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Publication numberUS2830587 A
Publication typeGrant
Publication dateApr 15, 1958
Filing dateJan 27, 1955
Priority dateFeb 1, 1954
Publication numberUS 2830587 A, US 2830587A, US-A-2830587, US2830587 A, US2830587A
InventorsJames Everett Samuel
Original AssigneeJames Everett Samuel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hypodermic needles
US 2830587 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

April 15; 1958 5. J. EVERETT 2,830,587

HYPODERMIC NEEDLES Filed Jan. 27, 1955 United States Patent HYPODERMIC NEEDLES Samuel James Everett, Thornton Heath, England Application January 27, 1955, Serial No. 484,473

Claims priority, application Great Britain February 1, 1954 8 Claims. (Cl. 128-221) This invention relates to needles for the injection of a fluid into or the withdrawal of fluid from the body of man or animal. Such needles are herein referred to as hypodermic needles.

The object of my invention is to provide a hypodermic needle having certain advantages both as to manufacture and use compared with the standard hypodermic needle employed at the present time, which comprises a cylindrical tubular shaft with a coaxial bore and a point that is constituted by a concave bevel imposed on the shaft and that is ground off to an acute tip.

The improved hypodermic needle in accordance with my invention comprises a point formed by imposing a plane or longitudinally concave bevel on to an end portion of a tubular shaft that is of uniform or substantially uniform wall thickness transversely, said end portion being of symmetrical non-circular section such that it has a greater resistance to bending in one axial plane than in an axial plane at an angle to the first-mentioned plane, the bevel being symmetrical with the end portion.

Drawn tube of the requisite section of uniform or substantially uniform wall thickness transversely may be readily produced so that it is possible to make a hypodermic needle in accordance with my invention merely by imposing the bevel on a piece of drawn tube of the required length.

The shaft need not have the same section throughout its length and the section of the shaft could, for example, change from that required to give the required point to a circular section. Thus the end of the shaft which is to be held in the hub for attaching the needle to a syringe may be of circular section which may be blended into the required section at the other end of the shaft by pressing or stamping such other end of the shaft into the required shape, all grinding of the surface of the shaft being thus obviated.

For the production of certain shafts in accordance with my invention I may use a soft core of, for example, low melting point metal, or I may use, for example in the production of a shaft end which is, in section, part triangular and part segmental, some other suitable core or mandrel which is withdrawn from the shaft subsequently to the desired shaping thereof.

By the invention a needle can be formed from a shaft of a section which, when pointed, provides a strong needle with good puncturing power. It is also possible to constrict the outlet of the needle whilst maintaining a large diameter bore elsewhere in the needle and thereby to reduce trauma when injecting certain medicaments. Moreover, needles according to the invention are stronger in the axial plane containing the tip than in a plane at right angles thereto. For example, a shaft of oval section would be more resistant to bending in the plane containing the major axis than in the plane containing the minor axis. This is of advantage in injection when it is necessary to locate the point of the needle accurately.

Various embodiments of the invention will now be described with reference to the accompanying drawing, in

which:

Figures 1, 4, 6, 9 and 12 are partial elevations of five different forms of hypodermic needle;

Figures 2 and 3 are sections of the first needle taken on the lines IIII and III-III respectively in Figure 1;

Figure 5 is a section of the second needle taken on the line VV in Figure 4;

Figures 7 and 8 are sections of the third needle taken on the lines VIIVII and VIII-VIII respectively in Figure 6;

Figures 10 and 11 are sections of the fourth needle taken on the lines X--X and XI-X[ respectively in Figure 9, and

Figure 13 is a section of the fifth needle on the line XIIl'-XIII in Figure 12. i

In the figures, like parts in the difiereut needles are denoted by the same reference numerals and distinguished by primes.

The first needle, illustrated in Figures 1 to 3 of the drawing comprises a tubular shaft 1 of uniform wall thickness having a main portion which is of circular cross section. The shaft 1 has an end portion designated 3 which, adjacent the point 2, has a square section (Figure 3), the shaft thus being formed with four plane longitudinal faces 4, 5, 6 and 7, which are contiguous at the end portion 3 and which, remote therefrom, merge into the main portion of the shaft. The total length of the faces depends on the gauge of the needle; for a 25 gauge needle the length should exceed and for an 18 gauge needle this length should exceed The point 2 is formed by imposing a plane bevel on the end portion 3 the shaft extending down to the junction of the faces 6 and 7 and symmetrically with respect thereto. It will be appreciated that the imposition of the bevel automatically forms a tip 8 with the requisite cutting edges and no grinding ofv the surface of the shaft is required.

The second needle illustrated in Figures 4 and 5 is similar to the needle of Figures 1 to 3 except that the tubular shaft is of square cross-section throughout its length, and there is therefore no need for a separate manufacturing step for forming the plane faces 4, 5, 6' and 7.

The third needle illustrated in Figures 6 to 8 is similar to the needle of Figures 1 to 3 except that instead of forming four faces on the end portion of the shaft, only three faces 10, 11 and 12 are formed. These faces are equal whereby the end portion 3" adjacent the point 2" has a section in the form of an equilateral triangle.

The fourth needle illustrated in Figures 9 to 11 is similar to the third needle just described except that the main portion of the needle is of oval cross-section.

The fifth needle illustrated in Figures 12 and 13 has a tubular shaft 1"" which is of elliptical section throughout its length. The imposition of the bevel on this tube does not automatically result in a tip with the requisite cutting edges, and such edges must be formed subsequently.

In all the needles illustrated the end portions are such that there is more resistance to bending in one axial plane than in another axial plane at an angle thereto. The second, fourth and fifth needles have main portions which also have this characteristic, especially the fourth and fifth needles where the resistance to bending in the plane containing the major axis will exceed that in the plane at right angles thereto containing the minor axis.

I claim:

1. A hypodermic needle having a point formed by imposing a bevel on a tubular shaft, the end portion of said shaft having uniform wall thickness (measured perpendicular to the wall) over substantially the whole length of said portion, the cross-section of said end portion being symmetrical and noncircular, the bevel being such that the point appears symmetrical when seen in any direction containedby an axial plane perpendicular to the general plane of the bevel, said cross-section being such that the resistance to bending of said portionis greatest in said plane perpendicular to the general plane of the bevel.

2 A hypodermic needle having a point formed by imposing a bevel on a tubular shaft, the end portion of the shaft having uniform wall thickness (measured perpendicular to the wall) over substantially the whole length of said portion, the cross-section of said end portion being symmetrical and uniform apart from the beveled end of said portion and having two sides which intersect on the line of symmetry so as to form an angle and provide two contiguous longitudinal faces on said shaft end portion, the cross-section providing the greatest resistance to bending in the axial plane containing the line of symmetry, and the bevel having its general plane perpendicular to said last mentioned plane and intersecting the line of intersection of said two faces whereby a tip with cutting edges is automatically obtained on imposition of the bevel.

3. A needle as claimed in claim 2 wherein said two sides of the cross-section are straight whereby the two contiguous longitudinal faces of the shaft are plane.

4. A needle as claimed in claim 2 wherein the end portion, apart from the beveled part thereof, has a rhomboid section.

5. A needle as claimed in claim 2 wherein the end portion, apart from the beveled part thereof, has a triangular section.

6. A needle as claimed in claim 2 wherein the main portion of the tubular shaft is of circular section and merges into the end portion of noncircular section.

7. A hypodermic needle having a point formed by imposing a bevel on a tubular shaft, the end portion of the shaft having uniform wall thickness (measured perpendicular to the wall) over substantially the whole length of said portion and a uniform oval cross-section apart from the beveled end of the portion, the general plane of the bevel being perpendicular to the axial plane containing the major axis of the oval cross-section.

