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Liquid medicine transfer adapter

An adapter and liquid medicine technology, applied in medical containers, medicine packaging, packaged food, etc., can solve the problems of liquid medicine contact, increased operation difficulty, difficulty in absorbing medicine liquid, etc.

Active Publication Date: 2020-04-17
SHANXI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When extracting the liquid medicine in the vial, the inside of the vial is gradually in a negative pressure state, making it difficult to absorb the liquid medicine; in addition, during the injection dilution / dissolution stage, due to the internal positive pressure, the liquid may follow the needle when the syringe is pulled out. The moment it is pulled out, it will spray out and cause the risk of contact with the liquid medicine
Since quantitative transfer is usually required in the transfer of medicinal liquid, at present, a matching adjustment device is usually installed on the syringe to achieve single dose adjustment, which further increases the difficulty of operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] see Figure 1-2 , the embodiment of the present application provides a liquid medicine transfer adapter 100 , including a housing 110 , a piercing structure 120 and a dose adjustment mechanism 130 .

[0047] see image 3 , when the liquid medicine transfer adapter 100 is in use, the housing 110 is used to dock with the solution bottle, for example, to be detachably connected with the vial 200 to realize docking with the mouth of the docked vial 200; one end of the piercing structure 120 is used to puncture the vial The vial 200 is capped and inserted into the vial 200, and the other end of the piercing structure 120 is used for accessing the injection device. The liquid medicine transfer adapter 100 is used in conjunction with the vial 200 and the injection device, and is used to transfer liquid into and out of the vial 200 .

[0048] Exemplarily, one end of the housing 110 for docking with the vial 200 has an annular connecting wall, and the opening of the annular co...

no. 2 example

[0076] see Figure 8-9 The embodiment of the present application provides a medical solution transfer adapter 100, which is different from the medical solution transfer adapter 100 provided in the first embodiment in that the driving mode of the dose adjustment mechanism 130 is different.

[0077] In this embodiment, the dose adjustment mechanism 130 further includes a rotating connecting sleeve 136 , and the rotating connecting sleeve 136 is arranged on the end of the adjusting sleeve 134 away from the vial 200 . The liquid circuit puncture needle 122 is arranged coaxially with the adjusting sleeve 134, and the liquid circuit puncture needle 122 and the rotating connection sleeve 136 are rotatably connected through mutually matched protrusions and grooves, so that the adjusting sleeve 134 can be fitted around the air circuit The liquid path puncture needle 122 of the puncture needle 121 rotates. The adjusting sleeve 134 is threadedly connected with the housing 110, and its s...

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Abstract

The invention provides a liquid medicine transfer adapter, and belongs to the field of medical equipment. The liquid medicine transfer adapter comprises a shell, a puncture structure and a dosage adjusting mechanism. The shell is used for being in butt joint with a solution bottle, is internally provided with a gas path channel communicated with the outside, and is provided with a gas path sealingpiece for selectively opening the gas path channel. The puncture structure is used for being inserted into the bottom of the solution bottle and comprises a gas path puncture needle and a liquid pathpuncture needle. The inserting end of the gas path puncture needle is provided with an internal communication gas port, and the other end of the gas path puncture needle is fixedly connected with theshell and is provided with an external communication gas port communicated with the gas path channel. The inserting end of the liquid path puncture needle is provided with an inner communication liquid port, and the other end of the liquid path puncture needle is provided with an outer communication liquid port and sealed through a needleless connecting piece. The liquid path puncture needle andthe gas path puncture needle are parallel and are connected in a sliding and sealed mode in the axial direction. The dosage adjusting mechanism is used for driving the liquid path puncture needle to slide relative to the gas path puncture needle. The problem of unbalanced internal and external air pressure during liquid extraction can be effectively solved, dosage adjustment can be achieved, and liquid medicine can be extracted conveniently and accurately.

Description

technical field [0001] The present application relates to the field of medical equipment, in particular, to a medical fluid transfer adapter. Background technique [0002] In the prior art, during the preparation process of the medicinal solution, it is necessary to inject a solvent such as physiological saline or a radioactive solution into a solution bottle such as a vial, shake and dissolve, and then use a syringe to draw the medicinal solution into the syringe. When extracting the liquid medicine in the vial, the inside of the vial is gradually in a negative pressure state, making it difficult to absorb the liquid medicine; in addition, during the injection dilution / dissolution stage, due to the internal positive pressure, the liquid may follow the needle when the syringe is pulled out. The moment it is pulled out, it will spray out and cause the risk of chemical liquid contact. Since quantitative transfer is usually required in the transfer of medicinal liquid, at pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J1/20A61J1/22
CPCA61J1/201A61J1/2068A61J1/22
Inventor 李思进刘海燕
Owner SHANXI MEDICAL UNIV
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