Active drives for robotic catheter manipulators
First Claim
1. A medical system, comprising:
- a telescoping catheter assembly, which comprises;
an outer catheter comprising an outer elongate body and an outer catheter steering adapter coupled to a proximal end of the outer elongate body; and
an inner catheter comprising an inner elongate body and an inner catheter steering adapter coupled to a proximal end of the inner elongate body, wherein the inner elongate body is coaxially positioned within the outer elongate body;
an outer catheter interface to which the outer catheter steering adapter is removably mated;
an inner catheter interface to which the inner catheter steering adapter is removably mated, wherein the inner catheter interface is actuatable by a first motor to axially translate the inner catheter; and
a first active feeder affixed between the outer catheter interface and the inner catheter interface and configured to receive the inner elongate body, the first active feeder comprising a first pair of opposing grippers configured to actively translate the inner elongate body into the outer elongate body in coordination with axial translation of the inner catheter interface, to thereby prevent axial buckling of the inner elongate body as the inner catheter interface moves toward the outer catheter interface.
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0 Petitions
Accused Products
Abstract
An instrument driver comprises opposing rotatable gripping pads. Each of the gripping pads includes an outer circular rim and a center hub. The pads are configured for applying a gripping force to an elongated member. The instrument driver further comprises shafts affixed to the center hubs, and a driver assembly configured for rotating at least one of the shafts, thereby causing the pads to rotate in opposite directions to linearly translate the gripped member. Each of the pads further includes a framework for partially collapsing in response to the gripping force, such that portions of the rims flatten to contact each other. Each rim has a concave gripping surface in order to facilitate vertical centering of the member between the pads. Each of the pads further includes a pair of upper and lower sprockets for interlacing with each other to prevent the elongated member from slipping out between the pads.
582 Citations
20 Claims
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1. A medical system, comprising:
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a telescoping catheter assembly, which comprises; an outer catheter comprising an outer elongate body and an outer catheter steering adapter coupled to a proximal end of the outer elongate body; and an inner catheter comprising an inner elongate body and an inner catheter steering adapter coupled to a proximal end of the inner elongate body, wherein the inner elongate body is coaxially positioned within the outer elongate body; an outer catheter interface to which the outer catheter steering adapter is removably mated; an inner catheter interface to which the inner catheter steering adapter is removably mated, wherein the inner catheter interface is actuatable by a first motor to axially translate the inner catheter; and a first active feeder affixed between the outer catheter interface and the inner catheter interface and configured to receive the inner elongate body, the first active feeder comprising a first pair of opposing grippers configured to actively translate the inner elongate body into the outer elongate body in coordination with axial translation of the inner catheter interface, to thereby prevent axial buckling of the inner elongate body as the inner catheter interface moves toward the outer catheter interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification