1. A foot pad structure for mounting to a receiving portion of an electronic system, the receiving portion having a base wall, a surrounding wall and a first through hole, the surrounding wall being outward extended from the base wall, and the first through hole being extended through the receiving portion, the foot pad structure comprising:
a retaining member being mounted to the receiving portion and being provided with a second through hole communicable with the first through hole; and
an elastic pad member being a hollow member having a top opening, the elastic pad member being fitted around the retaining member via the top opening, and an elastic compressible portion being formed below the top opening, the compressible portion being protruded beyond the receiving portion when the retaining member is mounted to the receiving portion, and an air chamber communicable with the second through hole being formed in the compressible portion.
2. The foot pad structure as claimed in claim 1, wherein the base wall inside the surrounding wall is provided with at least one position limiting hole, and the retaining member is correspondingly provided on an upper end surface with at least one upward protruded retaining pin for inserting into the position limiting hole, the retaining pin being heat molten to become deformed for filling up the position limiting hole, whereby when the molten retaining pin is cooled and set again, the retaining member is firmly held to the receiving portion.
3. The foot pad structure as claimed in claim 2, wherein the position limiting hole has a neck portion and a flared portion, and the retaining pin being extended through the neck portion, so that the heated and molten retaining pin fills up the flared portion of the position limiting hole.
4. The foot pad structure as claimed in claim 1, wherein the first through hole is extended through the base wall in a thickness direction thereof, and the second through hole is extended through between the upper end surface and a lower end surface of the retaining member to communicate with the first through hole.
5. The foot pad structure as claimed in claim 1, wherein the first through hole is extended through the surrounding wall in a thickness direction thereof, and the second through hole comprising a transverse through hole and a vertical through hole, the transverse through hole being transversely extended between two opposite sidewall surfaces at an upper end of the retaining member to communicate with the first through hole, the vertical through hole being longitudinally extended between the transverse through hole and a lower end of the retaining member, and the air chamber being communicable with external environment via the first through hole and the transverse and vertical through holes of the second through hole.
6. The foot pad structure as claimed in claim 1, wherein the retaining member is externally provided around a sidewall with a locating recess, and the elastic pad member is provided along an inner periphery of the top opening with a radially inward protruded locating portion for engaging with the locating recess on the retaining member.
7. The foot pad structure as claimed in claim 1, wherein the first through hole has an end located on the inner wall surface and another end bent toward to locate on the connecting wall surface, and wherein the second through hole comprising a transverse through hole and a vertical through hole, the transverse through hole being transversely extended between two opposite sidewall surfaces at an upper end of the retaining member to communicate with the first through hole, the vertical through hole being longitudinally extended between the transverse through hole and a lower end of the retaining member, and the air chamber being communicable with external environment via the first through hole and the transverse and vertical through holes of the second through hole.
8. A foot pad structure for mounting to a receiving portion provided of an electronic system, the receiving portion having a base wall and a surrounding wall, and the surrounding wall being outward extended from the base wall and being provided on an inner wall surface thereof with an longitudinally extended groove, the foot pad structure comprising:
a retaining member being mounted to the receiving portion and being provided with a second through hole communicable with the groove; and
an elastic pad member being a hollow member having a top opening, the elastic pad member being fitted around the retaining member via the top opening, and an elastic compressible portion being located below the top opening, the compressible portion being protruded beyond the receiving portion when the retaining member is mounted to the receiving portion, and an air chamber communicable with the second through hole being formed in the compressible portion.
9. The foot pad structure as claimed in claim 8, wherein the base wall inside the surrounding wall is provided with at least one position limiting hole, and the retaining member is correspondingly provided on an upper end surface with at least one upward protruded retaining pin for inserting into the position limiting hole, the retaining pin being heat molten to become deformed for filling up the position limiting hole, whereby when the molten retaining pin is cooled and set again, the retaining member is firmly held to the receiving portion.
10. The foot pad structure as claimed in claim 9, wherein the position limiting hole has a neck portion and a flared portion, and the retaining pin being extended through the neck portion, so that the heated and molten retaining pin fills up the flared portion of the position limiting hole.
11. The foot pad structure as claimed in claim 8, wherein the second through hole comprising a transverse through hole and a vertical through hole, the transverse through hole being transversely extended between two opposite sidewall surfaces at an upper end of the retaining member to communicate with the groove, the vertical through hole being longitudinally extended between the transverse through hole and a lower end of the retaining member, and the air chamber being communicable with external environment via the groove and the transverse and vertical through holes of the second through hole.
12. The foot pad structure as claimed in claim 8, wherein the retaining member is externally provided around a sidewall with a locating recess, and the elastic pad member is provided along an inner periphery of the top opening with a radially inward protruded locating portion for engaging with the locating recess on the retaining member.
13. An electronic system, comprising:
a housing;
a receiving portion provided on a bottom of the housing, comprising:
a base wall;
a surrounding wall being downward extended from the base wall; and
a first through hole being extended through the receiving portion; and
a foot pad structure, comprising:
a retaining member being mounted to the receiving portion and being provided with a second through hole communicable with the first through hole; and
an elastic pad member being a hollow member having a top opening, the elastic pad member being fitted around the retaining member via the top opening, and an elastic compressible portion being located below the top opening, the compressible portion being protruded beyond the receiving portion when the retaining member is mounted to the receiving portion, and an air chamber being formed in the compressible portion.
14. The electronic system as claimed in claim 13, wherein the base wall inside the surrounding wall is provided with at least one position limiting hole, and the retaining member is correspondingly provided on an upper end surface with at least one upward protruded retaining pin for inserting into the position limiting hole, the retaining pin being heat molten to become deformed for filling up the position limiting hole, whereby when the molten retaining pin is cooled and set again, the retaining member is firmly held to the receiving portion.
15. The electronic system as claimed in claim 14, wherein the position limiting hole has a neck portion and a flared portion, and the retaining pin being extended through the neck portion, so that the heated and molten retaining pin fills up the flared portion of the position limiting hole.
16. The electronic system as claimed in claim 13, wherein the first through hole is extended through the base wall in a thickness direction thereof, and the second through hole is extended through between the upper end surface and a lower end surface of the retaining member to communicate with the first through hole.
17. The electronic system as claimed in claim 13, wherein the first through hole is extended through the surrounding wall in a thickness direction thereof, and the second through hole comprising a transverse through hole and a vertical through hole, the transverse through hole being transversely extended between two opposite sidewall surfaces at an upper end of the retaining member to communicate with the first through hole, the vertical through hole being longitudinally extended between the transverse through hole and a lower end of the retaining member, and the air chamber being communicable with external environment via the first through hole and the transverse and vertical through holes of the second through hole.
18. The electronic system as claimed in claim 13, wherein the retaining member is externally provided around a sidewall with a locating recess, and the elastic pad member is provided along an inner periphery of the top opening with a radially inward protruded locating portion for engaging with the locating recess on the retaining member.
19. The electronic system as claimed in claim 13, wherein the first through hole has an end located on the inner wall surface and another end bent toward to locate on the connecting wall surface, and wherein the second through hole comprising a transverse through hole and a vertical through hole, the transverse through hole being transversely extended between two opposite sidewall surfaces at an upper end of the retaining member to communicate with the first through hole, the vertical through hole being longitudinally extended between the transverse through hole and a lower end of the retaining member, and the air chamber being communicable with external environment via the first through hole and the transverse and vertical through holes of the second through hole.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An orthopaedic surgical instrument assembly, comprising:
a guide block including a mounting bracket,
a cutting block comprising:
a base plate,
a pair of curved arms extending posteriorly from the base plate, each curved arm including a posterior surface and a cutting guide defined in the posterior surface, and
a tab that is pivotal between (i) a first position in which the tab is engaged with the mounting bracket to secure the guide block to the cutting block, and (ii) a second position in which the tab is disengaged from the mounting bracket such that the guide block is removable from the cutting block,
a stem trial positioned proximal to the base plate of the cutting block, and
an offset tool having a proximal end coupled to the stem trial, a distal end coupled to the cutting block, and a shaft of the offset tool extending through a cylindrical passageway defined in the guide block, wherein: (i) the proximal end defines a first axis and the distal end defines a second axis extending parallel to the first axis, and (ii) the proximal end of the offset tool is configured to pivot relative to the distal end.
