Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3828775 A
Publication typeGrant
Publication dateAug 13, 1974
Filing dateJun 28, 1971
Priority dateFeb 6, 1969
Publication numberUS 3828775 A, US 3828775A, US-A-3828775, US3828775 A, US3828775A
InventorsJ Armel
Original AssigneeIso Nuclear Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Self-packaged hypodermic syringe
US 3828775 A
Abstract
The invention contemplates a self-packaged hypodermic syringe wherein the body of the syringe is itself an important part of the package. Removable end seals complete the packaged article and respectively provide actuating access to the plunger at the rear end, and to the needle at the forward end. As long as the syringe is stored, the needle is in a retracted position, protected against mechanical abuse or contact; upon plunger actuation, the needle is displaced to its forwardly projected position, in readiness for use. In the preferred forms which are described, the syringe body and the seal or closure structures are of a suitable plastic, shaped for localized frangibility when exposed to gamma irradiation of such dosage as to achieve sterility of the entire contents of the sealed structure.
Images(2)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

- tent 1" SELF-PACKAGED HYPODERMIC SYRINGE [75] Inventor: Jack Armel, New York, NY.

[73] Assignee: Iso Nuclear (Zorn, Ballston Spa,

[22] Filed: June 28, 1971 [21] Appl. No.: 157,744

Related US. Application Data [63] Continuation of Ser. No. 797,095, Feb. 6, 1969,

[58] Field of Search... 128/215, 216, 218 R, 218 N, 128/218 D, 122 D, 220; 206/622 R, 622 A, 63.3

[56] References Cited UNITED STATES PATENTS 2,371,086 3/1945 Watson et al 128/216 2,408,323 9/1946 Lockhart 128/220 2,880,725 4/1959 128/218 N 2,887,l08 5/1959 Kendall 128/218 N 2,902,995 9/1959 Loper 128/215 2,935,067 5/1960 Bouet 128/216 2,997,043 8/1961 Flynn 206/63.2 R X 3,098,483 7/1963 Nielsen 128/220 3,110,309 11/1963 Higgins 128/218 D 3,315,802 4/1967 Lonholdt et a1. 206/62.3 R X [451 Aug. 113, 1974 3,584,626 6/1971 Johansson 128/218 N FOREIGN PATENTS OR APPLICATIONS Primary ExaminerJoseph S. Beich Attorney, Agent, or FirmSand0e, Hopgood & Calimafde [5 7] ABSTRACT The invention contemplates a self-packaged hypoderr'nic syringe wherein the body of the syringe is itself an important part of the package. Removable end seals complete the packaged article and respectively provide actuating access to the plunger at the rear end, and to the needle at the forward end. As long as the syringe is stored, the needle is in a retracted position, protected against mechanical abuse or contact; upon plunger actuation, the needle is displaced to its forwardly projected position, in readiness for use. In the preferred forms which are described, the syringe body and the seal or closure structures are of a suitable plastic, shaped for localized frangibility when exposed to gamma irradiation of such dosage as to achieve sterility of the entire contents of the sealed structure.

8 Claims, 6 Drawing Figures 1 SELF-PACKAGED HYPODERMIC SYRINGE Thisapplication is a continuation of copending application Ser. No. 797,095, filed Feb. 6, 1969, now abandoned.

According to present techniques, hypodermic syringes require individual containers to assure sterility, and special packaging is required to permit sterilization by gas. To assure sterility, the packaging must be permeable to gas and, therefore, the package is generally flimsy and may easily be ruptured aftergas sterilization, thus destroying its sterile condition. A hermetically sealed container made of durable and puncture-proof material, usually plastic, can be sterilized by gamma radiation. Moreover, the bulk now involved in using individual outer containers represents an undesirable limitation on loading density, should it be desired to sterilize through gamma irradiation.

It is accordingly an object of the invention to provide an improved syringe and package construction.

It is another object to provide a construction meeting the above object and substantially reducing the handling costs, while assuring the highest standards of sterility in the packaged article.

It is a specific object to achieve the foregoing objects with a construction and method which provide positive assurance of initial sterility and which prevent any further bacterial contamination from the outside environment.

Still another object is to achieve the foreoing objects without need for further packaging-theindividual item,

as in an envelope, box or tube.

It is also an object to provide an improved hypodermic-syringe construction which permits storing the needle in a fully retracted and protected position until ready for use.

It is a specific object to achieve the immediately preceding object with a construction in which the needle, when projected for use, is automatically locked and positively referenced to the body of the syringe.

A still further object is to meet the above objects with a construction in which greater packing density is achievable than at present, thus enabling a larger number of units to be gamma-sterilized, per unit volume of space, and thus also providing storage convenience.

A general object is to achieve the highest quality sterile product, at reduced cost of manufacture, and inherently lending itself to the further saving of cost in sterilizing, storage, and shipping.

Other objects and various further features of novelty and invention will be pointed out or will occur to those skilled in the art from a reading of the following specification, in conjunction with the accompanying drawings. In said drawings, which show, for illustrative purposes only, preferred forms of the invention:

FIG. 1 is a longitudinal sectional view of a selfpackaged syringe of the invention, shown fully sealed, as for storage;

FIG. 2 is a view similar to FIG. 1, but with the selfstored needle projected in readiness for taking-on an injection charge;

FIG. 3 is another similar view. to show the plunger or piston fully retracted, as after the injection charge has been loaded into the syringe; and

FIGS. 4, 5 and 6 are views similar to FIGS. 1, 2 and 3, respectively, to show similar manipulations for an alternative construction.

Briefly stated, the invention contemplates a selfpackaged hypodermic syringe wherein the body of the syringe is itself an important part of the package. Removable end seals complete the packaged article and respectively provide actuating access to the plunger at the rear end, and to the needle at the forward end. As long as the syringe is stored, the needle is in a retracted position, protected against mechanical abuse or contact; upon plunger actuation, the needle is displaced to its forwardly projected position, in readiness for use. In the preferred forms which are described, the syringe body and the seal or closure structures are of a suitable plastic, shaped for localized frangibility the same being exposed to gamma irradiation of such dosage as to achieve sterility of the entire contents of the sealed structure.

Referring to FIGS. 1 to 3 of the drawings, the invention is shown in application to a self-packaged, sterilized, hypodermic syringe comprising an elongated tubular body 10 having a barrel 11 with a continuous bore 12 which is open at the rear or actuating end, and which is substantially closed at the forward or injection end. Substantial closure is achieved at an integral forwardly projecting neck 13, connected to the barrel 11 by a tapering or frusto-conical wall 14. The neck 13 has an elongated reduced bore 15 to substantially reduced diameter, sized to accommodate and centrally support a hypodermic needle 16. Initially, and while my device remains self-packaged, the forward end of the neck passage 15 is fully closed, as by the integral formation of an enlarged clsoure head or knob 17. This closure 17 is severable from the rest of the body 10 and neck 13 at a frangible section 18, denoted by a circumferential groove around the reduced forward portion 19 of the neck 13.

In accordance with a feature of the invention, the needle 16 is formed as part of a retracted subassembly which includes a support or piloting structure 20, deriving, from the larger bore 12, central guided support for the rear end of needle 16. In the form shown, the piloting structure comprises a dished frusto-conical element 21 riding bore 12 and including a central, forwardly projecting hub or boss 22 for the firmly bonded and well-rooted attachment of the rear end of needle 16. Preferably, the conical tapers at 14-21 match one another, and a counterbore 23 in the root end of the reduced bore 15 is sized ultimately to receive boss 22 with a snug fit.

A plunger assembly 25 includes a piston 26 having liquid-sealing, guided engagement with the continuous bore 12, and an elongated stem which, in the selfpackaged position shown in FIG. 1, projects rearwardly of body 10 atleast substantially to the extent that piston 26 is spaced from the closed end of the body. Piston 26 is shown with a short, central, forwardly projecting boss 27 for abutment with the base of dished element 21. Piston 26 may be formed integrally with the rearwardly extending stem structure but it is preferably a separate element, having the desired contourconforming local resilience to achieve liquid-sealing engagement with bore 12. As a separate element, piston 26 is thus seen as essentially a button which may have snap-fitted or detent engagement with a suitable formation at the forward end of the stem; details of such a connected-relationship form no part of the claimed invention and are therefore not shown.

