DE7808070U1 - Parametrium clamp - Google Patents

Description

company

Oswald Leibinger

Josef-Lang-Strasse 22

7202 Mühlheim-Stetten

Dipl.-Ing.

Rolf Charier

Patent attorney _ q. _ κ $

f Rehlingenstrasse 8 · P.O. Box 260 ||

D-8900 Augsburg 31

Telephone 08 21/3 6015 + 3 6016

Telex 533275

Postal checking account: Some nos. 1547 89-801

7539/01 / Ch / Fr Augsburg, March 7, 1978

Parametrium clamp

The innovation concerns a parametrium clamp with a |

mouth provided with retaining grooves, the jaw parts of which via ff

a box are connected to each other and from there merge into two branches, which are at the respective end carry two interlocking locking parts.

Parametrium clamps are used in hysterectomy to capture the parametrium. Since the parametrium is very well supplied with blood, the clamps must be in the parametrium in vaginal or abdominal hysterectomy grasp and hold securely. In the hysterectomy, the parametrium is held sideways by means of the clamp pulled, with the risk that the parametrium slips partially out of the clamp = this case should never occur, as there is a risk of damage

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bleeding persists. On the other hand, the mouth of the clamp should be designed so that a vascular injury does not occur, since in such a case, the danger there is bleeding.

Hysterectomy clamps of various designs are known, which differ from each other primarily in the design of the mouth. It is for example known to form the retaining grooves as intermeshing teeth running longitudinally in the mouth. However, there is a risk that if the clamp exerts a lateral pull on the parametrium this partially slides out of the mouth. Therefore, at the front end and possibly in the A transverse toothing is provided in the middle "of the mouth. However, this toothing harbors the risk of vascular crushing because of the specific surface loading is very high in the area of the teeth. It is also known to have the grooves in the two halves of the mouth to run differently to each other, for example crosswise to each other, whereby the danger the sliding of the parametrium out of the clamp is somewhat reduced, but not prevented. Here, too, it is known to provide the aforementioned transverse toothing. With the known hysterectomy clamps the training of the mouth was primarily improved, but without the rest of the structure of the clamps to pay sufficient attention. It has been shown that the end through which the two jaw parts are connected to each other, usually- is not sufficiently dimensioned. The same also applies to the Industries that usually have insufficient crossbar

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have lity, so that there is a risk that the If you touch the clamp, the two locking parts that are locked together loosen. However, this case should never occur, as the risk of bleeding to death is extremely high. The danger is there but especially if the box has a game and the branches with regard to the transverse stability are dimensioned too small. Another disadvantage of the known industries is that this are too short in relation to the length of the mouth, so that. the clamping in the mouth is not sufficient.

The task is to design a parametrium clamp of the type mentioned at the beginning so that a secure The hold of the parametrium is guaranteed, even if a strong pull is exerted on the parametrium and that further the training is made so that a vascular injury is avoided by the clamp.

This problem is solved with the features of the claim ches 1. Advantageous embodiments can be found in the subclaims.

The new parametrium clamp ensures that the box, where the highest stresses occur, is designed to be interference-proof, el ·, h, in his Area no breaks occur. The box ^ .i guarantees a proper guidance of the mouth and the branches, which in turn ensures that through the selected branch cross-section ensures a secure hold of the interlocking locking parts is. This is due to the selected type of retaining grooves

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Parametrium is securely grasped and held and it is also ensured that atraumatic clamping takes place, d. H. Vascular injuries due to the clamping do not occur even when the parametrium is pulled. These atraumatic mode of action is ensured, even if one takes into account that the pressure in the mouth at the according to the innovation clamp is much larger than the known hysterectomy clamps available on the market.

An exemplary embodiment is described below with reference to FIG Drawings explained in more detail. Show it:

Fig. 1 is a plan view of the clamp;

Figure 2 is a side view of the clamp;

Fig .__ 3 plan view and section of the mouth and

Fig. Ψ different mouth shapes.

The jaw parts 2 ′, 2 ^{11 of} the mouth 2 are connected to one another in an articulated manner via the box 1. The jaw part 2 'passes after the box 1 in a branch 3', which has an inwardly extending locking part ^ 'at its end in front of the ring 5'. In a corresponding manner, the jaw part 2 ″ passes over after the box 1 into a branch 3 ′ ¹ , which has a locking part 4 ′ ^{1 in front of the ring 5 ′ 1} , which is arranged in a mirror image of the locking part V. The articulated connection in box 1 is made via a rivet bolt 6. This rivet

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bolt 6 connects the two outer box parts 7, 8, between which the intermediate part 9 is arranged. The intermediate part 9 is here the jaw part 2 ^I! and the two outer box parts 7, 8 are assigned to the other jaw part 2 ¹ . The total thickness 2 t of the two outer box parts 7, 8 is at least equal to the thickness t_ of the intermediate part 9. The ratio of the total thickness 2 χ t of the two outer box parts 7, 8 to the thickness t _? of the intermediate part 9 about 4-, 5: 3.

The length H of the box 1 is at least equal to the width h of the box 1. The width h of this box 1 in turn is at least four times the thickness t_ of the intermediate part 9 :1. The diameter d of the rivet bolt 6 corresponds to about a quarter of the box width h.

For example, is the thickness t _? of the intermediate part 9 about 3 mm, the other dimensions of the box 1 result from this.

A box 1 with the above dimensional ratios perfectly withstands and secures all loads that occur also a perfect torsion-stable guidance of the two parts of the clamp.

The branches 3 ', 3 ¹ ' have a rectangular cross-section, the ratio of width to thickness of which is approximately 7: 5. This ratio leads to a good transverse stability in relation to the barrier parts V, 4 · '·

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and gives the branches 3 ', 3 ¹¹ in connection with the selected length ratios such elasticity that a secure compression is achieved in the mouth. The ratio between the length of the mouth 2, measured from the tip to the rivet bolt 6, to the length of the branches 3 ', 3 ¹¹ , measured from the rivet bolt 6 to the locking parts 4', 4- '' is approximately 1: 2 .

In order to exclude the effect of notch forces at the base of the mouth, there is an approximately 10 mm long at the end of the mouth Mouth cutout 10 provided.

The two lock parts Ψ ', 4 ·''each have six locks in the form of helical teeth. In verraste- "ter first barrier, as shown in FIG» l the holding grooves of the jaw members 2, 2 '' ¹ interlock.

The opening angle between the two branches 3 ', 3 ¹¹ is about 8 when the first lock is engaged. In the area of about 30 mm in front of the barrier parts 4-', 4 · '■ the branches 3 ¹ , 3' ^{1 have} so-called exhibitions. This shape ensures that the space required by the clamps is relatively small.

As FIG. 3 shows, the retaining grooves consist of longitudinally extending, intermeshing teeth which are finely toothed in the transverse direction. Here, the jaw part 2 ^{11 is provided} with two teeth 12 and the other jaw part with three teeth 12. Their division is about 1.7 mm. Oeder ZaHn 12 has a transverse

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serration provided, the pitch of which is about 0.7 mm. This mouth cross-section is in its mode of action atraumatic.

The parametric clamp can have different jaw shapes

W. According to FIG. 4a, the mouth 2 runs straight.

% This mouth shape is primarily used in abdominal

If hysterectomy is used. The usual shape of the mouth shows

■ t the Fig. 4-b, in which over a length of about 45 mm

Il the mouth 2 is bent uniformly about 20 mm.

; | In the embodiment according to FIG. 4c, the mouth is 2

1 angled by about 70 to a length of about 40 mm.

J In the last embodiment according to 4d, the mouth is

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j 2 angled by about 80 over a length of about 30 mm

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Claims (14)

Expectations 1. Parametrium clamp with a retaining groove Maul, the jaw parts of which are connected to one another via a box and those from there in two Pass branches that carry two interlocked locking parts at the respective end, thereby characterized in that the total thickness of the two outer box parts is at least equal the thickness of the inner box part, the length of the box at least equal to the width of the box which in turn is at least four times the thickness of the inner box part that the retaining grooves run lengthways and transversely in the mouth and that the branch cross-section over its entire length approximately is rectangular. 2. Clamp according to claim 1, characterized in that g e k e η η - draws that the total thickness of the two outer box parts is about 4.5: 3 in relation to the thickness of the intermediate part. 3. Clamp according to claim 1, characterized in that the length of the box increases to the width of the box as about 2: 1. 78G8070 08/17/78 1 3 1 I. 7539/01 / Ch / Fr - 2 - March 7, 1978 4. Clamp according to one of claims 1 to 3, characterized characterized in that the diameter of the bolt connecting the box parts is approximately one Quarter of the width of the box. 5. A clamp according to claim 1, characterized in that the width to the thickness of the branch cross-section is approximately in the ratio of 7: ö . 6. Clamp according to one of claims 1 to 5, characterized in that the ratio between the length of the mouth and the length of the branch, measured up to the locking parts, based on the pivot point, is approximately 1: 2 ^K ~ tiagt. 7. Clamp according to one of claims 1 to 6, characterized in that the holding grooves consists of longitudinal, interlocking teeth that are finely toothed in the transverse direction, 8. A clamp according to claim 7, characterized in that one jaw part has two teeth and the other jaw part have three teeth, each with a pitch of about 1.7 mm, and the transverse teeth has a pitch of about 0.7 mm. 9. A clamp according to claim 1, characterized in that an approximately 10 mm at the mouth end long mouth cut is provided. 7808070 08/17/78 7539/01 / Ch / Fr - 3 - March 7, 1978 10. A clamp according to claim 1, characterized in that the locking parts each have 6 locks in the form of helical teeth and when the first lock is locked, the retaining grooves of the jaw parts interlock. 11. Terminal according to one of claims 1 to 10, characterized in that the branches exhibit exhibits approximately in the range of 30 mm from the barrier parts. 12. Clamp according to one of claims 1 to 11, characterized in that the mouth voxrne uniformly by about 20 mm over a length of about * f5 mm is bent. 13. Clamp according to one of claims 1 to 11, characterized in that the mouth is at the front is angled by about 80 ° to a length of max. 30 mm. 14. Terminal according to one of claims 1 to 11, characterized marked that the mouth at the front on an I.
is kelt. over a length of approx. 40 mm by approx. 70 7808070 08/17/78