Applicator for C-shaped scalp clips

• US 4,637,395 A
• Filed: 10/02/1984
• Issued: 01/20/1987
• Est. Priority Date: 10/04/1983
• Status: Expired due to Term

• Current Assignee: Aesculap-Werke AG Vormals Jetter & Scheerer
• Original Assignee: AESCULAP WERKE AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Caspar, Wolfhard, Lutze, Theodor, Kienzle, Karl-Ernst
• Primary Examiner(s): Pinkham, Richard C.
• Assistant Examiner(s): Jackson, Gary
• Application Number:
  US06/657,269
• Time in Patent Office: 840 Days
• Field of Search: 128/334 R, 128/325, 128/346, 24/260, 24/261, 29/243.56, 29/225, 227/DIG. 1
• 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: A61B 17/083 Clips, e.g. resilient
• CPC Class Codes: Y10T 29/53783 Clip applier

Abstract

An applicator for C-shaped scalp clips, with which a plurality of scalp clips can be applied one after the other without having to insert an individual scalp clip into the applicator after each application. For this purpose, a magazine for receiving a plurality of scalp clips is provided and the scalp clips are arranged one behind the other in the magazine, the free ends of one scalp clip thereby resting against the bridge of the adjacent scalp clip, the magazine being open at the end to which the free ends of the legs of the scalp clips point, the scalp clips being guided in the magazine for displacement in the longitudinal direction thereof and moved towards the open end of the magazine by spring means, and the applying instruments, in a first position in which they are remote from one another, projecting downwardly and upwardly into the feed path of the scalp clips at the open end of the magazine such that a scalp clip which has been moved past the applying instruments abuts thereon with its laterally projecting edge regions adjoining the application surfaces and, in a second position in which the applying instruments are brought closer together, these instruments abutting on the application surfaces of the scalp clip held between them and thereby opening the scalp clip.

Claims

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

two applying instruments movable between first and second positions and positioned to engage the application surfaces of a scalp clip and displace them towards one another for opening said scalp clip when said applying instruments are in said second position,

a magazine that holds a plurality of the 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, and guiding the scalp clips for displacement in the longitudinal direction thereof, and

means for urging the scalp clips towards the open end of the magazine,

said applying instruments in the first position being remote from one another, projecting downwardly and upwardly into the feed path of the scalp clips at said open end such that one of said scalp clips moved by said urging means past said applying instruments abuts thereon with said laterally projecting edge regions adjoining the application surfaces and in the second position being closer together with said instruments abutting on the application surfaces of one of said scalp clips held between them and thereby opening said one scalp clip.

2. Applicator as defined in claim 1, wherein the legs (54, 56) of the scalp clips (53), in their closed state, converge towards their free ends.

3. Applicator as defined in claim 1, wherein one applying instrument (edge 21) is held stationary on the magazine (8).

4. Applicator as defined in claim 1, wherein one applying instrument (edge 25) is mounted on the magazine (8) for pivoting movement about an axis extending transversely to the longitudinal axis of the magazine and is adapted to be pivoted from the first to the second position by actuating means (branch elements 2 and 3).

5. Applicator as defined in claim 4, wherein the actuating means comprises two branch elements (2, 3), of which the first is rigidly secured to the magazine (8) while the second is pivotable towards the first, the pivotable branch element (3) being in operative connection with the pivotable applying instrument (24, 25).

6. Applicator as defined in claim 1, wherein the magazine (8) is designed in two parts, whereby the front part (9) including the open end of the magazine (8) and the applying instruments (edge 21, edge 25) is adapted to be detachably connected to a rear part (10) accommodating a plurality of scalp clips (53).

7. Applicator as defined in claim 6, wherein the two parts (9, 10) of the magazine are rigidly connected in their positions by means of a detachable flexible locking connection (30, 31).

8. Applicator as defined in claim 1, wherein the applying instruments have edges (21, 25) extending transversely to the longitudinal axis of the magazine and abutting on the application surfaces of the scalp clips (53).

9. Applicator as defined in claim 1, wherein a slider (35) is mounted for displacement in the magazine (8), the slider resting resiliently against the scalp clips (53) in the magazine (8) under the influence of the urging means (37) and pushing the scalp clips towards the open end.

10. Applicator as defined in claim 9, wherein the slider (35) is adapted to be secured in its retracted position.

11. Applicator as defined in claim 9, wherein the urging means is a spiral spring (37) located in the interior of the slider (35), the free end (38) of the coil spring being secured to the magazine (8) near the open end thereof.

12. Applicator as defined in claim 11, wherein the spiral spring is designed as a leaf spring (37) abutting on one wall of the magazine (8) adjacent the scalp clips (53).

13. Applicator for C-shaped clips which have two legs joined by a bridge and facing clamping jaws at their free ends, rearwardly projecting application surfaces at the regions where the legs and bridge meet, and laterally projecting edge regions adjoining the application surfaces, comprising

two applying instruments movable between first and second positions positioned to engage the application surfaces of a scalp clip and displace them towards one another for opening said scalp clip,

a magazine that holds a plurality of scalp clips arranged one behind the other in the magazine 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, and guiding the scalp clips in the magazine for displacement in the longitudinal direction thereof,

spring means for moving the scalp clips towards the open end of the magazine,

said applying instruments, in the first position being remote from one another, projecting downwardly and upwardly into the feed path of the scalp clips at said open end such that one of said scalp clips moved by said urging means past said applying instruments abuts thereon with said laterally projecting edge regions adjoining the application surfaces and in the second position being closer together with said instruments abutting on the application surfaces of one of said scalp clips held between them and thereby opening said one scalp clip, and,

a retaining element dipping into and being displaceable out of the feed path of the scalp clips, said retaining element also being disposed before the applying instruments by approximately the length of a scalp clip and retaining that clip which follows directly behind the scalp clip gripped by the applying instruments.

14. Applicator as defined in claim 13, wherein the retaining element (129, 130) is adapted to be displaceable simultaneously with the applying instruments such that it is withdrawn from the feed path when the applying instruments are in their second position (applying position) whereas it dips into the feed path when the applying instruments are in their first position (inoperative position).

15. Applicator as defined in claim 14, wherein the retaining element (129, 130) is rigidly connected to a movable applying instrument (24).

16. Applicator as defined in claim 15, wherein the movable applying instrument (24) and the retaining element (129, 130) rigidly connected thereto are arranged on opposite sides of the magazine (8).

17. Applicator as defined in claim 13, wherein the retaining element (129, 130) is pivotable about an axis extending transversely to the feed path of the scalp clips (53) in the magazine (8).

18. Applicator as defined in claim 13, wherein the retaining element has a retaining nose (130) resting against one of the laterally projecting application surfaces (edge 59) of the scalp clip (53) when the retaining element dips into the clip feed path.