Electrostatic discharge mechanism and medical device

Abstract

The application relates to an electrostatic discharge mechanism and a medical device. The electrostatic discharge mechanism is arranged in a cavity of a grounding mechanism. The electrostatic discharge mechanism comprises a first mounting piece, a first insulating piece and a second mounting piece. The first mounting piece is provided with a first mounting hole. The first insulating piece is connected with the first mounting piece. The second mounting piece is provided with a second mounting hole. The second mounting hole and the first mounting hole are concentrically arranged. The edges of the first insulating piece and the second mounting piece form a discharge cavity through the cavity wall of the cavity. The discharge cavity is arranged in the cavity. The first mounting piece and the second mounting piece are made of conductive material. The electrostatic discharge mechanism provided by the application does not need to be provided with a safety capacitor for discharge. Charge discharge can be realized through a mechanical structure. There is no direct contact between the first mounting piece and the second mounting piece and between the first mounting piece and the grounding mechanism. Charge transmission can be realized through the discharge cavity. Meanwhile, the safety requirements and the electromagnetic compatibility requirements in the medical device are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a static electricity discharge mechanism and a medical device. BACKGROUND

[0002] In the electromagnetic compatibility test of medical electrical equipment, the medical electrical equipment needs to be tested for static electricity discharge. However, after the static electricity discharge of the to-be-discharged mechanism, static electricity will accumulate on the to-be-discharged mechanism, which may affect the normal operation of the equipment if the static electricity is not discharged in time.

[0003] In the prior art, the method for static electricity discharge is usually grounding, that is, a conductor is used to short-circuit the part where static electricity accumulates and the protection grounding part. However, in the safety requirements of medical equipment, the requirement for the isolation (floating) application part is that it must be isolated from the protection grounding part to achieve the isolation requirement of the 1MOPP (1 patient protection measure). The above static electricity discharge operation violates the isolation requirement in the isolation (floating) safety requirement. Therefore, the static electricity discharge scheme in the prior art cannot solve the contradiction between electromagnetic compatibility and the requirement for the isolation (floating) application part in medical electrical equipment. SUMMARY

[0004] Therefore, it is necessary to provide a static electricity discharge mechanism and a medical device to solve the contradiction between electromagnetic compatibility and safety.

[0005] A static electricity discharge mechanism is arranged in a cavity of a grounding mechanism, and the static electricity discharge mechanism comprises:

[0006] a first mounting member provided with a first mounting hole;

[0007] a first insulating member connected with the first mounting member;

[0008] a second mounting member provided with a second mounting hole;

[0009] The second mounting hole is concentrically arranged with the first mounting hole, and the edges of the first insulating member and the second mounting member are connected through the cavity wall to form a discharge cavity. The discharge cavity is arranged in the cavity, and the first mounting member and the second mounting member are made of conductive material.

[0010] In one embodiment, the second mounting member comprises a main body part and a connecting part arranged at an angle, the connecting part is arranged around the main body part, the second mounting hole is arranged on the main body part, and the connecting part is used to connect the cavity wall.

[0011] In one embodiment, a second insulating member is further arranged in the discharge cavity.

[0012] In one of the embodiments, the core of the cable is configured to pass through the first mounting hole, the discharge cavity and the second mounting hole in sequence, the first mounting hole has a radial dimension greater than that of the second mounting hole, and the metal shielding layer wrapped on the core is located in the discharge cavity and connected to the first mounting member.

[0013] In one of the embodiments, the first mounting member is cuboid-shaped, the first insulating member is hollow cuboid-shaped, the first insulating member is sleeved on the first mounting member, and the first insulating member has a dimension along an axial direction of the first mounting hole greater than or equal to that of the first mounting member along the axial direction.

[0014] In one of the embodiments, the first mounting member is disc-shaped, the first insulating member is ring-shaped, the first insulating member is sleeved on the first mounting member, and the first insulating member has a dimension along an axial direction of the first mounting hole greater than or equal to that of the first mounting member along the axial direction.

