US2830587A - Hypodermic needles - Google Patents

Hypodermic needles Download PDF

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Publication number
US2830587A
US2830587A US48447355A US2830587A US 2830587 A US2830587 A US 2830587A US 48447355 A US48447355 A US 48447355A US 2830587 A US2830587 A US 2830587A
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needle
shaft
section
plane
portion
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Everett Samuel James
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Everett Samuel James
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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
    • A61M5/3286Needle tip design, e.g. for improved penetration

Description

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

US2830587A 1954-02-01 1955-01-27 Hypodermic needles Expired - Lifetime US2830587A (en)

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Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081770A (en) * 1960-09-21 1963-03-19 John M Hunter Surgical instrument
US3090384A (en) * 1960-04-15 1963-05-21 Mfg Process Lab Inc Needle
US3633580A (en) * 1967-01-18 1972-01-11 Knox Lab Inc Hypodermic needle
US3955558A (en) * 1974-11-04 1976-05-11 Medcom, Inc. Instrument for spinal taps
US4565545A (en) * 1982-06-04 1986-01-21 Terumo Kabushiki Kaisha Catheter insertion device
EP0468565A2 (en) * 1990-07-23 1992-01-29 Akzo N.V. Piercing and sampling probe
WO1996033654A1 (en) * 1995-04-24 1996-10-31 Hibbeln John F Medical instrument with improved ultrasonic visibility
US5607401A (en) * 1991-09-03 1997-03-04 Humphrey; Bruce H. Augmented polymeric hypodermic devices
US5938635A (en) * 1996-12-30 1999-08-17 Kuhle; William G. Biopsy needle with flared tip
US6042574A (en) * 1998-03-11 2000-03-28 O'halloran; Gerard Oval ventilation ear tube
US6056772A (en) * 1993-02-04 2000-05-02 Bonutti; Peter M. Method and apparatus for positioning a suture anchor
US6338730B1 (en) * 1993-02-04 2002-01-15 Peter M. Bonutti Method of using expandable cannula
US6551289B1 (en) * 1999-09-14 2003-04-22 Dr. Japan Co., Ltd. Outer needle of anesthetic needle assembly for epidural
EP1342448A1 (en) * 2002-03-05 2003-09-10 Bayer Healthcare, LLC Minimum invasive optical format with integrated lance
US20030181800A1 (en) * 2002-03-20 2003-09-25 Bonutti Peter M. Methods of securing body tissue
US6843783B2 (en) * 2000-09-14 2005-01-18 Terumo Kabushiki Kaisha Injection needle and injection apparatus
US20060206111A1 (en) * 2005-03-10 2006-09-14 Boston Scientific Scimed, Inc. Medical needles and electrodes with improved bending stiffness
US20060206116A1 (en) * 2003-05-07 2006-09-14 Yeung Jeffrey E Injection device for the invertebral disc
US20060241695A1 (en) 2000-03-13 2006-10-26 Bonutti Peter M Method of using ultrasonic vibration to secure body tissue with fastening element
US20060253065A1 (en) * 2000-08-24 2006-11-09 Bardy Gust H Instrument for implanting sensors and solid materials in a subcutaneous location and method thereof
US20070213636A1 (en) * 2004-02-06 2007-09-13 Kuriger Rex J Method and apparatus for measuring an analyte in a body fluid
US20070249992A1 (en) * 2000-08-24 2007-10-25 Bardy Gust H Subcutaneous implantation instrument with dissecting tool and method of construction
US20090099535A1 (en) * 2005-06-20 2009-04-16 Yuean Wang Disposable Needle for Syringes and Infusions and the Manufacture Thereof
US20090112258A1 (en) * 2007-10-25 2009-04-30 Bodo Kreidler Needle Attachment For A Surgical Sewing Instrument
US20100324579A1 (en) * 2000-08-24 2010-12-23 Bardy Gust H Instrument With A Covered Bore For Subcutaneous Implantation
US20100324578A1 (en) * 2000-08-24 2010-12-23 Bardy Gust H Instrument With A Two-Part Plunger For Subcutaneous Implantation
US20100331868A1 (en) * 2000-08-24 2010-12-30 Bardy Gust H Method For Constructing An Instrument With A Two-Part Plunger For Subcutaneous Implantation
