Double-adjustment limb fixing device for hemodialysis

Abstract

The invention discloses a double-adjustment limb fixing device for hemodialysis, and relates to the technical field of medical auxiliary instruments, the double-adjustment limb fixing device comprises a fixing block, an extension rod is arranged on one side of the fixing block, and a baffle is arranged at the end, away from the fixing block, of the extension rod; according to the double-adjustment limb fixing device for hemodialysis, when a limb of a patient needs to be fixed, the whole adjusting assembly is fixed to the optimal position, so that the limb of the patient is placed in the most comfortable posture, then the limb of the patient is firstly placed on an arc-shaped plate, and the limb of the patient is fixed through cooperation with a clamping plate; meanwhile, the supporting assembly is matched to support other parts of the limbs of the patient, the position of the supporting assembly is adjusted according to the actual condition to enable the supporting assembly to be suitable for the current scene, the supporting plate is matched to support and limit the limbs of the patient, the patient is helped to keep the limbs immovable in the dialysis process, and the patient is helped to be more comfortable. Therefore, secondary injury caused by random movement of limbs is reduced.

Description

Technical Field

[0001] The invention relates to medical auxiliary equipment technology, and in particular to a double-adjusting limb fixing device for hemodialysis. Background Art

[0002] Hemodialysis is one of the treatments for patients with acute and chronic renal failure. It drains blood from the body to the outside of the body, passes it through a dialyzer composed of countless hollow fibers, exchanges substances through diffusion and convection, removes metabolic waste from the body to maintain electrolyte and acid-base balance, and removes excess water from the body. The whole process of returning the purified blood is called hemodialysis. During the dialysis process, the patient needs to lie still for 4-5 hours, and passive limb movement is restricted for 4-5 hours.

[0003] Hemodialysis is a commonly used renal replacement therapy. Simply put, it is a treatment process that uses a dialyzer to exchange blood with an electrolyte solution containing a concentration similar to that of the body, remove metabolic waste from the body, maintain the balance of electrolytes and acid-base, and then return the purified blood. Whether it is a patient with chronic renal failure or acute renal failure, they may need a hemodialysis machine for treatment at a certain stage. Because hemodialysis patients usually have more dialysis times, repeated punctures of the skin at the puncture site can easily form scar tissue, and the hemodialysis time is longer. During dialysis, the movement of the patient's arm can easily cause the needle to slip, so a fixator is needed to fix the patient's arm.

[0004] The existing hemodialysis fixation mechanism has a relatively single function, and its fixing force is not easy to adjust, which can easily cause discomfort or even injury to the patient; it cannot adapt to the needs of patients with different body shapes and limb sizes, and has poor adaptability. During long-term dialysis, the fixation device can easily cause discomfort to the patient; there is a lack of protection for vascular access and dialysis pipelines, and a slight touch on the pipeline may affect hemodialysis. At the same time, the patient undergoes dialysis for a relatively long time, and the blood in the whole body needs to circulate and filter slowly. Dialysis patients mostly lie flat or sit, and their arms need to be exposed. The inlet and return blood vessels are connected to the arteries and veins of the arms respectively through needles; although medical staff fix them with tape, the patient's activities such as sleeping and sitting up during dialysis can easily cause them to forget that they are undergoing dialysis, which can lead to needle removal and puncture of blood vessels; therefore, during dialysis, patients mostly maintain a posture and do not move, but long-term dialysis can cause numbness and discomfort in the arms, and loss of sensation, so a double-adjustable limb fixation device for hemodialysis has been developed. Summary of the invention

[0005] The object of the present invention is to provide a double-adjustable limb fixation device for hemodialysis to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a double-adjustable limb fixation device for hemodialysis, comprising a fixing block, an extension rod is arranged on one side of the fixing block, a baffle is arranged on one end of the extension rod away from the fixing block, and an adjustment component is arranged on one end of the fixing block away from the extension rod, and the limb is fixed by the adjustment component;

[0007] A support assembly, which is mounted on the extension rod and is used to support the limb;

[0008] The adjusting assembly comprises a supporting plate connected to the fixed block, a supporting block is arranged at the upper end of the supporting plate, a screw is rotatably mounted on the end of the supporting block, the end of the screw passes through and extends to the other end of the supporting block, and a movable block is rotatably mounted on the outer surface of the screw;

[0009] A first positioning block is rotatably mounted on the upper end of the movable block, and a second positioning block is rotatably mounted on the upper end of the supporting block. The end of the first positioning block is rotatably connected to the end of the second positioning block, and a connecting block is provided at the connection between the first positioning block and the second positioning block.

[0010] A limit block is provided at the lower end of the support plate, a protrusion is provided at the end of the limit block, and an adjustment plate is rotatably installed at the end of the protrusion, a sleeve is slidably installed at the upper end of the adjustment plate, the outer surface of the sleeve is rotatably connected to the end of the connecting block, and a protrusion is provided at the lower end of the adjustment plate;

[0011] A fixing column is arranged at the upper end of the support plate and at the end of the screw rod, a sphere is rotatably mounted on the upper end of the fixing column, and an arc plate is arranged on the upper end of the sphere, through which the limb is fixed.

[0012] As a further optimization solution of the present invention, the upper end of the adjustment plate is cylindrical and is used to limit the sleeve.

[0013] As a further optimization solution of the present invention, the end of the clamping block passes through and extends into the interior of the limiting block.

[0014] As a further optimization solution of the present invention, the support assembly includes a base plate connected to the extension rod, and columns are symmetrically arranged on the upper end of the base plate.

[0015] As a further optimization solution of the present invention, a conical block is provided at one opposite end of the two columns, and a conical groove is formed at the end of the conical block.

[0016] As a further optimization solution of the present invention, a sliding block is slidably mounted on the inner wall of the tapered groove.

[0017] As a further optimization solution of the present invention, a fixing rod is provided at the end of the sliding block, and the end of the fixing rod penetrates and extends to the outside of the conical block.

[0018] As a further optimization solution of the present invention, an elastic member is disposed on the outer surface of the fixing rod, and two ends of the elastic member are respectively connected to opposite ends of the two conical blocks.

[0019] As a further optimization solution of the present invention, a support plate is provided at the upper end of the conical block, and the cross section of the support plate is arc-shaped.

[0020] As a further optimization solution of the present invention, a slot hole is opened at the end of the bottom plate, and the inner wall of the slot hole is slidably connected to the outer surface of the extension rod.

[0021] Compared with the prior art, the dual-adjustment limb fixation device for hemodialysis provided by the present invention has the following beneficial effects: when it is necessary to fix the patient's limbs, the entire adjustment component is fixed in the optimal position so that the patient's limbs are placed in the most comfortable posture, and then the patient's limbs are placed on the arc plate first, and the patient's limbs are fixed with the help of the clamping plate to ensure that they remain stable during the entire dialysis operation. At the same time, the support component is used to support other parts of the patient's limbs. According to the actual situation, the position of the support component is adjusted to make it suitable for the current scene, and the patient's limbs are supported and limited with the help of the support plate, which helps the patient keep his limbs still during the dialysis process, thereby reducing secondary injuries caused by limb movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A first schematic diagram of the overall structure provided by an embodiment of the present invention;

[0024] Figure 2 A second schematic diagram of the overall structure provided by an embodiment of the present invention;

[0025] Figure 3 A cross-sectional view of the overall internal structure provided by an embodiment of the present invention;

[0026] Figure 4 for Figure 2 A magnified view of the structure in the middle;

[0027] Figure 5 A cross-sectional view of the internal structure of the adjustment component provided by an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of a support assembly provided in an embodiment of the present invention;

[0029] Figure 7 A first cross-sectional view of the internal structure of a support assembly provided by an embodiment of the present invention;

[0030] Figure 8 A second cross-sectional view of the internal structure of the support assembly provided in an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Fixed block; 2. Adjustment assembly; 3. Support assembly; 11. Extension rod; 12. Baffle; 21. Support plate; 211. Limit block; 212. Fixed column; 213. Sphere; 214. Arc plate; 22. Support block; 23. Screw; 231. Movable block; 24. First positioning block; 25. Second positioning block; 26. Connecting block; 27. Sleeve; 28. Adjustment plate; 281. Clamping block; 29. ​​Protrusion; 31. Bottom plate; 32. Column; 33. Conical block; 331. Conical groove; 34. Slider; 35. Fixed rod; 36. Elastic member; 37. Support plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example: See Figure 1-Figure 8 A double-adjustable limb fixation device for hemodialysis includes a fixing block 1, an extension rod 11 is arranged on one side of the fixing block 1, a baffle 12 is arranged on the end of the extension rod 11 away from the fixing block 1, and an adjustment component 2 is arranged on the end of the fixing block 1 away from the extension rod 11, and the limb is fixed by the adjustment component 2.

