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.
Claims21
1-20. (canceled)
A sheath, comprising:
- a member extending from a proximal end to a distal end;
- a distally facing face located at the distal end of the member;
- a neck region extending distally beyond the distal end from the distally facing face;
- a first lumen extending from the proximal end of the member, beyond the distal end of the member, and within the neck region;
- and
- a second lumen extending from the proximal end of the member to the distally facing face;
- 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, to position the neck region and the distally facing face;
- 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, comprising:
- a member extending from a proximal end to a distal end, wherein the member includes a distally facing face located proximal to the distal end;
- a first lumen extending from the proximal end to the distal end;
- a second lumen extending from the proximal end to the distally facing face;
- and
- at least two extendible portions of the member separated from each other by a non-extendible portion of the member, wherein each of the extendible portions has a variable axial length, wherein a first extendible portion of the at least two extendible portions is located distal to the distally facing face, and wherein extending a second extendible portion of the at least two extendible portions axially positions the distally facing face further from the proximal end of the member, and axially extends and contracts the member between a first length and a second length, greater than the first length.
A sheath, comprising:
- a member extending from a proximal end to a distal end, wherein the member includes a distally facing face located proximal to the distal end;
- a first lumen extending from the proximal end to the distal end;
- a second lumen extending from the proximal end to the distally facing face, wherein the second lumen is open at the distally facing face;
- a third lumen extending from the proximal end to the distally facing face, wherein the third lumen is open at the distally facing face, wherein the second lumen and the third lumen diverge from one another at a distal region located proximal to the distally facing face;
- and
- at least two extendible portions, wherein each of the extendible portions has a variable axial length, wherein a first extendible portion of the at least two extendible portions is located distal to the distally facing face, and wherein the first lumen extends through the first of the at least two extendible portions.
Dependencies are inferred from the claim text.