JP4229443B2 - Medical device with lighting device - Google Patents

Description

  The present invention relates to a medical instrument used for medical treatment or dentistry.

  2. Description of the Related Art Conventionally, some medical instruments such as tweezers, scalpels, knives, scissors, and saws used in medical or dentistry are provided with illumination means for illuminating a treatment site or a processed portion.

For example, as shown in FIG. 12, a semiconductor laser oscillator 52 is provided between the two hands 51a and 51b of the tweezers 50, and the oscillation laser is guided by the optical fiber 53 to illuminate the tip portions 54a and 54b of the tweezers 50. (For example, refer to Patent Document 1).
JP-A-5-317330 (2nd page, FIG. 1)

  However, the medical instrument provided with the conventional illumination means described above uses a laser as a light source, so the cost of the light source itself is high, and the oscillator for oscillating the laser is also complicated because of the circuit complexity. High factor. Therefore, the ratio of the cost of the illumination means to the cost of the instrument becomes large.

  In addition, since a power source for driving the laser oscillator is externally attached, a cord for supplying power from the power source to the oscillator is necessary, and the cord drawn from the device hinders the freedom of operation of the device. , It can also interfere with the treatment.

  In addition, even if a laser light source, an oscillator, and a power source are externally attached and the oscillation laser is guided to the instrument by an optical fiber, the degree of freedom of operation of the instrument may be hindered by the optical fiber drawn out from the instrument as described above. Sex still remains.

  Therefore, the present invention was devised in view of the above problems, and the light source (LED), the power source (battery) and the switch constituting the lighting device are integrated and detachably attached to the appliance to achieve wireless operation. The present invention provides a low-cost medical instrument with a lighting device having good performance.

In order to solve the above-described problems, the invention described in claim 1 of the present invention is a medical instrument such as a hemostatic forceps, scissors, tweezers, etc. used for medical treatment or dentistry in medical treatment or dentistry. A lighting device integrated with a switch is detachably attached in the vicinity of the fulcrum position between the gripping part of the hemostatic forceps and scissors and the tip part, or in the vicinity of the force point position of the tweezers , and the light source changes its illumination direction to the tip of the medical instrument. It is characterized by being attached in a state of being directed in the direction of the part .

  The invention described in claim 2 of the present invention is characterized in that, in claim 1, the illumination device includes a mechanism capable of adjusting an illumination direction.

  Further, the invention described in claim 3 of the present invention is characterized in that, in any one of claims 1 and 2, the illumination device includes a mechanism capable of adjusting an illumination range.

According to a fourth aspect of the present invention, in any one of the first to third aspects, an optical sensor mechanism is provided between two grip portions of the medical instrument , and the illumination is performed. The apparatus includes a signal processing circuit, and when the optical sensor mechanism detects proximity, the detection signal is sent to the signal processing circuit, and the light source is turned on in response to a processing result of the signal processing circuit It is.

  By integrating the light source (LED), power source (battery), and switch constituting the lighting device into the device, it is possible to achieve wireless operation and to realize a low-cost medical device with a lighting device with good operability. did it.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 11 (the same parts are given the same reference numerals). The embodiments described below are preferable specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention particularly limits the present invention in the following description. Unless stated to the effect, the present invention is not limited to these embodiments.

  1 to 3 schematically show an embodiment of a medical instrument with an illumination device of the present invention. FIG. 1 shows a state in which the illumination device is attached to a hemostatic forceps, and FIG. 2 shows an illumination device attached to a scissor. FIG. 3 shows a state in which the lighting device is attached to the tweezers.

  This embodiment will be described below. FIGS. 1 to 3 show a state in which the same lighting device is attached to different medical instruments. Therefore, the example in which the illumination device is attached to the hemostatic forceps shown in FIG. 1 will be described in detail as a representative example, and description of FIGS. 2 and 3 will be omitted.

  First, the illuminating device 1 includes an LED 2 serving as a light source, a battery 3 serving as a power source, and a switch 4 that controls blinking of the LED 2 as main components, and these components are integrated to form the illuminating device 1. In addition, although the LED drive circuit for lighting LED, the detection circuit for recognizing ON / OFF of a switch, etc. are built in the illuminating device 1, they are abbreviate | omitted in FIGS. 1-3. The lighting device 1 is attached to a hemostatic forceps 5 used for treatment or surgery in a state where the illumination direction of the LED 2 is directed toward the distal end portion of the hemostatic forceps 5.

  Next, a procedure for operating the hemostatic forceps 5 with the illumination device having the above-described configuration will be described. First, the switch 4 of the illumination device 1 is operated to turn on the LED 2 to illuminate the distal end portion of the hemostatic forceps 5. In this state, the tip of the hemostatic forceps 5 is gradually inserted into the deep part of the body from the incised portion of the patient's body, depending on the illumination of the LED, and the target tissue illuminated by the LED light is accurately grasped. Hold. Since the light emitted from the LED has a characteristic of illuminating a relatively wide area, the treatment in the vicinity of the tissue grasped and held by the hemostatic forceps 5 is continued, and the switch 4 is operated after taking out from the incision portion after the operation. The LED is turned off to complete the series of operations.

  4 to 6 show an attachment method in which an illuminating device in which an LED serving as a light source, a battery serving as a power source, and a switch for controlling blinking of the LED are integrated is detachably attached to a medical instrument. The attachment method shown in FIG. 4 is a method applicable when the medical instrument 10 is made of a magnetic material, and the illumination device 1 is attached to the medical instrument 10 via the permanent magnet 8. . In the attachment method shown in FIG. 5, a clip 9 having an opening is integrally provided in the lighting device 1, and the medical instrument 10 is inserted and fixed through the opening of the clip 9. In the mounting method shown in FIG. 6, a spring clip 12 having an opening and a shaft 11 is integrally provided on the lighting device 1 with a spring member, and the opening is widened by applying a force to the shaft 11 of the spring clip 12. The medical instrument 10 is sandwiched and fixed by a spring load when the instrument 10 is inserted and the shaft 11 is returned to its original position.

  Next, an illumination device that can adjust the illumination direction of the LED and an illumination device that can adjust the illumination range will be described. First, the illumination device that can adjust the illumination direction of the LED is shown in FIGS. 7 and 8 are cross-sectional views showing a state in which an illumination device capable of adjusting the illumination direction of the LED is attached to a medical instrument, and FIG. 9 adjusts the illumination direction of the LED by moving the illumination device of FIGS. It is explanatory drawing which shows a mode.

  In FIG. 7, the lighting device 1 and the spring support plate 13 are rotatably supported via a bearing 14, and a spring plate 15 is disposed between the spring support plate 13 and the clip 9 having an opening. A screw 16 that is fixed to one side of the clip 9 and protrudes outward passes through the spring plate 15 and the spring support plate 13 and is screwed into a screw hole 17 provided in the lighting device 1 at the tip. The medical instrument 10 is inserted and fixed through the opening of the clip 9.

  When the lighting device 1 is rotated by the spring support plate 13 until a load is applied to the spring plate 15, the clip 9 and the lighting device 1 are fixed by the repulsive force of the spring plate 15. At that time, the illumination direction of the LED 2 can be changed by finely adjusting the rotation of the illumination device 1 with a force larger than the repulsive force of the spring plate 15.

  In FIG. 7, the bearing 14 is in direct contact with the lighting device 1, but the lighting device and the portion in contact with the bearing can be individually created and integrated.

  In FIG. 8, the lighting device 1 to which the spring plate 18 having the convex portion is attached and the clip support plate 19 integrated with the clip 9 by providing a concave groove at a position corresponding to the convex portion of the spring plate 18. Are supported rotatably via a spring plate 18. Then, a screw 16 fixed to one side portion of the clip 9 and projecting outward passes through the clip support plate 19 and the spring plate 18 and is screwed into a screw hole 17 provided in the lighting device 1 at the tip portion. The medical instrument 10 is inserted and fixed through the opening of the clip 9.

  In the medical device with an illuminating device having the above structure, when the illuminating device 1 is rotated until a load is applied to the concave portion of the spring plate 18, the clip 9 and the illuminating device 1 are fixed by the repulsive force of the concave portion of the spring plate 18. At that time, the illumination direction of the LED 2 can be changed by finely adjusting the rotation of the illumination device 1 with a force larger than the repulsive force of the convex portion of the spring plate 18.

  FIG. 9 shows how the LED illumination direction is actually adjusted in the illumination apparatus shown in FIGS. 7 and 8 that can adjust the LED illumination direction.

  On the other hand, the illuminating device which can adjust the illumination range of LED is typically shown in FIG. A convex lens 21 fixed to the lens holder 20 is disposed in the radiation direction of the LED 2, and the distance between the LED 2 and the convex lens 21 is adjusted by sliding the lens holder 20 so that the illumination range can be controlled. In this case, since the irradiation surface becomes dark as the illumination range becomes wider, the distance between the LED 2 and the convex lens 21 is set in consideration of the illumination range and the brightness of the irradiation surface.

  The medical instrument with a lighting device shown in FIG. 11 is a device in which a timer circuit and a signal processing circuit are provided in the lighting device described above, and a light sensor is attached separately from the lighting device. Specifically, the hemostatic forceps 5 includes a lighting device 1 in which an LED 2 serving as a light source, a battery 3 serving as a power source, a switch 4 that controls blinking of the LED 2, a timer 22, and a signal processing circuit (not shown) are integrated. 5, a reflective sensor 24 and a reflector 25 are attached in the vicinity of each of the two gripping portions 23 to constitute an optical sensor. The configuration and operation principle of the optical sensor is that a light emitting element 26 such as an LED and a light receiving element 27 such as a phototransistor are built in the reflective sensor 24, and the light emitted from the light emitting element 26 is reflected by the reflector 25. The intensity of the reflected light is sensed by the light receiving element 27 and the signal is transmitted to the signal processing circuit via the signal line 28.

  The operation procedure of the illuminated medical instrument having the above configuration will be described. First, there are two methods for blinking the LED. The first method is a method of operating the switch 4, and the second method is a method of automatically blinking by an optical sensor. Here, the second method will be described. First, when a doctor or a nurse picks up the forceps 5 and brings the two gripping portions 23 of the forceps 5 closer (the reflective sensor 24 and the reflector 25 are brought close to each other), the light is emitted from the light emitting element 26 and reflected by the reflector. The received light 27 is received by the light receiving element 27, a signal is sent to the signal processing circuit, the LED 2 is turned on in response to the processing result of the signal processing circuit, and the timer 22 is started.

  The timer 22 is set so as to sufficiently cover the time from when the forceps 5 grasps and holds the tissue until the operation is completed. After the operation is completed and the forceps are removed, the timer 22 When it finishes, the light turns off automatically. This prevents unnecessary power consumption due to forgetting to turn off the LED. Even before the set time of the timer ends, when the operation is completed and the two gripping portions 23 of the forceps 5 are moved away (the distance between the reflective sensor 24 and the reflector 25 is increased), the light emitting element 26 emits the light. Since the received light is not reflected by the reflecting object, the light receiving element 27 does not receive the light, and the signal is not sent to the signal processing circuit, so that the LED 2 is turned off.

  In addition, LED used for a light source does not necessarily need one light emission part, and may provide a some light emission part. In that case, all the light emitting units may emit the same type of light, or light emitting units that emit different types of light may be combined. When mixing light emitting units that emit different types of light, provide a circuit that can individually adjust the amount of emitted light for each type of light emitted by each light emitting unit, and adjust the balance of the amount of different types of light to mix. Thus, light having a desired color tone can be obtained.

  In that case, the color tone of the light emitted from the lighting device is optimally white light that is close to natural light and has good color rendering properties. In that case, all the light emitting units are configured to emit white light, or are different. In the case of a light emitting unit that emits different types of light, white light can be obtained by mixing different light. Of course, light other than white can be obtained in the same manner.

  Further, the light source is not limited to the LED, and other light emitting elements such as a light bulb and a small fluorescent lamp can be employed.

  Here, the effect of the present invention will be described. First, for the light source, the use of LEDs, which are significantly less expensive than lasers and other elements, contributes to lowering the cost of the lighting device, and the LED is simple in the driving method, so the circuit is also low in cost. it can. Further, by providing a plurality of light emitting portions having different light emission colors to the LED and mixing light emitted from the respective light emitting portions, illumination having a desired color tone can be obtained. Therefore, treatment under illumination close to natural light with good color rendering can be provided.

  In addition, with respect to the lighting device, it is possible to sterilize the appliance with the lighting device removed by making it detachable from the medical appliance, so that the stable quality of the lighting device can be maintained over a long period of time. it can. In addition, the built-in battery and LED drive circuit, etc. in the lighting device can function independently, so that the degree of freedom of operation is ensured and treatment is not hindered. Yes. Furthermore, since the surgical site can be illuminated at a position close to the surgical site, it is not necessary to increase the incision range, and the incision range can be kept to the minimum necessary for the surgical operation, thereby reducing the burden on the patient. be able to. It has excellent effects such as.

It is the schematic which shows the medical device with illumination concerning embodiment of this invention. Similarly, it is the schematic which shows the other medical instrument with illumination concerning embodiment of this invention. Similarly, it is the schematic which shows the other medical instrument with illumination concerning embodiment of this invention. It is a schematic sectional drawing which shows the attachment method to the medical instrument of an illuminating device in the medical instrument with illumination concerning embodiment of this invention. Similarly, in the medical instrument with illumination according to the embodiment of the present invention, it is a schematic cross-sectional view showing another method for attaching the illumination device to the medical instrument. Similarly, in the medical instrument with illumination according to the embodiment of the present invention, it is a schematic cross-sectional view showing another method for attaching the illumination device to the medical instrument. It is sectional drawing which shows the adjustment mechanism of an illumination direction in the medical device with illumination concerning embodiment of this invention. Similarly, it is sectional drawing which shows the other adjustment mechanism of an illumination direction in the medical device with illumination concerning embodiment of this invention. It is explanatory drawing which shows the state which adjusts the illumination direction of FIG.7 and FIG.8. It is sectional drawing which shows the adjustment mechanism of an illumination range in the medical device with illumination concerning embodiment of this invention. It is the schematic which shows the state which attached the optical sensor mechanism in the medical device with illumination concerning embodiment of this invention. It is a structural diagram which shows a prior art example.

Explanation of symbols

1 Lighting device 2 LED
DESCRIPTION OF SYMBOLS 3 Battery 4 Switch 5 Hemostatic forceps 6 Scissors 7 Tweezers 8 Permanent magnet 9 Clip 10 Medical instrument 11 Shaft 12 Spring clip 13 Spring support plate 14 Bearing 15 Spring plate 16 Screw 17 Screw hole 18 Spring plate 19 Clip support plate 20 Lens holder 21 Convex lens 22 Timer 23 Grasping part 24 Reflective sensor 25 Reflector 26 Light emitting element 27 Light receiving element 28 Signal line

Claims (4)

In medical instruments such as hemostats, scissors, and tweezers used for medical treatment or dentistry in medical treatment or dentistry, an illumination device that integrates at least a light source, a power source, and a switch is provided between the hemostatic forceps and scissors gripping part and the tip part A medical device with an illuminating device , wherein the medical device is detachably mounted near a fulcrum position or a force point position of tweezers, and the light source is mounted in a state in which the illumination direction is directed toward the distal end portion of the medical device.   The medical device with an illuminating device according to claim 1, wherein the illuminating device includes a mechanism capable of adjusting an illuminating direction.   The medical device with an illumination device according to claim 1, wherein the illumination device includes a mechanism capable of adjusting an illumination range. An optical sensor mechanism is provided between the two grips of the medical instrument, and the illumination device is provided with a signal processing circuit. When the optical sensor mechanism detects proximity, the detection signal is sent to the signal processing circuit. The medical instrument with an illuminating device according to claim 1, wherein the light source is turned on in response to a processing result of the signal processing circuit .

Images