Hemodialysis tube fixing protective sleeve device

By designing a hemodialysis catheter fixing and protective sleeve device, the problem of hemodialysis catheter detachment was solved by utilizing an S-shaped structure and buffer components, achieving stable fixation and improved durability of the hemodialysis catheter.

CN223453591UActive Publication Date: 2025-10-21CHONGQING MEDICAL UNIVERSITY AFFILIATED THIRD HOSPITAL(FANGDA HOSPITAL)
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Patent Information

Application Number
CN202422546330.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-10-21
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

Traditional methods of securing hemodialysis catheters with medical tape can easily cause the catheter to detach from the puncture site on the patient's forearm during accidental contact or pulling, resulting in secondary injury and affecting the hemodialysis process.

Method used

A hemodialysis catheter fixing and protective sleeve device is designed, including components such as a base, mounting plate, guide block and strap. By wrapping the hemodialysis catheter around the guide block to form an S-shape, the elastic support and flexible sleeve buffer the tension and prevent the hemodialysis catheter from falling off.

Benefits of technology

It effectively prevents the hemodialysis catheter from coming off the patient's arm in case of accidental contact or pulling, reduces friction damage, and improves the durability and safety of the hemodialysis catheter.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a hemodialysis tube fixing protective sleeve device which comprises a base used for supporting the arm of a patient, a mounting plate is arranged on one side of the base, two mounting cavities are formed in the two ends of the mounting plate respectively, and two connecting openings penetrating through the mounting plate are formed in the two sides of each mounting cavity respectively. Two guide blocks are arranged in the mounting cavity, the two guide blocks are located on the two sides of the mounting cavity respectively, the guide blocks are in sliding fit with the mounting cavity, and the two guide blocks can move in the opposite directions. A part of the hemodialysis tube bypasses the two guide blocks to form the S shape, when any end of the hemodialysis tube is pulled, the bent part of the hemodialysis tube is released to increase the length of the hemodialysis tube outside the mounting plate so as to cope with the pulling force borne by the hemodialysis tube, and then the hemodialysis tube is not prone to falling off from the puncture part of the arm of a patient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical auxiliary device technical field, concretely relates to a hemodialysis tube fixed protective sheath device. BACKGROUND

[0002] Hemodialysis is a kind of medical treatment method that uses special catheter to extract the blood in human body, then filters through external equipment, and re-enters the harmful components in the blood, in the process, the catheter of blood circulation is called hemodialysis tube, and the best position of hemodialysis is the forearm of patient.

[0003] During hemodialysis, the hemodialysis tube needs to be fixed in position to prevent falling off, and the traditional hemodialysis tube is usually adhered to the skin surface of the patient by medical tape to achieve fixation. However, the following safety hazards exist when the hemodialysis tube is fixed by medical tape only:

[0004] After the dialyzer is accidentally touched and displaced or the hemodialysis tube is pulled due to accidental touch, the hemodialysis tube will move, and at this time, the hemodialysis tube is easy to move too far from the puncture site of the patient's forearm, causing secondary injury to the patient and affecting hemodialysis. SUMMARY

[0005] Therefore, the purpose of the utility model is to provide a hemodialysis tube fixed protective sheath device to solve the problem that in the prior art, the hemodialysis tube is only fixed on the skin of the patient by medical tape, and if the dialyzer moves or pulls the hemodialysis tube due to accidental touch, the hemodialysis tube is easy to move away from the puncture site of the patient's forearm, causing secondary injury to the patient and affecting hemodialysis.

[0006] The utility model realizes the following technical solutions:

[0007] A hemodialysis tube fixed protective sheath device includes a base for supporting the patient's arm, one side of the base is provided with a mounting plate, two mounting cavities are respectively arranged at both ends of the mounting plate, two connection openings are arranged on both sides of the two mounting cavities and penetrate through the mounting plate;

[0008] Two guide blocks are arranged in the mounting cavities, the two guide blocks are respectively located on both sides of the mounting cavities, and the guide blocks are in sliding cooperation with the mounting cavities, and the two guide blocks can move in opposite directions.

[0009] Further, the bottom surfaces of the two sides of the mounting cavities are oppositely provided with two sliding grooves, the bottom surfaces of the two guide blocks are respectively provided with two sliding blocks in sliding cooperation with the two sliding grooves, and two elastic supporting members are respectively arranged in the two sliding grooves, and the opposite ends of the two elastic supporting members are respectively abutted with the two sliding blocks.

[0010] Further, the sliding groove is an arc-shaped groove, and the elastic supporting member is in a curved shape and is installed in the sliding groove, and the guide block rotates around the center point of the installation cavity.

[0011] Further, opposite sides of the sliding groove are respectively provided with two limiting grooves extending along the length direction of the sliding groove, and the sliding block is provided with two limiting blocks respectively located in the two limiting grooves.

[0012] Further, the bottom surface of the guide block is rotationally matched with the top surface of the sliding block, and the outer surface of the guide block is provided with a flexible sleeve layer.

[0013] Further, the mounting plate comprises an upper plate body and a lower plate body, one side of the lower plate body is connected with the base, the top surface of the lower plate body is provided with a threaded rod, the threaded rod penetrates through the upper plate body, and the threaded rod is threadedly matched with a locking nut.

[0014] Further, the top surface of the lower plate body is further provided with a plurality of insertion rods, and the upper plate body is provided with a plurality of insertion holes corresponding to the plurality of insertion rods.

[0015] Further, the base is provided with a binding belt and a fixing ring at both ends, the binding belt and the fixing ring are respectively located at both sides of the base, one end of the binding belt is fixedly connected with the base, and the other end can pass through the fixing ring.

[0016] Further, one side of one end of the binding belt is provided with a magic son patch, and a magic mother patch is arranged at the central part, and the magic son patch can be adhered to the magic mother patch through the bending of the binding belt.

[0017] Further, an inflatable pad is arranged on the inner wall of the base, the inflatable pad extends along the length direction of the base, and a plurality of protruding parts are arranged on the inflatable pad.

[0018] The beneficial effects of the utility model lie in:

[0019] The blood dialysis tube fixing protection sleeve device can release the bending part of the blood dialysis tube to increase the length of the blood dialysis tube outside the mounting plate when any end of the blood dialysis tube is subjected to a pulling force, so as to cope with the pulling force of the blood dialysis tube, and the blood dialysis tube is not easy to fall off from the puncture part of the patient's arm.

[0020] The other advantages, objects and features of the utility model will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the utility model. The objects and other advantages of the utility model can be realized and obtained through the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view (first visual angle) of the utility model.

[0022] Figure 2 is a three-dimensional structural schematic view (second visual angle) of the utility model;

[0023] Figure 3 is a structural schematic view of the upper plate body and the lower plate body in a disassembled state;

[0024] Figure 4 is a structural schematic view of the lower plate body.

[0025] In the drawings:

[0026] 1, base; 2, mounting plate; 201, upper plate body; 202, lower plate body; 3, mounting cavity; 301, connecting port; 4, guide block; 401, sliding block; 402, limiting block; 5, sliding slot; 501, elastic supporting piece; 6, threaded rod; 601, locking nut; 7, insertion rod; 701, insertion hole; 8, bandage; 801, fixing ring; 9, inflatable pad. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0029] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the above description of the utility model, it needs to be explained that the terms "one side", "the other side" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the term "same" and the like do not mean that the components must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the components is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0032] Please refer to Figures 1-4 The utility model provides a technical scheme: a hemodialysis tube fixing protection sleeve device, including the base 1 for supporting the patient's arm, one side of base 1 is provided with mounting plate 2, two mounting cavities 3 are arranged in the two ends of mounting plate 2 respectively, two connection ports 301 that penetrate mounting plate 2 are arranged on the both sides of two mounting cavities 3;

[0033] Two guide blocks 4 are arranged in the mounting cavity 3, two guide blocks 4 are located on the two sides of mounting cavity 3 respectively, and guide block 4 is in sliding fit with mounting cavity 3, and two guide blocks 4 can move in opposite directions.

