EP3370675B1 - Mobiles patientenbett - Google Patents
Mobiles patientenbett Download PDFInfo
- Publication number
- EP3370675B1 EP3370675B1 EP15794748.2A EP15794748A EP3370675B1 EP 3370675 B1 EP3370675 B1 EP 3370675B1 EP 15794748 A EP15794748 A EP 15794748A EP 3370675 B1 EP3370675 B1 EP 3370675B1
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- European Patent Office
- Prior art keywords
- patient bed
- mobile patient
- medical system
- axis
- bed
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Images
Classifications
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- A61G13/00—Operating tables; Auxiliary appliances therefor
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Definitions
- Embodiments of this invention relate generally to patient beds for medical procedures, and more particularly, to systems and methods providing mobile patient beds for medical and/or surgical procedures.
- ophthalmic laser surgery require a patient to either lie down, and/or sit on a bed during one or more stages of the procedure.
- a patient may be prepped for surgery and have his or her eye(s) measured and either while sitting or lying down on a bed. Later, the patient may lie down while undergoing laser treatment for various procedures, such as corneal flap creation, laser-assisted in situ keratomileusis (LASIK), or capsulotomy and lens fragmentation for treatment of cataract.
- the patient may also need to lie down during operation procedures such as phacoemulsification, cataract removal, and intraocular lens (IOL) implantation. Following surgery, the patient may lie on the bed to recuperate.
- IOL intraocular lens
- EP 2484325 A2 describes a patient support which may, among other things, support a person in a laying-down or a seated position; a mobile lift which may assist a person with the process of moving from a seated or laying-down position to a standing position, or moving from one type of patient support to another (e.g. from a bed to a wheelchair or vice versa); and a docking apparatus may secure the position of the mobile lift relative to the patient support.
- the docking apparatus may include an electrical connection between the mobile lift and the patient support.
- the docking apparatus may permit control of the mobile lift by the patient support, and/or permit control of the patient support by the mobile lift.
- the mobile patient bed comprises a communication device (e.g., a Bluetooth transceiver or other wireless transceiver) configured to selectively couple the mobile patient bed to at least one medical system (e.g., a laser eye surgery system).
- a communication device e.g., a Bluetooth transceiver or other wireless transceiver
- at least one medical system e.g., a laser eye surgery system
- the mobile patient bed comprises at least one processor configured to receive a medical system command via the communication device and process the medical system command when the mobile patient bed is coupled to the at least one medical system, receive and process a user command (e.g., via at least one user control) when the mobile patient bed is not coupled to the at least one medical system, and refrain from processing the user command when the mobile patient bed is coupled to the at least one medical system.
- the mobile patient bed may be coupled to the medical system in at least one of the locations and not coupled to the medical system in at least another one of the locations.
- the mobile patient bed comprises a seat and a plurality of motors.
- the plurality of motors are configured to position the seat along a first axis that is longitudinal with respect to the bed, a second axis substantially perpendicular to the first axis, and a third axis substantially perpendicular to the first and second axes, wherein the positioning of the seat along each axis is independent of the positioning of each other axis, respectively, and wherein the positioning of the seat is performed in response to the processed medical system command or the processed user command.
- the plurality of motors may be configured to position the seat in a Trendelenburg position.
- the mobile patient bed may comprise a plurality of actuators configured to position the bed and/or portions thereof.
- the mobile patient bed may include a first axis actuator, a second axis actuator, a third axis actuator, a foot rest actuator, a Trendelenburg actuator, and/or a back rest actuator.
- the first axis, second axis, and third axis actuators may move the seat along an x axis, a y axis, and a z axis.
- the mobile patient bed may further comprise a headrest configured to pivot about a fourth axis substantially parallel to the first axis and to move along the fourth axis, a fifth axis substantially perpendicular to the fourth axis, and a sixth axis substantially perpendicular to the fourth and fifth axes, wherein the positioning of the headrest along each axis is independent of the positioning of each other axis, respectively.
- the mobile patient bed may further comprise a plurality of casters. At least one of the casters may be lockable with respect to transverse motion along the ground to allow the mobile patient bed to pivot about a pivoting axis perpendicular to the ground.
- a brake configured to lock at least one of the casters from rotation may be included.
- the medical system may be configured to determine a relative location of the at least one mobile patient bed via a signal received from the communication device of the at least one mobile patient bed. For example, the medical system may determine the position of the at least one mobile patient bed based on radio communications with the at least one mobile patient bed. In some embodiments, the medical system may use a plurality of receivers to receive a communication from the at least one mobile patient bed, and triangulate the position of the bed based on differences in times at which the communication is received by each receiver. The medical system may also be configured to assign a separate identity to each at least one mobile patient bed, for example during initial setup of the mobile patient bed with a laser system.
- Mobile patient beds such as the embodiments described herein may be used to support a patient during various stages of one or more medical procedures and move the patient between the stages.
- the bed may be taken from a surgery prep area to a laser surgery suite, from the laser surgery suite to a surgery suite or operating room, and from the surgery suite or operating room to a recovery area. In each area, the bed may be used to provide and/or support various surgical functions.
- Specific bed use examples may include cataract surgery for removal of the crystalline lens (e.g., anterior capsulotomy, phaco-fragmentation, and/or creation of single plane and multi-plane arcuate cuts/incisions in the cornea, each of which may be performed either individually or consecutively during the same cataract surgery procedure), and/or to transport and to position the patient for surgical removal of the crystalline lens and implantation of an IOL.
- Ophthalmic laser surgery is presented as an exemplary medical procedure for use with the bed herein, but mobile patient bed embodiments may be used for other procedures with similar and/or different stages as well (e.g., dental procedures, other surgical or medical procedures, etc.).
- the mobile patient bed may be used as a patient support system with a precision laser system for cataract surgery.
- the mobile patient bed may be located next to and wirelessly connected to the laser system to position a patient for laser cataract surgery.
- the mobile patient bed may be either rotated out from under the laser system to perform surgical removal of the crystalline lens and to implant an IOL or disconnected from the laser system to transport the patient to a surgery suite.
- the mobile patient bed may be fully functional when not attached to the laser system to transport and position a patient for surgical removal of the crystalline lens and implantation of an IOL.
- the mobile patient bed When positioned under the laser system, the mobile patient bed may be a fully integrated sub-system of the laser system.
- the mobile patient bed may be free to rotate about one or more casters (e.g., the front right caster located near the patient's right foot in some embodiments) about a vertical axis while the one or more caster wheels are locked from rotating/rolling.
- one or more casters e.g., the front right caster located near the patient's right foot in some embodiments
- the one or more caster wheels are locked from rotating/rolling.
- FIG. 1 is a mobile patient bed 100 according to an embodiment of the invention.
- the mobile patient bed 100 may include a patient seat 1, a patient footrest 2, a patient backrest 3, a patient headrest 4, and/or patient armrests 5.
- the mobile patient bed 100 may include casters with brakes 8, one or more of which may be locking casters 12, and emergency stop controls (e.g., an emergency stop switch, not shown).
- the mobile patient bed 100 may include operator handles and controls 6 (e.g., which may include foot pedals and/or a control pendant), and/or a control joystick 10 which may allow the operator to interact with control electronics and electrical components (not shown) which may be housed inside the mobile patient bed 100.
- the mobile patient bed 100 control electronics and electrical components may be located in a metal enclosure under the patient seat 1 and in the mobile patient bed 100 base.
- the internal components may include communication link components (e.g., wired and/or wireless networking transceivers, hardware, and software) to allow the mobile patient bed 100 to be controlled by remote laser and/or surgical systems.
- the mobile patient bed 100 may be controlled via the user inputs (e.g., controls 6, joystick 10, and/or pendant) and/or via the communication link to perform a variety of actions.
- a user and/or laser system may command the mobile patient bed 100 to adjust X, Y, and/or Z-position of the mobile patient bed 100, articulation of the seat 1, footrest 2, backrest 3, and/or headrest 4.
- some of these articulations may be manual (e.g., headrest 4) and/or may be independently controlled at the mobile patient bed 100 only, rather than controllable by the laser system (e.g., footrest 2, backrest 3, and/or headrest 4).
- the mobile patient bed 100 pivot wheel lock, total caster locks, and/or X-Y-Z position may also be controlled via pre-programmed buttons located on the pendant.
- Controls 6 and/or other components of the mobile patient bed 100 capable of displaying information to a user may provide an indication of mobile patient bed 100 battery status.
- the joystick 10 may be, for example, a hard wired 3-axis joystick control.
- the joystick may provide user inputs to the laser system to control the mobile patient bed 100 motion in the X, Y, and Z axes.
- the control joystick 10 may be active and functional only when the mobile patient bed 100 is connected to the laser system through the wireless connection. While the mobile patient bed 100 is being utilized as a standalone device, the joystick 10 may be deactivated. Likewise, while the mobile patient bed 100 is connected to the laser system, other controls 6 may be deactivated.
- the mobile patient bed 100 may be equipped with a latching emergency stop switch. Pushing the emergency stop switch may disable electrical power to the mobile patient bed 100. A twist of the emergency stop switch may release the emergency stop switch.
- the emergency stop switch may be located on the top surface of the mobile patient bed 100 base enclosure. Other configurations for an emergency stop switch aside from the one described may also be possible. For example, some embodiments may allow an emergency stop command to be issued via wireless communication to the mobile patient bed 100 (e.g., from the laser system).
- the mobile patient bed 100 may sit on a plurality of casters (e.g., four) 8.
- One or more of the casters may be locking casters equipped with brakes 12.
- the caster brakes 12 may be operated separately and/or in combination in at least the following modes.
- the brakes may provide a total caster lock to park the mobile patient bed100, a directional lock on the two rear casters to provide for directional stability during patient transport, and/or a pivot wheel lock on one caster to lock the mobile patient bed 100 pivot wheel when the mobile patient bed 100 is positioned under the laser system.
- the mobile patient bed 100 may be configured to pivot underneath the laser system.
- the mobile patient bed 100 pivot point may be one of the casters (e.g., the front right caster) which may be locked for rolling while still allowing mobile patient bed 100 rotation.
- mobile patient bed 100 casters may be selectively locked so that two casters are directionally locked (i.e., they can roll but not turn) while the other two casters are unlocked and may freely rotate.
- the front casters may freely rotate and the rear casters may be directionally locked, which may aid in transporting the mobile patient bed 100 down halls and/or into position under the laser system.
- Electronic caster locks may include a manual override in case of power loss.
- the mobile patient bed 100 may be rolled under the laser system and positioned to align the bridge of the patient's nose with the laser system distal lens using the LED illumination lights of the laser system.
- the front right mobile patient bed 100 caster wheel may be locked to allow the mobile patient bed 100 to pivot.
- the mobile patient bed 100 may include one or more microcontrollers and associated memory and software.
- the firmware may include three microcontrollers, one each for the pendant, joystick, and other mobile patient bed features, respectively. Other configurations (e.g., a single microprocessor for all systems) may be possible.
- the mobile patient bed 100 may be independently controlled through the pendant (e.g., when there is no wireless connection) or control joystick (e.g., when the mobile patient bed 100 is wirelessly connected to the laser system).
- the microcontrollers may support pendant button input functions to tilt the seat backrest and seat base up and down; to tilt the footrest up and down; to move the Z-axis up and down; and/or to center X and Y stage via a home button, for example.
- the software may enable and disable some or all caster locks with user input from the pendant button or alternatively from user accessible foot controls.
- the mobile patient bed 100 may include an on-board battery and an on-board charger that may be used to charge the battery from an external AC power source (e.g., from a wall outlet).
- the mobile patient bed 100 may also be powered by AC power (e.g., when plugged into a wall outlet).
- FIG. 2 shows example mobile patient bed 100 hardware according to an embodiment of the invention.
- a pendant microcontroller 110 may receive inputs from the controls 6, and the joystick microcontroller 120 may receive inputs from the joystick 10.
- the microcontrollers 110, 120, 130 may be in communication with at least one seat motor 101 for positioning the seat 1, at least one footrest motor 102 for positioning the footrest 2, at least one backrest motor 103 for positioning the backrest 3, at least one headrest motor 104 for positioning the headrest 4, at least one pivot lock 108 for locking pivoting of one or more casters 8, and/or at least one wheel lock 112 for locking the brakes 12 of one or more casters 8.
- a headrest 4 may be manually positioned in some embodiments.
- Networking hardware 150 e.g., a Bluetooth transceiver
- the joystick microcontroller 120 may send user inputs to the laser system, and the laser system may control one or more of the motors and/or locks 101, 102, 103, 104, 108, 112 based on the inputs.
- a battery 140 may supply power to the microcontrollers 110, 120, 130; networking hardware 150, I/O systems 6, 10; and/or motors and locks 101, 102, 103, 104, 108, 112.
- the battery 140 may be coupled to an AC source (e.g., a wall outlet) for recharging and/or to power the microcontrollers 110, 120, 130; networking hardware 150, I/O systems 6, 10; and/or motors and locks 101, 102, 103, 104, 108, 112.
- some or all of the motors 101, 102, 103, 104 may provide complete XYZ freedom of motion and tilting.
- seat motors 101 may comprise an X motor, a Y motor, a Z motor, and a tilt motor so that the seat 1 may be moved in a direction along the longitudinal axis of the bed 100 and in both axes perpendicular to the longitudinal axis independently of one another.
- the seat 1 may be moved in the X and/or Y direction while the Z position and/or tilt angle is maintained.
- other motors 102, 103, 104 may be provided in sets of X motors, Y motors, and Z motors (e.g., headrest may be moved in a direction along the longitudinal axis of the bed 100 and in both axes perpendicular to the longitudinal axis independently of one another by X headrest motor 104, Y headrest motor 104, and Z headrest motor 104, respectively).
- the bed and by extension the patient, may be placed in the proper position for each procedure in the various stages of surgery.
- the patient may be placed supine in some stages, in a Trendelenburg position in other stages, and/or in a seated position in other stages.
- the seat 1 may include a sensor such as a strain gauge to detect a person lying on the bed 100. This detection may be communicated to the microcontroller 130.
- the mobile patient bed 100 may operate in two modes, a standalone mode when not connected to the laser system and a laser surgical platform mode when connected to the laser system or other medical device supporting wireless communication.
- the mobile patient bed 100 may function through a wireless communication link when connected to the laser system.
- the mobile patient bed 100 may function as an independent mobile patient bed.
- a standalone mobile patient bed mode may allow the mobile patient bed 100 to be used as a surgical platform for removal of the crystalline lens and implantation of an IOL after laser cataract surgery and to transport patients to and from operating rooms and surgical suites.
- User input and control may be received through a wired pendant and/or a wireless pendant (e.g., to control the Z position of the bed and articulation of the chair backrest, seat, and/or footrest) and/or foot pedals (e.g., to control bed position and casters) when the mobile patient bed is in standalone mode.
- the mobile patient bed 100 may be mobile and may be positioned as desired by the user through manually pushing the mobile patient bed 100 on its integral wheels.
- the mobile patient bed 100 may be equipped with wheel locks to prevent inadvertent motion when locked.
- Laser surgical platform mode may allow the mobile patient bed 100 to function as a fully integrated sub-system of the laser system when connected to and controlled by the laser system for performing cataract laser surgery procedures.
- Connection between the mobile patient bed 100 and the laser system may be through a Bluetooth wireless connection or other wired or wireless connection.
- the user may control the mobile patient bed 100 (e.g., to adjust bed position in x, y, and z axes) via a control joystick of the laser system and/or control buttons located on the pendant.
- User inputs may be processed by the laser system, which may control the mobile patient bed 100 to move in accordance with the user inputs.
- the mobile patient bed 100 may be positioned next to the laser system in one or more positions to accommodate various actions. For example, in a patient load position, the mobile patient bed 100 may be rotated out from under the laser system to allow patient ingress and egress from the mobile patient bed.
- the mobile patient bed 100 may be in a reclined or chair configuration in this position. This position may have the patient mobile patient bed 100 rotated significantly (e.g., >50° from normal to laser system) out from under the laser system and may provide clearance for the mobile patient bed 100 to be raised into the patient chair configuration.
- the mobile patient bed 100 may be reclined to the patient bed configuration and may be rotated out from under the laser system to a location that allows the physician convenient access to the treatment eye for LOI installation.
- the user may be responsible for confirming the appropriate position prior to use of the LOI suction ring. For example, this position may have the mobile patient bed 100 rotated approximately 19° out from the patient treatment position (0°)
- the mobile patient bed 100 may be rotated to the 0° position under the laser system with the patient treatment eye located directly under the laser aperture for laser treatment. This position may allow the physician to dock and capture the patient to the laser system and perform cataract laser surgery.
- An example laser system with which the mobile patient bed 100 may communicate may include one or more systems including host hardware and/or software (e.g., including software that controls code running on top of Windows software on a laser system host computer in some embodiments), a field programmable gate array (FPGA) and associated software that may handle low-level laser delivery and safety modules in the hardware, and a graphical user interface (GUI) engine and/or associated hardware.
- host hardware and/or software e.g., including software that controls code running on top of Windows software on a laser system host computer in some embodiments
- FPGA field programmable gate array
- GUI graphical user interface
- the mobile patient bed 100 When connected with the laser system, the mobile patient bed 100 may be predominantly under hardware control via the FPGA. For example, primary safety functions may be provided using hardware on the FPGA.
- the associated FPGA software may provide the interface between the mobile patient bed 100 and the FPGA, and control of the GUI, error display, and treatment pattern data calculations (e.g., pulse energy at each location).
- the mobile patient bed 100 When positioned under and wirelessly connected to the laser system, the mobile patient bed 100 may be a fully integrated sub-system that operates under FPGA control based on user inputs from the mobile patient bed 100 control joystick.
- the laser system may also receive orientation and alignment data for the mobile patient bed 100 from the mobile patient bed 100 via wireless communication.
- the user may be able to input Trendelenburg positioning, footrest position, headrest position, etc. via the GUI.
- multiple mobile patient beds 100 may be used with a single laser system.
- the mobile patient bed 100 When positioned under and wirelessly connected to the laser system, the mobile patient bed 100, the mobile patient bed's location may be communicated to the laser system and/or detected by the laser system, for example using Bluetooth triangulation.
- any of the beds 100 within wireless range of the laser system may be located and distinguished.
- Specific beds 100 may be associated with specific patients (e.g., in a memory of the bed 100 itself or the laser system), so that a patient may be located in this manner as well.
- the mobile patient bed 100 may be battery powered and may be charged by external electrical connection from an AC power source.
- the AC power source may be an AC power outlet located at the installation site, for example.
- the mobile patient bed 100 may operate on electrical power supplied from the battery.
- the mobile patient bed 100 may also be permanently connected to an AC power connection at the installation site for installations where the mobile patient bed is permanently positioned next to the laser system.
- the mobile patient bed 100 may also be temporarily connected to an AC connection at the installation site if the mobile patient bed battery becomes low on charge during a laser procedure, operating room surgical procedure, recovery period, etc.
- the mobile patient bed 100 may communicate status information to the laser system.
- the mobile patient bed 100 may send bed status, battery status, actuator positions, detected person on bed, etc. so that the laser system may display this data to a user.
- the laser system may be able to control operations of the mobile patient bed 100 (e.g., disallowing disconnection of the mobile patient bed 100 during a procedure).
- FIGS. 3A-3C show a mobile patient bed headrest 4 according to an embodiment of the invention.
- Headrest 4 may include a head support 305; side support structure 310; controls 315, 320, 325 (which may be a subset of controls 6); and guides 330 and/or shafts 335.
- the head support 305 and side support structure 310 may support a patient's head.
- the head support 305 may be moved and/or pivoted along guides 330 and/or shafts 335 in the Y pitch, roll, and/or yaw directions using controls 315, 320, 325 (and/or by control from the laser system when the bed 100 is coupled to the laser system).
- the head support 305 and/or side support structure 315 may be moved in a direction along the longitudinal axis of the bed 100 and in both axes perpendicular to the longitudinal axis independently of one another.
- the side support structure 315 may include side supports 340 and further controls 345 (which may be a subset of controls 6) for adjusting the side supports 340 to fit around a patient's head and/or pivoting the side supports 340.
- the head support 305 and/or side support structure 310 may be pivoted (e.g., +/- 5° roll and +/- 15° pitch, or some other degree of motion in other embodiments).
- FIGS. 4A-4B show mobile patient bed seat motors 101 according to an embodiment of the invention.
- separate seat motors 101 may be provided for each axis of movement to allow the mobile patient bed 100 to be precisely and accurately positioned with respect to a laser system.
- an X motor 101X, a Y motor 101Y, and a Z motor 101Z may be provided as shown.
- the bed 100 may be located by the laser system (e.g., via the laser system using Bluetooth triangulation and/or sensing reflective targets on the bed 100 and/or floor), and the bed 100 position may be finely adjusted in each of the X, Y, and Z directions separately and independently.
- FIG. 5 is a perspective view showing mobile patient bed control elements according to an embodiment of the invention.
- Some controls 6 may be foot-actuated controls located on a frame of the mobile patient bed 100.
- brake pedals 505 may be provided in multiple locations and may enable and/or disable total lock of brakes 12.
- a latching toggle switch 510 may toggle latching and/or control illumination on other controls 6.
- Z-axis pedals 515 may be provided in separate locations and may control movement of the bed 100 in the Z axis.
- FIG. 5 merely presents one possible arrangement for a subset of the controls 6 of the mobile patient bed 100.
- FIGS. 6A-6G show a mobile patient bed pendant 600 according to an embodiment of the invention.
- the pendant 600 may comprise a user interface 610 and may connect to the mobile patient bed 100 via a cable 620.
- the user interface 610 may include a front panel 612 with buttons that may be illuminated by light pipes in a printed circuit board 614.
- the printed circuit board 614 may register button presses and send data associated therewith to the mobile patient bed 100 via the cable 620.
- the printed circuit board 614 may receive power for illuminating the light pipes from the mobile patient bed 100 via the cable 620, as well.
- the user interface 610 may be housed in a housing 630.
- the housing 630 may include an open front panel 632 through which the buttons may protrude and a closed back panel 634.
- FIG. 6 merely presents one possible arrangement for a pendant 600 providing at least a subset of the controls 6 of the mobile patient bed 100.
- the mobile patient bed 100 may be selectively coupled to a system such as a laser system.
- a system such as a laser system.
- FIGS. 8 and 9 illustrate an example laser system. Those of ordinary skill in the art will appreciate that many other laser system configurations may be possible, and/or that the mobile patient bed 100 may be selectively coupled to other types of systems entirely.
- FIG. 8 shows a laser eye surgery system L2, in accordance with many embodiments, operable to form precise incisions in the cornea, in the lens capsule, and/or in the crystalline lens nucleus.
- the system L2 may include a main unit L4, a patient chair L6, a dual function footswitch L8, and a laser footswitch L10.
- the patient chair L6 may be a fixed chair or, in accordance with the systems and methods described herein, may be the mobile patient bed 100.
- the main unit L4 may include many primary subsystems of the system L2.
- externally visible subsystems may include a touch-screen control panel L12, a patient interface assembly L14, patient interface vacuum connections L16, a docking control keypad L18, a patient interface radio frequency identification (RFID) reader L20, external connections L22 (e.g., network, video output, footswitch, USB port, door interlock, and AC power), laser emission indicator L24, emergency laser stop button L26, key switch L28, and USB data ports L30.
- RFID radio frequency identification
- the patient chair L6 may include a base L32, a patient support bed L34, a headrest L36, a positioning mechanism, and a patient chair joystick control L38 disposed on the headrest L36.
- the positioning control mechanism may be coupled between the base L32 and the patient support bed L34 and headrest L36.
- the patient chair L6 may be configured to be adjusted and oriented in three axes (x, y, and z) using the patient chair joystick control L38.
- the headrest L36 and a restrain system (not shown, e.g., a restraint strap engaging the patient's forehead) may stabilize the patient's head during the procedure.
- the headrest L36 may include an adjustable neck support to provide patient comfort and to reduce patient head movement.
- the headrest L36 may be configured to be vertically adjustable to enable adjustment of the patient head position to provide patient comfort and to accommodate variation in patient head size.
- the patient chair L6 may allow for tilt articulation of the patient's legs, torso, and head using manual adjustments.
- the patient chair L6 may accommodate a patient load position, a suction ring capture position, and a patient treat position.
- the chair L6 In the patient load position, the chair L6 may be rotated out from under the main unit L4 with the patient chair back in an upright position and patient footrest in a lowered position.
- the suction ring capture position the chair may be rotated out from under the main unit L4 with the patient chair back in reclined position and patient footrest in raised position.
- the patient treat position the chair may be rotated under the main unit L4 with the patient chair back in reclined position and patient footrest in raised position.
- the patient chair L6 may be equipped with a "chair enable” feature to protect against unintended chair motion.
- the patient chair joystick L38 may be enabled in at least two ways. First, the patient chair joystick L38 may incorporate a "chair enable” button located on the top of the joystick. Control of the position of the patient chair L6 via the joystick L38 may be enabled by continuously pressing the "chair enable” button. Alternately, the left foot switch L40 of the dual function footswitch L8 may be continuously depressed to enable positional control of the patient chair L6 via the joystick L38.
- the patient control joystick L38 may be a proportional controller. For example, moving the joystick a small amount may be used to cause the chair to move slowly. Moving the joystick a large amount may be used to cause the chair to move faster. Holding the joystick at its maximum travel limit may be used to cause the chair to move at the maximum chair speed. The available chair speed may be reduced as the patient approaches the patient interface assembly L14.
- the emergency stop button L26 may be pushed to stop emission of all laser output, release vacuum that couples the patient to the system L2, and disable the patient chair 6.
- the stop button L26 may be located on the system front panel, next to the key switch L28.
- the key switch L28 may be used to enable the system L2. When in a standby position, the key may be removed and the system may be disabled. When in a ready position, the key may enable power to the system L2.
- the dual function footswitch L8 may be a dual footswitch assembly that may include the left foot switch L40 and a right foot switch L42.
- the left foot switch L40 may be the "chair enable” footswitch.
- the right footswitch L42 may be a "vacuum ON” footswitch that may enable vacuum to secure a liquid optics interface suction ring to the patient's eye.
- the laser footswitch L10 may be a shrouded footswitch that activates the treatment laser when depressed while the system is enabled.
- the system L2 may include external communication connections.
- the system L2 may include a network connection (e.g., an RJ45 network connection) for connecting the system L2 to a network.
- the network connection may be used to enable network printing of treatment reports, remote access to view system performance logs, and remote access to perform system diagnostics.
- the system L2 may include a video output port (e.g., HDMI) that may be used to output video of treatments performed by the system L2.
- the output video may be displayed on an external monitor for, for example, viewing by family members and/or training.
- the output video may also be recorded for, for example, archival purposes.
- the system L2 may include one or more data output ports (e.g., USB) to, for example, enable export of treatment reports to a data storage device.
- the treatments reports stored on the data storage device may then be accessed at a later time for any suitable purpose such as, for example, printing from an external computer in the case where the user without access to network based printing.
- FIG. 8 shows a simplified block diagram of the system L2 coupled with a patient eye L43.
- the patient eye L43 comprises a cornea, a lens, and an iris.
- the iris defines a pupil of the eye L43 that may be used for alignment of eye L43 with system L2.
- the system L2 may include a cutting laser subsystem L44, a ranging subsystem L46, an alignment guidance system L48, shared optics L50, a patient interface L52, control electronics L54, a control panel/GUI L56, user interface devices L58, and communication paths L60.
- the control electronics L54 may be operatively coupled via the communication paths L60 with the cutting laser subsystem 1L44, the ranging subsystem L46, the alignment guidance subsystem L48, the shared optics L50, the patient interface L52, the control panel/GUI L56, and the user interface devices L58.
- the cutting laser subsystem L44 may incorporate femtosecond (FS) laser technology.
- FS femtosecond
- a short duration (e.g., approximately 10-13 seconds in duration) laser pulse (with energy level in the micro joule range) may be delivered to a tightly focused point to disrupt tissue, thereby substantially lowering the energy level required as compared to the level required for ultrasound fragmentation of the lens nucleus and as compared to laser pulses having longer durations.
- the cutting laser subsystem L44 may produce laser pulses having a wavelength suitable to the configuration of the system L2.
- the system L2 may be configured to use a cutting laser subsystem L44 that produces laser pulses having a wavelength from 1020 nm to 1050 nm.
- the cutting laser subsystem L44 may have a diode-pumped solid-state configuration with a 1030 (+/- 5) nm center wavelength.
- the cutting laser subsystem L44 may include control and conditioning components.
- control components may include components such as a beam attenuator to control the energy of the laser pulse and the average power of the pulse train, a fixed aperture to control the cross-sectional spatial extent of the beam containing the laser pulses, one or more power monitors to monitor the flux and repetition rate of the beam train and therefore the energy of the laser pulses, and a shutter to allow/block transmission of the laser pulses.
- Such conditioning components may include an adjustable zoom assembly to adapt the beam containing the laser pulses to the characteristics of the system L2 and a fixed optical relay to transfer the laser pulses over a distance while accommodating laser pulse beam positional and/or directional variability, thereby providing increased tolerance for component variation.
- the ranging subsystem L46 may be configured to measure the spatial disposition of eye structures in three dimensions.
- the measured eye structures may include the anterior and posterior surfaces of the cornea, the anterior and posterior portions of the lens capsule, the iris, and the limbus.
- the ranging subsystem L46 may use optical coherence tomography (OCT) imaging.
- OCT optical coherence tomography
- the system L2 can be configured to use an OCT imaging system employing wavelengths from 780 nm to 970 nm.
- the ranging subsystem L46 may include an OCT imaging system that employs a broad spectrum of wavelengths from 810 nm to 850 nm.
- Such an OCT imaging system may employ a reference path length that is adjustable to adjust the effective depth in the eye of the OCT measurement, thereby allowing the measurement of system components including features of the patient interface that lie anterior to the cornea of the eye and structures of the eye that range in depth from the anterior surface of the cornea to the posterior portion of the lens capsule and beyond.
- the alignment guidance subsystem L48 may include a laser diode or gas laser that produces a laser beam used to align optical components of the system L2.
- the alignment guidance subsystem L48 may include LEDs or lasers that produce a fixation light to assist in aligning and stabilizing the patient's eye during docking and treatment.
- the alignment guidance subsystem L48 may include a laser or LED light source and a detector to monitor the alignment and stability of the actuators used to position the beam in X, Y, and Z.
- the alignment guidance subsystem L48 may include a video system that can be used to provide imaging of the patient's eye to facilitate docking of the patient's eye L43 to the patient interface L52.
- the imaging system provided by the video system may also be used to direct via the GUI the location of cuts.
- the imaging provided by the video system may additionally be used during the laser eye surgery procedure to monitor the progress of the procedure, to track movements of the patient's eye L43 during the procedure, and to measure the location and size of structures of the eye such as the pupil and/
- the shared optics 50 provides a common propagation path that is disposed between the patient interface 52 and each of the cutting laser subsystem 44, the ranging subsystem 46, and the alignment guidance subsystem 48.
- the shared optics 50 includes beam combiners to receive the emission from the respective subsystem (e.g., the cutting laser subsystem 44, and the alignment guidance subsystem 48) and redirect the emission along the common propagation path to the patient interface.
- the shared optics 50 includes an objective lens assembly that focuses each laser pulse into a focal point.
- the shared optics 50 includes scanning mechanisms operable to scan the respective emission in three dimensions.
- the shared optics can include an XY-scan mechanism(s) and a Z-scan mechanism.
- the XY-scan mechanism(s) can be used to scan the respective emission in two dimensions transverse to the propagation direction of the respective emission.
- the Z-scan mechanism can be used to vary the depth of the focal point within the eye 43.
- the scanning mechanisms are disposed between the laser diode and the objective lens such that the scanning mechanisms are used to scan the alignment laser beam produced by the laser diode.
- the video system is disposed between the scanning mechanisms and the objective lens such that the scanning mechanisms do not affect the image obtained by the video system.
- the patient interface L52 may be used to restrain the position of the patient's eye L43 relative to the system L2.
- the patient interface L52 may employ a suction ring that may be vacuum attached to the patient's eye L43.
- the suction ring may then be coupled with the patient interface L52, for example, using vacuum to secure the suction ring to the patient interface L52.
- the patient interface L52 may include an optically transmissive structure having a posterior surface that is displaced vertically from the anterior surface of the patient's cornea, and a region of a suitable liquid (e.g., a sterile buffered saline solution (BSS) such as Alcon BSS (Alcon Part Number 351-55005-1) or equivalent) may be disposed between and in contact with the posterior surface and the patient's cornea and may form part of a transmission path between the shared optics L50 and the patient's eye L43.
- the optically transmissive structure may comprise a lens L96 having one or more curved surfaces.
- the patient interface L22 may comprise an optically transmissive structure having one or more substantially flat surfaces such as a parallel plate or wedge.
- the patient interface lens may be disposable and may be replaced at any suitable interval, such as before each eye treatment.
- the control electronics L54 may control the operation of and may receive input from the cutting laser subsystem L44, the ranging subsystem L46, the alignment guidance subsystem L48, the patient interface L52, the control panel/GUI L56, and the user interface devices L58 via the communication paths L60.
- the communication paths L60 may be implemented in any suitable configuration, including any suitable shared or dedicated communication paths between the control electronics L54 and the respective system components.
- the control electronics L54 may include any suitable components, such as one or more processor, one or more field-programmable gate array (FPGA), and one or more memory storage devices. In many embodiments, the control electronics L54 may control the control panel/GUI L56 to provide for pre-procedure planning according to user specified treatment parameters as well as to provide user control over the laser eye surgery procedure.
- FPGA field-programmable gate array
- the control electronics L54 may comprise a processor/controller L55 (referred to herein as a processor) that may be used to perform calculations related to system operation and provide control signals to the various system elements.
- a computer readable medium L57 (also referred to as a database or a memory) may be coupled to the processor L55 in order to store data used by the processor and other system elements.
- the processor L55 may interact with the other components of the system as described more fully throughout the present specification and other documents referenced herein.
- the memory L57 may include a lookup table that can be utilized to control one or more components of the laser system as described herein.
- the processor L55 may be a general purpose microprocessor configured to execute instructions and data, such as a Pentium processor manufactured by the Intel Corporation of Santa Clara, California. It may also be an Application Specific Integrated Circuit (ASIC) that embodies at least part of the instructions for performing the method in accordance with the embodiments of the present disclosure in software, firmware and/or hardware. As an example, such processors may include dedicated circuitry, ASICs, combinatorial logic, other programmable processors, combinations thereof, and the like.
- ASIC Application Specific Integrated Circuit
- the memory L57 may be local or distributed as appropriate to the particular application.
- Memory L57 may include a number of memories including a main random access memory (RAM) for storage of instructions and data during program execution and a read only memory (ROM) in which fixed instructions are stored.
- RAM main random access memory
- ROM read only memory
- memory L57 may provide persistent (non- volatile) storage for program and data files, and may include a hard disk drive, flash memory, a floppy disk drive along with associated removable media, a Compact Disk Read Only Memory (CD-ROM) drive, an optical drive, removable media cartridges, and other like storage media.
- the user interface devices L58 may include any suitable user input device suitable to provide user input to the control electronics L54.
- the user interface devices L58 may include devices such as, for example, the dual function footswitch L8, the laser footswitch L10, the docking control keypad L18, the patient interface radio frequency identification (RFID) reader L20, the emergency laser stop button L26, the key switch L28, and the patient chair joystick control L38.
- RFID radio frequency identification
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Claims (18)
- Mobiles Patientenbett (100), um einen Patienten während eines medizinischen Eingriffs zwischen mindestens zwei Orten zu bewegen, wobei das mobile Patientenbett Folgendes umfasst:eine Kommunikationsvorrichtung (150), die dazu ausgelegt ist, das mobile Patientenbett selektiv mit mindestens einem medizinischen System zu koppeln;mindestens einen Prozessor, der ausgelegt ist zum:Empfangen eines Befehls eines medizinischen Systems über die Kommunikationsvorrichtung und Verarbeiten des Befehls des medizinischen Systems, wenn das mobile Patientenbett mit dem mindestens einen medizinischen System gekoppelt ist; undEmpfangen und Verarbeiten eines Benutzerbefehls, wenn das mobile Patientenbett nicht mit dem mindestens einen medizinischen System gekoppelt ist; undUnterlassen des Verarbeitens des Benutzerbefehls, wenn das mobile Patientenbett mit dem mindestens einen medizinischen System gekoppelt ist;einen Sitz (1); undmehrere Motoren (101X, 101Y, 101Z), die dazu ausgelegt sind, den Sitz entlang einer ersten im Bezug zum Bett in Längsrichtung verlaufenden Achse, einer zur ersten Achse im Wesentlichen senkrecht verlaufenden zweiten Achse und einer zur ersten und zweiten Achse im Wesentlichen senkrecht verlaufenden dritten Achse zu positionieren, wobei das Positionieren des Sitzes entlang der einzelnen Achsen jeweils unabhängig vom Positionieren der anderen Achsen stattfindet und wobei das Positionieren des Sitzes als Reaktion auf den verarbeiteten Befehl des medizinischen Systems oder den verarbeiteten Benutzerbefehl durchgeführt wird.
- Mobiles Patientenbett nach Anspruch 1, ferner eine Kopfstütze (4) umfassend, die dazu ausgelegt ist, um eine vierte Achse zu verschwenken, die im Wesentlichen parallel zur ersten Achse verläuft, und sich entlang der vierten Achse, einer im Wesentlichen senkrecht zur vierten Achse verlaufenden fünften Achse und einer im Wesentlichen zur vierten und fünften Achse senkrecht verlaufenden sechsten Achse zu bewegen, wobei das Positionieren der Kopfstütze entlang der einzelnen Achsen jeweils unabhängig vom Positionieren der anderen Achsen stattfindet.
- Mobiles Patientenbett nach einem der vorstehenden Ansprüche, wobei die Kommunikationsvorrichtung (150) einen Bluetooth-Sendeempfänger oder einen anderen drahtlosen Sendeempfänger umfasst.
- Mobiles Patientenbett nach einem der vorstehenden Ansprüche, ferner mindestens eine Benutzersteuerung (6, 10) umfassend, die dazu ausgelegt ist, den Benutzerbefehl an dem mindestens einen Prozessor einzugeben,
optional wobei die mindestens eine Benutzersteuerung eine Fernbedienung (600), einen Griff, ein Pedal oder eine Kombination davon umfasst. - Mobiles Patientenbett nach einem der vorstehenden Ansprüche, ferner einen Joystick (10) umfassend, der mit dem mindestens einen Prozessor gekoppelt ist und dazu ausgelegt ist, über die Kommunikationsvorrichtung an dem mindestens einen medizinischen System einen Benutzerbefehl einzugeben.
- Mobiles Patientenbett nach einem der vorstehenden Ansprüche, wobei das mobile Patientenbett an mindestens einem der Orte mit dem medizinischen System gekoppelt ist und an mindestens einem anderen Ort nicht mit dem medizinischen System gekoppelt ist.
- Mobiles Patientenbett nach einem der vorstehenden Ansprüche, wobei die mehreren Motoren dazu ausgelegt sind, den Sitz ein einer Trendelenburg-Lagerung zu positionieren.
- Mobiles Patientenbett nach einem der vorstehenden Ansprüche, wobei das medizinische System ein Augenlaseroperationssystem ist.
- Mobiles Patientenbett nach einem der vorstehenden Ansprüche, ferner mehrere Rollen (8) umfassend, wobei mindestens eine der Rollen arretierbar (12) ist, um zuzulassen, dass das mobile Patientenbett um eine Schwenkachse verschwenkt werden kann, vorzugsweise wobei:
das mobile Patientenbett ferner eine Bremse (12) umfasst, die dazu ausgelegt ist, mindestens eine der Rollen (8) davon abzuhalten, sich zu drehen; und/oder mindestens zwei der Rollen (8) richtungsarretierbar sind. - Mobiles Patientenbett nach einem der vorstehenden Ansprüche, ferner einen Fußstützenmotor (102), einen Trendelenburg-Motor, einen Kopfstützenmotor (104) und/oder einen Sitzsensor, der dazu ausgelegt ist, eine Person auf dem Sitz zu erkennen, umfassend.
- System (L2), Folgendes umfassend:mindestens ein mobiles Patientenbett (100) nach einem der vorstehenden Ansprüche; unddas medizinische System.
- System nach Anspruch 11, wobei das medizinische System dazu ausgelegt ist, einen Ort des mindestens einen mobilen Patientenbetts (100) über ein von der Kommunikationsvorrichtung (150) des mindestens einen mobilen Patientenbetts empfangenes Signal zu bestimmen, optional wobei:das medizinische System mehrere Empfänger umfasst, die dazu ausgelegt sind, das Signal zu empfangen; undBestimmen des Orts des mindestens einen mobilen Patientenbetts (100) das Durchführen einer Triangulation auf Grundlage des an jedem der mehreren Empfänger empfangenen Signals umfasst.
- System nach Anspruch 11 oder Anspruch 12, wobei mindestens einer der folgenden Punkte gilt:das medizinische System ist dazu ausgelegt, jedem mindestens einen mobilen Patientenbett (100) eine getrennte Identität zuzuweisen;die Kommunikationsvorrichtung (150) ist dazu ausgelegt, Statusinformationen an das medizinische System zu senden; unddas medizinische System ist dazu ausgelegt, den mindestens einen Prozessor über einen an die Kommunikationsvorrichtung gesendeten Befehl zu steuern.
- Verfahren zum Durchführen eines medizinischen Eingriffs, wobei das Verfahren Folgendes umfasst:Bewegen eines mobilen Patientenbetts (100) zwischen mindestens zwei Orten während eines medizinischen Eingriffs;Koppeln des mobilen Patientenbetts mit dem mindestens einen medizinischen System über die Kommunikationsvorrichtung (150) des mobilen Patientenbetts an mindestens einem der mindestens zwei Orte;Empfangen, mittels des mindestens einen Prozessors, eines Befehls des medizinischen Systems über die Kommunikationsvorrichtung und Verarbeiten, mittels des mindestens einen Prozessors, des Befehls des medizinischen Systems, wenn das mobile Patientenbett mit dem mindestens einen medizinischen System gekoppelt ist;Unterlassen, mittels des mindestens einen Prozessors, der Verarbeitung eines Benutzerbefehls, wenn das mobile Patientenbett mit dem mindestens einen medizinischen System gekoppelt ist;Entkoppeln des mobilen Patientenbetts von dem mindestens einen medizinischen System an mindestens einem anderen der mindestens zwei Orte;Empfangen und Verarbeiten, mittels des mindestens einen Prozessors, eines Benutzerbefehls, wenn das mobile Patientenbett nicht mit dem mindestens einen medizinischen System gekoppelt ist; undPositionieren eines Sitzes (1) des mobilen Patientenbetts entlang einer ersten im Bezug zum Bett in Längsrichtung verlaufenden Achse, einer zur ersten Achse im Wesentlichen senkrecht verlaufenden zweiten Achse und einer zur ersten und zweiten Achse im Wesentlichen senkrecht verlaufenden dritten Achse, mittels mehreren Motoren (101X, 101Y, 101Z) des mobilen Patientenbetts an mindestens einem der mindestens zwei Orte, wobei das Positionieren des Sitzes entlang der einzelnen Achsen jeweils unabhängig vom Positionieren der anderen Achsen stattfindet und wobei das Positionieren des Sitzes als Reaktion auf den verarbeiteten Befehl des medizinischen Systems oder den verarbeiteten Benutzerbefehl durchgeführt wird.
- Verfahren nach Anspruch 14, ferner umfassend das Positionieren einer Kopfstütze (4), die dazu ausgelegt ist, um eine vierte Achse zu verschwenken, die im Wesentlichen parallel zur ersten Achse verläuft, und sich entlang der vierten Achse, einer im Wesentlichen senkrecht zur vierten Achse verlaufenden fünften Achse und einer im Wesentlichen zur vierten und fünften Achse senkrecht verlaufenden sechsten Achse zu bewegen, an mindestens einem der mindestens zwei Orte, wobei das Positionieren der Kopfstütze entlang der einzelnen Achsen jeweils unabhängig vom Positionieren der anderen Achsen stattfindet.
- Verfahren nach Anspruch 14 oder Anspruch 15, wobei das Positionieren des Sitzes das Positionieren des Sitzes in eine Trendelenburg-Lagerung umfasst.
- Verfahren nach einem der Ansprüche 14 bis 16, wobei der medizinische Eingriff eine Augenlaseroperation ist.
- Verfahren nach einem der Ansprüche 14 bis 17, ferner mindestens einen der folgenden Punkte umfassend:Arretieren mindestens einer Rolle (8) des mobilen Patientenbetts an mindestens einem der zwei Orte und Verschwenken des mobilen Patientenbetts (100) um eine Schwenkachse der mindestens einen arretierten Rolle;Bestimmen, mittels des medizinischen Systems, eines Orts des mindestens einen mobilen Patientenbetts (100) über ein von der Kommunikationsvorrichtung (150) des mindestens einen mobilen Patientenbetts empfangenen Signals, wenn das mobile Patientenbett mit dem mindestens einen medizinischen System gekoppelt ist,optional wobei das Bestimmen des Orts des mindestens einen mobilen Patientenbetts (100) das Durchführen einer Triangulation auf Grundlage des an jedem der mehreren Empfänger des medizinischen Systems empfangenen Signals umfasst;jedem mindestens einen mobilen Patientenbett mittels des medizinischen Systems Zuweisen einer getrennten Identität, wenn das mobile Patientenbett mit dem mindestens einen medizinischen System gekoppelt ist;Erkennen einer Person auf dem Sitz (1) mittels eines Sitzsensors;Senden von Statusinformationen an das medizinische System mittels der Kommunikationsvorrichtung; undSteuern des mindestens einen Prozessors mittels des medizinischen Systems über einen an die Kommunikationsvorrichtung gesendeten Befehl.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/US2015/058662 WO2017078675A1 (en) | 2015-11-02 | 2015-11-02 | Mobile patient bed |
Publications (2)
Publication Number | Publication Date |
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EP3370675A1 EP3370675A1 (de) | 2018-09-12 |
EP3370675B1 true EP3370675B1 (de) | 2019-10-16 |
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EP15794748.2A Active EP3370675B1 (de) | 2015-11-02 | 2015-11-02 | Mobiles patientenbett |
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EP (1) | EP3370675B1 (de) |
CN (1) | CN108601695B (de) |
AU (1) | AU2015413611A1 (de) |
CA (1) | CA3003870A1 (de) |
WO (1) | WO2017078675A1 (de) |
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US20200268579A1 (en) * | 2019-02-26 | 2020-08-27 | Hill-Rom Services, Inc. | Bed interface for manual location |
CN110292491A (zh) * | 2019-07-11 | 2019-10-01 | 南通大学 | 一种避免交叉感染的多功能危重症患者电动床及其使用方法 |
EP4252731A1 (de) * | 2022-03-30 | 2023-10-04 | Baxter Medical Systems GmbH + Co. KG | Vorrichtung zur steuerung eines operationstisches |
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WO2012061406A2 (en) * | 2010-11-01 | 2012-05-10 | Rawls-Meehan Martin B | Adjustable bed controls |
US8336134B2 (en) * | 2011-02-03 | 2012-12-25 | Hill-Rom Services, Inc. | Bed with mobile lift docking |
US8584281B2 (en) * | 2011-04-07 | 2013-11-19 | Mizuho Orthopedic Systems, Inc | Surgery table having coordinated motion |
WO2013166390A1 (en) * | 2012-05-04 | 2013-11-07 | Bombardier Inc. | Seating arrangement convertible to a bunk bed |
DE102012215016B4 (de) * | 2012-08-23 | 2016-07-21 | Siemens Healthcare Gmbh | Patientenliege |
CN103126834B (zh) * | 2013-02-04 | 2015-04-15 | 陈殿生 | 具有旋转座椅和大小便处理装置的床椅一体化护理系统 |
CA3136577A1 (en) * | 2013-04-18 | 2014-10-23 | Amo Development, Llc | Corneal topography measurement and alignment of corneal surgical procedures |
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- 2015-11-02 EP EP15794748.2A patent/EP3370675B1/de active Active
- 2015-11-02 WO PCT/US2015/058662 patent/WO2017078675A1/en active Application Filing
- 2015-11-02 CA CA3003870A patent/CA3003870A1/en not_active Abandoned
- 2015-11-02 CN CN201580085635.9A patent/CN108601695B/zh active Active
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AU2015413611A1 (en) | 2018-05-17 |
CA3003870A1 (en) | 2017-05-11 |
EP3370675A1 (de) | 2018-09-12 |
CN108601695B (zh) | 2020-06-05 |
WO2017078675A1 (en) | 2017-05-11 |
CN108601695A (zh) | 2018-09-28 |
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