US1718605A - Hypodermic syringe - Google Patents

Hypodermic syringe Download PDF

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US1718605A
US1718605A US250124A US25012428A US1718605A US 1718605 A US1718605 A US 1718605A US 250124 A US250124 A US 250124A US 25012428 A US25012428 A US 25012428A US 1718605 A US1718605 A US 1718605A
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Prior art keywords
syringe
cap
barrel
ampule
head
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US250124A
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Arthur E Smith
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M2005/2403—Ampoule inserted into the ampoule holder
    • A61M2005/2411—Ampoule inserted into the ampoule holder from the front
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
    • A61M2005/2477—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic comprising means to reduce play of ampoule within ampoule holder, e.g. springs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M2005/3151—Means for blocking or restricting the movement of the rod or piston by friction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit

Definitions

  • the ge/neral object A provide an improved syringe of the class described which is adapted to be loaded from the discharge end and having means provided whereby ampules of different length may be used in the syringe.
  • a further o bject of the invention is to provide a novel means for automatically and correctly positioning the ampule in the syringe.
  • ig. 1 is a central longitudinal section h my improved syrlnge showing an am u e operatively positioned therein for ma 'ng an injection.
  • Fig. 2 is an enlarged central longitudinal section of the loading and discharging end of my improved syringe.
  • Fig. 3 is a bottom plan view of the syringe barrel.
  • Fig. 4 is a top capr and ig. 5 1s an enlarged section taken on line plan view of the removable -5--5 of Fig. 1.
  • a hypodermic syringe embodying the features ofJny invention generally at 10.
  • This syringe as shown comprises a hollow body portion or barrel 12 having at one end a solid head1?) formed integral with threaded at the op site end as at ⁇ 14.
  • the threads 14..extend om the end ofthe barrel towards the head 13 for a considerable distance.
  • Oppositely disposed longitudinal cut awa portions or notches 15 are provided in e threaded area.
  • a finger grip cross ar 16 which may be held in place by rings 16 secured to the barrel 12 as by we
  • the head 13 also includes aligned opposltely disposed apertures 22 which intersect the central aperture 17 at right angles.
  • a slidable plug 23 which is adapted to be resiliently urged towards the central aperture 17 by a kcoiled 'compression spring 24.
  • the coiled springs 24 are shown as adapted to be retained in the apertures 22 by 4screw threaded plugs 25 which engage like screw threads provided in the head.
  • the adjacent faces of the slidable plugs 23 are formed concave to conform to the periphery of the plugs 23 engage t e lunger 18 and provide tension thereon whic maintains the plunger in any position to which it may be stopped or adjusted.
  • the threaded end of the syringe barrel 12 is adapted to be closed by a cap lndicated generally at 28.
  • This cap includes a portion 29 having a sleeve 30 extending therefrom' which is provided with external threaded oppositely disposed bosses 31 'which' are adapted to engage the threads 14 of the barrel 12.
  • the body portion 29 of the cap also' includes a tapered recess 33 which communicates with an oppositely disposed screw threaded tapered recess 34 in which a threaded tip 35 of a hypodermic needle hub 36 is adapted to be positioned.
  • a hollow hypodermic needle 37 is secured to the hub 36, and projects beyond each end of the hub as at 38 and 39.
  • ampule which I have shownused inl connection with my improved ,syringe is indicated generally at 40 v ⁇ 'and includes a body portion 41 provided at one end with a tapered neck 42' in which I preferably rovide a (peripheral groove 43. The end o the tapere neck to be ,closed by a resilient cap 44.
  • he cap 44 is preferabl made of a good grade of rubber and inclu es a skirt portion 45 ⁇ which is adapted to surround aportion body- 42 is left open, and is adapted l longer 18.
  • the slidable v /gible metallicA partition 47 Th also be hermetically sealed closed by a franwhich is preferably a metal ⁇ foil disk fused in place.
  • the syringe cap recess 21 in the apparent that I face of the syringe 10 the plun .31 thereof are positioned in
  • the end of the ampule'body 41 opposite the tapered neck 42 is shown as' adapted to be closed by a stopper 48 which is normally spaced adjacent the end as shown in Fig. 1, and is adapted to be moved'within the ampule body.
  • This stopper 48 is preferably made of a goodf grade of rubber and the top surface is formed conical as at 49.
  • the cap 28 When it is desired to make an injection with my improved syringe 10 the cap 28 is removed and the ampule 40 positioned in the syringe so that the straightvopen end of the ampule body is positioned adjacent the inner syringe head 13. The cap 28 is then replaced on Vthe syringe barrel. When the cap-28 is positioned on tlie'syringe barrel 12 the threaded portions 31 of the cap are positioned'in the grooves 15 in the barrel 12 and the cap moved towards the head 13.
  • the ampule cap 28 As the syringe cap 28 is thus moved the ampule cap enters the tapered recess 33 and the en d 38 of the needle 37 punctures the ampiuI-c'ap, fractures the metallic portion 47 and projects into the ampule.
  • the cap is turned to theleft until t e threaded portions the grooves 14 of the ⁇ syringe barrel 12, whereupon the cap 28 maybe readily removed, from the barrel by mo'v it away from the syringe head 13.
  • aye provided a novel form y l i of hypodermic syringe which can be economically manufactured, which is simple in con struction and highly efiicient in use.
  • An ampule including a body portion having a reduced tapered neck at one end, an metallicldiaphr fused to said neck to-close the same, a rub r member surrounding said neck and a stopper in said ampule and remote from said neck.
  • a barrel comprising two members, Jsaid members being relatively movable length f the barrel,
  • a plunger rod supportedl in said 4rear portion and movable into said barrel, means on said front portion for en ing an am'- pule, said front portion include ing means for engaging a hypodermic needle.
  • amiule including a body portion having a re uced open ended tapered neck alt one end, i risilient t eopenen o sai ta redneck theo n end of said tafpered neclglso being, closedleiy an internal rangible metallic portion and gosopper in the opposite end of said ampule 4.
  • a syringe a barrel, a closure head for one end of said barrel, said head being vformed integral with said barrel, a plunger rod movable Athrough said head and in said arrel, means in said head adapted to fricthe opposite end of said barrel,'said cap including a body portion havin a conical recess therein, a sleeve and a iypodermic needle, said sleeve having means thereon adapted to coact with for detachably secur' said cap to said barrel, said means also iillowing use of ampules of different length in said syringe, an ainpule in said syringe, said ampule includi l a body portion having a reduced open end taipered neck at one end, a resilient ecatedtoclosetheo nendofsaidta n ,theo endo saidtaperedneckalso being clo by an internal frangible metallic portion, a

