A puncture assisting device for an arm artery

Abstract

The utility model provides a kind of for arm artery's puncture auxiliary device, for solving the problem that the success rate of arm artery puncture is not obviously improved in prior art puncture auxiliary device;It includes arm support, arm lifting assembly and support component;Arm support is arc structure, arm lifting assembly is set in the arc-shaped recess of arm support, for changing the height of arm relative to arc-shaped recess bottom, to make the position of arm artery on arm more prominent;Support component is connected with arm support, for supporting arm support on sickbed;By setting arm lifting assembly in the arc-shaped recess of arm support, the height of arm relative to arc-shaped recess bottom is changed, so that the position of arm artery on arm is more prominent, to facilitate medical staff to carry out puncture operation, improve the success rate and efficiency of puncture.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment, and in particular relates to a puncture assistance device for arteries in the arm. Background Technology

[0002] In the medical field, arterial puncture in the arm is a common procedure, especially radial artery puncture, which is widely used in arterial blood gas analysis, hemodynamic monitoring, and interventional surgery. The radial artery is one of the preferred puncture sites in clinical practice due to its superficial location, ease of access, and low complication rate. However, the success rate of radial artery puncture is affected by various factors, including individual patient differences, operator experience, and patient positioning during puncture.

[0003] Traditional radial artery puncture requires patients to maintain a fixed position for an extended period during and after the procedure, which can cause discomfort and even affect accuracy. To improve patient experience, existing technologies have proposed puncture assistance devices to support the patient's arm during and after the procedure, reducing discomfort from prolonged fixed positioning. However, these devices only provide arm support and do not significantly improve the success rate of radial artery puncture. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a puncture assistance device for the arm artery, so as to solve the problem that the puncture assistance device in the prior art has not significantly improved the success rate of arm artery puncture.

[0005] To achieve the above and other related objectives, this utility model provides a puncture assistance device for the artery in the arm, comprising: an arm support, an arm lifting component, and a support component; the arm support has an arc-shaped structure, and the arm lifting component is disposed in the arc-shaped groove of the arm support to change the height of the arm relative to the bottom of the arc-shaped groove, so that the artery in the arm is more prominent on the arm; the support component is connected to the arm support and is used to support the arm support on the hospital bed.

[0006] Optionally, the arm support includes a forearm support and a rear arm support, which are rotatably connected; the support assembly includes a first support assembly and a second support assembly, the first support assembly being connected to the rear arm support for supporting the rear arm support on the hospital bed; the second support assembly being connected to the forearm support for supporting the forearm support on the hospital bed; the arm lifting assembly includes a first arm lifting assembly and a second arm lifting assembly, the first arm lifting assembly being disposed on the forearm support and the second arm lifting assembly being disposed on the rear arm support.

[0007] Optionally, the first arm lifting assembly and the second arm lifting assembly each include an airbag and an airbag support plate for mounting the airbag; the airbag support plate is slidably connected to the corresponding arm support, and the airbag support plate has an arc-shaped structure, with a mounting cavity for mounting the airbag on the side of the arc-shaped groove away from the corresponding arm support; the airbag is fixedly mounted in the mounting cavity, and the mounting cavity has an opening on the side of the arc-shaped groove away from the corresponding arm support; an air inlet channel and an air outlet channel for communicating with the airbag are provided on the side wall of the mounting cavity.

[0008] Optionally, the forearm support and rear arm support are provided with T-slots, the extension direction of the T-slots being the same as the extension direction of the corresponding arm support; the small end of the T-slot is oriented towards the arc-shaped groove; the arm lifting assembly also includes a mounting plate, the airbag support plate is provided with a protrusion, the extension direction of the protrusion is the same as the extension direction of the corresponding arm support, the protrusion is used to slide with the small end of the T-slot, the mounting plate is connected to the end of the protrusion away from the airbag support plate and is located inside the large end of the T-slot, used to limit the protrusion on the small end of the T-slot; the extension length of the T-slot is greater than the extension length of the protrusion.

[0009] Optionally, the forearm support and the rear arm support are provided with a plurality of first limiting holes in the arc-shaped grooves, and the plurality of first limiting holes are located on the same straight line along the extension direction of the corresponding arm support; the airbag support plate is provided with a first elastic snap-fit ​​member, which is used to connect with the first limiting holes.

[0010] Optionally, the forearm support includes a first forearm sub-support and a second forearm sub-support; the first forearm sub-support is rotatably connected to the rear forearm support, and the second forearm sub-support is slidably disposed on the first forearm support; a T-slot and a first limiting hole are disposed on the second forearm support.

[0011] Optionally, the second forearm support is provided with a plurality of second limiting holes, which are located on the same straight line in the extension direction of the second forearm support; the first forearm support is provided with a second elastic snap-fit ​​member, which is used to connect with the second limiting holes.

[0012] Optionally, the first support assembly includes a first rotating plate, which is rotatably connected to the end of the rear arm rest away from the front arm rest; the first rotating plate is provided with a plurality of third limiting holes, which are arranged in a ring on the first rotating plate with the rotation connection point between the first rotating plate and the rear arm rest as the center; the rear arm rest is provided with a third elastic locking member for engaging with the third limiting holes.

[0013] Optionally, the second support assembly includes a second rotating plate, which is rotatably connected to the end of the forearm support away from the rear arm support; the second rotating plate is provided with a plurality of fourth limiting holes, which are arranged in a ring on the second rotating plate with the rotation connection point between the second rotating plate and the forearm support as the center; the forearm support is provided with a fourth elastic locking member for engaging with the fourth limiting holes.

[0014] As described above, the puncture assistance device for the artery in the arm according to this utility model has at least the following beneficial effects: by setting an arm lifting component in the arc-shaped groove of the arm support, the height of the arm relative to the bottom of the arc-shaped groove of the arm support is changed, thereby making the position of the artery in the arm more prominent, so as to facilitate medical personnel to perform puncture operations and improve the success rate and efficiency of puncture. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of a puncture aid device for arteries in the arm according to the present invention.

[0016] Figure 2 The diagram shown is a structural schematic of the arm lifting assembly and mounting plate of this utility model.

[0017] Figure 3 The diagram shown is a partial structural schematic of the forearm support of this utility model.

[0018] Figure 4 The diagram shows a partial structure of the rear armrest and the first support component of this utility model. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0020] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0022] Please see Figure 1This utility model provides a puncture assistance device for the artery in the arm, including: an arm support, an arm lifting component, and a support component; the arm support has an arc-shaped structure, and the arm lifting component is set in the arc-shaped groove of the arm support to change the height of the arm relative to the bottom of the arc-shaped groove so that the artery in the arm is more prominent on the arm; the support component is connected to the arm support and is used to support the arm support on the hospital bed.

[0023] The arm support can be an arc-shaped groove structure adapted to the shape of the arm, used to support the arm. The arm support may include a forearm support 1 and a rear arm support 2, which are rotatably connected. This rotatable connection simulates the rotatable connection of the human arm at the elbow, ensuring that the forearm support 1 and rear arm support 2 fit the human arm better and achieve the purpose of arm support. Specifically, a pivot can be provided at one end of the forearm support 1, and a through hole for connecting to the pivot can be provided on the rear arm support 2, thus realizing the rotatable connection between the forearm support 1 and rear arm support 2. Furthermore, to facilitate the rotation of the forearm support 1 and rear arm support 2, the connection points of the forearm support 1 and rear arm support 2 are each cut to form an inclined surface to avoid interference between the two during rotation. In one implementation, two telescopic components can also be provided at the connection points of the forearm support 1 and rear arm support 2, which can be linear telescopic components such as cylinders. The fixed ends of the two telescopic components can be connected to the side wall of the forearm support 1 near the bottom of the arc-shaped groove, and the two telescopic components are located on opposite sides of the pivot. The movable ends of the two telescopic components can be hinged to the side wall of the rear arm support 2 near the top of the arc-shaped groove, and the two telescopic components are located on opposite sides of the through hole. In this way, the telescopic components are used to maintain the angle after the forearm support 1 and the rear arm support 2 have rotated a certain angle.

[0024] Please see Figure 1-2The arm lifting assembly may include a first arm lifting assembly 5 and a second arm lifting assembly 6. The first arm lifting assembly 5 is disposed on the forearm support 1, and the second arm lifting assembly 6 is disposed on the rear arm support 2. Specifically, the first arm lifting assembly 5 and the second arm lifting assembly 6 may each include an airbag 51 and an airbag support plate 52 for mounting the airbag 51. The airbag support plate 52 is slidably connected to the corresponding arm support (the airbag support plate 52 of the first arm lifting assembly 5 corresponds to the forearm support 1, and the airbag support plate 52 of the second arm lifting assembly 6 corresponds to the rear arm support 2). The airbag support plate 52 has an arc-shaped structure, and the arc of the airbag support plate 52 is the same as the arc of the arc mechanism of the corresponding arm support, so that after the airbag support plate 52 is installed on the corresponding arm support, the airbag support plate 52 can fit against the inner wall of the arm support. The airbag support plate 52 has a mounting cavity for mounting the airbag 51 on the side away from the arc-shaped groove of the corresponding arm rest. The airbag 51 is fixedly mounted in the mounting cavity, and the mounting cavity has an opening on the side away from the arc-shaped groove of the corresponding arm rest. The side wall of the mounting cavity has an air inlet channel 521 and an air outlet channel 522 for communicating with the airbag 51. In use, when puncturing the artery corresponding to the arm, such as the cubital artery of the arm, the position on the arm corresponding to the puncture of the cubital artery is placed on the airbag 51 of the first arm lifting assembly 5; when puncturing the elbow artery of the arm, the position on the arm corresponding to the puncture of the elbow artery is placed on the airbag 51 of the second arm lifting assembly 6. After the arm is positioned, the airbag 51 takes in air through the air inlet channel 521 located on the side wall of the mounting cavity, causing the airbag 51 to inflate. Since the airbag 51 is fixed inside the mounting cavity, and the mounting cavity has an opening, the deformation of the airbag 51 expands outward through the opening of the mounting cavity, thereby making the corresponding artery on the arm more prominent, facilitating puncture of the elbow artery or cubital artery by medical personnel. After use, the airbag 51 can be deflated through the deflation channel of the airbag support plate 52 to return it to an uninflated state. It is understood that a one-way valve can be provided in the air inlet channel 521 to prevent air from leaking out of the airbag 51. Inflation of the airbag 51 can be achieved using tools such as an air pump; this embodiment does not impose any limitations on this. An air plug may be provided on the deflation channel. When inflating, the air plug blocks the deflation channel to prevent air from overflowing from the airbag 51. The air plug is a structure of the prior art, and this embodiment does not limit it.

[0025] T-slots 8 can be provided on the forearm support 1 and the rear arm support 2. The extension direction of the T-slots 8 is the same as the extension direction of the corresponding arm support (the T-slots 8 of the forearm support 1 correspond to the forearm support 1, and the T-slots 8 of the rear arm support 2 correspond to the rear arm support 2). The small end of the T-slots 8 is set towards the arc-shaped groove. The arm lifting assembly also includes a mounting plate 7. A protrusion 523 is provided on the airbag support plate 52. The extension direction of the protrusion 523 is the same as the extension direction of the corresponding arm support. The protrusion 523 is used to slide with the small end of the T-slots 8. The mounting plate 7 is connected to the end of the protrusion 523 away from the airbag support plate 52 and is located in the large end of the T-slots 8. It is used to limit the protrusion 523 on the small end of the T-slots 8. The extension length of the T-slots 8 is greater than the extension length of the protrusion 523. That is, the airbag support plate 52 can slide in the arc-shaped groove of the corresponding arm support to change the position of the airbag support plate 52 in the corresponding arm support to adapt to the arm length of different people. The convex strip 523 and the T-slot 8 can each be set to two, such as Figure 2 As shown, one of the protrusions 523 is located on the left end of the airbag support plate 52, and the other protrusion 523 is located on the right end of the airbag support plate 52. The mounting plate 7 and the protrusions 523 can be connected by screws or other structures to prevent the protrusions 523 from coming out of the T-slot 8.

[0026] Please see Figure 1 Multiple first limiting holes 9 are provided in the arc-shaped grooves of the forearm support 1 and the rear arm support 2. These first limiting holes 9 are located on the same straight line along the extension direction of the corresponding arm support. A first elastic locking member 524 is provided on the airbag support plate 52, which is used to connect with the first limiting holes 9. The first limiting hole 9 is a blind hole structure set in the groove of the corresponding arm support. The first elastic locking member 524 can be a spring plunger structure, which is fixedly set on the airbag support plate 52, and its locking part (when the first elastic locking member 524 is a spring plunger, the locking part is a spherical structure of the front section of the spring plunger) protrudes from the bottom of the airbag support plate 52. After the airbag support plate 52 slides within the corresponding arm support, the cooperation between the first elastic locking member 524 and the first limiting hole 9 is used to limit the position of the airbag support plate 52, preventing the position of the airbag support plate 52 from changing when the airbag 51 is inflated or deflated.

[0027] Please see Figure 1-3The forearm support 1 may include a first forearm sub-support 11 and a second forearm sub-support 12; the first forearm sub-support 11 is rotatably connected to the rear forearm support 2, and the second forearm sub-support 12 is slidably disposed on the first forearm sub-support 11; a T-slot 8 and a first limiting hole 9 are disposed on the second forearm sub-support 12. Specifically, the second forearm sub-support 12 may be provided with a plurality of second limiting holes 121, the second limiting holes 121 being located on the same straight line in the extending direction of the second forearm sub-support 12; the first forearm support 11 may be provided with a second elastic snap-fit ​​member 111, the second elastic snap-fit ​​member 111 being used to connect with the second limiting holes 121. The second limiting hole 121 may be a blind hole structure, and the second elastic snap-fit ​​member 111 may be a spring plunger structure, which is disposed at the bottom of the first forearm sub-support 11, for cooperating with the second limiting hole 121 to achieve the fixation of the second forearm sub-support 12 and the first forearm support 11. By configuring the first forearm support 11 and the second forearm support 12, the length of the forearm support 1 can be changed to accommodate forearm lengths of different populations. In an optional embodiment, the posterior arm support 2 can also be divided into a first posterior arm support and a second posterior arm support, and the first posterior arm support and the second posterior arm support are also slidably connected to adapt to the posterior arm lengths of different populations, thereby improving the applicability of the puncture assistance device.

[0028] Please see Figure 1 The support components may include a first support component 3 and a second support component. The first support component 3 is connected to the rear arm support 2 and is used to support the rear arm support 2 on the hospital bed. The second support component is connected to the forearm support 1 and is used to support the forearm support 1 on the hospital bed. Through the function of the first support component 3 and the second support component, two-point positioning is achieved, ensuring the stability of the puncture auxiliary device during use.

[0029] Please see Figure 1 , 4The first support assembly 3 may include a first rotating plate 31, which is rotatably connected to the end of the rear arm support 2 away from the front arm support 1. The first rotating plate 31 is provided with multiple third limiting holes 311, arranged in a ring around the rotational connection point between the first rotating plate 31 and the rear arm support 2. The rear arm support 2 is provided with third elastic locking members for engaging with the third limiting holes 311. The connection point between the first rotating plate 31 and the rear arm support 2 may be located at the bottom of the rear arm support 2, and the two can be rotatably connected via a rotating shaft. The third limiting holes 311 can be blind holes or through holes. The multiple third elastic locking members are spring plunger structures, fixedly mounted on the rear arm support 2. After the first rotating plate 31 rotates relative to the rear arm support 2 at a certain angle, the cooperation between the third elastic locking members and the third limiting holes 311 achieves the fixation of the first rotating plate 31 relative to the rear arm support 2. In use, the end of the first rotating plate 31 furthest from the rear armrest 2 can be positioned between the mattress and the bed, thus utilizing the weight of the patient and the mattress to fix the first rotating plate 31. Of course, in other implementations, the first rotating plate 31 can be fixed to the bed in other ways, and this embodiment does not limit this. Furthermore, in this embodiment, the second support assembly includes a second rotating plate, which is rotatably connected to the end of the forearm rest furthest from the rear armrest. The second rotating plate is provided with multiple fourth limiting holes, arranged in a ring around the rotational connection point between the second rotating plate and the forearm rest. The forearm rest is provided with a fourth elastic locking member for engaging with the fourth limiting holes. The specific structures of the second rotating plate, the fourth limiting holes, and the fourth elastic locking member are the same as those of the first rotating plate, the third limiting hole, and the third elastic locking member of the first support assembly, and will not be described in detail here. Of course, in other implementations, the second support assembly can also adopt other implementation methods, and this embodiment does not limit this.

[0030] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A puncture aid device for arteries in the arm, characterized in that, include: Armrest, arm lifting assembly, and support assembly; The arm support has an arc-shaped structure, and the arm lifting component is set in the arc-shaped groove of the arm support to change the height of the arm relative to the bottom of the arc-shaped groove, so that the position of the brachial artery on the arm is more prominent. The support assembly is connected to the armrest and is used to support the armrest on the hospital bed; The arm support includes a forearm support and a rear arm support, and the forearm support and the rear arm support are rotatably connected; The support assembly includes a first support assembly and a second support assembly. The first support assembly is connected to the rear arm support and is used to support the rear arm support on the hospital bed. The second support assembly is connected to the forearm support and is used to support the forearm support on the hospital bed. The arm lifting assembly includes a first arm lifting assembly and a second arm lifting assembly, wherein the first arm lifting assembly is disposed on the forearm support and the second arm lifting assembly is disposed on the rear arm support; The first arm lifting assembly and the second arm lifting assembly each include an airbag and an airbag support plate for mounting the airbag; The airbag support plate is slidably connected to the corresponding armrest. The airbag support plate has an arc-shaped structure, and an installation cavity for installing the airbag is provided on the side of the arc-shaped groove away from the corresponding armrest. The airbag is fixedly installed in the installation cavity, and the side of the installation cavity away from the arc-shaped groove of the corresponding armrest has an opening. The side wall of the mounting cavity is provided with an air inlet channel and an air outlet channel for communicating with the airbag.

2. The puncture assistance device for an artery in the arm according to claim 1, characterized in that: The forearm support and the rear arm support are provided with T-shaped grooves, and the extension direction of the T-shaped grooves is the same as the extension direction of the corresponding arm support; the small end of the T-shaped groove is oriented towards the arc-shaped groove. The arm lifting assembly also includes a mounting plate. The airbag support plate is provided with a protrusion. The extension direction of the protrusion is the same as the extension direction of the corresponding arm support. The protrusion is used to slide and connect with the small end of the T-slot. The mounting plate is connected to the end of the protrusion away from the airbag support plate and is located inside the large end of the T-slot, which is used to limit the protrusion on the small end of the T-slot. The extension length of the T-slot is greater than the extension length of the convex strip.

3. The puncture assistance device for an artery in the arm according to claim 2, characterized in that: The forearm support and the rear arm support are provided with a plurality of first limiting holes in the arc-shaped grooves, and the plurality of first limiting holes are located on the same straight line along the extension direction of the corresponding arm support. The airbag support plate is provided with a first elastic snap-fit ​​component, which is used to connect with the first limiting hole.

4. The puncture assistance device for an artery in the arm according to claim 3, characterized in that: The forearm brace includes a first forearm sub-brace and a second forearm brace. The first forearm support is rotatably connected to the rear arm support, and the second forearm support is slidably disposed on the first forearm support; The T-slot and the first limiting hole are disposed on the second forearm support.

5. A puncture aid device for an artery in the arm according to claim 4, characterized in that: The second forearm support is provided with a plurality of second limiting holes, which are located on the same straight line in the extension direction of the second forearm support; the first forearm support is provided with a second elastic snap-fit ​​member, which is used to connect with the second limiting holes.

6. The puncture aid device for an artery in the arm according to claim 1, characterized in that: The first support assembly includes a first rotating plate, which is rotatably connected to the end of the rear arm rest away from the front arm rest; the first rotating plate is provided with a plurality of third limiting holes, which are arranged in a ring on the first rotating plate with the rotation connection point between the first rotating plate and the rear arm rest as the center. The rear arm support is provided with a third elastic locking member for engaging with the third limiting hole.

7. A puncture aid device for an artery in the arm according to claim 6, characterized in that: The second support assembly includes a second rotating plate, which is rotatably connected to the end of the forearm support away from the rear arm support; the second rotating plate is provided with a plurality of fourth limiting holes, which are arranged in a ring on the second rotating plate with the rotational connection point between the second rotating plate and the forearm support as the center; the forearm support is provided with a fourth elastic locking member for engaging with the fourth limiting holes.

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