KR20230029447A - Spine insert and an medical instrument for implanting an spine insert - Google Patents

Abstract

The present invention relates to an intervertebral insert and a medical instrument for implanting the same, and more particularly, to an intervertebral insert which can minimize damage to interspinous ligament, can prevent fracture of spinous processes, and can support the posterior arch of spine, to facilitate a medical procedure, and a medical instrument for implanting the same.

Description

Intervertebral insert and a medical instrument for implanting it {Spine insert and an medical instrument for implanting an spine insert}

The present invention relates to an intervertebral insert and a medical device for implanting the same, and more particularly, minimizes damage to the interspinous ligament located above and below the spinous process and reinforces the intervertebral ligament to facilitate the procedure for the purpose of reducing intervertebral instability. It relates to an intervertebral implant that can be used and a medical device for implanting the same.

The spine not only plays a role in the stability and balance of the body, but also plays an important role in protecting the spinal nerves that lead from the brain to the limbs, that is, the spinal cord. The passage through which the spinal cord passes is called the spinal canal. Spinal stenosis is a disease in which the passage narrows due to various reasons such as intervertebral instability, compressing the nerve, causing inflammation and pain.

In the case of spinal stenosis patients accompanied by such instability, the spinal cord under pressure must be released through surgical treatment. There are various methods of surgical treatment, such as spinal screw fixation or inserting a prosthetic device between the spinal spinous processes to maintain a distance between the spinal spinous processes.

Various treatment methods for surgery for patients with spinal stenosis have been developed according to the development of medical technology, and various prosthetic devices for maintaining the distance between the spinous processes of the spine are also being developed.

On the other hand, after inserting the prosthetic device between the spinal spinous processes, a fixing strap is used to fix the prosthetic device. The fixing strap passes through the interspinous ligament (ISL) located on the upper and lower sides of the spinous process of the spine and pulls it to correct intervertebral instability and fix the prosthetic device. At this time, the spinous process may be damaged or the interspinous ligament may be damaged such as being torn by a fixing strap that is pulled. Accordingly, a technique for implanting a prosthetic device by minimizing damage to the body is required.

As a prior art, Korean Patent Registration No. 10-1013094 "support between spinous processes and fixing method thereof" is described.

Therefore, the present invention has been proposed to improve such conventional problems, and more specifically, restores the function of the removed interspinous ligament, minimizes the risk of spinous process fracture and damage to the interspinous ligament, and intervertebral insertion that can facilitate the procedure It is an object of the present invention to provide a body and a medical device for transplanting and soft fixing the same.

In order to solve the above problems, an intervertebral insert according to an embodiment of the present invention fixes a spacer inserted between vertically adjacent vertebral arches and a spinal spinous process located on the front side of the spacer, and the spacer is externally It includes a fixing band that prevents separation, and the fixing band extends to a predetermined length and is formed in an arc shape at both ends of the band part and the band part wrapping the circumference of the vertically adjacent spinal spinous processes in an '8' shape. It may include a hook portion passing through the interspinous ligament between the spinal spinous processes.

In addition, the spacer body has a flat rear surface to prevent damage to the dura; A pair of upper wings formed to have a length upward on the upper surface of the body and a pair of lower wings formed to have a length downward on the lower surface of the body, wherein the upper wings and the lower wings It is characterized in that it prevents spinal cord damage by not moving backward by wrapping the vertically adjacent spinal spinous process spinous processes and the upper and lower larynx and supporting the vertebral larynx.

In addition, the main body may include side through-holes penetrating the side surface to allow the fixing band to pass through the side, and upper and lower through-holes penetrating the lower surface from the top surface to allow the fixing band to pass in the vertical direction.

In addition, the upper wing portion is characterized in that formed longer than the lower wing portion.

In addition, the intervertebral insert may further include a fixing means into which the fixing band is inserted and fixed.

In addition, the fixing means includes a housing having a hollow interior and having a through side and a screw hole formed on an upper surface, and a screw screwed into the screw hole while the screw head is located inside the housing, the screw It is characterized in that the distal end of the fixing band is fixed due to the screw head while the hexagonal groove provided at the top is rotated and inserted into the screw hole.

On the other hand, according to the first embodiment of the present invention, an intervertebral insert including a spacer inserted between vertically adjacent vertebral arches and a fixing band for fixing the spinal spinous process and the larynx and preventing the spacer from escaping to the outside A medical device for implantation is formed to have a predetermined length, a rotating bar having a first hole through which the fixing band passes on one side and a rotating body formed in a 'T' shape on the other side; The rotation bar is accommodated, a tube having a second hole on one side corresponding to the first hole and a handle on the other side, and a support formed in a form surrounding the tube between the second hole and the handle and supported by the spinous process of the spine. can include

In addition, the rotating bar may include a rotating groove formed along an outer circumferential surface, and the tube may include a rotating protrusion formed along an inner circumferential surface and inserted into the rotating groove to rotate.

In addition, in the medical device for implanting an intervertebral insert according to the second embodiment of the present invention, the rotating bar is formed on the outer circumferential surface, and includes guide protrusions formed in pairs at opposite positions, and the tube is constant along the inner circumferential surface. It has a length, and may include a pair of guide grooves in which the guide protrusion is inserted and moved.

In addition, in the medical device for implanting the intervertebral insert according to the third embodiment of the present invention, the rotating body and the handle may include a display unit indicating a position where the first hole and the second hole correspond to each other.

In addition, in the medical device for implanting an intervertebral insert according to the fourth embodiment of the present invention, the first hole includes a coupling groove formed on one side to adjust the position of the inserted fixing band, and the second hole is It is formed on the other side, and may include a coupling protrusion for pressing and fixing the fixing band in contact with the coupling groove according to the rotation of the rotating body in a state where the fixing band is located in the coupling groove.

The intervertebral insert according to the embodiment of the present invention solves the problem that fractures of the spinous process frequently occur due to excessive load on the spinous process because the existing insert is located between the spinous processes, and the spacer is located between the posterior arch of the spine to two vertically adjacent Can support and space the dog's harem.

In addition, according to the intervertebral insert and the medical device for transplanting the intervertebral insert according to the present invention, the intervertebral insert can be implanted while effectively stabilizing the intervertebral ligament by minimizing damage to the intervertebral ligament.

In addition, the effects according to the embodiments of the present invention mentioned above are not limited to the described contents, and may further include all effects predictable from the specification and drawings.

1 (a) and (b) are front and side views of a human spine.
2 is an exemplary view showing a spacer of an intervertebral implant according to an embodiment of the present invention.
FIG. 3 is an exemplary view showing a view from the direction A of FIG. 2 .
4 is an exemplary view showing a state in which an intervertebral implant according to an embodiment of the present invention is implanted between spinous processes.
Figure 5 is a side view of Figure 4;
6 is an exemplary view showing a state in which the fixing band in FIG. 4 is fixed by a fixing means.
Figure 7 is a perspective view showing the state of the fixing means of Figure 4;
8 (a) and (b) are operational examples of FIG. 7 .
9 is a perspective view of a medical device for transplanting an intervertebral implant according to the first embodiment of the present invention.
10 is a side view of FIG. 9 .
Fig. 11 is an exploded perspective view of Fig. 9;
Figure 12 is a cross-sectional view of the tube of Figure 9;
(a) and (b) of FIG. 13 are operational examples of FIG. 9 .
14(a) and (b) are diagrams illustrating use of a medical device for transplanting an intervertebral insert according to an embodiment of the present invention.
15(a) and (b) are diagrams showing other usage examples of a medical device for implanting an intervertebral insert according to an embodiment of the present invention.
16(a) and (b) are cross-sectional views showing the internal structure of a medical device for implanting an intervertebral insert according to a second embodiment of the present invention.
17(a) and (b) are operational examples of a medical device for implanting an intervertebral insert according to a third embodiment of the present invention except for a support.
18 is an exploded side view showing a medical device for implanting an intervertebral implant according to a fourth embodiment of the present invention, except for a support.
19(a) to (c) are operational examples of FIG. 18 .

Hereinafter, the description of the present invention with reference to the drawings is not limited to specific embodiments, and various transformations may be applied and various embodiments may be applied. In addition, the content described below should be understood to include all conversions, equivalents, or substitutes included in the spirit and scope of the present invention.

In the following description, terms such as first and second are terms used to describe various components, and are not limited in meaning per se, and are used only for the purpose of distinguishing one component from another.

Like reference numbers used throughout this specification indicate like elements.

Singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "include", "include" or "have" described below are intended to designate that features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist. should be construed, and understood not to preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 19 attached.

Hereinafter, the direction toward the front of the spinal spinous process centering on the spinal spinous process is referred to as 'front', and the opposite direction is referred to as 'rear'. Accordingly, terms indicating directions such as 'left', 'right', 'upper' and 'downward' are defined as indicating respective directions based on the forward and backward directions.

1 (a) and (b) are front and side views of a human spine, FIG. 2 is an exemplary view showing a spacer of an intervertebral insert according to an embodiment of the present invention, and FIG. 3 is FIG. , FIG. 4 is an exemplary view showing an intervertebral implant according to an embodiment of the present invention implanted between spinous processes, and FIG. 5 is a side view of FIG. 4 .

Referring to FIG. 1 , the human spine into which the intervertebral implant 1 according to the embodiment of the present invention is inserted has a plurality of vertebrae (Body, B) and a plurality of spinal spinous processes located in front of the vertebrae (B). , SP), a spinal nerve (not shown) is located in the space between the spinal spinous process (SP) and the vertebral body (B). In addition, there is a transverse process (TP) on both sides of the spinal spinous process (SP), and a 'v'-shaped lamina (Lamana, L) is formed between the spinal spinous process (SP) and the transverse process (TP), there is. The spine includes the intervertebral disc (IVD) located between vertebrae (B) and the interspinous ligament (ISL) formed between the spinous processes (SP) of the spine.

In addition, the spine has a supraspinous ligament (not shown) and skin (not shown) in front of the spinal spinous process (SP) and the interspinous ligament (ISL). Here, the intervertebral disc (IVD) is a part commonly referred to as a 'disc'.

As the human spine ages, degenerative changes also occur in the spine, and as the distance between the spinal spinous processes (SP) decreases, the spinal spinous processes (SP) press on the spinal nerve (not shown). This is called spinal stenosis, and the present invention relates to an intervertebral insert for treating spinal stenosis.

Referring to FIGS. 2 to 5 , an intervertebral insert 1 according to an embodiment of the present invention may include a spacer 10 and a fixing band 20 .

First, the spacer 10 may be inserted into the vertically adjacent posterior arch of the spine (L) in order to restore the distance between the narrowed spinal spinous processes (SP).

The spacer 10 may be made of stainless steel, cobalt-chromium-molybdenum alloy, inert hard metal, titanium, plastic, PEEK, etc., and most preferably PEEK material. However, it is not limited to this, and it is harmless to the body and can be used as a material suitable for the human body.

The spacer 10 may include a body 11, an upper wing 12 and a lower wing 13.

The body 11 may have a flat rear surface to prevent damage to the dura. Here, the dura mater is the dura mater of the spine that is exposed after removing the interspinous ligament (ISL) to insert the spacer 10 and exists between the upper and lower posterior arches (L).

In addition, the main body 11 may be formed with a flat front surface, but is not limited thereto.

For example, when the fixing band 20 is located on the front of the main body 11, the front of the main body 11 is bent so that the fixing band 20 can be stably seated according to the shape of the fixing band 20. can be lost Accordingly, the front surface of the main body 11 may be curved in various forms such as vertical, horizontal, and cross-shaped.

The upper wing portion 12 is formed to have a length upward on the upper surface of the body 11, and may be formed as a pair. The upper wing portion 12 is preferably formed with an appropriate curvature along the insertion direction to match the shape of the upper spinal spinous process (SP) (hereinafter referred to as the upper spinous process (SP1)) among the vertically adjacent spinal spinous processes (SP), It is not limited to this. Accordingly, the upper wing portion 12 may wrap the lower surface of the upper spinous process (SP1) and may be supported in contact with the posterior arch (L).

The lower wing portion 13 is formed to have a length downward on the lower surface of the body 11, and may be formed as a pair. The lower wing portion 13 may come into contact with the lower spinal spinous process (SP) (hereinafter referred to as the lower spinous process (SP2)) of the vertically adjacent spinal spinous processes (SP).

In addition, the lower wing portion 13 may form a curvature so as to touch while wrapping the upper surface of the lower spinous process (SP2).

Accordingly, the lower wing portion 13 may wrap the lower surface of the upper spinous process (SP1), and may be supported in contact with the posterior arch (L).

That is, the spacer 10 is inserted in the form of wrapping the upper and lower conjoined spinous processes (SP) and the upper and lower concubines (L) while being supported in contact with the conjunctiva (L), dispersing the force applied to the spinous process (SP) and spinous process (SP) not only can prevent fractures, but also prevents spinal cord damage by not moving backward and maintains the distance between the upper and lower adjacent spinous processes (SP).

In addition, the upper wing portion 12 may be formed longer than the lower wing portion 13. The upper wing part 12 is formed longer than the lower wing part 13 to maintain the distance between the upper and lower spinal spinous processes SP1, so that the upper spinous process SP1 can be easily lifted and supported.

However, it is not limited thereto, and the upper wing 12 and the lower wing 13 may be formed to have the same length according to the user's request, and the lower wing 13 may be formed longer than the upper wing 12. can

As such, the spacer 10 is formed so that the upper wing 12 and the lower wing 13 are symmetrical about the main body 11 to support the compressive force of the upper spinous process SP1 and the lower spinous process SP2 in the vertical direction. can However, it is not limited thereto.

For example, the upper wing 12 and the lower wing 13 of the spacer 10 may be formed asymmetrically around the main body 11 according to the patient's spinal condition.

