Radiopaque and septum-based indicators for a multi-lumen implantable port

• US 10,086,186 B2
• Filed: 02/24/2017
• Issued: 10/02/2018
• Est. Priority Date: 11/07/2007
• Status: Active Grant

• Current Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Evans, John G., Vader, Mark H., Amin, Murtaza Y., Cise, David M., Christian, Kelly J.
• Primary Examiner(s): Bosworth, Kami A
• Application Number:
  US15/442,371
• Publication Number:
  US 20170157383A1
• Time in Patent Office: 585 Days
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61M 2039/0211 with multiple chambers in a single site
• CPC Class Codes: A61M 2039/0238 having means for locating the implanted device to insure proper injection, e.g. radio-emitter, protuberances, radio-opaque markers
• CPC Class Codes: A61M 2205/0211 Ceramics
• CPC Class Codes: A61M 2205/32 with radio-opaque indicia
• 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 5/007 for contrast media

Abstract

An implantable multi-lumen access port including indicators for ascertaining characteristics of the port is disclosed. In one embodiment, the access port comprises a housing that defines a first reservoir and a second reservoir. A first septum and second septum are respectively coupled with the housing to provide selective access to the first and second reservoirs. Each septum includes a plurality of protrusions defined about a periphery thereof that are palpable after implantation of the port in a patient to determine a relative position of the first septum with respect to the second septum. A radiographically observable indicator is also included on a base of the housing, so as to provide information relating to a characteristic of the dual-lumen port, such as suitability for power injection of fluids. The indicator in one embodiment includes a substantially rigid radiopaque component.

Claims

1. A method for identifying a position and an orientation of a subcutaneously implanted multi-lumen access port, the multi-lumen access port including a first septum and a second septum coupled to a housing, the method comprising:

palpating the subcutaneously implanted multi-lumen access port to locate a first sub-pattern of protrusions on the first septum covering a first reservoir;

palpating the subcutaneously implanted multi-lumen access port to locate a second sub-pattern of protrusions different from the first sub-pattern of protrusions on the second septum covering a second reservoir; and

imaging the subcutaneously implanted multi-lumen access port to identify a radiographic indicator included with the subcutaneously implanted multi-lumen access port, the radiographic indicator comprising a first portion and a second portion, wherein the first portion includes information regarding the first sub-pattern, wherein the second portion includes information regarding the second sub-pattern, and wherein the first and second portions together indicate that the subcutaneously implanted multi-lumen access port is suitable for power injection.

2. The method according to claim 1, wherein the first and second portions indicate an orientation of the subcutaneously implanted multi-lumen access port.

3. The method according to claim 1, wherein the first portion is integrally formed with the second portion.

4. The method according to claim 1, wherein the radiographic indicator includes a recess defined in the housing, the recess being radiographically visible relative to other portions of the housing.

5. The method according to claim 4, wherein the housing includes titanium.

6. The method according to claim 1, wherein the first portion and the second portion are triangularly shaped.

7. The method according to claim 1, wherein the radiographic indicator includes alphanumeric indicia.

8. The method according to claim 7, wherein the alphanumeric indicia includes a letter “

C” and

a letter “

T. ”

9. The method according to claim 7, wherein the alphanumeric indicia are in a reverse configuration such that the alphanumeric indicia are in a non-reverse configuration when viewed on a radiographic image.

10. The method according to claim 1, wherein the radiographic indicator is received in a cavity defined on a bottom surface of the housing.

11. The method according to claim 10, wherein the radiographic indicator is attached to the housing within the cavity by ultrasonic bonding.

12. The method according to claim 1, wherein the radiographic indicator provides information relating to a number of septa included in the subcutaneously implanted multi-lumen access port.

13. The method according to claim 1, wherein the radiographic indicator includes a radiopacity relatively greater than that of the housing.

14. The method according to claim 1, wherein the radiographic indicator includes a radiopacity relatively less than that of the housing.