CN115153389A - Composite wire harness and endoscope - Google Patents

Abstract

The invention discloses a composite wire harness and an endoscope. The composite wire harness is used for an endoscope, the endoscope includes an insertion tube, the composite wire harness includes a composite tube, an incoming wire connector and an outgoing wire connector, and the composite tube has The incoming wire end and the outgoing wire end, the incoming wire end and the outgoing wire end are connected and form a wiring space; the incoming wire connector is fixed on the incoming wire end, the incoming wire connector is fixed on the incoming wire end, and the main body of the incoming wire head is provided with A wire hole communicated with the wiring space, the wire inlet connector is provided with a cable inlet and an optical cable inlet respectively connected to the wire hole; the outlet wire connector is fixed on the outlet end and connected with the insertion tube, the outlet connector A wire passage connecting the wire routing space is provided; the cable and the optical cable enter the wire routing space from the cable entrance and the optical cable entrance respectively, and are inserted into the insertion tube through the wire passage passage. The technical solution of the present invention aims to avoid the entanglement and knotting of the endoscope during use, and to improve the operation efficiency and the cleaning efficiency.

Description

Composite Harnesses and Endoscopes

technical field

The invention relates to the technical field of medical devices, in particular to a composite wire harness and an endoscope using the composite wire harness.

Background technique

An endoscope is an optical instrument that is sent from outside the body through the natural cavities of the human body into the body to realize visual inspection and treatment of the internal cavities of the internal organs. The endoscope includes an insertion tube and a lens assembly arranged at the end of the insertion tube, and the external equipment realizes the light guiding and electrical signal transmission functions of the lens assembly through light guides and electrical signal lines respectively. In the existing solution, the light guide 1 and the electrical signal line 2 are separately wired, and are respectively inserted inside the insertion tube 3 at the end of the hand-held end of the insertion tube 3 . In this way, when medical staff use the endoscope, the two wire harnesses are prone to entanglement and knotting, resulting in low operation efficiency. At the same time, it is also necessary to clean and sterilize the two wire harnesses respectively, which increases the workload of the sterilization process and the difficulty and high workload of cleaning.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a composite wire harness and an endoscope, aiming at avoiding the entanglement and knotting of the endoscope during use, and improving the operation efficiency and cleaning efficiency.

In order to achieve the above object, the composite wire harness proposed by the present invention is used in an endoscope, the endoscope includes an insertion tube, and the composite wire harness includes:

a composite pipe, the composite pipe has an incoming wire end and an outgoing wire end, and the incoming wire end and the outgoing wire end are connected and form a wire routing space;

Incoming line connector, the incoming line connector is fixed on the incoming line end, the main body of the incoming line head is provided with a wire-passing hole communicating with the wiring space, and the incoming line connector is provided with the wire-passing holes respectively connected cable entries and fiber optic cable entries; and

an outlet connector, the outlet connector is fixed on the outlet end and connected to the insertion tube, and the outlet connector is provided with a wire passage that communicates with the wiring space;

The cable and the optical cable respectively enter the wiring space from the cable entry and the optical cable entry, and are inserted into the insertion tube through the cable passage.

In an embodiment of the present invention, the wire inlet connector includes a wire inlet head body, the wire inlet head body is provided with the cable inlet and the optical cable inlet, and the wire inlet head body is further provided with the cable routing space Connected wire holes, the cable inlet, the optical cable inlet and the wire hole can be detachably connected with a snap head, and each snap head respectively connects the cable, the optical cable and the the composite tube is secured to the main body of the feeder; and

A first sealing sheath, the first sealing sheath is wrapped on the surface of the main body of the wire inlet, and the first sealing sheath is sealed against the outer surfaces of the cable, the optical cable and the composite tube respectively. catch.

In an embodiment of the present invention, at least a part of the outer part of the cable is peeled at the cable entrance, and at least part of the outer part of the optical cable is stripped at the optical cable entrance, so that each of the The snap-fit head fixes the cable, the shielding layer of the optical cable and the main body of the wire feeder.

In an embodiment of the present invention, the wire-passing hole and the optical cable inlet are respectively located at two ends of the main body of the wire inlet in the length direction, and the cable inlet and the optical cable inlet are arranged independently of each other.

