A transmitter for an insulin pump cannula

Abstract

This invention relates to the field of medical device technology, specifically to a transmitter for an indwelling needle in an insulin pump. The transmitter includes a pump body and a housing. The outer wall of the pump body slides vertically against the inner wall of the housing. A sleeve is fixedly connected to the top of the housing, and a fixed platform is fixedly connected inside the sleeve. A sliding ring slides vertically within the sleeve, and a puncture cylinder slides vertically within the sliding ring. A puncture shell is detachably connected inside the puncture cylinder, and a puncture needle is fixedly connected to the bottom of the puncture shell. An indwelling needle is slidably fitted outside the puncture needle, and a syringe is fixedly connected outside the indwelling needle. This invention, through the design of the sliding ring and puncture cylinder, provides stable drive and support for the puncture process of the puncture needle and the indwelling needle, thereby improving the puncture effect. After simultaneously inserting the puncture needle and the indwelling needle into the patient's body, the puncture needle is automatically removed, while the indwelling needle is retained. Furthermore, after the puncture is completed, the device body automatically separates from the pump body, eliminating the need for repeated assembly and reducing the operational difficulty of the device.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to a transmitter for an indwelling needle of an insulin pump. Background Technology

[0002] Insulin pumps, as an important means of intensive diabetes treatment, simulate physiological insulin secretion through continuous subcutaneous insulin infusion and have become a routine treatment option for patients with type 1 diabetes and advanced type 2 diabetes. Before insulin pump infusion, an indwelling needle needs to be inserted into the patient's body. During this process, the reliability of the puncture operation, the rationality of the needle withdrawal operation, and the overall stability of the device directly affect the patient's user experience and treatment adherence.

[0003] Existing insulin pumps, such as the MicroTech insulin pump, mainly consist of several components, including a base plate, an indwelling needle, a transmitter, a controller, and the insulin pump body. Each time it is used, the base plate, indwelling needle, transmitter, puncture needle, controller, and insulin pump body need to be assembled. Then, the indwelling needle and puncture needle are inserted into the patient's body through the transmitter, and then the puncture needle is removed.

[0004] While existing devices of this type can achieve soft needle implantation, they contain many separate components that must be assembled according to instructions. This assembly process is complex and difficult, significantly reducing puncture efficiency and quality. Therefore, this invention provides a transmitter for insulin pump indwelling needles to solve the above problems. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a transmitter for an insulin pump indwelling needle. Through the design of a sliding plate ring and a puncture cylinder, it provides stable drive and support for the puncture process of both the puncture needle and the indwelling needle, thereby improving the puncture effect. After simultaneously inserting the puncture needle and the indwelling needle into the patient's body, it automatically removes the puncture needle while retaining the indwelling needle. Furthermore, after the puncture is completed, the device body automatically separates from the pump body, eliminating the need for repeated assembly and reducing the operational difficulty of the device.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A transmitter for an indwelling needle of an insulin pump includes a pump body and a housing. The outer wall of the pump body and the inner wall of the housing are vertically slidably fitted. A sleeve is fixedly connected to the top of the housing. A fixed platform is fixedly connected inside the sleeve. A sliding ring is vertically slidably fitted inside the sleeve. A puncture cylinder is vertically slidably fitted inside the sliding ring. A puncture shell is detachably connected inside the puncture cylinder. A puncture needle is fixedly connected to the bottom of the puncture shell. An indwelling needle is slidably fitted outside the puncture needle. A syringe is fixedly connected outside the indwelling needle. A sliding plate is fixedly connected to the top of the syringe. The sliding plate is vertically slidably fitted with the inner wall of the housing. A first spring is fixedly connected to the bottom of the fixed platform. The bottom of the first spring abuts against the top of the sliding ring. A second spring is fixedly connected to the inner wall of the puncture cylinder. The bottom of the second spring is fixedly connected to the sliding ring. A sliding component for driving the sliding ring to slide vertically is provided inside the sleeve. An adjusting component for adjusting the connection state between the sliding ring and the puncture cylinder is provided on the sliding ring. A limiting component for limiting the position of the indwelling needle is provided on the syringe. The syringe is equipped with a delivery assembly for delivering the medication. The outer casing is equipped with a locking assembly for adjusting the fixed state between the outer casing and the pump body; the mounting platform is equipped with a support assembly for supporting the sliding plate.

