초록 ▼

The present invention involves a device for tissue, especially hard tissue, penetration device which incorporated a novel paddle-shaped needle for low friction rotatory penetration of hard tissue and a controlled delivery or extraction system for transfer of material from to device into a tissue sit

The present invention involves a device for tissue, especially hard tissue, penetration device which incorporated a novel paddle-shaped needle for low friction rotatory penetration of hard tissue and a controlled delivery or extraction system for transfer of material from to device into a tissue site or transfer of material from the tissue site to the device. The delivery system or extraction system includes at least on solenoid or other similar device.

대표청구항 ▼

[ We claim:] [1.] A device comprising:a. a fluid reservoir;b. a tissue penetrator or needle detachably engaging a first end of the reservoir;c. a plunger associated with the reservoir at its second end and designed to slidingly engage an interior surface of the reservoir;d. a solenoid having a shaft

[ We claim:] [1.] A device comprising:a. a fluid reservoir;b. a tissue penetrator or needle detachably engaging a first end of the reservoir;c. a plunger associated with the reservoir at its second end and designed to slidingly engage an interior surface of the reservoir;d. a solenoid having a shaft detachably engaging a top of the plunger for moving the plunger within the reservoir at a controlled rate for controlled delivery of material into or extraction of bio-material out of a tissue site;e. a power supply and associated circuitry for supplying electrical power to the solenoid;f. a switch for starting and stopping the device;g. a housing surrounding the reservoir, the plunger, the solenoid and the power supply; andh. a disposable retractable protector attached to the housing at its proximal end and including a septum at its distal to protect a tip of the penetrator and adapted to engage a portion of an interior surface of the housing at its proximal end.