RU70110U1 - DISPLAY RING RETRACTOR - Google Patents

Abstract

ESSAY

The invention relates to medicine, in particular to surgery, and can be used as a detachable ring retractor during various abdominal and thoracic surgical interventions. A detachable annular retractor contains a kinematic pair of attachments to the operating table and a detachable hexagonal ring with retraction blades. The hexagonal ring is made of two half rings connected by quick couplers. A detachable ring retractor is installed by means of a kinematic pair consisting of a strut and a clamp. At the end of the rack made of a rod of circular cross section and bent at an angle, detachable cheeks, a detachable hexagonal ring are installed. The stand in the clamp has the ability to move in height, rotation and is fixed to the bracket of the operating table by means of a screw. Retraction blades are fixed on the ring by a fastening assembly consisting of an angular bracket, on the faces of which clamping clamps are constructed, which are actuated by nuts (a nut for moving the blade perpendicular to the face of the detachable annular retractor and a nut for moving it in the required position, a nut for moving the blade longitudinally along the face of the detachable ring retractor and provides rotation around the face). To increase the friction force, washers are installed in the mount.

Description

MPK A61V17 / 02

CONNECTIVE RING RETRACTOR

The invention relates to medicine, in particular to surgery, and can be used as an additional device during various abdominal and thoracic surgical interventions.

Known retractors - devices designed to expand tissue dissection and retention of the edges of the wound during the surgical operation, for example, rack retractors - manufactured by Tumbotinsky MIZ. Ring retractors are also known, for example, a Gauthier retractor (US patent N 4010741 from 08.03.77, nat. CL 128/20), ring retractor (USA N 4254763 from 10.03.81, nat. CL 128/20), ring retractor ( RF N 2008822 class A 61B17 / 02, publ. 15.03.95). The most advanced is an annular retractor (RF patent No. 2177266 class. A61B17 / 02, publ. 12/27/2001), which is mounted above the patient and contains a stand mounted on the operating table, a ring with retraction blades and a console, one end of which is designed to be mounted under the straight angle to the rack, and the other to hold the ring with retraction blades at a given height relative to the operating table, and the end of the console, intended for mounting to the rack, is held on it with a clamp with two mutually perpendicular nests, interacting with one common clamping screw, characterized in that the console is made of two links connected by a kinematic pair, while the kinematic pair contains a ball head that ends with one of the console links, a bowl with a reciprocal concave hemisphere, which ends with the second console link , a clamping cap in geometrical connection with the working surface of the spherical head, and an eccentric clamp of the clamping cap for geometrical closure of the ball head and cup, while tsentrikovy lock clamping the lid is hinged to the cup by means of lugs provided on it.

The disadvantages of this ring retractor model are: 1) the presence of a large number of nodes, which makes the model cumbersome and difficult to operate, process and sterilize; 2) the presence of a single ring with retraction blades, which makes it impossible to raise the opposite edges of the wound in relation to each other, however, this manipulation is often necessary when carrying out abdominal operations in hard to reach places; 3) retraction blades have the ability to move only in two directions relative to the axis of the ring, that is, the number of degrees of freedom is sharply limited;

4) the presence of a single rack does not provide the necessary structural strength, and its connection at right angles to the console is inconvenient for the surgeon.

The technical result (goal) of the development is the creation of a detachable ring retractor that provides surgical operations in any hard-to-reach places of the patient’s body, as well as increasing the convenience of the surgeon’s manipulations by achieving the possibility of installing a detachable ring with retraction blades of various modifications at any desired angle relative to the wound plane and operating table, while maintaining the necessary stability of the structure.

The technical result is achieved by the fact that a kinematic pair (Fig. 4) of attachment to the operating table and a detachable ring (Fig. 1-5, Fig. 2), made in the form of a polyhedron, with retraction blades fixed to it, are added to the design of the split annular retractor ( Fig. 1-8). The polyhedron is made of two half rings (Fig. 2-9) connected by quick couplers (Fig. 2-6). A split annular retractor is mounted by means of a kinematic pair consisting of a strut (Fig. 4-2) and a clamp (Fig. 1-4). At the end of the rack made of a metal rod of circular cross section and bent at an angle (Figs. 1-4, 4-4), detachable cheeks (Figs. 4-18, 4-19), a detachable hexagonal ring (Figs. 1-5) are installed. The rack (Fig. 1-4; 4-4) in the clamp (Fig. 1-2; 4-2) has the ability to move in height, rotation and is fixed to the bracket (Fig. 4-17) of the operating table (Fig. 1- 1; 4-1) by means of a screw (Fig. 1-3). Retraction blades (Figs. 1–8; 3–8) are fixed on the polyhedron by a fastening unit (Figs. 1–7), consisting of an angular bracket (Figs. 3–15), on the faces of which clamp clamps are installed (Figs. 3-12) ) driven by nuts: a nut for moving the blade perpendicular to the edge of the detachable annular retractor and for installing it in the required position (Fig. 3-16); a nut for moving the blade longitudinally to the face of a detachable annular retractor and to ensure rotation around the face (Fig. 3-14). This design ensures the retraction blades can be moved in any planes either separately or together with detachable half rings of the polyhedron.

