TR201607777A2 - Lockable compression screw with variable length - Google Patents

Abstract

The invention relates to an anterior part (A) with a groove in the front and a cavity used in the fracture fixation and compression stage during orthopedic surgical interventions in the medical field, on the rear side of this anterior part (A), which allows the compression screw (V) to shorten the length of the lock. and a compression screw (V) comprising a rear part (B) comprising a non-permissible groove mechanism. In particular, the invention relates to the locking system (K), in which the lock slots (6) formed on the outer part of the male lock (15) are connected to each other so that the female lock (14) is compatible with the inner groove slots (5).

Description

DESCRIPTION Variable Length Locking Compression Screw TECHNICAL FIELD In the field of medicine, fracture fixation and fracture fixation during orthopedic surgical interventions It is related to the compression screws used in the compression stage.

The invention is especially suitable for the surgical treatment according to the case to which the compression screws will be applied. During the intervention, it is stable by changing the size with the designed lock system. It's about allowing a compression.

KNOWN STATE OF THE TECHNIQUE Today, there is a medical treatment for the repair and treatment of broken bones in the body. apparatus and methods known in the art often require surgical intervention. ORIF (open reduction internal fixation) is generally used to fix the broken bone in the body. surgical removal of broken bone using plates and screws or an IM rod It is a technique developed for repair. In this technique, the surgical operation is always successful. There are many factors that prevent it from happening. Treatment methods; healing process, pain and It also seriously affects the functional results. Apart from this, the patient's infection risk, anesthetic complications and health care costs, duration of surgical intervention highlights the need for abbreviation.

Compression screws are used especially in the mechanical bonding of bone fractures. is used. Compression screws designed to be a metal shaft There are screw threads (gears) at the ends. Screw threads have different inclinations and thus, a compression (compression) occurs during the screwing of the screw into the bone.

Compression statement; This bone is due to the screw being screwed into the two bone fractures. As the fractures move towards each other, the two bones come closer to each other and lean on each other. refers to the union of the fracture.

In today's technique, to combine the fracture fragments and make compression, the so-called acuterak with screws with different thread pitch on both the head and the back, which consists of a single body interventions are carried out. Disadvantages of these screws; screw neck surgery It is difficult to adjust during and the compression effect (compressing effect) is limited. Operation during 'screw change, especially after the length of the screw is long or short' required, and for this, with multiple screw entry-exit on the bone can cause bone breakdown. As a result, the result of surgery and greatly affects the effect of boiling. The invention in the utility model document titled “Intramedullary Locked Nail” The marrow of the ulria bone, which fixes the bone and ensures union in single or single fractures. By applying the fractured bone part to the middle by applying it through its cavity (medulla), both ends of the nail It is related to the multi-purpose ulna intramedullary locking nail that fixes it with screws. implant The proximal body of the ulna nail (ulna nail), made of locking channel to guide, compression screw hole, threaded obligue compression hole, oval compression hole, round fixation hole, distal body of the ulna nail, distal of the ulna nail locking grooves, distal tip of ulna nail, distal multi-wire body of ulna A nail, Locking screw that performs proximal locking and compression of the ulna nail, locking screwdriver slot of the screw, cortical tooth part of the locking screw, screw the locking screw into the ulna The threaded section that compresses by screwing to the nail, the compression washer, the ulna nail application guide, the ulna A nail located on the distal multi-wire body of the ulna A nail. from the flexible thin wires of the nail consisting of many wires, the body of the ulna nail of different diameters. occur.”

As a result, the existence of the above problems and the inadequacy of the existing solutions It has made it necessary to make an improvement in the technical field of screws.

OBJECTIVE OF THE INVENTION The main purpose of the invention is to have a locking system that can be extended and shortened during surgical intervention. Depending on the case, without the length problem to the area to be applied with the compression screw By adjusting the length of the screw, a stable compression is achieved in one go with its strong compressive effect. is to provide.

The aim of the invention is to determine the size of the screw with the designed locking mechanism to the case (region) to be applied. thread and groove slots on female and male lock parts. Stabilizing the front and back parts of the screw to each other by locking them together to ensure its fixation.

The other purpose of the invention is to determine the length of the screw after it is placed in the area to be applied. shortened, both by closing the gap between the fracture fragments and contacting each other to ensure that it is compressed with

Another purpose of the invention is to ensure that the screw length is long, especially during the operation. It is to carry out the operation without the need for screw change after it arrives. Like this, In case the screw length is already too long, multiple screw entries and exits With this, the possible disintegration of the bone is prevented.

Another aim of the invention is to shorten the duration of surgical intervention and to provide both physicians with more to allow intervention in a large number of cases, as well as to ensure that the compression applied bone to make it boil faster.

One of the objects of the invention is that during the surgical intervention, the stature becomes long or short. Therefore, by preventing the use of multiple screws, both the patient and the patient can be healed in a shorter time. to ensure the recovery of the screw and to minimize the screw costs.

The structural and characteristic features of the invention and all its advantages are given in the following figures and More clearly thanks to the detailed explanation with references to the figures. will be understood and therefore the assessment should also take these forms and detailed explanation into account. must be made by taking

BRIEF DESCRIPTION OF THE FIGURES The embodiment of the present invention and the best use of its advantages with additional elements In order to be understood, it should be evaluated together with the figures explained below. Figure 1; The subject of the invention is the perspective of the anterior and posterior parts of the compression screw. is the view.

Figure- 2; ; The subject of the invention is the front and rear mounted view of the compression screw.

Figure - 3a; ; The subject of the invention is the lock consisting of the front and back parts of the compression screw. is the view of the system.

Figure - 3b; The subject of the invention is the lock consisting of the front and back parts of the compression screw. Figure - 4; The subject of the invention is the front and back parts of the compression screw and the locking system. perspective view.

