INFUSION TREATMENT AGENTS, CATHETERS, FILTER DEVICES, AND OCCLUSION DEVICES, AND USE THEREOF

• US 20090018498A1
• Filed: 10/24/2007
• Published: 01/15/2009
• Est. Priority Date: 03/12/2003
• Status: Abandoned Application

• Current Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Inventors: Chan, Gregory Waimong, Schaible, Stephen G., Chiu, Jessica G., Hatten, Thomas R., Chow, Mina, Shen, Yan, Bei, Nianjiong Joan, Bly, Mark J., Gesswein, Douglas, Asongwe, Gabriel, Bai, Hongzhi, Webler, William E., Esselstein, Robert C., Sridharan, Srinivasan
• Application Number:
  US11/923,411
• Publication Number:
  US 20090018498A1
• Time in Patent Office: Days
• US Class Current: 604/97.20
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence

Abstract

Embodiments include an infusion-occlusion system having a delivery catheter, a guide catheter adapted to receive the delivery catheter, and a guidewire with an occlusion device adapted to be received within the guide catheter. The guide catheter of the catheter kit may be provided with an occlusion device at the distal end of the guide catheter. The delivery catheter may have an accessory lumen, coaxial or co-linear lumen, a supporting mandrel, or an occlusion device at its distal end. Moreover, according to some embodiments, occlusion devices may be a single material or a composite balloon having an inner liner and an outer layer of different materials, a high compliance low pressure balloon, or a filter device that restricts particles from passing through but does not restrict fluid, such as blood. An inflation device with a large volume and low volume syringe can be used to inflate the balloon.

Claims

1. An apparatus to inflate a low volume balloon to occlude a blood vessel, the balloon coupled to a distal end of a cannula having an inflation lumen extending from the balloon to a proximal end of the cannula and through a proximal exit in the cannula, the apparatus comprising:

a large volume syringe comprising an elongated hollow body having a proximal end, a distal end, an opening in the distal end to couple to the proximal exit of the cannula, and a first plunger longitudinally slidable within the body and having a first shaft with a first piston disposed on the first shaft distal end, the piston and shaft having an elongated hollow inner diameter;

a second plunger longitudinally slidable within the inner diameter and having a second shaft with a second piston disposed on the second shaft distal end;

wherein the inner diameter and second plunger define a low volume syringe having a volume relatively substantially less than a volume of the large volume syringe.

2. The apparatus of claim 1 further comprising a first lock mechanism to releasably secure the first plunger to lock the first piston at least one location along the hollow body, a second lock mechanism to releasably secure the second plunger to lock the second piston at least one location along the hollow inner diameter, and at least one latch mechanism to unlatch the second lock mechanism from the hollow inner diameter to move the second piston towards the proximal end of the hollow body to evacuate a selected volume of fluid from the balloon into the low volume syringe.

3. The apparatus of claim 1 wherein the second lock mechanism includes an adjustment mechanism to adjust the position of the second piston to at least one location along the hollow inner diameter;

and wherein the adjustment mechanism includes a threaded cavity coupled to a knob exterior to the large volume syringe and a bolt portion threadably engaging the cavity and coupled to the second plunger such that the second piston may be adjusted to at least one location along the hollow inner diameter by rotating the knob.

4. The apparatus of claim 3 wherein rotation of the knob from a first position to a balloon volume position delivers a selected volume of fluid to the balloon, and rotation of the knob from the balloon volume position back to the first position evacuates a selected volume fluid from the balloon into the low volume syringe.