Collagen Corporation

Philip R Palin

Daniel R Prows

William G Braun

Mark E Mitchell

Brent L Von Moll

Bruce N Watts

Tony F Lai

An apparatus for mixing a particulate material into a liquid includes a pair of variable volume receptacles interlinked by a communication passage. A combined volume of liquid and particulate material is received within the variable volumes, and the volume of the variable volumes is alternately reduced and to force the materials back and forth through the connection passage. The variable volumes may be formed from a rigid walled cylinder having a free floating piston therein, and the piston and inner diameter may have a tight, sealed gap therebetween. To load the piston into the cylinder without effecting the seals, a load apparatus may be used to depress the seals inwardly of the piston and align the piston in the cylinder.

Apparatus and method of mixing materials in a sterile environment

A device for indicating the proper fill level for unmarked syringes is disclosed. This device employs the intersection of a perpendicular defracted sheet of low power visible laser light with the barrel of the syringe being filled as the indication of the proper fill level. A method of filling syringes which employs this device to indicate fill level is also disclosed.

Laser fill-level indicator for blank syringes

An injector is disclosed for administering fluids such as medications and tissue-augmenting suspensions of collagen to laryngeal tissues. The injector includes a needle, a hollow connector tube, and a syringe receiver into which syringes of collagen or a like low-viscosity fluid are inserted. The injector is adapted for one-hand operation and the serial use of several syringes of collagen or like fluid.

Growing community of inventors

Sunnyvale, CA, United States of America

Philip R Palin