Intraoperative patient management system

Abstract

This system provides an intraoperative patient management system that can inform medical professionals of the degree of pressure ulcer risk to patients during surgery and raise awareness. [Solution] The intraoperative patient management system 1 is configured to display a cumulative pressure distribution diagram, which is calculated by accumulating the pressure distribution on the patient over time during surgery, on the pressure ulcer risk display unit 6. This allows medical personnel to be informed of the degree of pressure ulcer risk for the patient during surgery and to be alerted to the risk.

Description

Technical Field

[0001] The present invention relates to an intraoperative patient management system for managing the risk of intraoperative or postoperative decubitus ulcer development during surgery.

Background Art

[0002] Generally, during surgery, the patient is under general anesthesia on the operating table and is placed in the same position. There are problems such as the development of decubitus ulcers (bedsores) during or after surgery. This decubitus ulcer develops particularly when pressure is concentrated on the body surface of a specific part of the patient for a long time or when frictional force (shearing force) is applied to the body surface of a specific part of the patient. This frictional force occurs when the skin of a specific body surface of the body is dragged when moving the patient on the table.

[0003] And in order to suppress the development of decubitus ulcers, it is generally recommended to change the patient's position regularly (for example, every 2 hours, etc.) and to minimize the frictional force (shearing force) on the skin when moving the patient. Thus, currently, during surgery, there are no specific indicators (standards) for medical staff to suppress the risk of decubitus ulcer development in patients. Medical staff have no choice but to appropriately adjust the patient's position (posture), etc. before and during surgery in response to the risk of decubitus ulcer development, relying on the experience and intuition of medical staff.

[0004] For example, Patent Document 1 discloses an operating table operating device for a robotic operating table that moves a table for placing a patient by a multi-joint robotic arm, the device including an instruction receiving unit that receives an instruction from a user to move the table, and a display unit configured to display the elapsed time in the tilted posture when the table is tilted by the multi-joint robotic arm according to the movement instruction.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2019-209191 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The operating device for a surgical table described in Patent Document 1, as mentioned above, allows the medical professional operating the device to ensure that the patient placed on the table is not held in the same tilted position for an extended period of time. Therefore, even when the table is tilted to tilt the patient, the onset and worsening of pressure ulcers (bedsores) in the patient can be suppressed.

[0007] However, with the operating table control device described in Patent Document 1, even if medical personnel can take care to prevent the patient from being held in the same tilted position for a long period of time, it is unclear to what extent the patient's risk of developing pressure ulcers has increased. It is difficult to alert medical personnel to the increased risk of developing pressure ulcers in specific areas of the patient, and to reduce the patient's risk of developing pressure ulcers by changing the patient's posture or increasing the amount of cushioning material to distribute the pressure applied to those specific areas of the patient.

[0008] This invention has been made in view of the above, and aims to provide an intraoperative patient management system that can inform medical personnel of the degree of pressure ulcer risk to the patient during surgery and raise awareness of this risk. [Means for solving the problem]

[0009] As a means to solve the above problems, the invention described in claim 1 is an intraoperative patient management system for managing the risk of pressure ulcer development in a patient during surgery, characterized in that it displays the result of accumulating the distribution of body pressure on the patient over time during surgery on a pressure ulcer development risk display unit.

[0010] It should be noted that, conventionally, proposals have been made at academic conferences and other forums to prevent the development of pressure ulcers by detecting the pressure distribution applied to the patient's body surface in real time during surgery (hereinafter referred to as "pressure distribution to the patient"). However, as mentioned above, pressure ulcers develop when pressure is concentrated on a specific area of ​​the patient's body surface for a long period of time, so detecting the pressure distribution to the patient in real time during surgery is not very meaningful. Furthermore, in this proposal, the pressure distribution to the patient changes in real time due to factors such as the strength of the surgical approach from the surgeon and assistant to the patient, and changes in the position (posture) of the operating table and the patient's body position (posture). Therefore, even if medical professionals check the pressure distribution to the patient detected in real time, it is not easy to accurately determine whether the patient's risk of developing a pressure ulcer is increased.

[0011] In view of this, the invention of claim 1 displays the cumulative result (cumulative pressure distribution diagram) obtained by accumulating the pressure distribution on the patient detected at regular time intervals during surgery, for example, by a pressure distribution detection sheet, on a pressure ulcer risk display unit installed in the operating room. By visually inspecting this cumulative pressure distribution diagram for the patient, medical professionals can accurately determine whether the risk of developing a pressure ulcer is high at a specific site on the patient. If medical professionals determine that the risk of developing a pressure ulcer is high, they can take appropriate measures such as changing the position of the operating table or the patient's position, or increasing the amount of cushioning material around the specific site, to distribute the pressure on the patient.

[0012] The invention described in claim 2 is characterized in that, in the invention of claim 1, the result of accumulating the distribution of body pressure on the patient over time during the procedure is recorded.

[0013] In the invention of claim 2, for each surgery, personal data such as physical information including the surgical procedure, gender, age, weight, and height, as well as the presence or absence of underlying diseases and medical history, are pre-inputted, and the pressure distribution on the patient during the surgery is recorded and stored along with the cumulative result over time. Based on the stored data, the trend of the risk of developing pressure ulcers can be analyzed. Based on the analysis results, a threshold value of the cumulative pressure that increases the risk of developing pressure ulcers can be set for each surgery, and during the surgery, this threshold can be displayed on the pressure ulcer risk display unit, or a warning sound can be emitted if the threshold is exceeded, thereby alerting medical personnel.

[0014] The invention described in claim 3 is characterized in that, in the invention of claim 1, the pressure ulcer risk display unit also displays the results of detecting the distribution of body pressure on the patient in real time during surgery.

[0015] In the invention of claim 3, the results of detecting the pressure distribution on the patient in real time during surgery, that is, the pressure distribution on the patient detected at regular time intervals by, for example, a pressure distribution detection sheet material (a real-time pressure distribution map of the patient at that time), are also displayed. For example, if a medical professional determines that the risk of developing a pressure ulcer is high based on the accumulated pressure value on a specific part of the patient, they can quickly check whether the pressure on the patient has been distributed after taking measures such as changing the position of the operating table or the patient's body position, or increasing the amount of cushioning material around the specific part.

[0016] The invention described in claim 4 is characterized in that, in the invention of claim 1, the position of the operating table on which the patient is placed during surgery is constantly displayed and recorded on the pressure ulcer risk display unit.

[0017] In the invention of claim 4, the position of the operating table is constantly displayed on the pressure ulcer risk display unit. For example, if a medical professional determines that the risk of pressure ulcer development is high based on the accumulated cumulative body pressure value on a specific part of the patient, they can quickly change the position of the operating table while being aware of its current position. Furthermore, by recording and accumulating the position of the operating table along with the cumulative body pressure distribution on the patient over time during surgery, the position of the operating table can be included when analyzing the accumulated data. This allows for the analysis of the risk of pressure ulcer development on a specific part of the patient in relation to the table position, thus broadening the scope of the analysis results. [Effects of the Invention]

[0018] According to the intraoperative patient management system of the present invention, medical personnel can be informed of the degree of pressure ulcer risk to the patient during surgery and be alerted accordingly. [Brief explanation of the drawing]

[0019] [Figure 1] Figure 1 is a schematic diagram showing an intraoperative patient management system according to an embodiment of the present invention. [Figure 2] Figure 2 is a perspective view of the operating table on which the patient will be placed. [Figure 3] Figure 3 is a plan view of the operating table control panel installed on the operating table. [Figure 4] Figure 4 shows the pressure ulcer risk display unit of the intraoperative patient management system according to this embodiment, simultaneously displaying a real-time pressure distribution map, an accumulated pressure distribution map, and the operating table position information. [Figure 5] Figure 5 shows the cumulative body pressure distribution diagram and the operating table position information displayed over time in the pressure ulcer risk display section of the intraoperative patient management system according to this embodiment. [Figure 6] Figure 6 shows the pressure ulcer risk display unit of the intraoperative patient management system according to this embodiment, simultaneously displaying a real-time body pressure distribution map and the operating table position information.

Best Mode for Carrying Out the Invention

[0020] Hereinafter, embodiments for carrying out the present invention will be described in detail based on FIGS. 1 to 6. The intraoperative patient management system 1 according to an embodiment of the present invention manages the risk of developing pressure ulcers in a patient during surgery and alerts medical staff. Here, the medical staff are the staff in the operating room who are involved in the surgery of the day, corresponding to a plurality of surgeons (such as the operating surgeon and assistants), anesthesiologists, a plurality of nurses, and the like. Referring to FIG. 1, specifically, the intraoperative patient management system 1 according to the present embodiment includes a table position detection unit 3 that detects the position (posture) of the table 12 on the operating table 10 on which the patient is placed over time during surgery, a body pressure distribution detection sheet material 4 that detects the body pressure distribution on the patient on the table 12 at regular time intervals during surgery, a pressure ulcer onset risk acquisition unit 5 for acquiring the degree of the onset risk of the patient's pressure ulcer based on the body pressure distribution on the patient detected by the body pressure distribution detection sheet material 4, and a pressure ulcer onset risk display unit 6 for displaying the information acquired by the pressure ulcer onset risk acquisition unit 5.

[0021] Referring to FIG. 2, the operating table 10 has a function of freely changing the position of the table 12 on which the patient is placed and fixing it at an arbitrary position. The operating table 10 generally includes a table 12 on which the patient is placed, a support column 13 that supports the table 12, and a leg base 15 having casters 14 at the four corners. The longitudinal direction of the table in FIG. 12 coincides with the head-to-tail direction of the patient, and the width direction thereof coincides with the left-right direction of the patient. The table 12 is unitized by connecting, for example, a back-side table portion 17, a central table portion 18, and a leg-side table portion 19 that are arranged along the longitudinal direction. A plurality of mattresses 21, 21 having a predetermined thickness are detachably mounted on the table 12.

[0022] Referring to Figures 2 and 3, the table 12 of the operating table 10 can be adjusted and fixed in any position by a medical professional operating the operating table control panel 22, which will be described later. That is, the table 12 is configured to be able to move up and down as a whole, slide along its longitudinal direction (towards the patient's head and tail) and width direction (towards the patient's left and right), and be fixed in any position. Furthermore, the table 12 is configured to be able to rotate (also called vertically) as a whole around the upper end of the support column 16 when viewed from the side, and to rotate (also called horizontally) as a whole around the upper end of the support column 16 when viewed from the front, and be fixed in any position. In addition, when viewed from the side, the back table section 17, the central table section 18, and the leg table section 19 of the table 12 are each configured to be able to rotate independently relative to the horizontal plane (the floor of the operating room) and be fixed in any position. In addition, some models have a leg-side table section 19 that is divided into two parts along the width direction, each of which is rotatable relative to the horizontal plane and can be fixed in any position.

[0023] The operating table 10 is electrically connected to an operating table control panel 22, which is operated by medical personnel to change the position of the table 12. The operating table control panel 22 is electrically connected via communication means (not shown) to a control unit (not shown) that controls the drive of multiple cylinder devices and the like, which are provided on the operating table 10. The operating table control panel 22 has multiple operation buttons 25 and a display screen 26 on its front. Medical personnel can change the position (position) of the table 12 as needed by pressing the operation buttons 25 on the operating table control panel 22. The display screen 26 of the operating table control panel 22 displays the position information of the table 12 of the operating table 10 in real time.

[0024] Referring to Figures 2 and 3, the operating table control panel 22 incorporates a table position detection unit 3 that detects the position of the table 12 over time. The table position detection unit 3 is configured to detect the position of the table 12 over time based on the operation history of multiple operation buttons 25, the drive history of multiple cylinder devices in the operating table 10, and detection information obtained from various sensors such as encoders in the operating table 10. In this embodiment, the position of the table 12 refers to the position after operations including lifting, sliding, vertical, and horizontal movements of the table 12. As shown in Figure 1, the table position detection unit 3 is electrically connected to a pressure ulcer risk acquisition unit 5, which will be described later.

[0025] Referring to Figures 1 and 2, the body pressure distribution detection sheet material 4 can detect and visualize the body pressure on the patient on the table 12, i.e., the body pressure distribution (pressure distribution) on the patient. The body pressure distribution detection sheet material 4 can detect the body pressure distribution on the patient at regular time intervals. In this embodiment, the body pressure distribution detection sheet material 4 detects the body pressure distribution on the patient at 1-second intervals. The time interval detected by this body pressure distribution detection sheet material 4 can be changed as appropriate. The body pressure distribution detection sheet material 4 is composed of, for example, two half-body sheets. A full-body sheet may also be used. The body pressure distribution detection sheet material 4 is made of a material that transmits X-rays. The body pressure distribution detection sheet material 4 is made of a so-called silver-free material to transmit X-rays. The body pressure distribution detection sheet material 4 is detachably attached to the mattress 21 on the table 12 of the operating table 10. The body pressure distribution detection sheet material 4 is electrically connected to the pressure ulcer risk acquisition unit 5.

[0026] Referring to Figure 1, the pressure ulcer risk acquisition unit 5 comprises an accumulation unit 30 and a recording unit 31. The accumulation unit 30 accumulates the body pressure distribution from the body pressure distribution detection sheet material 4, that is, the body pressure distribution on the patient detected at regular time intervals by the body pressure distribution detection sheet material 4, over time. For each surgery, the recording unit 31 records and stores the table position information obtained from the table position detection unit 3, the real-time body pressure distribution which is the body pressure distribution on the patient detected at regular time intervals by the body pressure distribution detection sheet material 4, and the accumulated body pressure distribution of the patient obtained from the accumulation unit 30. In addition, for each surgery, the recording unit 31 is pre-entered with personal data including the surgical procedure, such as physical information such as gender, age, weight and height (BMI), the presence or absence of underlying diseases, and medical history.

[0027] The pressure ulcer risk display unit 6 is located in the operating room (not shown). The pressure ulcer risk display unit 6 is composed of a so-called monitor. Although not shown, the pressure ulcer risk display unit 6 may be located in the operating room near the anesthesia equipment, or it may be suspended above the operating table 10 together with the shadowless lamp, etc. Its location is not limited as long as it is in a place where medical personnel can easily see it. In this embodiment, the pressure ulcer risk display unit 6 is located in the operating room, but it may also be located in other places, such as the doctor's lounge, nurse's station, or educational facilities. The pressure ulcer risk display unit 6 is electrically connected to the pressure ulcer risk acquisition unit 5. Referring to Figure 4, the pressure ulcer risk display unit 6 simultaneously displays information from the pressure ulcer risk acquisition unit 5 during surgery, namely, a real-time pressure distribution map (left side of Figure 4), which is the pressure distribution on the patient detected at regular time intervals (the pressure distribution on the patient at that time), an accumulated pressure distribution map (center of Figure 4), which is the sum of the pressure distributions of the patient detected at regular time intervals, and the table position information of the operating table 10 at that time (right side of Figure 4).

[0028] Furthermore, referring to Figure 4, the pressure ulcer risk display unit 6 can also simultaneously display information from the recording unit 31 of the pressure ulcer risk acquisition unit 5 after surgery, namely, a real-time pressure distribution map (left side of Figure 6), which is the pressure distribution on the patient detected at regular time intervals for each surgery, an accumulated pressure distribution map (center left-right in Figure 6), which is the sum of the pressure distribution of the patient detected at regular time intervals, and table position information of the operating table 10 over time (right side of Figure 6). The real-time pressure distribution map is displayed two-dimensionally, with the level of pressure indicated by different colors. As the pressure increases, the display changes from blue to green to yellow to red (note that in Figures 4 and 6, color display is not possible, so the pressure increases as the color changes from white to black). In short, the real-time pressure distribution map shows that specific areas, displayed in red (the darkest black in the figure), have high pressure.

[0029] Furthermore, the cumulative body pressure distribution diagram is displayed as a three-dimensional bar graph. The cumulative body pressure distribution diagrams shown in Figure 5, displayed on the pressure ulcer risk display unit 6, are examples of the cumulative body pressure distribution diagrams recorded in the recording unit 31 of the pressure ulcer risk acquisition unit 5 after the end of surgery, displayed over time. Specifically, Figure 5(a) shows the cumulative body pressure distribution diagram 1 hour after the start of surgery, Figure 5(b) shows the cumulative body pressure distribution diagram 2 hours after the start of surgery, Figure 5(c) shows the cumulative body pressure distribution diagram 3 hours after the start of surgery, and Figure 5(d) shows the cumulative body pressure distribution diagram 4 hours after the start of surgery. During surgery, the cumulative body pressure distribution diagram displayed on the pressure ulcer risk display unit 6 pre-displays a threshold for cumulative body pressure values ​​that increase the risk of pressure ulcer development in the patient. When this threshold is exceeded, healthcare professionals can determine that the risk of developing a pressure ulcer is increasing for a specific area of ​​the patient.

[0030] Furthermore, referring to Figure 5, it can be seen that the cumulative body pressure values ​​at two locations on the patient increased over time and exceeded the threshold. Since healthcare professionals have some understanding of the relative positions of each part of the patient with respect to the body pressure distribution detection sheet 4, that is, the relative positions of each part of the patient between an arbitrary position on the body pressure distribution detection sheet 4 (an arbitrary position on the cumulative body pressure distribution diagram) and the patient, they can identify to some extent the areas of the patient where the risk of developing pressure ulcers is high by checking the cumulative body pressure distribution diagram.

[0031] As shown in Figure 4, the table position information of the operating table 10 displayed on the pressure ulcer risk display unit 6 is displayed, for example, from top to bottom, as the vertical tilt angle of the operating table 10, the horizontal tilt angle of the operating table 10, the backrest flexion angle of the operating table 10, the height adjustment amount of the operating table 10, the slide amount of the operating table 10 (longitudinal direction), the left leg rest flexion angle of the operating table 10, and the right leg rest flexion angle of the operating table 10. Furthermore, the pressure ulcer risk display unit 6 can also simultaneously display, as shown in Figure 5, the cumulative body pressure distribution diagram (right side of Figure 5) and the table position information of the operating table 10, such as the vertical tilt angle, horizontal tilt angle, backrest flexion angle, slide amount, height adjustment amount, left leg rest flexion angle, right leg rest flexion angle, etc. (left side of Figure 5), during and after surgery.

[0032] Furthermore, the pressure ulcer risk display unit 6 can simultaneously display, as shown in Figure 6, a real-time body pressure distribution map (right side of Figure 6) and table position information of the operating table 10, such as vertical tilt angle, lateral tilt angle, backrest flexion angle, slide amount, lifting amount, left leg rest flexion angle, right leg rest flexion angle, etc. (left side of Figure 6), both during and after surgery. In addition, although not shown in the illustration, the pressure ulcer risk display unit 6 can also independently display a real-time body pressure distribution map and a cumulative body pressure distribution map during and after surgery.

[0033] Next, the operation of the intraoperative patient management system 1 according to this embodiment will be explained. In the intraoperative patient management system 1 according to this embodiment, before surgery, personal data (as described above) of the patient to be operated on, including the surgical procedure to be used, is entered into the recording unit 31 of the pressure ulcer risk acquisition unit 5. Subsequently, the patient is placed on the body pressure distribution detection sheet material 4 of the operating table 10, and a medical professional operates the various operation buttons 25 of the operating table control panel 22 to move the table 12 and position the patient in the desired position. From this point onward, the position of the table 12 is detected over time by the table position detection unit 3, and this table position information is recorded in the recording unit 31 of the pressure ulcer risk acquisition unit 5 and displayed in the pressure ulcer risk display unit 6. When the patient is placed on the body pressure distribution detection sheet material 4 of the operating table 10 and takes the desired position, cushions or the like are appropriately inserted between the body pressure distribution detection sheet material 4 and the patient's body at positions where the risk of pressure ulcer development is expected to be high.

[0034] Almost simultaneously, the pressure distribution detection sheet 4 detects the patient's body pressure at regular time intervals, and this pressure information is input to the accumulation unit 30 and recording unit 31 of the pressure ulcer risk acquisition unit 5. Then, when the surgery begins, the accumulation unit 30 of the pressure ulcer risk acquisition unit 5 accumulates the body pressure distribution from the pressure distribution detection sheet 4, that is, the body pressure distribution on the patient detected by the pressure distribution detection sheet 4 at regular time intervals, over time. The pressure ulcer risk display unit 6 also displays a real-time body pressure distribution chart, which is the body pressure distribution on the patient detected at regular time intervals (the body pressure distribution on the patient at that time), an accumulated body pressure distribution chart, which is the accumulation of the patient's body pressure distribution detected at regular time intervals, and the table position information of the operating table 10 at that time. During surgery, the display content of the pressure ulcer risk display unit 6 can be selected from the above-mentioned multiple display contents by switching operations by medical personnel. For example, clicking "Cumulative Display" within the pressure ulcer risk display unit 6 shown in Figure 6 switches the display content of the pressure ulcer risk display unit 6 from a real-time pressure distribution diagram to a cumulative pressure distribution diagram. In addition, the recording unit 31 of the pressure ulcer risk acquisition unit 5 records the table position information of the operating table 10, the real-time pressure distribution, and the cumulative pressure distribution as time progresses during the surgery.

[0035] Then, during surgery, the medical professional checks the cumulative pressure distribution map displayed on the pressure ulcer risk display unit 6 and determines that the risk of developing a pressure ulcer is high in a specific area of ​​the patient when the cumulative pressure value on the patient exceeds a pre-displayed threshold for cumulative pressure value that increases the risk of developing a pressure ulcer. Subsequently, as described above, the medical professional checks the cumulative pressure distribution map and has a general understanding of which part of the patient's body is exceeding the threshold for cumulative pressure. They then take appropriate measures to distribute the pressure on the patient, such as changing the position of the operating table 12 or the patient's position, or increasing the amount of cushioning material around the area in question. Next, they determine whether the measures taken are appropriate by checking the real-time pressure distribution map displayed on the pressure ulcer risk display unit 6.

[0036] Furthermore, based on the data recorded and stored in the recording unit 31 of the pressure ulcer risk acquisition unit 5, including table position information of the operating table 10 over time, real-time and cumulative pressure distribution data over time, personal data, and the degree of pressure ulcer development (including redness) in patients post-operatively, the trend of pressure ulcer development can be analyzed in detail. Based on the analysis results, it is possible to accurately set a threshold for the cumulative pressure value that increases the risk of pressure ulcer development, particularly for each surgery. In addition to obtaining a threshold for the cumulative pressure value that increases the risk of pressure ulcer development, the analysis can also analyze causal relationships related to the development of pressure ulcers, such as the relative relationship between the patient's physical characteristics, including special surgical procedures (positions), and the cumulative pressure distribution, or the relative relationship between special table positions and the cumulative pressure distribution.

[0037] Furthermore, the intraoperative patient management system 1 according to this embodiment, as described above, includes, in particular, a body pressure distribution detection sheet material 4 that detects the body pressure on the patient on the table 12 during surgery at regular time intervals, a pressure ulcer risk acquisition unit 5 that acquires the degree of the patient's risk of developing a pressure ulcer based on the body pressure information from the body pressure distribution detection sheet material 4, and a pressure ulcer risk display unit 6 that displays the information acquired by the pressure ulcer risk acquisition unit 5. In addition, the accumulation unit 30 of the pressure ulcer risk acquisition unit 5 accumulates the body pressure distribution on the patient detected at regular time intervals by the body pressure distribution detection sheet material 4 over time, and the accumulated body pressure distribution diagram is displayed on the pressure ulcer risk display unit 6.

[0038] This allows healthcare professionals to visually inspect the cumulative pressure distribution map displayed on the pressure ulcer risk display unit 6, thereby confirming the degree of pressure ulcer risk for a specific area of ​​the patient, and consequently, raising awareness if that risk is high. In other words, by visually inspecting the cumulative pressure distribution map displayed on the pressure ulcer risk display unit 6, healthcare professionals can accurately determine whether or not the risk of pressure ulcer development is high for a specific area of ​​the patient.

