CN211705500U - High-precision insulin syringe - Google Patents

Abstract

The utility model discloses a high-precision insulin syringe, which relates to the technical field of medical equipment. The main points of the technical solution are: an injection needle and an injection syringe, and the injection syringe is provided with a scale line representing the dose of medicine; the scale line includes a long measuring line , short metering line and longitudinal metering connecting line, the distance between two adjacent short metering lines is 1 international unit drug dose, and the distance between two adjacent long metering lines is 5 international unit drug doses; the outer wall of the injection syringe A pressurized injection cylinder is sleeved; an injection push rod is arranged in the pressurized injection cylinder; a pressurized thread is set on the injection push rod sleeve; a rubber sealing piston is provided at the end of the injection push rod; The end is provided with a rotary pressurizing handle; the end of the pressurizing injection barrel is provided with a rotating wedge-shaped scale movably connected with the outer wall of the injection barrel. It can directly read the IU dose of the drawn insulin injection; at the same time, it can also accurately absorb the smaller IU dose of insulin injection.

Description

A high-precision insulin syringe

technical field

The utility model relates to the technical field of medical instruments, in particular to a high-precision insulin syringe.

Background technique

Diabetes is one of the most common diseases in endocrinology. With the continuous improvement of people's living standards, the incidence of diabetes is on the rise. According to statistics, there are nearly 40 million people with diabetes in my country. Studies have shown that early insulin injection is beneficial to protect the function of islet beta cells and prevent complications. Therefore, the most important means of treating diabetes is insulin injection. Intensive treatment through insulin injection can make the patient's blood sugar, blood lipid, blood pressure and BMI fully meet the target. At the same time, the injection of insulin to control blood sugar not only has a stable effect, but also does not cause damage to the liver and kidney organs. Therefore, more and more diabetic patients use insulin in recent years. Currently, Novolin biosynthetic insulin injections used in hospitals are usually equipped with dedicated insulin pen injectors. Insulin syringe is a common medical device, mainly used to inject insulin drugs into the patient's body to obtain the corresponding therapeutic effect.

At present, the insulin syringes on the market are divided into one milliliter sterile syringe empty needles and insulin pen syringes matched with insulin injections. One milliliter sterile syringe empty needle is the traditional form of drug delivery by negative pressure suction; the insulin pen injector matched with insulin injection is used for insulin injection through a refill and an injection pen with an insulin pen injector.

In the prior art, when using an insulin pen injector, one person, a pen and a refill are required to use with the insulin pen, but after the operation period, the patient does not need insulin to control blood sugar, so the insulin pen injector and its refill are scrapped, as Unnecessary financial burden for patients; if the same refill is used by multiple patients, it will increase the risk of cross-infection; a one-ml syringe is used to make the liquid volume in milliliters, and each time you draw regular insulin according to the patient The blood sugar level is instructed by the doctor to convert the insulin unit for aspiration. Due to the current replacement of ordinary insulin, the unit dose conversion is complicated, and the empty needle in milliliters is no longer suitable for accurate dose aspiration of ordinary insulin. Misreading can easily lead to medical malpractice and bring certain pressure to clinical nursing workers.

Utility model content

The purpose of this utility model is to provide a high-precision insulin syringe, which can directly read the IU dose of the drawn insulin injection, so as to avoid the need to compare the volume of the injection and the IU dose by using a common syringe to draw the insulin injection. The process of complex conversion; at the same time, it can also accurately absorb the insulin injection of smaller international unit doses.

The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: a high-precision insulin syringe, comprising an injection needle and an injection syringe connected with the injection needle, and the injection syringe is provided with a scale line representing the dose of the drug; The scale line includes a plurality of long measurement lines with the same spacing, a plurality of short measurement lines with the same spacing, and a longitudinal measurement connection line, the short measurement lines are located between the long measurement lines, and the short measurement lines connect two adjacent measurement lines. The distance between the long measurement lines is equally divided into 5 small cells; the distance between the two adjacent short measurement lines is 1 international unit of drug dose, and the volume of 1 international unit of drug dose is 0.01ml; so The distance between the two adjacent long measurement lines is the drug dose of 5 international units; the range of the drug dose represented by the scale line is 5 to 50 international units; the outer wall of the injection syringe is sleeved with a pressurized an injection barrel; an injection push rod is arranged in the pressurized injection barrel; a pressurized thread is sleeved on the outer wall of the injection push rod; the end of the injection push rod located in the pressurized injection barrel is provided with a rubber sealing piston; The end of the injection push rod outside the pressurized injection barrel is provided with a rotary pressurizing handle; the end of the pressurized injection barrel close to the injection barrel is provided with a rotary wedge-shaped scale movably connected with the outer wall of the injection barrel, and the rotary The wedge-shaped ruler is integrally formed with the pressurized injection barrel.

By adopting the above technical solution, when injecting insulin for a patient, according to the injection dose of insulin injection instructed by the clinician, by rotating the rotary pressure handle, the injection push rod is driven to rotate and move in the pressurized syringe and the injection syringe. , so as to absorb the insulin injection into the injection syringe; at the same time, according to the scale line, the international unit dose of the insulin injection to be absorbed can be directly read, so as to avoid the process of converting the volume of the insulin injection into the international unit dose Inaccurate doses of insulin injections are caused by errors in the measurement process; by rotating the wedge-shaped ruler, the liquid volume of 0.05ml between adjacent long measurement lines can be subdivided into 50 equal parts, when it is necessary to absorb less than 5 unit doses of insulin When injecting liquid, rotate the scale of the rotating wedge-shaped scale to coincide with the short metering line on the injection syringe, so as to facilitate the accurate absorption of insulin injections less than 5 unit doses, that is: the volume of insulin injections absorbed = rotating wedge The scale value of the ruler × 0.001; after sucking the exact dose of insulin injection into the injection syringe, insert the injection needle into the subcutaneous tissue of the patient, and rotate the rotary pressure handle to drive the injection push rod and the rubber sealing piston in the injection syringe. The insulin injection in the injection syringe can be moved into the patient's body; the SI unit dose of the absorbed insulin injection can be directly read through the scale line on the injection syringe and the rotating wedge-shaped ruler, so as to avoid using A common syringe for drawing insulin injection requires a complex conversion process between the volume of the injection and the international unit dose; at the same time, it can also accurately draw insulin injections with a smaller international unit dose.

The utility model is further configured as follows: the outer wall of the injection syringe is provided with a numerical value in international unit corresponding to the long metering line representing the dose of the medicine.

By adopting the above technical solution, it is convenient to directly read the unit dose of the insulin injection located in the injection syringe through the international unit value.

The utility model is further provided that: the outer wall of the injection syringe is provided with a volume reading value representing the volume of the medicine corresponding to the long metering line.

By adopting the above technical solution, it is convenient to read the volume of the insulin injection in the injection syringe through the volume reading value.

The utility model is further set as follows: the length of the injection needle is 12.5mm; the diameter of the pair of injection needles is 0.3mm.

By adopting the above technical solution, when injecting insulin for a patient, the injection needle with a length of 12.5 mm and a diameter of 0.3 mm is used to reduce the stress area of the punctured tissue of the patient and increase the injection pressure, thereby reducing the pain of the patient. .

The utility model is further provided as follows: the side wall of the injection needle is provided with a needle protective cover which is slidably connected with the injection needle; the side wall of the injection needle is provided with a safety distance mark; the distance between the safety distance mark and the needle tip of the injection needle is 5mm.

By adopting the above technical solution, when subcutaneously injecting insulin for the patient, the needle protective sleeve is slid to the safe distance mark, so as to maintain the safe injection distance when subcutaneously injecting insulin for the patient; When used in a liquid bag, slide the needle protective cover to the bottom of the injection needle, so that the injection needle can be exposed to a sufficient length to make the dose of insulin injection added into the liquid bag more accurate.

The utility model is further provided that: the outer wall of the injection syringe is sleeved with a transparent rotating fixing piece.

By adopting the above technical solution, when rotating the pressing handle, the rotating fixing member is used to facilitate the anti-rotation fixation of the pressurizing syringe.

The utility model is further configured as follows: the tail end of the injection needle is fixedly connected with a hollow fixing seat; the fixing seat is threadedly connected with the liquid outlet end of the injection needle.

By adopting the above technical solution, the fixing seat is used to facilitate the fixing of the injection needle; the threaded connection between the fixing seat and the liquid outlet end of the injection syringe facilitates the stable connection between the injection needle and the injection syringe.

To sum up, the utility model has the following beneficial effects: by rotating and rotating the pressurizing handle, the injection push rod is driven to rotate and move in the pressurizing injection barrel and the injection barrel, so as to absorb the insulin injection into the injection barrel; At the same time, according to the scale line, the international unit dose of the insulin injection to be absorbed can be directly read out, so as to avoid errors in the process of converting the volume of the insulin injection into the international unit dose, resulting in an inaccurate dose of the insulin injection absorbed; By rotating the wedge-shaped ruler, the liquid volume of 0.05ml between adjacent long measuring lines can be subdivided into 50 equal parts. When the insulin injection below 5 unit doses needs to be drawn, the scale of the rotating wedge-shaped ruler can be rotated to the same The short metering lines on the injection syringe are coincident, so that it is convenient to accurately absorb the insulin injection of less than 5 unit doses, that is: the volume of the absorbed insulin injection = the scale value of the rotating wedge scale × 0.001; After the insulin injection is put into the injection barrel, the injection needle is inserted into the subcutaneous tissue of the patient, and the injection push rod and the rubber sealing piston are driven to move in the injection barrel by rotating the rotary pressure handle, so as to inject the insulin in the injection barrel. Through the scale line on the injection syringe and the rotating wedge-shaped ruler, the international unit dose of the absorbed insulin injection can be directly read, so as to avoid the need to use a common syringe to absorb the insulin injection. The process of complex conversion between unit doses; at the same time, it is also possible to accurately draw smaller international unit doses of insulin injections.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

In the picture: 1. Injection needle; 2. Injection syringe; 3. Scale line; 4. Long measuring line; 5. Short measuring line; 6. Longitudinal measuring connecting line; 7. Pressurized syringe; 8. Injection push rod ; 9. Pressure thread; 10. Rubber sealing piston; 11. Rotating pressure handle; 12. Rotating wedge-shaped scale; 13. International unit value; 14. Volume reading value; 15. Needle protective sleeve; 16. Safety distance mark; 17. Rotating fixing parts; 18. Fixing seat.

Detailed ways

The present utility model will be described in further detail below in conjunction with FIG. 1 .

Example: A high-precision insulin syringe, as shown in Figure 1, includes an injection needle 1 and an injection syringe 2 connected to the injection needle 1, and the injection syringe 2 is engraved with a scale line 3 representing the dose of the drug. The scale line 3 includes a plurality of long measurement lines 4 with the same spacing, a plurality of short measurement lines 5 with the same spacing and a longitudinal measurement connection line. The short measurement lines 5 are located between the long measurement lines 4, and the short measurement lines 5 will be adjacent to two The distance between the long measuring lines 4 is equally divided into 5 small grids. The distance between two adjacent short metering lines 5 is 1 IU of the drug dose, and the volume of 1 IU of the drug dose is 0.01 ml. The distance between two adjacent long metering lines 4 is 5 international units of drug dose. The range of the drug dose indicated by the tick mark 3 is 5 to 50 international units. The outer wall of the injection syringe 2 is movably sleeved with a pressurized syringe 7 . An injection plunger 8 is installed in the pressurized syringe 7 . The outer wall of the injection push rod 8 is sleeved with a pressure thread 9 . The end of the injection push rod 8 located in the pressurized syringe 7 is fixedly connected with a rubber sealing piston 10 which can be slidably connected with the inner wall of the injection syringe 2. A rotary pressing handle 11 is fixedly connected to the end of the injection push rod 8 outside the pressurized syringe 7 . The end of the pressurized syringe 7 close to the injection syringe 2 is connected with a rotating wedge-shaped scale 12 movably connected to the outer wall of the injection syringe 2 .

In this embodiment, the insulin pen-type syringe is a 0.5ml syringe. The reading principle of the syringe is as follows: the rotating wedge-shaped scale 12 advances along the outer wall of the injection syringe 2, and each time the rotary pressurizing handle 11 rotates, it advances 0.05ml on the scale line 3 of the injection syringe 2, that is, 5 pieces International unit dose of insulin injection. Using the principle of the helical micrometer, it is equivalent to further dividing the scale of 0.05ml into 50 parts. The accuracy is 0.001ml. When aspirating insulin injections of less than 5 IU doses, the volume reading = the scale value of the rotating wedge scale 12 × 0.001 (ml), and then by simple conversion between the volume reading and the IU dose, the SI unit is obtained dose. The conversion formula is: 0.01ml=1 international unit dose. The injection syringe 2 and the pressurized syringe 7 are made of transparent sterile plastic materials. The pressurized syringe 7 is rotatably and sealedly connected to the outer wall of the injection syringe 2 . When injecting insulin for a patient, according to the injection dose of insulin injection instructed by the clinician, the injection push rod 8 is driven to rotate in the pressurized syringe 7 and the injection syringe 2 by rotating the rotary pressurizing handle 11, thereby Aspirate the insulin injection into the injection syringe 2 . At the same time, according to the scale line 3, the international unit dose of the insulin injection that needs to be absorbed can be directly read, so as to avoid errors in the process of converting the volume of the insulin injection into the international unit dose, resulting in an inaccurate insulin injection dose. . Using the principle of the helical micrometer, by rotating the wedge-shaped scale 12, the liquid volume of 0.05ml between the adjacent long measuring lines 4 can be subdivided into 50 equal parts. Rotate the scale of the rotating wedge-shaped scale 12 to coincide with the short metering line 5 on the injection syringe 2, so as to facilitate the accurate absorption of insulin injections less than 5 unit doses, that is: the volume of absorbed insulin injections = the rotating wedge-shaped scale Scale value of 12 x 0.001. After sucking the exact dose of insulin injection into the injection syringe 2, the injection needle 1 is inserted into the subcutaneous tissue of the patient, and the injection push rod 8 and the rubber sealing piston 10 are driven into the injection syringe 2 by rotating the rotary pressure handle 11. The movement is performed to inject the insulin injection in the injection syringe 2 into the patient. Through the scale line 3 on the injection syringe 2 and the rotating wedge-shaped scale 12, the SI unit dose of the absorbed insulin injection can be directly read, so as to avoid the need to compare the injection volume with the SI unit dose by using a common syringe to absorb the insulin injection. The process of performing complex conversions between. At the same time, it is also possible to accurately draw smaller IU doses of insulin injections.

The outer wall of the injection syringe 2 is marked with a numerical value 13 in international units corresponding to the long metering line 4 representing the dose of the drug.

In this embodiment, the SI value of 13 is used to facilitate the direct reading of the unit dose of the insulin injection located in the injection syringe 2 .

The outer wall of the injection syringe 2 is marked with a volume reading value 14 corresponding to the long metering line 4 representing the volume of the medicine.

In this embodiment, it is convenient to read the volume of the insulin injection solution in the injection syringe 2 through the volume reading value 14 .

The length of the injection needle 1 is 12.5 mm. The diameter of one pair of injection needles is 0.3 mm.

In this embodiment, when injecting insulin for a patient, the injection needle 1 with a length of 12.5 mm and a diameter of 0.3 mm is used to reduce the stress area of the punctured tissue of the patient and increase the injection pressure, thereby reducing the pain of the patient. sense.

The side wall of the injection needle 1 is sleeved with a needle protective sleeve 15 slidably connected with the injection needle 1 . A safety distance mark 16 is marked on the side wall of the injection needle 1 . The distance between the safety distance mark 16 and the needle tip of the injection needle 1 is 5mm.

In this embodiment, when subcutaneously injecting insulin for a patient, the needle protective sleeve 15 is slid to the safe distance mark 16, so as to maintain a safe injection distance when subcutaneously injecting insulin for the patient. At the same time, when the insulin injection needs to be added to the liquid bag for use, the needle protective sleeve 15 is slid to the bottom of the injection needle 1, so that the injection needle 1 can be exposed to a sufficient length and the dosage of the insulin injection added into the liquid bag can be increased. precise.

The outer wall of the injection syringe 2 is sleeved with a transparent rotating fixing member 17 .

In this embodiment, when rotating the pressurizing handle 11 , the rotating fixing member 17 is used to facilitate the anti-rotation fixation of the pressurizing syringe 7 .

A hollow fixing seat 18 is fixedly connected to the rear end of the injection needle 1 . The fixing seat 18 is threadedly connected with the liquid outlet end of the injection syringe 2 .

In this embodiment, the fixing seat 18 facilitates the fixing of the injection needle 1 . The fixed seat 18 is threadedly connected with the liquid outlet end of the injection syringe 2 , which facilitates the stable connection between the injection needle 1 and the injection syringe 2 .

Working principle: When injecting insulin for a patient, according to the injection dose of insulin injection instructed by the clinician, by rotating and rotating the pressure handle 11, the injection push rod 8 is driven to rotate in the pressure syringe 7 and the injection syringe 2. Move to suck the insulin injection into the injection syringe 2 . At the same time, according to the scale line 3, the international unit dose of the insulin injection that needs to be absorbed can be directly read, so as to avoid errors in the process of converting the volume of the insulin injection into the international unit dose, resulting in an inaccurate insulin injection dose. . By rotating the wedge-shaped scale 12, the liquid volume of 0.05ml between the adjacent long measuring lines 4 can be subdivided into 50 equal parts. Rotate to coincide with the short metering line 5 on the injection syringe 2, so as to facilitate accurate aspiration of insulin injections less than 5 unit doses, ie: the volume of absorbed insulin injections = the scale value of the rotating wedge scale 12 × 0.001. After sucking the exact dose of insulin injection into the injection syringe 2, the injection needle 1 is inserted into the subcutaneous tissue of the patient, and the injection push rod 8 and the rubber sealing piston 10 are driven into the injection syringe 2 by rotating the rotary pressing handle 11. The movement is performed to inject the insulin injection in the injection syringe 2 into the patient. Through the scale line 3 on the injection syringe 2 and the rotating wedge-shaped scale 12, the SI unit dose of the absorbed insulin injection can be directly read, thereby avoiding the need to compare the injection volume with the SI unit dose by using a common syringe to absorb the insulin injection The process of performing complex conversions between. At the same time, it is also possible to accurately draw smaller IU doses of insulin injections.

This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but only within the scope of the present invention All new types of claims are protected by the patent law.

Claims (7)

1. A high-precision insulin syringe comprises an injection needle (1) and an injection needle cylinder (2) connected with the injection needle (1), and is characterized in that: the injection needle cylinder (2) is provided with scale marks (3) for representing the medicament dosage; the scale marks (3) comprise a plurality of long metering lines (4) with the same interval, a plurality of short metering lines (5) with the same interval and longitudinal metering connecting lines, the short metering lines (5) are positioned between the long metering lines (4), and the short metering lines (5) divide the distance between two adjacent long metering lines (4) into 5 lattices; the distance between the two adjacent short metering lines (5) is 1 international unit of drug dosage, and the volume of the 1 international unit of drug dosage is 0.01 ml; the distance between two adjacent long metering lines (4) is 5 international units of drug dose; the range value of the drug dose represented by the scale mark (3) is 5-50 international units; the outer wall of the injection needle cylinder (2) is sleeved with a pressurized injection cylinder (7); an injection push rod (8) is arranged in the pressurizing injection cylinder (7); the outer wall of the injection push rod (8) is sleeved with a pressurizing thread (9); the end part of the injection push rod (8) positioned in the pressurized injection cylinder (7) is provided with a rubber sealing piston (10); the end part of the injection push rod (8) positioned outside the pressurizing injection cylinder (7) is provided with a rotary pressurizing handle (11); the end part of the pressure injection tube (7) close to the injection tube (2) is provided with a rotary wedge-shaped scale (12) movably connected with the outer wall of the injection tube (2), and the rotary wedge-shaped scale (12) and the pressure injection tube (7) are integrally formed.

2. A high precision insulin pump according to claim 1, wherein: the outer wall of the injection syringe (2) is provided with an international unit number (13) which corresponds to the long metering line (4) and represents the dosage of the medicine.

3. A high precision insulin pump according to claim 1, wherein: the outer wall of the injection syringe (2) is provided with a volume reading value (14) which is corresponding to the long metering line (4) and represents the volume of the medicine.

4. A high precision insulin pump according to claim 1, wherein: the length of the injection needle (1) is 12.5 mm; the diameter of the injection needle head (1) pair is 0.3 mm.

5. A high precision insulin pump according to claim 1, wherein: a needle head protective sleeve (15) which is in sliding connection with the injection needle head (1) is sleeved on the side wall of the injection needle head (1); the side wall of the injection needle (1) is provided with a safe distance mark (16); the distance between the safety distance mark (16) and the needle point of the injection needle (1) is 5 mm.

6. A high precision insulin pump according to claim 1, wherein: the outer wall of the injection syringe (2) is sleeved with a transparent rotary fixing piece (17).

7. A high precision insulin pump according to claim 1, wherein: the tail end of the injection needle (1) is fixedly connected with a hollow fixed seat (18); the fixed seat (18) is in threaded connection with the liquid outlet end of the injection syringe (2).

Images