Project Description

 

The 2008-2009 Gore Capstone project includes the design and fabrication of a mechatronic catheter handle prototype. This prototype will utilize mechanical and electrical components to achieve the design requirements and specifications provided by W.L. Gore.

 

Typically, the catheter is used to deploy a medical device into the anatomy and is manually controlled and powered by the physician. Figure 1 shows a typical W.L. Gore delivery catheter.

 

 

 

 

 

 

 

 

 

The prototype developed for this project will replace the trailing end of the catheter with a mechatronic device. Click here to view an animation of a W. L. Gore Excluder endoprosthesis deployment.

 

W. L. Gore provided the team with project requirements and specifications. The project requirements are listed below:

 

Ease of Use 

 Usable for the 99 percentile of physicians per current ergonomic standards

 Intuitive to operate

 Physically easy to operate

Operational 

 Manipulate the given fibers and wires

 Maintain access port for 0.035 in. guide wire

 Order of operations must be followed

Optional

 Wire/fiber speed adjustability

 Display current step of procedure

 Provide method for manual actuation of wire/fiber

 

Table 1 shows the kinematic specifications provided by W.L. Gore.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1. W.L. Gore Delivery Catheter

Table 1: Kinematic Specifications

Gore Capstone Team 2009 | ME 476C / 486C

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Project Description

Design Process

Step

Description

1

Retract Fiber (A) 30 with a force > 3 lbs and speed of 10 cm/s

2

Multiple Retraction/Extension cycles of coated wire (B) for 60mm and a force >2 lbs and speed of 1-2 cm/s

3

Retract .014 wire (C) for 10 with a force >1 lbs and speed of 10 cm/s

4

Retract coated wire (B) for 10 and a force >2 lbs and speed of 10 cm/s

5

Retract Fiber (D) 30 with a force >3 lbs and speed of 10 cm/s