Surgical instrument

Details Surgical instrument Surgical instrument

1995-04-28

1997-04-08

Apley, Richard J.

Surgery

Specula

Retractor

600201, A61B 1702

Patent

active

056182600

ABSTRACT:
In order to make the covered tissue areas visible in an X-ray picture when using a surgical instrument for the retention of tissue which has at least one valve held on one side, also when using a material impermeable to X-rays, it is suggested that the contact surface of the valves have openings in a distribution which leaves an increasing, non-perforated cross-sectional area from the free end of the contact surface up to its holder.

REFERENCES:
patent: D343235 (1994-01-01), Levahn
patent: 569839 (1896-10-01), Roeloffs
patent: 1252177 (1918-01-01), Redfield
patent: 1550403 (1925-08-01), Turkus
patent: 3565061 (1971-02-01), Reynolds
patent: 3729006 (1973-04-01), Wilder et al.
patent: 3731673 (1973-05-01), Halloran
patent: 5167222 (1992-12-01), Schinkel et al.

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