JP6262379B1 - 荷重測定用ピンセンサ、見守り用ベッド及び見守りシステム - Google Patents
荷重測定用ピンセンサ、見守り用ベッド及び見守りシステム Download PDFInfo
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- JP6262379B1 JP6262379B1 JP2017031596A JP2017031596A JP6262379B1 JP 6262379 B1 JP6262379 B1 JP 6262379B1 JP 2017031596 A JP2017031596 A JP 2017031596A JP 2017031596 A JP2017031596 A JP 2017031596A JP 6262379 B1 JP6262379 B1 JP 6262379B1
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- 238000012545 processing Methods 0.000 claims description 19
- 238000012544 monitoring process Methods 0.000 claims description 10
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- 238000001514 detection method Methods 0.000 description 27
- 230000005484 gravity Effects 0.000 description 21
- 238000000034 method Methods 0.000 description 13
- 230000029058 respiratory gaseous exchange Effects 0.000 description 10
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/0527—Weighing devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
-
- 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
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1113—Local tracking of patients, e.g. in a hospital or private home
- A61B5/1115—Monitoring leaving of a patient support, e.g. a bed or a wheelchair
-
- 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
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6891—Furniture
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
- G01L1/2225—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction the direction being perpendicular to the central axis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
- G01M1/122—Determining position of centre of gravity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
- A61G2203/20—Displays or monitors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/32—General characteristics of devices characterised by sensor means for force
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/36—General characteristics of devices characterised by sensor means for motion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/44—General characteristics of devices characterised by sensor means for weight
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Nursing (AREA)
- General Physics & Mathematics (AREA)
- Cardiology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Pulmonology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Invalid Beds And Related Equipment (AREA)
- Measurement Of Force In General (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Description
又、前記受感部を、横断面が長方形である角柱形状とすることができる。
まず、1.電源投入直後及びリセット直後の荷重用AD値を0オフセット値とする。
次いで、2.ベッド上に荷重を加えた際の荷重用AD値から0オフセット値を減算した値に、ピンセンサごとの感度の違いを補正するための感度補正係数を乗じる。これがピンセンサごとの荷重値となる。
次いで、3.ピンセンサごとの荷重値を合計することで、ベッド上荷重値を検出することができる。
・右頭センサ71上と左頭センサ72上の2点
・右頭センサ71上と右足センサ73上の2点
・左頭センサ72上と左足センサ74上の2点
・右足センサ73上と左足センサ74上の2点
1B)ベッド上で4点の合計に対して左頭荷重割合となる可能性のある重心位置を、荷重テーブルから線形補間により算出する。図13では左頭荷重割合が10%となる位置の線形補間の例を示している。
1C)右頭荷重割合10%の線形補間ラインと左頭荷重割合10%の線形補間ラインの交点を算出する。これが右頭センサ71上と左頭センサ72の2点間の重心位置となる(図13参照)。
・右頭センサ71上と左頭センサ72上の2点
・右頭センサ71上と右足センサ73上の2点
・左頭センサ72上と左足センサ74上の2点
・右足センサ73上と左足センサ74上の2点
10…電動ベッド
20…上フレーム
30、36、54、60…横パイプ
32、34、38、40、56、58、62、64…ステー
50…下フレーム
70…ピンセンサ
71〜74…連結ピン
80、82…力点部
81、83…受感部
84…支点部
86…軸部
90…歪ゲージ
100…信号処理ユニット
102…荷重用信号増幅部
104…生体オフセット追従部
106…生体用信号増幅部
108A、108B…生体用A/D変換部
110…生体信号検出部
110A…呼吸検出部
110B…心拍検出部
110C…生体オフセット追従処理部
112A、112B、112C、112D…荷重用A/D変換部
114…荷重/重心検出部
114A…荷重/重心テーブル
114B…荷重検出部
114C…重心検出部
116…離在床検出部
116A…在床検出部
116B…起床検出部
116C…離床検出部
118…通信部
120…表示部
120A…荷重表示部
120B…重心表示部
120C…呼吸数表示部
120D…心拍数表示部
200…モニタカメラ
210…画像認識ユニット
Claims (7)
- ベッドの複数のフレームの連結部に連結ピンとして挿入される荷重測定用ピンセンサであって、
前記連結ピンを構成する軸部と、
該軸部に設けられた、一方のフレームの荷重が作用する力点部と、
同じく前記軸部の前記力点部と異なる位置に設けられた、他方のフレームの応力が作用する支点部と、
前記軸部の前記力点部と支点部を連結する部分に設けられた受感部と、
該受感部に発生する歪を検出する歪ゲージと、
を備え、
前記力点部及び支点部の一方の横断面が、前記軸部より大きい円形以外の形とされ、対応するフレーム側のピンセンサ受入部も、前記円形以外の形に対応する形状とされて、回転しないようにされると共に、
前記力点部及び支点部の他方のフレーム側と接触する部分が球形状とされていることを特徴とする荷重測定用ピンセンサ。 - 前記一方の横断面が、前記軸部の長手方向中央にある支点部の横断面であることを特徴とする請求項1に記載の荷重測定用ピンセンサ。
- 前記円形以外の形が四角であることを特徴とする請求項1又は2に記載の荷重測定用ピンセンサ。
- 前記受感部が、横断面が長方形である角柱形状とされていることを特徴とする請求項1乃至3のいずれかに記載の荷重測定用ピンセンサ。
- 請求項1乃至4のいずれかに記載の荷重測定用ピンセンサを備えたことを特徴とする見守り用ベッド。
- 請求項1乃至4のいずれかに記載の荷重測定用ピンセンサを備えた見守り用ベッドと、
前記荷重測定用ピンセンサの出力を処理して生体信号を得る信号処理ユニットと、
該信号処理ユニットの処理結果を表示する表示手段と、
を備えたことを特徴とする見守りシステム。 - ベッド上の測定対象を監視するモニタカメラを更に含むことを特徴とする請求項6に記載の見守りシステム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2017031596A JP6262379B1 (ja) | 2017-02-22 | 2017-02-22 | 荷重測定用ピンセンサ、見守り用ベッド及び見守りシステム |
US15/900,131 US10285886B2 (en) | 2017-02-22 | 2018-02-20 | Load measuring pin sensor, watching bed, and watching system |
CN201810154181.1A CN108414070B (zh) | 2017-02-22 | 2018-02-22 | 荷重测量用销轴传感器、看护用床以及看护系统 |
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JP2017031596A JP6262379B1 (ja) | 2017-02-22 | 2017-02-22 | 荷重測定用ピンセンサ、見守り用ベッド及び見守りシステム |
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JP2017147188A Division JP6345322B1 (ja) | 2017-07-28 | 2017-07-28 | 見守りシステム |
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JP6262379B1 true JP6262379B1 (ja) | 2018-01-17 |
JP2018134278A JP2018134278A (ja) | 2018-08-30 |
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US (1) | US10285886B2 (ja) |
JP (1) | JP6262379B1 (ja) |
CN (1) | CN108414070B (ja) |
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US11096852B2 (en) * | 2017-06-01 | 2021-08-24 | Liko Research & Development Ab | Systems for monitoring person lifting devices using load tension pins |
CN109612402A (zh) * | 2019-01-09 | 2019-04-12 | 北京全路通信信号研究设计院集团有限公司 | 一种光纤传感销轴装置和销轴装置应力应变检测方法 |
SE544251C2 (en) * | 2020-07-06 | 2022-03-15 | Arjo Ip Holding Ab | Patient handling apparatus comprising a weighing arrangement |
JP7457625B2 (ja) * | 2020-10-07 | 2024-03-28 | パラマウントベッド株式会社 | ベッドシステム |
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US20180235822A1 (en) | 2018-08-23 |
US10285886B2 (en) | 2019-05-14 |
CN108414070A (zh) | 2018-08-17 |
CN108414070B (zh) | 2019-11-08 |
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