WO2017096510A1

WO2017096510A1 - Injection dosage detection device and injection apparatus comprising same

Info

Publication number: WO2017096510A1
Application number: PCT/CN2015/096574
Authority: WO
Inventors: 比丽尔·理查德·珍·玛丽
Original assignee: 创新精密仪器有限公司
Priority date: 2015-12-07
Filing date: 2015-12-07
Publication date: 2017-06-15
Also published as: CN106823066B; CN106823066A

Abstract

An injection dosage detection device, comprising: a housing (110); a button (120) connected to the housing (110); a control circuit (130) comprising a limit switch (132) and a rotary encoder (134) electrically connected to the limit switch (132); a rotation module (140) rotatably connected to the rotary encoder (134); and a connection unit (150) used for connecting the rotation module (140) to an injection dosage adjustment knob (210) of an injection pen (200). When the button (120) is pressed, the limit switch (132) is triggered to drive the rotary encoder (134) to start detecting the amount of rotation of the injection dosage adjustment knob (210); when the button (120) is not pressed, the limit switch (132) is not triggered and the rotary encoder (134) stops detecting the amount of rotation of the injection dosage adjustment knob (210); the control circuit (130) further generates an injection dosage message according to the amount of rotation of the injection dosage adjustment knob (210) detected by the rotary encoder (134).

Description

Injection dose detecting device and injection device including the same

Technical field

The invention relates to an injection dose detecting device and an injection device, in particular to an injection dose detecting device and an injection device capable of improving detection accuracy.

Background technique

Various types of injection pens have been developed to facilitate the user's ability to inject drugs on their own. In general, the injection pen has an injection dose adjustment knob and an injection unit. The injection dose adjustment knob is used to adjust and set the injection dose. The injection unit is configured to perform an injection according to an injection dose set by the injection dose adjustment knob. For example, the injection unit can include a piston for pushing the drug out of the needle for injection. When the injection dose adjustment knob is rotated to a predetermined scale, the movement stroke of the piston is set. When the user presses the injection dose adjustment knob, the injection dose adjustment knob rotates and lowers the lower pressure piston to a predetermined position, thereby completing the injection.

Although the prior art injection pen can adjust the injection dose, it is impossible to record the injection information such as the injection time, the injection dose, and the number of injections. In order to record the injection information of the injection pen, the prior art uses the detection device to detect the movement stroke of the piston. However, the detection device is complicated in installation and use, and is prone to detection errors. The prior art detecting device cannot accurately and conveniently detect and record the injection information of the injection pen.

Summary of the invention

It is an object of the present invention to provide an injection dose detecting device and an injection device which can improve the detection accuracy to solve the problems in the prior art.

The invention discloses an injection dose detecting device, which comprises a casing, a button, a control circuit, a rotating module, and an adapter unit. The button is coupled to the housing. The control circuit is disposed in the housing, the control circuit includes a limit switch, and a rotary encoder is electrically connected to the limit switch. The rotating module is rotatably coupled to the rotary encoder. The switching unit is configured to connect the rotating module to an injection dose adjustment knob of an injection pen to rotate the rotation module synchronously with the injection dose adjustment knob. Wherein, when the button is pressed, the limit switch is activated to drive the rotary encoder to start detecting the amount of rotation of the injection dose adjustment knob; when the button is not pressed, the limit switch is not touched and the rotation code is Stop detecting the injection dose adjustment knob The amount of rotation; the control circuit further generates an injection dose message according to the amount of rotation of the injection dose adjustment knob detected by the rotary encoder.

In an embodiment of the invention, the injection dose detecting device further includes an energy storage unit disposed between the button and the limit switch for supplying power to the control circuit.

In an embodiment of the invention, the energy storage unit includes an elastic support component abutting the control circuit for supporting the energy storage unit to provide a gap between the energy storage unit and the limit switch.

In an embodiment of the invention, the button is activated by the energy storage unit when pressed.

In an embodiment of the invention, the injection dose detecting device further includes a resilient component disposed between the rotating module and the switching unit.

In an embodiment of the invention, the resilient assembly is uncompressed when the button is not depressed; the resilient assembly is compressed when the button is depressed.

In an embodiment of the invention, the housing, the button and the control circuit do not rotate with the injection dose adjustment knob.

In an embodiment of the invention, the injection dose detecting device further includes a light guiding component disposed on one side of the control circuit for guiding the state light of the control circuit to the outside of the housing.

In an embodiment of the invention, the control circuit further includes a transmission unit for transmitting the injection dose message to an external electronic device.

The invention also discloses an injection device, comprising the injection dose detecting device according to any of the above embodiments, and an injection pen; the injection pen includes an injection dose adjustment knob connected to the adapter unit for setting an injection The dose, and an injection unit for injecting according to the injected dose set by the injection dose adjustment knob.

Compared with the prior art, the invention has the beneficial effects that the injection dose detecting device of the invention detects the injection dose of the injection unit according to the rotation amount of the injection dose adjustment knob, so that the detection of the injection dose detecting device of the invention is accurate The degree is higher, and the injection dose detecting device of the invention is simpler to install and use, thereby improving the convenience in use.