8. A needle as claimed in claim 7, wherein the bevel is a plane bevel.

FOREIGN PATENTS Great Britain Oct. 27, 1954

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2601580 *Jan 24, 1951Jun 24, 1952Yanus Bronislow JHypodermic needle
GB717594A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3081770 *Sep 21, 1960Mar 19, 1963John M HunterSurgical instrument
US3090384 *Apr 15, 1960May 21, 1963Mfg Process Lab IncNeedle
US3633580 *Sep 29, 1969Jan 11, 1972Knox Lab IncHypodermic needle
US3955558 *Nov 4, 1974May 11, 1976Medcom, Inc.Instrument for spinal taps
US4565545 *Apr 23, 1985Jan 21, 1986Terumo Kabushiki KaishaCatheter insertion device
US5607401 *Mar 10, 1995Mar 4, 1997Humphrey; Bruce H.Augmented polymeric hypodermic devices
US5938635 *Dec 30, 1996Aug 17, 1999Kuhle; William G.Biopsy needle with flared tip
US6042574 *Mar 11, 1998Mar 28, 2000O'halloran; GerardOval ventilation ear tube
US6056772 *May 26, 1998May 2, 2000Bonutti; Peter M.Method and apparatus for positioning a suture anchor
US6338730 *Jun 6, 1995Jan 15, 2002Peter M. BonuttiMethod of using expandable cannula
US6364897Mar 22, 2000Apr 2, 2002Peter M. BonuttiMethod and apparatus for positioning a suture anchor
US6551289 *Sep 27, 1999Apr 22, 2003Dr. Japan Co., Ltd.Outer needle of anesthetic needle assembly for epidural
US6613038Nov 16, 2001Sep 2, 2003Bonutti 2003 Trust-AMethod of using expandable cannula
US6814715Nov 16, 2001Nov 9, 2004Bonutti 2003 Trust AExpandable cannula
US6843783 *Jan 31, 2001Jan 18, 2005Terumo Kabushiki KaishaInjection needle and injection apparatus
US6942684Feb 19, 2002Sep 13, 2005Bonutti Ip, LlcMethod and apparatus for positioning an anchor member
US7632253Dec 6, 2004Dec 15, 2009Terumo Kabushiki KaishaInjection needle and injection apparatus
US7678107 *Mar 10, 2005Mar 16, 2010Boston Scientific Scimed, Inc.Medical needles and electrodes with improved bending stiffness
US7736330Jul 10, 2006Jun 15, 2010Bardy Gust HSubcutaneous implantation instrument with dissecting tool and method of construction
US7780625 *Feb 1, 2006Aug 24, 2010Bardy Gust HInstrument for implanting sensors and solid materials in a subcutaneous location and method thereof
US8221412Jan 25, 2010Jul 17, 2012Boston Scientific Scimed, Inc.Medical needles and electrodes with improved bending stiffness
US8251946Jul 14, 2010Aug 28, 2012Cardiac Science, Inc.Method for constructing an instrument with a two-part plunger for subcutaneous implantation
US8323232Jul 14, 2010Dec 4, 2012Cardiac Science CorporationInstrument with a two-part plunger for subcutaneous implantation
US8348882Jul 14, 2010Jan 8, 2013Cardiac Science CorporationInstrument with a covered bore for subcutaneous implantation
US8366708 *Jun 29, 2012Feb 5, 2013Boston Scientific Scimed, Inc.Medical needles and electrodes with improved bending stiffness
US8394050Aug 23, 2010Mar 12, 2013Cardiac Science CorporationStraight cutting tip for a straight bore subcutaneous implantation instrument
US8398567Feb 4, 2005Mar 19, 2013Bayer Healthcare LlcMethod and apparatus for measuring an analyte in a body fluid
US8435208May 5, 2010May 7, 2013Cardiac Science CorporationSubcutaneous implantation instrument with a scissored dissecting tool assembly and method of construction
US8454552Jul 14, 2010Jun 4, 2013Cardiac Science CorporationMethod for constructing an instrument with a covered bore for subcutaneous implantation
US8496657Aug 29, 2008Jul 30, 2013P Tech, Llc.Methods for utilizing vibratory energy to weld, stake and/or remove implants
