CN2395728Y

CN2395728Y - Chest puncture needle

Info

Publication number: CN2395728Y
Application number: CN99241310U
Authority: CN
Inventors: 彭启灿; 彭波
Original assignee: Affiliated Hospital of Luzhou Medical College
Current assignee: Affiliated Hospital of Luzhou Medical College
Priority date: 1999-10-13
Filing date: 1999-10-13
Publication date: 2000-09-13
Anticipated expiration: 2009-10-13

Abstract

The utility model belongs to an instrument which can transfer human bodies' media or takes the media from human bodies, namely a chest puncture needle. The length of a catheter of the chest puncture needle is 12 cm to 16 cm, the outer diameter of the catheter of the chest puncture needle is 0.2 cm to 0.3 cm, and the inner diameter of the catheter of the chest puncture needle is 0.1 cm to 0.2 cm. The position which is 7 cm away from a needle tip has a color annular mark. The needle tail on the catheter is a cone. The length of a needle core is 15 cm to 19 cm, and the tip end of the needle core is an inclined surface. The tail end of the needle core is connected with a guiding needle, the length of the guiding needle is 3 cm, the outer diameter of the guiding needle is 3.2 cm, and a needle tip is an inclined surface. A metal wire is arranged between the needle tail and the guiding needle. The one third position before the needle core is a bending part, and the bending angle of the bending part is 130 DEG to 140DEG. The utility model has the advantages of good curative effect, few complications and multiple functions. The utility model can be used for treating tuberculous, pleurisy, carcinomatous pleurisy, etc., besides treating pneumothorax.

Description

Thoracic-puncture needle

This utility model belongs to the transfering human medium or is the apparatus that takes out medium in human body.The apparatus of gas bleeding or liquid in the thoracic cavity particularly.

Spontaneous pneumothorax is China's commonly encountered diseases frequently-occurring disease, also is emergency department, internal medicine, tuberculosis section, thoracic surgery and the common emergency treatment of Respiratory Medicine.Domestic how concurrent in chronic bronchitis, chronic obstructive emphysema, pulmonary heart disease, bronchial asthma, pulmonary tuberculosis and spontaneous pneumothorax.In recent years report the trend that its sickness rate has to be increased year by year, account for internal medicine and the inpatient's of lung section 1.64%, case fatality rate is 7.3～19%.At present, the pneumothorax needle of this class disease of state's internal therapy has 84-2 type thoracic-puncture needle, metal thoracic catheterization and a kind of thoracic-puncture needle (patent No. is: 94229910.8).Preceding two kinds of puncture needles are thicker metal thoracic-puncture needle, and are big to tissue injury, heavier, need skin suture, and sales volume is little.A kind of thoracic-puncture needle in back has 2 deficiencies by clinical use for many years: 1) conduit and nook closing member are straight, and after skin was advanced in puncture, conduit and nook closing member can not enter tissue simultaneously, and conduit moves to the needle point direction easily, causes the catheter proximal end distortion and can not enter the thoracic cavity.2) conduit is that nontoxic high molecule plastic is made, and can not directly wear out skin, and therefore, with incision of skin, inserting needle strengthens operation easier to needs usefulness blade again at point of puncture.

The purpose of this utility model is to overcome the deficiency of above-mentioned thoracic-puncture needle, provide a kind of little to tissue injury, aerofluxus well is difficult for again being blocked by pleural fluid, and conduit has certain toughness and elasticity, tube chamber is difficult for being pressed off, twisting and to be out of shape and causes obstruction, yet easy damaged lung not after the lung abdominal distention simultaneously, disposable use does not need the thoracic-puncture needle of skin suture.

Thoracic-puncture needle is made up of catheter needle and nook closing member, it is conical that the catheter needle front end is, the needle point opening is slightly little, apart from needle point 1.5cm and 3cm place a circular side opening is arranged respectively, the long 12～16cm of catheter needle, external diameter 0.2～0.3cm, internal diameter 0.1～0.2cm, apart from needle point 7cm place a coloured annulet is arranged, supravasal backshank is cone, the long 15～19cm of nook closing member, its tip is the inclined-plane, connect one at the nook closing member tail end and draw pin, its long 3cm, external diameter 3.2cm, needle point is the inclined-plane, at backshank and draw an one metal wire is arranged between the pin, be bending section at preceding 1/3 place of nook closing member, its crooked angle is 130～140 °.