[0036] In this solution, the entire device is fixedly installed in the use position through the adjustment component 2, fixed in the designated position according to the actual needs of the patient, and the patient's limbs are supported and fixed. When the patient's limbs are adjusted to the optimal position, the limbs are fixed with the adjustment component 2 so that the patient remains stable as a whole during dialysis.

[0037] The outer surface of the fixed block 1 is provided with a guide groove and the like having a sliding function, so that the entire extension rod 11 can slide on the inner wall of the guide groove, and the support assembly 3 installed on the extension rod 11 can be adjusted in angle, thus being suitable for most scenarios.

[0038] Furthermore, the adjustment component 2 includes a support plate 21 connected to the fixed block 1, a support block 22 is provided at the upper end of the support plate 21, a screw rod 23 is rotatably installed at the end of the support block 22, the end of the screw rod 23 passes through and extends to the other end of the support block 22, and a movable block 231 is rotatably installed on the outer surface of the screw rod 23.

[0039] In this embodiment, a slide groove is provided at the upper end of the support plate 21, and the inner wall of the slide groove is slidably connected to the outer surface of the movable block 231, so that when the screw rod 23 rotates, the movable block 231 moves along the track of the slide groove, thereby ensuring the overall stability of the movable block 231.

[0040] The end of the screw 23 may also be provided with a device with power output, such as a motor, and connected to an external control device, so that the screw 23 can be rotated electrically to avoid the overall loosening when the operator tightens it.

[0041] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Microcontroller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., which is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but has a small storage capacity, a simple input and output interface, and low functional consumption.

[0042] Furthermore, a first positioning block 24 is rotatably mounted on the upper end of the movable block 231, and a second positioning block 25 is rotatably mounted on the upper end of the support block 22. The end of the first positioning block 24 is rotatably connected to the end of the second positioning block 25, and a connecting block 26 is provided at the connection between the first positioning block 24 and the second positioning block 25.

[0043] Specifically, when the movable block 231 moves, it synchronously drives the first positioning block 24 installed on its upper end to move. Since the end of the first positioning block 24 is rotatably connected to the end of the second positioning block 25, when the movable block 231 moves, the first positioning block 24 is moved toward the middle, so that the connection between the first positioning block 24 and the second positioning block 25 expands outward, and at the same time drives the connection block 26 set at the connection between the first positioning block 24 and the second positioning block 25 to move synchronously.

[0044] Furthermore, a limit block 211 is provided at the lower end of the support plate 21, a protrusion 29 is provided at the end of the limit block 211, and an adjustment plate 28 is rotatably installed at the end of the protrusion 29, a sleeve 27 is slidably installed at the upper end of the adjustment plate 28, an outer surface of the sleeve 27 is rotatably connected to the end of the connecting block 26, and a protrusion 29 is provided at the lower end of the adjustment plate 28.

[0045] Specifically, when the connecting block 26 moves, the sleeve 27 installed at its end is synchronously driven to move, and the adjusting plate 28 is pushed to rotate at the end of the protrusion 29, thereby driving the end away from the connecting block 26 to move toward the middle, clamping the support for the patient to sit or lie down, so that the whole is fixed in the specified position.

[0046] A protective plate is provided at the lower end of the limit block 211, and the outer surface of the protective plate is provided with anti-slip components such as rubber, so that after the protective plate contacts the fixed point, no sliding will occur, thereby further enhancing the overall stability.

[0047] Furthermore, a fixing column 212 is provided at the upper end of the support plate 21 and at the end of the screw rod 23 , a sphere 213 is rotatably mounted on the upper end of the fixing column 212 , and an arc plate 214 is provided at the upper end of the sphere 213 , through which the limb is fixed.

[0048] Specifically, a spherical shell is provided at the upper end of the fixing column 212, and a threaded hole is opened on the inner wall of the spherical shell. A screw is rotatably installed on the inner wall of the threaded hole. At the same time, a rubber block is provided at the end of the screw to fix the adjusted sphere 213 through the rubber block.

[0049] Snap-on grooves are provided on both sides of the upper end of the arc plate 214, and snap-on plates are provided on the inner walls of the snap-on grooves. When the patient places his limbs on the arc plate 214, the snap-on plates are used to fix the patient's limbs to ensure stability during the entire dialysis operation.

[0050] When the patient places the limb on the arc-shaped plate 214, the whole body can be restricted by a clamp or other fixing component, thereby ensuring that the patient's limb remains stable.

[0051] Furthermore, the upper end of the adjustment plate 28 is cylindrical and is used to limit the sleeve 27. The end of the clamping block 281 penetrates and extends to the inside of the limiting block 211.

[0052] Specifically, the sleeve 27 can slide on the upper end of the adjustment plate 28, so that the sleeve 27 will not be disturbed when moving, and the sleeve 27 is limited to prevent the sleeve 27 from falling off when moving.

[0053] A guide groove is provided at the upper end of the adjustment plate 28, and the inner wall of the guide groove is slidably connected to the outer surface of the sleeve 27, thereby further limiting the sleeve 27 so that the sleeve 27 always reciprocates along a prescribed route when moving.

[0054] Furthermore, the support assembly 3 is mounted on the extension rod 11 and is used to support the limb; the support assembly 3 includes a bottom plate 31 connected to the extension rod 11, and the upper end of the bottom plate 31 is symmetrically provided with columns 32. Conical blocks 33 are provided at opposite ends of the two columns 32, and a conical groove 331 is provided at the end of the conical block 33. A slider 34 is slidably installed on the inner wall of the conical groove 331. A slot hole 311 is provided at the end of the bottom plate 31, and the inner wall of the slot hole 311 is slidably connected to the outer surface of the extension rod 11.

[0055] In this embodiment, the lower end of the column 32 is slidably connected to the upper end of the base plate 31, wherein an arc groove is provided at the upper end of the base plate 31, and at the same time, the lower end of the outer surface of the column 32 is slidably connected to the inner wall of the arc groove, so that the angle of the entire support component 3 can be finely adjusted to make it more suitable for different scenarios, and the column 32 is used to limit the conical block 33, and the lower end of the column 32 is slidably connected to the slot 311 on the base plate 31, so that the conical block 33 will not be hindered when moving to both sides.

[0056] At the same time, the outer surface of the slider 34 is provided with a rubber or other anti-slip component, so that when the slider 34 contacts the smaller diameter portion of the tapered groove 331 , the engaging state is maintained.

[0057] Furthermore, a fixing rod 35 is provided at the end of the slider 34, and the end of the fixing rod 35 penetrates and extends to the outside of the conical block 33. An elastic member 36 is provided on the outer surface of the fixing rod 35, and both ends of the elastic member 36 are respectively connected to the opposite ends of the two conical blocks 33. A supporting plate 37 is provided at the upper end of the conical block 33, and the cross section of the supporting plate 37 is arc-shaped.

[0058] Specifically, the elastic member 36 is an elastic component such as a spring, which is used to move the two conical blocks 33 first. When the patient's limbs are placed on the support plate 37, the gravity factor causes the support plate 37 to move to both sides, thereby pulling the elastic member 36, so that the support plate 37 is in a taut state as a whole, limiting the patient's limbs and ensuring that the patient's limbs do not shake during dialysis. When the patient's limbs are picked up, the two conical blocks 33 are restored to their initial positions by the force of the elastic member 36, so that the next patient can continue to use it.

[0059] A supporting component such as elastic fabric is arranged between the two support plates 37 , so that when the two support plates 37 move, there are still components between the two support plates 37 to support the limb.

[0060] The inner cavity of the support plate 37 is provided with components with temperature regulating function such as a temperature controller, which are used to regulate the temperature of the patient's limbs so that the patient's limbs are in the optimal temperature range.

[0061] When it is necessary to fix the patient's limbs, the entire adjustment component 2 is fixed in the best position so that the patient's limbs are placed in the most comfortable posture. The patient's limbs are then placed on the arc plate 214, and the patient's limbs are fixed with the help of the snap-on plate to ensure stability during the entire dialysis operation. At the same time, the support component 3 is used to support other parts of the patient's limbs. According to the actual situation, the position of the support component 3 is adjusted to make it suitable for the current scene, and the support plate 37 is used to support and limit the patient's limbs to help the patient keep his limbs still during the dialysis process.

[0062] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dual-adjustable limb fixation device for hemodialysis, characterized in that: It comprises a fixing block (1), an extension rod (11) is arranged on one side of the fixing block (1), a baffle (12) is arranged at one end of the extension rod (11) away from the fixing block (1), and an adjustment component (2) is arranged at one end of the fixing block (1) away from the extension rod (11), and the limb is fixed by the adjustment component (2); A support assembly (3), which is mounted on the extension rod (11) and is used to support the limb; The adjusting assembly (2) comprises a supporting plate (21) connected to the fixed block (1), a supporting block (22) being arranged at the upper end of the supporting plate (21), a screw rod (23) being rotatably mounted on the end of the supporting block (22), the end of the screw rod (23) passing through and extending to the other end of the supporting block (22), and a movable block (231) being rotatably mounted on the outer surface of the screw rod (23); A first positioning block (24) is rotatably mounted on the upper end of the movable block (231), and a second positioning block (25) is rotatably mounted on the upper end of the supporting block (22); an end of the first positioning block (24) is rotatably connected to an end of the second positioning block (25), and a connecting block (26) is provided at the connection between the first positioning block (24) and the second positioning block (25); A limit block (211) is provided at the lower end of the support plate (21), a protrusion (29) is provided at the end of the limit block (211), and an adjustment plate (28) is rotatably mounted on the end of the protrusion (29), a sleeve (27) is slidably mounted on the upper end of the adjustment plate (28), an outer surface of the sleeve (27) is rotatably connected to the end of the connection block (26), and a protrusion (29) is provided at the lower end of the adjustment plate (28); A fixing column (212) is arranged at the upper end of the support plate (21) and at the end of the screw rod (23); a sphere (213) is rotatably mounted on the upper end of the fixing column (212); an arc plate (214) is arranged at the upper end of the sphere (213); and the limb is fixed by the arc plate (214).

2. A dual-adjustable limb fixation device for hemodialysis according to claim 1, characterized in that: The upper end of the adjustment plate (28) is cylindrical and is used to limit the sleeve (27).

3. A dual-adjustable limb fixation device for hemodialysis according to claim 1, characterized in that: The end of the clamping block (281) penetrates and extends into the interior of the limiting block (211).

4. A dual-adjustable limb fixation device for hemodialysis according to claim 1, characterized in that: The support assembly (3) comprises a bottom plate (31) connected to the extension rod (11), and upright posts (32) are symmetrically arranged at the upper end of the bottom plate (31).

5. A dual-adjustable limb fixation device for hemodialysis according to claim 4, characterized in that: A conical block (33) is provided at one opposite end of the two upright posts (32), and a conical groove (331) is provided at the end of the conical block (33).

6. A dual-adjustment limb fixation device for hemodialysis according to claim 5, characterized in that: A sliding block (34) is slidably mounted on the inner wall of the tapered groove (331).

7. A dual-adjustable limb fixation device for hemodialysis according to claim 6, characterized in that: A fixing rod (35) is provided at the end of the sliding block (34), and the end of the fixing rod (35) penetrates and extends to the outside of the conical block (33).

8. A dual-adjustable limb fixation device for hemodialysis according to claim 7, characterized in that: An elastic member (36) is provided on the outer surface of the fixing rod (35), and two ends of the elastic member (36) are respectively connected to opposite ends of the two conical blocks (33).

9. A dual-adjustable limb fixation device for hemodialysis according to claim 8, characterized in that: A support plate (37) is provided at the upper end of the conical block (33), and the cross section of the support plate (37) is arc-shaped.

10. A dual-adjustable limb fixation device for hemodialysis according to claim 9, characterized in that: A slot hole (311) is provided at the end of the bottom plate (31), and the inner wall of the slot hole (311) is slidably connected to the outer surface of the extension rod (11).

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