2. The orthopaedic surgical instrument assembly of claim 1, wherein the guide block includes a locking mechanism configured to secure the guide block to the shaft of the offset tool.
3. The orthopaedic surgical instrument assembly of claim 2, wherein:
the shaft of the offset tool includes a plurality of slots, each slot corresponding to a predetermined reaming depth, and
the locking mechanism of the guide block includes a locking pin that is moveable between (i) a first position in which the locking pin is positioned in one of the plurality of slots to secure the guide block to the shaft of the offset tool, and (ii) a second position in which the locking pin is disengaged from the plurality of slots such that the guide block is removable from the shaft.
4. The orthopaedic surgical instrument assembly of claim 1, wherein the offset tool includes a locking mechanism configured to prevent rotation of the distal end relative to the proximal end.
5. The orthopaedic surgical instrument assembly of claim 4, wherein:
the shaft of the offset tool is a first shaft including the proximal end of the offset tool,
the offset tool includes a connecting body extending between the first shaft and a second shaft including the distal end of the offset tool, and
the locking mechanism includes a threaded rod positioned in a passageway defined in the first shaft, the threaded rod being moveable along the first axis between (i) a first position in which the threaded rod is spaced apart from the connecting body such that relative movement between the first shaft and the second shaft is permitted, and (ii) a second position in the threaded rod is engaged with the connecting body such that relative movement between the first shaft and the second shaft is prevented.
6. The orthopaedic surgical instrument assembly of claim 5, further comprising a handle and a connecting rod pivotally coupled to the handle, wherein the handle includes a plurality of internal threads that engage a plurality of external threads formed on the distal end of the first shaft, and the connecting rod having a driver head configured to be engaged with a distal end of the threaded rod.
7. The orthopaedic surgical instrument assembly of claim 1, further comprising an indicator to indicate a position of the proximal end relative to the distal end of the offset tool.
8. The orthopaedic surgical instrument assembly of claim 1, further comprising a cannulated reamer sized to receive a shaft of the offset tool.
9. An orthopaedic surgical instrument assembly, comprising:
a guide block including a mounting bracket and a locking mechanism,
a cutting block comprising:
a base plate, and
a pair of curved arms extending posteriorly from the base plate, each curved arm including a posterior surface and a cutting guide defined in the posterior surface,
a stem trial positioned proximal to the base plate of the cutting block, and
an offset tool comprising:
a proximal end coupled to the stem trial,
a distal end coupled to the cutting block, wherein: (i) the proximal end defines a first axis and the distal end defines a second axis extending parallel to the first axis, and (ii) the proximal end of the offset tool is configured to pivot relative to the distal end, and
a shaft including a plurality of slots, each slot corresponding to a predetermined reaming depth, wherein the locking mechanism of the guide block includes a locking pin that is moveable between (i) a first position in which the locking pin is positioned in one of the plurality of slots to secure the guide block to the shaft of the offset tool, and (ii) a second position in which the locking pin is disengaged from the plurality of slots such that the guide block is removable from the shaft.
10. The orthopaedic surgical instrument assembly of claim 9, wherein the cutting block includes a tab that is pivotal between (i) a first position in which the tab is engaged with the mounting bracket to secure the guide block to the cutting block, and (ii) a second position in which the tab is disengaged from the mounting bracket such that the guide block is removable from the cutting block.
11. The orthopaedic surgical instrument assembly of claim 9, wherein the offset tool includes a locking mechanism configured to prevent rotation of the distal end relative to the proximal end.
