ES2558755A1 - System for locking suture ends in bone fixation devices (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

System for blocking suture ends in bone fixation devices. System for blocking suture ropes (800) in bone fixation devices (100), comprising an upper fixation plate (101) and a lower friction plate (102), engageable in a bone fixation device (100), where : - the upper fixing plate (101) defined geometrically to adapt to the head (103) of the bone fixation device (100) and to be fixed to the upper part (104) of the bone fixing device (100); y - the lower friction plate (102) defined geometrically to adapt to the upper part (104) of the bone fixation device (100) and to be fixed to the upper fixing plate (101), leaving a rail between the upper fixing plate (101) and the lower friction plate (102) where at least one end (800) of suture is placed, making a loop (120), with a tension until it is locked between both plates (101, 102). (Machine-translation by Google Translate, not legally binding)

Description

image 1

image2

image3

image4

image5

image6

image7

Bone fixation device (100) in the bone tissue (110) of the operative field, as shown in Figure 11A. This phase is called pre-insertion because the surgical screw or bone fixation device (100) must be threaded into the bone (110) until it is visible - visually - that the lower friction plate (102) stops rotating in solidarity with the surgical screw or bone fixation device (100). Rotation desynchronization will occur when the anti-rotation pressure tabs (301) of the upper fixing plate (101) are partially seated in the bone (110), as shown in Figure 11B. The visual information of the de-synchronization of the rotation is produced by the notch or external notches (602) of the lower friction plate (102) - which is in solidarity with the upper plate (101) - at the moment when it stops turning when the surgical screw or bone fixation device (100).

4) Placing and fixing a free suture end (800)

The next phase of the surgical technique is to place, to fix, a rope (800) free of surgical thread to a surgical screw or bone fixation device (100) pre-inserted, equipped with the proposed locking system. The technique consists in creating a loop (120) of thread - a volute is sufficient - in the area between the plates (101, 102), as shown in Figure 12. The surgeon must establish the tension he considers appropriate for the thread pulling the free end behind the loop. The desired tension must be maintained manually until the next stage of the surgical technique is finished.

5) Locking the rope (800) of free suture

The final phase of the surgical technique will consist of blocking the prestressed end, so that the tension that has been manually printed by the surgeon is maintained by itself. The blocking is achieved simply by finishing the screwing of the surgical screw or bone fixation device (100), as shown in Figure 13. As specified, the final screwing process must be performed while maintaining the tension that you have manually applied the surgeon at the end (800) free of the loop (120) of suture thread. Once the blocking phase is finished, the suture end (800) is securely attached to the system and the surgeon can release the pressure that has been applied. It is then possible to cut the excess suture thread if deemed necessary.

The main advantages of the invention can be listed here:

9

image8

any other suture thread fixation system marketed to date.

Note that in this text, the term "comprises" and its derivations (such as "that

5 includes ”, etc.) should not be understood in an exclusive sense, that is, these terms should not be interpreted as excluding the possibility that what is described and defined may include elements, stages, etc. additional

10

eleven

Claims (1)

image 1 image2