KR20220135115A - Skull piece fixation device - Google Patents

Abstract

The present invention relates to a cranial bone piece fixing apparatus, and more specifically, to a cranial bone piece fixing apparatus enabling a cut cranial bone piece to be sutured and fixed to a patient's cranium, after a brain surgery of the patient having damage or a disease in the head. To this end, the present invention comprises: a bottom plate member formed with a certain elasticity and closely attached to a lower surface of a connection portion of connecting a cranial bone piece and a cranium to be sutured; a pair of guide members formed by extending upward from an upper surface of the bottom plate member, having a plurality of anti-backward protrusions formed on one side thereof, and having locking protrusions formed on upper ends thereof; a cover member coupled to the guide members so as to be lowered; a handle member having a plurality of locking grooves formed on inner surfaces of both sides thereof and coupled with the locking protrusions of the guide members; and a pressing member coupled to an upper side of the cover member coupled to the guide members and pressing the cover member downward. The handle member is divided into two ends, a plurality of concave-convex parts are formed on an upper end of one end, and locking pieces are formed on an upper end of the other end. The locking pieces are caught on the concave-convex parts so that one end and the other end of the handle member are mutually coupled. On the other hand, as the locking pieces are separated from the concave-convex parts, one end and the other end of the handle member are separated from each other.

Description

Skull piece fixation device

The present invention relates to a cranial fragment fixing device, and more particularly, to a cranial fragment fixing device for fixing an incised cranial fragment with a patient's skull by sutures after head surgery of a patient with a head injury or disease is completed. to be.

In general, a patient with a head injury or a brain disease performs brain surgery on the inner surface of the skull after an incision is made in the skull.

Surgery performed by incision of the skull is performed by incision of the skull closest to the patient's affected area, separating the incised skull fragment, performing the necessary surgery on the patient through the incision, and then suturing the separated skull fragment back to the patient's skull. Fix and complete the operation.

In the case of surgery performed by incision of the skull as described above, as a method of suturing the incised skull piece to the patient's skull again, a hole is made in the skull and the wire is tightened to fix it, or a fixing screw is put through a hole drilled in the iron plate by applying a fixing iron plate. The method of fixing by inserting into the skull was used.

However, the fixing device using a wire has the disadvantage of having to drill a large number of holes in each bone fragment and taking a relatively long time. When taking an MRI (magnetic resonance imaging), the image of the part with the fixing screw cannot be taken clearly, so it is difficult to understand the exact surgical procedure.

In order to solve this problem, US Patent No. 9265530 is disclosed.

In the case of the prior art, the device for fixing the skull piece is manufactured without using a metal material, and after the fixing of the skull and the skull piece is completed by the support plate and the closure plate, the components for pressing the support plate and the closure plate are using scissors, etc. By cutting it, it is possible to easily complete the procedure of the skull fragment fixing device.

However, in the case of the prior art described above, there is a risk of surgery as a sharp member such as scissors is used to cut unnecessary parts after installation of the device for fixing the skull fragment is completed, and the process of removing unnecessary parts is not rapid. Therefore, there was a problem that it was difficult to perform a prompt operation.

Therefore, there is a need to develop a cranial fragment fixing device that can be sutured in a short time without using a metal material in suturing the skull fragment to the skull.

Republic of Korea Patent Publication No. 10-2004-0101736 (published on Dec. 3, 2004) US Registered Patent No. 9265530 (published on February 23, 2016)

In the present invention, the handle member is divided into both ends so that the coupling and separation of one end and the other end of the handle member are easily made by the concavo-convex portion and the engaging piece, and when the cover member is completely pressed downward and is in close contact with the skull and the skull, the cover member By cutting one side of the guide member exposed to the upper side of the skull and cutting it to both sides, a cutting device such as scissors is not required to remove the guide member. As a sharp member such as scissors is used to cut the wire used for this purpose, there is a risk of the operation, and the cutting process is not fast, so that the rapid operation is difficult.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The skull fragment fixing device of the present invention for achieving the above object,

A base plate member that is formed to have a certain elasticity and is in close contact with the lower surface of the connection part between the skull and the skull piece to be sutured, a pair of extensions extending upward from the upper surface of the base plate member, a plurality of anti-retraction protrusions are formed on one side, and a stumbling block at the upper end A guide member in which a group is formed, a cover member descently coupled to the guide member, a plurality of locking grooves are formed on the inner surfaces of both sides, and are coupled by the coupling of the locking protrusion of the guide member and the locking groove to the upper end of the guide member A handle member, a pressing member coupled to the upper side of the cover member coupled to the guide member to press the cover member downward;

The handle member is divided into both ends, a plurality of concave and convex portions are formed at an upper end of one end, and a locking piece is formed at an upper end of the other end,

The engaging piece is caught in the concave-convex portion so that one end and the other end of the handle member are coupled to each other, or the engaging piece is separated from the concave-convex portion so that one end and the other end of the handle member are separated.

In addition, the guide member is characterized in that when the cover member is completely pressed downward and is in close contact with the upper surface of the connection portion between the skull and the skull, a portion of the guide member exposed to the upper side of the cover member can be cut by folding both sides.

In addition, a pair of through grooves are formed in the pressing member, and an open portion having one side open is formed in the pair of through grooves, and the pressing member is coupled to and separated from the guide member through the opening. do.

In addition, the cover member is caught on the retraction preventing projection of the guide member, characterized in that a pair of anti-retraction engaging pieces for preventing the retraction of the cover member is formed.

In the present invention, the handle member is divided into both ends so that the coupling and separation of one end and the other end of the handle member are easily made by the concavo-convex portion and the engaging piece, and when the cover member is completely pressed downward and is in close contact with the skull and the skull, the cover member By cutting one side of the guide member exposed to the upper side of the body by cutting it to both sides, a cutting device such as scissors is not required to remove the guide member, so the operation of the skull piece fixing device can be performed quickly and safely.

In addition, since the skull fragment fixing device of the present invention does not use metal, the image of the part with the skull fragment fixing device is clearly captured when CT or MRI (magnetic resonance imaging) is taken to confirm the surgical progress in the postoperative recovery stage. can make it happen

1 is a perspective view showing the overall appearance of the skull piece fixing device according to an embodiment of the present invention.
FIG. 2 is a front view illustrating a state in which FIG. 1 is viewed from the front.
3 is a view showing a state in which the skull and the skull piece is sutured by the skull piece fixing device according to an embodiment of the present invention.
4 is a front view showing a state when the handle member is viewed from the front.
5 is a front view showing a state in which the concave-convex portion and the engaging piece formed on the upper side of the handle member of FIG. 4 are separated.
Figure 6 is a front view showing the state of the coupling groove formed on the side of the handle member of Figure 3;
7 is a front view illustrating a state when the guide member is viewed from the front.
8 is a perspective view showing the overall appearance of the pressing member.
9 is a front view illustrating a state in which the cover member is viewed from the front.

Prior to describing the embodiments of the present invention in detail, it should be noted that the embodiments of the present invention are provided to completely explain the present invention to those of ordinary skill in the art.

Accordingly, the claims of the present invention are not limited by the following examples and drawings.

In addition, the drawings in the present specification are for the purpose of clearly understanding the descriptions by reference to the drawings, so there are some exaggerated parts. Accordingly, there may be differences between the drawings shown in the present invention and the actual product.

Hereinafter, the present invention will be described with reference to the drawings. However, in order for the description of the present invention to be concise and clear, the cranial fragment fixing device is generally described with reference to FIG. 1 , and then the components of the cranial fragment fixing device are described in detail with reference to FIGS. 1 to 9 . Explain.

1 is a perspective view of a cranial fragment fixing device according to an embodiment of the present invention.

The cranial fragment fixing device 1 according to an example of the present invention is a device used to suture the incised cranial fragment (B) and the patient's skull (A) during head surgery of a patient with a head injury or brain disease to be.

In addition, in the skull piece fixing device 1 of the present invention, the handle member 40 is divided into both ends, and one end with the concave-convex portion 43 and the other end with the locking piece 45 are easily coupled and separated. After completing the suture of the skull (A) and the skull piece (B) by close contact of the cover member (30) and the bottom plate member (10), the handle member (40) is separated into both ends to form the cover member (30). By cutting and cutting a part of the guide member 20 exposed upwards to both sides, the handle member 40 and the guide member 20 are removed quickly and safely, so that the skull piece fixing operation can be performed quickly and safely.

As such, the skull piece fixing device 1 includes a bottom plate member 10 , a guide member 20 , a cover member 30 , a handle member 40 , and a pressing member 50 .

Hereinafter, with reference to FIGS. 1 to 9, the components constituting the cranial fragment fixing device will be described in detail.

The bottom plate member 10 is a member that is in close contact with the lower surface of the portion where the skull A and the skull piece B to be sutured are connected to form the bottom plate. The bottom plate member 10 is formed with a plurality of projections upward on its outer peripheral surface can be firmly attached to the skull (A) and the skull piece (B).

The bottom plate member 10 is formed to have a certain elasticity and can be deformed to correspond to the shape of the skull A of various types. Accordingly, the bottom plate member 10 can more firmly fix the skull (A) and the skull piece (B).

The guide member 20 may be formed to extend on the upper surface of the bottom plate member 10 .

The guide member 20 is formed to extend upward from the upper surface of the base plate member 10 described above, and a plurality of retraction prevention protrusions 21 may be formed on one side thereof.

The retraction prevention protrusion 21 is formed to be inclined downward so that the cover member 30 to be described later can advance downward, but cannot retract. Therefore, the cover member 30 is firmly in close contact with the above-described bottom plate member 10, it is possible to firmly fix the skull (A) and the skull piece (B).

Locking projections 23 may be formed on both upper ends of the guide member 20 .

The locking protrusion 23 may be coupled to the locking groove 41 of the handle member 40 to be described later so that the guide member 20 and the handle member 40 are coupled.

The guide member 20 may be formed of a material and strength that can be easily broken when bent to one side.

That is, the guide member 20 is a guide exposed to the upper side of the cover member 30 when the cover member 30 to be described later is completely pressed to the lower side and is in close contact with the upper surface of the connection portion of the skull (A) and the skull piece (B). By breaking a part of the member 20 by breaking it on both sides, it is possible to cut and separate an unnecessary part of the guide member 20 .

A cover member 30 may be coupled to the guide member 20 to be descendable. As described above, the cover member 30 is only capable of advancing to the lower side by the retraction prevention protrusion 21 and cannot be retracted, so that only the descent is possible.

The cover member 30 is formed to have a certain elasticity in the same manner as the above-described bottom plate member, and may be deformed to correspond to the shape of the skull A of various types. Accordingly, the cover member 30 can more firmly fix the skull (A) and the skull piece (B).

A pair of anti-retraction engaging pieces 31 may be formed on the cover member 30 . The anti-retraction hooking piece 31 is formed in a shape to be caught by the retraction prevention protrusion 21 of the guide member 20 described above. (21) and can be prevented from retreating. Therefore, the cover member 30 should be lowered only when the lowering of the cover member 30 is required during the skull suturing procedure using the cranial fragment fixing device 1 of the present invention.

A handle member 40 may be coupled to the upper end of the guide member 20 .

A plurality of locking grooves 41 may be formed on the inner surfaces of both sides of the handle member 40 . Accordingly, the handle member 40 may be coupled to the upper end of the guide member 20 by coupling the locking protrusion 23 of the guide member 20 and the locking groove 41 of the handle member 40 .

The handle member 40 may be used as a handle during the operation of the skull piece fixing device 1 . Accordingly, a doctor who operates the skull fragment fixing device 1 can easily operate the skull fragment fixing device 1 by holding the handle member 40 with a finger.

The handle member 40 may be formed by being divided into both ends.

The handle member 40 divided into both ends may have a plurality of concave-convex portions 43 formed at an upper end of one end, and a locking piece 45 caught by the above-described concave-convex portion 43 may be formed at an upper end of the other end.

That is, in the handle member 40 divided into both ends, the engaging piece 45 formed at the other end is caught by the plurality of concavo-convex portions 43 formed at one end, so that one end and the other end of the handle member 40 are mutually coupled, or one end and the One end and the other end of the handle member 40 are separated by pressing the handle member 40 to which the other end is coupled by hand so that the engaging pieces 45 caught in the plurality of uneven portions 43 are separated from the uneven portions 43 . it can be

Therefore, as the handle member 40 is easily coupled and separated by the concave-convex portion 43 and the locking piece 45, the cover member 30 and the bottom plate member 10 during the operation of the skull piece fixing device 1 ) in close contact with the skull (A) and the skull piece (B), and then the handle member 40 is separated on both sides and a portion of the guide member 20 exposed to the upper side of the cover member 30 is bent to both sides. By breaking and cutting, unnecessary parts can be easily removed to complete the skull suture procedure. This makes it possible to perform a quick and safe operation as it is not necessary to cut through a sharp member such as scissors for separation of the guide member 20 and the handle member 40 .

A pressing member 50 may be coupled to the upper side of the cover coupled to the guide member 20 . The pressing member 50 is in close contact with the above-described bottom plate member 10 as much as possible by pressing the lower cover member 30 to the lower side by pressing the lower cover member 30 to the lower side by the doctor operating the skull piece fixing device 1 pressing it downward with a finger. The skull (A) and the skull piece (B) can be fixed by the (30) and the bottom plate member (10).

That is, the pressing member 50 is configured to press the cover member 30 downward.

A pair of through grooves 51 may be formed in the pressing member 50 . The guide member 20 is coupled to the pair of through grooves 51 so that the pressing member 50 can lift the guide member 20 upward and downward.

In addition, the pair of through grooves 51 may be formed with an opening 511 having one side open.

That is, as one side of the through groove 51 is opened, the pressing member 50 can be easily coupled to or separated from the guide member 20 through the opening 511 .

Therefore, the pressing member 50 presses the cover member 30 downward so that the skull A and the skull piece B are fixed, and then the pressing member 50 can be easily separated from the guide member 20 Accordingly, the guide member 20, the handle member 40, and the pressing member 50 are easily separated so that the operation of the skull piece fixing device 1 can be performed quickly and safely without separate cutting equipment.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: cranial fragment fixation device
10: bottom plate member
20: guide member
21: retraction prevention projection 23: jamming projection
30: cover member 31: anti-retraction piece
40: handle member
41: jamming groove
43: concavo-convex portion 45: jamming piece
50: pressing member
51: through groove 511: open part
A: skull B: skull fragment

Claims (4)

The bottom plate member 10 is formed to have a certain elasticity and is in close contact with the lower surface of the connection part between the skull (A) and the skull piece (B) to be sutured;
a guide member 20 extending upward from the upper surface of the bottom plate member 10 and having a plurality of anti-retraction protrusions 21 formed on one side thereof and a locking protrusion 23 formed at the upper end thereof;
a cover member 30 that is descently coupled to the guide member 20;
A plurality of locking grooves 41 are formed on the inner surfaces of both sides of the handle member to be coupled to the upper end of the guide member 20 by the coupling of the locking protrusion 23 of the guide member 20 and the locking groove 41 . (40);
and a pressing member 50 coupled to the upper side of the cover member 30 coupled to the guide member 20 to press the cover member 30 downward.
The handle member 40 is divided into both ends, a plurality of concavo-convex portions 43 are formed at the upper end of one end, and a locking piece 45 is formed at the upper end of the other end,
The engaging piece 45 is caught by the concave-convex portion 43 so that one end and the other end of the handle member 40 are coupled to each other, or the engaging piece 45 is separated from the concave-convex portion 43 to separate the handle member 40 . ) of the skull piece fixing device, characterized in that the one end and the other end are separated. According to claim 1,
The guide member 20 is a guide member exposed to the upper side of the cover member 30 when the cover member 30 is completely pressed downward and is in close contact with the upper surface of the connection part of the skull (A) and the skull piece (B) ( 20) Skull piece fixing device, characterized in that it can be cut by bending a part of both sides. According to claim 1,
A pair of through grooves 51 are formed in the pressing member 50,
The pair of through-groove 51 is formed with an opening 511 having one side open,
The pressure member (50) is a skull piece fixing device, characterized in that the coupling and separation with the guide member (20) through the opening (511). According to claim 1,
A pair of anti-retraction engaging pieces 31 are formed on the cover member 30 to prevent the retraction of the cover member 30 by being caught by the retraction prevention protrusion 21 of the guide member 20. cranial fragment fixation device.

Images