CN2604185Y - Hand-operating continuous negative pressure suction device - Google Patents

Abstract

The utility model discloses a manual continuous negative pressure suction which consists of a suction rubber tube 1, a negative pressure bottle 2 and an air exhaust device 3. The air exhaust device 3 consists of a piston cylinder 4, a piston 5, a piston rod 6, a push and pull handle 7, a spring 8 and four uni-directional ball valves a # - [1], a # - [2], b # - [1] and b # - [2]. The push and pull handle 7 consists of an inner and outer arm connection structure. The uni-directional ball valves b # - [1] and b # - [2] are arranged at both ends of piston cylinder 4 upper wall. And then the two ball valves are connected with the negative pressure bottle 2 by a three-way tube. the uni-directional ball valves a # - [1] and a # - [2] are arranged at both end surfaces of piston cylinder 4. The manual continuous negative pressure suction provides the advantages of simple structure, convenient carrying, low using cost, strong suction force, high suction speed and continuous suction.

Description

Manual continuous negative pressure suction pump

Technical field

This utility model relates to a kind of medical apparatus and instruments, especially a kind of manual continuous negative pressure suction pump.

Background technology

In clinical practice, a lot of treatment of diseases or operation all need vacuum suction, and as the asthmatic patient of acute attack, patient such as pneumothorax, empyema, hydroabdomen or breast, abdomen, pelvic cavity break, or in the induced labor abortion, all might use vacuum extractor.The vacuum extractor that uses is mostly by attracting sebific duct at present, negative pressure bottle and air extractor constitute, attract the sebific duct front end to be provided with and attract the hole, the negative pressure bottle inner bottom part is inserted in the rear end, the liquid that attracts is entered in the negative pressure bottle, its air extractor has uses pump bowl, what also have uses pumping balloon, and what also have uses air pump, adopts air pump that motor and power supply must be arranged, so just, increased use cost, also be subjected to the restriction of electricity, not portable, adopt pump bowl or pumping balloon, though it is simple in structure, but can not take out continuously, attraction speed is slow, captivation is little, inconvenience uses manpower also more.

Summary of the invention

The purpose of this utility model be to provide a kind of not only simple in structure, be easy to carry, easy to use, usage charges are low, and captivation is big, attraction speed is fast, the manual continuous negative pressure suction pump that can attract continuously.

For reaching above purpose, the technical scheme that this utility model adopted is: this manual continuous negative pressure suction pump, by attracting sebific duct, negative pressure bottle and air extractor to constitute, attract the front end of sebific duct to be provided with the attraction hole, the negative pressure bottle inner bottom part is inserted in the rear end, and its air extractor is by piston cylinder, piston, piston rod, drawing handle, spring and four non-return valve a ₁, a ₂, b ₁, b ₂Constitute, drawing handle is that inside and outside arm connects and composes, and the upper end of inner arm is fixed on the piston cylinder, and use bolting, the upper end of outer arm is connected with the piston rod outer end by turning cylinder, and spring is supported on the inside and outside arm middle part of drawing handle, when holding drawing handle with a firm grip, push away in the piston, the spring compression, when unclamping drawing handle, spring reset, piston draws outward, and the upper wall two ends of piston cylinder are respectively equipped with non-return valve b ₁, b ₂, and be communicated with in tee T and the negative pressure bottle, on two end faces of piston cylinder, be respectively equipped with non-return valve a ₁, a ₂, when piston inwardly promotes, non-return valve a ₁Valve closing, non-return valve b ₁Valve opening, non-return valve a ₂Valve opening, non-return valve b ₂Valve closing makes the intracavity of the piston cylinder on piston right side form negative pressure, and the gas in the negative pressure bottle is through tee T and non-return valve b ₁Valve enters the intracavity of the piston cylinder on piston right side, and the gas pressurized in piston left side is from non-return valve a ₂Valve is discharged; When drawing outside the piston, non-return valve a ₂Valve closing, non-return valve b ₂Valve opening, non-return valve a ₁Valve opening, non-return valve b ₁Valve closing makes the intracavity of the piston cylinder in piston left side form negative pressure, and the gas in the negative pressure bottle is through tee T and non-return valve b ₂Valve enters the intracavity of the piston cylinder in piston left side, and the gas pressurized on piston right side is from non-return valve a ₁Valve is discharged, and successive like this compression or unclamp drawing handle can realize successive to the attraction in the negative pressure bottle; The top of negative pressure bottle is inserted in the termination of tee T, prevents to insert low meeting with in the liquid sucker tube in the negative pressure bottle, is also fixing the negative pressure bottle fixed cover on the inner arm of drawing handle, and negative pressure bottle is enclosed within the mouth of negative pressure bottle fixed cover, and fixes with fastening bolt.

The beneficial effects of the utility model are: compare with the vacuum extractor of present use, and not only simple in structure, easy to carry, easy to use, usage charges are low, and also captivation is big, fast, the continuable attraction of attraction speed.

Description of drawings

Fig. 1 looks sketch map for this utility model structure master.

Fig. 2 is this utility model office cross-sectional schematic.

The specific embodiment

Make this utility model with reference to accompanying drawing 1,2.This manual continuous negative pressure suction pump, by attracting sebific duct 1, negative pressure bottle 2 and air extractor 3 to constitute, attract the front end of sebific duct 1 to be provided with attraction hole 11, negative pressure bottle 2 inner bottom parts are inserted in the rear end, and its air extractor 3 is by piston cylinder 4, piston 5, piston rod 6, drawing handle 7, spring 8 and four non-return valve a ₁, a ₂, b ₁, b ₂Constitute, drawing handle 7 is connected and composed by inside and outside arm, and the upper end of inner arm is fixed on the piston cylinder 4, and the upper end of outer arm is connected with piston rod 6 outer ends by turning cylinder 9, spring 8 is supported on the inside and outside arm middle part of drawing handle 7, when holding drawing handle 7 with a firm grip, push away spring 8 compressions in the piston 5, when unclamping drawing handle 7, spring 8 resets, piston 5 outer drawing, and the upper wall two ends of piston cylinder 4 are respectively equipped with non-return valve b ₁, b ₂, and, on two end faces of piston cylinder 4, be respectively equipped with non-return valve a with tee T 10 and 2 interior connections of negative pressure bottle ₁, a ₂, when piston 5 inwardly promotes, non-return valve a ₁Valve closing, non-return valve b ₁Valve opening, non-return valve a ₂Valve opening, non-return valve b ₂Valve closing makes the intracavity of the piston cylinder 4 on piston 5 right sides form negative pressure, and the gas in the negative pressure bottle 2 is through tee T 10 and non-return valve b ₁Valve enters the intracavity of the piston cylinder 4 on piston 5 right sides, and the gas pressurized in piston 5 left sides is from non-return valve a ₂Valve is discharged; When drawing outside the piston 5, non-return valve a ₂Valve closing, non-return valve b ₂Valve opening, non-return valve a1 valve opening, non-return valve b ₁Valve closing makes the intracavity of the piston cylinder 4 in piston 5 left sides form negative pressure, and the gas in the negative pressure bottle 2 enters the intracavity of the piston cylinder 4 in piston 5 left sides through tee T 10 and non-return valve b2 valve, and the gas pressurized on piston 5 right sides is from non-return valve a ₁Valve is discharged, and successive like this compression or unclamp drawing handle 7 can realize successive to the attraction in the negative pressure bottle 2; The top of negative pressure bottle 2 is inserted in the termination of tee T 10, prevent to insert low meeting with in the liquid sucker tube 4 in the negative pressure bottle 2, also fixing negative pressure bottle fixed cover 12 on the inner arm of drawing handle 7, negative pressure bottle 2 is enclosed within the mouth of negative pressure bottle fixed cover 12, and fixing with fastening bolt 13.

Claims (2)

1, a kind of manual continuous negative pressure suction pump, by attracting sebific duct (1), negative pressure bottle (2) and air extractor (3) to constitute, attract the front end of sebific duct (1) to be provided with attraction hole (11), attract the rear end of sebific duct (1) to insert negative pressure bottle (2) inner bottom part, it is characterized in that air extractor (3) is by piston cylinder (4), piston (5), piston rod (6), drawing handle (7), spring (8) and four non-return valve a ₁, a ₂, b ₁, b ₂Constitute, drawing handle (7) connects and composes for inside and outside arm, the upper end of inner arm is fixed on the piston cylinder (4), the upper end of outer arm is connected with piston rod (6) outer end by turning cylinder (9), spring (8) is supported on the inside and outside arm middle part of drawing handle (7), and non-return valve b is established at the upper wall two ends of piston cylinder (4) respectively ₁, b ₂, and be communicated with in tee T (10) and the negative pressure bottle (2), on two end faces of piston cylinder (4), be respectively equipped with non-return valve a ₁, a ₂

2, manual continuous negative pressure suction pump according to claim 1, the top that it is characterized in that the termination insertion negative pressure bottle (2) of described tee T (10), the also fixing negative pressure bottle fixed cover (12) of going up on the inner arm of drawing handle (7), negative pressure bottle (2) is enclosed within the mouth of negative pressure bottle fixed cover (12), and fixing with fastening bolt (13).

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