Abstract:
A surgery device assembly for minimally invasive spinal surgery is provided. The surgery device assembly includes a plurality of pedicle screws, a least one parallel bridge, a guiding device and an elongated rod. The plurality of pedicle screws are drilled into the corresponding spine respectively. Each pedicle screw is clamped by the corresponding parallel bridge in order to keep the cannulas parallel to each other. The top of the sidewalls is a U-type trough in order to adjust a direction of each pedicle screw to the same way. The proper shape of the elongated rod is bent according to the curve formed with the U-type grooves of pedicle screws. The elongated rod is seated in trough portion of each pedicle screw by puncturing the guiding device. The elongated rod is then secured by nuts in order to fix a bony structure.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims priority from Taiwan Patent Application No. 104123956 and No. 104123957, filed on Jul. 24, 2015, in the Taiwan Intellectual Property Office, the content of which is hereby incorporated by reference in their entirety for all purposes. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    This application relates to a medical apparatus, and more particularly, to a pedicle screw assembly feasible for the percutaneous minimal invasive spinal fusion surgery. 
         [0004]    2. Description of the Related Art 
         [0005]    As far as the conventional spinal fusion surgery is concerned, the surgeon has to cut the patient&#39;s open wound with a larger area so as to obtain a better visual field to determine the position where the pedicle screw is implanted in and a direction of the recess of a U-type trough. However, an oversized wound may damage to the surrounding muscle and tissue, resulting a longer recovery time. As to the percutaneous minimal invasive spinal fusion surgery, it takes only a few hours to complete the entire surgery. Because the pedicle screw is drilled into the target spine, the U-type trough for accommodating the pedicle screw is put into the deeper tissue, so that the surgeon cannot instinctively observe the relative position therebetween other than relying on the clinical experience and tentative disposition. Consequently, the uncertainty occurred in process of the surgery is increased. 
         [0006]    In addition, there are guiding devices provided to increase the precision and accuracy when the elongated rod is applied to penetrate through, the technical problem of the parallel arrangement of the pedicle screw is not effectively resolved. So, the current guiding devices are only designed to aim at puncturing and guiding two adjacent pedicle screws. Once there are numerous adjacent vertebral bodies needed to be fused, it has to apply the surgical navigation system. The surgical navigation system, however, is of complicated operation and costs a lot, and it is therefore hard to be applied extensively. 
         [0007]    Besides, the convention short-tail pedicle screw has to cooperate with the other guiding devices such as a guiding sleeve in the spinal operation, but using too many medical devices may take lots of time. Consequently, when long-tail pedicle screw came out, the guiding passageway formed on two sides of the long-tail pedicle screw is applied to replace the guiding sleeve. 
         [0008]    However, the current open type long-tail pedicle screw still has certain technical problems when being used. For example, the curve of the spine cannot be observed instinctively, resulting in an inconsistent curve connection between the elongated rod and the target spine. Moreover, whether the position among each pedicle screw aligns or not may also affect the elongated rod to penetrate. The foregoing technical problems can be resolved according to the surgeon&#39;s clinical experience, though, the medical apparatus, which is easy to be used and portable, may further simplify the surgery procedure so as to shorten the operation. 
         [0009]    As a result, the inventor of the present disclosure has designed a surgery device assembly for minimally invasive spinal surgery to resolve the foregoing technical problems and to aim at improving the shortcomings of the current technique, so as to promote the industrial practicability. 
       SUMMARY OF THE INVENTION 
       [0010]    In view of the aforementioned technical problems, the objective of the present disclosure provides a surgery device assembly for minimally invasive spinal surgery. The surgery device assembly includes a plurality of pedicle screws, a least one parallel bridge, a puncture guiding device and an elongated rod. 
         [0011]    In view of the aforementioned technical problems, the objective of the present disclosure provides a pedicle screw, and the surgeon can apply a U-type simulation groove disposed at the end of the pedicle screw to directly determine the relative position among each spine. In addition, the relative relationship among the U-type simulation groove of each pedicle screw is applied to compare with a curve of the elongated rod. 
         [0012]    In view of the aforementioned technical problems, the objective of the present disclosure further provides a pedicle screw which applies at least two sets of clamping units to respectively clamp the corresponding pedicle screw, and a parallel bridge is applied to keep parallel among each pedicle screw. Besides, a small gap between the clamping unit and the long sidewalls of the pedicle screw is provided to adjust a direction of a U-type simulation groove of the pedicle screw. 
         [0013]    In view of the aforementioned technical problems, the objective of the present disclosure provides a puncture guiding device. Before the puncture guiding device is used, each of adjusting pedicle screws is respectively adjusted on the same parallel plane, a curve of an elongated rod is adjusted to match the adjusted pedicle screw, and then a tip of the rod having a cone is disposed on the puncture guiding device to penetrate a trough portion of the pedicle screw to peel off the deep muscle tissue so as to form an trough passageway for the elongated rod, such that the elongated rod can be seated in the adequate position rapidly. 
         [0014]    In view of the aforementioned technical problems, the objective of the present disclosure provides a puncture guiding device which can adjust a first adjusting unit of a guiding sleeve and a second adjusting unit of a swing rod according to the change of a curve of the elongated rod, so that the relative position can be adjusted to enable the elongated rod to move around the pivot as a circular arc. 
         [0015]    In view of the aforementioned technical problems, the objective of the present disclosure further provides a puncture guiding device which applies the simple members to penetrate numerous sections of spines, so that the cost of the related apparatuses can be effectively lowered. In addition, the puncture guiding device of the present disclosure can cooperate with the minimal invasive surgery to reduce the probability of complications. 
         [0016]    In view of the aforementioned technical problems, the objective of the present disclosure further provides a surgery device assembly for minimally invasive spinal surgery, and the improved surgery device assembly resolves the complicated use of the operating problem in process of the surgery. The surgery device assembly also applies the simple members to penetrate numerous sections of spines, so that the cost of the related devices can be effectively lowered. In addition, the puncture guiding device of the present disclosure can cooperate with the minimal invasive surgery to reduce the probability of having complications. 
         [0017]    In accordance with the aforementioned objectives, the present disclosure provides a pedicle screw which may include a bone screw body, a trough portion, and a simulation portion. The bone screw body may be a self-tapping screw thread so as to be drilled into the spine. The trough portion may be applied to accommodate an elongated rod, and may include a bottom base and a U-type trough. The bottom base may be disposed with a through hole in which the bone screw body punctures. Two sides of the U-type trough respectively may extend along two long sidewalls of the pedicle screw. The outside wall of the U-type trough may have a circular recess, and the inside wall of the U-type trough have an internal screw thread structure. The simulation portion may have a U-type simulation groove, the simulation portion may be disposed on upper margins of the two long sidewalls, and an opening of the U-type simulation groove and an opening of the U-type trough may be in the same direction. The trough portion and the simulation portion may be integral in a body. 
         [0018]    Preferably, the internal screw tread structure may extend to two sides of the circular recess. 
         [0019]    Preferably, the internal screw thread structure may have a square thread form and a reverse screw thread form where the internal screw thread structure is screwed. 
         [0020]    In accordance with the aforementioned objectives, the present disclosure further provides a parallel bridge adapted to a pedicle screw which may include two sets of clamping units and a constrained pivot joint. The two sets of clamping units respectively may clamp a pedicle screw. Each clamping unit may include a fastening arm, a movable arm, and a spring. The fastening arm and the movable arm may form an aperture to hold the long sidewalls of the pedicle screw, and the spring may be disposed between the fastening arm and the movable arm. The constrained pivot joint may be connected to the fastening arm of each clamping unit, and the constrained pivot joint may limit a degree of freedom of the fastening arm to make a U-type simulation groove of each pedicle screw on the same parallel plane. 
         [0021]    Preferably, a thickness between the fastening arm and the movable arm may be greater than 0.5 cm. 
         [0022]    Preferably, the parallel bridge may further include a third clamping unit holding a third pedicle screw. The third clamping unit may be connected to the parallel bridge by a linkage so as to keep parallel between the U-type trough of the third pedicle screw and the U-type trough of one of the two adjacent pedicle screws. 
         [0023]    Preferably, a gap between the aperture and the long sidewalls of the pedicle screw is provided to adjust a direction of the U-type simulation groove of the pedicle screw. 
         [0024]    In accordance with aforementioned objectives, the present disclosure provides a puncture guiding device punctured a pedicle screw to guide an elongated rod to perform the percutaneous minimal invasive spinal fusion surgery, including: a drawbar, one end of the drawbar disposed with a handle and the other end of the drawbar having a screw thread structure, and the screw thread structure screwed to the pedicle screw to fix a position; a guiding sleeve being a hollow tube in which the drawbar is penetrated and fixed, the guiding sleeve further including a connecting portion and a pivot, and the connecting portion tabling with two sidewalls of the pedicle screw; a guiding arm including a swing rod, an arcuate bar, and a flexible wire, one end of the swing rod connected to the pivot joint and the other end of the swing rod connected to the arcuate bar, and a tunnel disposed inside the arcuate bar to accommodate the flexible wire, and a clamping portion disposed at an end of the guiding arm to grip the elongated rod; wherein a radius of curve of the elongated rod matches a relative distance between the clamping portion and the pivot so as to guide the elongated rod to move around the pivot as a circular arc. 
         [0025]    Preferably, the guiding sleeve may further include a first adjusting unit for adjusting a relative position between the pivot and the guiding sleeve. 
         [0026]    Preferably, the first adjusting unit may include a plurality of clamping grooves and a positioning member, and the positioning member may be abutted against any of the plurality of clamping grooves. 
         [0027]    Preferably, the guiding sleeve may further include a clamping ring sheathed to the clamping portion to avoid the clamping portion loosening. 
         [0028]    Preferably, the guiding arm may further include a second adjusting unit for adjusting a relative distance between the clamping portion and the pivot. 
         [0029]    Preferably, the second adjusting unit may include a plurality of positioning grooves and an adjusting member, and the adjusting member may be abutted against any of the plurality of positioning grooves. 
         [0030]    Preferably, the connecting portion may be a tenon structure, and the tenon structure may table with a fastening end of the pedicle screw to avoid the guiding sleeve rotating or displacing. 
         [0031]    Preferably, the guiding arm may further include a control portion and the control portion may be abutted against the flexible wire, such that the flexible wire moves along the tunnels to release the elongated rod from the clamping portion. 
         [0032]    Preferably, the clamping portion may be a tapered hole, a spring clip, a spring sheet set, or a rapid joint. 
         [0033]    In accordance with the aforementioned objectives, the present disclosure further provides a surgery device assembly for minimally invasive spinal surgery. The surgery device assembly may include a plurality of pedicle screws, at least one parallel bridge, an elongated rod and a puncture guiding device. The plurality of pedicle screws are drilled into the corresponding spine respectively. Each pedicle screw may be clamped by the corresponding parallel bridge to adjust a direction of the U-type simulation groove of each pedicle screw to the same plane. The curve of the elongated rod may be adjusted according to relative height among the U-type simulation groove of each pedicle screw. The elongated rod may be disposed in the trough portion of each pedicle screw by the puncture guiding device, thereby limiting a relative distance of the corresponding spine. 
         [0034]    According to the aforementioned description, besides the preceding advantages, the present disclosure may be able to enable store obtaining real-time price of merchandise by means of a computer system reading barcode, the consumer may also realize the real-time price of the merchandise roughly so as to become an effective media among store, merchandise and consumer. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0035]      FIG. 1  is a schematic diagram of a pedicle screw of the present disclosure. 
           [0036]      FIG. 2  is the first schematic diagram of a parallel bridge of the present disclosure. 
           [0037]      FIG. 3  is the second schematic diagram of a parallel bridge of the present disclosure. 
           [0038]      FIG. 4  is the third schematic diagram of a parallel bridge of the present disclosure. 
           [0039]      FIG. 5  is a schematic diagram of a puncture guiding device of the present disclosure. 
           [0040]      FIG. 6  is a schematic diagram of a first adjusting unit and a second adjusting unit of the puncture guiding device of the present disclosure. 
           [0041]      FIG. 7  is a schematic diagram of a clamping ring of the puncture guiding device of the present disclosure. 
           [0042]      FIG. 8  is a schematic diagram of a surgery device assembly for minimally invasive spinal surgery. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0043]    Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present disclosure pertains can realize the present disclosure. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present disclosure. 
         [0044]    Please refer to  FIG. 1 , as shown in the figure, a pedicle screw  100  includes a bone screw body  110 , a trough portion  120 , and a simulation portion  130 . The bone screw body  110 , which is a self-tapping screw thread designed with a hollow guiding hole, is drilled on a target spine by a guiding needle. The trough portion  120  is applied to accommodate an elongated rod, and includes a bottom base  121  and a U-type trough  122 . The bottom base  121  is disposed with a through hole  1215  in which the bone screw body  110  fastened. In practice, the bone screw body  110  and the trough portion  120  are connected to each other by a ball-and-socket structure, facilitating them to deflect with a certain angle. 
         [0045]    Two sides of the U-type trough  122  of the trough portion  120  respectively extend upward along two long sidewalls  1225  to form a guiding passageway which enables to accommodate the other surgical instruments passing therethrough. The U-type trough  122  is further disposed with a circular recess  1221 . One side of the circular recess  1221  has an internal screw thread structure  1222  adjacent to the U-type trough  122 , as shown in part B of  FIG. 1 . Preferably, the internal screw thread structure  1222  extends to two sides of the circular recess  1221  to increase the number of thread to enhance the locking accuracy when the nut is fastened into the thread structure, and to lift the sunken vertebral body, as shown in part C of  FIG. 1 . In practice, the internal screw thread structure  1222  can be designed as a square thread form and having a reverse screw thread where the internal screw thread structure  1222  is screwed to enhance the coupling strength when the nut member is fastened, such that it can avoid the elongated rod loosened. 
         [0046]    The simulation portion  130  is disposed on upper margins of the two long sidewalls  1225  and has a U-type simulation groove  131 . The U-type simulation groove  131  and the U-type trough  122  have the same direction with respect to the opening, facilitating the clinical personnel to drill the pedicle screw  100  into the U-type trough  122  disposed on the patient&#39;s spine instinctively according to the opening direction of the U-type simulation groove  131 . In practice, the simulation portion  130  and the trough portion  120  may be integral in a body or connected by assembling. If the simulation portion  130  and the trough portion  120  are integral in a body, it is most conventionally to mill the U-type trough  122  and then to process the U-type simulation groove  131  at the simulation portion  130 . 
         [0047]    Please refer to  FIG. 2  which is the first schematic diagram of a parallel bridge of the present disclosure. As shown in the figure, a parallel bridge  200  includes two sets of clamping units  210  and a constrained pivot joint  220 . Each clamping unit  210  includes a fastening arm  211 , a movable arm  212 , and a spring  213 . The fastening arm  211  and the movable arm  212  form an aperture  215  to hold the long sidewalls of the pedicle screw  100 . The spring  213  is disposed between a rear end of the fastening arm  211  and a rear end of the movable arm  212 , wherein a thickness between the fastening arm  211  and the movable arm  212  has to be greater than 0.5 cm so as to increase the contact surface. The constrained pivot joint  220  is connected to the fastening arm  211  of the clamping units  210 . The constrained pivot joint  220  limits the movement between long sidewalls  1225  of the pedicle screw  100  which is clamped by two fastening arms  211 , so as to further correct two U-type simulation grooves  131  of two pedicle screws  100  to facilitate them to be the same parallel plane. In practice, the openings are in the same direction and align to each other. However, it shall be not limited thereto, and a slight deviation without affecting the entire puncture steps is acceptable. 
         [0048]    In practice, when the pedicle screw  100  is drilled into the spine, the flexibility of the human tissue may lead the pedicle screw  100  to produce the inclined angle, and the parallel bridge  200  is therefore applied to clamp the pedicle screw  100 . The clamping unit  210 , which has been adjusted parallel thereof, clamps inclined the pedicle screw  100  to maintain its parallel, and then a small clamping gap between the aperture  215  and the pedicle screw  100  is applied to facilitate the surgeon to manually adjust the direction of the U-type trough  122  of the pedicle screw  100 . 
         [0049]    Please refer to  FIG. 3  which is the second schematic diagram of a parallel bridge of the present disclosure. When numerous sections of spines have to be performed the spinal fusion surgery, a plurality of pedicle screws  100  are respectively drilled into the spines. Here, the parallel of the pedicle screw  100  plays a crucial role in terms of the success rate of the operation. When the target spines are adjacent to one another, a plurality of parallel bridges  200  are applied to clamp these target spines sequentially. By arranging the plurality of parallel bridges  200  alternating upward and downward, it can ensure the parallel of each pedicle screw  100 . In practice, an amount of the parallel bridges  200  can be increased or decreased according to the actual requirements. 
         [0050]    Please refer to  FIG. 4  which is the third schematic diagram of a parallel bridge of the present disclosure. When two targeting spines have a farther distance, the parallel bridge  200  is applied to clamp the pedicle screw  100 , and then a third clamping unit  230  is applied to clamp a third pedicle screw  232 . Afterwards, a linkage  231 , which is connected to the parallel bridge  200 , is applied to manually adjust the relative position among each pedicle screw  100 . By means of the parallel bridge  200  of the present disclosure, opening direction of the U-type simulation groove  131  of each pedicle screw  100  is capable of being adjusted to the same parallel plane to resolve the conventional technical problem concerning that the parallel interpretation has to be determined according the surgeon&#39;s clinical experience and the actual operation situation. As a result, when the elongated rod is applied to puncture, the precision and accuracy can be promoted. 
