US3783859A - Novel external circulatory assist device - Google Patents

Novel external circulatory assist device Download PDF

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US3783859A
US3783859A US00297250A US3783859DA US3783859A US 3783859 A US3783859 A US 3783859A US 00297250 A US00297250 A US 00297250A US 3783859D A US3783859D A US 3783859DA US 3783859 A US3783859 A US 3783859A
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liquid
shells
lift
bladder
limb
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US00297250A
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H Sauer
N Hagopian
J Colman
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Intermedics Cardiassist Corp
MEDICAL INNOVATIONS Inc
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MEDICAL INNOVATIONS Inc
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Assigned to INTERMEDICS, INC., INTERMEDICS CARDIASSIST, INC., INTERMEDICS INTRAOCULAR, INC., SURGITRONICS CORPORATION, CARBOMEDICS, INC., NEUROMEDICS, INC., CALCITEK, INC., INTERVASCULAR, INC., AND MASTER IMAGES, INC., TEXAS CORPORATIONS, AND AMERICANPACEMAKER CORPORATION, A CORP. OF MA. reassignment INTERMEDICS, INC., INTERMEDICS CARDIASSIST, INC., INTERMEDICS INTRAOCULAR, INC., SURGITRONICS CORPORATION, CARBOMEDICS, INC., NEUROMEDICS, INC., CALCITEK, INC., INTERVASCULAR, INC., AND MASTER IMAGES, INC., TEXAS CORPORATIONS, AND AMERICANPACEMAKER CORPORATION, A CORP. OF MA. SAID PARTIES RECITES OBLIGATIONS RECITED IN SECURITY AGREEMENT RECORDED SEPTEMBER 17, 1984 REEL 4303 FRAMES 077-127 HAVE BEEN PAID IN FULL ALL SEE RECORD FOR DETIALS Assignors: CITIBANK, N.A., INDIVIDUALLY AND AS AGENT FOR BANK OF AMERICA NATIONAL TRUST AND SAVINGS ASSOCIATION, THE CHASE MANHATTAN BANK, N.A., THE FIRST NATIONAL BANK OF CHICAGO, TRUST COMPANY BANK, FIRST FREEPORT NATIONAL BANK OF BRAZOSPORT BANK OF TEXAS
Assigned to INTERMEDICS, INC., INTERMEDICS CARDIASSIST, INC., INTERMEDICS INTRAOCULAR, INC., SURGITRONICS CORPORATION, CARBOMEDICS, INC., NEUROMEDICS, INC., CALCITEK, INC., TEXAS CORPORATION AND AMERICAN PACEMAKER CORPORATION, A CORP OF MASS. reassignment INTERMEDICS, INC., INTERMEDICS CARDIASSIST, INC., INTERMEDICS INTRAOCULAR, INC., SURGITRONICS CORPORATION, CARBOMEDICS, INC., NEUROMEDICS, INC., CALCITEK, INC., TEXAS CORPORATION AND AMERICAN PACEMAKER CORPORATION, A CORP OF MASS. SECURED PARTY HEREBY RELEASE THE SECURITY INTEREST IN AGREEMENT RECORDED AUGUST 5, 1985. REEL 4434 FRAMES 728-782 Assignors: CITIBANK, N.A.
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Assigned to INTERMEDICS INTRAOCULAR, INC., A TEXAS CORP., CARBOMEDICS, INC., A TEXAS CORP., INTERMEDICS CARDIASSIST, INC., A TEXAS CORP., INTERMEDICS, INC., A TEXAS CORP., SURGITRONICS CORPORATION, A TEXAS CORP., AMERICAN PACEMAKER CORPORATION, A MASSACHUSETTS CORP., NEUROMEDICS, INC., A TEXAS CORP., CALCITEK, INC., A TEXAS CORP. reassignment INTERMEDICS INTRAOCULAR, INC., A TEXAS CORP. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: B. A. LEASING CORPORATION
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H9/00—Pneumatic or hydraulic massage
    • A61H9/005—Pneumatic massage
    • A61H9/0078—Pneumatic massage with intermittent or alternately inflated bladders or cuffs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H31/00—Artificial respiration or heart stimulation, e.g. heart massage
    • A61H31/004—Heart stimulation
    • A61H31/006—Power driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1238—Driving means with hydraulic or pneumatic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/10—Leg

Definitions

  • ABSTRACT Novel external pressure circulatory assist apparatus utilizing movement of a shell portion of a limbenclosing housing as a mechanical means for applying the requisite cyclic pressure to the limbs of a patient being treated.
  • the prior art devices usually achieved pressure by having liquid pressure cycled by a pump means attached to a liquid reservoir surrounding the legs of a patient being treated.
  • a pump means attached to a liquid reservoir surrounding the legs of a patient being treated.
  • apparatus has been developed whereby a mechanical platen rises and falls while in contact with a constrained leg-enclosing, reservoir, thereby causing the pressure in the reservoir to cycle.
  • This older apparatus is highly satisfactory in some circumstances but, as the therapeutic value of external assist'apparatus becomes more apparent for various types of therapy the known apparatus has been found to be heavier. than is convenient for handling and portability.
  • Another object of the invention is to provide a means to achieve the simultaneous and synchronous action of two leg units with a minimum of mechanical apparatus.
  • a further object of the invention is to utilize necessary superstructure of an external circulatory assist apparatus to serve the dual function of housing and pressurizing a liquid bladder.
  • Another object of the invention is to provide a pressurizing means having sufficient displacement capacity to provide suitable treatment for patients with a wide variety of limb sizes and without having to change water capacity of the pressurized, liquid-containing bladder wrapped about the limbs.
  • leg housing members as the means byvwhich mechanical pressure is applied to liquid-filled blankets wrapped about the legs.
  • FIG. 1 is a view of a patient positioned for treatment in the apparatus of the invention.
  • F IG. 2 is a view similar to FIG. 1 excepting the apparatus is shown in'an open position, i.e., a position wherein a relatively low pressure or no pressure is exerted by the housing apparatus on the legs of the patient.
  • FIG. 3 is an elevation of the actuating mechanism with the housing in the FIG. 1 position.
  • FIG. 4 is an elevation of the actuating mechanism with the housing in the open, i.e., the FIG. 2, position.
  • Apparatus 10 is placed on a table 12 and comprises a base plate 14 on which is mounted leghousing 16 comprising two leg-holding chambers 18.
  • Each chamber 18 consists of an upper shell 20 and a lower shell 22.
  • Lower shells 22 are fixed to base plate 14.
  • Upper shells 20, however, are pivotally mounted onto the outer sides of shells 22 by quick-connecting fastening means 24.
  • the upper shell and lower shell are approximately coextensive with the legs of the patient.
  • FIGS. 3 and 4 show the means by which the. pivotallymounted shells 20 are moved.
  • Upper shells 20 are attached to generally triangular plates 26 which extend inwardly from the patients limbs. Triangular plates 26, when in the downward position shown in FIG. 3, act as lever means for applying pressure to bladders 28 which encircle the legs of the patient. Plates 26 are integral with upper shells 20 and, as a consequence, pivot on the pin members 30 of quick-connecting fastening means 32. Pin members 30 are mounted on brackets 34 and fastened to lower shells 22. The-pins extend laterally into receptacles in brackets 36 which are mounted on upper shells 20.
  • Lower shells 22 are rigidly positioned on base plate 12 and connected to one another by lower bracing plates 38 which extend between the two lower shells.
  • base plate 14 carries mechanical actuator means 40 operably connected to pivot plates 26 upwardly and downwardly in response to the action of a hydraulic cylinder 42.
  • Hydraulic cylinder 42 is mounted on base plate 14 by means of mounting bracket 44.
  • a piston 46 is connected to the cylinder, thence to two bell-cranks 48 and 48a, mounted on brackets 50 and 50a respectively, through operating rods 52 and 54.
  • bellcranks 48 and 48a When the bellcranks are rotated clockwise by a leftward movement of piston 46, they cause the downward movement of lift rods 57 and, consequently, the downward movement of plates 26 until they assume the position illustrated in FIGS. I and 3.
  • bellcranks 48 and 48a are rotated clockwise by a rightward movement of piston 46, they cause the simultaneous upward movement of lift rods 57 and the upward movement of plates 26 to assume the positionillustrated in FIGS. 2 and 4.
  • Lift rods 57 are connected to lift assemblies 56.
  • Each lift assembly comprises a removable locking pin 58 which connects two pivot blocks 62.
  • Each pivot block 62 is connected to a pivot block retainer 64 by a pivot block shaft 66.
  • Pivot block retainer members 64 are attached directly to plates 26.
  • lift assembly 56 it will be seen that lift rods 57 are pushed upwardly to bear against locking pins 58 and cause the lifting of pivot blocks 62.
  • Simultaneously shafts 66 rise, and allow the pivoting of, pivot block retainers 64 which are directly connected to plates 26. This movement is reversed on the downward movement of the lift rods and an alternating pressure action is achieved by the device.
  • the generally hoop-shaped leg compartments tend to withstand and dissipate stresses with substantially no change in their shape. This allows a more predictable control of the pressurizing cycle.
  • the vertical thrust necessary to operate the opening and closing of the leg compartments is largely dissipated through horizontal force vectors exerted on brackets 44 and 50a.
  • this force is largely counterbalanced by the tensile strength of base plate 14 and this factor contributes substantially to the dimensional stability of the apparatus in opposing vertical distortion during operation.
  • the liquid containing bladders are formed of a non-distensible material and fastened to the leg unit shell members to minimize any lateral movement of the bladders along the leg.
  • an external circulatory assist apparatus comprising a liquid-containing bladder means adapted to be positioned around a patients limbs within a limb housing, the improvement wherein said housing comprises two limb-holding chambers, each said chamber comprising an upper shell portion and a lower shell portion and each said chamber adapted to be approximately coextensive with the limb enclosed therein, means for alternately moving said upper shells with respect to said lower shells to simultaneously increase and decrease the pressure exerted on said liquid containing bladder means in each chamber.
  • said mechanical means comprises a hydraulic piston adapted to drive two spaced, vertically reciprocating lift rods into contact with said mechanical means, said lift rods being driven by driving means so mounted as to dissipate the opposing forces thereof as tensile forces normal to the direction of lift and along a base plate on which said mechanical means is mounted.

