Bronchoscope biopsy sampling device
By setting up a propulsion disc and a return spring in the bronchoscopic biopsy sampling device, the ejection distance of the biopsy needle is adjustable, which solves the problem of inflexible design of the biopsy needle in the prior art, improves the accuracy and success rate of sampling, and reduces damage to surrounding tissue.
Patent Information
- Application Number
- CN202421671809.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing bronchoscopic biopsy sampling device adopts a fixed biopsy needle design, which limits its flexibility and accuracy in clinical applications, especially when biopsy sampling in complex cases, where doctors need to accurately control the ejection distance of the biopsy needle to ensure accurate sampling and avoid damage to surrounding healthy tissue.
A bronchoscopic biopsy sampling device is designed. By setting a propulsion disc and a return spring between the fixed pipe and the connecting pipe, the biopsy needle can be ejected under the action of external force, and the ejection distance is controlled by adjusting the position of the propulsion rod, so as to achieve flexible control of the biopsy needle.
With the adjustability of the ejection distance of the biopsy needle, doctors can flexibly adjust the sampling depth, improve sampling accuracy and success rate, and reduce damage to surrounding healthy tissue.
Smart Images
Figure CN223026093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly to a bronchoscope biopsy sampling device. Background Art
[0002] A bronchoscope is a medical device that is inserted into the lower respiratory tract of a patient through the mouth or nose for observing, biopsy sampling, bacteriological and cytological examinations of lesions in the lung lobes, segments, and sub-segments. It can be used for photography, teaching, and dynamic recording in cooperation with a TV system. Through the connected biopsy sampling accessory, it can assist in detecting early lesions and performing in-vivo surgical operations such as polyp removal. However, there are still various problems with various bronchoscopes on the market.
[0003] Most of the existing bronchoscope biopsy sampling devices adopt a fixed biopsy needle design, which to a certain extent limits their flexibility and accuracy in clinical applications. Especially when performing biopsy sampling on complex cases, doctors need to precisely control the ejection distance of the biopsy needle to ensure accurate arrival at the target position and effective sampling, while avoiding unnecessary damage to surrounding healthy tissues. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a bronchoscope biopsy sampling device to solve the problem that most of the existing bronchoscope biopsy sampling devices adopt a fixed biopsy needle design, which to a certain extent limits their flexibility and accuracy in clinical applications. Especially when performing biopsy sampling on complex cases, doctors need to precisely control the ejection distance of the biopsy needle to ensure accurate arrival at the target position and effective sampling, while avoiding unnecessary damage to surrounding healthy tissues.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A bronchoscope biopsy sampling device includes a fixed pipeline and a connecting pipe. A propulsion disc is arranged between the fixed pipeline and the connecting pipe. Clamping blocks that fit with the inner wall of the fixed pipeline are fixedly clamped at both the upper and lower ends of the propulsion disc. A base is arranged on the front side of the propulsion disc, and a biopsy needle is fixedly arranged on the base. Inside the fixed pipeline and at the end far from the propulsion disc, there is a first connecting plate;
[0007] A second connecting plate is correspondingly arranged in the connecting pipe with respect to the first connecting plate. Guide rods are correspondingly arranged between the first connecting plate and the second connecting plate. A return spring is arranged between the propulsion disc and the first connecting plate.
[0008] Optionally, a needle tube is arranged on the front side of the fixed pipeline, and the biopsy needle penetrates through the first connecting plate and extends into the interior of the needle tube.
[0009] Optionally, a push rod is provided at the rear side of the second connecting plate, and the front end of the push rod penetrates through to the other side of the second connecting plate and is connected with a limiting block.
[0010] Optionally, a notch is formed at the bottom of the connecting pipe.
[0011] Optionally, a handle is fixedly connected to one side of the bottom of the connecting pipe. A fixing block is provided at the top of the handle. A connecting rod is movably connected to the inner side of the fixing block through a first connecting shaft. A pulling block is fixedly connected to the bottom of one end of the connecting rod. The pulling block is movably arranged in the notch through a second connecting shaft. A pushing block is fixedly connected to the side of the connecting rod away from the pulling block.
[0012] Optionally, the upper part of the pushing block is fixedly sleeved on the outside of the push rod.
[0013] Optionally, in the initial state, the front end of the biopsy needle extends to the front end of the needle tube.
[0014] The beneficial effects of the present utility model are as follows:
[0015] By arranging structures such as a pushing disc and a reset spring between the fixed pipe and the connecting pipe, the biopsy needle of the present utility model can be ejected under the action of an external force, and the ejection distance can be controlled by adjusting the position of the push rod, so that a doctor can flexibly adjust the sampling depth of the biopsy needle according to the actual condition of the disease and the bronchial environment, thereby improving the accuracy and success rate of sampling. Moreover, due to the adjustable ejection distance of the biopsy needle, the doctor can more precisely control the sampling process and reduce the damage to the surrounding healthy tissues. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of a bronchoscope biopsy sampling device of the present utility model;
[0017] Figure 2 is a schematic structural diagram of the present utility model after removing the fixed pipe;
[0018] Figure 3 is a side sectional view of the present utility model.
[0019] The reference numerals in the drawings are:
[0020] 1, fixed pipe; 2, connecting pipe; 201, notch; 3, handle; 4, fixing block; 5, first connecting shaft; 6, connecting rod; 7, pulling block; 8, second connecting shaft; 9, pushing block; 10, clamping block; 11, pushing disc; 12, base; 13, biopsy needle; 14, first connecting plate; 15, needle tube; 16, second connecting plate; 17, guide rod; 18, reset spring; 19, push rod; 20, limiting block. Detailed Embodiments
[0021] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] The following will describe this in conjunction with the preferred embodiments of the device of the present utility model.
[0023] See Figures 1-3 As shown, the embodiment of the present utility model provides a bronchoscope biopsy sampling device, which includes a fixed pipeline 1 and a connecting pipe 2. A propulsion disc 11 is provided between the fixed pipeline 1 and the connecting pipe 2. Clamping blocks 10 that fit the inner wall of the fixed pipeline 1 are fixedly clamped at both the upper and lower ends of the propulsion disc 11. A base 12 is provided on the front side of the propulsion disc 11, and a biopsy needle 13 is fixedly provided on the base 12. Inside the fixed pipeline 1 and at the end far from the propulsion disc 11, there is a first connecting plate 14;
[0024] Corresponding to the first connecting plate 14 inside the connecting pipe 2, there is a second connecting plate 16. Guide rods 17 are correspondingly provided between the first connecting plate 14 and the second connecting plate 16. A return spring 18 is provided between the propulsion disc 11 and the first connecting plate 14.
[0025] Specifically, after determining the sampling position, the applied thrust is transmitted to the propulsion disc 11. Under the action of external force, the propulsion disc 11 slides forward along the guide rods 17, overcoming the elastic force of the return spring 18.
[0026] At the same time, due to the tight fit between the clamping blocks 10 and the inner wall of the fixed pipeline 1, it is ensured that the propulsion disc 11 moves smoothly without rotation. As the propulsion disc 11 advances, the base 12 and the biopsy needle 13 thereon also move forward accordingly, enabling the tip of the biopsy needle 13 to penetrate deeper into the target tissue for sampling; after the sampling is completed, the doctor releases the externally applied force, and the return spring 18 immediately releases the stored elastic force, pushing the propulsion disc 11 and all components thereon to quickly retreat along the guide rods 17 to the initial position; when the biopsy needle 13 retreats, its tip withdraws from the target tissue and returns to the position of the needle tube 15. During the sampling process, due to the adjustable ejection distance of the biopsy needle 13, the doctor can more precisely control the sampling process and reduce damage to the surrounding healthy tissues.
[0027] Furthermore, in the specific technical solution of this embodiment, a needle tube 15 is provided on the front side of the fixed pipeline 1. The biopsy needle 13 penetrates through the first connecting plate 14 and extends into the inside of the needle tube 15. In the initial state, the front end of the biopsy needle 13 extends to the front end of the needle tube 15, ensuring that the biopsy needle 13 can directly contact the target tissue for sampling.
[0028] Further, in the specific technical solution of this embodiment, a push rod 19 is provided at the rear side of the second connecting plate 16. The front end of the push rod 19 penetrates to the other side of the second connecting plate 16 and is connected with a limit block 20. The push rod 19 serves as a mechanism for controlling the advancement and retraction of the biopsy needle 13. By pulling the pull block 7, the push disk 11 and the biopsy needle 13 can be driven to slide along the guide rod 17.
[0029] Further, a notch 201 is formed at the bottom of the connecting pipe 2. A handle 3 is fixedly connected to one side of the bottom of the connecting pipe 2. A fixing block 4 is provided at the top of the handle 3. A connecting rod 6 is movably connected to the inside of the fixing block 4 through a first connecting shaft 5. A pull block 7 is fixedly connected to the bottom of one end of the connecting rod 6. The pull block 7 is movably arranged in the notch 201 through a second connecting shaft 8. A push block 9 is fixedly connected to the side of the connecting rod 6 away from the pull block 7.
[0030] Further, in the specific technical solution of this embodiment, the upper part of the push block 9 is fixedly sleeved on the outside of the push rod 19.
[0031] Specifically, when the doctor operates the handle 3 to pull the pull block 7, the pull block 7 advances the push block 9 under the action of the connecting rod 6. The push block 9 further drives the push rod 19 to perform a pushing movement on the push disk 11, so as to realize the precise control of the biopsy needle 13.
[0032] In summary, the embodiment of the present utility model provides a bronchoscope biopsy sampling device. When in use, the doctor inserts the bronchoscope into the patient's body, locates the suspected diseased tissue through the imaging device, and then pulls the pull block 7 downward through the handle 3, thereby driving the connecting rod 6 to move forward, thereby driving the push block 9 to slide forward along the push rod 19, and further overcoming the elastic force of the return spring 18, pushing the push disk 11 and the biopsy needle 13 forward to make its tip penetrate deeper into the tissue for sampling; after the above sampling operation is completed, the doctor releases the handle 3, and the return spring 18 releases energy, pushing the push disk 11 and the biopsy needle 13 back to the initial position. During the sampling process, by controlling the magnitude of the pulling force applied to the pull block 7, the sampling depth of the biopsy needle 13 can be flexibly adjusted, thereby improving the accuracy and success rate of sampling. And due to the adjustable ejection distance of the biopsy needle 13, the doctor can more precisely control the sampling process and reduce the damage to the surrounding healthy tissues.
[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the principles described in the specification are only the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A bronchoscopic biopsy sampling device, characterized in that: The invention comprises a fixed pipe (1) and a connecting pipe (2), wherein a propulsion disc (11) is provided between the fixed pipe (1) and the connecting pipe (2), and the upper and lower ends of the propulsion disc (11) are fixedly connected with a clamping block (10) which is in contact with the inner wall of the fixed pipe (1), and a base (12) is provided on the front side of the propulsion disc (11), and a biopsy needle (13) is fixedly provided on the base (12), and a first connecting plate (14) is provided inside the fixed pipe (1) and at one end away from the propulsion disc (11); A second connecting plate (16) is provided inside the connecting tube (2) corresponding to the first connecting plate (14), a guide rod (17) is provided between the first connecting plate (14) and the second connecting plate (16), and a return spring (18) is provided between the propulsion disc (11) and the first connecting plate (14).
2. A bronchoscopic biopsy sampling device according to claim 1, characterized in that: A needle tube (15) is provided on the front side of the fixed pipe (1), and the biopsy needle (13) penetrates the first connecting plate (14) and extends to the interior of the needle tube (15).
3. A bronchoscopic biopsy sampling device according to claim 1, characterized in that: A propulsion rod (19) is provided on the rear side of the second connecting plate (16), and the front end of the propulsion rod (19) passes through the other side of the second connecting plate (16) and is connected to a limiting block (20).
4. A bronchoscopic biopsy sampling device according to claim 1, characterized in that: A notch (201) is provided at the bottom of the connecting pipe (2).
5. A bronchoscopic biopsy sampling device according to claim 1, characterized in that: A handle (3) is fixedly connected to one side of the bottom of the connecting tube (2); a fixed block (4) is provided on the top of the handle (3); a connecting rod (6) is movably connected to the inner side of the fixed block (4) via a first connecting shaft (5); a pull block (7) is fixedly connected to the bottom of one end of the connecting rod (6); the pull block (7) is movably arranged in the notch (201) via a second connecting shaft (8); and a push block (9) is fixedly connected to the side of the connecting rod (6) away from the pull block (7).
6. A bronchoscopic biopsy sampling device according to claim 5, characterized in that: The upper part of the push block (9) is fixedly sleeved on the outside of the push rod (19).
7. A bronchoscopic biopsy sampling device according to claim 2, characterized in that: In the initial state, the front end of the biopsy needle (13) extends to the front end of the needle tube (15).