JP2001321358A - Displacement sensor for organism - Google Patents
Displacement sensor for organismInfo
- Publication number
- JP2001321358A JP2001321358A JP2000143190A JP2000143190A JP2001321358A JP 2001321358 A JP2001321358 A JP 2001321358A JP 2000143190 A JP2000143190 A JP 2000143190A JP 2000143190 A JP2000143190 A JP 2000143190A JP 2001321358 A JP2001321358 A JP 2001321358A
- Authority
- JP
- Japan
- Prior art keywords
- living body
- displacement sensor
- plate
- shaped member
- easily deformable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、生体用変位センサ
に関し、特に、関節部のまげ角度をリアルタイムに測定
する生体用変位センサに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a displacement sensor for a living body, and more particularly, to a displacement sensor for a living body for measuring a bending angle of a joint in real time.
【0002】[0002]
【従来の技術】生体の四肢の関節部のまげ角度を測定す
るための装置としては、実開平5−76403公報に開
示された技術等によるゴニオメータが使用されており、
これを関節部に取り付けて、四肢のまげ角度を測定する
ことにより、リハビリテーション中の患者の回復度合の
診断などに用いられている。2. Description of the Related Art A goniometer according to the technique disclosed in Japanese Utility Model Laid-Open No. 5-76403 is used as an apparatus for measuring the angle of bending of a joint of a living limb.
By attaching this to a joint and measuring the angle of the limb, it is used for diagnosis of the degree of recovery of a patient during rehabilitation.
【0003】近年、リハビリテーションやスポーツ等に
関する研究で関節部等の動きをリアルタイムに測定した
り、手術を行っている医療従事者の手首の動きをリアル
タイムに測定するなどして、コンピュータによるバーチ
ャルリアリティーを用いた表示を行うことが実現できる
ようになってきている。このためには、関節部等のまげ
角度をリアルタイムに測定する装置が必要である。[0003] In recent years, in research on rehabilitation, sports, and the like, real-time measurement of the movement of joints and the like and measurement of the wrist movement of a medical worker performing an operation in real time have been used to realize virtual reality by a computer. It is becoming possible to realize the display using. For this purpose, a device for measuring the angle of a joint or the like in real time is required.
【0004】しかし、関節部等を常に動かしながらリア
ルタイムにまげ角度測定しなけらばならないような用途
には、上記のゴニオメータでは、関節部を充分に動かす
ことができず、また、速い動きに対しリアルタイムに追
従できないものである。However, in applications where it is necessary to measure the angle of rotation in real time while constantly moving a joint or the like, the above-described goniometer cannot move the joint sufficiently, and it is difficult to move the joint at high speed. It cannot follow in real time.
【0005】このため、上述の用途に適したまげ角度測
定装置として、生体用変位センサを用いることが考えら
れる。この生体用変位センサとは、歪みゲージを板状部
材に取り付け、この板状部材の両端を関節部に装着する
ことにより、関節部の運動が自由に出来る状態でもまげ
角度を測定するようにした装置である。[0005] For this reason, it is conceivable to use a displacement sensor for a living body as the eyelash angle measuring device suitable for the above-mentioned application. With this displacement sensor for living body, a strain gauge is attached to a plate-like member, and both ends of the plate-like member are attached to a joint, so that the bending angle can be measured even when the joint can freely move. Device.
【0006】従来の生体用変位センサの全体斜視図を図
7に示す。図に示すように、従来の生体用変位センサ2
0は、板状部材21が大きく湾曲した湾曲部22を有
し、この湾曲部22内の曲線部分に、電気的に接続した
出力リード線24a、24bが取り付けられた歪みゲー
ジ23を具備した構造となっている。FIG. 7 is an overall perspective view of a conventional displacement sensor for a living body. As shown in FIG.
Reference numeral 0 denotes a structure in which the plate-like member 21 has a curved portion 22 that is greatly curved, and a curved portion in the curved portion 22 is provided with a strain gauge 23 to which output lead wires 24a and 24b that are electrically connected are attached. It has become.
