US2884924A - Drip meter - Google Patents

Drip meter Download PDF

Info

Publication number
US2884924A
US2884924A US60003156A US2884924A US 2884924 A US2884924 A US 2884924A US 60003156 A US60003156 A US 60003156A US 2884924 A US2884924 A US 2884924A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
draw
tube
opening
cap
projection
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
Inventor
John E B Shaw
Original Assignee
American Sterllizer Company
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
Grant date

Links

Images

Classifications

    • 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
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/162Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • 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
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/162Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • A61M2005/1623Details of air intake
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/86292System with plural openings, one a gas vent or access opening
    • Y10T137/86324Tank with gas vent and inlet or outlet
    • Y10T137/86332Vent and inlet or outlet in unitary mounting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/87153Plural noncommunicating flow paths

Description

May 5, 1959 .1. E. B. SHAW DRIP METER Filed July 25, 1956 2 ,N VEIY TOR.

a EL .3

This invention is a universal drip meter for dispens-' ing intravenous solutions which can be used with flasks having either vented or non-vented closures.

In the drawing, Fig. l is a section through a drip meter applied to a vented stopper; Fig. 2 is a similar view with a non-vented stopper, and Fig. 3 is an enlarged section through the drip meter.

* United States Patent In Fig. i there is shown a flask 1 having a stopper or closure 2 having an opening 3 carrying a vent tube 4, Y which in the dispensing position projects above the liquid ievel 5 in'the flask and also having an opening 6 for 'eceiving a draw oif tube 7. This is the so-called vented .osure in common use for dispensing intravenous solutions. In Fig. 2 the flask has a mouth 8 over which is telescoped a cup-shaped closure 9 having in its bottom wall an opening 10 for receiving a draw oif tube and also having on its bottom wall a pouring lip 11. The closure 9 does not have a separate opening for a vent tube and accordingly is a non-vented closure. The parts so far described are or may be of common construction.

In accordance with this invention, a drip meter is provided which can be universally used, either with the vented closure of Fig. 1 or the non-vented closure of Fig. 2. The drip meter consists of two molded plastic pieces, a cap 12 and a body 13 at the lower end of which is fixed a flexible plastic tube 14. At the center of the cap is the draw oif tube 7 which fits snugly in the draw oil opening 6 in the stopper 2. The lower end 15 of the draw off tube 7 projects below the cap into the upper end of the body 13 and provides the sole connection for feeding the fluid from the flask to the tube 14. As is customary in drip meters, the tube 7 terminates well above the bottom of the body 13 so the fluid drops through space into the lower end of the body. Adjacent the lower end of the draw oi! tube 7 is a cylindrical section 16 of large enough diameter to fit snugly in the opening 10 in the non-vented closure 9. In the cylindrical section 16 is a capillary passageway 17 which extends alongside of the draw of! tube 7 and leads into a conical passageway 18 extending out one side of the cap 12. When the drip meter is in place in the nonvented closure 9, the cylindrical section 16 is pressed into the opening 10 until the outer surface 18 of the cap bottoms on a shoulder 19. In this position the upper end of the capillary opening 17 is in contact with the fluid in the flask and the conical opening 18 is outside the flask so that air can flow through the opening 18 into the capillary 17 to take the place of the fluid dispensed through the draw otf tube 7. The conical opening 18 may be packed with sterile oiled cotton which will repel any fluid and prevent blocking of the flow of air through the capillary 17. The conical opening 18 is also useful when fluid is to be fed into the flask 1 from another flask, in which case the dispensing tubing 14 is provided with a conical fitting 20 which can be litted into the conical opening 18. Of course before Patented May 5, "1959 feeding into the flask, the oiled cotton would have to be removed.

When the drip meter is used with the vented closure, the draw off tube 7 is inserted in the opening 6 until a shoulder 21 bottoms on the outside of the closure. This establishes the fluid connection feeding fluid into the body 13 from which it flows to the dispensing tube 14. When used with the vented closure, the capillary 17 is entirely outside the stopper. When used with the non-vented closure, the cylindrical section 16 is inserted in the opening 10 until the shoulder 19 bottoms on the stopper. In this position the drawing oil tube is,in fluid feeding position and the upper end of the capillary 17 conducts air into the flask to take the place of the fluid fed from the draw otf tube.

What is claimed as new is:

1. A universal drip meter comprising a hollow body having dispensing tubing leading from its lower end, a cap sealed to the top of the body having a draw ofl tube extending through the cap with its upper end receivable in the draw ofi opening of a vented closure and its lower end terminating above the bottom of the body, a cylindrical projection at the center of the cap integral with the draw oif tube, said projection being of greater diameter and shorter than the draw all tube and of lesser diameter than the cap and being receivable in the draw otf opening of a non-vented closure, a shoulder at the lower end of the projection limiting the insertion of the projection into the draw off opening of the non-vented closure, said projection having a capillary venting passageway leading from the upper end of the projection to below said shoulder, and means providing a lateral passageway leading from the venting passageway to the outside of the cap below said shoulder.

