JP2003225215A - Pulse photometry probe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a probe having good mountability in which pressure is dispersed without causing a local pressure caused by mounting. <P>SOLUTION: A pulse photometry probe is provided with a light-emitting part for emitting a light to a living tissue, a light-receiving part for receiving the light which passes through the living tissue, a tape mounting part having compressibility which is wound around and mounted on the living tissue, and a fastening part in which the tape mounting part is wound around the living tissues so as to hold a mounting state. The tape mounting part has first and second holes and the second hole is arranged to emit light emitted from the light-emitting part, by the light-receiving part. The light-emitting and light- receiving parts can be detachably mounted on a surface which is free from contact with the living tissue in the tape mounting part. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a probe for measuring a pulse wave or a light-absorbing substance in blood by a pulse photometry method.

[0002]

2. Description of the Related Art In a conventional probe used in a pulse photometry method, a light source and an optical sensor are embedded and fixed inside a support structure wound around a finger, and an adhesive layer is provided on a lower surface of the support structure. Then, by mounting the adhesive layer on the surface of the living tissue, the light source and the optical sensor are fixed to the living tissue, and the probe itself is fixed (see, for example, Patent Documents 1 and 2). Further, a probe used in a conventional pulse photometry method has a light emitting unit and a light receiving unit arranged on a surface of a flexible member that comes into contact with living tissue, and is attached to the living tissue by being wound around using a mounting strap (for example, Patent Document 1). 3).

[0003]

[Patent Document 1] Japanese Patent Publication No. 2-20252

[Patent Document 2] US Pat. No. 4,830,014

[Patent Document 3] US Pat. No. 5,919,133

[0004]

[Patent Document 1] (Patent Document 2) is applied to the fingers of premature babies and newborns whose skin is still weak.
In the case of using a probe having an adhesive layer of a support structure as described in, the adhesive layer deteriorates due to contact with the sebum and stratum corneum of the attachment site, weakening the adhesive force, There is a possibility that it will give pressure. Furthermore, the adhesive layer may peel the stratum corneum. In addition, the probe described in Patent Document 3 is
The hard light-emitting part and the light-receiving part directly touch the living tissue and press it. In addition, a connection (yoke) is provided between the light emitting part and the light receiving part.
Therefore, the distance between the light emitting unit and the light receiving unit cannot be adjusted, and the optical axis cannot be adjusted when a living tissue such as a finger is sandwiched between the light emitting unit and the light receiving unit. In addition, since the compressive member with different flexibility and the housing of the light-receiving part and the light-emitting part are in contact with the living tissue, even if they are wound around and attached to the living tissue, they are evenly distributed over the entire surface. It is difficult to achieve uniform pressure dispersion. The present invention has been made to solve the above problems, and its purpose is to prevent necrosis, redness, and inflammation caused by extreme pressure caused by wearing even if the patient has weak skin, and pressure is applied. Is to provide probes that are dispersed.

[0005]

A pulse photometry probe according to the present invention has a light emitting section for emitting light to a living tissue and a light emitted by the light emitting section and transmitted through the living tissue as described in claim 1. A light receiving part for receiving the light, the light emitting part and the light receiving part are attached, the mounting tape part having a compressibility for being wound around the living tissue and mounted, and the mounting tape part being the living tissue. The mounting tape portion has a first hole for passing light emitted from the light emitting portion, and a light emitting portion for emitting light by the light emitting portion. Has a second hole for allowing the light transmitted through the living tissue to be received by the light receiving section, the light emitting section allowing the light emitted to the first hole to pass therethrough, and Do not contact living tissue Detachably mounted on the surface,
The light receiving portion is detachably attached to a surface of the mounting tape portion that does not come into contact with living tissue so as to receive light from the second hole.

Further, in the pulse photometry probe according to the present invention, as described in claim 2, the mounting tape portion comprises a compressible member and a cover tape having an adhesive surface on one side. The adhesive surface has a surface that adheres to the compression member and a surface that serves as the retaining portion by adhering to a surface of the mounting tape portion that does not contact biological tissue.

Further, in the pulse photometry probe according to the present invention, as described in claim 3, the mounting tape part is provided below the surface on which the light emitting part and the light receiving part are mounted. A plate for dispersing pressure from the light emitting unit and the light receiving unit to the living tissue due to the winding under the state of being attached to the living tissue is embedded.

Further, in the pulse photometry probe according to the present invention, as described in claim 4, the mounting tape portion is provided at a position where the light emitting portion and the light receiving portion are attached, the light emitting portion and the light receiving portion. It is characterized in that a tape for detachably attaching each is attached.

Further, in the pulse photometry probe according to the present invention, as described in claim 5, the compressive member or the cover tape has a light shielding property.

Further, in the pulse photometry probe according to the present invention, as described in claim 6, each of the plates is provided with a hole for passing light to be emitted and light to be received, and the plate itself is shielded from light. It is characterized by having sex.

Further, in the pulse photometry probe according to the present invention, as described in claim 7, the tape for removably attaching the light emitting portion and the light receiving portion has a light shielding property, and the light emitting portion is provided. And a hole for passing light emitted from the light receiving portion and light for receiving the light by the light receiving portion.

