Anti-blocking drainage tube

Abstract

The present invention provides an anti-blocking drainage tube, comprising a drainage tube body, an anti-blocking assembly, a crushing piece, a sliding assembly, a pull rope and a driving assembly; the anti-blocking assembly comprises an inner tube, a connecting block and an outer tube; the inner tube is connected to the outer tube through the connecting block, the outer tube is slidably arranged in the drainage tube body, and a plurality of pull ropes are provided to drive the outer tube to slide; a sliding groove is provided on the surface of the connecting block close to the drainage tube body, and a long strip hole is provided on the top surface of the connecting block; a plurality of connecting blocks are provided and staggered on both sides of the outer tube; the crushing piece is slidably connected in the sliding groove, and a plurality of crushing pieces are provided and correspond one to one with the connecting block; the sliding assembly comprises a slider and a sliding connecting rod; the slider is slidably arranged on the top surface of the connecting block and is connected to the crushing piece through the long strip hole through the sliding connecting rod; the sliding assembly corresponds one to one with the connecting block; the driving assembly is provided on the inner tube and can drive the slider to slide back and forth. The above-mentioned anti-blocking drainage tube enables the crushing pieces on both sides to cut and tear the blockage at the bend to clear the blockage.

Description

Technical Field

[0001] The present invention relates to the technical field of drainage tubes, and in particular to an anti-blocking drainage tube. Background Art

[0002] Drainage tubes are medical devices used for clinical surgical drainage, directing pus, blood, and fluids that accumulate between tissues or within body cavities to the outside of the body, preventing postoperative infection and promoting wound healing. Numerous types of surgical drainage tubes are used clinically, including those for urinary catheterization and wound treatment. They are also used in the chest, brain, gastrointestinal, and biliary tracts. Surgical drainage aims to direct pus, blood, and fluids that accumulate between tissues or within body cavities to the outside of the body, preventing postoperative infection and impairing wound healing. During use, catheters can often become clogged by blood clots, pus, and other fluids, leading to poor drainage and infection. In these cases, the catheters need to be unblocked. Currently, a common method involves placing a desilting rod with a brush or shredder inside the catheter. However, drainage tubes inevitably bend during use, and clogged material can easily accumulate at these bends. Desilting rods are difficult to remove at these bends, and forcibly turning or pulling the rod can easily damage the drainage tube. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention proposes an anti-blocking drainage tube to solve the problem that the bent drainage tube mentioned in the background art is difficult to clear blockages at its bend.

[0004] In order to solve this technical problem, the technical solution adopted by the present invention is:

[0005] An anti-blocking drainage tube, characterized by comprising a drainage tube body, an anti-blocking component, a crushing piece, a sliding component, a pull rope and a driving component;

[0006] An anti-blocking component is slidably provided in the drainage tube body;

[0007] The anti-blocking assembly includes an inner tube, a connecting block and an outer tube; the inner tube is connected to the outer tube via the connecting block, the outer wall of the outer tube is slidably arranged in the drainage tube body, one end of the pull rope is fixed to the anti-blocking assembly, and the other end extends in the drainage tube body and passes through the drainage tube body; the connecting block is provided with a sliding groove on the surface close to the drainage tube body, the sliding groove is connected to the space in the drainage tube, and the top surface of the connecting block is provided with a long strip hole; there are multiple connecting blocks, which are staggered on both sides of the outer tube;

[0008] The crushing piece is slidably connected to the sliding groove and can slide into the drainage tube body; there are multiple crushing pieces, and they correspond one to one with the connecting blocks;

[0009] The sliding assembly includes a slider and a sliding connecting rod; the slider is slidably arranged on the top surface of the connecting block and is connected to the crushing piece through the sliding connecting rod passing through the elongated hole; the sliding assembly is provided in multiple groups, and corresponds to the connecting blocks one by one;

[0010] The driving assembly is arranged on the inner tube and can drive the slider to slide back and forth.

[0011] As can be seen from the above scheme, the anti-blocking assembly is located inside the drainage tube body near its puncture end. A pull cord can be used to slide the anti-blocking assembly to the bend. When a blockage occurs at the bend, the drive assembly is activated to push each slider, causing the shredders to repeatedly extend and retract within the drainage tube body, thereby shredding the blockage and clearing the previously blocked passage. It should be understood that the drive assembly can be remotely activated, and that the drive assembly corresponds to each slider. Furthermore, each shredder slides relatively independently, allowing targeted cutting of specific areas without having to slide all the shredders.

[0012] Furthermore, a push bar is provided; two push bars are provided, each connecting the sliders on the same side. Pushing the push bar can drive the sliders on the same side to slide together. By setting the push bar, a single push can drive all the sliders on the same side to slide, and then drive all the crushing pieces on the same side to slide and cut. In other words, by setting the push bar, only two sets of drive components are required to drive the sliders on both sides to move.

[0013] Furthermore, the drive assembly includes a fixed plate, a rotating motor, a motor connecting rod and a pushing connecting rod; the fixed plate is fixed on the outer tube, the rotating motor is arranged on the fixed plate, one end of the motor connecting rod is connected to the rotating shaft of the rotating motor, the other end of the motor connecting rod is hinged to the pushing connecting rod, and the end of the pushing connecting rod away from the motor connecting rod is hinged to the pushing bar. The motor connecting rod is driven by the rotating motor to make a circular motion, and one end of the pushing connecting rod is hinged to the motor connecting rod, and the other end is hinged to the pushing bar, and the pushing bar is restricted by the slider to only make a linear reciprocating motion. The continuous operation of the rotating motor can drive the linear reciprocating motion of the pushing bar, and then drive the crushing piece to slide back and forth inside and outside the drainage tube body. By setting up this drive assembly, the crushing piece can continue to slide periodically, thereby achieving periodic dredging of the bend of the drainage tube body, further reducing the possibility of a large amount of blockages accumulating at the bend in advance.

[0014] Furthermore, a transmission mechanism is provided, comprising a push rack, a gear assembly, and a transmission rack assembly; the push rack is connected to one of the push bars, the push rack being disposed opposite the transmission rack assembly; the transmission rack assembly being slidably disposed on the outer wall of the inner tube and being connected to the other push bar; the gear assembly being rotatably disposed on the connecting block adjacent to the push rack, the gear assembly being simultaneously engaged with both the push rack and the transmission rack assembly. The push bar provided with the push rack is slidable, so that the push rack drives the gear assembly to rotate, and the rotation of the gear assembly further drives the transmission rack assembly to slide in the opposite direction to the push rack, while the transmission push rack is connected to the other push bar, thereby driving one push bar to slide, thereby driving the other push bar to slide in the opposite direction, and the push bar can drive a slider connected to the crushing sheet to slide, that is, by sliding the push bar on one side, the crushing sheets on both sides can be simultaneously inserted into the drainage tube body, or simultaneously slid out of the drainage tube body, thereby achieving cutting of the same area in two directions. In other words, by providing a set of drive assemblies, the sliders on both sides can be driven to slide.

[0015] Furthermore, the transmission rack assembly includes a connecting plate and a transmission rack body; the connecting plate is fixed to the outer wall of the inner tube, and the transmission rack body is slidably connected to the connecting plate and faces the push rack. The transmission rack body is connected to the push rack away from the push rack and meshes with the gear assembly. By separating the transmission rack assembly into the connecting plate and the transmission rack body, the transmission rack body can slide independently, reducing the force required by the push rack to drive the transmission rack assembly to slide, making pushing the push rack more labor-saving.

[0016] Furthermore, the gear assembly includes a connecting rod and a rotating gear; the connecting rod is fixed on the connecting block close to the pushing rack, the rotating gear is rotatably provided on the connecting rod, and the rotating gear is engaged with the pushing rack and the transmission rack body at the same time.

[0017] Furthermore, two blocking covers are provided, one on the top and one on the bottom of the outer tube, to block the gap between the outer tube and the inner tube. The blocking covers prevent obstructions from entering between the outer and inner tubes, potentially causing a blockage. It is important to note that the blocking cover on the top of the outer tube has an inclined surface facing inward toward the inner tube, allowing obstructions to slide easily into the inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1A schematic diagram of an anti-blocking drainage tube provided by one embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the device shown without the drainage tube body and the blocking cover;

[0021] Figure 3 for Figure 2 A schematic diagram of the sliding assembly shown;

[0022] Figure 4 for Figure 2 A schematic diagram of the gear assembly is shown;

[0023] Figure 5 for Figure 1 Schematic diagram of the cover shown.

[0024] Reference numerals:

[0025] 1- drainage tube body;

[0026] 2-anti-blocking component; 21-inner tube; 22-connecting block; 23-outer tube;

[0027] 3- crushed tablets;

[0028] 4-sliding assembly; 41-sliding block; 42-sliding connecting rod;

[0029] 5- Push bar;

[0030] 6-driving assembly; 61-fixed plate; 62-rotating motor; 63-motor connecting rod; 64-pushing connecting rod;

[0031] 7-transmission mechanism; 71-push rack; 72-gear assembly; 721-connecting rod; 722-rotating gear; 73-transmission rack assembly; 731-connecting plate; 732-transmission rack body;

[0032] 8-pull rope;

[0033] 9-Block cover. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0035] Please also refer to Figure 1-Figure 4 The present invention provides an anti-blocking drainage tube, including a drainage tube body 1, an anti-blocking component 2, a crushing piece 3, a sliding component 4, a pull rope 8 and a driving component 6.

[0036] An anti-blocking component 2 is slidably provided in the drainage tube body 1 .

[0037] The anti-blocking component 2 includes an inner tube 21, a connecting block 22 and an outer tube 23; the inner tube 21 is connected to the outer tube 23 through the connecting block 22, and the outer wall of the outer tube 23 is slidably arranged in the drainage tube body 1. One end of the pull rope 8 is fixed on the anti-blocking component 2, and the other end extends in the drainage tube body 1 and passes through the drainage tube body 1. It should also be understood that the anti-blocking component 2 is arranged in the drainage tube body 1 near the puncture point, and the drainage fluid is difficult to push the anti-blocking component 2 to move. Only by pulling the pull rope 8 can the anti-blocking component 2 be driven. The component 2 moves, the pull rope 8 passes through the end of the drainage tube body 1 away from the puncture point, and continues to pass through the drainage bag or drainage bottle connected to the drainage tube body and is placed outside. The anti-blocking component 2 is driven to move by pulling the pull rope 8, and the place where the pull rope passes through the drainage bag or drainage bottle is away from the bottom surface; the surface of the connecting block 22 close to the drainage tube body 1 is provided with a sliding groove, which is connected to the space inside the drainage tube, and the top surface of the connecting block 22 is provided with a long strip hole; there are multiple connecting blocks 22, which are staggered on both sides of the outer tube 23. It should be understood that the drainage tube body 1 is provided with multiple through holes at the connecting block 22, which allow the crushed pieces 3 to pass through. At the same time, except for these through holes, the drainage tube body 1 in the inner tube 21 is tightly attached to the inner wall of the inner tube 21, making it difficult for the drainage fluid in the drainage tube to flow out of the inner tube 21. It should also be noted that the staggered arrangement of multiple connecting blocks 22 on both sides of the outer tube 23 refers to the multiple connecting blocks 22 being divided into two groups, one group being located on opposite sides of the outer tube 23. Furthermore, the connecting blocks 22 within each group are spaced apart from one another, and the extension direction of the connecting blocks 22 in one group points between two adjacent connecting blocks 22 in the other group. It should also be understood that the connecting blocks 22 can be arranged to conform to the inner wall of the inner tube 21, or they can be arranged to a uniform length so that the connecting blocks 22 are also positioned within the inner tube 21. In this embodiment, the connecting blocks 22 are arranged to conform to the inner wall of the inner tube 21, so that the side of the connecting blocks 22 closest to the inner tube 21 has the same shape as the inner wall of the inner tube 21 and conforms to the inner wall of the inner tube 21.

[0038] The shredding pieces 3 are slidably connected within the sliding grooves and can slide into the drainage tube body 1. Multiple shredding pieces 3 are provided, corresponding one-to-one with the connecting blocks 22. It should be understood that the bottom surface of the shredding pieces 3 is flat, while the top surface and the surface facing the drainage tube body 1 are sharp-angled. When the shredding pieces 3 are slid out and placed into the drainage tube body 1, the sharp corners of their top surfaces can cut through falling blockages, while the sharp corners facing the drainage tube body 1 can penetrate and cut through the blockage. It should also be understood that the shredding pieces 3 are long enough so that after both shredding pieces 3 slide into the drainage tube body 1, the shredding pieces 3 on one side can fit into the gap between the shredding pieces 3 on the other side. At the same time, this gap can preferably be sufficiently small to effectively tear through the blockage. During use, the shredding pieces 3 on both sides slide toward each other, cutting the blockage with their sharp corners. After extending out, the blockage is rubbed into fine particles between the two adjacent shredding pieces 3, thereby completing the unblocking process.

[0039] The sliding assembly 4 includes a slider 41 and a sliding link 42; the slider 41 is slidably arranged on the top surface of the connecting block 22, and is connected to the crushing piece 3 through the long hole through the sliding link 42; the sliding assembly 4 is provided with multiple groups, and corresponds to the connecting block 22 one by one.

[0040] The drive assembly 6 is provided on the inner tube 21 and can drive the slider 41 to slide back and forth. It should be understood that in this solution, a plurality of drive assemblies 6 are provided and correspond one to one with the slider 41, and the drive assembly can be remotely started by remote control means.

[0041] The anti-blocking component is arranged in the drainage tube body near its puncture end. The anti-blocking component can be slid to the bend through the pull rope 8. When a blockage occurs at the bend, the driving component 6 is started to push each slider 41 to make the crushing piece 3 repeatedly extend and retract in the drainage tube body 1, so as to achieve the purpose of chopping the blockage and unblocking the originally blocked channel. Moreover, the sliding of each crushing piece 3 is relatively independent, and a specific area can be cut in a targeted manner without sliding the entire crushing piece 3, which can achieve more labor-saving specific cutting.

[0042] In other embodiments, a push bar 5 is further provided; two push bars 5 are provided, each connecting the sliders 41 on the same side. Pushing a push bar can cause the sliders 41 on the same side to slide together. By providing the push bar 5, a single push can cause all the sliders 41 on the same side to slide, thereby causing all the crushing pieces 3 on the same side to slide and perform cutting. In other words, by providing the push bars, only two sets of drive assemblies are required to drive the sliders on both sides.

[0043] In other embodiments, the drive assembly 6 includes a fixed plate 61, a rotating motor 62, a motor connecting rod 63, and a push connecting rod 64; the fixed plate 61 is fixed to the outer tube 23, the rotating motor 62 is arranged on the fixed plate 61, one end of the motor connecting rod 63 is connected to the rotating shaft of the rotating motor 62, the other end of the motor connecting rod 63 is hinged to the push connecting rod 64, and the end of the push connecting rod 64 away from the motor connecting rod 63 is hinged to the push bar 5. The rotating motor 62 drives the motor connecting rod 63 to perform circular motion, and the push connecting rod 64 is hinged to the motor connecting rod 63 at one end and hinged to the push bar 5 at the other end. Since the push bar 5 is restricted by the slider 41 to perform only linear reciprocating motion, the continuous operation of the rotating motor 62 can drive the linear reciprocating motion of the push bar 5, thereby driving the crushing piece 3 to slide back and forth inside and outside the drainage tube body 1. Here, the combination of the motor connecting rod 63, the push connecting rod 64, and the push bar 5 can be understood as a crank slider 41 mechanism. By providing this drive assembly 6, the crushing blade 3 can continuously and periodically slide, thereby periodically clearing the bend of the drainage tube body 1, further reducing the possibility of large amounts of blockage accumulating at the bend. It should also be noted that both the push rod 64 and the motor rod 63 are higher than the top surface of the outer tube 23, and the motor rod 63 is capable of circular motion. It should be understood that the rotary motor 62 can be remotely activated by remote control.

[0044] In other schemes, a transmission mechanism 7 is also provided, which includes a pushing rack 71, a gear assembly 72 and a transmission rack assembly 73; the pushing rack 71 is connected to a pushing bar 5, and the pushing rack 71 and the transmission rack assembly 73 are arranged opposite to each other; the transmission rack assembly 73 is slidably provided on the outer wall of the inner tube 21 and is connected to another pushing bar 5; the gear assembly 72 is rotatably provided on the connecting block 22 close to the pushing rack 71, and the gear assembly 72 is engaged with the pushing rack 71 and the transmission rack assembly 73 at the same time. The push bar 5 with the push rack 71 is slidably provided, so that the push rack 71 drives the gear assembly 72 to rotate. The rotation of the gear assembly 72 further drives the transmission rack assembly 73 to slide in the opposite direction of the push rack 71. The transmission push rack 71 is connected to another push bar 5, so that pushing one push bar 5 to slide can drive the other push bar 5 to slide in the opposite direction. The push bar 5 can drive the slider 41 connected to the crushing piece 3 to slide. That is, by sliding the push bar 5 on one side, the crushing pieces 3 on both sides can be inserted into the drainage tube body 1 at the same time, or slide out of the drainage tube body 1 at the same time, achieving cutting of the same area in two directions. It should be noted that the gear assembly 72 does not undergo relative displacement when it is rotated by the push rack 71. In other words, by providing a set of drive assemblies, the sliders on both sides can be driven to slide.

[0045] In other embodiments, the transmission rack assembly 73 includes a connecting plate 731 and a transmission rack body 732; the connecting plate 731 is fixed to the outer wall of the inner tube 21, and the transmission rack body 732 is slidably connected to the connecting plate 731 and faces the push rack 71. The transmission rack body 732 is connected to the push bar 5 away from the push rack 71 and meshes with the gear assembly 72. By separating the transmission rack assembly 73 into the connecting plate 731 and the transmission rack body 732, the transmission rack body 732 can slide independently, reducing the force required by the push rack 71 to drive the transmission rack assembly 73 to slide, making pushing the push rack 71 more labor-saving.

[0046] Furthermore, the gear assembly 72 includes a connecting rod 721 and a rotating gear 722; the connecting rod 721 is fixed on the connecting block 22 close to the pushing rack 71, and the rotating gear 722 is rotatably provided on the connecting rod 721, and the rotating gear 722 is engaged with the pushing rack 71 and the transmission rack body 732 at the same time.

[0047] In other embodiments, two shielding covers 9 are provided, one on the top and one on the bottom of the outer tube 23, to block the gap between the outer tube 23 and the inner tube 21. The shielding covers 9 prevent obstructions from entering between the outer tube 23 and the inner tube 21, potentially causing a blockage. It is important to note that the shielding covers 9 on the top of the outer tube 23 have an inclined surface facing inward toward the inner tube 21, allowing obstructions to slide easily into the inner tube 21.

[0048] The above-mentioned anti-blocking drainage tube is provided with an anti-blocking component and a related structure of a crushing piece at the bend of the drainage tube body. By sliding the crushing piece back and forth, the crushing pieces on both sides cut and tear the blockage at the bend, thereby achieving the effect of clearing the blockage at the bend of the drainage tube.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A blockage-proof drainage tube, characterized in that: It includes a drainage tube body, an anti-blocking component, a crushing piece, a sliding component, a pull rope and a driving component; An anti-blocking component is slidably provided in the drainage tube body; The anti-blocking assembly includes an inner tube, a connecting block and an outer tube; the inner tube is connected to the outer tube via the connecting block, the outer wall of the outer tube is slidably arranged in the drainage tube body, one end of the pull rope is fixed to the anti-blocking assembly, and the other end extends in the drainage tube body and passes through the drainage tube body; the connecting block is provided with a sliding groove on the surface close to the drainage tube body, the sliding groove is connected to the space in the drainage tube, and the top surface of the connecting block is provided with a long strip hole; there are multiple connecting blocks, which are staggered on both sides of the outer tube; The crushing piece is slidably connected to the sliding groove and can slide into the drainage tube body; there are multiple crushing pieces, and they correspond one to one with the connecting blocks; The sliding assembly includes a slider and a sliding connecting rod; the slider is slidably arranged on the top surface of the connecting block and is connected to the crushing piece through the sliding connecting rod passing through the elongated hole; the sliding assembly is provided in multiple groups, and corresponds to the connecting blocks one by one; The driving assembly is arranged on the inner tube and can drive the slider to slide back and forth; A push bar is also provided; there are two push bars, which respectively connect the sliders on the same side. Pushing the push bar can drive the sliders on the same side to slide together.

2. The anti-blocking drainage tube according to claim 1, characterized in that: The driving assembly includes a fixed plate, a rotating motor, a motor connecting rod and a pushing connecting rod; the fixed plate is fixed on the inner tube, the rotating motor is arranged on the fixed plate, one end of the motor connecting rod is connected to the rotating shaft of the rotating motor, the other end of the motor connecting rod is hinged to the pushing connecting rod, and the end of the pushing connecting rod away from the motor connecting rod is hinged to the pushing bar.

3. The anti-blocking drainage tube according to claim 1 or 2, characterized in that: A transmission mechanism is also provided, which includes a pushing rack, a gear assembly and a transmission rack assembly; the pushing rack is connected to one of the pushing bars, and the pushing rack and the transmission rack assembly are arranged opposite to each other; the transmission rack assembly is slidably provided on the outer wall of the inner tube and is connected to another pushing bar; the gear assembly is rotatably provided on the connecting block close to the pushing rack, and the gear assembly is engaged with the pushing rack and the transmission rack assembly at the same time.

4. The anti-blocking drainage tube according to claim 3, characterized in that: The transmission rack assembly includes a connecting plate and a transmission rack body; the connecting plate is fixed to the outer wall of the inner tube, the transmission rack body is slidably connected to the connecting plate and is opposite to the pushing rack, the transmission rack body is connected to the pushing bar away from the pushing rack and is engaged with the gear assembly.

5. The anti-blocking drainage tube according to claim 4, characterized in that: The gear assembly includes a connecting rod and a rotating gear; the connecting rod is fixed on the connecting block close to the pushing rack, the rotating gear is rotatably provided on the connecting rod, and the rotating gear is engaged with the pushing rack and the transmission rack body at the same time.

6. The anti-blocking drainage tube according to claim 5, characterized in that: A blocking cover is also provided. Two blocking covers are provided and are respectively arranged on the top surface and the bottom surface of the outer tube to block the gap between the outer tube and the inner tube.

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