Implantable hydraulic or pneumatic pumps

Abstract

The present disclosure relates to techniques for restricting a luminal organ. More specifically, a constriction device is provided having one or more constriction elements configured to expand in a first direction toward the luminal organ to constrict a first portion of the luminal organ so as to be expanded, thereby restricting fluid flow therethrough.

Claims

1. 1. An implantable hydraulic or pneumatic pump for pumping a fluid, said implantable hydraulic pump comprising: a reservoir configured to hold a fluid to be pumped; an actuator; and a sealed container including the actuator; a first portion of the enclosed container enclosing a first container volume; a second portion of the enclosed container enclosing a second container volume; the first portion of the sealed container is configured to protrude into the reservoir such that a wall of the first portion of the sealed container forms part of a wall surrounding the reservoir; the first portion of the enclosure comprises a first movable wall portion forming part of the wall of the reservoir; the second portion of the enclosure comprises a second movable wall portion; the actuator is directly or indirectly connected to the first movable wall portion to move the movable wall portion and change the volume of the first portion of the enclosed container and the volume of the reservoir, and to pump the fluid into or out of the reservoir; when changing the volume of the reservoir to pump the fluid to or from the reservoir, movement of the first movable wall portion causes movement of the second movable wall portion which changes the volume of the second portion of the enclosed container such that the change in volume of the enclosed container is less than the change in volume of the reservoir; An implantable hydraulic or pneumatic pump for pumping said fluid.

2. 10. The implantable hydraulic or pneumatic pump of claim 1, wherein the volume of the sealed container remains substantially the same when the volume of the reservoir is changed to pump the fluid to or from the reservoir.

3. 3. The implantable hydraulic or pneumatic pump of claim 2, wherein the volume of the enclosed container changes by less than 10% when the volume of the reservoir is changed to pump the fluid to or from the reservoir.

4. 4. The implantable hydraulic or pneumatic pump of claim 3, wherein the volume of the enclosed container changes by less than 5% when the volume of the reservoir is changed to pump the fluid to or from the reservoir.

5. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein at least a part of the first movable wall portion is in contact with the fluid in the reservoir and comprises a metal.

6. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein at least a portion of said second movable wall portion comprises metal.

7. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 6, wherein at least 50% of the area of ​​the wall surrounding the enclosed container comprises metal.

8. 5. The implantable hydraulic or pneumatic pump of claim 4, wherein at least 80% of the area of ​​the wall surrounding the enclosure comprises metal.

9. 9. The implantable hydraulic or pneumatic pump of claim 8, wherein at least 90% of the area of ​​the wall surrounding the enclosure comprises metal.

10. 10. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 9, wherein at least one of the first and second portions of the sealed can comprises an ascending portion and a descending portion, the ascending portion and the descending portion enabling at least one of compression and expansion of the sealed can.

11. 11. The implantable hydraulic or pneumatic pump of claim 10, wherein at least one of the first and second portions of the enclosed can includes a bellows.

12. 12. The implantable hydraulic or pneumatic pump of claim 11, wherein the bellows comprises a metal.

13. 13. The implantable hydraulic or pneumatic pump of claim 12, wherein said bellows is a metal bellows.

14. the first portion of the enclosure comprises an ascending portion and a descending portion; and the second portion of the enclosure comprises an ascending portion and a descending portion; the ascending portion and the descending portion permitting compression and expansion of the first and second portions of the enclosed container. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 13.

15. further comprising a connecting element configured to couple the first movable wall portion to the second movable wall portion such that movement of the first movable wall portion is propagated to the second movable wall portion. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 14.

16. The connecting element is Long and thin, Located inside the sealed container, a first portion fixed directly or indirectly to the first movable wall portion; and a second portion fixed directly or indirectly to the second movable wall portion; 16. An implantable hydraulic or pneumatic pump according to claim 15.

17. 17. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 16, wherein the first portion of the sealed container is variable such that the volume of the first portion of the sealed container is greater than 20% of the volume of the sealed container.

18. 18. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 17, wherein the first portion of the sealed container is variable such that the volume of the first portion of the sealed container is greater than 40% of the volume of the sealed container.

19. 19. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 18, wherein the volume of the first portion of the sealed container is variable such that it is greater than 40% of the maximum volume of the reservoir.

20. 20. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 19, wherein the volume of the first portion of the sealed container is variable so that it is greater than 60% of the volume of the maximum volume of the reservoir.

21. 21. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 20, wherein at least one of the first and second parts of the sealed can comprises at least one flexible portion, the flexible portion allowing at least one of compression and expansion of the sealed can.

22. 22. The implantable hydraulic or pneumatic pump of claim 21, wherein at least one of the first and second portions of the sealed can includes at least one elastic portion, the elastic portion enabling at least one of compression and expansion of the sealed can.

23. 23. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein at least one of the first and second portions of the enclosed can comprises an elliptical cross section.

24. 24. The implantable hydraulic or pneumatic pump of claim 23, wherein at least one of the first and second portions of the enclosure comprises an elliptical cross-section.

25. 25. The implantable hydraulic or pneumatic pump of claim 24, wherein at least one of the first portion and the second portion of the enclosed can comprises a circular cross-section.

26. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 25, wherein the sealed container is adapted to contain a gas.

27. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein the enclosed container further comprises an implantable energy source for powering the actuator.

28. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein the enclosed container further comprises a controller for controlling operation of the actuator.

29. 29. The implantable hydraulic or pneumatic pump of any one of claims 1 to 28, wherein the enclosed container further comprises at least one sensor or measuring device for measuring at least one of the following: the pressure inside the sealed container; the pressure in the reservoir; pressure inside the patient's body, a pressure difference between the pressure in the enclosure and the pressure in the reservoir; and The pressure difference between the pressure inside the enclosure and the pressure inside the patient's body.

30. 30. The implantable hydraulic or pneumatic pump of claim 29, wherein the controller is configured to control operation of the actuator based on input from the sensor or measuring device.

31. 31. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 30, further comprising at least one conduit for connecting the reservoir to an active part of an implant configured to receive the fluid pumped by the implantable hydraulic pump.

32. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein the reservoir comprises an oval cross section.

33. 33. The implantable hydraulic or pneumatic pump of claim 32, wherein the reservoir comprises an oval cross-section.

34. 34. The implantable hydraulic or pneumatic pump of claim 33, wherein the reservoir comprises a circular cross section.

35. An implantable hydraulic or pneumatic pump according to any preceding claim, wherein the actuator comprises at least one electric motor.

36. 36. The implantable hydraulic or pneumatic pump of claim 35, wherein the electric motor is at least partially disposed in the first portion.

37. The actuator comprises at least one transmission, the transmission comprising: subjected to mechanical forces, and An implantable hydraulic or pneumatic pump according to any preceding claim, configured to reduce the speed and increase the mechanical force to which it is subjected.

38. 38. The implantable hydraulic or pneumatic pump of claim 37, wherein the transmission comprises a gear system configured to reduce speed and increase mechanical forces received.

39. 39. An implantable hydraulic or pneumatic pump according to any one of claims 37 to 38, wherein the receiving portion is configured to receive a rotational mechanical force, and the transmission is configured to convert the received rotational mechanical force into a linear mechanical force.

40. An implantable hydraulic or pneumatic pump according to any one of claims 37 to 39, wherein the transmission comprises a receiver connected to the electric motor.

41. 41. An implantable hydraulic or pneumatic pump according to any one of claims 37 to 40, wherein the transmission is at least partially disposed within the first portion of the enclosed can.

42. 42. An implantable hydraulic or pneumatic pump according to any one of claims 35 to 41, wherein at least one of the electric motor and the transmission is fixedly secured to a wall of the reservoir.

43. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 42, wherein the sealed container is hermetically enclosed by a metal layer.

44. 43. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 42, wherein a portion of a wall of the sealed container comprises at least one sealed inlet for transmitting an electrical signal into the sealed container.

45. 45. The implantable hydraulic or pneumatic pump of claim 44, wherein the sealed inlet comprises a ceramic material.

46. 46. ​​The implantable hydraulic or pneumatic pump of any one of claims 1 to 45, further comprising a second reservoir configured to hold a fluid to be pumped, wherein the second portion of the enclosed container is configured to protrude into the second reservoir such that a wall of the second portion of the enclosed container forms part of a wall surrounding the second reservoir, and wherein the actuator is directly or indirectly connected to the second movable wall portion to move the second movable wall portion and change a volume of the second portion of the enclosed container and a volume of the second reservoir and to pump the fluid to or from the second reservoir, and wherein when the volume of the second reservoir changes to pump the fluid to or from the second reservoir, the change in volume of the enclosed container is less than the change in volume of the second reservoir.

47. 47. The implantable hydraulic or pneumatic pump of claim 46, further comprising at least one conduit for connecting the second reservoir to an active portion of the implant configured to receive fluid pumped by the implantable hydraulic pump.

48. Actuating the actuator in a first direction includes: transferring fluid from the first reservoir to an active portion of the implant; transferring fluid from an active portion of the implant to said second reservoir; actuating the actuator in a second direction; transferring fluid from an active portion of the implant to said first reservoir; transferring fluid from said second reservoir to the active portion of the implant; 48. An implantable hydraulic or pneumatic pump according to any one of claims 46 and 47.

49. At least one of the first and second reservoirs is compressible and includes a third movable wall portion; and the first movable wall portion of the first portion of the enclosure; or the second movable wall portion of the second portion of the enclosed vessel; 48. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 47, wherein movement of said third movable wall portion compresses said first or second reservoir and moves said third movable wall portion which pumps hydraulic fluid from said first or second reservoir.

50. Actuating the actuator in a first direction includes: transferring fluid from the first reservoir to the active portion of the implant; and transferring fluid from said second reservoir to an active portion of the implant; Actuating the actuator in a second direction includes: transferring fluid from an active portion of the implant to said first reservoir; transferring fluid from the active portion of the implant to the second reservoir; 50. An implantable hydraulic or pneumatic pump according to claim 49.

51. 51. An implantable hydraulic or pneumatic pump according to any one of claims 49 and 50, wherein the third movable wall portion is mechanically coupled to one of the first and second movable wall portions.

52. 52. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 51, further comprising a pressure redirection device connected to at least one of the first and second reservoirs for redirecting the flow of the hydraulic liquid.

53. Actuating the actuator in a first direction includes: transferring fluid from the first reservoir to the active portion of the implant; and transferring fluid from said second reservoir to an active portion of the implant; Actuating the actuator in a second direction includes: transferring fluid from an active portion of the implant to the first reservoir; and 53. The implantable hydraulic or pneumatic pump of claim 52, wherein the second reservoir is connected to the pressure redirection device so as to transfer fluid from an active portion of the implant to the second reservoir.

54. 54. An implantable hydraulic or pneumatic pump as described in any one of claims 52 and 53, wherein the pressure redirection device comprises at least one displacement reservoir configured to hold the hydraulic liquid, the displacement reservoir comprising a movable wall portion, and wherein compression of at least a portion of the sealed container causes movement of the movable wall portion, which causes compression of the displacement reservoir so that hydraulic liquid is pumped out of the displacement reservoir.

55. 55. The implantable hydraulic or pneumatic pump of claim 54, wherein the displacement reservoir is directly or indirectly connected to at least one of the first movable wall portion of the first portion of the enclosed container and the second movable wall portion of the second portion of the enclosed container.

56. 56. The implantable hydraulic or pneumatic pump of claim 55, wherein the displacement reservoir is in fluid communication with at least one of the first movable wall portion of the first portion of the enclosed container and the second movable wall portion of the second portion of the enclosed container.

57. 57. The implantable hydraulic or pneumatic pump of claim 56, further comprising a hydraulic actuator in fluid communication with at least one of a first movable wall portion of the first portion of the enclosed can and a second movable wall portion of the second portion of the enclosed can.

58. The hydraulic actuator Hydraulic cylinders and 58. An implantable hydraulic or pneumatic pump according to claim 57, comprising one of: a. an actuating reservoir;

59. 59. The implantable hydraulic or pneumatic pump of claim 58, wherein the hydraulic actuator is mechanically connected to the displacement reservoir.

60. 60. An implantable hydraulic or pneumatic pump according to any one of claims 57 to 59, further comprising a fluid conduit connecting the hydraulic actuator to at least one of the first reservoir and the second reservoir.

61. 61. The implantable hydraulic or pneumatic pump of any one of claims 49 to 60, wherein at least one of the first reservoir, the second reservoir, the hydraulic actuator and the displacement reservoir comprises ascending and descending portions that allow at least one of compression and expansion of at least one of the first reservoir, the second reservoir, the hydraulic actuator and the displacement reservoir.

62. 62. The implantable hydraulic or pneumatic pump of claim 61, wherein at least one of the first reservoir, the second reservoir, the hydraulic actuator, and the displacement reservoir comprises a bellows.

