JP2004321669A - Dacryostenosis treatment tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dacryostenosis treatment tool by which this operation is surely prevented from becoming a large scale by facilitating insertion to a lacrimal canaliculus. <P>SOLUTION: The dacryostenosis treatment tool 1 is formed to be a bar-like body made of an elastic member, and extends from the lacrimal canaliculus to a canalis nasolacrimalis. At both of the ends of the tool 1, recessed places 1c which open at side faces and do not open at end faces are formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for treating lacrimal canal obstruction used for treating lacrimal canal obstruction from the lacrimal canaliculus to the nasolacrimal duct, among lacrimal disorders.
[0002]
[Prior art]
In general, among the lacrimal diseases, for obstruction of the lacrimal canaliculus due to various causes including trauma, surgical treatment using so-called tubing using a tube for forming an artificial lacrimal passage is performed (for example, see Patent Document 1).
Tubes used for this type of treatment are known to be inserted through a through-hole formed at the border between the meniscal septum of the conjunctival sac and the skin of the inner canthus and reach the inferior nasal passage through the lacrimal sac and nasolacrimal duct. Have been. An artificial lacrimal passage from the conjunctival sac to the inferior nasal passage is formed by the inserted tube, and the tube is kept in place until a new lacrimal passage is formed in the portion where the tube is disposed. It is designed to let tears flow down.
[0003]
By the way, according to the conventional instrument for treating lacrimal canal obstruction (tube), it is necessary to form a through-hole at the boundary between the meniscal septum of the conjunctival sac and the skin of the internal canthus before inserting the tube. There is a problem that it is difficult to avoid a large scale.
[0004]
As a means for solving such a problem, it is conceivable to insert a therapeutic device for lacrimal canal obstruction directly into the occluded lacrimal canaliculus.
[0005]
However, this type of lacrimal canal obstruction treatment device needs to be placed along the path from the punctum to the inferior nasal passage through the lacrimal canaliculus, and it is necessary for the patient to wait for the lacrimal canal to heal. This treatment device is preferably formed of a soft elastic material having flexibility, for example, Si resin or the like, since it is necessary to minimize the burden of the treatment. It is extremely difficult to insert the treatment tool formed of the soft elastic material into the lacrimal canaliculus having a small inner diameter, and it is difficult to realize an operation for inserting the lacrimal canal obstruction treatment tool directly into the lacrimal canaliculus. There was a problem that it was difficult.
[0006]
[Patent Document 1]
JP 10-309292 A
[Problems to be solved by the invention]
The present invention has been made in view of such circumstances, and provides a therapeutic device for lacrimal canal obstruction, which can be easily inserted into the lacrimal canaliculus and can reliably avoid a large-scale operation. The purpose is to do.
[0008]
[Means for Solving the Problems]
In order to solve the above problems and achieve such an object, the present invention proposes the following means.
The treatment device for lacrimal obstruction of the present invention is a treatment device for lacrimal obstruction formed from a rod-shaped body by an elastic member and extending from the lacrimal canaliculus to the nasolacrimal duct. A notch or a notch is formed in the opening.
[0009]
In this device for treating lacrimal canal obstruction, the recess or cut is formed at both ends of the rod-shaped body, so that the therapeutic device can be easily and reliably inserted into the lacrimal canaliculus.
That is, before inserting the treatment tool into the lacrimal canaliculus, the tip of the lacrimal bougie is placed in the recess or cut at one end of the treatment tool in advance, and in this state, the one end Can be arranged at the opening of the lower lacrimal canaliculus, for example, and the rear end of the lacrimal canal can be pushed in toward the distal end, so that the treatment tool can be moved in the pushing direction of the lacrimal canal. . Thereby, one end of the lacrimal canal obstruction treatment tool is inserted through the opening of the inferior lacrimal canaliculus, and further, by pushing in the lacrimal canaliculus, one end of the therapeutic implement reaches the inferior nasal passage. become.
Then, the tip of the lacrimal bougie is placed in the recess or cut at the other end of the lacrimal obstruction treatment device, and in this state, the other end is placed, for example, in the opening of the upper lacrimal canaliculus. And by pressing in the same manner as described above, the other end of the therapeutic device is inserted from the opening of the upper canaliculus, and by further pressing the lacrimal bougie, the other end side of the therapeutic device is It will lead to the lower nasal passage.