The fixing band 20 is located on the front side of the spacer 10, fixing the spinal spinous process (SP) and preventing the spacer 10 from escaping to the outside. To this end, the fixing band 20 may include a band portion 21 and a hook portion 22 .

The band portion 21 may be extended to a predetermined length, and may wrap the circumference of the vertically adjacent spinal spinous process (SP) in an '8' shape. Accordingly, the band unit 21 may maintain a distance between the spinal spinous processes (SP) and fix the spacer 10 by binding the upper spinous process (SP1) and the lower spinous process (SP2).

The hook portion 22 is formed in an arc shape at both ends of the band portion 21 and can be inserted into and pass through the interspinous ligament (ISL) between the spinal spinous processes (SP).

At this time, the interspinous ligament (ISL) into which the hook part 22 is inserted is the interspinous ligament (ISL) located on the upper side of the upper spinous process (SP1) (hereinafter referred to as the upper interspinous ligament (ISL1)) and the lower side of the lower spinous process (SP2) It may be located interspinous ligament (ISL) (hereinafter referred to as inferior interspinous ligament (ISL2)).

In addition, one end of the hook portion 22 may pass through the interspinous ligament (ISL) on the upper and lower sides in order to wrap the spinal spinous process (SP).

Specifically, as shown in FIG. 4, the hook portion 22 at one end of the band portion 21 penetrates the upper interspinous ligament (ISL1), passes through one side of the upper spinous process (SP1), and obliquely crosses the front surface of the spacer (10). After passing, it passes through the lower interspinous ligament (ISL2) through the other side of the lower spinous process (SP2), and passes through the front surface of the spacer 10 obliquely to wrap the other side of the upper spinous process (SP1).

Therefore, in the fixing band 20, the hook part 22 passes through the upper interspinous ligament (ISL1) and the lower interspinous ligament (ISL2) in turn, and the band part 21 wraps the upper spinous process (SP1) and the lower spinous process (SP2), It may be formed in an '8' shape located on the front side of the spacer 10 . At this time, both ends of the fixing band 20 may form an '8' shape and come into contact with each other.

In addition, the band portion 21 is not limited to passing through the upper interspinous ligament (ISL1) first, but may first pass through the lower interspinous ligament (ISL2) to form an '8' shape.

In addition, the band portion 21 may be made of synthetic fibers such as polyester, natural leather, artificial leather, etc., but is not limited thereto, and may be made of a harmless material suitable for the human body and having frictional force of a certain level or more.

As shown in FIG. 5, the fixing band 20 is positioned on the front of the spacer 10 to prevent the spacer 10 from escaping to the outside and at the same time maintain a distance between the spinal spinous processes (SP).

In addition, the spacer 10 can freely move the separation space formed between the back of the '8' shaped fixing band 20 formed on the front side and the posterior arch of the spine (L), thereby reducing discomfort to the patient who has undergone the procedure. there is.

However, a method in which the fixing band 20 fixes the spacer 10 may be configured in various ways according to user's needs.

For example, the fixing band 20 may pass through the interspinous ligament (ISL) and the inside of the spacer 10 to wrap the spinal spinous process (SP). At this time, the main body 11 may include a side through-hole 110 and upper and lower through-holes 111 through which the fixing band 20 may pass.

The side through hole 110 may be formed through the side of the body 11 so that the fixing band 20 can pass through the side. The fixing band 20 may pass through the interspinous ligament (ISL) and then pass through the side through hole 110 or pass through the side through hole 110 and then pass through the interspinous ligament (ISL).

The upper and lower through holes 111 may be formed to pass through the lower surface from the upper surface of the main body 11 so that the fixing band 20 can pass in the vertical direction. The fixing band 20 passes through the upper interspinous ligament (ISL1) and passes from the upper surface to the lower surface of the upper and lower through holes 111, then the lower interspinous ligament (ISL2) and the lower surface of the upper and lower through holes 111 to the upper surface. It passes through the face in turn and can be wound around the two spinal spinous processes (SP).

6 is an exemplary view showing a state in which the fixing band is fixed by a fixing means in FIG. 4, FIG. 7 is a perspective view showing the state of the fixing means in FIG. 4, and FIG. 8 (a) and (b) are 7 is an exemplary operation diagram.

6 to 8 , the intervertebral insert 1 according to the embodiment of the present invention may further include a fixing means 30 into which a fixing band 20 is inserted and fixed.

As shown in FIG. 6, the fixing means 30 may fix the fixing band 20 after the fixing band 20 wraps the vertically adjacent spinal spinous processes (SP) in an '8' shape.

Conventionally, after wrapping the fixing band 20 around the spinal spinous process (SP), the procedure is finished by tying the fixing band 20 in a knot, but there is a problem that the knot can be untied, and to overcome this problem, the fixing means 30 is used. By doing so, the fixing band 20 can be fixed.

The fixing means 30 may include a housing 31 and screws 32 to fix the fixing band 20 .

The housing 31 is formed with a hollow inside, and the side of the housing 31 is penetrated so that the fixing band 20 can be inserted therein. In addition, a screw hole 310 may be formed on an upper surface of the housing 31 so that the screw 32 is screwed therein.

The screw 32 may be screwed into the screw hole 310 while the screw head 320 is located inside the housing 31 . The screw 32 may be inserted into the housing 31 as shown in FIG. Accordingly, the fixing band 20 may be compressed and fixed by the screw head 320 of the screw 32 inserted into the housing 31 .

Here, the hexagon groove 321 can be rotated by a hexagon driver. In addition, although the hexagonal groove 321 is used in the present invention, various shapes such as a cross shape and a straight shape are all possible depending on the shape of the driver that rotates the screw 32 to be inserted into the housing 31.

In addition, when fixing the fixing band 20, the fixing means 30 may direct the hexagonal groove 321 of the screw 32 toward the front so that the working space of the hexagonal driver is secured. However, it is not limited thereto.

In addition, the fixing means 30 may be fixed by inserting the hook part 22 of the fixing band 20, and may be fixed by inserting the band part 21 of the fixing band 20. At this time, after fixing the band part 21 to the fixing means 30, the extra band part 21 or the hook part 22 coming out may be cut.

In addition, the fixing means 30 is a material suitable for the body, and can be made of stainless steel, cobalt-chrome-molybdenum alloy, inert hard metal, titanium, plastic, PEEK, etc., the same as the spacer 10, and most preferably It is recommended to use PEEK material. However, it is not limited thereto.

9 is a perspective view showing a state of a medical device for implanting an intervertebral implant according to the first embodiment of the present invention, FIG. 10 is a side view of FIG. 9, and FIG. 11 is an exploded perspective view of FIG. 12 is a cross-sectional view of the tube of FIG. 9, and FIGS. 13 (a) and (b) are operational examples of FIG.

9 to 13, a medical device 4 (hereinafter referred to as a medical device) for transplanting an intervertebral implant according to a first embodiment of the present invention includes a rotating bar 40, a tube 50, and a support (60) may be included.

In the medical device 4 for transplanting the intervertebral insert of the present invention, the spacer 10 is inserted between the vertically adjacent posterior arches of the spine (L), and then the fixing band 20 is used to connect the spinal spinous processes (SP) and the posterior arch ( It relates to a medical device used for fixing L).

The interspinous ligament (ISL) existing on the upper and lower sides of the upper and lower spinal spinous processes (SP) is damaged as the fixing band 20 is pulled during the process of implanting the intervertebral insert 1. Because of this, the patient's recovery for daily life is slow and may suffer during the recovery process. The medical device 4 of the present invention is designed to solve the above problems, and the intervertebral insert 1 can be implanted while minimizing damage to the interspinous ligament (ISL).

First, the rotating bar 40 is formed to have a predetermined length, and a first hole 41 through which the fixing band 20 passes on one side and a rotating body 42 in a 'T' shape on the other side. can Rotating bar 40 may form a rotating groove 43 along the outer circumferential surface.

The tube 50 may be formed in a tubular shape to accommodate the rotating bar 40 . The tube 50 may have a second hole 51 on one side corresponding to the first hole 41 and a handle 52 capable of manipulating the tube 50 on the other side. In addition, the tube 50 may be formed along the inner circumferential surface to form a rotation protrusion 53 that is inserted into the rotation groove 43 of the rotation bar 40 and rotates.

Here, the first hole 41 of the rotating bar 40 and the second hole 51 of the tube 50 may be formed in the same shape, and may be penetrated when they correspond. The first hole 41 and the second hole 51 are preferably formed in an elliptical shape, but are not limited thereto.

In addition, the rotation body 42 of the rotation bar 40 may be formed so as to come into contact with the end of the handle 52 of the tube 50, and the rotation bar 40 is moved to the tube 50 by rotation of the rotation body 42. ) can rotate inside. At this time, since the rotation bar 40 rotates while the rotation protrusion 53 of the tube 50 is inserted into the rotation groove 43, it can rotate without leaving the tube 50.

In addition, when the rotating body 42 of the rotating bar 40 is rotated to one side while the tube 50 is fixed, the first hole 41 of the rotating bar 40 moves to one side while the second hole 51 ) can be narrowed. Due to the configuration of the medical device 4 as described above, the fixing band 20 may be fixed to the medical device 4 .

Specifically, as shown in (a) of FIG. 13, the fixing band 20 may be inserted in a state where the first hole 41 and the second hole 51 correspond to and pass through. Then, by turning the rotating body 42 of the rotating bar 40 in the direction of the arrow, the first hole 41 moves downward and the second hole 51 narrows, so that the fixing band 20 is compressed and fixed. .

In addition, the tube 50 can rotate inside the support 60, and the handle 52 is rotated while the fixing band 20 is fixed to the second hole 51 so that the fixing band 20 is a medical device. It can be wound on one side of (4).

At this time, the second hole 51 is located on the same line as the direction in which the fixing band 20 passes the interspinous ligament (ISL), so that the fixing band 20 is pulled and wound to prevent damage to the interspinous ligament (ISL) can be made

Finally, the support 60 is formed in a tubular shape with a space formed therein, and is formed in a form that wraps between the second hole 51 of the tube 50 and the handle 52 to come into contact with the spinal spinous process (SP) can be supported The support 60 may allow the handle 52 of the tube 50 to stably rotate as it is supported on the spinal spinous process (SP). Accordingly, the support 60 allows the fixing band 20 to be wound on one side of the tube 50 without shaking, thereby preventing damage to the interspinous ligament (ISL).

In addition, the medical device 4 can allow the fixing band 20 to pass through the interspinous ligament (ISL) with a small force through the rotational force of the tube 50.

In addition, the rotation speed of the tube 50 can be adjusted according to the user's request. The tube 50 appropriately adjusts the passing speed of the fixing band 20 passing the interspinous ligament (ISL) to minimize damage to the interspinous ligament (ISL) caused by the frictional force between the fixing band 20 and the interspinous ligament (ISL). can do.

14(a) and (b) are usage examples showing a state in which a medical device for implanting an intervertebral implant according to an embodiment of the present invention is used, and FIG. 15(a) and (b) is an exemplary view showing another use example of a medical device for implanting an intervertebral insert according to an embodiment of the present invention.

Referring to FIGS. 14 and 15 , the medical device 4 of the present invention can implant the intervertebral implant 1 using the above-described configurations.

First, the spacer 10 may be inserted between the vertically adjacent spinal spinous processes (SP) and supported on the posterior arch (L). Then, as shown in (a) of FIG. 14, the hook portion 22 of the fixing band 20 may pass through the superior interspinous ligament (ISL1). As shown in (b) of FIG. 14, the fixing band 20 that has passed through the upper interspinous ligament (ISL1) corresponds to the first hole 41 and the second hole 51 of the medical device 4. It can be inserted in a pierced state. At this time, when the rotating body 42 of the medical device 4 is rotated to one side, the fixing band 20 can be fixed while the second hole 51 and the first hole 41 are narrowed. Then, the support 60 is supported on the spinal spinous process (SP), and the handle 52 is rotated to wrap the fixing band 20 around one side of the medical device 4 so that the fixing band 20 is attached to the upper interspinous ligament (ISL1). can pass stably. At this time, the second hole 51 allows the fixing band 20 to be in a straight line with the direction coming out of the upper interspinous ligament (ISL1), and to pass the upper interspinous ligament (ISL1) without damage when the fixing band 20 is pulled. can make it possible

In addition, the medical device 4 may increase the fixing force of the spinal spinous process (SP) by finally pulling the fixing band 20 after the fixing band 20 wraps the vertically adjacent spinal spinous process (SP).

Specifically, as shown in FIG. 15 (a), in a state in which the spacer 10 is inserted and the upper and lower spinal spinous processes (SP) and the posterior arch (L) are fixed with the fixing band 20, FIG. 15 (b) As shown in, both ends of the fixing band 20 may be inserted when the first hole 41 and the second hole 51 pass through. Then, when the rotation body 42 of the rotation bar 40 is rotated to one side, the second hole 51 is closed, the fixing band 20 is fixed, and the support 60 is supported on the spinal spinous process (SP) When the handle 52 of the tube 50 is rotated, the fixing band 20 can be pulled to pass the fixing band 20 without damaging the interspinous ligament (ISL). Accordingly, the fixing band 20 can increase the fixing force with the spinal spinous process (SP).

16(a) and (b) are cross-sectional views showing the internal structure of a medical device for implanting an intervertebral insert according to a second embodiment of the present invention.

Referring to FIG. 16 , the medical device 4 for implanting an intervertebral insert according to the second embodiment of the present invention includes a guide protrusion 44 and a guide groove ( 54) may be included.

Here, except for the guide protrusion 44 and the guide groove 54, the medical device 4 for implanting the intervertebral insert according to the second embodiment of the present invention is the first embodiment of the present invention described above. It can be said to be substantially the same as the medical device 4 for transplanting the intervertebral insert according to.

Therefore, only the guide protrusion 44 and the guide groove 54 will be described in detail.

