Medical device

Abstract

Medical equipment comprises a body, the body is provided with a containing cavity, and the body comprises a front panel used for defining the front surface of the containing cavity and further comprises a side panel used for defining at least one side surface of the containing cavity; the circuit substrate is accommodated in the accommodating cavity and is provided with a light-emitting device; the light guide strip comprises a light inlet part and a light outlet part, the light inlet part is used for receiving light emitted by the light emitting device, the light outlet part is used for enabling the received light to be emitted out of the containing cavity, and the light outlet part is clamped between the front panel and the side panel; the positioning part is integrally formed on the light guide strip, and the light guide strip and the circuit substrate are jointly positioned on the body through the positioning part. According to the scheme of the invention, the alarm function of the medical equipment can be realized in a manner of lower assembly complexity and fewer parts.

Description

Technical Field

[0001] This disclosure relates to the field of medical device technology, and more specifically to a medical device. Background Technology

[0002] Medical equipment is widely used in medical workplaces to assist healthcare professionals in saving patients' lives and maintaining their health. Medical equipment is generally equipped with alarm functions to promptly alert healthcare professionals to any physiological abnormalities in patients, ensuring their safety.

[0003] For example, patient monitors are used to measure and control patients' physiological parameters such as blood pressure, heart rate, and blood gases, and compare them with known set values. If the measured physiological parameters exceed the set values, the monitor will issue an alarm to prompt medical staff to respond promptly. Another example is the ventilator, a medical device that artificially replaces the patient's spontaneous ventilation. It is widely used in respiratory failure caused by various reasons, anesthetic respiratory management during major surgery, respiratory support therapy, and emergency resuscitation. The ventilator will issue an alarm when it detects abnormalities in parameters such as the patient's oxygen flow rate, pressure limits, and respiratory rate, or when it detects phenomena such as asphyxiation during ventilation, to ensure the safety of the mechanical ventilation process.

[0004] Currently, medical devices generally implement alarm functions in the following way: LED beads are installed inside the medical device, and alarm light strips are installed on the exterior surface. When the medical device triggers an alarm, the LED beads are activated, and the light emitted by the LED beads is conducted to the outside of the medical device via the alarm light strip and becomes visible to the outside. Existing commercially available alarm light strips are made of thermoplastic transparent plastic, and the LED beads are pre-soldered onto a printed circuit board (PCB). Both the alarm light strip and the PCB require additional fasteners such as screws and specialized tools to install onto the medical device, making assembly cumbersome.

[0005] On the other hand, the alarm light strip needs to extend from inside the medical device all the way to the outside to guide the light from the LEDs to the device's exterior, inevitably creating a seam between the casing that forms the device's exterior and the alarm light strip. Medical devices generally require waterproofing, and current solutions involve placing a waterproof sealing ring around the alarm light strip. This results in a large number of components needed to implement the alarm function, which is inconvenient for material management. Furthermore, the solution based on the alarm light strip, PCB board, screws, and waterproof sealing ring has a complex structure and high installation costs. Utility Model Content

[0006] The technical problem solved by this disclosure is to provide an improved medical device.

[0007] To address the aforementioned technical problems, this disclosure provides a medical device comprising: a body having a receiving cavity, the body including a front panel defining a front surface of the receiving cavity, and a side panel defining at least one side surface of the receiving cavity; a circuit board housed in the receiving cavity and having a light-emitting device; a light guide strip including a light-inlet portion for receiving light emitted by the light-emitting device, and a light-outlet portion for emitting the received light outside the receiving cavity, the light-outlet portion being sandwiched between the front panel and the side panel; and a positioning portion integrally formed on the light guide strip, the light guide strip and the circuit board being jointly positioned on the body via the positioning portion.

[0008] Optionally, the medical device further includes: a support extending from the front panel toward the receiving cavity, the support having an adapter for cooperating with the positioning portion to at least position the light guide strip on the support, and the circuit board being held between the light guide strip and the support.

[0009] Optionally, one of the positioning part and the adapter part is a column, and the other is a through hole.

[0010] Optionally, the circuit board may also have through holes for the column to pass through.

[0011] Optionally, the medical device further includes a limiting part for limiting the decoupling of the adapter part from the positioning part.

[0012] Optionally, the positioning part includes a column extending outward from the light guide strip, the adapter part includes a through hole formed in the support member, and the limiting part includes an enlarged part formed in the column, the enlarged part being used to restrict the column from reversing and disengaging from the through hole after the column passes through the through hole.

[0013] Optionally, the medical device further includes: a waterproof structure for blocking the communication path between the splice seam between the light-emitting part and the front panel and the receiving cavity, and / or for blocking the communication path between the splice seam between the light-emitting part and the side panel and the receiving cavity.

[0014] Optionally, the waterproof structure is a protrusion integrally formed with the light guide strip.

[0015] Optionally, the light-gathering portion includes a first surface facing the circuit board and an opposite second surface, and the light-gathering portion has a light guide groove recessed from the first surface toward the second surface, and the light-emitting device is housed in the space enclosed by the light guide groove and the circuit board.

[0016] Optionally, the further away from the light-emitting device, the smaller the cross-sectional area of ​​the light guide groove in the first plane, and the first plane is perpendicular to the direction from the first surface to the second surface.

[0017] Optionally, the surface of the light guide groove is coated with a reflective layer.

[0018] Optionally, the light guide strip is made of silicone material.

[0019] Optionally, the light-emitting device is used to be illuminated when the medical device issues an alarm.

[0020] Optionally, the front panel includes a first edge adjacent to the light-emitting portion, and the light guide extends to the end of the first edge.

[0021] Optionally, the number of positioning portions is multiple and they are spaced apart along the extension direction of the light guide strip.

[0022] Optionally, the light-emitting device includes a first side mounted on the circuit substrate, a second side opposite to the first side, and a third side located between the first side and the second side, the third side being disposed toward the light-emitting portion, wherein light is irradiated into the light-incoming portion from the second side or the third side.

[0023] Optionally, the medical device further includes: a fixation bracket housed in the receiving cavity, wherein the side panel is fixed to the fixation bracket by fasteners and presses the light-emitting portion toward the front panel.

[0024] Compared with the prior art, the technical solutions of the embodiments of this disclosure have the following beneficial effects:

[0025] This disclosure provides a medical device comprising: a body having a receiving cavity, the body including a front panel for defining a front surface of the receiving cavity, and a side panel for defining at least one side surface of the receiving cavity; a circuit board housed in the receiving cavity and having a light-emitting device; a light guide strip including a light-inlet portion for receiving light emitted by the light-emitting device, and a light-outlet portion for emitting the received light outside the receiving cavity, the light-outlet portion being sandwiched between the front panel and the side panel; and a positioning portion integrally formed on the light guide strip, the light guide strip and the circuit board being jointly positioned on the body via the positioning portion.

[0026] This implementation scheme achieves screwless installation by using a positioning part integrally formed with the light guide strip, thus reducing the number of parts used and optimizing material management. Furthermore, since no additional screws or other fasteners are required, the light guide strip and circuit board can be easily and quickly installed onto the main body using only two hands, without the need for tools, saving installation costs and reducing assembly complexity. Therefore, the medical device based on this implementation scheme can achieve its alarm function with lower assembly complexity and fewer parts. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a medical device according to an embodiment of the present disclosure;

[0028] Figure 2 yes Figure 1 The front view of the structure shown;

[0029] Figure 3 yes Figure 1 A schematic diagram of a local structure from another perspective;

[0030] Figure 4 yes Figure 3 Exploded view of the structure shown;

[0031] Figure 5 yes Figure 4 A schematic diagram of the central light guide strip from another perspective;

[0032] Figure 6 yes Figure 2 A cross-sectional view along the AA direction;

[0033] Figure 7 yes Figure 2 A cross-sectional view along the BB direction. Detailed Implementation

[0034] To make the above-mentioned objectives, features and beneficial effects of this disclosure more apparent and understandable, specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is a schematic diagram of a medical device 1 according to an embodiment of the present disclosure. Figure 2 yes Figure 1 The diagram shows a front view of the structure. To more clearly illustrate the technical features of this embodiment, Figure 1 and Figure 2 The structure of medical device 1 that is not related to the alarm function has been simplified and replaced with a dashed outline.

[0036] This implementation scheme can be applied to any medical device 1 with alarm requirements, and further, it can also be applied to medical devices 1 with alarm and waterproof requirements. For example, medical device 1 may include monitors, anesthesia machines, ventilators and lung monitoring equipment, neonatal incubators, neonatal jaundice screening devices, etc.

[0037] For ease of description, in this embodiment, the length direction of medical device 1 is denoted as the x-direction, the width direction as the y-direction, and the height direction as the z-direction. In this embodiment, the front-back direction refers to the y-direction and its opposite direction. "Front" or "front side" refers to the direction in which medical device 1 faces the user when in use, while "rear" or "rear side" refers to the direction in which medical device 1 is away from the user when in use.

[0038] Specifically, refer to Figure 1 and Figure 2 The medical device 1 may include a body 10, which has a receiving cavity 100 to accommodate functional components of the medical device 1, such as control components (e.g., a microcontroller), communication components, etc. The body 10 may include a front panel 11 facing forward along the y-direction, a rear panel (not shown) opposite to the front panel 11, and a plurality of side panels 12 arranged around the front panel 11 and the rear panel. The front panel 11, the rear panel, and the plurality of side panels 12 together form the receiving cavity 100.

[0039] The front panel 11 is adapted to define at least a portion of the front surface of the receiving cavity 100. In some embodiments, the front panel 11 may be provided with a display screen 112, through which a user can view operating parameters fed back by the control components of the medical device 1, and / or, the user can send operation commands to the control components through the display screen 112. Furthermore, the front panel 11 may also be provided with function buttons, through which a user can send operation commands to the control components.

[0040] The plurality of side panels 12 may include a top panel facing upward along the z-direction and an opposite bottom panel, as well as left and right panels facing each other along the x-direction. Figure 1 The example illustrates the specific structure of the top panel, which is adapted to define the z-direction upward side surface of the receiving cavity 100.

[0041] Furthermore, a fixing bracket (not shown) may be provided within the receiving cavity 100 to form the basic framework of the receiving cavity 100. At least one side panel 12 is fixed to the fixing bracket by fasteners 121 to reliably define at least one side surface of the receiving cavity 100.

[0042] Furthermore, combined with Figure 3 and Figure 4The medical device 1 may also house a circuit board 2 within its receiving cavity 100. The circuit board 2 is equipped with a light-emitting device 21, which is illuminated when the medical device 1 issues an alarm. The light-emitting device 21 can be considered an equivalent light source to emit light when the medical device 1 issues an alarm, making it easier for the user (e.g., medical personnel) to notice the alarm information issued by the medical device 1. For example, the circuit board 2 may include a PCB, and the light-emitting device 21 may be pre-soldered or electrically connected to the circuit board 2 in any other manner. The circuit board 2 is adapted to control the brightness and darkness of the light-emitting device 21.

[0043] The number of light-emitting devices 21 can be multiple and arranged in an array on the circuit board 2 to form a point light source, a line light source, or a surface light source. For example, Figure 4 The example shown is based on a circuit board 2 with multiple light-emitting devices 21 arranged in a row along the x-direction at intervals, which can form a line light source. In practical applications, the number of light-emitting devices 21 and their specific positions and arrangements on the circuit board 2 can be adjusted as needed.

[0044] The light-emitting device 21 may include a light-emitting diode (LED) or other devices capable of providing a light source.

[0045] Further, refer to Figures 1 to 5 The medical device 1 may also include a light guide strip 3 disposed within the receiving cavity 100 and extending at least partially to the outer surface of the body 10. For example, the light guide strip 3 and the circuit board 2 may be stacked along the z-direction, with the side of the circuit board 2 containing the light-emitting device 21 facing the light guide strip 3. The light guide strip 3 may include a light-inlet portion 31 for receiving light emitted by the light-emitting device 21 and a light-outlet portion 32 for emitting the received light outside the receiving cavity 100, the light-outlet portion 32 being sandwiched between the front panel 11 and the side panel 12. Figures 1 to 4 The example shown is an instance where the light-emitting part 32 is sandwiched between the front panel 11 and the top panel. This allows the medical device 1 to emit light directly above the front surface of the body 10 when it issues an alarm. By placing the light-emitting part 32 in a prominent position on the medical device 1, the reliable implementation of the alarm function is ensured. In practical applications, the light-emitting part 32 can also be sandwiched between the front panel 11 and any other side panel 12, such as the left panel or bottom panel. Alternatively, the light-emitting part 32 can be placed between the front panel 11 and multiple side panels 12 to form a longer light strip and further enhance the alarm effect.

[0046] The light guide strip 3 can be made of a material with good light transmittance to ensure that the light emitted by the light-emitting device 21 is transmitted to the outside of the receiving cavity 100 with low loss. For example, the light guide strip 3 can be transparent to maximize light transmittance.

[0047] Further reference Figures 3 to 5 The light guide strip 3 may have a positioning part 33 integrally formed on it, and the light guide strip 3 and the circuit board 2 are jointly positioned on the body 10 via the positioning part 33. That is to say, the light guide strip 3 and the circuit board 2 are no longer fixed by additional fasteners (e.g., screws), but are fixed to the body 10 together by the positioning part 33, and the positioning part 33 and the light guide strip 3 form an integral part.

[0048] For example, the light guide strip 3 and the circuit board 2 are fixed together by the positioning part 33 to form a pre-assembled part, and then the pre-assembled part is positioned onto the body 10 by the positioning part 33. As another example, when the light guide strip 3 is fixed to the body 10 by the positioning part 33, the circuit board 2 is sandwiched between the body 10 and the light guide strip 3, which can also achieve the simultaneous positioning of the light guide strip 3 and the circuit board 2 by the positioning part 33.

[0049] By adopting this implementation scheme, the alarm function of medical device 1 can be realized through circuit board 2 and light guide strip 3. The alarm function is integrated into the main body 10 by the positioning part 33 integrally formed on the light guide strip 3, realizing screwless installation, reducing the use of parts and optimizing material management. Furthermore, since no additional screws or other fasteners are required, the light guide strip 3 and circuit board 2 can be easily and quickly installed onto the main body 10 with just two hands during installation, without the need for tools, saving installation costs and reducing assembly complexity. Thus, medical device 1 can realize alarm function with lower assembly complexity and fewer parts.

[0050] In a specific implementation, refer to Figures 1 to 6 The medical device 1 may also include a support member 13 extending from the front panel 11 toward the receiving cavity 100. Specifically, the support member 13 may be plate-shaped and connected perpendicularly to the front panel 11 to the side of the front panel 11 facing the receiving cavity 100. The support member 13 and the front panel 11 may be integrally formed, or they may be fixed together by screws, adhesives, or other means.

[0051] Furthermore, the support member 13 may be provided with an adapter 131, which is used to cooperate with the positioning part 33 to at least position the light guide strip 3 on the support member 13. For example, refer to Figures 4 to 6 The positioning part 33 may include a column 331 extending outward from the light guide strip 3 (e.g., toward the support member 13), and the adapter part 131 may include a through hole 132 formed in the support member 13. The column 331 is inserted into the through hole 132 to position the relative position of the light guide strip 3 and the front panel 11 in the x and / or y directions. Alternatively, the positioning part 33 may be a through hole formed in the light guide strip 3, and the adapter part 131 may be a column extending from the support member 13 toward the light guide strip 3. During installation, the through hole of the light guide strip 3 is aligned with the column and moved until the light guide strip 3 is positioned and supported on the support member 13.

[0052] Furthermore, along the direction from the front panel 11 to the side panel 12, for example, in the z direction shown in the figure, the circuit board 2 can be clamped between the light guide strip 3 and the support member 13. Thus, the light guide strip 3 is positioned on the support member 13 by the cooperation of the positioning part 33 and the adapter part 131, while the circuit board 2 is also positioned on the support member 13.

[0053] For example, continue to refer to Figures 4 to 5 The circuit board 2 may also have through holes 132 for the pillar 331 to pass through. The pillar 331 extending from the light guide strip 3 toward the support member 13 passes sequentially through the through holes 132 in the circuit board 2 and the support member 13, thereby connecting the light guide strip 3, the circuit board 2, and the support member 13 into a whole. Furthermore, the through holes 132 in the circuit board 2 can avoid the placement position of the light-emitting device 21 on the circuit board 2 to ensure that the alarm function and the positioning function do not interfere with each other.

[0054] For example, the through-hole 132 on the circuit board 2 can be eliminated. Along the stacking direction of the light guide strip 3 and the circuit board 2, the projected area of ​​the light guide strip 3 and the support member 13 is larger than the area of ​​the circuit board 2. The pillar 331 and the through-hole 132 can be set in the area of ​​the light guide strip 3 and the support member 13 outside the area where the circuit board 2 is located. Thus, reliable positioning of the circuit board 2 can be achieved without damaging the structure of the circuit board 2. Furthermore, the number of positioning structures formed by the pillar 331 and the through-hole 132 can be multiple and arranged around the circuit board 2 to achieve reliable positioning in both the x and y directions.

[0055] In some embodiments, the number of adapters 131 can be multiple, and similarly, the number of positioning parts 33 can also be multiple, with each positioning part 33 corresponding to one of the multiple adapters 131. For example, refer to... Figure 4 and Figure 5 The number of adapters 131 can be six and they are spaced apart along the extension direction of the support member 13 (e.g., the x direction). Correspondingly, the number of positioning parts 33 is also six and they are spaced apart along the extension direction of the light guide strip 3 (e.g., the x direction). The support member 13 can be in the shape of a long plate and its extension direction is the extension direction of the longer side. The light guide strip 3 can be in the shape of a long strip and its extension direction is the length direction.

[0056] Furthermore, the circuit board 2 can also be a long strip plate, with six through holes 132 spaced apart along its length to form an adapter portion 131.

[0057] Therefore, positioning structures are provided along the entire length to improve positioning reliability.

[0058] In some embodiments, the medical device 1 may further include a limiting part 34 for limiting the decoupling of the adapter part 131 from the positioning part 33. This allows the light guide strip 3 and the circuit board 2 to be reliably positioned on the body 10, preventing the light guide strip 3 and / or the circuit board 2 from unexpectedly detaching during normal use of the medical device 1 and causing alarm function failure.

[0059] Specifically, refer to Figure 6 A bulge 332 may be formed in the middle of the column 331 along the extending direction. The diameter of the bulge 332 is larger than the diameter of the column 331 itself, and the diameter of the bulge 332 is larger than the diameter of the through hole 132. The bulge 332 can act as a backstop. After the column 331 passes through the through hole 132, the circuit board 2 and the support member 13 are clamped between the bulge 332 and the light guide strip 3, thereby preventing the column 331 from reversing (i.e., reversing the direction in which the column 331 extends into the through hole 132) and leaving the through hole 132.

[0060] Furthermore, compared to the end of the column 331 that is away from the light guide strip 3, the enlarged portion 332 can be disposed closer to the end of the column 331 that is connected to the light guide strip 3. Furthermore, the distance from the enlarged portion 332 to the light guide strip 3 can be determined according to the thickness of the circuit board 2 and the support member 13, so as to ensure that the circuit board 2 is reliably and stably positioned on the support member 13 with the cooperation of the enlarged portion 332 and the light guide strip 3, and to restrict the movement of the circuit board 2 along the extension direction (e.g., the z direction) of the column 331.

[0061] In some embodiments, the pillars 331 and the enlarged portions 332 can be integrally formed; furthermore, both can be made of a soft material. During installation, the six thin pillars 331 on the light guide strip 3 pass through the through holes 132 on the circuit board 2 and the support member 13 to fasten the light guide strip 3 onto the support member 13, achieving screwless installation. Furthermore, because it is made of a soft material, the pillars 331 and the enlarged portions 332 formed thereon have a certain degree of deformability, facilitating their passage through the through holes 132 and reducing assembly difficulty.

[0062] Further reference Figure 6 The enlarged portion 332, viewed in cross-section, can be wedge-shaped, with a gentle slope towards the end of the column 331 and a steep slope away from it. This allows the enlarged portion 332 to pass more easily through the through hole 132 on the support member 13. However, when attempting to exit in the opposite direction after passing through, it will be obstructed and difficult to remove. It is easy to understand that the limiting portion 34 can also be other existing limiting structures, such as a buckle extending away from the end of the column 331. When pressed, the buckle can fit tightly against the column 331, facilitating passage through the through hole 132 on the support member 13; when not pressed, it opens to prevent the column 331 from exiting in the opposite direction.

[0063] In a variation, the limiting part 34 may be provided at the through hole 132 to restrict the column 331 from reversing out of the through hole 132 after the column 331 passes through the through hole 132.

[0064] In a specific implementation, refer to Figures 4 to 7 The medical device 1 may also include a waterproof structure 35 for blocking at least one of the following communication paths: the communication path between the seam between the light-emitting part 32 and the front panel 11 and the receiving cavity 100, and the communication path between the seam between the light-emitting part 32 and the side panel 12 and the receiving cavity 100.

[0065] For example, the waterproof structure 35 may include a protrusion 351 extending from the light guide strip 3 toward the side panel 12. The protrusion 351 blocks the seam between the side panel 12 and the light-emitting part 32 to prevent external moisture from entering the receiving cavity 100 through the seam. Furthermore, the side panel 12 near the light-emitting part 32 may be curved for aesthetic reasons. Correspondingly, the side of the protrusion 351 facing the side panel 12 may also be curved, so that the protrusion 351 can fit snugly against the side panel 12, further enhancing the sealing effect.

[0066] For example, the front panel 11 may include a first edge 111 adjacent to the light-emitting part 32, and the waterproof structure 35 may be provided on the side of the light guide strip 3 facing the first edge 111 with a convex-concave structure. Correspondingly, the first edge 111 may be provided with a concave-convex structure. The concave-convex structure and the convex-concave structure fit together to form a multi-layer sealing structure. Furthermore, in the concave-convex structure provided on the first edge 111, the concave structure may be located in front of the convex structure. In case external moisture enters the splice between the front panel 11 and the light-emitting part 32, it can also accumulate in the concave structure, preventing moisture from further entering and reaching the circuit board 2, thus protecting the light-emitting device 21 from moisture damage.

[0067] Furthermore, the waterproof structure 35 and the light guide strip 3 can be integrally formed. For example, the waterproof structure 35 can be a protrusion integrally formed with the light guide strip 3. In other words, the light guide strip 3, the waterproof structure 35, and the positioning part 33 can be a single piece, solving both waterproofing and light transmission issues with a single component, further reducing the number of parts required to implement the alarm function and simplifying the structure.

[0068] In some embodiments, the light guide strip 3 is made of a soft material at least in the light-emitting portion 32. Furthermore, when the side panel 12 is fixed to the mounting bracket by fasteners 121, the light-emitting portion 32 is pressed against the front panel 11, causing it to deform slightly. This strengthens the sealing effect of the seam between the side panel 12 and the light-emitting portion 32, as well as the seam between the front panel 11 and the light-emitting portion 32, forming a first waterproof barrier. Furthermore, the waterproof structure 35 located behind the seam is adapted to form a second waterproof barrier. Even if liquid enters the body 10 from the seam, it can be blocked by the waterproof structure 35, protecting the various circuit devices installed in the receiving cavity 100 from water immersion and short circuits.

[0069] For example, the light guide strip 3, the integrally molded positioning part 33, and the waterproof structure 35 can all be made of silicone material.

[0070] In a specific implementation, refer to Figure 7 The light-emitting device 21 may include a first side 211 mounted on the circuit board 2, a second side 212 opposite to the first side 211, and a third side 213 located between the first side 211 and the second side 212. The third side 213 is disposed towards the light-emitting portion 32, wherein light shines into the light-receiving portion 31 from the second side 212 or the third side 213. That is to say, the light-emitting device 21 can realize the alarm by emitting light from the top surface or the side surface.

[0071] In a specific implementation, refer to Figure 5 and Figure 7 The light-gathering part 31 may include a first surface 31a facing the circuit board 2 and an opposite second surface 31b. The light-gathering part 31 may have a light guide groove 311 recessed from the first surface 31a toward the second surface 31b. In other words, the light-gathering part 31 has a light guide groove 311 open toward the circuit board 2. As the light guide strip 3 and the circuit board 2 are stacked and positioned on the support member 13, the opening of the light guide groove 311 is closed by the circuit board 2.

[0072] Furthermore, the light-emitting device 21 is housed within the space enclosed by the light guide groove 311 and the circuit board 2. Thus, the light-emitting device 21 is covered by the light guide groove 311, which helps to reduce light source loss and ensures that the light emitted by the light-emitting device 21 is received by the light-inlet section 31 and then conducted and diffused to the light-outlet section 32.

[0073] Furthermore, considering manufacturing tolerances, there can be a non-zero gap between the light-emitting device 21 and the light guide groove 311 to reserve sufficient assembly allowance, so as to avoid the relative positional relationship between the light-emitting device 21 and the light guide groove 311 from hindering the positioning of the light guide strip 3 to the support member 13.

[0074] In some embodiments, continue to refer to Figure 7The further away from the light-emitting device 21, the smaller the cross-sectional area of ​​the light guide groove 311 in the first plane, wherein the first plane is perpendicular to the first surface 31a and points towards the second surface 31b. For example, the light guide groove 311 can be a conical concave hole, the bottom surface of which is suitable for forming the opening of the light guide groove 311, and the light guide groove 311 gradually tapers away from the light-emitting device 21. This reduces the loss of light source and ensures that most of the light shines through the front surface of the body 10 to achieve a striking effect.

[0075] Furthermore, the conical side can be recessed away from the light-emitting device 21 to form an arc surface. As a result, the area of ​​the light-guiding surface (i.e., the conical side) of the light guide groove 311 is further increased, which is conducive to receiving more light emitted by the light-emitting device 21, and the light output of the light section 32 along the extension direction (e.g., the x direction) is more uniform when viewed from the front of the medical device 1, reducing the graininess.

[0076] Furthermore, along the y-direction, the light-emitting device 21 can be located in the middle of the circuit board 2 to avoid being too close to the front panel 11, which would cause uneven light emission of the light-emitting part 32 along the extension direction, and also to avoid being too far from the front panel 11, which would affect the light emission brightness of the light-emitting part 32.

[0077] In some embodiments, the surface of the light guide groove 311 may be coated with a reflective layer, for example, the side of the light guide groove 311 away from the light emitting part 32 may be coated with a reflective layer to ensure that as much light emitted by the light-emitting device 21 as possible reaches the light emitting part 32.

[0078] In some embodiments, the light guide strip 3 may extend to the end of the first edge 111, that is, the top of the body 10, when viewed from the front, is provided with a light-emitting portion 32 in the entire x-direction. As a result, the light alarm emitted by the medical device 1 when the light-emitting device 21 is lit is more conspicuous.

[0079] While the above disclosure is provided, it is not limited thereto. Any person skilled in the art may make various alterations and modifications without departing from the spirit and scope of this disclosure; therefore, the scope of protection of this disclosure shall be determined by the scope defined in the claims.

Claims

1. A medical device, characterized by Comprise: a body having a receiving cavity, the body comprising a front panel for defining a front surface of the receiving cavity, and further comprising a side panel for defining at least one side surface of the receiving cavity; a circuit substrate housed in the receiving cavity and having a light emitting device; a light guide strip comprising a light receiving portion for receiving light emitted by the light emitting device, and a light emitting portion for emitting the received light out of the receiving cavity, the light emitting portion being sandwiched between the front panel and the side panel; a positioning portion integrally formed on the light guide strip, the light guide strip and the circuit substrate being collectively positioned on the body via the positioning portion.

2. The medical device of claim 1, wherein, Further comprise: a support member extending from the front panel towards the receiving cavity, the support member being provided with an adapting portion for cooperating with the positioning portion to at least position the light guide strip on the support member, the circuit substrate being clamped between the light guide strip and the support member.

3. The medical device of claim 2, wherein, One of the positioning portion and the adapting portion is a column, and the other is a through hole.

4. The medical device of claim 3, wherein, The circuit substrate is also provided with a through hole for the column to pass through.

5. The medical device of claim 2, wherein, Further comprise: a limiting portion for limiting decoupling of the adapting portion from the positioning portion.

6. The medical device of claim 5, wherein, The positioning portion comprises a column extending outwards from the light guide strip, the adapting portion comprises a through hole formed on the support member, and the limiting portion comprises a bulging portion formed on the column, the bulging portion being used for limiting reverse disengagement of the column from the through hole after the column passes through the through hole.

7. The medical device of claim 1, wherein, Further comprise: a waterproof structure for blocking a communication path between a joint gap between the light emitting portion and the front panel and the receiving cavity, and / or a communication path between a joint gap between the light emitting portion and the side panel and the receiving cavity.

8. The medical device of claim 7, wherein, The waterproof structure is a protruding portion integrally formed on the light guide strip.

9. The medical device of claim 1, wherein, The light guide strip is made of silica gel material.

10. The medical device of claim 1, wherein, The positioning portion is in plurality and is arranged at intervals along an extension direction of the light guide strip.

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