KR101376325B1 - Manual type skin protecting driver for operating screw for plating on maxillofacial area - Google Patents

Abstract

The present invention relates to a skin damage protective manual driver for operating a maxillofacial area, comprising: a handle body allowing a user to grip; a relay operating body provided to be able to do relative rotation with respect to the handle body by having one end coupled with the handle body; a head unit rotating by being inserted into the other end of the relay operating body so as to be linked with the relay operating body, and having a main shaft on one end of which a tip part to be coupled with a head of a screw on which spiral helix is formed; and a protective tube inserted into the outside of the main shaft of the head unit and provided to be able to do relative rotation with respect to the main shaft. According to the skin damage protective manual driver for operating a maxillofacial area, the main shaft can rotate in a state where the main shaft is separated from lips by the protective tube provided to be able to do relative rotation on the outer side of the main shaft rotated by being directly coupled with the screw, such that a lacerated wound of the oral cavity skin including lips can be inhibited from occurring, as well as the screw can be rotated for many times with the operations of pushing an operational button when the screw is inserted, and thereby, providing an advantage of remarkably facilitating the control of an entry direction of the screw at an initial stage.

Description

Manual type skin protecting driver for operating screw for plating on maxillofacial area}

The present invention relates to a manual driver for maxillofacial surgery, and in particular, a manual driver for maxillofacial surgery that can suppress the occurrence of laceration of the skin in contact with the patient during the screw rotation operation in the oral cavity for fixing the maxillofacial portion of the metal plate It is about.

In general, a screw is inserted into the plate and the bone using a manual driver common to the maxilla and the mandible for fixing the plate in the maxillofacial region.

In the past, the operation of many maxillofacial regions was performed by approaching the oral cavity, but nowadays, most patients prefer intraoral surgery for aesthetic reasons, and in practice, many maxillofacial regions are performed in the mouth. In this case, unlike the past, due to the need to perform the operation in a narrow oral cavity, the rotational part of the driver causes friction with the lips during surgery, causing frequent secondary lip trauma regardless of the operation.

On the other hand, although the structure that can cause slip when the torque of the driver is large is disclosed in Korean Patent Laid-Open Publication No. 2004-0106155, this also does not prevent the occurrence of lip trauma due to friction with the lips.

Therefore, there is a need for a driver that suppresses the occurrence of lip trauma due to screw rotation during maxillofacial procedures.

The present invention has been made to improve the above problems, and an object of the present invention is to provide a manual driver for maxillofacial surgery that can suppress the skin laceration by the rotating portion coupled to the screw.

In addition, it is to provide a manual driver for maxillofacial surgery that can be easily rotated by a predetermined length by the pressing operation in the initial screw insertion process to facilitate the initial insertion direction adjustment.

Manual driver for maxillofacial surgery according to the present invention in order to achieve the above object and the user grips the body; One end is coupled to the handle body and the relay operation body mounted to be relatively rotatable with respect to the handle body, and inserted into the other end of the relay operation body is coupled to the head of the screw thread formed in the rotation and interlocked with the relay operation body A head unit having a main shaft having a tip portion formed at one end thereof; And a protective tube inserted outside the main shaft of the head unit and mounted to be rotatable relative to the main shaft.

Preferably, the main shaft has a coupling groove which is inserted inwardly at a position spaced apart from each other along the longitudinal direction, and the protective tube has a hollow penetrated up and down to be inserted from the outside of the main shaft, the coupling groove A protrusion inserted into and inserted into the protrusion is formed on the inner surface.

In addition, by a linear operation movement in the direction close to the handle body of the operation button installed on the handle body so as to be coupled to or separated from one end of the head unit inserted into the handle body exposed to the handle body It is preferable to further include; a forward turning operation unit coupled to the head unit so that it can be advanced while turning the head unit.