In the preferred form shown, the stem pilots on bore 12 throughout its overlap therewith, and it is structured to conserve the plastic material of which it is made. The stem comprises plural angularly spaced elongated radial blades 28-29-30, integrally contiguous on the plunger axis and deriving outer-edge support from bore 12. A front disc 31 and a rear disc 32 are integrally formed with blades 282930, as are appropriately spaced reinforcing sector members, as at 33-34. Preferably, the rear disc 32 is radially enlarged to exceed the bore 12, for ease of thumb manipulation.

In accordance with another feature of the invention, the rearwardly projecting end of the stem is sealed to the body when in self-packaged condition. This may be achieved by dipping the rear end of body 10 and the rearwardly projecting end of the stem into a bath of liquid plastic which does not adhere to the stem material, and by allowing a plastic coat to harden to form a continuous protecting skin or sheath that is hermetically sealed to the rear end of body 10; such a sheath may be readily removed when desired, by rip-strip techniques known in the art. However, I prefer to employ a cupped or envelope enclosure for the rearward projecting stem and that the continuous hermetically sealed connection thereof to body 10 shall include a frangible element to make the envelope removable, when desired.

In the form of FIG. 1, the stem enclosure is afforded by a cup 35 circumferentially secured, as by known heat-sealing techniques, to the rear or open end of the body 10. As shown, body 10 terminates in a radially outward flange 36, for ultimate ease of manual actuation of the syringe. Flange 36 also affords a convenient means of positioning the open end of the envelope or cup 35, as by overlap with a circular positioning ring or ridge 37 formed integrally with flange 36. A short outward flange 39 on cup 35 abuts body flange 36 and facilitates circumferential application of axial squeezing pressure during the heat-sealing process. The frangible section of cup 35 is indicated at a circumferential groove 38 near the location of body attachment, whereby the thickness of cup material at this location is materially reduced, as discussed above for the frangible section 18 at the other end of the device.

In accordance with the invention, the plastic material for the body 10 and for the envelope 35 is selected, as from the polypropylenes, and the reduced thickness at 18 and 38 is selected for locally enhanced frangibility at 18 and 38, the sealed syringe and envelope being exposed to a sterilizing dose of gamma radiation. Stated in other words, the stress necessary to effect rupture at the relatively thin portions (l838) is reduced as a result of gamma radiation sufficient to provide sterilization. The complete self-packaged device will thereafter remain hermetically sealed, in sterile condition, regardless of outside contaminating environments.

When use is desired, the frangible sections 18 and 38 are simply severed. At 18, a manually applied side thrust of knob 17, with the thumb applied at 18, is operative to develop rupture stress to sever the neck at 18 and thus to open the reduced passage 15. At 38, a manual squeeze applied to any diameter at the central region of envelope 35 will develop rupture stress to at least partially, if not completely, sever the envelope from the body, at 38. Local squeezing at angularly displaced locations is thereafter effective to complete the removal of the envelope 35.

Having severed the removable closures 17-35, the syringe is then grasped, at 36 by two fingers of one hand (diametrically spanning the body 10), and at 32 by applying thumb pressure. Such pressure advances the plunger and the needle subassembly to the full forward position shown in FIG. 2, at which point the skirt 21 of the needle-piloting subassembly has entered into locked one-way-engaging relation with plural angularly spaced ridges or ribs 40 formed in the continuous bore 12 of the body. The ridges 40 are shown as gentle ramps rising from the bore 12, in the radially inward direction and in the forward direction; ridges 40 terminate at an abrupt wall to establish a locking hold on the skirt 21 as it clears the ends of the locking ramps. At this full forward position (FIG. 2) the boss 22 is snugly fitted into the counterbore 23, thus establishing a firmly rooted and locked support for the needle 16, which is now fully forward and in readiness for use. Thereafter, operation of the syringe is conventional, by submerging the exposed needle in any serum or other liquid to be injected, while withdrawing the plunger in order to fill the body 10. Such withdrawn or fully loaded condition involves the relation of parts illustrated in FIG. 3. Once the desired injection has been made, the entire assembly may be discarded.

In the embodiment of FIGS. 4 to 6 many of the same parts will be recognized from FIGS. 1 to 3, and therefore the same reference numerals have been employed, but with primed notation. The embodiments of FIGS. 4 to 6 merely illustrate alternative provision of frangible closures for the respective ends of the selfpackaged syringe.

