Surgery – Container for blood or body treating material – or means used... – Container with piercable closure
Patent
1983-11-22
1985-11-19
Skaggs, H. Grant
Surgery
Container for blood or body treating material, or means used...
Container with piercable closure
222107, 383 38, A61F 700
Patent
active
045539715
DESCRIPTION:
BRIEF SUMMARY
This invention relates to pouch-like bags for containing liquids for medical or surgical use, such as a liquid for intravenous injection by means of a hospital drip feed system. For such use, the bag should be capable of receiving one or more needles for making connection to the bag contents, for example, a dispensing or administration needle which will connect the liquid with the drip feed system and/or an injection or hypodermic needle by which a drug can be injected into the liquid before it is administered to a patient. The formation of formations provided for this purpose should be sterile and protected from contamination. Moreover, it or they should be capable of reliably making an hermetic and liquid-tight seal with a needle inserted therethrough.
Such bags have previously been made with tubular inserts sealed into an edge portion of the bag to form ports for insertion of needles and with sealed tear-off chambers outboard of the ports, as described in British Patent Specification No. 1544811, for example.
In our co-pending British patent application No. 8138586, we have described and claimed a pouch-like bag for containing a liquid for medical or surgical use, the bag having two walls formed by respective plies of flexible plastics material sealed together around their periphery, wherein the bag is provided with an elongate insert of polymeric material which is capable of self-sealing a puncture made transversely through the insert, the insert being sealed between the plies of flexible material so as to extend adjacent to a portion of the bag periphery, and extreme sealed peripheral portions of the plies of flexible material outboard of the insert forming a tearable tag which, when torn off the bag, exposes at least part of the length of the said insert, along a side face thereof, so as to allow an injection or dispensing needle access to penetrate transversely through the insert and into the bag.
European patent application No. 0038312 describes a package suitable for storage of preparations for parenteral administration, e.g. intravenous infusion solutions, which is designed to protect the contents from the influence of light, microbial contamination and gas transport in either direction but which makes possible a visual control of the contents before the package is used. For these purposes, the package is made of a light-proof outer bag and a light permeable inner bag arranged inside the outer bag. The outer bag and the inner bag are each sealed at one of their ends and are bonded around their periphery close to their outer end, and the two bags extend over this bond and are then commonly joined and sealed. By opening one of the end seals in the outer bag, the inner bag can be turned out of the outer bag, and the contents of the package can be observed visually through the inner bag. A tapping device of conventional design may be arranged in the wall of the inner bag so as to be accessible when the inner bag has been turned out of the outer bag.
It is an object of the present invention to provide an economical and effective construction of a bag for containing liquids for medical or surgical use, particularly a liquid for intravenous injection by means of a hospital drip feed system.
According to the present invention, a pouch-like bag for this purpose has two walls formed by respective plies of flexible plastics material sealed together around at least their top and side edges, and a third, folded ply of flexible plastics material which is disposed between the walls of the bag to form a gusset fold having opposed leaves sealed to the adjacent walls of the bag and which carries one or more elements for receiving a needle for making connection with the bag contents and which is closed below the element or elements to form a sealed compartment protecting the or each element from contamination, and is characterised in that the third or gusset ply is substantially smaller than the walls of the bag, so that when the sealed compartment is opened the gusset ply forms a substantially flat bottom of the b
REFERENCES:
patent: 2635788 (1953-04-01), Snyder et al.
patent: 3255923 (1966-06-01), Soto
patent: 3474789 (1969-10-01), Soto
patent: 3520471 (1970-07-01), Faust
patent: 4196030 (1980-04-01), Ausnit
patent: 4320789 (1982-03-01), Martin et al.
Ashley Robert J.
Bardhan Nabendu
Hardy Peter D.
Jeffs Keith D.
Metal Box p.l.c.
Noland Kenneth
Skaggs H. Grant
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