Abdominal cavity organ retractor
First Claim
1. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
- an elongated device body having a first length and being insertable from a first end into an abdomen;
engagement means for displacing the organs, said engagement means being pivotably disposed in relation to said device body at said first end and having a second length less than said first length of said elongated device body; and
means for controlling said engagement means, said control means being operatively connected to said engagement means through said device body to pivot said engagement means outwardly in relation to said device body;
said control means being operable to pivot said engagement means outwardly from a retracted position to at least one intermediate position, said control means being further operable to pivot said engagement means outwardly from said at least one intermediate position to a fully extended position;
whereby said control means can be manipulated outside said abdomen at a second end of said elongated device body to control said engagement means.
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Accused Products
Abstract
A device which can be used in a laparoscopic surgical procedure is disclosed. The device is to be used in the surgical procedure as a retractor i.e. to displace and hold internal organs of a patient away from the organ which is the surgical objective. The device, which is essentially a long thin narrow tube, is partially inserted into the abdomen of a patient through a tiny incision in the abdomen wall. Retractor action is accomplished by the movement of levers, slides or buttons located on the end of the tube that remains outside of the patient. These levers, slides or buttons control the opening or closing of components, such as finger-like protuberances, that depend from the end of the tube that is within the patient. These protuberances push and hold floppy organs away from the surgical objective so that the surgical team can clearly view the organ using the laparoscope and remove the organ with tiny laparoscopic instruments. In this manner radical incisions, recovery time, and scarring are greatly reduced.
140 Citations
68 Claims
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1. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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an elongated device body having a first length and being insertable from a first end into an abdomen; engagement means for displacing the organs, said engagement means being pivotably disposed in relation to said device body at said first end and having a second length less than said first length of said elongated device body; and means for controlling said engagement means, said control means being operatively connected to said engagement means through said device body to pivot said engagement means outwardly in relation to said device body; said control means being operable to pivot said engagement means outwardly from a retracted position to at least one intermediate position, said control means being further operable to pivot said engagement means outwardly from said at least one intermediate position to a fully extended position; whereby said control means can be manipulated outside said abdomen at a second end of said elongated device body to control said engagement means. - View Dependent Claims (2, 3, 4)
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5. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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a device being at least partially into an abdomen having engagement means for accomplishing the displacement and means for controlling said engagement means, said control means including first and second lever arms depending from said device and biasing means, at least one said lever arm being movable through a path of movement; wherein said control means are biased to a set position and said engagement means are biased to a resting position and wherein forcible movement of said control means causes said engagement means to depart from said resting position and wherein terminating said force on said control means allows said control means to return to said set position and said engagement means to return to said resting position. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
a device being at least partially insertable into an abdomen having engagement means for accomplishing the displacement and means for controlling said engagement means, said control means including first and second lever arms depending from said device and biasing means, at least one said lever arm being movable through a path of movement, said control means being biased to a set position and said engagement means being biased to a resting position wherein movement of said control means from said jet position causes movement of said engagement means from said resting position and wherein movement of said control means toward said jet position causes movement of said engagement means towards said resting position.