In addition, the relay operating body has a detachable portion that can be removed by inserting the tartan of the main shaft is formed on one side and the detachable portion is formed to be inserted through the entrance opening formed in the handle body, the forward turning The operation unit is coupled to the operation button integrally with the turning shaft interlocked with the linear movement of the operation button in the handle body interferes with the interference key mounted in the handle body to swing back and forth; And an elastic bias member for elastically biasing the operation button in a direction away from the handle body so that the pivot shaft and the relay control body are separated from each other while the relay operating body is inserted into the handle body.

In addition, the mutually opposing surfaces of the relay operating body and the pivot shaft are formed with a fitting groove and a fitting protrusion entering and exiting the fitting groove so as to be mutually fitted and separated.

More preferably, a spherical groove is formed on an upper surface of the revolving shaft opposite to the operation button, and the operation button includes a rotating ball part rotatably coupled to the spherical groove, an extension bar extending from the rotating ball part, and It has a button body formed to extend the outer diameter from the extension bar.

According to the manual driver for maxillofacial surgery according to the present invention, the main shaft is rotatable in a state separated from the lips by a protective tube mounted to be rotated relative to the outer side of the main shaft that is directly coupled to the screw is rotated lips It is possible to suppress the occurrence of laceration of the oral skin, including, it is possible to rotate the screw several times only by pressing the operation button when inserting the screw provides a very easy to control the entry direction of the initial screw.

1 is an exploded perspective view showing the separation of the manual driver for maxillofacial surgery according to the present invention,
FIG. 2 is an exploded perspective view illustrating a state in which the sliding coupling of the detachable part is retracted to couple the main shaft to the relay operating body of FIG. 1;
3 is a cross-sectional view of the manual driver of FIG.
4 is a cross-sectional view showing a state in which the main shaft is mounted to the manual driver of FIG.
5 is a cross-sectional view showing a state in which the operation button of Figure 4 is pressed and the relay operating body and the swing shaft are coupled to each other.

Hereinafter, a manual driver for maxillofacial surgery according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

1 is an exploded perspective view illustrating a manual driver for maxillofacial surgery according to the present invention, and FIG. 2 is an exploded perspective view illustrating a state in which the sliding coupling of the detachable part is retracted to couple the main shaft to the relay operating body of FIG. 1. 3 is a cross-sectional view of the manual driver of FIG. 2, and FIG. 4 is a cross-sectional view illustrating a state in which the main shaft is mounted to the manual driver of FIG. 1.

1 to 4, the manual driver 100 for maxillofacial surgery according to the present invention includes a handle body 110, a protective tube 130, a head unit 150, and a forward pivoting operation unit 170. .

The handle body 110 is a part held by the user and has a hollow 112 penetrated along the longitudinal direction so that the relay operation unit 140 and the forward swing operation unit 170 to be described later can be mounted.

The head unit 150 is mounted to be rotatable relative to the handle body 110 and has a tip portion capable of directly coupling the head 210 of the screw 200 in which the thread is formed.

The head unit 150 includes a main shaft 120 and a relay operating body 140 formed to be separated or combined with each other.

The main shaft 120 has a structure in which an insertion hole 122 that can be inserted into a coupling groove formed in the head 210 of the screw 200 is formed at one end thereof and extends in the other end direction.

Insertion hole 122 of the main shaft 120 is applied as an example of the tip portion has a rectangular bar structure corresponding to the coupling groove of the head 210 of the screw 200, the head of the skew (200) ( It is formed to correspond to the coupling groove shape structure of 210, in the case of the structure to insert the head 210 is coupled to the outside may be formed in a corresponding structure having a hexagonal groove, a square groove according to the head shape.

The other end of the one end opposite the one end formed with the insertion hole 122 of the main shaft 120 is formed in a cylindrical shape and coupled to the surface as an insertion portion 124 inserted into the detachable portion 142 of the relay control unit 140 to be described later. The groove 126 is formed.

In addition, the main shaft 120 has coupling grooves 128 and 129 drawn inwardly at positions spaced apart from each other in the longitudinal direction for attachment and detachment of the protection tube 130 to be described later.

