Secured strand end devices

Abstract

A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Claims

1. A woven, self-expanding stent device configured for insertion into an anatomical structure, the device comprising: a plurality of strands woven together to form a stent body, each of said plurality of strands having two strand end portions; a coupling structure coupled to a pair of strand end portions that are aligned end-to-end, the pair of strand end portions comprising strand end portions from a same strand or two different strands; wherein the pair of strand end portions includes nickel and titanium, and the coupling structure is not a strand of the device, and wherein the coupling structure is secured to a first strand end portion of the pair of strand end portions by a first weld that forms a first welded region, the coupling structure is secured to a second strand end portion of the pair of strand end portions by a second weld that forms a second welded region, and the first and second welded regions are not directly connected to each other along a longitudinal axis of the coupling structure by another welded region.

2. The device of claim 1, where the coupling structure has a passageway in which the pair of strand end portions are positioned.

3. The stent of claim 2, wherein the passageway has a diameter sized to receive one said strand.

4. The device of claim 1, wherein the device includes two or three device ends, where each device end is defined by strand bends.

5. The device of claim 1, where each said strand end portion is secured to only one other said strand end portion.

6. The device of claim 1, where the coupling structure is positioned beneath a strand of the device such that the strand is positioned radially outward from the coupling structure.

7. The device of claim 1, where the device includes two or three device ends and a longitudinal axis, the coupling structure is nearer to one of the device ends than any other device end, and the coupling structure is spaced apart from the nearest device end along a line substantially parallel to the longitudinal axis by at least one strand crossing.

8. The device of claim 1, where the coupling structure is laser welded to the first strand end portion of the two strand end portions.

9. The device of claim 8, where the coupling structure is laser welded to the second strand end portion of the two strand end portions.

10. The device of claim 1, further comprising: a second coupling structure coupled to another pair of strand end portions.

11. The device of claim 1, further comprising: one coupling structure coupled to each of five other pairs of strand end portions.

12. The device of claim 11, where the coupling structures are aligned with each other along an axis parallel to a longitudinal axis of the device.

13. The device of claim 1, further comprising: one coupling structure laser welded to each of five other pairs of strand end portions of the device, where each coupling structure includes nickel and titanium, and each strand end portion includes nickel and titanium.

14. The device of claim 13, where one of the five other pairs of strand end portions comprises strand end portions of two different strands of the device.

15. The device of claim 13, where one of the five other pairs of strand end portions comprises strand end portions of the same strand of the device.

16. The device of claim 13, where the coupling structures are aligned with each other along an axis parallel to a longitudinal axis of the device.

17. A self-expanding stent comprising: a multiple number of strands each including a first end and a second end, the strands being plain woven to form a stent having a proximal end and a distal end, wherein each of the strands is bent at both the proximal end of the stent and the distal end of the stent, and wherein the first end of each of the strands is aligned end-to-end with a second end of the same or a different strand to form a strand end pair; and a multiple number of tubular coupling structures, the number of tubular coupling structures equal to the number of strands, the tubular coupling structures being different than the strands, each of the tubular coupling structures secured to one of the strand end pairs, wherein each of the tubular coupling structures includes a passageway having a diameter sized to receive one said strand.

18. The stent of claim 17, wherein each of the tubular coupling structures is welded to each strand end of a strand end pair.

19. The stent of claim 17, wherein the tubular coupling structures are longitudinally spaced from each of the proximal and distal ends of the stent by at least two strand crossings.

20. The stent of claim 17, wherein the first end and the second end are spaced from each other in each said strand end pair.

21. The stent of claim 17, wherein the strands comprise Nitinol.

22. The stent of claim 21, wherein the tubular coupling structures comprise Nitinol.

23. The stent of claim 17, wherein the tubular coupling structure comprises a hollow tube.

24. The stent of claim 17, wherein the tubular coupling structure comprises an arcuate strip.

25. The stent of claim 17, wherein the tubular coupling structures are aligned with each other along an axis parallel to a longitudinal axis of the stent.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The following drawings illustrate by way of example and not limitation. Identical reference numerals do not necessarily indicate an identical structure. Rather, the same reference numeral may be used to indicate a similar feature or a feature with similar functionality. Not every feature of each embodiment is labeled in every figure in which that embodiment appears, in order to keep the figures clear.

(2) FIG. 1 shows an example of a portion of a device that is being configured for insertion into an anatomical structure, and at a stage of creation where free strand ends are positioned at one end of the device. There is a hook depicted in the top, central portion of the figure that is holding the device to an underlying surface. The hook is not part of the device.

(3) FIG. 2 shows an example of a portion of a device that is being configured for insertion into an anatomical structure, and at a stage of creation where half the free strand ends have been backbraided and the other half remain at one end of the device.

(4) FIG. 3 shows an example of a portion of a device after the weaving reflected in FIG. 1 and the backbraiding reflected in FIG. 2 and that includes coupling structures equal in number to the strands used to create it. Specifically, one coupling structure has been laser welded to each of six different pairs of substantially-aligned strand end portions of the device (for a total of six coupling structures).

(5) FIGS. 4A and 4B show examples of portions of other devices similar to the one shown in FIG. 3.

(6) FIG. 5 shows the configuration of the device ends (and the similarity of the strand bends that define them) of a device similar to the one shown in FIGS. 3 and 4.

(7) FIG. 6 shows an example of a portion of a device having coupling structures that are axially-aligned and that secure two strand end portions each in overlapping relationship.

(8) FIG. 7 shows an example of a portion of a device having coupling structures that are axially-aligned and that secure two substantially-aligned strand end portions each.

(9) FIG. 8 shows an example of a portion of a device similar to the one shown in FIG. 6, except that adjacent coupling structures are spaced apart from each other around the circumference of the device. Two of the coupling structures that are farthest from the viewer are labeled.

(10) FIG. 9 shows an example of a portion of a device similar to the one shown in FIG. 7, except that adjacent coupling structures are spaced apart from each other around the circumference of the device.

(11) FIG. 10A depicts one coupling structure secured to two strand end portions that are substantially aligned.

(12) FIG. 10B depicts one coupling structure secured to two strand end portions that overlap with each other.

(13) FIG. 10C depicts another embodiment of a coupling structure that is secured to two strand end portions that are substantially aligned.

(14) FIGS. 11A and 11B are schematic representations showing different example arrangements of coupling structures for a device such as a woven stent.

(15) FIG. 12 shows an example of a laser welding system that can be used to create the devices shown in FIGS. 2-9.

(16) FIG. 13 is a table providing example inner diameter, outer diameter and length dimensions of nitinol coupling structures that can be used for a given diameter nitinol wire size of a given size of six-strand woven stent, and further provides example settings for the LASAG welding system identified below (scfh stands for cubic feet per hour under standard conditions).

(17) FIG. 14A is a detail view showing certain dimensions of a welded region created by a weld that secures the depicted coupling structure to the depicted strand.

(18) FIG. 14B is a table containing example values for the dimensions depicted in FIG. 14A and other aspects of a stent created according to the present methods.

DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

(19) The terms comprise (and any form of comprise, such as comprises and comprising), have (and any form of have, such as has and having), contain (and any form of contain, such as contains and containing), and include (and any form of include, such as includes and including) are open-ended linking verbs. As a result, a device or method that comprises, has, contains, or includes one or more elements possesses those one or more elements, but is not limited to possessing only those one or more elements or steps. Likewise, an element of a device or a step of a method that comprises, has, contains, or includes one or more features possesses those one or more features, but is not limited to possessing only those one or more features. Furthermore, a structure that is configured in a certain way must be configured in at least that way, but also may be configured in a way or ways that are not specified.

