Ultrasonic bronchoscopic sampling device

Abstract

The present invention discloses an ultrasonic bronchoscopic sampling device, comprising a tube body and a working channel. The tube body is provided with a working channel and a clamping ring. The clamping ring is slidably arranged in the working channel, and a puncture needle for sampling can be placed in the working channel. The puncture needle is provided with a protrusion, and the protrusion can be movably clamped into the clamping ring. In addition, an air cushion ring is fixedly provided at the output end of the tube body, and the air cushion ring can fix the position of the tube body in the patient's trachea.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to an ultrasonic bronchoscopic sampling device. Background Art

[0002] Ultrasound bronchoscope is a device with an ultrasound probe installed at the front end of the bronchoscope. It can perform transbronchial needle aspiration biopsy under real-time ultrasound guidance. This process uses a bronchoscope to insert a puncture needle into the patient's body for sampling and biopsy.

[0003] At present, bronchoscopic sampling is performed by professional medical staff. During sampling, the depth of the needle inserted into the patient's body is difficult to control. If you are not careful, it may cause bleeding and cause the patient to suffocate, which is very dangerous. In addition, the puncture needle is generally inserted after the bronchoscope is inserted into the sampling point. The bronchoscope may deviate during this process, resulting in inaccurate sampling.

[0004] Therefore, it is necessary to provide an ultrasonic bronchoscopic sampling device to solve the problems raised in the above background technology. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultrasonic bronchoscopic sampling device, comprising:

[0006] tube body;

[0007] A working channel is provided inside the tube body;

[0008] A snap ring is slidably provided in the working channel;

[0009] Moreover, a puncture needle for sampling can be placed in the working channel, and a protrusion is provided on the puncture needle, and the protrusion can be movably clamped into the clamping ring;

[0010] Furthermore, an air cushion ring is fixedly provided at the output end of the tube body, and the air cushion ring can fix the position of the tube body in the patient's trachea.

[0011] Furthermore, as a preference, a light guide and an air delivery pipe are further provided inside the tube body;

[0012] An ultrasonic probe is fixedly provided at the output end of the tube body, and the other end thereof is fixedly connected to the operating handle.

[0013] Further, preferably, the air cushion ring includes a ring seat, a rubber pad and an airbag, wherein the ring seat is fixedly arranged on the tube body, a plurality of sliding grooves are opened on the ring seat, a rubber pad is sealingly and slidingly arranged inside the sliding groove, the rubber pad is connected to the sliding groove by an airbag, and the inflation of the airbag can push the rubber pad to slide out of the sliding groove.

[0014] Further, as a preference, the retaining ring includes a holder, a stopper 1, a stopper 2 and a movable member, wherein the holder is slidably arranged in the working channel, a plurality of stopper 1s are arranged on the right side of the holder in a circular rotation, a stopper 2 corresponding to the position of the stopper 1 is fixedly arranged on the left side of the holder, the protrusion can slide between the stopper 1 and the stopper 2 to limit its position, and the movable member is fixedly arranged on the outside of the holder, and is used to control the sliding of the holder inside the working channel.

[0015] Furthermore, preferably, the stopper 1 is in an arc shape, and both sides of the rotating end of the stopper 1 are connected to the holder via a spring.

[0016] Further, preferably, the movable part includes a hydraulic rod, a slider 1 and a slider 2, wherein the slider 1 is fixedly arranged on the base, the slider 2 is fixedly arranged outside the working channel, a slide rail is provided on the working channel, the slider 1 protrudes from the slide rail, one end of the hydraulic rod is rotatably arranged on the slider 1, and the other end thereof is rotatably arranged on the slider 2, and the outside of the hydraulic rod is connected to a water supply pipe.

[0017] Furthermore, preferably, a pressure sensor is embedded in the rubber pad, a flow meter is provided on the airbag, and a controller is provided in the operating handle, and the controller is used to control the extension and retraction amount of the hydraulic rod;

[0018] When the pressure sensor detects pressure, the flow meter transmits the current first flow data to the controller. When the pressure sensor detects that the pressure exceeds the threshold, the flow meter transmits the current second flow data to the controller. The controller calculates the distance between the tube body and the tracheal wall based on the first flow data and the second flow data and adjusts the extension and retraction of the hydraulic rod based on this distance.

[0019] Furthermore, preferably, the hydraulic rod is controlled by the controller, the puncture needle is controlled by the operating handle, and the controller is configured to have two control modes, namely mode 1 and mode 2;

[0020] Mode 1 is as follows: the puncture needle can be manipulated by the operating handle, and the controller controls the hydraulic rod to adjust the initial position of the clamping ring so that it has a restrictive effect on the puncture needle. Moreover, when the puncture needle is working, the controller can control the hydraulic rod to slightly adjust the position of the clamping ring so that the clamping ring has a safe movable distance.

[0021] The second mode is: after the puncture needle is clamped into the clamping ring, the controller controls the hydraulic rod to extend and retract and drives the clamping ring to slide, and the sliding of the clamping ring drives the puncture needle to move to perform automatic sampling.

[0022] Compared with the prior art, the present invention provides an ultrasonic bronchoscopic sampling device with the following beneficial effects:

[0023] The present invention is equipped with an air cushion ring, which fixes the bronchoscope after it is inserted into the designated point to ensure the accuracy of sampling. The present invention is also equipped with a controller and a clamping ring, so that it has two sampling modes. When sampling, different sampling modes can be selected according to the different biological tissues that the patient needs to sample, namely mode one and mode two. When sampling in mode one, the clamping ring can limit the puncture needle to prevent the puncture needle from puncturing too deeply and causing bleeding. When sampling in mode two, the clamping ring can be used as a control component, which can be used to operate the puncture needle for sampling by adjusting the controller. During the sampling process, a stopper 1 is provided in the clamping ring through a spring rotation. The puncture needle can perform sampling within the safety threshold of the spring, and when the force applied to the puncture needle during puncture sampling exceeds this safety threshold, the stopper 1 can be deflected to cause the puncture needle to slide out of the control range of the rotating ring to prevent the puncture needle from puncturing too deeply and causing bleeding. The two sampling modes further increase the safety of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram;

[0026] Figure 3 Schematic diagram of the overall structure of the air cushion ring in the present invention;

[0027] Figure 4 It is a schematic diagram of the overall structure of the clamping ring in the present invention.

[0028] In the figure: 1. Tube body; 2. Air cushion ring; 21. Ring seat; 22. Rubber pad; 23. Airbag; 24. Slide; 3. Working channel; 4. Snap ring; 41. Snap seat; 42. Stopper 1; 43. Stopper 2; 44. Moving part; 441. Hydraulic rod; 442. Slider 1; 443. Slider 2; 5. Light guide; 6. Ultrasonic probe; 7. Air pipe; 8. Puncture needle; 81. Bump; 9. Operating handle. DETAILED DESCRIPTION

[0029] Example: See Figures 1 to 4 , in an embodiment of the present invention, including:

[0030] tube body 1;

[0031] A working channel 3 is provided inside the tube body 1;

[0032] A snap ring 4 is slidably provided in the working channel 3;

[0033] Furthermore, a puncture needle 8 for sampling can be placed in the working channel 3. The puncture needle 8 is provided with a protrusion 81, and the protrusion 81 can be movably clamped into the clamping ring 4.

[0034] Furthermore, an air cushion ring 2 is fixedly provided at the output end of the tube body 1, and the air cushion ring 2 can fix the position of the tube body 1 in the patient's trachea.

[0035] During implementation, the tube body 1 is inserted into the patient's body, and after it reaches the designated location by observing it with the ultrasonic probe 6, it is fixed by the air cushion ring 2. Then, the puncture needle 8 is inserted into the working channel 3 and its position is limited by the clamping ring 4, and safe sampling is carried out.

[0036] In this embodiment, Figure 1 、 2 , the tube body 1 is further provided with a light guide 5 and a gas delivery pipe 7;

[0037] An ultrasonic probe 6 is fixedly provided at the output end of the tube body 1 , and the other end thereof is fixedly connected to an operating handle 9 .

[0038] During implementation, the sampling work is controlled by the operating handle 9, and the light guide 5 is used for illumination. Under the guidance of the ultrasonic probe 6, the tube body 1 is extended to the sampling point, and then the puncture needle 8 is inserted to perform sampling.

[0039] In this embodiment, Figure 3 The air cushion ring 2 includes a ring seat 21, a rubber pad 22 and an airbag 23, wherein the ring seat 21 is fixedly arranged on the tube body 1, and a plurality of slide grooves 24 are opened on the ring seat 21. The rubber pad 22 is sealed and slidably arranged inside the slide groove 24. The rubber pad 22 and the slide groove 24 are connected by the airbag 23. The inflation of the airbag 23 can push the rubber pad 22 to slide out of the slide groove 24.

[0040] During implementation, gas is filled into the airbag 23, which pushes the rubber pad 22 to slide outward along the slide groove 24 until it presses against the tracheal wall to fix the tube body 1, thereby facilitating the sampling operation. The rubber pads 22 are arranged in a ring-shaped pattern, and there are gaps between the multiple rubber pads 22 to ensure that the air cushion will not block the trachea when inflated, thereby ensuring that the patient can breathe smoothly.

[0041] In this embodiment, Figure 4The retaining ring 4 includes a base 41, a stopper 42, a stopper 43 and a movable member 44, wherein the base 41 is slidably arranged in the working channel 3, a plurality of stoppers 42 are arranged on the right side of the base 41 for circular rotation, and a stopper 43 corresponding to the position of the stopper 42 is fixedly arranged on the left side of the base 41, and the protrusion 81 can slide between the stopper 42 and the stopper 43 to limit its position, and the movable member 44 is fixedly arranged on the outside of the base 41, and is used to control the sliding of the base 41 inside the working channel 3.

[0042] During implementation, after adjusting the retaining ring 4 to a suitable position, the puncture needle 8 is placed in the working channel 3. When the puncture needle 8 is inserted, the protrusion provided on its surface will first touch the stopper 42. At this time, the stopper 42 is deflected to allow the puncture needle to pass through, and then it touches the stopper 43 and cannot extend forward any further. At this time, the puncture needle 8 is stuck between the stopper 42 and the stopper 43, and then sampling is performed. After the sampling is completed, the puncture needle can be removed by simply pulling the puncture needle 8 to squeeze the stopper 42 and deflect it.

[0043] In addition, when the puncture needle 8 is taking samples, it has a certain movable space between the stopper 1 42 and the stopper 2 43 for adjusting the sampling angle to ensure accurate sampling.

[0044] In this embodiment, Figure 4 The stopper 42 is in an arc shape, and both sides of the rotating end of the stopper 42 are connected to the holder 41 through a spring.

[0045] In particular, the stopper 42 is configured to be arc-shaped, so that the resistance of the stopper 42 is reduced, making it easier for the puncture needle 8 to enter and be pulled out.

[0046] In this embodiment, Figure 4 The moving part 44 includes a hydraulic rod 441, a slider 1 442 and a slider 2 443, wherein the slider 1 442 is fixedly set on the base 41, the slider 2 443 is fixedly set outside the working channel 3, a slide rail is provided on the working channel 3, and the slider 1 442 protrudes from the slide rail. One end of the hydraulic rod 441 is rotatably set on the slider 1 442, and the other end is rotatably set on the slider 2 443. The outside of the hydraulic rod 441 is connected to the water supply pipe.

[0047] During implementation, the position of the clamping ring 4 in the working channel 3 is controlled by the hydraulic rod 441. According to the sampling needs, the puncture needle 8 is clamped in a suitable position for sampling, and the hydraulic rod 441 is rotatably connected to the slider 1 442 and the slider 2 443. It can ensure that when the working channel 3 is deflected, the hydraulic rod 441 can adjust the position of the clamping ring 4 on the working channel 3.

[0048] In this embodiment, a pressure sensor is embedded in the rubber pad 22, a flow meter is provided on the airbag 23, and a controller is provided in the operating handle 9, and the controller is used to control the extension and contraction amount of the hydraulic rod 441;

[0049] When the pressure sensor detects pressure, the flow meter transmits the current first flow data to the controller. When the pressure sensor detects that the pressure exceeds the threshold, the flow meter transmits the current second flow data to the controller. The controller calculates the distance between the tube body 1 and the tracheal wall based on the first flow data and the second flow data and adjusts the extension and retraction of the hydraulic rod based on this distance.

[0050] During implementation, the controller roughly calculates the position of the tube body 1 from the tracheal wall based on the first flow data and the second flow data transmitted by the flow meter, and then controls the extension and contraction of the hydraulic rod 441 in combination with the point where sampling is required, and further drives the clamping ring 4 to slide to the appropriate position before sampling.

[0051] In this embodiment, the hydraulic rod 441 is controlled by the controller, and the puncture needle 8 is controlled by the operating handle 9. The controller is configured to have two control modes, namely mode 1 and mode 2.

[0052] Mode 1 is as follows: the puncture needle 8 can be manipulated by the operating handle 9, and the controller controls the hydraulic rod 441 to adjust the initial position of the clamping ring 4 so that it restricts the puncture needle 8. Furthermore, when the puncture needle 8 is working, the controller controls the hydraulic rod 441 to slightly adjust the position of the clamping ring 4 so that the clamping ring 4 has a safe movable distance.

[0053] The second mode is: after the puncture needle 8 is clamped into the clamp ring 4, the controller controls the hydraulic rod 441 to extend and retract and drive the clamp ring 4 to slide, and the sliding of the clamp ring 4 drives the puncture needle 8 to move to perform automatic sampling.

[0054] During implementation, different sampling modes can be selected according to different sampling situations. When the biological tissue at the sampling point is relatively soft, mode 1 is selected for manual sampling. During the sampling process, the clamp ring 4 mainly serves to limit the puncture needle 8 to prevent bleeding due to improper sampling. The clamp ring 4 can also be slightly adjusted in position under the limiting effect, so that the puncture needle 8 removes the active distance between the stopper 1 42 and the stopper 2 43, and adds a safety distance adjusted by the clamp ring 4, making the sampling work of the puncture needle 8 safer and more accurate.

[0055] When the biological tissue at the sampling point is hard, it is difficult to control the puncture force during manual sampling, and it is easy to puncture too deeply and cause bleeding. At this time, mode 2 is used for sampling, and the clamping ring 4 controls the puncture needle 8 to perform sampling. During this process, the block 1 42 can push the protrusion 81 and drive the puncture needle 8 to slide into the patient's biological tissue for sampling. At this time, the spring has a safety threshold. When this safety threshold is exceeded, the puncture needle 8 will squeeze the block 1 42 to cause it to deflect, thereby causing the puncture needle 8 to withdraw from the clamping ring 4 to prevent the puncture needle 8 from puncturing too deeply and causing bleeding.

[0056] To sum up, when the present device is implemented, the tube body 1 is first extended to the sampling point under the guidance of the ultrasonic probe 6, and then the air cushion ring 2 is inflated to fix the position of the tube body 1. At the same time, the expansion and contraction amount of the airbag 23 is transmitted to the controller. The controller controls the expansion and contraction of the hydraulic rod 441 to drive the clamping ring 4 to slide to the appropriate position, and then the puncture needle 8 is inserted, and different sampling methods are selected for sampling according to the different biological tissues that the patient needs to sample, so that the sampling process is safe and the samples obtained are more accurate.

[0057] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An ultrasonic bronchoscopic sampling device, characterized in that: include: tube body(1); A working channel (3), wherein the tube body (1) is provided with a working channel (3); A snap ring (4), wherein the snap ring (4) is slidably arranged in the working channel (3); A puncture needle (8) for sampling can be placed in the working channel (3), and a protrusion (81) is provided on the puncture needle (8), and the protrusion (81) can be movably clamped into the clamping ring (4); An air cushion ring (2) is also fixedly provided at the output end of the tube body (1), and the air cushion ring (2) can fix the position of the tube body (1) in the patient's trachea; The snap ring (4) includes a card seat (41), a stopper 1 (42), a stopper 2 (43) and a moving part (44); the card seat (41) is slidably arranged in the working channel (3); a plurality of stopper 1s (42) are arranged on the right side of the card seat (41) so as to rotate in a circle; a stopper 2 (43) corresponding to the position of the stopper 1 (42) is fixedly arranged on the left side of the card seat (41); the protrusion (81) can slide between the stopper 1 (42) and the stopper 2 (43) to limit their positions; the moving part (44) is fixedly arranged outside the card seat (41) and is used to control the sliding of the card seat (41) inside the working channel (3); The movable member (44) includes a hydraulic rod (441), a slider 1 (442) and a slider 2 (443). A controller is provided in the operating handle (9). The hydraulic rod (441) is controlled by the controller, and the puncture needle (8) is controlled by the operating handle (9). The controller is configured to have two control modes, namely mode 1 and mode 2. The first mode is as follows: the puncture needle (8) can be manipulated by the operating handle (9), and the controller controls the hydraulic rod (441) to adjust the initial position of the clamping ring (4) so ​​that it has a limiting effect on the puncture needle (8). Moreover, when the puncture needle (8) is working, the controller can control the hydraulic rod (441) to slightly adjust the position of the clamping ring (4) so ​​that the clamping ring (4) has a safe movable distance. The second mode is: after the puncture needle (8) is inserted into the clamping ring (4), the controller controls the hydraulic rod (441) to extend and retract and drive the clamping ring (4) to slide, and the sliding of the clamping ring (4) drives the puncture needle (8) to move and perform automatic sampling.

2. The ultrasonic bronchoscopic sampling device according to claim 1, characterized in that: A light guide (5) and an air delivery pipe (7) are also provided inside the tube body (1); An ultrasonic probe (6) is fixedly provided at the output end of the tube body (1), and the other end thereof is fixedly connected to an operating handle (9).

3. The ultrasonic bronchoscopic sampling device according to claim 1, characterized in that: The air cushion ring (2) comprises a ring seat (21), a rubber pad (22) and an air bag (23); the ring seat (21) is fixedly arranged on the tube body (1); a plurality of slide grooves (24) are provided on the ring seat (21); a rubber pad (22) is sealed and slidably arranged inside the slide groove (24); the rubber pad (22) and the slide groove (24) are connected via the air bag (23); the air bag (23) is inflated to push the rubber pad (22) to slide out of the slide groove (24).

4. The ultrasonic bronchoscopic sampling device according to claim 1, characterized in that: The stopper 1 (42) is in an arc shape, and both sides of the rotating end of the stopper 1 (42) are connected to the clamping seat (41) via springs.

5. The ultrasonic bronchoscopic sampling device according to claim 1, characterized in that: The slider 1 (442) is fixedly arranged on the base (41), the slider 2 (443) is fixedly arranged outside the working channel (3), a slide rail is provided on the working channel (3), the slider 1 (442) protrudes from the slide rail, one end of the hydraulic rod (441) is rotatably arranged on the slider 1 (442), and the other end thereof is rotatably arranged on the slider 2 (443), and the outside of the hydraulic rod (441) is connected to a water supply pipe.

6. The ultrasonic bronchoscopic sampling device according to claim 3, characterized in that: A pressure sensor is embedded in the rubber pad (22), a flow meter is provided on the airbag (23), and the controller is used to control the extension and contraction amount of the hydraulic rod (441); When the pressure sensor detects pressure, the flow meter transmits current first flow data to the controller. When the pressure sensor detects that the pressure exceeds a threshold, the flow meter transmits current second flow data to the controller. The controller calculates the distance between the tube body (1) and the tracheal wall based on the first flow data and the second flow data and adjusts the extension and contraction amount of the hydraulic rod (441) based on the distance.

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