Peritoneal dialysis connection system and method for using ultraviolet light emitting diodes

• US 8,469,545 B2
• Filed: 05/10/2012
• Issued: 06/25/2013
• Est. Priority Date: 07/05/2007
• Status: Active Grant

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter Healthcare Corporation (Baxter International Inc.), Baxter Healthcare SA (Baxter International Inc.)
• Inventors: Sobue, Katsuyoshi, Nakajima, Takeshi, Matsuzaki, Atsushi, Okuda, Minoru
• Primary Examiner(s): CONLEY, SEAN EVERETT
• Application Number:
  US13/468,816
• Publication Number:
  US 20120220927A1
• Time in Patent Office: 411 Days
• Field of Search: 422/24, 422/28, 422/186.3, 422/292, 362/227, 362/249.02, 604/29
• US Class Current: 362/249.02
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61M 1/159 specially adapted for peritoneal dialysis
• CPC Class Codes: A61M 1/28 Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
• CPC Class Codes: A61M 1/285 Catheters therefor
• CPC Class Codes: A61M 2039/167 with energizing means, e.g. light, vibration, electricity
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 39/16 having provision for disinfection or sterilisation A61M39/143 takes precedence; methods or apparatus for disinfection or sterilisation A61L2/00
• CPC Class Codes: A61M 39/18 Methods or apparatus for making the connection under sterile conditions, i.e. sterile docking

Abstract

Peritoneal dialysis systems are provided by the present disclosure. In a general embodiment, a peritoneal dialysis system includes a cycler, a disposable cassette operable with the cycler, a supply bag connected to the disposable cassette, a supply connector, a supply line extending from the disposable cassette, a patient connector in fluid communication with a patient'"'"'s indwelling catheter, a device to connect the supply connector to the patient connector, and a housing around the device. The housing includes a plurality of ultraviolet (“UV”) light-emitting diodes (“LED'"'"'s”) for directing energy towards at least one of the supply or patient connectors. The LED'"'"'s are configured to deliver about 200 milliJoules in a period of about a minute.

Claims

1. A peritoneal dialysis system comprising:

a cycler;

a disposable cassette operable with the cycler;

a supply bag connected to the disposable cassette;

a supply connector;

a supply line extending from the disposable cassette, the supply line terminating at the supply connector;

a patient connector in fluid communication with a patient'"'"'s indwelling catheter;

a device configured to connect the supply connector to the patient connector without physically contacting the supply connector and the patient connector; and

a housing placeable around the device and including a plurality of ultraviolet (“

UV”

) light-emitting diodes (“

LED'"'"'s”

) positioned to direct energy towards at least one of the supply connector and the patient connector, wherein the plurality of LED'"'"'s are configured to deliver about 200 milliJoules in a period of about a minute.

2. The peritoneal dialysis system of claim 1, wherein at least one of the supply connector and the patient connector is at least partially opaque to UV light.

3. The peritoneal dialysis system of claim 1, wherein the at least one UV-LED is powered via a battery.

4. The peritoneal dialysis system of claim 1, wherein the at least one UV-LED is powered via the cycler.

5. The peritoneal dialysis system of claim 1, which includes a transfer set, the transfer set connecting the patient connector to the indwelling catheter.

6. The peritoneal dialysis system of claim 1, wherein the housing is hinged or halved to fit around the connecting device.

7. The peritoneal dialysis system of claim 1, which is configured to emit UV light from the LED'"'"'s just before the supply connector and the patient connector are mated via the device.

8. The peritoneal dialysis system of claim 1, which is configured to emit UV light from the LED'"'"'s just after the supply connector and the patient connector are disconnected via the device.

9. A peritoneal dialysis system comprising:

a cycler;

a disposable cassette operable with the cycler;

a supply bag;

a supply connector;

a supply line positioned and arranged to carry dialysis fluid from the supply bag to the supply connector;

a patient connector in fluid communication with a patients'"'"' indwelling catheter; and

a housing placeable around the supply connector and the patient connector, the housing including a plurality of ultraviolet (“

UV”

) light-emitting diodes (“

LED'"'"'s”

) positioned to direct energy towards all mating surfaces of both of the supply connector and the patient connector (i) just prior to connecting the supply connector and the patient connector and/or (ii) just after disconnecting the supply connector and the patient connector.

10. The peritoneal dialysis system of claim 9, which includes a cycler and a disposable cassette operable with the cycler, at least one of the supply bag and the supply line in fluid communication with the disposable cassette.

11. The peritoneal dialysis system of claim 9, which includes a device configured to connect and disconnect the supply connector and the patient connector, and wherein the housing is placeable around the device.

12. The peritoneal dialysis system of claim 9, wherein an inner surface of the housing includes a UV light reflective material.

13. The peritoneal dialysis system of claim 9, wherein the plurality of LED'"'"'s are connected together electrically via at least one trace wire formed on an inner surface of the housing.

14. The peritoneal dialysis system of claim 9, wherein each of the LED'"'"'s has a power output of about 4 milliJoule per second at an output wavelength of about 280 nanometers.

15. The peritoneal dialysis system of claim 9, wherein the plurality of LED'"'"'s includes about fifty mounted LED'"'"'s and the housing includes two cylindrical halves.

16. The peritoneal dialysis system of claim 9, wherein the plurality of LED'"'"'s includes about fifty LED'"'"'s and the housing includes two cylindrical halves, each half being about ten mm inner diameter and about 40 mm long.

17. The peritoneal dialysis system of claim 9, which is configured to power a first portion of the plurality of LED'"'"'s for a period of time and a second portion of the plurality of LED'"'"'s after the period of time.