Medical implant apparatus with wireless energy transmission

• US 9,814,559 B1
• Filed: 08/01/2000
• Issued: 11/14/2017
• Est. Priority Date: 08/12/1999
• Status: Active Grant

• Current Assignee: Prosthesica AG
• Original Assignee: Prosthesica AG
• Inventors: Forsell, Peter
• Primary Examiner(s): Matthews, Christine H
• Application Number:
  US11/988,450
• Time in Patent Office: 6,314 Days
• Field of Search: 128899, 600517, 600585, 607 33
• CPC Class Codes: A61F 2/02 Prostheses implantable into the body closure means for urethra or rectum or for artificial body openings therefor A61F2/0004
• CPC Class Codes: A61N 1/3787 from an external energy source

Abstract

A medical implant apparatus includes or uses an energy transmission device for wireless transmission of energy of a first form from outside a patient'"'"'s body. An implanted medical device is operable in response to energy of a second form different than the energy of the first form. An implanted energy transforming device transforms energy of the first form wirelessly transmitted by the energy transmission device into energy of the second form for use in the control and operation of the medical device.

Claims

1. A medical implant apparatus for a patient, comprising:

an energy transmission means for wireless transmission of energy of a first form from outside the patient'"'"'s body;

an implantable medical device operable in response to energy of a second form; and

an implantable energy transforming means for transforming the energy of the first form wirelessly transmitted by the energy transmission means into energy of the second form, which is used for operating the medical device,

wherein the energy transforming means comprises at least one element having a positive region and a negative region and adapted to create an energy field between said positive and negative region when exposed to wireless energy of the first form transmitted by the energy transmission means, so that the energy field produces energy of the second form, wherein the element comprises an electrical semi-conductor junction element capable of inducing an electric field between the positive and negative regions when exposed to energy of the first form transmitted by the energy transmission means,

wherein the electrical semi-conductor junction element comprises a flat sheet, and wherein the electrical semi-conductor junction element is adapted to generate an electrical current whereby the energy of the second form comprises electric energy, wherein the medical device is electrically operated, and the positive and negative regions of the electrical semi-conductor junction element supply electric energy for the operation of the medical device, the medical implant further comprising an implantable motor, pump or motor and pump operably connected to the medical device, wherein the element is adapted to power the implantable motor, pump or motor and pump with energy of the second form, by at least one of;

directly operating, with the energy of the second form as the energy transmission means transmits energy of the first form, and

storing energy in a comprised implantable energy storage device being an electric accumulator, the electric accumulator comprising at least one capacitor or battery for storing energy of the second form for indirect supply of energy.

2. The apparatus according to claim 1, wherein energy of the second form used for operating the medical device is wirelessly transmitted by the energy transforming means.

3. An apparatus according to claim 1, further comprising electric conductors connected to the positive and negative regions of the electrical junction element, whereby the electrical junction element is capable of supplying an electric current via the electric conductors.

4. An apparatus according to claim 3, wherein the electrical junction element is capable of supplying a direct current or pulsating direct current via the conductors.

5. An apparatus according to claim 3, wherein the electrical junction element is capable of supplying an alternating current or a combination of a direct and alternating current via the conductors.

6. An apparatus according to claim 1, wherein the electrical junction element is capable of supplying a frequency or amplitude modulated signal.

7. An apparatus according to claim 1, wherein the electrical junction element is capable of supplying an analog or digital signal.

8. An apparatus according to claim 1, further comprising an implantable pulse generator for generating electrical pulses from energy of the second form produced by the energy field.

9. An apparatus according to claim 1, wherein the electrical junction element generates an output current exceeding 1 μ

A when exposed to energy of the first form transmitted by the energy transmission means.

10. An apparatus according to claim 1, wherein the electrical junction element forms a flat sheet, and has a volume of less than 2000 cm³.

11. An apparatus according to claim 1, wherein the energy transforming means comprises at least one semiconductor circuitry having the positive region and the negative region, and adapted to create an, energy field between the positive and negative regions when exposed to energy of the first form transmitted by the energy transmission means, so that the energy field produces energy of the second form.

12. An apparatus according to claim 1, wherein the energy transforming means comprises at least one transistor circuitry having the positive region and the negative region, and adapted to create an energy field between the positive and negative regions when exposed to energy of the first form transmitted by the energy transmission means, so that the energy field produces energy of the second form.

13. An apparatus according to claim 1, wherein the energy transforming means comprises at least one microchip having the positive region and the negative region, and adapted to create an energy field between the positive and negative regions when exposed to energy of the first form transmitted by the energy transmission means, so that the energy field produces energy of the second form.

14. An apparatus according to claim 1, wherein the medical device is electrically operated, the energy transforming means is functionally different from the energy transmission means and is adapted to transform energy of the first form into electric energy, and the implantable energy storage device comprises an electric energy storage means for storing the electric energy from the energy transforming means and for supplying electric energy for operation of the medical device.

15. An apparatus according to claim 14, wherein the energy transforming means is capable of inducing an electric field between the positive and negative regions when exposed to energy of the first form transmitted by the energy transmission means, the positive and negative regions of the electrical junction element being electrically connected to the electric energy means.

16. An apparatus according to claim 1, further comprising an implantable switch operable by energy of the second form supplied by the implantable energy storage device to switch from an off mode, in which the implantable energy storage device is not in use, to an on mode, in which the implantable energy storage device supplies energy for the operation of the medical device.

17. An apparatus according to claim 1, further comprising a remote control for controlling the supply of energy from the implantable energy storage device, and an implantable switch operable by energy of the second form supplied by the implantable energy storage device to switch from an off mode, in which the remote control is prevented from controlling the implantable energy storage device and the implantable energy storage device is not in use, to a standby mode, in which the remote control is permitted to control the implantable energy storage device to supply energy for the operation of the medical device.

18. An apparatus according to claim 1, further comprising an implantable switch operable by energy of the second form supplied by the energy transforming means to switch from an off mode, in which the implantable energy storage device is not in use, to an on mode, in which the implantable energy storage device supplies energy for the operation of the medical device.

19. An apparatus according to claim 1, further comprising a remote control for controlling supply of energy from the implantable energy storage device, and an implantable switch operable by energy of the second form supplied by the energy transforming means to switch from an off mode, in which the remote control is prevented from controlling the implantable energy storage device and the implantable energy storage device is not in use, to a standby mode, in which the remote control is permitted to control the implantable energy storage device to supply energy for the operation of the medical device.

20. An apparatus according to claim 1, wherein the energy transmission means transmits energy of the first form by at least one wireless signal.

21. An apparatus according to claim 20, wherein the at least one wireless signal comprises a wave signal.

22. An apparatus according to claim 21, wherein the at least one wireless signal contains radiant energy.

23. An apparatus according to claim 21, wherein the wave signal comprises electromagnetic waves including one of infrared light, visible light, ultra violet light, laser light, micro waves, radio waves, x-ray radiation, and gamma radiation.

24. An apparatus according to claim 21, wherein the wave signal comprises sound waves.

25. An apparatus according to claim 20, wherein the at least one wireless signal comprises a digital or analog signal.

26. An apparatus according to claim 1, wherein energy of the first form transmitted by the energy transmission means comprises an electric field.

27. An apparatus according to claim 26, wherein the electric field is transmitted in pulses or digital pulses by the energy transmission means.

28. An apparatus according to claim 1, wherein energy of the first form transmitted by the energy transmission means comprises a magnetic field.

29. An apparatus according to claim 28, wherein the magnetic field is transmitted in pulses or digital pulses by the energy transmission means.

30. An apparatus according to claim 1, further comprising a wireless remote control transmitting at least one wireless control signal for controlling the medical device.

31. An apparatus according to claim 30, wherein the remote control is capable of obtaining information on a condition of the implantable medical device and to control the medical device in response to the information.

32. An apparatus according to claim 30, wherein the remote control comprises an implanted control unit for controlling the medical device.

33. An apparatus according to claim 32, wherein the control unit comprises a microprocessor.

34. An apparatus, according to claim 30, wherein the wireless remote control comprises at least one external signal transmitter or transceiver and at least one implantable internal signal receiver or transceiver.

35. An apparatus according to claim 30, wherein the wireless remote control comprises at least one external signal receiver or transceiver and at least one implantable internal signal transmitter or transceiver.

36. An apparatus according to claim 30, wherein the remote control is capable of sending information related to the medical device from inside the patient'"'"'s body to the outside thereof.

37. An apparatus according to claim 31, wherein the remote control controls the medical device in response to the information.

38. An apparatus according to claim 30, wherein the remote control comprises a control signal transmitter for transmitting the at least one wireless control signal, and the energy transmission means comprises the control signal transmitter, whereby energy of the first form is transmitted by the at least one wireless control signal.

39. An apparatus according to claim 30, wherein the energy transmission means transmits energy of the first form by at least one signal separate from the at least one wireless control signal.

40. An apparatus according to claim 30, wherein the remote control transmits a carrier signal for carrying the at least one wireless control signal.

41. An apparatus according to claim 30, wherein the energy transmission means transmits energy of the first form by at least one signal, which is used as a carrier signal for the at least one wireless control signal transmitted by the remote control.

42. An apparatus according to claim 40, wherein the carrier signal is frequency or amplitude modulated.

43. An apparatus according to claim 40, wherein the carrier signal comprises digital or analog waves.

44. An apparatus according to claim 40, wherein the at least one wireless control signal used with the carrier signal is frequency or amplitude modulated.

45. An apparatus according to claim 40, wherein the at least one wireless control signal used with the carrier signal is digital or analog.

46. An apparatus according to claim 30, wherein the at least one wireless control signal comprises a wave signal comprising one of a sound wave signal including an ultrasound wave signal, an electromagnetic wave signal including an infrared light signal, a visible light signal, an ultra violet light signal and a laser light signal, a micro wave signal, a radio wave signal, an x-ray radiation signal, and a gamma radiation signal.

47. An apparatus according to claim 30, wherein the at least one wireless control signal comprises an electric or magnetic field.

48. An apparatus according to claim 30, wherein the at least one wireless control signal comprises a digital or analog control signal.

49. An apparatus according to claim 48, wherein the remote control transmits an electromagnetic carrier wave signal for carrying the digital or analog control signal.

50. An apparatus according to claim 1, wherein the energy transforming means transforms energy of the first form into a direct current or pulsating direct current.

51. An apparatus according to claim 1, wherein the energy transforming means transforms energy of the first form into an alternating current or a combination of a direct and alternating current.

52. An apparatus according to claim 1, wherein the energy of the second form comprises a frequency or amplitude modulated signal.

53. An apparatus according to claim 1, wherein the energy of the second form comprises an analog or a digital signal.

54. An apparatus according to claim 1, further comprising an implantable control unit for controlling the medical device.

55. An apparatus according to claim 54, wherein the control unit is programmable for controlling the medical device over time, and wherein the control unit controls the medical device over time in accordance with an activity schedule program.

56. An apparatus according to claim 55, further comprising an external wireless remote control for programming the control unit.

57. An apparatus according to claim 54, further comprising an implantable sensor for sensing a physical parameter of the patient.

58. An apparatus according to claim 57, wherein the control unit controls the medical device in response to signals by the sensor.

59. An apparatus according to claim 58, wherein the control unit directly controls the medical device in response to signals by the sensor.

60. An apparatus according to claim 57, further comprising an external control unit outside the patient'"'"'s body, wherein the external control unit controls the medical device in response to signals by the sensor.

61. An apparatus according to claim 1, wherein the energy of the first form comprises polarized energy.

62. An apparatus according to claim 1, further comprising an implantable pulse generator for generating electrical pulses from energy of the second form.

63. An apparatus according to claim 1, further comprising at least one implantable sensor for sensing at least one physical parameter of the patient, and an implantable sender for sending information on the at least one physical parameter sensed by the sensor.

64. An apparatus according to claim 1, further comprising an external data communicator and an implantable internal data communicator communicating with the external data communicator, wherein the internal data communicator feeds data related to the medical device back to the external data communicator or the external communicator feeds data to the internal data communicator.

65. An apparatus according to claim 64, wherein the internal data communicator feeds data related to at least one physical signal of the patient.

66. An apparatus according to claim 1, further comprising a switch for directly or indirectly switching supply of energy of the second form for the operation of the medical device.

67. An apparatus according to claim 1, further comprising implantable hydraulic means for operating the medical device, and at least one valve for controlling a fluid flow in the hydraulic means.

68. An apparatus according to claim 67, further comprising a wireless remote control for controlling the at least one valve.

69. An apparatus according to claim 1, wherein the medical device is adapted to control the size of a through-flow area of a lumen formed by an organ of the patient.

