CN212090409U - Quantitative timing administration insulin pump - Google Patents
Quantitative timing administration insulin pump Download PDFInfo
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- CN212090409U CN212090409U CN201922100027.9U CN201922100027U CN212090409U CN 212090409 U CN212090409 U CN 212090409U CN 201922100027 U CN201922100027 U CN 201922100027U CN 212090409 U CN212090409 U CN 212090409U
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- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 title claims abstract description 320
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the field of medical instruments, a quantitative timing dosing insulin pump is disclosed, including insulin injection shell, the bandage of connection on the shell, install the gasbag in the insulin injection shell in proper order, insulin bag and injection piece, the gasbag offsets with the insulin bag, the injection piece can be dismantled with the inner wall of insulin injection shell and be connected, the injection piece includes micro needle and a frame that is used for supporting micro needle, micro needle towards the one end of insulin bag leaves the space with the insulin bag, the other end surpasss insulin injection shell, still be provided with intake pipe, gas tube, air pump and the control unit that can be used for controlling the air pump to open and close regularly on the insulin injection shell; the invention can be fixed on the body of a patient, can inject a fixed amount of insulin at a fixed time and automatically inject the insulin, so that the elderly patients or the patients with limb inconvenience can inject the insulin at fixed time and quantity according to the injection requirement, thereby avoiding the problem of insufficient insulin administration and ensuring the treatment effect of insulin injection.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to ration insulin pump of regularly dosing.
Background
Diabetes is a metabolic disease characterized by hyperglycemia, and in the process of aging, the basal metabolic rate of a human body is gradually reduced, the metabolism of all levels of tissues participating in human activities, particularly muscles, is reduced, and the utilization capacity of the body to glucose is reduced. Diabetes also ensues. Epidemiological investigation in China shows that the prevalence rate of diabetes in the population of 60-65 years old is 10% or more than 10%, and the prevalence rate of diabetes in the population of more than 65 years old reaches 20%, once the disease is got, the life quality of the old is influenced, and the disease is one of the main reasons for disability and death of the old. Insulin is the only hormone in the body which reduces blood sugar, and the supplement of insulin is the main treatment method of diabetes. At present, an insulin syringe is often used for insulin supplementation, but in insulin injection, strict injection requirements are met, and the injection time and the injection dosage need to be strictly carried out according to medical orders. When the injection is carried out, the injection part needs to be disinfected firstly, the needle point is perpendicularly inserted or obliquely inserted according to the condition, and part of patients need to pinch the skin, so that the memory of the old is reduced, the injection time is easy to forget, and meanwhile, the old patients have weak limb strength, are unstable in hand during injection, cannot be administrated according to the injection requirement, cause insufficient administration and influence the injection effect of the insulin therapy.
SUMMERY OF THE UTILITY MODEL
The utility model provides an old people's insulin inconvenient problem of dosing, provide the insulin pump of dosing regularly that can conveniently dose.
The insulin pump for quantitative and timed administration comprises an insulin injection shell and a binding band used for being bound on a human body, wherein the binding band is connected to the shell, the insulin injection shell is a hollow shell, and an air bag, an insulin bag and an injection piece are sequentially arranged in the hollow shell along the direction from one side far away from the human body to one side close to the human body;
the air bag is abutted against the insulin bag, and the insulin bag is an insulin bag capable of generating elastic deformation; the insulin injection shell is provided with an injection port aligned with the opening, sealing treatment is carried out between the opening and the injection port, and the injection port is covered with a rubber cap for sealing the injection port;
the injection piece comprises a plurality of micro needles and a frame for supporting the micro needles, the frame is detachably connected with the inner wall of the insulin injection shell, the micro needles penetrate through the frame, two ends of each micro needle are puncture ends, a gap is reserved between one end facing the insulin bag and the insulin bag, and the other end of each micro needle extends out of the insulin injection shell;
the insulin injection shell is also provided with an air inlet pipe, an air inflation pipe, an air pump and a control unit for controlling the timing opening and closing of the air pump;
the outer wall of the insulin injection shell is provided with an air hole, the air hole is communicated with the air inlet end of the air pump through the air inlet pipe, and the air outlet end of the air pump is communicated with the air bag through the inflation pipe.
Furthermore, the tail end of the binding band is provided with magic tapes which are mutually matched and connected.
Furthermore, a display screen for displaying data is arranged on the surface of the insulin injection shell.
Further, an input key for inputting is arranged on the insulin injection shell.
Furthermore, a part of the insulin injection shell is a panel which is detachably connected, the injection port is positioned on the panel, and the insulin bag is detachably connected with the panel.
Further, be connected with under the panel and be used for the centre gripping the square frame of insulin bag, be equipped with the recess on the lateral wall of square frame, the relevant position on the insulin injection casing inner wall be equipped with recess complex is protruding stupefied.
Furthermore, the frame is a box body with an opening on one surface, the box body is divided into a peripheral wall with four surfaces, a bottom surface with one surface and a bracket connected with the peripheral wall, and the micro needle is arranged on the bracket; the bottom surface is partially or completely made of rubber sheets, a gap is reserved between one end of the micro needle facing the bottom surface and the rubber sheets, a gap is reserved between the peripheral wall and the insulin injection shell, and the air inlet pipe is communicated with the inner space of the injection piece.
Furthermore, an air inlet is formed in the peripheral wall, and an air filtering membrane capable of filtering air is covered on the air inlet.
The user fixes the device on the arm by using the binding band, the micro needle penetrates into the epidermis of the human body, the control unit starts the air pump to inflate the air bag at regular time, the air bag extrudes the insulin bag, the micro needle penetrates into the insulin bag, insulin enters the human body through the micro needle, after a certain time, the control unit closes the air pump, the insulin bag recovers, and the injection is finished; the infusion amount of the insulin is controlled by controlling the on-off time interval of the air pump, so that the quantitative injection effect is achieved; the scheme enables a user to inject insulin with fixed quantity at fixed time at any time and any place, even if the old patient or the patient with limb inconvenience can also inject the insulin according to the injection requirement at regular time and quantity, avoids the problem of insufficient insulin administration, and ensures the treatment effect of insulin injection.
Drawings
FIG. 1 is a schematic external view of a pump for quantitatively and regularly administering insulin according to embodiment 1 of the present invention;
FIG. 2 is a top view of a pump for quantitatively and regularly administering insulin in example 1 of the present invention;
FIG. 3 is a cross-sectional view of a pump for quantitatively and regularly administering insulin in example 1 of the present invention;
fig. 4 is a schematic view of an insulin bag and an insulin bag holder according to embodiment 2 of the present invention;
FIG. 5 is a cross-sectional view of a pump for quantitatively and regularly administering insulin in example 2 of the present invention;
FIG. 6 is an enlarged view at B in FIG. 5;
fig. 7 is a schematic view of a pump for quantitatively and periodically administering insulin with the rubber sheet in fig. 5 in a contracted state.
The reference numerals include: the insulin injection device comprises an insulin injection shell 1, a binding band 2, an injection port 11, a rubber cap 12, a panel 13, a square frame 14, a magic tape 21, an insulin bag 3, an air bag 4, an air pump 5, an injection piece 6, a frame 61, a rubber sheet 62, a bracket 63, a micro needle 7, an input key 8 and a display screen 9.
Detailed Description
Example 1:
as shown in figure 1, ration timing insulin pump of dosing, including insulin injection casing 1 and connect bandage 2 on the casing both sides, bandage 2 is long 15 centimetres, is equipped with magic subsides 21 of mutually supporting at bandage 2 end, uses bandage 2 can fix ration timing insulin pump of dosing on the arm and use, can also increase the extension area simultaneously, makes it to wear and uses at human belly.
As shown in fig. 2 and 3, the insulin injection housing 1 is a hollow square shell, and an air bag 4, an insulin bag 3 and an injection member 6 are sequentially installed in the hollow square shell along a direction from a side far away from a human body to a side close to the human body. As shown in the figure, the air bag 4 in this embodiment is a closed chamber enclosed by an elastic material layer fixed in the insulin injection housing 1, and in this embodiment, the elastic material layer is made of rubber. When the air bag 4 is inflated, the rubber can deform and is abutted against the insulin bag 3. The insulin bag 3 is made of rubber and can be deformed, and the capacity of the insulin bag 3 is generally 3ml, namely the capacity of one dose of insulin during production. When the air bag 4 is inflated, the rubber bulges in the direction of the insulin bag 3, and applies pressure to the insulin bag 3 to deform it. The side of the insulin bag 3 is provided with an opening, the insulin injection shell 1 is provided with an injection port 11 aligned with the opening, and the opening and the injection port 11 are sealed. The injection port 11 is plugged with a rubber cap 12, the rubber cap 12 is in interference connection with the injection port 11, and the rubber cap 12 can perform good sealing on the injection port 11. Insulin is injected into the insulin bag 3 after the rubber cap is pierced by the syringe needle, and the rubber cap 12 can be replaced after use.
An injection piece 6 is detachably connected to the other side of the insulin bag 3, namely the side of the insulin injection housing 1 close to the skin. The injection member 6 includes the micro needles 7 and a frame 61 for supporting the micro needles 7, and the frame 61 is fixed to the inner wall of the insulin injection housing 1 to be snap-coupled with the insulin injection housing 1.
The utility model discloses a micro needle be hollow micro needle, can pierce human epidermis and make a plurality of micro-fine pipelines, and the diameter of general micro needle is between 0.07mm to 0.2mm, and length is generally between 0.2mm to 2mm, the utility model discloses a micro needle 7 diameter be 0.1mm, and the needle is long 0.5mm, and the effect of insulin injection can be guaranteed to its size. The micro needles 7 penetrate through the frame 61, both ends of each micro needle 7 are puncture ends, the middle parts of the micro needles 7 are fixed on the frame 61, a gap is reserved between one end of each micro needle 7 facing the insulin bag and the insulin bag 3, one end of each micro needle 7 facing the insulin bag 3 can be inserted into the insulin bag 3, and one end of each micro needle 7 close to the human epidermis exceeds the insulin injection shell 1 and can be punctured into the human epidermis.
The insulin injection shell 1 is also provided with an air inlet pipe, an air inflation pipe, an air pump 5 and a control unit which can be used for controlling the timing opening and closing of the air pump 5; the outer wall of the insulin injection shell 1 is provided with an air hole which is communicated with the air inlet end of the air pump 5 through an air inlet pipe, and the air outlet end of the air pump 5 is communicated with the air bag 4 through an air charging pipe. The insulin injection shell body 1 is provided with an input key 8 for inputting, the input key 8 is electrically connected with the control unit and can input the time and the dosage of insulin injection to the control unit, the surface of the insulin injection shell body 1 is provided with a display screen 9 for displaying data, and the display screen 9 is electrically connected with the control unit.
The air pump 5 adopts a miniature air pump, such as a YB370-27TPM type air pump which is commonly used in an electronic sphygmomanometer.
The control unit in this embodiment uses the MCU chip as the core, and the STM32H7 chip is adopted to this embodiment, realizes through the programming the utility model discloses well each item function of control unit, this type of programming are the common technological means of technical staff in the field, do not do here and describe repeatedly. The base pin of the MCU is electrically connected with a switch circuit of the air pump 5, and the power supply of the air pump 5 is controlled to be turned on or off by sending an electric signal.
The device is tied on the arm of the user, the micro needle penetrates into the epidermis of the human body, and then the time and the dosage of insulin injection are adjusted through the input key 8. And after the setting is finished. When the time reaches the time of insulin infusion, the control unit sends an electric signal to control the air pump 5 to be started, the air pump 5 pumps outside air through the air inlet pipe, the pumped air flows to the air bag 4 through the air inflation pipe, the air bag 4 extrudes the insulin bag 3 after being inflated, the micro needle 7 pierces the insulin bag 3, and the insulin enters the skin of a human body through the micro needle 7. After injection, the control unit sends an electric signal to control the air pump 5 to be closed and stop inflating the air bag 4. The longer the air pump 5 is inflated, the more the air bag 4 is inflated with air, the larger the deformation amount of the insulin bag 3 is, and the more insulin is injected. The injection amount of insulin is controlled by controlling the on-off time interval of the air pump 5.
After one insulin injection is completed, counting is performed, a signal that one insulin injection has been performed is input to the display screen 9, and the display screen 9 displays the number of times of insulin injections. Then when the second insulin injection time is up, the control unit sends an electric signal to control the air pump 5 to be started, the first operation is repeated, insulin enters the human body through the micro needle 7, and when all the insulin in the insulin bag 3 is injected, the detachable injection piece 6 can be replaced.
Example 2:
the present embodiment is different from the previous embodiment in that: first, the insulin bag 3 can be replaced. The part on the insulin injection shell 1 is a panel 13 which is detachably connected, the injection port 11 is positioned on the panel 13, the insulin bag 3 is detachably connected with the panel 13, a mounting ring is arranged on the insulin bag 3 and is made of rubber, and the mounting ring is in interference connection with the injection port 11 to keep air tightness. Because the characteristic of the 3 materials of insulin bag, easily produce deformation when putting into, can not accurately aim at the opening on the insulin injection casing 1, consequently, for convenient change, as shown in fig. 4, be connected with square frame 14 under panel 13, panel 13 and square frame 14 form the insulin bag jointly and hold in the palm, square frame 14 can clip insulin bag 3, as shown in fig. 6, be equipped with the recess on square frame 14's the lateral wall, relevant position on insulin injection casing 1 inside wall is equipped with protruding stupefied, protruding stupefied and recess mutually support, square frame 14 moves along protruding stupefied, make insulin bag 3 can directly conveniently get into in the insulin injection casing 1.
