Pushing device for short-process pushing pre-loading type medicine feeding instrument
A push device and pre-installed technology, which is applied in the field of dosing instrument, can solve the problems of pollution, inability to realize the aseptic airtightness of vial and dosing instrument, and contact between the dosing cartridge and the outside world, and achieve the effect of shortening the moving distance
Active Publication Date: 2014-07-23
CHONGQING LUMMY PHARMA
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Problems solved by technology
[0004] The drug dosing instrument with the above structure mainly has the following disadvantages in the drug mixing process: when the drug container is stuck into the drug feeding cartridge, the sealing film on the top of the drug feeding cartridge must be torn off first, and the drug feeding cartridge will be broken when it is inserted. Contact with the outside world, thereby causing pollution
And all the closed dosing instruments that appear in the prior art can only realize the airtightness in the mixing process, but cannot realize the "whole process aseptic airtightness" during the docking of the vial and the dosing instrument, the mixing of medicines and the infusion. "
Method used
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[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] Such as figure 1 As shown, the push device used on the short-course push preloaded dosing instrument includes a dosing cartridge 1, a rotating sleeve 4 and guide components. One end of the cartridge 1 is an interface connection end 6, and the inner wall of the other end of the cartridge 1 is provided with a guide groove 8 along the axial direction, and the two ends of the guide groove 8 extend in opposite directions on the circumference of the cartridge 1. For a certain distance, the direction in which the bottom end of the guide groove 8 extends on the circumference of the cartridge 1 is consistent with the rotation direction of the rotating sleeve 4 when pushed. One end of the rotating sleeve 4 protrudes into the other end of the cartridge 1 and is axially fixed and radially rotatable with the cartridge 1, and the rotating s...
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The invention discloses a pushing device for a short-process pushing pre-loading type medicine feeding instrument. The pushing device comprises a medicine feeding cylinder, a rotary sleeve and a guiding part, wherein a guiding slot is arranged on an inner wall of the medicine feeding cylinder along the axial direction; the rotary sleeve is inserted into the medicine feeding cylinder, is axially fixed with and in radial rotary fit with the medicine feeding cylinder and is in sealing fit with the medicine feeding cylinder; a guiding spiral through slot is arranged on a side wall of the rotary sleeve; the guiding part is arranged in the rotary sleeve; a guiding block is arranged on an outer wall of the guiding part; and the guiding block passes through the guiding spiral through slot and is inserted into the guiding slot. When the pushing device is used, a membrane in a connector and the rotary sleeve are used for causing a medicine container and a medicine feeding double-needle to be under a sealing state, so that the absolute sterile effect during transportation and storage processes is achieved; the rotary sleeve is rotated for driving the guiding part to quickly move downward and push the medicine container; an upper needle tip of the medicine feeding double-needle penetrates through a sealing plug on the medicine container and a lower needle tip punctures the membrane in the connector, so that the medicine container is instantly communicated with a transfusion container; and the sterile sealing during the whole processes of transportation, storage, butt-joint, medicine mixing and transfusion is realized.
Description
technical field [0001] The invention relates to a medical device, in particular to a dosing instrument for mixing medicines. Background technique [0002] In order to add the medicine in the medicine container to the solution in the infusion container (i.e. infusion soft bag or infusion soft bottle), and then infuse the mixed solution into patients in clinical institutions such as hospitals. In the prior art, a drug dosing instrument is often used to connect the drug container with the infusion soft bag or the infusion soft bottle. [0003] The dosing instrument in the prior art mainly includes a dosing cylinder and a dosing double needle, the dosing cylinder forms a cup-shaped structure, and the dosing needle is stuck in the dosing barrel through the double needle support seat, in order to seal the dosing channel , there is a septum on the cross-section of the inner wall at the bottom of the cartridge, and a sealing film is provided on the top of the cartridge, one tip of ...
Claims
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IPC IPC(8): A61J1/20
Inventor邱宇李科袁媛李鸿宇黄叶莉
OwnerCHONGQING LUMMY PHARMA