Drainage device
By setting a displacement block and a high-sensitive drop speed sensor on the drainage device, precise control of the flow rate and height of the drainage liquid is achieved, and the problems of insufficient or excessive drainage in the prior art are solved, and the safety and efficiency of the drainage operation are improved.
Patent Information
- Application Number
- CN202421199163.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Existing drainage devices are difficult to accurately control the flow rate and height of the drainage liquid, which can easily lead to insufficient or excessive drainage, threatening the life safety of patients.
A drainage device is designed, by setting a displacement block on the main body of the drainage device to drive the liquid outlet of the catheter to move up and down, and combining with a high-sensitive drip speed sensor to detect and control the drip speed of the liquid to ensure the safety and effectiveness of the drainage process.
By precisely controlling the discharge speed and height of drainage liquid, the efficiency and safety of drainage operations are improved, the occurrence of human errors is reduced, and the safety and comfort of patients are ensured.
Smart Images

Figure CN222930102U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a drainage device. Background Art
[0002] After most neurosurgeries, continuous drainage is required to drain the body fluids, exudates, blood, and cerebrospinal fluid in the cranial surgical area, which is beneficial to the patient's recovery. The drainage bottle needs to be hung at a height that is appropriate to the patient's condition and intracranial pressure. It must be slightly higher than the patient's head height to keep the intracranial pressure within an appropriate range. If the medical staff does not hang the height correctly, or does not adjust the drainage bottle hanging height in time when the condition changes, it will lead to insufficient drainage or excessive drainage, which may endanger the patient's life in severe cases. When cerebrospinal fluid is drained in the early postoperative period, blood will drain out at first. Once coagulation occurs, it will cause poor drainage or blockage, which can easily cause secondary damage to the patient. At the same time, the drainage speed needs to be controlled. The drainage fluid drained out of the body every day must be less than 500 ml, and electrolytes need to be replenished in time. If the drainage is too fast and too much, low intracranial pressure headaches, nausea, vomiting, etc. are likely to occur.
[0003] The drainage bottles currently used in clinical practice require medical staff to adjust the drainage bottles to reach the required height based on clinical experience. The adjustment is inconvenient and it is difficult to control the flow rate of the drainage fluid, which is not conducive to postoperative drainage of patients. It is easy to cause brain hernia or intracranial hypotension syndrome in patients due to insufficient or excessive drainage, threatening the patient's life safety. Utility Model Content
[0004] The utility model aims at the deficiencies in the prior art and provides a drainage device, the scheme of which is as follows:
[0005] A drainage device comprises: a drainage device body, and a catheter, a displacement block, a dripping rate sensor and a drainage component connected to the catheter, which are sequentially arranged on the drainage device body, wherein one end of the catheter close to the drainage component is provided with a liquid outlet, and the other end of the catheter is provided with a liquid inlet; the displacement block is slidably connected to the drainage device body, and the drainage component is connected to the displacement block, so that the displacement block can realize up and down movement on the drainage device body, thereby driving the liquid outlet of the catheter to move up and down on the drainage device body; there is a gap between the dripping rate sensor and the liquid outlet, and the spacing of the gap is less than 1 cm, and the dripping rate sensor is connected to the displacement block or the drainage component to detect the liquid dripping rate of the liquid outlet of the catheter.
[0006] In a specific embodiment, it further comprises a support plate, on which a sliding groove matching the displacement block is formed, and the displacement block is movably connected to the support plate via the sliding groove.
[0007] In a specific embodiment, a scale is provided on the support plate along the sliding groove, and the scale is used to measure the height of the displacement block moving up and down relative to the main body of the drainage device.
[0008] In a specific embodiment, the drainage assembly includes a drainage tank and a drainage tube. One end of the drainage tank is connected to the catheter, and the other end is connected to the drainage tube. A transparent part is provided at the part where the drainage tank is connected to the drip rate sensor.
[0009] In a specific embodiment, a groove matching the shape of the drainage tank is formed on the drip rate sensor, and the drainage tank is embedded in the groove and connected to the displacement block.
[0010] In a specific embodiment, the displacement block further includes a tightening part for fastening, so that the displacement block is fixed relative to the main body of the drainage device after completing the up and down movement on the main body of the drainage device.
[0011] In a specific embodiment, a display is further included. The display is communicatively connected to the drip rate sensor and is used to display the liquid drip rate at the liquid outlet of the catheter detected by the drip rate sensor.
[0012] In a specific embodiment, a slider matching the sliding groove is provided on the displacement block, and the displacement block is slidably connected to the sliding groove through the slider.
[0013] In a specific embodiment, a collecting device is connected to one end of the drainage assembly away from the catheter, so as to transport the body fluid in the catheter to the collecting device through the drainage assembly;
[0014] A transparent part is provided on the outer surface of the collecting device, and scale lines are provided on the transparent part.
[0015] In a specific embodiment, the drip rate sensor includes a mounting bracket detachably connected to the main body of the drainage device and an infrared sensor provided on the mounting bracket.
[0016] Beneficial effects: By providing a displacement block on the drainage device to drive the liquid outlet of the catheter for drainage to move up and down relative to the main body of the drainage device, the present invention controls the discharge speed of the drained liquid, and a highly sensitive drip rate sensor is provided at the liquid outlet of the catheter, and the gap between the drip rate sensor and the liquid outlet is controlled within 1 centimeter, so as to accurately detect the liquid drip rate and minimize errors as much as possible. It can improve the efficiency and safety of the drainage operation, reduce the occurrence of human errors, thus ensuring the safety and comfort of patients to the greatest extent, and increasing the convenience and accuracy of the operation. Description of the Drawings
[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show certain embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.
[0018] Figure 1 Schematic three-dimensional structure diagram of the present utility model;
[0019] Figure 2 Schematic structure diagram of the catheter of the present utility model;
[0020] Figure 3 Schematic structure diagram of the drainage assembly of the present utility model;
[0021] Figure 4 Schematic structure diagram of the displacement block of the present utility model.
[0022] The reference numerals are as follows: 1 - main body of the drainage device; 2 - catheter; 21 - liquid inlet; 22 - liquid outlet; 3 - displacement block; 4 - drip speed sensor; 5 - drainage assembly; 51 - drainage tank; 52 - drainage tube; 6 - support plate; 7 - sliding groove; 8 - scale; 9 - groove; 10 - tightening part; 11 - display; 12 - collection device; 13 - graduation line. Specific embodiments
[0023] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the attached drawings, so as to fully understand the purpose, features and effects of the present utility model.
[0024] Hereinafter, various embodiments of the present utility model will be described more comprehensively. The present utility model can have various embodiments, and adjustments and changes can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present utility model to the specific embodiments disclosed herein, but the present utility model should be understood to cover all adjustments, equivalents and / or alternative solutions falling within the spirit and scope of the various embodiments of the present utility model.
[0025] Hereinafter, the term "comprising" or "may comprise" that can be used in various embodiments of the present utility model indicates the presence of the disclosed functions, operations or elements, and does not limit the addition of one or more functions, operations or elements. Further, as used in various embodiments of the present utility model, the terms "comprising", "having" and their cognates are only intended to represent specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be construed as precluding the existence or addition of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items first.
[0026] In various embodiments of the present utility model, the expression "or" or "at least one of A or / and B" includes any combination or all combinations of the recited words. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.
[0027] Expressions (such as "first", "second", etc.) used in various embodiments of the present utility model may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only for the purpose of distinguishing one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of various embodiments of the present utility model, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.
[0028] It should be noted that in the present utility model, unless otherwise clearly defined, terms such as "install", "connect", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium; it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0029] In the present utility model, those of ordinary skill in the art need to understand that the terms indicating the orientation or positional relationship in the text are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 to the present utility model.
[0030] The terms used in the various embodiments of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present utility model. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the various embodiments of the present utility model belong. The terms (such as those defined in a commonly used dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present utility model.
[0031] Embodiment 1
[0032] In this embodiment, a displacement block is arranged on the drainage device to drive the liquid outlet of the catheter for drainage to move up and down relative to the main body of the drainage device, thereby controlling the drainage speed of the drained liquid. A highly sensitive drip rate sensor is arranged at the liquid outlet of the catheter, and the gap between the drip rate sensor and the liquid outlet is controlled within 1 centimeter, so as to accurately detect the liquid drip rate and minimize the error as much as possible. This can improve the efficiency and safety of the drainage operation, reduce the occurrence of human errors, thus ensuring the safety and comfort of the patient to the greatest extent, and increasing the convenience and accuracy of the operation.
[0033] A drainage device includes: a main body 1 of the drainage device, and a catheter 2, a displacement block 3, a drip rate sensor 4, and a drainage assembly 5 sequentially arranged on the main body 1 of the drainage device. An outlet 22 is provided at one end of the catheter 2 close to the drainage assembly 5, and an inlet 21 is provided at the other end of the catheter 2. The displacement block 3 is slidably connected to the main body 1 of the drainage device, and the drainage assembly 5 is connected to the displacement block 3 to realize up and down movement on the main body 1 of the drainage device through the displacement block 3, thereby driving the outlet 22 of the catheter 2 to move up and down on the main body 1 of the drainage device. There is a gap between the drip rate sensor 4 and the outlet 22, and the distance of the gap is less than 1 centimeter. The drip rate sensor 4 is connected to the displacement block 3 or the drainage assembly 5 to detect the liquid drip rate of the outlet 22 of the catheter 2.
[0034] This embodiment provides a drainage device, as shown in the attached Figure 1 figure, comprising a main body 1 of the drainage device and a catheter 2, a displacement block 3, a drip rate sensor 4, and a drainage assembly 5 sequentially arranged thereon. The catheter 2 is a key part in the drainage process, as shown in the attached Figure 2As shown, one end is connected to the drainage component 5, and the other end is the liquid inlet 21. During use, the catheter 2 is inserted into the patient's skull through the liquid inlet 21 end to drain body fluids, exudates, blood, cerebrospinal fluid, etc. in the craniotomy area. The end of the catheter 2 near the drainage component 5 has a liquid outlet 22, through which the drained liquid can be smoothly discharged. The displacement block 3 is another important component of the drainage device in this embodiment. It can slide freely on the main body 1 of the drainage device and is connected to the drainage component 5. When the displacement block 3 moves on the main body 1 of the drainage device, it drives the liquid outlet 22 of the catheter 2 to move up and down together, thereby controlling the discharge speed of the drained liquid. The higher the height at which the displacement block 3 drives the liquid outlet 22 to move, the slower the discharge speed of the drained liquid; the lower the height at which the displacement block 3 drives the liquid outlet 22 to move, the faster the discharge speed of the drained liquid. The drip rate sensor 4 is located near the liquid outlet 22 and there is a gap of less than 1 centimeter between it and the liquid outlet 22. Specifically, there is a height difference in the vertical height between the drip rate sensor 4 and the liquid outlet 22. The purpose of this design is to enable the drip rate sensor 4 to accurately detect the liquid drip rate in order to timely adjust the working state of the drainage device. The drip rate sensor 4 is connected to the displacement block 3 or the drainage component 5, and by real-time monitoring of the liquid drip rate at the liquid outlet 22, it ensures the precise control and efficient operation of the drainage process.
[0035] In a specific embodiment, it further includes a support plate 6. The support plate 6 is provided with a sliding groove 7 that matches the displacement block 3, and the displacement block 3 is movably connected to the support plate 6 through the sliding groove 7.
[0036] In this embodiment, the design of the drainage device is further improved by introducing the support plate 6. The presence of the support plate 6 enhances the stability and reliability of the device, provides additional support and structural integrity. The support plate 6 is designed with a sliding groove 7 that matches the shape of the displacement block 3, enabling the displacement block 3 to form a movable connection with the support plate 6. This design not only makes the sliding of the displacement block 3 on the main body 1 of the drainage device smoother, but also improves the durability and operability of the device. Through the combination of the support plate 6 and the sliding groove 7, the drainage device can better adapt to different working environments and requirements during actual use, ensuring the stability and continuity of the drainage process.
[0037] In a specific embodiment, a scale 8 is provided along the sliding groove 7 on the support plate 6, and the scale 8 is used to measure the height of the displacement block 3 moving up and down relative to the main body 1 of the drainage device.
[0038] In this embodiment, further, a scale 8 is provided on the support plate 6 along the sliding groove 7. The design of this scale 8 is to facilitate the measurement of the height of the displacement block 3 moving up and down relative to the main body 1 of the drainage device. Such a design enables the operator to quickly and accurately determine the position of the displacement block 3, and then adjust the height of the liquid outlet 22 to meet specific requirements. The setting of the scale 8 not only improves the convenience of operation, but also enhances the accuracy and efficiency of the work.
[0039] In a specific embodiment, the drainage assembly 5 includes a drainage tank 51 and a drainage pipe 52. One end of the drainage tank 51 is connected to the conduit 2, and the other end is connected to the drainage pipe 52. And a transparent part is provided at the part where the drainage tank 51 is connected to the drip rate sensor 4.
[0040] In this embodiment, as shown in the appendix Figure 3 As shown, the drainage assembly 5 includes two parts: a drainage tank 51 and a drainage pipe 52. The drainage tank 51 is an important component. It is connected to the conduit 2 and conveys the drained liquid to the drainage pipe 52. The connection between the drainage tank 51 and the drainage pipe 52 is tight and reliable, ensuring the smooth flow of the liquid during the drainage process. A transparent part is provided at the part where the drainage tank 51 is connected to the drip rate sensor 4, enabling the drip rate sensor 4 to accurately measure the discharge rate of the drained liquid. At the same time, it is also convenient for the operator to clearly observe the flow of the liquid in the drainage tank, so as to timely adjust the working state of the drainage device. The setting of the transparent part not only improves the convenience of operation, but also increases the visibility and monitorability of the device, providing strong support for the precise control of the drainage process.
[0041] In a specific embodiment, a groove 9 matching the shape of the drainage tank 51 is provided on the drip rate sensor 4, and the drainage tank 51 is embedded in the groove 9 and connected to the displacement block 3.
[0042] In this embodiment, a groove 9 matching the shape of the drainage tank 51 is provided on the drip rate sensor 4. The existence of this groove provides reliable support for the fixation of the drainage tank. When the drainage tank 51 is embedded in the groove 9, it forms a tight connection with the displacement block 3, ensuring the stability and safety of the drainage tank during operation. This design not only makes the assembly of the drainage device simpler and faster, but also improves the stability and reliability of the device. Through the setting of the groove 9 on the drip rate sensor 4, the drainage device can better adapt to different environments and requirements during actual work, providing reliable guarantee for the smooth progress of the drainage process.
[0043] In a specific embodiment, the displacement block 3 further includes a tightening part 10 for tightening, so that the displacement block 3 is fixed relative to the main body 1 of the drainage device after completing the up and down movement on the main body 1 of the drainage device.
[0044] In this embodiment, as shown in the appendixFigure 4 As shown, the design of the displacement block 3 is more perfect. In addition to the function of adjusting the height, a tightening part 10 is added to play a fixing role. The function of this tightening part 10 is to ensure that the displacement block 3 can be fixed relative to the main body 1 of the drainage device after the displacement block 3 completes the up and down movement of the main body 1 of the drainage device. By adjusting the tightness of the tightening part 10, the operator can flexibly control the fixed state of the displacement block 3, so as to realize the precise adjustment and fixation of the drainage device. This design not only improves the stability and reliability of the drainage device, but also enhances the convenience and flexibility of operation, providing strong support for the smooth progress of the drainage work.
[0045] In a specific embodiment, it further includes a display 11, and the display 11 is communicatively connected to the drip rate sensor 4 for displaying the liquid drip rate of the liquid outlet 22 of the catheter 2 detected by the drip rate sensor 4.
[0046] In this embodiment, a display 11 is further introduced into the drainage device. The display 11 is communicatively connected to the drip rate sensor 4, and its main function is to display the liquid drip rate of the liquid outlet 22 of the catheter 2 detected by the drip rate sensor 4. Through this display 11, the operator can monitor the drip rate of the liquid outlet 22 of the catheter 2 in real time during the drainage process, timely understand the progress of the drainage and the liquid discharge situation, so as to effectively adjust the drainage device. The presence of the display 11 not only improves the intelligence level of the drainage device, but also increases the convenience and accuracy of operation. Medical staff can directly monitor the drip rate data without relying on other external devices or manual measurement. This real-time monitoring system can improve the efficiency and safety of the drainage operation, reduce the occurrence of human errors, and thus ensure the safety and comfort of patients to the greatest extent.
[0047] In a specific embodiment, a slider matching the sliding groove 7 is provided on the displacement block 3, and the displacement block 3 is slidably connected to the sliding groove 7 through the slider.
[0048] In this embodiment, a slider matching the sliding groove 7 is further provided on the displacement block 3. The presence of this slider enables the displacement block 3 to achieve smooth movement relative to the main body 1 of the drainage device through the sliding connection with the sliding groove 7. When the displacement block 3 needs to adjust the height, the slider can smoothly move in the sliding groove 7 to ensure that the movement track of the displacement block 3 is stable and controllable. This design not only increases the stability and reliability of the displacement block 3, but also improves the convenience and precision of operation. Through the sliding connection between the slider and the sliding groove, the displacement block 3 can achieve smooth up and down movement during the operation of the drainage device, providing more reliable and effective support for the drainage operation.
[0049] In a specific embodiment, a collecting device 12 is connected to one end of the drainage component 5 away from the catheter 2, so as to transport the body fluid in the catheter 2 to the collecting device 12 through the drainage component 5;
[0050] A transparent part is provided on the outer surface of the collecting device 12, and scale lines 13 are provided on the transparent part.
[0051] In this embodiment, based on actual needs, a dedicated collecting device 12 is also connected to one end of the drainage component 5 away from the catheter 2. Through the drainage component 5, the body fluid in the catheter 2 can be smoothly transported to the collecting device 12, realizing the effective collection and treatment of the body fluid. This design makes the drainage process more efficient and convenient, and at the same time reduces the workload and time cost of the operator.
[0052] Scale lines 13 are engraved on the outer surface of the collecting device 12. Such a design enables the operator to clearly observe the liquid level inside the collecting device 12, and the scale lines 13 provide accurate measurement of the liquid level.
[0053] In a specific embodiment, the drip rate sensor 4 includes a mounting bracket detachably connected to the main body 1 of the drainage device, and an infrared sensor provided on the mounting bracket.
[0054] In this embodiment, the drip rate sensor 4 includes a dedicated mounting bracket detachably connected to the main body 1 of the drainage device, and a group of highly sensitive infrared sensors provided on the mounting bracket.
[0055] The design of the mounting bracket enables the drip rate sensor 4 to be easily and safely connected to and separated from the main body 1 of the drainage device. This detachable connection design not only simplifies the assembly and maintenance process of the device, but also increases the flexibility and operability of the equipment, making the drip rate sensor 4 easier to be replaced or upgraded. The infrared sensor can accurately monitor the frequency and speed of the liquid dripping from the liquid outlet 22 of the catheter 2. Through the accurate measurement of the infrared sensor, the drip rate sensor 4 can accurately capture the situation of the body fluid dripping in real time, so as to provide key drainage data to the operator.
[0056] The utility model controls the discharge speed of the drained liquid by setting a displacement block on the drainage device to drive the liquid outlet of the catheter for drainage to move up and down relative to the main body of the drainage device, and a highly sensitive drip rate sensor is provided at the liquid outlet of the catheter, and the gap between the drip rate sensor and the liquid outlet is controlled within 1 centimeter, so as to accurately detect the liquid drip rate and minimize the error as much as possible, which can improve the efficiency and safety of the drainage operation, reduce the occurrence of human errors, thus ensuring the safety and comfort of the patient to the greatest extent, and increasing the convenience and accuracy of the operation.
[0057] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A drainage device, characterized in that: include: A drainage device body and a catheter, a displacement block, a dripping rate sensor and a drainage component connected to the catheter which are sequentially arranged on the drainage device body, wherein one end of the catheter close to the drainage component is provided with a liquid outlet, and the other end of the catheter is provided with a liquid inlet; the displacement block is slidably connected to the drainage device body, and the drainage component is connected to the displacement block, so that the displacement block can realize the up and down movement on the drainage device body, thereby driving the liquid outlet of the catheter to move up and down on the drainage device body; there is a gap between the dripping rate sensor and the liquid outlet, and the spacing of the gap is less than 1 cm. The dripping rate sensor is connected to the displacement block or the drainage component to detect the liquid dripping rate of the liquid outlet of the catheter.
2. A drainage device according to claim 1, characterized in that: It also includes a support plate, on which a sliding groove matching the displacement block is formed, and the displacement block is movably connected to the support plate via the sliding groove.
3. A drainage device according to claim 2, characterized in that: A ruler is provided on the support plate along the sliding groove, and the ruler is used to measure the height of the displacement block moving up and down relative to the drainage device body.
4. A drainage device according to claim 1, characterized in that: The drainage component comprises a drainage tank and a drainage tube, one end of the drainage tank is connected to the catheter, and the other end is connected to the drainage tube, and a transparent portion is provided at the portion where the drainage tank is connected to the dripping rate sensor.
5. A drainage device according to claim 4, characterized in that: The drip rate sensor is provided with a groove matching the shape of the drainage pot, and the drainage pot is embedded in the groove and connected to the displacement block.
6. A drainage device according to claim 1, characterized in that: The displacement block also includes an elastic part for tightening, so that the displacement block is fixed relative to the drainage device body after completing the up and down movement on the drainage device body.
7. A drainage device according to claim 1, characterized in that: The device also includes a display, which is communicatively connected with the dripping rate sensor and is used to display the liquid dripping rate at the liquid outlet of the catheter detected by the dripping rate sensor.
8. A drainage device according to claim 2, characterized in that: The displacement block is provided with a sliding block matching the sliding groove, and the displacement block is slidably connected with the sliding groove via the sliding block.
9. A drainage device according to claim 1, characterized in that: The end of the drainage component away from the catheter is connected to a collecting device, so that the body fluid in the catheter is transported to the collecting device through the drainage component; The outer surface of the collecting device is provided with a transparent portion, and scale lines are provided on the transparent portion.
10. A drainage device according to claim 1, characterized in that: The drip rate sensor comprises a mounting frame detachably connected to the drainage device body, and an infrared sensor arranged on the mounting frame.