[0007] The technical principle of the above solution is as follows: Before puncture, the support assembly limits and supports the sliding plate, the first spring provides support for the sliding ring, and the second spring is compressed. During puncture, the engaging assembly engages the outer shell onto the pump body, and the puncture needle and indwelling needle are aligned at the puncture site. The sliding assembly drives the sliding ring to slide downwards along the sleeve. At this time, the adjusting assembly engages the sliding ring with the puncture cylinder, causing the sliding ring to drive the puncture cylinder to slide down synchronously. The puncture cylinder then drives the puncture shell and puncture needle to slide downwards. At this point, the puncture shell pushes the sliding plate downwards, breaking through the limit of the support assembly. This causes the sliding plate, syringe, and indwelling needle to slide downwards synchronously, allowing the indwelling needle and puncture needle to be inserted into the patient's body. At the same time, the syringe inserts into the limiting component, keeping the sliding plate, syringe, and indwelling needle fixed. At this point, the adjusting component engages the sliding ring with the sleeve and separates the sliding ring from the puncture cylinder. The puncture cylinder loses the limiting effect of the sliding ring, and the second spring immediately pushes the puncture cylinder upwards, causing the puncture needle to slide upwards as well. The puncture needle separates from the indwelling needle. Simultaneously, the engaging component also separates the outer shell from the pump body, completing the puncture.

[0008] The above approach has the following beneficial effects: 1. The present invention, through the design of the sleeve and the sliding ring, can stably drive the puncture needle and the indwelling needle to be implanted into the patient's body, and the sleeve can limit the movement trajectory of the sliding ring, thereby limiting the implantation path of the puncture needle and the indwelling needle and improving the puncture quality.

[0009] 2. Through the design of the mechanical structure, this invention can automatically adjust the engagement state of the outer shell and the pump assembly according to the progress of the puncture. During the puncture process, the engagement between the outer shell and the pump assembly is maintained, so that the puncture is carried out stably. After the puncture is completed, the outer shell and the pump assembly are automatically separated, avoiding additional disassembly operations, effectively reducing the difficulty of the puncture operation and improving the puncture efficiency.

[0010] 3. Through the design of the sliding ring and puncture tube, this invention can automatically remove the puncture needle and retain the indwelling needle while simultaneously implanting the puncture needle and indwelling needle into the patient's body, without the need for additional operations. This ensures the quality of puncture while further improving puncture efficiency.

[0011] Furthermore, the sliding assembly includes several drive slots on the fixed platform, each drive slot having a drive rod that slides vertically within it, with the bottom of each drive rod fixedly connected to the top of the sliding ring; the top of each drive rod is trapezoidal and slides in contact with the top of the fixed platform; the top of the sleeve is provided with a drive assembly for driving the drive rod to slide vertically along the drive slot.

[0012] Beneficial effects: In the initial state, the top of the drive rod is limited by the fixed platform. The drive rod can only be driven after the top of the drive rod is moved above the drive groove. This effectively improves the installability of the device, prevents the drive rod from running incorrectly under gravity, and reduces the interference of environmental factors.

[0013] Furthermore, the drive assembly includes a button that slides vertically onto the top of the sleeve, with the bottom of the button angled; the top of the drive rod is located at the bottom of the button; and the sleeve is provided with a locking assembly to prevent the button from being accidentally pressed.

[0014] Beneficial effect: When the user presses down on the button, the tilted surface of the button will drive the top of the drive rod to move above the drive groove; at this time, the first spring will push the sliding ring and the drive rod to move down along the drive groove, thereby achieving puncture.

[0015] Furthermore, the locking assembly includes a pin, symmetrically formed locking holes on the sleeve, and symmetrically formed through holes on the button. The pin slides laterally with both the locking holes and the through holes.

[0016] Beneficial effects: This solution, through the design of the latch, can effectively prevent users from accidentally pressing the button and causing incorrect drug injection, reducing the risk of human error and further ensuring the safety of the device.

[0017] Furthermore, the adjustment assembly includes several protrusions fixedly connected to the outer wall of the puncture tube, and several elastic frames fixedly connected to the sliding ring, with the protrusions all located within the adjacent elastic frames; a limiting block is fixedly connected to the top of each elastic frame, and the limiting block abuts against the inner wall of the sleeve; and several limiting holes are opened on the sleeve for engaging with the limiting blocks.

[0018] Beneficial effects: In the initial state, because the limiting block abuts against the inner wall of the sleeve, the limiting block will be squeezed above the protrusion, and the protrusion is located in the adjacent elastic frame; when the limiting block slides down and moves to the limiting hole, the limiting effect of the sleeve on the limiting block disappears, and the elastic frame will push the limiting block to move into the limiting hole. At this time, the limiting block and the limiting hole are engaged, and the two protrusions will separate from the elastic frame, thereby fixing the sliding ring to the sleeve and separating it from the puncture tube, realizing the adjustment of the fixed state of the sliding ring and the sleeve.

[0019] Furthermore, the support assembly includes a fixed base with several elastic clamping rods fixedly connected to the bottom, and a puncture cylinder with several sliding grooves for the clamping rods to slide vertically; the bottom of each clamping rod is detachably connected to a sliding plate.

[0020] Beneficial effects: This solution, through the design of the clamping rod, can maintain the relative stability of the fixed platform and the sliding plate before puncture. During puncture, the clamping rod can be squeezed to cause slight deformation, thereby releasing the clamping rod's restriction on the sliding plate, allowing the indwelling needle to move synchronously with the puncture needle to achieve the puncture operation.

[0021] Furthermore, the limiting component includes a limiting ring fixedly connected to the syringe, with the bottom of the limiting ring being inclined; a limiting sleeve is fixedly connected to the inner wall of the pump body, and an inclined elastic baffle is symmetrically fixedly connected to the bottom of the limiting sleeve.

[0022] Beneficial effects: This solution, through the design of a limiting ring and an elastic baffle, uses the elastic baffle to limit the limiting ring, effectively ensuring that the indwelling needle can be stably retained in the implantation position and guaranteeing the quality of puncture.

[0023] Furthermore, the engaging assembly includes an engaging block rotatably connected to the housing, an engaging groove on the outer wall of the pump body, a third spring fixedly connected to the top wall of the housing, the bottom of the third spring being fixedly connected to the top of the engaging block; and a pressing block fixedly connected to the top of the sliding ring, the pressing block being located at the top of the engaging block on the side away from the spring.

[0024] Beneficial effects: This solution, through the design of locking blocks and locking grooves, enables the outer shell and pump body to quickly lock together during injection and automatically separate upon completion of injection, effectively improving puncture efficiency without the need for repeated installation and disassembly.

[0025] Furthermore, the delivery assembly includes a spiral-shaped conduit fixedly connected to the side wall of the syringe, with a connecting block fixedly connected to the end of the conduit away from the syringe, and the connecting block fixedly connected to the pump body.

[0026] Beneficial effects: This solution, through the spiral design of the catheter, can generate a certain pulling force on the syringe before the indwelling needle is inserted, thereby further pulling the indwelling needle into the patient's body when the insertion begins, ensuring the stability of the indwelling needle insertion; at the same time, the spiral catheter will also retract on its own during the indwelling needle insertion process, avoiding obstruction of the movement of other components.

[0027] Furthermore, a sliding rod is fixedly connected to the bottom of the fixed platform, and the puncture cylinder slides vertically with the sliding rod.

[0028] Beneficial effects: This solution, through the design of the sliding rod, can stably limit the sliding trajectory of the puncture cylinder, thereby controlling the insertion trajectory of the indwelling needle and the puncture needle and improving the puncture quality. Attached Figure Description

[0029] Figure 1 This is an isometric view of the transmitter for the indwelling needle of the insulin pump of the present invention.

[0030] Figure 2 This is an isometric view of the drive assembly in the transmitter for the indwelling needle of the insulin pump of the present invention.

[0031] Figure 3 This is a front cross-sectional view of the transmitter for the indwelling needle of the insulin pump according to the present invention.

