JP2005110816A - Probe of oximeter, probe cover and probe with cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent pains from being felt even if a probe of an oximeter is worn for a long period of time, to enable a patient himself/herself to easily wear it, to recycle probe components and to lower a running cost. <P>SOLUTION: A probe cover 7 is constituted of a bag-shaped body part 70 where the probe 3 is housed, a first ring-shaped locking part 71 positioned on the root side of a finger, and loosely fitted with the finger at the time of putting the bag-shaped body part 70 on a measured finger, and a second ring-shaped locking part 72 positioned on a fingertip side for tightly fixing the bag-shaped body part 70 to a fingertip part. The second ring-shaped locking part 72 is constituted of a first short belt piece 721 and a second long belt piece 722, it is temporarily fixed to the measured finger by an adhesive layer 723 of the first belt piece 721, the second belt piece 722 is wound around the outer periphery of the measured finger, and it is fixed by an adhesive layer 724. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pulse oximeter probe that non-invasively measures oxygen saturation in blood and a probe cover used when the probe is attached to a finger of a living body, particularly for screening for sleep apnea syndrome (SAS). The present invention relates to a probe and a probe cover suitable for applications in which a patient attaches a probe and wears it for a long time.

  For living tissue, oxygen is the most important substance for sustaining vital activities, and when the supply of oxygen is cut off, living tissue cells will be seriously damaged, so clinically monitor the oxygen concentration in living tissue Significance is enormous. As a method for monitoring the oxygen concentration, oxygen supply to living tissue is performed by arterial blood. Therefore, by monitoring the pulse rate and blood oxygen saturation, whether or not oxygen supply to living tissue is appropriately performed. A method of grasping this is generally adopted. Conventionally, a pulse oximeter is known as a device for measuring oxygen saturation of arterial blood and the like. This pulse oximeter emits light toward a living body (finger) by, for example, attaching a probe including a light emitting unit and a light receiving unit to a patient's finger, and pulses a change in the amount of light passing through the living body. It is measured as a signal, and the value of oxygen saturation is obtained by moving average the measured values every second.

  By the way, sleep apnea syndrome (SAS), which causes various symptoms from sleep apnea and hypopnea, not only triggers hypertension, cerebrovascular disorder and ischemic heart disease, but also increases productivity associated with sleepiness. It is thought to cause a decline and serious occupational accidents, and has become a social problem in recent years. As one of such SAS screening methods, there is a case where a method of measuring fluctuations in blood oxygen saturation during sleep of a patient using the above-described pulse oximeter may be employed. When such a SAS screening is performed, a patient attaches a pulse oximeter probe to his / her fingertip or the like and keeps wearing it all night (while sleeping). Therefore, it is particularly required that the pulse oximeter used for this purpose is easy to wear and the patient does not feel uncomfortable with long-time wearing.

  The currently widely used pulse oximeter probe has a clip-shaped clamping member mounted with a light-emitting element and a light-receiving element for inspection as a probe, and a type in which a test part (fingertip) is sandwiched between the probes is attached. It is common. This type can be said to be excellent in ease of wearing because it is sufficient to simply pinch the fingertip. However, since the fingertip is pinched, it is accompanied by a feeling of pressing, and if it is worn for a long time, it may cause unbearable pain, so it is unsuitable for screening for SAS that requires wearing all night. In addition, due to such pain, sleeping as usual may not be possible, which may affect the screening results. On the other hand, measures can be taken to reduce the pinching force of the pinching member of the probe as much as possible in order to relieve pain, but it is relatively easy to come off from the finger, and the probe can be easily touched when the patient turns over. There is a risk that it will fall off. If such a probe detachment occurs, the patient will be burdened with another measurement with a different date, and it must be said that such a measure is also unsuitable for SAS screening.

  Unlike the clip type as described above, a sticking type disposable probe is also known. In this type, the probe component is attached to the finger, and the probe component is foreskin-fixed to the finger using adhesive tape, etc. Is excellent. However, since the light-emitting element, light-receiving element, cable, and various components are disposable (because they are directly attached to the finger), the running cost increases, and waste is mass-produced, so that it is environmentally friendly. It is not preferable.

  As an approach for solving such a problem, it is conceivable to employ a probe of the type disclosed in Patent Document 1, for example. FIG. 13 is a partially broken plan view showing the probe 90. This probe is also basically a sticking type, and a probe 91 (light emitting element 911 and light receiving element 912) is housed in a sleeve 92 made of a bag-like transparent member made of a flexible member such as polyethylene, and this is attached to a living body. The adhesive surface 931 of the adhesive tape (strip) 93 for fixing is attached to a predetermined position, and the adhesive surface 931 is covered with a release paper 932. In use, the release paper 932 is peeled off and attached to the finger so that the fingertip portion is positioned at the intermediate portion between the light emitting element 911 and the light receiving element 912.

According to such a configuration, since the probe 91 is covered with the sleeve 92, the reusability can be surely expected. However, this is a system in which the sleeve 92 for housing the probe 91 and the strip 93 for fixing to the living body are configured as separate members, and it is necessary to prepare two parts as a cover member for the probe 91. There is an inconvenience that it is disadvantageous. Further, when the probe 91 is removed, the end portion 94E of the probe cable 94 is attached to the adhesive surface 931 of the strip 93. Therefore, the probe cable 94 cannot be easily removed or the adhesive is attached to the surface of the probe cable 94. Inconvenience occurs. Further, when the probe 91 is reused, the probe 91 is inserted into the sleeve 92, the sleeve 92 is affixed to a predetermined position of the adhesive surface 931 of the adhesive tape (strip) 93, and the surface is covered with the release paper 932. However, it is not easy for the patient himself to set such a probe, and it must be said that it is unsuitable for SAS screening applications.
US Pat. No. 5,090,410

  The present invention has been made in view of the circumstances as described above, and firstly, soft wearability that does not give pain to a patient even if the probe is worn for a long time for SAS screening or the like, Secondly, the oximeter has the ease of mounting that the patient can easily mount the probe on his / her finger, and thirdly the probe parts can be reused instead of being disposable, thereby reducing the running cost. An object of the present invention is to provide a probe and a probe cover.

  A probe cover for an oximeter according to claim 1 of the present invention is a probe cover having a function of containing a probe of an oximeter and fixing the probe to a finger, and a flexible bag in which the probe is stored And a locking part for fixing the main body part to a finger. A part or all of the bag-like main body part is translucent. It is characterized by being comprised of a sex member.

  The probe cover according to a second aspect is the probe cover according to the first aspect, wherein the bag-shaped main body portion is in contact with a first portion that is in contact with the back portion of the finger, a second portion that is bent in contact with the fingertip portion, and an abdominal portion of the finger. A flat bag shape having a third portion is provided.

  In the above configuration, the locking portion is positioned on the fingertip side and the first ring-shaped locking portion that is located on the finger base side and the finger is loosely fitted when the bag-like main body portion is attached to the finger. It is preferable that the bag-shaped main body portion is configured to include a second ring-shaped locking portion that tightly fixes the fingertip portion to the fingertip portion. Further, the second ring-shaped locking portion is composed of a first strip and a second strip each extending from the bag-shaped main body, and the first strip and the second strip. Are preferably each provided with an adhesive layer. In addition, it is preferable that the first ring-shaped locking portion and the tip end portion of the bag-shaped main body portion can be fixed.

  Furthermore, in the probe cover according to claim 1, a cable guide portion through which the probe cable of the oximeter is inserted may be detachably attached to the bag-shaped main body portion (Claim 6). A positioning indicator for containing the oximeter probe in a predetermined position may be provided on the surface of the part (claim 7).

  According to an eighth aspect of the present invention, in the probe cover according to the first aspect, the bag-shaped main body portion includes a first portion that is in contact with the back portion of the finger, a second portion that is bent in contact with the fingertip portion, and a second portion that is in contact with the abdomen of the finger. 3 has a flat bag shape, and when the bag is attached to the finger of the bag-like main body portion, the locking portion is formed in the bag shape with the finger base side of the first portion of the bag-like main body portion as a base. A first ring-shaped locking portion that extends in a ring shape in a direction orthogonal to the longitudinal direction of the main body portion, and a finger is loosely fitted, and the bag with the fingertip side in the first portion of the bag-shaped main body portion as a base portion A second ring-shaped engagement that extends in a band shape in a direction perpendicular to the longitudinal direction of the main body, and tightly fixes the bag-like main body to the fingertip portion so as to wrap the third portion of the bag-like main body from the outside. It consists of a stop part.

  The probe for an oximeter according to claim 9 of the present invention is an oximeter probe to be attached to a finger, and is arranged on each of the back side and the abdomen side of the finger, at least one of which is made of a hard resin. A light-emitting part and a light-receiving part having a contact surface with a finger, and a flexible connecting part that connects the light-emitting part and the light-receiving part and is bent or curved at the fingertip part. The light emitting unit, the light receiving unit, and the flexible coupling unit are integrally attached to a terminal portion of the probe cable for electrical connection with the oximeter in a state of being linearly arranged. Is.

  In such a probe, it is preferable to perform a tapering curve process on a tip portion of the probe integrally attached to the end portion of the probe cable. Moreover, it is preferable that the surface facing the finger | toe of the said light emission part and / or a light-receiving part is made into the concave curved surface which adapts the surface shape of a finger | toe (Claim 11).

  Furthermore, a probe with a cover for an oximeter according to a twelfth aspect of the present invention is provided integrally with the probe according to the ninth aspect, a flexible bag-like main body portion in which the probe is accommodated, and the main body portion. A probe cover having a locking portion for fixing the main body portion to a finger, and the bag-like main body portion of the probe cover includes a light emitting surface of the light emitting portion and a light receiving portion of the light receiving portion when the probe is stored. The part where the incident surface exists is composed of at least a translucent member.

  According to the probe cover for an oximeter according to claim 1 of the present invention, the probe is accommodated in the bag-shaped main body, and the measuring finger is attached to the measuring finger by the locking portion provided integrally with the bag-shaped main body. Since the bag-like main body is configured to be fixed, it is possible to diversify the manner in which the probe is fixed to the measuring finger by variously devising the locking portion. Therefore, in the conventional clip type, it was possible to take only a fixed aspect of pinching the finger with the holding member, but according to the configuration of the present invention, for example, by making the locking portion a belt-like thing and winding it around the finger, It is possible to easily set a probe fixing mode suitable for the situation, such as a patient fixing mode without pain. Moreover, since the bag-like main body portion and the locking portion are integrated and configured with one member, it is advantageous in terms of cost.

  In addition, the preparatory work for attaching the probe to the measuring finger is only to store the probe in the bag-like main body, and the setting work can be greatly simplified as compared with the method of Patent Document 1 described above. is there. Furthermore, if the probe is taken out of the bag-shaped body after measurement and a new probe cover is attached and used for other people's measurement, the probe will not touch the human skin directly and will be hygienic. There is also an effect that the running cost can be reduced because it is not necessary to use a disposable. In this case, in the present invention, since the probe is housed in the bag-shaped main body, there is an advantage that the problem of adhesion of the adhesive to the probe cable which is a concern when the method of Patent Document 1 is adopted does not occur. .

  According to the probe cover provided with the bag-shaped main body according to claim 2, for example, when the probe is inserted into a predetermined position, the light emitting part of the probe is arranged in the first part that contacts the back part (claw part) of the finger. If the light receiving part is arranged at the third part in contact with the abdomen of the finger, the bag-like main body part is vertically attached to the measuring finger, and it is simply fixed to the finger with an appropriate locking part. Since attachment is completed, the attachment property of the probe to the measuring finger can be improved.

  As in the probe cover according to claim 3, the locking portion includes a first ring-shaped locking portion that is positioned on the finger base side and the finger is loosely fitted, and a bag-shaped main body portion that is positioned on the fingertip side. By separating the second ring-shaped engaging portion that is closely fixed to the fingertip portion, the area covered with the finger by the probe cover can be reduced as much as possible, and discomfort to the patient can be further reduced. The first ring-shaped locking portion secures the restraining action of the bag-shaped main body on the finger when a pulling force is applied to the probe cable, and the probe itself is secured by the second ring-shaped locking portion. By being configured to be restrained, it is possible to prevent external force from directly acting on the probe portion, and to effectively counter external force such as peeling force.

  In this case, if the second ring-shaped locking portion is composed of the first band piece and the second band piece as in the configuration of the fourth aspect, the first ring-shaped locking portion has a measuring finger. The probe cover is formed by covering the finger with the first and second strips as the second ring-shaped locking portion after the bag-like main body is vertically attached to the measuring finger. Can be easily attached to the measuring finger.

  In addition, as in the configuration of the fifth aspect, the first ring-shaped locking portion and the distal end portion of the bag-shaped main body can be fixed, thereby further improving the stability of fixing the probe cover to the measuring finger. To be able to.

  According to the probe cover of the sixth aspect, the probe guide is inserted and the cable guide portion that can be separated from the bag-like main body portion is provided. For example, after the main body portion is attached to the measuring finger, the cable guide portion is separated. If the cable guide portion is adhered to the back of the hand, wrist, etc. by sliding along the cable, there is an advantage that the slack of the extra length of the probe cable can be suppressed.

  According to the probe cover of the seventh aspect, since the positioning display part for containing the probe of the oximeter at a predetermined position is provided on the surface of the bag-like main body part, it is easy to store the probe in the bag-like main body part. It is possible to improve the handling by patients and the like.

  According to the probe cover according to the eighth aspect, the bag-shaped main body in which the probe is housed is vertically attached to the finger so as to reach the abdomen from the back part of the measurement finger to the abdomen. By loosely fitting the finger, the bag-like main body portion and the measurement finger are roughly locked, and the fingertip portion to which the probe is attached is closely fixed by the second ring-shaped locking portion. While ensuring good adhesion to the fingertip part, it does not impede blood flow by compressing the base part of the finger, and prevent external forces such as the pulling force of the probe cable from acting directly on the probe it can. Therefore, there are effects that the mounting stability of the probe is improved and a factor that hinders accuracy in measurement of oxygen saturation and the like can be eliminated.

  According to the oximeter probe of the ninth aspect of the present invention, the light emitting part and the light receiving part for sensing, and the flexible connecting part for connecting the light emitting part and the light receiving part are arranged in a straight line, which is connected to the end of the probe cable. Since it is attached to the body as a single unit, it can be inserted into and stored in the bag-shaped main body of the probe cover described above, particularly the elongated bag-shaped main body that is vertically attached from the back of the measuring finger to the abdomen through the fingertips. This is a very suitable form of probe. And since at least one of the said light emission part and the light-receiving part was comprised with hard resin, the problem of the position shift of the light emission part and light-receiving part which is a concern when a soft member is used can be eliminated.

  In this case, as in the configuration of the tenth aspect, the probe can be easily inserted into the bag-like main body by subjecting the distal end portion of the probe to a tapered curved surface. In addition to the processing of the tip portion, the ease of insertion can be further improved by providing a wing-shaped guide portion or the like on the side surface portion of the probe. Further, as in the configuration of claim 11, by making the surface facing the finger of the light emitting unit and / or the light receiving unit a concave curved surface that conforms to the surface shape of the finger, the fit to the measuring finger is improved, The degree to which the patient feels pressure can be further reduced.

  Furthermore, according to the probe with a cover for an oximeter according to the twelfth aspect of the present invention, the probe itself is not provided with any mounting means, and the probe is housed in the bag-like main body portion of the cover, The structure which attaches to a measurement finger with the latching | locking part integrally provided in 1 is employ | adopted. Therefore, it is easy to attach to the measuring finger, and even if it is worn for a long time, there is no pain, and by replacing the cover, the probe can be reused hygienically, and the running cost can be suppressed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the electrical configuration of a pulse oximeter that is one of the preferred application objects of the present invention, and FIG. 2 is a perspective view showing the mounting state of the pulse oximeter on an arm.

  In these drawings, the pulse oximeter includes a main body 1 and a probe 3, and the two are electrically connected by a probe cable 15 with a connector 16. The pulse oximeter body 1 is equipped with a wristband 2, and the wristband 2 can be attached to the arm 21 near the wrist. The probe 3 is attached to a measuring finger that actually measures oxygen saturation and the like as will be described later.

  The pulse oximeter main unit 1 includes a measurement unit (control unit) 11, a calculation unit 12, a display unit 13, and a power supply unit 14 including a primary battery and a rechargeable secondary battery. The measurement unit 11 includes a microprocessor and controls each unit with a control signal according to data or a program stored in a storage device (not shown). The calculation unit 12 includes a microprocessor, a DSP, and the like, and according to data and programs stored in a storage device (not shown), the oxygen saturation in the arterial blood, the pulse rate, and the like from the pulse signal input from the probe 3 Is calculated. Further, the display unit 13 is a display device that displays data processed by the calculation unit 12 (for example, oxygen saturation and pulse rate). For example, the display unit 13 is a liquid crystal display device, an organic photoluminescence display device, or a CRT. (Cathode-Ray Tube) or the like is used.

  The probe 3 includes a light emitting unit 31 and a light receiving unit 32. The light emitting unit 31 is a light source unit that alternately emits red light R having a wavelength λ1 in the red region and infrared light IR having a wavelength λ2 in the infrared region, for example, red light R having a wavelength λ1 and infrared light having a wavelength λ2. A light emitting element such as a light emitting diode (LED) that emits light IR is provided. In the light emitting unit 31, the light emitting element is appropriately driven by a control circuit (not shown), and the emission of red light R and infrared light IR is controlled. The light receiving unit 32 includes a photoelectric element that generates a current corresponding to the intensity of light received (light emitted from the light emitting unit 31). The photoelectric element includes at least a wavelength λ1 and a wavelength λ2. For example, a silicon photo diode having photosensitivity is used. The light receiving unit 32 is controlled in synchronization with light emission of the light emitting unit 31 by a control circuit (not shown), and generates a current signal (pulse signal) obtained by photoelectrically converting the received light according to the light intensity. This current signal is transmitted to the pulse oximeter main body 1 so that the above-described calculations such as the oxygen saturation and the pulse rate are performed based on the current signal.

  FIG. 3 is an enlarged perspective view showing a portion of the probe 3. As shown in FIG. 4, the probe 3 is attached from the back part (nail part) of the measuring finger 40 to the abdomen through the fingertip. FIG. 3 is drawn with the surface in contact with the finger on the front side. Yes. As shown in the drawing, the probe 3 includes a light emitting unit 31 disposed on the back side of the measuring finger 40 and a light receiving unit 32 disposed on the abdomen side of the measuring finger 40 which are bent or curved at the fingertip portion. Are connected by a flexible connecting portion 35, and the rear end side of the light emitting portion 31 is integrally connected to a terminal portion of the probe cable 15 for electrical connection with the pulse oximeter main body portion 1. . That is, the light emitting unit 31, the light receiving unit 32, and the flexible connecting unit 35 are integrally attached to the terminal portion of the probe cable 15 in a linear arrangement.

  In the present embodiment, the light emitting unit 31 is configured by incorporating the above-described light emitting element in a rectangular case made of a hard resin molded product or the like, and at a substantially central portion of the contact surface 310 with the measurement finger. The light emitting window 33 is provided so that the light emitted from the light emitting element can be projected onto the finger. Similarly, the light receiving unit 32 is configured by incorporating the above-described photoelectric element in a rectangular case made of a hard resin molded product or the like, and at the substantially central portion of the contact surface 320 with the measurement finger, A light receiving window portion 34 is provided for allowing measurement light projected from the light emitting portion and passing through the measuring finger 40 to enter the photoelectric element. Note that both the light emitting unit 31 and the light receiving unit 32 do not necessarily need to be made of a hard resin, but if they are made of a soft material, the contact state with the measuring finger tends to become unstable and misalignment is likely to occur. Therefore, it is desirable that both the light emitting unit 31 and the light receiving unit 32 are made of hard resin. In addition, the entire light emitting unit 31 and light receiving unit 32 do not necessarily have to be made of hard resin, and at least the contact surfaces 310 and 320 with the measuring finger 40 need only be made of hard resin.

  The flexible connecting portion 35 is made of a soft synthetic resin, rubber, or the like, and is made of a cylindrical member that is provided with a large number of concave portions on the surface to improve flexibility. Both ends of the flexible connecting portion 35 are fixed to the light emitting portion 31 and the light receiving portion 32 by a method such as welding to a rectangular case constituting the light emitting portion 31 and the light receiving portion 32, or by meshing with the case. Yes. In addition, electric wires for the light receiving unit 32 are housed inside the flexible connecting unit 35. The flexible connecting portion 35 is bent or curved along the fingertip and needs to have good flexibility. However, if the flexible connecting portion 35 is too soft, it is difficult to insert the probe cover into the bag-like main body as will be described later. Therefore, it is desirable to have appropriate rigidity. Further, it is desirable to have a resilience that restores the original straight line when the bending force is released.

In such a probe 3, the surfaces of the light emitting unit 31 and / or the light receiving unit 32 facing the finger (contact surfaces 310 and 320 with the measuring finger) are concave curved surfaces that match the surface shape of the measuring finger 40. It is desirable. In the embodiment shown in FIG. 3, the contact surface 320 of the light receiving unit 32 that contacts the abdomen of the relatively soft measuring finger 40 is a concave curved surface. Of course, the contact surface 320 may be a flat surface. However, if the contact surface 320 is a flat surface, the contact area with the measurement finger 40 is reduced, and there is a risk that the finger is locally pressed and painful. Therefore, it is desirable to provide a concave curved surface at least on the surface in contact with the soft abdomen side as in this embodiment. Furthermore, the contact surface 310 of the light emitting unit 31 is also desirably a concave curved surface that matches the back surface shape of the measuring finger 40. As described above, the light emitting unit 31 and the light receiving unit 32 are made of hard resin, and the contact surfaces 310 and 320 are formed in a concave curved surface that fits the measuring finger 40, so that there is virtually no displacement or pressure. It can be set as the outstanding probe 3 which does not arise.

  FIG. 5 is a side view showing a state in which the probe 3 described above is actually attached to the measuring finger 40 using a medical tape 50 such as a surgical tape or an emergency bandage. In this mounting mode, the light emitting part 31 of the probe 3 is attached to the back part of the measuring finger 40, the flexible connecting part 35 is bent along the fingertip and turned 180 °, and the light receiving part 32 is attached to the abdominal part of the measuring finger 40. In such a state, the medical tape 50 is wound around the outer circumference of the measuring finger 40 so as to enclose the light emitting unit 31 and the light receiving unit 32, so that the light emitting unit 31 has the adhesive force of the medical tape. The light receiving unit 32 is positioned and fixed to the measuring finger 40.

  The probe 3 according to the present invention can be directly attached to the measuring finger 40 using the medical tape 50 or the like as described above. However, such a mounting method is not a preferable method when the probe must be mounted by the patient himself or herself in SAS screening or the like. That is, the operation of winding the medical tape 50 with the probe 3 attached to the measuring finger 40 is difficult without an assistant, and the light emitting unit 31 and the light receiving unit 32 are in a predetermined positional relationship. This is because it may be fixed in a state where it is not arranged. Furthermore, from the viewpoint of reusing the probe 3, it is not desirable that the probe 3 directly touch the measuring finger 40. Even if sterilization or cleaning is performed and reused, the adhesive of the medical tape 50 may remain attached to the probe 3 and the cleaning operation may not be performed easily.

  Under such circumstances, the probe 3 according to the present invention is housed in, for example, a bag-like main body portion 70 of a disposable probe cover 7 as shown in FIG. It is desirable to adopt a mounting mode in which the portion 710 is fixed to the measuring finger 40. In adopting such a mounting mode, a desirable shape device on the probe 3 side will be described first with reference to FIG.

  FIG. 6 is a perspective view of the probe 3 as seen from the back side (the side opposite to FIG. 3). In this embodiment, the distal end portion of the light receiving portion 32 which is the far end with respect to the end portion of the probe cable 15 is the insertion end 3 </ b> S of the probe 3. The insertion end 3 </ b> S of the probe 3 is subjected to tapering curved surface processing for facilitating insertion into the bag-like main body 70. Specifically, a guide ridge portion 323 having a wing shape is formed on both sides of the back surface 32R of the light receiving portion 32, and the guide ridge portion 323 has a tapered surface 321 inclined downward toward the insertion end 3S side. Has been. Further, curved surface processing is performed on both sides of the tapered surface 321. Further, a curved surface portion 322 is formed by R surface processing or the like at the corner portion on the insertion end 3S side of the contact surface 320 on the front surface side of the light receiving portion 32. By providing the taper surface 321 and the curved surface portion 322, the insertion property of the bag-like main body portion 70 into the entrance and the progress in the bag-like main body portion 70 are good, and the probe 3 is moved to the bag-like main body portion 70. It can be easily stored.

  In addition to such a tapered surface processing, in this embodiment, a guide protrusion is provided on the side surface portion of the probe 3 to further improve the insertability. That is, the light receiving portion 32 is provided with the above-described wing-shaped guide ridge portion 323, and the wing-shaped guide ridge portion 313 is also provided on both sides of the back surface 31 </ b> R of the light emitting portion 31. The flat bag-shaped main body 70 is expanded with the portion 322, and the ease of insertion is improved by maintaining the expanded state with the guide protrusions 313 and 323 as the probe 3 advances. Is. Since the guide ridges 313 and 323 are in sliding contact with the bag-like main body 70, it is desirable that the surfaces thereof be smoothed or made of a material having good slipperiness.

(Basic embodiment of probe cover)
Next, an embodiment of the glove cover 7 will be described. FIG. 7 is a perspective view showing a basic embodiment of the probe cover 7 according to the present invention. The probe cover 7 includes a flexible bag-like main body portion 70 in which the probe 3 is accommodated, and a locking portion 710 provided integrally with the main body portion 70 for fixing the main body portion 70 to a measurement finger. It has.

  The bag-like main body 70 can be formed of a bag made of a flexible material, for example, transparent polyethylene, polypropylene, polyolefin, and the like, having translucency. Note that the bag-like main body portion 70 does not necessarily have to be formed entirely of a transparent member, and at the time of storing the probe 3, at least the position where the light emitting window portion 33 and the light receiving window portion 34 of the probe 3 are present is at least. It only needs to be transparent. The shape of the bag-like main body 70 is such that the first portion 70-1 that contacts the back of the finger, the second portion 70-2 that is bent in contact with the fingertip portion, and the third portion 70 that contacts the abdomen of the finger. -3 and a flat and slender bag shape.

  The locking portion 710 is composed of two strips 711 and 712 that are integrally provided on the side portion in the longitudinal direction of the bag-like main body portion 70 (side portion of the first portion 70-1). Adhesive layers 713 and 713 are attached to the inner side surface of one strip-like piece 711 at the protruding tip side corner portion, respectively. In addition, adhesive layers 714 and 714 are attached to the outer side surface of the other strip 712, respectively, at the protruding tip side corner portion. When these adhesive layers 713 and 714 are overlapped and joined to each other, the two strips 711 and 712 form a locking portion 710 having a ring shape, and a measuring finger is placed on the ring-shaped locking portion 710. The probe cover 7 (bag-like main body portion 70) is attached to the measuring finger in a form of being wrapped and wrapped. The adhesive layers 713 and 714 can be composed of a double-sided tape, a hook-and-loop fastener, or the like.

  When the probe cover 7 is actually attached to the measuring finger, the probe 3 as shown in FIG. 6 is first inserted into the bag-like main body 70 to a predetermined position. That is, the first portion 70-1 of the bag-shaped main body 70 has the light emitting portion 31 of the probe 3, the second portion 70-2 has the flexible connecting portion 35, and the third portion 70-3 has received the light. The probe 3 is inserted so that the part 32 is located. Next, the second portion 70-2 (flexible connecting portion 35) of the bag-like main body portion 70 is bent at the fingertip portion, and the third portion 70-3 is folded along the belly of the measuring finger. Then, the two strips 711 and 712 are wound around the measuring finger so as to wrap around the folded third portion 70-3, and the attachment is completed by joining the respective adhesive layers 713 and 714 together. In this case, it is preferable to provide a temporary fixing adhesive layer or the like at the tip of the third portion 70-3 because winding with the strips 711 and 712 can be easily performed.

(Specific Embodiment 1 of Probe Cover)
FIG. 8 is a perspective view showing an example of a more specific embodiment of the probe cover 7. The probe cover 7 is the same as the basic embodiment described above in that it includes a bag-like main body 70 in which the probe 3 is accommodated, but differs in that the locking portion is separated into two parts. That is, the locking portion in the present embodiment includes a first ring-shaped locking portion 71 that is located on the base side of the finger and loosely fits with the fingertip when the bag-like main body portion 70 is attached to the measuring finger 40, and the fingertip. And a second ring-shaped locking portion 72 that is positioned on the side and tightly fixes the bag-like main body portion 70 to the fingertip portion.

  The bag-like main body portion 70 has one end which becomes an opening portion (probe insertion hole 701) by overlapping two sheets made of a light-transmitting and flexible material, for example, transparent polyethylene, polypropylene, polyolefin, etc., as described above. Except for the side, a bag is formed by welding a peripheral portion to an elongated “U-shape” (704 in FIG. 8 indicates a welded portion).

  In the probe insertion hole 701 of the bag-like main body 70, the upper and lower sheets 702 and 703 are curvedly cut with different lengths. As described above, the upper and lower sheets 702 and 703 have a stepped structure at the opening portions, whereby the probe 3 can be easily inserted into the bag-shaped main body 70. That is, as shown in FIG. 9, when inserting the distal end portion (insertion end 3S) of the probe 3 from the probe insertion hole 701, if the upper sheet 702 having a longer length is picked and turned up, the probe insertion hole 701 can be easily formed. Therefore, the probe insertion end 3S can be easily inserted into the probe insertion hole 701.

  In addition, a positioning display portion 705 for enclosing the probe 3 at an appropriate predetermined position of the bag-like main body portion 70 is provided on the bottom side of the bag-like main body portion 70, that is, the third portion 70-3 in contact with the abdomen of the finger. It has been. This positioning display part 705 is for allowing the insertion state of the probe 3 to the bag-shaped main body part 70 to be confirmed at a glance. The presence of the positioning display part 705 causes the insertion end 3S of the probe 3 to be When the positioning display unit 705 is reached, the patient or the like can confirm that the insertion has been properly completed, and erroneous mounting of the probe 3 can be prevented. In addition, the positioning display part 705 should just be visible, and may be comprised with a coloring line etc. FIG. Moreover, as long as an insertion state can be confirmed, you may provide in any position of the bag-like main-body part 70. FIG.

  The 1st ring-shaped latching | locking part 71 is made into the endless ring shape by which the edge part was integrally attached to the both sides of the bag-shaped main-body part 70, respectively. The measurement finger 40 is inserted into the first ring-shaped locking portion 71, and when the probe cover 7 is attached, the first ring-shaped locking portion 71 is positioned at the root portion of the measurement finger 40 and locked. Will act. Further, when a pulling force is applied to the probe cable 15 (particularly when a pulling force in the direction of lifting the probe cable 15 is applied), the first ring-shaped locking portion 71 is added from the probe cable 15. Accepts external force exclusively, ensures the restraining action of the bag-like main body part 70 on the measuring finger 40, and plays a buffering role so that the external force does not act directly on the light emitting part 31 and the light receiving part 32 of the probe 3. become.

  Such a first ring-shaped locking portion 71 is preferably set to have a ring inner diameter that is loosely fitted to the measuring finger 40. That is, it is desirable that the inner diameter of the ring is set so that it can be inserted with a considerable margin, rather than being closely fitted to the base portion of the measuring finger 40. By setting the loose fitting state in this way, it is possible to prevent the measurement finger 40 from being compressed (in particular, not to be compressed when the finger is bent) so as not to disturb the blood flow. Further, when the first ring-shaped locking portion 71 is closely fitted to the measuring finger 40, the probe cover 7 itself (the bag-shaped main body portion 70) is placed at the base of the finger when the measuring finger 40 is bent. The portion is pulled backward with the fixed point as a result, and as a result, the positional relationship between the light emitting unit 31 and the light receiving unit 32 of the probe 3 is shifted, and the measurement value may become unstable. Thus, if the loose fitting state is set as described above, even when the measuring finger 40 is bent, the first ring-shaped locking portion 71 slides appropriately with respect to the measuring finger 40, and thus the above-described problem occurs. Absent.

