Medical applicator and method

• US 5,730,721 A
• Filed: 01/25/1996
• Issued: 03/24/1998
• Est. Priority Date: 01/25/1996
• Status: Expired due to Fees

• Current Assignee: Vesture Corporation (MRGB Hold Co.)
• Original Assignee: Vesture Corporation (MRGB Hold Co.)
• Inventors: Bostic, William M., Hyatt, Gary F.
• Primary Examiner(s): YASKO JR, JOHN D
• Assistant Examiner(s): Mehta, Bhisma
• Application Number:
  US08/591,726
• Time in Patent Office: 789 Days
• Field of Search: 604/20, 604/49, 604/19, 604/113, 604/114, 604/246, 604/890.1, 128/898, 602/45, 602/58, 607/108, 607/115, 424/427, 424/449
• US Class Current: 604/500
• CPC Class Codes: A61K 9/703 characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
• CPC Class Codes: A61M 35/003 Portable hand-held applicators having means for dispensing or spreading integral media hand-held massage devices with liquid delivery A61H7/003

Abstract

A medical applicator and method of use includes in one embodiment, a flexible envelope containing medicinal fluid which is delivered to the patient via apertures in the envelope. The envelope is formed from a flexible plastic material which can be heated in a microwave, electrical resistance or other ovens. Other embodiments may allow refrigeration of the medicinal fluids. A carrier envelope is provided in another embodiment to maintain the medicinal fluid at a desired temperature for prolonged periods of time. The medicinal fluids may be topical or may be formulated for transdermal treatment of the patient for analgesic purposes, antibiotic delivery or otherwise as desired.

Claims

1. A method of controlling body tissue temperature during administration of medication, said method comprising steps of:

(a) providing a medical applicator comprising a medicinal fluid containing envelope and a carrier envelope,

(i) said medicinal fluid containing envelope including a fluid egress surface and a peel away cover provided over the fluid egress surface, and having a medicinal fluid provided within the medicinal fluid containing envelope for medical treatment of body tissue,

(ii) said carrier envelope including a thermal storage material enclosed therein for thermal treatment of body tissue;

(b) heating the thermal storage material in the carrier envelope to a desired temperature for thermal treatment of body tissue,

(c) combining the medicinal fluid containing envelope and the carrier envelope;

(d) peeling the cover to expose the fluid egress surface and applying the exposed fluid egress surface to a portion of body tissue;

(e) releasing medicinal fluid from the medicinal fluid containing envelope through the fluid egress surface to provide application of medicinal fluid to the portion of body tissue;

(f) controlling the duration of medicinal fluid application.

2. A method of controlling tissue temperature during administration of medication according to claim 1, wherein the step of heating the thermal storage material includes heating by a microwave heating system.

3. A method of controlling tissue temperature during administration of medication according to claim 2, wherein the step of heating occurs for between one to two minutes.

4. A method of controlling tissue temperature during administration of medication according to claim 1, wherein the step of heating the thermal storage material includes heating by placement within an electrical resistance heating device.

5. A method of controlling tissue temperature during administration of medication according to claim 1, wherein the medicinal fluid includes a therapeutic agent and a carrier.

6. A method of controlling tissue temperature during administration of medication according to claims 1, wherein said steps releasing medicinal fluid and controlling body tissue temperature occur simultaneously.

7. A method of controlling tissue temperature during administration of medication according to claim 1, further comprising a step of storing the medical applicator in a sterile environment.

8. A method of controlling tissue temperature during administration of medication according to claim 1, further comprising a step of storing the medical applicator in an antiseptic environment.

9. A method of controlling tissue temperature during administration of medication according to claim 1, further comprising storing the medical applicator in an exterior tear-away package.

10. A method of controlling tissue temperature during administration of medication according to claim 1, wherein the thermal storage material comprises a paraffin emulsion.

11. A method of controlling tissue temperature during administration of medication according to claim 1, wherein the fluid egress surface comprises a pattern of apertures.