[0032] Figure 4 This is a side cross-sectional view of the transmitter for the indwelling needle of the insulin pump of the present invention.

[0033] The reference numerals in the accompanying drawings of the instruction manual include: 1. Pump body; 2. Housing; 3. Sleeve; 301. Locking hole; 302. Limiting hole; 4. Button; 5. Pin; 6. Elastic frame; 7. Sliding ring; 8. Drive rod; 9. Puncture tube; 10. First spring; 11. Limiting block; 12. Sliding plate; 13. Syringe; 14. Limiting ring; 15. Indwelling needle; 16. Puncture needle; 17. Fixing platform; 18. Sliding rod; 19. Clamping rod; 20. Second spring; 21. Puncture shell; 22. Pressing block; 23. Elastic baffle; 24. Third spring; 25. Locking block; 26. Connecting block; 27. Guide tube. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The following detailed description illustrates the specific implementation method: Example 1:

[0038] like Figure 1 and Figure 2 As shown, an insulin pump indwelling needle transmitter includes a pump body 1 and a housing 2. The outer wall of the pump body 1 is vertically slidably fitted with the inner wall of the housing 2. A sleeve 3 is fixedly bonded to and connected to the top of the housing 2. A fixing platform 17 is fixedly bonded to the inside of the sleeve 3. A sliding ring 7 is vertically slidably fitted inside the sleeve 3. A puncture cylinder 9 is vertically slidably fitted inside the sliding ring 7. A puncture shell 21 is detachably connected inside the puncture cylinder 9. A puncture needle 16 is fixedly bonded to the bottom of the puncture shell 21. An indwelling needle 15 is slidably fitted outside the puncture needle 16. A syringe 13 is fixedly bonded to the outside of the indwelling needle 15. A sliding plate 12 is fixedly bonded to the top of the syringe 13. The sliding plate 12 is vertically slidably fitted with the inner wall of the housing 2. A first spring 10 is fixedly bonded to the bottom of the fixing platform 17. The bottom of the first spring 10 abuts against the top of the sliding ring 7. A second spring 20 is fixedly bonded to the inner wall of the puncture cylinder 9. The bottom of the second spring 20 is fixedly bonded to the sliding ring 7.

[0039] like Figure 3 As shown, a sliding rod 18 is integrally formed at the bottom of the fixed platform 17, and the puncture cylinder 9 slides vertically with the sliding rod 18. The sliding rod 18 can stably limit the sliding trajectory of the puncture cylinder 9, thereby controlling the insertion trajectory of the indwelling needle 15 and the puncture needle 16 and improving the puncture quality.

[0040] like Figure 4As shown, the fixed platform 17 is provided with a support assembly for supporting the sliding plate 12. The support assembly includes several elastic clamping rods 19 integrally formed on the bottom of the fixed platform 17, and several sliding grooves on the piercing cylinder 9 for vertical sliding of the clamping rods 19; the bottom of each clamping rod 19 is detachably engaged with the sliding plate 12.

[0041] Specifically, in the initial state, the sliding plate 12 will remain stable under the clamping action of the clamping rod 19.

[0042] like Figure 3 and Figure 4 As shown, the sleeve 3 is equipped with a sliding assembly for driving the sliding ring 7 to slide vertically. The sliding assembly includes several driving grooves on the fixed platform 17, each driving groove having a driving rod 8 that slides vertically within it. The bottom of each driving rod 8 is integrally formed with the top of the sliding ring 7; the top of each driving rod 8 is trapezoidal and slides in contact with the top of the fixed platform 17. The top of the sleeve 3 is equipped with a driving assembly for driving the driving rod 8 to slide vertically along the driving grooves. The driving assembly includes a button 4 that slides vertically on the top of the sleeve 3, with the bottom of the button 4 inclined; the tops of the driving rods 8 are all located at the bottom of the button 4.

[0043] Specifically, in the initial state, the trapezoidal portion at the top of the drive rod 8 is located on the end face of the top of the fixed platform 17. Due to the support of the fixed platform 17, the drive rod 8 remains stable, preventing it from sliding down under the influence of gravity. At this time, the first spring 10 is in a compressed and energy-storing state.

