Insulin pen

Abstract

The invention provides an insulin pen, and relates to the technical field of insulin pens. Comprising a pen container piece, and a propelling control piece is installed on the pen container piece; a storage part is mounted on the pen container piece; insulin is stored in the storage part; the propulsion control piece is used for extruding and discharging insulin in the storage part; a uniform mixing sealing piece is mounted in the storage part; the uniform mixing sealing part is used for sealing the storage part; according to the insulin pen, the insulin storage safety can be guaranteed, leakage or air invasion can be avoided, timely prompting and alarming can be conveniently carried out when the insulin refill leaks, and the problems that an existing insulin pen easily invades air and other germs, the insulin safety is affected, and meanwhile leakage is inconvenient to know in time are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of insulin pens, and in particular, to an insulin pen. Background Art

[0002] Insulin not only lowers blood sugar, but also promotes the synthesis of glycogen, fat, and protein. It is an important drug for treating diabetes. In particular, exogenous insulin is widely used in the treatment of diabetes. When diabetic patients inject insulin daily, after blood sugar detection, the insulin can be injected into the abdominal subcutaneous tissue through an insulin pen. Due to the flexible use of the insulin pen and other advantages, it is widely used. After the current insulin pen is used up, the remaining insulin is sealed by the elasticity of the rubber stopper of the insulin pen core. Subject to the influence of the storage environment and other factors, it is easy to invade air and other germs, affecting the safety of insulin, not facilitating pressure-holding sealing, and the hygiene effect of insulin storage is not good. At the same time, it is not easy to know in time when leakage occurs. The pain of patients when injecting insulin is relatively strong. The use process requires overcoming psychological barriers, and it is not easy to cool down to reduce the pain. At the same time, in order to ensure smooth puncture, the abdomen is relatively soft, and most traditional needles are relatively long, further increasing the pain and not facilitating positioning the skin flat to reduce the needle length. Summary of the Invention

[0003] An embodiment of the present disclosure relates to an insulin pen, and its propulsion connecting piece can ensure the safety of insulin storage, avoid leakage or air invasion, and is also convenient for timely prompting and alarming when leakage occurs in the insulin pen core, solving the problems that the current insulin pen is easy to invade air and other germs, affecting the safety of insulin, and it is not easy to know in time when leakage occurs.

[0004] In a first aspect of the present disclosure, an insulin pen is provided, including a pen barrel member, on which a propulsion control member is installed; a storage part is installed on the pen barrel member; insulin is stored inside the storage part; the propulsion control member is used for squeezing and discharging the insulin inside the storage part; a mixing and sealing member is installed inside the storage part; the mixing and sealing member is used for sealing the storage part; a propulsion connecting piece is installed on the propulsion control member; the propulsion connecting piece is connected to the storage part; the propulsion connecting piece is used for detecting leakage of the storage part; an injection member is installed on the pen barrel member; a cooling and analgesic member is installed on the pen barrel member; the pen barrel member includes: a mounting cylinder, a sliding strip, and a pressing ring. Six sliding strips are fixedly installed inside the mounting cylinder; a pressing ring is fixedly installed on the mounting cylinder; the pressing ring is used for pressing the storage part.

[0005] In at least some embodiments, the storage unit includes: an insulin cartridge, a medicine-pushing piston, a sealing rubber plug, and a rubber head. The insulin cartridge is slidably inserted into the connecting sleeve. The tail of the insulin cartridge abuts against the pressing ring. A medicine-pushing piston is slidably sleeved on the insulin cartridge. A hexagonal protrusion is provided at the tail of the medicine-pushing piston. The hexagonal protrusion at the tail of the medicine-pushing piston is inserted into the tail of the insulin cartridge. A sealing rubber plug is fixedly sleeved at the front end of the insulin cartridge, and a rubber head is fixedly installed on the sealing rubber plug. The outer side of the rubber head has an inclined surface structure. Through holes are provided in the sealing rubber plug and the rubber head. The sealing rubber plug and the rubber head are of a rubber elastic structure. A threaded hole is provided at the tail of the medicine-pushing piston.

[0006] In at least some embodiments, the propulsion control member includes: a propulsion control motor, a propulsion lead screw, and a propulsion sliding cylinder. The propulsion control motor is fixedly installed inside the installation cylinder. A propulsion lead screw is fixedly installed on the output shaft of the propulsion control motor. A propulsion sliding cylinder is threadedly connected to the propulsion lead screw. The propulsion sliding cylinder is slidably sleeved inside the installation cylinder. The propulsion sliding cylinder is slidably installed on six sliding bars.

[0007] In at least some embodiments, the propulsion connecting member includes: a sliding limiting cylinder, a sleeve, a threaded post, and a microswitch. The sliding limiting cylinder is fixedly installed on the propulsion sliding cylinder. A sleeve is slidably sleeved on the sliding limiting cylinder. Both the sliding limiting cylinder and the sleeve are of a hexagonal cylinder structure. A threaded post is fixedly installed on the sleeve. The threaded post is threadedly connected to the threaded hole at the tail of the medicine-pushing piston. A microswitch is fixedly installed at the end of the propulsion sliding cylinder. The end of the microswitch abuts against the sleeve. The microswitch is electrically connected to an indicator light.

[0008] In at least some embodiments, the pen barrel member includes: an indicator light and a connecting sleeve. An indicator light is fixedly installed on the installation cylinder. The indicator light is used to indicate leakage of the storage unit. A connecting sleeve is threadedly connected to the installation cylinder, and both sides of the connecting sleeve are of a hollowed-out structure.

[0009] In at least some embodiments, the injection member includes: an injection connecting cap, an injection needle, a pushing cylinder, a marking cotton ring, and a liquid-absorbing sponge. The injection connecting cap is threadedly connected to the connecting sleeve. An injection needle is fixedly installed on the injection connecting cap. The tail of the injection needle passes through the sealing rubber plug and the rubber head. The pushing cylinder is fixedly installed on the injection connecting cap. A marking cotton ring is fixedly installed on the pushing cylinder, and a dye is provided on the marking cotton ring. A liquid-absorbing sponge is fixedly installed inside the marking cotton ring, and the liquid-absorbing sponge is used to absorb insulin.

[0010] In at least some embodiments, the mixing and sealing member includes: a mixing conical shell, an extrusion sliding cylinder, a sealing spring, and a plugging ball. The mixing conical shell is slidably sleeved on the insulin pen core; the inner side of the mixing conical shell is a bevel structure; a through hole is provided on the mixing conical shell; an extrusion sliding cylinder is fixedly installed on the mixing conical shell, and the inner side of the extrusion sliding cylinder is a bevel structure; the side surface of the extrusion sliding cylinder is in pressing contact with the rubber head; the extrusion sliding cylinder is sleeved on the insulin pen core; a sealing spring is sleeved on the extrusion sliding cylinder, and the end of the sealing spring is fixedly installed inside the insulin pen core, and the other end of the sealing spring is fixedly installed on the mixing conical shell; the plugging ball is located inside the insulin pen core; a rubber coating is provided on the outer side of the plugging ball; the plugging ball is used to close and fit the mixing conical shell.

[0011] In at least some embodiments, the cooling and analgesic member further includes: a semiconductor refrigeration plate, double-sided adhesive, and a return spring. The two sliding limit plates are respectively fixedly embedded with a semiconductor refrigeration plate; the semiconductor refrigeration plate is used to fit the skin for refrigeration; double-sided adhesives are respectively pasted on the two sliding limit plates; both of the two double-sided adhesives are used to fit the skin; two return springs are fixedly installed on the sliding sleeve, and the ends of the two return springs are respectively fixedly installed on the hand-held pressing piece.

[0012] In at least some embodiments, the propulsion connecting member further includes: a detection spring. A detection spring is sleeved inside the sliding limit cylinder; the end of the detection spring is connected to the propulsion sliding cylinder; the other end of the detection spring is fixedly installed inside the sleeve.

[0013] In at least some embodiments, the cooling and analgesic member includes: a sliding sleeve, a return tension spring, sliding limit plates, and a hand-held pressing piece. The sliding sleeve is slidably sleeved on the front end of the connecting sleeve; a return tension spring is sleeved inside the sliding sleeve; the end of the return tension spring is fixedly installed on the sliding sleeve, and the other end of the return tension spring is fixedly installed on the connecting sleeve; two sliding limit plates are slidably installed on the sliding sleeve, and the inner sides of the two sliding limit plates are respectively bevel structures; hand-held pressing pieces are respectively fixedly installed on the two sliding limit plates; the beveled inner sides of the two sliding limit plates are respectively attached to the pushing cylinder.

[0014] The present invention provides an insulin pen, which has the following beneficial effects:

[0015] In the present invention, a mixing and sealing member is adopted. The plugging ball is used to facilitate shaking and mixing of insulin. The plugging ball adopted in this structure can be pressed to fit on the mixing conical shell, which can ensure the sealing performance after the insulin pen core is used up, prevent air from invading the inside of the insulin pen core due to factors such as temperature difference, etc. This structure uses an extrusion sliding cylinder that can slide under pressure, which can further play a role in sealing the rubber head, and can prevent the rubber head from being inserted and extruded by the injection needle for a long time, resulting in leakage problems.

[0016] In addition, the cooling and analgesic component can use double-sided tape to play a role in pulling and flattening on the patient's skin surface, making it easier for the skin to be penetrated by shorter injection needles, reducing pain, and using the low temperature generated by the semiconductor cooling plate to quickly reduce the sensitivity of the nerves at the injection position to relieve the patient's pain.

[0017] In addition, the propulsion connecting component can be used to detect the internal pressure of the insulin pen cartridge, which can further ensure the quality of the insulin in the insulin pen cartridge, avoid the patient injecting deteriorated insulin and causing potential safety hazards. This structure uses the method of pressure detection, which is more intuitive and can directly give an alarm prompt.

[0018] In addition, the dye provided on the marking cotton ring is convenient for marking the injection position during injection, which is convenient for the patient to observe and prevent multiple injections at the same position. At the same time, the liquid-absorbing sponge can absorb a small amount of insulin discharged together when the patient controls the movement of the medicine-pushing piston to discharge the air inside the insulin pen cartridge, which can improve cleanliness and prevent insulin contamination. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the drawings:

[0022] Figure 1 A schematic diagram showing the overall structure of the present application is shown;

[0023] Figure 2 A cross-sectional view showing the internal structure of the present application is shown;

[0024] Figure 3 A schematic diagram showing the installation position of the mixing and sealing component of the present application is shown;

[0025] Figure 4 A schematic diagram showing the structure of the pen barrel component of the present application is shown;

[0026] Figure 5 A schematic diagram showing the structure of the propulsion control component of the present application is shown;

[0027] Figure 6 A schematic diagram showing the structure of the storage part of the present application is shown;

[0028] Figure 7 A schematic diagram showing the Figure 2 enlarged view of the structure of area B in the present application;

[0029] Figure 8 A schematic diagram showing theFigure 3 Enlarged view of the structure of area C;

[0030] Figure 9 Schematic diagram showing the structure of the injection part of the present application;

[0031] Figure 10 Schematic diagram showing the structure of the cooling and analgesic part of the present application;

[0032] Figure 11 Shows the Figure 3 Enlarged view of the structure of area D;

[0033] Figure 12 Shows the Figure 2 Enlarged view of the structure of area E.

[0034] List of reference numerals:

[0035] 1. Pen barrel part; 101. Installation cylinder; 1011. Sliding bar; 1012. Pressing ring; 102. Indicator light; 103. Connecting sleeve; 2. Pushing control part; 201. Pushing control motor; 202. Pushing lead screw; 203. Pushing sliding cylinder; 3. Storage part; 301. Insulin pen refill; 302. Medicine pushing piston; 303. Sealing rubber plug; 3031. Rubber head; 4. Mixing and sealing part; 401. Mixing conical shell; 402. Extrusion sliding cylinder; 403. Sealing spring; 404. Sealing ball; 5. Pushing connecting part; 501. Sliding limit cylinder; 502. Sleeve; 503. Threaded column; 504. Microswitch; 505. Detection spring; 6. Injection part; 601. Injection connection cover; 602. Injection needle; 603. Pushing cylinder; 604. Marking cotton ring; 605. Absorbent sponge; 7. Cooling and analgesic part; 701. Sliding sleeve shell; 702. Reset tension spring; 703. Sliding limit plate; 7031. Hand-held pressing piece; 704. Semiconductor refrigeration plate; 705. Double-sided adhesive; 706. Reset spring. Detailed implementation manners

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0037] Embodiment 1: Please refer to Figures 1 to 12 :

[0038] The present invention provides an insulin pen, which includes a pen barrel member 1, on which a pushing control member 2 is installed; a storage portion 3 is installed on the pen barrel member 1; insulin is stored inside the storage portion 3; the pushing control member 2 is used to squeeze and discharge the insulin inside the storage portion 3; a mixing and sealing member 4 is installed inside the storage portion 3; the mixing and sealing member 4 is used to seal the storage portion 3; a pushing connecting member 5 is installed on the pushing control member 2; the pushing connecting member 5 is connected to the storage portion 3; the pushing connecting member 5 is used to detect leakage of the storage portion 3; an injection member 6 is installed on the pen barrel member 1; a cooling and analgesic member 7 is installed on the pen barrel member 1; the pen barrel member 1 includes: an installation cylinder 101, a sliding strip 1011 and a pressing ring 1012, six sliding strips 1011 are fixedly installed inside the installation cylinder 101; a pressing ring 1012 is fixedly installed on the installation cylinder 101; the pressing ring 1012 is used to press the storage portion 3.

[0039] In the embodiment of the present disclosure, the pen barrel member 1 includes: an indicator light 102 and a connecting sleeve 103, the indicator light 102 is fixedly installed on the installation cylinder 101; the indicator light 102 is used to indicate leakage of the storage portion 3; the connecting sleeve 103 is threadedly connected to the installation cylinder 101, and both sides of the connecting sleeve 103 are hollow structures; the pushing control member 2 includes: a pushing control motor 201, a pushing lead screw 202 and a pushing sliding cylinder 203, the pushing control motor 201 is fixedly installed inside the installation cylinder 101; a pushing lead screw 202 is fixedly installed on the output shaft of the pushing control motor 201; the pushing sliding cylinder 203 is threadedly connected to the pushing lead screw 202; the pushing sliding cylinder 203 is slidably sleeved inside the installation cylinder 101; the pushing sliding cylinder 203 is slidably installed on the six sliding strips 1011; the storage portion 3 includes: an insulin pen core 301, a medicine pushing piston 302, a sealing rubber plug 303 and a rubber head 3031, the insulin pen core 301 is slidably inserted on the connecting sleeve 103; the tail of the insulin pen core 301 abuts against the pressing ring 1012; a medicine pushing piston 302 is slidably sleeved on the insulin pen core 301; a hexagonal protrusion is provided at the tail of the medicine pushing piston 302; the hexagonal protrusion at the tail of the medicine pushing piston 302 is inserted into the tail of the insulin pen core 301; a sealing rubber plug 303 is fixedly sleeved at the front end of the insulin pen core 301, and a rubber head 3031 is fixedly installed on the sealing rubber plug 303; the outer side of the rubber head 3031 is a bevel structure; through holes are provided on the sealing rubber plug 303 and the rubber head 3031; the sealing rubber plug 303 and the rubber head 3031 are of rubber elastic structure; a threaded hole is provided at the tail of the medicine pushing piston 302. By using the cooperation of the storage portion 3 and the pushing control member 2, precise supply of insulin can be achieved. At the same time, this structure is more flexible to hold and use. The medicine pushing piston 302 adopted in this structure can be pushed and controlled by the pushing control member 2, and the operation is simple. By using the bevel structure of the rubber head 3031, the sealing effect can be improved subsequently, preventing potential problems such as leakage caused by the gradual increase of the gap in the middle of the rubber head 3031 after long-term use. This structure can be assembled and used, which is flexible and convenient.

[0040] In an embodiment of the present disclosure, the mixing and sealing member 4 includes: a mixing conical shell 401, an extrusion sliding cylinder 402, a sealing spring 403, and a plugging ball 404. The mixing conical shell 401 is slidably sleeved on the insulin pen core 301; the inner side of the mixing conical shell 401 is a bevel structure; a through hole is provided on the mixing conical shell 401; an extrusion sliding cylinder 402 is fixedly installed on the mixing conical shell 401, and the inner side of the extrusion sliding cylinder 402 is a bevel structure; the side surface of the extrusion sliding cylinder 402 is in extrusion contact with the rubber head 3031; the extrusion sliding cylinder 402 is sleeved on the insulin pen core 301; a sealing spring 403 is sleeved on the extrusion sliding cylinder 402, and the end of the sealing spring 403 is fixedly installed inside the insulin pen core 301, and the other end of the sealing spring 403 is fixedly installed on the mixing conical shell 401; the plugging ball 404 is located inside the insulin pen core 301; a rubber coating is provided on the outer side of the plugging ball 404; the plugging ball 404 is used to close and fit the mixing conical shell 401. By using the mixing and sealing member 4, it is convenient to shake and mix insulin with the plugging ball 404. At the same time, the plugging ball 404 used in this structure can be pressed against the mixing conical shell 401, which can ensure the sealing performance after the insulin pen core 301 is used up, prevent air from invading the inside of the insulin pen core 301 due to factors such as temperature difference, and prevent long-term oxidation and bacteria from affecting insulin. By using the extrusion sliding cylinder 402 that can slide under pressure, it can further play a role in sealing the rubber head 3031, and can prevent the rubber head 3031 from being inserted and extruded by the injection needle 602 for a long time, resulting in leakage problems. This structure has a better protection effect on the insulin inside the insulin pen core 301, can prevent factors such as deterioration, and at the same time has a simple structure and low manufacturing cost. By shaking the handheld installation cylinder 101, the solution in the insulin pen core 301 can be mixed with the plugging ball 404. By controlling the downward pressure of the medicine-pushing piston 302, pressure is generated inside the insulin pen core 301. Under the action of the pressure, the plugging ball 404 fits more tightly against the inner side of the mixing conical shell 401 for closing. Due to the generated pressure, the extrusion sliding cylinder 402 can be driven to squeeze the rubber head 3031 by the bevel surface. After the rubber head 3031 is pressed, it contracts inward, further closing and preventing leakage.

[0041] In the embodiments of the present disclosure, the propulsion connecting member 5 includes: a sliding limit cylinder 501, a sleeve 502, a threaded post 503, and a microswitch 504. The sliding limit cylinder 501 is fixedly installed on the propulsion sliding cylinder 203; a sleeve 502 is slidably sleeved on the sliding limit cylinder 501; both the sliding limit cylinder 501 and the sleeve 502 are hexagonal cylinder structures; a threaded post 503 is fixedly installed on the sleeve 502; the threaded post 503 is threadedly connected to the threaded hole at the tail of the medicine-pushing piston 302; a microswitch 504 is fixedly installed at the end of the propulsion sliding cylinder 203; the end of the microswitch 504 is attached to the sleeve 502; the microswitch 504 is electrically connected to the indicator light 102; the propulsion connecting member 5 further includes: a detection spring 505. A detection spring 505 is sleeved inside the sliding limit cylinder 501; the end of the detection spring 505 is connected to the propulsion sliding cylinder 203; the other end of the detection spring 505 is fixedly installed on the inner side of the sleeve 502. The propulsion connecting member 5 can be used to detect the internal pressure of the insulin cartridge 301. Whether there is a leakage inside the insulin cartridge 301 can be reflected by the internal pressure of the insulin cartridge 301, which can further ensure the quality of the insulin inside the insulin cartridge 301, avoid patients injecting deteriorated insulin and causing potential safety hazards. This structure uses the method of pressure detection, which is more intuitive and can directly give an alarm prompt. When the propulsion sliding cylinder 203 moves downward and presses the medicine-pushing piston 302, when the blocking ball 404 does not block the mixing conical shell 401 but normal drug administration is carried out, at this time, under the support of the detection spring 505, the sleeve 502 will not touch the microswitch 504. On the contrary, when the blocking ball 404 blocks the mixing conical shell 401, under the action of the pressure inside the insulin cartridge 301, the sliding limit cylinder 501 continues to move, and the detection spring 505 is compressed. At this time, the sleeve 502 presses the microswitch 504. Correspondingly, if the internal pressure of the insulin cartridge 301 disappears and there is a leakage situation, under the elastic push of the detection spring 505, the sleeve 502 will push the medicine-pushing piston 302 to move. At this time, the sleeve 502 no longer presses the microswitch 504, and the indicator light 102 can light up for prompt.

[0042] In the embodiments of the present disclosure, the injection member 6 includes an injection connection cap 601, an injection needle 602, a push cylinder 603, a marking cotton ring 604, and a liquid-absorbing sponge 605. The injection connection cap 601 is threadedly connected to the connection sleeve 103; the injection needle 602 is fixedly installed on the injection connection cap 601; the tail of the injection needle 602 passes through the sealing rubber plug 303 and the rubber head 3031; the push cylinder 603 is fixedly installed on the injection connection cap 601; the marking cotton ring 604 is fixedly installed on the push cylinder 603, and a dye is provided on the marking cotton ring 604; the liquid-absorbing sponge 605 is fixedly installed inside the marking cotton ring 604, and the liquid-absorbing sponge 605 is used to absorb insulin; the injection connection cap 601 facilitates one-time replacement and use. At the same time, the dye provided on the marking cotton ring 604 facilitates marking the injection position during injection. The injection needle 602 is used to pierce into the subcutaneous tissue, and the push cylinder 603 plays a role in limiting the depth of needle insertion and also makes the marking cotton ring 604 fit on the skin for printing, which is convenient for patients to observe and prevents repeated injection at the same position. At the same time, the liquid-absorbing sponge 605 can absorb a small amount of insulin discharged together when the patient controls the movement of the push piston 302 to discharge the air inside the insulin pen cartridge 301, which can improve the cleanliness. When the patient inverts the injection needle 602 to discharge the air, the small amount of overflowed insulin falls into the liquid-absorbing sponge 605 under the action of gravity and is absorbed. When docking the injection connection cap 601, it can be screwed into the connection sleeve 103.

[0043] Embodiment 2, on the basis of Embodiment 1, the cooling and analgesic member 7 includes: a sliding sleeve 701, a return spring 702, a sliding limit plate 703 and a handheld pressing piece 7031. The sliding sleeve 701 is slidably sleeved on the front end of the connecting sleeve 103; a return spring 702 is sleeved inside the sliding sleeve 701; the end of the return spring 702 is fixedly installed on the sliding sleeve 701, and the other end of the return spring 702 is fixedly installed on the connecting sleeve 103; two sliding limit plates 703 are slidably installed on the sliding sleeve 701, and the inner sides of the two sliding limit plates 703 are respectively inclined plane structures; handheld pressing pieces 7031 are respectively fixedly installed on the two sliding limit plates 703; the inner inclined plane parts of the two sliding limit plates 703 are respectively attached to the pushing cylinder 603; the cooling and analgesic member 7 further includes: a semiconductor refrigeration plate 704, a double-sided adhesive 705 and a return spring 706. Semiconductor refrigeration plates 704 are respectively fixedly embedded on the two sliding limit plates 703; the semiconductor refrigeration plate 704 is used for attaching to the skin for refrigeration; double-sided adhesives 705 are respectively pasted on the two sliding limit plates 703; both of the two double-sided adhesives 705 are used for attaching to the skin; two return springs 706 are fixedly installed on the sliding sleeve 701, and the ends of the two return springs 706 are respectively fixedly installed on the handheld pressing piece 7031. By using the cooling and analgesic member 7, the double-sided adhesive 705 can be used to play a role of pulling and flattening on the skin surface of the patient, which can make the skin more convenient for the short injection needle 602 to penetrate, reduce the pain, and avoid the problem that the soft abdomen needs to be pressed inward during injection and the required needle is longer. This structure cooperates with the semiconductor refrigeration plate 704 to utilize the low temperature generated by the semiconductor refrigeration plate 704 to quickly reduce the sensitivity of the nerves at the injection position, relieve the pain of the patient, and achieve the purpose of analgesia. The structure is simple, the comfort of the patient during use is higher, and at the same time, because the injection time is short, the skin of the patient will not be damaged due to freezing, and the safety is better. The operation is simple and convenient.

[0044] Working principle of this embodiment: First, threadedly rotate the medicine-pushing piston 302 at the tail of the insulin cartridge 301 to be butt-jointed with the threaded column 503. The threaded engagement is used to ensure the movement accuracy of pushing the medicine-pushing piston 302. After inserting the insulin cartridge 301 into the connecting sleeve 103, connect the connecting sleeve 103 with the threaded connection installation cylinder 101; one hand of the patient holds the installation cylinder 101, and the other hand pinches and holds the hand-held pressing piece 7031 with two fingers. At this time, the two sliding limit plates 703 approach each other. The sliding limit plates 703 can limit the pushing cylinder 603. At this time, attach the double-sided adhesive 705 to the patient's abdomen, and appropriately gather the patient's abdominal skin inward to leave a margin for subsequent expansion and flattening. Cooperate with the semiconductor refrigeration plate 704 to quickly cool the skin. Subsequently, quickly release the hand-held pressing piece 7031. Under the extrusion of the return spring 706, the two sliding limit plates 703 drive the double-sided adhesive 705 to expand outward and flatten the skin. At this time, the sliding limit plates 703 no longer limit the pushing cylinder 603. Under the pulling of the return tension spring 702, the connecting sleeve 103 is pulled, driving the injection needle 602 to pierce the patient's abdomen for injection; the rotation of the propulsion control motor 201 can be driven to drive the propulsion lead screw 202 to rotate, control the movement of the propulsion sliding cylinder 203, and push the medicine-pushing piston 302 to increase the pressure for drug delivery;

