CN210078313U

CN210078313U - Aseptic medicine dissolving syringe capable of reducing particle pollution

Info

Publication number: CN210078313U
Application number: CN201920617822.2U
Authority: CN
Inventors: 于�玲
Original assignee: Liaoning Cancer Hospital and Institute
Current assignee: Liaoning Cancer Hospital and Institute
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-18
Anticipated expiration: 2029-04-30

Abstract

An aseptic medicine dissolving syringe capable of reducing particle pollution solves the problems that rubber and other particles are easily brought into medicine liquid to cause transfusion particle pollution and splashed medicine liquid particles harm the health of medical workers due to repeated penetration of a traditional aseptic medicine dissolving syringe. Including inside syringe empty tube that is provided with the syringe piston, its characterized in that: the upper end of the syringe piston is provided with a piston rod, an embedded guide pipe arranged along the drawing direction of the piston rod is arranged inside the piston rod, and the front end of the embedded guide pipe is communicated with a liquid inlet hole of the embedded pipe on the syringe piston; the rear end of the embedded flow guide pipe is connected with one end of a liquid guide pipe outside the piston handle; a one-way liquid inlet valve is arranged inside the pintle nipple at the front end of the empty cylinder of the injector. The medicine bottle has reasonable design and compact structure, can avoid the pollution of infusion particles caused by repeatedly puncturing the bottle plug when medicine is added, can effectively prevent the splashing of liquid medicine particles, and has flexible use and strong practicability.

Description

Aseptic medicine dissolving syringe capable of reducing particle pollution

Technical Field

The utility model belongs to the technical field of medical treatment auxiliary appliance, concretely relates to can avoid puncturing the infusion particle pollution that the bottle plug caused repeatedly when adding the medicine, effectively prevent splashing of liquid medicine particle, use in a flexible way, the aseptic medicine dissolving syringe of reducible particle pollution that the practicality is strong.

Background

The sterile medicine dissolving injector is a necessary consumable for clinically adding and injecting medicines. Traditional aseptic medicine dissolving syringe comprises syringe needle, pintle nipple, lumen and syringe piston, and medical personnel need insert the syringe needle earlier in the medicine bottle when adding the medicine, extracts the syringe needle after the suction a quantitative liquid medicine, inserts the syringe needle in the liquid bag again, later, promotes the piston and pushes away the liquid medicine in the syringe and pours into the liquid bag into, accomplishes once and adds the medicine process. However, when the dosage of the medicine is increased, the sterile medicine dissolving injector with the traditional structure needs to use the needle head to repeatedly penetrate between the rubber plug of the medicine bottle and the rubber plug of the liquid bag for multiple times, so that the medicine can be added. The repeated insertion process is very easy to bring rubber and other particles into the liquid medicine, which causes pollution of infusion particles and harms the health of patients. In addition, in the process of repeatedly pulling the needle, the splashing of liquid medicine particles can be caused; the splashed medicine liquid particles form aerosol or spray in the air, and bring harm to the health of medical care personnel through contact with respiratory tract and skin. There is a need for an improved construction for sterile drug dissolving syringes of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just to above-mentioned problem, provide one kind and can avoid puncturing the infusion particle pollution that the bottle plug caused repeatedly when adding the medicine, effectively prevent splashing of liquid medicine particle, use in a flexible way, the aseptic medicine dissolving syringe of reducible particle pollution that the practicality is strong.

The utility model adopts the technical proposal that: the aseptic medicine dissolving syringe capable of reducing particle pollution comprises a syringe empty cylinder, and is characterized in that: the syringe is characterized in that a syringe piston is arranged in the syringe hollow cylinder, a piston rod is arranged at the upper end of the syringe piston, an embedded guide pipe arranged along the drawing direction of the piston rod is arranged in the piston rod, and the front end of the embedded guide pipe is communicated with a liquid inlet hole of the embedded pipe arranged on the syringe piston; the rear end of the embedded flow guide pipe is connected with one end of a liquid guide pipe arranged outside the piston handle at the end part of the piston rod; the front end of the empty syringe barrel is provided with a pintle nipple, a medicine bottle puncture needle is arranged on the pintle nipple, and a one-way liquid inlet valve which can only enable medicine liquid to enter the empty syringe barrel through the pintle nipple in a one-way mode is further arranged inside the pintle nipple.

