Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1994-07-08
1997-03-11
Mendez, Manuel
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
A61M 100
Patent
active
056095724
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a cassette infusion system based on the basis of the modular design principle for multiple infusions and the automatic administration of medicaments with a special suitability for intensive care.
BACKGROUND OF THE INVENTION
In the case of current modern intensive medical care using intravascular infusion therapy, such thereby usually takes place through an infusion catheter which requires 3, 6 or more infusion devices and solutions in order to ensure the necessary supply of different nutrients such as amino acids, carbohydrates, fats as well as vitamins, minerals and various different medicaments. For this purpose, at the present time, there is an increasing use of expensive infusion pumps, either alone or frequently for reasons of price, in combination with gravity infusion systems. The production of such infusion systems however necessitates a multiplicity of sterile disposable articles such as for example special hose systems with wide lumen infusion syringes, drip chambers, regulators, connecting hose with check valves, hose unions and manifolds, 3 way cocks etc. which involve complex manual operations. The result is however a highly unsystematic, expensive overall hose arrangement involving generally known risks such as confusion of infusion lines and infusion solutions, wrong operation of the 3 way cocks with retrograde infusion hoses and infusion containers, bacterial contamination in the course of manual assembly, errors in the times and volumes of application of the desired infusion solutions, incompatibility problems between medicaments and excessively voluminous hoses and other difficulties.
European patent publication 288 716 B1 has already disclosed a cassette infusion system, whose cassette housing contains a flow through passage, several selectively operated valve devices, a pump chamber and corresponding liquid inlets along the longitudinal direction of the through passage for connection with infusion devices. This cassette system does, however, suffer from the disadvantage that it is an integrated system and not capable of adaptation.
One object of the invention is to create a cassette infusion system, which is adaptable in use and can be employed for the administration of medicaments.
SUMMARY OF THE INVENTION
In accordance with the invention this object is to be attained by employing the features recited in claim 1. Accordingly the cassette infusion system in accordance with the invention and based on the modular design principle for multiple infusion possesses a particular suitability for intensive medical care. The individual modules thereof comprise at least the following ones: one outlet valve and infusion lines with associated inlet valves and following liquid distribution ducts, which open into one or more outlet connections.
The infusion pump cassette may additionally comprise a pressure measuring chamber and at one least venting filter.
As an additional module, a medicament application cassette, may be present which comprises a plurality of medicament containers. When it includes such a medicament administration cassette, the system may also be integrally designed as a system comprising at least one pump, liquid distribution ducts and the associated lines and valves.
Further modules can include a valve, pump and syringe actuating device, which by means of electromechanically and/or pneumatically or, respectively, electropneumatically and/or hydraulically or, respectively, electrohydraulically actuated plungers controls the valves arranged in the cassettes and the pump chambers and via metering plungers determines the infusion pressure and also a microprocessor control device.
Further preferred designs according to the invention will be comprehended from the claims dependent on claim 1.
The cassette infusion system more particularly renders possible a flexible adaptation to the respective requirements of the patient.
In this respect, it is, for example, possible to supply the patient with two or more incompatible infusion solut
REFERENCES:
patent: 4142524 (1979-03-01), Jassanolla et al.
patent: 4152098 (1979-05-01), Moody et al.
patent: 4456009 (1984-06-01), Vcelka et al.
patent: 4474309 (1984-10-01), Solomon
patent: 4519792 (1985-05-01), Dawe
patent: 4842584 (1989-06-01), Pastrone
patent: 4846636 (1989-07-01), Danby et al.
patent: 5098262 (1992-03-01), Weeker et al.
patent: 5108367 (1992-04-01), Epstein et al.
LandOfFree
Cassette infusion system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cassette infusion system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cassette infusion system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-439299