US2016631A - Hypodermic syringe - Google Patents

Hypodermic syringe Download PDF

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Publication number
US2016631A
US2016631A US590740A US59074032A US2016631A US 2016631 A US2016631 A US 2016631A US 590740 A US590740 A US 590740A US 59074032 A US59074032 A US 59074032A US 2016631 A US2016631 A US 2016631A
Authority
US
United States
Prior art keywords
needle
mounting
syringe
nozzle
nipple
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US590740A
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English (en)
Inventor
Everett Samuel James
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2016631A publication Critical patent/US2016631A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M2005/341—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub angularly adjustable or angled away from the axis of the injector
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/346—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw

Definitions

  • This invention comprises improvements in hypodermic syringes and in interchangeable needles for use therewith, said syringes being provided with means for securing a needle head-piece to the nozzle part of the syringe.
  • One object of this invention is to provide an inexpensive and simple needle-mounting arrangement whereby a satisfactory tight joint between the needle and syringe and adequate support for the needle are ensured.
  • a further object of the invention is to provide a needlemounting arrangement which permits of :the satisfactory bending of needles by the user to suit particular purposes.
  • a third object is to avoid contaminatory contact between the needle and nozzle part or clamping part of the syringe during insertion or'removal of a needle.
  • Figure l is a longitudinal section of one-embodiment of syringe and needle
  • Figure 2 a longitudinal section, at right angles to Figure 1, of a clamping nipple
  • Figures 3 and 4 are elevations of alternative embodiments
  • Figure 5 is an elevation of a bent needle
  • Figures 68 are longitudinal sections of modified forms of needle
  • Figures 9 and 10 are front and side elevations of an alternative form of clamping nipple.
  • the hypodermic needle I is provided at its blunt end with a mounting of p-lasticmetal, such as pewter, consisting of a head portion 2 and an elongated neck portion 3 of less diameter than said head portion.
  • a substantial lengthof the needle I is permanently embedded in the mounting which is preferably formed upon and attached to said needle by a die casting, die pressing or like operation.
  • the head 2 is shaped to fit in a complementary lodgement or cavity ,4 in a nipple 5 which is internally. threaded to screw on an externally threaded nozzle part 6.
  • Said head moreover, presents a bevelled shoulder I designed to lodge firmly in the lower part of the cavity 4 and a conical upper p-ortion'8 for abutting against the flat lower end-face 9 of the nozzle 6.
  • the nipple 5 has a lateral aperture consisting of a circular orifice I0 sufficiently large to pass the head 2 and a slot II sufficiently wide to pass the neck 3 into a throat II below the cavity 4.
  • the mounting 2, 3 is inserted laterally in the aperture I0, II, the nipple 5 being in such a position that the nozzle face 9 isclear of the orifice Ill.
  • the head 2 is then moved longitudinally into the cavity 4.
  • the slot I I being of less size than the diameter of the head 2, said head finds a firm lodgement in the cavity 4.
  • the nipple 5 is then screwed on to the nozzle 6 until the upper por- 5 tion 8 of the head is tightly clamped against the nozzle face 9. Owing to the plasticity of the mounting, a perfectly liquid tight joint is obtained. Instead of being fiat, the nozzle face 9 may be conically recessed. 10
  • the blunt end of the needle does not come right through to the upper end of the mounting, but has its canula extended by a passage I2 in the mounting, said passage flaring upwardly from said canula to the bore I3 of the nozzle 6.
  • this flared passage I2 can be produced by inserting a removable tapered core in the blunt end of the needle and casting the mounting around this. Said flared passage facilitates the insertion in the needle of a wire for cleaning the same in. well known manner.
  • the nozzle 6 takes the form of an adaptor internally threaded at I4 so that it can be screwed upon a syringe of existing type to adapt the latter for use with needles I--3 such as have been described.
  • Such adaptors will be comparatively accurately made to ensure a 35 liquid tight joint with the syringe and to prevent loss of injection liquid.
  • the nozzle may form an integral or permanent component of the syringe as shown at 6 in Figures 3 and 4.
  • FIG. 3 illustrates an arrangement embodying a double-ended needle I' for use with a cartridge or phial syringe, such as a so-called Cooks type syringe.
  • a mounting 2, 3- similar to that just described is attached to the needle I at a point between its two sharp ends.
  • the nipple 5 is slotted at I5 and the nozzle 6' at I6 whilst the lower part I! of the syringe body. or cartridge container is rather more widely slotted at I8.
  • a cartridge I9 and end closure 20 are indicated diagrammatically.
  • the mounting 2, 3 is clamped. in position as inthe previous example and the syringe can thenbe employed in the usual fashion. 1
  • the head and neck portions 2, 3 of the mounting are of slightly modified shapes, the aperture III, II and the lodgement 4 being, accordingly, also somewhat modified.
  • the liquid tight joint is, moreover, obtained in a difierent fashion:
  • the upper end of the head 2 is fiat and contacts with the flat end face 9 of the syringe nozzle 6'.
  • the needle I extends right through the mounting and a projecting portion 2
  • the needle I can be mounted on the syringe without it being necessary to pass the needle point through any narrow bore or orifice which might contaminate said point.
  • the needle can be removed without contaminating the syringe or nipple. Consequently a surgeon making many injections, particularly in cases of emergency, can initially sterilize the syringe, insert a needle and make an injection, remove the needle without contaminating the syringe, insert a fresh sterile needle and make a further injection in a perfectly aseptic manner, repeating the operation as often as may be desired without any necessity for re-sterilizing the syringe itself.
  • the rigid and secure manner in which the needle is held obviates any possibility of the needle wabbling or slipping and permits of very accurate incision. No loss of rigidity is experienced where a needle is bent as in Figure 5. Finally a good liquid-tight connection is made between the needle and syringe, escape of the injection liquid and inaccurate dosage being thereby prevented. Moreover the nipple and the syringe nozzle and butt remain clean so that there is little risk of contamination in this way.
  • the needle For some purposes, for example where it is not of essential importance that the needle should be capable of being bent, it may be preferred to make the mounting of harder metal, such as brass, and to provide it, at the end seating against the nozzle-face 9, with a facing or washer of softer plastic metal such as pewter.
  • a facing or washer of softer plastic metal such as pewter.
  • Two forms of such needle are shown in Figures 6 and '7.
  • the needle proper l extends up into the facing 22 of plastic metal, whereas in Figure 7 it only extends a part of the way into the neck portion 3 of the mounting.
  • the head portion 2 of a plastic metal mounting is encased in a shell 23 of harder metal.
  • the nipple might be engaged by toggle or cam means on the syringe body.
  • An arrangement of the latter type is 5 shown in Figures 9 and 10. In this arrangement,
  • a stirrup shaped member 25 having its inturned ends 26 pivotally mounted in the nozzle 6 is bent to form a pair of shoulders 21 arranged to engage under an annular abutment 28 provided on the 10 nipple 5'.
  • the inturned ends 26 pass through slots 30 in the nipple. If the member 25 is turned down to the left in Figure 9, it leaves the nipple free to be, lowered to allow of the lateral insertion of the head portion of a needle mounting through 15 the aperture I0. On turning the member 25 back into the position shown in Figures 9 and 10, the nipple 5' is raised by the camming action of the member 25 on the abutment 28, the seating face of the mounting being thereby forced tightly 20 against the end of the nozzle 6. Owing to the slight resultant crushing at said seating face and to the fact that the abutment 28 bears flat on the substantially horizontal shoulders 21, the arrangement is practically self-locking. 25
  • a hypodermic syringe a nozzle, an interchangeable needle mounting having an axial passage therethrough, said mounting comprising a cylindrical head portion and a slender neck por- 30 tion of plastic metal extending from said head portion and embedding the needle over a substantial portion of its length, said head portion being formed with'an end face adapted for sealing engagement with said nozzle and having a shoulder 35 at the other end surrounding said neck portion, a clamping nipple adjustably secured to said nozzle having an axially disposed cylindrical cavity formed therein sized to fit said head and having a seat formed at the bottom thereof for said 40 shoulder, said nipple having a lateral orifice above said cavity large enough to pass the head portion of said mounting laterally, and having a slot which extends from said orifice to the extremity of said nipple and is in lateral communication 45 with said cavity, said slot being smaller than said orifice and large enough to pass only the slender neck portion of said mounting laterally, whereby
  • a hypodermic syringe a nozzle, a double ended needle, a mounting for said needle in which the latter is embedded intermediate its ends, said mounting comprising a cylindrical head portion and a slender neck portion of plastic metal ex- 00 tending from said head portion toward one'end of the needle, said head portion being formed with an end face adapted for sealing engagement with said nozzle and having a shoulder at the other end surrounding said neck portion, a clamping nipple 5 adjustably secured to said nozzle having an axially disposed cylindrical cavity formed therein sized to fit said head and having a seat formed at the bottom thereof for said shoulder, said nipple having a lateral orifice above said cavity large enough 70 to pass the head portion of said mounting laterally, and having a slot which extends from said orifice to one extremity of said nipple and is in.
  • said slot being smaller than said orifice and large enough 75 to pass only the slender neck portion of said mounting laterally, said nipple having a second slot extending longitudinally from said orifice to the other end of the nipple and large enough to pass the other end of the needle laterally, whereby said head portion must be moved axially into position in said cavity after being passed laterally through said orifice and the walls or said cavity will afford lateral support for said head portion to hold the needle mounting firmly in position during bending of the protruding portion of the needle and use of the syringe.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US590740A 1931-05-04 1932-02-03 Hypodermic syringe Expired - Lifetime US2016631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13124/31A GB377754A (en) 1931-05-04 1931-05-04 Improvements in and connected with hypodermic syringes

