Endoscope

Abstract

The present invention provides an endoscope, relating to the field of medical device technology. The endoscope includes a suction valve and a valve seat. The valve seat is hollow, and the suction valve is inserted into the hollow position of the valve seat. The top of the valve seat is provided with a slot that communicates with the hollow position of the valve seat, and the slot is provided with a limit portion. An abutment is provided on the outer peripheral wall of the suction valve, and the abutment is located in the slot. The suction valve is capable of rotating in the valve seat so that the abutment and the limit portion can abut each other along the axial direction of the suction valve, and the limit portion is used to confine the abutment in the slot. The present invention alleviates the technical problem in the prior art that the sealing ring between the suction valve and the valve seat in the endoscope is worn, resulting in an increase in the fitting clearance between the suction valve and the valve seat, which makes the suction valve easily loose and fall off the valve seat. During the cleaning process of the endoscope, the suction valve is easily detached from the valve seat by the impact of high-pressure water, thereby affecting the cleaning process of the endoscope and causing inconvenience in the cleaning operation of the endoscope.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an endoscope. Background Art

[0002] Suction valves are often used on endoscopes to aspirate fluid from the patient's body to prevent the fluid from interfering with the field of view of the camera module at the front end of the endoscope.

[0003] Conventional endoscopes include an operating handle housing, a valve seat, and an insert. One end of the insert extends through the operating handle housing and resides within the housing. The valve seat is mounted on the operating handle housing and communicates with the end of the insert located within the housing. A suction valve is inserted into the valve seat, thereby communicating with the insert. Conventional endoscopes secure the suction valve to the valve seat through friction between a sealing ring mounted on the suction valve and the inner sidewall of the valve seat.

[0004] However, as the use time increases, the sealing ring between the suction valve and the valve seat will be worn, resulting in an increase in the fitting clearance between the suction valve and the valve seat, and the suction valve is prone to loosening and falling off from the valve seat.

[0005] In addition, during the cleaning process of the endoscope, high-pressure water needs to be introduced from the end of the insertion part away from the operating handle housing. The high-pressure water passes through the insertion part and reaches the valve seat, and then rushes out to the outside of the endoscope through the suction valve. During the flow of high-pressure water, the interior of the insertion part and the suction valve can be rinsed clean. However, since the fixation between the suction valve and the valve seat is achieved by the friction between the sealing ring and the inner side wall of the valve seat, when the high-pressure water passes through the valve seat and reaches the suction valve, the suction valve is easily impacted by the high-pressure water and detached from the valve seat, thereby affecting the cleaning process of the endoscope and causing inconvenience to the cleaning operation of the endoscope. Summary of the Invention

[0006] The object of the present invention is to provide an endoscope to alleviate the technical problem in the prior art that the sealing ring between the suction valve and the valve seat in the endoscope is worn, resulting in an increase in the fitting clearance between the suction valve and the valve seat, which makes the suction valve easy to loosen and fall off on the valve seat, and in the process of cleaning the endoscope, the suction valve is easily detached from the valve seat by the impact of high-pressure water, thereby affecting the cleaning process of the endoscope and causing inconvenience to the cleaning operation of the endoscope.

[0007] The endoscope provided by the present invention includes a suction valve and a valve seat;

[0008] The valve seat is hollow, the suction valve is plugged into the hollow position of the valve seat, the top of the valve seat is provided with a slot communicating with the hollow position of the valve seat, and a limiting portion is provided on the slot;

[0009] An abutment piece is provided on the outer peripheral wall of the suction valve, and the abutment piece is located in the card slot;

[0010] The suction valve can rotate in the valve seat so that the abutment member and the limiting portion can abut against each other along the axial direction of the suction valve, and the limiting portion is used to limit the abutment member in the clamping groove.

[0011] Furthermore, the clamping groove includes a notch and a straight-shaped limiting groove, and the notch is provided on the top end of the side wall of the valve seat;

[0012] The limiting groove is located on a side of the notch away from the top end of the valve seat, and one end of the limiting groove is communicated with the bottom end of the notch;

[0013] Along the circumference of the valve seat, the length of the limiting groove is greater than the length of the notch, and the limiting portion is located on the inner side wall of a portion of the limiting groove that is longer than the notch.

[0014] Furthermore, there are two clamping grooves, which are symmetrically arranged on the side wall of the valve seat;

[0015] The abutting piece is cylindrical, and there are two abutting pieces. The two abutting pieces are symmetrically arranged on the outer peripheral wall of the suction valve with the axis of the suction valve as the symmetry axis.

[0016] Furthermore, the endoscope further comprises an operating handle housing and a bar-shaped insertion portion;

[0017] The valve seat is mounted on the side wall of the operating handle housing, with one end of the valve seat located inside the operating handle housing and the other end of the valve seat located outside the operating handle housing;

[0018] One end of the insertion part is provided with a camera module, and the other end of the insertion part passes through the operating handle shell and is communicated with one end of the valve seat located inside the operating handle shell.

[0019] Furthermore, the valve seat includes a fixed seat and a mounting cylinder;

[0020] The fixing seat is hollow, the card slot is provided on the fixing seat, and the fixing seat is mounted on the side wall of the operating handle housing;

[0021] A through tube is provided in the insertion portion along its length, one end of the through tube is exposed to the outside, and the other end of the through tube is located inside the operating handle housing;

[0022] One end of the installation tube is communicated with one end of the through pipe located inside the operating handle housing, and the other end of the installation tube is sleeved in the fixing seat;

[0023] The suction valve is inserted into the installation cylinder.

[0024] Furthermore, an opening is provided on the operating handle housing, and the fixing seat is inserted into and abuts against the opening on the operating handle housing;

[0025] The valve seat also includes a pressing ring, and an internal thread is provided on the inner side wall of the pressing ring;

[0026] An external thread is provided on the outer side wall of one end of the mounting tube that is sleeved in the fixing seat, and a step portion is provided on the inner side wall of the fixing seat at a position corresponding to the external thread on the mounting tube;

[0027] An accommodating space can be formed between the inner side wall of the fixing seat between the step portion and the top end of the fixing seat and the outer side wall of the mounting tube where the external thread is provided;

[0028] The pressing ring is located in the accommodating space and is threadedly connected to the end of the mounting tube provided with an external thread, and the pressing ring abuts against the inner side wall of the step portion of the fixing seat. The pressing ring is used to cooperate with the mounting tube to fix the fixing seat on the operating handle housing.

[0029] Furthermore, the endoscope further comprises a top cover, which is provided with a through hole, and the fixing seat is inserted into and abuts against the through hole on the top cover;

[0030] The top cover is inserted into and abuts against the opening on the operating handle housing.

[0031] Furthermore, a sealing member is sleeved on the suction valve, and the sealing member abuts between the outer peripheral wall of the suction valve and the inner side wall of the mounting cylinder.

[0032] Furthermore, the endoscope further includes an adapter ring, which is fixed inside the operating handle housing;

[0033] One end of the installation cylinder away from the fixing seat passes through the adapter ring and is communicated with one end of the through pipe located in the operating handle shell.

[0034] Furthermore, the endoscope further comprises an elastic gasket;

[0035] The suction valve is provided with an abutment portion, the elastic washer is sleeved on the suction valve and located on a side of the abutment portion close to the mounting tube, and the elastic washer can abut between the abutment portion and one end of the mounting tube sleeved inside the fixing seat.

[0036] Furthermore, the endoscope includes a cable connector and a cable;

[0037] The cable connector is mounted on the operating handle housing and is in communication with the interior of the operating handle housing;

[0038] One end of the cable is connected to an external electrical appliance, and the other end of the cable passes through the cable connector, the operating handle housing and the insertion portion in sequence and is connected to the camera module.

[0039] Furthermore, along the length direction of the cable, silicone layers and two-liquid mixed hardened adhesive layers are alternately arranged between the cable connector and the cable.

[0040] Furthermore, the cable is wrapped with multiple cores, and any core includes a sealing section located inside the operating handle housing and connecting sections located on both sides of the sealing section;

[0041] The wire core at the sealing section includes a sealing section conductor, a silicone sleeve and a heat shrink sleeve; the silicone sleeve is sleeved on the sealing section conductor, and the heat shrink sleeve is sleeved on the silicone sleeve;

[0042] The wire core at the connecting section includes a connecting section conductor and an insulating sleeve, and the insulating sleeve is sleeved on the connecting section conductor;

[0043] The heat shrink sleeve is connected to the insulating sleeve.

[0044] Further, the cable connector includes a first connector and a second connector;

[0045] One end of the first connector is connected to the operating handle housing, and the other end of the first connector is sleeved inside the second connector. The end of the cable away from the external electrical appliance passes through the second connector and the first connector in sequence and is located inside the operating handle housing.

[0046] The endoscope provided by the present invention can produce the following beneficial effects:

[0047] The endoscope provided by the present invention includes a suction valve and a valve seat. The valve seat is hollow, and the suction valve is inserted into the hollow position of the valve seat. The top of the valve seat is provided with a slot connected to the hollow position of the valve seat, and a limiting portion is provided on the slot. An abutment is provided on the outer peripheral wall of the suction valve. The suction valve in the endoscope provided by the present invention is inserted into the valve seat. When the suction valve is inserted into the valve seat, the abutment on the suction valve is located in the slot on the valve seat. After the suction valve is rotated in the valve seat, the abutment on the suction valve is located at the abutment in the slot. At this time, the abutment on the suction valve and the limiting portion on the slot can abut each other along the axial direction of the suction valve. The limiting portion can confine the abutment in the slot, and the abutment will not detach from the slot, so the suction valve will not detach from the valve seat.

[0048] Compared with the prior art, the fixation between the suction valve and the valve seat in the endoscope provided by the present invention is achieved by the limiting portion on the abutment and the slot. Therefore, even if a sealing ring is provided between the suction valve and the valve seat and the sealing ring is worn, resulting in an increase in the fitting clearance between the suction valve and the valve seat, the suction valve and the valve seat in the endoscope of the present invention are not easy to separate.

[0049] In addition, during the process of cleaning the endoscope, when high-pressure water passes through the valve seat and the suction valve in turn, since the abutment abuts against the limiting portion on the card slot, even if the suction valve is impacted by the high-pressure water, the suction valve will be stably inserted into the valve seat, and the suction valve will not easily detach from the valve seat, thereby not affecting the cleaning process of the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 A schematic structural diagram of an endoscope provided in an embodiment of the present invention;

[0052] Figure 2 for Figure 1 Schematic diagram of the structure of the suction valve and valve seat;

[0053] Figure 3 for Figure 1 Another structural diagram of the suction valve and valve seat;

[0054] Figure 4 for Figure 2 Schematic diagram of the structure of the suction valve;

[0055] Figure 5 for Figure 3 Schematic diagram of the structure of the suction valve;

[0056] Figure 6 for Figure 1 The main view of the endoscope in;

[0057] Figure 7 for Figure 6 A partial cross-sectional view of an endoscope in FIG.

[0058] Figure 8 for Figure 7 Schematic diagram of the structure of cables and cable connectors;

[0059] Figure 9 for Figure 8 Schematic diagram of the internal structure of the cables and cable connectors in FIG;

[0060] Figure 10 for Figure 9 Schematic diagram of the structure of the wire core in the cable located inside the operating handle housing.

[0061] Icons: 1-suction valve; 10-abutment; 11-sealing part; 12-exposed section; 13-plug-in section; 130-elastic gasket; 2-valve seat; 20-slot; 200-limiting part; 201-notch; 202-limiting groove; 21-fixing seat; 210-step part; 22-installing cylinder; 23-pressing ring; 3-operating handle housing; 30-adapter ring; 4-insertion part; 40-through pipe; 5-top cover; 6-cable connector; 60-silicone layer; 61-two-liquid mixed hardened rubber layer; 62-first connector; 63-second connector; 7-cable; 8-wire core; 80-sealing section; 81-connecting section; 800-sealing section wire; 801-silicone sleeve; 802-heat shrink sleeve. DETAILED DESCRIPTION

[0062] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0063] Example:

[0064] like Figure 1-Figure 5 As shown, the endoscope provided in this embodiment includes a suction valve 1 and a valve seat 2. The valve seat 2 is hollow, and the suction valve 1 is inserted into the hollow portion of the valve seat 2. The top end of the valve seat 2 is provided with a retaining groove 20 that communicates with the hollow portion of the valve seat 2. The retaining groove 20 is provided with a limit portion 200. An abutment 10 is provided on the outer peripheral wall of the suction valve 1, and the abutment 10 is located in the retaining groove 20. The suction valve 1 is capable of rotating within the valve seat 2 so that the abutment 10 and the limit portion 200 can abut each other along the axial direction of the suction valve 1. The limit portion 200 is used to confine the abutment 10 in the retaining groove 20.

[0065] like Figure 1-Figure 3 As shown, the suction valve 1 is inserted into the valve seat 2. When the suction valve 1 is inserted into the valve seat 2, the abutment 10 on the suction valve 1 is located in the groove 20 on the valve seat 2. Figure 2-Figure 3 As shown, after the suction valve 1 is rotated in the valve seat 2, the abutment on the suction valve 1 is located at the abutment portion in the slot 20. At this time, the abutment 10 on the suction valve 1 and the limiting portion 200 on the slot 20 can abut each other along the axial direction of the suction valve 1. The limiting portion 200 can confine the abutment 10 in the slot 20, and the abutment 10 will not detach from the slot 20, so that the suction valve 1 will not detach from the valve seat 2.

[0066] Compared with the prior art, the fixation between the suction valve 1 and the valve seat 2 in the endoscope provided in this embodiment is achieved by the abutment 10 and the limiting portion 200 on the slot 20. Therefore, even if a sealing ring is provided between the suction valve 1 and the valve seat 2 and the sealing ring is worn, resulting in an increase in the fitting clearance between the suction valve 1 and the valve seat 2, the suction valve 1 and the valve seat 2 in the endoscope in this embodiment are not easy to separate.

[0067] In addition, during the process of cleaning the endoscope, when high-pressure water passes through the valve seat 2 and the suction valve 1 in turn, since the abutment 10 abuts against the limiting portion 200 on the card slot 20, even if the suction valve 1 is impacted by high-pressure water, the suction valve 1 will be stably inserted into the valve seat 2, and the suction valve 1 will not easily detach from the valve seat 2, thereby not affecting the cleaning process of the endoscope.

[0068] It can be seen that the endoscope provided in this embodiment alleviates the technical problem in the prior art that the sealing ring between the suction valve 1 and the valve seat 2 in the endoscope is worn, resulting in an increase in the fitting clearance between the suction valve 1 and the valve seat 2, which makes the suction valve 1 easy to loosen and fall off on the valve seat 2, and in the process of cleaning the endoscope, the suction valve 1 is easily impacted by high-pressure water and detached from the valve seat 2, thereby affecting the cleaning process of the endoscope and causing inconvenience to the cleaning operation of the endoscope.

[0069] like Figure 2-Figure 3 As shown, the retaining groove 20 includes a notch 201 and a straight-line limiting groove 202. The notch 201 is provided at the top end of the sidewall of the valve seat 2. The limiting groove 202 is located on the side of the notch 201 away from the top end of the valve seat 2, and one end of the limiting groove 202 is connected to the bottom end of the notch 201. Along the circumference of the valve seat 2, the length of the limiting groove 202 is greater than the length of the notch 201. The limiting portion 200 is located on the inner sidewall of the limiting groove 202, which is longer than the notch 201.

[0070] like Figure 2 As shown, in this embodiment, the shape of the latching slot 20 formed by the communication between the notch 201 and the I-shaped limiting groove 202 is a horizontal L-shape.

[0071] When inserting the suction valve 1 into the valve seat 2, the abutment 10 on the suction valve 1 must first pass through the notch 201 and reach the limiting groove 202, and then the suction valve 1 is rotated in the valve seat 2 so that the abutment 10 on the suction valve 1 rotates to the part of the limiting groove 202 that is longer than the notch 201, and then the abutment 10 will abut against the limiting portion 200 along the axial direction of the suction valve 1. The limiting portion 200 can prevent the abutment 10 from detaching from the card slot 20, thereby preventing the suction valve 1 from detaching from the valve seat 2.

[0072] In actual application, the shape of the slot 20 is not limited to a horizontal L-shape. The notch 201 is located above the I-shaped limiting groove 202 and is connected to the middle portion of the I-shaped limiting groove 202. In this case, the inner sidewalls on both sides of the middle portion of the I-shaped limiting groove 202 can serve as the limiting portion 200. Rotating the suction valve 1 clockwise or counterclockwise in the valve seat 2 can cause the abutment 10 on the suction valve 1 to reach the limiting portion 200, and then abut against the limiting portion 200 along the axial direction of the suction valve 1. It can be seen that the slot 20 formed by the notch 201 connecting to the middle portion of the I-shaped limiting groove 202 has greater flexibility in use.

[0073] like Figure 2-Figure 3 As shown, there are two slots 20, which are symmetrically arranged on the side wall of the valve seat 2. Figure 4-Figure 5 As shown, the abutment member 10 is cylindrical, and there are two abutment members 10 . The two abutment members 10 are symmetrically arranged on the outer peripheral wall of the suction valve 1 with the axis of the suction valve 1 as the symmetry axis.

[0074] One of the slots 20 is used in conjunction with one of the abutting members 10, and the other slot 20 is used in conjunction with the other abutting member 10. The symmetrical arrangement of the two slots 20 and the symmetrical arrangement of the two abutting members 10 can make the acting force between the suction valve 1 and the valve seat 2 more balanced, thereby improving the connection stability between the valve seat 2 and the suction valve 1.

[0075] The abutment member 10 may be a pin penetrating the side wall of the suction valve 1 .

[0076] like Figure 6 and Figure 7 As shown in FIG, the endoscope provided in this embodiment further includes an operating handle housing 3 and a strip-shaped insertion portion 4. Figure 7 As shown, the valve seat 2 is mounted on the side wall of the operating handle housing 3, with one end of the valve seat 2 located inside the operating handle housing 3 and the other end of the valve seat 2 located outside the operating handle housing 3. A camera module is provided at one end of the insertion portion 4, and the other end of the insertion portion 4 passes through the operating handle housing 3 and communicates with the end of the valve seat 2 located inside the operating handle housing 3.

[0077] The endoscope provided in this embodiment, like the existing endoscope, comprises an operating handle housing 3 and a strip-shaped insertion portion 4 , and the valve seat 2 is also mounted on the operating handle housing 3 .

[0078] The operating handle housing 3 is used for holding, and is provided with buttons for controlling the endoscope to switch working modes, and a handle with a bent end for controlling the insertion portion 4 provided with a camera module.

[0079] The insertion portion 4 is used to extend into the patient's body, and the camera module is used to observe the patient's internal conditions. If fluid accumulates at the front end of the camera module of the insertion portion 4, the suction valve 1 and the insertion portion 4 connected to the suction valve 1 can be used to aspirate the accumulated fluid to the outside of the body, thereby preventing the accumulated fluid from obstructing the camera module's field of view.

[0080] like Figure 7 As shown, the valve seat 2 includes a fixed seat 21 and a mounting sleeve 22. The fixed seat 21 is hollow, and the retaining groove 20 is provided on the fixed seat 21. The fixed seat 21 is mounted on the side wall of the operating handle housing 3. A through tube 40 is provided along the length of the insertion portion 4. One end of the through tube 40 is exposed to the outside world, and the other end of the through tube 40 is located inside the operating handle housing 3. One end of the mounting sleeve 22 is connected to the end of the through tube 40 located inside the operating handle housing 3, and the other end of the mounting sleeve 22 is sleeved into the fixed seat 21. The suction valve 1 is inserted into the mounting sleeve 22.

[0081] The fixing seat 21 can be fixed on the side wall of the operating handle housing 3 , and the mounting tube 22 can be fixed inside the operating handle housing 3 .

[0082] Further, such as Figure 7 As shown, the operating handle housing 3 is provided with an opening, and the fixing seat 21 is inserted into and abuts the opening of the operating handle housing 3. The valve seat 2 also includes a pressure ring 23, the inner sidewall of which is provided with an internal thread. The outer sidewall of the mounting tube 22, which is sleeved into the fixing seat 21, is provided with an external thread. A step portion 210 is provided on the inner sidewall of the fixing seat 21 at a position corresponding to the external thread on the mounting tube 22. A storage space is formed between the inner sidewall of the fixing seat 21 between the step portion 210 and the top of the fixing seat 21 and the outer sidewall of the mounting tube 22 at the location where the external thread is provided. The pressure ring 23 is located in the storage space and is threadedly connected to the end of the mounting tube 22 provided with the external thread. The pressure ring 23 abuts the inner sidewall of the fixing seat 21 at the step portion 210. The pressure ring 23 is used to cooperate with the mounting tube 22 to fix the fixing seat 21 to the operating handle housing 3.

[0083] In this embodiment, the valve seat 2 is detachably mounted on the operating handle housing 3. When assembling the valve seat 2 on the operating handle housing 3, the mounting tube 22 can be first fixed to the inside of the operating handle housing 3 using fasteners such as screws, and the end of the mounting tube 22 without external threads is connected to the through pipe 40 in the insertion portion 4.

[0084] Then, the fixing seat 21 can be inserted and abutted against the opening of the operating handle housing 3, and at the same time, the end of the mounting tube 22 provided with the external thread is located inside the fixing seat 21. A sealing ring can be sleeved on the fixing seat 21, and the sealing ring abuts between the outer wall of the fixing seat 21 and the inner wall of the opening of the operating handle housing 3.

[0085] After installing the fixing base 21, use an external tool to thread the pressing ring 23 onto the externally threaded end of the mounting tube 22. During this process, the pressing ring 23 is inserted into the aforementioned receiving space and ultimately abuts against the stepped portion 210 of the fixing base 21. Once the pressing ring 23 abuts against the stepped portion 210 of the fixing base 21, it can then cooperate with the mounting tube 22 to secure the fixing base 21 to the side wall of the operating handle housing 3.

[0086] The pressing ring 23 is made of a hard material, such as metal or alloy.

[0087] After the pressing ring 23 is installed on the installation cylinder 22 , the process of assembling the valve seat 2 on the operating handle housing 3 is completed.

[0088] When the valve seat 2 needs to be removed from the operating handle housing 3, the pressing ring 23 can be removed from the mounting tube 22 using an external tool, and then the fixing seat 21 and the mounting tube 22 can be removed in sequence according to the reverse process of the above assembly process.

[0089] In order to improve the sealing performance of the endoscope, a sealing ring may be sleeved on the mounting tube 22 , and the sealing ring abuts between the outer wall of the mounting tube 22 and the inner wall of the fixing seat 21 .

[0090] like Figure 7 As shown, the endoscope provided in this embodiment further includes a top cover 5, which is provided with a perforation, and the fixing seat 21 is inserted into and abuts against the perforation on the top cover 5. The top cover 5 is inserted into and abuts against the opening on the operating handle housing 3.

[0091] When the valve seat 2 needs to be assembled on the operating handle housing 3 , the fixing seat 21 must first be inserted and abutted against the through-hole on the top cover 5 , and then the top cover 5 with the fixing seat 21 inserted therein must be inserted on the operating handle housing 3 .

[0092] like Figure 7 As shown, the side wall of the opening on the operating handle housing 3 may be stepped, and the stepped side wall is used to enable the top cover 5 to be inserted into and abut against the opening on the operating handle housing 3 .

[0093] It should be noted that the sealing ring sleeved on the fixing seat 21 can abut between the fixing seat 21 and the top cover 5 .

[0094] Furthermore, in order to improve the sealing performance of the endoscope, a sealing ring may be sleeved on the top cover 5 , and the sealing ring on the top cover 5 is used to abut between the top cover 5 and the side wall of the opening on the operating handle housing 3 .

[0095] like Figure 7As shown, a sealing member 11 is sleeved on the suction valve 1 , and the sealing member 11 abuts between the outer peripheral wall of the suction valve 1 and the inner side wall of the mounting cylinder 22 .

