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US 8,506,578 B2Granted
Polypectomy snare instrument
AssigneeBoston Scientific Scimed, Inc.
InventorKevin W. Smith
Life of this patent
Estimating the term…
Abstract
A medical device and methods for making and using the same. An example medical device includes a tubular member, a shaft disposed within the tubular member, and an end effector coupled to the shaft. A first handle and a second handle may be coupled to the shaft. A tubular sheath extension may be disposed between the first handle and the second handle.
Claims21
A medical device, comprising:
- a tubular member having a distal end;
- a shaft disposed within the tubular member;
- an end effector coupled to the shaft;
- a first handle coupled to the shaft;
- a second handle coupled to the shaft;
- wherein the second handle further comprises a stationary member and a spool member slidable relative to the stationary member, wherein sliding the spool member results in longitudinal movement of the shaft, and wherein the first handle remains stationary while the spool member is longitudinally moved;
- and
- a tubular sheath extension disposed between and longitudinally separating the first handle from the second handle, wherein the tubular sheath extension includes a first connector attached to the first handle and a second connector attached to the second handle, wherein the tubular sheath extension has a length and wherein the first handle and the second handle are longitudinally spaced from each other by a fixed distance that is substantially equal to the length of the tubular sheath extension.
5 more elements
A medical device, comprising:
- a tubular member having a distal end;
- a shaft disposed within the tubular member;
- an end effector coupled to the shaft;
- means for rotating the shaft;
- means for longitudinally shifting the position of the shaft relative to the sheath;
- wherein the means for longitudinally shifting the position of the shaft relative to the sheath further comprises a stationary member and a spool member slidable relative to the stationary member, wherein sliding the spool member results in longitudinal movement of the shaft, and wherein the means for rotating the shaft remains axially stationary while the spool member is moved;
- and
- a tubular sheath extension disposed between and longitudinally separating the means for rotating the shaft from the means for longitudinally shifting the position of the shaft relative to the sheath, wherein the tubular sheath extension includes a first connector attached to the means for rotating the shaft and a second connector attached to the means for longitudinally shifting the position of the shaft relative to the sheath, wherein the tubular sheath extension has a length and wherein the means for rotating the shaft and the means for longitudinally shifting the position of the shaft relative to the sheath are longitudinally spaced from each other by a fixed distance that is substantially equal to the length of the tubular sheath extension.
5 more elements
A medical device, comprising:
- a sheath having a distal end;
- a shaft slidably disposed within the sheath;
- a snare coupled to the shaft;
- and
- a control member coupled to the shaft for controlling the position of the shaft relative to the sheath, the control member including a first handle, a second handle, and a tubular sheath extension disposed therebetween;
- wherein the first handle is configured to be actuated independently of the second handle such that the second handle maintains its axial position relative to the first handle when the first handle is actuated;
- wherein the tubular sheath extension has a length and wherein the first handle and the second handle are longitudinally spaced from each other by a fixed distance that is substantially equal to the length of the tubular sheath extension;
- and
- wherein the tubular sheath extension includes a first connector attached to the first handle and a second connector attached to the second handle.
6 more elements
Dependencies are inferred from the claim text.