Percutaneous catheter and guidewire having filter and medical device deployment capabilities

• US 6,676,682 B1
• Filed: 10/05/2000
• Issued: 01/13/2004
• Est. Priority Date: 05/08/1997
• Status: Expired due to Term

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Tsugita, Ross S., Maahs, Tracy D., Jang, Yue-Teh
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US09/679,911
• Time in Patent Office: 1,195 Days
• Field of Search: 606/200, 606/159, 606/127, 606/113, 606/114, 606/191, 606/198
• US Class Current: 606/200
• CPC Class Codes: A61B 2017/320716 comprising means for preventing embolism by dislodged material
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/0071 spherical
• CPC Class Codes: A61F 2230/0076 ellipsoidal or ovoid
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.

Claims

1. A guidewire filter device, comprising:

a guidewire;

a filter mesh including an open end; and

a strut disposed in a radially asymmetric pattern connecting the open end to the guidewire;

wherein an obtuse angle is formed between the strut and the guidewire.

2. The guidewire filter device in accordance with claim 1, wherein the filter mesh comprises a filter basket.

3. The guidewire filter device in accordance with claim 1, wherein the strut is a component of the guidewire.

4. The guidewire filter device in accordance with claim 1, wherein the strut is a component of the filter mesh.

5. A guidewire filter device, comprising:

a sheath including a proximal end, a distal end, and a lumen extending therethrough;

a guidewire disposed within the lumen;

a filter mesh including an open end, wherein the open end and the sheath are substantially concentric; and

no more than one strut connecting the open end to the guidewire;

wherein an obtuse angle is formed between the strut and the guidewire.

6. The guidewire filter device in accordance with claim 5, wherein the filter mesh comprises a filter basket.

7. The guidewire filter device in accordance with claim 5, wherein the strut is a component of the guidewire.

8. The guidewire filter device in accordance with claim 5, wherein the strut is a component of the filter mesh.