CN104146791B - A kind of rabbit, murine retractor - Google Patents

Abstract

The invention belongs to the field of animal testing instruments, in particular to a retractor for rabbits and rats. The retractor includes an operating table (10), the bottom of the operating table (10) is provided with a column foot (12), and the two ends of the operating table (10) are respectively provided with a guide groove at the position on the same horizontal line (11), the guide groove (11) is slidingly connected with the bracket (20), and a retracting hook (21) is provided above the bracket (20). The present invention adopts mechanical transmission instead of manually fixing the animal's thorax and abdominal cavity to retract, which saves manpower, has good stability, and has a large surgical field of view, less bleeding of animals, and reduces the mortality of animals in the operation.

Description

A retractor for rabbits and mice

technical field

The invention belongs to the field of test instruments, in particular to a retractor for rabbits and rats.

Background technique

In the prior art, when performing chest and abdomen tests on rabbits and rodents, staff members are required to manually cut open the chest and abdomen of the animals and use artificial retractors to expose the surgical field of view, and the limbs of the animals need to be fixed on the operating table. This thoracotomy method is difficult to operate, has poor fixation stability, and has a small surgical field of view and a large amount of bleeding in animals, which affects the efficient conduct of subsequent experiments. The operating table in the prior art is made of stainless steel, the cost is high and the later maintenance work is complicated.

Contents of the invention

The purpose of the present invention is to provide a retractor for rabbits and rats.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

A retractor for rabbits and rodents, the retractor includes an operating table, the bottom of the operating table is provided with column feet, and the two ends of the operating table are respectively provided with a guide groove at the same horizontal position, The guide groove is slidably connected with the bracket, and a retracting hook is arranged above the bracket.

Preferably, the bottom of the bracket is provided with a transmission device.

Preferably, the transmission device includes a sleeve provided with an internal thread, the sleeve is fixedly connected to the bottom of the bracket, the screw rod passes through the two sleeves, and the screw rod is threadedly connected to the sleeve.

Preferably, the brackets at both ends of the screw rod are fixed on the bearing seat under the operating table.

Preferably, the end of the screw passes through the bearing seat and is in interference fit with the inner diameter of the swivel, and the swivel is vertically connected to the handle.

Preferably, the chest opening hook is L-shaped as a whole, and positioning holes for matching with screws or bolts are provided on the chest opening hook, and the retracting hook is connected to the top of the bracket through screws or bolts.

Preferably, the operating table and chest opening hooks are made of plexiglass.

When working, select a retractor hook of corresponding volume according to the size of the test animal. Put the animal on its back and place it along the center line of the operating table, fix its limbs on the operating table, cut the animal's chest according to the test requirements, and put the two retractor hooks into the animal's chest and abdominal cavity. The retracting hooks are respectively connected to the top of the bracket through screws or bolts. Then, shake one of the handles, the handle drives the swivel to rotate, indirectly drives the screw to rotate in the circumferential direction, the sleeve threaded with the screw moves relative to the screw, and drives the bracket, indirectly drives the two thoracotomy and abdomen hooks to move away to a suitable position position, the retractor hook stably opens the animal's chest and abdominal cavity; after the test is completed, shake the handle in reverse to make the retractor hook move toward each other, then take out the hook part of the retractor hook from the animal's chest and abdominal cavity, and make it Pull the hook apart from the bracket, and suture the animal's chest and abdomen incisions.

Compared with the prior art, the present invention has the following advantages: it adopts mechanical transmission instead of manually fixing the animal's chest and abdominal cavity to retract, which saves manpower, has good stability, and has a large surgical field of view, less bleeding of animals, and reduces the risk of animal bleeding during surgery. death rate.

Description of drawings

Fig. 1 is the schematic diagram of the mechanism of the rabbit and rodent animal retractor in the specific embodiment;

FIG. 2 is a top view of FIG. 1 .

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1-2, a retractor for rabbits and rats, the retractor includes an operating table 10, the bottom of the operating table 10 is provided with columns 12, and the two ends of the operating table 10 are located at The position of the same horizontal line is respectively provided with a guide groove 11, the guide groove 11 is slidably connected with the support 20, the top of the support 20 is connected with the retracting hook 21 by the screw 22, the retracting hook 21 is L-shaped as a whole, and the retracting hook 21 is provided with There are positioning holes 23, the positioning holes 23 cooperate with the screws 22, the bottom of the bracket 20 is fixedly connected with the sleeve 30, the sleeve 30 is provided with internal threads, a screw rod 31 passes through two sleeves 30 and is threadedly connected with the sleeve 30, The screw rod 31 is erected on the bearing seat 32 fixed under the operating table 10, the two ends of the screw rod 31 pass through the bearing seat 32 and are fixedly connected with the swivel ring 33, and the swivel ring 33 is vertically connected with the handle 34. The operating table Plate 10 and retractor hook 21 are made of plexiglass material.

During work, the retractor hook 21 of corresponding volume is selected according to the size of the test animal. Put the animal on its back and place it along the center line of the operating table 10, fix its limbs on the operating table, cut the chest and abdomen of the animal according to the needs of the test, and put the hooks of the two retracting hooks 21 into the chest of the animal. , In the abdominal cavity, the retractor hooks 21 are connected to the top of the bracket 20 through screws 22 respectively. Then, shake one of the handles 34, the handle 34 drives the swivel 33 to rotate, indirectly drives the screw rod 31 to rotate in the circumferential direction, the sleeve 30 threaded with the screw rod 31 moves relative to the screw rod 31, and drives the bracket 20, indirectly drives two retractors. The hook 21 moves away to a suitable position, and the chest and abdominal cavity of the animal are stably opened by the retracting hook 21; Take it out from the chest and abdominal cavity of the animal, separate the retractor hook 21 from the bracket 20, and suture the incision in the chest and abdominal cavity of the animal.

Claims (3)

1. a rabbit, murine retractor, it is characterized in that, described retractor comprises operation platen (10), operation platen (10) bottom is provided with suspension column (12), the two ends of operation platen (10) are respectively provided with a gathering sill (11) in the position being positioned at same level line, gathering sill (11) and support (20) are slidably connected, support (20) top is provided with hook retractor (21), described support (20) bottom is provided with actuating device, described actuating device comprises establishes female sleeve (30), sleeve (30) is fixedly connected with support (20) bottom, screw rod (31) is through two sleeves (30), screw rod (31) is threaded with sleeve (30), two end supports of described screw rod (31) are located at and are installed in operation platen (10) below bearing block (32), the end of described screw rod (31) through bearing block (32) and with the internal diameter interference fit of change (33), change (33) is connected with handle (34) is vertical.

2. a kind of rabbit as claimed in claim 1, murine retractor, it is characterized in that, described hook retractor (21) entirety is in L-type, and hook retractor (21) is provided with the locating hole (23) coordinated with screw or bolt, and hook retractor (21) is connected with support (20) top by screw or bolt.

3. a kind of rabbit as described in as arbitrary in claim 1-2, murine retractor, it is characterized in that, described operation platen (10) and hook retractor (21) are made up of pmma material.