In an embodiment of the present invention, the central axis of the wire-passing hole and the central axis of the optical cable entry are arranged co-linearly, and the central axis of the cable entry and the central axis of the optical cable entry are arranged at an included angle; The wire diameter of the cable is smaller than the wire diameter of the optical cable;

The distance between the optical cable entry and the cable entry is greater than 3 mm.

In an embodiment of the present invention, the cross section of the composite tube is oval, and the cable and the optical cable are accommodated side by side in the wiring space;

Or, the cross section of the composite tube is circular, the inner wall of the composite tube is provided with a total shielding layer, the cable is peeled in the wiring space, and the core wires of the cable are arranged around the optical cable the periphery.

In an embodiment of the present invention, the outlet connector includes:

The main body of the wire outlet, the wire passages run through the two end faces of the wire outlet in the long direction, the end of the main body of the wire outlet close to the wire inlet connector is also provided with a fixing hole connected to the wire passage, at least part of the outgoing wires The end is inserted into the wire passage, and the composite pipe passes through the fixing hole through the connecting piece and abuts with the surface of the composite pipe to be fixed with the main body of the wire outlet; and

a second sealing sheath, the second sealing sheath is wrapped around the end of the main body of the outlet head close to the inlet connector, and is in sealing contact with the outer surface of the composite pipe;

One end of the wire passage away from the wire inlet connector is sealed with glue.

In an embodiment of the present invention, the size of the cross-section of the wire passage channel gradually increases from the end close to the incoming wire connector toward the end away from the incoming wire connector.

In an embodiment of the present invention, the outlet connector further includes:

A fixing ring, the fixing ring is arranged in the wire passage, the outer ring of the fixing ring is in contact with the inner wall surface of the wire passage, and the cable and the optical cable pass through the inner wall of the fixing ring. The loop passes through and out of the wire passage.

In an embodiment of the present invention, the outlet connector further includes:

An insulating pad is provided between the outer peripheral surface of the composite pipe and the inner wall surface of the wire passage.

In an embodiment of the present invention, a connection boss is provided on the outer peripheral surface of the main body of the outlet head, and the outlet connector further includes a connection cap, and the connection cap is clamped on the connection boss and faces the inlet connector. The surface of the connecting cap is used for fixed connection with the insertion tube.

In an embodiment of the present invention, the outlet connector further includes a sealing ring, an inner wall surface of the connecting cap is provided with a sealing groove, and the sealing ring is arranged in the sealing groove;

And/or, the outlet connector further includes a gasket, and the gasket is provided between the connection cap and the connection boss.

In an embodiment of the present invention, the composite wire harness further includes a circuit board, the circuit board is fixed in the wire passage, the cable is connected to the circuit board in the wire passage, and the circuit board At least part of the structure of the cable also extends out of the wire passage to connect with the electrical signal interface of the insertion tube, and the braided shielding layer of the cable is also connected to the outlet connector;

The optical cable is connected to the optical interface at the end of the insertion tube through the wire passage.

The present invention also provides an endoscope, the endoscope includes an insertion tube and the composite wire harness, and the composite wire harness includes:

a composite pipe, the composite pipe has an incoming wire end and an outgoing wire end, and the incoming wire end and the outgoing wire end are connected and form a wire routing space;

an inlet connector, the inlet connector is fixed on the inlet end, and the inlet connector is provided with a cable inlet and an optical cable inlet respectively communicating with the wiring space; and

an outlet connector, the outlet connector is fixed on the outlet end and connected to the insertion tube, and the outlet connector is provided with a wire passage that communicates with the wiring space;

The cable and the optical cable respectively enter the wiring space from the cable entry and the optical cable entry, and are inserted into the insertion tube through the cable passage.

The composite wire harness of the technical solution of the present invention is used for an endoscope. The composite wire harness includes a composite tube, an incoming wire connector and an outgoing wire connector. The wire connector and the outgoing wire connector are respectively connected to the incoming wire end and the outgoing wire end of the composite tube. The cable inlet and the optical cable inlet of the wire connector enter the wiring space, and are inserted into the insertion tube through the wire passage of the outlet connector. Since the cable and the optical cable have been integrated into a whole through the composite wire harness between the insertion tube, when the endoscope is used, the cable and the optical cable are prevented from being entangled and knotted on the outside of the insertion tube, and the operation efficiency is improved. At the same time, when cleaning, only the composite wire harness needs to be cleaned, which reduces the difficulty of cleaning and improves the efficiency of cleaning.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an endoscope in the prior art.

2 is a schematic structural diagram of an embodiment of the composite wire harness of the present invention;

Figure 3 is a cross-sectional view of the inlet connector of Figure 2;

FIG. 4 is a schematic structural diagram of an embodiment of the composite pipe in FIG. 2;

5 is a schematic structural diagram of another embodiment of the composite pipe in FIG. 2;

FIG. 6 is a cross-sectional view of the outlet connector of FIG. 2;

FIG. 7 is a cross-sectional view of the optical interface of FIG. 2 .

Description of reference numbers:

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In addition, descriptions such as "first", "second", etc. in the present invention are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" appearing in the whole text includes three parallel schemes, and taking "A and/or B as an example", it includes scheme A, scheme B, or scheme that A and B satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

The present invention provides a composite wire harness 100 .

2, the composite wire harness 100 proposed by the present invention is used in an endoscope (not shown), the endoscope includes an insertion tube (not shown), and the composite wire harness 100 includes:

The composite pipe 10, the composite pipe 10 has an incoming wire end (not indicated) and an outgoing wire end (not indicated), the incoming wire end and the outgoing wire end are connected and form a wiring space (not indicated);

Incoming line connector 20, the incoming line connector 20 is fixed on the incoming line end, the main body 21 of the incoming line connector is also provided with a wire passage hole 215 which communicates with the wiring space, and the incoming wire connector 20 is provided with a cable inlet 211 and fiber optic cable entry 213; and

Outgoing wire connector 30, the outgoing wire connector 30 is fixed on the outgoing wire end and connected with the insertion tube, and the outgoing wire connector 30 is provided with a wire passage 311 which communicates with the wiring space;

The cable 70 and the optical cable 60 enter the wiring space from the cable inlet 211 and the optical cable inlet 213 respectively, and are inserted into the insertion tube through the cable passage 311 .

The composite wire harness 100 of the technical solution of the present invention is used for an endoscope. The composite wire harness 100 includes a composite tube 10 , a wire inlet connector 20 and an outlet wire connector 30 , and the wire connector and the wire outlet connector 30 are respectively connected to the wire inlet end and the wire outlet end of the composite tube 10 . , the cable 70 and the optical cable 60 respectively enter the wiring space from the cable inlet 211 and the optical cable inlet 213 of the inlet connector 20 , and are inserted into the insertion tube through the cable passage 311 of the outlet connector 30 . Since the cable 70 and the optical cable 60 have been integrated into a whole through the composite wire harness 100 between the insertion tube, when the endoscope is used, the cable 70 and the optical cable 60 will be entangled and knotted on the outside of the insertion tube, and the lifting operation will be avoided. efficiency. At the same time, when cleaning, only the composite wire harness 100 needs to be cleaned, which reduces the difficulty of cleaning and improves the efficiency of cleaning.

In an embodiment of the present invention, one end of the optical cable 60 is connected to the cold light source device, and one end of the optical cable 60 close to the insertion tube is interconnected with the light source interface inside the endoscope device through the optical interface 40, so as to be realized as a lens module of the endoscope. Group light guide.

The optical cable 60 includes an outer quilt 61 , an armor 63 , a middle quilt 65 , and a light guide 67 which are arranged in sequence from the outside to the inside. Among them, the outer quilt 61 is the outer insulating protective layer of the light guide 67; the armor 63 can prevent the light guide 67 from being damaged and failed under the action of external force; the middle quilt 65 is arranged between the light guide 67 and the armor 63, which is an insulating buffer medium , the middle quilt 65 has a beam line effect on the light guide 67; the light guide 67 collects a plurality of fiber light guide wires made of glass or plastic into a bundle, so as to achieve the purpose of light guide; when the optical cable 60 penetrates into the endoscope. , the outer coat 61 and the armor 63 of the light guide 67 will be peeled off.

