[미국특허]
Reciprocating needle drive without cables
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/00
A61B-017/04
출원번호
US-0810740
(2015-07-28)
등록번호
US-9724089
(2017-08-08)
발명자
/ 주소
Martin, David T.
Haberstich, Wells D.
Woodard, Jr., James A.
출원인 / 주소
Ethicon LLC
대리인 / 주소
Frost Brown Todd LLC
인용정보
피인용 횟수 :
0인용 특허 :
201
초록▼
An apparatus includes a housing, a drive gear assembly, and a drive arm. The housing defines a channel that receives a needle such that the needle is movable within the channel. The drive gear assembly is positioned within the housing and includes a first gear, a second gear, and a rack. The rack is
An apparatus includes a housing, a drive gear assembly, and a drive arm. The housing defines a channel that receives a needle such that the needle is movable within the channel. The drive gear assembly is positioned within the housing and includes a first gear, a second gear, and a rack. The rack is translatable relative to the housing and is coupled with the first and second gears to rotate the first and second gears. The drive arm is coupled with the drive gear assembly and engages the needle to move the needle within the channel of the housing.
대표청구항▼
1. An apparatus for operating on tissue, the apparatus comprising: (a) a housing defining a channel, wherein the channel is configured to receive a needle such that the needle is movable within the channel, wherein the channel is arcuate;(b) a drive gear assembly positioned proximate to the needle,
1. An apparatus for operating on tissue, the apparatus comprising: (a) a housing defining a channel, wherein the channel is configured to receive a needle such that the needle is movable within the channel, wherein the channel is arcuate;(b) a drive gear assembly positioned proximate to the needle, wherein the drive gear assembly comprises: (i) a first gear, and(ii) a rack, wherein the rack is translatable relative to the housing, wherein the rack comprises a first rack arm, wherein the first rack arm comprises a longitudinal row of teeth on an interior wall of the first rack arm, wherein the longitudinal row of teeth are configured to engage the first gear such that the rack is operable to translate to thereby rotate the first gear; and(c) a needle driver coupled with the drive gear assembly, wherein the needle driver is configured to engage the needle to thereby cause orbital movement of an entire length of the needle within the channel of the housing. 2. The apparatus of claim 1, wherein the housing comprises a base and a cover, wherein the base is coupled with the cover. 3. The apparatus of claim 2, wherein the channel is positioned within the cover. 4. The apparatus of claim 2, wherein the base defines a recess, wherein the rack is configured to translate within the recess of the base. 5. The apparatus of claim 1, wherein the needle driver comprises a drive pin configured to extend through the channel of the housing, wherein the drive pin is configured to engage the needle. 6. The apparatus of claim 1, wherein the rack further comprises a second rack arm and a channel extending between the first and second rack arms, wherein the channel is configured to receive the first gear. 7. The apparatus of claim 1, wherein the rack comprises a protrusion, wherein the protrusion is configured to maintain the longitudinal alignment of the first rack arm relative to the housing. 8. The apparatus of claim 1, wherein the needle is configured to move through the channel along a circular path. 9. The apparatus of claim 8, wherein the housing comprises a pawl, wherein the pawl is configured to engage the needle to prevent the needle from moving in a reverse direction. 10. The apparatus of claim 8, wherein the housing comprises a resilient member extending downwardly within the channel, wherein the resilient member is configured to engage the needle to prevent the needle from moving in a reverse direction. 11. The apparatus of claim 1, wherein the needle driver comprises a recess extending transversely across the needle driver. 12. The apparatus of claim 1, further comprising a handle portion, wherein the handle portion comprises an actuator configured to actuate the drive gear assembly. 13. The apparatus of claim 12, wherein the housing is rotatable relative to the handle portion. 14. The apparatus of claim 1, wherein the housing is configured to receive tissue, wherein the apparatus is configured to suture the tissue received within the housing. 15. The apparatus of claim 1, wherein the drive gear assembly further comprises a second gear positioned proximal to the first gear, wherein the rack is further coupled with the second gear such that the rack is operable to rotate the second gear. 16. The apparatus of claim 15, wherein the housing comprises a first pin and a second pin, wherein the first pin is configured to receive the first gear, wherein the second pin is configured to receive the second gear. 17. The apparatus of claim 15, wherein the first gear comprises a first plate and a first drive arm, wherein the first drive arm extends from the first plate, wherein the second gear comprises a second plate and a second drive arm, wherein the second drive arm extends from the second plate. 18. The apparatus of claim 1, wherein the needle driver comprises a drive arm. 19. An end effector comprising: (a) a first portion defining a circular channel, wherein the circular channel is configured to receive a needle such that the needle is movable within the circular channel; and(b) a second portion couplable with the first portion, wherein the second portion comprises: (i) a drive gear assembly, wherein the drive gear assembly comprises at least one gear,(ii) a rack, wherein the rack is translatable relative to the base, wherein the rack has at least one row of teeth configured to engage the at least one gear such that the rack is operable to translate to thereby rotate the at least one gear, and(iii) a needle driver coupled with the at least one gear, wherein the drive gear assembly is operable to actuate the needle driver, wherein the needle driver is configured to engage the needle to thereby move an entire length of the needle within the circular channel of the cover along a circular path defined by the circular channel. 20. An end effector comprising; (a) a housing defining a channel, wherein the channel is configured to receive a needle such that the needle is movable within the channel, wherein the channel is arcuate;(b) a drive gear assembly positioned proximate to the needle, wherein the drive gear assembly comprises: (i) a rack, wherein the rack is translatable within the housing from a first position to a second position, wherein the rack comprises a rack arm, wherein an interior wall of the rack arm comprises a longitudinal row of teeth, and(ii) a gear; wherein the gear comprises a plurality of teeth configured to engage the longitudinal row of teeth of the rack, wherein the rack is operable to rotate the gear when the rack is translated from the first position to the second position; and(c) a needle driver coupled with the gear of the drive gear assembly; wherein the needle driver is configured to engage the needle to thereby rotate the needle orbitally through the arcuate channel of the housing such that an entire length of the needle follows a circular path defined by the arcuate channel.
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