WO2007139031A1 - 創外固定器 - Google Patents
創外固定器 Download PDFInfo
- Publication number
- WO2007139031A1 WO2007139031A1 PCT/JP2007/060728 JP2007060728W WO2007139031A1 WO 2007139031 A1 WO2007139031 A1 WO 2007139031A1 JP 2007060728 W JP2007060728 W JP 2007060728W WO 2007139031 A1 WO2007139031 A1 WO 2007139031A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ball
- screw
- pin
- socket
- external fixator
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6416—Devices extending alongside the bones to be positioned with non-continuous, e.g. hinged, pin-clamp connecting element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
Definitions
- the present invention relates to an external fixator for fixing a fractured bone.
- An external fixator is known as a device for reducing and fixing a bone when treating a fracture.
- An external fixator generally includes a pin to be inserted into a bone and a member for connecting the pins together, and the bone is fixed in a reduced state by fixing the member and the pin so as not to be relatively powered.
- Japanese Patent No. 3740640 a plurality of pins are inserted into a plurality of parts straddling a fractured part, and the plurality of pins are fixed to each part by clamping.
- Each clamp is connected and fixed by a rod-like member having ball joints at both ends.
- Japanese Laid-Open Patent Publication No. 10-43204 also discloses a technique in which a plurality of pins are fixed by a clamp and a ball joint is connected to the clamp.
- Japanese Special Table 2002-534150 and Japanese Patent Laid-Open No. 2005-65762 also disclose configurations in which a plurality of pins are fixed by clamps.
- a configuration is disclosed in which a rod-shaped member that couples clamps is relatively rotated and bent.
- Japanese Patent Application Laid-Open No. 2004-298253 discloses a technique for fixing a pin by ball joint means that doubles as a ball of a ball joint and a socket that covers the ball.
- Japanese Patent No. 3308271 a technique is disclosed in which a clamp member is connected to the upper end of a fixing member, and the fixing member and the coupling member are connected by tightening with a screw! Speak.
- the insertion direction of the pin is limited, and it is difficult to insert the pin accurately into the living body and perform proper reduction.
- the direction of the rod-shaped member that connects the pin on one side and the pin on the other side was limited, and the degree of freedom when attaching the external fixator was low, and the fixing strength was also low.
- a plurality of large-diameter pins 5 are held by the clamps 3 and a plurality of small-diameter pins 6 are held by the clamps 4.
- the large diameter pins 5 and the small diameter pins 6 must be arranged in the same plane, and the distance and angle between the pins are limited.
- the rotation angle of the ball is limited because the pin is used in a state of penetrating the ball of the ball joint means. Furthermore, since the ball joint means serves as both a ball and a socket, the distance between adjacent balls cannot be changed. Therefore, it is necessary to mount the external fixator in a state where the rotation angle of the balls and the distance between the balls are limited, and the insertion direction of the pin is greatly limited.
- the conventional external fixator generally has a configuration in which ball joints and pins are attached to both ends of a rod-shaped member that is long in one direction, and therefore has a force component in a direction substantially perpendicular to the rod-shaped member. It has been difficult to increase the strength against twisting and the like.
- the work of fixing the bone with the external fixator is performed by assembling the external fixator having a movable part while fixing it to the bone in a state where the bone sandwiching the fractured part can move relatively.
- the movable part is fixed. Therefore, in a conventional surgery using an external fixator, the work with the movable part is fixed to multiple pins when both the affected area and the external fixator are unstable.
- the movable part of the structure fixed to the pin is fixed with a screw, and the work of loosening the screw is repeatedly forced.
- V and the bone to be treated is as small as the palm bone! / In some cases, it cannot be designed to be large, and it must be designed to be sufficiently smaller than the socket that accommodates the ball in the first place. Not easy.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to facilitate an operation of fixing a bone with an external fixator.
- An external fixator that achieves the above object includes a plurality of pins to be inserted into a bone, a connecting member, and a plurality of ball joints.
- Each of the ball joints relatively fixes the pin and the connecting member and is connected by the connecting member, and at least a part of which is a ball, and a first support that rotatably supports the ball
- a second screw corresponding to the first screw is formed at one end and the front of the first screw is formed at the other end.
- a second support portion is formed which presses the ball against the first support portion.
- the pin and the connecting member are attached to the support member and the rotating member.
- the fastening member itself that accommodates the ball is attached to the support member. If the ball is pressed against the second support portion of the support member by rotating it, a screw other than the fastening member is not required.
- the fastening member that is an operation target for fixing the ball joint The ball joint can be adjusted and fixed by rotating the single member. Therefore, the external fixator of the present invention greatly facilitates the work of fixing the bone.
- the second support portion supports the at least three points while supporting the second screw.
- the center of gravity of the contact point always coincides with the center of the ball.
- the frictional force that restricts the rotation of the ball is independent of the rotation direction of the ball, Regardless of which direction the ball tries to rotate, it will have the same resistance. Therefore, in the external fixator of this configuration, the force necessary to adjust the posture of the connecting member with respect to the pin can be adjusted simultaneously for the posture change in all directions by only rotating the single member (fastening member). And can be fixed. Further, in the external fixator having this configuration, the fixing force of the posture of the connecting member with respect to the pin can be simultaneously increased with respect to the omnidirectional posture change by only rotating the single member (fastening member). As a result, the work of fixing the bone with the external fixator becomes easier.
- the connecting member or the pinker is also applied to the ball joint by the twisting force in the direction in which the second screw of the fastening member is loosened. Therefore, the fastening force between the fastening member and the support member can be gradually reduced. However, by providing the external fixation device with the third screw, the fastening force between the fastening member and the support member can be maintained.
- At least one of the rotating member and the supporting member may be magnetized in a direction that attracts the other! /.
- the rotating member and the support member may be formed of a plastic magnet.
- external fixators are used while confirming the joint state of the fracture site using X-rays. If the external fixator is made of a material with a low X-ray transmittance, the external fixator will appear dark in the X-ray image, making it difficult to confirm the fracture site. Therefore, by forming the rotating member and the support member from a plastic magnet, an external fixator that can easily confirm the fracture site while maintaining the function of temporarily fixing the pin and the connecting member by magnetic force. realizable.
- the constituent members other than the rotating member and the supporting member are also made of a material having a high resin base as compared with metals and the like.
- An external fixator for achieving the above object includes a plurality of pins to be inserted into a bone, a connecting member, and relatively fixing the pin and the connecting member together with the connecting member. And a plurality of ball joints connected to each other.
- Each of the ball joints includes a rotating member at least a part of which is a ball, a socket having a recess capable of arranging the center of gravity of the ball on the inside thereof, an external force, and a screw hole reaching the recess, and the screw hole. And a screw that presses the ball against the recess when screwed into the recess.
