EP0049525A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Continuous peritoneal dialysis bag device
Assignee: Sis Ter SpA
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Filing: 1981-10-06
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Granted: —
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Expires: 2001-10-06
Abstract
Abstract For portable use of peritoneal dialysis, a flexible bag of plastic material has two chambers therein, one being a dialysis liquid chamber (42) and substantially larger than a further disinfectant chamber (8); the bag is formed of thermoplastic material, heat-sealed together at seam lines extending thereacross, and sealed into the seam lines are a communication line (16) from the dialysis chamber (42) to the outside, and a branch duct (17) extending from the disinfectant chamber to the communication duct; the respective ducts are closed off at the inside of the chambers, after filling, by releasable closures, such as a ball squeezed into the duct, or a frangible pin which can be broken off by flexing the bag, thus permitting removal of, respectively, dialysis fluid and disinfectant from the respective chambers; used dialysis fluid can be returned into the bag. The chambers preferably additionally have a penetrable closure, such as a membrane-sealed or sponge-seated plug, to permit introduction of the respective liquids thereinto after manufacture. The connection elements, at the outside, are retained in sterile condition by a capsule-like protective element formed of two half-shells filled with sponge material soaked with disinfectant, and releasably connected together.
Inventors
- 👤 Gianfranco Bertellini
- 👤 Luigi Fabbri
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 04:47
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1654; A61M1/1656; A61M1/1668; A61M1/28; A61J1/14; A61J1/1462; A61J1/20; A61J1/2003; A61J1/202; A61J1/2027; A61J1/2093; A61M2205/00; A61M2205/60; A61M2205/6063; A61M2205/6081
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
218 words
Continuous peritoneal dialysis bag, adapted for connection to a catheter associated with the abdominal cavity of a patient, comprising a flexible bag (4) of flexible plastic material, formed of two parallel plastic walls (40, 41) secured together at connection lines (4a, 5, 5a) to define therebetween a plurality of chambers (42, 8), and communication ducts (16, 17) sealed into said connection lines to provide for fluid communication with the chambers, characterized in that a first connection line (5) extends essentially transversely across the bag to define a dialysis fluid chamber in the bag, and a second connection line (5a) is spaced said first connection line to define a disinfectant chamber in the bag; a first one (16) of the communication ducts extending from the dialysis fluid chamber (42) to the outside thereof; a second one of the communication ducts (17) extending from the disinfectant chamber, and merging into the first communication duct, to permit injection of disinfectant fluid.from the disinfectant chamber into the first communication duct for fluid delivery from the dialysis chamber; releasable closure means (12, 13, 19) closing off the inside of at least said second communication duct, positioned at the end of the duct adjacent the chamber; and a third closeable communication duct (10a) extending from the outside of the bag into the dialysis chamber.
Claim 2
Dependent Claim
218 words
Continuous peritoneal dialysis bag, adapted for connection to a catheter associated with the abdominal cavity of a patient, comprising a flexible bag (4) of flexible plastic material, formed of two parallel plastic walls (40, 41) secured together at connection lines (4a, 5, 5a) to define therebetween a plurality of chambers (42, 8), and communication ducts (16, 17) sealed into said connection lines to provide for fluid communication with the chambers, characterized in that a first connection line (5) extends essentially transversely across the bag to define a dialysis fluid chamber in the bag, and a second connection line (5a) is spaced said first connection line to define a disinfectant chamber in the bag; a first one (16) of the communication ducts extending from the dialysis fluid chamber (42) to the outside thereof; a second one of the communication ducts (17) extending from the disinfectant chamber, and merging into the first communication duct, to permit injection of disinfectant fluid.from the disinfectant chamber into the first communication duct for fluid delivery from the dialysis chamber; releasable closure means (12, 13, 19) closing off the inside of at least said second communication duct, positioned at the end of the duct adjacent the chamber; and a third closeable communication duct (10a) extending from the outside of the bag into the dialysis chamber.
Claim 3
Dependent Claim
20 words
Bag according to claim 1, wherein the communication lines are plastic tubes sealed to the plastic material forming the bag.
Claim 4
Dependent Claim
59 words
Bag according to claim 1, wherein the plastic bag is defined by two parallel flat sheet elements of flexible plastic; the communication lines are plastic tubes; the connection lines are heat seams connecting the plastic sheets; and the communication lines form a junction located within the communication lines and sealed to the sheets forming the walls of the bag.
Claim 5
Dependent Claim
22 words
Bag according to claim 1, further including a fourth closeable communication duct (18a) communicating from the outside to the disinfectant chamber (8).
Claim 6
Dependent Claim
38 words
Bag according to claim 3, wherein the flat sheets of flexible plastic have extending flap portions (90, 91, 90a, 91a) extending over the third closeable communication duct (10a) to form a protective flap over the terminal portion thereof.
Claim 7
Dependent Claim
93 words
Bag according to claim 5, further including a cross seam portion (4a) forming a connection line remote from said first and second connections lines; suspension holes (4b) positioned adjacent said cross seam portion to permit suspension of the bag with the first and second communication ducts extending downwardly; and additional suspension holes (4c) formed in the flat sheet element adjacent said first and second communication ducts to permit suspension of the bag with at least said first communication duct (16) extending upwardly to permit drainage of fluid thereinto and into the dialysis chamber.
Claim 8
Dependent Claim
31 words
Bag according to claim 1, including a further releasable closure means (12, 13) for said first communication duct (10) positioned at the end of the duct adjacent the dialysis chamber (42).
Claim 9
Dependent Claim
80 words
Bag according to claim 1 or 7, wherein said releasable closure duct comprises a plug and a frangible pin element (12) closing off the through-opening of the plug, the pin element permitting breaking off of the pin through flexing of the pin by pressure on the flexible plastic bag, breaking of the pin at a break line of the pin with the plug, and thus establishing fluid communication from the interior of the respective chamber (42) with the exterior thereof.
Claim 10
Dependent Claim
81 words
Bag according to claim 4, including a further releasable closure means (12, 13) closing off said first communication duct (10) at the end of the duct adjacent the dialysis chamber (42); wherein the releasable closure means communicating with the dialysis chamber (42) and with the disinfectant chamber (8), respectively, are of different color to permit ready identification of the respective closure means; and wherein the flexible plastic material of the bag is sufficiently transparent to permit observation of the respective color.
Claim 11
Dependent Claim
120 words
Bag according to claim 1, wherein the first communication duct (10) has an end portion positioned outside of said bag; a tube coupling element (2) secured to the,end portion; and further comprising, in accordance with the invention, manually releasable means (20) keeping the tube coupling element and the duct portion adjacent thereto in sterile condition, comprising a pair of half-shells (21, 21') of plastic material; a compressible foam material (22) located in the half-shells and essentially filling the half-shells; disinfectant solution retained and absorbed in the foam material within the half-shell; and releasable connection means (21a, 21a') securing the half-shells together, said half-shells being closed over the coupling element and the duct portion adjacent thereto to prevent, external contamination thereof.
Claim 12
Dependent Claim
53 words
Bag according to claim 10, wherein the releasable connection means comprises a living hinge securing the half-shells (21, 21') together at one side, whereby said half-shells will form a single element; and matching interengaging locking means (21a, 21a') formed on the respective ones of the half-shells at locations remote from the living hinge.
Claim 13
Dependent Claim
29 words
Bag according to claim 11, wherein the half-shells are elongated and formed with constricted half-tubular end sections fitting over the portions of the communication duct adjacent the coupling elements.
Claim 14
Dependent Claim
86 words
Device to maintain sterile a medical coupling element comprising a pair of half-shells (21, 21') of plastic material; a compressible foam material (22) located in the half-shells and essentially filling the half-shells; disinfectant solution retained and absorbed in the foam material within the half-shells; and releasable connection means (21a, 21') securing the half-shells together, said half-shells being closed over the medical device to be maintained in sterile condition and thus prevent contamination thereof, but permitting access to the medical device by releasing the releasable connection means.
Claim 15
Dependent Claim
86 words
Device to maintain sterile a medical coupling element comprising a pair of half-shells (21, 21') of plastic material; a compressible foam material (22) located in the half-shells and essentially filling the half-shells; disinfectant solution retained and absorbed in the foam material within the half-shells; and releasable connection means (21a, 21') securing the half-shells together, said half-shells being closed over the medical device to be maintained in sterile condition and thus prevent contamination thereof, but permitting access to the medical device by releasing the releasable connection means.
Claim 16
Dependent Claim
45 words
Device according to claim 13, wherein the releasable connection means comprises a living hinge securing the half-shells together to form a single element; and matching interengaging locking means (21a, 21a') formed on the respective ones of the half-shells at locations remote from the living hinge.
Claim 17
Dependent Claim
31 words
Device according to claim 14, wherein the half-shells are elongated and formed with constricted half-tubular end sections fitting over a tubular portion of a medical apparatus secured to said medical device.
Claim 18
Dependent Claim
127 words
A medical liquid retention bag defining a chamber (42) therein and selectively operable communication to the outside thereof, comprising wall portions (40, 41) formed of flexible plastic material; at least one plastic weld connection line (4a, 5, 5a) welding said wall portions together and forming a seam line; a communication duct (16, 17) extending across said seam line and positioned to communicate the interior of the chamber formed by said wall portions with the outside; and a releasable closure (12, 13, 19) positioned at the interior of the chamber, adjacent the end portion of the duct in the region adjacent the chamber, and releasable from said communication duct upon flexing of the wall portions of the bag to thereby flex the communication duct and release said closure.
Claim 19
Dependent Claim
127 words
A medical liquid retention bag defining a chamber (42) therein and selectively operable communication to the outside thereof, comprising wall portions (40, 41) formed of flexible plastic material; at least one plastic weld connection line (4a, 5, 5a) welding said wall portions together and forming a seam line; a communication duct (16, 17) extending across said seam line and positioned to communicate the interior of the chamber formed by said wall portions with the outside; and a releasable closure (12, 13, 19) positioned at the interior of the chamber, adjacent the end portion of the duct in the region adjacent the chamber, and releasable from said communication duct upon flexing of the wall portions of the bag to thereby flex the communication duct and release said closure.
Claim 20
Dependent Claim
34 words
Bag according to claim 16, wherein said closure comprises a ball (19) frictionally retained within the communication duct and capable of being expelled upon pressure through the wall portions and upon the communication duct.
Claim 21
Dependent Claim
71 words
Bag according to claim 16, wherein the releasable closure comprises a plug having a projecting pin extending beyond the communication duct, said pin (12) having a break line with respect to the plug and being frangible at the break line upon deflection and lateral pressure on the pin by flexing the flexible plastic bag to thereby bend and break off the pin (12) and provide for communication through the communication duct.
References Cited (Backward Citations)
No citation records indexed.
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