JP5647049B2 - Medical treatment equipment - Google Patents

Description

  The present invention relates to a medical medical device provided with a medical table.

  Conventionally, in the medical field such as dentistry, a surgeon performs examinations and treatments by supporting a patient on a medical table. In addition, the medical table used in the medical field such as dentistry is configured as a seat, and the backrest that supports the patient's back during the medical treatment tilts backward, so that the patient is placed from the sitting position to the supine position. Can be supported. Such a medical table is disclosed as a chair in Patent Document 1.

JP 2008-200509 A

  By the way, a patient sitting on a chair disclosed in Patent Document 1 can take a posture that requires attention. For example, a child or the like throws his / her limbs to the outside of the medical table and sleeps, or forcibly puts his / her fingers into the gap between the backrest and the seat. When the movable part of the chair is driven in this state, there is a possibility that hands and feet are pinched or caught. In addition, when the patient is an elderly person, the patient may be seated in a sitting position. In such a case, there is a possibility that the fingertip of the foot may be caught between the backrest and the seat surface by folding the foot as it is with the back folded. Thus, there is a need for a technique for safely driving the movable part of the medical table in the posture of the patient that is not originally intended.

  This invention is made | formed in view of the said subject, and it aims at providing the technique which makes it possible to drive the movable part of a medical table safely.

In order to solve the above-described problem, a first aspect includes a medical table having a movable part, a camera that captures a patient supported by the medical table, and a posture that detects the posture of the patient photographed by the camera. A detection unit, and a notification unit that notifies a warning when the posture detection unit detects that the patient is in an abnormal posture, and the posture detection unit is defined in advance as the detected posture of the patient. comparing the abnormal posture pattern, if the patient's hand or foot can not be detected, it detect the posture of the patient as the abnormal posture.

  The second mode is the operation of the movable unit of the medical table when the posture detection unit detects that the posture of the patient is abnormal in the medical medical device according to the first mode. A drive control unit that disables the control.

The third aspect is the medical care system according to the first or second state like, when driving the movable part, the foreign matter detection unit for detecting foreign objects in predefined detection target region, the In addition, the notification unit notifies a warning when the foreign object detection unit detects a foreign object.

According to a fourth aspect, in the medical medical device according to any one of the first to third aspects, the notification unit includes a display device that displays an image indicating the warning.

According to the medical treatment apparatus according to the first to fourth aspects, it is possible to notify a warning when it is detected that the patient is supported by the treatment table in an abnormal posture. Therefore, when the operator operates the movable part of the medical table, it is possible to prevent the possibility that the hand or the foot due to the abnormal posture of the patient is pinched or caught.
Further, an abnormal posture can be detected based on a posture pattern defined in advance. Therefore, by defining various posture patterns in advance, it is possible to detect an abnormal posture with high accuracy.
Further, by detecting the patient's hand or foot, it is possible to suppress the possibility that the hand or foot is caught in a gap formed in the medical table.

  In addition, according to the second medical care apparatus, when an abnormal posture of the patient is detected, the movable part cannot be operated, thereby preventing a hand or a leg from being caught or caught. be able to.

Moreover, according to the medical treatment apparatus which concerns on a 3rd aspect, when there exists a foreign material in a detection area, a warning is notified. Therefore, when the movable part of the medical table is driven, it is possible to prevent the medical table from being broken due to foreign matters such as patient belongings (such as a mobile phone) and equipment being caught in the medical table.

Moreover, according to the medical treatment apparatus which concerns on a 4th aspect, the operator can grasp | ascertain visually the warning which shows that a patient is an abnormal posture. Therefore, it is possible to effectively prevent the patient's hand or foot from being caught or caught.

It is an external view which shows the whole medical treatment apparatus which concerns on embodiment. It is a block diagram which shows the structure of a medical treatment apparatus. It is a side view which shows the patient sheet according to the medical treatment situation. It is a side view which shows the patient sheet according to the medical treatment situation. It is a top view which shows a mode when the patient is seated on the patient seat of the state shown in FIG. 3 with a normal posture. FIG. 4 is a top view showing a state when the patient is seated in an abnormal posture on the patient seat in the state shown in FIG. 3. It is a top view which shows a mode when the patient is seated on the patient seat of the state shown in FIG. 4 with the abnormal posture. FIG. 4 is a top view showing a state when the patient is seated in an abnormal posture on the patient seat in the state shown in FIG. 3. It is a top view which shows a mode when the patient is seated on the patient seat of the state shown in FIG. 4 with the abnormal posture. FIG. 4 is a top view showing a state when the patient is seated in an abnormal posture on the patient seat in the state shown in FIG. 3. It is a top view which shows a mode when the patient is sitting on the patient seat of the state shown in FIG. It is a flowchart which shows a series of operation | movement of the medical treatment apparatus at the time of medical treatment.

  Hereinafter, embodiments will be described in detail with reference to the drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention only to them.

{1. Embodiment}
FIG. 1 is an external view illustrating an entire medical treatment apparatus 100 according to the embodiment. FIG. 2 is a block diagram illustrating a configuration of the medical diagnostic apparatus 100. As shown in FIGS. 1 and 2, the medical medical device 100 includes a medical table 10 used by an operator and a patient, and a control unit 9 that performs drive control of each element constituting the medical table 10. .

{Composition of medical desk}
The medical table 10 includes a patient sheet 1 (seat), a spiton 2, a tray table 3, a medical instrument 4, a foot controller 5, a monitor 6 (display device) mounted on the tray table 3, and a surgical light. 7 (illumination device) and a photographing unit 8. The medical medical device 100 has a configuration suitable for an operator such as a dentist or his / her assistant to perform dental care using the medical instrument 4 for a patient seated on the patient sheet 1. In the following description, the medical practice includes both a medical examination and a therapeutic action. Further, the phrase “the patient is seated on the patient seat 1” means a state where the patient is supported by the patient seat 1. Therefore, the patient is seated on the patient seat 1 not only when the patient is supported in the sitting position but also when the backrest 1b of the patient seat 1 falls back and the patient takes a supine posture. This includes cases where

  The patient seat 1 includes a headrest 1a that supports the patient's head, a backrest 1b that mainly supports the patient's back, a seat surface sheet 1c that supports the patient's buttocks, and a foot on which both feet of the patient are placed. It is comprised with the stand 1d. The headrest 1a, the backrest 1b, the seat surface seat 1c, and the footrest 1d are configured as movable parts that are driven by the seat driving part 1M. Specifically, the seat driving unit 1M displaces each of the headrest 1a, the backrest 1b, the seat surface seat 1c, and the footrest 1d to an optimal position in accordance with the medical situation.

  FIG. 3 and FIG. 4 are side views of the patient sheet 1 according to the medical situation. FIG. 3 is a side view showing the patient seat 1 before the patient sits on the patient seat 1 (at the time of introduction) or leaves the seat (at the time of departure). FIG. 4 is a side view showing the patient sheet 1 when the patient is in a supine posture for dental treatment (during treatment).

  As shown in FIGS. 3 and 4, in the present embodiment, the headrest 1a, the backrest 1b, the seat surface seat 1c, and the footrest 1d are driven by the drive mechanism (seat drive unit 1M) attached to the patient seat 1. Can be displaced respectively. As shown in FIG. 2, the sheet driving unit 1 </ b> M is controlled by the sheet driving control unit 941 of the driving control unit 94. As for the configuration of the seat driving unit 1M that drives each part of the patient seat 1, a conventional known technique or a technique similar thereto can be used. For this reason, the description of the detailed structure of the sheet driving unit 1M is omitted.

  For example, the seat surface sheet 1c can be changed in height (H) by a built-in lifting mechanism. Thereby, the height position of the upper surface of the seat surface sheet 1c which supports a patient's buttocks can be changed within a predetermined range. By raising and lowering the seat sheet 1c, the entire patient seat 1 can be displaced up and down.

  Further, the patient seat 1 includes a tilting mechanism that raises the backrest 1b with the connecting portion with the seating surface seat 1c as a fulcrum and moves the backrest 1b vertically downward. By this tilting mechanism, the tilt angle (J) of the backrest 1b with respect to the horizontal line HL can be adjusted.

  Further, the patient seat 1 includes a tilting mechanism that raises the footrest 1d to the upper side in the vertical direction or tilts the footrest 1d to the lower side in the vertical direction with the connection portion with the seat surface seat 1c as a fulcrum. By this tilting mechanism, the tilt angle (K) of the footrest 1d with respect to the horizontal line HL can be adjusted.

  Further, the patient seat 1 includes a tilting mechanism that raises the headrest 1a upward in the vertical direction with the connecting portion with the backrest 1b as a fulcrum, or tilts the headrest 1a downward in the vertical direction. By this tilting mechanism, the tilt angle (L) of the headrest 1a with respect to the backrest 1b can be adjusted.

  As shown in FIG. 3, when the patient is seated on or away from the patient seat 1, the seat driving unit 1 </ b> M raises the backrest 1 b substantially perpendicular to the horizontal plane. Each part of the patient seat 1 at the time of introducing or leaving the patient is driven according to the physique of the patient.

For example, when a person with low height or low physical strength (such as a child or an elderly person) is a patient, the seat surface sheet 1c is positioned so as to be lower than when a young person is a patient. Thus, each patient can safely sit on the patient seat 1 by adjusting the position of the seating surface seat 1c for each patient at the time of introduction (or leaving) of the patient.

  In addition, as shown in FIG. 4, during medical examination, the seat driving unit 1M of the patient seat 1 arranges the backrest 1b, the seat surface sheet 1c, and the footrest 1d so as to extend substantially horizontally. Thereby, the patient can be supported on the patient seat 1 in a supine posture. The optimal position of the patient's head at the time of dental treatment may vary depending on the physique, preference, and medical purpose of the operator. The position of the patient's head can be adjusted mainly by changing the inclination angle (L) of the headrest 1a or changing the height (H) of the seat surface sheet 1c.

  Also, the optimal position of the patient's head for the operator may differ depending on the size of the patient's head and the size of the mouth when the patient opens his / her mouth. In consideration of such points, the inclination angle (L) of the headrest 1a at the time of treatment, the height (H) of the seating sheet 1c, and the like are adjusted for each combination of the operator and the patient.

  Returning to FIG. 1, the spitton 2 is provided on the side of the patient seat 1. The Spitton 2 includes a Spitton bowl 21 in which a drain outlet is formed, a cup table 22 on which a cup is placed, a water faucet 23 for absorbing water into the cup, and the like.

  The tray table 3 is connected to an arm extending from the patient sheet 1 and is configured to be capable of rotating with respect to the patient sheet 1 manually or automatically. The tray table 3 includes a medical instrument holder that holds the medical instrument 4 as a handpiece so that the surgeon can pick it up.

  The medical instrument 4 includes a cutting tool such as an air turbine handpiece and a micromotor handpiece, a scaler, a three-way syringe, a vacuum syringe, and the like. Note that the medical instrument 4 is not limited to these, and may be an oral camera, a photopolymerization irradiator (both not shown), or the like. Further, the medical instrument 4 may be configured by an instrument that does not have a drive unit, such as a mirror or a syringe.

  The foot controller 5 is configured as an operation unit for an operator who performs medical care to operate a movable part such as the patient sheet 1 and the medical instrument 4 constituting the medical table 10 to perform a specific operation. ing. The foot controller 5 is provided with a plurality of operation input units such as pedals and switches to which specific operation functions are assigned. An operator (operator) can cause the movable part to perform a specific operation according to the contents assigned to each by operating each operation input unit.

  The monitor 6 includes a flat panel display such as a liquid crystal display, a CRT (Cathode Ray Tube) monitor, and the like. The monitor 6 displays a warning screen indicating a warning based on a signal from a recognition unit 92 of the control unit 9 described later. That is, in this embodiment, the monitor 6 functions as a notification unit. In this way, by notifying the warning via the monitor 6, an operator (such as an operator) of the medical medical device 100 can visually grasp the warning. The contents of the warning displayed on the monitor 6 will be described later.

  Note that the notification unit may be configured by a device other than the monitor 6. For example, it may be configured by an indicator lamp that notifies a warning by lighting or a speaker that notifies a warning by sound.

  In addition, the monitor 6 may be configured to display various types of information used in medical treatment, such as various types of medical chart information about the patient and X-ray photographs. By displaying these pieces of information on the monitor 6, information can be easily presented to the patient, so that medical care can proceed smoothly.

  The surgical light 7 illuminates the oral cavity of the patient seated on the patient seat 1. In particular, at the time of medical treatment, the surgical light 7 irradiates light to a treatment site (here, a tooth in the oral cavity) of a patient seated on the patient sheet 1. The surgical light 7 is attached to the joint arm. By bending the joint arm, the surgeon can move the surgical light 7 up and down or left and right and place it in an appropriate position.

  The photographing unit 8 is attached to the surgical light 7. The imaging unit 8 captures an image of the patient's oral cavity illuminated by the surgical light 7, performs appropriate image processing, and acquires an image to be displayed on a display device such as the monitor 6. By displaying such an oral image on the monitor 6, for example, the surgeon can explain symptoms to the patient while looking at the monitor 6 at the time of medical care. In addition, during treatment, an operator may take a picture of the treatment and display it on the monitor 6. In addition, the photographing unit 8 may be attached to the joint arm and disposed in the vicinity of the surgical light 7.

  The photographing unit 8 includes a camera 8 a that photographs a part or all of the patient sheet 1. The camera 8a images the patient seated on the patient seat 1. In this embodiment, in order to specify the position of the patient's limbs (both hands and feet) by the camera 8a, imaging is performed so as to include the patient's limb. Image data acquired by the camera 8 a is transmitted to the image processing unit 91. Note that the photographing unit 8 does not have to be composed of only one camera 8a, and may be composed of a plurality of cameras so as to individually photograph several areas.

{Control part}
The control unit 9 is configured as a general computer including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The control unit 9 has a function of controlling the operation of each element constituting the medical table 10. The control unit 9 performs patient posture detection and foreign object detection, which will be described later, and controls each drive unit of the treatment table 10. The control unit 9 may be provided outside the medical table 10 or may be built in the medical table 10.

  As illustrated in FIG. 2, the control unit 9 functions as an image processing unit 91, a recognition unit 92, and a drive control unit 94 (including a sheet drive control unit 941 and a medical instrument drive control unit 94). These functions are realized by the CPU provided in the control unit 9 operating according to a predetermined program. Note that some or all of these functions may be implemented as hardware by configuring them as dedicated circuits.

  The control unit 9 is connected to a storage unit 95 having a recording medium such as a hard disk. The control unit 9 and the storage unit 95 are connected to each other via various networks such as a LAN (Local Area Network), an intranet, and the Internet. In addition, by providing the storage unit 95 with a function as a server, various types of data used in the medical treatment apparatus 100 can be centrally managed in the storage unit 95. Thereby, it becomes easy to share the data held by the storage unit 95 between the control unit 9 and other terminals (not shown) other than the control unit 9. Therefore, the degree of freedom for data acquisition and data storage can be increased. The storage unit 95 may be provided inside the control unit 9.

  The image processing unit 91 performs various types of image processing necessary for image analysis by the recognition unit 92 such as contrast adjustment and feature extraction on the image data sent from the photographing unit 8. The image processing data acquired by this image processing is transferred to the recognition unit 92.

  The recognition unit 92 includes an attitude detection unit 921 and a foreign object detection unit 922. The posture detection unit 921 analyzes the posture of the patient sitting on the patient seat 1 and detects whether or not the patient is in an abnormal posture. The abnormal posture refers to a posture different from the normal posture (normal posture) of the patient seated on the patient seat 1. Here, the normal posture is set so that the movable part of the patient seat 1 can be safely driven. Further, the foreign object detection unit 922 detects whether or not a foreign object exists in a predetermined region (detection target region). First, posture detection by the posture detection unit 921 will be described.

{Attitude detection}
The posture detection unit 921 detects the limbs (both hands and feet) of the patient P based on the image acquired by the camera 8a. The posture detection unit 921 detects the tip part of the limb (the part from the wrist or the part from the ankle) or the characteristic part (joint, tip part, contour) of the limb. Thus, it is detected whether or not the patient is in an abnormal posture.

  In addition, as a method of detecting limbs, a method of extracting a skin color (for example, skin color) portion, a method of extracting limbs based on a shape, or a patient in the image processing data acquired by the image processing unit 91 Various techniques including a known technique can be applied, such as a method for estimating the position of the limb using the standard model.

  The posture pattern 951 stored in the storage unit 95 is a set of data indicating the normal posture of the patient. In the present embodiment, the posture pattern 951 is composed of data related to the positions of the patient's limbs (both hands and feet) when seated in a normal posture on the patient seat 1. The posture pattern 951 is information referred to when the posture detection unit 921 detects an abnormal posture of the patient. The posture detection unit 921 compares the position of the patient's limbs extracted by image analysis with the position of the patient's limbs registered in the posture pattern 951, so that the posture of the patient sitting on the patient seat 1 is compared. Detects whether the posture is abnormal. The posture pattern 951 is input to the control unit 9 via the input unit 61 including various input devices such as a mouse and a keyboard connected to the control unit 9. Data input via the input unit 61 is stored in the storage unit 95 as a posture pattern 951 by a registration unit (not shown).

  When the posture detection unit 921 detects that the patient is in an abnormal posture, the posture detection unit 921 passes the detection result to the drive control unit 94 (sheet drive control unit 941). Based on the detection result, the drive control unit 94 controls the seat drive unit 1M, so that the movable part of the patient seat 1 via the operation unit (such as an operation switch provided on the foot controller 5 or the tray table 3) is controlled. Stop driving temporarily. Thereby, since it becomes impossible to perform operation temporarily, a patient's body can be suppressed from being caught in the movable part of the patient seat 1 or being caught. When the posture detection unit 921 determines that the posture is not abnormal, the drive restriction of the movable unit by the seat drive control unit 941 is released, and the device can be operated again via the operation unit. If an abnormal posture is detected, an image for notifying the monitor 6 of the abnormal posture is displayed on the monitor 6.

  Here, a method for detecting an abnormal posture of a patient by the posture detection unit 921 will be described more specifically with reference to FIGS.

  FIG. 5 is a top view showing a state when the patient P is seated in a normal posture on the patient seat 1 in the state shown in FIG. 3. When the patient P is seated on the patient seat 1 in the sitting position, it is safe that both hands PH, PH of the patient P are placed on the armrests 1e, 1e arranged on both sides of the seat surface seat 1c. Desirable above. When in such a posture, the patient can be safely supported by driving the movable part. That is, when the patient seat 1 is in the state of introduction or leaving (that is, when the patient P is in the sitting position), there is a state in which both hands PH and PH are placed on the left and right armrests 1e and 1e. , Normal posture. Therefore, when in the sitting position, the state where the hand PH of the patient P is on the armrest 1e is registered in the posture pattern 951 as one of the normal positions.

  In the patient seat 1 shown in FIG. 5, the position of the hand PH of the patient P in the normal posture is not limited to the armrest 1e. For example, the patient's P hand PH may be registered in the posture pattern 951 as a normal posture when the patient PH is on the side of or above the hips or buttocks of the patient P or on the upper side of the abdomen.

  FIG. 6 is a top view showing a state when the patient P is seated in an abnormal posture on the patient seat 1 in the state shown in FIG. 3. In the example shown in FIG. 6, the patient P is seated on the patient seat 1 in the sitting posture, as in the case of FIG. 5. However, one hand PH (part from the left wrist) of the patient P is an underlay of the buttocks. In particular, in the example shown in FIG. 6, the hand PH is placed in the vicinity of the gap 11 between the backrest 1b and the seat sheet 1c. In this state, when the backrest 1b, which is a movable part, is tilted backward, the hand PH of the patient P may be caught in the gap 11.

  In the present embodiment, the posture detection unit 921 compares the registered normal posture of the patient with reference to the posture pattern 951 and the patient posture as shown in FIG. The posture of the patient illustrated in FIG. 6 is determined by the posture detection unit 921 not to correspond to any normal posture registered in the posture pattern 951. That is, the posture detection unit 921 detects that the patient P is in an abnormal posture. As a result, drive control by the sheet drive unit 1M is limited, or a warning is displayed on the monitor 6. Therefore, the movable part of the patient seat 1 can be safely driven.

  FIG. 7 is a top view illustrating a state where the patient P is seated in an abnormal posture on the patient seat 1 in the state illustrated in FIG. 4. In the example shown in FIG. 7, the patient P is supported on the patient seat 1 in a supine posture. One hand PH (the part from the right wrist) is placed on the seat 1c, while the other hand PH (the part from the left wrist) is an underlay of the patient's P waist. Yes. In particular, in the example shown in FIG. 7, the hand PH is placed in the vicinity of the gap 11 between the backrest 1b and the seat surface sheet 1c. In this state, when the movable part (particularly the backrest 1b) of the patient seat 1 is tilted upward, the hand PH of the patient P may be caught in the gap 11.

  Therefore, in the present embodiment, when the patient seat 1 is in the state shown in FIGS. 4 and 7 (that is, when the patient P is seated in a supine posture), both hands PH of the patient are seat seats. The state arranged on 1c is the normal posture. That is, a state in which both hands PH are on the seat surface sheet 1c is registered as the posture pattern 951. Accordingly, the posture of the patient P shown in FIG. 7 is detected as an abnormal posture by the posture detection unit 921. As a result, drive control by the sheet drive unit 1M is limited, or a warning is displayed on the monitor 6. Therefore, the movable part of the patient seat 1 can be safely driven.

  FIG. 8 is a top view illustrating a state where the patient P is seated in an abnormal posture on the patient seat 1 in the state illustrated in FIG. 3. In the example shown in FIG. 8, the patient P is seated on the patient seat 1 in a sitting posture in a sitting position. Therefore, both feet PF (especially the instep and fingertips) of the patient P are the underlay of the patient's buttocks and are placed in the vicinity of the gap 11. When the movable part (especially the backrest 1 b) of the patient seat 1 is tilted downward in this state, there is a possibility that the foot of the patient P is caught in the gap 11.

  Therefore, in the present embodiment, when the patient seat 1 is in the state shown in FIGS. 3 and 8 (that is, when the patient P is in the sitting position), both feet PF of the patient are placed on the footrest 1d. The state to be performed is a normal posture. That is, the state in which both feet PF and PF are on the footrest 1d is set as the posture pattern 951 as one of the normal postures. Accordingly, the posture of the patient P shown in FIG. 8 is detected as an abnormal posture by the posture detection unit 921. As a result, drive control by the sheet drive unit 1M is limited, or a warning is displayed on the monitor 6. Therefore, the movable part of the patient seat 1 can be safely driven.

  FIG. 9 is a top view illustrating a state where the patient P is seated in an abnormal posture on the patient seat 1 in the state illustrated in FIG. 4. In the example shown in FIG. 9, the patient P is supported on the patient seat 1 in a supine posture. Of both the legs PF, one leg PF (right leg) is placed on the upper part of the footrest 1d, and the other leg PF (left foot) is in the peripheral region 12 outside the footrest 1d. It is sticking out. In the state shown in FIG. 9, when the footrest 1d that is the movable part of the patient seat 1 is tilted downward, the foot PF is placed in the space 1dS (see FIGS. 3 and 4) below the footrest 1d. There is a risk of being caught. Further, even when the seat sheet 1c is lowered, there is a possibility that the foot is caught in the space 1dS. For this reason, such a posture is desirably detected as an abnormal posture.

  Therefore, in the present embodiment, when the patient seat 1 is in the state shown in FIGS. 4 and 9 (that is, when the patient P is seated in a supine posture), both feet PF of the patient are A state of being placed on 1d is a normal posture. That is, the state in which both feet PF are on the footrest 1d is registered in the posture pattern 951 as one of the normal postures. Accordingly, the posture of the patient P illustrated in FIG. 9 is detected as an abnormal posture by the posture detection unit 921. As a result, the drive control by the sheet drive unit 1M is restricted, or a warning is displayed on the monitor 6. Therefore, the movable part of the patient seat 1 can be safely driven.

