[특허]Devices, methods and systems for affixing an access device to a vertebral body for the insertion of bone cement

[미국특허] Devices, methods and systems for affixing an access device to a vertebral body for the insertion of bone cement 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/88
출원번호	US-0841380 (2013-03-15)
등록번호	US-9918766 (2018-03-20)
발명자 / 주소	Phan, Christopher U. Kohm, Andrew Poser, Robert Kamdar, Kirti P.
출원인 / 주소	DFine, Inc.
대리인 / 주소	Stoel Rives LLP
인용정보	피인용 횟수 : 0 인용 특허 : 50

초록 ▼

Devices and method discussed for device for delivering a pressurized substance to an opening in bone within a vertebral column, useful to provide access to structures in the vertebral so that a substance, such as bone cement can be delivered through a lumen or portal or for providing access to the o

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1. A method of delivering a substance to an opening located in a bone of a vertebral column, the method comprising: advancing an access device to the bone, where the access device includes a delivery lumen extending along a longitudinal axis of the access device from a proximal opening to a distal port;actuating a shuttle mechanism of the access device to deploy an anchoring portion of the access device within the opening in the bone;anchoring the access device to the bone by engaging the anchoring portion against a wall portion of the bone surrounding the opening such that the delivery lumen creates a fluid path from the proximal opening through the distal port and into the opening;where the anchoring portion comprises an expandable structure such that anchoring the access device comprises forcing the expandable structure against a wall of the opening to secure the access device within the opening;where the expandable structure comprises a slotted portion of a slidable tube, and where the access device further comprises a radially protruding ramp portion, wherein anchoring the access device comprises advancing the slidable tube over the radially protruding ramp portion to cause the slotted portion to expand against the wall portion of the opening; anddelivering the substance through the delivery lumen into the opening where the anchoring portion prevents rearward movement of the access device from the opening during delivery,wherein the ramp portion remains in contact with the slotted portion while the substance is delivered through the delivery lumen. 2. The method of claim 1, where advancing the access device to the bone comprises advancing the access device over a guidewire, where the guidewire is positioned within the opening in bone. 3. The method of claim 1, where the opening comprises an artificially created hole for securing an implant, the method further comprises positioning the implant within the hole. 4. The method of claim 1, where the delivery lumen extends through an inner tube and where the expandable structure comprises a slotted portion of a slidable tube located over the inner tube, and where the inner tube is affixed to the slidable tube at a distal location, wherein anchoring the access device comprises moving the inner tube relative to the slidable tube to cause the slotted portion to expand against the wall portion of the opening. 5. The method of claim 1, where the anchoring portion is formed on an end of a slidable tube, the shuttle mechanism operatively coupled to the slidable tube, where actuating the shuttle mechanism to deploy the anchoring portion further comprises actuating the shuttle mechanism to translate the slidable tube along the longitudinal axis of the access device. 6. The method of claim 5, where the anchoring portion comprises a radially expandable structure. 7. The method of claim 1, where the anchoring portion is formed on an end of an inner tube, the shuttle mechanism operatively coupled to a slidable tube surrounding the inner tube, where actuating the shuttle mechanism to deploy the anchoring portion further comprises actuating the shuttle mechanism to translate the inner tube along the longitudinal axis of the access device. 8. The method of claim 7, where the anchoring portion comprises a radially expandable structure. 9. The method of claim 1, where actuating the shuttle mechanism of the access device further includes rotating the shuttle mechanism about the longitudinal axis of the access device. 10. The method of claim 1, the method further comprising disengaging the anchoring portion from the wall portion of the bone after delivering the substance through the delivery lumen. 11. The method of claim 10, where disengaging the anchoring portion from the wall portion further includes actuating the shuttle mechanism to retract the anchoring portion into a tube of the access device. 12. The method of claim 10, where disengaging the anchoring portion from the wall portion further includes actuating the shuttle mechanism to advance a tube over the anchoring portion of the access device.

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[미국특허] Devices, methods and systems for affixing an access device to a vertebral body for the insertion of bone cement 원문보기

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[미국특허] Devices, methods and systems for affixing an access device to a vertebral body for the insertion of bone cement 원문보기

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