US933490A - Syringe. - Google Patents

Description

C. REMI-IOP.

SYRINGE.

APPLIoATIoN FILED MAR. 18, 190s.

Patented Sept. 7, 1909.

@ummm ANDREW. s. GRAHAM cm PHuTo-umounAPHzRs. wAsNmurou. n. c.

CHARLES` REMHOF, OE BROOKLYN, NEW YORK.

sYnINGE. l

Specication of Letters Patent.

Patented sept. a', 1909.

Application led March 18, 1908. Serial No. 421,777.

.To all whom t may concern:

;Be it known that I, CHARLES REMHoF, a citizen of the United States, and a resident of Brooklyn, Kings county, New York, have invented certain Improvements yin Syringes,

, of which the following is a specification.

This invention relates to certain improvements in syringes, and more'particularly to that class of such devices which are especially designed and adapted for vaginal and other similar uses, and the object of the inf vention is to provide a device of this general character of a simple and comparatively inexpensive nature, and of a strong and com-` pact construction, permitting the improved syringe to be readily packed within a small compass so as to be capable of being conveniently put out of the way whennot re quired for use. v

The invention consists in certain novel features of the construction, and combinations and arrangements of the 'several parts of the improved syringe, whereby certain important advantages are attained, and the device is rendered simpler, cheaperl and otherwise better adapted and more conL venient for use, all as will be hereinafter fully set forth. The novel features of the invention will be carefully 'defined in the claims. In the accompanying drawings, which serve to illustrate my invention-#Figure 1 is a perspective view showing a syringe embodying my improvements; Fig. 2 is. a ysectional view taken axially through fthe syringe, the exible tubing and discharge nozzle being broken away for lack'of space; Fig. 3 is a sectional view, similar to Fig.2,v but showing the improved syringe compacted, the flexible,v tubing and discharge nozzle being disconnected from the bodyv portion of the device and packed within the barrel or cylinder thereof; Fig. is another sectional view, similar to Fig. 2, but showing the body portion of the improved syringe compressed as it appears when operated to discharge the contained fluid from its barrel or cylinder, and Fig. 5 is a sectional view taken transversely through the ycylinder or barrel of the syringe and illustrating a modi-4 fied form ofthe device wherein said cylinder or barrel is madeflattened in cross section.

As shown in Figs. 1 to 4, the improved syringe is constructed with a cylindrical body portion formed from a lower .or base member l, and an upper or actuatingmem- Vdrical body portion.

ber 2, said members l and 2 being made from thin metal tubing and having their interiors adapted for communication to produce a liquid chamber within said cylin- The lower or base member 1 is formed from 'tubing with an exterior diameter as nearly like the interior diameter of the upper or actuating member 2 as isl practicable, and the side walls of said lower or base member l, are adapted to fit snugly within and slide telescopically flush upon and along the side walls of the upper or actuating member 2 in order to permit the body portion or barrel formed from said members to be longitudinally'compressed or extended in the operation of the syringe for discharging liquid from or drawing the same into the liquid chamber produced within said body portion or barrel, as will be hereinafter explained. This construction of themembers land 2 insures accurate and flush contact of the vside walls of the members, when the body portion or barrel is compressed, as shown in Fig. 4L, throughout substantially the whole extent to which said Vmembers are overlapped, and thereby permits of dispensing altogether with the employment of extraneous guiding means, and affords the maximum 4pumping capacity consistent with the length of the body portion or barrel when compressed. The structure is, moreover such that the upper or actuating member 2 affords a cap or closure for the upper open end of the lower or base member l, and thereby affords a material simplification of the device.

Y 3 and 4c represent end members or valve casings which are secured upon the opposite open ends of the respective lower and upper members l and 2, said end members 3 and 4 being herein shown provided with screw connections with said tubular members l and 2, although it willbe evident that. the present invention is not limited to the employment of said screw connections and that any other preferred attachment may be substituted therefor. The upper end member 4, however, is preferably adapted for ready detachment from vthe upper tubularmember 2, Vin order that access may be afforded to the interior ofthe barrel or body portion for purposes to be hereinafter explained.

' At theoverlapping ends of the telescoping tubular members l and 2 of the device I provideA a packing to prevent excessive leakage of the fluid between the parts, and I have herein shown this packing in the form of an annular band or gasket 6 of rubber or other suitable material which is held in place in a seat or channel 5 extended around the upper end of the lower tubular member 1, said channel being formed by swaging the material from which said member is formed inwardly in a manner which will be readily understood by inspection of the drawings.

The lower end member or casing 3 1s formed with a passage 7 extended centrally through it, the lower end of said. passage being expanded, and the wall of said end mem.- ber or casing being notched at suitable intervals as shown at 10, to afford access to the said expanded lower end of passage 7, when the syringe is rested upon the bottom of a vessel containing a supply of liquid, as shown in Fig. 4, so that the liquid contained in said vessel may enter said expanded lower -end of passage 7, and the upper end of said passage 7, where it communicates with the interior or bore of the cylindrical body portion of the device is provided with a valve seat adapted to be engaged by a valve S provided with a check 9 for limiting its movement and so arranged as to permit free entry of liquid into the bore of the body portion through said passage 7, while being adapted to effectively prevent, by its engagement with said valve seat, the outflow of liquid from the body portion through said passage.

