WO2010130115A1 - Finger clamping type oximeter - Google Patents

Finger clamping type oximeter Download PDF

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Publication number
WO2010130115A1
WO2010130115A1 PCT/CN2009/073731 CN2009073731W WO2010130115A1 WO 2010130115 A1 WO2010130115 A1 WO 2010130115A1 CN 2009073731 W CN2009073731 W CN 2009073731W WO 2010130115 A1 WO2010130115 A1 WO 2010130115A1
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WO
WIPO (PCT)
Prior art keywords
finger
protrusions
oximeter
hole
measured
Prior art date
Application number
PCT/CN2009/073731
Other languages
French (fr)
Chinese (zh)
Inventor
刘树海
余文兵
Original Assignee
北京超思电子技术有限责任公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 北京超思电子技术有限责任公司 filed Critical 北京超思电子技术有限责任公司
Priority to CN200990100756.6U priority Critical patent/CN202776310U/en
Publication of WO2010130115A1 publication Critical patent/WO2010130115A1/en

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Classifications

    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6838—Clamps or clips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A61B5/14552—Details of sensors specially adapted therefor
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
    • 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
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6844—Monitoring or controlling distance between sensor and tissue
    • 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
    • A61B5/6886—Monitoring or controlling distance between sensor and tissue

Definitions

  • the present invention relates to the field of medical device technology, and in particular to a finger oximeter. Background technique
  • Finger oximeters currently on the market generally include an upper housing provided with an upper surface of the finger hole and a lower housing provided with a lower surface of the finger hole, the upper and lower housings being circumsable by a coil spring A common pivot rotates close to each other to clamp the measured finger to measure blood oxygen saturation.
  • Another object of the present invention is to provide a finger oximeter that has a plurality of protrusions on the inner surface of the finger hole to ensure that the finger of the finger to be measured is located at the position of the measuring tube during the measurement. Measure the position to ensure the accuracy of the measurement.
  • the present invention provides a finger oximeter comprising an upper housing having an upper surface of the finger aperture and a lower housing having a lower surface of the finger aperture.
  • a finger oximeter comprising an upper housing having an upper surface of the finger aperture and a lower housing having a lower surface of the finger aperture.
  • the finger oximeter of the present invention since a plurality of protrusions are provided in the finger hole, the measured finger is kept evenly pressed during the measurement, and is not excessively clamped, thereby not affecting the blood. Normal circulation; In addition, during the measurement, these projections ensure that the finger is at the correct measurement position at the measuring tube, thus ensuring the accuracy of the measurement.
  • the projections assist the user in placing the finger in the correct position during the initial measurement. During the measurement process, if the user's finger moves, the measurement will be inaccurate. According to the present invention, the user can judge whether or not the finger moves according to whether or not the finger is in full contact with the projection, thereby ensuring the accuracy of the measurement.
  • Figure 1 is a schematic cross-sectional view of a finger oximeter according to the present invention.
  • FIG. 2 is a schematic view showing the structure of the lower surface of the finger hole of the lower casing of the finger oximeter according to the present invention. detailed description
  • the core of the technology of the present invention is: providing a finger oximeter: that is, it includes an upper casing having an upper surface of a finger hole and a lower casing having a lower surface of the finger hole, the upper surface of the finger hole and the finger hole
  • the lower surface surrounds the inner surface of the finger hole, and the inner surface of the finger hole is provided with a plurality of protrusions supporting the finger belly of the finger to be measured.
  • a plurality of protrusions are provided on the inner surface of the finger hole, so that the measured finger remains uniformly pressed and is not over-clamped, so that normal circulation of blood is not affected, so as to ensure measurement accuracy.
  • the raised fingers can be accurately positioned by means of these projections, thereby further ensuring the accuracy of the measurement.
  • the finger oximeter 10 includes an upper casing 1, a lower casing 2, and a pivot 8.
  • the upper casing 1 is provided with an upper measuring arc tube 3, and the lower casing 2 is provided with a lower measuring arc tube 5.
  • a plurality of projections 6 are provided on the lower surface of the finger hole of the lower casing 1. During the measurement of the finger 5 to be measured, the projection 6 can support the finger pad.
  • the finger 5 to be measured remains uniformly pressed during the measurement, and is not excessively clamped, so that the normal circulation of blood is not affected.
  • the projection 6 ensures that the finger 5 is at the correct measurement position at the measuring light pipe 4, and therefore, the accuracy of the measurement can be ensured.
  • the plurality of protrusions 6 may be circular, elliptical, oblong or polygonal.
  • the number of the projections 6 may be three, four or more, preferably four.
  • the plurality of projections 6 have a minimum transverse dimension of between 0.5 and 1.2 mm, preferably 1.0 mm.
  • the height of the plurality of projections 6 is between 0.3 and 1.0 mm, preferably 0.5 mm.
  • the height and other dimensions of the projections 6 may vary.
  • the projections near the pivot 8 can be slightly higher, and the projections away from the pivot 8 can be slightly lower, making the fingers more comfortable during the measurement.
  • the plurality of projections 6 are symmetrical with respect to the longitudinal center line of the lower surface of the finger hole of the lower casing 2. Since the finger pad and the plurality of protrusions 6 are in contact with each other, the user can accurately judge whether or not the finger moves during the measurement. Since the movement of the finger will make the measurement data inaccurate, after the finger is judged to have moved during the measurement, the finger will be repositioned to ensure the accuracy of the measurement data.
  • the upper casing referred to in the present invention refers to a casing which is usually facing the user during use, such as a part of the casing with a display screen; the lower casing finger referred to in the present invention It is usually the housing that is facing away from the user during use.
  • the plurality of protrusions in the above embodiment are disposed on the lower surface of the finger hole of the lower case and located around the measuring light tube for supporting the finger belly of the finger to be measured.
  • the plurality of protrusions may also be disposed on the upper surface of the finger hole of the upper casing and around the measuring light tube for supporting the finger belly of the finger to be measured.
  • a plurality of protrusions are disposed on the lower surface of the finger hole of the lower case and the protrusions are located around the measuring light tube, and at the same time, a plurality of protrusions are disposed on the upper surface of the finger hole of the upper case and the protrusions are located Measure the circumference of the tube. This allows for better positioning of the finger to ensure the accuracy of the measurement data.

