US743743A - Hypodermic syringe. - Google Patents

Description

PATBNTED Nov. 10,1903.

J.. H. MGCULLooH. HYPODERMIG SY'RINGB. APPLIUATION FILED JUNE 13, 193,

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UNITED y, STATES' PatentedNovember l0, 1903.

lfrnrrr OFFICE.

HYPODERMIC SYRlNCE.4

SPECIFICATION forming part of Letters Patent No. 743,743, dated November 10, 1903.

Application led .Tune 13, 1903.

To a/ZZ whom it may concern:

Beit known that I, JOHN HOWARD MoCUL- LOCE, a citizen of the United States, residing, at Newville, in the county o Cumberland, State of Pennsylvania, have invented certain new and useful Improvements in Hypodermic Syringes, of which the following is a de-r scription, reference being had to the accompanying drawings and to the letters of reference marked theren.

My invention relates to an improvement in combined hypodermic syringes and serumcontainers, the object being to provide a device in which the serum or other iiuid maybe retained in a hermetically sealed package placed within the body of the syringe as a' storage receptacle and which serum -container when it is desired to use the duid may first be drained into the body of the syringe by a movement of said serum-container, the latter then being used as a piston or plunger to drive home the fluid into the patient.

The invention comprises, primarily, a hypodermic-syringe body in combination with a serum-container which is adapted to act as a plunger or piston.

Secondly, it comprises a hypodermic-syringe body, a serum-container within the same having reciprocatory movement with respect thereto and engaging the inner wall thereof, whereby when the serum-container is punctured and the said container is reciprocated it may Iirst cause the serumto dow from the container into the syringe-body and on the reverse movement to be expelled.

Thirdly, it comprises in addition to the other features a combined puucturing hollow plug and valve adapted to be connected with the container to allow of passage of the fluid through the container into the syringe-body and a hypodermic needle adapted to be secured to the syringe-body.

Finally, the invention consists in the matters hereinafter described, and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in which- Y Figure l is a sectional view of a hypodermic-syringe body and container constructed in accordance with my invention. Fig. 2 is an elevation, partly in section, of the device when the combined container and piston is seen No. 161.351. (nu man.)

being withdrawn to allow the serum to flow into the syringe-body. Fig. 3 is a similar view showing the hypoderrnic needle in posi tion and the piston and container being forced in to expel the serum. Fig. 4t is a detail view of the plug and valve, and Fig. 5 is a detail view of the hypodermic needle detached.

In the drawings the body of the syringe is represented at A and is made of glass or other suitable material, narrowed at the top to form a neck B, over which a rubber cap C is adapted to lit.' At its lower end the syringebody A is opened and adapted to receive the serum-container D, constructed of any suit able material, provided atits upper end with a contracted neck, adapted to be'closed at the mouth by a robber packing d, and lower down within the neck by a soft-metal packing b. Near the upper end said container D is provided with a washer of rubber or suitable material, as shown at c, screw-threaded thereon, this being of a size suicient to form a tight joint with the inner Wall of the syringe-body A. At its lower end the serumcontainer D projects beyond the syringebody and has itsV lower end formed to be easily taken hold of by the ngers of the opcrater, the lower end being closed by softmetal packing b'. The lower end of the syringe-body A is formed with an interior shoulder or flange d, designed to be engaged by the washer c when the serumcontainer is withdrawn to the lower end of the syringebody, so as to prevent its accidental withdrawal therefrom and to form also a closed chamber.

E represents a hollow needle-plug having a pointed solid lower end and an opening e entering the tube and having at its upper end an outwardly-opening valvef.

When it is desired to use the device, the packing b in the lower end of the serum-container is rst punctured by the needle-plug E. The cap C is then removed and the needie-plug E forced down through the rubber packing ot and soft-metal packing b until its head g tits over the mouth of the serum-container. (Replace rubber cap O.) The lower end of the container is then grasped and the container moved outwardly fromthe syringe, this action creating a vacuum in the syringebody and allowing the serum to flow out through the valve f into the body. Either before or after the plug E is inserted in the upper end of the container the needle F, which at its lower end is attached to a cap or head h, is placed over the neck of the syringebody, and when the serum has flowed from the container into the syringe-body by the withdrawal action of the container on the inward movement of the latter the serum will be forced through the hypodermic needle into the body of the patient. The part Dptherefore acts as a serum-container and piston or plunger.

