Patent US4400168A successfully refreshed from Google Patents.
US4400168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable surgical suction apparatus
Assignee: BIOMEDICAL ENGINEERING CORP A CORP OF NJ
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Filing: 1981-05-07
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Granted: 1983-08-23
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Expires: 2001-05-07
Abstract
Abstract Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound and including structure for clearing any surgical debris lodged in the entrance aperture of the apparatus and which structure may also be used to vary the effective size of the entrance aperture to vary the suction applied to the surgical debris.
Inventors
- 👤 Frederick F. Buechel
- 👤 Michael J. Pappas
- 👤 Paul A. Witte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/76
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
156 words
Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound, said apparatus for being connected to a suction source, comprising: suction means including a first tube terminating at its forward and in a generally cylindrical filter provided with a plurality of radially disposed suction holes providing an entrance aperture through which said suction is applied to said surgical debris and terminating at its rearward end in an exit aperture through which surgical debris sucked through said entrance aperture exits said apparatus, and control means including a second tube coaxially surrounding said first tube and mounted for sliding, reciprocating, translating movement relative to said first tube to permit portions of said second tube to engage any surgical debris lodged in said entrance aperture to clear said entrance aperture and to permit portions of said second tube to alternately cover and uncover said suction holes to vary the effective size of said entrance aperture.
Claim 2
Dependent Claim
156 words
Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound, said apparatus for being connected to a suction source, comprising: suction means including a first tube terminating at its forward and in a generally cylindrical filter provided with a plurality of radially disposed suction holes providing an entrance aperture through which said suction is applied to said surgical debris and terminating at its rearward end in an exit aperture through which surgical debris sucked through said entrance aperture exits said apparatus, and control means including a second tube coaxially surrounding said first tube and mounted for sliding, reciprocating, translating movement relative to said first tube to permit portions of said second tube to engage any surgical debris lodged in said entrance aperture to clear said entrance aperture and to permit portions of said second tube to alternately cover and uncover said suction holes to vary the effective size of said entrance aperture.
Claim 3
Dependent Claim
120 words
Surgical apparatus according to claim 1 wherein said plurality of radially disposed suction holes are of different sizes and are axially disposed such that the smaller sized suction holes are forwardly of said generally cylindrical filter and said larger suction holes are rearwardly of said generally cylindrical filter whereby, upon said second tube being slid forwardly of said first tube, the number and size of said radially disposed suction holes exposed are decreased thereby reducing the suction applied and focusing the suction at the forward end of said first tube and, upon said second tube being slid rearwardly of said first tube, the size and number of said radially disposed suction holes exposed are increased thereby increasing the suction applied.
Claim 4
Dependent Claim
36 words
Surgical apparatus according to claim 1 wherein said second tube is terminated in a generally annular cutting blade for cutting any surgical debris lodged in said suction hole to enhance the clearing of said entrance aperture.
Claim 5
Dependent Claim
22 words
Surgical suction apparatus according to claim 1 including closure means for urging said second tube into position to cover said suction holes.
Claim 6
Dependent Claim
29 words
Surgical suction apparatus according to claim 4 including means for retaining said second tube in position wherein said suction holes are uncovered notwithstanding the urging of said closure means.
Claim 7
Dependent Claim
129 words
Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound, said apparatus for being connected to a suction source, comprising: suction means including a first tube terminating at its forward end in a generally cylindrical filter provided with a plurality of radially disposed suction holes providing an entrance aperture through which said suction is applied to said surgical debris and terminating at its rearward end in an exit aperture through which said surgical debris sucked through said entrance aperture exits said apparatus, and control means including a second tube coaxially surrounding said first tube and mounted for sliding, reciprocating, translating movement relative to said first tube to permit portions of said second tube to engage and clear any surgical debris lodged in said entrance aperture.
Claim 8
Dependent Claim
129 words
Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound, said apparatus for being connected to a suction source, comprising: suction means including a first tube terminating at its forward end in a generally cylindrical filter provided with a plurality of radially disposed suction holes providing an entrance aperture through which said suction is applied to said surgical debris and terminating at its rearward end in an exit aperture through which said surgical debris sucked through said entrance aperture exits said apparatus, and control means including a second tube coaxially surrounding said first tube and mounted for sliding, reciprocating, translating movement relative to said first tube to permit portions of said second tube to engage and clear any surgical debris lodged in said entrance aperture.
Claim 9
Dependent Claim
36 words
Surgical apparatus according to claim 6 wherein said second tube is terminated in a generally annular cutting blade for cutting any surgical debris lodged in said entrance aperture to enhance the clearing of said entrance aperture.
Claim 10
Dependent Claim
45 words
Surgical suction apparatus according to claim 6 wherein said second tube is displaceable in a first direction and in a second opposed direction during said sliding, reciprocating, translating movement, and including means for exerting a force to urge said second tube in said first direction.
Claim 11
Dependent Claim
30 words
Surgical suction apparatus according to claim 8 including means for maintaining said second tube displaced in said second opposed direction against the force of said means for exerting a force.
Claim 12
Dependent Claim
133 words
Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound, said apparatus for being connected to a suction source, comprising: suction means including a first tube terminating at its forward end in a generally cylindrical filter provided with a plurality of radially disposed suction holes providing an entrance aperture through which said suction is applied to said surgical debris and terminating at its rearward end in an exit aperture through which said surgical debris sucked through said entrance aperture exits said apparatus, and control means including a second tube coaxially surrounding said first tube and mounted for sliding, reciprocating translating movement relative to said first tube to permit portions of said second tube to cover and uncover said suction holes to vary the suction applied to said surgical debris.
Claim 13
Dependent Claim
133 words
Surgical suction apparatus for applying suction to surgical debris to clear a surgical wound, said apparatus for being connected to a suction source, comprising: suction means including a first tube terminating at its forward end in a generally cylindrical filter provided with a plurality of radially disposed suction holes providing an entrance aperture through which said suction is applied to said surgical debris and terminating at its rearward end in an exit aperture through which said surgical debris sucked through said entrance aperture exits said apparatus, and control means including a second tube coaxially surrounding said first tube and mounted for sliding, reciprocating translating movement relative to said first tube to permit portions of said second tube to cover and uncover said suction holes to vary the suction applied to said surgical debris.
Claim 14
Dependent Claim
120 words
Surgical apparatus according to claim 10 wherein said plurality of radially disposed suction holes are of different sizes and are axially disposed such that the smaller sized suction holes are forwardly of said generally cylindrical filter and said larger suction holes are rearwardly of said generally cylindrical filter whereby, upon said second tube being slid forwardly of said first tube, the number and size of said radially disposed suction holes exposed are decreased thereby reducing the suction applied and focusing the suction at the forward end of said first tube and, upon said second tube being slid rearwardly of said first tube, the size and number of said radially disposed suction holes exposed are increased thereby increasing the suction applied.
Claim 15
Dependent Claim
45 words
Surgical suction apparatus according to claim 10 wherein said second tube is displaceable in a first direction and in a second opposed direction during said sliding, reciprocating, translating movement, and including means for exerting a force to urge said second tube in said first direction.
Claim 16
Dependent Claim
30 words
Surgical suction apparatus according to claim 12 including means for maintaining said second tube displaced in said second opposed direction against the force of said means for exerting a force.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-22 | 1987-02-21 | 1987-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-22 | 1991-02-21 | 1991-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-22 | 1995-02-21 | 1995-08-23 | $7700.00 | Window Closed / Lapsed |