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Publication Number
US-12402893-B2
Publication Date
2025-09-02
Expiration Date
Abstract
Disclosed is a disassemblable bone punch comprising a shaft and a handle, wherein the shaft comprises a first shaft part and a second shaft part, wherein the first shaft part comprises at least one first guiding element, and the second shaft part comprises at least one second guiding element, wherein the first shaft part is connected to the second shaft part such that the first guiding element is in engagement with the second guiding element and the first shaft part is movable parallel to a proximal-to-distal direction relative to the second shaft part, wherein the shaft is movable into a disassembly position, into a neutral position and into a punching position.
Core Innovation
The invention relates to a disassemblable bone punch comprising a shaft and a handle. The shaft comprises a first shaft part and a second shaft part, wherein the first shaft part comprises at least one first guiding element and the second shaft part comprises at least one second guiding element. The first shaft part is connected to the second shaft part such that the first guiding element is in engagement with the second guiding element and the first shaft part is movable relative to the second shaft part parallel to a proximal-to-distal direction.
The shaft is movable into a disassembly position, into a neutral position and into a punching position. The handle comprises a first handle portion and a second handle portion, wherein the first handle portion is movably connected to the second shaft part and the second handle portion is connected to the second shaft part. By a first movement of the first handle portion the shaft is displaceable from the neutral position into the punching position, and by a second movement of the first handle portion the shaft is displaceable from the neutral position into the disassembly position.
The first shaft part comprises a locking area that is movable from a neutral status to an unlocking status. When the locking area is in the neutral status, moving of the shaft into the disassembly position is prevented, and by the second movement the locking area is simultaneously moved into the unlocking status and the shaft is moved into the disassembly position. The locking area comprises a deflectable spring area, and the locking area is movable into the unlocking status by deflecting the spring area.
Claims Coverage
Independent claim clm-00001 defines a disassemblable bone punch with four inventive features: engaged guiding elements enabling parallel proximal-to-distal shaft movement, handle-driven displacement into punching and disassembly positions, a locking area preventing disassembly in neutral status, and a deflectable spring area that moves the locking area into unlocking status.
Engaged guiding elements enabling parallel proximal-to-distal shaft movement
A shaft comprising a first shaft part and a second shaft part with at least one first guiding element and at least one second guiding element, wherein the first guiding element is in engagement with the second guiding element and the first shaft part is movable relative to the second shaft part parallel to a proximal-to-distal direction.
Handle-driven displacement into punching and disassembly positions
A handle comprising a first handle portion and a second handle portion, wherein by a first movement of the first handle portion the shaft is displaceable from the neutral position into the punching position, and by a second movement of the first handle portion the shaft is displaceable from the neutral position into the disassembly position.
Locking area preventing disassembly in neutral status
A locking area in the first shaft part movable from a neutral status to an unlocking status, configured such that when the locking area is in the neutral status moving of the shaft into the disassembly position is prevented and by the second movement the locking area is simultaneously moved into the unlocking status and the shaft is moved into the disassembly position.
Deflectable spring area drives locking-area unlocking
The locking area comprises a deflectable spring area, wherein the locking area is movable into the unlocking status by deflecting the spring area.
The claims cover a disassemblable bone punch in which engaged guiding elements provide parallel proximal-to-distal relative movement of shaft parts, handle movements select punching versus disassembly positioning, and a locking area prevents disassembly in neutral status while enabling disassembly via unlocking that is achieved by deflecting a deflectable spring area.
Stated Advantages
Prevents moving of the shaft into the disassembly position when the locking area is in the neutral status.
Documented Applications
Not explicitly described in patent.
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