CN208405366U - Syringe - Google Patents

Abstract

The utility model provides a kind of syringe, it is related to the technical field of medical instrument, the syringe, including syringe outer cylinder, the front end of syringe outer cylinder be provided with towards the syringe before to protrusion the first flange, the rear end of syringe outer cylinder is provided with the second flange towards circumferential direction protrusion outside the syringe, to the third flange of protrusion after being provided on the outside of the second flange towards the syringe.Syringe can steadily be fixed in dispenser by the flanged structure for being set to syringe initial and end both ends, prevent syringe during push-and-pull from shaking.

Description

Syringe

Technical field

The utility model relates to the technical fields of medical instrument, more particularly, to a kind of syringe.

Background technique

Currently, medical worker is usually to complete extraction and liquid medicine injection by disposable syringe, for example, to disease Before people's injection, nurse is needed to make up a prescription, specific operating method is nurse using dedicated dispensing injector with pin, extracts physiology salt Then water re-injects into physiological saline in the medicine bottle for needing to inject into syringe, and rocking makes drug be substantially dissolved in life It manages in salt water.After drug and physiological saline are sufficiently mixed, mixed solution is withdrawn into dispensing injector with pin again by nurse, finally will mixing Solution injects intravenous injection bottle.The process made up a prescription is complicated, and heavy workload, time-consuming, especially in high morbidity season, the labor made up a prescription Fatigue resistance is bigger, causes female-dominated nurse to be difficult to adhere to, also be easy to cause accident.

Dispenser refers to that can assist in medical worker extracts or inject a certain amount of medical fluid one of to infusion bottle Device.Dispenser includes push-and-pull injection body and disposable syringe, and disposable syringe is connected in push-and-pull injection body Afterwards, extraction and injection of the disposable syringe to medical fluid are realized by control push-and-pull injection body.

But existing dispenser has the following problems in use: existing syringe merely with its syringe outside Ears structure and dispenser on cylinder side wall are clamped, and fixed position is less, are not fixed firmly and are leaned on, push and pull syringe repeatedly, will lead to Syringe shakes, and influences medical staff's operation.

Utility model content

The purpose of this utility model is to provide a kind of syringes, to solve to consolidate when existing syringe is connect with dispenser Fixed point is few, the illusive technical problem of structure.

The front end of syringe provided by the utility model, including syringe outer cylinder, the syringe outer cylinder is provided with direction To the first flange of protrusion before the syringe, the rear end of the syringe outer cylinder is provided with towards circumferential direction side outside the syringe To the second flange of protrusion, to the third flange of protrusion after being provided on the outside of second flange towards the syringe.

Further, the syringe further includes push-pull rod, and the hole slot of opening backward is provided on the push-pull rod, is made up a prescription The drive rod of device is fixed in hole slot, for driving the push-pull rod to move forward and backward.

Further, the syringe outer cylinder front end is provided with syringe needle deck, the injection of the syringe needle deck and dispenser Port part side wall offsets, for preventing when push-pull rod moves the syringe that relative motion occurs relative to dispenser.

Further, second flange is annular.

Further, the third flange is annular.

Further, the syringe includes syringe needle, and the syringe needle is threadedly coupled with the syringe outer cylinder.

Further, second flange and the third flange are the annular that two sides are symmetrically arranged with planar structure.

Syringe provided in this embodiment, comprising: syringe outer cylinder, the front end of the syringe outer cylinder are provided with towards institute It states to the first flange of protrusion before syringe, the rear end of the syringe outer cylinder is provided with towards circumferential direction outside the syringe Second flange of protrusion, the first flange are to be located at syringe outer cylinder head and the tail for being fixedly connected with dispenser with the second flange The clamping structure at both ends can make syringe is more stable to be clamped in dispenser.It is provided on the outside of second flange To the third flange of protrusion after towards the syringe, third flange and being clasped in dispenser can be with after buckle is stuck Syringe is fixed in dispenser.Syringe and dispenser are fixedly connected on one using the cooperation between multiple fixed points It rises, to reach the technical effect of firm and reliable connection.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of schematic diagram in direction of syringe provided by the embodiment of the utility model；

Fig. 2 is the schematic diagram in syringe another kind provided by the embodiment of the utility model direction；

Fig. 3 is the sectional view of syringe provided by the embodiment of the utility model；

Fig. 4 is the schematic diagram of another syringe provided by the embodiment of the utility model；

Fig. 5 is the main view of syringe shown in the utility model Fig. 4.

Icon: 100- syringe；110- syringe outer cylinder；120- push-pull rod；121- hole slot；The first flange of 111-；112- Second flange；113- third flange；114- syringe needle deck；115- planar structure.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

Syringe provided by the utility model is compared than existing ordinary syringe, increases multiple fixed structures, can be with The syringe is preferably adapted to Medical Instruments such as dispensers and is fixed together.

As shown in Figure 1, syringe 100 provided in this embodiment, comprising: syringe outer cylinder 110, the syringe outer cylinder 110 front end be provided with towards the syringe 100 before to protrusion the first flange 111, the rear end of the syringe outer cylinder 110 It is provided with the second flange 112 towards the syringe 100 outer circumferential direction protrusion, the first flange 111 is with the second flange 112 For what is be fixedly connected with dispenser, clamping structure positioned at 110 head and the tail both ends of syringe outer cylinder can make syringe 100 more Add stable be clamped in dispenser.The outside of second flange 112 be provided with towards the syringe 100 after to protrusion Syringe 100 can be fixed on after buckle is stuck and match by third flange 113, third flange 113 and being clasped in dispenser In medicine device.Syringe 100 is fixed together with dispenser using the cooperation between multiple fixed points, to reach connection Solid and reliable technical effect.

As shown in Fig. 2, syringe 100 further includes push-pull rod 120, the inner end of push-pull rod 120 is provided with piston, the piston It is fitted close, and can be slided relative to syringe outer cylinder 110 with the inner wall of syringe outer cylinder 110.On the push-pull rod 120 It is provided with the hole slot 121 of opening backward, the drive rod of dispenser is fixed in hole slot 121, before driving the push-pull rod 120 After move.The push-pull rod 120 of syringe 100 be designed to it is hollow, for connect with dispenser, to realize that push-and-pull operates.If pushed away Pull rod 120 be it is solid, external equipment connection push-pull rod 120 will certainly occupy longer space, this push-pull rod 120 it is hollow Design can save space and operation is convenient.

Specifically, first flange 111 can be the single arc convex perpendicular to the dispensing end end face.It is injecting It is vertically installed with single arc convex on the end face of 110 dispensing end of device outer cylinder, it is recessed that the corresponding position of dispenser is provided with first Slot.First flange 111 of syringe 100 is obliquely inserted into the first groove, the tail of syringe outer cylinder 110 is then pressed End, makes the first flange 111 and the first groove be connected together completely, fixes the dispensing end of syringe outer cylinder 110 to reach Effect.Why single arc convex can be only set, be because the shackle portion of the first flange 111 and the first groove is exactly Arc, setting corresponding in this way can save raw material.

Preferably, as shown in Figure 1, first flange 111 is ring-type.The cricoid setting of first flange 111 is being infused It penetrates on the end face at end, when syringe 100 to be fixed in dispenser, without rotary syringe 100 again deliberately by first Flange 111 and the first groove cooperate, and any position, which can be clamped, is clamped the two, make the first flange 111 and the first groove Connection it is more convenient.

The cross section of first flange 111 can be arc, that is to say, that the first flange 111 curves inwardly, corresponding The cross section of groove in dispenser is also arc.First flange 111 of syringe 100 is obliquely inserted into the first groove It is interior, make the first flange 111 of arc completely into in the first groove being adapted to therewith, then presses syringe outer cylinder 110 Tail end makes the first flange 111 and the first groove be connected together completely, consolidates the dispensing end of syringe outer cylinder 110 to reach Fixed effect.Described when the first flange 111 is adapted to completely with the first groove because the first flange 111 is arc-shaped, segmental arc will It will form the resistance for hindering syringe 100 to move along its length, to reach better fixed effect.

Preferably, second flange 112 is ring-type.Cricoid second flange 112 is arranged in syringe outer cylinder 110 On outer wall, when syringe 100 to be fixed in dispenser, without rotary syringe 100 again by the second flange 112 and second Groove cooperates, and any position, which can be clamped, is clamped the two, keeps the connection of the second flange 112 and the second groove more square Just.