Various minor modifications and changes may be made without departing from the spirit of the invention.

Having thus described myinveution, what I claim as new, and desire to secure by Letters Patent, is-

l. A hypodermicsyringe,com prising a body and a combined serum-container and serumexpelling device carried thereby with means for establishing communication between the serum -container and expelling device and the body; substantially as described.

2. Ahypodermicsyringecomprisingabody, a serum container or receptacle therein, having an annular ring thereon snugly fitting the inner wall of' the body portion, said serumcontainer being adapted to reciprocate within the syringe-body with means for establishing communication between the serum-container and expelling device andthe body; substantially as described. y l

3. Ahypodermicsyringe comprisingabody, a serum containeror receptacle therein, having an annular ringthereon snugly fitting the inner wall of the body portion, said serumcontainer being adapted to reciprocate within the syringe-body, said body having an inwardly-projecting annular portion, against which the annular ring on the container strikes in the outward reciprocation thereof with means for establishing communication between the serum-container and expelling device and the body; substantially as described.

4. Ahypodermic syringe comprising.,r a body portion having an open lower end and having means at the upper end for the attachment of a hypodermic needle, a movable serum container or receptacle having means for forming a close joint with the inner wall of the body portion, and means for establishing communication between the serum-container and the bod)7 portion, whereby in the outward movement of the serum container or receptacle, the fluid may pass into the body portion and in the inward movement thereof, the fluid will be expelled through the needle; lsubstantially as described.

5. Ahypodermicsyringe,comprisingabody portion having an open lower end and having means at the upper end for the attachment of a hypodermic needle, a movable serum container or receptacle, having means for forming a close joint with the inner wall of the body portion, a valved plug adapted to be placed within the upper end ofthe serumcontainer to establish communication between the same and the body portion, whereby in the outward movement of the serum container or receptacle, the fluid may pass into the body portion and in the inward movement thereof,the fluid will be expelled through the needle; substantially as described.

6. Ahypodermicsyringecomprisingabody portion, and a hollow movable plunger or piston therein adapted to contain the serum or other fluid with means for establishing communication between the serum-container and the body portion; substantially as described.

7. A hypodermic syringe comprising a body portion, and a hollow movable plunger or piston therein adapted to contain the serum or other fluid, and a valved opening between said hollow piston or plunger and the body portion; substantially as described.

8. A hypodermicsyringecomprisingabody portion and a hollow movable plunger or piston therein adapted to contain the serum or other fluid, an annular washer surrounding the plunger or piston, and an annular shoulder at the outer end of said body portion with means for establishing communication between the serum-container and the body portion; substantially as described.

9. Ahypodermic syringecomprisingabody portion, and a hollow movable plunger or piston therein adapted to contain the serum or other fluid, and a hollow tube or plug, with a valve at the outer end thereof opening into the body portion; substantially as described.

l0. A hypodermic syringe comprising a body portion, and a hollow movable plunger or piston therein adapted to contain the serum or other fluid and having openings at its upper end adapted to be-closed by suitable packing, a puncturing hollow valved tube adapted to be forced through the packing and establish communication betweeen the piston and the body portion, and a hypodermio needle adapted to be secured to the body portion; substantially as described.

11. A hypodermic-syringe body, a serumcontainer within the same and having reciprocating movement with respect. thereto, and engaging the inner wall thereof, whereby when the serum-container is pnnctured and reciprocated, it may first cause the serum to flow from the container into the syringebody, and on the reverse movement to be expelled from the syringe-body; substantially as described.

In testimony whereof I aii'ix my signature in presence of two witnesses.

JOHN HOWARD MCCULLOCH.`

Witnesses:

JACOB L. EMLLT, FRANK H. JENKINS.

IOC

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