CN218636424U

CN218636424U - Double-combination medicine mixing injector

Info

Publication number: CN218636424U
Application number: CN202221619557.XU
Authority: CN
Inventors: 夏海影; 潘震
Original assignee: Shanghai Ruining Biotechnology Co ltd
Current assignee: Shanghai Ruining Biotechnology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-03-17
Anticipated expiration: 2032-06-27

Abstract

The utility model relates to a duplex medicine mixing injector, which is characterized by comprising two injection needle cylinders and a cylinder type mixer; the injection needle cylinder is communicated with the cylinder type mixer through a three-way pipe; a dynamic mixing part and a static mixing part are fixedly arranged in the cylindrical mixer in sequence; the dynamic mixing part comprises at least one spiral fan blade; the static mixing part is a plurality of groups of spiral guide vanes fixedly arranged on the inner wall of the cylindrical mixer. The utility model discloses a diversion trench, the screen cloth, the gradual mixing of mixing stage by stage of the static mixture of dynamic mixing provides sufficient space and carries out the double-component intensive mixing, and the using-way is simple and convenient directly perceived, can be suitable for the condition that two kinds of different viscosity medicines implanted the injection simultaneously better, stable in structure, and work efficiency is high.

Description

Double-combination medicine mixing injector

Technical Field

The utility model relates to a pair mixes medicine syringe belongs to syringe technical field.

Background

With the continuous development of modern medical technology, the selection of medical instruments is more and more advanced, the product structure is continuously adjusted, and the functions are more diversified. Clinically, the syringe is widely used for dissolving and dispensing medicines, so that the direct contact between the liquid medicine and the outside air in the transfer process is avoided.

The injectors used at present are mainly single-barrel injectors, and with the continuous development of treatment means in the medical industry, the clinical requirement of double-component liquid mixing is increasing day by day. The duplex medicine mixer commonly used in the market at present mainly comprises an injector, a duplex frame and a fixed support. The two-component solution is mixed at the nozzle of the injector by the pushing action of the injector, and the two components are fully mixed because of insufficient space, so that the liquid injected into the tissue is not completely and uniformly mixed, and finally the treatment effect cannot be achieved. In addition, during the pushing process of the injector, the liquid pressure can also act against the push rod, and when the pushing process is too fast, the bayonet at the injector and the spray head can be broken, so that the medicine can leak, and adverse effects can be caused.

Patent document CN 216124836U discloses a double-combination medicine mixer for mixing medicine uniformly. The double-frame assembly comprises a fixing frame, a fixing belt, a seat sleeve, a three-way connecting piece and a spiral medicine mixing rod, wherein a channel for the rotary flow of liquid medicine is formed between a flow guide thread of the spiral medicine mixing rod and the inner wall of a medicine mixing channel, so that the mixed liquid medicine after preliminary mixing flows in the channel and is continuously mixed. The spiral medicine mixing rod has a limited design mixing effect, and is often pushed out of an injection medicine mixing channel without uniform mixing when two kinds of liquid with large viscosity difference or both viscosities are mixed.

Disclosure of Invention

The utility model discloses aim at: aiming at the problems in the prior art, the dual-connection medicine mixing injector with good mixing effect and high efficiency is disclosed, and the uniform mixing and synchronous injection of the two-component liquid medicine are realized.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a duplex medicine mixing injector comprises two injection syringes and a barrel type mixer; the injection needle cylinder is communicated with the cylinder type mixer through a three-way pipe; a dynamic mixing part and a static mixing part are fixedly arranged in the cylindrical mixer in sequence; the dynamic mixing member comprises at least one helical blade (freely rotatable); the static mixing part is a plurality of groups of spiral guide vanes fixedly arranged on the inner wall of the cylindrical mixer.

The utility model discloses dual-combination medicine mixing injector, the double-component liquid medicine is injected through two injection cylinder and is premixed at the three-way pipe, mixes the back in advance and pass through dynamic mixing spare and static mixing spare in proper order at the cartridge type blender, has improved the homogeneity of mixing greatly, is applicable to different viscidity fluid mixture, and the liquid medicine is injected the in-process liquid and is formed pressure to the blade of helical blade for helical blade free rotation, rotatory blade cutting, shearing and remixing liquid medicine make the liquid medicine preliminary mixing. The mixed liquid is further cut and sheared by the spiral flow deflector of the static mixed part, so that a better mixing effect is achieved.

Preferably, the central shaft of the spiral fan blade is fixed in the cylindrical mixer along the axial central line of the cylindrical mixer and is arranged between the three-way pipe and the static mixing piece. Preferably fixedly arranged at the joint of the barrel type mixer and the tee pipe.

Preferably, the number of the blades of the spiral fan blade is not less than two, and the blades are symmetrically arranged. The number of the spiral fan blades is 1-3.

More preferably, the helical fan blades are impellers or rotors with helical blades. The spiral sheet is in a spiral belt shape.

More preferably, the spiral guide vane is at least two curved baffle plates with opposite spiral directions (left/right or right/left) and staggered front and back by 90 degrees.

A specific example. The number of the baffle plates is 2-5.

Preferably, the tee pipe is internally provided with a curved diversion trench.

Preferably, a mesh part is arranged at the joint of the three-way pipe and the cylindrical mixer, and the liquid medicine is cut by meshes when passing through the mesh part before entering the cylindrical mixer, so that the liquid medicine with viscosity is dispersed into a plurality of strands of fluid, and the uniform mixing of the liquid is facilitated.

In a preferred embodiment of the present invention, the syringe has a support member; the supporting piece is a double-linked frame of the injection needle cylinder; the two sides of the duplex frame are provided with oblique angle brackets, so that the supporting pieces can be conveniently placed. Preferably, the bevel angle bracket can be turned by 360 degrees, and the height of the supporting piece can be adjusted by adjusting the angle when the bevel angle bracket is used.

In a preferred scheme of the utility model, the supporting piece is fixedly connected with the three-way pipe through a fixing piece; the fixing piece is of a pull rod structure with at least one eyelet, and the double-link frame is provided with a protrusion fixing structure corresponding to the eyelet. By adopting the structure, the connection between the injection syringe and the barrel type mixer is further enhanced, and the accidents of medicament leakage caused by falling off of accessories due to overlarge pressure are prevented.

Preferably, both syringes have a plunger holder;

more preferably, the push rod fixer is of a T-shaped structure and comprises a cross rod and a vertical rod, wherein the cross rod is fixedly connected with the tail end of the push rod of the injection syringe; the vertical rod is in limit movable connection with the duplex frame, for example, the duplex frame is provided with a hole channel corresponding to the vertical rod, the vertical rod is inserted into the hole channel to form limit and detachable connection, and the stability of injection is improved;

more preferably, the components are in communication with one another via luer fittings.

The utility model discloses dual medicine mixing syringe has following advantage: the utility model discloses a dynamic mixing spare and static mixing spare's stage mixing mode can show that it is high to improve mixing efficiency, mixes effectually. And further, the liquid is effectively cut and dispersed before mixing through the diversion trenches and the net-shaped piece, so that the mixing effect is enhanced. The mixing device is particularly suitable for uniformly mixing two liquids with large viscosity or large viscosity difference. The utility model discloses can realize that two kinds of different viscosity medicines promote in step, quick mixing, evenly implant the injection in two injection syringe, stable in structure, work efficiency is high.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of a main structure of embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a cartridge mixer according to embodiment 1 of the present invention.

FIG. 3 is a schematic view of the structure of the tee joint and the fixing member according to embodiment 1 of the present invention

Fig. 4 is a schematic structural view of a dynamic mixing element according to embodiment 1 of the present invention.

Fig. 5 is a schematic structural view of a static mixing element according to embodiment 1 of the present invention.

Detailed Description

Example 1

As shown in fig. 1-4, the dual-mixing injector of the present embodiment includes two injection syringes 1 and a barrel mixer 2; the injection needle cylinder 1 is communicated with the cylinder type mixer 2 through a three-way pipe 3; a dynamic mixing part 4 and a static mixing part 5 are sequentially and fixedly arranged in the cylindrical mixer 2; the dynamic mixing member 4 comprises at least one helical fan blade 12; the static mixing part 5 is a plurality of groups of spiral guide vanes 13 fixedly arranged on the inner wall of the cylindrical mixer 2.

The central shaft of the spiral fan blade 12 is fixed in the cylindrical mixer 2 along the axial central line of the cylindrical mixer 2 and is arranged between the three-way pipe 3 and the static mixing piece 5. Is fixedly arranged at the joint of the cylindrical mixer 2 and the three-way pipe 3.

The number of the blades of the spiral fan blade 12 is not less than two, and the blades are symmetrically arranged. The number of the spiral fan blades 12 is 1 to 3.

The helical fan blades 12 are impellers or rotors having helical blades. The spiral sheet is in a spiral belt shape.

The spiral guide vanes 13 are at least two curved baffle plates with opposite spiral directions (left/right or right/left) and staggered front and back by 90 degrees.

The number of the baffle plates is 2-5.

The three-way pipe 3 is internally provided with a curve diversion trench.

The mesh 6 is arranged at the joint of the three-way pipe 3 and the cylindrical mixer 2, and the liquid medicine is cut by meshes when passing through the mesh 6 before entering the cylindrical mixer 2, so that the liquid medicine with viscosity is dispersed into multiple strands of fluid, and the uniform mixing of the liquid is facilitated.

The syringe 1 has a support 7; the supporting piece 7 is a double-linked frame of the injection needle cylinder; the two sides of the duplex frame are provided with oblique angle brackets 8, which is convenient for the supporting piece 7 to be placed on the operation table surface, so that the needle heads are upward.

The bevel bracket 8 can be turned by 360 degrees, and the height of the supporting part 7 can be adjusted by adjusting the angle when in use.

In a preferred scheme of the utility model, the supporting piece 7 is fixedly connected with the three-way pipe 3 through a fixing piece 9; the fixing piece 9 is a pull rod structure with at least one eyelet, and the double-link frame is provided with a protrusion fixing structure corresponding to the eyelet. By adopting the structure, the connection between the injection syringe 1 and the barrel type mixer 2 is further enhanced, and the accidents of medicament leakage caused by falling of accessories due to overlarge pressure are prevented.

Both syringes have a plunger holder 10;

the push rod fixer 10 is of a T-shaped structure and comprises a cross rod and a vertical rod, wherein the cross rod is fixedly connected with the tail end of a push rod of the injection syringe 1; the vertical rod is in limit movable connection with the duplex frame, for example, the duplex frame is provided with a pore channel corresponding to the vertical rod, the vertical rod is inserted into the pore channel to form limit and detachable connection, and the stability of pushing injection is improved;

the parts are communicated through a luer connector 11.

The specific use process of this embodiment is as follows:

when using, promote push rod fixer 10, 1 synchronous promotion in two injection syringes, the double-component liquid medicine is injected through injection syringe 1 and is premixed under the effect of the curve guiding gutter and the network 6 of three-way pipe 3, after premixing in proper order through dynamic mixing spare 4 and static mixing spare 5 at cartridge type blender 2, the liquid medicine is injected the in-process liquid and is formed pressure to the blade of helical fan blade 12, make helical fan blade 12 free rotation, rotatory blade cutting, cut and the remixing liquid medicine, make the liquid medicine primary mixing. The mixed liquid is further cut and sheared by the spiral guide vane 13 of the static mixed part 5, so that a better mixing effect is achieved. When the injector is used, the bevel angle adjusting bracket 8 is adjusted to incline and place the needle head upwards, so that medical staff can conveniently place the injector on an operation table after extracting liquid medicine.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. A double-combination medicine mixing injector is characterized by comprising two injection needle cylinders and a cylinder type mixer; the injection needle cylinder is communicated with the cylinder type mixer through a three-way pipe; a dynamic mixing part and a static mixing part are fixedly arranged in the cylindrical mixer in sequence; the dynamic mixing part comprises at least one spiral fan blade; the static mixing part is a plurality of groups of spiral guide vanes fixedly arranged on the inner wall of the cylindrical mixer.

2. The dual mix syringe of claim 1 wherein the central axis of the helical blade is fixed within the barrel mixer along the axial centerline of the barrel mixer, between the tee and the static mixer.

3. The dual mix injector of claim 1, wherein the number of blades of the helical fan is not less than two.

4. The dual drug mixing syringe of claim 1 wherein the helical baffles are at least two curved baffles with opposite helical directions and 90 degrees offset back and forth.

5. The dual-mix syringe of claim 1 having a curvilinear flow-directing groove within the tee.

6. The dual-mix syringe of claim 1 wherein a mesh is provided at the junction of the tee and the barrel mixer.

7. The dual mix injector of claim 1, wherein said syringe barrel has a support; the support piece is a double-linked frame of the injection needle cylinder; oblique angle brackets are arranged on two sides of the duplex bracket.

8. The dual-combination drug-mixing syringe of claim 7, wherein the support member is fixedly connected to the tee by a fixing member; the fixing piece is of a pull rod structure with at least one eyelet, and the double-linkage frame is provided with a protruding fixing structure corresponding to the eyelet.

9. The dual mix syringe of claim 1, wherein the two syringes have ram holders.

10. The dual mix injector of claim 9, wherein the pushrod holder is a T-shaped structure comprising a cross bar and a vertical bar; the cross rod is fixedly connected with the tail end of a push rod of the injection syringe, and the vertical rod is movably connected with the double-link bracket in a limiting way.