WO2016174819A1 - 検査・診断装置 - Google Patents
検査・診断装置 Download PDFInfo
- Publication number
- WO2016174819A1 WO2016174819A1 PCT/JP2016/001819 JP2016001819W WO2016174819A1 WO 2016174819 A1 WO2016174819 A1 WO 2016174819A1 JP 2016001819 W JP2016001819 W JP 2016001819W WO 2016174819 A1 WO2016174819 A1 WO 2016174819A1
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- WIPO (PCT)
- Prior art keywords
- probe
- joint
- inspection
- force
- diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
- A61B5/4528—Joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
- A61B1/317—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for bones or joints, e.g. osteoscopes, arthroscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/1036—Measuring load distribution, e.g. podologic studies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6852—Catheters
- A61B5/6855—Catheters with a distal curved tip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6885—Monitoring or controlling sensor contact pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2505/00—Evaluating, monitoring or diagnosing in the context of a particular type of medical care
- A61B2505/05—Surgical care
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0431—Portable apparatus, e.g. comprising a handle or case
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0443—Modular apparatus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0247—Pressure sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0252—Load cells
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0261—Strain gauges
Definitions
- the present invention relates to an inspection / diagnosis apparatus for inspecting or diagnosing a joint state.
- ⁇ Orthopedic surgery includes arthroscopic surgery that treats the tissues in and around the joint.
- an arthroscope is inserted into a joint, and treatment is performed while the pathological condition is confirmed.
- Non-Patent Documents 1 and 2, etc. tissue damage may be confirmed using a probe (see Non-Patent Documents 1 and 2, etc.).
- osteoarthritis As a representative example of a hip joint disease to be subjected to hip arthroscopic surgery.
- prodromal symptoms of osteoarthritis of the hips appear on the joint lips at the hip margin, and it has also been found that the symptoms progress and the cartilage is damaged. Therefore, in grasping the pathological condition of the hip joint, pulling of the joint lip or pressing of the cartilage is performed using a probe, and the presence or absence of the joint lip and cartilage and the degree of damage are qualitatively evaluated.
- the inspection and diagnosis of the joint state using the probe as described above is performed based on the sense that the doctor applies to the hand from the probe. Therefore, a wealth of knowledge and experience is required to make an appropriate evaluation. Therefore, it is difficult for an inexperienced doctor to appropriately perform inspection and diagnosis using a probe. Moreover, even an experienced doctor cannot quantitatively evaluate how much the damaged site has been improved as a result of the surgical technique.
- An object of the present invention is to provide an inspection / diagnosis apparatus that can efficiently and appropriately perform joint inspection and diagnosis using a probe without depending on the skill level of a user.
- An inspection / diagnosis apparatus is an inspection / diagnosis apparatus for inspecting or diagnosing the state of a joint, and includes a gripping part gripped by a user and a first direction from the gripping part. A probe having a bent tip provided to extend and a force applied to the tip of the probe in the first direction are detected, and the probe intersects the first direction with respect to the tip of the probe. And a detection unit that detects a force applied in the direction of 2.
- the tip of the probe is brought into contact with the joint while the grip is held by the user.
- a reaction force is applied from the joint to the tip of the probe.
- a force applied in the first direction and a force applied in the second direction from the joint to the tip of the probe are detected by the detection unit.
- the reaction force of the joint portion with respect to pulling or pressing corresponds to the force in the first direction. Therefore, it is possible to appropriately and quantitatively evaluate the state of the joint portion by pulling or pressing based on the detected force in the first direction.
- a reaction force in a direction different from the first direction may be applied from the joint to the probe due to other factors.
- the force in the second direction intersecting the first direction is detected, the force applied to the tip of the probe due to other factors is grasped based on the detected force in the second direction. can do. Thereby, various evaluation with respect to a joint part is attained. Accordingly, it is possible to efficiently and appropriately perform joint inspection and diagnosis using a probe without depending on the skill level of the user.
- the tip of the probe may be provided to be bent in a plane parallel to the first direction and the second direction.
- the force applied to the tip of the probe in the second direction becomes relatively large. Thereby, based on the detected force in the second direction, it is possible to appropriately grasp the force applied to the tip of the probe.
- the detection unit may detect a force applied to the tip of the probe in a third direction intersecting the first direction and the second direction. In this case, more various evaluations for the joint can be performed based on the detected force in the third direction.
- the inspection / diagnosis device supports the gripper so as to be movable in the first direction, and supports a support member gripped by the user together with the gripper, and a movement amount of the support member relative to the gripper. You may further provide a movement amount measurement part.
- the distance for pulling and pushing the probe can be easily adjusted to be constant. Therefore, it is possible to grasp the force applied to the tip of the probe while ensuring the reproducibility of the movement amount of the probe at the time of inspection and diagnosis. As a result, it is possible to more accurately evaluate the state of the joint by pulling and pressing.
- FIG. 1 is an external perspective view of the inspection / diagnosis apparatus according to the first embodiment.
- FIG. 2 is a side view of the inspection / diagnosis apparatus of FIG.
- FIG. 3 is a view for explaining the attachment of the probe.
- FIG. 4 is a diagram for explaining an external device connected to the inspection / diagnosis device.
- FIG. 5 is a diagram for explaining the hip joint and its peripheral portion.
- FIG. 6 is a schematic diagram for explaining an example of joint inspection and diagnosis by the inspection / diagnosis apparatus.
- FIG. 7 is a diagram illustrating an example of a measurement screen.
- FIG. 8 is a diagram showing an example of another shape of the tip of the probe.
- FIG. 9 is an external perspective view of an inspection / diagnosis apparatus according to the second embodiment.
- FIG. 1 is an external perspective view of the inspection / diagnosis apparatus according to the first embodiment.
- FIG. 2 is a side view of the inspection / diagnosis apparatus of FIG.
- FIG. 3 is a view for explaining the attachment of the probe.
- FIG. 10 is an external perspective view showing a state in which the apparatus main body of the inspection / diagnosis apparatus is fitted to the support member.
- FIG. 11 is an external perspective view showing an example of a state in which the inspection / diagnosis apparatus is held by the user.
- FIG. 12 is an external perspective view showing another example of the state in which the inspection / diagnosis apparatus is held by the user.
- FIG. 13 is an enlarged plan view of a part of the grip portion and the support member.
- FIG. 14 is an enlarged plan view showing another example of the movement amount measuring unit.
- FIG. 1 is an external perspective view of the inspection / diagnosis apparatus 10 according to the first embodiment
- FIG. 2 is a side view of the inspection / diagnosis apparatus 10 of FIG. It is.
- the inspection / diagnosis apparatus 10 includes a probe 1, a stress detection unit 2, and a grip unit 3.
- the probe 1 has a tall part 1a, a tip part 1b, and an attachment part 1c.
- the tall part 1a extends linearly.
- the tip 1b is provided so as to be bent from one end of the tall part 1a.
- the attachment part 1c is provided at the other end of the tall part 1a.
- the probe 1 is preferably made of a material having high anticorrosion properties, for example, stainless steel.
- the probe 1 may be formed of other materials such as other metals or resins.
- a direction parallel to the tall part 1a is defined as a Z direction, and two directions perpendicular to the Z direction and perpendicular to each other are defined as an X direction and a Y direction, respectively.
- arrows indicating the X direction, the Y direction, and the Z direction are respectively attached.
- the tip 1b is bent vertically from one end of the tall part 1a along the X direction. In this case, the tip 1b is bent in a plane parallel to the X direction and the Z direction.
- the tip 1b of the probe 1 is brought into contact with the joint that is the object of inspection and diagnosis.
- the joint part means a tissue in and around the joint. A specific example of the joint will be described later.
- a plurality of scales SC are imprinted at regular intervals on the portion of the tall portion 1a in the vicinity of the distal end portion 1b.
- the interval between the scales SC is 5 mm, for example.
- the stress detection unit 2 has a pressure receiving surface 2a and a fixed surface 2b parallel to the X direction and the Y direction.
- the probe 1 is attached to the central portion of the pressure receiving surface 2a of the stress detection unit 2 via a plate-like connection member C1.
- a cable 2 c is provided so as to extend from the stress detection unit 2.
- the stress detection unit 2 is configured to be able to detect an X-direction force Fx, a Y-direction force Fy, and a Z-direction force Fz applied to the tip 1b of the probe 1.
- the stress detection unit 2 is a three-component strain gauge type load cell, and includes a strain generating body and first, second, and third strain gauges.
- the first strain gauge is attached to the strain generating body along the X direction
- the second strain gauge is attached to the strain generating body along the Y direction
- the third strain gauge is applied along the Z direction. Affixed to the distorted body.
- the analog electric signal output to the cable 2c is calibrated in advance so as to represent the force Fx in the X direction, the force Fy in the Y direction, and the force Fz in the Z direction applied to the tip 1b of the probe 1.
- the grip part 3 is provided in a columnar shape so as to extend in the Z direction, and is fixed to the fixing surface 2b of the stress detection part 2 via the connection member C2.
- the axis of the grip portion 3 and the axis of the tall portion 1a of the probe 1 are located on a common straight line. The user brings the tip 1b of the probe 1 into contact with the joint while holding the grip 3.
- the shape of the grip portion 3 is not limited to a cylindrical shape, and may be other shapes such as a flat shape or a curved shape. Further, unevenness or the like may be formed on the surface of the grip portion 3 so that the user can easily grip it.
- FIG. 3 is a diagram for explaining the attachment of the probe 1.
- the connection member C ⁇ b> 1 is fixed to the pressure receiving surface 2 a of the stress detection unit 2.
- a male screw S1 is formed at the center of the connecting member C1 so as to protrude in the Z direction.
- a female screw S2 corresponding to the male screw S1 is formed on the mounting portion 1c of the probe 1.
- the probe 1 is fixed to the connection member C1 by the male screw S1 of the connection member C1 being screwed into the female screw S2 of the attachment portion 1c.
- the probe 1 can be easily attached to and detached from the stress detection unit 2. Thereby, cleaning, sterilization and disinfection of the probe 1 can be easily performed.
- the used probe 1 can be easily replaced with a probe 1 that has been cleaned, sterilized, disinfected, or the like.
- FIG. 4 is a diagram for explaining an external device connected to the inspection / diagnosis device 10.
- the inspection / diagnosis device 10 is connected to an A / D (analog / digital) converter 20 via a cable 2c, and the A / D converter 20 is connected to a display unit 30 via a cable 2d. Connected to.
- the A / D converter 20 converts an analog electric signal output from the stress detection unit 2 into a digital signal and supplies the digital signal to the display unit 30.
- the display unit 30 includes a liquid crystal display, for example, and displays forces Fx, Fy, and Fz detected by the inspection / diagnosis device 10 based on a digital signal given from the A / D converter 20.
- FIG. 5 is a diagram for explaining the hip joint and its peripheral portion.
- FIG. 5A shows a skeleton including left and right hip joints.
- FIG. 5B is an enlarged view of the left hip joint.
- the left hip joint J1 is between the pelvis B1 and the left femur B2, and the right hip joint J2 is between the pelvis B1 and the right femur B3.
- the left hip joint J1 will be described as a representative.
- the left hip joint J1 is composed of an acetabulum B11 of the pelvis B1 and a femoral head B21 of the left femur B2.
- various other tissues such as the femoral ligament 32 and the cartilage 33 in and around the left hip joint J1.
- the inspection / diagnosis device 10 is used, for example, to inspect and diagnose the state of the joint lip 31 that is a tissue in the hip joints J1 and J2.
- the target of the examination and diagnosis is not limited to the joint lip 31 and may be various tissues in or around the hip joints J1 and J2, such as ligaments and cartilage.
- the joint part to be examined and diagnosed is not limited to the tissues in and around the hip joints J1 and J2, but may be tissues in or around other joints such as the knee joint or the shoulder joint.
- FIG. 6 is a schematic diagram for explaining an example of joint examination and diagnosis by the examination / diagnosis apparatus 10.
- examination and diagnosis are performed on the part PS corresponding to the joint part.
- the site PS includes the joint lip 31 and the cartilage 33 of FIG. 5B, and has a concavely curved shape.
- the probe 1 is pulled to the user side with the tip 1b of the probe 1 being hooked on the joint lip 31.
- the joint lip 31 is pulled.
- the tip 1 b of the probe 1 is pressed against the cartilage 33.
- the cartilage 33 is pressed.
- the joint lip 31 may be pressed by the probe 1.
- the joint lip 31 is pressed by pressing the distal end portion 1 b of the probe 1 against the outer surface of the joint lip 31.
- reaction force is applied from the part PS to the tip 1b of the probe 1.
- the reaction force from the part PS is decomposed into forces Fx, Fy, and Fz in the X direction, the Y direction, and the Z direction.
- the force Fz in the direction away from the pressure receiving surface 2a (FIG. 2) of the stress detection unit 2 in the Z direction acts on the traction of the joint lip 31. Further, the front end 1 b is pressed against the edge of the joint lip 31 in order to hook the front end 1 b to the joint lip 31. Therefore, a force Fx is exerted in the direction opposite to the bending direction of the distal end portion 1b in the X direction. Further, due to the shape of the joint lip 31 and the pulling direction of the probe 1, a force Fy in the Y direction is applied. In the example of FIG. 6B, a force Fz in the direction toward the pressure receiving surface 2 a (FIG.
- FIG. 7 is a diagram illustrating an example of a measurement screen.
- the measurement screen MI in FIG. 7 includes waveform display portions D1, D2, and D3.
- the horizontal axis represents time
- the vertical axis represents the magnitude of force.
- the waveform display unit D1 displays a waveform representing the time change of the force Fx
- the waveform display unit D2 displays a waveform representing the time change of the force Fy
- the waveform display unit D3 displays the time change of the force Fz.
- a waveform representing is displayed.
- a numerical value representing the force Fx is displayed above the waveform display portion D1
- a numerical value representing the force Fy is displayed above the waveform display portion D2
- a numerical value representing the force Fz is displayed above the waveform display portion D3. Is displayed.
- These numerical values may be numerical values at the latest detection time point, or may be numerical values at an arbitrary time point designated by the user.
- the force Fz in the direction toward the pressure-receiving surface 2a is represented by a positive value
- the force Fz in the opposite direction is a negative value
- the force Fx in the bending direction of the distal end portion 1b is represented by a positive value
- the force Fx in the opposite direction is represented by a negative value
- the force Fy going to one side in the Y direction is represented by a positive value
- the force Fy going to the other side is represented by a negative value.
- the upper limit value setting part UL and the lower limit value setting part LL are displayed on the left side of each of the waveform display parts D1 to D3.
- upper limit values of forces Fx, Fy, Fz displayed on the waveform display units D1 to D3 are set
- forces Fx, displayed on the waveform display units D1 to D3 are set.
- Lower limits of Fy and Fz are set.
- the force perceived by the user with the hand is the resultant force of various directions, and the reaction force in each direction applied from the joint to the probe is quantitatively determined. Not represented.
- an X-direction force Fx, a Y-direction force Fy, and a Z-direction force Fz applied to the distal end portion 1b of the probe 1 are detected. In this case, based on the detected Z-direction force Fz, it is possible to appropriately and quantitatively evaluate the presence or absence of the joint portion and the degree of damage.
- FIG. 8 is a diagram illustrating another example of the shape of the distal end portion 1b of the probe 1.
- tip part 1b is provided so that an obtuse angle may be made with respect to the tall part 1a.
- tip part 1b is provided so that it may curve in a U shape.
- FIG. 9 is an external perspective view of an inspection / diagnosis apparatus 10A according to a second embodiment.
- the inspection / diagnosis apparatus 10 ⁇ / b> A in FIG. 9 includes an apparatus body 10 a and a support member 50.
- the apparatus main body 10 a includes a probe 1, a stress detector 2, and a grip 3.
- One or more recesses 11 are formed on the outer peripheral surface of the grip portion 3 of the apparatus main body 10a.
