Medical catheter anti-blocking detection equipment

Abstract

The utility model discloses medical catheter anti-blocking detection equipment which comprises a base, a positioning block is arranged on the base, a semicircular positioning groove corresponding to a medical catheter is formed in the positioning block, a fixing mechanism is arranged at one end of the positioning block, and a clamping mechanism is arranged at the other end of the positioning block. The end, provided with the clamping mechanism, of the positioning block is provided with a fixed catheter, a catheter opening of the fixed catheter is aligned with and connected with the positioning groove, the inner diameter of the fixed catheter is equal to that of the medical catheter, a movable rod is arranged in the fixed catheter, and the end, facing the positioning groove, of the movable rod is a detection end. The detection end is provided with a sensing device for detecting burrs on the inner wall of the medical catheter, the other end, away from the detection end, of the moving rod is connected with a driving mechanism, the inner wall of the medical catheter can be detected more accurately, and the situation that defective medical catheters flow into the market is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and more specifically relates to a medical catheter anti-blockage detection device. Background Technology

[0002] Various medical catheters are used to transport gases and liquids. Some large medical catheters are used to bind and guide other medical devices to accurately enter the patient's body. Therefore, it is necessary to ensure that the inner wall of medical catheters is completely smooth and free of burrs.

[0003] Due to advancements in medical catheter manufacturing processes and equipment, burrs are rarely found clogging the inner walls of medical catheters. Therefore, current methods for detecting clogging in medical catheters typically involve manual air connection, where one end of the catheter is connected to an air nozzle and the other end to a pressure gauge to observe the pressure. Obviously, this method cannot accurately detect whether there are burrs clogging the inside of the catheter, posing a significant risk of detection errors, which could ultimately affect its use and lead to serious medical accidents. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a medical catheter anti-blockage detection device that can more accurately detect the inner wall of medical catheters, thereby reducing the inflow of defective medical catheters into the market.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical catheter anti-blockage detection device, comprising a base, a positioning block provided on the base, a semi-circular positioning groove corresponding to the medical catheter provided on the positioning block, a fixing mechanism provided at one end of the positioning block, a clamping mechanism provided at the other end of the positioning block, a fixed catheter provided at the end of the positioning block with the clamping mechanism, the opening of the fixed catheter being aligned with and connected to the positioning groove, the inner diameter of the fixed catheter being equal to the inner diameter of the medical catheter, a moving rod provided inside the fixed catheter, the end of the moving rod facing the positioning groove being a detection end, a sensing device for detecting burrs on the inner wall of the medical catheter being provided on the detection end, and a driving mechanism connected to the other end of the moving rod away from the detection end.

[0006] Furthermore, the fixing mechanism includes a fixing block, the fixing block is provided with a fixing hole corresponding to the positioning groove, a fixing pin is provided in the fixing hole, clamps are provided on both sides of the fixing pin, a screw is rotatably connected to the clamps, the screw is threadedly connected to the fixing block, and the screw passes through the fixing block.

[0007] Furthermore, the clamping mechanism includes a clamping block, which is detachably connected to the positioning block. The clamping block is provided with a clamping groove corresponding to the positioning groove. The clamping groove and the positioning groove are closed to form a circular clamping hole, and the inner diameter of the circular clamping hole is the same as the outer diameter of the medical catheter.

[0008] Furthermore, the driving mechanism includes a driving block, the driving block is connected to a moving rod, and a linear motor is disposed between the driving block and the base.

[0009] Furthermore, a number of guide wheels are rotatably connected to the outer cylindrical surface of the movable rod, and the guide wheels can roll into contact with the inner wall of the fixed catheter and the inner wall of the medical catheter.

[0010] Furthermore, the sensing device includes a pressure sensing plate and a pressure sensor. The pressure sensor is fixed to the detection end of the moving rod, and the pressure sensing plate is connected to the sensing end of the pressure sensor. The outer edge of the pressure sensing plate contacts the inner wall of the medical catheter. The moving rod is a hollow rod with a wire inside. The wire is electrically connected to the pressure sensor, and the other end of the wire is connected to an external controller.

[0011] Furthermore, the sensing device includes an optical probe, the moving rod is a hollow rod with a wire inside, the wire is electrically connected to the optical probe, and the other end of the wire is connected to an external controller.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: During testing, the medical catheter is placed in the positioning groove, and one end is fixed by the fixing mechanism. While keeping the medical catheter horizontal and without bending, the other end is clamped and fixed by the clamping mechanism. Then, the driving mechanism drives the moving rod inside the fixed catheter, so that the sensing device on its detection end extends into the medical catheter. This allows for more accurate detection of the inner wall of the medical catheter through the sensing device, thereby reducing the flow of defective medical catheters into the market. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the medical catheter anti-blockage detection device of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure inside the fixed catheter in the medical catheter anti-blockage detection device of this utility model;

[0015] Figure 3 This is a side view of the clamping mechanism in the medical catheter anti-blockage detection device of this utility model;

[0016] Figure 4 This is a schematic diagram of the fixing mechanism in the medical catheter anti-blockage detection device of this utility model.

[0017] Reference numerals: 1. Base; 2. Positioning block; 3. Positioning groove; 4. Fixed catheter; 5. Moving rod; 6. Fixed block; 7. Fixed pin; 8. Clamping plate; 9. Screw; 10. Clamping block; 11. Clamping groove; 12. Drive block; 13. Linear motor; 14. Connecting rod; 15. Guide wheel; 16. Pressure sensing plate; 17. Pressure sensor; 18. Wire; 19. Medical catheter; 20. Burr; 21. Fixing hole. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0020] Reference Figures 1 to 4 The present invention will be further described below.

[0021] A medical catheter anti-blockage detection device includes a base 1, a positioning block 2 on the base 1, a semi-circular positioning groove 3 corresponding to the medical catheter on the positioning block 2, a fixing mechanism at one end of the positioning block 2, and a clamping mechanism at the other end of the positioning block 2. A fixed catheter 4 is provided at the end of the positioning block 2 with the clamping mechanism, the opening of the fixed catheter 4 is aligned with and connected to the positioning groove 3, the inner diameter of the fixed catheter 4 is equal to the inner diameter of the medical catheter, a moving rod 5 is provided inside the fixed catheter 4, the end of the moving rod 5 facing the positioning groove 3 is the detection end, a sensing device for detecting burrs on the inner wall of the medical catheter is provided on the detection end, and a driving mechanism is connected to the other end of the moving rod 5 away from the detection end.

[0022] like Figures 1 to 4 As shown, during testing, the medical catheter is placed in the positioning groove 3, and one end is fixed by the fixing mechanism. While keeping the medical catheter horizontal and without bending, the other end is clamped and fixed by the clamping mechanism. Then, the driving mechanism drives the moving rod 5 inside the fixed catheter 4, so that the sensing device on its detection end extends into the medical catheter. This allows for more accurate detection of the inner wall of the medical catheter through the sensing device, thereby reducing the flow of defective medical catheters into the market.

[0023] like Figure 4As shown, in this preferred embodiment, the fixing mechanism includes a fixing block 6, the fixing block 6 is provided with a fixing hole 21 corresponding to the positioning groove 3, a fixing pin 7 is provided in the fixing hole 21, clamping plates 8 are provided on both sides of the fixing pin 7, and a screw 9 is rotatably connected to the clamping plate 8. The screw 9 is threadedly connected to the fixing block 6 and passes through the fixing block 6.

[0024] Specifically, when fixing the end of the medical catheter, align the end of the medical catheter with the fixing pin 7, and then insert it into the fixing hole 21 so that the fixing pin 7 extends into the medical catheter until the end face of the medical catheter contacts the bottom surface of the fixing hole 21. Then rotate the screw 9 to move the clamp 8 toward the medical catheter until it is pressed against the outer surface of the medical catheter, thus fixing the end of the medical catheter in the fixing hole 21.

[0025] Specifically, a friction layer can be set on the clamping plate 8 to increase the friction during clamping.

[0026] like Figure 3 As shown in the preferred embodiment, the clamping mechanism includes a clamping block 10, which is detachably connected to the positioning block 2. The clamping block 10 is provided with a clamping groove 11 corresponding to the positioning groove 3. The clamping groove 11 and the positioning groove 3 are closed to form a circular clamping hole, and the inner diameter of the circular clamping hole is the same as the outer diameter of the medical catheter.

[0027] Specifically, after the medical catheter is placed in the positioning groove 3, the clamping block 10 is placed above the positioning block 2 to form a circular clamping hole to hold the medical catheter. The inner wall of the circular clamping hole is tightly fitted with the outer side of the medical catheter, but does not compress the medical catheter. The medical catheter does not deform and is fixed by friction.

[0028] Specifically, a friction layer can be provided on the inner wall of the groove 11 to increase friction.

[0029] like Figure 3 As shown, specifically, the clamping block 10 and the positioning block 2 are detachably connected, such as by a snap-fit ​​plate connection or a bolt connection.

[0030] like Figures 1 to 3 As shown in the preferred embodiment, the driving mechanism includes a driving block 12, the driving block 12 is connected to the moving rod 5, and a linear motor 13 is provided between the driving block 12 and the base 1.

[0031] Specifically, the linear motor 13 drives the moving rod 5 to move at a constant speed, thereby causing the sensing device to move linearly inside the medical catheter.

[0032] like Figures 1 to 3As shown, specifically, a connecting rod 14 is connected above the driving block 12. The connecting rod 14 extends towards the moving rod 5 to the top of the moving rod 5, and then extends downward through the fixed guide tube 4 to connect to the moving rod 5. The fixed guide tube 4 is provided with a clearance groove corresponding to the connecting rod 14. The clamping block 10 is also provided with a clearance groove corresponding to the connecting rod 14. The driving block 12 drives the moving rod 5 through the connecting rod 14.

[0033] like Figure 2 As shown in this embodiment, preferably, a plurality of guide wheels 15 are rotatably connected to the outer cylindrical surface of the moving rod 5, and the guide wheels 15 can roll in contact with the inner wall of the fixed catheter 4 and the inner wall of the medical catheter.

[0034] Specifically, the guide wheel 15 provides stable movement for the moving rod 5.

[0035] like Figure 1 As shown, in this preferred embodiment, the sensing device includes a pressure sensing plate 16 and a pressure sensor 17. The pressure sensor 17 is fixed to the detection end of the moving rod 5, and the pressure sensing plate 16 is connected to the sensing end of the pressure sensor 17. The outer edge of the pressure sensing plate 16 contacts the inner wall of the medical catheter. The moving rod 5 is a hollow rod with a wire 18 inside. The wire 18 is electrically connected to the pressure sensor 17, and the other end of the wire 18 is connected to an external controller.

[0036] Specifically, when the outer edge of the pressure sensing element 16 contacts the inner wall of the medical catheter and moves, the resulting sliding friction is converted into pressure by the pressure sensor 17. The pressure sensor 17 then converts the pressure into an electrical signal and transmits it to the external controller via the wire 18. When the pressure sensing element 16 moves at a constant speed and the inner wall of the medical catheter is smooth, the pressure detected by the pressure sensor 17 fluctuates stably within a certain range. If there is a significant jump in the middle, it may be that there are obvious burrs on the inner wall of the medical catheter, which affect the force between the catheter and the pressure sensing element 16. In this case, it can be determined whether the medical catheter is qualified.

[0037] Another detection structure of the sensing device is that the sensing device includes an optical probe, the moving rod 5 is a hollow rod with a wire 18 inside, the wire 18 is electrically connected to the optical probe, and the other end of the wire 18 is connected to an external controller.

[0038] Specifically, an optical probe is used to visually inspect and directly determine whether there are burrs or protrusions on the inner wall of the medical catheter, and the image is directly projected onto an external controller.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A medical catheter anti-blockage detection device, characterized in that: The device includes a base, on which a positioning block is provided. The positioning block has a semi-circular positioning groove corresponding to a medical catheter. One end of the positioning block is provided with a fixing mechanism, and the other end of the positioning block is provided with a clamping mechanism. A fixed catheter is provided at the end of the positioning block with the clamping mechanism. The opening of the fixed catheter is aligned with and connected to the positioning groove. The inner diameter of the fixed catheter is equal to the inner diameter of the medical catheter. A moving rod is provided inside the fixed catheter. The end of the moving rod facing the positioning groove is a detection end. A sensing device for detecting burrs on the inner wall of the medical catheter is provided on the detection end. A driving mechanism is connected to the other end of the moving rod away from the detection end.

2. The medical catheter anti-blockage detection device according to claim 1, characterized in that: The fixing mechanism includes a fixing block, a fixing hole with a corresponding positioning groove on the fixing block, a fixing pin in the fixing hole, clamps on both sides of the fixing pin, a screw rotatably connected to the clamps, the screw threadedly connected to the fixing block, and the screw passing through the fixing block.

3. The medical catheter anti-blockage detection device according to claim 1, characterized in that: The clamping mechanism includes a clamping block, which is detachably connected to a positioning block. The clamping block is provided with a corresponding positioning groove. The clamping groove and the positioning groove are joined to form a circular clamping hole. The inner diameter of the circular clamping hole is the same as the outer diameter of the medical catheter.

4. The medical catheter anti-blockage detection device according to claim 1, characterized in that: The driving mechanism includes a driving block, which is connected to a moving rod, and a linear motor is provided between the driving block and the base.

5. The medical catheter anti-blockage detection device according to claim 1, characterized in that: Several guide wheels are rotatably connected to the outer cylindrical surface of the movable rod, and the guide wheels can roll into contact with the inner wall of the fixed catheter and the inner wall of the medical catheter.

6. The medical catheter anti-blockage detection device according to claim 1, characterized in that: The sensing device includes a pressure sensing plate and a pressure sensor. The pressure sensor is fixed to the detection end of the moving rod, and the pressure sensing plate is connected to the sensing end of the pressure sensor. The outer edge of the pressure sensing plate contacts the inner wall of the medical catheter. The moving rod is a hollow rod with a wire inside. The wire is electrically connected to the pressure sensor, and the other end of the wire is connected to an external controller.

7. The medical catheter anti-blockage detection device according to claim 1, characterized in that: The sensing device includes an optical probe, and the moving rod is a hollow rod with a wire inside. The wire is electrically connected to the optical probe, and the other end of the wire is connected to an external controller.

Images