IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0751688
(2004-01-05)
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발명자
/ 주소 |
- Saunders,H. Duane
- Stultz,Mark R.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
14 인용 특허 :
50 |
초록
▼
A low-cost, light weight portable lumbar fraction device for home use by a patient including a support structure having a longitudinal axis and a carriage slidable along a portion of the support structure parallel to the longitudinal axis. The carriage includes a restraining mechanism adapted to rel
A low-cost, light weight portable lumbar fraction device for home use by a patient including a support structure having a longitudinal axis and a carriage slidable along a portion of the support structure parallel to the longitudinal axis. The carriage includes a restraining mechanism adapted to releasably restrain a portion of a patient's body to the carriage. The pneumatic fraction force generating apparatus includes at least one pneumatic chamber and at least one air inlet. The pneumatic traction force generating apparatus is operatively coupled to both the carriage and the support structure to move the carriage relative to the support structure when the at least one pneumatic chamber is in a pressurized state. The pneumatic fraction force generating apparatus is adapted to maintain a generally static fraction force for a period in excess of 10 minutes when in the pressurized state without additional pressurized air being supplied. A hand pump operated by the patient is fluidly connected to the at least one pneumatic chamber for injecting pressurized air into the at least one pneumatic chamber. The hand pump is capable of injecting at least 138 kPa (20 psi) of pressure into the pneumatic chamber. A pressure relief mechanism operated by the patient is adapted to release pressure from the at least one pneumatic chamber.
대표청구항
▼
What is claimed is: 1. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: a support structure having a longitudinal axis; a carriage slidable along a portion of the support structure parallel to the longitudinal axis, the carriage including a restraining
What is claimed is: 1. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: a support structure having a longitudinal axis; a carriage slidable along a portion of the support structure parallel to the longitudinal axis, the carriage including a restraining mechanism adapted to releasably restrain a portion of a patient's body to the carriage; a pneumatic traction force generating apparatus comprising at least one pneumatic chamber and at least one air inlet, the pneumatic traction force generating apparatus operatively coupled to both the carriage and the support structure to move the carriage relative to the support structure when the at least one pneumatic chamber is in a pressurized state, the pneumatic traction force generating apparatus adapted to maintain a generally static traction force for a period in excess of 10 minutes when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic chamber for injecting pressurized air into the at least one pneumatic chamber, the hand pump being capable of injecting at least 138 kPa (20 psi) of pressure into the pneumatic chamber; and a pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic chamber. 2. The apparatus of claim 1 wherein the restraining mechanism comprises a waist belt adapted to releasably restrain a portion of the patient's lower body to the carriage and a restraining belt adapted to restrain a portion of the patient's upper body to the support structure. 3. The apparatus of claim 1 wherein the restraining mechanism comprises a pair of opposing, laterally adjustable hip gripping supports contoured and arranged to engage with the superior edge of the patient's pelvis as the carriage slides along the support structure. 4. The apparatus of claim 1 wherein the carriage comprises a support surface to receive a portion of the patient's lower body and a counter traction restraint to restrain a portion of the patient's upper body to the support structure, the carriage sliding in a direction away from the counter traction restraint when pressurized air is introduced into the at least one pneumatic chamber. 5. The apparatus of claim 1 wherein the at least one pneumatic chamber is capable of maintaining a generally static traction force of greater than 111 N (25 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic chamber. 6. The apparatus of claim 1 wherein the at least one pneumatic chamber is capable of maintaining a generally static traction force of greater than 200 N (45 pounds) for a period in excess of 20 minutes without additional pressurized air being injected into the at least one pneumatic chamber. 7. The apparatus of claim 1 wherein the at least one pneumatic chamber is capable of maintaining a generally static traction force of greater than 445 N (100 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic chamber. 8. The apparatus of claim 1 wherein the at least one pneumatic chamber is capable of maintaining a generally static traction force of greater than 890 N (200 pounds) for a period in excess of 20 minutes without additional pressurized air being injected into the at least one pneumatic chamber. 9. The apparatus of claim 1 comprising a gauge indicating traction force. 10. The apparatus of claim 1 comprising at least one pressure regulator adapted to prevent the pressure in the at least one pneumatic chamber from exceeding a predetermined value. 11. The apparatus of claim 1 wherein the pressure relief mechanism is incorporated in the hand pump. 12. The apparatus of claim 1 wherein the pneumatic traction force generating apparatus comprises at least one pneumatic cylinder. 13. The apparatus of claim 1 wherein the pneumatic traction force generating apparatus comprises at least one pneumatic cylinder and at least one pressure activated seal in the pneumatic cylinder extending circumferentially around a piston, the pressure activated seal movable between a relaxed position and an extended position so the pressure activated seal engages an internal surface on the pneumatic cylinder when the pneumatic cylinder is in the pressurized state. 14. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: an upper body support platform having an upper body support surface; a lower body support platform having a lower body support surface; a restraining mechanism adapted to releasably restrain a portion of a patient's body to at least one of the upper or lower body support platforms; at least one pneumatic traction force generating apparatus comprising at least one pneumatic chamber and at least one air inlet, the traction force generating apparatus operatively coupled to at least one of the upper or lower body support platforms to displace at least one of the upper and lower body support platforms relative to the other along a longitudinal axis, the at least one pneumatic traction force generating apparatus maintaining a generally static traction force for a period in excess of 10 minutes when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic traction force generating apparatus for injecting pressurized air into the at least one pneumatic traction force generating apparatus, the hand pump being capable of injecting at least 138 kPa (20 psi) of pressure into the at least one pneumatic traction force generating apparatus; and a pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic chamber. 15. The apparatus of claim 14 comprising a hinge connecting the upper body support platform to the lower body support platform. 16. The apparatus of claim 14 wherein the restraining mechanism comprises a waist belt adapted to releasably restrain a portion of the patient's lower body to the lower body support platform and a restraining belt adapted to restrain a portion of the patient's upper body to the upper body support platform. 17. The apparatus of claim 14 wherein the restraining mechanism comprises a pair of opposing, laterally adjustable hip gripping supports contoured and arranged to engage with a superior edge of the patient's pelvis as the lower body support platform slides along the support structure. 18. The apparatus of claim 14 wherein at least a portion of the restraining mechanism comprises friction between at least one of the body support surfaces and a portion of the patient. 19. The apparatus of claim 14 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 111 N (25 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic traction force generating apparatus. 20. The apparatus of claim 14 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 200 N (45 pounds) for a period in excess of 20 minutes without additional pressurized air being injected into the at least one pneumatic traction force generating apparatus. 21. The apparatus of claim 14 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 445 N (100 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic traction force generating apparatus. 22. The apparatus of claim 14 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 890 N (200 pounds) for a period in excess of 20 minutes without additional pressurized air being injected into the at least one pneumatic traction force generating apparatus. 23. The apparatus of claim 14 comprising a gauge indicating traction force. 24. The apparatus of claim 14 comprising at least one pressure regulator adapted to prevent the pressure in the at least one pneumatic traction force generating apparatus from exceeding a predetermined value. 25. The apparatus of claim 14 wherein the user pressure relief mechanism is incorporated in the hand pump. 26. The apparatus of claim 14 comprising a hinge connecting the upper body support platform to the lower body support platform to facilitate shipping and storage of the portable lumbar traction device. 27. The apparatus of claim 14 wherein the upper and lower body support platforms are adapted to be positioned on a floor. 28. The apparatus of claim 14 wherein the pneumatic traction force generating apparatus comprises at least one pneumatic cylinder. 29. The apparatus of claim 14 wherein the pneumatic traction force generating apparatus comprises at least one pneumatic cylinder and at least one pressure activated seal in the pneumatic cylinder extending circumferentially around a piston, the pressure activated seal 30. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: a support structure having a track; a carriage slidable along a portion of the track; a restraining mechanism adapted to releasably restrain a portion of a patient's body to the carriage; at least one pneumatic cylinder operatively coupled to the carriage and the support structure to move the carriage along the track relative to the support structure when in a pressurized state, the at least one pneumatic cylinder maintaining a generally static traction force during a treatment period when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic cylinder and adapted to inject pressurized air into the at least one pneumatic cylinder; and a pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic cylinder. 31. The apparatus of claim 30 wherein the pump further includes a gauge indicating traction force. 32. The apparatus of claim 30 wherein the pneumatic cylinder includes at least one pressure regulator to prevent the pressure in the at least one pneumatic cylinder from exceeding a predetermined value. 33. The apparatus of claim 30 wherein the pump includes a pressure relief mechanism to manually release pressure in the at least one pneumatic cylinder. 34. The apparatus of claim 30 wherein the pneumatic cylinder comprises at least one pressure activated seal extending circumferentially around a piston, the pressure activated seal movable between a relaxed position and an extended position so the pressure activated seal engages an internal surface on the pneumatic cylinder when the pneumatic cylinder is in the pressurized state. 35. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: an upper body support platform having an upper body support surface; a lower body support platform having a lower body support surface; a restraining mechanism adapted to releasably restrain a portion of a patient's body to at least one of the upper or lower body support platforms; at least one pneumatic cylinder adapted to displace at least one of the upper and lower body support platforms relative to the other along a longitudinal axis, the at least one pneumatic cylinder maintaining a generally static traction force during a treatment period when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic cylinder for injecting pressurized air into the at least one pneumatic cylinder, the hand pump being capable of injecting at least 138 kPa (20 psi) of pressure into the at least one pneumatic cylinder; and a pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic cylinder. 36. The apparatus of claim 35 comprising a hinge connecting the upper body support platform to the lower body support platform. 37. The apparatus of claim 35 wherein the restraining mechanism comprises a waist belt adapted to releasably restrain a portion of the patient's lower body to the lower body support platform and a restraining belt adapted to restrain a portion of the patient's upper body to the upper body support platform. 38. The apparatus of claim 35 wherein the restraining mechanism comprises a pair of opposing, laterally adjustable hip gripping supports contoured and arranged to engage with a superior edge of the patient's pelvis as the lower body support platform slides along the support structure. 39. The apparatus of claim 35 wherein at least a portion of the restraining mechanism comprises friction between at least one of the body support surfaces and a portion of the patient. 40. The apparatus of claim 35 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 111 N (25 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 41. The apparatus of claim 35 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 200 N (45 pounds) for a period in excess of 20 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 42. The apparatus of claim 35 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 445 N (100 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 43. The apparatus of claim 35 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 890 N (200 pounds) for a period in excess of 20 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 44. The apparatus of claim 35 comprising a gauge indicating traction force. 45. The apparatus of claim 35 comprising at least one pressure regulator adapted to prevent the pressure in the at least one pneumatic cylinder from exceeding a predetermined value. 46. The apparatus of claim 35 wherein the pressure relief mechanism is incorporated in the hand pump. 47. The apparatus of claim 35 comprising a hinge connecting the upper body support platform to the lower body support platform to facilitate shipping and storage of the portable lumbar traction device. 48. The apparatus of claim 35 wherein the upper and lower body support platforms are adapted to be positioned on a floor. 49. The apparatus of claim 35 wherein the pneumatic cylinder comprises at least one pressure activated seal extending circumferentially around a piston, the pressure activated seal movable between a relaxed position and an extended position so the pressure activated seal engages an internal surface on the pneumatic cylinder when the pneumatic cylinder is in the pressurized state. 50. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: a support structure having a track; at least one carriage slidable along a portion of the track; a restraining mechanism adapted to releasably restrain a portion of a patient's body to the carriage; a pneumatic traction force generating apparatus comprising at least one pneumatic cylinder having a first end and a moveable piston at a second end, one of the pneumatic cylinder or the piston attached to a support structure, and the other attached to the carriage, the at least one pneumatic cylinder adapted to move the carriage along the track relative to the support structure when in a pressurized state, the pneumatic traction force generating apparatus maintaining a generally static traction force during a treatment period when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic cylinder and adapted to inject pressurized air into the at least one pneumatic cylinder; and a pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic cylinder. 51. The apparatus of claim 50 wherein the pressure relief mechanism is incorporated in the hand pump. 52. The apparatus of claim 50 wherein the carriage comprises: an upper body support platform having an upper body support surface; and a lower body support platform having a lower body support surface. 53. The apparatus of claim 50 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 111 N (25 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 54. The apparatus of claim 50 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 200 N (45 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 55. The apparatus of claim 50 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 445 N (100 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 56. The apparatus of claim 50 wherein the at least one pneumatic cylinder is capable of maintaining a generally static traction force of greater than 890 N (200 pounds) for a period in excess of 10 minutes without additional pressurized air being injected into the at least one pneumatic cylinder. 57. The apparatus of claim 50 wherein the pneumatic cylinder comprises at least one pressure activated seal extending circumferentially around a piston, the pressure activated seal movable between a relaxed position and an extended position so the pressure activated seal engages an internal surface on the pneumatic cylinder when the pneumatic cylinder is in the pressurized state. 58. A low-cost, light weight portable traction device for home use by a patient comprising: a support structure; a carriage generally slidable along a portion of the support structure, the carriage including a restraining mechanism adapted to releasably restrain a portion of a patient's body to the carriage; at least one pneumatic traction force generating apparatus comprising at least one pneumatic chamber and at least one air inlet, the traction force generating apparatus operatively coupled to the carriage and the support structure to move the carriage relative to the support structure when the at least one pneumatic traction force generating apparatus is in a pressurized state, the at least one pneumatic traction force generating apparatus maintaining a generally static traction force for a period in excess of 10 minutes when in the pressurized state without additional air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic traction force generating apparatus for injecting air into the at least one pneumatic traction force generating apparatus; and a user operated pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic chamber. 59. The apparatus of claim 58 wherein the restraining mechanism comprises first and second belts, the first belt being adapted to releasably restrain a first portion of the patient's body to the carriage and the second belt adapted to restrain second portion of the patient's body to the support structure. 60. The apparatus of claim 59 wherein the first belt is adapted to releasably restrain a portion of the patient's lower body to the carriage and the second belt is adapted to restrain a portion of the patient's upper body to the support structure. 61. The apparatus of claim 59 wherein the first belt is adapted to releasably restrain a portion of the patient's upper body to the carriage and the second belt is adapted to restrain a portion of the patient's body to the support structure. 62. The apparatus of claim 58 wherein the restraining mechanism comprises a pair of opposing, laterally adjustable gripping supports. 63. The apparatus of claim 62 wherein the laterally adjustable gripping supports are contoured and arranged to engage with the superior edge of the patient's pelvis as the carriage slides along the support structure. 64. The apparatus of claim 58 wherein the carriage comprises a support surface to receive a portion of the patient's lower body and a counter traction restraint to restrain a portion of the patient's upper body to the support structure, the carriage sliding in a direction away from the counter traction restraint when air is introduced into the at least one pneumatic traction force generating apparatus. 65. The apparatus of claim 58 wherein the carriage comprises a support surface to receive a portion of the patient's upper body and a counter traction restraint to restrain a portion of the patient's body to the support structure, the carriage sliding in a direction away from the counter traction restraint when air is introduced into the at least one pneumatic traction force generating apparatus. 66. The apparatus of claim 58 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 20 pounds for a period in excess of 10 minutes without additional air being injected into the at least one pneumatic traction force generating apparatus. 67. The apparatus of claim 58 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 111 N (25 pounds) for a period in excess of 10 minutes without additional air being injected into the at least one pneumatic traction force generating apparatus. 68. The apparatus of claim 58 wherein the at least one pneumatic traction force generating apparatus-is capable of maintaining a generally static traction force of greater than 200 N (45 pounds) for a period in excess of 20 minutes without additional air being injected into the at least one pneumatic traction force generating apparatus. 69. The apparatus of claim 58 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 445 N (100 pounds) for a period in excess of 10 minutes without additional air being injected into the at least one pneumatic traction force generating apparatus. 70. The apparatus of claim 58 wherein the at least one pneumatic traction force generating apparatus is capable of maintaining a generally static traction force of greater than 890 N (200 pounds) for a period in excess of 20 minutes without additional air being injected into the at least one pneumatic traction force generating apparatus. 71. The apparatus of claim 58 comprising a gauge indicating traction force. 72. The apparatus of claim 58 comprising at least one pressure regulator adapted to prevent the pressure in the at least one pneumatic traction force generating apparatus from exceeding a predetermined value. 73. The apparatus of claim 58 wherein the pressure release mechanism is incorporated in the hand pump. 74. The apparatus of claim 58 wherein the pneumatic chamber comprises at least one pressure activated seal in the pneumatic cylinder extending circumferentially around a piston, the pressure activated seal movable between a relaxed position and an extended position so the pressure activated seal engages an internal surface on the pneumatic chamber when the pneumatic chamber is in the pressurized state. 75. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: a support structure having a longitudinal axis; a carriage slidable along a portion of the support structure parallel to the longitudinal axis, the carriage including a restraining mechanism adapted to releasably restrain a portion of a patients body to the carriage; at least one pneumatic traction force generating means for moving the carriage relative to the support structure when the at least one pneumatic traction force generating means is in a pressurized state, the at least one a pneumatic traction force generating means maintaining a generally static traction force for a period in excess of 10 minutes when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one a pneumatic traction force generating means for injecting pressurized air into the at least one pneumatic traction force generating means, the hand pump capable of injecting at least 138 kPa (20 psi) of pressure into the pneumatic traction force generating means; and a pressure relief mechanism overated by the patient adapted to release pressure from the at least one pneumatic traction force generating means. 76. A low-cost, light weight portable lumbar traction device for home use by a patient comprising: an upper body support platform having an upper body support surface; a lower body support platform having a lower body support surface; a restraining mechanism adapted to releasably restrain a portion of a patient's body to at least one of the upper or lower body support platforms; at least one pneumatic traction force generating means for displacing at least one of the upper and lower body support platforms relative to the other along a longitudinal axis, the at least one pneumatic traction force generating means maintaining a generally static traction force for a period in excess of 10 minutes when in the pressurized state without additional pressurized air being supplied; a hand pump operated by the patient fluidly connected to the at least one pneumatic traction force generating means for injecting pressurized air into the at least one pneumatic traction force generating means, the hand pump being capable of injecting at least 138 kPa (20 psi) of pressure into the at least one pneumatic traction force generating means; and a pressure relief mechanism operated by the patient adapted to release pressure from the at least one pneumatic traction force generating means.
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