Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0281—Stretchers with wheels having a steering device
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0206—Stretchers with wheels characterised by the number of supporting wheels if stretcher is extended
  • A61G1/0225—Stretchers with wheels characterised by the number of supporting wheels if stretcher is extended other configuration, e.g. odd number of wheels
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0231—Stretchers with wheels having only fixed wheels
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0237—Stretchers with wheels having at least one swivelling wheel, e.g. castors
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/025—Stretchers with wheels having auxiliary wheels, e.g. wheels not touching the ground in extended position
  • A61G1/0268—Stretchers with wheels having auxiliary wheels, e.g. wheels not touching the ground in extended position having deployable or retractable wheels
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0275—Stretchers with wheels having driven wheels, e.g. motorised
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0287—Stretchers with wheels having brakes, e.g. slowing down and/or holding
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/02—Stretchers with wheels
  • A61G1/0293—Stretchers with wheels stretcher supports with wheels, e.g. used for stretchers without wheels
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
  • A61G1/042—Suspension means
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G1/00—Stretchers
  • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
  • A61G1/048—Handles
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
  • A61G7/05—Parts, details or accessories of beds
  • A61G7/0507—Side-rails
  • A61G7/0519—Side-rails stowable, e.g. underneath mattress
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B33/00—Castors in general; Anti-clogging castors
  • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
  • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G2203/00—General characteristics of devices
  • A61G2203/30—General characteristics of devices characterised by sensor means
  • A61G2203/42—General characteristics of devices characterised by sensor means for inclination
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G2210/00—Devices for specific treatment or diagnosis
  • A61G2210/50—Devices for specific treatment or diagnosis for radiography

Definitions

• the present invention relates to a multifunctional rescue and transport robotic bed with ability of secure and rapid transport of patients outdoor and indoor, use in areas with untreated surface at the same time, and for rescuing people in crisis situations
• Some companies use additional beds removable driving electric blocs to drive the bed, or they use system of incorporation of electric drive as a friction driving wheel built between two classic support stretcher wheels which are then driven by this driving wheel, based on the transmission of driving force by friction gear.
• the bed is equipped with a system of side rail retraction, which mechanism eliminates the usual shear cross-sections of other mechanisms used while preventing access to the luggage compartment between the telescopic columns of chassis due to its arrangement under the loading area in the displaced position
• Multifunctional rescue and transport robotic bed with ability of secure and rapid transport of patients outdoor and indoor which consists of an omnidirectional mobile chassis, on which a bed is placed through firmly axially placed two telescopic columns; while the mobile chassis, which main part is a chassis frame, forming lateral and anteroposterior bumper zone; where in corners of the chassis in forks there are pivotal!y placed wheel units with unlimited turning radius enabling omnidirectional movement; where the wheel units with unlimited turning radius are further arranged in the chassis frame through suspension and damping elements; while the wheel unit with unlimited turning radius is placed in the corner forks of the chassis frame in the corner pins;
• control column which main part is a column frame arranged rotatably in the chassis frame flange, where the column frame is followed by a disengaging part of column placed in the guidance housings;
• main part of the bed is a bed frame in which corners there are holders attached in the front part and holders in the rear part, where the sides of the bed frame form runners, on which are double handles attached in the central zone, and which together support the loading area of the bed;
• the function is performed by a backrest in the front part.
• the main part of the transfer bed is the bed frame, in which bed castors are placed rotationally in forks in nearby corners; and the staffed pin is rigidly bound with it in its rear part underneath;
• a system of side rail retraction consisting of transversely extending guide side rails with guiding grooves in opposition for slidably deposition of a retractable side rail, where the main element is the retractable side rail frame, where the side rail is locked in the functional position;
• the function is performed by a backrest in the front part; while the mobile chassis, which main part is the chassis frame, forming simultaneously the lateral and anteroposterior bumper zone; the wheel units with unlimited turning radius enabling omnidirectional movement are placed in forks in the corners of the chassis frame, where the wheel units with unlimited turning radius are further arranged through suspension and damping elements in the chassis frame;
• control column which base part is the column frame mounted pivotally in the chassis frame flange, where the column frame is followed in the vertical part by disengaging part of column placed in the guiding housings;
• the interface comprises an interface board including guiding sagittal profiles having rest frames in the front part inside, and frame pockets are inside the guiding sagittal profiles in the rear part of the interface;
• the positioning locking joint is arranged so that it forms the arm fork, and where an arm eye is inserted concentrically in which a mounting groove is placed;
• a push pin is placed into the hole of formed articulated arrangement with molded radial pin using the mounting grooves of arm forks and the arm eye, where in the central cavity of the push pin is a joint spring leaning on a blind hole of arm fork on the opposite side, and at the same time dimensionaliy bound against rotation with the second eye of fork arm; while the radial peg of the push pin is locked against one of the two radial grooves;
• suspension and shock units through which the wheel units with unlimited turning radius are stored are spring absorbers
• the actuator is linear, while balancing springs are arranged in parallel with the actuator.
