US2854975A - Hypodermic syringe - Google Patents

Hypodermic syringe Download PDF

Info

Publication number
US2854975A
US2854975A US303129A US30312952A US2854975A US 2854975 A US2854975 A US 2854975A US 303129 A US303129 A US 303129A US 30312952 A US30312952 A US 30312952A US 2854975 A US2854975 A US 2854975A
Authority
US
United States
Prior art keywords
barrel
end
syringe
hub
needle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US303129A
Inventor
Milton J Cohen
Original Assignee
Miljam Instr Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miljam Instr Corp filed Critical Miljam Instr Corp
Priority to US303129A priority Critical patent/US2854975A/en
Application granted granted Critical
Publication of US2854975A publication Critical patent/US2854975A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M2005/3117Means preventing contamination of the medicament compartment of a syringe
    • A61M2005/3121Means preventing contamination of the medicament compartment of a syringe via the proximal end of a syringe, i.e. syringe end opposite to needle cannula mounting end
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/3129Syringe barrels
    • A61M5/3137Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
    • A61M2005/3139Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202Devices for protection of the needle before use, e.g. caps

Description

Oct. 7, 1958 M: J. COHEN 2,354,975

HYPODERMIC SYRINGE Filed Aug. '7, 1952 n u-- v---" juif-5T[gimp-4` 25 INVENTOR M ILTON J. COHEN ATTORNEY United States Patent HYPODERMIC SYRINGE Milton J. Cohen, Washington, D. C., assgnor to Miljam Instrument Corporation, Washington, D. C., a corporation of Delaware Application August 7, 1952, Serial No. 303,129

4 Claims. (Cl. 128-218) My invention relates to a hypodermic syringe and it is an object of the same to provide a syringe of this type which shall be simple and inexpensive, the syringe having a chamber in which a medicament can be stored for an indefinite period without danger of contamination due to leakage of air or uid into the chamber, and without danger of loss by leakage or accidental discharge of the contents. The syringe thus serves as a storage chamber but is in such condition that it can be put into use as a syringe at a moments notice, by unskilled persons as well as by personnel trained in the use of such devices. The cost is so low that the syringe can be discarded after a single use, i. e., it is in the class of so-called disposable devices for medical use.

Another object is to provide a device of the character described such as will store medicaments without chance of contact with any surface that might have a deleterious effect on the contents.

Another object is to provide improved means for ejecting the contents of the chamber through a hollow needle in a well-known manner.

Referring now to the annexed drawings, which are made a part of this application and in which similar reference characters indicate similar parts:

Fig. 1 is an elevation of the syringe of my invention, partly in section;

Fig. 2, a similar view With the parts in a different position;

Fig. 3, a similar view of -a modified form and.

Fig. 4, a detail of a part shown in Fig. 1.

In the drawings, reference character indicates a syringe barrel, preferably made of glass, and which may be a cartridge such as in common use as a container for dental liquid anesthetics, being closed at both ends by plugs of rubber or the like.

This barrel has been altered in form by forming an annular groove 11 therein to form a sort of neck near one end. A hub 12 is located in the barrel forwardly of the neck, the hub being made of rubber or of a suitable plastic, in -which a needle 13 is embedded and secured against movement. The hub has a shoulder at 14 that bears against the forward end of the barrel and a washer 15 of rubber or other material resistant to chemical action is located between a shoulder 16 at the forward end -of the neck 11 and the adjacent end of the hub, this washer preventing any contact of the contents of the chamber in the barrel with other parts at the forward end of the syringe, the needle 13 extending through the washer and tting tight therein. The forward end of the hub is reduced to provide a shoulder 17. A connector 18 is limited as to its movement in one direction lengthwise of the syringe by the shoulder 17, this connector being preferably made of metal such as can easily be bent at its rear end into the groove 11 at the neck portion of the barrel, the connector originally being cylindrical at its righthand end, as indicated in dotted lines in Fig. 1. Thus, the connector is held in the posi- ICC tion shown, whereby all the parts mentioned above are held in place. A cap 19 is mounted on the reduced end of the hub 12. This cap may be attached to the reduced end of hub 12 in any suitable manner, as by fitting closely about said end. It is so dimensioned that the end of the needle will project into the material of the cap, at least that part at 20 being made of rubber or plastic that is so soft and resilient that the needle can ex it and extend into it far enough to seal the cannula of the needle, but the remainder of the cap being relatively hard, inelastic or inflexible, thus constituting a dual-hardness cap, all more fully described in my copending applications Ser. Nos. 247,522, September 20, 1951 (now abandoned); 255,983, November 13, 1951 (now Patent No. 2,708,438); and 300,193, July 22, 1952 (now Patent No. 2,679,246), but which part 20 can spring back to place upon release of pressure by the needle. As more fully explained in my application Ser. No. 255,983, tiled November 13, 1951, the sealing of the needle prevents endwise movement of the plunger with relation to the barrel in either direction, and there is no danger of loss or contamination of the contents of the chamber when the cap 19 is in place as shown.

At the rear end of ther barrel, or at the end remote from the needle, there is a plug 21 that contines the contents of the same, and a plunger 22 is adapted to be inserted into the barrel to push the plug 21 and so force the contents of the syringe through the needle. A finger grip comprises an annular ange 23 projecting from a body 24 having a rearwardly extending part 25. The finger grip has a bore that is interiorly tapered from its forward end to its rear end, the forward end tting over the barrel and the rear end adapted to receive and guide the plunger 22. The shape 4of the bore of the linger grip helps to guide the plunger into the open end of barrel 10, the plunger pushing in the plug 21, which normally is ush with the end of the barrel. Now, when the user pushes against the end of the plunger with his thumb, while his lingers straddle the grip and the barrel, the fingers tend to clamp the grip onto the barrel and to reinforce the hold of the grip on the barrel by reason of the inner taper of the grip, instead of merely tending to slide the grip otf the barrel as usual, and produce a more effective discharge of the contained material of the syringe.

ln the modified form of Fig. 3 all parts may be as in the other form, except that hub 12 iills the space between the barrel and the connector, the washer being omitted, and the entire hub being made of rubber or other material that is resistant to chemical action.

It will be obvious to those skilled in the art that many changes can be made in the devices herein disclosed, all without departing from the spirit of the invention; and therefore l do not limit myself to what is shown in the drawings and described in the specification, but only as indicated in the appended claims.

Having thus fully described my invention, what I claim is:

1. A hypodermic syringe comprising a barrel having a circumferential groove deiining a neck portion, a plunger at one side of said neck portion, a hub at the opposite side of said neck portion, a needle permanently embedded in said hub, and a connector having retaining means at one end engaging the outer end of the hub and retaining means engaging in said groove, said retaining means holding the hub in place.

2. A device as in claim 1, wherein the second-named retaining means comprises a crimped end of the connector.

3. A device as in claim 1, including a rubber washer between the hub and the adjacent end of the barrel.

References Cited in the le of this patent FOREIGNI PATENTS France Dec. 1, 1902

US303129A 1952-08-07 1952-08-07 Hypodermic syringe Expired - Lifetime US2854975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US303129A US2854975A (en) 1952-08-07 1952-08-07 Hypodermic syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US303129A US2854975A (en) 1952-08-07 1952-08-07 Hypodermic syringe

Publications (1)

Publication Number Publication Date
US2854975A true US2854975A (en) 1958-10-07

Family

ID=23170664

Family Applications (1)

Application Number Title Priority Date Filing Date
US303129A Expired - Lifetime US2854975A (en) 1952-08-07 1952-08-07 Hypodermic syringe

Country Status (1)

Country Link
US (1) US2854975A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084688A (en) * 1959-07-15 1963-04-09 Robert K Mcconnaughey Disposable hypodermic syringe
US3096763A (en) * 1959-07-15 1963-07-09 Robert K Mcconnaughey Hypodermic syringes and needle hubs therefor
US3485239A (en) * 1967-11-02 1969-12-23 Becton Dickinson Co Self-contained sterile syringe
FR2208683A1 (en) * 1972-12-05 1974-06-28 Mpl Inc Medical syringe with plastics finger grips - fitted on polypropylene sleeve over end of glass tube
US3921633A (en) * 1974-05-06 1975-11-25 Survival Technology Finger grip device
US3978858A (en) * 1971-11-11 1976-09-07 Mpl, Inc. Glass tube and thermoplastic resin finger grip sleeve assembly
US4232669A (en) * 1979-02-15 1980-11-11 Bristol Myers Co. Protective sheath for syringe needle
US4474734A (en) * 1983-07-05 1984-10-02 Microbiological Applications, Inc. Syringe shield and closure sterilization method
US4664128A (en) * 1983-12-16 1987-05-12 Peter F. Lee, Inc Single-hand controlled aspiration device
US5115816A (en) * 1991-01-24 1992-05-26 Peter F. Lee, Inc. Single-hand controlled fine needle aspiration device
US5509903A (en) * 1992-11-19 1996-04-23 Dennis T. Grendahl Syringe having a flexible collar
US5984901A (en) * 1998-02-16 1999-11-16 Daikyo Seiko, Ltd. Adapter system for syringe pre-filled with liquid medicament and syringe pre-filled with liquid medicament
WO2000007648A1 (en) * 1998-08-06 2000-02-17 Schott Pharmaceutical Packaging, Inc. Prefilled syringe with means for preventing plunger removal
EP1062961A1 (en) * 1999-06-26 2000-12-27 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Medical syringe
US20090054849A1 (en) * 2004-05-28 2009-02-26 Cilag Ag International Injection device
US20110046559A1 (en) * 2009-08-21 2011-02-24 Becton Dickinson France S.A.S. Syringe Assembly Having a Flexible or Slidable Flange
US20150041349A1 (en) * 2010-03-12 2015-02-12 Barry Peter Liversidge Tray for Handling Syringe Barrels
US9358346B2 (en) 2005-08-30 2016-06-07 Cilag Gmbh International Needle assembly for a prefilled syringe system
US9649441B2 (en) 2005-04-06 2017-05-16 Cilag Gmbh International Injection device (bayonet cap removal)
US9675757B2 (en) 2004-05-28 2017-06-13 Cilag Gmbh International Injection device
US9675758B2 (en) 2004-05-28 2017-06-13 Cilag Gmbh International Injection device
US9682194B2 (en) 2008-06-19 2017-06-20 Cilag Gmbh International Re-useable auto-injector with filling means
US9731080B2 (en) 2005-04-06 2017-08-15 Cilag Gmbh International Injection device
US9757520B2 (en) 2006-06-01 2017-09-12 Cilag Gmbh International Injection device
US9770558B2 (en) 2005-09-27 2017-09-26 Cilag Gmbh International Auto-injection device with needle protecting cap having outer and inner sleeves

