SU1225550A1 - Surgical forceps - Google Patents

Description

The invention relates to medical technology and is intended for use in surgical practice for dispensing with sufficient accuracy when performing an injury to the organs of an experimental animal.

The purpose of the invention is an indication of the force of action.

FIG. 1 shows a clip, common

Plate 9 and screw 10 keep the pad from falling out of the guide grooves during the operation. The conductors 11 are designed to transmit an electrical signal from a strain gauge sensor to a recording device, which is a bridge resistance measurement circuit for the purpose of balancing a bridge (Fig. 4).

The recording device consists of

view; in fig. 2 — node I in FIG. 1 (vo-the source of the power supply 12 of the key 13, the strain gauge is a receiving device located on the serial sensor 14, resistors 15-17,

under one of the branches of the surgical clamp); in fig. 3 shows section A-A in FIG. 2;

in fig. 4 is an electrical diagram of the register-forming bridge, the resistors 18 and 19, forming a bridge equilibrium circuit, designed to establish a nuler device. 15 values of the electrodes of the galvanometer 20,

The surgical clamp contains a bran-corresponding zero force on

surgical clamp.

shea 1 with removable working platform-. 2, mounted on the thread that provides them with rotation around its own axis and fixation in different positions by means of locknuts 3.

On one of the surgical clamp branches, the working platform rests on the receiving device 4. The receiving device consists of a housing 5 (Fig. 2,

The device works as follows.

When compressing the surgical clamp, the action of the force through the platforms 2 is transmitted to the elastic element 6, which causes its deformation and the corresponding change in resistance of the strain gauge 7, the value of which is 3), the elastic plate 6 with loose 25 conductor means 11 is transferred to

the ends and the wire strain gauge sensor 7 resistance. The sensor is sealed against external influences by epoxy compound 8 on the inner side of the elastic plate.

recording device. The electrical signal of the change in resistance of the strain gauge sensor 7 is recorded by a galvanometer 20 (Fig. 4) included in the diagonal of the bridge.

Plate 9 and screw 10 keep the pad from falling out of the guide grooves during the operation. The conductors 11 are designed to transmit an electrical signal from a strain gauge sensor to a recording device, which is a bridge resistance measurement circuit for the purpose of balancing a bridge (Fig. 4).

The recording device consists of

the power source 12 of the key 13, the strain gauge sensor 14, the resistors 15-17,

the power source 12 of the key 13, the strain gauge sensor 14, the resistors 15-17,

forming a bridge, resistors 18 and 19, forming a bridge equilibrium circuit, designed to establish a zero. The device operates as follows.

When compressing the surgical clamp, the force acting through the pads 2 is transmitted to the elastic element 6, which causes its deformation and a corresponding change in the resistance of the strain gauge 7, the value of which is transmitted to

 by means of conductors 11 is transmitted to

recording device. The electrical signal of the change in resistance of the strain gauge sensor 7 is recorded by a galvanometer 20 (Fig. 4) included in the diagonal of the bridge.

 x jn

L.

 h x x

5

Fig.Ch

Compiled by Y. Kochetkov

Editor S. PatrushevTehred I. VeresKorrektor V. Sinitska

Order 1919/3 Circulation 660 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk iab., 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

SURGICAL CLAMP, containing jaws with working platforms, characterized in that, in order to indicate the impact force, the working platforms are removable, rotatable about its axis, and one of them is equipped with a sensing device consisting of a housing and an elastic plate freely installed in it with a strain gauge located on its inner surface and included in one of the arms of the measuring bridge, while the working platform has the possibility of axial movement relative to the housing wringing device.