- the configuration of the other part of the apparatus main body 10a is the same as the configuration of the inspection / diagnosis apparatus 10 according to the first embodiment.
- the apparatus main body 10a is connected to the A / D converter 20 and the display 30 shown in FIG.
- the direction toward the probe 1 of the apparatus body 10a is referred to as the front, and the direction toward the opposite side of the probe 1 is defined as the rear.
- the support member 50 is made of a lightweight material such as synthetic resin or aluminum.
- the support member 50 includes a semicylindrical slide portion 51 and a substantially semicircular stopper portion 52.
- the slide portion 51 has a semi-cylindrical inner peripheral surface corresponding to the outer peripheral surface of the grip portion 3 of the apparatus main body 10a. One end of the slide portion 51 is opened, and the slide portion 51 is provided at the other end of the stopper portion 52.
- the slide part 51 of the support member 50 supports the grip part 3 of the apparatus main body part 10a so as to be movable in the Z direction.
- the shape of the slide portion 51 is not limited to a semi-cylindrical shape, and may be any other shape as long as the grip portion 3 of the apparatus main body 10a can be supported so as to be movable in the Z direction.
- the support member 50 is used with the inner peripheral surface of the slide portion 51 facing upward.
- a pair of movement amount measurement units 53 is provided in the vicinity of the stopper unit 52 on the upper end surface 51 a of the slide unit 51.
- each movement amount measurement unit 53 includes a plurality of scales.
- One movement amount measurement unit 53 may be provided on the support member 50.
- FIG. 10 is an external perspective view showing a state where the apparatus main body 10a of the inspection / diagnosis apparatus 10A is fitted to the support member 50.
- FIG. 10 the grip portion 3 of the apparatus main body 10 a is fitted into the slide portion 51 of the support member 50. Thereby, the outer peripheral surface of the grip portion 3 comes into contact with the inner peripheral surface of the support member 50. In this state, the apparatus main body 10 a is movable in the Z direction with respect to the support member 50.
- FIG. 11 is an external perspective view showing an example of a state in which the inspection / diagnosis apparatus 10A is held by the user.
- the user holds the support member 50 with the index finger, middle finger, ring finger, and little finger of the hand H, and presses the grip 3 of the device body 10a with the thumb, thereby supporting the device body 10a and the support.
- the member 50 can be gripped integrally. In this case, it is possible to prevent the thumb from slipping relative to the apparatus main body 10a by placing the thumb on the recess 11.
- the user can move the apparatus main body 10a back and forth in the Z direction with respect to the support member 50 by moving the thumb back and forth.
- the backward movement of the apparatus main body 10 a is restricted by the stopper 52.
- FIG. 12 is an external perspective view showing another example of the state where the inspection / diagnosis apparatus 10A is held by the user.
- the user holds the support member 50 with the thumb, ring finger, and little finger of the hand H, and presses the grip 3 of the device body 10a with the index finger and middle finger, thereby supporting the device body 10a and the support.
- the member 50 can be gripped integrally.
- the index finger and the middle finger can be prevented from slipping with respect to the apparatus main body 10a by placing the index finger and the middle finger on the recess 11.
- the user can move the apparatus main body 10a back and forth in the Z direction with respect to the support member 50 by moving the index finger and the middle finger back and forth.
- FIG. 13 is an enlarged plan view of a part of the grip portion 3 and the support member 50.
- the scale at the front end of the moving amount measuring unit 53 is called a first reference scale R1
- the scale at the rear end is called a second reference scale R2.
- the user aligns the rear end surface 12 of the gripping part 3 with the first reference scale R1 of the movement amount measuring part 53 as indicated by a dotted line.
- the user can pull the probe 1 backward by moving the apparatus main body 10a backward relative to the support member 50 as indicated by an arrow.
- the joint part can be pulled by the probe 1.
- the user can grasp the movement amount of the probe 1 by confirming which scale of the movement amount measurement unit 53 the rear end surface 12 of the apparatus main body 10 a is aligned with.
- the user aligns the rear end surface 12 of the grip portion 3 with the second reference scale R ⁇ b> 2 of the movement amount measurement unit 53.
- the user can push the probe 1 forward by moving the apparatus main body 10 a forward relative to the support member 50. Thereby, the joint portion can be pressed by the probe 1.
- the user can grasp the movement amount of the probe 1 by confirming which scale of the movement amount measurement unit 53 the rear end surface 12 of the apparatus main body 10 a is aligned with. Therefore, the user can easily adjust the distance for pulling and pushing the probe 1 to be constant. Thereby, the force applied to the tip 1b of the probe 1 can be grasped while ensuring the reproducibility of the movement amount of the probe 1 at the time of inspection and diagnosis. As a result, it is possible to more accurately evaluate the state of the joint by pulling and pressing.
- the user can grasp the force applied to the distal end portion 1b of the probe 1 and the amount of movement of the probe 1 while feeling the force applied to the device main body portion 10a with a finger when moving the device main body portion 10a. Thereby, the appropriate amount of movement of the probe 1 can be recognized for each patient.
- FIG. 14 is an enlarged plan view showing another example of the movement amount measuring unit 53.
- 14 includes a displacement sensor 53a and a display unit 53b.
- the displacement sensor 53 a measures the amount of movement (displacement) of the rear end surface 12 of the grip portion 3.
- As the display unit 53b for example, a liquid crystal display device is used.
- the display unit 53b displays the movement amount measured by the displacement sensor 53a as a numerical value. Thereby, the user can recognize the movement amount of the probe 1 by visually recognizing the display unit 53b.
- the display unit 53 b of the movement amount measurement unit 53 is attached to the support member 50, but the display unit 53 b may not be attached to the support member 50.
- the display unit 30 in FIG. 4 may display the movement amount measured by the displacement sensor 53a.
- the A / D converter 20 and the display unit 30 are provided separately from the inspection / diagnosis device 10, respectively, but the present invention is not limited to this. Absent.
- the A / D converter 20 may be provided in the inspection / diagnosis apparatus 10, and both the A / D converter 20 and the display unit 30 may be provided in the inspection / diagnosis apparatus 10.
- a force Fz applied to the tip 1b of the probe 1 in the Z direction is detected, and X perpendicular to the Z direction with respect to the tip 1b of the probe 1 is detected.
- the forces Fx and Fy applied in the direction and the Y direction are detected, respectively, but the present invention is not limited to this.
- a force applied in another direction intersecting the Z direction with respect to the tip 1b of the probe 1 may be detected. For example, as shown in FIG. 8A, when the distal end portion 1b bends in a direction not perpendicular to the tall portion 1a, a force acting in a direction parallel to the bending direction of the distal end portion 1b may be detected.
- the forces Fx and Fy in the X direction and the Y direction are detected in addition to the force Fz in the Z direction, respectively, but the present invention is not limited to this. Only a force in one direction other than the force Fz in the Z direction may be detected, or a force in three or more directions other than the force Fz in the Z direction may be detected.
- the support member 50 and the apparatus main body 10a can be separated from each other, but the apparatus main body 10a may be attached to the support member 50 so as to be movable in the Z direction.
- the inspection / diagnosis devices 10 and 10A are examples of inspection / diagnosis devices
- the grip portion 3 is an example of a grip portion
- the stress detection portion 2 is an example of a detection portion
- the probe 1 is It is an example of the probe
- the tip 1b is an example of the tip
- the Z direction is an example of the first direction
- the X direction is an example of the second direction
- the Y direction is an example of the third direction. It is.
- the present invention can be effectively used for various joint inspections and diagnoses.
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- Physics & Mathematics (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rheumatology (AREA)
- Physical Education & Sports Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
図1は、第1の実施の形態に係る検査・診断装置10の外観斜視図であり、図2は、図1の検査・診断装置10の側面図である。図1および図2に示すように、検査・診断装置10は、プローブ1、応力検出部2および把持部3を含む。
関節部の具体例として、股関節およびその周辺部について説明する。図5は、股関節およびその周辺部について説明するための図である。図5(a)は、左右の股関節を含む骨格を示す。図5(b)は、左股関節の拡大図である。
図6は、検査・診断装置10による関節部の検査および診断の例について説明するための模式図である。図6の例では、関節部に相当する部位PSに対する検査および診断が行われる。部位PSは、図5(b)の関節唇31および軟骨33を含み、凹状に湾曲した形状を有する。
従来のプローブを用いた検査および診断では、使用者が手で知覚する力は種々の方向の力の合力であり、かつ関節部からプローブに加わる各方向の反力を定量的に表していない。これに対して、本実施の形態に係る検査・診断装置10においては、プローブ1の先端部1bに加わるX方向の力Fx、Y方向の力FyおよびZ方向の力Fzがそれぞれ検出される。この場合、検出されるZ方向の力Fzに基づいて、関節部の損傷の有無および損傷の程度を適切にかつ定量的に評価することができる。また、検出されるX方向の力FxおよびY方向の力Fyに基づいて、牽引および押圧以外の要因により関節部からプローブ1の先端部1bに働く力を把握することができる。そのため、関節部に対する多様な評価が可能となる。これらにより、プローブ1を用いた関節部の検査および診断を使用者の熟練度に依存せずに効率良くかつ適切に行うことが可能となる。
プローブ1の先端部1bの形状は、上記の例に限定されない。図8は、プローブ1の先端部1bの他の形状の例を示す図である。図8(a)の例では、先端部1bが長身部1aに対して鈍角をなすように設けられる。また、図8(b)の例では、先端部1bがU字状に湾曲するように設けられる。このような多様な形状のプローブ1を選択的に用いることにより、種々の形状の関節部に対して適切な検査および診断を行うことが可能となる。
図9は、第2の実施の形態に係る検査・診断装置10Aの外観斜視図である。図9の検査・診断装置10Aは、装置本体部10aおよび支持部材50により構成される。装置本体部10aは、プローブ1、応力検出部2および把持部3を含む。装置本体部10aの把持部3の外周面には1つまたは複数の凹部11が形成されている。装置本体部10aの他の部分の構成は、第1の実施の形態に係る検査・診断装置10の構成と同様である。装置本体部10aは、図4に示されるA/D変換器20および表示部30に接続される。以下、装置本体部10aのプローブ1に向かう方向を前方と呼び、プローブ1と反対側に向かう方向を後方と定義する。
上記第1および第2の実施の形態では、A/D変換器20および表示部30がそれぞれ検査・診断装置10と別個に設けられるが、本発明はこれに限らない。A/D変換器20が検査・診断装置10に設けられてもよく、A/D変換器20および表示部30の両方が検査・診断装置10に設けられてもよい。
以下、請求項の各構成要素と実施の形態の各構成要素との対応の例について説明するが、本発明は下記の例に限定されない。
Claims (4)
- 関節部の状態を検査または診断するための検査・診断装置であって、
使用者により把持される把持部と、
前記把持部から第1の方向に延びるように設けられ、屈曲された先端部を有するプローブと、
前記プローブの前記先端部に対して前記第1の方向に加わる力を検出するとともに、前記プローブの前記先端部に対して前記第1の方向と交差する第2の方向に加わる力を検出する検出部とを備える、検査・診断装置。 - 前記プローブの前記先端部は、前記第1の方向および前記第2の方向に平行な面内で屈曲するように設けられる、請求項1記載の検査・診断装置。
- 前記検出部は、前記プローブの前記先端部に対して前記第1の方向および前記第2の方向に交差する第3の方向に加わる力を検出する、請求項1または2記載の検査・診断装置。
- 前記把持部を前記第1の方向に移動可能に支持するとともに、使用者により前記把持部とともに把持される支持部材と、
前記把持部に対する前記支持部材の移動量の計測のための移動量計測部とをさらに備える、請求項1~3のいずれか一項に記載の検査・診断装置。
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JP2000517051A (ja) * | 1996-08-23 | 2000-12-19 | オステオバイオロジックス,インコーポレイテッド | 把持型物質テスタ |
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US11147504B2 (en) | 2021-10-19 |
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