A method of removing slag formed during laser cutting a hypotube may include flowing cooling gas into a laser nozzle, directing flow of the cooling gas onto an external surface of the hypotube, and injecting cooling fluid into an inner lumen of the hypotube at a velocity. Flowing the cooling gas and
A method of removing slag formed during laser cutting a hypotube may include flowing cooling gas into a laser nozzle, directing flow of the cooling gas onto an external surface of the hypotube, and injecting cooling fluid into an inner lumen of the hypotube at a velocity. Flowing the cooling gas and injecting the cooling fluid may at least partially remove slag from the external surface of the hypotube.
대표청구항▼
1. A method of removing slag formed during laser cutting a hypotube, the method comprising: flowing cooling gas onto an external surface of the hypotube using a gas cooling system, wherein flowing the cooling gas reduces a heat impact puddle,wherein flowing the cooling gas reduces a heat impact zone
1. A method of removing slag formed during laser cutting a hypotube, the method comprising: flowing cooling gas onto an external surface of the hypotube using a gas cooling system, wherein flowing the cooling gas reduces a heat impact puddle,wherein flowing the cooling gas reduces a heat impact zone, andwherein the cooling gas has a temperature between 20° C. and 25° C.;injecting water into an inner lumen of the hypotube at a velocity to inhibit a portion of slag from adhering to the inner lumen of the hypotube, wherein injecting the water into the inner lumen of the hypotube includes controlling the velocity, wherein controlling the velocity includes delivering the water from a water supply to the inner lumen of the hypotube through a plurality of water injection tubes arranged in series proximate to the hypotube to distant to the hypotube, each of the plurality of water injection tubes having a diameter, the diameter of each of the plurality of water injection tubes more proximate to the hypotube being smaller than the diameter of each of the plurality of water injection tubes distant to the hypotube,wherein flowing the cooling gas and injecting the water removes the slag from the external surface of the hypotube; andcollecting the removed slag in a slag collecting device,wherein the method is performed during laser cutting of the hypotube. 2. The method of claim 1, wherein the cooling gas comprises ambient air. 3. The method of claim 1, wherein the cooling gas comprises inert gas. 4. The method of claim 1, further comprising flowing cooling gas onto a cut hypotube collection device. 5. The method of claim 1, wherein the plurality of injection tubes consists essentially of four water injection tubes. 6. A method of removing slag formed during laser cutting a hypotube, the method comprising: flowing cooling gas into a laser nozzle;directing flow of the cooling gas onto an external surface of the hypotube; andinjecting cooling fluid into an inner lumen of the hypotube at a velocity, wherein injecting the cooling fluid into the inner lumen of the hypotube includes controlling the velocity,wherein flowing the cooling gas and injecting the cooling fluid at least partially removes slag from the external surface of the hypotube, andwherein controlling the velocity comprises injecting the cooling fluid through a plurality of injection tubes arranged in a series of sequentially smaller diameters with distance to the hypotube. 7. The method of claim 6, wherein the cooling gas comprises ambient air. 8. The method of claim 6, wherein the cooling gas has an ambient temperature. 9. The method of claim 6, wherein flowing the cooling gas into the laser nozzle is performed continuously during the entire laser cutting process. 10. The method of claim 6, wherein the velocity is configured to inhibit the slag from sedimenting in the inner lumen of the hypotube. 11. The method of claim 6, wherein the method is only performed during a portion of the laser cutting process. 12. The method of claim 6, wherein the cooling gas comprises inert gas. 13. The method of claim 6, wherein the cooling fluid comprises cooling liquid. 14. The method of claim 13, wherein the cooling liquid comprises water. 15. The method of claim 13, wherein the cooling liquid comprises slurry. 16. The method of claim 13, wherein the cooling liquid comprises ethylene glycol. 17. The method of claim 6, wherein flowing the cooling gas reduces a heat impact puddle. 18. The method of claim 6, wherein flowing the cooling gas reduces a heat impact zone. 19. The method of claim 6, wherein the cooling gas has a temperature between 20° C. and 25° C. 20. The method of claim 6, wherein the plurality of injection tubes consists essentially of four water injection tubes.
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