Medical suctioning apparatus and methods of use
First Claim
1. A medical suction device, comprising:
- a housing with a distal applicator tip;
a tip suction aperture at said applicator tip;
a proximal suction port within said housinga suction conduit within said housing which terminates distally at said tip suction aperture and terminates proximally at the proximal suction port;
a vacuum conduit adapted to couple to a vacuum source;
a valve manifold coupled to the proximal suction port and also to the vacuum conduit;
a vent coupled to the valve manifold and in communication with atmospheric pressure, said valve manifold being adapted to variably and proportionally adjust the communication of vacuum pressure from the vacuum conduit between the suction conduit and said vent,said valve manifold being manually adjustable from a first position, wherein the suction conduit is completely isolated from the vacuum conduit and the vent is in fluid communication with the vacuum conduit, to a second position, wherein the suction conduit is in communication with the vacuum conduit and the vent is completely isolated from the vacuum conduit,wherein the valve manifold is adapted to controllably select the proportion of vacuum pressure applied to the suction conduit from a range of pressure which includes complete isolation from vacuum to full vacuum pressure.
2 Assignments
0 Petitions
Accused Products
Abstract
A medical fluid suctioning device for selectively applying varied levels of suction pressure at a device-tissue interface includes a direct "trumpet"-type control mechanism in conjunction with a "venturi"-type control. A valve manifold is adapted to couple a vent pathway and a suction pathway simultaneously to the vacuum conduit adapted for connection to a vacuum source. The amount of resistance to flow due to vacuum pressure is adjusted simultaneously in both the vent pathway and the suction pathway in order to achieve controlled, selected levels of suction. Similarly shaped valve apertures are provided in inverse and reciprocal orientation along an axis of motion of a valve manifold. The apertures translate across ports to the suction and venting pathways simultaneously to vary applied suction to those pathways inversely. The shaped valve apertures preferably have diminished elliptical shapes having an elongate axis with an increasing cross-sectional area going from a transverse short axis to a transverse wide axis along the axis of motion of the valve manifold. The diminished elliptical shapes are inversely oriented relative to each other as regards the positioning of their wide and short transverse axis along the axis of motion.
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Citations
27 Claims
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1. A medical suction device, comprising:
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a housing with a distal applicator tip; a tip suction aperture at said applicator tip; a proximal suction port within said housing a suction conduit within said housing which terminates distally at said tip suction aperture and terminates proximally at the proximal suction port; a vacuum conduit adapted to couple to a vacuum source; a valve manifold coupled to the proximal suction port and also to the vacuum conduit; a vent coupled to the valve manifold and in communication with atmospheric pressure, said valve manifold being adapted to variably and proportionally adjust the communication of vacuum pressure from the vacuum conduit between the suction conduit and said vent, said valve manifold being manually adjustable from a first position, wherein the suction conduit is completely isolated from the vacuum conduit and the vent is in fluid communication with the vacuum conduit, to a second position, wherein the suction conduit is in communication with the vacuum conduit and the vent is completely isolated from the vacuum conduit, wherein the valve manifold is adapted to controllably select the proportion of vacuum pressure applied to the suction conduit from a range of pressure which includes complete isolation from vacuum to full vacuum pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A hand-holdable suction applicator comprising:
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a) a suction conduit for applying suction to a work surface; b) a suction pathway connectable to an external suction source and communicating with the suction conduit; c) a suction control valve to vary the suction applied from the external suction source to the suction conduit by variably constricting the suction pathway; and d) a variable vent communicating with the suction pathway to vent the suction pathway to atmosphere; wherein the variable vent is coupled with and varied by the suction control valve. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A suction applicator intended to be manually held and operated and capable of supplying from an external suction source, a controllable suction flow at a range of different intensities, the applicator comprising:
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a) a suction applicator tip to apply suction to a work surface; b) a suction connector connectable with an external suction source; c) a suction pathway extending between the suction connector and the applicator tip in an operative configuration of the applicator; d) vent pathway connectable to vent the suction pathway to atmosphere; and e) a manually operable suction control member to control suction at the applicator tip; wherein the vent pathway comprises a variable venting throat operable by the suction control member to vary the extent of venting of the suction pathway. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A suction applicator intended to be manually held and operated and comprising:
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a) a suction applicator tip to apply suction to a work surface; b) a suction connector connectable with a suction source; c) a suction pathway extending between the suction connector and the applicator tip in an operative configuration of the applicator; d) vent pathway connectable to vent the suction pathway to atmosphere; and e) a manually operable suction control member mounted on the applicator to control suction at the applicator tip; wherein the suction control member is selectively movable between a first position providing full venting of suction to atmosphere with no suction applied to the applicator tip and a second position with no venting to atmosphere and full suction applied to the applicator tip wherein the suction control member has an intermediate position and wherein, in the intermediate position, the suction pathway is partially constricted to apply partial suction to the applicator tip and is partially vented to atmosphere.
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- 23. A suction control valve for a suction applicator, the control valve comprising a suction port to communicate with a suction source, a suction applicator port for applying suction from the suction source to a work surface and a valve member movable to adjust the suction applied from the suction source to the suction applicator port and further comprising a vent port to communicate with atmosphere and with the suction applicator port wherein the valve member is movable to effect the communication of the vent port with the suction applicator port.
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26. A suction and adhesive applicator for medical use capable of being held and operated in one hand and comprising:
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a) a suction conduit communicable with a vacuum source and having a suction aperture for applying suction from the vacuum source to a work surface; b) at least one adhesive material reservoir; c) an adhesive material dispensing conduit communicable with the at least one reservoir for dispensing adhesive material from the at least one reservoir to the work surface and with the vacuum source for removal of material from the dispensing conduit; and d) a manually operable suction control valve disposed in communication with the suction conduit and adapted to control the communication of the suction and dispensing conduits with the vacuum source; wherein the suction control valve is movable between the following positions; I) an inoperative position; ii) a suction applying position wherein the suction conduit communicates with the vacuum source; and iii) a clearing position wherein the dispensing conduit communicates with the vacuum source. - View Dependent Claims (27)
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Specification