Further, in the pulse photometry probe according to the present invention, as described in claim 8, the mounting tape portion is provided at a position where the light emitting portion and the light receiving portion are attached, or a hook portion of a planar fastener. A loop portion is provided, and the loop portion or the hook portion of the planar fastener is provided on at least the surfaces of the light emitting portion and the light receiving portion that are attached to the mounting tape portion.

Further, in the pulse photometry probe according to the present invention, as described in claim 9, the hook portion and the loop portion of the planar fastener have a light shielding property, and light is emitted from the light emitting portion. Holes for passing light and light for being received by the light receiving portion are respectively provided.

Further, in the pulse photometry probe according to the present invention, as described in claim 10, the tape has an adhesive surface for attaching the light emitting portion and the light receiving portion, and the light emitting portion and the light receiving portion are provided. At least a surface of the part attached to the adhesive surface is a pile material

Further, in the pulse photometry probe according to the present invention, as described in claim 11, in the tape, the mounting tape portion is in a flat state, and the tape has the light emitting portion and the light receiving portion. When attached in a predetermined state, the directions of the base ends of the lead wires of the light emitting unit and the light receiving unit are 60 ° to 120 ° to each other.
It is characterized in that it is formed and arranged so as to form an angle of.

Further, in the pulse photometry probe according to the present invention, as described in claim 12, the hook portion or the loop portion of the planar fastener attached to the mounting tape has a flat mounting tape portion. When the light emitting portion and the light receiving portion are attached to the hook portion or the loop portion of the planar fastener in a predetermined state in a predetermined state, the base end portions of the lead wires of the light emitting portion and the light receiving portion are It is characterized in that they are formed and arranged so that their directions are at an angle of 60 ° to 120 ° to each other.

Further, in the pulse photometry probe according to the present invention, as described in claim 13, the compressive member is a sponge.

Further, in the pulse photometry probe according to the present invention, as described in claim 14, from the surface of the mounting tape portion which is in contact with the biological tissue, the first
The hole and the second hole are sealed by a light transmitting sheet.

Alternatively, the pulse photometry probe according to the present invention, as set forth in claim 15, receives a light emitting portion for emitting light to a living tissue, and light emitted by the light emitting portion and transmitted through the living tissue. A light receiving part for performing the light emitting part, the light emitting part and the light receiving part are attached, and a mounting tape part having compressibility for winding and mounting on the living tissue, and the mounting tape part is wound on the living tissue. And a fastening portion for maintaining a state of being attached, the mounting tape portion is composed of a compressible member and a cover tape having an adhesive surface on one side, and the adhesive surface of the cover tape is the compression member. And a surface that serves as the retaining portion by being mounted on a surface of the mounting tape portion that does not come into contact with living tissue, and the cover tape protects the light emitted from the light emitting portion. And a second hole for allowing the light emitted by the light emitting unit and transmitted through the living tissue to be received by the light receiving unit, and the light emitting unit is provided in the first hole. The cover tape is detachably attached to the cover tape so as to allow the emitted light to pass therethrough, and the light receiving portion to receive light from the second hole, and At least a portion of the compressible member, which is removably attached to a surface that is not adhered to the compressible member and through which the light emitted from the light emitting unit passes through the biological tissue and reaches the light receiving unit, is transparent to light. It is characterized by having sex.

Further, the pulse photometry probe according to the present invention has the features of claim 1 as described in claim 16.
In the configuration according to 5, the mounting tape portion has an adhesive surface for attaching the light emitting portion and the light receiving portion,
At least the surfaces of the light emitting unit and the light receiving unit that are attached to the adhesive surface are pile fabrics.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a pulse photometry probe according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a view showing the appearance of the pulse photometry probe according to this embodiment. As shown in FIG. 1, the pulse photometry probe is roughly divided into a measuring element section 20 and a mounting tape section 30.

[Measuring Element Section 20] The measuring element section 20 includes a light emitting section 1 (LED or the like) for emitting light and the light emitting section 1 thereof.
A light receiving part 2 (photodiode or the like) for receiving the light emitted from the body and passing through the biological tissue, and a light emitting drive signal to the light emitting part 1 to transmit the light receiving signal from the light receiving part 2 to the apparatus main body (not shown). The Y-shaped cable 3 and the connector 4 for attaching to the main body of the apparatus. The Y-shaped cable 3 includes two lead wires respectively connected to the light emitting section 1 and the light receiving section 2. By making the light emitting unit 1 and the light receiving unit 2 not integral with each other but using separate measuring units, the cable diameter can be made thin and flexible. Further, the distance between the light emitting unit 1 and the light receiving unit 2 is not fixed.

[Mounting Tape Section 30] Next, the mounting tape section 30 will be described with reference to FIGS. The mounting tape portion 30 has a compressible sponge 5 which is directly wound around a living tissue (finger, foot, etc.), and a cover tape 9 whose one surface is adhered to the sponge 5 with an adhesive surface 10. The adhesive surface 10 of the cover tape 9 has a surface that adheres to the sponge 5 and a surface that does not adhere to the sponge 5. The surface not adhered to the sponge 5 is adhered to the surface of the cover tape 9 when the mounting tape portion 30 is wound around the living tissue and mounted, and serves as a retaining portion for maintaining the mounted state. In addition,
Before the attachment to the biological tissue, the adhesive surface that does not adhere to the sponge 5 is covered with the release paper 12. Instead of the adhesive surface of the cover tape 9 that does not adhere to the sponge 5, a sheet fastener or the like may be used. The material of the cover tape 9 may be a stretchable bandage or a non-shrinkable paper tape. Preferably, the cover tape 9
The material is preferably a non-woven elastic tape coated with an adhesive. Further, the sponge 5 is a member that directly contacts the biological tissue.
Therefore, the unevenness on the surface of the living tissue can be flexibly contacted with good adhesion and the pressure applied to the living tissue can be dispersed.

Further, the mounting tape portion 30 has a first hole 13 for passing the light emitted from the light emitting portion 1 and a light receiving portion 2 for receiving the light emitted by the light emitting portion 1 and transmitted through the living tissue. Second hole 14 is provided. Further, the light emitting unit 1 is detachably attached to the upper surface of the cover tape 9 so that light can be emitted through the first hole 13. The light receiving section 2 is detachably attached to the upper surface of the cover tape 9 so that light can be received through the second hole 14. The structure is a black annular double-sided tape 8 having a light-shielding property and provided with holes having substantially the same size as the first hole 13 and the second hole 14.
Are attached to the first hole and the second hole on the concentric axis, respectively, so that they can be attached and detached. Here, the holes 13A and 14A forming the first hole 13 and the second hole 14 provided in the cover tape 9 form the first hole 13 and the second hole 14 provided in the sponge 5. Holes 13B and 14
It is formed larger than B, and the adhesive surface of the double-sided tape 8 provided between the sponge 5 and the cover tape 9 is exposed through the holes 13A and 14A. Light emitting part 1
The light receiving section 2 and the light receiving section 2 are adapted to be attached by being adhered to the adhesive surfaces of the double-sided tape 8 that emerge from the holes 13A and 14A, respectively. Before the light emitting unit 1 and the light receiving unit 2 are attached to the mounting tape unit 30, the release paper 11 is attached to the portion of the double-sided tape 8 that appears on the surface. When the light emitting unit 1 and the light receiving unit 2 are attached to the mounting tape unit 30, the release paper is peeled off, and the light emitting unit 1 and the light receiving unit 2 are attached to the double-sided tape 8. Due to this structure, the light emitting unit 1,
The measuring element such as the light receiving unit 2 is fixed to a portion of the back surface (the surface opposite to the surface in contact with the biological tissue) of the mounting tape unit 30 where the measuring element is mounted so as not to directly contact the biological tissue (skin) of the patient. It will be. Furthermore, since the distance between the light emitting portion 1 and the light receiving portion 2 is not fixed, the mounting tape portion 3 can be formed by forming the first hole 13 or the second hole 14 into an elliptical shape or the like.
It is also possible to adjust the distance between the light-emitting unit 1 and the light-receiving unit 2 when attaching to 0. Accordingly, it is possible to finely adjust the optical axes of the light emitting unit 1 and the light receiving unit 2 when the probe is attached so as to face each other. Alternatively, a plurality of mounting tape portions 30 having different distances between the first hole 13 and the second hole 14 are prepared, and the mounting tape portion 30 suitable for the size of the living tissue (finger etc.) of the patient is prepared. May be selected.

Further, when the mounting tape portion 30 is wound around and attached to the living tissue, the plate 6 is provided to disperse the pressure from the light emitting portion 1 and the light receiving portion 2 to the living tissue. It is provided concentrically with the first hole and the second hole and closer to the living tissue contact surface than the double-sided tape 8. In the present embodiment, the first hole 13 and the second hole 14 have a circular ring shape having the same size as the hole, but a transparent plate may have a disk shape. The double-faced tape 7 is attached to the surface of the plate 6 near the living tissue contacting surface, and is attached to the sponge 5. Plate 6
By providing a surface that is larger than the mounting surface of the light emitting unit 1 and the light receiving unit 2, it is possible to disperse the pressure on the surface (skin) of the biological tissue in combination with the buffering function of the sponge 5. Particularly, local compression that may occur at the edge portions of the light emitting portion 1 and the light receiving portion 2 can be prevented by the plate 6 and the sponge 5. In this embodiment, the double-sided tape is used for adhering each component, but heat welding or the like may be used. Further, the material of the plate may be ABS, PET, or vinyl chloride.

Further, in the above-described embodiment, the black adhesive tape having no light transmission is used as the annular adhesive double-sided tape 8, but the cover tape 9, the annular adhesive double-sided tape 8,
By using a light-shielding material for either the annular plate 6 or the sponge 5, it is possible to block external light that causes a measurement error.

