Medical coupling system

• US 8,372,059 B2
• Filed: 04/27/2011
• Issued: 02/12/2013
• Est. Priority Date: 08/11/2004
• Status: Expired due to Fees

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Inventors: Ziman, Lynn A.
• Primary Examiner(s): Mehta, Bhisma
• Application Number:
  US13/064,929
• Publication Number:
  US 20110224651A1
• Time in Patent Office: 657 Days
• Field of Search: 604/513, 604/533, 604/534, 604/535, 604/538, 604/539, 285/315, 285/322, 285/324, 285/396, 285/402, 285/913, 285/914
• US Class Current: 604/534
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1033 Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• CPC Class Codes: A61M 2039/1094 at least partly incompatible with standard connectors, e.g. to prevent fatal mistakes in connection
• 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

Abstract

An adapter bridging a medication providing device and a fluid connector includes a housing shroud that is fitted at one end with a core and at its other end with an inner shroud. Once fitted to the housing shroud, the core and the inner shroud each are not removable from the housing shroud. A catch hub is provided within the housing shroud for non-removably maintaining the core to the housing shroud. The core is rotatable relative to the housing shroud. Once the medication providing device is coupled to the core, additional rotational movement, in either direction, of the medication providing device would only cause the core to rotate freely relative to the housing shroud, thereby preventing the medication providing device from being removed from the adapter. The inner shroud has a catch mechanism that enables it to mate readily with a connector when rotated in one direction.

Claims

1. Apparatus, comprising:

a core having a through bore;

an inner shroud positioned about at least one portion of said core, said inner shroud having a plurality of teeth at one end of said inner shroud, at least one portion of an inside circumferential wall of said inner shroud threaded so that said inner shroud has an internal thread;

a shroud into which said core and said inner shroud are movably positioned, said shroud having a distal opening and a proximal opening, and a plurality of bumps positioned in the shroud away from the distal and proximal openings, the plurality of bumps each in position relative to a corresponding one of the teeth of the inner shroud;

wherein when a directional torque force is applied to said shroud relative to a connector end to be connected to said apparatus, corresponding ones of the bumps and teeth would contact each other to enable the connector end to be mated to said inner shroud.

2. Apparatus of claim 1, wherein each of the teeth comprises a ramped portion that guides the tooth away from a corresponding bump at said shroud when the directional torque force no longer needed to mate the connector end to the inner shroud is applied to said shroud relative to the connector end.

3. Apparatus of claim 1, wherein said core comprises a distal portion surrounded by said inner shroud, the distal portion of said core matable with the connector end, the connector end matingly connected to said inner shroud to couple the connector end to said distal portion of said core and said inner shroud.

4. Apparatus of claim 1, wherein said core comprises one end connectable to a luer connector.

5. Apparatus of claim 1, wherein said core comprises a distal portion and a proximal portion, the distal portion is connectable to the connector end in fluid communication with a patient and the proximal portion is connectable to a medicament source so that medicament may be fed through the core to the patient.

6. Apparatus of claim 5, wherein said medicament source is not removable from said core once it is connected to said core.

7. Apparatus of claim 5, wherein said inner shroud comprises a distal end positioned about at least the distal portion of said core, and

wherein the end of said apparatus having the distal portion of said core and the distal end of said inner shroud is connectable to said connector end but the end of said apparatus opposite to the distal portion of said core and the distal end of said inner shroud is not connectable to said connector end.

8. Apparatus of claim 1, wherein said core is freely rotatable relative to said shroud so that a connector for conveying a medication is not removable from said apparatus once it is connected to said apparatus.

9. Apparatus of claim 8, wherein the connector end is being used for conveying the medication to a patient from a medication providing device.

10. Connector, comprising:

a core having a through bore;

an inner shroud positioned about said core, said inner shroud having a plurality of teeth, at least one portion of said inner shroud has an internal thread;

a shroud having a distal opening and a proximal opening movably positioned about said core and said inner shroud, a plurality of bumps positioned in the shroud away from the distal and proximal openings, the plurality of bumps each positioned relative to a corresponding one of the plurality of teeth of said inner shroud so as to make contact with its corresponding tooth when said shroud and said inner shroud are rotated relative to each other;

wherein when said shroud is rotated relative to a connector end to be connected to said connector, the contact between corresponding ones of the teeth and bumps enable the connector end to be mated to said inner shroud.

11. Connector for claim 10, wherein each of the teeth has a ramped portion that guides the tooth away from a corresponding bump at said shroud when said shroud is rotated relative to the fluid connector after the connector end is mated to the connector.

12. Connector of claim 10, wherein said core comprises a distal portion surrounded by said inner shroud, the distal portion of said core matable with the connector end to couple a fluid connector to said distal portion of said core and said inner shroud.

13. Connector of claim 12, wherein said inner shroud comprises a distal end positioned about at least the distal portion of said core, and

wherein the end of said connector having the distal portion of said core and the distal end of said inner shroud is connectable to the connector end but the end of said connector opposite to the distal portion of said core and the distal end of said inner shroud is not connectable to the connector end.

14. Connector of claim 10, wherein said core comprises one end connectable to a luer connector.

15. Connector of claim 10, wherein said core comprises a distal portion and a proximal portion, wherein one of the portions is connectable to the connector end of a fluid connector in fluid communication with a patient and the other of the portions is connectable to a medicament source so that the medicament may be fed through the core to the patient.

16. Connector of claim 15, wherein said medicament source is not removable from said core once it is connected to said core.

17. Connector of claim 10, wherein said core is freely rotatable relative to said shroud so that a connector end for conveying a medication to a patient is not removable from said apparatus once it is connected to said apparatus.

18. Connector of claim 17, wherein the connector end is a part of a medication providing device for conveying the medication to the patient.

19. System, comprising:

an adapter having

a core having a through bore;

an inner shroud positioned about said core, said inner shroud having a plurality of teeth at its one end, at least one portion of an inside circumferential wall of said inner shroud threaded so that said inner shroud has an internal thread at its other end;

a shroud having a distal opening and a proximal opening movably positioned about said core and said inner shroud, the shroud including an internal shoulder positioned away from the distal and proximal openings and a plurality of bumps located at one side of the shoulder, each of the bumps positioned relative to a corresponding one of the teeth at the inner shroud so that corresponding ones of the teeth and bumps make contact with each other when said shroud and said inner shroud are rotated relative to each other;

a connector end matable to the internal thread of said inner shroud; and

a medication source for supplying medication to said adapter;

wherein when said shroud is rotated relative to the connector end, the contact between the teeth and bumps enable the connector end to be threadedly mated to said inner shroud.

20. System of claim 19, wherein the connector end is a part of a fluid connector that comprises a second end having a catheter in fluid communication with a patient.