Abstract

A finger clamping type oximeter (10) includes an upper shell (1) provided with a finger-hole upper surface and a lower shell (2) provided with a finger-hole lower surface, and several protrusions (6) are provided on the finger-hole lower surface of the lower shell (2) and around a measuring luminotron (4) for supporting the pad of finger of the measured finger.

Description

指夹血氧仪 技术领域  Finger oximeter
本发明涉及医疗器械技术领域， 特别是， 涉及一种指夹血氧仪。 背景技术  The present invention relates to the field of medical device technology, and in particular to a finger oximeter. Background technique
市场上正在销售的指夹血氧仪一般都包括设有指孔上表面的上壳体和 设有指孔下表面的下壳体， 该上壳体和下壳体在卷簧作用下可绕一共同枢轴 相互靠拢地转动， 以夹紧被测量的手指， 从而进行血氧饱和度的测量。  Finger oximeters currently on the market generally include an upper housing provided with an upper surface of the finger hole and a lower housing provided with a lower surface of the finger hole, the upper and lower housings being circumsable by a coil spring A common pivot rotates close to each other to clamp the measured finger to measure blood oxygen saturation.
然而， 由于每个使用者手指的粗细、 形状都存在着差异， 因此， 可能导 致指夹血氧仪对被测量的手指加压不均匀， 或过度被夹紧， 这样， 就影响了 血液的正常流通， 从而也就影响了测量的准确度。  However, since the thickness and shape of each user's finger are different, it may cause the finger oximeter to pressurize the measured finger unevenly or excessively clamped, thus affecting the normal blood. Circulation, which in turn affects the accuracy of the measurement.
另外， 即便使用者的手指定位不准确或在测量过程中无意识地使手指发 生了移动， 现有的指夹血氧仪也没有任何提示， 这也会影响测量的准确度。 发明内容  In addition, even if the user's finger positioning is inaccurate or the finger is unconsciously moved during the measurement, the existing finger oximeter does not have any prompt, which also affects the accuracy of the measurement. Summary of the invention
本发明的目的是提供一种指夹血氧仪， 其在指孔内表面设有多个凸起， 使得被测量的手指保持受压均匀， 并且不会被过度夹紧， 从而不会影响血液 的正常流通， 以确保测量的准确度。  It is an object of the present invention to provide a finger oximeter that has a plurality of projections on the inner surface of the finger hole so that the measured finger remains uniformly pressed and is not over-clamped, thereby not affecting the blood. Normal circulation to ensure the accuracy of the measurement.
本发明的另外一个目的是提供一种指夹血氧仪， 其在指孔内表面设有多 个凸起， 可保证被测量手指的手指肚在被测量过程中位于测量发光管处的正 确的测量位置， 以确保测量的准确度。  Another object of the present invention is to provide a finger oximeter that has a plurality of protrusions on the inner surface of the finger hole to ensure that the finger of the finger to be measured is located at the position of the measuring tube during the measurement. Measure the position to ensure the accuracy of the measurement.
为此， 本发明提供了一种指夹血氧仪， 包括具有指孔上表面的上壳体和 具有指孔下表面的下壳体。 在所述下壳体的指孔下表面上并位于测量发光管 的周围设置可用于支撑被测量手指的手指肚的数个凸起；和 /或在所述上壳体 的指孔上表面上并位于测量发光管的周围设置可用以支撑被测量手指的手指 肚的数个凸起。 To this end, the present invention provides a finger oximeter comprising an upper housing having an upper surface of the finger aperture and a lower housing having a lower surface of the finger aperture. Providing a plurality of protrusions on the lower surface of the finger hole of the lower case and located around the measuring light pipe for supporting the finger belly of the finger to be measured; and/or on the upper surface of the finger hole of the upper case And located around the measuring light tube to set a finger that can be used to support the finger being measured Several bumps of the belly.
根据本发明的指夹血氧仪， 由于在指孔内设有多个凸起， 因而使得被测 量的手指在测量过程中保持受压均匀， 不会被过度夹紧， 从而不会影响血液 的正常流通； 另外， 在测量过程中， 这些凸起可保证手指位于测量发光管处 的正确的测量位置， 因此， 可以确保测量的准确度。  According to the finger oximeter of the present invention, since a plurality of protrusions are provided in the finger hole, the measured finger is kept evenly pressed during the measurement, and is not excessively clamped, thereby not affecting the blood. Normal circulation; In addition, during the measurement, these projections ensure that the finger is at the correct measurement position at the measuring tube, thus ensuring the accuracy of the measurement.
