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US 7,967,772 B2Granted
Injector for viscous materials
AssigneeiScience Interventional Corporation
InventorsJohn R. McKenzie, Stanley R. Conston, David J. Kupiecki
Life of this patent
Estimating the term…
Abstract
An injector is provided to deliver microquantities of viscous materials into the body, such as the eye, for surgical purposes. The injector comprises a syringe body with a plunger disposed therein coupled to a positive displacement mechanism capable of progressively advancing the plunger to precisely deliver microquantities of materials at a constant or predetermined delivery rate.
Claims25
A device for delivering microquantities of viscous materials comprising
- an injector for delivery of viscous materials from a cartridge containing a prepackaged quantity of said viscous materials, said injector comprising a syringe body with a proximal end, a distal end with an outlet and a hollow bore between the ends sized and shaped to receive said cartridge;
- an internal needle in communication with said outlet and internal to the distal end of said injector, said internal needle located for penetration of said cartridge;
- and a plunger disposed within the hollow bore coupled to a positive displacement mechanism that progressively advances the plunger toward the distal end of the syringe body to eject the material within a cartridge in the hollow bore through said outlet;
- and
- a microcannula or microcatheter attached to said outlet in communication with said needle.
2 more elements
A kit for delivering microquantities of viscous materials comprising
- an injector for delivery of viscous materials from a cartridge containing a prepackaged quantity of said viscous materials, said injector comprising a syringe body with a proximal end, a distal end with an outlet and a hollow bore between the ends sized and shaped to receive said cartridge;
- an internal needle in communication with said outlet and internal to the distal end of said injector, said internal needle located for penetration of said cartridge;
- and a plunger disposed within the hollow bore coupled to a positive displacement mechanism that progressively advances the plunger toward the distal end of the syringe body to eject the material within a cartridge in the hollow bore through said outlet;
- and
- a microcannula or microcatheter adapted for attachment to said outlet in communication with said needle.
2 more elements
Dependencies are inferred from the claim text.