CN218338772U

CN218338772U - Soft stop buckle type quantitative precision injector

Info

Publication number: CN218338772U
Application number: CN202220825413.3U
Authority: CN
Inventors: 张洪杰; 张策
Original assignee: Beipu Medical Technology Co ltd
Current assignee: Beipu Medical Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2023-01-20
Anticipated expiration: 2032-04-11

Abstract

The utility model provides a soft stop buckle formula ration precision injector, including overcoat and core bar, the overcoat front end is equipped with the needle tubing, the needle tubing outside cup joints the sheath, the core bar is arranged in the overcoat inboard, the core bar front end is equipped with the piston, the core bar rear portion is equipped with hard snap ring, the overcoat rear portion is equipped with hard stop buckle, hard snap ring and the inboard interference fit of overcoat when the core bar pushes forward, hard stop buckle stop position of hard snap ring and overcoat when the core bar pulls backward, the anterior protrusion of core bar is equipped with the dosage snap ring, the overcoat inboard is equipped with the elasticity buckle, the elasticity buckle sets up from front to hypsokinesis slant, dosage snap ring accessible elasticity buckle when the core bar pulls backward, elasticity buckle stops position dosage snap ring when the core bar pushes forward; the utility model discloses an at the inside soft locking elasticity buckle that sets up of syringe overcoat, the volume of control syringe injection liquid can accurately draw the injection or shift the medicine, also can improve relevant instrument and detect the precision, prevents medical accident's emergence.

Description

Soft stop buckle type quantitative precision injector

Technical Field

The utility model relates to the technical field of syringes, especially, relate to a soft stop buckle formula ration precision syringe.

Background

Syringes are devices used to inject fluids or draw fluids and are typically provided with graduated markings indicating the volume of fluid in the syringe. When the existing injector is used for injection, the injection amount of the liquid is manually judged through scales on the injection tube, is greatly influenced by human factors, and is easily injected to pass through the head, so that the disposable injection amount is overlarge, and medical accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a soft stop buckle formula ration precision syringe.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a soft stop buckle formula ration precision injector, includes overcoat and core bar, the front end of overcoat is equipped with the needle tubing, the sheath is cup jointed in the needle tubing outside, the inboard of overcoat is arranged in to the core bar, the overcoat includes needle file and rod cover, a serial communication port, the front end of core bar is equipped with the piston, the rear portion protrusion of core bar is equipped with a hard snap ring, the inboard rear portion of overcoat is equipped with firmly ends the knot, the inboard interference fit of hard snap ring and overcoat when the core bar is pushed forward, the hard snap ring ends the position with the hardness of overcoat when the core bar is pulled backward, the inboard rear portion of overcoat is equipped with firmly ends the knot, the anterior protrusion of core bar is equipped with a plurality of dosage snap rings, the inboard of overcoat is equipped with elastic buckle, elastic buckle is by preceding inboard setting to the slant hypsokinesis, dosage snap ring accessible elastic buckle when the core bar is pulled backward, elastic buckle ends the position dosage snap ring when the core bar is pushed forward.

Furthermore, the front end of the dosage snap ring is provided with an inclined plane, the inclined plane is positioned at the outer edge of the dosage snap ring, and the inclined plane is inclined backwards from the inner side to the outer side.

Furthermore, the rod sleeve comprises a front rod sleeve, a connecting sleeve and a rear rod sleeve, the inner diameter of the rear rod sleeve is larger than that of the front rod sleeve, the hard snap ring is in interference fit with the inner side of the rear rod sleeve, and the dosage snap ring is matched with the inner side of the front rod sleeve.

Furthermore, a first dose clamping ring and a second dose clamping ring are arranged on the front portion of the core rod in a protruding mode, and the first dose clamping ring and the second dose clamping ring are arranged at the front portion and the rear portion at intervals.

Furthermore, the outer side of the outer sleeve is provided with a first dose mark and a second dose mark, the first dose mark and the second dose mark are arranged from front to back at intervals, and when the front end of the first dose clamping ring contacts the rear end of the elastic buckle, the second dose mark is aligned with the front end of the piston.

Further, the connecting sleeve is of a conical structure.

Furthermore, a cavity is arranged in the center of the rear end of the needle seat in a concave mode.

The utility model discloses a set up soft locking elasticity buckle inside the syringe overcoat, the core bar is equipped with the snap ring, when pulling back the core bar and extracting the liquid medicine, the outer cover dynamic elasticity buckle can easily be crossed to the core bar snap ring, when injecting the core bar and injecting the liquid medicine, the outer cover dynamic elasticity buckle is difficult to be crossed to the core bar snap ring, suggestion operating personnel syringe has already injected a certain amount of liquid at this moment, this dose is the dose of special settlement, and be equipped with the sign in this pause position;

when need continue to inject, use and obviously be different from the great power value of normal injection perception and cross the elasticity buckle, inject on next step, prevent to inject and cross the head, the volume of control syringe injection liquid can accurately draw the injection or transfer the medicine, also can improve relevant instrument detection accuracy, prevents the emergence of medical accident.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the core rod snap ring structure of the present invention;

FIG. 3 is a schematic view of a first dosage collar of the core rod of the present invention;

FIG. 4 is a schematic view of a second dosage ring of the core rod of the present invention;

fig. 5 is a schematic view of a first dose indicator of the sheath of the present invention;

fig. 6 is a schematic view of a second dosage indicator of the jacket of the present invention;

fig. 7 is a schematic view of the low residual design of the present invention.