Described nook closing member is that stainless steel material is made.

Advantage of the present utility model:

1, processing ease, first aid is convenient in disposable importing;

2, little to tissue injury, aerofluxus is good, is difficult for being blocked by pleural fluid;

3, conduit has certain toughness and elasticity, so tube chamber is difficult for being pressed off, twisting and to be out of shape and causes obstruction, also easy damaged lung not after the lung abdominal distention simultaneously;

4, cross infection is avoided in the disposable use of this pin;

5, use immobilization with adhesive tape, the convenient skin suture that do not need;

6, good effect contrasts no significant difference, P＞0.05 at random with the big conduit of tradition;

7, complication is few, and is inexpensive, disposable use, and sales volume is big;

8, multi-functional, except that the treatment pneumothorax, also can treat diseases such as tuberculous pleuritis, carcinomatous pleurisy.

Accompanying drawing is a structure chart of the present utility model.

Be further elaborated below in conjunction with accompanying drawing:

Thoracic-puncture needle is made up of catheter needle 5 and nook closing member 7.The nontoxic high molecule plastic of catheter needle 5 usefulness is made, the long 14cm of pin, external diameter 0.3cm, internal diameter 0.2cm, it is conical that the pin front end is, and needle point 1 opening is slightly little, apart from needle point 1.5cm and 3cm place a circular side opening is arranged respectively, side opening is not or not a direction, apart from needle point 7cm place a coloured annulet 4 is arranged, be the degree of depth of inserting needle, it is adapter of plastic that backshank end 6 is cone, can connect water-sealed drainage bottle drainage tube or 50mL empty needle and bleed, draw water or the pneumothorax case is surveyed intrathoracic pressure, the inside and outside wall of conduit is all smooth.Nook closing member 7 usefulness rustless steels are made, long 17cm, and external diameter 0.2cm, the tip is the inclined-plane, and is sharp-pointed, when nook closing member 7 inserted conduit, the inclined-plane just can be exposed at the conduit mouth outside.Connect one at nook closing member 7 tails and draw pin 8, it is long to be 3cm, external diameter 3.2cm, needle point is the inclined-plane, at the nook closing member tail and draw an one metal wire 9 is arranged between the pin 8, it guarantees in the time of making nook closing member 7 insert in the conduits that needle point can longly not stretch outside conduit, in addition when drawing pin 8 and wear out skin, it holds the needle handle of pin, and as the sounding mark that draws pin 8 inserting needles.Preceding 1/3 place at nook closing member 7 is a bending section, and its flexibility is 140 °, and this bending section guarantees can prevent that conduit from damaging catheter proximal end to the needle point displacement after puncture needle enters skin.Had this bending section to make operation easier, the disposable puncture success rate obviously improves than before.

Claims

1, a kind of thoracic-puncture needle, form by catheter needle and nook closing member, it is conical that the catheter needle front end is, needle point (1) opening is slightly little, apart from needle point (1) 1.5cm and 3cm place a circular side opening (2) is arranged respectively, it is characterized in that: the long 12～16cm of catheter needle (5), external diameter 0.2～0.3cm, internal diameter 0.1～0.2cm has the supravasal backshank of a coloured annulet (4) (6) to be cone apart from needle point 7cm place, the long 15～19cm of nook closing member (7), its tip is the inclined-plane, connect one at the nook closing member tail end and draw pin (8), its long 3cm, external diameter 3.2cm, needle point is the inclined-plane, at the nook closing member tail and draw an one metal wire (9) is arranged between the pin (8), be bending section at preceding 1/3 place of nook closing member (7), its crooked angle is 130～140 °.

2, thoracic-puncture needle according to claim 1 is characterized in that: described nook closing member is a rustless steel.