[0096] The sealing member 11 is annular and can be a rubber ring or a silicone ring. The sealing member 11 not only seals the valve but also increases the friction between the suction valve 1 and the mounting cylinder 22, thereby further improving the connection stability between the suction valve 1 and the valve seat 2.

[0097] like Figure 7 As shown, the endoscope provided in this embodiment further includes an adapter ring 30, which is fixed inside the operating handle housing 3. The end of the mounting tube 22 away from the fixing seat 21 passes through the adapter ring 30 and communicates with the end of the through tube 40 located inside the operating handle housing 3.

[0098] The adapter ring 30 is annular, and an extension portion is provided on one side of the adapter ring 30 . The extension portion is provided with a hole for passing a screw through the hole, and the screw can be threadedly connected to the inner wall of the operating handle housing 3 .

[0099] The adapter ring 30 is used to fix the mounting cylinder 22 inside the operating handle housing 3 .

[0100] like Figure 7 As shown, the endoscope provided in this embodiment also includes an elastic gasket 130. An abutment portion is provided on the suction valve 1. The elastic gasket 130 is sleeved on the suction valve 1 and is located on the side of the abutment portion close to the mounting tube 22. The elastic gasket 130 can abut between the abutment portion and one end of the mounting tube 22 that is sleeved inside the fixing seat 21.

[0101] like Figure 7 As shown, the suction valve 1 may include an exposed section 12 and an inserting section 13 connected in sequence. Both the exposed section 12 and the inserting section 13 of the suction valve 1 are cylindrical, and the diameter of the exposed section 12 of the suction valve 1 is larger than the diameter of the inserting section 13. The portion of the exposed section 12 of the suction valve 1 that protrudes from the inserting section 13 at the connection position with the inserting section 13 is the aforementioned abutment portion.

[0102] The plug-in section 13 of the suction valve 1 is plugged into the mounting tube 22 , and the elastic washer 130 is sleeved on the plug-in section 13 of the suction valve 1 and is located on a side of the abutment portion close to the mounting tube 22 .

[0103] When inserting and securing the suction valve 1 into the valve seat 2, the abutment 10 on the suction valve 1 can be first aligned with the retaining groove 20 on the side wall of the retaining seat 21. Then, pressure is applied to the suction valve 1 axially, and the suction valve 1 is inserted into the mounting tube 22. When the suction valve 1 is subjected to pressure, the side of the exposed section 12 thereof, which is adjacent to the insertion section 13, applies pressure to the elastic washer 130. Without releasing the pressure, the suction valve 1 is rotated so that the abutment 10 on the suction valve 1 rotates within the retaining groove 20 and reaches the stopper 200. The pressure is then released, and the suction valve 1 is allowed to return to its original shape under the elastic recovery action of the elastic washer 130, applying an axial thrust to the suction valve 1. Upon receiving this thrust, the abutment 10 on the suction valve 1 abuts the stopper 200 on the retaining groove 20 along the axial direction of the suction valve 1, thereby stably securing the suction valve 1 against the valve seat 2.

[0104] The elastic washer 130 can further fix the suction valve 1 in the valve seat 2 , thereby improving the connection stability between the suction valve 1 and the valve seat 2 .

[0105] The elastic gasket 130 may be a rubber gasket or a silicone gasket.

[0106] like Figure 7-Figure 9 As shown, the endoscope provided in this embodiment further includes a cable connector 6 and a cable 7. The cable connector 6 is mounted on the operating handle housing 3 and communicates with the interior of the operating handle housing 3. One end of the cable 7 is connected to an external electrical appliance, and the other end of the cable 7 passes through the cable connector 6, the operating handle housing 3, and the insertion portion 4 in sequence and is then connected to the camera module.

[0107] The external device may be an existing graphic display, and the cable 7 is used to transmit the image information captured by the camera module to the external device, which then displays the image information. Alternatively, the external device may be an image processor connected to the display. In this case, the cable 7 can transmit the image information captured by the camera module to the image processor, which then processes the image information before transmitting it to the display.

[0108] like Figure 7 and Figure 9 As shown, along the length direction of the cable 7 , silicone layers 60 and two-liquid mixed hardened adhesive layers 61 are alternately provided between the cable connector 6 and the cable 7 .

[0109] Existing endoscopes also include cable connectors and cables. To improve the sealing between the cable connectors and cables and to connect the cable connectors and cables together, the existing cable and cable connectors are filled with a two-liquid mixed hardening glue (i.e., existing AB glue). However, due to the poor high and low temperature cycling resistance of the two-liquid mixed hardening glue and the temperature of the endoscope sometimes switching between high and low temperatures during use, the two-liquid mixed hardening glue filled between the cable and the cable connector is easily separated from the metal or alloy cable connector, resulting in gaps inside the cable connector, which can easily cause air and water leakage between the cable connector and the cable.

[0110] In this embodiment, a silicone layer 60 and a two-liquid mixed hardened adhesive layer 61 are alternately arranged between the cable connector 6 and the cable 7. The two-liquid mixed hardened adhesive layer 61 is made of two-liquid mixed hardened adhesive (i.e., existing AB adhesive). The two-liquid mixed hardened adhesive layer 61 is used to connect the cable connector 6 and the cable 7, and the silicone layer 60 is used to seal the gap between the cable connector 6 and the cable 7. The silicone layer 60 has better resistance to alternating high and low temperatures than the two-liquid mixed hardened adhesive layer 61. The silicone layer 60 and the two-liquid mixed hardened adhesive layer 61 are alternately arranged, which not only stably connects the cable connector 6 and the cable 7, but also prevents the formation of gaps inside the cable connector 6 when the temperature on the endoscope switches between high and low temperatures, thereby ensuring the sealing between the cable connector 6 and the cable 7.

[0111] like Figure 9 As shown, in this embodiment, the two-liquid mixed hardening adhesive layer 61 is preferably three layers, and the silicone layer 60 is two layers.

[0112] like Figure 7 、 Figure 9 and Figure 10 As shown, the cable 7 is wrapped with multiple cores 8, and any core 8 includes a sealing section 80 located inside the operating handle housing 3 and connecting sections 81 located on both sides of the sealing section 80. Figure 10 As shown, the wire core 8 at the sealing section 80 includes a sealing section conductor 800, a silicone sleeve 801, and a heat shrink sleeve 802. The silicone sleeve 801 is sleeved over the sealing section conductor 800, and the heat shrink sleeve 802 is sleeved over the silicone sleeve 801. The wire core 8 at the connecting section 81 includes the connecting section conductor 81 and an insulating sleeve. The insulating sleeve is sleeved over the connecting section conductor 81. The heat shrink sleeve 802 is connected to the insulating sleeve.

[0113] The heat shrink sleeve 802 may be an existing heat shrink tube, and the heat shrink sleeve 802 may be made of a heat shrink material that can shrink after being heated, such as silicone, polyethylene, etc.

[0114] When forming the sealing section 80, the insulating sleeve on the wire core 8 of the cable 7 located inside the operating handle housing 3 can be peeled off first to expose the wires therein, and then silicone is applied to the exposed wires to form a silicone sleeve 801. Then, a heat shrink sleeve 802 is put on the silicone sleeve 801, and the ends of the heat shrink sleeve 802 are heated. After the heated heat shrink sleeve 802 cools and solidifies, its ends are fixedly connected to the insulating sleeves on the connecting sections 81 located on both sides of the sealing section 80, thereby sealing the wires in the wire core 8 with the insulating sleeve.

[0115] The core of the cable in an existing endoscope consists of a conductor and an insulating sheath surrounding the conductor. The conductor and the insulating sheath are not sealed, allowing gas to easily enter. Before cleaning an endoscope, it is often necessary to immerse the endoscope in water to detect internal leaks and damage. However, since the conductor and the insulating sheath are not sealed, gas trapped between them can often affect the leak detection results, leading to a false conclusion that the endoscope is damaged.

[0116] The wire core 8 in this embodiment includes a sealing section 80, and the sealing section conductor 800 and the insulating sleeve at the sealing section 80 are sealed with a silicone sleeve 801 and a heat shrink sleeve 802, so that the conductor in the wire core 8 and the insulating sleeve are sealed, which can prevent the airtightness inside the wire core 8 from affecting the results of the leak detection operation.

[0117] like Figure 9 As shown, the cable connector 6 includes a first connector 62 and a second connector 63. One end of the first connector 62 is connected to the operating handle housing 3, and the other end of the first connector 62 is sleeved inside the second connector 63. The end of the cable 7 away from the external electrical appliance passes through the second connector 63 and the first connector 62 in sequence and is located inside the operating handle housing 3.

[0118] The first joint 62 can be connected to the operating handle housing 3 by a threaded connection, and the second joint 63 can be sleeved and fixed on the first joint 62 by a threaded connection.

[0119] Furthermore, the material of the first joint 62 may be metal or alloy, and the material of the second joint 63 may be silicone.

[0120] The first connector 62 and the second connector 63 can also protect the portion of the cable 7 close to the operating handle housing 3 , thereby preventing the cable 7 from being damaged due to bending at the position close to the operating handle housing 3 .

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope, characterized in that: The endoscope includes a suction valve and a valve seat: The valve seat is hollow, the suction valve is inserted into the hollow position of the valve seat, the top of the valve seat is provided with a slot communicating with the hollow position of the valve seat, and a limiting portion is provided on the slot; An abutment member is provided on the outer peripheral wall of the suction valve, and the abutment member is located in the clamping groove; The suction valve can rotate in the valve seat so that the abutment member and the limiting portion can abut against each other along the axial direction of the suction valve, and the limiting portion is used to limit the abutment member in the clamping groove; The endoscope further comprises an operating handle housing and a bar-shaped insertion portion; The valve seat is mounted on a side wall of the operating handle housing, with one end of the valve seat located inside the operating handle housing and the other end of the valve seat located outside the operating handle housing; A camera module is provided at one end of the insertion portion, and the other end of the insertion portion passes through the operating handle housing and communicates with one end of the valve seat located inside the operating handle housing; The valve seat includes a fixed seat and a mounting cylinder; The fixing seat is hollow, the card slot is provided on the fixing seat, and the fixing seat is mounted on the side wall of the operating handle housing; A through tube is provided in the insertion portion along the length direction of the insertion portion, one end of the through tube is exposed to the outside, and the other end of the through tube is located inside the operating handle housing; One end of the mounting tube is in communication with one end of the through pipe located inside the operating handle housing, and the other end of the mounting tube is sleeved in the fixing seat; The suction valve is inserted into the mounting cylinder; The operating handle housing is provided with an opening, and the fixing seat is inserted into and abuts against the opening on the operating handle housing; The valve seat further comprises a pressing ring, and an inner side wall of the pressing ring is provided with an internal thread; An external thread is provided on the outer side wall of one end of the mounting tube that is sleeved in the fixing seat, and a step portion is provided on the inner side wall of the fixing seat at a position corresponding to the external thread on the mounting tube; An accommodating space can be formed between the inner side wall of the fixing seat located between the step portion and the top end of the fixing seat and the outer side wall of the mounting tube where the external thread is provided; The pressing ring is located in the accommodating space and is threadedly connected to the end of the mounting tube provided with an external thread, and the pressing ring abuts against the inner side wall of the step portion of the fixing seat. The pressing ring is used to cooperate with the mounting tube to fix the fixing seat on the operating handle housing; The endoscope further comprises an adapter ring, which is fixed inside the operating handle housing; An end of the mounting tube away from the fixing seat passes through the adapter ring and is communicated with an end of the through pipe located inside the operating handle housing; The endoscope also includes a cable connector and a cable; The cable connector is mounted on the operating handle housing and communicates with the interior of the operating handle housing; One end of the cable is connected to an external electrical appliance, and the other end of the cable passes through the cable connector, the operating handle housing, and the insertion portion in sequence and is connected to the camera module; Along the length direction of the cable, silicone layers and two-liquid mixed hardened adhesive layers are alternately arranged between the cable connector and the cable; The cable is wrapped with a plurality of cores, and any of the cores includes a sealing section located inside the operating handle housing and connecting sections located on both sides of the sealing section; The wire core at the sealing section includes a sealing section conductor, a silicone sleeve and a heat shrink sleeve; the silicone sleeve is sleeved on the sealing section conductor, and the heat shrink sleeve is sleeved on the silicone sleeve; The wire core at the connecting section includes a connecting section conductor and an insulating sleeve, and the insulating sleeve is sleeved on the connecting section conductor; The heat shrink sleeve is connected to the insulating sleeve.

2. The endoscope according to claim 1, wherein: The clamping groove includes a notch and a straight-shaped limiting groove, and the notch is arranged on the top end of the side wall of the valve seat; The limiting groove is located on a side of the notch away from the top end of the valve seat, and one end of the limiting groove is communicated with the bottom end of the notch; Along the circumference of the valve seat, the length of the limiting groove is greater than the length of the notch, and the limiting portion is located on the inner side wall of a portion of the limiting groove that is longer than the notch.

3. The endoscope according to claim 1, wherein There are two clamping grooves, and the two clamping grooves are symmetrically arranged on the side wall of the valve seat; The abutment is cylindrical, and there are two abutment. The two abutment are symmetrically arranged on the outer peripheral wall of the suction valve with the axis of the suction valve as the symmetry axis.

4. The endoscope according to claim 1, wherein The endoscope further comprises a top cover, the top cover is provided with a through hole, and the fixing seat is inserted into and abuts against the through hole on the top cover; The top cover is inserted into and abuts against the opening on the operating handle housing.

5. The endoscope according to claim 1, wherein A sealing member is sleeved on the suction valve, and the sealing member abuts between the outer peripheral wall of the suction valve and the inner side wall of the mounting cylinder.

6. The endoscope according to any one of claims 1 to 5, characterized in that: The endoscope further includes an elastic gasket; The suction valve is provided with an abutment portion, the elastic washer is sleeved on the suction valve and is located on a side of the abutment portion close to the mounting tube, and the elastic washer can abut between the abutment portion and one end of the mounting tube sleeved inside the fixing seat.

7. The endoscope according to claim 1, wherein The cable connector includes a first connector and a second connector; One end of the first connector is connected to the operating handle housing, and the other end of the first connector is sleeved inside the second connector. The end of the cable away from the external electrical appliance passes through the second connector and the first connector in sequence and is located inside the operating handle housing.

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