US8617185Feb 13, 2008Dec 31, 2013P Tech, Llc.Fixation device
US8747439Jul 10, 2006Jun 10, 2014P Tech, LlcMethod of using ultrasonic vibration to secure body tissue with fastening element
US8764782 *Mar 15, 2009Jul 1, 2014Art, LimitedPhacoemulsification needle
US8808329Apr 3, 2012Aug 19, 2014Bonutti Skeletal Innovations LlcApparatus and method for securing a portion of a body
US8814902Jul 31, 2006Aug 26, 2014Bonutti Skeletal Innovations LlcMethod of securing body tissue
US8845687Sep 17, 2013Sep 30, 2014Bonutti Skeletal Innovations LlcAnchor for securing a suture
US8845699Mar 6, 2012Sep 30, 2014Bonutti Skeletal Innovations LlcMethod of securing tissue
US9060767Mar 2, 2009Jun 23, 2015P Tech, LlcTissue fastener and methods for using same
US9067362Oct 31, 2007Jun 30, 2015P Tech, LlcMethod of using ultrasonic vibration to secure body tissue with fastening element
US9089323Feb 21, 2006Jul 28, 2015P Tech, LlcDevice and method for securing body tissue
US9138222Feb 17, 2004Sep 22, 2015P Tech, LlcMethod and device for securing body tissue
US9149281Jun 7, 2013Oct 6, 2015P Tech, LlcRobotic system for engaging a fastener with body tissue
US9155544Mar 20, 2002Oct 13, 2015P Tech, LlcRobotic systems and methods
US9173647Feb 21, 2006Nov 3, 2015P Tech, LlcTissue fixation system
US9173650May 31, 2011Nov 3, 2015P Tech, LlcMethods and devices for trauma welding
US9192395May 7, 2013Nov 24, 2015P Tech, LlcRobotic fastening system
US9226828Sep 20, 2013Jan 5, 2016P Tech, LlcDevices and methods for stabilizing tissue and implants
US9247937 *Oct 23, 2008Feb 2, 2016Karl Storz Gmbh & Co. KgNeedle attachment for a surgical sewing instrument
US9271741Aug 8, 2013Mar 1, 2016P Tech, LlcRobotic ultrasonic energy system
US9271766Nov 11, 2013Mar 1, 2016P Tech, LlcDevices and methods for stabilizing tissue and implants
US9271779Aug 13, 2013Mar 1, 2016P Tech, LlcMethods of using a robotic spine system
US9399116Jan 31, 2014Jul 26, 2016Smiths Medical Asd, Inc.Method of making catheter assembly with seal member
US9402668Dec 4, 2013Aug 2, 2016P Tech, LlcTissue fixation system and method
US9421005Feb 6, 2007Aug 23, 2016P Tech, LlcMethods and devices for intracorporeal bonding of implants with thermal energy
US9439642Feb 24, 2010Sep 13, 2016P Tech, LlcMethods and devices for utilizing bondable materials
US9463012Oct 5, 2005Oct 11, 2016P Tech, LlcApparatus for guiding and positioning an implant
US9486227Jul 25, 2013Nov 8, 2016P Tech, LlcRobotic retractor system
US9545268Mar 12, 2014Jan 17, 2017P Tech, LlcDevices and methods for stabilizing tissue and implants
US9545495Jun 25, 2010Jan 17, 2017Smiths Medical Asd, Inc.Catheter assembly with seal member
US9579129Mar 11, 2014Feb 28, 2017P Tech, LlcDevices and methods for stabilizing tissue and implants
US9585725Jun 21, 2013Mar 7, 2017P Tech, LlcRobotic arthroplasty system
US9610073Mar 22, 2007Apr 4, 2017P Tech, LlcMethods and devices for intracorporeal bonding of implants with thermal energy
US9629687Aug 12, 2016Apr 25, 2017P Tech, LlcRobotic arthroplasty system
US20020087189 *Feb 19, 2002Jul 4, 2002Bonutti Peter M.Method and apparatus for positioning a suture anchor
US20030171696 *Feb 19, 2003Sep 11, 2003Bayer Healthcare, LlcMinimum invasive optical format with integrated lance
US20030181800 *Mar 20, 2002Sep 25, 2003Bonutti Peter M.Methods of securing body tissue
US20050096603 *Dec 6, 2004May 5, 2005Terumo Kabushiki KaishaInjection needle and injection apparatus
US20050240227 *Jun 29, 2005Oct 27, 2005Bonutti Peter MMethod and apparatus for positioning an anchor member