Relay manipulator 140 has a detachable portion 142 that can be removed by inserting the insertion portion 124 formed on the tartan of the main shaft 120 is formed on one side and the handle body (142) opposite the detachable portion 142 ( It is formed to be inserted through the entrance port (112a) of the hollow 112 formed in the 110.

When the relay operating body 140 is divided, the rotating body 144 and the upper portion of the rotating body 144 provide an area where the user can rotate the finger when the user wants to rotate relative to the handle body 110. The removable portion 142 and the lower portion of the rotating body 144 has a structure having an entry portion 146 formed to have an outer diameter that can be inserted through the entry port 112a of the handle body 110.

Here, the rotation body 144 is formed to have an outer diameter larger than the inner diameter of the inlet 112a of the handle body 110 to block the entry of the handle body 110 into the inlet 112a, to enhance the user's operability on the surface For the first goal line (144a) to form a bone parallel to each other along the first direction, and the second goal line (144b) to form a bone next to each other along the direction crossing the first direction is formed.

The detachable portion 142 is adapted to detachable the insertion portion 124 of the main shaft 120.

The detachable part 142 may include a first part 143a having a smaller outer diameter than the rotating body 144 at the upper portion of the rotating body 144, and a second part 143b having a smaller outer diameter than the first portion 143a. And an insertion guide portion 143 having an insertion hole 142a into which the insertion portion 124 of the main shaft 120 is inserted, and an outer side of the second portion 143b of the insertion guide portion 143. The interference ball 142b mounted on the mounting hole formed in communication with the insertion hole 142a to be inserted into and out of the insertion hole 142a, and the insertion guide part 143 outside the insertion guide part 143 through the upper and lower through holes. A sliding coupling 142c slid along one portion 143a, an interference jaw 142d protruding inward in the sliding coupling 142c to interfere or release the interference ball as it moves forward, and It is inserted between the jaw 142d and the first portion 143a to move the upper end of the sliding coupling 142 to the upper portion of the second portion 143b. With a stopper ring 142f mounted on a ring groove formed on the outer circumferential surface of the first spring 142e and the second portion 143b for elastic biasing to prevent the sliding coupling 142 from being separated from the insertion guide portion 143. It is.

Here, when the interference jaw 142d enters the insertion portion 124 of the main shaft 120 while the sliding coupling 142 is retracted in the direction toward the first portion 143a, the interference ball 142b is formed. Retracted in the direction of the sliding coupling 142 may escape from the insertion hole (142a), and in the state that is not applied to the external force is formed in a position that can enter the insertion hole (142a) by interfering with the interference ball (142).

2 and 3, the detachable part 142 is inserted into the main shaft 120 in a state in which the sliding coupling 142 is retracted by applying an external force downward toward the rotating body 144. When the 124 is entered and the external force applied to the sliding coupling 142 is released in a state in which the interference ball 142b enters the coupling hole 126 formed in the insertion portion 124, it is illustrated in FIG. 4. As described above, the main shaft 120 is integrally coupled with the rotating body 144.

The entry portion 146 extends a predetermined length from the lower portion of the rotating body 144 to an outer diameter smaller than the rotating body 144 so that the entry portion 146 may enter through the entry hole 112a of the handle body 110.

A longitudinal groove of the entry portion 146 is provided with a fitting groove 147 for engagement or disengagement with the swing shaft described later. The fitting groove 147 is formed in a polygonal shape, and unlike the illustrated example, a structure in which the fitting grooves are formed at equal intervals to be spaced apart from each other along the circumferential direction at a position away from the center of rotation may be applied.

The protective tube 130 is inserted to the outside of the main shaft 120 and is mounted to be relatively rotatable with respect to the main shaft 120.

The protective tube 130 has a hollow penetrated up and down to be inserted from the outside of the main shaft 120, but the protrusions 132 and 134 inserted into the coupling grooves 128 and 129 to protrude on the inner surface. Formed.

