DE7318970U - PLIERS FOR SETTING TANTALUM CLIPS - Google Patents

Description

Applicant: Richard VoIf GmbH, 7134 Knittlingen, Pforzheimer

Street 22

Pliers for setting tantalum clips

The innovation relates to a pair of forceps for setting tantalum clips to ligate the fallopian tubes in women from a shaft with a proximal handle for opening and closing a distal clip forceps under observation by means of an optic.

The purpose of tying the fallopian tubes in women is Contraception so-called clips made of tantalum using special pliers under optical sight in the so-called applied gynecological laparoscopy. Two forceps units were used, namely the actual forceps for.

Put the clips and a smaller * pair of pliers or a movable one Hooks to better bring the fallopian tube into the area of the actual clip forceps and bring it better to be able to capture. In these known devices, the optics sit in a separate tube next to the clip pliers, what is disadvantageous because it is not possible to look directly into the area of the operating field, although the optics controls this field with a viewing direction of 160 ° and because this increases the diameter of the device.

The task of the innovation is once the diameter to keep the pliers with optics as low as possible and on the other hand to arrange the optics in such a way that directly into the forceps mouth or The operational rela tionship can be checked.

This object is achieved according to the innovation in that the aforementioned clip pliers the observation optics with guide tube runs centrally through a longitudinally vexing shaft for opening and closing the forceps jaws and one distally has directed straight outlook between the pliers jaws. This makes a smaller one compared to known clip pliers Cross-sectional shape achieved, which is essential for the patient, and the operating field can only be observed very directly will.

The clip pliers according to the innovation are shown below with reference to the drawing explained in detail. Show it:

Figure 1 is a side view ^{v of} the clip pliers according to the innovation,

FIG. 2 shows an interrupted longitudinal section through the Clip pliers according to Figure 1, -.

Figure 3 is an enlarged cross-section along the line A-B of Figure 2,

FIG. 4 shows an enlarged cross section along the line C-D in FIG.

The clip pliers consist of the shaft tube of the fine flooding sleeve 2, a pair of pliers jaws 5, 4, a scissor handle 5 and

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an inner optics guide tube 6, which is firmly connected distally to a cylinder ring 7 by LP tung or the like. A conical rotating part 8 mi -fc protrudes proximally into the flooding sleeve 2! Rinsrbund Q. u * l <l between the last ·! * © * Uüld Ί # 3 »F uhwm gi tube 6 is supported by a spacer sleeve 10. Grub screws 11 and 12 fix the parts 2, 6, 8, 9 and 10 together fixed unit.

The cylinder ring 7 is provided distally with two longitudinal recesses 13 in which the two forceps jaws 3 and 4 are supported with their legs 3a and 4a, respectively. In a corresponding rectangular ring groove in the cylinder ring 7 and in both pliers legs 3a, 4a, a Fixlerring 14 is fully inserted, which is slotted for the purpose of insertion into the ring groove and! the nest with SiT ^ i klsinsn 15 sit dsm% ίγΤ.j y> Haryj η.σ 7 Kit. iron? * fixed unit is connected.

The jaws 3, 4 with their legs 3a, 4a are designed to be resilient towards the outside in accordance with the shape shown. In order to ensure a seal in the instrument against escaping gas, for example CO ₂ , from the abdominal cavity, sealing rings 16, 17 are inserted distally and proximally in corresponding annular grooves in parts 7 and 10.

The S _c here handle 5 is composed in known manner of a pair of handles 18 and 19 which are interconnected by the hinge pin 20th A leaf spring that is fixed to the handle leg 18 by a knurled screw and the other end with a

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Eye 22 of the handle part 19 is hinged like so articulately connected, the pliers keeps in the open position. The pliers grip 18 is firmly connected to the flooding sleeve 2 by soldering.

Handle part 19 engages with a square recess at the free end (FIG. 4) via the projection 23a of the U-shaped lock (slide) 23 and is firmly connected to it by plumbing. The inner recess de:> lock is chosen so that there is space for the inner tube 6, so this is encompassed. The flooding sleeve 2, which is milled out at 24 for a length corresponding to the stroke of the pliers, is adapted to the outer shape of the lock. The design of the lock means that the axially movable unit of the pliers (pincer handle 19 with lock 23 and shaft tube 1) cannot be twisted.

The scissors handle 5 and the pair of pliers jaws 3, 4, however, need I.

do not lie in the same plane as drawn. It is even advantageous to set the handle about 30 - .45 ° compared to the pair of pliers jaws to be staggered because the surgeon holds the handle on the head when looking through the optics and thus when distracted Handle better.

The optics 25 with the eyepiece funnel 26 and in front of this laterally arranged nozzle 27 (90 ° or obliquely directed backwards) For the connection of a fiber optic cable, its truncated cone (not shown) engages in the cone of the rotating cone part 8

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and is firmly connected to the pliers by means of a union nut 28 and a screw 29. The lock is designed accordingly so that the light connection piece 27 is in the desired position, that is to say that the light guide cable going to the light projector hinders the doctor as little as possible. For precise adjustment, the spacer sleeve 10 therefore has an acute-angled circumferential groove 30 in which the fixing screw 11 engages. This adjustment option can also be used _{to bring the pair of pliers jaws 3}} 4 described above into the appropriate position for the handle 5. «

The optics has therefore to be able to look between the jaws 3.4 a viewing direction of 180 degrees to inside the operating.} Field. It stands distally in the cylinder ring 7 somewhat back (Fig.2) to. ·; not to be damaged.

The mode of action is as follows: The tantalum clip 31 is inserted between the two opened '": \ Zang.nbacken 3, 4. Then": the forceps with optics are introduced into the abdominal cavity in a known manner and under optics The doctor moves the gripped grip part 19 against the pressure of the spring 21 in the direction of the forceps grip part 18. The shaft 1 moves distally in relation to the optics, slides over the resilient forceps jaw parts 3, 4 and thereby closes the pair of forceps jaws and thus also the clip 31. The fallopian tube is clamped and the passage in the fallopian tube blocked. If the doctor no longer exerts any pressure on the forceps handle part 19, then the spring 21 pushes the handle into its starting position, with the shaft 1;

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slides back and the jaws 3, 4 also open again due to their spring action.

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Claims (5)

Dr. Hugo Wilcken; j j .j; ;,; Oipl.-lng. Thomas Wllcken>; * '"" *' - "" ** · '* · * Patent Attorneys, ^ 1 * {^ Lübeck, Breite Strasse 52-54 Dr.W./Al. Ff 7 58 88 Telephone 7 58 88 Applicant: Richard Wolf GmbH, 7134 Khittlingen, Pforzheimer Straße 22 Protection claims 1. Pliers for setting tantalum clips to prevent the Fallopian tubes of women, consisting of a shaft with proximal Handle for opening and closing a distal clip forceps while observing with an optical system, characterized in that that the observation optics (25) with guide tube (6) centrally through 3inen for opening and closing the forceps jaws (3, 4) longitudinally displaceable shaft (1) and distal one has between the jaws (3, 4) directed straight outlook. cn OO 2. Pliers according to claim 1, characterized in that distal between the shaft and the optic one with the distal end of the guide tube (6) rigidly connected ring cylinder (7) is located, which at the distal end with diametrically opposite longitudinal grooves (13) to accommodate the longitudinally immovable, spreading resilient legs (3a, 4a) of the pincer jaws (3, 4) protruding from the shaft (1). 3. Pliers according to claim 2, characterized in that the legs (3a, 4a) of the pliers jaws (3, 4) by a snap ring (14) are connected immovably to the ring cylinder (7) in the longitudinal direction. 7811t ItI I » 4. Pliers according to one of claims 1 to 3, characterized in that that the handle of the forceps (3, 4) consists of a scissors handle, one of which is rigid on the proximal side of the handle (18) with the optics guide tube "(6) and one of the shaft (1) on the proximal side surrounding flooding sleeve (2.) is connected, while the other is sprung spreading, a lower elongated slot (24) of the flooding sleeve (2) guided through handle part (19) through a U-shaped surrounding the guide tube (6) Fork (23) is connected to the shaft for moving the shaft. 5. Pliers according to one of claims 1 to 4, characterized in that that the plane of the scissors handle (18, 19) to the plane of the pliers jaws (3, 4) assumes an angle between about 30 - 45 °.