Self-fixing drainage tube capable of adjusting depth of built-in tube

Abstract

The utility model relates to a self-fixing drainage tube capable of adjusting the depth of a built-in tube, which comprises a tube body and a positioning mechanism, and the positioning mechanism comprises a shell and an occlusion block; a corrugated structure is arranged on the peripheral wall of the middle of the pipe body, a plurality of suction holes are formed in the front end of the pipe body, a through hole is formed in the middle of the shell in the height direction in a penetrating mode, the pipe body linearly moves in the through hole, a first movable groove is formed in the shell in the radial direction and communicates with the through hole, and the meshing block elastically moves in the first movable groove. The front end of the occlusion block is provided with occlusion teeth matched with the corrugated structure, and the occlusion teeth are detachably connected with the corrugated structure. By adjusting the position of the occlusion block, occlusion or separation between the occlusion teeth and the corrugated structure can be achieved, so that locking or unlocking is achieved, the tube body cannot be extruded, the drainage speed of the drainage tube cannot be affected, the structure is simple, operation is easy, and depth adjustment of the drainage tube is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage tubes, and particularly relates to a drainage tube with self - fixing and adjustable internal tube depth. Background Art

[0002] In medical practice, as a common treatment means, drainage tubes are widely used in the drainage process of pleural and peritoneal effusions. However, the traditional way of fixing drainage tubes mostly uses medical adhesive tape for fixation, and this way has many defects, seriously restricting the drainage effect and the comfort of patients.

[0003] Firstly, the way of fixing with medical adhesive tape is cumbersome and not easy to adjust. Medical staff need to spend a lot of time and energy on fixation and disassembly. When the insertion depth of the drainage tube needs to be adjusted, the traditional fixation method often fails to meet the requirements and needs to be fixed again, increasing the operation difficulty and the pain of patients.

[0004] To improve this problem, a Chinese invention patent (Patent No.: 201810107044.2) proposed a pleural and peritoneal effusion drainage device with adjustable catheter depth and leak prevention. This device realizes the adjustability of the catheter depth by arranging a plurality of elastic balloons outside the drainage tube and connecting them to the balloon inflation / liquid channel. However, although this device solves the deficiencies of the traditional fixation method to a certain extent, there are still the following limitations:

[0005] Complex operation: When adjusting the catheter depth of this device, it is necessary to inject water or air through the balloon water / air injection channel, which is relatively time - consuming and laborious, increasing the workload of medical staff; in addition, as recorded in paragraph

[0015] of its specification, "because if it is desired to fix the balloon in the body, the balloon outside the body must first expand. At this time, if it is desired that the balloon placed outside the body does not expand, the ventilation channel between the internal and external balloons can be temporarily clamped, and then the air or water in the external balloon is aspirated to empty the external balloon", thus it can be seen that if the catheter depth is to be adjusted, not only water or air needs to be injected into the balloon, but also the ventilation channel between the internal and external balloons needs to be clamped, and then the air or water in the external balloon is aspirated, and the operation process is cumbersome;

[0006] Limited adjustment range: Due to the limited number of elastic balloons, the adjustable range of the catheter depth is also correspondingly limited. In practical applications, it may not be able to meet the needs of all patients.

[0007] Safety considerations: When injecting liquid or gas, if the operation is improper or the equipment fails, a series of safety problems may be caused, such as balloon rupture, air leakage, etc., thus affecting the drainage effect and the safety of patients. Content of the Utility Model

[0008] The technical problem to be solved by the present utility model is to provide a drainage tube with self - fixing and adjustable internal tube depth to overcome the deficiencies in the above - mentioned prior art.

[0009] The technical solution of the present utility model for solving the above - mentioned technical problem is as follows: A drainage tube with self - fixing and adjustable internal tube depth includes a tube body and a positioning mechanism. The positioning mechanism includes a shell and a clamping block. A corrugated structure is arranged on the peripheral wall of the middle part of the tube body, and a number of suction holes are opened at the front end of the tube body. A through - hole is arranged through the shell in the height direction of the middle part of the shell, and the tube body moves linearly in the through - hole. A first movable groove is arranged radially inside the shell, and the first movable groove is communicated with the through - hole. The clamping block elastically moves in the first movable groove, and a clamping tooth matching with the corrugated structure is arranged at the front end of the clamping block, and the clamping tooth is detachably connected with the corrugated structure.

[0010] The beneficial effect of the present utility model is that by adjusting the position of the clamping block, the clamping or disengagement between the clamping tooth and the corrugated structure can be realized, so as to achieve locking or unlocking, which will not cause extrusion to the tube body, will not affect the drainage speed of the drainage tube, has a simple structure and is easy to operate, and the depth adjustment of the drainage tube is more accurate.

[0011] On the basis of the above - mentioned technical solution, the present utility model can also be improved as follows.

[0012] Further, a second movable groove is communicated above the first movable groove, the second movable groove penetrates the upper end face of the shell, an operating rod is movably and telescopically arranged in the second movable groove, and a guiding inclined surface is arranged in the middle of the clamping block, and the operating rod abuts against the guiding inclined surface.

[0013] Further, a button groove is arranged on the upper end face of the shell, a button is movably and telescopically arranged in the button groove, and the button is connected to the top end of the operating rod.

[0014] Further, a return spring is arranged in the first movable groove, and the two ends of the return spring are respectively connected to the clamping block and the inner wall of the first movable groove.

[0015] Further, two groups of clamping blocks are arranged, and the two groups of clamping blocks are symmetrically distributed.

[0016] Further, a protective sleeve extends downward from the bottom of the positioning mechanism.

[0017] Further, an adhesive layer is arranged on the bottom wall of the positioning mechanism, and the adhesive layer is covered with a release paper. Description of the Drawings

[0018] Figure 1 is the structural schematic of the present utility model Figure I ;

[0019] Figure 2 is the structural schematic of the present utility model Figure II ;

[0020] Figure 3 This is a schematic cross-sectional structure diagram when the present utility model is locked;

[0021] Figure 4 This is a schematic cross-sectional structure diagram when the present utility model is unlocked;

[0022] Figure 5 This is a schematic internal structure diagram of the present utility model.

[0023] In the drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Tube body; 11. Corrugated structure; 12. Suction holes; 2. Positioning mechanism; 21. Housing; 211. Through hole; 212. First movable groove; 213. Second movable groove; 214. Button groove; 22. Biting block; 221. Biting teeth; 222. Guide inclined plane; 23. Operating rod; 24. Button; 25. Return spring; 26. Protective sleeve; 27. Adhesive layer. Specific embodiments

[0025] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0026] As Figures 1 to 5 shown, in Embodiment 1, a drainage tube with self-fixing and adjustable internal tube depth includes a tube body 1 and a positioning mechanism 2. The positioning mechanism 2 includes a housing 21 and a biting block 22. A corrugated structure 11 is provided on the circumferential wall of the middle part of the tube body 1, and a plurality of suction holes 12 are opened at the front end of the tube body 1. A through hole 211 is provided through the middle part of the housing 21 along its height direction, and the tube body 1 moves linearly in the through hole 211. A first movable groove 212 is provided radially inside the housing 21, and the first movable groove 212 communicates with the through hole 211. The biting block 22 elastically moves in the first movable groove 212. At the front end of the biting block 22, biting teeth 221 matching the corrugated structure 11 are provided, and the biting teeth 221 are detachably connected to the corrugated structure 11. By adjusting the position of the biting block 22, the biting or disengagement between the biting teeth 221 and the corrugated structure 11 can be achieved, so as to achieve locking or unlocking, without squeezing the tube body 1, without affecting the drainage speed of the drainage tube, with a simple structure and easy operation, and the depth adjustment of the drainage tube is more accurate.

[0027] Embodiment 2 is a further improvement based on Embodiment 1, and the specific details are as follows:

[0028] Above the first movable slot 212, there is a second movable slot 213 communicating with it. The second movable slot 213 penetrates the upper end face of the housing 21. An operating rod 23 is movably and telescopically arranged in the second movable slot 213. A guiding inclined surface 222 is arranged in the middle of the engaging block 22, and the operating rod 23 abuts against the guiding inclined surface 222. By pressing the operating rod 23, the operating rod 23 moves downward and presses the guiding inclined surface 222, so that the engaging block 22 retracts, and the engaging teeth 221 are disengaged from the corrugated structure 11 to achieve unlocking, which is convenient and fast to operate.

[0029] Embodiment 3 is a further improvement based on Embodiment 2, and the specific content is as follows:

[0030] A button slot 214 is arranged on the upper end face of the housing 21. A button 24 is movably and telescopically arranged in the button slot 214. The button 24 is connected to the top end of the operating rod 23. Through the arrangement of the button 24 and the button slot 214, it can be avoided that the operating rod 23 disengages from the second movable slot 213 and gets lost. At the same time, it is also easier to press the operating rod 23.

[0031] Embodiment 4 is a further improvement based on Embodiment 3, and the specific content is as follows:

[0032] A return spring 25 is arranged in the first movable slot 212. Two ends of the return spring 25 are respectively connected to the engaging block 22 and the inner wall of the first movable slot 212. After releasing the button 24, under the action of the return spring 25, the engaging block 22 can quickly return to its position and always engage with the corrugated structure 11.

[0033] Embodiment 5 is a further improvement based on any one of Embodiments 1 to 4, and the specific content is as follows:

[0034] Two groups of engaging blocks 22 are arranged, and the two groups of engaging blocks 22 are symmetrically distributed. It is necessary to operate the two groups of engaging blocks 22 to retract simultaneously to unlock, which improves the safety factor.

[0035] Embodiment 6 is a further improvement based on any one of Embodiments 1 to 5, and the specific content is as follows:

[0036] A protective sleeve 26 extends downward from the bottom of the positioning mechanism 2. The protective sleeve 26 can prevent the corrugated structure 11 from causing damage to the wound when inserting or removing the drainage tube.

[0037] Embodiment 7 is a further improvement based on any one of Embodiments 1 to 6, and the specific content is as follows:

[0038] An adhesive layer 27 is arranged on the bottom wall of the positioning mechanism 2, and a release paper covers the adhesive layer 27. The adhesive layer 27 can help to quickly fix the positioning mechanism 2 on the skin.

[0039] Specific implementation steps:

[0040] During the specific operation process, place the protective sleeve 26 into the wound, tear off the release paper, fix the positioning mechanism 2 on the skin through the adhesive layer 27, and then press the two buttons 24 simultaneously. At this time, the operating rod 23 presses down the guiding inclined surface 222, causing the clamping block 22 to retract. At this time, the tube body 1 of the drainage tube can be inserted into the through hole 211. When it is inserted to the preset depth, release the button 24, and the clamping teeth 221 of the clamping block 22 are engaged with the corrugated structure 11 of the tube body 1, thereby realizing locking and positioning;

[0041] When it is necessary to adjust the insertion depth of the tube body 1 of the drainage tube, just press the two buttons 24 simultaneously again, and the clamping teeth 221 of the clamping block 22 can be disengaged from the corrugated structure 11 of the tube body 1 to achieve unlocking, so that the depth of the drainage tube can be adjusted.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A drainage tube with self - fixing and adjustable built - in tube depth, characterized in that, It includes a tube body (1) and a positioning mechanism (2). The positioning mechanism (2) includes a housing (21) and a clamping block (22); a corrugated structure (11) is provided on the circumferential wall of the middle part of the tube body (1), a plurality of suction holes (12) are opened at the front end of the tube body (1), a through hole (211) is provided through the middle part of the housing (21) along its height direction, the tube body (1) moves linearly in the through hole (211), a first movable groove (212) is radially provided inside the housing (21), the first movable groove (212) communicates with the through hole (211), the clamping block (22) elastically moves in the first movable groove (212), a clamping tooth (221) matching the corrugated structure (11) is provided at the front end of the clamping block (22), and the clamping tooth (221) is detachably connected to the corrugated structure (11).

2. The drainage tube with self-fixing and adjustable built-in tube depth according to claim 1, wherein, A second movable groove (213) communicates with the upper part of the first movable groove (212), the second movable groove (213) penetrates through the upper end face of the housing (21), an operating rod (23) is movably and telescopically arranged in the second movable groove (213), a guiding inclined surface (222) is provided in the middle of the clamping block (22), and the operating rod (23) abuts against the guiding inclined surface (222).

3. The drainage tube with self - fixing and adjustable built - in tube depth according to claim 2, characterized in that, A button groove (214) is arranged on the upper end face of the housing (21), a button (24) is movably and telescopically arranged in the button groove (214), and the button (24) is connected to the top end of the operating rod (23).

4. The drainage tube with self - fixing and adjustable built - in tube depth according to claim 3, wherein, A return spring (25) is arranged in the first movable groove (212), and two ends of the return spring (25) are respectively connected to the clamping block (22) and the inner wall of the first movable groove (212).

5. A drainage tube with self - fixing and adjustable built - in tube depth according to any one of claims 1 to 4, characterized in that, Two groups of the clamping blocks (22) are provided, and the two groups of the clamping blocks (22) are symmetrically distributed.

6. The drainage tube with self-fixing and adjustable built-in tube depth according to claim 1, characterized in that, A protective sleeve (26) extends downward from the bottom of the positioning mechanism (2).

7. The drainage tube with self - fixing and adjustable internal tube depth according to claim 1, wherein, An adhesive layer (27) is arranged on the bottom wall of the positioning mechanism (2), and the adhesive layer (27) is covered with a release paper.

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