Remotely Activated Piezoelectric Pump for Delivery of Biological Agents to the Intervertebral Disc and Spine
First Claim
1. An apparatus for delivering osteogenetic agent to the spine of a patient comprising:
- a implanted spine pump coupled to a vertebra of the patient;
a spinal cage inserted between two adjacent vertebrae of the patient and coupled to the spine pump; and
a external removable means for supplying power to the spine pump by means of induction.
2 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure describes a remotely activated piezoelectric pump for delivery of biological agents to the intervertebral disc and spine in order to achieve spinal fusion. A spinal pump is implanted on the vertebrae of a patient and a spinal cage is inserted in between two adjacent vertebrae after removal of the vertebrae disc. A piezoelectric motor drives the pump and pushes osteogenetic agent through the spinal cage and into a sponge disposed within the cage. The pump is charged by an external removable induction belt worn by the patient. Delivery duration and delivery frequency may be changed before implantation of the spine pump according to the specific needs of the patient. The current device employs a mathematical model that enables the regulation as well as attenuation of the bone fusion process by extending and generalizing the model to enhance and optimize the delivery of osteogenetic agent in a regulated manner.
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Citations
20 Claims
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1. An apparatus for delivering osteogenetic agent to the spine of a patient comprising:
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a implanted spine pump coupled to a vertebra of the patient; a spinal cage inserted between two adjacent vertebrae of the patient and coupled to the spine pump; and a external removable means for supplying power to the spine pump by means of induction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for treating lower back pain in a patient comprising:
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surgically implanting a spine pump to a vertebra of the patient; surgically implanting a spinal cage in the vertebra disc space between two adjacent vertebrae and coupling it to the spine pump; dispensing an amount of osteogenetic agent from the spine pump to the spinal cage; delivering the osteogenetic agent from the spinal cage to the vertebra disc space; and inductively recharging the spine pump. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for delivering osteogenetic agent to the spine of a patient comprising:
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a implanted spine pump coupled to a vertebra of the patient; a spinal cage inserted between two adjacent vertebrae of the patient and coupled to the spine pump; and a external removable means for supplying power to the spine pump by means of induction, and wherein the spine pump further comprises a plurality of accelerometers coupled to the spine pump, and where at least one accelerometer is also coupled to a vertebra of the patient beneath the spinal cage. - View Dependent Claims (20)
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Specification