DE6812374U - CLAMP FOR MICRO VASCULAR SURGERY - Google Patents

Description

The invention relates to a medical clamp for microvascular surgery with two pliers-like movable clamping jaws which are provided with teeth on the inside and two handle parts between where a compression spring is attached, by means of which the handle parts are held apart or the clamping jaws are pressed together. Clamps of this type are known in general vascular surgery, however, there is a corresponding reduction in scale because of the small cross-sections of the individual parts that result not possible.

With udder well-known clamp for microvascular surgery, the both clamping jaws by one acting on the clamping jaws from the outside, circular spring guided around the rear ends of the grip parts of the clamp compressed. This version has the disadvantage that the ring spring takes up a large space in relation to the clamp. Another disadvantage is that the suture easily clings to the ring spring.

The invention is now intended to provide a clamp for microvascular surgery be created that once "e" $ s of extraordinarily small dimensions the vessels that are to be grasped and clamped in microvascular surgery is designed as small as possible, but on the other hand allows the vessel to be clamped, e.g. B. to close a blood vessel with security so that the vessel can slide out the clamping jaws are excluded, but on the other hand the tissue is not injured either, d. H. is not crushed or pierced. the outer shape should be designed so that the suture does not get caught on protruding parts.

According to the invention, the on? * solved by the fact that in a medical Clamp for MiIu vascular surgery with two forceps movable clamping jaws (1, 2) «those on the inside with a toothing (S) are provided, and two handle parts (4), on the inner sides of which a leaf spring (5) is attached to the rear end, the one of which is attached to the clamp joint (6) facing earths support each other. Because Due to the small cross-section of the handle parts, it has proven advantageous to manufacture the handle part (4) and leaf spring (5) from one part. For this purpose, the ends of the handle parts are thinned like a leaf spring and bent inward so that when the clamp is mounted, the support both ends against each other while providing enough spring force to close the jaws. This design and arrangement of the spring results in a closed, smooth shape of the handle parts achieved in which the suture material is no longer caught

^{megBehl # t} §812374

O ¹ Oi to prevent the clamping jaws (1, 2) under tension from being able to move to the sides because of the small cross-sections.

C · · I

was in the clamp according to the invention at the tip of the clamp jaw (2) a groove (7) on its inside and a matching elevation (8) attached to the tip of the clamping jaw (1), which is shown in Locked position aar clamp interlock.

With the small surgical field under the microscope, it is not possible to to apply these little clamps by hand. Another requirement is therefore that the clamp should be as small as possible Auxiliary device safely brought into the operating field, to the vessel can be put on and removed again. To make this possible A hole or recess (9) or pins or knobs are attached to the rear ends of the handle on the outside, into which the tips or loops of known application pliers engage be able.

The drawing shows a clamp for microvascular surgery, whose The clamping jaws are bent twice to the side. The invention also relates, mutatis mutandis, to clamps of this type with differently curved ones or straight jaws with any tooth shape.

Fig. 1 shows a clamp in a front view on a scale of 5: 1,

Fig. 2 shows the side view of a clamp with double to the side bent jaws on a scale of 5: 1,

Fig. 3 shows a view of part of the jaws with the one inside the other gripping teeth,

Fig. 4 shows a cross section through the toothed part of the jaws daring

Fig. 5 shows the cross section through the tips of the clamping jaws,

Fig. 6 shows a clamp with double angled to the side Natural size jaws.

Claims (5)

Protection claims 1. Two microvascular surgery medical clamp Wr * Smoothly movable jaws on the inside are provided with a perforation and two handle parts. a compression spring is attached between the rear ends thereof, thereby characterized in that the compression spring consists of two leaf springs «whose ends on one side on the inside of the handle parts are attached and on the side facing the clamp joint are supported against each other. 2. Medical clamp for microvascular surgery according to claim 1, characterized by the fact that the handle parts are like a leaf spring at their ends thinned and the thinned ends are bent inwards on the inside of the handle parts. S. Medical clamp for microvascular surgery according to claims 1 and 2, characterized in that on the front inner End of a jaw a groove and at the front inner end of the other clamping jaw «a raised portion engaging in the groove in the closed position of the clamping jaws is attached. 4. Medisisiseh- Klemm for dl «microvascular chimirgy according to the claims 1-3, characterized in that at "the rear ends the handle parts each have a hole or recess on the outside. 5. Medical clamp for microvascular surgery according to the claims 1-3, characterized in that a pin or knobs are attached to each of the rear ends dor Qriffteile on the outside is. 12374