Mannitol pumping auxiliary device for treating encephaledema after aneurysm clipping operation
By combining a knob-driven helical transmission structure with a heating component, the problems of inconvenient syringe fixation and drug crystallization blockage were solved, ensuring stable mannitol infusion and patient comfort, and enabling effective treatment of cerebral edema after aneurysm clipping surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE FIFTH MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL
- Filing Date
- 2026-01-16
- Publication Date
- 2026-05-08
AI Technical Summary
Existing mannitol pump-injection auxiliary devices have inconvenient syringe fixation, poor stability, and are prone to drug administration interruption. Furthermore, they cannot effectively heat and maintain the temperature, leading to drug crystallization that blocks the tubing and causes adverse reactions in patients.
An auxiliary device was designed, comprising a mounting base, a clamping assembly, a heating assembly, an electric push rod, and an anti-shake assembly. The syringe is clamped in a ring-like manner through a knob-driven helical transmission structure. Combined with the heating rod and heat-conducting plate, mannitol is heated at a constant temperature to prevent crystallization and ensure a continuous and stable input of the drug.
It achieves stable fixation of the syringe, avoids drug administration interruption, improves the continuity of treatment and patient comfort, prevents drug crystallization blockage, and enhances the reliability and tolerability of treatment.
Smart Images
Figure CN121987883A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mannitol injection technology, and in particular to a mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery. Background Technology
[0002] Aneurysm clipping surgery is a common surgical procedure for treating intracranial aneurysms. It involves surgically clipping a specially designed aneurysm clip onto the neck of the aneurysm through craniotomy, thereby blocking blood flow between the aneurysm and the parent artery, preventing rupture and bleeding, and providing a stable physiological environment for intracranial tissues. However, this procedure inevitably causes some traction, stimulation, and ischemia-reperfusion injury to brain tissue. Postoperatively, cerebral edema is a common complication. Cerebral edema leads to increased intracranial pressure, and if not controlled promptly and effectively, it may compress surrounding nerve tissue, causing neurological dysfunction, and in severe cases, even endangering the patient's life. Since life is at stake, standardized treatment for cerebral edema after surgery is crucial. Mannitol, a commonly used hypertonic dehydrating agent in clinical practice, can rapidly increase plasma osmotic pressure, promote the transfer of excess water in brain tissue into blood vessels, and then excrete it through the kidneys, thereby effectively reducing cerebral edema and lowering intracranial pressure. It is one of the core drugs for the treatment of cerebral edema after aneurysm clipping. Because the therapeutic effect of mannitol is closely related to the precise control of the administration rate and dosage, and the administration process needs to be continuous and stable, it is usually administered via pump in clinical practice. This requires a special auxiliary device to ensure the fixation of the syringe and the stable delivery of the drug solution.
[0003] However, existing auxiliary devices for mannitol infusion have the following problems: 1. Most devices have unreasonable syringe fixing structures, making operation cumbersome and time-consuming. They use simple clamp-type fixing, lacking reliable self-locking capability. During the process of the electric plunger pushing the syringe plunger for infusion, the syringe is prone to displacement or even slippage due to continuous force, leading to interruption of drug infusion. This not only affects the treatment effect but may also cause intracranial pressure fluctuations due to discontinuous drug administration, increasing patient risk. Simultaneously, the syringe plunger is prone to shaking during pushing, similarly affecting the continuity of infusion. In other words, existing technologies have... 1. The existing technology has several problems: 1) Inconvenient syringe fixation and poor fixation stability, which can easily lead to drug administration interruption; 2) Mannitol is prone to crystallization at low temperatures, and it is difficult to completely avoid the effects of low temperatures during clinical storage and use. If crystallized mannitol is directly pumped in, it can easily block the infusion line. At the same time, the direct administration of low-temperature drug solution into the patient's body can stimulate blood vessels and cause vasospasm, and may also cause patients to experience discomfort such as chills, reducing the patient's treatment comfort and tolerance. In other words, the existing technology cannot effectively heat and keep the mannitol solution warm, which can easily lead to drug crystallization, blockage of the line, and adverse reactions in patients. Summary of the Invention
[0004] This invention provides a mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery, which solves the technical problems of inconvenient syringe fixation, poor fixation stability, easy interruption of drug administration, inability to effectively heat and keep the mannitol solution warm, easy crystallization of the solution clogging the tubing and causing adverse reactions in patients.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0006] A mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery includes an injection setting, a mounting base, and a drive adjustment assembly. The mounting base is provided with at least two connecting blocks, which are slidably connected to the inner wall of the injection setting.
[0007] The mounting base is provided with a clamping assembly, and the mounting base is snapped into the syringe through the clamping assembly. The inner wall of the clamping assembly is provided with a heating assembly, which heats the syringe. The inner wall of the mounting base is provided with an electric push rod, and the output end of the electric push rod is fixedly connected to a U-shaped frame. The electric push rod pushes the syringe piston handle to move through the U-shaped frame.
[0008] The drive adjustment assembly includes an adjustment housing, which is fixedly connected to the side wall of the mounting base, and a fixing screw is fixedly connected to the inner wall of the adjustment housing; a mating sleeve is threadedly connected to the outer wall of the fixing screw, and a first knob is fixedly connected to one end of the mating sleeve; a spiral connecting rod is installed on the side wall of the first knob, and the spiral connecting rod is sleeved on the mating sleeve; the drive adjustment assembly controls the clamping assembly to clamp the syringe.
[0009] The side wall of the injection setting component is equipped with a quick-release assembly, which allows for the detachable connection between the mounting base and the injection setting component via the quick-release assembly and the connecting block; the side wall of the U-shaped frame is equipped with an anti-sway assembly, which clamps the syringe piston handle.
[0010] Optionally, a plurality of rotating holes are evenly formed on one side of the outer wall of the mounting base along the length direction of the mounting base. The clamping assembly includes a rotating rod, which is rotatably connected in the rotating holes. The side wall of the rotating rod is fixedly connected to the arc plate. A spiral hole is formed at one end of the arc plate, and the spiral hole is adapted to the spiral connecting rod. Anti-slip clamping pads are symmetrically provided on both sides of the inner side wall of the arc plate.
[0011] Optionally, the quick-release assembly includes a slide groove, the number of which is equal to the number of connecting blocks. The slide groove is formed on the side wall of the injection device. A fixing rod is fixedly connected inside the slide groove, and a slider is slidably connected to the fixing rod. When the connecting block is inserted into the injection device, the slider supports engagement with the connecting block. A lever is fixedly connected to the side wall of the slider. A strong spring is sleeved on the outer wall of the fixing rod, and the strong spring is fixedly connected between the slider and the inner wall of the slide groove.
[0012] Optionally, the anti-sway assembly includes a fixing plate, which is fixedly connected to the inner wall of the U-shaped frame, and a drive gear is rotatably connected to one side wall of the fixing plate. One end of the drive gear is fixedly connected to a worm gear; the worm gear is located on the other side wall of the fixing plate.
[0013] Multiple sets of toothed plates are rotatably connected to the side wall of a fixed plate and are symmetrically distributed horizontally about the fixed plate. The symmetrical toothed plates are meshed with each other. The outer wall of the toothed plate at the bottom is meshed with the outer wall of the drive gear. A drive plate is fixed to the side wall of the toothed plate. A driven plate is rotatably connected to the end of the drive plate away from the toothed plate. A clamping block is fixedly connected to the end of the driven plate away from the drive plate. The side wall of the clamping block has a placement groove that cooperates with the syringe piston handle.
[0014] Optionally, a drive rod is rotatably connected to the other side wall of the fixed plate, a second knob is fixedly connected to the top of the drive rod, and a worm gear that meshes with the worm wheel is fixedly connected to the outer wall of the drive rod.
[0015] Optionally, the sidewall of the fixed plate is rotatably connected to multiple sets of linkage plates symmetrically distributed about the horizontal direction of the fixed plate. The number of linkage plates is equal to the number of driven plates, and the linkage plates are rotatably connected to the corresponding driven plates.
[0016] Optionally, the mounting base has multiple sets of guide rods fixedly connected to its side wall, and the guide rods are slidably connected to the U-shaped frame.
[0017] Optionally, the heating assembly includes heating rods, and the inner wall of the arc-shaped plate is provided with multiple sets of heating rods. A heat-conducting plate is fixedly connected to the inner side wall of the arc-shaped plate, and the side wall of the heat-conducting plate abuts against the outer wall of the syringe. The heat-conducting plate covers the heating rods.
[0018] Optionally, the inner wall of the adjusting housing is provided with a spiral groove, and the spiral groove cooperates with the spiral connecting rod.
[0019] The beneficial effects of the above-described technical solution of the present invention are as follows:
[0020] In the above solution, a screw drive structure driven by a knob achieves a ring-like clamping of the syringe by the arc plate. Operation can be completed simply by turning the knob, which is simple and convenient. At the same time, the pre-tightening force applied by the screw drive can firmly fix the syringe, preventing it from shifting or slipping due to squeezing force during pumping. In addition, the anti-shaking component forms a stable squeezing fixation of the syringe plunger through gear and toothed plate linkage. Combined with the guiding effect of the guide rod on the U-shaped frame, it ensures that the plunger is subjected to uniform force and moves smoothly. This dual-dimensional approach ensures a continuous and stable infusion of the drug solution, avoids the risk of drug administration interruption, meets the strict requirements for the treatment of cerebral edema after aneurysm clipping, and ensures a continuous and stable infusion of the drug solution. It solves the problems of inconvenient syringe fixation operation, poor fixation stability, and easy interruption of drug administration in the prior art.
[0021] By using a heating rod in conjunction with a heat-conducting plate to form direct contact heating, the mannitol inside the syringe can be gently heated and maintained at a constant temperature. This prevents mannitol from crystallizing at low temperatures and clogging the infusion tubing. At the same time, it can prevent adverse reactions such as vasospasm and chills caused by direct infusion of low-temperature medication, thereby improving patient comfort and enhancing their tolerance to treatment. This solves the problem in existing technologies that cannot effectively heat and maintain the temperature of mannitol, which easily leads to crystallization that clogs the tubing and causes adverse reactions in patients.
[0022] The quick-release assembly, through the cooperation of a lever and a strong spring, enables rapid assembly and disassembly of the mounting base without the need for additional tools. This significantly reduces the time required for device assembly, syringe fixation, and subsequent maintenance, improving clinical operation efficiency and making it particularly suitable for emergency treatment scenarios. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the mannitol infusion auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0024] Figure 2 This is a schematic diagram of the internal structure of the adjusting housing of the mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0025] Figure 3 An exploded view of the mannitol pumping auxiliary device for treating cerebral edema after aneurysm clipping surgery according to the present invention.
[0026] Figure 4 This is a schematic diagram of the arc-shaped plate portion of the mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0027] Figure 5 This is a schematic diagram of the heating rod portion of the mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0028] Figure 6 This is a schematic diagram of the chute portion of the mannitol pumping auxiliary device for treating cerebral edema after aneurysm clipping surgery according to the present invention.
[0029] Figure 7 This is a schematic diagram of the slider part of the mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0030] Figure 8 This is one of the schematic diagrams of the fixation plate portion of the mannitol infusion auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0031] Figure 9This is the second schematic diagram of the fixation plate portion of the mannitol infusion auxiliary device for the treatment of cerebral edema after aneurysm clipping surgery according to the present invention.
[0032] [Figure Labels]
[0033] 1. Injection setting component; 2. Mounting base; 3. Electric push rod; 4. U-shaped frame; 5. Adjusting housing; 6. Fixing screw; 7. Connecting sleeve; 8. First knob; 9. Helical connecting rod; 10. Helical groove; 11. Rotary hole; 12. Rotating rod; 13. Arc plate; 14. Helical hole; 15. Syringe; 16. Heat-conducting plate; 17. Anti-slip clamping pad; 18. Heating rod; 19. Connecting block; 20. Slide groove; 21. Fixing rod; 22. Strong spring; 23. Slider; 24. Paddle plate; 25. Guide rod; 26. Fixing plate; 27. Drive gear; 28. Gear plate; 29. Drive plate; 30. Driven plate; 31. Linkage plate; 32. Clamping block; 33. Placement groove; 34. Drive rod; 35. Second knob; 36. Worm gear; 37. Worm wheel. Detailed Implementation
[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0035] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0036] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0037] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0038] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0039] like Figures 1 to 9 As shown, an embodiment of the present invention provides a mannitol pumping auxiliary device for the treatment of cerebral edema after aneurysm clipping, including an injection setting component 1, and also including multiple sets of connecting blocks 19 and a drive adjustment component.
[0040] Multiple sets of connecting blocks 19 are slidably connected to the inner wall of the injection setting component 1, and the connecting blocks 19 are symmetrically distributed about the vertical direction of the injection setting component 1. A mounting base 2 is mounted on the side wall of the connecting blocks 19. Multiple sets of rotating holes 11 are evenly distributed along the length of the mounting base 2 on its outer wall. The mounting base 2 is engaged with the syringe 15 via an arc-shaped plate 13 on the clamping assembly. Multiple sets of heating rods 18 are fixedly connected to the inner wall of the arc-shaped plate, thereby heating the syringe 15. An electric push rod 3 is provided on the inner wall of the mounting base 2, and a U-shaped frame 4 is fixedly connected to the output end of the electric push rod 3. The electric push rod 3 moves the piston handle of the syringe 15 through the U-shaped frame 4.
[0041] The drive adjustment assembly includes an adjustment housing 5, which is fixedly connected to the side wall of the mounting base 2, and a fixing screw 6 is fixedly connected to the inner wall of the adjustment housing 5; a mating sleeve 7 is threadedly connected to the outer wall of the fixing screw 6, and a first knob 8 is fixedly connected to one end of the mating sleeve 7; a spiral connecting rod 9 is fixedly connected to the side wall of the first knob 8 and sleeved on the mating sleeve 7, and the drive adjustment assembly cooperates with the clamping assembly.
[0042] like Figures 1 to 4As shown, the clamping assembly includes a rotating rod 12. Several rotating holes 11 are evenly distributed along the length of the mounting base 2 on one side of its outer wall. The rotating rod 12 is rotatably connected within each rotating hole 11. The rotating rod 12 is rotatably connected to the outer wall of the mounting base 2 through the rotating holes 11, and its side wall is fixedly connected to the arc-shaped plate 13. A spiral hole 14 is provided at one end of the arc-shaped plate 13.
[0043] The spiral hole 14 and the spiral connecting rod 9 cooperate with each other. One end of the syringe 15 is located within a plurality of arc-shaped plates 13.
[0044] Place the syringe 15 containing mannitol between the arc plates 13 on the mounting base 2, and turn the first knob 8. Because the docking sleeve 7 is threadedly connected to the fixing screw 6 in the adjusting housing 5, the first knob 8 will drive the docking sleeve 7 to move axially along the fixing screw 6. At the same time, the spiral connecting rod 9 on the side wall of the first knob 8 will rotate synchronously and be gradually inserted into the spiral holes 14 of each arc plate 13.
[0045] The side wall of the injection setting component 1 is provided with a quick-release assembly, which allows the mounting base 2 to be disassembled and assembled with the injection setting component 19 via the quick-release assembly and the connecting block 19; the side wall of the U-shaped frame 4 is provided with an anti-shake assembly, which cooperates with the syringe 15.
[0046] The inner sidewall of the arc plate 13 is symmetrically provided with anti-slip clamping pads 17 on both sides. The cooperation between the spiral connecting rod 9 and the spiral hole 14 pushes multiple sets of rotating rods 12 to rotate in the rotating hole 11 of the mounting base 2. During the cooperation between the spiral connecting rod 9 and the spiral hole 14, the arc plate 13 is squeezed and pulled by the spiral connecting rod 9, which in turn drives the rotating rod 12 to rotate. The arc plate 13 converges towards the syringe 15 until the anti-slip clamping pads 17 on the sidewall of the arc plate 13 are tightly attached to the outer wall of the syringe 15, thereby achieving a ring-shaped fixation of the syringe 15.
[0047] like Figures 1 to 7As shown, the quick-release assembly includes a slide groove 20. Multiple slide grooves 20 are formed on the side wall of the injection setting component 1 and are symmetrically distributed about the vertical direction of the injection setting component 1. The number of slide grooves 20 is equal to the number of mounting points of the connecting blocks 19 and their positions correspond to each other. The slider 23 is slidably connected to the inner wall of the slide groove 20. The slider 23 can be engaged with the corresponding connecting block 19. A lever 24 is fixedly connected to the side wall of the slider 23. A fixed rod 21 is provided inside the slide groove 20. The slider 23 is slidably connected to the fixed rod 21. A strong spring 22 is sleeved on the outer wall of the fixed rod 21 and is fixedly connected between the slider 23 and the inner wall of the slide groove 20. During operation, the slider 23 is first pushed along the fixed rod 21 inside the slide groove 20 by the lever 24. At this time, the slider 23 compresses the strong spring 22 sleeved on the fixed rod 21, opening the docking channel between the slider 23 and the corresponding connecting block 19. At this time, there is no obstruction at the installation point of the connecting block 19. Align the connecting block 19 on the side wall of the mounting base 2 with the slide rail on the inner wall of the injection setting 1, i.e., the slide rail at the installation point of the connecting block 19, and push it in. After releasing the lever 24, the strong spring 22 returns to its original position and pushes the slider 23 into the positioning structure of the connecting block 19, completing the quick fixing of the mounting base 2 and the injection setting 1. To disassemble, simply push the lever 24 again to unlock it without the need for additional tools. The fixed rod 21 provides a stable guiding force for the slider 23, ensuring that the slider 23 slides accurately into the connecting block 19.
[0048] like Figures 8 to 9 As shown, the anti-sway assembly includes a fixed plate 26, which is fixedly connected to the inner wall of the U-shaped frame 4, and a drive gear 27 is rotatably connected to the side wall of the fixed plate 26. A worm gear 37 is fixedly connected to the outer wall of one end of the drive gear 27. Multiple sets of toothed plates 28 are rotatably connected to the side wall of the fixed plate 26 and are symmetrically distributed about the horizontal direction of the fixed plate 26. The symmetrical toothed plates 28 are meshed with each other, and the outer wall of the bottom toothed plate 28 is meshed with the drive gear 27.
[0049] The drive plate 29 is fixedly connected to the side wall of the toothed plate 28, and the driven plate 30 is rotatably connected to the end of the drive plate 29 away from the toothed plate 28. The clamping block 32 is fixedly connected to the end of the driven plate 30 away from the drive plate 29. The side wall of the clamping block 32 is provided with a placement groove 33 that cooperates with the syringe 15.
[0050] A drive rod 34 is rotatably connected to the side wall of the fixed plate 26. The drive rod 34 and the worm gear 37 are located on the same side, and the drive rod 34 and the drive gear 27 are located on opposite sides of the fixed plate 26. One end of the drive gear 27 passes through the fixed plate 26 and is fitted with the worm gear 37. A second knob 35 is fixedly connected to the top of the drive rod 34, and a worm 36 that meshes with the worm gear 37 is fixedly connected to the outer wall of the drive rod 34. Rotating the second knob 35 drives the drive rod 34 to rotate, which in turn drives the worm 36 to rotate, which in turn meshes with the worm gear 37 to rotate. Because the worm gear 37 and the worm 36 have a mechanical self-locking characteristic, it can prevent the plunger of the syringe 15 from shifting or shaking.
[0051] The side wall of the fixed plate 26 is rotatably connected to multiple sets of linkage plates 31 that are symmetrically distributed in the horizontal direction about the fixed plate 26, and the linkage plates 31 are rotatably connected to the driven plate 30, so that the driven plate 30 can be moved in a specific direction through the linkage plates 31.
[0052] Rotating the second knob 35 causes the drive rod 34 to rotate. The worm 36 on the outer wall of the drive rod 34 meshes with the worm wheel 37, causing the worm wheel 37 to drive the drive gear 27 to rotate. The drive gear 27 meshes with the bottom toothed plate 28. Since the two sets of toothed plates 28 mesh with each other and are symmetrically distributed, when the drive gear 27 rotates, it drives the two sets of toothed plates 28 to move in opposite directions. The toothed plates 28 drive the drive plate 29 to push the driven plate 30. Under the guidance of the linkage plate 31, the two sets of clamping blocks 32 move closer to the push handle of the syringe 15 until the placement groove 33 fits and is fixed to the push handle.
[0053] like Figures 1 to 9 As shown, multiple sets of guide rods 25 are fixedly connected to the side wall of the mounting base 2, and the guide rods 25 are slidably connected to the U-shaped frame 4. The guide rods 25 provide stable guiding force for the movement of the U-shaped frame 4. When the electric push rod 3 is activated, its output end pushes the U-shaped frame 4 to slide smoothly along the guide rods 25 on the side wall of the mounting base 2. The U-shaped frame 4 drives the syringe 15 push handle to advance at a uniform speed through the anti-shake component, realizing precise pumping of the liquid medicine. The guide rods 25 can ensure the stability of the movement direction of the U-shaped frame 4 and avoid the push handle being deflected by force, which would affect the pumping rate.
[0054] like Figure 4 and Figure 5 As shown, a heat-conducting plate 16 is fixedly connected to the inner wall of the arc-shaped plate 13, and the side wall of the heat-conducting plate 16 abuts against the outer wall of the syringe 15. The heating rod 18 is a metal heating rod, and the heat-conducting plate 16 covers the heating rod 18. When the heating rod 18 on the inner wall of the arc-shaped plate 13 is activated, the heat generated by the heating rod 18 is transferred to the heat-conducting plate 16 on the side wall of the arc-shaped plate 13. The heat-conducting plate 16 abuts against the outer wall of the syringe 15, and the heat is directly conducted to the mannitol solution inside the syringe 15 to achieve constant temperature heating.
[0055] like Figure 3 As shown, a spiral groove 10 is formed on the inner wall of the adjusting housing 5, and the spiral groove 10 cooperates with the spiral connecting rod 9. The spiral groove 10 plays an auxiliary guiding role for the spiral connecting rod 9. The principle of the spiral groove 10 is similar to the thread groove of a screw.
[0056] like Figure 1 As shown, the electric push rod 3 is parallel to the syringe 15 and is located below the adjusting housing 5. Multiple rotating holes 11 are located below the adjusting housing 5.
[0057] The working process of the mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping provided by this invention is as follows:
[0058] During operation, first push the slider 23 along the fixed rod 21 in the slide groove 20 using the lever 24. At this time, the slider 23 compresses the strong spring 22 sleeved outside the fixed rod 21, opening the docking channel between the slider 23 and the connecting block 19. Align the connecting block 19 on the side wall of the mounting base 2 with the slide rail on the inner wall of the injection setting 1 and push it in. After releasing the lever 24, the strong spring 22 returns to its original position, pushing the slider 23 into the positioning structure of the connecting block 19, thus completing the quick fixing of the mounting base 2 and the injection setting 1. To disassemble, simply push the lever 24 repeatedly to unlock it, without the need for additional tools. Place the syringe 15 containing mannitol on the arc of the mounting base 2. Between the shaped plates 13, rotating the first knob 8 causes the docking sleeve 7 to move axially along the fixing screw 6 inside the adjusting housing 5 due to the threaded connection between the docking sleeve 7 and the fixing screw 6. Simultaneously, the spiral connecting rod 9 on the side wall of the first knob 8 rotates synchronously and is gradually inserted into the spiral holes 14 of each shaped plate 13. The cooperation between the spiral connecting rod 9 and the spiral holes 14 pushes multiple sets of rotating rods 12 to rotate in the rotating holes 11 of the mounting base 2, causing the shaped plates 13 to converge toward the syringe 15 until the anti-slip clamping pad 17 on the side wall of the shaped plate 13 is tightly attached to the outer wall of the syringe 15, thus achieving a circumferential fixation of the syringe 15.
[0059] After fixing, the heating rod 18 on the inner wall of the arc plate 13 is activated. The heat generated by the heating rod 18 is transferred to the heat-conducting plate 16 on the side wall of the arc plate 13. The heat-conducting plate 16 abuts against the outer wall of the syringe 15, directly conducting the heat to the mannitol solution inside the syringe 15 to achieve constant temperature heating. After the solution is heated to a suitable temperature, the parameters are adjusted by the injection setting component 1 and the electric push rod 3 on the inner wall of the mounting base 2 is activated for pumping. Before pumping, the second knob 35 is turned to drive the drive rod 34 to rotate. The worm gear 36 on the outer wall of the drive rod 34 meshes with the worm wheel 37, causing the worm wheel 37 to drive the drive gear 27 to rotate. The drive gear 27 meshes with the bottom toothed plate 28. Since the two sets of toothed plates 28 mesh with each other and are symmetrically distributed, when the drive gear 27 rotates, it drives the two sets of toothed plates 28 to move in opposite directions. The toothed plates 28 drive the drive plate 29 to push the driven plate 30. Under the guidance of the linkage plate 31, the two sets of clamping blocks 32 move closer to the push handle of the syringe 15 until the placement groove 33 fits and is fixed with the push handle. The electric push rod 3 is started, and its output end pushes the U-shaped frame 4 to slide smoothly along the guide rod 25 on the side wall of the mounting base 2. The U-shaped frame 4 drives the push handle of the syringe 15 to advance at a uniform speed through the anti-shaking component, so as to achieve precise pumping of medicine. The guide rod 25 can ensure the stability of the movement direction of the U-shaped frame 4 and avoid the push handle being deflected by force, which affects the pumping rate.
[0060] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0061] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery, comprising an injection setting component, characterized in that, It also includes a mounting base and a drive adjustment assembly. The mounting base is provided with at least two connecting blocks, which are slidably connected to the inner wall of the injection setting component. The mounting base is provided with a clamping assembly, and the mounting base is snapped into the syringe through the clamping assembly. The inner wall of the clamping assembly is provided with a heating assembly, which heats the syringe. The inner wall of the mounting base is provided with an electric push rod, and the output end of the electric push rod is fixedly connected to a U-shaped frame. The electric push rod pushes the syringe piston handle to move through the U-shaped frame. The drive adjustment assembly includes an adjustment housing, which is fixedly connected to the side wall of the mounting base, and a fixing screw is fixedly connected to the inner wall of the adjustment housing; a mating sleeve is threadedly connected to the outer wall of the fixing screw, and a first knob is fixedly connected to one end of the mating sleeve; a spiral connecting rod is installed on the side wall of the first knob, and the spiral connecting rod is sleeved on the mating sleeve; the drive adjustment assembly controls the clamping assembly to clamp the syringe. The side wall of the injection setting component is equipped with a quick-release assembly, which allows for the detachable connection between the mounting base and the injection setting component via the quick-release assembly and the connecting block; the side wall of the U-shaped frame is equipped with an anti-sway assembly, which clamps the syringe piston handle.
2. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 1, characterized in that, A plurality of rotating holes are evenly provided on one side of the outer wall of the mounting base along the length of the mounting base. The clamping assembly includes a rotating rod, which is rotatably connected in the rotating holes. The side wall of the rotating rod is fixedly connected to the arc plate. A spiral hole is provided at one end of the arc plate, and the spiral hole is adapted to the spiral connecting rod. Anti-slip clamping pads are symmetrically provided on both sides of the inner side wall of the arc plate.
3. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 1, characterized in that, The quick-release assembly includes a slide groove, the number of which is equal to the number of connecting blocks. The slide groove is formed on the side wall of the injection device. A fixing rod is fixedly connected inside the slide groove, and a slider is slidably connected to the fixing rod. When the connecting block is inserted into the injection device, the slider supports engagement with the connecting block. A lever is fixedly connected to the side wall of the slider. A strong spring is sleeved on the outer wall of the fixing rod, and the strong spring is fixedly connected between the slider and the inner wall of the slide groove.
4. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 1, characterized in that, The anti-sway assembly includes a fixing plate, which is fixedly connected to the inner wall of the U-shaped frame. A drive gear is rotatably connected to one side wall of the fixing plate, and a worm gear is fixedly connected to one end of the drive gear. The worm gear is located on the other side wall of the fixing plate. Multiple sets of toothed plates are rotatably connected to the side wall of a fixed plate and are symmetrically distributed horizontally about the fixed plate. The symmetrical toothed plates are meshed with each other. The outer wall of the toothed plate at the bottom is meshed with the outer wall of the drive gear. A drive plate is fixed to the side wall of the toothed plate. A driven plate is rotatably connected to the end of the drive plate away from the toothed plate. A clamping block is fixedly connected to the end of the driven plate away from the drive plate. The side wall of the clamping block has a placement groove that cooperates with the syringe piston handle.
5. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 4, characterized in that, A drive rod is rotatably connected to the other side wall of the fixed plate. A second knob is fixedly connected to the top of the drive rod, and a worm gear that meshes with the worm wheel is fixedly connected to the outer wall of the drive rod.
6. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 4, characterized in that, The side wall of the fixed plate is rotatably connected to multiple sets of linkage plates symmetrically distributed about the horizontal direction of the fixed plate. The number of linkage plates is equal to the number of driven plates, and the linkage plates are rotatably connected to the corresponding driven plates.
7. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 1, characterized in that, The mounting base has multiple sets of guide rods fixedly connected to its side wall, and the guide rods are slidably connected to the U-shaped frame.
8. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 2, characterized in that, The heating assembly includes heating rods, and multiple sets of heating rods are provided on the inner wall of the arc-shaped plate. A heat-conducting plate is fixedly connected to the inner side wall of the arc-shaped plate, and the side wall of the heat-conducting plate abuts against the outer wall of the syringe. The heat-conducting plate covers the heating rods.
9. The mannitol infusion auxiliary device for treating cerebral edema after aneurysm clipping surgery according to claim 1, characterized in that, The inner wall of the adjusting housing is provided with a spiral groove, and the spiral groove cooperates with the spiral connecting rod.