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US 11,376,401 B2Granted
Deflectable guide for medical instrument
AssigneeAcclarent, Inc.
InventorsGeorge L. Matlock, Don Q. Ngo-Chu, Tuan Pham, John H. Thinnes, Jr.
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Abstract
An apparatus includes a bod, an actuation assembly, and a guide catheter extending distally from the body. The guide catheter includes an open proximal end, an open distal end, a rigid proximal portion, a bendable distal portion, and a pull wire extending from the bendable distal portion to the rigid proximal portion. A proximal end of the pull wire is coupled with the actuation assembly. The actuation assembly is operable to translate the pull wire relative to the rigid proximal portion to thereby articulate the bendable distal portion.
Claims20
An apparatus comprising:
- (a) a body;
- (b) an actuation assembly;
- and
- (c) a guide catheter extending distally from the body, wherein the guide catheter comprises:
- (i) an open proximal end,
- (ii) an open distal end,
- (iii) a rigid proximal portion defining a longitudinal axis, wherein the rigid proximal portion includes a slot,
- (iv) a bendable distal portion including a plurality of ribs separated by gaps, wherein a distalmost rib of the plurality of ribs forms a surface of the open distal end,
- (v) a translatable sleeve slidably coupled with the rigid proximal portion, wherein the translatable sleeve includes a key configured to translate longitudinally within the slot, wherein the key is configured to restrict rotation of the translatable sleeve about the longitudinal axis, and
- (vi) a pull wire extending from the bendable distal portion to the rigid proximal portion, wherein the pull wire is secured to an exterior surface of the distalmost rib, wherein a proximal end of the pull wire is coupled with the actuation assembly, wherein the actuation assembly is operable to translate the pull wire relative to the rigid proximal portion to thereby articulate the bendable distal portion,
- wherein each rib of the plurality of ribs comprises a protrusion and a pocket, wherein the pocket of each rib is configured to receive the protrusion of an adjacent rib of the plurality of ribs, wherein the pocket of each rib and the protrusion of each rib have a same linear profile, wherein the pocket of at least one rib of the plurality of ribs is configured to release the protrusion of the adjacent rib of the plurality of ribs when the bendable distal portion is in a straight configuration.
8 more elements
An apparatus comprising:
- (a) a body;
- (b) a guide catheter extending distally from the body, wherein the guide catheter comprises:
- (i) a rigid proximal portion defining a longitudinal axis, wherein the rigid proximal portion includes a slot,
- (ii) a bendable distal portion,
- (iii) a translatable sleeve slidably coupled with the rigid proximal portion, wherein the translatable sleeve includes a key configured to translate longitudinally within the slot, wherein the key is configured to restrict rotation of the translatable sleeve about the longitudinal axis;
- (iv) a translatable member extending from the bendable distal portion to the translatable sleeve;
- (c) a dilation catheter slidably coupled with the guide catheter, wherein the dilation catheter includes an expandable dilator;
- and
- (d) an actuation assembly operatively coupled with the translatable member, wherein the actuation assembly is operable to translate the translatable member to thereby deflect at least part of the bendable distal portion away from the longitudinal axis of the rigid proximal portion.
6 more elements
An apparatus comprising:
- (a) a first body defining a longitudinal axis, wherein the first body includes a rail member;
- (b) a second body including a dilation instrument, the dilation instrument including a balloon, wherein the second body is configured to slidably couple with the rail member and translate longitudinally relative to the first body;
- (c) a guide catheter extending distally from the first body, wherein the guide catheter defines a lumen, wherein the guide catheter comprises:
- (i) a rigid proximal portion defining a longitudinal axis, wherein the rigid proximal portion includes a slot,
- (ii) a bendable distal portion,
- (iii) a translatable sleeve slidably coupled with the rigid proximal portion, wherein the translatable sleeve includes a key configured to translate longitudinally within the slot, wherein the key is configured to restrict rotation of the translatable sleeve about the longitudinal axis of the rigid proximal portion, and
- (iv) a translatable member extending from the bendable distal portion to the translatable sleeve;
- and
- (d) an actuation assembly coupled with the translatable member, wherein the actuation assembly is operable to translate the translatable member to thereby deflect at least part of the bendable distal portion away from the longitudinal axis of the rigid proximal portion,
- wherein the dilation instrument is slidably disposed within the lumen of the guide catheter.
7 more elements
Dependencies are inferred from the claim text.