CN205307517U

CN205307517U - Syringe that promotion speed is more even

Info

Publication number: CN205307517U
Application number: CN201520991087.3U
Authority: CN
Inventors: 张静; 王丽娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-03
Filing date: 2015-12-03
Publication date: 2016-06-15
Anticipated expiration: 2025-12-03

Abstract

The utility model discloses a syringe that promotion speed is more even, which comprises an outer shell, injection device has been cup jointed to the one end of shell, the other end of shell has cup jointed promotes mainly the pole, and the one end of promoting mainly the pole pass impel mouthful and with set up at the inside connecting device fixed connection of shell, and connecting device keeps away from the one end of promoting mainly the pole and injection device's one end fixed connection, the propulsion snap ring has still been cup jointed on the surface of promoting mainly the pole, advance the snap ring be close to injection device's a side on fixed mounting have a pushing ram, the pushing ram keep away from the one end that impels the snap ring insert the air chamber and with set up at the inside second piston fixed connection of air chamber. The utility model discloses a set up air chamber and pushing ram, it is more even that the messenger promotes mainly pole promotion speed, and set up a plurality of air chambers, makes the gas resistance reinforcing, and it is more even that the messenger promotes mainly the pole promotion, and messenger's liquid exit velocity is also more even, makes injection speed more even, has reduced the influence of injection speed to patient.

Description

The more uniform syringe of a kind of driving velocity

Technical field

This utility model relates to technical field of medical instruments, is specially the more uniform syringe of a kind of driving velocity.

Background technology

Common neoplastic hematologic disorder mainly includes each quasi-leukemia, multiple myeloma and malignant lymphoma. Acute leukemia accounts for the 8th of common cancer, and lymphoma is also in top ten, and sickness rate raises year by year, and the whole sickness rate of multiple myeloma accounts for 10% inside hematologic malignancies. Hesperian statistics are relatively more comprehensive, and this three classes current sickness rate of tumor all comes the top ten of malignant tumor, and in the treatment of neoplastic hematologic disorder, it is necessary to sufferer is carried out transfusion repeatedly and blood test etc. by medical personnel.

But using syringe to sufferer at transfusion and blood test medical personnel, all of process is all artificially carry out, and owing to medical personnel use syringe proficiency different, the speed promoted during injection is very unstable, make the fluctuation of syringe injection speed very big, it is easy to make patient not feel well, the effect of impact treatment, to this it is proposed that the more uniform syringe of a kind of driving velocity.

Utility model content

The purpose of this utility model is in that to provide a kind of driving velocity more uniform syringe, with the problem solving to propose in above-mentioned background technology.

For achieving the above object, this utility model provides following technical scheme: the more uniform syringe of a kind of driving velocity, including shell, one end of described shell is socketed with injection device, the other end of described shell is socketed with primary push rod, and one end of primary push rod is through advancing mouth and fixing with the connecting device being arranged on enclosure being connected, and connecting device is connected away from one end of one end of primary push rod and injection device is fixing, the surface of described primary push rod is also socketed with propelling snap ring, on the one side of injection device, pushing ram it is installed with advancing snap ring, described pushing ram inserts air chamber away from the one end advancing snap ring and fixing with the second piston being arranged on plenum interior is connected, described air chamber is fixedly mounted on the inwall of shell, and described air chamber is away from offering the gas outlet connected with housing exterior on the one side of pushing ram.

Preferably, the quantity of described pushing ram and air chamber is no less than four, and multiple pushing ram is all arranged on propelling snap ring with the form of annular array.

Preferably, described connecting device includes connecting rod, and one end of described connecting rod is fixing with primary push rod to be connected, and the other end of connecting rod is installed with union joint.

Preferably, described injection device includes syringe, the side of syringe is provided with nipple, the inside of described syringe is connected with first piston, and first piston is away from being fixedly connected with time push rod on the one side of nipple, and one end of secondary push rod is run through syringe and fixing with the connecting device being arranged on enclosure is connected.

Preferably, described primary push rod is installed with push handle away from one end of shell, and push handle is generally circular in shape.

Compared with prior art, the beneficial effects of the utility model are: this utility model is by arranging air chamber and pushing ram, the pushing ram speed when advancing is made to be subject to the impact of the gas indoor gas rate of outflow, make the fltting speed of pushing ram restriction primary push rod, make primary push rod driving velocity more uniform, and multiple air chamber is set, air resistance is made to strengthen, primary push rod is made to promote more uniform, be connected device, primary push rod is made to drive time push rod to promote, make liquid output speed also more uniform, make injection speed more uniform, decrease the injection speed impact on patient.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation.

In figure: 1 shell, 2 injection devices, 21 syringes, 22 nipples, 23 push rods, 24 first pistons, 3 primary push rods, 4 connecting devices, 41 connecting rods, 42 union joints, 5 propelling snap ring, 6 pushing rams, 7 air chambers, 8 second pistons, 9 gas outlets, 10 push handle.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments. Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

Refer to Fig. 1, this utility model provides a kind of technical scheme: the more uniform syringe of a kind of driving velocity, including shell 1, one end of shell 1 is socketed with injection device 2, injection device 2 is used for storing medicinal liquid and connecting needle, injection device 2 includes syringe 21, syringe 21 is used for storing medicinal liquid, the side of syringe 21 is provided with nipple 22, the inside of syringe 21 is connected with first piston 24, the inwall of first piston 24 and syringe 21 closely overlaps, and ensure the air-tightness of syringe 21, time push rod 23 is coordinated to promote, the medicinal liquid in syringe 21 is enable to be discharged by nipple 22, and the one side that first piston 24 is away from nipple 22 is fixedly connected with time push rod 23, and one end of secondary push rod 23 runs through syringe 21 and fixing with the connecting device 4 being arranged within shell 1 is connected, connecting device 4 is connected with primary push rod 3 by connecting rod 41, it is connected with time push rod 23 by union joint 42, making primary push rod 3 can pass through connecting device 4 makes time push rod 23 promote, the other end of shell 1 is socketed with primary push rod 3, primary push rod 3 is installed with push handle 10 away from one end of shell 1, and push handle 10 is generally circular in shape, push handle 10 facilitates medical personnel and uses, and one end of primary push rod 3 is through advancing mouth fixing with the connecting device 4 being arranged on shell 1 within to be connected, connecting device 4 makes primary push rod 3 drive time push rod 23 to promote, make liquid output speed also more uniform, make injection speed more uniform, decrease the injection speed impact on patient, connecting device 4 includes connecting rod 41, one end of connecting rod 41 is fixing with primary push rod 3 to be connected, and the other end of connecting rod 41 is installed with union joint 42, and connecting device 4 is connected away from one end of one end of primary push rod 3 and injection device 2 is fixing, the surface of primary push rod 3 is also socketed with propelling snap ring 5, primary push rod 3 promotes to drive and advances snap ring 5 and pushing ram 6 to advance, pushing ram 6 is made to drive gas in the second piston and air chamber 7 to be discharged by gas outlet 9, primary push rod 3 fltting speed is made to be subject to the impact of gas and uniformly advance, on the one side of injection device 2, pushing ram 6 it is installed with advancing snap ring 5, by arranging air chamber 7 and pushing ram 6, the pushing ram 6 speed when advancing is made to be subject in air chamber 7 impact of the gas rate of outflow, pushing ram 6 is made to limit the fltting speed of primary push rod 3, make primary push rod 3 driving velocity more uniform, pushing ram 6 inserts air chamber 7 fixing with the second piston 8 being arranged on air chamber 7 within away from the one end advancing snap ring 5 and is connected, the quantity of pushing ram 6 and air chamber 7 is no less than four, multiple air chamber 7 is set, air resistance is made to strengthen, primary push rod 3 is made to promote more uniform, and multiple pushing ram 6 is all arranged on propelling snap ring 5 with the form of annular array, air chamber 7 is fixedly mounted on the inwall of shell 1, and the one side that air chamber 1 is away from pushing ram 6 offers and the gas outlet 9 of shell 1 ft connection.

Operation principle: when the more uniform syringe of driving velocity uses, primary push rod 3 is pushed ahead, propelling snap ring 5 is made to drive pushing ram 6 and the second piston 8 to promote in air chamber 7, the gas in air chamber 7 is made to discharge, thus producing resistance, the fltting speed of primary push rod 3 being affected, the fltting speed making primary push rod 3 is more uniform, and primary push rod 3 drives connecting device 4 and time push rod 23 to promote forward when promoting, make liquid output speed more uniform.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, being appreciated that when without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, amendment, replacement and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. the more uniform syringe of driving velocity, including shell (1), one end of described shell (1) is socketed with injection device (2), it is characterized in that: the other end of described shell (1) is socketed with primary push rod (3), and one end of primary push rod (3) is connected through propelling mouth the connecting device (4) internal with being arranged on shell (1) are fixing, and connecting device (4) is connected away from one end of one end of primary push rod (3) and injection device (2) is fixing, the surface of described primary push rod (3) is also socketed with propelling snap ring (5), on the one side of injection device (2), it is installed with pushing ram (6) advancing snap ring (5), described pushing ram (6) inserts air chamber (7) away from the one end advancing snap ring (5) and second piston (8) internal with being arranged on air chamber (7) is fixed and be connected, described air chamber (7) is fixedly mounted on the inwall of shell (1), and the one side that described air chamber (1) is away from pushing ram (6) offers the gas outlet (9) with shell (1) ft connection.

2. the more uniform syringe of a kind of driving velocity according to claim 1, it is characterized in that: the quantity of described pushing ram (6) and air chamber (7) is no less than four, and multiple pushing ram (6) is all arranged in propelling snap ring (5) with the form of annular array.

3. the more uniform syringe of a kind of driving velocity according to claim 1, it is characterized in that: described connecting device (4) includes connecting rod (41), one end of described connecting rod (41) is fixing with primary push rod (3) to be connected, and the other end of connecting rod (41) is installed with union joint (42).

4. the more uniform syringe of a kind of driving velocity according to claim 1, it is characterized in that: described injection device (2) includes syringe (21), the side of syringe (21) is provided with nipple (22), the inside of described syringe (21) is connected with first piston (24), and be fixedly connected with time push rod (23) on the one side that first piston (24) is away from nipple (22), and syringe (21) is run through in one end of secondary push rod (23) and the connecting device (4) internal with being arranged on shell (1) is fixed and be connected.

5. the more uniform syringe of a kind of driving velocity according to claim 1, it is characterised in that: described primary push rod (3) is installed with push handle (10) away from one end of shell (1), and push handle (10) is generally circular in shape.