Adapter assemblies for interconnecting electromechanical handle assemblies and surgical loading units
First Claim
1. A force transmitting assembly of an adapter assembly, comprising:
- a rotatable drive shaft including;
a proximal portion configured to be operatively coupled to a driving member of a handle assembly;
a distal portion including a threaded portion; and
a flange supported on and extending from the drive shaft;
a proximal strain sensor coupled to the drive shaft and disposed adjacent the flange such that longitudinal movement of the drive shaft imparts a force on the proximal strain sensor via the flange;
a distal strain sensor distally spaced from the proximal strain sensor, the flange being disposed between the proximal and distal strain sensors; and
a distal drive member having a proximal end coupled to the threaded portion of the drive shaft and a distal end configured to be operatively coupled to a driven member of a surgical loading unit, wherein rotation of the drive shaft longitudinally moves the distal drive member relative to the drive shaft to actuate the surgical loading unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A force transmitting assembly of an adapter assembly includes a rotatable drive shaft, a strain sensor, and a drive member. The drive shaft includes a proximal portion, a distal portion, and a flange. The distal portion includes a threaded portion. The strain sensor is coupled to the drive shaft and disposed adjacent the flange such that longitudinal movement of the drive shaft imparts a force on the strain sensor via the flange. The distal drive member has a proximal end rotatably coupled to the threaded portion of the drive shaft and a distal end configured to be operatively coupled to a driven member of a surgical loading unit. Rotation of the drive shaft longitudinally moves the drive member relative to the drive shaft to actuate the surgical loading unit.
1121 Citations
16 Claims
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1. A force transmitting assembly of an adapter assembly, comprising:
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a rotatable drive shaft including; a proximal portion configured to be operatively coupled to a driving member of a handle assembly; a distal portion including a threaded portion; and a flange supported on and extending from the drive shaft; a proximal strain sensor coupled to the drive shaft and disposed adjacent the flange such that longitudinal movement of the drive shaft imparts a force on the proximal strain sensor via the flange; a distal strain sensor distally spaced from the proximal strain sensor, the flange being disposed between the proximal and distal strain sensors; and a distal drive member having a proximal end coupled to the threaded portion of the drive shaft and a distal end configured to be operatively coupled to a driven member of a surgical loading unit, wherein rotation of the drive shaft longitudinally moves the distal drive member relative to the drive shaft to actuate the surgical loading unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An adapter assembly for selectively interconnecting a surgical loading unit and a handle assembly that is configured to actuate the surgical loading unit, the adapter assembly comprising:
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a housing configured and adapted for selective connection with the handle assembly; an outer tube having a proximal end supported by the housing and a distal end configured to be coupled with the surgical loading unit, and a force transmitting assembly extending at least partially through the outer tube and including; a rotatable drive shaft including; a proximal portion configured to be operatively coupled to a rotatable driving member of the handle assembly; a distal portion including a threaded portion; and a flange supported on and extending from the drive shaft; a proximal strain sensor coupled to the drive shaft and affixed to the housing, the proximal strain sensor disposed adjacent the flange such that longitudinal movement of the drive shaft imparts a force on the proximal strain sensor via the flange; a distal strain sensor distally spaced from the proximal strain sensor, the flange being disposed between the proximal and distal strain sensors; and a distal drive member having a proximal end coupled to the threaded portion of the drive shaft and a distal end configured to be operatively coupled to a translatable driven member of the surgical loading unit, wherein rotation of the drive shaft longitudinally moves the distal drive member relative to the drive shaft to actuate the surgical loading unit. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A surgical instrument, comprising:
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a handle assembly including a rotatable driving member; an adapter assembly including; a housing coupled with the handle assembly; an outer tube having a proximal end supported by the housing and a distal end; and a force transmitting assembly extending at least partially through the outer tube and including; a rotatable drive shaft including; a proximal portion operatively coupled to the rotatable driving member of the handle assembly; and a distal portion including a flange and a threaded portion; a proximal strain sensor coupled to the drive shaft and affixed to the housing, the proximal strain sensor disposed adjacent the flange such that longitudinal movement of the drive shaft imparts a force on the proximal strain sensor via the flange; a distal strain sensor distally spaced from the proximal strain sensor, the flange being disposed between the proximal and distal strain sensors; and a distal drive member having a proximal end coupled to the threaded portion of the drive shaft and a distal end; and a surgical loading unit configured to be actuated by the handle assembly and including a translatable driven member operatively coupled to the distal end of the distal drive member of the force transmitting assembly, wherein rotation of the drive shaft longitudinally moves the distal drive member relative to the drive shaft to actuate the surgical loading unit. - View Dependent Claims (16)
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Specification