Title of Invention

CONNECTOR FOR A CAPD BAG

Abstract A connector for use in dialysis system comprises a cylindrical hood for covering the entire threadingof a transfer set is eliminate touching the thread part of the transfer set during exchange process having a tapered hole and a connector disc supported with four ribs.
Full Text FIELD OF THE INVENTION :
The present invention relates to a connector for which CAPD ( Continuous Ambulatory
Peritoneal Dialysis ) Bag system enabling the patients who are on ambulatory
peritoneal dialysis system to make connection and disconnection with a minimum risk
of infection to the patient.
More particularly the invention relates to connector attached to Y connector for use
with continuous ambulatory peritoneal dialysis devices which prevents contamination
during connection or disconnection process of the connector to the transfer bag.
BACKGROUND OF THE INVENTION :
Y tubing is commonly focused in medical devices such as stethoscope, drain tubing,
intravenous sets, vacuum manifolds and the like. The Y tubing generally have three
tubular arms projecting from a common axis, each arm having an inner lumen, each
inner lumen of other arms. Thus, the goal of dividing a single tube having a single
lumen into two tubes having separate lumens is achieved. The assembly has three
structurallyweak points where each of these separate tubes are attached to the arm of
Y adaptor. The assembled non unitary bifurcating tubing is vulnerable at these points.
PRIOR ART:
U.S. Patent no. 5945057 describes a unitary tubing having a unitary construction and
an extension apparatus therefor. There are no joints to put apart Y connectors between
the tubes which may be vulnerable to separation. Connectors of different types are
well known in the art. There are many types of connectors. Connectors are actually a

very vital part of the medical equipment. There are quite a few methods used for
treating the patients who suffer with the loss of their kidney functions. In such patients

the removal of toxic substances and metasblities exerted by the kidney is performed by
dialysis. Normally in this medical process a container with the dialysate fluid is
connected to a permanent abdominal tube and the dialysis fluid is allowed to flow into
peritoneal cavity. The container and tubing are then wound around the waist and tied.
The dialysate fluid is allowed to remain in the peritoneal cavity for a period of time
allowing toxic waste and water to pass into the fluid. At the end of predetermined
period of time the container is lowered and the fluid is allowed to flow out and back into
the original container. The container is then disconnected and discarded and new
container of diaJysate fluid attached to the permanent abdominal tube and the process
is repeated.
U.S. Patent no. 4810241 describes connectors for use with ambulatory devices. The
connector is compressed of a cylinder containing a disinfecting solution which
continuous bathes the male and female connector of a tube during use. A male
connector is inserted into the female connector through the cylinder containing the
absorbent material saturated with the disinfectant. Once the dialysate fluid is delivered
to patient through connector, the tube is pulled off the outer end of male connector to
remove empty container.

STATEMENT OF INVENTION :
In Continuous Ambulatory Peritoneal Dialysis the process of dialysis is accomplished
by a percutaneous or surgical implantation of a catheter in the patients abdomen. The
CAPD system is connected to the catheter through the transfer set. The peritoneal
cavity is initially emptied by removal of peritoneal fluid into the drainage bag. After that
CAPD solution is infused into it. After the infusion the CAPD system is disconnected
from the transfer set. The dialysate (CAPD solution) stays for 4-5 hours in peritoneal
cavity (dwell time). During this dwell time toxic substances and metabolities are
transferred to dialysate by ultra filteration through peritoneal membrane. This entire
process constitutes an Exchange Procedure.
During the Exchange Process a frequent problem which occurs is the danger of
peritoneal infection or peritonitus. Problem with the conventional connectors which are
used in the exchange process is that being asymetric the alignment is not maintained
by repeated connections and disconnections. Also these connectors are not safe as
there could be leakage at the injection point resulting into a serious infection to the
patient. The other most serious disadvantage in the existing bag is touching the
connector with hand thus creating an infection.
Therefore, there always existed a need to provide a connector for use in the Exchange
Process of Continuous Ambulatory Peritoneal Dialysis which can remove the existing
drawbacks.

It is the object of the present invention to provide a connector for patient using
continuous ambulatory peritoneal dialysis. Another object of the present invention is to
provide a connector between the dialysis devices and the transfer set. It is yet another
object of the present invention is to provide a connector which is novel and safe for use
in the Exchange Procedure.
Other object of the present invention is to provide a connector which covers the entire
threading of the transfer set so that the hands do not touch the threading of transfer set
which could result in contamination.
Yet another object of the present invention is to provide a connector with a cap having
a handle which is easy to operate and eliminates chances of contamination of
connector.
Still another object of the present invention is to provide a connector in which the hole
of the central tube of the connector is tapered to give uniform flow of dialysate.
Another object of the invention is to provide a connector in which the alignment of the
screws to be fitted on the transfer set is maintained throughout the Exchange
Procedure.
The present invention allows the connection and disconnection of the transfer set
during the Exhchange Procedure which minimizes the possibility of contamination by

human hands. In the invention the connector has a cylindrical hood to cover the entire
threading of transfer set. The hood is capped with latex cap provided with a handle.
The cap can be removed by pulling the handle out of the connector. The hole of the
central tube of connector is tapered and the connector is made out of transparent
plastic. The connector disc is supported by 4 ribs to keep the alignment of the screw to
be fitted on transfer set fully aligned to eliminate leakage.
According to the present invention, a connector for use in a Continuous Peritoneal
Dialysis system comprises a cylindrical hood for covering the entire threading of a
transfer set, to eliminate touching the threaded portion of the transfer set during
exchange process a cylindrical hood to cover the entire threading of transfer set,
means to cover the cylendrical hood, means to pull out the covering means from the
covering hood central hole with tapering provided in the central tube for the smooth
flow of the incoming dialysate in peritoneal dialysis fluid, means for keeping the
alignment of the screw to be fitted on the transfer set fully aligned to eliminate leakage.
The other embodiment of the invention resides in that the connector is made of
transparent plastic preferably polycarbonate to render clear visibiliity of fittings in the
transfer set as well as movement of the solution.

In short the developed connector has the main sailent features :-
 The connector has a cylindrical hood to cover the entire threading of transfer
set. During connection or disconnection process of the connector to the
transfer bag, the hand does not touch the threaded portion of the transfer set
which shall result into contamination during exchange process
 The cylindrcal hood is capped with a medical grade latex cap provided with a
special handle. The design of the cap is such that by holding the end of the
handle and by pulling the same out of the connector to uncap the chance of
any touch to the connector hood are eliminated which results in to elimination of
contamination of the connector, resulting into elimination of infection to the
patient,
 The hole in the central tube of the connector is tapered to give uniform
smooth flow of the incoming dialysate, i.e. Peritoneal Dialysis fluid. This
results into the patient feeling more comfort when the dialysate is being
infused in the peritoneal cavity.
 The connector disc is supported by 4 ribs at an angle of 90° to each other
to keep the alignment of the screw to be fitted on transfer set fully aligned
to eliminate lekage.
 The connector is made out of transparent plastic i.e. polycarbonate through
which there is a clear visibility of appropriate fitting on to the transfer set as
well as movement of the solution.
The above invention will become more apparent when considered in the light of the
following accompanying drawings :-

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS :
Fig. 1 shows the cross sectional view of the connector.
Fig. 2 shows the top end of the connector to be connected to the tubing.
Fig. 3 shows the other end of the connector, connector to the adopter.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS :
The present invention conceives a novel connector with for use in continuous
ambulatory peritoneal dialysis system. The main (1) tube has an internal division to
form a bifurcating portion. The main tube (1), the bifurcating portion (4) and the arms
(2,3) are provided with extra thickness to give reinforcement to all the three arms so
that the desired straightness of the components connected to Y tubing or connector is
maintained, One end of the connector is connected to Y tubing which consists of a
cylindrical hood (5), a cap (6) provided with a handle and a disc (7). The cylindrical
hood (5) of the connector covers the entire threading of the transfer set so that during
connection or disconnection process to the transfer bag the hands do not touch the
threaded portion of the transfer set which might result into contamination during
exchange process. The cylindrical hood (5) is provided with a cap (6) of medical grade
latex. The cap has a handle (8) and is so designed that by holding the end of the
handle (8) and by pulling the same out of the connector the head is uncapped. Thus,
during, the connection and disconnection the chances of any touch to the connector's
head are eliminated which results into an infection free Exchange Procedure.

The connector is also provided with the disc (7) which is supported by 4 ribs (9) at an
angle of 90° to each other to keep the alignment of the screw to be fitted on transfer
set. This arrangement prevents leakage from the connector system. The connector is
made of transparent plastic e.g., polycarbonate through which there is a clear visibility
of appropriate filling on to the transfer set as well as the movement of the solution.

I CLAIM :
1) A connector for use in a Continuous Peritoneal Dialysis
System comprising a cylindrical hood (5) for covering the
entire threading of a transfer set to eliminate touching the
threaded portion of the transfer set during exchange
process characterized in having a cylindrical hood (5) to
cover the entire threading of transfer set, means (6) to
cover the cylindrical hood, means (8) to pull out the
covering means (8) from the covering hood a central hole
with tapering provides in the central tube for the smooth
flow of the incoming dialysate in peritoneal dialysis fluid,
means (9) for keeping the alignment of the screw to be
fitted on the transfer set fully aligned to eliminate leakage.
2) A connector as claimed in claim 1, wherein the said
connector disc is made out of transparent plastic
preferably polycarbonate to render clear visibility of
fittings on to the transfer set as well as movement of the
solution.
3) A connector for use in a Continuous Peritoneal Dialysis
system as claimed in claim 1, wherein the said means to
cover the cylindrical hood, is a medical grade cap (6)
conforming to the outer diameter of the hood.

4) A connector for use in a Continuous Peritoneal Dialysis
System as claimed in claim 1, wherein the said means to
put out the covering means from the covering hood is a
special designed handle (8) attached /fixed to the medical
grade latex cap.
5) A connector for use in a Continuous Peritoneal Dialysis
system as claimed in claim 1, wherein the means for
keeping the alignment of the screw to be fitted on transfer
set fully aligned to eliminate leakage area connector disc
supported by four ribs (9) fixed at an angle of 90 degree to
each other.
6) A connector as herein described with reference to the
accompanying drawings.
ABSTRACT :
A connector for use in dialysis system comprises a
cylendrical hood for covering the entire threading
of a transfer set is eliminate touching the thread part
of the transfer set during exchange process having
a tapered hole and a connector disc supported with
four ribs.

Documents:

334-KOL-2004-FORM-27.pdf

334-KOL-2004-GRANTED-ABSTRACT.pdf

334-KOL-2004-GRANTED-CLAIMS.pdf

334-KOL-2004-GRANTED-CORRESPONDENCE.pdf

334-KOL-2004-GRANTED-DESCRIPTION (COMPLETE).pdf

334-KOL-2004-GRANTED-DRAWINGS.pdf

334-KOL-2004-GRANTED-EXAMINATION REPORT.pdf

334-KOL-2004-GRANTED-FORM 1.pdf

334-KOL-2004-GRANTED-FORM 13.pdf

334-KOL-2004-GRANTED-FORM 19.pdf

334-KOL-2004-GRANTED-FORM 2.pdf

334-KOL-2004-GRANTED-FORM 26.pdf

334-KOL-2004-GRANTED-FORM 3.pdf

334-KOL-2004-GRANTED-FULL SPECIFICATION.pdf

334-KOL-2004-GRANTED-REPLY TO EXAMINATION REPORT.pdf


Patent Number 227813
Indian Patent Application Number 334/KOL/2004
PG Journal Number 04/2009
Publication Date 23-Jan-2009
Grant Date 20-Jan-2009
Date of Filing 22-Jun-2004
Name of Patentee LALIT MAHAJAN
Applicant Address 1-D, MANHAR MAHAL, 4 BAKUL BAGAN ROW BEHIND LANSDOWNE MKT., KOLKATA
Inventors:
# Inventor's Name Inventor's Address
1 LALIT MAHAJAN 1-D, MANHAR MAHAL, 4 BAKUL BAGAN ROW BEHIND LANSDOWNE MKT., KOLKATA-700 025
PCT International Classification Number A61M 1/28
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA