Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1988-04-25
1989-11-28
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604228, A61M 500
Patent
active
048834661
ABSTRACT:
An improved non-resuable syringe comprising a barrel having one open end and one restricted end through which a liquid may pass, a piston is slidably positioned within the barrel, a shaft is positioned so as to be freely slidable within the barrel and has one end extending beyond the open end of the barrel, a connector has one end engaging the piston in rotatable relation thereto, and a guide means as formed on the exterior of the shaft so as to receive the other end of the connector and causing the connector to disengage from the shaft. The piston has an orifice at one end for receiving an arrowhead-shaped portion of the connector. The connector has a forked portion having inwardly formed pins for engaging guide slots in the exterior of the shaft. The shaft includes a cylindrical member connected to the shaft and a Z-shaped groove configuration formed on opposing sides of the cylindrical member. During use of the syringe, the pins on the connector follow the pathway of the formed groove on the connector.
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