CN2710648Y - Negative pressure drainage thoracic puncture needle - Google Patents

Abstract

The utility model relates to a negative pressure drainage thoracic puncture needle, which belongs to the drainage thoracic puncture needle, comprising a needle head. A three-way valve is connected with the rear part of the needle head, and one end of the three-way valve is connected with a flexible glue plug through a plastic pipe; the other end of the three-way valve is connected with a negative pressure drainage device through a flexible pipe and a flexible pipe control switch; the negative pressure drainage device is provided with a negative pressure drainage bottle which is a columnar bottle, the peripheral wall of the negative pressure drainage bottle is a folding compression wall, one end of the negative pressure drainage bottle is provided with a bottle port on which a bottle cap is provided, the flexible pipe enters in the bottle through the bottle cap, and the bottle cap is also connected with a negative pressure forcing pipe whose intermediate section is connected with a forcing switch; the end part of the negative pressure forcing pipe is connected with the exterior plug of the drainage bottle, the side of the negative pressure drainage bottle is connected with a drainage meter regulator which is composed of an upper half part and a lower half part which are all bar shapes, a plurality of columnar position convexes are arranged on the bar shape of the upper half part, and a position hole is arranged on the bar shape of the lower half part. The drainage thoracic puncture needle is a sealed structure, the puncture drawing liquid process has no external pollution, and the utility model has simple structure, low cost and simple technology.

Description

Automatic negative-pressure drain thoracic-puncture needle

Technical field

This utility model relates to a kind of medical apparatus and instruments when treating hydrothorax, pneumothorax, particularly a kind of automatic negative-pressure drain thoracic-puncture needle.

Background technology

When treating hydrothorax, pneumothorax in the hospital, be extensive use of thoracic-puncture needle, thoracic-puncture needle is a 16--20 medical needle, is connected with rubber tube at the syringe needle tail end; Some is connected with three-way valve between syringe needle and rubber tube.Some are also arranged at present through various improved thoracic-puncture needles, what have is designed to the trocar with it; What have installs check valve additional at backshank, built-in spring sealed circle etc.; The design that has complicated needle fixture; Change wire tip profile that has or the like; but these improvement mostly are and have done various improvement on syringe needles; become complex structure, complex manufacturingization, cost of thoracic-puncture needle increased greatly, and usually also will use syringe drawing liquid repeatedly when using, can not carry out automatic drawing liquid.

Summary of the invention

The purpose of this utility model is will provide a kind of to open the drainage tube switch after puncturing successfully, can carry out automatic drawing liquid, reaches the automatic negative-pressure drain thoracic-puncture needle that predetermined drawing liquid amount can stop voluntarily.

The purpose of this utility model is achieved in that this drain thoracic-puncture needle has a syringe needle, and the syringe needle rear portion is connected with three-way valve, and three-way valve one end is connected with the flexible glue plug by plastic tube; The other end is connected with depression drainage device with the flexible pipe gauge tap by flexible pipe.

Depression drainage device has a negative pressure drainage vessel, negative pressure drainage vessel is a column type bottle, the wall of periphery is folding compress wall, end at negative pressure drainage vessel has a bottleneck, bottle cap is arranged on the bottleneck, flexible pipe enters in the bottle by bottle cap, also is connected with the negative pressure compression tube on bottle cap, is connected with to add at the middle part of negative pressure compression tube to compress switch; Be connected with drainage bottle collar extension plug in the end, the negative pressure drainage vessel side is connected with the drain batcher, and the drain batcher is made of the first half and Lower Half, and the first half and Lower Half are stripe shape, on the stripe shape of the first half, there are a plurality of cylindrical location protruding, on the stripe shape of Lower Half locating hole arranged.

Beneficial effect: owing to adopt such scheme, the rear portion of this utility model syringe needle is connected with three-way valve, connects plastic tube behind the three-way valve and negative pressure compression tube collar extension can be combined closely with ordinary syringe; Negative pressure drainage vessel is that plastics are made peripheral collapsible compression-type bottle, be connected with the drain batcher in the negative pressure drainage vessel both sides, open the drainage tube switch after puncturing successfully, can carry out automatic drawing liquid, reaching predetermined drawing liquid amount can stop voluntarily, has reached the purpose of this utility model.This utility model is a closed structure, and the tapping process is stopped outside contamination, and is simple in structure, with low cost, technology is simple, can be mass-produced, and is convenient to popularize, and operates extremely easy, puncture and successfully open the drainage tube switch, drawing liquid can carry out automatically, and reaching predetermined drawing liquid amount can stop voluntarily.

Description of drawings

Fig. 1 is the structure chart of automatic negative-pressure drain thoracic-puncture needle.

The specific embodiment

Embodiment 1: this drain thoracic-puncture needle has a syringe needle 1, and syringe needle 1 rear portion is connected with three-way valve 2, and three-way valve 2 one ends are connected with flexible glue plug 4 by plastic tube 3; The other end is connected with depression drainage device with flexible pipe gauge tap 6 by flexible pipe 5.

Depression drainage device has a negative pressure drainage vessel 7, negative pressure drainage vessel 7 is a column type bottle, the wall of periphery is folding compress wall, end at negative pressure drainage vessel 7 has a bottleneck, bottle cap is arranged on the bottleneck, flexible pipe 5 enters in the bottle by bottle cap, also is connected with negative pressure compression tube 10 on bottle cap, is connected with to add at the middle part of negative pressure compression tube 10 to compress switch 11; Be connected with drainage bottle collar extension plug 12 in the end, negative pressure drainage vessel 7 sides are connected with the drain batcher, and the drain batcher is made of the first half 8 and Lower Half 9, and the first half 8 and Lower Half 9 are stripe shape, on the stripe shape of the first half 8, there are a plurality of location protruding, on the stripe shape of Lower Half 9 locating hole arranged.

Automatic negative-pressure drain thoracic-puncture needle comprises that syringe needle 1 is the 16--20 syringe needle, and for thoracentesis usefulness, the syringe needle rear portion connects three-way valve 2, can control flow direction plastic tube 3 that is drained by syringe needle 1 or the flexible pipe 5 that connects drainage bottle.Plastic tube 3 is one to be connected in three-way valve rear end short tube, can connect when syringe feeds to the intrathoracic injection drug irrigation and use; Also can be used to use when chemical examination is looked in the diagnostic tapping censorship.Flexible glue plug 4 is connected in plastic tube 3 collar extensions, seals collar extension at ordinary times, even the three-way valve maloperation also can be avoided the air admission thoracic cavity.Flexible pipe 5 connects three-way valve and negative pressure drainage vessel, the outer length 1.2-1.5 rice of bottle, and interior 12--15 centimetre of bottle, the liquid that drains in order to guided puncture enters in the drainage bottle.Flexible pipe gauge tap 6 can make the flexible pipe that wherein passes through be in and cut out or unobstructed state.As the by-pass cock on the common intravenous transfusion device.Negative pressure drainage vessel 7 is a column type plastic bottle, and peripheral collapsible compression is the compression folded state before using, and utilization bottle week, folding part elasticity complex principle formed negative pressure, and hydrothorax is drawn.Drainage bottle drain proportioning device comprises the first half 8 and the latter half 9, the drainage bottle both sides respectively have a pair of up and down, be set to third gear, one grade for making drainage bottle be in compressive state, second gear is that 600ml is quantitative, three is that 1000ml is quantitative, and proportioning device is opened fully, and thoracentesis is divided into diagnostic tapping, decompression drawing liquid.The decompression drawing liquid is no more than 600ml in accordance with regulations first, is no more than 1000ml later at every turn, and the empyema drawing liquid pumps at every turn as far as possible.Several grades of settings of drain proportioning device on this basis promptly.There are three protruding small columns to combine on drain proportioning device the first half 8 and regulate the height that drainage bottle is opened again, change the bottle capacity with aperture on the drain proportioning device lower part 9.Drainage bottle negative pressure compression tube 10 when a large amount of drawing liquid drainage bottle elasticity reduce or other maloperation, makes bottle interior negative pressure deficiency so that hydrothorax when flowing out, can be managed collar extension thus and connect syringe or suction pump, is beneficial to the hydrothorax extraction with increase drainage bottle negative pressure.Drainage bottle negative pressure compression tube switch 11 is in closed condition at ordinary times.Prevent the air admission drainage bottle.Drainage bottle compression tube collar extension plug 12 is filled at ordinary times in the mouth of pipe, prevents that the maloperation switch from closing 11 o'clock air admission drainage bottles.

Claims (1)

1, a kind of automatic negative-pressure drain thoracic-puncture needle, it is characterized in that: this drain thoracic-puncture needle has a syringe needle, and the syringe needle rear portion is connected with three-way valve, and three-way valve one end is connected with the flexible glue plug by plastic tube; The other end is connected with depression drainage device with the flexible pipe gauge tap by flexible pipe; Depression drainage device has a negative pressure drainage vessel, negative pressure drainage vessel is a column type bottle, the wall of periphery is folding compress wall, end at negative pressure drainage vessel has a bottleneck, bottle cap is arranged on the bottleneck, flexible pipe enters in the bottle by bottle cap, also is connected with the negative pressure compression tube on bottle cap, is connected with to add at the middle part of negative pressure compression tube to compress switch; Be connected with drainage bottle collar extension plug in the end, the negative pressure drainage vessel side is connected with the drain batcher, and the drain batcher is made of the first half and Lower Half, and the first half and Lower Half are stripe shape, on the stripe shape of the first half, there are a plurality of cylindrical location protruding, on the stripe shape of Lower Half locating hole arranged.

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