Minimally invasive biomaterial injection system

摘要

This invention relates generally to an instrumentation and implant system providing minimally invasive vertebral augmentation. The apparatus including an expandable membrane sized and configured to be located within a cavity in a patient's bone and having an interior volume for receiving bone filler material; a delivery cannula in communication with the membrane for providing bone filler material to the membrane; and an evacuation cannula in fluid communication with the membrane for receiving a portion of the provided bone filler material from the membrane.

主权项

1. An apparatus for providing a bone filler material to a cavity in a patient's bone, the apparatus comprising:
an expandable membrane sized and configured to be located within the cavity in the patient's bone, the expandable membrane having an interior volume for receiving the bone filler material; a delivery cannula in fluid communication with the membrane for providing bone filler material to the membrane; an evacuation cannula in fluid communication with the membrane for receiving a portion of the provided bone filler material from the membrane; and a withdraw element coupled to the membrane such that movement of the withdraw element towards a proximal end of at least one of the delivery cannula and the evacuation cannula moves the membrane towards the proximal end and removes the membrane from received bone filler material.