CN2078176U

CN2078176U - Porous hard film external catheter

Info

Publication number: CN2078176U
Application number: CN 90219290
Authority: CN
Inventors: 黄存诚; 贾宝春; 杨其林; 程宪生
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-11-10
Filing date: 1990-11-10
Publication date: 1991-06-05

Abstract

The utility model relates to a porous epidural guiding tube for anaesthesia, which belongs to the technical field of medical appliances. A plurality of medicine guiding holes are arranged in the range of the effective anesthesia inserting depth of an epidural guiding tube and are uniformly distributed, namely that the medicine guiding holes are distributed in an equidistant mode in a longitudinal direction and are distributed on a circumference in a mode of the same circumferential angles. The utility model has the advantages of reasonable design and simple structure, has obvious effects on enlarging the range of anesthesia blockade, reducing local anesthetic dosage and improving anesthesia success ratios, and simultaneously has good muscle loosing effects without untoward reaction.

Description

Porous hard film external catheter

This utility model belongs to the medical supplies technical scope, relates to a kind of improvement of anaesthetizing the epidural catheter of usefulness.

The epidural catheter of prior art all is the single hole pipe generally, has only front end one hole.This single hole epidural catheter, in use, since the recipient to the influence of factor such as angle, local anaesthetics is slow in the disperse speed of epidural space, though dosage is big, anesthesia retardance scope is undesirable, and one-sided infull phenomenon often appears, even stopped up by clot and connective tissue, and catheter proximal end passes intervertebral foramina, or conduit fold back, distortion, cause the epidural anesthesia failure.

Task of the present utility model provides a kind of porous epidural catheter, to overcome the above-mentioned shortcoming of existing single hole epidural catheter.

This utility model is improved on the basis of existing single hole epidural catheter, and its main points are in effective anesthesia placed-depth scope of conduit a plurality of medicine holes of leading to be set.

Fig. 1 is a leading portion sectional side elevation of the present utility model

Fig. 2 is an A-A amplification view among Fig. 1

Fig. 3 is a B-B amplification view among Fig. 1

Fig. 4 is a C-C amplification view among Fig. 1

Fig. 5 is a D-D amplification view among Fig. 1

With reference to the accompanying drawings this utility model is elaborated below:

With reference to the accompanying drawings, 1 is catheter body among the figure, effectively is being provided with a plurality of medicine holes 2 of leading in the anesthesia placed-depth scope on the catheter body.For making local anaesthetics more even in the epidural space disperse, obtain to anaesthetize more widely the retardance scope, reduce dosage, said a plurality of medicine holes 2 of leading are uniform distribution, promptly, angular distribution in the first-class garden week in garden week of conduit at the vertical uniform distribution of effective anesthesia placed-depth of epidural catheter.

When epidural anesthesia, the placed-depth of conduit is usually at 3-5 centimetre, set effectively that the anesthesia placed-depth is 3 centimetres, in 3 centimetres, it is very few to lead the medicine hole, still have and the drawback that aforementioned single hole pipe may occur to occur, too much as phenolphthalein medicine hole, the one, there is not too big necessity, the 2nd, will cause the reduction of stretching resistance intensity, therefore, this utility model selects for use 4 to lead the medicine hole and be advisable.

Accompanying drawing can be used as an embodiment of the present utility model, with 3 centimetres as effectively anaesthetizing placed-depth, in its scope, establish 4 and lead the medicine hole, vertically pitch-row is 1 centimetre, on the circumference of conduit, angle of circumference is 90 degree between adjacent hole.Through antipriming pipe group 76 examples, the 58 routine relative analyses of single hole pipe group, it is 10.13 ± 3.54 that antipriming pipe group epidural anesthesia on average blocks nerve segment, and single hole Guan Zuwei 7.69 ± 2.39 has highly significant difference through the check of U value.

This utility model is reasonable in design, and is simple in structure, can enlarge anesthesia retardance scope, reduces local anaesthetics and adjuvant consumption, improves the anesthesia success rate.Have good flesh pine effect simultaneously, alleviate the tractive reaction, patient vital signs is not had obvious influence, no obvious adverse reaction.

Claims

1, a kind of porous epidural catheter comprises catheter body 1, it is characterized in that being provided with a plurality of medicine holes 2 of leading in effective anesthesia placed-depth scope of conduit 1.

2, conduit according to claim 1 is characterized in that said a plurality of medicine hole 2 of leading, conduit 1 vertically on evenly announce, angular distribution in the first-class garden week in garden week of conduit.

3, conduit according to claim 1 is characterized in that said effective anesthesia placed-depth is 3 centimetres.

4, according to claim 1 or 2, or 3 described conduits, it is characterized in that said a plurality of medicine hole of leading is 4 and leads the medicine hole.