Elongated-member-driving apparatus – Surgical stapler – With magazine
Patent
1995-04-06
1997-05-27
Rada, Rinaldi I.
Elongated-member-driving apparatus
Surgical stapler
With magazine
227 19, 2271761, A61B 17115
Patent
active
056324332
ABSTRACT:
A surgical stapling instrument for performing a circular anastomosis stapling operation is provided. The surgical instrument includes a stapling head assembly mounted by a flexible support shaft to an actuator handle assembly. The support shaft is capable of bending in any radial direction relative to its centerline into a curved configuration suitable for insertion into a patient. The flexible support shaft includes a dual coil structure which is adapted to support itself in any curved configuration and to resist deflection upon insertion into the patient and actuation of the stapling head assembly. The stapling head assembly includes a driver assembly which is operable in multiple stages to separate the staple forming and tissue cutting actions to reduce the peak force required to operate the instrument. The actuator handle assembly includes a staple actuating lever and a cam follower assembly which operate in two stages with different mechanical advantages to facilitate the operation of the instrument by a surgeon. The actuator handle assembly includes a thumb wheel for opening and closing the anvil and an adjusting knob for adjusting the anvil gap. A control lever is provided for pivoting the stapling head assembly relative to the flexible support shaft.
REFERENCES:
patent: 3193165 (1965-07-01), Akhalaya et al.
patent: 4473077 (1984-09-01), Noiles et al.
patent: 4485817 (1984-12-01), Swiggert
patent: 4488523 (1984-12-01), Scichman
patent: 4576167 (1986-03-01), Noiles
patent: 4606343 (1986-08-01), Conta et al.
patent: 4646745 (1987-03-01), Noiles
patent: 4671445 (1987-06-01), Barker et al.
patent: 4754909 (1988-07-01), Barker et al.
patent: 4907591 (1990-03-01), Vasconcellos et al.
patent: 4962877 (1990-10-01), Hervas
patent: 5005749 (1991-04-01), Aranyi
patent: 5042707 (1991-08-01), Taheri
patent: 5104025 (1992-04-01), Main et al.
patent: 5139513 (1992-08-01), Segato
patent: 5205459 (1993-04-01), Brinkerhoff et al.
patent: 5474223 (1995-12-01), Viola et al.
Churchill Philip J.
Grant Richard L.
Lang Michael
Lawrence W. Thompson
Coletti Paul A.
Ethicon Inc.
Rada Rinaldi I.
Schrock Allan M.
LandOfFree
Surgical anastomosis stapling instrument with flexible support s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surgical anastomosis stapling instrument with flexible support s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surgical anastomosis stapling instrument with flexible support s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2323178