US20100331874A1 (en) * 2000-08-24 2010-12-30 Bardy Gust H Method for constructing an instrument with a covered bore for subcutaneous implantation
US20110015561A1 (en) * 2008-10-31 2011-01-20 Takayuki Akahoshi Phacoemulsification Needle
US8496657B2 (en) 2006-02-07 2013-07-30 P Tech, Llc. Methods for utilizing vibratory energy to weld, stake and/or remove implants
US8617185B2 (en) 2007-02-13 2013-12-31 P Tech, Llc. Fixation device
US20140041496A1 (en) * 2010-06-25 2014-02-13 Smiths Medical Asd, Inc. Catheter assembly with seal member
US8808329B2 (en) 1998-02-06 2014-08-19 Bonutti Skeletal Innovations Llc Apparatus and method for securing a portion of a body
US8814902B2 (en) 2000-05-03 2014-08-26 Bonutti Skeletal Innovations Llc Method of securing body tissue
US8845687B2 (en) 1996-08-19 2014-09-30 Bonutti Skeletal Innovations Llc Anchor for securing a suture
US8845699B2 (en) 1999-08-09 2014-09-30 Bonutti Skeletal Innovations Llc Method of securing tissue
US9060767B2 (en) 2003-04-30 2015-06-23 P Tech, Llc Tissue fastener and methods for using same
US9089323B2 (en) 2005-02-22 2015-07-28 P Tech, Llc Device and method for securing body tissue
US9138222B2 (en) 2000-03-13 2015-09-22 P Tech, Llc Method and device for securing body tissue
US9173647B2 (en) 2004-10-26 2015-11-03 P Tech, Llc Tissue fixation system
US9173650B2 (en) 2006-02-07 2015-11-03 P Tech, Llc Methods and devices for trauma welding
US9226828B2 (en) 2004-10-26 2016-01-05 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9271766B2 (en) 2004-10-26 2016-03-01 P Tech, Llc Devices and methods for stabilizing tissue and implants
US9399116B2 (en) 2010-06-25 2016-07-26 Smiths Medical Asd, Inc. Method of making catheter assembly with seal member
US9439642B2 (en) 2006-02-07 2016-09-13 P Tech, Llc Methods and devices for utilizing bondable materials
US9463012B2 (en) 2004-10-26 2016-10-11 P Tech, Llc Apparatus for guiding and positioning an implant
USD794183S1 (en) * 2014-03-19 2017-08-08 Medimop Medical Projects Ltd. Dual ended liquid transfer spike
US9750496B2 (en) 2002-08-27 2017-09-05 P Tech, Llc System for securing a portion of a body
US9770238B2 (en) 2001-12-03 2017-09-26 P Tech, Llc Magnetic positioning apparatus
USD801522S1 (en) 2015-11-09 2017-10-31 Medimop Medical Projects Ltd. Fluid transfer assembly
US9801786B2 (en) 2013-04-14 2017-10-31 Medimop Medical Projects Ltd. Drug container closure for mounting on open-topped drug container to form drug reconstitution assemblage for use with needleless syringe
US9839580B2 (en) 2012-08-26 2017-12-12 Medimop Medical Projects, Ltd. Liquid drug transfer devices
US9888916B2 (en) 2004-03-09 2018-02-13 P Tech, Llc Method and device for securing body tissue
US9943463B2 (en) 2013-05-10 2018-04-17 West Pharma. Services IL, Ltd. Medical devices including vial adapter with inline dry drug module
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US2601580A (en) * 1951-01-24 1952-06-24 Bronislow J Yanus Hypodermic needle
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Cited By (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090384A (en) * 1960-04-15 1963-05-21 Mfg Process Lab Inc Needle
US3081770A (en) * 1960-09-21 1963-03-19 John M Hunter Surgical instrument
US3633580A (en) * 1967-01-18 1972-01-11 Knox Lab Inc Hypodermic needle
US3955558A (en) * 1974-11-04 1976-05-11 Medcom, Inc. Instrument for spinal taps
US4565545A (en) * 1982-06-04 1986-01-21 Terumo Kabushiki Kaisha Catheter insertion device
EP0468565A3 (en) * 1990-07-23 1992-05-20 Akzo N.V. Piercing and sampling probe
EP0468565A2 (en) * 1990-07-23 1992-01-29 Akzo N.V. Piercing and sampling probe
US5607401A (en) * 1991-09-03 1997-03-04 Humphrey; Bruce H. Augmented polymeric hypodermic devices
US6613038B2 (en) 1993-02-04 2003-09-02 Bonutti 2003 Trust-A Method of using expandable cannula
US20020087189A1 (en) * 1993-02-04 2002-07-04 Bonutti Peter M. Method and apparatus for positioning a suture anchor
US6942684B2 (en) 1993-02-04 2005-09-13 Bonutti Ip, Llc Method and apparatus for positioning an anchor member
