Interventional medical systems, devices, and components thereof
First Claim
1. An implantable medical device comprising a housing, and a pacing electrode and a fixation member mounted in proximity to a distal end of the housing, the fixation member comprising a plurality of fingers spaced apart from one another around a perimeter of the housing, wherein each of the plurality of fingers is elastically deformable between a relaxed condition and an extended condition and comprises:
- a fixed end;
a free end;
one or more peripheral portions; and
one or more cut-out portions, each cut-out portion of the one or more cut-out portions extending from a fixed end of the cut-out portion to a free end of the cut-out portion,wherein each peripheral portion of the one or more peripheral portions frames a respective cut-out portion of the one or more cut-out portions, whereby an inside edge of the peripheral portion is spaced apart from an outside edge of the cut-out portion, and wherein each peripheral portion of the one or more peripheral portions is integral with the respective cut-out portion of the one or more cut-out portions at the fixed end of the respective cut-out portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A fixation member component, for example, employed by a relatively compact implantable medical device, includes a plurality of fingers; each finger includes a first segment extending from a fixed end of the corresponding finger, and a second segment extending from the corresponding first segment to a free end of the corresponding finger. Each first segment is elastically deformable from a relaxed to an extended condition, and from the relaxed to a compressed condition, and includes a peripheral portion and a central cut-out portion, framed by the peripheral portion. In the compressed condition, a free tip of the cut-out portion of some or all of the fingers may lodge against opposing tissue surfaces, via a spring force of the compressed fingers. Each second segment and cut-out portion is preferably configured to prevent penetration thereof within tissue at the implant site.
69 Citations
33 Claims
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1. An implantable medical device comprising a housing, and a pacing electrode and a fixation member mounted in proximity to a distal end of the housing, the fixation member comprising a plurality of fingers spaced apart from one another around a perimeter of the housing, wherein each of the plurality of fingers is elastically deformable between a relaxed condition and an extended condition and comprises:
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a fixed end; a free end; one or more peripheral portions; and one or more cut-out portions, each cut-out portion of the one or more cut-out portions extending from a fixed end of the cut-out portion to a free end of the cut-out portion, wherein each peripheral portion of the one or more peripheral portions frames a respective cut-out portion of the one or more cut-out portions, whereby an inside edge of the peripheral portion is spaced apart from an outside edge of the cut-out portion, and wherein each peripheral portion of the one or more peripheral portions is integral with the respective cut-out portion of the one or more cut-out portions at the fixed end of the respective cut-out portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An interventional medical system comprising:
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an implantable medical device comprising a housing, and a pacing electrode and a fixation member mounted in proximity to a distal end of the housing, the fixation member comprising a plurality of fingers spaced apart from one another around a perimeter of the housing, wherein each of the plurality of fingers is elastically deformable between a relaxed condition and an extended condition and comprises; a fixed end; a free end; one or more peripheral portions; and one or more cut-out portions, each cut-out portion of the one or more cut-out portions extending from a fixed end of the cut-out portion to a free end of the cut-out portion, wherein each peripheral portion of the one or more peripheral portions frames a respective cut-out portion of the one or more cut-out portions, whereby an inside edge of the peripheral portion is spaced apart from an outside edge of the cut-out portion, and wherein each peripheral portion of the one or more peripheral portions is integral with the respective cut-out portion of the one or more cut-out portions at the fixed end of the respective cut-out portion; and a delivery tool comprising a deployment tube, the deployment tube including a distal opening and a distal-most portion terminated by the distal opening, the distal-most portion being sized to contain the device and to hold the plurality of fingers in the extended condition. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification