Abstract:
A suturing needle is disclosed having a main longitudinal axis, a distal sharp portion and proximal portion along said axis. The distal portion is hollowed, and the hollow is approximately parallel to said axis. A further embodiment of the suturing needle is disclosed such that the distal portion comprises a notched open bore located at the needle&#39;s extreme distal end. Other embodiments of the suturing assembly are described accommodating a suture in the needle bore.

Description:
FIELD OF THE INVENTION 
     The present invention generally relates to a medical device for surgical procedures and specifically to a suturing assembly comprising hollow needle. 
     BACKGROUND OF THE INVENTION 
     Surgical procedures these days tend to minimize cut of body tissue by utilizing advanced technology medical devices. Consequently, alternative suturing procedures have to be applied for addressing new substantially further complicated conditions facing the suturing procedures. In the procedure of anastomosis of the urethra and bladder during radical retro-pubic prostatectomy, for example, the attachment of the urethral stump to the bladder neck is particularly difficult and carried out semi-automatically by a surgical medical device. The prior art of suturing manually cannot be applied in these surgical procedures without further body tissue cutting that provides an easier access to the tissue area. The new surgical procedures utilizing for example technologically advanced catheters can be implemented by combining the insertion of catheters into body tubes, tracts or canals and thus restricting the required body tissue cuts. When these surgical procedures are being used, new technologically advanced suturing methods have to be applied for utilizing the advantages of the new surgical procedures to their fullest. Apparently there is a need for suturing devices capable of meeting the challenging conditions imposed by the new surgical procedures. 
     SUMMARY OF THE INVENTION 
     It is an object of the present invention to disclose a suturing needle having a hollowed distal portion. 
     Another object of the present invention is to disclose a suturing needle having a hollowed distal portion, comprising a notched open bore located at said needle&#39;s very distal end. 
     Another object of the present invention is to disclose a suturing assembly comprising said suturing needle with a hollowed distal portion. 
     Another object of the present invention is to disclose a suturing assembly comprising a needle with a main longitudinal axis having a sharpened tip and hollow distal portion, defining a notched open bore at said needle very distal end. 
     Another object of the present invention is to disclose the needle as defined in any of the above, wherein said hollow portion of said needle having a bore is adapted to accommodate a suture. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said hollow portion of said needle having a bore is adapted to accommodate a suture. 
     Another object of the present invention is to disclose the needle as defined in any of the above, further comprising a proximal portion, wherein said proximal portion is adapted for coupling with a surgical device. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said proximal portion is adapted for coupling with surgical device. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, further comprising a suture; said suture is extended from said bore. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, said assembly further comprising a suture, reversibly mounted within said bore. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said suture comprising at least one anchoring stopper. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said anchoring stopper is spherically shaped. 
     Another object of the present invention is to disclose a suturing assembly as defined in any of the above, wherein said anchoring stopper is shaped in a shape consisting of a group of various triangles. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said anchoring stopper comprising a plurality of rods, umbrella like shaped, having a main axis substantially coinciding with the longitudinal axis of said suture. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said hollow portion of the needle is having a bore, adapted to accommodate a suture. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, said assembly further comprising a proximal portion wherein said proximal portion is adapted for coupling with surgical device. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, said assembly further comprising a suture; said suture is extended from said bore after inserting said suture into said bore. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, said assembly further comprising a suture; said suture is extended from said bore via said notch after inserting said suture into said bore. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, said assembly further comprising at least one anchoring stopper. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said suture comprising at least one anchoring stopper. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said anchoring stopper is spherically shaped. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said anchoring stopper is shaped in a shape consisting of a group of various triangles. 
     Another object of the present invention is to disclose the suturing assembly as defined in any of the above, wherein said anchoring stopper, comprising a plurality of rods, umbrella like shaped, having a main axis substantially coinciding with the longitudinal axis of said of said suture. 
     Another object of the present invention is to disclose method of suturing. The method comprising steps selected from a group consisting of obtaining a suturing assembly, comprising (i) a suturing needle with a hollowed distal portion with an open bore at the distal end; and, (ii) a suture reversibly mounted within said bore; suturing a body tissue by piercing said tissue with said distal portion of said needle, until said needle&#39;s distal portion extends beyond said pierced tissue; and, retrieving said needle backwards (retrograde) while said suture end, i.e., the end which was inserted into said needle bore, is disengaging from said suturing needle and retained beyond said pierced tissue. 
     Another object of the present invention is to disclose the suturing method as defined in any of the above, wherein disengaging said retrieved needle from said suture is provided by an anchoring stopper retaining the suture beyond said pierced tissue. 
     Another object of the present invention is to disclose the method as defined in any of the above, wherein said suturing is provided manually. 
     Another object of the present invention is to disclose the method as defined in any of the above wherein said suturing is provided automatically by coupling said needle, especially its proximal portion, with a surgical device. 
     Another object of the present invention is to disclose the method as defined in any of the above, said assembly further wherein said suturing is provided automatically by coupling a plurality of N needles, with a surgical device. N is integer number, being in a non-limiting manner between 2 to 10. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
       The object and the advantages of various embodiments of the invention will become apparent from the following description when read in conjunction with the accompanying drawings wherein: 
         FIG. 1   a  schematically represents an out-of-scale illustration of the distal portion of the suturing needle according to one embodiment of the present invention; 
         FIG. 1   b  schematically represents an out-of-scale illustration of the distal portion of the suturing needle with the inserted suture according to another embodiment of the invention; 
         FIG. 2  schematically represents an out-of-scale side view of distal portion of the suturing needle depicting the bore inside the needle according to another embodiment of the invention; 
         FIG. 3  schematically represents an out-of-scale illustration of the suturing needle combined with an inserted suture according to another embodiment of the invention; 
         FIG. 4  schematically represents a flow chart of a method according to another embodiment of the invention; 
         FIG. 5  schematically represents an out-of-scale illustration of the suturing needle with the extended suture at two distinct suturing positions according to another embodiment of the invention; and, 
         FIG. 6  schematically represents out-of-scale illustration of variations of the anchoring according to yet another embodiment of the invention. 
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     The following description is provided alongside all chapters of the present invention, so as to enable any person skilled in the art to make use of said invention and sets forth the best modes contemplated by the inventor of carrying out this invention. Various modifications however, will remain apparent to those skilled in the art, since the generic principles of the present invention have been defined specifically to provide a suturing needle having a hollowed distal portion; a suturing assembly comprising a needle with a main longitudinal axis having a sharpened and hollow distal portion, defining a notched open bore at said needle very distal end; and a method of suturing comprising obtaining a suturing assembly, comprising (i) a suturing needle with a hollowed distal portion with an open bore at the distal end; and, (ii) a suture reversibly mounted within said bore; suturing a body tissue by piercing said tissue with said distal portion of said needle, until said needle&#39;s distal portion extends beyond said pierced tissue; and, retrieving said needle backwards (retrograde) while said suture end, i.e., the end which was inserted into said needle bore, is retained beyond said tissue. 
     Reference is now made to  FIG. 1   a  presenting a schematic illustration of the distal portion of the needle. The distal portion of the needle  10  is apt to piercing a body tissue by a sharpened tip  1 . The distal portion  10  is hollow and further comprises a bore and least one notch  2  at the very distal end of the bore which are used to accommodate a suture. 
     Reference is now made to  FIG. 1   b  presenting a schematic illustration of a suturing assembly of the distal portion of the suturing needle combined with the suture. The suturing assembly  30  comprises the distal portion of the needle  10  combined with a suture  20  inserted through the notch  2  into the bore. Notch  2  is used for guiding the suture  20  during suture insertion and for retaining the suture inserted to the needle  10  while the suturing assembly  30  is penetrating the body tissue. 
     Reference is now made to  FIG. 2  presenting a schematic illustration of a side view of the distal portion of the suturing needle. The distal portion of the suturing needle  10  and the sharpened tip  1  are drawn by solid lines, while the concealed notch  2  bore  4 , are drawn by dashed lines. 
     Reference is now made to  FIG. 3  presenting a schematic illustration of the distal portion of the needle  10  along with the distal portion of the suturing needle  30 . As indicated, the distal portion of the needle is characterized by a main longitudinal axis. The suturing needle includes the suture  20  with a first portion retained in the bore and the notch  2  of the needle. A second portion of the suture  20 , adjacent to the first portion extends alone the outer surface of the needle  30 . An anchoring stopper  21  is appended to the suture  20  between the first and second portions and used to keep the suture inside the body tissue by blocking the motion of in the proximal direction when the needle is retrieved. 
     Reference is now made to  FIG. 4  presenting a schematic illustration of a flow chart depicting the method of body tissue suturing. In step  51 , the surgeon inserts the suture into the bore of the distal portion of the suturing needle for preparing the needle-suture assembly. In the following step  52 , the surgeon pierces the tissue for penetrating the suturing needle combined with the suture into the tissue until the suturing needle tip and the anchoring stopper appended to the suture extend beyond the inner wall of the tissue. In the following step  53  the surgeon retrieves the suturing needle so that the needle is traversing in the proximal direction. When retrieved, the suturing needle disengages from the suture since the suture is retained in the tissue by the appended anchoring stopper preventing movement of the suture in the proximal direction. The suture can be tied later by the surgeon to another nearby suture inserted similarly into the body tissue. 
     Reference is made now to  FIG. 5  presenting a schematic illustration showing side by side the needle-suture assembly at some time during tissue penetration and at some time during retrieving. Identical parts of the assembly shown at the distinct instances during the suturing process are designated by the letters “a” and “b”. The needle-suture assembly  30  is depicted after piercing the body tissue wall  42  and penetrating through the body tissue  40  until the anchoring stopper  21   a  is beyond the inside wall of body tissue  40 . Needle  10   b  is depicted when retrieved from the body tissue while the suture  20  is disengaged from needle  10   b  and retained inside the body tissue by the anchoring stopper  21   b  blocking the movement out. 
     Reference is now made to  FIG. 6  presenting a schematic illustration of two distinct embodiments of the anchoring stopper appended to the suture. The stopper is structured to minimize interfering with the needle-suture penetration into the body tissue yet provide the blocking action to the suture when the stopper is located beyond and near the inside wall of the body tissue when the needle is retrieving. Stopper  21  is shaped like a triangle consisting of a group of various triangular shapes. Another embodiment of the anchoring stopper is illustrated by Stopper  22  and stopper  23 . In this embodiment the stopper is an umbrella like structure constructed by a plurality of rods. When the suturing assembly is penetrating the tissue, stopper  22  is shaped like a closed umbrella thus minimally interfering with the needle suture penetration into the tissue. Stopper  23  of this type is depicted when stopper getting to the internal wall of the body tissue whereas the stopper becomes shaped like an opened umbrella and thus provides the stopper blocking function.