Dual-purpose device for keeping limbs of dialysis patient warm

Abstract

The invention discloses a dialysis patient limb warm-keeping dual-purpose device, and particularly relates to the technical field of medical auxiliary instruments, the dialysis patient limb warm-keeping dual-purpose device comprises a limiting cylinder, a supporting connecting assembly is arranged on the limiting cylinder, the supporting connecting assembly comprises an outer wire cylinder arranged in the middle of the limiting cylinder, and a first connecting ring is fixedly arranged at one end of the outer wire cylinder. The limb of a patient is clamped in the mode that a first hinge rod and a tin foil heat insulation cover gather towards the axis of a limiting cylinder and an outer wire cylinder, the phenomenon that the limb of the patient displaces during dialysis can be effectively avoided, the device can adapt to limbs of different sizes, the adaptability of the device during use is improved, and the device is suitable for popularization and application. The outer sides of the limbs of a patient are heated in a wrapping mode through the tin foil thermal insulation covers, blood vessels are expanded easily through hot compress before dialysis, the blood flow can be increased, the limbs of the patient are exposed to medical staff for puncture operation through the adjusted tin foil thermal insulation covers, the use convenience of the device is improved, and the device is suitable for popularization and application. The function of synchronously heating, preserving heat and positioning the limbs of the patient is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and more specifically, to a dual-purpose device for keeping the limbs of dialysis patients warm. Background Art

[0002] Hemodialysis is the most commonly used renal replacement therapy for patients with acute renal failure and end-stage chronic renal failure. It can remove metabolic wastes, excessive water, and maintain electrolyte and acid-base balance in the body. Hemodialysis requires a reliable and repeatable circulatory access to be connected to a dialysis machine. After extracorporeal circulation, it is then transfused back into the body. Therefore, establishing a good vascular access is a prerequisite for hemodialysis. Currently, the commonly used vascular accesses mainly include autogenous arteriovenous fistulas, graft arteriovenous fistulas, and central venous catheters. Among them, autogenous arteriovenous fistulas are the first choice for hemodialysis patients due to their long service life, low infection rate, and few complications. It establishes a safe and long-term vascular access by directly suturing the patient's artery and vein through surgery. Since the patient's limb needs to be exposed for a long time during hemodialysis, the patient's arm is prone to getting cold and experiencing vasoconstriction problems, which in turn affect the adequacy of dialysis, resulting in insufficient ultrafiltration and incomplete toxin clearance, and ultimately reducing the survival rate of hemodialysis patients.

[0003] Among them, the patent with the publication number CN221998245U discloses a limb warming and fixing device for hemodialysis patients, including a device body. The device body includes a fixed base and a fixing mechanism. The fixing mechanism includes an upper arm fixing unit and a forearm fixing unit. The forearm fixing unit includes a first fixing component, a second fixing component, and a heating component.

[0004] When this structure is in use, through the stable fixation of the patient's limb, it can avoid the puncture needle from slipping or the blood vessel from being punctured when the patient moves the limb. It can apply hot compress to dilate blood vessels before dialysis and keep the limb warm during dialysis. However, this structure cannot achieve the functions of wrapping and positioning the patient's limb and keeping it warm during use, and it is not easy to adjust different puncture areas, and it is not convenient enough during use. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a dual-purpose device for keeping the limbs of dialysis patients warm, aiming to solve the problems raised in the above-mentioned background art.

[0006] The present invention provides the following technical solutions: A dual-purpose device for keeping the limbs of dialysis patients warm, including a limiting cylinder, and a support connection component is arranged on the limiting cylinder.

[0007] The support connection assembly includes an external thread cylinder arranged in the middle of the limiting cylinder. One end of the external thread cylinder is fixedly provided with a first connection ring. A plurality of first hinge rods with adjustable angles are hinged on the first connection ring. Angle-adjustable tin foil heat insulation covers are arranged on both sides of each first hinge rod;

[0008] A plurality of installation cavities are formed in the plurality of tin foil heat insulation covers, and heating resistors are embedded in each installation cavity. Electric heating wires for heating are arranged on the plurality of heating resistors. One end of the limiting cylinder is provided with a second connection ring, and a plurality of hinge seats are distributed on the outer sides of the second connection ring and the first connection ring. A second hinge rod is hinged on one side of the first hinge rod. First pins are rotatably connected to one ends of the second hinge rod and the first hinge rod. The first pin belonging to the first hinge rod extends to the hinge seat outside the first connection ring and is rotatably connected thereto. The first pin belonging to the second hinge rod extends to the hinge seat outside the second connection ring and is rotatably connected thereto;

[0009] It can be seen that in the above technical solution, when the first connection ring displaces, it can pull the second hinge rod to displace. The second hinge rod is forced to drive the first hinge rod to rotate along the axis point of the connection between the first hinge rod and the hinge seat outside the second connection ring, and then the angles of each first hinge rod and the tin foil heat insulation cover can be adjusted, which is easy to gather each first hinge rod and the tin foil heat insulation cover towards the axis of the limiting cylinder and the external thread cylinder. By clamping the patient's limb in the way that the first hinge rod and the tin foil heat insulation cover gather towards the axis of the limiting cylinder and the external thread cylinder, the phenomenon that the patient's limb displaces during dialysis can be effectively avoided, and it can also adapt to limbs of different sizes, improving the adaptability of the device during use;

[0010] Optionally, in a possible implementation manner, a second pin is inserted into the first hinge rod. Two ends of the second pin respectively extend to the corresponding tin foil heat insulation covers, and the tin foil heat insulation cover is rotatably connected to the second pin. An adaptation arc groove is formed on one side of the tin foil heat insulation cover. The vertical cross-sectional shape of the adaptation arc groove is set as an arc shape. One end of the limiting cylinder away from the second connection ring is rotatably connected with an internal thread ring. The internal thread ring is sleeved outside the external thread cylinder, and the internal thread ring is threadedly connected with the external thread cylinder. The plurality of tin foil heat insulation covers are all circumferentially distributed along the axis point of the limiting cylinder and the external thread cylinder, and the vertical cross-sectional shapes of the tin foil heat insulation covers are combined into a frustum shape;

[0011] It can be seen that in the above technical solution, the inner wire ring is threadedly connected to the outer wire tube, so that the inner wire ring can push the outer wire tube when it rotates, and the outer wire tube drives the first connecting ring to move when it is displaced, and the heating of the electric heating wire is controlled by the heating resistor, and the function of wrapping and heating the outside of the patient's limbs is realized through each tin foil insulation cover, which is easy to dilate blood vessels by hot compress before dialysis, and can increase blood flow, and the angle of the tin foil insulation cover on the outside of the first hinged rod can be adjusted through the second pin, so that the remaining tin foil insulation covers are easy to be set on the outside of the patient's limbs, and the adjusted tin foil insulation cover exposes the patient's limbs to medical staff for puncture operations, thereby improving the convenience of the device when in use.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention clamps the patient's limbs by converging the first hinged rod and the tin foil insulation cover toward the axis of the limiting tube and the outer wire tube, which can effectively prevent the patient's limbs from being displaced during dialysis, and can also adapt to limbs of different sizes, thereby improving the adaptability of the device during use;

[0014] 2. When the tin foil insulation cover is arranged on the outside of the patient's limbs, the heating resistor controls the heating of the electric heating wire, and each tin foil insulation cover realizes the function of wrapping and heating the outside of the patient's limbs, which is easy to apply heat to expand blood vessels before dialysis and increase blood flow;

[0015] 3. The present invention can also adjust the angle of the tin foil insulation cover outside the first hinged rod through the second latch, so that the remaining tin foil insulation cover is easily arranged outside the patient's limbs, and the adjusted tin foil insulation cover exposes the patient's limbs to medical personnel for puncture operations, thereby improving the convenience of the device when in use;

[0016] To summarize, through the corresponding coordinated use of various structures, the first hinged rod and the tin foil thermal insulation cover converge toward the axis of the limiting tube and the outer wire tube to clamp the patient's limbs, which can effectively prevent the patient's limbs from being displaced during dialysis, and can also adapt to limbs of different sizes, thereby improving the adaptability of the device during use. The tin foil thermal insulation covers can realize the function of wrapping and heating the outside of the patient's limbs, which is easy to dilate blood vessels by hot compress before dialysis and increase blood flow. The adjustable tin foil thermal insulation cover exposes the patient's limbs to medical staff for puncture operations, thereby improving the convenience of the device during use and realizing the functions of heating, keeping warm and positioning the patient's limbs simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings required for use in some embodiments. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams and do not limit the actual dimensions of the products involved in the embodiments of the present disclosure, the actual processes of the methods, the actual timings of the signals, etc.

[0018] Figure 1 This is the front view of the overall structure of the present invention.

[0019] Figure 2 This is the side view of the overall structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the limiting cylinder, external wire cylinder, internal wire ring, electric heating wire, first hinge rod and tin foil heat insulation cover of the present invention installed together.

[0021] Figure 4 This is a schematic diagram of the first hinge rod, tin foil heat insulation cover and second hinge rod of the present invention installed together.

[0022] Figure 5 This is a schematic diagram of the external wire cylinder, first connecting ring, second connecting ring, limiting cylinder and internal wire ring of the present invention.

[0023] Figure 6 This is a schematic diagram of the first hinge rod, tin foil heat insulation cover, heating resistor, electric heating wire and first plug of the present invention.

[0024] The reference numerals are: 1, limiting cylinder; 2, external wire cylinder; 3, first hinge rod; 4, tin foil heat insulation cover; 5, heating resistor; 6, electric heating wire; 7, first connecting ring; 8, second connecting ring; 9, second hinge rod; 10, first plug; 11, second plug; 12, internal wire ring; 13, installation cavity; 14, adaptation arc groove. Detailed implementation manners

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] As shown in the appended Figures 1-6The dialysis patient limb warming and dual-purpose device shown, through the support connection component provided on the limiting cylinder 1, and through the corresponding cooperation of each structure, the first hinge rod 3 and the tin foil heat insulation cover 4 clamp the patient's limb in a manner of converging towards the axes of the limiting cylinder 1 and the external thread cylinder 2, which can effectively avoid the phenomenon of limb displacement of the patient during dialysis, and can also adapt to limbs of different sizes, improving the adaptability of the device during use. The function of wrapping and heating the outside of the patient's limb is realized through each tin foil heat insulation cover 4, which is easy to apply hot compress to dilate blood vessels before dialysis, can increase blood flow, and the adjustable tin foil heat insulation cover 4 enables the patient's limb to be exposed for medical staff to perform puncture operations, improving the convenience of the device during use, and realizing the functions of heating and insulating the patient's limb and positioning simultaneously. The specific structure of the component is as follows;

[0027] The support connection component includes an external thread cylinder 2 arranged in the middle of the limiting cylinder 1. One end of the external thread cylinder 2 is fixedly provided with a first connection ring 7. A number of first hinge rods 3 with adjustable angles are hinged on the first connection ring 7, and tin foil heat insulation covers 4 with adjustable angles are arranged on both sides of each first hinge rod 3;

[0028] Installation cavities 13 are opened on a plurality of tin foil heat insulation covers 4, and heating resistors 5 are embedded in each installation cavity 13. Electric heating wires 6 for heating are arranged on a plurality of heating resistors 5. One end of the limiting cylinder 1 is provided with a second connection ring 8, and a number of hinge seats are distributed on the outer sides of the second connection ring 8 and the first connection ring 7. One side of the first hinge rod 3 is hinged with a second hinge rod 9. A first pin 10 is rotatably connected to one end of both the second hinge rod 9 and the first hinge rod 3. The first pin 10 belonging to the first hinge rod 3 extends to the hinge seat outside the first connection ring 7 and is rotatably connected thereto. The first pin 10 belonging to the second hinge rod 9 extends to the hinge seat outside the second connection ring 8 and is rotatably connected thereto;

[0029] A second pin 11 is inserted into the first hinge rod 3, and both ends of the second pin 11 extend to the corresponding tin foil heat insulation covers 4 respectively, and the tin foil heat insulation cover 4 is rotatably connected to the second pin 11. An adaptation arc groove 14 is opened on one side of the tin foil heat insulation cover 4, and the vertical cross-sectional shape of the adaptation arc groove 14 is set as an arc shape. One end of the limiting cylinder 1 far from the second connection ring 8 is rotatably connected with an internal thread ring 12. The internal thread ring 12 is sleeved on the outside of the external thread cylinder 2, and the internal thread ring 12 is threadedly connected with the external thread cylinder 2. A plurality of tin foil heat insulation covers 4 are all circumferentially distributed along the axis points of the limiting cylinder 1 and the external thread cylinder 2, and the vertical cross-sectional shapes of each tin foil heat insulation cover 4 are combined into a frustum shape.

[0030] The specific working principle is as follows. When in use, the user inserts the limb into the outer wire cylinder 2. The outer wire cylinder 2 first positions the patient's limb. By rotating the inner wire ring 12, which is threadedly connected to the outer wire cylinder 2, when the inner wire ring 12 rotates, it can push the outer wire cylinder 2. When the outer wire cylinder 2 displaces, it drives the first connecting ring 7 to displace. Then, each hinge seat on the first connecting ring 7 displaces. When the first connecting ring 7 displaces, it can pull the second hinge rod 9 to displace. The second hinge rod 9 is stressed to drive the first hinge rod 3 to rotate along the axis point where the first hinge rod 3 is hinged to the hinge seat on the outer side of the second connecting ring 8. Then, the angles of each first hinge rod 3 and the tin foil heat insulation cover 4 can be adjusted, and it is easy to gather each first hinge rod 3 and the tin foil heat insulation cover 4 towards the axes of the limiting cylinder 1 and the outer wire cylinder 2.

[0031] By clamping the patient's limb in the way that the first hinge rod 3 and the tin foil heat insulation cover 4 gather towards the axes of the limiting cylinder 1 and the outer wire cylinder 2, it can effectively avoid the phenomenon of the patient's limb displacement during dialysis, and can also adapt to limbs of different sizes, improving the adaptability of the device during use.

[0032] And when the tin foil heat insulation cover 4 covers the outside of the patient's limb, the heating resistance 5 is used to control the heating of the electric heating wire 6, and through each tin foil heat insulation cover 4, the function of wrapping and heating the outside of the patient's limb is realized, which is easy to apply hot compress to dilate blood vessels before dialysis and can increase blood flow.

[0033] Moreover, the angle of the tin foil heat insulation cover 4 outside the first hinge rod 3 can be adjusted through the second pin 11, which is easy for the remaining tin foil heat insulation covers 4 to cover the outside of the patient's limb, while the adjusted tin foil heat insulation cover 4 exposes the patient's limb for medical staff to perform puncture operations, improving the convenience of the device during use.

[0034] Different from the prior art, this application discloses a dual-purpose device for keeping the limbs of dialysis patients warm. Through the corresponding cooperation of each structure, by clamping the patient's limb in the way that the first hinge rod 3 and the tin foil heat insulation cover 4 gather towards the axes of the limiting cylinder 1 and the outer wire cylinder 2, it can effectively avoid the phenomenon of the patient's limb displacement during dialysis, and can also adapt to limbs of different sizes, improving the adaptability of the device during use. Through each tin foil heat insulation cover 4, the function of wrapping and heating the outside of the patient's limb is realized, which is easy to apply hot compress to dilate blood vessels before dialysis and can increase blood flow. The adjusted tin foil heat insulation cover 4 exposes the patient's limb for medical staff to perform puncture operations, improving the convenience of the device during use, and realizing the function of heating, insulating and positioning the patient's limb simultaneously.

[0035] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Dialysis patient limb warming and dual-purpose device, including a limiting cylinder (1), characterized in that: A support connection assembly is provided on the limiting cylinder (1); The support connection assembly includes an external thread cylinder (2) provided in the middle of the limiting cylinder (1). One end of the external thread cylinder (2) is fixedly provided with a first connection ring (7). A plurality of first hinge rods (3) with adjustable angles are hinged on the first connection ring (7). Angle-adjustable tin foil heat insulation covers (4) are provided on both sides of each first hinge rod (3); Installation cavities (13) are formed in a plurality of the tin foil heat insulation covers (4). Heating resistors (5) are embedded in each of the installation cavities (13). Electric heating wires (6) for heating are provided on a plurality of the heating resistors (5).

2. The dialysis patient limb warming and dual-purpose device according to claim 1, wherein: One end of the limiting cylinder (1) is provided with a second connection ring (8). A plurality of hinge seats are distributed on the outer sides of the second connection ring (8) and the first connection ring (7).

3. The dialysis patient limb warming and dual-purpose device according to claim 2, characterized in that: A second hinge rod (9) is hinged on one side of the first hinge rod (3). First pins (10) are rotatably connected to one ends of the second hinge rod (9) and the first hinge rod (3).

4. The dialysis patient limb warming and dual-purpose device according to claim 3, characterized in that: The first pin (10) belonging to the first hinge rod (3) extends to the hinge seat outside the first connection ring (7) and is rotatably connected thereto. The first pin (10) belonging to the second hinge rod (9) extends to the hinge seat outside the second connection ring (8) and is rotatably connected thereto.

5. The dialysis patient limb warming and dual-purpose device according to claim 1, wherein: A second pin (11) is inserted into the first hinge rod (3). Two ends of the second pin (11) respectively extend to the corresponding tin foil heat insulation cover (4), and the tin foil heat insulation cover (4) is rotatably connected to the second pin (11).

6. The dialysis patient limb warming and dual-purpose device according to claim 1, wherein: An adaptation arc groove (14) is formed on one side of the tin foil heat insulation cover (4). The vertical cross-sectional shape of the adaptation arc groove (14) is set to be arc-shaped.

7. The dialysis patient limb warming and dual-purpose device according to claim 2, characterized in that: An internal thread ring (12) is rotatably connected to one end of the limiting cylinder (1) far from the second connection ring (8). The internal thread ring (12) is sleeved outside the external thread cylinder (2), and the internal thread ring (12) is threadedly connected to the external thread cylinder (2).

8. The limb warming and dual-purpose device for dialysis patients according to claim 1, wherein: A plurality of the tin foil heat insulation covers (4) are circumferentially distributed along the center points of the limiting cylinder (1) and the external thread cylinder (2). The vertical cross-sectional shapes of each of the tin foil heat insulation covers (4) are combined into a frustum shape.

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