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 numberUS3200486 A
Publication typeGrant
Publication dateAug 17, 1965
Filing dateSep 16, 1963
Priority dateSep 16, 1963
Publication numberUS 3200486 A, US 3200486A, US-A-3200486, US3200486 A, US3200486A
InventorsShields Walter A
Original AssigneeShields Walter A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of applying a shield to a hypodermic needle
US 3200486 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Aug. 17, 1965 w. A. SHIELDS METHOD OF APPLYING A SHIELD TO A HYPODERMIC NEEDLE Filed Sept. 16, 1963 INVENTOR WALTER A.SHIELDS United States Patent 3,209,486 METI-IIBD 9F APPLYING A SHIELD TO A hYPGDERMIC NEEDLE Walter A. Shields, Jamaica, N.Y. (38--tl9 24th St, Long Island City, Long Island, N.Y-) Filed Sept. 16, I963, Ser. No. 309,035 3 Claims. (Cl. 29-422) This invention relates to the method of applying a protective shield on the end portion of a hypodermic needle which is inserted into the neck of a syringe barrel or into the pierceable sealing member of a vial containing a liquid medicament whereby the hypodermic needle does not contact said neck or the pierceable sealing memher and become contaminated by bacteria on the neck or pierceable sealing member.

It is the object of the invention to provide a method of applying a protective shield on said end portion of the hypodermic needle whereby said protective shield is mechanically applied on a straight line production principle.

Other objects and advantages of the invention will be set forth in the detailed description of the invention.

In the drawing accompanying and forming a part of this application:

FIGURE 1 is a vertical view, partly in section, showing the initial step in the method of applying a protective shield to an end portion of a hypodermic needle;

FIGURE 2 is a view similar to FIGURE 1 showing the second step in the method;

FIGURE 3 is a view similar to FIGURES 1 and 2 showing the two final steps in the method;

FIGURE 4 is a vertical-sectional view of the product produced by the method;

FIGURE 5 is a view partly in section of the product produced by the method applied to a syringe carrying a cartridge or vial containing a liquid medicament and showing the function of the protective shield; and

FIGURE 6 is a view similar to FIGURE 5 showing the product applied directly to the vial containing the medicament.

A hypodermic needle 7 having penetrating ends 8 and 9 is mounted in a cap member 10 with the penetrating end 8 extended exteriorly of the closed end of the cap member and the penetrating end 9 extended from the open end of the cap member. In FIGURES 1 to 5, inclusive, the skirt of the cap member I0 is provided with internal screw-threads for the releaseable engagement of screwthreads on the exterior of an end portion of a syringe barrel 11 as shown in FIGURE 5. The barrel II is provided with a neck portion 12 through which the needle end portion provided with the penetrating end 9 is passed. A vial 13 containing a liquid medicament m is provided at one end with a beaded mouth 14 closed by a pierceable disk 15 secured to the mouth 14 by a perforated cap 16 having the skirt crimped around the beaded mouth, as shown at 17 in FIGURES 5 and 6. The opposite end of the vial I3 is closed by a plunger 18 having a screwthreaded stud 19 extended from the outer end thereof. The vial I3 is inserted in the syringe barrel 11 through the end opposite the end arranged with the neck portion 12 and said opposite end is closed by a plug closure 20 screw-threaded in said opposite end, as shown in FIG- URE 5. A rod 21 is slidably mounted in the plug closure 2% with the inner end of said rod screw-threaded on the stud 1% and the outer end of the rod 21 provided with a manipulating knob 22.

In the use of the syringe shown in FIGURE 5, the vial I3 is inserted in the syringe barrel 11 and the plug closure 29 is screw-threaded in said barrel and the rod 21 3,29%,435 Patented Aug. 17, 1965 is attached to the plunger 13, after which the penetrating end 9 of the hypodermic needle 7 is pushed through the perforation in the cap 16 and the pierceable disk 15 into the liquid medicament m. During the insertion of the needle 7 into the medicament m, the cap member 10 is screwed on the syringe barrel 11. After the cap member 10 is secured to the syringe barrel 11, the syringe is ready for use by puncturing the skin of a patent with the penetrating end 8 of the hypodermic needle 7 and pushing the rod 21 into the syringe barrel 11.

In FIGURE 6, the use of the syringe barrel 11 is omitted and the screw-threads on the skirt of the cap member 10 are also omitted. The skirt of the cap member 10 has a slip-on engagement with the skirt portion of the cap 16. The operation of the vial type of syringe shown in FIGURE 6 is the same as the barrel type of syringe whereby a rod, not shown, but'similar to the rod 21, is attached to the stud 19.

It is the object of the invention to maintain the needle 7 as sterile as possible and there is always the possibility that the interior surface of the neck portion 12 in FIG- URE 5 or the mouth 14 in FIGURES 5 and 6 may have become contaminated and the end portion of the needle 7 arranged with the penetrating end 9 may become contaminated by contacting said interior surface when it is inserted into said neck portion 12 or said mouth 14.

To avoid said contamination of the needle, the end of the needle entering the syringe barrel and medicament containing vial has been covered by a sleeve as shown in Patent No. 3,055,364, issued September 25, 1962, to Simon Myerson and Richard L. Myerson. This sleeve of the patent to Myerson et al. is placed on the needle by hand which is a slow and expensive method.

It is the object of the invention to reduce the cost and time in placing the sleeve or protective shield on the needle.

A plurality of needles 7 and their carrying cap members It) are first sterilized and placed on a conveyor, not shown, and successively positioned above a pair of rolls 23 feeding a length of tubing 24 of fusible plastic material through a guide member 25. The rolls 23 feed a predetermined length of tubing 24 along the entire length of the needle 7 extending into and out of the cap member 10 with the forward end of the tubing abutting the interior of the bottom or closed end of the cap member, as shown in FIGURE 2.

Subsequent to the positioning of the tubing 24 over the needle, spaced portions of said feed tubing are collapsed around the needle above the penetrating end 9 and below said penetrating end 9, as at 26 and 27 in FIGURES 3 and 4. This is accomplished in the present illustration of the invention by fusing said portions of the tubing by burners 23 spaced around the portions of the tubing where it is desired to collapse. Other means for performing this step may be employed. The fusing of the portion of the tubing below the penetrating end 9 will form a sack 29 enclosing said penetrating end 9, as shown in FIGURE 4.

Simultaneously with or subsequently to the collapsing of the portions 26 and 27, the sack 29 is severed from the tubing by a blade 39 supported on the guide member 25 and reciprocated toward and away from the tubing 24, as shown in FIGURES 2 and 3.

After the sterilization of the needle 7 and their carrying cap members 10 and before the end portions of the needles 7 arranged with the penetrating ends 9 are encased with the sacks 29, each of the opposite end portions of the needles 7 arranged with the penetrating ends 8 is enclosed by a shield 31 having an enlarged openend portion 32 seated over a tubular portion 33 of the cap member 10.

After the sacks 29 have been applied, the entire needle units are removed from the conveyor and packaged.

In use, the sack 29 is forced either into the neck 12 of the syringe barrel, as shown in FIGURE 5, or through the perforation of the cap 16 and into the mouth 14 of the vial 13, as shown in FIGURE 6, and the contact of the sack 29 with said neck portion 12 or the cap 16 and the mouth 14 will hold said sack and the continued movement of the cap member 10 onto the syringe barrel 11 or onto the cap 16 will move the penetrating end 9 from the sack 29 and into the vial 13. Said continued movement of the needle will compress the sack 29 in the neck portion 12 or the cap 16 and the mouth 14, as shown at 34 in FIGURES and 6.

