Anti-bending waterway connection structure

Abstract

The present invention belongs to the field of medical device technology, and in particular, relates to an anti-bending waterway connection structure. The present invention aims at the problem that the divided-chamber waterway structure in the prior art is relatively complex as a whole, is not easy to set up, and a large number of sealing rings are used for sealing, resulting in the need to apply a large force when rotating, which is inconvenient to operate. The present invention provides an anti-bending waterway connection structure, including an outer shell and an endoscope connected to the outer shell, the outer shell is provided with a water inlet joint and a water outlet joint, the end of the endoscope away from the outer shell has a water inlet and a water return port, and a relatively independently arranged first water inlet hose and a second water inlet hose are provided between the water inlet joint and the endoscope, the first water inlet hose and the second water inlet hose are connected, and one end of the first water inlet hose is connected to the water inlet joint. The present invention adopts a hose connection method to realize the erection of the waterway, so that there is no need to set a large number of sealing rings inside the hysteroscope to ensure the sealing of the internal cavity, which is convenient for operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an anti-bending waterway connection structure. Background Art

[0002] Hysteroscopy is a new, minimally invasive gynecological diagnosis and treatment technology. It is an endoscope used for intrauterine examination and treatment. It is easy to observe and diagnose the entire uterine cavity. The examination process is fast, painless, and does not hurt the uterus. During hysteroscopic surgery, water needs to be injected into the uterus through the hysteroscope to expand the uterine cavity for easy observation of the surgical process. This requires a water system including a water inlet pipe and a water return pipe to be set up inside the hysteroscope.

[0003] Most of the waterway systems in the prior art adopt a split-chamber structure. Figure 5 As shown, the interior includes a first chamber a and a second chamber b separated by a sealing ring c, and two waterway interfaces of the endoscope d are respectively connected to the first chamber a and the second chamber b. Although this structure can also form two relatively independent waterways to achieve water inlet and water return, its overall structure is relatively complex, the internal space of the hysteroscope is limited and it is not easy to set up, and a large number of sealing rings are used for sealing, resulting in the need to apply a large force when rotating, which is not convenient for operation. Summary of the invention

[0004] The object of the present invention is to address the above-mentioned problem and to provide an anti-bending water channel connection structure in which the hose will not bend during the rotation of the endoscope.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A bending-proof waterway connection structure, comprising an outer shell and an endoscope connected to the outer shell, the outer shell being provided with a water inlet joint and a water outlet joint, the end of the endoscope away from the outer shell being provided with a water inlet and a water return port, a first water inlet hose and a second water inlet hose being relatively independently arranged between the water inlet joint and the endoscope, the first water inlet hose and the second water inlet hose being connected, one end of the first water inlet hose being connected to the water inlet joint, one end of the second water inlet hose being connected to the endoscope and being connected to the water inlet, a first water return hose and a second water return hose being relatively independently arranged between the water outlet joint and the endoscope, the first water return hose and the second water return hose being connected, one end of the first water return hose being connected to the water outlet joint, one end of the second water return hose being connected to the endoscope and being connected to the water return port;

[0007] Or the water inlet connector and the endoscope tube as well as the water outlet connector and the endoscope tube are connected via a hose, and the middle of the hose is directly or indirectly connected to the outer shell via at least one fixed structure.

[0008] The anti-bending water channel connection structure also includes an installation plate having a water cavity inside, and one end of the first water inlet hose, the second water inlet hose, the first water return hose and the second water return hose are all connected to the installation plate and communicate with the water cavity.

[0009] In the above-mentioned anti-bending waterway connection structure, the water cavity includes an inlet cavity and an outlet cavity isolated from each other, the first inlet hose and the second inlet hose are connected through the inlet cavity, and the first return hose and the second return hose are connected through the outlet cavity.

[0010] In the above-mentioned anti-bending water channel connection structure, the mounting plate is fixedly connected to the outer shell and is located inside the outer shell.

[0011] The above-mentioned anti-bending water channel connection structure also includes a rotating knob connected to one end of the endoscope for driving the endoscope to rotate. The mounting plate is connected to the side of the outer shell away from the rotating knob. The endoscope passes through the mounting plate and the axis of the endoscope passes through the center of the mounting plate.

[0012] In the above-mentioned anti-bending water channel connection structure, the side surface of the rotating knob close to the endoscope has a limit ring recessed into the rotating knob, and a limit block protrudes from the surface of the limit ring. Rotating the rotating knob can press the limit block onto the outer shell.

[0013] In the above-mentioned anti-bending water channel connection structure, the curvature of the limit block is less than 20 degrees.

[0014] In the above-mentioned anti-bending waterway connection structure, the endoscope comprises an inner tube and an outer tube which are socketed with each other, one end of the inner tube is provided with a water inlet, and the other end is connected to the second water inlet hose, one end of the outer tube is provided with a water return port, and the other end is connected to the second water return hose.

[0015] In the above-mentioned anti-bending water channel connection structure, the axis center line of the inner tube and the axis center line of the outer tube coincide with each other.

[0016] In the above-mentioned anti-bending waterway connection structure, the water inlet joint is provided with a water inlet valve for adjusting the opening of the water inlet joint, and the water outlet joint is provided with a water outlet valve for adjusting the opening of the water outlet joint, and the opening of the water inlet joint is greater than the opening of the water outlet joint.

[0017] In the above-mentioned anti-bending water channel connection structure, the second water inlet hose and the second water return hose are located on both sides of the endoscope, and the length of the second water inlet hose is longer than the straight-line distance of the second water inlet hose connection point, and the length of the second water return hose is longer than the straight-line distance of the second water return hose connection point.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The present invention adopts a hose connection method to realize the construction of the waterway, so that a large number of sealing rings do not need to be arranged inside the hysteroscope to ensure the sealing of the internal cavity, which is convenient for operation.

[0020] 2. The hose of the present invention adopts a multi-section independent structure or is fixed in the middle by a fixed structure, which reduces the freedom of the hose to swing during rotation, thereby preventing the problem of hose bending causing waterway blockage.

[0021] 3. The second water inlet hose and the second water return hose of the present invention are located on both sides of the endoscope, and their length is longer than the straight-line distance from the mounting plate to the connection point between the hose and the endoscope, so that there is a margin during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention after being applied to hysteroscopy;

[0023] Figure 2 It is a schematic diagram of the structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of another perspective of the present invention;

[0025] Figure 4 is a cross-sectional view of a portion of the structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the waterway structure of the hysteroscope in the prior art;

[0027] In the figure: outer shell 1, endoscope 2, water inlet joint 3, water outlet joint 4, water inlet 5, water return port 6, first water inlet hose 7, second water inlet hose 8, first water return hose 9, second water return hose 10, water discharge cavity 11, mounting plate 12, water inlet cavity 13, water outlet cavity 14, rotating knob 15, limit ring 16, limit block 17, water inlet valve 18, water outlet valve 19, inner tube 21, outer tube 22. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Combination Figure 1-3As shown, an anti-bending waterway connection structure comprises an outer shell 1 and an endoscope 2 connected to the outer shell 1, the outer shell 1 is provided with a water inlet joint 3 and a water outlet joint 4, the end of the endoscope 2 away from the outer shell 1 has a water inlet 5 and a water return port 6, and a first water inlet hose 7 and a second water inlet hose 8 are relatively independently arranged between the water inlet joint 3 and the endoscope 2, the first water inlet hose 7 and the second water inlet hose 8 are connected, one end of the first water inlet hose 7 is connected to the water inlet joint 3, and one end of the second water inlet hose 8 is connected to the endoscope 2 and connected to the inlet joint 3. The water inlet 5 is connected, and a relatively independently arranged first water return hose 9 and a second water return hose 10 are provided between the water outlet joint 4 and the endoscope 2, the first water return hose 9 and the second water return hose 10 are connected, one end of the first water return hose 9 is connected to the water outlet joint 4, and one end of the second water return hose 10 is connected to the endoscope 2 and connected to the water return port 6; or the water inlet joint 3 and the endoscope 2 and the water outlet joint 4 and the endoscope 2 are connected by a hose, and the middle part of the hose is directly or indirectly connected to the outer shell 1 through at least one fixed structure. Among them, the fixed structure can be selected from some commonly used structures in the prior art, for example, it can be a curved elbow, the outer side of the elbow is directly or indirectly connected to the outer shell 1, and the hose is routed inside the elbow to achieve the restriction of the hose position at this point.

[0030] The present invention, when in use, water from an external water source is connected through a water inlet connector 3, flows into the endoscope 2 through the first water inlet hose 7 and the second water inlet hose 8 in sequence, and enters the patient's uterine cavity through the water inlet 5 at the end of the endoscope 2, so that the uterine cavity is enlarged. The water in the uterine cavity is returned through the water return port 6, and is transported to the water outlet connector 4 through the endoscope 2, the second water return hose 10 and the first water return hose 9 in sequence to realize water outlet. Therefore, the present invention adopts a hose connection method to realize the erection of the waterway, so that a large number of sealing rings are not required to be set inside the hysteroscope to ensure the sealing of the internal cavity, which is convenient for operation. At the same time, the hose of the present invention adopts a multi-stage independent structure or a fixed structure in the middle position to reduce the degree of freedom of the hose swinging during the rotation process, thereby preventing the problem of hose bending causing waterway blockage. The dual waterway system adopted by the present invention can ensure that the water inside and outside the uterine cavity can form a cycle, thereby ensuring that the water in the uterine cavity is relatively clear and the field of vision is clear.

[0031] Combination Figure 1 and Figure 3 As shown, it also includes a mounting plate 12 with a water cavity 11 inside, and a sealing cover is provided on one side of the mounting plate 12 to ensure the sealing of the water cavity 11, and one end of the first water inlet hose 7, the second water inlet hose 8, the first water return hose 9 and the second water return hose 10 are all connected to the mounting plate 12 and communicate with the water cavity 11.

[0032] Specifically, the water discharge cavity 11 includes an inlet cavity 13 and an outlet cavity 14 which are isolated from each other. The first inlet hose 7 and the second inlet hose 8 are connected via the inlet cavity 13 , and the first return hose 9 and the second return hose 10 are connected via the outlet cavity 14 .

[0033] The mounting plate 12 gathers the first water inlet hose 7, the second water inlet hose 8, the first water return hose 9 and the second water return hose 10 into a smaller area, and at the same time realizes the two-way connection between the water inlet hoses 7, 8 and the water return hoses 9, 10 through two mutually isolated cavities 13, 14 inside, further simplifying the waterway erection structure and facilitating installation in the limited space inside the hysteroscope.

[0034] like Figure 1 As shown, the mounting plate 12 is fixedly connected to the outer shell 1 and is located inside the outer shell 1. The mounting plate 12 is fixedly arranged inside the outer shell 1 to prevent the mounting plate 12 from moving or rotating through the hose during the rotation of the endoscope 2, further reducing the freedom of the hose to swing.

[0035] like Figure 3 As shown, it also includes a rotating knob 15 connected to one end of the endoscope 2 for driving the endoscope 2 to rotate, the mounting plate 12 is connected to the side of the outer shell 1 away from the rotating knob 15, the endoscope 2 passes through the mounting plate 12 and the axis of the endoscope 2 passes through the center of the mounting plate 12.

[0036] Since the second water inlet hose 8 and the second water return hose 10 are connected to the endoscope 2, when the endoscope 2 passes through the mounting plate 12 and the axis of the endoscope 2 passes through the center of the mounting plate 12, the second water inlet hose 8 and the second water return hose 10 are in an almost horizontal state. The water inlet connector 3 and the water outlet connector 4 are mostly arranged at the bottom of the outer shell 1, such as Figure 1 As shown, the first water inlet hose 7 and the first water return hose 9 are in an almost vertical state, thereby reducing the possibility of mutual interference between the hoses and further avoiding the problem of pipe bending.

[0037] like Figure 1 As shown, the rotating knob 15 has a stop ring 16 recessed into the rotating knob 15 on one side surface close to the endoscope 2, and a stop block 17 protrudes from the surface of the stop ring 16. The stop block 17 can be pressed against the outer shell 1 by rotating the rotating knob 15. Preferably, the arc of the stop block 17 is less than 20 degrees. In this way, the rotating knob 15 can be rotated to a large angle of about 340 degrees, thereby ensuring the adjustment of the field of view during hysteroscopic surgery.

[0038] Preferably, the endoscope 2 is a curved tube, that is, one end of the endoscope 2 has a certain curvature bent to one side. In this way, during the rotation process, the visible area of ​​the endoscope will be greatly offset with the rotation, so that the endoscope can obtain a larger field of view by simply rotating the knob 15, without adjusting the position of the hysteroscope as a whole, which is convenient for surgical operation.

[0039] like Figure 4 As shown, the endoscope 2 includes an inner tube 21 and an outer tube 22 which are sleeved with each other, the inner tube 21 is provided with a water inlet 5 at one end, and the other end is connected to the second water inlet hose 8, the outer tube 22 is provided with a water return port 6 at one end, and the other end is connected to the second water return hose 10. Preferably, the axis center line of the inner tube 21 and the axis center line of the outer tube 22 coincide with each other.

[0040] like Figure 1 As shown, the water inlet joint 3 is provided with a water inlet valve 18 for adjusting the opening of the water inlet joint 3, and the water outlet joint 4 is provided with a water outlet valve 19 for adjusting the opening of the water outlet joint 4, and the opening of the water inlet joint 3 is greater than the opening of the water outlet joint 4. The water inlet valve 18 and the water outlet valve 19 adjust the openings of the water inlet joint 3 and the water outlet joint 4 to ensure that the opening of the water inlet joint 3 is greater than the opening of the water outlet joint 4, thereby ensuring that there is a certain water pressure in the uterine cavity and that the uterine cavity has a certain expansion degree.

[0041] like Figure 1 As shown, the second water inlet hose 8 and the second water return hose 10 are located on both sides of the endoscope, and the length of the second water inlet hose 8 is longer than the straight-line distance of the connection point of the second water inlet hose 8, and the length of the second water return hose 10 is longer than the straight-line distance of the connection point of the second water return hose 10. That is, the second water inlet hose 8 and the second water return hose 10 of the present invention are located on both sides of the endoscope 2, and the length is longer than the straight-line distance from the mounting plate 12 to the connection point between the hose and the endoscope 2, so that a margin can be left during the rotation process.

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0043] Although the present invention uses more terms such as outer shell 1, endoscope 2, water inlet joint 3, water outlet joint 4, water inlet 5, water return port 6, first water inlet hose 7, second water inlet hose 8, first water return hose 9, second water return hose 10, water discharge cavity 11, mounting plate 12, water inlet cavity 13, water outlet cavity 14, rotating knob 15, limiting ring 16, limiting block 17, water inlet valve 18, water outlet valve 19, inner tube 21, outer tube 22, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A bending-proof waterway connection structure, comprising an outer shell (1) and an endoscope (2) connected to the outer shell (1), the outer shell (1) being provided with a water inlet joint (3) and a water outlet joint (4), and the end of the endoscope (2) away from the outer shell (1) being provided with a water inlet (5) and a water return port (6), characterized in that: A first water inlet hose (7) and a second water inlet hose (8) are provided between the water inlet joint (3) and the endoscope (2), the first water inlet hose (7) and the second water inlet hose (8) are connected, one end of the first water inlet hose (7) is connected to the water inlet joint (3), one end of the second water inlet hose (8) is connected to the endoscope (2) and is connected to the water inlet (5), and a first water return hose (9) and a second water return hose (10) are provided between the water outlet joint (4) and the endoscope (2), the first water return hose (9) and the second water return hose (10) are connected, one end of the first water return hose (9) is connected to the water outlet joint (4), one end of the second water return hose (10) is connected to the endoscope (2) and is connected to the water return port (6); It also includes a mounting plate (12) having a water discharge cavity (11) therein, wherein one end of the first water inlet hose (7), the second water inlet hose (8), the first water return hose (9) and the second water return hose (10) are all connected to the mounting plate (12) and communicate with the water discharge cavity (11); The water discharge cavity (11) comprises a water inlet cavity (13) and a water outlet cavity (14) which are isolated from each other; the first water inlet hose (7) and the second water inlet hose (8) are connected via the water inlet cavity (13); and the first water return hose (9) and the second water return hose (10) are connected via the water outlet cavity (14); It also includes a rotating knob (15) connected to one end of the endoscope (2) for driving the endoscope (2) to rotate, the mounting plate (12) being connected to a side of the outer shell (1) away from the rotating knob (15), the endoscope (2) passing through the mounting plate (12) and the axis of the endoscope (2) passing through the center of the mounting plate (12); The endoscope (2) comprises an inner tube (21) and an outer tube (22) which are sleeved together, wherein one end of the inner tube (21) is provided with a water inlet (5) and the other end is connected to a second water inlet hose (8), and one end of the outer tube (22) is provided with a water return port (6) and the other end is connected to a second water return hose (10); When the endoscope tube (2) passes through the mounting plate (12) and the axis of the endoscope tube (2) passes through the center of the mounting plate (12), the second water inlet hose (8) and the second water return hose (10) are almost in a horizontal state, the water inlet joint (3) and the water outlet joint (4) are arranged at the bottom of the outer shell (1), and the first water inlet hose (7) and the first water return hose (9) are almost in a vertical state.

2. The anti-bending waterway connection structure according to claim 1, characterized in that: The mounting plate (12) is fixedly connected to the outer shell (1) and is located inside the outer shell (1).

3. The anti-bending waterway connection structure according to claim 1, characterized in that: The surface of the rotating knob (15) on one side close to the endoscope (2) has a limit ring (16) recessed into the rotating knob (15), and a limit block (17) protrudes from the surface of the limit ring (16). The limit block (17) can be pressed onto the outer shell (1) by rotating the rotating knob (15); the curvature of the limit block (17) is less than 20 degrees.

4. The anti-bending waterway connection structure according to claim 1, characterized in that: The axis center line of the inner tube (21) and the axis center line of the outer tube (22) coincide with each other.

5. The anti-bending waterway connection structure according to claim 1, characterized in that: The water inlet joint (3) is provided with a water inlet valve (18) for adjusting the opening of the water inlet joint (3), and the water outlet joint (4) is provided with a water outlet valve (19) for adjusting the opening of the water outlet joint (4), and the opening of the water inlet joint (3) is greater than the opening of the water outlet joint (4).

6. The anti-bending waterway connection structure according to claim 1, characterized in that: The second water inlet hose (8) and the second water return hose (10) are located on both sides of the endoscope, and the length of the second water inlet hose (8) is longer than the straight-line distance of the second water inlet hose (8) connection point, and the length of the second water return hose (10) is longer than the straight-line distance of the second water return hose (10) connection point.

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