Disposable biopsy needle unit

Details Disposable biopsy needle unit Disposable biopsy needle unit

1984-12-20

1987-04-07

Kamm, William E.

Surgery

Truss

Pad

A61B 1000

Patent

active

046552260

ABSTRACT:
An improved disposable biopsy needle unit (12) includes a metal cannula (16), a molded plastic T-shaped handle (18), and a removable stylet (20). A solid hub portion (28) of the handle (18) is formed around a lateral tab (30) near the proximal end of the cannula (16) for reinforcement. A hollow fitting (32) extends between the proximal end of the cannula (16) and a recess between the opposite wing portions (26) of the handle (18). Locking ears (48) are preferably provided on the fitting (32) for releasable attachment to an aspiration device, such as a syringe (14). The stylet (20) includes a solid needle (34) with a turned proximal end within a molded plastic cap (38) for reinforcement. A lug (44) and slot (46) are provided on the stylet (20) and handle (18), respectively, for properly locating the stylet when inserted into the cannula (16). A second embodiment (80) incorporates an upset, non-circular boss (82) on the fitting (32') instead of a tab (30) on the cannula (16') for internal reinforcement.

REFERENCES:
patent: 798093 (1905-08-01), Dean
patent: 1039591 (1912-09-01), Prideaux
patent: 1718596 (1929-06-01), Smith
patent: 2198666 (1940-04-01), Gruskin
patent: 2295849 (1942-09-01), Kayden
patent: 2472116 (1949-06-01), Maynes
patent: 2660342 (1953-11-01), Ruf
patent: 2705494 (1955-04-01), Broadwin
patent: 2735427 (1956-02-01), Sullivan
patent: 2863452 (1958-12-01), Ogle, Sr.
patent: 3598108 (1971-08-01), Jamshidi et al.
patent: 3628524 (1971-12-01), Jamshidi
patent: 3819091 (1974-06-01), Hollender
patent: 3882849 (1975-05-01), Jamshidi
patent: 3938505 (1976-02-01), Jamshidi
patent: 4163446 (1979-08-01), Jamshidi
patent: 4262676 (1981-04-01), Jamshidi
patent: 4266555 (1981-05-01), Jamshidi
patent: 4314565 (1982-02-01), Lee
patent: 4356828 (1982-11-01), Jamshidi
patent: 4366822 (1983-01-01), Altshuler
patent: 4469109 (1984-09-01), Mehl

Affiliated with

Also associated with

Rating

Disposable biopsy needle unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disposable biopsy needle unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disposable biopsy needle unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1080241