1. A catheter shaft comprising:
a first tube including an inflation lumen defined by an inside wall surface in fluid contact with a dilation balloon, an outside wall surface, the first tube having an orifice in a portion of the first tube, the first tube formed of a first material;
a second tube inserted through the orifice and extending distally from the orifice inside the inflation lumen, the second tube comprising an inner layer, an outer layer and an intervening intermediate layer, the second tube having a length and a lumen therethrough, the inner layer defining an inner wall surface, the outer layer defining an outside wall surface; and
a bonding region wherein the second tube outside wall surface is bonded to the first tube outside wall surface by re-flow of the first and second tube outside wall surfaces;
further wherein the second tube outside wall surface is bonded to the first tube inside wall surface by re-flow of the first tube inside wall surface and second tube outside wall surface.
2. The catheter shaft of claim 1, wherein the outer layer of the second tube comprises a material that is bond-compatible with the first tube first material.
3. The catheter shaft of claim 1, wherein the outer layer of the second tube is also formed of the first tube first material.
4. The catheter shaft of claim 1, wherein the intermediate layer of the second tube comprises a material that is bond-compatible with both the inner layer lubricious material and the outer layer material.
5. The catheter shaft of claim 1, wherein the second tube comprises a proximal portion disposed proximally of the first tube orifice and a distal portion disposed distally of the first tube orifice, within the first tube inflation lumen.
6. The catheter shaft of claim 1, wherein the first tube first material comprises a polyether block amide.
7. The catheter shaft of claim 1, wherein the second tube outer layer comprises a polyether block amide.
8. The catheter shaft of claim 1, wherein the second tube inner layer comprises polyethylene.
9. The catheter shaft of claim 1, further comprising a stiffener disposed within the first tube.
10. The catheter shaft of claim 9, wherein the stiffener is disposed within the lumen of the first tube.
11. The catheter shaft of claim 9, wherein the stiffener is disposed within the first tube from a point proximal the proximal end of the second tube to a point distal of the bonding region.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An in-ear monitor for producing sound and coupleable to an external audio source, said in-ear monitor comprising:
an in-ear monitor enclosure;
a first driver disposed within said in-ear monitor enclosure;
a second driver disposed within said in-ear monitor enclosure; and
at least two concentric sound delivery tubes disposed within said in-ear monitor enclosure, wherein said at least two concentric sound delivery tubes are comprised of an inner sound delivery tube and an outer sound delivery tube, wherein a first driver acoustic output is acoustically coupled to said inner sound delivery tube and wherein said inner sound delivery tube acoustically couples said first driver to an in-ear monitor enclosure acoustic output surface, and wherein a second driver acoustic output is acoustically coupled to said outer sound delivery tube and wherein said outer sound delivery tube acoustically couples said second driver to said in-ear monitor enclosure acoustic output surface.
2. The in-ear monitor of claim 1, wherein said in-ear monitor is a custom fit in-ear monitor.
3. The in-ear monitor of claim 1, wherein said in-ear monitor enclosure is configured to accept a removable eartip.
4. The in-ear monitor of claim 1, wherein said first driver outputs a first range of frequencies and said second driver outputs a second range of frequencies.
5. The in-ear monitor of claim 1, further comprising:
a third driver disposed within said in-ear monitor enclosure; and
an independent sound delivery tube disposed within said in-ear monitor enclosure and discrete from said at least two concentric sound delivery tubes and acoustically coupled to a third driver acoustic output, wherein said independent sound delivery tube acoustically couples said third driver acoustic output to said in ear monitor enclosure acoustic output surface.
6. The in-ear monitor of claim 1, further comprising a third driver acoustically coupled to said inner sound delivery tube, wherein said inner sound delivery tube acoustically couples a third driver acoustic output to said in-ear monitor enclosure acoustic output surface.
7. The in-ear monitor of claim 1, further comprising a third driver acoustically coupled to said outer sound delivery tube, wherein said outer sound delivery tube acoustically couples a third driver acoustic output to said in-ear monitor enclosure acoustic output surface.
8. The in-ear monitor of claim 1, further comprising an acoustic filter interposed between said first driver acoustic output and said inner sound delivery tube.
9. The in-ear monitor of claim 1, further comprising an acoustic filter within said inner sound delivery tube.
10. The in-ear monitor of claim 1, further comprising an acoustic filter interposed between said second driver acoustic output and said outer sound delivery tube.
11. The in-ear monitor of claim 1, further comprising an acoustic filter within said outer sound delivery tube.
12. The in-ear monitor of claim 1, further comprising a plurality of support members, wherein said plurality of support members maintain spacing between said inner sound delivery tube and said outer sound delivery tube.
13. An in-ear monitor for producing sound and coupleable to an external audio source, said in-ear monitor comprising:
an in-ear monitor enclosure;
a first driver disposed within said in-ear monitor enclosure;
a second driver disposed within said in-ear monitor enclosure;
a third driver disposed within said in-ear monitor enclosure; and
at least two concentric sound delivery tubes disposed within said in-ear monitor enclosure, wherein said at least two concentric sound delivery tubes are comprised of an inner sound delivery tube, an outer sound delivery tube, and a middle sound delivery tube interposed between said inner and outer sound delivery tubes, wherein a first driver acoustic output is acoustically coupled to said inner sound delivery tube and wherein said inner sound delivery tube acoustically couples said first driver to an in-ear monitor enclosure acoustic output surface, wherein a second driver acoustic output is acoustically coupled to said middle sound delivery tube and wherein said middle sound delivery tube acoustically couples said second driver to said in-ear monitor enclosure acoustic output surface, and wherein a third driver acoustic output is acoustically coupled to said outer sound delivery tube and wherein said outer sound delivery tube acoustically couples said third driver to said in-ear monitor enclosure acoustic output surface.
14. The in-ear monitor of claim 13, wherein said first driver outputs a first range of frequencies, said second driver outputs a second range of frequencies, and said third driver outputs a third range of frequencies.
15. The in-ear monitor of claim 13, further comprising a fourth driver acoustically coupled to said inner sound delivery tube, wherein said inner sound delivery tube acoustically couples a fourth driver acoustic output to said in-ear monitor enclosure acoustic output surface.
16. The in-ear monitor of claim 13, further comprising a fourth driver acoustically coupled to said middle sound delivery tube, wherein said middle sound delivery tube acoustically couples a fourth driver acoustic output to said in-ear monitor enclosure acoustic output surface.
17. The in-ear monitor of claim 13, further comprising a fourth driver acoustically coupled to said outer sound delivery tube, wherein said outer sound delivery tube acoustically couples a fourth driver acoustic output to said in-ear monitor enclosure acoustic output surface.
18. The in-ear monitor of claim 13, further comprising an acoustic filter interposed between said first driver acoustic output and said inner sound delivery tube.
19. The in-ear monitor of claim 13, further comprising an acoustic filter within said inner sound delivery tube.
20. The in-ear monitor of claim 13, further comprising an acoustic filter interposed between said second driver acoustic output and said middle sound delivery tube.
21. The in-ear monitor of claim 13, further comprising an acoustic filter within said middle sound delivery tube.
22. The in-ear monitor of claim 13, further comprising an acoustic filter interposed between said third driver acoustic output and said outer sound delivery tube.
23. The in-ear monitor of claim 13, further comprising an acoustic filter within said outer sound delivery tube.
24. The in-ear monitor of claim 13, further comprising a first plurality of support members and a second plurality of support members, wherein said first plurality of support members maintain spacing between said inner sound delivery tube and said middle sound delivery tube, and wherein said second plurality of support members maintain spacing between said middle sound delivery tube and said outer sound delivery tube.