Visual dilatation catheter with three-chamber structure

Abstract

The present application relates to the technical field of medical devices, and more particularly to a visual dilatation catheter with a three-cavity structure, comprising a straight outer sleeve, a fixed button is arranged on the sidewall of the straight outer sleeve, and a scale line is arranged on one end of the straight outer sleeve; a prismatic inner wall is arranged in the straight outer sleeve, and an inner sleeve fixed button and a puncture needle fixed buckle are arranged in the straight outer sleeve; the bent outer sleeve is composed of the straight outer sleeve, the fixed button, the scale line, the prismatic inner wall, the inner sleeve fixed button and the puncture needle fixed buckle, and the scale line area is bent by 15 degrees; the catheter further comprises a straight puncture needle. The scale line is arranged on the straight outer sleeve and the bent outer sleeve, the bent inner sleeve is inclined by 30 degrees, and the bent puncture needle head is inclined by 15 degrees, which helps doctors accurately determine the depth and angle of entry in the cavity and improves the accuracy of puncture; the optical fiber in the soft inner sleeve is connected with a miniature camera, which can take real-time pictures of the cavity; the soft inner sleeve is divided into three independent channels.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a visual dilatation catheter with a three-lumen structure. Background Technology

[0002] Patent CN223900778U discloses a sexual arthroscope, which includes a sheath body with a hollow cavity, a sheath seat at the tail end, and a plug at the head end. The plug has an observation channel and an instrument channel communicating with the hollow cavity. A miniature camera is fixedly installed in the observation channel. The control line connecting the miniature camera passes through the hollow cavity and is fixed in the sheath seat. A conduit for the control line to pass through is provided at one end of the observation channel near the sheath body. The miniature camera abuts against the conduit.

[0003] In existing technologies, puncture cannulas often lack curvature, making it difficult to effectively avoid bony structures such as articular heads and reach the inside of cavities. At the same time, the cannulas lack drainage or air channels, which can easily cause swelling or emphysema in the surgical area. Summary of the Invention

[0004] Therefore, the present invention provides a visual dilation catheter with a three-lumen structure to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a visual dilatation catheter with a three-lumen structure, comprising a straight outer sleeve, a fixing button on the side wall of the straight outer sleeve, and a scale line at one end of the straight outer sleeve; a prismatic inner wall is provided inside the straight outer sleeve, and an inner sleeve fixing button and a puncture needle fixing buckle are provided inside the straight outer sleeve; the curved outer sleeve is composed of a straight outer sleeve, a fixing button, a scale line, a prismatic inner wall, an inner sleeve fixing button, and a puncture needle fixing buckle, and the area with the scale line is curved at 15 degrees; the catheter also includes a straight puncture needle, a locking key is fixedly connected to the straight puncture needle, and a puncture needle head is provided on the straight puncture needle; the curved puncture needle is composed of a straight puncture needle, a locking key, and a puncture needle head, and the puncture needle head is inclined at a certain degree.

[0006] Preferably, the conduit also includes a straight inner sleeve, which has an inner sleeve fixing button and a fixing buckle on its side wall; The inner tube sleeve is equipped with inner tube sleeve scale lines; The curved inner sleeve consists of a straight inner sleeve, an inner sleeve fixing button, and a fixing buckle. The straight inner sleeve has an inner sleeve scale line area that is set at a 30-degree angle.

[0007] Preferably, the conduit also includes an inner sleeve, on which a fixing element, a liquid-gas inlet switch, and a water-gas outlet switch are provided; The inner tube sleeve is provided with a water outlet pipe, a first suction pipe, a water inlet pipe, and a second suction pipe on its side wall; The area where the inner tube connects to the flexible inner tube has a prismatic structure. The fixing component is threaded to one end of the robotic arm; the fixing component is a screw.

[0008] Preferably, the flexible inner sleeve is divided into three channels by a dividing plate, and the three channels are respectively equipped with an optical fiber, a water outlet component, and a water inlet component. The dividing plate has an instrument channel.

[0009] Preferably, the inner wall of the channel equipped with the water outlet component and the water inlet air component is provided with multiple sets of magnetic suction plates from top to bottom; The effluent assembly prevents the leakage of the recovered liquid retained inside the second flow guide membrane; The water outlet assembly and the water inlet air assembly are used to extract and recover the liquid retained in the water outlet channel and the water pumping channel.

[0010] Preferably, the water outlet pipe is provided with a guide cavity, and a guide wheel is rotatably connected to the guide cavity through a torsion spring. The side wall of the guide wheel is connected to one end of the drive rope, and the other end of the drive rope slides through the guide cavity and enters the channel to be connected to one end of the rack.

[0011] Preferably, a limiting plate is fixedly connected inside the flow guiding cavity; The water inlet air assembly includes a first guide membrane, with a connecting pipe connected to the upper end of the first guide membrane. The connecting pipe communicates with the inner channel of the first guide membrane. Multiple sets of suction one-way valves are provided on the inner sidewall of the first guide membrane. The suction one-way valves are communicated with the channel. Magnets are provided on the four sidewalls at the outer end of the first guide membrane.

[0012] Preferably, the connecting tube is connected to the second suction tube, and the upper end of the first guide membrane is connected to the water inlet pipe.

[0013] Preferably, the water outlet assembly includes a second guide membrane, the upper end of which is connected to the water outlet air pipe, and a sandwich layer is provided inside the second guide membrane. The space inside the sandwich layer is connected to the first suction pipe through an extension pipe, and a one-way valve flap connected to the sandwich layer is provided on the inner sidewall of the second guide membrane.

[0014] Preferably, the bottom of the second flow guiding membrane is connected to the outer frame, and a gear is rotatably connected inside the outer frame via a torsion spring. The gear meshes with a rack, and the gear drives the baffle plate to rotate and connect with the outer frame.

[0015] The beneficial effects of this invention are: The straight and curved outer cannulas of this invention are equipped with scale lines, the curved inner cannula is tilted at 30 degrees, and the curved puncture needle is tilted at 15 degrees. These designs help doctors accurately determine the insertion depth and angle within the cavity, improving the accuracy of puncture. The optical fiber inside the flexible inner cannula is connected to a miniature camera, which can capture real-time images of the cavity. The flexible inner cannula is divided into three independent channels, which respectively accommodate the optical fiber, the water outlet component, and the water inlet / air inlet component, realizing the integration of visualization, flushing, and aspiration functions.

[0016] In this invention, the guide wheel inside the water outlet assembly, driven by negative pressure, can automatically open the baffle plate for suction through the cooperation of the drive rope, rack and pinion, and gear; after the negative pressure disappears, the torsion spring causes the baffle plate to automatically reset and close, effectively preventing residual liquid from leaking out; the air in the second guide membrane interlayer is drawn out through the first suction pipe, creating negative pressure inside, and with the cooperation of the one-way valve, the liquid trapped on the inner wall of the second guide membrane can be recycled for a second time, making the treatment more thorough; The inner wall of the first guide membrane in the water inlet air assembly of the present invention is provided with a magnet, which is magnetically connected to multiple sets of magnetic plates on the inner wall of the channel, thereby expanding the guide membrane as a whole during use to ensure smooth flushing or air injection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the straight outer sleeve structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the straight outer sleeve structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the puncture needle structure of the present invention; Figure 5 This is a schematic diagram of the inner tube sleeve structure of the present invention; Figure 6 This is a schematic diagram of the inner tube sleeve structure of the present invention; Figure 7 This is a schematic diagram of the flexible inner sleeve structure of the present invention; Figure 8 This is a schematic diagram of the water inlet air assembly structure of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the water inlet air assembly structure of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the internal structure of the water outlet pipe of the present invention; Figure 11 This is a schematic diagram of the water outlet component structure of the present invention; Figure 12 This is a schematic diagram of the outer frame structure of the present invention.

[0018] Among them: straight outer tube sleeve-1, curved outer tube sleeve-101, fixing button-12, scale line-13, prismatic inner wall-14, inner tube fixing button-15, puncture needle fixing buckle-16, straight puncture needle-21, curved puncture needle-22, locking key-23, puncture needle head-24, straight inner tube sleeve-31, inner tube sleeve fixing button-32, fixing buckle-33, curved inner tube sleeve-34, inner tube sleeve-41, fixing piece-42, liquid-gas inlet switch-43, water-gas outlet switch-44, water-gas outlet tube-45, first suction tube-46, water-gas inlet tube-47, second suction tube-48 49. Soft inner sleeve, 410. Prism-shaped structure, 5. Mechanical arm, 491. Dividing plate, 492. Fiber optic cable, 493. Water outlet assembly, 494. Water inlet air assembly, 495. Magnetic suction plate, 451. Flow guide cavity, 452. Flow guide wheel, 453. Limiting plate, 454. Drive rope, 4941. First flow guide membrane, 4942. Connecting pipe, 4943. Magnet, 4944. Channel, 4945. Suction one-way valve, 4931. Second flow guide membrane, 4932. Outer frame, 4932. Rack, 49321. Gear, 49322. Baffle plate, 49323. Detailed Implementation

[0019] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0020] like Figures 1 to 5 As shown, the present invention provides a visual dilatation catheter with a three-cavity structure. The catheter can be used in surgical treatment of cavity structures, such as puncture of joint cavities or foramen ovale. The puncture can be performed in advance during use. It includes an outer tube sleeve 1, and a fixing button 12 is provided on the side wall of the outer tube sleeve 1. The fixing button 12 is slidably connected to the inside of the outer tube sleeve 1. By squeezing the fixing button 12, the device moves. The fixing button 12 can also apply pressure to the inner tube sleeve fixing button 32, causing the inner tube sleeve fixing button 32 to move inward and into the inner tube sleeve 31. The inner tube sleeve fixing button 32 loses its connection with the outer tube sleeve 1, making it convenient to remove or install the inner tube sleeve 31. One end of the outer tube sleeve 1 is provided with a scale line 13. Specifically, please refer to Figure 3 The straight outer tube sleeve 1 is provided with a prismatic inner wall 14. The prismatic inner wall 14 can be connected with the prismatic structure 410 to form a clamp, which can fix the working length of the inner tube. The straight outer tube sleeve 1 is provided with an inner tube fixing button 15 and a puncture needle fixing buckle 16. Specifically, the curved outer tube sleeve 101 consists of a straight outer tube sleeve 1, a fixing button 12, a scale line 13, a prismatic inner wall 14, an inner tube fixing button 15, and a puncture needle fixing buckle 16, and the area with the scale line 13 is curved at 15 degrees.

[0021] like Figures 1 to 5As shown, the present invention provides a visual dilatation catheter with a three-lumen structure, including the catheter and a straight puncture needle 21. A locking key 23 is fixedly connected to the straight puncture needle 21, and a puncture needle head 24 is provided on the straight puncture needle 21. The locking key 23 is connected to the puncture needle fixing buckle 16. The curved puncture needle 22 consists of a straight puncture needle 21, a locking button 23, and a puncture needle head 24, with the puncture needle head 24 being inclined at 15 degrees.

[0022] like Figures 1 to 5 As shown, the present invention provides a visual dilation catheter with a three-lumen structure, including the catheter and a straight inner tube sleeve 31. An inner tube sleeve fixing button 32 is slidably connected inside the straight inner tube sleeve 31. A spring is connected between the inner tube sleeve fixing button 32 and the straight inner tube sleeve 31. The spring applies a pushing force to the inner tube sleeve fixing button 32, so that the inner tube sleeve fixing button 32 can be embedded in the straight outer tube sleeve 1. A fixing buckle 33 is provided on the side wall of the straight inner tube sleeve 31. The fixing buckle 33 can cooperate with the puncture needle fixing buckle 16 to achieve a fixing effect. Specifically, the inner tube sleeve 31 is provided with inner tube sleeve scale lines; Specifically, the curved inner tube sleeve 34 consists of a straight inner tube sleeve 31, an inner tube sleeve fixing button 32, and a fixing buckle 33. The straight inner tube sleeve 31 has an inner tube sleeve scale line area that is tilted at 30 degrees.

[0023] like Figures 1 to 5 As shown, the present invention provides a visual expansion catheter with a three-cavity structure, including the catheter and an inner tube sleeve 41. The inner tube sleeve 41 is provided with a fixing member 42, a liquid-gas inlet switch 43, and a water-gas outlet switch 44. The inner sleeve 41 has a water outlet pipe 45, a first suction pipe 46, a water inlet pipe 47, and a second suction pipe 48 on its side wall. Among them, the area where the inner tube 41 connects to the flexible inner tube 49 is provided with a prismatic structure 410; Among them, the fixing part 42 is threadedly connected to one end of the robotic arm 5. The fixing part 42 is a screw. The robotic arm 5 is fixedly connected to the side of the hospital bed or the ground, and a control foot pedal is provided on the base of the robotic arm 5. The robotic arm 5 is equipped with a signal processor, which transmits information from the optical fiber to the computer via wireless transmission, Bluetooth and other means, and can perform image capture, video recording, marking, AI processing and other tasks.

[0024] like Figures 6 to 7 As shown, the present invention provides a visual expansion catheter with a three-chamber structure, including a flexible inner tube 49 which is divided into three channels by a dividing plate 491. The three channels are respectively provided with an optical fiber 492, a water outlet component 493, and a water inlet air component 494. A miniature camera is connected to the optical fiber 492 for easy image capture. The partition plate 491 is provided with an instrument channel 496, which facilitates the entry of external medical devices; Among them, the inner wall of the channel, which is equipped with water outlet component 493 and water inlet air component 494, is provided with multiple sets of magnetic suction plates 495 from top to bottom; The magnetic plate 495 is used to magnetically connect with the magnet 4943, so that the first flow guiding membrane 4941 is fully opened during use. When the liquid inside the first flow guiding membrane 4941 is being processed, the magnetic plate 495 is separated from the magnet 4943, which facilitates the contraction of the first flow guiding membrane 4941. The water outlet pipe 45 is provided with a guide cavity 451. A guide wheel 452 is rotatably connected to the guide cavity 451 through a torsion spring. The side wall of the guide wheel 452 is connected to one end of the drive rope 454. The other end of the drive rope 454 slides through the guide cavity 451 and enters the channel to be connected to one end of the rack 49321. Please refer to Figure 10 A limiting plate 453 is fixedly connected inside the flow guiding cavity 451; Please refer to Figure 7 The water inlet air assembly 494 includes a first guide membrane 4941, with a connecting pipe 4942 connected to the upper end of the first guide membrane 4941. The connecting pipe 4942 communicates with the inner channel 4944 of the first guide membrane 4941. Multiple sets of suction one-way valves 4945 are provided on the inner sidewall of the first guide membrane 4941. The suction one-way valves 4945 communicate with the channel 4944. Magnets 4943 are provided on the four sidewalls of the outer end of the first guide membrane 4941. Among them, the connecting pipe 4942 is connected to the second suction pipe 48, and the upper end of the first guide membrane 4941 is connected to the water inlet pipe 47.

[0025] like Figures 6 to 12 As shown, the present invention provides a visual expansion conduit with a three-chamber structure. The water outlet assembly 493 includes a second guide membrane 4931. The upper end of the second guide membrane 4931 is connected to the water outlet air pipe 45. The second guide membrane 4931 is provided with a jacket. The space inside the jacket is connected to the first suction pipe 46 through an extension pipe. The inner sidewall of the second guide membrane 4931 is provided with a one-way valve flap that communicates with the jacket. The bottom of the second flow guiding membrane 4931 is connected to the outer frame 4932. The outer frame 4932 is rotatably connected to the gear 49322 by a torsion spring. The gear 49322 meshes with the rack 49321. The gear 49322 drives the baffle plate 49323 to rotate and connect with the outer frame 4932. Specifically, during use, air is delivered to the interior of the second guide membrane 4931 through the water inlet pipe 47, and then delivered outward through the second guide membrane 4931 to the end of the flexible inner sleeve 49 and to the treatment area. Then, by connecting the water outlet pipe 45 to an external negative pressure device, the water outlet pipe 45 generates negative pressure, and the guide wheel 452 inside the water outlet pipe 45 is driven to rotate. The guide wheel 452 drives the rack 49321 to move and mesh with the gear 49322 to rotate through the drive rope 454. The gear 49322 drives the limiting plate 453 to rotate, so that the baffle plate 49323 is perpendicular to the outer frame 4932. The channel in the middle of the outer frame 4932 is opened, and the outer frame 4932 draws the liquid in the treatment area into the interior of the outer frame 4932, and then delivers it to the water outlet pipe 45 through the second guide membrane 4931 and outward. When the water outlet pipe 45 loses negative pressure adsorption, the guide wheel 452 automatically resets via the torsion spring, the drive rope 454 on the guide wheel 452 loses tension on the rack 49321, and the gear 49322 automatically drives the baffle plate 49323 to reset and rotate via the torsion spring. The baffle plate 49323 can also close the outer frame 4932 to prevent the liquid remaining in the second guide membrane 4931 above the outer frame 4932 from flowing downward and leaking out. Furthermore, by drawing air from the first suction pipe 46, the air in the interlayer can be driven, and then the interlayer draws air from the second guide membrane 4931 through the one-way valve. The second guide membrane 4931 is subjected to negative pressure adsorption and shrinks as a whole, and the inner walls of the second guide membrane 4931 come into contact with each other. The liquid inside the second guide membrane 4931 is drawn out through the one-way valve and transported to the first suction pipe 46 and then transported outward, so that the liquid retained on the inner wall of the second guide membrane 4931 can be recycled. After the first guide membrane 4941 is used, it is connected to an external suction device through the second suction tube 48. The suction device draws air from the second suction tube 48 and drives the air in the channel 4944. The channel 4944 draws air from the first guide membrane 4941 through the suction one-way valve 4945, causing the first guide membrane 4941 to shrink as a whole. The magnet 4943 on the side wall of the first guide membrane 4941 separates from the magnetic suction plate 495.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A visual dilation catheter with a three-lumen structure, comprising a straight outer tube sleeve (1), a fixing button (12) on the side wall of the straight outer tube sleeve (1), and a scale line (13) on one end of the straight outer tube sleeve (1). The straight outer tube sleeve (1) has a prismatic inner wall (14), and the straight outer tube sleeve (1) has an inner tube fixing button (15) and a puncture needle fixing buckle (16). Its features are: The curved outer tube sleeve (101) consists of a straight outer tube sleeve (1), a fixing button (12), a scale line (13), a prismatic inner wall (14), an inner tube fixing button (15), and a puncture needle fixing buckle (16), and the area with the scale line (13) is curved at 15 degrees. The catheter also includes a straight puncture needle (21), a locking key (23) is fixedly connected to the straight puncture needle (21), and a puncture needle tip (24) is provided on the straight puncture needle (21). The curved puncture needle (22) consists of a straight puncture needle (21), a locking key (23), and a puncture needle head (24), with the puncture needle head (24) set at a 15-degree angle.

2. The visual dilation catheter with a three-lumen structure according to claim 1, characterized in that: The catheter also includes a straight inner tube sleeve (31), which is provided with an inner tube sleeve fixing button (32) and a fixing buckle (33) on the side wall of the straight inner tube sleeve (31). The inner tube sleeve (31) is provided with inner tube sleeve scale lines; The curved inner sleeve (34) consists of a straight inner sleeve (31), an inner sleeve fixing button (32), and a fixing buckle (33). The straight inner sleeve (31) has an inner sleeve scale line area that is tilted at 30 degrees.

3. The visual dilation catheter with a three-lumen structure according to claim 1, characterized in that: The conduit also includes an inner tube sleeve (41), on which a fixing element (42), a liquid-gas inlet switch (43), and a water-gas outlet switch (44) are provided. The inner sleeve (41) has a water outlet pipe (45), a first suction pipe (46), a water inlet pipe (47), and a second suction pipe (48) on its side wall. The area where the inner tube sleeve (41) and the flexible inner tube sleeve (49) are connected is provided with a prismatic structure (410). The fixing part (42) is threaded to one end of the robotic arm (5), and the fixing part (42) is a screw.

4. The visual dilation catheter with a three-lumen structure according to claim 3, characterized in that: The flexible inner sleeve (49) is divided into three channels by a dividing plate (491). The three channels are respectively equipped with an optical fiber (492), a water outlet assembly (493), and a water inlet air assembly (494). A medical instrument channel (496) is provided on the dividing plate (491).

5. The visual dilation catheter with a three-lumen structure according to claim 4, characterized in that: The inner wall of the channel, which is equipped with a water outlet component (493) and a water inlet air component (494), is provided with multiple sets of magnetic suction plates (495) from top to bottom. The effluent assembly (493) can prevent the leakage of the recovered liquid retained in the second flow guide membrane (4931); The water outlet assembly (493) and the water inlet air assembly (494) are used to extract and recover the liquid retained in the water outlet channel and the water pumping channel.

6. The visual dilation catheter with a three-lumen structure according to claim 3, characterized in that: The water outlet pipe (45) is provided with a guide cavity (451). A guide wheel (452) is rotatably connected to the guide cavity (451) by a torsion spring. The side wall of the guide wheel (452) is connected to one end of the drive rope (454). The other end of the drive rope (454) slides through the guide cavity (451) and enters the channel to be connected to one end of the rack (49321).

7. A visual dilation catheter with a three-lumen structure according to claim 6, characterized in that: A limiting plate (453) is fixedly connected inside the flow guiding cavity (451); The water inlet air assembly (494) includes a first guide membrane (4941), with a connecting pipe (4942) connected to the upper end of the first guide membrane (4941). The connecting pipe (4942) communicates with the inner channel (4944) of the first guide membrane (4941). Multiple sets of suction one-way valves (4945) are provided on the inner sidewall of the first guide membrane (4941). The suction one-way valves (4945) communicate with the channel (4944). Magnets (4943) are provided on the four sidewalls of the outer end of the first guide membrane (4941).

8. The visual dilation catheter with a three-lumen structure according to claim 7, characterized in that: The connecting tube (4942) is connected to the second suction tube (48), and the upper end of the first guide membrane (4941) is connected to the water inlet pipe (47).

9. A visual dilation catheter with a three-lumen structure according to claim 5, characterized in that: The water outlet assembly (493) includes a second guide membrane (4931), the upper end of which is connected to the water outlet air pipe (45). The second guide membrane (4931) has an interlayer inside, and the space inside the interlayer is connected to the first suction pipe (46) through an extension pipe. The inner sidewall of the second guide membrane (4931) is provided with a one-way valve flap that is connected to the interlayer.

10. A visual dilation catheter with a three-lumen structure according to claim 9, characterized in that: The bottom of the second flow guide membrane (4931) is connected to the outer frame (4932). The outer frame (4932) is rotatably connected to the gear (49322) by a torsion spring. The gear (49322) meshes with the rack (49321). The gear (49322) drives the baffle plate (49323) to rotate and connect with the outer frame (4932).

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