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US 3,937,370 AGranted
Controlled depth aspiration cannula
AssigneeBaxter Laboratories, Inc.
InventorMichael E. Witty
Life of this patent
Estimating the term…
Abstract
A controlled depth fluid aspiration cannula is disclosed comprising an elongated tubular member terminating at the distal end with a wall and terminating at the proximal end with attachment means to provide a sealing fitment for a flexible conduit. Radially disposed orifices are positioned near the distal end, and a radially extending flange is positioned between the ends of the tubular member to provide controlled depth aspiration of fluid.
Claims3
An aspiration cannula for aspirating fluids from an open mouthed elongated receptacle comprising:
- a. an elongated tubular member terminating at one end portion with a wall;
- b. said tubular member being constructed of a first part and a second part;
- c. said first part including a radially extending flange for controlled depth aspiration of said receptacle and a centrally positioned socket axially disposed therein;
- d. said second part having said end wall portion and being adapted and constructed to have a portion thereof located in said socket remote from said end wall portion;
- e. said tubular member having a plurality of orifices circumferentially positioned substantially at the end portion of the tubular member having said end wall;
- f. said first part terminating at the end remote from said radially extending flange with attachment means adapted and constructed to provide a sealing fitment for a flexible conduit;
- g. means for preventing said radially extending flange from completely covering the mouth of said open mouthed elongated receptacle.
4 more elements
Dependencies are inferred from the claim text.