'U'-shaped drainage tube fixing device

Abstract

The invention belongs to the technical field of medical instruments, and relates to a concave-shaped drainage tube fixing device which comprises a concave-shaped base plate provided with a drainage tube rail, a drainage tube rail outlet and a hanging ring. The drainage tube track is distributed in a concave shape along the edge of the chassis; the drainage tube track outlet and the hanging ring are arranged at the edge of the chassis. The size of the base plate can be adjusted and cut according to the surrounding condition of the drainage tube, so that the fitting degree and firmness between the drainage tube and the skin are ensured. Compared with the prior art, the drainage tube can be effectively fixed, displacement and falling of the drainage tube are reduced, discomfort and pain of a patient are relieved, and the comfort level of the patient is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical appliances, and in particular relates to a "concave"-shaped drainage tube fixing device. Background Art

[0002] Drainage fixation devices are used in surgical operations and trauma treatment. After surgery or trauma, patients need drainage to remove blood, lymph and other secretions from the wound and promote wound healing. When setting the drainage tube, the position of the drainage tube needs to be properly fixed to prevent drainage tube pressure sores. The fixation of the drainage tube is a very important part of drainage therapy. If the drainage tube is loose or falls off, it will lead to problems such as poor drainage and increased risk of infection, affecting the treatment effect and the patient's recovery process. The traditional method of fixing the drainage tube is to use pins or small clips to fix the drainage tube to the patient, but this method has problems such as loose fixation, easy loosening, and strong patient discomfort. In order to solve these problems, fixation devices came into being and became an important auxiliary equipment in drainage therapy.

[0003] Patent CN221600807U provides a drainage fixture, including: a fixing patch, the corners of which are provided with a lifting edge; a fixing component, which is clamped on the front side of the fixing patch, and the fixing component includes a central block, and the four sides of the central block are clamped with a tube clamping plate, and the front side of the tube clamping plate is provided with tube clamping grooves at equal intervals. The central block and the tube clamping plate are both made of silicone material. A first clamping block is fixed to the middle of the front side of the fixing patch, and a first clamping groove is provided on the rear side of the central block. The first clamping block is clamped in the first clamping groove, and the first clamping block is made of silicone material. A third clamping block is fixed to one end of the tube clamping plate close to the central block, and a third clamping groove is provided on the four sides of the central block, and the third clamping block is clamped in the third clamping groove, and the second clamping block is made of silicone material. A third clamping block is fixed to one end of the tube clamping plate close to the central block, and a third clamping groove is provided on the four sides of the central block, and the third clamping block is clamped in the third clamping groove, and the second clamping block is made of silicone material. The inner wall of the tube clamping groove is fixed with convex patterns. However, the drainage fixer of patent CN221600807U includes multiple components, such as a fixing patch, a fixing component, a center block, a tube clamping plate, etc., and the structure is relatively complex. When the patient needs to get out of bed and move around, it is inconvenient to hang the drainage bag or drainage ball, which limits the patient's necessary rehabilitation activities. Patent CN220213669U provides a drainage tube fixing device, including a fixing pad, two fixing belts are fixed on the fixing pad, and a connecting component for fixing the fixing pad on the patient is provided on the fixing belt. A through hole communicating with each other from top to bottom is provided on the fixing pad, and a limiting ring for limiting the displacement of the drainage tube is provided at the through hole. The limiting ring is composed of a plurality of silicone sheets distributed in a circular array along the center of the through hole and independent of each other. A limiting belt for fixing the drainage tube is provided on the fixing pad, and a plurality of air holes are provided on the fixing belt. A dressing layer is provided at the bottom of the fixing pad, and an adhesive layer for connecting the two is provided between the fixing pad and the dressing layer. The connecting assembly includes a hook fixed to the movable end of the fixing belt, and a row of buckles that interlock with the hook are fixed to the movable end of the other fixing belt. However, the fixing device of patent CN220213669U mainly fixes the drainage tube by fixing the fixing belt and the connecting assembly (hook and buckle), which may not be flexible enough when the position or angle of the drainage tube needs to be adjusted. Summary of the invention

[0004] The purpose of the present invention is to provide a "concave"-shaped drainage tube fixing device in order to overcome the defects of the above-mentioned prior art, so as to effectively fix the drainage tube and reduce the displacement and falling off of the drainage tube.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] The present invention provides a "concave"-shaped drainage tube fixing device, comprising a chassis, the chassis is in a "concave" shape, and is provided with a drainage tube track, a plurality of drainage tube track outlets and a plurality of hanging rings;

[0007] The drainage pipe track is distributed in a "concave" shape along the edge of the chassis;

[0008] The drainage pipe track outlet and the hanging ring are arranged on the edge of the chassis.

[0009] Furthermore, the drainage pipe track includes a plurality of pipe clamping units distributed in a concave shape along the edge of the chassis, each pipe clamping unit is a protrusion arranged on the chassis, and the width of the protrusion is adapted to the size of the drainage pipe;

[0010] From a top view, the protrusions distributed along each side of the chassis are square in shape, and the cross section of the protrusion is a closed figure composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment;

[0011] Looking down, the protrusions distributed along the corners of the chassis are "L"-shaped, and the cross-sections at both ends of the protrusions are closed figures composed of two arcs and two straight line segments. The two cross-sectional end faces of the protrusions are connected by arc segments.

[0012] Furthermore, the drainage tube track is arranged at 1.8 cm to 2.2 cm from the edge of the chassis;

[0013] The total length of the drainage tube track is 60 cm to 90 cm;

[0014] The pipe clamping units distributed along the corners of the chassis in the drainage pipe track have a curvature radius of 1 cm to 5 cm, and a central angle of 85° to 90°.

[0015] The protrusion height of the pipe clamping unit is 10 mm to 20 mm.

[0016] Furthermore, the distribution density of the clamping tube units is 1 cm / unit to 2 cm / unit. The clamping tube units are made of silica gel.

[0017] Furthermore, the thickness of the chassis is 43 mm to 47 mm;

[0018] The total length of the chassis is 100 cm to 130 cm;

[0019] The corner of the chassis is connected to both sides by an arc, the curvature radius of the arc is 3cm to 7cm, and the central angle corresponding to the arc is 85° to 90°.

[0020] Furthermore, the chassis includes a fixing layer, an adhesive layer and a release film layer connected in sequence, a drainage tube track, a drainage tube track outlet and a hanging ring are arranged on the fixing layer, and the release film layer is torn off when in use, and the fixing layer is adhered around the wound to be drained.

[0021] Furthermore, the size of the chassis is adjusted according to the condition of the drainage wound. The chassis is made of breathable and antibacterial material, such as Solvay PPSU (polyphenylsulfone) resin, Laedana antibacterial material, etc.

[0022] Furthermore, each drainage tube track outlet is a protrusion arranged on the edge of the chassis, the width of the protrusion is adapted to the size of the drainage tube, the cross-section of the protrusion is a closed figure composed of two semicircular arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; based on the angle measured clockwise from the edge of the chassis to the drainage tube track outlet, the angle between the drainage tube track outlet and the edge of the chassis is 85°~90°.

[0023] Furthermore, the hanging ring includes a fixing sticker and a first buckle and a second buckle which are arranged thereon and are engaged with each other, and the fixing sticker is fixed on the chassis.

[0024] The present invention also provides a method for using any of the above-mentioned "concave"-shaped drainage tube fixing devices, comprising the following steps: tearing off the release film, sticking the chassis around the patient's wound to be drained through the adhesive layer, and then embedding the drainage tube led out of the wound into the drainage tube track, selecting one of the drainage tube track outlets to lead out the drainage tube according to the length of the drainage tube, or selecting one of the hanging rings to hang the drainage bag according to the length of the drainage tube.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] (1) The present invention provides a drainage tube fixing device in the shape of a Chinese character "concave", comprising a chassis, a drainage tube embeddable silicone track, a track outlet and an openable hanging ring arranged on the chassis. The chassis is in the shape of a Chinese character "concave", and an adhesive layer is arranged at the bottom thereof. The chassis can be attached to the patient's skin through the adhesive layer, and the size of the chassis can be adjusted and cut according to the situation around the drainage tube to ensure the fit and firmness between the drainage tube and the skin. The embeddable silicone track of the drainage tube is composed of a plurality of silicone clamping tube units, which are distributed in the shape of a Chinese character "concave" along the edge of the chassis. The drainage tube is embedded and fixed in the clamping tube unit according to its length, and then a suitable track outlet is selected to make the drainage tube better conform to the entire fixing device along the silicone track, so as to facilitate the patient to turn over and move in bed; when the patient gets out of bed and moves, a heavier drainage bag or drainage ball is hung on the openable hanging ring to facilitate the patient's movement. Based on the excellent fixing effect of the device on the drainage tube, the doctor can also operate more simply and easily when changing the dressing of the drainage tube. It can be adjusted and cut according to the patient's body shape and drainage site to ensure comfort. It can effectively fix the drainage tube, reduce the displacement and falling off of the drainage tube, reduce the patient's discomfort and pain, and improve the patient's comfort.

[0027] (2) The present invention provides a "concave"-shaped drainage tube fixing device, which can maintain close contact between the drainage tube and the skin, avoid the drainage tube from loosening or falling off, thereby increasing the risk of infection and reducing the risk of infection.

[0028] (3) The present invention provides a "concave"-shaped drainage tube fixing device, which has the characteristics of being simple, easy to use, and lightweight, and can be convenient for medical staff to use. The fixing device does not affect the doctor's dressing change, saving time and labor costs.

[0029] (4) The present invention provides a "concave"-shaped drainage tube fixing device, which is suitable for various types of drainage tubes and can be used for treatment of different parts of the body, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the "concave"-shaped drainage tube fixing device of the present invention;

[0031] Figure 2 It is a schematic diagram of the hanging ring structure of the "concave" shaped drainage tube fixing device of the present invention.

[0032] Description of the markings in the figure:

[0033] 1- chassis, 2- drainage tube track, 3- drainage tube track outlet, 4- hanging ring, 5- medical gauze at the wound, 6- wound to be drained, 7- fixing patch, 8- first fastener, 9- second fastener. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0035] In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "first", "second", "third", etc. are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the use of such data can be interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", "third", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects; the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the following implementation manners or examples, unless otherwise specified, functional components or structures are conventional components or conventional structures used in the art to achieve corresponding functions.

[0038] Example 1

[0039] This embodiment provides a "concave" shaped drainage tube fixing device, such as Figure 1 As shown, it includes a chassis 1, which is in a "concave" shape and is provided with a drainage tube track 2, 14 drainage tube track outlets 3 and 2 hanging rings 4; the drainage tube track 2 is distributed in a "concave" shape along the edge of the chassis 1; the drainage tube track outlets 3 and the hanging rings 4 are arranged on the edge of the chassis 1.

[0040] In this embodiment, if Figure 1As shown, the drainage tube track 2 includes 30 tube clamping units distributed in a "concave" shape along the edge of the chassis 1, each of which is a protrusion arranged on the chassis 1, and the width of the protrusion is adapted to the size of the drainage tube; when viewed from above, the protrusions distributed along the sides of the chassis 1 are square, and the cross-section of the protrusion is a closed figure composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; when viewed from above, the protrusions distributed along the corners of the chassis 1 are "L" shaped, and the cross-sections at both ends of the protrusion are closed figures composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by an arc line segment.

[0041] In this embodiment, if Figure 1 As shown, the drainage tube track 2 is set at 1.8 cm away from the edge of the chassis 1; the total length of the drainage tube track 2 is 60 cm; the tube clamping unit distributed along the corner of the chassis 1 in the drainage tube track 2 has a curvature radius of 1 cm, and the central angle corresponding to the arc is 90°; the protrusion height of the tube clamping unit is 10 mm.

[0042] In this embodiment, the distribution density of the clamping tube units is 1 cm / unit. Each clamping tube unit is made of silica gel.

[0043] In this embodiment, the thickness of the chassis 1 is 43 mm; the total length of the chassis 1 is 100 cm; the corners of the chassis 1 are connected by a quarter arc on both sides, the radius of curvature of the quarter arc is 3 cm, and the central angle of the arc is 90°.

[0044] In this embodiment, the chassis 1 includes a fixing layer, an adhesive layer and a release film layer connected in sequence. The thickness of the fixing layer is 39.5 mm, the thickness of the adhesive layer is 3 mm, and the thickness of the release film layer is 0.5 mm. A drainage tube track 2, a drainage tube track outlet 3 and a hanging ring 4 are arranged on the fixing layer. When in use, the release film layer is torn off and the fixing layer is adhered around the drainage wound.

[0045] In this embodiment, the bottom plate 1 is cut and sized according to the condition of the drainage wound. The bottom plate 1 is made of a breathable and antibacterial material: Laedana antibacterial material.

[0046] In this embodiment, if Figure 1 As shown, each drainage tube track outlet 3 is a protrusion arranged on the edge of the chassis 1, the width of the protrusion is adapted to the size of the drainage tube, the cross-section of the protrusion is a closed figure composed of two semicircular arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; according to the angle measured clockwise from the edge of the chassis 1 to the drainage tube track outlet 3, the angle between the drainage tube track outlet 3 and the edge of the chassis 1 is 90°.

[0047] In this embodiment, if Figure 2As shown, the lifting ring 4 includes a fixing sticker 7 and a first buckle 8 and a second buckle 9 which are arranged thereon and are engaged with each other, and the fixing sticker 7 is fixed on the chassis 1 .

[0048] The method of using the "concave" shaped drainage tube fixing device of this embodiment is as follows:

[0049] Tear off the release film, and stick the chassis 1 around the patient's wound 6 to be drained through the adhesive layer. Medical gauze 5 is pasted around the wound 6 to be drained, and then the drainage tube led out from the wound 6 to be drained is embedded in the drainage tube track 2. According to the length of the drainage tube, one of the drainage tube track outlets 3 is selected to lead out the drainage tube, and the drainage bag or drainage ball is placed on the bed; when the patient needs to get out of bed and move around, one of the hanging rings 4 is selected according to the length of the drainage tube to hang the drainage bag or drainage ball.

[0050] Example 2

[0051] The present embodiment provides a "concave" shaped drainage tube fixing device, including a chassis 1, which is in a "concave" shape and is provided with a drainage tube track 2, 16 drainage tube track outlets 3 and 2 hanging rings 4; the drainage tube track 2 is distributed in a "concave" shape along the edge of the chassis 1; the drainage tube track outlets 3 and the hanging rings 4 are arranged on the edge of the chassis 1.

[0052] In this embodiment, the drainage tube track 2 includes 24 tube clamping units distributed in a "concave" shape along the edge of the chassis 1, each tube clamping unit is a protrusion arranged on the chassis 1, and the width of the protrusion is adapted to the size of the drainage tube; when viewed from above, the protrusions distributed along the sides of the chassis 1 are square, and the cross-section of the protrusion is a closed figure composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; when viewed from above, the protrusions distributed along the corners of the chassis 1 are "L"-shaped, and the cross-sections at both ends of the protrusion are closed figures composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by an arc line segment.

[0053] In this embodiment, the drainage tube track 2 is set at 2 cm away from the edge of the chassis 1; the total length of the drainage tube track 2 is 78 cm; the tube clamping unit distributed along the corner of the chassis 1 in the drainage tube track 2 has a curvature radius of 3 cm, and the central angle corresponding to the arc is 90°; the protrusion height of the tube clamping unit is 15 mm.

[0054] In this embodiment, the distribution density of the clamping tube units is 1.5 cm / unit. Each clamping tube unit is made of silica gel.

[0055] In this embodiment, the thickness of the chassis 1 is 45 mm; the total length of the chassis 1 is 120 cm; the corners of the chassis 1 are connected by a quarter arc on both sides, the radius of curvature of the quarter arc is 5 cm, and the central angle of the arc is 90°.

[0056] In this embodiment, the chassis 1 includes a fixing layer, an adhesive layer and a release film layer which are connected in sequence. The thickness of the fixing layer is 41.5 mm, the thickness of the adhesive layer is 3 mm, and the thickness of the release film layer is 0.5 mm. A drainage tube track 2, a drainage tube track outlet 3 and a hanging ring 4 are arranged on the fixing layer. When in use, the release film layer is torn off and the fixing layer is adhered around the drainage wound.

[0057] In this embodiment, the bottom plate 1 is cut and sized according to the condition of the drainage wound. The bottom plate 1 is made of a breathable and antibacterial material: Laedana antibacterial material.

[0058] In this embodiment, each drainage tube track outlet 3 is a protrusion arranged on the edge of the chassis 1, the width of the protrusion is adapted to the size of the drainage tube, the cross-section of the protrusion is a closed figure composed of two semicircular arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; according to the angle measured clockwise from the edge of the chassis 1 to the drainage tube track outlet 3, the angle between the drainage tube track outlet 3 and the edge of the chassis 1 is 90°.

[0059] In this embodiment, the lifting ring 4 includes a fixing sticker 7 and a first buckle 8 and a second buckle 9 which are arranged thereon and are engaged with each other. The fixing sticker 7 is fixed on the chassis 1 .

[0060] The method of using the "concave" shaped drainage tube fixing device of this embodiment is as follows:

[0061] Tear off the release film, and stick the chassis 1 around the patient's wound 6 to be drained through the adhesive layer. Medical gauze 5 is pasted around the wound 6 to be drained, and then the drainage tube led out from the wound 6 to be drained is embedded in the drainage tube track 2. According to the length of the drainage tube, one of the drainage tube track outlets 3 is selected to lead out the drainage tube, and the drainage bag or drainage ball is placed on the bed; when the patient needs to get out of bed and move around, one of the hanging rings 4 is selected according to the length of the drainage tube to hang the drainage bag or drainage ball.

[0062] Example 3

[0063] The present embodiment provides a "concave" shaped drainage tube fixing device, including a chassis 1, which is in a "concave" shape and is provided with a drainage tube track 2, 16 drainage tube track outlets 3 and 2 hanging rings 4; the drainage tube track 2 is distributed in a "concave" shape along the edge of the chassis 1; the drainage tube track outlets 3 and the hanging rings 4 are arranged on the edge of the chassis 1.

[0064] In this embodiment, the drainage tube track 2 includes 24 tube clamping units distributed in a "concave" shape along the edge of the chassis 1, each tube clamping unit is a protrusion arranged on the chassis 1, and the width of the protrusion is adapted to the size of the drainage tube; when viewed from above, the protrusions distributed along the sides of the chassis 1 are square, and the cross-section of the protrusion is a closed figure composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; when viewed from above, the protrusions distributed along the corners of the chassis 1 are "L"-shaped, and the cross-sections at both ends of the protrusion are closed figures composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by an arc line segment.

[0065] In this embodiment, the drainage tube track 2 is set at 2.2 cm away from the edge of the chassis 1; the total length of the drainage tube track 2 is 90 cm; the tube clamping unit distributed along the corner of the chassis 1 in the drainage tube track 2 has a curvature radius of 5 cm, and the central angle corresponding to the arc is 90°; the protrusion height of the tube clamping unit is 20 mm.

[0066] In this embodiment, the distribution density of the clamping tube units is 2 cm / unit. Each clamping tube unit is made of silica gel.

[0067] In this embodiment, the thickness of the chassis 1 is 47 mm; the total length of the chassis 1 is 130 cm; the corners of the chassis 1 are connected by a quarter arc on both sides, the radius of curvature of the quarter arc is 7 cm, and the central angle of the arc is 90°.

[0068] In this embodiment, the chassis 1 includes a fixing layer, an adhesive layer and a release film layer connected in sequence. The thickness of the fixing layer is 43.5 mm, the thickness of the adhesive layer is 3 mm, and the thickness of the release film layer is 0.5 mm. A drainage tube track 2, a drainage tube track outlet 3 and a hanging ring 4 are arranged on the fixing layer. When in use, the release film layer is torn off and the fixing layer is adhered around the drainage wound.

[0069] In this embodiment, the bottom plate 1 is cut and sized according to the condition of the drainage wound. The bottom plate 1 is made of a breathable and antibacterial material: Laedana antibacterial material.

[0070] In this embodiment, each drainage tube track outlet 3 is a protrusion arranged on the edge of the chassis 1, the width of the protrusion is adapted to the size of the drainage tube, the cross-section of the protrusion is a closed figure composed of two semicircular arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; according to the angle measured clockwise from the edge of the chassis 1 to the drainage tube track outlet 3, the angle between the drainage tube track outlet 3 and the edge of the chassis 1 is 90°.

[0071] In this embodiment, the lifting ring 4 includes a fixing sticker 7 and a first buckle 8 and a second buckle 9 which are arranged thereon and are engaged with each other. The fixing sticker 7 is fixed on the chassis 1 .

[0072] The method of using the "concave" shaped drainage tube fixing device of this embodiment is as follows:

[0073] Tear off the release film, and stick the chassis 1 around the patient's wound 6 to be drained through the adhesive layer. Medical gauze 5 is pasted around the wound 6 to be drained, and then the drainage tube led out from the wound 6 to be drained is embedded in the drainage tube track 2. According to the length of the drainage tube, one of the drainage tube track outlets 3 is selected to lead out the drainage tube, and the drainage bag or drainage ball is placed on the bed; when the patient needs to get out of bed and move around, one of the hanging rings 4 is selected according to the length of the drainage tube to hang the drainage bag or drainage ball.

[0074] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A "concave"-shaped drainage tube fixing device, comprising a chassis (1), characterized in that: The chassis (1) is in the shape of a Chinese character "concave", and is provided with a drainage pipe track (2), a plurality of drainage pipe track outlets (3) and a plurality of hanging rings (4); The drainage pipe track (2) is distributed in a "concave" shape along the edge of the chassis (1); The drainage pipe track outlet (3) and the hanging ring (4) are arranged on the edge of the chassis (1).

2. A "concave" shaped drainage tube fixing device according to claim 1, characterized in that: The drainage pipe track (2) comprises a plurality of pipe clamping units distributed in a concave shape along the edge of the chassis (1); each pipe clamping unit is a protrusion arranged on the chassis (1); the width of the protrusion is adapted to the size of the drainage pipe; When viewed from above, the protrusions distributed along each side of the bottom plate (1) are square in shape, and the cross section of the protrusion is a closed figure composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment; When viewed from above, the protrusions distributed along the corners of the chassis (1) are in an "L" shape, and the cross-sections at both ends of the protrusions are closed figures composed of two arcs and two straight line segments, and the two cross-sectional end faces of the protrusions are connected by arc segments.

3. A "concave" shaped drainage tube fixing device according to claim 2, characterized in that: The drainage tube track (2) is arranged at a distance of 1.8 cm to 2.2 cm from the edge of the bottom plate (1); The total length of the drainage tube track (2) is 60 cm to 90 cm; The pipe clamping units distributed along the corners of the chassis (1) in the drainage pipe track (2) have a curvature radius of 1 cm to 5 cm at the turning point, and the central angle of the arc is 85° to 90°; The protrusion height of the pipe clamping unit is 10 mm to 20 mm.

4. The "concave" shaped drainage tube fixing device according to claim 2 is characterized in that: The distribution density of the clamping tube units is 1 cm / unit to 2 cm / unit.

5. The "concave"-shaped drainage tube fixing device according to claim 1 is characterized in that: The thickness of the chassis (1) is 43 mm to 47 mm; The total length of the chassis (1) is 100 cm to 130 cm; The corner of the chassis (1) is connected to both sides by an arc, the radius of curvature of the arc is 3 cm to 7 cm, and the central angle corresponding to the arc is 85° to 90°.

6. The "concave"-shaped drainage tube fixing device according to claim 1 is characterized in that: The chassis (1) comprises a fixing layer, an adhesive layer and a release film layer which are connected in sequence. A drainage pipe track (2), a drainage pipe track outlet (3) and a hanging ring (4) are arranged on the fixed layer. When in use, tear off the release film layer and stick the fixing layer around the wound to be drained.

7. The "concave" shaped drainage tube fixing device according to claim 1 is characterized in that: Each drainage tube track outlet (3) is a protrusion arranged on the edge of the chassis (1), the width of the protrusion is adapted to the size of the drainage tube, the cross section of the protrusion is a closed figure composed of two semicircular arcs and two straight line segments, and the two cross-sectional end faces of the protrusion are connected by a straight line segment.

8. The "concave"-shaped drainage tube fixing device according to claim 7 is characterized in that: According to the angle meter measured clockwise from the edge of the chassis (1) to the drainage tube track outlet (3), the included angle between the drainage tube track outlet (3) and the edge of the chassis (1) is 85° to 90°.

9. The "concave"-shaped drainage tube fixing device according to claim 1, characterized in that: The hanging ring (4) comprises a fixing sticker (7) and a first buckle (8) and a second buckle (9) which are arranged on the fixing sticker and are connected to each other. The fixing sticker (7) is fixed on the chassis (1).

10. A method for using the "concave" shaped drainage tube fixing device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: tearing off the release film, sticking the base plate (1) around the wound to be drained of the patient via the adhesive layer, then embedding the drainage tube led out of the wound into the drainage tube track (2), and selecting one of the drainage tube track outlets (3) to lead out the drainage tube according to the length of the drainage tube, or selecting one of the hanging rings (4) to hang the drainage bag according to the length of the drainage tube.

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