Disposable light-proof infusion apparatus

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a disposable light-proof infusion apparatus which comprises a light-proof infusion tube, a bottle stopper puncture device is fixedly mounted at one end of the light-proof infusion tube, and an intravenous injection component is fixedly mounted at the other end of the light-proof infusion tube. According to the disposable light-proof infusion apparatus, liquid medicine can be accumulated between the filter screens and the partition plate when the descending speed of the liquid medicine becomes slow until the liquid medicine overflows the partition plate and enters the adjacent filter screens, the liquid medicine filtered by the adjacent filter screens can drip on the surfaces of the metal sheets, and a clear ticking sound is made, so that medical staff and infusion persons can be reminded of blockage of the filter screens; the rotating rod needs to be rotated, the adjacent filter screens are adjusted to be located under the light-proof infusion tube, so that the situation that the filter screens are blocked for a long time and are difficult to perceive can be avoided, whether the filter screens need to be switched or not can be judged according to sound changes generated when liquid medicine passes through the filter cylinder, and the infusion safety of the light-proof infusion apparatus is further improved.

Description

Technical Field

[0001] This patent relates to the field of medical device technology, specifically a disposable light-proof infusion set. Background Art

[0002] A disposable infusion set is a common medical consumable. After sterilization treatment, a channel is established between the vein and the drug solution for intravenous infusion. It is generally composed of eight parts connected together, including an intravenous needle or injection needle, a needle cap, an infusion hose, a drug solution filter, a flow regulator, a drip pot, a bottle stopper puncture device, and an air filter. Some infusion sets also have injection parts, drug adding ports, etc. The infusion sets used clinically are mainly ordinary non-light-proof infusion sets. However, many drugs have special molecular structures and will absorb light energy under light, causing decomposition, oxidation and other reactions, resulting in changes in the drug components and reducing or losing their due efficacy. The existing technology solves this problem by adding light-shielding agents such as black or brown when manufacturing pipelines and other components.

[0003] The patent with the authorization announcement number CN211561356U discloses a disposable light-proof infusion set, including an infusion hose, one end of which is plugged with a bottle stopper puncture device, the outer surface of which is fixed with an air filter, and the other end of the infusion hose is plugged with a venous needle. Compared with the prior art, the device can switch the filter block according to the use time, avoid drug particles from clogging or accumulating, and affect the drug delivery speed, eliminating safety hazards. However, in the above patent, due to the light-proof property of the infusion tube of the light-proof infusion set itself, it will affect the medical staff's intuitive observation of the liquid in the infusion tube and the filtered drug particles, so the medical staff can only rely on experience or feeling to determine the time to switch the filter block. However, due to different infusion stages, the filtered drug residues are not exactly the same. Therefore, if the drug residues on the filter block have accumulated too much and it is not time to switch the filter block, then blockage will still occur, and it is difficult for medical staff to find it in time. Therefore, the above patent still has certain safety hazards. Utility Model Content

[0004] In view of the shortcomings of the prior art, this patent provides a disposable light-proof infusion set to solve the current problems.

[0005] To achieve the above-mentioned purpose, the present patent provides the following technical solutions: a disposable light-proof infusion device, comprising a light-proof infusion tube, a bottle stopper piercer is fixedly installed on one end of the light-proof infusion tube, an intravenous injection assembly is fixedly installed on the other end of the light-proof infusion tube, a dropper, a flow rate regulator and a filter cylinder are installed in sequence at the middle position of the light-proof infusion tube, the light-proof infusion tube is plugged and installed at the eccentric position of the filter cylinder, an annular cover is rotatably installed at the middle position of the inner side of the filter cylinder, symmetrically distributed partition plates are fixedly installed on the inner side of the annular cover, a rotating rod plugged from top to bottom is rotatably installed at the middle position of the filter cylinder, the ends of multiple partition plates close to each other are fixedly installed on the surface of the rotating rod, a filter screen is installed between two adjacent partition plates, and a metal sheet is fixedly installed at the bottom of the inner side of the filter cylinder and on the side area of ​​the light-proof infusion tube.

[0006] As a preferred technical solution of this patent, the light-proof infusion tube has two sections and the ends of the two sections of the light-proof infusion tube that are close to each other are respectively plugged and installed on the top and bottom of the filter cylinder. The eccentric parts of the top and bottom of the filter cylinder are provided with sockets that match the size of the light-proof infusion tube.

[0007] As a preferred technical solution of this patent, there are multiple filter screens that are symmetrically distributed around the rotating rod. The bottom end of the rotating rod is rotatably connected to the center position of the bottom inner side of the filter cylinder. The top end of the rotating rod passes through the top of the filter cylinder and is fixedly installed with a knob.

[0008] As a preferred technical solution of this patent, the filter screen is of concave design and its edge is fixedly connected to the bottom of the annular cover and the partition plate.

[0009] As a preferred technical solution of this patent, the metal sheet is distributed directly below the filter screen, and no metal sheet is installed in the area directly below the filter screen that is located on the same vertical plane as the socket.

[0010] As a preferred technical solution of this patent, a groove is opened in the middle of the top of the partition plate, and the position and size of the groove are consistent with the light-proof infusion tube inserted into the interior of the filter cylinder.

[0011] As a preferred technical solution of this patent, the intravenous injection assembly includes a needle handle fixedly connected to a light-proof infusion tube, a venous needle that is interconnected is fixedly installed at the port of the needle handle, and a protective sleeve is installed on the outer side of the venous needle.

[0012] As a preferred technical solution of this patent, the surfaces of the dropper, flow rate regulator and filter cylinder are all made of light-proof materials, and the metal sheet is a hollow structure.

[0013] Compared with the prior art, this patent provides a disposable light-proof infusion set, which has the following beneficial effects:

[0014] 1. A disposable light-proof infusion set, in which the medicine liquid will accumulate between the filter screen and the partition plate as the falling speed slows down, until it overflows the partition plate and enters the adjacent filter screen. The medicine liquid filtered by the adjacent filter screen will drip on the surface of the metal sheet, making a crisp ticking sound, which can remind medical staff and infusion recipients that the filter screen is clogged. It is necessary to rotate the rotating rod to adjust the adjacent filter screen to be directly below the light-proof infusion tube, so as to avoid the filter screen from being clogged for a long time and being difficult to detect. The sound change of the medicine liquid passing through the filter cylinder can be used to determine whether the filter screen needs to be switched, thereby further improving the infusion safety of the light-proof infusion set.

[0015] 2. This disposable light-proof infusion set can drive the partition plate and the filter to rotate in the filter cylinder by rotating the knob to replace the filter. The concave design of the filter makes the filtration of the drug solution faster and can accumulate more drug particles. It is suitable for patients who receive long-term infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this patent;

[0017] Figure 2 This is a schematic diagram of the internal structure distribution of the filter cylinder of this patent;

[0018] Figure 3 This is a schematic diagram of the socket distribution structure of this patent;

[0019] Figure 4 This is a schematic diagram of the metal sheet distribution structure of this patent.

[0020] In the figure: 1. light-proof infusion tube; 2. bottle stopper piercer; 3. dropper; 4. flow rate regulator; 5. filter cylinder; 51. rotating rod; 52. annular cover; 53. partition plate; 54. filter screen; 55. groove; 56. socket; 57. metal sheet; 58. knob; 6. needle handle; 7. intravenous needle; 8. protective cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] Embodiment 1