The detachable upper end member or casing 4 is provided with a nipple 11 extended from it and adaptedfor detachable connection with a flexible tube 15 of rubber or the like, the extremity of which is likewise adapted for detachable connection with a discharge nozzleil in a well known way, and a passage is provided within said nipple 11, with its lower end communicating with the interior or bore of the body portion of the device for the discharge of liquid therefrom to the flexible tube 15, which passage has a valve seat adapted to be engaged by a valve 12, the movement of which is also limited by a check 14 in a well known way. This valve 12 is adapted, by engagement with its seat, to prevent the backflow of liquid or air from the tube 15 into the interior or bore of the cylindrical body portion of the syringe, but is adapted to permit the free flow of the liquid from said body portion through said tube 15 in order' that the same may be discharged at the nozzle 16. The valved inlet and valved outlet of the body portion being, by this construction, located adjacent to the opposite ends of the device, it will be evident that occlusion of said outlet. and inlet during the telescopic movement of the members from which the body lportion is produced is effectively avoided and a maximum discharge capacity is afforded.

At the lower part of the cylindrical body portion of the syringe is arranged an annuA lar flange 17, projecting around the lower end of the lower tubular member 1, and herein shown as formed integrally with the lower end of said member 1 by pressing the material from which said member is formed outwardly, and this flange forms an abutment or shoulder against which is rested the lower end of a spiral spring 18, which encircles said lower tubular member above said shoulder or abutment and has its upper end engaged with a similar abutment or shoulder 19 produced at the lower end of the upper tubular member 2 of the device, and which is formed, as herein shown, of an integral annular flange bent or swaged outwardly around the said lower end of the ineinbei 2. By this arrangement of the parts it will be seen that the tension of the spring 18 is normally exerted to hold the two tubular meinbers 1 and 2 of the body portion slid cndwise one upon the other in such a way as to extend or elongate said body portion as shown in Fics. 1, 2 and 3, the liquid chamber within said body portion being thus given a greater capacity than that of' either of its members separately considered, and said spring being coiled upon the exterior of the device is readily accessible for purposes of repair, and is not liable to be corroded by the liquid in connection with which the improved syringe is used, as would be the case were said spring arranged within the liquid c iamber. In order to prevent separation of said tubular members 1 and .2 from each other I provide a securing device connected at one end with one of said members and having its opposite end adapted for sliding engagement with the other member in such manner as to effectively prevent dislocation of the parts while permitting the sliding movement of the members relative to each other which is necessary for the operation of the improved syringe. This securing dcvice, as herein illustrated, is in the form of a narrow strip 20 of metal, extended parallel with and closely adjacent to the lower tubular member l, and preferably inclosed within the spiral spring 18 so as to be protected thereby, the lower extremity of said strip 20 being connected with said lower tubular member 1 near the lower end of the latter, while the upper end of said strip is passed through vand adapted for sliding engagement in an aperture 21 produced in the annular flange 19 at the lower end of' the upper tubular member 2, and has a bent extremity 22 which forms an enlargement adapted for engagement against the upper surface of said Hange 19 in such a manner as to limit the longitudinal extension of the body portion of the device and prevent separation of the members from which the same is formed.

In the use of the device, the flexible tube 15 and nozzle 1G being attached to the body repeating this operation until the body portion of the syringe, the lower end of said body portion, comprising the lower end member or casing 3, is di ped within the liquid contained in a suitab e vessel, where? permitting said spring to react and lift said upper member, a portion of the liquid contained in said vessel will be drawn through the ports l0 and passage 7 into said body portion to replace said discharged air. By portion shall have become filled with the liquid it is evident that such liquid will thereafterbe discharged from the body portion through the flexible tube and nozzle 16 as in the well known bulb syringe.

When the device is not required for use, the upper end member or casing l may be detached to aiiord access to the interior or bore of the body portion, which thereupon serves as a receptacle for the ilexible tube and nozzle 16 upon the disconnection of these parts at the nipple ll, whereby as indicated in Fig. 3, the character of the device is to a great extent disguised, while at the same time `the tubing and nozzle are ready at hand for use.

From the above description it will be seen that the improved syringe constructed according to my invention is of an extremely simple and comparatively inexpensive construction and is especially well adapted for use by reason of its compact and durable construction7 and it will also be obvious from the above descriptionjthat the device `is susceptible of some modification without material departure from the principles and spirit of the invention and for this reason I do not desire to be understood as limiting myself to the precise form and arrangement of the several parts herein set forth in carry-y ing out my invention in practice. Nor do I desire to be understood as limiting myself tothe employment of any special material for the construction of the improved syringe, since it is evident that the invention is not limited in this respect. Nor is the cylindrical forni of the body portion at all essential to the invention since, when desirable, the telescoping members l and 2 maybe made flattened as shown in Fig. 5, or may have other cross sectional forms with good results.V l

Having thus described my invention, what I claim and desire to secure by Letters Patent 'is l. A syringe having a body portion comprisingtwo tubular members arranged for telescopic sliding movement one within the other, a securing device formed of a strip having one end attached to one of the tubular members, and having its opposite end extended lengthwise along the body portic-n and engaged for sliding movement in an aperture of the other tubular member to limit the telescopic sliding movement thereof, and a spring coiled around the body portion outside of said strip and having en-. gagement at its opposite ends with the respective tubular members to hold the same normally in one position while permitting telescopic movement of such members against the tension of said spring, said body portion having an inlet and an outlet, and valves controlling the inlet and outlet of the body portion.

2. A syringe having a body portion provided with two members of substantially like diameters having adjacent open ends fitted to slide telescopically one within the other, the interiors of said members being in communication and forming an unobstructed liquid chamber extended from end to end of the body portion, valves controlling the admission and discharge of liquid to said chamber, and closures for the opposite ends of the body portion, one of said closures being removable to afordaccess to the liquid chamber for the insertion of nozzles or the like therein. y

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

CHARLES REMI'IOF. Witnesses:

HENRY DIs'rLER,

WILLIAM A. VAN INWEGEN.

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