Bronchus occlusion catheter with prevention of displacement of the occlusion
By introducing a capping and clamping device into the bronchial occlusion catheter and using an elastic strip and threaded rod to drive the clamping assembly, the problem of bronchial occlusion catheter dislodgement during surgery was solved, achieving stable fixation of the bronchus and avoiding the risk of single-lung ventilation failure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUANLONG (SHANGHAI) BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-01-15
- Publication Date
- 2026-06-05
AI Technical Summary
The existing bronchial occlusion catheters lack a fixing device, making them prone to dislodgement during surgery. This can lead to balloon displacement, and in severe cases, result in failure of one-lung ventilation or endanger the patient's life.
A bronchial occlusion catheter including a capping device and a clamping device was designed. The bronchial tube is fixed by a handwheel driven by the elastic strip, the capping component and the clamping component, and the threaded rod is driven by the handwheel to prevent loosening.
It effectively prevents the bronchus from becoming dislodged during surgery, ensures the fixation of the endotracheal tube, avoids single-lung ventilation failure, and protects patient safety.
Smart Images

Figure CN224320907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bronchial occlusion catheter technology, and in particular to a bronchial occlusion catheter that can prevent displacement and blockage. Background Technology
[0002] In clinical practice, bronchial occlusion catheters are commonly used for one-lung ventilation. Their main purpose is to isolate the affected lung, prevent fluid secretions from flowing into the healthy lung, and achieve ventilation of only one lung. For example, as shown in Chinese patent application number CN202220295102.0, a bronchial occlusion catheter capable of preventing displacement and blockage, the external catheter includes a first indicator balloon, a first inflation tube, and a first balloon. One end of the first inflation tube penetrates the outer wall of the external catheter and communicates with the first balloon. The internal catheter includes a second indicator balloon, a second inflation tube, and a second balloon. One end of the second inflation tube penetrates the outer wall of the internal catheter and communicates with the second balloon. The insertion end of the external catheter is an oblique cut.
[0003] However, when using the connector body to control the bronchus to enter the patient's body, the lack of a device to fix the bronchus in the occlusion catheter makes it easy for the fixation clip to be knocked off during the operation, which may make it difficult to maintain the original fixed state of the occlusion catheter, causing the balloon of the occlusion catheter to shift. In severe cases, it may lead to failure of one-lung ventilation or endanger the patient's life. Utility Model Content
[0004] To address the issues raised in the background art, such as the lack of a device for fixing the bronchus in the occlusion catheter, which poses a risk of dislodgement during surgery due to the removal of the fixing clip, making it difficult to maintain the original fixation of the occlusion catheter and causing balloon displacement, potentially leading to one-lung ventilation failure or endangering the patient's life in severe cases, this utility model provides the following technical solution:
[0005] A bronchial occlusion catheter that can prevent displacement and blockage includes a bronchus inserted into the occlusion catheter. The top end of the occlusion catheter is provided with a sealing device for sealing and tightening the occlusion catheter. The sealing device is provided with a clamping device for clamping and fixing the bronchus.
[0006] The occlusion catheter is equipped with three elastic strips for fixing the bronchus.
[0007] The sealing device includes a sealing assembly disposed at the top of the sealing conduit, and a fixing strip for sealing and tightening the sealing conduit by the sealing assembly is movably connected to the top of the sealing conduit.
[0008] The clamping device includes two clamping components disposed within the sealing device for clamping and fixing the bronchus. The two clamping components move in opposite directions. The sealing device is provided with a driving component for driving the two clamping components to move in opposite directions.
[0009] Furthermore, the left side of the sealing conduit is provided with anti-blocking pipe one and anti-blocking pipe two for maintaining ventilation of the sealing conduit, and anti-blocking pipe one and anti-blocking pipe two are located on the left and right sides of the sealing conduit, respectively.
[0010] Furthermore, the sealing assembly includes a cap disposed at the top of the sealing conduit for sealing the sealing conduit, and a clamping strip is fixedly installed at the top of the cap for cooperating with the fixing strip to seal the cap to the sealing conduit, and there are two clamping strips.
[0011] Furthermore, the drive assembly includes a bidirectional threaded rod disposed within the cap for driving the two clamping assemblies to move in opposite directions. A handwheel for driving the bidirectional threaded rod to rotate is fixedly installed at the right end of the bidirectional threaded rod, and a guide rod for assisting the movement of the clamping assemblies is disposed on the right side of the bidirectional threaded rod.
[0012] Furthermore, the clamping assembly includes a clamping plate disposed on the outside of the bronchus for clamping and fixing the bronchus, a threaded sleeve plate for threaded connection with a bidirectional threaded rod is fixedly installed on the left end of the clamping plate, and a fixing sleeve plate for sliding on the guide rod is fixedly installed on the right end of the clamping plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By incorporating elastic adjustment, a capping device, and a clamping device, when it is necessary to fix the bronchus during surgery, the cap can be inserted into the top of the occlusion catheter, and then the cap can be tightened by two rotating fixing strips locking onto the clamping strip. The bronchus can be clamped and fixed using three elastic strips. Then, by rotating the double-threaded rod with a handwheel, the two threaded sleeves can be moved along the two threaded sections on the double-threaded rod towards the bronchus. At the same time, the fixing sleeves can move along the guide rod and clamp and fix the bronchus to prevent the risk of the bronchus loosening and falling off. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the sealing conduit of this utility model;
[0017] Figure 3 This is a schematic diagram of the sealing device of this utility model;
[0018] Figure 4 This is a front sectional view of the present invention;
[0019] Figure 5 This is a schematic diagram of the clamping device section of this utility model.
[0020] The following is a list of component names represented by the various reference numerals in the attached figures:
[0021] 100 - Blocking conduit, 101 - Anti-blocking tube one, 102 - Anti-blocking tube two, 103 - Elastic strip;
[0022] 200-Closing device, 210-Closing assembly, 211-Cap, 212-Closing adjustment, 220-Fixing strip;
[0023] 300-Bronchi;
[0024] 400-Clamping device, 410-Drive assembly, 411-Handwheel, 412-Double threaded rod, 413-Guide rod, 420-Clamping assembly, 421-Clamping plate, 422-Fixed sleeve plate, 423-Threaded sleeve plate. Detailed Implementation
[0025] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.
[0026] Please see Figures 1-5 This utility model provides a bronchial occlusion catheter that can prevent displacement and blockage.
[0027] It includes a bronchus tube 300 inserted into the occlusion tube 100. The top end of the occlusion tube 100 is provided with a sealing device 200 for sealing and tightening the occlusion tube 100. The sealing device 200 is provided with a clamping device 400 for clamping and fixing the bronchus tube 300.
[0028] The occlusion catheter 100 is provided with an elastic strip 103 for fixing the bronchus 300. There are three elastic strips 103, which are arranged in a circumferential array in the lumen of the occlusion catheter 100. This allows the bronchus 300 to be clamped and fixed using the three elastic strips 103 to prevent the bronchus 300 from falling out.
[0029] On the left side of the sealing conduit 100, there are two anti-blocking pipes 101 and 102 for maintaining ventilation of the sealing conduit 100. The anti-blocking pipes 101 and 102 are located on the left and right sides of the sealing conduit 100, respectively. The top of the anti-blocking pipes 101 and 102 is provided with a breathable membrane, which is only for maintaining the sealing conduit 100 to achieve the blocking effect.
[0030] The sealing device 200 includes a sealing assembly 210 disposed at the top of the sealing conduit 100. The top of the sealing conduit 100 is movably connected to a fixing strip 220 for sealing and tightening the sealing conduit 100 with the sealing assembly 210. There are two fixing strips 220, which are symmetrically arranged front and back and movably connected to the top of the sealing conduit 100, so that the sealing assembly 210 can be fixed to the top of the sealing conduit 100 by the two fixing strips 220.
[0031] The sealing assembly 210 includes a cap 211 disposed at the top of the sealing conduit 100 for sealing the sealing conduit 100. A clamping strip 212 is fixedly installed at the top of the cap 211 for cooperating with the fixing strip 220 to seal the cap 211 to the sealing conduit 100. There are two clamping strips 212, which are welded symmetrically to the top of the cap 211.
[0032] The clamping device 400 includes a clamping component 420 disposed within the covering device 200 for clamping and fixing the bronchus 300. There are two clamping components 420, and the two clamping components 420 move in opposite directions. The covering device 200 is provided with a driving component 410 for driving the two clamping components 420 to move in opposite directions.
[0033] The drive assembly 410 includes a bidirectional threaded rod 412 disposed within the cap 211 for driving two clamping assemblies 420 to move in opposite directions. The bidirectional threaded rod 412 has two symmetrically arranged threads on its shaft. The threads on these two sections rotate in opposite directions to facilitate the movement of the two clamping assemblies 420 along the two threads on the shaft of the bidirectional threaded rod 412. A handwheel 411 for driving the bidirectional threaded rod 412 to rotate is fixedly mounted on the right end of the bidirectional threaded rod 412, and a guide rod 413 for assisting the movement of the clamping assemblies 420 is disposed on the right side of the bidirectional threaded rod 412.
[0034] The clamping assembly 420 includes a clamping plate 421 disposed outside the bronchus 300 for clamping and fixing the bronchus 300. Several abrasive strips are provided on the side of the clamping plate 421 near the bronchus 300 to prevent slippage of the bronchus 300. A threaded sleeve 423 for threaded connection with the bidirectional threaded rod 412 is fixedly installed at the left end of the clamping plate 421, and a fixing sleeve 422 for sliding on the guide rod 413 is fixedly installed at the right end of the clamping plate 421. Therefore, when it is necessary to fix the bronchus 300 during surgery, it can be fixed by using the cap 211. Insert the cap 211 into the top of the occlusion tube 100, and then lock it onto the snap-fit strip 212 with two rotating fixing strips 220 to tighten the cap 211. Use three elastic strips 103 to clamp and fix the bronchus 300. Then, drive the bidirectional threaded rod 412 to rotate through the handwheel 411, so that the two threaded sleeves 423 can move closer to the bronchus 300 along the two threaded sections on the body of the bidirectional threaded rod 412. At the same time, the fixing sleeve 422 can move along the guide rod 413 and clamp and fix the bronchus 300 to prevent the risk of the bronchus 300 loosening and falling off.
[0035] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.
Claims
1. A bronchial occlusion catheter capable of preventing displacement and blockage, comprising a bronchus (300) inserted into the occlusion catheter (100), characterized in that: The top end of the sealing conduit (100) is provided with a sealing device (200) for sealing and tightening the sealing conduit (100), and the sealing device (200) is provided with a clamping device (400) for clamping and fixing the bronchus (300). The occlusion tube (100) is provided with an elastic strip (103) for fixing the bronchus (300), and there are three elastic strips (103); The sealing device (200) includes a sealing assembly (210) disposed at the top end of the sealing conduit (100), and a fixing strip (220) for sealing the sealing conduit (100) with the sealing assembly (210) is movably connected to the top end of the sealing conduit (100). The clamping device (400) includes a clamping assembly (420) disposed within the covering device (200) for clamping and fixing the bronchus (300), and there are two clamping assemblies (420) with opposite directions of movement. The covering device (200) is provided with a driving assembly (410) for driving the two clamping assemblies (420) to move in opposite directions.
2. The bronchial occlusion catheter with anti-displacement and anti-blockage capability according to claim 1, characterized in that: The left side of the sealing conduit (100) is provided with an anti-blocking pipe one (101) and an anti-blocking pipe two (102) for maintaining ventilation of the sealing conduit (100), and the anti-blocking pipe one (101) and the anti-blocking pipe two (102) are located on the left and right sides of the sealing conduit (100), respectively.
3. The bronchial occlusion catheter with anti-displacement and anti-blockage capability according to claim 1, characterized in that: The sealing assembly (210) includes a cap (211) disposed at the top of the sealing conduit (100) for sealing the sealing conduit (100). The top of the cap (211) is fixedly installed with a clamping strip (212) for cooperating with the fixing strip (220) to seal the cap (211) to the sealing conduit (100). There are two clamping strips (212).
4. The bronchial occlusion catheter with anti-displacement and anti-blockage capability according to claim 3, characterized in that: The drive assembly (410) includes a bidirectional threaded rod (412) disposed inside the cap (211) for driving two clamping assemblies (420) to move in opposite directions. A handwheel (411) for driving the bidirectional threaded rod (412) to rotate is fixedly installed at the right end of the bidirectional threaded rod (412), and a guide rod (413) for assisting the movement of the clamping assembly (420) is disposed on the right side of the bidirectional threaded rod (412).
5. The bronchial occlusion catheter with anti-displacement and anti-blockage capability according to claim 4, characterized in that: The clamping assembly (420) includes a clamping plate (421) disposed outside the bronchus (300) for clamping and fixing the bronchus (300). A threaded sleeve plate (423) for threaded connection with the bidirectional threaded rod (412) is fixedly installed at the left end of the clamping plate (421), and a fixing sleeve plate (422) for sliding on the guide rod (413) is fixedly installed at the right end of the clamping plate (421).