|Publication number||US3439675 A|
|Publication date||Apr 22, 1969|
|Filing date||Jun 14, 1966|
|Priority date||Jun 14, 1966|
|Publication number||US 3439675 A, US 3439675A, US-A-3439675, US3439675 A, US3439675A|
|Inventors||Martin Bruce Cohen|
|Original Assignee||Becton Dickinson Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (52), Classifications (12)|
|External Links: USPTO, USPTO Assignment, Espacenet|
April22, 1969 M- B COHEN DEFORMABLE NEEDLE ASSEMBLY Filed June 14, 1966 INVENTOR.
#4 7/0 520:! cabana ATI R /S United States Patent 3,439,675 DEFORMABLE NEEDLE ASSEMBLY Martin Bruce Cohen, Maywood, N.J., assignor to Becton Dickinson and Company, Rutherford, N.J., a corporation of New Jersey Filed June 14, 1966, Ser. No. 557,533 Int. Cl. A61m /32 US. Cl. 128-239 3 Claims ABSTRACT OF THE DISCLOSURE This invention relates to an improved needle assembly usable with any one of a number of syringes and, more particularly, to an ophthalmic needle assembly of this type capable of being economically produced and efficiently shaped for the desired use by merely bending it by hand preparatory to use, while being sufliciently low in cost thereby permitting complete disposability of the entire syringe unit after a single use.
Normally, the needle assemblies available for opthalmic use are costly to manufacture because they are delicately constructed and generally fabricated with a special blunt tip and surrounding areas. A needle assembly of any other type could have adverse effects and lead to permanent damage. The special blunt tip of the typical ophthalmic needle assembly has been carefully manufactured to avoid undesirable sharp edges and yet still possess the desired characteristics for use in ophthalmic applications. Certain ophthalmic needle assemblies are preformed into special shapes and curvature to satisfy particular requirements. In the case of prior art needle assemblies, this unfortunately has resulted in increased costs to an extent that it would be unreasonable to dispose of at least the needle assembly after a single use.
It has been proposed by the prior art to construct the needle assembly of a bendable material thereby permitting it to be formed into the desired shape prior to use. However, contamination of an otherwise sterile needle assembly has frequently occurred during the bending process.
With the foregoing in mind, it has been demonstrated that there is a need for a needle assembly for ophthalmic use in which the required special tip may be economically produced, the needle assembly may be constructed of a bendable material capable of being bent by hand without danger of contamination while also being capable of use with many types of syringes, and the resulting needle assembly may be economically produced and efficiently used so as to lend itself to disposability after single use.
It is, therefore, an object of this invention to provide a disposable ophthalmic needle assembly which incorporates an inexpensive, unpointed cannula, covered by a plastic sheath and which can be economically manufactured.
Another object of this invention is to produce a needle assembly of this type with a shield whereby the assembly may be bent by hand into the desired shape immediately prior to use and before removal of the shield, thereby eliminating the danger of contamination of the needle assembly during handling and the bending process.
Still another object of this invention is to provide a needle assembly of this type usable with many types of 3,439,675 Patented Apr. 22, 1969 syringes, including a prefilled disposable ophthalmic syringe thereby providing a completely marketable and disposable unit.
With these and other objects in mind, reference is had to the attached drawings of the invention in which:
FIG. 1 is a longitudinal sectional view showing the needle assembly of the invention connected to one of a wide variety of available syringes, the combination having particular application as an ophthalmic syringe;
FIG. 2 is an enlarged fragmentary sectional side view of the needle assembly of FIG. 1 with phantom lines depicting the assembly in the process of bending to the desired shape;
FIG. 3 is a similar enlarged fragmentary sectional side view showing the shape of the cannula and sheath after it has been bent by hand and the shield has been removed;
FIG. 4 is an enlarged cross-sectional view of the needle assembly taken along the plane of line 4-4 of FIG. 2;
FIG. 5 is an enlarged sectional end view of the cannula and plastic sheath only taken along the plane of line 5-5 of FIG. 2; and
FIG. 6 is a longitudinal sectional view showing the needle assembly of the invention mounted on a conventional hub.
In FIG. 1, a needle assembly 20 of this invention is shown attached to one of the many types of syringes with which it may be used. The illustrated exemplary embodiment embraces a by-pass syringe 21 adapted to store and then release the fluid for use. The syringe 21 includes a barrel 22 which contains an elongated by-pass slot 23 cooperable with a forward stopper 24, an open rear end 25 closed by rear plunger 26 and a forward discharge end 27. The chamber 28 between stopper 24 and plunger 26 is adapted to receive the selected medicament.
