Integrated holder for a continuous renal replacement therapy line

Abstract

The application provides an integrated fixing frame for a continuous kidney replacement therapy pipeline, comprising: a fixing clamp; a mounting frame sleeved on the fixing clamp; a pipe clamp assembly fixedly installed on the mounting frame and used for mounting a treatment instrument; and a locking mechanism comprising an adjusting rod, an adjusting piece and a pressing ring, wherein the adjusting rod is installed on the mounting frame, the pressing ring is slidably installed on the inner side of the mounting frame, the adjusting rod can be rotated clockwise and counterclockwise, the pressing ring can be moved up and down by the adjusting piece, the pressing ring can exert pressure on the hinge of the fixing clamp when moving downward, the fixing clamp is provided with a slot, and the adjusting rod can be inserted into the slot when moving downward. The technical problem that the treatment pipeline may be subjected to continuous or instantaneous external force due to changes in the patient's body position, pulling by medical care operation or accidental hooking, and the fixing frame is difficult to resist such pulling only by the simple engagement of the elastic clamp and the mounting rod, and the fixing frame is prone to sliding, displacement and even falling off from the mounting rod as a whole can be solved.

Description

Technical Field

[0001] This invention relates to the field of hemodialysis technology, and more specifically to an integrated fixation frame for continuous renal replacement therapy tubing. Background Technology

[0002] Continuous renal replacement therapy (CRRT) is a commonly used blood purification technique for critically ill patients. Its treatment tubing includes key components such as perfusion devices and dialyzers. To ensure treatment safety and ease of operation, these components are often supported and positioned using specialized brackets.

[0003] Currently, most clinically used fixation devices are made of metal or plastic. Their main structure is designed as a bracket or slot to hold an irrigation device or dialyzer, connected to a cylindrical or track-type mounting rod on the side of the treatment device via elastic clips on the side of the fixation device. While this method of fixation relying on elastic clips can meet basic support needs in a static state, its stability depends solely on the elasticity and friction of the clips themselves, lacking additional locking or anti-dislodgement mechanisms. In clinical practice, the treatment tubing may experience continuous or instantaneous external forces due to patient position changes, traction during medical procedures, or accidental snagging. In such cases, the simple engagement of the elastic clips and mounting rods is insufficient to resist such pulling, easily leading to slippage, displacement, or even complete detachment from the mounting rod. Accidental detachment of the fixation device can not only interrupt treatment and endanger patient safety but also cause damage to valuable consumables such as irrigation devices, increasing clinical risks and economic costs. Therefore, an integrated fixation device for continuous renal replacement therapy tubing is proposed to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes an integrated fixation frame for continuous renal replacement therapy tubing. This solves the technical problem that existing technologies may subject treatment tubing to continuous or instantaneous external forces due to changes in patient positioning, traction during medical operations, or accidental snagging. The fixation frame, relying solely on the simple engagement of elastic clips and mounting rods, is insufficient to resist such pulling, and is prone to sliding, displacement, or even detachment from the mounting rod.

[0005] The technical solution adopted in this invention is an integrated fixation frame for continuous renal replacement therapy tubing, comprising: Fixing clip; The mounting bracket is fitted onto the fixing clip; A tube clamp assembly is fixedly installed on the mounting bracket for the installation of therapeutic instruments; The locking mechanism includes an adjusting rod, an adjusting component, and a pressure ring. The adjusting rod is mounted on the mounting frame, and the pressure ring is slidably mounted on the inner side of the mounting frame. The adjusting rod can rotate clockwise and counterclockwise, which can drive the pressure ring to move up and down through the adjusting component. The downward movement of the pressure ring can apply pressure to the hinge of the fixing clamp, thereby increasing the friction at the hinge of the fixing clamp. The fixing clamp has a slot, and the downward movement of the adjusting rod can enter the slot for insertion.

[0006] In a preferred embodiment, the adjusting element is an adjusting cylinder, which is rotatably mounted on the mounting bracket. The adjusting cylinder is slidably connected to the adjusting rod, and the adjusting cylinder is located inside the pressure ring. The adjusting cylinder is also threadedly rotatably connected to the pressure ring.

[0007] In a preferred embodiment, the mounting bracket is rotatably connected to the fixing clamp.

[0008] In a preferred embodiment, the cross-section of the adjusting rod is a rotationally symmetrical shape, and the shape of the slot matches the shape of the adjusting rod.

[0009] In a preferred embodiment, the fixing clamp includes two clamping plates, and hinge seats are respectively fixed on the upper and lower sides of the two clamping plates. The two hinge seats are elastically hinged together by a torsion spring, and the slot is formed in the hinge seat.

[0010] In a preferred embodiment, both clamps are rotatably connected to the mounting bracket.

[0011] In a preferred embodiment, the pipe clamp assembly includes two elastic pipe clamps, both of which are fixedly mounted on the mounting bracket, and anti-slip pads are fixedly mounted on the inner side of both elastic pipe clamps.

[0012] In a preferred embodiment, a branch pipe clamp is fixedly installed on the side of the elastic pipe clamp.

[0013] In a preferred embodiment, a strap is fixedly connected to the clamping opening of the elastic tube clamp, the elastic tube clamp has a through groove, the strap slides through the through groove, and the end face of the strap and the side of the elastic tube clamp are respectively provided with hook and loop ends of Velcro.

[0014] As can be seen from the above technical solution, the beneficial technical effects of the present invention are as follows: This invention significantly improves the reliability of the connection between the clamping clip and the mounting rod through an innovative locking mechanism design. When the adjusting rod rotates clockwise, the adjusting element drives the pressure ring downwards, applying continuous pressure to the hinge of the clamping clip. This ensures that the meshing surfaces of the two clamps are tightly pressed against the surface of the mounting rod, greatly increasing the friction at the hinge and forming the first mechanical locking defense. Simultaneously, the adjusting rod continues to move downwards and inserts into the slot of the clamping clip, achieving a rigid connection between the adjusting rod and the clamping clip, forming the second anti-disengagement locking mechanism. This dual locking structure of friction locking and rigid connection allows the clamp to effectively resist axial tension, radial torque, and accidental impacts from the treatment tubing, completely avoiding the slippage risk caused by traditional elastic clamps relying solely on friction. When disassembly or position adjustment is required, simply pull the adjusting rod out of the slot, then rotate it counterclockwise. The pressure ring moves upwards, releasing the pressure at the hinge, and the clamping clip returns to its elastic opening and closing state. The operation is convenient and requires no additional tools. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of an integrated fixation frame for a continuous renal replacement therapy tubing according to the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded view of the structure of the present invention; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 for Figure 4 Enlarged view of point C in the middle; Figure label: Fixing clip 1, mounting bracket 11; Adjusting rod 12, pressure ring 121, limiting groove 1211, limiting strip 1212, slot 122, adjusting cylinder 123; Clamping plate 13, hinge seat 131, arc-shaped slider 132, annular groove 133, support rod 134; 2. Flexible pipe clamp, 21. Anti-slip pad, 22. Branch pipe clamp, 23. Strap, 231. Detailed Implementation

[0017] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0019] Example: like Figure 1-2 As shown, this embodiment provides an integrated fixation frame for a continuous renal replacement therapy tubing, including: a fixation clamp 1; and a mounting frame 11, which is sleeved on the fixation clamp 1. The fixation clamp 1 can be fixedly clamped on a straight rod installed on the side of the instrument, thereby adjusting the clamping height.

[0020] A tube clamp assembly, fixedly mounted on the mounting frame 11, is used for the installation of therapeutic devices. The tube clamp assembly includes two elastic tube clamps 2, both of which are fixedly mounted on the mounting frame 11. Anti-slip pads 21 are fixedly mounted on the inner side of each elastic tube clamp 2. Branch tube clamps 22 are fixedly mounted on the side of each elastic tube clamp 2. A strap 23 is fixedly connected to the clamp opening of each elastic tube clamp 2. Each elastic tube clamp 2 has a through groove 231 through which the strap 23 slides. The end face of the strap 23 and the side of the elastic tube clamp 2 are respectively provided with hook and loop ends of Velcro. The strap 23 provides secondary protection for the installed perfusion device or dialyzer, preventing it from falling off. After the strap 23 is attached, it also provides protection to the branch tube clamps 22, thus providing secondary anti-detachment protection for the branch tube clamps 22.

[0021] The flexible tube clamp 2 is used to install the perfusion device or dialyzer. The side branch tube clamp 22 can provide auxiliary support for the connected tubing, prevent the upper and lower tubing from bending, and can arrange the connected tubing to avoid tangling between the tubing. The anti-slip pad 21 has anti-slip texture on its surface, which can effectively increase the friction between the perfusion device or dialyzer shell and prevent the device from shifting or falling off due to equipment vibration or tubing pulling during treatment.

[0022] like Figure 2 , 3As shown in Figure 5, the locking mechanism includes an adjusting rod 12, an adjusting component, and a pressure ring 121. The adjusting rod 12 is mounted on the mounting bracket 11, and the pressure ring 121 is slidably mounted on the inner side of the mounting bracket 11. Rotating the adjusting rod 12 clockwise and counterclockwise allows the pressure ring 121 to move up and down via the adjusting component. The downward movement of the pressure ring 121 applies pressure to the hinge of the fixing clamp 1, increasing the friction at the hinge. The fixing clamp 1 has a slot 122, allowing the adjusting rod 12 to be inserted into the slot 122. An elastic anti-slip pad can be fixedly installed on the lower side of the pressure ring 121 to prevent hard contact while maintaining friction between the pressure ring 121 and the fixing clamp 1.

[0023] After the clamp 1 is installed on the straight rod on the side of the instrument, lift the adjusting rod 12 to disengage it from the slot 122. Then, rotate the adjusting rod 12 clockwise. The rotation of the adjusting rod 12 drives the pressure ring 121 to press down through the adjusting mechanism. The pressure ring 121 presses down and abuts against the hinge of the clamp 1, thereby creating a compressive force, increasing the friction at the hinge of the clamp 1, and making it more difficult to open the clamp 1. This ensures that the clamp 1 is stably clamped at the straight rod on the side of the instrument. Then, move the adjusting rod 12 down to insert it into the slot 122, thereby forming a two-stage locking mechanism. This avoids frictional wear and tear. It effectively prevents accidents such as pulling or collision that could cause the clamp 1 to fall off, avoid damage to the perfusion set or dialyzer, and prevent interference with the hemodialysis process.

[0024] The pressure ring 121 has a limiting groove 1211 on its side. Inside the cavity where the mounting bracket 11 slides up and down with the pressure ring 121, a limiting strip 1212 is fixedly installed, which slides and matches the limiting groove 1211. By sliding the limiting groove 1211 and the limiting strip 1212 up and down, the sliding direction of the pressure ring 121 can be restricted, preventing the pressure ring 121 from rotating arbitrarily.

[0025] In one embodiment, the adjusting element is an adjusting cylinder 123, which is rotatably mounted on the mounting bracket 11. The adjusting cylinder 123 is slidably connected to the adjusting rod 12, and the adjusting cylinder 123 is located inside the pressure ring 121. The adjusting cylinder 123 is threadedly rotatably connected to the pressure ring 121.

[0026] Both the outer side of the adjusting cylinder 123 and the inner side of the pressure ring 121 are provided with threaded sections, which enable the adjusting cylinder 123 and the pressure ring 121 to be rotatably connected by threads. Since the adjusting cylinder 123 is rotatably connected to the mounting bracket 11, when the adjusting rod 12 is rotated, the adjusting cylinder 123 rotates synchronously, thereby driving the pressure ring 121 to move. Since the pressure ring 121 can only slide up and down, the force in the direction of rotation of the adjusting cylinder 123 is converted into the direction of up and down through the threads, so that the pressure ring 121 moves down.

[0027] In one embodiment, such as Figure 3 , 6As shown, the mounting bracket 11 is rotatably connected to the fixing clamp 1.

[0028] Since the mounting bracket 11 and the fixing clamp 1 are rotatably connected, when the adjusting rod 12 is rotated, the downward-moving pressure ring 121 can compress the fixing clamp 1, which increases the friction between the fixing clamp 1 and the mounting bracket 11. This ensures that the mounting bracket 11 is also stable on the fixing clamp 1 while keeping the fixing clamp 1 stationary. The rotatable design of the mounting bracket 11 and the fixing clamp 1 means that the materials may wear out or deform slightly over time. If the adjusting rod 12 is always inserted into the slot 122 in the same position, the pressure of the pressure ring 121 will gradually weaken over time. To avoid this, the angle of the adjusting rod 12 is adjusted by rotating the mounting bracket 11, so that after the adjusting rod 12 tightens the pressure ring 121, it is aligned with the slot 122. This can be done by orienting a single point, such as the center of the fixing clamp 1. Simply rotate and tighten the adjusting rod 12 so that the knob on it points in the same direction as the center of the fixing clamp 1.

[0029] In one embodiment, the cross-section of the adjusting rod 12 is a rotationally symmetrical shape, and the shape of the slot 122 matches the shape of the adjusting rod 12.

[0030] The cross-section of the adjusting rod 12 is a rotationally symmetrical shape, for example, a regular polygon. This design allows for multiple insertion positions of the adjusting rod 12 and the slot 122, with equal spacing between each position. Based on the rotationally symmetrical directions of the adjusting rod 12, a corresponding indicator position can be designed on the knob of the adjusting rod 12 for each direction. For example, taking the center position of the fixing clip 1 as an example, as long as one of the multiple indicator positions of the knob points to the center of the fixing clip 1, it is sufficient. The adjusting rod 12 is rotatably connected to the mounting bracket 11. The pressure ring 121 will lock after moving a certain distance, so that when no material loss occurs, after the pressure ring 121 is positioned, the knob on the upper side of the adjusting rod 12 will indicate the fixed position of the mounting bracket 11. That is, the adjusting rod 12 can be inserted downward into the slot 122 at multiple positions of the fixing clip 1 to form a lock; in this way, while avoiding material loss, the squeezing force of the pressure ring 121 is not reduced, and the function of adjusting the direction of the mounting bracket 11 can be satisfied. Thus, the position of the mounting bracket 11 can be adaptively adjusted according to the usage scenario and environment.

[0031] In one embodiment, such as Figure 4 , 6 As shown, the fixing clamp 1 includes two clamping plates 13, and hinge seats 131 are fixedly provided on the upper and lower sides of the two clamping plates 13 respectively. The two hinge seats 131 are elastically hinged together by a torsion spring, and a slot 122 is opened in the hinge seat 131. Both clamping plates 13 are rotatably connected to the mounting bracket 11.

[0032] An arc-shaped slider 132 is fixedly provided on the hinge seat 131 of one clamping plate 13 and the end face of the adjacent clamping plate 13. The center of the arc-shaped slider 132 is concentric with the axis of the hinge of the two clamping plates 13. A circular groove 133 is provided on the inner side of the mounting frame 11. The arc-shaped slider 132 is slidably installed in the circular groove 133, so that both clamping plates 13 are rotatably connected to the mounting frame 11. A support rod 134 is rotatably connected between the two hinge seats 131. A torsion spring is sleeved on the outside of the support rod 134. The support rod 134 ensures the stability of the clamping rotation of the fixed clamp 1 and also provides support for the torsion spring.

[0033] The working principle of the embodiments is explained in detail below: The fixing clip 1 is held in place by two clamping plates 13 on a straight rod on the side of the instrument. A torsion spring provides a continuous clamping force to keep the clamping plates 13 closed. When it is necessary to adjust the height of the fixing clip 1 on the straight rod, medical staff press the outside of the clamping plate 13 to compress the torsion spring, and the clamping plate 13 opens so that it can be moved up and down along the straight rod to the target position. After releasing the clamping plate 13, the torsion spring returns to its original position to achieve clamping and fixation.

[0034] Before installing the treatment device, first determine the orientation angle of the mounting bracket 11 according to the treatment needs. First, pull the adjusting rod 12 upwards so that its bottom end disengages from the slot 122. Then, rotate the adjusting rod 12 counterclockwise to move the pressure ring 121 upwards. At this time, the adjusting rod 12 and the mounting bracket 11 can rotate freely. Then, rotate the mounting bracket 11 so that the elastic tube clamp 2 faces the direction that is easy to operate. At this time, the arc-shaped slider 132 is slidably connected to the annular groove 133, realizing the horizontal rotation adjustment of the mounting bracket 11 relative to the fixed clamp 1. After the angle is determined, the adjusting rod 12 can be operated again.

[0035] At this time, rotating the adjusting rod 12 clockwise causes the adjusting cylinder 123 to rotate synchronously with the adjusting rod 12. Since the adjusting cylinder 123 is threadedly engaged with the pressure ring 121 and the pressure ring 121 is restricted by the guiding effect of the limiting groove 1211 and the limiting strip 1212 and cannot rotate, the rotational motion of the adjusting cylinder 123 is converted into the linear downward motion of the pressure ring 121. After the pressure ring 121 moves down to abut against the upper surface of the hinge seat 131, the adjusting rod 12 continues to rotate, and the pressure ring 121 applies downward pressure to the hinge seat 131. This pressure is transmitted to the hinge of the two clamping plates 13, increasing the resistance torque of the clamping plates 13 rotating around the support rod 134, that is, increasing the external force required to open the fixing clamp 1, effectively preventing unexpected loosening.

[0036] After the pressure ring 121 is pressed into place, observe whether the indicator mark at the top of the adjusting rod 12 is aligned with the pre-set alignment mark on the mounting bracket 11. If there is a deviation, first rotate part of the adjusting rod 12 counterclockwise to release the tightness of the pressure ring 121, then finely adjust the rotation angle of the mounting bracket 11, and then rotate the adjusting rod 12 clockwise to align the bottom end of the adjusting rod 12 with the slot 122. Then press the adjusting rod 12 down to insert it into the slot 122. The rotationally symmetrical cross-section design of the adjusting rod 12 and the multi-directional adaptation structure of the slot 122 allow for multiple feasible insertion positions within the effective locking range of the pressure ring 121, balancing locking reliability and angle adjustment flexibility.

[0037] After locking, insert the perfusion device or dialyzer into the elastic tubing clamp 2. The anti-slip pad 21 deforms under pressure to conform to the curved surface of the device shell, providing a stable grip. The tubing connected to the upper and lower ends of the device is supported and fixed by the branch clamps 22. The arc-shaped support structure of the branch clamps 22 keeps the tubing in a natural curvature, avoiding sharp bends that could restrict flow or damage the tubing. Multiple tubing can be arranged in an orderly manner along the branch clamps 22, reducing mutual entanglement and interference.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An integrated fixation frame for continuous renal replacement therapy tubing, characterized in that, include: Fixing clip (1); Mounting bracket (11) is fitted onto the fixing clip (1); The tube clamp assembly is fixedly installed on the mounting bracket (11) for the installation of the treatment device; The locking mechanism includes an adjusting rod (12), an adjusting component, and a pressure ring (121). The adjusting rod (12) is mounted on the mounting frame (11). The pressure ring (121) is slidably mounted on the inner side of the mounting frame (11). The adjusting rod (12) can rotate clockwise and counterclockwise, and can drive the pressure ring (121) to move up and down through the adjusting component. The downward movement of the pressure ring (121) can apply pressure to the hinge of the fixing clamp (1), which can increase the friction at the hinge of the fixing clamp (1). The fixing clamp (1) has a slot (122). The downward movement of the adjusting rod (12) can enter the slot (122) for insertion.

2. The integrated fixation frame for a continuous renal replacement therapy tubing according to claim 1, characterized in that, The adjusting component is an adjusting cylinder (123), which is rotatably mounted on the mounting bracket (11). The adjusting cylinder (123) is slidably connected to the adjusting rod (12) in the upper and lower parts. The adjusting cylinder (123) is located inside the pressure ring (121), and the adjusting cylinder (123) is threadedly rotatably connected to the pressure ring (121).

3. The integrated fixation frame for a continuous renal replacement therapy tubing according to claim 1, characterized in that, The mounting bracket (11) is rotatably connected to the fixing clamp (1).

4. An integrated fixation frame for a continuous renal replacement therapy tubing according to claim 3, characterized in that, The cross-section of the adjusting rod (12) is a rotationally symmetrical figure, and the shape of the slot (122) matches the shape of the adjusting rod (12).

5. An integrated fixation frame for a continuous renal replacement therapy tubing according to claim 3, characterized in that, The fixing clamp (1) includes two clamping plates (13), and the upper and lower sides of the two clamping plates (13) are respectively fixed with hinge seats (131). The two hinge seats (131) are elastically hinged together by a torsion spring, and the slot (122) is opened in the hinge seat (131).

6. An integrated fixation frame for a continuous renal replacement therapy tubing according to claim 5, characterized in that, Both clamps (13) are rotatably connected to the mounting bracket (11).

7. An integrated fixation frame for a continuous renal replacement therapy tubing according to claim 1, characterized in that, The pipe clamp assembly includes two elastic pipe clamps (2), both of which are fixedly installed on the mounting frame (11), and anti-slip pads (21) are fixedly installed on the inner side of both elastic pipe clamps (2).

8. An integrated fixation frame for a continuous renal replacement therapy tubing according to claim 7, characterized in that, The elastic pipe clamp (2) is fixedly installed on the side of the branch pipe clamp (22).

9. An integrated fixation frame for a continuous renal replacement therapy tubing according to claim 8, characterized in that, The elastic clamp (2) is fixedly connected to the clamping opening with a strap (23). The elastic clamp (2) has a through groove (231). The strap (23) slides through the through groove (231). The end face of the strap (23) and the side of the elastic clamp (2) are respectively provided with hook and loop ends of Velcro.

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