Cerebrospinal fluid drainage device with adjustable height

Abstract

The utility model is applicable to the technical field of medical equipment, and provides a height-adjustable cerebrospinal fluid drainage device, which comprises a drainage bottle, a drainage inlet tube, a drainage outlet tube, a hydrops bag and a suspension assembly, a winding mechanism is arranged in the suspension assembly, and a sling connected to the winding mechanism is led out from the bottom of the suspension assembly. The tail end of the hanging rope is provided with a hook, the hanging rope is provided with scale marks, the hanging assembly is further provided with a locking mechanism for locking the winding mechanism, and the drainage bottle is hung to the hook. According to the structure, the hanging assembly is designed to replace a bandage, the winding mechanism is arranged in the hanging assembly, the hanging rope is led out, scale marks are arranged on the hanging rope, the pull-out length of the hanging rope can be accurately controlled, then the winding mechanism is locked through the locking mechanism, and therefore the drainage bottle can be stably hung; and after the drainage bottle is taken down, the hanging rope can be automatically retracted under the action of the winding mechanism by loosening the locking mechanism, so that the operation is very convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a cerebrospinal fluid drainage device with adjustable height. Background Art

[0002] Cerebrospinal fluid drainage is a treatment for hydrocephalus and increased intracranial pressure. It involves inserting a catheter into the ventricles or beneath the dura mater to drain some cerebrospinal fluid, thereby reducing intracranial pressure. The height of the drainage bottle determines the rate and daily volume of cerebrospinal fluid drainage, which in turn directly impacts intracranial pressure. Therefore, strict requirements are placed on the height of the drainage bottle to ensure effective drainage and therapeutic outcomes.

[0003] Cerebrospinal fluid is drained through a drainage device, the main structure of which is a drainage bottle, which needs to be hung on the side of the bed. Currently, most clinical practices use a bandage to hang the drainage bottle directly on a vertical pole, and the height of the drainage bottle is controlled by adjusting the length of the bandage. Due to the relatively large width of the bandage, it is not aesthetically pleasing when used as a binding rope, and it is difficult to untie and adjust the length after tightening. Moreover, the height cannot be quantified, especially when maintaining the original height after changing the drainage bottle. The operation is cumbersome and inaccurate, making it very inconvenient to use. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a height-adjustable cerebrospinal fluid drainage device, aiming to solve the above technical problems.

[0005] The utility model adopts the following technical solutions:

[0006] The height-adjustable cerebrospinal fluid drainage device includes a drainage bottle, a drainage inlet tube and a drainage outlet tube connected to the bottom of the drainage bottle, the drainage outlet tube is connected to a fluid bag, the drainage device also includes a hanging component, a winding mechanism is provided inside the hanging component, a hanging rope connected to the winding mechanism is led out from the bottom of the hanging component, a hook is provided at the end of the hanging rope, and there are scale marks on the hanging rope. The hanging component is also provided with a locking mechanism for locking the winding mechanism, and the drainage bottle is hung on the hook.

[0007] Furthermore, the suspension assembly includes a bottom cover and an upper cover, the bottom cover is provided with a vertical shaft and a protective ring, the winding mechanism includes a coil spring placed between the vertical shaft and the protective ring, a turntable is rotatably mounted on the vertical shaft, a bayonet is provided on the turntable, one end of the coil spring is snapped into the vertical shaft, and the other end is snapped into the bayonet on the turntable, and the head end of the hanging rope is fixed to the turntable.

[0008] Furthermore, a positioning ring is provided in the upper cover. After the upper cover and the lower cover are installed, the head end of the vertical shaft is located in the positioning ring, and the positioning ring contacts the end face of the turntable.

[0009] Furthermore, the end surface of the turntable extends outward to form a circle of positioning teeth, and a sliding groove is provided on the side of the upper cover opposite to the position of the positioning teeth. The locking mechanism includes a slider located in the sliding groove, and the upper cover also has a guide groove, and a tooth block is provided in the guide groove. A spring is provided between the guide groove and the tooth block, and the front end of the tooth block abuts against the positioning teeth, and the rear end abuts against the slider, and a part of the rear end of the tooth block is an inclined surface and a part is a flat surface.

[0010] Furthermore, a matching shallow groove is formed on the side of the upper cover facing the bottom cover, and the upper cover and the lower cover are locked by screws.

[0011] Furthermore, the head of the upper cover is provided with a hook and a snap ring.

[0012] The beneficial effects of the present invention are as follows: the drainage device is provided with a hanging assembly for replacing a bandage, the hanging assembly is provided with a reeling mechanism, and a hanging rope is led out, the hanging rope is provided with scale marks, the pulled-out length of the hanging rope can be accurately controlled, and then the reeling mechanism is locked with a locking mechanism, so that the drainage bottle can be stably suspended; after the drainage bottle is removed, the locking mechanism is loosened, and the hanging rope can be automatically retracted under the action of the reeling mechanism, so the operation is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a height-adjustable cerebrospinal fluid drainage device provided by an embodiment of the present utility model;

[0014] Figure 2 The internal structure of the suspension assembly Figure 1 ;

[0015] Figure 3 The internal structure of the suspension assembly Figure 2

[0016] Figure 4 is a cross-sectional view of the upper cover;

[0017] Figure 5 It is a cross-sectional view of the locking mechanism. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In order to illustrate the technical solution of the present invention, specific embodiments are provided below.

[0020] like Figure 1-3As shown, the height-adjustable cerebrospinal fluid drainage device provided in this embodiment includes a drainage bottle 11, a drainage inlet tube 12 and a drainage outlet tube 13 connected to the bottom of the drainage bottle 11, and a fluid bag 14 connected to the drainage outlet tube 13. The drainage device also includes a suspension assembly 2, which has a reeling mechanism 3 inside. A hanging rope 4 connected to the reeling mechanism 3 extends from the bottom of the suspension assembly 2, and the end of the hanging rope 4 has a hook 41 with scale markings 42. The suspension assembly 2 also has a locking mechanism 5 for locking the reeling mechanism, and the drainage bottle 11 is suspended from the hook 41.

[0021] This device adds a suspension component to the existing drainage device, replacing the existing bandage-tightening method of hanging the drainage bottle with the suspension component. The suspension component has three features. First, the hanging rope can be easily pulled out from the reeling mechanism. After it is pulled out to the appropriate length, the locking mechanism is operated to lock the reeling mechanism, and then it can be hung on the hook at the end of the hanging rope from the drainage bottle. The operation is very convenient. Second, when the hanging rope needs to be recovered, after removing the drainage bottle, the locking mechanism is released. Under the action of the reeling mechanism, the hanging rope is automatically retracted. The operation is simple. Third, there are scale marks on the hanging rope. The hanging rope can be made into a flat belt. The scale marks corresponding to the length of the pulled hanging rope can be used to intuitively understand the current pulled-out length of the hanging rope. Since the height is quantified by the scale marks, the height of the drainage bottle can be accurately adjusted.

[0022] As a specific structure of the suspension assembly, Figure 2 、 3 As shown, the suspension assembly 2 includes a bottom cover 6 and an upper cover 7. The upper cover 7 has a matching shallow groove 74 formed on the side facing the bottom cover. The upper and lower covers are locked together by screws. The bottom cover 6 has a vertical shaft 61 and a protective ring 62. The winding mechanism 3 includes a coil spring 31 positioned between the vertical shaft 61 and the protective ring 62. A turntable 32 is rotatably mounted on the vertical shaft 61. The turntable 32 has a bayonet 33. One end of the coil spring 31 snaps into the vertical shaft 61, and the other end snaps into the bayonet 33 on the turntable 32. The head end of the hanging rope 4 is fixed to the turntable 32. As shown in the figure, the bottom of the protective ring and the upper cover both have notches, through which the hanging rope is led out. The turntable is cylindrical, and the hanging rope is wound onto the outer surface of the turntable. There is a convex circle at the bottom of the inner ring of the protective ring, and a round hole is provided in the center of the end face of the turntable. The round hole is inserted into the vertical shaft. At this time, the turntable is partially embedded in the convex circle, and the hanging rope is wound between the protective ring and the turntable. The turntable is limited by the upper cover and will not separate from the vertical shaft.

[0023] As shown, the upper cover 7 has a positioning ring 71 inside. After the upper and lower covers are installed, the head end of the vertical shaft 61 is located within the positioning ring 71, and the positioning ring 71 contacts the end face of the turntable 32. The top of the vertical shaft is located within the positioning ring, which can press the turntable to prevent axial shaking of the turntable and ensure rotational stability.

[0024] In this structure, when the hanging rope is pulled out, the turntable rotates and the locking mechanism locks the turntable, thereby completing the locking of the hanging rope, making it convenient to hang the drainage bottle on the hook. As a specific locking method, combined with Figure 2-5 As shown, the end surface of the turntable 32 extends outward to form a circle of positioning teeth 34, and the diameter of the circle of positioning teeth is larger than the outer diameter of the protective ring. A sliding groove 72 is provided on the side of the upper cover 7 opposite the position of the positioning teeth. The locking mechanism 5 includes a slider 51 located in the sliding groove 72. In the figure, the outer side of the slider 51 is a push plate with a friction surface. The upper cover 7 also has a guide groove 73, and a tooth block 52 is provided in the guide groove 73. A spring 53 is provided between the guide groove 73 and the tooth block 52. The front end of the tooth block 52 contacts the positioning teeth 34, and the rear end contacts the slider 51. The rear end of the tooth block 52 is partially inclined and partially flat.

[0025] like Figure 5 As shown, the slider in this embodiment has a cross-shaped cross-section, with matching straight-edge notches on the inner walls of the chute on either side, allowing the slider to move up and down within the chute. This is achieved by pushing the outer push plate. Friction between the slider and the chute prevents the slider from sliding freely once it is pushed to a certain position. Alternatively, the I-shaped position formed by the slider and push plate can be retained in the notch of the chute, preventing the slider from dislodging. This is also a feasible solution.

[0026] The front end of the tooth block is a tooth surface, the rear end has an inclined surface and a flat surface, and both sides are wing blocks, which can be slid back and forth in the guide groove. There is a countersunk in the wing block, and a spring is installed in the countersunk. The spring provides a certain thrust so that the tooth block engages with the positioning tooth. In the initial state, the slider is pushed to the upper position of the slide groove, which can completely avoid (or mostly avoid) the tooth block. The thrust of the spring is relatively small. When the hanging rope pulls the turntable to rotate, the tooth block will retreat into the slide groove, and the tooth block will automatically move back and forth slightly. When the turntable needs to be locked, after the rope is pulled, push the slider down until the slider contacts the plane at the rear end of the tooth block. At this time, the tooth block cannot retreat, thus completing the locking of the turntable and the tooth block.

[0027] This device can be hung on various supports, including vertical poles, infusion towers, etc. As a specific structure, the head of the upper cover is also provided with a hook 75 and a snap ring 76. The snap ring 76 is mounted to the upper cover through a torsion spring. After pushing the snap ring open, the hook is hung at the target position and the snap ring returns to its original position, so that the suspension component will not fall off.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A height-adjustable cerebrospinal fluid drainage device, comprising a drainage bottle, a drainage inlet tube and a drainage outlet tube connected to the bottom of the drainage bottle, the drainage outlet tube being connected to a fluid bag, characterized in that: The drainage device also includes a hanging component, a winding mechanism is provided inside the hanging component, a hanging rope connected to the winding mechanism is extended from the bottom of the hanging component, a hook is provided at the end of the hanging rope, and there are scale marks on the hanging rope. The hanging component is also provided with a locking mechanism for locking the winding mechanism, and the drainage bottle is hung on the hook.

2. The height-adjustable cerebrospinal fluid drainage device according to claim 1, characterized in that: The suspension assembly includes a bottom cover and an upper cover, the bottom cover is provided with a vertical shaft and a protective ring, the winding mechanism includes a coil spring placed between the vertical shaft and the protective ring, a turntable is rotatably mounted on the vertical shaft, a bayonet is provided on the turntable, one end of the coil spring is snapped into the vertical shaft, and the other end is snapped into the bayonet on the turntable, and the head end of the hanging rope is fixed to the turntable.

3. The height-adjustable cerebrospinal fluid drainage device according to claim 2, characterized in that: A positioning ring is provided in the upper cover. After the upper cover and the lower cover are installed, the head end of the vertical shaft is located in the positioning ring, and the positioning ring contacts the end surface of the turntable.

4. The height-adjustable cerebrospinal fluid drainage device according to claim 3, characterized in that: The end surface of the turntable extends outward to form a circle of positioning teeth, and a sliding groove is provided on the side of the upper cover opposite to the position of the positioning teeth. The locking mechanism includes a slider located in the sliding groove, and the upper cover also has a guide groove, a tooth block is provided in the guide groove, and a spring is provided between the guide groove and the tooth block. The front end of the tooth block abuts against the positioning teeth, and the rear end abuts against the slider, and a part of the rear end of the tooth block is an inclined surface and a part is a flat surface.

5. The height-adjustable cerebrospinal fluid drainage device according to claim 4, characterized in that: A matching shallow groove is formed on one side of the upper cover facing the bottom cover, and the upper cover and the lower cover are locked by screws.

6. The height-adjustable cerebrospinal fluid drainage device according to claim 5, characterized in that: The head of the upper cover is also provided with a hook and a snap ring.

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