- the said pin and the said connection member are attached to the said socket and the said rotation member, At least one of the rotating member and the socket is magnetized in a direction that attracts the other.
- the ball joint is formed by combining a ball and a socket rotatable with respect to the ball.
- the pin and the connecting member By connecting the pin and the connecting member via the ball joint, it is possible to give a high degree of freedom to the relative relationship between the two. Therefore, for example, the ball joint is attached to a pin inserted in an arbitrary direction with respect to the bone, and the connecting member is attached to the ball joint regardless of the position of the ball joint to form an external fixator.
- the size of the socket can be adjusted, and its movable range can be adjusted.
- the concave portion may be a substantially hemispherical concave portion having substantially the same diameter as that of the ball, or a rectangular concave portion as long as the ball in the ball joint can be arranged and fixed.
- the center of gravity of the ball whose distance between the end surface of the recess and the deepest portion of the recess is larger than the radius of the ball may be arranged on the inner side (recess side) of the end surface of the recess.
- the screw and the wall surface of the recess come into contact with the ball at at least four force points, and the center of gravity of the ball is arranged inside the tetrahedron with the contact point of the four force points as a vertex U. .
- the ball and the socket can be fixed by any force or combination of a plurality of screw holes. Therefore, regardless of the orientation of the main body with respect to the ball, it is possible to fix the ball and the socket by selecting a hole that can be easily screwed, and it is very easy to attach the external fixator. be able to. This effect is particularly noticeable when the external fixator is small or when the part to which the external fixator is attached has a complicated shape.
- the rotating member and the socket may be formed of a plastic magnet.
- constituent members other than the rotating member and the socket are also made of a material having a high-resin base material as compared with metal or the like.
- one of the rotating member and the socket is at the tip of the pin.
- the other of the rotating member and the socket may be attached to the attached rotating member or the socket.
- the rotating member since the pin does not penetrate the ball of the rotating member, the rotating member can be rotated without being affected by the pin, and the tip of the pin (the end opposite to the bone)
- the connecting member can be connected with a very high degree of freedom.
- the orientation of the socket can be defined independently at the tip of each pin. Therefore, the relationship between the socket and the connecting member can be determined without depending on the pin insertion direction, and the pin insertion direction and the connecting member direction can have a very high degree of freedom.
- the ball accommodated in the socket can be rotated regardless of the orientation of the pin by coupling the socket to the tip of the pin.
- the socket can be connected to the pin so that the pin and the connecting member can be connected via the ball joint, then the orientation when connecting the socket to the pin, etc. Can be adjusted as appropriate.
- the external fixing device includes an insertion portion in which a through hole is formed in either one of the rotating member and the socket, It may be inserted into the through hole of the insertion portion and fixed.
- a portion where either one of the rotating member and the socket protrudes is formed and penetrated into this portion.
- the insertion portion can be configured by forming a through hole.
- a plurality of the ball joints may be fixed to each pin.
- the orientation of the connecting member is not limited to one direction, and an external fixator with a very high degree of freedom of attachment can be provided. Further, by attaching the external fixator with the connecting member facing in a plurality of directions, the external fixator can be attached so as to have high strength against the force acting from various directions.
- one or more ball joints are connected to each of n pins (n is 2 or more), and a total of n or more ball joints are connected.
- n is 2 or more
- the ball joints By connecting the ball joint to each of the pins and fixing the pin and the connecting member via the ball joint, the relative positional relationship between all the pins and the connecting member has a very high degree of freedom. Can be made. Therefore, regardless of the orientation of each of the plurality of pins inserted into the bone, the ball joints can be connected to each other by the connecting member without being affected by the orientation, and the pins can be fixed.
- the connecting member includes a plurality of connecting portions for connecting the ball joints, and the positions of the plurality of connecting portions are small. Both of them may be adjustable in the longitudinal direction of the connecting member.
- the position of the connecting portion that connects the connecting member and the ball joint can be adjusted at least in the longitudinal direction of the connecting member. Therefore, as a result of inserting a plurality of pins into the bone in any direction, regardless of the distance between the ball joints connected to each pin, the connecting member and the ball joint are connected in accordance with the distance. can do. For this reason, it is possible to provide an external fixator that is extremely easy to use.
- the connecting member only needs to be able to connect the ball joint and adjust the connecting portion at least in the longitudinal direction of the connecting member. Therefore, the length of the connecting member itself may be adjusted to adjust the position of the connecting portion, or the ball joint may be configured to be connectable at a plurality of locations on the connecting member.
- the connecting member is configured by the member and the position of the connecting portion can be adjusted by adjusting the angle at which the connecting members are connected.
- the connecting member is connected to the first rod-shaped member and both ends of the first rod-shaped member via the screw mechanism.
- a screw member at both ends one of which is a right-hand thread and the other of which is a left-hand thread.
- the second rod-shaped member can be screwed into the first rod-shaped member while rotating in a certain rotation direction
- the third rod-shaped member can be screwed into the first rod-shaped member. It is possible to screw in while rotating the member in the opposite direction. Therefore, if the first rod-shaped member is rotated in a certain direction while the second and third rod-shaped members are connected to the first rod-shaped member, both the second and third rod-shaped members are rotated to each other. Move closer and first If the rod-like member is rotated in the opposite direction, both the second and third rod-like members move away from each other.
- the first rod-shaped member is constituted by a cylindrical member, and It is possible to adopt a configuration in which a thread groove is formed on the wall and the second and third rod-shaped members are formed of a cylindrical member and a thread is formed on the outer wall.
- any of the first to third rod-shaped members may be cylindrical, and various combinations may be employed in which a thread groove is formed.
- a connecting member is formed by connecting a plurality of rod-shaped members, and the connecting angle can be adjusted. It may be configured.
- the connecting member includes two rod-like members, and the two rod-like members are less between two ball joints connected by the connecting member. Both may be connected so as to be rotatable in a plane.
- the position of the connecting portion of the ball joint can be determined by relatively rotating the two rod-shaped members. Can be adjusted.
- the connecting portion is configured so that at least two rod-shaped members can rotate within a certain plane, and this connecting portion is also configured by a ball joint so that it can rotate with a high degree of freedom. May be.
- the external fixator described above can be applied to a treatment method for reducing bone and treating a fracture.
- it can be used for any fractures of the human body and animals.
- the size of the external fixator is not particularly limited.
- the degree of freedom when inserting the pin into the bone is extremely high. Can be applied to the treatment of complex bones and complex fractures.
- FIG. 1 is a diagram showing an example of an external fixator that works on one embodiment of the present invention.
- FIG. 2 is an explanatory view for explaining the structure of pins and balls.
