Blood seepage prevention device for hemodialysis

By designing an adjustable-angle hemodialysis device, using restraint clamps and springs for fixation, the problem of traditional devices being unable to adjust the upper limb position was solved, achieving stable fixation and improved comfort during the dialysis process.

CN223914290UActive Publication Date: 2026-02-17BEIJING FRIENDSHIP HOSPITAL CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202423078971.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2026-02-17
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Traditional hemodialysis devices lack flexibility and cannot effectively adjust the position or angle of the patient's upper limbs, leading to stiffness and discomfort, affecting dialysis results and patient compliance, and increasing the nursing burden.

Method used

A blood-proof device comprising a first platform and a second platform was designed. The upper limb can be adjusted slightly by rotating the connecting plate. Combined with restraint clamps and spring fixation, the stability and comfort of the upper limb are ensured.

Benefits of technology

It achieves stable fixation of the upper limbs during dialysis, avoids bleeding, relieves stiffness and discomfort, and improves dialysis comfort and blood flow stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a blood seepage prevention device for hemodialysis, which comprises a first platform and a second platform, the top of the first platform and the top of the second platform are respectively provided with a groove, and the bottom of the first platform and the bottom of the second platform are hinged with a connecting plate through a rotating shaft. The top of the first platform and the top of the second platform are each provided with a binding hoop, and the bottom of the first platform and the bottom of the second platform are each symmetrically provided with two fixing cylinders. The upper limbs of a dialysis patient can be conveniently placed in the grooves in the tops of the first platform and the second platform, the constraint hoops are used for limiting the shaking range of the upper limbs, puncture errhysis is avoided, and the first platform and the second platform are hinged to the connecting plate through the rotating shafts, so that the upper limbs of the dialysis patient can be subjected to small-amplitude angle adjustment, and stiffness discomfort is relieved; the blood flow stability is ensured, and the dialysis comfort is improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a blood leakage prevention device for hemodialysis. Background Technology

[0002] Hemodialysis is a common alternative therapy for treating chronic renal failure. It removes metabolic waste, toxins, and excess water from the blood, maintaining the body's electrolyte and acid-base balance. The process involves using a dialysis machine to draw the patient's blood out of the body, where it exchanges substances with dialysate through a semi-permeable membrane within the dialyzer, and then the purified blood is returned to the body. Hemodialysis is typically suitable for patients with uremia or severe kidney damage.

[0003] However, during routine hemodialysis, patients need to maintain a specific posture for a long time, which can easily cause stiffness, numbness and other discomfort, and may even lead to poor blood flow. Although traditional upper limb fixation devices can prevent the upper limb from moving and shaking, causing bleeding at the puncture site, such fixation devices lack flexibility and cannot effectively adjust the position or angle of the patient's upper limb. Patients may find it difficult to relieve discomfort during dialysis, which may affect their cooperation and dialysis effect, and may even increase the nursing burden on medical staff. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this utility model is to provide a blood-proof device for hemodialysis, which can bind the upper limb of the dialysis patient in the groove and the binding clamp. By rotating the connecting plate at the bottom of the first platform and the second platform, the upper limb of the dialysis patient can be adjusted at a small angle to relieve stiffness and discomfort.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a blood leakage prevention device for hemodialysis, comprising a first platform and a second platform, wherein the top of the first platform and the second platform are provided with grooves, the bottom of the first platform and the second platform are hinged to a connecting plate by a pivot, the top of the first platform and the second platform are each equipped with a restraining clamp, and the bottom of the first platform and the second platform are each symmetrically equipped with two fixing cylinders, each pair of fixing cylinders located on the same axis having a spring installed inside.

[0007] Preferably, a telescopic hose is installed at one end of each pair of fixed cylinders located on the same axis, and the spring is located inside the telescopic hose.

[0008] Preferably, the end of the restraint clamp is penetrated by a bolt.

[0009] Preferably, a fixing plate is fixedly connected to both sides of the first platform, and a threaded hole is provided on one side of the fixing plate.

[0010] Preferably, a limit ring is fixedly connected to the inner wall of the fixed cylinder.

[0011] Preferably, the inner walls of the grooves of both the first platform and the second platform are fixedly connected with soft pads.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the grooves at the top of the first platform and the second platform can facilitate the placement of the dialysis patient's upper limbs. The restraint clamps limit the range of movement of the upper limbs and prevent puncture bleeding. The first platform and the second platform are hinged to the connecting plate through a rotating shaft, which allows the dialysis patient's upper limbs to be adjusted at a small angle, relieve stiffness and discomfort, ensure stable blood flow, and improve dialysis comfort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the anti-leakage device for hemodialysis according to an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the anti-leakage device for hemodialysis according to an embodiment of the present invention from another perspective;

[0015] Figure 3 This is a cross-sectional structural diagram of the connecting plate in the anti-leakage device for hemodialysis according to an embodiment of the present utility model;

[0016] Figure 4 This is a cross-sectional structural diagram of the fixed cylinder and the telescopic hose in the anti-leakage device for hemodialysis according to an embodiment of the present invention.

[0017] In the diagram: 1. First platform; 2. Second platform; 3. Groove; 4. Restraint clamp; 5. Soft pad; 7. Fixing plate; 8. Threaded hole; 9. Telescopic hose; 10. Bolt; 11. Fixing cylinder; 12. Connecting plate; 13. Rotating shaft; 14. Spring; 15. Limiting ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1The present invention provides an anti-leakage device for hemodialysis, comprising: a first platform 1 and a second platform 2.

[0020] Among them, such as Figures 1-3 As shown, the top of the first platform 1 and the second platform 2 are both provided with grooves 3. The bottom of the first platform 1 and the second platform 2 are hinged to the connecting plate 12 through the pivot 13. The top of the first platform 1 and the second platform 2 are both equipped with restraint clamps 4. The end of the restraint clamp 4 is penetrated by a bolt 10. One end of the restraint clamp 4 can rotate and can be fixed in position by the bolt 10 after passing around the upper limb of the dialysis patient.

[0021] During use, the dialysis patient's upper limb is placed in the groove 3 at the top of the first platform 1 and the second platform 2 to ensure a stable position. The restraint clamp 4 is used to restrict the position of the upper limb to prevent the dialysis patient's upper limb from moving freely and causing bleeding at the puncture site.

[0022] Furthermore, refer to Figure 1 The inner walls of the grooves 3 of the first platform 1 and the second platform 2 are both fixedly connected with soft pads 5, which can increase the comfort of dialysis patients when their upper limbs are placed in the grooves 3.

[0023] In this embodiment, as Figures 1-4 As shown, two fixed cylinders 11 are symmetrically installed at the bottom of the first platform 1 and the second platform 2. A spring 14 is installed inside each pair of fixed cylinders 11 located on the same axis. A telescopic hose 9 is installed at the opposite end of each pair of fixed cylinders 11 located on the same axis. The spring 14 is located inside the telescopic hose 9. The telescopic hose 9 can deform as the spring 14 bends and prevent the spring 14 from being exposed to the outside.

[0024] In use, the first platform 1 and the second platform 2 are hinged to the connecting plate 12 via the pivot 13. When the dialysis patient's upper limb is uncomfortable due to maintaining a certain posture for a long time, the platform can be rotated at a certain angle to relieve the stiffness and discomfort of the upper limb. The two fixing cylinders 11 at the bottom of the first platform 1 and the second platform 2 are equipped with springs 14 to provide the necessary elasticity and ensure that the dialysis patient can automatically correct the position of the upper limb after moving the first platform 1 or the second platform 2.

[0025] Furthermore, refer to Figure 4 A limiting ring 15 is fixedly connected to the inner wall of the fixed cylinder 11, and the limiting ring 15 can prevent one end of the spring 14 from moving out of the fixed cylinder 11.

[0026] like Figure 1 and Figure 2 As shown, a fixing plate 7 is fixedly connected to both sides of the first platform 1. A threaded hole 8 is provided on one side of the fixing plate 7. The first platform 1 can be fixed to one side of the bed by using the fixing plate 7, thereby fixing the position of the first platform 1.

[0027] Based on the above technical solution, the working steps of this solution are summarized as follows: When using this utility model, the dialysis patient's upper limb is placed in the groove 3 at the top of the first platform 1 and the second platform 2 to ensure stable position. The position of the upper limb is restricted by the restraint clamp 4 to prevent the dialysis patient's upper limb from moving arbitrarily and causing bleeding at the puncture site.

[0028] The first platform 1 and the second platform 2 are hinged to the connecting plate 12 via a rotating shaft 13. When the dialysis patient's upper limb is uncomfortable due to maintaining a certain posture for a long time, the platform can be rotated at a certain angle to relieve the stiffness and discomfort of the upper limb. The two fixed cylinders 11 at the bottom of the first platform 1 and the second platform 2 are equipped with springs 14 to provide the necessary elasticity and ensure that the dialysis patient can automatically correct the position of the upper limb after moving the first platform 1 or the second platform 2. The device as a whole ensures the stability and safety of blood flow during dialysis, while improving the comfort of the dialysis patient's upper limb and avoiding stiffness and discomfort caused by maintaining a certain posture for a long time.

[0029] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blood leakage prevention device for hemodialysis, comprising a first platform (1) and a second platform (2), characterized in that: the top of the first platform (1) and the top of the second platform (2) are each provided with a groove (3), the bottom of the first platform (1) and the bottom of the second platform (2) are hingedly connected with a connecting plate (12) through a rotating shaft (13), the top of the first platform (1) and the top of the second platform (2) are each installed with a binding clamp (4), the bottom of the first platform (1) and the bottom of the second platform (2) are each symmetrically installed with two fixed cylinders (11), and every two fixed cylinders (11) located on the same axis are each internally installed with a spring (14).

2. The blood-permeation-preventing apparatus for hemodialysis according to claim 1, characterized by: The opposite end of every two fixed cylinders (11) located on the same axis is installed with an elastic hose (9), and the spring (14) is located inside the elastic hose (9).

3. The blood-permeation preventing apparatus for hemodialysis according to claim 1, characterized by: The end of the binding clamp (4) is penetrated by a bolt (10).

4. The blood-permeation preventing apparatus for hemodialysis according to claim 1, wherein: The two sides of the first platform (1) are each fixedly connected with a fixed plate (7), and one side of the fixed plate (7) is provided with a threaded hole (8).

5. The blood hemodialysis apparatus according to claim 1, wherein: The inner wall of the fixed cylinder (11) is fixedly connected with a limiting ring (15).

6. The blood hemodialysis apparatus according to claim 1, wherein: The inner wall of the groove (3) of the first platform (1) and the inner wall of the groove (3) of the second platform (2) are each fixedly connected with a soft pad (5).