US20060206111 *Mar 10, 2005Sep 14, 2006Boston Scientific Scimed, Inc.Medical needles and electrodes with improved bending stiffness
US20060206116 *May 3, 2006Sep 14, 2006Yeung Jeffrey EInjection device for the invertebral disc
US20060241695Jul 10, 2006Oct 26, 2006Bonutti Peter MMethod of using ultrasonic vibration to secure body tissue with fastening element
US20060253065 *Feb 1, 2006Nov 9, 2006Bardy Gust HInstrument for implanting sensors and solid materials in a subcutaneous location and method thereof
US20060258958 *Jul 21, 2006Nov 16, 2006Dosmann Andrew JMinimum invasive optical format with integrated lance
US20070213636 *Feb 4, 2005Sep 13, 2007Kuriger Rex JMethod and apparatus for measuring an analyte in a body fluid
US20070249992 *Jul 10, 2006Oct 25, 2007Bardy Gust HSubcutaneous implantation instrument with dissecting tool and method of construction
US20080051734 *Oct 31, 2007Feb 28, 2008Bonutti Peter MExpandable cannula
US20090099535 *Jul 1, 2005Apr 16, 2009Yuean WangDisposable Needle for Syringes and Infusions and the Manufacture Thereof
US20090112258 *Oct 23, 2008Apr 30, 2009Bodo KreidlerNeedle Attachment For A Surgical Sewing Instrument
US20100125250 *Jan 25, 2010May 20, 2010Boston Scientific Scimed, Inc.Medical needles and electrodes with improved bending stiffness
US20100217298 *May 5, 2010Aug 26, 2010Bardy Gust HSubcutaneous Implantation Instrument With A Scissored Dissecting Tool Assembly And Method Of Construction
US20100217301 *May 5, 2010Aug 26, 2010Bardy Gust HMethod For Implanting A Non-Liquid Object
US20100249696 *Jun 14, 2010Sep 30, 2010Bardy Gust HStraight cutting tip for a full large bore subcutaneous implantation instrument
US20100318022 *Aug 23, 2010Dec 16, 2010Bardy Gust HStraight Cutting Tip For A Straight Bore Subcutaneous Implantation Instrument
US20100324578 *Jul 14, 2010Dec 23, 2010Bardy Gust HInstrument With A Two-Part Plunger For Subcutaneous Implantation
US20100324579 *Jul 14, 2010Dec 23, 2010Bardy Gust HInstrument With A Covered Bore For Subcutaneous Implantation
US20100331868 *Jul 14, 2010Dec 30, 2010Bardy Gust HMethod For Constructing An Instrument With A Two-Part Plunger For Subcutaneous Implantation
US20100331874 *Jul 14, 2010Dec 30, 2010Bardy Gust HMethod for constructing an instrument with a covered bore for subcutaneous implantation
US20110015561 *Mar 15, 2009Jan 20, 2011Takayuki AkahoshiPhacoemulsification Needle
US20120271250 *Jun 29, 2012Oct 25, 2012Boston Scientific Scimed, Inc.Medical needles and electrodes with improved bending stiffness
US20140041496 *Oct 18, 2013Feb 13, 2014Smiths Medical Asd, Inc.Catheter assembly with seal member
USD794183 *Sep 11, 2014Aug 8, 2017Medimop Medical Projects Ltd.Dual ended liquid transfer spike
EP0468565A2 *Jul 5, 1991Jan 29, 1992Akzo N.V.Piercing and sampling probe
EP0468565A3 *Jul 5, 1991May 20, 1992Akzo N.V.Piercing and sampling probe
EP1342448A1 *Feb 24, 2003Sep 10, 2003Bayer Healthcare, LLCMinimum invasive optical format with integrated lance
EP2269510A2 *Feb 24, 2003Jan 5, 2011Bayer Healthcare LLCMinimum invasive optical format with integrated lance
EP2269510A3 *Feb 24, 2003Nov 9, 2011Bayer Healthcare LLCMinimum invasive optical format with integrated lance
WO1996033654A1 *Apr 19, 1996Oct 31, 1996Hibbeln John FMedical instrument with improved ultrasonic visibility
Classifications
U.S. Classification604/272, D24/112
International ClassificationA61M5/32
Cooperative ClassificationA61M5/3286
European ClassificationA61M5/32D