CA2424955A1 - Prewarning device for instillation of medical liquid - Google Patents

Prewarning device for instillation of medical liquid Download PDF

Info

Publication number
CA2424955A1
CA2424955A1 CA 2424955 CA2424955A CA2424955A1 CA 2424955 A1 CA2424955 A1 CA 2424955A1 CA 2424955 CA2424955 CA 2424955 CA 2424955 A CA2424955 A CA 2424955A CA 2424955 A1 CA2424955 A1 CA 2424955A1
Authority
CA
Canada
Prior art keywords
tubular needle
medical liquid
clamp
float
instillation
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.)
Granted
Application number
CA 2424955
Other languages
French (fr)
Other versions
CA2424955C (en
Inventor
Hsiao-Yun Emma Chang
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
Priority to CA 2424955 priority Critical patent/CA2424955C/en
Publication of CA2424955A1 publication Critical patent/CA2424955A1/en
Application granted granted Critical
Publication of CA2424955C publication Critical patent/CA2424955C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/40—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 with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/162—Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube
    • 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
    • A61M5/36—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 with means for eliminating or preventing injection or infusion of air into body
    • A61M5/365—Air detectors
    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

A prewarning device for instillation of medical liquid includes a throttling cylinder having a tubular needle connected to an open top thereof. A pointed head portion of the tubular needle is inserted into a medical liquid bottle for the medical liquid to flow into the throttling cylinder via the tubular needle. A
portion of the tubular needle between the head portion and the throttling cylinder is transparent for a clamp to clamp therearound. A sensor is provided on the clamp to connect to a warning unit via a wire. The tubular needle defines a downward tapered inner space to receive a float therein. When the medical liquid bottle becomes empty, the float lowers in the tubular needle and is sensed by the sensor for the latter to actuate the warning unit to sound. The lowered float also blocks up the tubular needle to stop air from passing therethrough.
CA 2424955 2003-04-10 2003-04-10 Prewarning device for instillation of medical liquid Expired - Fee Related CA2424955C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2424955 CA2424955C (en) 2003-04-10 2003-04-10 Prewarning device for instillation of medical liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2424955 CA2424955C (en) 2003-04-10 2003-04-10 Prewarning device for instillation of medical liquid

Publications (2)

Publication Number Publication Date
CA2424955A1 true CA2424955A1 (en) 2004-10-10
CA2424955C CA2424955C (en) 2007-07-17

Family

ID=33136673

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2424955 Expired - Fee Related CA2424955C (en) 2003-04-10 2003-04-10 Prewarning device for instillation of medical liquid

Country Status (1)

Country Link
CA (1) CA2424955C (en)

Also Published As

Publication number Publication date
CA2424955C (en) 2007-07-17

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed