TR201610594A2 - XLIF cage implant - Google Patents

Abstract

It is a low-risk and fast-performing treatment method and XLIF cage implant (K), which provides a minimal risk incision to eliminate deformations in the spine of the human spine. The left body (10) and the right body (20) are movable in the y-axis thanks to the parallel slides (30) and the joints (70) connected to them. By turning the worm screw 60, the opening and closing of the cage implant K can be adjusted. It can be applied in closed position and application operation can be performed with minimal incision. (Figure 1)

Description

DESCRIPTION XLIF cage implant Technical Area The invention is aimed at eliminating deformations in the vertebrae of the human spine. It is related to the implant used in the treatment.

In particular, the invention deals with the anatomical and functional discs between the vertebrae. XLIF (Extreme Lateral Interbody) made of biocompatible material suitable for the structure Fusion) cage implant and open use of implant by applying closed relates to method.

State of the Art The human spine is placed on top of each other and connected by strong ligaments (Igamans). It consists of bone blocks called vertebrae that rise in the form of columns by connecting them.

7 cervical (cervical) vertebrae in the neck, 12 dorsal (dorsal) vertebrae in the upper and middle part of the back or thoracic (thoracic) vertebrae and 5 lumbar vertebrae in the lower part.

The fifth lumbar vertebra is known as L5 and is located above the coccyx (sacrum). is located. The coccyx is also attached to the coccyx called the coccyx.

The sacrum consists of many fused vertebrae. of the coccyx ends with the pelvis (pelvis), that is, the bone that carries the trunk and is supported by the hips merges with the ring.

The spine is not a rigid structure. Flexibility of the spine between the vertebrae and It has flexible pads or discs that allow it to rotate. Discs flat, round They are biscuit-shaped structures with a jelly-like center called a core and a ring. They have an extremely solid dental structure called (annulus).

Over time, the discs between these vertebrae may age, deform, or experience a deformity. It replaces the disc between the vertebrae due to the loss of its functions due to trauma. PLIF (Posterior Lumbar Interbody Fusion), TLIF (Transforaminal Lumbar Interbody Fusion) Fusion) and ALIF (Anterior Lumbar Interbody Fusion) methods. implants are used. The disadvantage of PLIF from these methods is that it is double-sided. Because it is used, it requires a long operation time and excessive stop pouch. Since it requires retraction, it carries the risk of dural and root damage. TLIF method The disadvantage is the deterioration of facet joint integrity. The ALIF method is surgical. large vein in the abdomen as of the place where the operation was performed carries a risk of injury. The later developed DLIF and XLIF methods are fully performed with a lateral approach.

As a result, due to the above-mentioned negativities and existing solutions It is necessary to make an improvement in the relevant technical field due to the inadequacy of the is locked.

Purpose of the Invention The invention was created by being inspired by the current situations and the methods mentioned above seeks to resolve its shortcomings.

The main purpose of the invention is to determine the deformations in the vertebrae of the human spine. To present an implant to be used for the removal of It is to eliminate the negativities that the methods bring with them.

The advantages of the method of application of the cage implant, which is the subject of the invention, are as follows: o Minimal incision (injury is only as wide as the application width of the implant) opening). 0 Providing maximum field of view during application. o While performing the task of the ALIF implant sent to the body from the anterior, this minimally invasive by eliminating the risks of implant application. can be applied posteriorly or laterally. o Shorter hospital stay and minimal pain.

The advantages of the cage implant subject to the invention are as follows: o Structurally, with pyramid protrusions at the lower and upper levels, the maximum retention o The amount of opening can be adjusted and the movement can be repeated bidirectionally. to be (on/off).

. Reduction of tensile values due to increased surface area after opening.

- It is possible to distribute the pressure on the disc homogeneously throughout the body.

