A kind of syringeTechnical field
This utility model relates to medical apparatus field, is specifically related to a kind of sterile syringe.
Background technology
Positive pressure connector is a kind of infusion connector of needleless, and the silicon matter cap of positive pressure connector ensures that its inside is all the time in aseptic condition, becomes a kind of aseptic transfusion system of airtight erasable, can effectively reduce infection rate, extends and puts pipe use natural law.But the silicon matter cap of positive pressure connector is directly exposed in environment, easily contaminated.Other transfusion terminals have and are exposed to outer nipple etc. and also have similar situation.
Before use positive pressure connector or similar joint, need medical personnel to carry out disinfection with the cotton swab that dips in disinfectant solution.When use, need nurse first to take swab stick, open disinfectant solution bottle cap, dip in disinfectant solution, then wiping positive pressure connector outer Monday of circle, then wiping silicon matter cap mouth carries out disinfection for one week, and operator's subjective aspect is depended in this operation to a great extent, as experience, careful degree etc., there is the possibility of careless omission, can not ensure the reliability of sterilization, thereby increased patient infection's risk.Nurse carries out flushing, the tube sealing action need of a fluid infusion port and prepares the approximately 6 large class article such as disinfectant solution, swab stick, ordinary syringe, the medicine configuring, syringe needle and nurse job platform, set-up procedure is loaded down with trivial details, increase nurse's workload, easily caused obscuring of article, increased medical waste.
Summary of the invention
For existing issue, this utility model provides a kind of syringe, and port disinfection protection cap and syringe are combined, and makes that fluid infusion port sterilization is quick, standardization.The pipelines such as remaining needle, PICC, CVC, implanted transfusion port are being carried out after washing pipe, tube sealing processing; can directly utilize on syringe with sterilization block the fluid infusion port of these pipelines is protected; while reusing fluid infusion port simultaneously, only sterilization block need be taken off and operates.Reduced nurse operating procedure and the quantity with apparatus, avoid omit, reduced patient infection's risk.
The technical problem that this utility model proposes is to solve like this: syringe, comprise overcoat and be contained in the push rod in overcoat, push rod front end is connected with plug, plug and overcoat interference fit, push rod push-and-pull plug seesaws in overcoat, overcoat front end is provided with conehead, and the described outer device that is provided with encapsulation sterilization block that puts, is provided with the sponge that is soaked with disinfectant solution in described sterilization block.
The device of described encapsulation sterilization block is made up of cutting ferrule, sheath and Sealing piece, and cutting ferrule is fixed on overcoat crimping, and sheath is sleeved in cutting ferrule, and sterilization block is placed in sheath, and Sealing piece seals sheath.As a kind of optimal way, cutting ferrule is engraved structure, and cutting ferrule sidewall has two breach at nearly bottom place, is convenient to the sheath in cutting ferrule to release.
The device of described encapsulation sterilization block is made up of cutting ferrule and Sealing piece, and cutting ferrule is fixed on overcoat crimping, and on the sterilization block that Sealing piece involution is made at rigid plastics, disinfection cap cap sleeve is contained in cutting ferrule.
Described Sealing piece is aluminium foil heat seal Sealing piece.
Described syringe is filled with the flushing such as normal saline, heparin sodium, tube-sealing solution in advance.
Described overcoat wall is provided with annular retaining ring around conehead, on this annular retaining ring inwall, is provided with female Luer, and the female thread that helmet outside is provided with external screw thread and female Luer cooperatively interacts, and plays the effect of preliminary filling liquid in protection overcoat.When described syringe is non-pre-charge injector, female Luer coordinates with the puncture needle with female Luer, for drawing injection to syringe.
The beneficial effects of the utility model are that sterilization block and syringe are organically combined, use syringe to pipeline fluid infusion port rinse, after tube sealing operation, sterilization block is taken out from the device of encapsulation sterilization block, the fluid infusion port rotation of sterilization block being aimed to joint is screwed into, the sponge that is soaked with disinfectant solution in sterilization block contacts with fluid infusion port, the direct butt joint of disinfectant solution wherein carries out disinfection, in the time infusing next time, only need twist off that block can rinse, tube sealing operation, then repeat last point of operation.Syringe provided by the utility model has the following advantages: 1, reducing the operations such as nurse rinses, tube sealing fluid infusion port needs to prepare the quantity of article; 2, reduce nurse and carry out associative operation step; 3, reduce fluid infusion port and be exposed to contaminated risk in atmospheric environment, reduce patient infection's probability; 4, compact conformation, is easy to produce, and is convenient to large-scale promotion and uses.
Brief description of the drawings
Below in conjunction with accompanying drawing, this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial exploded view of the present utility model.
1 helmet, 2 female Luer, 3 coneheads, 4 overcoats, 5 overcoat crimpings, 6 plugs, 7 push rods, 8 sterilization blocks, 9 sponges, 10 cutting ferrules, 11 breach, 12 sheaths, 13 Sealing pieces.
Detailed description of the invention
As depicted in figs. 1 and 2, this utility model syringe construction helmet 1, overcoat 4, plug 6, push rod 7 are similar to ordinary syringe overall structure, push rod 7 is contained in overcoat 4, push rod 7 front ends are connected with plug 6, plug 6 and overcoat 4 interference fit, push rod 7 push-and-pull plugs 6 seesaw in overcoat 4, and overcoat 4 front ends are provided with conehead 3.Wherein overcoat 4 can be vacant i.e. pre-filling injection liquid not, also can be filled with in advance the flushing such as normal saline, heparin sodium, tube-sealing solution.
Conehead 3 is externally connected with helmet 1; as a kind of preferred structure; overcoat 4 walls are provided with annular retaining ring around conehead 3; on this annular retaining ring inwall, be provided with female Luer 2; the female thread that helmet 1 outside of syringe is provided with external screw thread and female Luer 2 cooperatively interacts; can further seal the contact surface between conehead 2 outer walls and helmet 1 inwall, play the effect of preliminary filling liquid in protection overcoat 4.If syringe is preliminary filling liquid not, this female Luer can coordinate with the puncture needle with female Luer, for drawing injection to syringe.
On the overcoat 4 of this utility model syringe, be provided with the device of encapsulation sterilization block, in described sterilization block 8, be provided with the sponge 9 that is soaked with disinfectant solution.The present embodiment has provided two kinds of preferred embodiments of the present utility model, but this utility model is not limited to this.
Embodiment 1
In the time that sterilization block 8 adopts flexible plastic, the device of described encapsulation sterilization block is made up of cutting ferrule 10, sheath 12 and Sealing piece 13.Cutting ferrule 10 is fixed on overcoat crimping 5, and sheath 12 is sleeved in cutting ferrule 10, and sterilization block 8 is placed in sheath 12, and Sealing piece 13 is by sheath 12 opening sealings.
Embodiment 2
In the time that sterilization block 8 adopts rigid plastics, the device of described encapsulation sterilization block forms (omitting sheath 12 structures in Fig. 2) by cutting ferrule 10 and Sealing piece 13, cutting ferrule 10 is fixed on overcoat crimping 5, and during sterilization block 8 is placed on, will sterilize 8 openings of blocking a shot of Sealing piece 13 seal.
In embodiment 1 and embodiment 2, the opening direction of sheath 12 can be to push rod 7 directions (as shown in Figure 2), also can with push rod opposite direction, along overcoat direction opening.As a kind of optimal way, cutting ferrule 10 sidewalls have two breach 11 at nearly bottom place, are convenient to the sheath in cutting ferrule 10 12 or sterilization block 8 to release.
Adopt flexible plastics as example taking sterilization block 8, as shown in Figure 2, at the outer surface of sterilization block 8 and the inner surface setting of sheath 12 striped that cooperatively interacts, while being convenient to screw sheath 12, can have enough frictional force to prevent that sheath 12 from producing and sliding with sterilization block 8.When use, complete after flushing, tube sealing operation when nurse uses syringe, syringe is taken off from fluid infusion port, from syringe jacket crimping 5, cutting ferrule 10 use fingers, the sheath 12 that sterilization block is housed is taken out, Sealing piece 13 is torn.Sterilization block sheath 12 is aimed to fluid infusion port (as positive pressure connector etc.) to screw in the direction of the clock.Sterilization block 8 is fixed on to fluid infusion port place, detaches backward sheath 12, sterilization block 8 is connected to fluid infusion port place together with 9, the sponge that is soaked with disinfectant solution inside.The sponge 9 and fluid infusion port close contact that are soaked with disinfectant solution, play the disinfection protection effect to fluid infusion port.In the time that nurse carries out flushing next time, tube sealing operation, the block 8 of sterilizing separates from fluid infusion port, can rush tube sealing operation.After complete operation, continue sterilization block 8 again to aim at fluid infusion port operation, can complete the protection work to port.
It is to operate to upper similar that sterilization block 8 adopts hard material, has reduced the device of sheath 12 because of relative sterilization block 8 while adopting flexible plastic, has reduced to step back detaching sheath 12 these steps.Other steps are identical.
From the foregoing, the use of sterilization block makes that fluid infusion port sterilizing operation is simple, standardization.