Referring to FIG. 4, closure of the reduced passage 15 for the retracted needle 16' is effected at a diaphragm 50 formed integrally with the body 10, and of such substantially reduced thickness as to exhibit the brittle characteristics discussed above in connection with the grooves 18-38.

FIG. 4 further illustrates alternative provision of the removable enclosure for the rearwardly extending end of the stem of the plunger. For this purpose, the closing envelope 35 may be cut from straight tubular material, and the body flange 36 and diameter of thumb piece 32 sized to the same circumferential proportions, whereby the tube 35 may be overlapped with both of members 32' and 36'; alternatively, as shown, the closing envelope 35' may be of cup-shape, sized at its open end for overlap with flange 36, the thumb piece 32 being the bottom of the cup shape. Circumferential sealing is accomplished at the axial overlap of these members, and the package is thus effectively closed and hermetically sealed. Circumferential grooves, at 51 near the body flange 36' and at 52 near the thumb piece 32', establish frangible sections in the manner discussed above in connection with the groove 38 that the desired local embrittlement is again the result of design of reduced section thickness at 51-52, for the particular plastic material and for the gamma-radiation dosage required to establish sterility of the contents.

In use, a squeeze of the central region of the envelope 35' is adequate to sever the frangible sections 51-52. Such parting may be facilitated by additionally providing one or more elongated generally longitudinal grooves as suggested at 53 (between grooves 51-52) in the envelope 35' so that upon circumferential severance at 51-52, the circumferential continuity of envelope 35 may also be broken, and the broken material removed, freeing the plunger for use. The plunger may then be forwardly projected to break the diaphgram 50 and establish the needle 16 in its locked firmly positioned forward position. Thereafter, operation is as described for FIGS. 1 to 3. g

It will be seen that l have described an improved hypodermic syringe construction meeting all the above stated objectives and having a number of important advantages over present constructions, particularly when viewed in the context of the problems of sealing, storing and shipping the device. My construction has eliminated both the need for use of a separate package, and the need for employment of any particular sterilizing precautions during the assembly of parts. The parts are not brittle during the mechanical assembly operations and, therefore, no particular limitations for careful handling by automated machinery are necessary. Embrittlement only occurs as a final step at the time when the fully sealed package is being also sterilized by the radiation dose. Finally, since the need for a separate container has been eliminated, the only size limitation created by my construction is that required for convenient manual manipulation of the syringe body itself. It is thus possible to accumulate a greater density of sealed syringes within the given unit volume, thereby optimizing the loading density within a given irradiation facility.

As intimated in the remarks above, the invention lends itself to inexpensive mass-production, affording a sterile instrument at minimum cost. In this connection, all parts except the needle itself may be of injectionmolded plastic, formed, for example, in multiple-cavity molds in accordance with present technology.

While the invention has been described in connection with the preferred method and forms shown, it will be understood that modifications may be made without departing from the scope of the invention, as defined in the claims.

I claim:

1. A self-packaged hypodermic syringe, comprising an elongated tubular body having means providing a continuous bore that is open at a rear end and substan tially closed at the other end, said closed end including an axially outwardly extending neck having means providing a relatively reduced elongated bore, first removable means closing the open end of the reduced bore means, piston means having a position spaced a predetermined distance from the closed end of said body and having guided support in the continuous bore means, said piston means including a stem extending rearwardly beyond the open end of the continuous bore means to at least the extent of said predetermined distance and including a flange of radial extent exceeding that of the continuous bore means, an elongated needle having its forward end positioned within the reduced bore means, piloting means positioned by the continuous bore means and forwardly of the piston means for centrally supporting the rearward end of said needle, second removable means includinga frangible portion peripherally continuously connected to said flange and body at the rear end of the continuous bore means and effectively encapsulating the rearwardly projecting end of said stem, whereby upon removing said first and second removable means, said stem may be actuated to axially drive said piston and needle to a forward position in which said needle projects beyond the neck of said body, in readiness for use.

2. A self-packaged hypodermic syringe, comprising an elongated tubular body having continuous bore means that is open at a rear end and substantially closed at the other end; said closed end having means providing a relatively reduced central elongated bore closed near an end thereof, an elongated needle adapted to be centrally and slidably supported by and within said bore means, a piston movably guided within said continuous bore means and positioned rearwardly of the needle and having a stem projecting rearwardly beyond the rear end of said continuous bore means, said stem including a radially outwardly extending peripheral flange at its rearwardly projecting end, and a hermetically sealed enveloping enclosure for the rear end of said stem and peripherally continuously connecting said flange to said body; said body and said envelope being of a plastic material for which, at a sufficiently thin section and for a predetermined gammaradiation exposure, the stress necessary to effect rupture at the thin section will be reduced, such exposure being adequate to achieve desired sterilization within said body; said body being formed with a first such localized thin section near the closed end of the reduced bore means, said envelope having a circumferentially extending localized groove establishing a second such thin section, and the remainder of the body being formed with a material thickness which exceeds that at either of said thin sections; whereby upon subjection of said syringe to such predetermined gamma-radiation exposure, the syringe and its contents will be sterilized and the stress necessary to effect rupture at the thin sections will have been reduced.

3. The syringe of claim 1, in which said firstmentioned removable means comprises a frangible diaphragm closing the reduced bore means.

4. The syringe of claim 1, in which said neck includes means providing a counterbore intermediate the continuous bore means and the reduced bore means, and in which said piloting means for said needle includes an axially elongated hub supporting said needle and engageable in said counterbore means when in fullforward position.

5. The syringe of claim 4, in which further central supporting means for said needle is in slidable contact with said continuous bore means and in which said body and said further central supporting means include interlocking means positioned for engagement at a fullforward position of said central supporting means adjacent said neck.

6. The syringe of claim 5, in which said interlocking means includes an elongated ramp detent formed radially inwardly in the continuous bore means near the forward end thereof, said ramp terminating in a locking shoulder.

7. The syringe of claim 6, in which said ramp detent is one of a plurality of like detents formed at angularly spaced locations in the continuous bore means.

