CN203988476U - A kind of mice oral cavity microsurgery is fixed and pulling device - Google Patents

Abstract

The utility model discloses a microsurgical fixation and pulling device for mouse oral cavity, which comprises a base plate and a panel. One end separated by the transverse incision is fixedly connected. The panel is provided with two orthodontic ligature wires for pulling the upper and lower incisors of the mouse. The two orthodontic ligature wires are respectively located on both sides of the through hole. The panel is also provided with Two retractors that pull the two corners of the mouse apart. The utility model is convenient to use and flexible to adjust, and provides convenient material conditions for the operation process of oral medicine and surgery.

Description

A mouse oral microsurgical fixation and pulling device

technical field

The utility model relates to an operation auxiliary device for mouse oral medicine and surgical operations, in particular to a mouse oral microsurgical fixation and pulling device.

Background technique

Dentistry, like other sciences, is developing rapidly. New treatment methods, drugs, orthopedic materials, etc. are continuously discovered, some of which can be directly used clinically, and some must pass animal verification before they can be applied clinically. Therefore, the status of experimental animals in stomatology research is becoming more and more important. Experimental animals can be used for research on congenital malformations, defects, acquired trauma, inflammation and tumors of oral organs. Because mice are small in size, easy to control, fast in growth and reproduction, convenient in feeding and management, and have clear quality standards, they have been bred into a large number of inbred lines, closed groups and gene mutation lines, which have a large room for research and selection, and Sensitive to external stimuli, it is widely used in various fields of biomedical research. However, the size of the mouse is small and the soft tissue is fragile. If the mouse cannot be well fixed in different positions and the buccal soft tissue is effectively pulled to fully expose the field of view, it is difficult for the operator to perform efficient and accurate surgery on the mouse independently. intraoral operations. However, simply using dental forceps to retract the buccal mucosa is difficult to fully expose the surgical field of view, which brings certain difficulties to the follow-up operation.

In order to solve the above-mentioned technical problem of visual field exposure, some scholars used orthodontic ligature wire to bend into a rectangle, placed it on the lingual and palatal side of the upper and lower incisors of mice, and used dental forceps to retract the cheek to expose the surgical field of view. However, the above-mentioned device requires both hands of the operator to operate at the same time, or an assistant to use dental forceps in cooperation, and the operator needs to have rich experience and good stability. Also, mice cannot adjust body position.

Contents of the invention

In order to overcome the deficiencies in the prior art above, the utility model provides a mouse oral microsurgical fixation and pulling device that is easy to use and flexible to adjust.

The purpose of the utility model is achieved through the following technical solutions: the mouse oral microsurgical fixation and pulling device includes a base plate and a panel, the base plate is provided with a transverse incision, and the panel is provided with a through hole for exposing the mouse face , the bottom plate is fixedly connected with one end of the panel separated by a transverse incision, and the panel is provided with two orthodontic ligature wires for pulling the upper and lower incisors of the mouse, and the two orthodontic ligature wires are respectively located on both sides of the through hole , the panel is also equipped with two pull hooks to pull the two mouth corners of the mouse apart.

The cross-section of the transverse cut is oblique.

The transverse cuts integrate the surface of the base plate 1:3.

A screw is provided directly above and directly below the through hole, two orthodontic ligature wires are respectively bound to the two screws, and the starting ends of the two draw hooks are connected to one of the screws.

The drag hook is L-shaped, and the end of the drag hook is U-shaped bent downward.

The utility model has the following advantages relative to the prior art:

1. The size of the retractors on the left and right sides is small, and the width of the retractors is suitable for the size of the cheek of the mouse, and it is not easy to damage the soft tissue. The retractor is made of metal material, and its traction direction, force and height can be adjusted, and can be adjusted to an appropriate position arbitrarily, with strong flexibility, so that the operator is in an active state.

2. The bottom plate can be adjusted at different angles to meet the body position requirements of the upper and lower teeth;

3. The upper and lower jaws of the mouse and the corners of the mouth on both sides are fixed on the device, which has good stability during the operation, and only one assistant can complete the entire operation process under the microscope, and the operation process is significantly accelerated.

Description of drawings

Fig. 1 is the front view of the mouse oral microsurgical fixation and pulling device of the present utility model.

