An ocular drug delivery aid with adaptive bottle clamping and positioning function

Abstract

This invention belongs to the field of medical device technology, specifically relating to an ocular drug delivery aid with adaptive bottle clamping and positioning functions. It includes a first housing with a pressing port at one end. A fixing block is fixed to one end inside the first housing. First sliding grooves are formed on both sides of the fixing block, and a second sliding groove is fitted inside the first sliding groove. A driving assembly is fitted inside the second sliding groove, comprising a rotating rod, a first gear, and a moving plate. The rotating rod is rotatably connected to the inside of the second sliding groove. This invention achieves adaptive clamping and precise positioning through the weight of the medicine bottle, uses a ratchet and pawl mechanism for mechanical anti-loosening locking to ensure clamping stability, and utilizes an elastic reset structure and an adjustment knob to achieve automatic reset after the medicine bottle is removed, improving operational convenience and device reliability.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an ocular drug delivery aid with adaptive bottle clamping and positioning functions. Background Technology

[0002] Existing ocular drug delivery aids have shortcomings in practical applications, failing to meet patients' needs for precise and convenient medication administration. On one hand, most aids require patients to manually adjust the clamping mechanism to secure the vial, which is cumbersome and makes it difficult to control the appropriate clamping force. Too loose a clamping force can cause the vial to wobble and the opening to shift, making it impossible to accurately align with the eye, resulting in wasted medication or incorrect administration, affecting treatment efficacy. Too tight a clamping force can deform the vial or even damage the packaging. On the other hand, the locking mechanism of existing devices lacks reliability. Under the influence of gravity or hand tremors, the transmission components are prone to reverse disengagement, causing the vial to shift at critical moments, seriously affecting medication safety. Based on these problems, this application proposes an ocular drug delivery aid with adaptive vial clamping and positioning functions to improve these issues. Summary of the Invention

[0003] The purpose of this invention is to provide an ophthalmic drug delivery aid with adaptive bottle clamping and positioning functions. It can achieve adaptive clamping and precise positioning by driving the weight of the medicine bottle, and uses a ratchet and pawl mechanism to achieve mechanical anti-loosening locking to ensure clamping stability. Furthermore, it uses an elastic reset structure and an adjustment knob to achieve automatic reset after the medicine bottle is removed, which improves the ease of operation and the reliability of the device.

[0004] The specific technical solution adopted by this invention is as follows: An ocular drug delivery aid with adaptive bottle clamping and positioning function includes a first housing, a pressing port at one end of the first housing, a fixing block fixed to one end inside the first housing, first sliding grooves on both sides inside the fixing block, a second sliding groove inside the fixing block and located on one side of the first sliding groove, a driving assembly inside the second sliding groove, the driving assembly including a rotating rod, a first gear, and a moving plate, the rotating rod being rotatably connected to the inside of the second sliding groove, one end of the rotating rod penetrating the side wall of the fixing block and extending to the outside of the first housing, the first gear being fixed to the outside of the rotating rod, the moving plate being slidably connected to the inside of the second sliding groove, the moving plate having multiple teeth on the side near the first gear, the multiple teeth being equidistantly distributed, the first gear and the moving plate being meshed, and the two sides of the moving plate being in contact with the inner wall of the fixing block, a second housing fixed to the lower end of the moving plate, the lower end of the second housing having a through hole, and further comprising: A positioning component, wherein the positioning component is assembled inside the first slide groove; A limiting component is mounted on one end of the rotating rod.

[0005] In a preferred embodiment, a fixing rod is fixed to the side wall of the fixing block and inside the second sliding groove, a tension spring is fixed to the lower end of the fixing rod, a connecting plate is fixed inside the moving plate, and the lower end of the tension spring and the upper end of the connecting plate are fixedly connected.

[0006] In a preferred embodiment, the positioning assembly includes a second gear, two racks, two first positioning plates, two clamping plates, and two second positioning plates. The second gear is fixed to the outside of the rotating rod and is located at the end of the rotating rod away from the limiting assembly. The two racks are slidably connected to both sides inside the first groove, and are located at the upper and lower ends of the second gear. The two racks and the second gear are meshed together. The two first positioning plates are fixed to the side of the two racks that are away from each other. The two clamping plates are fixed to one end of the two first positioning plates. The two second positioning plates are fixed to the lower end of the two first positioning plates.

[0007] In a preferred embodiment, the limiting assembly includes a housing, a rotating shaft, a ratchet, a fixing plate, a spring, a rotating rod, a pawl, and an adjusting knob. The limiting assembly has an internal receiving cavity. The housing is fixed to one end of a first housing. One end of the rotating rod extends into the interior of the housing. The rotating shaft is fixed to one end of the rotating rod. The ratchet is fixed to the outside of the rotating shaft. The fixing plate is fixed to the upper end of the interior of the housing. The spring is fixed to the lower end of the fixing plate. The rotating rod is rotatably connected to the interior of the housing. The outside of the rotating rod is fixed to the pawl, and the pawl and ratchet are compatible.

[0008] In a preferred embodiment, one end of the rotating rod passes through the side wall of the housing and extends to the outside of the housing, and an adjustment knob is fixed to one end of the rotating rod, with the adjustment knob located on the outside of the housing.

[0009] In a preferred embodiment, a fixing frame is fixed to the lower end of the interior of the first housing, and grooves are provided at both ends of the outer side of the fixing frame. Ear plates are fixed to both sides of the second housing, and the grooves and ear plates are adapted to each other.

[0010] In a preferred embodiment, a telescopic plate is fixed to one end of the first housing near the pressing port, and the telescopic plate is located above the pressing port. A horizontal plate is sleeved on the outer side of the telescopic plate away from the first housing. A support plate is fixed to one end of the horizontal plate. A first threaded knob is threadedly connected to the upper end of the horizontal plate, and the lower end of the first threaded knob is located at the upper end of the telescopic plate.

[0011] In a preferred embodiment, the support plate has an opening inside, a vertical plate is provided at the lower end of the support plate, and the vertical plate passes through the opening. One end of the support plate is threadedly connected to a second threaded knob, and one end of the second threaded knob is in contact with the side wall of the vertical plate.

[0012] In a preferred embodiment, a fixing frame is fixed to one end of the vertical plate, a first guide groove is provided at one end of the fixing frame, a second guide groove is provided at the other end of the fixing frame, and the first guide groove and the second guide groove are interconnected. A pressure plate is slidably connected inside the second guide groove, and guide plates are fixed on both sides of the pressure plate near the end of the first guide groove. A threaded rod is rotatably connected inside the pressure plate, the upper end of the threaded rod passes through the upper end of the fixing frame, and the threaded rod and the fixing frame are threadedly connected. A handle is fixed to the upper end of the threaded rod.

[0013] The technical effects achieved by this invention are as follows: This invention utilizes the weight of the medicine bottle itself to drive the transmission of related components, eliminating the need for an external power source. This allows the positioning structure to slide towards each other and clamp the outer wall of the bottle, effectively preventing bottle misalignment and ensuring precise alignment between the bottle opening and the eye during medication administration, thus improving the accuracy and safety of eye medication. Simultaneously, the ratchet and pawl engagement of the limiting components mechanically locks the bottle after clamping, effectively preventing the transmission components from loosening in the opposite direction, ensuring the stability of the clamping state, and preventing bottle displacement due to loosening during medication administration, further enhancing the reliability of the medication process. An elastic reset structure is incorporated, which automatically releases elastic potential energy after the bottle is removed, driving the related components to reset upwards, raising the housing, and releasing the positioning structure. This eliminates the need for manual adjustment by the operator, simplifying the operation, improving the ease of use of the device, and quickly preparing for the next medication administration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the fixing block of the present invention; Figure 3 This is a schematic diagram of the structure of the second housing of the present invention; Figure 4 This is a schematic diagram of the structure of the second gear and rack of the present invention; Figure 5 This is a schematic diagram of the internal structure of the first groove of the present invention; Figure 6 This is a schematic diagram of the structure of the driving component of the present invention; Figure 7 This is an exploded view of the positioning component of the present invention; Figure 8This is a schematic diagram of the structure of the limiting component of the present invention; Figure 9 This is a schematic diagram of the adjustment knob of the present invention; Figure 10 This is a schematic diagram of the structure of the fixing frame of the present invention; Figure 11 This is a schematic diagram of the structure of the first guide groove of the present invention; Figure 12 This is a schematic diagram of the structure of the telescopic plate and the cross plate of the present invention.

[0016] The attached diagram lists the components represented by each number as follows: 1. First housing; 2. Pressing port; 3. Fixing block; 4. First slide groove; 5. Second slide groove; 501. Fixing rod; 502. Tension spring; 503. Connecting plate; 6. Drive assembly; 601. Rotating rod; 602. First gear; 603. Moving plate; 7. Second housing; 8. Positioning assembly; 801. Second gear; 802. Rack; 803. First positioning plate; 804. Clamping plate; 805. Second positioning plate; 9. Limiting assembly; 901. Outer shell; 902. Rotating shaft; 9 03. Ratchet; 904. Fixed plate; 905. Spring; 906. Rotating rod; 907. Pawl; 908. Adjusting knob; 10. Fixed frame; 101. Groove; 102. Ear plate; 11. Telescopic plate; 12. Horizontal plate; 13. Support plate; 14. First threaded knob; 15. Vertical plate; 16. Second threaded knob; 17. Fixed bracket; 171. First guide groove; 172. Second guide groove; 173. Pressure plate; 174. Guide plate; 175. Threaded rod; 176. Handle. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] Please see the appendix Figure 1 branch Figure 12As shown, this is the first embodiment of the present invention. This embodiment provides an ocular drug delivery aid with adaptive bottle clamping and positioning functions, including a first housing 1. A pressing port 2 is provided at one end of the first housing 1. A fixing block 3 is fixed to one end inside the first housing 1. First sliding grooves 4 are provided on both sides inside the fixing block 3. The first sliding grooves 4 are fitted inside the first sliding grooves 4. A second sliding groove 5 is provided inside the fixing block 3 and on one side of the first sliding grooves 4. A driving assembly 6 is fitted inside the second sliding groove 5. The driving assembly 6 includes a rotating rod 601, a first gear 602, and a moving plate 603. Rotating rod 601 is rotatably connected to the inside of the second slide groove 5, and one end of rotating rod 601 passes through the side wall of fixed block 3 and extends to the outside of first housing 1. First gear 602 is fixed to the outside of rotating rod 601. Moving plate 603 is slidably connected to the inside of the second slide groove 5. Multiple teeth are provided on the side of moving plate 603 near first gear 602. The multiple teeth are evenly distributed, and first gear 602 and moving plate 603 are meshed. Both sides of moving plate 603 are in contact with the inner wall of fixed block 3. The lower end of moving plate 603 is fixed with second housing 7. The lower end of second housing 7 has a through hole. The system also includes: Positioning component 8 is assembled inside the first slide groove 4; Limiting component 9 is assembled at one end of the rotating rod 601.

[0020] Specifically, during use, when the medicine bottle is placed inside the second housing 7, a through hole is provided at the lower end of the second housing 7. The through hole and the axis of the medicine bottle are precisely aligned with the center of the through hole. The eye drop bottle moves downward under its own weight, causing the second housing 7 to move downward, which in turn causes the moving plate 603 to slide downward in the second slide groove 5. Through the meshing transmission of the teeth evenly distributed on the side wall of the moving plate 603 and the first gear 602, the rotating rod 601 is driven to rotate in the fixed block 3. This, in turn, causes the positioning component 8 assembled in the first slide groove 4 to slide towards each other and adaptively clamp the outer wall of the medicine bottle, achieving precise centering of the bottle body. The medicine bottle is adaptively clamped and positioned. In conjunction with the through hole at the lower end of the second housing 7, it is ensured that the mouth of the medicine bottle is accurately aligned with the eye administration position. At the same time, the limiting component 9 mechanically locks one end of the rotating rod 601 to prevent reverse loosening. During use, the patient's finger directly squeezes the body of the medicine bottle through the pressing port 2 at one end of the first housing 1. Under the action of the squeezing force, the eye drops are dripped vertically into the eye through the through hole at the lower end of the second housing 7, completing the administration. The weight of the medicine bottle triggers the meshing transmission between the first gear 602 and the moving plate 603, driving the positioning component 8 to achieve adaptive clamping within the first slide groove 4. This allows for compatibility with medicine bottles of different diameters without requiring manual adjustment of the clamping force, significantly improving operational convenience. The symmetrical arrangement of the positioning component 8 on both sides within the first slide groove 4, combined with the precise fit and guidance between the moving plate 603 and the inner wall of the fixing block 3, ensures that the axis of the medicine bottle is precisely aligned with the center of the lower through hole of the second housing 7, guaranteeing vertical dripping of the eye drops and effectively preventing medication deviation and waste. The mechanical locking mechanism of the limiting component 9 on one end of the rotating rod 601 effectively prevents unexpected rotation, ensuring the bottle remains stable and does not loosen during medication administration, greatly improving safety.

[0021] In further proposals, such as Figure 6 and Figure 7 A fixing rod 501 is fixed to the side wall of the fixing block 3 and inside the second slide groove 5. A tension spring 502 is fixed to the lower end of the fixing rod 501. A connecting plate 503 is fixed inside the moving plate 603. The lower end of the tension spring 502 and the upper end of the connecting plate 503 are fixedly connected.

[0022] Specifically, when the medicine bottle is placed inside the second housing 7, the weight of the medicine bottle drives the second housing 7 to move downward, causing the moving plate 603 to slide downward in the second slide groove 5. At this time, the tension spring 502 fixed between the fixed rod 501 and the connecting plate 503 is stretched and deformed and stores elastic potential energy. At the same time, the meshing of the teeth on the side wall of the moving plate 603 with the first gear 602 drives the positioning component 8 to complete the clamping action. When the medicine bottle is removed, the tension spring 502 releases its elastic potential energy and generates an upward elastic restoring force. The connecting plate 503 drives the moving plate 603 to automatically reset upward, thereby driving the second housing 7 to rise and causing the positioning component 8 to release the clamp, realizing the automatic return of the mechanism. The tension spring 502, together with the fixed rod 501 and the connecting plate 503, forms an automatic return mechanism, allowing the second housing 7 to automatically return to its original position after the medicine bottle is removed, eliminating the need for manual reverse rotation of the rotating rod 601 and significantly improving operational convenience. Simultaneously, the elastic force of the tension spring 502 balances part of the medicine bottle's weight, keeping the clamping force of the positioning component 8 on the bottle within a moderate range. This ensures stable clamping while preventing excessive compression that could deform the bottle, effectively protecting the structural integrity of the medicine bottle. Furthermore, the extension and contraction of the tension spring 502 can adaptively adjust to the weight of the medicine bottle, providing suitable clamping force for medicine bottles of different sizes and weights, significantly improving the device's versatility and applicability. The separate upper and lower arrangement of the fixed rod 501 and the connecting plate 503 ensures that the tension spring 502 extends and contracts stably in the vertical direction within the second slide groove 5, preventing lateral offset from interfering with the meshing accuracy of the first gear 602 and guaranteeing the reliability of the mechanism's operation.

[0023] In further proposals, such as Figure 4 , Figure 5 and Figure 7 The positioning component 8 includes a second gear 801, two racks 802, two first positioning plates 803, two clamping plates 804, and two second positioning plates 805. The second gear 801 is fixed to the outside of the rotating rod 601 and is located at the end of the rotating rod 601 away from the limiting component 9. The two racks 802 are slidably connected to both sides inside the first slide groove 4 and are located at the upper and lower ends of the second gear 801. The two racks 802 and the second gear 801 are meshed together. The two first positioning plates 803 are fixed to the side of the two racks 802 that is away from each other. The two clamping plates 804 are fixed to one end of the two first positioning plates 803. The two second positioning plates 805 are fixed to the lower end of the two first positioning plates 803.

[0024] Specifically, when the rotating rod 601 is driven to rotate, it drives the second gear 801 to rotate synchronously. Through the meshing transmission between the second gear 801 and the two racks 802, the rotational motion is converted into linear motion, driving the two racks 802 to slide synchronously in opposite directions in the first slide groove 4. This, in turn, drives the two first positioning plates 803 to move towards or in opposite directions, so that the clamping plate 804 fixed at one end of the first positioning plate 803 and the second positioning plate 805 at the lower end cooperate to clamp or release the side wall of the medicine bottle, thus completing the adaptive positioning and fixation of the bottle. The transmission mechanism formed by the second gear 801 and the two racks 802 has a precise transmission ratio and self-locking characteristics, ensuring that the clamping action of the two clamping plates 804 is synchronous, accurate, stable and reliable, effectively preventing loosening. The two racks 802 are arranged symmetrically in the first slide groove 4 and mesh with the second gear 801 respectively, forming a double-sided synchronous drive mechanism, so that the opposite movement distance of the two first positioning plates 803 is completely equal, ensuring that the medicine bottle is always clamped in the center position of the device, achieving high-precision coaxial positioning. The positioning component 8 and the drive component 6 share the rotating rod 601 as the power input source. The single-input double-output transmission is achieved through the coaxial arrangement of the second gear 801 and the first gear 602. The structure is compact and the transmission efficiency is high, requiring no additional power source. The distance between the clamping plate 804 and the second positioning plate 805 can be flexibly designed according to the length of the first positioning plate 803 to adapt to medicine bottles of different heights and diameters, with strong versatility and adaptability.

