Sheaths for needle delivery
AssigneeGyrus ACMI, Inc. d.b.a. Olympus Surgical Technologies America
InventorsJean-Martin Baillargeon, Christopher Ralph
Life of this patent
Estimating the term…
Abstract
A needle apparatus having a sheath with a protective hypotube insert and a method of making the needle sheath. An example needle apparatus includes a handle, a needle having a proximal end connected to the handle and a sheath. The sheath is configured to receive of the needle. The sheath includes a proximal end connected to the handle, a distal end, a lumen and the protective insert. The lumen passes from the proximal end to the distal end of the sheath. The protective insert is received within the lumen at the distal end of the sheath when force and/or heat are applied.
Claims20
A needle apparatus comprising:
- a handle;
- a needle having a proximal end connected to the handle and a distal end, the needle including a heat shrink layer extending along at least a portion of a length of the needle, the heat shrink layer configured to maintain a vacuum within a needle lumen of the needle;
- and
- a sheath including:
- a distal end portion having a first outer diameter;
- a proximal end connected to the handle, the proximal end having a second outer diameter less than the first outer diameter;
- a sheath lumen passing from the proximal end to a distal end of the sheath and configured to receive the needle;
- and
- a tube received within the sheath lumen at the distal end portion, the tube having a longitudinal length equal to a length of the distal end portion.
A needle apparatus comprising:
- a handle;
- a needle having a proximal end connected to the handle;
- a stylet received within a needle lumen of the needle;
- and
- a sheath including:
- a distal end portion having a first outer diameter;
- a proximal end connected to the handle, the proximal end having a second outer diameter less than the first outer diameter;
- a sheath lumen passing from the proximal end to a distal end of the sheath;
- and
- a tube received within the sheath lumen at the distal end portion, the tube having a longitudinal length equal to a length of the distal end portion,
- wherein a proximal end of the tube is collocated with a proximal end of the distal end portion and a distal end of the tube is collocated with a distal end of the distal end portion.
A system comprising:
- a catheter defining a catheter lumen;
- and
- a needle apparatus received within the catheter lumen, the needle apparatus comprising:
- a handle;
- a needle having a proximal end connected to the handle;
- and
- a sheath comprising a proximal end connected to the handle, a distal end, a sheath lumen extending from the proximal end to the distal end of the sheath, and a tube received within the sheath lumen at a distal end portion of the sheath,
- wherein the distal end portion of the sheath has a first outer diameter and a portion of the sheath proximal of the distal end portion has a second outer diameter less than the first outer diameter, and
- wherein the tube has a longitudinal length equal to a length of the distal end portion.
Dependencies are inferred from the claim text.