KR101253663B1 - Rod holder for minimal invasive surgery - Google Patents

Abstract

PURPOSE: A rod holder for minimally invasive surgery for spine correction is provided to facilitate an operation with a rod by fixing a rod in a rotated state with an outer shaft. CONSTITUTION: A main shaft includes a rod connecting part(111) at an end part. A middle shaft penetrates the main shaft to be slidably inserted. The middle shaft comprises a fixing part which fixes a rod. An outer shaft(150) slidably penetrates the middle shaft for mounting. The outer shaft fixes or releases the rod.

Description

Rod holder for minimally invasive surgery

The present invention relates to a rod holder for a minimally invasive procedure for orthodontics for installing a rod connecting the pedicle screw and the adjacent pedicle screw to each other to correct the spine.

The spine is a part that supports the body, and usually consists of 24 bones, with a disk between the bones and the adjacent bones, and a nerve passing through the center of the bones.

These vertebrae not only support the body, but also protect all the internal organs and play an important role as the source from which the body can move.

However, if the spine is damaged or twisted due to artificial injury, degenerative or incorrect posture, the nerve passing through the spine is compressed, causing severe pain.

If the pain is mild, physical therapy is used. However, if the pain is severe, the fixation device to fix the pedicle should be inserted to correct the position of the spine or to compress the pressure so as not to press the nerve.

In general, vertebral correction uses a minimally invasive surgical technique for fastening pedicle screws to a plurality of pedicles, and combining the rods across the pedicle and adjacent pedicles to perform the correction of the spine.

Minimally invasive surgical techniques for vertebral correction can prevent the pedicle from compressing the nerves by correcting the vertebrae so that the rod opens between the squeezing pedicle and the adjacent pedicle.

On the other hand, when performing the minimally invasive surgical technique for chiropractic, the size of cutting the body part varies depending on the technology of installing the rod. Therefore, the development of technology to install the rod while minimizing the incision of the body part is actively progressing. It is becoming.

An example of such a technique is disclosed in "Road Perth Fender" of Korean Patent Publication No. 10-2007-0012706.

Conventional rod perspectiveers are surgical instruments for inserting a longitudinal spinal member into a top-loading spinal implant, comprising: a holder assembly; Discharge assembly; And an actuating member that actuates an actuating member as an actuating member operatively associated with the holder assembly and the ejecting assembly such that the actuating member moves the holder assembly relative to the ejecting assembly, wherein the ejecting assembly is a tubular member and a push member. Wherein the tubular member has a size and arrangement to slide into the holder assembly and the push member is configured to have a size and arrangement to slide around at least a portion of the holder assembly.

In this configuration, the rod perspider was able to install the rod by inserting the rod vertically into the body to minimize the incision of the body part.

However, the conventional rod perth fender has a problem in that it is difficult to firmly fix the rod in a vertical state so that when the rod is inserted into the body, the rod rotates and the rod is seated on the pedicle screw.

In addition, there was a problem that the body tissue is stuck in the operating part is difficult to clean.

The present invention is to solve the problems as described above, the problem to be solved by the present invention is to hold the rod firmly, and to insert the rod by rotating the rod at an arbitrary angle according to the treatment site of the rod It is to provide a rod holder for the minimally invasive procedure for chiropractic that can be easily installed and easy to clean after the procedure.

Rod holder for the minimally invasive procedure for chiropractic in accordance with an embodiment of the present invention for achieving the above object in a chiropractic device comprising a rod connecting the pedicle screw coupled to the pedicle and adjacent pedicle screw nails to each other A rod holder for a minimally invasive procedure for orthodontic treatment for installing the rod, comprising: a main shaft having a rod coupling portion at an end thereof detachably coupled by an elastic force, and the main shaft such that the rod coupling portion emerges from the end thereof. Is inserted into the slide to be slidably moved, the middle shaft including a fixing part fixed to the rod and positioned at an end portion at which the rod coupling part emerges, and installed through the middle shaft so as to be slidably movable. According to the fixing part by pressing or releasing the pressure It includes an outer shaft for releasing the static or fixed.

