Kidney transplantation CVC fixing protective sleeve convenient to maintain

Abstract

The invention belongs to the field of medical supplies, and particularly relates to a kidney transplantation CVC fixing protective sleeve convenient to maintain, which comprises a connecting seat, the front side and the rear side of the connecting seat are fixedly connected with a conveying pipe and a catheter respectively, the left side and the right side of the connecting seat are fixedly connected with fixing rings, and the bottom end of the connecting seat is in contact with a supporting plate. The supporting plate is fixedly connected to the through groove, the bottom end of the protective sleeve body is designed to be in an arc shape, the through groove and a notch are formed in the bottom end and the rear end of the protective sleeve body respectively, and the top end of the protective sleeve body is rotationally connected with a cover plate. Through the structural design of the fixing mechanism, when the cover plate is rotated to close the protective sleeve main body, the connecting seat placed in the protective sleeve main body can be fixed, and the fixing of the connecting seat is relieved in the process of opening the cover plate, so that the connecting seat can be fixed without being in contact with the skin of a patient; therefore, the guide pipe is prevented from being dragged during maintenance.

Description

Technical Field

[0001] The present invention relates to the field of medical supplies, and particularly to a CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance. Background Art

[0002] CVC catheterization, also known as central venous catheterization, is a venous access for various treatments by puncturing the skin into the central vein and is widely used clinically. For kidney transplantation patients, their blood vessels may have poor conditions due to long-term hemodialysis, so CVC catheterization is required. Generally, CVC catheterization is adhered to the patient's skin through a transparent dressing.

[0003] According to the patent document: A CVC fixing and protecting sleeve for kidney transplantation nursing proposed in CN202210971453.3, which includes a paste film. Connecting columns are symmetrically arranged inside the paste film. The outer side of the paste film is snap-connected to a base through the connecting columns. Bases are symmetrically arranged on the outer side of the paste film. A bottom plate is fixedly connected between the bases. A groove is formed at the top of the bottom plate. The outer side of the base is snap-connected to a connecting plate through a snap ring; by setting the bottom plate, the CVC is placed in the groove at the top of the bottom plate, and then the connecting plate is snap-connected to the outer side of the base through the snap rings at both ends. During the snap connection process, the arc-shaped protective sleeve at the bottom of the connecting plate is located outside the CVC. Thus, the CVC is fixed by the arc-shaped protective sleeve and the groove at the top of the bottom plate, and then the bottom plate is fixed to the patient's skin through the paste film, making the CVC fixation more convenient.

[0004] In the prior art, the CVC catheter is fixed to the patient's skin by a transparent dressing. Since the CVC catheter needs to be maintained regularly, during the maintenance process, the transparent dressing needs to be torn off and a new one needs to be pasted on. During the tearing process, because the transparent dressing is adhered to the CVC catheter and the patient's skin, it is inevitable to involve the CVC catheter, thus causing discomfort to the patient; therefore, a CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance is proposed for the above problems. Summary of the Invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance to solve the problem that in the prior art, the CVC catheter is fixed to the patient's skin by a transparent dressing. Since the CVC catheter needs to be maintained regularly, during the maintenance process, the transparent dressing needs to be torn off and a new one needs to be pasted on. During the tearing process, because the transparent dressing is adhered to the CVC catheter and the patient's skin, it is inevitable to involve the CVC catheter, thus causing discomfort to the patient; therefore, a CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance is proposed for the above problems.

[0006] To achieve the above object, the present invention provides a CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance, including a connecting seat. The front and rear sides of the connecting seat are respectively fixedly connected to a delivery tube and a catheter. Both the left and right sides of the connecting seat are fixedly connected with fixing rings. The bottom end of the connecting seat contacts a support plate, and the support plate is fixedly connected to a through groove. The bottom end of the protecting sleeve body is designed in an arc shape. A through groove and a notch are respectively formed in the bottom end and the rear end of the protecting sleeve body. A cover plate is rotatably connected to the top end of the protecting sleeve body. A fixing mechanism is arranged on the bottom end of the cover plate. Clamping mechanisms are arranged on the left and right sides of the inner wall of the protecting sleeve body, and a clamping mechanism is arranged at the rear end of the inner wall of the protecting sleeve body.

[0007] In the above technical solution, preferably, the fixing mechanism includes two groups of moving blocks. Both of the moving blocks are fixedly connected to connecting springs. A clamping column is fixedly connected to the side of the moving block away from the connecting spring. The clamping column is clamped inside a fixing groove, and the fixing groove is formed in the inner wall of the fixing ring. A sliding block is fixedly connected to the bottom end of the moving block, and the sliding block is slidably connected inside a sliding groove. The sliding groove is formed in the bottom end of the inner wall of the protecting sleeve body. Both the sliding block and the sliding groove are designed in a trapezoidal shape. The top end of the moving block abuts against a top block, and the top block is fixedly connected to the bottom end of the cover plate. The bottom end of the top block is designed in a trapezoidal shape.

[0008] In the above technical solution, preferably, the clamping mechanism includes a fixing plate, and the fixing plate is fixedly connected to the bottom end of the cover plate. A clamping groove is formed in the bottom end of the fixing plate, and a clamping block is inserted inside the clamping groove. The clamping block is fixedly connected to a connecting plate. Two groups of first insertion rods and a first spring are fixedly connected to the bottom end of the connecting plate. The first spring is sleeved outside the first insertion rod. The bottom end of the first insertion rod is inserted into a bottom plate. An abutting block is fixedly connected to the side of the connecting plate close to the inner wall of the protecting sleeve body. The abutting block contacts a pulling block. A second spring and a second insertion rod are fixedly connected to the front end of the pulling block. The second insertion rod is inserted into a fixing block. Both the fixing block and the bottom plate are fixedly connected to the inner wall of the protecting sleeve body. A dial block is fixedly connected to the side of the pulling block away from the abutting block, and the dial block is slidably connected inside an activity groove. The activity groove is formed in the protecting sleeve body.

[0009] In the above technical solution, preferably, the clamping mechanism includes two sets of arc-shaped racks, the arc-shaped racks are fixedly connected to the bottom end of the cover plate, the arc-shaped racks are engaged with the first rotating rod, the bottom end of the first rotating rod is engaged with the second rotating rod, the bottom end of the second rotating rod is engaged with the fixed rack, the rear ends of the first rotating rod and the second rotating rod are rotatably connected to the inner wall of the protective sleeve body, both sides of the fixed rack are fixedly connected to the semi-circular ring and the connecting block respectively, a rubber ring is fixedly connected to the inner wall of the semi-circular ring, the rubber ring contacts the conduit, the connecting block is slidably connected to the fixed frame, and the fixed frame is fixedly connected to the inner wall of the protective sleeve body.

[0010] In the above technical solution, preferably, a clamping ring is sleeved on the conveying pipe, the clamping ring abuts against the rear ends of the support frame and the rotating rod, the front end of the support frame is fixedly connected to the inner wall of the protective sleeve body, the front end of the rotating rod is rotatably connected to the convex block, the convex block is fixedly connected to the inner wall of the protective sleeve body, the inner walls of the support frame and the rotating rod contact the conveying pipe, and four sets of winding columns are fixedly connected to the inner wall of the protective sleeve body.

[0011] In the above technical solution, preferably, fixed shells are fixedly connected to both the left and right sides of the protective sleeve body, and the fixed shells are designed in a long rectangular shape.

[0012] In the above technical solution, preferably, a limiting block is fixedly connected to the side of the connecting block away from the fixed rack, and the limiting block abuts against the fixed frame.

[0013] In the above technical solution, preferably, a sealing strip is fixedly connected to the side of the cover plate, a step is formed at the bottom end of the fixing plate, a cushion strip is fixedly connected to the inner wall of the step, the cushion strip abuts against the top end of the connecting seat, and both the cushion strip and the sealing strip are made of rubber.

[0014] In the above technical solution, preferably, a rubber strip is fixedly connected to the inner wall of the notch, and the top part of the rubber strip is designed in a trapezoidal shape.

[0015] In the above technical solution, preferably, two sets of baffles are fixedly connected to the top end of the support plate, and the baffles are attached to the sides of the connecting seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the structural design of the fixing mechanism, when the rotating cover plate closes the protective sleeve body, the connecting seat placed inside the protective sleeve body can be fixed, and the fixing of the connecting seat is released during the process of opening the cover plate, so that the connecting seat can be fixed without contacting the patient's skin, avoiding pulling on the catheter during maintenance, and solving the problem in the prior art of CVC catheterization. In the prior art, the CVC catheter is fixed on the patient's skin by pasting a transparent dressing. Since the CVC catheter needs to be maintained regularly, during the maintenance process, the transparent dressing needs to be torn off and a new one needs to be pasted. During the tearing process, because the transparent dressing is adhered to the CVC catheter and the patient's skin, it is inevitable to pull on the CVC catheter, thus causing discomfort to the patient. 2. Through the structural design of the engaging mechanism, when the two cover plates close the inside of the protective sleeve body, by inserting the block into the slot, the abutment between the fixing plate and the inner wall of the slot can also be achieved to lock the cover plate and ensure that the cover plate will not rotate at this time. 3. Through the structural design of the clamping mechanism, when the cover plate closes the inside of the protective sleeve body, the arc-shaped rack fixed at the bottom end of the cover plate will engage with the first rotating rod and drive it to rotate. Thus, through the mutual engagement between the first rotating rod, the second rotating rod and the fixed rack, the semi-circular ring can be brought into contact with the surface of the catheter to fix the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of the bottom end of the present invention; Figure 3 is a structural schematic diagram of the connecting seat of the present invention; Figure 4 is a structural schematic diagram of the fixing mechanism of the present invention; Figure 5 is a structural schematic diagram of the inside of the protective sleeve body of the present invention; Figure 6 is a structural schematic diagram of the engaging mechanism of the present invention; Figure 7 is a structural schematic diagram of the clamping mechanism of the present invention; Figure 8Schematic diagram of the bottom end of the cover plate of the present invention; Figure 9 Schematic diagram of the structure of the main body of the protective cover of the present invention; Figure 10 Schematic diagram of the connection structure of the bump of the present invention.

[0019] In the figure: 1, connection seat; 20, conduit; 21, fixing ring; 22, delivery pipe; 23, main body of protective cover; 24, support plate; 25, notch; 26, cover plate; 27, through groove; 28, fixing groove; 29, clamping post; 30, moving block; 31, sliding block; 32, connecting spring; 33, top block; 34, sliding groove; 35, fixing plate; 36, clamping groove; 37, clamping block; 38, connecting plate; 39, abutting block; 40, first insertion rod; 41, first spring; 42, pulling block; 43, dialing block; 44, second spring; 45, second insertion rod; 46, fixing block; 47, moving groove; 48, fixing shell; 49, bottom plate; 50, step; 51, cushion strip; 52, sealing strip; 53, arc-shaped rack; 54, rubber ring; 55, semi-circular ring; 56, first rotating rod; 57, second rotating rod; 58, fixing rack; 59, connecting block; 60, limiting block; 61, fixing frame; 62, rubber strip; 64, support frame; 65, rotating rod; 66, clamping ring; 67, bump; 68, baffle; 69, winding post. Detailed implementation manners

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the limitations of the specific embodiments disclosed below.

[0022] Please refer to Figure 1 - Figure 10 As shown, a CVC fixing protective cover for kidney transplantation that is convenient for maintenance includes a connection seat 1. The front and back sides of the connection seat 1 are respectively fixedly connected to a delivery pipe 22 and a conduit 20. Fixing rings 21 are fixed on both the left and right sides of the connection seat 1. The fixing rings 21 and the connection seat 1 are integrally formed. The bottom end of the connection seat 1 is in contact with a support plate 24. The support plate 24 is fixed on a through groove 27 and is integrally formed with the through groove 27. The bottom end of the main body 23 of the protective cover is arc-shaped. A through groove 27 and a notch 25 are respectively formed at the bottom end and the rear end of the main body 23 of the protective cover. Two groups of cover plates 26 are rotatably connected to the top end of the main body 23 of the protective cover. A fixing mechanism is provided at the bottom end of the cover plate 26. Engaging mechanisms are provided on the left and right sides of the inner wall of the main body 23 of the protective cover. A clamping mechanism is provided at the rear end of the inner wall of the main body 23 of the protective cover; Furthermore, the fixing mechanism includes two groups of moving blocks 30. Both groups of moving blocks 30 are fixedly welded to the connecting spring 32. A clamping post 29 is fixedly welded to the side of the moving block 30 away from the connecting spring 32. The clamping post 29 is clamped inside the fixing groove 28, and the fixing groove 28 is opened on the inner wall of the fixing ring 21. A slider 31 is fixedly welded to the bottom end of the moving block 30. The slider 31 is slidably connected inside the sliding groove 34, and the sliding groove 34 is opened at the bottom end of the inner wall of the protective sleeve body 23. Both the slider 31 and the sliding groove 34 are trapezoidally designed. The top end of the moving block 30 abuts against the top block 33. The top block 33 is adhesively fixed to the bottom end of the cover plate 26, and the bottom end of the top block 33 is trapezoidally designed; Furthermore, the engaging mechanism includes a fixing plate 35. The fixing plate 35 is adhesively fixed to the bottom end of the cover plate 26. A clamping groove 36 is opened at the bottom end of the fixing plate 35. A clamping block 37 is inserted inside the clamping groove 36. The clamping block 37 is fixedly welded to the connecting plate 38. Two groups of first insertion rods 40 and first springs 41 are fixedly welded to the bottom end of the connecting plate 38. The first spring 41 is sleeved outside the first insertion rod 40. The bottom end of the first insertion rod 40 is inserted into the bottom plate 49. An abutting block 39 is fixedly welded to the side of the connecting plate 38 close to the inner wall of the protective sleeve body 23. The abutting block 39 contacts the pulling block 42. A second spring 44 and a second insertion rod 45 are fixedly welded to the front end of the pulling block 42. The second insertion rod 45 is inserted into the fixing block 46. Both the fixing block 46 and the bottom plate 49 are adhesively fixed to the inner wall of the protective sleeve body 23. A dial block 43 is fixedly welded to the side of the pulling block 42 away from the abutting block 39. The dial block 43 is slidably connected inside the moving groove 47, and the moving groove 47 is opened on the protective sleeve body 23; Furthermore, the clamping mechanism includes two groups of arc-shaped racks 53. The arc-shaped racks 53 are adhesively fixed to the bottom end of the cover plate 26. The arc-shaped racks 53 are engaged with the first rotating rod 56. The bottom end of the first rotating rod 56 is engaged with the second rotating rod 57. The bottom end of the second rotating rod 57 is engaged with the fixed rack 58. The rear ends of both the first rotating rod 56 and the second rotating rod 57 are rotatably connected to the inner wall of the protective sleeve body 23. Both sides of the fixed rack 58 are fixedly welded to the semi-circular ring 55 and the connecting block 59 respectively. A rubber ring 54 is adhesively fixed to the inner wall of the semi-circular ring 55. The rubber ring 54 contacts the conduit 20. The connecting block 59 is slidably connected to the fixed frame 61, and the fixed frame 61 is adhesively fixed to the inner wall of the protective sleeve body 23; During operation, the CVC catheterization in the prior art is fixed to the patient's skin by a transparent dressing. Since the CVC catheterization needs to be maintained regularly, during the maintenance process, the transparent dressing needs to be torn off and a new one applied. During the tearing process, because the transparent dressing is adhered to the CVC catheterization and the patient's skin, it is inevitable to involve the CVC catheterization, thus causing discomfort to the patient. Through the structural design of the fixing mechanism, when the cover plate 26 is rotated to close the protective sleeve body 23, the connecting seat 1 placed inside the protective sleeve body 23 can be fixed, and the fixing of the connecting seat 1 is released during the process of opening the cover plate 26, so that the connecting seat 1 can be fixed without contacting the patient's skin, in order to avoid pulling on the catheter 20 during maintenance. An adhesive dressing is fixed to the bottom end of the protective sleeve body 23 to facilitate fixing the protective sleeve body 23 to the patient's skin, and the bottom end of the protective sleeve body 23 is designed in an arc shape to facilitate fitting with the patient's skin. A through groove 27 is provided at the bottom end of the protective sleeve body 23 to reduce the contact area between the bottom end of the protective sleeve body 23 and the patient's skin. When fixing the connecting seat 1 inside the protective sleeve body 23, first, push the two moving blocks 30 to move inside the protective sleeve body 23 and ensure that the two moving blocks 30 are located at the middle positions of the sliding grooves 34. Then, place the connecting seat 1 on the two support plates 24 and ensure that the fixing rings 21 on the left and right sides of the connecting seat 1 pass through the two moving blocks 30. Then, rotate the two cover plates 26 on the top end of the protective sleeve body 23 to close the inside of the protective sleeve body 23. At this time, the top block 33 fixed to the bottom end of the cover plate 26 will be inserted between the two moving blocks 30 and push the two moving blocks 30 away from each other. The connecting spring 32 used to connect the two moving blocks 30 will be stretched, and the slider 31 fixed to the bottom end of the moving block 30 will slide in the sliding groove 34. When the moving block 30 moves to the maximum distance, the latch 29 fixed to the moving block 30 will be inserted into the fixing groove 28. At this time, the connecting seat 1 can be fixed inside the protective sleeve body 23 through the engagement between the fixing groove 28 and the latch 29. Similarly, when opening the cover plate 26 to maintain the inside of the protective sleeve body 23, the top block 33 fixed to the bottom end of the cover plate 26 will gradually separate from the moving block 30. When the top block 33 is not in contact with the moving block 30, under the action of the connecting spring 32, the two moving blocks 30 will contact each other. The bottom ends of the slider 31, the sliding groove 34, and the top block 33 are all designed in a trapezoidal shape. The cover plate 26 is made of highly transparent PP material to facilitate seeing through the inside of the protective sleeve body 23.

[0023] Through the structural design of the clamping mechanism, when the two sets of cover plates 26 close the inside of the protective sleeve body 23, by inserting the clamping block 37 into the clamping groove 36, the abutment between the fixing plate 35 and the inner wall of the clamping groove 36 can also be achieved to lock the cover plate 26, ensuring that the cover plate 26 will not rotate at this time. To ensure that the cover plate 26 will not automatically open when closing the inside of the protective sleeve body 23, two sets of fixing plates 35 are fixed on the bottom ends of the two sets of cover plates 26. The fixing plates 35 are provided with clamping grooves 36. Before rotating the cover plate 26 to close the protective sleeve body 23, first pull the dial block 43 forward. The dial block 43 will drive the pull block 42 to move, and the first spring 41 fixed on the front end of the pull block 42 will be compressed. Since the pull block 42 contacts the abutting block 39, and corresponding inclined surfaces are provided on both the abutting block 39 and the pull block 42, the abutting block 39 can be pushed downward during the movement of the pull block 42. The abutting block 39 will drive the connecting plate 38 to move downward, and the first spring 41 fixed on the bottom end of the connecting plate 38 is compressed. When the fixing mechanism fixes the connecting seat 1, the dial block 43 is no longer pulled. Under the action of the second spring 44, the pull block 42 will move back to its original position. Since the abutting block 39 no longer has the abutment of the pull block 42, it will also automatically move upward under the action of the first spring 41. At this time, the clamping block 37 fixed on the top end of the connecting plate 38 will be inserted into the inside of the clamping groove 36, so as to ensure that the cover plate 26 will not rotate through the engagement between the inner wall of the clamping groove 36 and the clamping block 37.

[0024] Through the structural design of the clamping mechanism, while the cover plate 26 closes the inside of the protective sleeve body 23, the arc-shaped rack 53 fixed on the bottom end of the cover plate 26 will engage with the first rotating rod 56 and drive it to rotate. Thus, through the mutual engagement between the first rotating rod 56, the second rotating rod 57 and the fixed rack 58, the semi-circular ring 55 can abut against the surface of the conduit 20 to fix the conduit 20. While the cover plate 26 is closing, the arc-shaped rack 53 fixed on the bottom end of the cover plate 26 will engage with the first rotating rod 56 and drive the first rotating rod 56 to rotate. The first rotating rod 56 transmits the rotation to the fixed rack 58 through the second rotating rod 57 and pushes the fixed rack 58 to move. At this time, the fixed rack 58 will move in the direction close to the conduit 20, and the semi-circular ring 55 fixed on the fixed rack 58 can clamp and fix the conduit 20. When the cover plate 26 is opened, it will drive the first rotating rod 56 to rotate again through the engagement with the first rotating rod 56, so that the fixed rack 58 can move in the direction away from the conduit 20. A rubber ring 54 is fixed on the inner wall of the semi-circular ring 55 to improve the friction between the semi-circular ring 55 and the conduit 20 through the rubber ring 54, making the fixing effect of the semi-circular ring 55 on the conduit 20 better.

[0025] Further, a snap ring 66 is sleeved on the conveying pipe 22. The snap ring 66 abuts against the rear ends of the support frame 64 and the rotating rod 65. The front end of the support frame 64 is fixedly adhered to the inner wall of the protective sleeve body 23 through glue. The front end of the rotating rod 65 is rotatably connected to the convex block 67, and the convex block 67 is fixedly adhered to the inner wall of the protective sleeve body 23. The inner walls of the support frame 64 and the rotating rod 65 are in contact with the conveying pipe 22. Four winding columns 69 are fixedly adhered to the inner wall of the protective sleeve body 23; During operation, the rear part of the conveying pipe 22 is wound around the winding column 69 to ensure that the part of the conveying pipe 22 inside the protective sleeve body 23 is not in a taut state. When the conveying pipe 22 is pulled, the snap ring 66 sleeved on the conveying pipe 22 will contact the rear end of the rotating rod 65 and push the rotating rod 65 to rotate until the rotating rod 65 fits the conveying pipe 22. The rotating rod 65 will squeeze the surface of the conveying pipe 22, and the frictional force received by the conveying pipe 22 will also increase accordingly, thereby fixing the conveying pipe 22.

[0026] Further, fixing shells 48 are fixedly adhered to both the left and right sides of the protective sleeve body 23. The fixing shells 48 are designed in a long rectangular shape; During operation, the fixing shells 48 are used to protect the dial block 43 to prevent it from moving due to accidental contact.

[0027] Further, a limiting block 60 is fixedly welded to the side of the connecting block 59 away from the fixed rack 58. The limiting block 60 abuts against the fixed frame 61; During operation, the movement distance of the connecting block 59 is restricted by the abutment of the limiting block 60 against the fixed frame 61 to prevent the connecting block 59 from sliding out of the fixed frame 61.

[0028] Further, a sealing strip 52 is fixedly adhered to the side of the cover plate 26. A step 50 is formed at the bottom end of the fixing plate 35. A cushion strip 51 is fixedly adhered to the inner wall of the step 50. The cushion strip 51 abuts against the top end of the connecting seat 1. Both the cushion strip 51 and the sealing strip 52 are made of rubber material; During operation, a sealing strip 52 is fixed to the side of the cover plate 26. The sealing strip 52 is used to improve the sealing performance to ensure that there is no gap between the two cover plates 26. A step 50 is also formed at the bottom end of the fixing plate 35, and a cushion strip 51 is fixed on the step 50. When the cover plate 26 is closed, the cushion strip 51 will abut against the top end of the connecting seat 1 to better fix the connecting seat 1 and reduce the wear between the fixing plate 35 and the top end of the connecting seat 1 through the deformation of the cushion strip 51.

[0029] Further, a rubber strip 62 is fixedly adhered to the inner wall of the notch 25. The bottom part of the rubber strip 62 fits the inner wall of the notch 25, and the top part of the rubber strip 62 is trapezoidally designed; During operation, the rubber strip 62 contacts the surface of the conduit 20 to facilitate the auxiliary fixation of the conduit 20, and the top portion of the rubber strip 62 is trapezoidally designed to confine the conduit 20 within the notch 25.

[0030] Furthermore, two groups of baffles 68 are fixed on the top of the support plate 24. The baffles 68 are integrally formed with the support plate 24 and are in contact with the side of the connecting seat 1. During operation, the connecting seat 1 is pre-fixed on the protective sleeve body 23 through the contact between the baffle 68 and the side of the connecting seat 1 to facilitate the subsequent fixation operation of the connecting seat 1.

[0031] Working principle: In the existing CVC catheterization technology, the CVC catheter is fixed to the patient's skin by a transparent dressing. Since the CVC catheter needs to be maintained regularly, during the maintenance process, the transparent dressing needs to be torn off and a new transparent dressing needs to be reapplied. During the tearing process, since the transparent dressing is adhered to the CVC catheter and the patient's skin, it is inevitable to involve the CVC catheter, thus causing discomfort to the patient. Through the structural design of the fixing mechanism, when the cover plate 26 is rotated to close the protective sleeve body 23, the connecting seat 1 placed inside the protective sleeve body 23 can be fixed, and the fixing of the connecting seat 1 is released during the process of opening the cover plate 26, so that the connecting seat 1 can be fixed without contacting the patient's skin, so as to avoid involving the catheter 20 during maintenance. A dressing is adhesively fixed to the bottom end of the protective sleeve body 23 to facilitate fixing the protective sleeve body 23 to the patient's skin, and the bottom end of the protective sleeve body 23 is designed in an arc shape to facilitate fitting with the patient's skin. A through groove 27 is provided at the bottom end of the protective sleeve body 23 to reduce the contact area between the bottom end of the protective sleeve body 23 and the patient's skin. When the connecting seat 1 inside the protective sleeve body 23 needs to be fixed, first, two moving blocks 30 are pushed to move inside the protective sleeve body 23, and it is ensured that the two moving blocks 30 are located at the middle positions of the sliding grooves 34. Then, the connecting seat 1 is placed on the two support plates 24, and it is ensured that the fixing rings 21 on the left and right sides of the connecting seat 1 pass through the two moving blocks 30. Then, the two cover plates 26 on the top end of the protective sleeve body 23 are rotated to close the inside of the protective sleeve body 23. At this time, the top block 33 fixed to the bottom end of the cover plate 26 will be inserted between the two moving blocks 30 and push the two moving blocks 30 away from each other. The connecting spring 32 used to connect the two moving blocks 30 will be stretched, and the slider 31 fixed to the bottom end of the moving block 30 will slide in the sliding groove 34. When the moving block 30 moves to the maximum distance, the clamping post 29 fixed to the moving block 30 will be inserted into the fixing groove 28. At this time, the connecting seat 1 can be fixed inside the protective sleeve body 23 through the clamping between the fixing groove 28 and the clamping post 29. Similarly, when the cover plate 26 is opened to maintain the inside of the protective sleeve body 23, the top block 33 fixed to the bottom end of the cover plate 26 will gradually separate from the moving block 30. When the top block 33 is not in contact with the moving block 30, under the action of the connecting spring 32, the two moving blocks 30 will contact each other. The bottom ends of the slider 31, the sliding groove 34, and the top block 33 are all designed in a trapezoidal shape. The cover plate 26 is made of highly transparent PP material to facilitate penetrating the inside of the protective sleeve body 23.

[0032] Through the structural design of the clamping mechanism, when the two groups of cover plates 26 enclose the inside of the protective sleeve body 23, by inserting the clamping block 37 into the clamping groove 36, the abutment between the fixing plate 35 and the inner wall of the clamping groove 36 can be achieved to lock the cover plate 26, ensuring that the cover plate 26 will not rotate at this time. In order to ensure that the cover plate 26 will not automatically open when enclosing the inside of the protective sleeve body 23, two groups of fixing plates 35 are fixed on the bottom ends of the two groups of cover plates 26. The fixing plates 35 are provided with clamping grooves 36. Before rotating the cover plate 26 to enclose the protective sleeve body 23, first pull the dial 43 forward. The dial 43 will drive the pull block 42 to move, and the first spring 41 fixed on the front end of the pull block 42 will be compressed. Since the pull block 42 contacts the abutting block 39, and corresponding inclined surfaces are provided on both the abutting block 39 and the pull block 42, the abutting block 39 can be pushed downward during the movement of the pull block 42. The abutting block 39 will drive the connecting plate 38 to move downward, and the first spring 41 fixed on the bottom end of the connecting plate 38 is compressed. When the fixing mechanism fixes the connecting seat 1, the dial 43 is no longer pulled. Under the action of the second spring 44, the pull block 42 will move back to its original position. Since the abutting block 39 no longer abuts against the pull block 42, it will also automatically move upward under the action of the first spring 41. At this time, the clamping block 37 fixed on the top end of the connecting plate 38 will be inserted into the inside of the clamping groove 36, so as to ensure that the cover plate 26 will not rotate through the engagement between the inner wall of the clamping groove 36 and the clamping block 37.

[0033] Through the structural design of the clamping mechanism, while the cover plate 26 encloses the inside of the protective sleeve body 23, the arc-shaped rack 53 fixed on the bottom end of the cover plate 26 will engage with the first rotating rod 56 and drive it to rotate. Thus, through the mutual engagement between the first rotating rod 56, the second rotating rod 57 and the fixed rack 58, the semi-circular ring 55 can be abutted against the surface of the conduit 20 to fix the conduit 20. While the cover plate 26 is closed, the arc-shaped rack 53 fixed on the bottom end of the cover plate 26 will engage with the first rotating rod 56 and drive the first rotating rod 56 to rotate. The first rotating rod 56 transmits the rotation to the fixed rack 58 through the second rotating rod 57 and pushes the fixed rack 58 to move. At this time, the fixed rack 58 will move in the direction close to the conduit 20, and the semi-circular ring 55 fixed on the fixed rack 58 can clamp and fix the conduit 20. When the cover plate 26 is opened, it will drive the first rotating rod 56 to rotate again through the engagement with the first rotating rod 56, so that the fixed rack 58 can move in the direction away from the conduit 20. A rubber ring 54 is fixed on the inner wall of the semi-circular ring 55 to improve the friction between the semi-circular ring 55 and the conduit 20 through the rubber ring 54, making the fixing effect of the semi-circular ring 55 on the conduit 20 better.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance, comprising a connecting seat (1). The front and rear sides of the connecting seat (1) are respectively fixedly connected to a delivery tube (22) and a catheter (20). Both the left and right sides of the connecting seat (1) are fixedly connected with fixing rings (21), and it is characterized in that: The bottom end of the connection base (1) is in contact with the support plate (24), the support plate (24) is fixedly connected to the through groove (27), the bottom end of the protective sleeve body (23) is designed in an arc shape, a through groove (27) and a notch (25) are respectively formed at the bottom end and the rear end of the protective sleeve body (23), the top end of the protective sleeve body (23) is rotatably connected to a cover plate (26), a fixing mechanism is arranged at the bottom end of the cover plate (26), engaging mechanisms are arranged on the left and right sides of the inner wall of the protective sleeve body (23), and a clamping mechanism is arranged at the rear end of the inner wall of the protective sleeve body (23).

2. The CVC fixing and protecting sheath for kidney transplantation that is convenient for maintenance according to claim 1, wherein: The fixing mechanism includes two sets of moving blocks (30), both of the two sets of moving blocks (30) are fixedly connected to a connecting spring (32), a clamping post (29) is fixedly connected to the side of the moving block (30) away from the connecting spring (32), the clamping post (29) is clamped inside a fixing groove (28), the fixing groove (28) is formed on the inner wall of a fixing ring (21), a sliding block (31) is fixedly connected to the bottom end of the moving block (30), the sliding block (31) is slidably connected inside a sliding groove (34), the sliding groove (34) is formed at the bottom end of the inner wall of the protective sleeve body (23), both the sliding block (31) and the sliding groove (34) are designed in a trapezoidal shape, the top end of the moving block (30) abuts against a top block (33), the top block (33) is fixedly connected to the bottom end of the cover plate (26), and the bottom end of the top block (33) is designed in a trapezoidal shape.

3. The CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance according to claim 2, wherein: The engaging mechanism includes a fixing plate (35), the fixing plate (35) is fixedly connected to the bottom end of the cover plate (26), a clamping groove (36) is formed at the bottom end of the fixing plate (35), a clamping block (37) is inserted inside the clamping groove (36), the clamping block (37) is fixedly connected to a connecting plate (38), two sets of first insertion rods (40) and a first spring (41) are fixedly connected to the bottom end of the connecting plate (38), the first spring (41) is sleeved outside the first insertion rod (40), the bottom end of the first insertion rod (40) is inserted into a bottom plate (49), an abutting block (39) is fixedly connected to the side of the connecting plate (38) close to the inner wall of the protective sleeve body (23), the abutting block (39) is in contact with a pulling block (42), a second spring (44) and a second insertion rod (45) are fixedly connected to the front end of the pulling block (42), the second insertion rod (45) is inserted into a fixing block (46), both the fixing block (46) and the bottom plate (49) are fixedly connected to the inner wall of the protective sleeve body (23), a dialing block (43) is fixedly connected to the side of the pulling block (42) away from the abutting block (39), and the dialing block (43) is slidably connected inside a moving groove (47), and the moving groove (47) is formed on the protective sleeve body (23).

4. The CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance according to claim 3, characterized in that: The clamping mechanism includes two sets of arc-shaped racks (53), the arc-shaped racks (53) are fixedly connected to the bottom end of the cover plate (26), the arc-shaped racks (53) are engaged with the first rotating rod (56), the bottom end of the first rotating rod (56) is engaged with the second rotating rod (57), the bottom end of the second rotating rod (57) is engaged with the fixed rack (58), the rear ends of the first rotating rod (56) and the second rotating rod (57) are rotatably connected to the inner wall of the protective sleeve body (23), both sides of the fixed rack (58) are fixedly connected to the semi-circular ring (55) and the connecting block (59) respectively, a rubber ring (54) is fixedly connected to the inner wall of the semi-circular ring (55), the rubber ring (54) contacts the conduit (20), the connecting block (59) is slidably connected to the fixed frame (61), and the fixed frame (61) is fixedly connected to the inner wall of the protective sleeve body (23).

5. The CVC fixing and protecting sleeve for kidney transplantation which is convenient for maintenance according to claim 4, wherein: A snap ring (66) is sleeved on the conveying pipe (22), the snap ring (66) abuts against the rear ends of the support frame (64) and the rotating rod (65), the front end of the support frame (64) is fixedly connected to the inner wall of the protective sleeve body (23), the front end of the rotating rod (65) is rotatably connected to the convex block (67), the convex block (67) is fixedly connected to the inner wall of the protective sleeve body (23), the inner walls of the support frame (64) and the rotating rod (65) contact and are in contact with the conveying pipe (22), and four sets of winding columns (69) are fixedly connected to the inner wall of the protective sleeve body (23).

6. The CVC fixing and protecting sleeve for kidney transplantation which is convenient for maintenance according to claim 5, characterized in that: Fixed shells (48) are fixedly connected to both the left and right sides of the protective sleeve body (23), and the fixed shells (48) are designed in a long rectangular shape.

7. The CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance according to claim 6, wherein: A limiting block (60) is fixedly connected to the side of the connecting block (59) away from the fixed rack (58), and the limiting block (60) abuts against the fixed frame (61).

8. The CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance according to claim 7, characterized in that: A sealing strip (52) is fixedly connected to the side of the cover plate (26), a step (50) is formed at the bottom end of the fixed plate (35), a cushion strip (51) is fixedly connected to the inner wall of the step (50), the cushion strip (51) abuts against the top end of the connecting seat (1), and both the cushion strip (51) and the sealing strip (52) are made of rubber material.

9. The CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance according to claim 8, wherein: A rubber strip (62) is fixedly connected to the inner wall of the notch (25), and the top part of the rubber strip (62) is designed in a trapezoidal shape.

10. A CVC fixing and protecting sleeve for kidney transplantation that is convenient for maintenance, characterized in that: Two sets of baffles (68) are fixedly connected to the top end of the support plate (24), and the baffles (68) are attached to the side of the connecting seat (1).

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