned around said distal opening.

5. A medical device disposable according to claim 4 wherein:

said outer rim extends a distance of approximately 0.033 inches from said distal opening;

said compliant member has a height of approximately 0.25 inches;

said tissue opening has a long axis and a short axis, said tissue opening long axis being approximately 1.875 inches and said tissue opening short axis being approximately 1.055 inches;

said distal opening in said compliant member has a long axis and a short axis, said distal opening long axis being approximately 2.429 inches and said distal opening short axis being approximately 1.609 inches;

said tissue contact surface having a long axis and a short axis, said long axis being approximately 1.54 inches and said short axis being approximately 0.700 inches.

6. A medical device disposable according to claim 4 wherein said wall is substantially straight.

7. A medical device disposable according to claim 1 wherein said compliant member comprises one or more alignment marks, at least one of said alignment marks being positioned on a long side of said compliant member.

8. A medical device disposable according to claim 7 wherein said alignment marks are positioned on a wall of said skirt and extend from approximately said rim toward said tissue opening.

9. A medical device disposable according to claim 7 wherein said alignment marks move with respect to an applicator positioned in said applicator chamber when said medical device disposable is pressed against tissue with sufficient pressure to compress said compliant member.

10. A medical device disposable according to claim 3 wherein said wall has a thickness of approximately 0.050 inches.

11. A medical device disposable according to claim 1 wherein said tissue chamber includes a chamber wall extending from said tissue opening to approximately said tissue contact surface, said wall including a substantially smooth, radiused surface.

12. A medical device disposable according to claim 11 wherein said radiused surface has a radius of approximately three-sixteenths of an inch.

13. A medical device disposable according to claim 1 wherein said compliant member has a durometer density rating of approximately A60.

14. A medical device disposable comprising:

a tissue chamber comprising a tissue contact surface at a proximal end of said tissue chamber and a tissue opening at a distal end of said tissue chamber;

an applicator chamber;

a flexible bio-barrier at a proximal end of said tissue chamber said flexible bio-barrier separating said tissue chamber and said applicator chamber, said flexible bio-barrier forming at least a portion of said tissue contact surface;

a vacuum port;

a vacuum circuit connecting said tissue chamber, said applicator chamber and said vacuum port, said vacuum circuit comprising a vacuum passage.

15-26. -26. (canceled)

27. A method of creating a lesion in skin, said method comprising the steps of:

positioning an apparatus including a plurality of antennas adjacent a skin surface;

supplying energy to a first antenna at a first power level for a first time period;

supplying energy to a second antenna at a second power level for a second time period;

supplying energy simultaneously to both said first antenna and said second antenna for a third time period, wherein, during said third time period said energy is supplied to said first antenna at a third power level and said energy is supplied to said second antenna at a fourth power level.

28-39. -39. (canceled)

40. A medical device applicator, said applicator comprising:

an antenna array including at least two antenna apertures;

at least one intermediate scattering element positioned outside said apertures;

said at least one intermediate scattering element being further positioned between said apertures.

41-52. -52. (canceled)

53. A medical device applicator comprising:

at least a first and a second waveguide antenna, each of said waveguide antennas comprising;

a dielectric core having four sides

metal plating on three sides of said dielectric core, said fourth side of said dielectric core forming an antenna aperture;

at least a first electrically conductive shim positioned between said waveguide antennas.

54-61. -61. (canceled)