Abstract

Novel external pressure circulatory assist apparatus utilizing movement of a shell portion of a limb-enclosing housing as a mechanical means for applying the requisite cyclic pressure to the limbs of a patient being treated.

Description

[ Jan. 8, 1974 United States Patent 1191 Sauer et al.
[56] References Cited UNITED STATES PATENTS NOVEL EXTERNAL CIRCULATORY ASSIST DEVICE [75] Inventors: Harold S. Sauer, Carlisle; Nubar D.
3,303,841 2/1967 128/24 R 3,403,673 10/1968 128/64 UX 3,654,919 4/1972 128/64 Hagopian, Waltham; John M. Colman, Lexington, all of Mass. [73] Assignee: Medical Innovations, Inc
" waltham Primary ExaminerLawrence W. Trapp Attorney-Robert A. Cesari et a].
Mass.
[22] Filed: Oct. 13, 1972 [57] ABSTRACT Novel external pressure circulatory assist apparatus utilizing movement of a shell portion of a limbenclosing housing as a mechanical means for applying the requisite cyclic pressure to the limbs of a patient being treated.
21 Appl. No.: 297,250
52 us. c1. R, 128/64 511 Int.A61h 1/00 581 Field of 128/24 R, 64, 25 R,
6 Claims, 4 Drawing Figures PATENTEU JAN 74 SHEET 1 BF 2 NOVEL EXTERNAL CIRCULATORY ASSIST DEVICE BACKGROUND OF THE INVENTION This invention relates to apparatus for assisting blood circulation by applying external pressure to the body. Such processes are generally known and are disclosed in, for example, U.S. Pat. No. 3,303,841 to Dennis and U.S. Pat. No. 3,654,919 to Birtwell.
As indicated in the Birtwell patent, the prior art devices usually achieved pressure by having liquid pressure cycled by a pump means attached to a liquid reservoir surrounding the legs of a patient being treated. More recently, apparatus has been developed whereby a mechanical platen rises and falls while in contact with a constrained leg-enclosing, reservoir, thereby causing the pressure in the reservoir to cycle. This older apparatus is highly satisfactory in some circumstances but, as the therapeutic value of external assist'apparatus becomes more apparent for various types of therapy the known apparatus has been found to be heavier. than is convenient for handling and portability.
SUMMARY OF THE INVENTION Therefor it is an object of the invention to provide a lightweight limb-housing unit for use in external circulatory assist processes.
Another object of the invention is to provide a means to achieve the simultaneous and synchronous action of two leg units with a minimum of mechanical apparatus.
A further object of the invention is to utilize necessary superstructure of an external circulatory assist apparatus to serve the dual function of housing and pressurizing a liquid bladder.
Another object of the invention is to provide a pressurizing means having sufficient displacement capacity to provide suitable treatment for patients with a wide variety of limb sizes and without having to change water capacity of the pressurized, liquid-containing bladder wrapped about the limbs.
Other objects of the invention will be obvious to those skilled in the art on reading this application.
The above objects have been substantially achieved by using leg housing members as the means byvwhich mechanical pressure is applied to liquid-filled blankets wrapped about the legs.
ILLUSTRATIVE EMBODIMENT OF THE INVENTION In this application and accompanying drawings there is shown and described a preferred embodiment of the invention and suggested various alternatives and modifications thereof, but it is to be understood that these are not intended to be exhaustive and that other changes and modifications can be made within the scope of the invention. These suggestions are selected and included for purposes of illustration in order that others skilled in the art will more fully understand the invention and the principles thereof and will be able to modify it in a variety of forms, each as may be best suited in the condition of a particular case.
IN THE DRAWINGS FIG. 1 is a view of a patient positioned for treatment in the apparatus of the invention.
F IG. 2 is a view similar to FIG. 1 excepting the apparatus is shown in'an open position, i.e., a position wherein a relatively low pressure or no pressure is exerted by the housing apparatus on the legs of the patient.
FIG. 3 is an elevation of the actuating mechanism with the housing in the FIG. 1 position.
FIG. 4 is an elevation of the actuating mechanism with the housing in the open, i.e., the FIG. 2, position. Referring to FIG. 1, it is seen that a patient is placed with his legs, from upper thigh to ankles, in an external pressure circulatory assist apparatus 10. Apparatus 10 is placed on a table 12 and comprises a base plate 14 on which is mounted leghousing 16 comprising two leg-holding chambers 18. Each chamber 18 consists of an upper shell 20 and a lower shell 22. Lower shells 22 are fixed to base plate 14. Upper shells 20, however, are pivotally mounted onto the outer sides of shells 22 by quick-connecting fastening means 24. The upper shell and lower shell are approximately coextensive with the legs of the patient.
FIGS. 3 and 4 show the means by which the. pivotallymounted shells 20 are moved.
Upper shells 20 are attached to generally triangular plates 26 which extend inwardly from the patients limbs. Triangular plates 26, when in the downward position shown in FIG. 3, act as lever means for applying pressure to bladders 28 which encircle the legs of the patient. Plates 26 are integral with upper shells 20 and, as a consequence, pivot on the pin members 30 of quick-connecting fastening means 32. Pin members 30 are mounted on brackets 34 and fastened to lower shells 22. The-pins extend laterally into receptacles in brackets 36 which are mounted on upper shells 20.
Lower shells 22 are rigidly positioned on base plate 12 and connected to one another by lower bracing plates 38 which extend between the two lower shells.
Referring to FIGS. 4 and 5, it is seen that base plate 14 carries mechanical actuator means 40 operably connected to pivot plates 26 upwardly and downwardly in response to the action of a hydraulic cylinder 42. Hydraulic cylinder 42 is mounted on base plate 14 by means of mounting bracket 44. A piston 46 is connected to the cylinder, thence to two bell- cranks 48 and 48a, mounted on brackets 50 and 50a respectively, through operating rods 52 and 54. When the bellcranks are rotated clockwise by a leftward movement of piston 46, they cause the downward movement of lift rods 57 and, consequently, the downward movement of plates 26 until they assume the position illustrated in FIGS. I and 3. Conversely, when bellcranks 48 and 48a are rotated clockwise by a rightward movement of piston 46, they cause the simultaneous upward movement of lift rods 57 and the upward movement of plates 26 to assume the positionillustrated in FIGS. 2 and 4.
Lift rods 57 are connected to lift assemblies 56. Each lift assembly comprises a removable locking pin 58 which connects two pivot blocks 62. Each pivot block 62 is connected to a pivot block retainer 64 by a pivot block shaft 66. Pivot block retainer members 64 are attached directly to plates 26. In operation of lift assembly 56, it will be seen that lift rods 57 are pushed upwardly to bear against locking pins 58 and cause the lifting of pivot blocks 62. Simultaneously shafts 66 rise, and allow the pivoting of, pivot block retainers 64 which are directly connected to plates 26. This movement is reversed on the downward movement of the lift rods and an alternating pressure action is achieved by the device. In this action the generally hoop-shaped leg compartments tend to withstand and dissipate stresses with substantially no change in their shape. This allows a more predictable control of the pressurizing cycle. Moreover, the vertical thrust necessary to operate the opening and closing of the leg compartments is largely dissipated through horizontal force vectors exerted on brackets 44 and 50a. Thus this force is largely counterbalanced by the tensile strength of base plate 14 and this factor contributes substantially to the dimensional stability of the apparatus in opposing vertical distortion during operation.
The liquid containing bladders, as is known in the art, are formed of a non-distensible material and fastened to the leg unit shell members to minimize any lateral movement of the bladders along the leg.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which might be said to fall therebetween.
What is claimed is:
1. in an external circulatory assist apparatus comprising a liquid-containing bladder means adapted to be positioned around a patients limbs within a limb housing, the improvement wherein said housing comprises two limb-holding chambers, each said chamber comprising an upper shell portion and a lower shell portion and each said chamber adapted to be approximately coextensive with the limb enclosed therein, means for alternately moving said upper shells with respect to said lower shells to simultaneously increase and decrease the pressure exerted on said liquid containing bladder means in each chamber.
2. Apparatus as defined in claim 1 wherein said upper shells and lower shells are hinged together along the outer edges thereof, wherein said lower shells are stationary and each said upper shell is attached to a mechanical lift means to alternately push and pull said upper shells into compressing and decompressing relationship to said bladder means.
3. Apparatus as defined in claim 2 wherein said mechanical means comprises a hydraulic piston adapted to drive two spaced, vertically reciprocating lift rods into contact with said mechanical means, said lift rods being driven by driving means so mounted as to dissipate the opposing forces thereof as tensile forces normal to the direction of lift and along a base plate on which said mechanical means is mounted.
4. Apparatus as defined in claim 1 wherein said bladder means is fully enclosed and comprises no operable connection with an exterior source of liquid.
5. Apparatus as defined in claim 2 wherein said bladder means is fully enclosed and comprises no operable connection with an exterior source of liquid.
6. Apparatus as defined in claim 3 wherein said bladder means is fully enclosed and comprises no operable connection with an exterior source of liquid.

Claims (6)

1. In an external circulatory assist apparatus comprising a liquid-containing bladder means adapted to be positioned around a patient''s limbs within a limb housing, the improvement wherein said housing comprises two limb-holding chambers, each said chamber comprising an upper shell portion and a lower shell portion and each said chamber adapted to be approximately coextensive with the limb enclosed therein, means for alternately moving said upper shells with respect to said lower shells to simultaneously increase and decrease the pressure exerted on said liquid containing bladder means in each chamber.
2. Apparatus as defined in claim 1 wherein said upper shells and lower shells are hinged together along the outer edges thereof, wherein said lower shells are stationary and each said upper shell is attached to a mechanical lift means to alternately push and pull said upper shells into compressing and decompressing relationship to said bladder means.
3. Apparatus as defined in claim 2 wherein said mechanical means comprises a hydraulic piston adapted to drive two spaced, vertically reciprocating lift rods into contact with said mechanical means, said lift rods being driven by driving means so mounted as to dissipate the opposing forces thereof as tensile forces normal to the direction of lift and along a base plate on which said mechanical means is mounted.
4. Apparatus as defined in claim 1 wherein said bladder means is fully enclosed and comprises no operable connection with an exterior source of liquid.
5. Apparatus as defined in claim 2 wherein said bladder means is fully enclosed and comprises no operable connection with an exterior source of liquid.
6. Apparatus as defined in claim 3 wherein said bladder means is fully enclosed and comprises no operable connection with an exterior source of liquid.
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865102A (en) * 1973-06-13 1975-02-11 Hemodyne Inc External cardiac assist apparatus
DE2937360A1 (en) * 1979-09-15 1981-04-02 Dietrich 2100 Hamburg Schmidt Massage instrument for circulation trouble - comprises two hollow cylindrical components sealed by sleeves to human limbs
US4738249A (en) * 1985-03-01 1988-04-19 The Procter & Gamble Company Method and apparatus for augmenting blood circulation
US5027797A (en) * 1989-10-12 1991-07-02 Horace Bullard Apparatus for the movement of blood by external pressure
US5762618A (en) * 1995-06-14 1998-06-09 Kabushiki Kaisha Fuji Iryoki Chair-type air massage device
US5792082A (en) * 1995-06-14 1998-08-11 Kabushiki Kaisha Fuji Iryoki Chair-type air massage device
US20020107461A1 (en) * 2000-11-10 2002-08-08 Hui John C.K. High efficiency external counterpulsation apparatus and method for controlling same
US20030009119A1 (en) * 2001-03-23 2003-01-09 Kamm Roger D. Method and apparatus for stimulating angiogenesis and wound healing by use of external compression
US6572621B1 (en) 1992-05-07 2003-06-03 Vasomedical, Inc. High efficiency external counterpulsation apparatus and method for controlling same
US6620116B2 (en) 2000-12-08 2003-09-16 Michael P. Lewis External counterpulsation unit
US20030233118A1 (en) * 2002-06-13 2003-12-18 Hui John C. K. Method for treating congestive heart failure using external counterpulsation
US20050070755A1 (en) * 1993-05-06 2005-03-31 Zhensheng Zheng High efficiency external counterpulsation method
US20060058715A1 (en) * 2004-09-14 2006-03-16 Hui John C External counterpulsation device with multiple processors
US7048702B2 (en) 2002-06-13 2006-05-23 Vasomedical, Inc. External counterpulsation and method for minimizing end diastolic pressure
US20070272250A1 (en) * 2006-05-24 2007-11-29 Michael Paul Lewis External pulsation treatment apparatus
US20090177130A1 (en) * 2007-12-07 2009-07-09 Wegher-Thompson Seth M Deep pressure methods, apparatus and systems for autism therapy and other therapies

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3303841A (en) * 1964-06-18 1967-02-14 Dennis Clarence Process and apparatus for pressurizing lower extremities of a patient during ventricular diastole
US3403673A (en) * 1965-07-14 1968-10-01 Welton Whann R Means and method for stimulating arterial and venous blood flow
US3654919A (en) * 1970-11-25 1972-04-11 Medical Innovations Inc Process and apparatus for synchronous assisting of blood circulation

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Cited By (24)

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US3865102A (en) * 1973-06-13 1975-02-11 Hemodyne Inc External cardiac assist apparatus
DE2937360A1 (en) * 1979-09-15 1981-04-02 Dietrich 2100 Hamburg Schmidt Massage instrument for circulation trouble - comprises two hollow cylindrical components sealed by sleeves to human limbs
US4738249A (en) * 1985-03-01 1988-04-19 The Procter & Gamble Company Method and apparatus for augmenting blood circulation
WO1992019206A1 (en) * 1989-10-12 1992-11-12 Horace Bullard Apparatus and method for movement of blood
US5027797A (en) * 1989-10-12 1991-07-02 Horace Bullard Apparatus for the movement of blood by external pressure
US6572621B1 (en) 1992-05-07 2003-06-03 Vasomedical, Inc. High efficiency external counterpulsation apparatus and method for controlling same
US20050070755A1 (en) * 1993-05-06 2005-03-31 Zhensheng Zheng High efficiency external counterpulsation method
US5762618A (en) * 1995-06-14 1998-06-09 Kabushiki Kaisha Fuji Iryoki Chair-type air massage device
US5792082A (en) * 1995-06-14 1998-08-11 Kabushiki Kaisha Fuji Iryoki Chair-type air massage device
US7314478B2 (en) 2000-11-10 2008-01-01 Vasomedical, Inc. High efficiency external counterpulsation apparatus and method for controlling same
US20020107461A1 (en) * 2000-11-10 2002-08-08 Hui John C.K. High efficiency external counterpulsation apparatus and method for controlling same
US6589267B1 (en) 2000-11-10 2003-07-08 Vasomedical, Inc. High efficiency external counterpulsation apparatus and method for controlling same
US20050131456A1 (en) * 2000-11-10 2005-06-16 Hui John C.K. High efficiency external counterpulsation apparatus and method for controlling same
US6962599B2 (en) 2000-11-10 2005-11-08 Vasomedical, Inc. High efficiency external counterpulsation apparatus and method for controlling same
US6620116B2 (en) 2000-12-08 2003-09-16 Michael P. Lewis External counterpulsation unit
US20030009119A1 (en) * 2001-03-23 2003-01-09 Kamm Roger D. Method and apparatus for stimulating angiogenesis and wound healing by use of external compression
US20030233118A1 (en) * 2002-06-13 2003-12-18 Hui John C. K. Method for treating congestive heart failure using external counterpulsation
US7048702B2 (en) 2002-06-13 2006-05-23 Vasomedical, Inc. External counterpulsation and method for minimizing end diastolic pressure
US20060058717A1 (en) * 2004-09-14 2006-03-16 Hui John C K External counterpulsation device having a curvilinear bed
US20060058716A1 (en) * 2004-09-14 2006-03-16 Hui John C K Unitary external counterpulsation device
US20060058715A1 (en) * 2004-09-14 2006-03-16 Hui John C External counterpulsation device with multiple processors
US20070272250A1 (en) * 2006-05-24 2007-11-29 Michael Paul Lewis External pulsation treatment apparatus
US7981066B2 (en) 2006-05-24 2011-07-19 Michael Paul Lewis External pulsation treatment apparatus
US20090177130A1 (en) * 2007-12-07 2009-07-09 Wegher-Thompson Seth M Deep pressure methods, apparatus and systems for autism therapy and other therapies

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