Similarly, the shape that second flange 112 surrounds can also be the polygons such as triangle, square, and with the Corresponding second groove of two flanges 112 is then threadiness, and the second linear groove is corresponding with the wherein a line of above-mentioned polygon, it Be shaped to polygon so the second flange 112 is surrounded, be in order to prevent syringe 100 freeed in dispenser turn It is dynamic.Syringe 100 frees rotation in dispenser in order to prevent, and preferably embodiment is shown in Fig. 4 and Fig. 5, by the second flange 112 The shape surrounded with third flange 113 is set as the annular that two sides are symmetrically arranged with planar structure.

As shown in figure 3, the outside of second flange 112 be provided with towards the syringe 100 after to protrusion third Flange 113, the third flange 113 are vertical with the second flange 112.When syringe 100 is put into dispenser, the first flange 111 are only clamped with dispenser with the second flange 112, and external force still can make syringe 100 be detached from dispenser, also need It is correspondingly arranged third flange 113 and buckle, buckle has guide surface and adjustable spring, and third flange 113 is pressed down against buckle, Buckle retracts in dispenser, and after third flange 113 is completely into the second groove, buckle stretches out, thus make buckle respectively with Second flange 112 and third flange 113 offset, and realize the stuck effect being fixed in the dispenser of syringe 100.

The syringe 100 includes syringe needle, and the syringe needle is connected through a screw thread with syringe outer cylinder 110.Currently, common The connection type of syringe outer cylinder 110 and syringe needle is grafting, but the syringe 100 being adapted to dispenser is needed to a variety of drugs It is extracted and is injected, so to be repeatedly inserted into and extract the flask for medicinal preparations for having rubber stopper, be likely to cause syringe needle and note in this way Emitter outer cylinder 110 separates, and takes trouble to work of making up a prescription.And when making up a prescription, after syringe needle is separated with syringe outer cylinder 110, medical care Personnel can only be inserted the needle on syringe outer cylinder 110 with hand, can thus syringe needle be made to be contaminated, syringe needle is re-inserted into In flask for medicinal preparations, medicament will be polluted, be taken hidden danger to the treatment of patient.So to guarantee syringe needle and syringe outer cylinder 110 it Between the fastness that connects, syringe 100 provided by the utility model can fully ensure that the secured of connection using being threadedly coupled Property, it is not in the phenomenon that syringe needle is separated with syringe outer cylinder 110 appearance when extracting syringe needle.

In the dispensing end of syringe outer cylinder 110, and the position being connect with syringe needle, it is provided with syringe needle deck 114, the syringe needle Deck 114 and the dispensing end oral area side wall of dispenser offset, and increase the fixed point of syringe 100 Yu dispenser again in this way, from And it can prevent syringe needle when extraction or injection medicament from swinging in the circumferential.

Preferably, as shown in figure 3, syringe needle is threadedly coupled with the syringe needle deck 114 of syringe 100, thus by syringe needle and note Emitter outer cylinder 110 connects.On the inner wall of syringe needle deck 114 be correspondingly arranged on screw thread on syringe needle, when syringe needle is installed, only need by Syringe needle screws in, and has both conveniently had securely.

Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (7)

1. a kind of syringe, which is characterized in that including syringe outer cylinder, the front end of the syringe outer cylinder is provided with described in To the first flange of protrusion before syringe, the rear end of the syringe outer cylinder is provided with convex towards circumferential direction outside the syringe The second flange risen, to the third flange of protrusion after being provided with towards the syringe on the outside of second flange.

2. syringe according to claim 1, which is characterized in that the syringe further includes push-pull rod, the push-pull rod On be provided with opening hole slot backward, the drive rod of dispenser is fixed in hole slot, for driving the push-pull rod to move forward and backward.

3. syringe according to claim 1, which is characterized in that the syringe outer cylinder front end is provided with syringe needle deck, The syringe needle deck and the dispensing end oral area side wall of dispenser offset, for preventing the syringe when push-pull rod moves opposite Relative motion occurs in dispenser.

4. syringe according to claim 1, which is characterized in that second flange is annular.

5. syringe according to claim 4, which is characterized in that the third flange is annular.

6. syringe according to claim 1 or 3, which is characterized in that the syringe includes syringe needle, the syringe needle and institute State the threaded connection of syringe outer cylinder.

7. syringe according to claim 1, which is characterized in that second flange and the third flange are two sides pair Claim the annular for being equipped with planar structure.