Fixing protector for pediatric radial artery cannula

Abstract

The utility model belongs to the technical field of medical treatment. The utility model discloses a pediatric radial artery cannula fixing protector which comprises a main cushion body used for positioning and placing upper limbs of a pediatric patient. Auxiliary pad structures which can move relative to the main pad body to adjust the placement size so as to adapt to children patients with different arm lengths and are used for positioning and placing forearms and palms of corresponding upper limbs of the children patients are arranged at the two ends of the main pad body; and a main fixing structure and an auxiliary fixing structure which are used for limiting the position and activity of the placed limb are respectively arranged on the main pad body and the auxiliary pad structure. The radial artery cannula has the advantages that the size can be automatically adjusted to adapt to different pediatric patients so as to safely limit the limb wrist bending movement of the pediatric patients, and the radial artery cannula is not prone to accidentally falling off.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and more specifically, to a pediatric radial artery catheter fixation and protection device. Background Technology

[0002] In hospital clinical practice, for critically ill children, especially those who have undergone surgery for congenital heart disease, radial artery cannulas are usually placed in their upper limbs to facilitate continuous blood pressure monitoring and blood sample collection. However, in clinical practice, due to the young age of these children, difficulties in communication, and poor compliance, excessive wrist flexion of the limb with the radial artery cannula can easily cause the components used to fix the radial artery cannula to loosen. This can lead to the radial artery cannula becoming loose, causing bleeding or oozing at the cannula insertion site, and in severe cases, even accidental dislodgement of the radial artery cannula, posing a danger and causing pain to the child.

[0003] Currently, the most common clinical practice is to use adhesive tape to bind a hard box or plate to the wrist of a pediatric patient to restrict their wrist movement. While this can effectively limit the limb movement and wrist flexion, it still has the following problems:

[0004] 1. The method of limiting wrist flexion movement of children by using a fixed-size hard box or hard plate that is bound to the wrist of the child patient. The fixed-size hard box or hard plate does not have an adjustment function to adapt to the corresponding child patient, and its applicability is poor.

[0005] 2. Using adhesive tape to fix hard boxes or hard panels can lead to the tape coming loose, which could pull on the radial artery cannula and cause it to fall out accidentally, making it difficult to meet the actual application requirements.

[0006] How to solve the above problems has become an urgent technical issue. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a pediatric radial artery cannula fixation and protection device that can be independently adjusted in size to fit different pediatric patients, safely restrict their limb flexion and wrist movements, and is less likely to cause accidental dislodgement of the radial artery cannula.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A pediatric radial artery catheterization fixation and protection device includes a main pad for positioning and placing a pediatric patient's upper limb; at both ends of the main pad, there are auxiliary pad structures that can move relative to the main pad to adjust the placement size and adapt to pediatric patients with different arm lengths for positioning and placing their corresponding upper limbs, for the forearm and palm; and a main fixation structure and an auxiliary fixation structure are respectively provided on the main pad and the auxiliary pad structures for limiting the position and movement of the placed limb.

[0010] Preferably, the auxiliary pad structure includes a groove formed at the bottom of a corresponding end of the main pad body, with one end of the groove passing through the outer end of the main pad body and communicating with the outside. An auxiliary pad body is movably mounted on the groove, which can be adjusted relative to the main pad body to increase the placement size. A baffle is also provided on the bottom of the corresponding end of the main pad body, located on the opening side of the corresponding groove, for limiting one end of the auxiliary pad body located in the groove within the groove. A bolt is provided on the top of the side of the main pad body near the corresponding baffle for firmly securing the auxiliary pad body to the main pad body. The auxiliary fixing structure is provided on the auxiliary pad body.

[0011] Preferably, the auxiliary fixing structure includes an installation opening on the top of one side of the auxiliary pad body, and a limiting opening on the top of the other side of the auxiliary pad body away from the installation opening. An auxiliary fixing strap is provided on the installation opening for overlapping and cooperating with the limiting opening to position the limb located on the auxiliary pad body. A hook and loop fastener is provided at one end of the auxiliary fixing strap near the installation opening, and a hook and loop fastener is provided at one end of the auxiliary fixing strap away from the installation opening to adhere and cooperate with the hook and loop fastener to securely fix the limb placed on the auxiliary pad body to the auxiliary pad body.

[0012] Preferably, the main fixing structure includes an adhesive strip disposed on one side wall of the main pad body, and a slide rail disposed on the top of the other side of the main pad body away from the adhesive strip. The slide rail is provided with a plurality of main limiting components that can move relative to the slide rail and are used to adhere and cooperate with the adhesive strip to limit the position and movement of the limb placed on the main pad body.

[0013] Preferably, the main limiting component includes a slider movably mounted on the slide rail, an adhesive tape for adhering to and engaging with the adhesive strip on the inner top of the slider, a screw threadedly connected to the top of the slider for securely limiting the slider on the slide rail, and a partition strip located on the inner top of the slider for isolating the adhesive tape from the limb skin to avoid friction damage when the limb is placed on the main pad body by the adhesive tape.

[0014] Preferably, a pressure-reducing pad is embedded in the top of both the main pad and the auxiliary pad to improve comfort during operation by contacting the limb skin.

[0015] Preferably, the pressure-relieving pad is a pressure-relieving pad structure made of a sponge body wrapped in a cotton sleeve, and the pressure-relieving pad is embedded on the top of the main pad body or the auxiliary pad body through the cotton sleeve.

[0016] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0017] In this invention, after radial artery cannulation is performed on a pediatric patient in clinical practice, the forearm length requirement of the corresponding upper limb is adjusted to an appropriate placement size by the push-pull auxiliary pad structure relative to the main pad body. This allows for adjustment of the placement size to fit the pediatric patient's corresponding upper limb. The forearm of the pediatric patient's corresponding upper limb is then placed on the main pad body, with the palm of the pediatric patient's corresponding upper limb located on the auxiliary pad structure. The main fixation structure and auxiliary fixation structure then securely fix the forearm and palm of the pediatric patient's corresponding upper limb to the main pad body and auxiliary pad structure, respectively. This achieves the limitation of the pediatric patient's limb movement position, safely limiting wrist flexion and preventing accidental dislodgement of the radial artery cannula due to wrist flexion, thus effectively improving the safety of use. Therefore, this invention has the advantages of being able to adjust its size to fit different pediatric patients, safely limiting their wrist flexion, and preventing accidental dislodgement of the radial artery cannula. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the pediatric radial artery cannulation fixation and protection device described in this utility model;

[0020] Figure 2 This is a bottom view of the pediatric radial artery cannulation fixation and protection device described in this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Main pad body; 2. Auxiliary pad structure; 21. Slide groove; 22. Auxiliary pad body; 23. Baffle; 24. Bolt; 3. Main fixing structure; 31. Adhesive strip; 32. Slide rail; 33. Main limiting component; 100. Slider; 200. Adhesive tape; 300. Screw; 400. Spacer strip; 4. Auxiliary fixing structure; 41. Mounting port; 42. Limiting port; 43. Auxiliary fixing tape; 44. Velcro rough surface; 45. Velcro hook surface; 5. Pressure relief pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 2 As shown, a pediatric radial artery cannulation fixation and protection device includes a main pad 1 for positioning and placing the upper limb of a pediatric patient; at both ends of the main pad 1, there is an auxiliary pad structure 2 that can move relative to the main pad 1 to adjust the placement size and adapt to pediatric patients with different arm lengths for positioning and placing their corresponding forearm and palm; and a main fixation structure 3 and an auxiliary fixation structure 4 are respectively provided on the main pad 1 and the auxiliary pad structure 2 for limiting the position and movement of the placed limb. During use, after radial artery cannulation in pediatric patients, the auxiliary pad structure 2 is adjusted relative to the main pad body 1 to achieve the appropriate placement size based on the forearm length requirement of the pediatric patient's corresponding upper limb. This allows for adjustment to fit the pediatric patient's upper limb. The forearm of the pediatric patient's corresponding upper limb is then placed on the main pad body 1. At this time, the palm of the pediatric patient's corresponding upper limb is located on the auxiliary pad structure 2. The main fixation structure 3 and the auxiliary fixation structure 4 then securely fix the forearm and palm of the pediatric patient's corresponding upper limb to the main pad body 1 and the auxiliary pad structure 2, respectively. This effectively limits the movement position of the pediatric patient's corresponding limb, safely restricting wrist flexion and preventing accidental dislodgement of the radial artery cannula due to wrist flexion, thus significantly improving the safety of use.

[0024] In this embodiment, the auxiliary pad structure 2 includes a groove 21 formed at the bottom of a corresponding end of the main pad body 1, with one end of the groove 21 passing through the outer end of the main pad body 1 and communicating with the outside. An auxiliary pad body 22 is movably mounted on the groove 21, which can be adjusted relative to the main pad body 1 to increase the placement size. A baffle 23 is also provided on the bottom of a corresponding end of the main pad body 1, located on the opening side of the corresponding groove 21, for limiting one end of the auxiliary pad body 22 within the groove 21. A bolt 24 is provided on the top of the side of the main pad body 1 near the corresponding baffle 23 for securely fixing the auxiliary pad body 22 to the main pad body 1. The auxiliary fixing structure 4 is provided on the auxiliary pad body 22. During use, after radial artery cannulation is performed on pediatric patients in clinical practice, the auxiliary pad 22 is pushed and pulled along the slide groove 21 relative to the main pad 1 to adjust to a suitable position based on the forearm length requirement of the corresponding upper limb of the pediatric patient, under the position limitation of the baffle 23 of the auxiliary pad structure 2. Then, the auxiliary pad 22 is fixedly fixed to the main pad 1 by bolts 24. This realizes the autonomous adjustment of the placement size to suit the pediatric patient for placing the corresponding upper limb. Then, the forearm of the corresponding upper limb of the pediatric patient is placed on the main pad 1. At this time, the palm of the corresponding upper limb of the pediatric patient is located on the auxiliary pad 22, which can effectively meet the support and placement of the corresponding upper limb of the pediatric patient, effectively improving the applicability and convenience of use.

[0025] In this embodiment, the auxiliary fixing structure 4 includes an installation opening 41 on the top of one side of the auxiliary pad 22, and a limiting opening 42 on the top of the other side of the auxiliary pad 22 away from the installation opening 41. An auxiliary fixing strap 43 is provided on the installation opening 41 for overlapping and cooperating with the limiting opening 42 to position the limb located on the auxiliary pad 22. A hook and loop fastener 44 is provided at one end of the auxiliary fixing strap 43 near the installation opening 41, and a hook and loop fastener hook 45 is provided at one end of the auxiliary fixing strap 43 away from the installation opening 41 to adhere and cooperate with the hook and loop fastener 44 to securely fix the limb placed on the auxiliary pad 22 on the auxiliary pad 22. During use, when the child patient's palm is positioned above the auxiliary pad 22, under the constraint of the mounting port 41 of the auxiliary fixation structure 4, the movable end of the auxiliary fixation strap 43 is pulled around the top of the child patient's palm towards the limiting port 42 until the movable end of the auxiliary fixation strap 43 passes through the limiting port 42 and overlaps with it. Then, the movable end of the auxiliary fixation strap 43 is pulled in the opposite direction towards its fixed end until the auxiliary fixation strap 43 fixes the child patient's palm on the auxiliary pad 22 with appropriate fixing force. Then, the hook and loop fasteners 44 and 45 are glued together to secure the child patient's palm on the auxiliary pad 22, thereby preventing the radial artery catheter from accidentally dislodging during wrist flexion and effectively improving the safety of use.

[0026] In this embodiment, the main fixing structure 3 includes an adhesive strip 31 disposed on one side wall of the main pad 1, and a slide rail 32 disposed on the top of the other side of the main pad 1 away from the adhesive strip 31. The slide rail 32 has a plurality of main limiting components 33 that are movable relative to the slide rail 32 and are used to adhere to and cooperate with the adhesive strip 31 to limit the position and movement of a limb placed on the main pad 1. The main limiting components 33 include a slider 100 movably disposed on the slide rail 32, an adhesive tape 200 for adhering to and cooperating with the adhesive strip 31 on the inner top of the slider 100, and a screw 300 threadedly connected to the top of the slider 100 to securely limit the slider 100 to the slide rail 32. The main limiting components also include a separating strip 400 disposed on the inner top of the slider 100 to isolate the adhesive tape 200 from the limb skin when the limb is limited by the adhesive tape 200 to avoid friction damage. During use, after placing the forearm of the corresponding upper limb of the pediatric patient above the main pad 1, the slider 100 of the corresponding main limiting component 33, together with the adhesive tape 200 and the spacer strip 400, is pushed to slide along the slide rail 32 of the main fixing structure 3 relative to the main pad 1 to an appropriate position as needed. Then, the slider 100, together with the adhesive tape 200 and the spacer strip 400, is fixedly fixed at the designated position on the slide rail 32 by the screw 300. Next, the spacer strip 400 is pulled and laid on the top of the corresponding upper limb forearm of the pediatric patient. Then, the adhesive tape 200 is pulled around the spacer strip 400 and moved towards the adhesive strip 31. The adhesive tape 200 is then applied at an appropriate angle. After the fixing force restricts the forearm of the corresponding upper limb of the pediatric patient to the main pad 1, the adhesive tape 200 and the adhesive strip 31 are then glued together to achieve stable restriction of the forearm of the corresponding upper limb of the pediatric patient. This restricts the movement position of the corresponding limb of the pediatric patient. The cooperation between the adhesive tape 200 and the adhesive strip 31 can safely restrict the wrist flexion movement of the limb to prevent the radial artery catheter from accidentally dislodging due to the pediatric patient's wrist flexion movement. At the same time, the diaphragm strip 400 can also isolate the adhesive tape 200 from the skin of the corresponding upper limb of the pediatric patient to prevent friction injury, effectively improving the safety of use.

[0027] In this embodiment, a pressure-reducing pad 5 is embedded in the top of both the main pad 1 and the auxiliary pad 22 to improve comfort through skin contact with the limbs during operation.

[0028] In this embodiment, the pressure-reducing pad 5 is a pressure-reducing pad structure made of a sponge wrapped in a cotton sleeve. The pressure-reducing pad 5 is embedded on the top of the main pad 1 or the auxiliary pad 22 by the cotton sleeve.

[0029] In specific use of this embodiment, firstly, after radial artery cannulation is performed on a pediatric patient clinically, based on the forearm length requirement of the corresponding upper limb of the pediatric patient, the auxiliary pad 22 is pushed and pulled along the slide groove 21 relative to the main pad 1 to adjust to an appropriate position, under the position limitation of the baffle 23 of the auxiliary pad structure 2. Then, the auxiliary pad 22 is firmly fixed to the main pad 1 by bolts 24, thereby realizing the autonomous adjustment of the placement size to suit the pediatric patient for placing the corresponding upper limb. Secondly, the forearm of the corresponding upper limb of the pediatric patient is placed on top of the main pad 1, and the palm of the corresponding upper limb of the pediatric patient is located on top of the auxiliary pad 22. At this time, the skin of the pediatric patient's limb is directly... When in contact with the pressure-reducing pad 5, it effectively improves the comfort of use and also supports the corresponding upper limb of the pediatric patient, effectively improving the applicability and convenience of use. Then, under the limitation of the mounting port 41 of the auxiliary fixation structure 4, the movable end of the auxiliary fixation strap 43 is pulled around the top of the pediatric patient's palm towards the limiting port 42 until the movable end of the auxiliary fixation strap 43 passes through the limiting port 42 and overlaps with the limiting port 42. Then, the movable end of the auxiliary fixation strap 43 is pulled in the opposite direction towards its fixed end until the auxiliary fixation strap 43 fixes the pediatric patient's palm on the auxiliary pad body 22 with appropriate fixing force. Then, the Velcro surface 44 and the Velcro are attached. The hooks 45 are glued together to securely restrain the child patient's hand on the pad 22, preventing wrist flexion. Finally, as needed, the slider 100 of the corresponding main restraint component 33, along with the adhesive tape 200 and the spacer strip 400, slides relative to the main pad 1 along the slide rail 32 of the main fixing structure 3 to the appropriate position. The slider 100, adhesive tape 200, and spacer strip 400 are then securely restrained at the designated position on the slide rail 32 by the screw 300. The spacer strip 400 is then pulled and placed on the top of the child patient's corresponding upper limb forearm. Next, the adhesive tape 200 is pulled around the spacer strip 400 towards the adhesive strip 31 for direct adhesion. After the adhesive tape 200 secures the forearm of the corresponding upper limb of the child patient to the main pad 1 with appropriate fixing force, the adhesive tape 200 and the adhesive strip 31 are then glued together to achieve stable restriction of the forearm of the corresponding upper limb of the child patient. This restricts the movement position of the corresponding limb of the child patient. The cooperation between the adhesive tape 200 and the adhesive strip 31 can safely restrict the wrist flexion movement of the limb to prevent the radial artery catheter from accidentally dislodging due to the child patient's wrist flexion movement. At the same time, the diaphragm strip 400 can also isolate the adhesive tape 200 from the skin of the corresponding upper limb of the child patient to prevent friction injury, effectively improving the safety of use.

[0030] In summary, the present invention, with the above-described structure, has the advantages of being able to adjust its size to suit different pediatric patients for safely limiting their limb flexion and wrist movements, and is less likely to cause accidental dislodgement of the radial artery cannula.

[0031] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A pediatric radial artery cannulation fixation and protection device, comprising a main pad (1) for positioning and placing the upper limb of a pediatric patient; characterized in that: At both ends of the main pad (1), there is an auxiliary pad structure (2) that can move relative to the main pad (1) to adjust the placement size so as to fit pediatric patients with different arm lengths for positioning the forearm and palm of their corresponding upper limbs; and a main fixation structure (3) and an auxiliary fixation structure (4) for limiting the position and movement of the placed limb are respectively provided on the main pad (1) and the auxiliary pad structure (2).

2. The pediatric radial artery cannulation fixation and protection device according to claim 1, characterized in that: The auxiliary pad structure (2) includes a groove (21) formed at the bottom of one end of the main pad body (1), and one end of the groove (21) passes through the outer end of the main pad body (1) and communicates with the outside. An auxiliary pad body (22) is movably provided on the groove (21) and can be adjusted relative to the main pad body (1) to increase the placement size. A baffle (23) is provided on the bottom of one end of the main pad body (1) at the opening side of the corresponding groove (21) to limit one end of the auxiliary pad body (22) in the groove (21). A bolt (24) is provided on the top of the side of the main pad body (1) near the corresponding baffle (23) to securely limit the auxiliary pad body (22) on the main pad body (1). The auxiliary fixing structure (4) is provided on the auxiliary pad body (22).

3. The pediatric radial artery cannulation fixation and protection device according to claim 2, characterized in that: The auxiliary fixing structure (4) includes an installation port (41) on the top of one side of the auxiliary pad (22) and a limiting port (42) on the top of the other side of the auxiliary pad (22) away from the installation port (41). An auxiliary fixing strap (43) is provided on the installation port (41) for overlapping and cooperating with the limiting port (42) to position the limb located on the auxiliary pad (22). A hook and loop fastener (44) is provided at one end of the auxiliary fixing strap (43) near the installation port (41), and a hook and loop fastener (45) is provided at one end of the auxiliary fixing strap (43) away from the installation port (41) to stick and cooperate with the hook and loop fastener (44) to securely fix the limb placed on the auxiliary pad (22) on the auxiliary pad (22).

4. The pediatric radial artery cannulation fixation and protection device according to claim 2, characterized in that: The main fixing structure (3) includes an adhesive strip (31) on one side wall of the main pad (1) and a slide rail (32) on the top of the other side of the main pad (1) away from the adhesive strip (31). The slide rail (32) is provided with a plurality of main limiting components (33) that can move relative to the slide rail (32) and are used to stick and cooperate with the adhesive strip (31) to limit the position and movement of the limb placed on the main pad (1).

5. The pediatric radial artery cannulation fixation and protection device according to claim 4, characterized in that: The main limiting component (33) includes a slider (100) movably mounted on the slide rail (32), an adhesive tape (200) for adhering to and cooperating with the adhesive strip (31) on the inner top of the slider (100), a screw (300) for securely limiting the slider (100) on the slide rail (32) is also threadedly connected to the top of the slider (100), and a partition strip (400) provided on the inner top of the slider (100) for isolating the adhesive tape (200) from the skin of the limb to avoid friction damage when the limb is placed on the main pad (1) by the adhesive tape (200).

6. The pediatric radial artery cannulation fixation and protection device according to claim 4, characterized in that: A pressure-reducing pad (5) is embedded in the top of both the main pad (1) and the auxiliary pad (22) to improve comfort by contacting the skin of the limbs during operation.

7. The pediatric radial artery cannulation fixation and protection device according to claim 6, characterized in that: The pressure-reducing pad (5) is a pressure-reducing pad structure made of a sponge wrapped in a cotton sleeve. The pressure-reducing pad (5) is embedded in the top of the main pad (1) or the auxiliary pad (22) by the cotton sleeve.

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