Closed drainage skin fixing device for thoracic cavity

Abstract

The invention provides a thoracic cavity closed drainage skin fixing device which comprises a bed connecting frame, a liftable and slidable cross rod arranged on the bed connecting frame, a lifting rod arranged on the cross rod in a liftable manner, a mounting rod arranged at the bottom of the lifting rod, two groups of first sliding frames arranged at the two ends of the mounting rod in a sliding and sleeving manner, and tensioning frames arranged at the bottoms of the first sliding frames. The tensioning frame is slidably sleeved with two sets of second sliding frames, fixing rollers are arranged at the bottoms of the second sliding frames, a first driving mechanism is arranged on the lifting rod, and a second driving mechanism connected with the two sets of second sliding frames is arranged on the tensioning frame. Through the device, the skin on the thoracic cavity can be firmly fixed within a certain range, the device does not need to be held by hands in the skin fixing process, the situation that the skin fixing effect is reduced due to hand shaking is effectively avoided, meanwhile, the traction force of the skin can be adjusted by controlling the descending distance of the transverse rod, and the convenience during thoracic cavity drainage is improved.

Description

Technical Field

[0001] This invention specifically relates to a closed chest drainage skin fixation device. Background Technology

[0002] Closed thoracic drainage is a common treatment for chest diseases such as pneumothorax, hemothorax, and empyema. It involves inserting a drainage tube into the thoracic cavity and connecting it to a closed drainage device to drain air, blood, or pus from the pleural cavity, promoting lung re-expansion and pleural healing. Effective fixation of the skin is crucial during closed thoracic drainage to ensure the stability of the drainage tube and prevent complications such as poor drainage or tube dislodgement.

[0003] For example, Chinese patent CN201870698U discloses a skin fixation device for thoracentesis, consisting of elastic forceps, a support rod, and a rubber sleeve. During thoracentesis, it can fix the skin at the puncture site, preventing contamination of the disinfected puncture site and facilitating a smooth puncture. Another example is Chinese patent CN201235004Y, which provides a skin fixation device for thoracentesis, including a forceps handle and a forceps body. Its distinguishing feature is a steel plate fixed to the side of the forceps body, with a semi-circular rubber ball mounted on the steel plate. These inventions are simple in structure, easy to use, and can fix the skin at the puncture site during thoracentesis, preventing infection and reducing patient discomfort.

[0004] However, in clinical practice, closed chest drainage is mostly performed using handheld tools to fix the skin. This traditional fixation method has significant technical drawbacks. On the one hand, hand tremors are unavoidable during the procedure, especially during prolonged operation or when the doctor is fatigued. The amplitude of these tremors can increase, easily leading to decreased skin fixation, displacement of the drainage tube, and affecting the drainage effect. It may even cause serious consequences such as worsening pneumothorax or spreading infection. On the other hand, it is difficult to precisely control the traction force on the skin when using handheld tools to fix it. In view of this, a closed chest drainage skin fixation device is proposed to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a skin fixation device for closed chest drainage, which solves the technical problems mentioned in the background art, where currently, closed chest drainage is mostly performed by fixing the skin with hand tools. This method is not only prone to reduced skin fixation effect due to hand tremors, but also inconvenient to adjust the traction force on the skin.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a closed chest drainage skin fixation device, comprising: The bed frame is equipped with a liftable and sliding crossbar, the crossbar being equipped with a lifting rod, and the bottom of the lifting rod being equipped with a mounting rod; The first sliding frame is provided in two sets, and is slidably sleeved on both ends of the mounting rod. A tensioning frame is provided at the bottom of the first sliding frame, and two sets of second sliding frames are slidably sleeved on the tensioning frame. A fixing roller is provided at the bottom of the second sliding frame. A first driving mechanism is disposed on the lifting rod to convert the movement of the lifting rod on the crossbar into driving the two sets of first sliding frames to slide in opposite directions; and A second driving mechanism is disposed on the tensioning frame and connected to the two sets of the second sliding frames to convert the sliding of the first sliding frame into driving the two sets of the second sliding frames to slide in opposite directions.

[0007] Furthermore, the connecting bed frame is provided with a mounting sleeve connected by a height adjustment component. The crossbar slides laterally through the mounting sleeve. A set screw is screwed to the side wall of the mounting sleeve, and the end of the set screw abuts against the crossbar.

[0008] Furthermore, the height adjustment component includes: Guide frame, mounted on the connecting bed frame; A lifting sleeve is disposed on the mounting sleeve and is slidably and vertically mounted on the guide frame; and A lead screw is rotatably mounted on the guide frame along its axis and is screwed to the lifting sleeve.

[0009] Furthermore, the first driving mechanism includes: A drive plate is slidably sleeved on the lifting rod along the axis of the lifting rod; The drive frame is provided in two sets, one end of which is hinged to the drive plate, and the other end of which is hinged to the first sliding frame; and A first elastic element is disposed between the drive plate and the crossbar.

[0010] Furthermore, the second drive mechanism includes: The first gear is rotatably mounted on the tensioning frame; Two sets of first racks are arranged opposite each other and are respectively disposed on two sets of second slide frames, and both sets of first racks mesh with the first gear; and A transmission component is disposed on the first slide frame and connected to the first gear to convert the sliding of the first slide frame into driving the first gear to rotate.

[0011] Furthermore, the transmission assembly includes: A connecting bracket is mounted on the mounting rod, and a second toothed rack is provided at the end of the connecting bracket; and The second gear is mounted on the first gear and meshes with the second rack.

[0012] Furthermore, the mounting rod is provided with a mounting post, the end of the mounting post is provided with a baffle, the end of the connecting frame is slidably sleeved on the mounting post, and a second elastic element is provided between the connecting frame and the baffle.

[0013] Furthermore, the fixed roller is provided with a one-way drive component, which can selectively drive the fixed roller to rotate in one direction or release the one-way locking of the fixed roller.

[0014] Furthermore, the unidirectional drive component includes: A lifting frame is vertically and flexibly disposed between the second sliding frame and the fixed roller, and a push plate is provided on the lifting frame; A ratchet is mounted on the fixed roller; A pawl, hinged to the lifting frame by a torsion spring, and engaged with the ratchet; and A ratchet is vertically mounted on the second slide frame, and its end is engaged with the ratchet wheel. A stop block is provided on the ratchet. A third elastic element is provided between the lifting frame and the second slide frame. A fourth elastic element is provided between the lifting frame and the stop block. A pull ring is provided on the ratchet.

[0015] Furthermore, a protective sleeve made of flexible material is fitted onto the fixed roller.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In use, the device is fixed to the operating table with a connecting frame. By controlling the sliding and lifting of the crossbar, multiple sets of fixing rollers can be brought into contact with the patient's chest skin. Further control of the crossbar's descent causes the lifting rod to slide relative to the crossbar. The first drive mechanism then converts the movement of the lifting rod on the crossbar into driving the two sets of first sliding frames to slide in opposite directions, thus controlling the opening of the gap between the two tension frames to tension and fix the skin in one direction. During the sliding of the first sliding frames on the mounting rod, the second drive mechanism converts the sliding of the first sliding frames into driving the two sets of second sliding frames to slide in opposite directions, causing the fixing rollers on each tension frame to slide in opposite directions, thus tensioning and fixing the skin vertically. This allows for firm fixation of the chest skin within a certain range, and the device does not require hand-held operation during fixation, effectively preventing hand tremors that could reduce the skin fixation effect. Furthermore, the traction force on the skin can be adjusted by controlling the descent distance of the crossbar, improving the convenience of chest drainage. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 A three-dimensional structural diagram of a closed chest drainage skin fixation device provided by the present invention; Figure 2 This is a schematic diagram of the bottom structure of the lifting rod in a closed chest drainage skin fixation device of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the tension frame in a closed chest drainage skin fixation device of the present invention; Figure 5 This is a side view of the fixing roller in a closed chest drainage skin fixation device of the present invention; Figure 6 for Figure 5 Enlarged view of region B in the middle; Figure label: 1. Connecting bed frame; 2. Guide frame; 3. Lead screw; 4. Lifting sleeve; 5. Mounting sleeve; 6. Crossbar; 7. Top screw; 8. Lifting rod; 9. Drive plate; 10. First elastic element; 11. Mounting rod; 12. First sliding frame; 13. Drive frame; 14. Mounting column; 15. Baffle; 16. Second elastic element; 17. Connecting frame; 18. Second rack; 19. Tensioning frame; 20. First gear; 21. Second gear; 22. Second sliding frame; 23. First rack; 24. Fixed roller; 25. Protective sleeve; 26. Ratchet; 27. Lifting frame; 28. Pad; 29. ​​Press plate; 30. Third elastic element; 31. Ratchet; 32. Stop block; 33. Fourth elastic element; 34. Pull ring. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0020] Example: like Figure 1 , 2As shown, this invention provides a closed chest drainage skin fixation device, including a bed frame 1. A crossbar 6 is slidably and height-adjustable on the bed frame 1. An installation sleeve 5 connected to the bed frame 1 via a height adjustment assembly is provided on the bed frame 1. The crossbar 6 slides laterally through the installation sleeve 5. A set screw 7 is screwed to the side wall of the installation sleeve 5, with the end of the set screw 7 abutting against the crossbar 6. The height adjustment assembly includes a guide frame 2 on the bed frame 1. A lifting sleeve 4 is provided on the installation sleeve 5, slidably and height-adjustable on the guide frame 2. A rotatable lead screw 3 is provided on the guide frame 2, and the lead screw 3 is screwed to the lifting sleeve 4. A lifting rod 8 is slidably and height-adjustable on the crossbar 6. An installation rod 11 is provided at the bottom of the lifting rod 8. Two sets of first sliding frames 12 are slidably fitted at both ends of the installation rod 11. A tension frame 19 is provided at the bottom of the first sliding frames 12. Two sets of second sliding frames 22 are slidably fitted on the tension frame 19. A fixing roller 24 is provided at the bottom of the second sliding frames 22.

[0021] In use, the device can be fixed to the edge of the operating table using the connecting frame 1. Multiple sets of fixed rollers 24 can be moved to the puncture position by sliding the crossbar 6 within the mounting sleeve 5. The position of the crossbar 6 is then fixed by rotating the set screw 7. The lifting sleeve 4 is then raised or lowered by rotating the screw 3 to control the contact between the multiple sets of fixed rollers 24 and the patient's skin. A flexible protective sleeve 25 is fitted onto the fixed rollers 24 to protect the patient's skin and increase friction between the device and the skin, thereby improving the fixation effect.

[0022] like Figure 1 , 2 As shown, in this embodiment, a first driving mechanism is provided on the lifting rod 8. The first driving mechanism converts the movement of the lifting rod 8 on the crossbar 6 into driving the two sets of first sliding frames 12 to slide in opposite directions. The first driving mechanism includes a driving plate 9 slidably sleeved on the lifting rod 8 along the axis of the lifting rod 8, and two sets of driving frames 13. One end of the driving frame 13 is hinged to the driving plate 9, and the other end is hinged to the first sliding frame 12. A first elastic element 10 is provided between the driving plate 9 and the crossbar 6. After the multiple sets of fixed rollers 24 come into contact with the patient's skin, the screw 3 can be rotated to drive the crossbar 6 to descend, thereby causing the lifting rod 8 and the crossbar 6 to slide relative to each other and compress the first elastic element 10. During the relative sliding process between the lifting rod 8 and the crossbar 6, the drive plate 9 pushes the two sets of first sliding frames 12 to slide in opposite directions, so that the fixed rollers 24 at the bottom of the two sets of tension frames 19 slide in opposite directions. The first elastic element 10 can also make the fixed rollers 24 have an elastic pre-tightening force to elastically fix the skin and avoid skin damage caused by rigid fixation.

[0023] like Figure 2 , 4As shown, in this embodiment, the tensioning frame 19 is provided with a second driving mechanism connected to two sets of second sliding frames 22. The second driving mechanism converts the sliding of the first sliding frame 12 into driving the two sets of second sliding frames 22 to slide in opposite directions. The second driving mechanism includes a first gear 20 rotatably mounted on the tensioning frame 19. Each set of second sliding frames 22 is provided with a first rack 23, and both sets of first racks 23 mesh with the first gear 20. The first sliding frame 12 is provided with a transmission assembly connected to the first gear 20. The transmission assembly converts the sliding of the first sliding frame 12 into driving the first gear 20 to rotate. The transmission assembly includes a connecting frame 17 mounted on the mounting rod 11. The end of the connecting frame 17 is provided with a second rack 18. The first gear 20 is provided with a second gear 21, and the second gear 21 meshes with the second rack 18.

[0024] During the sliding of the two sets of first sliding frames 12 on the mounting rod 11, the second gear 21 and the second rack 18 generate relative movement, thereby controlling the rotation of the second gear 21 and the first gear 20. Through the meshing of the two sets of first gears 20 with the first rack 23, the two sets of second sliding frames 22 slide in opposite directions, driving the two sets of fixed rollers 24 on each tension frame 19 to move in opposite directions, thus providing traction and fixation to the patient's skin in another direction. Furthermore, the appropriate gear ratio of the second gear 21 and the first gear 20 can be selected according to the amount of tension the skin can withstand in the transverse and longitudinal directions to improve the applicability of the device and avoid damage to the patient's skin.

[0025] like Figure 2 , 3 As shown, in this embodiment, a mounting post 14 is provided on the mounting rod 11, and a baffle 15 is provided at the end of the mounting post 14. The end of the connecting frame 17 is slidably sleeved on the mounting post 14, and a second elastic element 16 is provided between the connecting frame 17 and the baffle 15. When the skin is stretched to a certain extent, the fixed roller 24 is unable to move due to the resistance of the skin. Continuing to move the crossbar 6 downwards allows the fixed roller 24 to apply an elastic tension force to the skin through the second elastic element 16, thus protecting the skin.

[0026] like Figure 5 , 6As shown, in this embodiment, a one-way drive assembly is provided on the fixed roller 24. The one-way drive assembly can selectively drive the fixed roller 24 to rotate in one direction or release the one-way locking of the fixed roller 24. The one-way drive assembly includes a lifting frame 27 that can be raised and lowered and is disposed between the second slide frame 22 and the fixed roller 24. A pressing plate 29 is provided on the lifting frame 27. A ratchet 26 is provided on the fixed roller 24. A pawl 28 is hinged to the lifting frame 27 by a torsion spring and is locked onto the ratchet 26. A ratchet tooth 31 is provided that can be raised and lowered on the second slide frame 22. The end of the ratchet tooth 31 is locked onto the ratchet 26. A stop block 32 is provided on the ratchet tooth 31. A third elastic element 30 is provided between the lifting frame 27 and the second slide frame 22. A fourth elastic element 33 is provided between the lifting frame 27 and the stop block 32. A pull ring 34 is provided on the ratchet tooth 31.

[0027] The pawls 28 on each tensioning frame 19 are arranged opposite each other to ensure one-way locking of the fixing roller 24 during skin tensioning, preventing the fixing roller 24 from rolling on the skin. After skin tensioning, the fixing roller 24 can be rotated slightly by pressing the button 29 to facilitate adjustment of the tension at each fixing point, adapting to the position of fixation in different areas of the patient's chest. After drainage is completed, the ratchet 31 can be moved upward by pulling the pull ring 34, and the pawl 28 can be moved upward by controlling the stop block 32 to quickly release the lock on the ratchet 26, thereby quickly releasing the fixation of the patient's skin.

[0028] Specific usage and beneficial effects of the present invention: In use, the device fixes the bed frame 1 to the operating table. By controlling the sliding and lifting of the crossbar 6, multiple sets of fixing rollers 24 can be brought into contact with the patient's chest skin. Further control of the crossbar 6's descent causes the lifting rod 8 to slide relative to the crossbar 6. The first drive mechanism then converts the movement of the lifting rod 8 on the crossbar 6 into driving the two sets of first sliding frames 12 to slide in opposite directions, thus controlling the spacing between the two sets of tension frames 19 to tension and fix the skin in one direction. During the sliding of the first sliding frame 12 on the mounting rod 11, the second drive mechanism converts the sliding of the first sliding frame 12 into driving the two sets of second sliding frames 22 to slide in opposite directions, causing the fixing rollers 24 on each set of tension frames 19 to slide in opposite directions, thus tensioning and fixing the skin vertically. This allows for firm fixation of the chest skin within a certain range, without requiring the device to be held by hand, effectively preventing hand tremors that could reduce the skin fixation effect. Furthermore, the traction force on the skin can be adjusted by controlling the descent distance of the crossbar 6, improving the convenience of chest drainage.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications or improvements can be made to the present invention, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A closed chest drainage skin fixation device, characterized in that, Including: The bed frame (1) is provided with a liftable and sliding crossbar (6), the crossbar (6) is provided with a lifting rod (8), and the bottom of the lifting rod (8) is provided with a mounting rod (11). The first sliding frame (12) is provided in two sets and is slidably sleeved at both ends of the mounting rod (11). The bottom of the first sliding frame (12) is provided with a tensioning frame (19). Two sets of second sliding frames (22) are slidably sleeved on the tensioning frame (19). The bottom of the second sliding frame (22) is provided with a fixing roller (24). A first driving mechanism is provided on the lifting rod (8) to convert the movement of the lifting rod (8) on the crossbar (6) into driving the two sets of first sliding frames (12) to slide in opposite directions; and The second driving mechanism is disposed on the tensioning frame (19) and connected to the two sets of the second sliding frames (22) to convert the sliding of the first sliding frame (12) into driving the two sets of the second sliding frames (22) to slide in the opposite direction.

2. The closed thoracic drainage skin fixation device according to claim 1, characterized in that: The connecting bed frame (1) is provided with a mounting sleeve (5) connected by a height adjustment component. The crossbar (6) slides laterally through the mounting sleeve (5). The side wall of the mounting sleeve (5) is screwed with a set screw (7), and the end of the set screw (7) abuts against the crossbar (6).

3. The closed thoracic drainage skin fixation device according to claim 2, characterized in that, The height adjustment component includes: Guide frame (2) is mounted on the connecting bed frame (1); A lifting sleeve (4) is mounted on the mounting sleeve (5) and is slidably mounted on the guide frame (2); and The lead screw (3) is rotatably mounted on the guide frame (2) along its axis and is screwed to the lifting sleeve (4).

4. The closed chest drainage skin fixation device according to claim 1, characterized in that, The first driving mechanism includes: The drive plate (9) is slidably sleeved on the lifting rod (8) along the axis of the lifting rod (8); The drive frame (13) is provided in two sets, one end of which is hinged to the drive plate (9), and the other end is hinged to the first sliding frame (12); and The first elastic element (10) is disposed between the drive plate (9) and the crossbar (6).

5. The closed thoracic drainage skin fixation device according to claim 1, characterized in that, The second drive mechanism includes: The first gear (20) is rotatably mounted on the tensioning frame (19); Two sets of first racks (23) are arranged opposite each other and are respectively set on two sets of second slide frames (22), and both sets of first racks (23) mesh with the first gear (20); and A transmission component is disposed on the first slide frame (12) and connected to the first gear (20) to convert the sliding of the first slide frame (12) into driving the first gear (20) to rotate.

6. The closed thoracic drainage skin fixation device according to claim 5, characterized in that, The transmission assembly includes: A connecting bracket (17) is disposed on the mounting rod (11), and a second rack (18) is provided at the end of the connecting bracket (17); and The second gear (21) is disposed on the first gear (20) and meshes with the second rack (18).

7. A closed thoracic drainage skin fixation device according to claim 6, characterized in that: The mounting rod (11) is provided with a mounting post (14), and a baffle (15) is provided at the end of the mounting post (14). The end of the connecting frame (17) is slidably sleeved on the mounting post (14), and a second elastic element (16) is provided between it and the baffle (15).

8. The closed thoracic drainage skin fixation device according to claim 1, characterized in that: The fixed roller (24) is provided with a one-way drive component, which can selectively drive the fixed roller (24) to rotate in one direction or release the one-way lock of the fixed roller (24).

9. A closed thoracic drainage skin fixation device according to claim 8, characterized in that, The unidirectional drive component includes: The lifting frame (27) is vertically and vertically arranged between the second sliding frame (22) and the fixed roller (24), and the lifting frame (27) is provided with a push plate (29). A ratchet (26) is disposed on the fixed roller (24); The pawl (28) is hinged to the lifting frame (27) by a torsion spring and engaged with the ratchet (26); and A ratchet (31) is vertically mounted on the second slide frame (22), and its end is engaged with the ratchet (26). A stop (32) is provided on the ratchet (31). A third elastic element (30) is provided between the lifting frame (27) and the second slide frame (22). A fourth elastic element (33) is provided between the lifting frame (27) and the stop (32). A pull ring (34) is provided on the ratchet (31).

10. A closed thoracic drainage skin fixation device according to claim 9, characterized in that: The fixed roller (24) is fitted with a protective sleeve (25) made of flexible material.

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