KR102659682B1 - Retractor for orbital fracture treatment - Google Patents

Abstract

The present invention relates to a retractor for orbital fracture surgery. This is used during orbital fracture surgery, and includes a body that extends in the longitudinal direction and supports the tissue inside the orbit with the extended end inserted into the orbit; It includes an expansion member that is mounted on the main body and supports the tissue together with the main body.
The retractor for orbital fracture surgery of the present invention, which is configured as described above, allows adjustment of the effective support area capable of supporting the object, thereby enabling surgery to be performed efficiently by supporting and supporting the object more stably.

Description

Retractor for orbital fracture treatment}

The present invention relates to a retractor, which is a tool used in the treatment of orbital fractures. More specifically, the present invention relates to a retractor for use in the treatment of orbital fractures, which allows adjustment of the effective area of the base and allows more efficient retraction of the object. It's about retractors.

The orbit, made of bone, serves to accommodate and protect the eyeball. A break in the bones that make up the orbit is called an orbital fracture. Orbital fractures mainly occur in the lower and inner walls of the orbit. The upper and outer walls of the orbit are thick and strong and do not break easily, but the lower and inner walls are thin and weak, so they are easily broken by physical force.

When the orbit is fractured, bleeding occurs, surrounding muscles are damaged, eye movement becomes uncomfortable or impossible, and conditions such as double vision may occur. Additionally, when fragments of the fractured bone break away and create a hole, the soft tissues of the eye fall out through the hole, causing the eye to collapse or move in position, and the tissues or muscles around the eye can be pierced by a sharp bone, damaged, or infected. do.

Orbital wall reconstruction is a surgery that returns the dislodged orbital soft tissue to its original position and, if necessary, replaces the bone at the fracture site with an artificial implant. Among the many tools used to perform this surgery are retractors. The retractor is a thin strip-shaped rod made of metal, and is used to lift soft tissue or support the eyeball 103, for example, by pushing it to the back of the eye socket 101, as shown in FIG. 1.

Figure 1 is a diagram for explaining part of the orbital fracture surgery method using the retractor 11, and Figure 2 is a perspective view of the retractor of Figure 1.

As shown, the retractor 11 is a rod-shaped member with a certain width and thickness, and both ends are rounded. The retractor (11) has plasticity and is used by bending it as needed. For example, as shown in FIG. 1, the eyeball 103 is bent to push it backward.

However, since the conventional retractor 11 has a limited width, it cannot properly support a wide range of tissues when used alone. For example, when supporting the center of an object with a retractor, the object may slip and fall to the side of the retractor (11). For this reason, two or three retractors are sometimes overlapped and then spread apart, but this method is cumbersome and reduces the accuracy of the surgery.

Domestic Registered Patent Publication No. 10-12189123 (Traction device for surgery)

The present invention was created to solve the above problems, and is a retractor for orbital fracture surgery that allows the effective support area to support the object to be adjusted, enabling surgery to be performed more stably by supporting the object more stably. The purpose is to provide.

The retractor for orbital fracture surgery of the present invention as a means of solving the problem for achieving the above object is used during orbital fracture surgery, extends in the longitudinal direction, and supports the tissue inside the orbit with the extended end inserted into the orbit. With the main body; It includes an expansion member that is mounted on the main body and supports the tissue together with the main body.

In addition, the main body is a flat stick member with a certain width and thickness, and is provided with a plurality of open holders at the ends, and the expansion member includes; It has a fitting shaft part that is detachably inserted into the open holder, and a deployment plate part that is integrated with the fitting shaft part, can rotate using the fitting shaft part as a central axis, and expands in the lateral direction of the main body when used.

In addition, the main body is a flat stick member with a certain width and thickness, and a fixed tooth portion is formed on the back surface that is not in contact with the tissue, and at the end, a plurality of penetrations extending in a direction perpendicular to the longitudinal direction of the main body are formed. It has a slit, and the expansion member is; It is provided with a fixing bracket part that is fitted into the through slit and whose position can be adjusted in the longitudinal direction of the through slit and has close teeth engaging with the fixing teeth part, and a development plate part that is integrated with the fixing bracket part and extends in the side direction of the main body. do.

