Arm positioning device

Abstract

The utility model discloses an arm positioning device which comprises a bearing plate which is provided with a bearing face extending in the first direction and the second direction which intersect with each other, a holding rod is erected at one end of the bearing plate in the second direction, and a hand passing interval is arranged between the bearing plate and the holding rod. The first limiting plate is fixedly connected with the bearing plate and is convexly arranged on the bearing surface; the second limiting plate is arranged opposite to the first limiting plate in the first direction, is movably connected with the bearing plate and moves in the first direction; and one end of each positioning belt sequentially penetrates through the first limiting plate and the second limiting plate and is connected with the other end in a surrounding manner, and at least two positioning belts are arranged at intervals in the second direction. Through the holding rod, the first limiting plate and the movable second limiting plate, the arm is limited in the first direction and the second direction, the arm fixing device can adapt to arm fixing of patients with different arm widths and arm circumferences, the use range is wide, the positioning effect is improved, and the puncture success rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary tools, in particular to an arm positioning device. Background Art

[0002] The upper arm implantable intravenous drug delivery device uses the basilic vein, brachial vein, and first segment of the axillary vein as the puncture access vessels, implants a catheter, and completely buries the injection seat under the skin of the arm, and remains in the body for a long time. The upper arm infusion port has some unique advantages over the chest wall infusion port: 1. The port seat of the upper arm port is small, which makes the incision of the pouch small, the tunnel short, and the pain is reduced; 2. The pouch incision of the port seat is selected on the inside of the arm, which is more concealed and beautiful. When inserting the infusion needle, the patient only needs to roll up his sleeves, which better protects the patient's privacy and improves the patient's self-confidence and quality of life.

[0003] However, during the maintenance of the upper arm port, a series of operations such as cleaning, disinfection, puncture and fixation of the inner side of the patient's upper arm are required. Therefore, the position and stability of the patient's arm are required to be high. The existing clinical fixation devices have the following problems: 1. They cannot be adjusted according to the patient's arm circumference, which has limitations; 2. The fixation of the arm position is poor, especially during the puncture process, the patient's arm positioning effect is poor, which can easily cause puncture failure. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects in the prior art and provide an arm positioning device that is suitable for fixing different arm circumferences and improves the positioning effect and the success rate of puncture.

[0005] In order to achieve the above technical effects, the technical solution of the utility model is: an arm positioning device, comprising a supporting plate, having a supporting surface extending along a first direction and a second direction intersecting each other, a gripping rod being mounted at one end along the second direction, and a hand-traveling interval being arranged between the gripping rod and the arm positioning device;

[0006] A first limiting plate, fixedly connected to the supporting plate and protruding from the supporting surface;

[0007] A second limiting plate, arranged opposite to the first limiting plate along the first direction, movably connected to the supporting plate and moving along the first direction;

[0008] One end of the positioning belt is sequentially passed through the first limiting plate and the second limiting plate and is enclosed and connected with the other end, and at least two positioning belts are arranged at intervals along the second direction.

[0009] The preferred technical solution is that two support plates are fixedly provided at one end of the supporting plate, guide holes are provided on the two facing surfaces of the two support plates, and the grip rod is provided between the two guide holes and moves along a third direction; the third direction is a direction perpendicular to the supporting surface.

[0010] A preferred technical solution is that the bottoms of the first limiting plate and the second limiting plate are both provided with limiting holes, and the two ends of the positioning belt are sequentially passed through the two limiting holes and enclosed and connected.

[0011] A preferred technical solution is that the inner surfaces of the first limiting plate and the second limiting plate are provided with flexible abutting portions.

[0012] A preferred technical solution is that an airbag is provided on the inner surface of the first limiting plate and / or the second limiting plate.

[0013] A preferred technical solution is that the supporting surface is provided with a guide rail, the length of the guide rail extends along the first direction, and the second limiting plate and the guide rail are connected by a locking member.

[0014] A preferred technical solution is that the second limiting plate has a bottom surface and a top surface relative to each other along the third direction, the locking member includes a bolt and a nut, the head of the bolt is slidably arranged on the guide rail, and the rod of the bolt is sequentially inserted through the bottom surface and the top surface and connected to the nut.

[0015] The advantages and beneficial effects of the utility model are that the arm is limited in a first direction by the cooperation of the first limiting plate and the second limiting plate, and the second limiting plate moves toward or away from the first limiting plate, which can adapt to the arm fixation of patients with different arm widths and arm circumferences and has a wide range of uses.

[0016] By setting the grip, the displacement of the arm in the second direction is limited, the positioning effect is improved, and the success rate of puncture is increased.

[0017] The arm can be limited in the third direction by the cooperation of the support plate and the positioning belt, which can adapt to the arm positioning of patients with different arm heights and arm circumferences. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the arm positioning device of the embodiment (including the flexible abutment portion);

[0019] Figure 2 is a schematic diagram of the three-dimensional structure of an arm positioning device according to another embodiment (including an air bag);

[0020] Figure 3 is a right side view of the arm positioning device of the embodiment;

[0021] The first direction is the width direction of the support plate; the second direction is the length direction of the support plate; the third direction is the thickness direction of the support plate;

[0022] In the figure: X: first direction; Y: second direction; Z: third direction;

[0023] 10. Support plate; 101. Support surface; 11. Guide rail; 20. Grip; 30. First limit plate; 31. Second limit plate; 310. Bottom surface; 311. Top surface; 32. Limit hole; 40. Positioning belt; 50. Support plate; 501. Guide hole; 60. Flexible abutment portion; 70. Airbag; 80. Locking piece; 801. Bolt; 802. Nut. DETAILED DESCRIPTION

[0024] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise specified, “plurality” means more than two; the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc., indicating directions or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection or an indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The first direction X is the width direction of the supporting plate; the second direction Y is the length direction of the supporting plate; and the third direction Z is the thickness direction of the supporting plate.

[0028] like Figure 1-3 As shown, an arm positioning device according to an embodiment includes

[0029] The supporting plate 10 has a supporting surface 101 extending along a first direction and a second direction intersecting each other, and a grip rod 20 is mounted on one end along the second direction, with a hand-passing space provided between the grip rod 20;

[0030] The first limiting plate 30 is fixedly connected to the supporting plate 10 and protrudes from the supporting surface 101;

[0031] The second limiting plate 31 is arranged opposite to the first limiting plate 30 along the first direction, is movably connected to the supporting plate 10 and moves along the first direction;

[0032] One end of the positioning belt 40 is sequentially passed through the first limiting plate 30 and the second limiting plate 31 and is enclosed and connected with the other end, and at least two positioning belts 40 are arranged at intervals along the second direction.

[0033] In this embodiment, the positioning belt 40 fixes the positions of the first limiting plate 30 and the second limiting plate 31 while pressing the arm against the supporting surface 101, thereby limiting the arm in the third direction while assisting the limiting plate to limit the arm in the first direction.

[0034] At least two positioning belts 40 are provided. When two positioning belts 40 are provided, one positioning belt 40 is preferably provided at the wrist of the arm, because the wrist is the part with the smallest circumference of the entire arm. Therefore, the positioning belt 40 provided at the wrist can not only press the arm against the supporting surface 101 to limit the movement of the arm in the third direction, but also limit the movement of the arm in the second direction, so as to achieve a good positioning effect. The other positioning belt 40 is provided in the upper arm fixing area to prevent the upper arm from being displaced due to the bending of the elbow or the movement of the shoulder.

[0035] like Figure 1-3 As shown, in another preferred embodiment, two support plates 50 are fixedly provided at one end of the support plate 10, and guide holes 501 are provided on the two facing surfaces of the two support plates 50. The gripping rod 20 is provided between the two guide holes 501 and moves along a third direction; the third direction is a direction perpendicular to the support surface 101.

[0036] Based on the different thicknesses of the palms of different patients, the hand passage interval between the grip bar 20 and the support plate 10 is adjustable to facilitate the patient's palm to pass through the hand passage interval and hold the grip bar 20 with the palm facing upward.

[0037] When in use, the palm passes under the grip 20, and the grip 20 receives an upward thrust and moves upward; after the palm is placed, the grip 20 is pressed downward on the palm by its own weight.

[0038] like Figure 1-3 As shown, in another preferred embodiment, the bottoms of the first limiting plate 30 and the second limiting plate 31 are both provided with limiting holes 32 , and the two ends of the positioning belt 40 are sequentially passed through the two limiting holes 32 and enclosed and connected.

[0039] The limiting hole 32 is provided through the bottom of the first limiting plate 30 along the thickness direction of the first limiting plate 30 , and the limiting hole 32 on the second limiting plate 31 is arranged opposite to the limiting hole 32 on the first limiting plate 30 along the first direction.

[0040] If the limiting hole 32 is set at the top of the first limiting plate 30 and the second limiting plate 31, the direction of the pressure applied by the positioning belt 40 to the arm tends to be horizontal, and the contact area between the positioning belt 40 and the arm is small, and the positioning effect is poor. Therefore, the limiting hole 32 is set at the bottom of the limiting plate to improve the stability of arm positioning and the success rate of puncture.

[0041] Optionally, the two ends of the positioning belt 40 are connected by Velcro or buttons; the enclosing length of the positioning belt 40 is adjustable. Specifically, taking the Velcro connection as an example, the positioning belt 40 includes an inner surface that fits in contact with the arm and an outer surface that faces away from the inner surface. The outer surface of one end of the positioning belt 40 is provided with a hook surface, and the inner surface of the other end is provided with a furry surface. The enclosing length of the positioning belt 40 is adjusted by the different bonding positions of the furry surface and the hook surface.

[0042] Furthermore, the inner surface of the positioning belt 40 is provided with silicone to prevent the positioning belt 40 from directly contacting the arm and causing injuries such as marks.

[0043] like Figure 1-3 As shown, in another preferred embodiment, the inner surfaces of the first limiting plate 30 and the second limiting plate 31 are provided with flexible abutting portions 60 .

[0044] Optionally, the flexible abutment portion 60 is sponge or rubber to enhance patient comfort.

[0045] like Figure 1-3 As shown, in another preferred embodiment, an airbag 70 is provided on the inner surface of the first limiting plate 30 and / or the second limiting plate 31 .

[0046] An airbag 70 is provided to flexibly fill the gap between the limiting plate and the arm by inflating and deflating the airbag 70, thereby further enhancing the positioning effect and improving the stability of the arm positioning; at the same time, after being inflated, the airbag 70 also has the soft and comfortable effect of the flexible abutment part 60, thereby improving the comfort of the patient.

[0047] like Figure 1-3 As shown, in another preferred embodiment, a guide rail 11 is provided on the supporting surface 101 , the length of the guide rail 11 extends along the first direction, and the second limiting plate 31 and the guide rail 11 are connected via a locking member 80 .

[0048] like Figure 1-3 As shown, in another preferred embodiment, the second limit plate 31 has a bottom surface 310 and a top surface 311 opposite to each other along a third direction, and the locking member 80 includes a bolt 801 and a nut 802, the head of the bolt 801 is slidably arranged on the guide rail 11, and the rod of the bolt 801 is sequentially penetrated through the bottom surface 310 and the top surface 311 and connected to the nut 802.

[0049] The relative position of the second limit plate 31 and the supporting plate 10 is fixed by the locking member 80. The head of the bolt 801 is clamped on the guide rail 11 and moves along the guide rail 11, and the rod of the bolt 801 is sequentially passed through the second limit plate 31 and the nut 802, and the second limit plate 31 and the guide rail 11 are fixed by abutting the nut 802 against the top surface 311 of the second limit plate 31.

[0050] The working process of the arm positioning device of the utility model is as follows (the entire positioning device is placed on the side of the patient's waist, so that the arm placed on the positioning device and the patient's main trunk are in an unfolded state, which is convenient for puncture operation on the upper arm):

[0051] Step 1: Place the patient's arm flat on the support plate 10 with the palm facing upward, and pass the palm through the hand-traveling space between the grip bar 20 and the support surface 101 to hold the grip bar 20;

[0052] Step 2: adjust the position of the second limiting plate 31 according to the width of the patient's arm, so that both sides of the arm abut against the first limiting plate 30 and the second limiting plate 31 at the same time (if a flexible abutment member or an airbag is provided, both sides of the arm abut against the flexible abutment member or the airbag), that is, limit the arm in the first direction; at this time, tighten the positioning belt 40 to limit the arm in the third direction;

[0053] Step 3: Lock the second limiting plate 31 and the supporting plate 10 to fix the relative position of the two;

[0054] Step 4: If the device is equipped with an air bag, inflate the air bag to further fix the arm position. At this point, the complete arm positioning work is completed.

[0055] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An arm positioning device, characterized in that: include A supporting plate (10) having a supporting surface (101) extending along a first direction and a second direction intersecting each other, a gripping rod (20) being mounted on one end along the second direction, and a hand-passing space being provided between the gripping rod (20); A first limiting plate (30) fixedly connected to the supporting plate (10) and protruding from the supporting surface (101); A second limiting plate (31) is arranged opposite to the first limiting plate (30) along the first direction, is movably connected to the supporting plate (10) and moves along the first direction; A positioning belt (40) has one end which is sequentially passed through the first limiting plate (30) and the second limiting plate (31) and is enclosed and connected with the other end, and at least two positioning belts are arranged at intervals along the second direction.

2. The arm positioning device according to claim 1, characterized in that: Two support plates (50) are fixedly arranged at one end of the support plate (10), and guide holes (501) are arranged on two facing surfaces of the two support plates (50), and the gripping rod (20) is arranged between the two guide holes (501) and moves along a third direction; the third direction is a direction perpendicular to the support surface (101).

3. The arm positioning device according to claim 1, characterized in that: The bottoms of the first limiting plate (30) and the second limiting plate (31) are both provided with limiting holes (32), and the two ends of the positioning belt (40) are sequentially passed through the two limiting holes (32) and are enclosed and connected.

4. The arm positioning device according to claim 1, characterized in that: The inner surfaces of the first limiting plate (30) and the second limiting plate (31) are provided with flexible abutment portions (60).

5. The arm positioning device according to claim 1, characterized in that: An air bag (70) is provided on the inner surface of the first limiting plate (30) and / or the second limiting plate (31).

6. The arm positioning device according to claim 2, characterized in that: The supporting surface (101) is provided with a guide rail (11), the length of the guide rail (11) extends along the first direction, and the second limiting plate (31) and the guide rail (11) are connected via a locking member (80).

7. The arm positioning device according to claim 6, characterized in that: The second limiting plate (31) has a bottom surface (310) and a top surface (311) which are opposite to each other along the third direction. The locking member (80) comprises a bolt (801) and a nut (802). The head of the bolt (801) is slidably arranged on the guide rail (11), and the rod of the bolt (801) is sequentially passed through the bottom surface (310) and the top surface (311) and connected to the nut (802).

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