DRAWINGS

1 is a schematic view of an injection device according to an embodiment of the present invention;

2 is a cross-sectional view of an injection dose detecting device according to an embodiment of the present invention;

3 is an exploded view of an injection dose detecting device disclosed in an embodiment of the present invention.

Symbol Description:

10, injection device; 100, injection dose detecting device; 110, housing; 112, cover; 114, light guide assembly; 120, button; 130, control circuit; 132, limit switch; 134, rotary encoder; , rotating module; 142, rotating shaft; 144, connecting shaft; 146, screw; 148, ball pin; 150, adapter unit; 152, screw; 160, energy storage unit; 162, elastic support assembly; 170, elastic component 200, injection pen; 210, injection dose adjustment knob; 220, injection unit

detailed description

To facilitate the understanding of the technical solutions and advantageous effects of the present invention, the specific embodiments are described below with reference to the accompanying drawings.

Please refer to FIG. 1: FIG. 1 is a schematic diagram of an injection device according to an embodiment of the present invention. As shown in FIG. 1, the injection device 10 of the present invention comprises an injection dose detecting device 100 and an injection pen 200. The injection pen 200 includes an injection dose adjustment knob 210 and an injection unit 220. The injection dose adjustment knob 210 is used to adjust and set an injection dose. The injection unit 220 is configured to perform injection according to the injection dose set by the injection dose adjustment knob 210. The injection dose detecting device 100 can be connected to the injection dose adjusting knob 210 of the injection pen 200 for detecting and recording the injection information of the injection pen according to the rotation amount of the injection dose adjustment knob 210, such as the injection dose, the injection time, and the number of injections. Wait for the message.

Please refer to FIG. 2 and FIG. 3 at the same time, and refer to FIG. 1 together. 2 is a cross-sectional view of an injection dose detecting device according to an embodiment of the present invention, and FIG. 3 is an exploded view of the injected dose detecting device disclosed in an embodiment of the present invention. As shown in FIG. 2-3, the injection dose detecting device 100 of the present invention comprises a housing 110, a cover 112, a button 120, a control circuit 130, a rotation module 140, an adapter unit 150, and an energy storage device. Unit 160. The cover 112 is coupled to the housing 110 to form an accommodation space. The button 120 is coupled to the housing 110 via the cover 112. The control circuit 130 is disposed within the housing 110. Control circuit 130 includes a limit switch 132 and a rotary encoder 134 is electrically coupled to limit switch 132. When the limit switch 132 is activated, the rotary encoder 134 begins to operate; and when the limit switch 132 When not touched, the rotary encoder 134 stops operating. An energy storage unit 160 (eg, a rechargeable battery) is disposed between the button 120 and the limit switch to provide power to the control circuit 130. In addition, the energy storage unit 160 includes a resilient support assembly 162 abutting the recess 136 of the control circuit 130 for supporting the energy storage unit 160 to provide a gap between the energy storage unit 160 and the limit switch 132.

The rotation module 140 is rotatably coupled to the rotary encoder 134. In the embodiment of the present invention, the rotating module 140 includes a rotating shaft 142, a connecting shaft 144 and a screw 146. The rotating shaft 142 is coupled to the rotary encoder 134. A screw 146 fixes the connecting shaft 144 to the rotating shaft 142. In addition, the rotating shaft 142 is rotatably fixed to the housing 110 by the ball stud 148. As such, the rotation module 140 is rotatable relative to the rotary encoder 134, and the rotary encoder 134 can detect the amount of rotation of the rotation module 140. The configuration of the rotating module 140 in FIGS. 2 and 3 is merely illustrative. In other embodiments of the present invention, the rotating module 140 may have different components, structures, and fixing mechanisms.

One end of the adapter unit 150 is coupled to the rotation module 140 via a screw 152, and the other end of the adapter unit 150 may be directly or indirectly connected to the injection dose adjustment knob 210 of the injection pen 200. As such, when the injection dose adjustment knob 210 is rotated, the rotation module 140 will rotate synchronously with the injection dose adjustment knob 210.

In addition, the injection dose detecting device further includes a resilient component 170 disposed between the rotating module 140 and the switching unit 150. When the button 120 is not pressed, the elastic component 170 is not compressed, and the two ends of the elastic component 170 respectively abut the rotation module 140 and the adapter unit 150, so that there is a gap between the bottom of the rotation module 140 and the injection dose adjustment knob 210. When the button 120 is pressed, the elastic component 170 is compressed, and the rotation module 140 is moved downward relative to the adapter unit 150, so that the bottom of the rotation module 140 is pressed against the injection dose adjustment knob 210, thereby driving the injection dose adjustment knob. 210 rotates and descends relative to the injection unit 220.

According to the above configuration, when the user applies a force to press the button 120, the energy storage unit 160 is first depressed to touch the limit switch 132 of the control circuit 130, thereby driving the rotary encoder 134 to start detecting the rotation amount of the rotation module 140, The rotation module 140 rotates synchronously with the injection dose adjustment knob 210, so the rotation amount of the rotation module 140 is equivalent to the rotation amount of the injection dose adjustment knob 210. The user's power is transmitted to the rotation module 140 to compress the elastic assembly 170. The rotation module 140 is further moved downward relative to the adapter unit 150 such that the bottom of the rotation module 140 abuts against the injection dose adjustment knob 210, thereby driving the injection dose adjustment knob 210 to rotate and descend relative to the injection unit 220. When the injection dose adjustment knob is rotated and lowered relative to the injection unit 220, the injection unit 220 will default to The dose of the drug is pushed out of the needle for injection. At this time, the rotary encoder 134 can obtain the amount of rotation of the injection dose adjustment knob 210 by detecting the amount of rotation of the rotation module 140. On the other hand, when the injection dose adjustment knob 210 is rotated, the housing 110, the button 120, and the control circuit 130 do not rotate with the injection dose adjustment knob 210.

When the injection is completed, the user no longer applies force to press the button 120. At this time, the elastic component 170 lifts the rotation module 140 so that there is a gap between the bottom of the rotation module 140 and the injection dose adjustment knob 210. Moreover, the elastic support assembly 162 of the energy storage unit 160 also raises the energy storage unit 160 so that the energy storage unit 160 no longer touches the limit switch 132, thereby causing the rotary encoder 134 to stop detecting the amount of rotation. The control circuit 130 can further generate an injection dose message based on the amount of rotation of the injection dose adjustment knob 210 detected by the rotary encoder 134. Since the injection dose detecting device 100 of the present invention detects the injection dose of the injection unit 220 according to the rotation amount of the injection dose adjustment knob 210, the injection dose of the injection unit is detected according to the movement stroke of the piston by the prior art detection device. The injection dose detecting device 100 of the invention has a high precision.

In addition, in addition to the injection dose message, the control circuit 130 can also obtain information such as the injection time and the number of injections according to the touch time and the number of touches of the limit switch 130. The control circuit 130 can further store the above injection message in the memory. Furthermore, the control circuit 130 can further include a transmission unit for transmitting the injection message to an external electronic device. For example, the control circuit 130 may further include a port or a wireless communication module to transmit the injection message to the external electronic device in a wired or wireless manner to facilitate the user or the doctor to manage the injection message.

On the other hand, the injection dose detecting device 100 of the present invention may further comprise a light guiding component 114 disposed on one side of the control circuit 130 for guiding the state light of the control circuit 130 to the outside of the housing 110 to display a status message. (For example, the detection start status is displayed).

Compared with the prior art, the injection dose detecting device disclosed in the present invention detects the injection dose of the injection unit according to the rotation amount of the injection dose adjustment knob, and therefore the detection accuracy of the injection dose detecting device of the present invention is high. Furthermore, the injection dose detecting device of the present invention is simpler to install and use, thereby improving the convenience in use.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An injection dose detecting device, comprising:

a housing

a button connected to the housing;

A control circuit is disposed in the housing, and the control circuit includes:

a limit switch;

a rotary encoder electrically connected to the limit switch;

a rotary module rotatably coupled to the rotary encoder;

An switching unit for connecting the rotating module to an injection dose adjustment knob of an injection pen to rotate the rotation module synchronously with the injection dose adjustment knob;

Wherein, when the button is pressed, the limit switch is activated to drive the rotary encoder to start detecting the amount of rotation of the injection dose adjustment knob; when the button is not pressed, the limit switch is not Being activated and the rotary encoder stops detecting the amount of rotation of the injection dose adjustment knob; the control circuit further generates an injection dose message according to the rotation amount of the injection dose adjustment knob detected by the rotary encoder .
The injection dose detecting device according to claim 1, further comprising an energy storage unit disposed between the button and the limit switch for supplying power to the control circuit.
The injection dose detecting device according to claim 2, wherein said energy storage unit comprises an elastic support assembly abutting said control circuit for supporting said energy storage unit to enable said energy storage There is a gap between the unit and the limit switch.
The injection dose detecting device according to claim 2, wherein said button is said to activate said limit switch via said energy storage unit when pressed.
The injection dose detecting device according to claim 1, further comprising an elastic component disposed between the rotation module and the adapter unit.
The injection dose detecting device according to claim 5, wherein said elastic member is not compressed when said button is not pressed; and said elastic member is compressed when said button is pressed.
The injection dose detecting device according to claim 1, wherein said housing, the button and the control circuit do not rotate with said injection dose adjustment knob.
The injection dose detecting device according to claim 1, further comprising a light guiding component disposed on one side of the control circuit for guiding the state light of the control circuit to Outside the housing.
The injection dose detecting device according to claim 1, wherein said control circuit further comprises a transmission unit for transmitting said injection dose message to an external electronic device.
An injection device, comprising:

An injection dose detecting device according to any one of claims 1-9;

An injection pen, the injection pen comprising:

An injection dose adjustment knob is coupled to the adapter unit for setting an injection dose;

An injection unit is configured to perform injection according to the injection dose set by the injection dose adjustment knob.