Surgery – Truss – Pad
Patent
1993-03-04
1994-10-25
Hindenburg, Max
Surgery
Truss
Pad
A61B 1000
Patent
active
053579747
ABSTRACT:
A surgical instrument for performing tissue biopsies with a single tissue penetration. The elongated instrument comprises a hollow aspirate needle for aspirating bone marrow fluid, a hollow biopsy needle telescoped within the aspirate needle, and a solid stylet removably telescoped within the biopsy needle, all of which coaxially fit together. The stylet comprises a sharp distal end extending outwardly from the biopsy needle for initially penetrating body tissue and occluding the interior of the biopsy needle. The biopsy needle comprises a distal end normally projecting from the aspirate needle for thereafter penetrating a bone and obtaining a solid bone marrow sample. The bulbous, biopsy needle distal end is sharpened for captivating a specimen. It has a pair of relief slots dividing it into bulbous halves that are compressed together when the needle coaxially moves through the aspirate needle after withdrawal from tissue.
In operation, the instrument is first inserted through skin and muscle tissue to the bone surface. The stylet is then withdrawn. As the instrument subsequently penetrates the cortical bone and enters the bone marrow cavity, the biopsy needle fills with a tissue sample. The biopsy sample is captivated by compression of the bulbous portion as that needle segment is removed. Afterwards, the outer, aspirate needle that remains in place in the bone is suctioned by an attachable syringe, and liquid bone marrow from the marrow cavity is aspirated into the syringe.
REFERENCES:
patent: 3175554 (1965-03-01), Stewart
patent: 3598108 (1971-08-01), Jamshidi
patent: 4630616 (1986-12-01), Tretinyak
patent: 4655226 (1987-04-01), Lee
patent: 5226426 (1993-07-01), Yoon
Bethell John P.
Carver Stephen D.
Hindenburg Max
Keisling Trent C.
Robinson Thomas F.
LandOfFree
Bone marrow biopsy instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bone marrow biopsy instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bone marrow biopsy instrument will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-128691