Impact and drive system for prosthesis deployment device
First Claim
1. A deployment device for a prosthesis, comprising:
- a driven assembly configured to apply a force to the prosthesis, wherein the driven assembly comprises a driven tube including a hollow longitudinal cavity and wherein the driven assembly further comprises a driven pin movably disposed in the hollow longitudinal cavity of the driven tube;
a base assembly including a handgrip portion, a trigger portion, and a driving assembly;
the driving assembly having a driving pin and a driving tube that are moved axially relative to the handgrip portion by activation of the trigger portion to drive the driven pin and the driven tube, respectively, in a forward implantation direction away from the base assembly;
wherein the driving pin and the driving tube are separate from the driven pin and the driven tube, respectively, such that the driving assembly may move independently from the driven assembly;
wherein the driven assembly is releasably coupled to the base assembly, and the driving tube and driving pin are axially aligned with the driven tube and driven pin, respectively;
wherein the driving assembly moves in the forward implantation direction relative to the handgrip portion by activating the trigger portion and impacts the driven pin and the driven tube such that the driven assembly applies the force to the prosthesis;
wherein the driving pin and the driving tube are lockably engaged to one another and when activating the trigger portion the driving pin and driving tube move together for a first distance in the forward implantation direction relative to the handgrip portion; and
wherein beyond the first distance, activation of the trigger portion causes the driving pin and the driving tube to unlockably disengage from one another and move relative to each other, such that the driving pin keeps advancing in the forward implantation direction to move the driven pin relative to the driven tube through the hollow longitudinal cavity of the driven tube.
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Accused Products
Abstract
A deployment device for a prosthesis includes a driving assembly, including a driving tube and a driving pin. The deployment device also includes a driven assembly, including a driven tube and a driven pin. The driven pin and the driven tube may be further associated with the prosthesis. The driving tube, the driving pin, the driven tube and the driven pin may all be located coaxially, with the driving pin configured to translate through a cavity in the driving tube and the driven pin configured to translate through a cavity in the driven tube. This configuration allows for a two-stage implantation process for the prosthesis, as the driving tube and driving pin may move together in one stage and may move relative to one another in a second stage.
171 Citations
22 Claims
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1. A deployment device for a prosthesis, comprising:
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a driven assembly configured to apply a force to the prosthesis, wherein the driven assembly comprises a driven tube including a hollow longitudinal cavity and wherein the driven assembly further comprises a driven pin movably disposed in the hollow longitudinal cavity of the driven tube; a base assembly including a handgrip portion, a trigger portion, and a driving assembly; the driving assembly having a driving pin and a driving tube that are moved axially relative to the handgrip portion by activation of the trigger portion to drive the driven pin and the driven tube, respectively, in a forward implantation direction away from the base assembly; wherein the driving pin and the driving tube are separate from the driven pin and the driven tube, respectively, such that the driving assembly may move independently from the driven assembly; wherein the driven assembly is releasably coupled to the base assembly, and the driving tube and driving pin are axially aligned with the driven tube and driven pin, respectively; wherein the driving assembly moves in the forward implantation direction relative to the handgrip portion by activating the trigger portion and impacts the driven pin and the driven tube such that the driven assembly applies the force to the prosthesis; wherein the driving pin and the driving tube are lockably engaged to one another and when activating the trigger portion the driving pin and driving tube move together for a first distance in the forward implantation direction relative to the handgrip portion; and wherein beyond the first distance, activation of the trigger portion causes the driving pin and the driving tube to unlockably disengage from one another and move relative to each other, such that the driving pin keeps advancing in the forward implantation direction to move the driven pin relative to the driven tube through the hollow longitudinal cavity of the driven tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14, 15)
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10. A deployment device for a prosthesis, comprising:
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a driven assembly configured to apply a force to the prosthesis, wherein the driven assembly comprises a driven tube including a hollow longitudinal cavity and wherein the driven assembly further comprises a driven pin disposed in the hollow longitudinal cavity of the driven tube; wherein the driven pin moves relative to the driven tube through the hollow longitudinal cavity of the driven tube; a base assembly including a handgrip portion, a trigger portion and containing a driving assembly; wherein the driving assembly comprises a driving tube and a driving pin disposed in the driving tube; wherein the driving tube and the driving pin are axially aligned with and separate from the driven tube and the driven pin and wherein the driven assembly is releasably coupled to the driving assembly; wherein the driving tube and the driving pin move in a forward implantation direction away from the handgrip portion by activating the trigger portion and impact the driven tube and the driven pin, respectively, such that the driven assembly applies the force to the prosthesis; wherein by activating the trigger portion the driven tube moves a first distance and wherein the driven pin moves a second distance in the forward implantation direction away from the handgrip portion; wherein the first distance is substantially greater than the second distance; wherein the driven pin is configured to push a first portion of the prosthesis the second distance in the forward implantation direction; wherein the driven tube is configured to push a second portion of the prosthesis in the forward implantation direction after the driven pin has moved the second distance and stopped; wherein the driving tube and the driving pin are engaged and move together when driving the driven pin the second distance by activating the trigger portion, and are disengaged and move relative to each other by activating the trigger portion after driving the driven pin the second distance; wherein the driving tube includes a longitudinal slot and wherein the driving pin includes a longitudinally extending portion and a laterally extending protruding portion that is fixed to the longitudinally extending portion and extends laterally through the longitudinal slot; wherein the deployment device includes a control hook that is fixed to and travels with the driving tube and that is configured to engage the laterally extending protruding portion; and wherein the control hook is engaged with the laterally extending protruding portion when the driving tube and the driving pin are engaged and moving together over the second distance. - View Dependent Claims (11, 12, 13)
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16. A deployment device for a prosthesis, comprising:
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a base assembly housing a driving assembly and having a handgrip portion and a trigger portion; the driving assembly comprising a driving pin and a driving tube that are moved axially relative to the handgrip portion by activation of the trigger portion; the driving tube comprising a first hollow longitudinal cavity, wherein the driving pin is configured to move through the first hollow longitudinal cavity; wherein the driving tube and the driving pin are lockably engaged and move together relative to the handgrip portion in a first stage of implantation, followed by a second stage of implantation in which the driving tube and the driving pin are unlockably disengaged and move relative to one another and relative to the handgrip portion; wherein in the first stage of implantation activation of the trigger portion causes the movement of the driving tube and the driving in together, and in the second stage of implantation activation of the trigger portion beyond the first stage of implantation causes the disengagement of the driving tube from the driving in and the relative movement; a driven assembly configured to apply a force to the prosthesis, wherein the driven assembly comprises a driven tube including a second hollow longitudinal cavity and wherein the driven assembly also includes a driven pin; the driven pin being configured to move relative to the driven tube through the second hollow longitudinal cavity of the driven tube; wherein the driving tube and the driving pin are axially aligned along a longitudinal axis with the driven tube and driven pin, respectively, when the driven assembly is releasably coupled to the base assembly; wherein the driving tube and the driving pin are separate from the driven tube and the driven pin; and wherein a distal end portion of the driving tube impacts a proximal end portion of the driven tube and wherein a distal end portion of the driving pin impacts a proximal end portion of the driven pin due to activation of the trigger portion, such that a distal end of the driven tube and a distal end of the driven pin apply the force to the prosthesis. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification