TH686A3

TH686A3 - Spinal fixation device

Info

Publication number: TH686A3
Application number: TH103000359U
Authority: TH
Inventors: ศุขะวณิช นายพรตพิมล; พรตพิมลศุขะวณิช นาย
Filing date: 2001-07-12
Publication date: 2002-05-13

Abstract

อุปกรณ์ยึดตรึงกระดูกสันหลังได้ประดิษฐ์ขึ้นเพื่อให้เหมาะสมกับสรีระของคนในซีกโลกตะวันออก อุปกรณ์ ยึดตรึงกระดูกสันหลังของการประดิษฐ์นี้ ประกอบไปด้วยสกรูสำหรับตรึงเข้ากับกระดูกสันหลังและมีบ่าเว้าเข้าไป บริเวณคอสกรูเพื่อให้คีมสามารถยึดจับสกรูและดึงกระดูกสันหลังให้ลอยตามสกรู ขึ้นมาในตำแหน่งที่ต้องการได้ แกน ตามแนวยาวที่สอดอยู่ในร่องเหนือส่วนบนของสกรู เพื่อยึดสกรูแต่ละตัวให้อยู่ในแนวเดียวกันตามตำแหน่งที่ต้องการ ส่วนบนของสกรูด้านในจะทำเป็นเกลียวละเอียดเพื่อให้สวมเข้าได้อย่างพอดีกับตัวยึดจับแกนด้านใน และใช้น็อตหก เหลี่ยมสวมเพื่อยึดอีกครั้งเป็นตัวยึดจับแกนด้านนอก ซึ่งเป็นเกลียวหยาบยึดด้วยน็อตหกเหลี่ยมขันให้แน่นเพื่อบีบปลาย สกรูและแกนในให้แน่นอีกด้วย อุปกรณ์ยึดตรึงกระดูกสันหลังโดยเหมาะสมแล้วจะมีสกรูยึดตรึง 4 ตัวและ แกนตาม แนวยาวสองแกน รวมทั้งกลไกยึดตามแนวขวางจะใช้เมื่อมีการใช้สกรูยึดตรึง 6 ตัวขึ้นไป เพื่อต้องการยึดให้แกนตาม แนวยาวมั่นคงมากยิ่งขึ้น The spinal fixation device was invented to fit the human body in the Eastern Hemisphere. It consists of a screw that is attached to the spine and has a shoulder concave. Coscroic area so that the pliers can hold the screw and pull the spine to float along the screw. Up in the desired position, a longitudinal axis is inserted into the groove above the top of the screw. To hold each screw in the same alignment as desired The top of the inner screw is finely threaded so that it fits snugly over the inner stud and a hexagon nut is used to fix it again as an outer stud. Which is a coarse thread, secured with a hexagon nut, tightened to squeeze the end Screw and inner core are tightened as well. An appropriate spinal fixation device has four fixing screws and two longitudinal axes, as well as a transverse fixation mechanism to be used when 6 or more fixing screws are used to secure the axes. More stable longitudinal lines

Claims

1.Spinal fixation device It consists of a screw (10) for fixing the longitudinal spine (5) inserted in the groove. (8) In the upper part of the screw (10) to hold each screw (10) in the same alignment as desired, the upper part of the inner screw (6) forms a fine thread at the bottom end. 1 turn makes the shaft chuck (4) a tapered tip for easy tightening and to prevent twisting when tightening and fitting. This will hold the longitudinal axis (5) firmly in the groove (8). (4) A hexagonal hole will be drilled in the center (3) for inserting a hexagon nut. (Not shown) and the hexagonal hole (3) will not penetrate, thus the bottom axle holder has a face area. Cut (4.1) allows more space in contact with core (5) (B) for rigid fixation strength. Outside of the screw There is a coarse thread area (7) for the nut (1), the inside of which is also made a coarse thread (2), so that the hex nut (1) is easy to wear and does not twist when tightening. And can squeeze the screw head to squeeze the inner core holding holder (4) firmly and without Opportunity to loosen the screw from the gripping position by using a coarse thread (7) to hold the axis (5) 2 additional points (A) and the screw (10), the upper part is also made into the shoulder groove ( 9) Hold it so that the pliers can hold screws. And pull the spine to float on the screw (10) up in the position that the doctor wants as well

2. Spinal fixation device according to claim 1, where the hex-shaped nut (1) will act as The holder holds the outer screw rod (7) with coarse thread (2) and inside with another nut (4) to increase the area of contact with the rod. Longitudinal (5) one point This increases the stability of the longitudinal axis (5), and the hex nut (1) can be easily worn on the screw. There is no twist when tightening the nut (1) because it is made of a coarse thread, allowing doctors to tighten the nut easily and quickly to achieve a firm grip.

3. Spinal fixation device This consists of a screw (10) for fixing to the longitudinal spine (5) inserted into a groove (8) in the top of the screw (10) to secure each screw (10) in place. The top of the inner screw (6) is threaded so that it fits snugly into the inner clamp (4), which tightens the longitudinal axis (5) in place. The groove (8) on the screw (10) is screwed into the hole (3) by using a hexagonal iron for a secure and stable fastening. The external axle holder (1) covers the screw with a hexagon nut. Coarse thread (2) is attached to the outer bottom thread of the screw (7) and the transverse clamp mechanism to provide additional stability to the screw (10) and the longitudinal axis (5). It consists of a "C" (14) anchors that open one side into a groove to accept. Longitudinal axis (5) The upper end of the "C" coupling (12) is made into a groove for inserting the horizontal axis (13) and the inner axle holder cover. And the outside will cover to the thread (15) above the "C" fixing (11) to tighten. Squeeze the transverse axis (13) in the groove (12) and the longitudinal axis (5) together at the tip on the "C" shaped anchor between the groove (14) and the groove (12).

4. Spinal fixation according to claim 4, where the diameter of the transverse axis (13) is appropriately smaller than the diameter of the longitudinal axis (5), and then dissected the center of the transverse axis (13). ) Is 3 mm, and the diameter of the longitudinal axis (5) is 5.5 mm and 6 mm.