Apparatus for introducing an object into a patient
First Claim
1. A cannula assembly, comprising:
- a housing, comprising;
a distal end defining a distal opening, wherein the distal end is configured to couple to a cannula tube aligned with the distal opening; and
a proximal end defining a proximal opening;
a rotatable member positioned within the housing, wherein the rotatable member defines a passage in fluid communication with the distal opening, a first opening in fluid communication with the passage, and a second opening in fluid communication with the passage;
a first plurality of membranes arranged as a stack at the first opening, wherein each of the first plurality of membranes defines an aperture; and
a second plurality of membranes arranged as a stack at the second opening, wherein each of the second plurality of membranes defines an aperture;
wherein the rotatable member is configured to rotate within the housing between a first position and a second position, wherein in the first position, the first opening aligns with the distal opening of the housing, and wherein in the second position, the second opening aligns with the distal opening of the housing.
3 Assignments
0 Petitions
Accused Products
Abstract
A cannula assembly including a housing, a rotatable member, a first plurality of membranes, and a second plurality of membranes is disclosed. The housing may include a distal end defining a distal opening, wherein the distal end is configured to couple to a cannula tube aligned with the distal opening, and a proximal end defining a proximal opening. The rotatable member may be positioned within the housing and may define a passage in fluid communication with the distal opening, a first opening in fluid communication with the passage, and a second opening in fluid communication with the passage. The first plurality of membranes may be arranged as a stack at the first opening, wherein each of the first plurality of membranes defines an aperture. The second plurality of membranes may be arranged as a stack at the second opening, wherein each of the second plurality of membranes defines an aperture. The rotatable member may be configured to rotate within the housing between a first position and a second position, wherein in the first position, the first opening aligns with the distal opening of the housing, and wherein in the second position, the second opening aligns with the distal opening of the housing.
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Citations
20 Claims
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1. A cannula assembly, comprising:
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a housing, comprising; a distal end defining a distal opening, wherein the distal end is configured to couple to a cannula tube aligned with the distal opening; and a proximal end defining a proximal opening; a rotatable member positioned within the housing, wherein the rotatable member defines a passage in fluid communication with the distal opening, a first opening in fluid communication with the passage, and a second opening in fluid communication with the passage; a first plurality of membranes arranged as a stack at the first opening, wherein each of the first plurality of membranes defines an aperture; and a second plurality of membranes arranged as a stack at the second opening, wherein each of the second plurality of membranes defines an aperture; wherein the rotatable member is configured to rotate within the housing between a first position and a second position, wherein in the first position, the first opening aligns with the distal opening of the housing, and wherein in the second position, the second opening aligns with the distal opening of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cannula assembly, comprising:
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a bracket that defines a distal opening; a cannula tube coupled to the bracket, wherein the cannula tube defines a longitudinal axis, and wherein the distal opening defined by the bracket is aligned with the longitudinal axis; a first seal component rotatably coupled to the bracket, wherein the first seal component defines a first passage fluidically coupleable with the distal opening defined by the bracket, wherein a first opening is fluidically coupled to the first passage, and wherein a second opening is fluidically coupled to the first passage; a first plurality of compliant membranes arranged at the first opening, wherein each of the first plurality of compliant membranes defines an aperture; a second plurality of compliant membranes arranged at the second opening, wherein each of the second plurality of compliant membranes defines an aperture; and a second seal component rotatably interfaced with the first seal component and coupled to the bracket, wherein the second seal component defines a second passage fluidically coupleable with the first passage, and wherein the second passage is fluidically coupled to the distal opening defined by the bracket; wherein the first seal component is configured to rotate within the bracket between a first position and a second position, wherein in the first position, the first opening is aligned with the longitudinal axis of the cannula tube, and wherein in the second position, the second opening is aligned with the longitudinal axis of the cannula tube. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A cannula system, comprising:
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a cannula assembly, comprising; a housing that defines a distal opening; a tube coupled to and extending distally from the housing, wherein the tube is aligned with the distal opening; a rotatable cylinder positioned within the housing, wherein the rotatable cylinder defines a first passage fluidically coupled to the distal opening and a first opening fluidically coupled to the first passage; a plurality of seal membranes arranged at the first opening, wherein each of the plurality of seal membranes defines an aperture; and a cylinder seal component interfaced with the rotatable cylinder and coupled to the housing, wherein the cylinder seal component defines a second passage fluidically coupled to the first passage and the distal opening; wherein, in a first rotated position of the rotatable cylinder, the first opening aligns with the distal opening to define a first fluid path from a distal end of the tube to the first opening; and a surgical instrument removably positioned within the first fluid path. - View Dependent Claims (20)
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Specification