WO2007055441A1

WO2007055441A1 - Surgical device for spiral vertebral column

Info

Publication number: WO2007055441A1
Application number: PCT/KR2006/000075
Authority: WO
Inventors: Youn Moon Jung; Kang Taek Lim; Jae Seok Park
Original assignee: Youn Moon Jung; Kang Taek Lim; Jae Seok Park
Priority date: 2005-11-14
Filing date: 2006-01-07
Publication date: 2007-05-18
Also published as: KR200409151Y1

Abstract

A spiral surgical appliance for backbone disease is disclosed. The surgical appliance includes a guide needle formed with a screw part on the lower circumference or the entire surface of the circumference thereof and a through hole at the axis center thereof, the guide needle positioned at a right angle to a supporting device, a handle adapted to be coupled to the supporting device, and a drill shaft formed with a drill portion on the circumference thereof to penetrate the through hole of the guide needle, the drill shaft formed at a right angle to the supporting device. The supporting and the handle are formed with a coupling protrusion on any one of the supporting device and the handle, and a coupling hole for receiving the coupling protrusion of the handle or the supporting device so that the supporting device and the handle are coupled to and fixed to each other. The drill shaft is formed on the upper side thereof with a fixing pin having a fixing recess formed at a side portion thereof in a body, the handle is formed at a predetermined portion thereof with a fixing hole that is attachably and detachably coupled to the fixing pin, and the fixing hole is elastically provided at a side thereof with a switch having a large sized diameter portion and a small sized diameter portion at a predetermined portion thereof, which is penetrated into the fixing hole at a right angle to the fixing hole so that the drill shaft and the handle are fixed to each other when the fixing recess is positioned at the large sized diameter portion and separated from each other when the fixing recess is positioned at the small sized diameter portion.

Description

Description SURGICAL DEVICE FOR SPIRAL VERTEBRAL COLUMN

Technical Field

[1] The present invention relates to a surgical appliance for backbone disease, and more particularly to a surgical appliance for implanting bone reinforcement into the backbone that is compression-fractured by osteoporosis or a traumatic injury to strongly reinforce the tendered backbone, by which a small hole is bored into the back without incising diseased parts under local anesthesia, not general anesthesia, thereby fast and simply completing the entire surgery, unlike a conventional surgery incising largely the back and fixing a screw spike. Background Art

[2] Generally, the aged person or women after giving a birth to a child may get diseases by osteoporosis or compression fractures caused by a traumatic injury, in a certain case, even resulting in deformation of the human body caused by the deformation of the backbones thereby compressing the internal organs accompanying severe pains. In addition, the progress of symptoms may cause entirely forward bending the back, or the progress of compression-fractured backbone and a nerve compression may result in a lesion such as the lower limbs paralysis.

[3] In the case of the compression fractures caused by osteoporosis having such many problems, a bone reinforcement as a transplantation material securing the stability of the backbone is directly implanted into the corresponding backbone in which bone density was remarkably decreased thereby reinforcing the bone density of the corresponding backbone. In the case of the compression fractures caused by a traumatic injury, a backbone surgery has been performed to strongly reinforce the fractured and tendered backbone. The conventional backbone surgery has been performed by boring an implantation hole into the corresponding backbone selected by various tests with a hammer striking a keen awl type tool while the corresponding backbone is contacted with the keen awl to thereafter implant bone reinforcement as a transplantation material through the implantation hole. However the patient must endure a severe pain during the formation of the implantation hole. In addition since it is impossible to form an accurate implantation hole due to the primitive surgery method and accordingly the bone reinforcement cannot be accurately implanted into the corresponding backbone in a post work, or a sufficient amount of the bone reinforcement cannot be implanted into the corresponding backbone, an outward flow of the implanted bone reinforcement may be occurred thereby causing insufficient remedial value, and at the same time the safety for the backbone surgery cannot be secured because of involvement of the surgery danger, so that a surgeon has a sever mental burden thereby causing the possibility of failure during the operation.

[4] To solve the above problems, the present inventor proposed a surgical appliance for a backbone disease having a plurality of surgery tubes and surgery shafts for boring a bone reinforcement implantation hole into the corresponding backbone to implant a bone reinforcement through the hole, by which a surgeon can safely accurately treat a backbone disease without fear or horror and free from pains caused by the external impact and severe danger occurring during the operation (see Korean utility model registration No. 0361374).

[5] However, in the above-mentioned configuration, there is a problem that guide awl, drill shaft, and push shaft are formed in a body with handle integrated therewith in each of the elements, thereby causing high cost and complexity in manufacturing in addition to increase in the volume of the surgery appliance thus being inconvenient to keep the large sized appliance. Furthermore, since the conventional surgery appliance has a configuration on which each of the guide awl, drill shaft and push shaft rotate at an angle of 45 degree relative to guide needles to thereby be assembled and released, there are problems that surgery procedure is very complex and a surgeon must fully know the rotating direction for assembling and releasing, thus the backbone surgery cannot be rapidly and simply performed. Disclosure of Invention

Technical Problem

[6] Therefore, the present invention has been made to solve the above-mentioned problems occurring in the conventional surgery, and an object of the present invention is to provide a surgical appliance for a backbone disease having a plurality of surgery tubes and surgery shafts for boring a bone reinforcement implantation hole into the corresponding backbone to easily implant a bone reinforcement through the hole while using the appliance in order, by which a surgeon can safely accurately treat a backbone disease without fear or horror and a patient is free from pains caused by the external impact and severe danger occurring during the operation, and at the same time resulting in decrease in manufacturing cost.

[7] It is another object of the present invention to provide a surgical appliance for a backbone disease in which guide awls, drill shafts and push shafts each are replaced with each other relative to one handle while various tools are used during the operation, so that the operation may be easily performed and the operation time may be reduced. Technical Solution

[8] In order to accomplish the above-mentioned objects, according to one aspect of the present invention, there is provided a surgical appliance for a backbone disease including a guide needle formed with a screw part on the lower circumference or the entire surface of the circumference thereof and a through hole at the axis center thereof, the guide needle positioned at a right angle to a supporting device, a handle adapted to be coupled to the supporting device, and a drill shaft formed with a drill portion on the circumference thereof to penetrate the through hole of the guide needle, the drill shaft formed at a right angle to the supporting device. The supporting and the handle are formed with a coupling protrusion on any one of the supporting device and the handle, and a coupling hole for receiving the coupling protrusion of the handle or the supporting device so that the supporting device and the handle are coupled to and fixed to each other. The drill shaft is formed on the upper side thereof with a fixing pin having a fixing recess formed at a side portion thereof in a body, and the handle is formed at a predetermined portion thereof with a fixing hole that is attachably and detachably coupled to the fixing pin, and the fixing hole is elastically provided at a side thereof with a switch having a large sized diameter portion and a small sized diameter portion at a predetermined portion thereof, which is penetrated into the fixing hole at a right angle to the fixing hole so that the drill shaft and the handle are fixed to each other when the fixing recess is positioned at the large sized diameter portion and separated from each other when the fix recess is positioned at a small sized diameter portion. Brief Description of the Drawings

[9] The above objects, other features and advantages of the present invention will become more apparent by describing the preferred embodiments thereof with reference to the accompanying drawings, in which:

[10] FIG. 1 is a perspective view showing whole structural devices of the surgical appliance for backbone disease according to an embodiment of the present invention;

[11] FIG. 2 is a cross-sectional plan view and a cross-sectional side view showing an assembled state of main members according to the embodiment of the present invention;

[12] FIG. 3 is a cross-sectional plan view and a cross-sectional side view showing an assembled state of main members according to the embodiment of the present invention;

[13] FIG. 4 is a cross-sectional plan view showing an assembled state of a handle and a supporting device according to an exemplary embodiment of the present invention;

[14] FIGS. 5 to 8 are process diagrams illustrating surgical processes using in order the backbone disease surgery appliance according to an exemplary embodiment of the present invention; [15] FIG. 9 is a perspective view showing whole structural devices of the surgical appliance for backbone disease according to another exemplary embodiment of the present invention;

[16] FIGS. 10 and 11 are process diagrams showing surgical processes using the surgical appliance according to another exemplary embodiment of the present invention; and

[17] FIG. 12 is a front and bottom view showing a drill portion of a drill shaft of the surgical appliance according to an exemplary embodiment of the present invention. Best Mode for Carrying Out the Invention

[18] Hereafter, a surgical appliance for backbone disease according to an exemplary embodiment of the present invention will be explained in detail with reference to the accompanying drawings.

[19] FIG. 1 is a perspective view showing whole structural devices of the surgical appliance for backbone disease according to an embodiment of the present invention, FIGS. 2 and 3 are a cross-sectional plan view and a cross-sectional side view showing assembled states of main devices according to the embodiment of the present invention, and FIG. 4 is a cross-sectional plan view showing an assembled state of a handle and a supporting device according to an exemplary embodiment of the present invention.

[20] Referring to FIG. 1, the surgical appliance includes a supporting device 10 formed with a through hole 13 at the center of the axis thereof to be assembled in a body with a guide needle 11 formed with screw part 12 on the lower circumference or the entire circumference thereof, a handle 20 adapted to be assembled with the supporting device 10 and formed with a fixing hole 22 at a predetermined portion, a pipe 50 formed with an implantation hole 51 for receiving a bone reinforcement at the axis center thereof, a drill shaft 40 formed at the upper portion thereof with a fixing pin 41 to be inserted into the fixing hole 22 and formed at the lower circumference surface or the entire circumference surface thereof with a drill portion 43 so that the drill shaft 40 may be inserted into the through hole 13, and a push shaft 60 to be inserted into the implantation hole 51.

[21] Herein, the drill shaft 40 and the pipe 50 may be formed at the upper portions thereof with marks 44 and 52 on a scale to indicate the surgical depth for a surgeon. In addition, the drill shaft 40 and push shaft 60 are formed at the upper portions thereof with fixing pins 31, 41, 61 to be selectively assembled with and released from the fixing hole 22 of the handle 20, as shown in FIGS. 2 and 3.

[22] FIG. 2 shows states that the fixing pins 41 and 61 formed at the upper portions of the drill shaft 40 and push shaft 60 may be inserted into and released from the fixing hole 22, and FIG. 3 shows a state that each of the fixing pins 41 and 61 are fixed to the fixing hole 22 thus not being released.

[23] In order the fixing pins to be assembled with and released from the fixing hole 22, the fixing hole 22 is provided at a portion thereof with a switch 23 that is shaped at a right angle to the direction of the fixing hole 22 and that is elastically movable forward and backward by a spring, and each of the fixing pins 41 and 61 is provided at one side portion or both side portions thereof with semicircle shaped fixing recesses 42 and 62, respectively.

[24] In other words, as shown in FIG. 2, the switch 23 is elastically supported by the spring 26 in a hole bored at a right angle to the direction of the fixing hole 22 and has a small sized diameter portion 25 and large sized diameter portion 24 therein.

[25] Accordingly, as shown in the upper drawing of FIG. 2, when a surgeon presses the switch 23 (see the arrow direction), the spring 26 is compressed and at the same time the small sized diameter portion 25 is secured at a side portion of the fixing hole 22. At this state, the fixing pin 41 may be free inserted into and released from the fixing hole 22.

[26] Next, referring to FIG. 3, when the switch 23 is released with the fixing pin 41 fully inserted into the fixing hole 22, the switch 23 is returned to the original position. At this time, the large sized diameter portion 24 is positioned at a side of the fixing hole 22 and at the same time meets the fixing recess 42 formed at a side of the fixing pin 41, thus the fixing pin 41 cannot be out of the fixing hole 22.

[27] Herein, it is preferable that the fixing recess 42 is formed at both sides of the fixing pin 41 so that the fixing pin 41 may be fully fixed, even though the fixing pin 41 is inserted in any direction in the fixing hole 22 because the switch 23 is formed only at one side of the fixing hole 22.

[28] FIGS. 2 and 3 illustrate just the fixing pin 41 formed on the drill shaft 40 as an exemplary embodiment, but the explanation of the fixing pin 61 formed on the push shaft 60 will be omitted because the fixing pin 61 is fixed to the fixing hole 22 at the same structure as the fixing pin 41 of the drill shaft 40.

[29] Meanwhile, the structure in which the handle 20 is assembled with the supporting device 10 will be explained as follows, as illustrated above with reference to FIGS. 1 to 4.

[30] First, the supporting device 10 is formed at both sides thereof with a coupling protrusion 14 protruded upward and the handle 20 is formed at both sides thereof with an coupling hole 21 for receiving the coupling protrusion 14 at a position corresponding to the coupling protrusion 14. Accordingly, since the supporting device 10 and the handle 20 are integrated in a body when the coupling protrusion 14 is inserted into the coupling hole 21 at 2 positions thereof as shown in FIG. 4, the supporting device 10 rotates at the same direction that the handle 20 rotates when forcing the handle 20 to rotate.

[31] Herein, the coupling protrusion 14 and the coupling hole 21 are replaced in the positions with each other, and the shapes thereof are not limited. That is, the present drawings just show that the coupling protrusion is formed on the supporting device and the coupling hole is formed on the handle, as an exemplary embodiment, in contrast, it may be possible that the coupling hole may be formed on the supporting device and the coupling protrusion may be formed on the handle so that each may be assembled with each other.

[32] FIGS. 5 to 8 are process diagrams illustrating surgical procedures using in order the backbone disease surgery appliance according to an exemplary embodiment of the present invention. The surgical procedure in which bone reinforcement is implanted into the diseased part of backbone will be explained with reference to FIG. 5 to FIG. 8.

[33] First, at a state that the drill shaft 40 is fixed to the handle 20, as shown I FIG. 5, the drill shaft 40 is inserted into the through hole 13 formed in the supporting device 10 and the guide needle 11 so that the handle 20 is coupled to the supporting device 10, and then the drill shaft 40 is inserted into diseased part 71 of back bone. At this time, the front portion of the drill shaft 40 is easily inserted to the desired part, the diseased part 71, when forcing the drill shaft 40 to rotate using the sharp portion of the drill shaft 40 and the screw part 12 of the guide needle 11 until the front portion of the drill shaft 40 reaches the diseased part 71 of the backbone.

[34] Thereafter, the drill shaft 40 is separated from the guide needle 11 and the supporting device 10 when the handle 20 is pulled to release the assembled state of the handle 20 and supporting device 10, and then the guide awl 30 is separated from the handle 20 by using the switch 23 and the drill shaft 40 is again fixed to the handle 20 using the switch 23.

[35] Next, the drill shaft 40 is separated from the guide needle 11 and the supporting device 40, and then the pipe 50 is inserted into the guide needle 11 until the front portion of the pipe reaches the diseased part 71 through a hole formed by the drill shaft 40 as shown in FIG. 5. At this time, the pipe 50 can be accurately inserted to the depth of the hole bored by the drill shaft 40 with reference to the marks 52 indicated in the pipe 50.

[36] Meanwhile, the implantation hole 51 formed in the pipe 50 has been already filled with a bone reinforcement having proper viscosity, which was made by a separate work from the surgical process.

[37] Next, the push shaft 60 is fixed to the handle 20 as shown in FIG. 8, and then the bone reinforcement that was filled in the implantation hole 51 is implanted into the diseased part 71 when pushing the push shaft 60 through the implantation hole 51.

[38] Such processes can control the implantation amount of bone reinforcement controlled according to the number of the pipes 50. To complete the surgical procedure, the guide needle 11 is separated from the backbone 70 by rotating the supporting device 10 in the reverse direction.

[39] To accurately complete the surgical procedure, it is preferable that the guide awl 30 having a sharp end portion be fixed to the handle 20 before the drill shaft 40 is coupled to the guide needle 11 in the surgical procedure as shown in FIGS. 5 to 8.

[40] FIG. 9 is a perspective view showing whole structural devices of the surgical appliance for backbone disease according to another exemplary embodiment of the present invention, in which the guide awl 30 is just added to the structure as indicated in FIG. 1, which has a sharp end portion to easily penetrate the through hole 13 of the guide needle 11 as explained above.

[41] FIGS. 10 and 11 are process diagrams showing a part of surgical procedures using the surgical appliance according to another exemplary embodiment of the present invention.

[42] As shown in FIG. 10, the guide awl 30 is inserted into the through hole 13 of the supporting device 10 and the guide needle 11 so that the handle 20 is coupled to the supporting device 10, and then the guide awl 30 is inserted into diseased part 71 of back bone. At this time, the sharp end portion of the guide awl 30 is easily inserted to the desired part of the backbone 70 due to the screw part 12 formed on the guide needle, when forcing the handle 20 to rotate at a state that the guide awl 30 is inserted in the backbone until the sharp end portion of the guide awl 30 reaches the diseased part 70 of the backbone.

[43] Thereafter, the drill shaft 40 is separated from the guide needle 11 and the supporting device 10 when the handle 20 is pulled to release the assembled state of the handle 20 and supporting device 10, and then the guide awl 30 is separated from the handle 20 by using the switch 23 and the drill shaft 40 is again fixed to the handle 20 using the switch 23.

[44] If the drill shaft 40 has been inserted into the guide needle 11 as mentioned above, since the following processes may be preceded according to the process order as shown in FIG. 5c and 5d, the corresponding explanations will be omitted. As explained above, the surgical appliance of the present invention is adapted to use selectively the necessary elements.

[45] As shown in FIG. 11, if referring to the marks 44 formed on the circumference of the drill shaft 40 before the drill shaft 40 is inserted into the guide needle 11, a user can see the position of the end portion of the drill shaft 40, that is, the depth of the drill shaft 40.

[46] FIG. 12 is a front and bottom view showing a drill portion of a drill shaft of the surgical appliance according to an exemplary embodiment of the present invention. [47] As shown in FIG. 12, the drill portion 43 formed on a lower circumference of the drill shaft 40 or the entire surface of the circumference of the drill shaft 40 may be formed at the edge thereof with a sharp blade or a plurality of sharp blades such as the blade of a knife. The blade may include 4 blades 43a, 43b, 43c, and 43d.

[48] In the structure, as the drill portion 43 rotates, the hard backbone 70 may be easily bored by the blades 43a, 43b, 43c, and 43d. It is preferable that the edges of the blades 43a, 43b, 43c, and 43d each be formed with an inclined portion 45.

[49] Herein, the drill portion 43 is explained above according to a limited exemplary embodiment as shown in FIG. 8, but other than the limited exemplary embodiment, the drill portion 43 may be formed with any shapes such as spiral shaped sharp blades formed of recesses and protrusions on the lower circumference or entire circumference of the drill shaft 40 so that the drill shaft may be inserted into the back bone 70 by rotating the drill portion, not a striking method. The present invention is not limited to the above- specified embodiment but includes any surgical appliance including drill portion which can reach a disease part of backbone by a rotation method, not a hitting method or striking method. Industrial Applicability

[50] As described above, according to the backbone disease surgical appliance of the present invention, there is an advantage that there is no need to give a blood transfusion to a patient and the patient is rapidly restored to health because the surgery is performed with a hole bored to about the depth of lcm only thereby minimizing the pain of the patient. In addition, bone reinforcement is prevented from flowing into other tissues, and it prevents a piercing to abdomen and a pain occurring by striking the appliance with a hammer to drive the appliance into the backbone, thereby completing the surgery while a surgeon feels stabilized

[51] In addition, according to the present invention, it is effective in the fact that the structure of the surgery appliance is simplified thereby reducing the manufacturing cost and there is an advantage that the guide awl, drill shaft and push shaft can be easily coupled to and decoupled from one handle so as to be replaced with each other without any difficulties thereby mastering the replacement methods and delay in the surgery can be prevented so that a surgeon may simply complete the operation.

[52] The forgoing embodiments are merely exemplary and are not to be construed as limiting the present invention. The present teachings can be readily applied to other types of apparatuses. The description of the present invention is intended to be illustrative, and not to limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art.

[53] [54]

Claims

[1] A surgical appliance for backbone disease, comprising: a guide needle formed with a screw part on the lower circumference or the entire surface of the circumference thereof and a through hole at the axis center thereof, the guide needle positioned at a right angle to a supporting device; a handle adapted to be coupled to the supporting device; and a drill shaft formed with a drill portion on the circumference thereof to penetrate the through hole of the guide needle, the drill shaft formed at a right angle to a supporting device.

[2] The surgical appliance for backbone disease as claimed in claim 1, wherein the supporting and the handle are formed with a coupling protrusion on any one of the supporting device and the handle and a coupling hole for receiving the coupling protrusion of the handle or the supporting device so that the supporting device and the handle are coupled to and fixed to each other.

[3] The surgical appliance for backbone disease as claimed in claim 1 or claim 2, wherein the drill shaft is formed on the upper side thereof with a fixing pin having a fixing recess formed at a side portion thereof in a body, the handle is formed at a predetermined portion thereof with a fixing hole that is attachably and detachably coupled to the fixing pin, and the fixing hole is elastically provided at a side thereof with a switch having a large sized diameter portion and a small sized diameter portion at a predetermined portion thereof, which is penetrated into the fixing hole at a right angle to the fixing hole so that the drill shaft and the handle are fixed to each other when the fixing recess is positioned at the large sized diameter portion and separated from each other when the fixing recess is positioned at the small sized diameter portion.

[4] The surgical appliance for backbone disease as claimed in claim 3, wherein the drill shaft is replaced with a guide awl to penetrate the guide needle, the guide awl is formed in a body at the upper portion thereof with a fixing pin having a fixing recess at a side portion thereof so that the guide awl is fixed to and separated from the fixing hole of the handle.

[5] The surgical appliance for backbone disease as claimed in claim 3, wherein the guide needle is penetrated by a pipe that is formed at the center of axis thereof with an implantation hole for being filled with bone reinforcement, in replacement with the drill shaft, and the implantation hole is penetrated by a push shaft that is formed on the upper portion thereof with a fixing pin having a fixing recess in a body so as to be fixed to and separated from the fixing hole of the handle, thereby implanting bone reinforcement.

[6] The surgical appliance for backbone disease as claimed in claim 1 or 2, wherein the drill shaft is formed at the upper portion with marks on a scale for indicating the surgical depth.

[7] The surgical appliance for backbone disease as claimed in claim 5, wherein the pipe is formed at the upper portion with marks on a scale for indicating the surgical depth.

[8] The surgical appliance for backbone disease as claimed in claim 1 or 2, wherein the drill portion is formed in a spiral shape with at least one or more sharp blade on the lower circumference or the entire surface of circumference of the drill shaft to bore a hole into penetrate backbone by rotating, not striking.

[9] The surgical appliance for backbone disease as claimed in claim 8, wherein the front edge of each of the at least one or more blade is formed with inclined portion.