         [0051]    Please refer to  FIG. 1  and  FIG. 5  to  FIG. 8  together. As shown in the figures, a puncture guiding device  300  is sheathed and fixed to a pedicle screw  100  to guide an elongated rod  400  to perform the percutaneous minimal invasive spinal fusion surgery. The puncture guiding device  300  includes a drawbar  310 , a guiding sleeve  320 , a guiding arm  330  and a clamping portion  340 . One end of the drawbar  310  has a handle  311 , and the handle  311  can be designed as T-shape or L-shape to benefit the surgeon from the operation. The other end of the drawbar  310  has a screw thread structure  312 , and the screw thread structure  312  is screwed inside an internal screw thread structure  1222  of the pedicle screw  100  to fix and locate the drawbar  310 . 
         [0052]    The guiding sleeve  320  is a hollow tube and its diameter is greater than the drawbar  310 , so that the drawbar  310  can be sheathed and fixed therein. The guiding sleeve  320  further includes a connecting portion  321  and a pivot  322 . A tenon structure  3211  of the connecting portion  321  tables with two sidewalls of the pedicle screw  100  or a shape of a simulation portion of the pedicle screw  100  to avoid the guiding sleeve  320  producing rotation or displacement. In practice, the tenon structure  3211  of the connecting portion  321  can be designed as single or in pairs. In addition, the guiding sleeve  320  further includes a clamping ring  323 . When the tenon structure  3211  is clamped to the two sidewalls of the pedicle screw  100  or the shape of the simulation portion of the pedicle screw  100 , the clamping ring  323  is moved downward to limit the movement of the connecting portion  321  and to avoid the connecting portion  321  loosening, such that a relative position between the pedicle screw  100  and the guiding sleeve  320  can be fixed firmly. 
         [0053]    To be precise, the guiding sleeve  320  further includes a first adjusting unit  325  for adjusting a relative position between the guiding sleeve  320  and the pivot  322 . The first adjusting unit  325  includes a plurality of clamping grooves  3251  and positioning members  3252 . The positioning members  3252  are abutted against any of the clamping grooves  3251 . The clamping grooves  3251  are the structural feature on the guiding sleeve  320  and can be a circular distribution or a local arrangement. The positioning members  3252  are the members for positioning and adjusting such as socket set screws, adjusting bolts, positioning pins, and so on. When adjusting the position of the pivot  322 , the positioning members  3252  are reversely screwed to facilitate the pivot  322  being adjusted to the desired height smoothly, and then the positioning members  3252  are screwed to fix the pivot  322  on the position of the guiding sleeve  320 . 
         [0054]    The guiding arm  330  includes a swing bar  331 , an arcuate bar  332  and a flexible wire  333 . One end of the swing bar  331  is connected to two sides of the pivot  322  by a U-type linkage, facilitating the swing bar  331  to circle the pivot  322 . The arcuate bar  332  is connected to the other end of the swing bar  331 , and tunnels  3321  are disposed inside the arcuate bar  332  and have the same curve as the arcuate bar  332  so as to accommodate the flexible wire  333 . Furthermore, the guiding arm  330  further includes a second adjusting unit  335  to adjust a relative position between the clamping portion  340  and the pivot  322 . The second adjusting unit  335  includes a plurality of positioning grooves  3351  and adjusting members  3352 . The positioning grooves  3351  are disposed on the swing bar  331 , and the adjusting members  3352  are abutted against any of the positioning grooves  3351 . The adjusting members  3352  are the members for positioning and adjusting such as socket set screws, adjusting bolts, positioning pins, and so on. 
         [0055]    The clamping portion  340  is disposed at the end of the guiding arm  330  to clamp the elongated rod  400 . The radius of curve of the elongated rod  400  matches the relative distance between the clamping portion  340  and the pivot  322 , such that the elongated rod  400  circles the pivot  322  in favor of the elongated rod  400  successfully penetrating the trough portion of the pedicle screw  100 . In practice, the clamping portion  340  can be a Morse taper hole having the self-locking function, a spring clip, a spring sheet set, or a rapid joint. 
         [0056]    To be more precise, the guiding arm  330  includes a control portion  338 . The control portion  338  is disposed on the arcuate bar  332  to be connected to the flexible wire  333 . When the control portion  338  actuates, the flexible wire  333  moves forward along the tunnels  321  to push the elongated rod  400  away from the clamping portion  340 , such that the purpose of decoupling the elongated rod  400  is achieved. 
         [0057]    For example, when three adjacent vertebral body are performed the spinal fusion surgery, a guide-pin is applied to show starting point of the target vertebral body sequentially, and then each pedicle screw  100  is punctured respectively. On account of the flexibility of the human tissues such as skin, muscle, and so on, each pedicle screw  100  may produce the inclined angle. Therefore, each parallel bridge  200  is applied to adjust the parallelism of respectively pedicle screws  100 . Afterwards, the curve of the elongated rod  400  is gradually adjusted according to the relative height among each spine, facilitating the elongated rod  400  to match the curve of each spine. When the curve of the elongated rod  400  is adjusted, the drawbar  310  of the puncture guiding device  300  is screwed in an adequate position where the pedicle screw  100  is fastened, and then the connecting portion  312  are fastened with the sidewall of the U-type trough  122 of the pedicle screw  100 . The U-type trough of each pedicle screw  100  is respectively adjusted on the same parallel plane. Afterwards, the relative position between the first adjusting unit  325  and the second adjusting unit  335  is adjusted adequately to facilitate the guiding arm  330  to move around the pivot  322  as a circular arc. 
         [0058]    Besides, the guiding arm  330  is lifting upward the pivot  322  to increase the operating space of the apparatus. The elongated rod is gripped by the clamping portion  340 , and the puncture guiding device  300  is applied to tentatively penetrate the trough portion  120  of the pedicle screw  100 . Next, the cone is applied to peel the adjacent muscle tissue to form a trough passageway which can accommodate the elongated rod  400 . When an adequate trough passageway is prepared, the elongated rod  400  can be placed in the adequate position rapidly. 
         [0059]    When the elongated rod  400  is guided to the trough portion of each pedicle screw  100 , the surgeon operates the control portion  338  of the guiding arm  330  to push the elongated rod  400  to separate from the clamping portion  340 , so that the elongated rod  400  is seated in the trough portion of each pedicle screw  100 . Afterwards, the connection relationship between the puncture guiding device  300  and the pedicle screw  100  is released via a reverse operation, and the nut members of the pedicle screw  100  are sequentially fastened in the internal screw thread structure of trough portion of the pedicle screw  100  to secure the elongated rod  400  in order to stabilize the bony structure. Finally, the long sidewalls of the pedicle screw  100  are cut and removed, and then the wound is sewed to complete the entire operating procedure. 
         [0060]    Please refer to  FIG. 1 ,  FIG. 5  and  FIG. 8  together. As shown in the figures, the surgery device assembly  500  for minimally invasive spinal surgery includes a plurality of pedicle screws  100 , at least one parallel bridge  200 , an elongated rod  400  and a puncture guiding device  300 . The present disclosure aims at improving the conventional long-tail pedicle screw. The pedicle screws  100  are made by improving the conventional long-tail pedicle screw. By means of the simulation portion, the surgeon is able to observe instinctively the relative position among the target spines so as to adjust the curve of the elongated rod. In addition, by means of the parallel bridge, a plurality of pedicle screws can be held on the same parallel plane in favor of the penetrate by the puncture guiding device  300 , and setting of the elongated rod  400  so as to increase efficiency and the success rate of the surgery. 
         [0061]    The puncture guiding device  300  of the present disclosure applies the connecting portion  321  to firmly ensure the connection relationship between the puncture guiding device  300  and the pedicle screw  100 . In addition, by cooperating with the parallel bridge  200 , the U-type trough  122  of each pedicle screw  100  can be maintained on the same parallel plane in favor of the follow-up puncture steps. In practice, the minor deviation of the parallel without affecting the follow-up puncture steps is acceptable. Adjusting the relative distance among each member by adjusting the first adjusting unit  325  and the second adjusting unit  335  facilitates the guiding arm  330  to move along the arc locus. 
         [0062]    The surgery device assembly of the present disclosure is capable of assisting the surgeon to perform the percutaneous minimal invasive spinal fusion surgery more precisely without the other complicated operating procedures, so that the entire operating time is shortened, the probability of having complications is decreased, and the cost of the related apparatus is reduced effectively. 
         [0063]    While the means of specific embodiments in present disclosure has been described by reference drawings, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the disclosure set forth in the claims. The modifications and variations should in a range limited by the specification of the present disclosure.