|Title of Invention||
"A CHECK DILATOR FOR INSERTION OF A TRACHEOSTOMY TUBE INTO THE TRACHEA OF A PATIENT"
|Abstract||This invention relates to a check dilator. The check dilator has a hollow shaft extending downwardly into a tapered member. A flange is provided on the upper end of the hollow-shaft so that the dilator can be introduced upto the flange so as to prevent secondary injury The shaft is of uniform diameter and having a size corresponding to the diameter of the tracheostomy tube,|
|Full Text||FIELD OF INVENTION
This invention relates to a check dilator for insertion of a tracheostomy tube into the trachea of a patient Besides that of a dilator, the instrument of the present invention can advantageously be employed for several other applications, which are apparent from the ensuing description.
BACKGROUND OF INVENTION
It is known that a tracheostomy tube can be inserted into a patient by inserting a hollow needle into the trachea, and then sliding a cannula over the needle into the trachea. The needle is withdrawn, a guide wire is then passed into the trachea by threading said guide wire through the cannula. The cannula is removed leaving the wire in place and a dilator threaded over the wire is introduced into the trachea The dilator has curved jaws which are opened so as to split the trachea. The dilator is then removed leaving the wire in the trachea. A tracheostomy tube is then threaded along the wire into the trachea, and then the wire is removed.
Though such a dilator does possess certain distinct advantages in that it is no longer necessary to shift a patient to an operating theatre, a disadvantage of such a dilator is that it produces a transverse slit and whereby the round tracheostomy tube cannot be
conveniently introduced into the trachea. A further disadvantage is that no means are provided for checking the size of the dilation
Yet another disadvantage associated with the tracheostomy tubes, but not with the aforesaid dilator, is that of an accidental extubation of the tube, and which does often results in grave consequences.
OBJECTS OF THE INVENTION
An object of this invention is to propose a novel construction of a check dilator for checking the dilation caused by a dilator in the trachea of a patent.
Another object of this invention is to propose a check dilator for shaping the transverse slit formed by a dilator in the trachea into a round slit so as to thereby allow an easier insertion or introduction of a tracheostomy tube into the trachea.
Still another object of this invention is to propose a check dilator which has means to allow an insertion into the trachea only upto a certain depth so as to avoid secondary injuries
A further object of this invention is to propose a check dilator which may also be employed as a tracheostomy tube in the event of an emergency such as accidental extrubation.
BRIEF DESCRITPION OF INVENTION
According to this invention there is provided a check dilator characterized in that a hollow shaft extending downwardly into a tapered member, a flange on the upper end of said hollow shaft for the introduction of dilator upto the flange so as to prevent secondary injury, said shaft being of uniform diameter and having a size at least 0.5 mm more than the diameter of the tracheostomy tube.
DESCRITPION OF INVENTION WITH REFERENCE TO ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more apparent fro the ensuing description when read in conjunction with the accompanying drawing and wherein:
Fig. 1 shows the check dilator of the present invention
Referring to fig 1 the check dilator 1 is a hollow structure, comprises of a rounded connector shaped top 2 and a shaft 3 extending into a curved tapered member 4 angularly displaced to the vertical axis of the dilator. By way of example, the tapered member 4 is displaced at an angle of 30°. The external diameter of shaft 3 is only slightly greater than the size of tracheostomy tube to be inserted within the trachea, which size is written on flange 5. The togal length of the shaft is about 5 cm. Thus, shaft 3 has outer diameter 0.5 mm more than the outer diameter of the tracheostomy tube to be inserted. The tapered part 4 of the shaft contains one or more holes 6 for introduction of oxygen, if required. A 14-FG guidewire can be threaded right through the length of the check-dilator The rounded top provides a better grip during the check stoma dilation and can be connected with the breathing circuit to insufflate the oxygen during emergency situations
1. A check dilator (1) characterized in that a hollow shaft (3) extending
downwardly into a tapered member (4), a flange (5) on the upper end (2)
of said hollow shaft for the introduction of dilator upto the flange so as to
prevent secondary injury, said shaft being of uniform diameter and
having a size at least 0.5 mm more than the diameter of the
2. A check dilator as claimed in claim 1 wherein the tapered member is
inclined at an angle of for example 30° with respect to the vertical axis of
3. A check dilator as claimed in claim 1 wherein at least one hole is
provided in said tapered member.
4. A check dilator substantially as herein described and illustrated with
reference to accompanying drawing.
|Indian Patent Application Number||829/DEL/2000|
|PG Journal Number||30/2010|
|Date of Filing||13-Sep-2000|
|Name of Patentee||SANJAY GANDHI POST GRADUATE INSTITUTE OF MEDICAL SCIENCES|
|Applicant Address||LUCKNOW-226014, INDIA.|
|PCT International Classification Number||A61B 1/267|
|PCT International Application Number||N/A|
|PCT International Filing date|