As described above, although the inner diameter of the lacrimal canalicula is minute, and the lacrimal canal obstruction treatment tool is a soft elastic material having flexibility, it can be easily and reliably inserted into the lacrimal canaliculus. Become like
[0010]
In addition, the lacrimal obstruction treatment device of the present invention is the lacrimal obstruction treatment device according to claim 1, wherein the periphery of the incision on the surface of the recess or the outer surface of the lacrimal obstruction treatment device is the tear. The outer surface of the other part of the device for treating road obstruction is different in color.
[0011]
In the device for treating lacrimal canal obstruction, the surface of the recess or the periphery of the cut is different in color from the outer surface of the other portion of the treatment device, so that the position of the recess or cut can be easily and reliably determined. The treatment device can be grasped, and the tip of the lacrimal passage bougie can be easily placed on the treatment tool accurately.
[0012]
Further, the therapeutic device for lacrimal obstruction of the present invention is a therapeutic device for lacrimal obstruction formed from a rod-shaped body by an elastic member and extending from the lacrimal canaliculus to the nasolacrimal duct. An engaged portion to be engaged is formed.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of a device for treating lacrimal canal obstruction according to the present invention will be described with reference to FIGS.
As shown in FIG. 1, the lacrimal canal obstruction treatment device 1 is formed into a solid rod-like body by a flexible soft elastic member such as Si resin. Here, by forming the treatment tool 1 with the soft elastic member, it is possible to improve the handleability at the time of insertion into the lacrimal canal, and the treatment tool 1 can be moved along the path from the canaliculus to the inferior nasal passage. Even when the patient is indwelled for a long period of time, the burden on the patient can be reduced.
[0014]
In addition, the dimensions of the treatment device 1 are formed, for example, to have an outer diameter of about 0.5 mm to 0.9 mm and a length of about 200 mm to 300 mm in order to achieve good matching with the lacrimal canaliculus. . This dimension setting can be appropriately changed in order to realize better consistency of the lacrimal canal obstruction treatment device 1 with the lacrimal canaliculus. For example, for children, the outer diameter is set slightly smaller. .
[0015]
Here, the lacrimal passage bougie 2 described later, which is configured to be open at this peripheral surface and not open at each of the distal end surfaces 1a and 1b, is provided at substantially the center in the radial direction at both ends of the lacrimal canal obstruction treatment device 1. A concave portion 1c is formed as an engaged portion to be engaged with the tip of the head. The recess 1c has a depth of about 0.45 mm, and is formed such that the tip of the opening of the recess 1c is located at a position 2 mm to 3 mm from each of the distal end surfaces 1a and 1b of the treatment tool 1. ing.
The surface of the recess 1c is different in color from the outer surface of the other part of the treatment tool 1, so that the position of the recess 1c can be easily and reliably grasped. As shown, the tip of the lacrimal passage bougie 2 can be accurately and easily arranged in the recess 1c.
[0016]
Next, a method of using the lacrimal canal obstruction treatment device 1 configured as described above will be described with reference to FIG.
First, the tip of the lacrimal bougie 2 is placed in the recess 1c at one end of the treatment tool 1, and in this state, the one end is placed in the opening 16a of the lower canaliculus 16 . Then, by pushing the rear end side of the lacrimal passage bougie 2 toward the distal end side, the treatment tool 1 is pushed in the pushing direction of the lacrimal passage bougie 2 via the recess 1c. As a result, one end of the lacrimal canal obstruction treatment device 1 is inserted through the opening 16a of the lower lacrimal canaliculus 16, and by further depressing the lacrimal tract bougie 2, one end of the treatment device 1 has tears. Through the sac 13 and the nasolacrimal duct 14, it reaches the inferior nasal passage 15.
[0017]
Next, the tip of the lacrimal passage bougie 2 is placed in the recess 1c at the other end of the treatment tool 1, and in this state, the other end is placed in the opening 17a of the upper canaliculus 17. Let it. Then, by pushing the lacrimal bougie 2 in the same manner as described above, the treatment tool 1 is pushed in the direction of pushing the lacrimal bougie 2 through the recess 1c. As a result, the other end of the lacrimal canal obstruction treatment device 1 is inserted through the opening 17a of the upper lacrimal canaliculus 17, and when the lacrimal bougie 2 is further pushed in, the other end of the treatment device 1 becomes lacrimal. Through the sac 13 and the nasolacrimal duct 14, it reaches the inferior nasal passage 15.
[0018]
As described above, the lacrimal canal obstruction treatment device 1 is arranged in the lower lacrimal canaliculus 16 and the upper lacrimal canaliculus 17 as well as in the lacrimal sac 13, the nasal lacrimal canal 14 and the inferior nasal passage 15.
