JPH11267207A - Portable injector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the setting of an injection quantity and an injecting time and to protect the privacy of a person to be injected by detecting and recording the completion of injection and an injected quantity and communicating with an external device. SOLUTION: A projection is provided in the sleeve of an injector to turn on or off a switch 9 by the once drawing or pushing of the sleeve. This is detected as on injecting operation and recorded in a microprocessor 12. In addition, an injection quantity setting dial with a rotary plate is provided and rotated with the sleeve to set an injection quantity. The rotating quantity of the rotary plate is detected by optical sensors 11a and 11b to obtain an injected quantity to be recorded in the microprocessor 12. Data in the microprocessor 12 is sent to the personal computer 18 of an external device by a communication IF 14 to be recorded, stored, etc., thereby privacy is protected and the injection quantity and the injecting time are managed.

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. 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 connected to the spline portion 4a of the setting 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 cause the plan to be changed. 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 setting dial 4 are not connected, and even if the setting 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 scale with a click and a setting dial 4 having a scale of 0 when the administration knob 2 is pulled out 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, or 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. In the case of administration, the amount and timing of the injection to be administered are all left to the administering person. The amount and time of the injection to be administered must be set or memorized by the administrator.

[0008] Further, even if the user attempts to control the amount of injection solution administered and the administration interval and to set the amount of injection solution to be administered and the time, etc., other recording means such as memos must be devised and prepared. No. This means that, even in the case of a portable syringe, when using the syringe, the portable syringe and the recording means must always be provided, and there is no relation to injection such as record viewing, record input, setting viewing, etc. The act must be performed, which is very complicated.

[0009] Further, since there is no possibility that the recording means is always portable, there is inaccuracies in the recording and inaccuracy of the injection execution due to ambiguity of the memory, and incomplete administration intervals due to the influence of the recording and setting browsing, the recording input and the like. And other problems. In the diagnosis of a doctor, since the recording means differs depending on each administrator, it is necessary for the doctor to perform an operation such as copying the record of the administrator. Naturally, mistakes and the like are likely to occur, which is a complicated operation. In addition, it is difficult to protect the privacy of the administrator since a recording means that can be viewed by anyone must be used.

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. To provide a portable syringe that can objectively and accurately view the volume of injection solution administered and the interval between administrations, can easily set the injection volume and timing to administer, and protect the privacy of the administrator. It is.

[0011]

Means for detecting the completion of the injection, means for detecting the amount of the injected liquid administered, and means for detecting the completion of the injection and recording the detected amount of the injected liquid at the same time And a communication device capable of communicating with an external device.

Means for detecting the completion of the injection, means for detecting the amount of the injected injection solution, means for detecting the completion of the injection and recording the detected injection amount at the same time; A portable syringe having a clock function and having means for recording the date and time when the injection is completed and the amount of the injection solution detected when 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 has means for displaying the amount of the injection solution when setting the amount of the injection solution to be rotated and administered, the means for displaying the amount of the injection solution recorded when the injection is completed, and the means for displaying information and the like at the time of communication with the external device. It is a portable syringe.

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 time, and a means for displaying information and the like during communication with an external device.

[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 checking 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, but as described above, the medication knob 2,
Any slide of the sleeve 3 or the nut 5 may be detected. 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 the injection to be administered in FIG. 1, the setting dial 4 and the sleeve 3 are rotated. 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, if the setting dial 4 and the sleeve 3 are rotated and the amount of rotation is detected, 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. However, as described above, the rotation of either the setting dial 4 or the sleeve 3 may be detected. I do not care. Optical sensor 11a
And 11b can be realized using a switch or the like.

In this embodiment, the setting dial 4 is rotatable even when it is not connected to the sleeve 3. Therefore,
Even when it is not connected to the sleeve 3, that is, when the amount of the injected liquid to be administered cannot be set, the rotation and the amount of rotation are detected. However, in this embodiment, since the switch 9 for detecting the completion of the injection is provided, by setting the switch 9 at a position where the setting dial 4 and the sleeve 3 start coupling, the amount of the injection solution to be administered can be set. 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 setting the amount of the injection to be administered. 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 19 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
The amount of the injection to be administered is sequentially calculated from the outputs of 1a 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. After the amount of rotation of the setting dial 4 is calculated, the amount of injection liquid 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 the injection liquid to be administered is the amount of rotation × the screw pitch × the cross-sectional area of the inner diameter of the cartridge. 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 injection solution to be administered. The microprocessor 12 determines that the injection has been completed by turning off the switch 9, and records the finally calculated amount of the injection as an administered injection in the memory 13 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 showing connection with an external device. In this embodiment, the external device is a personal computer 18. Reference numeral 14 denotes a communication IF, which is mounted on a board 19 in the embodiment of the present invention shown in FIG. It is connected to a personal computer 18 using the communication IF 14. As a result, the record of the administered injection volume recorded in the memory 13 can be taken into the personal computer 18. The personal computer 18 can freely view, edit, save, and the like the record of the taken injection amount.
Since the communication IF 14 can also perform bidirectional communication, information from the personal computer 18 can be taken into the memory 13. For this reason, for example, the doctor uses the personal computer 18 to preliminarily fetch the information such as the amount of the injection solution to be injected by the administrator into the memory 13 and, based on the fetched information, the information such as the amount of the injection solution to be administered by the administrator. The time conditions can be checked with a syringe. or,
It is also possible to issue a warning or the like when the setting of the injection liquid amount or the like is abnormal. This can be easily realized by using a comparator for comparing the acquired information with the setting made by the user and a warning means such as a buzzer. The warning means may be visually provided by a display. Further, by using a password or the like, it is possible to easily realize the restriction of taking out the record of the administered injection volume and setting the injection volume to be administered, and the like.
Protection of the privacy of the administrator, confidentiality of the condition setting at the time of injection by the doctor, etc. can be easily realized.

FIG. 7 is a block diagram obtained by adding a calendar 15, a clock 16, and a display 17 to the block diagram of FIG. The display 17 uses a liquid crystal display or the like. The microprocessor 12 obtains the date and time when the injection is completed from the calendar 15 and the clock 16 and records the date and time together with the administered amount of the injected liquid in the memory 13 simultaneously with the completion of the injection. The microprocessor 12 also displays and records the injection volume when setting the injection volume to be administered, the injection volume recorded when the injection is completed, and the recorded injected volume. The date, time, information at the time of communication and the like at the time of completion of the given injection are displayed on the display 17. Thus, in addition to the amount of the injected injection solution, time management such as the injection interval can be easily performed. It goes without saying that time can be set even when setting conditions for injection by communication from an external device. In addition, by attaching a switch for viewing records, it is possible to freely view records and condition settings, etc.
Setting of conditions at the time of injection to the administrator can be obtained only with the syringe. Further, if an alarm function is added, it is possible to easily issue an instruction from the syringe by an alarm or the like when it is time to perform an injection, and a warning instruction to a time constraint such as a plurality of injections within a predetermined 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. In addition, the amount of the injected injection solution and the injection interval can be viewed accurately and objectively without using other devices.

Since the record can be taken in by an external device, the degree of freedom in browsing and editing the record can be increased, and the information can be taken in from the outside so that the condition setting at the time of injection can be easily performed, and the degree of freedom in managing the condition at the time of injection can be increased. You.

There is no restriction on the location, time, equipment used, etc. for injection, and the degree of freedom is increased.
The degree of freedom is not affected by the restrictions on the equipment used.

[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 for explaining a communication state with an external device.

FIG. 7 is a block diagram when a calendar, a clock, and a display are 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 Communication IF 15 Calendar 16 Clock 17 Display 18 Personal computer 19 Substrate

Claims (4)

[Claims] 1. means for detecting completion of an injection;
A portable injector comprising: means for detecting an amount of injected liquid administered; means for recording the detected amount of liquid injected; and communication means capable of communicating with an external device. 2. The portable syringe according to claim 1, further comprising a calendar and a clock function, and a means for recording a date and time when the injection is completed. 3. A means for displaying the amount of the injection solution when setting the amount of the injection solution to be administered, a means for displaying the amount of the injection solution recorded when the injection is completed, and displaying information or the like at the time of communication with the external device. 2. The portable syringe according to claim 1, further comprising means. 4. A means for displaying the amount of the injection solution when setting the amount of the injection solution, the amount of the injection solution, the date and time recorded when the injection is completed, and information and the like when communicating with the external device. 3. The portable syringe according to claim 2, further comprising means for displaying a message.