[0039] Furthermore, if a healthcare professional determines that the cumulative body pressure on the patient exceeds a threshold and the risk of developing a pressure ulcer is high, they can take appropriate measures such as changing the position of the operating table 12 or the patient's position, or increasing the amount of cushioning material around the specific area, to distribute the body pressure on the patient. In short, the purpose of the intraoperative patient management system 1 according to this embodiment is to alert healthcare professionals during surgery when the cumulative body pressure on the patient exceeds a threshold and the risk of developing a pressure ulcer is high, and to distribute the cumulative body pressure across all parts of the patient (regardless of the location) so that it falls below the threshold through appropriate measures taken by the healthcare professional.

[0040] Furthermore, in the intraoperative patient management system 1 according to this embodiment, the accumulation unit 30 of the pressure ulcer risk acquisition unit 5 accumulates the pressure distribution on the patient detected at regular time intervals by the pressure distribution detection sheet material 4 over time, and records and stores the accumulated pressure distribution in the recording unit 31 of the pressure ulcer risk acquisition unit 5. This makes it possible to analyze the trend of pressure ulcer risk based on the recorded and stored accumulated pressure distribution data and personal data. Based on the results of the analysis, for each surgery, the accumulated pressure value that increases the risk of pressure ulcer development is set as a threshold, and this threshold is displayed on the pressure ulcer risk display unit 6, making it easy to communicate the risk of pressure ulcer development to medical professionals and raise awareness.

[0041] Furthermore, in the intraoperative patient management system 1 according to this embodiment, the pressure ulcer risk display unit 6 also displays a real-time pressure distribution map, which is the result of detecting the pressure distribution on the patient in real time, that is, the pressure distribution on the patient detected at regular time intervals by the pressure distribution detection sheet material 4 (the pressure distribution on the patient at that time). This allows medical professionals to quickly check whether the pressure on the patient has been distributed by the real-time pressure distribution map after determining that the risk of pressure ulcer development is high based on the accumulated pressure value on a specific part of the patient, by changing the position of the table 12 of the operating table 10 or the patient's position, or by taking measures such as increasing the amount of cushioning material around the specific part.

[0042] Furthermore, the position of the table 12 of the operating table 10 during surgery is constantly displayed on the pressure ulcer risk display unit 6 and recorded in the recording unit 31 of the pressure ulcer risk acquisition unit 5. For example, if a medical professional determines that a patient is at high risk of developing a pressure ulcer, they can quickly change the position of the table 12 of the operating table 10 while being aware of its current position. In addition, by recording and accumulating the position of the table 12 of the operating table 10, the position of the table 12 of the operating table 10 can be included when analyzing the accumulated data, allowing for an analysis of the pressure ulcer risk to the patient in relation to the position of the table 12, thus broadening the scope of the analysis results. [Explanation of symbols]

[0043] 1 Intraoperative patient management system, 3 Table position detection unit, 4 Pressure distribution detection sheet material, 5 Pressure ulcer risk acquisition unit, 6 Pressure ulcer risk display unit, 10 Operating table, 12 Table, 30 Accumulation unit, 31 Recording unit

Claims

1. An intraoperative patient management system for managing the risk of pressure ulcers in patients during surgery, An intraoperative patient management system characterized by displaying the cumulative result of the distribution of body pressure on the patient over time during surgery on a pressure ulcer risk display unit.

2. The intraoperative patient management system according to claim 1, characterized in that it records the cumulative result of the distribution of body pressure on the patient over time during the aforementioned surgery.

3. The intraoperative patient management system according to claim 1, characterized in that the pressure ulcer risk display unit also displays the results of real-time detection of the patient's body pressure distribution during surgery.

4. The intraoperative patient management system according to claim 1, characterized in that the position of the operating table on which the patient is placed during surgery is constantly displayed and recorded in the pressure ulcer risk display unit.

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