Micro laparoscopy devices and deployments thereof
View Patent ↗An apparatus for reversely deactivating a port seal in a laparoscopic port and providing a continuous passage between the laparoscopic port and a remote location in a body cavity.
1. A guiding cannula comprising:
an inner sleeve having a proximal end and a distal end;
an outer sleeve slidably receiving the inner sleeve;
a lumen extending axially between a distal opening and a proximal opening, wherein the lumen is configured to receive a laparoscopic device from the distal opening and/or the proximal opening;
a sealing member configured to seal the lumen, wherein the sealing member is fixed relative to the outer sleeve, and the inner sleeve is movable relative to the sealing member;
a handle fixed to the proximal end of the inner sleeve; and
a conic body connected to the distal end of the inner sleeve, wherein the conic body defines an edge along a single plane for guiding the laparoscopic device into the lumen, and the edge is continuous in a contracted configuration and an extended configuration,
wherein the outer sleeve defines an outer diameter adapted to fit in a port lumen of a laparoscopic port having a port seal, said guiding cannula is configured to reversely deactivate said port seal when introduced through the laparoscopic port, said guiding cannula is telescopically extendible to receive the laparoscopic device in said laparoscopic port, and said sealing member is configured to receive said laparoscopic device while sealing said lumen from an outside environment.
2. The guiding cannula according to claim 1 , wherein said sealing member is positioned in said lumen.
3. The guiding cannula according to claim 2 , wherein said sealing member is configured to seal the lumen in a direction from said distal opening to said proximal opening.
4. The guiding cannula of claim 2 , wherein said sealing member comprises a plug adapted to snugly fit in a proximal entry of said lumen.
5. The guiding cannula according to claim 4 , wherein said plug is sealed or includes an opening sized to fit said laparoscopic device.
6. The guiding cannula according to claim 1 , wherein said edge is actuated between the contracted configuration and the extended configuration by an actuating means.
7. The guiding cannula according to claim 1 , wherein said edge is self-expandable.
8. The guiding cannula according to claim 1 , wherein said contracted configuration of the edge is a cylindrical shape.
9. The guiding cannula according to claim 1 , wherein said sealing member is a two-way valve.
10. The guiding cannula according to claim 1 , wherein the outer sleeve defines a sharp needle tip.
11. The guiding cannula according to claim 1 , wherein the sealing member covers an opening in the handle to seal the lumen.
12. The guiding cannula according to claim 1 , wherein said conic body is made of an elastic material with a hardness of 70-100 Shore.
13. The guiding cannula according to claim 1 , wherein the conic body has crimped portions in the extended configuration to ease a controlled and/or symmetric collapse.
14. The guiding cannula according to claim 1 , wherein the conic body includes a surface having a continuous conic shape in the extended configuration.
15. The guiding cannula according to claim 1 , the sealing member has an opening configured to conform the laparoscopic device to seal the lumen and minimize or completely avoid gas migration through the laparoscopic port and/or the guiding cannula.
16. A guiding cannula comprising:
an inner sleeve having a proximal end and a distal end;
an outer sleeve slidably receiving the inner sleeve;
a lumen extending axially between a distal opening and a proximal opening, wherein the lumen is configured to receive a laparoscopic device from the distal opening and/or the proximal opening;
a sealing member configured to seal the lumen, wherein the sealing member is fixed relative to the outer sleeve, and the inner sleeve is movable relative to the sealing member;
a handle fixed to the proximal end of the inner sleeve; and
a conic body connected to the distal end of the inner sleeve, wherein the conic body includes an edge and a surface adjacent to the edge, the edge extends along a single plane for guiding the laparoscopic device into the lumen and has a contracted configuration and an extended configuration, and the surface has a continuous conic shape in the extended configuration,
wherein the outer sleeve defines an outer diameter adapted to fit in a port lumen of a laparoscopic port having a port seal, the guiding cannula is configured to reversely deactivate the port seal when introduced through the laparoscopic port, the guiding cannula is telescopically extendible to receive the laparoscopic device in the laparoscopic port, and the sealing member is configured to receive the laparoscopic device while sealing the lumen from an outside environment.
17. The guiding cannula according to claim 16 , wherein said conic body is made of an elastic material with a hardness of 70-100 Shore.
18. The guiding cannula according to claim 16 , the sealing member has an opening configured to conform the laparoscopic device to seal the lumen and minimize or completely avoid gas migration through the laparoscopic port and/or the guiding cannula.
19. A laparoscopic system comprising:
a laparoscopic port having a port lumen and a port seal; and
a guiding cannula having:
an inner sleeve having a proximal end and a distal end;
an outer sleeve slidably receiving the inner sleeve;
a cannula lumen extending axially between a distal opening and a proximal opening, wherein the cannula lumen is configured to receive a laparoscopic device from the distal opening and/or the proximal opening;
a sealing member configured to seal the cannula lumen, wherein the sealing member is fixed relative to the outer sleeve, and the inner sleeve is movable relative to the sealing member;
a handle fixed to the proximal end of the inner sleeve; and
a conic body connected to the distal end of the inner sleeve, wherein the conic body defines an edge along a single plane for guiding the laparoscopic device into the cannula lumen, and the edge is continuous in a contracted configuration and an extended configuration,
wherein the outer sleeve defines an outer diameter adapted to fit in the port lumen of the laparoscopic port, the guiding cannula is configured to reversely deactivate the port seal when introduced through the laparoscopic port, the guiding cannula is telescopically extendible to receive the laparoscopic device in the laparoscopic port, and the sealing member is configured to receive the laparoscopic device while sealing the cannula lumen from an outside environment.