Abstract:
The present invention relates to extracorporeal fixing device for a bone fracture and soft tissue trauma caused by bone fracture, and in particular, to the device which can be easily and versatilely installed depending on the condition of fractured bone and destructed soft tissue and allows partial modification without dismantling the entire structure and also keep stable fixating condition at the same time.  
     The present invention discloses an extracorporeal fixing device for a bone fracture including a pair of ring members through which an object bone structure pass in a longitudinal direction of the object bone structure and are spaced apart by a certain distance, a rod which is installed between the ring members and is adapted to setting a position of each member, a pair of ring-rod fixing clamps which are engaged on the certain position of each ring member and rotatably fix both ends of the rod with respect to each ring member, a fixing pin which is movably engaged to the rod and fixes a fracture portion, and a rod-pin fixing clamp which movably fixes the fixing pin to the rod.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to an extracorporeal fixing device for a bone fracture and soft tissue trauma caused by bone fracture, and in particular, to the device which can be easily and versatilely installed depending on the condition of the fractured bone and destructed soft tissue and allows partial modification without dismantling the entire structure.  
           [0003]    2. Description of Prior Art  
           [0004]    External fixation devices for bone fracture can be classified into 3 groups which are simple type, clamp type and ring type, respectively.  
           [0005]    The simple type external fixator, each clamp engaging single fixation pin to the external frame of interconnected rod, can be installed versatilely depending on the condition of soft tissue, but it is difficult to be installed on the fractured limb. The demerit of the simple external fixator is that the fixated region lacks stability because of its unilateral fixation. In particular, when the fractured bone segments are short, the distance between the fixation pins become too short to assure adequate stability.  
           [0006]    The clamp type external fixator, each clamp engaging a plurality of fixation pins to the external frame of interconnected rod, doesn&#39;t allow the directional modification of the fixation pins. Same as the simple external fixator, its single external frame of interconnected rod can not assure adequate stability.  
           [0007]    By contrast, the ring type external fixator, often referred to as the Ilizarov External Fixator, is the most stable external fixator. The development of the Ilizarov external fixator motivated the organization of the distraction osteogenesis. The distraction Osteogenesis, an epochal method in orthopedic surgery, resolves many deformities which seemed inoperable before. That is, extremity length discrepancies resulted from extensive range bone defects caused by trauma or infection and from congenital pathologies were inoperable or difficult to correct before, the distraction osteogenesis can solve those problem.  
           [0008]    Conventional Ilizarov external fixator as shown in FIG. 1 includes three basic elements: a plurality of ring members( 1 ) disposed coaxially about the bone segments to be fixated; transverse wires( 2 ) for fixating the bone segments to the ring members; and 3 or 4 interconnected rods( 3 ) being engaged to the ring members( 1 ) at regular intervals of 90° or 120°. At this occasion, continuous radiation is required during the installation to monitor the position of each transverse wire( 2 ) so that the each wire is disposed in the accurate site of bone segments to be fixated.  
           [0009]    Above mentioned Ilizarov External Fixator, though widely used as a unique method of correcting the limb deformities, has problems in treating traumatized bone as follows.  
           [0010]    First, due to the regular interval (90° or 120°) and fixed posture of the interconnected rod, it is difficult to obtain sufficient space necessary for treating soft tissue injury accompanied by the bone fracture.  
           [0011]    Second, fixating of the fractured bone only with the transverse wires increases the possibility of blood vessel injury and neuro trauma. Also, perforation of muscle can cause pain, discomfort and subsequently joint stiffness which lead to bad prognosis to the patients who should wear the device for a long time.  
           [0012]    Third, once the fixator is installed, the ring members cannot be detached from the interconnected rods. Therefore each of the ring members and rods should be disassembled and then reconstructed when additional modification is necessary.  
           [0013]    Fourth, there is a risk of overexposure to radiation because image intensifier(C-arm) should be used from start to finish for accurate installation required on account of the difficulties in adjustment after installation.  
           [0014]    Finally, since it is incompatible with other fixators, the disassembly and reconstruction of each member are needed for the patients putting on other fixator.  
           [0015]    U.S. Pat. No. 5,630,814 describes a similar external bone fixation device with FIG. 1. which also has above mentioned problems; lack of required space for treating the soft tissue injury, complicated disassembly and reconstruction steps for additional modification, difficulties in adjustment after installation and the risk of overexposure to radiation  
           [0016]    Therefore, the present invention is designed for the provision of extracorporeal fixing device for a bone fracture which overcomes the above-discussed disadvantages of conventional bone fixation devices and can be easily installed depending on the condition of the fractured bone and destructed soft tissue without regional restriction, also allows multi-directional modification and transformation, easy addition and disassembly and has the firm fixing strength of conventional Ilizarov external fixator  
           [0017]    Also, another object of the present invention is the provision of extracorporeal fixing device for a bone fracture which allows tidy treated region and minimizes the behavior restriction of patient by operating optimal treatment using minimal components.  
         SUMMARY OF THE INVENTION  
         [0018]    An extracorporeal fixing device for a bone fracture according to the present invention includes a pair of ring members through which an object bone structure pass in a longitudinal direction of the object bone structure and are spaced apart by a certain distance, a rod which is installed between the ring members and is adapted to setting a position of each member, a pair of ring-rod fixing clamps which are engaged on the certain position of each ring member and rotatably fix both ends of the rod  20  with respect to each ring member, a fixing pin which is movably engaged to the rod and fixes a fracture portion, and a rod-pin fixing clamp which movably fixes the fixing pin to the rod.  
           [0019]    Also, a ring rod fixing clamp according to an embodiment of the present invention includes a ring fixing member which has one side being detachably engaged to the the ring member and the other side having more than at least one engaging hole, a first rod fixing member in which a through hole through which an end of the rod  20  passes through, is formed in a certain portion of the same, and threaded portions are formed in an upper and lower potion, and a lower threaded potion between the threaded portions passes through the engaging hole of the ring fixing member and is engaged by a nut, and a rod fixing piece which is implemented in such a manner that an upper threaded portion of a first rod fixing member passes through in an upper direction, and a front and back portion of the firs rod fixing member is surrounded, and a through hole corresponding to the through hole of the first rod fixing member is formed in a front and back portion contacting with a front and back surface of the first rod fixing member, for thereby fixing the rod to the through hole of the first rod fixing member by downwardly pressurizing the same based on a tightening force of the nut engaged to the upper threaded portion of the first rod fixing member.  
           [0020]    In succession, a rod-pin fixing clamp according to an embodiment of the present invention includes a pin fixing bolt which has a through hole through which a fixing pin passes vertically, second and third opposite rod fixing members in which one end of each of the same has a through hole through which a pin fixing bolt passes through in sequence, and an insertion groove into which an end of the rod is inserted, is formed in the opposite other end of the same, and a pin fixing piece which is installed between a head portion of the pin fixing bolt and the second rod fixing member and fixes the fixing pin to the through hole of the pin fixing bolt by pressurizing the fixing pin based on a tightening force of the nut engaged to the threaded portion of the pin fixing bolt, and includes a radial threaded portion being engaged with a radial threaded portion formed in the upper corresponding surface of the second rod fixing member and preventing a relative rotation.  
           [0021]    A ring-rod fixing clamp according to another embodiment of the present invention includes a ring fixing member which has one side being detachably engaged to said ring members, a rod-fixing bolt which has a head portion through which an end portion of the rod  20  passes vertically, a connection member in which a through hole through which the other end of the ring fixing member passes horizontally is formed in one side, and upper and lower corresponding surfaces which are extended from one side in the upper and lower directions are formed in the other side, and a through hole through which a rod fixing bolt passes vertically is formed in each corresponding surface, and a rod fixing piece which is installed between a head portion of the rod fixing bolt and the connection member and fixes the rod to the rod fixing bolt by pressurizing an end portion of the rod based on a tightening force of the nut engaged to the threaded portion of the rod fixing bolt which passes through the connection member, and includes a radial threaded portion being engaged with a radial threaded portion formed in the upper corresponding surface of the connection member and preventing a relative rotation.  
           [0022]    An extracorporeal fixing device for a bone fracture according to the other embodiment of the present invention further includes an assistant extracorporeal fixing device for a bone fracture which is movably fixed to the rod and fixes the back of hand and the top of foot.  
       
    
    
     BRIEF DESCRIPTION OF THE DRAWING  
       [0023]    [0023]FIG. 1 shows an elevational view of conventional external fixator for a bone fracture illustrated in operative association with a bone.  
         [0024]    [0024]FIG. 2 shows an elevational view of the extracorporeal fixing device for a bone fracture according to the first embodiment of the present invention illustrated in operative association with a bone.  
         [0025]    [0025]FIG. 3 shows a top view of the versatile circular rings illustrated in the FIG. 2  
         [0026]    [0026]FIG. 4 shows a perspective view of ring-rod fixing clamp illustrated in the FIG. 2  
         [0027]    [0027]FIG. 5 shows a sectional view of ring-rod fixing clamp illustrated in the FIG. 2 and FIG. 4  
         [0028]    [0028]FIG. 6 shows a sectional view of rod-pin fixing clamp illustrated in the FIG. 2  
         [0029]    [0029]FIG. 7 shows a sectional view of exploded rod-pin fixing clamp illustrated in the FIG. 2 and FIG. 6  
         [0030]    [0030]FIG. 8 shows a sectional view of rod-pin fixing clamp illustrated in the FIG. 2, FIG. 6 and FIG. 7.  
         [0031]    [0031]FIG. 9 shows a perspective view of a ring-rod fixing clamp according to the second embodiment of the present invention.  
         [0032]    [0032]FIG. 10 shows an exploded perspective view of the FIG. 9  
         [0033]    [0033]FIG. 11 shows an perspective view of a exploded rod-pin fixing clamp according to the third embodiment of the present invention.  
         [0034]    [0034]FIG. 12 shows an elevational view of the extracorporeal fixing device for a bone fracture according to the fourth embodiment of the present invention illustrated in operative association with a bone. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
     First Embodiment  
       [0035]    As shown in FIG. 2, an extracorporeal fixing device for a bone fracture according to an embodiment of the present invention includes a pair of distanced ring members  10  and  10 , a rod  20  installed between the ring members  10  and  10 , a pair of ring-rod fixing clamps  30  which rotatably fix both ends of the rod  20  with respect to each ring member  10 ,  10 , a fixing pin  40  which is movably engaged to the rod  20  and fixes a fracture portion, and a rod-pin fixing clamp  50  which movably fixes the fixing pin  40  to the rod  20 .  
         [0036]    As shown in FIGS. 2 and 3, the ring members  10  and  10  pass through which an object bone structure pass in a longitudinal direction of the object bone structure and are spaced apart by a certain distance and are fixed to the object bone structure by a wire  11 . In addition, the ring members  10  and  10  are implemented based on a combination of a plurality of circular rings  12  in which a plurality of engaging holes  12   a  are formed at a regular interval. Since each circular ring  12  surrounds a calf or femoral region during an operation, the sizes of the same are determined based on a maximum circumference of an operation portion. In general, each ring member  10 ,  10  is formed based on a combination of a plurality of circular rings. However, in the case of a small bone fracture, one circular ring may be used.  
         [0037]    At this time, each ring member  10 ,  10  is formed of stainless which is not rusted. In another embodiment of the present invention, the ring members  10  and  10  may be formed of a carbon steel which is light and has an excellent radiation permeability.  
         [0038]    The rod  20  is installed between the ring members  10  and  10  and is adapted to set a position of each member. The number of the rods  20  may be determined based on a fracture type or may not be used. The fixed position of the same is freely adjusted between the ring members  10  and  10  and are formed of a carbon steel which is light and has an excellent radiation permeability.  
         [0039]    As shown in FIGS. 4 and 5, each ring rod fixing clamp  30  includes a ring fixing member  31  which has one side passing through the engaging hole  12   a  of the ring member  10 ,  10  and engaged by a nut and the other side having more than at least one engaging hole  31   a , a first rod fixing member  32  in which a through hole  32   a  through which an end of the rod  20  passes through, is formed in a certain portion of the same, and threaded portions  32   b  and  32   c  are formed in an upper and lower potion, and a lower threaded potion  32   c  between the threaded portions  32   b  and  32   c  passes through the engaging hole  31   a  of the ring fixing member  31  and is engaged by a nut, and a rod fixing piece  33  which is implemented in such a manner that an upper threaded portion  32   b  of a first rod fixing member  32  passes through in an upper direction, and a front and back portion of the firs rod fixing member  32  is surrounded, and a through hole  33   a  corresponding to the through hole  32   a  of the first rod fixing member  32  is formed in a front and back portion contacting with a front and back surface of the first rod fixing member  32 , for thereby fixing the rod  20  to the through hole  32   a  of the first rod fixing member  32  by downwardly pressurizing the same based on a tightening force of the nut engaged to the upper threaded portion  32   b  of the first rod fixing member  32 .  
