Applicator for C-shaped scalp clips

• US 4,854,317 A
• Filed: 02/05/1988
• Issued: 08/08/1989
• Est. Priority Date: 02/16/1987
• Status: Expired due to Fees

• Current Assignee: Aesculap-Werke AG Vormals Jetter & Scheerer
• Original Assignee: Aesculap-Werke AG Vormals Jetter & Scheerer
• Inventors: Braun, Karl
• Primary Examiner(s): Coven, Edward M.
• Assistant Examiner(s): Jackson, Gary
• Application Number:
  US07/152,761
• Time in Patent Office: 550 Days
• Field of Search: 227/19, 227/DIG. 1, 128/334 R, 128/325, 128/346, 128/325, 29/243.56
• US Class Current: 606/143
• CPC Class Codes: A61B 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: Y10T 29/53783 Clip applier

Abstract

In an applicator for C-shaped scalp clips with applying instruments in the form of a movable edge and a stationary edge and with a retaining element for the scalp clips, the moved edge can be brought closer still to the stationary edge while the retaining element is fixed in its open position. When the direction of motion is reversed, the movable edge immediately takes the retaining element back with it into its locking position. The movable edge is thus coupled with the pivotable retaining element by a slip coupling.

Claims

1. An applicator for C-shaped scalp clips which have two legs joined by a bridge and facing clamping jaws at their front ends, rearwardly protruding application surfaces at the regions where the legs and bridge meet and laterally projecting edge regions adjoining the application surfaces, said applicator comprising:

two applying instruments having laterally protruding movable and stationary edges, respectively, for engaging the application surfaces of a scalp clip and moving towards each other to open said scalp clip;

a magazine for holding a plurality of scalp clips arranged one behind the other, with the free ends of one scalp clip resting against the bridge of the adjacent scalp clip, said magazine being open at the end to which the free ends of the legs of the scalp clips point;

an elastic energy storing means for displacing the scalp clips in the longitudinal direction towards the open end of said magazine;

said applying instruments, in a first position in which said instruments are apart from each other, protruding downwardly and upwardly into the advance path of said scalp clips at the open end of said magazine, such that the laterally projecting edge regions adjoining the application surface of the one of said scalp clips which has been advanced past said applying instruments by said elastic energy storing means rests against the laterally protruding movable and stationary edges of the applying instruments;

said applying instruments, in a second position being closer together than in said first position with said instruments pressing on the application surfaces of said one of said scalp clips held between them thereby bending said one of said scalp clips open, wherein the invention comprises;

a retaining element which is simultaneously pivotable together with said movable edge and which dips into the path of advance of said scalp clips and is displaceable out of said path into an open position, said retaining element being disposed before said applying instruments by approximately the length of one scalp clip and being operable to hold back a scalp clip which follows adjacent the scalp clip gripped by said applying instruments;

said retaining element being simultaneously pivotable together with said movable edge from an initial position, said movable edge being coupled with the pivotable retaining element by a slip coupling such that when said movable edge is brought closer to said stationary edge during movement of the instruments into an intermediate position between said first and second position, said retaining element is fixed in its open position, and when the instruments are moved to their first position, said movable edge immediately returns said retaining element to its submerged position.

2. An applicator as defined in claim 1, characterized in that in its open position, said retaining element (22) rests against a stop (32).

3. An applicator as defined in claim 1, characterized in that two claws (34,35) protrude from a lever (7) carrying said movable edge (33), said claws resting in a biased, trailing manner against side surfaces of said retaining element (22) and taking said retaining element along with them.

4. An applicator as defined in claim 2, characterized in that two claws (34,35) protrude from a lever (7) carrying said movable edge (33), said claws resting in a biased, trailing manner against side surfaces of said retaining element (22) and taking said retaining element along with them.