Description

june 25, 1929. A E, SMWH 1,718,605
HYPODERMI C SYRINGE Filed Jan. 28, 1928 lle f 38 47 li .'/4 54' am? 33 3# 35 a@ 37 36 f 37 INVENTOR. 59 Y ARTHUR E. sM/TH ATTORNEY.
' '18*is positioned. The
Patented June 25, 1929...v
UNI-TED STATES P xrlarrr omer..
ARTHUR-E. SMITH, F LOS NGELES, CALIFORNIA.
HYPODEBMIC SYRIITGE.
Application' led January 28, A19028. i Serial No. 250,124.
'This invention relates to improvements in hypodermic syringes'. The ge/neral object Aprovide an improved syringe of the class described which is adapted to be loaded from the discharge end and having means provided whereby ampules of different length may be used in the syringe.
A further o bject of the invention is to provide a novel means for automatically and correctly positioning the ampule in the syringe. j
Other objects of this invention will be apparent from the following description taken in connection with the accompanying drawing; wherein:
ig. 1 is a central longitudinal section h my improved syrlnge showing an am u e operatively positioned therein for ma 'ng an injection.
Fig. 2 is an enlarged central longitudinal section of the loading and discharging end of my improved syringe.
Fig. 3 is a bottom plan view of the syringe barrel.
Fig. 4 is a top capr and ig. 5 1s an enlarged section taken on line plan view of the removable -5--5 of Fig. 1.
Referring to the drawings by reference characters I have indicated a hypodermic syringe embodying the features ofJny invention generally at 10. This syringe as shown comprises a hollow body portion or barrel 12 having at one end a solid head1?) formed integral with threaded at the op site end as at `14. The threads 14..extend om the end ofthe barrel towards the head 13 for a considerable distance. Oppositely disposed longitudinal cut awa portions or notches 15 are provided in e threaded area.
The barrel of the syringe -alsencluges adjacent the head 13, a finger grip cross ar 16 which may be held in place by rings 16 secured to the barrel 12 as by we A central longitudinal aperture 17 1s provided in the head 13 in which a plunger rod lunger includes at one end an enlargedthumb piece 19 held in place by threads and' at the op osito end an enlarged head 20, in the under ace of which the barrel and being internally J various lengths may is provided a recess 21 shown as of al conical shape.
0 The head 13 also includes aligned opposltely disposed apertures 22 which intersect the central aperture 17 at right angles. Within each of the apertures 22 Ivposition a slidable plug 23 which is adapted to be resiliently urged towards the central aperture 17 by a kcoiled 'compression spring 24. The coiled springs 24 are shown as adapted to be retained in the apertures 22 by 4screw threaded plugs 25 which engage like screw threads provided in the head.
The adjacent faces of the slidable plugs 23 are formed concave to conform to the periphery of the plugs 23 engage t e lunger 18 and provide tension thereon whic maintains the plunger in any position to which it may be stopped or adjusted.
4 The threaded end of the syringe barrel 12 is adapted to be closed by a cap lndicated generally at 28. This cap includes a portion 29 having a sleeve 30 extending therefrom' which is provided with external threaded oppositely disposed bosses 31 'which' are adapted to engage the threads 14 of the barrel 12.
Secured to the body portion 29 and sur- -rounding the sleeve I provide another sleeve 32. The body portion 29 of the cap also' includes a tapered recess 33 which communicates with an oppositely disposed screw threaded tapered recess 34 in which a threaded tip 35 of a hypodermic needle hub 36 is adapted to be positioned.
As shown, a hollow hypodermic needle 37 is secured to the hub 36, and projects beyond each end of the hub as at 38 and 39.
By constructing the syringe cap 28 as described it will be ap arent that ampules of usedinm improved syringe, since to accommodate t e ampules of various lengths it is only necessary to adjust the sleeve 30.
The ampulewhich I have shownused inl connection with my improved ,syringe is indicated generally at 40 v`'and includes a body portion 41 provided at one end with a tapered neck 42' in which I preferably rovide a (peripheral groove 43. The end o the tapere neck to be ,closed by a resilient cap 44.
'I he cap 44 is preferabl made of a good grade of rubber and inclu es a skirt portion 45`which is adapted to surround aportion body- 42 is left open, and is adapted l longer 18. The slidable v /gible metallicA partition 47 Th also be hermetically sealed closed by a franwhich is preferably a metal `foil disk fused in place.
' the syringe cap recess 21 in the apparent that I face of the syringe 10 the plun .31 thereof are positioned in The end of the ampule'body 41 opposite the tapered neck 42 is shown as' adapted to be closed by a stopper 48 which is normally spaced adjacent the end as shown in Fig. 1, and is adapted to be moved'within the ampule body. This stopper 48 is preferably made of a goodf grade of rubber and the top surface is formed conical as at 49.
