US3820541A - Shield for hypodermic syringe - Google Patents

Shield for hypodermic syringe Download PDF

Info

Publication number
US3820541A
US3820541A US00287719A US28771972A US3820541A US 3820541 A US3820541 A US 3820541A US 00287719 A US00287719 A US 00287719A US 28771972 A US28771972 A US 28771972A US 3820541 A US3820541 A US 3820541A
Authority
US
United States
Prior art keywords
barrel
syringe
shield
bayonet
main barrel
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
US00287719A
Inventor
J Langan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US00287719A priority Critical patent/US3820541A/en
Application granted granted Critical
Publication of US3820541A publication Critical patent/US3820541A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
    • G21F5/018—Syringe shields or holders
    • 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
    • A61M5/1785—Syringes comprising radioactive shield means

Definitions

  • ABSTRACT A shield for a hypodermic syringe adapted to surround the barrel thereof to protect the user against radiation emanating from radioactive fluids contained therein.
  • the shield is lead-lined, and is provided with a bayonet fitting element engaging the manually engaged end of the syringe.
  • a coil spring cooperates with the bayonet fitting element to prevent wobbling between the barrel of the syringe and the barrel of the shield.
  • the barrel of the shield is so configured that a small end of the barrel of the syringe is uncovered to permit visual inspection of flow to and from the syringe.
  • the invention contemplates the provision of a device including a relatively rigid outer barrel which is lined with a tubular lead shield, the same being adapted to fit upon the barrel of a hypodermic syringe.
  • One end of the shield is provided with a bayonet mount which engages the laterally extending finger-engaging flanges on the plunger end of the syringe, the bayonet mounting construction forming a recess into which a coil spring is seated, the coil spring having a line of action extending past the bayonet lugs, so that the syringe barrel may be conveniently inserted and rotated to fixed position, being maintained in such position by the action of the spring urging the laterally extending projections against the bayonet lugs.
  • the barrel of the syringe is relatively loosely fitted with respect to the lead lining of the shield, so that little if any force is required to disconnect the shield from the syringe.
  • the length of the shield is such that a very small segment of the barrel is exposed to view adjacent the needle mounting means, so that the flow of fluid to and from the barrel through the needle may be readily observed.
  • FIG. 1 is an exploded view in elevation of an embodiment of the invention in conjunction with a conventional hypodermic syringe.
  • FIG. 2 is a similar side elevational view showing the barrel of the syringe in fully engaged condition with respect to the device.
  • FIG. 3 is a longitudinal central sectional view of the embodiment.
  • FIG. 4 is an end elevational view as seen from the righthand portion of FIG. 2.
  • the device generally indicated by reference character 10, comprises broadly: a main barrel element 1 1, a bayonet fitting element l2 and a coil spring member 13.
  • the main barrel element 11 is of hollow tubular construction, and includes an outer sleeve 16 of brass or other relatively rigid metallic material.
  • the sleeve 16 is bounded by a first end edge 17, a second end edge 18, an outer surface 19 and an inner surface 20.
  • Disposed within the sleeve 16 is a lead sleeve 21 of coextensive dimensions, and bounded by a first end edge 22, a second end edge 23, an outer surface 24 and an inner surface 25.
  • the bayonet fitting element 12 is fitted upon one end of the main barrel element 11, and is also preferably of tubular brass construction. It is bounded by an inner surface 28, an outer surface 29, a first end edge and a second end edge 31.
  • a pair of L-shaped indentations 32 define corresponding bayonet lugs 33 surrounding a tubular recess 34 in which the coil spring member 13 is frictionally engaged.
  • a conventional syringe 35 is shown prior to insertion within the shield.
  • the syringe 35 includes a needle element 36 detachably interconnected at one end of a barrel element 37 by means of a needle fitting 38.
  • a tubular portion 39 of the barrel element extends rightwardly to terminate in a pair of laterally extending manually engageable tabs 40 immediately adjacent the outer end of the plunger 41.
  • the syringe 35- is assembled within the device 10 by moving the same as shown in FIG. 2. to a point where the tabs or projections 40 enter the L-shaped indentations 32, following which a clockwise twist engages them beneath the lugs 33. They are retained in this position by the force exerted by the thereby compressed spring 13. It will be observed in FIG. 2 that the lower end of the barrel portion 37 projects outwardly of the main barrel element so as to be clearly visible during use.
  • the syringe may be used in well known manner, and may be conveniently removed when required by merely exerting a counterclockwise twist to the laterally extending projections on the barrel thereof. Once disconnected, the device may be autoclaved or otherwise rendered in sterile condition without damage, and the spring member 13 may be conveniently removed and replaced as required.
  • a shield for a hypodermic syringe for protecting the user against the radiation of radioactive fluids contained in the barrel of the syringe comprising: a main barrel element including an outer cylindrical sleeve of relatively rigid material and defining a cylindrical bore, a sleeve of radiation shielding material supported upon an inner surface of said outer sleeve, and substantially co-extensive therewith, a bayonet fitting element of tubular configuration, one end thereof being fitted upon an end of .said main barrel element, and forming a pair of bayonet lugs extending from a second end thereof, said bayonet fitting element defining a cylindrical recess coaxial with the principal axis of said main barrel element, and a coil spring disposed within said recess engaging said end of said main barrel element and having an axially oriented line of action cooperating with said bayonet lugs.

