Fluid delivery and treatment device and method of use

• US 10,350,386 B2
• Filed: 10/12/2015
• Issued: 07/16/2019
• Est. Priority Date: 09/07/2010
• Status: Active Grant

• Current Assignee: AngioDynamics, Inc.
• Original Assignee: AngioDynamics, Inc.
• Inventors: di Palma, Giorgio, Cartier, William A, Appling, William M
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): Engel, Matthew A
• Application Number:
  US14/880,344
• Publication Number:
  US 20160228681A1
• Time in Patent Office: 1,373 Days
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/22002 preventing restenosis
• CPC Class Codes: A61B 2017/22034 for gripping the obstruction or the tissue part from inside
• CPC Class Codes: A61B 2017/22082 after introduction of a substance
• CPC Class Codes: A61B 2017/22084 stone- or thrombus-dissolving
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0074 Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

A medical device system is provided herein which has an elongated, flexible hollow member with an expandable infusion segment attached at the most distal end of the device. The device has a plurality of fluid infusion ports on the expandable infusion segment for delivering an intended fluid to a target site in a body lumen. Additionally, a method is provided herein for infusing an intended fluid to a target site within a body lumen.

Claims

1. A method comprising the steps of:

inserting a treatment device into a vessel, the treatment device comprising a procedure sheath, an expandable infusion segment comprising a plurality of expandable arms, each having at least one pressure responsive infusion port in fluid communication with a fluid source, and an expandable capture sheath;

wherein the expandable infusion segment is configured to alternate between a first shape and a second shape and the at least one pressure responsive infusion port configured to open under a predetermined pressure;

advancing the expandable infusion segment to a site of a thrombus mass;

delivering fluid to the site of the thrombus mass through the at least one pressure responsive infusion port while the expandable infusion segment is at the first shape;

retracting the expandable infusion segment in a proximal direction, the expandable infusion segment bringing the thrombus mass into the expandable capture sheath; and

delivering an aspiration force through the treatment device for removal of the thrombus mass from the vessel.

2. The method of claim 1, wherein each of the plurality of expandable arms comprise at least one support element extending coaxially along each of the plurality of expandable arms.

3. The method of claim 1, wherein the expandable infusion segment is in the first shape when the procedure sheath is retracted proximally along the treatment device.

4. The method of claim 1, wherein the expandable infusion segment is in the second shape when the procedure sheath is advanced distally along the treatment device.

5. The method of claim 1, further comprising manipulating the expandable infusion segment to mechanically disrupt and separate the thrombus mass from a wall of the vessel after delivering fluid to the site of the thrombus mass.

6. The method of claim 1, further comprising positioning the expandable capture sheath proximal to the expandable infusion segment and the thrombus mass.