In addition, the main body is a flat stick member with a certain width and thickness, and the expansion member is; It has a relatively short length compared to the main body, is overlapped with the main body, one end is coupled to the main body through a connecting pin, and rotates around the connecting pin to include a traction strip that partially extends in the lateral direction of the main body. is marked with an arc-shaped scale that takes the connecting pin as the center of the circle, and a guide is formed on the traction strip pointing towards the scale and indicating the rotation angle of the traction strip with respect to the main body.

In addition, the main body has a certain thickness and width, and a first parking groove and a second parking groove are formed on the front and back surfaces that contact the tissue, respectively, and the expansion member includes; A first traction strip that is accommodated in the first parking groove and coupled to the main body through a connecting pin and rotates using the connecting pin as a rotation axis, and that is accommodated in the second parking groove and coupled to the main body through a connecting pin, and the connecting pin It rotates as a rotation axis and is provided with a second traction strip that extends in the opposite direction of the first traction strip.

In addition, the main body has a certain width and thickness, a polygonal protrusion is fixed to the central portion, and the expansion member has a polygonal groove at one end for receiving the polygonal protrusion, and is detachably coupled to the polygonal protrusion.

In addition, the main body has a certain width and thickness and a separation prevention protrusion is formed in the center, and the expansion member has a relatively short length compared to the main body, and has a separation prevention protrusion at one end while receiving the separation prevention protrusion. A locking hole for coupling is provided.

In addition, the expansion member has the same thickness as the main body, and the separation prevention protrusion is integrated with the neck portion protruding from the front of the main body by the thickness of the expansion member, and extends by being caught in the locking hole while passing through the locking hole. It includes a locking head portion that prevents the member from being separated from the main body.

In addition, the main body has a certain width and thickness, and includes a first through hole formed through the thickness direction and a locking hole surrounding the first through hole, and the expansion member includes a second through hole corresponding to the first through hole. It has a through hole and a stopping protrusion that can be inserted into the locking hole, and further includes a close fitting portion that elastically adheres the main body and the expansion member while being inserted into the first and second through holes.

In addition, the close fixation part; A screw fixing pin that is inserted into the first and second through holes to rotatably support the expansion member and has a female screw hole formed in the central axis, and a press screw that engages the female screw hole to maintain the coupled state of the main body and the expansion member; It is equipped with a spring that elastically adheres the support head and the main body.

The retractor for orbital fracture surgery of the present invention, which is configured as described above, allows adjustment of the effective support area capable of supporting the object, thereby enabling surgery to be performed efficiently by supporting and supporting the object more stably.

Figure 1 is a diagram for explaining part of an orbital fracture surgery method using a retractor.
Figure 2 is a perspective view of a conventional retractor.
Figure 3 is a partially exploded perspective view of a retractor for orbital fracture surgery according to an embodiment of the present invention.
Figures 4 and 5 are diagrams for explaining a modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention.
Figures 6 and 7 are diagrams showing a modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention.
8 to 10 are diagrams for explaining another modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention.
11 and 12 are diagrams for explaining another modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention.
Figures 13 and 14 are diagrams for explaining another modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention.
Figures 15 to 17 are diagrams for explaining another modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention.

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the attached drawings.

The retractor of the present invention is a surgical tool used in the treatment of orbital fractures. For example, it is used when it is necessary to temporarily open, lift, or push objects such as tissue inside the orbit or the eye (hereinafter referred to as internal tissue). . In the following description, actions such as opening, lifting, pushing, etc. will be referred to as “traction.”

The retractor of the present invention has the feature of expanding the contact area with respect to the internal tissue. In other words, when the internal tissue is towed, the contact area with the internal tissue is expanded to prevent sliding to the side or damage to the internal tissue when the internal tissue is towed.

For example, the narrower the contact area between the retractor and the internal tissue, the greater the pressure applied per unit area of the internal tissue when pulling the internal tissue, so it is easy for damage to the internal tissue to occur, such as fine blood vessels or nerves. This may be cut. For example, if the eyeball is pulled using a thin rod-shaped member, the eyeball may be deformed and internal bleeding may occur. If possible, the contact area with the towing object should be as large as possible to prevent damage to internal tissues and achieve more stable towing.

The retractor 20 for orbital fracture surgery of the present invention includes a main body 21 that extends in the longitudinal direction and supports the tissue inside the orbit with the extended end inserted into the orbit, and is mounted on the main body and includes the tissue together with the main body. It is provided with an expansion member that supports and supports the. The expansion member can be implemented in various ways, which will be explained later. All of the retractors 20 themselves, which will be described later, are plastically deformable, so the user can bend them to suit their needs.

Figure 3 is a partially exploded perspective view of a retractor for orbital fracture surgery according to an embodiment of the present invention.

As shown, the retractor 20 for orbital fracture surgery according to this embodiment consists of a main body 21 and two expansion members 23.

The main body 21 is a flat stick member made of a metal plate with a certain thickness and width. Both ends of the main body 21 have a rounded shape. The width or thickness of the main body 21 may vary.

Additionally, a plurality of open holders 21a are provided at one end of the front of the main body 21 (the surface facing the internal structure). Two open holders (21a) are located at both ends in the width direction of the main body (21), and removably accommodate the fitting shaft portion (23b) of the expansion member (23).

The expansion member 23 has a fitting shaft portion 23b and an expansion plate portion 23a. The fitting shaft portion 23b is a straight bar member whose both ends are inserted into and supported by the open holder 21a. The insertion shaft portion 23b is detachable from the open holder 21a and can rotate while mounted on the open holder 21a. The open holder 21a serves as a hinge that rotatably supports the expansion member 23.

The deployment plate portion 23a is a plate-shaped member with a certain thickness, and is expanded in the direction of arrow a using the fitting shaft portion 23b as a rotation axis, and is in close contact with the internal tissue, and pulls the internal tissue together with the main body 21. It assists in traction of the main body 21.

As mentioned above, the expansion member 23 is removable from the open holder 21a, so expansion members 23 of various sizes are prepared in advance, and during surgery, expansion members 23 of the required size or shape are used. It can be used by replacing it as many times as you like.

Figures 4 and 5 are diagrams for explaining a modified example of the retractor 20 for orbital fracture surgery according to an embodiment of the present invention.

Hereinafter, the same reference numbers as the above reference numbers indicate the same members with the same function.

As shown, the retractor 20 according to the modified example consists of a main body 21 having two through slits 21k and an expansion member 31 inserted into and supported by the through slits 21k.

A fixing tooth portion (21m) is formed on the back of the main body 21, that is, on the opposite side of the front, which is in contact with the internal tissue of the orbit. The fixed tooth portion (21m) is a tooth-shaped uneven portion with a constant pitch. The tooth pattern is parallel to the longitudinal direction of the main body 21. That is, the line formed by the mountain portion of the fixed tooth portion (21m) is parallel to the longitudinal direction of the main body (21).

The through slit 21k is a through hole with a certain width and extends in a direction perpendicular to the longitudinal direction of the main body 21. In this embodiment, two through slits 21k are used, but there may be three or more through slits 21k.

The expansion member 31 is position-adjustable in the arrow b direction or c direction while being fitted into the through slit 21k, and has a fixing bracket portion 31b and an expansion plate portion 31a.

The fixing bracket portion 31b is a bent portion integrally formed on both sides of the end of the deployment plate portion 31a, and is capable of adjusting the longitudinal position of the through slit 21k while being supported on the through slit 21k. The length (H) of the fixing bracket portion (31b) is relatively longer than the thickness of the main body (21). Additionally, the fixing bracket portion (31b) is provided with a close contact tooth portion (31c). The close toothed portion 31c can be meshed with the fixed toothed portion 21m.

As explained above, since the length of the fixing bracket portion 31b is longer than the thickness of the main body 21, there is a gap between the rear surface of the main body 21 and the close contact tooth portion 31c. The degree of the clearance is such that when the expansion plate portion 31a is completely brought into surface contact with the main body 21, the fixing tooth portion 21m and the contact tooth portion 31c do not engage.

The meshing of the fixed tooth portion (21m) and the close tooth portion (31c) is performed by adjusting the position of the expansion member (31) in the direction of arrow b or c with respect to the main body (21) by completing the internal structure with the expansion member (31). This happens when towing. In other words, the meshing is achieved by the reaction force generated when the internal tissue is pressed by the expansion member 31. This means that no movement of the expansion member 31 occurs when the internal tissue is pulled with the retractor 20.

The deployment plate portion 31a is a plate-shaped member of a certain thickness integrated with the fixing bracket portion 31b, extends in the lateral direction of the main body 21, and pulls the internal structure together with the main body 21. The size or shape of the deployment plate portion 31a may vary.

Figures 6 and 7 are diagrams showing a modified example of the retractor 20 for orbital fracture surgery according to an embodiment of the present invention.

The retractor 20 shown in FIGS. 6 and 7 includes a main body 21, an expansion member 24, and a connecting pin 22.

As described above, the main body 21 is a flat stick member with a certain width and thickness.

In addition, the expansion member 24 is a flat stick member having the same thickness and width as the main body 21, and is composed of a traction strip 24a and a pointer 24b. The expansion member 24 has a relatively short length compared to the main body 21. When not in use, the expansion member 24 is overlapped with the main body 21 as shown in FIG. 6, and when in use, it acts in a state rotated in the direction of arrow e or the opposite direction.

The connection pin 22 is a part that connects one end of the traction strip 24a and approximately the center of the main body 21, and allows the expansion member 24 to rotate using the connection pin 22 as the central axis of rotation. The expansion member 24 rotates while facing the front of the main body 21 by the connecting pin 22.

In addition, a scale portion 21c is marked on the front of the main body 21. The scale portion 21c is an arc-shaped scale extending along the circumferential direction of a circle with the connecting pin 22 as the center of the circle. The scale portion 21c indicates the included angle θ of the traction strip 24a with respect to the main body 21.

The pointer 24b is a needle that is integrated with the end of the traction strip 24a and extends toward the scale 21c, allowing the angle θ between the traction strip 24a and the main body 21 to be read. do. The user can set the angle of the expansion member 24 with respect to the main body 21 at a constant level through the scale portion 21c and the traction strip 24a.

8 to 10 are diagrams for explaining another modified example of a retractor for orbital fracture surgery according to an embodiment of the present invention. FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8.

The retractor 20 shown in FIGS. 8 to 10 has a main body 21 provided with first and second parking grooves 21d and 21e on both sides, and first and second parking grooves 21d and 21e, respectively. It is provided with a first traction strip (24c) and a second traction strip (24d) as installed expansion members.

The first parking groove 21d and the second parking groove 21e are spaces formed on the front and rear surfaces of the main body 21, respectively. The first parking groove 21d is blocked to the right in the drawing of FIG. 9, and the second parking groove 21e is blocked to the left.

The first traction strip (24c) is accommodated in the first parking groove (21d) and one end is connected to the main body (21) through a connecting pin (22). The first traction strip 24c can rotate in the direction of arrow f and the opposite direction using the connection pin 22 as a rotation axis. Additionally, the second traction strip (24d) is accommodated in the second parking groove (21e) and is coupled to the main body through the connecting pin (22). The second traction strip (24d) rotates using the connection pin as a rotation axis, and rotates and unfolds in the opposite direction of the first traction strip, that is, in the direction of arrow g.