[0015] The application further provides a medical device, which comprises a to-be-discharged mechanism, a grounding mechanism, a cable and the above-described electrostatic discharge mechanism, the electrostatic discharge mechanism is connected to the grounding mechanism, a first end of the cable is electrically connected to the to-be-discharged mechanism, a core of a second end of the cable passes through the first mounting hole, the discharge cavity and the second mounting hole in sequence and extends into a cavity of the grounding mechanism, a metal shielding layer wrapped on the core of the second end is located in the discharge cavity and connected to the first mounting member.

[0016] In one of the embodiments, a crimping portion is arranged on the metal shielding layer of the second end, the crimping portion is arranged around a circumference of the cable and extends towards the first insulating member.

[0017] In one of the embodiments, the grounding mechanism is provided with a through hole communicating the cavity with the outside, and the first insulating member is connected to a hole wall of the through hole.

[0018] In one of the embodiments, a central processing unit is further arranged in the cavity, and the core of the second end is electrically connected to the central processing unit.

[0019] The electrostatic discharge mechanism is arranged in the cavity of the grounding mechanism, the first insulating member of the electrostatic discharge mechanism is located between the first mounting member and the grounding mechanism, and the first insulating member is connected to the first mounting member and the grounding mechanism respectively, so as to insulate the first mounting member and the grounding mechanism. The second mounting member is connected to the cavity wall of the cavity, so that the second mounting member, the first mounting member, the first insulating member and the cavity wall of the cavity form a discharge cavity. Because the second mounting member and the first mounting member are made of metal materials, there is a capacitive effect between the second mounting member and the first mounting member, the charge on the first mounting member can be transmitted to the second mounting member through the discharge cavity, and the second mounting member is connected to the grounding mechanism, so that the charge is transmitted to the grounding mechanism for discharge. The electrostatic discharge mechanism provided in the application does not need to be provided with a safety capacitor for discharge, and the charge discharge can be realized through a mechanical structure, that is, the first mounting member and the second mounting member are not in direct contact, and the charge transmission can be realized through the discharge cavity, which meets the safety requirements and electromagnetic compatibility requirements in medical equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structure schematic diagram of a medical device provided by an embodiment of the application.

[0021] Figure 2 A structure schematic diagram of an electrostatic discharge mechanism provided by an embodiment one of the application.

[0022] Figure 3 An exploded view of the electrostatic discharge mechanism provided by the embodiment one of the application.

[0023] Figure 4 A structure schematic diagram of an electrostatic discharge mechanism provided by an embodiment two of the application.

[0024] Figure 5 A structure schematic diagram of an electrostatic discharge mechanism provided by an embodiment three of the application.

[0025] In the drawings:

[0026] 100, first mounting member; 110, first mounting hole;

[0027] 200, first insulating member;

[0028] 300, second mounting member; 310, main body part; 311, second mounting hole; 320, connecting part; 330, discharge cavity;

[0029] 400, second insulating member;

[0030] 500, to-be-discharged mechanism;

[0031] 600, grounding mechanism; 610, cavity;

[0032] 700, cable; 710, core; 720, metal shield layer;

[0033] 800, central processing unit. DETAILED DESCRIPTION

[0034] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners, which are different from those described herein, and it is understood that similar improvements can be made by those skilled in the art without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0037] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless specifically stated and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not mean the only implementation.

[0040] In the safety requirements of medical equipment, the requirements for the to-be-discharged mechanism (isolated (floating) application part) are that it must achieve the isolation requirements of a patient protection measure (1MOPP) with the protection ground part, that is, the electrical clearance is 2.5mm or more, the creepage distance is 4mm or more, and the dielectric strength is 1500VAC 1min or more. In the electromagnetic compatibility (EMC) requirements of medical equipment, the requirements for the accessible part are that the metal material part should withstand a contact discharge of a voltage level of ±8kV for 10 times, and the non-metal material part should withstand an air discharge of a voltage level of ±15KV for 10 times.

[0041] In the field of medical devices, after the to-be-discharged mechanism is subjected to electrostatic discharge, static charge accumulation will occur on the to-be-discharged mechanism, which may affect the normal operation of the equipment if the static charge cannot be discharged in time. The usual method of electrostatic discharge is grounding. In the related art, an approval capacitor is used to cross between the protection ground part and the isolated (floating) application part, thereby discharging the to-be-discharged mechanism, but the lead inductance of the approval capacitor hinders electrostatic discharge.

[0042] To this end, the application provides an electrostatic discharge mechanism arranged in the cavity 610 of the grounding mechanism 600, which comprises a first mounting piece 100, a first insulating piece 200 and a second mounting piece 300, the first mounting piece 100 is provided with a first mounting hole 110; the first insulating piece 200 is connected with the first mounting piece 100; the second mounting piece 300 is provided with a second mounting hole 311, the second mounting hole 311 is concentrically arranged with the first mounting hole 110, and the edges of the first insulating piece 200 and the second mounting piece 300 are connected through the cavity wall of the cavity 610 to form a discharge cavity 330; the discharge cavity 330 is arranged in the cavity 610; and the first mounting piece 100 and the second mounting piece 300 are made of conductive material.

[0043] The electrostatic discharge mechanism is arranged in the cavity 610 of the grounding mechanism 600, the first insulating piece 200 of the electrostatic discharge mechanism is located between the first mounting piece 100 and the grounding mechanism 600, and the first insulating piece 200 is connected with the first mounting piece 100 and the grounding mechanism 600 respectively, so as to insulate the first mounting piece 100 and the grounding mechanism 600. The second mounting piece 300 is connected with the cavity wall of the cavity 610, so as to form the discharge cavity 330 between the second mounting piece 300, the first mounting piece 100, the first insulating piece 200 and the cavity wall of the cavity 610. The core 710 of the cable 700 can pass through the first mounting hole 110, the discharge cavity 330 and the second mounting hole 311 in sequence and extend into the cavity 610 of the grounding mechanism 600, and the metal shielding layer 720 on the outer circumferential surface of the core 710 of the cable 700 is located in the discharge cavity 330 and connected with the first mounting piece 100. Because the second mounting piece 300 and the first mounting piece 100 are made of metal material, there is a capacitive effect between the second mounting piece 300 and the first mounting piece 100, the charge on the first mounting piece 100 can be transmitted to the second mounting piece 300 through the discharge cavity 330, and the second mounting piece 300 is connected with the grounding mechanism 600, so that the charge is transmitted to the grounding mechanism 600 for discharge. The electrostatic discharge mechanism provided by the application does not need to be provided with a safety capacitor for discharge, and the charge discharge can be realized through the mechanical structure, that is, there is no direct contact between the first mounting piece 100 and the second mounting piece 300 and between the first mounting piece 100 and the grounding mechanism 600, and the transmission of the charge can be realized through the discharge cavity 330, which meets the safety requirements and electromagnetic compatibility requirements in medical equipment. Compared with the existing electrostatic discharge by using a safety capacitor with a lead, the application discharges high-frequency energy of static electricity through the distributed capacitance of the mechanical structure itself, improves the flexibility of design adjustment, and can also realize continuous adjustment of the capacitance value of the device by adjusting the size of the parts, which is more flexible than the fixed-gear capacitor.

[0044] In the art, the cable 700 includes a wire core 710 and a metal shielding layer 720, the metal shielding layer 720 is wrapped on the outer circumferential surface of the wire core 710 and is arranged around the circumference of the wire core 710.

[0045] It should be noted that, as shown in Figures 1 to 5 The second mounting hole 311 is arranged concentrically with the first mounting hole 110, that is, the axis of the first mounting hole 110 coincides with the axis of the second mounting hole 311. By making the axis of the first mounting hole 110 coincide with the axis of the second mounting hole 311, it is convenient for the cable 700 to pass through.

[0046] In some embodiments, as shown in Figures 1 to 5 The wire core 710 of the cable 700 is configured to pass through the first mounting hole 110, the discharge cavity 330 and the second mounting hole 311 in sequence, the radial size of the first mounting hole 110 is greater than the radial size of the second mounting hole 311, and the part of the metal shielding layer 720 wrapped on the wire core 710 is located in the discharge cavity 330 and connected to the first mounting member 100. The cable 700 includes a first end and a second end, the first end is connected to the to-be-discharged mechanism 500, the to-be-discharged mechanism 500 transmits electric charge to the cable 700, the second end of the cable 700 is configured to extend into the first mounting hole 110, and the wire core 710 of the second end continues to pass through the second mounting hole 311 and extend into the cavity 610 of the grounding mechanism 600, while the metal shielding layer 720 wrapped outside the wire core 710 of the second end is located in the discharge cavity 330 and connected to the first mounting member 100, so as to transmit the electric charge on the cable 700 to the first mounting member 100, and then to the grounding mechanism 600 through the discharge cavity 330 and the second mounting member 300. When the cable 700 passes through the electrostatic discharge mechanism, the second end of the cable 700 as a whole passes through the first mounting hole 110, that is, the wire core 710 and the metal shielding layer 720 of the second end of the cable 700 pass through the first mounting hole 110, then the metal shielding layer 720 of the second end is in the discharge cavity 330, and the wire core 710 of the second end continues to pass through the second mounting hole 311, so when passing through the first mounting hole 110, the overall size of the cable 700 is large, so the aperture of the first mounting hole 110 is larger than the aperture of the second mounting hole 311, which is convenient for the cable 700 to pass through.

[0047] In some embodiments, as shown in Figures 1 to 5 The second mounting member 300 includes a main body part 310 and a connecting part 320 arranged at an angle, the connecting part 320 is arranged around the main body part 310, the main body part 310 is provided with the second mounting hole 311, and the connecting part 320 is used for connecting to the cavity wall of the cavity 610. The second mounting hole 311 is arranged on the main body part 310, and the main body part 310 is connected to the cavity wall of the cavity 610 of the grounding mechanism 600 through the connecting part 320.

[0048] Specifically, asFigures 1 to 5 As shown in FIG. 1, the included angle between the main body 310 and the connecting portion 320 is 90°.

[0049] In other embodiments, the included angle between the main body 310 and the connecting portion 320 can be any angle, as long as the two ends of the connecting portion 320 are connected to the main body 310 and the cavity wall of the cavity 610 of the grounding mechanism 600, respectively, for example, the included angle between the main body 310 and the connecting portion 320 is 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, and 70°.

[0050] In some embodiments, as shown in FIG. 1, the first insulating member 200 is located between the first mounting member 100 and the grounding mechanism 600, and is used to connect and insulate the first mounting member 100 and the grounding mechanism 600. Figures 1 to 5 By arranging the first insulating member 200 to connect and insulate the first mounting member 100 and the grounding mechanism 600.

[0051] In a specific embodiment, as shown in FIG. 1, the first mounting member 100 is in the shape of a cuboid, the first insulating member 200 is in the shape of a hollow cuboid, the first insulating member 200 is sleeved on the first mounting member 100, and the dimension of the first insulating member 200 along the axial direction of the first mounting hole 110 is greater than or equal to the dimension of the first mounting member 100 along the axial direction. Figure 2 Figure 3 By arranging the first mounting member 100 to be in the shape of a cuboid, the first insulating member 200 to be in the shape of a hollow cuboid, the first insulating member 200 to be sleeved on the first mounting member 100, and the dimension of the first insulating member 200 along the axial direction of the first mounting hole 110 to be greater than or equal to the dimension of the first mounting member 100 along the axial direction of the first mounting hole 110, the first insulating member 200 completely wraps the first mounting member 100, and the end of the first insulating member 200 away from the first mounting member 100 is connected to the grounding mechanism 600, thereby indirectly connecting and insulating the first mounting member 100 and the grounding mechanism 600.

[0052] More specifically, as shown in FIG. 1, the first insulating member 200 is sleeved on the first mounting member 100, and the inner wall of the first insulating member 200 is attached to the outer wall of the first mounting member 100. Figure 2 Figure 3 By arranging the first insulating member 200 to be sleeved on the first mounting member 100, and the inner wall of the first insulating member 200 to be attached to the outer wall of the first mounting member 100.

[0053] In a specific embodiment, as shown in FIG. 1, the first mounting member 100 is in the shape of a cuboid, the first insulating member 200 is in the shape of a hollow cuboid, the first insulating member 200 is sleeved on the first mounting member 100, and the dimension of the first insulating member 200 along the axial direction of the first mounting hole 110 is greater than or equal to the dimension of the first mounting member 100 along the axial direction. Figure 4 ​​As shown, the first mounting member 100 is disc-shaped, and the first insulating member 200 is annular. The first insulating member 200 is sleeved on the first mounting member 100, and the axial dimension of the first insulating member 200 along the first mounting hole 110 is greater than or equal to the axial dimension of the first mounting member 100. By setting the first mounting member 100 as disc-shaped and the first insulating member 200 as annular, and by sleeved on the first mounting member 100, and by setting the axial dimension of the first insulating member 200 along the first mounting hole 110 to be greater than or equal to the axial dimension of the first mounting member 100 along the first mounting hole 110, the first insulating member 200 completely encloses the first mounting member 100. The end of the first insulating member 200 facing away from the first mounting member 100 is connected to the grounding mechanism 600, which not only indirectly connects the first mounting member 100 and the grounding mechanism 600, but also insulates the first mounting member 100 and the grounding mechanism 600.

[0054] In some embodiments, such as Figure 5 As shown, the static discharge mechanism also includes a second insulating member 400, which is disposed within the discharge cavity 330. By providing the second insulating member 400 within the discharge cavity 330, electrical connection between the first mounting member 100 and the second mounting member 300 is prevented.

[0055] Specifically, the second insulating element 400 can be glass or mica.

[0056] This application also provides a medical device, such as Figure 1 As shown, the device includes a discharge mechanism 500, a grounding mechanism 600, a cable 700, and the aforementioned static discharge mechanism. The static discharge mechanism is connected to the grounding mechanism 600. The first end of the cable 700 is electrically connected to the discharge mechanism 500. The core 710 of the second end of the cable 700 passes through the first mounting hole 110, the discharge cavity 330, and the second mounting hole 311 in sequence and extends into the cavity 610 of the grounding mechanism 600. The metal shielding layer 720 wrapped around the core 710 at the second end is located in the discharge cavity 330 and is connected to the first mounting member 100.

[0057] First, the first insulation 200 of the static electricity discharging mechanism is connected to the grounding mechanism 600, and the second installation 300 of the static electricity discharging mechanism is connected to the cavity wall of the cavity 610 of the grounding mechanism 600, so as to install the static electricity discharging mechanism in the cavity 610 of the grounding mechanism 600, then the first end of the cable 700 is connected to the to-be-discharged mechanism 500, the second end of the cable 700 passes through the first installation hole 110, the core 710 of the second end continues to pass through the second installation hole 311 and extends into the cavity 610, the metal shielding layer 720 of the second end is in the discharging cavity 330 and is connected to the first installation 100, so as to transmit the static electricity of the to-be-discharged mechanism 500 to the first installation 100, and because the second installation 300 and the first installation 100 are made of metal materials, there is a capacitive effect between the second installation 300 and the first installation 100, the charge on the first installation 100 is transmitted to the second installation 300 through the discharging cavity 330, and the second installation 300 is connected to the grounding mechanism 600, so that the charge is transmitted to the grounding mechanism 600 and is discharged.

[0058] Specifically, the grounding mechanism 600 is made of metal material. Because the first end of the cable 700 is connected to the to-be-discharged mechanism 500, and the metal shielding layer 720 of the second end of the cable 700 is in the discharging cavity 330 and is connected to the first installation 100, the charge on the cable 700 is transmitted to the first installation 100. Because the first installation 100 and the second installation 300 are made of conductive materials, the discharging cavity 330 has a capacitive effect, and the charge on the first installation 100 can be transmitted to the second installation 300 through the discharging cavity 330. The second installation 300 is connected to the grounding mechanism 600, and the grounding mechanism 600 is made of metal material, so that the charge on the second installation 300 is transmitted to the grounding mechanism 600, thereby completing the static electricity discharge of the to-be-discharged mechanism 500.

[0059] In some embodiments, as shown in Figure 1 The metal shielding layer 720 of the second end is provided with a curled edge portion, the curled edge portion is arranged around the circumference of the cable 700 and extends towards the first insulation 200. By providing the curled edge portion on the metal shielding layer 720 of the second end, the metal shielding layer 720 of the second end and the first installation 100 are facilitated to be connected.

[0060] In some embodiments, as shown in Figure 1 The grounding mechanism 600 is provided with a through hole communicating the cavity 610 with the outside, and the first insulation 200 is connected to the hole wall of the through hole. By providing the through hole, the cavity 610 is communicated with the outside, and the first insulation 200 and the first installation 100 are located in the through hole, and the first insulation 200 is connected to the hole wall of the through hole, so as to realize the connection between the first installation 100 and the grounding mechanism 600.

[0061] Specifically, as shown in Figure 1 the through hole, the first mounting member 100 and the first insulating member 200 are flush along the end surface in the first direction, wherein the first direction is the radial direction.

[0062] In some embodiments, as shown in Figure 1 the medical device further comprises a central processing unit 800 disposed in the cavity 610, and the second end of the wire core 710 is electrically connected to the central processing unit 800. In the cavity 610, the second end of the wire core 710 is connected to the central processing unit 800, and the first end is connected to the to-be-drained mechanism 500, so as to transmit the output detected by the to-be-drained mechanism 500 to the central processing unit 800.

[0063] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0064] The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An electrostatic discharge mechanism disposed within a cavity (610) of a grounding mechanism (600), characterized by, The static electricity discharge mechanism comprises: A first mounting member (100) provided with a first mounting hole (110); A first insulating member (200) connected with the first mounting member (100); A second mounting member (300) provided with a second mounting hole (311); The second mounting hole is concentrically arranged with the first mounting hole (110), and the edges of the first insulating member (200) and the second mounting member (300) are connected with the cavity wall of the cavity (610) to form a discharge cavity (330); the discharge cavity (330) is arranged in the cavity (610); the first mounting member (100) and the second mounting member (300) are made of conductive material; Further comprising a second insulating member (400) arranged in the discharge cavity (330); The core (710) of the cable (700) is configured to pass through the first mounting hole (110), the discharge cavity (330) and the second mounting hole (311) in sequence, the radial size of the first mounting hole (110) is greater than the radial size of the second mounting hole (311), and the metal shielding layer (720) wrapped on the core (710) is partially located in the discharge cavity (330) and connected to the first mounting member (100); The first insulating member (200) is located between the first mounting member (100) and the grounding mechanism (600), and the first insulating member (200) is connected to the first mounting member (100) and the grounding mechanism (600) respectively; the second mounting member (300) is connected with the grounding mechanism (600).

2. The electrostatic discharge mechanism of claim 1, wherein, The second mounting member (300) comprises a main body part (310) and a connecting part (320) arranged at an angle, the connecting part (320) is arranged around the main body part (310), the main body part (310) is provided with the second mounting hole (311), and the connecting part (320) is used for connecting the cavity wall of the cavity (610).

3. The electrostatic discharge mechanism of claim 1, wherein, The first mounting member (100) is in the shape of a cuboid, the first insulating member (200) is in the shape of a hollow cuboid, the first insulating member (200) is sleeved on the first mounting member (100), and the size of the first insulating member (200) in the axial direction of the first mounting hole (110) is greater than or equal to the size of the first mounting member (100) in the axial direction.

4. The electrostatic discharge mechanism of claim 1, wherein, The first mounting member (100) is in the shape of a disc, the first insulating member (200) is in the shape of a ring, the first insulating member (200) is sleeved on the first mounting member (100), and the size of the first insulating member (200) in the axial direction of the first mounting hole (110) is greater than or equal to the size of the first mounting member (100) in the axial direction.

5. A medical device, characterized by The static electricity discharge device comprises a to-be-discharged mechanism (500), a grounding mechanism (600), a cable (700), and the static electricity discharge device of any one of claims 1-4, the static electricity discharge device is connected to the grounding mechanism (600), a first end of the cable (700) is electrically connected to the to-be-discharged mechanism (500), a core (710) of a second end of the cable (700) sequentially passes through the first mounting hole (110), the discharge cavity (330), and the second mounting hole (311) and extends into a cavity (610) of the grounding mechanism (600), a metal shielding layer (720) wrapped on the core (710) of the second end is located in the discharge cavity (330) and is connected to the first mounting member (100).

6. The medical device of claim 5, wherein, An edge-rolling part is arranged on the metal shielding layer (720) of the second end, the edge-rolling part is arranged around the circumference of the cable (700) and extends towards the first insulating member (200).

7. The medical device of claim 5, wherein, The grounding mechanism (600) is provided with a through hole communicating the cavity (610) with the outside, and the first insulating member (200) is connected to the hole wall of the through hole.

8. The medical device of claim 5, wherein, A central processing unit (800) arranged in the cavity (610) is further included, and the core (710) of the second end is electrically connected to the central processing unit (800).

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