Length-adjustable tourniquet for nursing teaching
By integrating a miniature pressure sensor and light display module into the compression band, the problem of lack of pressure feedback for medical students during practice is solved, enabling real-time pressure feedback and accurate pressure judgment, thus improving teaching effectiveness.
Patent Information
- Application Number
- CN202423119259.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Medical students lack an intuitive pressure feedback mechanism when practicing the use of a tourniquet, which increases the difficulty of teaching and leads to inaccurate skill mastery.
An adjustable-length pressure cuff for nursing education has been designed, which incorporates a miniature pressure sensor and a light display module. The sensor detects the pressure and the light provides feedback to help students determine whether the pressure is appropriate.
It provides instant stress feedback, helping students accurately grasp the appropriate stress range, thereby improving learning outcomes and the accuracy of skill mastery.
Smart Images
Figure CN223787660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical teaching equipment technology, and in particular to a pressure bandage for nursing teaching with adjustable length. Background Technology
[0002] A tourniquet, also known as a blood pressure cuff, is a common auxiliary tool in the medical setting. It is primarily used to temporarily block venous return in the distal extremities during procedures such as intravenous injections and blood draws, allowing for clearer observation and palpation of blood vessels. Traditional tourniquets are typically made of elastic materials such as rubber or latex, while modern products may use thermoplastic elastomers (TPEs) or other synthetic fibers to avoid allergic reactions and provide better durability and comfort.
[0003] In practical applications, the correct use of a tourniquet is crucial for ensuring the safety and effectiveness of medical procedures. Inappropriate tourniquet pressure can lead to a series of problems: too low pressure will fail to effectively block venous return, affecting the success rate of the procedure; while too high pressure may cause patient discomfort or even complications such as nerve damage or tissue ischemia. Therefore, it is extremely important for medical students to master the correct method of tourniquet use during their studies and practice.
[0004] However, in the existing training system, medical students face certain challenges when practicing the use of tourniquets. Due to the lack of intuitive pressure feedback mechanisms, students can only rely on the experience of their instructors and their own intuition to judge the tightness of the tourniquet. This approach not only increases the difficulty of teaching but also makes it difficult to ensure that every student accurately grasps the appropriate pressure range. Especially in simulated training environments, the lack of precise pressure measurement tools makes it difficult for students to obtain immediate feedback, thus affecting learning outcomes and the accuracy of skill mastery. Utility Model Content
[0005] The purpose of this invention is to provide a nursing teaching cuff with adjustable length, which can provide corresponding measurement feedback when students practice using the cuff, so that students can more accurately grasp the appropriate pressure range.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] An adjustable-length nursing teaching compression band includes a housing, the housing being divided into a storage cavity and a battery cavity. An outwardly extending port communicating with the storage cavity is provided on the outer side of the housing. A winding shaft perpendicular to the battery cavity is rotatably connected inside the storage cavity. A battery and an integrated circuit board are disposed inside the battery cavity. A knob is provided on the end of the winding cover that extends outward from the battery cavity. A hollow, elastic compression band is wound around the winding shaft, and the free end of the elastic compression band extends out from the extension port.
[0008] A miniature pressure sensor is disposed in the middle of the elastic pressure band. The miniature pressure sensor is connected to a cable arranged in a serpentine pattern within the elastic pressure band in the direction of the winding shaft. The miniature pressure sensor is electrically connected to the integrated circuit board through the cable. An elastic limiting strip is disposed within the elastic pressure band. Both ends of the elastic limiting strip are connected to the inner wall of the elastic pressure band. The elastic limiting strip is connected to the middle of each bend of the cable. A light display module electrically connected to the integrated circuit board is disposed outside the housing.
[0009] By adopting the above technical solution, when practicing the use of the pressure band, the knob is turned according to the usage requirements to release the elastic pressure band from the winding shaft and release it to the required length from the telescopic port. During practice, the pressure band is stretched and tied to the model arm. At this time, the pressure band is stretched, and the elastic limiting strip is also stretched. Pulling the serpentine cable unfolds to adapt to the length of the elastic pressure band at this time. At this time, the miniature pressure sensor detects the pressure applied by the pressure band to the model arm and transmits it to the integrated circuit board. The light display module controls the light feedback according to the pressure to allow students to judge whether the pressure is appropriate, so as to facilitate future practice based on this pressure.
[0010] A further feature of this invention is that: one end of the housing is provided with a limiting ring that is slidably connected to the knob near the winding shaft; the limiting ring has a plurality of circumferentially distributed limiting holes on the side facing the knob; and the knob has a limiting protrusion that cooperates with the limiting holes on the side facing the limiting ring.
[0011] A further feature of this invention is that an electric slip ring is provided inside the battery cavity and is rotatably connected to the winding shaft; the cable is electrically connected to the electric slip ring through the winding shaft; and the electric slip ring is electrically connected to the integrated circuit board.
[0012] A further feature of this invention is that the miniature pressure sensor is a MEMS pressure sensor.
[0013] In summary, this utility model has the following beneficial effects:
[0014] Firstly, during practice, the pressure bandage of this invention can detect the pressure in real time through a miniature pressure sensor and provide corresponding light feedback to help students judge whether the pressure of the pressure bandage is appropriate, which helps students quickly master the use pressure of the pressure bandage.
[0015] Secondly, the length of the pressure bandage of this utility model can be freely adjusted according to the needs of use, making it convenient for students to practice using the pressure bandage as needed. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 Primarily used to display the retaining ring on the outside of the housing;
[0018] Figure 3 It is a partial sectional view used to show the internal structure of the shell;
[0019] Figure 4 Used to display the limit protrusion on the knob;
[0020] Figure 5 It is a partial cross-sectional view used to show the internal structure of the elastic pressure band.
[0021] In the diagram: 1. Housing; 11. Storage cavity; 12. Battery cavity; 13. Telescopic port; 14. Limiting ring; 15. Limiting hole; 2. Winding shaft; 21. Knob; 22. Limiting protrusion; 31. Battery; 32. Integrated circuit board; 33. Slip ring; 4. Elastic pressure band; 5. Miniature pressure sensor; 6. Cable; 7. Elastic limiting strip; 8. Light display module. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] Example, refer to Figure 1-5 An adjustable-length nursing teaching compression band includes a housing 1, which is divided into a storage cavity 11 and a battery cavity 12. A telescopic port 13 communicating with the storage cavity 11 is provided on the outer side of the housing 1. A winding shaft 2 perpendicular to the battery cavity 12 is rotatably connected inside the storage cavity 11. A battery 31 and an integrated circuit board 32 are installed inside the battery cavity 12. An electric slip ring 33 is installed inside the battery cavity 12 and is rotatably connected to the winding shaft 2. The electric slip ring 33 is electrically connected to the integrated circuit board 32. A knob 21 is installed on the end of the winding cover that extends outward from the battery cavity 12 and is located on the housing 1. A limiting ring 14 is installed on one end of the housing 1 and is slidably connected to the side of the knob 21 near the winding shaft 2. The limiting ring 14 has multiple circumferentially distributed limiting holes 15 on the side facing the knob 21. The knob 21 has two limiting protrusions 22 that cooperate with the limiting holes 15 on the side facing the limiting ring 14. When the limiting protrusions 22 are connected to the limiting holes 15, the winding shaft 2 cannot rotate when no external force is applied. The winding shaft 2 can only be rotated by forcefully turning the knob 21.
[0027] A hollow elastic pressure band 4 is wound around the winding shaft 2. The free end of the elastic pressure band 4 extends from the telescopic port 13. A miniature pressure sensor 5 is installed in the middle of the elastic pressure band 4. The miniature pressure sensor 5 is a miniature MEMS pressure sensor used to sense the pressure applied by the pressure band. A cable 6, which is arranged in a serpentine pattern inside the elastic pressure band 4, is connected to the miniature pressure sensor 5 towards the winding shaft 2. The cable 6 is electrically connected to the slip ring 33 through the winding shaft 2, so that the miniature pressure sensor 5 is ultimately electrically connected to the integrated circuit board 32, thus transmitting the pressure data to the integrated circuit board 32. An elastic limiting strip 7 is provided inside the elastic pressure band 4. Both ends of the elastic limiting strip 7 are connected to the inner wall of the elastic pressure band 4. The elastic limiting strip 7 is connected to the middle of each bending section of the cable 6. The elastic limiting strip 7 extends and retracts synchronously with the elastic pressure band 4. The extension and retraction of the elastic limiting strip 7 pulls the serpentine cable 6 to unfold or compress within the elastic pressure band 4. A light display module 8 electrically connected to the integrated circuit board 32 is provided outside the housing 1. The light display module 8 is located above the telescopic port 13. When the pressure is low, it displays green light; when the pressure is high, it displays red light; and when the pressure is moderate, it displays yellow light.
[0028] Working principle: When practicing the use of the pressure band, turn knob 21 according to the usage requirements to release the elastic pressure band 4 from the winding shaft 2 and release it to the required length from the telescopic port 13. During practice, stretch the pressure band and tie it to the model arm. At this time, the pressure band is stretched, and the elastic limiting strip 7 is also stretched. Pull the serpentine cable 6 to stretch it to adapt to the length of the elastic pressure band 4. At this time, the miniature pressure sensor 5 detects the pressure applied by the pressure band to the model arm and transmits it to the integrated circuit board 32. The light display module 8 controls the light to provide corresponding light feedback according to the pressure, so that students can judge whether the pressure is appropriate and facilitate future practice based on this pressure.
[0029] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A nursing teaching compression band with adjustable length, comprising a housing (1), characterized in that: The housing (1) is divided into a storage cavity (11) and a battery cavity (12). A telescopic port (13) communicating with the storage cavity (11) is provided on the outer side of the housing (1). A winding shaft (2) perpendicular to the battery cavity (12) is rotatably connected inside the storage cavity (11). A battery (31) and an integrated circuit board (32) are provided inside the battery cavity (12). A knob (21) is provided on the housing (1) at the end of the winding shaft away from the battery cavity (12). A hollow elastic pressure band (4) is wound on the winding shaft (2). The free end of the elastic pressure band (4) extends out from the telescopic port (13). A miniature pressure sensor (5) is provided in the middle of the elastic pressure band (4). The miniature pressure sensor (5) is connected to a cable (6) arranged in a serpentine pattern inside the elastic pressure band (4) in the direction of the winding shaft (2). The miniature pressure sensor (5) is electrically connected to the integrated circuit board (32) through the cable (6). An elastic limiting strip (7) is provided inside the elastic pressure band (4). Both ends of the elastic limiting strip (7) are connected to the inner wall of the elastic pressure band (4). The elastic limiting strip (7) is connected to the middle of each bending segment of the cable (6). A light display module (8) electrically connected to the integrated circuit board (32) is provided outside the housing (1).
2. The adjustable-length nursing teaching tourniquet according to claim 1, characterized in that: One end of the housing (1) is provided with a limiting ring (14) that is slidably connected to the knob (21) near the winding shaft (2). The limiting ring (14) has a plurality of circumferentially distributed limiting holes (15) on the side facing the knob (21). The knob (21) has a limiting protrusion (22) that cooperates with the limiting holes (15) on the side facing the limiting ring (14).
3. The adjustable-length nursing teaching tourniquet according to claim 1, characterized in that: An electric slip ring (33) is provided in the battery cavity (12) and is rotatably connected to the winding shaft (2). The cable (6) is electrically connected to the electric slip ring (33) through the winding shaft (2). The electric slip ring (33) is electrically connected to the integrated circuit board (32).
4. The adjustable-length nursing teaching tourniquet according to claim 1, characterized in that: The micro pressure sensor (5) is a MEMS pressure sensor.