The middle shaft is rotated about the middle shaft at the opposite end couple of the middle shaft in which the rod coupling portion emerges, and includes a knob formed with a thread, the main shaft is screwed together with the thread formed in the knob Including the main screw portion, the main shaft can be slid from the middle shaft by the rotation of the knob.

The knob may further include a guide part inserted into the main shaft to guide the movement of the main shaft.

The outer shaft includes a lever to which the end of the outer shaft is rotatably coupled, the middle shaft includes a handle fixed by a hinge pin and a central portion of the lever, the lever when the lever rotates in the handle The outer shaft can slide in the middle shaft by the principle of.

The fixing part may include an elastic part formed by cutting a part of the middle shaft to generate an elastic force, and a pressing pin provided on the elastic part to press the rod.

The main shaft may have a guide groove for inserting the pressing pin to prevent rotation of the main shaft and guide the movement of the main shaft.

The rod coupling portion may include a cutting groove for cutting a portion of the main shaft so that an elastic force is generated at a portion at which the rod is coupled.

A support ring may be installed between the middle shaft and the outer shaft to prevent shaking of the middle shaft in the outer shaft.

The main shaft, the middle shaft, and the outer shaft may be formed with a foreign material discharge hole that is formed to penetrate easily.

According to the present invention, since the main shaft and the middle shaft are screwed together by the knob, the rod can be firmly and easily gripped, and the rod can be fixed in a state in which the rod is rotated at an arbitrary angle by the outer shaft. The procedure can be easily performed.

In addition, foreign matter discharge hole is formed in each configuration can be easily performed cleaning.

1 is a perspective view of a rod holder for a minimally invasive procedure for chiropractic according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the rod holder for the chiropractic minimally invasive procedure according to an embodiment of the present invention.
Figure 3 is a view showing the main shaft constituting the rod holder for the minimally invasive procedure for chiropractic according to an embodiment of the present invention, (a) is a perspective view from the bottom, (b) is a front view, (c) Is a side cross-sectional view.
Figure 4 is a view showing a middle shaft constituting the rod holder for the minimally invasive procedure for chiropractic according to an embodiment of the present invention, (a) is a perspective view from the bottom, (b) is a front view, (c) Is a side cross-sectional view.
Figure 5 is a view showing a knob constituting a rod holder for a minimally invasive procedure for chiropractic according to an embodiment of the present invention, (a) is a perspective view from the bottom, (b) is a front view.
6 is a view showing the outer shaft constituting the rod holder for the minimally invasive procedure for chiropractic according to an embodiment of the present invention, (a) is a perspective view from the bottom, (b) is a front view, (c) Is a side cross-sectional view.
7 is a view showing a state for fitting the rod to the rod holder for the minimally invasive procedure for chiropractic according to an embodiment of the present invention.
8 is a view showing a state after the rod is inserted into the rod holder for the minimally invasive procedure for chiropractic according to an embodiment of the present invention.
9 is an enlarged cross-sectional view schematically showing a portion of the knob of the rod holder coupled to the minimally invasive procedure for chiropractic according to the embodiment of the present invention.
10 is an enlarged cross-sectional view schematically showing the operating state of the outer shaft in the rod holder for the minimally invasive procedure for chiropractic according to an embodiment of the present invention, (a) is the outer shaft is raised by the lever, (b) is a view showing a state in which the outer shaft is lowered by the lever.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

First, the rod holder 100 for the minimally invasive procedure for chiropractic according to an embodiment of the present invention is connected to the pedicle screw installed in the pedicle and adjacent pedicle to fix the spine, the rod 200 is fixed to each other As a device for installation, it is used in the minimally invasive surgical technique, which is one of spinal surgery techniques.

Here, the rod 200 is formed in a bar shape bent to have an arbitrary curvature radius, one end of the rod 200 is pointed, and the other end of the rod 200, the rod pin 210 protruding to both sides is It may be configured in a form provided (see FIG. 7).

As shown in Figures 1, 2, and 3 (a) to (c), the rod holder 100 for the minimally invasive procedure for orthodontic treatment according to an embodiment of the present invention is the main shaft 110 It may include.

The main shaft 110 may be formed in the shape of a rod through the center, and one end of the main shaft 110 may be provided with a rod coupling portion 111 to which the rod 200 is detachably coupled by an elastic force. have.

The rod coupling part 111 is formed in such a way that the pin holes 112 having the lower portion open to face each other so that the rod pins 210 protruding from both sides of the rod 200 can be detachably coupled by elastic force. It may be formed through the end portion of the shaft 110.

On the other hand, the pin hole 112, when the rod pin 210 is fitted in the pin hole 112, the lower portion of the open to prevent the rod pin 210 is easily separated than the diameter of the rod pin 210 It may be formed to have a small width.

In addition, the rod coupling portion 111 may include a cutting groove 113. The cutting groove 113 is so that when the rod pin 210 is inserted into the pin hole 112, the open lower end of the pin hole 112 having a width smaller than the diameter of the rod pin 210 to be opened by the elastic force An elastic force may be applied to the rod coupling part 111.

In addition, the cutting groove 113 may be formed to cut a part of the main shaft 110 in the longitudinal direction of the main shaft 110 in the pin hole 112.

Meanwhile, the guide groove 114 may be formed in the main shaft 110. The guide groove 114 may be inserted into the pressing pin 133 of the middle shaft 130 to be described below to guide the movement of the middle shaft 130.

In addition, the guide groove 114 may be formed in the main shaft 110 between the pin hole 112 and the incision groove 113, the guide groove 114, the main shaft facing each other (like the pin hole 112) ( It may be formed to penetrate the surface of 110. At this time, the pin hole 112, the guide groove 114, the cutting groove 113 is of course configured to communicate with each other.

In addition, the guide groove 114 may be formed in the shape of a long long hole in the longitudinal direction of the main shaft (110).

The main shaft 110 may include a main screw unit 115. The main screw portion 115 may be provided at the other end portion of the main shaft 110 in the opposite direction of the rod coupling portion 111, that is, the other end of the main shaft 110, the main screw portion 115 is the main shaft ( It may be configured in the form that the thread is formed on the inner circumference of 110.

Here, the diameter of the main screw portion 115 may be formed to have a larger diameter than the inner diameter of the main shaft 110, the main screw portion 115 is configured in the form of forming a screw thread in a portion where the diameter is large Can be.

In addition, the main shaft 110 may include a handle 120. The handle 120 is a part held by the user, and may be coupled to the main shaft 110 in a form protruding laterally of the main shaft 110 from the top of the main shaft 110.

On the other hand, the handle 120 may be formed in the center penetrated so that the user's hand can be inserted, the main shaft 110 and the handle 120 is inclined at an arbitrary angle (to the top of the handle 120) Increasingly, the main shaft 110 and the handle 120 may be protruded to the outside of the main shaft 110 in the form of an inclined form that gradually opens.

In addition, the handle 120 may include a hinge hole 121 through which a hinge pin HP coupled to the lever 160 of the outer shaft 150 to be described below is installed.

In addition, the middle portion of the main shaft 110 may be formed with a foreign matter discharge hole 119 communicating with the penetrated interior of the main shaft 110 to facilitate the discharge of foreign matter during cleaning.

As shown in Figures 1, 2 and 4 (a) to (c), the rod holder 100 for the minimally invasive procedure for orthodontic treatment according to an embodiment of the present invention includes a middle shaft 130 can do.

The middle shaft 130 is installed in such a way that the main shaft 110 penetrates the inside of the middle shaft 130, and when the main shaft 110 slides on the middle shaft 130, the rod of the main shaft 110 is moved. By engaging the coupling portion 111 at one end of the middle shaft 130, the elastic force of the rod coupling portion 111 can be suppressed to prevent the rod 200 from being easily separated from the rod coupling portion 111.

That is, when the main shaft 110 is sliding in the middle shaft 130 so that the rod coupling portion 111 protrudes out of the middle shaft 130, the rod coupling portion 111 is formed in the incision groove 113. As a result, the rod 200 can be easily detached by the elastic force.

However, when the rod coupling portion 111 is inserted into the middle shaft 130, the elastic force is suppressed so that the rod coupling portion 111 can no longer be opened in the middle shaft 130, so that the rod 200 ) Can be easily separated from the rod coupling portion 111.

On the other hand, the middle shaft 130 may be formed in the shape of a rod through the center so that the main shaft 110 is inserted and sliding.

