TRIGEMINAL NEURALGIC BALLOON COMPRESSION KIT

Abstract

The present invention relates to a medical kit and method of administration for trigeminal balloon compression used in the treatment of trigeminal neuralgia. The kit reaches the damaged area percutaneously and penetrates the balloon most effectively to the damaged spot. The present invention is a trigeminal neuralgic balloon compression kit which can overcome the aforementioned disadvantages; it is characterized by being a product kit and application method which has a simple structure and can easily and effectively convey the balloon to the damaged area.

Claims

1.-4. (canceled)

5. A catheter system for delivering a compression balloon through the foramen ovale of the skull of a patient, comprising: a plurality of rigid guide wires having different diameters, and a sheath having an inner diameter large enough to slidably receive the guide wire of the plurality of guide wires having the largest diameter, wherein a system operator selects one of the plurality of guide wires having a diameter small enough to insert through the foramen oval of the patient, inserts the selected guide wire through the foramen ovale of the skull of the patient, and slides the sheath over the selected guide wire to deliver a compression balloon.

6. The system of claim 5, wherein the diameters of the plurality of guide wires are 1.1 mm, 1.4 mm, 1.6 mm, and 1.8 mm, respectively.

7. The system of claim 5, wherein the sheath is formed from one of stainless steel, chrome plated steel, aluminum, and a plastic composition.

8. The system of claim 5, wherein each of the plurality of guide wires is formed from one of stainless steel, chrome plated steel, aluminum, and a plastic composition.

9. A method for delivering a compression balloon through the foramen ovale of the skull of a patient to relieve trigeminal neuralgia using a catheter kit that includes a plurality of rigid guide wires having different diameters, and a sheath having an inner diameter large enough to slidably receive the guide wire of the plurality of guide wires having the largest diameter, comprising the steps of: selecting one of the plurality of guide wires having a diameter small enough to insert through the foramen oval of the patient, inserting the selected guide wire through the foramen ovale of the skull of the patient under the guidance of radioscopy until the back of the trigeminal nerve ganglion is reached, and sliding the sheath over the selected guide wire to deliver a balloon catheter against the trigeminal nerve ganglion.

Description

EXPLANATION OF THE FIGURES

[0015] The invention be described with reference to the accompanying drawings from now on. Thus, the features of the invention will be more clearly understood and appreciated. However, this is not intended to limit the invention to certain embodiments. On the contrary, it is intended to cover all alternatives, modifications, and equivalents that may be included within the scope of the invention as defined by the appended claims.

[0016] FIG. 1 Sheath Frontal View,

[0017] FIG. 2 Sheath Side view,

[0018] FIG. 3 Guide Wire (caliber 1.8),

[0019] FIG. 4 Fixing Notch Close-up View,

[0020] FIG. 5 Guide Wire (caliber 1.6),

[0021] FIG. 6 Guide Wire (caliber 1.4),

[0022] FIG. 7 Guide Wire (caliber 1.1),

[0023] FIG. 8 Sheath and Guide Wire Mount View,

[0024] FIG. 9 Sheath and Guide Wire Edge Close-up

[0025] The figure to assist in the understanding of the present invention is numbered as indicated in the attached drawing and is given below along with their names.

EXPLANATION OF REFERENCES

[0026] 1. Sheath head [0027] 2. Guide Wire (caliber 1.8) [0028] 3. Guide Wire (caliber 1.6) [0029] 4. Guide Wire (caliber 1.4) [0030] 5. Guide Wire (caliber 1.1) [0031] 6. Sheath and Guide Wire Edge Close-up

DESCRIPTION OF THE INVENTION

[0032] Trigeminal Neuralgia Balloon Compression kit, which is the subject of the invention, consists of five parts. The first part of the equipment consists of four guide wires, which are respectively 1.8 mm, 1.6 mm, 1.4 mm and 1.1 mm in diameter. Marking notches are provided on the guide wires. This notch indicates how far the sheath will be advanced over the wire.

[0033] The sheath needle passes safely over this guide to provide a path for the placement of the balloon catheter. The outer caliber of the sheath is 2.2 mm and the inner caliber is 2 mm.

DETAILED EXPLANATION OF THE INVENTION

[0034] In percutaneous balloon compression of trigeminal neuralgia, neuralgia is treated by application of compression to the trigeminal nerve root posterior to the ganglion with a temporarily inflated balloon.

[0035] The guide wire is inserted into the foramen oval percutaneously. The surgeon feels that the foramen has been entered and confirms this radiographically. The wire is advanced to the “clivus” line under radioscopic control. The sheath (FIG. 1) is advanced over this wire to the marker notch in the wire being inserted into the foramen (FIG. 3, 5, 6, 7). Radioscopy confirms again that the sheath has engaged the foramen. At this stage, the guidewire is withdrawn, the balloon is inserted through the catheter sheath and inflated with 0.75 ml radio-opaque material. Inflation of the balloon is checked by radioscopy. After waiting for three minutes, the liquid in the flask is withdrawn and the system is ejected.

[0036] The sheath (FIG. 1) consists of two parts as a cap and a guide body. The head part is used for manual fixation and the body part (1) is used percutaneously to penetrate the trigeminal region. The guide wire (FIGS. 3, 5, 6, 7) passes through the body part (1). The edge of the sheath is not sharp.

[0037] The four guide wires in the kit (FIGS. 3, 5, 6, 7) have a caliber of 1.8 mm, 1.6 mm, 1.4 mm, 1.1 mm. The ends of the wires are blunt. The caliber of the foramen ovale may vary from patient to patient. Therefore, when it is not possible to treat some patients with large caliber wires, small caliber wires are required.

[0038] There is an indication notch on the wire. This notch, which can be felt by touch, is also colored for visual identification. The location of the notch is related to the length of the sheath and the length of the balloon, and is 17 mmm longer than the length of the sheath in the present kit.

[0039] In the present kit, the length of the sheath is 156 mm, the length of the wire is 240 mm, and the marking point on the wire is 173 mm (156+17). However, the length of the sheath can be reduced to 80 mm if desired, but the mark on the wire should equal the length of the inflatable tip of the balloon catheter, usually between 15 and 20 mm.