DE8610324U1 - Handle / cannula combination, especially for bone and bone marrow puncture and biopsy - Google Patents

Description

DESCRIPTION

FacfigroBhuidel for

medical technology products

Szillaweg 12

7100 Hellbronn

". ψ 07131-570041

Telex 728187 Rome D.

Handle / cannula combination, especially for Bone and bone marrow puncture and biopsy

The invention relates to a handle / cannula combination, in particular for bone and bone marrow puncture and biopsy.

For histological and cytological examinations, among other things bone or marrow tissue through sternal puncture and iliac crest biopsy won. These punctures or biopsies are associated with a considerable effort for the surgeon.

The cannulas (sample collection needles) used so far for this purpose are usually provided with complex approaches which are firmly connected to the cannula tube. Experience has shown that the tips of the cannulas are blunted or otherwise damaged after just a few punctures, these expensive cannulas often become unusable after a short time. On the other hand, conventional biopsy cannulas are often unwieldy with small ones Approaches equipped that do not ensure safe handling of the biopsy * · cannulas and a precise rapid removal of samples strong make more difficult.

Rometsch GmbH
P.O. Box 1163
Pfarrgartenstrasse, 55
Twists

Telephone (07024) 7424

Telex 7 267 447 Rome-d Postgiro Stuttgart (BLZ 600 100 70) 134 102 - 707

Commercial register ^ Ühlngen HRB f59ä '' Krfeissparkasse Nürtingen (BLZ 612 500 30) 48 900 Ü Managing Director; Helmut Rbmfetsiri! , ' Vorbank Wendungen (BLZ 612901 20) 4166

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The object of the invention is, in particular for the bone and bone marrow puncture and biopsy an anatomically shaped handle to create that is comfortable even with different sizes of hands held and with the help of this the biopsy cannula precise and safe can be performed. At the same time, a cannula attachment of a simple shape is to be created in combination with this handle the production of inexpensive Biupsiökäfiülr enable coaming.

Another requirement of the invention is that the handle / cannula combination should also be used for aspiration biopsy, which means that it can be used with a conventional Luer Lock aspiration syringe can be coupled.

This object is achieved according to the invention in that the handle has a rotatable, exchangeable bracket (1) and that the cannula attachment (4) provided with an external thread has the shape of a rounded one Has a flat profile so that it can be easily and safely attached to the finger grip (3) by means of a union nut (6).

According to a further feature of the invention, this handle / Cannula combination can also perform a bone marrow aspiration, by placing a Luer Lock suction syringe on the cannula without removing the finger grip (3).

Have the cannulas used with the handle according to the invention The advantage over conventional cannulas is that, thanks to the small uniform approach are very economical to use and rely on the problematic regrinding can be dispensed with.

The specific features of the invention emerge from the following description of the drawings:

In Figure 1 is a particularly advantageous overall design of the in ^ dgemä'ssen handle / cannula combination shown as it is for a Bone marrow biopsy can be used in a manner known per se.

Figure 2 shows the individual parts of the handle / cannula combination their assembly. It consists of the following parts:

a removable rotating bracket (1) which, thanks to its anatomical Shape lies comfortably in the hand even with greater physical exertion,

a screw head (2) connected to the rotatable bracket (1), with which the stylet is held in the cannula,

a finger grip (3) with a specially shaped inner cavity for receiving the cannula attachment, which has a rounded flat profile (4),

a cannula hub (4), which is in the form of a rounded flat profile is designed and on which a Luer or Luer Lock suction syringe can be placed in a known manner; this According to the invention, the cannula attachment has an external thread, which enables it to be attached to the finger grip (3) by means of the union nut (6 or 7). enables

a union nut (6) with which the cannula is screwed into the handle will; alternatively, a union nut is also available a sleeve (7) having an external thread on which a rider (8) can be screwed on to set the desired penetration depth of the cannula.

Claims (2)

1. Handle / cannula combination, especially for bone and Bone marrow ptinction and biopsy, characterized in that it has a rotatable interchangeable bracket (1) and the inner The cavity of the finger grip (3) is shaped in such a way that it encircles the cannula attachment (4), which has a rounded flat profile, this cannula attachment is provided with an external thread for attachment to the finger grip by means of a union nut and so without Removal of the finger grip with a syringe can be coupled in a known manner, e.g. for aspiration biopsy. 2. Handle / cannula combination according to claim 1, characterized in that that the union nut is provided with an external thread having a sleeve (7) on which a tab (8) for Adjusting the desired penetration depth the cannula is screwed on. Romotsch GmbH Telephone (0 70 24) 74 24 P.O. Box 1163 Telex 7 267 447 Rome d Postgiro Stuttgart (BLZ 600 100 70) 134 102 - 707 Pfarrgarten! * 55 HandelsreglsteV'MOrWigeniHRBMögz:, ·· J <celasparkasse Nürtingen (BLZ 61250030) 48900155 Wendllngen managing director; .Hfeirkit Rtorrfetsfch ',, Vqlfcstfjank Wendungen (BLZ 612901 20) 4166000