Portal assembly

• US 5,613,945 A
• Filed: 06/07/1995
• Issued: 03/25/1997
• 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): McDermott, Corrine M.
• Assistant Examiner(s): GRING, NOELLE K
• Application Number:
  US08/475,979
• Time in Patent Office: 657 Days
• Field of Search: 604/8, 604/9, 604/86, 604/93, 604/175, 604/905, 604/116, 604/80, 604/43, 604/280, 604/131, 604/132, 604/133, 604/140, 604/256, 604/244, 604/218, 604/201, 604/283, 604/200
• US Class Current: 604/288.02
• 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 portal assembly for connecting to a catheter comprising:

a port with a first resealable septum;

a first tube extending from the port, the first tube sized to be received inside the catheter;

wherein the port defines a plurality of suture holes, each suture hole having a first cylindrical passage, each suture hole having a lead-in sized larger than the first cylindrical passage and tapering to the first cylindrical passage; and

wherein the port further defines a plurality of depressions, each depression positioned adjacent one of the suture holes at an end opposite to an end defining the lead-in of each suture hole.

2. The portal assembly of claim 1, further comprising a connector for mounting the catheter to the first tube.

3. The portal assembly of claim 2, further comprising a catheter, the connector mounting the catheter to the first tube.

4. A portal assembly for connecting to a catheter comprising:

a port with a first resealable septum;

a first tube extending from the port, the first tube sized to be received inside the catheter; and

wherein the port defines an internal chamber, the septum permitting access to the internal chamber, the first tube in fluid communication with the internal chamber, the internal chamber including a bottom surface facing opposite the septum wherein the bottom surface is defined by a complex curve including a first large radius defining a central portion and second smaller radius defining a periphery around the central portion.

5. The portal assembly of claim 4, further comprising a connector for mounting the catheter to the first tube.

6. The portal assembly of claim 5, further comprising a catheter, the connector mounting the catheter to the first tube.

7. A portal assembly comprising:

a port with a first resealable septum and a second resealable septum, wherein the port includes first and second rings, the first ring surrounding the first septum, the second ring surrounding the second septum, the first ring having a first continuous portion having a cross-section defined by a first height projecting upward around the first septum, the second ring having a second continuous portion having a cross-section defined by a second height projecting upward around the second septum, the first height differently sized from the second height;

a first tube extending from the port; and

a second tube extending from the port.

8. The portal assembly of claim 7, wherein the first and second tubes are side by side, and further comprising a connector for mounting a catheter to the first and second tubes, the connector sized to surround both of the first and second tubes.

9. The portal assembly of claim 8, further comprising a catheter, the connector mounting the catheter to the first and second tubes.

10. The portal assembly of claim 7, wherein the cross-section of the first ring has a first width perpendicular to the first height, and the cross-section of the second ring has a second width perpendicular to the second height, the first width differently sized from the second width.

11. The portal assembly of claim 10, wherein the first height is larger than the second height, and the first width is larger than the second width.