Anti-interference medical connector

Abstract

The anti-interference medical connector comprises a male socket and a female socket, a ceramic seat body is arranged in the female socket, the center of the front end face of the ceramic seat body is provided with a high-voltage convex seat, the periphery of the ceramic seat body is provided with a low-voltage ring seat, and a fastening ring groove is formed between the high-voltage convex seat and the low-voltage ring seat; a protruding protection cylinder is arranged on the periphery of the front end face of the male socket, the low-voltage ring seat is sleeved with the protection cylinder, an inner core cylinder is arranged on the periphery of the high-voltage needle set, and the inner core cylinder is inserted and embedded in the fastening ring groove. Through a dual-connection structure that the protective cylinder is sleeved with the low-voltage ring seat and the inner core cylinder is inserted into the fastening ring groove, and rigid support of a ceramic material is combined, so that the axial stress of insertion and extraction is uniform, and the vibration resistance is improved by more than 50%.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an anti-interference medical connector. Background Technology

[0002] Medical connectors do indeed require interference immunity in certain applications, with specific requirements depending on the usage environment and functional needs. For example, in electrocardiogram (ECG), electroencephalogram (EEG), or implantable devices (such as pacemakers), the signals are weak (in the microvolt range) and susceptible to electromagnetic interference (EMI). Connectors must shield against external interference (such as radio frequency and power supply noise) to ensure signal accuracy.

[0003] Existing medical connectors also possess certain anti-interference capabilities. For example, patent application number "CN201220652935.4" and patent title "A High and Low Voltage Anti-Interference Connector" describes a connector structure that includes a male socket with pins and a female socket with holes. The pins include high-voltage pins and low-voltage pins, and the holes include high-voltage holes and low-voltage holes corresponding to the high-voltage and low-voltage pins, respectively. The male socket has a raised rib positioned between the high-voltage and low-voltage pins, and the female socket has a corresponding groove positioned between the high-voltage and low-voltage holes. This connector separates the high and low voltage circuits and provides a raised rib and groove between the high and low voltage connection points, effectively reducing the possibility of creepage between high and low voltage circuits and forming a safer connection circuit.

[0004] However, this type of anti-interference connector still has shortcomings such as insufficient anti-interference performance and poor connection stability between the male and female connectors, so it is necessary to improve it. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-interference medical connector, improve the anti-interference performance of the connector and the connection stability of the male and female sockets, and further improve the accuracy of signal transmission.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an anti-interference medical connector, comprising a male socket and a female socket, wherein the female socket has a ceramic base inside, and a high-voltage boss is provided at the center of the front end face of the ceramic base. The high-voltage boss is cylindrical, and its end face has multiple high-voltage insertion holes; a low-voltage ring seat is provided on the outer periphery of the high-voltage boss, and a fastening ring groove is formed between the low-voltage ring seat and the high-voltage boss. The end face of the low-voltage ring seat has multiple low-voltage insertion holes; the male socket has another ceramic base inside, and the periphery of the front end face of this ceramic base... The device is equipped with a protruding protective cylinder. The inner cavity of the protective cylinder matches the outer contour of the low-pressure ring seat. The protective cylinder is fitted onto the low-pressure ring seat. Multiple low-pressure pins are provided on the periphery of the bottom surface of the protective cylinder. Each low-pressure pin is evenly distributed along the circumference and forms a low-pressure pin group. Each low-pressure pin is inserted into a corresponding low-pressure socket. Multiple high-pressure pins are provided at the center of the bottom surface of the protective cylinder. Each high-pressure pin is also evenly distributed along the circumference and forms a high-pressure pin group. An inner core cylinder is provided on the periphery of the high-pressure pin group. Each high-pressure pin is inserted into a corresponding high-pressure socket. At the same time, the inner core cylinder is embedded in the fastening ring groove.

[0007] In a further technical solution, the thickness of the low-pressure ring seat is 1mm-2.5mm; the thickness of the protective cylinder is 0.5mm-1.5mm.

[0008] In a further technical solution, a base film is provided on the surface of the low-pressure ring seat and the protective cylinder. The base film is formed of plastic material and has a thickness of 20μm-100μm.

[0009] In a further technical solution, the inner walls of the low-voltage socket and the high-voltage socket are respectively provided with tubular electric contact cylinders, and the high-voltage pin and the low-voltage pin respectively contact the corresponding electric contact cylinders.

[0010] In a further technical solution, the outer surface of the ceramic base is covered with a shielding cover, which is fitted onto the outer surface of the ceramic base and the two are securely connected.

[0011] In a further technical solution, the surface of the ceramic base is provided with multiple inner pin holes, each of which is spaced apart along its length; the shielding cover is provided with multiple outer pin holes, each of which corresponds to one of the inner pin holes and is aligned inside and out; a fastening pin is inserted between the outer pin holes and the inner pin holes, and the outer end face of the fastening pin is flush with the outer surface of the shielding cover to achieve a fast connection between the ceramic base and the shielding cover.

[0012] In a further technical solution, the shielding cover includes a shell made of stainless steel, with a thickness of 0.3mm-1mm.

[0013] In a further technical solution, the outer surface of the ceramic base is provided with a limiting cut surface; the shielding shell is bent and formed with a positioning part, and the positioning part matches the limiting cut surface first to achieve circumferential positioning between the shielding shell and the ceramic base.

[0014] In a further technical solution, the outer end face of the protective cylinder of the male socket is recessed with an anti-foolproof groove; the mating surface of the female socket is provided with a protruding anti-foolproof protrusion, which is fitted into the anti-foolproof groove.

[0015] The advantages of this invention compared to the prior art after adopting the above structure are:

[0016] 1. The double connection structure of the protective sleeve connecting to the low-pressure ring seat and the inner core cylinder being inserted into the fastening ring groove, combined with the rigid support of ceramic material, ensures uniform axial force during insertion and extraction, and improves vibration resistance by more than 50%.

[0017] 2. The plastic base film on the surface of the low-pressure ring seat and the protective cylinder can further suppress electrostatic interference and avoid signal drift caused by charge accumulation.

[0018] 3. Through the sockets set by the high-voltage boss and low-voltage ring seat made of ceramic, a ceramic isolation connection structure is formed between each pin, which further reduces the possibility of creepage between high and low voltage and forms a safer connection circuit.

[0019] 4. By covering the ceramic base with a stainless steel shielding shell, an electromagnetic shielding system is formed, which effectively blocks high-frequency electromagnetic interference and ensures the purity of microvolt-level bioelectric signal transmission. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a structural schematic diagram of the female socket in this utility model.

[0023] Figure 3 This is a structural schematic diagram of the male socket in this utility model. Detailed Implementation

[0024] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0025] like Figures 1 to 3As shown, an anti-interference medical connector includes a male socket and a female socket. The female socket has a ceramic base 3 inside. A high-voltage boss 12 protrudes from the center of the front end face of the ceramic base 3. The high-voltage boss 12 is cylindrical and has multiple high-voltage insertion holes 120 on its end face. A low-voltage ring seat 11 protrudes from the outer periphery of the high-voltage boss 12, forming a fastening groove 13 between the low-voltage ring seat 11 and the high-voltage boss 12. The end face of the low-voltage ring seat 11 has multiple low-voltage insertion holes 110. The male socket has another ceramic base 3 inside. A protective sleeve 211 protrudes from the periphery of the front end face of this ceramic base 3. The inner surface of the protective sleeve 211... The outer contour of the cylinder cavity matches that of the low-pressure ring seat 11. The protective cylinder 211 is sleeved on the low-pressure ring seat 11. Multiple low-pressure pins 210 are provided on the periphery of the bottom surface of the protective cylinder 211. Each low-pressure pin 210 is evenly distributed along the circumference and forms a low-pressure pin group. Each low-pressure pin 210 is inserted into the corresponding low-pressure socket 110. Multiple high-pressure pins 220 are provided at the center of the bottom surface of the protective cylinder 211. Each high-pressure pin 220 is also evenly distributed along the circumference and forms a high-pressure pin group. An inner core cylinder 221 is provided on the periphery of the high-pressure pin group. Each high-pressure pin 220 is inserted into the corresponding high-pressure socket 120. At the same time, the inner core cylinder 221 is embedded in the fastening ring groove 13.

[0026] The protective sleeve 211 is sleeved on the low-voltage ring seat 11, and the inner core cylinder 221 is inserted into the fastening ring groove 13. The double connection structure, combined with the rigid support of ceramic material, makes the axial force of insertion and extraction uniform and improves the vibration resistance by more than 50%. Through the high-voltage boss 12 made of ceramic and the insertion hole set in the low-voltage ring seat 11, a ceramic isolation connection structure is formed between each pin, which further reduces the possibility of creepage between high and low voltage and forms a safer connection circuit.

[0027] Specifically, the thickness of the low-pressure ring seat 11 is 1.5 mm; the thickness of the protective cylinder 211 is 1 mm.

[0028] The plastic base film on the surface of the low-voltage ring seat 11 and the protective cylinder 211 can further suppress electrostatic interference and avoid signal drift caused by charge accumulation.

[0029] Specifically, the surfaces of the low-pressure ring seat 11 and the protective cylinder 211 are covered with a base film, which is formed of plastic material and has a thickness of 50 μm.

[0030] Specifically, the inner walls of the low-voltage socket 110 and the high-voltage socket 120 are respectively provided with tubular electric contact cylinders, and the high-voltage pin 220 and the low-voltage pin 210 respectively contact the corresponding electric contact cylinders.

[0031] Specifically, the outer surface of the ceramic base 3 is covered with a shielding shell 31, which is fitted onto the outer surface of the ceramic base 3 and the two are tightly connected.

[0032] Specifically, the surface of the ceramic base 3 is provided with multiple inner pin holes, each of which is spaced apart along its length; the shielding cover 31 is provided with multiple outer pin holes, each of which corresponds to one of the inner pin holes and is aligned inside and out. A fastening pin 32 is inserted between the outer pin holes and the inner pin holes, and the outer end face of the fastening pin 32 is flush with the outer surface of the shielding cover 31 to achieve a fast connection between the ceramic base 3 and the shielding cover 31.

[0033] Specifically, the shielding cover includes a housing made of stainless steel, and the thickness of the shielding cover 31 is 0.8 mm.

[0034] Specifically, the outer surface of the ceramic base 3 is provided with a limiting cut surface; the shielding shell 31 is bent into a positioning part, and the positioning part matches the limiting cut surface first to achieve circumferential positioning between the shielding shell 31 and the ceramic base 3.

[0035] An electromagnetic shielding system is formed by covering the ceramic base 3 with a stainless steel shielding shell 31, which effectively blocks high-frequency electromagnetic interference and ensures the purity of microvolt-level bioelectric signal transmission.

[0036] Specifically, the outer end face of the protective cylinder 211 of the male socket is recessed with an anti-misalignment groove 42; the mating surface of the female socket is provided with a protruding anti-misalignment protrusion 41, which is engaged in the anti-misalignment groove 42. The anti-misalignment structure further prevents misalignment of the male and female sockets in the circumferential direction, avoiding misalignment that could damage the pins or sockets.

[0037] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An anti-interference medical connector, characterized in that: Including male and female sockets, The female socket has a ceramic base (3) inside. A high-voltage boss (12) is provided at the center of the front end face of the ceramic base (3). The high-voltage boss (12) is cylindrical. The end face of the high-voltage boss (12) is provided with multiple high-voltage sockets (120). A low-voltage ring seat (11) is provided on the outer periphery of the high-voltage boss (12). A fastening ring groove (13) is formed between the low-voltage ring seat (11) and the high-voltage boss (12). The end face of the low-voltage ring seat (11) is provided with multiple low-voltage sockets (110). The male socket has an additional ceramic base (3) inside. A protruding protective cylinder (211) is provided around the front end of the ceramic base (3). The inner cavity of the protective cylinder (211) matches the outer contour of the low-pressure ring seat (11). The protective cylinder (211) is fitted onto the low-pressure ring seat (11). Multiple low-pressure pins (210) are provided around the bottom surface of the protective cylinder (211). Each low-pressure pin (210) is evenly distributed along the circumference, forming a low-pressure pin group. Low-voltage pins (210) are respectively inserted into the corresponding low-voltage sockets (110); multiple high-voltage pins (220) are provided at the center of the bottom surface of the protective cylinder (211). Each high-voltage pin (220) is also evenly distributed along the circumference and forms a high-voltage pin group. The periphery of the high-voltage pin group is provided with an inner core cylinder (221). Each high-voltage pin (220) is respectively inserted into the corresponding high-voltage socket (120). At the same time, the inner core cylinder (221) is inserted into the fastening ring groove (13).

2. The anti-interference medical connector according to claim 1, characterized in that: The thickness of the low-pressure ring seat (11) is 1mm-2.5mm; the thickness of the protective cylinder (211) is 0.5mm-1.5mm.

3. The anti-interference medical connector according to claim 2, characterized in that: The surfaces of the low-pressure ring seat (11) and the protective cylinder (211) are covered with a base film, which is formed of plastic material and has a thickness of 20μm-100μm.

4. The anti-interference medical connector according to claim 3, characterized in that: The inner walls of the low-voltage socket (110) and the high-voltage socket (120) are respectively provided with tubular electric contact cylinders, and the high-voltage pin (220) and the low-voltage pin (210) respectively contact the corresponding electric contact cylinders.

5. The anti-interference medical connector according to claim 1, characterized in that: The outer surface of the ceramic base (3) is covered with a shielding shell (31), which is fitted onto the outer surface of the ceramic base (3) and the two are tightly connected.

6. The anti-interference medical connector according to claim 5, characterized in that: The surface of the ceramic base (3) is provided with a plurality of inner pin holes, each of which is spaced apart along its length; the shielding cover (31) is provided with a plurality of outer pin holes, each of which corresponds to one of the inner pin holes and is aligned inside and out. A fastening pin (32) is inserted between the outer pin holes and the inner pin holes, and the outer end face of the fastening pin (32) is flush with the outer surface of the shielding cover (31) to achieve a fast connection between the ceramic base (3) and the shielding cover (31).

7. The anti-interference medical connector according to claim 6, characterized in that: The shielding cover includes a shell made of stainless steel, and the thickness of the shielding cover (31) is 0.3mm-1mm.

8. The anti-interference medical connector according to claim 7, characterized in that: The outer surface of the ceramic base (3) is provided with a limiting cut surface; the shielding shell (31) is bent into a positioning part, and the positioning part matches the limiting cut surface first to realize the circumferential positioning between the shielding shell (31) and the ceramic base (3).

9. The anti-interference medical connector according to claim 1, characterized in that: The outer end face of the protective cylinder (211) of the male socket is provided with a recessed anti-fooling groove (42); the mating surface of the female socket is provided with a protruding anti-fooling protrusion (41), which is fitted into the anti-fooling groove (42).

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