Medical implantable site having a multi-layer puncture zone

Details Medical implantable site having a multi-layer puncture zone Medical implantable site having a multi-layer puncture zone

2011-07-26

2011-07-26

Lucchesi, Nicholas D (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S288010

Reexamination Certificate

active

07985207

ABSTRACT:
An implantable device (1) for injecting fluid and/or for tapping fluid, the device having a housing (3) provided with a puncture zone (4) able to be transpierced by a hollow needle (5) for injecting fluid into and/or tapping fluid from a chamber (3A) provided inside the housing (3). The implantable device has a puncture zone (4) made up of at least first and second superposed flexible membranes (6, 7) mounted to be free, at least locally, relative to each other, to allow the membranes, at least locally, to move along each other, so that, once the needle (5) has been removed, the orifice formed by the needle (5) is sliced into first and second sub-orifices (6A,7A) substantially not coinciding so as to impart a substantially leaktight property to the puncture zone (4).

REFERENCES:
patent: 4190040 (1980-02-01), Schulte
patent: 4685447 (1987-08-01), Iversen et al.
patent: 4840615 (1989-06-01), Hancock et al.
patent: 4857053 (1989-08-01), Dalton
patent: 6060639 (2000-05-01), Petrick
patent: 2002/0049489 (2002-04-01), Herweck et al.

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