Veress needle with illuminated guidance and suturing capability
View Patent ↗A laparoscopic instrument for forming an incision in a body cavity, insufflating the body cavity with gas, and suturing the incision at the completion of the surgery includes a set of jaws at the distal end of the Veress needle or cannula. The jaws are pivoted to one another for motion between an open position or a closed position in which they may be used to grasp a suture in the body cavity for removal from the cavity for knotting. A push mechanism at the proximal end of the instrument moves the jaws between their open and closed position on successive actuations of a pushbutton and retains them in that state until the next push. An illumination source is provided for the distal end of the instrument to provide illumination through the walls of the body cavity so that the surgeon can determine the degree of penetration of the instrument into the body cavity and can identify any major arteries which should be avoided in the formation of other laparoscopic openings.
1. A device for use in laparoscopic surgery adapted to form an incision in a body cavity and inflate the body cavity with gas passed through the incision, the device comprising:
a tube having a hollow interior, a tube proximal end and a tube distal end, the tube distal end comprising a tip operable to form the incision;
an elongated member extending through the tube from the tube proximal end to the tube distal end, the elongated member having a member proximal end and a member distal end, wherein the member distal end has a rounded tip;
a needle hole formed through the elongated member adjacent the member end operable for carrying a suture through the incision; and
a notch formed in the elongated member adjacent to the member distal end, the notch having tapered sides with a maximum width at an outer surface of the elongated member and a minimum width at an interior end, wherein the notch is adapted to capture a length of suture thread for withdrawal through the incision.
2. The device according to claim 1 , the device further comprising a gas valve for introduction of gas at the tube proximal end for passage through the incision.
3. The device according to claim 1 , wherein the elongated member is a polymer rod operable to transmit light received by the member proximal end to the member distal end, and wherein the device further comprises an illumination source operable to emit light on the member proximal end.
4. The device according to claim 3 , wherein the illumination source is a light emitting diode.
5. A device for use in laparoscopic surgery adapted to form an incision in a body cavity and inflate the body cavity with gas passed through the incision, the device comprising:
a tube having a hollow interior, a tube proximal end and a tube distal end, the tube distal end comprising a tip operable to form the incision;
an elongated member extending through the tube from the tube proximal to the tube distal end and having a member proximal end and a member distal end, wherein the member distal end is rounded and has a notch formed in the elongated member adjacent to the member distal end of the elongated member, the notch having a triangular shape with two acute interior angles and a passage from a third angle to a side of the elongated member adjacent to the distal end, each of the two acute interior angles operable to capture a portion of a suture; and
an illumination source operable to provide illumination from the member distal end.
6. The device according to claim 5 , wherein the elongated member is a polymer rod operable to transmit light received by the illumination source at the member proximal end to the member distal end.
7. The device according to claim 6 , wherein the illumination source is a light emitting diode.