Hemodialysis catheter fixing device

Abstract

The utility model discloses a hemodialysis catheter fixing device. The hemodialysis catheter fixing device comprises a mounting seat and a fixing seat which are arranged up and down, the mounting seat and the fixing seat are connected through a connecting rod, the two ends of the connecting rod are connected with spherical hinge modules mounted on the mounting seat and the fixing seat, a plurality of restraining grooves arranged at intervals are formed in the upper end of the fixing seat, and the end, corresponding to each restraining groove, of the fixing seat is provided with an inverted-U-shaped restraining ring. The dialysis catheter fixing device is installed at the corresponding position through the installation base, meanwhile, the catheter is fixed through the fixing base, when the dialysis catheter is fixed, the ends of all the restraint rings are clamped into the limiting clamping grooves under the action of the torsional springs, and the catheter is effectively fixed and prevented from falling off; as the spherical hinge structure capable of randomly adjusting the angle is arranged between the mounting seat and the fixed seat, the height and the angle of the fixed seat can be adjusted in a multi-angle manner through the spherical hinge structure to adapt to the arrangement direction of the conduit, and the influence on liquid flow caused by conduit bending is avoided.

Description

Technical Field

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

[0002] Hemodialysis is the process of drawing the patient's blood out of the body and passing it through a purification device. Before the hemodialysis process, medical staff will form a reliable vascular access based on the patient's condition as needed, and the hemodialysis catheter and accessories need to be effectively connected to the hemodialysis machine. Since there are multiple hemodialysis catheters involved, in order to avoid medical staff pulling on the hemodialysis catheter during the operation, medical staff generally tie the hemodialysis catheter to the bed armrest or the patient's clothes with ropes or clips. However, when tying the hemodialysis catheter with ropes or clips, the tying force is difficult to control, which can easily cause the catheter to be blocked or fall off.

[0003] A catheter fixing clamp for hemodialysis disclosed in the Chinese utility model patent application publication specification CN209490359U includes a catheter fixing clamp for hemodialysis and a fixing piece. Although the catheter fixing clamp of the catheter fixing clamp for hemodialysis can fix multiple catheters separately, the angle of the catheter fixing clamp for hemodialysis is relatively fixed during use. The catheter fixing clamp for hemodialysis is difficult to protect the pipeline during use, so that when the pipeline is bent, the flow rate inside the pipeline is easily affected. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a hemodialysis catheter fixing device, which is convenient for fixing the hemodialysis catheter, not only preventing the catheter from falling off, but also avoiding excessive bending of the catheter, making the adjustment operation more convenient.

[0005] The technical solution adopted by the utility model is: a hemodialysis catheter fixing device, comprising a mounting seat and a fixing seat arranged from bottom to top; a connecting rod is provided between the mounting seat and the fixing seat, and both ends of the connecting rod are connected with ball joint modules installed on the mounting seat and the fixing seat, and the lower end of the mounting seat is provided with a mounting bayonet; a plurality of constraint grooves arranged at intervals are provided at the upper end of the fixing seat, and the fixing seat is provided with a constraint ring arranged in an inverted U shape at the end of each constraint groove, one end of the constraint ring is rotatably connected to the fixing seat, and the other end of the fixing seat corresponding to the constraint ring is provided with a limiting slot penetrating the outer side surface of the fixing seat, and one end of the constraint ring rotatably connected to the fixing seat is provided with a torsion spring, and the other end of the constraint ring is inserted into the limiting slot under the torsion force of the torsion spring.

[0006] The catheter fixing device provided by the technical solution is installed through the mounting seat and the catheter is fixed by the fixing seat. When the dialysis catheter is fixed, each constraint ring is rotated outward to facilitate medical staff to insert the catheter into the constraint ring. The catheter inserted into the constraint ring passes through the constraint groove. Under the action of the torsion spring, the end of each constraint ring is inserted into the limit groove, which effectively fixes the catheter and prevents the catheter from falling off. In addition, in the technical solution, a ball joint structure with an adjustable angle is provided between the mounting seat and the fixing seat. The height and angle of the fixing seat can be adjusted at multiple angles through the adjustment of the ball joint structure to adapt to the arrangement direction of the catheter, thereby avoiding the bending of the catheter affecting the flow of liquid. It is not only highly stable but also convenient and quick to operate.

[0007] Furthermore, a restraining platform is provided at the upper end of the fixing seat, and the restraining groove is arranged on the restraining platform.

[0008] Furthermore, a slot for inserting a label is provided on the side of the restraint platform.

[0009] Furthermore, elastic limiting protrusions are provided on both sides of the constraint groove away from one end of the constraint ring.

[0010] Furthermore, a mounting boss for rotatably mounting the end of the constraint ring is provided at the upper end of the fixing seat, and the torsion spring is located in the mounting boss and sleeved on the constraint ring.

[0011] Furthermore, a rotating paddle is provided at the upper end of the restraining ring, and anti-slip grooves are provided on the surface of the rotating paddle.

[0012] Furthermore, the restraint ring is covered with an anti-slip sleeve.

[0013] Furthermore, one side wall of the mounting bayonet is provided with a fixing clamping plate, and a pre-tightening bolt is threadedly connected to the outer side of the mounting seat. The pre-tightening bolt passes through the side wall of the mounting bayonet and is movably connected to the fixing clamping plate.

[0014] Furthermore, an elastic anti-slip pad is provided on the outer side of the fixing clamp.

[0015] The beneficial effects of the utility model are as follows: the utility model is installed through the mounting seat and the catheter is fixed by the fixing seat at the same time. When the dialysis catheter is fixed, the ends of each constraint ring are clamped into the limit groove under the action of the torsion spring, which effectively fixes the catheter and prevents the catheter from falling off. Since there is a ball joint structure with an adjustable angle between the mounting seat and the fixing seat, the height and angle of the fixing seat can be adjusted at multiple angles through the adjustment of the ball joint structure to adapt to the arrangement direction of the catheter, and the bending of the catheter can be avoided to affect the flow of liquid; the utility model has a reasonable structure, is easy to operate, and has a high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a stereoscopic view of a hemodialysis catheter fixing device provided in an embodiment of the utility model.

[0018] Figure 2 It is a side view of the hemodialysis catheter fixing device provided in an embodiment of the utility model.

[0019] Figure markings: mounting seat 100, mounting bayonet 110, fixing seat 200, constraint groove 210, limit slot 220, constraint platform 230, slot 231, limit cam 232, mounting boss 240, connecting rod 300, ball joint module 310, constraint ring 400, rotating paddle 410, anti-slip sleeve 420, fixing splint 500, pre-tightening bolt 510. DETAILED DESCRIPTION

[0020] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0021] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0022] like Figure 1 and Figure 2As shown, a specific embodiment of the utility model provides a hemodialysis catheter fixing device, which is used to fix a hemodialysis catheter, has high stability, a wide adjustment range, and can prevent the catheter from bending and winding; specifically, it includes a mounting seat 100 and a fixing seat 200 arranged from bottom to top; a connecting rod 300 is provided between the mounting seat 100 and the fixing seat 200, and ball joint modules 310 installed on the mounting seat 100 and the fixing seat 200 are connected at both ends of the connecting rod 300, and a mounting bayonet 110 is provided at the lower end of the mounting seat 100; A plurality of constraint grooves 210 arranged at intervals are provided at the upper end of the fixed seat 200, and a constraint ring 400 arranged in an inverted U shape is provided at the end of each constraint groove 210 of the fixed seat 200. One end of the constraint ring 400 is rotatably connected to the fixed seat 200, and the other end of the corresponding constraint ring 400 of the fixed seat 200 is provided with a limiting groove 220 that passes through the outer side surface of the fixed seat 200. A torsion spring is sleeved on one end of the constraint ring 400 that is rotatably connected to the fixed seat 200, so that the other end of the constraint ring 400 is inserted into the limiting groove 220 under the torsion force of the torsion spring.

[0023] like Figure 1 and Figure 2 As shown, through the above arrangement, the catheter fixing device provided in this embodiment is installed at the guardrail or other positions on the side of the bed through the mounting seat 100, and multiple dialysis catheters are fixed by using the structure on the fixing seat 200. When installing this device, the mounting bayonet 110 is inserted into the guardrail position outside the bed, and the dialysis catheter is rotated outward when fixed, so that the lower end opening of the constraint ring is located outside the fixing seat 200, which is convenient for medical staff to insert the dialysis catheter into the constraint ring 400. The catheter inserted into the constraint ring 400 passes through the constraint groove 210, and the end of each constraint ring 400 is inserted into the limit groove 220 under the action of the torsion spring, which effectively fixes the tube and catheter to prevent the tube and catheter from falling off; in this embodiment, the groove 220 is an arc groove matching the motion trajectory of the corresponding end of the constraint ring 400. In addition, in this embodiment, a ball joint structure with an arbitrarily adjustable angle is provided between the mounting seat 100 and the fixing seat 200, so that the height and angle of the fixing seat 200 can be adjusted at multiple angles to adapt to the arrangement direction of the catheter, thereby preventing the bending of the catheter from affecting the flow of liquid; it is not only highly stable but also convenient and quick to operate. The ball joint structure adopts the structure in the prior art, and its principle is to rotatably install the ball head on the hinge seat so that the ball head can be rotated arbitrarily to achieve the purpose of direction adjustment, and a screw is provided for pre-tightening and fixing; in actual applications, technical personnel in this field can select corresponding specifications according to needs.

[0024] like Figure 1 and Figure 2As shown, in order to improve the fixing effect of the dialysis catheter, a restraint platform 230 is provided at the upper end of the fixing seat 200 in this embodiment, and a restraint groove 210 is provided on the restraint platform 230. The restraint platform 230 can allow the dialysis catheter to be inserted at a position higher than the fixing seat 200, so as to avoid bending of the catheter after being stuck in the restraint ring 400; since there are multiple dialysis catheters, in order to facilitate medical staff to identify and adjust them in time; in this embodiment, a slot 231 for inserting a label is provided on the side of the restraint platform 230. The corresponding catheter label can be inserted into the slot 231 according to actual needs, so that medical staff can quickly identify the catheter and improve work efficiency.

[0025] As mentioned above, after the dialysis catheter is inserted into the constraint ring 400, it needs to pass through the constraint groove 210 to improve the constraint stability. In this embodiment, elastic limiting protrusions 232 are provided on both sides of the constraint groove 210 away from the end of the constraint ring 400. In this way, the end of the dialysis catheter passing through the constraint groove 210 can be limited by the limiting protrusions 232, further preventing the dialysis catheter from falling out of the constraint groove 210.

[0026] like Figure 1 and Figure 2 As shown, in this embodiment, the dialysis catheter can be stably inserted into the inner side of the constraint ring 400 to realize its constraint and fixation by rotating the constraint ring 400. In order to improve the installation stability of the constraint ring 400, the embodiment is provided with a mounting boss 240 for rotating the end of the constraint ring 400 at the upper end of the fixing seat 200, and the torsion spring is located in the mounting boss 240 and sleeved on the constraint ring 400. The mounting boss 240 can rotatably install the constraint ring 400, and under the action of the torsion spring, it is ensured that the other end of the constraint ring 400 can be inserted into the limiting slot 220 without external force. In order to facilitate the rotation of the constraint ring 400, the embodiment is provided with a rotating paddle 410 at the upper end of the constraint ring 400, and the surface of the rotating paddle 410 is provided with anti-slip grooves, so that the constraint ring 400 can be rotated outward by rotating the paddle 410, so that the dialysis catheter can be conveniently inserted into or removed from the constraint ring 400. In addition, the constraint ring 400 is sleeved with an anti-slip sleeve 420, which is used to play an anti-slip role and better limit and fix the catheter.

[0027] As mentioned above, the mounting seat 100 needs to be fixed on the bed guardrail through the mounting bayonet 110. In order to improve the fixing stability, in this embodiment, a fixing clamp 500 is provided on one side wall of the mounting bayonet 110, and a pre-tightening bolt 510 is screwed on the outer side of the mounting seat 100. The pre-tightening bolt 510 passes through the side wall of the mounting bayonet 110 and is movably connected to the fixing clamp 500, so that the fixing clamp 500 and the pre-tightening bolt 510 can rotate relative to each other in the circumferential direction and are relatively fixed in the axial direction, so that the fixing clamp 500 can release the bed guardrail when the pre-tightening bolt 510 is loosened, and clamp the bed guardrail when the pre-tightening bolt 510 is tightened. An elastic anti-skid pad is provided on the outer side of the fixing clamp 500. That is, when the mounting bayonet 110 is clamped into the bed guardrail, the pre-tightening bolt 510 is rotated to make the fixing clamp 500 clamp the guardrail, and the fixing stability is further improved under the contact of the anti-skid pad, which is convenient for installation or disassembly.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A hemodialysis catheter fixing device, characterized in that: It comprises a mounting seat (100) and a fixing seat (200) arranged from bottom to top; A connecting rod (300) is provided between the mounting seat (100) and the fixing seat (200), and both ends of the connecting rod (300) are connected to ball joint modules (310) mounted on the mounting seat (100) and the fixing seat (200); The lower end of the mounting seat (100) is provided with a mounting bayonet (110); the upper end of the fixed seat (200) is provided with a plurality of constraint grooves (210) arranged at intervals; the fixed seat (200) is provided with a constraint ring (400) arranged in an inverted U shape at the end corresponding to each constraint groove (210); one end of the constraint ring (400) is rotatably connected to the fixed seat (200); the other end of the fixed seat (200) corresponding to the constraint ring (400) is provided with a limiting slot (220) penetrating the outer side surface of the fixed seat (200); one end of the constraint ring (400) rotatably connected to the fixed seat (200) is sleeved with a torsion spring; the other end of the constraint ring (400) is clamped into the limiting slot (220) under the torsion of the torsion spring; Elastic limiting protrusions (232) are provided on both sides of the constraint groove (210) away from one end of the constraint ring (400).

2. The hemodialysis catheter fixing device according to claim 1, characterized in that: A restraining platform (230) is provided at the upper end of the fixing seat (200), and the restraining groove (210) is arranged on the restraining platform (230).

3. The hemodialysis catheter fixing device according to claim 2, characterized in that: A slot (231) for inserting a label is provided on the side of the restraining platform (230).

4. The hemodialysis catheter fixing device according to claim 1, characterized in that: The upper end of the fixing seat (200) is provided with a mounting boss (240) for rotatably mounting the end of the restraining ring (400); the torsion spring is located inside the mounting boss (240) and sleeved on the restraining ring (400).

5. The hemodialysis catheter fixing device according to claim 1, characterized in that: A rotating paddle (410) is provided at the upper end of the restraining ring (400), and anti-slip grooves are provided on the surface of the rotating paddle (410).

6. The hemodialysis catheter fixing device according to claim 1, characterized in that: The restraint ring (400) is covered with an anti-slip sleeve (420).

7. The hemodialysis catheter fixing device according to claim 1, characterized in that: A fixing clamp (500) is provided on one side wall of the mounting bayonet (110), and a pre-tightening bolt (510) is screwed on the outer side of the mounting seat (100). The pre-tightening bolt (510) passes through the side wall of the mounting bayonet (110) and is movably connected to the fixing clamp (500).

8. The hemodialysis catheter fixing device according to claim 7, characterized in that: An elastic anti-slip pad is provided on the outer side of the fixing clamp plate (500).

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