Handle assembly for a left atrial appendage occlusion device
First Claim
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1. A handle assembly for a left atrial appendage occlusion device delivery system comprising:
- a first non-rotating catheter displacement component rotatably connected to a second rotatable catheter displacement component, said a first non-rotating catheter displacement component having a distal end adapted to operably connect to a delivery catheter for a left atrial appendage occlusion device,wherein the first non-rotating catheter displacement component and the second rotatable catheter displacement component further comprise a lumen therethrough,further wherein the second rotatable catheter displacement component portion of the lumen comprises an internally threaded segment having an inner diameter;
a first manipulation segment having a externally threaded tubular distal extension adapted to rotationally engage the internally threaded segment of the second rotatable catheter displacement component, said externally threaded tubular distal extension having a first length and a tubular segment having a second length affixed to a proximal end of the externally threaded tubular distal extension and an outer diameter smaller than the inner diameter of the internally threaded segment of the second rotatable catheter displacement component; and
a second manipulation segment reversibly coupled to the first manipulation segment,wherein the second manipulation segment has affixed thereto an elongate shaft adapted to slidably and rotatably pass through a lumen associated with the first manipulation segment, the lumen of the first non-rotating catheter displacement component and second rotatable catheter displacement component, and a connected delivery catheter for a left atrial appendage occlusion device,further wherein rotation of the second rotatable catheter displacement component relative to the first non-rotating catheter displacement component is adapted to displace the delivery catheter proximally relative to the elongate shaft by a distance at least equal to the first length of the externally threaded tubular distal extension of the first manipulation segment,wherein the lumen of the first non-rotating catheter displacement component and second rotatable catheter displacement component is sized and adapted to slidably receive the externally threaded tubular distal extension of the first manipulation segment in a region distal of the internally threaded segment of the second rotatable catheter displacement component.
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Abstract
The disclosure pertains to a handle assembly for a left atrial appendage occlusion device delivery system and methods of use therefor. The handle assembly includes a leadscrew mechanism for smooth, low backlash control of a delivery catheter for the left atrial appendage occlusion device and manipulation segments which allow one hand operation of the handle assembly.
209 Citations
13 Claims
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1. A handle assembly for a left atrial appendage occlusion device delivery system comprising:
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a first non-rotating catheter displacement component rotatably connected to a second rotatable catheter displacement component, said a first non-rotating catheter displacement component having a distal end adapted to operably connect to a delivery catheter for a left atrial appendage occlusion device, wherein the first non-rotating catheter displacement component and the second rotatable catheter displacement component further comprise a lumen therethrough, further wherein the second rotatable catheter displacement component portion of the lumen comprises an internally threaded segment having an inner diameter; a first manipulation segment having a externally threaded tubular distal extension adapted to rotationally engage the internally threaded segment of the second rotatable catheter displacement component, said externally threaded tubular distal extension having a first length and a tubular segment having a second length affixed to a proximal end of the externally threaded tubular distal extension and an outer diameter smaller than the inner diameter of the internally threaded segment of the second rotatable catheter displacement component; and a second manipulation segment reversibly coupled to the first manipulation segment, wherein the second manipulation segment has affixed thereto an elongate shaft adapted to slidably and rotatably pass through a lumen associated with the first manipulation segment, the lumen of the first non-rotating catheter displacement component and second rotatable catheter displacement component, and a connected delivery catheter for a left atrial appendage occlusion device, further wherein rotation of the second rotatable catheter displacement component relative to the first non-rotating catheter displacement component is adapted to displace the delivery catheter proximally relative to the elongate shaft by a distance at least equal to the first length of the externally threaded tubular distal extension of the first manipulation segment, wherein the lumen of the first non-rotating catheter displacement component and second rotatable catheter displacement component is sized and adapted to slidably receive the externally threaded tubular distal extension of the first manipulation segment in a region distal of the internally threaded segment of the second rotatable catheter displacement component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification