US3710794A - Recessed diaphragm with annular grooves for hypodermic syringes - Google Patents

Recessed diaphragm with annular grooves for hypodermic syringes Download PDF

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Publication number
US3710794A
US3710794A US00153565A US3710794DA US3710794A US 3710794 A US3710794 A US 3710794A US 00153565 A US00153565 A US 00153565A US 3710794D A US3710794D A US 3710794DA US 3710794 A US3710794 A US 3710794A
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disc
horizontal surface
flange
vial
diaphragm
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US00153565A
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W Shields
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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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • A61M5/285—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened
    • A61M5/286—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened upon internal pressure increase, e.g. pierced or burst

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  • ABSTRACT The filler opening of a hypodermic syringe vial is closed by a diaphragm clamped to the mouth of the vial by a closure cap carrying a hypodermic needle and the flexibility of the diaphragm is increased by annular grooves in the opposite horizontal surfaces of a center disc portion of the diaphragm to facilitate penetration of the diaphragm by the needle.
  • the present invention reduces the cost of manufacture by forming the diaphragm from a disc having a recess in the center of the outer horizontal surface and an annular groove in said recess, and the inner horizontal surface of the disc having an annular groove of greater diameter than the annular groove in the recess and a recess in the center of both annular grooves whereby the diaphragm is formed with a rigid peripheral flange.
  • the invention comprises a diaphragm having a rigid peripheral flange adapted to be clamped between a lip of a beaded mouth of a vial and an annular shoulder of a crown of a closure cap carrying a hypodermic needle.
  • the outer horizontal surface .of the diaphragm is provided with a recess centrally within the flange and having an annular groove concentric with the center of the recess.
  • the inner horizontal surface of the diaphragm is in the plane of the inner horizontal surface of the flange and provided with an annular groove adapted to be closed by the lip of the vial and a recess in alignment with the axis of the annular groove in the outer horizontal surface of the diaphragm whereby pressure within the vial will readily flex the diaphragm outwardly to be punctured by the hypodermic needle.
  • FIG. 1 is a longitudinal sectional view of a hypodermic syringe sealed by the diaphragm of the present invention in its normal sealing position;
  • FIG. 2 is a view similar to FIG. 1 showing the vial under internal pressure and the diaphragm flexed and punctured by the hypodermic needle;
  • FIG. 3 is a perspective view in cross-section of the diaphragm.
  • a hypodermic syringe comprising a vial a having a bottom arranged with a lateral annular flange b and closed by a piston adapted to be pushed into the vial a by a plunger 41 removably connected to the piston c by a stud e secured in the piston c and having a projecting end portion screw-threaded for removable connection with a screw-threaded recess in the plunger d, as indicated at f.
  • the vial a is filled with a liquid medicament 3 when the piston c is adjacent to the flanged end b and the plunger d is not attached to the piston c.
  • the medicament g is filled into the vial a through a filler opening I: in a neck 1 having a beaded mouth j arranged with a flat lip k.
  • the tiller opening h is closed by a diaphragm consituting the embodiment of the invention and comprising a disc of flexible material, such as rubber, having a center portion of the outer horizontal surface recessed, as at 4, to form a peripheral'flange 5 of a width less than the width of the vial lip k in the normal closing position of the diaphragm, as shown in FIG. 1.
  • the recess 4 is provided with an annular groove 6 concentric of the disc and spaced inwardly of the flange 5.
  • the opposite or inner horizontal surface of the disc extends in the horizontal plane of the inner horizontal surface of the flange 5 and is provided with a concentric annular groove 7 adjoining the flange 5 whereby said groove 7 is closed by the vial lip k in the normal closing position of the diaphragm, as shown in FIG. 1.
  • the center of the inner horizontal surface of the disc is provided with a recess 8 of a diameter less than the diameter of the circle formed by the annular recess 6.
  • the flange 5 is clamped to the lip k with the annular groove 7 closed by said lip k by a closure cap 1 having a skirt m extended longitudinally of the mouth j and crimped under said mouth j with an interior annular shoulder n abutting the outer horizontal surface of the peripheral flange 5 of the diaphragm.
  • the crown of the closure 'cap is provided with a tubular protuberance 0 having secured therein a hypodermic needle pointed at both ends.
  • the plunger d is attached to the piston c, and the air is expelled from the needle p by slightly pushing the plunger d toward the vial a. Then the outer point of the hypodermic needle p is inserted under the skin of the patient, and the piston c is pushed further into the vial a by the plunder d to a desired distance depending on the amount of medicament g to be injected into the patient whereby internal pressure is created in the vial a causing the center portion of the diaphragm to flex outwardly and be punctured by the inner point of the hypodermic needle p.
  • the annular grooves 6 and 7 will render the center portion of the diapghram more flexible by reducing the thickness of said center portion and forming hinges between the adjacent comers of the grooves 6 and 7 and the recess 8.
  • the center recesses 4 and 8 will facilitate the penetration of the diaphragm by the inner point of the hypodermic needle p.
  • the peripheral flange 5 will form a liquid tight seal between the closure cap I and the vial mouth j.
  • a hypodermic syringe comprising a vial having a filler opening arranged with a beaded mouth having a lip, a diaphragm closing said filler opening and including a peripheral flange having the inner horizontal surface engaging said lip, a center disc integral with the flange and having the outer horizontal surface extending in a plane below the outer horizontal surface of the flange and the inner horizontal surface of the disc extending in the plane of the inner horizontal surface of the flange, and annular grooves in both surfaces of the disc to increase the flexibility of said disc, a closure cap having a depending skirt crimped to the beaded mouth and a crown having an annular shoulder abutting the flange against the lip of the mouth of the vial, and a double pointed hypodermic needle carried by the crown of the closure cap.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The filler opening of a hypodermic syringe vial is closed by a diaphragm clamped to the mouth of the vial by a closure cap carrying a hypodermic needle and the flexibility of the diaphragm is increased by annular grooves in the opposite horizontal surfaces of a center disc portion of the diaphragm to facilitate penetration of the diaphragm by the needle.

