Anti-falling temporary catheter for femoral vein hemodialysis

Abstract

The utility model relates to the technical field of medical instruments, and discloses an anti-falling temporary catheter for femoral vein hemodialysis, which comprises a catheter body and a fixing frame, a clamping groove matched with the catheter body is arranged at the bottom end of the fixing frame, the catheter body is clamped in the clamping groove, and the fixing frame is fixed on the catheter body. The anti-falling femoral vein hemodialysis temporary catheter comprises a fixing frame, the side end of the fixing frame is provided with a fixing mechanism used for fixing the fixing frame to a thigh, and the fixing mechanism comprises a bandage assembly and a locking assembly. The two first connecting belts, the two elastic belts and the two second connecting belts can be wound around the thighs from the two sides of the fixing frame, then the two second connecting belts are fixed through the locking assemblies, the two second connecting belts are spliced and fixed, and therefore the fixing frame can be fixed to the thighs, and then the catheter body is pressed through the fixing frame; and the catheter body is fixed more stably.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a femoral vein hemodialysis temporary catheter that prevents dislodgement. Background Technology

[0002] The femoral vein is one of the deep veins of the lower limb, located below the inguinal ligament at the root of the thigh, at the confluence of the external iliac vein and the internal iliac vein, and continues into the popliteal vein. Hemodialysis temporary catheters usually refer to temporary central venous catheters, which are an important medical device used in the process of hemodialysis.

[0003] However, when using temporary hemodialysis catheters for hemodialysis treatment, the catheters are usually fixed to the skin with tape. However, the skin surface may have some dirt or sweat, which can easily affect the adhesiveness of the tape, resulting in insufficient fixation of the catheter and making it easy for the catheter to fall off. This not only affects the dialysis effect, but may also cause secondary harm to the patient. To address this issue, we have provided a femoral vein hemodialysis temporary catheter that prevents dislodgement. Utility Model Content

[0004] The purpose of this invention is to provide a femoral vein hemodialysis temporary catheter that prevents detachment. This addresses the problem that in the prior art, most catheters are fixed to the skin with tape. However, the skin surface may have dirt or sweat, which can easily affect the adhesiveness of the tape, resulting in an unstable fixation of the catheter and making it easy for the catheter to fall off. This not only affects the dialysis effect but may also cause secondary harm to the patient.

[0005] This utility model provides the following technical solution: a femoral vein hemodialysis temporary catheter that is designed to prevent dislodgement, comprising a catheter body and a fixing frame. The bottom end of the fixing frame is provided with a slot that is adapted to the catheter body, and the catheter body is locked in the slot. The side end of the fixing frame is provided with a fixing mechanism for fixing the fixing frame to the thigh. The fixing mechanism includes a strap assembly and a locking assembly.

[0006] The above technical solution, by setting a slot, allows the fixing frame to fix other conduit bodies, enabling the fixing frame to be recycled and more economical.

[0007] As a preferred embodiment of the above technical solution, the strap assembly includes two sets of connecting straps 1, both sets of connecting straps 1 are fixedly connected to both ends of the fixed frame, each set of connecting straps 1 has an elastic band connected to the end away from the fixed frame, and each set of elastic bands has a connecting strap 2 connected to the end away from the connecting strap 1, and the two sets of connecting straps 2 are connected and fixed by a locking assembly.

[0008] The above technical solution allows the frame to be fixed to the thigh, replacing adhesive tape to secure the catheter body. The fixation is secure and not easy to fall off, greatly increasing the stability of the device.

[0009] As a preferred embodiment of the above technical solution, the locking assembly includes a connecting plate and a connecting rod. The connecting plate is connected to the side of one set of connecting bands two away from the elastic band, and the connecting rod is connected to the end of another set of connecting bands two away from the elastic band. One end of the connecting plate has a through slot, and the end of the connecting rod away from the connecting band two is connected to a plug, which is inserted into the slot.

[0010] The above technical solution allows the two sets of connecting straps to be spliced ​​together for better binding around the thigh.

[0011] As a preferred embodiment of the above technical solution, both ends of the insert block are provided with sliding grooves, a spring is installed on the inner side of each set of sliding grooves, a limit block is slidably installed at the opening of each set of sliding grooves, and the inner end of the limit block is connected to the spring. One end of each set of limit blocks is in contact with the end of the connecting plate away from the connecting rod.

[0012] The above technical solution allows the insertion block to be fixed in the slot, thus enabling the two sets of connecting straps to be connected and fixed, thereby fixing the fixing frame on the thigh. The fixing frame can then press down on the catheter body, thus fixing the catheter body and greatly increasing the practicality of the device.

[0013] As a preferred embodiment of the above technical solution, each of the connecting strips one and two is provided with equidistant ventilation holes on its surface.

[0014] The above technical solution allows the connecting straps to be more breathable, making them more comfortable to wear on the thighs.

[0015] As a preferred embodiment of the above technical solution, the inner walls of each of the connecting strips one and two are equidistantly connected with anti-slip pads.

[0016] The above technical solution increases the friction between the frame and the skin, making the frame more stable and less prone to movement.

[0017] As a preferred embodiment of the above technical solution, an opening and closing component is provided on one side of the fixed frame. The opening and closing component includes a groove, which is formed at the top of the fixed frame and is connected to a slot. A cover plate is rotatably installed in the groove. Insert rods are connected to both sides of the end of the cover plate near the groove. Limiting grooves are formed on both sides of the inner wall of the groove, and each set of insert rods is inserted into the limiting groove.

[0018] The above technical solution allows the cover to be rotated open, and because the groove and the slot are connected, the switch of the catheter clamp on the catheter body can be adjusted to facilitate the use of the catheter body for hemodialysis, greatly increasing the convenience of the device.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention, by setting up a strap assembly and a locking assembly, allows two sets of connecting straps (first type), two sets of elastic straps, and two sets of connecting straps (second type) to be wrapped around the thigh from both sides of the fixing frame. The locking assembly then secures the two sets of connecting straps (second type) together, thus fixing the fixing frame to the thigh. The fixing frame then presses down on the catheter body, securing it more firmly and preventing it from falling off, greatly increasing the practicality of the device. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a femoral vein hemodialysis temporary catheter designed to prevent dislodgement;

[0022] Figure 2 A bottom-view cross-sectional diagram of a femoral vein hemodialysis temporary catheter designed to prevent dislodgement;

[0023] Figure 3 A schematic diagram of the locking component structure of a femoral vein hemodialysis temporary catheter designed to prevent dislodgement;

[0024] Figure 4 This is a schematic diagram of the opening and closing components of a femoral vein hemodialysis temporary catheter designed to prevent dislodgement.

[0025] In the diagram: 1. Tube body; 2. Fixing frame; 21. Slot; 3. Fixing mechanism; 4. Strap assembly; 41. Connecting strap one; 42. Elastic strap; 43. Connecting strap two; 44. Vent hole; 45. Anti-slip pad; 5. Locking assembly; 51. Connecting plate; 52. Slot; 53. Connecting rod; 54. Insertion block; 55. Slide groove; 56. Spring; 57. Limiting block; 6. Opening and closing assembly; 61. Groove; 62. Cover plate; 63. Insertion rod; 64. Limiting groove. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figures 1-4As shown, this utility model provides a technical solution: a temporary femoral vein hemodialysis catheter designed to prevent dislodgement, comprising a catheter body 1 and a fixing frame 2. The bottom end of the fixing frame 2 has a slot 21 adapted to the catheter body 1, allowing the catheter body 1 to be secured within the slot 21. This enables the fixing frame 2 to also secure other catheter bodies 1, allowing for reuse and greater cost-effectiveness. A fixing mechanism 3 for securing the fixing frame 2 to the thigh is installed on the side end of the fixing frame 2. The fixing mechanism 3 includes a strap assembly 4 and a locking assembly 5. The strap assembly 4 includes two sets of connecting straps 41, both sets of connecting straps 41 being fixedly connected to both ends of the fixing frame 2. Each set of connecting straps 41 has an elastic band 42 connected to the end furthest from the fixing frame 2, allowing for better adjustment according to the different thigh sizes of each individual. The elastic band 42 is located furthest from the connecting straps 41. Each end is connected to a connecting strap 43. The two sets of connecting straps 43 are connected and fixed by the locking component 5. This structure allows the two sets of connecting straps 43 to be pulled, causing the connecting strap 41 and the elastic band 42 to wrap around the thigh from both sides of the fixing frame 2. This fixes the fixing frame 2 to the thigh, replacing the use of adhesive tape to fix the catheter body 1. The fixation is secure and not easy to fall off, greatly increasing the stability of the device. Ventilation holes 44 are equidistantly opened on the surface of each set of connecting straps 41 and 43, allowing better ventilation and making it more comfortable to wear on the thigh. Anti-slip pads 45 are equidistantly connected to the inner wall of each set of connecting straps 41 and 43, increasing the friction between the straps and the skin, making the fixing frame 2 more stable and less prone to movement.

[0028] It should be noted that the fixing frame 2 can be made of transparent material, which allows for a clearer and more convenient observation of the wound.

[0029] As one implementation method in this embodiment, such as Figure 2 and Figure 3As shown, the locking assembly 5 includes a connecting plate 51 and a connecting rod 53. The connecting plate 51 is connected to the side of one set of connecting bands 43 away from the elastic band 42, and the connecting rod 53 is connected to the end of another set of connecting bands 43 away from the elastic band 42. One end of the connecting plate 51 has a slot 52 through it. The end of the connecting rod 53 away from the connecting band 43 is connected to a plug 54, which is inserted into the slot 52. Both ends of the plug 54 have sliding grooves 55. A spring 56 is installed inside each set of sliding grooves 55. A limit block 57 is slidably installed at the opening of each set of sliding grooves 55, and the inner end of the limit block 57 is connected to the spring 56. One end of each set of limit blocks 57 is connected to the connecting plate 51 away from the connecting rod. One end of 53 is fitted together, and this structure allows the insert 54 to be aligned with the slot 52. When the insert 54 is pushed into the slot 52, the limiting block 57 will be squeezed and pushed to move into the slide 55 to compress the spring 56 until the insert 54 drives the limiting block 57 through the slot 52. The limiting block 57 can then be pushed into the slide 55 by the spring force of the spring 56, so that the limiting block 57 abuts against one end of the connecting plate 51. In this way, the insert 54 can be fixed in the slot 52, so that the two sets of connecting straps 43 are connected and fixed, thereby fixing the fixing frame 2 on the thigh. In this way, the fixing frame 2 can press the catheter body 1, thereby fixing the catheter body 1 and greatly increasing the practicality of the device.

[0030] As one implementation method in this embodiment, such as Figure 4 As shown, an opening and closing component 6 is provided on one side of the fixed frame 2. The opening and closing component 6 includes a groove 61, which is located at the top of the fixed frame 2 and is connected to the slot 21. A cover plate 62 is rotatably installed in the groove 61. Insert rods 63 are connected to both sides of the end of the cover plate 62 near the groove 61. Limiting grooves 64 are provided on both sides of the inner wall of the groove 61. Each set of insert rods 63 is inserted into the limiting groove 64. This structure allows the cover plate 62 to be pulled upward by force, causing the cover plate 62 to pull the insert rods 63 out of the limiting groove 64, thus allowing the cover plate 62 to be rotated open. Moreover, since the groove 61 is connected to the slot 21, the switch of the catheter clamp on the catheter body 1 can be adjusted to facilitate the use of the catheter body 1 for hemodialysis, greatly increasing the convenience of the device.

[0031] Working principle: To fix the catheter body 1, simply insert the needle of the catheter body 1 into the femoral vein, then secure the exposed portion of the catheter body 1 into the slot 21. Next, pull the two sets of connecting straps 43, causing connecting strap 41 and elastic strap 42 to wrap around the thigh from both sides of the fixing frame 2 until the two sets of connecting straps 43 are joined. Then, align the insert 54 with the slot 52 and forcefully push the insert 54 into the slot 52. At this time, the limiting block 57 will be compressed and pushed into the slide groove 55 to compress the spring 56 until the insert 54 drives the limiting block 57 through the slot 52. The limiting block 57 can then be pushed into the slide groove 55 by the spring force of the spring 56, thus securing the limiting block. 57 abuts against one end of the connecting plate 51, so that the insert 54 can be fixed in the slot 52, so that the two sets of connecting straps 43 are connected and fixed, thereby fixing the fixing frame 2 on the thigh. In this way, the fixing frame 2 can press the catheter body 1, thereby fixing the catheter body 1, which greatly increases the practicality of the device. During this period, if the catheter body 1 needs to be used for hemodialysis, the cover plate 62 can be pushed upward forcefully, so that the cover plate 62 drives the insert rod 63 to be pulled out from the limiting groove 64, so that the cover plate 62 can be rotated open. Moreover, since the groove 61 is connected to the slot 21, the switch of the catheter clamp on the catheter body 1 can be adjusted to facilitate the use of the catheter body 1 for hemodialysis.

[0032] Alternatively, to remove the fixing frame 2, simply press both sets of limiting blocks 57 simultaneously, pushing both limiting blocks 57 into the slide groove 55 to compress the spring 56. This will release the limiting on the insert 54, thereby pulling the connecting rod 53 to pull the insert 54 out of the slot 52, thus removing the fixing frame 2.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A femoral vein hemodialysis temporary catheter designed to prevent dislodgement, comprising a catheter body (1) and a fixing frame (2), characterized in that: The bottom end of the fixing frame (2) is provided with a slot (21) that is adapted to the catheter body (1). The catheter body (1) is inserted into the slot (21). The side end of the fixing frame (2) is provided with a fixing mechanism (3) for fixing the fixing frame (2) to the thigh. The fixing mechanism (3) includes a strap assembly (4) and a locking assembly (5). The strap assembly (4) includes two sets of connecting straps (41), both sets of connecting straps (41) are fixedly connected to both ends of the fixed frame (2), and each set of connecting straps (41) is connected to an elastic strap (42) at the end away from the fixed frame (2), and each set of elastic straps (42) is connected to a connecting strap (43) at the end away from the connecting straps (41), and the two sets of connecting straps (43) are connected and fixed by a locking assembly (5); The locking assembly (5) includes a connecting plate (51) and a connecting rod (53). The connecting plate (51) is connected to the side of one set of connecting bands (43) away from the elastic band (42). The connecting rod (53) is connected to the end of another set of connecting bands (43) away from the elastic band (42). One end of the connecting plate (51) has a slot (52) through it. The end of the connecting rod (53) away from the connecting band (43) is connected to a plug (54). The plug (54) is inserted into the slot (52).

2. The femoral vein hemodialysis temporary catheter for preventing dislodgement according to claim 1, characterized in that: Both ends of the insert (54) are provided with sliding grooves (55), and a spring (56) is installed on the inner side of each set of sliding grooves (55). A limit block (57) is slidably installed at the opening of each set of sliding grooves (55), and the inner end of the limit block (57) is connected to the spring (56). One end of each set of limit blocks (57) is attached to and abuts against the end of the connecting plate (51) away from the connecting rod (53).

3. The femoral vein hemodialysis temporary catheter for preventing dislodgement according to claim 1, characterized in that: Each of the connecting strips 1 (41) and 2 (43) has equidistant ventilation holes (44) on its surface.

4. The femoral vein hemodialysis temporary catheter for preventing dislodgement according to claim 1, characterized in that: The inner walls of each of the connecting strips 1 (41) and 2 (43) are equidistantly connected with anti-slip pads (45).

5. The femoral vein hemodialysis temporary catheter for preventing dislodgement according to claim 1, characterized in that: An opening and closing component (6) is provided on one side of the fixed frame (2). The opening and closing component (6) includes a groove (61). The groove (61) is opened at the top of the fixed frame (2). The groove (61) is connected to the slot (21). A cover plate (62) is rotatably installed in the groove (61). Insert rods (63) are connected to both sides of the end of the cover plate (62) near the groove (61). Limiting grooves (64) are opened on both sides of the inner wall of the groove (61). Each set of insert rods (63) is inserted into the limiting groove (64).

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