Variable tip catheter

• US 6,767,338 B2
• Filed: 03/06/2003
• Issued: 07/27/2004
• Est. Priority Date: 10/24/2000
• Status: Active Grant

• Current Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Harris, Chad, Hawk, Matthew, Larson, Scott, Mickley, Timothy J.
• Primary Examiner(s): Gartenberg, Ehud
• Assistant Examiner(s): FASTOVSKY, LEONID M
• Application Number:
  US10/379,591
• Publication Number:
  US 20030144629A1
• Time in Patent Office: 509 Days
• Field of Search: 604/164.01, 604/95, 604/540, 604/528, 604/164.02, 604/104, 604/264
• US Class Current: 604/164.01
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/22069 Immobilising; Stabilising
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence
• CPC Class Codes: A61B 2017/348 Means for supporting the trocar against the body or retaining the trocar inside the body
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation
• CPC Class Codes: A61B 2018/00738 Depth, e.g. depth of ablation
• CPC Class Codes: A61B 2090/036 abutting on tissue or skin
• CPC Class Codes: A61B 2218/002 Irrigation
• CPC Class Codes: A61M 2025/1093 having particular tip characteristics
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• 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

Abstract

A therapeutic catheter is provided. This therapeutic catheter may include an outer tube with a distal piercing end and a first lumen which may have a stop positioned within it. The first lumen may also have a plug positioned within it wherein the stop may have an inside diameter smaller than the inside diameter of the first lumen and the plug may be sized to prevent travel of the stop outside of the distal end of the outer tube.

Claims

1. A therapeutic catheter system comprising:

a first tube having a proximal region, a distal region and a piercing tip;

a second tube having, a wall, an overall length, and an atraumatic distal region,

the atraumatic distal region including collapsible wings, which when collapsed, shorten the length of the second tube,

the first tube and the second tube being slidably engaged with each other.

2. The therapeutic catheter system of claim 1, wherein the collapsible wings are formed from the wall of the second tube.

3. The therapeutic catheter system of claim 1, wherein the collapsible wings are elastic.

4. The therapeutic catheter system of claim 1, wherein the collapsible wings extend beyond the wall of the second tube when the collapsible wings are in a collapsed position.

5. The therapeutic catheter system of claim 1, wherein the first tube is slidable within the second tube.

6. The therapeutic catheter system of claim 1, wherein the collapsible wings are positioned at the distal end of the second tube.

7. The therapeutic catheter system of claim 1, wherein the second tube is slidable within the first tube.

8. The therapeutic catheter system of claim 1, wherein the second tube has an open end and a closed end the open end containing the collapsible wings.

9. The therapeutic catheter system of claim 8 further comprising a third tube slidable relative to the first tube and the second tube.