70. An apparatus according to claim 1, wherein the medical device is non-inflatable.

71. An apparatus according to claim 1, further comprising an implantable operation means for operating the medical device, wherein the medical device comprises hydraulic means, the operation means comprises a reservoir forming a fluid chamber with a variable volume connected to the hydraulic means, and the operation means distributes fluid from the chamber to the hydraulic means by reduction of the volume of the chamber and withdraws fluid from the hydraulic means to the chamber by expansion of the volume of the chamber.

72. An apparatus according to claim 1, further comprising an operation means for operating the medical device and a control device for controlling the operation means.

73. An apparatus according to claim 72, wherein the control device shifts polarity of energy of the second form to reverse the operation means.

74. An apparatus according to claim 73, wherein the operation means comprises an electric motor and energy of the second form comprises electric energy.

75. An apparatus according to claim 72, wherein the medical device is operable to perform a reversible function.

76. An apparatus according to claim 75, further comprising an implantable reversing means for reversing the function performed by the medical device.

77. An apparatus according to claim 76, wherein a control device controls the reversing means to reverse the function performed by the medical device.

78. An apparatus according to claim 76, wherein the reversing means comprises hydraulic means including a valve for shifting the flow direction of a fluid flow in the hydraulic means.

79. An apparatus according to claim 76, wherein the reversing means comprises a mechanical reversing means.

80. An apparatus according to claim 79, wherein the reversing means comprises a gearbox.

81. An apparatus according to claim 76, wherein the reversing means comprises a switch.

82. An apparatus according to claim 81, wherein the control device controls operation of the switch by shifting polarity of energy supplied to the switch.

83. An apparatus according to claim 82, wherein the switch comprises an electric switch and the implantable energy storage device supplies electric energy for the operation of the switch.

84. An apparatus according to claim 72, wherein the operation means comprises a motor.

85. An apparatus according to claim 84, wherein the motor comprises a rotary motor, and the control device controls the rotary motor to rotate a desired number of revolutions.

86. An apparatus according to claim 84, wherein the motor comprises a linear motor.

87. An apparatus according to claim 84, wherein the motor comprises a hydraulic or pneumatic fluid motor, and the control device controls the fluid flow through the hydraulic or pneumatic fluid motor.

88. An apparatus according to claim 84, wherein the motor comprises an electric motor having electrically conductive parts made of plastics.

89. An apparatus according to claim 1, further comprising an implantable operation means for operating the medical device, wherein the medical device comprises hydraulic means and the operation means comprises the pump, and wherein the pump is a pump for pumping a fluid in the hydraulic means.

90. An apparatus according to claim 89, wherein the operation means comprises a motor for driving the pump.

91. An apparatus according to claim 90, wherein the operation means comprises a fluid conduit between the pump and the hydraulic means of the medical device, and a reservoir for fluid, the reservoir forming part of the conduit.

92. An apparatus according to claim 91, wherein the conduit is devoid of any non-return valve.

93. An apparatus according to claim 91, wherein the reservoir forms a fluid chamber with a variable volume, and the pump distributes fluid from the chamber to the hydraulic means of the medical device by reduction of the volume of the chamber and withdraws fluid from the hydraulic means to the chamber by expansion of the volume of the chamber.

94. An apparatus according to claim 1, further comprising an implantable control unit for controlling the medical device, wherein the control unit comprises, a microprocessor.

95. The medical implant apparatus according to claim 1, wherein the medical device is directly operated with energy of the second form, as the energy transmission means transmits energy of the first form.

96. An apparatus according to claim 95, wherein the medical device is directly operated with energy of the second form in a non-magnetic manner.

97. An apparatus according to claim 95, wherein the medical device is directly operated with energy of the second form in a non-mechanical manner.

98. An apparatus according to claim 1, wherein the energy transforming means is adapted to be implanted subcutaneously or in the abdomen of the patient.

99. An apparatus according to claim 1, wherein the energy transforming means is adapted to be implanted in the thorax or in the cephal region of the patient.

100. An apparatus according to claim 1, wherein the energy transforming means is adapted to be implanted in an orifice of the patient'"'"'s body and under the mucosa or intraluminar outside the mucosa of the orifice.

101. An apparatus according to claim 1, wherein parts of the energy transforming means capable of being in contact with the patient when implanted are made of biocompatible material.

102. An apparatus according to claim 1, wherein the energy transforming means is structurally different, from the energy transmission means.

103. An apparatus according to claim 1, wherein the energy transforming means is adapted to transform the energy of the first form into the energy of the second form in a non-mechanical manner.