Dispensing auxiliary needle for infusion bottle
By designing an auxiliary needle for dispensing medication into infusion bottles, and utilizing a one-way valve and channel structure, rapid dissolution and transfer of powdered drugs are achieved, solving the problems of time-consuming and labor-intensive traditional drug dispensing methods and drug residues, thus improving treatment efficacy.
Patent Information
- Application Number
- CN202422282149.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-09-19
AI Technical Summary
In existing technologies, the preparation process for powdered drugs is time-consuming and labor-intensive, and drug residues are left behind, affecting the therapeutic effect.
An auxiliary needle for dispensing medication into an infusion bottle has been designed, comprising a needle body, a first needle tip, a second needle tip, a pump channel, and a reflux channel. Equipped with a one-way valve, it enables rapid connection between the syringe and the infusion bottle and medication bottle, and achieves efficient dissolution and transfer of medication through the pump and reflux channels.
It enables rapid and low-residue drug preparation, improves treatment efficacy, reduces drug residue in vials, and simplifies the operation process.
Smart Images
Figure CN223504540U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and specifically relates to an auxiliary needle for dispensing medication into an infusion bottle. Background Technology
[0002] Intravenous infusion is a common treatment method for patients, involving the addition of specific medications to an injection solution, which are then delivered into the bloodstream via infusion. Before injection, medication needs to be prepared in the infusion bottle. A significant portion of these medications are stored in powder form in vials before use (such as penicillin injection). The preparation process for these medications is quite cumbersome. Traditionally, a small amount of the injection solution is drawn from the infusion bottle and injected into the vial to dissolve the drug before being drawn back into the infusion bottle. This method is time-consuming, labor-intensive, and requires repeated repetitions. Furthermore, a certain amount of drug residue remains in the vial, resulting in a lower actual dosage delivered to the patient's bloodstream than prescribed, thus affecting treatment efficacy. Therefore, developing a rapid, efficient, and low-residue medication preparation aid is of great significance. Utility Model Content
[0003] The purpose of this invention is to provide an auxiliary needle device for dispensing medication into infusion bottles, so as to overcome the shortcomings of existing medication dispensing methods that rely solely on syringes.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An infusion bottle dispensing auxiliary needle has the following structure: a needle body 1, with a first needle tip 2 and a second needle tip 3 at both ends of the needle body 1. The needle body 1 has a pumping channel 4 and a return channel 5 that pass through the needle body 1 and connect the first needle tip 2 and the second needle tip 3. The middle part of the needle body 1 has a retainer 6 that communicates with the pumping channel 4. The pumping channel 4 has a first one-way valve 7 and a second one-way valve 8 located on both sides of the retainer 6. The direction of the first one-way valve 7 and the second one-way valve 8 is to allow the liquid to flow unidirectionally from the first needle tip 2 to the second needle tip 3. The retainer 6 is a standard syringe connection retainer.
[0006] Preferably, the diameter of the needle body 1 is 0.5cm, the diameter of the pump channel 4 and the return channel 5 is 0.1cm, the length of the first needle tip 2 and the second needle tip 3 is 1cm to 1.5cm, and the total length of the needle body 1 together with the first needle tip 2 and the second needle tip 3 is 10cm to 20cm.
[0007] Beneficial effects:
[0008] 1. This utility model connects the syringe, infusion bottle, and medicine bottle in one go. Medication can be prepared by repeatedly pulling and pushing the syringe piston, eliminating the trouble of repeatedly inserting and removing the syringe between the medicine bottle and the infusion bottle in the traditional method of medication preparation, making it convenient to use.
[0009] 2. This utility model is equipped with two one-way valves. Using the device of this utility model, the injection solution can be continuously pumped into the medicine bottle and then the medicine can be pumped back to the infusion bottle under high pressure through the return channel. Compared with the traditional medicine preparation method, the drug residue in the vial is greatly reduced, and the treatment effect is improved. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This diagram illustrates the state of the two one-way valves and the direction of liquid flow when the syringe piston is pulled during the use of this invention.
[0012] Figure 3 This diagram illustrates the state of the two one-way valves and the direction of liquid flow when the syringe piston is pushed during the use of this invention. Detailed Implementation
[0013] The present invention will be further described below with reference to the embodiments.
[0014] Example 1: Overall Structure of this Utility Model
[0015] See Figure 1 The structure of this utility model includes a needle body 1, with a first needle tip 2 and a second needle tip 3 at both ends. The needle body 1 has a pumping channel 4 and a return channel 5 that pass through the needle body 1 and connect the first needle tip 2 and the second needle tip 3. The middle part of the needle body 1 has a bayonet 6 that communicates with the pumping channel 4. The pumping channel 4 has a first one-way valve 7 and a second one-way valve 8 located on both sides of the bayonet 6. The direction of the first one-way valve 7 and the second one-way valve 8 is to allow the liquid to flow unidirectionally from the first needle tip 2 to the second needle tip 3. The bayonet 6 is a standard syringe connection bayonet and can be connected to a standard syringe.
[0016] Example 2: Specific process of dispensing medicine using this invention
[0017] When medication needs to be prepared, the first needle tip 2 of this invention is inserted into the rubber stopper of the infusion bottle 9, and the second needle tip 3 is inserted into the rubber stopper of the vial 10 containing the medication to be prepared. The syringe 11 without a needle is connected to the bayonet 6 of this invention and tightened. When the piston of the syringe 11 is pulled, the first one-way valve 7 on the side of the infusion bottle 9 will open, and the second one-way valve 8 on the side of the vial 10 will close. The liquid in the infusion bottle 9 is drawn into the syringe 11 through the pump channel 4. Figure 2As shown in the diagram, the dashed arrows indicate the direction of liquid flow. When the piston of syringe 11 is pushed, the first one-way valve 7 closes, and the second one-way valve 8 opens. The liquid in syringe 11 is pushed into vial 10, dissolving the medicine in vial 10, and then pushed back into infusion bottle 9 through reflux channel 5. Figure 3 As shown in the diagram, the dashed arrows indicate the direction of liquid flow. By repeatedly performing the above operations, the medication in vial 10 will be completely dissolved and injected into infusion bottle 9 to complete the medication preparation. The entire process is convenient, eliminating the cumbersome operation of repeatedly inserting and removing syringes required by traditional medication preparation methods. Simply pulling and pushing the syringe plunger repeatedly can quickly dissolve the medication in the vial and pump it back into the infusion bottle, resulting in more thorough dissolution and reducing medication residue in the vial.
Claims
1. A medication preparation auxiliary needle for infusion bottles, characterized in that, The structure includes: a needle body (1), with a first needle tip (2) and a second needle tip (3) at both ends of the needle body (1). The needle body (1) has a pumping channel (4) and a return channel (5) that pass through the needle body (1) and connect the first needle tip (2) and the second needle tip (3). The needle body (1) has a bayonet (6) in the middle that communicates with the pumping channel (4). The pumping channel (4) has a first one-way valve (7) and a second one-way valve (8) located on both sides of the bayonet (6). The direction of the first one-way valve (7) and the second one-way valve (8) is to allow the liquid to flow unidirectionally from the first needle tip (2) to the second needle tip (3). The bayonet (6) is a standard syringe connection bayonet.
2. The infusion bottle medication preparation auxiliary needle according to claim 1, characterized in that, The diameter of the needle body (1) is 0.5cm, the diameter of the pump channel (4) and the return channel (5) is 0.1cm, the length of the first needle tip (2) and the second needle tip (3) is 1cm to 1.5cm, and the total length of the needle body (1) together with the first needle tip (2) and the second needle tip (3) is 10cm to 20cm.