• handlebars and disengaging part of column are under the column covers while under the opening of the upper cover, and a display is its part, while the handlebars are equipped with a gripping handle with hand presence detection, electronic throttle and electronic brake, while part of the handlebar frame is a small holder on which a safety switch with large button is mounted.
• the horizontal wheels with a vertical axis are arranged at the corner forks of the chassis frame.
• the batteries are arranged in pockets of the chassis frame on the sides of the telescopic columns.
• a handlebar frame is pivotally placed forming the basis for embedded handlebars fixed by a clip; while in the handlebar frame in its central part a vertical handlebar bolt is firmly arranged, which lower part extends to molded recesses of the rotary absorber connected with the head in its upper part; while further the handlebar pin extending to the area of the head with its bottom edge is constricted in its lower part by a locking ring to ensure the interconnection with an angular sensor carried by a sensor holder; while a torsion spring is arranged concentrically in the central part of the handlebar pin and on its sides the push segments are placed also concentrically into which the ends of the torsion spring extend; where the push segments in the basic position of the handlebars lean on a quick pin, which is part of a horizontal flange, and further they lean on a nose as part of the handlebar frame; while part of the ring with flange firmly attached to the horizontal flange are the bumpers by which a contact with stops
• the blocking pin of vertical peg is used to block the positions the control column, arranged in the sliding housing with collar inserted in the flange extension, which is part of the chassis frame flange; while the blocking pin of vertical peg is pressed into the shape recess of the vertical peg through a pin spring leaning on the opposite side to the shoulder of the ballscrew placed in flange extension; while through its center an angled rod passes, which is via a rod coupling connected with a rod connected with a release handle through a swinging wheel of two coaxial pins.
• the central button connected with the push rod is arranged at the end of the carrying handle sltdably, while the return spring leaning on the stop ring on the opposite side is arranged in the central button.
• a pivota!iy arranged side rail handle on a through pin which return to the initial position is provided by a torsion spring of handle; while a movement of the collapsible side rail in the guiding grooves is enabled via a pair of fixed pins on the side rati frame and a pair of hollow bolts with shoulder placed firmly in the side rail frame; while in each of the hollow bo!t with shoulder a conical bolt with a double shoulder is arranged into the shaped recess of the guiding side rail, extruded by a fitted pin spring; while a cord with ending arranged in conical bolt shoulder with a double shoulder operates when unlatched, then the cord passes through the side rail frame, where it passes through the guiding pulley and it ends in the adjustable pulley in which it is attached by two set screws, where the adjustable pulley adjusts the backlash of the cord with ending and its blocking is done through a retaining screw; while after un
• the mobile multipurpose transfer bed for patients consist of the omnidirectional mobile chassis which is equipped with the omnidirectional wheel unit which is placed in corner forks of the chassis frame in corner pins through shock-absorbers with springs; while on each front and rear pair of the corner pegs there is placed a supporting girder of each pair of the shock-absorber with spring, leaning on the height-adjustable handles of the supporting girder which position is adjustable through a linear actuator placed between the chassis frame and the supporting girder, and the balancing springs are arranged in parallel with it.
• the loading area is on the chassis frame which consists of double runners attached in the central zone to double handles designed to handle the backrest in which the support arms are placed which together with the board with handle form the base of the backrest; while the second double handle is always used for gas springs balancing the backrest; while a lever with handle serving for locking the gas springs is arranged pivotally in the head parts of a piston assembly.
• the bed is equipped with a system of side rail retraction, which mechanism eliminates the usual shear cross-sections of other mechanisms used while preventing access to the luggage compartment between the telescopic columns of chassis due to its arrangement under the loading area in the displaced position;
• FIG. 1 shows side individual axonometric views of basic subassemblies of the stretcher, as chassis without covering (d), interface (c), transfer bed (b) including protection sheet (a).
• Axonometric views of the mobile chassis differing in the covering, and showing both variants of wheel units - a wheel unit with unlimited turning radius (2a), and an omnidirectional wheel unit (2b).
• Chassis including its composition; a control column including handlebars and display. Furthermore, there is shown the chassis with wheel units with unlimited turning radius, and with omnidirectional wheel units, including covering in both cases (3c).
• FIG. 6 Overall cross-section of the control column and its arrangement in the omnidirectional bearing including its arrest through slidably mounted cone with unlocking through a hand grip pivotally mounted on the front cross- member of the chassis. Then there is apparent a retractable handlebar column, including its arrangement and positioning. In the upper part, there is shown an arrangement of handlebars including large safety button. Overall section shows also covering of handlebars and extension part of the column.
• FIG. 7 Detailed cross-sections of the upper part of the control column - axial composition of the handlebar rotation; a cross-section of display with card and card reader, including a detailed arrangement of handlebars (7a).
• handlebars 7.
• FIG. 7 Detailed cross-sections of the upper part of the control column - axial composition of the handlebar rotation; a cross-section of display with card and card reader, including a detailed arrangement of handlebars (7a).
• handlebars (7a) In the second section, there is a stabilizing positioning of the central position of the handlebars shown, including the stoppers (7b).
• the last axonometric view shows the control column with handlebars, brake, display and covers (7c).
• FIG. 8 A detailed cross-section of the column arrangement, its arrest through a disengaging cone with spring, controlled via rod or cord through a swivel- mounted hand grip.
• FIG. 9 Three axonometric drawings of interface, where the top view shows apparently the height guidance rollers, guidance profiles, guide rails and retaining hooks, including holders of protection sheet (9a); the middle view shows a detailed representation of the automatic lock arrangement (9b); and the third view shows the interface from below (9c).
• FIG. 10 An axonometric representation of the interface with open protection sheet
• FIG. 11 An axonometric view of the transfer bed from above with extended side rails, and an axonometric view of the transfer bed from below where the retracted side rails are apparent, while support handles are folded in both cases, i.e. in transport position (11a; 11c); in middle of the picture there is a detailed cross-section of the support handle in the tilted and locked position, and the method of its arrest, including a central locking button, and a push rod (1 b) is shown in detail.
• FIG. 12 An axonometric bottom view of the transfer bed with retracted support handles, i.e. in transfer position (12a); at the bottom of the drawing there is an overall top axonometric view of the transfer bed with retracted side rails, extended X-ray frame with folded X-ray cassette and open handles (12c) which is necessary either during transfer or when replacing X-ray cassette; in the middle of the drawing there is a detail of axonometric view of the raised backrest (12b), where the backrest must be unlocked via lever with handle, and subsequently the board with handle must be tilted manually into the position required.
• FIG. 13 In the upper part of the of the drawing, there is an axonometric view of the transfer bed with raised backrest, open front support handles, extended X-ray frame without the X-ray cassette, and retracted side rails (13a), below there is shown an axonometric detail of the backrest consisting of board with handle, support arms, gas springs and lever with handle ( 3b); followed by an overall top axonometric view of the bed frame where the handles of gas springs of the backrest positioning are apparent (13c); in the bottom part of the drawing there is a detail of the X-ray frame with control indicators of the X-ray cassette position (13d).
• FIG. 14 Three axonometric views of the side rails; top and middle are the side rails in both functional extreme positions (14a; 14b); and a bottom view shows a detail of one side rail (14c).
• FIG. 15 Four detailed cross-sections of the side rail, where the first detail in the middle from left shows a cross-section of tension of the control cord with ending adjustable through a pulley (15b); the second detail in the middle shows a cross-section of the torsion spring intended for returning the handle of the side rail to the starting position (15c); the third longitudinal detail shows apparently attaching of the cord with ending in the adjustable pulley and its fixing in it, further the passage of the cord via a guidance pulley of the cord (15d); the fourth upper detail shows the passage of the cord with ending the middle of the side rail frame, including a taper pin with double shoulder serving to lock the side rail, and on the right there is a through pin of the pivoting movement of the side rail handle (15a).
• FIG. 16 An axonometric view of mobile multipurpose transfer bed in a version without interface where the arrangement of the telescopic columns through sliding segments of the extensions with transverse pin in the heads of telescopic columns is apparent directly in the lower part of the bed (16a;16b).
• a stretcher 1 - mobile, multipurpose transfer bed for patients consists of these major subassemblies: mobile chassis 2, telescopic columns 3, interface 4 and transfer bed 5.
• the basic subassembly of the mobile chassis 2 is a chassis frame 6 having horizontal wheels 7 mounted in the corners.
• Another important subassembly of the mobile chassis 2 is a wheel unit 8 with unlimited turning radius, supplemented by a spring shock- absorber 9, which pair forms the front and rear axle.
• the wheel unit 8 with unlimited turning radius is placed in corner forks of the chassis frame 6 in corner pegs 10, while on each front and rear pair of pins there is suspended a supporting girder H of each pair of the spring shock-absorber 9 leaning on height- adjustable handles of the supporting girder V ⁇ _ which position is adjustable via linear drive 12 placed between the chassis frame 6 and the supporting girder and balancing springs 3 are placed in parallel with it.
• a mobile chassis 2 can be use where the wheel unit 8 with unlimited turning radius is replaced by an omnidirectional wheel unit 14, while its connection to the chassis frame 6, as well as the supporting girder H is same as for the wheel unit 8 with unlimited turning radius.
• Telescopic columns 3 are placed axially and firmly in the front and rear part of the chassis frame 6 outside the loading area, on which upper supporting areas the extensions 15 with a transverse pin are placed, on which ends the sliding segments 16 are placed.
• Power batteries 17 are placed in pockets of the chassis frame 6 on the sides of telescopic columns 3.
• control column 18 which basic part is a column frame 19, placed by its vertical peg 20 in the bottom part into the omnidirectional bearing 2 placed in the chassis frame flange 22.
• a column frame 19 is followed by a vertical disengaging part of column 23 placed in guidance housings 24.
• An actuating mechanism 25 is placed in the overlapping areas of both parts, and above is the disengaging part of column 23 ended by a head 26, which is tightly bound with a horizontal flange 27, axially locking outer ring of the omnidirectional bearing 29 of handlebars, while the ring is placed in a ring 28 with flange firmly attached to the horizontal flange 27.
• a handlebar frame 30 mounted pivotally forming the basis for embedded handlebars 31. fixed by a clip 32.
• the clip 32 is followed by a holder 33 carrying the main unit 34 of the control system and card reader.
• On the opposite side there is a safety switch 35 with a large button 36, attached on a small holder 37, which is a part of the handlebar frame 30 in which central part there is firmly mounted a vertical handlebar bolt 38 that extends with its shaped bottom part into shaped recess of the rotary absorber 39 coupled with the head 26 in its upper part.
• the handlebar bolt 38 which extends with its bottom rim into the space of the head 26 is shut down in its bottom part through a clamping ring 40 thus ensuring the connection with angular sensor 4J. carried by a sensor holder 42.
• a torsion spring 43 mounted coaxially, and on its side there are push segments 44 mounted coaxially into which the ends of the torsion spring 43 extend.
• the push segments 44 in the basic position of the handlebars 3J_ lean at the same time on a quick pin 45 that is a part of the horizontal flange 27, and further they lean on a nose 46 as a part of the handlebar frame 30.
• a part of the ring 28 with flange firmly connected with the horizontal flange 27 is a pair of bumpers 47 in which a contact with rubber stops 48 in extreme positions occurs when turning the handlebars 3J. which are part of the handlebar frame 30.
• the handlebars 3 and disengaging part 23 of column are under the column cover 49 while under the opening of the upper cover, and a display 50 is its part.
• a gripping handle 5J_ with hand presence detection 52 is attached; further on the right side toward the operator a thumb operated electronic throttle 53 is placed, and an electronic brake 54 is on the opposite side.
• the control column 18 can be positioned about ⁇ 90° from the working position.
• a blocking pin of vertical blocking pin 55 of the vertical peg is used that is placed in sliding housings with collars 56 inserted into the flange extension 57 that is a part of the chassis frame flange 22.
• the blocking pin of vertical peg 55 is pressed into the shape recess of the vertical peg through a pin spring 58, leaning on the opposite side to the shoulder of the ballscrew 59 placed in flange extension 57, while through its center an angled rod passes, which is via a rod coupling 6_1 connected with a rod 62 connected with a release handle 63 through a swinging wheel of two coaxial pins 64.
• An intermediate element between the mobile chassis 2 and the transfer bed 5 is the interface 4, which basic part is an interface board 65 comprising two guiding sagittal profiles 66 which have in the front part inside two frame holders to which are firmly anchored sliding segments 6 of the front extension 15 with a transverse pin; in the rear compartment of the interface 4 inside of the guiding sagittal profiles 66 there are frame pockets 68 where the sliding segments 16 of the extension 15 with a transverse pin.
• the pair of the guiding sagittal profiles 66 is followed by a guiding board 69 in the center of which an automatic lock 70 firmly connected with the interface board is located, that is ended by a pair of loading edges 71 of the guiding board 69.
• In the rear part of the interface board 65 there are two corner forks 72 in which two height guidance rollers 73 are placed rotationaliy, and two retaining hooks 74 are placed in the front part of the interface 4.
• Adjustable locking joint 77 is arranged so that it forms an arm fork 79, where an arm eye 80 is inserted concentrically in which a mounting groove 81_is placed.
• a push pin 82 with a radial pin 83 fitted in it is placed into the hole of created articulated arrangement using mounting grooves 81 of the arm fork 79 and arm eye 80.
• a joint spring 84 is fitted, leaning on the blind hole of the fork arm 79 on the opposite side, and at the same time dimensionally bound against rotation with the second eye of fork arm 79; while the radial peg 83 of the push pin 82 is locked against one of the two radial grooves 85.
• the range of motion is determined by an arcuate groove 86 of the arm eye 80 against the adjusting pin 87 firmly tied to the blind eye of arm fork 79.
• the protection sheet 78 may be deployed over the opened holders.
• Infusion hooks 39 are firmly arranged on the double holders 75 on its end arms from the inside in the front part of the interface 4.
• the last subassembly of the stretcher ⁇ - mobile, multipurpose transfer bed for patients is the transfer bed 5, arranged on the interface 4 by its front part using the bed castors 88 downwardly leaning on the guidance surface 89 of the interface board 65, laterally leaning on the guiding sagittal profile 66 of the interface 4, and the upper part is upwards blocked through castor quick pins 90 arranged in front in the axis of the bed castor 88 and blocked against the two retaining hooks 74 of the interface 4.
• the rear part of the bed is blocked via bed castors 88, as well as the front part; in other necessary directions, the blocking is done through the staffed pin 9J_, with possibility of rigid connection with the interface through an automatic lock 70.
• the unlocking from the position is possible only by pressing the button 92 arranged in the left lateral part of the guidance board 69.
• the main part of the transfer bed 5 is the bed frame 93, in which the bed castors 88 are placed rotationally in forks near the corners, and in which rear part the staffed pin 9_1 is firmly attached with it in.
• Sides of the bed frame 93 consist of two double runners 94 on which in the central zone the double handles 95 are attached designed to handle the backrest 96 in which the support arms 97 are placed which together with the board 98 with handle form the base of the backrest 96.
• the second double handle is always used for gas springs 99 balancing the backrest 96; while a lever 100 with handle serving for locking the gas springs 99 is arranged pivotaliy in the head parts of a piston assembly.
• angled corner forks 72 are to store the carrying handles 101 arranged pivotaliy in the horizontal plane in the range of 90°; while in the initial position they are in alignment with the contour of the transfer bed 5, and each is locked via the tapered pin 102 locked through a torsion spring 103 leaning on the bed frame 93 into the shaped recess of the carrying handle 101.
• the carrying handles 101 are in the same line as the double runners 94, and the tapered pin 102 fits for each of the carrying handle 101 to its corresponding conical recess.
• a central button 105 is arranged centrally slidably at the end of the carrying handle 101 , connected with a push rod 106; while a return spring 107 leaning on the stop ring 108 on the opposite side is arranged in the central button 105.
• longitudinal lines 109 are placed in it along the entire length, in which an X-ray frame 110 moves with the alternative, a longitudinal or transverse possibility of inserting the X-ray cassette 111.
• the X-ray frame HO has on the sides on the shaped extensions 112 the indicators moving between the longitudinal profiles of the double runners 94 of the bed frame 93.
• a system of side rail retraction 1_14 is consisting of transversely extending guiding side rails 115 with guiding grooves 116 in opposition for slidably deposition of a collapsible side rail 117.
• the collapsible side rail 117 mainly consists of a side rail frame 118 into which a side rail padding H9 is inserted through the pushed parts 120. If the collapsible side rail 117 is in the functional position, it is arrested, and for unlatching there is a side rail handle 122 arranged on the through pin 121 pivotal!y, which return to the starting position is ensured via a torsion spring 123 of the handle.
• Movement of the collapsible side rail 117 in guiding grooves 116 is enabled through a pair of fixed pins 124 on the side rail frame 118 and a pair of hollow bolts 125 with shoulder firmly arranged in the side rail frame 118; while in each of the hollow bolt 125 with shoulder, a conical bolt 126 with a double shoulder is arranged into the shaped recess of the guiding side rail 115, extruded by a fitted pin spring 127; a cord 128 with ending arranged in conical bolt shoulder 126 with a double shoulder operates when unlatched, then the cord passes through the side rail frame 118, where it passes through the guiding pulley 129 and it ends in the adjustable pulley 130 in which it is attached by two set screws 131.
• the adjustable pulley 130 adjusts the backlash of the cord 128 with ending and its blocking is done through a retaining screw 132. After unlatching through the side rail handle 122 the second position of the collapsible side rail 117 is the position under the transfer bed 5; while the lower hollow pins 125 with shoulders fit in to the end fault 133 in the lower guiding grooves 16.
• the upper surface of the bed frame 93 is fitted with the loading board 134, this function is provided by the backrest 96 in the front part.
• a deformable monolithic mattress 135 lies on these areas as a loading area for users with seatbelts 136 attached in the shaped recesses of the bed frame 93.
• Chassis covers 138 are used for safety, utility and aesthetic reasons.
• the stretcher 1 - mobile, multipurpose transfer bed for patients fulfills a number of necessary functions which determine the composition and arrangement of individual subassemblies.
• the basic and most important subassembly is the omnidirectional mobile chassis 2 on which an interface 4 of standard dimensions in terms of versatility is placed through fixed axially arranged two telescopic columns 3.
• a transfer bed 5 connected to interface 4 at three points is inserted by a sagittal sliding into the interface 4.
• the mobile chassis 2 which main part is a chassis frame 6 forming lateral and anteroposterior bumper zone has horizontal wheels 7 with a vertical axis, allowing better ratios in contact of the chassis with the outside environment, arranged at the corner forks.
• the wheel units 8 with unlimited turning radius are further placed in the chassis frame 6 through shock-absorber 9 with spring enabling overcoming natural obstacles during operation.
• a supporting girder H is designate, suspended on two corner pegs . 10, which forms height-adjustable support of the shock-absorber 9 with spring, which is a part of the wheel unit 8 with unlimited turning radius also arranged in the corner forks of the chassis frame 6 in the corner pegs 10; while the positions is adjustable via a linear actuator 12 placed between the chassis frame 6 and the supporting girder V ⁇ , and bafancing springs 13 are pfaced in parallel with it.
• the stretcher 1 - mobile, multipurpose transfer bed for patients there can be a mobile chassis 2 used, where the wheel unit 8 with unlimited turning radius is substituted for an omnidirectional wheel unit 14 which advantage is no need of wheel turning that is provided with a special function of the wheel turning depending on the needs of the movement, allowing so-called crab movement sideways or turning on the spot in extreme modes.
• Batteries 17 needed to power the in-wheel electric drives, electric drives of directional wheel turning of the wheel units 8, electric motors of the telescopic columns 3 and electromagnetic brakes 54 are placed in the cavities of the chassis frame 6.
• Telescopic columns 3 are placed in anterior-posterior way firmly in the chassis frame 6 among the batteries 17; while on the upper part of each of them is firmly mounted an extension 15 with a transverse pin, in which end parts the sliding segments 16 are placed extending into the space of recesses of interface board 65; while one extension 15 with a transverse pin and sliding segments 16 connects a telescopic column of the interface 4 rotationally only, in case of the second telescopic column 3 there is a swivel arrangement, but there is also a sliding arrangement frame of the interface board 65 allowing not only raising but also anteroposterior tilting of the interface 4, i.e. also of the transfer bed 5 placed on it.
• the last part of the mobile chassis 2 is a control column 18 which is rotatable in both directions by 90° as a whole in the bottom part especially for the reason of manipulation of the transfer bed 5, or for the reason of the necessary reduction in the overall length of a mobile chassis 2 in certain situations, e.g. when riding in an elevator etc.
• control column 8 The basis of the control column 8 is an L-shaped column, ended by a vertical peg at the bottom of the column, which is arranged through an omnidirectional bearing 21 in chassis frame flange 22.
• the control column 18 is adjustable in its vertical part through a disengaging part of column 23 via guiding housings 24 relative to the column frame 19.
• a variation actuating mechanism 25 is in the vertical interspace of guided and guiding members of the telescopic column 3 enabling the adjusting in the direction of upward movement of the disengaging part of column 23, continuous downward movement is allowed only at the highest upper position.
• a part of the disengaging part of column 23 is then a head 26 which is firmly connected with a horizontal flange 27, closing together with a ring 28 with flange the space of the outer ring of the omnidirectional bearing 29 of handlebars.
• An inner ring of the bearing 29 is arranged on the hollow pin of the handlebar frame 30 in which upper part in the shaped recess 104 are the handlebar 3_1 placed and secured through a clip 32 relative to the handlebar frame 30.
• a holder 33 of the main unit 34 of the control system and card reader is a rigid part of the clip 32.
• a safety switch 35 of the large button attached through a holder 33 connected firmly with the handlebar frame 30, which rigid part is vertical handlebar bolt 38 extending to the space of the head 26 that is firmly connected with a flange of rotary absorber 39; while its central part is dimensionally interconnected with a handlebar bolt and allows the damping of the motion of the handlebars 3J. depending on the speed of rotation.
• a clamping ring 40 placed allowing firm connection between the handlebar bolt 38 and the rotating part of the angle sensor 4J . which body is connected with an angle sensor holder, firmly interconnected with the head 26 of the disengaging part of column 23.
• the angle sensor 4J is designated to measure an angular rotation of handlebars 3_1 controlling the wheel turning of the wheel units 8 with unlimited turning radius of the mobile chassis 2 via drive by wire system.
• Disengaging part of column 23 together with handlebars 3J . is covered by a column cover 49 in which upper part a display 50 for steering of the stretcher - mobile, multipurpose transfer bed for patients is placed; while the handlebars 3J. are complemented by mutually gripping handle 51., and hand presence detection 52.
• the gripping elements are complemented by an electronic throttle 53 with throttle by wire system controlled by thumb, returning to the starting position without the contact; on the left side there is a security electronic brake 54 operating in brake by wire system electronically determining the rate of release thereby allowing a safety function of complete stop during power failure via accumulated spring force, additionally, the system is used as an electronic parking brake controlled by operator, for example through the display 50.
• the chassis frame flange 22 is followed by the flange extension in which the sliding housing with collar are inserted, in which the blocking pin 55 of vertical peg is arranged, oppressed by a pin spring 58 and unlocked by the angled rod 60 led in the ballscrew 59.
• the angled rod 60 is interconnected with rod 62 of the release handle 63 pivotaliy located in the coaxial pins 64; while both rods 62 are interconnected with a rod coupling 61 ensuring the possibility of adjusting of blocking mechanism of the control column 18.
• Another major subassembly following the mobile chassis 2 is the interface 4.
• the interface 4 consists of basic self-supporting interface board 65 which is connected to other necessary components. Above all, these are two laterally guiding sagittal profiles 66 continuing in a lateral guiding board 69 in the front part, and in the front part of the interface board 65 there are corner forks 72 in which a pair of vertically guiding rollers 73 is arranged. In the rear part of the interface board 65, there is a pair of retaining hooks 74 which after approaching of the transfer bed 5 prevent its lifting due to contact of central staffed pins 90 of the transfer bed 5_castors; then the guiding sagittal profile 66 prevents the horizontal lateral movement of the bed castors 88; and the third retaining point of the transfer bed 5 is a staffed pin 9J.
• Hinged holder of the protection sheet 78 of the use can be mounted alternatively on the sides of the interface 4; while a double holder 75 is in its head part, and a single holder 76 is in the opposite side on each side.
• Opened holders 75, Zf are used to deploy the protection sheet 78 and thus protect the patient from harsh weather, e.g. rain; then infusion hooks 139 are on double holders 75 in the front part of the interface 4 on the end arms inside and are used for hanging the infusion during patient treatment.
• the front double holders 75 are equipped with group of three infusion hooks 39 on its inner side and in an expanded state they also serve as integrated infusion stand. Holder are positioned via locking joints 77 in axis always consisting of a push pin 82 with a molded radial pin 83 and supplemented by a joint spring 84 embedded in its cavity.
• One of the swinging arm positioning is ended with an arm eye 82 and this is inserted into the second end - arm fork 79-
• the push pin 82 with molded radial pin 83 is inserted axially the specified relative position of arms over the mounting groove 8_1 of the arm eye 80 and arm fork 79 inwardly so that the joint spring 84 is leaning on the blind arm fork 79; a sliding shaped interconnection of the end of the push pin 82 and the inner recess of the rear arm fork 79 occurs simultaneously, it is necessary to rotate one of the arms or the push pin 82 thereby blocking the push pin 82 into the locking joint 77, and positioning is done through the radial pin 83 that is inserted into the two end radiai grooves 85 on the side of the joint spring 84 of the arm eye 80.
• a swinging movement of arms is limited last through an adjusting pin 87 fitted in the arm fork 79 extending into the arc groove 86 of the arm eye 80 creating a movement that is limiting the end stops.
• the last subassembly of the stretcher - mobile, multipurpose transfer bed for patients is the transfer bed 5.
• the transfer bed 5 consists of the following basic subassemblies and parts: it is mainly the bed frame 93 with double runners 94, then the adjustable backrest 96 comprising two support arms 97 connected through the board with handle 98 balanced via two gas springs 99 always latched in place of the piston assembly head through the lever with handle 100.
• the support arm 97 and the gas spring 99 are arranged pivotally in the double handle 95 of the bed frame 93; while in corners of the bed frame 93 there are carrying handles 101 arranged pivotally being locked in a working position through a tapered pin 102 pushed by the push spring 103.
• a central button 105 pivotally mounted in the handle 10, is used to unlatching when pressing the central button 105 a shift of the L-shaped push rod 06 occurs while acting on the front part of the tapered pin 102 which causes releasing of the handlelOl from the bed frame 93 and it can be folded by 90° to the starting position; while the tapered pin 102 due to action of the push spring 103 fits into shallow shaped recess 104 of the carrying handle 101 from which the tapered pin 102 can be gotten out by increased manual pressure. Movement of the push rod 106 and thus also the central button 105 into the initial position is caused by the return spring 107 braced between the embedded stop ring 108 and the central button 105 shoulder. The adjustment of the function described can be done via threaded connection between the push rod 106 and the central button 105.
• the transfer bed 5 further comprises a movable X-ray frame 110 in two longitudinal lines 109.
• An electronic X-ray cassette 1 1 1 is inserted crosswise or lengthwise - according to the shaped matrixes - into the X-ray frame 1 10; while side indicators 1 3 are used to identification and manual adjustment of its position connected with the X-ray frame 1 10 through shaped extensions 112 and moving on both sides in the interspace of the double runner 94 of the bed frame 93.
• a system of side rail retraction 114 is mounted firmly in the lower central part of the bed frame 93; consisting of guiding side rails 15 with shaped guiding grooves 1 16 and two side collapsible side rails 1 17.
• the collapsible side rail 1 17 consists of a side rail frame 1_18 into which a side rail padding 1 19 is inserted through the shaped flexibly pushed parts 120, and further a side rail handle 122 mounted pivotally in the side rail frame 118 and presuspended through a torsion spring 123 of handle with centering on a through pin 121 .
• the collapsible side rail 1 17 is guided in two pairs of guiding grooves 1 16 when inserting.
• the upper pair of the guiding grooves 116 is guided by a pair of fixed pins 124 on the side rail frame 1 18, and jn the bottom pair of the guiding grooves 1 16.
• Blocked collapsible side rail 117 is unlocked such that pulling a hand on the handle 122 of the side rail creates a pull on a pair of cords 128 with endings placed in the side rail frame 118 and extending on both sides into the inner conical bolt shoulder 126 with double shoulder thereby causing a disconnection.
• Conduction of the tensile forces in each of the cords 128 with endings enables adjustable fixing of the free end of each of the cords 128 with endings in the adjustable pulley 130 through two set screws 131; as well as the assessment of the cord backlash enables conical arrangement of the adjustable pulley 130 in handle 122 of the side rail and its adjusting rotation, and securing through a retaining screw 132.
• the cord 128 with ending is arranged into the groove of adjustable pulley 130 through the guiding pulley 129 rotatably mounted in the side rail frame H8 thereby permitting a draught in the cord 128 with ending through the handle 122 of the side rail without substantial faults.
• Fitting of the collapsible side rail ⁇ 7 in retracted position is done without latching and it is enabled due to the short end fault 133 of the lower guiding groove 1 16 of the collapsible side rail 1 17; and the collapsible side rail 1 17 can be pulled out from this position by a slight tension.
• a loading board 134 is arranged which is together with the board 98 with handle used as a basis for the arrangement of a monolithic mattress 135; and on double longitudinal runners 94 of the frame bed 93 there are safety belts 136 attached encompassing the monolithic mattresses 135 and the user stretcher 1, if necessary.
• the stretcher - mobile, multipurpose transfer bed for patients is controlled by electronic control system which electronics 137 and electrical wiring, servoamp!ifiers especially, are arranged in front and back pockets of the chassis frame 6 and among the power batteries 17.
• Chassis covers 138 are used for safety, utility and aesthetic reasons, from which it is possible to use the central part between the telescopic columns 3 for storing the transferred material.
• the device is systematically utilized in health care, especially in large hospital campuses with the need for passage through the outdoor areas and the need for rescue and transport of patients in outdoor conditions (unpaved surfaces, etc.).
• robotic stretcher Industrial application of the robotic stretcher is given by the wide range of its associated diametrically different functions into one robotic device that can be individually or in other combinations used in different types of other medical technologies and special robotic devices, both in terms of transportation, rehabilitation and unattended processes of immobile persons.
• the proposed robotic system is also an inspiring and realistic basis for robotic technology in medical and industrial logistics and electronically controlled special purpose transport means in Smart Cities.

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• 2015
  • 2015-10-07 CZ CZ2015-701A patent/CZ308076B6/cs unknown
  • 2015-11-10 WO PCT/CZ2015/000135 patent/WO2017059830A1/en not_active Ceased

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