Shaft actuating handle
AssigneeAuris Health, Inc.
InventorsCasey Teal Landey, Ryan Jeffrey Connolly, Brett Andrew Snyder
Life of this patent
Estimating the term…
Abstract
Certain aspects relate to a handle mechanism that permits control of linear motion of a shaft secured within the handle via two different interfaces for actuating the linear motion. In some aspects, a rotational interface can allow for fine control linear positioning of the shaft, for example by allowing a user to rotate the rotational interface to extend or retract the shaft. In some aspects, a plunging interface can enable a faster linear motion, for example by implementing a biasing mechanism that releases to drive rapid linear motion.
Claims20
A handle configured to drive movement of a bronchoscopy instrument, the handle extending along a longitudinal axis between a proximal end and a distal end of the handle and comprising:
- a casing having an inner surface defining an internal volume including a biasing element housing portion;
- a proximal handle member positioned at least partly within a proximal portion of the internal volume of the casing and including a first helical cam interface, the proximal handle member configured to couple to a proximal end of an elongate channel extending beyond the distal end of the handle with a distal end of the elongate channel coupled to the bronchoscopy instrument;
- an actuation sleeve positioned at least partly within a distal portion of the internal volume of the casing and including:
- a proximal portion having a second helical cam interface engaging the first helical cam interface,
- a rotation grip extending distally from the proximal portion of the actuation sleeve, and
- a plunger grip formed by a distal surface of the actuation sleeve, wherein the plunger grip is positioned such that a pressure applied to the plunger grip of the actuation sleeve toward the proximal portion drives, via the engaging of the first helical cam and the second helical cam, a linear motion of the actuation sleeve and the proximal handle member and drives compression of a biasing element;
- and
- the biasing element having a first end secured within the biasing element housing portion of the casing and a second end engaging the proximal portion of the actuation sleeve.
A handle configured to drive movement of an instrument, the handle extending along a longitudinal axis between a proximal end and a distal end of the handle and comprising:
- a casing having an inner surface defining an internal volume;
- a proximal handle member configured to couple to a channel extending beyond the distal end of the handle to the instrument, the proximal handle member including a first helical cam interface;
- and
- an actuation sleeve including:
- a proximal portion having a second helical cam interface engaging the first helical cam interface of the proximal handle member;
- a rotational motion transmitting interface coupling the proximal handle member to the actuation sleeve and configured to translate rotational motion of the actuation sleeve into linear motion of the proximal handle member along the longitudinal axis of the handle;
- and
- a plunging mechanism configured to drive distal movement of the proximal handle member along the longitudinal axis via the rotational motion transmitting interface, the plunging mechanism comprising a biasing element positioned to compress and expand along the longitudinal axis during movement of the actuation sleeve.
An apparatus configured to drive movement of an instrument, the apparatus extending along a longitudinal axis between a proximal end and a distal end of the apparatus and comprising:
- a casing having an inner surface defining an internal volume;
- a proximal handle member positioned at least partly within a proximal portion of the internal volume of the casing and including a first helical cam interface;
- an actuation sleeve configured to impart rotational and linear motion of the actuation sleeve along the longitudinal axis to linear motion of the instrument, the actuation sleeve including:
- a proximal portion with a second helical cam configured to engage with the first helical cam of the proximal handle member;
- and
- a grip having a rotational interface and a plunging interface, the grip extending beyond a distal end of the casing;
- and
- a biasing element within the internal volume, the biasing element positioned to compress and expand along the longitudinal axis during movement of the actuation sleeve wherein expansion of the biasing element drives linear movement of the actuation sleeve in a proximal direction along the longitudinal axis.
Dependencies are inferred from the claim text.