Spinal Surgery Retractor Scissors

Abstract

The invention relates to the field of medical technology, specifically a surgical retractor used in spinal surgery. The invention allows for the controlled opening or closing of the space between vertebrae through end structures fixed to pedicle screws, thus improving the surgeon's access to and ability to intervene in the surgical field during spinal operations.

Description

1 TARIFF Spinal Surgery Retractor Scissors TECHNICAL FIELD The invention contributes to the field of medical technology, particularly the surgical retractor 5 used in spinal surgery. The invention relates to pedicle screws for use in spinal surgeries. Thanks to the fixed end structures, the distance between the vertebrae is kept open in a controlled manner. or allows it to be kept closed, thus allowing the surgeon access to the surgical field. It increases its reach and intervention capabilities. PREVIOUS TECHNIQUE In the current state of the technique, a retractor is used in spinal surgical procedures. Scissors are simple devices that typically operate in one direction and lock at a specific opening level. It incorporates mechanical structures. In such systems, the surgeon adjusts the distance between the vertebrae. After opening it manually, the mechanism of the scissors locks into place, but this takes 15 minutes. The fixing mechanism generally does not allow for precise adjustment. The retractor opening... Since it is not possible to control and narrow the opening when necessary, the operation The desired level of stability may not be achieved during this period. In addition, in existing systems, there are elements that will hold the deployed retractor arms in position and A double-sided, reciprocal 20 that will prevent opening or closing under load. The support mechanisms of the rotor are not included. This deficiency affects the surgeon's work. it can limit the area and ensure the safety of manipulations on the spine. This can reduce the operation of such systems due to inadequate fastening and adjustment capabilities. This can prolong the duration and increase the risk of complications. Therefore, the current situation... Structural and functional limitations of systems affect the effectiveness of surgical interventions and 25 It negatively affects security. THE PURPOSE OF THE INVENTION The primary purpose of the invention is to replace existing retractors used in spinal surgery operations. By offering solutions to the structural and functional deficiencies of surgical scissors, 30 The aim is to provide a safer, more stable, and more controlled working environment in the processes. The invention incorporates a comb-shaped tip structure commonly used in current technology. Instead, rods that can be directly attached to the pedicle screws are used. These rods have their own... Thanks to its special head structures that can rotate around its axis, it remains in the area where it is placed. 2 It remains stable without slipping, allowing the device to be securely placed between the vertebrae. This makes settlement possible. Additionally, the joint mechanism located on the load arm can be used when necessary. It is designed to be fixed in place and maintain its current angle. This structure allows the surgeon to... It can precisely adjust the retractor opening and, when needed, the same 5 This allows him to maintain his position. However, high resistance and force were encountered during application. Considering the needs, the force arm / load arm ratio has been optimized, especially for the force. By increasing the length of the arm, the required force can be applied with less effort. It is targeted. 10 Finally, the system's locking mechanism ensures both the opening between the vertebrae... a pair that will allow for both the protection of the opening and its closure when necessary. It has gained versatile functionality. Thanks to this, the device can be used whenever the surgeon needs it. It can be securely fixed in both open and closed positions. LIST OF FIGURES Figure 1. General overview of the invention. Figure 2. Detailed view of the tip of the invention. Figure 3a. Alternating up-down movement of the load arms thanks to the secondary support. 20 demonstration of movements Figure 3b. Alternating up and down movement of the load arms thanks to the secondary support. demonstration of movements Figure 3c. Alternating up and down movement of the load arms thanks to the secondary support. demonstration of movements Figure 4a. Closed view of the scissors. 25 Figure 4b. Open view of the scissors. Figure 5. Detailed view of the locking mechanism on the force arms. Figure 6. Detail of the locking mechanism on the secondary support section. appearance The corresponding numbers in the figures are: 1. Force arm 2. Main support 3. Load arm 3 4. Movable tie rod end 5. Rotor connection pin 6. Steering arm 7. Secondary support 7.1. Second support locking teeth 5 8. Locking mechanism 8.1. Locking pin 8.2. Locking pin lever 8.3. Screw-type adjustment pin 8.4. Screw adjustment pin adjustment nut 10 8.5. Locking pin lever spring 8.6. Gear locking spring guide pin 8.7. Locking pin lever support 9. Force lever lock teeth DETAILED DESCRIPTION OF THE INVENTION The spinal retractor scissors described in this invention are particularly suitable for open spinal surgery. Used, the pedicle is fixed with screws, ensuring a safe and secure intervertebral surgical area. a lockable and movable device that allows for controlled opening or closing. It is a system. 20 Before surgery, standard implants are placed in each patient's vertebrae. In pedicle screws, if there is an existing rod, it is removed and thus the screw head is made the subject of the invention. The patient is made suitable for the use of a spinal retractor. This retractor is placed in the patient's vertebrae. The pedicle screw head structure, the load arms contained in the spinal retractor scissors subject to the invention (3) The tie rods (6) at the ends are positioned so that they align. Tie rods (6) 25 They have tie rod ends (4) which are movable. These tie rod ends (4) are their own It rotates freely around its axis thanks to the rotary connection pins (5). It is structured. The tie rod connection pins (5) are the connection of the movable tie rod head (4). to allow the tie rod (6) to move freely around the center at the point. It must be positioned correctly during installation and 30 minutes must be spent performing these operations. It prevents the movable tie rod end (4) from falling. In this way, the tie rod arms (6), pedicle This facilitates the placement of the screws in the correct position. The correct position is achieved. when this is done, the standard pedicle screw heads that are placed in the patient's vertebrae The tie rods (6) are stabilized by tightening the fixing nuts located therein. 4 The physician uses force to create or reduce the gap between the vertebrae. It applies a force on the arm (1). This force is located on the main support (2). The load is transmitted to the arms (3) and by the arms (3) it is transmitted to the tie rods (6). Main The support (2) is the basic rotary link between the force arm (1) and the load arm (3). It provides and supports the axial transmission of the applied force. Transmitted 5 After this force, the rod arms (6) show an outward opening movement. (Figure 4b). When the force is removed, it returns to its original position (Figure 4a). This With the opening movement, the rod arms (6) are fixed to the vertebrae via pedicle screws. Thanks to this, expansion between the vertebrae with the force applied to the arm (1) is provided. The position at which the resulting expansion is achieved is fixed. 10 When desired, the lever teeth (9) can be locked with the help of the locking mechanism (8). It is fixed. Locking mechanism (8); locking pin (8-1), locking pin lever (8-2), screw adjustment pin (8-3), adjustment nut (8-4), locking pin lever spring (8-5), gear locking spring guide pin (8-6) and locking pin lever support (8-7) parts This occurs by tightening the nut (8-4) mentioned herein, locking 15 The pin (8-1) applies pressure to the gaps on the lever lock teeth (9) and thus prevent it from moving, hindering the movement of the arms (1) The movement of the locking pin (8-1) is via the locking pin lever (8-2). It is checked. The locking pin lever support (8-7) is the locking pin lever. (8-2) forms the basis. The involuntary movement of the locking pin (8-1) 20 locking pin placed on the gear locking spring guide pin (8-6) to prevent The lever spring (8-5) applies a continuous upward force. On the other hand, the screw Adjustment pin (8-3) and the adjustment nut (8-4) placed on it, locking pin lever It allows adjustment against the force applied by the spring (8-5). Nut (8-4) When squeezed, the tension on the spring (8-5) increases and the locking pin (8-2) moves upwards 25 By doing so, the locks are released. When loosened, the spring (8-5) pressure decreases, and the pin (8-2) The downward movement is initiated and the locking process is completed. The retractor scissors described in the invention allow the surgeon to further expand the working area. The load arms (3) contained within it are directed downwards and upwards from a secondary support (7) point. These movements can be made. These movements are shown in Figure 3a, Figure 3b and Figure 3c. 30 In the desired position, the secondary support lock teeth (7-1) also form a locking mechanism. It can be locked and fixed with (8). Thus, the system can be fixed throughout the operation. It remains securely in the desired position. Secondary support lock teeth (7-1) on The locking mechanism (8) is also the same way; locking pin (8-1), locking pin lever (8-2), screw adjustment pin (8-3), adjustment nut (8-4), locking pin lever spring (8- 5), toothed locking spring guide pin (8-6) and locking pin lever support (8-7) It consists of parts such as the locking pin (8-1), secondary support locking teeth (7- 1) It provides fixation by inserting between them. The movement of the locking pin (8-1) provides locking. The locking pin is controlled via the lever (8-2). The locking pin is controlled via the lever support (8-5). 7) forms the support for the locking pin lever (8-2). The locking pin (8-1) To prevent unintentional movement, the gear locking spring is placed on the guide pin (8-6). The installed locking pin lever spring (8-5) provides a continuous upward force. On the other hand, the screw adjustment pin (8-3) and the adjustment placed on it are applied. nut (8-4), locking pin adjustment against the force applied by the lever spring (8-5) 10 This enables the nut (8-4) to be tightened, increasing the tension on the spring (8-5) and The locks are released by moving the locking pin (8-2) upwards. When loosened, the spring... (8-5) pressure is reduced, the pin (8-2) is moved downwards and the locking process is performed. This detailed structure allows the spinal retractor scissors to complete the operation for the surgeon. It offers both high maneuverability and operational safety during the process. Same 15 Over time, the system allows for precise adjustment and stabilization of the intervertebral space. By recognizing the problem, it increases the success of the surgery. 25

Claims

6 REQUESTS 1. It is a retractor scissors used in spinal surgery operations, and its feature is; - the arm of force to which the force is applied (1), - load arms (3), 5 that enable the force to be transferred to the end of the scissors. - Main support providing connection between force arm (1) and load arms (3). (2), - to be fixed to pedicle screws placed in the patient's vertebrae structured, tie rods (6) located at the ends of the load arms (3), - movable rod 10 which can rotate around its own axis and is attached to these rod arms (6). heads (4), - A load arm (3) that enables the load arms to move up and down. secondary support (7), secondary support lock teeth for fixing this movement (7-1) and a locking mechanism (8) that locks them, - Force 15 configured to fix the position on the force lever (1) the opening of the lever (1) on the lock teeth (9) and on these teeth (9) another locking mechanism configured for securing (8) It is characterized by its inclusion.

2. The downward and upward movement of the load arms (3) mentioned in Claim 1 20 positioned on the secondary support lock teeth (7-1) that enable fixation. The locking mechanism is (8), and its feature is; locking pin (8-1), locking pin lever (8-2), screw adjustment pin (8-3), adjustment nut (8-4), locking pin lever spring (8-5), toothed locking spring guide pin (8-6) and locking pin lever support It is characterized by containing parts (8-7).

3. Ensuring the fixation of the opening of the arms of force (3) mentioned in Claim 1 25 The locking mechanism is (8), and its feature is; locking pin (8-1), locking pin lever (8-2), screw adjustment pin (8-3), adjustment nut (8-4), locking pin lever spring (8-5), toothed locking spring guide pin (8-6) and locking pin lever support It is characterized by containing parts (8-7).

4. The scissors mentioned in Claim 1 are characterized by the fact that the tie rod ends (4) can be removed without falling off 30 It is characterized by containing rotary tie pins (5) that hold it in place.

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