Title:
SELF-VENTING, ANTI-BUBBLE, AUTOMATIC FLUID CHECKING, PRECISION FILTRATION, INFUSION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/188576
Kind Code:
A1
Abstract:
A self-venting, anti-bubble, automatic fluid checking, precision filtration, infusion apparatus, the drip chamber (3) thereof being provided with a self-venting device; the self-venting device comprises a self-venting tube (5) and an air filtration membrane (4); the lower end of the self-venting tube (5) is fixed at the bottom of the drip chamber (3), and is provided with a venting through hole (6) therein for interconnecting the inner cavity of the drip chamber (3) with the external air; the air filtration membrane (4) is fixed at the top of the self-venting tube (5); an anti-bubble device is disposed inside the bottom of the drip chamber; the anti-bubble device is a hollow venting core (9); a liquid inlet groove (8) is provided on the side wall of the venting core (9); the inner cavity of the venting core (9) communicates with a liquid outlet tube (10) at the lower end of the drip chamber (3); the venting core (9), the bottom end of the drip chamber (3), and the liquid outlet tube (10) at the bottom end of the drip chamber (3) employ an integrated structure; a fluid checking device (7) is disposed above the venting core (9). The present invention can be used without inverting or squeezing the drip chamber (3) or closing a flow regulator (11), thus being convenient to operate; the air filtration membrane (4) and the venting through hole (6) can successfully vent air in the drip chamber (3), and the venting core (9) and liquid outlet of the drip chamber (3) and the liquid inlet groove (8) of the venting core (9) prevent generation and accumulation of bubbles, and vent the air in the gas-liquid mixture entering the drip chamber (3).
Inventors:
MENG QINGSONG (CN)
LI SONGHUA (CN)
DING RENWEN (CN)
LI SONGHUA (CN)
DING RENWEN (CN)
Application Number:
PCT/CN2014/090237
Publication Date:
December 17, 2015
Filing Date:
November 04, 2014
Export Citation:
Assignee:
SHINVA ANDE HEALTHCARE APPARATUS CO LTD (CN)
International Classes:
A61M5/38; A61M5/14
Foreign References:
| CN104001243A | 2014-08-27 | |||
| CN203898838U | 2014-10-29 | |||
| CN103301524A | 2013-09-18 | |||
| CN202859776U | 2013-04-10 | |||
| CN102631733A | 2012-08-15 | |||
| CN202161626U | 2012-03-14 | |||
| CN101879340A | 2010-11-10 | |||
| US5423346A | 1995-06-13 |
Attorney, Agent or Firm:
QINGDAO FIRST PATENT & TRADEMARK AGENT CO., LTD (CN)
青岛发思特专利商标代理有限公司 (CN)
青岛发思特专利商标代理有限公司 (CN)
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