CN219645672U - Insertion part and endoscope - Google Patents

Abstract

The utility model discloses an insertion part and an endoscope, and relates to the technical field of endoscopes. In the insertion portion, the head end seat is an insulating member having an instrument channel formed therein. The snake bone is the metalwork, and its front end cover connects outside the head end seat, and the apparatus passageway subassembly includes metal connecting piece and pincers way pipeline, pincers way pipeline including locating the metal takeover of its front end, and the metal takeover stretches into and is fixed in the apparatus passageway, and the metal takeover passes through metal connecting piece and connects the snake bone to make metal takeover, metal connecting piece and snake bone form the static and release route. Through addding the metal connecting piece, with the metal takeover in the pincers way pipeline and the snake bone electricity of metal switch on to form the static route of releasing, can be when metal takeover and static contact, release static to the snake bone, avoid static to accumulate and produce the magnetic field on the head end seat, thereby reduce the interference to the transmission of the image signal of endoscope, improve the head end seat and be the electromagnetic shield effect of the endoscope of insulating part, promote clinical diagnosis and treat experience.

Description

Insertion part and endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an insertion part and an endoscope with the insertion part.

Background

An endoscope system is a medical device having diagnostic and therapeutic functions, and generally includes an insertion portion, an operation portion, and the like. Medical staff can extend out treatment instruments such as a puncture needle from an instrument channel of a head end seat of the insertion part to perform in-vivo tissue puncture biopsy to obtain deep lesion information of a detected part.

Among them, the endoscope system is used as medical electrical equipment, and is required by the regulations of safety regulations, and the application part has a high dielectric strength requirement on the ground. Dielectric medium refers to a substance with extremely poor conductive performance under normal conditions, dielectric medium strength is an important index for checking electrical insulation, and the dielectric medium strength is considered to ensure good insulation of a circuit to the ground under the condition that external current is subjected to high-voltage penetration. If the endoscope head end seat is made of plastic materials with good insulating property, the requirements of medical equipment safety regulations can be met easily. In particular, for ultrasonic endoscopes, because the ultrasonic mainframe is typically of a direct ground design, the plastic of the head end is more easily insulated from the ultrasonic beam for safety considerations. Thus, the head end mount of many endoscopes is a plastic piece.

In endoscopes having a plastic head end socket, it is often necessary to use a metal nipple as a nipple to connect the nipple with the instrument channel formed in the plastic head end in order to enhance the adhesive effect and avoid puncture by the treatment instrument.

However, the metal connecting pipe is exposed and corresponds to suspended metal, and under the electrostatic environment, static electricity is conducted to the suspended metal and is difficult to normally discharge, a magnetic field is formed, and signal transmission of an endoscope is further interfered.

Therefore, how to improve the electromagnetic shielding effect of the endoscope with the head end seat being an insulating member is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide an insertion portion and an endoscope including the insertion portion, which can improve an electromagnetic shielding effect of an endoscope having a head end base as an insulator.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an insertion portion comprising a head end portion including a head end seat and an instrument channel assembly, and a curved portion including a snake bone; the head end seat is an insulating piece, and an instrument channel is formed in the head end seat; the snake bone is a metal piece, and the front end of the snake bone is sleeved outside the head end seat; the instrument channel assembly comprises a metal connecting piece and a clamp channel pipeline, the clamp channel pipeline comprises a metal connecting pipe arranged at the front end of the clamp channel pipeline, the metal connecting pipe stretches into and is fixed to the instrument channel, and the metal connecting pipe is connected with the snake bone through the metal connecting piece so that the metal connecting pipe, the metal connecting piece and the snake bone form an electrostatic discharge path.

Preferably, the metal connecting piece is in interference fit with the metal connecting pipe, and/or the metal connecting piece is in interference fit with the snake bone.

Preferably, a conductive cloth or a conductive foam is sandwiched between the metal connecting piece and the metal connecting pipe, and/or a conductive cloth or a conductive foam is sandwiched between the metal connecting piece and the snake bone.

Preferably, a connecting channel is further formed in the head end seat, an opening at one end of the connecting channel is communicated with the instrument channel, and an opening at the other end of the connecting channel is positioned on the peripheral surface of the head end seat; the metal connecting piece is arranged in the connecting channel in a penetrating way.

Preferably, the connecting channel is a pin hole extending along a radial direction of the head end seat; the metal connecting piece is a metal pin.

