Injection positioning device for endocrinology department

Abstract

The invention belongs to the technical field of medical instruments, and particularly discloses an injection positioning device for the endocrinology department, which comprises a mounting ring and a lifting injection ring for clamping an injection pen, and the lifting injection ring can lift along a limiting column vertically arranged on the mounting ring; a first pressure spring for driving the lifting injection ring to descend is arranged between the mounting ring and the lifting injection ring; the force storage clamping mechanism is used for locking the lifting injection ring at the force storage position, the three-point pressing parallel triggering mechanism is used for sensing the contact state with the skin surface, and the torque releasing mechanism is used for releasing the force storage clamping mechanism according to the state of the three-point pressing parallel triggering mechanism. By arranging a set of stored force releasing mechanism with condition locking and triggering functions, only when the device is pressed and clung to the skin and the axis of the injection pen is vertical to the skin, the locking state is released, so that the stored force releasing mechanism is triggered to drive the injection pen to complete the puncture action, and the intradermal injection risk caused by angle inclination is completely eradicated.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an injection positioning device for endocrinology. Background Art

[0002] In the treatment of endocrine system diseases, injection is an extremely common and critical treatment method. Especially for the hundreds of millions of diabetic patients worldwide, insulin replacement therapy is the core of controlling their blood sugar levels and delaying complications. Among them, long-term, high-frequency self-subcutaneous injections through insulin injection pens have become an indispensable part of patients' daily blood sugar management. In existing technical practices, this injection method, which relies entirely on the patient's bare hands, has inherent defects that affect treatment efficacy and safety.

[0003] First, with advances in precision manufacturing, ultra-short needles (4mm and 5mm in length), designed to reduce patient pain during puncture, have become mainstream in clinical practice. Extensive evidence-based medical research indicates that the effectiveness of these needles relies critically on maintaining a perpendicular injection angle between the needle and the skin surface to ensure stable delivery of the medication to the target subcutaneous tissue layer. However, consistently achieving and confirming this perpendicular angle is extremely difficult during self-administration. This challenge is further exacerbated by visual errors and injections in difficult-to-observe areas outside the abdomen (such as the thigh and posterior upper arm). A tilted injection angle can significantly reduce the effective penetration depth of the needle due to geometric constraints, making it highly likely that insulin intended for subcutaneous injection will be mistakenly injected into the dense intradermal layer. This incorrect injection path not only severely compromises blood sugar control due to slow and incomplete absorption, but can also lead to localized adipose tissue hyperplasia, resulting in induration and severe pain, and even leakage of valuable medication due to excessive local pressure.

[0004] Secondly, the act of self-injection itself poses a significant psychological challenge to patients. Needle phobia, anticipation of pain, and fear of procedure failure often lead to muscle tension, hesitation, unstable force, or insufficient force at the moment of puncture. This prevents the needle from penetrating the skin decisively and cleanly in one go, and the operator often subconsciously performs repeated, superficial, tentative punctures. This ineffective procedure not only greatly increases the patient's pain and psychological burden, but also increases the risk of mechanical damage to the skin tissue at the injection site and the risk of secondary infection. Summary of the Invention

[0005] In response to the above situation, the present invention provides an injection positioning device for endocrinology. By setting up a set of force-storage release mechanisms that cooperate with the injection pen and have conditional locking and triggering functions, its locked state is released only when the device is pressed tightly against the skin and the axis of the injection pen is perpendicular to the skin, thereby triggering the force-storage mechanism to drive the injection pen to complete the puncture action, fundamentally eliminating the risk of intradermal injection caused by angle tilt, and freeing the operator from the psychological burden of "needing to exert force to puncture", thereby achieving fast, stable and standardized puncture.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an injection positioning device for endocrinology, comprising a mounting ring and a lifting injection ring for clamping an injection pen, wherein the lifting injection ring can be lifted and lowered along a limiting column vertically arranged on the mounting ring, and a first compression spring for driving the lifting injection ring to descend is provided between the mounting ring and the lifting injection ring; the device also includes a force storage locking mechanism for locking the lifting injection ring in a force storage position, a three-point press parallel trigger mechanism for sensing the contact state with the skin surface, and a torque release mechanism for releasing the force storage locking mechanism according to the state of the three-point press parallel trigger mechanism.

[0007] Furthermore, the force-storing engaging mechanism includes a locking shaft which is provided on the lifting injection ring and can be engaged with and disengaged from a locking hole provided on the limiting column.

[0008] Furthermore, the three-point pressing parallel trigger mechanism includes three hollow pressing columns arranged in an array along the circumference of the mounting ring and capable of independent axial sliding.

[0009] Furthermore, the torque release mechanism includes a swivel coaxially and rotatably arranged on the lifting injection ring, the swivel is cooperatively braked by three hollow pressing columns, and rotates after the brake is released to drive the clamping shaft to disengage from the clamping hole.

[0010] Furthermore, the limiting columns are arranged in a circular array along the axis of the mounting ring, the locking holes are vertically opened on the side of the limiting columns facing the axis of the mounting ring, and the locking shafts are movably arranged in multiple fan-shaped channels opened on the lifting injection ring.

[0011] Furthermore, the force storage locking mechanism also includes a base, a first tension spring and an inclined plate. The base is fixed to the end of the locking shaft away from the locking hole. The first tension spring is connected between the base and the lifting injection ring and is used to drive the locking shaft to engage in the locking hole. The inclined plate is arranged on the base.

[0012] Furthermore, the three-point press parallel trigger mechanism also includes an inner shaft and a second compression spring, the inner shaft is vertically fixed to the lower side of the mounting ring, the hollow pressing column is sleeved on the inner shaft and can slide along its axial direction, the second compression spring is sleeved on the inner shaft and its two ends are respectively abutted against the mounting ring and the hollow pressing column, the hollow pressing column is vertically engaged and slides through the ring wall of the lifting injection ring.

[0013] Furthermore, the torque release mechanism also includes a rail, a trigger rod, a rotating seat and a second tension spring, the rail is fixed to the lower side of the lifting injection ring, the rotating ring is arranged on the lower side of the lifting injection ring through the engagement and rotation of the rail, the rotating seat is arranged on the rotating ring, the second tension spring is connected between the rotating seat and the rail and is used to provide a reset torque, and the trigger rod is vertically arranged on the rotating ring; when the rotating ring rotates under the action of the reset torque, the trigger rod moves along a circular trajectory and moves the inclined plate to drive the clamping shaft away from the clamping hole; the second tension spring and the trigger rod are equal to the number of the limit columns.

[0014] Furthermore, the edge of the rotating ring is provided with three evenly staggered first fan-shaped holes and second fan-shaped holes in a circular array along the axis, and both the first fan-shaped holes and the second fan-shaped holes can allow the hollow pressing column to pass through; when the rotating ring is manually rotated to the torque storage position, the hollow pressing column is surrounded by the first fan-shaped hole; the rotating ring rotates and resets after the rotation lock is released, so that after the trigger rod moves the inclined plate, the hollow pressing column is surrounded by the second fan-shaped hole.

[0015] Furthermore, a fan-shaped groove is provided on the side of the middle of the hollow pressing column facing the axis of the mounting ring; when the hollow pressing column is in the initial position without being pressed, its unopened solid part can block the rotation of the swivel in the first fan-shaped hole; when the three hollow pressing columns are synchronously axially displaced so that the fan-shaped grooves thereon are all at the same height as the outer edge of the ring body of the swivel, the unopened edge of the swivel can rotate freely in the fan-shaped groove to realize the lock release.

[0016] Furthermore, the torque release mechanism also includes an arc-shaped guide plate, which is fixed on the rail and is used to guide the second tension spring in an arc-shaped path when the second tension spring is stretched and contracted.

[0017] Furthermore, it also includes a clamping mechanism provided on the lifting injection ring, the clamping mechanism includes a plurality of supports, propulsion shafts, retaining rings and rotating rods arranged in a circular array along the lifting injection ring, the supports are provided on the outer ring wall of the lifting injection ring, the propulsion shaft is radially slidably engaged and inserted in the lifting injection ring and an arc-shaped clamping plate is provided at its front end, the outer surface of the rear end of the propulsion shaft is provided with a thread, the retaining ring is engaged and rotatably provided on the support, the retaining ring is threadedly connected to the propulsion shaft, and the rotating rod is used to drive the retaining ring to rotate so that the propulsion shaft produces radial displacement.

[0018] Furthermore, the lifting injection ring edge circular array is provided with three rings, the rings are slidably sleeved on the limiting column, the first compression spring is sleeved on the limiting column and the two ends are respectively abutted against the mounting ring and the ring, and the clamping shaft can be vertically clamped through the junction of the lifting injection ring and the ring and penetrate into the ring.

[0019] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The present invention realizes the mandatory vertical calibration of the injection angle by setting up a set of precise mechanical linkage mechanisms, which fundamentally eliminates the risk of intradermal injection caused by angle tilt. The triggering of the device depends on the three-point press parallel trigger mechanism. The three hollow pressing columns in the mechanism must be simultaneously subjected to uniform pressure and produce equal axial displacement, so that the fan-shaped grooves on them are aligned with the ring body of the rotating ring at the same time to release the lock of the torque release mechanism. This design cleverly transforms the geometric condition of "the device is parallel to the skin surface" into the only mechanical condition of "mechanism unlocking". Therefore, the injection action can only be triggered when the user presses the entire device vertically on the skin, ensuring that the injection pen perpendicular to the mounting ring can finally puncture in the correct posture, ensuring that the drug solution is accurately delivered to the subcutaneous tissue, and significantly improving the effectiveness and safety of the treatment.

[0020] (2) The present invention, through the power storage and release mode, frees the user from the psychological burden and operational uncertainty of having to exert force to complete the puncture, and realizes fast, stable and standardized automatic puncture. Before injection, the user pre-compresses the first compression spring by pulling up the lifting injection ring, and locks it with the power storage locking mechanism, thereby pre-storing the energy required for puncture. During injection, the user's action is no longer a "puncture" with fear and hesitation, but simply pressing the device down to fit the skin. Once the vertical condition is met, the power storage locking mechanism is automatically released, and the powerful first compression spring instantly drives the lifting injection ring and the injection pen to complete the puncture with a constant, fast and standardized force and speed. This design not only greatly reduces the patient's pain and psychological fear, avoids repeated attempts and tissue damage caused by improper force, but also ensures that each puncture is crisp and neat, improving the standardization and comfort of the operation.

[0021] (3) The present invention is highly versatile and compatible and can be used with most standardized injection pens on the market. The clamping mechanism of the device is an adjustable universal fixed platform that can stably and reliably clamp the pen bodies of commercially available injection pens of different diameters in a centripetal manner. This design means that the device does not require any special design or modification of existing injection pens. Users can directly install the injection pens they are currently using and are familiar with into the device. This not only greatly reduces the threshold for use and additional costs, and is convenient for patients, but also enables the present invention to be seamlessly integrated into the existing treatment system as an auxiliary tool, and has extremely strong practicality, economy and wide market adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of an injection positioning device for endocrinology proposed by the present invention.

[0023] Figure 2 This is a schematic diagram of the exploded structure of the positional relationship between the injection pen and the mounting ring of an injection positioning device for endocrinology proposed by the present invention.

[0024] Figure 3 This is a schematic diagram of the exploded structure of the positional relationship between the hollow pressing column and the lifting injection ring of an injection positioning device for endocrinology proposed by the present invention.

[0025] Figure 4 This is a structural diagram of the positional relationship between the clamping rail and the rotating ring of an injection positioning device for endocrinology proposed by the present invention.

[0026] Figure 5 This is a structural diagram of the positional relationship between the lifting injection ring and the clamping mechanism of an injection positioning device for endocrinology proposed by the present invention.

[0027] Figure 6 This is a structural diagram of the positional relationship between the force-storing engaging mechanism and the lifting injection ring of an injection positioning device for endocrinology proposed by the present invention.

[0028] Figure 7 This is a schematic diagram of the exploded structure of the positional relationship between the torque release mechanism and the lifting injection ring of an injection positioning device for endocrinology proposed by the present invention.

[0029] Figure 8 for Figure 4 Enlarged view of part A.

[0030] Figure 9 This is a motion trajectory diagram of the trigger rod of the injection positioning device for endocrinology proposed by the present invention.

[0031] Figure 10This is a motion trajectory diagram of the lifting injection ring of the injection positioning device for endocrinology proposed by the present invention.

[0032] Among them, 1. Mounting ring, 11. Limiting column, 2. Lifting injection ring, 21. Sleeve ring, 22. First compression spring, 23. Fan-shaped channel, 3. Power storage locking mechanism, 31. Card shaft, 32. Base, 33. First tension spring, 34. Card hole, 35. Inclined plate, 4. Three-point press parallel trigger mechanism, 41. Inner shaft, 42. Hollow pressing column, 43. Second compression spring, 5. Torque release mechanism, 51. Card rail, 52. Rotating ring, 521. First fan-shaped hole, 522. Second fan-shaped hole, 53. Trigger rod, 54. Fan-shaped groove, 55. Rotating seat, 56. Arc guide plate, 57. Second tension spring, 6. Clamping mechanism, 61. Support, 62. Propulsion shaft, 63. Arc splint, 64. Card ring, 65. Rotating rod, 7. Injection pen.

[0033] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10As shown, the present invention proposes an injection positioning device for endocrinology, whose overall frame is composed of a mounting ring 1 and a lifting injection ring 2. The mounting ring 1 serves as a base, and three limiting columns 11 are vertically arranged in a circumferential array on its lower side. The lifting injection ring 2 is used to indirectly clamp the injection pen 7, and three collars 21 are correspondingly provided on its edge. The collars 21 are slidably sleeved on the limiting columns 11, so that the lifting injection ring 2 can be stably lifted and lowered only along the axial direction of the limiting columns 11. On each limiting column 11, a first compression spring 22 is sleeved, and its two ends respectively abut against the lower surface of the mounting ring 1 and the upper surface of the collar 21. When the lifting injection ring 2 is pulled upward by an external force, the first compression spring 22 is compressed, thereby storing potential energy for subsequent injection puncture actions.

[0037] In order to lock the lifting injection ring 2 in the force storage position after the first compression spring 22 is compressed, the present invention provides a force storage locking mechanism 3, which includes three clamping shafts 31, which are respectively movably arranged in three fan-shaped channels 23 opened on the lifting injection ring 2, and can vertically clamp through the intersection of the lifting injection ring 2 and the sleeve ring 21 and penetrate into the sleeve ring 21. A clamping hole 34 is opened in the middle part of each limit column 11, on the side facing the axis of the mounting ring 1. When the lifting injection ring 2 is pulled up to the predetermined position, the front end of the clamping shaft 31 can be aligned with the clamping hole 34 and clamped therein. The rear end of the clamping shaft 31 (the end away from the clamping hole 34) is fixed with a base 32, and a first tension spring 33 is connected between the base 32 and the lifting injection ring 2. The first tension spring 33 always provides a driving force to ensure that the clamping shaft 31 can automatically and reliably clamp when aligned with the clamping hole 34. A ramp plate 35 is also provided on the base 32, which will participate in the subsequent release action.

[0038] In order to sense the contact status between the device and the skin and determine whether it is vertical, the present invention provides a three-point press parallel trigger mechanism 4, which includes three hollow pressing columns 42 arranged in a circumferential array along the mounting ring 1. Specifically, three inner shafts 41 are vertically fixed to the lower side of the mounting ring 1, and each hollow pressing column 42 is sleeved on the corresponding inner shaft 41 and can slide independently along its axial direction. A second compression spring 43 is sleeved between the mounting ring 1 and each hollow pressing column 42, which is used to push the hollow pressing column 42 to its initial extended position when it is not under pressure. Each hollow pressing column 42 is vertically engaged and slides through the ring wall of the lifting injection ring 2, and its lower end face is used to directly contact the patient's skin.

[0039] In order to release the power storage engaging mechanism 3 according to the state of the three-point pressing parallel trigger mechanism 4, the present invention provides a torque release mechanism 5, the core component of which is a rotating ring 52, which is coaxially and rotatably installed under the lifting injection ring 2 through three rails 51 fixed to the lower side of the lifting injection ring 2. Three rotating seats 55 are provided on the rotating ring 52, and a second tension spring 57 is connected between each rotating seat 55 and a fixed rail 51 to provide a reset torque for the rotating ring 52. When the rotating ring 52 is manually rotated to the power storage position, the second tension spring 57 is stretched to store torsional potential energy. In order to guide the second tension spring 57 to move along a preset arc path when stretching and contracting to avoid interference with the injection pen 7 in the center of the device, an arc-shaped spring 57 is also fixed on the rail 51. The guide plate 56 and the rotating ring 52 are vertically provided with three trigger rods 53, which are located in the fan-shaped channel 23. When the rotating ring 52 rotates under the action of the reset torque, the trigger rod 53 will move along a circular trajectory and move the inclined plate 35 on the base 32 of the card shaft 31 in the power storage locking mechanism 3. Through the conversion effect of the force of the inclined surface, the circular motion of the trigger rod 53 is converted into a linear motion that drives the card shaft 31 radially away from the locking hole 34, thereby disengaging it from the locking hole 34. In order to save stroke and energy, the front end of the card shaft 31 can be designed to be hemispherical. The trigger rod 53 only needs to pull the card shaft 31 out to the critical state where its hemispherical part is still located in the locking hole 34. Subsequently, under the strong spontaneous thrust of the first compression spring 22, the card shaft 31 can automatically and completely get rid of the constraint of the locking hole 34.

[0040] The locking and unlocking logic of the torque release mechanism 5 is realized by the coordinated cooperation of the rotating ring 52 and the three hollow pressing columns 42. The edge of the rotating ring 52 is provided with three evenly staggered first fan-shaped holes 521 and three second fan-shaped holes 522 in a circumferential array along the axis. The first fan-shaped holes 521 and the second fan-shaped holes 522 are of the same shape and size. The position relationship is as follows: when the rotating ring 52 rotates a certain angle (60 degrees), the position of the first fan-shaped hole 521 originally aligned with the hollow pressing column 42 will be replaced by the second fan-shaped hole 522. At the same time, the middle part of each hollow pressing column 42, facing the A fan-shaped groove 54 is provided on one side of the axis of the mounting ring 1, and the matching relationship between these is as follows: when the column body of the hollow pressing column 42 is located in the first fan-shaped hole 521 or the second fan-shaped hole 522, the hollow pressing column 42 can be freely raised and lowered axially without being blocked by the swivel 52, and at this time the column body of the hollow pressing column 42 (the unopened solid part) will prevent the ring body edge (non-opening part) of the swivel 52 from rotating; when the ring body edge (non-opening part) of the swivel 52 is located in the fan-shaped groove 54 of the hollow pressing column 42, the swivel 52 can rotate freely without being blocked by the hollow pressing column 42.

[0041] In order to stably fix the injection pen 7 in the center of the device so that its axis is perpendicular to the plane of the mounting ring 1, the present invention also provides a clamping mechanism 6, which includes a plurality of supports 61 arranged in an array along the circumference of the outer ring wall of the lifting injection ring 2. The propulsion shaft 62 is radially slidably engaged and inserted into the lifting injection ring 2. Its front end is provided with an arc-shaped clamping plate 63 to fit the pen body of the injection pen 7. The rear end outer surface of the propulsion shaft 62 is provided with a thread. A retaining ring 64 is rotatably mounted on the support 61 and is threadedly connected to the threaded section of the propulsion shaft 62. Because the propulsion shaft 62 is constrained by the lifting injection ring 2 and can only slide radially but not rotate, when the retaining ring 64 is driven to rotate by the rotating rod 65, the propulsion shaft 62 will produce a purely radial displacement (extend or retract) under the action of the threaded pair, thereby clamping or releasing the injection pen 7 and ensuring reliable self-locking.

[0042] The specific working process is as follows: The first step is preparation and force accumulation. The operator first turns the device upside down or presses it on a flat surface. The operator causes the three hollow pressing columns 42 to be compressed synchronously and to move against the elastic force of the second compression spring 43 until the fan-shaped grooves 54 thereon are at the same height as the outer edge of the ring body of the swivel 52. At this time, the rotation lock of the swivel 52 is released. Then the swivel 52 is manually rotated to overcome the tension of the second tension spring 57 until the rotating seat 55 thereon is blocked by the adjacent rail 51 and reaches the torque accumulation limit position. At this position, the column body of the hollow pressing column 42 is exactly located in the first fan-shaped hole 521. At this time, the pressure on the hollow pressing column 42 is released. Under the action of the second compression spring 43, it is reset and passes through the first fan-shaped hole 521, and its fan-shaped groove 54 moves to the bottom of the ring body of the swivel 52. Since the solid part of the hollow pressing column 42 will block the rotation of the swivel 52, the swivel 52 is reliably locked in the torque storage state. Subsequently, the operator manually pulls up the lifting injection ring 2 (and the swivel 52 below it) to compress the first compression spring 22 until the card shaft 31 is heard or felt to be "clicked" into the card hole 34 on the limit column 11 under the action of the first tension spring 33, completing the storage of puncture potential energy. At this time, the hollow pressing column 42 will not be driven due to its position.

[0043] The second step is installation and positioning. Insert the injection pen 7 with a preset dose through the center of the mounting ring 1 until its needle tip passes through the channel inside the lifting injection ring 2 and a predetermined distance (to ensure accurate force and distance for subsequent punctures). Then, operate the rotating rods 65 one by one to drive the clamping mechanism 6, and each curved clamp 63 securely clamps the injection pen 7, ensuring its axis is perpendicular to the mounting ring 1.

[0044] The third step is triggering and injection. The lower end of the entire device (i.e., the end faces of the three hollow pressing columns 42) is pressed vertically to the skin of the injection site. During the downward pressing process, the hollow pressing columns 42 first contact the skin and begin to be compressed, and move upward relative to the lifting injection ring 2. The key point is: only when the device is completely perpendicular to the skin surface, the force on the three hollow pressing columns 42 will be uniform, and their axial displacement will be synchronous and equal. When and only when the three hollow pressing columns 42 move upward synchronously, so that the three fan-shaped grooves 54 thereon reach and align with the outer edge of the ring body of the swivel 52 at the same time, the locking of the swivel 52 will be completely released. If the device is tilted, the upward movement of the three hollow pressing columns 42 must be different, and at least one solid part of the hollow pressing column 42 will continue to block the rotation of the swivel 52, making it impossible to Triggering, once the vertical condition is met, the rotating ring 52 is released and rotates rapidly under the action of the reset torque stored in the second tension spring 57. The trigger rod 53 thereon moves accordingly and pushes the inclined plate 35, pulling the card shaft 31 out of the locking hole 34. The lock of the lifting injection ring 2 is instantly released. Under the strong thrust released by the first compression spring 22, the injection pen 7 is driven to move downward quickly and stably, so that its needle completes a standard and neat subcutaneous puncture. At this time, the column of the hollow pressing column 42 is located in the second fan-shaped hole 522 after rotation, so the rotating ring 52 will not drive the hollow pressing column 42 to press down, so that the lifting injection ring 2 slides down relative to the hollow pressing column 42 to achieve puncture. After the puncture is completed, the operator manually presses the drug delivery button at the end of the injection pen 7 to complete the injection of the drug solution.

[0045] Step 4: Reset. After the injection is completed, remove the entire device from the skin, reverse the operation of each component and reset it under the action of the spring, and then you are ready for the next injection operation.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

[0048] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An injection positioning device for endocrinology, comprising a mounting ring (1) and a lifting injection ring (2) for clamping an injection pen (7), characterized in that: The lifting injection ring (2) can be lifted and lowered along a limiting column (11) vertically arranged on the mounting ring (1); a first compression spring (22) is provided between the mounting ring (1) and the lifting injection ring (2) for driving the lifting injection ring (2) to descend; and further comprises a power storage clamping mechanism (3) for locking the lifting injection ring (2) in a power storage position, a three-point pressing parallel triggering mechanism (4) for sensing a contact state with a skin surface, and a torque releasing mechanism (5) for releasing the power storage clamping mechanism (3) according to a state of the three-point pressing parallel triggering mechanism (4); The power storage engaging mechanism (3) comprises a engaging shaft (31) provided on the lifting injection ring (2) and capable of engaging with and disengaging from a engaging hole (34) provided on the limiting column (11); The three-point pressing parallel trigger mechanism (4) comprises three hollow pressing columns (42) arranged in an array along the circumference of the mounting ring (1) and capable of independent axial sliding. The torque release mechanism (5) comprises a rotating ring (52) coaxially and rotatably arranged on the lifting injection ring (2), the rotating ring (52) being braked in coordination with three hollow pressing columns (42) and rotating to drive the clamping shaft (31) to disengage from the clamping hole (34) after the brake is released.

2. The injection positioning device for endocrinology according to claim 1, characterized in that: The limiting columns (11) are arranged in a circular array along the axis of the mounting ring (1), and the locking holes (34) are vertically opened on the side of the limiting columns (11) facing the axis of the mounting ring (1). The locking shafts (31) are movably arranged in a plurality of fan-shaped channels (23) opened on the lifting injection ring (2).

3. The injection positioning device for endocrinology according to claim 2, characterized in that: The force-storing locking mechanism (3) further comprises a base (32), a first tension spring (33) and an inclined plate (35); the base (32) is fixed to an end of the locking shaft (31) away from the locking hole (34); the first tension spring (33) is connected between the base (32) and the lifting injection ring (2) and is used to drive the locking shaft (31) to lock into the locking hole (34); and the inclined plate (35) is provided on the base (32).

4. The injection positioning device for endocrinology according to claim 3, characterized in that: The three-point pressing parallel trigger mechanism (4) further includes an inner shaft (41) and a second compression spring (43), wherein the inner shaft (41) is vertically fixed to the lower side of the mounting ring (1), the hollow pressing column (42) is sleeved on the inner shaft (41) and can slide along its axial direction, the second compression spring (43) is sleeved on the inner shaft (41) and its two ends respectively abut against the mounting ring (1) and the hollow pressing column (42), and the hollow pressing column (42) is vertically engaged and slides through the ring wall of the lifting injection ring (2).

5. The injection positioning device for endocrinology according to claim 4, characterized in that: The torque release mechanism (5) further comprises a clamping rail (51), a trigger rod (53), a rotating seat (55) and a second tension spring (57), wherein the clamping rail (51) is fixed to the lower side of the lifting injection ring (2), the rotating ring (52) is arranged on the lower side of the lifting injection ring (2) by engaging and rotating with the clamping rail (51), the rotating seat (55) is arranged on the rotating ring (52), the second tension spring (57) is connected between the rotating seat (55) and the clamping rail (51) and is used to provide a reset torque, and the trigger rod (53) is vertically arranged on the rotating ring (52); when the rotating ring (52) rotates under the action of the reset torque, the trigger rod (53) moves along a circular trajectory and moves the inclined plate (35) to drive the clamping shaft (31) away from the clamping hole (34); the number of the second tension spring (57) and the trigger rod (53) is equal to the number of the limiting column (11).

6. The injection positioning device for endocrinology according to claim 5, characterized in that: The edge of the rotating ring (52) is provided with three first fan-shaped holes (521) and second fan-shaped holes (522) which are evenly and staggeredly distributed in a circumferential array along the axis. The first fan-shaped holes (521) and the second fan-shaped holes (522) can both allow the hollow pressing column (42) to pass through. When the rotating ring (52) is manually rotated to the torque storage position, the hollow pressing column (42) is surrounded by the first fan-shaped holes (521). After the rotation lock is released, the rotating ring (52) rotates and resets, so that after the trigger rod (53) moves the inclined plate (35), the hollow pressing column (42) is surrounded by the second fan-shaped holes (522).

7. The injection positioning device for endocrinology according to claim 6, characterized in that: A fan-shaped groove (54) is provided on one side of the middle of the hollow pressing column (42) facing the axis of the mounting ring (1); when the hollow pressing column (42) is in an initial position where it is not pressed, its unopened solid part can block the rotation of the rotating ring (52) in the first fan-shaped hole (521); when the three hollow pressing columns (42) are synchronously axially displaced so that the fan-shaped grooves (54) thereon are all at the same height as the outer edge of the ring body of the rotating ring (52), the unopened edge of the rotating ring (52) can freely rotate in the fan-shaped groove (54) to realize locking release.

8. The injection positioning device for endocrinology according to claim 7, characterized in that: The torque release mechanism (5) further comprises an arc-shaped guide plate (56), which is fixed on the clamping rail (51) and is used to guide the second tension spring (57) in an arc-shaped path when the second tension spring (57) is stretched and contracted.

9. The injection positioning device for endocrinology according to claim 8, characterized in that: The invention also includes a clamping mechanism (6) provided on the lifting injection ring (2), wherein the clamping mechanism (6) includes a plurality of supports (61), a propulsion shaft (62), a retaining ring (64) and a rotating rod (65) arranged in an array along the circumference of the lifting injection ring (2), the support (61) is provided on the outer ring wall of the lifting injection ring (2), the propulsion shaft (62) is radially slidably engaged and inserted in the lifting injection ring (2), and an arc-shaped clamping plate (63) is provided at its front end, the outer surface of the rear end of the propulsion shaft (62) is provided with a thread, the retaining ring (64) is engaged and rotatably provided on the support (61), the retaining ring (64) is threadedly connected to the propulsion shaft (62), and the rotating rod (65) is used to drive the retaining ring (64) to rotate so that the propulsion shaft (62) produces radial displacement.

10. The injection positioning device for endocrinology according to claim 9, characterized in that: The lifting injection ring (2) is provided with three collars (21) in a circumferential array on the edge thereof. The collars (21) are slidably sleeved on the limiting column (11). The first compression spring (22) is sleeved on the limiting column (11) and its two ends respectively abut against the mounting ring (1) and the collar (21). The clamping shaft (31) can be vertically engaged to pass through the junction of the lifting injection ring (2) and the collar (21) and penetrate into the collar (21).

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