Catheter fixing device

Abstract

The utility model relates to the technical field of auxiliary tools, in particular to a catheter fixing device. The catheter attaching device comprises an attaching shell and bandages, the bandages are fixed to the two ends of the attaching shell, hook-and-loop fasteners are arranged at the ends, away from the attaching shell, of the bandages, an auxiliary structure is assembled on the inner side of the attaching shell and used for fixing a catheter, the auxiliary structure comprises a fixing assembly and a transmission assembly, and a guide top groove is formed in the top of the attaching shell; a fixing assembly is assembled on the inner side of the guide top groove, a transmission assembly is assembled on the inner side of the fixing assembly, and the fixing assembly comprises a carrying supporting rod, a fixing supporting rod and an arc-shaped plate. By means of the structural design of the auxiliary mechanism, a catheter can be conveniently fixed through the device, meanwhile, the device can be fixed to the body of a patient through the bandage and is not prone to falling off, an application at the puncture position of the catheter and the skin can be prevented from being lifted up when the catheter is accidentally touched, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tools, in particular to a catheter fixing device. Background Art

[0002] In recent years, the prevalence of kidney disease has shown a clear upward trend. Among them, patients with severe kidney disease need hemodialysis to purify impurities in the blood. Central venous catheterization is the most widely used temporary hemodialysis access in clinical practice, which has saved the lives of countless patients.

[0003] For example, a fixing device for a central venous catheter with a publication (announcement) number of CN210904564U includes a main catheter, medical gauze, a connector and a lug, wherein the medical gauze is placed at the bottom of the main catheter, a first binding band, a second binding band and a third binding band are bonded to the medical gauze by medical adhesive, a first medical tape is fixedly installed on the first binding band by adhesive, and both ends of the first medical tape are fixedly installed on the medical gauze by adhesive;

[0004] In summary, it can be seen that the following technical problems exist in the prior art: Although the above-mentioned prior art can fix the catheter during use, the medical tape can only be attached to the skin surface. When the skin sweats, especially in summer, the medical tape is easy to fall off, and the catheter slips, which in turn causes catheter infection. There is room for improvement. For this reason, we propose a catheter fixing device. Utility Model Content

[0005] The purpose of the utility model is to provide a catheter fixing device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A catheter fixing device comprises an attachment shell and a strap, wherein straps are fixed to both ends of the attachment shell, and Velcro is provided on one end of the strap away from the attachment shell, an auxiliary structure is assembled on the inner side of the attachment shell, and the auxiliary structure is used to fix the catheter, and the auxiliary structure comprises a fixing component and a transmission component, a guide top groove is opened on the top of the attachment shell, a fixing component is assembled on the inner side of the guide top groove, and a transmission component is assembled on the inner side of the fixing component.

[0008] Preferably, the fixing assembly includes a carrying support rod, a fixed support rod and an arc plate, the carrying support rod is slidably connected to the inner side of the guide top groove, a fixed support rod is fixed to one end of the top of the attachment shell and at a position deviating from the guide top groove, and an arc plate is fixed to the side where the fixed support rod and the carrying support rod are close to each other.

[0009] Preferably, the transmission assembly includes a movable shell, a fixed rack, a rectangular matching groove, an elastic metal rod and an elastic metal arc sheet. The movable shell is assembled on one side of the interior of the attached shell, and a fixed rack is fixed on the other side of the interior of the attached shell. A rectangular matching groove is opened on one side of the movable shell, an elastic metal rod is fixed on one end of the inner side of the rectangular matching groove, and an elastic metal arc sheet is fixed on one end of the elastic metal rod, and the elastic metal arc sheet is assembled and connected with the fixed rack.

[0010] Preferably, a plurality of matching tooth grooves are evenly distributed on one side of the fixed rack, and the matching tooth grooves are slidably connected to the elastic metal arc sheet.

[0011] Preferably, two pin seats are fixed on the top and bottom of the movable shell, and the inner sides of the pin seats are rotatably connected to auxiliary rollers through pins. The top and bottom of the inner side of the attachment shell are provided with two guide rail grooves corresponding to the positions of the auxiliary rollers, and the auxiliary rollers are in close contact with the inner sides of the guide rail grooves.

[0012] Preferably, a toggle block is fixed to one end of the movable shell away from the fixed rack, and a side groove corresponding to the position of the toggle block is opened on one side of the attached shell, and the side groove is slidably connected to the toggle block.

[0013] Preferably, the inner sides of the arc-shaped plates are bonded with medical double-sided tape.

[0014] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0015] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0016] The utility model makes it easy to fix the catheter through the structural design of the auxiliary mechanism, and can fix the device on the patient through the strap, which is not easy to fall off, can prevent the dressing at the puncture point between the catheter and the skin from being lifted up when the catheter is accidentally touched, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cutaway structure of the attachment shell of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-section structure of the attachment shell and the movable shell of the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the connection structure of the arc plate and the medical double-sided adhesive.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. Attachment shell; 2. Binding strap; 3. Guide top groove; 4. Carrying support rod; 5. Fixed support rod; 6. Arc plate; 7. Moving shell; 8. Fixed rack; 9. Rectangular matching groove; 10. Elastic metal rod; 11. Elastic metal arc sheet; 12. Matching tooth groove; 13. Pin seat; 14. Auxiliary roller; 15. Guide groove; 16. Toggle block; 17. Side groove; 18. Medical double-sided tape. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] Example 1

[0026] Reference Figure 1-4 A catheter fixing device comprises an attachment shell 1 and a strap 2, both ends of the attachment shell 1 are fixed with straps 2, and one end of the strap 2 away from the attachment shell 1 is provided with Velcro, an auxiliary structure is assembled on the inner side of the attachment shell 1, and the auxiliary structure is used to fix the catheter. The auxiliary structure comprises a fixing component and a transmission component, a guide top groove 3 is opened on the top of the attachment shell 1, a fixing component is assembled on the inner side of the guide top groove 3, and a transmission component is assembled on the inner side of the fixing component, and an arc-shaped concave surface is arranged on the bottom of the attachment shell 1 to facilitate fitting with the patient's body.

[0027] The fixing assembly includes a carrying support rod 4, a fixed support rod 5 and an arc plate 6. The carrying support rod 4 is slidably connected to the inner side of the guide top groove 3. The fixed support rod 5 is fixed to one end of the top of the shell 1 and deviates from the guide top groove 3. The arc plate 6 is fixed on the side where the fixed support rod 5 and the carrying support rod 4 are close to each other. The inner side of the arc plate 6 is a circular arc concave surface, which is convenient for adapting to the catheter and can prevent excessive extrusion while fixing the catheter.

[0028] The transmission assembly includes a moving shell 7, a fixed rack 8, a rectangular matching groove 9, an elastic metal rod 10 and an elastic metal arc sheet 11. The moving shell 7 is assembled on one side of the attached shell 1, and the fixed rack 8 is fixed on the other side of the attached shell 1. A rectangular matching groove 9 is opened on one side of the moving shell 7, and an elastic metal rod 10 is fixed on one end of the inner side of the rectangular matching groove 9. An elastic metal arc sheet 11 is fixed on one end of the elastic metal rod 10. The elastic metal arc sheet 11 is assembled and connected with the fixed rack 8. The elastic metal arc sheet 11 and the elastic metal rod 10 are both made of elastic materials, such as iron alloy, spring metal sheet, elastic plastic, etc., which belong to the existing mature technology and will not be repeated here.

[0029] One side of the fixed rack 8 is evenly distributed with a plurality of mating tooth grooves 12, and the mating tooth grooves 12 are slidably connected with the elastic metal arc sheet 11. It can be understood that the inner side of the mating tooth grooves 12 is matched with the outer shape of the elastic metal arc sheet 11, and the outer side of the elastic metal arc sheet 11 is in contact with the inner side of the mating tooth grooves 12. When the elastic metal arc sheet 11 is stationary, the displacement limit is formed with the movable shell 7 through the cooperation with the mating tooth grooves 12.

[0030] Two pin seats 13 are fixed on the top and bottom of the movable shell 7, and the inner sides of the pin seats 13 are rotatably connected with auxiliary rollers 14 through pins. Two guide grooves 15 corresponding to the positions of the auxiliary rollers 14 are provided on the top and bottom of the inner side of the attachment shell 1. The auxiliary rollers 14 are in close contact with the inner sides of the guide grooves 15. When the movable shell 7 moves, it can drive the pin seats 13 to move, and then the auxiliary rollers 14 roll along the inner sides of the guide grooves 15, providing guidance for the movable shell 7.

[0031] The inner side of the arc-shaped plate 6 is bonded with a medical double-sided adhesive tape 18. After the fixation is completed in the later stage, the medical double-sided adhesive tape 18 can be replaced for reuse.

[0032] Example 2

[0033] Embodiment 1 is further optimized, specifically, as Figure 1 As shown, a toggle block 16 is fixed to one end of the movable shell 7 away from the fixed rack 8, and a side groove 17 corresponding to the position of the toggle block 16 is opened on one side of the attached shell 1. The side groove 17 is slidably connected to the toggle block 16. Through the setting of the toggle block 16, it is convenient for medical staff to push the movable shell 7 to move, so that the user experience is better.

[0034] From the above, we can know that:

[0035] The utility model aims at the technical problem that the existing technology can fix the catheter during use, but the medical tape can only be attached to the skin surface. When the skin sweats, especially in summer, the medical tape is easy to fall off, the catheter slips off, and then causes catheter infection. There is a certain room for improvement; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solution is:

[0036] In use, the bandage 2 is tied to the patient's arm or near the puncture site, and then the Velcro at one end of the bandage 2 is bonded to fix it. Then the medical staff inserts the catheter into the patient's puncture site and places the catheter between the two arc plates 6. After the puncture is completed, the toggle block 16 is pushed to make the toggle block 16 move along the inner side of the side groove 17 to drive the moving shell 7 to move. Because the elastic metal rod 10 is fixed to the rectangular matching groove 9, the elastic metal rod 10 is fixed to the elastic metal arc sheet 11, and the elastic metal arc sheet 11 and the elastic metal rod 10 have elastic deformation ability, so in Under the guidance of the inner side of the matching tooth groove 12, the moving movable shell 7 drives the elastic metal arc sheet 11 to move synchronously, so that the elastic metal arc sheet 11 is squeezed and contracted by the inner side of the matching tooth groove 12 to the rectangular matching groove 9. When the movable shell 7 moves the carrying support rod 4 to a suitable position, the pushing of the toggle block 16 is stopped. At this time, the elastic metal arc sheet 11 is placed in a corresponding matching tooth groove 12 to limit the position of the movable shell 7. At the same time, the medical double-sided tape 18 on the inner side of the arc plate 6 is bonded and fixed to the outside of the catheter. Under the secondary fixation of the arc plate 6, the fixing effect of the catheter is more stable.

[0037] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0038] The utility model makes it easy to fix the catheter through the structural design of the auxiliary mechanism, and can fix the device on the patient through the strap 2, which is not easy to fall off, can prevent the dressing at the puncture point between the catheter and the skin from being lifted up when the catheter is accidentally touched, thereby improving the safety of the device.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A catheter fixing device, characterized in that: The invention comprises an attachment shell (1) and a binding strap (2), wherein the binding straps (2) are fixed at both ends of the attachment shell (1), and a Velcro is arranged at one end of the binding strap (2) away from the attachment shell (1). An auxiliary structure is arranged on the inner side of the attachment shell (1), and the auxiliary structure is used to fix the catheter. The auxiliary structure comprises a fixing component and a transmission component. A guide top groove (3) is provided on the top of the attachment shell (1), and a fixing component is arranged on the inner side of the guide top groove (3), and a transmission component is arranged on the inner side of the fixing component. The fixing component comprises a carrying support rod (4), a fixed support rod (5) and an arc plate (6). The carrying support rod (4) is slidably connected to the inner side of the guide top groove (3), and a fixed support rod (5) is fixed at one end of the top of the attachment shell (1) and at a position deviating from the guide top groove (3), and an arc plate (6) is fixed on the side where the fixed support rod (5) and the carrying support rod (4) are close to each other.

2. A catheter fixing device according to claim 1, characterized in that: The transmission assembly comprises a movable shell (7), a fixed rack (8), a rectangular matching groove (9), an elastic metal rod (10) and an elastic metal arc sheet (11); the movable shell (7) is assembled on one side of the interior of the attached shell (1); the fixed rack (8) is fixed on the other side of the interior of the attached shell (1); a rectangular matching groove (9) is provided on one side of the movable shell (7); an elastic metal rod (10) is fixed on one end of the inner side of the rectangular matching groove (9); an elastic metal arc sheet (11) is fixed on one end of the elastic metal rod (10); and the elastic metal arc sheet (11) is assembled and connected with the fixed rack (8).

3. A catheter fixing device according to claim 2, characterized in that: A plurality of matching tooth grooves (12) are evenly distributed on one side of the fixed rack (8), and the matching tooth grooves (12) are slidably connected to the elastic metal arc sheet (11).

4. A catheter fixing device according to claim 2, characterized in that: Two pin seats (13) are fixed on the top and bottom of the movable shell (7), and the inner sides of the pin seats (13) are rotatably connected to auxiliary rollers (14) via pins. The top and bottom of the inner side of the attached shell (1) are provided with two guide rail grooves (15) corresponding to the positions of the auxiliary rollers (14), and the auxiliary rollers (14) are in close contact with the inner sides of the guide rail grooves (15).

5. A catheter fixing device according to claim 2, characterized in that: A toggle block (16) is fixed to one end of the movable shell (7) away from the fixed rack (8), and a side groove (17) corresponding to the position of the toggle block (16) is opened on one side of the attached shell (1), and the side groove (17) is slidably connected to the toggle block (16).

6. A catheter fixing device according to claim 1, characterized in that: The inner sides of the arc-shaped plates (6) are bonded with medical double-sided adhesive tape (18).

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