IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0954780
(2007-12-12)
|
등록번호 |
US-8140173
(2012-03-20)
|
발명자
/ 주소 |
- Schorn, Greg M.
- Sullivan, Scott
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출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
▼
An anchor system for securing a lead to a patient's skull is disclosed. The lead is of the type that passes through a burr hole created in the patient's skull and includes a distal end which is implanted within the patient's brain at a target site. The anchor, according to a first embodiment of the
An anchor system for securing a lead to a patient's skull is disclosed. The lead is of the type that passes through a burr hole created in the patient's skull and includes a distal end which is implanted within the patient's brain at a target site. The anchor, according to a first embodiment of the invention includes a stem, an integrally formed rim plate, and a peripheral clamping structure. The clamping structure is adapted to receive and snugly hold a portion of the lead. The stem is sized and shaped to fit within the burr hole, leaving the rim plate positioned flush with the patient's skull. A flared passage is provided within the stem and rim plate so that the lead may pass through the stem and into the rim plate, at which point the lead follows the contours of the flared passage and communicates with the peripheral clamping structural. The clamping structure holds a portion of the lead so that any tension of the lead will not be transmitted past the anchor and the distal end of the lead will not become displaced from the target site. According to a second embodiment, the peripheral clamping structure includes several flexible loops that are sized and spaced from each other to allow a lead to be laced through the loops as the lead extends about the periphery of the rim plate.
대표청구항
▼
1. An anchor system for securing a lead to a patient's skull, said lead being of the type that passes through a burr hole of said skull and that includes a distal end which is implanted within the patient's brain at a target site, the anchor system comprising: a cylindrical insert that is sized to f
1. An anchor system for securing a lead to a patient's skull, said lead being of the type that passes through a burr hole of said skull and that includes a distal end which is implanted within the patient's brain at a target site, the anchor system comprising: a cylindrical insert that is sized to fit snugly into said burr hole, said insert defining a lower end and an upper end, said insert including a passage that communicates said lower end with said upper end;a flange located about said insert at said upper end, said flange having an outer diameter that is larger than the inside diameter of said burr hole and defining a periphery;at least one clamp located along said periphery of said flange, said clamp being sized and shaped to snugly receive and clamp onto said lead;wherein said passage is flared from a first diameter at said lower end of said insert to a larger diameter at said upper end, said flared passage being adapted to receive said lead from said brain and further configured to allow said lead to atruamatically transition from a perpendicular path from said burr hole to a path that is generally tangential with respect to said flange, said clamp configured to receive and clamp onto said lead so that said lead is effectively anchored with respect to said patient's skull; andwherein said clamp includes a starting lead-receiving tube, a middle lead-receiving tube and an ending lead-receiving tube, said middle lead-receiving tube including a slit along its length so that a lead may be inserted into said middle tube through said slit, said middle tube being sized to snugly frictionally contact said lead when said lead is inserted into said middle tube. 2. The anchor system of claim 1 further including a transition loop located along said flange, said transition loop being sized and shaped to receive said lead between said flared passage and said clamp. 3. The anchor system of claim 2, wherein said transition loop is formed integrally with said flange. 4. The anchor system claim 1 wherein said insert is formed integrally with said flange. 5. The anchor system of claim 1, wherein said insert is made from a flexible biocompatible material. 6. The anchor system of claim 5, wherein said insert can be cut to length as desired. 7. The anchor system of claim 1, wherein said flared passage includes a cusp-shaped inner surface. 8. The anchor system of claim 1, wherein said flange includes at least one bore which is sized and shaped to receive a fastener that is appropriate for securement to a patient's skull. 9. The anchor system of claim 1, wherein said flange, said insert and said clamp are integrally formed from a semi-rigid biocompatible material. 10. The anchor system of claim 1, wherein said flange includes a lower surface, and further comprising a seal located on said lower surface, said seal being sized and shaped to contact the surface of the patient's skull when said anchor is secured to said skull. 11. The anchor system of claim 1, further comprising a mechanical fastener that is configured to selectively engage said patient's skull, and wherein said flange includes at least one opening that is sized and shaped to receive said mechanical fastener so that selective engagement of said mechanical fastener to said patient's skull effectively secures said anchor to said patient's skull. 12. The anchor system of claim 1, further comprising a layer of adhesive that is configured to bond to the patient's skull and the anchor material, said adhesive layer being positioned at selective locations on said patient's skull so that upon insertion of said anchor against said skull, said adhesive layer contacts a portion of said anchor and a portion of said skull, thereby securing said anchor to said skull. 13. The anchor system of claim 1, wherein said middle tube extends between 90 and 270 arc degrees around said periphery of said flange. 14. The anchor system of claim 13, wherein said middle tube extends about 180 arc degrees around said periphery of said flange. 15. The anchor system of claim 1, further comprising an anchor bridge disposed along an upper surface of said flange. 16. The anchor system of claim 1, further comprising an anchor bridge disposed along an upper surface of said flange.
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