Rotary tissue removing instrument

• US 7,798,813 B1
• Filed: 11/20/2007
• Issued: 09/21/2010
• Est. Priority Date: 11/20/2007
• Status: Active Grant

• Current Assignee: Stephen K. Harrel
• Original Assignee: Stephen K. Harrel
• Inventors: Harrel, Stephen K.
• Primary Examiner(s): Rodriguez; Cris L
• Assistant Examiner(s): ROSEN, ERIC J
• Application Number:
  US11/986,150
• Time in Patent Office: 1,036 Days
• Field of Search: 433141-144, 433/118, 433/165, 433/215, 606 79- 85, 606/179, 606/180, 600562-568, 600/570, 33/30, 334/08, 336/39
• US Class Current: 433/215
• CPC Class Codes: A61C 3/02 Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
• CPC Class Codes: A61C 5/40 Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots

Abstract

A rotatable tissue removing instrument having a tissue engaging member. The tissue engaging member includes one or more prongs or barbs, or both, which grab the strands of granulation tissue and cause the tissue to be wrapped around the tissue engaging member. The granulation tissue continues to be wrapped around the tissue engaging member until pulled free from both the tooth and the bone.

Claims

1. A method of removing pieces of tissue from a body of tissue, comprising the steps of:

rotating a tissue removing instrument having a shank attached thereto;

inserting a tissue engaging portion of the tissue removing instrument into a gingival pocket to remove granulation tissue around a tooth;

causing the granulation tissue to be wrapped around the tissue engaging portion of the tissue removing instrument; and

wrapping the granulation tissue around the tissue engaging portion of the tissue removing instrument until the granulation tissue is pulled free from the tooth.

2. The method of claim 1, further including rotating the tissue removing instrument with an rpm greater than about 1,000.

3. The method of claim 1, further including rotating the tissue removing instrument with an rpm greater than about 9,000.

4. The method of claim 1, further including removing the granulation tissue wound around the tissue engaging portion of the tissue removing instrument by pulling the granulation tissue axially off the instrument.

5. The method of claim 1, further including removing the granulation tissue from the tooth without cutting the granulation tissue with a sharp edge of the tissue engaging portion of the tissue removing instrument.

6. A method of removing granulation tissue from bone to which a tooth is anchored, comprising the steps of:

inserting into a gingival pocket a tissue removing instrument having a tissue engaging member with one or more prongs;

rotating a tool to which the tissue removing instrument is attached;

moving the rotating tissue engaging member into contact with the granulation tissue so that the one or more prongs grab the granulation tissue;

causing the granulation tissue to be wrapped around the tissue engaging member of the instrument; and

wrapping the granulation tissue around the tissue engaging member of the instrument until the granulation tissue is pulled free from the bone and the tooth.

7. The method of claim 6, further including wrapping a mass of granulation tissue around the tissue engaging member.

8. The method of claim 7, further including removing the mass of granulation tissue from the tissue engaging member, and again engaging the tissue engaging member with the granulation tissue to remove subsequent portions from the bone until substantially all of the granulation tissue has been removed.

9. The method of claim 7, further including pulling the mass of granulation tissue wrapped around the tissue engaging member axially off the instrument, and slicing the mass of granulation tissue with a sharp edge of the tissue engaging member to facilitate removal of the mass of granulation tissue from the instrument.

10. The method of claim 6, further including disposing of the tissue removing instrument after a single use thereof in removing substantially all of the granulation tissue from a patient.