IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0163258
(2011-06-17)
|
등록번호 |
US-8550995
(2013-10-08)
|
발명자
/ 주소 |
- Frasier, William
- Drzyzga, Anne
- Marchek, Connie
- Dziedzic, Sara
- Brideau, Holly
- Runco, Thomas J
- Pavento, Nicholas
|
출원인 / 주소 |
- DePuy Synthes Products, LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
240 |
초록
▼
A surgical access device includes a proximal frame of fixed construction and a plurality of tissue engaging blades connected to the frame. The plurality of tissue engaging blades may include a first blade that is rotatable, independent of other blades, about an axis that is oriented approximately pa
A surgical access device includes a proximal frame of fixed construction and a plurality of tissue engaging blades connected to the frame. The plurality of tissue engaging blades may include a first blade that is rotatable, independent of other blades, about an axis that is oriented approximately parallel to a plane defined by the proximal frame.
대표청구항
▼
1. A surgical access device comprising: a proximal frame of fixed construction, the proximal frame defining a housing, the housing having a planar bottom surface defining a first plane, a top surface spaced apart from the bottom surface, an inner surface connecting the top surface and the bottom sur
1. A surgical access device comprising: a proximal frame of fixed construction, the proximal frame defining a housing, the housing having a planar bottom surface defining a first plane, a top surface spaced apart from the bottom surface, an inner surface connecting the top surface and the bottom surface, and an outer surface spaced apart from the inner surface, the inner surface including a plurality of spaced apart openings to the housing, the housing including a central opening through the top surface and the bottom surface;a plurality of tissue engaging blades, each blade having a proximal end and a distal end, the proximal end of each blade including an opening, the proximal end of each blade including the opening positioned within the housing, each blade positioned within one of the spaced apart openings in the inner surface and extending from the frame such that the distal end of each blade is positioned outside of the housing of the frame, the plurality of blades and the inner surface aligned to enclose and define the central opening in the housing; anda plurality of blade adjustment mechanisms spaced about the frame, each blade adjustment mechanism comprising a shaft positioned through the opening in the proximal end of one of the blades such that each blade is rotatable about its respective shaft, each shaft defining a rotation axis for a respective blade, each blade adjustment mechanism further comprising a screw received within a threaded bushing connected to one of the blades, rotation of the screw causing the bushing to move along an axis of the screw to adjust the rotational orientation of the blade independent of other blades. 2. The surgical access device of claim 1, wherein at least one of the plurality of tissue engaging blades comprises a primary blade connected to the proximal frame, and an adjustable blade operatively coupled to the primary blade and adjustable relative to the primary blade along a longitudinal axis of the primary blade. 3. The surgical access device of claim 2, wherein the primary blade includes a plurality of teeth extending along the longitudinal axis of the primary blade and the adjustable blade includes a flexible tab for engaging the teeth of the primary blade. 4. The surgical access device of claim 1, wherein the shafts and the respective rotation axes of each blade adjustment mechanism are positioned in a common plane that is parallel to the first plane. 5. The surgical access device of claim 4, wherein the shafts and the respective rotation axes of each blade adjustment mechanism are positioned within the housing between the top surface and the bottom surface. 6. The surgical access device of claim 1, wherein the shafts and the respective rotation axes of each blade adjustment mechanism are positioned within the housing between the top surface and the bottom surface. 7. The surgical access device of claim 1, wherein the screw axis is oriented approximately perpendicular to the first plane. 8. The surgical access device of claim 1, wherein the plurality of the blades are rotatable between a closed position in which the distal end of each blade is oriented perpendicular to the first plane and an open position in which one or more of the blades is orientated at an angle other than 90 degrees relative to the first plane. 9. The surgical access device of claim 8, wherein when the blades are in the closed position each blade contacts an adjacent blade along a lateral edge to form a continuous fully enclosed access channel. 10. A surgical access device comprising: a proximal frame of fixed construction, the proximal frame defining a housing, the housing having a planar bottom surface defining a first plane, the bottom surface including four equally spaced apart openings to the housing;a first blade having a proximal end and a distal end, the proximal end of the first blade including an opening, the proximal end of the first blade including the opening being positioned within the housing, the first blade extending through a first one of the spaced apart openings in the frame such that the distal end of the first blade is positioned outside of the housing of the frame;a first blade adjustment mechanism including a first shaft positioned through the opening in the proximal end of the first blade such that the first blade is rotatable about the first shaft, the first blade adjustment mechanism further comprising a first screw received within a threaded first bushing connected to the first blade, rotation of the first screw causing the first bushing to move along an axis of the first screw to adjust the rotational orientation of the first blade about the first shaft and independent of other blades;a second blade having a proximal end and a distal end, the proximal end of the second blade including an opening, the proximal end of the second blade including the opening being positioned within the housing, the second blade extending through a second one of the spaced apart openings in the frame such that the distal end of the second blade is positioned outside of the housing of the frame;a second blade adjustment mechanism including a second shaft positioned through the opening in the proximal end of the second blade such that the second blade is rotatable about the second shaft, the second blade adjustment mechanism further comprising a second screw received within a threaded first bushing connected to the first blade, rotation of the first screw causing the second bushing to move along an axis of the second screw to adjust the rotational orientation of the second blade about the second shaft and independent of other blades;a third blade having a proximal end and a distal end, the proximal end of the third blade including an opening, the proximal end of the third blade including the opening being positioned within the housing, the third blade extending through a third one of the spaced apart openings in the frame such that the distal end of the third blade is positioned outside of the housing of the frame;a third blade adjustment mechanism including a third shaft positioned through the opening in the proximal end of the third blade such that the third blade is rotatable about the third shaft, the third blade adjustment mechanism further comprising a third screw received within a threaded third bushing connected to the third blade, rotation of the third screw causing the third bushing to move along an axis of the third screw to adjust the rotational orientation of the third blade about the third shaft and independent of other blades;a fourth blade having a proximal end and a distal end, the proximal end of the fourth blade including an opening, the proximal end of the fourth blade including the opening being positioned within the housing, the fourth blade extending through a fourth one of the spaced apart openings in the frame such that the distal end of the fourth blade is positioned outside of the housing of the frame; anda fourth blade adjustment mechanism including a fourth shaft positioned through the opening in the proximal end of the fourth blade such that the fourth blade is rotatable about the fourth shaft, the fourth blade adjustment mechanism further comprising a fourth screw received within a threaded fourth bushing connected to the fourth blade, rotation of the fourth screw causing the fourth bushing to move along an axis of the fourth screw to adjust the rotational orientation of the fourth blade about the fourth shaft and independent of other blades. 11. The surgical access device of claim 10, wherein first, second, third, and fourth blades each comprise a primary blade connected to the proximal frame, and an adjustable blade operatively coupled to the primary blade and adjustable relative to the primary blade along a longitudinal axis of the primary blade. 12. The surgical access device of claim 10, wherein the first, second, third, and fourth blades are rotatable between a closed position in which the distal end of each blade is oriented perpendicular to the first plane and an open position in which one or more of the blades is orientated at an angle other than 90 degrees relative to the first plane. 13. The surgical access device of claim 12, wherein when the blades are in the closed position each blade contacts an adjacent blade along a lateral edge to form a continuous fully enclosed access channel.
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