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US3999555A Expired / Lapsed US ⏱️ 0.0 years remaining

Atrial pinch on lead and insertion tool

Assignee: Medtronic Inc
•
Filing: 1975-10-28
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Granted: 1976-12-28
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Expires: 1995-10-28
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Abstract

Abstract A body implantable lead and insertion tool for attaching the lead to an internal body organ. The lead carries an electrode having first and second spaced organ engaging pincers. The insertion tool comprises jaws for firmly grasping the first and second spaced organ engaging pincers for facilitating the attachment thereof to a fold of the internal organ between the pincers. The pincers may be mechanically deformed to a closed position through opposing sides of the body organ fold by the application of a mechanical deforming force to and through the insertion tool. The tool also has a stop member for limiting the deformation of the first and second spaced organ engaging pincers to a predetermined extent.

Inventors

  • 👤 Gerald C. Person

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 16:40
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0587

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 287 words
In combination: a body-implantable, electrode carrying lead of the type which is adapted for electrical connection to a remote electrical device having a length of flexible insulated electrical conductor, and conductive first and second pincer means connected to one end of said conductor having free ends for engaging a fold of body tissue, said first and second pincer means being mechanically deformable from an open position wherein the free ends are in spaced opposing relation to a closed position wherein the free ends engage the fold of body tissue; insertion tool means for attaching said first and second pincer means to a fold of body tissue comprising a substantially C-shaped member having first and second elongated jaws having opposite facing inner, planar surfaces extending substantially parallel to one another from a portion of said member interconnecting said elongated jaws to the respective free ends thereof, first means formed in the inner surfaces of said first and second elongated jaws proximal to the free ends thereof for securely gripping the first and second pincer means in their open position, and second means formed along said first and second elongated jaws for receiving mechanical force applied perpendicular to said inner surfaces to apply mechanical force through said first means to said first and second pincer means to deform said first and second pincer means to their closed position; and compressive applicator means having two opposed and aligned in parallel working members, each working member of the applicator means having releasably attached thereto said second means of said C-shaped member, and handle means for bringing said parallel working members of said applicator means together for applying mechanical force through said C-shaped member to deform said first and second pincer means.
Claim 2
Dependent Claim 287 words
In combination: a body-implantable, electrode carrying lead of the type which is adapted for electrical connection to a remote electrical device having a length of flexible insulated electrical conductor, and conductive first and second pincer means connected to one end of said conductor having free ends for engaging a fold of body tissue, said first and second pincer means being mechanically deformable from an open position wherein the free ends are in spaced opposing relation to a closed position wherein the free ends engage the fold of body tissue; insertion tool means for attaching said first and second pincer means to a fold of body tissue comprising a substantially C-shaped member having first and second elongated jaws having opposite facing inner, planar surfaces extending substantially parallel to one another from a portion of said member interconnecting said elongated jaws to the respective free ends thereof, first means formed in the inner surfaces of said first and second elongated jaws proximal to the free ends thereof for securely gripping the first and second pincer means in their open position, and second means formed along said first and second elongated jaws for receiving mechanical force applied perpendicular to said inner surfaces to apply mechanical force through said first means to said first and second pincer means to deform said first and second pincer means to their closed position; and compressive applicator means having two opposed and aligned in parallel working members, each working member of the applicator means having releasably attached thereto said second means of said C-shaped member, and handle means for bringing said parallel working members of said applicator means together for applying mechanical force through said C-shaped member to deform said first and second pincer means.
Claim 3
Dependent Claim 21 words
The combination of claim 1 wherein said free ends of said first and second pincer means terminate at a cutting surface.
Claim 4
Dependent Claim 15 words
The combination of claim 1 wherein said first and second pincer means are generally arcuate.
Claim 5
Dependent Claim 80 words
The combination of claim 1 wherein said first and second pincer means comprise a length of wire-like conductor attached at its midpoint to said electrical conductor of said lead and formed arcuately to extend from said midpoint generally away from the longitudinal axis of said lead and to extend along its free ends generally toward the longitudinal axis of said lead, the free ends of said first and second pincer means being in spaced generally opposing relation to each other.
Claim 6
Dependent Claim 37 words
The combination of claim 4 wherein the midpoint of said wire-like conductor and the portions extending generally away from the longitudinal axis of said lead are encased in insulating material generally inert to body fluids and tissues.
Claim 7
Dependent Claim 47 words
The combination of claim 1 wherein said first means comprises grooves having a predetermined length, width and depth proportional to the like dimensions of said first and second pincer means, said grooves formed along the free ends of the inner surfaces of the first and second jaws.
Claim 8
Dependent Claim 40 words
The combination of claim 6 wherein said first and second pincer means are generally arcuate in shape having generally facing free ends and wherein said grooves define arcs conforming to the arcuate shape of the first and second pincer means.
Claim 9
Dependent Claim 58 words
The combination of claim 7 wherein said grooves are spaced apart in said inner surfaces less than the spacing of the outer diameters of the arcs of the first and second pincer means in their open position, so that said first and second pincer means are securely gripped in said grooves when inserted therein in their open position.
Claim 10
Dependent Claim 40 words
The combination of claim 7 wherein said grooves are dimensioned to engage a portion of said first and second pincer means, so that the free ends of said first and second pincer means may engage a fold of body tissue.
Claim 11
Dependent Claim 38 words
The combination of claim 1 wherein said second means comprises a pair of generally cylindrical passages extending through said first and second jaws of said insertion tool means and receiving the working members of said compressive applicator means.
Claim 12
Dependent Claim 51 words
The combination of claim 1 further comprising a stop member projecting from at least one of said inner surfaces a predetermined distance such that it will engage the opposite inner surface upon operation of said second means to limit the degree of deformation imparted to said first and second pincer means.
Claim 13
Dependent Claim 33 words
The combination of claim 1 further comprising narrowing tapered surfaces at the free ends of said C-shaped member adapted to increase visibility of the free ends of said first and second pincer means.

References Cited (Backward Citations)

GB636853A Cited
US3120227A Cited
US3175556A Cited
US3326217A Cited
GB1030556A Cited
FR1575665A Cited
US3800784A Cited
US3867944A Cited
US3916908A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-12-28 1980-06-28 1980-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-12-28 1984-06-28 1984-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-12-28 1988-06-28 1988-12-28 $7700.00 Window Closed / Lapsed

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