Vertebroplasty device having a flexible plunger
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DEPUY SPINE SARL
- Publication Date
- 2006-11-08
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
Background technique
[0001] In vertebroplasty, surgeons seek a way to treat vertebral compression fractures by injecting a bone cement such as PMMA into the fractured area. In an AJNR: Clinical Report by Jensen et al., Nov. 18, 1997, Jensen described mixing two PMMA precursor components in a dish to make a viscous bone cement; this bone cement was filled into a 10ml syringe, The cement is injected from the larger syringe into multiple smaller 1 ml syringes, and the viscous bone cement is finally delivered through the needle attached to the smaller syringe into the desired area of ββthe vertebral body.
[0002] To ensure that the injected cement does not move too far from its intended location, clinicians often monitor the location of the injected bone cement using fluoroscopy. However, because delivery of cement using a simple syringe requires the clinician's hand to be within the fluoroscopy field, delivering cement directly under fluoroscopy may result in the clinician bein...