CN217391170U

CN217391170U - Two-component self-rescue injection device pre-filled with powder and solvent

Info

Publication number: CN217391170U
Application number: CN202123193814.6U
Authority: CN
Inventors: 陈舒航; 周晓雨; 潘少洁; 李培欣; 王雨薇; 黄腊梅
Original assignee: TIANJIN PLASTICS RESEARCH INSTITUTE CO LTD
Current assignee: TIANJIN PLASTICS RESEARCH INSTITUTE CO LTD
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-09-09
Anticipated expiration: 2031-12-16

Abstract

The utility model relates to a two ingredient injection device that saves oneself of pre-installation powder and menstruum, characterized by: the powder-liquid mixing mechanism comprises a pull ring, a connecting plate, two powder-liquid mixing mechanisms, a fixing frame, a check valve, a Y-shaped mixing mechanism, a limiting clamp, a limiting rod and an atomizing head, wherein the two powder-liquid mixing mechanisms are fixed in parallel with the fixing frame through the connecting plate, the powder-liquid mixing mechanism comprises a push-pull rod, a sealing rubber plug, an inner barrel, a rubber piston and an outer barrel, the inner barrel is sleeved inside the outer barrel, the push-pull rod is arranged in the inner barrel, the check valve is connected with one end of the outer barrel, the check valve is connected with the Y-shaped mixing mechanism, the atomizing head is connected with the Y-shaped mixing mechanism, the limiting rod is connected with the fixing frame, the limiting clamp is connected with the limiting rod, the pull ring is installed on one side of the connecting plate, a solvent is installed in the inner barrel cavity, and powder is installed in the outer barrel cavity. The advantages are that: the operation is simple, the mixing of the powder and the solvent is accurate and uniform, the one-hand operation can be realized through the limit control, and the pollution risk possibly brought by secondary solvent and medicine transfer in the clinical powder injection process is avoided.

Description

Two-component self-rescue injection device pre-filled with powder and solvent

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a two ingredient injection device that saves oneself of pre-installation powder and menstruum.

Background

At present, in order to ensure the storage convenience and the drug effect of many blood coagulation injection drugs clinically, a plurality of manufacturers need to prepare the drugs into powder or freeze-drying agents, and in the using process, two injectors are needed to respectively inhale different dissolving solutions, then the different dissolving solutions are respectively injected into different drug powder or freeze-drying agents to be dissolved and mixed, and finally different agents are inhaled into the corresponding injectors to inject the mixed agents for atomization and injection. Because a part of the solvent still remains in the channel in the mixing process, the solid-liquid ratio is inaccurate in the mixing process, and the medicine effect is influenced. Repeated suction of the injector in the clinical use process can cause certain infection risk, and the operation mode has the disadvantages of complicated procedures, long operation time, two-hand operation, inconvenience for self-rescue operation and increased risk in the operation.

Disclosure of Invention

The utility model provides a technical problem who exists among the solution well-known technology and provide an easy and simple to handle, powder and menstruum are thoughtlessly joined in marriage accurate even, have spacing control, and can realize one-hand operation and avoid clinical powder injection in-process because the pollution risk's that secondary transfer menstruum and medicine probably brought pre-installation has the two ingredients injection device of saving oneself of powder and menstruum.

The utility model discloses a technical scheme who takes for solving the technical problem that exists among the well-known technique is:

two ingredient injection device of saving oneself of pre-installation with powder and menstruum, its characterized in that: the powder-liquid mixing mechanism comprises a pull ring, a connecting plate, two powder-liquid mixing mechanisms with the same structure, a fixing frame, a one-way valve, a Y-shaped mixing mechanism, a limiting clamp, a limiting rod and an atomizing head, wherein the two powder-liquid mixing mechanisms are fixed in parallel with the fixing frame through the connecting plate, the powder-liquid mixing mechanism comprises a push-pull rod, a sealing rubber plug, an inner tube, a rubber piston and an outer tube, the inner tube is sleeved with the outer tube, the push-pull rod is arranged in the inner tube, the one-way valve is connected with one end of the outer tube, the one-way valve is connected with the Y-shaped mixing mechanism, the atomizing head is connected with the Y-shaped mixing mechanism, the limiting rod is connected with the fixing frame, the limiting clamp is connected with the limiting rod, the pull ring is installed on one side of the connecting plate, a solvent is installed in the cavity of the inner tube, and powder is installed in the cavity of the outer tube.

The utility model discloses following technical scheme can also be adopted:

preferably, one end of a push-pull rod of the powder-liquid mixing mechanism is provided with a conical round table, the push-pull rod is tightly matched with the rubber piston and the front end of the inner cylinder through the conical round table, and an annular protrusion portion convenient for sealing the tail end of the inner cylinder is formed in the axial direction of the push-pull rod.

Preferably, the connecting plate is provided with a semicircular clamping groove for being embedded and connected with the powder-liquid mixing mechanism, the upper end of the connecting plate is provided with a finger groove convenient to press, and the side surface of the connecting plate is provided with an anti-skid protrusion convenient to control the inner cylinder of the powder-liquid mixing mechanism to do stretching action.

Preferably, the fixed frame is a rectangular frame, one end of the fixed frame is provided with a handheld wing which is connected with the fixed frame into a whole, a pushing guide rail is arranged in the fixed frame, and a limiting rod check groove and an injection head annular fixed frame are arranged on the pushing guide rail.

Preferably, one end of the limiting rod is clamped on the check groove of the fixing frame, and the other end of the limiting rod abuts against the connecting plate to prevent the limiting rod from moving downwards under the action of external force.

Preferably, the one-way valve comprises a luer used for connecting the outer barrel, a duckbill and a conducting connector, wherein the duckbill plays a role in one-way conduction, the duckbill is positioned inside the guiding connector, and the luer is concentrically connected with the guiding connector.

The utility model has the advantages and positive effects that: because the utility model adopts the technical proposal,

when the device is used clinically, powder and a solvent are required to be filled according to the measurement, so that the risk and the operation trouble possibly caused by secondary transfer of the solvent and the medicine in the current clinical powder injection process are avoided, and medical workers firstly lift the connecting plate to enable the inner cylinders of the two powder-liquid mixing mechanisms to be drawn out from the outer cylinder, so that negative pressure is formed inside the outer cylinder. And then, pressing the pull ring to push the push-pull rods of the two powder-liquid mixing mechanisms forwards, so that the solvents in the two inner cylinders rapidly flow out and are respectively mixed with the powder in the two outer cylinders, and then stretching the pull ring to simultaneously realize the restoration of the two push-pull rods. After the two inner cylinders are repeatedly pumped by the push-pull connecting plate to fully mix the liquid medicine, the limiting clamp is opened again to enable the limiting rod to fall down from the check groove. And finally, injecting to ensure that the two liquids are mixed in the Y-shaped mixing device and sprayed out from the spray head, thereby achieving the hemostatic treatment effect. In addition, the solvent and the powder are sealed in the injection device, so that the operation steps and the operation time are reduced, the patient can operate with one hand, the self-rescue efficiency is improved, and the self-rescue process is simplified. The device is safe and simple to use, can be operated by one hand, has simple preparation process and is suitable for large-scale production.

Drawings

Fig. 1 is a schematic diagram of the overall explosion structure of the present invention;

FIG. 2 is a schematic diagram illustrating the overall internal structure of the present invention;

FIG. 3 is a perspective view of the present invention;

FIG. 4 is a schematic view of the powder-liquid mixing mechanism of the present invention;

fig. 5 is a schematic structural view of the push-pull rod of the present invention;

FIG. 6 is a schematic view of the connection plate structure of the present invention;

FIG. 7 is a right side view of FIG. 6;

FIG. 8 is a perspective view of the connecting plate of the present invention;

fig. 9 is a schematic structural view of the check valve of the present invention;

fig. 10 is a schematic structural view of the fixing frame of the present invention;

fig. 11 is a three-dimensional structure view of the fixing frame of the present invention;

fig. 12 is a schematic view of the stop lever structure of the present invention.

In the figure: 1. a pull ring; 2, connecting a plate; 2-1, semicircular clamping grooves; 2-2, finger grooves; 2-3, anti-skid protrusions; 3. a powder-liquid mixing mechanism; 3-1, a push-pull rod; 3-1-1, annular protrusion; 3-1-2, a conical round table; 3-2, sealing the rubber plug; 3-3, inner cylinder; 3-4, solvent; 3-5, rubber piston; 3-6, powder; 3-7, an outer cylinder; 4. a one-way valve; 4-1, luer; 4-2, duckbill; 4-3, conducting the joint; 5. a limiting rod; 6. a limiting clamp; 7. a fixed mount; 7-1, a limiting rod check groove; 7-2, an injection head annular fixing frame; 7-3, pushing the guide rail; 7-4, a check groove; 7-5, a hand-held wing; 8. a Y-type mixing mechanism; 9. a spray head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to figures 1-12 of the drawings,

the two-component self-rescue injection device with the pre-filled powder and the solvent comprises a pull ring 1, a connecting plate 2, two powder-liquid mixing mechanisms 3 with the same structure, a fixing frame 7, a one-way valve 4, a Y-shaped mixing mechanism 8, a limiting clamp 6, a limiting rod 5 and an atomizing head 9, wherein the two powder-liquid mixing mechanisms are fixed in parallel with each other through the pull ring 1, the connecting plate 2 and the fixing frame 7. The powder-liquid mixing mechanism 3 comprises a push-pull rod 3-1, a sealing rubber plug 3-2, an inner cylinder 3-3, a rubber piston 3-5 and an outer cylinder 3-7, wherein the inner cylinder is sleeved in the outer cylinder, the push-pull rod is arranged in the inner cylinder, a one-way valve is connected with one end of the outer cylinder, the other end of the one-way valve is connected with a Y-shaped mixing mechanism, and the Y-shaped mixing mechanism is connected with a spray head. The fixing frame is connected with a limiting rod, the limiting rod is connected with a limiting clamp, and one side of the connecting plate is provided with a pull ring. The inner cylinder cavity is filled with 3-4 menstruum, and the outer cylinder cavity is filled with 3-6 powder. The rear end of the inner cylinder is tightly matched with the annular bulge of the push-pull rod through the sealing rubber plug, and the front end of the inner cylinder and the front end of the push-pull rod are tightly matched with the rubber piston, so that the solvent and the powder can be isolated.

Specifically, one end of a push-pull rod 3-1 of the powder-liquid mixing mechanism 3 is provided with a conical round table 3-1-2, and the push-pull rod is tightly matched with the rubber piston and the front end of the inner cylinder through the conical round table, so that the push-pull rod and the rubber piston can be tightly matched, the solvent cannot leak, and in addition, the situation that the push-pull rod is pushed by non-human factors to cause leakage can be prevented. The axial direction of the push-pull rod is provided with an annular protrusion part 3-1-1 which is convenient for sealing the tail end of the inner cylinder, the annular protrusion part penetrates through the sealing rubber plug to seal the tail end of the inner cylinder, and meanwhile, a tension force can be given to the front end of the push-pull rod to fasten the push-pull rod and the sealing rubber plug.

Specifically, the connecting plate 2 is provided with a semicircular clamping groove 2-1 for embedding and connecting the powder-liquid mixing mechanism, the upper end of the connecting plate is provided with a finger groove 2-2 convenient to press, and the side surface of the connecting plate is provided with an anti-skid protrusion 2-3 convenient to control an inner cylinder of the powder-liquid mixing mechanism to do stretching action. The annular protruding part 3-1-1 on the push-pull rod of the powder-liquid mixing mechanism 3 can be embedded in the semicircular clamping groove 2-1 of the connecting plate 2, and the inner cylinders of the two powder-liquid mixing mechanisms can be controlled to push the mixed medicines into the Y-shaped mixing device 8. The finger groove at the upper end of the connecting plate is convenient to press, and the anti-skidding convex grooves on the side faces of the connecting plate can facilitate medical workers to control the inner cylinders of the two powder-liquid mixing mechanisms to do stretching actions.

Specifically, the fixed frame 7 is a rectangular frame, one end of the fixed frame is provided with a handheld wing 7-5 connected with the fixed frame into a whole, a pushing guide rail 7-3 is arranged in the fixed frame, and a limiting rod check groove 7-1, a check groove 7-4 and an injection head annular fixed frame 7-2 are formed in the pushing guide rail. The limiting rod 5 is inserted into the pushing guide rail 7-3 and then slides to the foremost end of the pushing guide rail to be embedded into the check groove 7-4, so that the limiting rod 5 is fixed. Meanwhile, the tail end of the limiting rod can be clamped on the connecting plate 2 and abuts against the connecting plate so as to prevent the inner cylinder of the powder-liquid mixing mechanism from being compressed by external force to generate displacement in the outer cylinder. The limiting clamp 6 is inserted into the limiting rod check groove 7-1 of the fixing frame 7, so that the limiting rod 5 can be prevented from falling off from the check groove 7-4.

Specifically, one end of the limiting rod is clamped on the check groove of the fixing frame, and the other end of the limiting rod abuts against the connecting plate to prevent the limiting rod from moving downwards under the action of external force.