The middle shaft 130 may include a fixing part 134. The fixing part may be provided at one end of the main shaft 110 on the middle shaft 130 to fix the rod 200 coupled to the rod coupling part 111.

On the other hand, the fixing part 134 may include an elastic portion 131 and the pressing pin 133. The elastic part 131 may be provided in the middle shaft 130 so that an elastic force may be generated inside the middle shaft 130 by cutting a portion of the middle shaft 130 in a “U” shape.

At this time, the elastic portion 131 may be provided with a pair to face each other in the middle shaft 130, the elastic portion 131 is a portion where the rod coupling portion 111 is located in the middle shaft 130, more specifically The main shaft 110 may be provided at a portion of the middle shaft 130 corresponding to the position of the guide groove 114.

In addition, the pressing pin 133 may be formed in the shape of a pin, and provided in the elastic part 131 to be inserted into the guide groove 114 of the main shaft 110 inserted into the middle shaft 130. Can be.

The pressing pin 133 configured as described above is inserted into the guide groove 114 of the main shaft 110 so that the main shaft 110 inserted into the middle shaft 130 slides on the middle shaft 130. The movement of the shaft 110 may be guided, and the main shaft 110 may be prevented from rotating inside the middle shaft 130.

In addition, the pressure pin 133 is a rod coupling portion 111 when the rod coupling portion 111 is inserted into the middle shaft 130 in accordance with the sliding movement of the main shaft 110, by pressing the peripheral portion of the rod pin (210) By fixing the 200, the rod 200 coupled to the rod coupling part 111 may be prevented from rotating about the rod pin 210.

Meanwhile, the middle shaft 130 has a handle insertion hole 137 penetrating through the middle shaft 130 so that the handle 120 can be coupled to the main shaft 110 inserted into the middle shaft 130 from the outside. Can be formed.

As shown in FIGS. 5A, 5B, and 9, the middle shaft 130 may include a knob 140. The knob 140 may slide the main shaft 110 inserted into the middle shaft 130 by screwing.

On the other hand, the knob 140 may be provided at the other end of the opposite direction, that is, the middle shaft 130, the rod coupling portion 111 in the middle shaft 130, the center shaft 130, the center It may be rotatably coupled to the middle shaft 130.

In addition, the knob 140 may be exposed to the outside at the top of the middle shaft 130 so that the user can directly operate the knob 140.

The knob 140 may include a grip portion 141, a knob screw portion 143, and a guide portion 145.

The gripper 141 is a part held by the user, and may be formed to have a larger circumference than the circumference of the middle shaft 130, and the circumference of the gripper 141 is uneven to prevent slipping of the gripped user. It may be formed in a shape.

The knob screw portion 143 may be provided at a lower portion of the grip portion 141, and a screw thread may be formed on an outer surface thereof to be screwed together with the screw thread of the main screw portion 115 formed on the main shaft 110.

Guide portion 145 may be provided in the form of a rod extending to the lower portion of the knob screw portion 143, the guide portion 145 is inserted into the center portion of the main shaft 110 through the main shaft 110 To support the inside of the middle shaft 130, and when the main shaft 110 slides inside the middle shaft 130, the movement of the main shaft 110 may be guided.

In addition, a separation prevention groove 147 formed along the circumference of the knob 140 may be formed between the grip part 141 and the knob screw unit 143, and the middle shaft 130 may be formed in the separation prevention groove 147. The fixing pin 149 penetrated in the lateral direction of the can be inserted to prevent the knob 140 from being separated from the middle shaft 130.

At this time, the fixing pin coupling groove 135 into which the fixing pin 149 is inserted may be formed on the upper portion of the middle shaft 130.

Since the knob 140 configured as described above is screwed together with the main screw portion 115 and the knob screw portion 143 of the main shaft 110, according to the rotation direction of the knob 140 in the middle shaft 130, the middle shaft By sliding the main shaft 110 to the upper or lower at 130, it is possible to easily mount the rod coupling portion 111 of the main shaft 110 in the middle shaft 130.

Meanwhile, a stop screwing groove 117 penetrating the lateral direction of the main shaft 110 may be formed at a portion in which the guide part 145 of the knob 140 is inserted in the main shaft 110.

