IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0828550
(2010-07-01)
|
등록번호 |
US-8517935
(2013-08-27)
|
발명자
/ 주소 |
- Marchek, Connie
- Frasier, William
- Kothari, Anne
- Dziedzic, Sara
- Brideau, Holly
- Runco, Thomas J
- Pavento, Nicholas
- Beaudoin, Paul
|
출원인 / 주소 |
- DePuy Synthes Products, LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
19 인용 특허 :
240 |
초록
▼
A surgical retractor includes a plurality of blade assemblies interconnected by a plurality of racks. One or more of the blade assemblies is movable along a rack to selectively expand the retractor. At least one of the blade assemblies includes a blade that is rotatably connected to the blade assemb
A surgical retractor includes a plurality of blade assemblies interconnected by a plurality of racks. One or more of the blade assemblies is movable along a rack to selectively expand the retractor. At least one of the blade assemblies includes a blade that is rotatably connected to the blade assembly and that is rotatable independent of other blades of the retractor.
대표청구항
▼
1. A retractor comprising: a first blade assembly including a first blade, a second blade assembly including a second blade, and a third blade assembly including a third blade, the first blade assembly connected by a first rack to the third blade assembly, the first blade assembly being movable alon
1. A retractor comprising: a first blade assembly including a first blade, a second blade assembly including a second blade, and a third blade assembly including a third blade, the first blade assembly connected by a first rack to the third blade assembly, the first blade assembly being movable along the first rack relative to the third blade assembly, the first blade assembly defining a first housing having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, the first housing having a first opening, at least a portion of a proximal end of the first blade positioned inside the first housing between the top surface, bottom surface, and side surface and extending through the first opening in the first housing and a distal end of the first blade being positioned outside of the first housing, the first blade being rotatably coupled to the first housing and having a rotation axis that intersects the proximal end of the first blade and intersects the housing,the second blade assembly connected by a second rack to the third blade assembly, the second blade assembly being movable along the second rack relative to the third blade assembly,the first blade assembly and the second blade assembly being adjustable between a closed configuration in which the first blade, the second blade, and the third blade contact one another along at least a portion of their lengths and an open position in which first blade, the second blade, and the third blade are spaced apart from one another,the first blade being rotatable independent of the second blade and the third blade,the second blade being rotatable independent of the first blade and the third blade, andthe first blade assembly including a screw received within a hole provided in the first blade assembly, movement of the screw along a screw axis within the first housing relative to the first blade assembly adjusts the rotational orientation of the first blade. 2. The retractor of claim 1, wherein the first blade of the first blade assembly comprises: a primary blade, andan 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 retractor 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 retractor of claim 1, wherein the teeth are provide on an arcuate surface of the proximal end of the first blade, the teeth engaging a thread provided on the screw. 5. The retractor of claim 1, wherein the screw axis is oriented generally parallel to a plane defined by the bottom surface of the first blade assembly. 6. The retractor of claim 1, wherein the screw axis is oriented generally perpendicular to a plane defined by the bottom surface of the first blade assembly. 7. The retractor of claim 1, wherein the first blade, the second blade, and the third blade contact one another at least the proximal ends thereof in the closed configuration. 8. The retractor of claim 7, wherein the first blade, the second blade, and the third blade contact one another along an entirety of the length of the blades to form a continuously enclosed working channel when the retractor is in the closed configuration. 9. The retractor of claim 8, wherein the working channel has an approximately circular cross section when the retractor is in the closed configuration. 10. The retractor of claim 1, wherein the second blade assembly includes a screw received within a hole provided in the second blade assembly, movement of the screw along a screw axis relative to the second blade assembly adjusts the rotational orientation of the first blade. 11. The retractor of claim 1, further comprising a gear positioned in the first blade assembly, the gear engaging the first rack, rotation of the gear causing the first blade assembly to move along the first rack. 12. The retractor of claim 11, further comprising a second gear positioned in the second blade assembly, the second gear engaging the second rack, rotation of the second gear causing the second blade assembly to move along the second rack. 13. The retractor of claim 1, wherein the rotation axis is oriented in a plane that is generally parallel to a plane defined by the bottom surface of the housing of the first blade assembly. 14. The retractor of claim 1, wherein the first opening is formed in the side surface of the housing. 15. The retractor of claim 1, wherein the second blade assembly defines a second housing having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, the second housing having a second opening, at least a portion of a proximal end of the second blade extending through the second opening in the second housing and a distal end of the second blade being positioned outside of the second housing. 16. The retractor of claim 15, wherein the third blade assembly defines a third housing having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, the third housing having a third opening, at least a portion of a proximal end of the third blade extending through the third opening in the third housing and a distal end of the third blade being positioned outside of the third housing. 17. The retractor of claim 16, wherein the third blade is rotatable independent of the first blade and the second blade. 18. The retractor of claim 1, wherein the hole is provided in the top surface of the first housing. 19. A retractor comprising: a first blade assembly including a first blade having a proximal end and a distal end, the first blade assembly defining a first housing having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, the first housing having an opening in at least the side wall, at least a portion of the proximal end of the first blade (i) positioned inside the first housing between the top surface, bottom surface, and side surface, (ii) extending through the opening in the first housing, and (iii) being rotatably connected to the first housing, a distal end of the first blade being positioned outside of the first housing,a second blade assembly including a second blade having a proximal end and a distal end, the second blade assembly defining a second housing having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, the second housing having an opening in at least the side wall, at least a portion of the proximal end of the second blade (i) positioned inside the second housing between the top surface, bottom surface, and side surface, (ii) extending through the opening in the second housing, and (iii) being rotatably connected to the second housing, a distal end of the second blade being positioned outside of the second housing, anda third blade assembly including a third blade having a proximal end and a distal end, the third blade assembly defining a third housing having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, the third housing having an opening in at least the side wall, at least a portion of the proximal end of the third blade (i) positioned inside the third housing between the top surface, bottom surface, and side surface, (ii) extending through the opening in the third housing, and (iii) being rotatably connected to the third housing, a distal end of the third blade being positioned outside of the third housing,the first housing connected by a first rack to the third housing, the first housing being movable along the first rack relative to the third housing,the second housing connected by a second rack to the third housing, the second blade housing being movable along the second rack relative to the third housing,the first housing and the second housing being adjustable between a closed configuration in which the first blade, the second blade, and the third blade contact one another along at least a portion of their lengths and an open position in which first blade, the second blade, and the third blade are spaced apart from one another,the first blade being rotatable independent of the second blade and the third blade,the second blade being rotatable independent of the first blade and the third blade,the third blade being rotatable independent of the first blade and the second blade,the first blade assembly including a first screw received within a hole provided in the top surface of the first housing, movement of the first screw along a screw axis relative to the first blade assembly adjusts the rotational orientation of the first blade,the second blade assembly including a second screw received within a hole provided in the top surface of the second housing, movement of the second screw along a screw axis relative to the second blade assembly adjusts the rotational orientation of the second blade, andthe third blade assembly including a third screw received within a hole provided in the top surface of the third housing, movement of the third screw along a screw axis relative to the third blade assembly adjusts the rotational orientation of the third blade.
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