Specifically, the check valve 4 comprises a luer 4-1 used for connecting the outer cylinder, a duckbill 4-2 and a conducting connector 4-3, wherein the duckbill is positioned in the guiding connector, the luer and the guiding connector are concentrically connected, and powder can be prevented from entering the Y-shaped mixing device 8 before being mixed through the duckbill 4-2 and the conducting connector 4-3.

The utility model discloses a theory of operation does:

after the device is assembled, the medical staff firstly pulls the connecting plate 2 to draw the inner cylinders 3-3 of the two powder-liquid mixing mechanisms 3 out of the outer cylinders 3-7, so that negative pressure is formed inside the outer cylinders. Then, the pull ring 1 is pressed to push the push-pull rods 3-1 of the two powder-liquid mixing mechanisms forwards, so that the solvents 3-4 in the two inner cylinders rapidly flow out and are respectively mixed with the powder 3-6 in the two outer cylinders, and then the pull ring 1 is stretched to simultaneously realize the recovery of the two push-pull rods 3-1. The two inner cylinders 3-3 are repeatedly pumped by the connecting plate to fully mix the liquid medicine, and then the limiting clamp 6 is opened to enable the limiting rod 5 to fall from the check groove 7-4. Finally, the two liquids are mixed in the Y-shaped mixing device 8 and sprayed out from the spray head 9, so that the hemostatic treatment effect is achieved.

When the device is used, the powder and the solvent need to be filled according to the measurement, so that the risk and the operation trouble possibly brought by secondary solvent and medicine transfer in the current clinical powder injection process are avoided, the device is safe and simple to use, can be operated by one hand, has a simple preparation process, and is suitable for large-scale production.

The embodiments described in the drawings are exemplary only and should not be construed as limiting the invention.

Claims

1. A two ingredient injection device that saves oneself of pre-installation with powder and menstruum which characterized in that: the powder-liquid mixing mechanism comprises a pull ring, a connecting plate, two powder-liquid mixing mechanisms with the same structure, a fixing frame, a one-way valve, a Y-shaped mixing mechanism, a limiting clamp, a limiting rod and an atomizing head, wherein the two powder-liquid mixing mechanisms are fixed in parallel with the fixing frame through the connecting plate, the powder-liquid mixing mechanism comprises a push-pull rod, a sealing rubber plug, an inner tube, a rubber piston and an outer tube, the inner tube is sleeved with the outer tube, the push-pull rod is arranged in the inner tube, the one-way valve is connected with one end of the outer tube, the one-way valve is connected with the Y-shaped mixing mechanism, the atomizing head is connected with the Y-shaped mixing mechanism, the limiting rod is arranged on the fixing frame, the limiting clamp is connected with the limiting rod, the pull ring is arranged on one side of the connecting plate, a solvent is arranged in a cavity of the inner tube, and powder is arranged in a cavity of the outer tube.

2. The two-component self-rescue injection device preloaded with powder and solvent according to claim 1, wherein: one end of a push-pull rod of the powder-liquid mixing mechanism is provided with a conical round table, the push-pull rod is tightly matched with the rubber piston and the front end of the inner cylinder through the conical round table, and an annular protrusion part convenient for sealing the tail end of the inner cylinder is arranged in the axial direction of the push-pull rod.

3. The two-component self-rescue injection device preloaded with powder and solvent according to claim 1, characterized in that: the powder-liquid mixing mechanism is characterized in that a semicircular clamping groove used for being connected with the powder-liquid mixing mechanism in an embedded mode is formed in the connecting plate, a finger groove convenient to press is formed in the upper end of the connecting plate, and an anti-skidding bulge convenient for controlling an inner cylinder of the powder-liquid mixing mechanism to do stretching motion is arranged on the side face of the connecting plate.

4. The two-component self-rescue injection device preloaded with powder and solvent according to claim 1, wherein: the fixed frame is a rectangular frame, one end of the fixed frame is provided with a handheld wing which is connected with the fixed frame into a whole, a pushing guide rail is arranged in the fixed frame, and a limiting rod check groove and an injection head annular fixed frame are arranged on the pushing guide rail.

5. The two-component self-rescue injection device preloaded with powder and solvent according to claim 1, characterized in that: one end of the limiting rod is clamped on the check groove of the fixing frame, and the other end of the limiting rod abuts against the connecting plate.

6. The two-component self-rescue injection device preloaded with powder and solvent according to claim 1, wherein: the one-way valve comprises a luer used for connecting the outer barrel, a duckbill and a conducting connector, wherein the duckbill plays a one-way conducting role, the duckbill is positioned in the guiding connector, and the luer is concentrically connected with the guiding connector.