The illustrated needle assembly 20 is secured to the forward end 27 of the barrel but it should be understood that any one of a number of fixed or detachable connecting structures may be employed in associating the needle assembly 20 with the typical forward reduced boss 29 con taining bore 30. With this in mind, the needle assembly 20 of the illustrated embodiment is comprised of a hollow, tubular cannula 31 having an unpointed end 32 and its entire exposed outer surface covered by a tubular plastic sheath 33. The shank end 40 of the cannula 31 fits into and is held in bore 30 of the reduced cylindrical boss 29 extending forwardly of the barrel 22. The sheath 33 abuts against the tip of the cylindrical extension 29 of the barrel 22. The sheath 33 also extends beyond the unpointed end of the cannula 31, where it forms a rounded closed blunt end 35. A pair of small diametrically opposed holes 36 in the sheath 33 and at right angles to the axis of the cannula 31 are located between the tip of the cannula 31 and the end 35 of the sheath 33. Under these circumstances, the medicament, when released from chamber 28 through by-pass slot 23, will pass through bore 30 into the lumen 41 of the cannula 31 and, finally, through the two small holes 36 in the sheath 33.
The needle assembly 20 is protected by a plastic tubular shield 37. The open rear end of the shield 37 is mounted on the outer surface of the cylindrical boss 29 of the barrel 22. The other end of the shield is closed and defines a substantially hemispherical configuration. By grasping the shield 37 before its removal, the needle assembly 20 may be bent to substantially any desired or prescribed shape typified by the curvature illustrated in FIG. 3. In this connection, any of a variety of metals or plastics may be used for cannula 31 capable of being manually bent and of retaining the induced shape. Naturally, this manual bending is most advantageously accomplished while the shield 37 is still mounted over the needle assembly 20 3 thereby avoiding the danger of contamination of the exposed parts of the needle assembly 20.
In reference to FIG. 6, it can be seen that the needle assembly 20 may be mounted on a conventional type of hub 46 and fixed in position by any common adhesive compound known to the art. The needle assembly 20 with hub 46 may be. associated with a syringe. In this manner, the needle assembly 20 with hub 46 may be independently packaged and used with a variety of difi'erent syringes, ampoules and the like.
The elements of the needle assembly 20 in FIG. 6 correspond to the elements of the needle assembly 20 depicted in FIGS. 1-5. Accordingly, they Will be similarly numbered.
Basically, this invention provides an economically manufactured low-cost needle assembly for ophthalmic use which may be used with many types of syringes, whether prefilled or not, to form a completely disposable ophthalmic syringe assembly. Economy of production allows for complete disposability after single use, whereas, in the past, ophthalmic needle assemblies simply did not lend themselves to disposability mainly because of their high cost. As will be appreciated, the needle assembly of this invention is also efiicient to use in that it may be bent by hand into any desired shape by merely grasping and bending the protective shield 37 covering the associated cannula 31 and sheath 33. In this manner, contamina tion of the needle assembly is prevented because the needle assembly 20 is not required to be touched at any time prior to use to conform it to the desired shape.
Thus, the above-mentioned objects of the invention, among others, are achieved. The range and scope of the invention are defined in the appended claims.
1. A disposable needle assembly for ophthalmic use comprising an unpointed metal cannula, having a shank and unpointed end, a plastic sheath covering said cannula, extending from its shank to its unpointed end, said sheath extending beyond the unpointed end terminating in a rounded sealed surface, and at least one hole in the sheath intermediate the unpointed end of the cannula and the rounded sealed end of the sheath thereby providing a needle assembly of low cost construction which is economical to produce, both said cannula and sheath being bendable so as to be bent to a selected configuration, bending means surrounding the needle assembly and adapted to be manually grasped to facilitate bending of the needle assembly to a selected configuration without contaminating the needle assembly, and said cannula and sheath being constructed of such material as to maintain said selected shape after said bending means is released.
2. A needle assembly in accordance with claim 1 wherein the bending means includes a bendable, hollow, cylindrical shield covering the needle assembly, said shield having a rounded sealed end adjacent the rounded sealed end of the needle assembly, the opposite open end of the shield adapted to fit and seal itself to the barrel of the syringe.
3. A needle assembly in accordance with claim 1 wherein said needle assembly is attached to a prefilled by-pass syringe.
References Cited UNITED STATES PATENTS 1,125,887 1/1915 Schimmel 128-221 1,155,848 10/1915 Tyrrell 128-239 XR 2,705,008 3/1955 Melton.
3,094,122 6/ 1963 Gauthier et al 128-221 3,225,763 12/ 1965 Waterman 128-261 XR 3,330,282 7/1967 Visser et al 128-218 XR RICHARD A. GAUDET, Primary Examiner.
M. F. MAJESTIC, Assistant Examiner.
US. Cl. X.R.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US1125887 *||Jan 19, 1915||Hypodermic syringe.|
|US1155848 *||Sep 17, 1914||Oct 5, 1915||Charles A Tyrrell||Rectal syringe.|
|US2705008 *||Jan 21, 1954||Mar 29, 1955||Morton Newburger||Medication cartridge-needle-needle guard unit for hypodermic syringe|
|US3094122 *||Jan 18, 1961||Jun 18, 1963||Gauthier Theophile E||Flexible cannula and intravenous needle combined|
|US3225763 *||Jun 18, 1962||Dec 28, 1965||Chesebrough Ponds||Medicinal injector|
|US3330282 *||Aug 21, 1964||Jul 11, 1967||Upjohn Co||Combination syringe and vial mixing container|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4573979 *||Aug 23, 1984||Mar 4, 1986||Innovative Surgical Products, Inc.||Irrigation/aspiration tip|
|US4753636 *||Mar 4, 1986||Jun 28, 1988||Endocon, Inc.||Subcutaneous implant kit|
|US4813928 *||Apr 9, 1987||Mar 21, 1989||Hoechst Japan Limited||Nozzle for tissue adhesive|
|US4990140 *||Nov 13, 1989||Feb 5, 1991||Johnson & Johnson Medical, Inc.||Flexible spray tip for syringe|
|US4993941 *||Apr 29, 1988||Feb 19, 1991||Nissho Corporation||Dental irrigating needle|
|US5053020 *||Apr 6, 1990||Oct 1, 1991||The Upjohn Company||Applicator having two cannulas|
|US5067944 *||Feb 16, 1990||Nov 26, 1991||Jerry Robles||Hypodermic needle guard|
|US5092854 *||Oct 19, 1990||Mar 3, 1992||Johnson & Johnson Medical, Inc.||Two-part flexible swivel spray tip for syringe|
|US6135984 *||Jan 6, 1999||Oct 24, 2000||Dishler; Jon G.||Cannula for use in corrective laser eye surgery|
|US6413245||Oct 4, 2000||Jul 2, 2002||Alcon Universal Ltd.||Sub-tenon drug delivery|
|US7108682 *||Jan 24, 2003||Sep 19, 2006||Medtronic Vascular, Inc.||Device for protecting a distal portion of a catheter system during shipment and storage|
|US7153316||Nov 9, 2001||Dec 26, 2006||Mcdonald Marguerite B||Surgical instruments and method for corneal reformation|
|US7285107 *||Sep 26, 2003||Oct 23, 2007||Alcon, Inc.||Vitreoretinal instrument|
|US8177747||Nov 30, 2010||May 15, 2012||Alcon Research, Ltd.||Method and apparatus for drug delivery|
|US8251980 *||Mar 30, 2010||Aug 28, 2012||Alcon Research, Ltd.||Viscous fluid extraction|
|US8372036||Feb 12, 2013||Alcon Research, Ltd.||Multi-layer heat assembly for a drug delivery device|
|US8579866||Dec 29, 2008||Nov 12, 2013||Ucb Pharma, S.A.||Systems and methods for administering medication|
|US8632511||May 5, 2010||Jan 21, 2014||Alcon Research, Ltd.||Multiple thermal sensors in a multiple processor environment for temperature control in a drug delivery device|
|US8801648||Feb 5, 2009||Aug 12, 2014||Glaukos Corporation||Ocular implant with anchor and methods thereof|
|US8801649||Oct 5, 2010||Aug 12, 2014||Transcend Medical, Inc.||Glaucoma treatment device|
|US8808219||Feb 5, 2009||Aug 19, 2014||Glaukos Corporation||Implant delivery device and methods thereof for treatment of ocular disorders|
|US8808220||Oct 14, 2010||Aug 19, 2014||Transcend Medical, Inc.||Ocular pressure regulation|