When it is desired to make an injection with my improved syringe 10 the cap 28 is removed and the ampule 40 positioned in the syringe so that the straightvopen end of the ampule body is positioned adjacent the inner syringe head 13. The cap 28 is then replaced on Vthe syringe barrel. When the cap-28 is positioned on tlie'syringe barrel 12 the threaded portions 31 of the cap are positioned'in the grooves 15 in the barrel 12 and the cap moved towards the head 13.
As the syringe cap 28 is thus moved the ampule cap enters the tapered recess 33 and the en d 38 of the needle 37 punctures the ampiuI-c'ap, fractures the metallic portion 47 and projects into the ampule. After 28 has been moved as far as possible towards the about a half- 'of a turnfto the right, whereupon thethreaded portions 31 of the cap engage the threaded portion 14'of the syringe barrel 12 thus securing the syringe cap 28 to-the barrel 12 and at the same time forcing the ampule cap 44 into fluid -tight engagement with the side walls of the conical res the syrin cap 28 is being positioned on the syrin e arrel the conical rtion 49 of the ampu e stopper 48 enters t e conical lunger head 20 and automaticallycorrect y positions the ampule in the s'yr barrel.
To m e an injection with my improved r 18 is moved towards t e syringe cap 28 ereby moving the stopper and causing it to act as a piston to expel the contents of the ampule `the hypodermic needle .37.
To remove the syrin cap 28 the cap is turned to theleft until t e threaded portions the grooves 14 of the` syringe barrel 12, whereupon the cap 28 maybe readily removed, from the barrel by mo'v it away from the syringe head 13.
From j e fore ing demption it will be internal rangible 'to alter the effective `said barrel having a front and a rear porhead 13 it' is turned b ltionally engage said into and through hypodermic signature.
aye provided a novel form y l i of hypodermic syringe which can be economically manufactured, which is simple in con struction and highly efiicient in use.
Having thus described my invention, I claim:
1.`An ampule including a body portion having a reduced tapered neck at one end, an metallicldiaphr fused to said neck to-close the same, a rub r member surrounding said neck and a stopper in said ampule and remote from said neck.
2. In a syringe device adapted to receive anv ampule, a barrel comprising two members, Jsaid members being relatively movable length f the barrel,
tion, a plunger rod supportedl in said 4rear portion and movable into said barrel, means on said front portion for en ing an am'- pule, said front portion inclu ing means for engaging a hypodermic needle.
amiule including a body portion having a re uced open ended tapered neck alt one end, i risilient t eopenen o sai ta redneck theo n end of said tafpered neclglso being, closedleiy an internal rangible metallic portion and gosopper in the opposite end of said ampule 4. `In a syringe, a barrel, a closure head for one end of said barrel, said head being vformed integral with said barrel, a plunger rod movable Athrough said head and in said arrel, means in said head adapted to fricthe opposite end of said barrel,'said cap including a body portion havin a conical recess therein, a sleeve and a iypodermic needle, said sleeve having means thereon adapted to coact with for detachably secur' said cap to said barrel, said means also iillowing use of ampules of different length in said syringe, an ainpule in said syringe, said ampule includi l a body portion having a reduced open end taipered neck at one end, a resilient ecatedtoclosetheo nendofsaidta n ,theo endo saidtaperedneckalso being clo by an internal frangible metallic portion, a sto per adjacent the opposite end of said amp e body, said'stopper includin means adapted to coact with, means on sai plunger rod head to automatically correctly position' said am' ule in said syringe, -said needl adapted when said cap is operatively positioned on said barrel to puncture said .ampule cap, fracture said metallic partition and enter said ampule.
Inl testimony whereof, I hereunto aflix my cap adapted to close means on said barrel plunger rod, a cap for lli
US250124A 1928-01-28 1928-01-28 Hypodermic syringe Expired - Lifetime US1718605A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538390A (en) * 1948-01-05 1951-01-16 Arthur E Smith Syringe
US3080866A (en) * 1961-07-07 1963-03-12 Friedman Benjamin Hypodermic needle
US3141583A (en) * 1962-03-23 1964-07-21 William L Brickson Injection gun
US3332419A (en) * 1963-11-14 1967-07-25 Owens Illinois Inc Hypodermic injection device
US3930492A (en) * 1974-08-21 1976-01-06 Jintan Terumo Company, Ltd. Air-noncontact type blood sampling assembly
US11419985B2 (en) * 2016-09-12 2022-08-23 Min Wei Medication injection device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538390A (en) * 1948-01-05 1951-01-16 Arthur E Smith Syringe
US3080866A (en) * 1961-07-07 1963-03-12 Friedman Benjamin Hypodermic needle
US3141583A (en) * 1962-03-23 1964-07-21 William L Brickson Injection gun
US3332419A (en) * 1963-11-14 1967-07-25 Owens Illinois Inc Hypodermic injection device
US3930492A (en) * 1974-08-21 1976-01-06 Jintan Terumo Company, Ltd. Air-noncontact type blood sampling assembly
US11419985B2 (en) * 2016-09-12 2022-08-23 Min Wei Medication injection device

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