Hub for syringe, connecting structure of hub, syringe, piston, n

Details Hub for syringe, connecting structure of hub, syringe, piston, n Hub for syringe, connecting structure of hub, syringe, piston, n

1996-07-23

1998-02-10

Buiz, Michael

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604218, A61M 550

Patent

active

057163413

ABSTRACT:
A syringe assembly has a hub body which can be inserted into a hub insertion hole and pulled out thereof into inside a sringe body. A chamfer portion is formed at the hub body, being capable of engaging with the hub insertion hole. A needle insertion hole capable of having a needle inserted therein is provided with an end face of the hub body in a direction of an axis center of the hub body. A flow hole is provided with the hub body such that the needle insertion hole and an inside of the syringe body are communicated with each other in the direction of the axis center. A piston engagement hole is provided on end face side of the hub body, so as to engage with the piston. A seal taper is annularly formed at the hub body, such that its outside diameter is made narrower for the end face side, so as to abut on and contact with an inner face of the hub insertion hole.

REFERENCES:
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European Search Report, Appln. No. EP 94 10 9617.

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