Adjustable intracranial drainage tube fixator

Abstract

The invention relates to the technical field of medical instruments, and discloses an adjustable intracranial drainage tube fixator which comprises a ruler body, an upper cover and a bottom cover, the upper cover and the bottom cover are slidably connected to the outer side of the ruler body, the upper cover and the bottom cover are clamped, scales are arranged on the outer side of the ruler body, and two sets of mounting grooves, two sets of movable grooves and two sets of grooves are formed in the upper cover and the bottom cover correspondingly. A driving assembly and two fixing assemblies are arranged between the upper cover and the bottom cover, and the fixing assemblies are located in the mounting grooves. According to the adjustable intracranial drainage tube fixator, through cooperation between a swing plate and a sliding block, when the swing plate is pushed to swing, one side of the swing plate can push a top rod to move by pushing the sliding block, and the displacement of the top rod can extrude a part of a ruler body to enter an upper cover and a bottom cover; therefore, the upper cover and the bottom cover can be stably fixed at the current position, the situation that the upper cover and the bottom cover are prone to displacement due to the influence of external force such as movement traction, turning over collision or daily slight stretching of a patient is avoided, and normal installation of the drainage tube is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an adjustable intracranial drainage tube fixator. Background Technology

[0002] In neurosurgical clinical treatment, the fixation and height adjustment of intracranial drainage tubes are crucial to treatment efficacy and patient safety. Proper fixation prevents tube traction and dislodgement, while precise height adjustment ensures effective drainage and reduces complications. Currently, a simple adjustable intracranial drainage tube fixation device is widely used clinically. It consists of a two-meter-long graduated measuring tape and a spring clip. In use, the measuring tape is inserted into the spring clip, leaving a 0-20cm section for measuring the height of the ventricular drainage tube's drip inlet. The remaining portion of the tape is overlapped and secured to the bedside IV stand using the spring clip. The tape length can be flexibly adjusted according to the patient's sitting height and turning needs, allowing sufficient range of motion for the drainage tube, effectively improving patient mobility. It also facilitates nurses in avoiding the risk of tube dislodgement when turning patients. The measuring tape itself has graduations, enabling precise adjustment of the ventricular drainage tube height. Combining simplicity and safety, it has gained considerable acceptance in clinical practice.

[0003] However, the core fixing component of this device is a common spring buckle commonly found on the market. This type of spring buckle has poor stability. During clinical use, it is very easy for the spring buckle to shift due to external forces such as patient movement, turning over, collisions, or slight daily stretching. Shifting of the spring buckle will cause the measuring tape to fail to fix and the drainage tube to shift in height. This not only affects the drainage effect but may also cause the tube to fall out due to accidental pulling, threatening the patient's life. It cannot fully meet the clinical needs for precise and safe fixation. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable intracranial drainage tube fixator to solve the problems mentioned in the background art.

[0005] The adjustable intracranial drainage tube fixator includes a ruler with graduations, an upper cover slidably disposed on the outside of the ruler, a bottom cover slidably disposed on the outside of the ruler and engaged with the upper cover, two fixing components including a slider and a balance rod, the slider being slidably disposed inside the upper and bottom covers and the balance rod being engaged inside the upper and bottom covers, a top rod being disposed on one side of the slider and parallel to the ruler, the top rod being displaced and pressing the ruler, the upper and bottom covers being stably fixed in the current position, a moving column being slidably disposed on the outside of the balance rod, a swing plate being rotatably disposed on the outside of the moving column, the swing plate being inclined and the side of the swing plate away from the moving column being rotatably disposed on the side of the slider, a drive component being disposed between the upper and bottom covers, and two connecting components being disposed on the outside of the upper and bottom covers.

[0006] Preferably, the slider has two sets of mounting seats on one side, a fixed column is provided between the two sets of mounting seats, and the side of the swing plate away from the moving column is rotatably positioned outside the fixed column.

[0007] Preferably, the balance bar has two sets of support plates on its outer side, and a guide rod is provided on one side of each support plate. The slider is slidably disposed on the outer side of the two sets of guide rods.

[0008] Preferably, a disk is provided on the outer side of the guide rod, and a first spring is provided on one side of the disk, with the end of the first spring away from the disk fixedly disposed inside the slider.

[0009] Preferably, a push plate is slidably disposed on the outer side of the balance bar, a placement plate is fixedly disposed on the outer side of the balance bar, and a second spring is disposed between the placement plate and the push plate.

[0010] Preferably, the drive assembly includes two sets of rotating columns, which are rotatably disposed between the upper cover and the bottom cover. A threaded tube is disposed between the two sets of rotating columns, and a sleeve is screwed onto the outer side of the threaded tube. Two sets of movable plates are respectively disposed on both sides of the sleeve, and a top block is disposed between the two sets of movable plates. The top block is slidably disposed on the outer side of the guide rod.

[0011] Preferably, the connecting assembly includes a mounting plate disposed on one side of the upper cover and the bottom cover. Two sets of paddles are slidably disposed inside the mounting plate. A horizontal plate is disposed on one side of the paddles. Two sets of locking rods are disposed on one side of the horizontal plate. The multiple sets of locking rods are respectively locked inside the upper cover and the bottom cover.

[0012] Preferably, the mounting plate has two sets of slots inside, and a limit rod is fixedly installed on the inner wall of the slot, and the paddle is slidably installed on the outside of the limit rod.

[0013] Preferably, a third spring is fixedly disposed on one side of the paddle, and the end of the third spring away from the paddle is fixedly disposed on the inner wall of the slot. Preferably, an anti-detachment block is provided on the outer side of the rotating column, and two sets of blocking plates are fixedly provided inside the upper cover and the bottom cover, respectively, with the anti-detachment block and the blocking plates in contact.

[0014] By adopting the above technical solution, stable fixation of the fixed components was achieved.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This adjustable intracranial drainage tube fixator works by coordinating a swing plate and a slider. When the swing plate is pushed to swing, one side of the swing plate will push the slider to move the top rod. The displacement of the top rod will squeeze a part of the ruler into the interior of the upper and lower covers, thereby fixing the upper and lower covers stably in the current position. This avoids displacement caused by external forces such as patient movement, turning over, or minor daily stretching, ensuring the proper installation of the drainage tube.

[0016] 2. This adjustable intracranial drainage tube fixator uses multiple sets of locking rollers that engage with the upper and lower covers respectively. When the lever is turned, the multiple sets of locking rollers will disengage from the upper and lower covers respectively. At this time, the upper and lower covers will no longer be combined, allowing the operator to easily maintain the parts on the fixation or drive components. After the multiple sets of locking rollers move back and engage with the upper and lower covers respectively, the upper and lower covers will be stably combined, completing the installation of the fixation and drive components stably and conveniently, providing convenience for the operator's work. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a side view of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the bottom cover of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 4 This is a partial structural schematic diagram of the fixing component of the present invention; Figure 5 This is a schematic diagram of the structure of the driving component of the present invention; Figure 6This is an exploded view of the structure of the upper cover and the bottom cover of the present invention; Figure 7 This is a schematic diagram of the structure of the connecting component of the present invention; Figure 8 This is a cross-sectional view of the mounting plate of the present invention.

[0019] In the diagram: 1. Ruler body; 2. Fixing component; 201. Slider; 202. First spring; 203. Disc; 204. Top roller; 205. Guide rod; 206. Balance rod; 207. Moving column; 208. Swing plate; 209. Push plate; 210. Second spring; 211. Placement plate; 212. Support plate; 213. Fixing column; 214. Mounting base; 3. Drive component; 301. Rotating column 302. Anti-detachment block; 303. Threaded pipe; 304. Moving plate; 305. Top block; 306. Sleeve; 307. Handle; 4. Connecting assembly; 401. Mounting plate; 402. Paddle; 403. Slot; 404. Locking rod; 405. Third spring; 406. Horizontal plate; 407. Limiting rod; 5. Top cover; 6. Bottom cover; 7. Blocking plate; 8. Mounting groove; 9. Movable groove; 10. Groove. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0024] Please see Figure 1-8 The present invention provides a technical solution: an adjustable intracranial drainage tube fixator, including a ruler body 1 and an upper cover 5 and a bottom cover 6 slidably connected to the outside of the ruler body 1, and the upper cover 5 and the bottom cover 6 are snapped together. The outer side of the ruler body 1 is provided with a scale. The interior of the upper cover 5 and the bottom cover 6 are respectively provided with two sets of mounting grooves 8, two sets of movable grooves 9 and two sets of recesses 10. A driving component 3 and two sets of fixing components 2 are provided between the upper cover 5 and the bottom cover 6. The fixing components 2 are located in the mounting grooves 8 and the driving components 3 are located in the movable grooves 9. Connecting components 4 are provided on both sides of the upper cover 5 and the bottom cover 6. Two sets of blocking plates 7 are fixedly connected inside the movable grooves 9.

[0025] Please see Figure 2-4 The fixing component 2 includes a slider 201 and a balance bar 206. The slider 201 is slidably connected inside the two sets of mounting slots 8, and the balance bar 206 is snapped into the two sets of mounting slots 8. A top rod 204 is fixedly connected to one side of the slider 201, and the top rod 204 is parallel to the groove 10. Two sets of mounting seats 214 are fixedly connected to the side of the slider 201 away from the top rod 204. A fixing post 213 is fixedly connected between the two sets of mounting seats 214. A swing plate 208 is rotatably connected to the outside of the fixing post 213. The swing plate 208 is inclined. A moving post 207 is rotatably connected to the side of the swing plate 208 away from the fixing post 213, and the moving post 207 is slidably connected to the outside of the balance bar 206. A placement plate 211 is fixedly connected to the outside of the balance bar 206. A push plate 209 is slidably connected to the outside of the balance bar 206, and a second spring 210 is fixedly connected between the push plate 209 and the placement plate 211.

[0026] Specifically, in order to maintain the balance of the slider 201, two sets of support plates 212 are fixedly connected to the outside of the balance rod 206. A guide rod 205 is fixedly connected to one side of the support plate 212, and the slider 201 is slidably connected to the outside of the two sets of guide rods 205. Thus, on the one hand, the guide rod 205 maintains the balance of the slider 201 during movement, preventing the slider 201 from becoming unbalanced and swaying during movement, and ensuring the normal displacement of the slider 201. On the other hand, the guide rod 205 restricts the direction of the slider 201, preventing the device from failing due to misalignment of the slider 201, and ensuring the normal use of the device.

[0027] Meanwhile, in order to enable the slider 201 to move back quickly, a disk 203 is fixedly connected to the outside of the guide rod 205, and a first spring 202 is fixedly connected between the disk 203 and the slider 201. Thus, when the slider 201 is pushed, the first spring 202 will be squeezed by the slider 201, and when the slider 201 is no longer pushed, the first spring 202 will bounce the slider 201 back quickly.

[0028] When the swing plate 208 is pushed to one side, the swing plate 208 will push the moving column 207 to move outside the balance bar 206. At the same time, the swing plate 208 will swing around the moving column 207 as the axis. The swing of the swing plate 208 will push the fixed column 213 to move. The displacement of the fixed column 213 will push the slider 201 to move by pushing the mounting base 214. The displacement of the slider 201 will push the top roller 204 to move. The movement of the top roller 204 will squeeze the ruler 1 into the groove 10, thereby making the upper cover 5 and the bottom cover 6 stably fixed in the current position.

[0029] This adjustable intracranial drainage tube fixator works by cooperating between the swing plate 208 and the slider 201. When the swing plate 208 is pushed to swing, one side of the swing plate 208 will push the top rod 204 to move by pushing the slider 201. The displacement of the top rod 204 will squeeze a part of the ruler 1 into the interior of the upper cover 5 and the bottom cover 6, thereby fixing the upper cover 5 and the bottom cover 6 stably in the current position. This avoids displacement caused by external forces such as traction from patient activities, collisions when turning over, or slight stretching in daily life, thus ensuring the normal installation of the drainage tube.

[0030] Please see Figure 2 and Figure 5The drive assembly 3 includes a threaded tube 303, which is rotatably connected to two sets of movable slots 9. Rotating columns 301 are fixedly connected to both ends of the threaded tube 303. A handle 307 is fixedly connected to the end of the rotating column 301 away from the threaded tube 303. A sleeve 306 is threaded onto the outer side of the threaded tube 303. Two sets of movable plates 304 are fixedly connected to both sides of the sleeve 306. A top block 305 is fixedly connected between the two sets of movable plates 304. The top block 305 is slidably connected to the outer side of the balance bar 206. An anti-detachment block 302 is fixedly connected to the outer side of the rotating column 301, and the anti-detachment block 302 is in contact with the blocking plate 7. The anti-detachment block 302 is blocked by the blocking plate 7 and cannot detach from the movable groove 9. Thus, the anti-detachment block 302 and the blocking plate 7 can block the threaded tube 303, preventing the threaded tube 303 from detaching from the upper cover 5 and the bottom cover 6. After turning the handle 307, the handle 307 will drive the rotating column 301 to rotate, thereby driving the threaded tube 303 to rotate. The rotation of the threaded tube 303 will drive the sleeve 306 to move linearly. The displacement of the sleeve 306 will push the moving plate 304 to move. The displacement of the moving plate 304 will push the top block 305 to move. The displacement of the top block 305 will push one side of the swing plate 208.

[0031] Please see Figure 1 , Figure 7 and Figure 8 The connecting component 4 includes a mounting plate 401, which is disposed on one side of the upper cover 5 and the bottom cover 6. Two sets of levers 402 are slidably disposed inside the mounting plate 401. A horizontal plate 406 is disposed on one side of each lever 402, and two sets of locking rods 404 are disposed on one side of the horizontal plate 406. Multiple sets of locking rods 404 are respectively engaged inside the upper cover 5 and the bottom cover 6. Two sets of slots 403 are formed inside the mounting plate 401. A limit rod 407 is fixedly disposed on the inner wall of the slot 403. The levers 402 are slidably disposed on the outer side of the limit rod 407, and a fixed connection is established between the levers 402 and the inner wall of the slots 403. When the paddle 402 is turned, the third spring 405 will be squeezed by the paddle 402. After the paddle 402 is released, the third spring 405 will bounce the paddle 402 back. When the paddle 402 is turned, the paddle 402 will push the horizontal plate 406 to move longitudinally. The displacement of the horizontal plate 406 will push the locking rod 404 to move longitudinally. At this time, multiple sets of locking rods 404 will be separated from the upper cover 5 and the bottom cover 6 respectively. Then the upper cover 5 and the bottom cover 6 will no longer be combined. At this time, the operator can easily separate the upper cover 5 and the bottom cover 6 to perform maintenance work on the parts on the fixing component 2 and the driving component 3.

[0032] This adjustable intracranial drainage tube fixator uses multiple sets of locking rollers 404 that engage with the upper cover 5 and the bottom cover 6 respectively. When the lever 402 is turned, the multiple sets of locking rollers 404 will disengage from the upper cover 5 and the bottom cover 6 respectively. At this time, the upper cover 5 and the bottom cover 6 are no longer combined, allowing the operator to easily maintain the parts on the fixation component 2 or the drive component 3. After the multiple sets of locking rollers 404 move back and engage with the upper cover 5 and the bottom cover 6 respectively, the upper cover 5 and the bottom cover 6 will be stably combined, thus completing the installation of the fixation component 2 and the drive component 3 stably and conveniently, providing convenience for the operator's work.

[0033] The adjustable intracranial drainage tube fixator provided by this invention, through the coordinated cooperation of its components, completely solves the core problem of unstable fixation of traditional spring buckles from a structural design perspective. It also considers both ease of clinical operation and patient safety. The ruler 1 of the device is made of high-strength, wear-resistant material, with clear and durable scale markings, maintaining accurate measurement performance over a long period. Compared to traditional measuring tapes, it has stronger tensile strength, effectively coping with external impacts during patients' daily activities, preventing deformation of the ruler 1 or blurring of the scale markings that could affect its use. The upper cover 5 and the bottom cover 6 adopt a snap-fit ​​design, combined with the locking function of the connecting component 4, enabling quick assembly and disassembly. After assembly, the device has good sealing properties, preventing dust and water stains from entering and corroding the fixing component 2 and the driving component 3, thus extending the overall service life of the device. The sliding fit between the guide rod 205 and the slider 201 in the fixing component 2 is highly precise. The symmetrical arrangement of the two sets of guide rods 205 maximizes the stability of the slider 201 during movement, preventing jamming or displacement.

[0034] In use, turning the handle 307 causes the rotating column 301 to rotate. The rotation of the rotating column 301 will cause the threaded tube 303 to rotate. The rotation of the threaded tube 303 will cause the sleeve 306 to move linearly. The displacement of the sleeve 306 will push the moving plate 304 to move. The displacement of the moving plate 304 will push the top block 305 to move. The displacement of the top block 305 will push one side of the swing plate 208. When one side of the swing plate 208 is pushed, the swing plate 208 will push the moving column 207 to move outside the balance bar 206. At the same time, the swing plate 208 will swing around the moving column 207 as the axis. The swing of the swing plate 208 will push the fixed column 213 to move. The displacement of the fixed column 213 will push the slider 201 to move by pushing the mounting base 214. The displacement of the slider 201 will push the top roller 204 to move. The movement of the top roller 204 will squeeze the ruler 1 into the groove 10, thereby making the upper cover 5 and the bottom cover 6 stably fixed in the current position.

[0035] When it is necessary to separate the upper cover 5 and the bottom cover 6, the lever 402 is moved to push the horizontal plate 406 to move longitudinally. The displacement of the horizontal plate 406 will push the clamping roller 404 to move longitudinally. At this time, multiple sets of clamping rollers 404 will separate from the upper cover 5 and the bottom cover 6 respectively. Then the upper cover 5 and the bottom cover 6 will no longer be combined. At this time, the operator can easily separate the upper cover 5 and the bottom cover 6 to perform maintenance work on the parts on the fixing component 2 and the driving component 3.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable intracranial drainage tube fixator, characterized in that, include: Ruler (1); The upper cover (5) is slidably disposed on the outside of the ruler body (1); Bottom cover (6), the bottom cover (6) is slidably disposed on the outside of the ruler body (1), and the bottom cover (6) and the top cover are engaged; Two sets of fixing components (2) are provided. The fixing components (2) include a slider (201) and a balance bar (206). The slider (201) is slidably disposed inside the upper cover (5) and the bottom cover (6). The balance bar (206) is snapped into the upper cover (5) and the bottom cover (6). A top rod (204) is provided on one side of the slider (201), and the top rod (204) is parallel to the ruler (1). A moving column (207) is slidably disposed on the outside of the balance bar (206). A swing plate (208) is rotatably disposed on the outside of the moving column (207), and the side of the swing plate (208) away from the moving column (207) is rotatably disposed on the side of the slider (201). Drive assembly (3), said drive assembly (3) being disposed between upper cover (5) and bottom cover (6); and Two sets of connecting components (4) are provided on the outside of the upper cover (5) and the bottom cover (6).

2. The adjustable intracranial drainage tube fixator according to claim 1, characterized in that, Two sets of mounting seats (214) are provided on one side of the slider (201), and a fixed column (213) is provided between the two sets of mounting seats (214). The side of the swing plate (208) away from the moving column (207) is rotatably set on the outside of the fixed column (213).

3. The adjustable intracranial drainage tube fixator according to claim 1, characterized in that, Two sets of support plates (212) are provided on the outside of the balance bar (206), and a guide rod (205) is provided on one side of the support plate (212). The slider (201) is slidably disposed on the outside of the two sets of guide rods (205).

4. The adjustable intracranial drainage tube fixator according to claim 3, characterized in that, A disk (203) is provided on the outer side of the guide rod (205), and a first spring (202) is provided on one side of the disk (203). The end of the first spring (202) away from the disk (203) is fixedly provided inside the slider (201).

5. The adjustable intracranial drainage tube fixator according to claim 1, characterized in that, A push plate (209) is slidably provided on the outside of the balance bar (206), and a placement plate (211) is fixedly provided on the outside of the balance bar (206). A second spring (210) is provided between the placement plate (211) and the push plate (209).

6. The adjustable intracranial drainage tube fixator according to claim 1, characterized in that, The drive assembly (3) includes two sets of rotating columns (301), which are rotatably disposed between the upper cover (5) and the bottom cover (6). A threaded tube (303) is disposed between the two sets of rotating columns (301), and a sleeve (306) is screwed onto the outside of the threaded tube (303). Two sets of moving plates (304) are respectively disposed on both sides of the sleeve (306), and a top block (305) is disposed between the two sets of moving plates (304). The top block (305) is slidably disposed on the outside of the guide rod (205).

7. The adjustable intracranial drainage tube fixator according to claim 1, characterized in that, The connecting component (4) includes a mounting plate (401), which is disposed on one side of the upper cover (5) and the bottom cover (6). Two sets of paddles (402) are slidably disposed inside the mounting plate (401). A horizontal plate (406) is disposed on one side of the paddles (402), and two sets of locking rods (404) are disposed on one side of the horizontal plate (406). Multiple sets of locking rods (404) are respectively locked inside the upper cover (5) and the bottom cover (6).

8. The adjustable intracranial drainage tube fixator according to claim 7, characterized in that, The mounting plate (401) has two sets of slots (403) inside. The inner wall of the slot (403) is fixedly provided with a limit rod (407), and the paddle (402) is slidably disposed on the outside of the limit rod (407).

9. The adjustable intracranial drainage tube fixator according to claim 8, characterized in that, A third spring (405) is fixedly installed on one side of the paddle (402), and the end of the third spring (405) away from the paddle (402) is fixedly installed on the inner wall of the slot (403).

10. The adjustable intracranial drainage tube fixator according to claim 6, characterized in that, An anti-detachment block (302) is provided on the outside of the rotating column (301), and two sets of baffles (7) are fixedly provided inside the upper cover (5) and the bottom cover (6), and the anti-detachment block (302) and the baffles (7) are in contact.

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