|US8814819||Dec 16, 2010||Aug 26, 2014||Transcend Medical, Inc.||Glaucoma treatment device|
|US8814820||Sep 20, 2012||Aug 26, 2014||Glaukos Corporation||Ocular implant with therapeutic agent and methods thereof|
|US8945038||May 17, 2013||Feb 3, 2015||Transcend Medical, Inc.||Internal shunt and method for treating glaucoma|
|US9155656||Feb 10, 2014||Oct 13, 2015||Transcend Medical, Inc.||Delivery system for ocular implant|
|US9241832||Apr 18, 2013||Jan 26, 2016||Transcend Medical, Inc.||Delivery system for ocular implant|
|US9301875||Mar 18, 2005||Apr 5, 2016||Glaukos Corporation||Ocular disorder treatment implants with multiple opening|
|US9333305||Dec 22, 2014||May 10, 2016||Ucb Biopharma Sprl||Systems for automatically administering medication|
|US9351873||Mar 6, 2014||May 31, 2016||Transcend Medical, Inc.||Ocular pressure regulation|
|US20040147880 *||Jan 24, 2003||Jul 29, 2004||Niall Duffy||Device for protecting a distal portion of a catheter system during shipment and storage|
|US20050271704 *||Mar 18, 2005||Dec 8, 2005||Hosheng Tu||Injectable glaucoma implants with multiple openings|
|US20070244442 *||May 16, 2007||Oct 18, 2007||Chowhan Masood A||Device for Ophthalmic Drug Delivery|
|US20090093788 *||Oct 1, 2008||Apr 9, 2009||Alcon Research, Ltd.||Thermal Coefficient Driven Drug Pellet Size For Ophthalmic Injection|
|US20090093789 *||Oct 1, 2008||Apr 9, 2009||Alcon Research, Ltd.||Method of Delivering A Rate And Temperature - Dependent Substance Into The Eye|
|US20090137983 *||Feb 5, 2009||May 28, 2009||Glaukos Corporation||Implant delivery device and methods thereof for treatment of ocular disorders|
|US20090138081 *||Feb 5, 2009||May 28, 2009||Glaukos Copporation||Ocular implant with anchor and methods thereof|
|US20100286632 *||Nov 11, 2010||Cesario Pereira Dos Santos||Multi-Layer Heat Assembly For A Drug Delivery Device|
|US20100286654 *||May 5, 2010||Nov 11, 2010||Cesario Pereira Dos Santos||Multiple Thermal Sensors in a Multiple Processor Environment for Temperature Control in a Drug Delivery Device|
|US20110028883 *||Oct 5, 2010||Feb 3, 2011||Juan Jr Eugene De||Glaucoma treatment device|
|US20110028884 *||Feb 3, 2011||Minas Theodore Coroneo||Ocular pressure regulation|
|US20110092878 *||Dec 27, 2010||Apr 21, 2011||Glaukos Corporation||Ocular implant delivery system and methods thereof|
|US20110098629 *||Dec 16, 2010||Apr 28, 2011||Juan Jr Eugene De||Glaucoma treatment device|
|US20110105987 *||Oct 28, 2010||May 5, 2011||Glaukos Corporation||System and method for treating an ocular disorder|
|US20110152767 *||Jun 23, 2011||Pinedjian Raffi S||Method and Apparatus for Drug Delivery|
|US20110245787 *||Mar 30, 2010||Oct 6, 2011||Zica Michael A||Viscous fluid extraction|
|US20120035559 *||Feb 9, 2012||Rucinski Paul J||Device and Method for Abscess Irrigation|
|USD641078||Jul 5, 2011||Ucb Pharma, S.A.||Medical syringe with needle tip cap|
|USD649632||Nov 29, 2011||Ucb Pharma, S.A.||Handle for a medication administration device|
|USD653336||Jan 31, 2012||Ucb Pharma, S.A.||Needle tip cap connector|
|USD661389||Jun 5, 2012||Ucb Pharma, S.A.||Syringe handle for a medication administration device|
|EP0428378A2 *||Nov 13, 1990||May 22, 1991||JOHNSON & JOHNSON MEDICAL, INC.||Flexible spray tip for syringe|
|U.S. Classification||604/192, 604/275|
|International Classification||A61M5/28, A61M5/32|
|Cooperative Classification||A61M5/284, A61M2005/341, A61M5/3291, A61M5/3202, A61M5/329, A61M5/32|
|European Classification||A61M5/32, A61M5/32B|