Robotic device with compact joint design and an additional degree of freedom and related systems and methods
First Claim
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1. A robotic device comprising:
- (a) an elongate device body comprising;
(i) a first driveshaft rotatably disposed within the device body, the first driveshaft comprising;
(A) a first lumen defined along a length of the first driveshaft; and
(B) a first drive bevel gear operably coupled to the first driveshaft;
(i) a second driveshaft rotatably disposed within the first lumen, the second driveshaft comprising;
(A) a second lumen defined along a length of the second driveshaft; and
(B) a second drive bevel gear operably coupled to the second driveshaft; and
(iii) a third driveshaft rotatably disposed within the second lumen;
(b) a first shoulder joint comprising;
(i) a conversion body operably coupled to at least one of the first, second, or third driveshafts;
(ii) a rotation body rotatable in relation to the conversion body, the rotation body comprising first and second openings;
(iii) a first inner bevel gear rotatably coupled to the second drive gear;
(iv) a first spur gear operably coupled to the first inner bevel gear through the first opening;
(v) a second spur gear operably coupled to a first spur gear;
(vi) a second inner bevel gear operably coupled to the second spur gear through the second opening; and
(vii) an output gear rotatably coupled to the second inner bevel gear; and
(c) a first arm operably coupled to the first shoulder joint.
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Abstract
The embodiments disclosed herein relate to various robotic and/or in vivo medical devices having compact joint configurations and at least three degrees of freedom. Other embodiments relate to various medical device components, including forearms having grasper or cautery end effectors, that can be incorporated into certain robotic and/or in vivo medical devices.
486 Citations
17 Claims
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1. A robotic device comprising:
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(a) an elongate device body comprising; (i) a first driveshaft rotatably disposed within the device body, the first driveshaft comprising; (A) a first lumen defined along a length of the first driveshaft; and (B) a first drive bevel gear operably coupled to the first driveshaft; (i) a second driveshaft rotatably disposed within the first lumen, the second driveshaft comprising; (A) a second lumen defined along a length of the second driveshaft; and (B) a second drive bevel gear operably coupled to the second driveshaft; and (iii) a third driveshaft rotatably disposed within the second lumen; (b) a first shoulder joint comprising; (i) a conversion body operably coupled to at least one of the first, second, or third driveshafts; (ii) a rotation body rotatable in relation to the conversion body, the rotation body comprising first and second openings; (iii) a first inner bevel gear rotatably coupled to the second drive gear; (iv) a first spur gear operably coupled to the first inner bevel gear through the first opening; (v) a second spur gear operably coupled to a first spur gear; (vi) a second inner bevel gear operably coupled to the second spur gear through the second opening; and (vii) an output gear rotatably coupled to the second inner bevel gear; and (c) a first arm operably coupled to the first shoulder joint. - View Dependent Claims (2, 3, 4)
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5. A robotic device comprising:
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(a) an elongate device body comprising; (i) a first driveshaft rotatably disposed within the device body, the first driveshaft comprising a first lumen defined along a length of the first driveshaft; (i) a second driveshaft rotatably disposed within the first lumen, the second driveshaft comprising a second lumen defined along a length of the second driveshaft, wherein the second driveshaft is operably coupled to a second driveshaft drive gear; and (iii) a third driveshaft rotatably disposed within the second lumen, wherein the third driveshaft is operably coupled to a third driveshaft drive gear; (b) a first shoulder joint comprising; (i) a shoulder housing operably coupled to at least one of the first, second, or third driveshafts, the shoulder housing comprising; (A) a top opening defined in the shoulder housing, the top opening comprising at least one coupling feature, wherein the third driveshaft is disposed through the top opening; (B) a side opening defined in the shoulder housing; and (C) a cavity defined in the shoulder housing, wherein the third driveshaft drive gear is disposed within the cavity; and (ii) a rotation body rotatable in relation to the shoulder housing, the rotation body comprising first and second openings; (iii) a first driven bevel gear rotatably coupled to the third driveshaft drive gear; (iv) a first spur gear operably coupled to the first driven bevel gear through the first opening; (v) a second spur gear rotatably coupled to the first spur gear; (vi) a second driven bevel gear operably coupled to the second spur gear through the second opening; and (vii) an output gear rotatably coupled to the second driven bevel gear; and (c) a first arm operably coupled to the first shoulder joint. - View Dependent Claims (6, 7, 8)
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9. A robotic device comprising:
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(a) an elongate device body sized and constructed to be disposable through a port or an incision into a cavity of a patient, the elongate device body comprising a first set of driveshafts comprising; (i) a first driveshaft rotatably disposed within the device body, the first driveshaft comprising a first lumen extending along a length of the first driveshaft and a first drive gear operably coupled to a distal end of the first driveshaft; (i) a second driveshaft rotatably disposed within the first lumen such that the second driveshaft is disposed within and coaxial with the first driveshaft, the second driveshaft comprising a second lumen extending along a length of the second driveshaft and a second drive gear operably coupled to a distal end of the second driveshaft; and (iii) a third driveshaft rotatably disposed within the second lumen such that the third driveshaft is disposed within and coaxial with the second driveshaft, the third driveshaft comprising a third drive gear operably coupled to a distal end of the third driveshaft; (b) a shoulder joint comprising; (i) a conversion body comprising an opening defined in the conversion body, wherein the third driveshaft is rotatably disposed through the opening; (ii) a rotation body comprising first and second openings; (iii) a plurality of gears comprising; (A) a first inner gear rotatably coupled to the second drive gear; (B) a first spur gear operably coupled to the first inner gear through the first opening; (C) a second spur gear operably coupled to the first spur gear; (D) a second inner gear operably coupled to the second spur gear through the second opening; and (E) an output gear rotatably coupled with the second inner gear; and (c) an arm operably coupled to the output gear. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification