A retractable infusion stand suitable for micro-infusion pumps

Abstract

This invention discloses a retractable infusion stand suitable for micro-infusion pumps. The key technical features include an infusion mounting frame and an infusion stand body. The mounting frame comprises an infusion mounting base and an infusion mounting arm. The rotation axis of the infusion mounting arm on the mounting base is vertically oriented, while its rotation direction on the mounting base is horizontal. During rotation, the infusion mounting arm has two states: a retracted state where it is flush against a wall and an extended state where it rotates outwards. The infusion stand body includes an infusion rod, an infusion hook, and a pump holder. Multiple pump holders are provided, each slidably connected longitudinally to the infusion rod. Each pump holder includes an upper pump placement surface for placing the micro-infusion pump and a lower pump pressure surface for limiting the lower micro-infusion pump on the lower pump holder. The pump holder is equipped with a locking and sliding component that can slide or lock onto the infusion rod. This improves the flexibility and applicability of the infusion stand.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a retractable infusion stand suitable for micro-infusion pumps. Background Technology

[0002] A microinfusion pump (or micropump) is a new type of pumping instrument that precisely, minutely, evenly, and continuously infuses small amounts of medication into the body. It is convenient to operate, allowing for timed and quantitative administration. The drug concentration and infusion rate can be adjusted as needed to maintain an effective blood drug concentration. Using micropumps to resuscitate critically ill patients can reduce nurses' workload, improve work efficiency, and accurately, safely, and effectively assist doctors in resuscitation. Currently, the number of medications requiring micropumps with controlled infusion rates is increasing. However, most micropumps are placed on bedside tables in wards, which are often cluttered with various items and have limited space, leading to various inconveniences. Therefore, medical staff are considering placing micropumps on infusion stands. Infusion stands are generally of two types: floor-standing and movable stands, and hanging rail stands. Floor-standing and movable stands take up more space, especially in neurosurgical wards where there are many monitoring devices and cables piled up around the patient's bedside. When a floor-mounted, movable IV stand is moved, it can easily get tangled in the instrument's wiring. Furthermore, after each infusion, the IV stand needs to be moved to another location, which is not only cumbersome but also adds extra work for medical staff to store. On the other hand, after prolonged use, hanging IV stands may experience problems such as uneven sliding and inability to adjust height. Moreover, the movement of hanging IV stands is restricted by the track, and loading and unloading are very inconvenient. All of this makes it very difficult for medical staff to operate the IV stand when administering it to patients. Therefore, we propose a retractable IV stand suitable for micro-infusion pumps. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a retractable infusion stand suitable for micro-infusion pumps to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a retractable infusion stand suitable for micro-infusion pumps, comprising an infusion mounting bracket that can be fixed to a wall and an infusion stand body disposed on the infusion mounting bracket. The infusion mounting bracket includes an infusion mounting base fixed to the wall and an infusion mounting arm rotatably connected to the infusion mounting base. One end of the infusion mounting arm along its length is rotatably connected to the middle of the vertical direction of the infusion mounting base. The infusion stand body is disposed at the other end along the length of the infusion mounting arm. The rotation axis of the infusion mounting arm on the infusion mounting base is vertically arranged, and the rotation direction of the infusion mounting arm on the infusion mounting base is horizontally arranged. During rotation, the infusion mounting arm includes a retracted state when it is attached to the wall and an unfolded state when it rotates outward.

[0005] The infusion stand includes a vertically arranged infusion rod, an infusion hook at the top of the infusion rod, and a pump holder on the delivery rod for placing a micro-pump. Multiple pump holders are provided, and each pump holder is longitudinally slidably connected to the infusion rod. The pump holder includes a pump placement surface located above for stable placement of the micro-pump, and a pump pressure surface located below for pressing and limiting the micro-pump on the pump holder below. The pump holder is provided with a locking sliding component that can slide or lock onto the infusion rod.

[0006] The present invention is further configured such that: the infusion frame body and the infusion mounting frame are separately configured and detachably fixedly connected; the end of the infusion mounting arm is provided with a plug sleeve for vertical insertion of the infusion rod; the plug sleeve is configured as a hollow tubular structure; the inner diameter of the plug sleeve is adapted to the outer diameter of the infusion rod; and the plug sleeve is provided with a locking component that can lock the infusion rod.

[0007] The invention is further configured such that: the locking component includes a locking inner cylinder disposed at the end of the insert sleeve, locking balls disposed on the locking inner cylinder for locking the infusion rod, and a locking outer cylinder axially slidably connected to the locking inner cylinder. The locking inner cylinder is integral with and coaxially disposed with the insert sleeve. Multiple locking balls are disposed, each surrounding the locking inner cylinder. A tapered through-hole is provided along the wall thickness direction of the locking inner cylinder, allowing the locking balls to slide radially. The large-diameter opening of the tapered through-hole faces the locking outer cylinder, and the inner diameter of the large-diameter opening matches the outer diameter of the locking ball. The small-diameter opening of the tapered through-hole faces the infusion rod. The inner diameter of the rod with a small-diameter opening is smaller than the outer diameter of the locking ball. The wall thickness of the locking inner cylinder is smaller than the outer diameter of the locking ball. The locking outer cylinder includes a locking inner wall that can drive the locking ball out from the small-diameter opening of the tapered through hole, and an unlocking inner wall that can accommodate the locking ball. The inner diameter of the locking inner wall is adapted to the outer diameter of the locking inner cylinder. The inner diameter of the unlocking inner wall is larger than the outer diameter of the locking inner cylinder. During the axial sliding of the locking outer cylinder on the locking inner cylinder, when the locking inner wall corresponds to the locking ball, the locking ball can lock the infusion rod. When the unlocking inner wall corresponds to the locking ball, the locking ball can slide outward.

[0008] The present invention is further configured such that: the locking component also includes an elastic element capable of elastically pushing the locking outer cylinder, the elastic element pushing the locking outer cylinder can always maintain the corresponding state between the locking inner wall and the locking ball, and the upward opening of the locking outer cylinder is provided with a sealing element that abuts against the inner wall of the locking outer cylinder and the outer wall of the locking inner cylinder.

[0009] The invention is further configured such that: the retractable infusion stand also includes a drainage frame body disposed on the infusion mounting frame for hooking an external ventricular drainage bag; the drainage frame body is separately disposed from the infusion mounting frame; the drainage frame body includes a vertically disposed drainage rod and a drainage hook disposed on the top of the drainage rod; the infusion mounting arm is provided with an insertion sleeve for vertically inserting the drainage rod; the insertion sleeve is a hollow tubular structure; the inner diameter of the insertion sleeve is adapted to the outer diameter of the drainage rod; the insertion sleeve is also provided with a locking control component that can lock the drainage rod; and the outer wall of the drainage rod is provided with a height scale.

[0010] The present invention is further configured such that: the infusion mounting arm includes a first infusion mounting rod rotatably connected to the infusion mounting base, and a second infusion mounting rod inserted into the first infusion mounting rod; the first infusion mounting rod and the second infusion mounting rod are coaxially and slidably connected; one end of the first infusion mounting rod is rotatably connected to the infusion mounting base; the second infusion mounting rod is inserted into the other end of the first infusion mounting rod; and the infusion frame is located at the end of the second infusion mounting rod that extends out of the first infusion mounting rod.

[0011] The present invention is further configured such that: the infusion mounting base is provided with a hinge block for rotatably connecting the infusion mounting arm; two hinge blocks are provided and the two hinge blocks are respectively located on the upper and lower sides of the infusion mounting arm; the infusion mounting arm is embedded with a resistance pad that can always maintain contact with the hinge block; the resistance pad can increase the friction between the infusion mounting arm and the hinge block during rotation.

[0012] The invention is further configured such that: the locking sliding component includes a regulating seat fixed on the pump frame seat, a clamping arm rotatably connected to the regulating seat, a clamping block slidably connected to the clamping arm, and a regulating screw screwed to the regulating seat for driving the clamping block to slide on the clamping arm. The end of the regulating screw is axially limited and circumferentially rotatably connected to the clamping block. During the rotation of the regulating screw on the regulating seat, it can drive the clamping block to reciprocate on the clamping arm. The clamping arm is configured in a J-shape. The end of the vertical section of the clamping arm is hinged to the regulating seat. The end of the arc section of the clamping arm faces the infusion rod. There are two clamping arms, which are symmetrically arranged on both sides of the regulating seat. The two clamping arms are inclined to both sides of the regulating seat in a V-shape. The two ends of the clamping block are slidably connected to the vertical sections of the two clamping arms respectively. During the process of the regulating screw driving the clamping block to slide on the clamping arm, the clamping block can drive the two clamping arms to move closer or further apart.

[0013] The present invention is further configured such that: the end of the arc-shaped segment of the clamping arm is provided with an abutment post that can increase the contact area with the infusion rod; the middle part of the clamping block facing the infusion rod is also provided with an abutment post; the length direction of the abutment post is consistent with the length direction of the infusion rod; and a friction element that can increase the friction with the infusion rod is embedded in the side of the abutment post facing the infusion rod.

[0014] In summary, the present invention has the following beneficial effects: the infusion stand can be used to hook infusion bags or bottles, to stably place micro-infusion pumps, and even to place multiple micro-infusion pumps simultaneously, thereby greatly improving the flexibility and applicability of the infusion stand and making full use of the limited space in the ward; in addition, the infusion stand can be flexibly positioned to adjust its location. When the infusion stand is needed, the infusion arm can be rotated outward to position the stand on one side of the bed, facilitating infusion operations for medical staff and patient use. When the infusion stand is not needed, the arm can be rotated to place it against the wall, thus maximizing the use of the limited space in the ward and eliminating the need for medical staff to store the infusion stand, reducing their workload. Furthermore, the suspended arm prevents it from getting tangled with the wiring of monitoring equipment next to the patient during rotation, greatly improving the ease of use of the infusion stand. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a retractable infusion stand suitable for micro-infusion pumps;

[0016] Figure 2 for Figure 1 A magnified structural diagram of part A in the diagram;

[0017] Figure 3 This is a structural diagram of another implementation state of the locking component;

[0018] Figure 4 A schematic diagram of the locking sliding component;

[0019] Figure 5 for Figure 4 Sectional view at point BB;

[0020] Figure 6 for Figure 4 Sectional view at CC;

[0021] Figure 7 for Figure 4 Sectional view at point DD;

[0022] Figure 8 A schematic diagram of another implementation state of the locking sliding component.

[0023] Reference numerals: 1. Infusion mounting bracket; 11. Infusion mounting seat; 111. Hinge block; 12. Infusion mounting arm; 121. First infusion mounting rod; 122. Second infusion mounting rod; 123. Resistance pad; 13. Insert sleeve; 14. Locking component; 141. Locking inner cylinder; 1411. Tapered through hole; 142. Locking ball; 143. Locking outer cylinder; 1431. Locking inner wall; 1432. Unlocking inner wall ; 144. Elastic component; 15. Insert sleeve; 2. Infusion stand body; 21. Infusion rod; 22. Infusion hook; 23. Pump stand base; 231. Pump mounting surface; 232. Pump pressing surface; 24. Locking sliding component; 241. Adjustment seat; 242. Clamping arm; 243. Clamping block; 244. Adjustment screw; 245. Abutment post; 3. Drainage stand body; 31. Drainage rod; 311. Height scale; 32. Drainage hook. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Reference Figure 1-8 As shown, a retractable infusion stand suitable for micro-infusion pumps includes an infusion mounting bracket 1 that can be fixed to a wall, and an infusion stand body 2 disposed on the infusion mounting bracket 1. The infusion mounting bracket 1 includes an infusion mounting base 11 fixed to the wall and an infusion mounting arm 12 rotatably connected to the infusion mounting base 11. One end of the infusion mounting arm 12 in the longitudinal direction is rotatably connected to the middle of the vertical direction of the infusion mounting base 11, and the infusion stand body 2 is disposed at the other end in the longitudinal direction of the infusion mounting arm 12. The rotation axis of the infusion mounting arm 12 on the infusion mounting base 11 is vertically arranged. The rotation direction of the mounting base 11 is set in the horizontal direction, and the infusion mounting arm 12 includes a retracted state when it is attached to the wall and an extended state when it rotates outward during the rotation process; the infusion mounting base 11 can be installed on the wall next to the hospital bed using expansion screws, and preferably the infusion mounting arm 12 is located below the hospital bed board. The lower position makes it convenient to place the infusion stand 2 on the infusion mounting frame 1, and also allows the infusion mounting arm 12 to be hidden in the retracted state, which can effectively avoid the infusion mounting frame 1 occupying space or even obstructing the movement range of medical staff when it is not in use.

[0026] The infusion stand 2 includes a vertically arranged infusion rod 21, an infusion hook 22 located at the top of the infusion rod 21, and a pump holder 23 mounted on the infusion rod for placing a micro-pump. Multiple infusion hooks 22 are provided, each arranged around the top of the infusion rod 21 for easy hooking of infusion bags or bottles. Multiple pump holders 23 are provided, each slidingly connected to the infusion rod 21. Each pump holder 23 has a locking sliding component 24 that can slide or lock onto the infusion rod 21. The micro-pump can be placed on the pump holder 23, and the locking sliding component 24 allows the upper pump holder 23 to hold the micro-pump. The infusion pump is positioned on the lower pump holder 23, which effectively improves the stability of the micro-infusion pump. When multiple micro-infusion pumps are needed, they can be stacked on the pump holder 23, which greatly improves the flexibility and applicability of the infusion stand 2. The pump holder 23 includes a pump placement surface 231 located above for stable placement of the micro-infusion pump, and a pump pressing surface 232 located below for pressing and limiting the lower micro-infusion pump against the lower pump holder 23. The pump placement surface 231 can be a planar structure or a concave arc surface, while the pump pressing surface 232 can be a concave arc surface or an irregular surface that matches the outer contour of the micro-infusion pump, which helps to further improve the stability of the micro-infusion pump.

[0027] The aforementioned infusion stand can be used to hook infusion bags or bottles, to stably place micro-infusion pumps, and even to accommodate multiple micro-infusion pumps simultaneously, thus greatly improving the flexibility and applicability of the infusion stand and making full use of the limited space in the ward. Furthermore, the infusion mounting bracket 1 allows for flexible adjustment of the position of the infusion stand body 2. When the infusion stand is needed, the infusion mounting arm 12 can be rotated outwards to position the infusion stand body 2 on one side of the bed width, facilitating infusion operations for medical staff and patient use. When the infusion stand is not needed, the infusion mounting arm 12 can be rotated to position the infusion stand body 2 against the wall, maximizing the use of the limited space in the ward and eliminating the need for medical staff to store the infusion stand, reducing their workload. Additionally, the infusion mounting arm 12 is suspended in the air, preventing it from getting tangled with the wiring of monitoring equipment next to the patient during rotation, greatly improving the ease of use of the infusion stand.

[0028] The infusion stand body 2 and the infusion mounting frame 1 are separate units, but detachably and fixedly connected. The end of the infusion mounting arm 12 is equipped with a insertion sleeve 13 for vertical insertion of the infusion rod 21. The insertion sleeve 13 is a hollow tubular structure, and its inner diameter matches the outer diameter of the infusion rod 21. A locking component 14 is provided on the insertion sleeve 13 to lock the infusion rod 21 in place. The separate design of the infusion stand body 2 and the infusion mounting frame 1 effectively reduces processing and transportation costs. It also allows for the direct use of existing infusion stands in the ward; for example, existing floor-standing and movable infusion stands can be reused by simply removing the base and using only the rod and hook. This reuse of existing infusion stands further reduces operating costs. The hollow insertion sleeve 13 allows the infusion rod 21 to pass through, and the locking component 14 can lock the infusion rod 21 and adjust its height, thereby further improving the flexibility and applicability of the infusion stand.

[0029] The locking component 14 includes a locking inner cylinder 141 disposed at the end of the insert sleeve 13, locking balls 142 disposed on the locking inner cylinder 141 for locking the infusion rod 21, and a locking outer cylinder 143 axially slidably connected to the locking inner cylinder 141. The locking inner cylinder 141 is integral with the insert sleeve 13 and is coaxially arranged. Multiple locking balls 142 are provided, and each locking ball 142 is arranged around the locking inner cylinder 141. A tapered through hole 1411 is provided through the locking inner cylinder 141 along its wall thickness direction, allowing the locking balls 142 to slide radially. The large-diameter opening of the tapered through-hole 1411 faces the locking outer cylinder 143, and the inner diameter of the large-diameter opening is adapted to the outer diameter of the locking ball 142. The small-diameter opening of the tapered through-hole 1411 faces the infusion rod 21, and the inner diameter of the small-diameter opening is smaller than the outer diameter of the locking ball 142. The wall thickness of the locking inner cylinder 141 is smaller than the outer diameter of the locking ball 142. The locking outer cylinder 143 includes a locking inner wall 1431 capable of driving the locking ball 142 out of the small-diameter opening of the tapered through-hole 1411, and a locking inner wall 1431 capable of housing the locking ball 142. The inner diameter of the unlocking inner wall 1432 and the locking inner wall 1431 of the locking inner cylinder 141 are adapted to each other. The inner diameter of the unlocking inner wall 1432 is larger than the outer diameter of the locking inner cylinder 141. During the axial sliding of the locking outer cylinder 143 on the locking inner cylinder 141, when the locking inner wall 1431 corresponds with the locking ball 142, the locking ball 142 can lock the infusion rod 21. At this time, the locking ball 142 is clamped between the locking outer cylinder 143 and the infusion rod 21, which can play the role of locking the infusion rod 21. When the unlocking inner wall 1432 is closed, the locking inner wall 1432 is closed. When the locking ball 142 corresponds to the locking ball 32, the locking ball 142 can slide outward. At this time, when the infusion rod 21 is pulled and axially slid, the infusion rod 21 can push the locking ball 142 into the gap between the unlocking inner wall 1432 and the locking inner cylinder 141, thereby unlocking the infusion rod 21 by the locking component 14. Therefore, the locking component 14 can not only lock the infusion rod 21, but also facilitate the axial sliding of the infusion rod 21, thereby facilitating the height adjustment of the infusion stand body 2, which is conducive to further improving the flexibility and applicability of the infusion stand.

[0030] Furthermore, the aforementioned locking component 14 has a simple structure and is easy to implement. It can not only lock the infusion rod 21, but also facilitate medical staff to operate the locking component 14 and adjust the height of the infusion rod 21. Therefore, it is ingeniously designed and practical.

[0031] The locking component 14 also includes an elastic element 144 that can elastically push the locking outer cylinder 143. The elastic element 144 pushes the locking outer cylinder 143 to always maintain the corresponding state between the locking inner wall 1431 and the locking ball 142, so that the locking component 14 can always maintain the locked state when locking the infusion rod 21, thereby greatly improving the stability of the locking component 14. When unlocking is required, it is only necessary to press down the elastic element 144 by the locking outer cylinder 143, which can facilitate the disassembly and assembly and height adjustment of the infusion stand.

[0032] A sealing element is provided at the upward opening of the locking outer cylinder 143, which abuts against the inner wall of the locking outer cylinder 143 and the outer wall of the locking inner cylinder 141. The sealing element can be a sealing ring embedded in the inner wall of the locking outer cylinder 143, or a cover that is fastened to the upward opening of the locking outer cylinder 143. This can effectively prevent impurities from falling into it and affecting the stability of the locking component 14.

[0033] The retractable infusion stand also includes a drainage frame body 3, which is mounted on the infusion mounting frame 1 for attaching hooks to external ventricular drainage bags. The drainage frame body 3 is separate from the infusion mounting frame 1. The drainage frame body 3 includes a vertically mounted drainage rod 31 and a drainage hook 32 mounted on the top of the drainage rod 31. The infusion mounting arm 12 is provided with an insertion sleeve 15 for vertically inserting the drainage rod 31. The insertion sleeve 15 is a hollow tubular structure. The inner diameter of the insertion sleeve 15 is adapted to the outer diameter of the drainage rod 31. The insertion sleeve 15 is also provided with a locking component 14 that can lock the drainage rod 31. The outer wall of the drainage rod 31 is provided with a height scale 311. The aforementioned drainage frame 3 can be flexibly adjusted in height within the insertion sleeve 15 via the locking component 14, thereby enabling the drainage frame 3 to be used for hooking external ventricular drainage bags. Furthermore, the height scale 311 ensures accurate adjustment of the height of the external ventricular drainage bag, greatly improving the convenience and accuracy of adjustment for medical staff.

[0034] Since the drainage frame 3 and the infusion frame 2 may be used simultaneously or not, in actual use, the drainage frame 3 and the infusion frame 2 can be the same frame. The frame is equipped with a height scale 311. When used for infusion, it is the infusion frame 2, and when used for drainage, it can be the drainage frame 3. Therefore, the insertion sleeve 15 and the insertion sleeve 13 can be the same or different tubular parts. This design greatly improves the versatility of the components in the infusion frame, which is conducive to further improving the flexibility and applicability of the infusion frame.

[0035] The infusion mounting arm 12 includes a first infusion mounting rod 121 rotatably connected to the infusion mounting base 11 and a second infusion mounting rod 122 inserted into the first infusion mounting rod 121. The first infusion mounting rod 121 and the second infusion mounting rod 122 are coaxially and slidably connected. One end of the first infusion mounting rod 121 is rotatably connected to the infusion mounting base 11, and the second infusion mounting rod 122 is inserted into the other end of the first infusion mounting rod 121. The infusion frame 2 is located at the end of the second infusion mounting rod 122 that extends out of the first infusion mounting rod 121. The aforementioned infusion mounting arm 12 is designed with a telescopic structure through the first infusion mounting rod 121 and the second infusion mounting rod 122. This not only further reduces the space occupied in the storage state, but also effectively increases the range of use of the infusion mounting arm 12. This structure allows the infusion mounting base 11 to be located in the middle of the width of the hospital bed, so that the infusion mounting arm 12 can be rotated to both sides of the width of the hospital bed as needed. This allows the infusion stand 2 to be flexibly adjusted in position as needed, greatly improving the flexibility and applicability of the infusion stand.

[0036] The infusion mounting base 11 has protruding hinge blocks 111 for rotatably connecting the infusion mounting arm 12. Two hinge blocks 111 are provided, located on the upper and lower sides of the infusion mounting arm 12 respectively. A resistance pad 123 is embedded in the infusion mounting arm 12, ensuring it remains in contact with the hinge blocks 111 at all times. During rotation, the resistance pad 123 increases the friction between the infusion mounting arm 12 and the hinge blocks 111. This resistance pad 123 effectively increases the friction between the infusion mounting arm 12 and the hinge blocks 111, thus ensuring the infusion mounting arm 12 remains stable at any rotation angle, thereby improving the stability of the infusion mounting bracket 1.

[0037] The locking sliding component 24 includes an adjusting seat 241 fixed on the pump frame seat 23, a clamping arm 242 rotatably connected to the adjusting seat 241, a clamping block 243 slidably connected to the clamping arm 242, and an adjusting screw 244 screwed to the adjusting seat 241 and used to drive the clamping block 243 to slide on the clamping arm 242. The end of the adjusting screw 244 is axially limited and circumferentially rotatably connected to the clamping block 243. A handle may be provided at the end of the adjusting screw 244 away from the clamping block 243 to facilitate rotation of the adjusting screw 244. During the rotation of the adjusting screw 244 on the adjusting seat 241, it can drive the clamping block 243 to slide back and forth on the clamping arm 242. The clamping arm 242 is configured in a J-shape. The vertical end of the clamping arm 242 is hinged to the control seat 241. The arc end of the clamping arm 242 faces the infusion rod 21 and can cooperate with the clamping block 243 to achieve three-point clamping and limiting on the infusion rod 21. There are two clamping arms 242, which are symmetrically arranged on both sides of the control seat 241. The two clamping arms 242 are inclined to both sides of the control seat 241 in a V-shape. The two ends of the clamping block 243 are slidably connected to the vertical ends of the two clamping arms 242 respectively. During the process of the control screw 244 driving the clamping block 243 to slide on the clamping arm 242, the clamping block 243 can drive the two clamping arms 242 to move closer or further apart.

[0038] The sliding connection between the clamping block 243 and the clamping arm 242 can be achieved by providing a groove on the clamping arm 242 and a slider on the clamping block 243. When the slider slides in the groove, the clamping block 243 can achieve a directional sliding connection on the clamping arm 242. Furthermore, both ends of the clamping block 243 can extend along the vertical length of the clamping arm 242, allowing the clamping block 243 to move the two clamping arms 242 closer or further apart during sliding. Therefore, this locking sliding component 24 can not only achieve the connection between the infusion rod 242 and the clamping arm 242 through the two clamping arms 242 and the clamping block 243, but also... The three-point clamping limit on 1 can also unlock the locking sliding component 24 by releasing the clamping block 243, which facilitates the height adjustment of the pump holder 23 and allows the two clamping arms 242 to open to a certain extent to separate from the infusion rod 21. Therefore, the locking sliding component 24 is ingeniously and reasonably designed, and its structure is simple and easy to implement. It can not only realize the sliding and locking of the pump holder 23, but also realize the disassembly and assembly of the pump holder 23. When it is necessary to reduce or increase the micro pump, it can be achieved by adding the pump holder 23, which greatly improves the flexibility and applicability of the infusion stand.

[0039] The end of the arc-shaped segment of the clamping arm 242 is provided with an abutment post 245 to increase the contact area with the infusion rod 21. Abutment posts 245 are also provided in the middle of the clamping block 243 facing the infusion rod 21. The length direction of the abutment posts 245 is consistent with the length direction of the infusion rod 21. Friction elements that increase the friction with the infusion rod 21 are embedded in the abutment posts 245 facing the infusion rod 21. The abutment posts 245 effectively increase the contact area between the locking sliding component 24 and the infusion rod 21, thereby improving the locking firmness of the locking sliding component 24. The friction elements can be made of rubber, which is not only elastic but also has strong friction when pressed against the infusion rod 21, further improving the locking firmness of the locking sliding component 24.

[0040] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A retractable infusion stand suitable for micro-infusion pumps, characterized in that: The device includes an infusion mounting bracket (1) that can be fixed to a wall and an infusion frame body (2) set on the infusion mounting bracket (1). The infusion mounting bracket (1) includes an infusion mounting base (11) fixed to the wall and an infusion mounting arm (12) rotatably connected to the infusion mounting base (11). One end of the infusion mounting arm (12) is rotatably connected to the middle of the vertical direction of the infusion mounting base (11) in the length direction. The infusion frame body (2) is set at the other end of the length direction of the infusion mounting arm (12). The rotation axis of the infusion mounting arm (12) on the infusion mounting base (11) is vertically set, and the rotation direction of the infusion mounting arm (12) on the infusion mounting base (11) is set in the horizontal direction. During the rotation process, the infusion mounting arm (12) includes a retracted state when it is attached to the wall and an unfolded state when it is rotated outward. The infusion stand (2) includes a vertically arranged infusion rod (21), an infusion hook (22) set on the top of the infusion rod (21), and a pump holder (23) set on the delivery rod for placing a micro-pump. Multiple pump holders (23) are provided, and each pump holder (23) is longitudinally slidably connected to the infusion rod (21). The pump holder (23) includes a pump placement surface (231) located above for stable placement of the micro-pump, and a pump pressing surface (232) located below for pressing and limiting the micro-pump below on the pump holder (23). The pump holder (23) is provided with a locking sliding component (24) that can slide or lock on the infusion rod (21). The locking sliding component (24) includes an adjustment seat (241) fixed on the pump frame seat (23), a clamping arm (242) rotatably connected to the adjustment seat (241), a clamping block (243) slidably connected to the clamping arm (242), and an adjustment screw (244) screwed onto the adjustment seat (241) and used to drive the clamping block (243) to slide on the clamping arm (242). The end of the adjustment screw (244) is axially limited and circumferentially rotatably connected to the clamping block (243). During the rotation of the adjustment screw (244) on the adjustment seat (241), it can drive the clamping block (243) to slide back and forth on the clamping arm (242). The clamping arm (242) is J-shaped. In terms of structural configuration, the vertical end of the clamping arm (242) is hinged to the control seat (241), and the arc-shaped end of the clamping arm (242) faces the infusion rod (21). There are two clamping arms (242), which are symmetrically arranged on both sides of the control seat (241). The two clamping arms (242) are inclined to both sides of the control seat (241) to form a V-shaped structure. The two ends of the clamping block (243) are slidably connected to the vertical ends of the two clamping arms (242). During the process of the control screw (244) driving the clamping block (243) to slide on the clamping arm (242), the clamping block (243) can drive the two clamping arms (242) to move closer or further away from each other.

2. The retractable infusion stand suitable for micro-infusion pumps according to claim 1, characterized in that: The infusion stand (2) and the infusion mounting bracket (1) are separately configured and detachably fixedly connected. The end of the infusion mounting arm (12) is provided with a plug sleeve (13) for vertical insertion of the infusion rod (21). The plug sleeve (13) is a hollow tubular structure. The inner diameter of the plug sleeve (13) is adapted to the outer diameter of the infusion rod (21). The plug sleeve (13) is provided with a locking component (14) that can lock the infusion rod (21).

3. A retractable infusion stand suitable for micro-infusion pumps according to claim 2, characterized in that: The locking component (14) includes a locking inner cylinder (141) disposed at the end of the insert sleeve (13), locking balls (142) disposed on the locking inner cylinder (141) for locking the infusion rod (21), and a locking outer cylinder (143) axially slidably connected to the locking inner cylinder (141). The locking inner cylinder (141) is integral with the insert sleeve (13) and coaxially disposed. Multiple locking balls (142) are provided, and each locking ball (142) surrounds... A locking inner cylinder (141) is provided around the locking inner cylinder (141). A tapered through hole (1411) is provided through the locking inner cylinder (141) along its wall thickness direction, allowing the locking ball (142) to slide radially. The large diameter opening of the tapered through hole (1411) faces the locking outer cylinder (143), and the inner diameter of the large diameter opening is adapted to the outer diameter of the locking ball (142). The small diameter opening of the tapered through hole (1411) faces the infusion rod (21), and the inner diameter of the small diameter opening is... The outer diameter of the locking ball (142) is smaller than the outer diameter of the locking inner cylinder (141), and the wall thickness of the locking inner cylinder (143) is smaller than the outer diameter of the locking ball (142). The locking outer cylinder (143) includes a locking inner wall (1431) capable of driving the locking ball (142) to protrude from the small-diameter opening of the tapered through hole (1411), and an unlocking inner wall (1432) capable of receiving the locking ball (142). The inner diameter of the locking inner wall (1431) is smaller than that of the locking inner cylinder. The outer diameter of (141) is adapted to the inner diameter of the unlocking inner wall (1432), which is larger than the outer diameter of the locking inner cylinder (141). When the locking outer cylinder (143) slides axially on the locking inner cylinder (141), the locking inner wall (1431) corresponds to the locking ball (142), and the locking ball (142) can lock the infusion rod (21). When the unlocking inner wall (1432) corresponds to the locking ball (142), the locking ball (142) can slide outward.

4. A retractable infusion stand suitable for micro-infusion pumps according to claim 3, characterized in that: The locking component (14) also includes an elastic element (144) that can elastically push the locking outer cylinder (143). The elastic element (144) pushes the locking outer cylinder (143) to always maintain the corresponding state between the locking inner wall (1431) and the locking ball (142). The upward opening of the locking outer cylinder (143) is provided with a sealing element that abuts against the inner wall of the locking outer cylinder (143) and the outer wall of the locking inner cylinder (141).

5. A retractable infusion stand suitable for micro-infusion pumps according to claim 3 or 4, characterized in that: The retractable infusion stand also includes a drainage frame body (3) set on the infusion mounting frame (1) for hooking the external ventricular drainage bag. The drainage frame body (3) is set separately from the infusion mounting frame (1). The drainage frame body (3) includes a vertically set drainage rod (31) and a drainage hook (32) set on the top of the drainage rod (31). The infusion mounting arm (12) is provided with a insertion sleeve (15) for vertical insertion of the drainage rod (31). The insertion sleeve (15) is set with a hollow tubular structure. The inner diameter of the insertion sleeve (15) is adapted to the outer diameter of the drainage rod (31). The insertion sleeve (15) is also provided with a locking component (14) that can lock the drainage rod (31). The outer side wall of the drainage rod (31) is provided with a height scale (311).

6. A retractable infusion stand suitable for micro-infusion pumps according to claim 1, characterized in that: The infusion mounting arm (12) includes a first infusion mounting rod (121) rotatably connected to the infusion mounting base (11) and a second infusion mounting rod (122) inserted into the first infusion mounting rod (121). The first infusion mounting rod (121) and the second infusion mounting rod (122) are coaxially and slidably connected. One end of the first infusion mounting rod (121) is rotatably connected to the infusion mounting base (11), and the second infusion mounting rod (122) is inserted into the other end of the first infusion mounting rod (121). The infusion frame (2) is located at the end of the second infusion mounting rod (122) that extends out of the first infusion mounting rod (121).

7. A retractable infusion stand suitable for micro-infusion pumps according to claim 1, characterized in that: The infusion mounting base (11) is provided with a hinge block (111) for rotatably connecting the infusion mounting arm (12). There are two hinge blocks (111), and the two hinge blocks (111) are located on the upper and lower sides of the infusion mounting arm (12) respectively. The infusion mounting arm (12) is embedded with a resistance pad (123) that can always maintain contact with the hinge block (111). During the rotation of the infusion mounting arm (12), the resistance pad (123) can increase the friction with the hinge block (111).

8. A retractable infusion stand suitable for micro-infusion pumps according to claim 1, characterized in that: The end of the arc-shaped segment of the clamping arm (242) is provided with an abutment post (245) that can increase the contact area with the infusion rod (21). The clamping block (243) is also provided with an abutment post (245) in the middle of the side facing the infusion rod (21). The length direction of the abutment post (245) is consistent with the length direction of the infusion rod (21). The abutment post (245) facing the infusion rod (21) is embedded with a friction element that can increase the friction with the infusion rod (21).

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