Slotted medical devices with fillers
View Patent ↗A medical device includes: an elongated member having a proximal end, a distal end, and a body extending between the proximal end and the distal end; wherein the elongated member includes a tubular section having a plurality of slots extending into a wall of the tubular section, the plurality of slots having a first slot; and wherein the elongated member further includes fillers respectively located in the slots, the fillers having a first filler, wherein the first filler has a spongy material located in the first slot.
1. A medical device, comprising:
an elongated member having a proximal end, a distal end, and a body extending between the proximal end and the distal end;
wherein the elongated member comprises a tubular section having a first plurality of openings and a second plurality of openings extending through an entire thickness of a wall of the tubular section, the first plurality of openings comprising a first opening;
wherein the elongated member further comprises fillers respectively located in the openings of the first and second plurality of openings, the fillers comprising a first filler;
wherein the first filler comprises a porous material with an elastic modulus that is less than 10% of an elastic modulus of the material of the tubular section;
wherein the second plurality of openings are proximal to the first plurality of openings, and wherein one of the openings in the second plurality of openings has a width that is less than a width of one of the first openings in the first plurality of openings; and
wherein the first filler is compressible to reach a compressed volume that is less than 50% of an uncompressed volume of the first filler, and/or wherein the first filler is stretchable to reach a stretched volume that is more than 120% of an unstretched volume of the first filler.
2. The medical device of claim 1 , wherein the first filler comprises a closed cell material.
3. The medical device of claim 1 , wherein the medical device is a guidewire, a delivery wire, a catheter or an implant.
4. The medical device of claim 1 , wherein the first opening has a width that is less than 0.02 inch.
5. The medical device of claim 1 , further comprising an inner layer coupled to an inner surface of the tubular section, wherein the first filler is integral with the inner layer.
6. The medical device of claim 1 , further comprising an outer layer coupled to an outer surface of the tubular section.
7. The medical device of claim 6 , wherein the first filler is integral with the outer layer.
8. The medical device of claim 1 , wherein the first filler comprises a spongy material located in the first opening.
9. The medical device of claim 1 , further comprising an outer layer coupled to an outer surface of the tubular section, and an inner layer coupled to an inner surface of the tubular section, wherein the first filler is integral with the inner layer and/or with the outer layer.
10. The medical device of claim 1 , wherein the first filler is compressible and/or stretchable to reach a strain that is at least 0.5.
11. The medical device of claim 1 , wherein the first plurality of openings are in a non-symmetric pattern.
12. The medical device of claim 1 , wherein the first plurality of openings extend at least partly circumferentially in a slanted direction with respect to a longitudinal axis of the tubular section.
13. The medical device of claim 1 , wherein the first plurality of openings comprises first slots that are non-perpendicular to a longitudinal axis of the tubular section, and wherein the second plurality of openings comprises second slots that are non-perpendicular to the longitudinal axis of the tubular section and that are proximal to the first slots.
14. The medical device of claim 1 , wherein the second plurality of openings comprises at least two elongated openings.
15. The medical device of claim 1 , wherein the first filler has an outer boundary defining the compressed volume of the first filler when the first filler is compressed, and defining the stretched volume of the first filler when the first filler is stretched.
16. A medical device, comprising:
an elongated member having a proximal end, a distal end, and a body extending between the proximal end and the distal end;
wherein the elongated member comprises a tubular section having a first plurality of elongated openings and a second plurality of elongated openings extending through an entire thickness of a wall of the tubular section;
wherein the elongated member further comprises fillers respectively located in the elongated openings of the first plurality of elongated openings and in the elongated openings of the second plurality of elongated openings, and wherein the fillers respectively comprise porous materials;
wherein the first plurality of elongated openings extend at least partly circumferentially in a slanted direction with respect to a longitudinal axis of the tubular section; and
wherein at least one of the fillers is compressible to reach a compressed volume that is less than 50% of an uncompressed volume of the at least one of the fillers, and/or wherein the at least one of the fillers is stretchable to reach a stretched volume that is more than 120% of an unstretched volume of the at least one of the fillers.
17. The medical device of claim 16 , wherein at least one of the fillers comprises a spongy material.
18. The medical device of claim 16 , wherein at least one of the fillers comprises a closed cell material.
19. The medical device of claim 16 , wherein one of the fillers is compressible and/or stretchable to reach a strain that is at least 0.5.
20. The medical device of claim 16 , wherein the medical device is a guidewire, a delivery wire, an implant, or a catheter.
21. The medical device of claim 16 , further comprising an inner layer coupled to an inner surface of the tubular section, wherein at least one of the fillers is integral with the inner layer.
22. The medical device of claim 16 , further comprising an outer layer coupled to an outer surface of the tubular section, wherein at least one of the fillers is integral with the outer surface.
23. The medical device of claim 16 , wherein the second plurality of elongated openings are proximal to the first plurality of elongated openings, and wherein each of the elongated openings in the second plurality of elongated openings has a width that is less than a width of each of the elongated openings in the first plurality of elongated openings.
24. The medical device of claim 16 , further comprising an outer layer coupled to an outer surface of the tubular section, and an inner layer coupled to an inner surface of the tubular section, wherein at least some of the fillers are integral with the inner layer and/or with the outer layer.
25. The medical device of claim 16 , wherein at least one of the fillers has an elastic modulus that is less than 10% of an elastic modulus of a material of the tubular section.
26. The medical device of claim 16 , wherein the first filler has an outer boundary defining the compressed volume of the first filler when the first filler is compressed, and defining the stretched volume of the first filler when the first filler is stretched.