DE102005015504A1 - Infusion system comprises a container for an infusion liquid, a cap with a lock, and an infusion set with a spike and a locking element - Google Patents

Abstract

The infusion system comprises a container (1) for an infusion liquid, a cap (2) with a lock (3), and an infusion set (6, 7) with a spike (4) and a locking element (5).

Description

The fast feed big amounts of liquid in severe shock states and bled accidental injuries and long-term infusion therapy are tasks that involve an infusion system consisting of infusion container and Infusion set managed can be.

For short-term infusions and infusions over a few Days are over Decades proven bottles with rubber seal and infusion set with stable piercing spike in use.

The Infusion and transfusion sets are delivered sterile packed and destroyed after a single use. If you were content with one earlier Simple sieve filter for catching blood coagula, so one calls today finer filters that also microcoagula and finest fibrin sludge stop. In the upper part of the infusion set are the drip chamber and to set the dripping speed a fine regulator interposed or appropriate. The drip chambers of most infusion sets are with aeration equipped, since almost all infusion bottles are no longer with a ventilation are provided. Close proximal to the cannula hub is located at all Systems a rubber spacer (Latex approach) repeated i.v. Injections allowed, without that the Continuity of System must be interrupted. When filling the System is to take care that the liquid level in the lower half the drip chamber is not too low, otherwise air in the bloodstream can get.

The Use of plastic bottles / plastic bags for infusion solutions and In addition to saving space and weight, blood has the advantage of being infused Transfusions in the beam of the required pressure by Pressure bag from the outside is reached on the plastic bag. The danger of an air embolism This is largely eliminated.

The Establishment of the connection between container and infusion set is usually easy. The infusion systems available on the market however, they have some disadvantages. and are characterized that the sealing rubber / rubber disc in the closures (caps, plugs, boats) of the containers must have sufficient thickness to allow for the production of the Connection to apply a sufficient adhesion to a unintentional release to prevent the thorn. After retreat of the thorn must that Rubber for ensure sufficient tightness. The specified thickness of the rubber makes two more conditions mandatory.

Of the Spike of the infusion set must be made with effort be drilled through the rubber washer. For this reason, the falls Thorn massive and very stable. The drip chamber is also rigid and voluminous and serves as a handle to drive the spike through the rubber.

adversely is that the described demands a high specific Material consumption result. Because the rubber washers are very expensive are and due to rising commodity prices and monopoly position a few suppliers' prices will continue to rise This is a rethinking and waiving rubber insert in the caps and plugging the closures is urgently needed. Also, despite sufficient thickness of the Rubber washers provide 100% security against unwanted loosening of the Dorn not guaranteed. Also in the sense of security for the Patients are looking for a safe and rubber-free connection.

From that Based on the object of the invention, an infusion system of the type specified above with improved properties to create and thus eliminate the disadvantages described above.

The technical solution is characterized by the features in claim 1.

The basic idea of the infusion system according to the invention is that the mandrel ( 4 ) no longer randomly perforate or puncture the closure of the container, but the spike ( 4 ) is passed over the closure ( 3 ) and pierces through without effort the thin sealing film ( 8th ). In "bottle packs", the thin plastic wall is perforated without any expenditure of force. 4 ) works on fit and closes tightly with the channel of the closure ( 3 ). The dimensioning of the mandrel and closure is such that the system already seals before the mandrel tip perforates the closure film or container. The spike thrusts into the bag. The liquid flows into the infusion set. The mandrel is inserted all the way into the closure and by turning with the Luer-Lock ( 3 + 5 ). The Luer-Lock closure can be replaced by a bayonet lock or click-lock or grid system. The goal is that the connection can only be canceled by active release. Since no large forces are applied and only thin films or the like are perforated, the mandrel can be reduced in diameter by more than half of the now common mandrels. The reduction of the diameter is not at the expense of the flow channels. The flow channels have the same diameter as the currently commercially available mandrels respectively infusion sets. This is desirable because of the comparability of flow ratios / dosage. The mandrels can be made of metal or plastic. The locking ring ( 5 ) may be fixed or rotatably mounted on the mandrel

Of the Closure on the side of the container can be sealed with a stopper or clip.

One embodiment of the infusion system according to the invention will be described with reference to the drawings. In these shows:

1 a first embodiment of the infusion system in the non-use position.

2 a first embodiment of the infusion system in the use position.

infusion set and container are securely connected

The infusion system of the first embodiment in 1 and 2 has a fluid container ( 1 ) with a cap / stopper ( 2 ) with closure ( 3 ) on. The counterpart consists of a commercial infusion set, whose 2-channel spike ( 4 ) is thinner and shorter than the commercially available mandrels. The spike is with a closure ( 5 ), which is designed as an antipode for closing the container.

purpose is the safe, solid and stable connection mandrel container ..

1

A liquid containment

2

cap with lock

3

shutter with luer

4

mandrel with lock

5

shutter with lock part

6

drip chamber

7

ventilation

8th

foil rubber Free / metal foil

Claims (9)

Infusion system with a container ( 1 ) for the liquid and a cap with closure ( 2 + 3 ) and with an infusion set ( 6 + 7 ) with corresponding mandrel with closure ( 4 + 5 ) to establish a firm connection between container and infusion set Infusion system according to claim 1, characterized in that the closure system is a luer-lock system Infusion system according to claim 1, characterized the locking system is a bayonet system Infusion system according to claim 1, characterized that the closure system is a click or raster system. Infusion system according to claim 1 to 4, characterized that the container a glass bottle and the rubber-free stopper with the closure system is provided according to claim 1 to 4 Infusion system according to claim 1 to 4, characterized in that the container is a Kunstoffflasche (bottle pack) and the _" bottle pack cap" is provided with the closure system according to claim 1 to 4 Infusion system according to claim 1 to 4, characterized that the container represents a plastic bag and the closure system according to claim 1 to 4 in the enemas respectively spouts of the bag is integrated. Infusion system according to claims 1 to 7, characterized that the closure on the container side sealed with a stopper or clip or metal foil is. Infusion system according to claim 5, characterized that the plug to the liquid out with a thin one Foil is sealed from metal or plastic