Remotely actuated system for bone cement delivery
First Claim
1. An implant material injection system, the system comprising:
- a pressure driver, and a separate container for implant material, wherein said driver and said separate container are adapted to form a sealed pressure-tight interface between each other, said pressure driver comprising a piston and a sleeve, wherein said piston and said sleeve are adapted to draw implant material into at least a portion of a chamber defined by said sleeve upon retracting said piston and to expel implant material from said pressure drive at a pressure level upon advancing said piston.
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Accused Products
Abstract
An injection system for delivering viscous fluids is disclosed. Exemplary fluids included flowable hard tissue implant material such as Polymethylmethacrylate (PMMA). The system comprises a manual actuator, a control line and a dispenser. The control line may be flexible cable set within a housing running between the actuator and dispenser head. In which case, the actuator is designed to enable reciprocal movement of the cable relative to the cable housing. The actuator may be designed for one-handed use like a syringe. Components of the dispenser may be utilized as a mixing vessel prior to inserting a drive unit to enable fluid delivery. Prior to use, fluid is loaded into a portion section of the drive unit from a reservoir section of the dispenser head by retracing the cable via the retractor. Fluid is expelled from the dispenser portion of the system upon advancing the cable.
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Citations
23 Claims
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1. An implant material injection system, the system comprising:
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a pressure driver, and a separate container for implant material, wherein said driver and said separate container are adapted to form a sealed pressure-tight interface between each other, said pressure driver comprising a piston and a sleeve, wherein said piston and said sleeve are adapted to draw implant material into at least a portion of a chamber defined by said sleeve upon retracting said piston and to expel implant material from said pressure drive at a pressure level upon advancing said piston. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20, 21, 22, 23)
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11. An implant material injection system, the system comprising:
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a pressure driver, a container for implant material, and a remote actuator connected to said pressure driver, said pressure driver comprising a piston and a sleeve, wherein said piston and said sleeve are adapted to draw implant material into at least a portion of a chamber defined by said sleeve upon retracting said piston and to expel implant material from said pressure drive at a pressure level upon advancing said piston, said remote actuator comprising first and second grip portions and being adapted to drive said piston by reciprocal movement of said grip portions relative to each other. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An implant material injection system, the system comprising:
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a pressure driver, a container for implant material, and a means for remote actuation of said pressure driver, said pressure driver comprising a piston and a sleeve, wherein said piston and said sleeve are adapted to draw implant material into at least a portion of a chamber defined by said sleeve upon retracting said piston and to expel implant material from said pressure drive at a pressure level upon advancing said piston.
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18. A method of delivering flowable implant material, the method comprising:
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providing an implant material injection system comprising a pressure driver and container for implant material;
connecting said pressure driver to a cannula emplaced at a location for implant material delivery;
loading implant material into said pressure driver;
driving material from said pressure driver into said implant material location;
again loading implant material into said pressure driver; and
again driving material from said pressure driver into said implant material location.
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Specification