Infusion catheter procedure and system

• US 8,708,993 B1
• Filed: 09/24/2004
• Issued: 04/29/2014
• Est. Priority Date: 10/15/2003
• Status: Expired due to Fees

• Current Assignee: Physician Technologies, Inc.
• Original Assignee: Physician Technologies, Inc.
• Inventors: Shapiro, Michael Evan
• Primary Examiner(s): Schmidt, Emily
• Assistant Examiner(s): Anderson, Michael J
• Application Number:
  US10/949,724
• Time in Patent Office: 3,504 Days
• Field of Search: 604/131, 604/93.01, 604/151, 604/20, 604/506, 604/512
• US Class Current: 604/506
• CPC Class Codes: A61M 19/00 Local anaesthesia syringes therefor A61M5/00; Hypothermia A61M5/42 takes precedence; cooling blood in a bypass of the arterial system A61M1/36
• CPC Class Codes: A61M 2005/3123 having air entrapping or venting means, e.g. purging channels in pistons
• CPC Class Codes: A61M 2005/3128 Incorporating one-way valves, e.g. pressure-relief or non-return valves
• CPC Class Codes: A61M 2005/3143 Damping means for syringe components executing relative movements, e.g. retarders or attenuators slowing down or timing syringe mechanisms
• CPC Class Codes: A61M 2039/2446 Flexible disc
• CPC Class Codes: A61M 5/141 with capillaries for restricting fluid flow
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1454 spring-actuated, e.g. by a clockwork

Abstract

The disclosure is directed toward an infusion catheter epidural system comprising a portable infusion pump configured to administer a combination of anesthetics and corticosteroid at a predetermined rate over a predetermined time. A catheter is fluidly coupled to the portable infusion pump. The catheter is configured to be maneuvered into a site of inflammation of a patient to deliver the combination of anesthetics and corticosteroid. The portable pump and the catheter are configured for attachment to the patient.

Claims

1. A method of treating inflammation in the epidural space of a patient, the method comprising:

providing an infusion pump;

accessing the epidural space of a patient with a needle;

maneuvering a catheter having radiopaque markers into the epidural space through the needle;

positioning the catheter within an inflamed region of the epidural space, wherein the positioning comprises viewing the radiopaque markers under fluoroscopy and injecting a radiopaque contrast media through the catheter and into the epidural space under fluoroscopy;

injecting a bolus dose of an anti-inflammatory agent into the epidural space through the catheter;

connecting the infusion pump to the catheter after the injection of the bolus dose;

securing the catheter to the patient to reduce the risk of any motion of the catheter; and

delivering a quantity of an anti-inflammatory agent from the infusion pump to the inflamed region of the epidural space through the catheter continuously over a period of time, wherein the volume of a fluid containing the anti-inflammatory agent delivered continuously over the period of time is greater than the volume of fluid containing the anti-inflammatory agent delivered in the bolus dose.

2. The method of claim 1, wherein the injecting of the bolus dose further comprising injecting an anesthetic.

3. The method of claim 2, wherein the anesthetic, the anti-inflammatory agent and saline are injected simultaneously as a bolus.

4. The method of claim 1, further comprising repositioning, if necessary, the location of the catheter within the epidural space after the injection of the radiopaque contrast media and prior to the connection of the infusion pump to the catheter.

5. The method of claim 1, further comprising putting the patient on an antibiotic during the period of time.

6. A method of treating inflammation in the epidural space of a patient, the method comprising:

accessing the epidural space of a patient using a needle;

maneuvering a catheter having radiopaque markers into the epidural space through the needle;

positioning the catheter within an inflamed region of the epidural space, wherein the positioning comprises viewing the radiopaque markers under fluoroscopy and injecting a radiopaque contrast media through the catheter and into the epidural space under fluoroscopy;

providing an infusion pump;

injecting a bolus dose of an anti-inflammatory agent into the epidural space through the catheter;

connecting the infusion pump to the catheter after the injection of the bolus dose;

delivering a quantity of an anti-inflammatory agent from the infusion pump to the inflamed region of the epidural space through the catheter continuously over a period of about 72 hours, wherein the quantity delivered from the infusion pump is of a greater volume than the bolus dose.

7. The method of claim 6, further comprising repositioning, if necessary, the location of the catheter within the epidural space after the injection of the radiopaque contrast media and prior to the connection of the infusion pump to the catheter.

8. The method of claim 6, further comprising injecting a bolus dose of anti-inflammatory agent to the epidural space prior to delivering the anti-inflammatory agent continuously over the period of time, wherein the volume of a fluid containing the anti-inflammatory agent delivered continuously over the period of time is about 1.5 times the volume of fluid containing the anti-inflammatory agent delivered in the bolus dose.

9. The method of claim 6, further comprising putting the patient on an antibiotic during the period of about 72 hours.