  This completes the description of the specific method for detecting the abnormal posture of the patient by the posture detection unit 921. Note that the method for detecting the abnormal posture of the patient is not limited to the method described above.

  For example, as shown in FIGS. 6 and 8, when a part or all of the hand PH or the foot PF of the patient cannot be detected, the posture detection unit 921 immediately determines that the patient is in an abnormal posture. Also good. Thereby, the possibility that the hand PH and the foot PF are caught in the gap 11 formed in the patient seat 1 can be suppressed.

  In addition, when the movable part of the patient seat 1 (headrest 1a, backrest 1b, seat sheet 1c, footrest 1d) is driven, the patient's hand PH or By detecting the position of the foot PF, the posture of the patient P may be detected as an abnormal posture. This aspect will be described with reference to FIG.

  FIG. 10 is a top view illustrating a state where the patient P is seated in an abnormal posture on the patient seat 1 in the state illustrated in FIG. 3. In the example shown in FIG. 10, the patient P is seated on the patient seat 1 in the sitting posture, as in the case of FIG. 5. However, one hand PH (part from the left wrist) of the patient P is placed in the gap 11. In this state, when the backrest 1b, which is a movable part, is tilted backward, the hand PH of the patient P may be caught in the gap 11.

  Therefore, when the posture detection unit 921 detects that the limb of the patient P (here, the hand PH, particularly the portion beyond the wrist) is in the attention region R1 set so as to include the gap 11, the patient P is abnormal. Judged as posture. Thereby, when the hand PH of the patient P is placed in the attention area R1, a warning that the posture is abnormal is displayed on the monitor 6, and the movable portion of the patient seat 1 cannot be driven by the seat driving portion 1M. To be controlled.

  In addition, as shown in FIG. 10, you may set the area | region equivalent to the boundary part of the seat surface sheet 1c and the footrest 1d as attention area | region R2. When the posture detection unit 921 places the hand PH of the patient P (especially the portion ahead of the wrist) and the foot PF (particularly the portion beyond the ankle) in the attention region R2, the patient is in an abnormal posture. It may be determined.

  Further, as shown in FIG. 9, the peripheral area 12 of the footrest 1d may be set as the attention area R3. The posture detection unit 921 may determine that the patient is in an abnormal posture when the foot PF of the patient P (a portion beyond the ankle) is placed in the attention region R3. Further, in the case of a patient with long legs, the tip of the patient sheet 1 may protrude from the tip side, so the attention area R3 may be set to bisect the left and right areas of the patient sheet 1.

  As described above, when the hand PH or foot PF of the patient P is located in the attention area R1 to R3, a warning may be displayed on the monitor 6, or the movable part can be driven by the seat driving part 1M. You may make it disappear. By appropriately setting the attention areas R1 to R3, it is possible to prevent a patient's hand or foot from being caught or caught in a gap formed in the patient sheet 1 or the like.

{Foreign matter detection}
Next, foreign object detection by the foreign object detection unit 922 will be described in detail. As described above, the foreign object detection unit 922 detects a foreign object in a predetermined detection target region. In the present embodiment, the foreign object refers to an article including the patient's belongings and other than the equipment attached to the patient seat 1. When a foreign object is detected by the foreign object detection unit 922, an image having content indicating that a foreign object has been detected is displayed on the monitor 6 based on the detection result. The detection result is passed to the sheet drive control unit 941. Based on the detection result, the seat drive control unit 941 controls the seat drive unit 1M so that the movable part of the patient seat 1 is not temporarily driven.

  FIG. 11 is a top view illustrating a state when the patient P is seated on the patient seat 1 in the state illustrated in FIG. 3. A region including the gap 11 between the backrest 1b and the seat surface seat 1c is set as a detection target region R4. In addition, a region including the gap 13 between the seat sheet 1c and the footrest 1d is set as the detection target region R5. In the example shown in FIG. 11, a mobile phone 31 that is a foreign object is placed in the gap 11.

  When foreign matter is placed in the gap 11 or the gap 13, when the backrest 1b, the seat sheet 1c, and the footrest 1d, which are movable parts, are driven, the foreign matter is placed in the gaps 11 and 13 formed in the patient seat 1. If it is pinched, there is a possibility that the movable part of the patient seat 1 cannot be driven due to a failure. Therefore, in the present embodiment, such a problem is avoided by performing foreign object detection in the detection target regions R4 and R5 by the foreign object detection unit 922.

  As shown in FIG. 11, the detection target region R4 includes the body (both arms and torso) of the patient P in addition to the mobile phone 31. Therefore, when an image as shown in FIG. 11 is acquired, in order to detect a foreign object, a portion corresponding to the body of the patient P is removed (masked) from the detection target region R4 of the image. Only the telephone 31 needs to be detected.

