Skin biopsy plug and method

• US 5,394,886 A
• Filed: 09/20/1993
• Issued: 03/07/1995
• Est. Priority Date: 09/20/1993
• Status: Expired due to Fees

• Current Assignee: Homayoon Rahbari, Hossein Nabai
• Original Assignee: Homayoon Rahbari, Hossein Nabai
• Inventors: Rahbari, Homayoon, Nabai, Hossein
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US08/123,679
• Time in Patent Office: 533 Days
• Field of Search: 128/749, 128/753, 128/754, 604/15, 604/265, 606/108, 606/167, 606/170
• US Class Current: 600/567
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009

Abstract

A plug and method for controlling bleeding and repairing a circular wound caused by the excising of a specimen of skin from a patient with a biopsy punch. The plug is a cylindrical porous sponge made from a gelatin material which, when implanted into a wound, swells, absorbs blood and is completely absorbed by the patient with little tissue reaction. By completely filling the bleeding site, the plug promotes healing without the necessity of suturing. In the first aspect of the invention, a sterile cylindrical plug is provided having about the same diameter as the biopsy punch used for excising the specimen. In a second aspect of the invention, after a specimen has been excised with a biopsy punch, the cylindrical plug is cut from a pad of the gelatin material with the same punch and implanted into the wound.

Claims

1. The combination of a circular biopsy punch having a thin sharp cylindrical blade ranging in diameter from about two to six millimeters for excising a skin specimen from a patient and a thin cylindrical plug having about the same diameter as said punch for controlling bleeding and repairing a wound caused by the excising of said specimen, said plug being implanted into said wound after said excising of said specimen.

2. The combination as recited in claim 1 wherein said plug is made from a material which, when implanted into said wound, swells, absorbs blood and is absorbed completely by said patient.

3. The plug as recited in claim 1 wherein said sponge is a porous and pliable product made from purified pork skin.

4. A method for controlling bleeding and repairing a circular wound caused by the excising of a specimen of skin from a patient with a circular biopsy punch of about two to six millimeters in diameter comprising the step of implanting into said wound a thin cylindrical plug made from porous sponge of a gelatin material of about two to six millimeters in diameter which, when implanted into said wound, swells, absorbs blood and is completely absorbed by said patient.

5. A method for controlling bleeding and repairing a wound caused by the excising of a specimen of skin of about two to six millimeters in diameter from a patient with a circular biopsy punch comprising the step of cutting with a biopsy punch of about two to six millimeters in diameter a cylindrical plug from a porous sponge pad of a gelatin material which, when implanted into said wound, swells, absorbs and is completely absorbed by said patient;

and implanting said cylindrical plug into said wound caused by said excising of said specimen.

6. The method recited in claim 5 further comprising the step of applying pressure to said sponge for thirty to sixty seconds after said sponge has been implanted into said wound.

7. The method recited in claim 5 further comprising the step of applying a topical antibiotic ointment to said sponge and the area surrounding said sponge after bleeding has been controlled.

8. The method recited in claim 7 further comprising the step of applying a dressing over said excised area after said topical ointment has been applied.

9. The method recited in claim 8 further comprising the steps of removing said dressing and cleaning said excised area twice a day with rubbing alcohol or a hydrogen peroxide solution until healing has been completed.