The other end of the liquid guide pipe is provided with a Y-shaped joint, the single end of the Y-shaped joint is connected with the end part of the liquid guide pipe, the double ends of the Y-shaped joint are respectively connected with a connecting hose, and the end parts of the two connecting hoses are respectively provided with a liquid bag puncture needle and a threaded connector. The connecting hose with the liquid bag puncture needle is used for adding medicine, and the connecting hose with the threaded connector is used for statically pushing the medicine, so that various medicine injection modes are realized, the use is flexible, and the practicability is high.

The connecting hoses connected with the Y-shaped joints are provided with liquid stopping clamps, each liquid stopping clamp consists of a U-shaped main body, and the upper bending edge and the lower bending edge of each U-shaped main body are respectively provided with a tube penetrating hole; the opening side of the U-shaped main body is provided with a locking bevel edge; the lower end of the locking bevel edge is elastically connected with the lower bending edge, and the upper end of the locking bevel edge is matched and clamped with the locking flange at the end part of the upper bending edge; the inner side of the locking bevel edge facing the hose is provided with a movable buckle, and the inner side of the vertical edge of the U-shaped main body is provided with a fixed buckle. The upper end of the locking bevel edge is clamped with the locking flange at the upper part of the U-shaped main body in a matched manner, the movable buckle is pressed on the fixed buckle in a pressing manner, and then liquid flow in the connecting hose is temporarily blocked.

The liquid guide pipe is provided with a filter, and the filter is internally provided with an internal filter screen for filtering particles in the liquid medicine. To further purge the filled medicament.

The utility model has the advantages that: because the utility model adopts the empty syringe cylinder with the syringe piston inside, the upper end of the syringe piston is provided with the piston rod, the inside of the piston rod is provided with the embedded flow guide pipe arranged along the drawing direction of the piston rod, and the front end of the embedded flow guide pipe is communicated with the liquid inlet hole of the embedded pipe on the syringe piston; the rear end of the embedded flow guide pipe is connected with one end of a liquid guide pipe arranged outside the piston handle at the end part of the piston rod; a medicine bottle puncture needle is arranged on the pintle nipple at the front end of the empty syringe; the one-way liquid inlet valve is arranged in the pintle nipple and can only enable liquid medicine to enter the empty syringe barrel through the pintle nipple in one way, so that the one-way medicine extraction of the syringe through the pintle nipple and the one-way injection of the guide pipe embedded in the piston rod are realized; and the continuous filling of the dissolved medicine in the liquid bag is realized by repeatedly drawing and pulling the piston rod in a reciprocating manner. Thereby avoiding the pollution of infusion particles caused by repeatedly puncturing the bottle stopper during medicine adding, effectively preventing the splashing of liquid medicine particles, having flexible use and strong practicability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view showing the internal structure of the empty syringe barrel of fig. 1.

Fig. 3 is a schematic view of the piston rod in fig. 2 in a use state of pushing the liquid medicine downwards and flowing back into the catheter through the embedded duct.

Figure 4 is a schematic view of one configuration of the fluid stop clip of figure 1.

The sequence numbers in the figures illustrate: 1 injector empty cylinder, 2 medicine bottle puncture needles, 3 injector pistons, 4 piston rods, 5 liquid guide pipes, 6 filters, 7Y-shaped joints, 8 connecting hoses, 9 threaded interfaces, 10 liquid bag puncture needles, 11 liquid stopping clamps, 12 pintle nipples, 13 one-way liquid inlet valves, 14 embedded pipe liquid inlet holes, 15 embedded flow guide pipes, 16 piston handles, 17 liquid medicines, 18U-shaped main bodies, 19 upper bending edges, 20 lower bending edges, 21 pipe penetrating holes, 22 locking flanges, 23 locking oblique edges, 24 movable buckles and 25 fixed buckles.

Detailed Description

The specific structure of the present invention is described in detail with reference to fig. 1 to 4. The sterile drug dissolving syringe capable of reducing particle pollution comprises a syringe empty barrel 1 for containing drug liquid, wherein a syringe piston 3 for sucking and discharging the drug liquid is arranged in the syringe empty barrel 1. The upper end of the syringe piston 3 is provided with a piston rod 4 for pushing the piston, and one end of the piston rod 4 positioned outside the syringe hollow cylinder 1 is provided with a piston handle 16. An embedded guide pipe 15 arranged along the drawing direction of the piston rod 4 is arranged inside the piston rod 4, and the front end of the embedded guide pipe 15 is communicated with an embedded pipe liquid inlet hole 14 arranged on the injector piston 3; the rear end of the embedded flow guide tube 15 is connected to one end of a liquid guide tube 5 arranged outside a piston handle 16 at the end of the piston rod 4. In order to further purify the injected drug, the liquid guide tube 5 is provided with a filter 6, and the filter 6 is provided with an inner filter screen for filtering particles in the drug solution.

The other end of the catheter 5 is provided with a Y-shaped joint 7, the single end of the Y-shaped joint 7 is connected with the end part of the catheter 5, and the double ends of the Y-shaped joint 7 are respectively connected with a connecting hose 8. The end part of one of the connecting hoses 8 is provided with a liquid bag puncture needle 10 which is used for inserting into a liquid bag to add medicine, and the end part of the other connecting hose 8 is provided with a threaded interface 9 which is used for connecting an indwelling needle or a central venous catheter joint and completing medicine injection. And then the connecting hose 8 with the liquid bag puncture needle 10 is used for adding medicine, and the connecting hose 8 with the threaded connector 9 is used for statically pushing the medicine, so that various medicine injection modes are realized, and the use flexibility and the practicability of the device are improved. Meanwhile, the front end of the empty syringe 1 is provided with a pintle nipple 12, and the pintle nipple 12 is provided with a medicine bottle puncture needle 2 for inserting a medicine bottle; the inside of the pintle nipple 12 is provided with a one-way liquid inlet valve 13 which can allow the liquid medicine to enter the syringe hollow tube 1 only in one direction through the pintle nipple 12.

Two connecting hoses 8 connected with the Y-shaped joint 7 are respectively provided with a liquid stopping clip 11 for blocking liquid flow. The liquid stopping clamp 11 is composed of a U-shaped main body 18, and the upper bending edge 19 and the lower bending edge 20 of the U-shaped main body 18 are respectively provided with a through hole 21 for passing through the connecting hose 8. The opening side of the U-shaped main body 18 is provided with a locking bevel 23, the lower end of the locking bevel 23 is elastically connected with the lower bent edge 20, and the upper end of the locking bevel 23 is in matched clamping connection with the locking flange 22 at the end part of the upper bent edge 19. The inside of the locking bevel 23 facing the hose is provided with a movable catch 24 and the inside of the vertical side of the U-shaped body 18 is provided with a fixed catch 25. The upper end of the locking bevel 23 is clamped with the upper locking flange 22 of the U-shaped main body 18, and the movable buckle 24 is pressed on the fixed buckle 25 to temporarily block the liquid flow in the corresponding connecting hose.

When the sterile medicine dissolving syringe capable of reducing the particle pollution is used, firstly, a medicine bottle puncture needle 2 at the front end of an empty syringe barrel 1 is inserted into a medicine bottle stopper, and a liquid bag puncture needle 10 connected to a Y-shaped joint 7 at the end part of a catheter 5 is inserted into a liquid bag; at the same time, the connecting hose 8 connected to the nipple 9 is temporarily blocked by means of a liquid stop clip 11. Then, the piston rod 4 is pulled toward the rear end of the hollow syringe barrel 1, and the liquid medicine in the medicine bottle enters the cavity of the hollow syringe barrel 1 through the pintle nipple 12, and at this time, the one-way liquid inlet valve 13 is in an open state due to the forward flow of the liquid medicine (as shown in fig. 2). When the liquid medicine 17 in the empty syringe 1 needs to be injected into the liquid bag, the piston rod 4 is pushed forward, at this time, due to the reverse flow of the liquid medicine, the one-way liquid inlet valve 13 is in a closed state (as shown in fig. 3), the liquid medicine passes through the liquid inlet hole 14 of the internal embedded pipe on the syringe piston 3, is pushed back into the internal embedded guide pipe 15 of the piston rod 4, enters the filter 6 through the liquid guide pipe 5 for filtering, and then flows into the liquid bag connected with the liquid bag puncture needle 10 through the Y-shaped connector 7. When the liquid medicine injection device is required to be connected with an indwelling needle or a central venous catheter, the threaded connector 9 is used, the liquid stopping clamp 11 is used for temporarily blocking the connecting hose 8 connected with the liquid bag puncture needle 10, and the operations of sucking the liquid medicine by the drawing piston rod 4, reversely pushing the liquid medicine by the forward pushing piston rod 4 and the like are repeated to realize liquid medicine injection. Avoid the transfusion particle pollution caused by repeatedly puncturing the bottle stopper during medicine adding, and effectively prevent the splashing of the medicine liquid particles.

Claims

1. A sterile drug-dissolving syringe capable of reducing particulate contamination, comprising a syringe hollow barrel (1), characterized in that: the syringe is characterized in that a syringe piston (3) is arranged in the syringe hollow cylinder (1), a piston rod (4) is arranged at the upper end of the syringe piston (3), an embedded guide pipe (15) arranged along the drawing direction of the piston rod (4) is arranged in the piston rod (4), and the front end of the embedded guide pipe (15) is communicated with an embedded pipe liquid inlet hole (14) formed in the syringe piston (3); the rear end of the embedded draft tube (15) is connected with one end of a liquid guide tube (5) arranged outside a piston handle (16) at the end part of the piston rod (4); the front end of the empty syringe barrel (1) is provided with a pintle nipple (12), a medicine bottle puncture needle (2) is arranged on the pintle nipple (12), and a one-way liquid inlet valve (13) which can only enable liquid medicine to enter the empty syringe barrel (1) in one way through the pintle nipple (12) is arranged inside the pintle nipple (12).

2. A sterile, dissolvable drug syringe according to claim 1, having reduced particulate contamination, wherein: the other end of the liquid guide tube (5) is provided with a Y-shaped joint (7), the single end of the Y-shaped joint (7) is connected with the end part of the liquid guide tube (5), the double ends of the Y-shaped joint (7) are respectively connected with a connecting hose (8), and the end parts of the two connecting hoses (8) are respectively provided with a liquid bag puncture needle (10) and a threaded connector (9).

3. A sterile, dissolvable drug syringe according to claim 2, wherein: the liquid stopping clamps (11) are arranged on the connecting hoses (8) connected with the Y-shaped joints (7), each liquid stopping clamp (11) is composed of a U-shaped main body (18), and the upper bending edge (19) and the lower bending edge (20) of each U-shaped main body (18) are respectively provided with a through hole (21); a locking bevel edge (23) is arranged on the opening side of the U-shaped main body (18); the lower end of the locking bevel edge (23) is elastically connected with the lower bending edge (20), and the upper end of the locking bevel edge (23) is matched and clamped with the locking flange (22) at the end part of the upper bending edge (19); the inner side of the locking bevel edge (23) facing the hose is provided with a movable buckle (24), and the inner side of the vertical edge of the U-shaped main body (18) is provided with a fixed buckle (25).

4. A sterile, dissolvable drug syringe according to claim 1, having reduced particulate contamination, wherein: the liquid guide pipe (5) is provided with a filter (6), and the filter (6) is internally provided with an inner filter screen for filtering particles in the liquid medicine.