(20) Any embodiment of any of the present methods and devices may consist of or consist essentially ofrather than comprise/include/contain/havethe described steps and/or features. Thus, and by way of example, while some embodiments of the present methods comprise welding a coupling structure to a first strand end portion of a device configured for insertion into an anatomical structure; and welding the coupling structure to a second strand end portion of the device; where the coupling structure is not a strand of the device, and the device includes one or more strands that include nickel and titanium, other embodiments consist essentially of or consist of welding a coupling structure to a first strand end portion of a device configured for insertion into an anatomical structure; and welding the coupling structure to a second strand end portion of the device; where the coupling structure is not a strand of the device, and the device includes one or more strands that include nickel and titanium.

(21) The terms a and an are defined as one or more than one unless this disclosure explicitly requires otherwise. The terms substantially and about are defined as at least close to (and include) a given value or state (preferably within 10% of, more preferably within 1% of, and most preferably within 0.1% of).

(22) The present methods may be used to secure two unsecured strand ends of a device configured for insertion into an anatomical structure. The initial process used to create the device may involve weavingsuch as the weaving techniques disclosed in U.S. Pat. Nos. 6,792,979 and 7,048,014, which are incorporated by referenceor any other process that results in at least two unsecured strand ends. If weaving is used, one suitable braiding machine that may be used is the Steeger 24 Carrier Horizontal Fine Wire Carrier Braider HS 140-24-IH manufactured by Steeger USA (Spartanburg, S.C.). The device may be created from one or more strands, and it may have a variety of configurations, such as stent (e.g., one with two ends or a multi-legged stent with more than two ends), an occluder, or a filter. The strand ends may be secured with a coupling structure that includes a passageway (such as a small tube) into which the strand ends can be inserted from opposite ends and that is welded (e.g., laser welded) to the strand end portions inserted into it. However, the coupling structure need not encompass the strand ends, as a small tube does. Instead, in other embodiments, the coupling structure could comprise a flat strip to which the strand ends are coupled, or a strip that is contoured, such as a portion of a small tube. Furthermore, though laser welding is discussed below as a preferred joining technique, other techniques may be used, including (but not limited to) electron beam welding, resistance welding, tungsten inert gas welding, metal inert gas welding, crimping, soldering, braising, and gluing.

(23) The coupling structure may be made from the same materials as the strand end portions to which it is coupled (e.g., a nickel-titanium coupling structure may be used to couple two nickel-titanium strand end portions together), or it may be made from a different material or materials (e.g., a stainless steel coupling structure may be used to couple two nickel-titanium strand end portions together).

(24) In embodiments in which is woven from nickel-titanium wires (nickel56.0 percent by weight of the total composition; titaniumbalance of the total composition), and the initial weaving is complete, the device (with the mandrel on which it was formed, if desired) can be heat treated according to the information in Table 1 below:

(25) TABLE-US-00001 TABLE 1 Stent Furnace Temperature Setting Heat Treatment Time Diameter (mm) ( C.) (minutes) 4.0 525 5 5.0 535 5 6.0 510 10 7.0 520 10 8.0 510 13 9.0 520 13 10.0 530 13
The device may have free strand ends positioned at some or all of the ends of the device when it is heat treated in this fashion. FIG. 1 shows an example of a device (device 100) that has one or more strands and is configured for insertion into an anatomical structure. Device 100, which is a stent, was created woven according to techniques disclosed in U.S. Pat. No. 7,018,401 from six strands (wires) that possess twelve strand halves 10. There are no free strand ends at the device end of device 100 that is not shown. Each half strand was secured (see, e.g., FIG. 3) to only one other half strand (which either belonged to the same or a different strand).

(26) After this heat treatment, the device can be immediately quenched in deionized water until cool. Next, the free strand ends of the device can be backbraided as desired and then baked according to the information in the same table and immediately quenched in deionized water until cool. FIG. 2 shows device 100 after half of the twelve loose strand ends have been backbraided.