Next, as shown in fig. 5, the frame 61 is a box body with an opening on one side, the box body is divided into a four-side peripheral wall, a bottom surface and a bracket 63 connected to the peripheral wall, the peripheral wall on the side is detachably connected to the insulin injection housing 1, a gap is left between the peripheral wall on the side and the insulin injection housing 1, and the micro needle 7 is mounted on the bracket 63;
the bottom surface has a circular portion formed as a rubber sheet 62, and the rubber sheet 62 is a thin sheet. The end of the microneedle 7 facing the bottom surface is spaced from the rubber sheet 62, and the microneedle 7 can penetrate the rubber sheet 62. A gap is left between the peripheral wall and the insulin injection housing 1 so that air can enter. The peripheral wall is provided with an air inlet, and the air inlet is covered with an air filtering membrane capable of filtering air. The air filtering membrane is made of PVDF, the aperture of the air filtering membrane is 0.2 mu m, bacteria, viruses and particles in the air can be filtered, and the cleanness of the air entering the injection piece 6 is ensured.
The air inlet pipe is communicated with the inner space of the injection piece 6, a small hole is arranged on the side edge of the insulin injection shell 1, and the air inlet pipe is connected with the small hole. During operation, the control unit sends an electric signal, the control air pump 5 is opened, the air pump 5 pumps the gas in the frame box body in the injection part 6, and the gap between the peripheral wall and the insulin injection shell body 1 is small, and the air filtering membrane blocks the gap, so that the air outlet speed in the frame box body can be faster than the air inlet speed without intentionally improving the power of the air pump, the air pressure in the frame box body is smaller than the atmospheric pressure, and negative pressure is formed in the frame box body more easily. Because negative pressure is formed and the rubber sheet 62 is tightly attached to the epidermis of the human body when the device is bound on the human body, the rubber sheet 62 is deformed into the frame box body under the action of external atmospheric pressure, and meanwhile, the skin moves along with the rubber sheet 62. As shown in figure 7, after the rubber sheet 62 is deformed into the frame box body, the micro-needle 7 pierces the rubber sheet 62 and also pierces the skin of the human body, insulin enters the human body through the micro-needle 7, after the air pump is closed, air returns into the injection part 6, the rubber sheet 62 and the skin are both restored to the original state, and the micro-needle 7 exits from the human body.
In other embodiments, there is no gap between the peripheral wall and the insulin injection housing 1, when the air pump 5 sucks air, the air in the housing 61 is sucked into the air bag 4 to form a negative pressure, and the negative pressure is large, which causes the rubber sheet 62 to deform too much into the housing, the micro-needle 7 is exposed more, the micro-needle penetrates deeper into the body, the puncturing effect is better, but the pain of the user is easily caused.
In this embodiment, the rubber sheet is adopted, so that the micro needle 7 does not need to continuously penetrate into the human body, only the skin of the human body needs to be penetrated when injecting insulin, the micro needle 7 is prevented from being separated in the process of penetrating into the human body, and meanwhile, when the micro needle 7 exits the human body, the rubber sheet 62 can prevent the human body from mistakenly contacting with the micro needle to damage the needle point of the micro needle 7.
Example 3:
in embodiment 3, the insulin pump for quantitative and timed administration further comprises an optical heart rate sensor for detecting the heart rate, and the optical heart rate sensor is positioned on the side of the bandage 2 facing the human body. The optical heart rate sensor is electrically connected with the power supply and comprises a green LED lamp and a photosensitive sensor. When the LED light is emitted to the skin, the light reflected back through the skin tissue is received by the photosensitive sensor and converted into an electric signal, the electric signal is converted into a digital signal through AD, the absorption of the artery to the light is changed, but the absorption of other tissues to the light is basically unchanged, the frequency of the artery pulsation is calculated by utilizing a photoplethysmography (PPG), a person skilled in the art can know a specific calculation method, the detailed description is omitted, the heartbeat frequency is obtained according to the frequency of the artery pulsation, and then the heartbeat frequency is displayed on the display screen 9. This function can be implemented on the arm, but not on the abdomen.
