US1336730A - Injection-syringe with protecting-hood - Google Patents

Injection-syringe with protecting-hood Download PDF

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Publication number
US1336730A
US1336730A US309520A US30952019A US1336730A US 1336730 A US1336730 A US 1336730A US 309520 A US309520 A US 309520A US 30952019 A US30952019 A US 30952019A US 1336730 A US1336730 A US 1336730A
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United States
Prior art keywords
hood
protecting
injection
nozzle
syringe
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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
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US309520A
Inventor
Court Georges Theodore
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.)
HOFFMANNLA ROCHE CHEMICAL WORK
HOFFMANNLA ROCHE CHEMICAL WORKS
Original Assignee
HOFFMANNLA ROCHE CHEMICAL WORK
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.)
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Publication date
Application filed by HOFFMANNLA ROCHE CHEMICAL WORK filed Critical HOFFMANNLA ROCHE CHEMICAL WORK
Priority to US309520A priority Critical patent/US1336730A/en
Application granted granted Critical
Publication of US1336730A publication Critical patent/US1336730A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3107—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle for needles
    • A61M2005/311—Plugs, i.e. sealing rods or stylets closing the bore of needles

Definitions

  • the object of the present invention is a new method for the safe and durable fixing of the protecting hood to the upper end of the reservoir which forms a sort of nozzle and shall be called by this name in the following.
  • a ferrule is fastened around the lower end of the protecting hood; it consists of a flexible material, for instance a soft metal, and is partly pressed into the grooves of the nozzle. ⁇ Vhen using the syringe, the ferrule is unrolled and then the protecting hood can be moved.
  • the ferrule may consist of a strip of metal, for instance tin, which is opened by unrolling, or of an endless band for instance of aluminium which is removed from the head of the tube by cutting through.
  • the protecting hood may preferably consist of glass.
  • Figure l represents a side view of the instrument
  • a vertical cut designates the tube containing the liquid, /a that part which has been described as nozzle, m the lid of metal, which, immediately before use, is pierced by means of the stylet s, passing through the injection needle 91.
  • r designates the grooves on the bottom of the nozzle.
  • the protecting tube 5 is kept in place by means of a strip of metal consisting for instance of tin and wrapped three times around it ('w 'w 11: set into the grooves 1*.
  • the protecting hood By unrolling or cutting through the strip of metal the protecting hood can be moved. The latter is then pressed a ainst the nozzle and the stylet perfol'ates tie lid of metal. The protecting hood and stylet are pulled off and the syringe is ready for use.
  • contents of the reservoir are carried to the point of the needle by compressing the tube.
  • An injection syringe comprising a reservoir, ahollow injection needle fitted thereon. means whereby communication between said reservoir and needle is cut ofl, a protecting hood normally covering the needle, a stylet carried by said hood and extending through said needle and arranged to be actuated by said hood to pierce said means whereby communication between said reservoir and needle is established and a removable convolute fastening band extending about said hood whereby the latter is fixed in operative position.
  • An injection syringe comprising a reservoir, a nozzle fitted thereon and provided with a recess. a hollow injection needle car ried by said nozzle, means whereby communication between said nozzle and reservoir is cut off, a protecting hood normally covering the needle, a stylet carried by said hood and extending through said needle and arranged to be actuated by said hood to pierce said means whereby communication between said nozzle and reservoir is established, and a removable fastening device extending about said hood and projecting into said recess whereby said hood is fixed upon said nozzle.
  • An injection syringe comprising a reservoir. a nozzle fitted thereon and provided with an annular groove, a hollow injection needle carried by said nozzle, means whereby communication between said nozzle and re srality of convolutions and projecting into 10 ervoir 1s cut off, a protecting hood normally said annular groove whereby said hood is covering the needle, a stylet carried by said fixed upon said nozzle.