In the present embodiment, as shown in FIG. 1, between the first hole 13 and the second hole 14 of the mounting tape portion 30,
Three holes are provided in the width direction of the mounting tape portion 30. This is to make it easier to bend the mounting tape portion 30 when mounting it on the patient.

[Mounting Method / Using Method] Next, the mounting method will be described. The light emitting section 1 and the light receiving section 2 are attached and fixed to the measuring element mounting section of the mounting tape section 30. Each of the light emitting unit 1 and the light receiving unit 2 is a measurement site (finger, foot, etc.) of the patient.
The mounting tape portion 30 is disposed so as to face each other with the space therebetween.
Is wound around the living tissue. Here, FIG. 4 shows a state in which the release paper 12 is attached to a finger while being peeled off. Further, FIG. 5A shows a state in which the light emitting unit 1 is arranged on the instep of the foot and the light receiving unit 2 is arranged on the opposite sole of the foot to be worn. Further, the entire surface of the probe can be mounted and fixed by adhering the adhesive surface 10 which is the fastening portion at the end of the mounting tape portion 30 to the back surface of the wound cover tape 9. FIG. 5 (b) is a diagram showing a state in which the user is trying to wear it on the foot. The winding strength is adjusted depending on the living tissue (such as the color of the skin) distal to the attachment site, or the measured pulse wave waveform detected by the probe. Although the light emitting part 1 and the light receiving part 2 are fixed to the measuring element mounting part, the mounting tape part 30 to be wound has a length sufficient to cover the back surface of the light emitting part 1 and the light receiving part 2. It is possible to prevent the light emitting unit 1 and the light receiving unit 2 from coming off. In addition, as a usage method, the mounting tape section 30 is used as a disposable, and the measuring element section 20 is reused, so that it can be used cost effectively.

FIG. 6 is a diagram showing a second embodiment. In the present embodiment, the planar fastener 40 is used to attach the light emitting unit 1 and the light receiving unit 2 to the mounting tape unit 30 in the probe of the first embodiment. That is, the hook portion 40A of the sheet fastener 40 is attached to the surface of the adhesive double-faced tape 8 on the cover tape 9 side, and the loop portion 40B of the sheet fastener 40 is attached to the surfaces of the light emitting unit 1 and the light receiving unit 2. .

Here, the structure of the light emitting portion 1 or the light receiving portion 2 is shown in the sectional view of FIG. 7, and the appearance is shown in FIG. As shown in these figures, the light emitting element or the light receiving element 41 is covered with two sheets. That is, the side having the light transmitting surface is covered with the transparent sheet 42, and the opposite side is covered with the sheet 44 having a light shielding property. These sheets 42, 4
For example, a vinyl chloride sheet is used as 4, and the periphery thereof is adhered by high frequency welding. Also, the entire outer surface of these two sheets 42,44 is
The loop part 40B is attached. The light emitting surface or the light receiving surface 41a of the light emitting element or the light receiving element 41 is provided with a window portion 43 in the loop portion 40B so as not to block light. The other configuration of the present probe is the same as that of the probe of the above-mentioned embodiment.

The present probe is thus provided with the surface fastener 40.
Therefore, even if the light emitting portion 1 and the light receiving portion 2 are repeatedly attached to and detached from the mounting tape portion 30, the attachment and detachment can be reliably performed. As described above, in the present embodiment, the loop portion 40B is provided on the surfaces of the light emitting unit 1 and the light receiving unit 2,
Although the hook portion 40A is provided on the mounting tape 30 side, the hook portion 40A and the loop portion 40B may be reversed. However, since the loop portion 40B has a better feel, the loop portion 40 is closer to the light emitting portion 1 and the light receiving portion 2 which the operator often touches.
It is preferable for the operator to provide B.

FIG. 9 is a diagram showing a third embodiment. This embodiment is the same as the probe of the first embodiment, except that the holes 13A and 14 provided in the cover tape 9 are provided.
A is arranged so that the major axis directions thereof are from 60 ° to 120 °. That is, the adhesive surface of the double-sided tape 8 exposed from the cover tape 9 is the mounting tape portion 30.
When the light emitting portion and the light receiving portion are attached to the double-sided tape 8 in a predetermined state in a flat state, the base ends of the lead wires of the light emitting portion 1 and the light receiving portion 2 are oriented at 60 ° to each other. It is formed and arranged so as to form an angle of 120 °. Other configurations are the same as those in the first embodiment. With such a configuration, when the present probe is attached to the patient and the light emitting unit 1 and the light receiving unit 2 are attached to the adhesive surface of the double-sided tape 8 exposed from the holes 13A and 14A in the state in which the light emitting unit 1 and the light receiving unit 2 are best adhered, that is, they are attached When mounted in the state where the surface becomes the largest, as shown in FIG. 10, the base ends L1 and L2 of the lead wires of the light emitting unit 1 and the light receiving unit 2 respectively
Becomes easy to pull out, and the work of mounting this probe becomes easy. FIG. 10 shows how the present probe is attached to the foot of a patient.

The third embodiment is different from the first embodiment in that the holes 13A and 1 provided in the cover tape 9 are the same as those in the first embodiment.
4A was arranged such that the major axis directions thereof were 60 ° to 120 ° with respect to each other. This is the same as the hole 1 provided in the cover tape 9 in the second embodiment.
3A and 14A with their major axis directions from 60 ° to 120 °
It may be arranged so that it becomes °. In this case, the lead wires are easily pulled out, and the reliability of attachment / detachment of the light emitting unit 1 and the light receiving unit 2 is improved.

FIG. 11 is a diagram showing a fourth embodiment. This embodiment is the same as the third embodiment, except that
Holes 13B and 14B from the side of the sponge 5 that contacts the living body
Are sealed with two light-transmissive sheets 15 and 15 (surgical tape, film or the like is preferable). The permeable sheet 15 is sealed by a hole 13B provided in the sponge 5 when the probe is attached to a living tissue,
This is to prevent the biological tissue portion with which the edge portion of 14B is in contact from being necrotic due to excessive pressure. As an example of a suitable material of the light transmissive sheet 15, the thickness is 0.3.
A polyurethane elastomer having a thickness of about 0.4 mm can be used. It is advisable to apply a thin adhesive to one surface of the light-transmissive sheet 15 and seal it on the sponge 5. FIG. 12 is a sectional view thereof. As shown in FIG. 12, the holes 13 and 14 are formed by a light transmissive sheet 15.

The light transmissive sheet 15 does not have to be divided into two parts, and as shown in FIG. 13, it has a size large enough to simultaneously seal the holes 13B and 14B provided in the sponge 5. It may be one of the following.

FIG. 14 is a diagram showing a fifth embodiment. This embodiment is the same as the third embodiment, except that
The holes 13B and 14B are not provided, and instead, the sponge 5 is used.
Is thin, and the sponge 5 is made porous so as to have optical transparency. This is also for preventing the edge of the hole from being formed in the sponge 5, as in the fourth embodiment. An example of a suitable material for the sponge 5 is flexible urethane foam. The porosity of the sponge is
It is sufficient that there are about 50 to 60 holes (cells) in 25 mm. In addition, at least the portion of the sponge 5 that transmits light
The thickness is preferably about 1 to 2 mm. The thickness of the sponge 5 in other portions may be about 1 to 2 mm, which is the same thickness, or may be thicker than that. FIG. 15 is a sectional view thereof.
As shown in FIG. 15, the thickness of the sponge 5 in the light transmitting portion is thin. With such a configuration, when the probe is attached and the measurement is performed, at least the portion of the sponge 5 through which the light emitted from the light emitting unit 1 passes through the biological tissue and reaches the light receiving unit 2, It will be transparent.

In the first to fifth embodiments described above, at least the surfaces of the light-emitting portion 1 and the light-receiving portion 2 which come into contact with the mounting tape 9 are like planar fasteners except for the portion through which light passes. It may be a pile fabric, and the surface of the adhesive double-sided tape 8 on the cover tape 9 side may not be provided with sheet fasteners. In this case, the peeling strength of the light emitting part 1 and the light receiving part 2 from the tape 8 exposed from the mounting tape 9 is weaker than that of the two surface fasteners. Therefore, the light emitting portion 1 and the light receiving portion 2 can be peeled off from the mounting tape 9 with a moderate force.

[0039]

As described in detail above, the invention of the pulse photometry probe according to claim 1 provides a light emitting section for emitting light to living tissue, and a light emitted by the light emitting section and transmitted through the living tissue. A light receiving section for receiving light, a mounting tape section having the light emitting section and the light receiving section attached thereto and having a compressibility for winding and mounting on the living tissue, and the mounting tape section wound on the living tissue. The attachment tape portion has a first hole for passing light emitted from the light emitting portion, and the living body light-emitted by the light emitting portion. It has a second hole for allowing light passing through the tissue to be received by the light receiving section, and the light emitting section allows the light emitted to the first hole to pass through the living tissue of the mounting tape section. Wear on non-contacting surface Can mounted, the light receiving unit is characterized by being removably attached to the surface of the to receive from the second hole, and does not contact the body tissue of the mounted tape unit. As a result, there is no adhesive layer on the surface of the mounting tape that comes into contact with living tissue,
No matter how many times the probe is attached to and detached from the living tissue, the attachment force does not decrease due to contact with the living tissue. Further, since the light emitting unit and the light receiving unit do not come into direct contact with the living tissue and the mounting tape portion has compressibility, it is possible to prevent local pressure on the living tissue and disperse the pressure in the mounted state.

Further, in the invention of the pulse photometry probe according to claim 2, the mounting tape portion comprises a compressible member and a cover tape having an adhesive surface on one side, and the adhesive surface of the cover tape is It is characterized in that it has a surface that adheres to the compression member and a surface that becomes the retaining portion by adhering to the surface of the mounting tape portion that does not contact biological tissue. With this, the compressive member can be supported by the adhesive surface that adheres to the compressive member, and the probe can be wound around and attached to the living tissue by the cover tape of one member.

Further, in the invention of the pulse photometry probe according to claim 3, the mounting tape portion is mounted on the living tissue below the surface on which the light emitting portion and the light receiving portion are mounted. In the state, a plate for dispersing pressure from the light emitting unit and the light receiving unit to the living tissue due to winding is embedded. As a result, local pressure on the living tissue from the light emitting unit / light receiving unit caused by winding and mounting the probe is dispersed, and damage to the living tissue such as compression necrosis can be prevented.

Further, in the invention of the pulse photometry probe according to claim 4, the mounting tape portion detachably attaches the light emitting portion and the light receiving portion to a position where the light emitting portion and the light receiving portion are attached. It is characterized in that each tape is attached. Thereby, the operability of attaching the light emitting portion and the light receiving portion to the mounting tape portion is good. Further, by using the mounting tape part as a disposable and reusing the light emitting part and the light receiving part, it is possible to use the cost effectively.

Further, the invention of the pulse photometry probe according to claim 5 is characterized in that the compressive member or the cover tape has a light shielding property. Thereby, the compressive member or the cover tape having a light blocking property can prevent external light and improve the measurement accuracy.

Further, the invention of a pulse photometry probe according to claim 6 is characterized in that each of the plates is provided with a hole for passing light to be emitted and light to be received, and the plate itself has a light shielding property. And This allows the light emitted and received by the holes provided in each plate to pass therethrough, and prevents the external light due to the light-shielding properties of the plates, thus improving the measurement accuracy.

Further, in the invention of a pulse photometry probe according to a seventh aspect, the tape for detachably attaching the light emitting portion and the light receiving portion has a light shielding property, and light emitted from the light emitting portion is provided. And a hole for allowing light to be received by the light receiving section. Accordingly, since the tape directly attached to the light emitting portion and the light receiving portion for attaching the light emitting portion and the light receiving portion to the mounting tape portion has a light shielding property, it is possible to prevent external light and improve the measurement accuracy. Since the tape is provided with holes for passing light, only necessary light can be emitted and received.

Further, in the invention of the pulse photometry probe according to claim 8, the mounting tape portion is provided with a hook portion or a loop portion of the planar fastener at a position where the light emitting portion and the light receiving portion are attached. A loop portion or a hook portion of the sheet fastener is provided on at least the surfaces of the light emitting portion and the light receiving portion that are attached to the mounting tape portion, respectively. As a result, since the light emitting portion and the light receiving portion are attached to and detached from the mounting tape portion via the sheet fastener, the attachment and detachment can be surely performed even if they are repeatedly performed.

Further, in the invention of a pulse photometry probe according to a ninth aspect, the hook portion and the loop portion of the planar fastener have a light shielding property, and the light emitted from the light emitting portion and the light receiving portion are It is characterized in that holes for passing light for receiving are provided respectively.
Thereby, since the hook portion or the loop portion of the planar fastener provided at the position where the light emitting portion and the light receiving portion are attached of the mounting tape portion has a light shielding property, it prevents external light and improves measurement accuracy. Can be made. Since the tape is provided with holes for passing light, only necessary light can be emitted and received.

Further, in the invention of a pulse photometry probe according to a tenth aspect, the tape has an adhesive surface for attaching the light emitting section and the light receiving section, and at least the adhesive of the light emitting section and the light receiving section. The surface attached to the surface is characterized by being piled. Thereby, the light emitting portion and the light receiving portion can be peeled off from the mounting tape portion with a light and moderate force.

Further, in the invention of a pulse photometry probe according to claim 11, the mounting tape portion of the tape is flat, and the light emitting portion and the light receiving portion are attached to the tape in a predetermined state. In this case, the base lines of the lead wires of the light emitting part and the light receiving part are formed and arranged so that the directions of the base ends of the lead lines form an angle of 60 ° to 120 °. This makes it possible to easily pull out the lead wires of the light emitting unit and the light receiving unit when the present probe is attached to the subject.

Further, in the invention of the pulse photometry probe according to the twelfth aspect, the hook portion or the loop portion of the planar fastener attached to the mounting tape is such that the mounting tape portion is in a flat state. When the light emitting portion and the light receiving portion are attached to the hook portion or the loop portion of the fastener in a predetermined state, the directions of the base end portions of the lead wires of the light emitting portion and the light receiving portion are from 60 ° to each other. It is characterized in that it is formed and arranged so as to form an angle of 120 °. This makes it possible to easily pull out the lead wires of the light emitting unit and the light receiving unit when the present probe is attached to the subject.

Further, the invention of the pulse photometry probe according to claim 13 is characterized in that the compressive member is a sponge. As a result, since the sponge makes contact with the living tissue, no matter how many times the probe is attached to and detached from the living tissue, the attachment force does not decrease due to the contact with the living tissue. Further, the compressibility of the sponge can prevent local compression of the living tissue under the wearing condition.

Further, in the invention of a pulse photometry probe according to a fourteenth aspect, from the surface of the mounting tape portion which is in contact with the living tissue, the first hole and the second hole are formed.
The holes are sealed with a light-transmitting sheet. As a result, when the probe is attached to the biological tissue, it is possible to prevent the portion of the biological tissue that comes into contact with the edge portion of the hole provided in the attachment tape portion from being necrotized by excessive pressure.

Further, the invention of a pulse photometry probe according to a fifteenth aspect comprises a light emitting section for emitting light to a living tissue, and a light receiving section for receiving light emitted by the light emitting section and transmitted through the living tissue. A mounting tape section having the light emitting section and the light receiving section attached thereto and having a compressibility for being wound and mounted on the living tissue; and a state in which the mounting tape section is wound and mounted on the living tissue. And a fastening portion for maintaining the mounting tape portion,
A compressive member and a cover tape having an adhesive surface on one side, and the adhesive surface of the cover tape is attached to the surface that adheres to the compressive member and the surface of the attaching tape portion that does not contact biological tissue. The cover tape has a surface serving as a retaining portion, the cover tape has a first hole for transmitting light emitted from the light emitting portion, and the light receiving portion for transmitting light emitted by the light emitting portion and transmitted through the living tissue. Has a second hole for receiving light, and the light emitting portion is detachably mounted on the surface of the cover tape that is not adhered to the compressive member so that the light emitted can pass through the first hole. The light receiving portion is detachably attached to the surface of the cover tape that is not adhered to the compressible member so that the light receiving portion receives light from the second hole, and the light emitted from the light emitting portion is attached to the living body assembly. Portion of the compressible member that transmits the up transmission and reaching the light receiving portion at least, characterized by having a light transmitting property. Thereby, when the probe is attached to the biological tissue, it is possible to prevent the biological tissue portion contacting the edge portion of the hole provided in the attachment tape portion from being necrosed by excessive pressure, and the number of parts of the probe is reduced. Can be reduced.

Further, the invention of a pulse photometry probe according to a sixteenth aspect is the structure of the fifteenth aspect,
The mounting tape portion has an adhesive surface for attaching the light emitting portion and the light receiving portion, and at least the surface of the light emitting portion and the light receiving portion attached to the adhesive surface is a pile fabric. Thereby, the light emitting portion and the light receiving portion can be peeled off from the mounting tape portion with a light and moderate force.

[Brief description of drawings]

FIG. 1 is a diagram showing an appearance of a pulse photometry probe according to a first embodiment.

FIG. 2 is an exploded view of a mounting tape portion of the pulse photometry probe according to the first embodiment.

FIG. 3 is a diagram showing a cross-sectional view of a mounting tape portion of the pulse photometry probe according to the first embodiment.

FIG. 4 is a diagram showing how the pulse photometry probe according to the first embodiment is worn on a finger.

FIG. 5 is a diagram showing how the pulse photometry probe according to the first embodiment is worn on a foot.

FIG. 6 is an exploded view of a pulse photometry probe according to a second embodiment.

FIG. 7 is a diagram showing a cross-sectional view of a light emitting unit or a light receiving unit of the pulse photometry probe according to the second embodiment.

FIG. 8 is a diagram showing an appearance of a light emitting unit or a light receiving unit of the pulse photometry probe according to the second embodiment.

FIG. 9 is an exploded view of a pulse photometry probe according to a third embodiment.

FIG. 10 is a diagram showing how the pulse photometry probe according to the third embodiment is worn on a foot.

FIG. 11 is an exploded view of the pulse photometry probe according to the fourth embodiment.

FIG. 12 is a view showing a cross-sectional view of a mounting tape portion of a pulse photometry probe according to a fourth embodiment.

FIG. 13 is an exploded view of another pulse photometry probe according to the fourth embodiment.

FIG. 14 is an exploded view of a pulse photometry probe according to a fifth embodiment.

FIG. 15 is a view showing a cross-sectional view of a mounting tape portion of a pulse photometry probe according to a fifth embodiment.

[Explanation of symbols]

1 light emitting part 2 Light receiving part 3 Y-cable 4 connectors 5,5B sponge 6 plates 7 double-sided tape 8 double-sided tape 9 cover tape 10 Adhesive surface 11 Release paper 12 Release paper 13 First hole 14 Second hole 15 Light-transmissive sheet 20 Measuring element 30 mounting tape 40 surface fastener

Continued front page    F-term (reference) 4C017 AA09 AA11 AB03 AB10 AC27                       FF24 FF30                 4C038 KL07

Claims (16)

