Access port identification systems and methods

• US 7,959,615 B2
• Filed: 01/31/2008
• Issued: 06/14/2011
• Est. Priority Date: 03/04/2005
• Status: Active Grant

• Current Assignee: Bard Peripheral Vascular Incorporated (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Stats, Jason R., Powers, Kelly B.
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): Berdichevsky; Aarti B
• Application Number:
  US12/023,280
• Publication Number:
  US 20080140025A1
• Time in Patent Office: 1,230 Days
• Field of Search: 604/288.01, 604/288.02
• US Class Current: 604/288.02
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61M 2039/0045 Radiopaque indicia
• 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 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• 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 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61M 5/007 for contrast media

Abstract

An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature.

Claims

1. An access port for providing subcutaneous access to a patient, comprising:

a body defining a cavity accessible by inserting a needle through a septum, the body including a plurality of side surfaces and a bottom surface bounded by a bottom perimeter, the bottom surface on a side of the port opposite the septum, the bottom perimeter including a concave portion, the side surfaces including a first side surface through which an outlet stem extends; and

at least one structural feature of the access port identifying the access port subsequent to subcutaneous implantation as a particular type of access port, the at least one structural feature comprising a concave side surface in a second side surface different from the first side surface, the concave side surface extending to the bottom perimeter concave portion.

2. The access port of claim 1, wherein the body has a generally quadrilateral exterior.

3. The access port of claim 1, wherein the first side surface is connected to the second side surface by a first radius.

4. The access port of claim 1, wherein the at least one structural feature further comprises a concave side surface in a third side surface different from the first and second side surfaces.

5. The access port of claim 4, wherein the first side surface is connected to the second side surface by a first radius, and the second side surface is connected to the third side surface by a second radius.

6. The access port of claim 4, wherein the at least one structural feature further comprises a concave side surface in a fourth side surface different from the first, second, and third side surfaces.

7. The access port of claim 6, wherein the first side surface is connected to the second side surface by a first radius, the second side surface is connected to the third side surface by a second radius, the third side surface is connected to the fourth side surface by a third radius, and the fourth side surface is connected to the first side surface by a fourth radius.

8. An access port for providing subcutaneous access to a patient, comprising:

a body defining a cavity accessible by inserting a needle through a septum, the body including a plurality of side surfaces and a bottom surface bounded by a bottom perimeter, the bottom surface on a side of the port opposite the septum, the bottom perimeter including a concave portion, the side surfaces including a first side surface through which an outlet stem extends; and

at least one structural feature of the access port identifying the access port as being power injectable subsequent to subcutaneous implantation, the at least one structural feature comprising at least one concave side surface in a second side surface different from the first side surface, the concave side surface extending to the bottom perimeter concave portion.

9. The access port of claim 8, wherein the body has a generally triangular exterior.

10. A method of identifying a subcutaneously implanted access port, comprising:

palpating a subcutaneously implanted access port,

wherein the port comprises a body including a plurality of side surfaces, wherein one of the plurality of side surfaces includes an outlet stem extending therefrom;

feeling at least one structural feature of the subcutaneously implanted access port, the at least one structural feature comprising one or more concave side surfaces in side surfaces different from the side surface through which the outlet stem extends, each of said one or more concave side surfaces extending to a concave portion in a bottom perimeter of a bottom surface; and

identifying the type of subcutaneously implanted access port through the feeling of the at least one structural feature.

11. The method of claim 10, wherein the step of identifying the type of subcutaneously implanted access port comprises identifying the subcutaneously implanted access port as being a power injectable access port.