vertebrae in the human spine to fulfill the above-mentioned purposes. between the vertebrae, used in the treatment for the removal of deformations Adjustable way of opening-closing process that fulfills the task of discs. can be realized, thanks to the increased surface area when open It is a cage implant that reduces the stress/pressure value. The mentioned cage implant is includes the elements: o the sleds formed on them and the corresponding sledges mentioned movement of the slide recesses parallel to each other in the y-axis They allow expansion or contraction in the y-axis direction. providing left trunk and right trunk, - connected to said left body and right body by means of joints, x axis into the screw cavity with inner surface formed on it. circular motion in its own axis of the worm screw placed in the direction of circular worm screw, which is rotated with a hand tool that allows linear motion in the x-axis through said grooves. transforming front body, - the left body and the right body connected by means of joints, said the head of the worm screw, the circular axis of the worm screw the back with a working slot where it is fixed so as not to hinder its movement. . To provide the connection between the left body, right body, front body and rear body connection formed on the left, right, front and rear bodies mentioned the rear of the front body by turning the worm screw, which is placed in the the propulsion from the linear movements towards the trunk, the left trunk and the right will enable the body to be opened and closed in the direction of the mentioned y-axis. In this way, the surface area of the cage implant increases and thus the vertebrae are removed. determine the tension/pressure values on the welded left, right, front and rear bodies. otherwise, the width of the cage implant in the y-axis reduction and minimal incision in the body when placing the cage implant on the vertebrae. the mentioned joints that enable it to open, . connecting the joints with the mentioned left, right, front and rear bodies from the knuckle slots formed on the knuckles to provide pin formed on said left, right, front and rear bodies . formed on the left body and right body, where the cage implant is placed retaining surfaces that allow it to be attached/fixed between the vertebrae, - the sled between two female sleds, formed on the left trunk and the right trunk parallel to the female slides by turning the worm screw. the male sled moving in the y-axis, o the side of the said male sled, formed on the left trunk and the right trunk of the worm screw, which fits into the slide recesses on the The female, which moves in the y-axis parallel to the male skid, is rotated. The structural and characteristic features and all advantages of the invention are given in the following figures and It is clearer thanks to the detailed explanation written by making references to these figures. will be understood as such, and therefore the assessment will also include these figures and should be taken into account.

Figures to Help Understand the Invention Figure 1 shows the preferred configuration of the cage implant of the invention. exploded/disassembled view.

Figure 2 is the assembled version of the preferred embodiment of the cage implant of the invention. is the perspective view in the closed state.

Figure 3 is the assembled version of the preferred embodiment of the cage implant of the invention. is the display of the open perspective view and the axes and directions.

Figure 4 shows the preferred configuration of the posterior body in the cage implant of the invention. perspective view.

Figure 5.a shows the preferred configuration of the inventive cage implant in terms of X1. is the view.

Figure 5.b shows the preferred configuration of the cage implant of the invention in terms of x2. is the view. Drawings do not necessarily need to be scaled and to understand the present invention Unnecessary details may be omitted. Other than that, at least elements that are substantially identical, or at least with substantially identical functions, indicated by the same number.

Description of Part References 1. Body 70. Joint . Left body 71. Articulation socket . Right stem 80. Pin . Slide 81. Pin slot 31. Men's sled 90. Joint space 32. Female slide 100. Retaining surface 33. Slide recess K. Cage implant 40. Ten body x-axis 41. Screw slot y-axis 50. Rear body X1 direction 51. Working slot X2 direction 52. Handle y1 direction 60. Worm screw y2 direction Detailed Description of the Invention In this detailed description, preferred embodiments of the invention are merely better suited to the subject. for understanding and without any limiting effect is explained.

Exploded/disassembled of the preferred configuration of the cage implant (K) in Figure 1 view is given. In the cage implant (K), basically; left trunk (10), right trunk (20), front body (40), rear body (50) and worm screw (60). Assembly process preferably left body (10) and right body (20) slides (30) to each other (male slide (31) and female sleds (32) and sled recesses (33) corresponding to said sleds (30) occurs by passing it through. Left body (10) and right body (20) are identical, using the opposite way to pass each other with slides (30) and slide recesses (33). is provided. placed in the working space formed on the rear body (50) and Worm screw (60), which is fixed by means of pins (80), is inserted into the screw slot in the front body (40). (41) provides the connection between the front body (40) and the rear body (50).

Joints (70), stems (1) new left stem (10), right stem (20), front stem (40), and rear It is placed in the connection gaps (90) formed on the body (50). Said In the placement process, the joint slots (71) formed on the joints (70), they are in line with the pin slots (81) on the corresponding bodies (1) is observed. Thus, the joints (70) are placed on the bodies (1) and the bodies (1) on each other. The joint slot (71) and pin of the pins (80) inserted/used during the connection It is ensured that they pass easily through their slots (81). (Figure 2, Figure 3) On the back body (50) of the cage implant (K), which is in the closed state in Figure 2 formed; the worm screw (60) of the handpiece that enables using the cage implant (K). the working slot (51) in which the handpiece is placed to turn it into the cage implant (K) preferably on both sides of the said working slot (51) There are grip slots (52) formed. Operation of the mentioned hand tool It should be placed in the slot (51) and preferably the stack extends into the screw slot (41). by turning the worm screw (60) circularly in its center in the x-axis, the front body (40) moves towards the rear body (50) by moving in the X1 direction on the x axis, the left body (10) and the right body (20) move in the y-axis from each other. they start to move away. With the said movement, the slides (30) are made of slide recesses. (33) separate and move in opposite directions on the y-axis. This movement allows Recognizing elements are the joints (70) and pins (80). The movement mentioned While the front body (40) is approaching towards the rear body (50) at the starting stage, the front body (40) (40) and rear body (50), left body (10) and right body (20) on the surfaces they come into contact with. they force it to open outwards on the y-axis by applying pressure.

In Figure 2, the knuckles (70) extending in the x direction, while turning the worm screw (60) with the hand tool. They rotate from the x-axis to the y-axis. The open position of the cage implant (K) in Figure 3 in its final state, the joints (70) are at an angle close to the y-axis or y-axis direction. they take positions. The pins (80) are fixed in the pin slots (81) on the bodies (1) As they stand, the joints (70) are formed on the joint slots (71) and they can move in the x-y plane thanks to the pins (80) passing through them.

The hand that allows the said cage implant (K) to switch from the closed position to the open position. turning the worm screw (60) of the tool in the opposite direction, open It is possible to switch from position to closed position. In this case, the front body (40) x axis, moving away from the rear body (50) in the x2 direction, left body (10) and right body (20), on the other hand, begin to approach each other by moving along the y-axis.

The invention is designed to fulfill the function of the discs between the vertebrae in the human spine. Preferably biocompatible Peek (Polyether Ether Ketone) and titanium, suitable for anatomical structure The finished product is the XLIF cage implant (K). Cage implant (K) in closed state minimal incision It is sent to the body with the (invasive) technique. On the left body (10) and the right body (20) There is a holding surface (100) with protrusions that provide attachment. in a closed state Cage implant (K) placed between the vertebrae, anterior body (40) and posterior body (50) With the pulling action of the worm screw (60) positioned between Controlled open thanks to the joints (70) connected by means of (80) goes into position. Male sleds (31) and female sleds (32) interlock Parallel states of the slides (30) during the transition to the open position indefectible. During the said transition, the front body (40) is connected to the rear body (50) in the x-axis. the left body (10) and the right body (20) move in opposite directions on the y-axis and so that the bodies (1) are located between the vertebrae. Cage implant (K), slides (30) with their parallel movements relative to each other, the tip on them is preferably flattened and sharp. between the vertebrae thanks to the pyramid-like retaining surface (100) with ovalized lines. it is placed in a balanced and solid way.

Deformations in the vertebrae of the human spine with the cage implant (K) Low-risk and fast-applied application with minimal incision for removal The steps of the method are as follows: A. Closed position of the cage implant (K) between the vertebrae to be applied placement, B. endless with pressure part in the working housing (51) by means of a hand tool adjusting the aperture of the cage implant (K) by turning the screw (60), C. Thanks to the grooves on the inner surface of the screw hole (41) for the desired clearance adjustment As a result of the rotation of the worm screw (60), the front body (40) moves in the X2 direction. approaching the rear body (50) by D. joints (70) in the x-axis formed during the approach in the C operation step. Drive the left body (10) in the y1 direction and the right body (20) in the y2 direction. transmitting it to enable it to act, E. During the transmission in the process step, the slides (30) by separating from their recesses (33) 'the left body (10) or the right move parallel to each other in the y-axis together with the body (20)

Claims (11)

REQUESTS . It is a cage implant (K), which is used in the treatment for the elimination of deformations in the vertebrae of the human spine, fulfills the function of the discs between the vertebrae, and can be adjusted in the opening-closing process. The slides (30) formed on them and the slide recesses (33) corresponding to the said slides (30) can move parallel to each other in the y-axis, allowing the expansion or contraction in the y-axis direction and the left body (10) and the right body (20) The endless screw (60), which is connected to the left body (10) and the right body (20) by means of joints (70) and placed in the screw housing (41) with a grooved inner surface formed on it, rotated with a hand tool that enables the worm screw (60) to move circularly in its own axis. The head part of the said worm screw (60), which is connected with the front body (40), the left body (10) and the right body (20) and the joints (70), which converts the circular movement of the screw (60) to the linear movement in the x-axis through the said grooves, is the head of the worm screw. (60) rear body (50), left body (10), right body containing working slot (51) in which it is fixed in such a way that it does not hinder its circular movement on its own axis. In order to provide the connection between the body (20), the front body (40) and the rear body (50), the left, right, front and rear bodies are driven by the linear movements of the front body (40) towards the rear body (50) by turning the worm screw (60). It transmits the left body (10) and the right body (20) to open and close in the direction of the mentioned y-axis, increasing the surface area of the cage implant (K) and thus the left, right, anterior and posterior bodies (10, 20, 40, 50), the aforementioned hinges (70) ensure that the tension/pressure values above it are reduced, otherwise the width of the cage implant (K) in the y-axis is reduced and a minimal incision is made in the body while the cage implant (K) is placed on the vertebrae. 2. It is a cage implant (K) according to claim 15, its feature is; it contains the knuckle slots (71) formed on the said left, right, front and rear (70) and said left, right, front and pins (80). 3. It is a cage implant (K) according to claim 1, its feature is; It contains retaining surfaces (100) formed on the said left body (10) and right body (20) that enable the cage implant (K) to be attached/fixed between the vertebrae where it is placed. 4. It is a cage implant (K) according to claim 1, its feature is; . male sledge (31) formed on the left body (10) and the right body (20), placed in the slide recess (33) between the two female slides (32) and moved in the y-axis parallel to the female slides (32) by turning the worm screw (60) , it is formed on the left body (10) and the right body (20), fits into the slide recesses (33) located on the sides of the said male slide (31) and moves in the y-axis parallel to the male slide (31) by turning the worm screw (60). it includes said sleds (30) which are female sleds (32). 5. It is a cage implant (K) according to claim 1, its feature is; It contains a holding slot (52) that is formed on the said rear body (50) and ensures that the hand tool is fixed on the rear body (50). 6. It is a cage implant (K) according to claim 1, its feature is; It contains the left body (10) and the right body (20) made of biocompatible polyether ether ketone suitable for the anatomical structure. 7. It is a low-risk and fast-applied method of application by opening minimal incisions for the elimination of deformations in the vertebrae of the human spine. . The left body (10) and the right body (20), which provide expansion or contraction in the y-axis direction, thanks to the slides (30) formed on them and the slide recesses (33) corresponding to the said slides (30) can move parallel to each other in the y-axis. Worm screw rotated with a hand tool, which is connected to the body (10) and the right body (20) by means of joints (70) and which enables the worm screw (60) placed in the screw housing (41) with an inner surface threaded on it, to move circularly in its own axis. (60) front body (40), left body (10) and right body (20), which converts its circular motion to linear motion in the x-axis through said grooves, and the head part of the said worm screw (60), which is connected by means of joints (70), 60) rear body (50), left body (10), right body containing working slot (51) where it is fixed in a way not to hinder its circular movement on its axis In (20), left, right, front and rear bodies mentioned in order to provide the connection between the front body (40) and the rear body (50), by turning the worm screw (60), the propulsion coming from the linear movements of the front body (40) in the x axis, the left body ( 10) and increasing the surface area of the cage implant (K), which transmits the opening and closing of the right body (20) in the direction of the mentioned y-axis, and thus the tension on the left, right, anterior and posterior bodies (10, 20, 40, 50) originating from the vertebrae. By means of the cage implant (K) containing the mentioned joints (70), which ensures that the /pressure values decrease, otherwise the width of the cage implant (K) in the y-axis is reduced and a minimal incision is made in the body while the cage implant (K) is placed on the vertebrae; A. placing the cage implant (K) between the vertebrae to be applied in a closed manner, adjusting the aperture of the cage implant (K) by turning the worm screw (60) with the pressure in the working socket (51) with a hand tool, C. screw for the desired clearance adjustment The front body (40) moves towards the rear body (50) by moving in the x2 direction as a result of the rotation of the worm screw (60) thanks to the grooves on its inner surface of the housing (41), D. The drive of the joints (70) in the x axis that occurs during the approach in the C process step, the left body (10) to transmit in the direction of yi and the right body (20) to move in the direction of y2. (20) to move parallel to each other on the y axis, and it includes the process steps. 8. It is a method according to claim 7, its feature is; All the mentioned elements are made of titanium except the left body (10) and the right body (20) made of polyether ether ketone and the elements formed on them. 9. It is a method according to claim 7, its feature is; said cage implant (K) is a biocompatible XLIF cage implant (K) suitable for the anatomical structure. 10. It is a method according to claim, and its feature is; It is the elimination of the risk of injury to the large vessels in the abdomen, thanks to the opening of the said minimal incision from the posterior or lateral instead of the abdomen. 11. It is a method according to claim, and its feature is; In process step C, while the front body (40) approaches the rear body (50), the left body (10) and the right body (20) are opened outwards in the y-axis, while the front body (40) and the rear body (50), the left body (10) ) and the right body (20) to apply pressure to the surfaces they come into contact with.