[0023] See also Figure 1-4In the present embodiment: a disposable light-proof infusion device comprises a light-proof infusion tube 1, a bottle stopper piercer 2 is fixedly installed at one end of the light-proof infusion tube 1, an intravenous injection assembly is fixedly installed at the other end of the light-proof infusion tube 1, a dropper 3, a flow rate regulator 4 and a filter cylinder 5 are installed in sequence at the middle position of the light-proof infusion tube 1, the light-proof infusion tube 1 is plugged and installed at the eccentric position of the filter cylinder 5, an annular cover 52 is rotatably installed at the middle position of the inner side of the filter cylinder 5, symmetrically distributed partition plates 53 are fixedly installed on the inner side of the annular cover 52, a rotating rod 51 plugged from top to bottom is rotatably installed at the middle position of the filter cylinder 5, one end of a plurality of partition plates 53 close to each other is fixedly installed on the surface of the rotating rod 51, a filter screen 54 is installed between two adjacent partition plates 53, a metal sheet 57 is fixedly installed at the bottom of the inner side of the filter cylinder 5 and located at the side area of ​​the light-proof infusion tube 1, during the infusion process, the liquid medicine passes through the light-proof infusion tube 1 enters the filter cylinder 5 and drips onto one of the filter screens 54 on the side of the rotating rod 51 for filtration. After the filtration is completed, the liquid medicine directly drips into the light-proof infusion tube 1 at the jack 56 and continues to circulate. After continuous infusion, if too many drug particles accumulate on the filter screen 54, the falling speed of the liquid medicine slows down and accumulates between the filter screen 54 and the partition plate 53 until it overflows the partition plate 53 and reaches the adjacent filter screen 54. The liquid medicine filtered by the adjacent filter screen 54 drips onto the surface of the metal sheet 57, making a crisp ticking sound, which can remind medical staff and infusion users that the filter screen 54 is blocked. It is necessary to rotate the rotating rod 51 to adjust the adjacent filter screen 54 to be located directly below the light-proof infusion tube 1, so as to avoid the filter screen 54 from being blocked for a long time and being difficult to detect. The sound change of the liquid medicine passing through the filter cylinder 5 can be used to determine whether the filter screen 54 needs to be switched, thereby further improving the infusion safety of the light-proof infusion device.

[0024] As a preferred embodiment, the light-proof infusion tube 1 has two sections and the ends of the two sections of the light-proof infusion tube 1 close to each other are respectively plugged and installed on the top and bottom of the filter cylinder 5. The top and bottom eccentric parts of the filter cylinder 5 are provided with plug holes 56 that match the size of the light-proof infusion tube 1. The light-proof infusion tubes 1 plugged and installed on the top and bottom of the filter cylinder 5 are located on the same vertical plane, which facilitates the direct filtering of the medicinal solution and also facilitates the rotation and switching of the filter net 54.

[0025] As a preferred embodiment, there are multiple filter screens 54 that are symmetrically distributed around the rotating rod 51. The bottom end of the rotating rod 51 is rotatably connected to the center position of the bottom inner side of the filter cylinder 5. The top end of the rotating rod 51 passes through the top of the filter cylinder 5 and is fixedly installed with a knob 58. By rotating the knob 58, the partition plate 53 and the filter screen 54 can be driven to rotate in the filter cylinder 5 to achieve the replacement of the filter screen 54.

[0026] Embodiment 2

[0027] See also Figure 1-4 In this embodiment: the filter screen 54 is of concave design and its edge is fixedly connected to the annular cover 52 and the bottom of the partition plate 53. The concave design of the filter screen 54 makes the filtration of the drug solution faster and can accumulate more drug particles, which is suitable for patients who receive long-term infusion.

[0028] As a preferred embodiment, the metal sheet 57 is distributed directly below the filter screen 54, and the metal sheet 57 is not installed in the area directly below the filter screen 54 on the same vertical plane as the jack 56, so that when the filter screen 54 is in normal use, the medicine will not drip onto the metal sheet 57, and when the medicine is blocked and overflows into the adjacent filter screen 54, it will drip onto the metal sheet 57 and then flow into the light-proof infusion tube 1. In this way, the sound of the medicine circulation will change under different conditions of normal filtration and blockage, so that patients and medical staff can promptly discover the blockage of the filter screen 54 and switch the filter screen 54.

[0029] Embodiment 3

[0030] See also Figure 1-4 In this embodiment, a groove 55 is provided at the middle of the top of the partition plate 53. The position and size of the groove 55 match the light-shielding infusion tube 1 inserted into the filter cylinder 5. When the filter screen 54 is switched, the partition plate 53 rotates, so that the light-shielding infusion tube 1 inserted into the filter cylinder 5 directly passes through the groove 55 on the partition plate 53, thereby avoiding the collision between the partition plate 53 and the light-shielding infusion tube 1.

[0031] As a preferred embodiment, the intravenous injection assembly includes a needle handle 6 fixedly connected to a light-proof infusion tube 1, a venous needle 7 that is interconnected is fixedly installed at the port of the needle handle 6, and a protective sleeve 8 is installed on the outer side of the venous needle 7, which can effectively prevent the venous needle 7 from being contaminated.

[0032] As a preferred embodiment, the surfaces of the dropper 3, the flow rate regulator 4 and the filter cylinder 5 are all made of light-proof materials, and the metal sheet 57 is a hollow structure. When the medicine drops onto the surface of the hollow metal sheet 57, the sound it makes will be crisper and louder, which can better remind patients and medical staff.

