CN201333126Y

CN201333126Y - Disposable Z-shaped tympanocentesis needle

Info

Publication number: CN201333126Y
Application number: CNU2009201048816U
Authority: CN
Inventors: 周颖; 侯军华; 晏继梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-13
Filing date: 2009-01-13
Publication date: 2009-10-28
Anticipated expiration: 2019-01-13

Abstract

A disposable Z-shaped tympanocentesis needle comprises a needle body and a needle stand. A connector for being sheathed with an injector inserting mouth is arranged at the center of the needle stand; two bends are formed on the needle body, which divide the needle body into a front section, a middle section and a rear section; the front section and the rear section of the needle body are horizontal; the middle section leans forward; a needlepoint is arranged at the head end of the front section of the needle body; the tail end of the front section of the needle body is transitionally connected with the top part of the middle section of the needle body through the first bend; the bottom part of the middle section of the needle body is transitionally connected with the head end of the rear section of the needle body through the second bend; a needle handle is arranged at the tail end of the rear section of the needle body; the needle handle is in the shape of a cuboid; flanges are respectively arranged on the front and the rear sides of the needle handle; the needle stand is fixedly connected to the rear part of the needle handle; and the connector at the center of the needle stand is communicated with the tail end of the rear section of the needle body. The utility model has the advantages of simple use, easy fixation, safety and reliability, has no influence on the operation visual field, reduces the technical difficulty of tympanocentesis, and provides convenience to treatment.

Description

The disposable auripuncture pin of Z type

Technical field

This utility model belongs to medical instruments field, relates to the auripuncture pin, specifically, relates to the disposable auripuncture pin that uses in the clinical secretory otitis media treatment.

Background technology

At present, in the clinical treatment of secretory otitis media, do not have special-purpose auripuncture pin, minute hand head (generally using the minute hand head No. seven) the puncture tympanum that can only use conventional syringe to use extracts the intratympanic hydrops of patient or injects medicine.

Please refer to Fig. 1, the needle body part 12 that minute hand head 11 is is direct rod shape, the long and peak profit too of the needle point of its front end 13, and behind the puncture tympanum 14, the degree of depth that enters tympanum 15 is dark excessively, damages other vital tissue of promontory of tympanum 20 or tympanum medial wall easily.

The afterbody of minute hand head 11 has the metal joint 16 of a circle, it is connected interrupting on 17 of syringe 18 front ends, during treatment, medical personnel will clamp metal joint 16 with finger, and hand are resisted against on the cheek of patient ear below, fix, the piston 19 of another hand operated syringe, because metal joint 16 volumes are little, and also very sliding, finger is not easy to clamp, and is bad fixing.

The weight of metal joint 16 is very big, and tympanum 14 can not be born any weight, and this has also increased the difficulty of operation.

Because syringe 18 is on the same straight line with minute hand head 11, the influence operation visual field makes troubles for treatment work, has increased the operating technology difficulty.

The utility model content

For addressing the above problem, the purpose of this utility model provides the disposable auripuncture pin of a kind of Z type, uses simply, is easy to fix, and is safe and reliable, can not influence the operation visual field, reduced the technical difficulty of auripuncture, brought convenience for treatment work.

For achieving the above object, this utility model is by the following technical solutions:

The disposable auripuncture pin of a kind of Z type, comprise needle body and needle stand, the center of needle stand is provided with and is used for the interface that the socket syringe is interrupted, it is characterized in that: needle body is provided with two bendings, these two bendings are divided into leading portion with needle body, the stage casing, back segment, the leading portion of needle body and back segment are all horizontal, the stage casing is the shape that turns forward, the head end of needle body leading portion is provided with needle point, the tail end of needle body leading portion is connected with the top transition in needle body stage casing by first bending, the bottom in needle body stage casing is connected with the head end transition of needle body back segment by second bending, the tail end of needle body back segment is provided with needle handle, and needle handle is a rectangular shape, before the needle handle, back both sides are provided with flange, described needle stand is fixed in the rear portion of needle handle, and the interface at needle stand center is communicated with the tail end of needle body back segment.Described first angle bending is 120 ° ± 10 °, and second angle bending is 120 ° ± 10 °.

The range of taper of described needle point is between 30 °-45 °.Described needle handle is provided with anti-skidding stricture of vagina.

This utility model has following positive beneficial effect:

This product uses simple, processing ease, and safe and efficient, the patient suffering is few, can not influence the operation visual field, has reduced the technical difficulty of auripuncture, has brought convenience for treatment work, has reduced the risk of treatment.Disposable use has been avoided the risk of the potential cross infection of use existence repeatedly, for the clinical treatment nursery work provides favourable guarantee.

Description of drawings

Fig. 1 is that conventional syringe uses the minute hand head to carry out the sketch map of auripuncture treatment.

Fig. 2 is the structural representation of this utility model embodiment one.

Fig. 3 is the partial enlarged drawing of Fig. 2.

Fig. 4 is the axonometric chart of Fig. 2.

Fig. 5 is the structural representation that this utility model is connected with syringe.

Fig. 6 is the structural representation of this utility model embodiment two.

Fig. 7 is the partial enlarged drawing of Fig. 6.

Fig. 8 is a user mode sketch map of the present utility model.

The specific embodiment

Number in the figure

1 leading portion, 2 stage casings, 3 back segments, 4 needle points, 5 needle handles

6 flanges, 7 flanges, 8 needle stands, 9 interfaces, 10 anti-skidding stricture of vaginas

11 minute hand heads, 12 needle body parts, 13 needle points, 14 tympanums

15 tympanums, 16

metal joints

17,18 syringes of interrupting

19 pistons, 20 promontories of tympanum, 21 bendings, 22 bendings

Please refer to Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, this utility model is the disposable auripuncture pin of a kind of Z type, comprise needle body and needle stand, the center of needle stand is provided with and is used for the interface that the socket syringe is interrupted, needle body is provided with two bendings, these two bendings are divided into leading portion 1 with needle body, stage casing 2, back segment 3, the leading portion 1 and the back segment 3 of needle body are all horizontal, stage casing 2 is the shape that turns forward, the head end of needle body leading portion 1 is provided with needle point 4, the tail end of needle body leading portion 1 is connected with the top transition in needle body stage casing 2 by first bending 21, the bottom in needle body stage casing 2 is connected with the head end transition of needle body back segment 3 by second bending 22, the tail end of needle body back segment 3 is provided with needle handle 5, needle handle 5 is a rectangular shape, before the needle handle 5, back both sides are provided with

flange

6,7, so that fingerhold, needle stand 8 is fixed in the rear portion of needle handle 5, and the interface 9 at needle stand 8 centers is communicated with as shown in Figure 7 with the tail end of needle body back segment 3.

Because of the needle body internal diameter has only 0.7mm, so the angle of two

bendings

21,22 can not be too little, to guarantee that liquid can circulate smoothly.In preferred embodiments, the angle A of first bending 21 is 120 ° ± 10 °, and the angle B of second bending 22 is 120 ° ± 10 °.The purpose that two bendings 21,22 are set is to make operator's hands can not block sight line, convenient treatment.

Please refer to Fig. 6, in preferred embodiments, needle handle 5 is provided with anti-skidding stricture of vagina 10.

Please refer to Fig. 3 and Fig. 8, the scope of the tapering C of needle point 4 is between 30 °-45 °.In this angular range, the puncture inclined-plane of needle point 4 suits, if the puncture inclined-plane is long, it is dark excessively to enter tympanum 15 during puncture, damages other vital tissue of promontory of tympanum 20 or tympanum medial wall easily.

During enforcement, the length of needle body leading portion 1 is about 4.5cm, to meet the anatomical features of the long 2.5～3.5cm of adult's external auditory meatus, the length in needle body stage casing 2 is about 2cm, to avoid external auditory meatus, the length of needle body back segment 3 and needle handle 5 respectively is about 2cm, so that operator's forefinger is fixed.

This product is applied in secretory otitis media patient auripuncture drawing liquid or the injection of drug, has changed traditional minute hand head and has carried out the bad drawback of fixing, influencing the operation visual field of operator's hands in the tapping treatment.

Claims

1. disposable auripuncture pin of Z type, comprise needle body and needle stand, the center of needle stand is provided with and is used for the interface that the socket syringe is interrupted, it is characterized in that: needle body is provided with two bendings, these two bendings are divided into leading portion with needle body, the stage casing, back segment, the leading portion of needle body and back segment are all horizontal, the stage casing is the shape that turns forward, the head end of needle body leading portion is provided with needle point, the tail end of needle body leading portion is connected with the top transition in needle body stage casing by first bending, the bottom in needle body stage casing is connected with the head end transition of needle body back segment by second bending, the tail end of needle body back segment is provided with needle handle, and needle handle is a rectangular shape, before the needle handle, back both sides are provided with flange, described needle stand is fixed in the rear portion of needle handle, and the interface at needle stand center is communicated with the tail end of needle body back segment.

2. the disposable auripuncture pin of Z type as claimed in claim 1 is characterized in that: described first angle bending is 120 ° ± 10 °, and second angle bending is 120 ° ± 10 °.

3. the disposable auripuncture pin of Z type as claimed in claim 1 is characterized in that: the range of taper of described needle point is between 30 °-45 °.

4. the disposable auripuncture pin of Z type as claimed in claim 1, it is characterized in that: described needle handle is provided with anti-skidding stricture of vagina.