Hand unit to release a self-expanding implant
First Claim
1. A medical device comprising:
- an implant;
a catheter including;
an inner shaft configured as a push element;
andan outer shaft configured as a pull element; and
a hand unit comprising;
a pull component coaxially disposed on the outer shaft;
a pull grip coaxially disposed within the outer shaft, wherein a proximal end of the outer shaft is captured between the pull component and the pull grip;
a telescopic tube arrangement comprising an inner tube and an outer tube, wherein a distal end of the inner tube is disposed within a proximal end of the inner shaft;
a series of tangs cut through the outer tube and disposed radially inward to engage the proximal end of the inner tube;
anda push component coaxially disposed on a proximal end of the outer tube comprising a push surface disposed coaxially on the push component, wherein the push component is proximal the pull grip and pull component.
1 Assignment
0 Petitions
Accused Products
Abstract
An elongate hand unit for deploying an elongate implant from the distal end of a delivery catheter. The hand unit has a distal end and a proximal end separated by a hand unit length. The hand unit may include a pull component and a push component. The pull component may include a pull grip sliding on the push component to deploy the implant. The push component may be operatively connected to the push element and include at its proximal end a push surface to receive during deployment of the implant a force that pushes on the push element shaft to resist proximal movement of the implant during deployment. The push component may provide a guide rail that defines a guide path for the pull grip, whereby proximal movement of the pull grip along the guide path deploys the implant.
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Citations
15 Claims
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1. A medical device comprising:
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an implant; a catheter including; an inner shaft configured as a push element; and an outer shaft configured as a pull element; and a hand unit comprising; a pull component coaxially disposed on the outer shaft; a pull grip coaxially disposed within the outer shaft, wherein a proximal end of the outer shaft is captured between the pull component and the pull grip; a telescopic tube arrangement comprising an inner tube and an outer tube, wherein a distal end of the inner tube is disposed within a proximal end of the inner shaft; a series of tangs cut through the outer tube and disposed radially inward to engage the proximal end of the inner tube; and a push component coaxially disposed on a proximal end of the outer tube comprising a push surface disposed coaxially on the push component, wherein the push component is proximal the pull grip and pull component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification