DE7330291U - OPERATING INSTRUMENTS, IN PARTICULAR PLIERS FOR TRIAL EXCISION, EXTERNAL BODY REMOVAL AND THE LIKE - Google Patents

Description

PATENT Attorney DIPL-ING. J. WENZEL 7 STUTTGART HAUPTMANNSREUTE 46

Karl Storz, Tuttlingen

Surgical instruments, especially forceps for
Trial excision, removal of foreign bodies and the like.

The innovation relates to a surgical instrument, in particular Forceps for trial excision, removal of foreign bodies and the like, with one that isolates the shaft of the instrument Sheathing.

Such surgical instruments are already known which E.g. are intended for coagulation to stop bleeding at the same time. For this purpose are the known instruments provided with an insulating shaft.

The introduction of these instruments into the body cavities takes place

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PATENT Attorney DIPL-ING. J. WENZEL 7 STUTTGART HAU PTMAN N 8 RE UTE

through endoscopes or trocars. Here, the instruments are subjected to a certain mechanical stress, which can make repairs necessary. Since the If the known sheathing mentioned is mostly designed as a shrunk-on insulating tube, such repairs can only be carried out by the manufacturer. In addition, this results in the disadvantage * deÄ cleaning Liquids that have occasionally entered between the insulation and the shaft, such as secretions and blood residues by the user of the instrument is not possible.

The innovation is therefore based on the task of avoiding the disadvantages mentioned and of the surgical instrument To improve the type mentioned at the beginning so that easy cleaning and repair is possible.

The solution to this problem by the invention is that the sheath of the shaft is arranged to be exchangeable is. This makes the stem itself very simple

Easily accessible and can be easily cleaned by the personnel using the surgical instrument and if necessary can also be repaired by yourself. In addition, this has the advantage that by simply replacing the sheath any damage to the same can be easily repaired.

Further advantages and details ^ sr Ksusrurg ergeber, see from the following description of an exemplary embodiment with reference to the drawing. In this show:

1 shows the insulating sleeve according to the innovation; Fig. 2 shows an associated pliers shaft and

3 shows the forceps-shaped part of the instrument for assembly with parts according to FIGS. 1 and 2.

The parts according to Figures 1, 2 and 3 simulate an operating instrument in the assembled state, which is not shown

PATENT Attorney DIPL-ING. J. WENZEL 7 STUTTGART HAUPTMANNSREUTE 46

de * - »Innovation. It is crucial here that the sheathing deo pliers shaft 4 is designed as an insulating sleeve 1 according to Figure 1, which can be easily replaced.

For this purpose, the pliers shaft 4 is provided at the front with a turned collar 2 according to FIG. 2 and also shows spacer balls or rollers 5, which are a certain small distance from the insulating sleeve 1 in the assembled state, not shown maintained.

In addition, such pliers shafts 4 are known and must therefore not be explained in detail.

It is operated by means of the pincer-shaped part according to FIG. 3 with the two halves of the forceps 8 and 9, which have a corresponding receptacle for the shaft 4 together with the Have insulating sleeve 1. For this purpose, a knurled nut 3 with a conical clamping part 7 is provided at the front end, with which, among other things, the insulating sleeve i is clamped in such a way that

PATENT ADVERTISER 011 - ", .- ING. J. WENZEL 7 STUTTGART HAUPTMANNSREUTE 46

that a length compensation can take place. In addition, a knurled screw 6 is provided on this handle part to dieee To attach jig.

To assemble the parts shown in FIGS. 1, 2 and 3, the shaft 4 according to FIG. 2 is first inserted into the sleeve 1 is inserted according to FIG. 1, whereupon the collar 2 of the shaft 4, turned at the front, is inserted into the sleeve 1 in a sealing manner will. In addition, the dimensioning is such that the sleeve 1 abuts the spacer balls or rollers 5 are now seated on the pliers shaft 4 so that they can be moved easily. Then the shaft 4 together with the Sleeve 1 inserted into the clamping device shown in FIG. 3 and clamped in by means of the knurled screw 3. This works similarly to the corresponding nuts on a collet, creating a completely tight seal between the insulating sleeve 1 according to the innovation and the shaft 4 is produced.

PATENT Attorney DIPL-ING. J. WENZEL 7 STUTTGART HAUPTMANNSREUTE 4β

The remaining connection of the end 10 on the shaft 4 with the handle according to Figure 3 is already known *

The innovation results in the great advantage that the insulating collar 1 can be used as a spare part at any time at the point of use tongue can be exchanged with a simple movement. All you have to do is solve the two mentioned Knurled screws on the handle part of the instrument are necessary, after which the forceps shaft 4 is removed together with the sleeve can be. The sleeve can then be easily pulled off the collar 2.

Since the sleeve 1 only loosely encases the shaft 4, better mobility and puncture is provided, especially in the case of flexible surgical instruments. Due to the above-mentioned spacer balls or rollers 5 between the sleeve 1 and the shaft 4, the clearance between these parts always remains. According to the innovation, these stand balls from Öder rollers 5 are placed at certain intervals on the pliers shaft.

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PATENT Attorney DIPL-ING. J. WENZEL 7 STUTTGART HAUPTMANNSREUTE 46

The mentioned knurled screw 3 is used for length compensation allows if the insulating sleeve 1 should shrink due to the action of heat, so that it is always under tension and sealing can be held. In addition, if the insulating sleeve 1 is damaged, it can of course be easily replaced recommend the same as the cost of the sleeve alone is low.

Claims (1)

w-bi PATENT Attorney DIPL-INQ. J. WENZEL 7 STUTTGART HAU PTMAN N S RE UTE 46 Protection claims 3. £ per & tion instrument, in particular forceps for the trial excision, removal of foreign bodies and the like., With a sheath insulating the shaft of the instrument, characterized in that the sheath H) of the shaft (4) is arranged to be exchangeable. 2. Operationsir.strument according to claim 1, characterized in that that the jacket is designed as an insulating sleeve (1), and that a clamping device (3> 6) is provided for length compensation for clamping the insulating sleeve at the distal end. 3. Surgical instrument according to claim? ,, characterized in that a knurled nut (3) with a conical clamping part (7) for fastening the insulating sleeve (1) is arranged at the distal end. PATENT Attorney DIPL-ING. J. WENZEL 7 STUTTGART HAUPTMANNSREUTE 46 4. Surgical instrument according to claim 1 or 2, characterized in that da £ at one or both ends of the shaft j (4) a collar (2) to seal the insulating sleeve (1) is ordered. 5. Surgical instrument according to claim 1 or more of the preceding claims, characterized in that the shaft (4) is provided on the outside with spacer balls (5) or rollers, around the insulating sleeve (1) at a distance from the To hold the shaft.