Water inlet and outlet mechanism of endoscope

Abstract

The water inlet and outlet mechanism comprises a multi-way valve, a water inlet adapter, an insertion pipe and an endoscope outer pipe, the multi-way valve comprises a water inlet pipe, a water inlet adapter pipe, a valve body and a water outlet pipe, the water inlet pipe is provided with a water inlet channel, the water inlet adapter pipe is provided with an adapter channel, and the water inlet channel is communicated with the adapter channel; the valve body is provided with a valve body channel, the water outlet pipe is provided with a water outlet channel, the valve body channel is communicated with the water outlet channel, and the water inlet pipe and the water outlet pipe are symmetrically arranged on the valve body. The water inlet adapting piece is connected with the water inlet adapting pipe through a hose and connected with the valve body through an inserting pipe. One end of the endoscope outer tube is contained in the valve body, and a water inlet hole is formed in the other end of the endoscope outer tube so that liquid can flow into the endoscope outer tube from the water inlet hole. The water inlet and outlet mechanism is symmetrically arranged and is convenient for an operator to use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an endoscope water inlet / outlet mechanism. Background Technology

[0002] Current medical endoscopes require an external inlet to irrigate and continuously flush the fluid, enabling the observation of human tissues or organs. Therefore, an inlet mechanism is necessary. During flushing, the fluid from the tissues or organs needs to be expelled, necessitating an outlet mechanism. Most endoscopes on the market have their inlet and outlet mechanisms located asymmetrically at the top and bottom of the endoscope handle.

[0003] Because both the inlet and outlet water mechanisms are connected to external water pipes, and their positions on the endoscope handle are asymmetrical, the weight and traction of the water pipes cause uneven force on the endoscope handle in the operator's hand. This requires the operator to exert continuous force to maintain the overall balance of the instrument. Over time, this can cause hand fatigue and reduce control precision, thus increasing potential risks to surgical patients.

[0004] The pipes connected to the misaligned inlet and outlet water mechanisms will naturally droop. Because of the position of the endoscope handle, it is difficult to avoid the water pipe coming into contact with the operator's hand when operating the endoscope. This affects the operator's normal hand operation and increases the risk of contamination of the operator's hands, thereby increasing the risk of infection for the patient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an endoscope water inlet / outlet mechanism, which is symmetrically arranged for ease of use by the operator.

[0006] This utility model is achieved through the following technical solution:

[0007] An endoscope water inlet / outlet mechanism includes:

[0008] A multi-way valve includes an inlet pipe, an inlet adapter pipe, a valve body, and an outlet pipe. The inlet pipe is provided with an inlet channel, the inlet adapter pipe is provided with an adapter channel, the inlet channel and the adapter channel are connected, the valve body is provided with a valve body channel, and the outlet pipe is provided with an outlet channel, the valve body channel and the outlet channel are connected, and the inlet pipe and outlet pipe are symmetrically arranged on the valve body.

[0009] The water inlet adapter is connected to the water inlet adapter pipe via a hose and to the valve body via an insertion pipe.

[0010] The endoscope outer tube has one end housed in the valve body, and the other end has a water inlet hole that allows liquid to flow into the endoscope outer tube.

[0011] The multi-way valve is connected to the water inlet adapter via a hose. One end of the insertion tube is fixed to the water inlet adapter, and the other end passes through the multi-way valve. One end of the endoscope outer tube is fixed in the multi-way valve, so that the insertion tube is accommodated in the endoscope outer tube.

[0012] Preferably, the valve body includes a side wall and a bottom wall, with the inlet pipe and outlet pipe located on opposite sides of the side wall and symmetrically arranged about the center line of the valve body.

[0013] Preferably, the bottom wall has an insertion hole that penetrates the bottom wall, and the insertion tube passes through the insertion hole.

[0014] Preferably, the sidewall and bottomwall together form a valve body channel, the insertion tube passes through the valve body channel, and the endoscope outer tube is connected to the valve body channel.

[0015] Preferably, the water inlet adapter includes a first pipe and a second pipe connected to each other, the first pipe having a first channel and the second pipe having a second channel, the first channel and the second channel being connected.

[0016] Preferably, the first pipe is fixedly connected to the hose, and one end of the second pipe is fixedly connected to the insertion tube.

[0017] Preferably, the endoscope water inlet / outlet mechanism also includes a guide end, which is fixedly connected to the other end of the second pipe.

[0018] Preferably, the water inlet adapter also includes a silicone baffle, which is fitted onto the other end of the second pipe.

[0019] Preferably, the water inlet adapter also includes a sealing ring, which is fixedly connected to the guide end and abuts against the silicone baffle.

[0020] Preferably, the endoscope water inlet / outlet mechanism also includes a tip with a mounting hole through it, and the other end of the insertion tube is installed in the mounting hole so that liquid flows out of the insertion tube from the mounting hole.

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] Because the inlet and outlet pipes are symmetrically arranged on the multi-way valve, the endoscope handle experiences even force after the water pipes are connected. This avoids operator fatigue and reduced control precision caused by continuous force to maintain the overall balance of the instrument, thus minimizing potential risks to the patient during surgery. Furthermore, compared to pistol-type endoscopes, the handle of this novel endoscope rotates more flexibly around its axis, making operation more convenient and providing a larger operating space.

[0023] 2. The multi-way valve is located at the end of the endoscope handle, which can prevent the water inlet and outlet mechanisms from coming into contact with the operator's hands when using the endoscope, thereby avoiding contamination of the operator's hands and reducing the risk of infection to the patient.

[0024] 3. By incorporating a sealing ring, the instrument always passes perpendicularly through the silicone baffle, preventing increased leakage due to the instrument's tilt when passing through the baffle. Simultaneously, the sealing ring also blocks any leakage that occurs at the silicone baffle, creating pressure between the baffle and the sealing ring to further prevent liquid from leaking out through the gaps between the baffle and the instrument. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an endoscope water inlet / outlet mechanism;

[0026] Figure 2 This is a schematic diagram of the structure of an endoscope.

[0027] Figure 3 for Figure 2 BB section view;

[0028] Figure 4 A 3D view of a multi-way valve;

[0029] Figure 5 This is a schematic diagram of the structure of a multi-way valve;

[0030] Figure 6 for Figure 5 CC section view;

[0031] Figure 7 This is a schematic diagram of the water inlet adapter.

[0032] Numbering in the diagram: 1-Multi-way valve, 11-Inlet pipe, 111-Inlet channel, 12-Inlet adapter pipe, 121-Adapter channel, 13-Valve body, 131-Outer wall, 132-Side wall, 133-Bottom wall, 136-Insert hole, 137-Cable hole, 138-Valve body channel, A-Centerline, 14-Outlet pipe, 141-Outlet channel, 2-Inlet adapter, 21-First pipe, 211-First Channel, 22-Second pipe, 221-Second channel, 222-Installation key, 23-Silicone baffle, 24-Sealing ring, 3-Hose, 4-Insert tube, 5-Endoscope outer tube, 51-Water inlet, 6-Tip, 61-Mounting hole, 7-Guide tip, 71-Mounting groove, 72-Boss, 8-Handle housing, 81-Tail, 82-Upper housing, 83-Lower housing, 84-Rib plate, 85-Through hole. Detailed Implementation

[0033] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] This application provides an endoscope, such as... Figures 1 to 3 As shown, the endoscope includes an endoscope water inlet / outlet mechanism and a handle housing 8. The endoscope water inlet / outlet mechanism includes a multi-way valve 1, a water inlet adapter 2, a hose 3, an insertion tube 4, an endoscope outer tube 5, a tip 6, and a guide tip 7. The multi-way valve 1 is installed at the tail 81 of the handle housing 8. The water inlet adapter 2 is connected to the multi-way valve 1 via the hose 3. One end of the insertion tube 4 is fixed to the water inlet adapter 2, and the other end passes through the multi-way valve 1 and is fixed in the tip 6. One end of the endoscope outer tube 5 is fixed in the multi-way valve 1, allowing the insertion tube 4 to be accommodated within the endoscope outer tube 5, and the other end is fixedly connected to the tip 6.

[0035] like Figures 4 to 6As shown, the multi-way valve 1 is integrally molded and includes an inlet pipe 11, an inlet adapter pipe 12, a valve body 13, and an outlet pipe 14. Both the inlet pipe 11 and the outlet pipe 14 are connected to external water pipes (not shown in the figure). The inlet pipe 11 and the outlet pipe 14 are symmetrically arranged on the valve body 13. The inlet pipe 11 has an inlet channel 111, and the inlet adapter pipe 12 has a transfer channel 121. The inlet channel 111 and the transfer channel 121 are connected, allowing external liquid to enter the transfer channel 121 through the inlet channel 111. The valve body 13 has a valve body channel 138, and the outlet pipe 14 has an outlet channel 141. The valve body channel 138 and the outlet channel 141 are connected, allowing fluid from human tissue or organs to be discharged through the valve body channel 138 and out of the outlet channel 141. The valve body 13 includes a side wall 132 and a bottom wall 133, which together form a valve body channel 138. An insertion hole 136 is provided in the bottom wall 133, penetrating the bottom wall 133. The insertion tube 4 passes through the insertion hole 136 and thus through the valve body channel 138. The endoscope outer tube 5 is connected to the valve body channel 138. The inlet pipe 11 and outlet pipe 14 are located on opposite sides of the side wall 132 and are symmetrically arranged about the center line A of the valve body 13. Fluid from human tissue or organs enters the valve body channel 138 through the endoscope outer tube 5 and is finally discharged through the outlet channel 141. Since a light source and a camera are provided on the tip 6, cables for the light source and camera need to be installed. Therefore, a cable hole 137 is also provided in the bottom wall 133. The cables for the light source and camera pass through the cable hole 137 through the gap between the endoscope outer tube 5 and the insertion tube 4, and are finally connected to the corresponding external device. After the cable passes through the cable hole 137, glue is used to fill the gap between the cable and the cable hole 137 to prevent liquid from flowing out of the cable hole 137. The symmetrical arrangement of the inlet pipe 11 and the outlet pipe 14 makes the handle of this endoscope more flexible to rotate around the axis, more convenient to operate, and provides a larger operating space compared to a pistol-type endoscope.

[0036] The handle housing 8 includes an upper housing 82 and a lower housing 83, which are fixedly connected, preferably by snap-fit. Both the upper housing 82 and the lower housing 83 have protruding ribs 84, and the valve body 13 is fixed to the ribs 84. Both the upper housing 82 and the lower housing 83 have through holes 85, through which the inlet pipe 11 and the outlet pipe 14 pass for easy connection to external water pipes.

[0037] The water inlet adapter 2 is connected to the water inlet adapter pipe 12 via a hose 3 and to the valve body 13 via an insertion pipe 4. External liquid enters the water inlet adapter 2 through the hose 3. The water inlet adapter 2 includes a first pipe 21 and a second pipe 22 connected to each other. The first pipe 21 is provided with a first channel 211, and the second pipe 22 is provided with a second channel 221. The first channel 211 and the second channel 221 are connected, allowing external liquid to enter the second channel 221 through the first channel 211. The first pipe 21 is fixedly connected to the hose 3. Preferably, the hose 3 is sleeved on the first pipe 21 for easy replacement. One end of the second pipe 22 is fixedly connected to the insertion pipe 4, and the port of the insertion pipe 4 is inserted into the second pipe 22. The other end of the second pipe 22 is fixedly connected to the guide end 7. The second pipe 22 has a plurality of mounting keys 222 protruding from it, and the guide end 7 has mounting grooves 71 corresponding to the plurality of mounting keys 222. The mounting keys 222 are snapped into the mounting grooves 71.

[0038] The water inlet adapter 2 also includes a silicone baffle 23, which is fitted onto the other end of the second pipe 22. For easy instrument entry, the silicone baffle 23 is preferably a cross-shaped opening silicone baffle, which is completely closed when no instrument is entering. The water inlet adapter 2 also includes a sealing ring 24, which is fixedly connected to the guide end 7 and abuts against the silicone baffle 23. The guide end 7 has a boss 72, and the sealing ring 24 is mounted on the boss 72. When an instrument enters, it passes through the guide end 7 and enters the insertion tube 4 through the cross-shaped silicone baffle. The pressure generated between the sealing ring 24 and the cross-shaped silicone baffle prevents external liquid from leaking through the gap between the cross-shaped silicone baffle and the instrument. Simultaneously, the sealing ring 24 ensures that the instrument always passes perpendicularly through the cross-shaped silicone baffle, thus preventing increased leakage due to the instrument's tilted angle when passing through the cross-shaped silicone baffle.

[0039] One end of the endoscope tube 5 is housed in the valve body 13, and the other end is provided with several water inlets 51 so that the fluid of human tissue or organ flows into the endoscope tube 5 from the water inlets 51.

[0040] The tip 6 has an installation hole 61 that extends through the tip 6. The end of the insertion tube 4 is installed in the installation hole 61 so that external liquid flows out of the installation hole 61 and into human tissue or organ.

[0041] External fluid enters the transition channel 121 from the inlet channel 111 through the water pipe connected to the inlet pipe 11, then flows sequentially through the hose 3 into the first channel 211 and the second channel 221, and then into the insertion tube 4 connected to the inlet adapter 2. Since the end of the insertion tube 4 is installed in the mounting hole 61 of the tip 6, the external fluid finally enters the human tissue or organ through the mounting hole 61. Fluid from the human tissue or organ enters the endoscope outer tube 5 through the water inlet 51, flows into the valve body channel 138 through the endoscope outer tube 5, and then finally exits the endoscope through the water pipe connected to the outlet pipe 141. Because the inlet pipe 11 and the outlet pipe 14 are symmetrically arranged on the multi-way valve 1, the force on the endoscope handle is uniform after the multi-way valve 1 is connected to the water pipe. This avoids the operator from having to exert continuous force to maintain the overall balance of the instrument, which would cause operator fatigue and reduce control accuracy, thus reducing potential risks to the patient during the operation.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An endoscope water inlet / outlet mechanism, characterized in that, include: A multi-way valve (1) includes an inlet pipe (11), an inlet adapter pipe (12), a valve body (13), and an outlet pipe (14). The inlet pipe (11) is provided with an inlet channel (111), the inlet adapter pipe (12) is provided with a transfer channel (121), the inlet channel (111) is connected to the transfer channel (121), the valve body (13) is provided with a valve body channel (138), and the outlet pipe (14) is provided with an outlet channel (141), the valve body channel (138) is connected to the outlet channel (141), and the inlet pipe (11) and the outlet pipe (14) are symmetrically arranged on the valve body (13). Water inlet adapter (2), which is connected to the water inlet adapter pipe (12) via a hose (3) and to the valve body (13) via an insertion pipe (4); An endoscope outer tube (5) has one end housed in the valve body (13) and the other end has a water inlet (51) so that liquid flows into the endoscope outer tube (5) from the water inlet (51). The multi-way valve (1) is connected to the water inlet adapter (2) through the hose (3). One end of the insertion tube (4) is fixed on the water inlet adapter (2), and the other end passes through the multi-way valve (1). One end of the endoscope outer tube (5) is fixed in the multi-way valve (1) and the insertion tube (4) is accommodated in the endoscope outer tube (5).

2. The endoscope water inlet / outlet mechanism according to claim 1, characterized in that, The valve body (13) includes a side wall (132) and a bottom wall (133). The inlet pipe (11) and the outlet pipe (14) are located on opposite sides of the side wall (132) and are symmetrically arranged about the center line (A) of the valve body (13).

3. The endoscope water inlet / outlet mechanism according to claim 2, characterized in that, The bottom wall (133) has an insertion hole (136) that penetrates the bottom wall (133) and the insertion tube (4) passes through the insertion hole (136).

4. The endoscope water inlet / outlet mechanism according to claim 3, characterized in that, The sidewall (132) and the bottom wall (133) together form a valve body channel (138), the insertion tube (4) passes through the valve body channel (138), and the endoscope outer tube (5) is connected to the valve body channel (138).

5. The endoscope water inlet / outlet mechanism according to claim 1, characterized in that, The water inlet adapter (2) includes a first pipe (21) and a second pipe (22) connected to each other. The first pipe (21) is provided with a first channel (211), and the second pipe (22) is provided with a second channel (221). The first channel (211) and the second channel (221) are connected to each other.

6. The endoscope water inlet / outlet mechanism according to claim 5, characterized in that, The first pipe (21) is fixedly connected to the hose (3), and one end of the second pipe (22) is fixedly connected to the insertion tube (4).

7. The endoscope water inlet / outlet mechanism according to claim 6, characterized in that, The endoscope water inlet and outlet mechanism also includes a guide end (7), which is fixedly connected to the other end of the second pipe (22).

8. The endoscope water inlet / outlet mechanism according to claim 7, characterized in that, The water inlet adapter (2) also includes a silicone baffle (23), which is fitted onto the other end of the second pipe (22).

9. The endoscope water inlet / outlet mechanism according to claim 8, characterized in that, The water inlet adapter (2) also includes a sealing ring (24), which is fixedly connected to the guide end (7) and abuts against the silicone baffle (23).

10. The endoscope water inlet / outlet mechanism according to claim 1, characterized in that, The endoscope water inlet and outlet mechanism also includes a tip (6), on which a mounting hole (61) is provided. The mounting hole (61) penetrates the tip (6), and the other end of the insertion tube (4) is installed in the mounting hole (61) so that liquid flows out of the insertion tube (4) from the mounting hole (61).

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