8. The syringe of claim 2, in which said circumferentially extending groove is at substantially one radialplane location.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2371086 *Nov 12, 1941Mar 6, 1945WatsonHypodermic injector
US2408323 *Jun 10, 1943Sep 24, 1946Margaret L LockhartHypodermic syringe
US2880725 *Jun 11, 1954Apr 7, 1959Becton Dickinson CoSyringe assembly
US2887108 *Nov 18, 1953May 19, 1959Becton Dickinson CoSyringe assembly
US2902995 *Oct 11, 1954Sep 8, 1959Abbott LabHypodermic syringe and needle hub structure
US2935067 *Mar 29, 1955May 3, 1960Bernard BouetHypodermic set
US2997043 *Aug 17, 1954Aug 22, 1961Becton Dickinson CoProtective cannula sheath
US3098483 *Dec 29, 1961Jul 23, 1963Leo Pharm Prod LtdTwo-compartment hypodermic syringe for separate storing of more components
US3110309 *Aug 15, 1960Nov 12, 1963Brunswick CorpPlastic cartridge needle assembly
US3315802 *Oct 22, 1965Apr 25, 1967Novo Terapeutisk Labor AsPackage for sterile storage of surgical devices and accessories
US3584626 *Aug 27, 1968Jun 15, 1971Johansson Lars GeorgHypodermic syringe
FR66437E * Title not available
FR330586A * Title not available
FR897996A * Title not available
FR1081785A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4026287 *Dec 10, 1975May 31, 1977Irene HallerSyringe with retractable cannula
US4148316 *Aug 29, 1977Apr 10, 1979Stewart-Naumann Laboratories, Inc.Self-sealed hypodermic syringe
US4334536 *Nov 5, 1980Jun 15, 1982Pfleger Frederick WHypodermic syringe needle assembly
US4872552 *Nov 16, 1988Oct 10, 1989Mid-South Products Engineering, Inc.Safety packaging for hypodermic syringes with needles and the like
US4908023 *Aug 15, 1988Mar 13, 1990Frank YuenSyringe assembly
US4982842 *Jun 4, 1990Jan 8, 1991Concord/PortexSafety needle container
US5014718 *Sep 22, 1989May 14, 1991Safety Diagnostics, Inc.Blood collection and testing method
US5070886 *Jun 19, 1990Dec 10, 1991Safety Diagnostice, Inc.Blood collection and testing means
US5086780 *May 21, 1990Feb 11, 1992Abbott LaboratoriesBlood collection device
US5139489 *Mar 4, 1991Aug 18, 1992Smiths Industries Medical Systems, Inc.Needle protection device
US5154285 *Dec 20, 1991Oct 13, 1992Smiths Industries Medical Systems, Inc.Needle assembly holder with rotatable safety sheath member
US5171220 *Jan 16, 1992Dec 15, 1992Takeda Chemical Industries, Ltd.Dual-chamber type syringe
US5188597 *Apr 13, 1992Feb 23, 1993Becton, Dickinson And CompanySafety needle syringe
US5205408 *Feb 12, 1992Apr 27, 1993Cobb Neal ESyringe case
US5232454 *Aug 1, 1990Aug 3, 1993Smiths Industries Medical Systems, Inc.Safety needle container
US5232455 *Jan 7, 1991Aug 3, 1993Smiths Industries Medical Systems, Inc.Syringe with protective housing
US5273543 *Dec 14, 1992Dec 28, 1993Becton, Dickinson And CompanySafety needle syringe
US5395339 *Jan 31, 1992Mar 7, 1995Sherwood Medical CompanyMedical device with sterile fluid pathway
US5725499 *May 11, 1994Mar 10, 1998Plas-Pak Industries, Inc.Dual barreled syringe and methods of assembly and use
US5830193 *Dec 19, 1994Nov 3, 1998Higashikawa; TetsuroSyringe
US6033386 *Dec 18, 1998Mar 7, 2000Inviro Medical Devices, Ltd.Safety syringe needle device with interchangeable and retractable needle platform
US6117113 *Dec 14, 1999Sep 12, 2000Inviro Medical Devices Ltd.Safety syringe needle device with interchangeable and retractable needle platform
US6129711 *Oct 27, 1995Oct 10, 2000Schering AktiengesellschaftFluid-containing plastic disposable syringe that is to be sterilized and a process for filling and sealing same
US6183464Jun 1, 1998Feb 6, 2001Inviro Medical Devices Ltd.Safety syringe with retractable needle and universal luer coupling
US6328713Jul 15, 1999Dec 11, 2001Sims Portex Inc.Needle sheath device
US6344031Aug 15, 2000Feb 5, 2002Laurel A. NovacekSafety syringe needle device with interchangeable and retractable needle platform
US6485460Jan 12, 2001Nov 26, 2002Bracco Diagnostics, Inc.Tamper evident syringe barrel
US6558348 *Dec 29, 2000May 6, 2003Equidyne Systems, Inc.Low cost disposable needleless injector system for variable and fixed dose applications
US6592556Jul 19, 2000Jul 15, 2003Tyco Healthcare Group LpMedical needle safety apparatus and methods
US6648855Jun 14, 2002Nov 18, 2003Becton, Dickinson And CompanySafety needle assembly
US6699217Jun 12, 2002Mar 2, 2004Becton, Dickinson And CompanySafety needle assembly
US6726652Oct 7, 2002Apr 27, 2004Bracco Diagnostics, Inc.Tamper evident syringe barrel
US6780169Jun 12, 2002Aug 24, 2004Becton, Dickinson And CompanySafety shield assembly
US6796968Mar 13, 2001Sep 28, 2004Tyco Healthcare Group LpReaccessible medical needle safety devices and methods
US6846303 *Feb 9, 2004Jan 25, 2005Bracco Diagnostics Inc.Tamper evident syringe barrel
US6878131Jan 11, 2002Apr 12, 2005Inviro Medical Devices, Ltd.Safety syringe needle device with interchangeable and retractable needle platform
US6913592Mar 24, 2003Jul 5, 2005Hns International, Inc.Low cost disposable needleless injector system for variable and fixed dose applications
US6942643Dec 9, 2004Sep 13, 2005Bracco Diagnostics Inc.Tamper evident syringe barrel
US6949086Jun 11, 2003Sep 27, 2005Tyco Healthcare Group LpSeldinger safety shield for medical needles
US6953447 *Oct 22, 2002Oct 11, 2005Societe De Conseils De Recherches Et D'applications Scientifiques (S.C.R.A.S)Pre-filled safety injection device with integrated waste collector
US7001363Nov 26, 2002Feb 21, 2006F. Mark FergusonSafety shield for medical needles
US7029461Jun 6, 2002Apr 18, 2006Tyco Healthcare Group LpSafety shield for medical needles
US7128726Feb 4, 2004Oct 31, 2006Becton Dickinson And CompanySafety needle assembly
US7144389Dec 2, 2002Dec 5, 2006Tyco Healthcare Group, LpSafety shield for medical needles
US7163526Jan 8, 2003Jan 16, 2007Becton, Dickinson And CompanyFlashback blood collection needle with needle shield
US7198618Jun 27, 2001Apr 3, 2007Tyco Healthcare Group LpSafety shield for medical needles
US7220249May 29, 2002May 22, 2007Becton, Dickinson And CompanyHinged needle shield assembly having needle cannula lock
US7223258May 24, 2002May 29, 2007Becton Dickinson And CompanySafety shield assembly
US7300423Nov 19, 2003Nov 27, 2007Tyco Healthcare Group LpSafety device with trigger mechanism
US7320682May 17, 2002Jan 22, 2008Tyco Healthcare Group LpSafety device
US7361159Mar 4, 2002Apr 22, 2008Covidien AgPassive safety shield
US7438703Dec 6, 2001Oct 21, 2008Tyco Healthcare Group LpSafety shield for medical needles
US7537581Dec 12, 2006May 26, 2009Becton, Dickinson And CompanyNeedle shield assembly having hinged needle shield and flexible cannula lock
US7553296Aug 22, 2007Jun 30, 2009Tyco Healthcare Group LpSafety device with trigger mechanism
US7615033Aug 16, 2004Nov 10, 2009Becton, Dickinson And CompanyFlashback blood collection needle
US7854723Jul 3, 2007Dec 21, 2010Becton, Dickinson And CompanyNeedle shield assembly having hinged needle shield
US7862547Oct 21, 2005Jan 4, 2011Tyco Healthcare Group LpSafety shield for medical needles
US8038654Feb 26, 2007Oct 18, 2011Becton, Dickinson And CompanySyringe having a hinged needle shield
US8162896Sep 30, 2009Apr 24, 2012Becton, Dickinson And CompanyFlashback blood collection needle
US8172809Jul 15, 2010May 8, 2012Tyco Healthcare Group LpSafety shield apparatus and mounting structure for use with medical needle devices
US8226617Mar 8, 2007Jul 24, 2012Tyco Healthcare Group LpSafety shield apparatus and mounting structure for use with medical needle devices
US8277408Jul 1, 2003Oct 2, 2012Becton, Dickinson And CompanySafety needle assembly
US8287498Dec 12, 2006Oct 16, 2012Bd Medical Products, Pte. Ltd.Flashback blood collection needle with needle shield
US8496627Mar 21, 2007Jul 30, 2013Covidien LpPassive latch ring safety shield for injection devices
US8708964Feb 1, 2011Apr 29, 2014Bd Medical Products, Pte. Ltd.Flashback blood collection needle with needle shield
USRE37252Mar 30, 1999Jul 3, 2001Sims Portex Inc.Safety needle cartridge system
EP0340297A1 *Oct 24, 1988Nov 8, 1989BAXTER INTERNATIONAL INC. (a Delaware corporation)Drug delivery cartridge with protective cover
EP0495445A1 *Jan 14, 1992Jul 22, 1992Takeda Chemical Industries, Ltd.Dual-chamber type syringe
WO1994013338A1 *Dec 9, 1993Jun 23, 1994Mallinckrodt Medical IncPrefilled syringe with break-away tip seal
WO1995031232A1 *May 10, 1995Nov 23, 1995Plas Pak Ind IncDual barrel syringe and method of use
WO2014014729A1 *Jul 11, 2013Jan 23, 2014Becton, Dickinson And CompanyPackageless syringe assembly with sterilizable fluid path
Classifications
U.S. Classification604/196, 604/200
International ClassificationA61M5/178, A61M5/31, A61M5/00
Cooperative ClassificationA61M2005/312, A61M5/178, A61M5/3202, A61M2005/3121, A61M5/002
European ClassificationA61M5/00P, A61M5/178