Drainage tube for sinus maxillaris, a means for its insertion an

Details Drainage tube for sinus maxillaris, a means for its insertion an Drainage tube for sinus maxillaris, a means for its insertion an

1990-02-16

1992-08-18

Rosenbaum, C. Fred

Surgery

Instruments

Means for inserting or removing conduit within body

604 8, 604264, A61M 2501

Patent

active

051395029

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The present invention relates to a drainage tube for creating permanent access to sinus maxillaris during a desired length of time, particularly for drainage of the sinus maxillaris. Sinus maxillaris is often alone or in combination with other paranasal sinuses a seat for infections resulting in suppuration collection with accompanying pain, soreness and weight feeling. The treatment of such infections is firstly directed to drainage of the suppuration collection through puncture of the sinus maxillaris and sucking-out of the suppuration and/or flushing thereof. This therapy must, usually in combination with medicine treatment, often be repeated several times before the infection has been removed.
Puncture and flushing of sinus maxillaris usually takes place in such a manner that after local anaesthesia of the nasal mucosa a sharp needle is inserted into the nose below the inferior coucha. The needle is forced with great force through the bone wall into the sinus maxillaris. Possibly, a portion of the suppuration is thereafter sucked out for diagnosis and bacterium culture, whereupon the remaining suppuration can be flushed out through the normal, but owing to the infection often closed, ostium of the sinus maxillaris. The above described treatment is troublesome for the patient, particularly when it must be repeated several times before the infection is healed and disappeared. Moreover, many patients have disposition for recurring infections which require accompanying new treatments. These patients stand the risk of developing chronic infections and inflammations which in the end require radical surgical evacuation of sinus maxillaris.
Summing up, the means for current treatment of acute and chronic purulent infections in sinus maxillaris are unsatisfactory for the following reasons:
1. Puncture and flushing must be often repeated.
2. Gives only temporary recovery and must almost always be combined with antibiotic treatment.
3. Does not prevent new infections.
There are also on the market some different types of drainage which, however, are all intended for short use in connection with acute infection. These drainages consist of a hose having a few millimeters in diameter, which hose with the aid of a needle is forced through the bone wall into the sinus maxillaris. The hose is applied in such a manner that it gives the possibility to flush the sinus maxillaris during some time without the need for braking up a new hole for each time. By different arrangements, the hose is prevented from falling out of sinus maxillaris.
Besides the disadvantage of only being intended for short use in connection with acute infection, these drainages with hoses have other disadvantages deriving from the manner to apply the hose, as well as from the shape and the dimension thereof.
These problems have led to the development of the present invention, and by the invention the following advantages are obtained:
1. The drainage can be applied in a manner which is almost entirely pain-free and liniant for the patient.
2. The diameter of the drainage is such that a continuous discharge of suppuration and secretions and inflow of air can take place unprevented. The drainage allows the possibility of sucking out suppuration and secretions as well as, when need arises, flushing sinus maxillaris.
3. The configuration and the application is such that the drainage can be maintained during a long time, and not only cure acute infections, but also prevent new infections by providing for continuous out-flow and circulation of air.
4. The drainage allows the insertion of fibre optical equipment.
In order to obtain the above mentioned advantages, the present invention relates to a drainage tube for the application in a hole made in the bone wall between sinus maxillaris and nasal cavity for treatment of infections in sinus maxillaris and arranged for permanent application on the bone wall during the entire treatment time before its removal by extraction. The characteristics of the drainage tube according to the i

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