PICC (Peripherally Inserted Central Catheter) guide needle frame structure convenient to fix

Abstract

The utility model discloses a PICC (Peripherally Inserted Central Catheter) guide needle frame structure convenient to fix, which relates to the technical field of medical appliances and comprises a probe, a fixing mechanism is arranged on the outer surface of the probe and comprises a top plate, the top plate is movably connected with the bottom surface of the probe, the bottom surface of the top plate is rotatably connected with a first knob, and a second knob is arranged on the bottom surface of the top plate. The outer surface of the first knob is in threaded connection with a bottom plate, the side face of the bottom plate is fixedly connected with an outer frame, and the interior of the side face of the outer frame is in threaded connection with a second knob. Through the cooperation of the top plate, the first knob and the bottom plate, when the outer frame is placed on the outer surface of a probe, the outer frame can be jacked up by rotating the first knob, the device can be fixed on the outer surface of the probe through the outer frame and the upper fixing plate, the device is prevented from sliding up and down, and the probe is clamped by the left side clamping plate and the right side clamping plate by rotating the second knob. And meanwhile, the needle head clamping device on the top surface can be adjusted to a central position, so that a position where a needle needs to be inserted can be found conveniently.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a PICC guide needle holder structure that is easy to fix. Background Technology

[0002] PICC refers to a peripherally inserted central venous catheter. The catheter is inserted through a peripheral vein in front of the elbow, travels along the blood vessel, and finally reaches the superior vena cava. PICC can be used to directly infuse drugs into a central vein with fast blood flow and large blood volume.

[0003] Patent publication number CN209172448U discloses a novel ultrasound-guided PICC placement guide needle holder. The novel ultrasound-guided PICC placement guide needle holder includes a base plate; a baffle; a fixing structure fixed to the baffle; and a dial, which is disposed on the adjacent side wall of the baffle along with the base plate.

[0004] To address the limitations of traditional guide needle holders, which make it difficult to accurately position the needle insertion angle and result in inaccurate visibility of blood vessels outside the specified range during puncture, often leading to puncture failure, existing technology employs a new type of ultrasound-guided PICC placement guide needle holder that is easy to use and allows for easy adjustment of the needle insertion angle. However, this still results in a shortage of dedicated probes that can accommodate the guide needle holder, sometimes exceeding the available capacity and thus failing to meet the needs of everyone using guide needle holders. Utility Model Content

[0005] The purpose of this invention is to provide a PICC guide pin holder structure that is easy to fix, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A PICC probe holder structure for easy fixation includes a probe. A fixing mechanism is provided on the outer surface of the probe. The fixing mechanism includes a top plate, which is movably connected to the bottom surface of the probe. A knob is rotatably connected to the bottom surface of the top plate. A base plate is threadedly connected to the outer surface of the knob. An outer frame is fixedly connected to the side of the base plate. A knob is threadedly connected to the inner side of the outer frame. One end of the knob penetrates the inner side of the outer frame and is fixedly connected to a side clamp.

[0008] A further improvement of this utility model is that: the side clamp is tightly attached to one side end of the probe, a needle clamping device is fixedly connected to the top of the outer frame, an upper fixing plate is fixedly connected to the top side of the outer frame, and a side clamping device is provided inside the side of the bottom plate.

[0009] A further improvement of the present invention is that the needle clamping device includes a fixing block, the fixing block is fixedly connected to the top surface of the outer frame, a hinge is fixedly connected to one end of the top surface of the fixing block, an angle adjustment plate is fixedly connected to the other end of the hinge, the angle adjustment plate is movably connected to the top surface of the fixing block, and a needle fixing block is slidably connected to the top surface of the angle adjustment plate.

[0010] A further improvement of this utility model is that: an adjustment limiting plate is fixedly connected to the side of the angle adjustment plate, a limiting rod is movably connected inside the adjustment limiting plate, the limiting rod is fixedly connected to the side of the fixing block, and a fixing nut is threadedly connected to the outer surface of the limiting rod, the fixing nut being tightly attached to the side of the adjustment limiting plate.

[0011] A further improvement of the present invention is that the side clamping device includes a screw, the screw is movably connected to the inside of the side of the base plate, a fixing plate is fixedly connected to the side of the screw, a rubber pad is fixedly connected to the side of the fixing plate, the rubber pad is tightly attached to the side of the probe, and a movable plate is movably connected to the other end of the outer surface of the screw.