【0007】この構造は、単なる平板の板状部材に歪み
ゲージを取り付けると、小さなまげ角度でも歪みが大き
くなりすぎ、歪みゲージの出力電圧値が飽和してしまう
問題や、歪みゲージ自体を破損するなどの問題を避ける
ため、このように大きな湾曲部を設けているものであ
る。In this structure, when a strain gauge is attached to a mere flat plate-like member, the strain becomes too large even with a small angle of bending, and the output voltage value of the strain gauge is saturated, and the strain gauge itself is damaged. In order to avoid such problems as described above, such a large curved portion is provided.
【0008】[0008]
【発明が解決しようとする課題】しかしながら、上記の
ような従来の生体用変位センサは、板状部材が大きく湾
曲した構造となっているため、生体の関節部等に取り付
けた際に、この湾曲部が突出しまい、関節部等を動かす
際の障害となり、動作に制限が生じてしまう。例えば、
手術を行っている医療従事者の手首に装着した場合、自
由な作業ができないなどの問題点が生じる。However, since the conventional displacement sensor for a living body as described above has a structure in which the plate-like member is greatly curved, when the sensor is attached to a joint or the like of a living body, the curved member has a curved shape. The portion protrudes, which becomes an obstacle when moving the joints and the like, and restricts the operation. For example,
When worn on the wrist of a medical worker performing surgery, there arises a problem that free work cannot be performed.
【0009】本発明は、上記従来の問題点や事情に鑑み
てなされたものであって、関節部等の運動が自由に出来
る状態でもまげ角度を測定でき、関節部等を動かす際の
障害が生じずに、広い範囲のまげ角度を測定できる生体
用変位センサを提供することを目的とする。The present invention has been made in view of the above-mentioned conventional problems and circumstances, and it is possible to measure a bending angle even in a state where the joints and the like can freely move, and to prevent obstacles when moving the joints and the like. It is an object of the present invention to provide a displacement sensor for a living body that can measure a wide range of angle without causing the displacement.
【0010】[0010]
【課題を解決するための手段】上記課題を解決するため
に、請求項1記載の生体用変位センサは、歪みゲージを
備えたフレキシブルな板状部材を有し、該板状部材の両
端に生体に装着可能な装着部を有する生体用変位センサ
において、前記板状部材に易変形部を備えたことによっ
て、装着した生体の曲げによる板状部材の変位を易変形
部がある程度吸収することにより、まげ角度の測定範囲
を広くすることができる。According to a first aspect of the present invention, there is provided a displacement sensor for a living body having a flexible plate-like member provided with a strain gauge, and a living body at both ends of the plate-like member. In the displacement sensor for a living body having a mounting portion that can be mounted on, by providing the plate-shaped member with the easily deformable portion, the easily deformable portion absorbs the displacement of the plate-shaped member due to bending of the mounted living body to a certain extent, It is possible to widen the measurement range of the angle.
【0011】請求項2記載の生体用変位センサは、前記
易変形部が、歪みゲージを挟んだ前後両方に設けられた
ことによって、片側のみに設けられた場合よりも、より
大きい変位を易変形部が吸収できることにより、より広
い範囲のまげ角度を測定できる。According to a second aspect of the present invention, in the displacement sensor for a living body, since the easily deformable portion is provided both before and after the strain gauge, a larger displacement can be easily deformed than when only one side is provided. Because the part can absorb, it is possible to measure a wider range of angle of birth.
【0012】請求項3記載の生体用変位センサは、前記
易変形部が、蛇腹状に構成されたことによって、装着し
た生体の曲げによる板状部材の変位を蛇腹がある程度吸
収し、さらに、蛇腹状にして板状部材を折り畳んだ構造
であるため、板状部材の実効長を長くできるため、より
広い範囲のまげ角度を測定できる。According to a third aspect of the present invention, in the displacement sensor for a living body, since the easily deformable portion is formed in a bellows shape, the bellows absorbs to some extent the displacement of the plate-like member due to bending of the mounted living body, and furthermore, the bellows Since the plate-shaped member is folded in the shape of a circle, the effective length of the plate-shaped member can be lengthened, so that a wider range of angle can be measured.
