CN222467738U - Double-barrel syringe - Google Patents

Abstract

The utility model discloses a double-cylinder type injector which comprises a first needle cylinder, a second needle cylinder and an adjusting device, wherein the lower end of the first needle cylinder is an infusion port, the upper end of the first needle cylinder is provided with a first liquid storage cylinder, a first piston rod is arranged in the first needle cylinder in a sliding manner from top to bottom, the bottom end of the first needle cylinder is provided with a cavity, the upper end of the cavity is communicated with the first liquid storage cylinder, the lower end of the cavity is communicated with the infusion port, the second needle cylinder is fixedly connected with the first needle cylinder, the upper end of the second needle cylinder is provided with a second liquid storage cylinder, a second piston rod is arranged in the second liquid storage cylinder in a sliding manner from top to bottom, the capacity of the second piston rod is smaller than that of the first liquid storage cylinder, the lower bottom surface of the second liquid storage cylinder is communicated with the cavity, and the adjusting device is arranged in the cavity and is used for adjusting and enabling the infusion port, the first liquid storage cylinder and the second liquid storage cylinder to be communicated with each other. When two different medicaments are required to be compatible in vitro in medical treatment, and the dosages of the two medicaments cannot be measured by using the same injection, two injections are not required to be used respectively, so that the steps can be simplified, and the mixing operation of the medicaments can be directly carried out.

Description

Double-barrel type injector

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a double-barrel type injector.

Background

When the curative effect of one medicine is poor, other medicines are required to be reasonably matched or two effective medicines are matched together, so that the effect of 1+1>2 is obtained, and the compatibility means that more than two medicines are selectively matched for use according to the condition needs and the property of the medicine.

However, when the dose of the compatible medicine cannot be measured by using the same injection, two syringes are required to be used for separate extraction, inconvenient mixing is required to be carried out later, and the compatibility flow becomes troublesome.

Disclosure of utility model

The utility model aims to provide a double-barrel type injector, which can simplify the steps and directly carry out the mixing operation of medicaments when two different medicaments are required to be compatible in vitro in medical treatment and the doses of the two medicaments cannot be measured by using the same injection.

In order to achieve the above object, according to one aspect of the present utility model, the following technical solutions are provided:

a dual barrel syringe comprising:

The lower end of the first needle cylinder is provided with an infusion port, the upper end of the first needle cylinder is provided with a first liquid storage cylinder, a first piston rod is arranged in the first needle cylinder in a sliding manner from top to bottom, the bottom end of the first needle cylinder is provided with a cavity, the upper end of the cavity is communicated with the first liquid storage cylinder, and the lower end of the cavity is communicated with the infusion port;

The second needle cylinder is fixedly connected with the first needle cylinder, the upper end of the second needle cylinder is provided with a second liquid storage cylinder, a second piston rod is arranged in the second liquid storage cylinder in a sliding manner from top to bottom, the capacity of the second piston rod is smaller than that of the first liquid storage cylinder, and the lower bottom surface of the second liquid storage cylinder is communicated with the cavity;

the adjusting device is arranged in the cavity and is used for adjusting and enabling the infusion port, the first liquid storage cylinder and the second liquid storage cylinder to be communicated in pairs.

As a preferable scheme of the double-barrel type injector, the regulating device is a three-way joint, the three-way joint comprises a three-way body and a valve core, an inner groove is formed in the upper top surface of the three-way body and is fixedly arranged in the cavity, a first through groove communicated with the cavity is formed in the first needle cylinder, one end of the valve core is rotatably arranged in the inner groove of the three-way body, and the other end of the valve core extends outwards after penetrating through the first through groove.

As a preferable scheme of the double-barrel type injector, three infusion tubes with outer ends respectively communicated with an infusion port, a first liquid storage barrel and a second liquid storage barrel are arranged on the outer side of the tee joint body, and inner ends of the three infusion tubes are communicated with an inner groove.

