K-wire adaptor assembly
A surgical tool adaptor includes a distal interface member and a handle. The distal interface member includes a connecting element for connecting to a surgical tool. A K-wire connector is disposed in a central passageway for receiving therethrough a K-wire. The K-wire connector includes a locking element for locking the K-wire. A clutch mechanism is operatively connected to the distal interface member and to the K-wire connector, wherein in a first orientation of the clutch mechanism, the distal interface member and the K-wire connector move together, and in a second orientation of the clutch mechanism, the distal interface member is declutched from the K-wire connector, so that in the first orientation movement of the handle moves the distal interface member and the K-wire connector together, and in the second orientation the distal interface member and the K-wire connector move independently of each other.
1. An assembly comprising:
a surgical tool adaptor comprising a distal interface member and a handle, said distal interface member comprising a connecting element for connecting to a surgical tool, a central passageway being formed through said distal interface member and said handle;
a K-wire connector disposed in said central passageway for receiving therethrough a K-wire, said K-wire connector comprising a screw-thread capturing element for capturing the K-wire; and
a clutch mechanism operatively connected to said distal interface member and to said K-wire connector, wherein in a first orientation of said clutch mechanism, said distal interface member and said K-wire connector move together, and in a second orientation of said clutch mechanism, said distal interface member is declutched from said K-wire connector, such that in the first orientation movement of said handle moves said distal interface member and said K-wire connector together, and in the second orientation said distal interface member and said K-wire connector move independently of each other.
2. The assembly according to claim 1 , wherein in the second orientation, a movement of said handle moves said K-wire connector while said distal interface member remains stationary.
3. The assembly according to claim 1 , wherein in the second orientation, a movement of said handle moves said distal interface member while said K-wire connector remains stationary.
4. The assembly according to claim 1 , wherein in the second orientation, a movement of said handle moves said distal interface member in one direction and moves said K-wire connector in a different direction.
5. The assembly according to claim 1 , wherein said clutch mechanism is movably connected to said handle.
6. The assembly according to claim 1 , wherein said clutch mechanism comprises a first ratchet mechanism operatively connected between said distal interface member and said handle, wherein in a first direction of movement of said handle, said first ratchet mechanism causes said distal interface member and said handle to move together, and in a second direction of movement of said handle, said first ratchet mechanism declutches said distal interface member from said K-wire connector, such that in the first direction, movement of said handle moves said distal interface member and said K-wire connector together, and in the second direction, movement of said handle moves said distal interface member without moving said K-wire connector.
7. The assembly according to claim 6 , further comprising an adjustment knob operative to move said K-wire connector independently of said first ratchet mechanism.
8. The assembly according to claim 7 , further comprising a second ratchet mechanism operatively connected between said adjustment knob and said handle, wherein in the first direction of movement of said handle, said second ratchet mechanism declutches said K-wire connector with respect to said adjustment knob, and in the second direction of movement of said handle, said second ratchet mechanism causes said adjustment knob and said K-wire connector to move together, such that in the second direction, movement of said handle moves said adjustment knob and said K-wire connector together.
9. The assembly according to claim 1 , wherein said clutch mechanism comprises a ratchet assembly that comprises a mode transition element and a ratchet member formed with ratchet teeth arranged to engage teeth formed on said distal interface member, and wherein said handle engages said mode transition element; such that turning said handle causes axial movement of said mode transition element.
10. The assembly according to claim 1 , wherein said clutch mechanism comprises an auxiliary handle connected to said distal interface member, and wherein said handle of said surgical tool adaptor is connected to said K-wire connector and said handle of said surgical tool adaptor and said auxiliary handle are coaxial.
11. The assembly according to claim 1 , further comprising a K-wire disposed through said central passageway and coupled to said K-wire connector.
12. The assembly according to claim 1 , further comprising a surgical tool connected to said connecting element.