An integrated syringe for intravenous drug administration and flushing
By designing an integrated syringe for intravenous administration and flushing, the problem of existing medical tools requiring replacement of syringes to complete flushing is solved, and the operation of injection and flushing is achieved is simplified, which reduces the workload and resource waste of medical staff, and increases the Safety and accuracy of administration.
Patent Information
- Application Number
- CN201910225107.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-03-25
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2039-03-25
AI Technical Summary
Existing medical tools need to be replaced after intravenous administration to complete the flushing tube, resulting in increased workload of medical staff, increased pollution opportunities, wasted resources and increased medical expenses.
Design an integrated syringe with intravenous drug delivery and flushing tube, including a syringe cartridge and an integrated syringe push rod. The push rod is equipped with a piston, a drop column and a flushing tube liquid bag. The liquid injection and flushing tube liquid are realized through the movement of the push rod. Automatic injection simplifies the operation process.
The one-time completion of injection and flushing tube is achieved, the intermediate replacement steps are reduced, the working time of health resources and medical staff is saved, and the safety and accuracy of drug delivery are improved.
Smart Images
Figure CN109771744B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a medical tool, in particular to an intravenous push injection medication and flushing syringe. Background Art
[0002] In the field of medical care, syringes are the most common medical devices with a wide range of uses and large dosages. They are mainly used for the preparation of various drugs and various injection methods, such as intravenous infusion dosing, intravenous injection, intramuscular injection, subcutaneous injection, intradermal injection, intracardiac injection, acupoint injection, etc., especially after certain injections such as intravenous push injection, especially in pediatrics or neonatology, each injection volume is 5 ml and the extension tube must retain 2 ml of liquid medicine. The price of some diseases is thousands of yuan per medicine, and 2 ml of liquid medicine extension tube must be retained, etc., so after the drug is administered, the remaining amount of medicine in the extension tube must be flushed into the blood vessel to ensure the amount of medicine used and reduce the waste of medicine. So far, there is no integrated syringe for intravenous administration and flushing in the clinical medical drug administration process. After intravenous administration, a syringe must be replaced to draw out the flushing liquid, and then the liquid medicine in the extension tube must be flushed into the body's blood vessels to ensure the amount of medicine used and reduce the waste of liquid medicine. The present invention aims to solve the problem that the above-mentioned syringe and the flushing tube syringe are not integrated and a syringe needs to be replaced to complete the flushing of the tube after a drug is administered once, which increases the medical care costs of medical staff, increases working hours, increases the chance of pollution, increases patient medical expenses and wastes health resources. At the same time, a series of patents for intravenous drug administration and flushing tube syringes are applied for, a packaged intravenous push drug administration and flushing tube integrated syringe, the piston and the flushing tube device are manufactured separately, the process is simple and the production difficulty is small, but because the non-disposable molded descending column and the holes of each packaged part must be aligned accurately to ensure that the descending column accurately enters the hole and ensures the normal push of the piston, the flushing tube device after intravenous drug administration of the present invention is once-formed, and an intravenous drug administration and flushing tube integrated syringe is provided. Summary of the invention
[0003] The purpose of the present invention is to solve the problems that the above-mentioned existing syringes have no flushing function, the syringe needs to be replaced after one injection to complete the flushing, which increases the workload of medical care, increases the chance of pollution, wastes health resources, and increases medical insurance consumption, and to provide an integrated syringe for intravenous administration and flushing.
[0004] An integrated syringe for intravenous medication and flushing comprises a syringe barrel and an integrated syringe push rod, wherein the integrated syringe push rod is arranged inside the syringe barrel.
[0005] The injection barrel comprises a syringe, a nipple, a nipple cover and a cutter. The nipple is arranged at the top of the syringe, the cutter is arranged just below the nipple at the bottom edge of the syringe, and the nipple cover is covered on the nipple.
[0006] The integrated syringe push rod comprises a push rod, on which four first through holes and four second through holes are arranged, a piston, on which four third through holes, four stop nuts, four descending columns, a protective cover, a guardrail, a flushing liquid bag and a stop column are arranged, the piston is arranged at the top of the push rod, the threaded ends of the four descending columns respectively pass through the third through holes on the piston and the second through holes on the push rod, the threaded ends are tightened with stop nuts, the guardrail is arranged at the non-threaded end of the descending column, the protective cover is arranged in the space formed by the descending column and the guardrail, and the flushing liquid bag is arranged inside the protective cover. The stop column passes through the first through hole on the push rod, so that the push rod cannot move downward in the syringe.
[0007] Working principle and process of the present invention:
[0008] When in use, first pull out the limit column, the integrated syringe push rod can be freely pulled out between the syringe barrels, then remove the nipple cover and install the needle, and pull the integrated syringe push rod to draw the medicine into the syringe barrel.
[0009] When injecting medicine, push the integrated syringe push rod, the integrated syringe push rod moves forward, and the medicine liquid is injected into the human body. After the medicine is injected, the flushing liquid bag is pushed to the bottom edge of the syringe by the integrated syringe push rod, the guardrail contacts the bottom edge of the syringe, the descending column moves along the third through hole and the second through hole, the protective cover shrinks, and the flushing liquid bag contacts the cutter arranged just below the nipple at the bottom edge of the syringe, the cutter cuts the flushing liquid bag, and the flushing liquid flows into the syringe through the rupture. Under the action of the integrated syringe push rod, the flushing liquid enters the extension tube, and the remaining amount of medicine in the extension tube is flushed into the blood vessel.
