WO2015024458A1

WO2015024458A1 - Medical endoscope insertion component

Info

Publication number: WO2015024458A1
Application number: PCT/CN2014/083955
Authority: WO
Inventors: 姜泊; 凌代年
Original assignee: Jiang Bo; Ling Dainian
Priority date: 2013-08-20
Filing date: 2014-08-08
Publication date: 2015-02-26
Also published as: CN103417177A; CN103417177B

Abstract

A medical endoscope insertion component, comprising an insertion part (22) provided at the front end of an operating part (24), a bending part (21), a front end part (20), a connecting part (23), and an outer sleeve (1). The insertion part (22) is provided with a support component, a work channel (19), a control cable, and a power signal cable. The support component is configured as a first threaded coil (12). The work channel is a three-in-one channel integrating air/water feed, suction, and biopsy functions. The front end of the control cable runs through the first treaded coil (12) and is connected to the bending part (21). The bending part (21) is provided with a second threaded coil (2) and a fixed barrel. The second threaded coil (2) is fixedly connected at the fixed barrel. The control cable is connected to the fixed barrel. The front end part (20) is provided with a light source camera module and a transparent heat shield (10). The connecting part (23) comprises a removable connecting mechanism (67) used for connecting the operating part (24) and the insertion part (22). The outer sleeve (1) covers the insertion part (22) and the bending part (21). The medical endoscope insertion component prevents cross-contamination caused by reuse and incomplete sterilization and increases the detection rate for relevant diseases.

Description

Medical endoscope insertion component

The present invention relates to the field of medical device technology, and in particular to a medical endoscope insertion assembly. Background technique

An endoscope is a commonly used medical instrument composed of an insertion portion, a bending portion, and a front end portion provided at the front end of the operation portion, wherein the insertion portion, the bending portion, and the front end portion are collectively referred to as an insertion tube. The human body's natural tunnel, or a small incision made through surgery, enters the human body; when inserted, the endoscope's insertion tube is introduced into the pre-examined organ, and the changes in the relevant part can be directly observed.

The endoscope is a kind of delicate medical equipment. The domestic medical endoscope market is mostly occupied by foreign products, and the price ranges from tens of thousands to hundreds of thousands. After each use, complicated and high-cost disinfection and maintenance are required. There may be cross-infection due to non-standard disinfection procedures. The conventional endoscope insertion assembly is provided with an air supply/water supply passage, a suction passage and a biopsy passage and a control cable, a signal cable, and a light guiding fiber. Slim channels are very difficult to disinfect thoroughly, but because endoscopes are currently expensive to manufacture, they must be reused. It is necessary to improve traditional endoscopes to reduce the risk of cost and cross-contamination.

Later, an independent detachable disposable product appeared, and the Chinese invention patent

"201110056640.0" discloses "a purifying medical endoscope" having the following structure: comprising a soft overall housing of the endoscope, the endoscope soft overall housing is provided with an endoscope main body, and the endoscope main body is The medical resin material encloses the imaging lens assembly, the LED light source, and the optical fiber guide beam, the power supply line, and the signal line, and various passages are provided in the endoscope main body.

The above problems are caused by the following problems: The whole body is made of medical resin or soft material, and has poor rigidity. When used, it does not directly reach the affected part, and has a small bending angle and a narrow application range. The endoscope body and the endoscope's soft overall housing still need to be sterilized and sterilized, which does not achieve a true one-time use.

The Chinese invention patent "200880017615.8" discloses "an endoscope bending portion", the endoscope bending portion including a plurality of node rings having a cylindrical portion and juxtaposed coaxially with each other, and two adjacent node rings One of the node rings has a protrusion extending integrally with the cylindrical portion and extending in a radial direction of the cylindrical portion, and the other of the two adjacent node rings has an integral portion with the cylindrical portion for protrusion The receiving portion that is rotatably inserted around the longitudinal axis of the protruding portion, and each of the nodal rings has a non-joining or joined discontinuous portion that extends in a tubular portion so as to intersect the circumferential direction of the tubular portion.

The endoscope bending portion disclosed in the above invention patent has a complicated structure, high manufacturing difficulty, high production cost, and does not meet the requirements for the production of the disposable endoscope.

Therefore, in view of the existing problems in the prior art, it is urgent to provide a medical endoscope insertion assembly that is simple in structure, low in production cost, and reliable in performance, and is used for a single patient or a single operation process, and then discarded as a whole, realizing the true meaning. One-time use on. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disposable medical endoscope insertion assembly that is simple in construction, low in production cost, and reliable in performance, in view of the deficiencies in the prior art.

Provided is a medical endoscope insertion assembly comprising an insertion portion, a bending portion, a front end portion, a connecting portion and a jacket provided at a front end of the operation portion,

The insertion portion is provided with a support assembly, a working channel, a control cable, and a power signal cable. The support assembly is configured as a first threaded coil, and the working channel is a three-in-one for air supply/water supply, suction, and biopsy. Channel, the front end of the control cable passes through the first threaded coil, and is connected to the curved portion, and the end of the power signal cable passes through the first threaded coil, and is connected to the front end portion, the outer sleeve a lower portion covering the insertion portion;

The bending portion is provided with a second threaded coil and a fixed cylinder, the second threaded coil is fixed to the fixed cylinder, and the working channel is sequentially disposed on the first threaded coil, the second threaded coil and the front end portion. The upper portion of the outer casing covers the second threaded coil; the control cable is fixedly connected to the fixed cylinder; the front end portion is provided with a camera assembly and a transparent heat shield, and the camera assembly is provided with a light source and a camera And the PCB board, the light source and the camera are fixed to the PCB board, the PCB board is fixed to the fixed cylinder, the PCB board is provided with a working channel hole, the working channel hole and the working The outlet of the pipe corresponds to the setting.

An upper end portion of the first threaded coil is fixedly coupled to a lower end portion of the second threaded coil.

The connecting portion includes a detachable connecting mechanism for connecting the operating portion and the insertion portion.

The fixing cylinder is provided with an upper fixing cylinder and a lower fixing cylinder, and the upper fixing cylinder is sleeved on the lower fixing cylinder, and the upper fixing cylinder and the lower fixing cylinder side wall are fixedly connected by bolts, and the lower fixing The cylinder is fixed to the front end of the second threaded coil, and the PCB board is fixed to the upper fixed cylinder.

Wherein, a bending driving unit is disposed, comprising at least four control cables for controlling bending of the second threaded coil and a control ball disposed at an end of the control cable, wherein the lower fixing cylinder is provided with four connecting slots in the circumferential direction, four The control balls at the ends of the control cable are respectively locked in the connecting slots;

When the drive control cable moves along the second threaded coil, the control ball drives the second threaded coil to bend to the side where the control cable is located, and when the drive cable moves to stop, the second threaded coil is bent and stationary. The second threaded coil is reset when the drive cable is unstressed.

Wherein, the first threaded coil is disposed as a first threaded coil of equal pitch, and the second threaded coil is disposed as a second threaded coil having a front end pitch greater than a rear end pitch.

The light source is configured as an LED light source, the camera includes a CMOS sensor and a lens, the lens is fixed to the CMOS sensor, and the CMOS sensor is fixedly connected to the PCB board, and is connected to the PCB board. Signal connection, the lens is set to autofocus lens. The transparent heat shield is disposed in front of the light source, and the lower portion of the transparent heat shield is connected to the upper fixed cylinder, and the outer side of the lower portion of the transparent heat shield is heat-sealed with the outer sleeve. The viewing surface of the transparent heat shield is arranged in an arc shape, and the curved viewing surface forms an insulating cavity between the transparent heat shield and the light source.

Wherein, the first threaded coil and the second threaded coil are heat-sealed and sealed to the outer casing.

Wherein, a working channel is provided with integrated air supply/water supply, suction and biopsy functions, and the working channel is provided with an air supply/water supply interface, a suction interface and a biopsy interface at the input end of the insertion component.

The detachable connection mechanism includes a groove disposed at a front end of the operation portion and a convex groove disposed at the insertion portion, the groove and the convex groove are nested and fitted; the connection portion is provided with a casing, The outer cover is provided as an upper cover and a lower cover, and the upper cover and the lower cover cover the detachable connecting mechanism; the connecting portion is provided with a movable buckle near one end of the operating portion, and the movable buckle is fastened to the outer side of the outer casing; The insertion end of the outer casing is provided with a fixing sleeve, and the fixing sleeve is folded back to cover the upper cover and the lower cover.

The insertion portion is provided with a bending driving unit, the operation portion is provided with a bending driving control unit, the bending driving unit is provided with an upper control cable group, and the bending driving control unit is provided with a corresponding upper control cable group a lower control cable set; a lower end of each control cable of the upper control cable group is provided with a control ball, and a control ball is disposed at an upper end of each control cable of the lower control cable group, The upper end portion of the upper control cable group is connected to the curved portion, the lower end portion of the lower control cable group is connected to the bending drive control unit, and the lower end portion of the upper control cable group and the corresponding lower control cable The upper end of the group is connected by a bead button; the connecting portion is provided with an inner tube connector, a suction connector and a biopsy channel connector, the inner tube connector is connected to the air supply/water supply channel, and the output of the inner tube connector The end is provided with a solenoid valve; the connecting portion is provided with a PCB adapter plate, the PCB adapter plate is provided with a cable interface, and the cable interface is used for transferring the power signal cable of the PCB board, PCB adapter plate is fixed to the inner portion of the plug.

Wherein, the outer sleeve is provided as a jacket made of medical silicone material, and the outer sleeve is provided with a scale indicating the length.

The beneficial effects of the invention:

The variable length threaded coil of the present invention is freely bent by an internally provided bending control unit, and then automatically reset by a variable pitch threaded coil, which is curved compared to the prior art metal joint ring process. The cost is greatly reduced, and at the same time, it has the functions of bending and resetting. The present invention also uses an LED light source, a CMOS camera and a PCB board instead of the prior art light guiding fiber and CCD sensor, so that the manufacturing cost of the inserted component is extremely high. Great reduction.

The invention also uses an inexpensive threaded coil as a support component of the insertion portion, which reduces the manufacturing cost of the insertion portion; the connection portion can completely remove the insertion assembly as a whole, and the insertion assembly can be replaced and discarded after use. The overall cost of the invention is low, the bending effect and the image imaging effect are better, and it is suitable for a single patient or a single operation process, and then discarded as a whole, thereby avoiding the cost of the conventional endoscope sterilization. High, incomplete disinfection leads to cross-contamination and other problems. At the same time, due to the low overall cost, it is suitable for the widespread promotion of major hospitals and primary hospitals, and improves the detection rate of related diseases. DRAWINGS

The invention is further illustrated by the accompanying drawings, but the embodiments of the drawings are not intended to limit the invention.

1 is a schematic view showing the structure of a medical endoscope insertion assembly of the present invention.

Fig. 2 is a view showing the configuration of a front end portion and a bending portion of a medical endoscope insertion unit according to the present invention; and Fig. 3 is a schematic view showing the structure of a connecting portion of a medical endoscope insertion unit of the present invention with a lower cover removed.

In Figure 1, Figure 2, Figure 3, there are:

1 jacket, 2 second threaded coils, 3 light sources, 4 lenses, 5 working channel holes,

6 - upper fixed cylinder, 7 - lower fixed cylinder, 8 - connecting groove, 9 - control ball, 10 - transparent heat shield,

11——PCB board, 12——second threaded coil, 13——upper control cable set, 14——lower control cable set,

15——Bead buckle, 16——wire board, 17——PCB adapter board, 18——active buckle, 19 ―working channel,

20—front end, 21—bend, 22—insert, 23—connect, 24—operating department,

25 - insert assembly, 26 - groove, 27 - convex groove, 28 - adapter cylinder, 29 - inner tube connector,

30 retaining sleeve, 31 suction connector, 32 biopsy channel connector, 33 solenoid valve, 34 – lower cover. detailed description

The invention is further described in detail in conjunction with the following examples.

Example 1

A medical endoscope insertion assembly 25 is shown in Figures 1 and 2. The insertion unit 25 includes an insertion portion 22, a bending portion 21, a front end portion 20, a connecting portion 23, and a jacket 1 which are provided at the front end of the operation portion 24.

The insertion portion 22 is provided with a support assembly, a working channel 19, a control cable, and a power signal cable. The support assembly is configured as a first threaded coil 12. The working channel 19 is a three-in-one channel that integrates air/water supply, suction, and biopsy functions. The front end of the control cable passes through the first threaded coil 12 and is connected to the curved portion 21. The end of the power signal cable passes through the first threaded coil 12, and the front end The part 20 is connected. The working channel 19 is sequentially passed through the first threaded coil 12, the second threaded coil 2 and the front end portion 20. The lower portion of the outer casing 1 covers the insertion portion 22.

The curved portion 21 is provided with a second threaded coil 2 and a fixed barrel, and the second threaded coil 2 is fixed to the fixed barrel. The upper portion of the outer casing 1 encloses the second threaded coil 2, and the control cable is fixedly coupled to the fixed cylinder.

The front end portion 20 is provided with a camera assembly and a transparent heat shield 10, the camera assembly is provided with a light source 3, a camera and a PCB board 11, and the light source 3 and the camera are fixed to the PCB board 11 The PCB board 11 is fixed to the fixed cylinder, and the PCB board 11 is provided with a working channel hole 5, and the working channel hole 5 is disposed corresponding to the outlet of the working channel 19.

An upper end portion of the first threaded coil 12 is fixedly coupled to a lower end portion of the second threaded coil 2. The connecting portion 23 includes a detachable connecting mechanism 67 through which the operating portion 24 and the insertion portion 22 are coupled.

The variable length threaded coil of the present invention is freely bent by an internally provided bending drive unit, and then automatically reset by a variable pitch threaded coil, which is curved compared to the prior art metal joint ring process. The cost is greatly reduced, and at the same time, it has the functions of bending and resetting. The present invention also uses the LED light source 3, the camera and the PCB board 11, instead of the prior art light guiding fiber and CCD sensor, to manufacture the insertion assembly 25. The cost is greatly reduced.

The inexpensive second threaded coil 2 is also used as the support assembly of the insertion portion 22, which reduces the manufacturing cost of the insertion portion 22. The connecting portion 23 can completely remove the insertion assembly 25 as a whole, and can replace the insertion assembly 25 after use. Discard it. The overall cost of the invention is low, the bending effect and the image imaging effect are better, and is suitable for a single patient or a single operation process, and then discarded as a whole, thereby avoiding the problems of high cost of traditional endoscope sterilization, cross-contamination caused by incomplete disinfection, and the like. Due to the low overall cost, it is suitable for the widespread promotion of major hospitals and primary hospitals, and improves the detection rate of related diseases.

The fixing cylinder is provided with an upper fixing cylinder 6 and a lower fixing cylinder 7, and the upper fixing cylinder 6 is sleeved on the lower fixing cylinder 7, and the side walls of the upper fixing cylinder 6 and the lower fixing cylinder 7 are fixed by bolts. The lower fixing cylinder 7 is fixed to the front end of the second threaded coil 2, and the PCB board 11 is fixed to the upper fixing cylinder 6.

The upper fixing cylinder 6 is used for fixing the front end portion 20, and the PCB board 11 is firmly fixed to the upper fixing cylinder 6, so that the light source camera assembly does not sway during use, and the upper fixing cylinder 6 and the lower fixing cylinder 7 are connected by bolts. The fixed cylinder 6 is sleeved on the lower fixed cylinder 7, and the control ball 9 that is locked to the lower fixed cylinder 7 is firmly defined in the connecting groove 8, so as to prevent the control ball 9 from being detached during use.

Wherein, a bending driving unit is disposed, including at least four control cables for controlling bending of the second threaded coil 2 and a control ball disposed at an end of the control cable, wherein the lower fixing cylinder 7 is provided with four connecting slots in the circumferential direction 8. The control balls at the ends of the control cable are respectively disposed in the connecting slot 8; When the drive control cable moves along the second threaded coil 2, the control ball 9 drives the second threaded coil 2 to bend to the side where the control cable is located, and when the drive cable moves to stop, the second threaded coil 2 The bending is stationary, and the second threaded coil 2 is reset when the driving cable is unstressed.

The bending drive unit of the present invention can easily control the bending of the second threaded coil 2, and the bending drive unit of the structure of the present invention has low manufacturing cost and good use effect.

The first threaded coil 12 is disposed as a first threaded coil 12 of equal pitch, and the second threaded coil 2 is disposed as a second threaded coil 2 having a front end pitch greater than a rear end pitch. The second threaded coil 2 of unequal pitch has a good bending effect, and at the same time, it can be automatically reset without being subjected to force, and the effect is good and the manufacturing cost is low.

The first threaded coil 12 and the second threaded coil 2 are heat-sealed and sealed to the outer casing 1. The heat-pressure sealing connection effectively ensures the tightness of the connection, so that the insertion portion 22 and the bending portion 21 can maintain a good sealing effect.

Wherein, the insertion assembly 25 is provided with a working channel 19, which is a three-in-one channel integrated with air supply/water supply, suction and biopsy functions, and the working channel 19 is provided with air supply at the input end of the insertion assembly. Water supply interface, suction interface and biopsy interface. The three-in-one channel saves the diameter of the working channel 19, which reduces the manufacturing cost and has a wider application range.

The second threaded coil 2 is fixedly coupled to the first threaded coil 12 via an adapter cylinder 28.

Example 2:

A medical endoscope insertion assembly 25 of the present invention, as shown in FIG. 1, the main technical solution of the present embodiment is substantially the same as that of the first embodiment, and the features not explained in the embodiment are used in the embodiment 1. The explanation is not repeated here. The difference between this embodiment and Embodiment 1 is that:

The light source 3 is configured as an LED light source 3, the camera includes a CMOS sensor and a lens 4, the lens 4 is fixed to the CMOS sensor, and the CMOS sensor is fixed to the PCB board 11 and the PCB board 11 signal connection, lens 4 is set to autofocus lens 4. The design of LED light source 3 and CMOS sensor replaces the traditional costly light guide fiber and CCD sensor. The traditional light source camera assembly is expensive, the manufacturing cost of tens of thousands of dollars, and the high manufacturing cost greatly hinder the use of endoscope. And the circulation, the design of the present invention greatly reduces the manufacturing cost of the component, and the LED light source 3, the CMOS sensor, and the autofocus lens 4 can clearly collect the information of the affected part and transmit it to the host.

The transparent heat shield 10 is disposed in front of the light source 3, and the lower portion of the transparent heat shield 10 is sleeved on the upper fixed cylinder 6, the lower outer side of the transparent heat shield and the outer sleeve. A thermocompression sealing connection, the viewing surface of the transparent heat shield 10 is arranged in an arc shape, and the curved viewing surface forms an insulating cavity between the transparent heat shield 10 and the light source 3. The observation surface of the transparent heat shield 10 is arranged in an arc shape, and the curved observation surface not only enlarges the range of the viewing distance, but also improves the accuracy of the data collected by the lens 4, and the curved observation field can not scratch the human body, especially It is some easily broken parts. And the transparent heat shield can also increase the line of sight. When the transparent heat shield is closely attached to the affected area, the lens can still clearly collect the image of the affected area.

Example 3:

A medical endoscope insertion assembly 25 of the present invention, as shown in FIG. 3, the main technical solution of the present embodiment is substantially the same as that of Embodiment 1 or Embodiment 2, and features not explained in the present embodiment are used. The explanation in Embodiment 1 or Embodiment 2 will not be described here. The difference between this embodiment and Embodiment 1 or Embodiment 2 is that:

The detachable connecting mechanism 67 includes a groove 26 disposed at the front end of the operating portion 24 and a convex groove 27 disposed at the insertion portion 22, the groove 26 and the convex groove 27 being nested; the connecting mechanism is provided with a casing The outer casing is provided as an upper cover and a lower cover 34, and the upper cover and the lower cover 34 cover the connecting mechanism; the operating portion end of the connecting mechanism is provided with a movable buckle 18, and the movable buckle 18 is fastened to the The upper cover and the lower cover 34 are outside; the insertion end of the outer casing is provided with a fixing sleeve 30, and the fixing sleeve 30 is folded back to cover the upper cover and the lower cover 34.

The insertion portion 24 is provided with a bending drive unit, the operation portion 24 is provided with a bending drive control unit, the bending drive unit is provided with an upper control cable group 13, and the bending drive control unit is provided with corresponding upper control a lower control cable group 14 provided by the cable group; a lower end portion of each control line of the upper control cable group 13 is provided with a control ball 9, and an upper end portion of each control line of the lower control cable group is disposed There is a control ball 9, the upper end of the upper control cable set is connected to the curved portion 21, and the lower end of the lower control cable set 14 is connected to the bending drive control unit, and the lower end of the upper control cable set 13 The upper end portion of the corresponding lower control cable group 14 is connected by the bead waist buckle 15.

Wherein, the air supply/water supply interface, the suction interface and the biopsy interface are respectively connected with the inner tube connector 29, the suction connector 31, and the biopsy channel connector 32, the communication air/water supply channel, and the output end of the inner tube connector 29. A solenoid valve 33 is provided. The connection mechanism is provided with a PCB adapter board 17 , and the PCB adapter board 17 is provided with a cable interface for transferring the power signal cable of the PCB board 11 , and the PCB adapter board 17 It is fixed in the insertion portion 22.

The connecting portion of the present invention is further provided with a lead plate 16, and the lead plate 16 corresponding to the upper control cable group 13 is provided with a wire hole for separating the control cable of the upper control cable group 13 so as not to be entangled.

A detachable connection mechanism 67 for connecting the operation portion 24 and the insertion portion 22 is disposed at the front end of the operation portion 24 and the rear end of the insertion portion 22. After use, the insertion assembly 25 is removed and discarded, and the new insertion assembly 25 is replaced. A one-time use of the endoscope is achieved.

Wherein, the outer sleeve 1 is provided as a jacket 1 made of medical silicone material. Jacket made of silicone material 1 High comfort and good use.

The outer casing 1 is provided with a scale indicating the length, so that the user can grasp the length of the endoscope insertion. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art The technical solutions of the present invention are modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

Claims

claims

1. A medical endoscope insertion assembly, including an insertion part, a bending part, a front end part, a connecting part and a jacket provided at the front end of the operating part, and is characterized by:

The insertion part is provided with a support component, a working channel, a control cable, and a power signal cable. The support component is configured as a first threaded coil. The working channel is a three-in-one device for air/water supply, suction, and biopsy. channel, the front end of the control cable passes through the first threaded coil and is connected to the bending part, the end of the power signal cable passes through the first threaded coil and is connected to the front end part, the lower part of the jacket Cover the insertion portion;

The bending part is provided with a second threaded coil and a fixed barrel, the second threaded coil is fixed to the fixed barrel, and the working channel is sequentially penetrated through the first threaded coil, the second threaded coil and the front end part, so The upper part of the jacket covers the second threaded coil, and the control cable is fixedly connected to the fixed barrel; the front end is provided with a camera assembly and a transparent heat shield, and the camera assembly is provided with a light source and a camera. and a PCB board, the light source and the camera are fixed to the PCB board, the PCB board is fixed to the fixed cylinder, the PCB board is provided with a working channel hole, and the working channel hole is connected to the working channel hole. The outlet of the pipe is set accordingly;

The upper end of the first threaded coil is fixedly connected to the lower end of the second threaded coil; the connection part includes a detachable connection mechanism for connecting the operating part and the insertion part.

2. A medical endoscope insertion assembly according to claim 1, characterized in that: the fixed cylinder is provided with an upper fixed cylinder and a lower fixed cylinder, and the upper fixed cylinder is sleeved on the lower fixed cylinder, The side walls of the upper fixed cylinder and the lower fixed cylinder are fixedly connected by bolts, the lower fixed cylinder is fixed to the front end of the second threaded coil, and the PCB board is fixed to the upper fixed cylinder.

3. A medical endoscope insertion assembly according to claim 1, characterized in that: a bending drive unit is provided, including at least four control cables for controlling the bending of the second threaded coil and a control cable end provided at the end of the control cable. The control balls at the bottom of the lower fixed cylinder are provided with four connection grooves in the circumferential direction, and the control balls at the ends of the four control cables are respectively clamped in the connection grooves; when the drive control cable is driven along the radial direction of the second threaded coil When moving, the control ball drives the second threaded coil to bend toward the side where the control cable is located. When the movement of the driving cable stops, the second threaded coil bends and stops. When the driving cable is not stressed, the The second threaded coil is reset.

4. A medical endoscope insertion assembly according to claim 1, characterized in that: the first threaded coil is set to a first threaded coil with equal pitch, and the second threaded coil is set to have a front end pitch greater than Second threaded coil at rear end pitch.

5. A medical endoscope insertion assembly according to claim 1, characterized in that: the light source is an LED light source, the camera includes a CMOS sensor and a lens, the lens is fixed to the CMOS sensor, The CMOS sensor is fixedly connected to the PCB board and signally connected to the PCB board, and the lens is configured as an autofocus lens.

6. A medical endoscope insertion assembly according to claim 1, characterized in that: the transparent heat shield is arranged in front of the light source, and the lower part of the transparent heat shield and the upper fixed barrel The outer side of the lower part of the transparent heat shield is connected to the jacket through heat-pressing sealing. The observation surface of the transparent heat shield is set in an arc shape to form heat insulation between the transparent heat shield and the light source. Cavity.

7. A medical endoscope insertion assembly according to claim 6, characterized in that: the first threaded coil and the second threaded coil are thermally sealed and connected to the outer jacket.

8. A medical endoscope insertion assembly according to claim 1, characterized in that: a working channel with integrated air/water supply, suction and biopsy functions is provided, and the working channel is provided with an air supply at the input end of the insertion assembly. /Water delivery interface, suction interface and biopsy interface.

9. A medical endoscope insertion assembly according to claim 1, characterized in that: the detachable connection mechanism includes a groove provided at the front end of the operating part and a convex groove provided at the insertion part, the groove The groove and the convex groove are nested and matched; the connection part is provided with a shell, the shell is configured as an upper cover and a lower cover, and the upper cover and the lower cover cover the detachable connection mechanism; the connection part is close to One end of the operating part is provided with a movable buckle, and the movable buckle is connected to the outside of the housing; the insertion part end of the housing is provided with a fixed sleeve, and the fixed sleeve is folded backward to cover the upper cover and the lower cover.

10. A medical endoscope insertion assembly according to claim 1, characterized in that: the insertion part is provided with a bending drive unit, the operating part is provided with a bending drive control unit, and the bending drive unit is provided with a bending drive control unit. There are at least four upper control cable groups, and the bending drive control unit is provided with a lower control cable group corresponding to the upper control cable group; a control ball is provided at the lower end of each control cable of the upper control cable group. , the upper end of each control cable of the lower control cable group is provided with a control ball, the upper end of the upper control cable group is connected to the bending portion, and the lower end of the lower control cable group is connected to the bending portion. The drive control unit is connected, and the lower end of the upper control cable group is connected to the upper end of the corresponding lower control cable group through a bead waist buckle; the connection part is provided with an inner tube connector, a suction connector, and a biopsy channel connection. device, the inner pipe connector is connected to the air supply/water supply channel, the output end of the inner pipe connector is provided with a solenoid valve; the connection part is provided with a PCB adapter plate, and the PCB adapter plate is provided with a cable interface , described The cable interface is used to transfer the power signal cable of the PCB board, and the PCB adapter board is fixed in the insertion part.