Hemostatic medical device

[0006]In a first embodiment, the hemostatic medical device is a prefilled dual chamber syringe having a piston that is provided in the body forward of the plunger and subdivides the body in a starting position into a front compartment that is filled with a hemostatic substance and a rear compartment that is filled with a fluid. Immediately forward of the piston in the starting position is a means for allowing the contents in the rear and front compartments to mix, such as a bypass formed as an inwardly open and axially extending groove, a membrane optionally having one or more O-rings or support where the membrane may be ruptured, pierced or displaced, or a combination thereof. Thus when the plunger is advanced, the fluid in the rear compartment moves the piston forward until the rear end of the bypass groove is exposed in the rear compartment. Further advance of the plunger forces the fluid in the rear compartment past the piston into the front compartment where it mixes with the h...

[0016]In a second embodiment, a hemostatic medical system comprises a first standard syringe having a tubular body prefilled with the hemostatic substance, having a front end adapted to receive another syringe, a needle or a cannula and a rear end formed with radially projecting finger braces. A plunger is axially displaceable in the body and has a rod projecting axially rearwardly from the rear end so that, when the plunger is advanced, the content thereof is expressed through the front end. The system further comprises a second syringe, prefilled with fluid such as sterile saline or flowable gelatin that may be connected to the first syringe. The plunger on the second syringe may be advanced to express the fluid into the tubular body of the first syringe, thereby reconstituting the hemostatic substance in the first syringe. The plungers on the first and second syringes may be alternately advanced to facilitate further mixing of the hemostatic substance. Upon complete mixing, the h...