[0012] A further improvement of this utility model is that: a second rubber pad is fixedly connected to the side of the movable plate, the second rubber pad is tightly attached to the other side of the probe, a fastening nut is threadedly connected to the outer surface of the screw, there are two screws, and the other screw is slidably connected to the inside of the side of the upper fixed plate.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a PICC needle holder structure that is easy to fix. It employs a probe, fixing mechanism, top plate, knob one, bottom plate, outer frame, side clamping plate, knob two, needle clamping device, fixing block, hinge, angle adjustment plate, needle fixing block, adjustment limit plate, limit rod, fixing nut, and upper fixing plate. Through the cooperation of the top plate, knob one, and bottom plate, when the outer frame is placed on the outer surface of the probe, rotating knob one can lift the outer frame. The outer frame and the upper fixing plate can fix the device to the outer surface of the probe, preventing the device from sliding up and down. Rotating knob two... This allows the two side clamps to hold the probe in place, while the needle holder on the top can be adjusted to a centered position for easy needle placement. Once the device is fixed, the fixing nut can be loosened, and the angle adjustment plate can be opened along the hinge to bring the needle holder closer to the point where the probe contacts the skin. The fixing nut can then be tightened to fix the adjustment limit plate, allowing the needle to be inserted into the needle holder for secure fixation. After use, the needle holder can be removed via the bottom slider for easy replacement, improving the device's adaptability.

[0015] 2. This utility model provides a PICC guide pin holder structure that is easy to fix. It adopts a side clamping device, screw, fixed plate, rubber pad one, movable plate, rubber pad two, and fastening nut. The screw slides inside the upper fixed plate and the bottom plate, which drives the fixed plate and rubber pad one to move closer to the side of the probe. By rotating the fastening nut, the movable plate and rubber pad two are pushed closer to the other side of the probe. They cooperate with the fixed plate and rubber pad one to further fix the device, which further improves its stability, prevents movement during use, and improves the adaptability of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the needle clamping device end of this utility model;

[0019] Figure 4 This is a schematic diagram of the side clamping device of this utility model.

[0020] In the diagram: 1. Probe; 2. Fixing mechanism; 21. Top plate; 22. Knob 1; 23. Base plate; 24. Outer frame; 25. Side clamping plate; 26. Knob 2; 27. Needle clamping device; 271. Fixing block; 272. Hinge; 273. Angle adjustment plate; 274. Needle fixing block; 275. Adjustment limit plate; 276. Limiting rod; 277. Fixing nut; 28. Upper fixing plate; 29. ​​Side clamping device; 291. Screw; 292. Fixing plate; 293. Rubber pad 1; 294. Movable plate; 295. Rubber pad 2; 296. Fastening nut. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to embodiments:

[0022] Example 1

[0023] like Figure 1-4 As shown, this utility model provides a PICC guide needle holder structure that is easy to fix, including a probe 1. A fixing mechanism 2 is provided on the outer surface of the probe 1. The fixing mechanism 2 includes a top plate 21, which is movably connected to the bottom surface of the probe 1. A knob 22 is rotatably connected to the bottom surface of the top plate 21. A base plate 23 is threadedly connected to the outer surface of the knob 22. An outer frame 24 is fixedly connected to the side of the base plate 23. A knob 26 is threadedly connected to the inside of the side of the outer frame 24. One end of the knob 26 passes through the inside side of the outer frame 24 and is fixedly connected to a side clamping plate 25. The side clamping plate 25 is tightly attached to one side of the probe 1. A needle clamping device 27 is fixedly connected to the top of the outer frame 24. An upper fixing plate 28 is fixedly connected to the top of the side of the outer frame 24. A side clamping device 29 is provided inside the side of the base plate 23.

[0024] In this embodiment, by cooperating with the top plate 21, the knob 22, and the bottom plate 23, when the outer frame 24 is placed on the outer surface of the probe 1, rotating the knob 22 can lift the outer frame 24. The outer frame 24 and the upper fixing plate 28 can fix the device on the outer surface of the probe 1, preventing the device from sliding up and down. By rotating the knob 26, the left and right side clamping plates 25 can clamp the probe 1, and at the same time, the needle clamping device 27 on the top surface can be adjusted to the centered position, making it convenient to accurately locate the required needle insertion position.

[0025] Example 2

[0026] like Figure 1-4As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the needle clamping device 27 includes a fixing block 271, which is fixedly connected to the top surface of the outer frame 24. A hinge 272 is fixedly connected to one end of the top surface of the fixing block 271, and an angle adjusting plate 273 is fixedly connected to the other end of the hinge 272. The angle adjusting plate 273 is movably connected to the top surface of the fixing block 271, and a needle fixing block 274 is slidably connected to the top surface of the angle adjusting plate 273. An adjusting limiting plate 275 is fixedly connected to the side of the angle adjusting plate 273, and a limiting rod 276 is movably connected inside the adjusting limiting plate 275. The limiting rod 276 is fixedly connected to the side of the fixing block 271, and a fixing nut 277 is threadedly connected to the outer surface of the limiting rod 276. The fixing nut 277 is tightly attached to the side of the adjusting limiting plate 275.

[0027] In this embodiment, once the device is fixed, the fixing nut 277 can be loosened, and the angle adjustment plate 273 can be opened along the hinge 272, causing the needle fixing block 274 to move closer to the position where the probe 1 contacts the skin. By tightening the fixing nut 277, the adjustment limit plate 275 is fixed, and the needle is inserted into the needle fixing block 274 for easy needle fixing. After use, the needle fixing block 274 can be removed through the bottom slider for easy replacement with a new needle fixing block 274.

[0028] Example 3

[0029] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the side clamping device 29 includes a screw 291, which is movably connected to the inside of the side of the base plate 23. A fixing plate 292 is fixedly connected to the side of the screw 291. A rubber pad 293 is fixedly connected to the side of the fixing plate 292. The rubber pad 293 is tightly attached to the side of the probe 1. A movable plate 294 is movably connected to the other end of the outer surface of the screw 291. A rubber pad 295 is fixedly connected to the side of the movable plate 294. The rubber pad 295 is tightly attached to the other side of the probe 1. A fastening nut 296 is threadedly connected to the outer surface of the screw 291. There are two screws 291, and the other screw 291 is slidably connected to the inside of the side of the upper fixing plate 28.

[0030] In this embodiment, the screw 291 slides inside the upper fixing plate 28 and the bottom plate 23, driving the fixing plate 292 and the first rubber pad 293 closer to the side of the probe 1. The fastening nut 296 is rotated to push the movable plate 294 and the second rubber pad 295 closer to the other side of the probe 1. Together with the fixing plate 292 and the first rubber pad 293, the device is further fixed, which further improves its stability and prevents movement during use.

[0031] The working principle of this easy-to-fix PICC guide pin holder structure will be explained in detail below.

[0032] like Figure 1-4 As shown, by loosening all components of the fixing mechanism 2, the outer frame 24 is placed on the outer surface of the probe 1. Rotating knob 22 can fix the outer frame 24 and the upper fixing plate 28 to the outer surface of the probe 1, preventing the device from shaking up and down. By rotating knob 26, the left and right side clamping plates 25 clamp the probe 1, and the needle clamping device 27 on the top surface can be adjusted to the center position. The screw 291 slides inside the upper fixing plate 28 and the bottom plate 23, driving the fixing plate 292 and the rubber pad 293 closer to the side of the probe 1. Rotating the fastening nut 296 pushes the movable plate 294 and the rubber pad 293 closer to the side of the probe 1. Pad 295 is located on the other side of probe 1. It works with fixing plate 292 and rubber pad 293 to further fix the device and improve its stability. After the device is fixed, fixing nut 277 can be loosened and angle adjustment plate 273 can be opened along hinge 272 to bring needle fixing block 274 closer to the position where probe 1 contacts the skin. By tightening fixing nut 277, adjustment limit plate 275 is fixed. Needle can be inserted into needle fixing block 274 for easy needle fixation. After use, needle fixing block 274 can be removed through bottom slider for easy replacement with a new needle fixing block 274.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A PICC probe holder structure for easy fixation, comprising a probe (1), characterized in that: The outer surface of the probe (1) is provided with a fixing mechanism (2); The fixing mechanism (2) includes a top plate (21), which is movably connected to the bottom surface of the probe (1). A knob (22) is rotatably connected to the bottom surface of the top plate (21). A base plate (23) is threadedly connected to the outer surface of the knob (22). An outer frame (24) is fixedly connected to the side of the base plate (23). A knob (26) is threadedly connected to the inside of the side of the outer frame (24). One end of the knob (26) passes through the inside side of the outer frame (24) and is fixedly connected to a side clamp (25). The side clamp (25) is tightly attached to one side of the probe (1). A needle clamping device (27) is fixedly connected to the top of the outer frame (24). An upper fixing plate (28) is fixedly connected to the top of the side of the outer frame (24). A side clamping device (29) is provided inside the side of the base plate (23). The needle clamping device (27) includes a fixing block (271), which is fixedly connected to the top surface of the outer frame (24). A hinge (272) is fixedly connected to one end of the top surface of the fixing block (271), and an angle adjustment plate (273) is fixedly connected to the other end of the hinge (272). The angle adjustment plate (273) is movably connected to the top surface of the fixing block (271), and a needle fixing block (274) is slidably connected to the top surface of the angle adjustment plate (273). An adjustment limiting plate (275) is fixedly connected to the side of the angle adjustment plate (273). A limiting rod (276) is movably connected inside the adjustment limiting plate (275). The limiting rod (276) is fixedly connected to the side of the fixing block (271), and a fixing nut (277) is threadedly connected to the outer surface of the limiting rod (276). The fixing nut (277) is tightly attached to the side of the adjustment limiting plate (275).

2. The PICC guide pin holder structure for easy fixation according to claim 1, characterized in that: The side clamping device (29) includes a screw (291), which is movably connected to the inside of the side of the base plate (23). A fixing plate (292) is fixedly connected to the side of the screw (291), and a rubber pad (293) is fixedly connected to the side of the fixing plate (292). The rubber pad (293) is in close contact with the side of the probe (1). A movable plate (294) is movably connected to the other end of the outer surface of the screw (291).

3. The PICC guide pin holder structure for easy fixation according to claim 2, characterized in that: The side of the movable plate (294) is fixedly connected with a second rubber pad (295), which is in close contact with the other side of the probe (1). The outer surface of the screw (291) is threaded with a fastening nut (296). There are two screws (291), and the other screw (291) is slidably connected to the inside of the side of the upper fixed plate (28).

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