JP4072750B2 - Promoter tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
Conventionally, when a pelvis or the like is fractured, the present invention has been fixed by a fixing member until it is healed, and after the healing, the fixing member has been removed. It relates to what promotes.
[0002]
[Prior art]
Conventionally, for example, as shown in FIG. 6, when the root portion of the femur is fractured with respect to the pelvis, a screw bolt with a thick and long screw is often used as shown in FIG. The fracture part was fixed by. After the bonded portion has healed, the screw is removed by rotating the groove of the screw bolt head with a screwdriver.
[0003]
[Problems to be solved by the invention]
In the above-described configuration for releasing the fixation, the bone meat portion is brought into close contact with the bolt when healed, and pain is caused when it is removed. Therefore, the patient needs to be careful with great care. For this reason, it took a considerable amount of time to remove it carefully. In particular, in the case of infants and the like, it took a long time to release the fixation.
[0004]
Therefore, in the present invention, when releasing the bone fixing bolt, the rotation groove of the bolt, which is the bone fixing member, is swung in advance so that it can be easily removed, and the pain and pain to the patient are avoided as much as possible. The present invention provides a promoter tool that promotes release and enables early release time.
[0005]
In order to solve the above problems, in the present invention, in order to facilitate the removal of a fixing bolt having a screw at the tip for fixing the bone meat at the fractured portion, an insertion portion that can be inserted into the rotation groove of the bolt is provided at the tip. It has insertion portion with the insertion portion of the insertion attachment portion when being inserted into the groove in the groove, provided with means for swinging the Sukuryuu fixing the flesh to fixed or opposite to the fixed direction, swinging The moving means is to peel off the fixation between the bone meat portion and the fixing member prior to the removal of the fixing bolt , and the fracture is caused by peeling off the fixation between the bone meat portion and the fixing member. Provided is a promoter tool for facilitating removal of a fixing bolt for fixing bone and bone of a site. Therefore, when the bolt is removed, the present promoter can be operated in advance to reduce the patient's pain, and the removal time can be shortened.
[0006]
Further, in order to facilitate the removal of the member that fixes the bone meat at the fractured part, it is provided with means for increasing or decreasing the force or the rocking width to rock the member, and is fixed to the bone meat part in advance by the rocking. Provided is a promoter tool that peels off adhesion between members and promotes removal.
The means for increasing or decreasing the swinging force or swinging width of the swinging mechanism provides a promoter tool that increases or decreases the current or increases or decreases the rotation radius of the crank mechanism. Promote removal smoothly.
[0008]
The swing mechanism is provided with a promoter tool that reciprocates with an electromagnet.
[0009]
The swing mechanism is a promoter tool that causes a reciprocating motion by a rotating disk and a crank mechanism.
[0010]
The swing mechanism is a promoter tool that causes a reciprocating motion by a crank mechanism that connects the drive rotating disk and the driven disk.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described based on an example with reference to the drawings. FIG. 1 shows one embodiment of a promoter tool 1 that facilitates removal by loosening a fixing bolt 10 that is a bone and meat fixing material by swinging.
[0012]
As shown in FIG. 1, the structure of the promoter device 1 mainly includes a swing shaft 11 that swings around an axis, a drive member that swings the swing shaft 11, and a power source (not shown). .
[0013]
In this embodiment, as shown in FIG. 1, the swing shaft 11 is provided with an insertion portion 110 for mounting an insertion chuck portion 12 that is a member for swinging the fixing bolt 10 provided with a screw at the tip. The insertion portion 110 is provided with a hole 111. The distal end of the insertion chuck portion 12 has an insertion portion 121 to be inserted into a rotation groove (minus or cross-shaped groove) of the fixing bolt 10 that fixes the fractured portion of the bone and meat. A fitting portion 120 that fits into the hole 111 is provided. The insertion part 121 of the insertion chuck part 12 is fitted in the groove for rotation of the fixing bolt 10, and swinging motion, that is, swinging in the anti-fixing direction or reciprocating direction, is relieved in advance.
As for the insertion relationship, the insertion portion 120 of the insertion chuck portion 12 is a hexagonal portion, and the hole 111 of the corresponding insertion portion 110 is also a hexagonal portion, so that it can be easily attached and detached. . Of course, various hexagonal shapes can be adopted as the square shape.
[0014]
If the size of the fixing bolt 10 is different and the groove dimension of the head of the fixing bolt 10 is different, the insertion chuck portion 12 can be changed to one that matches the size. The attachment chuck portion 12 can be replaced by being removed from the hole 111 of the insertion portion 110.
[0015]
FIG. 2 shows a state where the promoter device 1 according to the embodiment of the present invention is used. Since the fixing bolt 10 is made to swing with respect to the fixing bolt 10, as a result, the fixing bolt 10 is easily loosened. It became possible to do.
In particular, at first, the amplitude of the swing angle is reduced to produce a so-called micro-vibration, the effect on the resistance force against rotation is reduced, and a gentle micro-vibration is given to the bone and the vibration due to the swing. Increasing the speed or gradually increasing the amplitude is preferable to further reduce pain for the patient.
[0016]
Or you may change the force which concerns on rocking | fluctuation from weak to strong.
[0017]
As the swing mechanism, various methods such as mechanical means and electrical means can be adopted.
[0018]
FIG. 3 (1) shows an example of electrical means, which is swung by an electromagnet 113 and is swung by alternately switching the triacs 1 and 2 with a flip-flop circuit. is there. The swing bar 112 connected to the swing shaft 11 is attracted by an electromagnet, and then the current is cut off, and the opposite electromagnet 113 is attracted to swing.
[0019]
Note that a variable transformer can be connected to the circuit, and the force relating to the swing can be changed to gradually switch from weak to strong.
[0020]
In the case shown in (2) of FIG. 3, similarly, only one is an electromagnet, and the other is provided with a spring, and the flip-flop circuit and the switching circuit cause oscillation. In this example as well, a variable resistor (not shown) is placed in the DC circuit, the current is controlled, the force related to the swing is changed, and gradually switched from weak to strong, Pain can be reduced.
[0021]
As another means for changing the swing width, the gap between the electromagnet and the swing bar can be changed.
[0022]
As shown in (1) of FIG. 4, the screw 114 is cut to the support 114 of the electromagnet 112, and the screw shaft 115 can be moved closer or away by rotating the knob 117 at the end. It is possible to keep it small and gradually increase it.
[0023]
Of course, the screws of the support of the left and right electromagnets 112 are opposite to each other.
[0024]
Further, as the means for mechanically swinging, a mechanism capable of swinging movement can be adopted as shown in FIG. In (1) of FIG. 5, when the left driving wheel 7 rotates, the driven wheel 70 swings.
[0025]
5 (2), when the drive wheel 8 rotates in one direction, the left rack 80 reciprocates, and the driven gear 801 connected to the swing shaft 11 is swung. The auxiliary support gears 800 and 800 support the reciprocating motion. Reference numeral 810 denotes a hole for moving the piston for increasing the moving width of the reciprocating motion, and the moving width can be reduced or increased by moving the piston to the hole 810.
[0026]
In the case of (1) in FIG. 5 as well, this point can be similarly performed by providing the driving wheel 7 with a hole 710 for position movement.
[0027]
It goes without saying that various mechanisms and circuits conventionally used by those skilled in the art can be provided by those skilled in the art in addition to the swinging mechanism described above. Thus, the pain to the affected part can be greatly reduced, and after the fixing member is loosened, it can be easily removed with a screwdriver or the like.
[0028]
Further, in response to the above structure, the promoter 1 can be provided with an amplitude adjusting lever 2 for adjusting the amplitude of oscillation, and in the case of a DC power source, a battery housing portion 4 and a battery removing lever 3. In the illustrated embodiment, the battery storage portion 4 extends substantially perpendicularly from the main body of the promoter 1 and is a pistol type as a whole, so that it is easy to grasp and work. Of course, it is also possible to store and configure the battery storage part 4 as a straight cylinder.
[0029]
【The invention's effect】
As described above, according to the present invention, when releasing a bone fixing member, it becomes possible to easily release the member by swinging the fixing member in advance, and the pain and pain of the patient can be remarkably reduced. It was.
[0030]
Furthermore, in the present invention, since the releasing force for fixing can be reduced in advance, not only can the patient's pain and pain be reduced, but also an early release can be achieved as a result.
[0031]
Further, by gradually increasing the swinging force and amplitude range from small to large, smoother release is possible.
[0032]
[Brief description of the drawings]
FIG. 1 shows a promoter device according to an embodiment of the present invention.
FIG. 2 shows a situation where a promoter device according to an embodiment of the present invention is actually used.
FIG. 3 shows an embodiment of a swing mechanism applied to the promoter device of the present invention.
FIG. 4 shows an embodiment of a mechanism for increasing or decreasing the swing width of a swing mechanism applied to the promoter device of the present invention.
FIG. 5 shows an embodiment of a mechanism mechanism for increasing or decreasing the swing width of the swing mechanism applied to the promoter device of the present invention. FIG. 6 shows a general example showing the situation of a fractured part.
FIG. 7 shows a situation in which the fractured part is fixed with a screw / bolt.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Promoter tool 10 Fixing bolt 11 Swing shaft 110 Insertion part 111 Hole 12 Insertion chuck part 120 Insertion part 121 Insertion part 113 Electromagnet 2 Amplitude adjustment lever 7 Drive wheel 70 Driven wheel 8 Drive wheel 80 Rack

