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专利名称：PEDICLE SCREW AND DEVICE FOR
INJECTING BONE CEMENT INTO BONE
发明人：Ji-Hoon Her,Sang-Hyoung Kim申请号：US12763366申请日：20100420
公开号：US20110098714A1公开日：20110428
专利附图：
摘要：Disclosed is a pedicle screw used in spinal fusion surgery and a device forinjecting bone cement into a spine having low bone mineral density by using a pediclescrew so as to enhance strength of the spine. The pedicle screw includes a screw rod
fixedly inserted into a bone, a head section provided at an upper portion of the screw rodand formed at an inner portion thereof with a U-shaped recess and a screw part, and acoupling section coupled with the screw part of the head section. The coupling section iscoupled with a rod support section including a bolt having a screw structure provided atan upper portion of the rod support section, a reverse U-shaped recess formed at alower portion of the rod support section, and a pair of protrusions provided at lateralportions of the rod support section. The screw part of the head section is formed with apair of guide slots. The screw rod is formed at an inner portion thereof with a hollowsection, injection holes communicated with the hollow section are formed in the screwrod, and a feeding hole is formed in the U-shaped recess for feeding bone cement. Thebone cement injection device has a cannula including an elongated body, a pedicle screwcoupling member provided at one end of the elongated body so as to be fixed to thepedicle screw, and a handle provided at the other end of the elongated body and havingan injector coupling member which is coupled to an inlet of an injector, and an impactorincluding an elongated cylindrical pressure rod inserted into the elongated body of thecannula and having a length longer than a length of the elongated body of the cannula,and a handle attached to one end of the elongated cylindrical pressing rod.
申请人：Ji-Hoon Her,Sang-Hyoung Kim
地址：Suwon si KR,Namyangju si KR
国籍：KR,KR
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