ES282376U - Una jeringa - Google Patents

Una jeringa

Info

Publication number
ES282376U
ES282376U ES1984282376U ES282376U ES282376U ES 282376 U ES282376 U ES 282376U ES 1984282376 U ES1984282376 U ES 1984282376U ES 282376 U ES282376 U ES 282376U ES 282376 U ES282376 U ES 282376U
Authority
ES
Spain
Prior art keywords
plunger rod
side wall
stopper
sealing pressure
wall
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
ES1984282376U
Other languages
English (en)
Other versions
ES282376Y (es
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.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
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 Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of ES282376U publication Critical patent/ES282376U/es
Application granted granted Critical
Publication of ES282376Y publication Critical patent/ES282376Y/es
Expired 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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31513—Piston constructions to improve sealing or sliding

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)

Abstract

Una jeringa que comprende un vástago de émbolo y que tiene un cuerpo con una pared interior cilíndrica, un extremo abierto junto al extremo próximo de dicho cuerpo, un extremo distante destinado a recibir a los medios de entrega o suministro de fluido y ponerse en comunicación de fluido con los mismos, que comprende: un vástago de émbolo que incluye una parte de árbol rígida, alargada, que tiene una parte de punta que es circular, estrechada en sección, en su extremo distante, siendo dicha parte de árbol suficientemente larga para ser accesible exteriormente al cuerpo de jeringa; un tapón flexible que incluye una pared lateral anular que circunscribe a un eje longitudinal, una pared delantera que interseca a dicho eje longitudinal y que es enteriza con dicha pared lateral, un nervio anular que es de mayor diámetro que dicha pared lateral y que es enterizo con dicha pared lateral, siendo dicho nervio de mayor diámetro que la pared interior de dicha pared delantera, una pared interior anularque se estrecha en sección, extendida desde dicha superficie interior y que es enteriza con dicha pared lateral, definiendo dicha pared interior anular estrechada en sección y dicha superficie interior una cavidad que tiene dicha parte de punta estrechada en sección recibida en ella, estando dicha pared interior anular que se estrecha en sección inclinada en aproximadamente el mismo ángulo que dicha parte de punta estrechada en sección y adyacente a la misma, con lo que una fuerza aplicada a dicha parte de árbol en la dirección de estrechamiento descendente de dicha parte de punta estrechada en sección, crea una componente de fuerza que está dirigida en esencia hacia fuera desde la superficie de contacto de dicha parte de punta estrechada en sección y dicha pared interior anular estrechada en sección, en que dicho nervio aplica más presión a la pared cilíndrica del cuerpo de jeringa que la presión inicial existente como consecuencia de que dicho nervio sea mayor que la pared interior del cuerpo de jeringa; y medios cooperantes para mantener la relación posicional de dicho tapón y dicho vástago de émbolo, estando dicho tapón flexible contenido dentro de dicho cuerpo.
ES1984282376U 1982-12-20 1984-10-31 Una jeringa Expired ES282376Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/451,307 US4500310A (en) 1982-12-20 1982-12-20 Variable sealing pressure plunger rod assembly

Publications (2)

Publication Number Publication Date
ES282376U true ES282376U (es) 1985-06-16
ES282376Y ES282376Y (es) 1986-09-01

Family

ID=23791697

Family Applications (4)

Application Number Title Priority Date Filing Date
ES1983284421U Expired ES284421Y (es) 1982-12-20 1983-10-17 Un dispositivo de vastago de embolo para utilizar con una j eringa.
ES1984287027U Expired ES287027Y (es) 1982-12-20 1984-05-21 Un dispositivo de vastago de embolo para uso con un cuerpo de jeringa.
ES1984282376U Expired ES282376Y (es) 1982-12-20 1984-10-31 Una jeringa
ES1985290353U Expired ES290353Y (es) 1982-12-20 1985-11-15 Un dispositivo de vastago de embolo para utilizar con una jeringa

Family Applications Before (2)

Application Number Title Priority Date Filing Date
ES1983284421U Expired ES284421Y (es) 1982-12-20 1983-10-17 Un dispositivo de vastago de embolo para utilizar con una j eringa.
ES1984287027U Expired ES287027Y (es) 1982-12-20 1984-05-21 Un dispositivo de vastago de embolo para uso con un cuerpo de jeringa.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES1985290353U Expired ES290353Y (es) 1982-12-20 1985-11-15 Un dispositivo de vastago de embolo para utilizar con una jeringa

Country Status (6)

Country Link
US (1) US4500310A (es)
EP (1) EP0111724B1 (es)
JP (1) JPS59115053A (es)
DE (1) DE3375642D1 (es)
ES (4) ES284421Y (es)
NZ (1) NZ205476A (es)

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Also Published As

Publication number Publication date
ES282376Y (es) 1986-09-01
ES290353Y (es) 1987-05-01
EP0111724A3 (en) 1984-08-01
JPS59115053A (ja) 1984-07-03
NZ205476A (en) 1987-04-30
EP0111724A2 (en) 1984-06-27
ES287027U (es) 1986-07-16
DE3375642D1 (en) 1988-03-17
ES284421U (es) 1986-06-16
EP0111724B1 (en) 1988-02-10
JPH0360510B2 (es) 1991-09-13
ES290353U (es) 1986-08-16
ES287027Y (es) 1987-04-01
ES284421Y (es) 1987-03-01
US4500310A (en) 1985-02-19

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Legal Events

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Effective date: 20020304