Then, a stop screw (not shown) is fastened to the stop screw fastening groove 117 to support the stop screw of the guide part 145 of the knob 140, so that the stop screw supports the guide part 145 according to the supporting force. Rotating force capable of rotating the knob 140 may be adjusted.

In addition, a foreign substance discharge hole 139 may be formed in the middle portion of the middle shaft 130 to communicate with a penetrated interior of the main shaft 110 to facilitate discharge of foreign substances.

As shown in Figures 1, 2 and 6 (a) to (c), the rod holder 100 for the minimally invasive procedure for orthodontic treatment according to an embodiment of the present invention includes an outer shaft 150 can do.

The outer shaft 150 is installed in the form in which the middle shaft 130 penetrates the inside of the outer shaft 150, and the elasticity of the middle shaft 130 as the outer shaft 150 slides in the middle shaft 130 is moved. The rotation of the rod pin 210 in the form of pressing or releasing the pressurizing part 131 may be fixed or released.

On the other hand, the outer shaft 150 may be formed in a shape through the inside, the inner portion of the lower end of the outer shaft 150 in which the elastic portion 131 of the middle shaft 130 corresponding to the position in the outer shaft 150 The pressing protrusion 151 may be formed to protrude gradually inwardly toward the upper portion of the outer shaft 150.

When the outer shaft 150 moves downward from the middle shaft 130, the pressing protrusion 151 presses the elastic portion 131 of the middle shaft 130 to provide the pressing pin 133 provided in the elastic portion 131. The rod 200 is pressed to fix the rotation of the rod 200.

On the other hand, when the outer shaft 150 is moved upward from the middle shaft 130, the pressing force that presses the elastic portion 131 of the middle shaft 130 may be released to release the rod 200 having the fixed rotation. .

The outer shaft 150 may include a lever 160. The lever 160 may move the outer shaft 150 upward or downward from the middle shaft 130 coupled with the main shaft 110 using the lever 120 together with the handle 120.

On the other hand, the lever 160 may be coupled by a hinge pin (HP) so that one end of the lever 160 can be rotated up and down to the outer shaft 150, the hinge hole 161 in the middle portion of the lever 160 ) Is formed so that the hinge pin (HP) penetrates the hinge hole (121) of the handle 120 together in the handle 120 may be coupled so that the lever 160 rotates around the hinge pin (HP). (Unexplained reference numeral 153 is a hinge hole into which a hinge pin HP penetrating one end of the lever 160 is inserted).

.

In this case, the other end of the lever 160 may be positioned at the lower end of the handle 120 so as to operate the lever 160 in a state in which the user grips the handle 120.

And, the outer shaft 150 is inserted into the handle 120 coupled to the main shaft 110 at the same time the outer shaft (150) when the outer shaft 150 is sliding in the outer shaft so that the handle 120 does not interfere with the outer shaft ( The handle groove 155 may be formed by cutting 150.

The outer shaft 150 configured as described above, as shown in (a) and (b) of FIG. 10, when the lever 160 is rotated upward in the direction in which the handle 120 is positioned, the lever (around the hinge pin) The rod 200 may be fixed by rotating the 160 to press the elastic part 131 by moving the outer shaft 150 downward from the middle shaft 130 to which the main shaft 110 is coupled (FIG. 10). (b)).

On the contrary, when the lever 160 is rotated downward in the opposite direction in which the handle 120 is positioned, the lever 160 rotates around the hinge pin so that the outer shaft (from the middle shaft 130 to which the main shaft 110 is coupled) is rotated. 150 is moved upward to release the pressure of the elastic portion 131, thereby releasing the fixing of the rod 200 (see Fig. 10 (a)).

In addition, a foreign substance discharge hole 159 may be formed in the middle portion of the outer shaft 150 to communicate with a penetrated interior of the outer shaft 150 to facilitate the discharge of the foreign substance.

1 and 9, the rod holder 100 for the minimally invasive procedure for chiropractic according to an embodiment of the present invention may include a support ring 170.

The support ring 170 is inserted between the outer shaft 150 and the middle shaft 130 to prevent the middle shaft 130 inserted into the outer shaft 150 from shaking inside the outer shaft 150. can do.

