Method and apparatus for deflecting a screw-in lead
First Claim
1. A system for manipulating a lead in conjunction with a deflectable guidewire or stylet, the guidewire or stylet being deflectable by means of a slider attached thereto, the slider being attached to a handle of the system, and the system further comprising:
- an attachment being slidably and rotatably mounted around the deflectable guidewire or stylet, distal to the slider, and comprising means for retaining a proximal end of the lead in which the guidewire or stylet is inserted, such that the attachment and the retained proximal end of the lead can be rotated and slid longitudinally relative to the slider; and
wherein the handle comprises a distally facing recess, and a portion of the attachment that is mounted around the guidewire or stylet extends within the distally facing recess.
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Accused Products
Abstract
A deflectable stylet system optimized for use in conjunction with a lead of the type having a fixation helix that is screwed into body tissue by rotation of the lead'"'"'s connector pin is disclosed. The system includes an attachment that is rotatable and longitudinally slidable with respect to the handle of a deflectable stylet. A lead coupled to the attachment may be moved longitudinally with respect to a stylet to account for slight variances in the lead length. In one embodiment, the attachment couples to the lead via a pushbutton mechanism that can be locked to the lead using one hand. The attachment may be rotated to thereby rotate the lead connector. This allows for retraction and extension of a retractable fixation helix, and for further attachment or detachment of a fixation helix to adjacent tissue. In one embodiment, the attachment may be longitudinally rigidly positioned in predetermined locations with respect to the handle. According to another aspect of the system, a deflection device is coupled to the handle to facilitate deflection of the stylet. In one embodiment, this deflection device may be rotatably and/or slidably activated to accomplish the stylet deflection. The system allows a user to adjust lead length with respect to the stylet length, and to further perform stylet deflection and lead rotation all with one hand.
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Citations
11 Claims
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1. A system for manipulating a lead in conjunction with a deflectable guidewire or stylet, the guidewire or stylet being deflectable by means of a slider attached thereto, the slider being attached to a handle of the system, and the system further comprising:
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an attachment being slidably and rotatably mounted around the deflectable guidewire or stylet, distal to the slider, and comprising means for retaining a proximal end of the lead in which the guidewire or stylet is inserted, such that the attachment and the retained proximal end of the lead can be rotated and slid longitudinally relative to the slider; and wherein the handle comprises a distally facing recess, and a portion of the attachment that is mounted around the guidewire or stylet extends within the distally facing recess. - View Dependent Claims (2, 3, 4, 5)
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6. A system for manipulating a lead in conjunction with a deflectable guidewire or stylet, the guidewire or stylet being deflectable by means of a slider attached thereto, the slider being attached to a handle of the system, and the system further comprising:
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a pin member mounted around the guidewire or stylet distal to the slider; and an attachment being slidably and rotatably mounted around the pin member, distal to the slider, and comprising means for retaining a proximal end of the lead in which the guidewire or stylet is inserted, such that the attachment and the retained proximal end of the lead can be rotated and slid longitudinally relative to the slider. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification