Lead anchoring bobbin

• US 4,266,552 A
• Filed: 11/13/1979
• Issued: 05/12/1981
• Est. Priority Date: 11/13/1979
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Dutcher, Robert G., O'Neill, Edward G.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US06/093,342
• Time in Patent Office: 546 Days
• Field of Search: 128/419 P
• US Class Current: 607/113
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings

Abstract

The lead anchoring bobbin for containing a transvenous pacing lead at an entry site in human tissue and including a grooved bobbin and buttons which frictionally engage and detain the lead on either side of the bobbin. The lead anchoring bobbin is made of medical silicone rubber or like material.

Claims

1. Lead anchoring bobbin for use with an implantable lead having proximal and distal ends for attaching to human tissue comprising:

a. anchoring means having two diametrically opposed partial circumferential discs and a partial truncated disc of a smaller diameter than said two discs, said smaller partial circumferential disc positioned and secured between said two partial circumferential discs, whereby said implantable lead is anchored within a groove formed between said two partial circumferential discs;

b. at least one retaining means adjacent to said anchoring means for frictionally retaining said implantable lead adjacent to said anchoring means having at least one wing extending outwardly from one of said two partial circumferential discs, said wing including a button having a hole and a slit to said hole whereby said hole retains said lead within said button; and

c. at least one suturing means for suturing said anchoring means retaining said loop to said human tissue whereby said anchoring means provides for anchoring of said implantable lead to tissue.

2. Lead anchoring bobbin of claim 1 wherein said at least one wing further comprises:

a left wing and a right wing extending outwardly from one of said two partial circumferential discs, including said hole and said slit to said hole on each of said wings whereby each of said hole and slit form tabs on each side of said button thereby providing strain relief for a lead.

3. Lead anchoring bobbin of claim 2 wherein said slits, holes and buttons are in line.

4. Lead anchoring bobbin of claim 3 comprising a longitudinal member extending outwardly from one of said two partial circumferential discs thereby connecting said retaining buttons.

5. Lead anchoring bobbin for use with an implantable lead having proximal and distal ends and for suturing to human tissue comprising:

a. anchoring means having a substantially circular circumference for fixedly attaching a loop of said implantable lead by frictionally engaging said loop of said implantable lead intermediate said proximal and distal ends;

b. at least one retaining means adjacent to said anchoring means for frictionally retaining said implantable lead adjacent to said anchoring means; and

c. at least one suturing means having at least one suturing hole extending through all of said discs whereby suture attaches said lead anchoring bobbin to human tissue and said lead to said lead anchoring bobbin.

6. In combination, lead anchoring bobbin and transvenous pacing lead for use in human tissue comprising lead anchoring bobbin including a bobbin having a circumferential groove in said bobbin and a flat truncated portion running across the top of said bobbin, outwardly extending wings at an oblique angle from each other extending from one side of said bobbin and substantially parallel with said top truncated portion of said bobbin, each of said wings including a retaining hole running therethrough, substantially parallel and in line with said truncated portion and a slit through each of said wing to each of said hole, and suture holes within the circumference of said groove of said bobbin and a transvenous pacing lead of longitudinal length whereby said transvenous pacing lead is inserted through said slit into said hole of said wing, wound around said groove in said bobbin, overlapping said lead at said truncated portion and inserted through said slit into said hole of said other wing thereby providing for a tight loop on said bobbin, visible entry site in a vein, and strain relief of said transvenous pacing lead at site of entry into said vein and providing for anchoring of said transvenous pacing lead wound on said lead anchoring bobbin to human tissue, and suturing said lead anchoring bobbin with sutures to said human tissue.