CN212546879U

CN212546879U - Head end seat, connection structure of head end seat and image transmission assembly and electronic endoscope

Info

Publication number: CN212546879U
Application number: CN202020555736.6U
Authority: CN
Inventors: 李�杰; 邓安鹏
Original assignee: Chongqing Jinshan Medical Technology Research Institute Co Ltd
Current assignee: Chongqing Jinshan Medical Technology Research Institute Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-02-19
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a head end seat, head end seat and biography connection structure and electronic endoscope of image subassembly, wherein, be equipped with on the head end seat and pass image subassembly mounting hole, pass image subassembly mounting hole including the first pore that is used for fixed biography image subassembly, be used for holding the second pore that passes image subassembly circuit board, be equipped with a step hole on the second pore, be fixed with the cavity shield cover that can cover in the step hole and pass image subassembly circuit board. In the head end seat of the utility model, the shielding cover which can cover the image transmission component circuit board can effectively shield the influence of external electromagnetic interference on the image quality of the image transmission component; the utility model discloses in the connection structure of head end seat and biography image subassembly, the mode that shield cover and head end seat, adapter sleeve pass through terminal surface laminating and conducting resin bonding guarantees that shield cover and adapter sleeve can realize effectual ground connection and handle to can make and pass the external electromagnetic interference of shielding that image subassembly can be fine.

Description

Head end seat, connection structure of head end seat and image transmission assembly and electronic endoscope

Technical Field

The utility model relates to an electronic endoscope field especially relates to a connection structure and electronic endoscope of head end seat, head end seat and biography image subassembly.

Background

The micro high-resolution camera is arranged in the head end part of the electronic endoscope, so that when a doctor uses the electronic endoscope to examine a patient, whether stomach tissues of the patient are diseased or not can be effectively observed through the micro high-resolution camera arranged in the head end part of the electronic endoscope, and the micro high-resolution camera is used for assisting gastrointestinal endoscopy examination, gastrointestinal endoscope operation treatment and early cancer screening. Meanwhile, doctors can also check the gastrointestinal tissue condition of patients in real time through the electronic endoscope system in the operation process, and the electronic endoscope system is widely applied to digestive system professionals of all levels of medical institutions at present.

According to the using function and the using environment of the existing electronic endoscope body, when a doctor carries out pathological examination or surgical treatment on the intestines and the stomach of a patient, a slender inserting part needs to be controlled to be inserted into a body cavity, and real-time image information in the cavity is acquired through an image transmission assembly arranged at the head end part of the endoscope body. When a focus in a cavity of a patient is found to need surgical treatment, the focus in the cavity is treated by a high-frequency electrotome along a surgical instrument channel through the surgical instrument channel in the endoscope body of the electronic endoscope.

Because can produce electromagnetic radiation in the high frequency electrotome use, and current biography image subassembly circuit board passes through circuit board shell parcel fixed, the circuit board shell adopts stainless steel material to make usually and forms, has only played the connection fixed action, can not effectual shielding external electromagnetic interference, and electromagnetic radiation can disturb the quality that biography image subassembly gathered the transmission image, leads to the image unclear, the picture quality is poor, finally will directly influence the doctor and use, further influences the accurate judgement of doctor's operation in-process.

Therefore, those skilled in the art are devoted to develop an anti-electromagnetic interference head end base, a connecting structure of the head end base and the image transmission assembly and an electronic endoscope.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved in the present invention is to provide an anti-electromagnetic interference head end seat, a connection structure of the head end seat and an image transmission assembly, and an electronic endoscope.

In order to realize the above object, the utility model provides a head end seat, be equipped with on the head end seat and pass like the subassembly mounting hole, pass like the subassembly mounting hole including the first pore that is used for fixed biography like the subassembly, be used for holding the second pore that passes like the subassembly circuit board, be equipped with a step hole on the second pore, be fixed with the cavity shield cover that can cover and pass like the subassembly circuit board in the step hole.

In order to prevent the welding spots of the electronic signal wires of the image transmission assembly and the circuit board of the image transmission assembly from loosening in the using process so as to further influence the image quality, one end of the shielding cover is fixedly provided with a connecting sleeve which is fixedly connected with the electronic signal wires of the image transmission assembly.

Preferably, the inner diameter of the connecting sleeve is larger than the outer diameter of the electronic signal wire of the image transmission assembly, one end of the connecting sleeve extends into the shielding case and is bonded on the inner circumferential surface of the shielding case through conductive glue, and the other end of the connecting sleeve is provided with a fixing hole for bonding with the electronic signal wire of the image transmission assembly.

In order to limit the axial direction of the shielding cover, the end face of the other end of the shielding cover is attached to the step face of the step hole, an annular boss protruding outwards along the radial direction of the connecting sleeve is arranged on the outer peripheral face of the connecting sleeve, and the annular boss is attached to the end face of one end of the shielding cover.

Preferably, the shielding case is bonded in the stepped hole by conductive adhesive.

In order to further improve the bonding strength, an arc glue overflow groove is arranged in the step hole.

In order to avoid interference between the shielding case and the image transmission assembly circuit board, the inner diameter of the shielding case is larger than the aperture of the second hole.

Preferably, the shielding case is made of an anti-electromagnetic interference material.

The utility model also provides a connection structure of head end seat and biography image subassembly, including foretell head end seat, biography image subassembly, pass image subassembly fixed mounting in first pore, pass image subassembly circuit board and be located in the second pore, pass image subassembly electronic signal line with adapter sleeve fixed connection.

The utility model also provides an electronic endoscope, including foretell head end seat and biography image subassembly's connection structure.

The utility model has the advantages that: in the head end seat of the utility model, the shielding cover which can cover the image transmission component circuit board can effectively shield the influence of external electromagnetic interference on the image quality of the image transmission component; the utility model discloses in the connection structure of head end seat and biography image subassembly, the mode that shield cover and head end seat, adapter sleeve pass through terminal surface laminating and conducting resin bonding guarantees that shield cover and adapter sleeve can realize effectual ground connection and handle to can make and pass the external electromagnetic interference of shielding that image subassembly can be fine.

Drawings

Fig. 1 is a schematic structural view of a head end seat according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a shield cover in a head end base according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of the connection sleeve in the head end seat according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a connection structure of a head end seat and an image transmission assembly according to an embodiment of the present invention.

Fig. 5 is a sectional view of a connection structure of a head end base and an image transmission assembly according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, in a head end socket, an image transmission component mounting hole 101 is formed on a head end socket 100, the image transmission component mounting hole 101 includes a first hole 1011 for fixing an image transmission component 400 and a second hole 1012 for accommodating an image transmission component circuit board 401, a step hole is formed on the second hole 1012, and a hollow shielding cover 200 capable of covering the image transmission component circuit board 401 is fixed in the step hole. In this embodiment, the shielding case 200 is made of ferrite, which is an anti-electromagnetic interference material, and has a good effect of suppressing high-frequency noise, the ferrite magnetic ring has different impedance characteristics at different frequencies, and generally has a small impedance at low frequencies, and when the signal frequency increases, the impedance presented by the magnetic ring increases sharply, so that normal and useful signals can pass well, and meanwhile, the passing of high-frequency interference signals can be suppressed; in this embodiment, the second hole 1012 has a shape corresponding to the image transmission member 400 and the circuit board 401 thereof, and may be, for example, a square.

A connecting sleeve 300 fixedly connected with an electronic signal wire 402 of the image transmission component is fixed at one end of the shielding case 200. In this embodiment, the inner diameter of the connecting sleeve 300 is larger than the outer diameter of the image transmission component electronic signal line 402, one end 302 of the connecting sleeve 300 extends into the shielding case 200 and is bonded to the inner circumferential surface 203 of the shielding case 200 through a conductive adhesive, and the other end of the connecting sleeve 300 is provided with a fixing hole 303 for bonding with the image transmission component electronic signal line 402. In this embodiment, the number of the fixing holes 303 is four, and the fixing holes are symmetrically arranged in pairs, so that the electronic signal lines 402 of the image transmission assembly can be conveniently glued and fixed.

The end face 201 of the other end of the shielding cover 200 is attached to the step face of the step hole, an annular boss 301 protruding outwards along the radial direction of the connecting sleeve 300 is arranged on the outer peripheral surface of the connecting sleeve 300, and the annular boss 301 is attached to the end face 202 of one end of the shielding cover 200.

The shield can 200 is bonded in the stepped hole by conductive glue.

An arc glue overflow groove 102 is arranged in the step hole. In this embodiment, the number of the arc glue overflow grooves 102 is four.

The inner diameter of the shield 200 is larger than the bore diameter of the second bore 1012.

As shown in fig. 4 and 5, the head base can be applied to a connection structure of a head base and an image transmission assembly, including the head base 100 and the image transmission assembly 400, the image transmission assembly 400 is fixedly installed in a first duct 1011, the image transmission assembly circuit board 401 is located in a second duct 1012, and the image transmission assembly electronic signal wire 402 is fixedly connected with the connecting sleeve 300.

The connecting structure of the head end seat and the image transmission assembly can be applied to an electronic endoscope.

The end face 202 of one end of the shielding case 200 is attached to the annular boss 301 of the connecting sleeve 300; one end 302 of the connecting sleeve 300 extends into the shielding case 200 and is bonded on the inner circumferential surface 203 of the shielding case 200 through conductive glue; the other end of the connecting sleeve 300 is bonded with the image transmission component electronic signal wire 402 through conductive adhesive; the end surface 201 of the other end of the shielding cover 200 is attached to the step surface of the step hole; the head end seat, the shielding cover and the connecting sleeve are bonded by the end face and the conductive adhesive, so that the shielding cover and the connecting sleeve can be ensured to realize effective grounding treatment, and external electromagnetic interference is shielded.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A head end seat is characterized in that: be equipped with on head end seat (100) and pass like subassembly mounting hole (101), pass like subassembly mounting hole (101) including first pore (1011) that are used for fixed biography like subassembly (400), be used for holding second pore (1012) that pass like subassembly circuit board (401), be equipped with a step hole on second pore (1012), be fixed with cavity shield cover (200) that can cover biography like subassembly circuit board (401) in the step hole.

2. The header base of claim 1, wherein: and a connecting sleeve (300) fixedly connected with an electronic signal wire (402) of the image transmission assembly is fixed at one end of the shielding case (200).

3. The header base of claim 2, wherein: the inner diameter of the connecting sleeve (300) is larger than the outer diameter of the image transmission component electronic signal wire (402), one end (302) of the connecting sleeve (300) extends into the shielding cover (200) and is bonded on the inner circumferential surface (203) of the shielding cover (200) through conductive glue, and the other end of the connecting sleeve (300) is provided with a fixing hole (303) for being bonded with the image transmission component electronic signal wire (402).

4. The head end mount of claim 3 wherein: the other end terminal surface (201) of shield cover (200) with the step face laminating in step hole, be equipped with on the outer peripheral face of adapter sleeve (300) along its radial outside bellied annular boss (301), annular boss (301) with the one end terminal surface (202) laminating of shield cover (200).

5. The header base of claim 1, wherein: the shielding cover (200) is bonded in the stepped hole through conductive glue.

6. The header base of claim 5, wherein: an arc glue overflow groove (102) is arranged in the step hole.

7. The header base of claim 1, wherein: the shield (200) has an inner diameter greater than the bore diameter of the second bore (1012).

8. The header base of claim 1, wherein: the shielding case (200) is made of an anti-electromagnetic interference material.

9. A kind of head end seat and image transmission assembly linkage, its characteristic is: the head end base (100) and the image transmission component (400) according to any one of claims 1 to 8 are included, the image transmission component (400) is fixedly mounted in the first duct (1011), the image transmission component circuit board (401) is located in the second duct (1012), and the image transmission component electronic signal wire (402) is fixedly connected with the connecting sleeve (300).

10. An electronic endoscope, characterized by: a connection structure comprising the head mount and the image-transmitting assembly as claimed in claim 9.