WO2013032200A2 - Punch for spinal surgery - Google Patents

Abstract

The present invention relates to a punch for spinal surgery that enables the easy removal of a planar bone and a ligament of the spine which are parallel to or in the same direction as the direction of approach of the punch for spinal surgery. The punch of the present invention consists essentially of: a fixing handle (102) installed diagonally; a fixing horizontal portion (104) formed to extend a certain length on one end of the fixing handle (102); a fixing arc portion (106) formed to extend a certain length on one end of the fixing horizontal portion (104), and having a through-hole (105) in one end of a body thereof; a projecting portion (108) formed to extend a certain length upward on the other end of the fixing arc portion (106); a hinge (110) pivotably installed on the other end of the fixing horizontal portion (104); a pivoting handle (112) pivotably installed on the hinge (110), and pivoted forward and rearward by pressure; a moving horizontal portion (114) installed to be capable of sliding a certain distance along a top surface of the fixing horizontal portion (104), provided with a screw thread (113) on the front surface at one end of a body thereof, and connected to the pivoting handle (112) for sliding forward and rearward on the top surface of the fixing horizontal portion (104) according to the pivoting of the pivoting handle (112); and a gear (116) rotatably installed on the inside of one end of the fixing horizontal portion (104), engaged with the screw thread (113) of the moving horizontal portion (114), and rotatable according to the sliding of the moving horizontal portion (114).

Description

Spinal surgery punch

The present invention relates to a spinal surgery punch, and more particularly, to a spinal surgery punch that can easily remove the flat bone or ligaments of the spine that is parallel or in the same direction as the approach direction of the spinal surgery punch. will be.

In general, the spine is the vertebral body (1), pedicle, lamina, transverse process (3), spinous process (5), spinal canal (7), posterior ligament (9) and the pedicle 11 and the like, there is a spinal canal (spinal canal) through which the nerve passes.

The spinal cord passes through a spinal cord and nerve roots branching therefrom and a dural sac containing them.

On the other hand, surgery in many vertebrae is due to decompression of the inner or peripheral nerves of the spinal canal, which includes neurodecompression in nerve compression due to disc herniation (disc), spinal stenosis, and fractures (rear decompression, anterior). Decompression).

Here, posterior decompression is widely used in disc and spinal canal stenosis, which is a method of reaching the nerves by removing the lamina of the back of the spine, and anterior decompression is a method of decompressing the nerves while removing the vertebral bodies and intervertebral discs in front of the spine. Approaching the front of the spine, the front of the nerve can be removed by removing the vertebral body placed in front of the nerve tube.

As a mechanism widely used in the above-described neurodecompression surgery, as shown in Figure 2, a spinal surgery punch (also called a "kerrison punch") is used.

As shown in Figure 2 the punch for spinal surgery according to the prior art,

A fixed handle 10 installed at an angle;

A fixed horizontal portion 20 formed at one end of the fixed handle 10 at a predetermined length;

A hinge 30 rotatably installed at one end of the fixed horizontal portion 20;

Rotating handle 40 is rotatably installed on the hinge 30, and rotates back and forth by pressing;

It is installed at a predetermined length to be slidable along the upper surface of the fixed horizontal portion 20, is connected to the pivot handle 40 in front of the upper surface of the fixed horizontal portion 20 in accordance with the rotation of the pivot handle (40) A moving horizontal part 50 sliding backwards;

An elastic part (60) installed between the fixed handle (10) and the rotating handle (40), wherein the rotating handle (40) is repositioned when the rotating handle (40) is pressed;

Consists of the support portion 70 formed to extend a predetermined length upwards on the other end of the fixed horizontal portion (20).

Here, the front part of the spinal surgery punch serves as a forceps, as shown in Figures 2 to 4, it can be made in a variety of shapes.

However, when performing decompression using the conventional spinal surgery punch described above, the posterior wall and posterior ligament of the vertebral body are in direct contact with the anterior surface of the spinal nerve, Removal of the existing ligament ligament had a problem that accompanied the risk of damage to the nerve tissue.

In addition, there is a known method of removing the bone using an osteotome, but using the bone in the vicinity of the nerve, there was a lot of risk of damaging the nerve.

And, it is convenient to use a punch (kerrison punch), which is widely used in the known backward spinal surgery, but there was a difficult problem in the surgical field of view of the lateral body of the spine.

Therefore, the conventional spinal surgery punch has a problem that it is not suitable to remove the vertebral posterior bone fragments and posterior ligament ligaments.

The reason for this is that the existing spinal surgery punch is designed based on the removal of the operator's 'flat bone perpendicular to the gaze', and the present applicant defines the vertebral posterior bone fragment and its posterior ligament upon lateral reaching of the vertebral body. This is because it appears as a flat bone or ligament plane parallel to the operator's gaze.

Therefore, no clear device has been developed for its removal, and the present inventors have devised a new concept of spinal surgery punches that enable the spinal surgery punch to remove spatially different dimensions of flat bone and ligaments.

Accordingly, the present invention has been made to solve the above problems according to the prior art, the object of the present invention is to facilitate the flat bone or ligament of the spine lying parallel or in the same direction as the approach direction of the spinal surgery punch. It is to provide a spinal surgical punch that can be removed.

However, the object of the present invention is not limited to the above-mentioned object, other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Spinal surgery punch according to the present invention for achieving the above object,

A fixed handle 102 installed at an angle;

A fixed horizontal portion 104 formed at one end of the fixed handle 102 at a predetermined length;

A fixed arc portion 106 extending from one end of the fixed horizontal portion 104 to a predetermined length and having a through hole 105 at one end of the body;

A protruding portion 108 formed at a predetermined length upwardly at the other end of the fixed arc portion 106;

A hinge 110 rotatably installed at the other end of the fixed horizontal portion 104;

Rotating handle 112 is rotatably installed on the hinge 110, and rotates forward / backward by the pressing;

The fixed horizontal part 104 is installed to be slidable along a top surface of the fixed horizontal part 104, and provided with a screw thread 113 on the bottom of one end of the body, and connected to the pivoting handle 112, the pivoting handle 112 A moving horizontal part 114 sliding forward / backward from an upper surface of the fixed horizontal part 104 in accordance with the rotation of the;

Gear 116 rotatably installed inside one end of the fixed horizontal portion 104 is engaged with the thread 113 of the movable horizontal portion 114, the sliding horizontal portion 114 in accordance with the sliding of the horizontal portion (114) Wow;

It is installed at a predetermined length so as to be slidable along the bottom of the fixing arc (106), one end of the body is accommodated in the through hole 105 of the fixing arc (106) and at the bottom of one end of the body A moving arc portion 118 provided with a thread 113 in engagement with the gear 116 and sliding forward / backward as the gear 116 rotates;

A support part (120) formed extending at a predetermined length upwardly at the other end of the movable arc (118);

It is installed between the fixed handle 102 and the rotating handle 112, when pressing the rotating handle 112, it is composed of an elastic portion 122 for repositioning the rotating handle 112.

As described above, the spinal surgery punch according to the present invention transforms a linear motion into a rotational motion or a direction change linear motion, so that the flat bones and ligaments of the spine lying parallel or in the same direction as the approach direction of the spinal surgery punch. There is an effect that can be easily removed.

In addition, the present invention can adjust the strength and strength of the force by adjusting the size of the gear bar, the range of the force applied to the hand and the bone structure by appropriately adjusting the moving distance and the length of the arc used in the rotation in a straight line There is an effect that can be fine-tuned according to the range of force to remove.

1 is an enlarged view of the main part of the spine,

2 is a view showing a first embodiment of a spinal surgery punch according to the prior art,

3 is a view showing a second embodiment of the spinal surgery punch according to the prior art,

4 is a view showing a third embodiment of the spinal surgery punch according to the prior art,

5 is a view showing a first embodiment of a spinal surgery punch according to the present invention,

6 is an enlarged view of the main portion of FIG. 5;

7 is a view showing a second embodiment of the spinal surgery punch according to the present invention,

8 is a view showing a third embodiment of the spinal surgery punch according to the present invention,

9 is a view showing a fourth embodiment of the spinal surgery punch according to the present invention,

10 is a view showing a fifth embodiment of the spinal surgery punch according to the present invention,

11 is a view showing a state of use of the punch for spinal surgery according to the present invention.