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15. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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a device being at least partially insertable into an abdomen having an engagement means for accomplishing the displacement and means for controlling said engagement means, said control means including a slide button slidably mounted in a slide-path on said device and biasing means; wherein said control means are biased to a set position and said engagement means are biased to a resting position and wherein forcible movement of said control means causes said engagement means to depart from said resting position and wherein terminating said force on said control means allows said control means to return to said set position and said engagement means to return to said resting position. - View Dependent Claims (16, 17)
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18. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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an elongated hollow tube-like body defining a sheath, said sheath having front and rear ends; a rod slidably mounted within said sheath having two ends, a primary end defining a head and protruding from the rear end of said sheath and a secondary end providing engagement means normally residing within said sheath, said engagement means being biased to fan-out when slid outside of said sheath; a mechanism forcing said rod towards the rear of said sheath whereby the engagement means are forced to a closed position and held within said sheath whereby a force exerted on said head of said rod against the force of said mechanism slides the rod towards the front end of said sheath allowing said engagement means to exit from within said sheath assuming a fanned-out pattern. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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an elongated hollow tube-like body defining a sheath, said sheath having front and rear ends; a primary handle depending from said sheath, located substantially at the rear of said sheath; a rod slidably mounted within said sheath having two ends, a primary end defining a head and protruding from the rear end of said sheath, and a secondary end defining engagement means normally residing within said sheath, said engagement means being biased to fan-out when slid outside of said sheath; a secondary handle depending from the head of said rod; a mechanism forcing said rod towards the rear of said sheath whereby the engagement means are forced to a closed position and held within said sheath whereby squeezing the handles together forces the rod toward the front end of said sheath allowing said engagement means to exit from within said sheath assuming a fanned-out pattern. - View Dependent Claims (35, 36, 37, 38, 39)
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40. A laparoscopic retractor device for displacing tissue and organs within an abdominal cavity, comprising:
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an elongated tubular body member having an opening at a first end, elongated rod means positioned coaxially within said body member, a plurality of finger members normally at least partially residing within said body member and being pivotally secured to said rod means at a first end of said rod means adjacent said first end of said body member, an activating mechanism positioned at a second end of said body member and said rod means and cooperatingly engaged with said body member and said rod means to effect movement of said finger members, wherein movement of said activating mechanism from a rest position in a first direction to a set position extends said finger members outside said body member, said finger members pivoting outwardly in a fan-like pattern, and further wherein movement of said activating mechanism from said set position in a second direction to said rest position retracts said finger members into said opening, said finger members pivoting inwardly to retract into said body member. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A laparoscopic retractor device for displacing tissue and organs within an abdominal cavity, comprising:
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an elongated tubular body member having an opening at a distal end; elongated rod means positioned coaxially within said body member; means for displacing said tissue and organs pivotably secured to said rod means at a distal end adjacent said opening of said body member and normally at least partially residing within said body member; and means for reciprocatingly moving said rod means within said body member positioned at a proximal end of said rod means and said body member; wherein movement of said moving means from a rest position in a first direction to a set position extends said displacing means outside said body member such that said displacing means pivot outwardly in a fan-like pattern, and further wherein movement of said moving means in a second direction from said set position to said rest position retracts said displacing means into said body member, such that said displacing means pivot inwardly to retract into said body member. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A laparoscopic retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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a body portion insertable at a first end into an abdomen, said first body portion including a tubular member and a rod member reciprocatingly disposed within said tubular member; engagement means for displacing the organs, said engagement means being at least partially reciprocatingly retractable and extendable in relation to said body portion, said engagement means further being pivotably disposed in relation to said body portion at said first end; and means for controlling said engagement means, said control means being positioned at a second end of said body portion and being operatively connected to said rod member for reciprocatingly controlling said engagement means through said body portion to pivot said engagement means outwardly in relation to said device body; whereby said control means can be manipulated outside said abdomen to reciprocatingly control said engagement means. - View Dependent Claims (61, 62, 63)
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64. A retractor to be inserted into an abdominal cavity for displacement of organs within the cavity comprising:
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an elongated device body insertable from a first end into an abdomen; engagement means for displacing the organs, said engagement means being pivotably disposed in relation to said device body at said first end; and means for controlling said engagement means, said control means being linearly movable in relation to said device body and operatively connected to said engagement means through said device body to pivot said engagement means outwardly in relation to said device body; wherein by said control means can be manipulated outside said abdomen at a second end of said elongated device body to control said engagement means.
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65. A retractor to be inserted into an abdominal cavity for displacement of organs with the cavity comprising:
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a device body having a distal end insertable into an abdomen, said device body having a first cross-sectional surface area; engagement means including at least two members for displacing the organs, said engagement means being pivotably disposed in relation to said device body so as to be movable from a first position to a second position; and means for controlling said engagement means, said control means being operatively connected to said engagement means through said device body to pivot said engagement means outwardly in relation to said device body from said first position to said second position, said control means being manipulable from outside said abdomen to control said engagement means; wherein said at least two members are dimensioned so as to have a second cross-sectional surface area which is less than or equal to said first cross-sectional surface area of said device body when said engagement means is in said first position, and further having a third cross-sectional surface area which is greater than said first cross-sectional surface area of said device body when said engagement means is in said second position. - View Dependent Claims (66, 67, 68)
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Specification