CN201642331U

CN201642331U - Hard film outer discriminator

Info

Publication number: CN201642331U
Application number: CN2010201409484U
Authority: CN
Inventors: 衡垒
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-02
Filing date: 2010-03-02
Publication date: 2010-11-24
Anticipated expiration: 2020-03-02

Abstract

The utility model relates to a hard film outer discriminator, which comprises a discriminator needle body, scales, an opening, a needle seat and a discriminator outer port, wherein the discriminator needle body is provided with the scales and is hollow, the material is metal, and the quality is strong and tough, the head end is blunt, is not tough and is provided with the openings, and the diameter thereof are smaller than the diameter of a hard film outer conduit, and can have different lengths. The needle seat of the discriminator can be linked with a hard film outer needle, and the discriminator outer port is arranged on the needle seat. During the process of puncturing, a locator outer port discriminates the position of a hard film outer needle through a phenomenon which is produced through injecting less air-water mixture to a hollow needle after hanging drop liquid on a hard film outer needle port forms into a liquid film to seal a hard film outer needle outlet, thereby preventing from puncturing again in many times because the position is not discriminated clearly not to smoothly place pipes, reducing the pain and the injury, and also reducing the workload of medical personnel.

Description

The epidural determinant

Technical field

This utility model relates to a kind of medical medical apparatus and instruments, the epidural determinant of using when relating to a kind of clinical epidural puncture specifically.

Background technology

At present, reach in ache related treatment, the paroxysmal pain process in the basic anesthesia method of Anesthesia Department of China large, medium and small type hospital, epidural puncture is put pipe or indispensable, even occupy critical role, epidural puncture put pipe clear for those location, dissect normal, the tangible patient of epidural space negative pressure has certain empirical doctor of Anesthesia Department to implement still and can skillfully operate; But, for suchlike patient such as some obesities, spinal hyperosteogeny, anatomical variation, epidural negative pressure are not obvious, differentiate whether epidural needle then has certain difficulty at epidural space, in piercing process, tend to occur epidural catheter insert smooth or insert after not in the situation of epidural space, need all extract again puncture and intubation or sterile drape puncture and intubation again, not only bring huge misery and damage, brought inconvenience also for medical worker's work to patient.

The utility model content

The purpose of this utility model is a kind of epidural determinant that designs for the problem that overcomes present clinical existence.In piercing process, after epidural needle mouth hanging drop liquid formation liquid film is sealed the epidural needle outlet, inject the position that phenomenon that a little air-water mixture produces is judged epidural needle at the localizer collar extension by empty needle, thereby avoided because of repeatedly puncturing again that the unclear Guan Buchang of putting of location determination causes, reduce patient's painful and damage, also reduced medical worker's workload.

The technical scheme in the invention for solving the technical problem is:

A kind of epidural determinant, it comprises: the determinant needle body, scale, opening, needle stand, determinant collar extension; Wherein, scale and hollow are arranged on the determinant needle body, material is a metal, and matter is strong and tough; Head end is the no ligament opening of blunt circle, and its diameter can have different length smaller or equal to the epidural catheter diameter; The determinant needle stand of tail end can be connected with epidural needle, and the determinant collar extension is on needle stand.

Description of drawings Fig. 1 is a front view of the present utility model;

The specific embodiment

As shown in Figure 1, a kind of epidural determinant, it comprises: the determinant needle body 1, scale 2, opening 3, needle stand 4, determinant collar extension 5; Wherein, scale 2 and hollow are arranged on the determinant needle body 1, material is a metal, and matter is strong and tough; Head end is the no tough and band opening 3 of blunt circle, and its diameter can have different length smaller or equal to the epidural catheter diameter; The determinant needle stand 4 of tail end can be connected with epidural needle, and determinant collar extension 5 is on needle stand 4.

After anesthesia spinal needle enters certain depth, inject the 2-3ml normal saline through epidural needle earlier clinically and form the artificial lacuna that contains liquid, the epidural determinant inserted (the epidural needle collar extension is a labelling) is the position of 10.5-11cm to scale in the anesthesia spinal needle, then when epidural needle collar extension hanging drop liquid formation liquid film is sealed the epidural needle outlet, inject a small amount of air-water mixture from the determinant collar extension by empty needle, judge whether at epidural space by two kinds of phenomenons that occur:

If an anesthesia spinal needle is at epidural space, owing to form the lacuna that contains liquid, then having bubble to break through liquid film from the epidural needle collar extension overflows, simultaneously because the determinant pin has significantly reduced the volume of epidural needle, enlarged underbalance effect, turning round and look at only needs a little gas of injection tangible phenomenon will occur;

Two, if not at epidural space, then might be in loose connective tissue or fatty tissue, this moment will occur anesthesia spinal needle and determinant pin mouth does not then have bubble and overflows in same lacuna, do not occur even if might can not have tangible phenomenon owing to fatty tissue or connective tissue at a lacuna yet.

Epidural determinant described in the utility model, improved traditional method because the not obvious bubble not obvious deficiency that needs repetition test or even strengthen injecting gas mixture amount of gushing out that causes of epidural space negative pressure in clinical use, reduced the generation that is similar to related complications such as spinal artery ischemic injuries, improve the success rate of epidural puncture art, also alleviated patient's misery.

More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.

Claims

1. epidural determinant, it comprises: the determinant needle body, scale, opening, needle stand, determinant collar extension; Wherein, scale and hollow are arranged on the determinant needle body, material is a metal, and head end is the no tough and band opening of blunt circle, and its diameter can have different length smaller or equal to the epidural catheter diameter; The determinant needle stand of tail end can be connected with epidural needle, and the determinant collar extension is on needle stand.