Cap fitting structure of medical device and medical device
By leveraging the synergistic effect of the flexible control components and connecting components, the problems of medical device caps coming loose during transport and the cumbersome operation have been solved. Stable locking and simplified operation have been achieved, improving the protective efficiency and convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI PAVOL MEDICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-29
Smart Images
Figure CN224301167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and more specifically, to a cap fitting structure for a medical device and a medical device. Background Technology
[0002] In the field of medical equipment, critical components often require caps for protection against contamination and damage. Existing cap connection methods (such as threads, interference fits, and snap-fits) face two major problems during equipment handling and transportation: first, caps are prone to accidental loosening due to vibration, bumps, or collisions, exposing precision interfaces to contamination or damage; second, traditional connection methods are cumbersome to operate (e.g., threads require tightening), laborious (e.g., interference fits require forceful insertion and extraction), or difficult to align (e.g., complex snap-fits), significantly reducing the efficiency and convenience of cap installation and removal before and after handling. Therefore, there is an urgent need for an improved cap mating structure that can reliably lock under handling impacts to prevent accidental detachment, while also enabling quick, effortless, and intuitive installation and removal of the cap, thereby improving equipment protection reliability and operational efficiency. Utility Model Content
[0003] Therefore, this utility model embodiment provides a cap fitting structure and medical device for a medical device, making the cap fixing more convenient and secure.
[0004] To address the aforementioned problems, this utility model provides a cap fitting structure for a medical device. The medical device has a fitting end, and the cap fitting structure connects to the fitting end. The cap fitting structure includes: an elastic control component, which is hollow and has a first opening; a locking component, which is located near the first opening of the elastic control component; and a connecting component, which connects to the fitting end and has a fitting part that mates with the locking component. When the locking component and the fitting part are connected, the locking component is elastically pressed and accommodated by the fitting part, thereby fixing the elastic control component to the connecting component.
[0005] Compared with existing technologies, the technical effects achieved by this solution are as follows: Through the synergistic action of the elastic control component and the connecting component, the locking component is elastically pressed and completely contained within the connecting structure during cap installation, forming a stable mechanical interlock. This structure effectively absorbs vibration energy during equipment handling, preventing locking failure due to continuous vibration; simultaneously, the elastic deformation characteristics make cap installation and removal simpler and more convenient, significantly simplifying the operation process. It is particularly suitable for mobile medical equipment that requires frequent transport, improving clinical work efficiency while ensuring reliable protection.
[0006] In one embodiment of this utility model, the elastic control component is spherical, and the sphere is hollow inside.
[0007] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by setting the elastic control component to be hollow spherical, the internal air can be released by squeezing the elastic control component during use, which makes it easier to disconnect and connect. The pressure difference makes disconnection and connection more convenient and faster.
[0008] In one embodiment of this utility model, the locking assembly further includes: a plurality of first mating members, the plurality of first mating members surrounding one end of the elastic control assembly near the first opening; and an elastic control member disposed on each of the first mating members, the elastic control member being used to mate with the mating part.
[0009] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting multiple first mating parts to surround the structure, the elastic control component can be better fixed. Furthermore, the elastic control parts facilitate easier and faster fixing through their elastic fit, eliminating the need for additional mechanical structures and simplifying the overall structure. In addition, the multiple first mating parts, arranged in a ring, form a multi-level locking unit, which reduces the risk of localized deformation by dispersing locking stress and extending the structural lifespan. The independently set elastic control parts can adaptively compensate for the mating tolerances in different areas, ensuring uniform locking force even under manufacturing errors or thermal expansion and contraction conditions.
[0010] In one embodiment of this utility model, the locking assembly further includes: one end of the elastic control member is connected to the first mating member, and the other end of the elastic control member is disposed away from the first mating member.
[0011] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the elastic control component adopts a cantilever beam layout, that is, one end is fixed to the first mating component and the other end extends freely. During the installation process, only axial pressure needs to be applied to trigger directional bending deformation, so that the protrusion can slide precisely into the limiting groove, thereby making the installation and fixing more convenient and faster.
[0012] In one embodiment of this utility model, the mating part is provided with a limiting space, and a limiting groove is provided in the limiting space; the elastic control member is provided with a protrusion, and the protrusion engages with the limiting groove after the elastic control member is accommodated by the limiting space.
[0013] Compared with existing technologies, the technical effects achieved by this solution are as follows: the protrusion and the limiting groove form a rigid mechanical stop, creating a secondary anti-disengagement barrier on the basis of elastic locking; when extreme impacts cause the elastic component to temporarily fail, the physical engagement of the protrusion and the limiting groove can still maintain a minimum connection strength; at the same time, the locking process produces a clear "click" sound and tactile feedback, providing the operator with a clear indication of proper installation and avoiding transportation risks caused by incomplete locking.
[0014] In one embodiment of this utility model, each first mating part is further provided with a receiving groove, and the receiving groove and the elastic control part are correspondingly arranged so that the elastic control part is received by the receiving groove when it is pressed by the mating part.
[0015] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the receiving groove provides a dedicated storage space for the elastic control component to deform under pressure, so that the elastic control component is completely embedded in the first mating component in the locked state, eliminating the risk of exposed parts being impacted by external forces (such as lateral compression during equipment stacking and transportation), while maintaining the flatness of the inner wall of the first mating component, so that it can rotate better.
[0016] In one embodiment of this utility model, the limiting space is annular and arranged around the first opening; the shapes of the multiple first mating parts are adapted to the annular shape, so that the elastic control component and the connecting component can rotate after being connected.
[0017] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: the annular limiting space and the first mating part of the annular array form a rotary pair mechanism, which allows the elastic control component and the mating part to rotate after mating, thereby enabling the protrusion and the limiting groove to fit together better, making assembly more convenient and faster.
[0018] In one embodiment of this utility model, the elastic control component is made of an elastic anti-slip material.
[0019] Compared to existing technologies, the technical advantages of this solution are as follows: The elastic control component uses medical-grade anti-slip material to ensure reliable grip even under common clinical conditions such as blood-stained gloves or disinfectant residue. The material also possesses resistance to alcohol / hypochlorite corrosion, making it suitable for medical environments requiring repeated disinfection.
[0020] In one embodiment of this utility model, the cap mating structure further includes: an extension portion is provided near the first opening of the elastic control member, and at least one anti-slip structure is provided on the extension portion.
[0021] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the extension forms a dedicated force application lever point, and the anti-slip structure concentrates and enhances the friction of this part, making finger force application more precise and efficient during disassembly, and avoiding component damage caused by improper force application position.
[0022] This utility model also provides a medical device, including: a cap fitting structure as described in any of the above claims; a controller, wherein the fitting end of the controller and the cap fitting structure are detachably connected.
[0023] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the technical effects corresponding to any of the above technical solutions, which will not be elaborated here.
[0024] By adopting the technical solution of this utility model, the following technical effects can be achieved:
[0025] (1) Through the synergistic effect of the elastic control component and the connecting component, the locking component is elastically pressed by the mating part and completely contained within the connecting structure during cap installation, forming a stable mechanical interlock. This structure can effectively absorb vibration energy during equipment handling, preventing locking failure due to continuous vibration; at the same time, the elastic deformation characteristics make the cap installation and removal simpler and more convenient, significantly simplifying the operation process. It is especially suitable for mobile medical equipment that requires frequent transfer, improving clinical work efficiency while ensuring protective reliability;
[0026] (2) By setting the elastic control component to be hollow sphere, the air inside can be released by squeezing the elastic control component during use, so that the connection can be better disengaged. The pressure difference makes disengagement and connection more convenient and quick.
[0027] (3) By setting multiple first mating parts to surround the structure, the elastic control component can be better fixed. At the same time, the elastic control parts make fixing more convenient and quick through their elastic fit, without the need for additional mechanical structures, thus simplifying the overall structure. In addition, the multiple first mating parts are distributed in a ring to form a multi-level locking unit, which reduces the risk of local deformation by dispersing the locking stress and extends the structural life. The independently set elastic control parts can adaptively compensate for the fit tolerances of different areas, ensuring that uniform locking force is maintained under manufacturing errors or thermal expansion and contraction conditions. Attached Figure Description
[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 A schematic diagram of the cap fitting structure of a medical device provided in an embodiment of this utility model;
[0030] Figure 2 One of the partial structural schematic diagrams of a cap mating structure for a medical device provided in an embodiment of this utility model;
[0031] Figure 3 A second partial structural schematic diagram of a cap fitting structure for a medical device provided in an embodiment of this utility model;
[0032] Figure 4 for Figure 3Enlarged view of region A in the middle;
[0033] Figure 5 A third partial structural schematic diagram of a cap fitting structure for a medical device provided in this embodiment of the present utility model;
[0034] Figure 6 for Figure 5 A cross-sectional view along the CC direction;
[0035] Figure 7 This is a schematic diagram of the medical device.
[0036] Explanation of reference numerals in the attached figures:
[0037] 100. Cap fitting structure of medical device; 110. Elastic control component; 111. First opening; 120. Locking component; 121. First mating part; 122. Elastic control component; 123. Protrusion; 124. Receiving groove; 130. Connecting component; 131. Mating part; 132. Limiting space; 133. Limiting groove; 140. Extension; 200. Medical device; 210. Controller. Detailed Implementation
[0038] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0039] [First Embodiment]
[0040] See Figures 1-7 This utility model provides a cap fitting structure 100 for a medical device. The medical device 200 has a fitting end, and the cap fitting structure connects to the fitting end. The cap fitting structure includes: an elastic control component 110, which is hollow and has a first opening 111; a locking component 120, which is located near the first opening 111 of the elastic control component 110; and a connecting component 130, which connects to the fitting end and has a fitting part 131 that mates with the locking component 120. When the locking component 120 and the fitting part 131 are connected, the locking component 120 is elastically pressed and accommodated by the fitting part 131, thereby fixing the elastic control component 110 to the connecting component 130.
[0041] Specifically, when the medical device 200 is not in use or is being moved, the front end of the device needs to be sealed, which requires the use of a cap fitting structure and a fitting end for connection, wherein the fitting end is part of the medical device 200.
[0042] Specifically, first, align the first mating part 121 with the limiting space 132 and insert it directly into the limiting space 132 until it can no longer be inserted. Then, rotate the elastic control component 110 until you feel the protrusion 123 on the first mating part 121 engage in the limiting groove 133. During the rotation, keep the elastic control component 110 tightly to release the air inside. When the engagement is complete, release the elastic control component 110.
[0043] Specifically, when it is necessary to remove the cap fitting structure, first rotate the elastic control component 110 to make the protrusion 123 disengage from the limiting groove 133. The protrusion 123 has an arc-shaped edge, which makes it easy to disengage from the limiting groove 133 when subjected to rotational force, but it will not automatically disengage from the limiting groove 133. Then, squeeze the elastic control component 110 to release the internal air and remove the cap after the pressure difference is balanced.
[0044] Preferably, through the synergistic action of the elastic control component 110 and the connecting component 130, the locking component 120 is elastically pressed by the mating part 131 and completely contained within the connecting structure during cap installation, forming a stable mechanical interlock. This structure can effectively absorb vibration energy during equipment handling, preventing locking failure due to continuous vibration; at the same time, utilizing elastic deformation characteristics makes cap installation and removal simpler and more convenient, significantly simplifying the operation process. It is especially suitable for mobile medical equipment 200 that requires frequent transport, improving clinical work efficiency while ensuring protective reliability.
[0045] Specifically, the elastic control component 110 is spherical, and the inside of the sphere is hollow.
[0046] Preferably, by setting the elastic control component 110 to be a hollow sphere, the internal air can be released by squeezing the elastic control component 122 during use, which makes it easier to disconnect and connect. The pressure difference makes disconnection and connection more convenient and quick.
[0047] Specifically, the locking assembly 120 further includes: a plurality of first mating parts 121, which surround one end of the elastic control assembly 110 near the first opening 111; and an elastic control part 122, which is disposed on each of the first mating parts 121 and is used to mate with the mating part 131.
[0048] Preferably, by setting multiple first mating parts 121 in a surrounding arrangement, the elastic control component 110 can be better fixed. Simultaneously, the elastic control parts 122 facilitate easier and faster fixing through their elastic engagement, eliminating the need for additional mechanical structures and simplifying the overall structure. Furthermore, the multiple first mating parts 121 arranged in a ring form a multi-level locking unit, reducing the risk of localized deformation by dispersing locking stress and extending the structural lifespan. The independently set elastic control parts 122 can adaptively compensate for mating tolerances in different areas, ensuring uniform locking force even under manufacturing errors or thermal expansion and contraction conditions.
[0049] Specifically, the locking assembly 120 also includes: one end of the elastic control member 122 is connected to the first mating member 121, and the other end of the elastic control member 122 is disposed away from the first mating member 121.
[0050] Preferably, the elastic control component 122 adopts a cantilever beam layout, that is, one end is fixed to the first mating component 121 and the other end extends freely. During the installation process, only axial pressure needs to be applied to trigger directional bending deformation, so that the protrusion 123 can be accurately slid into the limiting groove 133, thereby making the installation and fixing more convenient and quick.
[0051] Specifically, the mating part 131 is provided with a limiting space 132, and a limiting groove 133 is provided in the limiting space 132; the elastic control member 122 is provided with a protrusion 123, and the protrusion 123 cooperates with the limiting groove 133 after the elastic control member 122 is accommodated by the limiting space 132.
[0052] Preferably, the protrusion 123 and the limiting groove 133 form a rigid mechanical stop, establishing a secondary anti-disengagement barrier on the basis of elastic locking: when extreme impact causes the elastic component to temporarily fail, the physical engagement of the protrusion-limiting groove 133 can still maintain a minimum connection strength; at the same time, the locking process produces a clear "click" sound and tactile feedback, providing the operator with a clear indication of the installation in place, avoiding transportation risks caused by incomplete locking.
[0053] Specifically, each first mating part 121 is also provided with a receiving groove 124, and the receiving groove 124 is correspondingly provided with the elastic control part 122, so that the elastic control part 122 is received by the receiving groove 124 when it is pressed by the mating part 131.
[0054] Preferably, the receiving groove 124 provides a dedicated storage space for the elastic control member 122 to deform under pressure, so that the elastic control member 122 is completely embedded in the base of the first mating member 121 in the locked state, eliminating the risk of exposed parts being impacted by external forces (such as lateral compression during equipment stacking and transportation), while maintaining the flatness of the inner wall of the first mating member 121, so that it can rotate better.
[0055] Specifically, the limiting space 132 is annular and is arranged around the first opening 111; the shapes of the multiple first mating parts 121 are adapted to the annular shape, so that the elastic control component 110 can rotate after being connected to the connecting component 130.
[0056] Preferably, the annular limiting space 132 and the first mating part 121 of the annular array form a rotary pair mechanism, so that after the elastic control component 110 and the mating part 131 are mated, they can rotate, thereby enabling the protrusion 123 and the limiting groove 133 to be better engaged, making assembly more convenient and faster.
[0057] Specifically, the elastic control component 110 is made of elastic, non-slip material.
[0058] Preferably, the elastic control component 110 is made of medical-grade anti-slip material to ensure reliable grip even under common clinical conditions such as blood on gloves or disinfectant residue. The material also has resistance to alcohol / hypochlorite corrosion, making it suitable for medical environments requiring repeated disinfection.
[0059] Specifically, the cap fitting structure also includes: the elastic control member 122 is provided with an extension 140 near the first opening 111, and the extension 140 is provided with at least one anti-slip structure.
[0060] Preferably, the extension 140 forms a dedicated force application lever point, and the anti-slip structure concentrates and enhances the friction of this part, making the finger force application more precise and efficient during disassembly, and avoiding component damage caused by improper force application position.
[0061] This utility model also provides a medical device 200, including: a cap fitting structure as described in any of the above claims; a controller 210, wherein the fitting end of the controller 210 and the cap fitting structure are detachably connected.
[0062] The medical device 200 can achieve the technical effects corresponding to any of the above technical solutions, which will not be elaborated here.
[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A cap fitting structure for a medical device, characterized in that, The medical device is provided with a mating end, and the cap mating structure is connected to the mating end. The cap mating structure includes: An elastic control component, wherein the elastic control component is hollow and has a first opening; A locking assembly is disposed near the first opening of the elastic control assembly; A connecting component, wherein the connecting component is connected to the mating end, and the connecting component is provided with a mating part that mates with the locking component; When the locking component and the mating part are connected, the locking component is elastically pressed and accommodated by the mating part, thereby fixing the elastic control component to the connecting component.
2. The cap-fitting structure of the medical device according to claim 1, characterized in that, The elastic control component is spherical, and the sphere is hollow inside.
3. The cap-fitting structure of the medical device according to claim 1, characterized in that, The locking assembly further includes: A plurality of first mating members are disposed around one end of the elastic control component near the first opening; An elastic control element is provided in each first mating element, and the elastic control element is used to mate with the mating part.
4. The cap-fitting structure of the medical device according to claim 3, characterized in that, The locking assembly further includes: One end of the elastic control member is connected to the first mating member, and the other end of the elastic control member is disposed away from the first mating member.
5. The cap-fitting structure of the medical device according to claim 3, characterized in that, The mating part is provided with a limiting space, and a limiting groove is provided within the limiting space; The elastic control member is provided with a protrusion, which engages with the limiting groove after the elastic control member is accommodated by the limiting space.
6. The cap-fitting structure of the medical device according to claim 3, characterized in that, Each of the first mating parts is further provided with a receiving groove, and the receiving groove is correspondingly provided with the elastic control member, so that the elastic control member is received by the receiving groove when it is pressed by the mating part.
7. The cap-fitting structure of the medical device according to claim 5, characterized in that, The limiting space is annular and is arranged around the first opening; The shapes of the plurality of first mating parts are adapted to the annular shape, so that the elastic control component can rotate after being connected to the connecting component.
8. The cap-fitting structure of the medical device according to claim 1, characterized in that, The elastic control component is made of an elastic, non-slip material.
9. The cap-fitting structure of the medical device according to claim 3, characterized in that, The cap fitting structure also includes: The elastic control member has an extension near the first opening, and the extension has at least one anti-slip structure.
10. A medical device, characterized in that, include: The cap mating structure as described in any one of claims 1-9; The controller, wherein the mating end of the controller and the cap mating structure are detachably connected.