* Explanation of Codes *

100: spinal surgery punch

102: fixed handle

104: fixed horizontal portion

105: through hole

106: fixed arc part

108: protrusion

110: hinge

112: rotation handle

113: thread

114: moving horizontal part

116: gear

118: moving ho

120: support

122: elastic part

250: side moving part

300: double gear

350: sliding plate

Hereinafter, a preferred embodiment of the spinal surgery punch according to the present invention will be described. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

5 is a view showing a first embodiment of a spinal surgery punch according to the present invention, Figure 6 is an enlarged view of the main portion of FIG.

As shown in Figure 5 to Figure 6 the spinal surgery punch 100 of the first embodiment according to the present invention,

A fixed handle 102 installed at an angle;

A fixed horizontal portion 104 formed at one end of the fixed handle 102 at a predetermined length;

A fixed arc portion 106 extending from one end of the fixed horizontal portion 104 to a predetermined length and having a through hole 105 at one end of the body;

A protruding portion 108 formed at a predetermined length upwardly at the other end of the fixed arc portion 106;

A hinge 110 rotatably installed at the other end of the fixed horizontal portion 104;

Rotating handle 112 is rotatably installed on the hinge 110, and rotates forward / backward by the pressing;

The fixed horizontal part 104 is installed to be slidable along a top surface of the fixed horizontal part 104, and provided with a screw thread 113 on the bottom of one end of the body, and connected to the pivoting handle 112, the pivoting handle 112 A moving horizontal part 114 sliding forward / backward from an upper surface of the fixed horizontal part 104 in accordance with the rotation of the;

Gear 116 rotatably installed inside one end of the fixed horizontal portion 104 is engaged with the thread 113 of the movable horizontal portion 114, the sliding horizontal portion 114 in accordance with the sliding of the horizontal portion (114) Wow;

It is installed at a predetermined length so as to be slidable along the bottom of the fixing arc (106), one end of the body is accommodated in the through hole 105 of the fixing arc (106) and at the bottom of one end of the body A moving arc portion 118 provided with a thread 113 in engagement with the gear 116 and sliding forward / backward as the gear 116 rotates;

A support part (120) formed extending at a predetermined length upwardly at the other end of the movable arc (118);

It is installed between the fixed handle 102 and the rotating handle 112, when pressing the rotating handle 112, it is composed of an elastic portion 122 for repositioning the rotating handle 112.

7 to 8, instead of the gear 116, a pulley 202 connected by a chain 200 may be used, and a cam shaft 300 may be used instead of the gear 116. Can be used.

Therefore, the gear 116, the pulley, the camshaft is a linear motion rotational motion or

Is to change the direction of linear motion,

In this case, any means capable of converting linear motion into rotational or directional linear motion may be used instead of the gear 116.

Referring to the assembly process and use state of the spinal surgery punch according to the present invention configured as described above are as follows.

Here, the assembly process of the spinal surgery punch according to the present invention can be assembled in various ways depending on the assembler.

First, the fixed horizontal portion 104 is positioned at a certain place. At this time, the fixed handle 102 is connected to one end of the fixed horizontal portion 104, the other end of the fixed horizontal portion 104, the fixed arc having a protrusion 108 and the through hole 105 (弧) The unit 106 is connected.

The hinge 110 is rotatably installed at the other end of the fixed horizontal portion 104.

The gear 116 is rotatably installed in one end of the fixed horizontal portion 104.

In addition, the pivot knob 112 is rotatably installed on the hinge 110 and an elastic portion 122 is installed between the fixed knob 102 and the pivot knob 112.

In addition, while the movable horizontal portion 114 having a thread 113 is installed on the upper surface of the fixed horizontal portion 104, the movable horizontal portion 114 is installed to be slidable on the upper surface of the fixed horizontal portion 104. do. At this time, the bottom surface of one end of the movable horizontal portion 114 is connected to the rotation handle 112, the thread 113 of the movable horizontal portion 114 is engaged with the gear 116.

In addition, a movable arc portion 118 having a support portion 120 and a screw thread 113 is provided on a bottom surface of the fixed arc portion 106 provided with a through hole 105. The part 118 is provided in the bottom of the fixed arc part 106 so that sliding is possible. At this time, one end of the movable arc portion 118 is accommodated in the through hole 105 of the fixed arc portion 106, and the thread 113 of the movable arc portion 118 is a gear 116. )

When the assembly of the spinal surgery punch according to the present invention as described above is completed, as shown in Figure 11, the spinal surgery punch according to the present invention is used for the spine to perform anterior decompression.

