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Publication Number
US-10881415-B2
Publication Date
2021-01-05
Expiration Date
Abstract
A surgical clip includes a spring pretensioning two outer double-armed clip parts and a double-armed clip part rotatably mounted. Each outer double-armed clip part includes one operating arm configured to be pressed together into an open clip position by an applying forceps and one clamping arm. The middle clip part has a clamping arm arranged between the clamping arms of the two outer clip parts and an operating arm arranged between the operating arms of the two outer clip parts. The middle clip part's operating arm is configured to be opened in relation to either of the operating arms of the two outer clip parts by the applying forceps engaging a respective side of the middle clip part's operating arm associated with the operating arm of either of the two outer clip parts to open the middle clip part's clamping arm and the respective middle clip part's clamping arm.
Core Innovation
The disclosed invention relates to a surgical clip comprising two outer double-armed clip parts and a double-armed middle clip part, where all three clip parts are mounted to be rotatable about an axis of rotation. Each outer double-armed clip part includes one operating arm configured to be pressed together into an open clip position by an applying forceps and one clamping arm. The middle clip part includes a clamping arm arranged between the clamping arms of the two outer clip parts and an operating arm arranged between the operating arms of the two outer clip parts.
The middle operating arm is configured to be closed in relation to either of the operating arms of the outer clip parts by the applying forceps engaging a respective side of the operating arm of the middle clip part associated with the operating arm of either of the two outer clip parts, respectively. This closing action opens the clamping arm of the middle clip part in relation to either of the clamping arms of the two outer clip parts, respectively. A spring pretensioning pretensions the two outer clip parts into a closed clip position in which the clamping arms of the two outer clip parts and the middle clip part abut one another.
A further refinement defines rotational structure using a circular roller section and a quarter-circular bearing shell arranged coaxially with identical diameters on the two outer clip parts, with a circular roller section also included on the middle clip part. Other embodiments define ring geometries in which the three clip parts each comprise a ring with a circular ring opening to form a common ring opening, where a spring, a bearing sleeve, or a shaft is inserted to form a pivot bearing. The described clip configuration enables sequential clamping of two vessels without releasing the first, and the document further addresses bypass operation by connecting open vessel ends and vessel-wall piercing for vessel connections.
Claims Coverage
The partial content provides four independent claims (clm-00001, clm-00010, clm-00011, clm-00013/and clm-00014). Across these independent claims, the main inventive features cover a three-part rotatable surgical clip with a forceps-driven opening/closing relationship of the middle operating arm and the middle clamping arm relative to either outer clip part, together with spring pretensioning into an abutting closed position and specific bearing/pivot structures using coaxial roller sections and bearing shells or a common ring opening pivot bearing.
Three-part rotatable double-armed clip with forceps-opened middle clamping arm
Two outer double-armed clip parts are rotatable about an axis of rotation and each includes an operating arm configured to be pressed together into an open clip position by applying forceps and one clamping arm. A double-armed middle clip part is rotatable about the axis of rotation, with a clamping arm arranged between the clamping arms of the two outer clip parts and an operating arm arranged between the operating arms of the two outer clip parts. The middle operating arm is configured to be closed in relation to either of the operating arms of the two outer clip parts by the applying forceps engaging a respective side of the operating arm of the middle clip part associated with the operating arm of either of the two outer clip parts, in order to open the clamping arm of the middle clip part relative to either of the clamping arms of the two outer clip parts.
Spring pretensioning into an abutting closed clip position
A spring pretensioning the two outer clip parts into a closed clip position is defined in which the clamping arms of the two outer clip parts and the middle clip part abut one another.
Coaxial roller section and quarter-circular bearing shell bearing structure
The two outer clip parts each comprise a circular roller section between the operating and clamping arms and a quarter-circular bearing shell, arranged coaxially with an outer diameter of the roller section and a diameter of the bearing shell being identical. The middle clip part comprises a circular roller section between the operating and clamping arms.
Common ring opening pivot bearing with ring-shaped clip parts
The three clip parts each comprise a ring with a circular ring opening for forming a common ring opening, and the spring, a bearing sleeve or a shaft is inserted in the common ring opening to form a pivot bearing.
Leg spring with winding body in a common opening
The spring is designed as a leg spring, the winding body of which is at least partially accommodated in a common opening of the three clip parts.
The independent claims in the provided partial content jointly require a surgical clip with two outer double-armed rotatable clip parts and a double-armed middle rotatable clip part whose middle operating arm is closed relative to either outer operating arm by forceps to open the middle clamping arm relative to the selected outer clamping arm, while a spring pretensions the parts into a closed position with clamping-arm abutting. They further define bearing or pivot structures using either coaxially arranged roller and bearing shell elements on the clip parts or a common ring opening with a spring and/or a bearing sleeve or shaft to form a pivot bearing, including a leg-spring configuration with a winding body received in a common opening.
Stated Advantages
Sequential clamping of two vessels without releasing the first.
Bypass operation by turning vessel ends inside out and clamping them with a middle ring.
Documented Applications
Sequential clamping of two vessels without releasing the first, including bypass operation.
Connecting open vessel ends and vessel-wall piercing for vessel connections.
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