TWI801852B - Dose recorder and dose recording method thereof - Google Patents

Abstract

A dose recorder applied in a medicine supply device is provided in this disclosure. The dose recorder has a button, a cap, a main circuit board, and a plurality of light barriers. The cap is pivoted and with the button and thereby relatively rotatable. The main circuit board is arranged on the cap, and a first photo interrupter and a second photo interrupter are arranged on the main circuit board. The light barriers are arranged on the cap corresponding to the first photo interrupter and the second photo interrupter. When the button and the cap are rotated relative to each other, the first photo interrupter and the second photo interrupter are rotated relative to the light barriers and sequentially passed and triggered by the light barriers, and a predetermined difference between respective triggering actions of the light barrier to the first photo interrupter and the second photo interrupter is exist.

Description

Dose recorder and dose recording method thereof

The invention relates to a dose recorder of a medicament supply device, in particular to a dose recorder capable of correcting abnormal data and a dose recording method thereof.

A traditional medicament injection device, such as an insulin injection pen, has an outer cylinder and a push rod, the push rod passes through the outer cylinder and has threads on the push rod. The outer barrel may contain a syringe, and the push rod is twisted to move outward from the outer barrel to set the injection dose. Then, the user axially squeezes the push rod so that the push rod pushes the syringe to output the medicament in the syringe. While injecting by the aforementioned method, the push rod is screwed to rotate. Therefore, the user can set the injection dose by twisting the push rod, but the injection dose cannot be recorded automatically. Users still have to manually record injection doses.

In view of this, the inventor of the present invention aimed at the above-mentioned prior art, devoted himself to research and combined with the application of theories, and tried his best to solve the above-mentioned problems, which became the goal of the inventor's improvement.

The invention provides a dose recorder capable of correcting abnormal data and a dose recording method thereof.

The present invention provides a dose recorder for a medicine supply device. The dose recorder includes a button, a cap, a main circuit board and a plurality of shielding blocks, which are arranged on the cap corresponding to the first photointerrupter and the second photointerrupter. The cap is pivotally connected to the button, and the button and the cap can rotate relatively. The main circuit board is arranged on the cap, and the main circuit board is provided with a first photointerrupter and a second photointerrupter. The shielding block is arranged on the button corresponding to the first photointerrupter and the second photointerrupter. When the button and the cap are relatively rotated, the first photointerrupter and the second photointerrupter are rotated relative to the shielding block, and the shielding blocks respectively pass one by one to trigger the first photointerrupter and the second photointerrupter, And there is a predetermined difference between the triggering action of the shielding block for the first photo-interrupter and the triggering action of the shielding block for the second photo-interrupter.

In the dose recorder of the present invention, the triggering action of the shielding block on the first photointerrupter and the triggering action of the shielding block on the second photointerrupter have a predetermined phase difference.

In the dose recorder of the present invention, the rotation angle at which the shielding blocks trigger the first photo-interrupter each time is different from the rotation angle at which the shielding blocks trigger the second photo-interrupter each time.

In the dose recorder of the present invention, the shielding blocks are arranged in a circular row to form a grating, and the first photointerrupter and the second photointerrupter are respectively arranged at two positions on the moving path of the grating.

In the dose recorder of the present invention, the shielding blocks are arranged in two circular rows to respectively form a first grating and a second grating, the first photointerrupter is arranged on the moving path of the first grating, and the second photointerrupter Arranged on the moving path of the second grating. When the button and the cap rotate relative to each other, the shielding blocks in the first grating pass sequentially to trigger the first photointerrupter, and the shielding blocks in the second grating pass sequentially to trigger the second photointerrupter .

The present invention provides a dose recording method, which is used in a drug supply device. The dose recording method includes: providing a button and a cap that are pivotally connected to each other and can be rotated relative to each other. The cap is provided with a first photointerrupter and a The second photointerrupter, the button corresponds to the first photointerrupter and the second photointerrupter The device is provided with a plurality of shielding blocks, and when the button and the cap rotate relative to each other, these shielding blocks trigger the first photointerrupter and the second photointerrupter respectively through the first photointerrupter and the second photointerrupter to A plurality of first blocking signals and a plurality of second blocking signals are respectively generated one by one, and the first blocking signals and the second blocking signals have a predetermined difference. Connecting the cap to the medicament supply device and using the medicament supply device to inject and rotate the cap simultaneously, when the measured difference between the first blocking signal and the second blocking signal is not a predetermined difference, it is judged as abnormal. The injection is stopped and the rotation angle of the cap is measured according to the times of the first blocking signal and the second blocking signal to convert the injection dose of the medicine supply device.

In the dose recording method of the present invention, the rotation angles of each first blocking signal and each second blocking signal generated by the shielding block are different.

In the dose recording method of the present invention, the first blocking signal and the second blocking signal have a predetermined phase difference.

In the dosage recording method of the present invention, when the button and the cap rotate relative to each other, the first photointerrupter and the second photointerrupter are respectively triggered by the sequential passing of the corresponding rows of the shielding blocks.

In the dose recording method of the present invention, the medicament supply device has an outer cylinder for accommodating the medicament and a push rod passing through the outer cylinder, the push rod can move axially to output the medicament, and the push rod moves axially Rotate at the same time, and the cap is connected to the push rod to rotate in conjunction.

In the dose recording method of the present invention, the step further includes: when the measured difference between the first and second blocking signals is not a predetermined difference, calculating the abnormal first and second blocking signals to compensate The rotation angle of the cap.

In the dose recording method of the present invention, the step further includes: prompting an abnormal message when the measured difference between the first blocking signal and the second blocking signal is not a predetermined difference.

In the dose recorder and the dose recording method thereof of the present invention, the first light interrupter and the second light interrupter respectively generate a first blocking signal and a second blocking signal with a predetermined difference. When the signal is lost or the operation is reversed due to improper operation, the difference between the first blocking signal and the second blocking signal will deviate from the predetermined difference, so that the abnormal signal can be judged and the abnormal signal can be eliminated to correct the error.

10: Drug supply device

11: Outer cylinder

12: putter

100: button

110: shaft

120: Press pin

130: spring

200: cap

200a: Cover

200b: connecting sleeve

200c: frame

210: fixture

220: pawl

300: bearing

400: Main circuit board

410: switch

420: battery

500:Optical gate

501/501c/501d/501e/501f: Clearance

502: grating

502c/502e: first grating

502d/502f: second grating

510: plate body

520/520c/520d/520e/520f: Mask block

530: ratchet

600a/600c/600e: First photointerrupter

600b/600d/600f: Second photointerrupter

610a/610b/610c/610d/610e/610f: Optical Transmitter

620a/620b/620c/620d/620e/620f: optical receiver

T1: Angle

T2: angle

Fig. 1 is a three-dimensional schematic diagram of a dose recorder according to the first embodiment of the present invention.

Fig. 2 is an exploded perspective view of the dose recorder of the first embodiment of the present invention.

Fig. 3 is a longitudinal sectional view of Fig. 1 .

Fig. 4 is a transverse sectional view of Fig. 1 .

Fig. 5 is an exploded perspective view of a dose recorder according to a second embodiment of the present invention.

Fig. 6 is a transverse sectional view of Fig. 5 .

Fig. 7 is an exploded perspective view of a dose recorder according to a second embodiment of the present invention.

Fig. 8 is a transverse sectional view of Fig. 7 .

Fig. 9 is a flowchart of the dose recording method of the present invention.

Referring to FIG. 1 to FIG. 4 , the first embodiment of the present invention provides a dose recorder, which can be attached to a medicine supply device 10 . The medicament supply device 10 has an outer cylinder 11 and a push rod 12 , the push rod 12 is passed through the outer cylinder 11 and has threads on the push rod 12 . The outer cylinder 11 may be loaded with a syringe, and during injection, the push rod 12 is pressed axially to push the syringe to output the medicine in the syringe. Moreover, the push rod is driven to rotate by the screw while injecting.

In this embodiment, the dose recorder of the present invention at least includes a button 100, a cap 200, a bearing 300, a main circuit board 400, an optical gate 500, a photo interrupter 600a and a second photo interrupter 600b.

The button 100 and the cap 200 are pivotally connected to each other and can rotate relative to each other. Cap 200 may be assembled from multiple parts. In this embodiment, the cap 200 preferably includes a casing 200a, a connection sleeve 200b and a frame 200c. The cap 200 is pierced with the shaft 110 and the button 100 is connected to one end of the shaft 110, and the bearing 300 is clamped between the shaft 110 and the cap 200, so that the button 100 and the cap 200 can be relative to each other. rotate.

The main circuit board 400 is disposed in the cap 200 , and a battery 420 for driving the main circuit board 400 is disposed in the cap 200 . The optical gate 500 is disposed on the other end of the shaft 110 , and the photointerrupter 600 is disposed on the main circuit board 400 .

In this embodiment, the frame 200c of the cap 200 is flat, and the main circuit board 400 is disposed on one side of the frame 200c. The casing 200a covers the frame 200c to house the main circuit board 400 therein. The shaft 110 is passed through the cap 200 through the casing 200 a and the bearing 300 is clamped between the shaft 110 and the casing 200 a so that the button 100 and the cap 200 are pivotally connected to each other. The connecting sleeve 200 b is disposed on the other side of the frame 200 c to connect the push rod 12 , so that the cap 200 can be rotated by the push rod 12 in conjunction. Moreover, a clamp 210 for clamping the push rod 12 is provided in the connecting sleeve 200b.

The main circuit board 400 is provided with a switch 410 electrically connected to the first photointerrupter 600a and the second photointerrupter 600b, and the switch 410 is used to open and close the first photointerrupter 600a and the second photointerrupter 600b , in this embodiment, a pressing pin 120 is extended from the button 100 for linking the pressing switch 410 .

However, the present invention is not limited thereto, and the switch 410 can also be configured separately from the button 100 without interlocking, and the switch 410 is exposed for the user to operate. In the present invention, the switch 410 is not limited to a general mechanical switch such as a button or a lever, and the switch 410 can also be triggered electronically. For example, switch 410 can be formed by the circuit on the main circuit board 400, and the corresponding conductor can be set on the button 100 (for example, the end of the pressing pin 120 is provided with conductive foam, or the pressing pin 120 itself is made of conductive material). When pressed, the conductive body contacts the switch 410 and conducts with it to trigger.

The optical gate 500 is accommodated in the casing 200a and is fixed to the button 100. The optical gate 500 has a disc body 510, the shaft 110 is connected to the center of the disc body 510, and the disc body 510 is provided with a plurality of shielding blocks 520. The shielding blocks 520 Protrude from one side of the disc body 510 and set at a certain distance around the center of the disc body 510 to form a gap 501 between adjacent shielding blocks 520, and the gap 501 between any two adjacent shielding blocks 520 has the same distance.

The first photo-interrupter 600a and the second photo-interrupter 600b have the same structure, and each has a light emitter 610a/610b for projecting a light beam and a light emitter 610a/610b disposed opposite to the light emitter 610a/610b for receiving the light beam. Receiver 620a/620b.

In this embodiment, the shielding blocks 520 are arranged in a row along a central axis to form the grating 502, and the first photointerrupter 600a and the second photointerrupter 600b are respectively arranged on two sides of the moving path of the grating 502. place.

During operation, the user tightly fits the dose recorder on the push rod 12 of the medicine supply device 10 so that there is no relative movement between the cap 200 and the push rod 12 . During dose programming, the user can rotate the dose recorder to drive the push rod 12 to move axially and rotate. At this time, the button 100 and the cap 200 do not move relative to each other. When injecting a dose, the user can hold the outer cylinder 11 and press the button 100 of the dose recorder. The user presses the button 100 to further inject the medicine by axially pressing the push rod 12 through the cap 200, so that the push rod 12 moves axially and rotates at the same time, while the button 100 does not rotate with the axial movement of the push rod 12. Therefore, the optical shutter 500 fixed on the button 100 moves axially without rotation; in addition, the cap 200 moves axially and rotates with the push rod 12, thereby driving the first photointerrupter 600a and the second photointerrupter 600b rotates relative to the optical gate 500 . and Moreover, when the user presses the button 100 for injection, the push pin 120 touches the switch 410 at the same time to activate the first photo-interrupter 600a and the second photo-interrupter 600b.