In this way, by applying two expansion members, that is, the first and second traction strips 24c and 24d, to one main body 21, the first and second traction strips are deployed simultaneously, thereby increasing the area of contact with the internal tissue. It can be expanded.

11 and 12 are diagrams for explaining another modified example of the retractor 20 for orbital fracture surgery according to an embodiment of the present invention.

The retractor 20 shown in FIGS. 11 and 12 consists of a main body 21 having polygonal protrusions 25 and an expansion member 26 provided with polygonal grooves 26a. The expansion member 26 is a member having the same thickness and width as the main body 21, and has a polygonal groove 26a at one end.

The polygonal protrusion 25 is a protrusion fixed to approximately the center of the main body 21, and is removably inserted into the polygonal groove 26a. Rotation of the expansion member 26 is prevented by inserting the polygonal protrusion 25 into the polygonal groove 26a. For example, if the expansion member 26 is coupled to the main body 21 with an included angle of 45 degrees, the 45 degree angle is maintained when the retractor 20 is used. In this way, the included angle can be fixed to the desired angle, so there is no hassle of changing the included angle during use, which is convenient. The outward surface of the polygonal protrusion 25 is flush with the inward surface of the polygonal groove 26a.

To change the angle between the central axis of the main body 21 and the central axis of the expansion member 26, separate the expansion member 26 from the main body 21, rotate it to a desired angle, and then reconnect it.

In addition, even if the internal tissue is towed with the expansion member 26 opened at an angle of 45 degrees, the expansion member 26 is not separated from the main body 21. The reason is that the inner surface of the polygonal groove 26a is in contact with the outer surface of the polygonal protrusion 25, and also, when the internal tissue is pulled, the polygonal protrusion 25 acts as a fulcrum for the force of the expansion member 26. Because it does. In Figure 11, a hexagon is used as the polygonal protrusion, but the polygonal protrusion can take various shapes such as octagon and decagon in addition to hexagon.

Figures 13 and 14 are diagrams for explaining another modified example of the retractor 20 for orbital fracture surgery according to an embodiment of the present invention.

The retractor 20 in FIG. 13 is characterized by a separation prevention protrusion 27 formed on the main body 21 and a locking hole 26c formed on the expansion member 26.

The separation prevention protrusion 27 is a protrusion fixed to approximately the center of the main body 21 and has a neck portion 27b and a locking head portion 27a. The neck portion 27b is a portion that protrudes from the front of the main body by the thickness of the expansion member. In addition, it is a disk-shaped member in which the locking head portion (27a) is fixed to the neck portion (27b). The diameter of the locking head portion 27a is larger than the diameter of the neck portion 27b.

The expansion member 26 has a relatively short length compared to the main body and has a locking hole 26c at one end. The inner diameter of the locking hole 26c is larger than the diameter of the locking head portion 27a. Therefore, when the extension member 26 is moved in the direction of arrow m after passing the locking head portion 27a through the locking hole 26c, the locking hole 26c comes into close contact with the neck portion 27b and at the same time, the locking head portion 27a ) is caught. As long as the locking hole (26c) is caught on the locking head portion (27a), the expansion member (26) is not separated from the main body (21).

15 to 17 are diagrams for explaining another modified example of the retractor 20 for orbital fracture surgery according to an embodiment of the present invention.

The retractor 20 shown in FIGS. 15 to 17 includes a main body 21, an expansion member 26, and a close fitting portion 28.

The main body 21 is a flat stick member with a certain width and thickness, and has a first through hole 21f formed through the thickness direction and a plurality of locking holes 21g surrounding the first through hole. The locking holes 21g are arranged at equal intervals with the first through hole 21f at the center. The number of locking holes (21g) applied may vary.

The expansion member 16 is a flat stick member with a shorter length than the main body 21 and is provided with a second through hole 26e at one end. The second through hole 26e has the same inner diameter as the first through hole 21f. Additionally, the expansion member 16 is provided with a plurality of stopping protrusions 26f. The stopping protrusion 26f is a protrusion corresponding one to one to the locking hole 21g, and can be inserted into the locking hole 21g with the expansion member 26 overlapping the main body 21. The number of stopping protrusions (26f) and locking holes (21g) is the same.