(27) Next, one or more coupling structures (e.g., coupling structures that include nickel and titanium, such as 55.8 percent by weight of the total composition and titanium as the balance of the total composition) may be coupled to strand end portions of the woven device at any desired location along the length of the device. The device may be loaded onto a mandrel before the coupling structure(s) are positioned so that the internal diameter of the device is accurately set. Once the coupling structures have been positioned as desired, they can be secured to the strand end portions using any suitable technique, such as laser welding (which is described in more detail below). FIGS. 3-4B show examples of device 100 after coupling structures 20 have each been placed into contact with a pair of strand end portions and then welded to those strand end portions using laser welding as described below. FIG. 5, depicts the two device ends 102 and 104 of a version of device 100 created through the weaving, backbraiding, and coupling structure securing techniques that produced the devices shown in FIGS. 1-4B and 6-9, and shows that device ends 102 and 104 (device end 104 is the device end nearest the coupling structures that were used) are each defined by strand bends 40 (not all of which are labeled) that all have a substantially similar shape.

(28) As shown in FIGS. 3 and 4A, in some embodiments, the coupling structure nearest to a particular device end (e.g., the right-most coupling structure 20 shown in these figures) may be spaced apart from that device end by at least one strand crossing or more. In the embodiment shown in these figures, the right-most coupling structure 20 that is depicted is spaced apart from the depicted device end by at least three strand crossings (which are designated by a circle marked 30) taken along a line 40 that is substantially parallel to longitudinal axis 50 of device 10. This right-most coupling structure is spaced apart from the depicted device end by at least one device opening or more; in particular, by at least three device openings (device openings 45 have been outlined elsewhere in the figure to show that such openings (also characterizable as mesh openings) are defined by strand crossings and, in particular, four strand crossings except for the end-most rows of device openings, which are defined by only three strand crossings (thus, all the device openings of the version of device 100 shown in this figure are defined by at least three strand crossings)). Furthermore, this right-most coupling structure forms the fourth strand crossing 30 along line 40 from the depicted device end, and is positioned beneath a strand of device 10 that crosses over it. Each of the other coupling structures 20 is likewise positioned beneath a strand of device 10 that crosses over it. Prior to the securing, the strand ends to which a given coupling structure is secured may be cut (as necessary) so as to be substantially centered beneath the strand that will pass over that coupling structure; consequently, the coupling structure will be substantially centered at the crossing it, in part, defines, as is true of the coupling structures 20 shown in FIGS. 3-4B.

(29) The coupling structures that are used (for stents, the number of coupling structures will preferably equal the number of strands) may be axially aligned as are coupling structures 20 shown in FIGS. 3, 4A, and 4B and in FIGS. 6 and 7, or they may be spaced apart from each other axially and positioned around the circumference of the device, as are coupling structures 20 shown in FIGS. 8 and 9. The cutter used to cut the strand ends may be an Erem cutter Model 576TX (carbide cutter) or 503ETST (oblique head carbide cutter), which are available from Cooper Hand Tools (Cooper Industries, LLC). Given the small size of the device, a microscope may be employed during the strand end cutting and coupling structure placement.

(30) Examples of coupling structures for joining or coupling two strand ends, which can be of different strands or the same strand, and example arrangements of strand end portions secured by them are shown in FIGS. 10A-10C. FIG. 10A shows coupling structure 20 secured to strand end portions 12 and 14 in a butt joint or butt configuration; as a result of this arrangement, strand end portions 12 and 14 are substantially aligned with each other. Coupling structure 20 is secured to strand end portion 12 by a weld that forms a first welded region 22 and to strand end portion 14 by a weld that forms a second welded region 24. As shown, first welded region 22 is not connected to second welded region 24 by another welded region; the two welded regions are spaced apart from each and separate. Furthermore, the two strand end portions shown in this figure are not in direct contact with each other (there is a slight gap between their ends), though in other embodiments they are in direct contact with each other. The version of coupling structure 20 shown in FIG. 10A has a passageway that exists prior to the coupling structure being secured to either of the strand end portions, and the passageway is sized to receive one device strand.

(31) FIG. 10B shows coupling structure 20 secured to strand end portions 12 and 14 in lap joint or lap configuration; this configuration also may be characterized as overlapping. As a result, the two strand end portions are positioned beside each other rather than end-to-end. Though there is a small gap shown between them in this embodiment, in other embodiments there is direct side-to-side contact between them. The two welded regions 22 and 24 share the same characteristics as those in the FIG. 10A embodiment: they are not connected to each other by another welded region; they are spaced apart from each and separate. Although the welds that produced the two welded regions illustrated schematically in FIG. 10B are directed to only one strand end portion, each, they could both also be applied to both strand end portions, as were the welds that produced the welded regions shown in, for example, FIG. 6. The version of coupling structure 20 shown in FIG. 10B has a passageway that exists prior to the coupling structure being secured to either of the strand end portions, and the passageway is sized to receive two device strands.

(32) FIG. 10C shows another embodiment of one of the present coupling structures, coupling structure 20, which is secured to first strand end portion 12 and to second strand end portion 14 by two welds that form first and second welded regions 22 and 24. Coupling structure 20 does not have a passageway; instead, it is configured as a portion of a tubular structure (e.g., as a strip with an arc, though in other embodiments the strip is flat).

(33) FIG. 11A is a schematic representation showing that the coupling structures 20 for a given device can be axially aligned. FIG. 11B shows they can be helically arranged, which is one way of offsetting them axially and circumferentially (such as at 60 degree intervals) from each other.

(34) For woven stents made from nitinol wires (such as those that include 56.0 percent nickel by weight of the total composition and titanium as the balance of the total composition), coupling structures made from the same type of nitinol (such as 55.8 percent nickel by weight of the total composition and titanium as the balance of the total composition) can be used to couple the ends of different strands using laser welding, such as pulsed laser welding. An example of a suitable laser welding system is shown in FIG. 12, and includes a LASAG pulsed Nd:YAG (Neodymium:Yttrium Aluminum Garnet) EasyWelder laser system from the SLS 200 series (Lasag, Switzerland).

(35) For a stent made from six nitinol wires (nickel56.0 percent by weight of the total composition; titaniumbalance of the total composition), six nitinol coupling structures (nickel55.8 percent by weight of the total composition; titaniumbalance of the total composition) may be used. The table in FIG. 13 provides example inner diameter, outer diameter and length dimensions of nitinol coupling structures that can be used for a given diameter nitinol wire size of a given size of six-strand woven stent, and further provides example settings for the LASAG welding system identified above (scfh stands for cubic feet per hour under standard conditions).

(36) The following is a brief description of how coupling structures are secured to the pairs of wire end portions of a heat-treated (according to the technique described above), six-wire woven nitinol stent through a process that is at least partially automated (and in other embodiments fully automated) using the LASAG welding system described above:

(37) the stent has been partially braided back (e.g., by hand), meaning that six of the 12 wire ends are braided back into the stent;

(38) starting at any suitable wire crossing (e.g., the fourth or fifth wire crossing from the end that has been braided back), the wire ends are cut as described above such that the ends of the wires come into contact under the crossing wire;

(39) the coupling structures are loaded onto the wire ends and centered about the crossing wire while on a mandrel so that the internal diameter of the stent is accurately set;

(40) the coupling region of the stent is secured to the mandrel with a spring loaded clip to prevent relative motion between the stent and mandrel, to accurately set the internal diameter of the stent, and to maintain the proper placement of the wire end portions within the coupling structures;

(41) the mandrel mounted and secured stent is then placed in the laser welding system and the first coupling structure is aligned with the horizontal crosshair on the view screen of the system;

(42) the welding program for the size of stent to be welded (examples provided below) is invoked; and

(43) the operator is prompted to align the crosshairs with the upper-left corner of the coupling. Once aligned, the operator presses the start button and the left weld bead is created. The system then moves and prompts the operator to align the crosshairs to the upper-right corner. Once aligned, the operator presses the start button and the right weld bead is created. The system then moves to the upper-left corner of the second coupling and the process is repeated. This continues until all 12 welds are completed.

(44) Dimensions for welded region 24 of a given coupling structure 20 of one of the present devices (specifically, a woven stent such as those shown in FIGS. 1-4B) are depicted in FIG. 14A and example values for those dimensions are set forth in FIG. 14B. Table 2 below provides example values for the dimensions of a tubular coupling structure corresponding to the Coupling Structure Code set forth in FIG. 14B:

(45) TABLE-US-00002 TABLE 2 Coupling Coupling Structure Structure Coupling Structure Coupling Structure Code Inner Dia. (in.) Outer Dia. (in.) Length (in.) -01 0.0070 0.0100 0.070 -02 0.0070 0.0100 0.080 -03 0.0075 0.0105 0.100 -04 0.0085 0.0120 0.120 -05 0.0085 0.0120 0.150
Unless otherwise set forth, the tolerances for the values in FIG. 14B are as follows: X.=1; .X=0.5; .XX=0.25; .XXX=0.125. Unless otherwise set forth, the tolerances for the values in Table 2 are as follows: .X=0.030; .XX=0.010; .XXX=0.005.

(46) Thus, taking the first row of FIG. 14B as an example, a given stent with an internal diameter of 4.0 mm and a length of 40 mm made from nitinol wires (such as those described above) having 0.006 inch diameters could be made with tubular coupling structures (code 01) that each have an internal diameter of 0.0070 inches, an outer diameter of 0.0100 inches, and a length of 0.070 inches, with dimensions A, B, and C of the welded region produced by a laser weld that secures that coupling structure to one of the specified wires having the dimensions of A=0.010 inches, B=0.005 inches, and C=0.010 inches.

(47) The following routines written in industry-standard NC (numerical code) can be used to program the LASAG welding system identified above for use in creating butt-coupled joints using the coupling structures described above for the various sizes of nitinol stents (formed from using the nickel-titanium mixture described above) recited before each routine:

(48) TABLE-US-00003 4 mm ID stent ;4mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.25 ;PULSE LENGTH 0.25ms C108 Q200 ;Peak Power 200 W C111 Q120 ;A-Scale 120 M51 ;MONITOR LASER OK ;Move Laser to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.656 ; Adjust Focus ; Weld six couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.040 Y.037 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.040 Y.037 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.040 Y.037 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.040 Y.037 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.040 Y.037 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ;Go Back to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; /*------ End of Program ------- */ ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.008 Y.004 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.058 Y.0045 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.008 Y.004 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(49) TABLE-US-00004 5 mm ID stent ;5mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.25 ;PULSE LENGTH 0.25ms C108 Q200 ;Peak Power 200 W C111 Q120 ; A-Scale 120 M51 ;MONITOR LASER OK ; Move to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.656 ; Adjust Focus ; Weld six couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.040 Y.041 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.040 Y.041 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.040 Y.041 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.040 Y.041 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.040 Y.041 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ;Go Back to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.010 Y.004 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.055 Y.0045 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.010 Y.004 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(50) TABLE-US-00005 6 mm ID stent ;6mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.3 ;PULSE LENGTH 0.3ms C108 Q300 ;Peak Power 200 W C111 Q100 ;A-Scale 100 M51 ;MONITOR LASER OK ; Move to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.6716 ; Adjust Focus ; Weld six couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.060 Y.045 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.060 Y.045 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.060 Y.045 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.060 Y.045 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.060 Y.045 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ; Go Back to Common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.010 Y.005 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.075 Y.005 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.010 Y.005 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(51) TABLE-US-00006 7 mm ID stent ;7mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.3 ;PULSE LENGTH 0.3ms C108 Q300 ;Peak Power 200 W C111 Q100 ;A-Scale 100 M51 ;MONITOR LASER OK ; Move to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.6716 ; Adjust Focus ; Weld six couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.060 Y.049 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.060 Y.049 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.060 Y.049 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.060 Y.049 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.060 Y.049 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ; Go Back to Common Work Place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.010 Y.005 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.075 Y.005 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.010 Y.005 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(52) TABLE-US-00007 8 mm ID stent ;8mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.3 ;PULSE LENGTH 0.3ms C108 Q300 ;Peak Power 200 W C111 Q100 ; A-Scale 100 M51 ;MONITOR LASER OK ; Move to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.6544 ; Adjust Focus ; Weld six Couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.067 Y.053; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.067 Y.053; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.067 Y.053; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.067 Y.053; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.067 Y.053; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ; Go Back to Common Work Place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.010 Y.006 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.095 Y.006 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.010 Y.006 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(53) TABLE-US-00008 9 mm ID stent ;9mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.3 ;PULSE LENGTH 0.3ms C108 Q300 ;Peak Power 200 W C111 Q100 ; A-Scale 100 M51 ;MONITOR LASER OK ; Move to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.6716 ; Adjust Focus ; Weld six Couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.067 Y.057 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.067 Y.057 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.067 Y.057 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.067 Y.057 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.067 Y.057 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ; Go Back to Common Work Place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.010 Y.006 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.095 Y.006 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.010 Y.006 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(54) TABLE-US-00009 10 mm ID stent ;10mm Stent Welding Program M61 ;Laser Remote Control ; Welding Parameters C101 Q10 ;FREQUENCY 10 HZ C102 Q0.3 ;PULSE LENGTH 0.3ms C108 Q300 ;Peak Power 200 W C111 Q100 ; A-Scale 100 M51 ;MONITOR LASER OK ; Move to common work place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part Z2.6716 ; Adjust Focus ; Weld six Couplings M26 H152 ; Reset Door M98 P2 ; Goto Subroutine 1 - 1st Coupling F4 ; Fast Feed for inter move X.067 Y.061 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 2nd Coupling F4 ; Fast Feed for inter move X.067 Y.061 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 3rd Coupling F4 ; Fast Feed for inter move X.067 Y.061 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 4th Coupling F4 ; Fast Feed for inter move X.067 Y.061 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 5th Coupling F4 ; Fast Feed for inter move X.067 Y.061 ; Move back to relative 0,0 M98 P2 ; Goto Subroutine 1 - 6th Coupling ; Go Back to Common Work Place G90 ; Absolute Coordinate F50 ; Feed Rate X3.93 Y4.6 ; Locate fixture and part M25 H152 ; Open Door M02 ; End of NC ; Coupling Weld Subroutine O2 ; Welding Routine F1 ; Feed Rate G05Q1 ; Jog with Pause / Move to Upper Left Corner G91 ; Incremental Coordinates M8 ; Gas On G4F.5 ; Dwell for .5 seconds X0.010 Y.006 ; Offset from corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld left bead = .015: M70 ; Stop laser processing X0.095 Y.006 ; Index to Right Upper Corner G05Q1 ; Jog with Pause / Adjust to Upper Right Corner X0.010 Y.006 ; Offset from right corner of coupling M71 ; Laser Processing with Sync. feed X0.015 ; Weld bead = .015: M70 ; Stop laser processing M9 ; Gas off M99 ; Return

(55) It should be understood that the present methods and the devices they produce are not intended to be limited to the particular forms disclosed. Rather, they are to cover all modifications, equivalents, and alternatives falling within the scope of the claims. For example, while the devices illustrated in the figures have been woven from multiple strands, in other embodiments, the present methods could be applied to devices woven or otherwise created from only a single strand of material (such as a nitinol wire). Further, while stents have been shown in the figures, other devices suited for placement in an anatomical structure, such as filters and occluders, could have their free strand ends joined according to the present methods.

(56) The claims are not to be interpreted as including means-plus- or step-plus-function limitations, unless such a limitation is explicitly recited in a given claim using the phrase(s) means for or step for, respectively.