Disposable double-closed Murphy dropper infusion apparatus
By designing a closed Murphy drip infusion set that includes a stopper piercing device, a flow guide tube, a drug dispensing assembly, and a flow regulation assembly, the problem of drug solution exposure to air was solved, achieving aseptic operation and improved safety in the drug dispensing process.
Patent Information
- Application Number
- CN202421918836.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In existing intravenous infusion sets, the medication is exposed to air during the administration process, violating aseptic technique and leading to unsafe operation.
A disposable double-sealed Murphy drip infusion set was designed, comprising a stopper piercing device, a guide tube, a drip tube, a drug delivery assembly, a flow regulating assembly, and a closing assembly. Through the cooperation of a circular hole and a return spring, the set achieves sealed drug delivery and automatic shut-off functions.
This ensures that the medication solution does not come into contact with air during the dosing process, improving the reliability and safety of aseptic operation and avoiding the risk of air entering the human body.
Smart Images
Figure CN223438938U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field more specifically, relate to a disposable double closed Murphy's dropper infusion device. BACKGROUND
[0002] At present, intravenous infusion is the most commonly used method of administration in clinical treatment, and dropper medication is a method of quickly injecting liquid medicine into a vein to exert its curative effect, which is simple, fast and reliable in operation, especially in rescue, and can save time for clinical rescue work, but the side hole of the dropper has a needle eye exposed to the air after the medicine is added into the pot, and repeated operation can easily violate aseptic operation. SUMMARY
[0003] The utility model discloses a disposable double closed Murphy's dropper infusion device to solve the problems in the above background.
[0004] A disposable double closed Murphy's dropper infusion device, comprising a bottle plug piercer, the lower end of the bottle plug piercer is connected with a flow guide pipe, one end of the flow guide pipe close to the bottle plug piercer is connected with a dropper, the outer side of the dropper is connected with a medicine adding assembly, one end of the medicine adding assembly away from the dropper is sleeved with a cap, the middle part of the flow guide pipe is connected with a flow adjusting assembly, the other end of the flow guide pipe is connected with an infusion needle, one end of the flow guide pipe close to the infusion needle is connected with a closing assembly.
[0005] Preferably, the medicine adding assembly comprises a circular frame, one end of the circular frame away from the dropper is provided with a circular hole, and one end of the circular frame close to the dropper is connected with a first annular connecting block, the circular frame and the first annular connecting block form a flow-through cavity, and the circular hole is matched with the inlet of the syringe.
[0006] Preferably, one end of the first annular connecting block close to the dropper is connected with a first circular connecting block, one end of the first circular connecting block away from the dropper is connected with a return spring, one end of the return spring away from the first circular connecting block is connected with a second circular connecting block, one end of the second circular connecting block close to the return spring is connected with a second annular connecting block, and the first circular connecting block is fixedly connected with the first annular connecting block.
[0007] Preferably, the middle part of the circular frame is provided with a sliding groove, the second circular connecting block is slidingly connected with the circular frame through the sliding groove, the components of the closing assembly are the same as those of the medicine adding assembly, and the initial positions of the second annular connecting block and the second circular connecting block are matched with the inlet of the flow-through cavity, so as to close the inlet of the flow-through cavity, and the outlet of the flow-through cavity is communicated with the dropper.
[0008] Preferably, the flow regulating assembly comprises a second dropper, and a rectangular frame body is connected to the outside of the second dropper, and oblique rectangular sliding grooves are formed in the two ends of the rectangular frame body.
[0009] Preferably, the oblique rectangular sliding grooves are penetrated by a rotating shaft, the two ends of the rotating shaft are connected with first gears, the first gears are engaged with first racks which are oblique and close to one end of the second dropper, and the first gears can extrude the second dropper when moving along the first racks from the upper end to the lower end of the second dropper, so as to control the flow rate of the second dropper, and the second dropper can be closed when the first gears move to the other end of the first racks.
[0010] Compared with the prior art, the utility model has the advantages that:
[0011] 1) In the utility model, the injection port of the syringe is coincided with the circular hole, then the liquid medicine is injected into the sliding groove, a pressure is generated on the second circular connecting block, the reset spring is contracted, the second circular connecting block and the second annular connecting block are moved along the sliding groove, the upper end surface of the second circular connecting block is separated from the inlet of the flow-through cavity, the liquid medicine is added to the dropper through the flow-through cavity, the cap is covered after the liquid medicine is added, the overmuch liquid medicine is prevented from contacting with air, the exposure rate of the liquid medicine is reduced, and the sterile operation of the medical instrument is improved.
[0012] 2) In the utility model, when the liquid medicine is separated from the second dropper, the pressure of the liquid medicine on the second circular connecting block of the closing assembly is smaller than the reset force of the reset spring, the second circular connecting block seals the inlet of the flow-through cavity, if it is needed to manually close the liquid medicine flow-through, the first gear is pushed to move along the first rack towards the lower end of the second dropper, when the first gear moves to the other end of the first rack, an extrusion force is generated on the second dropper, and the second dropper is closed, the liquid medicine input is automatically closed along with the decrease of the liquid medicine, the liquid medicine input can also be manually stopped, the air injection into the human body is avoided, and the safety of the medical instrument is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is a liquid medicine adding assembly structure schematic view of the utility model;
[0015] Figure 3 It is a flow regulating assembly structure schematic view of the utility model.
[0016] Explanation of reference numerals in the figure: 1, bottle plug piercer; 2, flow guide pipe; 3, dropper; 4, medicine adding assembly; 402, circular frame; 403, circular hole; 404, flow-through cavity; 405, first annular connecting block; 406, first circular connecting block; 407, return spring; 408, second circular connecting block; 409, second annular connecting block; 5, flow rate adjusting assembly; 501, second dropper; 502, rectangular frame; 503, first rack; 504, rotating shaft; 505, first gear; 506, oblique rectangular sliding slot; 6, closing assembly; 7, infusion needle; 8, cap. DETAILED DESCRIPTION
[0017] Embodiment: Please refer to Figure 1 A disposable double-sealed Murphy dropper infusion device, comprising a bottle plug piercer 1, the lower end of the bottle plug piercer 1 being connected with a flow guide pipe 2, the end of the flow guide pipe 2 close to the bottle plug piercer 1 being connected with a dropper 3, the outer side of the dropper 3 being connected with a medicine adding assembly 4, the end of the medicine adding assembly 4 away from the dropper 3 being sleeved with a cap 8, the middle part of the flow guide pipe 2 being connected with a flow rate adjusting assembly 5, the other end of the flow guide pipe 2 being connected with an infusion needle 7, the end of the flow guide pipe 2 close to the infusion needle 7 being connected with a closing assembly 6.
[0018] Please refer to Figure 2 The medicine adding assembly 4 comprises a circular frame 402, the end of the circular frame 402 away from the dropper 3 being provided with a circular hole 403, and the end of the circular frame 402 close to the dropper 3 being connected with a first annular connecting block 405, the circular frame 402 and the first annular connecting block 405 forming a flow-through cavity 404, and the circular hole 403 being matched with the inlet of the syringe.
[0019] Please refer to Figure 2 The end of the first annular connecting block 405 close to the dropper 3 is connected with a first circular connecting block 406, the end of the first circular connecting block 406 away from the dropper 3 is connected with a return spring 407, the end of the return spring 407 away from the first circular connecting block 406 is connected with a second circular connecting block 408, the end of the second circular connecting block 408 close to the return spring 407 is connected with a second annular connecting block 409, and the first circular connecting block 406 is fixedly connected with the first annular connecting block 405.
[0020] The middle part of the circular frame 402 is provided with a sliding groove, the second circular connecting block 408 is slidably connected with the circular frame 402 through the sliding groove, the constituent parts of the closing assembly 6 are the same as those of the medicine adding assembly 4, and the initial positions of the second annular connecting block 409 and the second circular connecting block 408 are matched with the inlet of the flow-through cavity 404, so as to close the inlet of the flow-through cavity 404, and the outlet of the flow-through cavity 404 is in communication with the dropper 3.
[0021] Please refer toFigure 3 The flow regulating assembly 5 comprises a second drip tube 501, and a rectangular frame 502 is connected to the outer side of the second drip tube 501.
