1. A musical instrument device comprising:
a user interface; and
a vibrating cavity wherein inputs from said user interface case air to vibrate in said vibrating cavity and wherein said vibrating cavity comprises conductively doped resin-based material comprising micron conductive materials in a resin-based material.
2. The device according to claim 1 wherein the percent by weight of said micron conductive materials is between about 20% and about 50% of the total weight of said conductively doped resin-based material.
3. The device according to claim 1 wherein said micron conductive materials comprise micron conductive fiber.
4. The device according to claim 2 wherein said micron conductive materials further comprise conductive powder.
5. The device according to claim 1 wherein said micron conductive materials are metal.
6. The device according to claim 1 wherein said micron conductive materials are non-conductive materials with metal plating.
7. The device according to claim 1 said user interface comprises strings comprising said conductively doped resin-based material.
8. The device according to claim 1 wherein said user interface comprises keys comprising said conductively doped resin-based material.
9. The device according to claim 1 further comprising an electrical pickup coupled to said vibrating cavity wherein said electrical pickup comprises said conductively doped resin-based material.
10. The device according to claim 9 further comprising electrical switches or connectors coupled to said electrical pickup wherein said electrical switches or connectors comprise said conductively doped resin-based material.
11. A musical instrument device comprising:
a user interface; and
a vibrating cavity wherein inputs from said user interface case air to vibrate in said vibrating cavity and wherein said vibrating cavity comprises conductively doped resin-based material comprising micron conductive fiber in a resin-based material and wherein the percent by weight of said micron conductive fiber is between about 20% and about 50% of the total weight of said conductively doped resin-based material.
12. The device according to claim 11 wherein said micron conductive fiber is nickel plated carbon micron fiber, stainless steel micron fiber, copper micron fiber, silver micron fiber or combinations thereof.
13. The device according to claim 11 further comprising micron conductive powder.
14. The device according to claim 13 wherein said micron conductive powder is nickel, copper, or silver.
15. The device according to claim 11 wherein said conductively doped resin-based material further comprises a ferromagnetic material.
16. The device according to claim 11 further comprising a metal layer overlying said conductively doped resin-based material.
17. The device according to claim 11 said user interface comprises strings comprising said conductively doped resin-based material.
18. The device according to claim 11 wherein said user interface comprises keys comprising said conductively doped resin-based material.
19. The device according to claim 1 further comprising an electrical pickup coupled to said vibrating cavity wherein said electrical pickup comprises said conductively doped resin-based material.
20. The device according to claim 19 further comprising electrical switches or connectors coupled to said electrical pickup wherein said electrical switches or connectors comprise said conductively doped resin-based material.
21. A method to form a musical instrument device, said method comprising:
providing a conductively doped, resin-based material comprising micron conductive materials in a resin-based host;
forming a using interface; and
molding said conductively doped, resin-based material into a vibrating cavity wherein inputs from said user interface case air to vibrate in said vibrating cavity.
22. The method according to claim 21 wherein the percent by weight of said micron conductive materials is between about 20% and about 50% of the total weight of said conductively doped resin-based material.
23. The method according to claim 21 wherein said micron conductive materials comprise micron conductive fiber.
24. The method according to claim 23 wherein said micron conductive materials further comprise conductive powder.
25. The method according to claim 21 wherein said micron conductive materials are metal.
26. The method according to claim 1 wherein said micron conductive materials are non-conductive materials with metal plating.
27. The method according to claim 21 wherein said step of molding comprises:
injecting said conductively doped, resin-based material into a mold;
curing said conductively doped, resin-based material; and
removing said vibrating cavity from said mold.
28. The method according to claim 21 wherein said step of molding comprises:
loading said conductively doped, resin-based material into a chamber;
extruding said conductively doped, resin-based material out of said chamber through a shaping outlet; and
curing said conductively doped, resin-based material to form said vibrating cavity.
29. The method according to claim 21 further comprising plating a metal layer overlying said conductively doped resin-based material.
30. The method according to claim 21 said user interface comprises said conductively doped resin-based material.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A method of providing synchronous cardiac biventricular stimulation by stimulating a left ventricle with a left ventricular lead that includes a left ventricular electrode, and by stimulating a right ventricle with a right ventricular lead that includes a right ventricular electrode, the method comprising the steps of:
generating biventricular stimulation pulses;
selectively delivering the biventricular stimulation pulses on demand with a cross-chamber configuration between the left ventricular electrode and the right ventricular electrode, for synchronously stimulating the left and right ventricles; and
verifying capture of the left ventricle and the right ventricles.
2. The method according to claim 1, wherein the right ventricular electrode and the left ventricular electrode are tip electrodes; and
wherein the delivering step includes the step of stimulating with the tip electrodes.
3. The method according to claim 1, further including programmably selecting polarities for the right ventricular electrode and the left ventricular electrode to control an activation stimulation sequence.
4. The method according to claim 3, wherein the delivering step includes delivering a biphasic pulse.
5. The method according to claim 3, wherein the delivering step includes delivering a monophasic pulse.
6. The method according to claim 3, wherein the delivering step includes delivering a positive pulse to the right ventricular electrode and delivering a negative pulse to the left ventricular electrode.
7. The method according to claim 3, wherein the step of verifying capture includes sensing in a bipolar configuration between a first right ventricular electrode and a second right ventricular electrode.
8. The method according to claim 3, wherein the step of verifying capture includes sensing in a cross-chamber configuration between a sensing electrode pair which is different from the right and left ventricular electrodes.
9. The method according to claim 8, wherein the right ventricular electrode and the left ventricular electrode are tip electrodes;
wherein the sensing electrode pair includes a right ventricular ring electrode and a left ventricular ring electrode; and
wherein sensing in the cross-chamber configuration includes with the ring electrodes.
10. The method according to claim 8, further including the step of programmably selecting polarities for the sensing electrode pair to control a directional pathway of sensing within the right and left ventricles.
11. The method according to claim 9, wherein the step of verifying capture includes taking cardiac impedance measurements.
12. The method according to claim 3, wherein the step of verifying capture includes taking cross-ventricular impedance measurements in a cross-chamber arrangement by applying an excitation current pulse between a first right ventricular electrode and a first left ventricular electrode, and sensing a resulting voltage differential between a second right ventricular electrode and a second left ventricular electrode.
13. The method according to claim 3, wherein the right ventricular lead is a bipolar lead that includes first and second right ventricular electrodes;
wherein the left ventricular lead is a bipolar lead that includes first and second left ventricular electrodes; and
wherein the step of verifying capture in the right ventricle includes delivering a stimulation pulse between the first and second right ventricular electrodes and sensing a resulting voltage differential between the first and second left ventricular electrodes.
14. The method according to claim 3, wherein the right ventricular lead is a bipolar lead that includes first and second right ventricular electrodes;
wherein the left ventricular lead is a bipolar lead that includes first and second left ventricular electrodes; and
wherein the step of verifying capture in the left ventricle includes delivering a stimulation pulse between the first and second left ventricular electrodes and sensing a resulting voltage differential between the first and second right ventricular electrodes.
15. The method according to claim 3, further including the step of positioning a left atrial lead that includes a left atrial electrode; and
the step of sensing a myoelectric signal between the left atrial electrode and the right ventricular electrode.
16. The method according to claim 15, wherein the step of verifying capture includes confirming loss of capture by detecting a sequence of time delay and an intrinsic response immediately following a stimulation pulse.
17. The method according to claim 15, wherein the step of verifying capture includes confirming synchronous capture of the left and right ventricles by detecting an evoked response immediately following a stimulation pulse.
18. A cardiac simulation system for providing synchronous biventricular stimulation, comprising:
a left ventricular lead including a left ventricular electrode that delivers stimulation pulses to a left ventricle;
a right ventricular lead including a right ventricular electrode that delivers stimulation pulses to a right ventricle;
a pulse generator connected to the left ventricular lead and the right ventricular lead, and adapted to perform biventricular stimulation with a cross-chamber configuration between the left ventricular electrode and the right ventricular electrode, to synchronously capture the left and right ventricles; and
an automatic capture detector coupled to the pulse generator to verify capture of the left ventricle and the right ventricles.
19. The stimulation device according to claim 18, wherein the automatic capture detector programmably selects polarities for the right ventricular electrode and the left ventricular electrode to control an activation stimulation sequence.
20. The stimulation device according to claim 19, wherein the automatic capture detector performs automatic capture verification of the biventricular stimulation with a cross-chamber sensing configuration.
21. The stimulation device according to claim 20, further including an impedance measuring circuit that provides impedance measurements to the automatic capture detector for performing capture verification.
22. The stimulation device according to claim 18, wherein the right ventricular electrode and the left ventricular electrode are tip electrodes; and
further including a sensing electrode pair comprised of a right ventricular ring electrode and a left ventricular ring electrode.
23. The stimulation device according to claim 18, wherein the right ventricular lead is a bipolar lead that includes first and second right ventricular electrodes;
wherein the left ventricular lead is a bipolar lead that includes first and second left ventricular electrodes; and
wherein the automatic capture detector verifies capture in the right ventricle by delivering a stimulation pulse between the first and second right ventricular electrodes and by sensing a resulting voltage differential between the first and second left ventricular electrodes.
24. The stimulation device according to claim 18, wherein the right ventricular lead is a bipolar lead that includes first and second right ventricular electrodes;
wherein the left ventricular lead is a bipolar lead that includes first and second left ventricular electrodes; and
wherein the automatic capture detector verifies capture in the left ventricle by delivering a stimulation pulse between the first and second left ventricular electrodes and by sensing a resulting voltage differential between the first and second right ventricular electrodes.
25. The stimulation device according to claim 18, wherein the automatic capture detector confirms loss of capture by detecting a sequence of time delay and an intrinsic response immediately following a stimulation pulse.
26. The stimulation device according to claim 18, wherein the automatic capture detector confirms synchronous capture of the left and right ventricles by detecting an evoked response immediately following a stimulation pulse.
27. A cardiac simulation system for providing synchronous biventricular stimulation, comprising:
means for generating stimulation pulses;
means for selectively delivering the stimulation pulses to a left ventricle;
means for selectively delivering the stimulation pulses to a right ventricle;
means for synchronously capturing the left and right ventricles by performing biventricular stimulation with a cross-chamber configuration between the left ventricular electrode and the right ventricular electrode; and
means for verifying capture of the left ventricle and the right ventricles.
28. The stimulation device according to claim 27, wherein the means for verifying capture performs automatic capture verification of the biventricular stimulation with a cross-chamber sensing configuration.
29. The stimulation device according to claim 27, wherein the means for verifying capture confirms loss of capture by detecting a sequence of time delay and an intrinsic response immediately following a stimulation pulse.
30. The stimulation device according to claim 27, wherein the means for verifying capture confirms synchronous capture of the left and right ventricles by detecting an evoked response immediately following a stimulation pulse.