Reference numerals:

1 outer sleeve, 2 core bar, 3 piston, 4 needle tube, 5 protective sleeve,

11 hard stop buttons, 12 elastic buckle buttons, 13 first dose marks, 14 second dose marks, 15 cavities,

21 a hard snap ring, 22 a first dose snap ring, 23 a second dose snap ring.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a soft stop buckle formula ration precision injector, as shown in figure 1, including overcoat 1 and core bar 2, the front end of overcoat 1 is equipped with needle tubing 4, and sheath 5 is cup jointed in the 4 outsides of needle tubing, and the inboard of overcoat 1 is arranged in to core bar 2.

As shown in fig. 2, the front end of the core rod 2 is provided with the piston 3, the rear part of the core rod 2 is provided with a hard snap ring 21 in a protruding manner, the rear part of the inner side of the outer sleeve 1 is provided with a hard stop buckle 11, when the core rod 2 is pushed forwards, the hard snap ring 21 is in interference fit with the inner side of the outer sleeve 1, and therefore when the core rod 2 is pulled backwards, the hard snap ring 21 and the hard stop buckle 11 of the outer sleeve 1 form a stop position through the hard stop buckle 11.

The inner side of the outer sleeve 1 is provided with an elastic buckle 12, the elastic buckle 12 is obliquely arranged from front to back, the inner side is inclined, the front part of the core rod 2 is convexly provided with a plurality of dosage snap rings, the front ends of the dosage snap rings are provided with inclined planes, the inclined planes are positioned at the outer edges of the dosage snap rings, and the inclined planes are obliquely arranged from the inner side to the outer side and back.

As shown in fig. 3 and 4, a first dose snap ring 22 and a second dose snap ring 23 are protruded from the front part of the core rod 2, the first dose snap ring 22 and the second dose snap ring 23 are arranged at intervals in the front-back direction, and the first dose snap ring 22 and the second dose snap ring 23 can easily pass through when being pulled back to the elastic buckle 12 of the outer sleeve 1; when the first dosage snap ring 22 and the second dosage snap ring 23 are pushed to the elastic buckle 12 of the outer sleeve 1, the first dosage snap ring and the second dosage snap ring cannot pass through easily.

The dosage snap ring can be provided with one or more dosage snap rings according to actual application.

The outer sleeve 1 comprises a needle seat and a rod sleeve which are sequentially connected from front to back, the rod sleeve comprises a front rod sleeve, a connecting sleeve and a rear rod sleeve, the inner diameter of the rear rod sleeve is larger than that of the front rod sleeve, a hard snap ring 21 is in interference fit with the inner side of the rear rod sleeve, a dosage snap ring is in fit with the inner side of the front rod sleeve, the connecting sleeve is of a conical structure, and as shown in fig. 7, a cavity 15 is arranged in the center of the rear end of the needle seat in a concave mode to serve as a low-residue design.

As shown in fig. 5 and 6, the first dose indicator 13 and the second dose indicator 14 are arranged on the outer side of the casing 1, the first dose indicator 13 and the second dose indicator 14 are arranged from front to back at intervals, and when the front end of the first dose snap ring 22 contacts the back end of the elastic buckle 12, the second dose indicator 14 is aligned with the front end of the piston 3.

The first dose identifier 13 and the second dose identifier 14 respectively mark identifiers of specific doses, and at the moment, the operator is prompted that the injector injects a corresponding quantitative liquid; one or more dosage marks of the coat 1 can be set according to actual use, and the marks can be arrows, round points or scale lines.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims

1. The utility model provides a soft locking buckle formula ration precision injector, includes overcoat and core bar, the front end of overcoat is equipped with the needle tubing, the sheath is cup jointed in the needle tubing outside, the inboard of overcoat is arranged in to the core bar, the overcoat includes needle file and rod cover, a serial communication port, the front end of core bar is equipped with the piston, the rear portion protrusion of core bar is equipped with a hard snap ring, the inboard rear portion of overcoat is equipped with firmly ends to detain, the inboard interference fit of hard snap ring and overcoat when the core bar is advanced to push away, the hard snap ring ends with the hardness of overcoat and ends the position when the core bar is drawn backward, the anterior protrusion of core bar is equipped with a plurality of dose snap rings, the inboard of overcoat is equipped with elastic buckle, elastic buckle is by preceding to the inboard setting of hypsokinesis slant, dose snap ring accessible elastic buckle when the core bar is drawn backward, elastic buckle ends the position dose snap ring when the core bar is advanced to push away.

2. The soft stop snap-in quantitative precision injector according to claim 1, wherein the front end of the dose collar is provided with a bevel at the outer edge of the dose collar, said bevel being set back from inside to outside.

3. The soft stop snap-on quantitative precision injector according to claim 1, wherein said stem sleeve comprises a front stem sleeve, a connecting sleeve and a rear stem sleeve, the inner diameter of said rear stem sleeve is larger than the inner diameter of the front stem sleeve, said hard snap ring is in interference fit with the inner side of the rear stem sleeve, and said dosage snap ring is in fit with the inner side of the front stem sleeve.

4. The soft stop snap-on quantitative precision injector of claim 3, wherein a first dose snap ring and a second dose snap ring are protruded from the front of the core rod, and the first dose snap ring and the second dose snap ring are spaced back and forth.

5. The soft stop snap-on precision dosing syringe of claim 4 wherein the outer side of the housing has a first dose indicator and a second dose indicator spaced apart from one another from the front to the back, the second dose indicator being aligned with the front end of the plunger when the front end of the first dose snap ring contacts the back end of the resilient snap.

6. The soft stop buckle type quantitative precision injector according to claim 3, wherein the connecting sleeve is in a conical structure.

7. The soft stop snap-on quantitative precision injector according to claim 3, wherein the central recess at the rear end of the needle holder is provided with a cavity.