Endoscope insertion tube adapter and endoscope operating system

Abstract

The utility model discloses an endoscope insertion tube adapter and an endoscope operating system, and the endoscope insertion tube adapter comprises a connecting tube; one end of the connecting pipe is connected with the insertion pipe, and the other end is connected with the snake bone; a spring tube mounting hole site is arranged in the connecting tube; by the adoption of the endoscope insertion tube adapter, the adapter effect can be achieved, the insertion tube is connected with the tail of the snake bone through the endoscope insertion tube adapter, and therefore the connecting precision between the insertion tube and the snake bone is improved, the yield of products is improved, and production benefits are improved; besides, by the adoption of the endoscope insertion tube adapter, the connection strength between the insertion tube and the snake bone can be improved, and control over the bending precision of the snake bone in the operation process is improved. In addition, the utility model further discloses an endoscope operating system using the endoscope insertion tube adapter.

Description

Technical Field

[0001] The utility model belongs to the field of endoscopes, and in particular relates to an endoscope insertion tube adapter and an endoscope operating system. Background Art

[0002] At present, endoscope systems are widely used in medical diagnosis. They are equipped with air and liquid delivery devices into the body cavity, which can deliver water, liquid medicine, air, etc. into the body cavity as needed. Usually, an endoscope includes a long strip insertion tube, an endoscope operating handle is provided at the end of the insertion tube close to the operator, and a visual inspection device such as a built-in camera is provided at the far end of the long strip insertion tube; in order to operate the endoscope inside the human body, the endoscope includes a bendable snake bone, and the direction of the tip of the snake bone end is adjusted by bending the snake bone, thereby changing the observation angle.

[0003] Currently, most insertion tubes are braided tubes, and the insertion tubes are connected to the plastic snake bones by bonding. However, since the bonding performance of the materials used in the snake bones is extremely poor, the control of the bending accuracy of the snake bones during operation is also poor. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides an endoscope insertion tube adapter.

[0005] The second object of the present utility model is to provide an endoscope operating system using the endoscope insertion tube adapter.

[0006] The technical solution of the utility model to solve the above technical problems is:

[0007] An endoscope insertion tube adapter comprises a connecting tube; one end of the connecting tube is connected to the insertion tube, and the other end is connected to the snake bone; a spring tube installation hole is arranged in the connecting tube.

[0008] Preferably, the connecting tube is a stepped shaft structure, wherein the end with a smaller diameter in the connecting tube is a snake bone connecting end, and the snake bone connecting end is connected to the snake bone; the end with a larger diameter in the connecting tube is an insertion tube connecting end, and the insertion tube connecting end is connected to the insertion tube.

[0009] Preferably, a positioning groove is provided on the side of the connecting end of the snake bone, and a positioning portion cooperating with the positioning groove is provided in the inner cavity of the snake bone.

[0010] Preferably, the snake bone connecting end is connected to the inner cavity of the snake bone by gluing; the insertion tube connecting end is also connected to the outer side surface of the insertion tube by gluing.

[0011] Preferably, there are four spring tube installation holes, and the angle between two adjacent spring tube installation holes among the four spring tube installation holes is 90 degrees.

[0012] An endoscope operating system comprises an endoscope handle, an insertion tube, a snake bone and a tip end, wherein the endoscope insertion tube adapter is arranged between the insertion tube and the snake bone.

[0013] Preferably, the tip is provided with a water spray port, a water / air nozzle, a lens mounting hole, a light source mounting hole and an instrument channel, wherein the light source mounting holes are divided into two groups, and the two groups of light source mounting holes are symmetrically arranged on both sides of the lens mounting hole.

[0014] Preferably, an LED lamp is installed in the light source installation hole, and a camera is installed in the lens installation hole; and both the LED lamp and the camera adopt a waterproof structure.

[0015] Preferably, the tip and the snake bone are directly bonded with glue, or connected via an endoscope tip adapter.

[0016] Preferably, the endoscope tip adapter is bonded to the tip and the snake bone by glue or by snap-fit ​​connection.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] 1. The endoscope insertion tube adapter of the utility model can play a role of adapter, so that the insertion tube is connected to the snake bone through the endoscope insertion tube adapter, thereby improving the connection accuracy and connection strength between the insertion tube and the snake bone, thereby improving the product yield and improving production efficiency.

[0019] 2. The endoscope insertion tube adapter of the utility model is provided with a spring tube installation hole for fixing the spring tube, thereby improving the control of the bending accuracy of the snake bone during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 and Figure 2 The three-dimensional structure diagrams of the endoscope insertion tube adapter of the utility model are shown in two different viewing angles.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the endoscope operating system of the utility model.

[0022] Figure 4 Schematic diagram of the structure of the front end.

[0023] Figure 5 It is a structural schematic diagram of the endoscope operating handle.

[0024] Figure 6 and Figure 7 Schematic diagram of the three-dimensional structure of the water-gas switching valve from two different perspectives.

[0025] Figure 8 This is a cross-sectional view of the water-gas switching valve (the switching button is not pressed).

[0026] Fig. 9 This is a cross-sectional view of the water-gas switching valve (the switching button has been pressed).

[0027] Fig.10 It is a schematic diagram of the structure of the cable pulling wheel group, the rotating device and the braking device.

[0028] Fig.11 It is a schematic diagram of the structure of the endoscope tip adapter. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0030] Example 1

[0031] See also Figure 1-Figure 2 The endoscope insertion tube adapter of the utility model includes a connecting tube 27; one end of the connecting tube 27 is connected to the insertion tube, and the other end is connected to the snake bone. A spring tube mounting hole 28 is provided in the connecting tube 27, and the spring tube mounting hole 28 is used to fix the spring tube 29; wherein, there are four spring tube mounting holes 28, and the angle between two adjacent spring tube mounting holes 28 of the four spring tube mounting holes 28 is 90 degrees;

[0032] In this embodiment, the connecting tube 27 is a stepped shaft structure, wherein the end with a smaller diameter in the connecting tube 27 is a snake bone connecting end 272, and the snake bone connecting end 272 is connected to the snake bone; the end with a larger diameter in the connecting tube 27 is an insertion tube connecting end 271, and the insertion tube connecting end 271 is connected to the insertion tube; in order to improve the positioning accuracy, a positioning groove 273 is provided on the side of the snake bone connecting end 272, and a positioning portion cooperating with the positioning groove 273 is provided in the inner cavity of the snake bone; when the snake bone connecting end 272 is connected to the snake bone, the positioning groove 273 cooperates with the positioning portion.

[0033] In addition, the snake bone connection end 272 is bonded to the inner cavity of the snake bone by glue; the insertion tube connection end 271 is also bonded to the outer side of the insertion tube by glue; in addition, the above connection method can also adopt a snap-on connection method.

[0034] Example 2

[0035] See also Figure 3-Figure 11 The endoscope operating system of the utility model includes an endoscope handle 36, an insertion tube 37, a snake bone 38 and a tip 30, wherein the endoscope insertion tube adapter is arranged between the insertion tube 37 and the snake bone 38; the tip 30 and the snake bone 38 are directly connected, or connected through an endoscope tip adapter 39; when the endoscope tip adapter 39 is used for connection, one end of the endoscope tip adapter 39 is glued to the tip 30, and the other end is snap-connected to the snake bone 38.

[0036] See also Figure 3-Figure 11 The tip head 30 is provided with a water spray port 32, a water / air nozzle 31, a lens mounting hole 34, a light source mounting hole 33 and an instrument channel 35, wherein the light source mounting holes 33 are divided into two groups, and the two groups of light source mounting holes 33 are symmetrically arranged on both sides of the lens mounting hole 34; the light source mounting holes 33 are installed with LED lights, and the lens mounting holes 34 are installed with cameras; the LED lights and the cameras both adopt a waterproof structure, so there is no need to install a protective cover made of transparent material on the tip head 30, thereby preventing the protective cover from falling off during the medical process and causing medical accidents.

[0037] In this embodiment, one end of the endoscope tip adapter 39 is glued to the tip 30 , and the other end is snap-connected to the snake bone 38 .

[0038] As the core precision parts of the endoscope, the serpentine 38, the tip 30 and the insertion tube 37 have high dimensional accuracy requirements. Correspondingly, the processing accuracy of the three is also high, resulting in the connection accuracy between the tip 30 and the serpentine 38, and between the insertion tube 37 and the serpentine 38 must be very high. A slight error will cause the assembled endoscope to become a waste. For example, the traditional connection method mostly uses glue bonding, but the amount of glue is also one of the key factors that determine whether the assembly of the two is qualified, which is extremely demanding for the assembly workers. Therefore, by adopting the above-mentioned endoscope tip adapter 39 and endoscope insertion tube adapter, a conversion effect can be achieved, so that the tip 30 is connected to the head end of the snake bone 38 through the endoscope tip adapter 39, and the insertion tube 37 is connected to the tail end of the snake bone 38 through the endoscope insertion tube adapter, so as to reduce the connection accuracy between the tip 30 and the snake bone 38, and the insertion tube 37 and the snake bone 38, thereby improving the product yield and improving production efficiency.

[0039] See also Figure 3-Figure 11The endoscope operating handle 36 includes a shell, a wire pulley group arranged on the shell, a rotating device for driving the wire pulley in the wire pulley group to rotate, and a braking device for braking the rotating device, wherein the water-gas switching valve 14 and the drain valve 15 are arranged on the shell.

[0040] See also Figure 3-Figure 11 The endoscope water-gas switching valve comprises a cylinder body 9, a piston 3 arranged in the cylinder body 9, and a switching mechanism for driving the piston 3 to move; the cylinder body 9 is provided with an air inlet nozzle 10, an air outlet nozzle 11, a water inlet nozzle 12 and a water outlet nozzle 13, wherein the air inlet nozzle 10, the air outlet nozzle 11, and the water inlet nozzle 12 are located on one side of the cylinder body 9 and extend obliquely downward, and the water outlet nozzle 13 is arranged on the other side of the cylinder body 9 and extends horizontally; the piston 3 is provided with a plurality of sealing rings, and the plurality of sealing rings separate the space between the inner cavity of the cylinder body 9 and the piston 3 into a plurality of independent annular cavities that constitute a part of the corresponding fluid channel ; The switching mechanism drives the piston 3 to move, so as to achieve the connection between the air inlet nozzle 10 and the air outlet nozzle 11 or the connection between the water inlet nozzle 12 and the water outlet nozzle 13; the switching mechanism includes a switching button 1 and a compression spring 2, wherein the switching button 1 is installed on the top of the piston 3, and the compression spring 2 is sleeved on the piston 3, the lower end of the compression spring 2 acts on the cylinder body 9, and the upper end acts on the switching button 1; the elastic force of the compression spring 2 prompts the switching button 1 to drive the piston 3 to move upward, so as to prompt the air inlet nozzle 10 to be connected with the air outlet nozzle 11 and to prompt the water inlet nozzle 12 and the water outlet nozzle 13 to be disconnected.

[0041] The air inlet nozzle 10, the air outlet nozzle 11, and the water inlet nozzle 12 in the endoscope water-gas switching valve in this embodiment are all located on the same side of the cylinder body 9 and extend obliquely downward; the water outlet nozzle 13 is arranged on the other side of the cylinder body 9 and extends horizontally; this is conducive to the layout of the water and gas pipelines in the endoscope operating handle, making the water and gas pipelines in the endoscope operating handle simpler and more convenient to install.

[0042] In this embodiment, the sealing rings are in four groups, which are respectively the first sealing ring 5, the second sealing ring 6, the third sealing ring 7 and the fourth sealing ring 8 from top to bottom; in addition, the piston 3 is provided with a center hole 302 between the second sealing ring 6 and the third sealing ring 7, and both sides of the center hole 302 extend to the side of the piston 3; an exhaust channel 301 is provided in the piston 3, and the lower end of the exhaust channel 301 is connected to the center hole 302, and the upper end extends vertically upward to the top of the piston 3; the switch button 1 is provided with an exhaust hole 101, and the exhaust hole 101 is connected to the exhaust channel 301.

[0043] See also Figure 3-Figure 11 The air inlet nozzle 10, the air outlet nozzle 11, the water inlet nozzle 12 and the water outlet nozzle 13 are all provided with a connecting portion for connecting the water and gas pipeline, which is used to realize the communication between the air inlet nozzle 10, the air outlet nozzle 11, the water inlet nozzle 12 and the water outlet nozzle 13 and the water and gas pipeline, and the connecting portion is a boss structure, which is helpful to prevent the water and gas pipeline from escaping from the connecting portion.

[0044] See also Figure 3-Figure 11 A protective rubber sleeve 4 is provided on the outer side of the cylinder body 9.

[0045] See also Figure 3-Figure 11 The working principle of the endoscope water-gas switching valve is:

[0046] In the initial state, the piston 3 is at rest in the cylinder 9 (eg Figure 3 As shown), at this time, the gas of the air inlet nozzle 10 can be discharged from the air outlet nozzle 11 and the air outlet at the same time, and the water flow cannot flow between the water inlet nozzle 12 and the water outlet nozzle 13 due to the isolation of the third sealing ring 7 and the fourth sealing ring 8; when the air outlet is pressed with a finger, the gas of the air outlet is blocked at this time, so the gas of the air inlet nozzle 10 can only flow completely from the air inlet nozzle 10 to the air outlet nozzle 11;

[0047] When the switch button 1 is pressed (such as Figure 4 As described above, due to the change in the position of the sealing ring, at this time, the gas of the air inlet nozzle 10 is sealed in the cylinder body 9 by the first sealing ring 5 and the second sealing ring 6, thereby causing the pipeline between the air inlet nozzle 10 and the air outlet nozzle 11 to be disconnected, while the pipeline between the water inlet nozzle 12 and the water outlet nozzle 13 is connected, and the water flows from the water inlet nozzle 12 into the water outlet nozzle 13.

[0048] When the external force pressing the switch button 1 is released, the switch button 1 and the piston 3 return to their initial state (eg, Figure 3 The cylinder body 9 is restored to a state where the air inlet nozzle 10 and the air outlet nozzle 11 are connected. At this time, the gas enters from the air inlet nozzle 10 and flows out from the air outlet nozzle 11 and the exhaust port. At the same time, the piston 3 blocks the water flow channel, so that the pipeline between the water inlet nozzle 12 and the water outlet nozzle 13 is disconnected again.

[0049] See also Figure 3-Figure 11 A water outlet pipe 16 is installed on the water outlet nozzle 13 of the water-gas switching valve 14 .

[0050] See also Figure 3-Figure 11The sewage discharge valve 15 comprises a valve body and a valve core 153 arranged in the valve body, wherein a sewage liquid inlet 155 and a sewage liquid discharge port 154 are respectively arranged on both sides of the valve body, a sewage discharge button 152 is arranged on the top of the valve core 153, and a return spring 151 is arranged between the sewage discharge button 152 and the valve body, one end of the return spring 151 acts on the valve body, and the other end acts on the sewage discharge button 152; the elastic force of the return spring 151 causes the valve core 153 to move upward, so as to cause the sewage liquid inlet 155 and the sewage liquid discharge port 154 to be disconnected; when the sewage discharge button 152 is pressed, the valve core 153 moves downward, so that the sewage liquid inlet 155 and the sewage liquid discharge port 154 are connected, thereby realizing sewage discharge.

[0051] See also Figure 3-Figure 11 The rotating device includes a first knob 21 and a second knob 23, and the first knob 21 and the second knob 23 are respectively mounted on the mounting parts of the two groups of wire pulling wheels, and are used to drive the two groups of wire pulling wheels to rotate separately; the braking device includes a first braking knob 19 and a second braking knob 26, wherein the first braking knob 19 is used to brake the first knob 21, and the second braking knob 26 is used to brake the second knob 23; wherein a braking structure is provided between the first braking knob 19 and the first knob 21, and between the second braking knob 26 and the second knob 23; the braking structure includes a coaxially arranged driving member and a braking member, wherein a driving part is provided on the driving member, and a matching part matching with the driving part is provided on one side of the braking member, and the other side of the braking member A braking part is provided; when the first brake knob 19 or the second brake knob 26 is rotated, the brake member and the driving member rotate relative to each other, and the driving part on the driving member drives the matching part on the brake member to move axially and causes the braking part on the brake member to be pressed against the first knob 21 or the second knob 23, so as to brake the first knob 21 or the second knob 23; the matching part includes a guiding part and a limiting part, wherein the guiding part is arranged opposite to the driving part of the driving member, and the height of the guiding part gradually increases along the circumferential direction of the brake member; the limiting part is arranged at the highest point of the guiding part, and is used to limit the driving part in the driving member from continuing to rotate on the guiding part in the brake member; or the limiting part is respectively arranged at the highest point and the lowest point of the guiding part;

[0052] The specific structures of the above-mentioned wire pulley assembly, rotating device and braking device can be implemented with reference to the patents previously applied for by the applicant, namely, "a rotating braking device for an endoscope" disclosed in the utility model patent with the authorization announcement number CN219147515U and "an endoscope" disclosed in the invention patent application with the application publication number CN115813316A. The difference between this embodiment and the above-mentioned two patent applications is that:

[0053] (1) In this embodiment, there are three groups of driving parts, which are arranged at equal angles in a circle (i.e., the angle between two adjacent groups of driving parts is 120 degrees). Correspondingly, there are three groups of matching parts, which are also arranged at equal angles in a circle.

[0054] (2) In the above two patent applications, a hook portion is used to hook the first knob or the second knob to limit the axial displacement of the sleeve (i.e., the movement stroke of the sleeve driven by the reset structure), and at the same time, the first knob and the second knob are also limited to prevent axial displacement;

[0055] In the present embodiment, a first external thread section is provided at the end of the first wire pulling wheel 18, and the first knob 21 is installed on the first external thread section and locked by a first locking nut 22; a second external thread section is provided at the end of the second wire pulling wheel 17, and the second knob 23 is installed on the second external thread section and locked by a second locking nut 24; the first locking nut 22 and the second locking nut 24 are used to install and limit the first knob 21 and the second knob 23; at the same time, the braking stroke of the first brake knob 19 and the second brake knob 26 (that is, the axial displacement of the first brake slider 20 and the second brake slider 25) is also limited. Compared with the snap connection methods of the previous two patent applications, the nut locking method adopted in the utility model is not only convenient for disassembly and assembly, but also has high limiting accuracy.

[0056] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An endoscope insertion tube adapter, characterized in that: It includes a connecting tube; one end of the connecting tube is connected to the insertion tube, and the other end is connected to the snake bone; a spring tube installation hole is arranged in the connecting tube; the connecting tube is a stepped shaft structure, wherein the end with a smaller diameter in the connecting tube is the snake bone connecting end, and the snake bone connecting end is connected to the snake bone; the end with a larger diameter in the connecting tube is the insertion tube connecting end, and the insertion tube connecting end is connected to the insertion tube.

2. The endoscope insertion tube adapter according to claim 1, characterized in that: A positioning groove is arranged on the side of the connecting end of the snake bone, and a positioning part cooperating with the positioning groove is arranged in the inner cavity of the snake bone.

3. The endoscope insertion tube adapter according to claim 1, characterized in that: The snake bone connection end is connected to the inner cavity of the snake bone by gluing; the insertion tube connection end is also connected to the outer side surface of the insertion tube by gluing.

4. The endoscope insertion tube adapter according to claim 1, characterized in that: There are four spring tube installation holes, and the angle between two adjacent spring tube installation holes among the four spring tube installation holes is 90 degrees.

5. An endoscope operating system using the endoscope insertion tube adapter according to any one of claims 1 to 4, characterized in that: It comprises an endoscope handle, an insertion tube, a snake bone and a tip end, wherein the endoscope insertion tube adapter is arranged between the insertion tube and the snake bone.

6. The endoscope operating system according to claim 5, characterized in that: The tip is provided with a water spray port, a water / air nozzle, a lens mounting hole, a light source mounting hole and an instrument channel, wherein the light source mounting holes are divided into two groups, and the two groups of light source mounting holes are symmetrically arranged on both sides of the lens mounting hole.

7. The endoscope operating system according to claim 6, characterized in that: The light source installation hole is installed with an LED lamp, and the lens installation hole is installed with a camera; the LED lamp and the camera both adopt a waterproof structure.

8. The endoscope operating system according to claim 6, characterized in that: The tip and the snake bone are directly bonded with glue, or connected through an endoscope tip adapter.

9. The endoscope operating system according to claim 8, characterized in that: The endoscope tip adapter is bonded to the tip and the snake bone by glue or snap-fit ​​connection.

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