Description

G. T.- COURT.
INJECTION SYRINGE WITH PROTECTING HOOD.
APPLICATION FILED JULY 8.1919.
1 ,336,730 7 Patented Apr. 13, 1920.
GEORGES THEODORE COURT, OF BASEL, SW
LA ROCHE CHEMICAL WORKS, OF NEW Y ITZERLAND. ASSIGNOR TO THE HOFFMANN- ORK, N. Y., A CORPORATION OF NEW YORK.
IN J ECTION-SYRIN GE WITH PROTECTING-HOOD.
Specification of Letters Patent.
Patent ed 'A pr. 13, 1920.
Application filed July 8. 1919. Serial No. 309,520.
'1 b all whom it may concern Be it known that- I, (inouons THnononn Couu'r, a citizen of Switzerland, and a resident of Basel, Switzerland, have invented certain new and useful Improvements in Injection-Syringes with Protecting-Hoods, of which the following is a specification.
The method of introducing medicines into the human body by injection stands in ever increasing favor with the medical profession and in consequence thereof there has sprung up the need for an instrument at any time ready for use and allowing perfectly sterile injection instead of the ordinary hypodermic syringe, which required careful and tedious cleansing and sterilizing before being used. The combination of a compressible tube, serving as reservoir for the liquid, with a hollow injection needle constitutes, in principle, such an instrument. The problem to be solved for the further perfection of this instrument was to find suitable means for warranting absolute sterility of. the liquid as well as of all parts coming into contact with the field of injection. Vith this idea in view the injection needle was protected by a hood and the liquid isolated by means of an indifferent neutral mass or by a lid of metal. A safe and durable fixing of the protecting hood is of great importance for absolute sterility. If the protecting hood is not very securely fixed it will loosen on being transported from one place to another and then the injection needle will no longer be per fectly sterile.
The object of the present invention is a new method for the safe and durable fixing of the protecting hood to the upper end of the reservoir which forms a sort of nozzle and shall be called by this name in the following. For this purpose a ferrule is fastened around the lower end of the protecting hood; it consists of a flexible material, for instance a soft metal, and is partly pressed into the grooves of the nozzle. \Vhen using the syringe, the ferrule is unrolled and then the protecting hood can be moved. The ferrule may consist of a strip of metal, for instance tin, which is opened by unrolling, or of an endless band for instance of aluminium which is removed from the head of the tube by cutting through. The protecting hood may preferably consist of glass.
One example of the invention is illustrated in the attached drawings. Figure l represents a side view of the instrument, Fig. 2
a vertical cut. 7) designates the tube containing the liquid, /a that part which has been described as nozzle, m the lid of metal, which, immediately before use, is pierced by means of the stylet s, passing through the injection needle 91. r designates the grooves on the bottom of the nozzle. The protecting tube 5 is kept in place by means of a strip of metal consisting for instance of tin and wrapped three times around it ('w 'w 11: set into the grooves 1*.
To use the instrument one proceeds as follows: a
By unrolling or cutting through the strip of metal the protecting hood can be moved. The latter is then pressed a ainst the nozzle and the stylet perfol'ates tie lid of metal. The protecting hood and stylet are pulled off and the syringe is ready for use. The
contents of the reservoir are carried to the point of the needle by compressing the tube.
I claim:
1. An injection syringe comprising a reservoir, ahollow injection needle fitted thereon. means whereby communication between said reservoir and needle is cut ofl, a protecting hood normally covering the needle, a stylet carried by said hood and extending through said needle and arranged to be actuated by said hood to pierce said means whereby communication between said reservoir and needle is established and a removable convolute fastening band extending about said hood whereby the latter is fixed in operative position.
2. An injection syringe comprising a reservoir, a nozzle fitted thereon and provided with a recess. a hollow injection needle car ried by said nozzle, means whereby communication between said nozzle and reservoir is cut off, a protecting hood normally covering the needle, a stylet carried by said hood and extending through said needle and arranged to be actuated by said hood to pierce said means whereby communication between said nozzle and reservoir is established, and a removable fastening device extending about said hood and projecting into said recess whereby said hood is fixed upon said nozzle.
An injection syringe comprising a reservoir. a nozzle fitted thereon and provided with an annular groove, a hollow injection needle carried by said nozzle, means whereby communication between said nozzle and re srality of convolutions and projecting into 10 ervoir 1s cut off, a protecting hood normally said annular groove whereby said hood is covering the needle, a stylet carried by said fixed upon said nozzle.
'hood and extending through said needle and In witness whereof I have hereunto set arranged to be actuated by said hood to my hand.
pierce said means whereby communication GEORGES THEODORE COURT.
between said nozzle and reservoir is estab- Witnesses: lished and a removable band of flexible soft ALB. A. HOFFMAN,
material extending about said hood in a plu- HEINRICH HUBLI.
US309520A 1919-07-08 1919-07-08 Injection-syringe with protecting-hood Expired - Lifetime US1336730A (en)

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US309520A US1336730A (en) 1919-07-08 1919-07-08 Injection-syringe with protecting-hood

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676591A (en) * 1951-03-27 1954-04-27 Fox Dorothy Brown Hypodermic unit
US3223289A (en) * 1961-11-24 1965-12-14 Bouet Bernard Dispensing devices
US3908638A (en) * 1972-06-14 1975-09-30 Burroughs Wellcome Co Blood sampling device
US4013073A (en) * 1975-05-14 1977-03-22 James Robert Cunningham Dispensing device
EP3226954A4 (en) * 2014-12-02 2018-10-31 Merit Medical Systems, Inc. Distally oriented needle obturator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676591A (en) * 1951-03-27 1954-04-27 Fox Dorothy Brown Hypodermic unit
US3223289A (en) * 1961-11-24 1965-12-14 Bouet Bernard Dispensing devices
US3908638A (en) * 1972-06-14 1975-09-30 Burroughs Wellcome Co Blood sampling device
US4013073A (en) * 1975-05-14 1977-03-22 James Robert Cunningham Dispensing device
EP3226954A4 (en) * 2014-12-02 2018-10-31 Merit Medical Systems, Inc. Distally oriented needle obturator

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