A percutaneous visual puncture needle for liver abscesses or cysts

Abstract

This utility model discloses a percutaneous visual puncture needle for liver abscesses or cysts, comprising: a puncture needle handle, and connecting tubes fixedly connected to the outer wall of the puncture needle handle on both the left and right sides. The percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model involves inserting both a small puncture needle and a large puncture needle into the patient's body. When the fluid to be drained is turbid fluid, a rotating component and a limiting component prevent the coarse and fine channels from connecting through a U-shaped connecting groove. A syringe is sealed and connected to the connecting tube connected to the coarse channel via a Luer connector. The turbid fluid is then drawn from the patient's body using the syringe, allowing it to enter the coarse channel through the large puncture needle, then flow into the connecting tube, and finally be drawn into the syringe. The large puncture needle, which is free of internal obstructions and relatively large, reduces the possibility of blockage during drainage, thus improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a percutaneous visual puncture needle for liver abscesses or cysts. Background Technology

[0002] Percutaneous treatment of liver abscesses or cysts involves percutaneous puncture, which uses a thin needle to directly penetrate the skin and access the affected area of ​​the liver to drain fluid or provide treatment. Liver abscesses are accumulations of purulent fluid caused by infection, typically presenting as cloudy lesions containing pus and bacteria, requiring drainage of the pus and antibiotic treatment. In contrast, liver cysts are fluid-filled cystic lesions within the liver, with the fluid usually clear. Treatment may involve aspiration or sclerotherapy to alleviate symptoms or prevent recurrence. Percutaneous drainage not only helps drain abscess fluid and reduce infection but also provides an effective method for managing cysts, thus achieving the goal of treatment.

[0003] For example, Chinese utility model patent (CN218391223U) discloses an abdominal visual puncture needle with a camera, which states: "This utility model is an abdominal visual puncture needle with a simple structure, quick and convenient connection and fixation between the camera and the puncture needle, and good visualization effect." It also states: "Most existing abdominal punctures are blind punctures, relying on the doctor's accumulated experience. However, novices are prone to operational errors, which affect the progress of the operation and have a great impact on the operation. Its success rate is closely related to the operator's proficiency and the tissue structure of the puncture site, resulting in disadvantages such as low puncture success rate and many complications."

[0004] In summary, existing technologies utilize a miniature camera located near the bottom of the puncture needle body to assist in the puncture operation of the puncture needle assembly. During the puncture process, the image detected by the miniature camera is displayed on a monitor in real time. However, this method has the following technical problems: In actual cases of liver abscess or cyst, drainage of fluid is generally required for treatment. However, setting up structures such as fiber optic rods, support plates, and miniature cameras within the puncture needle body will occupy the internal space of the puncture needle body, which may lead to blockage when draining turbid pus. The practicality of the device is relatively low. Therefore, this application proposes a percutaneous visual puncture needle for liver abscess or cyst, providing a new technical solution to solve the technical problems mentioned in the above-mentioned patent. Utility Model Content

[0005] Based on this, it is necessary to address the aforementioned technical problems by providing a percutaneous visual puncture needle for liver abscesses or cysts. By inserting both a small and a large puncture needle into the patient, when drainage is required, and the fluid to be drained is a turbid fluid that may contain necrotic tissue, leukocytes, and bacteria, a rotating component and a limiting component prevent the coarse and fine channels from connecting through a U-shaped connecting groove. A syringe is then sealed to a connecting tube connected to the coarse channel via a Luer connector. The syringe then draws out the turbid fluid from the patient, allowing it to pass through the large puncture needle into the coarse channel, then flow into the connecting tube, and finally be drawn into the syringe. The relatively large puncture needle, free of internal obstructions, reduces the risk of blockages during drainage, thus improving the device's practicality.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A percutaneous visual puncture needle for liver abscesses or cysts, used in the treatment of liver abscesses or cysts.

[0008] The percutaneous visual puncture needles for liver abscesses or cysts specifically include:

[0009] The puncture needle handle has connecting tubes fixedly connected to its outer wall on both the left and right sides. Luer connectors are fixedly installed at the ends of the two connecting tubes away from the puncture needle handle. The puncture needle handle is provided with a puncture communication mechanism and a visual mechanism. Sealing caps are movably fitted on the outside of the two Luer connectors.

