JP3163409B2 - Probe for pulse oximeter - Google Patents
Probe for pulse oximeterInfo
- Publication number
- JP3163409B2 JP3163409B2 JP05354694A JP5354694A JP3163409B2 JP 3163409 B2 JP3163409 B2 JP 3163409B2 JP 05354694 A JP05354694 A JP 05354694A JP 5354694 A JP5354694 A JP 5354694A JP 3163409 B2 JP3163409 B2 JP 3163409B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- blood
- light emitting
- head
- fetus
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、子宮内の胎児の頭部の
皮膚の血管内の血液の脈動を検知して、破水から出産ま
での血液の酸素飽和度などを測定するパルスオキシメー
タ用プローブに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulse oximeter for detecting the pulsation of blood in blood vessels in the skin of the fetus's head in the uterus and measuring the oxygen saturation of blood from rupture to birth. Regarding the probe.
【０００２】[0002]
【従来の技術】生体の血管内の血液の脈動を検出して、
血液の酸素飽和度などを測定するパルスオキシメータ用
プローブとしては、足、手、耳朶などに装着するプロー
ブが従来から知られている。2. Description of the Related Art The pulsation of blood in a blood vessel of a living body is detected,
2. Description of the Related Art As a probe for a pulse oximeter for measuring oxygen saturation of blood or the like, a probe attached to a foot, a hand, an earlobe, or the like is conventionally known.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら従来のパ
ルスオキシメータ用プローブは発光素子と受光素子とで
測定部位を挾持し、その間を透過する光の量を計測する
ものであるため、出産途中の胎児のように産道から頭の
一部しか捉えることのできない被測定体にあっては測定
部位の挾持が難かしく、破水から出産までの胎児の血液
の脈動を検出することは、従来は困難であった。However, since the conventional probe for a pulse oximeter has a light-emitting element and a light-receiving element sandwiching a measurement site and measuring the amount of light transmitted therethrough, a fetus during childbirth has a problem. It is difficult to pinch the measurement site in a subject that can only capture a part of the head from the birth canal, and it has been difficult to detect the pulsation of fetal blood from rupture to delivery. Was.
【０００４】本発明はこのような状況に鑑みてなされた
もので、子宮内の胎児の破水から出産までの血液の脈動
を検出し、血液の酸素飽和度などを測定することのでき
るパルスオキシメータ用プローブを提供することを目的
とする。The present invention has been made in view of such circumstances, and a pulse oximeter capable of detecting the pulsation of blood in a uterus from the breakage of a fetus to childbirth and measuring the oxygen saturation and the like of the blood. The purpose of the present invention is to provide a probe.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、発光部から発する光を胎児の頭部に照射
し、透過または反射光を受光部で受光して、前記頭部の
皮膚の血管内の血液の脈動を検出するパルスオキシメー
タ用プローブであって、湾曲に形成された支持部材に胎
児の頭部に皮膚の一部が入るような孔部を設け、該孔部
に前記発光部と受光部とを所定の間隔を介して対向配置
したことを特徴としている。In order to achieve the above object, the present invention provides a method for irradiating light emitted from a light emitting section to the head of a fetus, receiving transmitted or reflected light at a light receiving section, A pulse oximeter probe for detecting blood pulsation in blood vessels of the skin, wherein a hole is provided in a curved support member so that a part of the skin enters the head of a fetus, The light emitting unit and the light receiving unit are arranged to face each other with a predetermined interval therebetween.
【０００６】[0006]
【作用】上記の構成によると、支持部材を子宮内に挿入
して胎児の頭部に装着すると、支持部材は湾曲している
ので頭部に密着させることができる。このとき発光部と
受光部との間の支持部材には孔部が形成されているの
で、柔軟な頭部の皮膚を発光部と受光部との間に入れる
ことができ、透過光により皮膚の血管内を流れる血液の
脈動を確実に検出することができる。According to the above arrangement, when the support member is inserted into the uterus and attached to the head of the fetus, the support member is curved and can be brought into close contact with the head. At this time, a hole is formed in the support member between the light emitting unit and the light receiving unit, so that the skin of the flexible head can be inserted between the light emitting unit and the light receiving unit, and the transmitted light allows the skin to be cut off. The pulsation of the blood flowing in the blood vessel can be reliably detected.