[0010] Beneficial effects of the present invention:
[0011] The present invention enables injection and flushing to be completed at one time, without the need to replace the syringe in the middle, reducing complicated procedures such as replacement, drug extraction, flushing, etc., and can reduce the usage of intravenous medication syringes by several times, saving health resources and reducing medical insurance expenditures. It has a simple structure and is easy to operate, reduces the workload of medical staff and saves labor time, and improves the safety and accuracy of intravenous medication. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional schematic diagram of the present invention.
[0013] Figure 2 It is a partial stereoscopic schematic diagram of the present invention.
[0014] Figure 3 It is a partial stereoscopic schematic diagram of the present invention.
[0015] Figure 4 It is a partial cross-sectional schematic diagram of the present invention. DETAILED DESCRIPTION
[0016] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an integrated syringe for intravenous administration and flushing comprises a syringe barrel 1 and an integrated syringe push rod 2, wherein the integrated syringe push rod 2 is arranged inside the syringe barrel 1.
[0017] The syringe 1 comprises a syringe 11 , a nipple 12 , a nipple cover 13 and a cutter 14 . The nipple 12 is arranged at the top of the syringe 11 , the cutter 14 is arranged just below the nipple 12 at the bottom edge of the syringe 11 , and the nipple cover 13 covers the nipple 12 .
[0018] The integrated syringe push rod 2 includes a push rod 21, on which four first through holes 211 and four second through holes 212 are arranged, and a piston 22. The piston 22 is provided with four third through holes 221, four stop nuts 23, four descending columns 24, a protective cover 25, a guardrail 26, a flushing liquid bag 27 and a stop column 28. The piston 22 is arranged at the top of the push rod 21, and the threaded ends of the four descending columns 24 pass through the third through holes 221 on the piston 22 and the second through holes 212 on the push rod 21 respectively, and the threaded ends are tightened with stop nuts 23. The guardrail 26 is arranged at the non-threaded end of the descending column 24, the protective cover 25 is arranged in the space formed by the descending column 24 and the guardrail 26, and the flushing liquid bag 27 is arranged inside the protective cover 25. The stop column 28 passes through the first through hole 211 on the push rod 21, so that the push rod 21 cannot move downward in the syringe 11.
[0019] Working principle and process of the present invention:
[0020] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown: when extracting liquid medicine, first pull out the limit column 28, the integrated syringe push rod 2 can be freely pulled out between the syringe barrel 11, then remove the nipple cover 13 to install the needle, and pull the integrated syringe push rod 2 to draw the liquid medicine into the syringe barrel 11.
[0021] When injecting medicine, push the integrated syringe push rod 2, the integrated syringe push rod 2 moves forward, and the medicine liquid is injected into the human body. After the medicine is injected, the flushing liquid bag 27 is pushed to the bottom edge of the syringe 11 by the integrated syringe push rod 2, the guardrail 26 contacts the bottom edge of the syringe 11, the descending column 24 moves along the third through hole 221 and the second through hole 212, the protective cover 25 shrinks, and the flushing liquid bag 27 contacts the cutter 14 arranged just below the nipple 12 at the bottom edge of the syringe 11. The cutter 14 cuts the flushing liquid bag 27, and the flushing liquid flows into the syringe 11 through the rupture. Under the action of the integrated syringe push rod 2, the flushing liquid enters the extension tube and flushes the remaining medicine in the extension tube into the blood vessel.
Claims
1. An integrated syringe for intravenous drug administration and flushing, comprising a syringe barrel (1) and an integrated syringe push rod (2), wherein the integrated syringe push rod (2) is arranged inside the syringe barrel (1); The syringe (1) comprises a syringe (11), a nipple (12), a nipple cover (13) and a cutter (14); the nipple (12) is arranged at the top of the syringe (11); the cutter (14) is arranged just below the nipple (12) at the bottom edge of the syringe (11); and the nipple cover (13) covers the nipple (12); The integrated syringe push rod (2) comprises a push rod (21), the push rod (21) is provided with four first through holes (211) and four second through holes (212), a piston (22), the piston (22) is provided with four third through holes (221), four limit nuts (23), four descending columns (24), a protective cover (25), a guardrail (26), a flushing liquid bag (27) and a limit column (28), the piston (22) is arranged at the top end of the push rod (21), and the threaded ends of the four descending columns (24) are respectively connected to the push rod (21). The threaded end is fastened with a limit nut (23) through a third through hole (221) on the piston (22) and a second through hole (212) on the push rod (21), a guardrail (26) is arranged at the non-threaded end of the descending column (24), a protective cover (25) is arranged in a space formed by the descending column (24) and the guardrail (26), a flushing liquid bag (27) is arranged inside the protective cover (25), and a limit column (28) passes through the first through hole (211) on the push rod (21), so that the push rod (21) cannot move downward in the syringe (11); The protective cover (25) is arranged along the circumference of the four descending columns (24).