Tamping mechanism

Details Tamping mechanism Tamping mechanism

2005-08-16

2005-08-16

Jackson, Gary (Department: 3731)

Surgery

Instruments

Sutureless closure

C606S139000, C606S144000

Reexamination Certificate

active

06929655

ABSTRACT:
The invention relates to a loading device provided with a tamping mechanism with which two or three functional operations needed in the sealing of punctures in blood vessels can be sequentially executed in one single manual operation. In a preferred embodiment of the tamping mechanism, a cam curve (15) transforms the single manual operation of a tamping button (8) being the one end of a plunger (14) into the retraction of a pusher (5), which has been used to insert an inner seal (1) into the vessel, and, then, the advancement of a tamping tube (10), which pushes an outer seal (2) into engagement with the outer vessel wall. In the end position of the tamping button (8), a recess (23) in the plunger (14) releases a thread (3), which tamps the inner and outer seals (1, 2) together around the intermediate vessel wall, from a retainer (16), thereby completing the third operation step.

REFERENCES:
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patent: 5350399 (1994-09-01), Erlebacher et al.
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patent: 5441517 (1995-08-01), Kensey et al.
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patent: 5935147 (1999-08-01), Kensey et al.
patent: 6007563 (1999-12-01), Nash et al.
patent: 6090130 (2000-07-01), Nash et al.
patent: 6425911 (2002-07-01), Akerfeldt et al.
patent: WO 00/78226 (2000-12-01), None

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