【０００７】[0007]
【実施例】以下、本発明のパルスオキシメータ用プロー
ブの一実施例を図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the probe for a pulse oximeter of the present invention will be described below with reference to the drawings.
【０００８】図１乃至図４に本発明の一実施例の構成を
示す。図１乃至図４において、先端の角をとり基端を先
細りに形成された支持部材１はシリコンシートにより湾
曲して構成されている。この支持部材１の湾曲部の曲率
は胎児の頭部の曲率に等しいか大きくなっており、装着
時に頭部表面に密着するようになっている。支持部材１
は３層のシリコンシート２，３，４が積層されて構成さ
れており、上層のシリコンシート２には十字状の孔部５
が形成されている。また中層のシリコンシート３の孔部
５の対向する２辺に整合する位置には、それぞれ丸孔６
が形成されている。さらにシリコンシート４は検出雑音
となる背面からの光を防ぐため黒色で遮光性を有してい
る。FIGS. 1 to 4 show the configuration of an embodiment of the present invention. 1 to 4, a support member 1 having a corner at the distal end and a tapered base end is formed by bending a silicon sheet. The curvature of the curved portion of the support member 1 is equal to or greater than the curvature of the head of the fetus, and is closely attached to the surface of the head when worn. Support member 1
Is formed by laminating three layers of silicon sheets 2, 3, and 4, and a cross-shaped hole 5 is formed in the upper silicon sheet 2.
Are formed. At positions matching the two opposing sides of the hole 5 of the middle silicon sheet 3, circular holes 6 are respectively provided.
Are formed. Further, the silicon sheet 4 is black and has a light-shielding property in order to prevent light from the back surface which becomes detection noise.
【０００９】発光部としての発光素子７及び受光部とし
ての受光素子８はそれぞれリード線９に接続されてお
り、リード線９とともにシリコンシート３，４間に挾持
されている。そして発光素子７及び受光素子８はそれぞ
れシリコンシート３に形成された丸孔６に嵌合してい
る。またシリコンシート２に形成された孔部５の対向す
る凹部には、製作の便宜上それぞれ矩形状の厚いシリコ
ン板１０と薄いシリコン板１１とが積層されて嵌合接着
されている。さらにシリコン板１０，１１の中心にはそ
れぞれ丸孔１０ａ，１１ａが形成されており、発光素子
７および受光素子８の先端が嵌合している。また丸孔１
０ａ，１１ａ内には図２及び図４に示すように、透明シ
リコン１２が充填され、胎児の頭髪や胎脂により光路が
遮ぎられないように上部に盛り上っている。A light emitting element 7 as a light emitting section and a light receiving element 8 as a light receiving section are connected to lead wires 9 respectively, and are sandwiched between the silicon sheets 3 and 4 together with the lead wires 9. Each of the light emitting element 7 and the light receiving element 8 is fitted in a round hole 6 formed in the silicon sheet 3. In addition, rectangular thick silicon plates 10 and thin silicon plates 11 are laminated and fitted and bonded to the opposing concave portions of the holes 5 formed in the silicon sheet 2 for convenience of manufacture. Further, round holes 10a and 11a are formed at the centers of the silicon plates 10 and 11, respectively, and the tips of the light emitting element 7 and the light receiving element 8 are fitted. Round hole 1
As shown in FIG. 2 and FIG. 4, transparent silicon 12 is filled in Oa and 11a, and swells to the upper part so that the optical path is not blocked by the fetus's hair or vernix.
【００１０】なお、上層のシリコンシート２の表面及び
シリコン板１０の表面は雑音となる光の侵入あるいは乱
反射を防止するためそれぞれ黒色の粗面となっており、
発光素子７及び受光素子８はそれぞれリード線９を介し
て外部の図示しない測定部に接続されている。また一対
のシリコン板１０，１１の間には間隙１３が形成さてて
いる。Note that the surface of the upper silicon sheet 2 and the surface of the silicon plate 10 are each a black rough surface in order to prevent the intrusion of light and the irregular reflection of noise.
The light emitting element 7 and the light receiving element 8 are each connected to an external measuring unit (not shown) via a lead wire 9. A gap 13 is formed between the pair of silicon plates 10 and 11.
【００１１】次に本実施例の作用を説明する。支持部材
１を丸く形成された先端から子宮内に挿入し、胎児の頭
部に装着すると、支持部材１は湾曲しているので子宮内
壁の圧力により頭部に密着する。このとき発光素子７と
受光素子８との間には間隙１３が形成されているので、
図５に示すように胎児の頭部の皮膚１４は発光素子７と
受光素子８との間に入り、発光素子７から発した光は透
明なシリコン樹脂１２を通って皮膚１４を透過して受光
素子８に入射し、透過光が得られる。そしてこの透過光
により皮膚１４の血管内の血液の脈動が検出され、酸素
飽和度、脈波、脈拍などを測定することができる。なお
胎児の破水、出産時にも支持部材１の基部が先細り形状
となっているので、胎児が回旋しながら移動しても産道
に当ることも少なく頭部からずれることは殆どない。ま
た発光素子７及び受光素子８の先端部外周のシリコン板
１０の表面は黒色の粗面となっているので、発光素子７
から発する光が乱反射することはない。Next, the operation of this embodiment will be described. When the support member 1 is inserted into the uterus from the rounded tip and mounted on the head of the fetus, the support member 1 is curved and comes into close contact with the head by the pressure of the inner wall of the uterus. At this time, since the gap 13 is formed between the light emitting element 7 and the light receiving element 8,
As shown in FIG. 5, the skin 14 of the head of the fetus enters between the light emitting element 7 and the light receiving element 8, and the light emitted from the light emitting element 7 passes through the skin 14 through the transparent silicone resin 12 and is received. The light is incident on the element 8 and transmitted light is obtained. Then, the pulsation of the blood in the blood vessel of the skin 14 is detected by the transmitted light, and the oxygen saturation, the pulse wave, the pulse and the like can be measured. Since the base of the support member 1 is tapered when the fetus breaks or gives birth, even if the fetus moves while rotating, it hardly hits the birth canal and is hardly displaced from the head. Further, since the surface of the silicon plate 10 at the outer periphery of the tip of the light emitting element 7 and the light receiving element 8 is a black rough surface, the light emitting element 7
There is no irregular reflection of light emanating from.
【００１２】本実施例によれば湾曲した支持部材１に間
隙１３を挟んで発光素子７及び受光素子８を設けたの
で、子宮内の胎児の破水から出産までの血液の脈動を容
易に検出することができ、血液の酸素飽和度などの測定
を確実に行なうことができる。According to this embodiment, since the light emitting element 7 and the light receiving element 8 are provided on the curved support member 1 with the gap 13 interposed therebetween, it is possible to easily detect the pulsation of the blood from rupture of the fetus in the uterus to delivery. This makes it possible to reliably measure the oxygen saturation of blood and the like.
【００１３】なお、孔部５の形状は上述の実施例に限ら
れるものではなく、例えば図６に示すように長方形と
し、発光素子７及び受光素子８を孔部１５の対向する２
辺に胎児の頭部の皮膚の一部が入り込める間隙１３を介
して対向配置してもよい。また孔部１０ａ，１１ａに充
填された透明なシリコン樹脂１２の先端を球状とするこ
とにより、支持部材１と子宮内壁との移動時の抵抗を小
さくすることができる。The shape of the hole 5 is not limited to the embodiment described above. For example, as shown in FIG.
They may be arranged opposite to each other via a gap 13 in which a part of the skin of the head of the fetus can enter the side. In addition, by making the tip of the transparent silicone resin 12 filled in the holes 10a and 11a spherical, resistance during movement between the support member 1 and the inner wall of the uterus can be reduced.
【００１４】[0014]
【発明の効果】以上説明したように、本発明のパルスオ
キシメータ用プローブによれば、ほぼ胎児の頭部の曲率
に合わせて形成された支持部材に孔部を設け、孔部に発
光部と受光部とを対向配置したので、子宮内の胎児の破
水から出産までの血液の脈動を検出し、血液の酸素飽和
度などを容易に測定することができる。As described above, according to the probe for a pulse oximeter of the present invention, a hole is formed in a support member formed substantially in accordance with the curvature of the head of a fetus, and a light emitting portion is formed in the hole. Since the light receiving unit is disposed opposite to the light receiving unit, it is possible to detect the pulsation of blood in the uterus from rupture of the fetus to childbirth and easily measure the oxygen saturation of the blood.
