KR20160041304A - Apparatus for cutting of facial bone - Google Patents

Abstract

The present invention relates to a facial bone cutting device which, when a cheekbone or a lower jaw portion is cut, prevents a cutting saw from being deviated from a cutting position or passing through a cut surface to damage neighboring tissues such as muscles or nerves above the cutting position or the cut surface by means of upper and lower parts of the cutting saw, accurately fixes the cutting saw at a position where the bone is to be cut, and easily and safely protects the neighboring tissue. The facial bone cutting device comprises: a lower part in which one side surface, the other side surface, and an upper surface are opened to be provided in the form of ′C″, and has a catching part for closing a portion of one side surface thereof and an insertion groove defined therein; an upper part provided corresponding to an upper side of the lower part and in which one side surface, the other side surface, and a lower surface are opened to be provided in the form of ′C′; hand grips respectively coupled to ends of the upper and lower parts in the longitudinal direction, having a pressing plate provided on one end thereof, and crossing-coupled at a middle portion thereof; and a cutting saw inserted between the upper part and the lower part to repeatedly move back and forth and cut an object to be cut, and having a catching end diagonally provided on one side end thereof to be inserted into the insertion groove and caught by the catching part provided on the lower part not to move forward.

Description

[0001] Apparatus for cutting facial bone [0002]

The present invention relates to a facial bone cutting device, and more particularly, to a facial bone cutting device that cuts a cheekbones or a mandibular angle portion when a cutting saw moves away from a cutting position or passes through a cut surface to damage surrounding tissues such as muscle or nerves, The present invention relates to a facial bone cutting device for preventing a bone cut through a lower portion of a bone and for securing a position of a cutting saw precisely at a position where a bone is to be cut,

Generally, when cutting a bone, the skin is widely peeled off in order to make it easy to see where it is to be cut, a line is drawn on the bone, the cut is cut with a cutting saw, or is cut through a complicated guide device.

In the case of the slit positioning tool disclosed in U.S. Patent No. 6,551,325, which is an embodiment of such a bone cutting apparatus, the slit positioning tool has three infrared reflectors, a body, and two plates of different thickness inserted into the slit.

The position of the cutting block can be adjusted by using the position adjusting means after inserting the plate into the slit and the position of the slit positioning tool can be recognized by the surgical navigation device so that the position of the slit can be adjusted by the surgical navigation device And the position of the recognized slit can be displayed on the monitor by superimposing on the image previously stored by the surgical navigation device or by the cut surface where the slit is located.

However, since the conventional slit positioning tool is inserted into the slit of the cutting block, there is a problem in that, when various kinds of cutting blocks are used, a separate slit positioning tool must be used for each cutting block. In order to partially solve this problem, two plates having different thicknesses are used, but it is difficult to have versatility in such a configuration.

In addition, since the conventional slit positioning tool is inserted in the slit of the cutting block, the physician can check the cutting plane through the monitor, but the problem of the slit positioning tool acting as an obstacle factor in grasping the relationship between the actual slit and the cutting plane I have.

In addition, since the slit positioning tool has a complicated structure, it takes a long time to cut and cut the bone, and since the incision is made wide in order to cut the bone, the operation becomes extensive and general anesthesia is performed There has been a problem in that the skin of the site to be cut is widely cut to cut the bone.

In this case, there is a problem that a large amount of edema occurs at the incision site, and the cutting saw touches or damages the muscles or nerves and takes a long time for the treatment. When the guide is not used, There is a problem that the cutting saw slips at the surface of the bone to damage the bone, which results in a long time for cutting the bone.

Related prior arts include Korean Patent Registration No. 10-0906093 and US Publication No. 6,551,325.

It is an object of the present invention to prevent the cutting top from passing through the cutting position or passing through the cut surface and damaging surrounding tissues such as muscles or nerves on the upper and lower sides when cutting the cheekbones or the lower angle portion, The present invention is to provide a facial bone cutting apparatus that fixes the position of a cutting saw precisely at a position to be cut and easily and safely protects the position.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems.

