Surgical dilator, retractor and mounting pad
Inventors
Heiges, Bradley A. • Lane, II, David E.
Assignees
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Publication Number
US-9585648-B2
Publication Date
2017-03-07
Expiration Date
Abstract
A retractor having an elongate body that provides access to a surgical location within a patient. The elongate body includes a plurality of segments that are connected to one another through a plurality of ratcheting mechanisms. The ratcheting mechanisms permit relative movement of the segments with respect to one another when expander dilators are inserted within the retractor. The segments are surrounded and retained by a resilient elastomeric sleeve or bands. The distal end surfaces of the segments include thin edges that are configured to mobilize, dissect, split and retract the terminal tissues in the surgical area. The retractor is used in conjunction with a resilient elastomeric pad that is affixed to the patient and firmly engages the outer surface of the elongate body to thereby anchor the retractor to the patient. A separate anchoring device can be used to connect the retractor to the pad.
Core Innovation
The invention relates to an operative dilator and associated access/retractor device geometry for use at a surgical location within a patient. The operative dilator includes an elongated body having a length spanning the distance above a patient's skin surface at a proximal end portion and juxtaposed a surgical area at a distal end portion, with a central passageway extending the entire length of the dilator and an outer wall adapted to conform to an inner surface of a retractor device having a similar configuration.
A key aspect of the invention is the contoured distal end tip and distal end portion geometry. The distal end portion extends outwardly from the opposing lower distal end and includes a plurality of curved surfaces forming a contiguous distal end tip outer surface, with first and second pairs of opposing surfaces and a lower distal edge formed from a plurality of arcuate surfaces that form a concave shape at the distal end of the dilator.
In one configuration, concave surfaces extend outwards in a curved fashion from semi elliptical surfaces, and in another configuration the distal end tip includes curved surfaces with an arcuate concave shape. The geometry includes a first pair connected at a point located at the most distal end and a second opposing set having a mid-point located closer to the elongated body, and is configured to engage a device for providing access to a surgical location within a patient.
Claims Coverage
The partial claim set provided includes four independent claims. Across these independent claims, the inventive coverage centers on the operative dilator’s elongated, centrally passaged body and a distal end tip with defined curved surface and concave distal shape geometry configured to conform to a retractor device’s inner surface.
Operative dilator with semi-elliptical contiguous outer surface and concave distal surfaces
An operative dilator having an elongated body with a central passageway extending the entire length, an outer wall formed by first and second pairs of opposing semi elliptical surfaces spanning from the proximal end to an opposing distal end, and a distal end portion with concave surfaces that extend outwards in a curved fashion from the semi elliptical surfaces.
Operative dilator conforming to an inner surface of a retractor device with a contiguous distal end tip outer surface
An operative dilator adapted for engagement with a device for providing access to a surgical location, comprising an elongated body with a full-length central passageway, an outer wall adapted to conform to an inner surface of a retractor device, and a distal end tip extending outwardly from the opposing lower distal end with first and second pairs of opposing semi elliptical surfaces forming a contiguous distal end tip outer surface.
Operative dilator with a concave distal end created by arcuate surfaces forming a distal end tip
An operative dilator adapted for engagement with a device for providing access to a surgical location, comprising an elongated body with a full-length central passageway, an outer wall adapted to conform to an inner surface of a retractor device, and a distal end tip having a first pair of opposing curved surfaces and a second pair of opposing curved surfaces forming a contiguous distal end tip outer surface, with a lower distal edge formed from a plurality of arcuate surfaces forming a concave shape at the distal end.
Operative dilator with concave distal end and defined curved-surface connection and mid-point locations
An operative dilator adapted for engagement with a device for providing access to a surgical location, comprising an elongated body with a full-length central passageway, an outer wall adapted to conform to an inner surface of a retractor device, and a distal end tip with a plurality of curved surfaces including a lower distal edge formed from a plurality of arcuate surfaces forming a concave shape, where arcuate surfaces include a first pair of curved surfaces connected at a point at the most distal end and a second opposing set of curved surfaces having a mid-point located closer to the elongated body relative to the point of the first pair.
Across the independent claims provided, the operative dilator is defined by an elongated body with a central passageway extending the full length and an outer wall conforming to a retractor device’s inner surface, together with a distal end tip that forms a contiguous outer surface and includes curved and arcuate surfaces that create a concave distal shape with defined paired surface connection geometry.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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