Body fluid interconnect

• US 4,969,879 A
• Filed: 07/26/1988
• Issued: 11/13/1990
• Est. Priority Date: 07/26/1988
• Status: Expired due to Term

• Current Assignee: Gish Biomedical, Inc. (LivaNova Plc)
• Original Assignee: Gish Biomedical, Inc. (LivaNova Plc)
• Inventors: Lichte, Leo J.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US07/224,308
• Time in Patent Office: 840 Days
• Field of Search: 604/280, 604/283, 604/243, 604/242, 604/403, 604/240, 604/411, 604/905, 604/244
• US Class Current: 604/533
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• 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 37/0985 the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part F16L37/0982 takes precedence
• CPC Class Codes: Y10S 604/905 Aseptic connectors or couplings, e.g. frangible, piercable

Abstract

The disclosure herein discloses a levered set of barbs, tangs or jaws for engaging a shoulder of a port from a body fluid device. The port of the body fluid device can have a shoulder or a series of barbs and a shoulder. Interiorly of the connector is a resilient interior member. The interior member is sloped interiorly to match the end region of the port. It receives the end of the port in displaced relationship in a manner whereby the interior member provides a seat that deforms against the end of the port as well as deforming outwardly to provide an angularly sloped member and a resilient seat in combination with each other for an expanded seated seal.

Claims

1. A connector for interconnecting a body fluid device having a connection port with a collar comprising:

a connection member comprising a resilient plastic body having at least one pivotally supported member with a portion for digital displacement by one'"'"'s fingers and a jaw for engaging the collar of said port and connection means for securing said body to a tube;

an interior member partially within the body of said connection member adapted to have one end placed within a tube and the other end within said connection member, said interior member having a seating portion which is angularly matched to the angular end of said port and formed of resilient material which is adapted to deform when the end of said port engages the matching surface;

the body of said connection member terminating distally from said jaws in an interiorly extending flange and said interior member having at least one shoulder which is secured against the interior flange of said connection member; and

,

said jaw is formed with an opposite jaw member to comprise a pair of jaws, and the ends of said jaws have tangs for engaging the collar of said inlet connection port.

2. The connector as claimed in claim 1 further comprising:

means for bonding the tube to said interior member while allowing the shoulder of said interior member to rotate radially against the flange of said connection member.

3. A body fluid interconnect for connecting a tubular member to a port of a body fluid handling device wherein the port of the body fluid handling device has at least one collar in upstanding relationship surrounding said port and a reduced peripheral surface at the end with a sloping portion thereof wherein the interconnect comprises:

a first body member having at least one lever connected thereto in pivotal relationship and a depending hook at the end thereof which can engage the collar of said port;

an interior member seated within said first member having a connection means between said first member and said interior member wherein said interior member extends from said first member and is adapted to receive a tube thereover;

and said interior member having a resilient seat which is angularly matched to the angular end of said port and which is adapted to deform when the end of said port engages the matching surface.

4. The interconnect as claimed in claim 3 wherein:

said interior member has a shoulder and said first member has an interiorly turned flange which engages said shoulder to form the connection means and said shoulder can rotate against said interior flange and thereby allow said first member to radially change with respect to said interior member for various radial orientations.

5. The interconnect as claimed in claim 4 further comprising:

said interior member having said seat formed of a resilient material which is allowed to deform against the interior of said first member to within the range of ten percent of expansion.

6. The interconnect as claimed in claim 5 further comprising:

a plurality of said levers having a digital portion at one end that can be depressed and a connecting member at the other end in the form of a depending tang which extends downwardly to engage the shoulder of said collar on said port.

7. The interconnect as claimed in claim 6 wherein:

said depending tangs have a leading sloping surface to override the collar until said tangs are engaged.

8. The interconnect as claimed in claim 7 wherein:

said levers are mounted on webbed extensions extending from the exterior of said first member.

9. The combination of an interconnect for a tubular member for connection to a port of a device for handling bodily fluids wherein said combination comprises:

a bodily fluid handling device with a port having a passage therethrough terminating in a reduced end wherein said port has a sloping surface in adjacent relationship sloping inwardly toward the end of said port, and a collar surrounding said port having an upstanding shoulder;

an interconnect member having an outer body of a tubular configuration which is adapted to extend over the end of said port;

a pivotal member mounted on said outer body having a first end with an inturned tang for engaging the collar of said port and a digital member at the other end for impressing said member downwardly to allow said barb to move over said collar; and

,

an interior member within said outer member having a resilient seat adapted for receiving the end of said port interiorly thereof and a portion extending beyond said first member adapted for receiving a tube connected thereto; and

wherein,

said interior member is sufficiently resilient to allow for a depression of the end of said port into said resilient seat, and further having a sloping surface adjacent to where the end of said port is seated that matches the sloping surface adjacent the end of said port.

10. The combination as claimed in claim 9 wherein:

said tangs have a surface on the leading edge which is angled to allow said tangs to slide over said collar.

11. The combination as claimed in claim 9 wherein:

said tangs which are mounted on said pivotal members are pivotally connected to an expansion formed of the same material as said outer member.

12. The combination as claimed in claim 11 wherein:

said tangs and pivotal members as well as said expansion and outer member are all formed of a unitized plastic material and said mounting point for said pivotal members forms a living hinge for causing said pivotal members to flex thereon.

13. The combination as claimed in claim 9 wherein:

said interconnect member has an interior flange and said interior member has a shoulder which engages said interior flange for rotational movement thereagainst.

14. The combination as claimed in claim 12 wherein:

said sloped surface at the end of said port is a portion of a barbed connection which is adapted for receipt of a flexible plastic tube thereover.

15. An interconnect for use with a barbed connector port having at least one sloping barb terminating in a reduced circumferential portion of a port for transport of body fluids to a body fluid handling device wherein said interconnect comprises:

a first body member of a circumferential size capable of being received over said barbed port;

at least one pivotal member attached to the first body member on an expansion having one end for digital displacement and the other end formed with a hook;

an interior member within said first member having a resilient seating surface adapted for receipt of the end of the barb of said port at one end interiorly of said first member and having a tubular member extending therefrom for receipt of a tube thereover;

said sloping surface of said port barb is matched with an angle of said seating surface of said interior member for receipt thereof for providing an angular surface engagement with said barb in combination with the resilient seating at the end of said barb member;

said pivotal member is of a plurality forming a pair of jaws with said hooks for engaging a flange of said port; and

wherein,

said seat of said interior member is formed of resilient material which is deformed upon the end of said port being engaged thereagainst.

16. The interconnect as claimed in claim 15 wherein:

said first member has an interiorly inturned flange and said interior member has a shoulder for engaging said interiorly inturned flange; and

wherein,

the interface is such wherein the interior member can turn radially with its shoulder against the interior portion of said flange for relative placement in different radial locations on said port.

17. The interconnect as claimed in claim 16 wherein:

said expansion for mounting said pivotal member comprises a plastic continuous material flowing from said pivotal member to said first member providing a living hinge.

18. The interconnect as claimed in claim 17 further comprising:

a plastic tubular member bonded to said interior member over an extension thereof.

19. The interconnect as claimed in claim 18 wherein:

the hooks of said interconnect have an angled surface adapted for displacement against the leading edge of the collar of said port; and

,

said hook has a surface adapted for retention against the collar of the flange of said port.