Surgical instrument for suturing tubular organs with U-shaped staples
First Claim
1. A surgical instrument for suturing tubular organs with U-shaped staples, comprising:
- a supporting body;
a supporting strip fixed in position with respect to said supporting body;
two supporting semibushes;
a first of said supporting semibushes made fast with one of its ends on said supporting body;
a second of said supporting semibushes made fast with one of its ends on said supporting strip and establishing, when brought together with said first supporting semibush, the supporting member of the instrument having a cylindrical bore for the tubular organ to pass;
a staple body;
a staple strip locked in position with respect to said staple body;
two staple semibushes;
a first of said staple semibushes made fast with one of its ends on said staple body and externally embracing said first supporting semibush;
a second of said staple semibushes made fast with one of its ends on said staple strip and externally embracing said second supporting semibush, and adapted to establish, when brought together with said first staple semibush, the staple member of the instrument having a cylindrical bore for the tubular organ to pass;
an annular gap adapted for accommodating the walls of the tubular organ being sutured, said gap being established by said staple semibushes when the latter embrace said supporting semibushes;
staples;
depressions for said staples to bend, said depressions being situated on the outer cylindrical surface of said supporting semibushes;
a means for preventing said staple semibushes from being disjoined during the operation and for fixing the position of the centre of the hole thereof with respect to the position of the centre of the hole of said supporting semibushes so as to attain a uniform suturing of the tubular organ being handled;
radial slots in said staple semibushes, arranged opposite said respective depressions on said supporting semibushes;
magazine semirings mounted detachably with respect to said staple semibushes;
staple semirings mounted detachably with respect to said staple semibushes;
magazines mounted movably in said radial slots of said staple semibushes so as to be replaced after the operation;
ejectors for said staples to push out, said ejectors being accommodated inside said magazines;
curvilinear grooves in said magazine semirings, said grooves being open-end ones for said magazines to be mounted with a possibility of being replaced after the operation;
curvilinear grooves in said staple semirings, said grooves being open-end ones for said staple ejectors to accommodate;
pivots of said magazines, arranged in said curvilinear grooves of said magazine semirings and adapted to engage movably said grooves;
pivots of said staple ejectors, arranged in said curvilinear grooves of said staple semirings so as to movably engage said grooves;
recesses for said magazines to reload, said recesses being made on the outer walls of said staple semibushes and arranged along the radius coinciding with the radius of said radial slots;
an automatic restrictor of a synchronous movement of said magazines and said ejectors in a radial direction towards the centre;
a mechanical actuator for said magazine semirings to traverse;
a lug of said mechanical actuator of said magazine semirings, made fast on said magazine semiring of said first staple semibush;
a strip of said mechanical actuator of said magazine semirings, said strip being traversable with respect to said staple body, the first end of said strip being threaded, while the second end is adapted to interact with said lug;
a sliding nut of said mechanical actuator of said magazine semirings, said nut being fitted on the threaded end of said strip;
a mechanical actuator for said staple semirings to traverse;
a double-arm actuating lever of said mechanical actuator of said staple semirings, said lever being engaged involutely with said staple semirings.
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Accused Products
Abstract
The instrument is characterized in that provision is made therein for a means preventing the staple semibushes from being disjoined in the course of operation and fixing the position of the center of the hole of said staple semibushses with respect to the position of the center of the hole of the supporting semibushes so as to provide a uniform suturing of the tubular organ, whereas the magazines are so mounted as to be replaced after the operation, for which purpose the magazine and staple semirings have through curvilinear grooves and are detachable with respect to said staple semibushes, the outer walls of the latter having recesses for said magazines to reload, said recesses being arranged along the radius coinciding with the radius of the radial slots in said staple semibushes. In addition, provision is made in the instrument for an automatic restrictor of synchronous radial movement of said magazines and said ejectors towards the center.
106 Citations
7 Claims
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1. A surgical instrument for suturing tubular organs with U-shaped staples, comprising:
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a supporting body; a supporting strip fixed in position with respect to said supporting body; two supporting semibushes; a first of said supporting semibushes made fast with one of its ends on said supporting body; a second of said supporting semibushes made fast with one of its ends on said supporting strip and establishing, when brought together with said first supporting semibush, the supporting member of the instrument having a cylindrical bore for the tubular organ to pass; a staple body; a staple strip locked in position with respect to said staple body; two staple semibushes; a first of said staple semibushes made fast with one of its ends on said staple body and externally embracing said first supporting semibush; a second of said staple semibushes made fast with one of its ends on said staple strip and externally embracing said second supporting semibush, and adapted to establish, when brought together with said first staple semibush, the staple member of the instrument having a cylindrical bore for the tubular organ to pass; an annular gap adapted for accommodating the walls of the tubular organ being sutured, said gap being established by said staple semibushes when the latter embrace said supporting semibushes; staples; depressions for said staples to bend, said depressions being situated on the outer cylindrical surface of said supporting semibushes; a means for preventing said staple semibushes from being disjoined during the operation and for fixing the position of the centre of the hole thereof with respect to the position of the centre of the hole of said supporting semibushes so as to attain a uniform suturing of the tubular organ being handled; radial slots in said staple semibushes, arranged opposite said respective depressions on said supporting semibushes; magazine semirings mounted detachably with respect to said staple semibushes; staple semirings mounted detachably with respect to said staple semibushes; magazines mounted movably in said radial slots of said staple semibushes so as to be replaced after the operation; ejectors for said staples to push out, said ejectors being accommodated inside said magazines; curvilinear grooves in said magazine semirings, said grooves being open-end ones for said magazines to be mounted with a possibility of being replaced after the operation; curvilinear grooves in said staple semirings, said grooves being open-end ones for said staple ejectors to accommodate; pivots of said magazines, arranged in said curvilinear grooves of said magazine semirings and adapted to engage movably said grooves; pivots of said staple ejectors, arranged in said curvilinear grooves of said staple semirings so as to movably engage said grooves; recesses for said magazines to reload, said recesses being made on the outer walls of said staple semibushes and arranged along the radius coinciding with the radius of said radial slots; an automatic restrictor of a synchronous movement of said magazines and said ejectors in a radial direction towards the centre; a mechanical actuator for said magazine semirings to traverse; a lug of said mechanical actuator of said magazine semirings, made fast on said magazine semiring of said first staple semibush; a strip of said mechanical actuator of said magazine semirings, said strip being traversable with respect to said staple body, the first end of said strip being threaded, while the second end is adapted to interact with said lug; a sliding nut of said mechanical actuator of said magazine semirings, said nut being fitted on the threaded end of said strip; a mechanical actuator for said staple semirings to traverse; a double-arm actuating lever of said mechanical actuator of said staple semirings, said lever being engaged involutely with said staple semirings. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An attachment to said staple body of a surgical instrument, comprising:
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a strip; a means for holding said strip to said staple body; an operative end of said strip having a radial projection to the outer surface of which said supporting semibush is positively locked, provided with two rows of said depression; a pivot; a lever movably mounted on said pivot at the centre of said supporting semibush at the supporting operative end of said strip; a first end of said lever shaped as a segment having on its inner surface said curvilinear grooves, and on its outer surface, a number of teeth for an involute meshing with said actuating lever; a second end of said lever adapted for said staple semiring and said segment to return into the initial position after the suturing has been over.
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Specification