CN220778798U

CN220778798U - Double-tube injector

Info

Publication number: CN220778798U
Application number: CN202321584158.9U
Authority: CN
Inventors: 杨晓晓; 见金利; 刘蓓
Original assignee: Lanzhou University
Current assignee: Lanzhou University
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2024-04-16
Anticipated expiration: 2033-06-20

Abstract

The utility model relates to the technical field of medical appliances, and particularly discloses a double-tube syringe, which comprises: the mounting sleeve is provided with two placing openings on one side, the adjusting mechanism is arranged in the mounting sleeve, the adjusting mechanism comprises two racks, a plurality of mounting rings with notches are fixedly arranged on one sides, away from each other, of the two racks, the outer surfaces of the racks and the mounting rings are in sliding connection with the inner surface of the mounting sleeve, a transmission gear is rotatably arranged in the mounting sleeve, and the two racks are meshed with the transmission gear; according to the utility model, through the arrangement of the adjusting mechanism and the limiting mechanism, the needle heads of the two syringes arranged in the mounting sleeve can be kept horizontal or staggered, one needle head protrudes out of the other needle head to retract, and on the premise of saving injection steps and time, different use modes can be changed, and applicable places are wider.

Description

Double-tube injector

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a double-tube syringe.

Background

The syringe is a common medical appliance, and is mainly used for extracting or injecting gas or liquid by a needle, then injecting the extracted substance into a patient, and the syringe is often used singly in daily use, but in some emergency clinical operations, in order to save steps and time, two syringes can be taken and used simultaneously when the syringes containing two medicines need to be injected.

In chinese patent publication No. CN215351261U, a multifunctional double-tube syringe is mentioned, by the above construction, the second syringe is fixed at the first syringe through the fastening plate and the syringe handle, so that the position between the first syringe and the second syringe is fixed, thereby facilitating the doctor to operate two syringes simultaneously with one hand; however, the position between the two syringes cannot be effectively adjusted in the use process of the syringes, and when the syringes need to be sequentially injected, the two needles are easy to be mutually influenced, so that certain limitation exists in use.

Disclosure of Invention

The present utility model is directed to a double syringe for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a dual syringe, comprising:

the mounting sleeve is provided with two placing openings on one side;

the adjusting mechanism is arranged in the mounting sleeve and comprises two racks, one sides of the two racks, which are far away from each other, are fixedly provided with a plurality of mounting rings provided with notches, the outer surfaces of the racks and the mounting rings are in sliding connection with the inner surface of the mounting sleeve, a transmission gear is rotatably arranged in the mounting sleeve, and the two racks are meshed with the transmission gear;

the limiting mechanism is arranged on one side of the mounting sleeve and is connected with the transmission gear;

the pressing mechanism is arranged at the top of the mounting sleeve.

Preferably, the limiting mechanism comprises an adjusting shaft rotatably arranged on one side of the mounting sleeve and an adjusting ring fixedly arranged on one side of the mounting sleeve.

Preferably, one end of the adjusting shaft extends to the inside of the mounting sleeve, one end of the adjusting shaft is fixedly connected with one side of the transmission gear, and a knob is fixedly arranged at the other end of the adjusting shaft.

Preferably, an elastic lug is fixedly arranged in the knob, one side of the elastic lug extends to the outside of the knob, and a plurality of limit grooves are formed in one side of the adjusting ring.

Preferably, the pressing mechanism comprises a pressing column slidably mounted at the top of the mounting sleeve, and an elliptical disk is rotatably mounted at the top of the pressing column.

Preferably, the bottom of the pressing column extends to the inside of the installation sleeve, a spring is fixedly installed at the bottom of the pressing column, and one side of the spring is fixedly connected with the inner surface of the installation sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Through adjustment mechanism and stop gear's setting, the syringe needle of two syringes of messenger's inside installation of installation cover both can keep the level also can be crisscross each other, makes one of them syringe needle outstanding another syringe needle withdraw, under the prerequisite that realizes saving injection step and time, can change different usage patterns, applicable place is more extensive.

(2) Through the setting of pressing mechanism, make it can make at every turn only press a single, also can press two syringes simultaneously, make more convenient when pressing two syringes to make two syringes press the dynamics the same, it is more convenient to use.

Drawings

FIG. 1 is a first external structural schematic diagram of the present utility model;

FIG. 2 is a schematic diagram of a second external structure of the present utility model;

FIG. 3 is a schematic longitudinal cross-sectional view of a first internal structure of the present utility model;

FIG. 4 is a schematic longitudinal section of a second internal structure of the present utility model;

in the figure: 1. a mounting sleeve; 2. a placement port; 3. a rack; 4. a transmission gear; 5. an adjusting shaft; 6. an adjusting ring; 7. a knob; 8. an elastic tab; 9. a limit groove; 10. pressing the column; 11. an oval plate; 12. a spring; 13. and (5) a mounting ring.

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.

Embodiment one:

referring to fig. 1-4, a dual syringe, comprising:

the mounting sleeve 1 is provided with two placing ports 2 on one side of the mounting sleeve 1;

the adjusting mechanism is arranged in the mounting sleeve 1 and comprises two racks 3, one sides, away from each other, of the two racks 3 are fixedly provided with a plurality of mounting rings 13 provided with notches, rubber sheets are arranged in the mounting rings 13, the outer surfaces of the racks 3 and the mounting rings 13 are in sliding connection with the inner surface of the mounting sleeve 1, a transmission gear 4 is rotatably arranged in the mounting sleeve 1, and the two racks 3 are meshed with the transmission gear 4;

the limiting mechanism is arranged on one side of the mounting sleeve 1 and is connected with the transmission gear 4;

the pressing mechanism is arranged at the top of the mounting sleeve 1.

