KR20230014351A - Apparatus for guide - Google Patents

Abstract

A guide apparatus according to an embodiment comprises: a housing which can penetrate an object; a first angle adjusting unit which is connected to one end of the housing, and adjusts a first angle of the housing; a second angle adjusting unit which is connected to the first angle adjusting unit, and adjusts a second angle of the housing; a central adjusting unit which is connected to the second angle adjusting unit, and adjusts the height of the housing; and a gripping unit which is disposed on a lower side of the central adjusting unit, to grip spine.

Description

Guide device {APPARATUS FOR GUIDE}

The description below relates to the guide device.

Pedicle screw insertion is a surgical method for correcting spinal deformity and securing stability by spinal fixation using pedicle screws. Correction or fixation of the spine by inserting a screw into the pedicle at a location called the pedicle of the vertebrae of the spine and connecting adjacent vertebrae by inserting a metal bar into the hole in the head of the pedicle screw inserted into the pedicle of the vertebral bone at several levels. to obtain an effect. In performing various orthopedic procedures targeting the spine, it is very important not to damage other parts of the body while easily accessing the target area. In order to reduce the risk of such damage, the surgeon's skill level may be increased or a guide for the spine may be used. In particular, when a screw is inserted into the pedicle, an incision is made on the back of the patient and the operation is performed while looking at the upper surface of the vertebral bone. In addition, when pedicle screw insertion is performed with a percutaneous approach, the position of the pedicle cannot be directly confirmed, and the pedicle surface must be confirmed through an x-ray image and a very small incision in the skin before screw insertion. Because of this, surgery is performed without knowing exactly the direction of the pedicle screw, and the screw penetrates the pedicle and enters the spinal canal, causing damage to the spinal nerve.

US registered patent US 8,870,889 B2 (registered on October 28, 2014) discloses a surgical guide used during pedicle surgery.

The above background art is possessed or acquired by the inventor in the process of deriving the present invention, and cannot necessarily be said to be known art disclosed to the general public prior to filing the present invention.

An object of one embodiment is to provide a guide device for guiding the direction and position of an object inserted into the spine.

A guide device according to an embodiment includes a housing capable of penetrating an object; a first angle adjusting unit that is connected to one end of the housing and adjusts a first angle of the housing; a second angle adjusting unit connected to the first angle adjusting unit to adjust a second angle of the housing; a central adjusting unit connected to the second angle adjusting unit to adjust the height of the housing; And it may include a gripping portion disposed below the central control unit to grip the spine.

The guide device may include two housings, each of the first angle adjusting unit and the second angle adjusting unit, respectively, and disposed on both sides of the center adjusting unit.

The first angle and the second angle may be defined in different planes.

The center control unit may include a first main member connected to the holding unit; a second main member disposed on one side of the first main member in a separated state; a first connecting member connecting the first main member and the second main member; a height adjusting member for adjusting a height of the second main member relative to the first main member; And it may include a second connecting member extending through the second main member, the second angle adjusting unit is connected to both ends, respectively.

The second connecting member may adjust the position of the second angle adjusting unit with respect to the center adjusting unit by sliding with respect to the second main member.

The gripping part is formed in the form of a clip, and may be fixed by clamping the spine from both sides.

The first angle adjusting unit may include a first rail curved in an arc shape; and a first angle determining member connected to the housing and moving on the first rail to determine the first angle.

A second angle adjusting unit, a second rail connected to the center adjusting unit, curved in an arc shape; and a second angle determining member connected to the first rail and moving on the second rail to determine the second angle.

The housing may include a long frame connected to the first angle determining member and moving integrally; And it may include a hole penetrating the frame.

An upper end of the frame may be connected to the first angle determining member, and a cross-sectional area of a lower end of the frame may decrease downwardly.

1 is a diagram showing the spinal column and vertebrae.
2 is a perspective view of a guide device according to an embodiment.
3 is a view showing an object guided by a guide device according to an embodiment.
4 is a plan view showing a state in which a guide device according to an embodiment is applied to a spine.
5 is a side view showing a state in which a guide device according to an embodiment is applied to a spine.

Hereinafter, embodiments will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing the embodiment, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment, the detailed description will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

Components included in one embodiment and components having common functions will be described using the same names in other embodiments. Unless stated to the contrary, descriptions described in one embodiment may be applied to other embodiments, and detailed descriptions will be omitted to the extent of overlap.

