Central venous catheter fixing clamp

Abstract

The utility model discloses a central venous catheter fixing clamp, and particularly relates to the technical field of medical instruments, the central venous catheter fixing clamp comprises a connecting assembly and a catheter fixing assembly, the catheter fixing assembly is detachably connected to the connecting assembly, the catheter fixing assembly comprises a supporting plate, a catheter fixing block and a catheter guide block, the guide pipe fixing block and the guide pipe guide block are fixed on the supporting plate in a line mode, a limiting groove is formed in the guide pipe fixing block, a through opening is formed in one position of the limiting groove, and a blocking structure capable of moving up and down is arranged at the position of the through opening. When the catheter fixing device is used, the bandage is wound on the arm of a patient and locked through the buckle shaped like the Chinese character'ri ', then the supporting plate is fixed to the bandage, the catheter is limited through the catheter fixing assembly, and the outer wall of the catheter is pressed through the abutting piece, so that the catheter can be effectively fixed and limited, fixing is convenient, adhesive tape is not needed for adhesion and fixing, and the catheter fixing device is simple in structure and convenient to use. Pull pain caused by tearing off the adhesive tape is avoided, and meanwhile secondary injury to a puncture point of a patient is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a central venous catheter fixing clamp. Background Art

[0002] A central venous catheter is a type of intravascular catheter that is placed in a large vein. It can be used to measure central venous pressure, perform large-scale and rapid intravenous infusions, and other operations. When a central venous catheter is inserted into the human body, the catheter needs to be fixed to maintain its stability.

[0003] At present, when a central venous catheter is inserted into a human body and fixed, a fixing tape is usually used to press the catheter and adhere it to the patient's skin. Although this can ensure the stability of the catheter fixation, when the tape is torn off, the skin is pulled and it is easy to cause skin pain. In addition, the tape is adhered to the catheter. If too much force is used when tearing off the tape, the catheter will be pulled outward, which may easily cause secondary damage to the patient's puncture site. Utility Model Content

[0004] The utility model aims to provide a central venous catheter fixing clamp to solve the above-mentioned technical deficiencies.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a central venous catheter fixing clamp, comprising a connecting assembly and a catheter fixing assembly, wherein the connecting assembly is used to be tied to the patient's arm, and the catheter fixing assembly is detachably connected to the connecting assembly;

[0006] The catheter fixing assembly includes a support plate, a catheter fixing block and a catheter guide block, the catheter fixing block and the catheter guide block are fixed on the support plate in a line, the catheter fixing block is provided with a limiting groove, a through opening is provided at one place of the limiting groove, a blocking structure that can be moved up and down is provided at the through opening, the catheter guide block is provided with a guide groove with an open upper end, and the catheter guide block is provided with a pressing piece for pressing the catheter.

[0007] Preferably, the connecting assembly includes a strap and a Japanese-shaped buckle, the Japanese-shaped buckle is installed at one end of the strap, and a disinfection pad layer is provided on the inner side of the strap.

[0008] Preferably, a mother Velcro is fixed to the outer side of the strap, and both ends of the support plate are connected to child Velcro.

[0009] Preferably, the blocking structure comprises:

[0010] A groove, the groove is formed on the outer wall of the catheter fixing block, and the groove is located above the through opening;

[0011] A movable vertical rod, the movable vertical rod passes through the bottom of the groove and extends into the through opening, and a pull plate is installed on the top of the movable vertical rod;

[0012] A spring is connected between the bottom of the groove and the pull plate, and the spring is sleeved outside the movable vertical rod.

[0013] Preferably, the pressing member comprises:

[0014] A connecting rod, the connecting rod being rotatably connected to one end of the upper end surface of the catheter guide block;

[0015] A connecting plate, the connecting plate being fixed to the top end of the connecting rod;

[0016] A threaded rod, the threaded rod being screwed through the connecting plate;

[0017] A pressing bar is rotatably mounted on the bottom end of the threaded rod.

[0018] Preferably, a movable column is connected to the bottom end of the connecting rod, and a movable groove is formed at one end of the upper end surface of the catheter guide block.

[0019] Preferably, the movable column includes an upper straight rod portion and a lower straight rod portion, the diameter of the lower straight rod portion is larger than the diameter of the upper straight rod portion, and the movable groove includes an upper circular groove cooperating with the upper straight rod portion and a lower circular groove cooperating with the lower straight rod portion.

[0020] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0021] When the utility model is used, the bandage is wound around the patient's arm and locked with a Japanese buckle, and then the support plate is fixed to the bandage by bonding the sub-velcro and the main Velcro, and then the catheter can be restricted by the catheter fixing component, and finally the outer wall of the catheter can be pressed by the pressing piece, so that the catheter can be effectively fixed and restricted, and the fixing is convenient and the separation from the catheter is convenient, and there is no need to use adhesive tape to fix it, which avoids the disadvantage of pulling pain caused by tearing off the adhesive tape, and at the same time avoids secondary injury to the patient's puncture point;

[0022] When passing the catheter through the limiting groove, the pull plate can be pulled up first to move the movable vertical rod up so that the catheter enters the limiting groove from the opening. Then the pull plate is released, and the spring returns to its original state to drive the movable vertical rod down to block the opening. The operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a structural schematic diagram of the catheter fixing assembly of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the connection assembly of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the catheter fixing block and the blocking structure of the utility model;

[0027] Figure 4 It is a cross-sectional view of the catheter guide block of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the movable column of the utility model.

[0029] Description of reference numerals:

[0030] 1. Support plate; 2. Catheter fixing block; 3. Sub-Velcro; 4. Catheter guide block; 5. Guide groove; 6. Connecting rod; 7. Connecting plate; 8. Threaded rod; 9. Pressure strip; 10. Movable vertical rod; 11. Binding strap; 12. Mother Velcro; 13. Japanese buckle; 14. Disinfection pad; 15. Limiting groove; 16. Through hole; 17. Groove; 18. Pull plate; 19. Spring; 20. Movable column; 21. Movable groove. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The utility model provides Figure 1-Figure 2 A central venous catheter fixing clamp shown in the figure specifically includes a connecting component and a catheter fixing component, the connecting component is used to be tied to the patient's arm, the catheter fixing component is detachably connected to the connecting component, and the detachably connected catheter fixing component facilitates its disassembly and assembly with the connecting component, wherein the catheter fixing component includes a support plate 1, a catheter fixing block 2 and a catheter guide block 4, the support plate 1 is preferably made of rubber and can be appropriately deformed, the catheter fixing block 2 and the catheter guide block 4 are fixed on the support plate 1 in a line, a limiting groove 15 is provided on the catheter fixing block 2, a through hole 16 is provided at one place of the limiting groove 15, the through hole 16 is used for the central catheter to enter the limiting groove 15, and a blocking structure that can be moved up and down is provided at the through hole 16. After the central catheter enters the limiting groove 15, the blocking structure is used to block the through hole 16, so as to avoid the patient dragging and causing the catheter to move out, a guide groove 5 with an open upper end is provided on the catheter guide block 4, and a pressing piece for pressing the catheter is provided on the catheter guide block 4, and the pressing piece is used to press the catheter to increase resistance to reduce the occurrence of catheter movement.

[0033] Among them, it is preferred that two catheter guide blocks 4 are provided, which are located on both sides of the catheter fixing block 2. One or two pressure pieces can be provided. When there is one pressure piece, it is only necessary to ensure that one of the catheter guide blocks 4 is provided with a pressure piece; when there are one or two pressure pieces, at this time, one pressure piece is provided for each of the two catheter guide blocks 4.

[0034] In a specific embodiment of the present invention, refer to Figure 2 As shown, the connection assembly includes a strap 11 and a Japanese-shaped buckle 13 . The Japanese-shaped buckle 13 is installed at one end of the strap 11 , and a disinfection pad layer 14 is provided on the inner side of the strap 11 .

[0035] Furthermore, a mother Velcro 12 is fixed to the outside of the binding strap 11 , and child Velcro 3 is connected to both ends of the support plate 1 , and the child Velcro 3 and the mother Velcro 12 cooperate with each other.

[0036] In a specific embodiment of the present invention, refer to Figure 3 As shown, the blocking structure includes:

[0037] A groove 17, which is formed on the outer wall of the catheter fixing block 2 and is located above the through opening 16;

[0038] A movable vertical rod 10, which passes through the bottom of the groove 17 and extends into the through opening 16, and a pull plate 18 is installed on the top of the movable vertical rod 10;

[0039] The spring 19 is connected between the bottom of the groove 17 and the pull plate 18 , and the spring 19 is sleeved on the outside of the movable vertical rod 10 .

[0040] Through the above technical solution:

[0041] When fixing the central catheter, the medical staff can first wrap the strap 11 around the patient's arm where the central catheter is inserted, and then lock it with the Japanese buckle 13, and then use the adhesion of the child Velcro 3 and the mother Velcro 12 to fix the support plate 1 on the strap 11, and then make the catheter pass through the guide groove 5 on the catheter guide block 4, and pull the pull plate 18 to move the movable vertical rod 10 upward, so that the catheter enters the limiting groove 15 from the through hole 16, and then release the pull plate 18. The spring 19 returns to its original state and can drive the movable vertical rod 10 to move downward to block the through hole 16. After that, the pressure piece can be used to press the outer wall of the catheter (the limit of the pressure is to ensure that the catheter can flow normally), so as to effectively fix and restrict the catheter, without the need to use tape to adhere and fix it. When removing it, it is only necessary to release the pressure first, and then remove the catheter from the limiting groove 15, without tearing off the tape, to avoid pulling pain, and at the same time avoid secondary injury to the patient's puncture point.

[0042] In a specific embodiment of the present invention, refer to Figure 1 As shown, the pressing member includes:

[0043] A connecting rod 6, the connecting rod 6 is rotatably connected to one end of the upper end surface of the catheter guide block 4;

[0044] A connecting plate 7, the connecting plate 7 is fixed to the top of the connecting rod 6;

[0045] A threaded rod 8, the threaded rod 8 is screwed through the connecting plate 7;

[0046] The pressing strip 9 is rotatably mounted on the bottom end of the threaded rod 8 .

[0047] Among them, see Figure 4 and Figure 5 As shown, a movable column 20 is connected to the bottom end of the connecting rod 6, and a movable groove 21 is formed at one end of the upper end surface of the catheter guide block 4.

[0048] The movable column 20 includes an upper straight rod portion and a lower straight rod portion, the diameter of the lower straight rod portion is larger than the diameter of the upper straight rod portion, and the movable groove 21 includes an upper circular groove matched with the upper straight rod portion and a lower circular groove matched with the lower straight rod portion.

[0049] Through the above, when pressing the catheter, the medical staff can rotate the threaded rod 8 that passes through the connecting plate 7, and use the pressing bar 9 to move downward to press and restrict the catheter.

[0050] By utilizing the rotation of the movable column 20 in the movable groove 21, the connecting rod 6 can be rotated when moving in or out of the catheter, so that the connecting plate 7 is away from the top of the guide groove 5, which is convenient for operation.

[0051] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A central venous catheter fixing clamp, characterized in that: It comprises a connecting component and a catheter fixing component, wherein the connecting component is used to be tied to the patient's arm, and the catheter fixing component is detachably connected to the connecting component; The catheter fixing assembly comprises a support plate (1), a catheter fixing block (2) and a catheter guide block (4); the catheter fixing block (2) and the catheter guide block (4) are fixed on the support plate (1) in a straight line; the catheter fixing block (2) is provided with a limiting groove (15); a through opening (16) is provided at one place of the limiting groove (15); a blocking structure that can be moved up and down is provided at the through opening (16); the catheter guide block (4) is provided with a guide groove (5) with an open upper end; and the catheter guide block (4) is provided with a pressing member for pressing the catheter.

2. A central venous catheter fixing clamp according to claim 1, characterized in that: The connection assembly comprises a binding strap (11) and a Japanese-shaped buckle (13), wherein the Japanese-shaped buckle (13) is installed at one end of the binding strap (11), and a disinfection pad layer (14) is provided on the inner side of the binding strap (11).

3. A central venous catheter fixing clamp according to claim 2, characterized in that: A mother Velcro (12) is fixed to the outer side of the binding strap (11), and both ends of the support plate (1) are connected to child Velcro (3).

4. A central venous catheter fixing clamp according to claim 1, characterized in that: The blocking structure comprises: A groove (17), wherein the groove (17) is formed on the outer wall of the catheter fixing block (2), and the groove (17) is located above the through opening (16); A movable vertical rod (10), the movable vertical rod (10) passes through the bottom of the groove (17) and extends into the through opening (16), and a pull plate (18) is installed at the top end of the movable vertical rod (10); A spring (19) is connected between the bottom of the groove (17) and the pull plate (18), and the spring (19) is sleeved on the outside of the movable vertical rod (10).

5. The central venous catheter fixing clamp according to claim 1, characterized in that: The pressing member comprises: A connecting rod (6), the connecting rod (6) being rotatably connected to one end of the upper end surface of the catheter guide block (4); A connecting plate (7), wherein the connecting plate (7) is fixed to the top end of the connecting rod (6); A threaded rod (8), wherein the threaded rod (8) is screwed and penetrates the connecting plate (7); A pressing strip (9) is rotatably mounted on the bottom end of the threaded rod (8).

6. A central venous catheter fixing clamp according to claim 5, characterized in that: The bottom end of the connecting rod (6) is connected to a movable column (20), and one end of the upper end surface of the catheter guide block (4) is provided with a movable groove (21).

7. A central venous catheter fixing clamp according to claim 6, characterized in that: The movable column (20) comprises an upper straight rod portion and a lower straight rod portion, the diameter of the lower straight rod portion is greater than the diameter of the upper straight rod portion, and the movable groove (21) comprises an upper circular groove matched with the upper straight rod portion and a lower circular groove matched with the lower straight rod portion.

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