CN201005762Y

CN201005762Y - Novel dual-purpose trocar for thoracic cavity dropsy puncture fluid pumping and indwelling

Info

Publication number: CN201005762Y
Application number: CNU2007200037764U
Authority: CN
Inventors: 张凤芝; 李永杰; 廖鲁燕; 夏学丽; 孙焕杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-27
Filing date: 2007-01-27
Publication date: 2008-01-16
Anticipated expiration: 2017-01-27

Abstract

A thoracic-puncture needle belongs to medical tool, which can resolve the defect of traditional puncture needle which can not extract accumulated liquid, and avoid complication most. The utility model is composed of a puncture muffle needle and a puncture needle core, wherein the puncture muffle needle is composed of a tube, a pintle with a two-way valve and a connecting base, the front end of the tube has a side hole, the needle core is composed of a needle rod, a needle handle and a needle base, the connecting base and the needle base have medical Ludwik interfaces with screw caps with internal screws, the needle core is some longer than the tube. When in puncture, the ,muffle and the needle core are both punctured into thoracic cavity, and when draws the needle core, the sharp is left in the connecting, then closes the two-way valve, completely draws out the needle core, connects a medical injector to extract liquid. When the liquid is completed extracted, and needs holding state, first closes the two-way valve, screws the screw cap on the connecting base, to avoid pollution on the interface of the connecting base, to prepare for next extraction. The utility model has reasonable structure, simple operation and high practicality, with wide application for clinic thoracic cavity accumulation liquid puncture extraction.

Description

A kind of novel hydrothorax tapping, keep somewhere dual-purpose puncture needle

Technical field

This utility model belongs to a kind of medical apparatus and instruments, a kind ofly is suitable for the hydrothorax tapping, keeps somewhere dual-purpose puncture needle.

Background technology

Clinically, require to take out most hydrops, but traditional thoracentesis needle is each hospital's self-control band hose and band control folder behind the draw point for paracentesis thoracis as far as possible.Need two people during operation, owing to be that draw point can not pump hydrops to greatest extent; Now part hospital is with trocar for chest work and the threeway drawing liquid that combines, and connects in the process of threeway extracting nook closing member, always have small amount of liquid to flow out or on a small quantity gas sucked by intrathoracic negative pressure.Sometimes sleeve pipe front end pin hole is stopped up by pleura, cellulose and purulent core, clot, and hydrothorax also can not be taken out to the greatest extent fully, has influenced the puncture quality, even has led to complications.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned prior art defective, provide a kind of and be applicable to the hydrothorax tapping, keep somewhere dual-purpose puncture needle, so that when hydrothorax punctures, take out most hydrops to greatest extent, shorten treatment time, the generation of as far as possible stopping complication.

The technical solution of the utility model: a kind of novel hydrothorax tapping, keep somewhere dual-purpose puncture needle, it is characterized in that: is made up of paracentesis trocar and puncture nook closing member, the paracentesis trocar front end is a flexible pipe, and middle for being with the pintle of two-way valve, the rear end is a Connection Block.The side opening that diameter 1mm is arranged apart from flexible pipe front opening 1cm place.Two-way valve Connection Block side length 6mm, the two-way valve internal diameter is consistent with the soft tube internal diameter.The Connection Block interface is medical Lu Shi syringe interface, and mouthful end has outer silk to tighten with the cap nut of band internal thread and closely to be connected.Nook closing member by pin do, needle handle, needle stand form, hub interface also be medical Lu Shi interface, mouthful outer silk of end band also has the cap nut closely connection with it of being with internal thread, nook closing member slightly is longer than soft tube, causes its needle tip to expose, and exceeds soft tube mouth 3mm.Needle point is the plagiohedral needle point, length of needlepoint 1.5mm.

Further technical scheme: on the described soft tube scale is arranged.

There is anti-skidding convex line at described two-way valve knob two ends.

Described needle handle has many, and " " " type convex line is to increase skidproof effect.

Described nook closing member needle stand and trocar Connection Block all have outer silk, interface is medical Lu Shi syringe interface, needle handle below center has " imitative outer silk " consistent with external diameter in the outer silk of trocar Connection Block, just in time with the outer silk embedding of trocar Connection Block two ends with, prevent that the trocar from rotating on nook closing member.

The beneficial effects of the utility model are: this paracentesis trocar can pump hydrops to greatest extent, and the thoracentesis complication reduces to greatest extent, and a people simple to operate just can finish.Show that by large sample (600 example) test use this paracentesis trocar under identical treatment condition, treatment time obviously shortens, the pachynsis pleurae rate obviously reduces, and none routine complication takes place.Our unit uses this paracentesis trocar under ultrasonic guidance, hydrops width 0.5cm, and hydrops amount 50ml all can pump and not have complication.Demonstrated fully the practicality of this paracentesis trocar, science, it has scientific and reasonable for structure, simple to operate, characteristics such as practical are to replace old-fashioned hospital to make a kind of new pin type of traditional thoracentesis needle by oneself, be worth in clinical hydrothorax tapping, extensively promoting, use.

Description of drawings

Below in conjunction with accompanying drawing this utility model is further described:

Fig. 1 is a front view of the present utility model, and figure A-A is the left view of Fig. 1.

Fig. 2 is the vertical view of this utility model trocar.

Fig. 3 is the front view of this utility model nook closing member.

Among the figure: 1 side opening, 2 soft tubes, 3 pintles, 4 two-way valves, 5 Connection Blocks, 6 needle points, 7 pins are done, 8 needle stands, 9 needle handles, 10 cap nuts

The specific embodiment

As shown in Figure 1, 2, 3, this paracentesis trocar is made of the trocar and nook closing member.The trocar is made up of 2 soft tubes, 3 pintles, 5 Connection Blocks.2 soft tubes are that polyethylene or polytetrafluoroethylplastic plastic are made, and length and nook closing member differ 3mm, and tip is made taper, make it be close to nook closing member needle tubing outer wall.The conduit leading portion can be moulding, makes it to bend to tee pipe, pigtail shape or other shapes.2 soft tube front ends have side opening, and indwelling, drain are used.3 pintles have 4 two-way valves that fuse with it, and 5 Connection Block interfaces are medical Lu Shi syringe interface, and a mouthful end has outer silk, and 3 pintles, 4 two-way valves, 5 Connection Blocks are made by the PVC material.Nook closing member by 7 pins do, 8 needle stands, 9 needle handles, 10 cap nuts form, 7 pins are done and are made by stainless steel tube, 6 needle points are the plagiohedral needle point, 9 needle handle tops have that " " " type convex line is to increase skidproof effect, the center, below has " imitative outer silk " consistent with external diameter in 5 Connection Blocks, just in time with 5 Connection Block two ends outside the silk embedding and, prevent that the trocar from rotating on nook closing member.8 hub interface are medical Lu Shi syringe interface, and mouth is held 10 cap nuts that outer silk arranged and be with internal thread, and 10 cap nuts can be backed out from 8 hub interface, and tighten and closely connection in 5 Connection Blocks.8 needle stands, 9 needle handles, 10 cap nuts are made by the PVC material.

Use this device hydrothorax drawing liquid, indwelling process:

1. site of puncture routine disinfection, shop hole towel local anaesthesia.

2. puncture casing and nook closing member thrust the thoracic cavity as shown in Figure 1, grasp depth of needle with the scale on 2 soft tubes, pull out nook closing member and make needle point be positioned at 5 Connection Blocks, close 4 two-way valves earlier, extract nook closing member more fully, connect the injector for medical purpose drawing liquid at last.To pump hydrops to greatest extent like this, both having prevented that traditional puncture needle from reducing with the hydrops amount accidentally injures lung tissue, can prevent trocar for chest work and the threeway drawing liquid that combines again, connect in the process of threeway extracting nook closing member, always have small amount of liquid to flow out or a small amount of gas is taken place by the situation that intrathoracic negative pressure sucks.

3. after waiting to pump hydrops, keep somewhere, then close 4 two-way valves earlier, back out 10 cap nuts from 8 needle stands again, twist on 5 Connection Blocks, prevent to pollute 5 Connection Block interfaces,, reduce patient's misery in order to next drawing liquid usefulness as need.With applying ointment or plaster the trocar is fixed in skin at last.

Claims

1. a novel hydrothorax tapping, keep somewhere dual-purpose puncture needle, it is characterized in that: form by paracentesis trocar and puncture nook closing member, the paracentesis trocar front end is a flexible pipe, middle pintle for the band two-way valve, and the rear end is a Connection Block, the flexible pipe front end has side opening, the flexible pipe tip is made taper, makes it be close to the dried outer wall of pin, and the conduit leading portion can be moulding, two-way valve Connection Block side length 6mm, the two-way valve internal diameter is consistent with the soft tube internal diameter; Nook closing member by pin do, needle handle, needle stand form, Connection Block interface and hub interface are medical Lu Shi interface, the mouth end is the outer silk of band all, and can tighten with the cap nut of band internal thread and closely be connected, nook closing member slightly is longer than soft tube, causes its needle tip to expose, and exceeds soft tube mouth 3mm, needle point is the plagiohedral needle point, length of needlepoint 1.5mm.

2. a kind of novel hydrothorax tapping according to claim 1, keep somewhere dual-purpose puncture needle, it is characterized in that: on the described soft tube scale is arranged.

3. a kind of novel hydrothorax tapping according to claim 1, keep somewhere dual-purpose puncture needle, it is characterized in that: there is anti-skidding convex line at described two-way valve knob two ends.

4. a kind of novel hydrothorax tapping according to claim 1, keep somewhere dual-purpose puncture needle, it is characterized in that: described needle handle has many " left punctuation marks used to enclose the title " type convex lines to increase skidproof effect.

5. a kind of novel hydrothorax tapping according to claim 1, keep somewhere dual-purpose puncture needle, it is feature: center, described needle handle below has " imitative outer silk " consistent with external diameter in the trocar Connection Block, just in time with trocar Connection Block two ends outside the silk embedding and, prevent that the trocar from rotating on nook closing member.