Preferably, two ends of the metal connecting piece are respectively abutted with the snake bone and the metal connecting pipe.

Preferably, a snake bone through hole is formed in the snake bone, and the edge of the outer end of the metal connecting piece is abutted to the hole wall of the snake bone through hole.

Preferably, the metal connector is adhesively secured to the connection channel.

Preferably, the metal connector is a hollow annular structural member.

An endoscope includes an insertion portion as described above.

Preferably, the endoscope is an ultrasonic endoscope, and the head end part further comprises a probe shell and a water sac tube; the probe shell is of an insulating structure, is connected to the front end of the head end seat, and is provided with a water bag channel; the front end of the water bag pipe stretches into and is fixed in the water bag channel, and the part of the water bag pipe stretching into the water bag channel is of an insulating structure.

The utility model provides an insertion portion comprising a head end portion and a bending portion, wherein the head end portion comprises a head end seat and an instrument channel assembly, and the bending portion comprises snake bones. The head end seat is an insulating piece, and an instrument channel is formed in the head end seat. The snake bone is a metal piece, and the front end of the snake bone is sleeved outside the head end seat. The instrument channel assembly comprises a metal connecting piece and a clamp channel pipeline, the clamp channel pipeline comprises a metal connecting pipe arranged at the front end of the clamp channel pipeline, the metal connecting pipe stretches into and is fixed to the instrument channel, and the metal connecting pipe is connected with the snake bone through the metal connecting piece, so that the metal connecting pipe, the metal connecting piece and the snake bone form an electrostatic discharge path.

Through addding the metal connecting piece, electrically switch on the metal takeover in the pincers way pipeline and the snake bone of metal, so as to form the static electricity and release the route, can be when metal takeover and static contact, with static electricity release to the snake bone, avoid static to accumulate on the head end seat and produce the magnetic field, thereby reduce the interference to the transmission of the image signal of endoscope, in addition, in the endoscope, the snake bone still is connected with other metal structure, thereby, metal takeover also is connected with other metal structure that the snake bone is connected in the endoscope, these metal structure that link together can form a shield cover inside the endoscope and carry out electromagnetic shielding, this shield cover specifically can be a complete shield cover that does not ground, when this endoscope is connected with the endoscope host computer, also can make this shield cover link to each other with earth through endoscope host computer, safety rule resistance in proper order, thereby improve the electromagnetic shielding effect of the endoscope that the head end seat is the insulator, promote clinical diagnosis and treat experience.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an ultrasonic endoscope according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of a structure of a head end portion of an embodiment of an insertion portion according to the present utility model;

FIG. 3 is a schematic view of a portion of an embodiment of an insertion portion according to the present utility model;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

fig. 5 is a B-B cross-sectional view of fig. 3.

Reference numerals:

an insertion section 1;

head end 11, head end seat 111, instrument channel 1111, connection channel 1112, instrument channel port 1113, metal connector 112, clamp channel tube 113, metal adapter 1131, clamp channel main tube 1132, probe housing 114, water bladder channel 1141, water bladder channel port 1142, water bladder tube 115, ultrasound transducer 116, light guide window 117, and camera assembly 118;

bending part 12, snake bone 121, snake bone through hole 1211, protective sleeve 122;

an insertion tube 13;

an operation unit 2;

a universal cable 3;

a cable line 4;

an ultrasonic connector 5;

a light guide 6.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The core of the utility model is to provide an insertion part and an endoscope comprising the insertion part, which can improve the electromagnetic shielding effect of the endoscope with the head end seat as an insulating piece.

The insertion part provided by the utility model is applied to an endoscope, and can be any endoscope with an insulated head end seat. The present embodiment is described by taking an example of application to an ultrasonic endoscope as shown in fig. 1, and may be applied to other types of endoscopes in other embodiments.

An ultrasonic endoscope is an electronic endoscope with ultrasonic diagnosis and treatment functions, and an ultrasonic probe is placed at the end of an inner lens and used for carrying out ultrasonic diagnosis on tissues below a body membrane of a detected part. Under the guidance of the ultrasonic image, the puncture needle can extend out of the instrument channel to puncture and biopsy the tissue in the body, so as to obtain the deep lesion information of the examined part. As shown in fig. 1, the ultrasonic endoscope includes an insertion portion 1, an operation portion 2, a light guide portion 6, and an ultrasonic connector 5. The light guide portion 6 is connected to the operation portion 2 through the universal cable 3, and is connected to the ultrasonic connector 5 through the electric cable 4.

The insertion portion 1 is an elongated portion of the ultrasonic endoscope that enters the human body. The insertion part 1 comprises an insertion tube with scales, a bending part 12 capable of swinging in different directions and a hard head end part 11 for feeding back diagnostic information, wherein the head end part 11 integrates functions of illumination, image transmission, ultrasonic transducer, water sac water delivery, forceps instrument control and the like. The optical image transmission assembly can convert optical signals into electric signals, the endoscope processor can provide surface morphology information of the detected part, and the ultrasonic transducer 16 can transmit and receive ultrasonic waves to form an ultrasonic image to provide deep lesion information of the detected part.

As shown in fig. 2, the head end 11 includes a camera assembly 118 and an ultrasonic transducer 116. The photographing assembly 118 includes an objective lens disposed on the head end base 111 and a camera including an optical lens and a chip, specifically a CMOS chip, for converting an optical signal into an electrical signal for further transmission. The ultrasonic transducer 116 may transmit and receive ultrasonic waves, and may convert acoustic signals into electrical signals for further transmission, and specifically, the ultrasonic transducer 116 is disposed on the probe housing 114 of the head end 11, and the surface layer of the ultrasonic transducer 116 is an insulating material. The head end 11 further includes a structure such as an illumination window. For such an endoscope in which the chip and the ultrasonic transducer 116 are both disposed at the head end 11, since there is optical and acoustic signal transmission at the head end 11, the signal transmission is particularly susceptible to the static electricity received by the head end 11, so that the electrostatic discharge of the head end 11 is of great significance to such an endoscope, and the accuracy of the signal transmission of such an endoscope can be improved. Of course, in other embodiments, the chip may be provided at other positions of the endoscope, for example, at the operation section 2.

The operation portion 2 includes a lever for controlling the bending portion 12, a suction structure, an instrument channel entrance, an intelligent key, and the like.

The light guide 6 is connected to the endoscope light source and the processor, and outputs an optical signal to the processor for processing.

The ultrasonic connector 5 is connected with an ultrasonic host, and ultrasonic signals are output to the ultrasonic host for processing.

Next, the insertion portion provided by the present utility model will be specifically described. In the first embodiment, please refer to fig. 1 to 5, which include a head end 11, a bending portion 12 and an insertion tube 13 connected in sequence. The head end 11 includes a head end seat 111 and an instrument channel assembly. The bending portion 12 may be configured to bend in different directions, including specifically the snake bone 121.

The head end seat 111 is an insulating member, specifically a plastic member. An instrument channel 1111 is provided on the head end seat 111.

The snake bone 121 is a common bending component for an endoscope, and is composed of a multi-section metal ring structure with a cutting groove. The front end of the snake bone 121 is sleeved outside the head end seat 111.

The instrument channel assembly includes a metal connector 112 and a crimp channel 113. The clamp channel 113 includes a metal adapter 1131 provided at a front end thereof, the metal adapter 1131 extending into and being fixed to the instrument channel 1111, the metal adapter 1131 being exposed to the head end 11 through an instrument channel 1113 at a front end of the instrument channel 1111. When the related operation is performed after the puncture needle or other instrument passes through the metal adapter 1131, the metal adapter 1131 has a metal structure, so that the puncture needle or other instrument has enough strength to bear the acting force of the instrument under the condition of thinner thickness.

The metal connection tube 1131 is connected with the snake bone 121 through the metal connection piece 112 to form electric conduction, so that the metal connection tube 1131, the metal connection piece 112 and the snake bone 121 form an electrostatic discharge path.

In this embodiment, by adding the metal connecting piece 112 to electrically connect the metal connecting tube 1131 in the clamp channel pipeline 113 with the metal snake bone 121, when the metal connecting tube 1131 is in contact with static electricity, the static electricity can be discharged to the snake bone 121, so that static electricity is prevented from accumulating on the head end seat to generate a magnetic field, and interference of transmission of image signals of an endoscope is reduced.

Further, the metal connecting piece 112 is in interference fit with the metal connecting tube 1131, and the metal connecting piece 112 is in interference fit with the snake bone 121, which means that the metal connecting piece 112 is respectively press fit with the metal connecting tube 1131 and the snake bone 121, so as to improve the reliability of connection. Of course, in other embodiments, the metal connecting piece 112 may be in interference fit with only one of the metal adapter tube 1131 and the snake bone 121, or alternatively, the metal connecting piece 112 may be in contact fit with the metal adapter tube 1131 and the snake bone 121 without being pressed against each other.

Further, a conductive cloth or a conductive foam is further disposed between the metal connection tube 1131 and the metal connection piece 112, and a conductive cloth or a conductive foam is further disposed between the metal connection piece 112 and the snake bone 121, so that electrical performance conduction between the metal connection tube 1131 and the metal connection piece 112 can be ensured. Specifically, the conductive cloth or conductive foam can be clamped between the metal connecting pipe 1131 and the metal connecting piece 112, and the clamped conductive cloth or conductive foam is used as a compression force transmission structure to realize interference fit between the metal connecting pipe 1131 and the metal connecting piece 112, but is not directly connected with the conductive cloth or conductive foam so as to facilitate disassembly; likewise, the conductive cloth or conductive foam can be clamped between the metal connecting piece 112 and the snake bone 121, and the clamped conductive cloth or conductive foam is used as a compression force transmission structure to realize interference fit between the snake bone 121 and the metal connecting piece 112, but the snake bone 121 and the metal connecting piece 112 are not directly connected with the conductive cloth or conductive foam so as to be convenient to detach. Of course, in other embodiments, welding or other means may be used to ensure good contact between the conductors between the metal nipple 1131 and the metal connector 112, between the metal connector 112 and the snake bone 121.

Further, as shown in fig. 4, a connection channel 1112 is also formed in the head end seat 111, and one end opening of the connection channel 1112 communicates with the instrument channel 1111, and the other end opening is located on the outer peripheral surface of the head end seat 111. The metal connecting piece 112 is arranged in the connecting channel 1112 in a penetrating way, so that the stability and the reliability of the connecting structure of the metal connecting pipe 1131, the metal connecting piece 112 and the snake bone 121 can be improved. In another embodiment, the metal connecting piece 112 is disposed outside the head end seat 111, for example, one end of the metal connecting piece 112 extends into and connects with the metal connecting tube 1131 through the instrument channel 1111, and the other part extends out of the head end seat 111 and connects with the snake bone 121, at this time, the snake bone 121 is deformed such as bending during the use of the device, which may drive the metal connecting piece 111 to swing, and cause the clamp channel 113 to break the hole, so the manner of disposing the connecting channel 1112 is more preferable.

Further, as shown in fig. 4, the connection channel 1112 is a pin hole extending in a radial direction of the head end seat 111 (specifically, may refer to a direction perpendicular to a central axis of the head end seat 111), and the metal connection member 112 is a metal pin. Based on the arrangement of the connection channels 1112 in this direction, the length of the connection channels 1112 can be shortened, and the electrostatic discharge efficiency can be improved. Of course, in embodiments thereof, the connecting channel 1112 may also extend obliquely with respect to the radial direction, and may also be provided as an arcuate or curved channel.

Further, as shown in fig. 4, two ends of the metal connecting piece 112 are respectively abutted against the snake bone 121 and the metal connecting tube 1131, and it is emphasized that the abutting joint herein is that the position on the metal connecting piece 112 connected with the snake bone 121 and the metal connecting tube 1131 is the end of the metal connecting piece 112, so that the risk that the snake bone 121 or the metal connecting tube 1131 is interfered with or punctured by the internal structure of the snake bone 121 or the metal connecting tube 1131 due to the fact that the snake bone 121 or the metal connecting tube 1131 is connected with the metal connecting piece 112 and the redundant part of the metal connecting piece 112 extends into the snake bone 121 or the metal connecting tube 1131 can be avoided. The two members abutted together may be directly contacted to achieve the abutment, or the two members are simultaneously abutted together with the other intermediate member, and the direction of the abutment may be parallel or perpendicular to the extending direction of the metal connector 112.

Further, as shown in fig. 4, the snake bone 121 is provided with a snake bone through hole 1211, and the edge of the outer end of the metal connecting piece 112 is abutted against the hole wall of the snake bone through hole 1211, so that the position of the snake bone 121 is not required to be adjusted when the metal connecting piece 112 is detached, and the disassembly is convenient.

Further, the metal connecting piece 112 is adhered and fixed to the connecting channel 1112, specifically by adhesive or silica gel, so that the assembly is simple and convenient. In other embodiments, the metal connection member 112 may also be fastened to the connection channel 1112.

Further, as shown in fig. 4, the metal connecting member 112 is a hollow annular structural member, and the metal connecting member, particularly a cylindrical ring, in other embodiments, the metal connecting member 112 may be a cube or other special-shaped structure, and is configured into an annular structure by penetrating along the extending direction of the connecting channel 1112. At this time, the two ports of the metal connection member 112 are respectively connected with the snake bone 121 and the metal connection tube 1131, that is, the penetrating direction of the hollow portion of the metal connection member 112 is consistent with the penetrating direction of the connection channel 1112. In the maintenance process, when the metal connecting piece 112 needs to be detached from the head end base 111, the tool is directly extended into the metal connecting piece 112 through the snake bone through hole 1211 on the snake bone 121, the tool can be used for applying force to the metal connecting piece 112 through the hollow part of the metal connecting piece 112 so as to bring the metal connecting piece 112 out of the connecting channel 1112, and the metal connecting piece 112 can be hooked by adopting a hook-shaped tool, so that the metal connecting piece 112 can be detached, and the operation is convenient. Of course, in other embodiments, the metal connecting piece 112 may be a solid structure, for example, a T-shaped pin, the end of which extends out of the snake bone 121 through the snake bone through hole 1211, and the step surface of the T-shaped pin abuts against the outer peripheral surface of the snake bone 121.

Besides the insertion part, the utility model also provides an ultrasonic endoscope, which can be an ultrasonic bronchoscope. The ultrasonic endoscope comprises an insertion part, and the insertion part can be specifically provided in any embodiment, and the beneficial effects can be correspondingly referred to the above embodiments.

Further, as shown in fig. 4, the clamp pipe 113 further includes a clamp main pipe 1132, the clamp main pipe 1132 is of an insulating structure, specifically of a plastic structure, and the clamp main pipe 1132 is connected to the rear end of the metal connecting pipe 1131, so that flexibility of movement of the clamp pipe 113 can be ensured, and weight reduction is facilitated. Optionally, the front end and the rear end of the metal connecting tube 1131 are respectively adhered to the head end seat 111 and the main pipe 1132 of the forceps channel, and specifically, the metal connecting tube 1131 can be adhered by adopting silica gel or an adhesive, so that the assembly is simple and convenient.

Further, in the ultrasonic endoscope to which the insertion portion in the present embodiment is applied, as shown in fig. 5, the head end portion 11 thereof includes a probe housing 114 and a water bag tube 115. The probe housing 114 is an insulating structure, specifically a plastic structure. The probe housing 114 is connected to the front end of the head end base 111, and a water bladder channel 1141 is provided on the probe housing 114. The front end of the water bag tube 115 extends into and is fixed to the water bag channel 1141, and the portion of the water bag tube 115 extending into the water bag channel 1141 is an insulating structure, specifically a plastic structure, and more specifically, the water bag tube 115 is entirely a plastic structure.

That is, in this embodiment, the water bag connection tube of the prior art, which is connected to the water bag channel 1141 directly with the metal in the water bag channel 1141 at the front end of the water bag channel 1141, is eliminated, and the insulating water bag tube 115 is directly connected to the water bag channel 1141, because the water bag channel 1141 is used for supplying water, the tube section extending into the water bag channel 1141 does not need to bear external force during operation, so that the normal use of the tube section is not affected by the change of the material, and meanwhile, the front end of the water bag tube 115 is used as the tube section extending into the water bag channel 1141, so that the exposed suspended metal does not exist at the water bag channel 1141, and the electrostatic influence can be avoided.

Further, the water bladder tube 115 is adhesively secured to the water bladder channel 1141, such as by adhesive bonding, for example, with ease of operation and reliable connection. Of course, in other embodiments, the balloon tube 115 may also be snapped into the balloon channel 1141.

Further, the exposed portion of the head end 11 except the metal adapter 1131 is of an insulating structure, so that on the head end 11, only the portion of the metal adapter 1131 may be affected by static electricity in a static environment, and even if the portion is affected by static electricity, the static electricity can be discharged through the static electricity discharging path, thereby completely avoiding static electricity interference of signals of the head end 11.

In the insertion portion of the embodiment, the head end portion 11 has two pipeline channels, namely a water sac channel 1141 and an instrument channel 1111, a portion of the water sac channel 1141 exposed to the head end portion 11 through the front end of the water sac channel 1141 in the water sac channel 1141 is changed into a plastic water sac tube 115, a portion of the instrument channel 1111 exposed to the head end portion 11 through an instrument port 1113 in the front end of the instrument channel 1111 is still a metal connection tube 1131, the metal connection tube 1131 is exposed to the head end portion 11 of the whole ultrasonic endoscope, however, the metal connection tube 1131 is connected with the snake bone 121 through a metal connecting piece 112, so as to realize an electrical conduction effect, accordingly, the metal connection tube 1131 is also connected with other metal structures connected with the snake bone 121 in the endoscope, the connected metal structures can form a shielding cover inside the endoscope to carry out electromagnetic shielding, the shielding cover can be a complete shielding cover which is not grounded, when the endoscope is connected with the endoscope host, the shielding cover can also be sequentially connected with the host through the endoscope, the safety gauge, thereby the electromagnetic shielding cover can be effectively insulated from the host, and the clinical signal can be effectively transmitted under the premise of improving the performance of the electromagnetic interference.

It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.

The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The insertion section and the ultrasonic endoscope provided by the present utility model are described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (11)

1. An insertion section characterized by comprising a head end (11) and a curved section (12), the head end (11) comprising a head end seat (111) and an instrument channel assembly, the curved section (12) comprising a snake bone (121);

the head end seat (111) is an insulating piece, and an instrument channel (1111) is formed in the head end seat;

the snake bone (121) is a metal piece, and the front end of the snake bone is sleeved outside the head end seat (111);

the instrument channel assembly comprises a metal connecting piece (112) and a clamp channel pipeline (113), the clamp channel pipeline (113) comprises a metal connecting pipe (1131) arranged at the front end of the clamp channel pipeline, the metal connecting pipe (1131) stretches into and is fixed to the instrument channel (1111), the metal connecting pipe (1131) is connected with the snake bone (121) through the metal connecting piece (112), and the metal connecting piece (1131) and the snake bone (121) form an electrostatic discharge path.

2. The insert according to claim 1, characterized in that there is an interference fit between the metal connection piece (112) and the metal nipple (1131) and/or an interference fit between the metal connection piece (112) and the snake bone (121).

3. The insert according to claim 2, characterized in that a conductive cloth or a conductive foam is sandwiched between the metal connection piece (112) and the metal connection tube (1131), and/or a conductive cloth or a conductive foam is sandwiched between the metal connection piece (112) and the snake bone (121).

4. An insertion portion according to any one of claims 1 to 3, wherein a connection passage (1112) is further formed in the head end seat (111), an opening at one end of the connection passage (1112) communicates with the instrument passage (1111), and an opening at the other end is located on an outer peripheral surface of the head end seat (111); the metal connecting piece (112) is arranged in the connecting channel (1112) in a penetrating way.

5. The insert according to claim 4, wherein the connection channel (1112) is a pin hole extending in a radial direction of the head end seat (111); the metal connector (112) is a metal pin.

6. The insert according to claim 5, wherein the ends of the metal connection piece (112) abut against the snake bone (121) and the metal adapter tube (1131), respectively.

7. The insertion portion according to claim 6, wherein a snake bone through hole (1211) is provided in the snake bone (121), and an outer end edge of the metal connecting piece (112) abuts against a wall of the snake bone through hole (1211).

8. The insert of claim 5, wherein the metal connector (112) is adhesively secured to the connection channel (1112).

9. The insert according to claim 8, wherein the metal connection (112) is a hollow annular structural member.

10. An endoscope comprising the insertion portion according to any one of claims 1 to 9.

11. The endoscope of claim 10, characterized in that the endoscope is an ultrasound endoscope, the head end (11) further comprising a probe housing (114) and a water balloon tube (115);

the probe shell (114) is of an insulating structure, the probe shell (114) is connected to the front end of the head end seat (111), and a water sac channel (1141) is arranged on the probe shell (114);

the front end of the water sac tube (115) stretches into and is fixed in the water sac channel (1141), and the part of the water sac tube (115) stretching into the water sac channel (1141) is of an insulating structure.