Figure-5; The subject of the invention is the general perspective view of the compression screw.

REFERENCE N MARKS V. Compression screw A. Ten pieces B. Back piece K. Lock system 1. Diameter of grooved part 2.0n Body diameter 3.Lumen diameter 4.Male lock diameter . lock grooves 6.Slot slot 7. Female lock diameter 8. Diameter of rear spline 9. Stretching Space .Male lock compression gap 11. Female lock clamping gap 12. Ten compression threads 13.Back compression ribs 14. Female lock .Male lock Drawings do not necessarily need to be scaled and are necessary to understand the present invention. details may be neglected. Moreover, at least to a large extent Elements that are identical, or at least substantially identical, are assigned the same number. is shown DETAILED DESCRIPTION OF THIS ITEM In this detailed explanation, the preferred configurations of the compression screw (V) which is the subject of the invention, only for better understanding of the subject and no limiting effect described in a way that does not constitute.

In Figure-1, the subject of the invention is the front part (A) and rear parts (B) of the compression screw (V). perspective views. The compression screw (V) subject to the invention is mainly composed of two consists of parts. The first part is the front part with a groove and a space inside. part (A) is located on the back of this front part (A) to shorten the length of the compression screw (V). The rear, which includes a groove mechanism that allows It consists of part (B).

The subject of the invention in Figure-2 is that both the front part (A) and the rear part (B) of the compression screw (V) mounted view. The front part (A) that will come into contact with the area to be applied first the part on which the pre-compression threads (12) and the male lock (15) part consists of two parts. Similarly, the rear part (B) is also rearward within itself. It consists of two parts, the part with the compression grooves (13) and the female lock (14). is formed.

The part where the ten parts (A) are on the pre-compression grooves (12) is made of three different diameters. is occurring. most distal; from the pre-compression threads (12) to the center of the screw. diameter of the threaded part (1)i front stem of the smooth body of the compression screw (V) diameter (2) and the diameter of the lumen (13), which forms the inner part of the compression screw (V). There is a relationship between the diameter of the threaded part (1)> the diameter of the anterior body (2)> the diameter of the lumen (3).

The diameter of the male lock (15) that forms the other part of the ten parts (A) is the male lock diameter (4) is named. Mentioned male lock diameter (4) and Iumene diameter (3) are equal to each other. length.

Diameter of the part where the rear part (B) rests on the rear compression ribs (13), rear spline The section diameter is expressed as (8). Female lock (14) forming the other part of the ten parts The age of the part is expressed as the female lock diameter (7).

In Figure-3, 3a and 4, the subject of the invention is the front part (A) and rear part of the compression screw (V). (B) and perspective views of the locking system (K). essential element of the invention lock system (K); It consists of two parts, the female lock (14) and the male lock (15). Male the lock (15) is in the part referred to as the front part (A). Said male lock (15) dis There are lock grooves (5) formed at equal intervals on the part of the latch, which provide locking.

The female lock (15) is in the part referred to as the rear part (B). aforementioned female lock Thread slots (6) on the inside of the (14) cut to fit the lock grooves (5) are available. If it is on the outer part of the said female lock (14), the female lock (14) of the male lock (15) multiple flexing gaps (9) has been created.

The male lock (15) must be aligned with the thread slots (6) on the inner part of the female lock (14). As soon as the compression screw (V) is shortened thanks to the locking system (K), the bone fragments compression occurs. The compression created by the locking system (K) is permanent. (Figure-Sb).

The movement of the female lock (14) and the male lock (15) in the body where it will be applied is a screwdriver. provided by means of Female lock clamping space on female lock (14) for screwdriver (11), and on the male lock (15), the compression gap (10) for the male lock is formed (Figure-4).

Firstly, the compression screw (V) is inserted into the area to be surgically treated as a single piece. enters. It is long according to the size of the case to be applied, and if it is desired to be shortened, screwdriver through the female lock clamping space (11) on the female lock (14) and from here the male by reaching the male lock clamping space (10) formed on the lock (15), by turning the locking threads (5), they move inside the thread slot (6) and the compression screw (V) shortens the neck. Thanks to the shortened compression screw (K), the developed locking system (K) it will not extend back in any way. Thus, a settled compression will be provided.

Claims (1)

CLEANING The invention is a front part (A) with a groove in the front and a space inside, used in the stage of fracture fixation and compression during orthopedic surgical interventions in the medical field, on the back side of this front part (A), which shortens the compression screw (V), then It is a compression screw (V) consisting of the rear part (B) containing the thread mechanism that does not allow it to extend by locking. o Male lock (15) in said front part (A), which is formed at equal intervals on its outer part and has lock grooves (5) providing locking. Female lock (14) with slots (6), - Lock system (K) formed by the combination of lock grooves (5) formed on the male lock (15) outer part to be compatible with the groove slots (6) on the female lock (14) inner part. characterized by its content. It is a compression screw (V) according to claim 17, its feature is; it contains at least one lock groove (5), which is formed at equal intervals on the outer part of said male lock (15) and ensures that the male lock (15) remains fixed in the desired position within the female lock (14). It is a compression screw (V) according to claim 1, its feature is; said male lock (15) contains the space (10). It is a compression screw (V) according to claim 1, its feature is; said female lock (14) includes at least one groove slot (6), which is opened against the grooves (5) of the lock and ensures that the male lock (15) remains fixed in the desired position within the female lock (14). It is a compression screw (V) according to claim 1, its feature is; said female lock (14) includes at least one stretching space (9) on the outer part of the male lock (15) that allows it to move into the female lock (14) without breaking. It is a compression screw (V) according to claim 1, its feature is; it contains a female lock clamping space (11) formed on the said female lock (14) to provide movement with a screwdriver.