KR20160096899A - Spine Insert - Google Patents

Abstract

The present invention relates to an intervertebral insert which is capable of unnecessary movements between the spinous processes while maintaining a required gap between spinous processes of vertebra. An intervertebral insert according to the present invention comprises: a spacer including a main body part in which a hollow part is formed, and which has a reverse T character-shaped internal space through a communication hole formed by perforating from the outside to the hollow part, a U character-shaped upper pinching part, and a reverse U character-shaped lower pinching part; a strap tie which is mounted such that the strap ties is rotatable in the communication hole of the main body part; and a strap which bands the spacer and the spinous processes through the rotation of the strap tie.

Description

Spine Insert < RTI ID = 0.0 >

The present invention relates to a vertebral implant.

Generally, the vertebra is made up of a plurality of independent vertebrae (e.g., cervical vertebra, thoracic vertebra, lumbar vertebra, sacral vertebrae), each vertebrae is connected by joint nodes and is filled with an intervetebral disc between each vertebral body. In addition, there is a spinal cord between the vertebral body and the spinous wheel which passes through the vertebral nerve while forming a spindle in the back of each vertebral body. The spine of this structure not only functions as a buffer but also supports various postures and protects the organs in the body.

As the body gets old, degenerative changes occur in the vertebrae, and the gap between the spinous processes becomes closer and the ligamentum flavum loses its elasticity and becomes thicker and deformed or displaced from its normal position. As a result, spinal nerves or yellow ligaments compress the spinal nerves, which are called spinal stenosis.

The spinal stenosis is performed by removing the bones and tissues that press the nerve, or fixing the spine with a screw or the like in case the vertebra becomes unstable. Recently, a treatment method called waist-flap fixation, which treats the vertebrae while keeping the vertebrae in a moving state, is being watched in order to depressurize the nerve to be pressed and to give appropriate stability to the nerve.

Such a soft fixation is to provide stability to the vertebrae through the spinal projection pole fixation device proposed in Patent Document 1, and includes a spacer inserted between a spiral and a spiral of an adjacent vertebra, and a clip Lt; / RTI > The spacer of Patent Document 1 includes an insertion portion supported and inserted between adjacent spiral rollers, and a coupling portion engaged with a clip protruding outwardly between the spiral rotator and extending from one side of the insertion portion. The spacer according to Patent Document 1 is disposed on the side of the vertebra in an overall "a" shape. A clip of a certain shape must be mounted to fix the spacer between the sprockets and the coupling of the spacer must be placed outside the spine to affect other organs.

Korean Patent No. 10-1333657

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is an object of the present invention to restrict movement of two spines while maintaining a predetermined gap between spins of adjacent two spines.

In order to achieve the above object, according to a preferred embodiment of the present invention,

A main body portion having a hollow portion hollowed in the inside thereof and a communicating hole punctured from a side portion not facing the spiral portion to a hollow portion in the center of the inner portion, the upper spiral portion being disposed on the upper portion of the spinal body, A pair of U-shaped upper holding portions formed by a pair of wings extending upward from the upper surface of the main body portion so as to support the main body portion and a pair of elongate downwardly extending portions extending downward from the lower surface of the main body portion A spacer having an inverted U-shaped lower nip portion formed by a wing portion of the inverted U-shaped portion;

A strap tie rotatably disposed on the communication hole of the body portion; And

And a strap for bending the spacer and the pulleys through the rotation of the strap tie.

The body portion forms a concave portion inside the hollow portion facing the communication hole, and the concave portion is engaged with the lower end portion of the strap tie, and enables the rotation of the strap tie.

In an embodiment of the present invention, the strap tie comprises a body portion extending in a tubular shape and having a through-hole; A head portion provided at an upper end of the body portion; And a bearing portion disposed at a lower end of the body portion and rotatably coupled to the body portion. The through-hole of the body portion is made to be able to be wound by inserting both ends or one end of the strap.

The bearing portion is disposed in the concave portion so that the strap tie can be rotatably coupled to the body portion.

The head portion forms a groove on the upper surface thereof, and the strap tie can be rotated in one direction through a medium such as a driver or a wrench.

The head portion forms one or more inclined protrusions around the outer circumferential surface thereof, and correspondingly forms at least one receiving recess in the upper inner surface of the communicating hole. The strap tie is rotatable only in one direction through the inclined protrusion of the head portion and the receiving groove of the communication hole, thereby preventing unnecessary reverse rotation of the strap, thereby preventing loosening of the strap.

The communicating hole may have a stepped portion at the upper end thereof and a head portion of the strap tie may be seated at the stepped portion so that the body portion and the head portion may be placed on the same plane so as not to protrude to the outside.

The intervertebral insert inserts a guide groove at the end of each wing to help seat the strap to prevent lateral displacement of the strap.

The present invention further includes a cushioning pad on the inner circumferential surface of the upper clamping part and the lower clamping part in order to improve the adhesion between the pulsator and the intervertebral implant.

The lower nip portion has at least one wedge portion protruding from the lower surface of the main body portion between the wing portions, which allows the wedge portion to be reliably engaged with the wing portion.

Incidentally, the body portion has a first opening portion and a second opening portion at both end portions, and allows the strap to flow in and out of the hollow portion through the opening portion.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, there is provided a vertebral body insert which is interposed between two adjacent vertebrae of a pair of adjacent vertebrae to provide a predetermined gap between the vertebrae to reduce the nerve pressure and provide stability.

In particular, the present invention wraps the outer sides of two adjacent proximal rotors so that the weight applied to the vertebrae can be dispersed, as well as being prevented from moving away from the proximal rotors due to bending of the spine or the like, .

The present invention is not limited to a method of knotting or hooking a strap for binding and fixing spacers between two spools, but simply by fastening the strap by rotating the strap tie through a driver or a wrench or the like of a practitioner, In addition to protecting the body organs in contact with the body organs in the body, the operation time can be shortened by significantly reducing the work flow.

1 is a perspective view of an intervertebral implant according to a preferred embodiment of the present invention.
FIG. 2 is an exploded perspective view of the vertebral implant shown in FIG. 1; FIG.
3 is a cross-sectional view taken along the line III-III in Fig.
4 is a cross-sectional view of the spacer taken along the line IV-IV in Fig.
5 is a cross-sectional view showing a state in which the strap is wound to wind the strap tie.
FIG. 6 is a view showing an intervertebral implant according to a preferred embodiment of the present invention mounted between adjacent transverse peripheries. FIG.

Now, an intervertebral implant according to the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages, features, and ways of accomplishing the same will become apparent from the following description of embodiments taken in conjunction with the accompanying drawings. In the specification, the same reference numerals denote the same or similar components throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

1 and 2 are schematic views of an intervertebral implant according to a preferred embodiment of the present invention, and Fig. 4 is a cross-sectional view of an overall spacer.

As shown, the intervertebral insert 1 according to a preferred embodiment of the present invention includes a generally H-shaped spacer 100, a strap 200 and a strap tie 300 consist of.

The spacer 100 includes a body portion 110, a U-shaped upper holding portion 120 disposed on the upper surface of the body portion 110, and a reverse U Shaped lower holding part 130 to have a generally H-shaped structure.

The upper holding part 120 is formed integrally with the upper surface of the main body part 110 and includes a pair of wings 120a and 120b extending upwardly and the wings 120a and 120b are shown (See Fig. 5) to be disposed at the upper side, as shown in Fig. The upper holding part 120 is disposed so as to be inclined upward from the upper surface of the main body 110 in such a manner that the upper holding part 120 surrounds the lower outer side of the spinning reel and supports the wings 120a and 120b.

Correspondingly, the lower holding portion 130 provides a space that can surround and support the upper outer side of the lower drawer (see FIG. 5) disposed adjacent to the lower side. To this end, the lower holding part 130 is formed of a pair of wings 130a and 130b which are integrally formed with the lower face of the body part 110 and extended downward. Specifically, the lower holding part 130 includes wings 130a 130b are spaced apart from each other by a predetermined distance from the lower surface of the main body 110,

The main body 110 includes a pair of wings 120a and 120b forming the upper holding part 120 and a pair of wings 130a and 130b forming the lower holding part 130 . At the same time, a strap tie 300 for winding both ends of an elongated strap 200 for tightly fixing between the spacer 100 and two adjacent winder rings (see Fig. 5) is incorporated.

Optionally, the body portion 110 forms one or more wedge portions 112 projecting vertically downwardly from the lower surface of the body portion between the pair of wings 130a, 130b. Of course, the wedge portion 112 can press the centrifugal rim 1200 (see FIG. 5) disposed at the lower portion more firmly, thereby restricting the unnecessary movement of the spacer 100 even when fastened or fastened between the winglets 112 .

In addition, the present invention includes a buffer pad 150 on the inner peripheral surface of the upper holding portion 120 and / or the lower holding portion 130. [ The buffer pads 150 are made of a flexible material so that the buffer pads 150 can be brought into close contact with the upper and lower holding parts of the spacer 100 so as not to cause a gap phenomenon between the upper and lower holding parts 1100 and 1200 (see FIG. 5). In addition, the buffer member 150 may serve as a nonslip pad so as to prevent the spacer 100 from separating between the rollers in the fastening process. The cushioning member 150 may be attached to one surface of the upper holding portion and the lower holding portion of the spacer 100 through various methods such as a bonding method, an interference fit method, and a snap fit.

Specifically, the body 110 has a hollow portion 111 hollow therein. The body portion 110 has first and second ends 111 and 111, which allow the strap 200 to flow in and out of the hollow portion 111, And the opening 111a and the second opening 111b are arranged to face each other.

The main body 110 is formed with a through hole 114 extending from a side portion that is not in direct contact with the centrifugal fan to a hollow portion 111 formed at the center of the inside thereof, The tie 300 can be rotatably installed.

3 and 4) inside the hollow portion 111. The main body portion 110 is preferably disposed to face the communication hole 114 so as to be inserted into the communication hole 114, Helping to locate a portion of the strap tie 300 to be positioned, specifically the bearing portion 330.

The present invention forms guide grooves 121 at the upper end portions of the respective wing portions 120a and 120b, specifically, the upper outer circumferential surfaces. Correspondingly, guide grooves 131 are formed in the lower end portions of the respective wing portions 130a and 130b, specifically, the lower end outer peripheral surfaces.

The guide grooves 121 and 131 can prevent the strap from separating from the sides of the wing portions 120a and 120b 130a and 130b by allowing the strap 200 to wind the wing portions 120a and 120b The contact surfaces of the guide grooves 121 and 131 and the strap 200 are formed so as not to be sharp by a rounding process or the like so as to minimize friction on the strap 200 continuously contacting the ends of the wings 120a and 120b So that it is not worn out and aged.

3 is a schematic view of the main body 110 viewed from the line III-III in order to confirm the state of engagement between the spacer 100 and the strap ties 300. As shown in FIG.

As shown in the figure, the main body 110 has a hollow portion 111 formed therein, and a first opening 111a and / or a second opening 111b are formed on both sides of the hollow portion 111, The flow of the strap can be ensured. The main body 110 has a communicating hole (not shown) which communicates the hollow portion 111 and the side surface portion of the main body portion 110 (the surface that does not contact the extruder) in a direction orthogonal to the hollow portion 111 formed in the width direction thereof 114 are formed. That is, the main body 110 forms an inverted T-shaped inner space through the hollow portion and the communication hole as shown in the figure. The communication hole 114 may form a step 114a at the upper end thereof.

The main body 110 has a concave portion 115 formed on the inner side surface of the hollow portion 111. The concave portion 115 is formed at a position facing the communication hole 114, 115 and the communication hole 114 on the coaxial line.

The strap ties 300 are disposed on the wings 120a and 120b of the spacer 100 and pass through the hollow portion 111 and the first opening portion 111a and the second opening portion 111b And the strap 200 (see Fig. 5) surrounding the spacer 100 and the two spools is wound up to allow knot fixing.

The strap tie 300 includes a body portion 320 having a generally tubular shape and extending in a longitudinal direction, a head portion 310 integrally connected at one end of the body portion 320, And a bearing portion 330 coupled to the bearing portion 330.

The head portion 310 is formed with a groove (not shown) capable of receiving a one-sided driver, a ten-sided driver or a wrench on its top surface, as shown in Figs. The strap tie 300 is pivoted by the communication hole 114 of the main body 110 and the strap 200 is inserted into the groove of the head part 310 and rotated in a predetermined one direction Can be wound.

The head portion 310 is disposed on the communication hole 114 and can be seated on the step portion 114a of the communication hole 114. [ The head portion 310 may be received in the step portion 114a of the communication hole 114 so as to be placed on the same plane so as not to protrude from the side portion of the body portion 110 as shown in the figure.

One end portion of the strap tie 300 is wound around the outer circumferential surface of the head portion 310 so that the strap tie 300 may unexpectedly rotate in the other direction (reverse direction) to prevent the strap 200 wound around the body portion 320 from being unwound The inclined protrusion 311 is formed. Correspondingly, one or more receiving grooves 114b are formed in the upper inner surface of the communication hole 114, and the receiving grooves 114b are disposed at the same level as the inclined protrusions 311 so as to be mutually engaged. When the oblique protrusion 311 is rotated in one direction, the oblique surface of the oblique protrusion 311 can be rolled over the accommodating recess 114b so that the body 320 can be wound. When the oblique protrusion 311 is rotated in the reverse direction (the other direction), the end of the oblique protrusion 311 is engaged with the receiving groove 114b and is forcibly stopped so that the strap 200 is not released . For this purpose, the receiving groove 114b is preferably formed in a shape corresponding to the inclined protrusion 311.

When the practitioner rotates the head part 310 in a predetermined direction by a driver or a wrench, the tubular body part 320 integrally coupled to the head part 310 can be rotated. The body portion 320 forms a through hole 323 across the body portion and the through hole 323 is fixed to the body portion 110 by sandwiching both ends of the strap 200 guided by the hollow portion 111 of the body portion 110 The strap 200 can be wound around the outer circumferential surface of the body 320 by rotating the strap tie 300. [

The strap tie 300 has a bearing portion 330 at the other end of the body portion 320. [ The bearing portion 330 is a member that is received in the concave portion 115 of the body portion 110 and rotatably interconnects the strap ties 300 in the hollow portion of the body portion 110. [ The bearing portion 330 can be inserted into the concave portion 115 formed in the thickness portion of the body portion 110 as shown in the drawing and the body portion 320 is further extended, So that the bearing portion 330 may be disposed outside the main body 110. That is, the bearing portion 330 is a structural member that not only separates the strap ties 300 from the body portion 110 of the spacer 100, but also rotates the strap ties 300 from the body portion 110 .

The spacer and / or the strap tie of the present invention is preferably made of a human body material. The spacer and / or the strap tie may be made of a metal such as titanium, and may be made of a material capable of providing flexibility and elasticity such as silicone, Of plastic material.

5 shows a state in which the strap 200 is wound around the outer circumferential surface of the body 320 of the strap tie 300 by rotating the strap tie 300 by a driver or a wrench in a predetermined direction, It is a sin so that a reliable connection between the spacer and the spinning wheel can be confirmed. The present invention can eliminate the knotting process of the strap and simply pull the strap through the unidirectional rotation of the strap tie to closely contact the spacer and the spinning wheel.

6 is a perspective view showing a state in which the spacer 100 of the intervertebral implant 1 according to the preferred embodiment of the present invention is disposed between the translators 1100 and 1200 and the translators 1100 and 1200 and the spacer 100 , It is possible to pull the strap while being wound around the inside of the body of the spacer 100 through the rotation driving of the strap ties 300 to assure a reliable connection state between the respective adjacent components.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited thereto. It is evident that the person skilled in the art can change or improve it.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1 ----- vertebral implant,
100 ----- spacers,
112 ----- Wedge,
121, 131 ----- guide grooves,
150 ----- cushion pad,
200 ----- strap,
300 ----- strap ties,
1100, 1200 -----.

Claims (12)

A communicating hole 114 is formed in the inside of the spine 1100 and 1200 so as to be hollowed from the side portion not facing the spine to the hollow portion 111 of the inner center, And a pair of wings 120a and 120b extending upward from the upper surface of the main body 110 to support the upper winder to be disposed on the upper portion of the main body 110. [ And a pair of wings extending downward from the lower surface of the main body 110 to support a lower side winder to be disposed at a lower portion of the main body 110, A spacer 100 having an inverted U-shaped lower holding part 130 formed of a plurality of protrusions 130a and 130b;
A strap tie 300 rotatably disposed in the communication hole 114 of the main body 110; And
And a strap (200) for bending the spacer (100) and the translators (1100, 1200) through rotation of the strap ties (300).
The method according to claim 1,
Wherein the body part (110) forms a concave part (115) inside the hollow part (111) facing the communication hole (114).
The method according to claim 1,
The strap ties (300)
A body portion 320 having a through hole 323 through which the strap can be inserted;
A head part 310 provided at an upper end of the body part 320; And
And a bearing part (330) disposed at a lower end of the body part (320) and rotatably coupled to the body part (110).
The method according to claim 2 or 3,
The bearing portion (330) is disposed in the concave portion (115).
The method of claim 3,
The head portion (320) defines a groove in its upper surface.
The method of claim 3,
Wherein the head portion (310) defines one or more oblique protrusions (311) about an outer circumferential surface thereof.
The method according to claim 1,
The communicating hole (114) forms a step (114a) at an upper end thereof.
The method according to claim 1,
The communicating hole (114) defines at least one receiving groove (114b) in an upper inner surface.
The method according to claim 1,
The wing portions 120a and 120b are formed with guide grooves 121 at the upper end portions to facilitate the seating of the strap 200 and the wing portions 130a and 130b are provided at lower ends And the guide groove (131).
The method according to claim 1,
And an inner peripheral surface of the upper holding part 120 and the lower holding part 130 is provided with a cushioning pad 150.
The method according to claim 1,
The lower nest 130 includes at least one wedge portion 112 protruding from a lower surface of the main body 110 between the wings 130a and 130b.
The method according to claim 1,
The main body 110 includes a first opening 111a and a second opening 111b at both side ends thereof and the inflow and outflow of the strap 200 into the hollow portion 111 through the openings 111a and 111b. The vertebral body insert allows for the formation of a spinal column.

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