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Guidewire structure including a medical guidewire and method for using

A technology of guide wire and core wire, applied in the direction of catheter, application, guide wire, etc.

Inactive Publication Date: 2008-03-12
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unlike their use in the vasculature, the use of guidewires in GI tracts presents unique challenges

Method used

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  • Guidewire structure including a medical guidewire and method for using
  • Guidewire structure including a medical guidewire and method for using
  • Guidewire structure including a medical guidewire and method for using

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Embodiment Construction

[0043] Before describing several embodiments of the present invention in detail, it should be noted that the application or use of each embodiment is not limited to the details of construction and arrangement of components and steps set forth in the corresponding drawings and descriptions. The exemplary embodiments of the present invention may be implemented in combination with other embodiments, modifications and improvements, and may be realized or carried out in different ways. Furthermore, unless otherwise specified, the terms and expressions used herein have been chosen to describe exemplary embodiments of the present invention, for the convenience of the reader and not for the purpose of limiting the present invention.

[0044] It should also be understood that any one or more of the embodiments, examples, etc. described below can be combined with other embodiments, examples, etc. described below.

[0045] One embodiment of the guidewire structure 10 of the present inven...

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Abstract

A guidewire structure includes a medical guidewire and an overtube. The medical guidewire includes a first segment and a lengthwise-adjoining second segment. The overtube is adapted to slidably cover the first segment and to slidably expose the first segment. A minimum force required to slide the exposed first segment over patient tissue is greater than a minimum force required to slide the covered first segment over the patient tissue. A method for using a guidewire structure includes extending at least a portion of the second segment beyond a distal end of an insertion tube of an endoscope, extending at least a portion of the first segment beyond the distal end with the overtube covering the extended first segment, sliding the overtube off the extended first segment exposing the first segment, and advancing the insertion tube along the exposed and extended first segment further into a body lumen of a patient.

Description

technical field [0001] The present invention relates generally to guidewire structures, and in particular to a guidewire structure having a medical guidewire. Background technique [0002] Surgeons typically use endoscopes with long, flexible insertion tubes, such as gastroscopes or colonoscopes, to access and visualize tissue inside a patient's gastrointestinal tract (GI). For the upper GI, a surgeon may insert a gastroscope into the mouth of a sedated patient to examine and manipulate the tissues within the esophagus, stomach, and proximal duodenum. For the lower GI, a surgeon may insert a colonoscope through the anus of a sedated patient to examine the rectum and colon. Some endoscopes have a working channel in the insertion tube, typically about 2.5-3.5 mm in diameter, extending from a port at the handpiece to the distal portion of the insertion tube. A surgeon may insert medical devices into the working channel to aid in the diagnosis or treatment of tissue in the pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/01A61B17/94
CPCA61M2025/0293A61M2025/0062A61B1/2736A61M2025/09133A61M25/09
Inventor J·T·斯皮维G·J·巴科斯
Owner ETHICON ENDO SURGERY INC
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