[0045] After a single use, when it is necessary to seal and mix the mixing conical shell 401, first invert the insulin cartridge 301. Under the action of gravity, the blocking ball 404 will adhere to the mixing conical shell 401. At this time, control the downward pressure of the medicine-pushing piston 302. When the medicine-pushing piston 302 is pressed downward, pressure is generated inside the insulin cartridge 301. However, the blocking ball 404 blocks the mixing conical shell 401. At this time, under the action of the pressure, the blocking ball 404 fits more tightly against the inner side of the mixing conical shell 401 to seal. Due to the generated pressure, the blocking ball 404 and the mixing conical shell 401 will move downward together, thereby compressing the closing spring 403 and driving the extrusion sliding cylinder 402 to squeeze the rubber head 3031 by means of an inclined plane. After the rubber head 3031 is pressed, it contracts inward to further seal against leakage; when the blocking ball 404 seals the mixing conical shell 401, under the action of the pressure inside the insulin cartridge 301, the sliding limit cylinder 501 can continue to move, and the detection spring 505 is compressed. At this time, the sleeve 502 squeezes the micro switch 504. Correspondingly, if the pressure inside the insulin cartridge 301 disappears and there is a leakage situation, under the elastic force of the detection spring 505, the sleeve 502 will squeeze the medicine-pushing piston 302 to move. At this time, the sleeve 502 no longer squeezes the micro switch 504, and the indicator light 102 can light up to give a prompt. At this time, the insulin inside the insulin cartridge 301 should not be used continuously; when it is necessary to release the sealing of the blocking ball 404 on the mixing conical shell 401, drive the propulsion sliding cylinder 203 to move in the reverse direction to pull back the medicine-pushing piston 302 through the threaded column 503. The pressure inside the insulin cartridge 301 disappears, and the blocking ball 404 can be disengaged; with the injection needle 602 facing upward, a small amount of air existing in the insulin cartridge 301 accumulates at the top. Control the medicine-pushing piston 302 to push toward the injection part 6. After discharging the air, subsequent injection work can be carried out.

[0046] In this article, the following points need to be noted:

[0047] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0048] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0049] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An insulin pen, comprising a pen barrel (1), wherein a propulsion control member (2) is mounted on the pen barrel (1); characterized in that: The pen barrel (1) is provided with a storage portion (3); insulin is stored inside the storage portion (3); and the thrust control component (2) is used to squeeze and discharge the insulin inside the storage portion (3); A mixing and sealing member (4) is installed inside the storage portion (3); the mixing and sealing member (4) is used to seal the storage portion (3); The propulsion control member (2) is provided with a propulsion connection member (5); the propulsion connection member (5) is connected to the storage portion (3); the propulsion connection member (5) is used to detect leakage of the storage portion (3); The pen barrel (1) is provided with an injection component (6); the pen barrel (1) is provided with a cooling and analgesic component (7); The pen holder (1) comprises: a mounting tube (101), a sliding bar (1011) and a pressing ring (1012); six sliding bars (1011) are fixedly mounted inside the mounting tube (101); a pressing ring (1012) is fixedly mounted on the mounting tube (101); and the pressing ring (1012) is used for pressing the storage portion (3).

2. An insulin pen according to claim 1, characterized in that: The pen holder (1) comprises: an indicator light (102) and a connecting sleeve (103); the indicator light (102) is fixedly mounted on the mounting tube (101); the indicator light (102) is used to indicate leakage of the storage portion (3); the connecting sleeve (103) is threadedly connected to the mounting tube (101), and both sides of the connecting sleeve (103) are hollow structures.

3. An insulin pen according to claim 2, characterized in that: The propulsion control component (2) comprises: a propulsion control motor (201), a propulsion screw (202) and a propulsion sliding cylinder (203); the propulsion control motor (201) is fixedly mounted inside the mounting cylinder (101); the propulsion screw (202) is fixedly mounted on the output shaft of the propulsion control motor (201); the propulsion sliding cylinder (203) is threadedly connected to the propulsion screw (202); the propulsion sliding cylinder (203) is slidably sleeved inside the mounting cylinder (101); and the propulsion sliding cylinder (203) is slidably mounted on six sliding bars (1011).

4. An insulin pen according to claim 3, characterized in that: The storage part (3) comprises: an insulin pen cartridge (301), a medicine pushing piston (302), a sealing rubber plug (303) and a rubber head (3031); the insulin pen cartridge (301) is slidably plugged into the connecting sleeve (103); the tail of the insulin pen cartridge (301) fits the top pressure ring (1012); the medicine pushing piston (302) is slidably sleeved on the insulin pen cartridge (301); the tail of the medicine pushing piston (302) is provided with a hexagonal protrusion; the hexagonal protrusion at the tail of the medicine pushing piston (302) The shaped protrusion is inserted into the tail of the insulin pen cartridge (301); the front end of the insulin pen cartridge (301) is fixedly sleeved with a closed rubber plug (303), and the closed rubber plug (303) is fixedly mounted with a rubber head (3031); the outer side of the rubber head (3031) is an inclined surface structure; the closed rubber plug (303) and the rubber head (3031) are provided with through holes; the closed rubber plug (303) and the rubber head (3031) are rubber elastic structures; and the tail of the medicine pushing piston (302) is provided with a threaded hole.

