Fluid handling method and system and fluid interface apparatus usable therewith
First Claim
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1. A fluid handling system for use in controlling aspiration of tissue and fluid from a surgical site through a surgical handpiece having an aspiration passage, said system comprising:
- control means including a peristaltic pumping means being operable for aspirating body tissue and fluid from the site through the handpiece passage;
fluid interface means fluidly coupled to and between said handpiece and said pumping means, said interface means defining passage means for allowing aspiration of fluid from the handpiece to said pumping means; and
,said pumping means including at least a pair of rotatable head assemblies wherein each one of said head assemblies includes at least one roller, each of said head assemblies being mounted for rotational movement, and fluid conduits each being coupled to a respective one of said head assemblies and fluidly coupled to said passage means for allowing aspiration through the handpiece passage, said passage means and said conduits in response to operation of said head assemblies, said head assemblies being operably arranged with respect to each other wherein said rollers of said one head assembly is offset angularly with respect to said roller of the other head assembly so that during rotational movement thereof that the combined pumping pulsations produced by them and experienced at the surgical site are diminished relative to the individual pulsations generated by each of said head assemblies pumping alone.
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Abstract
A fluid handling system is disclosed for use with a surgical handpiece in microsurgery. Included is a fluid interface block apparatus which is structurally adapted to be removably and firmly secured to a control unit of the type which controls the fluidics of a microsurgery system. The system includes a plurality of peristaltic pumps arranged with respect to each other so as to minimize the effects of fluid pressure pulsations produced by each one.
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Citations
53 Claims
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1. A fluid handling system for use in controlling aspiration of tissue and fluid from a surgical site through a surgical handpiece having an aspiration passage, said system comprising:
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control means including a peristaltic pumping means being operable for aspirating body tissue and fluid from the site through the handpiece passage; fluid interface means fluidly coupled to and between said handpiece and said pumping means, said interface means defining passage means for allowing aspiration of fluid from the handpiece to said pumping means; and
,said pumping means including at least a pair of rotatable head assemblies wherein each one of said head assemblies includes at least one roller, each of said head assemblies being mounted for rotational movement, and fluid conduits each being coupled to a respective one of said head assemblies and fluidly coupled to said passage means for allowing aspiration through the handpiece passage, said passage means and said conduits in response to operation of said head assemblies, said head assemblies being operably arranged with respect to each other wherein said rollers of said one head assembly is offset angularly with respect to said roller of the other head assembly so that during rotational movement thereof that the combined pumping pulsations produced by them and experienced at the surgical site are diminished relative to the individual pulsations generated by each of said head assemblies pumping alone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A fluid handling system for use in controlling fluid flow relative to a surgical handpiece used in microsurgery, said system comprising:
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a control mechanism including a pumping assembly; a fluid interface apparatus mountable on said control mechanism and having fluid passage means; conduit means fluidly coupled to said fluid passage means and being operably connected to said pumping assembly for allowing control of fluid through said passage means from the handpiece in response to operation of said pumping assembly; and
,said pumping assembly including a peristaltic pump having a rotatable head assembly, and said conduit means including elastomeric tubing releasably mounted on said rotatable head assembly by releasable tensioning thereof so as to removably secure said interface apparatus against a mounting surface on said control mechanism. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A fluid handling system for use in controlling fluid flow from a surgical handpiece having an aspiration passage, said system comprising:
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control means including positive displacement pumping means being operable for aspirating body tissue and fluid from the site through the handpiece passages; fluid passage means for allowing aspiration of fluid from the handpiece to said pumping means; and
,said pumping means being coupled to said passage means for allowing aspiration therethrough in response to operation of said displacement pumping means, said pumping means inclining at least two positive pumping arrangements each one of which produces pumping pulsations and each being operably arranged with respect to each other so that during operation thereof the combined pumping pulsations produced by each of said arrangements and experienced at the surgical site are diminished relative to the individual pulsations generated by each of said arrangements pumping alone. - View Dependent Claims (27)
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28. A method for use in controlling aspiration of tissue and fluid from a surgical site through a surgical handpiece having an aspiration passage, said method comprising the steps of:
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providing peristaltic pumping means being operable for aspirating body tissue and fluid from the site through the handpiece passage; providing fluid interface means fluidly coupled to and between the handpiece and the pumping means; providing the interface means with passage means for allowing aspiration of fluid from the handpiece to the pumping means; providing the pumping means with at least a pair of rotatable head assemblies; coupling a fluid conduit to a respective one of the head assemblies for allowing aspiration through the conduit in response to operation of the head assemblies; and
,arranging the head assemblies with respect to each other so that when operating the combined pumping pulsations produced by them and experienced at the surgical site are diminished relative to the individual pulsations generated by each of the head assemblies alone. - View Dependent Claims (29, 30, 31, 32)
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33. An apparatus for use with a fluid handling system including a control mechanism including a peristaltic pumping assembly having a rotatable head assembly used for controlling fluid flow relative to a surgical handpiece used in microsurgery, said apparatus comprising:
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a fluid interface apparatus mountable on said control mechanism and having fluid passage means; conduit means fluidly coupled to said fluid passage means and being operably connected to the pumping assembly for allowing control of fluid through said passage means from the handpiece in response to operation of the pumping assembly; and
,said conduit means including elastomeric tubing releasably mountable on the rotatable head assembly by releasable tensioning thereof so as to facilitate removably securing said interface apparatus against a mounting surface on the control mechanism. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A fluid handling assembly for use in controlling fluid flow between a control mechanism having a mounting surface and a surgical handpiece used in microsurgery, said assembly comprising:
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a fluid interface apparatus mountable on the mounting surface of the control mechanism and having fluid passage means for allowing passage of fluid; and conduit means fluidly couplable to said fluid passage means and being operably connectable to the control mechanism for allowing control of fluid through said passage means and said conduit means including elastomeric tubing releasable mountable on the control mechanism by releasable tensioning thereof so as to removably secure said interface apparatus against the mounting surface on the control mechanism. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification