JP2020536641A - Patient monitoring system and patient monitoring method - Google Patents

Abstract

The patient monitoring system includes a patient support device. The patient support device comprises an intermediate frame. The intermediate frame may include a plurality of planks, each plank having two face sheets and a core layer disposed between the two face sheets. The load cell is arranged in the core layer between the two surface sheets and is configured to generate a signal according to the load supported by the intermediate frame. The control module receives a signal from the load cell and generates a signal to an output module such as a display that shows the caregiver the current load supported by the intermediate frame. [Selection diagram] Fig. 1

Description

The disclosure generally relates to patient monitoring systems and methods.

Patient support devices such as hospital beds, stretchers, cots, tables, wheelchairs, and chairs facilitate patient care. Patient monitoring systems are often equipped with equipment that assists the caregiver in real-time monitoring of patient information when the patient is supported by a patient support device. Real-time patient information obtained from patient monitoring systems will prove to be important for caregivers to promote a comfortable environment for their patients. Obtaining real-time patient information can be difficult for some patients who have difficulty moving with respect to the patient support device, such as those with debilitating illness or trauma.

Therefore, there is a need for a patient monitoring system designed to address one or more of the above issues.

According to the present disclosure, a patient monitoring system is provided. The patient monitoring system comprises multiple planks. Multiple load cells are connected to each plank. The plurality of load cells generate a first input signal according to the load applied to each plate to measure the weight of the patient. The one or more patient information sensors, which are different from the plurality of load cells, generate one or more second input signals according to the one or more patient parameters which are different from the patient's weight. A control module is connected to each of a plurality of load cells and one or more patient information sensors on the planks. The control module receives a first input signal and one or more second input signals, and generates one or more output signals in response to the first input signal and the second input signal. The output module is connected to the control module. The output module receives one or more output signals from the control module. The output module presents the caregiver with the patient's weight and one or more patient parameters that differ from the patient's weight.

It is a perspective view of the patient monitoring system provided with the patient support device. It is a perspective view of a patient monitoring system with a mattress removed. FIG. 3 is a perspective view of another embodiment of a patient monitoring system with the mattress removed. It is a perspective view of an alternative mattress. It is a top view of the intermediate frame of FIG. 2 with the surface sheet removed. It is an exploded view of the thick plate of FIG. 2 which shows the 1st surface sheet, the 2nd surface sheet, and the core layer arranged between the 1st surface sheet and the 2nd surface sheet. FIG. 6A is an explanatory view of the first support structure. FIG. 6B is an explanatory view of the second support structure. FIG. 6C is an explanatory view of the third support structure. FIG. 6D is an explanatory view of the fourth support structure. FIG. 6E is an explanatory view of the fifth support structure. FIG. 7A is an elevational view of a mattress supported on a support structure of one embodiment that includes a first pattern of vertical ribs and tilted ribs when a load is applied. FIG. 7B is an elevational view of a mattress supported on a support structure of another embodiment that includes a second pattern of vertical ribs and tilted ribs when a load is applied. FIG. 7C is an elevational view when a load is applied to a mattress supported on a support structure of another embodiment that includes a third pattern of vertical and inclined ribs. It is a top view of the plank of the intermediate frame from which the surface sheet was removed. FIG. 9A is a diagram showing one embodiment of a display of an output module showing the weight of a patient. FIG. 9B is a diagram showing another embodiment of the display of the output module showing the position of the patient on the patient support device. FIG. 9C is a diagram showing another embodiment of the display of the output module showing the transition of the body weight, the log of the turn (position change), and the report. It is a flowchart of a method of operating a patient monitoring system. FIG. 5 is a perspective view of another embodiment of a patient monitoring system comprising a patient support device comprising an intermediate frame with a removable X-ray cassette holder. FIG. 3 is a cross-sectional perspective view of one embodiment of a plank. It is sectional drawing of another embodiment of a plank.

In the drawings, the same reference numerals are used to indicate the same elements across a plurality of figures. The patient monitoring system 100 is shown in FIGS. 1 and 2. The patient monitoring system 100 uses a centralized communication system to collect, store, monitor, and output patient information. Detailed embodiments of the patient monitoring system 100 are disclosed herein, but the disclosed embodiments are merely exemplary. Therefore, the details of the particular structure and function disclosed herein are not to be construed as limiting.

The patient monitoring system 100 includes a patient support device 10. The patient support device 10 shown includes a hospital bed. However, in other embodiments, the patient support device 10 may include a cot, stretcher, table, wheelchair, chair, or similar device used for patient care. The patient support device 10 generally comprises a frame structure having a patient support deck 12 and a base 14. In the illustrated embodiment, the base 14 has a plurality of legs extending downward to support the patient support deck 12.

The patient support device 10 may include a headboard 18 adjacent to the cranial end of the patient support device 10. The patient support device may further include a footboard 19 adjacent to the foot end of the patient support device 10. The side rail 21 can be located between the headboard 18 and the footboard 19. The patient support device 10 includes an elevating mechanism (not shown) that lifts the patient support deck 12 and / or a joint mechanism that articulates one or more deck sections 12a, 12b, 12c, 12d of the patient support deck 12 (not shown). (Shown) can be provided to articulate one or more of the deck sections 12a, 12b, 12c, 12d of the patient support device 10 in various forms (eg, positions and / or orientations). can do. Generally, the base 14 comprises a moving system including wheels 16 and a braking system (not shown) that allows the operation and maneuverability of the patient support device 10.

In one embodiment, the system 100 provides a weight measurement module 101 that provides weight-related information when the patient is on the patient support device 10. Further, an electronic device 103, which will be described later, is attached to the patient support device 10 at the foot side end of the patient support device 10, and the reference associated with the patient support device 10 and / or the patient in order to track the weight of the patient. / Unique identifier / Unique code can be provided. The weight measurement module 101 is attached to the patient support device 10 and transmits the patient's weight information to a central information server via WiFi, Bluetooth, a cellular system, or any other communication mode along a data network or the like. It can be sent to 400 (see FIG. 2). The communicated information can be obtained with respect to that particular patient support device 10 or patient using a unique identifier for the patient support device 10. The weight measurement module uses a reference / unique identifier / unique code present in the patient support device 10 or any other available signal from the patient support device 10 to a health care facility (eg, using the patient support device 10). It has the ability to read or identify the patient support device 10 in the hospital). The weight measurement module 101 can send information to the central information server 400 even when the patient support device 10 is free, such as when the patient leaves the patient support device 10.

In one embodiment of the weight measurement module 101, an intermediate frame 201 is provided with a sensor S (further described below) and operably connected to the patient support deck 12 to weigh the patient. In some embodiments, when the deck sections 12a, 12b, 12c, 12d move (eg, bend), the sections of the intermediate frame 201 (hereinafter referred to as planks 201a, 201b, 201c, 201d) move as well. In other forms, the weight measurement module can be a seat or mattress with a built-in patient weight measurement module. For example, the weight measurement module can be built into the patient support deck 12, i.e., the mechanism of the intermediate frame 201 described herein replaces the deck sections 12a, 12b, 12c, 12d of the patient support deck 12. Each part of can be formed. The weight measurement module 101 is activated when the patient rides on the patient support device 10, and transmits information (for example, the weight of the patient and other patient information described later) via one or more communication modules to the central information server 400. And / or transmit to one or more electronic devices.

The portable electronic device 105 can also display the weight of the patient when requested via the input button I on the mobile phone, tablet, or the like. As a result, the caregiver may be able to remotely check the weight of one or more patients he or she is caring for. One or more cameras C may be provided to acquire one or more images of the patient support device 10 and / or the patient, and the control module 204 may affect weight measurement, extra pillows, bags. The image can be processed to see if other articles, such as the patient's brace, are also present on the patient support device 10. This ensures that the patient's accurate weight is measured, such as by issuing a warning if such additional articles are present. The system 100 can store the weight information locally and on the data cloud so that the patient's weight history can be easily obtained whenever needed. In addition, this information can be stored elsewhere or in a hospital or on a cloud server. The system 100 can also be tare (see the “Set to Zero” interface in FIG. 9C), which allows the caregiver to carry the weight associated with the extra article present on the patient support device as described above. Measured values can be excluded. In other words, the tare function allows the system 100 to separate the patient's weight from the extra material on the patient support device 10. In some examples, if the caregiver attempts to use the tare function while the patient is on the patient support device 10, the caregiver may be warned that the tare function is not available for the time being. For example, the control unit 204 can be programmed to disable the tare function if the weight reading is 50 lbs or more, 100 lbs or more, and so on.

As shown in FIGS. 1 to 2B, the intermediate frame 201 includes at least one planks 201a, 201b, 201c, 201d (also referred to as a section, board, or panel) and a head end frame 202. It is provided with a foot side end frame 203. In one embodiment, the head end frame 202 is fixed to the plank 201a and the foot end frame 203 is fixed to the plank 201d. The frames 202 and 203 can be fixed to the thick plates 201a and 201d by fasteners, welding and the like. The intermediate frame 201 is arranged between the patient support deck 12 and the mattress 20. In the illustrated embodiment, the intermediate frame 201 includes four planks 201a, 201b, 201c, 201d. It is assumed that the intermediate frame 201 may include three or less planks. It is also assumed that the intermediate frame 201 may include five or more planks. The planks 201a, 201b, 201c, 201d can be separate and independent planks, or can be connected to each other by connecting links, joints, or the like.

With reference to FIG. 5, each of the planks 201a, 201b, 201c, 201d can include a core layer 2013 disposed between the first surface sheet 2011 and the second surface sheet 2012. Surface sheets 2011, 2012 can be made from a material selected from one or more of metals, plastics, or reinforced plastics. If reinforced plastic is selected, the reinforced plastic can be reinforced with carbon fiber, aramid fiber, glass fiber, or hybrid fiber. The hybrid fiber can include either synthetic fiber or natural fiber, or a combination of synthetic fiber and natural fiber. The mattress 20 may include a top layer containing a foam material or other suitable material.

With reference to FIGS. 6A-6E, the support structure 2014 can be incorporated into the first surface sheet 2011, the second surface sheet 2012, and / or the core layer 2013. The support structure 2014 can have the effect of reducing the weight and / or cost of the first surface sheet 2011, the second surface sheet 2012, and / or the core layer 2013. The support structure 2014 can also reinforce the first surface sheet 2011, the second surface sheet 2012, and / or the core layer 2013 to increase the rigidity. For example, as shown in various examples of support structure 2014 shown in FIGS. 6A-6E, support structure 2014 includes additional ribs R, sloping walls W, and other structural elements. be able to. In addition, the support structure 2014 may be specific, such as honeycomb (see FIG. 6E), wavy, and / or layered, to effectively transfer the patient's load and allow the patient's weight to be measured. It can be arranged in a geometric shape.

With reference to FIGS. 7A-7C, the patient load 30 is divided into three components, including a normal load 30a, a tilt load 30b, and a shear load 30c. The shear load is a load force applied to the load plane when the load force acts in parallel with the load plane. The normal load is the maximum downward (compressive) load or force that can be applied to the machine element perpendicular to the load surface, such as the center of force, i.e. the center of gravity of the load located at the center of the load surface. The tilt load is the load applied to the load plane when the load force acts at some angle to the load plane. Various geometric shapes of the support structure 2014 are shown in FIGS. 7A-7C. Each of FIGS. 7A-7C shows different support structures 2014 (see solid and dashed lines) that help to effectively transfer the patient's load to the load cells 2015a, 2015b, 2015c, 2015d (see below). There is.

In one embodiment shown in FIG. 5, the planks 201a, 201b, 201c, 201d include a core layer 2013 and the core layer 2013 includes a support structure 2014. In this form, the support structure is a rigid material that is thicker than the surface sheets 2011, 2012. The core layer 2013 is attached to the first surface sheet 2011 and is arranged between the surface sheets 2011 and 2012. In other embodiments, the planks 201a, 201b, 201c, 201d may not include a core layer. Instead, the first surface sheet 2011 comprises a support structure 2014 and / or the support structure 2014 is integrally formed with the first surface sheet 2011.

In one form of intermediate frame 201 as shown in FIG. 4, the load cells 2015a, 2015b, 2015c, 2015d are arranged at each corner of the core layer 2013. In other embodiments, the load cells 2015a, 2015b, 2015c, 2015d may be deployed at each corner of the first surface sheet 2011, or may be connected to both the first surface sheet 2011 and the second surface sheet 2012. You may. The load cells 2015a, 2015b, 2015c, 2015d are connected to the control module 204 and generate a signal transmitted to the control module according to the load supported on the first surface sheet 2011. The core layer 2013 can be fixed between the first surface sheet 2011 and the second surface sheet 2012 by any fastener, including an adhesive or a mechanical fastener. The purpose of providing the support structure 2014 on the core layer 2013 and / or the surface sheets 2011, 2012 is to accurately measure the weight of all load components in multiple directions. Another purpose of providing the support structure 2014 on one or more of the core layers 2013 and / or the surface sheets 2011, 2012 is to increase the rigidity of the planks 201a, 201b, 201c, 201d and all loads are load cells 2015a, It is to ensure that it is transmitted to 2015b, 2015c, 2015d.

With reference to FIGS. 1, 2, 2B, and 4, the cranial end frame 202 and the foot end frame 203 act as protective barriers to the patient and the mattress 20 on the patient and patient support deck 12. Prevent direct contact. With reference to the embodiment shown in FIG. 2B, the plank side rails 24 are connected to the planks 201a, 201b, 201c, 201d and can function as a further protective barrier. The purpose of providing the frames 202, 203 and the plank side rails 24 is to accurately measure the weight of the patient. More specifically, the frames 202, 203 and the plate side rails 24 prevent the mattress 20 from rubbing against other components of the patient support device 10, such as the headboard 18, footboard 19, and side rails 21. The load of the mattress 20 and / or the patient's support on the mattress 20 as the load cells 2015a, 2015b, 2015c, 2015d generate an output signal corresponding to the load placed on the first surface sheet 2011. Reduce the chance of loads leaking from the calculation. This configuration is particularly advantageous when the mattress 20 includes an air mattress. For example, when the air mattress is inflated, the pressure from within the air mattress can cause the surface of the air mattress to come into contact with the headboard 18, footboard 19, and / or side rails 21 of the patient support device 10. This can cause the load to be transmitted to the headboard 18, footboard 19, and / or side rails 21 to give an inaccurate weight signal.

In some embodiments, the frames 202, 203 and plate side rails 24 are attached to a first surface sheet 2011 of the corresponding plate and extend upward from the first surface sheet 2011. In the illustrated form, the frames 202, 203 and the plank side rails 24 are attached to the sides of each plank and extend upward from there. In some cases, the frames 202, 203 and the plank side rails 24 may include the frames 202, 203 and planks when the planks 201a, 201b, 201c, 201d are placed on the deck sections 12a, 12b, 12c, 12d. The side rails 24 are attached to the planks so that they remain separated from the deck sections 12a, 12b, 12c, 12d. Although only two plank side rails 24 are shown in FIG. 2B, there may be more or fewer plank side rails 24, but one or more plank side rails 24 are planks. It should be understood that it may be present on each of 201a, 201b, 201c, 201d.

Although not shown in the figure, the planks 201a, 201b, 201c, 201d may be wired to each other and / or to the control unit 204 to communicate with each other. Further, it is assumed that the thick plates 201a, 201b, 201c, 201d and / or the control unit 204 may communicate with each other wirelessly.

As shown in FIG. 4, the plan view of the core layer 2013 is shown with the surface sheets 2011, 2012 removed for simplicity of explanation. The core layer 2013 includes a load cell grid 2016, and the core layer 2013 includes load cells 2015a, 2015b, 2015c, and 2015d located in the cells of the grid. For example, the plank 201a shows a grid of four cells, each of the load cells 2015a, 2015b, 2015c, 2015d being located in one of the cells. In the illustrated embodiment, each of the planks 201a, 201b, 201c, 201d is placed in each quadrant of each of the planks 201a, 201b, 201c, 201d, preferably in each corner, and any on the intermediate frame 201. It comprises at least one load cell 2015a, 2015b, 2015c, 2015d that detects or monitors the load in place. The load cell grid 2016 serves to determine the change in patient position on the intermediate frame 201. In other words, the control module 204 can determine which of the quadrants of the plates 201a, 201b, 201c, 201d is receiving the maximum signal, and the control module 204 can determine which plate 201a each. , 201b, 201c, 201d to determine which quadrant (s) the patient is located in, thereby determining the overall position of the patient on the intermediate frame 201. As shown in the embodiment shown in FIG. 4, the planks 201a, 201b, 201c, 201d can have various widths and lengths. Regardless of the difference in width and length of the plates 201a, 201b, 201c, 201d, the control module 204 receives signals from the load cells 2015a, 2015b, 2015c, 2015d of the plates 201a, 201b, 201c, 201d. Accordingly, signals can be generated indicating the patient's weight and the patient's position on the intermediate frame 201. The display of output module 206 shown in FIG. 9B shows one example of an output indicating the position of the patient on each plank.

FIG. 8 shows one arrangement of the load cells 2015a, 2015b, 2015c, 2015d in each of the planks 201a, 201b, 201c, 201d. The load cells 2015a, 2015b, 2015c, and 2015d are arranged at the respective corners of the planks 201a, 201b, 201c, and 201d that are wired or wirelessly linked to each other. Although four load cells 2015a, 2015b, 2015c, 2015d are shown, more or fewer load cells may be used in other embodiments. The signals from the load cells 2015a, 2015b, 2015c, 2015d can be processed by a processing unit PU capable of monitoring, processing, and controlling the signals from the load cells 2015a, 2015b, 2015c, 2015d. Further, each processing unit PU can communicate with the control module 204 by wire or wirelessly. Load cells 2015a, 2015b, 2015c, 2015d can measure pressure, weight, or mass. The processing unit PU is configured to generate a signal to the control module 204 according to the angular position of the plates 201a, 201b, 201c, 201d with respect to gravity, an inclinometer, an accelerometer, and / or another sensor. Etc. can be further provided with an angle sensor such as. The control module 204 is configured to receive a signal from the angle sensor. In one embodiment, the control module 204 can be configured to take into account the angular positions of the planks 201a, 201b, 201c, 201d as factors when calculating the weight of the patient. In another embodiment, the control module 204 can be configured not to calculate the patient's weight until the angular positions of the planks 201a, 201b, 201c, 201d are approximately horizontal to gravity.

As shown in one embodiment shown in FIGS. 8 and 12, load cells 2015a, 2015b, 2015c, 2015d include flat beam type load cells. It is envisioned that the load cells 2015a, 2015b, 2015c, 2015d may include other types of load cells that are designed to generate a load-dependent signal supported by the intermediate frame 201.

With reference to FIG. 12, one embodiment of the load cells 2015a, 2015b, 2015c, 2015d is shown in detail. The load cell 2015c includes a main body having a mounting portion 220 and a deformable portion 222. One or more strain gauges can be attached to the boundary between the attachment portion 220 of the main body and the deformable portion 222. The attachment portion 220 is coupled to the core layer 2013 (or may be attached directly to the first surface sheet 2011 in the absence of the core layer 2013). The deformable portion 222 extends from the mounting portion 220. The load cell 2015c further comprises a foot portion 224 coupled to a deformable portion 222. Holes 226 are formed in the second surface sheet 2012, and the foot portion 224 extends from the deformable portion 222 through the holes 226 and beyond the outer surface 228 of the second surface sheet 2012. The foot 224 can be coupled to or supported by patient support decks 12a, 12b, 12c, 12d or by patient support decks 12a, 12b, 12c, 12d. In this embodiment, the core layer 2013, the surface sheets 2011, 2012, and the mounting portion 220 of the load cell 2015c are integrally formed to form a rigid structure. When a load, eg, a patient, is applied to the plank 201a, the core layer 2013, the surface sheets 2011, 2012, and the attachment portion 220 are configured to move relative to the deformable portion 222 and the foot portion 224. More specifically, the deformable portion 222 is designed to deform and deflect with respect to the mounting portion 220, and one or more strain gauges are deformed between the deformable portion 222 and the mounting portion 220. , Generates one or more signals depending on the deflection. The control module 204 receives one or more signals from one or more strain gauges and obtains the load applied in response to deformation and deflection.

It is understood that in the above embodiment, the second surface sheet 2012 can be removed without compromising the function of the load cell 2015c, which functions as a protective cover and produces a signal that provides accurate weight measurement. Further, it is envisioned that the core layer 2013 can be removed and instead the mounting portion 220 can be directly coupled to the first surface sheet 2011. In such a configuration, the first surface sheet 2011 includes a support structure 2014 to impart rigidity to the first surface sheet 2011.

As shown in FIG. 13, one embodiment is shown in which both the first surface sheet 2011 and the second surface sheet 2012 employ a load cell 2015c. This embodiment does not have to include the core layer 2013. One or more strain gauges can be attached to the boundary between the attachment portion 220 of the main body of the load cell 2015c and the deformable portion 222. The mounting portion 220 is coupled (eg, fixed) to the first surface sheet 2011. The deformable portion 222 extends from the mounting portion 220. The deformable portion 222 is bonded (for example, fixed) to the second surface sheet 2012. Both the first surface sheet 2011 and the second surface sheet 2012 include a support structure 2014 that imparts rigidity to the surface sheets 2011 and 2012. The first surface sheet 2011 is separated from the second surface sheet 2012, and the first surface sheet 2011 and the second surface sheet 2012 can move toward each other when a load such as a patient is applied. The mounting portion 220 is configured to move with the first surface sheet 2011, and the deformable portion 222 is configured to move with the second surface sheet 2012. When a load is applied to the plank 201a, the first surface sheet 2011 and the mounting portion 220 are configured to move with respect to the second surface sheet 2012 and the deformable portion 222. More specifically, the deformable portion 222 is deformed and deflected with respect to the mounting portion 220 when the surface sheets 2011 and 2012 move toward each other, and one or more strain gauges are deformed. One or more signals are generated according to the deformation and deflection between the possible portion 222 and the mounting portion 220. The control module 204 receives one or more signals from one or more strain gauges and obtains the load applied in response to deformation and deflection.

The output module 206 is shown in FIGS. 9A and 9B and at the cranial and / or foot end of the patient support device 10 (see FIGS. 2 and 11), any of the patient support devices 10. The display unit DU is provided at a suitable location and / or at some distance from the patient support device 10 remotely linked to the patient support device 10. The display unit DU can be any console interface, LED display, LCD panel, or the like. In one embodiment, there is one display unit DU that shows patient information including patient vital signs such as respiratory pattern, fluid percentage, height, and temperature, body water content, decubitus grade, patient weight, and the like. And another display unit DU (see FIG. 9B) indicating the position of the patient on the patient support device 10, and a portable display unit DU of the user on a portable electronic device, such as a telephone or tablet (FIG. 2). See) exists.

The mattress 20 is mounted on the intermediate frame 201 so that the patient rests on it. The weight and movement of the patient lying on the patient support device 10 can be detected by the load cells 2015a, 2015b, 2015c, 2015d by the intermediate frame 201. In one embodiment, the mattress 20 is provided with an air-inflated cell to support the patient's body. FIG. 3 shows a mattress 20 provided with a pump 20b for inflating the cell and a body massager 20a. The pump 20b is provided to inflate the cell to prevent deep vein thrombosis in the patient, and the body massager 20a is provided to prevent pressure ulcers in the patient. The mattress 20 does not come into contact with the headboard 18, footboard 19, or side rail 21 of the patient support device 10, and the plate side of the head end frame 202, foot end frame 203, and / or intermediate frame 201. It is designed so that it does not move outside the boundary of the patient support device 10 determined by the rail 24. In the illustrated embodiment, the mattress 20 is provided with a patient information sensor S capable of detecting the body temperature and height of the patient, or other parameters of the patient as described herein.

FIG. 2 shows the components of the control module 204 and the input module 205 of the information measurement module. The information measurement module is provided on the intermediate frame 201 to monitor specific inputs / outputs / controls of the electronic device of the intermediate frame 201 for the desired operation, as well as operating conditions of the electronic element and additional patient support device conditions. to enable. The control module 204 monitors the current state of the operating parameters of the electronic element of the input module 205 and detects the possibility of a malfunction or error if a particular electronic element is not operating within the desired or predetermined range. A set of standard operating characteristics that provide means to the system 100 to evaluate the accumulated data and / or if there is a deviation from the current operating value of the electronic device (s). It allows you to generate an alarm and then send a command to an electronic device or other device to perform a default action (s). For example, if a reading from one of the load cells 2015a, 2015b, 2015c, 2015d is monitored and a heterogeneous load reading is detected, the system 100 will requery the load measurement component and the value will be It is possible to evaluate whether the reading was just an inaccurate reading. Each of the electronic devices associated with the intermediate frame 201 or the patient support device 10 can be monitored in this way.

The control module 204 acquires patient data from various sensors S in real time and sends the data to the system 100 in advance for one or more of its given parameters stored in the memory of the control module 204. Further perform the function of continuously or regularly monitoring different parameters of the patient by comparing with standard values. Patient parameters refer to various vital signs, or other patient information monitored by control module 204. The control module 204 can query the patient information sensor S for the current readings to be compared with the operating parameters, and periodic monitoring will be performed on the pre-sent data (also called predetermined data). Is executed against. For example, control module 204 can be programmed by various directed patient protocols, such as patient repositioning, reorientation, mobility, etc., such that changes are made over a predetermined time, such as every two hours. .. Control module 204 is also capable of comparing patient data before and after the indicated protocol. If the scheduled instructions are not executed or executed, the control module 204 can trigger an alert / alarm to the targeted surgeon or user. The patient information sensor S is provided on the mattress 20 or on one or more of the plates 201a, 201b, 201c, 201d, or on the mattress 20 and / or the plates 201a, 201b, 201c, 201d. Connected to or provided with one or more of them, various parameters of the patient can be detected. The sensor S can optionally be provided with various attachment mechanisms such as tape, adhesive, or other method of attaching a portion of the sensor S to the patient in order to obtain a particular reading. ..

In one embodiment, the control module 204 has the ability to calculate the patient's body fat using the bioimpedance vector analysis (BIVA) method via one or more of the patient information sensors S. The BIVA method can actually determine the electrical impedance, or resistance to the flow of electrical current through body tissue, and use them to estimate total body water content (TBW), which can be used to determine total body water content (TBW). By using it, the lean body mass can be estimated from the difference between the body weight and the body fat.

The control module 204 can detect water overload and dehydration in the body by one or more of the patient information sensors S. Dehydration is recognized as a factor affecting BIVA measurement because it causes an increase in the body's electrical resistance and is measured to underestimate the lean body mass of 5 kg, that is, overestimate body fat. There is.

One or more of the patient information sensors S are sent to the control module 204 according to the amount of water in a local area of the patient's body to predict the likelihood and severity of pressure ulcers. It can be configured to generate an input signal of. The control module 204 can be configured to generate a signal to be transmitted to the output module 206 in response to the signal received from the patient information sensor S. Next, the display of the output module 206 can display pressure ulcer information in response to a signal received from the control module 204 when the humidity sensor S detects a humidity exceeding the threshold value.

Further, the control module 204 monitors the patient's breathing pattern by one or more of the patient information sensors S, and if the patient's breathing pattern is irregular and / or is pre-sent to the system 100 to control. It has the ability to generate an alarm when the standard value stored in module 204 is exceeded.

In addition to the features described above, the control module 204 can calculate the patient's body mass index (BMI) using the patient's height, thereby allowing the system 100 to risk the patient's illness that can result from overweight or obesity. Can be predicted.

In one embodiment, the control module 204 initializes or calibrates the operation of each of the electronic devices, such as the actuator and / or the patient information sensor S, which provides the desired level of accuracy and desired functionality. It can be provided to the patient support device 10.

In one embodiment, the control module 204 can provide control of the function of the patient support device 10 while further ensuring that the procedure required for the patient can be performed and is safe. it can. In this scenario, the control module 204 can evaluate the current state of the patient support device 10 and determine if the selected function is possible. The assessment of the required function is established based on the patient's current treatment.

In one embodiment, the control module 204 is designed using the interface-controller model architecture. The user interface can provide user access to the functionality of the patient support device 10 and can provide an inquiry or notification system that can provide access to information on the patient support device and / or information about the patient. The term "user" as used herein refers to a person who has access to real-time patient data, including nursing staff, doctors, surgeons, and / or other qualified personnel. The user interface can include a touch screen user interface, machine buttons, gesture sensors, etc. for receiving input from the user and generating the corresponding input signal received by the control module 204.

The input module 205 shown in FIG. 2 includes a memory, a patient information sensor S (including the sensor S of the mattress 20), for example, an infrared sensor, a light reflection sensor, a humidity sensor, an impedance sensor, a force sensor, a temperature sensor, and a camera. , Scanner, vital sign monitoring sensor (eg, intelligent sensor with processor capable of measuring and recording important vital signs (heart rate, breath rate, etc.) or any measurement module), height to detect patient height It is equipped with a sensor (for example, optical type, infrared type, ultrasonic type) and the like.

Another example of the patient information sensor S is a flexible test camera 205a provided on one or more of the planks (only one plank 201b is shown for illustration) that detects the condition of the patient's blood vessels. is there. System 100 is capable of providing a picture of the area of the pressure ulcer using the flexible test camera 205a.

In the embodiment shown in FIG. 2, one or more cameras C are located at either the cranial end or the foot end of the patient support device 10 or at some distance from the patient support device 10. Can be provided in. One or more cameras Ca can be oriented in all directions to provide constant visual communication between the caregiver and the patient.

In one embodiment shown in FIG. 11, the X-ray image cassette holder 208 is provided in the X-ray slot 207 of the plate 201a and is arranged in the X-ray image cassette holder 208. To obtain an X-ray image of the patient using. The X-ray image cassette holder 208 can be in the form of a sliding drawer. In the illustrated embodiment, only one thick plate 201a is provided with an X-ray slot 207 for accommodating the X-ray image cassette holder 208. In another embodiment, one or more of the planks 201a, 201b, 201c, 201d is provided with an X-ray slot for accommodating the X-ray image cassette holder. In one embodiment, the core layer 2013 of the plank 201a is provided with an X-ray slot 207. In another embodiment, the assembly of the surface sheets 2011, 2012 and the core layer 2013 is provided with an X-ray slot 207. The X-ray image cassette holder 208 is movable in the engaging position and the engaging / disengaging position. At the engaging position, the X-ray slot 207 accommodates the X-ray image cassette holder 208 in the X-ray slot 207. In the disengaged position, the X-ray image cassette holder 208 extends out of the patient support device 10. More specifically, in the disengaged position, the caregiver can disconnect the X-ray image cassette holder 208 from the patient support device 10 and carry the X-ray image cassette holder 208 away from the patient support device 10. Can be done. The movement of the X-ray image cassette holder 208 between the engaging position and the engaging and disengaging position is performed independently of the load supported on the intermediate frame 201. In other words, the X-ray image cassette holder 208 can be moved to the engaging and disengaging positions regardless of whether the patient is supported by the intermediate frame 201. In this method, the caregiver does not need to move the patient to place the X-ray image cassette holder 208. In some examples, this feature can eliminate the need for multiple managers during radiography. Furthermore, by reducing the movement of the patient during X-ray photography, the risk of drainage, IV, etc. being extubated or dropped from the patient can be reduced.

The input module 205 connected to the control module 204 and the input module 205 can be linked to the network by any kind of known serial communication network. The control module 204 and the input module 205 can also be wireless based on various wireless communication networks such as Bluetooth communication, Zigbee communication, RF (radio frequency field propagation) communication, infrared communication, ultrasonic communication and the like. Further, the control module 204 and / or the input module 205 can communicate with devices other than the patient support device 10. The control module 204 and / or the input module 205 may include an antenna that communicates with and controls the function of another device by wireless communication or wired communication. In the illustrated embodiment, the patient support device 10 includes an intermediate frame 201 and also detects and detects the state of the functional components of the patient support device 10, the patient's vital signs, skin moisture, body fat, body temperature, etc. 1 It includes one or more patient information sensors S or detectors. For example, the sensor or detector can be a properly designed load sensor, pressure sensor, temperature sensor, or any other type of sensor or detector suitable for integration into the patient support device 10. .. Each of these sensors or detectors can be configured to evaluate the desired information associated with the person being supported or the patient support device 10 itself. Further, in one form of the intermediate frame 201, each of the planks 201a, 201b, 201c, 201d has a processor integrated into the planks 201a, 201b, 201c, 201d to improve air circulation. And built-in connected to the processing unit PU and / or the control module 204 and controlled by the processing unit PU and / or the control module 204 to reduce the heating of the planks 201a, 201b, 201c, 201d due to the electronic device. A fan F (see FIG. 8) is also provided. The input module 205 may further include a translator TL, a speaker SP, and / or a microphone MP to improve communication between the user and the patient.

The system 100 can include definitions or descriptions of operating parameters of the patient support device, such as desired operating conditions in the form of virtual machine models, databases, and the like. The system 100 can also read information from the model or database, thereby making it possible to check whether the system 100 is functioning in the desired state.

In one embodiment, the control module 204 is arranged so that the central processing device (CPU) of the control module 204 is installed in the intermediate frame 201, and the patient information sensor S (accumulated data) and user input (in the case of a plurality of cases). All data from (also) is acquired, and based on that information, a program in System 100 will send signals to various electronic devices to determine and / or adjust for deviations in the data. ing.

The control module 204 includes one or more processors, a microprocessor, a single integrated circuit (IC), a memory, a peripheral interface, etc., which can be installed in the intermediate frame 201, and includes a microcontroller, a sensor, a memory, and the like. Data can be sent to and from small peripheral devices. Upon detecting a defect or error, the control module 204 activates one or more alarms, which may be visual, auditory, tactile, or other forms of defect indication.

The patient's location can be graphically displayed at the remote monitoring station RMS (see Figure 2), in which case the location should be displayed in either a color-coded location map or a patient image format indicating the location. Can be done. In one embodiment, the position of the patient can be used to determine when the patient has left the patient support device 10 and an appropriate alarm will be given if the patient is about to fall or is in some improper position. to start.

In one embodiment shown in FIG. 9C, information on current body weight, changes from previously recorded body weight, time at current turning position, and pressure ulcer position is displayed. In addition, the user can access data such as weight transitions, turn logs, and pressure ulcer reports using touch-selective buttons (eg, on the touch screen) as shown. Weight transitions can display changes in a patient's weight over a predetermined duration or since the caregiver began recording the weight of a given patient. The turn log can display a turn history that includes a time at each turn position (eg, left or right), a non-turn time, or a history of turn information for any suitable patient. The pressure ulcer reporting feature allows the caregiver to select additional pressure ulcer locations on the patient's graphic display via user input (eg, touch screen input), reports the pressure ulcer location, and reports the pressure ulcer location to the network. Can be saved. A pressure ulcer label (eg, a circle) can be added to the patient's graphic display on a display as shown.

In one embodiment, a translator TL, a speaker SP, and a microphone MP can also be provided as components of the output module 206. To reduce patient anxiety, the music player may be provided in the intermediate frame 201 as part of the output module 206, or elsewhere on the patient support device 10.

In one embodiment, the output module 206 has security features that ensure that only qualified personnel have access to the output module 206, thereby preventing abuse of the output module 206. In one embodiment, the output module 206 comprises a digital recognition system that allows only authorized users to operate the output module 206. Recognition can be performed based on a fingerprint, an iris pattern, or the like. The output module 206 may include an antenna that communicates with the function of another device and controls the function by wireless communication or wired communication. The output module 206 is linked to the patient support device 10, the control module 204, and / or the input module 205 by Bluetooth communication, RF (radio frequency field propagation) communication, infrared communication, ultrasonic communication, wired communication, and the like. Further, the output module 206 can communicate with a device other than the patient support device 10. The input module 206 may include an antenna that communicates with the function of another device and controls the function by wireless communication or wired communication.

In addition to providing the algorithms needed to control and monitor the functionality of the system 100, the software operational by the control module 204 is a graphical user interface (GUI) that organizes the various functions of the patient support device 10. Can be provided. The GUI can display a set of symbols such as "icons" and buttons for the operation of a particular function, eg, a patient support device, in any arrangement. The GUI can be configured so that the operation of each function is easy for the nursing staff to understand. Examples of functions that can be operated or monitored from the display unit DU of the output module 206 are, for example, patient weight, device operation, patient operation, alarm, withdrawal and decubitus history, diagnosis and the like. The actual screen display and menu of the touch screen for a particular patient support device is determined by the function of the patient support device and the needs of the operator.

The patient and / or patient support device 10 communicates centrally, such as, but not limited to, a bar code attached to the foot end of the patient support device 10, a unique code including a QR code®, and the like. Can be provided with a reference or a unique identifier to be used, which is an arbitrary barcode for capturing and reading patient information, information on the patient support device 10, etc. while the patient is on the patient support device 10. By a reader, or point of scale scanner or camera, or by any signal strength or radio emitter, via Bluetooth, WiFi, and any radio communication means such as radio frequency (RF) communication, infrared communication, etc. Can be read. The reference / unique identifier can be used to track patient information on or near the patient support device 10. The reference / unique identifier can be stored and transmitted from a radio emitter such as an electronic device 103 that can be an RFID tag.

The central information server 400 links the data to a network (eg, a hospital network) to remotely manage the information in the patient and / or patient support device 10 so that the user can access the data remotely. It has a server and a storage device. In one embodiment, the intermediate frame 201 wirelessly communicates with the hospital network and transmits data from the patient and / or patient support device 10 to the hospital network. The data stored or transmitted can include any information about the patient, such as the patient's test results, medical history, vital signs information, weight, height, and the like. By linking the data to a hospital network server, it is possible to provide remote access to the data by one or more users. Further, if desired, software and operating parameter updates can be provided to the control module 204, input module 205, output module 206 and the like. Linking the data to the network enables centralized patient management and monitoring of patient support devices to help provide more efficient patient care.

Referring to FIG. 10, patient information can be transmitted by the patient support device 10 to a remote station located on the hospital network by wire or wirelessly, where the stored data and / or received information is processed. And configure or control the patient support device 10 or various other systems. In one embodiment, the remote monitoring station RMS is located at the central nurse station within the health care facility and is implemented on the workstation used at the central nurse station. The workstation may be equipped with software for manipulating data received from various systems or patient support devices 10. The workstation is configured to receive data from control module 204, input module 205, and / or electronic device 103, send a reference / unique identifier, or send data back to modules 204, 205, 206. .. The workstation can be equipped with multiple monitors / screens to help the caregiver compare and cross-reference the information acquired through the load cell and patient information sensor with the information stored on the network.

It should be noted that in many of the figures described herein, certain components of the patient monitoring system 100 have been removed for convenience of description and for ease of description.

Although some configurations have been discussed in the above description, the configurations discussed herein are neither exhaustive nor intended to limit the invention to any particular form. The terms used are intended by nature as descriptive terms, not by limitation. Many modified and modified forms are possible in the light of the above teachings, and the present invention can be practiced differently from those specifically described.

Claims (26)

With multiple planks,
A plurality of load cells connected to each plate and generating a first input signal according to the load applied to each plate to measure the patient's weight.
One or more patient information sensors different from the plurality of load cells that generate one or more second input signals according to one or more patient parameters different from the patient's weight.
It is connected to the plurality of load cells of each plank and the one or more patient information sensors, receives the first input signal and the one or more second input signals, and receives the first input signal. And a control module that generates one or more output signals in response to the second input signal.
An output module that is connected to the control module, receives the one or more output signals from the control module, and indicates to the caregiver the weight of the patient and one or more patient parameters that are different from the weight of the patient. Patient monitoring system equipped with. The patient monitoring system according to claim 1, wherein each of the plurality of planks comprises one or more of metal, plastic, and reinforced plastic. The patient monitoring system according to claim 2, wherein the reinforced plastic contains one or more of carbon fibers, aramid fibers, glass fibers, and hybrid fibers. The patient monitoring system according to any one of claims 1 to 3, wherein each of the plurality of planks includes a support structure that imparts rigidity to the plurality of planks. At least one of the plurality of planks comprises a first surface sheet configured to face the patient and a second surface sheet on the opposite side of the first surface sheet. Prepare,
At least one of the plurality of planks further comprises a core layer disposed between the first surface sheet and the second surface sheet.
The core layer and one or more of the first surface sheet and the second surface sheet include the support structure.
The patient monitoring system according to claim 4, wherein the plurality of load cells for at least one of the plurality of planks are attached to one of the core layer and the first surface sheet. At least one of the plurality of planks comprises a first surface sheet configured to face the patient and a second surface sheet opposite the first surface sheet. The first surface sheet and the second surface sheet include the support structure, and the plurality of load cells for at least one of the plurality of planks are the first surface sheet and the said. The patient monitoring system according to claim 4, which is attached to both of the second surface sheets. The patient monitoring system according to any one of claims 4 to 6, wherein the support structure has ribs. Claims 4-7, wherein at least a portion of the support structure comprises one or more of a foam material, a wavy structure, a honeycomb structure, and a structure having ribs arranged between two substantially flat panels. The patient monitoring system according to any one item. The plurality of load cells for each of the plurality of planks are the first input signals depending on the normal load, the shear load, and the tilt load transmitted from one of the surface sheets to the plurality of load cells. The patient monitoring system according to any one of claims 1 to 8, wherein the patient monitoring system is generated. The patient monitoring system according to any one of claims 1 to 9, wherein the one or more patient information sensors generate a signal according to a patient's vital signs. The one or more patient information sensors are one of a humidity sensor, an impedance sensor, a pressure sensor, a temperature sensor, an image sensor, an infrared sensor, a light reflection sensor, a force sensor, a heart rate sensor, a breathing sensor, and an ultrasonic sensor. The patient monitoring system according to any one of claims 1 to 10, comprising one or more. Claim 1 further comprising a reference connected to the control module for tracking patient information including the weight of the patient, one or more patient parameters different from the weight, and at least one of the information of the patient support device. The patient monitoring system according to any one of 1 to 11. The patient monitoring system of claim 12, wherein the reference comprises a unique identifier selected from one of a barcode, a quick response (QR) code, and a radio frequency identification (RFID) tag. Further comprising a central information server connected to the reference, the central information server stores the tracked patient information and stores the tracked patient information in a hospital network in order to remotely manage the patient information. The patient monitoring system according to claim 12 or 13, comprising one or more of a server and a storage device linked to. The output module includes one or more display devices configured to display the weight of the patient and the position of the patient on the plurality of planks in response to the output signal received from the control module. The patient monitoring system according to any one of claims 1 to 14. The patient monitoring system according to any one of claims 1 to 15, wherein the output module includes one or more of a microphone, a translator, and a speaker. 5. An X-ray image cassette holder for acquiring an X-ray image of a patient is further provided, and one or more of the plurality of planks is provided with a slot for accommodating the X-ray image cassette holder. Or the patient monitoring system according to 6. The slot is provided between the first surface sheet and the second surface sheet, the X-ray image cassette holder is movable to an engaging position and an engaging / disengaging position, and the slot is the patient. The patient monitoring system according to claim 17, wherein the X-ray image cassette holder can be moved to the engaging position and the engaging / disengaging position when the X-ray image cassette holder is supported by the plurality of planks. Further comprising a mattress disposed on the plurality of planks and configured to intervene between the patient and the plurality of planks, the mattress is configured to face the patient. The patient monitoring system according to any one of claims 1 to 18, further comprising an upper layer, wherein the top layer further comprises one or more of a body massager and a pump for preventing deep vein thrombosis. .. The patient monitoring according to any one of claims 1 to 19, wherein the one or more patient information sensors include an impedance sensor that generates a signal to the control module according to the amount of fluid in the patient's body. system. The patient according to claim 20, wherein the control module receives the signal from the impedance sensor and generates a signal to transmit at least one of moisture overload and dehydration to the output module indicating the caregiver. Monitoring system. The one or more patient information sensors include a humidity sensor, which controls according to the amount of water in a local area of the patient's body to predict the likelihood and severity of decubitus. The patient monitoring system according to any one of claims 1 to 21, which produces a signal transmitted to the module. The output module comprises a display, the control module generates a signal transmitted to the output module in response to the signal received from the humidity sensor, and the display responds to the signal received from the control module. 22. The patient monitoring system according to claim 22, which displays decubitus information. The patient monitoring system according to any one of claims 1 to 23, wherein the output module includes an alarm that warns the caregiver in response to a signal received from the control module. The one or more patient information sensors include a sensor that generates a signal according to the patient's breathing pattern, the control module receives the signal, and the output if the breathing pattern is irregular. 24. The patient monitoring system of claim 24, which generates a signal to the module that triggers the alarm. Further comprising at least one of a cranial end frame, a foot end frame, and a plank side rail connected to one or more of the plurality of planks to aid in accurate weight reading. The patient monitoring system according to any one of claims 1 to 25.