JP2008000557A - Medical infusion tube illuminating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical infusion tube illuminating device, using a light source having high luminance and protecting an operator from danger even during operation in the dark with the pupils opened. <P>SOLUTION: This medical infusion tube illuminating device includes: an infusion tube holder 7 formed of a pair of holding pieces 5, 6 which hold an infusion tube 2, and confront each other orthogonal to the axis 3 of the infusion tube 2, and to which elastic force is applied in the mutual mating direction; a light emitting body 11 provided on one holding piece 6 and radiates light beams toward the other holding piece 5 with the normals of the opposite surfaces 5a, 6a of the confronting holding pieces 5, 6 as the optical axis 10 and with the normals substantially orthogonal to the axis 3 of the infusion tube 2; a spectral body 14 provided in front of the light emitting body 11 in the same holding piece 6 as the light emitting body 11 to make the central part 12 where the optical axis 10 of the light emitting body 11 straightness and make the outer peripheral part scattering; a polarizing surface 17 provided on the holding piece 5 in the light radiating direction of the light emitting body 11 to cause irregular reflection of the beams passed through the straightness part of the spectral body 14; and a power supply for lighting the light emitting body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drip tube illuminating device in a medical drip device that requires a highly reliable operation and infuses a pharmaceutical product into a vein.

Technical background

  An infusion device in the medical field is an important medical instrument that must be used properly by a skilled nurse under proper settings regardless of the frequency of use. is there.

  As described above, infusion devices that are frequently used are provided in large quantities and are easily used. Therefore, it is desirable that the operation procedure must be simple and not reused.

  In view of the above, many settings have been provided for the setting of quantitative infusion of medicinal solutions by conventional infusion devices by visual observation.

  Patent Document 1 discloses an apparatus that electronically and automatically sets a fixed infusion of a chemical solution, and irradiates light from the side of a drip tube in order to measure a drop interval of a drip drug droplet. Is disclosed in FIG.

  Japanese Patent Application Laid-Open No. H10-228561 discloses a technique in which a light beam is irradiated from below a drip tube in order to adjust a drop interval of a drip medicine droplet at night.

  Patent Document 3 discloses a diagram in which a light beam is irradiated from the lower side of an infusion tube in order to adjust the drop interval of the infusion medicine droplets at night.

  JP 2002-191692 A   JP 2002-320672 A   Japanese Patent Laid-Open No. 2003-310753

  However, according to Patent Document 1, the measuring device becomes complicated and expensive, and it takes time to set the measuring device to the infusion tube, or a nurse who installs the infusion device and sets it is required. There are problems such as incomplete disinfection, incomplete disinfection of hands that perform setting work by touching the measuring device.

  According to Patent Document 2, since the light beam is irradiated from below along the axis of the drip tube, the portion where the drug solution grows into the drug droplet cannot be properly illuminated, and the drip tube and the drug solution are transparent. Therefore, most of the irradiated light passes through, the utilization rate of the light emitted by the light emitter is low, it is difficult to illuminate for a long time with the charging power from the dry battery or secondary battery, and a power supply means must be prepared separately. There is a problem such as must.

  According to Patent Document 3, from the side perpendicular to the axis of the drip tube, the light of the light emitter irradiates the surface of the liquid that accumulates at the lower end of the drip tube. In addition, since the drip tube and the chemical solution are transparent, most of the irradiated light passes through, the utilization rate of the irradiated light is low, and it can be illuminated for a long time with the charging power from the dry battery or secondary battery. There is a problem that power supply means must be prepared separately.

  On the other hand, the environment that requires infusion at night is a dark room with almost no lighting, such as a hospital room at the time of extinction, and the pupil of the eye of the nurse who is setting the infusion device is maximally open .

  In such an environment, conventionally, a flashlight was used to visually confirm the number of drops of the drops on the drip device, and the elapsed time was measured by visually observing the wristwatch so that the number of drops per required time was the required number. It is adjusted to.

  However, recent light sources for pen-type flashlights often use high-intensity light-emitting diodes, and the characteristics of these high-intensity light-emitting diodes are high in the beam characteristics (high density) of radiation and with the pupil fully open. Irradiating the eyes can damage the retina.

  It is conceivable that high-intensity light-emitting diodes are also used for the light sources of Patent Documents 2 and 3, and in that case, the operator's risk is not overcome.

  The high-intensity light emitting diode emits a beam having a high light density, in other words, a high light density per unit area and a high energy density.

  However, since the efficiency of the radiated light per driving power is high, it is possible to emit a large amount of light with very little power, and it is suitable for a light source that illuminates for a long time with charging power from a battery or a secondary battery.

  An object of the present invention is to provide an illuminating device for a drip tube that makes it possible to use a light source with high luminous efficiency and does not pose a danger to the operator even when the pupil is open during work. .

  According to the present invention, the above problem is solved as follows.

(1) A pair of infusion drugs that are infused in a fixed amount per time required, and that are opposed to each other perpendicular to the axis of the infusion cylinder, and that are provided with a pair of elastic forces facing each other. The drip tube attachment body composed of the gripping pieces and one of the holding pieces in the drip tube attachment body are substantially matched with the normals of the opposing surfaces of the gripping pieces facing each other in a pair. Is an optical axis, which is substantially orthogonal to the axis of the drip tube, emits light toward the opposite surface of the other gripping piece, and forward of the light emitter projecting direction in the same gripping piece as the light emitter The light transmitting body is provided with a light transmitting body having a light transmitting property at a central portion through which the optical axis of the light emitting body passes straight and a light transmitting property at the outer peripheral portion from the central portion. It is provided on the other gripping piece that faces the optical axis of the light emitter in the gripping piece. In interlinking gripping piece facing surface emitters is projected light, and the polarization plane of diffuse reflection of light rays having passed through the straightness center of splitters, by providing a power source to light the light emitter.

(2) In the above item (1), the drip tube adhesive is molded from a highly reflective synthetic resin material.

(3) In the above item (1) or (2), the synthetic resin material is antibacterial.

(4) In any one of the above items (1) to (3), the light emitter is a light emitting diode.

(5) In any one of the above items (1) to (4), the spectroscopic body is a cylindrical body made of a transparent synthetic resin having a straight light transmitting portion and a scattering light transmitting portion at one end in the axial direction. .

(6) In any one of the above items (1) to (5), the deflecting surface has a shape corresponding to the projected shape of the straight light transmitting portion of the spectral body.

(7) In any one of the above items (1) to (6), the deflection surface is on the entire inner surface of the gripping piece provided with the deflection surface.

(8) In any one of the above items (1) to (7), the inner surface of the gripping piece provided with the light emitter has a part or the entire surface as a light diffusely reflective polarizing surface.

(9) In any one of the above items (1) to (8), the power source controls the light-emitting means at a time interval corresponding to the number of drug infusions per hour corresponding to a certain amount of the injectable medicine per time required. Drives blinking.

(10) In any one of the above items (1) to (9), a sign with a symbol, shape or color is determined according to the blinking time interval of the light emitting means, and the sign is attached to the drip tube attachment.

(11) In the above item (10), the color marker is the luminescent color of the illuminant.

(12) In any one of the above items (1) to (11), the power source includes an electric double layer capacitor.

  According to the present invention, the following effects can be obtained.

(A) According to the invention of claim 1, the radiation beam of the high-intensity beam-type illuminant is radiated from the side of the tube perpendicular to the axis of the drip tube, and irregularly from both sides of the tube wall of the drip tube. In order to illuminate the drip tube in the form of scattered scattered light, even when the pupil of an infusion treatment nurse working in the dark is open, the nurse may be exposed to high-intensity light that damages the retina of the eye. There is no.

(B) According to the invention of claim 2, by making the gripping pieces facing each other a synthetic tree material with high reflectivity, the number of light rays that illuminate the inside of the drip tube increases, and a light-emitting body with a small amount of light is used. Increase the power supply maintenance time to enable long-time lighting.

(C) According to the invention of claim 3, since it is used repeatedly, cleanliness can be maintained.

(D) According to the invention of claim 4, although it has a high beam property, a light emitter having a high light emission rate can be formed, and high luminance can be obtained with low power. Therefore, power consumption is reduced for brightness. Thus, it is possible to provide a drip tube illumination device that can illuminate for a long time.

(E) According to the invention of claim 5, the bundle of light beams having a high beam emitted from the light emitter can be easily separated into a central portion and a peripheral portion.

(F) According to the invention of claim 6, only the light beam at the central portion that travels straight through the spectroscopic body is scattered in a random direction, and the other portions are reflected in the direction in which the gripping pieces face each other. The amount of light can be increased.

(G) According to the invention of claim 7, the light beam radiated from the other gripping piece side can be scattered regardless of the size of the central portion that goes straight through the spectroscopic body.

(H) According to the invention of claim 8, the opposing surfaces of the gripping pieces can be made light scattering so that light rays can be scattered around the periphery as much as possible.

(I) According to the invention of claim 9, the drip treatment nurse working in the dark can set an appropriate drip time interval without looking at the clock.

(J) According to the invention of claim 10, since the marker corresponding to the drip time interval is attached to the drip tube illumination device, there is no fear of wrong setting.

(K) According to the invention of claim 11, since the sign corresponding to the drip time interval is recognized by the color of the light emitter for illumination even in the dark room to be treated, it is confirmed at the stage of preparation and the stage of treatment. be able to.

(L) According to the invention of claim 12, since rapid charging can be performed and the number of times of repeated charging can be increased, the power switch is not required, the drip tube illumination device can be provided at low cost, and the components The failure rate can be reduced by reducing the number of points.

  Hereinafter, the present invention will be described with reference to the accompanying drawings.

  1 to 6 show an embodiment of a medical drip tube illumination device according to the present invention.

  FIG. 1 shows a perspective view of a drip tube illumination device (1) according to the present invention attached to a drip tube (2), and FIG. 2 is a cross-sectional view taken along line II-II in FIG.

  As shown in FIG. 1, the drip illuminator (1) has an axis (3) in a drip tube (2) for injecting a medicinal product for injection at a constant amount per required time (a drug drop falls at the center line of the cylindrical axis). It is used by being attached to substantially the center of the body (2a) of the drip tube (2) perpendicularly to the path).

  The drip illuminator (1) is opposed to the axis (3) of the drip cylinder (2) at right angles to each other, and in a direction facing each other, a pair of elastic force is applied by a torsion spring (4). An infusion tube attachment body (7) comprising gripping pieces (5) and (6) is provided.

  The pair of gripping pieces (5) and (6) in the drip tube attachment (7) has a hinge (8) at the crossing portion, and the gripping pieces (5) and (6) facing each other are closely spaced from each other. The torsion spring (4) is provided with an elastic force in a direction in which the grip pieces (5) and (6) are close to each other.

  The drip tube attachment body (7), one gripping piece (5), the outer side of the hinge (8) slightly protrudes to form a gripping piece (9), and the gripping piece (9) and the other gripping piece By gripping (6), the gripping pieces (5) and (6) facing each other can be opened and closed and attached to the body (2a) of the drip tube (2).

  In addition, one gripping piece (6) in the drip tube attachment (7) has a normal line between the opposing faces (5a) and (6a) of the opposing gripping pieces (5) and (6) facing each other. Are substantially coincident with each other and the normal line is the optical axis (10), which is substantially perpendicular to the axis (3) of the drip tube (2), and on the opposite surface (6a) of the other gripping piece (5). There is provided a light emitter (11) that emits light rays.

  In the same gripping piece (6) as the illuminant (11), the translucent property of the central part (12) through which the optical axis (10) of the illuminant (11) passes in front of the light emitter (11) light projecting direction There is provided a spectroscopic body (14) that is straight and has a translucency in the outer peripheral part (13) from the central part (12) and scattering.

  FIG. 3 is an enlarged view showing only the spectroscopic body (14). FIG. 3A is a front view showing the side opposite to the light emitting body (11) and the side close to the body (2a) of the drip tube (2). , (B) is a right side view of the center longitudinal section of the spectroscopic body (14).

  As shown in the figure, the spectroscopic body (14) is entirely filled with a transparent synthetic resin, and a circular light rectilinear window (15) is provided in the front center part (12) for flattening the surface and for straightening the passing light. ) Is provided, and the front surface of the light straight window (15) has a triangular shape on the front surface, and the light passing therethrough is bent. A light scattering window (16) that emits light rays of the light emitter (11) with an incident angle exceeding the critical angle with respect to the thickness direction of the body (2a) of (2) is provided.

  In addition, since the part of the light straight window (15) does not have any influence on the light beam passing therethrough, the transparent synthetic resin in the part that passes through the light straight window (15) is unnecessary, and thus the spectral body (14 ) Can be replaced with a hollow cylindrical part.

  The other gripping piece (5) facing the gripping piece (6) provided with the light emitter (11) has a gripping piece (5) perpendicular to the optical axis (8) of the light emitter (11). 6) Polarized light that irregularly reflects the light beam emitted from the light emitter (11) and passed through the light straight window (15) of the straight traveling center portion (12) of the spectroscopic body (14) on the facing surface (5a). A surface (17) is provided, and any of the light rays irregularly reflected by the polarization plane (17) is incident at an incident angle exceeding the critical angle with respect to the thickness direction of the body (2a) of the drip tube (2). To do.

  FIG. 4 shows a gripping piece (5) having a polarization plane (17) as viewed in section along the line IV-IV shown in FIG. 2, wherein (a) shows the facing surface (5a) on the front, b) shows the right side view of the central longitudinal section in (a).

  As shown in FIG. 4 (a), the plane of polarization (17) has a circular shape in accordance with the distribution of light rays passing through the light straight window (15), but may be larger than the distribution shape of the light rays passing through. Moreover, all the surfaces of the opposing surface (5a) of the gripping piece (5) may be used. Moreover, the diffuse reflection surface which reflects the light diffusely reflected from the polarization plane (17) may be provided in the whole opposing surface (6a) of the holding piece (6) which opposes it.

  The illuminator (11) bulges outside the gripping piece (6) and is attached to an electronic circuit board (19) built in the bulged portion (18).

  The electronic circuit board (19) is provided with a power source (20) for lighting the light emitter (11). The power source (20) may be any of a primary battery, a secondary battery, and a large capacity capacitor. In the embodiment, a quick charge type DC power source including an electric double layer capacitor (21) is employed.

  FIG. 5 shows the facing surface (6a) of the gripping piece (6) as viewed in section along the line V-V shown in FIG. 2. The electrical circuit board (19) has a + -charging connection terminal ( 22) (23) is provided.

  FIG. 6 is a time chart showing the operation of the power supply (20) in the electric circuit board (19).

  The power source (20) is set to be turned on / off when the electric double layer capacitor (21) is charged to a predetermined voltage.

  In the on / off operation, the lighting time (T1) of the light emitter (11) is long, the turn-off time (T2) is extremely short, and the time interval of the turn-off time (T2) is the drop time interval of the drop (24), that is, It is determined to be an infusion time interval (T3).

  At this time, the extinguishing time (T2) is set slightly longer than the afterimage time of the eyes, and when the blinking of the illuminant (11) is observed visually in the central visual field of the eye, flickering at the time of extinction can be calculated. Is appropriate.

  If the turn-off time (T2) is too long, the measurement error of the drip time interval (T3) increases, which is not preferable.

  This infusion time interval (T3) is fixed to a specific one, and depending on each infusion time interval (T3), a symbol such as a model number, or a shape such as a circle, square, triangle, or red, It is advisable to define a sign such as blue or green and attach the sign to any part of the drip tube attachment (7) by printing or sticking. At that time, when the drop time interval (T3) is made to correspond to the hue, the color of the synthetic resin material forming the drip tube attachment (7) can be made to correspond to it. The synthetic resin material is preferably antibacterial.

  Moreover, since a high-intensity light emitting diode is used for the light emitting means (11), the light emission color of the light emitting diode can be made to correspond to the drip time interval (T3).

FIG. 7 shows a perspective view of the charging device (25) of the drip tube illumination device (1).
The charging device (25) has a column (26) having the same diameter as that of the body (2a) of the drip tube (2) at the center, and a + -charging electrode (27) on the side surface of the column (26). A projection (29) in which (28) is embedded is provided.

  An appropriate number of charging devices (25) are usually prepared in a nurse's center (nurse center) of a hospital, and are connected to a commercial power supply of 100 volts to supply charging power.

  When the drip tube illumination device (1) is attached to the support (26) of the charging device (25) immediately before use, as shown in phantom lines, at the root of the attachment piece (5) (6). The connection terminals (22) and (23) connected to the electronic circuit board (19) are in contact with the charging electrodes (27) and (28) embedded in the protrusions (29), so that the drip tube illumination device (1) and the charging device (25) is electrically coupled.

  Thereafter, when the switch (30) at the upper end of the column (26) is pressed, the electric double layer capacitor (21) is rapidly charged in a short time from a required charging circuit built in the charging device (25).

  This charging operation may be either a fixed-time timer circuit with a fixed time or an automatic charging circuit that detects a charging voltage.

  In any case, the charging work time is completed in a short time of several tens of seconds to several minutes, and the light emitting diode (11) that is the light emitter (11) is turned on for about 30 minutes to 1 hour with the electric power charged in this time. Can do.

  When using the drip tube illumination device (1) according to the present invention described above, the drip tube (2) is attached to the drip tube (2) as shown in FIG.

  The light emitter (11) in the drip tube illuminating device (1) performs a blinking operation from the time when power is received by the charging device (25) at the time interval shown in FIG.

  A switch that starts blinking may be provided, but the number of parts increases, the price increases, and the failure rate also increases, so there is no need to provide it and the time required for charging is fast. The battery is charged immediately before, and the charging power is used up and discharged.

  Thus, in the drip tube illumination device (1), the light emitter (11) emits light before it is attached to the drip tube (2).

  However, even if the drip tube (2) is not sandwiched, the scattering deflecting surface (17) faces the front of the light emitter (11) and passes through the center of the light emitter (11). The high-intensity beam of light is randomly dispersed in all directions on the polarization plane (17), and is not a concentrated light but becomes soft light and illuminates the surroundings brightly.

  The light rays in the peripheral part emitted from the light emitter (11) are randomly dispersed in all directions by the light scattering window (16) of the spectroscopic body (14) and become soft light to illuminate the periphery.

  The drip tube illumination device (1) shines brightly even in the state of carrying, and uses the light to illuminate the surroundings of the dark drip tube (2) at the time of drip work at night, so that the drip tube (2) The drip tube illumination device (1) is securely attached to an appropriate position.

  When the drip tube illumination device (1) is attached to the drip tube (2), a part of the light beam scattered by the scattering window (16) and the polarization plane (17) is transferred to the light scattering window (16) and the polarization plane (17). Enter into the thickness of the body (2a) of the instilled barrel (2) with an incident angle exceeding the critical angle, and go out between the thicknesses of the body (2a) due to the thickness of the transparent body. It repeats without reflection.

  The drip tube (2) uses a synthetic resin that is slightly soft and has improved safety by using a synthetic resin material that is hard to break finely when broken. Such a synthetic resin material has a slight transparency. Many that are milky white are used.

  When a light ray enters between the thicknesses of the body (2a) of the drip tube (2) exhibiting a slightly milky white color, the entire body (2a) appears to shine brightly.

  Thus, the radiation beam having a strong beam property emitted from the light emitter (11) is dispersed in the random direction in the light scattering window (16) and the polarization plane (17) of the spectroscopic body (14), and the drip tube. In the body (2a) of (2), the body (2a) of the drip tube (2) is made to shine by being reflected by a component that is slightly milky white.

  Accordingly, the liquid drop (24) at the upper end of the drip tube (2) is enlarged to clearly illuminate the dropping state, and the liquid level (31) of the liquid reservoir at the lower end of the drip tube (2) is viewed from above. Illumination can be performed to clearly observe the drip situation of the chemical solution falling in the drip tube (2).

  At this time, the illuminant (11) performs a blinking operation. By operating an infusion adjusting means (not shown) so as to match the rhythm of the blinking operation with the rhythm of the drop interval of the chemical solution, The drop time interval of the medicine droplet (24) in the tube (2) can be matched with the infusion time interval (T3) set in advance in the power source (20) of the drip tube illumination device (1).

  Since the drip illumination device (1) is used by being attached to the drip tube (2) while the illuminator (11) is lit, it is possible to visually confirm that the drip chemical has run out and the drip is completed. Patients who receive infusions can be treated with peace of mind.

  1 is a perspective view showing an embodiment of an infusion tube illumination device according to the present invention in a state of being attached to an infusion tube.   It is the II-II line transverse cross section in FIG.   It is an enlarged view which shows only the spectroscopic material shown in FIG. 1, (a) is a front view, (b) is a center longitudinal section right view.   (A) is the IV-IV sectional view of the holding piece in FIG. 2, (b) is the center longitudinal cross-section right view in (a).   It is the VV sectional view taken on the line of the holding piece shown in FIG. It is a time chart which shows operation | movement of the power supply (20) which drives a light-emitting body.   It is a perspective view which shows an example of the charging device which charges the power supply of the drip tube illumination apparatus which concerns on this invention.

Explanation of symbols

(1) Drip tube illumination device (2) Drip tube (2a) Body (3) Axis (4) Torsion spring (5) (6) Grip piece (5a) (6a) Opposing surface (7) Drip tube attachment ( 8) Hinge (9) Grinder (10) Axis (11) Luminescent body (12) Central part (13) Outer peripheral part (14) Spectral body (15) Light straight window (16) Light scattering window (17) Polarization Surface (18) bulging portion (19) electronic circuit board (20) power source (21) electric double layer capacitor (22) (23) connection terminal (24) drug drop (25) charging device (26) prop (27) ( 28) Charging electrode (29) Protrusion (30) Switch (T1) Lighting time (T2) Lighting time (T3) Infusion time interval

Claims (12)

From a pair of gripping pieces attached to an infusion cylinder that infuses a medicinal product for injection at a constant amount per time, facing each other perpendicular to the axis of the infusion cylinder, and provided with elastic force in a direction facing each other. A drip tube anchored body,
Provided on one gripping piece of the drip tube attachment body, the normal lines of the opposing surfaces of the gripping pieces facing each other in a pair are substantially matched, and the normal line is used as the optical axis, which is the axis of the drip tube. And a light emitter that emits light toward the opposite surface of the other gripping piece,
Located in front of the light emitter projecting direction on the same gripping piece as the light emitter, the translucency of the central part through which the optical axis of the light emitter passes is straight, and the translucency of the outer peripheral part is scattered from the central part Spectroscopic material,
Provided on the other gripping piece opposite to the gripping piece provided with the illuminant, the illuminant projects light on the gripping piece facing surface perpendicular to the optical axis of the illuminator, and the straightness center of the spectral body A polarization plane that irregularly reflects the light beam that has passed through the section;
A power source for lighting the light emitter;
A medical drip tube illuminating device comprising:   The medical drip tube illumination device according to claim 1, wherein the drip tube attachment is molded of a highly reflective synthetic resin material.   The medical drip tube illumination device according to claim 2, wherein the synthetic resin material is antibacterial.   The light-emitting body is a light-emitting diode, The medical drip tube illumination device according to any one of claims 1 to 3.   The medical drip tube illuminating device according to any one of claims 1 to 4, wherein the spectroscopic body is a transparent synthetic resin cylindrical body having a straight light transmitting portion and a scattering light transmitting portion at one end in the axial direction.   The medical drip tube illuminating device according to any one of claims 1 to 5, wherein the deflecting surface has a shape corresponding to a projected shape of the straight light transmitting portion of the spectroscopic body.   The medical drip tube illuminating device according to any one of claims 1 to 6, wherein the deflection surface is on the entire inner surface of the gripping piece provided with the deflection surface.   The medical drip tube illuminating device according to any one of claims 1 to 7, wherein an inner surface of a gripping piece including a light emitter has a part or the entire surface as a light diffusely reflective polarizing surface.   The medical drip tube according to any one of claims 1 to 8, wherein the power source drives the light-emitting means to blink at a time interval corresponding to the number of drug drops per hour corresponding to a certain amount of the injectable pharmaceutical product per required time. Lighting device.   The medical drip tube illuminating device according to claim 9, wherein a sign with a symbol, shape or color is determined according to a blinking time interval of the light emitting means, and the mark is attached to the drip tube attachment.   The medical drip tube illuminating device according to claim 10, wherein the color marker is a luminescent color of the illuminant.   The medical drip tube illuminating device according to any one of claims 1 to 11, wherein the power source is a DC power source that can be rapidly charged and includes an electric double layer capacitor.

Images