Abstract:
A wound opener is provided. An operative field can be created through head/neck soft tissues for introducing the endoscopes and robotic surgical tools. An incision size can be properly adjusted. Thus, endoscopes, robotic arms or other devices can be smoothly introduced into the operative field to evaluate and treat lesions of head and neck soft tissues. Hence, the present invention facilitates surgical procedure, reduces wound size and effectively conceals wound to make it become invisible.

Description:
TECHNICAL FIELD OF THE INVENTION 
     The present invention relates to creating a wound opener for head and neck surgery; more particularly, relates to using an automatic mechanic wound opener to control the position and size of a wound for head and neck surgery and to introduce endoscopes or robotic arms through the wound to evaluate and further treat lesions of head and neck, where the surgery can be performed smoothly, the wound size can be reduced, and the wound can be effectively concealed and become invisible. 
     DESCRIPTION OF THE RELATED ART 
     Head/neck surgery is usually performed by an open operation. An incision made at head/neck and soft tissues are pulled outwardly for treating lesions. Hence, the traditional head/neck surgery may result in an obvious visible wound. Furthermore, the issues pertinent to postoperative care and cosmetic results of the wound are also encountered. 
     Endoscopes or robotic arms can be used for solving these problems. During the surgery, an operative space is required to be created at first for smoothly introducing the endoscopes or robotic arms to evaluate and further treat lesions. The head and neck of a human body has many different perplexing soft tissues, like muscles, nerves, glands and vessels. In addition, head and neck have smaller spaces than the other parts of the body for dissection. Until now, no proper wound opener is available for head and neck surgery when the endoscopes or robotic arms are used. As a result, the endoscopes or robotic arms cannot be operated easily, which makes surgical procedures difficult. 
     Hence, the prior art does not fulfill all users&#39; requests on actual use. 
     SUMMARY OF THE INVENTION 
     The main purpose of the present invention is to use a mechanic wound opener to adjust the position and size of a wound for introducing endoscopes or robotic arms to evaluate and further treat lesions of head and neck, where surgery can be performed smoothly, the wound size can be reduced and the wound can be effectively concealed and become invisible. 
     To achieve the above purpose, the present invention is a device of automatic mechanical wound opener for head and neck surgery, comprising an operating frame and a wound opener, where the wound opener is set at an end of the operating frame; the wound opener comprises a fixed unit and a drawing unit; the drawing unit is movably located on the fixed unit; the supporting unit comprises an adjusting base and a vertical rod set on the adjusting base; the connecting unit comprises a second adjusting base movably set on the vertical rod and a horizontal rod set on the second adjusting base; the fixed unit comprises an adjusting unit set at an end of the horizontal rod and a plurality of moving track rods movably set in the adjusting unit; the drawing unit includes a blade separately located at an end of each moving track rod; the vertical adjusting plate is set on at least one of the moving track rods; one of the blades is connected to the vertical adjusting plate; the adjusting unit has a chute to be movably combined with the moving track rods; and each moving track rod has a locking unit to be movably combined with one of the blades. Accordingly, a novel device of automatic mechanical wound opener for head and neck surgery is obtained. 
    
    
     
       BRIEF DESCRIPTIONS OF THE DRAWINGS 
       The present invention will be better understood from the following detailed description of the preferred embodiment according to the present invention, taken in conjunction with the accompanying drawings, in which 
         FIG. 1  is the perspective view showing the preferred embodiment according to the present invention; 
         FIG. 2  is the side view showing the preferred embodiment; 
         FIG. 3  is the top-down view showing the preferred embodiment; 
         FIG. 4  is the perspective view showing the wound opener; and 
         FIG. 5  is the view showing the state of use of the preferred embodiment. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The following description of the preferred embodiment is provided to understand the features and the structures of the present invention. 
     Please refer to  FIG. 1  to  FIG. 5 , which are a perspective view, a side view and a top-down view showing a preferred embodiment according to the present invention; a perspective view showing the wound opener; and a view showing a state of use of the preferred embodiment. As shown in the figures, the present invention is a device of automatic mechanical wound opener for head and neck surgery, comprising an operating frame  1  and a wound opener  2 . 
     The operating frame  1  comprises a supporting unit  11 ; and a connecting unit  12  movably connected with the supporting unit  11 , where the supporting unit  11  comprises a first adjusting base  111  and a vertical rod  112  set on the first adjusting base  111 ; and the connecting unit  12  comprises a second adjusting base  121  movably set on the vertical rod  112  and a horizontal rod  122  set on the second adjusting base  121 . 
     The wound opener  2  is set at an end of the horizontal rod  122  of the connecting unit  12  of the operating frame  1 . Therein, the wound opener  2  comprises a fixed unit  21  and a drawing unit  22  movably set on the fixed unit  21 ; the fixed unit  21  comprises an adjusting unit  211  with actuator A set at an end of the horizontal rod  122  and a plurality of moving track rods  212  movably set in the adjusting unit  211 ; the drawing unit  22  includes a blade  221  separately set at an end of each one of the moving track rods  212 ; the adjusting unit  211  is set with a chute  213  for movably combining the moving track rods  212 ; each moving track rod  212  is separately set with a locking unit  214  for movably combined with the blade  221 ; a vertical adjusting plate  215  is set on at least one moving track rod  212  (at an upper side); and, one blade  221  (the blade at the upper side) is connected with the vertical adjusting plate  215 . 
     Thus, a novel device of automatic mechanical wound opener of head/neck soft tissues is obtained. 
     Using the present invention, the first adjusting base  111  of the supporting unit  11  of the operating frame  1  is set at a side of an operating bed  3  to establish the wound opener  2 . A height of the vertical rod  112  and a fixed position of the vertical rod  112  corresponding to the operating bed  3  are adjusted before setting the first adjusting base  111 . In addition, an operational length of the horizontal rod  122  is adjusted by the second adjusting base  121  before being fixed for adjusting the wound opener  2  according to a patient&#39;s position. Thus, the operating frame  1  and the wound opener  2  are fixed on the operating bed  3  for preventing sway during surgery. 
     After the supporting unit  11  and the connecting unit  12  of the operating frame  1  are adjusted to proper positions, the drawing unit  22  of the wound opener  2  is set at a wound on skin of the patient for surgery and each blade  221  is introduced into the wound from outward to inward for hooking head/neck soft tissues at upper and lower sides. The blade  221  moves with the moving track rod  212  within the chute  213  via operation of the actuator A of the adjusting unit  211 ; or, the vertical adjusting plate  215  is used to adjust the position of the blade  221  at the upper side. After each blade  221  is moved to a fixed position, the adjusting unit  211  is fixed to decide wound size, where each blade  221  is adjusted to create a sufficient operative space and to be fixed for maintaining the space. Thus, each blade  221  is used to create the operative space, where endoscopes or robotic arms can be smoothly introduced to evaluate and treat lesions. The wound opener  2  helps operators (doctors) on head and neck surgeries, where the wound size can be further reduced and the wound can be effectively concealed. 
     During practical use, each blade  221  can be changed based on different requirement. For changing the blade  221 , the locking unit  214  at the end of the moving track rod  212  is removed; then, the original blade  221  on the moving track rod  212  is taken off; then, a proper blade is re-set on the moving track rod  212 ; and, then, the locking unit  214  is locked at the end of the moving track rod  212 . Thus, the blade  221  is changed to meet special needs of distinct situations. 
     To sum up, the present invention is a device of automatic mechanical wound opener for head and neck surgery, where a mechanic wound opener is used to adjust position and size of a wound for introducing endoscopes or robotic arms to evaluate and treat head and neck lesions; and, thus, the present invention facilitates surgical procedure, reduces wound size and effectively conceals the wound to make it become invisible. 
     The preferred embodiment herein disclosed is not intended to unnecessarily limit the scope of the invention. Therefore, simple modifications or variations belonging to the equivalent of the scope of the claims and the instructions disclosed herein for a patent are all within the scope of the present invention.