In order to achieve the above object, according to the present invention, there is provided an apparatus for cutting a facial bone, comprising: a first face, a second face, and an upper face; And an upper portion formed in a 'C' shape with one side surface, the other side surface and the lower side surface being opened, and a pair of upper and lower portions respectively coupled to one side in the longitudinal direction of the upper portion and the lower portion, A knob having a stop plate formed at an end thereof and interrupted and coupled to the knob; and a stopper inserted between the upper and lower portions to cut the object bone by repeating forward and backward movement, And a cutting saw having a latching end formed at one end thereof in a diagonal direction so as to be blocked by forward movement.

Specifically, a fixed body for fixing the handle is formed between pressing plates of the handle.

The lower part has a locking part formed on one side surface thereof so as to close one side surface in a lower inner diagonal direction from a middle surface of the lower surface of the lower part. Is a facial bone cutting device.

The present invention as described above prevents the cutting saw from passing through the cutting position or passing through the cut surface and damaging surrounding tissues such as muscles or nerves on the bone when cutting the bone, The position of the cutting saw is precisely fixed and protected, and the cutting saw can be safely moved between the upper and lower portions to cut the bone, thus making it easy to cut the bone safely in a short time.

In addition, since the dissection of the incision or the operation site is minimized, the partial anesthesia can be made necessary for the general anesthesia, and edema and scarring are minimized and the recovery is very fast.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing the entire configuration of a facial bone cutting apparatus according to an embodiment of the present invention; FIG.
FIG. 2 is a sectional view showing an upper and a lower part of a facial bone cutting apparatus according to the present invention.
FIG. 3 is a bottom plan view of the lower part of the facial bone cutting apparatus according to the present invention.
4 is a side view of a facial bone cutting device according to the present invention.
5 is a view showing a cut top of a facial bone cutting apparatus according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 is a view showing an apparatus for cutting a facial bone according to an embodiment of the present invention, in which a lower portion 20 is formed with an insertion groove 22 into which a cutting saw 40 for cutting a bone is inserted; An upper portion 10 engaging with the lower portion 20 so as not to project the cutting saw 40 upward; A handle 30 coupled to one side of the upper portion 10 and the lower portion 20 to transfer the upper portion 10 and the lower portion 20; And a cutting saw (40) inserted into the insertion groove (22) to cut the bone through forward and backward movement.

As shown in FIGS. 1 to 4, the lower portion 20 is formed in a "C" shape with one side surface, the other side surface and the upper side surface being opened, and is closed in a downward inward direction from the stop of one side, 21 are formed.

As a result, the one end is removed in a diagonal direction so that the cutting saw 40 having the engaging end 41 is caught by the engaging portion 21 so as not to advance to one side.

This prevents the cutting saw 40 from being detached from the insertion groove 22 of the lower portion 20 due to the engagement end 41 and the engagement portion 21 to damage muscles.

3 and 4, the upper side of the lower portion 20 is centered along the longitudinal direction, and a locking protrusion 23 is formed from both side walls to the center of the upper portion so as to be formed on the lower side of the cutting saw 40 So that the cutting saw 40 is not released to the upper side of the lower portion 20.

The upper portion 10 is formed in a 'C' shape with a lower side, one side and the other side opened.

The upper part 10 is fixedly engaged with the lower part 20 and the upper part of the upper part 10 and the upper part of the lower part 20 so as not to slip on the bone when the part is bitten. 60 may be combined.

When the cutting saw 40 is moved in the insertion groove 22 of the lower portion 20 to cut the bone, it comes into contact with the upper portion 10 so that the cutting saw 40 does not damage the muscles.

A handle 30 capable of vertically conveying the upper and lower portions 10 and 20 is coupled to one side of the upper portion 10 and the lower portion 20 in the lengthwise direction, Lt; / RTI >

The grip 30 is coupled with the stop 30 and the push plate 31 is formed at the other end of the grip 30. The grip 30 is fixed between the upper and lower grips 30 and 30, (10) and a lower portion (20) are formed with a fixing body (50) for fixing the bones in a door state.

The fixing body 50 is formed in a plate shape and has teeth 44 formed on its inner side and each fixing body 50 formed on the upper and lower portions 10 and 20 is engaged with the teeth 44, (30) is prevented from being opened.

Such a fixing body 50 may employ a general constitution such as an elastic body to be contracted.

5, the cutting saw 40 inserted into the insertion groove 22 of the lower portion 20 is formed with a hooking step 41 formed at one end thereof so as to be sloped from one end to the inside of the bottom, And protruding portions 42 are formed on both sides of the lower side so as to be engaged with the engaging protrusions 23 formed on the upper side of the lower portion 20 so as to be inserted into the insertion grooves 22 of the lower portion 20, The handle 43 is formed long at the other end, and the teeth 44 for cutting the bone are formed at the upper end.

With this configuration, when the lower portion 20 and the upper portion 10 are fixed by fixing the bones, the user cuts the bones by transporting the cutting saw 40 in the anteroposterior direction.

At this time, the cutting saw 40 is prevented from being detached from the lower portion 20 due to the engagement portion 21 and the engagement protrusion 23 formed on the lower portion 20, thereby preventing the muscle from being damaged.

A method of cutting a bone using the structure of the present invention is as follows.

The upper portion 10 and the lower portion 20 are spaced apart from each other and the upper portion 10 and the lower portion 20 are positioned on the portion to be cut of the bone and then the knob 30 is pressed The upper portion 10 and the lower portion 20 fix the bone by being fixed.

At this time, the fixing bodies 50 are engaged with the teeth 44 so that the knob 30 is fixed in a pressed state.

When the upper portion 10 and the lower portion 20 are fixed in this manner, the cutting saw 40 is inserted into the insertion groove 22 of the lower portion 20, and then the cutting saw 40 is automatically or manually transferred in the forward and backward directions The bone is cut.

The present invention can be used when cutting an angular jaw bone. In cutting such an angulated jaw bone, the jaw bone should be roundly curved to be cut. Therefore, when cutting a region, the cutting saw 40 must be bent, The cutting tip 40 is formed in a bent shape so that the cutting tip 40 is reciprocated in the upper portion 10 and the lower portion 20, .

As described above, according to the present invention, when the bone is cut, the cutting saw moves away from the cutting position or passes through the cut surface to prevent the upper and lower devices from damaging the surrounding tissues such as muscles and nerves, So that the cutting saw can be safely moved between the upper and lower portions to cut the bone, thereby making it easy to cut the bone safely in a short time.

In addition, minimizing the dissection of the incision or surgical site can make partial anesthesia possible, which requires previous general anesthesia, and minimizes edema and scarring, resulting in very rapid recovery.

The above-described facial bone cutting apparatus is not limited to the construction and operation of the embodiments described above. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

10: upper
20: Lower part 21:
22: insertion groove 23: latching jaw
30: Handle 31:
40: Cutting saw 41:
42: protruding portion 43:
44: toothed
50: Fixture 60: Slip prevention body

Claims (3)

A lower portion formed with a U-shape and having a side surface, an opposite side surface and an upper side surface, a latching portion for closing a portion of one side surface, and an insertion groove formed therein;
An upper portion formed to correspond to the upper side of the lower portion and having one side surface, the other side surface and the lower side surface are opened to form a "C"shape;
A handle coupled to one side of the longitudinal direction of the upper part and the lower part, having a push plate at an end thereof, And
The bone is inserted into the upper and lower portions of the bone to cut the object bone and inserted into the insertion groove in the lower portion to be hooked on the lower portion of the lower portion to prevent the forward movement. A cutting tool comprising: a cutting blade; The method according to claim 1,
And a fixture for fixing the handle is formed between the pushing plates of the handle. The method according to claim 1,
The lower surface of the lower surface is formed with a locking portion for closing one side in a lower inner diagonal direction from a stop on one side, a center opening on the upper side in the longitudinal direction, and a locking protrusion formed on both upper and lower side walls, Cutting device.

Images