Peter Te Fan

20120239080, Sep 20, 2012

Mar 18, 2011

13/051992

Peter Fan - Saddle River NJ, US

A61B 17/28

606205

Two laparoscopic graspers are merged, having one external sheath, one handle, two pairs of jaws, two actuating rods, and two controls. Two instruments may now be used in one hand, through one port, facilitating intra-corporeal knot tying. This new “laparoscopic dual grasper” is designed to enable the passing of one end of the suture around the opposite strand to make the required “throw”. This same instrument with the additional feature of the external shaft split into two halves, with a sliding connection, permits one of the two graspers to extend further, enabling two adjacent points on the same suture to be brought together, producing a loop, which is an alternate method of making the “throw” in the tying of a knot.

20230060576, Mar 2, 2023

Aug 24, 2021

17/410747

Peter Fan - Englewood Cliffs NJ, US

A61B 17/04

Tying knots in a suture laparoscopically with straight graspers is difficult, time consuming, inefficient, and ineffective. Many instruments have been invented for this purpose, but the common problem that leads to failure is that the first throw in the tie tends to unravel itself before the second throw can be carried out. The current invention consisting of 3 mini-graspers within the same shaft, is capable of quickly producing two loops in the first throw, which is self-locking, leading to the formation of a Surgeon's Knot.

20180125480, May 10, 2018

Jan 1, 2018

15/859717

Peter Fan - Englewood Cliffs NJ, US

A61B 17/04

This instrument is intended to facilitate intra-corporeal laparoscopic tying of knots. The shafts of two small diameter laparoscopic graspers are combined within a common external sheath, and both are joined to a common handle, to be used by one hand. One grasper has no handle, but is able to rotate, and acts as a donor grasper, whilst the other has a regular scissors type of handle, is stationary, and acts as a recipient grasper. The instrument enables the head end of a suture to be passed from a donor grasper to an adjacent recipient grasper, passing behind and around its tail strand, forming the knot, in the same manner as the tying of shoe-laces.