JP2006230448A - Situation-sensitive suction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a situation-sensitive suction device capable of eliminating a foreign matter, such as phlegm or the like, efficiently. <P>SOLUTION: The situation-sensitive suction device comprises a catheter having a suction hole, a container connected to the catheter for storing sucked material, and a suction pump for sucking via the suction hole of the catheter. A tactile sensor is arranged on the front end of the catheter, and suction force from the suction hole of the catheter is controlled in response to an output of the tactile sensor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a situation sensitive aspirator.

  With the declining birthrate and aging population, the importance of home care support is increasing. Especially for families who are bedridden due to aging or serious illness at home, there are various difficulties regarding home care.

  One such difficulty is the suction problem. When a bedridden person is treated at home, it may be difficult to discharge wrinkles and other foreign substances into the mouth by himself. It's not just uncomfortable and painful, but in some cases it can cause breathing difficulties and die from suffocation, which can be very dangerous.

Therefore, these patients need to suck foreign objects with a suction device, but some simple medical suction devices that can be easily used at home are used. As such a suction device, a small portable suction device (“CARRY”
CR1400 "," CARRY CD1400 "and" MV-20 "(all trade names)). Such a small portable suction device incorporates a diaphragm-type or rotary-type suction pump as a decompressor, and has a structure for sucking foreign matter by suction of this suction pump.

  However, such a conventional suction device has a structure in which suction is performed with a constant suction force regardless of the state of entangled wrinkles and the like, and there is a problem that effective removal of wrinkles and the like is not performed. .

  The present invention has been made to solve the above-described conventional problems, and provides a situation-sensitive aspirator capable of performing suction in an optimum state according to the situation of a foreign object such as a bag. With the goal.

  In order to achieve the above object, the situation-sensitive aspirator of the present invention comprises a catheter having a suction hole, an aspirant storage container communicating with the catheter, and a suction pump for decompressing the aspirant storage container. A tactile sensor is provided at the distal end of the catheter, and the amount of decompression of the aspirated material container is adjusted according to the output of the tactile sensor.

  Further, according to another aspect of the present invention, the situation-sensitive aspirator includes a catheter having a suction hole, an aspirant storage container communicating with the catheter, and the suction object storage container by depressurizing the catheter. A suction pump that performs suction from the suction hole, and a tactile sensor is provided at the tip of the catheter, and the suction force from the suction hole of the catheter is adjusted according to the output of the tactile sensor It is characterized by.

  The situation-sensitive suction device according to the present invention configured as described above can effectively remove foreign substances such as wrinkles.

  Hereinafter, a situation sensitive aspirator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing a situation sensitive aspirator 10 according to a first embodiment of the present invention. The situation-sensitive aspirator 10 includes a catheter 11, a suction tube 12, an aspirated material storage container 13, a connecting hose 14, and a suction pump 15.

  FIG. 2 is an enlarged view of the catheter 11. The catheter 11 is a tube made of a soft material such as rubber or silicon tube, and a plurality of suction holes 19-1 to 19-3 are arranged at positions apart from each other in order to prevent adsorption to the mucous membrane inside the oral cavity. Is provided. A micro sensor element 16 is mounted at the distal end of the catheter 11. The micro sensor element 16 is a tactile sensor that detects a tactile sensation (reaction) when contacting an object (such as a heel) having viscoelastic characteristics.

  The micro sensor element 16 includes a piezoelectric vibrator 17 provided at a position in contact with an object and an integrated circuit 18 connected to the piezoelectric vibrator 17, and constitutes an oscillation circuit as a whole. Although not shown in the figure, wiring for supplying power and transmitting signals to the micro sensor element 16 is connected to the catheter 11, the suction tube 12, the suctioned material storage container 13, and the connecting hose 14. It is provided.

  In the use state, an object is connected to the piezoelectric vibrator 17 as a load, and the resonance frequency thereof changes. Based on the change in the resonance frequency, the viscoelastic property of the object can be calculated. The change in the resonance frequency is monitored externally via wiring (not shown). Of course, the mounting form itself of the micro sensor element 16 is not the core of the present invention. Therefore, the present invention is not limited to this, and an optimal configuration based on another principle may be adopted as appropriate.

  FIG. 3 is a circuit diagram of the situation-sensitive aspirator 10 according to the first embodiment of the present invention. The actual operation of the situation sensitive suction device 10 will be described below based on this circuit diagram. First, after the situation-sensitive aspirator 10 is activated, the catheter 11 is inserted into the oral cavity. Then, the piezoelectric vibrator 17 at the tip of the micro sensor element 16 comes into contact with a bag or the like. Then, the frequency of the signal transmitted from the micro sensor element 16 is shifted. For example, if wrinkles are soft, the frequency shift is small. On the other hand, if the wrinkles are stiff, the frequency shift becomes large.

  This frequency can be detected by monitoring with the frequency counter 20 of the suction pump 15, and the detection result is output to the control circuit 21. If a frequency shift is detected, power is supplied to the motor 22 and suction is started. And according to this deviation, the control circuit 21 of the suction pump 15 adjusts the rotation speed of the motor 22. That is, if wrinkles etc. are hard, increase the rotation speed of the motor and remove wrinkles with a stronger suction force, and if wrinkles etc. are softer, lower the rotation speed of the motor and use appropriate suction power. Remove wrinkles and the like.

  Next, a second embodiment of the situation sensitive aspirator according to the present invention will be described. FIG. 4 is an enlarged view of the catheter 31 of the situation sensitive aspirator 30 according to the second embodiment of the present invention. Similarly to the catheter 11, the catheter 31 is also provided with a micro sensor element. However, the details thereof are the same as those of the micro sensor element 16 of the catheter 11, and thus description thereof is omitted.

  The catheter 31 of the second embodiment is provided with two smaller suction holes 32-1 and 32-2 and a larger suction hole 33. Further, as shown in the cross-sectional view of FIG. 5, a slide piece 34 forming a part of a cylindrical shape concentric with the catheter 31 is provided inside. One end of the slide piece 34 is fixed to the wire 35, and the slide piece 34 can be moved back and forth in the axial direction by the wire 35. In a state where the slide piece 34 is moved to the distal end side of the catheter 31 by the wire 35, the larger suction hole 33 is closed as shown in FIG.

  FIG. 7 is a circuit diagram of the situation-sensitive aspirator 30 according to the second embodiment. In this circuit diagram, a linear motor 37 is added to the circuit diagram of FIG. The linear motor 37 is for moving the wire 35 to open and close the large suction hole 33.

  Hereinafter, the actual operation of the situation-sensitive suction device 30 will be described based on this circuit diagram. First, after the situation-sensitive aspirator 30 is activated, the catheter 11 is inserted into the oral cavity. Then, the piezoelectric vibrator 17 at the tip of the micro sensor element 16 comes into contact with a bag or the like. Then, like the situation sensitive suction device 10, the frequency of the signal transmitted from the micro sensor element 16 is shifted.

  And according to this deviation, the control circuit 36 adjusts the rotation speed of the motor 22 of the suction pump 15. At the same time, the control circuit 36 drives the linear motor 37 to move the wire 35 and control the opening and closing of the larger suction hole 33. That is, if wrinkles etc. are hard, large suction holes 33 are opened to facilitate removal of wrinkles and the like. If wrinkles are soft, the number of rotations of the motor is reduced and the large suction hole 33 is closed to remove wrinkles with an appropriate suction force.

  Next, a third embodiment of the situation sensitive aspirator according to the present invention will be described. FIG. 8 is an enlarged view of the catheter 41 of the situation sensitive aspirator 30 according to the third embodiment of the present invention. Similarly to the catheter 11, the catheter 41 is also provided with a micro sensor element. However, the details thereof are the same as those of the micro sensor element 16 of the catheter 11, and thus description thereof is omitted. Moreover, the circuit diagram of this 3rd Embodiment can use the circuit diagram of FIG. 7 as it is.

  The operation of the situation sensitive suction device of the third embodiment is almost the same as that of the second embodiment, but the control of the suction holes is different. That is, in this catheter 41, only one large suction hole 43 is provided. The suction hole 43 is opened and closed by a slide piece 44 as in the second embodiment, but the opening and closing amount is adjusted stepwise or continuously according to viscoelastic characteristics such as wrinkles, that is, hardness. Is done. Thereby, it becomes possible to perform suction | inhalation, such as a spear, in the optimal state.

  As described above, the present invention has been described with reference to the embodiment. However, for those skilled in the art, the present invention is not limited to the embodiment described in the present application, and many modifications and implementation examples are described in the above embodiment of the present invention. It is clear that this can be done.

  For example, in the above-described embodiment, only the viscoelastic characteristics are detected as the tactile sensor. However, the present invention is not limited to this, and in addition to the viscoelastic characteristics, humidity and other mucus states are further detected, and suction force is based on them. It is also more effective to adjust.

Schematic which shows the situation sensitive suction device which concerns on the 1st Embodiment of this invention. The enlarged view of the catheter of the condition sensitive suction device which concerns on the 1st Embodiment of this invention. 1 is a circuit diagram of a situation sensitive aspirator according to a first embodiment of the present invention. The enlarged view of the catheter of the situation sensitive type suction device which concerns on the 2nd Embodiment of this invention. Sectional drawing of the catheter of the situation sensitive suction device which concerns on the 2nd Embodiment of this invention. The enlarged view of the catheter of the situation sensitive type suction device which concerns on the 2nd Embodiment of this invention. The circuit diagram of the situation sensitive suction device which concerns on the 2nd Embodiment of this invention. The enlarged view of the catheter of the condition sensitive suction device which concerns on the 3rd Embodiment of this invention. The enlarged view of the catheter of the condition sensitive suction device which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Situation sensitive suction device 11 Catheter 12 Suction tube 13 Aspirate object container 14 Connecting hose 15 Suction pump 16 Ultra-small sensor element 17 Piezoelectric vibrator 18 Integrated circuit 19 Suction hole 20 Frequency counter 21 Control circuit 22 Motor 30 Situation sensitive type Aspirator 31 Catheter 32 Suction hole 33 Suction hole 34 Slide piece 35 Wire 36 Control circuit 37 Linear motor 41 Catheter 43 Suction hole 44 Slide piece

Claims (2)

  The catheter has a suction hole, a suction substance storage container communicating with the catheter, and a suction pump for decompressing the suction substance storage container, and a tactile sensor is provided at the distal end of the catheter. A situation sensitive aspirator, wherein the amount of pressure reduction of the aspirated material storage container is adjusted according to the output of. A catheter having a suction hole, a suction substance storage container communicating with the catheter, and a suction pump that performs suction from the suction hole of the catheter by depressurizing the suction substance storage container. Is provided with a tactile sensor, and the suction force from the suction hole of the catheter is adjusted according to the output of the tactile sensor.

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