JPH0454954A - Ring type omnidirectional wound retractor - Google Patents

Abstract

PURPOSE:To enable the expanding of a cut by an operator as desired by mounting a plurality of traction element-fixing bases (2) on a ring-shaped frame body (1) free to slide to move traction elements in optional directions. CONSTITUTION:A plurality of traction element-fixing bases are mounted on a ring-shaped frame body 1 free to slide. The type and the number of traction elements 4 are determined according to purposes and fields of operation and the traction elements are fixed light on the traction element-fixing bases 2 with screws 6. Then the frame body 1 is placed at a position at which a cut is visible at the center of a ring and tips called blades of the respective traction elements 4 are put on an opening of a cut. After a desired direction of traction is determined, the traction element 4 is drawn little by little to expand the cut and when a desired shape is defined, the screw 6 is tightened to fix the traction element 4 firmly. The screws 6 are so arranged to reach the surface of the frame body 1 piercing a slide groove 5 of the traction element 4 and a screw hole of the traction element fixing base 2. Thus, by tightening the screw 6 strongly, the traction element 4 can be fixed on the frame body 1 firmly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ring-shaped omnidirectional retractor used by veterinarians to treat small animals. This device allows the surgeon/person to widen the incision in any direction during surgical operations on dogs and cats.

(Prior Art) When performing surgical operations on humans or animals, a retraction device called a tractor, which is equipped with a plate or claws perpendicular to the handle, is used to widen the incision made with a scalpel.

Normally, an assistant is required to hold several retractors by himself, but in order to compensate for the lack of manpower, a retractor is used that allows the surgeon to expand the incision site manually, as shown in Figure 2. has been devised. In other words, after opening the folded frame (11) in the shape of a mouth using Franz's retractor,
are fitted to form a rectangular frame, and a pair of movable retractors (13) and fixed retractors (14) are attached to each side. Also, the retractor of the mouth is
Four arcuate pieces (15) are movably connected to form a substantially rectangular frame, and a pair of movable retractors (13) are attached to each connecting part (16).
and a fixed retractor (14) are placed opposite each other.

(Problems to be Solved by the Invention) The above-mentioned conventional products are all foldable, so although they are convenient to store in a cupboard, it is extremely troublesome to assemble them before surgery.

Additionally, since there were four retractors, the patient could only be pulled in four directions: up, down, left, and right, making it impossible to widen the incision as desired. Furthermore, out of the two to four retractors, one pair remains fixed to the frame and does not move, making it extremely difficult to handle and inconvenient.

This invention eliminates the above-mentioned drawbacks of conventional retractors and provides a new ring that allows the retractor to move in any direction, allowing the surgeon to expand the incision as desired. The purpose is to provide a type omnidirectional retractor.

(Means for solving problems) The configuration of this invention will be explained based on FIG.

FIG. 1 is a perspective view showing a ring-type omnidirectional retractor according to the present invention. (1) is a ring-shaped frame,
A plurality of retractor fixing bases (2) are slidably attached to a frame (1).

The shape of the retractor fixing base (2) is not particularly limited;
An appropriately shaped fitting opening (
3). The number of fitting holes (3) is the same as that of the frame (1
) may be provided at one location, but may be provided at several locations.

The means for fixing the retractor (4) to the retractor fixing base (2) is as follows:
Screws (6) are preferred. The shape of the screw (6) may be arbitrary, and fixing means other than screwing may be arbitrarily employed.

(Function) To use this ring-type omnidirectional retractor, proceed as follows. First, determine the type and number of retractors (4) depending on the purpose of the surgery and the situation of the surgical field, and place them on the retractor fixation table (2).
Secure it lightly with the screw (6).

Next, the frame (1) is placed in a position where the incision can be seen in the center of the ring, and the tip of each retractor (4) called a blade is hooked onto the cut of the incision. Then, after determining the direction in which you want to pull the retractor (4), gradually widen the incision while pulling the retractor (4), and when the desired shape is achieved, screw (
6) to securely fix the retractor (4).

The screw (6) passes through the slide groove (5) of the retractor (4) and the screw hole of the retractor fixing base (2), and reaches the surface of the frame (1). Therefore, by strongly tightening the screw (6), the retractor (4) is firmly fixed to the frame (1). Furthermore, in order to insert the tips of the screws (6), a number of holes are provided in the frame (1) in a row, and if the screws (6) are tightened to this point, the retractor fixing base (2) will never move.

(Effect of the invention) When the ring-type omnidirectional retractor according to this invention is used,
A plurality of retractors (4) can be slid around the incision while sliding along the frame (1).

Therefore, the incision can be expanded in all directions, that is, from any position in any direction and to any size as desired by the surgeon.

Also, slightly loosen the screws that have been tightened, and then tighten the retractor (
By correcting the tension in step 4) or shifting the retractor fixing base (2) to the left or right, it is possible to freely adjust the degree of expansion of the incision after it has been expanded.

Moreover, by preparing retractors (4) of various blade lengths, bending angles, shapes, sizes, etc., and using them freely, it is possible to deal with all kinds of situations, such as the depth and width of the incision site. can. Therefore, the incision can be expanded steadily by the surgeon, and the time and manpower required for the surgical operation can be significantly reduced.

[Brief explanation of drawings]

Fig. 1 - Perspective view showing a ring-type omnidirectional retractor according to this invention Fig. 2 -111 Perspective view showing a conventional retractor (1) Frame body
(2) Retractor fixing base (3) Fitting hole (4) Retractor (5) Slide groove (6) Screw

Claims (1)

[Claims] 1. A ring-shaped omnidirectional retractor in which a plurality of retractor fixing bases (2) are slidably attached to a ring-shaped frame (1).