[0025] In further proposals, such as Figure 5 Figure 8 and Figure 9 The limiting component 9 includes a housing 901, a rotating shaft 902, a ratchet 903, a fixing plate 904, a spring 905, a rotating rod 906, a pawl 907, and an adjusting knob 908. The limiting component 9 has an internal receiving cavity. The housing 901 is fixed to one end of the first housing 1. One end of the rotating rod 601 extends into the housing 901. The rotating shaft 902 is fixed to one end of the rotating rod 601. The ratchet 903 is fixed to the outside of the rotating shaft 902. The fixing plate 904 is fixed to the upper end of the housing 901. The spring 905 is fixed to the lower end of the fixing plate 904. The rotating rod 906 is rotatably connected to the inside of the housing 901. The outside of the rotating rod 906 is fixed to the pawl 907, and the pawl 907 and the ratchet 903 are compatible.

[0026] Specifically, when the rotating rod 601 is driven to rotate and drives the rotating shaft 902 and ratchet 903 to rotate synchronously, the pawl 907 engages and locks with the one-way tooth profile of the ratchet 903 under the elastic preload of the spring 905, preventing the ratchet 903 and the rotating rod 601 from rotating in the opposite direction, thus achieving mechanical locking of the positioning component 8 in the clamping state; when it is necessary to unlock to remove the medicine bottle, the rotating rod 906 is driven to rotate by adjusting the knob 908, which drives the pawl 907 to swing and disengage from the ratchet 903, thus achieving quick unlocking. The one-way engagement mechanism formed by ratchet 903 and pawl 907 provides reliable anti-rotation locking under the continuous elastic force of spring 905, ensuring that the rotating rod 601 will not rotate in the opposite direction due to the weight of the medicine bottle or external vibration during drug administration, thus ensuring the stability and safety of the bottle clamping. Spring 905 is fixed to the upper part of the inner shell 901 by fixing plate 904, and its elastic force continuously acts on rotating rod 906 to keep pawl 907 and ratchet 903 tightly engaged. It also has the function of automatically compensating for tooth surface wear, significantly extending the service life of the limiting mechanism. The design of adjusting knob 908 and rotating rod 906 enables quick manual switching of the locked state. The patient only needs to turn the knob. The adjustment knob 908 can overcome the elasticity of the spring 905 to disengage the pawl 907, making operation simple and ergonomic. The coaxial fixation of the rotating shaft 902 and the rotating rod 601 ensures the concentricity of power transmission. The teeth of the ratchet 903 and the pawl tip of the pawl 907 are hardened, maintaining precise meshing accuracy and wear resistance even under high-frequency use. The housing 901 encapsulates key components such as the ratchet 903, pawl 907, and spring 905 at one end of the first housing 1 to form an independent modular unit. This protects the internal transmission mechanism from external dust contamination and facilitates independent disassembly, maintenance, and replacement of vulnerable parts, improving the overall maintainability of the device.

[0027] In further proposals, such as Figure 8 and Figure 9 One end of the rotating rod 906 passes through the side wall of the housing 901 and extends to the outside of the housing 901. An adjustment knob 908 is fixed to one end of the rotating rod 906, and the adjustment knob 908 is located on the outside of the housing 901.

[0028] Specifically, when it is necessary to unlock, the user manually rotates the adjustment knob 908, which drives the pawl 907 to swing and disengage from the ratchet 903 through the torque transmission of the rotating rod 906, thus achieving quick unlocking; when the adjustment knob 908 is released, the spring 905 applies a restoring force to the rotating rod 906 through the fixing plate 904, driving the adjustment knob 908 to automatically rotate back to reset, so that the pawl 907 re-engages with the ratchet 903 to restore the locked state.

[0029] In further proposals, such as Figures 2 to 4The lower end of the first housing 1 is fixed with a fixing frame 10, and the two ends of the outer side of the fixing frame 10 are provided with grooves 101. The two sides of the second housing 7 are fixed with ear plates 102, and the grooves 101 and ear plates 102 are compatible.

[0030] Specifically, when the second housing 7 carrying the medicine bottle moves downward under the action of gravity, the ear plates 102 fixed on both sides of the second housing 7 slide down along the grooves 101 at both ends of the fixed frame 10. The side walls of the grooves 101 provide lateral limiting and vertical guidance for the ear plates 102, ensuring that the second housing 7 moves up and down stably in the vertical direction and drives the moving plate 603 to move down synchronously. When the second housing 7 descends to the limit position, the lower end of the ear plate 102 abuts against the bottom wall of the groove 101 to form a mechanical limit, preventing excessive downward movement. The precise sliding fit between the ear plate 102 and the groove 101 provides accurate vertical guidance for the second housing 7, ensuring that the second housing 7 does not shift laterally during lifting and lowering, and guaranteeing the meshing transmission accuracy of the moving plate 603, the second slide 5, and the first gear 602. The double-sided limiting of the ear plate 102 by the side wall of the groove 101 effectively suppresses the circumferential swaying and lateral swinging of the second housing 7 under load, significantly improving the stability of bottle clamping and the reliability of mechanism operation. The bottom wall of the groove 101 forms a rigid lower limit, preventing the second housing 7 from moving excessively downward due to bearing an overweight medicine bottle or accidental impact, effectively avoiding the risk of disengagement between the first gear 602 and the moving plate 603.

[0031] In further proposals, such as Figure 1 and Figure 12 A telescopic plate 11 is fixed to one end of the first housing 1 near the pressing port 2, and the telescopic plate 11 is located above the pressing port 2. A horizontal plate 12 is sleeved on the outer side of the telescopic plate 11 away from the first housing 1. A support plate 13 is fixed to one end of the horizontal plate 12. A first threaded knob 14 is threadedly connected to the upper end of the horizontal plate 12, and the lower end of the first threaded knob 14 is located above the telescopic plate 11. An insertion port is opened inside the support plate 13. A vertical plate 15 is provided at the lower end of the support plate 13, and the vertical plate 15 passes through the insertion port. A second threaded knob 16 is threadedly connected to one end of the support plate 13, and one end of the second threaded knob 16 is in contact with the side wall of the vertical plate 15.

[0032] Specifically, by loosening the first threaded knob 14, the horizontal extension position of the horizontal plate 12 on the telescopic plate 11 is adjusted to accommodate the width of the patient's palm. Tightening the first threaded knob 14 achieves friction locking. By loosening the second threaded knob 16, the vertical plate 15 is adjusted to slide up and down in the slot of the support plate 13 to accommodate the height of the patient's facial contour, so that the lower end of the vertical plate 15 fits against the patient's eye socket or cheekbone area as a facial support reference. Tightening the second threaded knob 16 achieves rigid locking. During use, the patient's fingers rest on the support plate 13, and the lower end of the vertical plate 15 abuts against the face, forming a stable multi-point support frame. This ensures that the center of the through hole at the lower end of the second housing 7 is directly above the patient's eye. By pressing the bottle through the pressure port 2, the eye drops are accurately dripped into the eye through the through hole. The lower end of the vertical plate 15 forms a direct facial positioning support point, maintaining a fixed distance from the patient's eye, ensuring that the center of the through hole of the second housing 7 is precisely aligned with the center of the eye, effectively preventing the eye drops from deviating.

[0033] In a further embodiment, as shown in the figure, a fixing frame 17 is fixed to one end of the vertical plate 15. A first guide groove 171 is provided at one end of the fixing frame 17, and a second guide groove 172 is provided at the other end of the fixing frame 17. The first guide groove 171 and the second guide groove 172 are interconnected. A pressure plate 173 is slidably connected inside the second guide groove 172. Guide plates 174 are fixed on both sides of the pressure plate 173 near the end of the first guide groove 171. A threaded rod 175 is rotatably connected inside the pressure plate 173. The upper end of the threaded rod 175 passes through the upper end of the fixing frame 17, and the threaded rod 175 is threadedly connected to the fixing frame 17. A handle 176 is fixed to the upper end of the threaded rod 175.

[0034] Specifically, the threaded rod 175 is driven to rotate within the fixed frame 17 by rotating the handle 176. The rotational motion is converted into linear motion by the threaded engagement between the threaded rod 175 and the fixed frame 17. Simultaneously, under the dual constraints of the sliding guidance of the guide plate 174 and the first guide groove 171 and the sliding engagement of the pressure plate 173 and the second guide groove 172, the pressure plate 173 is vertically raised and lowered along the second guide groove 172 to adjust the distance between its lower end and the support surface. This allows the lower end of the pressure plate 173 to be clamped and fixed to the edge of the table or other external support, achieving stable positioning of the device without hand-holding. The pressure plate 173 and the fixing frame 17 form a clampable fixing structure. The rotation drive of the threaded rod 175 achieves rigid clamping with the external support, so that the device can be stably fixed on the table, bedside, or other fixed objects, realizing hands-free operation and significantly reducing the impact of patient hand tremors on drug administration accuracy. The threaded engagement between the threaded rod 175 and the fixing frame 17 has precision adjustment and self-locking characteristics, which can adapt to the edges of the table or support of different thicknesses. The clamping force is controllable, stable, and reliable, preventing the device from loosening or shifting during operation. The guide plate 174, with its double-sided limiting in the first guide groove 171 and the vertical guidance of the pressure plate 173 in the second guide groove 172, forms a composite constraint, ensuring that the pressure plate 173 does not tilt during the lifting and lowering process, and ensuring parallel fit and uniform force distribution with the support surface. The handle 176 is fixedly connected to the upper end of the threaded rod 175 to form a force-saving lever, allowing the patient to easily rotate and adjust the clamping force with one hand, making operation convenient and requiring no additional tools.

[0035] The working principle of this invention is as follows: When the medicine bottle is placed inside the second housing 7, its own weight drives the second housing 7 to move downwards, causing the moving plate 603 to slide downwards in the second slide groove 5. The meshing of the teeth on the side wall of the moving plate 603 with the first gear 602 drives the rotating rod 601 to rotate. Then, through the meshing of the second gear 801 fixed to the outside of the rotating rod 601 with the two racks 802, the two first positioning plates 803 drive the clamping plate 804 and the second positioning plate 805 to slide towards each other in the first slide groove 4 and adaptively clamp the outer wall of the medicine bottle to achieve precise centering. At the same time, the ratchet 903 in the limiting component 9 rotates synchronously with the rotating rod 601 and is locked by the pawl 907 under the action of the spring 905 to achieve mechanical locking and prevent reverse loosening. The tension spring 502 connecting the fixing rod 501 fixed to the side wall of the fixing block 3 and the connecting plate 503 in the moving plate 603 is stretched and stored. Elastic potential energy; during use, the patient can choose to adjust the horizontal position of the horizontal plate 12 on the telescopic plate 11 by loosening the first threaded knob 14 to adapt to the width of the palm, and loosen the second threaded knob 16 to adjust the vertical position of the vertical plate 15 in the support plate 13 so that the lower end of the vertical plate 15 fits against the face to form support, or drive the threaded rod 175 by rotating the handle 176 to drive the pressure plate 173 to descend along the fixed frame 17 and clamp it to the edge of the table to achieve hand-free fixation. After ensuring that the center of the through hole at the lower end of the second housing 7 is aligned with the eye, the patient can squeeze the bottle body by pressing the pressing port 2 to make the eye drops drip vertically into the eye through the through hole to complete the drug administration; when the medicine bottle is removed, the tension spring 502 releases the elastic potential energy to drive the moving plate 603 to automatically reset upward, drive the second housing 7 to rise and make the positioning component 8 release the clamp, and at the same time, drive the rotating rod 906 by adjusting the knob 908 to make the pawl 907 disengage from the ratchet 903 to achieve unlocking.

[0036] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit described above can be implemented in hardware.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An ocular drug delivery aid device with adaptive bottle clamping and positioning function, characterized in that, include: The first housing (1) has a pressing port (2) at one end and a fixing block (3) is fixed inside the other end of the first housing (1). The fixing block (3) has a first sliding groove (4) on both sides inside, and the first sliding groove (4) is fitted inside the first sliding groove (4). The fixing block (3) has a second sliding groove (5) inside and on one side of the first sliding groove (4). The second slide groove (5) is equipped with a drive assembly (6), which includes a rotating rod (601), a first gear (602) and a moving plate (603). The rotating rod (601) is rotatably connected to the inside of the second slide groove (5), and one end of the rotating rod (601) passes through the side wall of the fixed block (3) and extends to the outside of the first housing (1). The first gear (602) is fixed to the outside of the rotating rod (601). The moving plate (603) is slidably connected to the inside of the second slide groove (5). The moving plate (603) has multiple teeth on the side near the first gear (602), and the multiple teeth are equidistantly distributed. The first gear (602) and the moving plate (603) are meshed and connected, and the two sides of the moving plate (603) are in contact with the inner wall of the fixed block (3). The lower end of the moving plate (603) is fixed with a second housing (7), and the lower end of the second housing (7) is provided with a through hole. Also includes: Positioning component (8), which is assembled inside the first slide groove (4); A limiting component (9) is mounted on one end of a rotating rod (601).

2. The ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 1, characterized in that: A fixing rod (501) is fixed to the side wall of the fixing block (3) and inside the second slide groove (5). A tension spring (502) is fixed to the lower end of the fixing rod (501). A connecting plate (503) is fixed inside the moving plate (603). The lower end of the tension spring (502) and the upper end of the connecting plate (503) are fixedly connected.

3. The ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 1, characterized in that: The positioning assembly (8) includes a second gear (801), two racks (802), two first positioning plates (803), two clamping plates (804), and two second positioning plates (805). The second gear (801) is fixed to the outside of the rotating rod (601) and is located at the end of the rotating rod (601) away from the limiting assembly (9). The two racks (802) are slidably connected to both sides inside the first slide groove (4) and are located at the upper and lower ends of the second gear (801). The two racks (802) are meshed with the second gear (801). The two first positioning plates (803) are fixed to the side of the two racks (802) that are far apart from each other. The two clamping plates (804) are fixed to one end of the two first positioning plates (803). The two second positioning plates (805) are fixed to the lower end of the two first positioning plates (803).

4. The ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 1, characterized in that: The limiting assembly (9) includes a housing (901), a rotating shaft (902), a ratchet (903), a fixing plate (904), a spring (905), a rotating rod (906), a pawl (907), and an adjusting knob (908). The limiting assembly (9) has an internal cavity. The housing (901) is fixed to one end of the first housing (1). One end of the rotating rod (901) extends into the interior of the housing (901). The rotating shaft (902) is fixed... The ratchet (903) is fixed to one end of the rotating rod (601), the ratchet (903) is fixed to the outside of the rotating shaft (902), the fixing plate (904) is fixed to the upper end inside the housing (901), the spring (905) is fixed to the lower end of the fixing plate (904), the rotating rod (906) is rotatably connected to the inside of the housing (901), the outside of the rotating rod (906) is fixed to the pawl (907), and the pawl (907) and the ratchet (903) are compatible.

5. The ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 4, characterized in that: One end of the rotating rod (906) passes through the side wall of the outer shell (901) and extends to the outside of the outer shell (901). An adjustment knob (908) is fixed to one end of the rotating rod (906), and the adjustment knob (908) is located on the outside of the outer shell (901).

6. The ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 1, characterized in that: A fixing frame (10) is fixed at the lower end of the first housing (1). The fixing frame (10) has grooves (101) at both ends on the outside. Ear plates (102) are fixed on both sides of the second housing (7), and the grooves (101) and ear plates (102) are compatible.

7. The ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 1, characterized in that: The first housing (1) is fixed with a telescopic plate (11) at one end near the pressing port (2), and the telescopic plate (11) is located at the upper end of the pressing port (2). A horizontal plate (12) is sleeved on the outer side of the telescopic plate (11) away from the first housing (1). A support plate (13) is fixed at one end of the horizontal plate (12). A first threaded knob (14) is threadedly connected to the upper end of the horizontal plate (12). The lower end of the first threaded knob (14) is located at the upper end of the telescopic plate (11).

8. An ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 7, characterized in that: The support plate (13) has an opening inside, and a vertical plate (15) is provided at the lower end of the support plate (13), and the vertical plate (15) passes through the opening. A second threaded knob (16) is threadedly connected to one end of the support plate (13), and one end of the second threaded knob (16) is in contact with the side wall of the vertical plate (15).

9. An ocular drug delivery aid device with adaptive bottle clamping and positioning function according to claim 8, characterized in that: One end of the vertical plate (15) is fixed with a fixing frame (17). One end of the fixing frame (17) is provided with a first guide groove (171), and the other end of the fixing frame (17) is provided with a second guide groove (172). The first guide groove (171) and the second guide groove (172) are connected to each other. A pressure plate (173) is slidably connected inside the second guide groove (172). Guide plates (174) are fixed on both sides of the pressure plate (173) near the end of the first guide groove (171). A threaded rod (175) is rotatably connected inside the pressure plate (173). The upper end of the threaded rod (175) passes through the upper end of the fixing frame (17), and the threaded rod (175) and the fixing frame (17) are threadedly connected. A handle (176) is fixed on the upper end of the threaded rod (175).

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