Publications (1)

Publication Number Publication Date
US2016631A true US2016631A (en) 1935-10-08

Family

ID=10017253

Family Applications (1)

Application Number Title Priority Date Filing Date
US590740A Expired - Lifetime US2016631A (en) 1931-05-04 1932-02-03 Hypodermic syringe

Country Status (3)

Country Link
US (1) US2016631A (fr)
FR (1) FR736148A (fr)
GB (1) GB377754A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448898A (en) * 1945-04-21 1948-09-07 Marshall L Lockhart Hypodermic needle
US2562129A (en) * 1946-01-23 1951-07-24 Scherer Corp R P Hypodermic syringe
US2583743A (en) * 1944-10-02 1952-01-29 Margaret L Lockhart Hypodermic syringe
US2697437A (en) * 1948-09-10 1954-12-21 Everett Samuel James Hypodermic needle mounting
FR2837735A1 (fr) * 2002-04-02 2003-10-03 Prodonta Porte-outil pour outil deformable en flexion

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564804A (en) * 1947-03-24 1951-08-21 Everett Samuel James Needle mount for hypodermic syringes
US2606556A (en) * 1947-12-31 1952-08-12 Brito Joao V De Hypodermic syringe
US2714888A (en) * 1952-10-03 1955-08-09 Macgregor Instr Company Cartridge syringe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583743A (en) * 1944-10-02 1952-01-29 Margaret L Lockhart Hypodermic syringe
US2448898A (en) * 1945-04-21 1948-09-07 Marshall L Lockhart Hypodermic needle
US2562129A (en) * 1946-01-23 1951-07-24 Scherer Corp R P Hypodermic syringe
US2697437A (en) * 1948-09-10 1954-12-21 Everett Samuel James Hypodermic needle mounting
FR2837735A1 (fr) * 2002-04-02 2003-10-03 Prodonta Porte-outil pour outil deformable en flexion
WO2003082387A3 (fr) * 2002-04-02 2003-12-18 Prodonta S A Porte-outil pour outil deformable en flexion
US20050119612A1 (en) * 2002-04-02 2005-06-02 Alain Delval Tool holder for flexibly-deformable tool
RU2322950C2 (ru) * 2002-04-02 2008-04-27 ВАЙЛЛЬ, Давид Инструментодержатель для гибкодеформируемого инструмента
CN100425301C (zh) * 2002-04-02 2008-10-15 大卫·魏尔 可弯曲变形工具的夹具
US7448868B2 (en) 2002-04-02 2008-11-11 David Weill Tool holder for flexibly-deformable tool

Also Published As

Publication number Publication date
FR736148A (fr) 1932-11-19
GB377754A (en) 1932-08-04

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