Infusion set with smooth infusion

Abstract

The application discloses a transfusion device with smooth transfusion, which comprises a liquid outlet bellows and a high-precision drop speed regulator. The liquid outlet end of the transfusion hose is provided with the liquid outlet bellows. The wave crest and the wave trough of the liquid outlet bellows are respectively provided with a first embedded annular reinforcing structure and a second embedded annular reinforcing structure. The transfusion hose is provided with the high-precision drop speed regulator. The high-precision drop speed regulator comprises a drop speed scale, an adjusting roller, a follow-up connecting piece and a follow-up pointer. The high-precision drop speed regulator is provided with the drop speed scale and the follow-up pointer which are arranged along the moving direction of the adjusting roller. The follow-up pointer is adapted to the drop speed scale. The follow-up connecting piece is connected between the follow-up pointer and the adjusting roller. The liquid outlet bellows is arranged at the end of the transfusion hose, so that the end of the transfusion hose will not be blocked due to bending, and the transfusion is not hindered. The adjusting precision of the drop speed regulator is improved, the medical staff can conveniently adjust, and the transfusion of the patient is facilitated.

Description

[Technical Field]

[0001] This invention relates to the technical field of infusion sets with smooth infusion flow, and particularly to the technical field of infusion sets with smooth infusion flow. [Background Technology]

[0002] When patients receive intravenous infusions using disposable infusion sets, the infusion tubing near the vein needle can easily bend due to the patient's movements. Once the tubing is bent, it will obstruct the flow of saline solution, causing the saline solution to stop dripping, which is not conducive to the patient's infusion.

[0003] To address the aforementioned issues, application number 201420450087.8 discloses an infusion set, comprising an infusion tubing. The infusion tubing has a stopper puncturer and an infusion needle at each end. Along the direction from the stopper puncturer to the infusion needle, the infusion tubing is sequentially provided with a drip chamber, a flow regulator, and a drug filter. A return tube is located between the drug filter and the flow regulator. The set is characterized by: several fixing posts on the infusion tubing between the flow regulator and the drip chamber; plastic corrugated tubes connecting the fixing posts; a tubing through-hole on each fixing post; the infusion tubing passing through both the tubing through-hole and the corrugated tube; a fixing plug on the side of each fixing post; and a fixing slot on the other side of each fixing post opposite the fixing plug, the fixing plug being made of rubber.

[0004] When the infusion tubing of the aforementioned 201420450087.8 is in operation, if the tubing is too long, the fixing plug on one fixing post is connected to the fixing slot on the other fixing posts to fix the excess tubing together. This effectively prevents the tubing from being too long and causing the patient to trip over it. Furthermore, the accompanying person only needs to lift the IV bottle with one hand and hold the fixing post with the other hand, which effectively prevents the accompanying person from holding the tubing and causing blockage, thus ensuring smooth infusion. In addition, the corrugated tube provides a certain curvature for the bent section of the tubing when it is bent, effectively preventing the tubing from bending and causing blockage, thus ensuring smooth infusion.

[0005] Although 201420450087.8 possesses the aforementioned advantages, it still has some drawbacks. In actual operation, the most easily bent part is actually the infusion tubing at the infusion end, which is close to the wrist. Sometimes, hand movements or angle issues when using medical tape to secure it can inevitably cause the infusion tubing to bend. However, referring to the attached diagram of the infusion set, the corrugated tube is located in the middle of the infusion tubing. During normal use, after the stopper puncture needle pierces the infusion bottle or bag, the upper and middle sections of the infusion tubing naturally droop under gravity, and generally do not bend. Therefore, the aforementioned corrugated tube of the infusion tubing... The placement of the tube is somewhat impractical. Although the corrugated tube can be easily bent, it cannot guarantee that the infusion tubing at the bend will not become completely blocked. If the corrugated tube is stretched too long before bending, the corrugated structure used for stretching will lose its intended tensile effect, which can easily lead to the same situation as conventional infusion tubing bending and blockage. Secondly, the drip rate regulators of current infusion sets are often simple in structure and have poor adjustment precision. They are often adjusted by the patient or medical staff based on their own judgment, resulting in poor adjustment accuracy. For some medications with specific infusion rate requirements, it is sometimes impossible to adjust the drip rate to suit the patient immediately. Medical staff also rely on their own judgment to estimate the rate, which can easily lead to the infusion being too fast or too slow.

[0006] In summary, in order to solve the problems of easy bending and blockage at the end of the infusion tubing and poor adjustment accuracy of the drip rate regulator in current infusion sets, it is necessary to propose an infusion set with smooth infusion. [Summary of the Invention]

[0007] The purpose of this invention is to solve the problems in the prior art and to propose an infusion set that allows for smooth infusion, preventing the infusion tubing from being blocked by bends, and improving the adjustment accuracy of the drip rate regulator, making it easier for medical staff to adjust and facilitating infusion for patients.

[0008] To achieve the above objectives, this invention proposes an infusion set for smooth infusion, comprising an infusion tubing, a stopper puncture needle, a drip chamber, and an intravenous needle, and including an outlet corrugated tube and a high-precision drip rate regulator. The outlet end of the infusion tubing is provided with an outlet corrugated tube, and the crest and trough of the outlet corrugated tube are respectively provided with embedded first annular reinforcing structures and second annular reinforcing structures. The infusion tubing is provided with a high-precision drip rate regulator, which includes a drip rate scale, an adjusting roller, a follower connector, and a follower pointer. The high-precision drip rate regulator is provided with a drip rate scale and a follower pointer arranged along the moving direction of the adjusting roller. The follower pointer is adapted to the drip rate scale, and a follower connector is connected between the follower pointer and the adjusting roller.

[0009] Preferably, the minimum inner diameter of the outlet corrugated pipe is equal to or greater than the inner diameter of the infusion hose.

[0010] Preferably, the outlet end of the corrugated tube is connected to an intravenous needle.

[0011] Preferably, both the first and second annular reinforcing structures are coaxial with the liquid outlet bellows, and the first and second annular reinforcing structures are non-deformable annular structures such as plastic rings.

[0012] Preferably, both the first annular reinforcing structure and the second annular reinforcing structure are located close to the outer surface of the liquid outlet bellows.

[0013] Preferably, the high-precision drip rate regulator further includes a U-shaped body, connecting beams, and linear grooves. The U-shaped body includes an inclined base plate and vertical plates located at the front and rear ends of the base plate. Two connecting beams are connected between the upper opposite end faces of the two vertical plates. The two connecting beams are respectively located at the left and right ends of the vertical plates. Linear grooves are provided on the opposite end faces of the two vertical plates. The linear grooves are located between the two connecting beams. An adjusting roller is provided between the two vertical plates. The adjusting roller includes a rotating shaft, an inner turntable, an outer tube, and an anti-slip layer. A coaxial rotating shaft is provided in the middle of the inner turntable. The front and rear ends of the rotating shaft extend into the corresponding linear grooves. A coaxial outer tube is provided on the outer ring wall of the inner turntable. An anti-slip layer is provided on the outer wall of the outer tube.

[0014] Preferably, an infusion hose channel is formed between the adjusting roller and the lower part of the connecting beam and the base plate.

[0015] Preferably, the upper outer surface of the vertical plate is provided with a drip rate scale parallel to the linear slide groove, and the reading of the drip rate scale decreases from the low end to the high end of the bottom plate.

[0016] Preferably, the follower connector includes a sleeve and a connector. A rotatable sleeve is fitted on the rotating shaft, and a connector is connected between the sleeve and the follower pointer. The connector is located inside the outer tube, and the follower pointer is located outside the outer tube.

[0017] Preferably, the surface of the drip rate scale is provided with a limiting groove along its length, and the follower pointer is provided with a limiting ball that matches the limiting groove.

[0018] The beneficial effects of this invention are as follows: By incorporating a corrugated outlet tube at the end of the infusion tubing, the invention prevents the tubing from becoming blocked due to bends, thus improving the accuracy of the drip rate regulator and facilitating adjustments by medical personnel, thereby benefiting patients during infusion. Furthermore, by providing embedded first and second annular reinforcing structures at the crests and troughs of the corrugated outlet tube, the strength of the corrugated outlet tube is enhanced, thereby increasing its overall strength. By ensuring the minimum inner diameter of the corrugated outlet tube is equal to or greater than the inner diameter of the infusion tubing, the invention prevents the inner diameter from being too small, which could negatively impact the infusion tubing's flow. By connecting the infusion needle to the outlet end of the corrugated outlet tube, effectively making the end of the infusion tubing entirely corrugated, the invention prevents the tubing from becoming blocked due to bends. Finally, by incorporating a high-precision drip rate regulator with readable readings, and through the coordination of a follow-up pointer and a drip rate scale, medical personnel can accurately monitor the movement distance of the adjustment roller when pushing it, avoiding multiple adjustments and improving the efficiency of the drip rate regulator.

[0019] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0020] Figure 1 This is a schematic diagram of the structure of the infusion set with smooth infusion of the present invention;

[0021] Figure 2 This is a front cross-sectional view of the outlet bellows of the infusion set of the present invention, which provides smooth infusion.

[0022] Figure 3 This is a front cross-sectional view of the high-precision drip rate regulator of the infusion set for smooth infusion according to the present invention;

[0023] Figure 4 This is a right-side cross-sectional view of the high-precision drip rate regulator of the infusion set for smooth infusion according to the present invention.

Detailed Implementation Methods

[0024] See Figure 1 , Figure 2 , Figure 3 and Figure 4The present invention provides a smooth infusion set, comprising an infusion tubing 1, wherein the infusion tubing 1 is provided with a stopper puncture needle 11, a drip chamber 12, and an intravenous needle 3, and includes an outlet corrugated tube 2 and a high-precision drip rate regulator 4. The outlet end of the infusion tubing 1 is provided with an outlet corrugated tube 2, and the crest 21 and trough 22 of the outlet corrugated tube 2 are respectively provided with an embedded first annular reinforcing structure 210 and a second annular reinforcing structure 220. The infusion tubing 1 is provided with a high-precision drip rate regulator 4, which includes a drip rate scale 43, an adjusting roller 44, a follower connector 45, and a follower pointer 47. The high-precision drip rate regulator 4 is provided with a drip rate scale 43 and a follower pointer 47 arranged along the moving direction of the adjusting roller 44. The follower pointer 47 is adapted to the drip rate scale 43, and the follower connector 45 connects the follower pointer 47 and the adjusting roller 44.

[0025] The minimum inner diameter of the outlet corrugated pipe 2 is equal to or greater than the inner diameter of the infusion hose 1.

[0026] The outlet end of the corrugated tube 2 is connected to the intravenous needle 3.

[0027] The first annular reinforcing structure 210 and the second annular reinforcing structure 220 are both coaxial with the liquid outlet bellows 2. The first annular reinforcing structure 210 and the second annular reinforcing structure 220 are circular structures that are not easily deformed, such as plastic rings.

[0028] The first annular reinforcing structure 210 and the second annular reinforcing structure 220 are both located close to the outer surface of the liquid outlet bellows 2.

[0029] The high-precision drip rate regulator 4 further includes a U-shaped body 40, connecting beams 41, and linear grooves 42. The U-shaped body 40 includes an inclined base plate 401 and vertical plates 402 located at the front and rear ends of the base plate 401. Two connecting beams 41 are connected between the upper opposite end faces of the two vertical plates 402. The two connecting beams 41 are respectively located at the left and right ends of the vertical plates 402. The opposite end faces of the two vertical plates 402 are provided with linear grooves 42, which are located between the two connecting beams 41. An adjusting roller 44 is provided between the two vertical plates 402. The adjusting roller 44 includes a rotating shaft 440, an inner turntable 441, an outer tube 442, and an anti-slip layer 443. The inner turntable 441 has a coaxial rotating shaft 440 in the middle. The front and rear ends of the rotating shaft 440 extend into the corresponding linear grooves 42. The outer ring wall of the inner turntable 441 has a coaxial outer tube 442, and the outer tube wall of the outer tube 442 has an anti-slip layer 443.

[0030] The adjusting roller 44 and the lower part of the connecting beam 41 form an infusion hose channel between the bottom plate 401 and the base plate 401.

[0031] The upper outer surface of the vertical plate 402 is provided with a drip rate scale 43 parallel to the linear slide groove 42. The reading of the drip rate scale 43 decreases from the low end to the high end of the bottom plate 401.

[0032] The follower connector 45 includes a sleeve 451 and a connector 452. The rotatable sleeve 451 is sleeved on the rotating shaft 440. The connector 452 is connected between the sleeve 451 and the follower pointer 47. The connector 452 is located inside the outer tube 442, and the follower pointer 47 is located outside the outer tube 442.

[0033] The drip rate scale 43 has a limiting groove 431 on its surface along its length, and the follower pointer 47 has a limiting ball 46 that matches the limiting groove 431.

[0034] Working process of this invention:

[0035] In the operation of this invention's smooth-flowing infusion set, the outlet bellows 2 allows the outlet end of the infusion tubing 1 to bend arbitrarily without clogging. The first annular reinforcing structure 210 and the second annular reinforcing structure 220 further enhance the strength of the outlet bellows 2, enabling it to maintain its arbitrarily bending performance without clogging even under high external force. When the high-precision drip rate regulator 4 is working, the follow-up pointer 47 moves synchronously with the adjusting roller 44 as the adjusting roller 44 moves. The follow-up pointer 47 is adapted to the drip rate scale 43. Through the cooperation of the follow-up pointer 47 and the drip rate scale 43, medical staff can accurately understand the moving distance of the adjusting roller 44 when pushing it, avoiding multiple adjustments and improving the adjustment efficiency of the drip rate regulator.

[0036] This invention, by incorporating an outlet corrugated tube 2 at the end of the infusion tubing 1, prevents the end of the tubing 1 from obstructing the infusion due to bending or blockage, and improves the adjustment accuracy of the drip rate regulator, facilitating adjustment by medical staff and benefiting patients during infusion. Furthermore, by embedding a first annular reinforcing structure 210 and a second annular reinforcing structure 220 at the crests 21 and troughs 22 of the outlet corrugated tube 2, the strength of the crests 21 and troughs 22 is enhanced, thereby increasing the overall strength of the outlet corrugated tube 2. Finally, by ensuring that the minimum inner diameter of the outlet corrugated tube 2 is equal to or larger than that of the infusion tubing... The inner diameter of the tubing 1 is designed to prevent the inner diameter of the outlet corrugated tube 2 from being too small, which would affect the fluid output of the infusion tubing 1. By setting the outlet end of the outlet corrugated tube 2 to connect to the intravenous needle 3, the end of the infusion tubing 1 is completely corrugated, so the end of the infusion tubing 1 will not be blocked by bending and clogging, thus preventing obstruction of the infusion. By setting a high-precision drip rate regulator 4 with readable readings, and through the cooperation of the follow-up pointer 47 and the drip rate scale 43, medical staff can accurately understand the movement distance of the adjustment roller 44 when pushing the adjustment roller 44, avoiding multiple adjustments and improving the adjustment efficiency of the drip rate regulator.

[0037] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. An infusion set with smooth infusion flow, comprising an infusion tubing (1), wherein the infusion tubing (1) is provided with a stopper puncture needle (11), a drip chamber (12), and an intravenous needle (3), characterized in that: The infusion tubing (1) has an outlet corrugated tube (2) at its outlet end. The crest (21) and trough (22) of the outlet corrugated tube (2) are respectively provided with an embedded first annular reinforcing structure (210) and a second annular reinforcing structure (220). The infusion tubing (1) is provided with a high-precision drip rate regulator (4). The high-precision drip rate regulator (4) includes a drip rate scale (43), an adjusting roller (44), a follower connector (45), and a follower pointer (47). The high-precision drip rate regulator (4) is provided with a drip rate scale (43) and a follower pointer (47) arranged along the moving direction of the adjusting roller (44). The follower pointer (47) is adapted to the drip rate scale (43), and the follower pointer (47) is aligned with the drip rate scale (43). A follower connector (45) is connected between the adjusting rollers (44); the high-precision drip rate regulator (4) also includes a U-shaped body (40), a connecting beam (41), and a linear slide groove (42). The U-shaped body (40) includes an inclined base plate (401) and vertical plates (402) located at the front and rear ends of the base plate (401). Two connecting beams (41) are connected between the opposite upper end faces of the two vertical plates (402). The two connecting beams (41) are respectively located at the left and right ends of the vertical plates (402). A linear slide groove (42) is provided on the opposite end faces of the two vertical plates (402). The linear slide groove (42) is located between the two connecting beams (41). An adjusting roller (44) is provided between the two vertical plates (402). The wheel (44) includes a rotating shaft (440), an inner rotating disk (441), an outer tube (442), and an anti-slip layer (443). The inner rotating disk (441) has a coaxial rotating shaft (440) in the middle. The front and rear ends of the rotating shaft (440) extend into the corresponding straight grooves (42). The outer ring wall of the inner rotating disk (441) has a coaxial outer tube (442), and the outer wall of the outer tube (442) has an anti-slip layer (443). An infusion hose channel is formed between the lower part of the adjusting roller (44) and the connecting beam (41) and the bottom plate (401). An infusion hose channel is formed between the lower part of the adjusting roller (44) and the connecting beam (41) and the bottom plate (401). The upper outer surface of the vertical plate (402) has a straight groove (440). 42) The reading of the parallel drip rate scale (43) decreases from the low end to the high end of the base plate (401); the follower connector (45) includes a sleeve (451) and a connector (452). The rotating shaft (440) is fitted with a rotatable sleeve (451). The sleeve (451) and the follower pointer (47) are connected by a connector (452). The connector (452) is located inside the outer tube (442), and the follower pointer (47) is located outside the outer tube (442); the surface of the drip rate scale (43) is provided with a limiting groove (431) arranged along its length direction, and the follower pointer (47) is provided with a limiting ball (46) that is adapted to the limiting groove (431).

2. The infusion set with smooth infusion as described in claim 1, characterized in that: The minimum inner diameter of the outlet corrugated pipe (2) is equal to or greater than the inner diameter of the infusion hose (1).

3. The infusion set with smooth infusion as described in claim 1, characterized in that: The outlet end of the corrugated tube (2) is connected to the intravenous needle (3).

4. The infusion set with smooth infusion as described in claim 1, characterized in that: The first annular reinforcing structure (210) and the second annular reinforcing structure (220) are both coaxial with the liquid outlet bellows (2). The first annular reinforcing structure (210) and the second annular reinforcing structure (220) are circular structures that are not easily deformed.

5. The infusion set with smooth infusion as described in claim 4, characterized in that: The first annular reinforcing structure (210) and the second annular reinforcing structure (220) are both located close to the outer surface of the liquid outlet bellows (2).

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