JP2008253714A - Respiratory movement monitor pickup - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that in the case of a conventional respiration sensor, it is difficult for an experimenter to fit it to a body while appropriately fitting a body shape of a subject or wear feeling and to fix initial value of a detection part, so that it is impossible to improve measurement precision, which is caused by a detection part and a band part being joined and integrated. <P>SOLUTION: A respiratory movement monitor pickup comprises two different functional elements, of a belt part provided with an elastic member for converting movement of a chest wall and an abdominal wall as a respiratory movement into a change of an ambient length on a body surface of a chest part or abdominal part and a sensor part for measuring expansion/contraction of the elastic member by the length, wherein by using a hook-and-loop fastener and attaching the sensor part to the belt part in a removable manner, the belt part can be easily fitted and, even when a state of fitting differs among experimenters or in one experimenter, the initial value when measuring can be precisely set and read. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a pickup that detects the movement of a chest wall and an abdominal wall that function as a breathing pump of a living body by converting the movement of the circumference of a body such as the chest and the abdomen into a change in circumference.

In a conventional breathing sensor, a detecting unit having elasticity and a non-stretching band unit are connected and integrated to form an annular shape that goes around the torso, and the detecting unit according to expansion / contraction of the torso by breathing There is one that detects respiration by utilizing the expansion and contraction of the body (for example, see Patent Documents 1 and 2).
In addition, there is also a configuration in which a portion corresponding to a band is formed into a non-stretchable vest shape and a stretchable detection portion is attached to a front opening portion to form a ring around the trunk (for example, Patent Documents) 3).

Hereinafter, a conventional respiration sensor will be described with reference to FIGS. In FIG. 5, reference numeral 10 denotes a detection unit, for example, a detection unit whose electric resistance changes when a rubber tube filled with carbon fine powder or mercury is expanded or contracted. Both ends of the detection unit are connected to both ends of the band unit 11, and the detection unit is an indispensable part for forming a ring.
In FIG. 6, reference numeral 12 denotes a detection unit having a casing shape, and one end of the band unit 11 is connected to a coil spring provided with a fulcrum inside the casing, or connected to a rotating drum using a mainspring spring, The other end of the band part is fixed outside the casing. The detector measures the degree of expansion and contraction of the coil spring that expands and contracts due to the elasticity of the spring or the rotation angle of the drum that rotates via the mainspring spring according to breathing, using an encoder or the like housed inside the casing ( For example, see Patent Document 2.)
3-56410 JP2001-17409 JP-A-10-99299

  In the conventional respiration sensor described above, it is indispensable to connect and integrate the stretchable detection part and the non-stretchable band part so as to be in close contact with the body part and form an annular shape. For this reason, it is difficult for the experimenter to determine the initial value of the detection unit by wearing the respiration sensor appropriately corresponding to the body shape and wearing feeling of the subject, and there is a problem that the measurement accuracy cannot be increased. .

  The present invention is intended to solve the problem of such a conventional structure, makes it possible to easily and accurately set the initial value of the detection unit, and simplify the mounting procedure. Accordingly, it is an object of the present invention to realize a respiratory motion monitor pickup having excellent reproducibility and high measurement accuracy.

  In order to achieve the above-mentioned object, the present invention provides a belt unit provided with a stretchable member that is attached to the torso and converts the movement of the chest wall and the abdominal wall into a change in the peripheral length of the chest and the abdomen torso surface; It is composed of two different functional elements called a sensor unit that measures the expansion and contraction of the sensor in a unit of length, and the sensor unit is attached to the belt unit in a detachable manner using a hook-and-loop fastener.

  The operation of the above problem solving means is as follows. That is, the change in the peripheral length on the body surface accompanying the breathing exercise is concentrated on the stretchable portion of the belt portion made of the stretchable member and the non-stretchable member. By making the sensor part independent from the belt part, the sensor part is attached with a hook-and-loop fastener at the position where the elastic member of the belt part is sandwiched after the belt part is attached. Even if they are different, the initial value can be set easily and accurately.

  As described above, the respiratory motion monitor pickup according to the present invention bisects the device functionally and structurally, so that the experimenter can easily place the belt portion on the body surface of the subject without being troubled by the difficulty of setting the initial value. It can be attached closely. After attaching the belt, the sensor portion is attached with a hook-and-loop fastener in accordance with the extension of the elastic member, so that the initial value at the time of measurement can be set and read accurately, and a pickup with high measurement accuracy can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In the figure, 1 is a non-stretchable member of a belt portion that is attached in close contact with the body surface, 2 is a capsular belt-like stretchable member having rubber elasticity, and is attached to a non-stretchable member via a hard connector 3. It is connected. 4 is a hook-and-loop fastener affixed to both ends of the belt for attaching and detaching the belt, 5 is a holder for preventing the belt from shifting, and 6 is a hook-and-loop fastener for attaching and detaching the sensor. Reference numeral 7 denotes a wire type linear encoder body, 8 denotes a wire, and 9 denotes a wire fixing tool.

  The operation of the above configuration will be described below. First, when attaching the belt part in close contact with the body surface of the subject, one end of the belt is crimped with a hook-and-loop fastener through a holder for preventing displacement, but the sensor part is independent, so it is necessary to consider the load on the sensor Therefore, the subject can be easily put on with a suitable tension that does not cause unnecessary pressure and discomfort.

  In addition, after the belt portion is mounted, the sensor portion attaches the wire type linear encoder body 7 and the wire fixture 9 with the sensor portion attaching / detaching surface fastener 6 attached to a position where the elastic member 2 of the belt portion is sandwiched. Therefore, the initial value at the time of measurement can be set and read easily and accurately. As described above, according to this embodiment, a simple and highly accurate pickup can be obtained.

  External view of respiratory motion monitor pickup showing an embodiment of the present invention   Development view showing the belt surface   Development view showing the back of the belt   Partial view showing the sensor part and the sensor attaching / detaching surface fastener   Conceptual diagram of a respiration sensor that integrates a conventional rubber tube detector and band.   Conceptual diagram of a respiration sensor that integrates a conventional housing-type detector and band

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Belt part non-stretchable member 2 Belt part stretchable member 7 Wire type linear encoder body 8 Wire type linear encoder wire 9 Wire type linear encoder wire fixture

Claims (1)

  A belt part equipped with a stretchable member that is attached to the torso and converts the movement of the chest wall and abdominal wall into a change in the perimeter of the chest and abdominal body surface, and a sensor part that measures the stretch of the stretchable member in units of length Respiratory motion monitor pickup comprising the two different functional elements and attaching the sensor part to the belt part in a removable manner using a hook-and-loop fastener.

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