- FIG. 3A is an explanatory diagram of a socket
- FIG. 3B is a cross-sectional view taken along the line AA of FIG. 3A.
- FIG. 4 is an explanatory view of a rod-shaped member.
- FIG. 5 is a diagram showing an example of an external fixator that works on one embodiment of the present invention.
- FIG. 6 is a diagram showing an example of an external fixator that works on one embodiment of the present invention.
- FIG. 7 is a diagram showing an example of an external fixator that works on one embodiment of the present invention.
- FIG. 8 is an explanatory diagram for explaining the structure of a pin and a ball that are applied to one embodiment of the present invention.
- FIG. 9 is a diagram showing an example of an external fixator that works on one embodiment of the present invention.
- FIG. 10 is a cross-sectional view illustrating an example of an external fixator according to an embodiment of the present invention.
- FIG. 11 is a perspective view showing an example of an external fixator according to an embodiment of the present invention.
- FIG. 12A is a plan view showing an example of a fastening member that is applied to one embodiment of the present invention.
- FIG. 12B is a plan view showing an example of a fastening member that is applied to one embodiment of the present invention.
- FIG. 13A is a schematic view showing a method of using an external fixator that is effective in one embodiment of the present invention.
- FIG. 13B is a schematic diagram showing a method of using the external fixator that is effective in one embodiment of the present invention.
- FIG. 13C is a schematic view showing how to use the external fixator according to one embodiment of the present invention.
- FIG. 13D is a schematic view showing a method of using the external fixator that is effective in one embodiment of the present invention.
- FIG. 13E is a schematic diagram showing a method of using an external fixator that is effective in one embodiment of the present invention.
- FIG. 13F is a schematic view showing a method of using the external fixator according to one embodiment of the present invention.
- FIG. 13G is a schematic view showing a method of using the external fixator that is effective in one embodiment of the present invention.
- FIG. 13H is a schematic view showing how to use the external fixator according to one embodiment of the present invention.
- FIG. 1 is a diagram showing an example of an external fixator that works according to an embodiment of the present invention.
- a bone 10 of a human hand is shown, and a part of the bone 11 is broken at a part 11c as an example.
- the fractured bone 11 is composed of a bone 11a and a bone l ib, and an external fixator 200 which is used in this embodiment is attached to fix the bone 11a in a reduced state.
- FIG. 1 shows a state in which the pin 210 is inserted into each of the bone 11a and the bone l ib to reduce the bone.
- a ball joint 220 is connected to the tip opposite to the bone 11.
- the ball joint 220 includes a ball 221 and a socket 222 as rotating members, and the orientation of the socket 222 can be changed with a high degree of freedom in a state where the socket 222 is covered with the ball 221.
- the socket 222 is formed with a hole provided with a thread groove, and the socket 222 can be fixed to the ball 221 by screwing a hexagon socket set screw into the hole.
- the socket 222 is formed with an insertion portion into which the connection member 230 can be inserted.
- the connection member 230 is inserted into the insertion portion and screwed into the insertion portion 230 so that the connection member 230 is inserted into the socket 222.
- the connecting member 230 includes a first bar member 231, a second bar member 232, and a third bar member 233.
- the first rod-like member 231 is a substantially cylindrical member, and a hole is formed in the center of the outer wall, and screw grooves are formed in the inner walls at both ends.
- the second rod-shaped member 232 and the third rod-shaped member 233 are substantially cylindrical members, and a thread groove is formed at one end.
- One of the screw grooves formed at both ends of the first rod-shaped member 231 is a right-hand screw and the other is a left-hand screw, one of which corresponds to the screw groove of the second rod-shaped member 232, and the other is a third screw groove.
- the thread groove of the rod-like member 2 33 corresponds.
- the second rod-shaped member 232 and the third rod-shaped member 233 are rotated in directions opposite to each other when rotating into the first rod-shaped member 231, and the second rod-shaped member 23
- the first rod member 231 is rotated to rotate the second rod member 232 and the third rod member 233.
- the distance can be close to or far from each other. For this reason, in the present embodiment, the length of the connecting member 230 can be adjusted by rotating the first rod-shaped member 231.
- the ball joint 220 is connected to the tip of the pin 210, and the connecting member 230 is connected to the socket 222.
- a connecting portion that connects the connecting member 230 and the ball joint 220 in this embodiment, the connecting member 230 that is screwed at the insertion portion of the socket 222). The position of the upper part) can be easily adjusted.
- the pin 210, the ball joint 220, and the connecting member 230 can be fixed with a very high degree of freedom regardless of the insertion direction of the pin 210. That is, when the pin 210 is inserted into the bone 11a and bone l ib, the pin 210 is inserted into the skin and the pin 210 reaches the bone 11a and bone l ib inside the skin. The pin 210 cannot be inserted while visually recognizing the shape and state.
- the bone 11a and the bone l ib are present inside the living body and are fixed in the living body because they are fractured. It is extremely difficult to do so, and the position and orientation can be easily changed by pushing the bone 11a and the bone l ib as the pin 210 is inserted. Therefore, it is extremely difficult to insert the pin 210 at a desired position in the bone in the living body or at a desired angle.
- the second rod-like member 232 and the third rod-like member 233 can be inserted into the first rod-like member 231 by a screw mechanism, The length can be adjusted by rotating the rod-shaped member 231. Therefore, regardless of the insertion direction of the pin 210, the pin 210 and the ball joint 220 can be connected very easily, and further, the ball joint 220 and the connecting member 230 can be connected.
- the second rod-shaped member 232 and the socket 222 are temporarily fixed, and the third rod-shaped member 233 and the socket 222 are temporarily bonded. Stop it. Then, while covering one end of the socket 222 with one end of the ball 221 connected to the tip of the pin 210 inserted into the bone at an arbitrary position and orientation, the length of the connecting member 230 is adjusted to finely adjust the position of the connecting portion. If adjusted, the other socket 222 can be covered with the other ball 221 very easily.
- each socket 222 can be covered with each ball 221, the ball 211 and the socket 222 are fixed by screws, and the connecting member 230 is fixed to the socket 222, thereby completing the mounting of the external fixator 200. be able to.
- the mounting order other than the pins 210 is not particularly limited.
- the socket 222 is temporarily fixed to the ball 221, and the second rod member 232 and the third rod member 233 are inserted into the insertion portion of the socket 222.
- Various attachments such as placing the first rod-like member 231 between them and connecting the screws An order can be adopted.
- it is possible to appropriately adopt operations such as releasing the temporary fixing when mounting the external fixator 200 and increasing the tightening of the screw by temporary fixing.
- FIG. 2 is an explanatory diagram for explaining the structure of the pin 210 and the ball 221.
- the pin 210 is a substantially cylindrical member, and at one end thereof, as it approaches the front end, as shown in FIG. 2, it becomes thinner and a thread groove 210a is formed.
- the ball 221 is a substantially spherical body, and includes a hole 221a into which the pin 210 is inserted and a screw hole 221b to which the pin 210 is screwed. That is, the hole 221a is a hole passing through the center of the ball 221 and the inner diameter thereof is substantially the same as the outer diameter of the pin 210. Therefore, the pin 210 can be fitted into the hole 221a.
- the pin 210 is screwed with a hexagon socket set screw 221c through the screw hole 221b in a state of being fitted into the hole 221a.
- the force for connecting the ball 221 to the tip of the pin 210 may of course be screwed so that the pin 210 does not penetrate the ball 221, or the pin 210 may penetrate the ball 221. After screwing, configure one such that one end of pin 210 is cut and ball 221 is connected to one end of pin 210.
- the entire range where the pin 210 and the socket 222 do not interfere with each other can be obtained.
- the movable range can be made. As a result, a very high degree of freedom can be given to the orientation of the socket 222.
- FIG. 3A is a view showing the socket 222 with the surface in contact with the ball 221 on the lower side and the insertion part for inserting the connecting member 230 on the upper side, and FIG. It is.
- the internal structure is indicated by a broken line.
- the socket 222 has a main body 222a having a substantially hemispherical outer shape and projects from the main body 222a.
- a substantially hemispherical concave portion 22 2c is formed inside the main body 222a.
- the concave portion 222c is formed by cutting out a hemisphere having a diameter substantially the same as the diameter of the ball 221 from the main body 222a. Therefore, the direction of the socket 222 can be adjusted with a high degree of freedom while the socket 222 is covered with the ball 221.
- screw holes 222d are formed at four force points on the wall surface of the main body 222a.
- the screw hole 222d is an outer wall force of the main body 222a and is a hole of the same diameter formed so as to reach the concave portion 222c formed inside the main body 222a.
- Each screw hole 222d is substantially on the outer circumference of the main body 222a. It is formed at equal intervals. Note that the number of the screw holes 222d is not limited to four as long as a plurality of screw holes 222d are formed, and the number can be adjusted as appropriate.
- a hexagon socket set screw 222e can be screwed into the screw hole 222d, and a hexagon socket set screw 22 2e is screwed into one or more screw holes 222d with the ball 222 covered with the socket 222.
- the socket 222 can be fixed to the ball 221.
- the intersection force of the line passing through the axis of the screw hole 222d is configured to coincide with the position of the center of gravity of the ball 221 when the ball 221 is brought into contact with the recess 222c.
- the concave portion 222c of the present embodiment is a concave portion in which the center of gravity of the ball can be disposed inside.
- the number of screw holes 222d used for fixing can be selected according to the strength required for fixing.
- four screw holes 222d are formed on the outer circumference of the main body 222a, and the socket 22 2 is fixed to the ball 221 by using any screw hole 222d. can do. Therefore, regardless of the orientation of the socket 222, it is possible to select the screw hole 222d in which the hexagon socket set screw 222e can be screwed in without interfering with the human body part, and the screwing operation can be performed very easily. Togashi.
- the insertion portion 222b protrudes from the outer surface of the main body 222a of the socket 222 to the opposite side of the recess 222c, and is an insertion hole that is substantially cylindrical and extends in a direction substantially perpendicular to the axis of the cylinder.
- the inner diameter of the insertion hole 222f is substantially the same as the outer diameter of the second rod-shaped member 232 and the third rod-shaped member 233, and the second rod-shaped member 232 and the third rod-shaped member 233 are inserted into the insertion hole 222f. Can be inserted into.
- the insertion portion 222b is formed with a screw hole 222g whose upper end force also extends to the inside of the socket 222, and a hexagon socket set screw 222h can be screwed into the insertion portion 222b. Accordingly, with the second rod-like member 232 and the third rod-like member 233 inserted into the insertion portion 222b, the connecting member 230 is inserted into the socket 22 2 by screwing the hexagon socket set screw 222h into the screw hole 222g. Can be fixed. Can be fixed.
- FIG. 4 is an explanatory view for explaining the first rod-shaped member 231, the second rod-shaped member 232, and the third rod-shaped member 233 constituting the connecting member 230.
- the structure is indicated by a broken line.
- the first rod-like member 231 is a substantially cylindrical member, and a hole 231a is formed at the center thereof, and screw grooves 231b and 231c are formed on the inner walls on both ends of the hole 231a.
- the turning direction of the groove is opposite. For example, if the thread groove 23lb is a right-hand thread, the thread groove 231c is a left-hand thread.
- the second rod-like member 232 and the third rod-like member 233 are substantially columnar members, and screw grooves 232a and 233a are formed on one side thereof, respectively.
- the outer diameters of the second rod-shaped member 232 and the third rod-shaped member 233 are substantially the same as the inner diameter of the first rod-shaped member 231.
- the turning direction of the screw groove 232a corresponds to the screw groove 231b.
- the turning direction of the screw groove 233a corresponds to the screw groove 231c.
- the second rod-shaped member 232 and the third rod-shaped member 233 are rotated. Can be close to each other or away from each other. That is, the first rod-shaped member 231 is rotated relative to the second rod-shaped member 232 and the third rod-shaped member 233.
- the length of the connecting member 230 can be adjusted.
- a groove or the like is formed on the outer surface of the first rod-shaped member 231 to prevent slipping. You can do it.
- the cylindrical portions 232b, 233b formed on the opposite side of the thread grooves 232a, 233a can be inserted into the above-described insertion portion 222f, and a hexagonal hole It is a part that can be screwed with the attached set screw 222h. Therefore, when the second rod-shaped member 232 and the third rod-shaped member 233 are fixed to the socket 222, the connecting member is inserted with the second rod-shaped member 232 and the third rod-shaped member 233 inserted into the insertion portion 222f.
- the length of 230 can be adjusted, and the hexagon socket set screw 22 2h can be contacted and fixed at an arbitrary position in the cylindrical portions 232b and 233b.
- the position where the hexagon socket set screw 222h is brought into contact with the cylindrical portions 232b and 233b (the position of the connecting portion) can be adjusted in the longitudinal direction of the connecting member 230 (L in FIG. 4). For this reason, the length of the connecting member 230 can be reduced no matter what direction the pin 210 is inserted into the bone 11 and the distance between the balls 221 connected to the pin 210 is any distance. The distance between the balls 221 can be easily adjusted and the external fixing device 200 can be fixed very easily.
- the socket 222 can be connected after adjusting the length of the connecting member 230 to be as short as possible. Therefore, the size of the external fixator 200 can be made as small as possible, and the influence of the external fixator 200 on the activity of the user can be suppressed.