Therefore, during anterior decompression surgery, the spinal surgery punch is approached to the spine side, and the plane bone of the spine is removed according to the manipulation of the spinal surgery punch.

On the other hand, as shown in Figure 9, the punch for spinal surgery of the fourth embodiment according to the present invention, the first gear 300-1 and the second gear (300-2) in front of the fixed horizontal portion 104 The double gear 300 having the bar is installed, and the side moving part 250 is installed to slide on the second gear 300-2 of the double gear 300, and the first gear of the double gear 300 is provided. A moving arc part 118 is installed to slide on 300-1).

Here, the first gear 300-1 may control the efficiency of the force by controlling the size difference between the second gear 300-2.

On the other hand, as shown in Figure 10, the punch for spinal surgery of the fifth embodiment according to the present invention is formed in the receiving groove (not shown) in front of the fixed horizontal portion 104, the receiving groove A double gear 300 having a first gear 300-1 and a second gear 300-2 is installed therein.

A sliding plate 350 is installed to slide on the second gear 300-2 of the double gear 300, and a movable arc part slid to slide on the first gear 300-1 of the double gear 300. 118 is installed.

Operation of the spinal surgery punch of the fourth embodiment and the fifth embodiment is the same as the operation of the first embodiment of the spinal surgery punch according to the present invention.

The detailed description of the invention is merely exemplary of the invention, which is used only for the purpose of illustrating the invention and is not intended to limit the scope of the invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (5)

Punch for spinal surgery, characterized in that to easily remove the flat bone or ligament of the spine in order to convert the linear motion into a rotational motion or direction change linear motion. A fixed handle 102 installed at an angle; Fixed horizontal portion 10 formed at one end of the fixed handle 102 to extend a certain length 4) and; One end of the fixed horizontal portion 104 is formed extending to a predetermined length, one end of the body A fixed arc portion 106 having a through hole 105 in the portion; Protruding to the other end of the fixed arc (106) extending in a predetermined length upwards Section 108; A hinge 110 rotatably installed at the other end of the fixed horizontal portion 104; Rotating handle 112 is rotatably installed on the hinge 110, and rotates forward / backward by the pressing; The fixed horizontal part 104 is installed to be slidable along a top surface of the fixed horizontal part 104, and provided with a screw thread 113 on the bottom of one end of the body, and connected to the pivoting handle 112, the pivoting handle 112 A moving horizontal part 114 sliding forward / backward from an upper surface of the fixed horizontal part 104 in accordance with the rotation of the; Gear 116 rotatably installed inside one end of the fixed horizontal portion 104 is engaged with the thread 113 of the movable horizontal portion 114, the sliding horizontal portion 114 in accordance with the sliding of the horizontal portion (114) Wow; It is installed at a predetermined length so as to be slidable along the bottom of the fixing arc (106), one end of the body is accommodated in the through hole 105 of the fixing arc (106) and at the bottom of one end of the body A moving arc portion 118 provided with a thread 113 in engagement with the gear 116 and sliding forward / backward as the gear 116 rotates; A support part (120) formed extending at a predetermined length upwardly at the other end of the movable arc (118); It is installed between the fixed handle 102 and the rotating handle 112, when pressing the rotating handle 112, the flat bone or ligament of the spine easily with the elastic portion 122 to place the rotating handle 112 in place Punch for spinal surgery characterized in that it can be removed. The method of claim 2, Instead of the gear 116, a pulley 202 connected by a chain 200 may be used, and the cam shaft 300 may be used to easily remove the planar bone or ligament of the spine. Spinal surgery punches. The method of claim 2, Punch for spinal surgery, characterized in that the dual gear 300 and the multi-gear having a first gear (300-1) and the second gear (300-2) in front of the fixed horizontal portion 104 can be installed . The method of claim 4, wherein Spinal surgery punch, characterized in that the side-moving portion 250 can be installed on the side of the fixed horizontal portion 104 to slide on the second gear (300-2) of the double gear (300).

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