IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
UP-0454145
(2003-06-04)
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등록번호 |
US-7787934
(2010-09-20)
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발명자
/ 주소 |
- Mazzocchi, Rudy A.
- Solar, Matthew S.
- Lee, David M.
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출원인 / 주소 |
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대리인 / 주소 |
Harness, Dickey & Pierce, PLC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
122 |
초록
▼
This document discusses, among other things, a fiducial marker assembly that includes an internally engagable base. The base is sized and shaped to be mounted flush to or recessed from an outer surface of a patient's skull, thereby reducing or avoiding patient discomfort. The fiducial marker assembl
This document discusses, among other things, a fiducial marker assembly that includes an internally engagable base. The base is sized and shaped to be mounted flush to or recessed from an outer surface of a patient's skull, thereby reducing or avoiding patient discomfort. The fiducial marker assembly includes an imagable locator and a registration receptacle. A base insertion instrument is engaged to the base to attach the base to the patient's skull. In one example the base includes a faceted head, permitting a socket-like device to screw or unscrew the base into or out of the skull. In another example, the base includes at least one step or slot for engaging an insertion or extraction tool.
대표청구항
▼
What is claimed is: 1. A kit comprising: an anchoring base, sized and shaped to be implanted within a patient's skull such that a top surface of a top portion of the base is flush to or recessed from an outer surface of the patient's skull, the base including: an externally threaded outer portion;
What is claimed is: 1. A kit comprising: an anchoring base, sized and shaped to be implanted within a patient's skull such that a top surface of a top portion of the base is flush to or recessed from an outer surface of the patient's skull, the base including: an externally threaded outer portion; a distal tip; a tool engaging portion including the top surface of the base, the tool engaging portion having a rotatably engagable peripheral surface extending from the top surface of the base toward the distal tip; an engagable mounting receptacle in the top portion of the base; a plug sized and shaped to be received in the mounting receptacle and a plug removal tool, wherein the plug is formed of a compliant material to allow the plug to be press-fit into the mounting receptacle and be pierced by the removal tool to be removed with the plug removal tool; and an anchoring base insertion tool having an engaging portion to engage the tool engaging portion and the engageable mounting receptacle and a shaft coupled to and extending from the engaging portion; wherein the engaging portion of the anchoring base insertion tool has a deformable distal portion sized and shaped to fit in the engagable mounting receptacle and to be deformed by engagement with the engagable mounting receptacle so that the deformable portion snugly fits within the engagable mounting receptacle and operable to hold the anchoring base insertion tool to the anchoring base when the deformable distal portion is fitted against the engagable mounting receptacle; wherein engaging portion of the anchoring base insertion tool further has a drive portion operable to engage the tool engaging portion while the deformable distal portion is snugly retained in the engagable mounting receptacle of the anchoring base; wherein the tool engaging portion includes a proximal head, the head including the top portion of the base, the head presenting at least one rotatably engageable internal or external peripheral surface capable of being engaged to implant the base in a patient's skull. 2. The kit of claim 1, further including a fiducial marker, the fiducial marker including a fiducial marker shaft portion sized and shaped to be received and engaged into the mounting receptacle, the fiducial marker further including a flange extending from the fiducial marker shaft portion that engages the top portion of the anchoring base to limit travel of the shaft into the anchoring base. 3. The kit of claim 2, further including a registration receptacle having a registration receptacle shaft portion sized and shaped to be received and engaged into the mounting receptacle when the fiducial marker is removed from the mounting receptacle, the registration receptacle further including a flange extending from the registration receptacle shaft portion that engages the top portion of the anchoring base to limit travel of the registration receptacle shaft into the anchoring base. 4. The kit of claim 3, wherein the plug includes a main body portion having an exterior dimension to be substantially received within the engagable mounting receptacle when both of the fiducial marker and the registration receptacle are removed to provide a top surface that is substantially flush with the top surface of the mounting receptacle. 5. The kit of claim 1, in which the mounting receptacle is internally threaded. 6. The kit of claim 1, further including a trajectory guide coupled to the engagable mounting receptacle. 7. A kit comprising: an anchoring base, sized and shaped to be implanted within a patient's skull such that a top surface of a top portion of the base is flush to or recessed from an outer surface of the patient's skull, the base including: an externally threaded outer portion; a distal tip; a tool engaging portion including the top portion of the base, the tool engaging portion presenting at least one rotatably engagable internal surface or external peripheral surface capable of being engaged to implant the base in a patient's skull; an engagable mounting receptacle in the top portion of the base; and an anchoring base insertion tool having an engaging portion to engage the tool engaging portion and the engagable mounting receptacle and a shaft coupled to and extending from the engaging portion; wherein the engaging portion of the anchoring base insertion tool has a deformable distal portion sized and shaped to fit in the engagable mounting receptacle and to be deformed by engagement with the engagable mounting receptacle so that the deformable portion snugly fits within the engagable mounting receptacle and operable to hold the anchoring base insertion tool to the anchoring base when the deformable distal portion is fitted against the engagable mounting receptacle; wherein engaging portion of the anchoring base insertion tool further has a drive portion operable to engage the tool engaging portion while the deformable distal portion is snugly retained in the engagable mounting receptacle of the anchoring base. 8. The kit of claim 7, in which the rotatably engagable internal or external peripheral surface defines at least one non-circular orifice within the top portion of the base. 9. The kit of claim 8, in which the orifice is formed in the shape of at least one of hexagonal, star-shaped, toothed, polygonal, oval, or cruciform. 10. The kit of claim 7, wherein the patient's skull defines an outer surface relative to which the kit can be placed and in which the at least one rotatably engagable internal or external peripheral surface is positionable substantially vertical relative to the outer surface of the patient's skull when the base is affixed to the patient's skull. 11. The kit of claim 7, further including: a fiducial marker, the fiducial marker including a shaft, at least a portion of the shaft sized and shaped to be received and engaged into the mounting receptacle; and a registration receptacle including a shaft, at least a portion of the shaft sized and shaped to be received and engaged into the mounting receptacle; wherein the fiducial marker and the registration receptacle are individually received and engaged in the mounting receptacle. 12. The kit of claim 7, further comprising a plug sized and shaped to be received in the mounting receptacle and a plug removal tool; wherein the plug is constructed to allow the plug to be press-fit into the mounting receptacle; wherein the plug is sufficiently compliant to allow the plug to be removed from the mounting receptacle by inserting the plug removal tool into the plug to assist in pulling the plug out of the mounting receptacle. 13. The kit of claim 7, further including a trajectory guide coupled to the engagable mounting receptacle. 14. The kit of claim 7, wherein the tool engaging portion includes a proximal head, the proximal head including the top surface of the base, the proximal head having a rotatably engagable peripheral surface extending from the top surface of the base toward the distal tip. 15. A kit comprising: an anchoring base having an exterior surface extending from a top surface end to a second end and sized and shaped to be implanted within in a patient's skull such that a top surface is at least level with or below an outer surface of the patient's skull, the anchoring base including: an externally threaded outer portion including a thread extending from the top surface end to the second end of the anchoring base; a tool engaging portion; a distal tip; and an anchoring base receptacle extending from the top surface of the anchoring base defining a bore within the anchoring base; a locatable fiducial marker, including a shaft extending from the fiducial marker, the shaft having a distal shaft portion sized and shaped to be received and engaged into the base receptacle, the shaft being sized and configured to separate the fiducial marker from the base by a first distance when the fiducial marker shaft is engaged into the anchoring base receptacle; and a registration receptacle, separate from and interchangeable with the fiducial marker into the base receptacle, the registration receptacle includes a shaft extending from the registration receptacle, the shaft has a distal shaft portion sized and shaped to be received and engaged into the anchoring base receptacle when the fiducial marker shaft is not engaged into the base receptacle, the shaft being sized and configured to separate the registration receptacle from the base by the first distance when the registration receptacle shaft is engaged into the anchoring base receptacle; a plug positioned in the anchoring base receptacle when the fiducial marker shaft and the registration receptacle shaft are not engaged to the anchoring base receptacle; an anchoring base insertion tool having an engaging portion to engage the anchoring base receptacle and a shaft coupled to and extending from the engaging portion, wherein the anchoring base insertion tool has a deformable distal portion sized and shaped to snugly retain an engagement with the anchoring base receptacle when the deformable distal portion is fitted against the anchoring base receptacle and the base insertion tool further has a drive portion operable to engage a base drive portion of the anchoring base while the deformable distal portion is snugly retained in the anchoring base; and a guide tube, for assisting in disposing the anchoring base within the patient's skull, having: an inner guide tube wall defining a lumen extending longitudinally through the guide tube and sized to allow passage of the anchoring base and guide the anchoring base to an anchoring location on the patient's skull; an outer surface extending from a first terminal end to a second terminal end, wherein at least a portion of the outer surface defines a beveled distal tip operable to engage the patient's scalp to position the scalp a distance from an inner wall surface of the guide tube; and a flange extending outwardly from the outer surface first terminal end that is selected such that the flange stabilizes a portion of the patient's scalp near a portal in the patient's scalp when the beveled distal tip of the guide tube is pressed into a portion of the portal in the patient's scalp and the first terminal end engages the patient's skull. 