1 is a view showing the spinal column and the spine, FIG. 2 is a perspective view of a guide device according to an embodiment, and FIG. 3 is a view showing an object guided by the guide device according to an embodiment.

1 to 3, the guide device 1 guides the object 2 while being coupled to the spine 3 so that the object 2 can be inserted into the target position in an appropriate direction to the spine. can The guide device 1 may be used for pedicle screw insertion for correcting spinal deformity and securing stability. For example, utilizing a guide device (1), a screw is inserted into a location called the pedicle of the spine and a metal bar is inserted into a hole in the head of the pedicle screw inserted into the pedicle of several levels of the vertebral bone to close the pedicle. By connecting one vertebrae, the effect of correction or fixation of the spine can be obtained. Meanwhile, the guide device 1 may be applied not only to the spine 3 but also to any bones constituting the spine. Since the guide device 1 can three-dimensionally adjust the insertion position and angle of the object 2, the user can accurately perform the planned operation through simulation or the like. For example, the guide device 1 can perform an order, such as the direction in which an object is inserted into the spine 3 determined through medical image data, etc., within a small error range. In addition, if the guide device 1 is used, , Surgery can be performed according to the guide manual, so even when a surgeon with low skill level performs the surgery, it is possible to reduce the risk due to the fact that it is difficult to check the pedicle with the naked eye. Here, the object 2 may include a bone fixing material such as a pedicle screw or a K-wire. For example, the guide device 1 may include a housing 11, a first angle adjusting unit 12, a second angle adjusting unit 13, a center adjusting unit, and a gripping unit 15. Here, the housing 11, the first angle adjusting unit 12, and the second angle adjusting unit 13 are each formed in two pieces, and may be disposed on both sides of the center adjusting unit 14, respectively. The guide device 1 not only has such a symmetrical structure, but is not shown, but the housing 11, the first angle adjusting unit 12 and the second angle adjusting unit 13 are each a center adjusting unit ( 14) may also include a type formed on only one side.

The housing 11 may pass through the object 2 . Specifically, the housing 11 may have a configuration that directly guides the insertion of the target object substantially as the target object 2 passes therethrough. For example, the housing 11 may include a frame and a hole.

The frame may be formed in a long shape that is connected to the first angle determining member 122 and moves integrally. The coupling angle between the frame and the first angle determining member 122 may be coupled such that a virtual plane on which the first angle determining member 122 moves is parallel to a central axis of the frame. For example, the upper end of the frame may be connected to the first angle determining member 122, and the cross-sectional area of the lower end of the frame may decrease as it goes downward. According to this structure, since the view of the lower end of the frame is secured, the process of inserting the object 2 into the pedicle through the housing 11 and the insertion position or angle can be easily checked with the naked eye.

Since the hole is formed to pass through the frame, the object 2 can move through the hole.

The first angle adjuster 12 is connected to one end of the housing 11 to adjust the first angle of the housing 11 . For example, the first angle adjuster 12 may include a first rail 121 and a first angle determining member 122 .

The first rail 121 may be curved in an arc shape. For example, the first rail 121 may have a circular arc shape and an angle may be marked on the side surface so that the first rail 121 gets closer to the pedicle as it moves away from the center of the guide device 1. Meanwhile, the first rail 121 is not necessarily limited to a circular arc shape, and may be curved to have an elliptical curvature depending on the type or method of treatment.

The first angle determining member 122 may determine the first angle by being connected to the housing 11 and moving on the first rail 121 . The first angle determining member 122 is provided with a fixing screw so that the housing 11 can be fixed by tightening the screw to have a preset first angle.

The second angle adjusting unit 13 is connected to the first angle adjusting unit 12 to adjust the second angle of the housing 11 . For example, the second angle adjuster may include a second rail 131 and a second angle determining member 132 .

The second rail 131 is connected to the center control unit 14 and may be curved in an arc shape. The second rail 131 is closer to the pedicle as it moves away from the center of the guide device 1. For example, the second rail 131 may have a circular arc shape and an angle may be marked on the side. Meanwhile, the second rail 131 is not necessarily limited to a circular arc shape, and may be curved to have an elliptical curvature depending on the type or method of treatment.

The second angle determining member 132 may determine the second angle by being connected to the first rail 121 and moving on the second rail 121 . The second angle determining member 132 is provided with a fixing screw so that the housing 11 can be fixed by tightening the screw to have a preset second angle.

Meanwhile, the first angle and the second angle may be defined in different planes. That is, since the direction in which the first rail 121 is curved and the direction in which the second rail 131 is curved are not parallel to each other, the angle of the housing 11 to which the object 2 is guided can be controlled in three dimensions. In a state where the guide device 1 grips the spine, when the guide device 1 is viewed from the opposite side (above) of the spine position, the first rail 121 and the second rail 131 may be orthogonal to each other, , It may be formed at an angle that is not parallel depending on the type or method of treatment.

The center adjusting unit 14 is connected to the second angle adjusting unit 13 to adjust the height of the housing 11 . For example, the central control unit 14 includes a first main member 141, a second main member 142, a first connecting member 143, a height adjusting member 144 and a second connecting member 145. can include

The first main member 141 may be connected to the gripping part 15 .

The second main member 142 may be disposed on one side of the first main member 141 in a separated state.

The first connecting member 143 may connect the first main member 141 and the second main member 142 .

The height adjusting member 144 may adjust the height of the second main member 142 relative to the first main member 141 . That is, the height adjusting member 144 can ultimately adjust the height of the housing 11 by varying the relative distance between the second main member 142 and the first main member 141 .

The second connecting member 145 extends through the second main member 142, and the second angle adjusting part 13 may be connected to both ends thereof, respectively. The second connecting member 145 can adjust the position of the second angle adjusting unit with respect to the center adjusting unit 14 by sliding with respect to the second main member 142 .

The gripping part 15 is disposed under the central control part 14 to grip the spine 3 . For example, the gripping portion may be formed in the form of a clip, and may be fixed by clamping the spine from both sides. The gripping part 15 may initially align the housing 11 by gripping the spinous process 31 of the spine 3 . For example, when the gripping part 15 is fixed to the spine by adding a part having a shape of a spinous process of the spine, an operation to be placed at the correct position can be accurately performed according to a plan.

4 is a plan view showing a guide device applied to the spine according to an embodiment, and FIG. 5 is a side view showing a guide device applied to the spine according to an embodiment.

Referring to FIGS. 4 and 5 , in a state in which the guide device 1 is applied to the spine, the housing is shown facing the pedicle so that the object 2 can be inserted into an appropriate position. For example, the gripping portion 15 may be formed to conform to the spinous process 31 of the spine 3, and the width of the gripping portion 15 may be similar to the width of the general spinous process 31, so The user can easily and intuitively know the location where the guide device 1 is to be fixed.

As described above, although the embodiments have been described with limited drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the described method, and/or components of the described structure, device, etc. may be combined or combined in a different form from the described method, or other components or equivalents may be used. Appropriate results can be achieved even if substituted or substituted by

Claims (10)

a housing capable of penetrating an object;
a first angle adjusting unit that is connected to one end of the housing and adjusts a first angle of the housing;
a second angle adjusting unit connected to the first angle adjusting unit to adjust a second angle of the housing;
a central adjusting unit connected to the second angle adjusting unit to adjust the height of the housing; and
A guide device including a gripping part disposed below the central control part to grip the spine.
According to claim 1,
The housing, the first angle adjusting portion and the second angle adjusting portion are formed in two, respectively, and the guide device, characterized in that disposed on both sides of the center adjusting portion.
According to claim 1,
The guide device, characterized in that the first angle and the second angle are defined in different planes.
According to claim 1,
The central control unit,
a first main member connected to the holding part;
a second main member disposed on one side of the first main member in a separated state;
a first connecting member connecting the first main member and the second main member;
a height adjusting member for adjusting a height of the second main member relative to the first main member; and
A guide device comprising a second connection member extending through the second main member and having a second angle adjusting unit connected to both ends thereof.
According to claim 4,
The second connecting member is
A guide device for adjusting the position of the second angle adjuster with respect to the center adjuster by sliding with respect to the second main member.
According to claim 1,
The holding part,
A guide device formed in a clip shape and fixed by clamping the spine from both sides.
According to claim 1,
The first angle adjusting unit,
A first rail curved in an arc shape; and
and a first angle determining member connected to the housing and moving on the first rail to determine the first angle.
According to claim 7,
The second angle adjusting unit,
a second rail connected to the center control unit and curved in an arc shape; and
and a second angle determining member connected to the first rail and moving on the second rail to determine the second angle.
According to claim 7,
the housing,
a long frame connected to the first angle determining member and moving integrally; and
A guide device comprising a hole penetrating the frame.
According to claim 9,
An upper end of the frame is connected to the first angle determining member, and a lower end of the frame has a smaller cross-sectional area as it goes downward.

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