A method for reworking the outlet of a balloon catheter guide wire
A technology of balloon catheters and guide wires, which is applied in the direction of balloon catheters, catheters, medical devices, etc., can solve the problems of waste of production costs, high waste rate, poor appearance and size, etc., to achieve zero risk and save manufacturing The effect of cost, rework method is simple and easy
Active Publication Date: 2020-05-01
JW MEDICAL SYSTEMS LTD
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- Application Information
AI Technical Summary
Problems solved by technology
Since the structure of the guide wire outlet is relatively complicated, involving the cooperation of the inner tube, the outer tube, and the transition tube, and the combined bonding of the two guide wires, the guide wire outlet is very easy to appear during processing. Poor appearance and size, etc., resulting in a high scrap rate, resulting in a huge waste of production costs
Method used
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Embodiment Construction
[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] Figure 1~6 A method for reworking the outlet of a balloon catheter guide wire is shown, and its specific steps are:
[0030] Step 1. Cut off the guide wire outlet of the balloon catheter along the incision 8, so that the balloon catheter is divided into a balloon-external lumen part and a transition tube-hypo tube-seat part;
[0031] Step Ⅱ, rework of the balloon-outer lumen part:
[0032] a. Use a reamer to expand the incision end of the outer lumen tube 1. The dilation depth of the reamer outer lumen tube 1 is 1.5 mm to 2 mm; then slowly move out the reamer;
[0033] b. Insert the flat mouth guide wire 6 into the pretreated transition tube 3, and then insert the transition tube 3 and the flat mouth guide wire 6 into the expanded external lumen tube 1, so that the insertion depth of the transition tube 3 is 1.8 mm to 2mm, ...
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The invention discloses a reworking method of a balloon catheter guide wire outlet. The reworking method includes the steps: cutting off the balloon catheter guide wire outlet and dividing a balloon catheter into a balloon-external cavity tube portion and a transition tube-wave tube-seat portion; reworking the balloon-external cavity tube portion, seamlessly combining an internal cavity tube bodywith internal cavity tube scrap, and then combining the reworked wave tube-seat portion together with the balloon-external cavity tube portion through a transition tube. Reworking can be performed according to defects of the guide wire outlet in the production process of the balloon catheter. As the balloon catheter is an expensive fine product, a large quantity of raw materials such as inflatableballoons, external cavity tubes, internal cavity tubes, wave tubes and seats can be saved by the method, the manufacturing cost of a single balloon catheter is saved by about 98%, and the reworking method is simple, easy and zero in risk.
Description
technical field [0001] The invention relates to a rework method, in particular to a rework method for a guide wire outlet of a balloon catheter. Background technique [0002] The balloon catheter is an interventional medical device, and its function is like the sewer is blocked or narrowed, causing the water flow to be blocked, and the tool is sent to the blocked or narrowed position to unblock it. The structure of the balloon catheter from the distal end to the tip is the seat, the hypotube, the transition tube, the outer lumen tube, the expansion balloon, and the tip of the catheter, and the outer lumen tube, the expansion balloon, and the tip of the catheter are also inserted with an inner tube. Lumen for easy passage of guide wire. [0003] During cardiovascular surgery, the guide wire is inserted from the tip of the balloon catheter delivery system and passed out from the guide wire outlet through the lumen tube, which acts as a track for the catheter delivery system o...
Claims
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IPC IPC(8): A61M25/10A61M25/00
CPCA61M25/1027A61M25/1036A61M2205/15A61M2207/00A61M2210/12A61M2210/005
Inventor 于得水蔡传奇于姜王小好于洋姜启凤
Owner JW MEDICAL SYSTEMS LTD