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US 7,512,446 B2Granted
Lead fixation tool
AssigneeMedtronic, Inc.
InventorJordon D. Honeck
Life of this patent
Estimating the term…
Abstract
A lead fixation tool includes a tapered opening for receiving and guiding a stylet into a lead. The fixation tool also includes an engagement mechanism for gripping a portion of the lead connector so that rotation of the tool causes rotation of an active fixation tip, such as a helical tip, coupled with the lead.
Claims26
A lead fixation tool comprising:
- a proximal portion having a tapered passage there through, with the tapered passage narrowing in a direction towards a distal portion;
- and
- a distal portion having a channel in substantially axial alignment with the passage along a longitudinal axis, wherein the proximal portion and the distal portion are rotatably coupled so that relative rotation is permitted between the proximal portion and the distal portion;
- and
- an expandable lead pin engagement mechanism disposed within the channel, wherein the engagement mechanism is a C-shaped interference clamp that is axially aligned with the passage and to grip a lead connector assembly and remain at a fixed location on said longitudinal axis during said relative rotation of said proximal and distal portions;
- and
- a rotation indicator for indicating relative rotation between the proximal and distal portions the rotation indicator includes:
- a resilient arm having an actuator;
- and
- a detent, wherein rotation of the distal portion relative to the proximal portion causes the actuator to engage the detent and provide a signal.
7 more elements
A lead fixation tool comprising:
- a proximal portion having a guide passage disposed there through, wherein the guide passage includes a tapered portion having an opening and a lumen interface, with the tapered portion narrowing in a direction from the opening to the lumen interface;
- and
- a distal portion having a connector channel that is axially aligned with the guide passage along a longitudinal axis, wherein the proximal portion and the distal portion are rotatably coupled so that relative rotation is permitted between the proximal portion and the distal portion;
- an expandable engagement collar disposed within the connector channel that is configured for gripping and axially aligned with the guide passage, wherein the engagement collar is a C-shaped interference clamp that is axially aligned with the passage to grip a lead connector assembly and remain at a fixed location on said longitudinal axis during said relative rotation of said proximal and distal end portions;
- and
- a rotation indicator for indicating relative rotation between the proximal and distal portions wherein the rotation indicator includes:
- a resilient arm having an actuator;
- and
- a detent, wherein rotation of the distal portion relative to the proximal portion causes the actuator to engage the detent and provide a signal.
6 more elements
The fixation tool of clam 7, wherein the proximal portion is rotatably coupled with the distal portion.
A lead fixation tool comprising:
- a housing having a generally circular cross section, the housing including a proximal portion and a distal portion, wherein the proximal portion and the distal portion are axially aligned, wherein the proximal portion and the distal portion are rotatably coupled;
- a guide passage for receiving stylet and extending between an opening in the proximal portion to a lumen interface, wherein the guide passage tapers from a larger diameter at the opening to a narrower diameter distal from the opening;
- a lead receiving channel disposed within the distal end for receiving at least a portion of a connector assembly of a lead, the lead receiving channel having a longitudinal axis;
- an expandable connector pin channel disposed within the lead receiving channel for receiving a connector pin of the connector assembly and axially aligning the connector pin with the lumen interface;
- and
- an engagement collar defining the connector pin channel and configured to grip the connector pin, wherein the engagement collar is a C-shaped interference clamp that is axially aligned with the lead receiving channel to grip a lead connector assembly and remain at a fixed location on said longitudinal axis during said relative rotation of said proximal and distal portions with the proximal;
- and
- a rotation indicator for indicating relative rotation between the proximal and distal portions while the lead connector assembly is engaged by the C-shaped interference clamp wherein the rotation indicator includes:
- a resilient arm having an actuator:
- and
- a detent, wherein rotation of the distal portion relative to the proximal portion causes the actuator to engage the detent and provide a signal.
8 more elements
Dependencies are inferred from the claim text.