The guide protrusions 44 are formed on the outer circumferential surface of the rotating bar 40, and may be formed in pairs at facing positions.

The guide groove 54 has a certain length along the inner circumferential surface of the tube 50, and the guide protrusion 44 is inserted and moved, and may be formed as a pair. The guide groove 54 may be formed symmetrically about the same axis as the second hole 51 .

The guide protrusion 44 is movable only in the portion where the guide groove 54 is formed, thereby limiting the movement of the rotating body 42 . Thus, the user can minimize manipulation of the rotating body 42 .

Specifically, as shown in (a) of FIG. 16, the guide protrusion 44 may be in close contact with the end of the guide groove 54 so that the second hole 51 is completely opened. At this time, the guide protrusion 44 may form an inclined surface so as to completely contact the end surface of the guide groove 54 . Accordingly, the first hole 41 may be positioned at a point completely corresponding to the second hole 51 so that the fixing band 20 may be easily inserted. After that, as shown in (b) of FIG. 16, when the rotation bar 40 is rotated while the tube 50 is fixed, the guide protrusion 44 moves along the guide groove 54 and the second hole ( 51) can be closed.

17(a) and (b) are operational examples of a medical device for implanting an intervertebral insert according to a third embodiment of the present invention except for a support.

Referring to FIG. 17, the medical device 4 for implanting an intervertebral implant according to the third embodiment of the present invention includes a display indicating that both the first hole 41 and the second hole 51 are open. can include

Here, except for the display unit, the medical device 4 for implanting the intervertebral implant according to the third embodiment of the present invention is for implanting the intervertebral implant according to the first embodiment of the present invention described above. It can be said that it is substantially the same as the medical device (4).

Therefore, only the display unit will be described in detail.

The display unit may include a first display unit 420 and a second display unit 520 .

The first display unit 420 is formed on the rotating body 42 of the rotating bar 40 and may be formed to have a length in a straight line along the central axis of the first hole 41 .

The second display unit 520 is formed on the handle 52 of the tube 50 and may be formed to have a length in a straight line along the central axis of the second hole 51 .

The first display unit 420 and the second display unit 520 are in a straight line when the first hole 41 of the rotation bar 40 and the second hole 51 of the tube 50 correspond to each other, so that the rotating body 42 ) can tell you where it is.

The display unit may be formed in a shape of a color or a protrusion, but is not limited thereto, and high visibility is ensured so that a user can recognize any configuration. Here, a striking color may be used or an LED lamp may be installed. It is most preferable that the display unit is configured in a conspicuous color in consideration of efficiency.

Specifically, as shown in (a) of FIG. 17, in a state in which the second hole 51 and the first hole 41 are completely open, the first display unit 420 and the second display unit 520 may be in a straight line. can

On the other hand, when the handle 52 of the rotating bar 40 is rotated, as shown in (b) of FIG. 17, the second hole 51 is closed by the first hole 41 and the first display unit 420 may be crossed with the second notation.

In addition, the user prepares to insert the fixing band 20 by checking the first display unit 420 and the second display unit 520 and making them straight so that the first hole 41 and the second hole 51 are completely open can do

18 is an exploded side view showing a medical device for implanting an intervertebral implant according to a fourth embodiment of the present invention, excluding the support, and FIGS. 19 (a) to (c) are examples of operation of FIG. 18 It is also

18 and 19, the medical device 4 for implanting an intervertebral insert according to the fourth embodiment of the present invention has a coupling groove capable of adjusting the position of the fixing band 20 and improving the fixing force. (410) and coupling protrusions (510).

Here, except for the coupling groove 410 and the coupling protrusion 510, the medical device 4 for implanting the intervertebral insert according to the fourth embodiment of the present invention is the first embodiment of the present invention described above. It can be said to be substantially the same as the medical device 4 for transplanting the intervertebral insert according to.

Therefore, only the coupling groove 410 and the coupling protrusion 510 will be described in detail.

The coupling groove 410 is formed on one side of the first hole 41 to adjust the position of the inserted fixing band 20 .

The coupling protrusion 510 is formed on the other side of the second hole 51 and may be formed at a position facing the coupling groove 410 . The coupling protrusion 510 may come into contact with the coupling groove 410 according to the rotation of the rotating body 42 in a state where the fixing band 20 is located in the coupling groove 410 and press the fixing band 20 to fix it. .

Specifically, when the second hole 51 and the first hole 41 correspond to each other, as shown in (a) of FIG. 19, the fixing band 20 may be inserted. Then, when the rotating bar 40 is rotated toward the coupling protrusion 510, as shown in (b) of FIG. 19, the fixing band 20 is attached to the coupling groove 410 of the first hole 41. located and can be moved together. When the rotating bar 40 continues to rotate, as shown in (c) of FIG. 19, the fixing band 20 located in the first hole 41 is aligned with the coupling protrusion 510 of the second hole 51. It can be touched, squeezed and fixed.

As a result, the fixing band 20 is located in the coupling groove 410 and can move as the first hole 41 moves, and is compressed by the coupling protrusion 510 on the other side so that the fixing force can be improved.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can implement them in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, the embodiments described above are illustrative in all respects and are not restrictive.

1: intervertebral insert
10: Spacer
11: body
110: side through hole
111: upper and lower through holes
12: upper wing
13: lower wing
20: fixed band
21: band part
22: hook part
30: fixing means
31: housing
310: screw hole
32: screw
320: screw head
321: hexagon groove
4: Medical device for transplanting an intervertebral insert
40: rotation bar
41: first hole
410: coupling groove
42: rotating body
420: first display unit
43: rotation groove
44: guide protrusion
50: tube
51: second hole
510: coupling protrusion
52: handle
520: second display unit
53: rotation protrusion
54: guide groove
60: support
B: Pyramid
ISL: interspinous ligament
ISL1: superior interspinous ligament
ISL2: inferior interspinous ligament
IVD: intervertebral disc
L: concubine
SP: spinal spinous process
SP1: superior spinous process
SP2: inferior spinous process
TP: transverse process

Claims (11)

A spacer inserted between the upper and lower lumbar vertebrae, and
A fixing band located on the front surface of the spacer to fix vertically adjacent spinal spinous processes and to prevent the spacer from escaping to the outside;
The fixed band,
A band part extending to a predetermined length and wrapping the circumference of the vertically adjacent spinal spinous processes in an '8'shape; and
An intervertebral insert comprising hook portions formed in an arc shape at both ends of the band portion and passing through an interspinous ligament between the spinous processes of the spine.
According to claim 1,
The spacer is
A body with a flat rear surface to prevent damage to the dura;
A pair of upper wings formed to have a length upward on the upper surface of the main body, and
And a pair of lower wings formed to have a length downward on the lower surface of the main body,
The intervertebral insert, characterized in that the upper and lower wings do not move backward by wrapping the vertically adjacent spinous processes and the upper and lower larynx and preventing spinal cord damage by supporting the lumbar vertebrae.
According to claim 2,
the body,
A side through-hole penetrating the side so that the fixing band can pass through the side, and
An intervertebral insert comprising upper and lower through holes penetrating from an upper surface to a lower surface so that the fixing band can pass in the vertical direction.
According to claim 2,
The upper wing part,
An intervertebral insert, characterized in that formed longer than the lower wing portion.
According to claim 1,
The intervertebral insert,
An intervertebral insert further comprising a fixing means into which the fixing band is inserted and fixed.
According to claim 5,
The fixing means is
A housing with a hollow inside, a through side and a screw hole formed on the upper surface, and
A screw screwed into the screw hole with the screw head located inside the housing,
the screw,
The intervertebral insert, characterized in that the distal end of the fixing band is fixed by the screw head while the hexagon groove provided on the upper part is rotated and inserted into the screw hole.
A medical device for implanting an intervertebral insert including a spacer inserted between vertically adjacent vertebral arches and a fixing band for fixing the spinal spinous process and the lamina and preventing the spacer from escaping to the outside,
A rotating bar formed to have a predetermined length, having a first hole through which the fixing band passes on one side and a rotating body formed in a 'T' shape on the other side;
The rotating bar is accommodated, a tube having a second hole on one side corresponding to the first hole and a handle on the other side, and
A medical instrument for implanting an intervertebral insert including a support formed in a shape surrounding a tube between the second hole and the handle and supported by a spinous process of the spine.
According to claim 7,
The rotation bar,
Including a rotation groove formed along the outer circumferential surface,
the tube,
A medical device for implanting an intervertebral insert including a rotating protrusion formed along an inner circumferential surface and inserted into the rotating groove to rotate.
According to claim 7,
The rotation bar,
Formed on the outer circumferential surface, including guide protrusions formed in pairs at facing positions,
the tube,
An intervertebral insert having a predetermined length along an inner circumferential surface and including a pair of guide grooves into which the guide protrusion is inserted and moved.
According to claim 7,
The rotating body and the handle,
A medical device for implanting an intervertebral insert including a display unit indicating a position where the first hole and the second hole correspond.
According to claim 7,
The first hole,
It includes a coupling groove formed on one side to adjust the position of the inserted fixing band,
The second hole,
Formed on the other side, in a state where the fixing band is located in the coupling groove, according to the rotation of the rotating body, it comes into contact with the coupling groove and compresses and fixes the fixation band. medical instruments.

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