16. The kit of claim 15, further including a trajectory guide coupled to the anchoring base receptacle. 17. The kit of claim 15, further comprising: a plug removal tool; wherein the plug is sufficiently compliant to allow the plug to be removed from the base receptacle by inserting the plug removal tool into the plug and pulling on the tool to pull the plug out of the base receptacle. 18. The kit of claim 15, in which the flange is longitudinally slidable along the guide tube to select the distance from the beveled distal tip to stabilize a portion of the patient's scalp. 19. The kit of claim 18, further comprising a trajectory guide coupled to the anchoring base receptacle. 20. The kit of claim 15, wherein the anchoring base includes an outer threaded wall that tapers towards a central axis of the anchoring base from the top surface end to the second end. 21. The kit of claim 15, wherein the tool engaging portion includes a proximal head, the proximal head including the top surface of the base, the proximal head having a rotatably engagable peripheral surface extending from the top surface of the base toward the distal tip. 22. The kit of claim 15, wherein the tool engaging portion includes a proximal head, the proximal head including the top portion of the base, the proximal head presenting at least one rotatably engagable internal or external peripheral surface capable of being engaged to implant the base in a patient's skull. 23. A method of placing an anchoring base in a patient's skull, comprising: positioning a guide tube, for assisting in disposing an anchoring base within the patient's skull, through a portal in a patient's scalp, the guide tube formed to have an inner guide tube wall defining a lumen extending longitudinally through the guide tube and sized to allow passage of the anchoring base and for guiding the anchoring base to an anchoring location on the patient's skull, the guide tube further extending from a first terminal end to a second terminal end, wherein at least a portion of the outer surface defines a beveled distal tip operable to engage the patient's scalp to position the scalp a distance from an inner wall surface of the guide tube, and a flange extending outwardly from the outer surface at a distance from the beveled distal tip that is selected such that the flange stabilizes a portion of the patient's scalp near a portal in the patient's scalp when the beveled distal tip of the guide tube is pressed into a portion of the portal in the patient's scalp when the first terminal end engages the patient's skull; contacting the patient's skull with the first terminal end of the guide tube; stabilizing the patient's scalp with the flange; engaging the anchoring base with an anchoring base insertion tool having an engaging portion to engage the anchoring base receptacle and a shaft coupled to and extending from the engaging portion, including deforming a deformable distal portion of the engaging portion by contacting the deformable distal portion to the anchoring base receptacle and holding the anchoring base to the anchoring base insertion tool with the deformed deformable distal portion; passing the anchoring base through the guide tube once the scalp is stabilized; inserting the anchoring base into the patient's skull such that a top surface is at least level with or below an outer surface of the patient's skull, the anchoring base having an exterior surface extending from a top surface end to a second end and sized and shaped to be implanted within in a patient's skull, the anchoring base including an externally threaded outer portion including a thread extending from the top surface end to the second end of the anchoring base; a tool engaging portion; a distal tip, and an anchoring base receptacle extending from the top surface of the anchoring base defining a bore within the anchoring base; providing a locatable fiducial marker, including a shaft extending from the fiducial marker, the shaft having a distal shaft portion that is sized and shaped to be received and engaged into the base receptacle, the shaft being sized and configured to separate the fiducial marker from the base by a first distance when the fiducial marker shaft is engaged into the anchoring base receptacle; providing a registration receptacle, separate from and interchangeable with the fiducial marker into the base receptacle, the registration receptacle having a shaft extending from the registration receptacle, the shaft having a distal shaft portion sized and shaped to be received and engaged into the anchoring base receptacle when the fiducial marker shaft is not engaged into the base receptacle, the shaft being sized and configured to separate the registration receptacle from the base by the first distance when the registration receptacle shaft is engaged into the anchoring base receptacle; and providing a plug to be positioned in the anchoring base receptacle when both the fiducial marker shaft and the registration receptacle shaft are not engaged to the anchoring base receptacle. 24. The method of claim 23, further comprising: passing a trocar through the guide tube; forming the portal in the scalp with the trocar once it is passed through the guide tube; and removing the trocar from the guide tube; wherein passing the anchoring base through the guide tube occurs after the trocar is removed. 25. The method of claim 23, further comprising: selectively engaging one of the locatable fiducial marker, the registration receptacle and the plug with the anchoring base.
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