Pre-slit injection site

• US 5,211,638 A
• Filed: 01/21/1992
• Issued: 05/18/1993
• Est. Priority Date: 01/25/1988
• Status: Expired due to Term

• Current Assignee: Baxter International Inc.
• Original Assignee: Baxter International Inc.
• Inventors: Jepson, Steven C., Finley, Michael J., Dudar, Thomas E., Graham, Peter L., Rollins, Richard A., Dobbie, Robert P.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): LEWIS, WILLIAM W
• Application Number:
  US07/823,498
• Time in Patent Office: 483 Days
• Field of Search: 604/84-86, 604/239-243, 604/271-274, 604/283, 604/405, 604/411-416
• US Class Current: 604/539
• CPC Class Codes: A61J 1/10 Bag-type containers
• CPC Class Codes: A61J 1/1406 Septums, pierceable membranes
• CPC Class Codes: A61J 1/1475 Inlet or outlet ports
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2037 having valve means
• CPC Class Codes: A61J 1/2044 having slits
• CPC Class Codes: A61J 1/2055 having gripping means
• CPC Class Codes: A61J 1/2089 Containers or vials which are to be joined to each other in order to mix their contents combinations of vial and syringe for mixing their contents A61J1/2096
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents
• CPC Class Codes: A61J 2200/10 Coring prevention means, e.g. for plug or septum piecing members
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• CPC Class Codes: A61M 2205/195 by the needle tip shape
• CPC Class Codes: A61M 2205/197 by the seal material
• CPC Class Codes: A61M 39/045 pre-slit to be pierced by blunt instrument
• CPC Class Codes: A61M 39/14 for connecting tubes having sealed ends needle sets A61M5/162; having valves closing automatically on disconnection of line A61M39/26
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14

Abstract

A pre-slit injection site includes a housing with a flow path therethrough. A first end of the housing carries a pre-slit septum. A second end of the housing carries a coupling component to adapt the site to standard vials. The coupling component, a vial adapter, includes an adapter spike with openings allowing for the drainage of fluid in the vial through the spike and into the injection site. The vial adapter is provided with a skirt housing unit which protects the adapter spike in manufacturing and use. The skirt housing unit also provides features to lockingly engage the adapter with injection site to standard vials, despite dimensional variations in vial closures. Another embodiment of the coupling component is a spike having a barb feature capable of insertion into a standard vial or port and resisting disengagement.

A blunt cannula is usable with the injection site combined with the coupling components.

Claims

1. An injection site usable with a blunt cannula comprising:

a housing defining a fluid flow channel therethrough, said housing having a first end and a second end;

a resilient sealing means, carried by said housing overlying said channel, for sealing said first end, said sealing means being formed with a resealable opening therein extending at least partway therethrough and an exterior peripheral surface;

a retaining means for retaining said sealing means in said housing such that a cannula can be sealingly inserted through said opening and placed in fluid flow communication with said flow channel and such that the cannula can be removed therefrom with said sealing means interacting with said retaining means so as to reseal said opening, said retaining means including a deformation of said housing first end against said exterior peripheral surface of said sealing means, said first end deformation applying axially directed forces to said sealing means;

a coupling component integral with said second end and continuing said fluid flow channel, said coupling component having a spike with a barb member, said spike capable of being inserted into a drug vial and provide drainage of the vial fluid through said fluid flow channel.

2. An injection site as in claim 1 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point.

3. An injection site as in claim 1 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point and a bore.

4. An injection site as in claim 3 wherein said bore includes three peripheral openings carried between said body and said center point.

5. An injection site usable with a blunt cannula comprising:

a housing defining a fluid flow channel therethrough, said housing having a first end and a second end;

a resilient sealing means, carried by said housing overlying said channel, for sealing said first end, said sealing means being formed with a resealable opening therein extending at least partway therethrough and an exterior peripheral surface;

a retaining means for retaining said sealing means in said housing such that a cannula can be sealingly inserted through said opening and placed in fluid flow communication with said flow channel and such that the cannula can be removed therefrom with said sealing means interacting with said retaining means so as to reseal said opening, said retaining means including a deformation of said housing first end against said exterior peripheral surface of said sealing means, said first end deformation applying axially directed forces to said sealing means;

a coupling component integral with said second end and continuing said fluid flow channel, said coupling component having a spike, said spike capable of being inserted into a drug vial and provide drainage of the vial fluid through said fluid flow channel.

6. An injection site as in claim 5 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point.

7. An injection site as in claim 5 wherein said spike comprises a substantially cylindrical, hollow body portion tapering to a solid center point and a bore.

8. An injection site as in claim 7 wherein said bore includes three peripheral openings carried between said body and said center point.

9. An injection site as in claim 5 wherein said spike includes a barb member.