【0013】請求項4記載の生体用変位センサは、前記
易変形部が、前記板状部材の他の部分よりも幅狭に構成
されたことによって、装着した生体の曲げによる板状部
材の変位を幅狭に構成された部分がある程度吸収するこ
とにより、まげ角度の測定範囲を広くすることができ
る。According to a fourth aspect of the present invention, there is provided the displacement sensor for a living body, wherein the easily deformable portion is configured to be narrower than the other portion of the plate-like member. Can be expanded to a certain extent by the part configured to be narrow, so that the measurement range of the angle of the bend can be widened.
【0014】請求項5記載の生体用変位センサは、前記
易変形部が、前記板状部材の他の部分よりも肉薄に構成
されたことによって、装着した生体の曲げによる板状部
材の変位を肉薄に構成された部分がある程度吸収するこ
とにより、まげ角度の測定範囲を広くすることができ
る。According to a fifth aspect of the present invention, in the displacement sensor for a living body, since the easily deformable portion is formed thinner than other portions of the plate-like member, displacement of the plate-like member due to bending of the mounted living body is reduced. The absorption range can be widened by absorbing the thinly configured part to some extent.
【0015】請求項6記載の生体用変位センサは、前記
装着部は、前記板状部材の厚み方向とは少なくとも直交
する面に沿って回動自在に構成されたことによって、測
定個所の自由な運動を妨げずに、測定方向である板状部
材の厚み方向以外のまげ動作による影響を少なく抑える
ことができる。According to a sixth aspect of the present invention, in the displacement sensor for a living body, the mounting portion is configured to be rotatable along at least a plane orthogonal to a thickness direction of the plate-shaped member, so that a measuring point can be freely set. It is possible to reduce the influence of the bending motion other than the thickness direction of the plate-shaped member, which is the measurement direction, without hindering the movement.
【0016】請求項7記載の生体用変位センサは、前記
板状部材が合成樹脂であることによって、まげやすい材
質であり、また、加工が容易であり、前記易変形部の形
成が容易である。According to a seventh aspect of the present invention, in the displacement sensor for a living body, since the plate-shaped member is made of a synthetic resin, it is made of a material which is easy to be dazzled, is easily processed, and the easily deformable portion is easily formed. .
【0017】[0017]
【発明の実施の形態】以下、本発明に係る生体用変位セ
ンサの実施の形態について、図面を参照しながら詳細に
説明する。 (第1の実施の形態)図1は、本発明に係る生体用変位
センサの第1の実施の形態を示す全体斜視図である。図
1に示すように、本実施の形態の生体用変位センサ10
は、中央部に歪みゲージ13を備えたフレキシブルな板
状部材11からなり、この板状部材11の両端に生体に
装着可能な装着部17を有した構造であり、歪みゲージ
13と、装着部17との間の板状部材11が、易変形部
12を有している。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the displacement sensor for living body according to the present invention will be described below in detail with reference to the drawings. (First Embodiment) FIG. 1 is an overall perspective view showing a first embodiment of a biological displacement sensor according to the present invention. As shown in FIG. 1, a biological displacement sensor 10 according to the present embodiment
Has a structure in which a flexible plate-shaped member 11 having a strain gauge 13 at the center thereof is provided, and mounting portions 17 that can be mounted on a living body are provided at both ends of the plate-shaped member 11. The plate-shaped member 11 has an easily deformable portion 12.
【0018】この易変形部12は、図1に示すように、
蛇腹状に形成されることにより、変形しやすい構造とな
っている。これにより、装着した生体の曲げによる板状
部材の変位を易変形部がある程度吸収することにより、
まげ角度の測定範囲を広くすることができるものであ
る。また、生体の関節部分等では取り付け可能な長さが
制限されてしまうが、この制限以上の長さを、このよう
に板状部材11を蛇腹で折り畳むことにより、実現でき
るものである。As shown in FIG. 1, the easily deformable portion 12
By being formed in a bellows shape, the structure is easily deformed. This allows the easily deformable portion to absorb to some extent the displacement of the plate-like member due to bending of the mounted living body,
It is possible to widen the measurement range of the angle. In addition, the length that can be attached is limited in a joint part of a living body or the like. However, a length longer than the limit can be realized by folding the plate-shaped member 11 with bellows.
【0019】この易変形部12は、図1においては、歪
みゲージ13と、両側の装着部17との間のそれぞれに
設けられているが、片側のみに設けても良い。Although the easily deformable portion 12 is provided between the strain gauge 13 and the mounting portions 17 on both sides in FIG. 1, it may be provided on only one side.
【0020】この板状部材11はプラスティックなどの
材質で形成することができるが、例えば、ポリカーボネ
ート、アクリル等の合成樹脂等を使用することが好まし
い。The plate-like member 11 can be formed of a material such as plastic, but it is preferable to use, for example, a synthetic resin such as polycarbonate or acrylic.
【0021】歪みゲージ13は、長手方向に対する上下
のまげ角度を検出することができるものであり、板状部
材11が長手方向に伸縮した場合に歪みが生じ、歪みゲ
ージ13内に設けられた抵抗ブリッジ回路パターンの抵
抗値が変化するものである。The strain gauge 13 is capable of detecting a vertical bending angle with respect to the longitudinal direction. When the plate-like member 11 expands and contracts in the longitudinal direction, a strain is generated, and the resistance provided in the strain gauge 13 is increased. The resistance value of the bridge circuit pattern changes.
【0022】歪みゲージ13の抵抗ブリッジ回路パター
ンの出力端子には、半田等を用いて電気的に接続した出
力リード線14a、14bが取り付けられている。そし
て、この2本の出力リード線14a、14bを電源装
置、電圧増幅器、電圧計等の電気測定に必要な装置(図
示せず)を接続して、両出力リード線間の電圧変化を測
定することにより、生体に取り付けた部分(関節など)
のまげ角度が検出できるものである。The output terminals of the resistance bridge circuit pattern of the strain gauge 13 are provided with output lead wires 14a and 14b which are electrically connected using solder or the like. Then, these two output leads 14a and 14b are connected to a device (not shown) required for electrical measurement such as a power supply, a voltage amplifier, and a voltmeter, and a voltage change between the two output leads is measured. The part attached to the living body (joint, etc.)
Can be detected.
【0023】装着部17は、板状部材11の厚み方向と
は少なくとも直交する面に沿って回動自在に構成されて
いる。例えば、図5の装着部の断面図に示すように、板
状部材11に接着剤等により取り付けられたセンサ側嵌
合部材15と、生体側嵌合部材16とが、円柱形の嵌合
部15aを生体側嵌合部材16に押し込むことにより、
嵌合する構造となっており、図の水平方向に自由に回動
することができるようになっている。また、この嵌合部
15aは、回動自在であれば、球形などの他の形状でも
良い。The mounting portion 17 is configured to be rotatable along at least a plane orthogonal to the thickness direction of the plate-shaped member 11. For example, as shown in the cross-sectional view of the mounting portion in FIG. 5, the sensor-side fitting member 15 and the living body-side fitting member 16 attached to the plate-like member 11 with an adhesive or the like have a cylindrical fitting portion. By pushing 15a into the living body side fitting member 16,
It has a fitting structure, and can freely rotate in the horizontal direction in the figure. The fitting portion 15a may have another shape such as a spherical shape as long as it is rotatable.
【0024】装着部17の生体への固定方法は、生体に
直接粘着ゲル等を用いて接着する方法、衣服等に対して
縫いつける方法、ゴム手袋に接着剤を塗布して接着する
方法等を用いることができる。As a method of fixing the mounting portion 17 to the living body, a method of directly bonding to the living body using an adhesive gel or the like, a method of sewing on clothes or the like, a method of applying an adhesive to rubber gloves, and the like are used. be able to.
【0025】本実施の形態の生体用変位センサ10を実
際に手首に装着した状態の外観図を、図2に示す。図2
に示すように、生体用変位センサの一方の装着部を手の
甲に、他方の装着部を手首の部分に、粘着ゲル等を用い
て接着して固定する。FIG. 2 is an external view showing a state in which the living body displacement sensor 10 of the present embodiment is actually mounted on a wrist. FIG.
As shown in (1), one mounting portion of the living body displacement sensor is fixed to the back of the hand and the other mounting portion is fixed to the wrist portion by using an adhesive gel or the like.
【0026】この生体用変位センサ10の装着位置は、
手首を上下に傾けた角度を測定する位置であり、図の矢
印に示すように、装着部が水平方向に自由に回動するた
め、手首を左右に振ったまげ角度の変位は検出しないも
のである。もし、手首を左右に振ったまげ角度を測定し
たい場合は、手首側面に、生体用変位センサ10を装着
する(図示せず)ことにより、左右に振ったまげ角度の
みを検出できる。The mounting position of the biological displacement sensor 10 is as follows.
This is a position for measuring the angle at which the wrist is tilted up and down, and as shown by the arrow in the figure, since the mounting portion freely rotates in the horizontal direction, the displacement of the brow angle that the wrist is swung right and left is not detected. . If the user wants to measure the angle of the wrist swung right and left, the living body displacement sensor 10 is attached to the side surface of the wrist (not shown), so that only the angle of the swung right and left can be detected.
【0027】次に、本実施の形態の生体用変位センサ
と、(一切折り曲げていない)平板状の板状部材に歪み
ゲージを取り付けたものとの比較を、上述の図2のよう
に手首に装着した場合において、手首のまげ角度と、出
力電圧の変化との対応を示したグラフを図6に示す。Next, a comparison between the displacement sensor for living body of the present embodiment and a sensor in which a strain gauge is attached to a flat plate member (not bent at all) is attached to the wrist as shown in FIG. FIG. 6 is a graph showing the correspondence between the bristles angle of the wrist and the change of the output voltage in the case of wearing.
【0028】図6において、グラフの横軸は、手首のま
げ角度であり、縦軸は外部の測定装置で測定された電圧
変化値(V)である。この電圧変化値(V)は、増幅度
5000倍、ブリッジ電圧1Vで測定した。In FIG. 6, the horizontal axis of the graph is the wrist angle, and the vertical axis is the voltage change value (V) measured by an external measuring device. This voltage change value (V) was measured at an amplification factor of 5,000 and a bridge voltage of 1 V.
【0029】このグラフで明らかなように、平らなプラ
スティック板を板状部材とした同じ長さの生体用変位セ
ンサは、まげ角度が30度以下で出力電圧が飽和し、測
定不能となった。これに対して、本実施の形態の生体用
変位センサは、まげ角度が100度まで測定可能であっ
た。これは、板状部材を蛇腹で折り畳むことにより、実
効的な板状部材の長さを長くできたことのよるものであ
る。As is apparent from this graph, the displacement sensor for a living body having the same length using a flat plastic plate as a plate-shaped member saturates the output voltage at a bend angle of 30 degrees or less, making measurement impossible. On the other hand, the displacement sensor for a living body according to the present embodiment was able to measure up to 100 degrees of the bald angle. This is because the effective length of the plate member can be increased by folding the plate member with bellows.
【0030】(第2の実施の形態)図3は、本発明に係
る生体用変位センサの第2の実施の形態を示す要部の斜
視図である。図3に示すように、本実施の形態は、板状
部材11の他の部分よりも幅狭に構成された易変形部1
2を有していることを特徴としている。他の構成部分に
関しては、第1の実施の形態と同様に構成されているも
のである。(Second Embodiment) FIG. 3 is a perspective view of a main part of a displacement sensor for living body according to a second embodiment of the present invention. As shown in FIG. 3, in the present embodiment, the easily deformable portion 1 configured to be narrower than other portions of the plate-like member 11 is provided.
2 is provided. The other components are configured in the same manner as in the first embodiment.
【0031】(第3の実施の形態)図4は、本発明に係
る生体用変位センサの第3の実施の形態を示す要部の断
面図である。図4に示すように、本実施の形態は、板状
部材11の他の部分よりも肉薄に構成された易変形部1
2を有していることを特徴としている。他の構成部分に
関しては、第1の実施の形態と同様に構成されているも
のである。(Third Embodiment) FIG. 4 is a sectional view of a main part of a displacement sensor for living body according to a third embodiment of the present invention. As shown in FIG. 4, in the present embodiment, the easily deformable portion 1 is configured to be thinner than other portions of the plate-shaped member 11.
2 is provided. The other components are configured in the same manner as in the first embodiment.
