Surgical training model for laparoscopic procedures
View Patent ↗A surgical training model that includes a simulated tissue having a tubular shape that is connected to a tissue holder is provided. A portion of the simulated tissue overhangs the distal end of the tissue holder to simulate a cuff-like entry to the vaginal vault or resected intestine suitable for practicing laparoscopic closure of the vaginal vault, intestine or other organ via suturing or stapling. Two concentric tubular structures are also arranged over the same tissue holder. A second model includes two portions of simulated tissue that are held by two holders such that the simulated tissues are adjacent making the model suitable for practicing different types of anastomosis procedures. A third model includes two holders with a single or double tubular simulated tissue structure connected to and spanning a gap between the holders. The model isolates the step of closing a cylindrical opening for the purpose of repeated practice.
1. A surgical training device, comprising:
a simulated vaginal cuff including:
an elongate first simulated tissue made of flexible material and having an outer surface and an inner surface; the inner surface defining a first lumen interconnecting an opening at a distal end and an opening at a proximal end;
an elongate second simulated tissue made of flexible material and having an outer surface and an inner surface; the inner surface defining a second lumen interconnecting with an opening at a distal end and an opening at a proximal end;
wherein the first simulated tissue is disposed concentrically inside the second simulated tissue;
a support configured to support the simulated vaginal cuff; the support including:
a base having an upper surface and a lower surface;
a holder having a proximal end and a distal end; and
a connector having a proximal end and a distal end; the proximal end of the connector being connected to the upper surface of the base and extending upwardly from the base; and the distal end of the connector being connected to the proximal end of the holder; wherein the connector is an elongate arm;
wherein the holder is inserted into the first lumen to connect the holder to the simulated vaginal cuff such that the distal end of the first simulated tissue is distal to the distal end of the holder by a length defining a first overhanging portion of the first simulated tissue; the first overhanging portion maintaining the opening at the distal end when connected to the holder and being compressible to close the distal opening; and
wherein the second simulated tissue is connected to the holder such that the distal end of the second simulated tissue is distal to the distal end of the holder by a length defining a second overhanging portion of the second simulated tissue; the second overhanging portion maintaining the opening at the distal end when connected to the holder and being compressible to close the distal opening.
2. The surgical training device of claim 1 wherein the holder is configured to angulate with respect to the base.
3. The surgical training device of claim 1 wherein the simulated vaginal cuff is connected to the holder such that the simulated vaginal cuff is movable along the holder to vary the lengths of the first and second overhanging portions.
4. The surgical training device of claim 1 wherein the first simulated tissue and the second simulated tissue are connected to the holder such that the proximal openings of the first simulated tissue and second simulated tissue are stretched over the holder to locate at least a part of the holder inside the first lumen and second lumen.
5. The surgical training device of claim 1 wherein the first simulated tissue and second simulated tissue are tubular having an elliptical cross-section.
6. The surgical training device of claim 1 wherein the holder has an elliptical cross-section.
7. The surgical training device of claim 1 wherein the first simulated tissue includes a stretchable mesh material embedded in silicone.
8. The surgical training device of claim 1 wherein the second overhanging portion is shorter than the first overhanging portion.
9. The surgical training device of claim 1 further comprising a top cover connected to and spaced apart from a base to define a simulated abdominal cavity therebetween; the top cover including a penetrable tissue simulation region for accessing the simulated abdominal cavity;
wherein the simulated vaginal cuff is located inside the cavity.
10. The surgical training device of claim 1 wherein the first simulated tissue and second simulated tissue are tubular having an elliptical cross-section and wherein the first holder has an elliptical cross-section.