US 4,286,598 AGranted

Forceps for isolation of part of blood vessel during anastomosis

OwnerNikolai N. Kapitanov, Natalia P. Petrova +1inventors

InventorsNikolai N. Kapitanov, Natalia P. Petrova, Vladimir V. Ippolitov

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Abstract

A forceps for isolation of a part of a blood vessel during anastomosis comprises hinged levers and an automatic lock to hold the levers in the closed position. There are rings at one end of each lever, by which the forceps is held. The other ends of the levers bear jaws arranged at an angle toward the levers. One jaw has a longitudinal groove open on the side facing the opposite jaw, while the other jaw is made in the form of a ridge whose width is the same as that of the groove so that the ridge enters the groove as the jaws are pulled together. Each jaw has a removable part that does not extend to the jaw ends. This invention can advantageously be used to divide a part of a vessel into two parts along its longitudinal axis during anastomosis with mechanical suturing or ligation.

Claims14

Dependent claims

A surgical instrument for treating a tubular body member, vessel, duct, or the like, by clamping portions of the tubular body member at longitudinally spaced regions while providing access to a portion of the body member between the clamped portions comprising:

a pair of jaws;
means for opening and closing said jaws;
a first of said jaws defining a channel for receiving a tubular body member to be clamped, a second of said jaws being shaped to fit into and substantially close the top of said channel to define a longitudinally-extending bounded space within which a tubular body member is to be confined;
said jaws mutually coacting upon closure to provide clamping action suitable for closing off a tubular body member at two longitudinally-spaced regions, with at least a portion of the bounded space located between the clamping regions, so that, when a tubular body member is positioned in the bounded space and the jaws are closed, longitudinally spaced portions of the tubular body member are closed off, a portion of one of said jaws located between the clamping regions and partly defining the bounded space being movable with respect to the remainder of said one of said jaws and removable from said bounded space to allow access to the bounded space located between the clamping regions whereby that portion of a tubular body member located between said clamping regionsis accessible for treatment.

1 more element

A hemostatic forceps for isolating and occluding a portion of a tubular body member during anastomosis which has two hinged levers having proximal and distal ends and each lever being formed of three portions, a handle portion, a jaw portion and a connecting portion which unites the handle and jaw portions, said levers being pivoted at the juncture of said handle portions and said connecting portion, said handle portions each being provided at their proximal end with a ring for holding the forceps, and each of said levers including a lock member located intermediately between said ring and said distal end of said lever and extending from said lever towards the other said lock member, said lock member being mutually engagable when said handle portions are pivoted towards one another and when engaged said lock members retain said jaw portions in a coapted mutual relation;

said connecting members contain a curved portion in a closely spaced relation to said pivot, said distal end of said connecting members being angled laterally from the plane in which the handle portions pivot;
said jaw portions extend substantially perpendicularly from the corresponding sides of the distal ends of the connecting portions;
wherein the improvement comprises:
a removable coapting part disposed within and oriented lengthwise in each of the jaw portions, a first removable part is generally U shaped in cross section and forms three sides of a groove which extends lengthwise of the associated jaw portion, a second removable part associated with the other jaw portion is generally rectangular in cross section and is sized so as to project into substantially the entire length of the U shaped groove of the first removable part when the jaw portions are closed;
each of said removable parts has a first and a second retaining means for positioning said removable parts within the respective jaw portions, said first retaining means is a pintle and gudgeon coupling at one end of said jaw portion, said second retaining means is a plate pivotally mounted in such fashion that the other end of said removable part is engagable by said plate, whereby rotation of said plate disengages said removable part and permits removal thereof;
the combined result of the various coapting elements is to occlude a tubular body member which is placed in said groove whereby substantially all body fluids residing in the tubular member are squeezed out of that portin of the tubular member which is engaged by said removable parts prior to complete occlusion of the tubular member by said jaw portions at both the proximal and distal ends of said removable parts;
removal of said removable parts permits access to that portion of said tubular member which is substantially free of contained body fluids for further operative procedures;
and lock members retain said jaw portions in the coapting relationship.

5 more elements

Dependencies are inferred from the claim text.