Extendible flexible sheath
AssigneeBoston Scientific Scimed, Inc.
InventorsPaul Smith, Barry Weitzner, Robert B. DeVries
Life of this patent
Estimating the term…
Abstract
A sheath for a medical instrument includes an elongate body extending from a proximal end to a distal face. The elongate body may be configured to axially extend from a first length to a second length greater than the first length. The sheath may include a first hollow lumen extending from a first end proximate the proximal end to a second end proximate the distal face, and a second hollow lumen extending from the proximal end to the distal face. The second lumen may be open at the distal face. The sheath may also include a transparent window positioned at the second end of the first lumen to seal the first lumen at the second end. The transparent window may be configured to transmit light therethrough.
Claims13
A sheath for a medical instrument, comprising:
- a member extending from a proximal end to a distalmost end and including a distally-facing face proximal to the distalmost end, wherein the sheath includes a neck region extending distally past the distally-facing face at a fixed location on the distally-facing face where the neck region is fixed to the distally-facing face;
- a first hollow lumen extending from the proximal end to the distalmost end;
- a second hollow lumen extending from the proximal end to the distally-facing face, the second lumen being open at the distally-facing face;
- and
- a transparent window positioned at the distalmost end to seal the first lumen at the distalmost end, the transparent window being configured to transmit light therethrough;
- wherein the member includes a first extendible section configured to axially extend and contract between a first length and a second length, greater than the first length, by moving the distalmost end and the distally-facing face in a distal direction;
- and
- wherein the neck region includes a second extendible section configured to axially extend and contract between a third length and a fourth length, greater than the third length.
A sheath for a medical instrument, comprising:
- a member extending from a proximal end to a sealed distalmost end and including a distally-facing face proximal to the distalmost end;
- a first hollow lumen extending from the proximal end to the distalmost end;
- and
- a second hollow lumen extending from the proximal end to the distally-facing face, the second lumen being open at the distally-facing face;
- wherein the member includes at least two extendible portions separated by a non-extendible portion, each of the extendible portions having a variable axial length, wherein one of the extendible portions is located distal to the distally-facing face, and wherein extending one of the at least two extendible portions moves the distally-facing face in a distal direction to axially extend and contract the member between a first length and a second length, greater than the first length.
Dependencies are inferred from the claim text.