[0034] Among them, the top surface of base 1 is provided with a U-shaped groove for the patient to place the arm, and the connection port 301 of one side of mounting cavity 3 is communicated with the U-shaped groove, so that the hemodialysis tube can pass through the mounting cavity 3 and the connection port 301 into the U-shaped groove.

[0035] Two mounting cavities 3 are used for passing through the blood drawing tube and the blood transfusion tube respectively.

[0036] Specific use, medical staff passes through the connection port 301 of one side of mounting cavity 3 to deliver one end of hemodialysis tube into mounting cavity 3, and makes hemodialysis tube pass around two guide blocks 4 to make hemodialysis tube present S shape (such as Figure 4 The end part is delivered into the U-shaped groove through the connection port 301 of the other side of mounting cavity 3 and acts on the blood of the patient's arm.

[0037] The S-shaped hemodialysis tube comprises two straight segments and a curved segment between the two straight segments, wherein the two straight segments are respectively located at the two connecting ports 301. When an accidental collision causes the dialyzer to move away from the patient or someone collides with the hemodialysis tube between the dialyzer and the patient, the hemodialysis tube is pulled to move away from the patient, the straight segment close to the dialyzer pulls the curved segment, and the guide block 4 is driven to move towards the other guide block 4 under the pulling force, thereby releasing part of the length of the curved segment to be straightened into a straight segment, so as to provide a buffer and prevent the hemodialysis tube from being directly separated from the puncture site of the patient's arm after being pulled.

[0038] As described above, when the patient's arm moves, if the length of the straight segment close to the arm is not enough, the straight segment will also pull the curved segment and drive the guide block 4 to move, thereby releasing part of the length of the curved segment to provide the patient's arm with a moving space.

[0039] That is, by bending part of the hemodialysis tube to form an S shape around the two guide blocks 4, when the hemodialysis tube is pulled at either end, the length of the curved portion of the hemodialysis tube can be released to increase the length of the hemodialysis tube outside the mounting plate 2 to cope with the pulling force on the hemodialysis tube, thereby preventing the hemodialysis tube from being easily separated from the puncture site of the patient's arm.

[0040] In this embodiment, the bottom surfaces of the two sides of the mounting cavity 3 are oppositely provided with two sliding grooves 5, the bottom surfaces of the two guide blocks 4 are respectively provided with two sliding blocks 401 that are in sliding cooperation with the two sliding grooves 5, and two elastic supporting members 501 are respectively arranged in the two sliding grooves 5, and the opposite ends of the two elastic supporting members 501 are respectively abutted against the two sliding blocks 401.

[0041] In this embodiment, when the two elastic supporting members 501 are naturally stretched, the two guide blocks 4 are pushed in a direction away from each other, and in this state, if the hemodialysis tube is affected to move towards the patient, the pulling force on the hemodialysis tube can be reduced by the elastic force of the elastic supporting members 501.

[0042] In actual use, when the guide block 4 is pushed by the hemodialysis tube, the sliding block 401 moves synchronously and in the same direction with the guide block 4, and the sliding block 401 gradually presses the elastic supporting member 501.

[0043] In this embodiment, the sliding groove 5 is an arc-shaped groove, the elastic supporting member 501 is arranged in the sliding groove 5 in a curved shape, and the guide block 4 rotates around the center point of the mounting cavity 3 as an axis.

[0044] In this embodiment, the two opposite sides of the sliding groove 5 are respectively provided with two limiting grooves extending along the length direction of the sliding groove 5, and the two sides of the sliding block 401 are respectively provided with two limiting blocks 402 located in the two limiting grooves.

[0045] Wherein, through the cooperation of the limiting groove and the limiting block 402, the sliding block 401 will not naturally fall out of the sliding groove 5, and the sliding block 401 and the guide block 4 are supported.

[0046] In specific use, when the sliding block 401 slides along the sliding groove 5, the limiting block 402 is also located in the limiting groove and slides synchronously and in the same direction.

[0047] In the embodiment, the bottom surface of the guide block 4 is rotationally connected with the top surface of the sliding block 401, and the outer surface of the guide block 4 is provided with a flexible sleeve layer.

[0048] In specific use, when the hemodialysis tube is moved under tension, the outer surface of the hemodialysis tube will be in contact with the inner surface of the guide block 4. Through the rotation of the guide block 4, the friction on the outer surface of the hemodialysis tube can be reduced, thereby improving the use durability of the hemodialysis tube. At the same time, the outer surface of the hemodialysis tube is in contact with the flexible sleeve layer, which further reduces the friction on the hemodialysis tube. Since the flexible sleeve layer is flexible and is easily deformed under pressure, the flexible sleeve layer is not easy to crush the hemodialysis tube when the hemodialysis tube is straightened under tension.

[0049] The flexible sleeve layer can be made of sponge.

[0050] In the embodiment, the mounting plate 2 comprises an upper plate body 201 and a lower plate body 202. One side of the lower plate body 202 is connected with the base 1. The top surface of the lower plate body 202 is provided with a threaded rod 6. The threaded rod 6 penetrates the upper plate body 201. The threaded rod 6 is threadedly connected with a locking nut 601.

[0051] The upper plate body 201 and the lower plate body 202 are connected in an up-down manner to form the mounting plate 2. The two can be fixed by the threaded rod 6 and the locking nut 601.

[0052] In specific use, the medical staff can remove the upper plate body 201. After removal, the guide block 4 mounted on the lower plate body 202 is exposed. The hemodialysis tube is wound around the guide block 4 to form an S-shaped hemodialysis tube. Then, the upper plate body 201 is placed on the top surface of the lower plate body 202, and the hemodialysis tube is positioned up and down by the threaded rod 6 and the locking nut 601.

[0053] In the embodiment, the top surface of the lower plate body 202 is further provided with a plurality of insertion rods 7. The upper plate body 201 is provided with a plurality of insertion holes 701 corresponding to the plurality of insertion rods 7.

[0054] In specific use, when the upper plate body 201 is placed on the lower plate body 202, the insertion rod 7 and the insertion hole 701 need to be aligned, thereby increasing the fixing points between the upper plate body 201 and the lower plate body 202, so that the upper plate body 201 will not be deviated.

[0055] In the embodiment, the base 1 is provided with a bandage 8 and a fixing ring 801 at both ends, the bandage 8 and the fixing ring 801 are respectively located at both sides of the base 1, one end of the bandage 8 is fixedly connected with the base 1, and the other end can pass through the fixing ring 801.

[0056] In the embodiment, the base 1 is made of a flexible material, which can be made of rubber.

[0057] In specific use, the patient places the arm in the U-shaped groove, and the medical staff tightens the bandage 8 and passes it through the fixing ring 801, so as to shrink the opposite side walls of the base 1, and then clamps the arm of the patient, so as to fix the arm of the patient on the base 1.

[0058] In the embodiment, one side of one end of the bandage 8 is provided with a magic son sticker, and a magic mother sticker is arranged in the middle part, and the magic son sticker can be bent and adhered to the magic mother sticker through the bandage 8.

[0059] In specific use, the medical staff passes one end of the bandage 8 through the fixing ring 801, and then bends one end of the bandage 8 passing through the fixing ring 801, so as to make the magic son sticker and the magic mother sticker adhere to each other, so as to fix the tight state of the bandage 8 through the magic son sticker and the magic mother sticker.

[0060] In the embodiment, an inflatable pad 9 is arranged on the inner wall of the base 1, the inflatable pad 9 extends along the length direction of the base 1, and a plurality of protruding parts are arranged on the inflatable pad 9.

[0061] In the embodiment, an inflation port is arranged on the inflatable pad 9, and the medical staff can communicate with the inflation port through an inflation gun, and inflate the inflatable pad 9 through the inflation gun.

[0062] In specific use, the patient places the arm on the inflatable pad 9, and then inflates the inflatable pad 9 through the inflation gun, which can improve the comfort of the arm of the patient through the inflatable pad 9 and the protruding parts on the inflatable pad 9, and on the other hand, the arm of the patient can be lifted by inflating appropriate amount of air according to the thickness of the arm of the patient, so as to cooperate with the bandage 8 to fix the arm of the patient.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A hemodialysis tube fixing and protecting sleeve device comprising a base (1) for supporting a patient's arm, characterized in that: One side of the base (1) is provided with a mounting plate (2), two mounting cavities (3) are respectively arranged in the two ends of the mounting plate (2), and two connecting openings (301) penetrating through the mounting plate (2) are arranged on the two sides of the two mounting cavities (3). Two guide blocks (4) are arranged in the mounting cavities (3), the two guide blocks (4) are respectively located on the two sides of the mounting cavities (3), and the guide blocks (4) are in sliding fit with the mounting cavities (3), and the two guide blocks (4) can move in opposite directions.

2. The hemodialysis tube fixing protective sleeve device according to claim 1, characterized in that: Two sliding grooves (5) are arranged on the bottom surfaces of the two sides of the mounting cavities (3), two sliding blocks (401) in sliding fit with the two sliding grooves (5) are respectively arranged on the bottom surfaces of the two guide blocks (4), and two elastic supporting members (501) are respectively arranged in the two sliding grooves (5), and the opposite ends of the two elastic supporting members (501) are respectively in abutment with the two sliding blocks (401).

3. The hemodialysis tube fixing protective sleeve device according to claim 2, characterized in that: The sliding grooves (5) are arc-shaped grooves, the elastic supporting members (501) are in a curved shape and are arranged in the sliding grooves (5), and the guide blocks (4) rotate around the center point of the mounting cavities (3) as the axis.

4. The hemodialysis tube fixing protective sleeve device according to claim 2, characterized in that: Two limiting grooves extending along the length direction of the sliding grooves (5) are respectively arranged on the opposite sides of the sliding grooves (5), and two limiting blocks (402) are arranged on the two sides of the sliding blocks (401) and are respectively located in the two limiting grooves.

5. The hemodialysis tube fixing protective sleeve device according to any one of claims 1-3, characterized in that: The bottom surface of the guide block (4) is in rotary fit with the top surface of the sliding block (401), and a flexible sleeve layer is arranged on the outer surface of the guide block (4).

6. The hemodialysis tube fixing protective sleeve device according to claim 1, characterized in that: The mounting plate (2) comprises an upper plate body (201) and a lower plate body (202), one side of the lower plate body (202) is connected with the base (1), the top surface of the lower plate body (202) is provided with a threaded rod (6), the threaded rod (6) penetrates through the upper plate body (201), and the threaded rod (6) is in threaded fit with a locking nut (601).

7. The hemodialysis tube fixing protective sleeve device according to claim 6, characterized in that: A plurality of insertion rods (7) are arranged on the top surface of the lower plate body (202), and a plurality of insertion holes (701) corresponding to the insertion rods (7) are arranged on the upper plate body (201).

8. The hemodialysis tube fixing protective sleeve device according to claim 1, characterized in that: Belt straps (8) and fixing rings (801) are arranged at the two ends of the base (1), the belt straps (8) and the fixing rings (801) are respectively located on the two sides of the base (1), one end of the belt strap (8) is fixedly connected with the base (1), and the other end can penetrate through the fixing ring (801).

9. The hemodialysis tube fixing protective sleeve device according to claim 8, characterized in that: One side of one end of the belt strap (8) is provided with a magic son patch, and a magic mother patch is arranged in the middle part, and the magic son patch can be adhered to the magic mother patch through the bending of the belt strap (8).

10. The hemodialysis tube fixing protective sleeve device according to claim 9, characterized in that: An inflatable pad (9) is arranged on the inner wall of the base (1), the inflatable pad (9) extends along the length direction of the base (1), and a plurality of protruding parts are arranged on the inflatable pad (9).