An anti-obstruction closed irrigation and drainage tube for treating deep spinal infections

Abstract

The present invention relates to the technical field of medical devices, and particularly relates to an anti-blocking closed flushing and drainage tube for treating deep spinal infections, which comprises an outer sleeve and an inner tube that can rotate relatively within the outer sleeve. The tube wall of the outer sleeve is provided with a corrugated seam, and both the upper and lower ends of the inner wall of the outer sleeve are provided with first arc-shaped protrusions. Corresponding to the positions of the two first arc-shaped protrusions on the outer wall of the inner tube, second arc-shaped protrusions are provided. A ferrule is integrally provided on the outer wall of the outer sleeve. A first bearing is embedded in the outer sleeve, and the inner tube passes through the inner shaft sleeve of the first bearing. A knob is integrally provided on the inner tube near one side of the first bearing. A second bearing is provided at one end of the inner tube far from the first bearing, and a drainage tube is sleeved on the outer shaft sleeve of the second bearing. The present invention solves the problems that the existing drainage tube is difficult to adjust after being blocked, the adjustment will increase the pain of the patient, and the adjustment may be ineffective, resulting in the failure of flushing and drainage.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an anti-blocking closed flushing and drainage tube for treating deep spinal infections. Background Art

[0002] Deep spinal infection is one of the serious human diseases, which requires thorough debridement, flushing and draining of pus and inflammatory substances. Continuous closed flushing and drainage has achieved remarkable curative effects in clinical treatment. During the treatment process, due to the blockage of the drainage tube, the flushing fluid will accumulate in the patient's body, increasing local edema, pain, and even soft tissue necrosis. The main reasons for this problem are that blood clots, dead bones, muscle soft tissues or hyperplastic soft tissues in the lesion block the drainage holes of the drainage tube. Especially after 2-4 days of flushing, the hyperplastic granulation tissue covers the drainage holes. In the past, the main methods to solve the blockage were to use thick closed thoracic drainage tubes, adjust the insertion depth and direction of the drainage tube, and rotate the drainage tube to avoid the blockage by the drainage holes. Such operations will increase the patient's pain and are very likely to be ineffective in adjustment, resulting in the failure of flushing and drainage. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an anti-blocking closed flushing and drainage tube for treating deep spinal infections.

[0004] To solve the above technical problem, the technical solution of the present invention is as follows:

[0005] An anti-blocking closed flushing and drainage tube for treating deep spinal infections, comprising an outer sleeve and an inner tube that can rotate relatively within the outer sleeve. The tube wall of the outer sleeve is provided with a corrugated seam, and both the upper and lower ends of the inner wall of the outer sleeve are provided with first arc-shaped protrusions. Corresponding to the positions of the two first arc-shaped protrusions on the outer wall of the inner tube, second arc-shaped protrusions are provided. A ferrule is integrally provided on the outer wall of the outer sleeve. A first bearing is embedded in the outer sleeve. The inner tube passes through the inner shaft sleeve of the first bearing. A knob is integrally provided on the inner tube near the first bearing. A second bearing is provided at one end of the inner tube away from the first bearing. A drainage tube is sleeved on the outer shaft sleeve of the second bearing. One end of the drainage tube away from the second bearing is connected to a drainage bag. A plurality of inwardly concave grooves are integrally formed on the outer sleeve near the ferrule. The outer sleeve is made of an elastic material, and the elastic material is medical silicone.

[0006] The outer sleeve is divided into an upper outer sleeve and a lower outer sleeve by the corrugated seam, and the corrugated seam is arranged in a wavy shape.

[0007] A first bearing seal ring is fitted in the first bearing, and a second bearing seal ring is fitted in the second bearing.

[0008] The ferrule has a horn-shaped structure.

[0009] The first bearing and the second bearing are both plastic rolling bearings. The knob surface is integrally provided with a plurality of anti-slip threads.

[0010] The outer sleeve is provided with a plurality of external drainage holes which are helpful for drainage.

[0011] The inner tube is provided with a plurality of inner drainage holes, and the apertures of the plurality of inner drainage holes are larger than the apertures of the plurality of outer drainage holes.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention cooperates with an outer sleeve by providing an inner tube that can rotate inside the outer sleeve. When blockage occurs in the outer sleeve, the inner tube can be rotated so that the second arc-shaped protrusion integrally provided on the outer wall of the inner tube can press against the first arc-shaped protrusion provided on the inside of the outer sleeve, thereby supporting the upper outer sleeve and the lower outer sleeve, thereby increasing the space of the outer sleeve and removing the necrotic tissue stuck in the inner and outer drainage holes. Thus, the problem that the existing flushing drainage tube is easily blocked can be solved. Moreover, after blockage occurs, the present invention does not need to rotate the drainage tube or repeatedly adjust the insertion depth and direction. The drainage can be restored to normal by rotating the inner tube, thereby reducing the occurrence of drainage tube blockage events, reducing exogenous infection caused by repeated adjustment of the drainage outer tube, and reducing the pain caused to the patient during treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a cross-sectional view of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the appearance of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of the outer sleeve and the wrinkle seam of the present invention;

[0017] Figure 4 It is a cross-sectional view of the second arc-shaped protrusion of the present invention when supporting the first arc-shaped protrusion; Figure 5 It is a cross-sectional view of the second arc-shaped protrusion of the present invention when it is staggered with the first arc-shaped protrusion; Figure 6 for Figure 4 A in the enlarged view;

[0018] Figure 7 It is an exploded view of the first bearing and the first bearing sealing ring of the present invention; Figure 8 is an exploded view of the second bearing and the second bearing sealing ring of the present invention; Figure 9 for Figure 2 Enlarged view of point B in . DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] Please refer to Figure 1-8 , a non-blocking closed flushing and drainage tube for treating deep spinal infections of the present invention includes an outer tube 1 and an inner tube 2 that can rotate relatively within the outer tube 1. Corrugated seams 3 are provided on the tube wall of the outer tube 1, and first arc-shaped protrusions 4 are provided at both the upper and lower ends of the inner wall of the outer tube 1. Second arc-shaped protrusions 5 are provided on the outer wall of the inner tube 2 corresponding to the positions of the two first arc-shaped protrusions 4. A ferrule 6 is integrally provided on the outer wall of the outer tube 1. A first bearing 7 is embedded in the outer tube 1. The inner tube 2 passes through the inner bushing of the first bearing 7. A knob 8 is integrally provided on the inner tube 2 near one side of the first bearing 7. A second bearing 9 is provided at one end of the inner tube 2 away from the first bearing 7. A drainage tube 10 is sleeved on the outer bushing of the second bearing 9. One end of the drainage tube 10 away from the second bearing 9 is connected to a drainage bag 11. A plurality of inwardly recessed card slots 13 are integrally formed on the outer tube 1 near the ferrule 6. In the present invention, the function of the ferrule 6 is to prevent the outer tube 1 from slipping out of the human body and also to prevent the leakage of the drainage fluid.

[0021] In order to ensure that the outer tube 1 of the present invention does not leak the drainage fluid and does not leak air during use, which may cause the failure of drainage, the outer tube 1 of the present invention is divided into an upper outer tube 101 and a lower outer tube 102 by the corrugated seam 3. The corrugated seam 3 is arranged in a wavy shape. In the present invention, the corrugated seam 3 does not penetrate the entire outer tube 1, but only about one-third of the total length of the outer tube 1. This stacking is similar to the stacking of the commonly used corrugated pipe structure. The main function is that when the second arc-shaped protrusion 5 abuts against the first arc-shaped protrusion, it can be expanded, thereby increasing the diameter of the outer tube 1. When the outer tube 1 is blocked, the blockage can be cleared by rotating the inner tube 2 to solve the problem of blockage of the outer tube 1.

[0022] In order to avoid the situation of gaps after the installation of the first bearing 7 and the second bearing 9, if there are gaps or clearances, this will affect the overall drainage effect of the present invention, resulting in slow drainage efficiency and even drainage failure. At this time, to solve this problem, a first bearing seal ring 71 is matched and provided in the first bearing 7, and a second bearing seal ring 91 is matched and provided in the second bearing 9. Through the above-mentioned first bearing seal ring 71 and second bearing seal ring 91, the problem of low efficiency or even drainage failure caused by the gaps in the bearings is well solved.

[0023] In order to prevent the outer sleeve of the present invention from falling off or drainage fluid from seeping in after being inserted and installed during surgery, a clamping sleeve 6 is integrally provided on the outer wall of the outer sleeve 1, and the clamping sleeve 6 has a trumpet-shaped structure. This arrangement can prevent the outer sleeve 1 from falling off from the human body and solve the problem of leakage at its drainage port.

[0024] In order to save costs and make the structure of the present invention light and applicable, the first bearing 7 and the second bearing 9 used are both plastic rolling bearings.

[0025] In order to enable the outer sleeve 1 of the present invention to be propped up when the second arc-shaped protrusion 5 supports the first arc-shaped protrusion, the outer sleeve 1 should be made of elastic material. In order to ensure the safety of the elastic material used, the elastic material used is medical silicone.

[0026] In order to prevent the knob 8 from slipping during operation when it is rotated, a plurality of anti-slip threads 12 are integrally provided on the surface of the knob 8 to solve the problem of slipping during operation.

[0027] like Figure 4 As shown, when the outer sleeve 1 is blocked and the drainage fluid cannot flow out, the knob 8 can be manually rotated to drive the inner tube 2 installed in the first bearing 7 to rotate, thereby driving the second arc-shaped protrusion 5 integrally provided on the outer wall of the inner tube to rotate. Since the outer sleeve 1 is provided with the pleated seam 3 and is arranged in a stacked shape (such as Figure 5 As shown), it is made of elastic material, and is medical silicone, which enables the outer sleeve 1 to repeatedly open and close under the action of the second arc-shaped protrusion 5, so that blood clots or other debris blocked in the outer sleeve 1 can be dispersed or fallen off when the outer sleeve 1 can repeatedly open and close, thereby solving the problem of drainage tube blockage.

[0028] like Figure 6 As shown, when the pleated seam 3 of the present invention is stretched, the contact area between the outer tube 1 and the drainage part can be enlarged, and then the inner tube 2 is continuously rotated to enable it to continuously open and close (i.e., when the first arc-shaped protrusion and the second arc-shaped protrusion push against each other, it is stretched; when the first arc-shaped protrusion and the second arc-shaped protrusion are staggered, it is closed, referred to as opening and closing movement), thereby achieving the purpose of the present invention.

[0029] In order to improve the drainage efficiency, several external drainage holes are provided on the outer tube 1 to facilitate drainage. In order to allow the solution or other objects that enter the outer tube 1 to be drained out of the body, several internal drainage holes are provided on the inner tube 2, and the apertures of several of the internal drainage holes are larger than the apertures of several of the external drainage holes. Setting the aperture of the internal drainage holes larger than the aperture of the external drainage holes can ensure that the solution or other objects that enter the outer tube 1 are drained out of the body.

[0030] As Figure 9 shown, in order to facilitate the fixation of the outer sleeve 1 of the present invention, a card slot 13 recessed inwardly towards the inner side of the outer sleeve 1 is provided on one side close to the ferrule 6. The card slot 13 is mainly used for, after the outer sleeve 1 is installed, using a medical suture to surround the card slot 13 and then suturing the thread to the human skin, so as to further prevent it from falling off.

[0031] When using the present invention, one end of the outer sleeve 1 is inserted into the place where drainage is needed in a way of threading from the inside to the outside. After installation, the inner tube 2 equipped with the first bearing 7 is inserted into the outer sleeve 1. Here, the first bearing seal ring 71 is already installed on the first bearing 7. After installation is completed, the wound is sutured. When suturing the wound, the ferrule 6 should be inside the human body. Then, the outer sleeve 1 is wound with a thread, and the wound thread should be in the card slot 13, and then the wound is sutured. This can not only suture the wound but also fix the outer sleeve 1. After installation is completed, the second bearing 9 is installed in the inner tube 2, and at the same time, the second bearing seal ring 91 is installed. Then, the drainage tube 10 is passed through the second bearing 9, thus completing the installation of the pipeline. When in use, when it is found that the liquid cannot be drained, the inner tube 2 installed in the first bearing 7 is driven to rotate by the knob 8, so as to drive the second arc-shaped protrusion 5 integrally arranged on the outer wall of the inner tube to rotate, so that the second arc-shaped protrusion 5 meets the first arc-shaped protrusion 4, thus forming a support. When the outer sleeve 1 is expanded when the two protrusions intersect and jack up, the diameter of the outer sleeve 1 can be increased, so that the fibers or blood clots that have grown together here can be broken, thus solving the problem of blockage of the drainage tube caused by these problems. When removing, first take out the inner tube 2 from the outer sleeve 1, cut the suture thread wound around the outer sleeve 1 with scissors, squeeze the outer sleeve 1 at the suture place by hand, and then pull out the outer sleeve 1.

[0032] Specifically, the present invention cooperates by setting an outer sleeve and an inner tube that can rotate in the outer sleeve. When a blockage occurs in the outer sleeve, the inner tube can be rotated to make the second arc-shaped protrusion integrally arranged on the outer wall of the inner tube abut against the first arc-shaped protrusion arranged on the inner part of the outer sleeve, so as to support the upper outer sleeve and the lower outer sleeve, thereby increasing the space of the outer sleeve, thus solving the problem that the existing flushing drainage tube is easily blocked. And after the blockage occurs in the present invention, there is no need to rotate the drainage tube, nor to repeatedly adjust the insertion depth and direction. Just by rotating the inner tube, the drainage can be restored to normal, which can reduce the occurrence of drainage tube blockage events, reduce exogenous infections caused by repeatedly adjusting the drainage tube, and reduce the pain brought to the patient during the treatment process.

[0033] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. An anti-blocking closed flushing and drainage tube for treating deep spinal infections, characterized in that: It includes an outer sleeve (1) and an inner tube (2) that can rotate relatively within the outer sleeve (1). Corrugated seams (3) are provided on the tube wall of the outer sleeve (1), and first arc-shaped protrusions (4) are provided at both the upper and lower ends of the inner wall of the outer sleeve (1). Second arc-shaped protrusions (5) are provided on the outer wall of the inner tube (2) corresponding to the positions of the two first arc-shaped protrusions (4). A ferrule (6) is integrally provided on the outer wall of the outer sleeve (1). A first bearing (7) is embedded in the outer sleeve (1), and the inner tube (2) passes through the inner bushing of the first bearing (7). A knob (8) is integrally provided on the inner tube (2) near the first bearing (7). A second bearing (9) is provided at one end of the inner tube (2) away from the first bearing (7). A drainage tube (10) is sleeved on the outer bushing of the second bearing (9). One end of the drainage tube (10) away from the second bearing (9) is connected to a drainage bag (11). A plurality of inwardly recessed card slots (13) are integrally formed on the outer sleeve (1) near the ferrule (6). The outer sleeve (1) is made of an elastic material, and the elastic material is medical-grade silicone.

2. The anti-blocking closed flushing and drainage tube for treating deep spinal infections according to claim 1, characterized in that: The outer sleeve (1) is divided into an upper outer sleeve (101) and a lower outer sleeve (102) by the corrugated seam (3), and the corrugated seam (3) is arranged in a wavy shape.

3. The anti-blocking closed flushing and drainage tube for treating deep spinal infections according to claim 1, characterized in that: A first bearing seal ring (71) is fitted inside the first bearing (7), and a second bearing seal ring (91) is fitted inside the second bearing (9).

4. The anti-obstruction closed flushing and drainage tube for treating deep spinal infections according to claim 1, wherein: The ferrule (6) has a trumpet-shaped structure.

5. The anti-blocking closed flushing and drainage tube for treating deep spinal infections according to claim 3, characterized in that: Both the first bearing (7) and the second bearing (9) are plastic rolling bearings.

6. The anti-blocking closed flushing and drainage tube for treating deep spinal infections according to claim 1, wherein: A number of anti-slip threads (12) are integrally provided on the surface of the knob (8).

7. The anti-blocking closed irrigation and drainage tube for treating deep spinal infections according to claim 1, characterized in that: A number of outer drainage holes for facilitating drainage are provided on the outer sleeve (1).

8. The anti-blocking closed flushing and drainage tube for treating deep spinal infections according to claim 7, characterized in that: A number of inner drainage holes are provided on the inner tube (2), and the diameters of the a number of inner drainage holes are larger than the diameters of the a number of outer drainage holes.

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