High-definition image transmission catheter suitable for endoscope

Abstract

The utility model relates to the technical field of medical instruments, in particular to a high-definition image transmission catheter suitable for an endoscope, which comprises a catheter, a cavity separator, a liquid inlet channel and an instrument channel, one end of the catheter is connected with the cavity separator coaxial with the catheter, the cavity separator is of a conical structure, and the liquid inlet channel is communicated with the instrument channel. The end, with the smaller outer diameter, of the cavity separator is communicated with the catheter, and the end, with the larger outer diameter, of the cavity separator is connected with an operating handle; the top and the bottom of the outer wall of the cavity separator are both connected with the liquid inlet channels, and one side of the outer wall of the cavity separator is connected with the instrument channel. By arranging the two liquid inlet channels, the liquid inlet efficiency can be improved, liquid, gas and solid residues generated in the endoscopy process can be more effectively attracted and removed, clear view is ensured, and therefore examination and treatment can be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to a high-definition image transmission catheter suitable for endoscopes. Background Art

[0002] An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. It has image sensors, optical lenses, light sources, mechanical devices, etc. It can enter the stomach through the mouth or enter the body through other natural orifices. Endoscopes can be used to see lesions that cannot be displayed by X-rays, so they are very useful to doctors. At present, endoscopes usually have only one liquid inlet channel. In some cases, the liquid inlet efficiency is not enough, which affects the surgical field of view and the progress of inspection and treatment. In addition, if the liquid inlet channel is blocked, inspection or treatment cannot be carried out. During the use of the endoscope, due to different working angles and working environments, users of single-handled endoscopes are sometimes very uncomfortable to hold and it is inconvenient to observe the display screen, which affects the work process.

[0003] In view of the above problems, the present invention proposes a high-definition image transmission catheter suitable for endoscopes. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a high-definition image transmission catheter suitable for endoscopes. By setting two liquid inlet channels, the liquid inlet efficiency can be improved, and the liquid, gas and solid residues generated during the endoscopic examination can be more effectively attracted and removed, ensuring a clear field of view, so that examination and treatment can be carried out smoothly.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted by this utility model is:

[0006] The utility model discloses a high-definition image transmission catheter suitable for an endoscope, comprising a catheter, a cavity separator, a liquid inlet channel and an instrument channel. One end of the catheter is connected to the cavity separator coaxial with the catheter, the cavity separator is in a conical structure, the end with a smaller outer diameter is connected to the catheter, and the end with a larger outer diameter of the cavity separator is connected to an operating handle; the top and bottom of the outer wall of the cavity separator are both connected to the liquid inlet channel, and one side of the outer wall of the cavity separator is connected to the instrument channel.

[0007] The liquid inlet channel and the instrument channel are arranged at an angle, and the angle between the liquid inlet channel and the cavity separator is 40-45 degrees.

[0008] An elliptical connecting groove is provided on the end face of the cavity separator with a larger outer diameter, and a connecting block matching the shape of the connecting groove is provided on the end of the operating handle. Limiting holes are provided on both sides of the outer wall of the connecting block, and automatic limiting mechanisms that match and engage with the limiting holes are provided on the inner walls of both sides of the connecting groove.

[0009] The automatic limiting mechanism includes a limiting block, a limiting groove, an unlocking rod and a compression spring. The limiting block is a square structure, and its outer portion forms a wedge-shaped structure whose width gradually increases from the outer end to the inner end. The inner walls on both sides of the connecting groove are provided with limiting grooves with a cross-sectional shape identical to the internal cross-sectional shape of the limiting block. The inner end face of the limiting block is connected to the inner end of the unlocking rod, and the outer end of the unlocking rod passes through the outer wall of the cavity separator; the compression spring is mounted on the outer wall of the inner end of the unlocking rod, one end of the compression spring is connected to the end wall of the limiting groove, and the other end of the compression spring is connected to the inner end face of the limiting block.

[0010] The outer end of the unlocking rod is connected to a power-assisting block, the outer diameter of the power-assisting block is larger than the outer diameter of the unlocking rod, and a gap is provided between the inner wall of the power-assisting block and the outer wall of the cavity separator.

[0011] One end of the operating handle is connected to the cavity separator, and the other end of the operating handle is connected to the display screen. An operating portion is provided on one outer wall of the operating handle, and a handle groove for placing an auxiliary handle is provided on the other outer wall of the operating handle. A fixed shaft is provided between the rear ends of the inner walls on both sides of the handle groove, and an axis hole for the fixed shaft to pass through is provided on the rear end side wall of the auxiliary handle.

[0012] The beneficial effects of the present invention are:

[0013] (1) The present invention can improve the efficiency of liquid inlet by setting up two liquid inlet channels, more effectively attract and remove liquid, gas and solid residues generated during endoscopic examination, ensure a clear field of view, and thus smoothly carry out examination and treatment;

[0014] (2) The utility model facilitates the quick connection between the operating handle and the cavity separator by setting an automatic limit mechanism, which facilitates the rapid installation and removal of the equipment and improves work efficiency;

[0015] (3) When it is inconvenient to hold the operating handle during use of the endoscope, the auxiliary handle can be rotated out of the handle slot to facilitate the user to hold and observe the display screen more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2This is a schematic diagram of the connection between the cavity separator and the operating handle of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the automatic limiting mechanism in the present utility model;

[0019] Figure 4 It is a schematic diagram of the rotation of the auxiliary handle in the utility model.

[0020] In the figure: 1 catheter, 2 cavity separator, 3 liquid inlet channel, 4 instrument channel, 5 operating handle, 6 connecting groove, 7 connecting block, 8 automatic limit mechanism, 9 display screen, 10 operating part, 11 auxiliary handle, 12 handle groove, 13 fixed shaft, 71 limit hole, 81 limit block, 82 limit groove, 83 unlocking lever, 84 compression spring, 85 power assist block. DETAILED DESCRIPTION

[0021] The utility model is further described below:

[0022] See also Figure 1-4 ,

[0023] The utility model discloses a high-definition image transmission catheter suitable for endoscopes, comprising a catheter 1, a cavity separator 2, a liquid inlet channel 3 and an instrument channel 4, wherein one end of the catheter 1 is connected to the cavity separator 2 coaxial therewith, the cavity separator 2 is tapered, the end with a smaller outer diameter thereof is communicated with the catheter 1, and the end with a larger outer diameter of the cavity separator 2 is connected to an operating handle 5; the top and bottom of the outer wall of the cavity separator 2 are both connected to the liquid inlet channel 3, and one side of the outer wall of the cavity separator 2 is connected to the instrument channel 4. By providing two liquid inlet channels 3, the liquid inlet efficiency can be improved, and the liquid, gas and solid residues generated during the endoscopic examination process can be more effectively attracted and removed, ensuring a clear field of view, thereby smoothly conducting inspections and treatments; and when one liquid inlet channel 3 is blocked or fails, the other liquid inlet channel can be able to normally inlet liquid.

[0024] Furthermore, the liquid inlet channel 3 and the instrument channel 4 are arranged at an angle, and the angle between the liquid inlet channel 3 and the cavity separator 2 is 40-45 degrees, which facilitates the operation of instruments and liquid to pass through the instrument channel 4 and the liquid inlet channel 3 more conveniently and smoothly into the catheter 1.

[0025] Furthermore, an elliptical connecting groove 6 is provided on the end face of the cavity separator 2 with a larger outer diameter, and a connecting block 7 matching the shape of the connecting groove 6 is provided at the end of the operating handle 5. Limiting holes 71 are provided on both sides of the outer wall of the connecting block 7, and automatic limiting mechanisms 8 matching and engaging with the limiting holes 71 are provided on both sides of the inner walls of the connecting groove 6. By providing the automatic limiting mechanism 8, it is convenient to quickly connect the operating handle 5 and the cavity separator 2, which facilitates the rapid installation and disassembly of the equipment and improves work efficiency.

[0026] Furthermore, the automatic limit mechanism 8 includes a limit block 81, a limit groove 82, an unlocking rod 83 and a compression spring 84. The limit block 81 is a square structure, and its outer side forms a wedge-shaped structure whose width gradually increases from the outer end to the inner end. The inner walls on both sides of the connecting groove 6 are provided with the limit groove 82 with the same cross-sectional shape as the internal cross-sectional shape of the limit block 81. The inner end face of the limit block 81 is connected to the inner end of the unlocking rod 83, and the outer end of the unlocking rod 83 passes through the outer wall of the cavity separator 2; the compression spring 84 is mounted on the outer wall of the inner end of the unlocking rod 83, and one end of the compression spring 84 is connected to the end wall of the limit groove 82, and the other end of the compression spring 84 is connected to the inner end face of the limit block 81. Specifically, when it is necessary to separate the operating handle 5 from the cavity separator During quick plugging, the connecting block 7 at the end of the operating handle 5 is gradually inserted into the connecting groove 6, and the end of the connecting block 7 contacts the wedge-shaped structure outside the limiting block 81. Since the wedge-shaped structure is an inclined surface, when the end of the connecting block 7 contacts the inclined surface, the horizontal thrust will generate a thrust that pushes the wedge-shaped structure into the limiting groove 82. At this time, the compression spring 84 is in a compressed state. When the limiting hole 71 on the outer wall of the connecting block 7 moves to the bottom of the wedge-shaped structure, the restoring effect of the compression spring drives the wedge structure to be inserted into the limiting hole 71, and the two are engaged, thereby completing the quick plugging of the operating handle 5 and the cavity separator 2; when the two need to be separated, the user pulls out the outer end of the unlocking rod 83, and the unlocking rod 83 drives the wedge-shaped structure outside the limiting block 81 to disengage from the limiting hole 71, and then the user can pull out the connecting block 7.

[0027] Furthermore, the outer end of the unlocking rod 83 is connected to a boosting block 85, the outer diameter of the boosting block 85 is larger than the outer diameter of the unlocking rod 83, and a gap is provided between the inner wall of the boosting block 85 and the outer wall of the cavity separator 2. By providing the boosting block 85, the user can pull the unlocking rod 83 outward more easily and labor-savingly, thereby facilitating the separation of the operating handle 5 from the cavity separator 2.

[0028] Furthermore, one end of the operating handle 5 is connected to the cavity separator 2, and the other end of the operating handle 5 is connected to the display screen 9. An operating part 10 is provided on the outer wall of one side of the operating handle 5, and a handle groove 12 for placing an auxiliary handle 11 is provided on the outer wall of the other side of the operating handle 5. A fixed shaft 13 is provided between the rear ends of the inner walls on both sides of the handle groove 12, and an axial hole for the fixed shaft 13 to pass through is provided on the rear end side wall of the auxiliary handle 11. When it is inconvenient to hold the operating handle 5 during the use of the endoscope, the auxiliary handle 11 can be rotated out of the handle groove 12 to facilitate the user to hold and observe the display screen 9 more conveniently. Preferably, a gap is provided between the rear end end of the auxiliary handle 11 and the rear end of the handle groove 12; the angle between the axial direction of the auxiliary handle 11 and the axial direction of the handle groove 12 is 0°~125°.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformation made using the contents of the present invention specification and drawings or directly or indirectly applied in the relevant technical field shall be included in the patent protection scope of the present invention.

Claims

1. A high-definition image transmission catheter suitable for endoscopes, characterized by: The invention comprises a catheter (1), a cavity separator (2), a liquid inlet channel (3) and an instrument channel (4), wherein one end of the catheter (1) is connected to the cavity separator (2) coaxial therewith, the cavity separator (2) is in a conical structure, the end with a smaller outer diameter thereof is connected to the catheter (1), and the end with a larger outer diameter of the cavity separator (2) is connected to an operating handle (5); the top and bottom of the outer wall of the cavity separator (2) are both connected to the liquid inlet channel (3), and one side of the outer wall of the cavity separator (2) is connected to the instrument channel (4).

2. The high-definition image transmission catheter suitable for endoscope according to claim 1, characterized in that: The liquid inlet channel (3) and the instrument channel (4) are arranged at an angle, and the angle between the liquid inlet channel (3) and the cavity separator (2) is 40-45°.

3. The high-definition image transmission catheter suitable for endoscope according to claim 1, characterized in that: An elliptical connecting groove (6) is provided on the end face of the cavity separator (2) having a larger outer diameter, a connecting block (7) having a shape matching that of the connecting groove (6) is provided at the end of the operating handle (5), limiting holes (71) are provided on both sides of the outer wall of the connecting block (7), and automatic limiting mechanisms (8) that match and engage with the limiting holes (71) are provided on both sides of the inner walls of the connecting groove (6).

4. The high-definition image transmission catheter suitable for endoscope according to claim 3, characterized in that: The automatic limiting mechanism (8) comprises a limiting block (81), a limiting groove (82), an unlocking rod (83) and a compression spring (84). The limiting block (81) is a square structure, and its outer portion forms a wedge-shaped structure whose width gradually increases from the outer end to the inner end. The limiting grooves (82) having a cross-sectional shape identical to the internal cross-sectional shape of the limiting block (81) are provided on the inner walls of both sides of the connecting groove (6). The inner end surface of the limiting block (81) is connected to the inner end of the unlocking rod (83), and the outer end of the unlocking rod (83) passes through the outer wall of the cavity separator (2); the compression spring (84) is sleeved on the outer wall of the inner end of the unlocking rod (83), one end of the compression spring (84) is connected to the end wall of the limiting groove (82), and the other end of the compression spring (84) is connected to the inner end surface of the limiting block (81).

5. The high-definition image transmission catheter suitable for endoscope according to claim 4, characterized in that: The outer end of the unlocking rod (83) is connected to a boosting block (85), the outer diameter of the boosting block (85) is larger than the outer diameter of the unlocking rod (83), and a gap is provided between the inner wall of the boosting block (85) and the outer wall of the cavity separator (2).

6. The high-definition image transmission catheter suitable for endoscope according to claim 5, characterized in that: One end of the operating handle (5) is connected to the cavity separator (2), and the other end of the operating handle (5) is connected to the display screen (9). An operating portion (10) is provided on one outer wall of the operating handle (5), and a handle groove (12) for placing an auxiliary handle (11) is provided on the other outer wall of the operating handle (5). A fixed shaft (13) is provided between the rear ends of the inner walls on both sides of the handle groove (12), and an axis hole for the fixed shaft (13) to pass through is provided on the rear end side wall of the auxiliary handle (11).

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