The protective tube 130 is formed of a silicon material or a synthetic resin material, and the protrusions 132 and 134 may be forcibly fitted into the coupling grooves 128 and 129 with respect to the main shaft 120 while the external strain due to pressure is increased. What is necessary is just to form it to have moderate rigidity.

Here, the protrusions 132 and 134 formed on the protective tube 130 are not formed in a ring shape to reduce the contact area with the coupling grooves 128 and 129 of the main shaft 120, but in the form of a semi-circular protrusion. Of course, it may be formed of a plurality of structures formed spaced apart from each other along the inner surface.

In addition, while the protrusions 132 and 134 of the protection tube 130 are inserted into the coupling grooves 128 and 129, the non-contact portion of the main shaft 120 and the protection tube 130 may be a protection tube at relative rotation. It is preferable that the inner diameter is determined to have sufficient separation distance to maintain the non-contact state even by slight deformation of 130).

The forward turning operation unit 170 is installed in the handle body 110 so as to be coupled or separated with the fitting groove 147 formed in the longitudinal section of the entry portion 146, which is the other end of the relay operating body 140, the handle body 110. While being coupled to the relay operating body 140 of the head unit 150 by a linear operation movement in the direction close to the handle body 110 of the operation button 171 installed to be exposed to) while turning the head unit 150 It is designed to move forward.

The forward turning operation unit 170 is integrally coupled with the operation button and interlocks with the linear movement of the operation button 171 in the hollow 112 of the handle body 110 to protrude horizontally in the hollow 112 of the handle body. The turning shaft 175 and the turning shaft 175, which are retracted by being interfered with the interference key 173, and the turning operation body 140 is inserted into the handle body 110, the turning shaft 175 and the relay operating body 140. ) Is a second spring 177, which is an elastic biasing member that elastically biases the operation button 171 in a direction away from the handle body 110 so as to maintain a state of mutual separation.

The pivot shaft 175 has a groove formed in a helical direction on the outer circumferential surface so that the pivot shaft 175 may be rotated and retracted by interfering with the interference key 173.

In addition, fittings that enter and exit the fitting grooves 147 may be mutually fitted or separated from the fitting grooves 147 of the relay operating body 140 on surfaces facing each other with the relay operating body 140 of the turning shaft 175. The protrusion 175a is formed.

Unlike the illustrated example, a fitting protrusion may be formed in the pivoting shaft 175 in the relay manipulation body 140 on the mutually opposing surfaces of the relay operating body 140 and the pivoting shaft 175.

A spherical groove 176 is formed on an upper surface of the revolving shaft 175 opposite to the operation button 171, and the operation button 171 is a rotary ball part 171a rotatably coupled to the spherical groove 176. It has a structure having an extension bar (171b) extending from the rotary ball portion 171a, and a button body (171c) formed so that the outer diameter is extended from the extension bar (171b).

Here, the spherical groove 176 and the rotating ball portion 171a serves to convert the linear retraction of the operation button 171 into the rotation of the turning shaft 175.

In this structure, as shown in FIG. 5, when the button body 171c is pressed until the second spring 177 is compressed, the screw 200 mounted on the main shaft 120 may rotate two to three times. It is preferable that the length of the retraction of the button body 171c and the number of rotations of the pivot shaft 175 can be determined.

On the outer circumferential surface of the button body 171c, a separation prevention piece 171d protruding in the direction in which the outer diameter is extended is formed.

The hollow 112 of the handle body 110 has a first inner diameter portion 112b extending to the same inner diameter as the entrance hole 112a, and a second inner diameter portion 112c having an inner diameter extended than the first inner diameter portion 112b. The second spring 177 is installed between the button body 171c and the second inner diameter portion 112c to elastically bias the button body 171c away from the handle body 110.

Reference numeral 111 denotes a through-hole through which the button body 171c can be retracted, and is screwed to the handle body 110 to interfere with the release preventing piece 171d of the button body 171c, thereby causing the button body 171c to be moved. The handle of the cap 110 to prevent the departure from the departure.

In such a structure, when the user presses the operation button 171 in the direction close to the handle body 110 while the user grips the handle body 110, the turning shaft 175 is coupled with the relay operating body 140. The relay operating body 140 is moved forward. Accordingly, the screw 200 is aligned with the insertion position in the state where the screw 200 is mounted on the insertion hole 122 of the main shaft 120, and the handle body 110 is aligned with the centering direction of the screw 200. When the operation button 171 is pressed while maintaining the posture of the screw 200, the screw 200 is rotated about two to three times to be first placed in the placement position. Subsequently, the operator may insert the screw 200 as much as the desired entry depth while rotating the rotary body 144 using a finger while pressing in the direction in which the screw 200 is placed in the state of holding the handle body 110.

As such, in the process of determining the initial placement center direction of the screw 200, the screw 200 may be rotated and advanced only by pressing the operation button 171, so that the insertion center direction of the initial screw 200 may be adjusted without shifting. That provides the benefits.

In addition, in the case where the screw 200 is to be operated while keeping the lips in an extended state according to the placement position of the screw 200, the main shaft 120 is protected by the protection tube 130 while maintaining the lips in an extended state. The procedure can be performed while rotating relative to (130) provides an advantage to prevent skin laceration.

110: handle body 110 120: the main shaft
130: protective tube 140: intermediary operation
150: head unit 170: forward swing operation unit
171: operation button

Claims (7)

A handle body gripped by a user;
One end is coupled to the handle body and the relay operating body mounted to be relatively rotatable relative to the handle body, and inserted into the other end of the relay operating body is rotated in conjunction with the relay operating body is coupled to the screw head formed screw thread A head unit having a main shaft at one end thereof with a tip portion;
And a protective tube inserted outside the main shaft of the head unit and mounted to be rotatable relative to the main shaft. The method of claim 1,
The main shaft is formed with a coupling groove drawn inwardly at a position spaced apart from each other in the longitudinal direction,
The protective tube is a manual driver for maxillofacial surgery characterized in that it has a hollow penetrated up and down to be inserted from the outside of the main shaft, the projection is inserted into the coupling groove is formed to protrude on the inner side. According to claim 2, wherein the protective tube is a manual driver for maxillofacial treatment, characterized in that formed of a silicon material or a synthetic resin material. The method of claim 1,
The head is installed in the handle body so as to be coupled to or separated from one end of the head unit inserted into the handle body, and the head is operated by a linear operation movement in a direction close to the handle body of the operation button installed to be exposed to the handle body. And a forward turning operation unit coupled to the unit so that the head unit can be moved forward while turning the head unit. The relay operating body according to claim 4, wherein
The detachable part which can be attached and detached by inserting the tartan of the main shaft is formed on one side, and the detachable part is formed to be inserted through an entrance hole formed in the handle body.
The forward turning operation unit
A pivot shaft which is integrally coupled with the operation button and moves forward and backward while interfering with an interference key mounted in the handle body in association with a linear movement of the operation button in the handle body;
And an elastic bias member configured to elastically bias the operation button away from the handle body so that the pivot shaft and the relay control body are separated from each other while the relay operating body is inserted into the handle body. Manual screwdriver for maxillofacial surgery. 6. The manual driver for maxillofacial surgery according to claim 5, wherein the intermediate operation surfaces of the relay manipulator and the pivot shaft are formed with fitting grooves and fitting protrusions entering and exiting the fitting grooves so as to be fitted and separated from each other. . The method according to claim 5, wherein the spherical groove is formed on the upper surface of the revolving shaft facing the operation button, the operation button is a rotary ball portion rotatably coupled to the spherical groove, an extension bar extending from the rotary ball portion and And Manual driver for maxillofacial treatment, characterized in that it comprises a button body formed to extend the outer diameter from the extension bar.

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