[0044] When puncture is required, the user presses button 4, causing button 4 to slide down. At this time, the inclined surface of button 4 will squeeze the drive rod 8 outward, causing the trapezoidal part at the top of the drive rod 8 to detach from the top end face of the fixed platform 17 and align with the drive groove. At this time, since the top of the first spring 10 is still limited by the fixed platform 17, and the drive rod 8 loses the support of the fixed platform 17, the first spring 10, which is in a compressed and energy-storing state, will immediately extend downward, thereby pushing the sliding ring 7 and the drive rod 8 to slide downward.

[0045] like Figure 1 and Figure 4 As shown, the sliding ring 7 is provided with an adjustment assembly for adjusting the connection state between the sliding ring 7 and the puncture cylinder 9. The adjustment assembly includes several protrusions fixedly bonded to the outer wall of the puncture cylinder 9, and several elastic frames 6 fixedly bonded to the sliding ring 7. The protrusions are all located in the adjacent elastic frames 6. The top of each elastic frame 6 is integrally formed with a limiting block 11, which abuts against the inner wall of the sleeve 3. The sleeve 3 has several limiting holes 302 for engaging with the limiting blocks 11.

[0046] Specifically, in the initial state, because the limiting block 11 abuts against the inner wall of the sleeve 3, the elastic frames 6 all bend inward, so that the protrusions are all located in the adjacent elastic frames 6, thereby fixing the sliding ring 7 and the puncture cylinder 9. At this time, the second spring 20 is in a compressed and stored state. When the sliding ring 7 slides down, it will drive the puncture cylinder 9 and the puncture needle 16 to slide down synchronously. At the same time, the puncture cylinder 9 will push the sliding plate 12 to slide down along the inner wall of the outer shell 2. Due to the compression of the sliding plate 12, the clamping rod 19 will deform outward, thereby releasing the limiting effect on the sliding plate 12. When the sliding plate 12 slides down, it will also drive the syringe 13 and the indwelling needle 15 to slide down synchronously, thereby allowing the puncture needle 16 and the indwelling needle 15 to be inserted into the patient's body synchronously.

[0047] During the downward movement of the sliding ring 7, when the limiting block 11 moves to the limiting hole 302, the limiting effect of the sleeve 3 sidewall on the limiting block 11 will immediately disappear, and the elastic frame 6 will quickly rebound outward, causing the limiting block 11 to move into the limiting hole 302, thus preventing the sliding ring 7 from continuing to slide downward. At the same time, due to the rebound of the elastic frame 6, the protrusion will separate from the elastic frame 6, thus causing the sliding ring 7 and the puncture cylinder 9 to change from a fixed state to a separated state. At this time, since the sliding ring 7 is fixed, the second spring 20 will extend upward, thereby pushing the puncture cylinder 9 and the puncture needle 16 to move upward, causing the indwelling needle 15 and the puncture needle 16 to separate. The puncture needle 16 will move upward into the outer shell 2, while the indwelling needle 15 will remain in the patient's body, thus completing the puncture work.

[0048] like Figure 1 and Figure 3 As shown, the syringe 13 is provided with a limiting component for limiting the position of the syringe 13. The limiting component includes a limiting ring 14 fixedly bonded to the syringe 13, the bottom of the limiting ring 14 being inclined; a limiting sleeve is fixedly bonded to the inner wall of the pump body 1, and an inclined elastic baffle 23 is symmetrically fixedly bonded to the bottom of the limiting sleeve.

[0049] Specifically, as the syringe 13 slides downward, the limiting ring 14 also slides down synchronously and squeezes the elastic baffle 23. The elastic baffle 23 will immediately return to its original position after deformation and fit against the syringe 13. At this time, the bottom of the elastic baffle 23 will limit the top section of the limiting ring 14 to prevent the syringe 13 and the indwelling needle 15 from being driven upward due to friction when the puncture needle 16 slides upward, thus ensuring the stable retention of the indwelling needle 15.

