ENDOSIEVE is an endoscopic device, which is passed via the biopsy/suction channel during an upper or lower endoscopy.
NEED FOR DEVELOPING THIS DEVICE
Endosieve helps in separating liquids from solids protecting the biopsy channel when aspirating a poorly prepped colon. It also protects the biopsy channel during aspiration of retained liquid food or blood around a large blood clot while working in the stomach.
While separating liquids from solids, Endosieve helps in enhancing visualization and preventing clogging of the biopsy/suction channel during the endoscopy.
The unique design of the Endosieve wherein, the net opens in a forward direction like an umbrella can hold a large polyp material after a polypectomy. Endosieve unlike the traditionally used Roth net can release the polyp specimen when and where needed, if another polyp is seen and need to be worked upon.
Endosieve can also be used to remove impacted foreign body/food bolus from the esophagus.
In a patient undergoing colonoscopy with a good, fair and adequate colon preps, we see pools of liquid and semi-solid material inside of the colon limiting visualization of the mucosa.
When aspirating during endoscopy, it often happens that the biopsy/suction channel is clogged with seeds or solid fecal material, interrupting the suction and may even require change of scopes during the procedure.
Change of scope leads to prolonged procedure time and an unsatisfied doctor along with the other members of the endoscopy team, including the patient. Many a times, scope may need to be sent for repair if seeds get stuck within the channel.
Endosieve is an instrument, which prevents of aspiration of solid fecal material and seeds during endoscopy and thereby protect the suction channel.
It can also be useful in upper endoscopy in separating the residual liquid from solid food material and liquid blood from around the blood clots.
By suctioning the liquids out completely, the mucosa could be better examined. The remnant solid material can be moved around.
After performing a large polypectomy, the polyp material is usually unable to be aspirated. The polyp material is then retrieved via a Roth net. If more polyps are noted along the withdrawal, we are unable to perform any therapeutic maneuvers given the presence of Roth net. The scope has to be withdrawn completely and reintroduced to work on the remaining polyps. This will again prolong the procedure time leading to an unsatisfied doctor along with the other members of the endoscopy team, including the patient.
With the unique design of Endosieve, i.e., with its forward opening net, the polyp material can be grabbed as well as released as needed to work on the other polyps and there by cut down on procedure time significantly and increase the efficacy of the endoscopic procedure.
The unique design of the Endosieve also will help with food impaction or foreign body removal.
MECHANISM of the ENDOSIEVE
Endosieve is passed via the biopsy/suction channel.
It measures 6 French in size.
It has two bores of plastic tube and thereby do not hinder suction power.
It has mesh like material at the tip when opened (similar to Roth net in construction).
The mesh does not allow material bigger than 6 French to be suctioned off.
It opens out forward like an umbrella and covers the opening of the biopsy/suction channel. At its maximum diameter, it resembles a disc.
As it opens like an umbrella, once aspiration is finished, Endosieve can be closed without any particulate matter stuck and can be easily removed from the scope to be used when needed in an another area