  Here, for example, by using a standard model of a patient, a portion corresponding to the body of the patient P can be removed. Specifically, the characteristic parts (head, limb tips, joints, contours, etc.) of the patient P in the image are detected, and the standard model is deformed according to these positions. Thereby, the area | region equivalent to the patient P can be extracted from the image shown in FIG. By masking the extracted area, the mobile phone 31 can be detected from the image with high accuracy.

{Patient detection and foreign object detection during moving part drive}
The posture detection or foreign object detection of the patient by the posture detection unit 921 or the foreign object detection unit 922 may be performed only when the movable part of the patient seat 1 is stopped. However, it may be performed while the movable part of the patient seat 1 is being driven. Specifically, the abnormal posture of the patient is detected by the posture detection unit 921 while the movable part of the patient seat 1 is moved between the position shown in FIG. 3 and the position shown in FIG. You may do it. Further, the foreign object detection unit 922 may perform foreign object detection.

  Further, when an abnormal posture of a patient or a foreign object is detected during driving of the movable unit, the seat drive control unit 941 can control the seat drive unit 1M to reversely drive. For example, when an abnormal posture or a foreign object is detected while tilting and moving the backrest 1b which is a movable part, the backrest 1b is tilted in the reverse direction by driving the seat driving unit 1M backward. Can be moved. Further, when the patient's abnormal posture or foreign matter is detected while the seat surface seat 1c is being lifted or lowered, the seat drive portion 1M is reversely driven to raise or lower the seat surface seat 1c in the reverse direction. Can do. The reverse drive may be performed up to the limit of the movable range of each movable part, or may be returned to the position before being driven. The reverse drive may be performed only for a predetermined time (1 to 2 seconds) or may be performed for a predetermined distance (or angle).

  As described above, when an abnormal posture of a patient or a foreign object is detected during driving of the movable part, the patient's body or foreign object is placed in the gap formed in the patient seat 1 by performing reverse driving of the movable part. Even if they are caught or pinched, they can be easily taken out. Therefore, the movable part of the patient seat 1 can be safely driven.

  In this embodiment, the movable part is driven in reverse. However, in order to prevent the possibility that the patient's body is caught by the movable part of the patient seat 1, the movable part is driven in a safe direction. It is desirable to do. For example, if the gap 11 between the backrest 1b and the seat sheet 1c increases as the backrest 1b is tilted, it is safer for the patient to drive the backrest 1b in the direction of tilting. Moreover, the space 1dS below the footrest 1d becomes large by raising the seat sheet 1c. (See FIGS. 3 and 4). For this reason, it is safer for the patient to raise the seat surface sheet 1c than to lower it. Similarly, it is safer for the patient to raise the footrest 1d.

  When an abnormal posture of a patient or a foreign object is detected while the movable part is being driven, the possibility of being caught or caught is further reduced by driving each movable part in consideration of this safe driving direction. can do.

{Description of operation}
Next, the operation of the medical medical device 100 during medical treatment will be described.

  FIG. 12 is a flowchart showing a series of operations of the medical medical device 100 during medical treatment. In the following description, the operation of the medical diagnostic apparatus 100 is controlled by the control unit 9 unless otherwise specified. In addition, the flow of each step of the operation of the medical medical device 100 described below is only an example. Therefore, depending on the contents of each process, a plurality of processes may be executed in parallel, or the order in which the processes are executed may be changed.

  First, the medical treatment apparatus 100 starts photographing an area on the patient sheet 1 by the camera 8a of the photographing unit 8 (step S1). And it is determined whether the patient is image | photographed by comparing the image when a patient is not seated with a picked-up image (step S2). In step S2, if the patient is not imaged, the imaging is continued.

  In step S2, when the patient is photographed, the medical medical device 100 acquires a still image (step S3). The captured image data is subjected to image processing by the image processing unit 91 and passed to the recognition unit 92.

  Next, the medical treatment apparatus 100 determines whether or not the patient is in an abnormal posture based on the still image acquired in step S3 (step S4). Specifically, the posture detection unit 921 refers to the posture pattern 951 to detect whether or not the patient's posture is in an abnormal posture.

  If it is determined in step S4 that the patient is not in an abnormal posture (NO in step S4), the medical medical device 100 determines whether a foreign object has been detected (step S5). Specifically, the foreign object detection unit 922 determines whether there is a foreign object in a preset detection target area.

  If no foreign object is detected in step S5, the medical diagnostic apparatus 100 accepts an operation input via an operation unit (such as the foot controller 5) (step S6). Thereby, the operator can drive the movable part of the patient seat 1 by operating the foot controller 5 or the like.

  Next, the medical diagnosis apparatus 100 determines whether or not to continue the operation (step S7). Specifically, it is determined whether a predetermined end operation has been input to the control unit 9.

  In step S5 or step S6, when an abnormal posture of the patient is detected or a foreign object is detected, the medical medical device 100 determines whether or not the movable part of the patient seat 1 is being driven ( Step S8).

  When the movable part is stopped (NO in step S8), the medical diagnostic apparatus 100 disables the movable part of the patient seat 1 by not accepting the operation by the seat drive control unit 941. (Step S9). Further, the medical medical device 100 displays a warning on the monitor 6 (step S10). In step S10, the medical treatment apparatus 100 may simply display on the monitor 6 that the movable part cannot be driven, or more specifically, may indicate that an abnormal posture of the patient has been detected, or a foreign object. You may make it display on the monitor 6 that it detected.

  When the movable part is being driven (YES in step S8), the medical diagnostic apparatus 100 performs reverse driving of the movable part of the patient seat 1 (step S11). In addition, the medical treatment apparatus 100 displays a warning on the monitor 6 (step S12). In step S12, the medical treatment apparatus 100 may simply display on the monitor 6 that reverse driving is performed, or more specifically, may indicate that an abnormal posture of the patient has been detected or a foreign object is detected. You may make it display on the monitor 6 that it detected.

  When the warning display in step S10 or step S12 is performed, the medical treatment apparatus 100 returns to step S3 and executes the subsequent operations. The above is a description of a series of operations of the medical medical device 100 during medical treatment.

  According to the medical treatment apparatus 100 according to the present embodiment, it is possible to detect an abnormal posture of a patient or to notify a warning to an operator via the monitor 6. Since the operator can recognize that the patient is in a careful posture by this warning, the movable part of the patient seat 1 can be safely operated. In addition, when an abnormal posture is detected, the driving of the movable part is restricted, so that the operator can operate the movable part of the patient seat 1 more safely.

  In addition, since the foreign object can be detected in the medical medical device 100, the foreign object can be prevented from being caught in a gap (such as the gap 11) formed in the patient sheet 1. Therefore, it is possible to suppress the failure of the movable part.

{2. Modification}
Although the embodiment has been described above, the present invention is not limited to the above, and various modifications are possible.

  For example, the positions of the limbs in the normal posture may vary greatly depending on the age of the patient (for example, children, adults, elderly people), sex, or physique. Therefore, in the posture pattern 951, normal postures may be registered by being divided into groups for each patient's age, sex, or physique. At this time, the posture detection unit 921 makes different groups of normal postures to be referred to according to the age, sex, or physique of the patient. Thereby, it becomes possible to detect an abnormal posture of a patient accurately or efficiently.

  Further, the method for detecting the posture of the patient is not limited to the method described in the above embodiment. In addition, the detection target range of the attention area and the foreign substance area is not limited to that described in the above embodiment, and can be freely set.

  Moreover, in the said embodiment, the medical treatment apparatus 100 is comprised so that it may adapt to dental treatment. However, the present invention is applicable to all medical fields such as ophthalmology, otolaryngology, obstetrics and gynecology, orthopedics, plastic surgery, neurology, pediatrics, internal medicine, dermatology, radiology, urology, oral surgery, orthopedic surgery, etc. The present invention can be applied to general dental dentistry including medical or medical medical devices in various fields in the veterinary field.

  Moreover, each structure demonstrated by said each embodiment and each modification can be suitably combined unless it mutually contradicts.

DESCRIPTION OF SYMBOLS 1 Patient seat 10 Medical stand 100 Medical medical device 11, 13 Crevice 12 Peripheral area 1M Seat drive part 1a Headrest 1b Backrest 1c Seat surface sheet 1d Footrest 1dS Space 1e Elbow rest 31 Mobile phone (foreign substance)
5 Foot Controller 6 Monitor 61 Input Unit 8 Imaging Unit 8a Camera 9 Control Unit 91 Image Processing Unit 92 Recognition Unit 921 Posture Detection Unit 922 Foreign Body Detection Unit 94 Drive Control Unit 941 Seat Drive Control Unit 95 Storage Unit 951 Posture Pattern P Patient PF Foot PH hand R1 to R3 Caution area R4, R5 Detection target area

Claims (4)

A medical table with moving parts;
A camera for photographing a patient supported by the medical table;
A posture detection unit that detects the posture of the patient imaged by the camera;
A notification unit that notifies a warning when the posture detection unit detects that the patient is in an abnormal posture;
Equipped with a,
The posture detection unit compares the predefined abnormal posture pattern and the detected patient posture, if the patient's hand or foot can not be detected, for medical you detect the posture of the patient as the abnormal posture Medical equipment. The medical examination apparatus according to claim 1,
A drive control unit that disables the operation of the movable unit of the medical table when the posture detection unit detects that the patient's posture is abnormal;
A medical medical device further comprising: The medical examination apparatus according to claim 1 or 2 ,
A foreign object detection unit that detects a foreign object in a predetermined detection target region when the movable unit is driven;
The notification unit is a medical medical device that notifies a warning when the foreign object detection unit detects a foreign object. The medical examination apparatus according to any one of claims 1 to 3 ,
The said notification part is a medical treatment apparatus containing the display apparatus which displays the image which shows the said warning.

Images