Then, both ends of the lacrimal canal obstruction treatment device 1 that has reached the inferior nasal passage 15 are tied up, and a portion extending from the knot to each end is cut at an appropriate position. Is fixed.
[0019]
As described above, according to the lacrimal obstruction treatment device 1 according to the present embodiment, since the recess 1c is formed, when the treatment device 1 is inserted into the lacrimal canaliculi 16 and 17, the lacrimal passage bougie 2 is inserted. Is engaged with the recess 1c, and in this state, the lacrimal bougie 2 is pushed in, thereby realizing a configuration in which the treatment tool 1 is pushed in the pushing direction of the lacrimal bougie 2 via the recess 1c. Can be. Therefore, although the lacrimal canaliculi 16 and 17 are minute and the therapeutic device 1 is a soft elastic material having flexibility, the therapeutic device 1 is easily and reliably inserted into the lacrimal canaliculi 16 and 17. be able to.
[0020]
Further, since the surface of the recess 1c is different in color from the outer surface of the other part of the lacrimal obstruction treatment device 1, the position of the recess 1c can be easily and reliably grasped, and the lacrimal bougie 2 can be grasped. It is easy to accurately arrange the tip of the device on the treatment tool 1.
[0021]
Next, a second embodiment of the present invention will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
[0022]
As shown in FIG. 3, the lacrimal canal obstruction treatment device 20 according to the second embodiment is directed to the respective end surfaces 20 a and 20 b at substantially the center in the radial direction at both ends, and is opened at these end surfaces 20 a and 20 b. A notch 20c is formed as an engaged portion that engages with the distal end of the lacrimal passage bougie 2 which is not configured. The incision 20c has an inclination angle of about 45 ° toward the end surfaces 20a and 20b with respect to the outer surface of the lacrimal canal obstruction treatment device 20, and the depth in the inclination direction is about 0.45 mm. It is open at a position of about 2 mm to 3 mm from each end face 20a, 20b. In the outer surface of the treatment device 20 for lacrimal canal obstruction, the peripheral portion where the cut 20c is open is different in color from the outer surface of the other portion of the treatment device 1. Therefore, similarly to the first embodiment, the position of the cut 20c can be easily and reliably grasped, and the tip of the lacrimal bougie 2 is accurately and easily arranged in the cut 20c as shown in FIG. This has the same effects as the lacrimal obstruction treatment device according to the first embodiment.
[0023]
The technical scope of the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the spirit of the present invention.
[0024]
【The invention's effect】
As is clear from the above description, according to the lacrimal canal obstruction treatment device of the present invention, the lacrimal canaliculus is narrow, and in spite of the fact that the lacrimal canal obstruction treatment device is a soft elastic material having flexibility. This treatment device can be easily inserted into the canaliculus.
[0025]
Further, since the surface of the recess or the periphery of the cut is different in color from the outer surface of the other part of the treatment tool, the position of the recess or cut can be easily and reliably grasped, Accurately placing the tip of the lacrimal bougie on the treatment device can be easily performed.
[Brief description of the drawings]
FIG. 1 is an enlarged view showing a use state of a lacrimal canal obstruction treatment device in a first embodiment according to the present invention.
FIG. 2 is a schematic view showing an example of a use state of the lacrimal canal obstruction treatment device in one embodiment according to the present invention.
FIG. 3 is an enlarged view showing a use state of the lacrimal canal obstruction treatment device in the second embodiment according to the present invention.
[Explanation of symbols]
1,20 Lacrimal canal obstruction treatment tool 1c Depression 20c Incision

Claims (3)

An instrument for treating lacrimal canal obstruction from a lacrimal canaliculus to a nasolacrimal duct, formed in a rod-like body by an elastic member,
A device for treating lacrimal canal obstruction, characterized in that a concave portion or a notch is formed at both ends, which is open at the side surface but not at the end surface. The device for treating lacrimal canal obstruction according to claim 1,
A lacrimal obstruction characterized in that the peripheral portion of the cut on the surface of the recess or the outer surface of the lacrimal obstruction treatment device is different in color from the outer surface of the other portion of the lacrimal obstruction treatment device. Therapeutic tools. An instrument for treating lacrimal canal obstruction from a lacrimal canaliculus to a nasolacrimal duct, formed in a rod-like body by an elastic member,
A device for treating lacrimal canal obstruction, wherein an engaged portion that engages with a tip of a lacrimal canal is formed at both ends.

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