Catheter fixing device for invasive treatment

Abstract

The catheter fixing device comprises a base and a cover plate arranged on the top face of the base, a U-shaped open groove used for containing a catheter is formed in the top face of the base, and the two ends of the U-shaped open groove extend to one side of the base to form an opening. A limiting block capable of moving and being fixed in the width direction of the U-shaped open groove is arranged on the outer side of the U-shaped open groove, a first limiting notch capable of being matched with the inner side of the U-shaped open groove to fix the catheter is formed in the bottom of the limiting block, and a second limiting notch capable of being matched with the inner side of the U-shaped open groove to fix the catheter is formed in the position, corresponding to the bottom of the first limiting notch, of the bottom of the limiting block. The catheter fixing device has the advantages of limiting catheters of different sizes, keeping the catheters fixed so as to increase applicability, being capable of rapidly adjusting the limiting modes of the catheters of different sizes at any time, being easy and convenient to operate and the like.

Description

Technical Field

[0001] The utility model relates to a catheter fixing device for invasive treatment, belonging to the technical field of medical equipment. Background Art

[0002] At present, invasive treatment methods are relatively common in the medical field. Invasive treatment is to inject drugs directly into the affected area through advanced instruments and advanced technologies. During the invasive treatment process, some existing catheters used for invasive treatment usually have a long section of catheter outside the body. The catheter is fixed to the human skin by bending with adhesive tape. If the catheter is not fixed well or is pulled, it is easy to increase the pain of the patient during the treatment process.

[0003] A Chinese patent application with publication number CN112546399A discloses a structure of a catheter fixing frame for minimally invasive interventional treatment care, which includes a soft cushion; a fixing structure, a tube collecting structure, a connecting block, a fixing cover structure, and a fixing belt, wherein the fixing structure is fixed to the top surface of the soft cushion; the tube collecting structure is installed inside the fixing plate; the connecting block is fixed to the edge of the fixing plate; the fixing cover structure is fixed to one end of the connecting block; and the fixing belt is fixed to both ends of the fixing plate.

[0004] Existing catheters have different diameters. During actual fixation, catheters of different sizes will cause the device to be unable to completely restrict the position of the catheter, and the catheter is prone to radial loosening, resulting in a poor fixation effect. Utility Model Content

[0005] The utility model aims to provide a catheter fixing device for invasive treatment, which solves the problems existing in the prior art that applicable catheter sizes are limited and catheters of different sizes are prone to loosening and deviation.

[0006] The above technical objectives of the utility model are mainly solved by the following technical solutions: a catheter fixing device for invasive treatment, comprising a base and a cover plate arranged on the top surface of the base, wherein the top surface of the base is provided with a U-shaped slot for placing the catheter, the two ends of the U-shaped slot extend to one side of the base to form an opening, the outer side of the U-shaped slot is provided with a limit block that can be moved and fixed along the width direction of the U-shaped slot, the bottom of the limit block is provided with a first limit notch that can cooperate with the inner side of the U-shaped slot to fix the catheter, and the bottom of the limit block is provided with a limit notch that can cooperate with the U-shaped slot corresponding to the bottom of the first limit notch The inner side cooperates with the second limiting notch for fixing the catheter; the above-mentioned U-shaped groove can limit and fix the catheter, and prevent the catheter from falling out through the cover plate, so that the catheter can remain in a bent state during invasive treatment to prevent the catheter from being pulled or falling out, and the setting of the limiting block can longitudinally limit the catheter inserted into the U-shaped groove to prevent the catheter from falling out from above the U-shaped groove, and the setting of the first limiting notch and the second limiting notch can cooperate with the inner wall of the U-shaped groove to limit catheters of different sizes and keep the catheter fixed to increase applicability, and the limiting width can be quickly adjusted at any time, and the operation is simple and convenient.

[0007] Preferably, a positioning groove for accommodating a limit block and connected to the U-shaped groove is provided on the outer side of the U-shaped groove, and the limit block does not protrude from the U-shaped groove when it is located in the U-shaped groove; the above-mentioned positioning groove can accommodate and limit the limit block, and the limit block does not protrude from the U-shaped groove when it is located in the U-shaped groove, so that when a larger-sized catheter is limited by both sides of the U-shaped groove, the limit block located in the positioning groove can avoid the catheter.

[0008] Preferably, a fixing groove cooperating with the top of the first limiting notch is provided on the inner side of the U-shaped groove, and guide grooves are provided on both sides of the positioning groove and the fixing groove, which are arranged along the moving direction of the limiting block and extend from the side wall of the positioning groove to the side wall of the fixing groove, and guide strips cooperating with the guide grooves are provided on both sides of the limiting block; the above-mentioned fixing groove can cooperate with the top of the first limiting notch to accommodate the first limiting notch, so that the second limiting notch can cooperate with the U-shaped groove to limit the catheter, and the guiding groove and the guiding strip are arranged in cooperation to facilitate the guiding limit of the movement of the limiting block, maintain the stability of the movement of the limiting block, and can position the limiting block to prevent the limiting block from falling out.

[0009] Preferably, a frustum-shaped protrusion is provided on the top surface of the limit block, and a plurality of grooves cooperating with the protrusion and corresponding to the position of the limit block are provided on the bottom surface of the cover plate; the arrangement of the above-mentioned protrusions and grooves enables the limit block to be fixed by the cooperation of the protrusions and the grooves after the limit block is moved to the specified position, so that the limit block is kept in a fixed position, and the limit blocks at different positions can be fixed to avoid displacement of the limit block.

[0010] Preferably, an arcuate groove is provided on the inner side of the U-shaped groove, and the arcuate groove is connected to one end of the U-shaped groove and forms a notch; the arrangement of the arcuate groove is to facilitate the limitation of the branch tube on the side of the catheter and increase the positioning effect of the branch tube, while the arrangement of the notch can avoid the compression of the connection between the branch tube and the catheter, resulting in deformation and affecting normal infusion.

[0011] Preferably, a top block is provided on the inner side of the arc-shaped groove, and an end of the top block facing the inner wall of the arc-shaped groove is provided with an arc surface that cooperates with the inner wall of the arc-shaped groove, and a push rod extending toward the outside of the base is provided at the bottom of the top block, and a strip groove that cooperates with the push rod is provided on the bottom surface of the arc-shaped groove; the setting of the above-mentioned top block can position and fix the branch pipe in the arc-shaped groove to prevent the branch pipe from shaking or loosening and causing additional pain to the patient, and the setting of the above-mentioned arc surface can increase the limiting and maintaining of the bending state of the branch pipe to prevent the branch pipe from falling out or loosening, and the above-mentioned strip groove cooperates with the push rod to limit the movement of the top block, maintain the stability of the movement of the top block, and pull the top block through the push rod to facilitate the operator to pull and move the top block.

[0012] Preferably, an adhesive layer is provided on the bottom surface of the base, a plurality of buckles are provided on the top surface of the base near the corners, and a card slot cooperating with the buckle is provided on the bottom surface of the cover plate; the setting of the above-mentioned adhesive layer can assist the base in being bonded to the human skin for fixation, and the setting of the buckle and the card slot can facilitate the fixation of the cover plate, fix the cover plate to the base, and close the U-shaped groove and the arc groove through the cover plate to prevent the catheter and the branch pipe from falling out longitudinally.

[0013] Therefore, the utility model has the characteristics of limiting the position of catheters of different sizes and keeping the catheters fixed to increase applicability, and the limiting mode of catheters of different sizes can be quickly adjusted at any time, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 yes Figure 1 Schematic diagram of the structure of the base.

[0016] Figure 3 yes Figure 2 Structural cross-section view.

[0017] Figure 4 yes Figure 1 Schematic diagram of the structure of the cover plate. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] like Figure 1-3As shown, a catheter fixing device for invasive treatment includes a base 1 and a cover plate 2 arranged on the top surface of the base 1, the top surface of the base 1 is provided with a U-shaped groove 11 for placing the catheter, the two ends of the U-shaped groove 11 extend to one side of the base 1 to form an opening, the outer side of the U-shaped groove 11 is provided with a limit block 3 that can be moved and fixed along the width direction of the U-shaped groove 11, the bottom of the limit block 3 is provided with a first limit notch 31 that can cooperate with the inner side of the U-shaped groove 11 to fix the catheter, the bottom of the limit block 3 is provided with a second limit notch 32 that can cooperate with the inner side of the U-shaped groove 11 to fix the catheter, the bottom surface of the base 1 is provided with an adhesive layer 16, the top surface of the base 1 is provided with a plurality of buckles 17 near the edges and corners, and the bottom surface of the cover plate 2 is provided with a buckle groove 22 that cooperates with the buckle 17.

[0020] The above-mentioned device is used to fix the catheter in invasive treatment. The catheter is bent and placed in the U-shaped groove, and then the limit block is moved so that the limit block can compress and limit catheters of different sizes through the first limit notch and the second limit notch. The first limit notch and the second limit notch both cooperate with the inner side of the U-shaped groove to compress the catheter. When the diameter of the catheter is consistent with the width of the U-shaped groove, there is no need to move the limit block, and the catheter can be laterally limited only by the width of the U-shaped groove. Then, the cover plate is covered, and the buckle on the top surface of the base is inserted into the groove at the bottom of the cover plate to connect and fix the cover plate and the base. The base is bonded to the human skin and fixed by the adhesive layer arranged at the bottom, so that the bent catheter can be compressed and positioned. The above-mentioned first limit notch and the second limit notch correspond to catheters of different sizes respectively. In fact, limit notches of different sizes can be set as needed to cope with catheters of different sizes.

[0021] like Figure 2-4 As shown, a positioning groove 12 for accommodating the limit block 3 and connected to the U-shaped groove 11 is provided on the outer side of the U-shaped groove 11. When the limit block 3 is located in the U-shaped groove 11, it does not protrude from the U-shaped groove 11. A fixing groove 13 is provided on the inner side of the U-shaped groove 11 to cooperate with the top of the first limit notch 31. Guide grooves 121 are provided along the moving direction of the limit block 3 and extend from the side wall of the positioning groove 12 to the side wall of the fixing groove 13 on both sides of the positioning groove 12 and the fixing groove 13. Guide strips 33 respectively cooperate with the guide grooves 121 are provided on both sides of the limit block 3. A frustum-shaped convex portion 34 is provided on the top surface of the limit block 3, and a plurality of grooves 21 cooperating with the convex portion 34 and corresponding to the position of the limit block 3 are provided on the bottom surface of the cover plate 2.

[0022] When the catheter is bent and placed into the U-shaped groove, the limit block is located in the positioning groove, and the end of the limit block does not protrude into the U-shaped groove. After the catheter is placed in the U-shaped groove, the limit block is moved, and the limit block moves along the guide groove toward the width direction of the U-shaped groove through the guide bar. According to the size of the catheter, the first limit notch or the second limit notch is made to contact the side wall of the catheter, and then the cover plate is covered on the base. When the limit block is in different positions, the convex part on the top of the limit block can always be stuck in the groove at the corresponding position, and the position of the limit block is locked by the grooves on the cover plate and the bottom surface of the cover plate.

[0023] When the side wall of the catheter is completely in contact with the U-shaped groove, the limit block does not move and remains in the positioning groove, and the convex part on the top of the limit block is inserted into a groove at the bottom of the cover plate, and the bottom surface of the cover plate is closed to the top of the U-shaped groove and presses the upper side of the catheter; when the first limit notch contacts the catheter and cooperates with the inner wall of the U-shaped groove to press the catheter, the limit block partially moves into the U-shaped groove, and the convex part on the top of the limit block is inserted into the groove at another position; when the second limit notch contacts the catheter and cooperates with the inner wall of the U-shaped groove to press the catheter, the limit block partially moves into the U-shaped groove, and the top of the first limit notch at the end of the limit block moves into the fixed groove and cooperates with the fixed groove, and the convex part on the top of the limit block is inserted into the groove at another position.

[0024] like Figure 2-3 As shown, an arc-shaped groove 14 is provided on the inner side of the U-shaped groove 11, and the arc-shaped groove 14 is connected to one end of the U-shaped groove 11 and forms a notch 141. A top block 15 is provided on the inner side of the arc-shaped groove 14, and an end of the top block 15 facing the inner wall of the arc-shaped groove 14 is provided with an arc surface 152 that cooperates with the inner wall of the arc-shaped groove 14. A push rod 151 extending toward the outside of the base 1 is provided at the bottom of the top block 15, and a strip groove 142 that cooperates with the push rod 151 is provided on the bottom surface of the arc-shaped groove 14; the above-mentioned arc-shaped groove is located on the inner side of the U-shaped groove, which can position and fix the branch pipe of the side wall of the catheter. Some catheters have branch pipes, and the branch pipe needs to be placed in the arc-shaped groove, and the top block is pushed by the push rod to move along the strip groove toward the inner side of the branch pipe until the arc surface of the top block contacts the branch pipe, and the connection between the branch pipe and the catheter passes through the notch to avoid problems such as folding or deformation of the branch pipe or the catheter.

Claims

1. A catheter fixing device for invasive treatment, characterized in that: The invention comprises a base (1) and a cover plate (2) arranged on the top surface of the base (1); the top surface of the base (1) is provided with a U-shaped slot (11) for placing a catheter; both ends of the U-shaped slot (11) extend to one side of the base (1) to form an opening; a limit block (3) is provided on the outside of the U-shaped slot (11) and can be moved and fixed along the width direction of the U-shaped slot (11); a first limit notch (31) is provided at the bottom of the limit block (3) and can cooperate with the inner side of the U-shaped slot (11) to fix the catheter; and a second limit notch (32) is provided at the bottom of the limit block (3) corresponding to the first limit notch (31) and can cooperate with the inner side of the U-shaped slot (11) to fix the catheter.

2. The catheter fixing device for invasive treatment according to claim 1, characterized in that: A positioning groove (12) for accommodating the limiting block (3) and communicating with the U-shaped groove (11) is provided on the outside of the U-shaped groove (11); when the limiting block (3) is located in the U-shaped groove (11), it does not protrude from the U-shaped groove (11).

3. The catheter fixing device for invasive treatment according to claim 2, characterized in that: A fixing groove (13) cooperating with the top of the first limiting notch (31) is provided on the inner side of the U-shaped slot (11); guide grooves (121) arranged along the moving direction of the limiting block (3) and extending from the side wall of the positioning groove (12) to the side wall of the fixing groove (13) are provided on both sides of the positioning slot (12); and guide strips (33) cooperating with the guide grooves (121) are provided on both sides of the limiting block (3).

4. The catheter fixing device for invasive treatment according to claim 1, characterized in that: A frustum-shaped protrusion (34) is provided on the top surface of the limit block (3), and a plurality of grooves (21) cooperating with the protrusion (34) and corresponding to the position of the limit block (3) are provided on the bottom surface of the cover plate (2).

5. The catheter fixing device for invasive treatment according to claim 1, characterized in that: An arc-shaped groove (14) is provided inside the U-shaped groove (11), and the arc-shaped groove (14) is connected to one end of the U-shaped groove (11) to form a notch (141).

6. The catheter fixing device for invasive treatment according to claim 5, characterized in that: A top block (15) is provided inside the arc-shaped slot (14); an end of the top block (15) facing the inner wall of the arc-shaped slot (14) is provided with an arc surface (152) that matches the inner wall of the arc-shaped slot (14); a push rod (151) extending toward the outside of the base (1) is provided at the bottom of the top block (15); and a strip groove (142) that matches the push rod (151) is provided on the bottom surface of the arc-shaped slot (14).

7. The catheter fixing device for invasive treatment according to claim 1, characterized in that: An adhesive layer (16) is provided on the bottom surface of the base (1), a plurality of buckles (17) are provided on the top surface of the base (1) near the corners, and a clamping groove (22) cooperating with the buckles (17) is provided on the bottom surface of the cover plate (2).

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