JOSEPH J MAZZA, MD
Osteopathic Medicine at Townline Rd, Minocqua, WI

License number

Wisconsin 16711

Organization information

See more information about JOSEPH J MAZZA at bizstanding.com

Marshfield Clinic - Joseph J Mazza MD

1000 N Oak Ave #2F2, Marshfield, WI 54449

Categories:

Hematology Physicians & Surgeons

Phone:

(715) 387-5421 (Phone)

Professional information

Joseph John Mazza, Marshfield WI

Specialties:

Hematologist

Address:

1000 N Oak Ave, Marshfield, WI 54449
9601 Townline Rd, Minocqua, WI 54548

Education:

Loyola University Chicago, Stritch School of Medicine - Doctor of Medicine

Board certifications:

American Board of Internal Medicine Certification in Internal Medicine, American Board of Internal Medicine Sub-certificate in Hematology (Internal Medicine)

Biopsy Needle Construction

US Patent:

5005585, Apr 9, 1991

Filed:

Apr 24, 1989

Appl. No.:

7/342540

Inventors:

Joseph J. Mazza - Marshfield WI

Assignee:

Marshfield Clinic - Marshfield WI

International Classification:

A61B 1000

US Classification:

128754

Abstract:

A biopsy needle assembly comprising an outer tubular cannula having an angular distal end. The inner surface of the cannula adjacent the distal end is cylindrical and an end of the inner cylindrical surface opposite the distal end of the cannula is undercut to provide a sharp annular interior edge. A solid stylus is disposed within the cannula and has an angular distal end. The stylus is in sliding contact with the inner cylindrical surface of the cannula. When the needle assembly is inserted into engagement with the tissue to be removed a specimen is collected internally of the cannula and the sharp undercut interior edge secures the specimen within the cannula. After removal of the cannula from the tissue, a rod-like probe is inserted in the distal end of the cannula to push the specimen through the entire length of the cannula to remove the specimen intact.