The close fitting part is inserted into the first and second through holes (21f, 26e) and elastically brings the main body (21) and the expansion member (26) into close contact, and includes a screw fixing pin (28e), a spring (28d), and a press. Includes screw 28a.

The screw fixing pin 28e passes through the first and second through holes, rotatably supports the expansion member 26, and is composed of a through pin 28f and a support head 28h. The through pin 28f has a cylindrical shape and has a female screw hole 28g at the central axis. The support head 28h is integrated with the through pin 28f and is elastically supported in the arrow p direction by a spring 28d.

The push screw (28a) is coupled to the female screw hole (28g) to maintain the coupled state of the main body (21) and the expansion member (26). The head portion 28b of the push screw 28a presses the expansion member 26 toward the main body 21.

Ultimately, the main body 21 and the expansion member 26 are kept in elastic close contact by the elastic force of the spring 28d, and the stopping protrusion 26f is inserted into the locking hole 21g. When the user rotates the expansion member 26 left and right, the stopping protrusion 26f leaves the locking hole 21g into which it was inserted and then moves to another locking hole 21g located in the front of the rotation direction.

In the retractor 20 having this configuration, the stopping protrusion 26f is inserted into the locking hole 21g and elastically adheres to it by the spring 28d, so that the angle of the angle-adjusted expansion member 26 is stable. It is maintained and easy to use.

Above, the present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications can be made by those skilled in the art within the scope of the technical idea of the present invention.

11: Retractor 20: Retractor 21: Main body
21a: open holder 21c: scale 21d: first parking groove
21e: Second parking groove 21f: First through hole 21g: Locking hole
21k: Through slit 21m: Fixed tooth 22: Connecting pin
23: Expansion member 23a: Deployment plate portion 23b: Fitting shaft portion
24: expansion member 24a: traction strip 24b: guideline
25: polygonal protrusion 26: expansion member 26a: polygonal groove
26c: Locking hole 26e: Second through hole 26f: Stopping protrusion
27: Separation prevention protrusion 27a: Locking head portion 27b: Neck portion
28: Close fixing part 28a: Push screw 28b: Head part
28d: Spring 28e: Screw fixing pin 28f: Penetrating pin
28g: Female screw hole 28h: Support head 31: Expansion member
31a: Deployment plate part 31b: Fixing bracket part 31c: Close tooth part
101: Eye socket 103: Eyeball

Claims (10)

delete Used during orbital fracture surgery,
a main body that extends in the longitudinal direction and supports tissue inside the orbit with the extended end inserted into the orbit; Includes an expansion member mounted on the main body and supporting the tissue together with the main body,
The main body is a flat stick member with a certain width and thickness, and has a plurality of open holders at the ends,
The expansion member is; It has a fitting shaft portion that is detachably inserted into the open holder, and a development plate portion that is integral with the fitting shaft portion and can rotate around the insertion shaft portion as a central axis and expands in the lateral direction of the main body when in use.
Retractor for orbital fracture surgery. Used during orbital fracture surgery,
a main body that extends in the longitudinal direction and supports tissue inside the orbit with the extended end inserted into the orbit; Includes an expansion member mounted on the main body and supporting the tissue together with the main body,
The main body is a flat stick member with a certain width and thickness, and a fixed tooth portion is formed on the back surface that is not in contact with the tissue, and at the end, a plurality of through slits extending in a direction perpendicular to the longitudinal direction of the main body are formed. Equipped with
The expansion member is; It is provided with a fixing bracket part that is fitted into the through slit and whose position can be adjusted in the longitudinal direction of the through slit and has close teeth engaging with the fixing teeth part, and a development plate part that is integrated with the fixing bracket part and extends in the side direction of the main body. doing,
Retractor for orbital fracture surgery. delete delete delete delete delete delete delete

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