KR20080093474A - Surgical apparatus for bone fracture - Google Patents

Abstract

A surgical apparatus for a bone fracture is provided to reduce danger such as shock by reducing surgical time and minimizing bleeding without affecting intradermal soft tissues of a patient. A surgical apparatus for a bone fracture includes a rod coupling device, a rod insertion guide(320), and a one touch holder(330). The rod coupling device is coupled with a correction rod(200). The rod insertion guide receives the rod coupling device inside to provide a moving path of the rod coupling device. The one touch holder is connected to the rod coupling device inside the rod insertion guide and has a rotating unit. The correction rod has a conically protruded rod tip, a curved rod body, and a rod end received inside the rod insertion guide.

Description

Surgical Apparatus for Bone Fracture

1 is a perspective view showing the whole of the bone fracture treatment apparatus of the present invention.

Figure 2 is a perspective view of the spinal column fixing device of the present invention.

3 is a perspective view showing a calibration rod of the present invention.

Figure 4 is a human rear view showing a portion of the bone fracture treatment instrument of the present invention passes through the human body.

Figure 5 is a front flow diagram showing a surgical bone treatment instrument of the present invention.

Figure 6 is a front flow diagram showing a rotating member moved to the upper side by performing a rotational movement around the body of the bone fracture treatment instrument of the present invention.

Figure 7 is a front flow diagram showing a spinal fixation device located at the lower end of the screw clamper of the treatment instrument for bone fracture treatment of the present invention.

Figure 8 is a front flow diagram showing a correction rod fastened to the rod insertion guide of the bone fracture treatment apparatus for treatment of the present invention.

Figure 9 is a front flow chart showing the pressure tightening of the correction rod by the rotation of the one-touch holder of the treatment apparatus for bone fracture treatment of the present invention.

Figure 10 is a front flow diagram showing a rotating member moved to the lower side by performing a rotational movement around the body of the bone fracture treatment instrument of the present invention.

Figure 11 is a schematic diagram showing by reproducing the procedure to the affected area using the bone fracture treatment apparatus of the present invention.

12 is a front view showing a rod fastening device of the present invention.

Figure 13 is a front view showing a rod insertion guide of the present invention.

Figure 14 is a front view of the rod fastening device is located inside the rod insertion guide of the present invention.

Fig. 15 is an anatomical front view showing a state before rotating a one-touch holder of the present invention.

Fig. 16 is an anatomical front view showing a state after rotating the one-touch holder of the present invention.

17 is a conceptual diagram showing the effect of multi-threaded versus multi-threaded bone movement of the multi-threaded portion of the present invention.

<Explanation of symbols for main parts of the drawings>

100 : spine fixing device

110: screw 120: head 121: rod insertion opening 122: support 130: tightening screw

200 : calibration rod

210: rod end 211: grip groove 212: flat portion 220: rod exec 230: rod tip

300 : bone fracture treatment instrument

310: rotating member 311: female coupling portion

320: rod insertion guide 321: male coupling portion 322: rod tightening opening

323: One-touch holder support 324: Pressure inclined surface

330: One-touch holder 331: Multiple threaded bone 332: Rotating portion 333: Handle 334: Fixed part

340: rod fastening device 341: multi-threaded

341a: Multiple thread structure 341b: Single thread structure

342: bend joint 343: rod fastening portion 344: grip 345: sliding insert

346: rod end seating portion 347: incision 348: compression slope 349: grip end

350: screw clamper 351: clamper holder 352: holder pin

360: the body

370: Fastener 371: washer

400 : rear part of the human body

410: central portion 420: rod insertion guide passage 430: screw clamper passage

500 : skin 600 : spine

610: upper spine 620: intermediate spine 630: lower spine

640: disk 650: screw transplantation

700: longitudinal movement 710: curvature movement 720: elastic contraction movement 730: elastic relaxation movement

800: vertical axis 810: pitch angle

900: single screw

The present invention relates to a surgical instrument of the spinal fixation device, and more specifically, after implanting the spinal fixation device to the individual spine of a patient having an orthopedic spinal lesion, the head of the implanted spinal fixation device In the bone fracture treatment instrument for minimally invasive correction rod for insertion, relates to a fast and easy fastening method of the bone fracture treatment instrument and the correction rod.

The vertebral fixation device is a surgical device to ensure the spinal anatomy and safety of the spine by treating a patient with spinal abnormality caused by excessive physical labor and degenerative vertebral abnormality due to old age. The screw is implanted, orthodontic rod for connecting the individual spine, characterized in that it comprises a fastening screw coupled to the spinal fixing screw.

