Catheter connector

• US 5,632,729 A
• Filed: 06/06/1995
• Issued: 05/27/1997
• Est. Priority Date: 01/21/1994
• Status: Expired due to Term

• Current Assignee: Smiths Medical ASD, Inc. (Smiths Group International Holdings Ltd.)
• Original Assignee: Sims Deltec, Inc.
• Inventors: Johnson, Theodore A., Beling, William L., Glantz, Jerald, Cai, Qingsheng
• Primary Examiner(s): Buiz, Michael Powell
• Assistant Examiner(s): GRING, NOELLE K
• Application Number:
  US08/467,183
• Time in Patent Office: 721 Days
• Field of Search: 604/93, 604/905, 604/94, 604/175, 604/264, 604/280, 604/283, 129/912, 285/53, 285/86
• US Class Current: 604/288.01
• CPC Class Codes: A61M 2039/0211 with multiple chambers in a single site
• CPC Class Codes: A61M 2039/1033 Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276
• CPC Class Codes: A61M 39/12 for joining a flexible tube to a rigid attachment

Abstract

A portal assembly includes a port with at least one resealable septum, and a tube extending from the port with the tube being sized to be received inside a catheter, an angled surface surrounding the tube wherein the angled surface diverges away from the tube in a direction away from the port, and sleeve structure for forcing the end of the catheter into the angled surface, thereby forcing the end of the catheter radially inwardly toward the tube and forming a thickened portion adjacent the end of the catheter to seal and hold the catheter. In a dual port construction, the outlet tube are parallel to one another at their distal ends, and the sleeve structure forces the end of the catheter into the angled surface, thereby forcing the end of the catheter radially inwardly toward the tubes and forming a thickened portion adjacent the end of the catheter to seal and hold the catheter and to prevent cross-talk between lumens of a dual lumen catheter.

Claims

1. A connector for a catheter comprising:

a base arrangement including;

a tube extending from the base arrangement and terminating at an end, the tube sized to be received inside the catheter; and

a concavely shaped surface surrounding the tube, the concavely shaped surface diverging away from the tube in a direction away from the base arrangement, the concavely shaped surface sized to engage an end of the catheter; and

a sleeve arrangement mounted to the base arrangement and engageable with the catheter, the sleeve arrangement defining an inside diameter smaller than an outside diameter of the end of the catheter when the end of the catheter is positioned on the end of the tube.

2. The connector of claim 1, wherein the sleeve arrangement includes a convexly shaped tip diverging away from the base arrangement, the convexly shaped tip facing generally toward the concavely shaped surface of the base arrangement, the convexly shaped tip positioned to engage a portion of the catheter adjacent to the end.

3. The connector of claim 1, wherein the base arrangement further includes a second tube extending from the base arrangement generally parallel to the first tube, and the concavely shaped surface also surrounds the second tube.

4. The portal assembly of claim 1, wherein the sleeve arrangement includes:

a sleeve having an end engageable with the catheter; and

a lock ring surrounding a portion of the sleeve, the lock ring rotatably mounted to the sleeve, the lock ring mounted to the base arrangement.

5. The connector of claim 4, wherein the lock ring is longitudinally moveable relative to the sleeve.

6. The connector of claim 5, wherein the base arrangement includes a bayonet extending away from the base arrangement, and wherein the lock ring includes a cam slot for receiving the bayonet, the cam slot including an angled portion, the cam slot including an overcenter portion.

7. The connector of claim 1, wherein the base arrangement includes a bayonet extending from the base arrangement, and wherein the sleeve arrangement includes a cam slot for receiving the bayonet, the cam slot including an angled portion, the cam slot including an overcenter portion.

8. A connector for a catheter comprising:

a base arrangement including;

a tube extending from the base arrangement and terminating at an end, the tube sized to be received inside the catheter; and

a surface surrounding the tube positioned to engage an end of the catheter;

a sleeve engageable with the catheter, the sleeve defining an inside diameter smaller than an outside diameter of the end of the catheter when the end of the catheter is positioned on the end of the tube; and

a lock ring surrounding at least a portion of the sleeve, the lock ring rotatably mounted to the sleeve, the lock ring further being slideably mounted to the sleeve in a longitudinal direction, the lock ring mounted to the base arrangement.

9. The connector of claim 8, wherein the base arrangement further includes a bayonet extending away from the base arrangement and the lock ring including a cam slot for receiving the bayonet, the cam slot including an angled portion, the cam slot including an overcenter portion.

10. The connector of claim 8, wherein the base arrangement further includes a second tube extending from the base arrangement generally parallel to the first tube, and the surface also surrounding the second tube.

11. A connector for a catheter comprising:

a base arrangement including;

a tube extending from the base arrangement and terminating at an end, the tube sized to be received inside the catheter;

a surface surrounding the tube positioned to engage an end of the catheter; and

a bayonet extending from the base arrangement; and

a sleeve arrangement engageable with the catheter, the sleeve arrangement defining an inside diameter smaller than an outside diameter of the end of the catheter when the end of the catheter is positioned on the end of the tube, the sleeve arrangement including a cam slot for receiving the bayonet, the cam slot including an angled portion, the cam slot including an overcenter portion.

12. The connector of claim 11, wherein the base arrangement further includes a second tube extending from the base arrangement generally parallel to the first tube, and the surface also surrounding the second tube.