US3438067A - Hospital beds - Google Patents

Hospital beds Download PDF

Info

Publication number
US3438067A
US3438067A US634258A US3438067DA US3438067A US 3438067 A US3438067 A US 3438067A US 634258 A US634258 A US 634258A US 3438067D A US3438067D A US 3438067DA US 3438067 A US3438067 A US 3438067A
Authority
US
United States
Prior art keywords
frames
webs
side rail
bed
patient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US634258A
Inventor
Barbara Joan Saunders
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3438067A publication Critical patent/US3438067A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013Lifting of patients by
    • A61G7/1015Cables, chains or cords
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C21/00Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/104Devices carried or supported by
    • A61G7/1046Mobile bases, e.g. having wheels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049Attachment, suspending or supporting means for patients
    • A61G7/1055Suspended platforms, frames or sheets for patient in lying position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1073Parts, details or accessories
    • A61G7/108Weighing means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00Information related to the kind of patient or his position
    • A61G2200/30Specific positions of the patient
    • A61G2200/32Specific positions of the patient lying

Definitions

  • [3 United States Patent 3,438,067 HOSPITAL BEDS Barbara Joan Saunders, Mill House, Cricket Hill, Yateley,
  • the invention accordingly consists in a hospital bed having vertically movable side rail frames, which are interconnected by horizontally spaced webs intended to overlie the bed mattress for supporting the patient and power operated means for raising and lowering the side frames and the webs between lowered, raised and intermediate positions.
  • the power operated means is controllable by the patient or a member of the hospital staff. In this way more seriously ill patients are enabled to be lifted from and lowered back onto the mattress under their own or outside control. It will be appreciated that this facility considerably simplifies bed making, and the handling of bed pans and other hosptial and nursing equipment.
  • two fiat webs made of material such as nylon, are employed, the centre of one web being about 8" above the patients excretory organs towards the head while the centre of the other web is the same distance below the excretory organs towards the feet.
  • the webs may be about .01 thick and about 6" wide leaving a space of about between their adjacent edges.
  • the available vertical motion of the side rail frames is about 17 and the tension in the webs is such that this will sufiice to lift the patients buttocks about 6" clear of the mattress when the frames are fully raised.
  • the nurse, or the patient himself if he is well enough can insert a bed pan. Since the patients weight is not borne by the pan, the latter can be of lightweight construction and could be made of disposable material. It should preferably be detachably secured, as by means of a hook or the like, to the side rail accessible to the patient.
  • two additional webs are provided, namely a narrow one below the ankles and a wide one under his head. Where a patient cannot be rolled over in a bed this constitutes in addition a medical advantage.
  • a safety coupling may be incorporated between the power operated means and the side frames to obviate the possibility 3,438,067 Patented Apr. 15, 1969 of a patients limb becoming trapped when the side frames move downwardly below mattress level.
  • means may be provided for weighing the patient whilst suspended upon the webs. This is a particular convenience in cases where it can be vital to detect an increase or decrease in weight of a patient who is too ill to be moved.
  • the side rail frames are raised and lowered under the control of suspension chains or cables the weighing means may be actuated by a member which is movable in response to load variations of the drive from an electric motor to drums on which the suspension chains or cables are wound.
  • FIGURE 1 is a general view of a stripped hospital bed with certain components schematically shown;
  • FIGURE 2 is an end elevation of half of an end frame assembly
  • FIGURE 3 is a transverse section through an end frame assembly as shown in FIGURE 2;
  • FIGURE 4 is a diagrammatic view showing two of three alternative side rail positions
  • FIGURE 5 is a diagrammatic view showing the third (raised) alternative position of the side rails and a patient supported by the webs;
  • FIGURE 6 shows a drive transmission in vertical section
  • FIGURE 8 shows a switch control gear
  • FIGURE 1 shows a simplified form of such a bed having in particular a spring and mattress supporting rectangular base frame 1, a pair of end frames 2 mounted on castors and vertically movable side frames 3.
  • Each such end frame assembly principally comprises an inverted U-shaped channel section element 5 having upper and lower slotted lugs 6, 7 respectively which engaged upon the adjacent end frame 2 or projections thereon.
  • Each element 5 at each upper corner houses a pair of parallel rotatable sheaves 8, and a similar sheave 9 is similarly mounted at the bottom of each limb of each element 5.
  • each end frame assembly support between them' a pair of steel wire cables 10, 10a which are anchored at one end to winch drums 11, 12 respectively and cross one another at the top of the element 5.
  • winch drums 11, 12 respectively and cross one another at the top of the element 5.
  • the drive shafts would of course be supported in suitable bearings (not shown).
  • each cable 10, 10a is attached to a side frame lifting or control Weight 14 which, as shown most clearly in FIGURES 1 and 3, is engageable with the notched end of a side frame top rail 15 for the purpose of raising and controlling the lowering of the side frame.
  • each side frame has a fixed pair of vertical bars 16 at the head end of the bed and 3 two vertical 'bar assemblies 17 which are adjustably mounted for horizontal movement along the side frame.
  • each pair of fixed bars 16 and with each vertical bar assembly 17 is a web suspension linkage comprising a pair of rollers 18 engaging the bars and carried on a suspension plate 19.