Abstract

A shield for a hypodermic syringe adapted to surround the barrel thereof to protect the user against radiation emanating from radioactive fluids contained therein. The shield is lead-lined, and is provided with a bayonet fitting element engaging the manually engaged end of the syringe. A coil spring cooperates with the bayonet fitting element to prevent wobbling between the barrel of the syringe and the barrel of the shield. The barrel of the shield is so configured that a small end of the barrel of the syringe is uncovered to permit visual inspection of flow to and from the syringe.

Description

Langan 1111 3,820,541 June 28, 1974 SHIELD FOR HYPODERMlC SYRINGE [76] Inventor: James Langan, 100 Glenroe Dr.,
' Baltimore, Md. 21228 [22] Filed: Sept. 11, 1972 [21] Appl. No.5 287,719
[52] US. Cl ..l 128/215, 128/2 A, 128/1.l [51] Int. Cl. A6lm 5/00, A61b 6/10 [58] Field of Search 128/215, 216, 2 R, 2 A,
l28/l.1, 1.2, 218 R, 218 A, 218 c, 218 D, 218 F, 221; 206/63.2 R, 63.2 A, 63.4, 17.5, 43, 1.5; 222/15 173 3,628,523 12/1971 Pirtle, Jr. 128/2 A FOREIGN PATENTS OR APPLICATIONS 598,205 9/1959 ltaly 206/43 Primary ExaminerRichard A. Gaudet Assistant Examiner-J. C. McGowan Attorney, Agent, or FirmCharles E, Temko [57] ABSTRACT A shield for a hypodermic syringe adapted to surround the barrel thereof to protect the user against radiation emanating from radioactive fluids contained therein. The shield is lead-lined, and is provided with a bayonet fitting element engaging the manually engaged end of the syringe. A coil spring cooperates with the bayonet fitting element to prevent wobbling between the barrel of the syringe and the barrel of the shield. The barrel of the shield is so configured that a small end of the barrel of the syringe is uncovered to permit visual inspection of flow to and from the syringe.
2 Claims, 4 Drawing Figures DISCUSSION OF THE PRIOR ART It is known in the art to surround radioactive materials with lead barriers to prevent radiation from passing therethrough. Prior art devices of this type have included tubular shields which are positionable upon the barrel of a syringe. Such devices have suffered from a variety of disadvantages, including difficulty in engaging and disengaging the same from a hypodermic syringe barrel, and in addition, they have tended to obscure visual inspection of the flow of fluid to and from the syringe barrel.
BRIEF DESCRIPTION OF TI-IE'PRESENT INVENTION Briefly stated, the invention contemplates the provision of a device including a relatively rigid outer barrel which is lined with a tubular lead shield, the same being adapted to fit upon the barrel of a hypodermic syringe. One end of the shield is provided with a bayonet mount which engages the laterally extending finger-engaging flanges on the plunger end of the syringe, the bayonet mounting construction forming a recess into which a coil spring is seated, the coil spring having a line of action extending past the bayonet lugs, so that the syringe barrel may be conveniently inserted and rotated to fixed position, being maintained in such position by the action of the spring urging the laterally extending projections against the bayonet lugs. The barrel of the syringe is relatively loosely fitted with respect to the lead lining of the shield, so that little if any force is required to disconnect the shield from the syringe. The length of the shield is such that a very small segment of the barrel is exposed to view adjacent the needle mounting means, so that the flow of fluid to and from the barrel through the needle may be readily observed.
BRIEF DESCRIPTION OF THE DRAWING In the drawing, to which reference will be made in the specification, similar reference characters have been employed to designate corresponding parts throughout the several views.
FIG. 1 is an exploded view in elevation of an embodiment of the invention in conjunction with a conventional hypodermic syringe.
FIG. 2 is a similar side elevational view showing the barrel of the syringe in fully engaged condition with respect to the device.
FIG. 3 is a longitudinal central sectional view of the embodiment.
FIG. 4 is an end elevational view as seen from the righthand portion of FIG. 2.
DETAILED DESCRIPTION OF THE DISCLOSED EMBODIMENT In accordance with the invention, the device, generally indicated by reference character 10, comprises broadly: a main barrel element 1 1, a bayonet fitting element l2 and a coil spring member 13.
The main barrel element 11 is of hollow tubular construction, and includes an outer sleeve 16 of brass or other relatively rigid metallic material. The sleeve 16 is bounded by a first end edge 17, a second end edge 18, an outer surface 19 and an inner surface 20. Disposed within the sleeve 16 is a lead sleeve 21 of coextensive dimensions, and bounded by a first end edge 22, a second end edge 23, an outer surface 24 and an inner surface 25.
The bayonet fitting element 12 is fitted upon one end of the main barrel element 11, and is also preferably of tubular brass construction. It is bounded by an inner surface 28, an outer surface 29, a first end edge and a second end edge 31. A pair of L-shaped indentations 32 define corresponding bayonet lugs 33 surrounding a tubular recess 34 in which the coil spring member 13 is frictionally engaged.
Referring to FIG. 1 in the drawing, a conventional syringe 35 is shown prior to insertion within the shield. The syringe 35 includes a needle element 36 detachably interconnected at one end of a barrel element 37 by means of a needle fitting 38. A tubular portion 39 of the barrel element extends rightwardly to terminate in a pair of laterally extending manually engageable tabs 40 immediately adjacent the outer end of the plunger 41.
The syringe 35-is assembled within the device 10 by moving the same as shown in FIG. 2. to a point where the tabs or projections 40 enter the L-shaped indentations 32, following which a clockwise twist engages them beneath the lugs 33. They are retained in this position by the force exerted by the thereby compressed spring 13. It will be observed in FIG. 2 that the lower end of the barrel portion 37 projects outwardly of the main barrel element so as to be clearly visible during use. In the condition shown in FIG. 2, the syringe may be used in well known manner, and may be conveniently removed when required by merely exerting a counterclockwise twist to the laterally extending projections on the barrel thereof. Once disconnected, the device may be autoclaved or otherwise rendered in sterile condition without damage, and the spring member 13 may be conveniently removed and replaced as required.
I wish it to be understood that I do not consider the invention limited to the precise details of structure shown and set forth in this specification, for obvious modifications will occur to those skilled in the art to which the invention pertains.
I claim:
1. A shield for a hypodermic syringe for protecting the user against the radiation of radioactive fluids contained in the barrel of the syringe comprising: a main barrel element including an outer cylindrical sleeve of relatively rigid material and defining a cylindrical bore, a sleeve of radiation shielding material supported upon an inner surface of said outer sleeve, and substantially co-extensive therewith, a bayonet fitting element of tubular configuration, one end thereof being fitted upon an end of .said main barrel element, and forming a pair of bayonet lugs extending from a second end thereof, said bayonet fitting element defining a cylindrical recess coaxial with the principal axis of said main barrel element, and a coil spring disposed within said recess engaging said end of said main barrel element and having an axially oriented line of action cooperating with said bayonet lugs.
2. Structure in accordance with claim 1 in combination with a hypodermic syringe barrel having a pair of 5

Claims (2)

1. A shield for a hypodermic syringe for protecting the user against the radiation of radioactive fluids contained in the barrel of the syringe comprising: a main barrel element including an outer cylindrical sleeve of relatively rigid material and defining a cylindrical bore, a sleeve of radiation shielding material supported upon an inner surface of said outer sleeve, and substantially co-extensive therewith, a bayonet fitting element of tubular configuration, one end thereof being fitted upon an end of said main barrel element, and forming a pair of bayonet lugs extending from a second end thereof, said bayonet fitting element defining a cylindrical recess coaxial with the principal axis of said main barrel element, and a coil spring disposed within said recess engaging said end of said main barrel element and having an axially oriented line of action cooperating with said bayonet lugs.
2. Structure in accordance with claim 1 in combination with a hypodermic syringe barrel having a pair of lAterally extending projections on one end thereof, said projections compressing said spring and engaging said lugs.
US00287719A 1972-09-11 1972-09-11 Shield for hypodermic syringe Expired - Lifetime US3820541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00287719A US3820541A (en) 1972-09-11 1972-09-11 Shield for hypodermic syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00287719A US3820541A (en) 1972-09-11 1972-09-11 Shield for hypodermic syringe

Publications (1)

Publication Number Publication Date
US3820541A true US3820541A (en) 1974-06-28

Family

ID=23104040

Family Applications (1)

Application Number Title Priority Date Filing Date
US00287719A Expired - Lifetime US3820541A (en) 1972-09-11 1972-09-11 Shield for hypodermic syringe

Country Status (1)

Country Link
US (1) US3820541A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973554A (en) * 1975-04-24 1976-08-10 The United States Of America As Represented By The Secretary Of The Department Of Health, Education And Welfare Radiation safety shield for a syringe
JPS51107086U (en) * 1975-02-25 1976-08-26
US3993063A (en) * 1975-06-16 1976-11-23 Union Carbide Corporation Protective shielding assembly for use in loading a hypodermic syringe with radioactive material
US4048997A (en) * 1976-11-01 1977-09-20 Mpl, Inc. Syringe with actinic radiation protection
DE2711946A1 (en) * 1976-03-19 1977-09-29 Medi Ray Inc INJECTION SYRINGE
US4060073A (en) * 1976-03-19 1977-11-29 Medi-Ray, Inc. Syringe shield
USD248491S (en) * 1976-04-15 1978-07-11 Reiss James M Syringe shield
US4122836A (en) * 1976-09-13 1978-10-31 Nuclear Pacific, Inc. Shielding holder for radionuclid syringes
US4185619A (en) * 1975-12-01 1980-01-29 Atomic Products Corporation Retractable shield for syringes
US4240421A (en) * 1979-06-26 1980-12-23 Carr James R Syringe shield for radioactive materials
US4401108A (en) * 1980-02-13 1983-08-30 Thomas Jefferson University Radioactive material loading, calibration and injection systems
US5000167A (en) * 1989-08-03 1991-03-19 Sherwood Medical Company Blood collection tube holder safety guard
US5013301A (en) * 1988-11-18 1991-05-07 Marotta Jr Phillip Syringe holder
FR2654346A1 (en) * 1989-11-10 1991-05-17 Laisne Maurice Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle
WO1994013347A1 (en) * 1992-12-14 1994-06-23 Mallinckrodt Medical, Inc. Prefilled delivery apparatus adapted for sterile use
EP0661074A2 (en) * 1993-12-29 1995-07-05 NIHON MEDI-PHYSICS Co., Ltd. Transport container for transporting radiation shield member
US5514071A (en) * 1994-10-06 1996-05-07 Sielaff, Jr.; Carl F. Remote injection device
US5651774A (en) * 1996-09-11 1997-07-29 William J. Taranto Hypodermic syringe with safety shield and method of using same
US5716317A (en) * 1993-12-06 1998-02-10 Nihon Medi-Physics Co., Ltd. Sheath for syringe barrel
WO1999021599A1 (en) * 1997-10-24 1999-05-06 Century Theodore J Intrapulmonary aerosolizer
US6589158B2 (en) 1999-08-06 2003-07-08 Proxima Therapeutics, Inc. Radiation shield for a syringe
US20060271014A1 (en) * 2005-05-31 2006-11-30 Mallinckrodt Inc. Heat retention device for a syringe and methods of use

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107086U (en) * 1975-02-25 1976-08-26
JPS5633529Y2 (en) * 1975-02-25 1981-08-08
FR2308382A1 (en) * 1975-04-24 1976-11-19 Us Commerce SYRINGE WITH RADIATION PROTECTION SCREEN
US3973554A (en) * 1975-04-24 1976-08-10 The United States Of America As Represented By The Secretary Of The Department Of Health, Education And Welfare Radiation safety shield for a syringe
US4092546A (en) * 1975-06-16 1978-05-30 Union Carbide Corporation Protective shielding assembly for use in loading a hypodermic syringe with radioactive material
US3993063A (en) * 1975-06-16 1976-11-23 Union Carbide Corporation Protective shielding assembly for use in loading a hypodermic syringe with radioactive material
US4185619A (en) * 1975-12-01 1980-01-29 Atomic Products Corporation Retractable shield for syringes
US4056096A (en) * 1976-03-19 1977-11-01 Medi-Ray, Inc. Shielded syringe
US4060073A (en) * 1976-03-19 1977-11-29 Medi-Ray, Inc. Syringe shield
DE2711946A1 (en) * 1976-03-19 1977-09-29 Medi Ray Inc INJECTION SYRINGE
USD248491S (en) * 1976-04-15 1978-07-11 Reiss James M Syringe shield
US4122836A (en) * 1976-09-13 1978-10-31 Nuclear Pacific, Inc. Shielding holder for radionuclid syringes
US4048997A (en) * 1976-11-01 1977-09-20 Mpl, Inc. Syringe with actinic radiation protection
US4240421A (en) * 1979-06-26 1980-12-23 Carr James R Syringe shield for radioactive materials
US4401108A (en) * 1980-02-13 1983-08-30 Thomas Jefferson University Radioactive material loading, calibration and injection systems
US5013301A (en) * 1988-11-18 1991-05-07 Marotta Jr Phillip Syringe holder
US5000167A (en) * 1989-08-03 1991-03-19 Sherwood Medical Company Blood collection tube holder safety guard
US5188119A (en) * 1989-08-03 1993-02-23 Sherwood Medical Company Blood collection tube holder safety guard
FR2654346A1 (en) * 1989-11-10 1991-05-17 Laisne Maurice Syringe which can be used only once and which has an incorporated and sliding system for protecting the needle
WO1994013347A1 (en) * 1992-12-14 1994-06-23 Mallinckrodt Medical, Inc. Prefilled delivery apparatus adapted for sterile use
US5716317A (en) * 1993-12-06 1998-02-10 Nihon Medi-Physics Co., Ltd. Sheath for syringe barrel
EP0661074A3 (en) * 1993-12-29 1997-02-26 Nihon Mediphysics Co Ltd Transport container for transporting radiation shield member.
EP0661074A2 (en) * 1993-12-29 1995-07-05 NIHON MEDI-PHYSICS Co., Ltd. Transport container for transporting radiation shield member
US5514071A (en) * 1994-10-06 1996-05-07 Sielaff, Jr.; Carl F. Remote injection device
US5651774A (en) * 1996-09-11 1997-07-29 William J. Taranto Hypodermic syringe with safety shield and method of using same
WO1999021599A1 (en) * 1997-10-24 1999-05-06 Century Theodore J Intrapulmonary aerosolizer
US6016800A (en) * 1997-10-24 2000-01-25 Century; Theodore J. Intrapulmonary aerosolizer
US6589158B2 (en) 1999-08-06 2003-07-08 Proxima Therapeutics, Inc. Radiation shield for a syringe
US20060271014A1 (en) * 2005-05-31 2006-11-30 Mallinckrodt Inc. Heat retention device for a syringe and methods of use

Similar Documents

Publication Publication Date Title
US3820541A (en) Shield for hypodermic syringe
US4060073A (en) Syringe shield
US3973554A (en) Radiation safety shield for a syringe
US3306290A (en) Automatically retractable needle syringe
US3596659A (en) A shielding holder for a syringe
US2571653A (en) Syringe
US3051166A (en) Endoscope
US5201720A (en) Syringe holding and ejecting assembly
US4040419A (en) Shielding holder for a syringe having indirect viewing means
KR102060293B1 (en) Drug delivery device
DE3372172D1 (en) Hypodermic syringe having a telescopic assembly between cartridge and medicament holder
US4994012A (en) Radiation-shielded holder for an injector
US3943926A (en) Wholly disposable dental type syringe
FR2315149A1 (en) Protective shield assembly for filling an injection syringe - with radioactive material, with radiation protection for the operator (BE151276)
BG49043A3 (en) Ampoule for automatic injector
DK27284A (en) hypodermic syringe
US3640278A (en) Hypodermic syringe device which maintains sterile condition of needle
US5104386A (en) Dental syringe apparatus
US2124293A (en) Infusion apparatus
US4072054A (en) Combined pacifying nipple and mouth thermometer device
US2607343A (en) Syringe pipette
US2672142A (en) Breech loading syringe for use with hypodermic medication cartridges
GB805184A (en) Hypodermic assembly
US2705008A (en) Medication cartridge-needle-needle guard unit for hypodermic syringe
CN214860043U (en) Anti-pricking syringe