Having thus described my invention, I claim:

1. The method of applying a protective shield on one end portion of a hypodermic needle mounted in a cap member with the first end portion of the hypodermic needle extended from the exterior of said cap member and the second end portion of the hypodermic needle extended into the cap member, comprising feeding tubing of protective material and of greater length than the second end portion of the hypodermic needle onto said second end portion of the hypodermic needle with the forward end of the tubing abutting the interior of the cap member, collapsing spaced portions of the tubing to close the tubing around the second end portion of the hypodermic needle and at a point beyond the extremity of the second end portion of the hypodermic needle, and severing the tubing beyond the collapsed portion positioned beyond the extremity of the second end portion of the hypodermic needle.

2. The method of applying a protective shield on one end portion of a hypodermic needle, comprising feeding tubing of fusibl; material and of greater length than said end portion of the hypodermic needle onto said end portion of the hypodermic needle, heating spaced portions of said tubing to close the tubing around the hypodermic needle and at a point beyond the extremity of the end portion of hypodermic needle to be protected, and severing the tubing beyond the closed portion positioned beyond the extremity of the end portion of the hypodermic needle.

3. The method of applying a protective shield on one end of a hypodermic needle as claimed in claim 2, Wherein the heating of spaced portions of said tubing is produced by flame heating.

References Cited by the Examiner UNITED STATES PATENTS 11/47 Roos 29-422 X 12/58 Doering et al. 29422