[0010] The connecting puncture mechanism includes a small puncture needle, a large puncture needle, a connecting component, a rotating component, and a limiting component. The small puncture needle and the large puncture needle are fixedly connected to the bottom of the puncture needle handle, and the small puncture needle is fixedly connected to the outer wall of the large puncture needle.

[0011] In a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the connecting component includes a coarse groove, a U-shaped connecting groove is formed in the puncture needle handle, the coarse groove is connected to the U-shaped connecting groove, a fine groove is formed in the puncture needle handle, the fine groove is connected to the U-shaped connecting groove, the coarse groove is connected to the interior of the large puncture needle, and the fine groove is connected to the interior of the small puncture needle.

[0012] As a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the rotating assembly includes a rotating shaft, the inner wall of the puncture needle handle is rotatably connected to the rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a baffle adapted to the U-shaped communicating groove.

[0013] In a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the limiting component includes a fixing box. The fixing box is fixedly connected to the outer wall of the puncture needle handle. The rotating shaft is rotatably connected to the inner wall of the fixing box. A fixing ring is fixedly connected to the outer wall of the rotating shaft and located inside the fixing box. Two springs are fixedly connected to the inner wall of the fixing ring. Sliding rods are fixedly connected to the ends of the two springs that are far apart from each other. Both sliding rods are slidably connected to the inner wall of the fixing ring. The inner wall of the fixing box has slots that are adapted to the sliding rods in the upper, lower, left, and right directions.

[0014] As a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the visual mechanism includes an optical fiber rod, an elastic seal, a viewing component, a transmission component, and an adjustment component. The inner wall of the puncture needle handle is fixedly connected to the elastic seal, and the inner wall of the elastic seal is slidably connected to the optical fiber rod.

[0015] In a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the viewing component includes a camera body. The camera body is fixedly installed at one end of the optical fiber rod located inside the small puncture needle. Multiple positioning plates are fixedly connected to the outer wall of the optical fiber rod. The multiple positioning plates are slidably connected to the inner wall of the small puncture needle. A camera handle is slidably connected to the inner wall of the puncture needle handle. The end of the optical fiber rod away from the camera body is fixedly connected to the inner wall of the camera handle.

[0016] In a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the transmission assembly includes a worm gear, the inner wall of the puncture needle handle is rotatably connected to the worm gear, the inner wall of the puncture needle handle is rotatably connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a worm wheel, and the worm gear meshes with the outer wall of the worm wheel.

[0017] As a preferred embodiment of the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model, the adjustment component includes a gear, the outer wall of the rotating rod is fixedly connected to the gear, the inner wall of the camera handle is fixedly connected to the rack, and the gear meshes with the outer wall of the rack.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention provides a percutaneous visual puncture needle for liver abscesses or cysts. By inserting both a small and a large puncture needle into the patient's body, when drainage is required, and when the fluid to be drained is a turbid fluid that may contain necrotic tissue, white blood cells, and bacteria, the rotating and limiting components prevent the coarse and fine channels from connecting through the U-shaped connecting groove. The syringe is sealed and connected to the connecting tube connected to the coarse channel via a Luer connector. Then, the syringe draws out the turbid fluid from the patient's body, allowing it to enter the coarse channel through the large puncture needle, then flow into the connecting tube, and finally be drawn into the syringe. By eliminating internal obstructions and drawing out the turbid fluid first with the larger puncture needle, the possibility of blockage during the drainage process is reduced, improving the practicality of the device.

[0020] This invention provides a percutaneous visual puncture needle for liver abscesses or cysts. By rotating and limiting components, the coarse and fine channels can be connected via a U-shaped connecting groove. A sealing cap can then be used to block the Luer connector near the coarse channel. The sealing cap on the Luer connector near the fine channel is then removed, and a sealing connection is established between the Luer connector and the syringe. This allows the syringe, Luer connector, connecting tube, fine channel, U-shaped connecting groove, coarse channel, the interior of the small puncture needle, and the interior of the large puncture needle to form a single inlet and outlet space. Pulling the syringe guides the patient's clear fluid towards the small and large puncture needles. The fluid is guided from the puncture needle to the syringe. By expanding the guiding area of ​​the fluid, the efficiency of fluid drainage is improved. When it is necessary to reduce negative pressure damage to fragile tissues or small cavities, the coarse and fine channels cannot be connected by the rotating and limiting components through the U-shaped connecting channel. Then, the syringe is slowly pulled to allow the fluid to pass from the patient's body through the small puncture needle, fine channel, connecting tube, and Luer connector to the syringe. By reducing the flow rate, the aspiration pressure can be controlled relatively precisely. The two methods of fluid drainage are suitable for different drainage scenarios, and the device is relatively flexible in use, improving its practicality.

[0021] The percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model addresses the issue that when the small and large puncture needles are inserted into the patient's body, some tissues or blood may obstruct the lens of the camera body, making it difficult for medical personnel to see clearly. In such cases, it can be determined whether saline solution can be used to flush the camera body. If so, the coarse and fine channels cannot be connected through the U-shaped connecting channel by rotating and limiting components. Then, a syringe containing saline solution is installed on the Luer connector near the fine channel, and a tubing is connected to the Luer connector near the coarse channel. The end of the tubing away from the Luer connector is placed in a container for collecting the cleaned saline solution. Medical personnel then push the syringe to allow the saline solution to enter the fine channel, thereby flushing the area around the camera body. After entering the patient's body, the saline solution flows through the large puncture needle into the coarse channel, and then flows out through the connecting tube and Luer connector. This process is relatively simple to operate, provides a good flow path for saline solution to flush the camera body, and the device is highly practical.

[0022] The percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model, when it is necessary to inject medication into the patient's body, a syringe containing the corresponding medication is sealed and connected to the Luer connector near the fine groove, and the Luer connector near the coarse groove is blocked with a sealing cap. The coarse groove and the fine groove are not connected by the U-shaped connecting groove by the rotating component and the limiting component. Then, the medication is injected into the patient's body by the syringe through the connecting tube, the fine groove and the small puncture needle in sequence. Since the fine groove is equipped with an optical fiber rod, a positioning plate and a camera body, and the internal space of the fine groove itself is relatively small, the situation of medication not being completely injected into the patient's body due to residue in the fine groove is reduced. Furthermore, the camera body allows medical staff to control the injection position of the medication relatively accurately, improving the practicality of the device.

[0023] The percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model can rotate the worm gear, which in turn rotates the worm wheel and rotating rod, thereby rotating the gear. The camera handle can then slide within the puncture needle handle via the rack. The movement of the camera handle can move the camera body via the fiber optic rod, thereby adjusting the position of the camera body. The simple operation allows medical staff to focus the camera body, and the cooperation of the worm gear and worm wheel improves the stability of the camera body's position. Attached Figure Description

[0024] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the overall structure of the percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model;

[0026] Figure 2 A schematic diagram of the internal structure of the puncture needle handle of the percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model;

[0027] Figure 3 A schematic diagram of the internal structure of another puncture needle handle for the percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model;

[0028] Figure 4 This invention provides a percutaneous visual puncture needle for liver abscesses or cysts. Figure 3 Enlarged view of A in the middle;

[0029] Figure 5 A schematic diagram of the separation structure of the fixation box and fixation ring for the percutaneous visual puncture needle for liver abscess or cyst provided by this utility model;

[0030] Figure 6 A schematic diagram showing the segmented and unfolded structure of the small and large puncture needles for percutaneous visual liver abscess or cyst puncture needles provided by this utility model.

[0031] Figure 7 A schematic diagram of the internal structure of the handle of another percutaneous visual puncture needle for liver abscess or cyst provided by this utility model;

[0032] Figure 8 This invention provides a percutaneous visual puncture needle for liver abscesses or cysts. Figure 7 A magnified view of B in the middle.

[0033] The markings in the diagram are explained as follows:

[0034] 1. Puncture needle handle; 2. Connecting tube; 3. Luer connector; 4. Connecting puncture mechanism; 5. Visual mechanism; 6. Small puncture needle; 7. Large puncture needle; 8. Coarse groove; 9. Fine groove; 10. U-shaped connecting groove; 11. Rotating shaft; 12. Baffle plate; 13. Fixing box; 14. Fixing ring; 15. Spring; 16. Sliding rod; 17. Slot; 18. Fiber optic rod; 19. Elastic seal; 20. Camera body; 21. Positioning plate; 22. Camera handle; 23. Rack; 24. Rotating rod; 25. Gear; 26. Worm gear; 27. Worm. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0036] As described in the background art, in actual cases of liver abscess or cyst, drainage of fluid is generally required for treatment. However, the inclusion of structures such as fiber optic rods, support plates, and miniature cameras within the puncture needle body can occupy the internal space of the puncture needle body, potentially causing blockage during drainage of turbid pus. Consequently, the practicality of the device is relatively low.

[0037] To address this technical problem, this invention provides a percutaneous visual puncture needle for liver abscesses or cysts, which is applied to the treatment of liver abscesses or cysts.

[0038] For details, please refer to Figures 1-2 The percutaneous visual puncture needle for liver abscess or cyst specifically includes:

[0039] The puncture needle handle 1 has connecting tubes 2 fixedly connected to the outer wall of the puncture needle handle 1 on the left and right sides respectively. Luer connectors 3 are fixedly installed at the ends of the two connecting tubes 2 away from the puncture needle handle 1. A puncture communication mechanism 4 is provided on the puncture needle handle 1. A visual mechanism 5 is provided on the puncture needle handle 1. Sealing caps are movably fitted on the outside of the two Luer connectors 3.

[0040] The connecting puncture mechanism 4 includes a small puncture needle 6, a large puncture needle 7, a connecting component, a rotating component, and a limiting component. The small puncture needle 6 and the large puncture needle 7 are fixedly connected to the bottom of the puncture needle handle 1, and the small puncture needle 6 is fixedly connected to the outer wall of the large puncture needle 7.

[0041] In this application, the camera body 20 and the camera handle 22 have the same specific structure and working principle as the miniature camera and camera handle in the prior art mentioned in the background.

[0042] The percutaneous visual puncture needle for liver abscesses or cysts provided by this utility model involves inserting both a small puncture needle 6 and a large puncture needle 7 into the patient's body. When drainage is required, and the fluid to be drained is a turbid fluid that may contain necrotic tissue, white blood cells, and bacteria, the rotating component and the limiting component prevent the coarse groove 8 and the fine groove 9 from connecting through the U-shaped connecting groove 10. The syringe is sealed and connected to the connecting tube 2, which is connected to the coarse groove 8, through the Luer connector 3. Then, the turbid fluid in the patient's body is drawn out by the syringe, allowing the turbid fluid to enter the coarse groove 8 through the large puncture needle 7, then flow into the connecting tube 2 through the coarse groove 8, and finally be drawn into the syringe. By ensuring that there are no internal obstructions and by first drawing out the turbid fluid with the larger puncture needle 7, the possibility of blockage during the drainage process is reduced, thus improving the practicality of the device.

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] Example 1:

[0045] Please refer to Figures 1-7 A percutaneous visual puncture needle for liver abscesses or cysts, comprising:

[0046] The puncture needle handle 1 has connecting tubes 2 fixedly connected to the outer wall of the puncture needle handle 1 on the left and right sides respectively. Luer connectors 3 are fixedly installed at the ends of the two connecting tubes 2 away from the puncture needle handle 1. A puncture communication mechanism 4 is provided on the puncture needle handle 1. A visual mechanism 5 is provided on the puncture needle handle 1. Sealing caps are movably fitted on the outside of the two Luer connectors 3.

[0047] The connecting puncture mechanism 4 includes a small puncture needle 6, a large puncture needle 7, a connecting component, a rotating component, and a limiting component. The small puncture needle 6 and the large puncture needle 7 are fixedly connected to the bottom of the puncture needle handle 1. The small puncture needle 6 is fixedly connected to the outer wall of the large puncture needle 7. The mechanism can be used for the treatment of liver abscess or cyst by draining turbid and clear fluids, as well as for cleaning the camera body 20 or injecting medication.

[0048] The connecting component includes a coarse groove 8, a U-shaped connecting groove 10, and a fine groove 9. The fine groove 9 is connected to the U-shaped connecting groove 10. The coarse groove 8 is connected to the interior of the large puncture needle 7, and the fine groove 9 is connected to the interior of the small puncture needle 6. The connecting component can connect the small puncture needle 6 and the large puncture needle 7 to the interior of the puncture needle handle 1, and connect the coarse groove 8 and the fine groove 9 through the U-shaped connecting groove 10.

[0049] The rotating assembly includes a rotating shaft 11. The inner wall of the puncture needle handle 1 is rotatably connected to the rotating shaft 11. The outer wall of the rotating shaft 11 is fixedly connected to a baffle 12 that is adapted to the U-shaped connecting groove 10. The rotating assembly can divide the interior of the U-shaped connecting groove 10, thereby preventing the coarse groove 8 and the fine groove 9 from communicating through the U-shaped connecting groove 10. The baffle 12 can release the separation of the U-shaped connecting groove 10, allowing the coarse groove 8 and the fine groove 9 to communicate through the U-shaped connecting groove 10. When the baffle 12 is vertical in the U-shaped connecting groove 10, it can divide the U-shaped connecting groove 10 into two parts, blocking the communication between the coarse groove 8 and the fine groove 9. When the baffle 12 is in a horizontal state, the coarse groove 8 and the fine groove 9 can communicate through the U-shaped connecting groove 10.

[0050] The limiting component includes a fixed box 13. The fixed box 13 is fixedly connected to the outer wall of the puncture needle handle 1. The rotating shaft 11 is rotatably connected to the inner wall of the fixed box 13. A fixed ring 14 is fixedly connected to the outer wall of the rotating shaft 11 and inside the fixed box 13. Two springs 15 are fixedly connected to the inner wall of the fixed ring 14. Sliding rods 16 are fixedly connected to the ends of the two springs 15 that are far apart from each other. Both sliding rods 16 are slidably connected to the inner wall of the fixed ring 14. The inner wall of the fixed box 13 has slots 17 that are adapted to the sliding rods 16 on the top, bottom, left, and right sides. The limiting component can limit the position of the baffle 12 and ensure the stability of the baffle 12 in its current position. The end of the sliding rod 16 outside the fixed ring 14 is hemispherical. The sliding rod 16 is movably inserted into the slot 17. The sliding rod 16 inserted into the slot 17 can limit the current position of the baffle 12 to a certain extent.

[0051] Through the above structural design, after the small puncture needle 6 and the large puncture needle 7 are inserted into the appropriate position in the patient's body with the cooperation of the visual mechanism 5, when it is necessary to extract the turbid fluid in the patient's body, the coarse groove 8 and the fine groove 9 cannot be connected through the U-shaped connecting groove 10 by relying on the rotating component and the limiting component. Specifically, rotating the rotating shaft 11 causes the baffle 12 to block the U-shaped connecting groove 10 and divide it into two sections. During this process, the rotating shaft 11 drives the fixing ring 14 to rotate, causing the sliding rod 16 to be squeezed by the inner wall of the fixing box 13, causing the spring 15 to deform accordingly. When the two sliding rods 16 are respectively aligned with the upper and lower slots 17, the two springs are then in contact with each other. Under the action of the spring 15, the sliding rod 16 is inserted into the corresponding slot 17, thereby restricting the position of the current stop plate 12. Then, the syringe is sealed and connected to the connecting tube 2, which is connected to the coarse groove 8, through the Luer connector 3. Then, the turbid fluid in the patient's body is drawn by the syringe, and the turbid fluid in the patient's body enters the coarse groove 8 through the large puncture needle 7, then flows into the connecting tube 2 through the coarse groove 8, and is finally drawn into the syringe. When medical staff need to draw the clear fluid in the patient's body, when there is a lot of clear fluid to be drawn, the coarse groove 8 and the fine groove 9 can be connected by the rotating component and the limiting component through the U-shaped connecting groove 10. Specifically, the rotating shaft 1 is rotated. 1. This prevents the baffle 12 from separating the U-shaped connecting groove 10. During this process, the rotating shaft 11 drives the fixing ring 14 to rotate, causing the sliding rod 16 to be squeezed by the inner wall of the fixing box 13, which in turn causes the spring 15 to deform. When the two sliding rods 16 are aligned with the left and right slots 17 respectively, the sliding rods 16 are inserted into the corresponding slots 17 under the action of the elastic force of the two springs 15, thereby restricting the position of the baffle 12. Then, the sealing cap can be used to block the Luer connector 3 near the coarse groove 8. Then, the sealing cap on the Luer connector 3 near the fine groove 9 is removed, and the Luer connector 3 is used to seal the connection between the syringe and the syringe. The syringe, Luer connector 3, connecting tube 2, fine groove 9, U-shaped connecting groove 10, coarse groove 8, small puncture needle 6 and large puncture needle 7 are combined into a single inlet and a single outlet space. Pulling the syringe can guide the clear fluid in the patient's body into the small puncture needle 6 and large puncture needle 7, and finally into the syringe. When it is necessary to reduce negative pressure damage to fragile tissues or small cavities, the coarse groove 8 and fine groove 9 cannot be connected through the U-shaped connecting groove 10 by rotating the component and limiting the component. Then, the syringe is slowly pulled to allow the clear fluid to pass from the patient's body through the small puncture needle 6, fine groove 9, connecting tube 2 and Luer connector 3 to the syringe.When the camera body 20 needs to be rinsed, the coarse groove 8 and the fine groove 9 are prevented from connecting through the U-shaped connecting groove 10 by rotating and limiting components. Then, a syringe with saline solution is installed on the Luer connector 3 near the fine groove 9, and a tubing is connected to the Luer connector 3 near the coarse groove 8. The end of the tubing away from the Luer connector 3 is placed in a container for collecting the saline solution after cleaning. Medical personnel then push the syringe to allow the saline solution to enter the fine groove 9, subsequently rinsing the area around the camera body 20. After passing through the large puncture needle 7 into the coarse groove 8, the fluid flows out through the connecting tube 2 and Luer connector 3. When medication needs to be injected into the patient, a syringe containing the corresponding medication is sealed to the Luer connector 3 near the fine groove 9. The Luer connector 3 near the coarse groove 8 is blocked with a sealing cap, and the rotating and limiting components prevent the coarse groove 8 and the fine groove 9 from connecting through the U-shaped connecting groove 10. Then, the syringe injects the medication into the patient's body sequentially through the connecting tube 2, the fine groove 9, and the small puncture needle 6.

[0052] Example 2:

[0053] The percutaneous visual puncture needle for liver abscesses or cysts provided in Example 1 has been further optimized, specifically, as follows: Figures 7-8 As shown, the visual mechanism 5 includes an optical fiber rod 18, an elastic seal 19, a viewing component, a transmission component, and an adjustment component. The inner wall of the puncture needle handle 1 is fixedly connected to the elastic seal 19, and the inner wall of the elastic seal 19 is slidably connected to the optical fiber rod 18. The elastic seal 19 can prevent liquid or gas inside the groove 9 from entering the space where the camera handle 22 slides inside the puncture needle handle 1.

[0054] The viewing component includes a camera body 20, a fiber optic rod 18 located inside a small puncture needle 6 with one end of the camera body 20 fixedly installed, a plurality of positioning plates 21 fixedly connected to the outer wall of the fiber optic rod 18, the plurality of positioning plates 21 being slidably connected to the inner wall of the small puncture needle 6, a camera handle 22 slidably connected to the inner wall of the puncture needle handle 1, the end of the fiber optic rod 18 away from the camera body 20 being fixedly connected to the inner wall of the camera handle 22, the number of positioning plates 21 being at least two, and a display screen for displaying the image captured by the camera body 20 being provided on the camera handle 22.

[0055] The transmission assembly includes a worm gear 27, which is rotatably connected to the inner wall of the puncture needle handle 1. A rotating rod 24 is rotatably connected to the inner wall of the puncture needle handle 1, and a worm wheel 26 is fixedly connected to the outer wall of the rotating rod 24. The worm gear 27 meshes with the outer wall of the worm wheel 26. The lead angle of the worm gear 27 is very small, and the transmission between the worm gear 27 and the worm wheel 26 has a self-locking function to ensure the stability of the position of the camera handle 22.

[0056] The adjustment assembly includes a gear 25. The gear 25 is fixedly connected to the outer wall of the rotating rod 24, and a rack 23 is fixedly connected to the inner wall of the camera handle 22. The gear 25 meshes with the outer wall of the rack 23. The change in the position of the camera handle 22 can change the position of the camera body 20 accordingly, thereby adjusting the focal length of the camera body 20.

[0057] With the above structural design, when it is necessary to adjust the position of the camera body 20, the worm gear 27 can be rotated to make the worm wheel 26 and the rotating rod 24 rotate accordingly, which in turn makes the gear 25 rotate accordingly. Then, the camera handle 22 can slide in the puncture needle handle 1 through the rack 23. The movement of the camera handle 22 can drive the camera body 20 to move through the fiber optic rod 18, thereby adjusting the position of the camera body 20.

Claims

1. A percutaneous visual liver abscess or cyst puncture needle comprising a puncture needle handle (1), characterized in that: The outer wall of the puncture needle handle (1) is fixedly connected to the connecting tubes (2) on the left and right sides respectively. The ends of the two connecting tubes (2) away from the puncture needle handle (1) are respectively fixedly installed with Luer connectors (3). The puncture needle handle (1) is provided with a puncture communication mechanism (4). The puncture needle handle (1) is provided with a visual mechanism (5). The two Luer connectors (3) are movably fitted with sealing caps on their exteriors. The connecting puncture mechanism (4) includes a small puncture needle (6), a large puncture needle (7), a connecting component, a rotating component, and a limiting component. The bottom of the puncture needle handle (1) is fixedly connected to the small puncture needle (6) and the large puncture needle (7), and the small puncture needle (6) is fixedly connected to the outer wall of the large puncture needle (7).

2. The percutaneous visual liver abscess or cyst puncture needle according to claim 1, characterized by, The connecting component includes a coarse groove (8), the puncture needle handle (1) has a coarse groove (8) inside, the puncture needle handle (1) has a U-shaped connecting groove (10) inside, the coarse groove (8) is connected to the U-shaped connecting groove (10), the puncture needle handle (1) has a fine groove (9) inside, the fine groove (9) is connected to the U-shaped connecting groove (10), the coarse groove (8) is connected to the interior of the large puncture needle (7), and the fine groove (9) is connected to the interior of the small puncture needle (6).

3. The percutaneous visual liver abscess or cyst puncture needle according to claim 2, characterized by, The rotating assembly includes a rotating shaft (11), the inner wall of the puncture needle handle (1) is rotatably connected to the rotating shaft (11), and the outer wall of the rotating shaft (11) is fixedly connected to a baffle (12) adapted to the U-shaped connecting groove (10).

4. The percutaneous visual liver abscess or cyst puncture needle according to claim 3, characterized by, The limiting component includes a fixing box (13), the outer wall of the puncture needle handle (1) is fixedly connected to the fixing box (13), the rotating shaft (11) is rotatably connected to the inner wall of the fixing box (13), the outer wall of the rotating shaft (11) and the inside of the fixing box (13) is fixedly connected to a fixing ring (14), the inner wall of the fixing ring (14) is fixedly connected to two springs (15), the ends of the two springs (15) that are far apart from each other are respectively fixedly connected to sliding rods (16), the two sliding rods (16) are slidably connected to the inner wall of the fixing ring (14), and the inner wall of the fixing box (13) is provided with slots (17) that are adapted to the sliding rods (16) in the upper, lower and left and right directions respectively.

5. The percutaneous visual liver abscess or cyst puncture needle according to claim 1, wherein, The visual mechanism (5) includes an optical fiber rod (18), an elastic seal (19), a viewing component, a transmission component, and an adjustment component. The inner wall of the puncture needle handle (1) is fixedly connected to the elastic seal (19), and the inner wall of the elastic seal (19) is slidably connected to the optical fiber rod (18).

6. The percutaneous visual liver abscess or cyst puncture needle according to claim 5, wherein The viewing component includes a camera body (20), and the camera body (20) is fixedly installed at one end of the fiber optic rod (18) inside the small puncture needle (6). Multiple positioning plates (21) are fixedly connected to the outer wall of the fiber optic rod (18), and the multiple positioning plates (21) are slidably connected to the inner wall of the small puncture needle (6). A camera handle (22) is slidably connected to the inner wall of the puncture needle handle (1). The end of the fiber optic rod (18) away from the camera body (20) is fixedly connected to the inner wall of the camera handle (22).

7. The percutaneous visual liver abscess or cyst puncture needle according to claim 6, characterized by, The transmission assembly includes a worm gear (27), the inner wall of the puncture needle handle (1) is rotatably connected to the worm gear (27), the inner wall of the puncture needle handle (1) is rotatably connected to a rotating rod (24), the outer wall of the rotating rod (24) is fixedly connected to a worm wheel (26), and the worm gear (27) meshes with the outer wall of the worm wheel (26).

8. The percutaneous visual liver abscess or cyst puncture needle according to claim 7, characterized by, The adjustment assembly includes a gear (25), the outer wall of the rotating rod (24) is fixedly connected to the gear (25), the inner wall of the camera handle (22) is fixedly connected to the rack (23), and the gear (25) meshes with the outer wall of the rack (23).

Images