Infusion apparatus with filtering and dosing structure

Abstract

The utility model relates to the technical field of infusion apparatuses, in particular to an infusion apparatus with a filtering and dosing structure, which comprises an upper infusion tube, a filter cartridge, a lower infusion tube, a coarse filter layer, a fine filter layer, an ultrafiltration layer and a flushing component, the filter cartridge is connected with the upper infusion tube, the lower infusion tube is connected with the filter cartridge, the coarse filter layer is connected with the filter cartridge, the fine filter layer is connected with the coarse filter layer, and the ultrafiltration layer is connected with the flushing component. The ultra-filtration layer is connected with the fine filtration layer, the flushing component is arranged on the filter cartridge, the coarse filtration layer is used for intercepting large-particle impurities, the fine filtration layer is used for further filtering small particles, and finally, the ultra-filtration layer is made of a nano-scale filtration material, so that the purity of a liquid medicine solution is ensured; the filtered liquid medicine is input into a human body through the lower infusion tube and the connecting needle head, so that the influence of impurities in the liquid medicine on the human body is avoided.

Description

Technical Field

[0001] This utility model relates to the field of infusion set technology, and in particular to an infusion set with a filter and drug delivery structure. Background Technology

[0002] Traditional drug treatment is generally administered orally. Oral medications need to go through the digestion and absorption process in the gastrointestinal tract, and are affected by various factors such as gastric acid, digestive enzymes, and the absorption efficiency of the intestinal mucosa.

[0003] Currently, patients are usually treated by intravenous infusion. Intravenous infusion bypasses these steps, allowing the drug to be rapidly distributed to tissues and organs throughout the body to exert its effect, thus achieving the goal of rapid onset of action and precise drug delivery.

[0004] However, some medications may contain particulate impurities during infusion. These particulate impurities are a significant factor leading to infusion reactions. When these particles enter the bloodstream, they accumulate in the blood vessels, stimulating vascular endothelial cells and thus causing certain effects on the body. Utility Model Content

[0005] The purpose of this invention is to provide an infusion set with a filter and drug delivery structure, which aims to solve the problem that some drug solutions may contain particulate impurities during administration. Particulate impurities are an important factor leading to infusion reactions. When particles enter the human bloodstream, they accumulate in the blood vessels, irritate vascular endothelial cells, and thus have a certain impact on the human body.

[0006] To achieve the above objectives, this utility model provides an infusion set with a filtration and drug delivery structure, comprising an upper infusion tube, a filter cylinder, a lower infusion tube, a coarse filter layer, a fine filter layer, an ultrafiltration layer, and a flushing component. The filter cylinder is connected to the upper infusion tube and located on one side of the upper infusion tube. The lower infusion tube is connected to the filter cylinder and located on the side of the filter cylinder away from the upper infusion tube. The coarse filter layer is connected to the filter cylinder and located on one side of the filter cylinder. The fine filter layer is connected to the coarse filter layer and located on one side of the coarse filter layer. The ultrafiltration layer is connected to the fine filter layer and located on the side of the fine filter layer away from the coarse filter layer. The flushing component is disposed on the filter cylinder.

[0007] The flushing component includes a flushing tube and a rubber sheet. The flushing tube is connected to the filter cylinder and is located on the side of the filter cylinder away from the upper infusion tube. The rubber sheet is connected to the flushing tube and is located on one side of the flushing tube.

[0008] The flushing component further includes a rubber plug, which is disposed on the flushing pipe and located on one side of the flushing pipe.

[0009] The infusion set with a filter-based drug delivery system also includes a flow rate controller, which is mounted on the lower infusion tube.

[0010] The infusion set with a filter and drug delivery structure also includes a drug delivery tube, which is connected to the upper infusion tube and located on one side of the upper infusion tube.

[0011] This utility model discloses an infusion set with a filter-based drug delivery structure. The medication is introduced into the filter cartridge via the upper infusion tube and sequentially passes through the coarse filtration layer, the fine filtration layer, and the ultrafiltration layer within the filter cartridge. The coarse filtration layer intercepts large particles, the fine filtration layer further filters smaller particles, and finally, the ultrafiltration layer uses nanoscale filter material to ensure the purity of the medication solution. The filtered medication is then delivered to the human body via the lower infusion tube and connecting needle, thus preventing impurities in the medication from affecting the body. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the structure of the infusion set with a filter and drug delivery structure according to the first embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the filter cartridge according to the first embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the flushing component according to the first embodiment of the present invention.