The invention is illustrated by drawings, where in Fig.1 shows a General view of a detachable annular retractor made in the form of a hexagon. In Fig.2, a hexagonal ring made of two half rings connected by quick couplers. In Fig.3, the attachment point of the retraction blades to a detachable hexagonal ring. Figure 4 kinematic pair of mounts

ring retractor to the operating table. An annular retractor is installed above the operative field in height by means of a kinematic pair of Figure 4, consisting of a rack 4 and a clamp 2. At the end of the rack, made of a rod of circular cross section and bent at an angle, the upper and lower parts of the split cheek 19 and 18, the split hexagon 5 are installed. The rack 4 in the clamp 2 has the ability to move in height, rotation and is fixed to the bracket 17 of the operating table 1 by means of a screw 3 (Figure 1). Angled stance 4 is not a hindrance to the operating surgeon during surgery. The design of the clamp 2 is such that it can be installed on the operating tables 1 (Figure 1) of various models. Figure 2 shows a hexagonal ring made of two half rings 9 connected by quick-release couplings 6, which allows, if necessary, to disconnect the ring and raise the edges of the wound relative to each other due to two half rings. The detachable ring retractor includes a set of various half rings 9, which are selected depending on the nature of the surgical intervention. The half rings 9 can be combined and quickly replaced during surgery, without the need for a complete retractor disassembly and while maintaining one fixed half ring. Retraction blades 8, having a blade 10 with a movable connection 11, are mounted on the ring by the attachment point of FIG. 3. Figure 3 shows the attachment site of the retraction blade consisting of an angular bracket 15, clamping clamps 12 are structurally installed on its faces, the clamps are driven by nuts 14,16. To increase the friction force, washers 13 are installed in the attachment unit. Nut 16 to move the blade perpendicular to the edge of the detachable annular retractor and to install it in the required position. Nut 14 for moving the blade longitudinally to the face of a detachable annular retractor and provides rotation around the face.

The proposed device detachable annular retractor facilitates the execution of surgical operations in any hard-to-reach areas of the patient’s body by creating the possibility of installing a detachable ring and attachment unit with retraction blades at any angle necessary for performing surgical procedures with respect to the plane of the wound and the operating table.

Explanations for the drawings.

Figure 1 - General view of a detachable annular retractor.

FIG. 1-1 - operating table

FIG. 1-2 - clamp

FIG. 1-3 - screw

FIG. 1-4 - rack

FIG. 1-5 - hex ring

FIG. 1-6 - quick coupler

FIG. 1-7 - the mount of the retraction blade

FIG. 1-8 - retraction blade

FIG. 1-17 - bracket for the operating table.

Figure. 2 - hex ring

FIG. 2-6 - quick coupler

FIG. 2-9 - a half ring.

Figure. 3 - mount retraction blade

FIG. 3-8 - retraction blade

FIG. 3-10 - the blade of the retraction blade

FIG. 3-11 - movable connection

FIG. 3-12 - clamping clamp

FIG. 3-13 - washer

FIG. 3-14 - nut for longitudinal and circular movement

FIG. 3-15 - corner bracket

FIG. 3-16 - nut for perpendicular movement.

Figure 4 - kinematic pair of fastening of the annular retractor to the operating table

FIG. 4-1 - operating table

FIG. 4-2 - clamp

FIG. 4-4 - rack

FIG. 4-17 - operating table bracket

FIG. 4-18 - lower part of the split cheek

FIG. 4-19 - upper part of the split cheek

Claims (6)

1. A detachable annular retractor, characterized in that it contains a detachable ring in the form of a polyhedron with retraction blades mounted on it and a kinematic pair of attachments to the operating table. 2. The split annular retractor according to claim 1, characterized in that the split ring in the form of a polyhedron consists of two half rings that are interconnected by quick couplers. 3. The detachable annular retractor according to claim 1, characterized in that the detachable ring is attached to the operating table using a stand, bent at an angle, and a clamp. 4. The detachable annular retractor according to claim 1, characterized in that the retraction blades are fixed to the ring by a fastening assembly consisting of an angular bracket, on the faces of which are mounted clamps driven by nuts. 5. The detachable annular retractor according to claim 3, characterized in that at least two nuts are used: moving the blades perpendicular to the face of the detachable annular retractor and setting it in the required position, moving the blades longitudinally along the face of the detachable annular retractor and allowing rotation around the face. 6. The detachable annular retractor according to claim 1, characterized in that washers are mounted in the attachment point to increase the friction force.