- the force screw grooves 232a, 233a provided with the cylindrical rods 232b, 233b to incite the hexagon socket set screw 222h As long as it is fixed without crushing, it is also possible to fix it by bringing a hexagon socket set screw 222h into contact with the screw grooves 232a, 233a.
- FIG. 5 is a diagram illustrating an example of the external fixator 201 that is applied to the embodiment in which the connecting member is formed of a cylindrical member.
- the same configuration as the above-described embodiment is the same. This is indicated by the reference numeral.
- a connecting member 235 is employed instead of the above-described connecting member 230. Since the connecting member 235 is a cylindrical member, the external fixator 201 is configured with an extremely simple configuration. Can be provided.
- the socket 222 can be connected to an arbitrary position of the connecting member 235, no matter what orientation the pin 210 is inserted into the bone, It is very easy to put the socket 222 on the connected balls 221. Therefore, the external fixator 201 can be attached very easily without being affected by the insertion direction of the pin 210.
- the connecting member 235 In the case where one connecting member 235 is composed of one member, the connecting member 235 only needs to be a cylinder at the connecting portion with the ball joint.
- the shape between the two connecting parts may be a prism or a combination of multiple plates!
- FIG. 6 is a view showing an example of the external fixator 2020 that works on the embodiment in which the direction of the connecting member is given freedom. Also in the figure, the same components as those in the above-described embodiment are denoted by the same reference numerals.
- the connecting member 236 is composed of two rod-like members 236a and 236b and a rotation mechanism (236c to 236e)! RU
- the rod-like member 236a is connected to the annular member 236c
- the rod-like member 236b is connected to the annular member 236d.
- the annular members 236c and 236d can be connected and fixed by inserting holes (screws 236e) of the annular flanges 236c and 236d and connecting the annular members 236c and 236d with a nut (not shown). Accordingly, when the annular members 236c and 236d are combined and the screw 236e is inserted into the hole, the rod-like members 236a and 236b can be rotated in the common plane around the screw 236e.
- the rod-like members 236a and 236b are cylindrical, when the rod-like members 236a and 236b are connected to the socket 222, the position of the connecting portion can be arbitrarily selected. Therefore, no matter what orientation the pin 210 is inserted into the bone, the rotation angle of the rod-shaped members 236a, 236b, the adjustment of the connecting position of the rod-shaped members 236a, 236b with respect to the socket 222, and the socket 222 By adjusting the direction when the ball 221 is put on, the external fixing device 202 can be mounted very easily.
- the method of fixing the annular members 236c, 236d is the screw 236e.
- the rod-shaped members 236a and 236b may be configured so as to be able to rotate with a higher degree of freedom by using a force such that the rod-shaped members 236a and 236b rotate in a common plane, a ball joint, or the like.
- FIG. 7 is a diagram illustrating an example of connecting a ball joint socket to a pin. Also in the figure, the same components as those in the above-described embodiment are denoted by the same reference numerals. That is, the configuration of the pin 210 and the ball joint 220 is the same as that of the above-described embodiment. The connecting method of the ball joint 220 to the force pin 210 and the configuration of the connecting member are different from those of the above-described embodiment.
- the socket 222 of the ball joint 220 is connected to the pin 210.
- the pin 210 is inserted into the insertion portion 222f of the socket 222, and the socket is fixed with a hexagon socket set screw 222h. Fix 222 to pin 210.
- adjustments such as adjusting the diameter of the insertion portion 222f to the diameter of the pin 210 can be performed as appropriate.
- the connecting member in the present embodiment includes a first rod-shaped member 237a, a second rod-shaped member 237b, and a third rod-shaped member 237c, and the first rod-shaped member 237a is similar to the above-described embodiment.
- the substantially cylindrical shape, the second rod-shaped member 237b, and the third rod-shaped member 237c are substantially columnar members.
- the inner walls at both ends of the first rod-shaped member 237a are formed with screw grooves in the opposite direction of rotation, and the screw grooves are provided in each of the second rod-shaped member 237b and the third rod-shaped member 237c. Is formed at one end.
- the length can be adjusted by rotating the first rod-shaped member 237a.
- the linking member 237 can be configured.
- the end on the opposite side of the thread groove can be inserted into the hole 221a of the ball 221, and the second rod-shaped member 237b is secured with a hexagon socket set screw 221c.
- the second rod-shaped member 237b can be fixed to the ball 222.
- the diameter of the second rod-shaped member 237b and the third rod-shaped member 237c can be adjusted as appropriate if the diameter of the hole 221a is also used here.
- the ball 221 and the second rod A portion connecting the cylindrical member 237b and the second rod-shaped member 237b corresponds to a connecting portion. Since the length of the connecting member 237 can be adjusted by rotating the first rod-shaped member 237a as described above, the position of the connecting portion is still in the longitudinal direction of the connecting member 237. Can be changed.
- the socket 222 when connecting the socket 222 to the pin 210, the socket 222 can be freely rotated about the pin 210. Further, the length of the connecting member 237 can be adjusted with the ball 221 attached to the second rod-shaped member 237b and the third rod-shaped member 237c. Therefore, no matter how the pin 210 is inserted into the bone, the mounting of the external fixator 203 can be easily completed by adjusting the orientation of the socket 222 and the length of the connecting member 237. .
- the force shown in the example in which the pin 210 is inserted into each of the separated bones 11a and l ib as a matter of course, a plurality of pins 210 are inserted into the bone, and arbitrary 2 You may employ
- a single pin 210 may be inserted into a plurality of bones.
- the pin 210 may be penetrated into the bone 11a, and the pin 210 penetrating the bone 11a may be further inserted into 1 lb of bone to be reduced.
- the insertion method of the pin 210 can be changed as appropriate according to the fracture state, bone size, strength required for reduction, and the like.
- a hexagon socket set screw is used to fix each member.
- the member may be fixed using a slotted set screw.
- Various fixing means can be used.
- a configuration in which the connection between the ball 221 and the pin 210 or the connection between the ball 221 and the socket 222 is inserted can be employed.
- the substantially hemispherical body 222a having the substantially hemispherical recess 222c is shown as an example.
- the recess has a shape in which the ball can be arranged and freely rotated. If there is, it is not limited to a substantially hemispherical shape.
- the main body 222a is not limited to a substantially hemispherical shape, and various configurations such as a rectangular shape can be adopted.
- a ball joint 220 (hereinafter also referred to as a tip joint) composed of the above-described ball 221 and socket 222 is connected to the tip of the pin 210, and the tip join A ball joint (hereinafter also referred to as an intermediate joint) is connected between the pin and the thread groove 210a of the pin 210.
