Compact endoscopic surgical blade assembly and method of use thereof
Inventors
Assignees
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Publication Number
US-10265093-B2
Publication Date
2019-04-23
Expiration Date
Abstract
An endoscopic surgical device comprising a slotted clear cannula, a blade and a housing, wherein the cannula is attached to the housing, and wherein the blade is enclosed in the housing and is slidable into the cannula is disclosed. The blade is enclosed within the housing and cannula, and has a horizontally-oriented pushing component and a vertically-oriented cutting component that protrudes through the slot of the cannula. A method for a performing an operative procedure on a target tissue in a subject using the endoscopic surgical device is also described.
Core Innovation
The invention is an endoscopic surgical device comprising a housing having a proximate end and a distal end, and a slotted clear cannula attached to the distal end. The slotted clear cannula includes a cannula body with a slot extending from a proximate end of the cannula to a proximity of a distal end of the cannula, and the device is configured so that a cutting element can be deployed through the slot while viewing is supported through the device architecture.
Within the housing, the invention provides a rotatable assembly that includes a slide pusher assembly comprising a notch and a blade. The blade is positioned in the notch in a pre-deployment position, and a circular revolver body comprising a selector switch allows engagement of the blade for deployment; the blade includes an upper cutting surface forming an upper angle with a bottom surface and a lower cutting surface forming a lower angle with the bottom surface.
The invention further provides a tube assembly having a proximate end and a distal end, with the distal end located within the housing and extending through the revolver body, and the tube assembly connects to the slotted clear cannula from the proximate end of the clear cannula. The slotted clear cannula distal to the housing has a closed end that is tapered, and the described architecture supports uniportal endoscopic use including entry portal creation, advancing and extending the cannula to target tissue, endoscope visualization of the target tissue, and advancing the blade to make a desired cut.
Claims Coverage
The provided claim set identifies one independent claim, clm-00001, which defines the endoscopic surgical device architecture with a slotted clear cannula and an internal rotatable blade deployment assembly. Dependent claims add structural refinements and narrow usage toward uniportal endoscopic surgical procedures and specified indications.
Housing with a slotted clear cannula
A housing having a proximate end and a distal end, and a slotted clear cannula attached to the distal end of the housing, wherein the slotted clear cannula comprises a cannula body with a slot extending from a proximate end of the cannula to a proximity of a distal end of the cannula.
Rotatable assembly with selector switch for blade deployment
A rotatable assembly located within the housing, comprising a slide pusher assembly comprising a notch, a blade with an upper cutting surface forming an upper angle with a bottom surface and a lower cutting surface forming a lower angle with the bottom surface, and a circular revolver body comprising a selector switch, wherein the blade resides at the notch of the slide pusher assembly in a pre-deployment position and the selector switch allows engagement of the blade for deployment.
Blade tab embedded into pusher base
The blade comprises a tab that embeds into a pusher base.
Tube assembly connecting to slotted clear cannula and extending through revolver body
A tube assembly having a proximate end and a distal end, wherein the distal end of the tube assembly is located within the housing and extends through the revolver body, and the tube assembly connects to the slotted clear cannula from the proximate end of the clear cannula.
Tapered closed distal end of slotted clear cannula
The slotted clear cannula distal to the housing has a closed end that is tapered.
Claim clm-00001 covers a compact uniportal endoscopic surgical device built around a housing with a slotted clear cannula, an internal rotatable blade deployment assembly with a selector switch and notch-based pre-deployment positioning, and a tube assembly that connects to the slotted cannula while passing through the revolver body; the distal cannula end is closed and tapered.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Uniportal endoscopic surgical procedure including establishing an entry portal, inserting and extending the cannula to target tissue, advancing an endoscope to visualize the target tissue, and advancing the blade to make a desired cut.
Uniportal endoscopic procedure selected from trigger linger release, carpal tunnel release, cubital tunnel release, plantar fascia release, lateral release for patella realignment, release of the extensor tendons, release of the posterior or other compartments of the leg, or forearm fascial release.
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