From fig. 1 and fig. 2, the limiting mechanism comprises an adjusting shaft 5 rotatably installed at one side of the installation sleeve 1 and an adjusting ring 6 fixedly installed at one side of the installation sleeve 1, one end of the adjusting shaft 5 extends to the inside of the installation sleeve 1, one end of the adjusting shaft 5 is fixedly connected with one side of the transmission gear 4, a knob 7 is fixedly installed at the other end of the adjusting shaft 5, an elastic lug 8 is fixedly installed in the knob 7, one side of the elastic lug 8 extends to the outside of the knob 7, a plurality of limiting grooves 9 are formed in one side of the adjusting ring 6, and the number of the limiting grooves 9 is three and are respectively arranged at the middle part and the two sides of the adjusting ring 6.

It can be seen from the above that, in the use process, two disposable syringes are pushed into the inside of the mounting ring 13 from the notch of the mounting ring 13 under the same state of keeping the positions, the mounting ring 13 is deformed and then is changed back to original shape, the syringes are fixed in the two mounting rings 13 through the inner rubber sheet, at this time, the processed medicines can be sucked into the two syringes respectively, the pressing positions on one side of the two syringes can be pushed simultaneously through the pressing mechanism, the internal medicines of the two syringes are extruded simultaneously, the knob 7 can be rotated simultaneously, the knob 7 drives the adjusting shaft 5 to rotate simultaneously, the adjusting shaft 5 drives the transmission gear 4 to rotate, the transmission gear 4 drives the two racks 3 and the mounting ring 13 thereon to move simultaneously, one of the racks 3 and the upper mounting ring 13 drives the internal injector to move towards one side of the mounting sleeve 1, the other rack 3 and the upper mounting ring 13 drive the internal injector to move towards the other side of the mounting sleeve 1, so that the two injectors are staggered, the injectors can be used separately for two times, in the rotating process of the knob 7, the elastic lug 8 deforms and can be changed into an original shape when moving to the inside of the limiting groove 9, so that the rotating point of the knob 7 and the adjusting shaft 5 is limited, in the initial state, the elastic lug 8 is positioned in the middle limiting groove 9, the two injectors are positioned at the same position, after rotating, the elastic lug 8 is positioned in one of the limiting grooves 9 at two sides, the positions of the two injectors are staggered, one of the two injectors extends, and the other injector is retracted.

Embodiment two:

referring to fig. 3 and 4, the pressing mechanism includes a pressing column 10 slidably mounted on the top of the mounting sleeve 1, an elliptical disk 11 is rotatably mounted on the top of the pressing column 10, the bottom end of the pressing column 10 extends to the inside of the mounting sleeve 1, a spring 12 is fixedly mounted on the bottom of the pressing column 10, and one side of the spring 12 is fixedly connected with the inner surface of the mounting sleeve 1.

From the above, when the medicine inside two syringes needs to be injected simultaneously, the oval plate 11 can be rotated, and under the tension of the spring 12 to the pressing column 10, the oval plate 11 is contacted with the pressing position of the syringes, so that the two syringes can be driven to be injected simultaneously by pressing the oval plate 11, and when the individual injection is needed, the oval plate 11 is rotated by 90 degrees, so that the oval plate 11 is separated from the pressing positions of the two syringes, and the injection of one of the syringes can be performed individually.

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

1. A dual syringe comprising:

the mounting sleeve (1), one side of the mounting sleeve (1) is provided with two placing ports (2);

the adjusting mechanism is arranged in the mounting sleeve (1), the adjusting mechanism comprises two racks (3), a plurality of mounting rings (13) with notches are fixedly arranged on one sides, away from each other, of the two racks (3), the outer surfaces of the racks (3) and the mounting rings (13) are slidably connected with the inner surface of the mounting sleeve (1), a transmission gear (4) is rotatably arranged in the mounting sleeve (1), and the two racks (3) are meshed with the transmission gear (4);

the limiting mechanism is arranged on one side of the mounting sleeve (1) and is connected with the transmission gear (4);

the pressing mechanism is arranged at the top of the mounting sleeve (1).

2. A double syringe according to claim 1, characterized in that: the limiting mechanism comprises an adjusting shaft (5) rotatably arranged on one side of the mounting sleeve (1) and an adjusting ring (6) fixedly arranged on one side of the mounting sleeve (1).

3. A double syringe according to claim 2, characterized in that: one end of the adjusting shaft (5) extends to the inside of the mounting sleeve (1), one end of the adjusting shaft (5) is fixedly connected with one side of the transmission gear (4), and a knob (7) is fixedly arranged at the other end of the adjusting shaft (5).

4. A double syringe according to claim 3, characterized in that: the inside fixed mounting of knob (7) has elastic lug (8), one side of elastic lug (8) extends to the outside of knob (7), a plurality of spacing grooves (9) have been seted up to one side of adjusting ring (6).

5. A double syringe according to claim 1, characterized in that: the pressing mechanism comprises a pressing column (10) which is slidably arranged at the top of the mounting sleeve (1), and an elliptical disc (11) is rotatably arranged at the top of the pressing column (10).

6. A double syringe according to claim 5, wherein: the bottom of the pressing column (10) extends to the inside of the installation sleeve (1), a spring (12) is fixedly installed at the bottom of the pressing column (10), and one side of the spring (12) is fixedly connected with the inner surface of the installation sleeve (1).