FIG. 2 is a longitudinal sectional view of FIG. 1 .

FIG. 3 is a schematic diagram of the rearward bending of the bottom plate in FIG. 2 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

The microsurgical fixation and pulling device for mouse oral cavity as shown in Figure 1 comprises a base plate 1 and a panel 2, the base plate 1 has a transverse incision 5, and the panel 2 has a through hole 7 for exposing the head and face of the mouse, the base plate 1 is fixedly connected to one end of the panel 2 separated by the transverse incision 5, and the panel 2 is provided with two orthodontic ligature wires 3 for pulling the upper and lower incisors of the mouse, and the two orthodontic ligature wires 3 are respectively located in the On both sides of the hole 7, the panel 2 is also provided with two draw hooks 4 for pulling the two mouth corners of the mouse apart.

The cross-section of the transverse cutout 5 is oblique. The transverse cutout 5 integrates the surface of the base plate 1 into 1:3. A screw 6 is provided directly above and directly below the through hole 7, and two orthodontic ligature wires 3 are respectively bound on the two screws 6, and the starting ends of the two pull hooks 4 are connected to the upper screws. The drag hook 4 is L-shaped, and the end of the drag hook 4 is U-shaped bent downward.

The manufacturing process of the fixing and pulling device is as follows:

1. Production of retractors: Take 1 stainless steel wire for teeth with a length of 30 cm, fold it in half from the middle, and bend the two ends into the shape shown in Figure 1 to form two retractors for pulling the corners of the mouse's mouth.

2. Production of the bottom plate and panel: As shown in Figure 1, two polymer plastic plates of different sizes are used to make them. Use a blade to cut off the larger plastic plate at 1/4 (the section is a slope), and the reverse side Stick it firmly with tape to form a mouse fixing plate that can be adjusted at different angles; make a circular vacancy with a diameter of 5 cm on the small plastic plate to expose the entire head of the mouse. Then connect the large and small plastic plates with two screws.

3. Assembling hooks: As shown in Figure 1, implant a long screw in the middle of the upper part of the small plastic plate, and connect the prepared draw hooks to the screw; implant a piece under the small plastic plate A small screw that provides a fulcrum for pulling the mouse jaw.

The use process of the fixing and pulling device is as follows:

As shown in Figure 3, the bottom plate was bent back along the transverse incision. After the mouse was routinely anesthetized, it was placed on the bottom plate, the limbs were fixed with medical adhesive tape, and the head of the mouse was placed under the center of the circular vacancy of the small plastic plate. The upper and lower incisors of the mouse were fixed on the corresponding screws with orthodontic ligature wires respectively, and then the corners of the mouth on both sides were pulled with the bent retractor, so that the entire oral cavity could be fully exposed before the operation. According to the operation needs of different parts (upper and lower jaw), adjusting the angle of the joint of the large plastic plate can change the angle between the upper and lower jaw plane of the mouse and the ground, so as to facilitate the operator to operate. The device provides convenient material conditions for oral medicine and surgical operations.

Claims (5)

1. A microsurgical fixation and pulling device for mouse oral cavity, characterized in that: comprise a base plate and a panel, the base plate has a transverse slit, and the panel has a through hole for exposing the head and face of the mouse, the base plate and the panel One end separated by the transverse incision is fixedly connected. The panel is provided with two orthodontic ligature wires for pulling the upper and lower incisors of the mouse. The two orthodontic ligature wires are respectively located on both sides of the through hole. The panel is also provided with There are two retractors that pull the two corners of the mouse apart. 2 . The mouse oral microsurgical fixation and stretching device according to claim 1 , wherein the cross section of the transverse incision is inclined. 3 . 3 . The microsurgical fixation and stretching device for mouse oral cavity according to claim 1 , characterized in that: said transverse incision integrates the surface of the bottom plate into a ratio of 1:3. 4 . 4. A microsurgical fixation and pulling device for mouse oral cavity according to claim 1, characterized in that: a screw is respectively provided directly above and directly below the through hole, and two orthodontic ligature wires respectively Bundled on two screws, the start of the two hooks is attached to one of the screws. 5 . The mouse oral microsurgical fixation and pulling device according to claim 1 , wherein the retractor is L-shaped, and the end of the retractor is U-shaped bent downward. 6 .