Meanwhile, the support ring 170 may be formed in a ring shape, and a plurality of support rings 170 may be installed to be spaced apart from each other between the outer shaft 150 and the middle shaft 130.

The operation and effect between the above-described respective constitutions will be described.

Rod holder 100 for the minimally invasive procedure for chiropractic according to an embodiment of the present invention, the knob 140 is seated on the upper portion of the middle shaft 130, the knob 140 is the fixing pin 149 middle It penetrates the side surface of the shaft 130 and is rotatably coupled to the middle shaft 130 in the form of being inserted into the release preventing groove 147 of the knob 140.

The main shaft 110 is inserted into the middle shaft 130 such that the rod coupling portion 111 is positioned in the opposite direction in which the knob 140 is positioned, and the main screw portion 115 of the main shaft 110 is inserted into the middle shaft 130. And knob screw portion 143 of knob 140 are coupled to each other in a form of screwing together.

At this time, the pressing pin 133 coupled to the elastic portion 131 of the middle shaft 130 is inserted into the guide groove 114 of the main shaft 110 to guide the movement of the main shaft 110 and at the same time the main shaft ( To prevent the rotation of the 110).

Then, the handle 120 is coupled to the upper portion of the main shaft 110 to protrude outwards through the handle insertion hole 137 of the middle shaft 130.

Meanwhile, the lever 160 is rotatably coupled to the outer shaft 150 by a hinge pin HP, and the middle shaft 130 having the main shaft 110 coupled thereto is inserted into the outer shaft 150. The lever 160 and the handle 120 are coupled to each other in such a way that the hinge pins penetrate the hinge holes 121 and 161 formed therein.

In addition, the support ring 170 is installed between the outer shaft 150 and the middle shaft 130 to prevent the middle shaft 130 from shaking in the outer shaft 150.

As shown in FIG. 7, the rod holder 100 for the minimally invasive procedure for chiropractic configured as described above rotates the knob 140 provided in the middle shaft 130 and the main shaft 130 in the middle shaft 130. The rod coupling part 111 of the 110 protrudes, and the rod pin 210 is fitted into the pin hole 112 of the protruding rod coupling part 111 to couple the rod 200 to the main shaft 110.

At this time, since the main shaft 110 is screwed with the knob 140, the main shaft 110 slides upward or downward from the middle shaft 130 according to the rotation of the knob 140.

And, as shown in Figure 8, the rod coupling portion 111 protruding from the middle shaft 130 is inserted into the middle shaft 130, the rod coupling so that the rod 200 is not separated from the pin hole 112 The knob 111 rotates the knob 140 in the opposite direction from the middle shaft 130.

Then, the end of the rod 200 is rotated by the rod 200 at any angle that is easy to be inserted into the body, and rotates the lever 160 provided in the handle 120 in the direction in which the handle 120 is located. Let's do it.

At this time, when the lever 160 is rotated upward in the direction in which the handle 120 is located, the middle shaft 130 and the main shaft 110 are screwed by the knob 140, so that the outer shaft 150 is relatively The sliding shaft is moved to the lower portion of the middle shaft 130, the pressing projection 151 of the outer shaft 150 which is slidingly pushes the elastic portion 131.

In addition, the elastic part 131 pressurized by the pressing protrusion 151 is provided with a pressing pin 133, the pressing pin 133 pressurizes the rod 200, the rod 200 to the rod pin 210 It can be fixed so that it can no longer rotate while being rotated at an angle to the center.

The rod 200 is inserted into the body in such a state, and when the rod 200 is seated on the pedicle screw, the lever 120 is rotated on the adjacent pedicle screw so that the rod 200 can be rotated. The fixed rotation of the rod 200 is released in the form of rotating the 160 downward.

At this time, when the lever 160 is rotated downward from the handle 120, the outer shaft 150 is slid upward from the middle shaft 130 to pressurize the elastic portion 131 pressed by the pressing protrusion 151. By releasing, the rod 200 is in a rotatable state.

When the rod 200 is installed in the pedicle screw, the rod 200 is rotated so that the rod 200 can be detached from the rod coupling portion 111 to middle the rod coupling portion 111 of the main shaft 110. Protruding from the shaft 130, the rod 200 in the form of lifting the rod holder 100 for the minimally invasive procedure for chiropractic to remove the rod 200 from the rod holder 100 for the minimally invasive procedure for chiropractic The installation of the furnace rod 200 is completed.

Therefore, the rod holder 100 for the minimally invasive procedure for chiropractic according to an embodiment of the present invention is easy to remove the rod 200, and firmly grips the rod 200 during minimally invasive surgery for spinal correction Medical accident may be prevented from occurring due to the detachment of the rod 200.

In addition, the rod 200 may be fixed at an angle rotated to perform a chiropractic procedure, and foreign matter discharge holes 119, 139, 159 may be formed in each shaft 110, 130, and 150 to facilitate cleaning.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but variations and modifications may be made without departing from the scope of the present invention. Will be possible.

100: rod holder for chiropractic minimally invasive procedure 110: main shaft
111: rod coupling portion 112: pin ball
113: incision groove 114: guide groove
115: main screw part 117: set screw tightening groove
119, 139, 159: foreign substance discharge hole 120: handle
121,153,161: Hinge ball 130: Middle shaft
131: elastic portion 133: pressure pin
134: fixing part 135: fixing pin coupling groove
137: handle insertion hole 140: knob
141: grip portion 143: knob screw portion
145: guide portion 147: departure prevention groove
149: fixing pin 150: outer shaft
151: pressure projection 155: handle groove
160: lever 170: support ring
200: load 210: load pin
HP: hinge pin

Claims (9)

A rod holder for chiropractic minimally invasive procedure for installing the rod in a chiropractic device comprising a rod connecting the pedicle screw coupled to the pedicle and an adjacent pedicle screw.
The main shaft is provided at the end of the rod coupling portion is detachably coupled by the elastic force,
A middle shaft including a fixing part fixed to the rod to be slidably inserted through the main shaft so that the rod coupling part protrudes from an end thereof and positioned at an end portion at which the rod coupling part protrudes;
Minimally invasive for chiropractic, characterized in that the middle shaft is installed through the sliding movement, and the outer shaft for fixing or releasing the rod by pressing or releasing the fixing portion according to the sliding movement. Rod holder for the procedure. The method of claim 1,
The middle shaft
Rotation about the middle shaft at the opposite end couple of the middle shaft in which the rod coupling portion emerge, and includes a threaded knob,
The main shaft
Including a screw thread formed in the knob and the main screw portion screwed to each other,
The rod holder for the minimally invasive procedure for orthodontic treatment, characterized in that the main shaft is slid and moved in the middle shaft by the rotation of the knob. The method of claim 2,
The knob
And a guide part inserted into the main shaft to guide movement of the main shaft. The method of claim 1,
The outer shaft is
An end of the outer shaft includes a lever rotatably coupled thereto,
The middle shaft
Including a handle fixed by the central portion of the lever and a hinge pin,
Rod holder for the minimally invasive surgery for orthodontic treatment, characterized in that the outer shaft is sliding in the middle shaft by the principle of the lever when the lever is rotated in the handle. The method of claim 1,
The fixed portion
An elastic portion formed by cutting a portion of the middle shaft to generate an elastic force, and
The rod holder for the minimally invasive procedure for correcting the spine, characterized in that it comprises a pressing pin provided on the elastic portion to press the rod. The method of claim 5,
The main shaft
The push pin is inserted into the rod holder for the minimally invasive procedure for orthodontic treatment, characterized in that the guide groove for preventing the rotation of the main shaft at the same time to guide the movement of the main shaft is formed. The method of claim 1,
The rod coupling portion
Rod holder for a minimally invasive procedure for orthodontic treatment, characterized in that it comprises an incision groove for cutting a portion of the main shaft so that the elastic force is generated in the portion to which the rod is coupled. The method of claim 1,
Between the middle shaft and the outer shaft
Rod holder for the minimally invasive procedure for orthodontics, characterized in that the support ring is installed in the outer shaft to prevent the shaking of the middle shaft. The method of claim 1,
The main shaft, the middle shaft, and the outer shaft
Rod holder for the minimally invasive procedure for orthodontics, characterized in that the foreign matter discharge hole is formed to be penetrated to facilitate the cleaning.

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