A medical device implantation tool

Abstract

The utility model relates to the field of medical apparatus and discloses a medical equipment implantation tool to solve the problem that the existing implantation tool is easily triggered unexpectedly. The tool comprises a first cylinder wall, a first opening and a second opening are arranged on the side surface of the first cylinder wall; a second cylinder wall is arranged inside the first cylinder wall and is fixed by the first cylinder wall, and an annular longitudinal space is formed between the first cylinder wall and the second cylinder wall; a first trigger button and a second trigger button are movably arranged in the two openings respectively; an implantation mechanism is arranged in the two openings by the first buckle and the second buckle respectively to limit the axial movement; a rotary lock component is rotatably arranged at the first end of the first cylinder wall and comprises a first stop plate and a second stop plate which extend into the annular longitudinal space. When the rotary lock component is in the first position, the stop plate interferes with the two trigger buttons, and the buttons cannot be pressed; after the rotary lock component is turned to the second position, the interference is removed, the buttons can be pressed to push the two buckles out of the openings, and the implantation mechanism is released. The utility model can be used for the implantation of a blood glucose monitoring sensor.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a medical device implantation tool for implantation operations of instruments, drugs, etc., and particularly related to a button locking mechanism that achieves high safety and convenient operation in a compact space. Background Technology

[0002] In the field of medical devices, one or more trigger buttons are typically required to perform needle dispensing, release, or push operations in order to deliver and implant devices, drugs, or implants. However, existing button mechanisms often suffer from problems such as being prone to accidental activation, lacking reliable locking or unlocking mechanisms, having large tolerances leading to poor tactile feedback, and struggling to balance compactness and safety.

[0003] On the one hand, without an effective anti-accidental touch design, the button is easily pressed accidentally during preparation or transportation, causing premature release of the implant or drug. On the other hand, the locking mechanism may not be secure enough or the unlocking process may be too cumbersome. In addition, the button's fit tolerance and rebound force directly affect the comfort of operation and the release accuracy; being too loose or too tight may cause adverse consequences, and also places higher demands on the miniaturization and manufacturability of the device. Summary of the Invention

[0004] Based on the above problems, the present invention improves the button structure and locking mechanism by constructing a specific annular depth space between the outer and inner cylinder walls and setting a rotatable locking component on the side of the trigger button to achieve a simpler unlocking operation and more reliable button interference, thereby taking into account both preventing accidental touches and compact layout, and meeting the multiple requirements for safety and accuracy in medical implantation or drug delivery.

[0005] This invention provides a compact, secure, and easy-to-operate medical device implantation tool, aiming to effectively avoid common problems in current implantation devices during operation or transportation, such as accidental button activation, cumbersome unlocking, and loosening of mechanisms. The invention forms an annular depth space between an outer first cylindrical wall and an inner second cylindrical wall, and provides a first and second opening on the side of the first cylindrical wall to accommodate the trigger button and implantation mechanism. Simultaneously, a rotatable locking component is provided at the first end, forming a multi-layered protective and guiding structure from the outside in. This ensures operational safety while meeting the requirements for implantation accuracy and compactness.

[0006] Specifically, the present invention includes the following technical solutions: First, the medical device implantation tool includes a first cylindrical wall and a second cylindrical wall disposed inside and fixedly connected to the first cylindrical wall, forming an annular longitudinal space between them for accommodating and supporting the implantation mechanism and the locking mechanism. The first cylindrical wall has a first opening and a second opening on its side, and a first trigger button and a second trigger button are movably installed in the openings respectively. The implantation mechanism is fixedly engaged with the first opening and the second opening via a first latch and a second latch respectively, thereby restricting the implantation mechanism from moving along the axial direction of the second cylindrical wall or the first cylindrical wall, ensuring the accuracy of the implantation depth and position.

[0007] To achieve the dual goals of preventing accidental activation and rapid unlocking, this invention provides a rotatable rotary lock component at the first end of the first cylinder wall. This rotary lock component extends into the annular depth space and includes a first stop plate and a second stop plate. The rotary lock component has a first position and a second position: in the first position, the first and second stop plates interfere with the first and second trigger buttons, preventing the buttons from being pressed; when the rotary lock component rotates to the second position, the interference is released, and when the first or second trigger button is pressed, it can push the first and second latches out of the first and second openings, thereby releasing the implantation mechanism and realizing the required delivery or implantation operation.

[0008] Based on the above basic structure, the present invention is further optimized as follows: Preferably, a gap is reserved between the first buckle and the second buckle and the second cylinder wall, and the first stop plate and the second stop plate can be inserted into the reserved gap between the buckle and the second cylinder wall, which ensures the insertion and rotation of the rotary lock component in a compact space, and at the same time enhances the positioning function of the buckle.

[0009] Preferably, the first and second latches are elastic arms extending along the axial direction of the second cylinder wall, and their ends have tongues that are axially locked to the first or second opening; when the first and second latches are pushed away from the corresponding openings by the push of the trigger button, the tongues disengage from the openings, allowing the implantation mechanism to be released smoothly.

[0010] Preferably, the first cylinder wall and the second cylinder wall can be an integral structure and connected to each other at the first end. This not only reduces the number of parts and assembly difficulty, but also improves the overall stability and axial guiding accuracy.

[0011] Preferably, a shaft groove is formed in the first section of the second cylinder wall, and a rotating shaft rotatably mounted in the shaft groove is provided at the center of the second cylinder wall. This provides the rotary lock component with a reliable pivot point, ensuring smooth switching between the first and second positions.

[0012] Preferably, the first end of the first cylinder wall includes a circumferentially closed limiting opening for limiting the travel range of the rotary lock component when it is in the first position and the second position; the limiting opening can surround a radially protruding damping block, and the rotary lock component is provided with a damping rib that cooperates with it, so that the rotation process has a clear positioning and damping feel, assisting medical staff to quickly confirm the locking / unlocking status.

[0013] Preferably, an annular rim is formed around the outer side of the first end of the first cylinder wall, creating an annular groove between the annular rim and the outer surface of the first cylinder wall. The rotary lock component has a slider that can rotate within the annular groove. When the rotary lock component rotates from the first position to the second position, the slider rotates synchronously with the rotary lock component, achieving a smooth switching between unlocking and locking. Furthermore, at least a portion of the annular rim can be made of elastic material, allowing for elastic radial clearance during slider assembly, reducing installation difficulty and minimizing damage to the latches.

[0014] In summary, through the organic integration and ingenious arrangement of the first cylindrical wall, the second cylindrical wall, the implantation mechanism, the trigger button, and the rotary lock component, this invention can simultaneously achieve multiple functions within a limited space, including preventing accidental activation, rapid unlocking, and precise implantation. The elastic arm cooperation between the buckle and the cylindrical wall, the positioning design of the rotary lock component, and the efficient integration of the annular slide not only make the structure more compact but also provide medical personnel with clear safety feedback and a stable trigger feel during operation, comprehensively improving the performance and reliability of the device in medical device, drug implantation, and other related medical scenarios. Attached Figure Description

[0015] Figure 1 This is a front view of the medical device implantation tool, showing its overall appearance and the layout of the side buttons.

[0016] Figure 2 This is a three-dimensional exploded view of a medical device implantation tool, showing the assembly relationship between the various components.

[0017] Figure 3 It is a longitudinal sectional view of the medical device implantation tool, showing its internal structure and component distribution.

[0018] Figure 4 These are top and bottom views of the medical device implantation tool, showing the annular space and the fit of the cylindrical wall.

[0019] Figure 5 This is a partial 3D schematic diagram of the top rotary lock component, used to lock or unlock the trigger button.

[0020] Figure 6 This is a three-dimensional schematic diagram of the button assembly, showing its assembly with the rotary lock component. Detailed Implementation

[0021] The specific embodiments described below are typical implementations of the present invention based on the claims, used to better understand and illustrate the technical features of the present invention, and are not intended to limit the scope of patent protection of the present invention in any way. Based on the common knowledge and practical needs of those skilled in the art, equivalent or similar modifications and variations can be made to the embodiments, and all such modifications and variations should be considered to fall within the scope of protection of the present invention.

[0022] like Figure 1 As shown, this invention uses a GMS blood glucose meter implantable device 900 as an example for illustration. This device can also be applied to other types of implantable devices (such as insulin pump catheter implanters, or short-term wearable minimally invasive sensors, and other related devices that require subcutaneous implantation and removal). The device 900 has a cylindrical structure, with a protective cover 901 at the bottom and a first trigger button 400 and a second trigger button 500 on each side. When the trigger buttons 400 and 500 are pressed, the automated implantation function of the implantable device 900 is triggered. A rotary lock component 800 is installed on the top of the device 900. The side of the rotary lock component 800 has a circumferentially ... The cylindrical body of the device 900 is provided with a position indicator 822, including a first position 823 indicating the locked position and a second position 824 indicating the unlocked position. When the position cursor 821 is aligned with the position indicator 822, it indicates that the rotary lock component 800 has been rotated to the corresponding locked or unlocked position, thereby realizing the unlocking operation to prevent accidental button activation.

[0023] like Figure 2 and Figure 3 As shown, the blood glucose meter implantable device 900 mainly consists of an outer first cylindrical wall 100, an inner second cylindrical wall 200, an annular longitudinal space 300 formed between the two, a first opening 110 and a second opening 120 disposed on the side of the first cylindrical wall 100, a first trigger button 400 and a second trigger button 500 movably installed in the openings, and a first latch 600 and a second latch 700 fixed in the openings to restrict the axial movement of the implantation mechanism 670. Furthermore, a rotary lock component 800 is provided at the first end 151 (i.e., the front end or top end) of the first cylindrical wall 100, which includes a first stop plate 801 and a second stop plate 802, and can rotate between a first position and a second position to lock or unlock the trigger buttons.

[0024] Furthermore, the axis (labeled as axis ax in the figure) is coaxial with the first cylindrical wall 100, the second cylindrical wall 200, and the implantation mechanism 670. The axis ax extends along the length of the cylindrical body, and in the cross-sectional direction, the axis ax is the center of the circle in the cross-sectional view. The concentric structure of the first cylindrical wall 100 and the second cylindrical wall 200 ensures that the depth space 300 has a uniform annular structure, improving the stability of the implantation mechanism 670, thereby improving the accuracy and reliability of the device during the implantation process.

[0025] Reference Figure 2 In this embodiment, the first cylindrical wall 100 is a cylindrical sleeve with a relatively large outer diameter. To facilitate hand handling and installation of other components, space is reserved near its front end (i.e., the first end 151) for installing the rotary lock component 800.

[0026] An annular rim 130 is provided around the outer side of the first end 151 of the first cylindrical wall 100, forming an annular groove 140 between it and the outer surface of the first cylindrical wall 100. A corresponding slider 803 can be provided on the rotary lock component 800, so that when the rotary lock component 800 rotates between the unlocked and locked states, the slider 803 can move in a circular motion along the annular groove 140. A portion of the annular rim 130 is an elastic rim 131, which will produce a slight elastic clearance when the slider 803 is assembled or subjected to force during rotation, further reducing the difficulty of component assembly and enhancing the smoothness of assembly operations.

[0027] A circumferentially closed limiting opening 101 is provided at the first end 151 of the first cylinder wall 100 to limit the travel range of the rotary lock component 800 when it is in the first position 823 and the second position 824. The limiting opening 101 can surround a radially outwardly protruding damping block 102, and the rotary lock component 800 is provided with a damping rib 804 corresponding to the damping block 102. When the rotary lock component 800 rotates to the predetermined position, the damping rib 804 interacts with the damping block 102 to produce a clear locking or slightly elastic positioning feel, which makes it convenient for medical staff to clearly identify the locked or unlocked state during operation.

[0028] Reference Figure 2 and Figure 3 The second cylindrical wall 200 is coaxially disposed inside the first cylindrical wall 100 and is fixed to the first cylindrical wall 100 by an integral or tightly fitted connection. An annular longitudinal space 300 is formed between the two, which can be used to accommodate functional components such as the implantation mechanism, clips, and stop plates. In this embodiment, the first cylindrical wall 100 and the second cylindrical wall 200 are connected at the first end 151 by integral injection molding.

[0029] Furthermore, the first cylindrical wall 100 and the second cylindrical wall 200 are not directly connected at the second end 152. The second cylindrical wall 200 is fixedly connected to the first cylindrical wall 100 at the first end 151 and is suspended inside the first cylindrical wall 100, thereby forming an annular longitudinal space 300. In this way, an outlet 153 is reserved at the second end 152 so that the implantation mechanism 670 can slide out from the longitudinal space 300.

[0030] A shaft groove 201 is provided at the first end of the second cylinder wall 200 to fit or support the rotating shaft 805 at the center of the rotary lock component 800. The rotating shaft 805 can rotate smoothly within the shaft groove to realize the switching of the rotary lock component 800 between the first position 823 and the second position 824.

[0031] Furthermore, the rotating shaft 805 is located at the center of the rotary lock component 800, serving as a connection and support structure between the rotary lock component 800 and the first end 120. The rotating shaft 805 extends along the axis ax, providing a fulcrum for the rotation of the rotary lock component 800, ensuring its smooth rotation around the axis ax. During operation, the rotating shaft 805, through its engagement with the second cylinder wall 100 or related components, ensures the stability and accuracy of the rotary lock component 800 switching between the first and second positions, thereby enabling effective locking and unlocking operations of the trigger buttons 400 and 500.

[0032] Furthermore, the diameter of the rotating shaft 805 is set to be more than half the diameter of the rotary lock component 800, which effectively reduces the relative tolerance, thereby reducing the impact of the tolerance on the rotation accuracy, ensuring that the rotary lock component 800 maintains higher smoothness during unlocking and locking operations, significantly reducing the occurrence of jamming, and improving the overall reliability and feel of the operation.

[0033] Reference Figure 3 , Figure 4 and Figure 5 The rotary lock component 800 includes a first stop plate 801 and a second stop plate 802, which extend axially and are partially inserted into the annular depth space 300, correspondingly located beside or in the gap between the first latch 600 and the second latch 700. When the rotary lock component 800 is in the first position 823, the stop plate interferes with the first trigger button 400 and the second trigger button 500, and the buttons 400 and 500 cannot be pressed; when it is rotated to the second position 824, the interference is released, the buttons 400 and 500 can be pressed normally, pushing the latches 600 and 700 to release the implantation mechanism 670.

[0034] Reference Figure 2 and Figure 6The first opening 110 and the second opening 120 are respectively located on opposite sides of the first cylinder wall 100 for inserting the first trigger button 400 and the second trigger button 500. Guide flanges or steps may be provided on the inner walls of these two openings 110 and 120 to limit the movement of the trigger buttons to a limited radial direction, thereby ensuring the stability of the pressing direction.

[0035] Both the first trigger button 400 and the second trigger button 500 can be pressed within their respective installation openings 110 and 120. In this embodiment, each button has an inwardly extending push rod structure 410 inside, which is used to transmit force inward when pressed, pushing the first latch 600 and the second latch 700 to elastically deflect radially inward, thereby disengaging from the first opening 110 and the second opening 120.

[0036] Furthermore, the trigger button 400 is an integrated design, with a circular or elliptical shape. It has guide arms 420 on both sides for installation in conjunction with the opening slides of the first cylinder wall 100 or the second cylinder wall 200. The guide arms 420 are also equipped with a hook mechanism to ensure that the trigger button 400 can slide smoothly in a fixed direction and facilitate equipment assembly.

[0037] The implantation device 670 may include a drug or other media storage device, a needle or catheter, etc., for ultimately delivering drugs, tissues or implants. The implantation device 670 is secured to the first opening 110 and the second opening 120 of the first cylindrical wall 100 by a first latch 600 and a second latch 700, respectively.

[0038] The first latch 600 and the second latch 700 can be elastic arm structures that match the second cylindrical wall 200, and have a radial engagement relationship with the first opening 110 or the second opening 120 to prevent the implantation mechanism from moving axially along the second cylindrical wall 200 or the first cylindrical wall 100.

[0039] Furthermore, the ends of the first latch 600 and the second latch 700 are respectively provided with tongues 610 and 710 for locking with the first opening 110 and the second opening 120. When the first trigger button 400 or the second trigger button 500 is pressed, the tongues 610 and 710 are pushed away from the first opening 110 and the second opening 120, thereby releasing the implantation mechanism 670. Under the pushing action of the spring 620, the implantation mechanism 670 moves downward along ax, completing the implantation operation.

[0040] Furthermore, a certain gap 320 is reserved between the first latch 600, the second latch 700, and the second cylinder wall 200. This gap 320 allows the first stop plate 801 and the second stop plate 802 to be inserted into or located therein, providing effective support for the latches and providing the necessary space for the rotation of the rotary lock component 800. In addition, the gap 320 also serves as a space for the first latch 600 and the second latch 700 to deflect axially when the implantation mechanism is released, thereby ensuring smooth and unobstructed elastic deformation and release action of the latches.

[0041] When the implantation operation is to be performed, the button is pressed, which triggers the push rod inside the button to press and cause the latches 600 and 700 to elastically deform outward (or inward), causing the tongue to disengage from the first opening 110 or the second opening 120, thereby releasing the implantation mechanism and completing the expected delivery or implantation process.

[0042] The procedure for performing the implantation is described below.

[0043] During the implantation procedure, refer to Figure 4 The diagram illustrates the working principle of the device in its first and second position states. A cross-sectional view along lines AA and BB clearly shows the specific positions of the stop plates 801 and 802 in the depth space 300 and the limiting opening 101, as well as their interaction with the buttons 400 and 500, the limit plates 801 and 802, and the damping block 102.

[0044] The implantation procedure includes: Step 1. Initial locking: Rotary lock component 800 is in the first position 823. The first stop plate 801 and the second stop plate 802 interfere with the first trigger button 400 and the second trigger button 500, making them unable to be pressed, thus ensuring that they will not be accidentally touched during transportation or storage.

[0045] At this time, in the first position, the first stop plate 801 is located below the damping block 102 and embedded in the limiting opening 101, while the second stop plate 802 is located above the damping block 102 and also embedded in the limiting opening. The relative positions of the first stop plate 801 and the second stop plate 802 with the damping block ensure that the rotary lock component 800 remains stably in the first position, preventing accidental locking. At the same time, the frictional resistance between the damping block and the damping rib 804 further enhances the locking effect of the rotary lock component 800 in the first position, improving the safety and reliability of operation.

[0046] Step 2. Unlock: The user rotates the rotary lock component 800 to the second position 824. At this time, the stop plates 801 and 802 disengage from the trigger buttons 400 and 500, and the buttons are allowed to be pressed radially inward. During the rotation, the damping block and damping rib cooperate with each other to provide tactile positioning during rotation, making it easy for the user to confirm whether the lock is truly unlocked.

[0047] At this point, in the second position, the first stop plate 801 is positioned above the damping block 102 and embedded in the limiting opening 101, while the second stop plate 802 is positioned below the damping block 102 and also embedded in the limiting opening. The relative positions of the first stop plate 801 and the second stop plate 802 with the damping block ensure that the rotary lock component 800 remains stably in the second position, preventing accidental locking. Simultaneously, the frictional resistance between the damping block and the damping rib 804 further enhances the unlocking reliability of the rotary lock component 800 in the second position.

[0048] Step 3. Press the trigger: Press both trigger buttons simultaneously. The push rod inside the corresponding button will push the first buckle 600 or the second buckle 700 to rotate radially inward elastically, causing the buckle tongue to disengage from the first opening 110 or the second opening 120, thereby releasing the implantation mechanism and performing the implantation operation of instruments, drugs, etc.

[0049] This embodiment features numerous technological advancements.

[0050] 1. High security: The rotary lock component 800 switches between its first and second positions to effectively interfere with or release the trigger button. The combination of the damping block and damping rib further enhances the prevention of accidental activation and the accuracy of status recognition.

[0051] 2. Compact and reliable: The annular longitudinal space 300 formed by the first cylindrical wall 100 and the second cylindrical wall 200 arranges components such as buckles and stop plates within a limited volume; in particular, the gap design between the buckles and the second cylindrical wall 200 ensures the compactness and stability of the overall function.

[0052] 3. Simple operation: During implantation, simply rotate to unlock and press the button to release the implantation mechanism, reducing redundant operations and making it easy for medical staff to get started quickly; the sliding cooperation between the annular eaves 130 and the slider 803 further optimizes the smoothness of the rotation process.

[0053] 4. Integrated molding: The integrated molding of the first cylinder wall 100 and the second cylinder wall 200 reduces the number of parts, simplifies the assembly process, and enhances the overall structural rigidity and concentricity.

[0054] In summary, this specific embodiment, by setting a locking component for the implantation mechanism between the outer and inner cylindrical walls, combined with a rotatable locking assembly and an annular sliding groove design, achieves the technical effects of avoiding accidental triggering, simplifying the operation process, and having a compact and reasonable structure, making it suitable for various medical implantation and minimally invasive delivery scenarios. Appropriate modifications and improvements in size, position, and material can be made to each component according to usage requirements, all of which are within the scope of protection of this invention.

Claims

1. A medical device implantation tool, characterized in that, include: The first cylindrical wall has a first opening and a second opening on its side. The second cylindrical wall is disposed inside the first cylindrical wall and is fixed by the first cylindrical wall; An annular longitudinal space is formed between the first cylindrical wall and the second cylindrical wall; The first trigger button and the second trigger button are respectively movably installed in the first opening and the second opening; The implantation mechanism includes a first buckle and a second buckle, which are respectively fixedly engaged in the first opening and the second opening to restrict the implantation mechanism from moving along the axial direction of the second cylindrical wall or the first cylindrical wall; A rotary lock component is rotatably disposed at a first end of the first cylinder wall and includes a first stop plate and a second stop plate extending into the annular longitudinal space. The rotary lock component has a first position and a second position: When in the first position, the first stop plate and the second stop plate interfere with the first trigger button and the second trigger button, making the first trigger button and the second trigger button unable to be pressed; When the rotary lock component rotates from the first position to the second position, the interference is released. When the first trigger button and the second trigger button are pressed, they push the first latch and the second latch out of the first opening and the second opening, releasing the implantation mechanism.

2. The medical device implantation tool according to claim 1, characterized in that, The first and second buckles are respectively reserved with gaps between themselves and the second cylinder wall, and the first stop plate and the second stop plate are respectively inserted into the reserved gaps between the first and second buckles and the second cylinder wall.

3. The medical device implantation tool according to claim 2, characterized in that, The first latch and the second latch are elastic arms extending along the axial direction of the second cylinder wall, and the end of the elastic arm has a tongue that locks axially with the first opening and the second opening; when the first latch and the second latch are pushed away from the first opening and the second opening, the tongue disengages from the corresponding opening.

4. The medical device implantation tool according to claim 1, characterized in that, The first cylindrical wall and the second cylindrical wall are integral structures and are connected at the first end.

5. The medical device implantation tool according to claim 1, characterized in that, The first section of the second cylinder wall forms a shaft groove, and the center of the rotary lock component is located in the shaft groove.

6. The medical device implantation tool according to claim 5, characterized in that, A rotating shaft is provided at the center of the second cylinder wall, and the rotating shaft is rotatably installed in the shaft groove.

7. The medical device implantation tool according to claim 1, characterized in that, The first end of the first cylinder wall includes a circumferentially closed limiting opening, which is used to limit the travel range of the rotary lock component when it is in the first position and the second position.

8. The medical device implantation tool according to claim 7, characterized in that, A radially protruding damping block is provided in the limiting opening, and a damping rib that cooperates with the damping block is provided on the rotary lock component. The first position and the second position are respectively located on both sides of the damping block.

9. The medical device implantation tool according to claim 1, characterized in that, An annular eave is provided on the outer side of the first end of the first cylinder wall, and an annular groove is formed between the annular eave and the outer surface of the first cylinder wall. A slider is provided on the rotary lock component, and the slider is rotatably installed in the annular groove. When the rotary lock component rotates from the first position to the second position, the slider rotates with the rotary lock component in the annular groove to the corresponding position.

10. The medical device implantation tool according to claim 9, characterized in that, At least a portion of the annular eaves is an elastic eaves, used to generate elastic radial clearance when the slider is assembled into the annular groove.

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