Claims (6)

For promoting the removal of a fixing bolt having a screw at the tip for fixing the bone meat of the fractured portion , the tip has an insertion portion having an insertion portion that can be inserted into the rotation groove of the bolt, and the insertion portion in the insertion portion within Once inserted into the groove of the bolt groove comprises means for swinging the Sukuryuu be fixed to a fixed or opposite to the fixed direction of flesh, rocking means includes a fixed member and the flesh portion A promotor device characterized in that it is an oscillating means that peels off the fixing between the fixing bolts prior to the removal of the fixing bolts, and promotes the removal of the fixing bolts for fixing the bone of the fractured part. A means for increasing / decreasing a rocking force or a rocking width with respect to the rocking means, wherein the rocking part peels off the fixation between the bone meat portion and the fixing member in advance to facilitate the removal; The promoter device according to claim 1 3. The promoter device according to claim 2, wherein the means for increasing or decreasing the swinging force or swinging width of the swinging mechanism increases or decreases the current or increases or decreases the rotation radius of the crank mechanism. The promoter device according to claim 2, wherein the swing mechanism is configured to reciprocate by an electromagnet. 3. The promoter device according to claim 2, wherein the swing mechanism is configured to cause swing by a rotating disk and a crank mechanism. The swing mechanism is a crank mechanism that connects the driving rotating disk and the driven disk. When the driving disk rotates, the crank mechanism attached to the driving rotating disk reciprocates with respect to the driven side. 3. The promoter device according to claim 2, wherein the driven disk causes oscillation.

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