Description

United States Patent 1 1 Shields [54] RECESSED DIAPHRAGM WITH ANNULAR GROOVES FOR HYPODERMIC SYRINGES Walter A. Shields, 38-09 24th St., Jamaica, NY. 11101 Filed: June 16, 1971 Appl. No.: 153,565
Inventor:
US. Cl. ..128/218 NV, 128/272, 215 40, 128/218 13 161 .5128 74826011916 Int. Cl
Field air seam;
M, 215, 216; 215/37 R, 38 R, 40, 51; 206/634 R References Cited UNITED STATES PATENTS 1/1895 Thatcher ..-.215/40 7/1908 Essmuller ..215/37 R 11/1937 Smith ..128/218 D [451 Jan. 16, 1973 2,901,139 8/1959 Isele-Aregger ..215/40 3,552,591 1/1971 Wimmer ..215/37 R FOREIGN PATENTS OR APPLICATIONS 741,856 12/1955 Great Britain ..215/40 882,600 5/1953 Germany ..128/218 NV Primary Examiner-Richard A. Gaudet Assistant Examiner-J. C. McGowan Attorney-John A. Seifert [57] ABSTRACT The filler opening of a hypodermic syringe vial is closed by a diaphragm clamped to the mouth of the vial by a closure cap carrying a hypodermic needle and the flexibility of the diaphragm is increased by annular grooves in the opposite horizontal surfaces of a center disc portion of the diaphragm to facilitate penetration of the diaphragm by the needle.
5 Claims, 3 Drawing Figures RECESSED DIAPHRAGM WITH ANNULAR GROOVES FOR HYPODERMIC SYRINGES The field of invention is medicators piston. dosing devices of the hypodermic injector type using a piton.
The prior art as illustrated by my US. Pats. No. 3,308,821 patented Mar. 14, 1967 and US. Pat. No. No. 3,387,609 patented June 1 1, 1968 disclose a molded diaphragm having a rigid peripheral flange to be clamped to the mouth of the vial and a discportion flexibly connected to the flange.
The present invention reduces the cost of manufacture by forming the diaphragm from a disc having a recess in the center of the outer horizontal surface and an annular groove in said recess, and the inner horizontal surface of the disc having an annular groove of greater diameter than the annular groove in the recess and a recess in the center of both annular grooves whereby the diaphragm is formed with a rigid peripheral flange.
The invention comprises a diaphragm having a rigid peripheral flange adapted to be clamped between a lip of a beaded mouth of a vial and an annular shoulder of a crown of a closure cap carrying a hypodermic needle. The outer horizontal surface .of the diaphragm is provided with a recess centrally within the flange and having an annular groove concentric with the center of the recess. The inner horizontal surface of the diaphragm is in the plane of the inner horizontal surface of the flange and provided with an annular groove adapted to be closed by the lip of the vial and a recess in alignment with the axis of the annular groove in the outer horizontal surface of the diaphragm whereby pressure within the vial will readily flex the diaphragm outwardly to be punctured by the hypodermic needle.
In the accompanying drawing:
FIG. 1 is a longitudinal sectional view of a hypodermic syringe sealed by the diaphragm of the present invention in its normal sealing position;
FIG. 2 is a view similar to FIG. 1 showing the vial under internal pressure and the diaphragm flexed and punctured by the hypodermic needle; and
FIG. 3 is a perspective view in cross-section of the diaphragm.
The embodiment of the invention is shown in use with a hypodermic syringe comprising a vial a having a bottom arranged with a lateral annular flange b and closed by a piston adapted to be pushed into the vial a by a plunger 41 removably connected to the piston c by a stud e secured in the piston c and having a projecting end portion screw-threaded for removable connection with a screw-threaded recess in the plunger d, as indicated at f.
The vial a is filled with a liquid medicament 3 when the piston c is adjacent to the flanged end b and the plunger d is not attached to the piston c. The medicament g is filled into the vial a through a filler opening I: in a neck 1 having a beaded mouth j arranged with a flat lip k.
After filling the vial a, the tiller opening h is closed by a diaphragm consituting the embodiment of the invention and comprising a disc of flexible material, such as rubber, having a center portion of the outer horizontal surface recessed, as at 4, to form a peripheral'flange 5 of a width less than the width of the vial lip k in the normal closing position of the diaphragm, as shown in FIG. 1. The recess 4 is provided with an annular groove 6 concentric of the disc and spaced inwardly of the flange 5.
The opposite or inner horizontal surface of the disc extends in the horizontal plane of the inner horizontal surface of the flange 5 and is provided with a concentric annular groove 7 adjoining the flange 5 whereby said groove 7 is closed by the vial lip k in the normal closing position of the diaphragm, as shown in FIG. 1. The center of the inner horizontal surface of the disc is provided with a recess 8 of a diameter less than the diameter of the circle formed by the annular recess 6.
The flange 5 is clamped to the lip k with the annular groove 7 closed by said lip k by a closure cap 1 having a skirt m extended longitudinally of the mouth j and crimped under said mouth j with an interior annular shoulder n abutting the outer horizontal surface of the peripheral flange 5 of the diaphragm. The crown of the closure 'cap is provided with a tubular protuberance 0 having secured therein a hypodermic needle pointed at both ends.
When the syringe is used, the plunger d is attached to the piston c, and the air is expelled from the needle p by slightly pushing the plunger d toward the vial a. Then the outer point of the hypodermic needle p is inserted under the skin of the patient, and the piston c is pushed further into the vial a by the plunder d to a desired distance depending on the amount of medicament g to be injected into the patient whereby internal pressure is created in the vial a causing the center portion of the diaphragm to flex outwardly and be punctured by the inner point of the hypodermic needle p. The annular grooves 6 and 7 will render the center portion of the diapghram more flexible by reducing the thickness of said center portion and forming hinges between the adjacent comers of the grooves 6 and 7 and the recess 8. The center recesses 4 and 8 will facilitate the penetration of the diaphragm by the inner point of the hypodermic needle p. The peripheral flange 5 will form a liquid tight seal between the closure cap I and the vial mouth j.
Having thus described my invention, I claim:
1. A hypodermic syringe comprising a vial having a filler opening arranged with a beaded mouth having a lip, a diaphragm closing said filler opening and including a peripheral flange having the inner horizontal surface engaging said lip, a center disc integral with the flange and having the outer horizontal surface extending in a plane below the outer horizontal surface of the flange and the inner horizontal surface of the disc extending in the plane of the inner horizontal surface of the flange, and annular grooves in both surfaces of the disc to increase the flexibility of said disc, a closure cap having a depending skirt crimped to the beaded mouth and a crown having an annular shoulder abutting the flange against the lip of the mouth of the vial, and a double pointed hypodermic needle carried by the crown of the closure cap.
2. A hypodermic syringe as claimed in claim 1, wherein the outer horizontal surface of the disc is provided with an annular groove spaced from the flange and the center of the disc.
3. A hypodermic syringe as claimed in claim 1, wherein the inner horizontal surface of the disc is provided with an annular groove adjacent the flange and closed by the lip of the mouth of the vial.
4. A hypodermic syringe as claimed in claim 1, wherein the inner horizontal surface of the disc is provided with a recess in the center of the disc.
5. A hypodermic syringe as claimed in claim 4, wherein said needle is carried in vertical alignment with 5

Claims (5)

1. A hypodermic syringe comprising a vial having a filler opening arranged with a beaded mouth having a lip, a diaphragm closing said filler opening and including a peripheral flange having the inner horizontal surface engaging said lip, a center disc integral with the flange and having the outer horizontal surface extending in a plane below the outer horizontal surface of the flange and the inner horizontal surface of the disc extending in the plane of the inner horizontal surface of the flange, and annular grooves in both surfaces of the disc to increase the flexibility of said disc, a closure cap having a depending skirt crimped to the beaded mouth and a crown having an annular shoulder abutting the flange against the lip of the mouth of the vial, and a double pointed hypodermic needle carried by the crown of the closure cap.
2. A hypodermic syringe as claimed in claim 1, wherein the outer horizontal surface of the disc is provided with an annular groove spaced from the flange and the center of the disc.
3. A hypodermic syringe as claimed in claim 1, wherein the inner horizontal surface of the disc is provided with an annular groove adjacent the flange and closed by the lip of the mouth of the vial.
4. A hypodermic syringe as claimed in claim 1, wherein the inner horizontal surface of the disc is provided with a recess in the center of the disc.
5. A hypodermic syringe as claimed in claim 4, wherein said needle is carried in vertical alignment with the recess in the center of the disc to facilitate penetration of the disc by the needle during the flexing movement of the disc toward the needle caused by internal pressure in the vial.
US00153565A 1971-06-16 1971-06-16 Recessed diaphragm with annular grooves for hypodermic syringes Expired - Lifetime US3710794A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848579A (en) * 1973-02-23 1974-11-19 Real A Villa Automatic elasto-valvular hypodermic sampling needle
US3939833A (en) * 1975-01-15 1976-02-24 Astra Pharmaceutical Products Inc. Piston construction for syringes
US4051851A (en) * 1976-03-31 1977-10-04 Tischlinger Edward A Diaphragm assembly for a medicament dispensing unit
US4051850A (en) * 1975-11-21 1977-10-04 Tischlinger Edward A Disposable medicament injector
US4072149A (en) * 1976-08-09 1978-02-07 Tischlinger Edward A Nose cap and diaphragm assembly for injector
US4291695A (en) * 1976-04-05 1981-09-29 Duphar International Research B.V. Disposable injection syringe
EP0768905A1 (en) * 1994-07-06 1997-04-23 Science Incorporated Mixing and delivery syringe assembly
US6354603B1 (en) * 1998-03-07 2002-03-12 Alain Villette Sealing device for carpule
US20060138141A1 (en) * 2004-12-17 2006-06-29 Stolzman Michael D Reduced thickness cover
US20150038914A1 (en) * 2011-04-05 2015-02-05 Covidien Lp Medical Cartridge Receiver Having Access Device
US20220016666A1 (en) * 2019-02-15 2022-01-20 Mitsubishi Heavy Industries, Ltd. Fluid material discharge apparatus

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US532498A (en) * 1895-01-15 Island
US893469A (en) * 1908-02-17 1908-07-14 Frieda Essmuller Cover.
US2098524A (en) * 1935-04-03 1937-11-09 Arthur E Smith Syringe
DE882600C (en) * 1951-12-04 1953-07-09 Alfons Kiesl Injection ampoule
GB741856A (en) * 1953-02-04 1955-12-14 Rical Sa Improvements in fluid-tight joints used in sealing bottles, jars, flasks and other containers
US2901139A (en) * 1955-01-26 1959-08-25 Union Carbide Corp Sealing disc for metallic cap closures, crown closures or the like
US3089604A (en) * 1957-04-05 1963-05-14 Golde Erich Grip-on cap seals for bottles or other containers and method of production of said cap seals
US3308821A (en) * 1964-03-23 1967-03-14 Walter A Shields Disposable hypodermic syringes
US3387609A (en) * 1966-01-19 1968-06-11 Walter A. Shields Closure cap for disposable hypodermic syringes
US3552591A (en) * 1967-11-29 1971-01-05 West Co Pierceable closure for medicine bottles

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US532498A (en) * 1895-01-15 Island
US893469A (en) * 1908-02-17 1908-07-14 Frieda Essmuller Cover.
US2098524A (en) * 1935-04-03 1937-11-09 Arthur E Smith Syringe
DE882600C (en) * 1951-12-04 1953-07-09 Alfons Kiesl Injection ampoule
GB741856A (en) * 1953-02-04 1955-12-14 Rical Sa Improvements in fluid-tight joints used in sealing bottles, jars, flasks and other containers
US2901139A (en) * 1955-01-26 1959-08-25 Union Carbide Corp Sealing disc for metallic cap closures, crown closures or the like
US3089604A (en) * 1957-04-05 1963-05-14 Golde Erich Grip-on cap seals for bottles or other containers and method of production of said cap seals
US3308821A (en) * 1964-03-23 1967-03-14 Walter A Shields Disposable hypodermic syringes
US3387609A (en) * 1966-01-19 1968-06-11 Walter A. Shields Closure cap for disposable hypodermic syringes
US3552591A (en) * 1967-11-29 1971-01-05 West Co Pierceable closure for medicine bottles

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848579A (en) * 1973-02-23 1974-11-19 Real A Villa Automatic elasto-valvular hypodermic sampling needle
US3939833A (en) * 1975-01-15 1976-02-24 Astra Pharmaceutical Products Inc. Piston construction for syringes
US4051850A (en) * 1975-11-21 1977-10-04 Tischlinger Edward A Disposable medicament injector
US4051851A (en) * 1976-03-31 1977-10-04 Tischlinger Edward A Diaphragm assembly for a medicament dispensing unit
US4291695A (en) * 1976-04-05 1981-09-29 Duphar International Research B.V. Disposable injection syringe
US4072149A (en) * 1976-08-09 1978-02-07 Tischlinger Edward A Nose cap and diaphragm assembly for injector
EP0768905A1 (en) * 1994-07-06 1997-04-23 Science Incorporated Mixing and delivery syringe assembly
EP0768905A4 (en) * 1994-07-06 1998-03-18 Science Inc Mixing and delivery syringe assembly
US6354603B1 (en) * 1998-03-07 2002-03-12 Alain Villette Sealing device for carpule
US20060138141A1 (en) * 2004-12-17 2006-06-29 Stolzman Michael D Reduced thickness cover
US20150038914A1 (en) * 2011-04-05 2015-02-05 Covidien Lp Medical Cartridge Receiver Having Access Device
US20220016666A1 (en) * 2019-02-15 2022-01-20 Mitsubishi Heavy Industries, Ltd. Fluid material discharge apparatus

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