【0032】[0032]
【発明の効果】以上詳述したとおり、本発明に係る請求
項1の生体用変位センサによれば、歪みゲージを備えた
フレキシブルな板状部材を有し、その両端に生体に装着
可能な装着部を有し、板状部材に易変形部を備えたこと
によって、装着した生体の曲げによる板状部材の変位を
易変形部がある程度吸収することにより、まげ角度の測
定範囲を広くすることができるので、関節部等の運動が
自由に出来る状態でもまげ角度を測定でき、関節部等を
動かす際の障害が生じずに、広い範囲のまげ角度を測定
できる生体用変位センサを提供することことができるも
のである。As described above in detail, according to the displacement sensor for living body according to the first aspect of the present invention, a flexible plate-shaped member having a strain gauge is provided, and both ends thereof can be attached to a living body. By providing the plate member with the easily deformable portion, the displacement of the plate member due to bending of the attached living body is absorbed to some extent by the easy deformable portion, so that the measurement range of the bending angle can be widened. Provided is a displacement sensor for a living body that can measure a bending angle even when a joint or the like can freely move, and can measure a wide range of the bending angle without causing an obstacle when moving the joint or the like. Can be done.
【0033】請求項2記載の生体用変位センサによれ
ば、前記易変形部が、歪みゲージを挟んだ前後両方に設
けられたことによって、片側のみに設けられた場合より
も、より大きい変位を易変形部が吸収できることによ
り、より広い範囲のまげ角度を測定できる。According to the displacement sensor for living body of the present invention, since the easily deformable portion is provided both before and after the strain gauge, a larger displacement can be provided than when only one side is provided. By absorbing the easily deformable portion, it is possible to measure a wider range of the angle of bending.
【0034】請求項3記載の生体用変位センサによれ
ば、前記易変形部が、蛇腹状に構成されたことによっ
て、装着した生体の曲げによる板状部材の変位を蛇腹が
ある程度吸収し、さらに、蛇腹状にして板状部材を折り
畳んだ構造であるため、板状部材の実効長を長くできる
ため、より広い範囲のまげ角度を測定できる。According to the displacement sensor for a living body according to the third aspect, since the easily deformable portion is formed in a bellows shape, the bellows absorbs the displacement of the plate-like member due to the bending of the mounted living body to a certain extent. Since the plate-like member is folded in a bellows shape, the effective length of the plate-like member can be increased, so that a wider range of angle can be measured.
【0035】請求項4記載の生体用変位センサによれ
ば、前記易変形部が、前記板状部材の他の部分よりも幅
狭に構成されたことによって、装着した生体の曲げによ
る板状部材の変位を幅狭に構成された部分がある程度吸
収することにより、まげ角度の測定範囲を広くすること
ができる。According to the displacement sensor for a living body of the fourth aspect, since the easily deformable portion is configured to be narrower than the other portion of the plate-like member, the plate-like member caused by bending of the mounted living body. The displacement of the angle can be absorbed to some extent by the portion configured to be narrow, so that the measurement range of the bending angle can be widened.
【0036】請求項5記載の生体用変位センサによれ
ば、前記易変形部が、前記板状部材の他の部分よりも肉
薄に構成されたことによって、装着した生体の曲げによ
る板状部材の変位を肉薄に構成された部分がある程度吸
収することにより、まげ角度の測定範囲を広くすること
ができる。According to the displacement sensor for a living body of the fifth aspect, the easily deformable portion is formed thinner than the other portion of the plate-like member. By absorbing the displacement to a certain extent by the thinly configured portion, the range of measurement of the angle of bending can be widened.
【0037】請求項6記載の生体用変位センサによれ
ば、前記装着部は、前記板状部材の厚み方向とは少なく
とも直交する面に沿って回動自在に構成されたことによ
って、測定個所の自由な運動を妨げずに、測定方向であ
る板状部材の厚み方向以外のまげ動作による影響(ノイ
ズ)を少なく抑えることができる。また、この構成によ
り、装着部を生体に直接粘着ゲル等を用いて接着する方
法、衣服等に対して装着部を縫いつける方法、ゴム手袋
に接着剤を塗布して装着部を接着する方法等に対応する
ことができる。According to the displacement sensor for living body of the sixth aspect, the mounting portion is rotatable along at least a plane orthogonal to the thickness direction of the plate-shaped member, so that the measuring portion can be provided at the measuring point. The effect (noise) due to the bending motion other than the thickness direction of the plate-shaped member, which is the measurement direction, can be suppressed without hindering the free movement. In addition, with this configuration, there are a method of directly bonding the mounting portion to the living body using an adhesive gel, a method of sewing the mounting portion to clothes, a method of applying an adhesive to a rubber glove, and a method of bonding the mounting portion. Can respond.
【0038】請求項7記載の生体用変位センサは、前記
板状部材が合成樹脂であることによって、まげやすい材
質であるので、生体の自由な運動を妨げることがないも
のである。また、加工が容易であり、前記易変形部の形
成が容易である。さらに、安価に製造することができ
る。In the displacement sensor for a living body according to the seventh aspect, since the plate-shaped member is made of a synthetic resin and is made of a material that is easy to bend, the free movement of the living body is not hindered. Further, processing is easy, and formation of the easily deformable portion is easy. Furthermore, it can be manufactured at low cost.
【0039】以上、本発明の生体用変位センサは、リハ
ビリテーションやスポーツ等に関する研究で関節部等の
動きをリアルタイムに測定したり、手術を行っている医
療従事者の手首の動きをリアルタイムに測定するなど、
コンピュータによるバーチャルリアリティーを用いた表
示を行う際のまげ角度の測定に適した生体用変位センサ
を提供できるものである。As described above, the living body displacement sensor of the present invention measures the movement of a joint or the like in real time in research on rehabilitation, sports, and the like, and measures the movement of the wrist of a medical worker performing surgery in real time. Such,
An object of the present invention is to provide a displacement sensor for a living body suitable for measuring a bending angle when performing display using virtual reality by a computer.
【図1】本発明に係る生体用変位センサの第1の実施の
形態を示す全体斜視図である。FIG. 1 is an overall perspective view showing a first embodiment of a biological displacement sensor according to the present invention.
【図2】図1の生体用変位センサを実際に手首に装着し
た状態を説明する外観図である。FIG. 2 is an external view illustrating a state where the biological displacement sensor of FIG. 1 is actually mounted on a wrist.
【図3】本発明に係る生体用変位センサの第2の実施の
形態を示す要部斜視図である。FIG. 3 is a perspective view of a main part showing a second embodiment of the displacement sensor for a living body according to the present invention.
【図4】本発明に係る生体用変位センサの第3の実施の
形態を示す要部断面図である。FIG. 4 is a cross-sectional view of a main part showing a third embodiment of the displacement sensor for living body according to the present invention.
【図5】本発明に係る生体用変位センサの装着部の断面
図である。FIG. 5 is a sectional view of a mounting portion of the displacement sensor for living body according to the present invention.
【図6】図2の状態において測定した、手首の角度と、
出力電圧の変化との対応を示すグラフである。FIG. 6 shows the wrist angle measured in the state of FIG.
6 is a graph showing a correspondence with a change in output voltage.
【図7】従来の生体用変位センサの全体斜視図である。FIG. 7 is an overall perspective view of a conventional displacement sensor for living body.
11 板状部材 12 易変形部 13 歪みゲージ 14a、14b 出力リード線 15a 嵌合部 15 センサ側嵌合部材 16 生体側嵌合部材 17 装着部 20 生体用変位センサ 21 板状部材 22 湾曲部 23 歪みゲージ 24a、24b 出力リード線 REFERENCE SIGNS LIST 11 plate member 12 easily deformable portion 13 strain gauge 14 a, 14 b output lead wire 15 a fitting portion 15 sensor side fitting member 16 living body side fitting member 17 mounting portion 20 displacement sensor 21 for living body 21 plate member 22 curved portion 23 distortion Gauge 24a, 24b Output lead wire
フロントページの続き Fターム(参考) 2F063 AA33 BA29 DA02 DA05 EC00 LA27 2F077 AA49 CC02 EE07 VV02 VV33 4C038 VA03 VB12 VB14 VC20 Continued on the front page F term (reference) 2F063 AA33 BA29 DA02 DA05 EC00 LA27 2F077 AA49 CC02 EE07 VV02 VV33 4C038 VA03 VB12 VB14 VC20
Claims (7)
部材を有し、該板状部材の両端に生体に装着可能な装着
部を有する生体用変位センサにおいて、前記板状部材に
易変形部を備えたことを特徴とする生体用変位センサ。1. A living body displacement sensor having a flexible plate-shaped member provided with a strain gauge and having mounting portions that can be mounted on a living body at both ends of the plate-shaped member, wherein the plate-shaped member has an easily deformable portion. A displacement sensor for a living body, comprising:
いて、前記易変形部が、歪みゲージを挟んだ前後両方に
設けられたことを特徴とする生体用変位センサ。2. The displacement sensor for a living body according to claim 1, wherein the easily deformable portion is provided both before and after the strain gauge.
いて、前記易変形部が、蛇腹状に構成されたことを特徴
とする生体用変位センサ。3. The displacement sensor for a living body according to claim 2, wherein the easily deformable portion is formed in a bellows shape.
いて、前記易変形部が、前記板状部材の他の部分よりも
幅狭に構成されたことを特徴とする生体用変位センサ。4. The biological displacement sensor according to claim 2, wherein the easily deformable portion is configured to be narrower than other portions of the plate-shaped member.
いて、前記易変形部が、前記板状部材の他の部分よりも
肉薄に構成されたことを特徴とする生体用変位センサ。5. The displacement sensor for a living body according to claim 2, wherein the easily deformable portion is configured to be thinner than other portions of the plate-shaped member.
変位センサにおいて、前記装着部は、前記板状部材の厚
み方向とは少なくとも直交する面に沿って回動自在に構
成されたことを特徴とする生体用変位センサ。6. The displacement sensor for a living body according to claim 1, wherein the mounting portion is configured to be rotatable along a plane at least orthogonal to a thickness direction of the plate-shaped member. A displacement sensor for a living body, comprising:
変位センサにおいて、前記板状部材が合成樹脂であるこ
とを特徴とする生体用変位センサ。7. The displacement sensor for a living body according to claim 1, wherein said plate-shaped member is made of a synthetic resin.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040017378A (en) * | 2002-08-21 | 2004-02-27 | 주식회사 바이오프로테크 | A sensor unit of a instrument for measuring oxygen-saturation |
JP2005095197A (en) * | 2003-09-22 | 2005-04-14 | Hitachi Ltd | Biological testing apparatus |
JP2009109337A (en) * | 2007-10-30 | 2009-05-21 | Minebea Co Ltd | Bend sensor |
JP2009539116A (en) * | 2006-05-30 | 2009-11-12 | ザ・ティムケン・カンパニー | Displacement, strain and force sensors |
WO2016029032A1 (en) | 2014-08-20 | 2016-02-25 | Matthew Rickard | Systems and methods for monitoring eye health |
CN112384747A (en) * | 2018-07-05 | 2021-02-19 | 艾格非戈有限公司 | Measuring device |
-
2000
- 2000-05-16 JP JP2000143190A patent/JP3896533B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040017378A (en) * | 2002-08-21 | 2004-02-27 | 주식회사 바이오프로테크 | A sensor unit of a instrument for measuring oxygen-saturation |
JP2005095197A (en) * | 2003-09-22 | 2005-04-14 | Hitachi Ltd | Biological testing apparatus |
JP2009539116A (en) * | 2006-05-30 | 2009-11-12 | ザ・ティムケン・カンパニー | Displacement, strain and force sensors |
JP2009109337A (en) * | 2007-10-30 | 2009-05-21 | Minebea Co Ltd | Bend sensor |
WO2016029032A1 (en) | 2014-08-20 | 2016-02-25 | Matthew Rickard | Systems and methods for monitoring eye health |
EP3182881A4 (en) * | 2014-08-20 | 2018-04-25 | California Baptist University | Systems and methods for monitoring eye health |
CN112384747A (en) * | 2018-07-05 | 2021-02-19 | 艾格非戈有限公司 | Measuring device |
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