Double-joint infusion arm structure

Abstract

The utility model discloses a double-joint infusion arm structure, and belongs to the technical field of medical tower cranes. The infusion arm structure overcomes the defect that in the prior art, when a large number of injection pumps need to be hung on an infusion arm structure of a traditional medical tower crane, the infusion arm structure is prone to skewing under the action of external force. The main body structure of the infusion device comprises an infusion support, a wire arranging device and at least one infusion arm are installed on the infusion support, each infusion arm comprises an infusion arm fixing base, an infusion arm inner joint and an infusion arm outer joint, and the two ends of each infusion arm inner joint are connected with the corresponding infusion arm fixing base and the corresponding infusion arm outer joint respectively. The infusion arm outer joint is connected with the infusion support through an infusion arm locking device, and an infusion arm synchronizing shaft is rotationally connected between the upper infusion arm and the lower infusion arm. The utility model is mainly used for hanging medical equipment such as infusion supports in operating rooms, infusion supports in intensive care units, injection pumps and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical pendants, and in particular relates to a double-joint infusion arm structure installed on a functional column box of a medical pendant. Background Art

[0002] The existing medical pendant infusion arm structure is generally equipped with an infusion pole for hanging infusion bags. The number of external joints and internal joints of the infusion arm is generally one set. The infusion arm fixing seat is connected to the internal joint of the infusion arm through the infusion arm shaft and elastic parts. The internal joint of the infusion arm is connected to the external joint of the infusion arm through the infusion arm shaft and elastic parts, and the infusion stand is locked by a locking knob. Therefore, it has the following disadvantages:

[0003] 1) Since the infusion arm structure of the existing medical pendant is generally equipped with only one set of infusion poles, it is unable to provide sufficient hanging space for medical equipment such as syringe pumps. When the patient's care requires the addition of hanging space for syringe pumps and nutrition pumps, the hanging space cannot be expanded, affecting the nursing effect;

[0004] 2) Since the infusion arm structure of the existing medical pendant is generally equipped with only one set of infusion arm internal joints and one set of infusion arm external joints, when the infusion arm structure needs to hang a large number of syringe pumps, it is easy to tilt under the action of external force, and the syringe pump may be hung unstable and fall;

[0005] 3) If the number of internal and external joints of the infusion arm of the existing medical pendant is increased from one set to two sets in order to improve the structural rigidity, the upper and lower joints may rotate out of sync during the rotation of the infusion arm, affecting the use effect.

[0006] For example, a Chinese utility model patent with authorization announcement number CN 219700118U discloses a bracket and a medical device, which can adjust the angle between the first cantilever and the first mounting seat, the angle between the second cantilever and the first cantilever, and the angle between the second mounting seat and the second cantilever accordingly by rotating the first cantilever, the second cantilever and the second mounting seat, so as to adjust the horizontal position of the medical instrument and the angle with the hanging tower. However, its shortcomings are: there is only one set of infusion poles, which cannot provide sufficient hanging space for medical equipment such as injection pumps, and cannot achieve better locking and positioning of the cantilever. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a double-joint infusion arm structure.

[0008] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0009] A double-joint infusion arm structure includes an infusion rack, on which a wire management device and at least one infusion arm are installed. The infusion arm includes an infusion arm fixed seat, an inner joint of the infusion arm, and an outer joint of the infusion arm. Two ends of the inner joint of the infusion arm are respectively connected to the infusion arm fixed seat and the outer joint of the infusion arm. The outer joint of the infusion arm is connected to the infusion rack through an infusion arm locking device, and an infusion arm synchronizing shaft is rotatably connected between the upper infusion arm and the lower infusion arm.

[0010] Preferably, a fixing block is provided on the infusion arm fixed seat, and a fixing hole for connecting with the functional column box body of the medical suspension tower is provided on the fixing block.

[0011] Preferably, the inner joint of the infusion arm includes an inner joint mold part. The inner joint mold part is rotatably connected to the infusion arm fixed seat through an infusion arm rotating shaft, and a shaft sleeve for lubrication is provided between the infusion arm rotating shaft and the inner joint mold part.

[0012] Preferably, an elastic element I is provided between the upper end surface of the infusion arm rotating shaft and the inner joint mold part, and the lower end of the infusion arm rotating shaft is connected to the infusion arm fixed seat through a screw.

[0013] Preferably, the outer joint of the infusion arm includes an outer joint mold part. The outer joint mold part is rotatably connected to the inner joint of the infusion arm through an infusion arm synchronizing shaft, and an elastic element II is provided between the upper end surface of the infusion arm synchronizing shaft and the outer joint mold part.

[0014] Preferably, the infusion arm locking device includes a locking housing and a locking element. The locking housing is installed on the outer joint of the infusion arm, and the locking housing is connected to the infusion rack through the locking element.

[0015] Preferably, the wire management device is provided with a mounting hole for connecting with the infusion rack and a storage hole for storing wires.

[0016] Preferably, there is at least one storage hole.

[0017] Preferably, both the elastic element I and the elastic element II are elastic retaining rings.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. The present utility model realizes the flexible adjustment and positioning of the infusion pipeline, not only improves the convenience of the infusion operation, but also effectively avoids the entanglement and knotting of the infusion pipeline, and improves the safety and working efficiency of the medical environment;

[0020] 2. By adding a fixing block and a fixing hole on the infusion arm fixed seat, the infusion arm can be quickly and stably connected to the functional column box body of the medical suspension tower, enhancing the versatility and adaptability of the infusion arm, and facilitating the installation and replacement process of the equipment;

[0021] 3. The inner joint of the infusion arm adopts a combination of an inner joint mold part and an infusion arm rotating shaft, and a shaft sleeve is added for lubrication, reducing friction and wear during joint rotation, improving service life, and ensuring smooth and quiet movement of the infusion arm;

[0022] 4. The first elastic element is arranged at the upper end of the infusion arm rotating shaft, providing appropriate resilience and buffering effect for the infusion arm, helping to protect the infusion arm from excessive rotation damage, and ensuring firmness and flexibility of the connection;

[0023] 5. Through the linkage of the outer joint mold part with the inner joint via the infusion arm synchronizing shaft and in cooperation with the second elastic element, the synchronous movement performance of the infusion arm is further optimized, ensuring the coordination of the upper and lower infusion arms, and improving the stability and control accuracy during the infusion process;

[0024] 6. The infusion arm locking device composed of a locking housing and a locking element realizes reliable fixation of the outer joint of the infusion arm to the infusion stand, facilitating users to quickly adjust and lock the position of the infusion arm as needed, and enhancing the stability and safety of the system;

[0025] 7. The mounting holes and storage holes on the cable management device facilitate the assembly of the infusion arm and the infusion stand, effectively manage the wires of devices such as infusion pumps, avoid cable scattering, keep the treatment area clean and beautiful, and improve the professionalism of the hospital environment;

[0026] 8. Using an elastic retaining ring as the elastic element not only simplifies the design, reduces manufacturing costs, but also the elastic retaining ring is easy to install and replace, with simple maintenance, while ensuring stable support and dynamic sealing effect under long-term use;

[0027] In summary, on the basis of the original infusion arm structure, the present utility model adds a dedicated injection pump hanging space, which can better meet the hanging requirements of medical equipment; the number of inner joints and outer joints of the infusion arm is two each, improving system rigidity and ensuring that the overall structure will not produce phenomena such as skewing and overturning under load; at the same time, the infusion arm structure is configured with an infusion arm synchronizing shaft for the upper and lower infusion arm joints, ensuring the rotational synchronism of the upper and lower joints during the rotation of the infusion arm, making the overall system more stable and reliable, with simple structure, convenient assembly, and smooth rotation, and can better meet the clinical infusion and load requirements in cooperation with a medical suspension tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a structural schematic diagram of the present utility model;

[0029] Figure 2 is a structural schematic diagram of the installation of the infusion arm fixing seat and the inner joint of the infusion arm in the present utility model;

[0030] Figure 3This is a cross-sectional view of the inner joint of the infusion arm in the present utility model;

[0031] Figure 4 This is a connection diagram of the inner joint and the outer joint of the infusion arm in the present utility model;

[0032] Figure 5 This is a cross-sectional view of the infusion arm locking device in the present utility model;

[0033] Figure 6 This is a schematic structural diagram when the synchronous shaft of the infusion arm is installed in the present utility model;

[0034] Figure 7 This is a schematic structural diagram of the wire management device in the present utility model.

[0035] In the figure: 1. Infusion arm fixed seat; 2. Inner joint of the infusion arm; 3. Outer joint of the infusion arm; 4. Infusion arm locking device; 5. Infusion arm synchronous shaft; 6. Infusion rack; 7. Wire management device; 11. Fixed hole; 12. Fixed block; 13. Installation hole for the infusion arm rotating shaft; 14. Fixed keyway; 21. Inner joint mold part; 22. First decorative part; 23. Infusion arm rotating shaft; 24. First elastic element; 25. Sleeve; 31. Outer joint mold part; 32. Second decorative part; 34. Second elastic element; 41. Locking housing; 42. Locking element; 71. Installation hole; 72. Storage hole. Detailed implementation manners

[0036] The present utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] As Figure 1 shown, a double-joint infusion arm structure includes an infusion rack 6, a wire management device 7 and at least one infusion arm are installed on the infusion rack 6. The infusion arm includes an infusion arm fixed seat 1, an inner joint 2 of the infusion arm and an outer joint 3 of the infusion arm. The two ends of the inner joint 2 of the infusion arm are respectively connected to the infusion arm fixed seat 1 and the outer joint 3 of the infusion arm. The outer joint 3 of the infusion arm is connected to the infusion rack 6 through an infusion arm locking device 4, and an infusion arm synchronous shaft 5 is rotatably connected between the upper infusion arm and the lower infusion arm. The infusion arms are connected through the infusion arm synchronous shaft 5 to ensure the rotation synchronization of the infusion arm structure during use.

[0039] Embodiment 2:

[0040] As Figure 2As shown in the figure, a double-joint infusion arm structure, which is different from that of Embodiment 1, is characterized in that a fixing block 12 is provided on the infusion arm fixing seat 1, and a fixing hole 11 for connecting with the functional column box body of the medical suspension tower is provided on the fixing block 12; the infusion arm fixing seat 1 is fixed in any one of the four sliding grooves of the functional column box body of the medical suspension tower through the fixing hole 11, and its position can be adjusted up and down along the sliding groove, with simple operation.

[0041] As Figure 3 shown in the figure, the inner joint 2 of the infusion arm includes an inner joint mold part 21, the inner joint mold part 21 is rotatably connected to the infusion arm fixing seat 1 through an infusion arm rotating shaft 23, and a shaft sleeve 25 for lubrication is provided between the infusion arm rotating shaft 23 and the inner joint mold part 21. An elastic element 24 is provided between the upper end surface of the infusion arm rotating shaft 23 and the inner joint mold part 21, and the lower end of the infusion arm rotating shaft 23 is connected to the infusion arm fixing seat 1 by screws, and the force is adjusted through the screws and the elastic element 24.

[0042] Specifically, the inner joint mold part 21 and the decorative part 22 are connected by screws. The inner joint mold part 21 and the infusion arm rotating shaft 23 are in contact assembly through the elastic element 24. The assembly structure is assembled and connected through the infusion arm rotating shaft 23 and the infusion arm rotating shaft installation hole 13 on the infusion arm fixing seat 1, fixed through the fixed key groove 14, and the force is adjusted through the lower side screws. A shaft sleeve 25 is assembled between the infusion arm rotating shaft 23 and the inner joint mold part 21 for lubrication.

[0043] As Figure 4 、 6 shown in the figure, the outer joint 3 of the infusion arm includes an outer joint mold part 31, the outer joint mold part 31 is rotatably connected to the inner joint 2 of the infusion arm through an infusion arm synchronizing shaft 5, and an elastic element 34 is provided between the upper end surface of the infusion arm synchronizing shaft 5 and the outer joint mold part 31, and the contact assembly is carried out through the elastic element 34.

[0044] As Figure 4-5 shown in the figure, the infusion arm locking device 4 includes a locking housing 41 and a locking element 42. The locking housing 41 is installed on the outer joint 3 of the infusion arm, and the locking housing 41 is connected to the infusion rack 6 through the locking element 42. Specifically, the outer joint 3 of the infusion arm and the infusion arm locking device 4 are assembled through set screws for installing the infusion rack 6. The locking housing 41 is installed on the installation hole on the outer joint 3 of the infusion arm, and the locking element 42 is connected to the locking housing 41 by screwing to fix the infusion rack 6.

[0045] As Figure 7As shown in the figure, the wire management device 7 is provided with a mounting hole 71 for connecting with the infusion stand 6 and a storage hole 72 for storing wires, and there is at least one storage hole 72; specifically, the wire management device 7 is connected to the infusion stand 6 through the mounting hole 71, and the wires of instruments such as injection pumps are stored through the storage hole 72, and the storage hole 72 serves to store wires.

[0046] Furthermore, both the first elastic element 24 and the second elastic element 34 are elastic retaining rings. Using elastic retaining rings as elastic elements not only simplifies the design and reduces the manufacturing cost, but also makes the elastic retaining rings easy to install and replace, with simple maintenance. At the same time, it ensures stable support and dynamic sealing effects under long-term use.

Claims

1. A double-jointed infusion arm structure, comprising an infusion stand (6), characterized in that: The infusion stand (6) is equipped with a wire management device (7) and at least one infusion arm, the infusion arm comprising an infusion arm fixing seat (1), an infusion arm inner joint (2) and an infusion arm outer joint (3), the two ends of the infusion arm inner joint (2) are respectively connected to the infusion arm fixing seat (1) and the infusion arm outer joint (3), the infusion arm outer joint (3) is connected to the infusion stand (6) via an infusion arm locking device (4), and an infusion arm synchronization shaft (5) is rotatably connected between the upper infusion arm and the lower infusion arm.

2. The double-joint infusion arm structure according to claim 1, characterized in that: The infusion arm fixing seat (1) is provided with a fixing block (12), and the fixing block (12) is provided with a fixing hole (11) for connecting with a medical pendant functional column box.

3. The double-joint infusion arm structure according to claim 2, characterized in that: The infusion arm inner joint (2) comprises an inner joint mold part (21), the inner joint mold part (21) is rotatably connected to the infusion arm fixing seat (1) via an infusion arm rotating shaft (23), and a shaft sleeve (25) for lubrication is provided between the infusion arm rotating shaft (23) and the inner joint mold part (21).

4. The double-joint infusion arm structure according to claim 3, characterized in that: An elastic element 1 (24) is provided between the upper end surface of the infusion arm rotating shaft (23) and the inner joint mold component (21), and the lower end of the infusion arm rotating shaft (23) is connected to the infusion arm fixing seat (1) via a screw.

5. The double-joint infusion arm structure according to claim 4, characterized in that: The infusion arm external joint (3) comprises an external joint mould part (31), the external joint mould part (31) is rotatably connected to the infusion arm internal joint (2) via an infusion arm synchronizing shaft (5), and a second elastic element (34) is provided between the upper end surface of the infusion arm synchronizing shaft (5) and the external joint mould part (31).

6. The double-joint infusion arm structure according to claim 5, characterized in that: The infusion arm locking device (4) comprises a locking shell (41) and a locking element (42); the locking shell (41) is mounted on the infusion arm external joint (3), and the locking shell (41) is connected to the infusion stand (6) via the locking element (42).

7. The double-joint infusion arm structure according to any one of claims 1 to 6, characterized in that: The wire management device (7) is provided with a mounting hole (71) for connecting to the infusion stand (6) and a storage hole (72) for storing wires.

8. The double-joint infusion arm structure according to claim 7, characterized in that: The storage hole (72) is provided at least at one location.

9. The double-joint infusion arm structure according to any one of claims 4 to 6, characterized in that: The elastic element 1 (24) and the elastic element 2 (34) are both elastic retaining rings.

Images