- FIG. 8 is a view showing a rotating member 2 210 for connecting the intermediate joint to the pin 210.
- the rotating member 2210 has a configuration in which a ball 2211 and a cylindrical insertion portion 2212 are connected as shown in FIG. It is possible to cover the ball 2211 with the socket 222 described above, and the socket 222 can be screwed by rotating the socket 222 around the outer periphery of the Bonole 2211 while the socket 222 and the Bonore 2211 are in contact with each other. .
- the insertion portion 2212 is formed with a hole 2210a formed in a direction perpendicular to the axis thereof and penetrating the insertion portion 2212 and a screw hole 2210b parallel to the cylinder axis.
- the hole 2210a is a hole for inserting the pin 210
- the screw hole 2210b is a screw hole for screwing the pin 210 inserted into the hole 2210a.
- the inner diameter of the hole 2210a is substantially the same as the outer diameter of the pin 210. Accordingly, the pin 210 can be fitted into the hole 2210a. Further, the pin 210 is screwed with a hexagon socket set screw 2210c through a screw hole 2210b in a state of being fitted in the hole 2210a.
- FIG. 9 is a schematic diagram showing an example of use of the external fixator in the present embodiment.
- FIG. 9 shows an example in which a total of three pins 210 are inserted into the bone 11c, lid.
- two pins 210 are inserted into the bone 11c and one pin 210 is inserted into the bone id.
- Each pin has a tip joint (ball joint 220) and an intermediate joint (ball joint). 2200) are connected!
- the tip joint is composed of the ball 222 and the socket 222 in the same manner as the ball joint shown in FIG. 1 and the like, and is connected to the tip of each pin.
- an intermediate joint composed of the rotating member 2210 and the socket 222 is connected to the pin 210.
- the external fixator can be tried by the following procedure.
- the rotating member 2210 is inserted into each pin 210, and the rotating member 2210 is inserted between the tip of the pin 210 and the bone 11c, l id with a hexagon socket set screw Temporarily fix with 221 Oc. Then, the rotating member 2210 and the socket 222 are temporarily fixed in a state where the socket 222 is put on each of the rotating members 2210. Next, similarly to FIG. 1 described above, the ball 221 is connected to the tip of the pin 210, and the socket 222 is covered and temporarily fixed, and the connecting members 235 a, 235 b, 238 are inserted into each socket 222. Temporarily stop.
- the connecting members 235a and 235b are the same as the connecting member 235 shown in FIG. 5, and the connecting member 238 is a member obtained by bending the connecting member 235.
- the direction of the connecting member in the ball joint connected to each pin 210 is not limited to one direction, and the connecting member can be connected in a state of being oriented in multiple directions. Therefore, the pin 210 can be fixed by the connecting member extending from multiple directions, the direction of the connecting member can be freely set, and the external fixator can be maintained firmly fixed. .
- the configuration shown in FIG. 9 is an example.
- the configuration of the connecting member is not limited to the configuration of the connecting members 235a, 235b, and 238, and the various connecting members described above can be employed.
- the size of the ball joints 220 and 2200 can be appropriately adjusted according to the size of the bone to be reduced, and can be different depending on the position of the pin 210.
- each screw is omitted.
- these screws are not limited to hexagon socket set screws, and various types of screws can be used.
- the configuration of the socket 222 in this embodiment is the same as the configuration shown in FIG. 3, and screw holes are formed at equal intervals on the outer periphery of the socket 222 (in this embodiment, four force points), and the axis of each screw hole is concave. It is configured to intersect at the center of the part 222c. Therefore, the hexagon socket set screw 222e can be screwed into the socket 222 from multiple directions, and as a result, the external fixator can be mounted very easily!
- the force using two linear connecting members 235a and 235b and one bent connecting member 238 is, of course, the shape of the connecting member to these shapes. Not limited. For example, you may employ
- the ball joint 320 shown in FIGS. 10 and 11 will be described.
- the ball joint 320 relatively fixes the pin 210 and the connecting member 235 and is connected to another ball joint 320 (not shown) by the connecting member 235.
- the ball joint 320 can be configured as various external fixators by replacing the ball joint described above. In other words, the configuration of the external fixator other than the ball joint can be applied to the ball joint 320 as it is as the configuration of the embodiment described above.
- the rotating member 321 is a ball in which a hole 321a into which the pin 210 is inserted and a screw hole 321b into which the pin 210 is screwed are formed. Pin 210 is inserted into hole 321a Then, it is screwed with a set screw 321c screwed into the screw hole 321b.
- the support member 322 is formed with a first screw 322b which is a male screw.
- a first support portion 322a that rotatably supports the rotating member 321 is formed at the tip of the first screw 322b.
- the first support portion 322a is a concave surface having a radius of curvature substantially the same as the radius of the rotating member 321.
- the first support portion 322a preferably has a shape that supports the rotating member 321 at three or more points.
- the center of gravity of the three points passes through the rotation axis of the first screw 322b, and the plane including the three points is perpendicular to the rotation axis of the first screw 322b.
- the center of gravity of the four or more contact points coincides with the center of the rotating member 321.
- the first support portion 3222a is a concave surface having a radius of curvature substantially the same as the radius of the rotating member 321, the center of gravity of the contact point coincides with the center of the rotating member 321.
- the support member 322 is formed with a through hole 322c and a screw hole 322d for attaching the connecting member 235.
- the connecting member 235 is inserted into the through hole 322c and fixed to the support member 322 by a screw (not shown) screwed into the screw hole 322d.
- the fastening member 323 has a cylindrical shape that has openings at both ends and accommodates the rotating member 321. That is, the fastening member 323 has a cylindrical shape in which the diameter R1 (see FIG. 12A) of one opening is larger than the diameter of the rotating member 321.
- the fastening member 323 is a special nut, and the outer surface thereof has a substantially hexagonal prism side surface shape that can be held by a spanner or the like.
- a second screw 323a which is a female screw corresponding to the first screw 322b, is formed at one end of the fastening member 323.
- the crest diameter of the second screw 323 a is designed to be larger than the diameter of the rotating member 321. Therefore, the fastening member 323 can accommodate the rotating member 321.
- the male-female relationship between the screws of the fastening member 323 and the support member 322 may be reversed. That is, a male screw may be formed on the outer surface of the fastening member 323, and a female screw may be formed on the inner surface of the support member 322.
- a second support portion 323b capable of supporting the rotating member 321 at at least three points is formed at the other end portion of the fastening member 323.
- the second support portion 323b is a portion that protrudes toward the central axis of the fastening member 323.
- the inner end of the second support portion 323b is circular as shown in FIG. 12A. Since the inner diameter R2 of the second support portion 323b is designed to be smaller than the diameter of the rotating member 321, the second supporting member 323b can support the rotating member 321 at least at three points.
- the end surface of the support portion 323b on the second screw 323a side has a tapered shape in which the diameter is increased by the direction toward the opening end of the fastening member 323 on the side where the second screw 323a is formed. .
- the second support portion 323b may have any shape as long as it can press the rotating member 321 against the first support portion 322a.
- the second support portion 323b may have a shape including a plurality of convex portions as shown in FIG. 12B. .
- the second support part 323b is on a plane perpendicular to the central axis of the second screw 323a and has a center of gravity. It is desirable that the rotation member 321 has a shape that can support the rotation member 321 at at least three points on the central axis of the second screw 323a. In this case, it is possible to fix the force necessary for adjusting the posture of the connecting member 235 relative to the pin 210 while simultaneously adjusting the posture change in all directions by only rotating the single member (fastening member). .
- the fixing force of the attitude of the connecting member 235 relative to the pin 210 can be simultaneously increased with respect to the attitude change in all directions by only rotating the single member (fastening member). As a result, the operation of fixing the bone with the external fixator is further facilitated.
- the second support A configuration in which the rotating member 321 is pressed against the first support portion 322a at one point of the portion 323b is also possible.
- a straight line that passes through the contact point between the second support portion 323b and the rotating member 321 and is parallel to the central axis of the second screw 323a has a contact point between the first support portion 322a and the rotating member 321 as a vertex.
- the end surface of the second support portion 323b on the side farther from the second screw 323a (the lower side in FIG. 10) is directed toward the opening end of the fastening member 323 on the side where the second support portion 323b is formed.
- the diameter expands Tapered shape.
- the tip of the pin 210 is inserted and fixed to each of the broken bones l la and l ib using a drill (FIG. 13A).
- the pin 210 is cut to a desired length (FIG. 13B).
- the fastening member 323 is passed through each pin 210 in an appropriate direction, and then the rotating member 321 is attached to the end of the pin 210 using the set screw 320b (FIG. 13C).
- the connecting member 235 is inserted into the through hole 322c of each support member 322 (FIG. 13E).
- the ball joint 320 can move freely and the position of the connecting portion between the connecting member 235 and the ball joint 320 can be freely adjusted, it is not possible to insert the connecting member 235 into the through hole 322c of the support member 322. Easy.
- the ball joint 320 can move freely, and the joined state of the broken bones l la and l ib can be adjusted freely when the connecting member 235 is inserted into the through hole 322c and not fixed. .
- the fastening member 323 is screwed into the support member 322 using a wrench or the like (FIG. 13F). That is, the second screw of the fastening member 323 is screwed into the first screw of the support member 322.
- the fastening member 323 is much larger than the set screw 222e shown in FIG. 3, for example, it is easy to turn the fastening member 323 with a wrench.
- the posture of the connecting member 235 with respect to the pin 210 is changed by adjusting the screwing amount of the fastening member 323. It is possible to adjust the force required to make it uniform in all directions.
- the fastening member 323 is tightly screwed into both the two ball joints 320 connected by the connecting member 235! / In this state, the posture and position of one of the broken bones l la and l ib are not substantially changed with respect to the other. For this reason, it is possible to fix the broken bones 11a and 1 lb in an appropriate joined state by one person while confirming the joined state of the broken bones l la and l ib by X-ray images.
- the ball joint does not move unless the person who is treated operates the affected part, and the ball joint is fixed in a state where the ball joint moves if the person who is treated treats the affected part. If this is possible, handling of the external fixator will be easier. However, it is not easy to realize such a state by adjusting the screw tightening amount. Therefore, it is desirable to have a configuration in which these two members are attracted by magnetic force in a state where the members (socket and support member) to which the connecting member is attached can rotate with respect to the member to which the pin is attached (rotary member). In this configuration, for example, the ball 211 and the socket 222 shown in FIG.
- the rotating member 321 and the supporting member 322 shown in FIG. 10 may be made of a ferromagnetic material magnetized so as to attract each other.
- Ferromagnetic materials include ferrite and neodymium
- iron oxide, chromium oxide, cobalt, etc. which can provide the necessary magnetic force according to the size and mass of the external fixator, can be used as appropriate. I prefer to adopt gold.
- the constituent members of the external fixation device are made of a material having a higher X-ray transmittance than that of bone, for example.
- a composite plastic material reinforced with carbon fiber or glass fiber may be used for the connecting member, or a plastic magnet may be used for the ball joint.
- engineering plastics such as polycarbonate, which can be either thermoplastic resin or thermosetting resin, polyphenylene sulfide, amorphous polyarate, aromatic polyether ketone resin, thermal resin Super engineering ring plastics such as plastic polyimide can be used.
- a plastic magnet for the ball joint it is possible to realize an external fixator that can easily confirm the fracture site while maintaining the function of temporarily fixing the pin and the connecting member by magnetic force.
- the ball 211 and the socket 222 shown in FIG. 2 are formed of a plastic magnet magnetized so as to attract each other, or the rotating member 321 and the support member 322 shown in FIG. 10 are attracted to each other.
- an external fixator can be realized that can easily confirm the fracture site while maintaining the function of temporarily fixing the ball joint by magnetic force.
- the present invention can be used for the treatment of fractures. It can also be provided as a product by manufacturers of fracture treatment devices.
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07744162.4A EP2030583B1 (en) | 2006-05-26 | 2007-05-25 | External fixator |
US12/302,438 US8366710B2 (en) | 2006-05-26 | 2007-05-25 | External fixator |
JP2008517914A JP4304321B2 (ja) | 2006-05-26 | 2007-05-25 | 創外固定器 |
CN2007800194109A CN101453959B (zh) | 2006-05-26 | 2007-05-25 | 外固定器 |
KR1020087031103A KR101377734B1 (ko) | 2006-05-26 | 2008-12-22 | 체외고정기 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2006/310561 WO2007138659A1 (ja) | 2006-05-26 | 2006-05-26 | 創外固定器 |
JPPCT/JP2006/310561 | 2006-05-26 | ||
PCT/JP2006/320293 WO2007138722A1 (ja) | 2006-05-26 | 2006-10-11 | 創外固定器 |
JPPCT/JP2006/320293 | 2006-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007139031A1 true WO2007139031A1 (ja) | 2007-12-06 |
Family
ID=38778188
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/310561 WO2007138659A1 (ja) | 2006-05-26 | 2006-05-26 | 創外固定器 |
PCT/JP2006/320293 WO2007138722A1 (ja) | 2006-05-26 | 2006-10-11 | 創外固定器 |
PCT/JP2007/060728 WO2007139031A1 (ja) | 2006-05-26 | 2007-05-25 | 創外固定器 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/310561 WO2007138659A1 (ja) | 2006-05-26 | 2006-05-26 | 創外固定器 |
PCT/JP2006/320293 WO2007138722A1 (ja) | 2006-05-26 | 2006-10-11 | 創外固定器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8366710B2 (ja) |
EP (1) | EP2030583B1 (ja) |
JP (1) | JP4304321B2 (ja) |
KR (1) | KR101377734B1 (ja) |
CN (1) | CN101453959B (ja) |
WO (3) | WO2007138659A1 (ja) |
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US8574232B1 (en) | 2012-11-13 | 2013-11-05 | Texas Scottish Hospital for Children | External fixation connection rod for rapid and gradual adjustment |
JP2014044204A (ja) * | 2012-08-24 | 2014-03-13 | Tektronix Inc | プローブ・アセンブリ、プローブ・アセンブリ用モジュール及びプローブ・アセンブリ用モジュールの使用方法 |
US8864750B2 (en) | 2008-02-18 | 2014-10-21 | Texas Scottish Rite Hospital For Children | Tool and method for external fixation strut adjustment |
US9078700B2 (en) | 2008-02-12 | 2015-07-14 | Texas Scottish Rite Hospital For Children | Fast adjust external fixation connection rod |
US9295493B2 (en) | 2008-02-05 | 2016-03-29 | Texas Scottish Rite Hospital For Children | External fixator ring |
US9443302B2 (en) | 2010-08-20 | 2016-09-13 | Amei Technologies, Inc. | Method and system for roentgenography-based modeling |
JP2017503618A (ja) * | 2014-01-24 | 2017-02-02 | オーソフィックス エス.アール.エル. | 創外固定器の適用のための細長ピン |
JP2019136194A (ja) * | 2018-02-07 | 2019-08-22 | 公立大学法人大阪市立大学 | 手指用のガイド一体型創外固定器および手指用のガイド一体型創外固定器の製造方法 |
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GB2444907A (en) * | 2006-12-20 | 2008-06-25 | Promedics Ltd | A joint fixator |
US9066757B2 (en) * | 2009-08-10 | 2015-06-30 | Virak Orthopedic Research Llc | Orthopedic external fixator and method of use |
US8282636B2 (en) | 2009-08-10 | 2012-10-09 | Imds Corporation | Orthopedic external fixator and method of use |
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US8858555B2 (en) | 2009-10-05 | 2014-10-14 | Stryker Trauma Sa | Dynamic external fixator and methods for use |
US11141196B2 (en) | 2010-08-11 | 2021-10-12 | Stryker European Operations Holdings Llc | External fixator system |
ES2549030T3 (es) | 2010-08-11 | 2015-10-22 | Stryker Trauma Sa | Sistema de dispositivo de fijación externo |
US8945128B2 (en) | 2010-08-11 | 2015-02-03 | Stryker Trauma Sa | External fixator system |
ES2541831T3 (es) | 2010-10-07 | 2015-07-27 | Stryker Trauma Sa | Elemento de acoplamiento para un dispositivo de fijación externo |
US8721566B2 (en) * | 2010-11-12 | 2014-05-13 | Robert A. Connor | Spinal motion measurement device |
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US9808289B2 (en) | 2008-02-05 | 2017-11-07 | Texas Scottish Rite Hospital For Children | External fixator ring |
US9295493B2 (en) | 2008-02-05 | 2016-03-29 | Texas Scottish Rite Hospital For Children | External fixator ring |
US9681892B2 (en) | 2008-02-08 | 2017-06-20 | Texas Scottish Rite Hospital For Children | External fixator strut |
JP2014195662A (ja) * | 2008-02-08 | 2014-10-16 | テキサス スコティッシュ ライト ホスピタル フォー チルドレン | 創外固定支柱 |
JP2011511678A (ja) * | 2008-02-08 | 2011-04-14 | テキサス スコティッシュ ライト ホスピタル フォー チルドレン | 創外固定支柱 |
US9155559B2 (en) | 2008-02-08 | 2015-10-13 | Texas Scottish Rite Hospital For Children | External fixator strut |
US20160030085A1 (en) * | 2008-02-08 | 2016-02-04 | Texas Scottish Rite Hospital For Children | External fixator strut |
US9456849B2 (en) | 2008-02-12 | 2016-10-04 | Texas Scottish Rite Hospital For Children | Fast adjust external fixation connection rod |
US9078700B2 (en) | 2008-02-12 | 2015-07-14 | Texas Scottish Rite Hospital For Children | Fast adjust external fixation connection rod |
US8864750B2 (en) | 2008-02-18 | 2014-10-21 | Texas Scottish Rite Hospital For Children | Tool and method for external fixation strut adjustment |
US9443302B2 (en) | 2010-08-20 | 2016-09-13 | Amei Technologies, Inc. | Method and system for roentgenography-based modeling |
JP2014044204A (ja) * | 2012-08-24 | 2014-03-13 | Tektronix Inc | プローブ・アセンブリ、プローブ・アセンブリ用モジュール及びプローブ・アセンブリ用モジュールの使用方法 |
US9381042B2 (en) | 2012-11-13 | 2016-07-05 | Texas Scottish Rite Hospital For Children | External fixation connection rod for rapid and gradual adjustment |
US8574232B1 (en) | 2012-11-13 | 2013-11-05 | Texas Scottish Hospital for Children | External fixation connection rod for rapid and gradual adjustment |
JP2017503618A (ja) * | 2014-01-24 | 2017-02-02 | オーソフィックス エス.アール.エル. | 創外固定器の適用のための細長ピン |
JP2019136194A (ja) * | 2018-02-07 | 2019-08-22 | 公立大学法人大阪市立大学 | 手指用のガイド一体型創外固定器および手指用のガイド一体型創外固定器の製造方法 |
JP7142820B2 (ja) | 2018-02-07 | 2022-09-28 | 公立大学法人大阪 | 手指用のガイド一体型創外固定器および手指用のガイド一体型創外固定器の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4304321B2 (ja) | 2009-07-29 |
JPWO2007139031A1 (ja) | 2009-10-08 |
CN101453959B (zh) | 2011-07-27 |
CN101453959A (zh) | 2009-06-10 |
KR20090027656A (ko) | 2009-03-17 |
WO2007138722A1 (ja) | 2007-12-06 |
KR101377734B1 (ko) | 2014-03-21 |
US8366710B2 (en) | 2013-02-05 |
WO2007138659A1 (ja) | 2007-12-06 |
EP2030583A4 (en) | 2012-01-04 |
EP2030583A1 (en) | 2009-03-04 |
US20090287212A1 (en) | 2009-11-19 |
EP2030583B1 (en) | 2015-08-26 |
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