Key locking anchoring device for implanted lead

• US 8,489,208 B2
• Filed: 09/09/2010
• Issued: 07/16/2013
• Est. Priority Date: 09/09/2009
• Status: Active Grant

• Current Assignee: Advanced Neuromodulation Systems Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Advanced Neuromodulation Systems Incorporated (Abbott Laboratories Incorporated)
• Inventors: Cantlon, Kurt
• Primary Examiner(s): Schaetzle, Kennedy
• Application Number:
  US12/878,483
• Publication Number:
  US 20110060395A1
• Time in Patent Office: 1,041 Days
• Field of Search: None
• US Class Current: 607/149
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 5/14276 specially adapted for implantation
• CPC Class Codes: A61N 1/00 Electrotherapy; Circuits therefor A61N2/00 takes precedence; irradiation apparatus A61N5/00
• CPC Class Codes: A61N 1/0509 Stomach and intestinal electrodes
• CPC Class Codes: A61N 1/0558 Anchoring or fixation means therefor
• CPC Class Codes: A61N 2001/0582 Suture sleeves

Abstract

There is disclosed various embodiments of an implantable anchor for anchoring a medical lead within a patient. The implantable anchor includes a body having a cavity for receiving a medical lead, and a separate, removable key for insertion into the cavity. The key, upon insertion into the cavity, engages and locks the medical lead into place and prevents the movement of the medical lead with respect to the anchor.

Claims

1. An implantable anchor for anchoring a medical lead within a user, the anchor comprising:

an elongated base having a first end, a second end, a top, a bottom and a cavity, the cavity having an upper portion and a lower portion with the upper portion extending along a longitudinal axis from the first end to the second end, with each of the first end of the base and the second end of the base having an opening for receiving the medical lead, the base further having an opening extending from the top of the base into the upper portion of the cavity, the cavity for receiving the medical lead;

a key having a first elongated portion for insertion into the cavity of the base through the opening extending from the toy into the upper portion of the cavity, the first portion having a shape to mate with at least a portion of the cavity of the base;

wherein when the medical lead is disposed in the upper portion of the cavity of the base through the first end of the base to the second end of the base and when the first portion of the key is subsequently inserted into the cavity of the base with the elongated portion of the key being in parallel alignment with the longitudinal axis of the base, the key engages at least a portion of the lead forcing a portion of the lead into the lower portion of the cavity of the base creating a tortuous path for the lead through the base and thereby inhibiting the movement of the medical lead with respect to the anchor.

2. The implantable anchor of claim 1, further including a first suture hole extending through the base, the first suture hole to facilitate the suturing of the anchor to the user.

3. The implantable anchor of claim 1, wherein the cavity is configured to receive a second medical lead, the anchor further including a second key, the second key having a first portion for insertion into the cavity of the base, the first portion of the second key having a shape to mate with at least a portion of the cavity of the base, wherein when the second medical lead is disposed in the cavity of the base and the first portion of the second key is subsequently inserted into the cavity of the base, the key engages at least a portion of the second medical lead forcing a portion of the second medical lead into the lower portion of the cavity of the base creating a tortuous path for the second medical lead through the base and thereby inhibiting the movement of the second medical lead with respect to the anchor.

4. An implantable anchor for anchoring a medical lead within a living organism, the anchor comprising:

an elongated base having a cavity, the cavity for receiving the medical lead, the base having a top, a first end, a second end, the cavity having an upper portion and a lower portion with the upper portion extending along a longitudinal axis from the first end to the second end, with each of the first end of the base and the second end of the base having an opening for receiving the medical lead, the base further having an opening extending from the top of the base into the upper portion of the cavity, the base further including a first hole extending perpendicular to the longitudinal axis through the base;

a first key having an elongated portion for insertion into the cavity of the base, the first key having a second hole, the second hole extending through the first key;

wherein when the medical lead is disposed in the upper portion of the cavity of the base and the elongated portion of the first key is subsequently inserted into the cavity of the base in parallel alignment with the longitudinal axis of the base, the first key engages at least a portion of the medical lead and forces a portion of the medical lead into the lower portion of the cavity creating a tortuous path of the lead through the base and thereby inhibits the movement of the medical lead with respect to the anchor, and further wherein upon insertion of the elongated portion of the key into the cavity of the base, the first hole of the base and the second hole of the key align to receive a suture therethrough to secure the anchor to the living organism and to further secure the key within the cavity of the base.

5. The implantable anchor of claim 4, wherein each of the key and the base include a groove, such that when the key is inserted into the cavity of the base, the groove of the key is in alignment with the groove of the base, the groove of the base and the key to receive a suture for securing the key to the base.

6. The implantable anchor of claim 5, wherein the cavity is configured to receive a second medical lead, the anchor further including a second key, the second key having a portion for insertion into the cavity of the base, wherein when the second medical lead is disposed in the cavity of the base and the second key is subsequently inserted into the cavity of the base, the second key engages at least a portion of the second medical lead creating a tortuous path for the second medical lead and thereby inhibits the movement of the second medical lead with respect to the anchor.

7. An implantable anchor for anchoring a medical lead within a living organism, the anchor comprising:

a base having a top, a first end and a second end and further having a cavity, the cavity having an upper portion and a lower portion, the cavity for receiving the medical lead;

a first separate key having a portion for insertion into the cavity of the base;

the base further including an opening at the top for receiving the first key, the base including an opening at each of the first end and the second end, with the openings at the first and second ends configured to facilitate the passing of the medical lead therethrough;

wherein the medical lead passes through the openings at the first and second ends and is disposed in the upper portion of the cavity of the base, when the portion of the first key is subsequently inserted into the cavity of the base, the first key engages at least a portion of the medical lead and forces a portion of the medical lead into the lower portion of the cavity creating a tortuous path of the lead through the base and thereby inhibits the movement of the medical lead with respect to the anchor, and further wherein each of the key and the base include a groove, such that when the key is inserted into the cavity of the base, the groove of the key is in alignment with the groove of the base, the groove of the base and the key to receive a suture for securing the key to the base.

8. The implantable anchor of claim 7, further including a first hole extending through the base, the first hole to facilitate the suturing of the anchor to the user.

9. The implantable anchor of claim 8, further including a second hole extending through the key, such that when the medical lead is disposed in the cavity of the base and the key is inserted into the cavity of the base, the first hole and the second hole align to receive a suture therethrough to secure the anchor to the living organism and to further secure the key within the cavity of the base.

10. The implantable anchor of claim 9, wherein each of the key and the base include a groove, such that when the key is inserted into the cavity of the base, the groove of the key is in alignment with the groove of the base, the groove of the base and the key to receive a suture for securing the key to the base.

11. The implantable anchor of claim 10, wherein the cavity is configured to receive a second medical lead, the anchor further including a second key, the second key having a portion for insertion into the cavity of the base, wherein when the second medical lead is disposed in the cavity of the base and the second key is subsequently inserted into the cavity of the base, the second key engages at least a portion of the second medical lead and inhibits the movement of the second medical lead with respect to the anchor.