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EP0256640A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Connecting device for peritoneal dialysis

Assignee: Bieffe Medital SA

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Filing: 1987-06-22

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Granted: —

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Expires: 2007-06-22

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Abstract

Abstract The present invention relates to a device for use in peritoneal dialysis providing a sterile connection between (a) a catheter line (CL) and (b) a line (LS) for draining fluid from the peritoneal cavity and a line (LC) for supplying fresh fluid to the cavity. The device includes: (l) a housing (SL) having an external thread and which is connected at the end of the inflow/draining line (LC/LS) and in which there is provided a sheath (SLP) covering a hollow spike (SLC); (2) a cap (SC) enclosing between two perforatable membranes (SCM and SCFM) sterilizing medium. (3) a connector (F) attached to the catheter line (CL) and having a spike for penetrating the second cap membrane (SCFM); (4) a clamp (K) on the catheter line (CL), and (5) a key (SK) attached to the housing for opening the clamp (K); if the key is not fitted to the clamp (K), the clamp (K) automatically closes. At the beginning of a session to replace dialysis fluid, the cap (SC) is fitted on the connector (F) and the clamp is closed. The housing (SL) is attached to the cap by a screwthread connection and this causes the spike (SLC) to penetrate the cap membrane (SCM) causing the sterilizing fluid to flow through the housing into the lines (LC and LS), thereby sterilizing these parts. The key (SKL) is used to open the clamp (K) causing fluid in the peritoneal cavity to flow through the device into drainage line (LS). Fresh dialysis fluid is then fed into the cavity by way of the line (LC). The clamp (K) is then closed and the cap (SC) and the housing (SL) are removed from the connector (F) and a fresh cap (SC) fitted instead. The spike (FC) on the connector (F) penetrates the second cap membrane (SCFM), allowing sterilizing fluid to sterilize the connector and the part of catheter line (CL) up to the clamp (K).

Inventors

👤 Del Val Domingo Merry

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-10-23 15:13

CPC Classifications

A; A61; A61M; A61M39/00; A61M39/10; A61M39/16; A61M39/162; A61M1/00; A61M1/14; A61M1/28; A61M1/285; A61M39/22; A61M39/28; A61M2039/1066; A61M2209/00; A61M2209/04; A61M39/1033

Claims Analysis

Total Claims: 11

Claim 1

Independent Claim 106 words

A system for supplying fresh dialysis liquid to a peritoneal catheter line and thence to a patient's peritoneum and for draining used dialysis liquid from the peritoneum to a drainage line, which system comprises means for connecting the end of the charge line to the end of the catheter line (CL), said connecting means comprising a spike (SLC) provided at one of the said ends and a chamber (SC), which preferably contains a sterilizing medium (SCS), provided on the other of the said ends, which chamber has a membrane (SCM) that can be ruptured by the spike (SLC) to provide fluid communications between the two ends.

Claim 2

Independent Claim 106 words

Claim 3

Independent Claim 33 words

A system as claimed in claim l, which includes a sterile compartment (SLP) within which the spike (SLC) is housed, which compartment has a rupturable wall (SLM) through which the spike can penetrate.

Claim 4

Dependent Claim 31 words

A system as claimed in claim 2, wherein the rupturable wall (SCM) is part of a sheath (SLP) enclosing the spike (SLC), which sheath can be pulled back over the spike.

Claim 5

Independent Claim 44 words

A system as claimed in any one of claims l to 3, wherein the fluid communication provided between the said two ends is such that dialysis fluid passes through the chamber (SC) that, before rupturing of the said membrane (SCM), contained sterilizing medium (SCS).

Claim 6

Independent Claim 129 words

A system as claimed in any one of claims l to 4, which includes means (K) for opening and closing the catheter line (CL), which means can be in an open state in which it allows fluid to flow down the catheter line or in a closed state in which such fluid flow is prevented, which means (K) is such that it cannot be opened or maintained in the open state manually without the use of a key (SK) and wherein the system further includes a key secured to the end of the inflow/drainage line, whereby the end of the catheter line (CL) cannot be separated from the end of the inflow/drainage line (LC,LS) without first removing the key from the opening/closing means and thereby closing the catheter line.

Claim 7

Dependent Claim 50 words

A system as claimed in claim 5, wherein the catheter line (CL) is made of compliant material and wherein the opening/closing means (K) is a clamp for clamping the catheter line, the clamp comprising a pair of clamping elements and means for holding or biassing the two clamping elements together.

Claim 8

Independent Claim 57 words

A system as claimed in any one of claims l to 6, wherein the chamber is detachably secured to its respective end, which end includes a spike (FC) and which chamber includes a second membrane (SCFM) that is rupturable by the said spike to provide fluid communication between the interior of the chamber and the said end.

Claim 9

Independent Claim 27 words

A system as claimed in any one of claims l to 7, wherein the inflow and/or drainage lines (LSLC) are fitted with a closable valve (K₁, K₂)

Claim 10

Independent Claim 29 words

A system as claimed in any one of claims l to 8, wherein a single line serves as the inflow/drainage lines or wherein the system includes separate inflow/drainage lines.

Claim 11

Dependent Claim 41 words

l0. A system as claimed in any one of claims l to 9, wherein the spike (SLN) is provided at the end of the inflow/drainage lines (LC/LS) and the chamber (SC) is provided at the end of the catheter line (CL).

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