[0050] like Figure 1 and Figure 3As shown, the outer casing 2 is provided with a locking assembly for adjusting the fixed state of the outer casing 2 and the pump body 1. The locking assembly includes a locking block 25 rotatably connected inside the outer casing 2, a locking groove on the outer wall of the pump body 1, a third spring 24 fixedly bonded to the inner top wall of the outer casing 2, and the bottom of the third spring 24 fixedly bonded to the top of the locking block 25; a pressing block 22 is fixedly bonded to the top of the sliding ring 7, such as... Figure 3 As shown, the pressing block 22 is located on top of the engaging block 25 on the side away from the third spring 24.

[0051] Specifically, in the initial state, supported by the third spring 24, the bottom of the locking block 25 automatically engages with the locking groove, fixing the outer shell 2 and the pump body 1. When the sliding ring 7 slides downward, the pressing block 22 presses the left side of the locking block 25. Since the locking block 25 is rotatably connected to the inner wall of the outer shell 2, the left side of the locking block 25 rotates downward and the right side rotates upward, thereby compressing the third spring 24 and causing the bottom of the locking block 25 to separate from the locking groove, thus achieving automatic separation of the outer shell 2 and the pump body 1. The entire locking and separation process is highly matched with the puncture process and is carried out synchronously without the need for additional operations, effectively ensuring puncture quality and operational efficiency, and reducing operational difficulty.

[0052] This embodiment, through the design of the sliding plate 12 ring and the puncture cylinder 9, can provide stable drive and support for the puncture process of the puncture needle 16 and the indwelling needle 15, thereby improving the puncture effect. After the puncture needle 16 and the indwelling needle 15 are inserted into the patient's body simultaneously, the puncture needle 16 is automatically removed, while the indwelling needle 15 is retained. After the puncture is completed, the device body is automatically and quickly separated from the pump body 1, without the need for repeated assembly and disassembly, effectively reducing the operational difficulty of the puncture work.

[0053] Example 2:

[0054] Unlike the embodiments described above, as Figure 1 and Figure 4 As shown, the sleeve 3 is provided with a locking component to prevent the button 4 from being accidentally pressed. The locking component includes a pin 5, locking holes 301 symmetrically opened on the sleeve 3, and through holes symmetrically opened on the button 4. The pin 5 slides laterally with both the locking holes 301 and the through holes.

[0055] Specifically, the user can only press button 4 to complete the puncture operation after the pin 5 has been pulled out. This embodiment, through the design of the pin 5, effectively prevents accidental button 4 activation, thus reducing the risk of human error and improving the safety of the device.

[0056] Example 3:

[0057] Unlike the embodiments described above, as Figure 3As shown, the syringe 13 is provided with a delivery assembly for delivering the medicine. The delivery assembly includes a spiral-shaped conduit 27 fixedly bonded to the side wall of the syringe 13. A connecting block 26 is fixedly bonded to the end of the conduit 27 away from the syringe 13, and the connecting block 26 is fixedly connected to the pump body 1.

[0058] Specifically, the spiral catheter 27 can exert a certain pulling force on the syringe 13 before the indwelling needle 15 is implanted, thereby further pulling the indwelling needle 15 into the patient's body when the indwelling needle 15 begins to be implanted, ensuring the stability of the indwelling needle 15 implantation; at the same time, the spiral catheter 27 will also retract on its own during the indwelling needle 15 implantation process to avoid obstructing the movement of other components.

[0059] The medication inside the pump body 1 can be stably delivered to the indwelling needle 15 through the connecting block 26 and the conduit 27 for subsequent medication delivery.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A transmitter for an indwelling needle of an insulin pump, comprising a pump body (1) and a housing (2), wherein the outer wall of the pump body (1) and the inner wall of the housing (2) are vertically slidably fitted, characterized in that, A sleeve (3) is fixedly connected to the top of the outer shell (2). A fixed platform (17) is fixedly connected inside the sleeve (3). A sliding ring (7) is vertically slidably fitted inside the sleeve (3). A puncture cylinder (9) is vertically slidably fitted inside the sliding ring (7). A puncture shell (21) is detachably connected inside the puncture cylinder (9). A puncture needle (16) is fixedly connected to the bottom of the puncture shell (21). An indwelling needle (15) is slidably fitted outside the puncture needle (16). A syringe (13) is fixedly connected to the outside of the indwelling needle (15). A sliding plate (12) is fixedly connected to the top of the syringe (13). The sliding plate (12) is vertically slidably fitted with the inner wall of the outer shell (2). A first spring (10) is fixedly connected to the bottom of the fixed platform (17). The bottom of the first spring (10) abuts against the top of the sliding ring (7). A second spring (20) is fixedly connected to the inner wall of the puncture cylinder (9). The bottom of the second spring (20) is fixedly connected to the sliding ring (7). The sleeve (3) is provided with a sliding component for driving the sliding ring (7) to slide vertically; The sliding ring (7) is provided with an adjustment component for adjusting the connection state between the sliding ring (7) and the puncture tube (9); The syringe (13) is provided with a limiting component for limiting the position of the syringe (13); The syringe (13) is equipped with a delivery assembly for delivering the drug; The outer casing (2) is provided with a locking assembly for adjusting the fixed state of the outer casing (2) and the pump body (1); the fixed platform (17) is provided with a support assembly for supporting the sliding plate (12); The sliding assembly includes several drive slots on the fixed platform (17), each drive slot having a drive rod (8) that slides vertically in the drive slot. The bottom of each drive rod (8) is fixedly connected to the top of the sliding ring (7). The top of each drive rod (8) is trapezoidal and slides in contact with the top of the fixed platform (17). The top of the sleeve (3) is provided with a drive assembly for driving the drive rod (8) to slide vertically along the drive slot. The adjustment assembly includes several protrusions fixedly connected to the outer wall of the puncture tube (9), and several elastic frames (6) fixedly connected to the sliding ring (7). The protrusions are all located in the adjacent elastic frames (6). Limiting blocks (11) are fixedly connected to the top of each elastic frame (6). The limiting blocks (11) abut against the inner wall of the sleeve (3). Several limiting holes (302) are opened on the sleeve (3) for engaging with the limiting blocks (11). The support assembly includes a fixed platform (17) with several elastic clamping rods (19) fixedly connected to the bottom, and several sliding grooves for vertical sliding of the clamping rods (19) on the puncture tube (9); the bottom of the clamping rods (19) is detachably connected to the sliding plate (12). The engaging assembly includes an engaging block (25) rotatably connected inside the housing (2), an engaging groove on the outer wall of the pump body (1), a third spring (24) fixedly connected to the inner top wall of the housing (2), the bottom of the third spring (24) fixedly connected to the top of the engaging block (25); a pressing block (22) fixedly connected to the top of the sliding ring (7), the pressing block (22) being located on the top of the engaging block (25) away from the spring.

2. The transmitter for an indwelling insulin pump needle according to claim 1, characterized in that, The drive assembly includes a button (4) that slides vertically on the top of the sleeve (3), with the bottom of the button (4) set at an angle; the top of the drive rod (8) is located at the bottom of the button (4); the sleeve (3) is provided with a locking assembly to prevent the button (4) from being accidentally pressed.

3. The transmitter for an indwelling insulin pump needle according to claim 2, characterized in that, The locking assembly includes a pin (5), a locking hole (301) symmetrically opened on the sleeve (3), and a through hole symmetrically opened on the button (4). The pin (5) slides laterally with the locking hole (301) and the through hole.

4. The transmitter for an indwelling insulin pump needle according to claim 3, characterized in that, The limiting component includes a limiting ring (14) fixedly connected to the syringe (13), with the bottom of the limiting ring (14) being inclined; a limiting sleeve is fixedly connected to the inner wall of the pump body (1), and an elastic baffle (23) with an inclined arrangement is symmetrically fixedly connected to the bottom of the limiting sleeve.

5. The transmitter for an indwelling insulin pump needle according to claim 4, characterized in that, The delivery assembly includes a spiral-shaped conduit (27) fixedly connected to the side wall of the syringe (13). A connecting block (26) is fixedly connected to the end of the conduit (27) away from the syringe (13). The connecting block (26) is fixedly connected to the pump body (1).

6. The transmitter for an indwelling insulin pump needle according to claim 5, characterized in that, The bottom of the fixed platform (17) is fixedly connected to a sliding rod (18), and the puncture tube (9) slides vertically with the sliding rod (18).

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