Surgical access device
First Claim
Patent Images
1. A surgical access device, comprising:
- a housing defining a working channel sized and configured to receive a surgical instrument;
an insufflation port formed in the housing and configured to deliver an insufflation gas to the working channel;
a seal disposed within the housing and positioned proximal to the insufflation port, the seal being configured to receive a surgical instrument passed through the working channel; and
a fluid remover disposed within the housing and positioned distal to the insufflation port, the fluid remover having an outer perimeter mounted within the housing and a central opening configured to receive surgical instruments therethrough, and the fluid remover being configured to allow insufflation gas to pass therethrough when an instrument occludes the central opening.
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Accused Products
Abstract
The present invention generally provides methods and devices for removing fluid from a surgical instrument. Surgical access devices and seal systems are generally provided having one or more valves or seal assemblies to create a closed system between the outside environment and the environment in which the surgical access device is being inserted. The devices of systems can also include a fluid remover in the form of a sorbent element, a scraper element, a wicking element, or any combination thereof that is configured to remove fluid from a working channel of the device or system and/or from a surgical instrument inserted therethrough.
416 Citations
19 Claims
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1. A surgical access device, comprising:
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a housing defining a working channel sized and configured to receive a surgical instrument; an insufflation port formed in the housing and configured to deliver an insufflation gas to the working channel; a seal disposed within the housing and positioned proximal to the insufflation port, the seal being configured to receive a surgical instrument passed through the working channel; and a fluid remover disposed within the housing and positioned distal to the insufflation port, the fluid remover having an outer perimeter mounted within the housing and a central opening configured to receive surgical instruments therethrough, and the fluid remover being configured to allow insufflation gas to pass therethrough when an instrument occludes the central opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A surgical access device, comprising:
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a housing and a cannula extending distally from the housing, the housing and the cannula having a working channel extending therethrough between a proximal opening formed in a proximal end of the housing and a distal end of the cannula, the working channel being sized and configured to receive a surgical instrument; an insufflation port coupled to the housing and configured to receive and deliver an insufflation gas to the working channel; a seal disposed within the housing and configured to substantially prevent passage of an insufflation gas from the insufflation port to the proximal opening when no surgical instrument is disposed therethrough; and a fluid remover disposed within the housing and positioned distal of the seal, the fluid remover having an outer perimeter mounted within the housing, a central opening formed therethrough and positioned to receive a surgical instrument passed through the working channel, and a hole formed therein between the central opening and the outer perimeter, the hole being configured to allow insufflation gas to pass from the insufflation port to the cannula when an instrument is disposed through and occludes the central opening in the fluid remover. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification