Automatic urokinase injection device suitable for lower limb artery stenosis
By designing an automatic urokinase injection device, the orderly injection of urokinase is achieved by using a stepper motor to drive the extrusion roller to roll on the extrusion ring, solving the problem of manual control of time and high cost, and achieving accurate injection and cost control.
Patent Information
- Application Number
- CN202420459373.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-11
AI Technical Summary
In the prior art, in the treatment of lower limb artery stenosis, the injection control of urokinase relies on manual operations, resulting in long-term occupation and high costs for medical staff, and the equipment parts contact with the liquid increases the cost of use.
An automatic urokinase injection device including a driving host, a urokinase injection controller, an extrusion roller and a control panel was designed. The stepper motor drives the extrusion roller to roll on the extrusion ring to achieve orderly injection of the medicine liquid. And set infusion parameters through the control panel and remote computer to reduce manual intervention.
Accurate injection of urokinase is achieved, reducing pressure on medical staff, reducing usage costs, and reducing long-term maintenance costs by simply disinfecting and reusing equipment.
Smart Images
Figure CN222265905U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a medical device, in particular to an automatic urokinase injection device suitable for lower limb artery stenosis. Background Art
[0002] Urokinase is commonly used for lower extremity artery stenosis caused by blood clots blocking blood vessels and other cases requiring thrombolysis. The treatment of this disease usually uses urokinase (concentration 2500 units / ml) prepared with normal saline drip, and then injects the drug solution through the catheter at a rate of 4000 units / minute, and then gradually adjusts the drip rate to 1000 units / minute until the blood clot dissolves. During this period, the catheter needs to be clamped once every half an hour or 2 hours, and the continuous thrombolysis time is extremely long; the current control is mainly manually controlled by doctors or nurses, which will occupy medical staff and due to the long thrombolysis process, medical staff need to control it at regular times and at fixed points, resulting in serious waste of manpower. At present, a utility model with announcement number CN214857188U discloses an intelligent push injection device for PICC catheter thrombolysis, including a mounting plate, on which a push injection mechanism is arranged, the push injection mechanism includes an injection tube, the left end of the injection tube is fixedly connected to a cylinder, and the operation of the electromagnetic three-way valve and the negative pressure pump is controlled by a control panel to automatically inject urokinase in the injection tube into the negative pressure PICC tube cavity to achieve the purpose of thrombolysis. At the same time, the electromagnetic flowmeter on the connecting tube will automatically calculate the outflow of urokinase solution. When the outflow of urokinase solution reaches 5ml, the control panel will control the electromagnetic valve on the connecting tube to close and automatically alarm to remind the nurse to replace the urokinase solution. Through this setting, the push injection of PICC tube thrombolysis can be automatically carried out, replacing the traditional manual push injection, greatly reducing the consumption of manpower, saving medical staff time, and improving the practicality of the device when used. However, this patent mainly uses a syringe to provide liquid medicine to the catheter. The catheter itself has a small capacity and needs to be replaced frequently during use. At the same time, the large number of sensors will also increase the production cost, and a large number of components are in direct contact with the liquid medicine. Whether it is cleaned or discarded later, it will further increase the cost of use, thereby affecting the promotion of the equipment. Utility Model Content
[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides an automatic urokinase injection device suitable for lower limb artery stenosis, which can accurately control the injection of urokinase, effectively reduce the pressure of medical staff, improve the injection rate accuracy and control the use cost.
[0004] In order to achieve the above-mentioned purpose, the utility model is suitable for an automatic urokinase injection device for lower limb artery stenosis, comprising a driving host, an upper pipe hoop, a urokinase injection controller, a lower pipe hoop, a working status indicator light, an antenna, a spare hanging ring and a control panel, wherein a cylindrical urokinase injection controller is fixedly installed at the front of the driving host, the upper pipe hoop and the lower pipe hoop pass through the side of the urokinase injection controller, and the upper pipe hoop and the lower pipe hoop are on the same axis, the working status indicator light is fixedly installed at the front of the driving host, and the antenna is fixedly installed at the side of the driving host; the urokinase injection controller also includes a driving shaft, a squeezing roller driving arm, a squeezing roller, a urokinase injection controller housing, a squeezing ring and a urokinase injection controller front cover, the urokinase injection controller housing is installed with the urokinase injection controller front cover by folding and buckling, the squeezing ring is installed inside the urokinase injection controller housing, the driving shaft is installed at the origin of the circular urokinase injection controller housing, the squeezing roller driving arms are installed at equal intervals on the sides of the driving shaft, the end of the squeezing roller driving arm is connected to the squeezing roller through a rotating shaft, and the squeezing roller rolls on the surface of the squeezing ring; the stepping motor built into the driving host drives the driving shaft, and the driving host has a built-in battery pack and a controller.
[0005] In addition, the automatic urokinase injection device for lower extremity artery stenosis according to the above embodiment of the utility model may also have the following additional technical features:
[0006] As a further improvement of the present invention, a rectangular window is provided at the rear of the driving host to install a control panel.
[0007] As a further improvement of the utility model, a hanging ring is fixedly installed on the top of the driving mainframe by screws.
[0008] As a further improvement of the utility model, the surface of the squeezing roller is provided with soft rubber.
[0009] As a further improvement of the present invention, soft rubber is laid on the inner side of the extrusion ring.
[0010] By means of the above scheme, the utility model has at least the following advantages: compared with the conventional manual control of injection speed, the injection of urokinase can be accurately controlled by squeezing the catheter inside the squeezing ring with the squeezing roller to press the drug in the catheter into the patient's body. By driving the built-in controller of the host to control the stepper motor to rotate as needed, the pressure of medical staff can be effectively reduced, and the drug solution can be gradually and orderly entered into the patient's body under the control of the squeezing roller. Since no parts of the whole body contact the drug solution, it only needs simple disinfection to be reused, so the use cost can be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a front view stereoscopic schematic diagram of an automatic urokinase injection device suitable for lower extremity artery stenosis;
[0012] Figure 2 yes Figure 1 Rear view of
[0013] Figure 3 yes Figure 1 A stereoscopic view of the urokinase injection controller with the front cover removed;
[0014] In the figure: 1. driving host, 2. upper pipe clamp, 3. urokinase injection controller, 3-1. driving shaft, 3-2. squeezing roller driving arm, 3-3. squeezing roller, 3-4. urokinase injection controller housing, 3-5. squeezing ring, 3-6. urokinase injection controller front cover, 4. lower pipe clamp, 5. working status indicator light, 6. antenna, 7. spare hanging ring, 8. control panel. DETAILED DESCRIPTION
[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0016] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, in the description of this specification, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0017] Urokinase is a thrombolytic drug, the main component of which is urokinase, an enzyme that can activate plasminogen isolated from healthy human urine or obtained from human kidney tissue culture. It is a mixture of high molecular weight urokinase (Mw54000) and low molecular weight urokinase (Mw33000). It is mainly used for thrombolytic treatment of thromboembolic diseases and prevention of thrombus formation after artificial heart valve surgery. Among them, the treatment of lower limb artery stenosis caused by thrombus blocking blood vessels usually requires dripping of urokinase prepared with normal saline (concentration 2500 units / ml), and then injecting the drug solution through the catheter at a rate of 4000 units / min, and then gradually adjusting the drip rate to 1000 units / min until the blood clot dissolves. During this period, the catheter needs to be clamped once every half an hour or 2 hours, and the continuous thrombolysis time is extremely long; the current control is mainly manually controlled by doctors or nurses, which will occupy medical staff and due to the long thrombolysis process, medical staff need to control it at regular times and fixed points, resulting in serious waste of manpower.
[0018] The following describes an automatic urokinase injection device for treating lower extremity arterial stenosis according to an embodiment of the utility model with reference to the accompanying drawings.
[0019] In the specific implementation mode 1 of the present application, Figure 1 and Figure 3 As shown, the automatic urokinase injection device for lower limb artery stenosis (hereinafter referred to as "this patent") drives the driving shaft 3-1 by controlling the stepper motor built into the driving main unit 1 through the controller in the driving main unit 1, and the driving shaft 3-1 drives the squeezing roller driving arm 3-2, so that the squeezing roller 3-3 squeezes the pipeline placed on the squeezing ring 3-5. When the squeezing roller 3-3 squeezes along the pipeline on the squeezing ring 3-5, the pipeline forms a closed space that moves with the squeezing roller 3-3. As the squeezing roller 3-3 moves, the medicine in the closed space of the pipeline begins to flow. The controller in the driving main unit 1 can drive the stepper motor to rotate according to a preset program, calculate the amount of liquid medicine to be injected according to the preset pipe diameter information and the moving distance of the squeezing roller 3-3, and finally complete the injection, wherein the urokinase injection controller housing 3-4 and the urokinase injection controller front cover 3-6 will clamp the squeezing ring 3-5 to prevent the pipeline from moving. At the same time, in order to make the use of this patent more convenient, the controller in the driving host 1 is connected to the computer at the nurse station through the antenna 6, so that medical staff can understand the working status of the equipment more intuitively, and it is convenient for medical staff to remotely adjust the dosage of medicine in combination with the data sent back by other medical devices.
[0020] The utility model number is CN214857188U, which is an intelligent push injection device for PICC catheter thrombolysis (hereinafter referred to as "this patent"). This patent mainly provides liquid medicine to the catheter through a syringe. The catheter itself has a small capacity and needs to be replaced frequently during use. At the same time, the large number of sensors itself will also push up the production cost, and a large number of parts are in direct contact with the liquid medicine. Whether it is cleaned or abandoned later, it will further push up the cost of use, thereby affecting the promotion of the equipment. This patent can effectively reduce the pressure of medical staff by driving the built-in controller of the host 1 to control the stepper motor to rotate as needed, so that the liquid medicine can gradually and orderly enter the patient's body under the control of the squeezing roller 3-3. Since there is no part in contact with the liquid medicine, it can be reused after simple disinfection, so the cost of use can be effectively controlled, the cost of use for patients can be reduced, and it is convenient for large-scale promotion.
[0021] The second embodiment is based on the first embodiment, and the other structures are the same, the only difference is that Figure 2 As shown, a rectangular window is opened at the rear of the driving host 1 to install a control panel 8, and the control panel 8 can further display information such as the injection amount, injection time, and number of injections, so as to provide reference information for subsequent operations of medical staff.
[0022] In order to further optimize the working efficiency of this application and to prevent the dripping pipeline from bearing the weight of this patent, the top of the driving host 1 is fixed with a hanging ring 7 by screws. In order to better squeeze the pipeline and control the flow rate of the liquid medicine, the surface of the squeezing roller 3-3 is provided with soft rubber. In order to further cooperate with the squeezing roller 3-3, soft rubber is laid on the inner side of the squeezing ring 3-5.
[0023] When in use, the urokinase automatic injection device suitable for lower limb artery stenosis is installed and charged, then the liquid medicine input parameters are set, and the drip tube is placed in the upper tube clamp 2, the urokinase injection controller 3 and the lower tube clamp 4, and the device can start running.
[0024] When the utility model is in use, the specific operations are as follows:
[0025] When the utility model is installed, the front cover 3-6 of the urokinase injection controller is first opened. Since the upper pipe hoop 2 and the lower pipe hoop 4 that are opened in half are half mounted on the urokinase injection controller housing 3-4, and the other half are mounted on the front cover 3-6 of the urokinase injection controller, the upper pipe hoop 2 and the lower pipe hoop 4 will also be unfolded after the front cover 3-6 of the urokinase injection controller is opened. The medical staff puts the drip pipeline into the upper pipe hoop 2, and then pushes the squeezing roller driving arm 3-2 clockwise to drive the squeezing roller 3-3 forward while laying the pipeline on the inner side of the squeezing ring 3-5. The latter squeezing roller driving arm 3-2 will drive the next squeezing roller 3-3 to press the already laid pipeline under the drive of the driving shaft 3-1. Finally, the pipeline is placed in the lower pipe hoop 4, and the front cover 3-6 of the urokinase injection controller is closed, and the equipment can be put into use. During use, the infusion parameters are set for the controller built into the driving host 1 through the control panel 8 or the remote computer, and the stepper motor built into the driving host 1 can drive the driving shaft 3-1 in the urokinase injection controller 3, and the driving shaft 3-1 drives the squeezing roller driving arm 3-2, and the squeezing roller driving arm 3-2 causes the squeezing roller 3-3 to roll over the pipeline on the squeezing ring 3-5, and the compressed pipeline forms a closure, which drives the medicine in the pipeline to move forward when the squeezing roller 3-3 rolls over, and is finally injected into the patient's body. The driving motor in the driving host 1 is controlled to reach a speed of 4000 units / min to inject the medicine through the catheter, and then gradually adjusted to a dripping speed of 1000 units / min, and the catheter is clamped once every half an hour or 2 hours to meet the injection requirement.
[0026] In summary, the automatic urokinase injection device for lower limb artery stenosis of the utility model embodiment can accurately control the injection of urokinase by squeezing the catheter inside the squeezing ring 3-5 through the squeezing roller 3-3, and pressing the drug in the catheter into the patient's body. By driving the built-in controller of the host 1 to control the stepper motor to rotate as needed, the pressure of medical staff can be effectively reduced, and the drug solution can be gradually and orderly entered into the patient's body under the control of the squeezing roller 3-3. Since no parts of the whole body contact the drug solution, it only needs simple disinfection to be reused, so the use cost can be effectively controlled.
[0027] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0030] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. An automatic urokinase injection device for lower extremity arterial stenosis, comprising a driving host (1), a working status indicator light (5), an antenna (6), a standby ring (7) and a control panel (8), characterized in that: The front of the driving main unit (1) is fixedly mounted with a cylindrical urokinase injection controller (3); an upper pipe hoop (2) and a lower pipe hoop (4) pass through the side of the urokinase injection controller (3), and the upper pipe hoop (2) and the lower pipe hoop (4) are located on the same axis; a working status indicator light (5) is fixedly mounted on the front of the driving main unit (1); and an antenna (6) is fixedly mounted on the side of the driving main unit (1); the urokinase injection controller (3) further comprises a driving shaft (3-1), a squeezing roller driving arm (3-2), a squeezing roller (3-3), a urokinase injection controller housing (3-4), a squeezing ring (3-5) and a urokinase injection controller front cover (3-6); The urokinase injection controller front cover (3-6) is installed into the controller housing (3-4) by folding and snapping, the extrusion ring (3-5) is installed on the inner side of the urokinase injection controller housing (3-4), the driving shaft (3-1) is installed at the origin of the circular urokinase injection controller housing (3-4), the extrusion roller driving arms (3-2) are installed at equal intervals on the sides of the driving shaft (3-1), the end of the extrusion roller driving arms (3-2) is connected to the extrusion roller (3-3) through a rotating shaft, and the extrusion roller (3-3) rolls on the surface of the extrusion ring (3-5); the stepping motor built into the driving host (1) drives the driving shaft (3-1), and the driving host (1) has a built-in battery pack and a controller.
2. The urokinase automatic injection device suitable for lower extremity arterial stenosis according to claim 1, characterized in that: A rectangular window is provided at the rear of the driving main unit (1) to mount a control panel (8).
3. The automatic urokinase injection device for lower extremity arterial stenosis according to claim 2, characterized in that: The top of the driving main unit (1) is fixed with a hanging ring (7) by means of screws.
4. The automatic urokinase injection device for lower extremity arterial stenosis according to claim 1, characterized in that: The surface of the squeezing roller (3-3) is provided with soft rubber.
5. The automatic urokinase injection device for lower extremity arterial stenosis according to claim 4, characterized in that: The inner side of the extrusion ring (3-5) is paved with soft rubber.