【図１】本発明のパルスオキシメータ用プローブの一実
施例の構成を示す斜視図。FIG. 1 is a perspective view showing the configuration of one embodiment of a probe for a pulse oximeter of the present invention.
【図２】図１のＡ−Ａ線断面図。FIG. 2 is a sectional view taken along line AA of FIG. 1;
【図３】図１の分解斜視図。FIG. 3 is an exploded perspective view of FIG. 1;
【図４】図１のシリコン板に透明シリコンを充填する前
後の状態を示す拡大斜視図。FIG. 4 is an enlarged perspective view showing a state before and after filling the silicon plate of FIG. 1 with transparent silicon;
【図５】本実施例の作用を示す説明図。FIG. 5 is an explanatory diagram showing the operation of the present embodiment.
【図６】本発明の他の実施例の構成を示す平面図。FIG. 6 is a plan view showing the configuration of another embodiment of the present invention.
１ 支持部材 ５ 孔部 ７ 発光素子（発光部） ８ 受光素子（受光
部） １４ 皮膚DESCRIPTION OF SYMBOLS 1 Support member 5 Hole part 7 Light emitting element (light emitting part) 8 Light receiving element (light receiving part) 14 Skin
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 5/145 Continuation of front page (58) Field surveyed (Int.Cl. 7 , DB name) A61B 5/145
Claims (1)
し、透過または反射光を受光部で受光して、前記頭部の
皮膚の血管内の血液の脈動を検出するパルスオキシメー
タ用プローブであって、湾曲形成された支持部材に孔部
を設け、該孔部に前記発光部と受光部とを所定の間隙を
介して対向配置したことを特徴とするパルスオキシメー
タ用プローブ。1. A pulse oximeter for irradiating light emitted from a light emitting portion to the head of a fetus and receiving transmitted or reflected light by a light receiving portion to detect pulsation of blood in blood vessels in the skin of the head. A probe for a pulse oximeter, wherein a hole is formed in a curved support member, and the light emitting unit and the light receiving unit are arranged in the hole so as to face each other with a predetermined gap therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05354694A JP3163409B2 (en) | 1993-03-25 | 1994-03-24 | Probe for pulse oximeter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5-14094 | 1993-03-25 | ||
| JP1409493 | 1993-03-25 | ||
| JP05354694A JP3163409B2 (en) | 1993-03-25 | 1994-03-24 | Probe for pulse oximeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06327657A JPH06327657A (en) | 1994-11-29 |
| JP3163409B2 true JP3163409B2 (en) | 2001-05-08 |
Family
ID=26349993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05354694A Expired - Fee Related JP3163409B2 (en) | 1993-03-25 | 1994-03-24 | Probe for pulse oximeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3163409B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519826A (en) * | 2013-10-29 | 2014-01-22 | 北京新兴阳升科技有限公司 | Reflection-type blood oxygen saturation gauge and measuring method thereof |
| KR20180032825A (en) * | 2016-09-23 | 2018-04-02 | 최규동 | Insulin Injection Appartus with Pulse Oximeter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19541605C2 (en) * | 1995-11-08 | 1999-06-24 | Hewlett Packard Co | Sensor and method for performing medical measurements, in particular pulse oximetric measurements, on the human finger |
| JP5021654B2 (en) * | 2005-09-29 | 2012-09-12 | コンメド コーポレイション | Sensor holder |
-
1994
- 1994-03-24 JP JP05354694A patent/JP3163409B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519826A (en) * | 2013-10-29 | 2014-01-22 | 北京新兴阳升科技有限公司 | Reflection-type blood oxygen saturation gauge and measuring method thereof |
| CN103519826B (en) * | 2013-10-29 | 2015-05-20 | 北京新兴阳升科技有限公司 | Reflection-type blood oxygen saturation gauge and measuring method thereof |
| KR20180032825A (en) * | 2016-09-23 | 2018-04-02 | 최규동 | Insulin Injection Appartus with Pulse Oximeter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06327657A (en) | 1994-11-29 |
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