WO1987007843 MONOSTROKE SYRINGE PUSHER FOR AUTOMATIC PARENTERAL INJECTIONS WITH SERVO-CONTROL AND PROGRAMMING

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Publication Number WO/1987/007843

Publication Date 30.12.1987

International Application No. PCT/FR1987/000226

International Filing Date 17.06.1987

IPC

CPC

Applicants

HAZON, Bernard [FR]/[FR]
SAUSSE, André [FR]/[FR]

Inventors

HAZON, Bernard
SAUSSE, André

Common Representative

HAZON, Bernard

Priority Data

86/08781

18.06.1986

Publication Language French (fr)

Filing Language French (FR)

Designated States

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Title

(EN) MONOSTROKE SYRINGE PUSHER FOR AUTOMATIC PARENTERAL INJECTIONS WITH SERVO-CONTROL AND PROGRAMMING

(FR) DISPOSITIF POUSSE-SERINGUE MONOCOURSE POUR INJECTIONS PARENTERALES AUTOMATIQUES A ASSERVISSEMENT ET PROGRAMMATION

Abstract

(EN) Monostroke syringe-pusher for ambulatory medicinal injections with self-contained electric supply by means of rechargeable batteries of a motoreducing system which drives a coaxial worm screw. This worm screw actuates a carriage which provides for the translation of the syringe piston. The assembly is contained in a substantially sealed rigid envelope which also provides for the guiding of the carriage. The rotation angle of the worm screw corresponding to the delivery of the unit volume is controlled by two servo-control loops. The delivery rate of boluses is controlled by a programming unit and/or a clock. An excessive pressure or a continuous inadvertent operation of the motoreduction unit sets the irrevocable backward return of the device together with a sound alarm.

(FR) Dispositif monocourse pousse-seringue pour injections médicamenteuses ambulatoires à alimentation électrique autonome par batteries rechargeables d'un motoréducteur entraînant une vis-sans-fin coaxiale. Cette vis-sans-fin attaque un chariot assurant la translation du piston de la seringue. Tout l'ensemble est contenu dans une enveloppe rigide quasi-étanche servant aussi à guider le chariot. L'angle de rotation de la vis-sans-fin correspondant à la délivrance du volume unitaire est contrôlé par deux boucles d'asservissement. La fréquence de délivrance des bolus est contrôlée par un programmateur et/ou une horloge. Une pression excessive aussi bien qu'un fonctionnement continu intempestif du motoréducteur déclenche le retour arrière irrévocable avec alarme sonore.

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
M	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
5	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
14	Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142	Pressure infusion, e.g. using pumps
145	using pressurised reservoirs, e.g. by means of pistons

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
M	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
5	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
14	Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168	Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters
172	electrical or electronic

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
M	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
5	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
14	Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142	Pressure infusion, e.g. using pumps
145	using pressurised reservoirs, e.g. by means of pistons

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
M	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
5	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
14	Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
168	Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters
172	electrical or electronic

A	HUMAN NECESSITIES
61	MEDICAL OR VETERINARY SCIENCE; HYGIENE
M	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
5	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
14	Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
142	Pressure infusion, e.g. using pumps
145	using pressurised reservoirs, e.g. pressurised by means of pistons
1452	pressurised by means of pistons
1456	with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir

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1. WO1987007843 - MONOSTROKE SYRINGE PUSHER FOR AUTOMATIC PARENTERAL INJECTIONS WITH SERVO-CONTROL AND PROGRAMMING