12. The orthopaedic surgical instrument assembly of claim 11, wherein:
the shaft of the offset tool is a first shaft including the proximal end of the offset tool,
the offset tool includes a connecting body extending between the first shaft and a second shaft including the distal end of the offset tool, and
the locking mechanism of the offset tool includes a threaded rod positioned in a passageway defined in the first shaft, the threaded rod being moveable along the first axis between (i) a first position in which the threaded rod is spaced apart from the connecting body such that relative movement between the first shaft and the second shaft is permitted, and (ii) a second position in the threaded rod is engaged with the connecting body such that relative movement between the first shaft and the second shaft is prevented.
13. The orthopaedic surgical instrument assembly of claim 12, further comprising a handle and a connecting rod pivotally coupled to the handle, wherein the handle includes a plurality of internal threads that engage a plurality of external threads formed on the distal end of the first shaft, and the connecting rod having a driver head configured to be engaged with a distal end of the threaded rod.
14. The orthopaedic surgical instrument assembly of claim 9, further comprising an indicator to indicate a position of the proximal end relative to the distal end of the offset tool.
15. The orthopaedic surgical instrument assembly of claim 9, further comprising a cannulated reamer sized to receive a shaft of the offset tool.
16. An orthopaedic surgical instrument assembly, comprising:
a guide block including a mounting bracket,
a cutting block comprising:
a base plate, and
a pair of curved arms extending posteriorly from the base plate, each curved arm including a posterior surface and a cutting guide defined in the posterior surface,
a stem trial positioned proximal to the base plate of the cutting block,
an offset tool comprising:
a proximal end coupled to the stem trial,
a distal end coupled to the cutting block, wherein: (i) the proximal end defines a first axis and the distal end defines a second axis extending parallel to the first axis, and (ii) the proximal end of the offset tool is configured to pivot relative to the distal end, and
a shaft extending through a cylindrical passageway defined in the guide block, wherein (i) the shaft of the offset tool is a first shaft including the proximal end of the offset tool, and (ii) the offset tool includes a connecting body extending between the first shaft and a second shaft including the distal end of the offset tool,
a locking mechanism configured to secure the guide block to the shaft of the offset tool and prevent rotation of the distal end relative to the proximal end, wherein the locking mechanism includes a threaded rod positioned in a passageway defined in the first shaft and being moveable along the first axis between (i) a first position in which the threaded rod is spaced apart from the connecting body such that relative movement between the first shaft and the second shaft is permitted, and (ii) a second position in the threaded rod is engaged with the connecting body such that relative movement between the first shaft and the second shaft is prevented, and
a handle comprising:
a plurality of internal threads that engage a plurality of external threads formed on the distal end of the first shaft, and
a connecting rod pivotally coupled to the handle, wherein the connecting rod having a driver head configured to be engaged with a distal end of the threaded rod.
17. The orthopaedic surgical instrument assembly of claim 16, wherein the cutting block includes a tab that is pivotal between (i) a first position in which the tab is engaged with the mounting bracket to secure the guide block to the cutting block, and (ii) a second position in which the tab is disengaged from the mounting bracket such that the guide block is removable from the cutting block.
18. The orthopaedic surgical instrument assembly of claim 17, wherein:
the shaft of the offset tool includes a plurality of slots, each slot corresponding to a predetermined reaming depth, and
the locking mechanism of the guide block includes a locking pin that is moveable between (i) a first position in which the locking pin is positioned in one of the plurality of slots to secure the guide block to the shaft of the offset tool, and (ii) a second position in which the locking pin is disengaged from the plurality of slots such that the guide block is removable from the shaft.
19. The orthopaedic surgical instrument assembly of claim 16, further comprising an indicator to indicate a position of the proximal end relative to the distal end of the offset tool.
20. The orthopaedic surgical instrument assembly of claim 16, further comprising a cannulated reamer sized to receive a shaft of the offset tool.