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Hypodermic syringe with hood for guarding and concealing the needle

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US2925083A
US2925083A US70571157A US2925083A US 2925083 A US2925083 A US 2925083A US 70571157 A US70571157 A US 70571157A US 2925083 A US2925083 A US 2925083A
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hood
needle
syringe
body
hypodermic
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Clarence D Craig
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Clarence D Craig
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    • 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
    • A61M5/3287Accessories for bringing the needle into the body; Automatic needle insertion
    • 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel

Description

Feb. 16, 1960 c. D. CRAIG HYPODERMIC SYRINGE WITH Hoon FOR GUARDING AND CONCEALING THE NEEDLE Filed Dec. 27, 1957 p4 w $9.16. .HF .bv

United States Patent() IHYPODERMIC SYRINGE `W1TH HOOD FOR .GUARDING AND CONCEALING THE NEEDLE `Clarence D. Craig, Arlington Heights, Ill.

Application December 27, 1957, Serial No. 705,711

3 Claims. (Cl. 12S- 218) This invention relates to hypodermic syringes or the like, of the type employed by dentists and physieiansfor :injectingi'zdrugs or other liuids into body tissues.

:One object of thepresent invention is to providea new :aridsimproved lhypoderimc syringe having means, such as ahood or the like, for concealing and guarding the hypodermicneedleuntil the syringe is actually in position for hypodermic syringe which is convenient for dental use, tsollthat :the syringe .may be inserted into `the patients zmouthwith `the needle concealedtand guarded, and so that ethe .needle may then be readily extended, out of the sight of the patient.

It is a further. objectwto provide `a-new and improved -hodattachmenuadapted `to Vbe mounted on existing or @standard .hypodermic syringes, so that theV hypodermic sneedle maybe concealed and guarded until in position for actual use.

Another object is `to provide new and `improved hood `arrangements of the `foregoing character which are effec- :.tive.' and `.highly serviceable yet `are easy to manufacture A.andilowfin cost.

Further objects and advantages of the present invention uwill l.appear from `the following description, taken with theiaccompanying drawings in which:

iEig. listan elevational view of an hypodermic syringe equipped with a hood arrangement vto bedescribed as an illustrative embodiment of the present invention, the syringeifbeing shown with the hood extended to conceal and guard the hypodermic needle.

Eig. 2 isa view similar to Fig. 1,.but withthe hood retracted to expose the needle.

Figi?, is afragmental enlarged elevational viewtshowingthe hood arrangement'in central longitudinal section, the hood being shown in extended position.

`:1`1,ig.\4 is `a view similar to Fig..:3,uwith thehood retracted to expose the nedle.

It will be seen that the drawings illustrate a hypodermic syringe 10, having a body 12, with a hypodermic needle 14 at its front end. These elements may be of any known or suitable construction. However, the illustrated syringe has a novel hood portion 16, whereby the needle 14 may be concealed and guarded. lt will be apparent from the drawings that the hood 16 and the needle 14 are relatively movable so that the needle 14 may be concealed, as in Fig. 1 and Fig. 3, or extended, as shown in Figs. 2 and 4.

The needle concealing and guarding arrangement of the present invention might well be built into a syringe as originally manufactured. However, the drawings illustrate the hood 16 in the form of an attachment which may readily be mounted on the syringe 10, which may be of a Patented Feb. 111e, 19Go ICE 2 standard or existing type. No 4modification of the syringe A10`=is required tov mount the hood attachment thereon.

The `syringe'10 may be constructed in various ways. As illustrated, the body 12 is generally cylindrical or tubular `and is ofthe type adapted to receive a transparent tubular.

`cartridge I8, containing drugs or the like. `The tubular bodyi12 is formed `with longitudinal openings or slots 20 on its opposite sides, so that the cartridge may readily be seen. i

The illustrated syringe `10 has a plunger 22, adapted to be pushed into the cartridge 18, so as to force the con- `tentsthereof outwardly through the hypodermic needle F14. A tingeror hand piece 24 is mounted on the rear -endof 'the plunger 2,2, for applyingtpressure thereto.

"As illustrated, the body 12 is provided with a `closure :membertatits rear end. `A thumbfscrew 23 normally retains the closure member 26 in place. By loosening ,the thumb-screw 28, and withdrawing the plunger 22, the :closure member26 may beswung aside for removal and `insertion of drug cartridges, such as the cartridge 1S. It iwill be-seen that two oppositely extending linger grips30 larefprovided `on the member 26.

ments'might lne-employed, but this arrangement is highly `advantageousabecause it requires no modification of the basic `syringe 10.

`The illustrated -hood 16 has a generally cylindrical main or rear portion 40, with an internal cylindrical surface142, adapted to slide along the mounting ring 36. The hood portion 40 is telescopically--movable over the body .i12 of the syringe.

Atits1front end the illustrated hood 16 has a tapering znose. portion 44, with a small axial opening 46- in its front end. It will be seen that the opening 46 is adapted .toreceive the :needle .14 with a slip fit, so as `to guide the 'needle as thehood is slid therealong between the extended Aaridi-retracted.positions of Figs. 3 and 4. `In Fig. 3, the needle 14 is shown fully concealed,`withtthe extreme front end of `:theneedle disposed within the opening 46. In rIifgal,.thexneedlez 14 is `fully extended fthrough Vthe openfingfl46. Theretracting movementuofthe-hood 16 may be Elimitedfby the engagement `ofthenose Aportion 44 .withthe nut 34.

As shown, the nose portion 44 is formed asa separate ...elementwhichiis .threadediinto'the'frontend of the cylin- .dricalthOOdaportiOni/ll). This arrangement greatly/facilitates the mounting of the hood attachment on the syringe 10, and the removal of the hood attachment therefrom.

The relatively movable needle and hood portion enable the needle to be concealed and guarded until the syringe is in position for actual use. Thus, for example, the syringe may be inserted by a dentist into the patients mouth with the needle concealed, to avoid unnecessarily frightening the patient. When the needle is out of the sight of the patient, the hood may be retracted to expose the needle for use.

In the illustrated construction, the retraction of the hood is facilitated by providing a spring 48, which biases the hood rearwardly and thus is adapted to move the hood to its retracted position. The illustrated spring 48 is of the coiled compression type and is positioned within the cylindrical hood portion 40, between the mounting ring 36 and a shoulder 50, formed within the 56 is provided at the rear end of the leaf spring 54 to mount the spring on the cylindrical body wall 12, at

Vthe rear end of one of the slots 20. The front end of in the form of a flexible resilient leaf or strip. A clip i the spring 54 normally springs outwardly and is adapted to engage a rearwardly facing shoulder 58 formed in the hood 16, near the rear end thereof. f

The catch 54 is released simply by pressing it inwardly toward the body y12, to disengage the catch from the shoulder S8. The spring 48 then pushes the hood 16 rearwardly to expose the needle 14. The hood 16 may be extended manually until the catch 54 again springs outwardly behind the shoulder 58.

Thus, the dentist or physician may readily retract the the hood 16, after moving the syringe to its position of use with the needle 14 concealed by the hood. Even in cramped quarters, such as in the mouth of a dental patient, it is a simple matter to press the catch spring 54 to release the hood 16, for rearward movement by the resilient action of the spring 4S.

It has been found that patients are often aiectedto a greater extent by the apprehension or fear at seeing a hypodermic needle than they are by the slight pain involved in inserting the needle into body tissue. This is particularly true of children. Thus, it is very advantageous to conceal and guard the needle until theV syringe is moved into a position in which the needle is out of the sight of the patient.

It will be apparent that the illustrated hood arrangement is exceedingly easy to use. It may readily be mounted ou a standard or existing syringe. At the same time the invention might readily be applied to a syringe as originally manufactured, so as to provide for a needle and a hood portion adapted for relative movement to conceal and expose the needle.

The present hood attachment is easy to assemble and disassemble and may readily be cleaned and sterilized. It may be made of any suitable materials, such as metal or plastic.

With all of these advantages, the hood arrangement is easy to manufacture and low in cost, and thus may readily be made available in large quantities to dentists Aand physicians generally.

Various modications, alternative constructions and equivalents may be employed without departing from the true spirit and scope of the invention as exemplilied in the foregoing description and defined in the following claims.

I claim:

1. In a hypodermic syringe, the combination comprising an elongated body, a hollow hypodermic needle exaeaaoss tending from the front end of said body, an annular nut threaded onto the front end of said body for holding said needle thereon, a mounting ring with a flange thereon removably secured between said nut and said body, a tubular hood telescopically received over said body and said needle for concealing and guarding said needle, said lhood having a nose portion with an axial guide opening therein slidably received over said needle for movement therealong, said hood being slidably retractable and extensible along said body and said needle for selectively uncovering said needle, a spring acting between said ring and said hood for resiliently retracting said hood, and a manually releasable catch for retaining said hood in its extended position against the resilient action of said spring.

2. An attachment for use with a hypodermic syringe having a body with a hypodermic needle secured to the front end thereof by a hollow nut, said attachment comprising a mounting ring having an inwardlyV directed ange adapted to be secured between the nut and the body of said syringe, a generally tubular hood adapted to conceal and guard the needle on the syringe, said hood being slidable over said mounting ring and having a nose portion with an opening therein adapted to slide along the needle, a spring acting between said ring and said hood for resiliently retracting said hood to expose the needle, and manually releasable catch means adapted to act between said body and said hood to detain said v hood in its extended position around the needle against the resilient action of said spring.

3. In a hypodermic syringe, the combination comprising an elongated generally cylindrical body, a hypodermic needle extending forwardly from said body, a hollow nut threaded onto the front end of said body for securing said needle thereto, a mounting ring having an inwardly directed flange disengageably secured between said nut and said body, a generally tubular hood for concealing and guarding said needle, said hood having a generally cylindrical rear portion slidable over said ring and received around said body, said hood having a tapering'nose portion with an axial opening therein slidably received around said needle, said hood `having a forwardly facing internal shoulder disposed rearwardly of said ring, a compression coil spring acting between said ring and said shoulder for biasing said hood into its retracted position with said needle extended through said opening, and a manually releasable catch acting between said body and said hood to detain said hood in its extended position over said needle against the resilient action of said spring.

References Cited in the le of this patent UNITED STATES PATENTS Belgium June 14, 1952

US2925083A 1957-12-27 1957-12-27 Hypodermic syringe with hood for guarding and concealing the needle Expired - Lifetime US2925083A (en)

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Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884230A (en) * 1973-09-27 1975-05-20 Goldwyn L Wulff Flexible needle and guard device for a hypodermic syringe
US4573976A (en) * 1984-05-24 1986-03-04 Dolores A. Smith Shielded needle
US4592744A (en) * 1985-08-14 1986-06-03 The University Of Virginia Alumni Patents Foundation Self-resheathing needle assembly
EP0216460A1 (en) * 1985-07-29 1987-04-01 National Research Development Corporation Safety device for hypodermic needle or the like
US4664654A (en) * 1986-03-07 1987-05-12 Strauss Eric C Automatic protracting and locking hypodermic needle guard
EP0240987A2 (en) * 1986-04-07 1987-10-14 ICU Medical, Inc. Medical device
US4738663A (en) * 1987-06-04 1988-04-19 Bogan David B Hypodermic needle shield
US4752290A (en) * 1987-07-27 1988-06-21 Schramm James J Needle bearing medical device with three-position shield
US4772272A (en) * 1987-05-11 1988-09-20 Mcfarland Barton C Needle protective sleeve
US4795432A (en) * 1987-02-19 1989-01-03 Karczmer Claude M Shield assembly for hypodermic injection devices
US4816024A (en) * 1987-04-13 1989-03-28 Icu Medical, Inc. Medical device
US4820275A (en) * 1987-12-21 1989-04-11 Habley Medical Technology Corporation Retractable needle syringe with integral spring
US4826490A (en) * 1985-07-29 1989-05-02 National Research Development Corporation Safety device for hypodermic needle or the like
US4846805A (en) * 1987-12-04 1989-07-11 Icu Medical, Inc. Catheter insert device
FR2633520A1 (en) * 1988-06-30 1990-01-05 Brunel Marc Syringe of the type comprising an injection needle for single use, in particular for the dental field
US4898590A (en) * 1988-06-24 1990-02-06 Research Foundation Of The State University Of N.Y. Syringe having protective sleeve
EP0372892A2 (en) * 1988-12-02 1990-06-13 Antonio Henriques Roseiro Plastic material syringe for dental treatment
US4997422A (en) * 1989-01-31 1991-03-05 Chow Peter P Hypodermic syringe with needle shield
US5013301A (en) * 1988-11-18 1991-05-07 Marotta Jr Phillip Syringe holder
US5045066A (en) * 1990-06-07 1991-09-03 Smith & Nephew, Inc. Dental needle with stick resistant protective sleeve
USRE34045E (en) * 1987-05-11 1992-08-25 Health Technology Systems, Inc. Needle protective sleeve
US5154699A (en) * 1988-03-01 1992-10-13 Ryan Medical, Inc. Safety winged needle device for use with fistulas
EP0599354A1 (en) * 1986-10-17 1994-06-01 United States Surgical Corporation A trocar
US5324272A (en) * 1990-07-27 1994-06-28 Sterling Winthrop Inc. Multiple-celled safety package, needle guard and safe disposal module for prefilled medication cartridge
FR2700959A1 (en) * 1993-02-02 1994-08-05 Creange Alain Syringe with incorporated needle protection
US5338311A (en) * 1993-08-23 1994-08-16 Mahurkar Sakharam D Hypodermic needle assembly
US5372590A (en) * 1990-07-27 1994-12-13 Habley Medical Technology Corporation Multi-celled safety package, needle guard and safety disposal module with sleeve for prefilled medication cartridges
US5437647A (en) * 1990-05-09 1995-08-01 Safety Syringes, Inc. Disposable self-shielding aspirating syringe
US5536257A (en) * 1986-07-23 1996-07-16 British Technology Group Ltd. Safety device for hypodermic needle or the like
US5549572A (en) * 1985-07-29 1996-08-27 British Technology Group, Ltd. Safety device for hypodermic needle or the like
US5624400A (en) * 1990-05-09 1997-04-29 Safety Syringes, Inc. Disposable self-shielding aspirating syringe
US5683370A (en) * 1996-06-06 1997-11-04 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5836921A (en) * 1993-08-23 1998-11-17 Mahurkar; Sakharam D. Hypodermic needle assembly
USRE36447E (en) * 1985-07-29 1999-12-14 Btg International Limited Safety device for hypodermic needle or the like
US6117112A (en) * 1997-11-18 2000-09-12 Mahurkar; Sakharam D. Single-use safety syringe
US6190361B1 (en) 2000-04-18 2001-02-20 Gettig Technologies, Inc. Selectively lockable needle guard
US6280401B1 (en) 1993-08-23 2001-08-28 Sakharam D. Mahurkar Hypodermic needle assembly
US20020161337A1 (en) * 2000-02-18 2002-10-31 Shaw Derek J Automatically operable safety shield system for syringes
US20020193748A1 (en) * 1999-11-18 2002-12-19 Cocker Robin Craig Safety device
US20030114797A1 (en) * 2001-12-17 2003-06-19 Vaillancourt Vincent L. Safety needle with collapsible sheath
DE10254195A1 (en) * 2002-11-20 2004-06-09 Pajunk Ohg Besitzverwaltung Ampoule holder for injection syringes, comprises a holder body incorporating a chamber, and a protective cover slidable axially from a rest position to a safety position
US20040162532A1 (en) * 2003-02-14 2004-08-19 Cocker Robin Craig Safety device with trigger mechanism
US20060264825A1 (en) * 2005-05-20 2006-11-23 Safety Syringes, Inc. Syringe with needle guard injection device
US20080051724A1 (en) * 2003-02-14 2008-02-28 Bedford Anthony J Safety device with trigger mechanism
US20080262434A1 (en) * 2007-04-20 2008-10-23 Vaillancourt Michael J Huber needle with safety sheath
US20080269693A1 (en) * 2007-04-26 2008-10-30 Tyco Healthcare Group Lp Multifunctional medical access device
US7481797B2 (en) 2001-11-28 2009-01-27 Mahurkar Sakharam D Retractable needle single use safety syringe
US20100152677A1 (en) * 2008-12-11 2010-06-17 Vaillancourt Michael J Device for removing a huber needle from a patient
US20100286609A1 (en) * 2009-05-05 2010-11-11 Mahurkar Sakharam D Universal safety syringe
US8574197B2 (en) 2004-02-26 2013-11-05 C. R. Bard, Inc. Huber needle safety enclosure
US9248234B2 (en) 2010-09-10 2016-02-02 C. R. Bard, Inc. Systems for isolation of a needle-based infusion set
USD760891S1 (en) 2014-02-12 2016-07-05 Abbvie Inc. Injection tool
WO2017073658A1 (en) * 2015-10-30 2017-05-04 テルモ株式会社 Grip and syringe assembly

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US1845036A (en) * 1930-03-12 1932-02-16 Herbert H Busher Hypodermic syringe
US1921034A (en) * 1931-10-31 1933-08-08 Marche Norman O La Syringe container and ejector
US2309502A (en) * 1940-12-16 1943-01-26 Douglas Beverly Syringe

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BE511524A (en) *
US1845036A (en) * 1930-03-12 1932-02-16 Herbert H Busher Hypodermic syringe
US1921034A (en) * 1931-10-31 1933-08-08 Marche Norman O La Syringe container and ejector
US2309502A (en) * 1940-12-16 1943-01-26 Douglas Beverly Syringe

Cited By (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884230A (en) * 1973-09-27 1975-05-20 Goldwyn L Wulff Flexible needle and guard device for a hypodermic syringe
US4573976A (en) * 1984-05-24 1986-03-04 Dolores A. Smith Shielded needle
USRE36447E (en) * 1985-07-29 1999-12-14 Btg International Limited Safety device for hypodermic needle or the like
US5549572A (en) * 1985-07-29 1996-08-27 British Technology Group, Ltd. Safety device for hypodermic needle or the like
EP0216460A1 (en) * 1985-07-29 1987-04-01 National Research Development Corporation Safety device for hypodermic needle or the like
US4826490A (en) * 1985-07-29 1989-05-02 National Research Development Corporation Safety device for hypodermic needle or the like
US5601535A (en) * 1985-07-29 1997-02-11 British Technology Group Ltd. Safety device for hypodermic needle or the like
USRE36398E (en) * 1985-07-29 1999-11-16 Btg International Limited Safety device for hypodermic needle or the like
US4592744A (en) * 1985-08-14 1986-06-03 The University Of Virginia Alumni Patents Foundation Self-resheathing needle assembly
US4664654A (en) * 1986-03-07 1987-05-12 Strauss Eric C Automatic protracting and locking hypodermic needle guard
EP0240987A3 (en) * 1986-04-07 1988-10-05 Icu Medical, Inc. Medical device
EP0240987A2 (en) * 1986-04-07 1987-10-14 ICU Medical, Inc. Medical device
US5536257A (en) * 1986-07-23 1996-07-16 British Technology Group Ltd. Safety device for hypodermic needle or the like
EP0599354A1 (en) * 1986-10-17 1994-06-01 United States Surgical Corporation A trocar
US4795432A (en) * 1987-02-19 1989-01-03 Karczmer Claude M Shield assembly for hypodermic injection devices
US4816024A (en) * 1987-04-13 1989-03-28 Icu Medical, Inc. Medical device
US4772272A (en) * 1987-05-11 1988-09-20 Mcfarland Barton C Needle protective sleeve
USRE34045E (en) * 1987-05-11 1992-08-25 Health Technology Systems, Inc. Needle protective sleeve
US4738663A (en) * 1987-06-04 1988-04-19 Bogan David B Hypodermic needle shield
US4752290A (en) * 1987-07-27 1988-06-21 Schramm James J Needle bearing medical device with three-position shield
US4846805A (en) * 1987-12-04 1989-07-11 Icu Medical, Inc. Catheter insert device
US4820275A (en) * 1987-12-21 1989-04-11 Habley Medical Technology Corporation Retractable needle syringe with integral spring
US5154699A (en) * 1988-03-01 1992-10-13 Ryan Medical, Inc. Safety winged needle device for use with fistulas
US4898590A (en) * 1988-06-24 1990-02-06 Research Foundation Of The State University Of N.Y. Syringe having protective sleeve
US5207646A (en) * 1988-06-30 1993-05-04 Marc Brunel Single use shieldable hypodermic syringe with a reusable handle
WO1990000073A1 (en) * 1988-06-30 1990-01-11 Marc Brunel Syringe of the type comprising a single-use injection needle, in particular for dental applications
FR2633520A1 (en) * 1988-06-30 1990-01-05 Brunel Marc Syringe of the type comprising an injection needle for single use, in particular for the dental field
US5013301A (en) * 1988-11-18 1991-05-07 Marotta Jr Phillip Syringe holder
EP0372892A2 (en) * 1988-12-02 1990-06-13 Antonio Henriques Roseiro Plastic material syringe for dental treatment
EP0372892A3 (en) * 1988-12-02 1991-01-30 Antonio Henriques Roseiro Plastic material syringe for dental treatment
US4997422A (en) * 1989-01-31 1991-03-05 Chow Peter P Hypodermic syringe with needle shield
US5624400A (en) * 1990-05-09 1997-04-29 Safety Syringes, Inc. Disposable self-shielding aspirating syringe
US5437647A (en) * 1990-05-09 1995-08-01 Safety Syringes, Inc. Disposable self-shielding aspirating syringe
USRE37439E1 (en) * 1990-05-09 2001-11-06 Safety Syringes, Inc. Disposable self-shielding aspirating syringe
US5045066A (en) * 1990-06-07 1991-09-03 Smith & Nephew, Inc. Dental needle with stick resistant protective sleeve
US5380296A (en) * 1990-07-27 1995-01-10 Sterling Winthrop Inc. Multi-celled safety package, needle guard and safe disposal module for pre-filled medication cartridges
US5324272A (en) * 1990-07-27 1994-06-28 Sterling Winthrop Inc. Multiple-celled safety package, needle guard and safe disposal module for prefilled medication cartridge
US5372590A (en) * 1990-07-27 1994-12-13 Habley Medical Technology Corporation Multi-celled safety package, needle guard and safety disposal module with sleeve for prefilled medication cartridges
FR2700959A1 (en) * 1993-02-02 1994-08-05 Creange Alain Syringe with incorporated needle protection
US5338311A (en) * 1993-08-23 1994-08-16 Mahurkar Sakharam D Hypodermic needle assembly
US5685862A (en) * 1993-08-23 1997-11-11 Mahurkar; Sakharam D. Hypodermic needle assembly
US5514100A (en) * 1993-08-23 1996-05-07 Mahurkar; Sakharam D. Hypodermic needle assembly
US5879338A (en) * 1993-08-23 1999-03-09 Mahurkar; Sakharam D. Needle-syringe assembly for guidewire insertion
US5891105A (en) * 1993-08-23 1999-04-06 Mahurkar; Sakharam D. Hypodermic needle assembly
US6280401B1 (en) 1993-08-23 2001-08-28 Sakharam D. Mahurkar Hypodermic needle assembly
US6500129B1 (en) 1993-08-23 2002-12-31 Sakharam D. Mahurkar Hypodermic needle assembly
US5836921A (en) * 1993-08-23 1998-11-17 Mahurkar; Sakharam D. Hypodermic needle assembly
US5683370A (en) * 1996-06-06 1997-11-04 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5957893A (en) * 1996-06-06 1999-09-28 Becton Dickinson & Co. Hard tip over-the needle catheter and method of manufacturing the same
US5913848A (en) * 1996-06-06 1999-06-22 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US5916208A (en) * 1996-06-06 1999-06-29 Luther Medical Products, Inc. Hard tip over-the-needle catheter and method of manufacturing the same
US6117112A (en) * 1997-11-18 2000-09-12 Mahurkar; Sakharam D. Single-use safety syringe
US20020193748A1 (en) * 1999-11-18 2002-12-19 Cocker Robin Craig Safety device
US7320682B2 (en) 1999-11-18 2008-01-22 Tyco Healthcare Group Lp Safety device
US20040254540A1 (en) * 2000-02-18 2004-12-16 Astrazeneca Ab, A Sweden Corporation Automatically operable safety shield system for syringes
US20020161337A1 (en) * 2000-02-18 2002-10-31 Shaw Derek J Automatically operable safety shield system for syringes
US7500964B2 (en) 2000-02-18 2009-03-10 Astrazeneca Ab Automatically operable safety shield system for syringes
US20070191783A1 (en) * 2000-02-18 2007-08-16 Astrazeneca Ab Automatically Operable Safety Shield System for Syringes
US7118552B2 (en) 2000-02-18 2006-10-10 Astrazeneca Ab Automatically operable safety shield system for syringes
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US7481797B2 (en) 2001-11-28 2009-01-27 Mahurkar Sakharam D Retractable needle single use safety syringe
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