2. A universal drip meter for dispensing intravenous liquids which can be used with flasks having either vented or non-vented closures comprising a hollow body having dispensing tubing leading from its lower end, a cap sealed to the top of the body having a draw off tube extending through the cap with its upper end projecting above the cap and receivable in the draw ofi' opening of a vented closure and having its lower end projecting below the cap and terminating above the bottom of the body, a cylindrical projection at the center of the cap and sealed to the draw off tube midway between its ends, said projection being of greater diameter and shorter than the draw oli tube and of lesser diameter than the cap and being receivable in the draw olf opening of a non-vented closure, a shoulder at the lower end of the projection limiting the insertion of the projection into the non-vented closure, and said projection having a capillary venting passageway leading from its upper end down through the projection to the atmosphere outside of the cap below said shoulder.

3. A universal drip meter comprising a hollow body having dispensing tubing leading from its lower end, a cap sealed to the top of the body having a draw off tube extending through the cap with its upper end receivable in the draw oflf opening of a vented closure and with its lower end terminating above the bottom of the body, a cylindrical projection at the center of the cap integral with the draw off tube, said projection being of greater diameter and shorter than the draw ofi tube, said projection being receivable in the draw off opening of a non-vented closure, a shoulder at the lower end of the projection limiting the insertion into the draw 06 opening of the non-vented closure, said projection having a capillary venting passageway leading from the upper end of the projection down through the projection, means providing an enlarged lateral passageway leading from the venting passageway to the outside of the cap below said shoulder, and a water repellent air pervious packing within said lateral passageway.

4. A universal drip meter comprising a hollow body having dispensing tubing leading from its lower end, a cap sealed to the top of the body having a draw all tube extending through the cap with its upper end receivable in the draw on opening of a vented closure and with its lower end terminating above the bottom of the body, a cylindrical projection at the center of the cap integral with the draw off tube, said projection being of greater diameter and shorter than the draw off tube, said projection being receivable in the draw 01f opening of a non-vented closure, a shoulder at the lower end of the projection limiting the insertion into the draw off opening venting passageway to the outside of the cap below said shoulder.

References Cited in the file of this patent UNITED STATES PATENTS 2,168,270 Paisley et al. Aug. 1, 1939 2,473,153 Lager June 14, 1949 2,770,234 Nesset et a] Nov. 13, 1956

US2884924A 1956-07-25 1956-07-25 Drip meter Expired - Lifetime US2884924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2884924A US2884924A (en) 1956-07-25 1956-07-25 Drip meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2884924A US2884924A (en) 1956-07-25 1956-07-25 Drip meter

Publications (1)

Publication Number Publication Date
US2884924A true US2884924A (en) 1959-05-05

Family

ID=24402095

Family Applications (1)

Application Number Title Priority Date Filing Date
US2884924A Expired - Lifetime US2884924A (en) 1956-07-25 1956-07-25 Drip meter

Country Status (1)

Country Link
US (1) US2884924A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050061A (en) * 1957-05-29 1962-08-21 Baxter Laboratories Inc Parenteral solution equipment
US3064653A (en) * 1959-06-04 1962-11-20 Baxter Don Inc Catheter for an administration set
US3092106A (en) * 1958-08-04 1963-06-04 Cutter Lab Administration equipment
US3316908A (en) * 1964-04-14 1967-05-02 Burron Medical Prod Inc Intravenous injection apparatus
US3405723A (en) * 1966-06-13 1968-10-15 American Hospital Supply Corp Parenteral liquid container with air tube
US3484849A (en) * 1966-07-02 1969-12-16 Gruenenthal Chemie Auxiliary transfer device
US3653839A (en) * 1970-07-06 1972-04-04 Henry Valve Co Field test kit reagent transferring system and method for using same
US3783895A (en) * 1971-05-04 1974-01-08 Sherwood Medical Ind Inc Universal parenteral fluid administration connector
US3822700A (en) * 1973-03-16 1974-07-09 M Pennington Intravenous solution dispenser
US3846518A (en) * 1972-06-19 1974-11-05 American Hospital Supply Corp Port system for medical humidifier container
US3868965A (en) * 1973-07-03 1975-03-04 United States Surgical Corp Drop former for intravenous set
US3941126A (en) * 1974-08-08 1976-03-02 Dietrich Joseph W Apparatus for long term intravenous administration of diluted incompatible multiple medications
US3993068A (en) * 1974-07-13 1976-11-23 Transcodan Sven Husted-Andersen Piercing cannula of infusion and transfusion instruments
US4334535A (en) * 1980-08-12 1982-06-15 Cutter Laboratories, Inc. Conduit device for rapid priming and flow of liquid
EP0226718A2 (en) * 1985-12-13 1987-07-01 Becton Dickinson and Company Parenteral fluid administration set
US4998926A (en) * 1985-12-13 1991-03-12 Becton, Dickinson And Company Parenteral fluid administration set

