KR102009789B1 - Medical manual driver - Google Patents

Abstract

The present invention can increase the surgical success rate by minimizing the shaking of the driver while fixing the screw into the bone bonding plate during the bonding operation, and can easily replace the tip of the driver to a variety of sizes and shapes with a single screwdriver The present invention relates to a medical manual screwdriver capable of fastening screws and inserting screws quickly and accurately to reduce the time for surgery. According to the present invention, there is provided a handle member of a predetermined form; A driven rotating member whose one end is rotatably coupled to the handle member; A coupling member for rotatably coupling the driven rotating member to the handle member; A ring member integrally formed on the front side of the handle member; Rotational force transmission means configured to rotate the driven rotating member between the ring member and the driven rotating member; A driver tip member having one end inserted into an insertion hole formed at the other end of the driven rotating member; And a driver tip detachment-fixing means for detachably coupling the driver tip member to the other end of the driven rotating member.

Description

Medical manual driver {MEDICAL MANUAL DRIVER}

The present invention relates to a medical manual screwdriver, and more particularly, in the case of splicing surgery, it is possible to increase the success rate of the surgery by minimizing the shaking of the driver during fixing by inserting a screw in the bone bonding plate, it is possible to easily replace the driver tip It is possible to fix screws of various sizes and shapes with a single screw driver, and it is related to a medical manual screwdriver that can shorten the operation time by enabling fast and accurate screw insertion.

In general, in the bone bonding surgery for bonding fractured bones, a surgical method of cutting the fractured area, inserting a suitable bone bonding plate according to the fracture type and size, and fixing the bone and the bone bonding plate with a screw is widely applied. It is becoming.

On the other hand, in order to fix the bone plate and bone during surgery, the operator rotates the screwdriver with a considerable force so that the screw can be inserted into the bone when the screw is inserted.

The screwdrivers currently commercialized are integrated and are excellent in applying a force. However, when the driver is rotated with considerable force, the screwdriver shakes. This shaking results in enlargement of the hole size of the screw inserted into the bone, so that the fixing force of the inserted screw becomes loose and loose, causing the screw inserted into the bone to come out during the period of union of the fractured bone. It is often a cause of surgical failure. Moreover, during surgery, it is necessary to rotate the screwdriver with a considerable force, which is exposed to the problem that the screw driver is difficult to insert in the correct target direction due to the shaking of the screwdriver, and even in the case of small bones, as the bone is broken It can also cause surgical failure.

In addition, when specifying a screw of various shapes and sizes, there is a problem that the operator must have a variety of drivers according to this. In addition, when screwing the screw to the bone with screwdriver, the trouble of repeatedly rotating the driver dozens of times occurs depending on the number and spacing of the threads formed on the screw, which requires a lot of patience for the operator, and also iteratively It may also cause the driver's shaking due to lack of concentration in the in-turn process.

In order to solve this problem, conventionally, a manual driver using a screw tip that is required to be attached and detached according to a procedure has been proposed, but this also has a problem in that it is difficult to proceed with rapid surgery by repeatedly rotating the driver several dozen times. .

(Document 1) Republic of Korea Patent Publication No. 10-0355435 (October 11, 2002) (Document 2) Republic of Korea Patent Publication 10-2015-0118914 (2015.10.23. Publication) (Document 3) Republic of Korea Registered Utility Model Publication 20-0472514 (August 7, 2014) (Document 4) Republic of Korea Open Utility Model Publication 20-2015-0004066 (released November 6, 2015) (Document 5) 10-0461856 (Registration of Aug. 9, 2012)

Therefore, the present invention for solving the above-described problems can be fixed at a high speed while minimizing shaking during the insertion of the screw in the surgical operation, and easy to fit the driver tip suitable for various screw shapes and sizes It is an object of the present invention to provide a medical manual driver that can be replaced easily.

The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention for achieving the objects and other features of the present invention, a medical manual screwdriver used in the bonding surgery, comprising a handle member of a predetermined form; A driven rotating member whose one end is rotatably coupled to the handle member; A coupling member for rotatably coupling the driven rotating member to the handle member; A ring member rotatably provided at the driven rotating member on the front side of the handle member; Rotational force transmitting means for transmitting the rotation of the ring member to the driven rotating member to rotate the driven rotating member; A driver tip member having one end inserted into an insertion hole formed at the other end of the driven rotating member; And a driver tip detachment-fixing means for detachably coupling the driver tip member to the other end of the driven rotating member.

According to another aspect of the present invention, a medical manual driver used in the bonding surgery, the handle member of a predetermined form; A driven rotating member whose one end is rotatably coupled to the handle member; A coupling member for rotatably coupling the driven rotating member to the handle member; A ring member integrally formed on the front side of the handle member; Rotational force transmission means configured to rotate the driven rotating member between the ring member and the driven rotating member; A driver tip member having one end inserted into an insertion hole formed at the other end of the driven rotating member; And a driver tip detachment-fixing means for detachably coupling the driver tip member to the other end of the driven rotating member.

In the present invention, the handle member is composed of a linear portion and the handle portion bent at a predetermined angle from the linear portion, the driven rotating member is formed to be stepped on the central body portion, and one end of the central body portion the handle member It may include a stepped insertion portion inserted into the insertion hole formed in the.

In one aspect of the invention, the rotational force transmission means is a drive gear tooth formed along the inner circumference of the ring member; And a driven gear tooth formed on one side of the driven rotating member.

In another aspect of the present invention, the rotational force transmission means is a drive gear tooth formed along the inner circumference of the ring member; Driven gear teeth formed on one side of the driven rotating member; And a longitudinal acceleration rotary gear means configured between the drive gear tooth and the driven gear tooth to increase the number of revolutions of the driven rotary member relative to the number of revolutions of the drive rotary member.

According to another aspect of the present invention, the longitudinal acceleration rotation gear means includes a coupling body as a drive rotation member having a rotation member insertion hole in which the driven rotation member is rotatably inserted; A plurality of coupling shafts protruding from one end surface of the coupling body; And a ring gear rotatably coupled to each of the coupling shafts, one side of which is engaged with the drive gear, and the other side of which engages the driven gear tooth, the driven rotation of a position corresponding to one end of the coupling body. The member may have a locking projection protruding outward to prevent the coupling body from being detached.

In the present invention, one end of the driver tip member is formed in an elliptical or polygonal cross-sectional shape, the insertion hole of the driven rotating member is made of a cross-sectional shape corresponding to the cross-sectional shape of the driver tip member, the driver tip detachment The fixing means includes a fastener coupler formed stepped on the front portion of the driven rotating member; At least one pair of fixing ball receiving holes formed to communicate with the insertion hole at the fixing unit coupling portion; A fixed ball provided in the fixed ball receiving hole, the one side portion and the other side portion of the fixing ball being guided to the fixed ball receiving hole and the outside, respectively; A fastener provided at an outer side of the fastener coupler and having a protruding surface protruding stepwise from an inner surface thereof; Is provided at the end of the fastener coupling portion separation prevention for preventing the fixture from being separated to one side; And an elastic member provided at the fastener coupler to elastically support the fastener to one side.

According to the medical manual driver according to the present invention described above provides the following effects.

First, the present invention has the effect of minimizing the shaking of the driver to be inserted in a stable position fixed to the palm while inserting a screw, thereby increasing the success rate of surgery.

Second, the present invention can be operated using only one hand to improve the ease of operation, even by using only one hand to increase the rotation ratio of the driver tip compared to the rotational operation to facilitate the rapid insertion to shorten the operation time There is.

Third, the present invention can easily replace a driver tip of a variety of sizes and shapes, it is possible to secure a variety of sizes and shapes of screws with a single screw driver to secure economical efficiency and product competitiveness.

The effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a side view showing a medical manual driver according to the present invention.
2 is a cross-sectional view showing a medical manual driver according to the present invention.
3 is an exploded view illustrating a medical manual driver according to the present invention.
4 is a view showing a driven rotating member constituting the medical manual driver according to the present invention.
5 is a view showing a drive rotation member and the handle member constituting the medical manual driver according to the present invention.
6 is a view showing a longitudinal acceleration gear unit included in the medical manual driver according to the present invention.
7 is a view showing a coupling state of the longitudinal acceleration rotary gear means included in the medical manual driver according to the present invention.
8 is a view showing "A" of Figure 1, showing a driver tip detachment-fixing means included in the medical manual driver according to the present invention.

Further objects, features and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

Prior to the detailed description of the present invention, the present invention may be variously modified and may have various embodiments, and the examples described below and illustrated in the drawings are intended to limit the present invention to specific embodiments. It is to be understood that the present invention includes all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

In addition, the terms "... unit", "... unit", "... module", and the like described in the specification mean a unit for processing at least one function or operation, which means hardware or software or hardware and It can be implemented in a combination of software.

In addition, in the following description with reference to the accompanying drawings, the same components will be given the same reference numerals regardless of the reference numerals and redundant description thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, a medical manual driver according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 8. 1 is a side view showing a medical manual driver according to the present invention, Figure 2 is a cross-sectional view showing a medical manual driver according to the present invention, Figure 3 is an exploded view showing a medical manual driver according to the present invention. Figure 4 is a view showing a driven rotating member constituting the medical manual driver according to the present invention, Figure 5 is a view showing a drive rotating member and a handle member constituting a medical manual driver according to the present invention, Figure 6 is a present invention Figure is a view showing the longitudinal acceleration gears included in the medical manual driver according to. Figure 7 is a view showing a coupling state of the longitudinal acceleration gear unit included in the medical manual driver according to the present invention, Figure 8 shows "A" of Figure 1, the driver included in the medical manual driver according to the present invention It is a figure which shows a tip detachment-fastening means.

Medical manual driver according to the present invention, as shown in Figures 1 to 8, the handle member 100 large; A ring member (drive rotation member) 200 provided on the front side of the handle member 100; A driven rotating member 300 having one end rotatably supported by the handle member 100; Rotational force transmission means for transmitting the rotational force of the ring member (drive rotational member) 200 to the driven rotational member 300 to rotate the driven rotational member; A driver tip member 400 provided at the other end of the driven rotation member 300; And a driver tip detachment-fixing means for detachably coupling the driver tip member 400 to the other end of the driven rotating member 300.

The handle member 100 may have a linear shape or a shape such as a total handle including a linear part and a handle part bent at a predetermined angle from the linear part. In the drawings, the handle member 100 is shown in the form of a gun handle.

In addition, the handle member 100 is formed with an insertion hole 110 to be rotatably inserted into the stepped portion 220 forming one end of the driven rotating member 200 to be described in detail below, the insertion hole ( A bolt fastening hole 120 is formed coaxially with the 110 but larger than the diameter of the insertion hole 110. The insertion hole 110 and the bolt fastening hole 120 are formed coaxially with the handle member 100 and are formed to be in communication with the outside.

The handle member 100 has a bolt (fastening member) is fastened to one end surface of the driven rotation member 300 through the bolt fastening hole 120, the driven rotation member 300 is rotatably fastened. In other words, the bolt fastened through the bolt fastening hole 120 is fastened only with the driven rotating member 300 so as not to be fixed to the handle member 100, and thus the head portion of the bolt is inserted into the insertion hole 110 and the bolt fastening hole. Hanging on the stepped surface between the 120 prevents only the driven rotation member 300 is dropped in the opposite direction to the insertion.

Next, the ring member (drive rotation member) 200 is formed in an annular ring shape, rotatably provided on the outer side of the driven rotation member 300. An inner surface of the driving rotation member 200 is provided with one component of the rotational force transmission means to be described later. Here, the ring member 200 may be formed integrally with the handle member 100, which further includes a longitudinal acceleration drive means described later, the coupling body 610 of the longitudinal acceleration drive means is driven It functions as a rotating member. This will be described in detail below.

The driven rotating member 300 is formed to be stepped in the rod-shaped central body portion 310, and one end of the central body portion 310, is inserted into the insertion hole 110 of the handle member 100. It includes a rod-shaped stepped insert 320. One side of the central body 310 is provided with component (s) of longitudinally-accelerated rotating gear means to be described later, and the other end of the driven-rotating member 300 is a component of a driver tip detachment-fixing means to be described later. (S) is provided.

Subsequently, the rotational force transmitting means for transmitting the rotational driving force of the drive rotating member 200 to the driven rotating member 300 includes a drive gear tooth 510 formed along the inner circumference of the ring member 200, and The driven gear member 520 is formed at one side of the driven rotation member 300, that is, is formed at one side of the central body part 310 to receive the rotation of the driving gear tooth 510.

As described above, the rotational force transmitting means receives the rotation of the ring member 200 to rotate the driven rotating member 300, and in this case, the ring member 200 serves as the driving rotating member.

In addition, the rotational force transmission means is configured between the drive gear tooth 510 and the driven gear tooth 520 is configured to increase the rotational speed of the driven rotation member 300 relative to the rotational speed of the drive rotation member 200 Preferably, the longitudinal acceleration rotation gear means 600 is further included. In this case, the ring gear 200 is shown to be separated from the handle member 100 in the drawing, but the ring gear 200 is the handle member 100. It is formed integrally with the coupling body 610 constituting the longitudinal acceleration gear means 600 to serve as the drive rotation member.

Specifically, the longitudinal acceleration rotation gear means 600, as shown in Figures 6 and 7, the driven body 300 is inserted, specifically the central body portion 310 of the driven rotating member 300 A coupling body 610 as a driving rotation member having a rotation member insertion hole 611 inserted therein rotatably, a plurality of coupling shafts 620 protruding from one end surface of the coupling body 610, and the It is rotatably coupled to each of the coupling shafts 620, each one of the ring gear 630 is engaged with the drive gear 510, the other side is engaged with the driven gear tooth 520.

The coupling shaft 620 is formed at a predetermined interval in the circumferential direction from one surface of the coupling body 610. In the drawing, three coupling shafts 620 are provided.

The ring gear 630 is a planetary gear that rotates around the driven gear tooth 520 of the driven rotating member 300, and thus the driven gear tooth 520 serves as a sun gear.

Here, a locking jaw 311 protruding outward is formed in the central body portion 310 of the driven rotation member 300 at a position corresponding to one end (front end) of the coupling body 610, thereby driving the driven rotation member ( The coupling body 610 of the longitudinally-accelerated rotating gear means 600 into which the 300 is inserted is prevented from being dropped toward the front side by the locking jaw 311 of the central body portion 310, and the other end of the coupling body 610 of the longitudinal acceleration rotary gear means 600. (Rear end) is rotatable and prevented from being dropped to the rear side by the handle member 100.

Next, the driver tip member 400 provided on the other end of the driven rotating member 300, because the diameter of the screw and the insertion form of the head to be used during surgery should be applied in various ways, the shape and size are different It may have a tip portion 410, it may be composed of a plurality of the dripper tip member having a different diameter and the like.

In other words, the tip portion 410 of the driver tip member 400, the coupling portion formed in the head of the screw has a shape corresponding to the square, hexagon, hexalobula shape respectively.

In addition, the diameter of the driver tip member 400, according to the diameter of the screw to be inserted into the bone, it is preferable to select a diameter that can sufficiently withstand the rotational force of the screw driver.

The other end of the driver tip member 400 is inserted into the driven rotation member 300 and restrained in the rotational direction, and easily detachable and fixed in a one-touch manner by a driver tip detachment-fixing means described later in the front-rear direction. do.

The other end of the driver tip member 400 is inserted into the insertion hole 312 formed in the front portion of the center body portion 310 of the driven rotating member 300, as described above is constrained in the rotation direction Is inserted. For example, the other end of the driver tip member 400 is formed in a cross-sectional shape other than a circular shape, for example, a polygonal shape such as an oval or a square, and the center body 310 has a cross section of the other end from the front surface. An insertion hole 312 having a shape corresponding to the shape is formed to have a predetermined length.

Accordingly, the driver tip member 400 is rotated together with the driven rotary member 300, and is easily replaceable by the driver tip detachment-fixing means described later.

The driver tip member 400, when inserting a screw of various shapes and sizes into the bone, in the case of the existing integrated screw driver, a variety of screwdrivers for the screw to be inserted is required, while the present invention provides a variety of screws to be inserted into the bone Only a suitable tip can be simply replaced. In addition, even when the tip portion 411 is worn out due to long use, the entire screwdriver is not replaced, but only the driver tip member can be replaced, which is economical.

Next, the driver tip detachment-fixing means for detachably coupling the driver tip member 400 to the other end (front part) of the driven rotation member 300 is stepped on the front portion of the driven rotation member 300. A fastener coupling part 710 which is formed to be plural, a pair of one or more fixing ball receiving holes 720 which are formed to be symmetrical to the fastener coupling part 710 and formed to communicate with the insertion hole 312, and the fixing ball accommodation A portion of one side and a portion of the other side, which are mounted to the hole 720, respectively, are provided on the outside of the fixing ball receiving hole 720 and the fixing ball 730 which is led outward, and the fixing unit 710. The fastener 740 is formed with a stepped protruding annular protrusion 741, and is provided at the end of the fastener coupling portion 710 is fastened to one end of the projection jaw 741 of the fastener coupling portion 710 Breakaway to prevent 740 from escaping to the front side And an elastic member 760 provided between the earth 750 and the other end of the protruding jaw 741 of the fastener 740 and the stepped portion of the fastener coupler 710.

When the driver tip detachment-fixing means configured as described above moves the fixture 740 to one side (right side in the drawing), the fixing force of the fixing ball 730 being contacted by the locking jaw 741 of the fixture 740 is fixed. In the released state, when the driver tip member 400 is inserted or removed, the other end of the driver tip member 400 is inserted into the insertion hole 312, and the fastener 740 is returned to the fixed ball 730. It is supported by and fixed to the mounting state.

The present invention as described above can be inserted in a stable position with the palm while inserting a screw to minimize the shaking of the driver to increase the surgical success rate, can be operated using only one hand The ease of operation can be improved, and even using only one hand, there is an advantage that the operation time can be shortened by increasing the rotational ratio of the driver tip compared to the rotational operation to facilitate rapid insertion.

In addition, the present invention can easily replace the tip of the driver of various sizes and shapes, it is possible to secure a variety of sizes and shapes of screws with a single screw driver has the advantage of securing economic and product competitiveness.

The embodiments and the accompanying drawings described herein are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed herein are not intended to limit the technical spirit of the present invention, but to explain, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be construed as being included in the scope of the present invention.

100: handle member
110: insertion hole
120: bolt fastening hole
200: ring member (drive rotation member)
300: driven rotating member
310: center body portion
311: jamming jaw
312: insertion hole
320: step insertion portion
400: driver tip member
410: tip portion
510: drive gear tooth
520: driven gear tooth
600: longitudinal acceleration gear means
610: coupling body (drive rotation member)
611: rotation member insertion hole
620: combined shaft
630: ring gear
710: fastener coupling
720: fixed ball receiving hole
730: fixed ball
740: fixture
741: protruding jaw
750: escape lock
760: elastic member

Claims (7)

Medical manual screwdriver used for splicing surgery,
A handle member of a predetermined form;
A driven rotating member whose one end is rotatably coupled to the handle member;
A coupling member for rotatably coupling the driven rotating member to the handle member;
A ring member rotatably provided at the driven rotating member on the front side of the handle member;
Rotational force transmitting means for transmitting the rotation of the ring member to the driven rotating member to rotate the driven rotating member;
A driver tip member having one end inserted into an insertion hole formed at the other end of the driven rotating member; And
And a driver tip detachment-locking means for detachably coupling the driver tip member to the other end of the driven rotating member.
Medical manual screwdriver.
Medical manual screwdriver used for splicing surgery,
A handle member of a predetermined form;
A driven rotating member whose one end is rotatably coupled to the handle member;
A coupling member for rotatably coupling the driven rotating member to the handle member;
A ring member integrally formed on the front side of the handle member;
Rotational force transmission means configured to rotate the driven rotating member between the ring member and the driven rotating member;
A driver tip member having one end inserted into an insertion hole formed at the other end of the driven rotating member; And
And a driver tip detachment-locking means for detachably coupling the driver tip member to the other end of the driven rotating member.
Medical manual screwdriver.
The method according to claim 1 or 2,
The handle member is composed of a linear portion and a handle portion bent at a predetermined angle from the linear portion,
The driven rotating member includes a central body portion and a stepped insertion portion formed to be stepped at one end of the central body portion and inserted into an insertion hole formed in the handle member.
Medical manual screwdriver. The method of claim 1,
The rotational force transmission means
A drive gear tooth formed along an inner circumference of the ring member; And
Includes; driven gear teeth formed on one side of the driven rotating member;
Medical manual screwdriver.
The method of claim 2,
The rotational force transmission means
A drive gear tooth formed along an inner circumference of the ring member;
Driven gear teeth formed on one side of the driven rotating member; And
And a longitudinal acceleration rotary gear means configured between the drive gear tooth and the driven gear tooth to increase the number of revolutions of the driven rotary member relative to the number of revolutions of the drive rotary member.
Medical manual screwdriver.
The method of claim 5,
The longitudinal acceleration rotation gear means may include: a coupling body as the drive rotation member having a rotation member insertion hole in which the driven rotation member is rotatably inserted; A plurality of coupling shafts protruding from one end surface of the coupling body; And a ring gear rotatably coupled to each of the coupling shafts, one side of which is engaged with the drive gear, and the other side of which engages with the driven gear.
The driven rotating member at a position corresponding to one end of the coupling body has a locking projection protruding outward to prevent the coupling body from being detached and formed.
Medical manual screwdriver.
The method according to claim 1 or 2,
One end of the driver tip member is formed in an oval or polygonal cross-sectional shape,
The insertion hole of the driven rotating member is made of a cross-sectional shape corresponding to the cross-sectional shape of the driver tip member,
The driver tip detachment-fixing means may include a fastener engaging portion formed stepped at the front portion of the driven rotating member; At least one pair of fixing ball receiving holes formed to communicate with the insertion hole at the fixing unit coupling portion; A fixed ball provided in the fixed ball receiving hole, the one side portion and the other side portion of the fixing ball being guided to the fixed ball receiving hole and the outside, respectively; A fastener provided at an outer side of the fastener coupler and having a protruding surface protruding stepwise from an inner surface thereof; Is provided at the end of the fastener coupling portion separation prevention for preventing the fixture from being separated to one side; And an elastic member provided at the fastener coupler to elastically support the fastener to one side.
Medical manual screwdriver.

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