As a preferable scheme of the double-barrel injector, the valve core is provided with three connecting ports which are mutually communicated and are positioned in the inner groove, and the end of the valve core, which is positioned at the outer side of the cavity, is provided with a rotary handle.

As a preferable mode of the dual syringe according to the present utility model, the rotary handle is in a T shape, and each side direction of the rotary handle is consistent with three connection ports on the valve core.

As a preferable scheme of the double-barrel type injector, the double-barrel type injector further comprises a pressing plate, wherein the pressing plate is arranged on the upper end faces of the first needle cylinder and the second needle cylinder, the two opposite ends of the pressing plate extend outwards, and a second through groove opposite to the first liquid storage barrel and the second liquid storage barrel is formed.

Compared with the prior art, the utility model has the advantages that when two different medicaments are required to be compatible in vitro in medical treatment and the dosages of the two medicaments cannot be measured by using the same injection, two injections are not required to be used respectively, the steps can be simplified, and the mixing operation of the medicaments can be directly carried out.

Drawings

FIG. 1 is a schematic view showing the overall structure of a dual syringe according to the present utility model;

FIG. 2 is an exploded view of a dual barrel syringe according to the present utility model;

FIG. 3 is a partial cross-sectional view of a dual barrel syringe according to the present utility model;

In the drawing, 100-a first syringe, 110-an infusion port, 120-a first liquid storage cylinder, 130-a first piston rod, 140-a cavity, 150-a first through groove, 200-a second syringe, 210-a second liquid storage cylinder, 220-a second piston rod, 300-an adjusting device, 310-a tee body, 311-an inner groove, 312-an infusion tube, 320-a valve core, 321-a connecting port, 322-a rotary handle and 400-a pressing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a double-barrel type injector, which can simplify the steps and directly carry out the mixing operation of medicaments when two different medicaments are required to be compatible in vitro in medical treatment and the doses of the two medicaments cannot be measured by using the same injection.

Fig. 1-3 show an embodiment of a dual syringe according to the present utility model, referring to fig. 1-3, a dual syringe according to the present embodiment has a main body including a first syringe 100, a second syringe 200, and an adjusting device 300.

The lower extreme of first cylinder 100 is infusion port 110, and the upper end has seted up first reservoir 120, top-down slides in the first cylinder 100 and is provided with first piston rod 130, and cavity 140 has been seted up to the bottom of first cylinder 100, cavity 140 upper end and first reservoir 120 intercommunication, the lower extreme and infusion port 110 intercommunication, first cylinder 100 is last to have seted up the first logical groove 150 with cavity 140 intercommunication.

The second syringe 200 is fixedly connected with the first syringe 100, the upper end of the second syringe is provided with a second liquid storage barrel 210, a second piston rod 220 is slidably arranged in the second liquid storage barrel 210 from top to bottom, the capacity of the second piston rod is smaller than that of the first liquid storage barrel 120, and the lower bottom surface of the second liquid storage barrel 210 is communicated with the cavity 140.

The regulating device 300 is a three-way joint, the three-way joint comprises a three-way body 310 and a valve core 320, an inner groove 311 is formed in the upper top surface of the three-way body 310, the three-way body is fixedly arranged in a cavity 140, three infusion tubes 312 with the outer ends respectively communicated with the infusion port 110, the first liquid storage tube 120 and the second liquid storage tube 210 are arranged on the outer side of the three-way body 310, the inner ends of the three infusion tubes 312 are communicated with the inner groove 311 and are sequentially arranged in a right angle, the lower end of the valve core 320 is rotatably arranged in the inner groove 311 of the three-way body 310, the upper end of the valve core 320 penetrates through the first through groove 150 and then extends outwards, three connecting ports 321 which are mutually communicated are formed in the end of the valve core 320 positioned in the inner groove 311, the end of the valve core 320 positioned on the outer side of the cavity is sequentially in a right angle, the rotary handle 322 is arranged, and the directions of each side of the rotary handle 322 are consistent with the three connecting ports 321 on the valve core 320.

Further, the pressing plate 400 is disposed on the upper end surfaces of the first syringe 100 and the second syringe 200, and the opposite ends thereof extend outwards, and a second through groove opposite to the first liquid storage barrel 120 and the second liquid storage barrel 210 is formed, so that liquid pumping and transfusion operations are facilitated.

Referring to fig. 1 to 3, the dual syringe according to this embodiment is embodied by installing an injection needle at an infusion port 110 during in-vitro compatibility, rotating a rotary handle 322, connecting an infusion tube facing the infusion port 110 with a first reservoir tube 120 through a valve element 320, pulling up a first piston rod 130 to extract a first medicament, discharging gas in the first reservoir tube 120 after the extraction is completed, rotating the rotary handle 322, connecting an infusion tube facing the infusion port 110 with a second reservoir tube 210 through the valve element 320, pulling up a second piston rod 220 at this time, extracting a second medicament, discharging gas in the second reservoir tube 210 after the extraction is completed, connecting an infusion tube facing the first reservoir tube 120 with the second reservoir tube 210 through the valve element 320, pulling out the first piston rod 130, and sucking the medicament in the second reservoir tube 210 into the first reservoir tube 120 when the mixing of medicaments is required.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A double-barreled syringe, comprising: A first syringe (100), the lower end of which is an infusion port (110), and the upper end of which is provided with a first liquid storage cylinder (120); a first piston rod (130) is slidably arranged from top to bottom in the first syringe (100); a cavity (140) is provided at the bottom end of the first syringe (100); the upper end of the cavity (140) is communicated with the first liquid storage cylinder (120), and the lower end is communicated with the infusion port (110); The second syringe (200) is fixedly connected to the first syringe (100), and a second liquid storage cylinder (210) is provided at the upper end thereof. A second piston rod (220) is slidably arranged from top to bottom in the second liquid storage cylinder (210), and the capacity of the second liquid storage cylinder (220) is smaller than that of the first liquid storage cylinder (120). The lower bottom surface of the second liquid storage cylinder (210) is in communication with the cavity (140); The regulating device (300) is disposed in the cavity (140) and regulates and enables the infusion port (110), the first liquid storage cylinder (120), and the second liquid storage cylinder (210) to communicate with each other. 2. A double-barreled syringe according to claim 1, characterized in that: the regulating device (300) is a three-way joint, the three-way joint comprises a three-way body (310) and a valve core (320), the three-way body (310) is provided with an inner groove (311) on the top surface, and is fixedly arranged in the cavity (140), the first syringe (100) is provided with a first through groove (150) connected to the cavity (140), one end of the valve core (320) is rotatably arranged in the inner groove (311) of the three-way body (310), and the other end passes through the first through groove (150) and then extends outward. 3. A double-barreled syringe according to claim 2, characterized in that: three infusion tubes (312) whose outer ends are respectively connected to the infusion port (110), the first liquid storage cylinder (120) and the second liquid storage cylinder (210) are arranged on the outside of the three-way body (310), and the inner ends of the three infusion tubes (312) are connected to the inner groove (311). 4. A double-barreled syringe according to claim 3, characterized in that: three interconnected connection ports (321) are provided on the end of the valve core (320) located in the inner groove (311), and a rotating handle (322) is provided at the end located outside the cavity. 5. A double-barreled syringe according to claim 4, characterized in that: the rotating handle (322) is in a "T" shape, and the directions of its sides are consistent with the three connecting ports (321) on the valve core (320). 6. A double-barrel syringe according to claim 1, characterized in that it also includes a pressing plate (400), wherein the pressing plate (400) is arranged on the upper end surface of the first syringe (100) and the second syringe (200), and its two opposite ends extend outwardly and are provided with a second through groove opposite to the first liquid storage cylinder (120) and the second liquid storage cylinder (210).