US 2018/0000465 A1Published application

Integrated painless bone marrow biopsy device

AssigneeYale University

InventorsElliott BROWN, Tamir FRIEDMAN

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Abstract

An apparatus and method for performing painless bone marrow biopsy that requires only a single procedural pass to the biopsy bone site is disclosed. The biopsy device combines dermatotomy, anesthesia and marrow specimen extraction functionality and inherently aligns the bone drilling site with the site of anesthetic delivery by incorporating a transport channel that may be used for anesthetic delivery, into the biopsy needle used for bone access and bone marrow sample retrieval. The biopsy device also discloses a right angle drill interface and multiple side-access ports for aspiration and anesthetic syringe attachments. A novel syringe/plunger system comprising vacuum tube fitted plungers for quick transfer of marrow specimen sample without requiring a second non-sterile assistant is also disclosed.

Claims20

Dependent claims

A device comprising:

a needle assembly comprising:
a hollow tubular sleeve having a hollow opening therethrough,
a stylet mounted in the hollow opening of the hollow tubular sleeve and having a first conduit therethrough, and
one or more side openings,
a liquid pressure generator in fluid communication with the first conduit and configured to apply pressure to liquid in the first conduit,
wherein when a container containing a liquid anesthetic agent is in fluid communication with the first conduit and the liquid pressure generator applies pressure to the liquid anesthetic agent, the liquid anesthetic agent is forced through the first conduit and out through one or more end-openings of the stylet, and
wherein when the device is inserted in bone marrow so that side openings are exposed to the bone marrow and a suction generator applies suction to a second conduit extending at least partway through the needle assembly, at least a portion of the bone marrow is withdrawn into the device through the side openings.

4 more elements

Dependencies are inferred from the claim text.