Hereinafter, a description will be given of the apparatus and method of the conventional spinal fixing device.

Conventionally, the procedure was performed after making a minimal incision using a surgical surgical tool to secure a doctor's field of view of the spinal lesion of the patient.

The implantation of the spinal fixation device by the above general incision requires the clinician to be quite skilled.

The implantation of the spinal fixation device by the general incision is difficult to ensure the safety of the procedure consistent with the surgical parameters such as excessive discharge of blood and excessive damage of soft tissue during the procedure.

Recently, minimally invasive lesions in patients with spinal lesions have been made, allowing for simple procedures that do not require a separate incision.

However, when performing the procedure with only the minimal hole incision, implanting the spinal fixation screw into the body through the incision hole and fastening the corrective rod to the head of the spinal fixation screw make it impossible for the clinician to secure sufficient vision. However, the procedure of spinal fixation requires very sophisticated skill and skill.

Therefore, in recent years, the necessity of a surgical device and method of the spinal fixation device which can safely and easily perform the spinal fixation device even in a situation where the vision of the patient is minimally incised while the incision is minimal is increased.

Recently, since it is important to minimize the incision during the procedure, there has been proposed an apparatus and method for performing the procedure in a state in which the back of the patient with a minimum incision during the operation of the spinal fixing device. In this case, when performing two vertebrae fixing screws, only three holes (two for vertebrae fixing screw insertion and one for correcting rod insertion) are drilled on the patient's back, and then the correcting rod is fastened to one end, and the vertebral fixing device passes. A method of performing a minimally invasive procedure was introduced by using a surgical instrument having a tube.

However, in the above method, the one end of the straightening rod is in close contact with the surgical tool, and the surgical tool and the screw-to-screw bone are fastened. This method is coupled to the locking device of the surgical instrument after the insertion of the calibration rod in the surgical instrument, one end of the calibration rod is easily pulled out before the coupling of the locking mechanism of the surgical instrument has a long time to tighten.

Therefore, in recent years, in order to solve the above problems, one end of the calibration rod should be well fitted to the surgical instrument, and the necessity of the surgical instrument and the method to be easily fastened without being easily detached from the surgical instrument is increasing.

Therefore, the present invention is designed to solve the problems of the prior art as described above will be described in detail the object of the present invention.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and to provide an apparatus for treating bone fracture, in which one end of the correction rod is not easily detached from the apparatus.

The bone fracture treatment instrument 300 of the spinal fixation apparatus 100 for spinal fixation according to an embodiment of the present invention for achieving the above object is the head of the spinal fixing device 100 the correction rod 200 A rod insertion guide 320 seated on the part 120, a rod fastening device 340 fastened to the calibration rod 200 in the rod insertion guide 320, and a multi-screw part of the rod fastening device 340 ( It is characterized by consisting of a one-touch holder 330 for driving 341.

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

1 is a perspective view showing the entire bone fracture treatment apparatus of the present invention. Referring to Figure 1, the bone fracture treatment instrument 300 is a rod insertion guide 320 for seating the correction rod 200 to the head portion 120 of the spinal fixing device 100, the rod insertion A one-touch holder located in the guide 320 and having a multi-threaded bone 331 coupled to the rod fastening device 340 for fastening with the calibration rod 200 and the multi-threaded portion 341 above the rod fastening device 340. 330, the fixing part 334 preventing the external detachment of the one-touch holder 330, the rod fastening device 340, and being seated on the head part 120 of the spinal fixing device 100. It consists of a calibration rod 200 is characterized in that the connection between the bone fracture treatment apparatus and the calibration rod is achieved.

2 is a perspective view showing the spinal column fixing device 100 of the present invention. Referring to FIG. 2, the spinal column fixing device 100 includes a screw 110 to be fixed to the spine, a head portion 120 to fasten the calibration rod 200 on the screw 110, and the head portion 120. A calibration rod 200 penetrating through the rod insertion hole 121 of the), and a fastening screw 130 for fixing the calibration rod 200 inserted into the head 120 is achieved.

3 is a perspective view showing a calibration rod 200 of the present invention. Referring to FIG. 3, the calibration rod 200 is a grip groove which is compressed by a rod tip 230 protruding in a conical shape, a rod trunk 220 having a curvature, and the surgical instrument 300 for bone fracture treatment. It is characterized by consisting of a rod end 210 having a (211).

Figure 4 is a rear view of the human body showing the portion of the bone fracture treatment instrument 300 of the present invention passes through the human body. Referring to FIG. 4, the bone fracture treatment apparatus 300 includes one rod insertion guide passage 420 and a rod insertion guide 320 through which the rod correction guide 200 is fastened. The screw clamper 350 containing the spinal column fixing device 100 is inserted into a plurality of screw clamper passages 430 through which the surgical clamping device 100 can be operated by only a local incision of the soft tissue.

5 to 10 is a flow chart showing the operation of the bone fracture treatment instrument 300 of the present invention will be described in detail the principle of the mechanism generated in each process.

Figure 5 is a front flow diagram showing a bone fracture treatment instrument 300 of the present invention. Referring to Figure 5, in the bone fracture treatment apparatus 300, the rod insertion guide 320 for seating the orthodontic rod 200 to the head portion 120 of the spinal fixing device 100, The multi-threaded bone 331 is located inside the rod insertion guide 320 and coupled with the multi-threaded portion 341 on the rod fastening device 340 and the rod fastening device 340 to be fastened to the calibration rod 200. The one-touch holder 330 having a, characterized in that consisting of the fixing portion 334 to prevent the external departure of the one-touch holder 330.

Figure 6 is a front flow diagram showing a rotating member 310 moved upward by performing a rotational movement around the body 360 of the bone fracture treatment instrument 300 of the present invention. 6, the rotation member 310 of the bone fracture treatment instrument 300 is characterized in that it has a function of rotational movement around the body (360).

Figure 7 is a front flow diagram showing a spinal fixing device 100 located on the bottom of the screw clamper 350 of the bone fracture treatment instrument 300 of the present invention. Referring to Figure 7, the spinal fixing device 100 is characterized in that it is implanted in the spine through the inner passage of the screw clamper (350).

8 is a front flow diagram showing a correction rod 200 fastened to the rod insertion guide 320 of the bone fracture treatment apparatus 300 of the present invention. Referring to FIG. 8, the calibration rod 200 is inserted into the rod fastening opening 322 to be seated on the rod insertion guide 320. In detail, the calibration rod 200 is described in detail. When inserted into the rod insertion guide 320, the rod end 210 is in contact with the sliding insert portion 345 of the rod fastening device 340 is located in the rod insertion guide 320. Thereafter, both grips 344 are opened with elastic relaxation movements 730 around the cutout 347 of the rod fastening device 340, and the grip 344 is provided at the rod end 210. The grip groove 211 is hooked so that the grip 344, which has been opened by the elastic relaxation movement 730 of the rod fastening device 340, is restored to an initial position so that the locking fastening (or primary fastening) is completed. It features.

In addition, it is preferable that the vertical distance between both grip ends 349 of the rod fastening device 340 is smaller than the vertical distance between both flat parts 212 of the rod end 210.

In addition, it is preferable that the calibration rod 200 seated on the rod insertion guide 320 is not separated from the rod fastening device 340 unless the operator forcibly applies an external force.

Figure 9 is a front flow diagram showing the pressure tightening of the orthodontic rod by the rotation of the one-touch holder of the treatment apparatus for bone fracture treatment of the present invention. Referring to FIG. 9, a longitudinal axis upward movement between the multi-threaded bone 331 inside the one-touch holder 330 and the multi-threaded portion 341 above the rod fastening device 340 by the rotation of the one-touch holder 330. 700 is generated. The rod fastening device 340 is moved in the direction of the one-touch holder 330 along the curvature of the rod insertion guide 320 by the driving force of the longitudinal axis movement 700. At this time, the compression inclined surface 348 of the rod fastening device 340 is pressed against the pressure inclined surface 324 inside the rod insertion guide 320 so that the grip is centered on the cutout 347 of the rod fastening device 340. 344 is pressed to firmly tighten the grip groove 211 of the rod end 210 (or secondary fastening).

At this time, the lower surface of the rotary part 332 of the one-touch holder 330 is a curvature movement of the rod fastening device 340 with the one-touch holder support part 323 located on the upper surface of the rod insertion guide 320 as a cloud point. It is characterized by inducing 710.

Figure 10 is a front flow diagram showing a rotating member 310 moved downward by performing a rotational movement around the body 360 of the bone fracture treatment instrument 300 of the present invention. Referring to FIG. 10, the orthodontic rod 200 which is engaged with and fastened to the bone fracture treatment instrument 300 has the main body 360 as a centripetal point by the rotational movement of the rotating member 310. It is characterized in that it is seated in the rod insertion hole 121 provided in the head portion 120 of the spinal fixing device (100).

11 is a schematic diagram showing the procedure to the affected area using the bone fracture treatment instrument 300 of the present invention. Referring to FIG. 11, the bone fracture treatment instrument 300 of the present invention effectively cuts only the skin through which the screw clamper 350 and the rod insertion guide 320 pass, thereby effectively performing spinal lesions. It is done.

12 is a front view showing a rod fastening device 340 of the present invention. Referring to FIG. 12, the rod fastening device 340 has a curved joint portion 342 having a predetermined curvature, the multiple screw portion 341 formed by winding a plurality of threads simultaneously on the upper side of the curved joint portion 342, It characterized in that it comprises a rod fastening portion 343 for fixing the rod end 210 of the calibration rod 200 to the lower side of the bent joint 342.

In addition, the rod fastening portion 343 is fastened to the cutting groove 211 provided in the cutting portion 347, the rod end 210 of the calibration rod 200, the elastic opening and vowel movement In order to be characterized in that it consists of grips 344 formed on both sides of the incision 347 to the central axis.

In addition, the grip 344 is a rod end positioned through the inclined sliding inserting portion 345 and the sliding inserting portion 345 to facilitate insertion of the rod end 210 of the calibration rod 200. It is preferably composed of a seating portion 346 and the compression inclined surface 348 formed on the outer peripheral surface of the grip 344.

13 is a front view showing the rod insertion guide 320 of the present invention. Referring to FIG. 13, the rod insertion guide 320 is a male coupling part 321 connected to the female coupling part 311 of the rotating member 310 upward, and a rod into which the calibration rod 200 is inserted downward. Consists of the fastening inlet 322, characterized in that the tubular shape having a curvature.

In addition, a pressure inclined surface 324 for transmitting a compressive force to the compression inclined surface 348 of the rod fastening device 340 in the rod fastening inlet 322 is characterized in that it is provided.

14 is a front view in which the rod fastening device 340 is positioned inside the rod insertion guide 320 of the present invention. Referring to Figure 14, the rod fastening device 340 is characterized in that the configuration is inserted into the rod insertion guide 320.

In addition, the compression inclined surface 348 of the rod fastening device 340 is preferably located on the pressure inclined surface 324 of the rod insertion guide 320.

Hereinafter, in Fig. 15 to 17 will be described in detail the principle of fastening the correction rod 200 to the bone fracture treatment instrument 300 of the present invention.

15 and 16 are anatomical front views showing a state before and after rotating the one-touch holder 330 of the present invention. 15 and 16, the multi-threaded to multi-threaded bone movement between the multi-threaded portion 341 and the one-touch holder 330 of the rod fastening device 340 is the one-touch holder support portion 323 of the rod insertion guide 320. It is characterized by inducing the longitudinal axis movement 700 of the multi-screw part 341 as a jump point.

Subsequently, the bent joint 342 of the rod fastening device 340 performs the curvature movement along the curvature of the rod insertion guide 320 by the multi-screw part 341 performing the longitudinal movement 700. It is characterized by.

Subsequently, the compression inclined surface 348 of the rod fastening device 340 moves to the inside of the pressure inclined surface 324 of the rod insertion guide 320 by the curvature movement of the bending joint 342. Both grips 344 of the device 340 are characterized by performing an elastic contraction motion 720 within the range of the incision 347.

In addition, the grip 344 performing the elastic contraction motion 720 by pressing the grip groove 211 of the rod end 210 located in the rod end seating portion 346, thereby the correction rod ( 200 is characterized in that the fastening to the bone fracture treatment instrument 300 of the present invention.

In addition, when the one-touch holder 330 rotates in the opposite direction, both grips 344 of the rod fastening device 340 may be formed by using the upper surface of the one-touch holder as a supporting point according to the principle described above. Characterized in that restored to the shape.

17 is a conceptual diagram showing the effect of multi-threaded versus multi-threaded bone movement of the multi-threaded portion 341 of the present invention. Referring to FIG. 17, the screw thread formed on the outer circumferential surface of the multi-threaded portion 341 is characterized in that two or more spirals are formed at the same time.

As the number of spirals that are simultaneously formed geometrically increases, the pitch angle 810 decreases in the longitudinal axis 800 of the thread, which causes the multithreaded portion 341 and one spiral having an outer circumferential surface formed with two or more spirals simultaneously. When the single screw portion 900 having the formed outer circumferential surface performs the movement of the screw-to-screw bone at the same rotation speed, the longitudinal axis raising movement 700 has a general range in which the former is larger.

When comparing the multi-threaded structure 341a and the single-threaded structure 341b of the present invention as shown in the conceptual diagram of FIG. 17 based on the above principle, when the one-touch holder 330 is rotated at the same angle, The range of the induced longitudinal movement 700 is larger in the multi-threaded portion 341 having the multi-threaded structure 341a of the present invention, and the effect of this is that the correction rod 200 and the invention of the present invention can be rotated even with less rotation. By fastening and firmly fastening the bone fracture treatment instrument 300 has the advantage that can significantly reduce the procedure time and the failure of the fastening.

As described above, the present invention achieves the following effects.

As described above, the apparatus for treating bone fractures according to the present invention has an excellent advantage of helping physically, mentally, temporally and economically with local anesthesia and minimal wound care.

As described above, the apparatus for treating bone fracture of the spinal fixation device according to the present invention has little effect on the intradermal soft tissue of the patient, and reduces the risk of shock during the procedure due to shortening of the procedure time and minimal bleeding. It can be, and there is an excellent advantage of less pain of the patient after the procedure.

As described above, the apparatus for treating bone fractures according to the present invention has an excellent advantage of being able to return to a healthy life without additional complications and recovering quickly by treating a patient having a spinal lesion early.

As described above, the bone fracture treatment apparatus according to the present invention is the rod fastening device by switching the spiral motion between the multi-screw portion and the multi-screw bone of the one-touch holder located on the top of the rod fastening device to the longitudinal axis movement The lower end portion is converted to the elastic contraction movement of the grip has an excellent advantage of simply and quickly crimping the grip groove of the straightening rod end.

Claims (13)

In the fastening between the surgical instrument and the correction rod used for the treatment of bone fractures, A rod fastening device coupled to the calibration rod; A rod insertion guide for accommodating the rod fastening device therein and providing a movement path of the rod fastening device, and a one-touch holder connected to the rod fastening device inside the rod insertion guide and having a rotating part; Fracture treatment instrument. The method of claim 1, The calibration rod is a rod tip protruding in the form of a cone; Rod manager with curvature and Bone fracture treatment instrument, characterized in that consisting of the rod end accommodated in the rod insertion guide. The method of claim 2, The rod end is a bone fracture treatment instrument, characterized in that it comprises a grip groove that is engaged with the rod fastening device. The method according to claim 1, wherein And a rod fastening portion having grips formed at both ends of the incision portion providing an elastic relaxation motion to the lower side of the rod fastening device and the incision portion as a central axis. The method of claim 4, wherein The rod fastening device is the grip to be opened by elastic relaxation movement to the central axis of the incision when the calibration rod is received and The grip is hooked to the grip groove provided at the end of the rod is a bone fracture treatment instrument, characterized in that the grip that is opened by the elastic relaxation movement is restored to the initial position and the engaging is completed. The method of claim 5, Bone fracture treatment, characterized in that the vertical distance between the grip end less than the vertical distance between the both ends of the rod end and the correction rod that is not separated from the rod fastening device unless the operator forcibly applies external force Surgical instruments. The method according to claim 1 to 6, A rod fastening device which performs a longitudinal movement with the one-touch holder and performs a curvature movement along an internal curvature of the rod insertion guide; Composed of a rod insertion guide for forming the compression inclined surface for pressing the grip of the rod fastening device formed by the driving force of the curvature movement of the rod fastening device therein to allow the grip to perform the elastic compression movement Bone fracture treatment instrument, characterized in that. The method of claim 7, wherein The one-touch holder having a multi-threaded bone formed on the inner surface of the rotating part a plurality of spirals forming one screw bone; A rod fastening device having multiple threads formed on an outer circumferential surface of a plurality of spirals forming one thread; Bone fracture treatment apparatus, characterized in that the longitudinal movement of the multi-threaded to multi-threaded bone between the one-touch holder and the rod fastening device is the operating source to fasten the correction rod. The method of claim 8, The multi-screw part having an outer circumferential surface on which two or more spirals having a greater range of longitudinal axis upward motion are simultaneously formed as compared to a single screw part having an outer circumferential surface on which one helix is formed when the screw-to-screw movement of the same lateral rotation is performed. And thereby fastening the correcting rod even with a small rotation of the one-touch holder. The method according to claim 7 to 9, And an incision is formed between the grips so that an elastic compression movement of the rod fastening device is performed and a pressure fastening is made in the grip groove of the rod end. The method of claim 10, And a rod insertion guide formed on an upper lateral surface of the one touch holder supporting portion for providing a support point to the one touch holder for inducing a longitudinal movement of the rod fastening device. The method of claim 11, Located in the uppermost portion of the multi-screw portion of the rod fastening device is a bone fracture treatment instrument characterized in that it further comprises a fixing portion for preventing the detachment of the one-touch holder. The method of claim 12, When the one-touch holder rotates in the opposite direction, both grips of the rod fastening device are restored to the initial shape by the above principle, thereby converting the pressure fastening state of the grips into the locking fastening state. Instrument.

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