5. An insulin pen according to claim 4, characterized in that: The mixing sealing member (4) comprises: a mixing cone shell (401), an extrusion sliding cylinder (402), a sealing spring (403) and a blocking ball (404); the mixing cone shell (401) is slidably sleeved on the insulin pen cartridge (301); the inner side of the mixing cone shell (401) is an inclined surface structure; a through hole is provided on the mixing cone shell (401); an extrusion sliding cylinder (402) is fixedly mounted on the mixing cone shell (401), and the inner side of the extrusion sliding cylinder (402) is an inclined surface structure; the side of the extrusion sliding cylinder (402) is extruded and fitted with a rubber head (3031); the extrusion sliding cylinder (402) is sleeved on the insulin pen cartridge (301); a closing spring (403) is sleeved on the extrusion sliding cylinder (402), and the end of the closing spring (403) is fixedly installed on the inner side of the insulin pen cartridge (301), and the other end of the closing spring (403) is fixedly installed on the mixing cone shell (401); the blocking ball (404) is located inside the insulin pen cartridge (301); a rubber coating is provided on the outer side of the blocking ball (404); the blocking ball (404) is used to seal and fit the mixing cone shell (401).

6. An insulin pen according to claim 4, characterized in that: The advancing connecting member (5) comprises: a sliding limit cylinder (501), a sleeve (502), a threaded column (503) and a micro switch (504); the sliding limit cylinder (501) is fixedly mounted on the advancing sliding cylinder (203); the sleeve (502) is slidably sleeved on the sliding limit cylinder (501); the sliding limit cylinder (501) and the sleeve (502) are both hexagonal cylinder structures; the threaded column (503) is fixedly mounted on the sleeve (502); the threaded column (503) is threadedly connected to the threaded hole at the tail of the medicine pushing piston (302); the micro switch (504) is fixedly mounted on the end of the advancing sliding cylinder (203); the end of the micro switch (504) is attached to the sleeve (502); the micro switch (504) is electrically connected to the indicator light (102).

7. An insulin pen according to claim 6, characterized in that: The propulsion connecting member (5) further comprises: a detection spring (505), the detection spring (505) being sleeved inside the sliding limit cylinder (501); the end of the detection spring (505) being connected to the propulsion sliding cylinder (203); and the other end of the detection spring (505) being fixedly mounted on the inner side of the sleeve (502).

8. An insulin pen according to claim 4, characterized in that: The injection component (6) comprises: an injection connection cover (601), an injection needle (602), a push cylinder (603), a marking cotton ring (604) and a liquid absorbing sponge (605). The injection connection cover (601) is threadedly connected to the connection sleeve (103); the injection needle (602) is fixedly installed on the injection connection cover (601); the tail of the injection needle (602) passes through the sealing rubber plug (303) and the rubber head (3031); the push cylinder (603) is fixedly installed on the injection connection cover (601); the marking cotton ring (604) is fixedly installed on the push cylinder (603), and the marking cotton ring (604) is provided with a dye; the liquid absorbing sponge (605) is fixedly installed inside the marking cotton ring (604), and the liquid absorbing sponge (605) is used to absorb insulin.

9. An insulin pen according to claim 8, characterized in that: The cooling and analgesic component (7) comprises: a sliding sleeve (701), a reset spring (702), a sliding limit plate (703) and a hand-held pressing piece (7031); the sliding sleeve (701) is slidably sleeved on the front end of the connecting sleeve (103); a reset spring (702) is sleeved inside the sliding sleeve (701); one end of the reset spring (702) is fixedly mounted on the sliding sleeve (701), and the other end of the reset spring (702) is fixedly mounted on the connecting sleeve (103); two sliding limit plates (703) are slidably mounted on the sliding sleeve (701), and the inner sides of the two sliding limit plates (703) are inclined structures respectively; a hand-held pressing piece (7031) is fixedly mounted on the two sliding limit plates (703); the inner inclined surfaces of the two sliding limit plates (703) are respectively attached to the pushing cylinder (603).

10. An insulin pen according to claim 9, characterized in that: The cooling and analgesic component (7) also includes: a semiconductor refrigeration plate (704), a double-sided tape (705) and a return spring (706); the two sliding limit plates (703) are respectively fixedly embedded with a semiconductor refrigeration plate (704); the semiconductor refrigeration plate (704) is used for cooling by fitting the skin; the two sliding limit plates (703) are respectively adhered with a double-sided tape (705); the two double-sided tapes (705) are both used for fitting the skin; two return springs (706) are fixedly installed on the sliding shell (701), and the ends of the two return springs (706) are respectively fixedly installed on the handheld pressing plate (7031).

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