×

Bone marrow aspiration needle

  • US 4,356,828 A
  • Filed: 03/03/1980
  • Issued: 11/02/1982
  • Est. Priority Date: 03/03/1980
  • Status: Expired due to Term
First Claim
Patent Images

1. In combination with a bone marrow biopsy sampling device including a hollow needle, a stylet arranged to be removably disposed within the bore of said hollow needle and generally coextensive therewith, and with a sharpened cutting edge at the distal end of said hollow needle;

  • gripping means disposed about the proximal end of said hollow needle and comprising;

    (a) a generally solid finger-gripping member secured to said needle adjacent the proximal end thereof and being fast thereon, and with portions of said finger-gripping member extending laterally of said needle and having a needle-receiving bore formed generally along a first axis thereof and extending through said solid finger-gripping member,(b) said gripping means being of generally rectangular configuration having four faces aligned with the direction of said needle, the faces of a first opposite pair being generally plane and mutually parallel, and the faces of a second opposite pair intersecting the faces of said first pair and having grooves defined by concave cylinders, the base axes of one cylinder being parallel to the direction of said needle and the base axes of the other cylinder being orthogonal to said direction.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×