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2430995 *Dec 31, 1942Nov 18, 1947Roos William LawrenceEnd-sealed thermoplastic container body
US2864159 *Sep 29, 1954Dec 16, 1958Western Electric CoMethod of making splicing sleeve assemblies
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3330004 *Nov 4, 1963Jul 11, 1967Nosco PlasticsHypodermic syringe
US3500821 *Dec 5, 1967Mar 17, 1970Asper Vac CorpMultiple blood sampling apparatus with aspiration means
US3585984 *Apr 10, 1968Jun 22, 1971Parke Davis & CoBlood transfer device
US3707968 *Oct 7, 1970Jan 2, 1973Sherwood Medical Ind IncArming cap for breech loaded syringe
US3886930 *Nov 28, 1973Jun 3, 1975Abbott LabBlood collecting assembly
US4356610 *Jun 23, 1980Nov 2, 1982American Home Products CorporationMethod of manufacturing catheter for measuring intrauterine pressure or the like
US4592745 *Feb 29, 1984Jun 3, 1986Novo Industri A/SDispenser
US5002538 *Oct 25, 1988Mar 26, 1991Johnson Johnnie MSyringe adapter and method
US6915823Dec 3, 2003Jul 12, 2005Forhealth Technologies, Inc.Automated apparatus and process for reconstitution and delivery of medication to an automated syringe preparation apparatus
US6991002Dec 3, 2003Jan 31, 2006Forhealth Technologies, Inc.Tamper evident syringe tip cap and automated method for preparing tamper-evident syringes
US7017622Apr 30, 2003Mar 28, 2006Forhealth Technologies, Inc.Automated means for removing, parking and replacing a syringe tip cap from a syringe
US7117902Dec 3, 2003Oct 10, 2006Forhealth Technologies, Inc.Automated means of storing, dispensing and orienting injectable drug vials for a robotic application
US7240699May 15, 2006Jul 10, 2007Forhealth Technologies, IncAutomated means for storing, dispensing and orienting injectable drug vials for a robotic application
US7681606Jun 19, 2007Mar 23, 2010Fht, Inc.Automated system and process for filling drug delivery devices of multiple sizes
US7753085Nov 1, 2006Jul 13, 2010Forhealth Technologies, Inc.Automated drug preparation apparatus including automated drug reconstitution
US7814731Oct 20, 2006Oct 19, 2010Forhealth Technologies, Inc.Automated drug preparation apparatus including a bluetooth communications network
US7900658Oct 20, 2006Mar 8, 2011Fht, Inc.Automated drug preparation apparatus including drug vial handling, venting, cannula positioning functionality
US7913720Oct 31, 2006Mar 29, 2011Fht, Inc.Automated drug preparation apparatus including serial dilution functionality
US7984805 *Aug 31, 2005Jul 26, 2011Griff Industries IncMedical sharps retardation apparatus and a method of retarding medical sharps from future use
US8151835Jun 21, 2007Apr 10, 2012Fht, Inc.Automated drug delivery bag filling system
US8191339Feb 19, 2010Jun 5, 2012Fht, Inc.Automated drug preparation apparatus including automated drug reconstitution
US8209941Nov 2, 2009Jul 3, 2012Fht, Inc.Automated drug preparation apparatus including syringe loading, preparation and filling
US8220503Mar 4, 2010Jul 17, 2012Fht, Inc.Automated drug preparation apparatus including drug reconstitution
US8353869Mar 11, 2011Jan 15, 2013Baxa CorporationAnti-tampering apparatus and method for drug delivery devices
US8678047Jul 10, 2012Mar 25, 2014Baxter Corporation EnglewoodAutomated drug preparation apparatus including automated drug reconstitution
US8784377Jan 9, 2013Jul 22, 2014Baxter Corporation EnglewoodAnti-tampering apparatus and method for drug delivery devices
US9382021Feb 27, 2014Jul 5, 2016Baxter Corporation EnglewoodAutomated drug preparation apparatus including automated drug reconstitution
US20040104243 *Apr 30, 2003Jun 3, 2004Forhealth Technologies, Inc.Automated means for removing, parking and replacing a syringe tip cap from a syringe
US20050004706 *Dec 3, 2003Jan 6, 2005Osborne Joel A.Tamper evident syringe tip cap and automated method for preparing tamper-evident syringes
US20050045242 *Dec 3, 2003Mar 3, 2005Osborne Joel A.Automated means of storing, dispensing and orienting injectable drug vials for a robotic application
US20060201575 *May 15, 2006Sep 14, 2006Forhealth Technologies, Inc.Automated means for storing, dispensing and orienting injectable drug vials for a robotic application
US20070125442 *Nov 1, 2006Jun 7, 2007Forhealth Technologies, Inc.Automated drug preparation apparatus including automated drug reconstitution
US20080021387 *Aug 31, 2005Jan 24, 2008Rodolfo GabaMedical Sharps Retardation Apparatus and a Method of Retarding Medical Sharps from Future Use
US20080035234 *Jun 19, 2007Feb 14, 2008Forhealth Technologies, Inc.Automated system and process for filling drug delivery devices of multiple sizes
US20080051937 *Jun 21, 2007Feb 28, 2008Forhealth Technologies, Inc.Automated drug delivery bag filling system
US20080169045 *Oct 31, 2006Jul 17, 2008Forhealth Technologies, Inc.Automated drug preparation apparatus including serial dilution functionality
US20100100234 *Nov 2, 2009Apr 22, 2010Forhealth Technologies, Inc.Automated drug preparation apparatus including syringe loading, preparation and filling
US20100161113 *Mar 4, 2010Jun 24, 2010Forhealth Technologies, Inc.Automated drug preparation apparatus including drug reconstitution
US20100217431 *Feb 19, 2010Aug 26, 2010Forhealth Technologies, Inc.Automated drug preparation apparatus including automated drug reconstitution
USRE43597 *Mar 6, 2008Aug 21, 2012Mary Lucille Pilkington TrustAdapter and method of attachment for “LUER LOK” receptacles
DE3215289A1 *Apr 22, 1982Nov 3, 1983Bausch & Stroebel MaschfCap attachment device
Classifications
U.S. Classification29/422, 604/206, 264/271.1, 604/263, 29/428
International ClassificationA61M5/32
Cooperative ClassificationA61M5/3202
European ClassificationA61M5/32B