Sliding shaft surgical instrument
First Claim
1. Surgical sliding shaft instrument including:
- a guide element, a carriage in sliding engagement with said guide element, a grip element comprising a grip trunk, a stationary grip part, wherein one end of the stationary grip part is pivotably linked a to the guide element and wherein the stationary grip part is releasably interlocked with the guide element, and a movable grip part, wherein the movable grip part is pivotably linked to the grip trunk and wherein the moveable grip part is in operable engagement with the carriage via a push part which extends through a through-hole in the grip trunk, a compression spring for pretensioning of the moveable grip part in a starting or rest position, and a locking element for releasably connecting of the grip trunk and guide element, wherein the compression spring (28) is integrated in the carriage (14) and pretensions both the carriage (14) as well as the movable grip part (22) in the starting or rest position, wherein the compression spring (28) lies against a register (32) provided at the proximal end of the carriage (14) and wherein the register (32) is in touching contact with the push part (24), and wherein the inter-locking element (26) includes a spring-tensioned catch hook (42), which is in engagement with a locking hook (24) provided at the proximal end of the guide element (12).
1 Assignment
0 Petitions
Accused Products
Abstract
A surgical sliding shaft instrument (10) comprising a guide element (12), which is provided with a carriage (14). It further includes a grip part element (16), which is comprised of a stationary grip part (18), one end of which is provided with a grip trunk (20) pivotably linked to the guide element (12) and also releasably inter-locked with the guide element (12). It further includes a movable grip part (22), which is pivotally connected to the grip trunk (20) and, via a push part (24) extending through a slit in the grip trunk (20), is in operable engagement with the carriage (14). A compression spring (28) tensions or biases the movable grip part (22) in a rest position. An inter-locking element (26) serves for releasable connecting of the grip trunk (20) and guide element (12). The compression spring (28) is integrated in the carriage (14) and pretensions both the carriage (14) as well as the movable grip part (22) in a rest position.
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Citations
8 Claims
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1. Surgical sliding shaft instrument including:
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a guide element, a carriage in sliding engagement with said guide element, a grip element comprising a grip trunk, a stationary grip part, wherein one end of the stationary grip part is pivotably linked a to the guide element and wherein the stationary grip part is releasably interlocked with the guide element, and a movable grip part, wherein the movable grip part is pivotably linked to the grip trunk and wherein the moveable grip part is in operable engagement with the carriage via a push part which extends through a through-hole in the grip trunk, a compression spring for pretensioning of the moveable grip part in a starting or rest position, and a locking element for releasably connecting of the grip trunk and guide element, wherein the compression spring (28) is integrated in the carriage (14) and pretensions both the carriage (14) as well as the movable grip part (22) in the starting or rest position, wherein the compression spring (28) lies against a register (32) provided at the proximal end of the carriage (14) and wherein the register (32) is in touching contact with the push part (24), and wherein the inter-locking element (26) includes a spring-tensioned catch hook (42), which is in engagement with a locking hook (24) provided at the proximal end of the guide element (12). - View Dependent Claims (2, 5, 7, 8)
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3. Surgical sliding shaft instrument including:
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a guide element, a carriage in sliding engagement with said guide element, a grip element comprising a grip trunk, a stationary grip part, wherein one end of the stationary grip part is pivotably linked to the guide element and wherein the stationary grip part is releasably interlocked with the guide element, and a movable grip part, wherein the movable grip part is pivotably linked to the grip trunk and wherein the moveable grip part is in operable engagement with the carriage via a push part which extends through a through-hole in the grip trunk, a compression spring for pretensioning of the moveable grip part in a starting or rest position, and a locking element for releasably connecting of the grip trunk and guide element, wherein the compression spring (28) is integrated in the carriage (14) and pretensions both the carriage (14) as well as the movable grip part (22) in the starting or rest position, wherein the compression spring (28) lies against a register (32) provided at the proximal end of the carriage (14) and wherein the register (32) is in touching contact with the push part (24), wherein the inter-locking element (26) includes a spring-tensioned catch hook (42), which is in engagement with a locking hook (24) provided at the proximal end of the guide element (12; and
wherein the instrument further includesa rotational adjustment device (30) for adjusting the angular orientation of the carriage (14). - View Dependent Claims (4)
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6. Surgical sliding shaft instrument including:
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a guide element, a carriage in sliding engagement with said guide element, a grip element comprising a grip trunk, a stationary grip part, wherein one end of the stationary grip part is pivotably linked to the guide element and wherein the stationary grip part is releasably interlocked with the guide element, and a movable grip part, wherein the movable grip part is pivotably linked to the grip trunk and wherein the moveable grip part is in operable engagement with the carriage via a push part which extends through a through-hole in the grip trunk, a compression spring for pretensioning of the moveable grip part in a starting or rest position, and a locking element for releasably connecting of the grip trunk and guide element, wherein the compression spring (28) is integrated in the carriage (14) and pretensions both the carriage (14) as well as the movable grip part (22) in the starting or rest position, wherein the compression spring (28) lies against a register (32) provided at the proximal end of the carriage (14) and wherein the register (32) is in touching contact with the push part (24), wherein the inter-locking element (26) includes a spring-tensioned catch hook (42), which is in engagement with a locking hook (24) provided at the proximal end of the guide element (12), and wherein the grip trunk (20) is connected with the guide element (12) via a releasable pivot pin (54).
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Specification