Surgery – Instruments – Means for inserting or removing conduit within body
Patent
1995-11-13
1997-09-09
Hafer, Robert A.
Surgery
Instruments
Means for inserting or removing conduit within body
128765, 604212, A61F 1100
Patent
active
056650949
ABSTRACT:
The present invention is an apparatus and method for aspirating and collecting a middle ear fluid specimen through the ear drum of a patient. Broadly, the present invention involves using a hollow needle that is adapted for puncturing through the ear drum. The hollow needle is mountable on a bulb, and the bulb is operatively adapted to draw a specimen of middle ear fluid into the hollow needle when the needle is mounted on the bulb. Such an apparatus can be made inexpensively and disposable after each use. Mounting the hollow needle on the bulb makes the present invention self-contained by eliminating the need for an external vacuum source. One possible feature of the present invention is a stop guard that is secured to the outside of the hollow needle. The stop guard is adapted to inhibit penetration of the hollow beyond a desired depth through an ear drum. That is, once the desired depth through the ear drum is reached, the stop guard provides enough resistance to further penetration that a practitioner can tell that the desired depth has been reached. Thus, with this feature, the depth of penetration through the ear drum can be determined without having to rely solely on the skill of the practitioner performing the procedure.
REFERENCES:
patent: 69110 (1867-09-01), Mattson
patent: 2176366 (1939-10-01), Smith
patent: 2642064 (1953-04-01), Lawshe
patent: 2722257 (1955-02-01), Lockhart
patent: 3089489 (1963-05-01), Dumire
patent: 3450129 (1969-06-01), Avery et al.
patent: 3590722 (1971-07-01), Leptrone
patent: 3645268 (1972-02-01), Capote
patent: 3989045 (1976-11-01), Van Eck
patent: 4108175 (1978-08-01), Orton
patent: 4334538 (1982-06-01), Juhn
patent: 4411265 (1983-10-01), Eichenlaub
patent: 4641663 (1987-02-01), Juhn
patent: 4760847 (1988-08-01), Vaillancourt
patent: 4766908 (1988-08-01), Clement
patent: 5254120 (1993-10-01), Cinberg et al.
patent: 5476446 (1995-12-01), Arenburg
Hafer Robert A.
Yu Justine R.
LandOfFree
Apparatus for aspirating and collecting middle ear specimens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for aspirating and collecting middle ear specimens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for aspirating and collecting middle ear specimens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-66081