US1392085A - Syringe - Google Patents

Description

sYmNeE. APPLICATIONFILED SEPT, 28, 1920.

Pandsept. 27,1921.'

y FREDERICKVW. STANTON, or CHICAGO, ILLINOIS.

SYRIN'GE.

Specification of Letters Patent.

Patented Sept. 27, 1921.

Application led September 28, 1920. Serial No. 413,276.

To all whom t may concern.'

Be it known that FREDERICK W. STANTON, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, has invented certain new and useful Improvements in Syringes, of which the following is a specification.

This invention relates to a syringe which is particularly constructed to conduct a jet or spray of water into a cavity of the body while the walls of the cavity are dilated or being dilated by means of a series of fingers which are spread and held open in varying degree by an adjustable screw member within reach of the user of the instrument. The parts are also particularly related and organized to permit convenient kassembly and disassembly, and to provide a compact and easily operated device which can be sterilized without injury or detriment.

In the drawing accompanying this application Figure l is a side elevation of my improved syringe with the fingers closed, and Fig. 2 is a sectional view and side elevation with the fingers partly opened or spread apart. Fig. 3 is a cross section on line 3 3, Fig. 1, showing the fulcrum member for the dilating fingers. Fig. 4 is a cross section on liner 4 4, Fig.- 2, showing the sliding yoke for the dilating lingers.

he syringe comprises a straight water delivery tube 2 having a curved intake portion with which a rubber hose 3 may be connected, and the discharge end of this tube is provided with a round perforated spraying tip 4. Tube 2k is also screw threaded or provided with a fixed screw-threaded pori tion 5 at its rear end which is engaged by a screw sleeve 6 or equivalent adjusting member adapted to be moved longitudinally in opposite directions'on tube 2. The front end of this screw sleeve is adapted to bear against a slidable yoke 7 having perforated ears 8 which project radially and forwardly therefrom and are spaced apart from tube 2 to permit a sliding collar 9 on the tube to contact with the lateral ofsetslO on the di-l vided ends of a series of dilating lingers 11 which are connected to ears 8 by pivot pins 12. Each linger is rounded in cross section and extends forwardly beyond the discharge end of the tube and rests loosely upon the rounded extremity of a correspondingly-` situated arm on a fulcrum member 14 stationed upon tube 2 in advance of yoke 7, and a coiled spring 15 is confined upon tube 2 between stationary member 14 and the sliding collar 9 to constantly press the said collar toward yoke 7, and thereby maintain constant contact of the collar with the offsets 10 on the several fingers and also constantly press the yoke rearwardly against the adjusting screw member 6. In so doing each finger 11 is held in yielding contact with the fulcrum member 14 and in sliding engagement therewith also, so that when the yoke is moved forward by the adjusting member 6, each finger will be caused to spread apart an equal distance from the tube inasmuch as the rear end portion 16 of each finger is bent and inclined toward the tube to promote this result. The degree of dilation given is dependent upon the extent of longitudinal movement imparted to screw sleeve 6 by the operator, and manifestly, the screw sleeve 6 locks the fingers as set regardless of the angle of inclination given. The radial arms of the fulcrum member 14 furnish open spaces or exits between them for the escape of the douching iiuid, and the sides of each channeled finger bear against the side edges of the arms of the fulcrum member and guide and hold the fingers in their movement relatively to each other and the tube.

I hat I claim is:

1. A syringe, comprising a conducting tube having a screw-threaded portion and a fulcrum member fixed thereon, a screw sleeve engaged with said screw-threaded portion, a sliding yoke in thrust engagement with said sleeve, dilating fingers engaging said fulcrum member and pivotally-connect ed with said yoke,a sliding collar engaging said pivoted fingers, and a spring bearing against said collar.

2. A syringe, comprising a conducting tube having a fixed fulcrum member and a slidable yoke mounted opposite each other on said tube, separate lingers having inclined portions engaging said fulcrum member and offset ends pivotally connected with said yoke, a spring pressed sliding collar upon said tube engaging said offsets, and a longitudinally-movable operating member for said yoke sleeved upon said tube.

3. syringe, comprising a tube having radial arms fixed thereon and a yoke with ears slidably sleeved thereon, a slidable collar and a coiled spring interposed between said arms and collar, a set of channeled arms in sliding` engagement With said radial arms having inclined portions pivotally connect-y by said radial arms, pro] said channeled arms adap eating portions on ted t0 Contact With and a screw sleeve in screw contube adapted to operate said collar, nection with said said yoke.

Signed at Cleveland, in the county of Cuyahoga and State of Ohio, this 20th day o September, 1920.

' FREDERICK W. STANTON.

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