         [0040]    In the thusly constituted ring rod fixing clamp  30 , the rod  20  is escaped from the first rod fixing member  32  by removing the tightening force of the nut engaged to the upper threaded portion  32   b  of the first rod fixing member  32 . The first rod fixing member  32  is escaped from the ring fixing member  31  or becomes a relatively rotatable state by removing the tightening force of the nut engaged to the low threaded portion  32   c  of the first rod fixing member  32 . In addition, the ring fixing member  31  is escaped from the ring member  10 ,  10  or becomes a rotatable state by removing the tightening force of the nut engaged to one side of the ring fixing member  31 . Therefore, it is possible to freely change the position of the rod  20  based on the fracture state in a state that the ring member  10 ,  10  is fixed to an object bone structure.  
         [0041]    As shown in FIG. 2, the fixing pin  40  is movably fixed to the rod  20 . One end of the same is fixed to the rod-pin fixing clamp  50 , and the other end of the same is engaged to the bone structure. At this time, a threaded portion is formed in the other end of the fixing pin  40  for thereby preventing an easier escape from the bone structure. The above threaded portion is fully engaged to the bone structure for preventing a bacteria infection in a skin which may be easily damaged when the threaded portion repeatedly touches the skin because the threaded portion is exposed to the outside. In addition, the threaded portion of the fixing pin  40  has various lengths and diameters which are determined based on a patients age and the size of bone structure. The number of the fixing pin  40  is determined based on the state of fracture and is omitted. The diameter of one end of the same may be the same as the diameter of a thread formed in the other end of the same or may be larger than the same, so that the strength is increased.  
         [0042]    As shown in FIGS. 6 through 8, the rod-pin fixing clamp  50  is adapted to movably fix the fixing pin  40  to the rod  20  and includes a pin fixing bolt  51  which has a through hole  51   a  through which a fixing pin  40  passes vertically, second and third opposite fixing members  52  and  52  in which one end of each of the same has a through hole  52   a  through which a threaded portion of a pin fixing bolt  51  passes through in sequence, and an insertion groove  52   b  into which an end of the rod  20  is inserted, is formed in the opposite other end of the same, a pin fixing piece  53  which is installed between a head portion of the pin fixing bolt  15  and the second rod fixing member  52  and which includes a rod insertion groove  53   a  into which an end portion of the rod  20  is inserted, for thereby fixing the fixing pin  40  to the through hole  51   a  of the pin fixing bolt  51  by pressurizing the fixing pin  40  based on a tightening force of the nut engaged to the threaded portion of the pin fixing bolt  51 , and a pair of escape prevention rod  54  which has one end passing through a groove  52   c  formed in both sides of the through hole  52   a  of the third rod fixing member  52  and being integrally engaged to an opposite surface of the second rod fixing member  52 , and the other end in which an engaging portion  54   a  is formed for preventing an escape of the third rod fixing member  52  in such a manner that the engaging portion  54   a  is caught by a bottom of the groove  52   c  formed in both sides of the through hole  52   a  of the third rod fixing member  52 .  
         [0043]    At this time, the radial threads are formed in the contact surface contacting with the second rod fixing member  52  and the pin fixing piece  53  and are engaged each other. When the rod  20  is fixed to the through hole  51   a  of the pin fixing bolt  51 , a relative rotation of the second rod fixing member  52  and the pin fixing piece  53  is prevented. In addition, a rotation prevention groove  51   b  is formed in a threaded portion of the pin fixing bolt  51  in a longitudinal direction. A protrusion  53   c  which is inserted into the rotation prevention groove  51   b  is formed in an inner circumference of the through hole  53   b  of the pin fixing piece  53 , so that a relative rotation of the pin fixing piece  51   b  is prevented with respect to the pin fixing bolt  51 . In addition, an escape of the third rod fixing member  52  is prevented by an escape prevention rod  54 . Since a pair of escape prevention rods  54  are provided in both sides of the through hole  52   a  of the third rod fixing member  52 , a relative rotation is prevented with respect to the second rod fixing member  52 .  
         [0044]    Even when there is provided only one escape prevention rod  54 , it is possible to prevent a relative escape of the second and third rod members  52  and  52  and to prevent a relative rotation of the pin fixing bolt  51  passing through the through hole  52   a  of the second and third rod members  52  and  52  and a relative rotation of the second and third rod members  52  and  52 .  
         [0045]    The operation of an extracorporeal fixing device for a bone fracture according to an embodiment of the present invention will be described.  
         [0046]    First, the ring members  10  and  10  pass through an object bone structure and are spaced part at a certain interval and are fixed to an object bone structure, respectively, using multiple wires  11 . At this time, the ring members  10  and  10  may be additionally installed in the object bone structure based on the degree of the fracture of the fracture portion.  
         [0047]    After the ring members  10  and  10  are fixed to the object bone structure using multiple wires  11 , and the ring fixing member  31  of the ring-rod fixing clamp  30  is loosely engaged to the engaging hole  12   a  of each ring member  10 ,  10  using a nut. A tightening force of the nut engaged to the upper and lower threaded portions  32   b  and  32   c  of the first rod fixing member  32  is weakened, both ends of the rod  20  pass through the rod fixing piece  33  and the first rod fixing member  32 . Thereafter, the fracture portion is aligned with the fracture surface using the ring members  10  and  10  fixed to the object bone structure. In the above state, the fracture portion is stably fixed by the ring members  10  and  10  by tightening the nut adapted to fix the ring fixing member  31  to the ring members  10  and  10  and the nut engaged to the threaded portions  32   b  and  32   c  of the first rod fixing member  32 . At this time, more than rods  20  are preferably provided in order for the ring members  10  and  10  to stably fix the fracture portion.  
         [0048]    After the fracture portion of the object bone structure us fixed using the ring members  10  and  10  and the rod  20 , the fixing pin  40  is engaged to the fracture portion for thereby obtaining an additional fixed state. In order to engage the threaded portion of the fixing piece  40  to the fracture portion, the rod-pin fixing clamp  50  is loosely installed in the rod  20 , and the fixing pin  40  passes through the through hole  51   a  of the pin fixing bolt  51  for thereby engaging the threaded portion to the fracture portion, so that the fixing pin  40  and the rod-pin fixing clamp  50  are stably fixed by tightening the nut engaged to the threaded portion of the pin fixing bolt  51 .  
         [0049]    After the fracture portion of the object bone structure is accurately engaged using the ring member  10 ,  10  the rod  20  and the fixing pin  40 , in the case that the fixed position of the rod  20  is changed for an external wound therapy, the fixing pin  40  positioned in the portion of the external wound therapy is removed, and the rod  20  is separated from the first rod fixing member  32  of the ring-rod fixing clamp  30 , and the ring fixing member  31  is separated from the ring member  10 ,  10 . Each ring-rod fixing clamp  30  is engaged to another position of each ring member  10 ,  10 , and then the separated rod  20  is fixed to the ring-rod fixing clamp  30 . In a state that the position of the ring member  10 ,  10  is maintained, it is possible to easily perform an external wound therapy by obtaining a space for the external wound therapy by simply changing the positions of the rod  20  and the ring-rod fixing clamp  30  and the fixing pin  40  and the rod-pin fixing clamp  50 .  
         [0050]    As described above, when the external wound therapy is performed, it is possible to obtain a space for the external wound therapy by simply changing the position of the rod  20  positioned in an external wound portion. In addition, it is possible to obtain an external wound therapy space by fully separating the rod  20  from the ring member  10 ,  10 . At this time, it is possible to maintain a desired stability using more than two rods  20  in each ring member  10 ,  10 .  
         [0051]    When a desired stability is obtained based on the above described engagement, the wire  11  which is adapted to fix the ring member  10 ,  10  to the object bone structure is removed, and the nut engaged to the threaded portions  32   b  and  32   c  formed in the upper and lower portions of the first rod fixing member  32  of the ring-rod fixing clamp  30  is loosened for thereby removing the ring member  10 ,  10  from the rod  20 , so that it is possible to implement a desired change based on a simple fixing device.  
       Second Embodiment  
       [0052]    As shown in FIGS. 9 and 10, the ring-rod fixing clamp  60  according to a second embodiment of the present invention includes a ring fixing member  61  which has one end passing through a ring member  10 ,  10  and being engaged by a nut, a rod-fixing bolt  62  which has a head portion through which an end portion of the rod  20  passes vertically, a connection member  63  in which a through hole  63   a  through which the other end of the ring fixing member  61  passes horizontally is formed in one side, and upper and lower corresponding surfaces  63   b  and  63   c  which are extended from one side in the upper and lower directions are formed in the other side, and a through hole  63   d  through which a rod fixing bolt  62  passes vertically is formed in each corresponding surface  63   b ,  63   c , and a radial threaded portion is formed in a surrounding portion of the entrance of the through hole  63   d  of the upper corresponding surface  63   b , and a fixing piece  64  which is installed between a head portion of the rod fixing bolt  62  and the connection member  63  and in which a rod insertion groove  64   a  into which a part of the rod  20  is inserted is formed in one end, for thereby fixing the rod  20  to the through hole  62   a  of the rod fixing bolt  62  by pressurizing an end portion of the rod  20  based on a tightening force of the nut engaged to the threaded portion of the rod fixing bolt  62  which passes through the connection member  63 .  
         [0053]    At this time, since a radial threaded portion engaged with a radial threaded portion formed in the upper corresponding surface  63   b  of the connection member  63  is formed in the other surface of the rod fixing piece  64 , in the rod fixing piece  64 , a relative rotation is prevented with respect to the upper corresponding surface  63   b  of the connection member  63 .  
         [0054]    Since a certain section from the threaded portion formed in one end of the ring fixing member  61  to the other end is formed in a hexagonal shape, the threaded portion passes through the engaging hole  12   a  of the ring member  10 ,  10 , and when engaging the nut, the hexagonal column section is fixed using a spanner, etc. In a state that the rotation of the ring fixing member  61  is prevented, it is possible to stably engage the ring fixing member  61  to the ring member  10 ,  10 . In addition, an escape prevention cap  61   a  is detachably engaged to the other end of the ring fixing member  61  for thereby preventing an escape of the connection member  63 .  
         [0055]    Since the operation of an extracorporeal fixing device for a bone fracture according to a second embodiment of the present invention is the same as the first embodiment of the present invention, the descriptions of the same will be omitted.  
       Third Embodiment  
       [0056]    As shown in FIG. 11, according to an extracorporeal fixing device for a bone fracture according to a third embodiment of the present invention, one side of the through hole  51   a  formed in the pin fixing bolt  51  of the rod-pin fixing clamp  50  is opened, so that the fixing pin  40  is inserted through the opened one side or is escaped therefrom. Therefore, in a state that the rod  20  and the fixing pin  40  are engaged, it is possible to implement an attaching and detaching operation of the rod-pin fixing clamp  50 .  
         [0057]    Since the operation of the third embodiment of the present invention is the same as the first embodiment of the present invention, the descriptions of the same will be omitted.  
       Fourth Embodiment  
       [0058]    As shown in FIG. 12, an extracorporeal fixing device for a bone fracture according to a fourth embodiment of the present invention further includes an assistant extracorporeal fixing device for a bone fracture  70  which includes a first assistant rod  71  having one end movably fixed to the rod  20  by the clamp, and a second assistant rod  73  in which an assistant fixing pin  72  engaged to the other end of the first assistant rod  71  by a clamp and is adapted to fix the back of hand and the top of foot.  
         [0059]    While the extracorporeal fixing device for a bone fracture according to the embodiments of the present invention is described referring to the attached figures as above, the present invention is not be to limited to only the specifically preferred embodiments and figures depicted herein and variations and modifications within the scope of the invention may occur. For example, the ring-rod fixing clamp according to the second embodiment of the present invention can be used as a rod-pin fixing clamp which engage fixing pin movably to the rod by modifying the diameter of the through hole. The fixing pin pass through the head portion of the rod fixing bolt instead of the rod and the rod pass through the through hole positioned in one side of connection member in stead of the ring fixing member. Like this way, each fastening clamp can be modified into the ring-rod fixing clamp or rod-pin fixing clamp.  
         [0060]    Such modification, alternatives, and equivalents may be included in the spirit and scope of invention as herein disclosed.  
         [0061]    The extracorporeal fixing device for a bone fracture, according to the embodiments of the present invention depicted above, can be easily installed depending on the condition of the fractured bone and destructed soft tissue without regional restriction, and allows multi-directional modification and transformation, easy addition and disassembly, and can assure the firm fixing strength of conventional Ilizarov fixator.  
         [0062]    Also, the space needed for the treatment of trauma can be easily obtained so that the treatment of trauma become more effective.  
         [0063]    In addition, continuous radiation is not required so that the risk of overexposure to radiation can be minimized. And the use of costly image intensifier is not required so that economical treatment can be made.  
         [0064]    What is better, it allows tidy treated region and minimize behavior restriction of patient by operating optimal treatment using minimal components.