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2168270A (en) * 1936-11-21 1939-08-01 Nat Drug Co Hypodermic-injection apparatus
US2473153A (en) * 1947-08-22 1949-06-14 Continental Pharmacal Company Blood filter
US2770234A (en) * 1954-04-05 1956-11-13 Baxter Laboratories Inc Parenteral administration of liquids

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2168270A (en) * 1936-11-21 1939-08-01 Nat Drug Co Hypodermic-injection apparatus
US2473153A (en) * 1947-08-22 1949-06-14 Continental Pharmacal Company Blood filter
US2770234A (en) * 1954-04-05 1956-11-13 Baxter Laboratories Inc Parenteral administration of liquids

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050061A (en) * 1957-05-29 1962-08-21 Baxter Laboratories Inc Parenteral solution equipment
US3092106A (en) * 1958-08-04 1963-06-04 Cutter Lab Administration equipment
US3064653A (en) * 1959-06-04 1962-11-20 Baxter Don Inc Catheter for an administration set
US3316908A (en) * 1964-04-14 1967-05-02 Burron Medical Prod Inc Intravenous injection apparatus
US3405723A (en) * 1966-06-13 1968-10-15 American Hospital Supply Corp Parenteral liquid container with air tube
US3484849A (en) * 1966-07-02 1969-12-16 Gruenenthal Chemie Auxiliary transfer device
US3653839A (en) * 1970-07-06 1972-04-04 Henry Valve Co Field test kit reagent transferring system and method for using same
US3783895A (en) * 1971-05-04 1974-01-08 Sherwood Medical Ind Inc Universal parenteral fluid administration connector
US3846518A (en) * 1972-06-19 1974-11-05 American Hospital Supply Corp Port system for medical humidifier container
US3822700A (en) * 1973-03-16 1974-07-09 M Pennington Intravenous solution dispenser
US3868965A (en) * 1973-07-03 1975-03-04 United States Surgical Corp Drop former for intravenous set
US3993068A (en) * 1974-07-13 1976-11-23 Transcodan Sven Husted-Andersen Piercing cannula of infusion and transfusion instruments
US3941126A (en) * 1974-08-08 1976-03-02 Dietrich Joseph W Apparatus for long term intravenous administration of diluted incompatible multiple medications
US4334535A (en) * 1980-08-12 1982-06-15 Cutter Laboratories, Inc. Conduit device for rapid priming and flow of liquid
EP0226718A2 (en) * 1985-12-13 1987-07-01 Becton Dickinson and Company Parenteral fluid administration set
EP0226718A3 (en) * 1985-12-13 1988-06-08 Becton, Dickinson And Company Parenteral fluid administration set
US4952210A (en) * 1985-12-13 1990-08-28 Becton, Dickinson And Company Parenteral fluid administration set
US4998926A (en) * 1985-12-13 1991-03-12 Becton, Dickinson And Company Parenteral fluid administration set

Similar Documents

Publication Publication Date Title
US3456650A (en) Blowback eliminator for collapsible tube
US3493146A (en) Liquid container with dispensing valve
US3316908A (en) Intravenous injection apparatus
US3146806A (en) Dispensing container for liquids
US3334628A (en) Vacuum indicating connection for surgical wound-closing apparatus
US3478743A (en) Closed urinary drainage system
US3246807A (en) Containers
US3330281A (en) Combination syringe and vial mixing container
US3379136A (en) Liquid dispenser
US3458090A (en) Fluid dispenser with adjustable stroke pump piston
US3542240A (en) Partially assembled bulk parenteral solution container and adminstration set
US3531009A (en) Cap assembly for instant feeder
US3254809A (en) Dispensing device for tilting container
US3232467A (en) Nursing device
US3323774A (en) Composite closure-drip chamber-valve means unit for administration of liquids
US4312349A (en) Filter device for injectable fluid
US1929247A (en) Syringe equipment and apparatus
US3177870A (en) Secondary administration system
US4548601A (en) Prepackaged, injectable pharmaceutical and hypodermic needle combination
US3872866A (en) Eyewash container supported eyelid engaging device
US4109530A (en) Specimen transfer container
US2574028A (en) Gas container and dispensing means
US3030955A (en) Plastic container
US5833088A (en) Container with closure cap and method of filling containers without gas bubbles
US2867536A (en) Flavor-containing drinking straw