JPH11267206A - Portable injector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To objectively and accurately read an injection quantity and an injection interval without requiring unnecessary behavior by detecting the completion of injection and detecting/recording the injected quantity. SOLUTION: A sleeve 3 is provided with a projection 3b and a switch 9 to be turned on and off the projection 3b. The switch 9 is turned on at the time of drawing a dosing knob and turned off at the time of pushing it. Consequently the completion of injection is detected by turning on and off of the switch 9 once respectively. This is judged by a microprocessor, etc. In addition, a setting dial 4 and the sleeve 3 for setting an injection quantity are rotated to determine the moving quantity of a plunger 6. In order to measure this rotating quantity, a rotary board rotating with the dial 4 is provided and the rotating quantity is detected by an optical sensor to be recorded in a microprocessor as an injected quantity. The injected quantity and injection interval are confirmed in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a portable syringe used for administering insulin and the like.

[0002]

2. Description of the Related Art Portable syringes are often used when self-administering insulin or the like. In most cases, a doctor makes a diagnosis and gives an instruction on the amount of the injection to be administered and the administration interval, and the administrator performs self-administration according to the instruction. The administration of the amount of injection solution to be administered and the administration interval are left to the administrator himself. In addition, the doctor's diagnosis is performed periodically, and a new injection amount to be administered and an administration interval are determined based on the result of the diagnosis, the amount of the administered injection solution in the past, and the administration interval, and an instruction is issued.

Conventionally, many portable syringes used for such self-administration are constituted only by a mechanical type. FIG. 1 shows a cross-sectional view of a typical structure. A cartridge 1 containing an injection solution is set in the syringe body 8.
The administration person pulls out the administration knob 2 before the injection. When the administration knob 2 is pulled out, the sleeve 3 and the nut 5 slide in the same direction as the administration knob 2 together with the administration knob 2. When the sleeve 3 is slid, the spline portion 3a of the sleeve 3 is moved.
Is connected to the spline portion 4a of the medication dial 4.

The joint between the sleeve 3 and the plunger 6 is not fixed in the sliding direction, but is fixed in the rotating direction. The joint between the sleeve 3 and the nut 5 is not fixed in the rotation direction, but is fixed in the sliding direction. As a result, when the user turns the setting dial 4, the sleeve 3 rotates, the plunger 6 also rotates, and the screw provided on the inner periphery of the nut 5 and the screw provided on the outer periphery of the plunger 6 allow the plan to be adjusted. The jar 6 slides. The amount of injection solution to be administered is determined by the amount of slide of the plunger 6.

If the dosing knob 2 is not pulled out, the sleeve 3 and the dosing dial 4 are not connected, and even if the dosing dial 4 is rotated, the plunger 6 does not move. The user turns the setting dial 4 to determine the amount of the injection to be administered, stabs the injection needle 7 at the injection site, and pushes the administration knob 2 to complete the injection. As a means for clarifying the volume of the injection solution to be administered, a setting dial 4 having a click and a scale, a setting dial 4 having a scale of 0 when the administration knob 2 is pulled out, and the like have been devised. I have.

[0006] As means for pulling out the medication knob 2, the medication knob 2 is pulled out by operating a button or the like using a spring force, and the medication knob 2 is pulled out when the scale of the setting dial 4 becomes zero. Things have been devised.

[0007]

In the syringe constituted only by the mechanical type described above, the administration of the volume of the injected liquid and the administration interval are entirely left to the user, and the volume of the injected liquid and the administration interval are administered. Cannot be viewed objectively and accurately. It is needless to say that it is important to control the volume of the injected solution and the administration interval as described above, as described above, at the time of the diagnosis by the doctor, when determining the dosage and the administration interval.

[0008] In addition, even if the user wants to control the amount of the injected solution or the administration interval, another recording means such as a memo must be devised and prepared. This means that even when using a portable syringe, the portable syringe must always be provided with the recording means in order to use the syringe. Must be very complicated.

[0009] Furthermore, since there is no possibility that the recording means is always portable, there are problems such as inaccuracy of the record due to ambiguous memory, incomplete administration intervals due to the effects of record browsing, record input and the like. .

The present invention overcomes these drawbacks, and the management of the amount of injection solution administered and the administration interval is objectively and accurately, requiring no extra action other than injection without using other recording means. An object of the present invention is to provide a portable syringe capable of objectively and accurately browsing the administered injection solution volume and administration interval.

[0011]

Means for detecting the completion of an injection, means for detecting the amount of an injected injection solution, and means for recording the amount of an injected injection solution, wherein the injection is completed And a portable syringe for recording the detected injection volume at the same time.

Means for detecting the completion of the injection, means for detecting the amount of the injected liquid, means for recording the amount of the injected liquid, a calendar and a clock function, and the injection has been completed. A portable syringe having means for recording the date, time and the amount of the injection solution detected when the injection is completed at the same time as the injection is completed.

Means for detecting the completion of the injection, means for detecting the amount of the injected liquid administered, means for recording the amount of the injected liquid detected when the injection is completed, and a dial for setting the amount of the injected liquid. It is a portable syringe having means for displaying the amount of the injection solution for setting the amount of the injection solution to be rotated and administered and the amount of the injection solution recorded when the injection is completed.

Means for detecting the completion of the injection, means for detecting the amount of the injected injection solution, a calendar and a clock function, and the date and time when the injection is completed and the time when the injection is completed Means for recording the detected injection volume, the injection volume for setting the injection volume to be administered by rotating the injection volume setting dial, and the injection volume and date recorded when the injection is completed , A portable syringe having means for displaying time and time.

[0015]

FIG. 8 is a front view of a portable syringe showing one embodiment of the present invention, and FIG. 9 is a top view showing a partial cross section of the portable syringe showing one embodiment of the present invention. is there.
FIG. 2 is a cross-sectional view illustrating a means for detecting completion of an injection in one embodiment of the present invention. In FIG. 1, when the injection is completed, the administration knob 2, the sleeve 3, and the nut 5 are pushed in and slide. So dosing knob 2,
What is necessary is just to detect that the sleeve 3 and the nut 5 have slid. In FIG. 2, a projection 3b is provided on the sleeve 3, and a switch 9 which is turned on or off by the projection 3b is provided so as to be fixed to the main body 8. The switch 9 is turned on when the medication knob 2 is pulled out, and is turned off when the medication knob 2 is pushed. The completion of the injection is detected by observing the state of the switch 9. That is, the time when the switch 9 is turned on once and then turned off again is the time when the injection is completed. Means for judging the completion of the injection based on the state of the switch 9 can be easily realized by using a microprocessor or the like. Further, the switch 9 can be used as an operating power source for the portable syringe of the present invention.

In this embodiment, the switch 9 is turned on or off by the sleeve 3. However, any slide of the medication knob 2, the sleeve 3, and the nut 5 may be detected as described above. This can be realized by using an optical sensor or the like instead of the switch 9.

FIG. 3 is a cross-sectional view illustrating a means for detecting the amount of injection solution to be administered in one embodiment of the present invention.
FIG. 4 is a side view illustrating a means for detecting an amount of an injection to be administered in one embodiment of the present invention. When setting the amount of injection solution to be administered in FIG. 1, the setting dial 4 and the sleeve 3 rotate. Set dial 4 for injection volume to be administered
Is determined by the amount of movement of the plunger 6 due to the rotation of. Therefore, by detecting that the setting dial 4 and the sleeve 3 have rotated and the amount of rotation, the amount of the injection solution to be administered can be detected.

In FIG. 3, a rotating plate 10 which rotates simultaneously with the setting dial 4 is provided. The rotating plate 10 has a slit 10
a is provided, and two optical sensors 11a and 11b are provided at positions where light crosses the slit 10a. When the setting dial 4 rotates, the rotating plate 10 also rotates, and the rotating plate 1
0 is provided with the optical sensors 11a and 1
1b is transmitted or blocked. Optical sensors 11a and 11
Since b outputs an on or off signal according to the light amount, the rotation and the rotation amount can be detected by turning on or off the outputs of the optical sensors 11a and 11b. Note that two optical sensors 11a and 11b are used because the amount of injection to be administered may increase or decrease depending on the rotation direction of the setting dial 4.
The rotation direction is determined based on the phase difference between the on and off states of the outputs of the two optical sensors 11a and 11b, and the number of on and off states of the outputs of the optical sensors 11a and 11b is counted to detect the amount of the injection liquid to be administered. As described above, the means for determining the rotation direction based on the phase difference between the outputs of the optical sensors 11a and 11b, and detecting the amount of the injection solution to be administered by counting the number of times the outputs of the optical sensors 11a and 11b are turned on and off, It can be easily realized by using a microprocessor or the like.

In this embodiment, the rotation of the rotary plate 10 linked to the setting dial 4 is detected by the optical sensors 11a and 11b.
May be detected. Optical sensor 11
This can be realized by using a switch or the like instead of a and 11b.

In this embodiment, the setting dial 4 is rotatable even when it is not connected to the sleeve 3. Therefore,
Even when the injection liquid is not connected to the sleeve 3, that is, when the amount of the injection liquid to be administered cannot be set, the rotation and the rotation amount are detected. However, in this embodiment, since the switch 9 for detecting the completion of the injection is provided, the amount of the injection solution to be administered can be set by arranging the switch 9 at a position where the setting dial 4 and the sleeve 3 start coupling. It is possible to detect the rotation and the amount of rotation only when necessary. In other words, the switch 9 for detecting the completion of the injection also has a function of detecting whether or not the amount of the injection solution to be administered can be set. Further, the switch 9 can be used to perform an operation such as resetting to zero before setting the amount of the injection solution to be administered.

FIG. 5 is a block diagram in one embodiment of the present invention. The microprocessor 12 and the memory 13 are mounted on a substrate 17 shown in FIG. The switch 9 for detecting the completion of the injection and the optical sensors 11a and 11b for detecting the amount of the injected liquid to be administered are connected to the microprocessor 12. The microprocessor 12 confirms that the switch 9 has been turned on, and sequentially detects the amount of the injection to be administered from the outputs of the optical sensors 11a and 11b. Since the outputs of the optical sensors 11a and 11b are two outputs, the phase difference between the two outputs of the optical sensors 11a and 11b is checked to determine whether the amount of the injected liquid to be administered has increased or decreased.

A method for confirming whether the amount of the injection to be administered has increased or decreased based on the phase difference between the two outputs of the optical sensors 11a and 11b will be described. Optical sensors 11a and 11
b is arranged in the circumferential direction of the rotating plate 10. Therefore,
In FIG. 4, when the rotating plate 10 is rotated clockwise, and when the optical sensors 11a and 11b are turned on, the optical sensor 11 is turned on.
b turns on first, and the optical sensor 11a turns on with a delay. When the optical sensors 11a and 11b are turned off, the optical sensor 11
b turns off first, and the optical sensor 11a turns off with a delay. When the rotating plate 10 is rotated counterclockwise, the reverse occurs, the optical sensor 11a is turned on first, the optical sensor 11b is turned on with a delay, the optical sensor 11a is turned off first, and the optical sensor 11b is turned off with a delay. Here, since it is necessary to accurately detect the amount of the injection solution to be administered, it is determined whether the amount of the injection solution to be administered at a specific position on the rotating plate 10 has increased or decreased. Assuming that a specific position of the rotating plate 10 is a clockwise position where the optical sensor 11b is turned on, the rotation direction may be determined based on the state of the optical sensor 11a when the optical sensor 11b is turned on and off. That is, when the optical sensor 11b is turned on, the optical sensor 11a is turned off if the optical sensor 11a is off.
If the optical sensor 11a is off when 1b is turned off, it turns counterclockwise,
If the optical sensor 11a is on when the optical sensor 11b is on, no determination is made.

Since the rotation direction is determined based on the two outputs of the optical sensors 11a and 11b, the amount of rotation is calculated from the number of times the rotation direction is determined and the number of slits 10a of the rotating plate 10. It is assumed that the number of the slits 10a of the rotating plate 10 is 10 in the clockwise direction in which the amount of the injection liquid to be administered increases. If the number of times clockwise is determined to be 30 and the number of times clockwise is determined to be 5, the number of clockwise determinations 30-the number of counterclockwise determinations 5 = 25, and finally clockwise 25 times Judgment has been made, and the rotation amount is 360 {several tens of slits x judgment count 25 = 900}, that is, 2.1
/ 2 rotations. Therefore, the volume of the injection solution to be administered is
0, in other words, 2 分 rotations of the setting dial 4.

When the rotation amount of the setting dial 4 is calculated,
The amount of injection solution to be administered is calculated from the pitch of the screw of the plunger 6 and the inner diameter of the cartridge 1. That is, the amount of rotation ×
Screw pitch x cartridge inner diameter cross-sectional area is the amount of injection solution to be administered. Here, if the amount of the injection solution to be administered is to be finely set, the number of slits 10a of the rotating plate 10 may be increased and the screw pitch of the plunger 10 may be reduced. In addition, if the setting of the volume of the injection solution to be administered is not precise, but it is necessary to make it accurate, the setting dial 4 etc. should be clicked, and the setting dial 4 etc. should be mechanically stopped at a certain specific position. I just need.

The microprocessor 12 checks whether the switch 9 is turned off while sequentially calculating the amount of the injection to be administered. The microprocessor 12 determines that the injection has been completed by turning off the switch 9 and records the finally detected amount of the injection solution in the memory 13 as the administered injection solution amount at the same time as the determination of the completion of the injection. The memory 13 has a capacity capable of recording a plurality of injected liquid volumes. As a result, the completion of the injection and the volume of the injected solution can be detected without requiring any operation other than the operation of performing the injection, and a record can be automatically recorded, so that the amount of the injected solution can be easily managed. In addition, the administrator can perform the injection at any time and any place with the syringe, without being conscious of taking a record.

FIG. 6 is a block diagram obtained by adding a calendar 14 and a clock 15 to the block diagram of FIG. The microprocessor 12 obtains the date and time when the injection is completed from the calendar 14 and the clock 15, and records the date and time together with the volume of the injected liquid into the memory 13 at the same time when the injection is completed. FIG. 7 is a block diagram obtained by adding a display 16 to the block diagram of FIG. A liquid crystal display or the like is used for the display 16. The microprocessor 12 sets the volume of the injection to be administered, the volume of the injection that was recorded when the injection was completed, the volume of the injection that was recorded, and the volume of the injection that was recorded. Is displayed on the display 16 at the time when is completed. Thus, in addition to the amount of the injected injection solution, time management such as the injection interval can be easily performed. Also, by attaching a switch for record viewing, etc., you can freely view the record, etc.
Information necessary for consultation can be obtained only with a syringe. further,
If an alarm function is added, it is possible to easily give an instruction from the syringe by an alarm or the like when it is time to perform an injection, or give a warning instruction to a time constraint such as a plurality of injections within a certain time.

[0027]

According to the present invention, the amount of the injected solution and the interval between injections can be managed accurately and objectively without using other recording means.

No recording operation is required, and the recording can be automatically recorded only by performing the injection operation.

The amount of the injected injection solution and the injection interval can be accurately and objectively viewed without using other devices.

The degree of freedom is not restricted by the location, time and equipment used for injection. In addition, places such as doctor's diagnosis,
There is no restriction on time, equipment used, etc.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view for explaining a conventional technique.

FIG. 2 is a cross-sectional view illustrating one embodiment of a means for detecting completion of an injection.

FIG. 3 is a cross-sectional view illustrating an embodiment of a means for detecting an amount of an injection solution to be administered.

FIG. 4 is a side view illustrating an embodiment of a means for detecting an amount of injection solution to be administered.

FIG. 5 is a block diagram for explaining an embodiment;

FIG. 6 is a block diagram when a calendar and a clock are added.

FIG. 7 is a block diagram when a display is added.

FIG. 8 is a front view of a portable syringe showing one embodiment of the present invention.

FIG. 9 is a top view showing a partial cross section of a portable syringe according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2 Dosing knob 3 Sleeve 3a Sleeve spline part 4 Setting dial 4a Setting dial spline part 5 Nut 6 Plunger 7 Injection needle 9 Switch 10 Rotating plate 10a Rotating plate Slit 11a Optical sensor 11b Optical sensor 12 Microprocessor 13 Memory 14 Calendar 15 Clock 16 display 17 board

Claims (4)

[Claims] 1. means for detecting completion of an injection;
Means for detecting the amount of injected solution administered, and means for recording the amount of injected solution administered, wherein the detection of the completion of the injection and the recording of the detected amount of injected solution at the same time, Portable syringe. 2. The portable syringe according to claim 1, further comprising a calendar and a clock function, and means for detecting completion of the injection and recording a date and time when the injection is completed. . 3. The mobile phone according to claim 1, further comprising means for displaying the amount of the injection solution when setting the amount of the injection solution to be administered and displaying the amount of the injection solution recorded when the injection is completed. Type syringe. 4. The apparatus according to claim 2, further comprising means for displaying the amount of the injection solution when setting the amount of the injection solution, and the amount of the injection solution, date and time recorded when the injection is completed. Portable syringe.