63. 63. An implantable hydraulic or pneumatic pump according to any one of claims 52 to 62, further comprising a second pressure redirection device connected to at least one of the first and second reservoirs for redirecting the flow of hydraulic liquid.

64. 64. The implantable hydraulic or pneumatic pump of claim 63, wherein the first and second pressure redirection devices are both connected to one of the first and second reservoirs for redirecting the flow of hydraulic liquid.

65. 65. An implantable hydraulic or pneumatic pump according to any one of claims 52 to 64, wherein at least one of the first and second pressure redirection devices comprises first and second displacement reservoirs for redirecting the flow of hydraulic liquid.

66. the first reservoir comprises first and second reservoir portions fluidly separated from one another; and / or the second reservoir comprising a third reservoir portion and a fourth reservoir portion fluidly separated from one another; An implantable hydraulic or pneumatic pump according to any one of claims 1 to 65.

67. compression of the first reservoir results in compression of the first reservoir portion and the second reservoir portion of the first reservoir; and / or compressing the second reservoir compresses the third reservoir portion and the fourth reservoir portion of the second reservoir; 67. An implantable hydraulic or pneumatic pump according to claim 66.

68. a first conduit for connecting the first reservoir portion to an active portion of an implant and a second conduit for connecting the second reservoir portion to an active portion of an implant; and / or a third conduit for connecting the third reservoir portion to the active portion of the implant and a fourth conduit for connecting the fourth reservoir portion to the active portion of the implant.

68. An implantable hydraulic or pneumatic pump according to any one of claims 66 and 67, further comprising:

69. 69. The implantable hydraulic or pneumatic pump of any one of claims 66 to 68, wherein at least one of the first reservoir portion, the second reservoir portion, the third reservoir portion, and the fourth reservoir portion comprises ascending and descending portions that allow at least one of compression and expansion of at least one of the first reservoir portion, the second reservoir portion, the third reservoir portion, and the fourth reservoir portion.

70. 70. The implantable fluid or pneumatic pump of claim 69, wherein at least one of the first reservoir portion, the second reservoir portion, the third reservoir portion, and the fourth reservoir portion comprises a bellows.

71. 71. An implantable hydraulic or pneumatic pump according to any one of claims 1 to 70, wherein at least a portion of a wall of at least one of the sealed container, the first reservoir, the second reservoir and the displacement reservoir comprises titanium.

72. 72. The implantable hydraulic or pneumatic pump of claim 71, wherein at least one of the sealed container, the first reservoir, the second reservoir, and the displacement reservoir comprises a titanium bellows.

73. 73. An implantable device for exerting a force on a body part of a patient, comprising an implantable hydraulic or pneumatic device according to any one of claims 1 to 72 and an implantable active part including an implantable element configured to exert a force on the body part of the patient.

74. 74. The implantable device of claim 73, wherein the implantable element configured to exert a force on a body part of the patient comprises an implantable hydraulic constriction device for constricting a hollow organ of the patient.

75. 75. The implantable device of claim 74, wherein the implantable hydraulic constriction device comprises an implantable hydraulic constriction device for constricting the patient's intestine.

76. 76. The implantable device of claim 75, wherein the implantable hydraulic constriction device comprises an implantable hydraulic constriction device for constricting the patient's colon or rectum.

77. 76. The implantable device of claim 75, wherein the implantable hydraulic constriction device comprises an implantable hydraulic constriction device for constricting the intestine in the region of the patient's stoma.

78. 78. The implantable device of claim 77, wherein the implantable hydraulic constriction device comprises an implantable hydraulic constriction device for constricting a blood vessel of the patient.

79. 79. The implantable device of claim 78, wherein the implantable hydraulic constriction device for constricting the patient's blood vessels is configured to constrict venous blood flow leading from the erectile tissue to facilitate anchoring of the erectile tissue.

80. 75. The implantable device of claim 74, wherein the implantable hydraulic constriction device comprises an implantable hydraulic constriction device for constricting the patient's vas deferens.

81. 74. The implantable device of claim 73, wherein the implantable element configured to exert a force on a body part of the patient is an implantable element for actively emptying the patient's bladder.

82. 82. The implantable device of claim 81, wherein the implantable element for actively emptying the patient's bladder is configured to empty the patient's bladder by compressing the patient's bladder from the outside thereof.

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