Assemblies for identifying a power injectable access port

• US 9,937,337 B2
• Filed: 08/08/2014
• Issued: 04/10/2018
• Est. Priority Date: 04/27/2005
• Status: Active Grant

• Current Assignee: Bard Peripheral Vascular Incorporated (Becton, Dickinson & Co)
• Original Assignee: C.R. Bard, Inc. (Becton, Dickinson & Co)
• Inventors: Powers, Kelly B., Cise, David M., Hibdon, Dwight T., Evans, John G.
• Primary Examiner(s): LAURITZEN, AMANDA L
• Application Number:
  US14/455,660
• Publication Number:
  US 20140350396A1
• Time in Patent Office: 1,341 Days
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150748 Having means for aiding positioning of the piercing device at a location where the body is to be pierced means for aiding positioning of devices for bringing media into the body A61M5/427, locating blood vessels A61B5/489
• CPC Class Codes: A61B 5/153 Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 6/481 involving the use of contrast agents
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/325 Means obstructing the needle passage at distal end of a needle protection sleeve
• CPC Class Codes: A61M 2039/0009 Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation
• CPC Class Codes: A61M 2039/0045 Radiopaque indicia
• CPC Class Codes: A61M 2039/0054 Multiple layers
• CPC Class Codes: A61M 2039/0063 Means for alignment of the septum, e.g. septum rim with alignment holes
• CPC Class Codes: A61M 2039/0072 Means for increasing tightness of the septum, e.g. compression rings, special materials, special constructions
• CPC Class Codes: A61M 2039/0205 for injecting media
• 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 2039/0258 for vascular access, e.g. blood stream access
• CPC Class Codes: A61M 2039/027 having a particular valve, seal or septum septum A61M2039/0036
• CPC Class Codes: A61M 2039/0282 with implanted tubes connected to the port
• CPC Class Codes: A61M 2039/0288 protectors, caps or covers therefor
• CPC Class Codes: A61M 2205/32 with radio-opaque indicia
• CPC Class Codes: A61M 2205/6009 for matching patient with his treatment, e.g. to improve transfusion security
• CPC Class Codes: A61M 2205/6054 : Magnetic identification systems
• CPC Class Codes: A61M 2205/6081 : Colour codes
• 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 39/04 : having pierceable self-sealing members
• CPC Class Codes: A61M 5/007 : for contrast media
• CPC Class Codes: A61M 5/158 : Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• 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
• CPC Class Codes: A61M 5/3273 : freely sliding on needle shaft without connection to syringe or needle
• CPC Class Codes: Y10T 428/139 : Open-ended, self-supporting conduit, cylinder, or tube-type article

Abstract

A power-injectable access port suitable for injecting contrast media therethrough at a rate of at least 1 milliliter per second. The access port includes a housing, a septum, a reservoir, and an outlet stem in fluid communication with the reservoir. The power-injectable access port is structured for accommodating a pressure developed within the reservoir of at least 35 psi. The septum may include a radiopaque material forming a selected pattern when an x-ray is taken through the septum. The pattern may identify the access port as capable of accommodating injection of contrast media at a rate of at least 1 milliliter per second and/or as capable of accommodating a pressure developed within the reservoir of at least 35 psi. The pattern may identify the location of the septum following implantation of the power-injectable access port.

Claims

1. A power-injectable access port, comprising:

a housing structured for accommodating forces attendant to power injection such that the power-injectable access port is suitable for power injection;

a septum including a radiopaque material forming a selected pattern when an x-ray is taken through the septum, the selected pattern indicating that the housing of the power-injectable access port is suitable for accommodating forces attendant to power injection;

a reservoir; and

an outlet stem in fluid communication with the reservoir.

2. The power-injectable access port according to claim 1, wherein the selected pattern identifies a location of the septum following implantation of the power-injectable access port.

3. The power-injectable access port according to claim 1, wherein the selected pattern includes an alphanumeric character.

4. The power-injectable access port according to claim 1, wherein the selected pattern identifies the power-injectable access port as capable of accommodating injection of contrast media at a rate of between 1 milliliter per second and 5 milliliters per second.

5. The power-injectable access port according to claim 4, wherein the selected pattern further identifies the power-injectable access port as capable of accommodating a pressure developed within the reservoir of up to 180 psi.

6. The power-injectable access port according to claim 1, wherein the septum further comprises at least one structural reinforcement for limiting deformation of the septum in response to a pressure developed within the reservoir.

7. The power-injectable access port according to claim 6, wherein the at least one structural reinforcement comprises one or more extension legs of the septum.

8. The power-injectable access port according to claim 6, wherein the at least one structural reinforcement extends from an upper surface of the septum.

9. The power-injectable access port according to claim 6, wherein the at least one structural reinforcement includes at least one barb positioned at least partially within the septum.

10. The power-injectable access port according to claim 6, wherein the at least one structural reinforcement extends laterally through at least a portion of the septum.

11. The power-injectable access port according to claim 6, wherein the at least one structural reinforcement abuts or is proximate to at least a portion of an upper surface of the septum.

12. The power-injectable access port according to claim 6, wherein the at least one structural reinforcement forms a geometric figure.

13. The power-injectable access port according to claim 12, wherein the geometric figure is embedded within the septum.

14. The power-injectable access port according to claim 1, wherein the septum comprises a structural frame and a pliant material.

15. The power-injectable access port according to claim 14, wherein the structural frame comprises a material with a shore A hardness of 80 or more, and the pliant material comprises a shore A harness of 50 or less.

16. The power-injectable access port according to claim 14, wherein the structural frame comprises a plurality of apertures.

17. A power-injectable access port, comprising:

a septum designed to be repeatedly punctured with a suitable access mechanism, the septum including at least one identification attribute comprising a radiographic marker designed to indicate that a housing of the power-injectable access port is suitable for accommodating a particular fluid flow rate and forces attendant to power injection; and

the housing defining an aperture for capturing the septum, the housing and septum defining a reservoir, the housing structured for accommodating flow rates attendant to power injection such that the power-injectable access port is suitable for accommodating the particular fluid flow rate; and

an outlet stem in fluid communication with the reservoir.

18. The power-injectable access port according to claim 17, wherein the septum comprises silicone that seals, under suitable compression, passages formed by puncturing the septum, and wherein the septum is at least partially compressed to facilitate closure of passages formed by puncturing the septum with the access mechanism.

19. The power-injectable access port according to claim 17, wherein at least a portion of a peripheral region of the septum is coupled or affixed to the housing.

20. The power-injectable access port according to claim 17, wherein the radiographic marker indicates that the power-injectable access port is designed for accommodating a particular pressure.

21. The power-injectable access port according to claim 17, wherein the radiographic marker includes an alphanumeric character.

22. The power-injectable access port according to claim 17, wherein the housing comprises titanium.

23. The power-injectable access port according to claim 17, further comprising a cap and a base together defining the housing.

24. The power-injectable access port according to claim 23, wherein the septum is captured between the cap and the base.