[0033] The working principle and use process of this patent are as follows: during use, after continuous infusion, when too many drug particles accumulate on the filter 54, the descending speed of the drug liquid slows down and accumulates between the filter 54 and the partition 53, until it overflows the partition 53 and reaches the adjacent filter 54. The drug liquid filtered by the adjacent filter 54 will drip on the surface of the metal sheet 57, making a crisp ticking sound, which can remind medical staff and infusion recipients that the filter 54 is blocked. It is necessary to rotate the rotating rod 51 to adjust the adjacent filter 54 to be directly below the light-proof infusion tube 1, so as to avoid the filter 54 from being blocked for a long time and being difficult to detect. The sound change of the drug liquid passing through the filter cylinder 5 can be used to determine whether the filter 54 needs to be switched, thereby further improving the infusion safety of the light-proof infusion device.

[0034] Finally, it should be noted that the above is only a preferred embodiment of this patent and is not intended to limit this patent. Although this patent is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of this patent shall be included in the protection scope of this patent.

Claims

1. A disposable light-proof infusion set, comprising a light-proof infusion tube (1), characterized in that: A bottle stopper piercer (2) is fixedly mounted on one end of the light-proof infusion tube (1), an intravenous injection assembly is fixedly mounted on the other end of the light-proof infusion tube (1), a dropper (3), a flow rate regulator (4) and a filter cylinder (5) are sequentially mounted in the middle of the light-proof infusion tube (1), the light-proof infusion tube (1) is plugged and mounted at an eccentric position of the filter cylinder (5), an annular cover (52) is rotatably mounted in the middle of the inner side of the filter cylinder (5), symmetrically distributed partition plates (53) are fixedly mounted on the inner side of the annular cover (52), a rotating rod (51) plugged from top to bottom is rotatably mounted in the middle of the filter cylinder (5), the mutually adjacent ends of a plurality of the partition plates (53) are fixedly mounted on the surface of the rotating rod (51), a filter screen (54) is mounted between two adjacent partition plates (53), and a metal sheet (57) is fixedly mounted at the bottom of the inner side of the filter cylinder (5) and located in the side area of ​​the light-proof infusion tube (1).

2. A disposable light-proof infusion set according to claim 1, characterized in that: The light-proof infusion tube (1) has two sections, and the ends of the two sections of the light-proof infusion tube (1) that are close to each other are respectively plugged and installed on the top and bottom of the filter cylinder (5). The top and bottom eccentric parts of the filter cylinder (5) are both provided with plug holes (56) that match the size of the light-proof infusion tube (1).

3. A disposable light-proof infusion set according to claim 1, characterized in that: There are a plurality of filter screens (54) which are symmetrically distributed around the rotating rod (51); the bottom end of the rotating rod (51) is rotatably connected to the center position of the bottom inner side of the filter cylinder (5); the top end of the rotating rod (51) passes through the top of the filter cylinder (5) and is fixedly mounted with a knob (58).

4. A disposable light-proof infusion set according to claim 3, characterized in that: The filter screen (54) is of an inwardly concave design and its edge is fixedly connected to the annular cover (52) and the bottom of the partition plate (53).

5. A disposable light-proof infusion set according to claim 2, characterized in that: The metal sheet (57) is distributed directly below the filter screen (54), and the metal sheet (57) is not installed in the area directly below the filter screen (54) located on the same vertical plane as the insertion hole (56).

6. A disposable light-proof infusion set according to claim 1, characterized in that: A slot (55) is provided in the middle of the top of the partition plate (53), and the position and size of the slot (55) match those of the light-shielding infusion tube (1) inserted into the interior of the filter cylinder (5).

7. A disposable light-proof infusion set according to claim 1, characterized in that: The intravenous injection assembly comprises a needle handle (6) fixedly connected to a light-proof infusion tube (1), a venous needle (7) connected to each other is fixedly installed at the port of the needle handle (6), and a protective sleeve (8) is sleeved and installed on the outer side of the venous needle (7).

8. The disposable light-proof infusion set according to claim 1, characterized in that: The surfaces of the dropper (3), the flow rate regulator (4) and the filter cylinder (5) are all made of light-proof materials, and the metal sheet (57) is a hollow structure.

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