Connector for therapeutic tubing and medical solution bag device using the connector

• US 4,820,288 A
• Filed: 01/09/1987
• Issued: 04/11/1989
• Est. Priority Date: 06/23/1981
• Status: Expired due to Fees

• Current Assignee: Terumo Kabushiki Kaisha
• Original Assignee: Terumo Kabushiki Kaisha
• Inventors: Isono, Keinosuke
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US07/001,673
• Time in Patent Office: 823 Days
• Field of Search: 604/29, 604/280, 604/283, 604/905, 604/49-54, 604/86
• US Class Current: 604/534
• CPC Class Codes: A61M 39/10 Tube connectors; Tube couplings A61M39/02 takes precedence; connecting needles to syringes or hubs A61M5/34; connecting catheter tubes to hubs A61M25/0014
• CPC Class Codes: F16L 19/0206 the collar not being integral with the pipe
• CPC Class Codes: F16L 19/025 the pipe ends having integral collars or flanges
• CPC Class Codes: Y10S 604/905 Aseptic connectors or couplings, e.g. frangible, piercable

Abstract

A connector for therapeutic tubing comprising a tubular male connector member made of thermally resistant corrosionproof material, a tubular female connector member made of thermally resistant corrosionproof material and a locking mechanism coupled to the connector members and used for locking the union between the connector members. A medical solution bag device comprises a flexible bag, a flexible tube connected to the bag flexible, a further tube adapted to be connected to the flexible tube and the above mentioned connector for connecting the flexible tube to the further tube.

Claims

1. Connector means for connecting first and second medically therapeutic tubes to one another under flame sterilization, thereby preventing microorganic invasion into the interior of the tubes through the connector means comprising:

a tubular male connector made of a thermally resistant and corrosionproof material, said male connector member having a tubing end adapted to be connected to said first therapeutic tube;

said material from which said male connector member is made also being flame-resistant and flame-sterilizable;

said tubing end of the male connector member being liquid-tightly insertable into an end of said first therapeutic tube;

a first retaining and holding member covering a portion of said tubing end of said tubular male connector in the vicinity of the portion of said male connector which is insertable into said first therapeutic tube, said first retaining and holding member being hand-holdable by a user during a flame sterilization operation and a connection operation;

a tubular female connector member made of a thermally resistant and corrosionproof material, said female connector member having a tubing end adapted to be connected to said second therapeutic tube;

said material from which said female connector member is made along being flame-resistant and flame-sterilizable;

said tubing end of the female connector member being liquid-tightly insertable into an end of said second therapeutic tube;

a second retaining and holding member covering a portion of said tubing end of said tubular female connector in the vicinity of the portion of said female connector which is insertable into said second therapeutic tube, said second retaining and holding member being hand-holdable by a user during a flame sterilization operation and a connection operation;

an O-ring provided in a middle portion of said female connector member;

said male and female connector members each having mutual engagement means which are mutually engageable to connect said first and second therapeutic tubes together, said male connector member being in contact with said O-ring when engaged with said female connector member;

a locking mechanism on said male and said female connector members for locking said male and female connector members for locking said male and female connector members liquid-tightly to one another when placed in an engaged state;

at least one of said male and female connector members being flame sterilized by a flame directed thereat, thereby sterilizing at least the area which is contacted by the flame;

said mutual engagement means of said male and female connector members including means engageable with one another without relative twisting movement therebetween during said flame sterilization; and

means for actuating said locking mechanism on said connector members to lock said male and female connector members together after said flame sterilization and engagement therebetween, thereby preventing microorganic invasion into the interior of said first and second therapeutic tubes through said connector means.

2. The connector means of claim 1, comprising retaining means coupled to said tubing ends of said male and female connector members for retaining the associated ends of said first and second therapeutic tubes on said respective tubing ends of said connector members during said flame sterilization.

3. The connector means of claim 2, wherein each of said retaining means is heat shrunk over said tubing ends, thereby securing said associated tube ends to said tubing ends of said connector members.

4. The connector means of claim 1, wherein at least one of said therapeutic tubes is made of plastic material.

5. The connector means of claim 1, wherein at least one of said therapeutic tubes is made of rubber material.

6. The connector means of claim 1, wherein said flame sterilization comprises flame sterilization of those portions of said male and female connector members which are engaged together.

7. The connector means of claim 1, wherein both of said male and female connectors are flame sterilized prior to and during said engagement therebetween.

8. The connector means of claim 1, wherein during said flame sterilization, a sterilizing flame is directed away from said therapeutic tubes such that said flame does not contact said therapeutic tubes.

9. The connector means of claim 1, wherein said therapeutic tubes and connector members comprise at least a part of a peritoneal dialysis system.

10. The connector means of claim 1, wherein at least one of said therapeutic tubes is connectable to a body of a patient.

11. The connector means of claim 10, wherein said therapeutic tubes and connector members comprise at least a part of a peritoneal dialysis system.

12. The connector means of claim 1, wherein said first and second holding and retaining members are made of a thermally insulating material.

13. The connector means of claim 1 wherein said first and second holding and retaining members are made of a heat-shrinkable silicone tube.

14. The connector means of claim 1, wherein said first and second boiling and retaining members are made of a silicone resin.

15. The connector means of claim 1, wherein said first and second holding and retaining members are made of fluorine resin.

16. The connector means of claim 1, wherein said first and second holding and retaining members are made of cork.

17. The connector means of claim 1, wherein said first and second holding and retaining members are made of a material having substantially no flexibility.