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084688A (en) * 1959-07-15 1963-04-09 Robert K Mcconnaughey Disposable hypodermic syringe
US3096763A (en) * 1959-07-15 1963-07-09 Robert K Mcconnaughey Hypodermic syringes and needle hubs therefor
US3485239A (en) * 1967-11-02 1969-12-23 Becton Dickinson Co Self-contained sterile syringe
US3978858A (en) * 1971-11-11 1976-09-07 Mpl, Inc. Glass tube and thermoplastic resin finger grip sleeve assembly
FR2208683A1 (en) * 1972-12-05 1974-06-28 Mpl Inc Medical syringe with plastics finger grips - fitted on polypropylene sleeve over end of glass tube
US3921633A (en) * 1974-05-06 1975-11-25 Survival Technology Finger grip device
US4232669A (en) * 1979-02-15 1980-11-11 Bristol Myers Co. Protective sheath for syringe needle
US4474734A (en) * 1983-07-05 1984-10-02 Microbiological Applications, Inc. Syringe shield and closure sterilization method
US4664128A (en) * 1983-12-16 1987-05-12 Peter F. Lee, Inc Single-hand controlled aspiration device
US5115816A (en) * 1991-01-24 1992-05-26 Peter F. Lee, Inc. Single-hand controlled fine needle aspiration device
US5509903A (en) * 1992-11-19 1996-04-23 Dennis T. Grendahl Syringe having a flexible collar
US5984901A (en) * 1998-02-16 1999-11-16 Daikyo Seiko, Ltd. Adapter system for syringe pre-filled with liquid medicament and syringe pre-filled with liquid medicament
WO2000007648A1 (en) * 1998-08-06 2000-02-17 Schott Pharmaceutical Packaging, Inc. Prefilled syringe with means for preventing plunger removal
EP1062961A1 (en) * 1999-06-26 2000-12-27 Arzneimittel GmbH Apotheker Vetter & Co. Ravensburg Medical syringe
US9675757B2 (en) 2004-05-28 2017-06-13 Cilag Gmbh International Injection device
US9895493B2 (en) * 2004-05-28 2018-02-20 Cilag Gmbh International Injection device
US9675758B2 (en) 2004-05-28 2017-06-13 Cilag Gmbh International Injection device
US20090054849A1 (en) * 2004-05-28 2009-02-26 Cilag Ag International Injection device
US9649441B2 (en) 2005-04-06 2017-05-16 Cilag Gmbh International Injection device (bayonet cap removal)
US9731080B2 (en) 2005-04-06 2017-08-15 Cilag Gmbh International Injection device
US9358346B2 (en) 2005-08-30 2016-06-07 Cilag Gmbh International Needle assembly for a prefilled syringe system
US9770558B2 (en) 2005-09-27 2017-09-26 Cilag Gmbh International Auto-injection device with needle protecting cap having outer and inner sleeves
US9757520B2 (en) 2006-06-01 2017-09-12 Cilag Gmbh International Injection device
US9682194B2 (en) 2008-06-19 2017-06-20 Cilag Gmbh International Re-useable auto-injector with filling means
US20110046559A1 (en) * 2009-08-21 2011-02-24 Becton Dickinson France S.A.S. Syringe Assembly Having a Flexible or Slidable Flange
US10112014B2 (en) 2009-08-21 2018-10-30 Becton Dickinson France Syringe assembly having a flexible or a slidable flange
US9783328B2 (en) * 2010-03-12 2017-10-10 Tip-Top.Com Ltd Tray for handling syringe barrels
US20150041349A1 (en) * 2010-03-12 2015-02-12 Barry Peter Liversidge Tray for Handling Syringe Barrels

Similar Documents

Publication Publication Date Title
US3378008A (en) Hypodermic syringe with vial
US3705582A (en) Breech loaded syringe and method of breech loading same
US3348546A (en) Intermixing syringe
US3557787A (en) Disposable syringe
US3144178A (en) Cartridge holder
US3253592A (en) Plastic syringe
EP1192965B1 (en) Syringe tip cap
US4772272A (en) Needle protective sleeve
US6409701B1 (en) Hypodermic syringe with selectively retractable needle
EP0956058B1 (en) Dental cartridge assembly auto-injector with protective needle cover
AU728880B2 (en) Pre-filled retractable needle injection device
US4636198A (en) Power syringe with volume reducing adapter
JP4903318B2 (en) A hypodermic syringe with a selectively retractable needle
EP1177803B1 (en) Hypodermic syringe with selectively retractable needle
US4913699A (en) Disposable needleless injection system
US5116319A (en) Safety device for an injection syringe needle
US4929241A (en) Medical needle puncture guard
CA2514269C (en) Retracting needle assembly for a syringe
EP0072057B1 (en) Automatic injection syringe
US6077253A (en) Safety needle assembly
EP0367780B1 (en) Disposable hypodermic syringe
US4026287A (en) Syringe with retractable cannula
US4941880A (en) Pre-filled ampule and non-invasive hypodermic injection device assembly
AU639955B2 (en) An administering device
US2728341A (en) Hypodermic syringe