The quantitative and timed insulin administration pump also comprises a blood pressure measuring device, and the blood pressure measuring device measures the blood pressure by an oscillometric indirect measuring method. When measuring blood pressure, pressure is applied to the arm to inflate the band 2, so a separate air passage is required. Therefore, the blood pressure measuring device comprises a blood pressure exhaust tube, a blood pressure air bag 4, a blood pressure inflation tube, an electronic control exhaust valve and a pneumatic pressure sensor. One end of the blood pressure exhaust tube is communicated with the outside, the other end of the blood pressure exhaust tube is communicated with the air inlet end of the air pump 5 through a first three-way valve, the other end of the first three-way valve is communicated with an air inlet tube, the air inflation end of the air pump 5 is communicated with the blood pressure inflation tube through a second three-way valve, the other end of the second three-way valve is communicated with the inflation tube, and the blood pressure inflation tube is connected with the blood pressure air bag. The blood pressure air bag 4 is arranged in the bandage 2, and the electronic control exhaust valve is arranged on the outer side of the bandage 2 and communicated with the blood pressure air bag 4. The first three-way valve, the second three-way valve and the electronic control exhaust valve are controlled by the control unit, and the air pressure sensor is arranged on the inner side of the bandage 2, namely, one side attached to a human body. The blood pressure measuring device is started, the air pump 5 inflates the blood pressure air bag 4 through the blood pressure inflation tube, the air pressure sensor receives pressure, the exhaust valve is controlled electronically to exhaust, the air pressure sensor generates changes, the blood pressure of a user can be obtained by using the MWI technology, and then the blood pressure is displayed on the display screen 9.
The functions of this embodiment can be performed on the arms and not on the abdomen.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (8)
1. The insulin pump for quantitative and timed administration comprises an insulin injection shell and a binding band used for being bound on a human body, wherein the binding band is connected on the shell, and the insulin pump is characterized in that the insulin injection shell is a hollow shell, and an air bag, an insulin bag and an injection piece are sequentially arranged in the hollow shell along the direction from one side far away from the human body to one side close to the human body;
the air bag is abutted against the insulin bag, and the insulin bag is an insulin bag capable of generating elastic deformation; the insulin injection shell is provided with an injection port aligned with the opening, sealing treatment is carried out between the opening and the injection port, and the injection port is covered with a rubber cap for sealing the injection port;
the injection piece comprises a plurality of micro needles and a frame for supporting the micro needles, the frame is detachably connected with the inner wall of the insulin injection shell, the micro needles penetrate through the frame, two ends of each micro needle are puncture ends, a gap is reserved between one end facing the insulin bag and the insulin bag, and the other end of each micro needle extends out of the insulin injection shell;
the insulin injection shell is also provided with an air inlet pipe, an air inflation pipe, an air pump and a control unit for controlling the timing opening and closing of the air pump;
the outer wall of the insulin injection shell is provided with an air hole, the air hole is communicated with the air inlet end of the air pump through the air inlet pipe, and the air outlet end of the air pump is communicated with the air bag through the inflation pipe.
2. The insulin pump for quantitative and timed administration according to claim 1, wherein the end of said binding band is provided with magic tapes which are mutually connected in a matching way.
3. The insulin pump for quantitative and timed administration according to claim 1, wherein a display screen for displaying data is provided on the surface of the insulin injection housing.
4. The insulin pump for quantitative and timed administration according to claim 1, wherein the insulin injection housing is provided with input keys for input.
5. The insulin pump for quantitative and timed administration according to claim 1, characterized in that a portion of said insulin injection housing is a detachably connected panel, said injection port is located on said panel, and said insulin bag is detachably connected to said panel.
6. The insulin pump for quantitative and timed administration according to claim 5, characterized in that a square frame for holding the insulin bag is connected under the panel, a groove is arranged on the side wall of the square frame, and a convex edge matched with the groove is arranged at the corresponding position on the inner side wall of the insulin injection casing.
7. The pump of claim 1, wherein the frame is a box with an opening on one side, the box is divided into a four-side wall, a bottom and a bracket connected to the wall, the micro needle is mounted on the bracket; the bottom surface is partially or completely made of rubber sheets, a gap is reserved between one end of the micro needle facing the bottom surface and the rubber sheets, a gap is reserved between the peripheral wall and the insulin injection shell, and the air inlet pipe is communicated with the inner space of the injection piece.
8. The pump according to claim 7, wherein said peripheral wall has an air inlet covered with an air filter membrane for filtering air.
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CN201922100027.9U CN212090409U (en) | 2019-11-29 | 2019-11-29 | Quantitative timing administration insulin pump |
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CN201922100027.9U CN212090409U (en) | 2019-11-29 | 2019-11-29 | Quantitative timing administration insulin pump |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110721364A (en) * | 2019-11-29 | 2020-01-24 | 安徽宏宇五洲医疗器械股份有限公司 | metered dose insulin pump |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110721364A (en) * | 2019-11-29 | 2020-01-24 | 安徽宏宇五洲医疗器械股份有限公司 | metered dose insulin pump |
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