Surgical device with removable end effector
First Claim
1. A surgical device, comprising:
- a first handle member pivotably mounted to a second handle member;
a generally tubular elongate shaft projecting distally from the second handle member, the elongate shaft comprising a distal threaded surface;
an actuation rod disposed axially through the elongate shaft, the actuation rod operatively connected near its proximal end to the first handle member, and a distal end portion of the actuation rod comprising one of a ball member or a socketed prong assembly; and
an end effector assembly comprisingan outer casing having a proximal threaded surface complementary to the distal threaded surface of the elongate shaft,an end effector rod disposed axially through the outer casing, andan actuatable tool end, the end effector rod operably connected to the actuatable tool end;
wherein a proximal end portion of the end effector rod includes the other of a ball member or a socketed prong assembly which is complementary to and axially connectable with the opposite of a ball member or socketed prong assembly of the actuation rod.
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Abstract
A surgical device and end effector connection system therefor include an easy-to-engage mechanism for connecting a handle/shaft/actuation rod unit to an end effector. This mechanism may utilize an axially engageable inner ball/socket inner connection with a threaded outer connection, or an inner bayonet connection with either an outer bayonet connection or an outer threaded connection. In each of the embodiments, an outer portion of the end effector preferably is statically engaged with the shaft, and an inner portion of the end effector is engaged with the actuation rod such that axial movement of the actuation rod can actuate a tool end of the end effector. The present invention further relates to methods of use for the laparoscopy device.
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Citations
33 Claims
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1. A surgical device, comprising:
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a first handle member pivotably mounted to a second handle member; a generally tubular elongate shaft projecting distally from the second handle member, the elongate shaft comprising a distal threaded surface; an actuation rod disposed axially through the elongate shaft, the actuation rod operatively connected near its proximal end to the first handle member, and a distal end portion of the actuation rod comprising one of a ball member or a socketed prong assembly; and an end effector assembly comprising an outer casing having a proximal threaded surface complementary to the distal threaded surface of the elongate shaft, an end effector rod disposed axially through the outer casing, and an actuatable tool end, the end effector rod operably connected to the actuatable tool end; wherein a proximal end portion of the end effector rod includes the other of a ball member or a socketed prong assembly which is complementary to and axially connectable with the opposite of a ball member or socketed prong assembly of the actuation rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An end effector connection system comprising a first surgical device component and a second surgical device component, the connection system being configured for axially connecting the first surgical device component to the second surgical device component,
the first surgical device component comprising a generally tubular first member having a first rod disposed axially therethrough; -
wherein the first rod includes a socketed prong assembly comprising a plurality of prongs, at least one of which includes an indented socket; and wherein the generally tubular first member includes a first threaded surface; the second surgical device component comprising a generally tubular second member having a second rod disposed axially therethrough; wherein the second rod includes a ball structure, sized to be axially engagingly received between the plurality of prongs and at least partially into the indented socket; and wherein the generally tubular second member includes a second threaded surface complementary to and engageable with the first threaded surface. - View Dependent Claims (11, 12, 13)
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14. An end effector connection system comprising a first surgical device component and a second surgical device component, the connection system being configured for axially connecting the first surgical device component to the second surgical device component,
the first surgical device component comprising a generally tubular first member having a first rod disposed axially therethrough; -
wherein the first rod includes a male bayonet assembly comprising at least one boss extending from the first rod; and wherein the generally tubular first member includes a first threaded surface; the second surgical device component comprising a generally tubular second member having a second rod disposed axially therethrough; wherein the second rod includes a female bayonet assembly, configured to axially engagingly receive the male bayonet assembly; and wherein the generally tubular second member includes a second threaded surface complementary to and engageable with the first threaded surface.
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15. An end effector connection system comprising a first surgical device component and a second surgical device component, the connection system being configured for axially connecting the first surgical device component to the second surgical device component,
the first surgical device component comprising a generally tubular first member having a first rod disposed axially therethrough; -
wherein the first rod includes a first male bayonet assembly comprising at least one boss extending laterally from the first rod; and wherein the generally tubular first member includes a second male bayonet assembly comprising at least one boss extending laterally from the generally tubular first member; the second surgical device component comprising a generally tubular second member having a second rod disposed axially therethrough; wherein the second rod includes a first female bayonet assembly, configured to axially engagingly receive the first male bayonet assembly; and wherein the generally tubular second member includes a second female bayonet assembly, configured to axially engagingly receive the second male bayonet assembly.
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16. An end effector connection system comprising axially engageable first and second connecting means,
wherein the first connecting means comprises an inner connecting means between an end effector rod and an actuation rod and the second connecting means comprises an outer connecting means between an end effector casing and an outer shaft; said first connecting means requiring no rotation greater than 360°
to lockingly engage the end effector rod with the actuation rod.- View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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30. An end effector connection system comprising:
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Axially engageable first and second inner connecting members and axially engageable first and second outer connecting members, wherein the first and second inner connecting members are generally axially disposed in the first and second outer connecting members, respectively; Said first inner connecting member comprising a generally cylindrical body having a laterally protruding portion disposed near its distal end and said second inner connecting member having a receiving aperture configured to axially receive the first inner connecting member. - View Dependent Claims (31, 32)
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33. An end effector for a surgical device, the end effector comprising:
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an outer casing comprising a threaded surface; a distal tool end; and an end effector rod disposed at least partially through the outer casing, wherein a proximal end of the end effector rod comprises a connecting member that is selected from one of a male bayonet member, a female bayonet member, a ball member, and a socket member, and wherein the connecting member is configured to be axially connected to a surgical device.
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Specification