Patent · US Active

Bone marrow biopsy needle

US7384400B2 · kind B2 · utility

11Cited by
7References
18Claims
0Family size

Inventor

Key dates

Filing dateApr 30, 2007
Grant dateJun 10, 2008
Priority date—
Expiry dateApr 30, 2027

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B2017/32004
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A biopsy needle for removal of tissue from a patient includes an outer tube having a distal end that has an inner diameter (IDtip) and an inner tube within the outer tube and having an inner diameter (IDsc), defined at the distalmost section of the inner tube. The needle also includes a snare having a first end connected to the inner tube and a second end coupled to the outer tube. The snare has a variable diameter that is controlled by rotation of the inner tube with respect to the outer tube in a prescribed direction resulting in the opening and closing, respectively, of the snare. A ratio (R) defined as (IDsc)/(IDtip) is greater than 1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.