[0016] In the diagram: 101-Upper infusion tube, 102-Filter cylinder, 103-Lower infusion tube, 104-Coarse filter layer, 105-Fine filter layer, 106-Ultrafiltration layer, 107-Flow rate controller, 108-Dosing tube, 109-Flushing tube, 110-Rubber sheet, 111-Rubber plug. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The first embodiment of this application is as follows:

[0019] Please see Figures 1 to 3 ,in Figure 1 This is a schematic diagram of the structure of the infusion set with a filter and drug delivery structure according to the first embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of the filter cartridge according to the first embodiment of this utility model. Figure 3 This is a schematic diagram of the flushing component according to the first embodiment of the present invention.

[0020] This utility model provides an infusion set with a filtering and drug delivery structure, including an upper infusion tube 101, a filter cylinder 102, a lower infusion tube 103, a coarse filter layer 104, a fine filter layer 105, an ultrafiltration layer 106, a flushing component, a flow rate controller 107, and a drug delivery tube 108. The flushing component includes a flushing tube 109, a rubber sheet 110, and a rubber plug 111. This solution addresses the issue of particulate impurities present in some medications during infusion. Particulate impurities are a significant factor contributing to infusion reactions. When these particles enter the bloodstream, they accumulate in blood vessels, irritating vascular endothelial cells and causing adverse effects. Therefore, this solution can be used in situations requiring the filtration of impurities from medications.

[0021] In this embodiment, the upper infusion tube 101 is connected to the upper left of the filter cylinder 102, and the lower infusion tube 103 is connected to the lower right of the filter cylinder 102. The upper infusion tube 101 and the lower infusion tube 103 are both connected to the filter cylinder 102 through standard interfaces. The medicine in the medicine bag can be injected into the human body for treatment through the upper infusion tube 101 and the lower infusion tube 103.

[0022] The filter cartridge 102 is connected to the upper infusion tube 101 and located on one side of the upper infusion tube 101. The lower infusion tube 103 is connected to the filter cartridge 102 and located on the side of the filter cartridge 102 away from the upper infusion tube 101. The coarse filtration layer 104 is connected to the filter cartridge 102 and located on one side of the filter cartridge 102. The fine filtration layer 105 is connected to the coarse filtration layer 104 and located on one side of the coarse filtration layer 104. The ultrafiltration layer 106 is connected to the fine filtration layer 105 and located on the fine filtration layer 105 away from the coarse filtration layer. On one side of 104, the flushing component is disposed on the filter cartridge 102. The upper infusion tube 101 is connected to the upper left of the filter cartridge 102, and the lower infusion tube 103 is connected to the lower right of the filter cartridge 102. Both the upper infusion tube 101 and the lower infusion tube 103 are connected to the filter cartridge 102 through standard interfaces. Medical personnel can easily disassemble the filter and drug delivery structure for cleaning, inspection, or replacement. The coarse filtration layer 104 is connected to the filter cartridge 102, the fine filtration layer 105 is connected to the coarse filtration layer 104, and the ultrafiltration layer 106 is connected to the fine filtration layer. The filter cartridge 102 is connected in a series of layers. The coarse filter layer 104 is mainly used to intercept large particulate impurities; the fine filter layer 105 further filters smaller particles; and the ultrafiltration layer 106 uses nanoscale filter materials to ensure the purity of the drug solution. The layers are connected by a special adhesive to prevent separation. The rinsing component is located on the filter cartridge 102. A cleaning solution is injected through this component, and the counter-current flow of the cleaning solution sequentially rinses the ultrafiltration layer 106, the fine filter layer 105, and the coarse filter layer 104, thereby removing particles and impurities attached to the filter materials and achieving a smooth flow. The medication is introduced into the filter cartridge 102 through the upper infusion tube 101, and then sequentially passes through the coarse filtration layer 104, the fine filtration layer 105, and the ultrafiltration layer 106 in the filter cartridge 102. The coarse filtration layer 104 is used to intercept large particles of impurities, the fine filtration layer 105 further filters out smaller particles, and finally the ultrafiltration layer 106 uses nanoscale filter material to ensure the purity of the medication solution. The filtered medication solution is then introduced into the human body through the lower infusion tube 103 and the connecting needle, thereby avoiding the impact of impurities in the medication solution on the human body.