  • the suspension plate has perforated side lugs at its inward end which serve to receive a detachable pin 20 which extends through the looped end of a nylon web 21 having the characteristics already mentioned.
  • the horizontal adjustability of the vertical bar assemblies enables the associated webs to be located as required beneath patients of different size. Normally these webs will support the patients buttocks and ankles.
  • the side frames 3 and the associated webs 21 are movable between three alternative positions as illustrated in FIGURES 4 and 5.
  • FIGURE 4 shows the lowered position permitting entry and exit from the bed by the patient.
  • the side frames have dropped by gravity under the control of the weights 14 and since the webs 21 are short and rest upon the bed mattress 22 the latter constrains the suspension linkages to ride up the side rail bars.
  • FIGURE 4 shows the intermediate position wherein as a result of raising the weights 14 the side frames have been lifted to an intermediate or guard position in which the bottom side frame rail 23 is level with the bottom of the mattress, the webs 21 continuing to rest upon the latter. It should be noticed that the suspension linkage rollers now engage the bottom side frame rail 23.
  • FIGURE 5 shows the raised position of the side frames and the associated components wherein the webs 21 with a patient supported thereon have been raised a distance of the order of 6 inches.
  • FIGURES 6 and 7 illustrate the mode of transmitting a power drive from an electric motor 24 (FIGURE 6) to the winch drums 11, 12 (FIGURE 7).
  • the motor driving shaft carries a pinion 25 engaging a gear 26 on a shaft 27 to drive a worm 28 at reduced speed.
  • the worm 28 drives a worm gear 29 which dips into an oil sump in the gear casing 30 and is keyed to the winch drum shaft 13.
  • the gear casing 30 has a separate compartment which houses a reduction gear comprising a pinion 31 on shaft 13 and a gear wheel 32.
  • the gear ratio is such that gearwheel 32 turns through 280 between extreme rotational positions of the drum shaft 13.
  • the gearwheel 32 has on one face a pair of pins 33 spaced at a 180 interval for the purpose of operating at the ends of its angular travel one or other of a pair of microswitches 34 which are effective to switch off the electric motor 24.
  • the electric motor is fitted with a reversing switch accessible to a nurse and a patient and will normally run in an up or down direction when switched on until the microswitches (limit switches) 34 are engaged.
  • the side rail frames may be arrested in the intermediate or guard position, which may need to be adjusted from time to time, by manually operating a motor control switch at an appropriate moment.
  • a motor control switch Preferably however, provision is made for automatically switching off the motor when the ascending or descending side frames are at a preselected level.
  • This can readily be done by selective operation of a third microswitch which can be operated by a pin adjustably located in a member which turns slowly in synchronism with the winch drum shaft. It should be apparent to persons skilled in the art that many other devices could be used for stopping the side rail frames at different levels when required as an alternative to allowing a full rise or fall of the side rail frames.
  • FIGURE 6 there is shown at the left of the casing 30 an hydraulic fluid cylinder 35 connected by a pipe 36 to a pressure sensitive gauge (not shown) calibrated in units of Weight.
  • the left end of the worm shaft 27 engages an end face of a plunger (not shown) Lil in the cylinder 35.
  • a plunger (not shown) Lil in the cylinder 35.
  • rollers may be fitted to the ends of the side rail frames to prevent the possibility of accidental jamming. Means will normally be provided for adjusting the length of the wire cables.
  • a hospital bed comprising a horizontal base frame containing a mattress; a pair of end frames and a pair of side rail frames vertically movable between said end frames; a plurality of horizontally spaced webs interconnecting said side rail frames for supporting a patient from the mattress; and mechanical means for raising and lowering the side rail frames and the webs between a lowered, a raised and an intermediate position.
  • a hospital bed comprising a horizontal base frame containing a mattress; a pair of end frames and a pair of side rail frames vertically movable between said end frames; a plurality of horizontally spaced webs interconnecting said side rail frames for supporting a patient independent of said mattress; cables associated with said end frames; and mechanical means for actuating said cables for raising and lowering said side rail frames and said webs between lowered, raised and intermediate positions.
  • a hospital bed as claimed in claim 1 in which said side rail frames have vertical bars and said spaced webs are attached to suspension means movable along said vertical bars.
  • a hospital bed as claimed in claim 1 in which said side rail frames each have at least one horizontally adjustable vertical bar assembly and suspension means by which an end of a web is coupled thereto.
  • a hospital bed as claimed in claim 1 in which said mechanical means is power operated and driven by an electric motor and includes control gear for automatically stopping the motor when said predetermined raised, lowered or intermediate position of said side rail frames is reached.
  • a hospital bed as claimed in claim 1 including a safety coupling between the raising and lowering mechanical means and the side rail frames.
  • a hospital bed as claimed in claim 2 in which said cables terminate in weights which are engageable with said side rail frames for lifting and controlling the lowering of said rail frames.
  • a hospital bed as claimed in claim 2 which further comprises power operated winches for winding said cables to raise and lower said side rail frames, said winches are carried on a shaft extending beneath the base frame and constitutes an output shaft of a reduction gearbox driven by an electric motor.
  • a hospital bed as claimed in claim 10 in which the operation of said electric motor is controlled by a switch gear actuated by presettable means in said reduc tion gear box.

Description

April 1969 B. J. SAUNDERS 3,438,067
HOSPITAL BEDS Filed April 27, 1967 Sheet of 4 April 1969 B. J. SAUNDERS 3,438,067
HOSPITAL BEDS Filed April 27, 1967 Sheet 3 of 4 F|G.2. FIG 3 April 15, 1969 B. .1. SAUNDERS 7 HOSPITAL BEDS Filed April 27, 1967 Sheet 3 of 4 L- FIGA.
April 15, 1969 B. J. SAUNDERS 3,438,067
HOSPITAL BEDS Filed April 27, 1967 Sheet 4 of 4 SHE-"- 35 FIG.6.
FIG-7.
FIG.8. i 3| [3 United States Patent 3,438,067 HOSPITAL BEDS Barbara Joan Saunders, Mill House, Cricket Hill, Yateley,
near Camherley, Surrey, England Filed Apr. 27, 1967, Ser. No. 634,258 Claims priority, application Great Britain, May 3, 1966, 19,388/66; July 8, 1966, 30,723/66 Int. Cl. A61g 7/10; A47c 31/00 US. Cl. -68 12 Claims ABSTRACT OF THE DISCLOSURE This invention is a hospital bed which has been devised with the object of saving the time and labour of hospital staff by permitting certain movements and tasks to be performed by the patient himself without calling for assistance.
The invention accordingly consists in a hospital bed having vertically movable side rail frames, which are interconnected by horizontally spaced webs intended to overlie the bed mattress for supporting the patient and power operated means for raising and lowering the side frames and the webs between lowered, raised and intermediate positions.
Preferably the power operated means is controllable by the patient or a member of the hospital staff. In this way more seriously ill patients are enabled to be lifted from and lowered back onto the mattress under their own or outside control. It will be appreciated that this facility considerably simplifies bed making, and the handling of bed pans and other hosptial and nursing equipment.
When the lower part of the torso only is to be raised and lowered two fiat webs, made of material such as nylon, are employed, the centre of one web being about 8" above the patients excretory organs towards the head while the centre of the other web is the same distance below the excretory organs towards the feet. The webs may be about .01 thick and about 6" wide leaving a space of about between their adjacent edges. The available vertical motion of the side rail frames is about 17 and the tension in the webs is such that this will sufiice to lift the patients buttocks about 6" clear of the mattress when the frames are fully raised. In this position the nurse, or the patient himself if he is well enough, can insert a bed pan. Since the patients weight is not borne by the pan, the latter can be of lightweight construction and could be made of disposable material. It should preferably be detachably secured, as by means of a hook or the like, to the side rail accessible to the patient.
To permit raising of the whole of the patients body from the mattress, e.g. for bed-making, two additional webs are provided, namely a narrow one below the ankles and a wide one under his head. Where a patient cannot be rolled over in a bed this constitutes in addition a medical advantage.
According to a further feature of the invention a safety coupling may be incorporated between the power operated means and the side frames to obviate the possibility 3,438,067 Patented Apr. 15, 1969 of a patients limb becoming trapped when the side frames move downwardly below mattress level. Also according to another feature of the invention means may be provided for weighing the patient whilst suspended upon the webs. This is a particular convenience in cases where it can be vital to detect an increase or decrease in weight of a patient who is too ill to be moved. Where, as is convenient, the side rail frames are raised and lowered under the control of suspension chains or cables the weighing means may be actuated by a member which is movable in response to load variations of the drive from an electric motor to drums on which the suspension chains or cables are wound.
One particular and at present preferred embodiment of the invention is illustrated in the accompanying drawings in which:
FIGURE 1 is a general view of a stripped hospital bed with certain components schematically shown;
FIGURE 2 is an end elevation of half of an end frame assembly;
FIGURE 3 is a transverse section through an end frame assembly as shown in FIGURE 2;
FIGURE 4 is a diagrammatic view showing two of three alternative side rail positions;
FIGURE 5 is a diagrammatic view showing the third (raised) alternative position of the side rails and a patient supported by the webs;
FIGURE 6 shows a drive transmission in vertical section;
FIGURE 7 is a section on line VII-VII of FIGURE 6; and
FIGURE 8 shows a switch control gear.
In general the drawings show the invention as it could be incorporated in a generally conventional form of hospital bed such as that for instance disclosed in US. patent specification No. 3,081,463 and which is power operated for adjusting the height and angular position of the rectangular horizontal base of the bed frame. Power operation is by means of a motor located beneath the base frame.
FIGURE 1 shows a simplified form of such a bed having in particular a spring and mattress supporting rectangular base frame 1, a pair of end frames 2 mounted on castors and vertically movable side frames 3.
As shown in FIGURES l, 2 and 3 there is clamped upon each end frame 2 an end frame assembly 4. Each such end frame assembly principally comprises an inverted U-shaped channel section element 5 having upper and lower slotted lugs 6, 7 respectively which engaged upon the adjacent end frame 2 or projections thereon. Each element 5 at each upper corner houses a pair of parallel rotatable sheaves 8, and a similar sheave 9 is similarly mounted at the bottom of each limb of each element 5.
The sheaves of each end frame assembly support between them' a pair of steel wire cables 10, 10a which are anchored at one end to winch drums 11, 12 respectively and cross one another at the top of the element 5. There is a pair of such drums at each end of the bed below the base frame 1 and keyed to drive shafts 13. The drive shafts would of course be supported in suitable bearings (not shown).
The opposite non-anchored end of each cable 10, 10a is attached to a side frame lifting or control Weight 14 which, as shown most clearly in FIGURES 1 and 3, is engageable with the notched end of a side frame top rail 15 for the purpose of raising and controlling the lowering of the side frame.
As shown in FIGURE 1 each side frame has a fixed pair of vertical bars 16 at the head end of the bed and 3 two vertical 'bar assemblies 17 which are adjustably mounted for horizontal movement along the side frame.
Associated with each pair of fixed bars 16 and with each vertical bar assembly 17 is a web suspension linkage comprising a pair of rollers 18 engaging the bars and carried on a suspension plate 19. The suspension plate has perforated side lugs at its inward end which serve to receive a detachable pin 20 which extends through the looped end of a nylon web 21 having the characteristics already mentioned. The horizontal adjustability of the vertical bar assemblies enables the associated webs to be located as required beneath patients of different size. Normally these webs will support the patients buttocks and ankles.
The side frames 3 and the associated webs 21 are movable between three alternative positions as illustrated in FIGURES 4 and 5.
The left side of FIGURE 4 shows the lowered position permitting entry and exit from the bed by the patient. The side frames have dropped by gravity under the control of the weights 14 and since the webs 21 are short and rest upon the bed mattress 22 the latter constrains the suspension linkages to ride up the side rail bars.
The right side of FIGURE 4 shows the intermediate position wherein as a result of raising the weights 14 the side frames have been lifted to an intermediate or guard position in which the bottom side frame rail 23 is level with the bottom of the mattress, the webs 21 continuing to rest upon the latter. It should be noticed that the suspension linkage rollers now engage the bottom side frame rail 23.
FIGURE 5 shows the raised position of the side frames and the associated components wherein the webs 21 with a patient supported thereon have been raised a distance of the order of 6 inches.
FIGURES 6 and 7 illustrate the mode of transmitting a power drive from an electric motor 24 (FIGURE 6) to the winch drums 11, 12 (FIGURE 7). The motor driving shaft carries a pinion 25 engaging a gear 26 on a shaft 27 to drive a worm 28 at reduced speed. The worm 28 drives a worm gear 29 which dips into an oil sump in the gear casing 30 and is keyed to the winch drum shaft 13.
The gear casing 30 has a separate compartment which houses a reduction gear comprising a pinion 31 on shaft 13 and a gear wheel 32. The gear ratio is such that gearwheel 32 turns through 280 between extreme rotational positions of the drum shaft 13.
The gearwheel 32 has on one face a pair of pins 33 spaced at a 180 interval for the purpose of operating at the ends of its angular travel one or other of a pair of microswitches 34 which are effective to switch off the electric motor 24.
The electric motor is fitted with a reversing switch accessible to a nurse and a patient and will normally run in an up or down direction when switched on until the microswitches (limit switches) 34 are engaged.
The side rail frames may be arrested in the intermediate or guard position, which may need to be adjusted from time to time, by manually operating a motor control switch at an appropriate moment. Preferably however, provision is made for automatically switching off the motor when the ascending or descending side frames are at a preselected level. This can readily be done by selective operation of a third microswitch which can be operated by a pin adjustably located in a member which turns slowly in synchronism with the winch drum shaft. It should be apparent to persons skilled in the art that many other devices could be used for stopping the side rail frames at different levels when required as an alternative to allowing a full rise or fall of the side rail frames.
Referring now to FIGURE 6 there is shown at the left of the casing 30 an hydraulic fluid cylinder 35 connected by a pipe 36 to a pressure sensitive gauge (not shown) calibrated in units of Weight. The left end of the worm shaft 27 engages an end face of a plunger (not shown) Lil in the cylinder 35. There is some end float in the shaft 27 and in consequence when the motor drive transmission is operative in a lifting direction there arises a force tending to cause endwise displacement of the shaft 27 proportional to the loadthat is to say the weight of the patient. This displacement is transmitted to the plunger and the resultant hydraulic pressure rise is recorded in terms of weight on the gauge.
It should be appreciated that since there is no positive connection between the side rail frame and the wire cables or weights there is no possibility of a patient becoming seriously injured by trapping of a limb between the upper and/ or lower side rails when lowering occurs. If necessary, rollers may be fitted to the ends of the side rail frames to prevent the possibility of accidental jamming. Means will normally be provided for adjusting the length of the wire cables.
I claim:
1. A hospital bed comprising a horizontal base frame containing a mattress; a pair of end frames and a pair of side rail frames vertically movable between said end frames; a plurality of horizontally spaced webs interconnecting said side rail frames for supporting a patient from the mattress; and mechanical means for raising and lowering the side rail frames and the webs between a lowered, a raised and an intermediate position.
2. A hospital bed comprising a horizontal base frame containing a mattress; a pair of end frames and a pair of side rail frames vertically movable between said end frames; a plurality of horizontally spaced webs interconnecting said side rail frames for supporting a patient independent of said mattress; cables associated with said end frames; and mechanical means for actuating said cables for raising and lowering said side rail frames and said webs between lowered, raised and intermediate positions.
3. A hospital bed as claimed in claim 1 and having means operated in response to the load on said mechanical means when a patient is supported upon said webs for indicating that patients weight.
4. A hospital bed as claimed in claim 1 in which said side rail frames have vertical bars and said spaced webs are attached to suspension means movable along said vertical bars.
5. A hospital bed as claimed in claim 1 in which said side rail frames each have at least one horizontally adjustable vertical bar assembly and suspension means by which an end of a web is coupled thereto.
6. A hospital bed as claimed in claim 1 in which said mechanical means is power operated and driven by an electric motor and includes control gear for automatically stopping the motor when said predetermined raised, lowered or intermediate position of said side rail frames is reached.
7. A hospital bed as claimed in claim 1 including a safety coupling between the raising and lowering mechanical means and the side rail frames.
8. A hospital bed as claimed in claim 2 in which said end frames are of inverted U-shape channel section and said cables are contained within said channel.
9. A hospital bed as claimed in claim 2 in which said cables terminate in weights which are engageable with said side rail frames for lifting and controlling the lowering of said rail frames.
10. A hospital bed as claimed in claim 2 which further comprises power operated winches for winding said cables to raise and lower said side rail frames, said winches are carried on a shaft extending beneath the base frame and constitutes an output shaft of a reduction gearbox driven by an electric motor.
11. A hospital bed as claimed in claim 10 in which the operation of said electric motor is controlled by a switch gear actuated by presettable means in said reduc tion gear box.
12. A hospital bed as claimed in claim 4 wherein said 5 6 suspension means tensions said webs downwardly across 2,655,667 10/1953 Burkert 561 said mattress in both the lowered and intermediate posi- 2,372,683 2/1959 R i h t t 1, 5 -63 tions of said side rail frame. 3,302,219 2/1967 Harris 5-81 X References Cited 5 CASMIR A. NUNBERG, Primaly Examiner. UNITED STATES PATENTS 962,380 6/1910 McMohan 5-84 CL 1,698,754 1/1929 Gadbois 5-83 5-11, 85, 331
2,504,324 4/1950 Goldstein 5--11X
US634258A 1966-05-03 1967-04-27 Hospital beds Expired - Lifetime US3438067A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB30723/66A GB1189993A (en) 1966-05-03 1966-05-03 Improvements in Hospital Beds
GB1938866 1966-05-03

Publications (1)

Publication Number Publication Date
US3438067A true US3438067A (en) 1969-04-15

Family

ID=10128531

Family Applications (1)

Application Number Title Priority Date Filing Date
US634258A Expired - Lifetime US3438067A (en) 1966-05-03 1967-04-27 Hospital beds

Country Status (2)

Country Link
US (1) US3438067A (en)
GB (1) GB1189993A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673620A (en) * 1969-02-28 1972-07-04 Saunders Barbara J Hydraulically-operated trolley for hospital beds
US4998939A (en) * 1988-09-28 1991-03-12 R & P Joint Venture Hospital bed with guard rail actuated safety apparatus
US6651281B1 (en) * 1999-05-04 2003-11-25 Donjac Pty. Ltd. Support assembly means
US20050055772A1 (en) * 2003-09-12 2005-03-17 Michael Maschke Patient bed
US20090265854A1 (en) * 2005-11-02 2009-10-29 Kenneth Lindsay Pagden Sanitary care bed for bedfast patients
US20100199429A1 (en) * 2007-07-08 2010-08-12 Bhaskar Vitthal Patwardhan Sliding back for fouler bed
CN103431673A (en) * 2013-08-02 2013-12-11 陆欢欢 Weighing bed
US8915549B2 (en) 2010-07-12 2014-12-23 Raphael Addiego Lifting apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2918550B2 (en) * 2021-01-18 2023-08-14 Hernandez Sanchez Angeles Maria MEDICAL CRANE FOR LIFTING A PATIENT IN HORIZONTAL POSITION

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US962380A (en) * 1909-11-06 1910-06-21 Eddie E Mcmahan Surgical attachment for cots or beds.
US1698754A (en) * 1924-02-20 1929-01-15 Gadbois Paul Invalid bed
US2504324A (en) * 1948-08-27 1950-04-18 Sylvia B Goldstein Crib with mattress frame and side panels simultaneously movable in opposite vertical directions
US2655667A (en) * 1946-07-01 1953-10-20 Hilde Saliger Winding patient lift and turning mechanism
US2872688A (en) * 1954-02-15 1959-02-10 Shampaine Company Hospital beds
US3302219A (en) * 1966-01-14 1967-02-07 Joe F Harris Hospital bed and lifting and turning device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US962380A (en) * 1909-11-06 1910-06-21 Eddie E Mcmahan Surgical attachment for cots or beds.
US1698754A (en) * 1924-02-20 1929-01-15 Gadbois Paul Invalid bed
US2655667A (en) * 1946-07-01 1953-10-20 Hilde Saliger Winding patient lift and turning mechanism
US2504324A (en) * 1948-08-27 1950-04-18 Sylvia B Goldstein Crib with mattress frame and side panels simultaneously movable in opposite vertical directions
US2872688A (en) * 1954-02-15 1959-02-10 Shampaine Company Hospital beds
US3302219A (en) * 1966-01-14 1967-02-07 Joe F Harris Hospital bed and lifting and turning device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673620A (en) * 1969-02-28 1972-07-04 Saunders Barbara J Hydraulically-operated trolley for hospital beds
US4998939A (en) * 1988-09-28 1991-03-12 R & P Joint Venture Hospital bed with guard rail actuated safety apparatus
US6651281B1 (en) * 1999-05-04 2003-11-25 Donjac Pty. Ltd. Support assembly means
US20050055772A1 (en) * 2003-09-12 2005-03-17 Michael Maschke Patient bed
US7013511B2 (en) * 2003-09-12 2006-03-21 Siemens Aktiengesellschaft Patient bed
US20090265854A1 (en) * 2005-11-02 2009-10-29 Kenneth Lindsay Pagden Sanitary care bed for bedfast patients
US20100199429A1 (en) * 2007-07-08 2010-08-12 Bhaskar Vitthal Patwardhan Sliding back for fouler bed
US8578530B2 (en) * 2007-07-08 2013-11-12 Precision Automation And Robotics India Ltd. Sliding back for fouler bed
US8915549B2 (en) 2010-07-12 2014-12-23 Raphael Addiego Lifting apparatus
CN103431673A (en) * 2013-08-02 2013-12-11 陆欢欢 Weighing bed

Also Published As

Publication number Publication date
GB1189993A (en) 1970-04-29

Similar Documents

Publication Publication Date Title
US4627119A (en) Apparatus to assist the disabled
US4654903A (en) Bedsore prevention device in an invalid bed arrangement
US4639955A (en) Device for moving a patient from his bed
US5809591A (en) Patient lift mechanism
US3438067A (en) Hospital beds
US4446587A (en) Patient positioning device
US5511256A (en) Patient lift mechanism
US4868937A (en) Therapeutic bed
SU824879A3 (en) Hoisting device for patients
US5058871A (en) Examination table assembly
EP0497811A1 (en) Bed
US841702A (en) Device for handling, lifting, or supporting invalids or the like.
US3793652A (en) Electrically non-conductive hospital bed
US3123224A (en) Apparatus for lifting and transporting invalids
KR101935232B1 (en) Bed for preventing fall
EP2197404A1 (en) Improved patient lifting apparatus
WO2011044204A1 (en) Personal lifting device
US20170000670A1 (en) Hospital bed with apparatus capable of automatically changing bed sheets without disturbing occupied person, also a method of preventing and relieving ulcers
US2680855A (en) Attachment for lifting invalids in and out of bathtubs
US3877089A (en) Invalid lift apparatus
CA1319338C (en) Invalid transfer lift
GB2130482A (en) A bed for a disabled patient
US3673620A (en) Hydraulically-operated trolley for hospital beds
US4086672A (en) Lifting device
US6098216A (en) Convertible patient transport apparatus and method of transporting a patient