Mammal and fish biopsy dart
AssigneeTissuegrab Biopsy Systems LLC
InventorsMichael K. Musyl, Lianne McNaughton
Life of this patent
Estimating the term…
Abstract
A dart for use in gathering a tissue sample from an animal is disclosed. The dart has an adapter base for fastening to an elongated dart delivery shaft. The adapter base has a distal threaded end. A dart tip is threaded onto the adapter base. The dart tip has a sharpened tubular end portion for entering through skin of an animal and a cylindrical chamber portion for receiving and holding at least part of a tissue sample. The chamber portion has a proximal portion adapted to be removably fastened to the distal threaded end of the adapter base and a distal portion merging with the sharpened tubular end portion, wherein the dart tip is configured to hold and retain the tissue sample received within the chamber portion while the dart tip is withdrawn from the animal.
Claims20
A dart for use in gathering a biological tissue sample from a marine animal, the dart comprising:
- an adapter base for fastening to an elongated dart delivery shaft or striking device;
- a dart tip having a sharpened tubular end portion for entering through skin of a marine animal, when the dart tip is driven into the marine animal from a distance via the delivery shaft or striking device, and a chamber portion having an internal transverse cross-sectional diameter larger than an internal transverse cross-sectional diameter of the tubular end portion for collecting and holding a tissue sample, wherein the chamber portion has a proximal portion adapted to be fastened to the adapter base and a distal portion merging with the tubular end portion via a tapered collar portion and one or more openings through a side wall of the chamber portion;
- and
- one or more barbs formed in the chamber portion for preventing withdrawal of the tissue sample through the sharpened tubular end portion while the dart tip is withdrawn from the live marine animal.
A dart for use in gathering a biological tissue sample from a marine animal comprising:
- a generally cylindrical adapter base for fastening to a dart delivery shaft or striking device, the adapter base having a distal threaded end;
- a dart tip having a sharpened tubular end portion for entering through skin of a marine animal, when the dart tip is driven into the marine animal from a distance via the delivery shaft or striking device, and a chamber portion having an internal transverse cross-sectional diameter larger than an internal transverse cross-sectional diameter of the tubular end portion for collecting and holding a tissue sample, wherein the chamber portion has a proximal portion adapted to be fastened to the distal threaded end of the adapter base and a distal portion merging with the sharpened tubular end portion via a tapered collar portion and one or more openings through a side wall of the chamber portion;
- and
- a plurality of barbs formed in the chamber portion for preventing withdrawal of the tissue sample through the sharpened tubular end portion while the dart tip is withdrawn from the animal.
A dart for use in gathering a biological tissue sample from a marine animal comprising:
- an adapter base for fastening to an elongated dart delivery shaft or striking device, the adapter base having a distal threaded end;
- and
- a dart tip having a sharpened tubular end portion for entering through skin of a marine animal, when the dart tip is driven into the marine animal from a distance via the delivery shaft or striking device, and a cylindrical chamber portion having an internal transverse cross-sectional diameter larger than an internal transverse cross-sectional diameter of the tubular end portion for receiving and holding at least part of a tissue sample, wherein the chamber portion has a proximal portion adapted to be removably fastened to the distal threaded end of the adapter base and a distal portion merging with the sharpened tubular end portion via a tapered collar portion and one or more openings through a side wall of the chamber portion, wherein the dart tip is configured to hold and retain the tissue sample within the chamber portion while the dart tip is withdrawn from the animal.
Dependencies are inferred from the claim text.