[0023] Secondly, the flushing tube 109 is connected to the filter cylinder 102 and is located on the side of the filter cylinder 102 away from the upper infusion tube 101; the rubber sheet 110 is connected to the flushing tube 109 and is located on one side of the flushing tube 109. The flushing tube 109 is integrally connected and fixed to the filter cylinder 102 and communicates with the cavity through which the medicine flows after filtration in the filter cylinder 102. The rubber sheet 110 is adhered to the flushing tube 109. The syringe needle for drawing cleaning fluid (such as physiological saline) is inserted into the rubber sheet 110 of the flushing tube 109. By periodically injecting cleaning fluid into the flushing tube 109, the reverse flow of the cleaning fluid is used to sequentially flush the ultrafiltration layer 106, the fine filtration layer 105, and the coarse filtration layer 104, thereby removing particles and impurities attached to the filter material.

[0024] Meanwhile, the rubber plug 111 is disposed on the flushing pipe 109 and located on one side of the flushing pipe 109. The rubber plug 111 is designed to engage with the flushing port of the flushing pipe 109, thereby better sealing the flushing pipe 109 when it is not in use.

[0025] In addition, the flow rate controller 107 is disposed on the lower infusion tube 103. The flow rate controller 107 consists of a slider with rollers and an infusion tube slot, which is existing technology and will not be described in detail here. By sliding the slider of the flow rate controller 107, the degree of compression of the infusion tube by the rollers of the flow rate controller 107 is changed, thereby adjusting the inner diameter of the lower infusion tube 103 and thus controlling the flow rate of the medicine in the lower infusion tube 103.

[0026] Finally, the drug delivery tube 108 is connected to the upper infusion tube 101 and located on one side of the upper infusion tube 101. The drug delivery tube 108 is integrally connected and fixed to the upper infusion tube 101 and communicates with the upper infusion tube 101. The drug delivery tube 108 has a drug delivery port, which is generally sealed with rubber or other materials to ensure good sealing and prevent drug leakage. At the same time, it is easy for the syringe needle to be inserted. The syringe needle with the drug solution drawn is inserted into the rubber sealing part of the drug delivery port, and the syringe piston is slowly pushed to inject the drug solution into the upper infusion tube 101, where it mixes with the flowing drug solution. As the infusion proceeds, the added drug solution will be injected into the patient's body along with the infusion.

[0027] When using the infusion set with a filter-based drug delivery structure according to this embodiment, the drug solution can be introduced into the filter cartridge 102 through the upper infusion tube 101, and then sequentially pass through the coarse filter layer 104, the fine filter layer 105, and the ultrafiltration layer 106 in the filter cartridge 102. The coarse filter layer 104 is used to intercept large particulate impurities, the fine filter layer 105 further filters smaller particles, and finally the ultrafiltration layer 106 uses nano-scale filter material to ensure the purity of the drug solution. The filtered drug solution is then delivered to the human body through the lower infusion tube 103 and the connecting needle, thereby avoiding the impact of impurities in the drug solution on the human body.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An infusion set with a filter and drug delivery structure, characterized in that, The filter includes an upper infusion tube, a filter cartridge, a lower infusion tube, a coarse filtration layer, a fine filtration layer, an ultrafiltration layer, and a flushing component. The filter cartridge is connected to the upper infusion tube and located on one side of the upper infusion tube. The lower infusion tube is connected to the filter cartridge and located on the side of the filter cartridge away from the upper infusion tube. The coarse filtration layer is connected to the filter cartridge and located on one side of the filter cartridge. The fine filtration layer is connected to the coarse filtration layer and located on one side of the coarse filtration layer. The ultrafiltration layer is connected to the fine filtration layer and located on the side of the fine filtration layer away from the coarse filtration layer. The flushing component is disposed on the filter cartridge.

2. The infusion set with a filter-based drug delivery structure as described in claim 1, characterized in that, The flushing component includes a flushing tube and a rubber sheet. The flushing tube is connected to the filter cylinder and is located on the side of the filter cylinder away from the upper infusion tube. The rubber sheet is connected to the flushing tube and is located on one side of the flushing tube.

3. The infusion set with a filter-based drug delivery structure as described in claim 2, characterized in that, The flushing component also includes a rubber plug, which is disposed on the flushing pipe and located on one side of the flushing pipe.

4. The infusion set with a filter-based drug delivery structure as described in claim 1, characterized in that, The infusion set with a filter-based drug delivery system also includes a flow rate controller, which is mounted on the lower infusion tube.

5. The infusion set with a filter-based drug delivery structure as described in claim 1, characterized in that, The infusion set with a filter-based drug delivery structure also includes a drug delivery tube, which is connected to the upper infusion tube and located on one side of the upper infusion tube.

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