根据本发明的指夹血氧仪， 上述凸起可以辅助使用者在最初测量时将手 指置于正确的位置。 在测量过程中， 如果使用者的手指移动了， 就会造成测 量不准确。 根据本发明， 使用者根据手指是否与凸起充分接触， 就可判断其 手指是否移动， 从而确保测量的准确度。 附图说明  In accordance with the finger oximeter of the present invention, the projections assist the user in placing the finger in the correct position during the initial measurement. During the measurement process, if the user's finger moves, the measurement will be inaccurate. According to the present invention, the user can judge whether or not the finger moves according to whether or not the finger is in full contact with the projection, thereby ensuring the accuracy of the measurement. DRAWINGS
图 1是根据本发明的指夹血氧仪的横截面示意图； 以及  Figure 1 is a schematic cross-sectional view of a finger oximeter according to the present invention;
图 2是根据本发明的指夹血氧仪下壳体的指孔下表面的结构示意图。 具体实施方式  2 is a schematic view showing the structure of the lower surface of the finger hole of the lower casing of the finger oximeter according to the present invention. detailed description
本发明的技术核心是： 提供这样一种指夹血氧仪： 即， 其包括具有指孔 上表面的上壳体和具有指孔下表面的下壳体， 所述指孔上表面和指孔下表面 围绕而成指孔内表面， 在所述指孔内表面上设有可支撑被测量手指的手指肚 的数个凸起。在指孔内表面设有多个凸起，使得被测量的手指保持受压均匀， 并且不会被过度夹紧，从而不会影响血液的正常流通， 以确保测量的准确度。 同时借助于这些凸起也可以对被测量手指进行准确定位， 从而进一步确保测 量的准确度。  The core of the technology of the present invention is: providing a finger oximeter: that is, it includes an upper casing having an upper surface of a finger hole and a lower casing having a lower surface of the finger hole, the upper surface of the finger hole and the finger hole The lower surface surrounds the inner surface of the finger hole, and the inner surface of the finger hole is provided with a plurality of protrusions supporting the finger belly of the finger to be measured. A plurality of protrusions are provided on the inner surface of the finger hole, so that the measured finger remains uniformly pressed and is not over-clamped, so that normal circulation of blood is not affected, so as to ensure measurement accuracy. At the same time, the raised fingers can be accurately positioned by means of these projections, thereby further ensuring the accuracy of the measurement.
为使本技术领域的人员更好地理解本发明的技术方案， 下面结合附图和 具体实施方式对本发明提供的指夹血氧仪进行详细描述。  In order to enable those skilled in the art to better understand the technical solutions of the present invention, the finger oximeter provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
如图 1和 2所示， 根据本发明的指夹血氧仪 10包括上壳体 1、 下壳体 2 和枢轴 8。 上壳体 1设有上测量发光管 3 , 下壳体 2设有下测量发光管 5。 在 下壳体 1的指孔下表面上， 设有数个凸起 6。 在被测量手指 5的测量过程中， 凸起 6可支撑着手指肚。 As shown in FIGS. 1 and 2, the finger oximeter 10 according to the present invention includes an upper casing 1, a lower casing 2, and a pivot 8. The upper casing 1 is provided with an upper measuring arc tube 3, and the lower casing 2 is provided with a lower measuring arc tube 5. In On the lower surface of the finger hole of the lower casing 1, a plurality of projections 6 are provided. During the measurement of the finger 5 to be measured, the projection 6 can support the finger pad.
这样，在凸起 6的帮助下，被测量的手指 5在测量过程中保持受压均匀， 不会被过度夹紧， 从而不会影响血液的正常流通。 特别是， 该凸起 6可保证 手指 5位于测量发光管 4处的正确的测量位置， 因此， 可以确保测量的准确 度。  Thus, with the aid of the projection 6, the finger 5 to be measured remains uniformly pressed during the measurement, and is not excessively clamped, so that the normal circulation of blood is not affected. In particular, the projection 6 ensures that the finger 5 is at the correct measurement position at the measuring light pipe 4, and therefore, the accuracy of the measurement can be ensured.
所述数个凸起 6可以呈圓形、 椭圓形、 长圓形或多边形。  The plurality of protrusions 6 may be circular, elliptical, oblong or polygonal.
凸起 6的数量可以为 3个、 4个或更多， 优选为 4个。 为了达到最佳的 效果， 所述数个凸起 6的最小横向尺寸在 0.5-1.2mm之间， 优选为 1.0mm。 所述数个凸起 6的高度在 0.3-1.0mm之间， 优选为 0.5mm。  The number of the projections 6 may be three, four or more, preferably four. For the best effect, the plurality of projections 6 have a minimum transverse dimension of between 0.5 and 1.2 mm, preferably 1.0 mm. The height of the plurality of projections 6 is between 0.3 and 1.0 mm, preferably 0.5 mm.
特别是， 各凸起 6的高度和其他尺寸可以存在差异。 靠近枢轴 8的凸起 可以略微高一点， 远离枢轴 8的凸起可以略微低一点， 使得在测量过程中， 手指更舒服。 多个凸起 6可相对于下壳体 2的指孔下表面的纵向中心线对称 地排列。 由于手指肚与多个凸起 6相互接触， 使用者能准确判断手指在测量 过程中是否有移动。 因为手指出现移动将使得测量数据不准确， 所以在判断 出手指在测量过程中有移动后， 将对手指进行重新定位， 以确保测量数据的 准确性。  In particular, the height and other dimensions of the projections 6 may vary. The projections near the pivot 8 can be slightly higher, and the projections away from the pivot 8 can be slightly lower, making the fingers more comfortable during the measurement. The plurality of projections 6 are symmetrical with respect to the longitudinal center line of the lower surface of the finger hole of the lower casing 2. Since the finger pad and the plurality of protrusions 6 are in contact with each other, the user can accurately judge whether or not the finger moves during the measurement. Since the movement of the finger will make the measurement data inaccurate, after the finger is judged to have moved during the measurement, the finger will be repositioned to ensure the accuracy of the measurement data.
需要指出的是， 本发明中所说的上壳体指的是使用过程中通常是面向使 用者的壳体， 例如带有显示屏的那一部分壳体； 本发明中所说的下壳体指的 是使用过程中通常是背向使用者的壳体。  It should be noted that the upper casing referred to in the present invention refers to a casing which is usually facing the user during use, such as a part of the casing with a display screen; the lower casing finger referred to in the present invention It is usually the housing that is facing away from the user during use.
还需要指出的是， 上述实施例中的多个凸起是设置在下壳体的指孔下表 面并且位于测量发光管的周围， 用以支撑被测量手指的手指肚。 然而在实际 应用中， 所述多个凸起也可以设置在上壳体的指孔上表面上并位于测量发光 管的周围， 用以支撑被测量手指的手指肚。  It should also be noted that the plurality of protrusions in the above embodiment are disposed on the lower surface of the finger hole of the lower case and located around the measuring light tube for supporting the finger belly of the finger to be measured. However, in practical applications, the plurality of protrusions may also be disposed on the upper surface of the finger hole of the upper casing and around the measuring light tube for supporting the finger belly of the finger to be measured.
优选地， 在下壳体的指孔下表面设置多个凸起并使这些凸起位于测量发 光管的周围， 同时， 在上壳体的指孔上表面设置多个凸起并使这些凸起位于 测量发光管的周围。 这样可以更好地对手指进行定位， 以确保测量数据的准 确性。 Preferably, a plurality of protrusions are disposed on the lower surface of the finger hole of the lower case and the protrusions are located around the measuring light tube, and at the same time, a plurality of protrusions are disposed on the upper surface of the finger hole of the upper case and the protrusions are located Measure the circumference of the tube. This allows for better positioning of the finger to ensure the accuracy of the measurement data.
可以理解的是， 以上实施方式仅仅是为了说明本发明的原理而釆用的示 例性实施方式， 然而本发明并不局限于此。 对于本领域内的普通技术人员而 言， 在不脱离本发明的精神和实质的情况下， 可以做出各种变型和改进， 这 些变型和改进也视为本发明的保护范围。  It is to be understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the invention, but the invention is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the invention. These modifications and improvements are also considered to be within the scope of the invention.

Claims

利 要 求 书 Request
1. 一种指夹血氧仪， 包括具有指孔上表面的上壳体和具有指孔下表面 的下壳体， 其特征在于， 在所述下壳体的指孔下表面上并位于测量发光管的 周围设置可用于支撑被测量手指的手指肚的数个凸起；和 /或在所述上壳体的 指孔上表面上并位于测量发光管的周围设置可用以支撑被测量手指的手指肚 的数个凸起。 A finger oximeter comprising an upper case having an upper surface of a finger hole and a lower case having a lower surface of a finger hole, characterized in that the lower surface of the finger hole of the lower case is located and measured a plurality of protrusions for supporting the finger belly of the measured finger are disposed around the light-emitting tube; and/or disposed on the upper surface of the finger hole of the upper case and located around the measuring light-emitting tube to support the finger to be measured Several bumps on the fingertips.
2. 如权利要求 1 所述的指夹血氧仪， 其特征在于， 位于指孔下表面或 指孔上表面上的所述数个凸起均为 4个绕测量发光管均布的凸起。 2. The finger oximeter according to claim 1, wherein the plurality of protrusions located on the lower surface of the finger hole or the upper surface of the finger hole are four protrusions uniformly distributed around the measuring light tube. .
3. 如权利要求 1 所述的指夹血氧仪， 其特征在于， 所述数个凸起呈圓 形、 椭圓形、 长圓形或多边形。 3. The finger oximeter of claim 1, wherein the plurality of protrusions are circular, elliptical, oblong or polygonal.
4. 如权利要求 1 所述的指夹血氧仪， 其特征在于， 所述数个凸起的最 小横向尺寸在 0.5-1.2mm之间。 4. The finger oximeter of claim 1, wherein the plurality of protrusions have a minimum lateral dimension of between 0.5 and 1.2 mm.
5. 如权利要求 4所述的指夹血氧仪， 其特征在于， 所述数个凸起的最 小横向尺寸为 1.0mm 5. The finger oximeter of claim 4, wherein the plurality of protrusions have a minimum lateral dimension of 1.0 mm
6. 如权利要求 1 所述的指夹血氧仪， 其特征在于， 所述数个凸起的高 度在 0.3-1.0mm之间。  6. The finger oximeter of claim 1, wherein the height of the plurality of protrusions is between 0.3 and 1.0 mm.
7. 如权利要求 6所述的指夹血氧仪， 其特征在于， 所述数个凸起的高 度为 0.5 7. The finger oximeter of claim 6, wherein the height of the plurality of protrusions is 0.5
8. 如权利要求 1 所述的指夹血氧仪， 其特征在于， 各凸起相对于下壳 体的指孔下表面的纵向中心线对称地排列。 8. The finger oximeter of claim 1 wherein each projection is opposite to the lower housing The longitudinal centerlines of the lower surface of the body of the finger are symmetrically arranged.
9. 如权利要求 1 所述的指夹血氧仪， 其特征在于， 靠近枢轴的凸起的 高度大于远离枢轴的凸起的高度。 9. The finger oximeter of claim 1 wherein the height of the projection adjacent the pivot is greater than the height of the projection away from the pivot.
PCT/CN2009/073731 2009-05-11 2009-09-03 Finger clamping type oximeter WO2010130115A1 (en)

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CN2009100838889A CN101884539A (en) 2009-05-11 2009-05-11 Finger clip blood oximeter having projections in finger hole
CN200910083888.9 2009-05-11

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