Directional Anchoring Mechanism, Method And Applications Thereof

• US 20120232487A1
• Filed: 05/18/2012
• Published: 09/13/2012
• Est. Priority Date: 02/09/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Averbuch, Dorian
• Granted Patent: US 10,173,043 B2
• Time in Patent Office: Days
• US Class Current: 604/174
• CPC Class Codes: A61B 2017/22071 Steering
• CPC Class Codes: A61M 2025/0057 Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings
• CPC Class Codes: A61M 2025/0089 Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip
• CPC Class Codes: A61M 2025/1013 with concentrically mounted balloons, e.g. being independently inflatable
• CPC Class Codes: A61M 2025/105 having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
• CPC Class Codes: A61M 2025/1075 having a balloon composed of several layers, e.g. by coating or embedding
• CPC Class Codes: A61M 2025/1081 having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
• CPC Class Codes: A61M 25/0105 Steering means as part of the catheter or advancing means; Markers for positioning systems for detection of markers A61B
• CPC Class Codes: A61M 25/0133 Tip steering devices
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• 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 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 37/0069 Devices for implanting pellets, e.g. markers or solid medicaments for introducing of radioactive sources for interstitial radiation therapy, i.e. brachytherapy A61N5/1027

Abstract

An anchoring mechanism and method for anchoring a device within a biological conduit include an expandable element configured for retaining the device at a desired angle relative to a central axis of the biological conduit. A steering mechanism is preferably provided for orienting the device prior to operation of the anchoring mechanism. The anchoring mechanism and method are employed in drug delivery devices, brachytherapy devices or for anchoring a catheter or sheath to provide a working channel for reliable guidance of a wide range of tools to a target location within the body.

Claims

1. An anchoring cage for deployment in a biological conduit comprising:

a cage body configured to act against an interior surface of a biological conduit in a predefined orientation relative to a central axis of a biological conduit; and

a lumen formed through the cage body for accepting a distal portion of a catheter and oriented such that a central axis of the lumen is non-parallel to the central axis of the biological conduit.

2. The anchoring cage of claim 1, wherein said anchoring cage is permanently attachable to said catheter distal portion when said catheter distal portion is inserted into said lumen.

6. The instrument of claim 1, wherein the anchoring cage is configured to expand to an anchoring state and contract to a retracted state.

3. The anchoring cage of 1, wherein the anchoring cage comprises at least one filamentous element.

4. The instrument of claim 3, wherein the filamentous element comprises a material selected from the group of materials comprising:

stainless steel and Nitinol.

5. The instrument of claim 3, wherein the filamentous element is woven.