[0022] Please refer to Figure 3 The oblique rectangular sliding groove 506 penetrates a rotating shaft 504, the two ends of the rotating shaft 504 are connected with a first gear 505, the first gear 505 is engaged with a first rack 503 near one end of the second drip tube 501, and the first rack 503 is in an oblique shape. During the movement of the first gear 505 along the first rack 503 from the upper end to the lower end of the second drip tube 501, the second drip tube 501 will be extruded, so as to control the flow rate of the second drip tube 501, and when the first gear 505 moves to the other end of the first rack 503, the second drip tube 501 will be closed.
[0023] Working principle: first, the bottle plug piercer 1 pierces the bottle plug, then the medicine liquid in the drip bottle flows to the infusion needle 7 through the flow guide pipe 2, and then is delivered to the body, then during the infusion process, the medicine adding operation is needed, the cap 8 is pushed away, then the injection port of the syringe is along the circular hole 403 to deliver the injection liquid to the sliding groove, at this time, the injection liquid will generate a pressure on the second circular connecting block 408, so that the reset spring 407 is contracted, and then the second circular connecting block 408 and the second annular connecting block 409 move along the sliding groove, until the upper end surface of the second circular connecting block 408 is separated from the inlet of the flow-through cavity 404, so that the medicine liquid adds the medicine to the drip tube 3 through the flow-through cavity 404, when the medicine liquid in the second drip tube 501 gradually decreases, until the medicine liquid is separated from the second drip tube 501, the pressure of the medicine liquid on the second circular connecting block 408 in the closing assembly 6 is less than the reset force of the reset spring 407, and then the second circular connecting block 408 closes the inlet of the flow-through cavity 404, if manual closing of the medicine flow is needed, the first gear 505 is pushed to move along the first rack 503 towards the lower end of the second drip tube 501, when the first gear 505 moves to the other end of the first rack 503, an extrusion force is generated on the second drip tube 501, and then the second drip tube 501 is closed, thus all the operations are completed.
[0024] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A disposable double-sealed Murphy's dropper infusion set, comprising a bottle stopper piercer (1), characterized in that: The lower end of the bottle stopper piercer (1) is connected to a guide tube (2), the end of the guide tube (2) close to the bottle stopper piercer (1) is connected to a dropper (3), the outer side of the dropper (3) is connected to a dosing assembly (4), the end of the dosing assembly (4) away from the dropper (3) is sleeved with a cap (8), the middle part of the guide tube (2) is connected to a flow regulating assembly (5), the other end of the guide tube (2) is connected to an infusion needle (7), and the end of the guide tube (2) close to the infusion needle (7) is connected to a closing assembly (6).
2. A disposable double-sealed Murphy's dropper infusion set according to claim 1, characterized in that: The dosing assembly (4) includes a circular frame (402), an end of the circular frame (402) away from the dropper (3) is provided with a circular hole (403), and an end of the circular frame (402) close to the dropper (3) is connected to a first annular connecting block (405), and the circular frame (402) and the first annular connecting block (405) form a flow cavity (404).
3. The disposable double-sealed Murphy's dropper infusion set according to claim 2, characterized in that: The end of the first annular connecting block (405) close to the dropper (3) is connected to the first circular connecting block (406), the end of the first circular connecting block (406) away from the dropper (3) is connected to the return spring (407), the end of the return spring (407) away from the first circular connecting block (406) is connected to the second circular connecting block (408), and the end of the second circular connecting block (408) close to the return spring (407) is connected to the second annular connecting block (409).
4. The disposable double-sealed Murphy's dropper infusion set according to claim 3, characterized in that: A sliding groove is provided in the middle of the circular frame (402), and the second circular connecting block (408) is slidably connected to the circular frame (402) via the sliding groove. The components of the closing assembly (6) are the same as those of the dosing assembly (4).
5. The disposable double-sealed Murphy's dropper infusion set according to claim 4, characterized in that: The flow regulating assembly (5) comprises a second dropper (501), the outer side of the second dropper (501) is connected to a rectangular frame (502), and oblique rectangular sliding grooves (506) are provided at both ends of the rectangular frame (502).
6. The disposable double-sealed Murphy's dropper infusion set according to claim 5, characterized in that: The oblique rectangular chute (506) is penetrated by a rotating shaft (504), both ends of the rotating shaft (504) are connected to a first gear (505), and one end of the first gear (505) close to the second dropper (501) is meshed with a first rack (503).