Ultrasonic endoscope puncture sampling needle
By designing an endoscopic ultrasound puncture sampling needle and employing a sampling tube, sampling needle body, and airbag system, the problems of small sample volume and multiple punctures in existing technologies have been solved, enabling multiple sampling while reducing trauma.
Patent Information
- Application Number
- CN202520219375.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing endoscopic ultrasound sampling needles can only perform quantitative sampling each time, resulting in a small sample size. Multiple punctures are required, making the sampling process complex.
An ultrasound endoscopic puncture sampling needle was designed, comprising a sampling tube, a sampling needle body, a puncture needle body, and an air balloon system. It separates tumor tissue through negative pressure adsorption and cutting head cutting, and uses the air balloon system to achieve multiple sampling, avoiding secondary puncture.
This allows for repeated sampling without a second puncture, reducing trauma to the wound while ensuring the accuracy and efficiency of multiple sampling locations.
Smart Images
Figure CN223759829U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sampling needle technical field especially relates to an ultrasonic endoscope puncture sampling needle. BACKGROUND
[0002] The ultrasonic endoscope puncture sampling needle is a tool for accurately puncturing and sampling the lesion site in the body under the guidance of an ultrasonic endoscope, which combines the advantages of an endoscope and ultrasonography, can display the position, size, shape and relationship with the surrounding tissue of the lesion site in real time, and thus guide the puncture needle to accurately reach the target area for sampling.
[0003] The current sampling method usually first stabs a guide needle into the outside of the tumor, and then stabs a puncture needle into the inside of the tumor under the guidance of the guide needle for puncture sampling. However, the existing puncture sampling device can only perform quantitative sampling each time, and the obtained sample is less. If more samples are to be obtained, multiple puncture sampling needs to be performed, and the sampling process is relatively complex. Therefore, the utility model is proposed. UTILITY MODEL CONTENT
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide an ultrasonic endoscope puncture sampling needle which can overcome the above problems or at least partially solve the above problems.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An ultrasonic endoscope puncture sampling needle, comprising a sampling cylinder, further comprising: a sampling needle body in communication below the sampling cylinder, a sampling groove is formed on the sampling needle body, and the sampling groove is used to adsorb sampling tissue; a puncture needle body is slidably connected to the sampling needle body, a cutting head is arranged at the bottom of the puncture needle body, and the puncture needle body is used to cut and separate the sampling tissue adsorbed in the sampling groove; an air exchange cylinder is connected to the sampling cylinder through threads, a cylindrical air bag is fixedly connected in the air exchange cylinder, a gas outlet hole is in communication with the top of the cylindrical air bag, a one-way valve is arranged in the gas outlet hole to limit the entry of external air into the inside of the cylindrical air bag; an air inlet hole is in communication below the cylindrical air bag, and a one-way valve is arranged in the air inlet hole to limit the entry of air in the cylindrical air bag into the inside of the sampling cylinder.
[0007] Preferably, a plurality of puncture surfaces and separation surfaces are formed at the bottom end of the sampling needle body respectively, the included angles of the puncture surfaces and the separation surfaces with the central axis of the sampling needle body are a and b respectively, the angle of the included angle a is smaller than the angle of the included angle b, the puncture surfaces are used to break the tumor tissue, and the separation surfaces are used to guide the separation of the tumor tissue.
[0008] Preferably, a push rod is fixedly connected above the cylindrical air bag, and a compression spring is connected between the push rod and the air exchange cylinder.
[0009] Further, a plurality of air exchange holes are formed on the air exchange cylinder to balance the air pressure between the air exchange cylinder and the outside.
[0010] Preferably, a limiting cylinder is fixedly connected below the sampling cylinder, a supporting plate is slidably connected in the limiting cylinder, and the supporting plate is fixedly connected with the puncture needle body.
[0011] Further, a limiting rod is fixedly connected on the supporting plate, and a second sliding groove is formed on the limiting cylinder, and the limiting rod is slidably connected on the second sliding groove.
[0012] Further, an excitation spring is fixedly connected between the supporting plate and the limiting cylinder, and the excitation spring is used to push the puncture needle body to cut the tumor tissue.
[0013] Further, a rotating cylinder is rotatably connected on the limiting cylinder, a first sliding groove is formed on the rotating cylinder, and the limiting rod is slidably connected on the first sliding groove, and when the limiting rod is slid from the horizontal groove above the first sliding groove to the inclined groove, the puncture needle body is excited.
[0014] Compared with the prior art, the ultrasonic endoscope puncture sampling needle has the following beneficial effects:
[0015] 1. The ultrasonic endoscope puncture sampling needle can adsorb the gas in the sampling needle body through the gas bag, cut the tumor tissue with the puncture needle body, adsorb the cut tumor tissue into the sampling cylinder, repeatedly perform the sampling operation without secondary puncture, reduce the trauma to the wound, and ensure the accuracy of the multiple sampling positions.
[0016] 2. The ultrasonic endoscope puncture sampling needle can make the sampling needle body easily break the tumor cells and push forward through the puncture surface and the separation surface arranged on the sampling needle.
[0017] The parts not involved in the device are the same as or can be realized by the prior art, the ultrasonic endoscope puncture sampling needle can repeatedly perform the sampling operation without secondary puncture, reduce the trauma to the wound, ensure the accuracy of the multiple sampling positions, and make the sampling needle body easily break the tumor cells and push forward during puncture sampling. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The structure diagram of the ultrasonic endoscope puncture sampling needle is provided for the utility model;
[0019] Figure 2 The sectional view of the ultrasonic endoscope puncture sampling needle is provided for the utility model;
[0020] Figure 3 The utility model provides a kind of ultrasonic endoscope puncture sampling needle Figure 2 The structure diagram of enlarged part A in middle;
[0021] Figure 4 The utility model provides a kind of ultrasonic endoscope puncture sampling needle Figure 2 The structure diagram of enlarged part B in middle;
[0022] Figure 5 The explosion view of air exchange cylinder part in a kind of ultrasonic endoscope puncture sampling needle of the utility model;
[0023] Figure 6 The explosion view of rotating cylinder part in a kind of ultrasonic endoscope puncture sampling needle of the utility model.
[0024] In the drawing: 1, sampling cylinder;11, sampling needle body;111, sampling groove;112, puncture surface;113, separation surface;2, air exchange cylinder;21, push rod;22, cylindrical air bag;23, air inlet;24, air outlet;25, compression spring;26, air exchange hole;3, rotating cylinder;31, first sliding groove;32, support plate;33, limit rod;34, excitation spring;35, puncture needle body;351, cutting head;36, limit cylinder;37, second sliding groove. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0026] In the description of the utility model, it should be understood that the orientation or position relationship indicated by terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0027] Embodiment 1: refer to Figures 1-6The utility model discloses an ultrasound endoscope puncture sampling needle, including sampling cylinder 1, still include: the lower intercommunication of sampling cylinder 1 has sampling needle body 11, is equipped with the sampling groove 111 on sampling needle body 11, and the sampling groove 111 is used to adsorb sampling tissue, the sliding connection of sampling needle body 11 has puncture needle body 35, and the bottom of puncture needle body 35 is equipped with cutting head 351, and puncture needle body 35 is used to cut and separate the sampling tissue of sampling groove 111 adsorption, the screw connection of sampling cylinder 1 has the air exchange cylinder 2, and the fixed connection of air exchange cylinder 2 has cylinder air bag 22, and the top intercommunication of cylinder air bag 22 has the air outlet 24, and the one-way valve is equipped in the air outlet 24 and is used to limit the air of outside to enter the inside of cylinder air bag 22, the intercommunication of cylinder air bag 22 below has the air inlet 23, and the one-way valve is equipped in the air inlet 23 and is used to limit the air in cylinder air bag 22 to enter the inside of sampling cylinder 1.
[0028] The utility model discloses a kind of ultrasound endoscope puncture sampling needles, including sampling cylinder 1, still include: the lower intercommunication of sampling cylinder 1 has sampling needle body 11, is equipped with the sampling groove 111 on sampling needle body 11, and the sampling groove 111 is used to adsorb sampling tissue, the sliding connection of sampling needle body 11 has puncture needle body 35, and the bottom of puncture needle body 35 is equipped with cutting head 351, and puncture needle body 35 is used to cut and separate the sampling tissue of sampling groove 111 adsorption, the screw connection of sampling cylinder 1 has the air exchange cylinder 2, and the fixed connection of air exchange cylinder 2 has cylinder air bag 22, and the top intercommunication of cylinder air bag 22 has the air outlet 24, and the one-way valve is equipped in the air outlet 24 and is used to limit the air of outside to enter the inside of cylinder air bag 22, the intercommunication of cylinder air bag 22 below has the air inlet 23, and the one-way valve is equipped in the air inlet 23 and is used to limit the air in cylinder air bag 22 to enter the inside of sampling cylinder 1.
[0029] Example 2: refer to Figures 1-6Further to the embodiment 1, the bottom end of the sampling needle body 11 is provided with a plurality of piercing surfaces 112 and separation surfaces 113, the included angles of the piercing surfaces 112 and the separation surfaces 113 with the central axis of the sampling needle body 11 are a and b respectively, the angle of the included angle a is smaller than the angle of the included angle b, the piercing surfaces 112 are used to break the tumor tissue, the separation surfaces 113 are used to guide the separation of the tumor tissue, the upper end of the cylindrical air bag 22 is fixedly connected with a push rod 21, the push rod 21 is connected with a compression spring 25 between the air cylinder 2, a plurality of air exchange holes 26 are formed in the air cylinder 2, the air exchange holes 26 are used to balance the air pressure between the air cylinder 2 and the outside, the lower end of the sampling cylinder 1 is fixedly connected with a limiting cylinder 36, the limiting cylinder 36 is slidably connected with a supporting plate 32, the supporting plate 32 is fixedly connected with the piercing needle body 35, the supporting plate 32 is fixedly connected with a limiting rod 33, the limiting cylinder 36 is provided with a second sliding groove 37, the limiting rod 33 is slidably connected with the first sliding groove 31, the supporting plate 32 and the limiting cylinder 36 are fixedly connected with an excitation spring 34, the excitation spring 34 is used to push the piercing needle body 35 to cut the tumor tissue, the limiting cylinder 36 is rotatably connected with a rotating cylinder 3, the rotating cylinder 3 is provided with a first sliding groove 31, the limiting rod 33 is slidably connected with the first sliding groove 31, and the piercing needle body 35 is excited when the limiting rod 33 slides from the horizontal groove above the first sliding groove 31 to the inclined groove.
[0030] In the utility model, the smaller included angle a can ensure that the piercing surface 112 can easily break the tumor cells, and the separation surface 113 can guide the separation of the broken tumor cells, so that the advancement of the sampling needle body 11 is facilitated.
[0031] The user can compress the cylindrical air bag 22 by pressing the push rod 21, and the compression amount of the cylindrical air bag 22 in one pressing can complete the sampling of the tumor tissue once.
[0032] The excitation spring 34 can push the piercing needle body 35 to cut the tumor tissue on the sampling groove 111, the user can limit the piercing needle body 35 by rotating the rotating cylinder 3, when the user rotates the rotating cylinder 3 to make the limiting rod 33 stay in the horizontal groove above the first sliding groove 31, the piercing needle body 35 is limited, and the excitation spring 34 is in a compressed state, when the user rotates the rotating cylinder 3 to make the limiting rod 33 slide to the inclined groove on the first sliding groove 31, the excitation spring 34 releases the stored elastic force, and pushes the piercing needle body 35 to move downward to cut the tumor tissue on the sampling groove 111;
[0033] When the user uses, first, the sampling cylinder 1 is installed with the air exchange cylinder 2, and the rotating cylinder 3 is rotated to make the limiting rod 33 slide into the horizontal slot on the first sliding slot 31, then the sampling needle body 11 can be inserted into the tumor along the guide needle, then the tumor tissue can be adsorbed by pressing the push rod 21 and the limiting of the puncture needle body 35 is released by rotating the rotating cylinder 3, so that the sampling of the tumor tissue is completed, if the sample demand is larger, the above pressing and rotating operation can be repeated, after the sampling is completed, the user can disassemble the air exchange cylinder 2 from the sampling cylinder 1, so that the tumor tissue can be taken out from the sampling cylinder 1.
[0034] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. An ultrasonic endoscope puncture biopsy needle comprising a sampling barrel (1), characterized in that, Also include: The lower part of the sampling cylinder (1) is communicated with a sampling needle body (11), and the sampling groove (111) is opened on the sampling needle body (11), which is used to adsorb the sampling tissue; The puncture needle body (35) is slidably connected to the sampling needle body (11), and the cutting head (351) is arranged at the bottom of the puncture needle body (35), which is used to cut and separate the sampling tissue adsorbed in the sampling groove (111); The sampling cylinder (1) is connected with the gas exchange cylinder (2) through threads, the cylindrical air bag (22) is fixedly connected in the gas exchange cylinder (2), the top of the cylindrical air bag (22) is communicated with the air outlet hole (24), and the one-way valve is arranged in the air outlet hole (24) to limit the air outside from entering the inside of the cylindrical air bag (22); The air inlet hole (23) is communicated below the cylindrical air bag (22), and the one-way valve is arranged in the air inlet hole (23) to limit the air in the cylindrical air bag (22) from entering the inside of the sampling cylinder (1).
2. An ultrasonic endoscope puncture biopsy needle according to claim 1, wherein The bottom end of the sampling needle body (11) is provided with a plurality of puncture faces (112) and separation faces (113), respectively, the included angles of the puncture faces (112) and the separation faces (113) with the central axis of the sampling needle body (11) are a and b respectively, the angle of the included angle a is smaller than the angle of the included angle b, the puncture faces (112) are used to break the tumor tissue, and the separation faces (113) are used to guide the separation of the tumor tissue.
3. The ultrasound endoscope puncture biopsy needle according to claim 1, wherein The push rod (21) is fixedly connected above the cylindrical air bag (22), and the compression spring (25) is connected between the push rod (21) and the gas exchange cylinder (2).
4. An ultrasonic endoscope puncture biopsy needle according to claim 3, wherein A plurality of air exchange holes (26) are formed in the gas exchange cylinder (2), and the air exchange holes (26) are used to balance the air pressure between the gas exchange cylinder (2) and the outside.
5. The ultrasound endoscope puncture biopsy needle according to claim 1, wherein The bottom of the sampling cylinder (1) is fixedly connected with a limiting cylinder (36), the supporting plate (32) is slidably connected in the limiting cylinder (36), and the supporting plate (32) is fixedly connected with the puncture needle body (35).
6. An ultrasonic endoscope puncture biopsy needle according to claim 5, wherein The limiting rod (33) is fixedly connected on the supporting plate (32), the second sliding groove (37) is formed in the limiting cylinder (36), and the limiting rod (33) is slidably connected in the second sliding groove (37).
7. An ultrasonic endoscope puncture biopsy needle according to claim 6, wherein The excitation spring (34) is fixedly connected between the supporting plate (32) and the limiting cylinder (36), and the excitation spring (34) is used to push the puncture needle body (35) to cut the tumor tissue.
8. An ultrasonic endoscope puncture biopsy needle according to claim 7, wherein The rotating cylinder (3) is rotatably connected to the limiting cylinder (36), the first sliding groove (31) is formed in the rotating cylinder (3), the limiting rod (33) is slidably connected in the first sliding groove (31), and when the limiting rod (33) slides from the horizontal groove above the first sliding groove (31) to the inclined groove, the puncture needle body (35) is pushed and excited.