US6056772A (en) * 1993-02-04 2000-05-02 Bonutti; Peter M. Method and apparatus for positioning a suture anchor
US6338730B1 (en) * 1993-02-04 2002-01-15 Peter M. Bonutti Method of using expandable cannula
US6364897B1 (en) 1993-02-04 2002-04-02 Peter M. Bonutti Method and apparatus for positioning a suture anchor
US6814715B2 (en) 1993-02-04 2004-11-09 Bonutti 2003 Trust A Expandable cannula
US20080051734A1 (en) * 1993-02-04 2008-02-28 Bonutti Peter M Expandable cannula
US20050240227A1 (en) * 1993-02-04 2005-10-27 Bonutti Peter M Method and apparatus for positioning an anchor member
WO1996033654A1 (en) * 1995-04-24 1996-10-31 Hibbeln John F Medical instrument with improved ultrasonic visibility
US8845687B2 (en) 1996-08-19 2014-09-30 Bonutti Skeletal Innovations Llc Anchor for securing a suture
US5938635A (en) * 1996-12-30 1999-08-17 Kuhle; William G. Biopsy needle with flared tip
US8808329B2 (en) 1998-02-06 2014-08-19 Bonutti Skeletal Innovations Llc Apparatus and method for securing a portion of a body
US6042574A (en) * 1998-03-11 2000-03-28 O'halloran; Gerard Oval ventilation ear tube
US8845699B2 (en) 1999-08-09 2014-09-30 Bonutti Skeletal Innovations Llc Method of securing tissue
US6551289B1 (en) * 1999-09-14 2003-04-22 Dr. Japan Co., Ltd. Outer needle of anesthetic needle assembly for epidural
US8747439B2 (en) 2000-03-13 2014-06-10 P Tech, Llc Method of using ultrasonic vibration to secure body tissue with fastening element
US9884451B2 (en) 2000-03-13 2018-02-06 P Tech, Llc Method of using ultrasonic vibration to secure body tissue
US9067362B2 (en) 2000-03-13 2015-06-30 P Tech, Llc Method of using ultrasonic vibration to secure body tissue with fastening element
US20060241695A1 (en) 2000-03-13 2006-10-26 Bonutti Peter M Method of using ultrasonic vibration to secure body tissue with fastening element
US9138222B2 (en) 2000-03-13 2015-09-22 P Tech, Llc Method and device for securing body tissue
US8814902B2 (en) 2000-05-03 2014-08-26 Bonutti Skeletal Innovations Llc Method of securing body tissue
US20060253065A1 (en) * 2000-08-24 2006-11-09 Bardy Gust H Instrument for implanting sensors and solid materials in a subcutaneous location and method thereof
US20070249992A1 (en) * 2000-08-24 2007-10-25 Bardy Gust H Subcutaneous implantation instrument with dissecting tool and method of construction
US8454552B2 (en) 2000-08-24 2013-06-04 Cardiac Science Corporation Method for constructing an instrument with a covered bore for subcutaneous implantation
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US8251946B2 (en) 2000-08-24 2012-08-28 Cardiac Science, Inc. Method for constructing an instrument with a two-part plunger for subcutaneous implantation
US7736330B2 (en) 2000-08-24 2010-06-15 Bardy Gust H Subcutaneous implantation instrument with dissecting tool and method of construction
US7780625B2 (en) * 2000-08-24 2010-08-24 Bardy Gust H Instrument for implanting sensors and solid materials in a subcutaneous location and method thereof
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US20100324578A1 (en) * 2000-08-24 2010-12-23 Bardy Gust H Instrument With A Two-Part Plunger For Subcutaneous Implantation
US20100331868A1 (en) * 2000-08-24 2010-12-30 Bardy Gust H Method For Constructing An Instrument With A Two-Part Plunger For Subcutaneous Implantation
US20100249696A1 (en) * 2000-08-24 2010-09-30 Bardy Gust H Straight cutting tip for a full large bore subcutaneous implantation instrument
US7632253B2 (en) 2000-09-14 2009-12-15 Terumo Kabushiki Kaisha Injection needle and injection apparatus
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US20060206111A1 (en) * 2005-03-10 2006-09-14 Boston Scientific Scimed, Inc. Medical needles and electrodes with improved bending stiffness
US20090099535A1 (en) * 2005-06-20 2009-04-16 Yuean Wang Disposable Needle for Syringes and Infusions and the Manufacture Thereof
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