Arm fixator

Abstract

The utility model relates to the field of medical instruments, in particular to an arm fixator. A first brace and a second brace of the arm fixator are hinged, the first brace is used for fixing the upper arm of a patient, and the second brace is used for fixing the forearm of the patient; the needle tube holder is detachably connected with the first brace and the second brace, is opposite to the hinged part of the first brace and the second brace, is positioned above the middle of the elbow of the upper limb of the patient, and is used for mounting and fixing an injection tube and an injection needle for injecting a contrast agent; the limiting assembly is connected with the first supporting tool and the second supporting tool and used for limiting relative rotation between the first supporting tool and the second supporting tool. The arm fixator can play a role in fixing an injection needle and an injection tube for injecting a contrast agent, and can play a role in fixing the upper limbs of a patient and preventing the upper limbs of the patient from bending, so that normal injection of the contrast agent can be guaranteed, normal proceeding of CT enhanced examination is ensured, and the patient is protected.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular, to an arm fixator. Background Art

[0002] At present, enhanced CT examination requires the injection of iodine contrast agent into the patient's blood vessels, so that the drug in the blood vessels can play a contrasting role, clarify the boundaries between the blood vessels and the surrounding lesions, and then identify the blood supply of the lesions, so as to more clearly observe the condition and find the lesions. However, during the contrast agent injection step, it is easy to accidentally touch the needle or puncture the blood vessel due to the bending of the upper limbs of the patient while waiting for the examination, thereby affecting the injection of the contrast agent, or causing the blood vessel to rupture and cause heavy bleeding, thus affecting the safety of the patient. Utility Model Content

[0003] The present application provides an arm fixer to improve the above-mentioned problem.

[0004] The utility model is specifically as follows:

[0005] An arm fixer comprises a first brace, a second brace, a needle tube support and a limit assembly;

[0006] The first brace is hinged to the second brace, and the first brace is used to fix the patient's upper arm, and the second brace is used to fix the patient's forearm;

[0007] The needle tube support is detachably connected to the first support and the second support, and is directly opposite to the hinge of the first support and the second support, and is located above the center of the elbow of the patient's upper limb. The needle tube support is used to install and fix the injection tube and injection needle for injecting contrast medium;

[0008] The limiting assembly is connected to the first support and the second support, and is used to limit the relative rotation between the first support and the second support.

[0009] In one embodiment of the utility model, the limiting assembly includes a limiting rod, a limiting pin, a limiting member and a rotating member;

[0010] The limiting rod is rotatably connected to the first support, and a strip-shaped hole is formed along the extending direction of the limiting rod;

[0011] The limiting pin is connected to the second support and slidably matched with the strip-shaped hole, the limiting piece is sleeved on the limiting pin, the rotating piece is threadedly connected to the limiting pin and abuts against the limiting piece;

[0012] The rotating member is used to rotate relative to the limiting pin under the action of external force, so as to drive the limiting member to move in the direction of pressing the limiting rod or in the opposite direction.

[0013] In an embodiment of the utility model, a plurality of limiting teeth engaged with the limiting member are provided on the side surface of the limiting rod, and the limiting teeth are sequentially arranged along the extension direction of the strip-shaped hole and located on one side of the strip-shaped hole.

[0014] In one embodiment of the utility model, the first brace includes a first bottom plate, a first fixing plate and a first connecting belt, the first fixing plate is connected to the first bottom plate, the first connecting belt is detachably connected to the first fixing plate, and the first connecting belt is used to press the upper arm placed on the first fixing plate;

[0015] The second brace includes a second base plate, a second fixing plate and a second connecting belt, the second fixing plate is connected to the second base plate, the second connecting belt is detachably connected to the second fixing plate, and the second connecting belt is used to press the forearm placed on the second fixing plate.

[0016] In one embodiment of the utility model, the first brace further includes a first pressure pad, and the first brace is configured with a plurality of first connecting belts, the plurality of first connecting belts are all connected to the first pressure pad, and are spaced apart along the extension direction of the first brace;

[0017] The second brace also includes a second pressure pad, and the second brace is configured with a plurality of second connecting belts, which are all connected to the second pressure pad and are spaced apart along the extension direction of the second brace.

[0018] In an embodiment of the present invention, hollow portions are formed on the sides of the first fixing plate and the second fixing plate.

[0019] In one embodiment of the present invention, the arm fixer further includes a first airbag cushion connected to the first fixing plate and a second airbag cushion connected to the second fixing plate.

[0020] In one embodiment of the present utility model, the needle tube support includes a support plate, a third connecting belt, a fourth connecting belt and at least one fifth connecting belt;

[0021] The third connecting belt is connected to the support plate and is detachably connected to the first support; the fourth connecting belt is connected to the support plate and is detachably connected to the second support; the fifth connecting belt is connected to the support plate and is used to bind the injection tube and the injection needle.

[0022] In one embodiment of the utility model, the connection point between the fifth connecting belt and the support plate is located between the connection point between the third connecting belt and the support plate and the connection point between the fourth connecting belt support and the support plate.

[0023] In an embodiment of the present invention, the third connecting belt is bonded to the first brace via Velcro, and the fourth connecting belt is bonded to the second brace via Velcro.

[0024] The beneficial effects of the utility model are:

[0025] The arm fixer includes a first brace, a second brace, a needle tube support and a limiting assembly; the first brace is hinged with the second brace, and the first brace is used to fix the patient's upper arm, and the second brace is used to fix the patient's forearm; the needle tube support is detachably connected to the first brace and the second brace, and is directly opposite to the hinge of the first brace and the second brace, and is located above the center of the elbow of the patient's upper limb, and the needle tube support is used to install and fix the injection tube and injection needle for injecting contrast agent; the limiting assembly is connected to the first brace and the second brace, and is used to limit the relative rotation between the first brace and the second brace. The arm fixator can fix the injection needle and the injection tube for injecting contrast agent, thereby maintaining the position for injecting contrast agent, and can also fix the patient's upper limbs to prevent the patient's upper limbs from bending, thereby preventing the injection needle and the injection tube from changing position or deforming, thereby preventing the blood vessel injection needle from breaking or changing position, thereby puncturing the blood vessel and affecting the injection of contrast agent, thereby ensuring the normal injection of contrast agent, thereby ensuring the normal progress of CT enhanced examination, and protecting the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of the arm fixer provided for this application;

[0028] Figure 2 A schematic diagram of the structure of the limit assembly provided for this application;

[0029] Figure 3 for Figure 2 Partial schematic diagram at point A in the middle.

[0030] Icons: 100-arm fixer; 110-first brace; 120-second brace; 130-needle tube support; 140-limiting assembly; 101-hollow portion; 111-first base plate; 112-first fixing plate; 113-first connecting belt; 121-second base plate; 122-second fixing plate; 123-second connecting belt; 114-first pressure pad; 124-second pressure pad; 131-support plate; 132-third connecting belt; 133-fourth connecting belt; 134-fifth connecting belt; 141-limiting rod; 142-limiting pin; 143-limiting member; 144-rotating member; 145-strip hole; 146-limiting tooth. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the embodiments of the present application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" 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 direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Please refer to Figure 1-Figure 3 , this embodiment provides an arm fixer 100, including a first brace 110, a second brace 120, a needle tube support 130 and a limit assembly 140;

[0038] The first brace 110 is hinged to the second brace 120, and the first brace 110 is used to fix the patient's upper arm, and the second brace 120 is used to fix the patient's forearm;

[0039] The needle tube support 130 is detachably connected to the first brace 110 and the second brace 120, and is located directly above the center of the elbow of the patient's upper limb. The needle tube support 130 is used to install and fix the injection tube and injection needle for injecting contrast medium;

[0040] The limiting assembly 140 is connected to the first bracket 110 and the second bracket 120 , and is used to limit the relative rotation between the first bracket 110 and the second bracket 120 .

[0041] Please refer to Figure 1-Figure 3 , the working principle of the arm fixer 100 is:

[0042] The arm fixer 100 includes a first support 110, a second support 120, a needle tube support 130 and a limit assembly 140;

[0043] The first brace 110 and the second brace 120 are hinged, and the first brace 110 is used to fix the patient's upper arm, and the second brace 120 is used to fix the patient's forearm; the limiting component 140 is connected to the first brace 110 and the second brace 120, and is used to limit the relative rotation between the first brace 110 and the second brace 120; during use, the patient's upper limb can be fixed by the first brace 110 and the second brace 120, and during the fixation process, the first brace 110 and the second brace 120 can be adjusted to a bending angle adapted to the patient's upper limb through the relative rotation between the first brace 110 and the second brace 120, thereby improving the comfort of upper limb fixation, and the relative angle between the first brace 110 and the second brace 120 can be maintained by the limiting component 140, thereby ensuring that the fixed state of the upper limb remains unchanged;

[0044] At the same time, since the needle tube holder 130 is detachably connected to the first brace 110 and the second brace 120, and is located directly above the center of the elbow of the patient's upper limb, the needle tube holder 130 is used to install and fix the injection tube and injection needle for injecting contrast medium; since the insertion position of the injection needle is located at the center of the elbow of the upper limb, the arm fixer 100 can fix the injection needle and injection tube for injecting contrast medium through the needle tube holder 130, thereby maintaining the position of injecting contrast medium;

[0045] In summary, the arm fixator 100 can fix the patient's upper limbs and prevent the patient's upper limbs from bending, thereby preventing the injection needle and the injection tube from changing position or deforming, thereby preventing the vascular injection needle from breaking or changing position, puncturing the blood vessel and affecting the injection of the contrast agent, thereby ensuring the normal injection of the contrast agent, thereby ensuring the normal progress of the CT enhanced examination and protecting the patient.

[0046] For further information, please refer to Figure 1-Figure 3 In this embodiment, when configuring the first brace 110, the first brace 110 includes a first bottom plate 111, a first fixing plate 112 and a first connecting belt 113, the first fixing plate 112 is connected to the first bottom plate 111, the first connecting belt 113 is detachably connected to the first fixing plate 112, and the first connecting belt 113 is used to press the upper arm placed on the first fixing plate 112;

[0047] When configuring the second brace 120, the second brace 120 includes a second base plate 121, a second fixing plate 122 and a second connecting belt 123. The second fixing plate 122 is connected to the second base plate 121, the second connecting belt 123 is detachably connected to the second fixing plate 122, and the second connecting belt 123 is used to press the forearm placed on the second fixing plate 122.

[0048] Thus, the above structure can be used to place the upper arm and the forearm on the first fixing plate 112 and the second fixing plate 122 respectively, and the first connecting belt 113 and the second connecting belt 123 can be used to fix the patient's upper limbs to prevent the upper limbs from bending.

[0049] Moreover, in order to improve the comfort of the patient during the process of fixing the patient's upper limb, the first brace 110 further includes a first pressure pad 114, and the first brace 110 is configured with a plurality of first connecting belts 113, the plurality of first connecting belts 113 are all connected to the first pressure pad 114, and are arranged at intervals along the extension direction of the first brace 110; the second brace 120 further includes a second pressure pad 124, and the second brace 120 is configured with a plurality of second connecting belts 123, the plurality of second connecting belts 123 are all connected to the second pressure pad 124, and are arranged at intervals along the extension direction of the second brace 120.

[0050] Through the above-mentioned structural setting, in the process of fixing the patient's upper limb, the contact area with the patient's upper arm and forearm can be increased through the deformation of the first pressure pad 114 and the second pressure pad 124, thereby reducing the discomfort caused to the patient by the first connecting belt 113 and the second connecting belt 123. In addition, in order to improve air permeability, the sides of the first fixing plate 112 and the second fixing plate 122 are provided with a hollow portion 101. In addition, in order to improve comfort, the arm fixer 100 also includes a first airbag cushion connected to the first fixing plate 112 and a second airbag cushion connected to the second fixing plate 122, so that the contact area with the patient is increased through the setting of the first airbag cushion and the second airbag cushion, thereby reducing the discomfort caused to the patient when the first connecting belt 113 and the second connecting belt 123 press the upper arm and forearm on the first fixing plate 112 and the second fixing plate 122. In addition, when configuring the first airbag cushion and the second airbag cushion, multiple air guide columns can also be configured on their structure to increase air permeability.

[0051] It should also be noted that, based on the above structure, this embodiment adopts a hinged connection between the first base plate 111 and the second base plate 121, and through the arrangement of the first base plate 111 and the second base plate 121, it is convenient to connect the arm fixer 100 with the external structure. At the same time, the limiting component 140 adopts a connection method with the first base plate 111 and the second base plate 121.

[0052] Specifically, in the present embodiment, the limiting assembly 140 includes a limiting rod 141, a limiting pin 142, a limiting member 143 and a rotating member 144; the limiting rod 141 is rotatably connected to the first bracket 110, and the limiting rod 141 is provided with a strip hole 145 along its extension direction; the limiting pin 142 is connected to the second bracket 120 and is slidably matched with the strip hole 145, the limiting member 143 is sleeved on the limiting pin 142, and the rotating member 144 is threadedly connected to the limiting pin 142 and abuts against the limiting member 143; wherein the rotating member 144 is used to rotate relative to the limiting pin 142 under the action of an external force, so as to drive the limiting member 143 to move in the direction of pressing the limiting rod 141 or in the opposite direction.

[0053] It can be understood that the limiting rod 141 of the limiting assembly 140 is rotatably connected to the first base plate 111, and the limiting pin 142 is connected to the second base plate 121. Therefore, during use, the rotating member 144 can be rotated to adjust the abutment state between the limiting member 143 and the limiting rod 141, thereby adjusting the rotation state of the first bracket 110 and the second bracket 120.

[0054] When the first brace 110 and the second brace 120 are in a locked state, the rotating member 144 presses the limiting member 143 against the limiting rod 141, thereby limiting the sliding of the limiting pin 142 relative to the strip hole 145, thereby limiting the relative rotation between the first brace 110 and the second brace 120; and when the first brace 110 and the second brace 120 are in an unlocked state, the rotating member 144 is in a relaxed state, and the limiting member 143 is not pressed against the limiting rod 141, therefore, the limiting pin 142 can slide relative to the strip hole 145, thereby allowing the first brace 110 and the second brace 120 to rotate relatively to adapt to the curvature of the patient's upper limb.

[0055] On the basis of the above structure, in order to improve the stability in the locked state, a plurality of limiting teeth 146 engaging with the limiting member 143 are provided on the side of the limiting rod 141, and the limiting teeth 146 are sequentially arranged along the extending direction of the strip hole 145 and are located on one side of the strip hole 145. That is, the limiting member 143 limits the sliding of the limiting pin 142 relative to the strip hole 145 by engaging with the limiting teeth 146, thereby improving its stability in the locked state.

[0056] For further information, please refer to Figure 1-Figure 3 In this embodiment, when the syringe support 130 is set, it may include a support plate 131, a third connecting belt 132, a fourth connecting belt 133 and at least one fifth connecting belt 134; the third connecting belt 132 is connected to the support plate 131 and is detachably connected to the first support 110; the fourth connecting belt 133 is connected to the support plate 131 and is detachably connected to the second support 120; the fifth connecting belt 134 is connected to the support plate 131 and is used to bind the injection tube and the injection needle.

[0057] With such a setting, the support plate 131 can be connected to the top of the center of the patient's elbow through the third connecting belt 132 and the fourth connecting belt 133, and the injection tube and the injection needle can be tied through the fifth connecting belt 134, thereby fixing the injection tube and the injection needle.

[0058] During use, in order to enable the support plate 131 to be located above the center of the patient's elbow, the connection between the fifth connection belt 134 and the support plate 131 is located between the connection between the third connection belt 132 and the support plate 131 and the connection between the fourth connection belt 133 and the support plate 131. In addition, in order to facilitate the disassembly and assembly of the injection tube and the injection needle, the third connection belt 132 is bonded to the first support 110 through a Velcro, and the fourth connection belt 133 is bonded to the second support 120 through a Velcro.

[0059] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An arm fixer, characterized in that: The arm fixer includes a first support, a second support, a needle tube support and a limit assembly; The first brace is hinged to the second brace, and the first brace is used to fix the patient's upper arm, and the second brace is used to fix the patient's forearm; The needle tube support is detachably connected to the first brace and the second brace, and is directly opposite to the hinge of the first brace and the second brace, and is located above the center of the elbow of the patient's upper limb. The needle tube support is used to install and fix the injection tube and injection needle for injecting contrast agent; The limiting assembly is connected to the first support and the second support, and is used to limit the relative rotation between the first support and the second support.

2. The arm fixer according to claim 1, characterized in that: The limiting assembly includes a limiting rod, a limiting pin, a limiting member and a rotating member; The limiting rod is rotatably connected to the first support, and the limiting rod is provided with a strip-shaped hole along its extending direction; The limiting pin is connected to the second support and slidably matched with the strip-shaped hole, the limiting piece is sleeved on the limiting pin, and the rotating piece is threadedly connected to the limiting pin and abuts against the limiting piece; Wherein, the rotating member is used to rotate relative to the limiting pin under the action of external force, so as to drive the limiting member to move in the direction of pressing the limiting rod or in the opposite direction.

3. The arm fixer according to claim 2, characterized in that: A plurality of limiting teeth engaged with the limiting member are provided on the side surface of the limiting rod, and the limiting teeth are sequentially arranged along the extending direction of the strip-shaped hole and are located on one side of the strip-shaped hole.

4. The arm fixer according to claim 1, characterized in that: The first brace includes a first bottom plate, a first fixing plate and a first connecting belt, wherein the first fixing plate is connected to the first bottom plate, the first connecting belt is detachably connected to the first fixing plate, and the first connecting belt is used to compress the upper arm placed on the first fixing plate; The second brace includes a second base plate, a second fixing plate and a second connecting belt, the second fixing plate is connected to the second base plate, the second connecting belt is detachably connected to the second fixing plate, and the second connecting belt is used to press the forearm placed on the second fixing plate.

5. The arm fixer according to claim 4, characterized in that: The first support also includes a first pressure pad, and the first support is configured with a plurality of the first connecting belts, the plurality of the first connecting belts are all connected to the first pressure pad, and are arranged at intervals along the extension direction of the first support; The second brace also includes a second pressure pad, and the second brace is configured with a plurality of second connecting belts, which are all connected to the second pressure pad and are spaced apart along the extension direction of the second brace.

6. The arm fixer according to claim 4, characterized in that: The sides of the first fixing plate and the second fixing plate are both provided with hollow parts.

7. The arm fixer according to claim 4, characterized in that: The arm fixer also includes a first airbag cushion connected to the first fixing plate and a second airbag cushion connected to the second fixing plate.

8. The arm fixer according to claim 1, characterized in that: The needle tube support comprises a support plate, a third connecting belt, a fourth connecting belt and at least one fifth connecting belt; The third connecting belt is connected to the support plate and is detachably connected to the first support; the fourth connecting belt is connected to the support plate and is detachably connected to the second support; the fifth connecting belt is connected to the support plate and is used to bind the injection tube and the injection needle.

9. The arm fixer according to claim 8, characterized in that: The connection point between the fifth connecting belt and the support plate is located between the connection point between the third connecting belt and the support plate and the connection point between the fourth connecting belt support and the support plate.

10. The arm fixer according to claim 8, characterized in that: The third connecting belt is bonded to the first brace via a Velcro tape, and the fourth connecting belt is bonded to the second brace via a Velcro tape.

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