  The first ring-shaped locking portion 71 is not only an endless shape as in the present embodiment, but is composed of two strips that can be engaged with each other by, for example, a hook-and-loop fastener, etc. It is good also as an aspect which can adjust a ring internal diameter according to it.

  On the other hand, the second ring-shaped locking portion 72 is positioned at a predetermined distance from the first ring-shaped locking portion 71 (if the first ring-shaped locking portion 71 is positioned at the root portion of the measuring finger 40). For example, the second ring-shaped locking portion 72 is positioned in the vicinity of the second joint portion of the measuring finger 40), and the short first strip 721 extending from both side portions of the bag-like main body portion 70. And a relatively long second strip 722, and the first strip 721 and the second strip 722 are wound around the measuring finger 40, resulting in a ring shape. It has been done. Further, the first strip 721 and the second strip 722 are respectively provided with adhesive layers 723 and 724 made of double-sided tape or the like, and the first strip 721 is temporarily attached to the measuring finger 40. The second strip 722 can be freely locked.

  As described above, according to the second ring-shaped locking portion 72 configured by the short first strip 721 including the adhesive layers 723 and 724 and the relatively long second strip 722, respectively. When attaching the probe cover 7 containing the probe 3 to the measuring finger 40, the adhesive layer 723 included in the short first strip 721 is first adhered to the measuring finger 40, and the probe cover 7 is temporarily fixed to the measuring finger 40. Subsequently, the long second strip 722 is circulated along the outer periphery of the measuring finger 40, and the adhesive layer 724 is moved to the back side of the second strip 722 at a position where an appropriate tightening force can be secured. It is possible to adopt a mounting method for pasting. According to such a mounting method, since the second band 722 can be permanently fixed in a state of being temporarily fixed by the first band 721, the probe cover can be easily pulled even if the second band 722 is pulled. 7 is not displaced, and the mounting operation can be facilitated.

  Further, as described above, the locking portion is divided into the first ring-shaped locking portion 71 and the second ring-shaped locking portion 72, so that the locking portion is locked as compared with the embodiment shown in FIG. There is also an advantage that the area covered with the measurement finger 40 by the portion can be reduced as much as possible, and the discomfort to the patient can be further reduced in terms of air permeability. In order to further improve the effect, the first ring-shaped locking portion 71 and the second ring-shaped locking portion 72 may be provided with a small hole for ventilation.

  A pleat portion 73 extends from the third portion 70-3 of the bag-shaped main body portion 70. The pleat portion 73 is a portion outside the welded portion 704 of the upper and lower sheets 702 and 703 constituting the bag-like main body portion 70 (the portion ahead of the bag bottom portion of the bag-like main body portion 70), and is so-called welded. This is the extra length of the upper and lower sheets 702 and 703 that are not.

  By providing such a fold portion 73, when attaching the probe cover 7 to the measuring finger 40, the second portion 70-2 of the bag-like main body portion 70-2 is used as a fingertip, and the third portion 70-3 is provided. When the second band 722 is wound, the measurement of the bag-like main body 70 is performed. It is possible to prevent the attachment state of the finger from being displaced, thereby making it difficult for the probe 3 (light receiving unit 32) to be displaced, and to improve the mounting workability.

  A perforation 79 is provided on the probe insertion hole 701 side of the bag-like main body 70, and a small piece section partitioned by the perforation 79 can be separated from the bag-like main body 70 as a cable guide portion 8. Has been. The cable guide portion 8 functions as a part of the bag-shaped main body portion 70 when the probe 3 is inserted into the bag-shaped main body portion 70 and when the probe cover 7 is attached to the measuring finger 40 (therefore, the welded portion 704 is Is extended to the cable guide portion 8), and is detached after being attached to the measuring finger 40, and serves to guide the probe cable 15 of the inserted probe 3.

  A single fixing strip 80 is provided on the cable guide portion 8 so as to protrude in a direction perpendicular to the longitudinal direction of the bag-like main body portion 70, and one surface of the fixing strip 80 is an adhesive made of double-sided tape or the like. A layer 81 is provided. Note that the adhesive layer 81 may be directly provided on the bag-like main body portion 70 corresponding to the cable guide portion 8 without providing the fixing strip 80.

  When the cable guide 8 is disconnected at the perforation 79 after the probe 3 is stored in the bag-shaped main body 70, the cable guide 8 is separated from the bag-shaped main body 70, but the probe cable 15 is inserted. Since the state is not changed, the cable guide portion 8 can slide along the probe cable 15.

  Accordingly, when the probe cover 7 is actually attached, the cable guide portion 8 is cut off at the perforation 79 and slid to, for example, the back of the hand or the wrist portion, and the cable is formed by the adhesive layer 81 provided in the fixing strip 80 at the portion. The guide part 8 can be fixed. Here, the probe cable 15 has a smaller diameter than that of the normal probe 3, and the cable guide portion 8 includes a cylindrical portion of a size through which the probe 3 can be inserted. Therefore, the probe cable 15 is pulled by the cable guide portion 8. There will be no misalignment of the probe 3. By providing such a cable guide portion 8, it is possible to suppress the slack of the extra length of the probe cable 15. For example, the probe cable 15 slacks away without being along the back of the hand or the wrist, and the slack portion However, it is possible to solve the problem that the probe 3 is detached due to being caught on the corner of the futon.

  By using the probe cover 7 configured as described above, the patient himself can easily attach the probe 3 to the measuring finger 40 without the assistance of another person. Hereinafter, the mounting procedure will be described with reference to FIG.

  First, as shown in FIG. 10A, the probe 3 as shown in FIGS. 3 and 6 and the probe cover 7 as shown in FIG. 8 are prepared, and the insertion end 3S of the probe 3 is the probe cover 7. The probe 3 is inserted into the probe insertion hole 701, and the probe 3 is stored in the bag-like main body 70 of the probe cover 7. At this time, as shown in FIG. 9, the probe 3 is inserted by picking up and opening the upper sheet 702 having the longer end portion length, and further inserted until the insertion end 3S reaches the positioning display portion 705 described above. The Such work is a preliminary preparation when the probe cover 7 is attached to the measuring finger 40.

  Subsequently, as shown in FIG. 2B, the main body 1 of the pulse oximeter is attached to the arm 21 near the wrist using the wristband 2 provided on the main body 1. At this time, a probe cable 15 having an end portion of the probe 3 with the probe cover 7 covered is connected to the main body 1.

  Thereafter, as shown in FIG. 3C, the measuring finger 40 is inserted into the first ring-shaped locking portion 71 provided in the probe cover 7. The first ring-shaped locking portion 71 is inserted to the vicinity of the base of the measuring finger 40. As a result, the elongated bag-shaped main body portion 70 is vertically attached to the back portion of the measuring finger 40. At this time, the first strip 721 and the second strip 722 constituting the second ring-shaped locking portion 72 are in an open state without taking a ring shape.

  Then, as shown in FIG. 4D, the light emitting portion 31 of the probe 3 is positioned so that the light emitting portion 33 of the light emitting portion 31 is located at a predetermined position, that is, near the base of the nail of the measuring finger 40. . This positioning point is appropriately determined depending on the measurement method and the form of the light emission window 33. With this positioning, the short first strip 721, which is one strip constituting the second ring-shaped locking portion 72, is provided as shown in FIG. The adhesive layer 723 is attached to the measuring finger 40, and the probe cover 7 is temporarily fixed. By this temporary fixing, the position of the probe 3, that is, the position of the light emission window 33 is prevented from easily moving with respect to the measuring finger 40.

  Next, as shown in FIG. 5F, the bag-shaped main body 70 of the probe cover 7 is bent along the fingertip of the measuring finger 40. That is, the second portion 70-2 of the bag-shaped main body 70 is bent along the fingertip, and the third portion 70-3 is bent along the abdomen of the finger. Accordingly, as shown in FIG. 4, the light receiving portion 32 (light receiving window portion 34) is opposed to the light emitting portion 31 at the fingertip of the measuring finger 40 in a state where the flexible connecting portion 35 of the probe 3 is curved. The abdomen of the measuring finger 40 is indirectly in contact with each other via the probe cover 7. At this time, as shown in FIG. 5G, the fold 73 of the probe cover 7 is pressed with the thumb so that the light receiving part 32 does not move from the abdomen of the measuring finger 40 due to the restoring force of the flexible connecting part 35. To.

  Thereafter, as shown in FIG. 6 (h), the light receiving of the bag-shaped main body portion 70 is performed by the long second strip 722, which is the other strip constituting the second ring-shaped locking portion 72. The outer periphery of the measuring finger 40 is wrapped around the third portion 70-3 in which the portion 32 is accommodated, and further wrapped around the first portion 70-1 in which the light emitting portion 31 is accommodated. The adhesive layer 724 possessed by is attached to the surface in the vicinity of the first portion 70-1. By this pasting, the probe cover 7 having the probe 3 is attached to the measuring finger in a state where the light emitting unit 31 and the light receiving unit 32 are arranged at predetermined positions. In the present embodiment, the method of permanently fixing the second ring-shaped locking portion 72 around the measuring finger 40 is adopted as described above. Therefore, the finger size can be varied depending on the patient, and the adhesive layer 724 is used. The patient can appropriately adjust the tightening force on the finger by appropriately selecting the attachment position.

  Finally, as shown in FIG. 6I, the cable guide 8 is cut off at the aforementioned perforation 79 and slid along the probe cable 15, and the adhesive layer 81 provided in the cable guide 8 is provided. Then, the cable guide portion 8 is attached to the back of the hand. Thus, the mounting operation is completed. The substantial mounting operation in the mounting operation includes pressing the crease 73 with the thumb of the hand on the side where the measuring finger 40 is located, temporarily fixing the first strip 721 with the other hand, and the second strip 722. Therefore, it can be said that the patient can easily perform the wearing work by himself / herself.

(Specific Embodiment 2 of Probe Cover)
FIG. 11 is a perspective view showing another example of a specific embodiment of the probe cover 7. The basic configuration is the same as that of the first embodiment (example shown in FIG. 8) described above, and only the differences will be described mainly in order to avoid duplication of explanation.

  The difference in configuration is that an adhesive layer 740 is provided on the outer surface side of the central portion in the circumferential direction of the first ring-shaped locking portion 71, and the fold portion 73 of the bag-like main body portion 70 can be bonded to the adhesive layer 740. This is the point. The first ring-shaped locking portion 71 has a mark 741 at a predetermined position of the fold portion 73 so that the bonding position of the first ring-shaped locking portion 71 and the fold portion 73 becomes clear at a glance. Similar landmarks 742 are provided. By positioning the marks 741 and 742 so that they coincide with each other, the probe 3 is positioned with respect to the measuring finger 40. The adhesive layer 740 may be provided on the fold portion 73 side.

  Next, the procedure for mounting the probe cover 7 will be described with reference to FIG. First, as shown in FIG. 12A, the insertion end 3 </ b> S of the probe 3 is inserted from the probe insertion hole 701 of the probe cover 7, and the probe 3 is stored in the bag-like main body portion 70 of the probe cover 7. The process up to this point is the same as in the first embodiment, but subsequently, as shown in FIG. 4B, the fold part 73 is lifted to curve the bag-like main body part 70 into a U-shape (actually curved). The second portion 70-2) in which the flexible connecting portion 35 portion of the probe 3 is housed, and a mark 742 portion attached to a predetermined portion of the fold portion 73 is formed on the first ring-shaped locking portion 71. It is overlapped and adhered to the mark 741 provided on the adhesive layer 740. In this way, the light emitting part 31 (light emitting window part 33) and the light receiving part 32 (light receiving window part 34) of the probe 3 face each other by being curved in a U shape. The above-described work is preparation in advance when the probe cover 7 is attached to the measuring finger 40.

  Thereafter, as shown in FIG. 4C, the main body 1 of the pulse oximeter is attached to the arm 21 near the wrist using the wristband 2 provided in the main body 1, and subsequently, FIG. ), The measuring finger 40 is inserted into the first ring-shaped locking portion 71 provided in the probe cover 7. At this time, the measuring finger 40 is inserted until the fingertip of the measuring finger 40 abuts on the curved inner side of the second portion 70-2 of the bag-like main body 70. As a result, the first portion 70-1 in which the light emitting unit 31 is housed is at the base of the nail of the measuring finger 40, and the third portion 70-3 in which the light receiving unit 32 is housed is the abdomen of the measuring finger 40. Respectively.