[Claims] 1. A light emitting unit for emitting light to living tissue, a light receiving unit for receiving light emitted by the light emitting unit and transmitted through the living tissue, the light emitting unit and the light receiving unit are attached, and A mounting tape part having a compressibility for winding and mounting on the living tissue; and a fastening part for maintaining the mounting tape part wound and mounted on the living tissue, The tape portion has a first hole for passing light emitted from the light emitting portion and a second hole for transmitting light emitted by the light emitting portion and transmitted through the living tissue and received by the light receiving portion. And the light emitting portion is configured to pass light emitted to the first hole,
And detachably attached to the surface of the mounting tape portion that does not come into contact with biological tissue, and the light receiving portion is detachably attached to the surface of the mounting tape portion that does not come into contact with biological tissue and that is detachable. A pulse photometry probe characterized in that it is attached so that it is possible. 2. The pulse photometry probe according to claim 1, wherein the mounting tape portion includes a compressive member and a cover tape having an adhesive surface on one side, and the adhesive surface of the cover tape is the compressed tape. A pulse photometry probe having a surface that adheres to a member and a surface that becomes the retaining portion by adhering to a surface of the mounting tape portion that does not come into contact with living tissue. 3. The pulse photometry probe according to claim 1, wherein the mounting tape portion is attached to the living tissue of the mounting tape portion below a surface on which the light emitting portion and the light receiving portion are mounted. In the mounted state, a plate for displacing the pressure from the light emitting unit and the light receiving unit to the living tissue due to winding is embedded, and the pulse photometry probe is embedded. 4. The pulse photometry probe according to any one of claims 1 to 3, wherein the mounting tape portion is provided at a position where the light emitting portion and the light receiving portion are attached. A pulse photometry probe, wherein tapes for removably attaching the light receiving portion are attached respectively. 5. The pulse photometry probe according to claim 2, wherein the compressive member or the cover tape has a light shielding property. 6. The pulse photometry probe according to claim 3, wherein each of the plates is provided with a hole for passing light to be emitted and light to be received, and the plate itself has a light shielding property. Pulse photometry probe. 7. The pulse photometry probe according to claim 4, wherein the tape for removably attaching the light emitting section and the light receiving section has a light blocking property, and light emitted from the light emitting section A pulse photometry probe, each of which is provided with a hole for allowing light to be received by the light receiving section. 8. The pulse photometry probe according to claim 1, wherein the mounting tape portion has a planar fastener at a position where the light emitting portion and the light receiving portion are attached. A pulse, wherein a hook portion or a loop portion is provided, and the loop portion or the hook portion of the planar fastener is provided on at least the surfaces of the light emitting portion and the light receiving portion that are attached to the mounting tape portion, respectively. Photometric probe. 9. The pulse photometry probe according to claim 8, wherein the hook portion and the loop portion of the planar fastener have a light blocking property, and the light emitted from the light emitting portion and the light receiving portion receive light. A pulse photometry probe, each of which is provided with a hole for allowing light to pass therethrough. 10. The pulse photometry probe according to claim 4, wherein the tape has an adhesive surface for attaching the light emitting unit and the light receiving unit, and at least the adhesive surface of the light emitting unit and the light receiving unit. A pulse photometry probe characterized in that the surface attached to is a pile material. 11. The pulse photometry probe according to claim 4, wherein the mounting tape portion of the tape is flat, and the light emitting portion and the light receiving portion are attached to the tape in predetermined states. The pulse photometry probe is formed and arranged so that the base ends of the lead wires of the light-emitting portion and the light-receiving portion form an angle of 60 ° to 120 ° with each other when being turned on. . 12. The pulse photometry probe according to claim 8 or 9, wherein the hook portion or the loop portion of the planar fastener attached to the mounting tape is such that the mounting tape portion is in a flat state. When the light emitting portion and the light receiving portion are attached to the hook portion or the loop portion of the sheet fastener in a predetermined state, the directions of the base end portions of the lead wires of the light emitting portion and the light receiving portion are mutually 60 °. A pulse photometry probe, which is formed and arranged so as to form an angle of 120 ° from. 13. The pulse photometry probe according to any one of claims 2 to 12, wherein the compressive member is a sponge. 14. The pulse photometry probe according to any one of claims 1 to 13, wherein the surface of the mounting tape portion on the side in contact with the biological tissue,
The pulse photometry probe, wherein the first hole and the second hole are sealed by a light-transmitting sheet. 15. A light emitting unit for emitting light to living tissue, a light receiving unit for receiving light emitted by the light emitting unit and transmitted through the living tissue, the light emitting unit and the light receiving unit are attached, and A mounting tape part having a compressibility for winding and mounting on the living tissue; and a fastening part for maintaining the mounting tape part wound and mounted on the living tissue, The tape portion is composed of a compressive member and a cover tape having an adhesive surface on one side, and the adhesive surface of the cover tape is attached to a surface that adheres to the compression member and a surface of the attachment tape portion that does not contact biological tissue. The cover tape has a surface that serves as the fastening portion, and the cover tape has a first hole for passing light emitted from the light emitting portion and a light emitted by the light emitting portion and transmitted through the biological tissue. Through It has a second hole for receiving light by the light receiving section, and the light emitting section allows light to be emitted to the first hole,
Also, the cover tape is removably attached to a surface of the cover tape that is not adhered to the compressible member, the light receiving portion receives light from the second hole, and the surface of the cover tape that is not adhered to the compressible member. Characterized in that at least a portion of the compressive member, which is removably attached to the light-emitting portion, transmits the light emitted from the light-emitting portion through the biological tissue and reaches the light-receiving portion, is light-transmissive. Pulse photometry probe. 16. The pulse photometry probe according to claim 15, wherein the mounting tape part has an adhesive surface for attaching the light emitting part and the light receiving part, and at least the light emitting part and the light receiving part. A pulse photometry probe characterized in that the surface attached to the adhesive surface is a pile material.