发明名称 |
Fluid-expandable surgical retractor |
摘要 |
A surgical retractor includes a generally annular bladder which is fluidly expandable so as to apply an outwardly-directed radial force against soft tissues. The inner and outer annular bladder walls are formed of a flexible resilient material with elastic properties to permit a variable amount of expansion in predetermined directions. A tube extending from the bladder connects the bladder to a three-way valve which is used to selectively inflate, by means of an attached pump, or to exhaust the bladder. A plurality of baffles within the bladder provide the retractor with a generally cylindrical shape. A woven fabric matrix is mounted to the inner annular wall to control expansion thereof. Pockets formed in the woven material permits the introduction of puncture- and incision-resistant shields to prevent accidental puncture of the bladder.
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申请公布号 |
US5342385(A) |
申请公布日期 |
1994.08.30 |
申请号 |
US19920914712 |
申请日期 |
1992.08.14 |
申请人 |
NORELLI, ROBERT A.;JELINEK, EDWARD H.;CULLAN, GEORGE E. |
发明人 |
NORELLI, ROBERT A.;JELINEK, EDWARD H.;CULLAN, GEORGE E. |
分类号 |
A61B17/00;A61B17/02;A61B17/135;(IPC1-7):A61M29/00 |
主分类号 |
A61B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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