  Thereafter, in the same manner as in the first embodiment, as shown in FIG. 5E, the short first strip 721, which is one strip constituting the second ring-shaped locking portion 72, is provided. The pressure-sensitive adhesive layer 723 is affixed to the measuring finger 40 to temporarily fix the probe cover 7, and as shown in FIG. In this state, the outer circumference of the measuring finger 40 is circulated by the long second strip 722, which is the other strip constituting the second ring-shaped locking portion 72, and held at the tip portion thereof. The probe 3 is fixed by sticking the adhesive layer 724 on the surface in the vicinity of the first portion 70-1 (see (g) in the figure). Thereafter, as shown in FIG. 6 (h), the cable guide portion 8 is cut and slid, and the cable guide portion 8 is attached to the back of the hand with the adhesive layer 81 provided in the cable guide portion 8. The installation work is completed.

  If the probe cover 7 according to this embodiment is used, light emission that affects the measurement of oxygen saturation or the like by performing the preliminary preparation shown in FIGS. 12A and 12B in advance in a hospital or the like. Since it is not necessary for the patient to position the unit 31 and the light receiving unit 32 carefully, for example, the patient receives a pulse oximeter and easily mounts the measurement at home or in a hospital room. In addition, by providing the marks 741 and 742, the preparatory work itself can be surely performed by the patient himself.

It is a block diagram which shows the electrical constitution of the pulse oximeter which is one of the suitable application objects of this invention. It is a perspective view which shows the mounting condition to the arm of a pulse oximeter. It is a perspective view which expands and shows the probe part of the pulse oximeter concerning this invention. It is a side view which shows the mounting condition to the measurement finger | toe of a probe part. It is a side view which shows the condition which fixed the probe part to the measurement finger using the medical tape. It is the perspective view which looked at the probe part from the back side (opposite side in FIG. 3). It is a perspective view which shows basic embodiment of the flow cover concerning this invention. It is a perspective view which shows 1st specific embodiment of the flow cover concerning this invention. It is a perspective view for demonstrating the state which accommodates a probe in the bag-shaped main-body part of a probe cover. It is explanatory drawing which shows the mounting procedure to the measurement finger | toe of the probe cover concerning 1st specific embodiment. It is a perspective view which shows 2nd specific embodiment of the flow cover concerning this invention. It is explanatory drawing which shows the mounting procedure to the measurement finger | toe of the probe cover concerning 2nd specific embodiment. It is a partially broken top view which shows the conventional probe (patent document 1).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pulse oximeter main-body part 15 Probe cable 3 Probe 31 Light-emitting part 32 Light-receiving part 320 Contact surface (concave surface)
321 Tapered surface (tapered surface processing)
313, 323 Guide protrusion 35 Flexible connecting portion 40 Measuring finger 7 Probe cover 70 Bag-shaped main body portion 701 Probe insertion hole 705 Positioning display portion 710 Locking portion 71 First ring-shaped locking portion 72 Second ring-shaped lock Stop portion 721 Short first strip 722 Long second strip 73 Wrinkle portion (tip portion of bag-shaped main body portion)
79 Perforation 8 Cable guide

Claims (12)

A probe cover that includes a probe of the oximeter and has a function of fixing the probe to a finger,
A flexible bag-like main body portion in which the probe is accommodated, and a locking portion that is provided integrally with the main body portion and fixes the main body portion to a finger;
A probe cover for an oximeter, wherein a part or all of the bag-like main body part is made of a translucent member.   The bag-shaped main body portion has a flat bag shape having a first portion in contact with the back of the finger, a second portion bent in contact with the fingertip portion, and a third portion in contact with the abdomen of the finger. The probe cover according to claim 1, wherein:   When the bag-like main body part is attached to the finger, the locking part is located on the base side of the finger and the finger is loosely fitted, and the bag-like main body part is located on the fingertip side. The probe cover according to claim 1, further comprising a second ring-shaped locking portion that closely contacts and fixes the fingertip portion to the fingertip portion.   The second ring-shaped locking portion is composed of a first strip and a second strip respectively extending from the bag-shaped main body, and these first strip and second strip are: The probe cover according to claim 3, further comprising an adhesive layer.   The probe cover according to claim 3, wherein the first ring-shaped locking portion and the tip portion of the bag-shaped main body portion can be fixed.   2. The probe cover according to claim 1, wherein a cable guide portion through which the probe cable of the oximeter is inserted is detachably attached to the bag-like main body portion.   The probe cover according to claim 1, wherein a positioning display part is provided on the surface of the bag-like main body part for containing the probe of the oximeter at a predetermined position. The bag-shaped main body portion has a flat bag shape having a first portion that contacts the back of the finger, a second portion that is bent in contact with the fingertip portion, and a third portion that contacts the abdomen of the finger,
The locking portion is ring-shaped in a direction perpendicular to the longitudinal direction of the bag-shaped main body portion with the finger base side of the first portion of the bag-shaped main body portion as a base when the bag-shaped main body portion is attached to the finger. A first ring-shaped locking portion extending to
The fingertip side of the first portion of the bag-shaped main body is used as a base and extends in a band shape in a direction perpendicular to the longitudinal direction of the bag-shaped main body, so that the third portion of the bag-shaped main body is wrapped from the outside. The probe cover according to claim 1, further comprising a second ring-shaped locking portion that tightly fixes the bag-shaped main body portion to the fingertip portion. An oximeter probe worn on a finger,
A light emitting part and a light receiving part which are arranged on the back side and the abdomen side of the finger, respectively, and at least one of which has a contact surface with a finger made of hard resin, and the light emitting part and the light receiving part are connected And a flexible connecting portion attached to the fingertip portion by bending or bending,
The light emitting portion, the light receiving portion, and the flexible connecting portion are integrally attached in a linear array to a terminal portion of a probe cable for electrical connection with the oximeter. Probe.   The probe according to claim 9, wherein a tip end portion of a probe integrally attached to a terminal portion of the probe cable is tapered.   The probe according to claim 9, wherein a surface of the light emitting unit and / or the light receiving unit facing the finger is a concave curved surface that matches a surface shape of the finger. A probe according to claim 9;
The probe cover includes a flexible bag-shaped main body portion in which the probe is accommodated, and a locking portion provided integrally with the main body portion, and a locking portion for fixing the main body portion to a finger.
The bag-like main body portion of the probe cover is characterized in that at least the light-transmitting surface of the light-emitting portion and the incident surface of the light-receiving portion are present at least when the probe is stored. Covered probe for oximeter.

Images