Tube connector

• US 4,123,091 A
• Filed: 11/21/1977
• Issued: 10/31/1978
• Est. Priority Date: 11/21/1977
• Status: Expired due to Term

• Current Assignee: Minntech Corporation
• Original Assignee: Renal Systems Incorporated
• Inventors: Cosentino, Louis C., Springrose, B. Steven
• Primary Examiner(s): Callaghan, Thomas F.
• Application Number:
  US05/853,133
• Time in Patent Office: 344 Days
• Field of Search: 285/319, 285/307, 285/38, 285/39, 285/DIG. 22
• US Class Current: 285/39
• 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: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: F16L 37/0847 by means of hooks F16L37/096, F16L37/098 take precedence
• CPC Class Codes: Y10S 285/921 Snap-fit

Abstract

A flow-through or fluid coupling connector assembly possessing positive locking connect and ready disconnect comprising two connector bodies; one having a male tubular member, and the other having a female tubular member for receiving the male member upon connection of the two bodies together. The male tubular member of the one connector body has resilient arm members spaced from and extending along opposite sides of the tubular member'"'"'s axis with the free remote ends of the arms flaring outwardly therefrom. The arm members are each provided with an inwardly projecting flange member for locking the two connector bodies together by fitting into a recessed collar on the other connector body. The other connector body has projections at opposite sides thereof which are of a size and spaced to bear outwardly against the arm members of the one connector body, the spacing being such that on rotation of one of the connector bodies relative to the other, the projections bear against the arms to spread them and lift the flanges out of the recessed collar for separation of the bodies.

Claims

1. A flow-through connector assembly for use in transmitting the flow of blood and other fluids, comprising in combination:

a. first and second connector bodies adapted to be couplingly connected together and to be readily disconnected by relative rotation of at least one of said bodies about the body axis and the separation of the two bodies;

b. the connector bodies each being characterized by a coaxial fluid passageway therethrough with each body having one end thereof adapted to be joined to a fluid conduit and an opposite end adapted for mutual connection with the other connector body to form a continuous fluid passageway therethrough when the bodies are connected together;

c. the said opposite end of one of the connector bodies including a male tubular member and the said opposite end of the other connector body including a female tubular member for receiving the male member upon connecting the two connector bodies together, each of the tubular members comprising a portion of the fluid passageway;

d. a pair of resilient arm members formed integrally with the first connector body and positioned along opposite sides of the tubular member on the first connector body and extending parallel thereto beyond the end of the tubular member at which point each arm has a flared segment which flares outwardly at an acute angle with respect to the longitudinal axis of the connector body and which is of a length approximating the length of said arm, and an inwardly extending flange member carried by each arm at a position beyond the end of the tubular member for receiving the tubular member carried by the second connector body when the two connector bodies are being connected together, the distance between the inward ends of the flanges being less than the outside diameter of the tubular member carried by the second connector body whereby the arms are resiliently spread apart when the tubular member is received between the flanges; and

,

e. The second connector body being further characterized by an annular recessed collar positioned inwardly of the tubular member carried thereby for receiving the flanges of the first connector body when the tubular members are joined thereby connecting the connector bodies together, and a pair of oppositely positioned members formed integrally with and extending outwardly from the sides of the second connector body from an inward position beyond the recessed collar and the tubular member, the outwardly extending members being of such a length as to bear against the flaring arms when the connected connector bodies are rotated relative to each other whereby the flanges are lifted out of the recessed collar and the connector bodies may be disconnected by separating them.

2. The connector assembly according to claim 1 wherein the connector bodies are composed of a polymeric material.

3. The connector assembly according to claim 2 wherein the bodies are molded.

4. The connector assembly according to claim 2 wherein the material is heat sterilizable.

5. The connector assembly according to claim 1 wherein the tubular member of the first connector body is the male tubular member.

6. The connector assembly according to claim 5 wherein the male member carries at least one "O" ring on its exterior for forming a liquid-tight seal between the male and female members.

7. The connector assembly according to claim 6 wherein two spaced "O" rings are carried by the male member.

8. The connector assembly according to claim 1 wherein the inward ends of the flanges are arcuate.

9. The connector assembly according to claim 8 wherein the arcuate inward ends of te flanges are chamfered.