Gripping unit for application in minimally invasive surgery
First Claim
1. In a device for minimally invasive surgery, the device having an elongated shaft (8) defining a longitudinal direction and adapted to receive an optional additional instrument (7, 7a), an operating handle (6) at a first end of the shaft, and a gripping unit extending from a second end of the shaft;
- the improvement wherein the gripping unit comprises;
a base section (4) extending to the second end and terminating in a stationary jaw (2) rigidly attached thereto, the base section and the jaw comprising a first channel (9) extending in the longitudinal direction to receive the additional instrument (7, 7a) therein;
a push/pull rod (3) extending to the second end and connected to a movable jaw (1, 1a) via a pin joint (51) having a pin-joint axis; and
a coulisse (11a, 11b,
21) coupling the movable jaw to the stationary law, whereby the movable jaw (1, 1a) is rotatable generally about a jaw axis of the movable law which is generally parallel to the pin-joint axis;
wherein the stationary law comprises a recess (21), the movable law comprises a pair of prolongations (11a, 11b), and the coulisse comprises the recess (21) and the pair of prolongations (11a, 11b) being rotatable fitted therein; and
wherein the prolongations are formed on both sides of the first channel of the stationary law (2), whereby the channel is unobstructed;
whereby opening and closing of the movable jaw in relation to the stationary jaw is actuatable by a motion of the push/pull rod in the longitudinal direction.
1 Assignment
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Accused Products
Abstract
A gripping unit for application in Minimally Invasive Surgery includes a stationary jaw (2) rigidly attached to a base section (4), a movable jaw (1) connected via a joint (5) to a push/pull rod (3), and an operating handle (6). The stationary jaw (2), the movable jaw (1), the push/pull rod (3) and the base section (4) have, in the longitudinal direction of the gripping unit, a channel (9) to receive an additional instrument (7), designed so that the channels (9, 30) in the base section (4) and in the push/pull rod (3) together form a circular conduit.
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Citations
18 Claims
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1. In a device for minimally invasive surgery, the device having an elongated shaft (8) defining a longitudinal direction and adapted to receive an optional additional instrument (7, 7a), an operating handle (6) at a first end of the shaft, and a gripping unit extending from a second end of the shaft;
- the improvement wherein the gripping unit comprises;
a base section (4) extending to the second end and terminating in a stationary jaw (2) rigidly attached thereto, the base section and the jaw comprising a first channel (9) extending in the longitudinal direction to receive the additional instrument (7, 7a) therein; a push/pull rod (3) extending to the second end and connected to a movable jaw (1, 1a) via a pin joint (51) having a pin-joint axis; and a coulisse (11a, 11b,
21) coupling the movable jaw to the stationary law, whereby the movable jaw (1, 1a) is rotatable generally about a jaw axis of the movable law which is generally parallel to the pin-joint axis;wherein the stationary law comprises a recess (21), the movable law comprises a pair of prolongations (11a, 11b), and the coulisse comprises the recess (21) and the pair of prolongations (11a, 11b) being rotatable fitted therein; and
wherein the prolongations are formed on both sides of the first channel of the stationary law (2), whereby the channel is unobstructed;whereby opening and closing of the movable jaw in relation to the stationary jaw is actuatable by a motion of the push/pull rod in the longitudinal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- the improvement wherein the gripping unit comprises;
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14. In a device for minimally invasive surgery, the device having an elongated shaft (8) defining a longitudinal direction and adapted to receive an optional additional instrument (7, 7a), an operating handle (6) at a first end of the shaft, and a gripping unit extending from a second end of the shaft;
- the improvement wherein the gripping unit comprises;
a base section (4) extending to the second end and terminating in a stationary law (2) rigidly attached thereto, the base section and the law comprising a first channel (9) extending in the longitudinal direction to receive the additional instrument (7, 7a) therein; a push/pull rod (3) extending to the second end and connected to a movable law (1, 1a) via a pin joint (51) having a pin-loint axis; and a coulisse (11a, 11b,
21) coupling the movable law to the stationary law, whereby the movable law (1, 1a) is rotatable generally about a law axis of the movable law which is generally Parallel to the pin-joint axis,whereby opening and closing of the movable law in relation to the stationary law is actuatable by a motion of the push/pull rod in the longitudinal direction; wherein the stationary jaw comprises a recess (21), the movable jaw comprises a prolongation (11a, 11b), and the coulisse comprises the recess (21) and the prolongation (11a, 11b) being rotatably fitted therein; and
wherein the recess is offset from the pin joint in a direction transverse to the longitudinal direction and the pin-joint axis. - View Dependent Claims (15)
- the improvement wherein the gripping unit comprises;
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16. In a device for minimally invasive surgery, the device having an elongated shaft (8) defining a longitudinal direction and adapted to receive an optional additional instrument (7, 7a), an operating handle (6) at a first end of the shaft, and a gripping unit extending from a second end of the shaft;
- the improvement wherein the gripping unit comprises;
a base section (4) extending to the second end and terminating in a stationary jaw (2) rigidly attached thereto, the base section and the jaw comprising a first channel (9) extending in the longitudinal direction to receive the additional instrument (7, 7a) therein; a push/pull rod (3) extending to the second end and connected to a movable jaw (1, 1a) via a pin joint (51) having a pin-joint axis; and a coulisse (11a, 11b,
21) whereby the movable jaw (1, 1a) is rotatable generally about a jaw axis generally parallel to the pin-joint axis;whereby opening and closing of the movable jaw in relation to the stationary jaw is actuatable by a motion of the push/pull rod in the longitudinal direction; wherein the push/pull rod (3) includes a third channel (30) extending in the longitudinal direction; and wherein the first channel and the third channel together form a circular conduit. - View Dependent Claims (17, 18)
- the improvement wherein the gripping unit comprises;
Specification