CN202843748U

CN202843748U - Puncture needle with chamfers and for oocyte collector

Info

Publication number: CN202843748U
Application number: CN 201220497804
Authority: CN
Inventors: 林扬
Original assignee: GUANGZHOU PINZHI MEDICAL DEVICES CO Ltd
Current assignee: Guangzhou Pinzhi Medical Device Co ltd
Priority date: 2012-09-26
Filing date: 2012-09-26
Publication date: 2013-04-03
Anticipated expiration: 2022-09-26

Abstract

The utility model relates to a puncture needle with chamfers and for an oocyte collector. The puncture needle with the chamfers and for the oocyte collector comprises a needle tube, wherein a needle point is formed on the front end face of the needle tube, and the chamfers are formed between the outer wall and the front end face of the needle tube and located on two sides of the needle point. The puncture needle with the chamfers and for the oocyte collector has the advantages of being easy to puncture, safe, reliable, small in pain brought to patients, convenient to use, easy to operate, and the like.

Description

A kind of puncture needle of the oocyte harvester with chamfering

Technical field

This utility model relates to medical apparatus and instruments, relates in particular to a kind of puncture needle of the oocyte harvester with chamfering.

Background technology

Along with the develop rapidly of auxiliary procreation technology, tube-test baby techniques relies on high-end technical guarantee and rigorous scientific procedure, more and more obtains numerous sterility and infertility Mr. and Mrs' favor.And the sterility and infertility patient who day by day increases has higher requirement to the performance accuracy of ova harvest.General method is to adopt the oocyte harvester to get ovum through the puncture vagina under hyperacoustic guiding at present, yet, owing to utilizing the method to obtain main apparatus---the needle point structure factor of the puncture needle of oocyte harvester of ovum, and after causing same needle point to get ovum through the different ovarian follicle wall that repeatedly punctures, easy rust or distortion or generation agnail, not only make troubles to the operator, also can bring misery to the patient, easily cause the problems such as the site of puncture is hemorrhage simultaneously.Be 201010108612.4 and 200520103508.0 the disclosed puncture needle structure of Chinese patent application such as application number, just have above-mentioned deficiency.

The utility model content

The purpose of this utility model is to propose a kind of puncture needle of the oocyte harvester with chamfering, and it can solve existing puncture needle after the repeated puncture ovarian follicle wall is got ovum, easily rust, distortion or produce glochidiate problem.

In order to achieve the above object, the technical scheme that adopts of this utility model is as follows:

A kind of puncture needle of the oocyte harvester with chamfering, it comprises needle tubing, is formed with needle point on the front end face of needle tubing, is formed with chamfering between the outer wall of needle tubing and the front end face, described chamfering is positioned at the both sides of needle point.

As preferred structure, the axis of needle point and needle tubing forms the first plane; The plane vertical with the first plane is the second plane, and the axis of needle tubing also is positioned on the second plane; The plane at chamfering place is the 3rd plane, and the angle on the 3rd plane and the second plane is acute angle.

As preferred structure, described chamfering is straight chamfering or rounded corner.

The utlity model has following beneficial effect:

Owing to being provided with chamfering in the both sides of needle point, farthest guaranteed the sharpness of needle point when the repeated puncture ovarian follicle wall is got ovum, and rust, distortion can not occur or produce glochidiate problem, farthest reduced tissue injury, reduce patient's misery, even can avoid well the problems such as the site of puncture is hemorrhage.

Description of drawings

Fig. 1 is the structural representation with the puncture needle of the oocyte harvester of chamfering of this utility model preferred embodiment.

Fig. 2 is that the A of Fig. 1 is to schematic diagram.

Reference numeral: 1, needle tubing; 2, needle point; 3, chamfering; 100, the first plane; 200, the second plane.

The specific embodiment

Below, by reference to the accompanying drawings and the specific embodiment, this utility model is described further:

As depicted in figs. 1 and 2, a kind of puncture needle of the oocyte harvester with chamfering, it comprises needle tubing 1, is formed with needle point 2 on the front end face of needle tubing 1, is formed with chamfering 3 between the outer wall of needle tubing 1 and the front end face, described chamfering 3 is positioned at the both sides of needle point 2.The chamfering 3 of the present embodiment adopts straight chamfering.

As a kind of more preferably structure, needle point 2 forms the first plane 100 with the axis of needle tubing 1; The plane vertical with the first plane 100 is the second plane 200, and the axis of needle tubing 1 also is positioned on the second plane 200; The plane at chamfering 3 places is the 3rd plane (figure does not mark), and the included angle B on the 3rd plane and the second plane 200 is acute angle (seeing also Fig. 2), and the preferred angular range of included angle B can be between 5 °-80 °.That is to say, between the outer wall of needle tubing 1 and front end face during machining, be to cut out chamfering 3 towards the direction that needle point 2 thrusts ovarian follicle wall.

During use, under ultrasonic leading, the oocyte harvester enters ovary by posterior fornix, 2 pairs of a certain ovarian follicle wall of the needle point of puncture needle puncture and get ovum, then needle point 2 withdraws from this ovarian follicle wall again, again another ovarian follicle wall is carried out oocyte pickup, and the needle point 2 of the puncture needle of the present embodiment is after the repeated puncture ovarian follicle wall is got ovum, still have higher sharpness, and can rust, distortion or produce agnail.

The puncture needle of the oocyte harvester of the present embodiment have the puncture easy, safe and reliable, to the patient bring painful little, easy to use, simple operation and other advantages.

In addition, the chamfering of the present embodiment can also machining become rounded corner.

For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection domain of this utility model claim all.

Claims

1. puncture needle with the oocyte harvester of chamfering, comprise needle tubing (1), be formed with needle point (2) on the front end face of needle tubing (1), it is characterized in that, be formed with chamfering (3) between the outer wall of needle tubing (1) and the front end face, described chamfering (3) is positioned at the both sides of needle point (2).

2. the puncture needle of the oocyte harvester with chamfering as claimed in claim 1 is characterized in that, needle point (2) forms the first plane (100) with the axis of needle tubing (1); The plane vertical with the first plane (100) is the second plane (200), and the axis of needle tubing (1) also is positioned on the second plane (200); The plane at chamfering (3) place is the 3rd plane, and the angle of the 3rd plane and the second plane (200) is acute angle.

3. the puncture needle of the oocyte harvester with chamfering as claimed in claim 1 or 2 is characterized in that, described chamfering (3) is straight chamfering or rounded corner.