Surgery – Instruments – Suture – ligature – elastic band or clip applier
Patent
1996-09-27
1998-03-24
Jackson, Gary
Surgery
Instruments
Suture, ligature, elastic band or clip applier
A61B 1704
Patent
active
057307466
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention concerns a device for positioning skin clips from a magazine in its housing.
BACKGROUND OF THE INVENTION
Extremely simple, spring-action skin clips that clip together the edges of a wound are known from U.S. Pat. No. 3,601,127 and FR-A419 096. The first clips mentioned consist of two metal webs, whose cross section is roughly U-shaped, which are connected to one another by an elastic strip. The edges of the wound are held by claw-type tips. The edges of the wound are perforated and thus associated infections and traumatic reactions cannot be ruled out. The second type of surgical clip mentioned consists of a single punched, curved part made of stainless spring steel, in which the edges of the wound are pinched together and turned up and retaining edges prevent the edges of the wound from slipping out. Medically, this solution is not optimal either, since here again the edges of the wound in the turned-up area can be perforated, and these infections are not accessible to visual control. Any infections that occur are thus discovered only relatively late.
A similar type of surgical clip is known from U.S. Pat. No. 4,217,902. This surgical clip has means whereby it can be grasped with a forceps and positioned. The surgical clips mentioned above are usually positioned manually by surgeons. The most comfortable skin clip is the one developed by the applicant in EP-B-224 500. Here, the edges of the wound are pressed against one another between two wavy pressure edges. Here there is no perforation. The appearance of the remaining scar is consequently free of puncture points, like those that occur in sutured wound closings or along the edges of wounds that were held together by means of the above-mentioned wound clips or by means of the known staples.
Despite the fact that the staples mentioned are pressed relatively deeply into the skin on both sides of the wound and consequently traumatic conditions can often be found in the wound area and the risk of infection is also relatively high, these staple systems have become very widespread. This is due to the fact that they are especially user-friendly. They come in disposable devices that consist of a housing in which a magazine with a fixed predetermined number of staples is placed. Once the staple-shaped skin clips are positioned and the magazine is empty or the wound closing complete, the whole device, including any unused skin staples, is thrown away.
The task of this invention is to create for the first time a device for positioning skin clips from a magazine in its housing, wherein the skin clips are the type mentioned at the beginning. This requires a completely different design to store and dispense the skin clips compared to the known devices.
The above-mentioned task is solved by a device for positioning skin clips from a magazine placed in its housing having at least one feed ratchet acting on all the skin clips held in the magazine. All the skin clips are advanced at the same time, and the skin clip in the lowest position can be put into a spread position. The feed ratchet has the shape of a sword-like rod designed with saw-teeth on both sides, whose lowest end is widened in the direction in which the skin clips are dispensed. The magazine has a backstop ratchet with spring retaining plates on both sides, which are next to all the skin clips in the magazine on both sides and let it move in only one direction. Since the skin clips used here do not have just the design of curved wire sections, as is the case with staples, they cannot be arranged next to one another, as is the case with devices for applying staples, but must be arranged over one another in stacked form.
Advantageous forms of embodiment of the object of the invention are claimed in the claims, and their meaning and action are explained in the description that follows.
DESCRIPTION OF THE DRAWINGS
The enclosed drawings show a preferred example of embodiment of the object of the invention and explain it in the description, with reference to the figures
REFERENCES:
patent: 4671278 (1987-06-01), Chin
Dubach Werner Fritz
Walder-Utz Alice
Createchnic AG
Jackson Gary
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