[특허]Systems for treating a vertebral body

[미국특허] Systems for treating a vertebral body 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/34 A61B-017/16 A61B-017/88 A61B-018/12 A61B-017/00 A61B-018/00 A61B-018/14
출원번호	US-0887007 (2015-10-19)
등록번호	US-9504481 (2016-11-29)
발명자 / 주소	Germain, Aaron Truckai, Csaba
출원인 / 주소	DFine, Inc.
대리인 / 주소	Stoel Rives LLP
인용정보	피인용 횟수 : 0 인용 특허 : 57

초록 ▼

Methods and devices that displace bone or other hard tissue to create a cavity in the tissue. Where such methods and devices rely on a driving mechanism for providing moving of the device to form a profile that improves displacement of the tissue. These methods and devices also allow for creating a path or cavity in bone for insertion of bone cement or other filler to treat a fracture or other condition in the bone. The features relating to the methods and devices described herein can be applied in any region of bone or hard tissue where the tissue or bone is displaced to define a bore or cavity instead of being extracted from the body such as during a drilling or ablation procedure.

대표청구항 ▼

1. A medical device for displacing hard tissue and coupleable to a power supply, the medical device comprising: a handle having an actuating portion and a connector for electrically coupling the osteotome device to the power supply;a shaft comprising a first sleeve located concentrically within a second sleeve, the shaft having a distal portion comprising a working end capable of moving between a linear configuration and an articulated configuration where each sleeve comprises a series of openings that compress when the working end moves to the articulated configuration to limit deflection of the working end, where the respective series of openings are radially offset in adjacent sleeves, where a first conductive portion of the shaft is electrically coupleable to a first pole of the power supply;a tip located at a distal tip of the first sleeve of the working end, the tip adapted to displace hard tissue, where the tip is coupleable to a second pole of the power supply, such that when activated, current flows between a portion of the tip and the shaft;a non-conductive layer electrically isolating the first sleeve from the first conductive portion; andwhere the shaft is configured to have a column strength to transfer an impact force applied to the handle to the distal portion of the shaft and the tip to mechanically displace the hard tissue. 2. The medical device of claim 1, where the first sleeve is affixed to the second sleeve at the working end such that relative axial movement of the first and second sleeves causes the working end to assume the articulated configuration. 3. The medical device of claim 1, where the second sleeve is electrically coupleable to the power supply such that the first conductive portion is on the second sleeve. 4. The medical device of claim 1, further comprising a third sleeve located concentrically about the second sleeve and where the third sleeve is electrically coupleable to the power supply such that the first conductive portion is on the third sleeve. 5. The medical device of claim 4, where the third sleeve ends at an intermediate portion of the device to limit torque or rotational forces generated by the handle. 6. The medical device of claim 4, where the third sleeve further includes slots or notches on an exterior surface of the third sleeve that face outward from a direction of the articulated configuration such that an interior surface of the articulated configuration is solid. 7. The medical device of claim 4, where a series of slots or notches on the third sleeve have a uniform width. 8. The medical device of claim 4, where a series of slots or notches on the third sleeve vary in a width. 9. The medical device of claim 4, where the second sleeve is affixed to the third sleeve at the working end. 10. The medical device of claim 1, where the first sleeve is advanceable out of the shaft. 11. The medical device of claim 1, further comprising a force-limiting assembly comprising a spring-biased bearing surface coupled between the actuating portion and the first sleeve such that upon reaching a threshold force, the spring biased bearing surface deflects to cause the actuating portion to disengage the first sleeve. 12. The medical device of claim 1, further comprising at least one spring element extending through the first sleeve, where the spring element is affixed to the shaft and causes the working end to assume the linear configuration in a relaxed state. 13. The medical device of claim 12, where the at least one spring element comprises a plurality of spring elements. 14. The medical device of claim 1, wherein the first sleeve is coupled to the actuation portion of the handle such that rotation of the actuation portion of the handle causes axial movement of the first sleeve to deform the working end into the articulated configuration. 15. The medical device of claim 1, further comprising a lumen extending through the shaft and working end. 16. The medical device of claim 15, where the tip is solid and where the lumen terminates proximal to the tip. 17. The medical device of claim 15, further comprising a source of a bone cement material that is fluidly coupled to the lumen such that the bone cement material can pass through the lumen to exit at the working end. 18. The medical device of claim 17, wherein the lumen terminates in a side opening in a wall of the shaft such that bone cement material exits proximal to the distal tip. 19. The medical device of claim 1, where the series of openings on the first sleeve vary in a width. 20. The medical device of claim 1, where the first and second sleeves are prevented from rotating with respect to one another.

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[미국특허] Systems for treating a vertebral body 원문보기

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