Rear end cover sealing waterproof structure of microcirculation imaging device

Abstract

The application relates to the technical field of medical devices, in particular to a rear-end cover sealing and waterproof structure of a microcirculation imaging device. The rear-end cover sealing and waterproof structure comprises a cylindrical shell with a rear-end opening, an inner cover and an outer cover. The inner cover is embedded into the shell from the rear-end opening of the shell and is fixedly connected with one end of an inner support of the shell. The outer edge of the inner cover is attached to the inner surface of the shell, and a groove is arranged on the outer edge of the inner cover for mounting a sealing rubber ring. A first protruding ring is arranged on the outer end surface of the inner cover. A second protruding ring and a third protruding ring are arranged on the inner end surface of the outer cover. The ring surface of the second protruding ring is attached to the inner surface of the shell, and the third protruding ring is fixedly connected with the first protruding ring through screw threads. The outer edge of the inner cover is attached to the inner surface of the shell, and a groove is arranged on the outer edge of the inner cover for mounting a sealing rubber ring, so that the sealing rubber ring is tightly attached to the inner surface of the shell, and water is prevented from entering the shell from the gap between the outer edge of the inner cover and the inner surface of the shell.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a waterproof sealing structure for the rear end cover of a microcirculation imaging device. Background Technology

[0002] The blood circulation between arterioles and venules in the human body is called microcirculation. It is the most basic unit of blood circulation and the site of substance exchange between blood and tissues. The blood flow in microcirculation directly reflects the metabolic status of human organs. If microcirculation is impaired, it will significantly affect the physiological functions of tissues and organs. In other words, microcirculatory disorders often foreshadow signs of certain diseases. For example, significant changes in the state of microcirculation occur in some autoimmune diseases, cardiovascular and cerebrovascular diseases, burns, pulmonary edema, and shock. Therefore, monitoring and observing human microcirculation is of great clinical significance for medical personnel.

[0003] Microcirculation imaging devices are a new type of photoelectric instrument mainly used for examining the human microcirculation. Because they are non-invasive and have no side effects, they are widely used for the early diagnosis, disease prediction, efficacy assessment, and prognosis estimation of microcirculation changes in various diseases (such as cardiovascular and cerebrovascular diseases, hypertension, stroke, diabetes, and rheumatoid arthritis, especially for the prevention of changes in the condition of critically ill patients), providing a basis for clinical diagnosis and treatment.

[0004] However, existing microcirculation imaging devices have poor sealing performance at both ends of the housing. During use or routine cleaning and disinfection, liquid can easily enter the housing through gaps, damaging the internal circuitry. Therefore, there is an urgent need to develop a microcirculation imaging device with good waterproof performance and easy disassembly and assembly. Summary of the Invention

[0005] The purpose of this invention is to solve one of the problems mentioned in the background art. To achieve this purpose, the following technical solution is adopted:

[0006] A waterproof sealing structure for the rear end cover of a microcirculation imaging device includes a cylindrical outer shell with a rear end opening, an inner cover, and an outer cover. The inner cover is inserted into the outer shell from the rear end opening and is fixedly connected to one end of the inner support of the outer shell. The outer edge of the inner cover is in contact with the inner surface of the outer shell, and a groove is provided on the outer edge of the inner cover for installing a sealing ring. A raised first ring is provided on the outer end face of the inner cover, and a raised second ring and a third ring are provided on the inner end face of the outer cover. The circular surface of the second ring is in contact with the inner surface of the outer shell, and the third ring is threadedly connected and fixed to the first ring.

[0007] A further improvement is that the outer ring wall of the first ring is provided with an external thread, and the inner ring wall of the third ring is provided with an internal thread that mates with the external thread, thereby realizing a threaded connection and fixation between the third ring and the first ring.

[0008] A further improvement is that the microcirculation imaging device also includes a connecting wire, a first through hole is provided on the outer cover, and a second through hole is provided on the inner cover. The first and second through holes are used for the connecting wire to pass through.

[0009] A further improvement is that the connecting wire is a pluggable connecting wire, which includes a wire head, a wire body, and a pluggable connecting end. One end of the wire head is provided with a pluggable connecting end, which is used to pass through the second through hole and connect to the wiring terminal inside the housing. The other end of the wire head is provided with a wire body. The wire head is cylindrical, and the annular surface of the wire head is respectively attached to the inner surface of the first through hole and the inner ring wall of the first annulus.

[0010] A further improvement is that the annular surface of the wire end includes a large annular surface and a small annular surface, the diameter of the large annular surface is larger than the diameter of the small annular surface, the large annular surface is in contact with the inner wall of the first annular surface, and the small annular surface is in contact with the inner surface of the first through hole.

[0011] A further improvement is that a sealing groove is provided on the large annular surface for installing a sealing ring.

[0012] A further improvement is that the inner cover and the inner support are respectively provided with screw holes, and the inner cover and the inner support are connected by bolts to the screw holes.

[0013] A further improvement is that at least one screw hole is provided on the outer shell near the rear opening, and a retaining ring is provided on the annular surface of the second ring on the outer cover. One end of the bolt passes through the screw hole and is inserted into the retaining ring.

[0014] A further improvement is that the outer shell, inner cover, and outer cover are all made of aluminum alloy.

[0015] A further improvement is that the sealing ring is a rubber ring.

[0016] The beneficial effects of this invention are:

[0017] This invention achieves a tight seal between the outer edge of the inner cover and the inner surface of the outer shell, with a groove on the outer edge for installing a sealing ring. This prevents water from entering the shell through the gap between the outer edge of the inner cover and the inner surface. Furthermore, the second ring's annular surface is fitted to the inner surface of the shell, and the third ring is threadedly connected to the first ring, further preventing water from entering the shell. Even if a small amount of water enters the space between the inner and outer covers through the gap between the second ring's annular surface and the inner surface, the sealing ring on the outer edge of the inner cover prevents further penetration, resulting in excellent waterproofing. The invention is also simple in structure and easy to install. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a microcirculation imaging device according to the present invention;

[0019] Figure 2 This is a first exploded view of the present invention;

[0020] Figure 3 This is the second exploded view of the present invention;

[0021] Figure 4 This is an exploded view of the sealing and waterproofing structure of the rear cover of the present invention;

[0022] Figure 5 This is a schematic diagram of the outer cover structure of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outer shell; 2. Inner cover; 3. Outer cover; 4. Internal support; 5. Groove; 6. Sealing ring; 7. First ring; 8. Second ring; 9. Third ring; 10. External thread; 11. Internal thread; 12. First through hole; 13. Second through hole; 14. Wire end; 15. Wire body; 16. Pluggable connection end; 17. Large annular surface; 18. Small annular surface; 19. Sealing groove; 20. Screw hole; 21. Bolt. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0026] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "transmittally connected" to another component, the two components only need to be able to transmit power; the specific implementation can be achieved using existing technologies, which will not be elaborated here. When a component is perpendicular or approximately perpendicular to another component, it means that the two components are ideally perpendicular, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In this invention, the terms "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0029] Please refer to the attached document. Figure 1 - Appendix Figure 5 This invention provides a waterproof sealing structure for the rear end cover of a microcirculation imaging device, comprising a cylindrical outer shell 1 with a rear opening, an inner cover 2, and an outer cover 3. The inner cover 2 is inserted into the outer shell 1 through the rear opening and is fixedly connected to one end of an internal support 4 of the outer shell 1. Both the inner cover 2 and the internal support 4 are provided with screw holes 20. The inner cover 2 and the internal support 4 are connected and fixed by bolts 21 engaging the screw holes 20. The outer edge of the inner cover 2 is fitted against the inner surface of the outer shell 1, and a groove 5 is provided on the outer edge of the inner cover 2 for installing a sealing ring 6. A raised first ring 7 is provided on the outer end face of the inner cover 2. The screw holes 20 on the inner cover 2 are located within the area enclosed by the first ring 7, and there are three of them. The inner end face of the outer cover 3 is provided with a raised second ring 8 and a third ring 9. The annular surface of the second ring 8 is fitted against the inner surface of the outer shell 1, and the third ring 9 is threadedly connected and fixed to the first ring 7.

[0030] In this invention, when installing the inner cover 2, the inner cover 2 is embedded into the outer shell 1, aligning the screw holes 20 on the inner cover 2 with the screw holes 20 on the inner bracket 4, and then fixed with bolts 21. The outer edge of the inner cover 2 is fitted against the inner surface of the outer shell 1, and a groove 5 is provided on the outer edge of the inner cover 2 for installing the sealing ring 6, ensuring a tight fit between the sealing ring 6 and the inner surface of the outer shell 1. This prevents water from entering the interior of the outer shell 1 through the gap between the outer edge of the inner cover 2 and the inner surface of the outer shell 1. Furthermore, the annular surface of the second ring 8 is fitted against the inner surface of the outer shell 1, and the third ring 9 is threadedly connected to the first ring 7, further preventing water from entering the interior of the outer shell 1. Even if a small amount of water enters the space between the inner cover 2 and the outer cover 3 through the gap between the annular surface of the second ring 8 and the inner surface of the outer shell 1, the sealing ring 6 on the outer edge of the inner cover 2 prevents further water penetration into the interior of the outer shell 1, achieving excellent waterproofing. The structure is simple and easy to install.

[0031] In addition, a recess (not shown in the figure) can also be set on the annular surface of the second ring 8, and a sealing ring 6 can be installed in the recess to improve the waterproof effect of the outer cover 3.

[0032] like Figure 3 , Figure 4 , Figure 5 As shown, the outer ring wall of the first ring 7 is provided with an external thread 10, and the inner ring wall of the third ring 9 is provided with an internal thread 11 that mates with the external thread 10, thereby achieving a threaded connection and fixation between the third ring 9 and the first ring 7. During installation, the third ring 9 is fitted onto the outer ring wall of the first ring 7, and then rotated to fix the connection between the third ring 9 and the first ring 7, thereby achieving the installation and fixation of the outer cover 3.

[0033] Specifically, the microcirculation imaging device further includes a connecting line, which can be used as a data transmission line for transmitting data to an external display terminal or as a power supply line for powering the microcirculation imaging device. The outer cover 3 is provided with a first through hole 12, and the inner cover 2 is provided with a second through hole 13. The first through hole 12 and the second through hole 13 are used for the connecting line to pass through.

[0034] Specifically, the connecting cable is a pluggable connecting cable, that is, the connecting cable is pluggable, such as... Figure 2As shown, the pluggable connector includes a wire head 14, a wire body 15, and a pluggable connector end 16. One end of the wire head 14 is provided with a pluggable connector end 16, which is used to pass through the second through hole 13 and connect to the wiring terminal inside the outer casing 1. The other end of the wire head 14 is provided with a wire body 15. The wire head 14 is cylindrical, and the annular surface of the wire head 14 is respectively attached to the inner surface of the first through hole 12 and the inner ring wall of the first ring 7.

[0035] The annular surface of the wire end 14 includes a large annular surface 17 and a small annular surface 18. The diameter of the large annular surface 17 is larger than the diameter of the small annular surface 18. The large annular surface 17 is fitted with the inner ring wall of the first annular surface 7, and the small annular surface 18 is fitted with the inner surface of the first through hole 12.

[0036] A sealing groove 19 is provided on the large annular surface 17 for installing the sealing ring 6.

[0037] After the inner cover 2 is installed, the pluggable connector 16 is passed through the second through hole 13 and connected to the wiring terminal inside the outer casing 1. At this time, the large annular surface 17 of the wire end 14 is also inserted into the first ring 7, and the large annular surface 17 is in contact with the inner ring wall of the first ring 7. Since a sealing ring 6 is installed on the large annular surface 17, it can prevent water from entering the interior of the outer casing 1 through the gap between the large annular surface 17 and the inner ring wall of the first ring 7. After the connecting wire is installed, the outer cover 3 can be installed. After tightening the outer cover 3, the small annular surface 18 is in contact with the inner surface of the first through hole 12.

[0038] As a preferred embodiment of the present invention, at least one screw hole 20 is provided on the outer shell 1 near the rear opening, and a retaining ring is provided on the annular surface of the second ring 8 on the outer cover 3. One end of the bolt 21 passes through the screw hole 20 and is inserted into the retaining ring (not shown in the figure).

[0039] The purpose of providing a screw hole 20 on the outer shell 1 near the rear opening and a retaining ring on the annular surface of the second ring 8 on the outer cover 3 is to prevent people from disassembling the outer cover 3 by hand and causing damage to the equipment. After one end of the bolt 21 passes through the screw hole 20 and is inserted into the retaining ring, the outer cover 3 cannot be disassembled by rotation. It can only be disassembled after the bolt 21 is removed.

[0040] Preferably, the outer shell 1, inner cover 2, and outer cover 3 are all made of aluminum alloy with an anodized surface. Aluminum alloy is hard, which can increase the service life of the equipment and prevent deformation. Of course, other materials, such as plastic, can also be used, but the quality is not as good as that of aluminum alloy. In addition, the sealing ring 6 is preferably a rubber ring, but it can also be a sealing ring 6 made of other materials, as long as it is reasonable.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all protected by the present invention.

Claims

1. A waterproof sealing structure for the rear end cover of a microcirculation imaging device, characterized in that, The device includes a cylindrical outer shell with a rear opening, an inner cover, and an outer cover. The inner cover is inserted into the outer shell from the rear opening and is fixedly connected to one end of the inner support of the outer shell. The outer edge of the inner cover is in contact with the inner surface of the outer shell, and a groove is provided on the outer edge of the inner cover for installing a sealing ring. A raised first ring is provided on the outer end face of the inner cover, and a raised second ring and a third ring are provided on the inner end face of the outer cover. The circular surface of the second ring is in contact with the inner surface of the outer shell, and the third ring is threadedly connected to the first ring. Screw holes are provided on the inner cover and the inner support, and the inner cover and the inner support are connected by bolts to the screw holes. The screw holes on the inner cover are located within the area enclosed by the first ring. The microcirculation imaging device further includes a connecting wire. The outer cover has a first through hole, and the inner cover has a second through hole. The first and second through holes are used for the connecting wire to pass through. The connecting wire is a pluggable connecting wire, comprising a wire head, a wire body, and a pluggable connection end. One end of the wire head has a pluggable connection end, which is used to pass through the second through hole and connect to a terminal inside the outer casing. The other end of the wire head has a wire body. The wire head is cylindrical, and its annular surface is respectively attached to the inner surface of the first through hole and the inner ring wall of the first ring. The annular surface of the wire head includes a large annular surface and a small annular surface. The diameter of the large annular surface is larger than the diameter of the small annular surface. The large annular surface is attached to the inner ring wall of the first ring, and the small annular surface is attached to the inner surface of the first through hole. When installing the inner cover, insert the inner cover into the outer shell, align the screw holes on the inner cover with the screw holes on the inner bracket, and then use bolts to fix the connection. The sealing ring fits tightly against the inner surface of the outer shell to prevent water from entering the interior of the outer shell through the gap between the outer edge of the inner cover and the inner surface of the outer shell. The second ring fits against the inner surface of the outer shell, and the third ring is threadedly connected to the first ring to further prevent water from entering the interior of the outer shell.

2. The rear end cover sealing and waterproof structure of the microcirculation imaging device according to claim 1, characterized in that, The outer ring wall of the first ring is provided with an external thread, and the inner ring wall of the third ring is provided with an internal thread that mates with the external thread, thereby realizing the threaded connection and fixation between the third ring and the first ring.

3. The rear end cover sealing and waterproof structure of the microcirculation imaging device according to claim 2, characterized in that, A sealing groove is provided on the large annular surface for installing a sealing ring.

4. The rear end cover sealing and waterproof structure of the microcirculation imaging device according to claim 1, characterized in that, At least one screw hole is provided on the outer shell near the rear opening, and a locking ring is provided on the annular surface of the second ring on the outer cover. One end of the bolt passes through the screw hole and is inserted into the locking ring.

5. The rear end cover sealing and waterproof structure of the microcirculation imaging device according to claim 1, characterized in that, The outer shell, inner cover, and outer cover are all made of aluminum alloy.

6. The rear end cover sealing and waterproof structure of a microcirculation imaging device according to claim 1 or 3, characterized in that, The sealing ring is a rubber ring.

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