Remotely-activated vertebroplasty injection device
First Claim
Patent Images
1. A remotely-activated device for injecting a bone cement into a patient, comprising:
- a pump defining an injection chamber having an exit opening, the pump having a bone cement for injection being located in the injection chamber, and a piston for driving the bone cement for injection through the exit opening;
a hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient;
a remote actuator, separate from the pump, and including a base and a lever, the lever having a first portion pivotally-connected to the base; and
a housing connecting the actuator to the pump across a distance;
whereby pivotal movements of the lever apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for remote injection through the exit opening;
wherein the distance is at least about one foot.
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Accused Products
Abstract
A remotely-activated injection device for use in vertebroplasty is provided to inject a flourescent probe material into a patient. The injection device includes a pump defining an injection chamber having an exit opening; an actuator; and a cable having a first end coupled to the actuator, and a second end remotely engaging the pump. The actuator remotely controls the pump by responsive movement of the cable to thereby cause injection of a flourescent probe material from the injection chamber of the pump through the exit opening to the patient.
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Citations
30 Claims
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1. A remotely-activated device for injecting a bone cement into a patient, comprising:
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a pump defining an injection chamber having an exit opening, the pump having a bone cement for injection being located in the injection chamber, and a piston for driving the bone cement for injection through the exit opening; a hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient; a remote actuator, separate from the pump, and including a base and a lever, the lever having a first portion pivotally-connected to the base; and a housing connecting the actuator to the pump across a distance; whereby pivotal movements of the lever apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for remote injection through the exit opening; wherein the distance is at least about one foot. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 18, 19, 21, 22)
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6. A remotely-activated device for injecting a bone cement into a patient, comprising:
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a pump defining an injection chamber having an exit opening, the pump having; a) a bone cement for injection being located in the injection chamber; b) a piston for driving the bone cement for injection through the exit opening; and c) a piston driver for engaging the piston to allow axial movement of the piston along a first axis defined by first and second end portions of the injection chamber; a hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient; a remote actuator, separate from the pump, and configured to be held and activated by hand; and a housing connecting the actuator to the pump across a distance; whereby manual activation of the actuator applies a force through the housing to cause responsive movement of the piston to drive the bone cement for remote injection through the exit opening; wherein the piston driver comprises a hydraulic cylinder. - View Dependent Claims (14, 15, 16, 20)
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17. A remotely-activated device for injecting a bone cement into a patient, comprising:
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a pump defining an injection chamber having an exit opening, the pump having a bone cement for injection being located in the injection chamber, and a piston for driving the bone cement for injection through the exit opening; a hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient; a remote actuator, separate from the pump, and including a base and a lever, the lever having a first portion pivotally-connected to the base; and a housing connecting the actuator to the pump across a distance; whereby pivotal movements of the lever apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for remote injection through the exit opening; and wherein the distance is sufficient to allow an operator to operate the remote actuator outside the range of a fluoro-field directed at the pump.
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23. A method for remotely injecting a bone cement comprising:
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guiding a hollow bone needle to a desired location within a patient'"'"'s vertebral body; placing a bone cement for injection into an injection chamber of a device, the device comprising; a pump defining the injection chamber having an exit opening, the device further having a piston for driving the bone cement for injection through the exit opening; the hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient; a remote actuator spaced a distance apart from the pump and including a base and a lever, the lever having a first portion pivotally-connected to the base; and a housing connecting the actuator to the pump; whereby pivotal movements of the lever apply a force through the housing to cause responsive movement of the piston to drive the bone cement for injection through the exit opening; pivotally moving the lever to apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for injection through the exit opening. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification