Methods of performing a power injection procedure including identifying features of a subcutaneously implanted access port for delivery of contrast media

• US 8,805,478 B2
• Filed: 04/07/2009
• Issued: 08/12/2014
• 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., Beasley, Jim C., Sheetz, Kevin W., Gerondale, Jay, Rome, Guy
• Primary Examiner(s): Jung, Unsu
• Assistant Examiner(s): LAURITZEN, AMANDA L
• Application Number:
  US12/419,854
• Publication Number:
  US 20090216216A1
• Time in Patent Office: 1,953 Days
• Field of Search: 600/407, 600/425, 600/420, 600/423, 600/431, 600/426, 600/433, 600/434, 600/427, 600/435, 604/131, 604/890.1
• US Class Current: 600/427
• 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

Methods of performing a power injection procedure are described. One method includes taking an x-ray of a subcutaneously implanted access port in a patient to determine whether the access port includes a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least about 1 milliliter per second through the access port, identifying the indicating radiographic feature on the x-ray, and flowing a fluid through the access port at a rate of at least about 1 milliliter per second.

Claims

1. A method of performing a power injection procedure, comprising:

taking an x-ray of a subcutaneously implanted access port in a patient to determine whether the access port includes a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port, the access port defining one or more fluid reservoirs, each fluid reservoir accessible through a cannula-penetrable septum;

identifying the indicating radiographic feature on the x-ray; and

flowing a fluid through the access port at a rate of at least 1 milliliter per second.

2. The method according to claim 1, wherein the identifying step comprises identifying a radiographic pattern included in the cannula-penetrable septum of the access port.

3. The method according to claim 1, wherein the identifying step comprises identifying a radiographic letter.

4. The method according to claim 1, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by palpating to feel a structural feature of the access port indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

5. The method according to claim 1, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by visually perceiving information outside of the body of the patient included on an element selected from the group consisting of a key chain, a bracelet, a wrist band, a sticker provided on a patient'"'"'s chart, a patient ID card, a label provided on packaging of the access port, and combinations thereof, the element indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

6. The method according to claim 1, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by detecting a radiofrequency identification (RFID) tag associated with the implanted access port, the RFID tag signaling that the access port is suitable for flowing fluid at a rate of at least about 1 milliliter per second through the access port.

7. The method according to claim 1, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by detecting an ultrasound-detectable feature associated with the implanted access port, the ultrasound-detectable feature indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

8. A method of performing a power injection procedure, comprising:

providing an access port including a cannula-impenetrable housing and a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port;

implanting the access port in a subcutaneous pocket formed under a patient'"'"'s skin;

taking an image of the implanted access port via imaging technology;

identifying the access port as being suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port via the image of the radiographic feature of the access port; and

injecting contrast media fluid through the access port at a rate of at least 1 milliliter per second.

9. The method according to claim 8, wherein the identifying step comprises identifying a radiographic letter.

10. The method according to claim 8, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by palpating to feel a structural feature of the access port indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

11. The method according to claim 8, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by visually perceiving information outside of the body of the patient included on an element selected from the group consisting of a key chain, a bracelet, a wrist band, a sticker provided on a patient'"'"'s chart, a patient ID card, a label provided on packaging of the access port, and combinations thereof, the element indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

12. The method according to claim 8, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by detecting an RFID tag associated with the implanted access port, the RFID tag signaling that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

13. The method according to claim 8, further comprising the step of confirming that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second by detecting an ultrasound-detectable feature associated with the implanted access port, the ultrasound-detectable feature indicating that the access port is suitable for flowing fluid at a rate of at least 1 milliliter per second through the access port.

14. A method of performing a power injection procedure, comprising:

implanting an access port including a fluid reservoir accessible through a septum and a radiographic feature, the radiographic feature indicating that the access port is capable of handling pressures associated with power injection;

taking an image of the implanted access port via imaging technology;

identifying the access port as capable of handling pressures associated with power injection via the image of the radiographic feature of the access port;

palpating the access port to identify the location of the septum;

inserting a needle through a septum, the needle connected to tubing and in fluid communication therewith, the needle and tubing structured to accommodate a fluid pressure of at least 400 psi; and

injecting contrast media fluid through the tubing and needle to induce a pressure within the access port in the range of 37 psi and 65 psi.