When the first photointerrupter 600a and the second photointerrupter 600b rotate with the cap 200 relative to the optical gate 500, the shielding block 520 moves relative to each other in turn through each light emitter 610a/610b and its corresponding light receiver 620a/ 620b, and the shielding block 520 sequentially interrupts the light beam. The light receivers 620 a / 620 b output two different types of response signals corresponding to the shielding block 520 and the gap 501 , such as different voltages or power on/off, and the response signals are sent to the main circuit board 400 . The triggering referred to in the present invention is not limited to blocking the light beam by the shielding block 520 to cause the light receiver 620a/620b to cause a corresponding electrical state in the circuit, but also includes the gap 501 allowing the light beam to pass through to cause the light receiver 620a/620b to cause a corresponding electrical state in the circuit electrical state.

Specifically, the first photo-interrupter 600a and the second photo-interrupter 600b respectively generate a plurality of first blocking signals and a plurality of second blocking signals one by one. The first blocking signal may only include one of the two response signals corresponding to the masking block 520 and the gap 501 , or may include a group of response signals corresponding to the masking block 520 and the gap 501 . The second blocking signal may only include one of the two response signals corresponding to the masking block 520 and the gap 501 , or may include a set of response signals corresponding to the masking block 520 and the gap 501 .

The triggering action of the shielding blocks 520 on the first photo-interrupter 600a and the triggering action of the shielding blocks 520 on the second photo-interrupter 600b have a predetermined difference, and the predetermined difference will be described in detail below. In this embodiment, the rotation angle T1 of the shielding block 520 and the gap 501 each time the first blocking signal is generated is the same as the rotation angle T2 of each second blocking signal. However, the first photo-interrupter 600a and the second photo-interrupter 600b are configured with an angle deviation and the deviation angle is not equal to the aforementioned rotation angle T1/T2 or its multiples, so that the first blocking signal and the second blocking signal There is a phase difference between them.

After injection, the user releases the button 100 to stop the first photointerrupter 600a and the second photointerrupter 600b, and the main circuit board 400 can calculate the rotation angle according to the number of response signals, and further according to the corresponding drug supply device 10 The predetermined ratio is converted into the corresponding injected dose. The main circuit board 400 can automatically record injection doses and transmit records for health management.

The first photointerrupter 600a and the second photointerrupter 600b respectively detect the shielding block 520 and the gap 501, when the first photointerrupter 600a and the second photointerrupter 600b detect the first interrupting signal and the second When the difference of the blocking signal is not the predetermined difference, the main circuit board 400 can judge it as abnormal based on this, which may be signal loss or reverse rotation, and the first blocking signal and the second blocking signal detected this time can be further Perform calculations to compensate the rotation angle of the cap, and can also prompt an abnormal message to confirm to the user whether there is a reverse button or an abnormal situation of excessive rotation.

In order to improve the accuracy of recording the injection dose, the rotation angle of the shielding block 520 each time the photointerrupter is triggered should be smaller than the twist angle of the push rod 12 for injecting each unit dose to facilitate adjustment. Each time the gap 501 triggers the rotation angle of the photointerrupter should be smaller than the twist angle of the push rod 12 and should also be smaller than the twist angle of each unit dose injected by the push rod 12 to facilitate adjustment. In order to further precisely adjust the injection dose, the twist angle of the push rod 12 per unit injection dose may be a multiple of the corresponding angle of the shielding block 520 and the gap 501 . For example, the respective angles of the shielding block 520 and the gap 501 are 7.5 degrees, and the twist angle of the push rod 12 for injecting a unit injection dose is 15 degrees. Furthermore, the photo-interrupter is triggered through the shielding block and/or the gap, compared with the reflective optical sensor, it can avoid reflection abnormality caused by material loss of the reflective surface or angle deviation.

In addition, the ratchet 530 and the corresponding pawl 220 may be respectively provided on the optical gate 500 and the cap 200 to prevent reverse rotation due to incorrect operation, and the ratchet 530 and the corresponding pawl 220 are interchangeable. Moreover, a spring 130 may be optionally provided in the cap 200 to press the ratchet 530 and the corresponding pawl 220 tightly.

5 to 6, the second embodiment of the present invention provides a dose recorder, in this embodiment, the dose recorder of the present invention at least includes a button 100, a cap 200, a bearing 300, a main circuit board 400, an optical The gate 500, the first photo-interrupter 600c, and the second photo-interrupter 600d.

The structure and arrangement of the button 100 , the cap 200 , the bearing 300 , and the main circuit board 400 are the same as those in the first embodiment above, so they will not be repeated in this embodiment. The differences between this embodiment and the first embodiment are described in detail below.

The first photo-interrupter 600c and the second photo-interrupter 600d are disposed on the main circuit board 400 . The main circuit board 400 is provided with a switch 410 electrically connected to the first photointerrupter 600c and the second photointerrupter 600d respectively, and the switch 410 is used to open and close the first photointerrupter 600c and the second photointerrupter 600d.

The optical gate 500 has a disc body 510, on which a plurality of shielding blocks 520c/520d are arranged, and these shielding blocks 520c/520d are arranged in a ring in two rows to form a first grating 502c and a second grating 502d, respectively. A photointerrupter 600c is arranged on the moving path of the first grating 502c, and a second photointerrupter 600d is arranged on the moving path of the second grating 502d. Wherein, the first grating 502c and the second grating 502d are arranged concentrically.

The first photo-interrupter 600c and the second photo-interrupter 600d have the same structure, and each has a light emitter 610c/610d for projecting a light beam and a light emitter 610c/610d for receiving a light beam disposed opposite to the light emitter 610c/610d. Light receivers 620c/620d.

When the user presses the button 100, he can further axially squeeze the push rod 12 through the cap 200 to perform drug injection, and the push rod 12 moves axially and rotates at the same time during the injection. When the user presses the button 100 for injection, the cap 200 moves axially with the push rod 12 and rotates simultaneously, thereby driving the first photo-interrupter 600c and the second photo-interrupter 600d to rotate relative to the optical gate 500 . Moreover, when the user presses the button 100 to inject When firing, press the pin 120 and simultaneously press the switch 410 to activate the first photo-interrupter 600c and the second photo-interrupter 600d.

When the first photointerrupter 600c and the second photointerrupter 600d rotate with the cap 200 relative to the optical gate 500, the first grating 502c and a second grating 502d trigger the first photointerrupter 600c and the second photointerrupter 600c respectively. The photo-interrupter 600d respectively generates a plurality of first blocking signals and a plurality of second blocking signals one by one.

The triggering action of the shielding blocks 520c/520d on the first photo-interrupter 600a is different from the triggering action of the shielding blocks 520 on the second photo-interrupter 600b, and the predetermined difference will be described in detail below. In this embodiment, the shielding block 520c and the gap 501c of the first grating 502c generate the first blocking signal every time the rotation angle T1 is the same as the shielding block 520d and the gap 501d of the second grating 502d generate the second blocking signal every time The angle of rotation T2. However, the shielding blocks 520c/520d of the first grating 502c and the second grating 502d are configured to have an angular deviation, and the deviation angle is not equal to the aforementioned rotation angle T1/T2 or its multiples, thus making the difference between the first blocking signal and the second blocking signal There is a phase difference between them.

The first photointerrupter 600c and the second photointerrupter 600d respectively detect the first grating 502c and the second grating 502d, when the first photointerrupter 600c and the second photointerrupter 600d detect the first interrupting signal When the difference with the second blocking signal is not the predetermined difference, the main circuit board 400 can judge that the signal is lost or rotated in reverse, and further calculate the abnormal first blocking signal and the second blocking signal to obtain Compensating the rotation angle of the cap can also prompt an abnormal message to confirm to the user whether there is an abnormal situation of the reverse button or over-rotation, or to mark the wrong action of the injection dose.

7 to 8, the third embodiment of the present invention provides a dose recorder, in this embodiment, the dose recorder of the present invention at least includes a button 100, a cap 200, a bearing 300, a main circuit board 400, an optical The gate 500, the first photo-interrupter 600e, and the second photo-interrupter 600f.

The structure and arrangement of the button 100 , the cap 200 , the bearing 300 , and the main circuit board 400 are the same as those in the first embodiment above, so they will not be repeated in this embodiment. The differences between this embodiment and the first embodiment are described in detail below.

The first photo-interrupter 600 e and the second photo-interrupter 600 f are disposed on the main circuit board 400 . The main circuit board 400 is provided with a switch 410 electrically connected to the first photointerrupter 600e and the second photointerrupter 600f respectively, and the switch 410 is used to open and close the first photointerrupter 600e and the second photointerrupter 600f.

The optical gate 500 has a disc body 510, on which a plurality of shielding blocks 520e/520f are arranged, and these shielding blocks 520e/520f are arranged in two rings to respectively form a first grating 502e and a second grating 502f, A photointerrupter 600e is arranged on the moving path of the first grating 502e, and a second photointerrupter 600f is arranged on the moving path of the second grating 502f. Wherein, the first grating 502e and the second grating 502f are arranged concentrically.

The first photo-interrupter 600e and the first photo-interrupter 600f have the same structure, and each has a light emitter 610e/610f for projecting a light beam and a light emitter 610e/610f disposed opposite to the light emitter 610e/610f for receiving the light beam. Receiver 620e/620f.

The user presses the button 100 to perform an injection by axially pressing the push rod 12 through the cap 200 , and the push rod 12 moves axially and rotates simultaneously during the injection. When the user presses the button 100 for injection, the cap 200 moves axially with the push rod 12 and rotates simultaneously, thereby driving the first photo-interrupter 600 e and the second photo-interrupter 600 f to rotate relative to the optical gate 500 . Moreover, when the user presses the button 100 for injection, the push pin 120 simultaneously presses the switch 410 to activate the first photo-interrupter 600e and the second photo-interrupter 600f.

When the first photointerrupter 600e and the second photointerrupter 600f rotate with the cap 200 relative to the optical gate 500, the first grating 502e and a second grating 502f trigger the first photointerrupter 600e and the second photointerrupter 600e respectively. The photo-interrupter 600f respectively generates a plurality of first blocking signals and a plurality of second blocking signals one by one.

The triggering action of the shielding blocks 520e/520f on the first photo-interrupter 600e is different from the triggering action of the shielding blocks 520 on the second photo-interrupter 600f, and the predetermined difference will be described in detail below. In this embodiment, the extending angles of the shielding blocks 520e and the gaps 501e of the first grating 502e are different from the extending angles of the shielding blocks 520f and the gaps 501f of the second grating 502f. Therefore, every time the shielding block 520e of the first grating 502e triggers the first photointerrupter 600e to generate the rotation angle T1 of the first blocking signal and the shielding block 520f of the second grating 502f triggers the second photointerrupter 600f to generate The rotation angles T2 of the second blocking signals are different.

The first photointerrupter 600e and the second photointerrupter 600f respectively detect the first grating 502e and the second grating 502f. When the first photointerrupter 600e and the second photointerrupter 600f detect the first interrupting signal and When the difference of the second blocking signal is not the predetermined difference, the main circuit board 400 can judge the signal loss or reverse rotation accordingly, and further calculate the abnormal first blocking signal and the second blocking signal to compensate The rotation angle of the cap can also prompt an abnormal message to confirm to the user whether there is a reverse button or an abnormal situation of excessive rotation.

Referring to FIG. 1 to FIG. 4 and FIG. 9 , the present invention provides a dose recording method, which is used in the aforementioned medicine supply device 10 and implemented by the dose recorder of the aforementioned first to third embodiments. In this embodiment, the dose recorder of the first embodiment is mainly used as an example for illustration, and the dose recording method of the present invention includes the following steps.

First, provide the aforementioned dose recorder in step a, which mainly includes a button 100 and a cap 200 that are pivotally connected to each other and can be rotated relative to each other. The cap 200 is provided with a first photointerrupter 600a and For the second photointerrupter 600b, the button 100 is provided with a plurality of shielding blocks 520 corresponding to the first photointerrupter 600a and the second photointerrupter 600b. When the button 100 and the cap 200 rotate relative to each other, the shielding blocks 520 are respectively Triggering the first photo-interrupter 600a and the second photo-interrupter 600b through the first photo-interrupter 600a and the second photo-interrupter 600b respectively generates a plurality of first blocking signals and a plurality of second blocking signals one by one, And the first blocking signals and the second blocking signals have a predetermined difference.

Specifically, in the first embodiment shown in FIGS. 1 to 4 , the first photo-interrupter 600a and the second photo-interrupter 600b are respectively arranged at specific two places in the single-row shielding block 520 and relative to the rotation center. The angles are arranged so as to cause the first blocking signals and the second blocking signals to have a predetermined phase difference.

However, in the second embodiment shown in FIG. 5 to FIG. 6, the first photointerrupter 600c and the second photointerrupter 600d are respectively arranged on the two rows of shielding blocks 520c/520d, when the button and the cap are rotated relatively The first photo-interrupter 600c and the second photo-interrupter 600d are respectively triggered by the corresponding columns of shielding blocks 520c/520d passing sequentially, thereby causing the first blocking signals and the second blocking signals The signals have a predetermined phase difference. In the third embodiment shown in FIGS. 7 to 8 , the extending angles of the shielding blocks 520e and the gaps 501e of the first grating 502e are different from the extending angles of the shielding blocks 520f and the gaps 501f of the second grating 502f, thereby causing these The rotation angles of each first blocking signal and each second blocking signal generated by the shielding block are different.

Referring to Fig. 1 to Fig. 4 and Fig. 9, following step a, in step b, attach the cap 200 to the push rod 12 of the aforementioned medicine supply device 10, so that there is no relative movement between the cap 200 and the push rod 12, so the medicine The supply device 10 injects and the push rod 12 rotates simultaneously with the cap 200 . Specifically, the aforementioned medicament supply device 10 has an outer cylinder 11 for accommodating medicaments and a push rod 12 pierced in the outer cylinder. The push rod 12 can move axially to output the medicine, and the push rod 12 can move axially while simultaneously Rotate, the cap 200 is connected with the push rod 12 to rotate in conjunction.

When the measured difference between the first blocking signal and the second blocking signal is not a predetermined difference, the abnormally detected first blocking signal and the second blocking signal are calculated to compensate for the rotation angle of the cap. Prompt an abnormal message to confirm to the user whether there is an abnormality of the reverse button or excessive rotation; and Following step b, when the injection is stopped in step c, the rotation angle of the cap is measured according to the number of times of the first blocking signal and the second blocking signal, and then the injection dose of the medicine supply device 10 is converted.

In the dose recording method of the present invention, the first photo-interrupter and the second photo-interrupter respectively generate a first blocking signal and a second blocking signal with a predetermined difference. When the signal is lost or the reverse rotation is caused by improper operation, the difference between the first blocking signal and the second blocking signal will deviate from the predetermined difference, so that the abnormal signal can be judged and the abnormal signal can be compensated to correct the error.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Other equivalent changes using the patent spirit of the present invention shall all fall within the patent scope of the present invention.

10: Drug supply device

11: Outer cylinder

12: putter

100: button

110: shaft

120: Press pin

130: spring

200: cap

200a: Cover

200b: connecting sleeve

200c: frame

210: fixture

220: pawl

300: bearing

400: Main circuit board

410: switch

420: battery

500:Optical gate

501: Gap

502: grating

510: plate body

520: Mask block

530: ratchet

600a: First photointerrupter

600b: Second photointerrupter

610a/610b: Optical Transmitter

620a/620b: optical receiver

Claims (13)

A dose recorder for a medicine supply device, the dose recorder includes: a button; a cap pivotally connected to the button and capable of relative rotation between the button and the cap; a main circuit board arranged on the cap , the main circuit board is provided with a first photointerrupter and a second photointerrupter; and a plurality of shielding blocks are arranged on the button corresponding to the first photointerrupter and the second photointerrupter, wherein , when the button and the cap are rotated relatively, the first photointerrupter and the second photointerrupter are rotated relative to the shielding blocks, and the shielding blocks pass one by one to trigger the first photointerrupter The triggering action of the shielding blocks for the first photo-interrupter and the triggering action of the shielding blocks for the second photo-interrupter have predetermined differences. The dose recorder according to claim 1, wherein the triggering action of the shielding blocks to the first photo-interrupter and the triggering action of the shielding blocks to the second photo-interrupter have a predetermined phase difference. The dose recorder as claimed in item 1, wherein the rotation angle of the first light interrupter triggered by the shielding blocks each time has a predetermined phase with the rotation angle of the second light interrupter triggered by the shielding blocks each time different. The dose recorder as claimed in claim 1 or 2, wherein the shielding blocks are arranged in a circular row to form a grating, and the first photointerrupter and the second photointerrupter are respectively arranged on the moving path of the grating on the second place. The dose recorder according to any one of claims 1 to 3, wherein the shielding blocks are arranged in two rings to form a first grating and a second grating respectively, and the first photointerrupter is arranged on the second grating. On the moving path of a grating, the second photointerrupter is arranged on the moving path of the second grating. The dose recorder according to claim 5, wherein when the button and the cap are rotated relative to each other, the shielding blocks in the first grating pass sequentially to trigger the first light interrupter, the second grating The shielding blocks in the pass through sequentially to trigger the second photointerrupter. A dose recording method for a medicine supply device, the dose recording method comprises the following steps: a) providing a button and a cap which are pivotally connected to each other and can be rotated relative to each other, and a first photointerrupter is arranged on the cap and a second photointerrupter, the button is provided with a plurality of shielding blocks corresponding to the first photointerrupter and the second photointerrupter, and when the button and the cap rotate relative to each other, these shielding blocks respectively pass through The first photo-interrupter and the second photo-interrupter trigger the first photo-interrupter and the second photo-interrupter to respectively generate a plurality of first interruption signals and a plurality of second interruption signals one by one, And there is a predetermined difference between the first blocking signals and the second blocking signals; b) connecting the cap to the medicament supply device and injecting with the medicament supply device while simultaneously driving the cap to rotate, when When it is detected that the difference between the first blocking signal and the second blocking signal is not the predetermined difference, it is judged as abnormal; and c) when the injection is stopped, according to the difference between the first blocking signal and the second blocking signal The number of rotations of the cap is measured to convert the injection dose of the medicament supply device. The dose recording method according to claim 7, wherein the rotation angles of the first blocking signals and the second blocking signals generated by the shielding blocks have predetermined differences. The dose recording method according to claim 7, wherein the first blocking signals and the second blocking signals have a predetermined phase difference. The dose recording method according to claim 7, wherein when the button and the cap are rotated relative to each other, the first photointerrupter and the second photointerrupter are sequentially blocked by the corresponding rows of blocks triggered by. The dose recording method as claimed in item 7, wherein the medicament supply device has an outer cylinder for accommodating the medicament and a push rod passing through the outer cylinder, and the push rod can move axially to output The medicament, and the push rod rotates while moving axially, and the cap is connected to the push rod to rotate in conjunction. The dose recording method as described in claim item 7, wherein step b further includes: when it is detected that the difference between the first blocking signal and the second blocking signal is not the predetermined difference, combining the abnormal first blocking signal with the The second blocking signal is calculated to compensate the rotation angle of the cap. The dose recording method according to claim 7, wherein step b further includes: prompting an abnormal message when the measured difference between the first blocking signal and the second blocking signal is not the predetermined difference.

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