One end of the cable 70 is provided with an aviation head interface, one end of the cable 70 is connected with the video processing display device, and one end of the cable 70 close to the insertion tube is interconnected with the electrical signal interface inside the endoscope device through a power signal interface and a high-speed signal interface, In order to realize the power supply for the lens module of the endoscope. The cable 70 includes a jacket 71 , a braided shielding layer 73 and a core wire 75 arranged in sequence from the outside to the inside, wherein the core wire 75 includes an electronic wire 751 and a video signal wire 753 . The outer quilt 71 of the cable 70 and the outer quilt 61 of the optical cable 60 are of the same material and function, both of which are outer insulating protective layers. The braided shielding layer 73 is an electromagnetic shielding structure of the electronic wire 751; the core wire 75 is used for electrical signal transmission. When the cable 70 is passed into the endoscope, the outer covering 71 of the cable 70 will be peeled and removed.

The composite wire harness 100 realizes the integration of the optical cable 60 and the cable 70 of the endoscope into a whole before entering the insertion tube through the composite tube 10, the inlet connector 20 and the outlet connector 30, which optimizes the optical cable 60 and the cable 70 before entering the insertion tube. The best wiring method, when medical staff operate the endoscope by hand, only one composite wire harness 100 is deeply inserted into the tube, which avoids the occurrence of entanglement and knots on the outside of the insertion tube for the optical cables 60 and 70 that are separately wired, and improves the operation. convenience.

In one embodiment, when the optical cable 60 and the cable 70 are fixedly connected to the incoming connector 20 , they can be fixed by means of tight fitting; in other embodiments, when the optical cable 60 and the cable 70 are fixedly connected to the incoming connector 20 , the optical cable 60 and the cable 70 can be peeled off at the fixed place of the incoming wire connector 20 , so as to realize the firm connection between the optical cable 60 and the cable 70 and the incoming wire connector 20 .

3, in an embodiment of the present invention, the wire inlet connector 20 includes a wire inlet head body 21, and the wire inlet head main body 21 is provided with a cable inlet 211 and an optical cable inlet 213. The cable inlet 211, the optical cable inlet 213 and the wire hole 215 are all Removably connected with snap heads 23, each snap head 23 respectively fixes the cable, the optical cable 60 and the composite tube 10 with the main body 21 of the wire feeder; and

The first sealing sheath 25 is wrapped around the surface of the main body 21 of the cable feeder, and the first sealing sheath 25 is in sealing contact with the outer surfaces of the cable 70 , the optical cable 60 and the composite tube 10 respectively.

In a technical solution implemented in the present invention, the cable entry 211 and the optical cable entry 213 are set independently of each other, that is, the cable entry 211 and the optical cable entry 213 are two different interfaces respectively, the main body 21 of the cable entry head has a three-way structure, the cable 70 and the optical cable 60 respectively protrudes into the main body 21 of the cable head through two different interfaces, so that the cable inlet 211 and the optical cable inlet 213 can be sealed respectively, so as to improve the reliability of the sealing.

The cable passage hole 215 and the optical cable entrance 213 are located at both ends of the main body 21 in the length direction, so that the optical cable 60 can be prevented from being damaged by excessive bending when the main body 21 is fixed. The cable inlet 211 is perpendicular to the length direction of the main body 21 of the cable entry head, so it is also convenient for the wiring of the optical cable 60 and the cable 70 before entering the main body 21 of the cable entry head, so that the optical cable 60 and the cable 70 are respectively connected with the cold light source device and the video processing device. . The main body 21 of the wire feeder is a metal part to enhance the strength of its structure. Each engaging head 23 and the main body 21 of the cable feeder can be connected by a threaded structure, or can be connected by a buckle.

Please continue to refer to FIG. 3 , in an embodiment of the present invention, the central axis of the cable hole 213 and the central axis of the optical cable inlet 213 are arranged in a collinear manner, and the central axis of the cable inlet 211 and the central axis of the optical cable inlet 213 form an included angle setting; the wire diameter of the cable 70 is smaller than the wire diameter of the optical cable 60; the distance between the optical cable inlet 213 and the cable inlet 211 is greater than 3 mm.

In the technical solution of an embodiment, the included angle between the cable entry 211 and the optical cable entry 213 is greater than 0 degrees and less than 180 degrees, and the central axes of the cable entry 211 and the optical cable entry 213 can both be set horizontally, or the cable entry 211 The central axis is arranged vertically, the central axis of the optical cable inlet 213 is arranged horizontally, and so on. The wire diameter of the cable 70 is smaller than the wire diameter of the optical fiber cable 60 .

The wire hole 213 and the optical cable inlet 213 are respectively located at both ends of the main body 21 in the length direction, and the central axis of the wire hole 213 and the central axis of the optical cable inlet 213 are arranged collinearly. This arrangement can prevent the optical cable 60 from transmitting radiation When the main body 21 of the wire feeder is fixed, it may be damaged due to excessive bending. The wire diameter of the cable 70 is smaller than the wire diameter of the optical cable 60 . Thus, after the cable 70 and the optical cable 60 converge, the offset between the central axis of the optical cable 60 and the wire hole 213 is reduced, and the bending degree of the optical cable 60 is reduced. The distance between the optical cable entry 213 and the cable entry 211 refers to the minimum distance between the optical cable entry 213 and the cable entry 211 in the hollow structure inside the main body 21 of the cable entry head, and the distance can be 3mm, 5mm, 8mm, 10mm, 15mm, 20mm, etc. By setting the minimum distance between the optical cable entrance 213 and the cable entrance 211 to be greater than 3 mm, it is possible to reduce the excessive bending of the optical cable 60 when the optical cable 60 and the cable 70 converge, and prevent the optical cable 60 from being damaged due to excessive bending. It can be understood that the greater the minimum distance between the optical cable entry 213 and the cable entry 211, the smaller the degree of bending of the optical cable 60 is.

In one embodiment, when the snap head 23 and the main body 21 of the wire feeder are connected by a threaded structure, at this time, the outer parts of the cable 70 and the optical cable 60 can be peeled off, so that the shielding layer of each wire is exposed. During the thread locking process, the shielding layer of the wire can also be squeezed to realize the pressing and fixing of the shielding layer and the main body 21 of the wire feeder.

Each engaging head 23 can be formed by injection molding, and the outer surface of the engaging head 23 is formed with a plurality of grooves or convex structures arranged at intervals, and the grooves or convex structures can elevate the engaging head 23 and the first sealing sheath. 25 bond strengths. The first sealing sheath 25 can be made by injection molding or rubber vulcanization process, and has elasticity. The shape of the first sealing sheath 25 is roughly similar to that of the main body 21 of the wire inlet, the first sealing sheath 25 is also formed into a tee structure similar in structure to the main body 21 of the wire inlet, and the inner diameter of each opening of the first sealing sheath 25 is the same. It is smaller than the outer diameter of the cable 70, the optical cable 60 and the composite tube 10, so that the first sealing sheath 25 can be tightly attached to the surface of the cable 70, the optical cable 60 and the composite tube 10, so that it has good sealing and waterproofing. performance.

4 and 5, in an embodiment of the present invention, the cross section of the composite tube 10 is oval, the cable 70 and the optical cable 60 are accommodated side by side in the wiring space, or the cross section of the composite tube 10 is circular , the inner wall surface of the composite tube 10 is provided with a general shielding layer 11 and the cable 70 is shelled in the routing space.

In one embodiment of the present invention, the cross section of the composite tube 10 can have various shapes. For example, the cross section of the composite tube 10 is oval. At this time, the composite tube 10 is flat. At this time, the cable 70 and the optical cable 60 can be accommodated side by side in the wiring space, which is beneficial to the flat design of the composite wire harness 100 . When the cross section of the composite tube 10 is oval, the cable 70 does not need to be shelled in the wiring space.

In one embodiment, when the cross section of the composite tube 10 is circular, the outer jacket 61 and the braided shield of the cable 70 are peeled off. The running spaces are scattered, and at this time, each core wire 75 in the cable 70 can be arranged around the outer circumference of the optical cable 60 , thereby reducing the cross-sectional size of the composite tube 10 . Since the outer jacket 71 and the braided shield of the cable 70 are peeled off, a general shielding layer 11 needs to be provided on the inner wall of the composite tube 10 to wrap the peeled cable 70 to achieve electrical signal shielding.

6, in an embodiment of the present invention, the outlet connector 30 includes:

The main body 31 of the outlet head, the wire passage 311 runs through both ends of the wire outlet in the longitudinal direction, the end of the main body 31 of the wire outlet close to the inlet connector 20 is also provided with a fixing hole 313 connected to the wire passage 311, at least part of the outlet end is inserted into the wire In the channel 311, the composite pipe 10 passes through the fixing hole 313 through the connecting piece and abuts with the surface of the composite pipe 10, so as to be fixed with the main body 31 of the wire outlet; and

The second sealing sheath 34, the second sealing sheath 34 is wrapped around the end of the main body 31 of the outlet head close to the inlet connector 20, and is in sealing contact with the outer surface of the composite pipe 10;

One end of the wire passage 311 away from the wire inlet connector 20 is sealed with glue.

In the technical solution of an embodiment of the present invention, the main body 31 of the outlet head is a metal part, so as to enhance the strength of the structure. The main body 31 of the wire outlet is generally in the form of a cylinder, and the wire passage 311 penetrates through two oppositely disposed end faces of the main body 31 of the wire outlet. The size of the cross section of the wire passage 311 gradually increases from the end close to the incoming wire joint 20 to the end far from the incoming wire joint 20, and the cross section size of the end of the wire passage 311 close to the incoming wire joint 20 is smaller, so as to facilitate the composite pipe 10 fit. The inner diameter of one end of the wire passage 311 away from the wire inlet connector 20 is relatively large, so that the cable 70 and the optical cable 60 can move independently through the wire passage 311 . The main body 31 of the wire outlet is provided with a fixing hole 313 connected to the wire channel 311 , and connecting parts such as screws and pins pass through the fixing hole 313 and abut the surface of the composite pipe 10 to realize the fixing of the composite pipe 10 . By means of screw locking, the reliability of the connection between the composite pipe 10 and the main body 31 of the outlet head is improved.

In one embodiment, an insulating pad 33 may also be provided between the outer peripheral surface of the composite pipe 10 and the inner wall surface of the wire passage 311. The composite pipe 10 is prevented from being damaged by being squeezed by the connector. At the same time, the insulating pad 33 also improves the reliability of the connection between the composite pipe 10 and the main body 31 of the outlet head.

The second sealing sheath 34 can be made by injection molding or rubber vulcanization process, and has elasticity. The second sealing sheath 34 is installed in a sleeve, and the opening of the second sealing sheath 34 is smaller than the outer diameter of the composite pipe 10, so that the second sealing sheath 34 can be tightly attached to the surface of the composite pipe 10, so that the It has good sealing and waterproof performance. In addition, due to the elasticity of the second sealing sheath 34, the composite pipe 10 can also be protected against bending and torsion. The end of the main body 31 of the outgoing wire away from the incoming wire connector 20 is filled with potting glue, and is sealed with a potting element, which can improve the waterproof performance.

Please continue to refer to FIG. 6 , in an embodiment of the present invention, the outlet connector 30 further includes: a fixing ring 32 , the fixing ring 32 is arranged in the wire passage 311 , the outer ring of the fixing ring 32 and the inner wall surface of the wire passage 311 Abutting, the cable 70 and the optical cable 60 pass through the inner ring of the fixing ring 32 and extend out of the wire channel 311 .

In the technical solution of an embodiment of the present invention, the fixing ring 32 is a magnetic ring. On the one hand, the magnetic ring can improve the reliability of the cable 70 and the optical cable 60 in the cable passage 311, and on the other hand, the magnetic ring can also realize the signal filtering to improve the high-speed transmission performance of the cable 70 .

6 , in one embodiment, the composite wire harness 100 further includes a circuit board 80 , the circuit board 80 is fixed in the wire passage 311 , the cable is connected to the circuit board 80 in the wire passage 311 , and at least part of the structure of the circuit board 80 It also protrudes from the outside of the wire channel 311 to connect with the electrical signal interface of the insertion tube, and the braided shielding layer of the cable is also connected to the wire outlet connector 30 .

The circuit board 80 can transfer high-speed signals and low-frequency signals from the wires to the PCB board, so as to facilitate the conversion of signals. A board-end connector is installed on the outside of the circuit board 80 at the protruding part, so that the circuit board 80 can be fixed, and the connection with the electrical signal interface in the insertion tube can be facilitated.

The cable 70 extends into the wire passage 311 after passing through the fixing ring 32 , and is welded to the circuit board 80 in the wire passage 311 . The welded end of the cable 70 and the circuit board 80 is peeled off, and the braided shielding layer 73 of the cable 70 is also connected to the main body 31 of the cable outlet through the OT terminal to further shield and protect the electronic signal. In addition, the braided shielding layer 73 of the cable 70 can also be connected to the main body 31 of the outlet head by turning it back or wrapping the copper foil, and then locking by screws or by crimping. The braided shielding layer 73 of the cable 70 is fixedly connected to the main body 31 of the outlet head, which can shield external components from interference to electrical signals, and at the same time improve the reliability of the connection between the cable and the main body 31 of the outlet head.

Please continue to refer to FIG. 6 , in an embodiment of the present invention, a connection boss 315 is provided on the outer peripheral surface of the main body 31 of the outlet head, and the outlet connector 30 further includes a connection cap 35 , and the connection cap 35 is clamped on the connection boss 315 toward the inlet. On the surface of the wire connector 20, the connection cap 35 is used for fixed connection with the insertion tube.

In the technical solution of an embodiment of the present invention, the connection boss 315 on the outer peripheral surface of the outlet head body 31 is an integral structure with the outlet body, and the connection cap 35 is fixed to the outlet head body 31 through the connection boss 315 . By providing the connection cap 35, it is also convenient for the outlet connector 30 to be fixedly connected to the insertion tube.

In an embodiment of the present invention, the outlet joint 30 further includes a sealing ring 36, the inner wall surface of the connection cap 35 is provided with a sealing groove 351, and the sealing ring 36 is arranged in the sealing groove 351; the outlet joint 30 further includes a gasket 37, the gasket The piece 37 is provided between the connecting cap 35 and the connecting boss 315 .

In the technical solution of an embodiment of the present invention, the number of the sealing ring 36 may be one or multiple. When a plurality of sealing rings 36 are provided, the plurality of sealing rings 36 are arranged at intervals. The sealing ring 36 can be arranged on the sealing ring 36 to be fixed by the sealing groove 351 , and the sealing ring 36 is used to improve the sealing and waterproof performance of the outlet connector 30 and the plug-in connection.

In the technical solution of an embodiment of the present invention, by providing a gasket 37 between the connecting cap 35 and the connecting boss 315, the gasket 37 can improve the reliability of the connection between the connecting cap 35 and the main body 31 of the wire outlet, The rigidity of the connection between the main body 31 of the wire outlet and the connecting cap 35 can also be avoided, so as to improve the service life.

Referring to FIG. 7 , in an embodiment of the present invention, after the optical cable 60 is passed through the splice, it is quickly connected to the interface inside the endoscope through the optical interface 40 . The optical interface 40 includes a connecting shell 41 and a locking cap 43 . The connecting shell 41 is provided with a through hole 411 , and the optical cable 60 is peeled and passed through the through hole 411 , and the locking cap 43 is connected to the end of the connecting shell 41 away from the outlet connector 30 . , and sealed by potting conductive glue. The optical interface 40 also includes a cap 47 that is similar in structure to the connection cap 35 in the outlet connector 30 , and the structure of the cap 47 will not be repeated here. Further, in order to improve the feeling of use, a reed 45 is also provided between the connecting cap and the connecting shell 41 .

The present invention also provides an endoscope, which includes an insertion tube and a composite wire harness 100. The specific structure of the composite wire harness 100 refers to the above-mentioned embodiments. Since the endoscope adopts all the technical solutions of all the above-mentioned embodiments, Therefore, there are at least all the beneficial effects brought about by the technical solutions of the above embodiments, which are not repeated here. Wherein, the lens of the endoscope is arranged at one end of the insertion tube away from the composite wire harness 100 .

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the description and drawings of the present invention, or directly/indirectly applied to other All relevant technical fields are included in the scope of patent protection of the present invention.

Claims (14)

1. A composite harness for an endoscope, the endoscope including an insertion tube, the composite harness comprising:

the composite pipe is provided with a wire inlet end and a wire outlet end, and the wire inlet end is communicated with the wire outlet end to form a wiring space;

the wire inlet joint is fixed at the wire inlet end, a wire passing hole communicated with the wire running space is formed in the wire inlet head main body, and a cable inlet and an optical cable inlet which are respectively communicated with the wire passing hole are formed in the wire inlet joint; and

the outlet joint is fixed at the outlet end and connected with the insert pipe, and is provided with a wire passing channel communicated with the wiring space;

the cable and the optical cable respectively enter the wiring space from the cable inlet and the optical cable inlet and are inserted into the insertion pipe through the wire passing channel.

2. The composite harness of claim 1, wherein said service joint comprises a service head body, said service head body having said cable inlet and said cable inlet, said cable inlet and said wire passage hole being removably connectable with snap heads, each of said snap heads respectively securing said cable, said cable and said composite tube to said service head body; and

the first sealing sheath is wrapped on the surface of the wire inlet head main body and is in sealing butt joint with the outer surfaces of the cable, the optical cable and the composite pipe respectively.

3. The composite bundle of claim 2 wherein at least a portion of the outer portion of said cable is stripped at said cable entry location and at least a portion of the outer portion of said fiber optic cable is stripped at said cable entry location such that each of said snap-fit heads secures said cable, said shielding of said fiber optic cable and said header body.

4. The composite harness of claim 1, wherein said wire passage hole and said cable entry are located at respective ends of said wire inlet body in a length direction, said cable entry and said cable entry being independently located from each other.

5. The composite harness of claim 4, wherein a central axis of the wire passing hole is collinear with a central axis of the cable inlet, and the central axis of the cable inlet is disposed at an included angle with the central axis of the cable inlet; the wire diameter of the cable is smaller than that of the optical cable;

the distance between the cable inlet and the cable inlet is greater than 3mm.

6. The composite harness of claim 1, wherein the composite tube has an oval cross-section, the cable and the optical cable being housed side-by-side in the routing space;

or the cross section of the composite pipe is circular, a total shielding layer is arranged on the inner wall surface of the composite pipe, the cable is subjected to shelling treatment in a wiring space, and all core wires of the cable are annularly arranged on the periphery of the optical cable.

7. The composite harness of any of claims 1 to 6, wherein the outlet fitting comprises:

the wire outlet head body is provided with a fixing hole communicated with the wire passing channel at one end close to the wire inlet connector, at least part of the wire outlet end is inserted into the wire passing channel, and the composite pipe passes through the fixing hole through a connecting piece and is abutted against the surface of the composite pipe so as to be fixed with the wire outlet head body; and

the second sealing sheath wraps one end, close to the wire inlet joint, of the wire outlet head main body and is in sealing abutting joint with the outer surface of the composite pipe;

and one end of the wire passing channel, which is far away from the wire inlet connector, is sealed by glue pouring.

8. The composite bundle of claim 7 wherein said cross-sectional dimension of said wire passage increases from an end proximate said service coupling to an end distal from said service coupling.

9. The composite harness of claim 7, wherein the outlet fitting further comprises:

the fixing ring is arranged in the wire passing channel, the outer ring of the fixing ring is abutted to the inner wall surface of the wire passing channel, and the cable and the optical cable penetrate through the inner ring of the fixing ring and extend out of the wire passing channel.

10. The composite harness of claim 7, wherein the outlet connector further comprises:

and the insulating pad is arranged between the peripheral surface of the composite pipe and the inner wall surface of the wire passing channel.

11. The composite harness as claimed in claim 7, wherein the outlet head body has a connection boss on its outer peripheral surface, the outlet joint further comprising a connection cap retained on a surface of the connection boss facing the inlet joint, the connection cap being adapted to be fixedly connected to the insert tube.

12. The composite wire harness of claim 11, wherein the outlet connection further comprises a sealing ring, wherein a sealing groove is formed in an inner wall surface of the connecting cap, and the sealing ring is disposed in the sealing groove;

and/or, the outlet joint further comprises a gasket, and the gasket is arranged between the connecting cap and the connecting boss.

13. The composite harness of claim 1, further comprising a circuit board, wherein the circuit board is secured within the conduit channel, wherein the cable is connected to the circuit board within the conduit channel, wherein at least a portion of the structure of the circuit board extends outside of the conduit channel for connection to an electrical signal interface of the insert tube, and wherein the braided shield of the cable is further connected to the outlet connector;

the optical cable passes through the wire passing channel to be connected with the optical interface at the end part of the inserting pipe.

14. An endoscope, characterized in that it comprises an insertion tube and a composite wire harness according to any one of claims 1 to 13.

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