Limb supporting device for right radial artery puncture

Abstract

The invention relates to the technical field of postoperative care, in particular to a right radial artery puncture limb supporting device. The device comprises a big arm fixing assembly and a small arm fixing assembly, the small arm fixing assembly is connected with the big arm fixing assembly through a turnover adjusting mechanism, the big arm fixing assembly comprises a big arm U-shaped protective cover and a bottom plate arranged at the inner end of the big arm U-shaped protective cover, and a big arm tightening belt is arranged on the side wall of the big arm U-shaped protective cover close to one side of the outer end of the big arm U-shaped protective cover. And a supporting mechanism is arranged on the bottom plate. According to the utility model, the structural design is reasonable, the operation is convenient, different supporting modes can be selected according to the needs of a patient to easily cope with the scenes of lying, sitting or side sitting, the universality is effectively improved, the angle between the forearm and the big arm can be adjusted according to the habits of the patient, the purpose of lifting the arm can be achieved, the use comfort of the patient can also be improved, and the use is convenient. The problems in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of postoperative care, in particular to a right radial artery puncture limb supporting device. Background Art

[0002] Radial artery puncture is a type of interventional surgery in cardiovascular medicine. It is mainly used to collect arterial blood for blood gas analysis, which is an important method for diagnosing and monitoring respiratory, metabolic status and acid-base balance. Radial artery puncture is also used for intra-arterial pressure monitoring and certain interventional treatments (such as interventional treatment of coronary heart disease). The radial artery is the most commonly used arterial puncture route, and the right radial artery is usually used. After radial artery puncture, pay attention to bed rest and avoid strenuous exercise. At the same time, the patient's arm needs to be raised, which helps reduce swelling in the palm and speeds up recovery after relieving the pressure.

[0003] At present, commonly used support devices such as the utility model patent with patent announcement number CN222130453U mainly deal with how to clamp more firmly on the armrest of the hospital bed. However, this type of device still has many shortcomings in the actual postoperative care process; first, when the patient is resting in bed after surgery, it is impossible to maintain an unchanged posture for a long time, and it is necessary to switch back and forth between different postures such as lying flat, sitting or sitting sideways, and this device can only cope with the single scenario of clamping on the armrest, and its versatility is not strong; second, this device can only increase the overall height of the upper limbs, and cannot adjust the inclination angle of the upper arm and the forearm at will according to the patient's needs. The comfort of use is still lacking and cannot improve the comfort of patients. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a right radial artery puncture limb support device, which has a reasonable structural design and is easy to operate. Different support modes can be selected according to the needs of the patient to easily cope with the scenes of lying flat, sitting or sitting sideways, thereby effectively improving the versatility. Moreover, the angle between the forearm and the upper arm can be adjusted according to the patient's habits, which can not only achieve the purpose of raising the arm, but also improve the patient's comfort, thereby solving the problems existing in the prior art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A right radial artery puncture limb support device comprises an upper arm fixing assembly and a lower arm fixing assembly, wherein the lower arm fixing assembly is connected to the upper arm fixing assembly via a flip adjustment mechanism, the upper arm fixing assembly comprises an upper arm U-shaped shield and a bottom plate arranged at the inner end of the upper arm U-shaped shield, an upper arm tightening belt is arranged on the side wall of the upper arm U-shaped shield on the side close to the outer end, a supporting mechanism is arranged on the bottom plate, the lower arm fixing assembly comprises a lower arm U-shaped shield, the inner end of the lower arm U-shaped shield is movably connected to the inner end of the upper arm U-shaped shield, and a plurality of lower arm tightening belts are arranged on the side wall of the lower arm U-shaped shield at intervals along its length direction.

[0007] Optionally, the flip adjustment mechanism includes limit members symmetrically arranged on the front and rear side walls of the upper arm U-shaped shield, the limit members include a fixing plate fixedly mounted on the side wall of the upper arm U-shaped shield, a limit seat horizontally passing through the side wall of the upper arm U-shaped shield is provided in the middle of the inner wall of the fixing plate, a limit groove is provided in the center of the outer wall of the limit seat, a rotating cylinder is provided on the side wall of the forearm U-shaped shield corresponding to the position of the limit member, the outer end of the rotating cylinder is movably inserted into the center of the inner wall of the limit seat and extends into the limit groove, and a positioning member matching with it is provided on the limit member on one side.

[0008] Optionally, the positioning member includes a positioning plate movably abutted against the outer wall of the fixed plate, a positioning gear engaged in the limiting groove is provided on the inner wall of the positioning plate, a tooth groove meshing with the positioning gear is provided along the circumferential direction of the limiting groove, a positioning block engaged in the rotating drum is provided in the center of the inner wall of the positioning gear, a plurality of grooves are provided at intervals along the circumferential direction of the positioning block on the side walls, and matching blocks are provided on the inner wall of the rotating drum corresponding to each groove position; a pull ring is provided on the outer wall of the positioning plate.

[0009] Optionally, a clamping ring abutting against the limiting groove is provided at the outer end of the drum.

[0010] Optionally, a magnetic ring is embedded on the fixing plate outside the limiting groove, and the positioning plate can be adsorbed on the magnetic ring of the fixing plate.

[0011] Optionally, the supporting mechanism includes a supporting seat arranged on the surface of the bottom plate, a groove is provided in the center of the surface of the supporting seat, the bottom of the groove is hemispherical, an upper support rod is provided under the bottom plate, the upper support rod is movably clamped in the groove by a ball head arranged at its upper end, a through hole for the upper support rod to pass through is provided on the bottom plate corresponding to the position of the groove, a lower support rod is movably sleeved in the upper support rod, a triangular plate is horizontally provided at the lower end of the lower support rod, a plurality of groups of clamping holes are symmetrically provided on both sides of the upper support rod from top to bottom, a locking pin movably passes through the upper end of the lower support rod and is clamped in one of the groups of clamping holes of the upper support rod; a boss is provided on the surface of the supporting seat outside the groove, a sealing cover is threadedly connected to the boss of the supporting seat, and an arc block abutting against the ball head is provided on the inner wall of the sealing cover.

[0012] Optionally, a counterweight block sleeved on the lower support rod is provided on the triangular plate.

[0013] Optionally, it also includes a telescopic shield that is slidably clamped in the U-shaped shield of the upper arm, and sliding bars are symmetrically provided on the front and rear sides of the inner wall of the U-shaped shield of the upper arm along its length direction, and sliding grooves matching them are provided on the telescopic shield corresponding to the positions of the two sliding bars, and a first sponge layer is provided on the inner wall of the telescopic shield.

[0014] Optionally, a second sponge layer is provided on the inner wall of the forearm U-shaped shield.

[0015] Optionally, it also includes a clamping assembly clamped on the base plate, the clamping assembly includes a clamping seat abutting the bottom of the base plate, an elastic paddle clamped on the clamping seat and connected to the surface of the base plate, an armrest slot penetrating the left and right side walls of the clamping seat is provided in the center of the bottom of the base plate, and abutments are provided on the front and rear side walls of the clamping seat, the abutments include a pull-out plate, and pull rods horizontally passing through the clamping seat are provided on the left and right sides of the pull-out plate, the inner ends of the two pull rods are connected to an arc-shaped plate arranged in the armrest slot, and spring slots are provided on the side walls of the clamping seat corresponding to the positions of the two pull rods, and springs movably sleeved on the pull rods on the corresponding side are provided in the two spring slots.

[0016] The present invention adopts the above technical solution, which has the advantages of reasonable structural design, easy operation, and the ability to select different support methods according to the needs of the patient to easily cope with the scenes of lying flat, sitting or sitting sideways, effectively improving the versatility, and the angle between the forearm and the upper arm can be adjusted according to the patient's habits, which can not only achieve the purpose of raising the arm, but also improve the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the U-shaped shield of the upper arm;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the U-shaped shield of the forearm;

[0020] Figure 4 is a schematic diagram of the three-dimensional structure of the telescopic shield;

[0021] Figure 5 is a schematic diagram of the three-dimensional structure of the limiting member;

[0022] Figure 6 is a schematic diagram of the three-dimensional structure of the positioning member;

[0023] Figure 7 is a schematic diagram of the three-dimensional structure of the sealing cover;

[0024] Figure 8 is a schematic diagram of the three-dimensional structure of the supporting mechanism;

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the clamping assembly and the upper arm tightening belt;

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the clamping seat;

[0027] Fig.11 is a schematic diagram of the three-dimensional structure of two abutting members;

[0028] In the figure, 1, upper arm U-shaped guard; 2, bottom plate; 3, upper arm tightening belt; 4, lower arm U-shaped guard; 5, lower arm tightening belt; 6, fixing plate; 7, limit seat; 8, limit groove; 9, rotating drum; 10, positioning plate; 11, positioning gear; 12, tooth groove; 13, positioning block; 14, clamping groove; 15, clamping block; 16, pull ring; 17, clamping ring; 18, magnetic ring; 19, supporting seat; 20, groove; 21, upper support rod; 22, ball head; 23 , through hole; 24, lower support rod; 25, triangular plate; 26, card hole; 27, locking pin; 28, boss; 29, sealing cover; 30, arc block; 31, counterweight block; 32, telescopic cover; 33, slide bar; 34, slide groove; 35, first sponge layer; 36, second sponge layer; 37, clamping seat; 38, elastic paddle; 39, armrest card groove; 40, pull-out plate; 41, pull rod; 42, arc plate; 43, spring card groove; 44, spring. DETAILED DESCRIPTION

[0029] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings. In the following description, many specific details are described to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0030] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0032] like Figure 1-11 As shown, in this embodiment, a right radial artery puncture limb support device includes an upper arm fixing component and a forearm fixing component, the forearm fixing component is connected to the upper arm fixing component by a flip adjustment mechanism, the upper arm fixing component includes an upper arm U-shaped shield 1 and a base plate 2 arranged at the inner end of the upper arm U-shaped shield 1, an upper arm tightening belt 3 is provided on the side wall of the upper arm U-shaped shield 1 on the side of the outer end, and a supporting mechanism is provided on the base plate 2, the forearm fixing component includes a forearm U-shaped shield 4, the inner end of the forearm U-shaped shield 4 is movably connected to the inner end of the upper arm U-shaped shield 1, and a plurality of forearm tightening belts 5 are provided on the side wall of the forearm U-shaped shield 4 along its length direction at intervals.

[0033] Optionally, the flip adjustment mechanism includes a limit piece symmetrically arranged on the front and rear side walls of the upper arm U-shaped shield 1, and the limit piece includes a fixing plate 6 fixedly mounted on the side wall of the upper arm U-shaped shield 1, and a limit seat 7 is provided in the middle of the inner wall of the fixing plate 6 and horizontally passes through the side wall of the upper arm U-shaped shield 1, and a limit groove 8 is provided in the center of the outer wall of the limit seat 7, and a rotating cylinder 9 is provided on the side wall of the forearm U-shaped shield 4 corresponding to the position of the limit piece, and the outer end of the rotating cylinder 9 is movably inserted from the center of the inner wall of the limit seat 7 and extends into the limit groove 8, and a positioning piece matching with it is provided on the limit piece on one side.

[0034] Optionally, the positioning member includes a positioning plate 10 movably abutted against the outer wall of the fixed plate 6, a positioning gear 11 is provided on the inner wall of the positioning plate 10 and is clamped in the limiting groove 8, a tooth groove 12 is provided on the limiting groove 8 along its circumferential direction and meshes with the positioning gear 11, a positioning block 13 is provided in the center of the inner wall of the positioning gear 11 and is clamped in the rotating cylinder 9, a plurality of clamping grooves 14 are provided on the side walls of the positioning block 13 at intervals along its circumferential direction, and clamping blocks 15 matching therewith are provided on the inner walls of the rotating cylinder 9 corresponding to the positions of the clamping grooves 14; a pull ring 16 is provided on the outer wall of the positioning plate 10.

[0035] Optionally, a clamping ring 17 abutting against the limiting groove is provided at the outer end of the rotating cylinder 9. The rotating cylinders 9 on both sides of the forearm U-shaped shield 4 are respectively clamped in the limiting seat 7 on the corresponding side through the clamping ring 17, so as to better limit the forearm U-shaped shield 4 and prevent the rotating cylinder 9 from separating from the limiting seat 7.

[0036] Optionally, a magnetic ring 18 is embedded on the fixing plate 6 outside the limiting groove 8, and the positioning plate 10 can be adsorbed on the magnetic ring 18 of the fixing plate 6. When the positioning member fixes the position of the U-shaped shield 4 of the forearm, the positioning plate 10 can be adsorbed on the magnetic ring 18 to fix the position through the cooperation between the positioning plate 10 and the magnetic ring 18.

[0037] Optionally, the support mechanism includes a support seat 19 arranged on the surface of the base plate 2, a groove 20 is provided in the center of the surface of the support seat 19, the bottom of the groove 20 is hemispherical, an upper support rod 21 is provided below the base plate 2, the upper support rod 21 is movably connected to the groove 20 through a ball head 22 arranged at its upper end, a through hole 23 for the upper support rod 21 to pass through is provided on the base plate 2 at the position corresponding to the groove 20, a lower support rod 24 is movably sleeved in the upper support rod 21, a triangular plate 25 is horizontally provided at the lower end of the lower support rod 24, a plurality of groups of card holes 26 are symmetrically provided on both sides of the upper support rod 21 from top to bottom, a locking pin 27 movably passes through the upper end of the lower support rod 24 and is connected to one of the groups of card holes 26 of the upper support rod 21; a boss 28 is provided on the surface of the support seat 19 outside the groove 20, a sealing cover 29 is threadedly connected to the boss 28 of the support seat 19, and an arc block 30 abutting against the ball head 22 is provided on the inner wall of the sealing cover 29.

[0038] Optionally, a counterweight 31 sleeved on the lower support rod 21 is provided on the triangular plate 25. The counterweight 31 can be selected to increase the weight of the device as a whole, so that the chassis of the device is more stable when the patient is in use.

[0039] Optionally, it also includes a telescopic shield 32 that is slidably connected to the upper arm U-shaped shield 1, and slide bars 33 are symmetrically provided on the front and rear sides of the inner wall of the upper arm U-shaped shield 1 along its length direction, and slide grooves 34 that match the two slide bars 33 are provided on the telescopic shield 32 at the positions corresponding to the two slide bars 33, and a first sponge layer 35 is provided on the inner wall of the telescopic shield 32. By pulling the telescopic shield 32 outward, the telescopic shield 32 is slidably connected to the two slide bars 33 in the upper arm U-shaped shield 1 through the slide grooves 34 on both sides, so that the telescopic shield 32 can extend the overall length of the upper arm U-shaped shield 1 to meet the upper arm length requirements of patients with different lengths and more effectively fix the upper arm.

[0040] Optionally, a second sponge layer 36 is provided on the inner wall of the forearm U-shaped shield 4. The second sponge layer 36 can improve the comfort of the forearm when it is fixed.

[0041] Optionally, it also includes a clamping assembly clamped on the base plate 2, the clamping assembly includes a clamping seat 37 abutting against the bottom of the base plate 2, an elastic paddle 38 clamped on the surface of the base plate 2 is provided on the clamping seat 37, an armrest slot 39 penetrating the left and right side walls of the clamping seat 37 is provided in the center of the bottom of the base plate 2, and abutments are provided on the front and rear side walls of the clamping seat 37, the abutments include a pull-out plate 40, and pull rods 41 horizontally passing through the clamping seat 37 are provided on the left and right sides of the pull-out plate 40, the inner ends of the two pull rods 41 are connected to the arc-shaped plate 42 arranged in the armrest slot 39, and spring slots 43 are provided on the side walls of the clamping seat 37 corresponding to the positions of the two pull rods 41, and springs 44 movably sleeved on the pull rods 41 on the corresponding side are provided in the two spring slots 43.

[0042] When the device is in use, the upper arm is clamped in the upper arm U-shaped shield 1, and the forearm is clamped in the forearm U-shaped shield 4, and then the position of the elbow is adjusted so that the forearm U-shaped shield 4 can drive the forearm to flip smoothly. After the position is adjusted, the forearm is fixed with each forearm tightening belt 5, and the upper arm tightening belt 3 is fixed. Then, the flipping angle between the forearm U-shaped shield 4 and the upper arm U-shaped shield 1 is selected according to the application scenario. The specific adjustment method is as follows: first pull the positioning member outward. At this time, the positioning gear 11 of the positioning member is separated from the tooth groove 12 of the limit seat 7, and the positioning block 13 that fixes the rotating drum 9 to rotate through each clamping block 15 is also separated from the rotating drum 9. At this time, the forearm U-shaped shield 4 can be flipped along the rotating drum 9 on both sides, thereby adjusting the flipping angle between the forearm U-shaped shield 4 and the upper arm U-shaped shield 1. After the angle is adjusted, the positioning piece is reinstalled, and the slots on the positioning block 13 are first inserted into the blocks 15 of the rotating drum 9, and then the positioning piece is pushed inward to make the positioning gear 11 smoothly stuck on the tooth grooves 12 of the limit seat 7, thereby limiting the position of the forearm U-shaped shield 4 to remain unchanged. It has a reasonable structural design and is easy to operate. Different support methods can be selected according to the needs of the patient to easily cope with the scenes of lying flat, sitting or sitting sideways, effectively improving the versatility, and the angle between the forearm and the upper arm can be adjusted according to the patient's habits, which can not only achieve the purpose of raising the arm, but also improve the patient's comfort, solving the problems existing in the prior art.

[0043] Application scenario 1:

[0044] When the patient lies flat on the bed, no supporting mechanism is needed, the upper arm U-shaped shield 1 lies flat on the bed, so that the lower arm U-shaped shield 4 forms an angle of 160-170 degrees with the upper arm U-shaped shield 1, thereby smoothly raising the lower arm.

[0045] Application scenario 2:

[0046] When the patient turns the bed over to make the patient sit or lie down, the support mechanism needs to be used at this time. The upper support rod 21 needs to be inserted into the groove 20 of the support seat 19 first, and the lower end of the upper support rod 21 is transmitted downward from the through hole 23, and the ball head 22 is connected to the bottom of the groove 20. Then tighten the sealing cover 29 to limit the position of the ball head 22. The next step is to adjust the height of the upper support rod 21 and the lower support rod 24 through the locking pin 27 so that it can meet the needs of the patient. At this time, the upper arm U-shaped shield 1 is fixed to the bed through the triangle plate 25, so that there is no need to move the patient to the side of the bed armrest on the bed, and the support of the lower arm U-shaped shield 4 can be achieved, thereby raising and adjusting the lower arm.

[0047] Application scenario three:

[0048] When the patient gets out of bed and sits on a chair, the upper arm U-shaped shield 1 and the lower arm U-shaped shield 4 can be fixed in position by the clamping assembly. It should be noted that the support mechanism is not required at this time. Pull the pull-out plates 40 on both sides of the clamping seat 37 by hand. The pull-out plates 40 pull the arc-shaped plates in the armrest slot 39 through the pull rod 41, so that the two arc-shaped plates 42 are relatively separated in the armrest slot 39, thereby opening the armrest slot 39 and smoothly clamping it on the armrest. Then release the pull-out plate 40. Under the action of the restoring force of the spring 44, the pull-out plate 40 makes the arc-shaped plate 42 abut against the armrest, thereby further reinforcing the clamping seat 37 and fixing it more firmly on the armrest. Finally, insert the bottom plate 2 into the elastic paddle 38 of the clamping seat 37 to fix the upper arm U-shaped shield 1 and the lower arm U-shaped shield 4.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement, improvement or change made to the implementation mode of the present invention falls within the protection scope of the present invention.

[0050] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A right radial artery puncture limb support device, characterized in that: It includes an upper arm fixing assembly and a lower arm fixing assembly, the lower arm fixing assembly is connected to the upper arm fixing assembly through a flip adjustment mechanism, the upper arm fixing assembly includes an upper arm U-shaped guard and a base plate arranged at the inner end of the upper arm U-shaped guard, an upper arm tightening belt is arranged on the side wall of the upper arm U-shaped guard on the side close to the outer end, and a supporting mechanism is arranged on the base plate, the lower arm fixing assembly includes a lower arm U-shaped guard, the inner end of the lower arm U-shaped guard is movably connected to the inner end of the upper arm U-shaped guard, and a plurality of lower arm tightening belts are arranged on the side wall of the lower arm U-shaped guard at intervals along its length direction.

2. A right radial artery puncture limb support device according to claim 1, characterized in that: The flip adjustment mechanism includes limit members symmetrically arranged on the front and rear side walls of the upper arm U-shaped shield, and the limit members include a fixing plate fixedly arranged on the side wall of the upper arm U-shaped shield, a limit seat horizontally passing through the side wall of the upper arm U-shaped shield is provided in the middle of the inner wall of the fixing plate, a limit groove is provided in the center of the outer wall of the limit seat, and a rotating cylinder is provided on the side wall of the forearm U-shaped shield corresponding to the position of the limit member, and the outer end of the rotating cylinder is movably inserted into the limiting groove from the center of the inner wall of the limiting seat, and a positioning member matching it is provided on the limit member on one side.

3. A right radial artery puncture limb support device according to claim 2, characterized in that: The positioning member includes a positioning plate movably abutted against the outer wall of the fixed plate, a positioning gear engaged in a limiting groove is provided on the inner wall of the positioning plate, a tooth groove meshing with the positioning gear is provided along the circumferential direction of the limiting groove, a positioning block engaged in a rotating drum is provided in the center of the inner wall of the positioning gear, a plurality of grooves are provided at intervals along the circumferential direction of the positioning block on the side walls, and matching blocks are provided on the inner wall of the rotating drum corresponding to each groove position; a pull ring is provided on the outer wall of the positioning plate.

4. A right radial artery puncture limb support device according to claim 3, characterized in that: A clamping ring abutting against the limiting groove is arranged at the outer end of the rotating drum.

5. A right radial artery puncture limb support device according to claim 3, characterized in that: A magnetic ring is inlaid on the fixing plate outside the limiting groove, and the positioning plate can be adsorbed on the magnetic ring of the fixing plate.

6. A right radial artery puncture limb support device according to claim 1, characterized in that: The support mechanism includes a support seat arranged on the surface of the base plate, a groove is arranged in the center of the support seat surface, the bottom of the groove is hemispherical, an upper support rod is arranged under the base plate, the upper support rod is movably clamped in the groove through a ball head arranged at its upper end, a through hole for the upper support rod to pass through is arranged on the base plate corresponding to the position of the groove, a lower support rod is movably sleeved in the upper support rod, a triangular plate is horizontally arranged at the lower end of the lower support rod, a plurality of groups of clamping holes are symmetrically arranged on both sides of the upper support rod from top to bottom, a locking pin movably passes through the upper end of the lower support rod and is clamped in one of the groups of clamping holes of the upper support rod; a boss is arranged on the support seat surface outside the groove, a sealing cover is threadedly connected to the boss of the support seat, and an arc block abutting against the ball head is arranged on the inner wall of the sealing cover.

7. A right radial artery puncture limb support device according to claim 6, characterized in that: A counterweight block sleeved on the lower support rod is arranged on the triangular plate.

8. A right radial artery puncture limb support device according to claim 1, characterized in that: It also includes a telescopic shield that is slidably connected to the U-shaped shield of the upper arm. Slide bars are symmetrically arranged along its length direction on the front and rear sides of the inner wall of the U-shaped shield of the upper arm. Slide grooves matching the two slide bars are arranged on the telescopic shield respectively. A first sponge layer is arranged on the inner wall of the telescopic shield.

9. A right radial artery puncture limb support device according to claim 1, characterized in that: A second sponge layer is arranged on the inner wall of the U-shaped shield of the forearm.

10. A right radial artery puncture limb support device according to claim 1, characterized in that: The clamping assembly also includes a clamping seat that is clamped on the bottom of the bottom plate, an elastic paddle that is clamped on the surface of the bottom plate is provided on the clamping seat, an armrest slot that passes through the left and right side walls of the clamping seat is provided in the center of the bottom of the bottom plate, and abutments are provided on the front and rear side walls of the clamping seat, the abutments include a pull-out plate, and pull rods that horizontally pass through the clamping seat are provided on the left and right sides of the pull-out plate, the inner ends of the two pull rods are connected to an arc-shaped plate arranged in the armrest slot, and spring slots are provided on the side walls of the clamping seat corresponding to the positions of the two pull rods, and springs that are movably sleeved on the pull rods on the corresponding side are provided in the two spring slots.

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