Interventional medical systems, associated assemblies and methods
First Claim
1. An interventional medical system comprising:
- an implantable medical device comprising a hermetically sealed housing, an electrode coupled in proximity to a distal end of the housing, a fixation member coupled to the distal end of the housing, and a holding member coupled to a proximal end of the housing, the holding member defining a cavity that has a proximal-facing opening; and
a catheter comprising an elongate inner assembly and an elongate outer tubular member, the outer tubular member including an elongate lumen extending along a length thereof and including a distal-most opening formed at a distal end of the outer tubular member, the distal-most opening allowing passage of the medical device therethrough, and the inner assembly extending along, and being in sliding engagement within the lumen of the outer tubular member; and
the catheter inner assembly comprising;
a tethering member including an elongate shaft portion and a connector portion coupled to a distal end of the shaft portion, the connector portion being configured to pass through the proximal-facing opening of the device holding member cavity and to interlock with the holding member within the cavity, and the connector portion having a lumen extending longitudinally therethrough from a proximal opening to a distal opening that is configured to be in fluid communication with the cavity of the device holding member when the connector portion interlocks therewith; and
an elongate mandrel that is in sliding engagement with the lumen of the outer tubular member and the lumen of the tethering member connector portion,wherein the connector portion is configured to disengage from the holding member as a result of the elongate mandrel extending distally through the proximal-facing opening from the distal opening of the connector portion while applying a pull force through the elongate shaft portion of the tethering member.
1 Assignment
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Accused Products
Abstract
In an interventional medical system, a tethering member of a catheter assembly and a holding member of a relatively compact implantable medical device are configured to interlock with one another. The tethering member includes an elongate shaft portion and a connector portion coupled to a distal end of the shaft portion, wherein the connector portion is configured to pass through a proximal-facing opening of a cavity defined by the device holding member, and to interlock with the holding member within the cavity. The connector portion of the tethering member includes a lumen extending longitudinally therethrough, which has a distal opening in fluid communication with the cavity of the device holding member, when the connector portion interlocks therewith. The catheter assembly further includes an elongate mandrel, which has a distal tip configured to extend within the lumen of the tethering member connector portion, being in sliding engagement therewith.
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Citations
8 Claims
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1. An interventional medical system comprising:
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an implantable medical device comprising a hermetically sealed housing, an electrode coupled in proximity to a distal end of the housing, a fixation member coupled to the distal end of the housing, and a holding member coupled to a proximal end of the housing, the holding member defining a cavity that has a proximal-facing opening; and a catheter comprising an elongate inner assembly and an elongate outer tubular member, the outer tubular member including an elongate lumen extending along a length thereof and including a distal-most opening formed at a distal end of the outer tubular member, the distal-most opening allowing passage of the medical device therethrough, and the inner assembly extending along, and being in sliding engagement within the lumen of the outer tubular member; and
the catheter inner assembly comprising;a tethering member including an elongate shaft portion and a connector portion coupled to a distal end of the shaft portion, the connector portion being configured to pass through the proximal-facing opening of the device holding member cavity and to interlock with the holding member within the cavity, and the connector portion having a lumen extending longitudinally therethrough from a proximal opening to a distal opening that is configured to be in fluid communication with the cavity of the device holding member when the connector portion interlocks therewith; and an elongate mandrel that is in sliding engagement with the lumen of the outer tubular member and the lumen of the tethering member connector portion, wherein the connector portion is configured to disengage from the holding member as a result of the elongate mandrel extending distally through the proximal-facing opening from the distal opening of the connector portion while applying a pull force through the elongate shaft portion of the tethering member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification