Adjustable fixing device for hemodialysis catheter

Abstract

The utility model discloses an adjustable fixing device for a hemodialysis catheter, which comprises a universal hose and relates to the technical field of medical auxiliary instruments. According to the adjustable fixing device for the hemodialysis catheter, dialysis catheters with different catheter diameters can be clamped and fixed through the left clamping block and the right clamping block, when the adjustable fixing device is used, the right clamping block is pulled to be separated from the left clamping block, then the dialysis catheter is placed on the inner side of the left clamping block, then the right clamping block is loosened, a sliding block can be driven to move leftwards through the elastic force of a spring, and the hemodialysis catheter is fixed. Meanwhile, when a sliding block drives a connecting frame, a right clamping block moves leftwards, a dialysis catheter is positioned through a left clamping block, then an adjusting screw rod is rotated, a movable plate can drive a pressing block to descend through a limiting plate, when the pressing block is attached to the top face of a mounting plate, rotation of the adjusting screw rod is stopped, the connecting frame can be fixed, and catheters with different pipe diameters can be clamped; and the stability of the device for clamping the dialysis catheter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary instrument technical field, concretely is a kind of blood dialysis catheter adjustable fixing device. BACKGROUND

[0002] Hemodialysis, abbreviated as hemodialysis, is the process of draining blood in the body to the outside of the body through dialysis pipeline, removing waste and excess water in the body through dialysis machine, and then returning purified blood to the patient's body. During dialysis, adjustable fixing device is needed to meet the needs of catheter fixation and adjustment during hemodialysis process, to ensure the stability of the catheter in place, good blood flow, and reduce complications caused by catheter movement or twisting.

[0003] Referring to the patent application disclosed in the patent application with publication number CN218685480U, a kind of blood dialysis catheter fixing device, when clamping catheter, the upper arc-shaped box is lifted from the top of bottom box by lifting frame, at this time, catheter is placed in the concave cavity of lower heat plate, then, the upper arc-shaped box is covered on the top of bottom box, at this time, catheter is pressed between the opposite surfaces of upper arc-shaped box and bottom box, after pressing catheter, electric heating wire heats heat plate, and heat on heat plate is transmitted to catheter through insulating layer cloth, so as to realize heating the liquid passing through the inside of catheter.

[0004] However, the device of the above technology is clamped and fixed to the catheter by arc-shaped plate and bottom box, and the catheter for hemodialysis is not only one specification, but also divided into single-lumen, double-lumen and triple-lumen catheters and other types according to different treatment needs. The pipe diameters of these different types of catheters are different, and the above device is not convenient for clamping the catheter according to the change of pipe diameter, resulting in unstable clamping, and general practicability. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of blood dialysis catheter adjustable fixing device, solve the existing blood dialysis catheter adjustable fixing device not convenient for clamping catheter according to the change of pipe diameter, resulting in unstable clamping, and general practicability problem.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of blood dialysis catheter adjustable fixing device, including universal hose, the outside of universal hose is provided with fixing mechanism for conveniently adjusting and fixing dialysis catheter, the fixing mechanism includes:

[0007] The positioning device is arranged at the top end of the universal hose for fixing the position of the dialysis catheter, and the positioning device comprises a mounting plate fixedly arranged at the top end of the universal hose, a connecting block fixedly arranged at the left side of the top surface of the mounting plate, and a left clamping block fixedly arranged at the right side of the connecting block.

[0008] The connecting assembly is arranged at the bottom end of the universal hose for connecting the device with the patient's arm.

[0009] Preferably, the driving assembly comprises a limiting rod fixedly arranged in the sliding groove, a spring movably arranged at the outer side of the limiting rod, the left end of the limiting rod movably penetrating through the right side of the sliding block and fixedly arranged at the left side of the sliding groove, the left end of the spring abutting against the right side of the sliding block, the right end of the spring fixedly arranged at the right side of the sliding groove, the left side of the right clamping block movably penetrating through the inside of the first slot and abutting against the inside of the left clamping block, and the right side of the left clamping block movably penetrating through the inside of the second slot and abutting against the inside of the right clamping block.

[0010] Preferably, the limiting assembly comprises a connecting plate fixedly arranged at the right side of the connecting frame, a adjusting screw threadedly arranged at the top surface of the connecting plate, an active plate movably arranged at the bottom end of the adjusting screw, limiting plates fixedly arranged at the front and back sides of the top surface of the active plate, and pressing blocks fixedly arranged at the front and back sides of the bottom surface of the active plate.

[0011] Preferably, the bottom end of the adjusting screw threadedly penetrates through the top surface of the connecting plate and is movably arranged at the top surface of the active plate, and the top surface of the limiting plate movably penetrates through the bottom surface of the connecting plate and extends to the top surface of the connecting plate.

[0012] Preferably, the connecting assembly comprises a left arc plate fixedly arranged at the bottom end of the universal hose, an arc-shaped plate movably hinged at the left side of the left arc plate, a magic sticky tape fixedly arranged at the bottom surface of the arc-shaped plate, a right arc plate movably hinged at the right side of the left arc plate, and a connecting slot arranged at the left side of the right arc plate.

[0013] Preferably, the right side of the connecting slot penetrates through the left side of the right arc plate and extends to the right side of the right arc plate, the right side of the magic sticky tape movably penetrates through the inside of the connecting slot and pulls the soft surface of the magic sticky tape to be bonded to the hook surface of the magic sticky tape in the opposite direction.

[0014] This invention provides an adjustable fixing device for hemodialysis catheters. Compared with the prior art, it has the following advantages:

[0015] (1) The adjustable fixing device for hemodialysis catheters can clamp and fix dialysis catheters of different diameters by setting left and right clamps. When in use, pull the right clamp to separate from the left clamp, then place the dialysis catheter inside the left clamp, and then release the right clamp. At this time, the spring force will drive the slider to move to the left. At the same time, the slider will drive the connecting frame to move the right clamp to the left. The dialysis catheter is positioned by the left clamp. Then, rotate the adjusting screw to make the movable plate drive the pressure block to descend through the limiting plate. When the pressure block is attached to the top surface of the mounting plate, stop rotating the adjusting screw to fix the connecting frame. It can clamp catheters of different diameters, which improves the stability of the device in clamping dialysis catheters.

[0016] (2) The adjustable fixation device of the hemodialysis catheter can be easily fixed to the patient's arm by means of the arc plate, the right arc plate and the Velcro strap. When in use, the patient's arm is passed between the left arc plate and the Velcro strap, and then the Velcro strap is tightened so that the arc plate and the right arc plate are pulled inward and pressed tightly against the patient's arm. Then, the soft side of the right end of the Velcro strap is attached to the barbed side of the Velcro strap to fix the length of the Velcro strap and fix the device to the patient's arm. It is easy to wear and also easy for the patient to adjust the position of the device fixed on the patient's arm. It is very practical. Attached Figure Description

[0017] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0018] Figure 2 This is a three-dimensional appearance diagram of the positioning component of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the positioning component of this utility model;

[0020] Figure 4 This is a three-dimensional appearance diagram of the connecting component of this utility model.

[0021] In the diagram: 1-Universal flexible hose, 2-Fixing mechanism, 21-Positioning device, 211-Left clamping block, 212-First slot, 213-Right clamping block, 214-Second slot, 215-Connecting frame, 216-Adjusting screw, 217-Mounting plate, 218-Slider, 219-Limiting plate, 2110-Connecting plate, 2111-Moving plate, 2112-Pressure block, 2113-Limiting rod, 2114-Slide groove, 2115-Spring, 2116-Connecting block, 22-Connecting assembly, 221-Left arc plate, 222-Arc plate, 223-Right arc plate, 224-Connecting groove, 225-Hook and Velcro tape. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Refer to Figures 1-4 , the present utility model provides two technical solutions:

[0024] The first implementation manner: A fixator for adjustable hemodialysis catheter, including a universal hose 1, and through the universal hose 1, the fixed dialysis catheter can be adjusted at multiple angles. A fixing mechanism 2 is arranged on the outer side of the universal hose 1 to facilitate the adjustment and fixation of the dialysis catheter. The fixing mechanism 2 includes:

[0025] A positioning device 21, arranged at the top end of the universal hose 1 to fix the position of the dialysis catheter. The positioning device 21 includes a mounting plate 217 fixedly installed at the top end of the universal hose 1. On the left side of the top surface of the mounting plate 217, a connecting block 2116 is fixedly installed. On the right side of the connecting block 2116, a left clamping block 211 is fixedly installed, and the right clamping block 213 is in a "king" shape when unfolded. On the front and back sides of the top and bottom surfaces of the left clamping block 211, first slot openings 212 are provided. A chute 2114 is provided on the top surface of the mounting plate 217. A slider 218 is slidably installed inside the chute 2114. On the top surface of the slider 218, a connecting frame 215 is fixedly installed. On the left side of the connecting frame 215, a right clamping block 213 is fixedly installed, and the right clamping block 213 is in a "worker" shape when unfolded. Second slot openings 214 are provided on the top and bottom surfaces of the right clamping block 213. A driving component is arranged inside the chute 2114 to drive the slider 218 to move. A limiting component is arranged on the right side of the connecting frame 215 to fix the position of the connecting frame 215;

[0026] The connecting assembly 22 is arranged at the bottom end of the universal hose 1 and used for connecting the device with the patient's arm. The driving assembly comprises a limiting rod 2113 fixedly installed in the sliding groove 2114. The outer side of the limiting rod 2113 movably installs a spring 2115, and the position of the spring 2115 can be limited through the limiting rod 2113. The left end of the limiting rod 2113 movably penetrates the right side of the sliding block 218 and is fixedly installed at the left side of the sliding groove 2114. The left end of the spring 2115 is tightly attached to the right side of the sliding block 218. The right end of the spring 2115 is fixedly installed at the right side of the sliding groove 2114, and the sliding block 218 can be pushed to move left through the elastic force of the spring 2115. Then the sliding block 218 drives the connecting frame 215 to move left with the right clamping block 213 passing through the left clamping block 211 to position the dialysis catheter, which is convenient and fast. The left side of the right clamping block 213 movably penetrates the inside of the first slot 212 and is tightly attached to the inside of the left clamping block 211. The right side of the left clamping block 211 movably penetrates the inside of the second slot 214 and is tightly attached to the inside of the right clamping block 213. The left clamping block 211 and the right clamping block 213 can clamp dialysis catheters with different diameters through the first slot 212 and the second slot 214, so as to avoid the unstable clamping of the dialysis catheter with too narrow diameter. The limiting assembly comprises a connecting plate 2110 fixedly installed at the right side of the connecting frame 215. The top surface of the connecting plate 2110 threadedly installs an adjusting screw 216. The bottom end of the adjusting screw 216 movably installs a movable plate 2111. The front and rear sides of the top surface of the movable plate 2111 are fixedly installed with limiting plates 219. The front and rear sides of the bottom surface of the movable plate 2111 are fixedly installed with pressing blocks 2112. The bottom surface of the pressing block 2112 is provided with anti-skid lines for improving the friction between the pressing block 2112 and the mounting plate 217. The bottom end of the adjusting screw 216 threadedly penetrates the top surface of the connecting plate 2110 and is movably installed at the top surface of the movable plate 2111. The top surface of the limiting plate 219 movably penetrates the bottom surface of the connecting plate 2110 and extends to the top surface of the connecting plate 2110. The lifting track of the movable plate 2111 can be limited through the limiting plate 219. When the adjusting screw 216 is rotated, the movable plate 2111 drives the pressing block 2112 to descend to fix the connecting frame 215, thereby improving the stability of the left clamping block 211 and the right clamping block 213 clamping the dialysis pipeline.

[0027] The left clamp block 211 and the right clamp block 213 are arranged to clamp and fix dialysis catheters with different pipe diameters, in use, the right clamp block 213 is pulled away from the left clamp block 211, then the dialysis catheter is placed on the inner side of the left clamp block 211, then the right clamp block 213 is loosened, at this time, the spring 2115 drives the sliding block 218 to move left, and the sliding block 218 drives the connecting frame 215 to move left through the right clamp block 213, so that the dialysis catheter is positioned through the left clamp block 211, then the rotating adjusting screw 216 drives the movable plate 2111 to drive the pressing block 2112 to descend through the limiting plate 219, when the pressing block 2112 is attached to the top surface of the mounting plate 217, the rotating adjusting screw 216 is stopped, so that the connecting frame 215 is fixed, and catheters with different pipe diameters can be clamped, thereby improving the stability of the device in clamping the dialysis catheter.

[0028] The second embodiment is mainly different from the first embodiment in that the connecting assembly 22 comprises a left arc plate 221 fixedly installed at the bottom end of the universal hose 1, an arc-shaped plate 222 movably hinged to the left side of the left arc plate 221, a magic sticky tape 225 fixedly installed at the bottom surface of the arc-shaped plate 222, a right arc plate 223 movably hinged to the right side of the left arc plate 221, and soft pads fixedly installed at the inner sides of the left arc plate 221, the arc-shaped plate 222 and the right arc plate 223 for improving the comfort of the patient, a connecting groove 224 formed at the left side of the right arc plate 223, the connecting groove 224 extending through the left side of the right arc plate 223 to the right side of the right arc plate 223, the magic sticky tape 225 movably extending through the inside of the connecting groove 224 and being pulled in the opposite direction to stick the soft surface of the magic sticky tape 225 to the hook surface of the magic sticky tape 225, and the patient's arm being inserted between the left arc plate 221 and the magic sticky tape 225, then the magic sticky tape 225 being pulled tight to make the arc-shaped plate 222 and the right arc plate 223 shrink inward and tightly adhere to the patient's arm, then the soft surface of the right end of the magic sticky tape 225 being stuck to the thorn surface of the magic sticky tape 225 to fix the device on the patient's arm, and the patient can conveniently adjust the fixing position.

[0029] The arc-shaped plate 222, the right arc plate 223 and the magic sticky tape 225 are arranged to conveniently fix the device on the patient's arm, in use, the patient's arm is inserted between the left arc plate 221 and the magic sticky tape 225, then the magic sticky tape 225 is pulled tight to make the arc-shaped plate 222 and the right arc plate 223 shrink inward and tightly adhere to the patient's arm, then the soft surface of the right end of the magic sticky tape 225 is stuck to the thorn surface of the magic sticky tape 225 to fix the length of the magic sticky tape 225, so that the device is fixed on the patient's arm, which is convenient to wear and convenient for the patient to adjust the position of the device on the patient's arm, and has good practicability.

[0030] The contents not described in detail in the specification are all the prior art known by the person skilled in the art, and the model parameters of the electric appliances are not specifically limited, and the conventional equipment can be used.

[0031] In use, the user inserts the patient's arm between the left arc plate 221 and the magic tape 225, then tightens the magic tape 225 to make the arc plate 222 and the right arc plate 223 inwardly contract and tightly adhere to the patient's arm, then sticks the soft surface at the right end of the magic tape 225 to the thorn surface of the magic tape 225 to fix the length of the magic tape 225, fixes the device on the patient's arm, then pulls the right clamp block 213 away from the left clamp block 211, then places the dialysis catheter on the inner side of the left clamp block 211, then releases the right clamp block 213, at this time the spring 2115 will drive the sliding block 218 to move left, and the sliding block 218 will drive the connecting frame 215 to move left, the dialysis catheter is positioned by the left clamp block 211, the movable plate 2111 is driven to lower the pressing block 2112 by rotating the adjusting screw 216 through the limiting plate 219, when the pressing block 2112 adheres to the top surface of the mounting plate 217, the adjusting screw 216 is stopped rotating, the connecting frame 215 is fixed, the position of the dialysis catheter is fixed, and the fixed dialysis catheter can be adjusted at multiple angles through the universal hose 1.

[0032] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for adjustable fixing of a hemodialysis catheter, comprising a universal hose (1), characterized in that: The outer side of the universal hose (1) is provided with a fixing mechanism (2) for conveniently adjusting and fixing the dialysis catheter, the fixing mechanism (2) comprises: A positioning device (21) is arranged at the top end of the universal hose (1) for fixing the position of the dialysis catheter, the positioning device (21) comprises a mounting plate (217) fixedly mounted at the top end of the universal hose (1), a connecting block (2116) is fixedly mounted on the top surface of the left side of the mounting plate (217), a left clamping block (211) is fixedly mounted on the right side of the connecting block (2116), first notches (212) are arranged on the top surface and the bottom surface of the left clamping block (211), a sliding groove (2114) is arranged on the top surface of the mounting plate (217), a sliding block (218) is slidably mounted in the sliding groove (2114), a connecting frame (215) is fixedly mounted on the top surface of the sliding block (218), a right clamping block (213) is fixedly mounted on the left side of the connecting frame (215), second notches (214) are arranged on the top surface and the bottom surface of the right clamping block (213), a driving assembly is arranged in the sliding groove (2114) for driving the sliding block (218) to move, and a limiting assembly is arranged on the right side of the connecting frame (215) for fixing the position of the connecting frame (215). A connecting assembly (22) is arranged at the bottom end of the universal hose (1) for connecting the device with the arm of the patient.

2. A tunable securement device for a hemodialysis catheter according to claim 1, wherein: The driving assembly comprises a limiting rod (2113) fixedly mounted in the sliding groove (2114), a spring (2115) movably mounted on the outer side of the limiting rod (2113), the left end of the limiting rod (2113) movably penetrates through the right side of the sliding block (218) and is fixedly mounted on the left side of the sliding groove (2114), the left end of the spring (2115) is tightly attached to the right side of the sliding block (218), the right end of the spring (2115) is fixedly mounted on the right side of the sliding groove (2114), the left side of the right clamping block (213) movably penetrates through the inside of the first notch (212) and is tightly attached to the inside of the left clamping block (211), and the right side of the left clamping block (211) movably penetrates through the inside of the second notch (214) and is tightly attached to the inside of the right clamping block (213).

3. The adjustable securement device of claim 1, wherein: The limiting assembly comprises a connecting plate (2110) fixedly mounted on the right side of the connecting frame (215), an adjusting screw rod (216) threadedly mounted on the top surface of the connecting plate (2110), a movable plate (2111) movably mounted on the bottom end of the adjusting screw rod (216), limiting plates (219) fixedly mounted on the front and rear sides of the top surface of the movable plate (2111), and pressing blocks (2112) fixedly mounted on the front and rear sides of the bottom surface of the movable plate (2111).

4. A tunable securement device for a hemodialysis catheter according to claim 3, wherein: The bottom end of the adjusting screw rod (216) threadedly penetrates through the top surface of the connecting plate (2110) and is movably mounted on the top surface of the movable plate (2111), and the top surface of the limiting plate (219) movably penetrates through the bottom surface of the connecting plate (2110) and extends to the top surface of the connecting plate (2110).

5. The adjustable securement device of claim 1, wherein: The connecting assembly (22) comprises a left arc plate (221) fixedly installed at the bottom end of the universal hose (1), the left side of the left arc plate (221) is movably hinged with an arc plate (222), the bottom surface of the arc plate (222) is fixedly installed with a magic sticky tape (225), and the right side of the left arc plate (221) is movably hinged with a right arc plate (223), and the left side of the right arc plate (223) is provided with a connecting groove (224).

6. A tunable securement device for a hemodialysis catheter according to claim 5, wherein: The right side of the connecting groove (224) penetrates through the left side of the right arc plate (223) and extends to the right side of the right arc plate (223), the right side of the magic sticky tape (225) movably penetrates through the inside of the connecting groove (224) and pulls the magic sticky tape (225) in the opposite direction to bond the soft surface of the magic sticky tape (225) to the hook surface of the magic sticky tape (225).

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