CN102525393A - Fixed-type self-lighting vaginal speculum for rats - Google Patents

Abstract

Fixed self-illuminating vaginal speculum for rats, including: the upper hinge includes the upper main piece and the upper expansion piece. Extension; the lower hinge includes the lower main piece and the lower expansion piece. The upper connecting piece is downward, and the lower hinge is provided with an upward lower connecting piece on both sides of the depression, and the upper connecting piece is hinged with the pin shaft of the lower connecting piece; the arch of the upper hinge is opposite to the depression of the lower hinge. One cavity; the rear end of the upper hinge is provided with a downward positioning piece, and the positioning piece is provided with positioning teeth that are snapped to the rear edge of the lower hinge; a lighting lamp is fixed under the front end of the upper expansion piece, connected in series with a battery and a power switch to form a lighting circuit ; Both sides of the lower hinge are respectively connected with a binding rope. It dilates the rat vagina to observe and operate the vagina, cervix and uterine cavity, and is easy to operate and high in stability.

Description

Fixed self-illuminating vaginal speculum for rats

technical field

The invention relates to a speculum for animal experiments for observation and operation on rat vagina, cervix and uterine cavity.

Background technique

At present, when observing and operating the vagina, cervix and uterine cavity of rats, there is no special vaginal speculum for rats, which is very inconvenient to operate.

Contents of the invention

In order to overcome the shortcoming that the above-mentioned prior art exists, the object of the present invention is to provide a kind of rat fixed type self-illumination vaginal speculum, and it can expand rat vagina, cervix and uterine cavity when observing and operating. The vagina is fixed and illuminated, and the rear part of the cavity is obviously enlarged to facilitate the operation of surgical instruments, and the operation is simple, convenient and stable.

In order to solve the above problems, the present invention adopts the following technical solutions: the fixed self-illuminating vaginal speculum for rats comprises:

The upper hinge includes an upper main piece and an upper expansion piece, the middle part of the upper main piece is curved and arched upward, and the upper expansion piece is connected to the front of the highest arched part of the upper main piece and extends forward;

The lower hinge includes a lower main piece and a lower expansion piece. The middle part of the lower main piece is bent downward and is depressed. The lower expansion piece is connected to the front of the lowest part of the depression of the lower main piece and extends forward;

The upper hinge is provided with a downward left upper connecting piece and a right upper connecting piece on both sides of the arch.

The lower hinge is provided with an upward left lower connecting piece and a right lower connecting piece on both sides of the depression,

The left upper connecting piece is hinged with the pin shaft of the left lower connecting piece; the right lower connecting piece is hinged with the right lower connecting piece pin; and the two pin shafts are coaxial;

The arch of the upper hinge is opposite to the depression of the lower hinge to form a cavity for observation and operation;

At least one side of the rear end of the upper hinge is provided with a downward positioning piece, and the positioning piece is provided with positioning teeth that snap into the rear edge of the lower hinge;

A lighting lamp is fixed under the front end of the upper expansion piece; the lighting lamp is connected in series with a battery and a power switch to form a lighting circuit;

Both sides of the lower hinge are respectively connected with a binding rope.

Further technical solutions:

In the fixed self-illuminating vaginal speculum for rats, the illuminating lamp is an LED light sheet.

In the fixed self-illuminating vaginal speculum for rats, a plurality of positioning teeth are provided on the positioning sheet, and the plurality of positioning teeth are arranged continuously along the vertical direction.

In the fixed self-illuminating vaginal speculum for rats, the rear end of the upper hinge is provided with an upward and forward curved disc, the battery is a button battery and is fixed on the disc, and the power switch is a miniature The power switch is also fixed on the disc.

In the fixed self-illuminating vaginal speculum for rats, the cavity formed by the arch of the upper hinge relative to the depression of the lower hinge gradually becomes larger along the direction from front to back.

In the fixed self-illuminating vaginal speculum for rats, the distance between the two pin shaft hinges is greater than the width of the rear end of the upper expansion piece and the rear end of the lower expansion piece.

In the fixed self-illuminating vaginal speculum for rats, the width of the rear end of the upper expansion sheet is equal to the width of the rear end of the lower expansion sheet; 2 times the width of the rear end of the dilator. It is ensured that the rear end of the cavity formed by the upper and lower hinges is obviously enlarged, so as to facilitate operation of surgical instruments in the cavity.

In the fixed self-illuminating vaginal speculum for rats, the binding rope is a self-shaping binding rope. The self-shaping binding rope is composed of a metal core and an outer skin covered on the metal core. It can be wrapped around the rat's hind limbs in the supine position during the operation to prevent the speculum from slipping out of the vagina.

The beneficial effects of the present invention are: it can expand the rat vagina, fix and illuminate the formed cavity when observing and operating the rat vagina, cervix and uterine cavity, and make the rear part of the cavity obviously enlarged to facilitate the operation The operation of the device is simple, convenient and stable.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

Fig. 1 is the front view of the embodiment of the present invention;

Fig. 2 is the top view of the embodiment of the present invention;

Fig. 3 is the left view of the embodiment of the present invention;

In the figure: 1 upper hinge, 11 upper main piece, 12 upper expansion piece, 13 left upper connection piece, 14 right upper connection piece, 15 positioning piece, 16 positioning tooth, 2 lower hinge, 21 lower main piece, 22 lower expansion piece , 23 left lower connection piece, 24 right lower connection piece, 3LED light piece, 4 disc, 5 micro power switch, 6 tie rope, 7 button battery.

Detailed ways

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the rat fixed self-illuminating vaginal speculum mainly includes an upper hinge 1 and a lower hinge 2 .

The upper hinge 1 includes an upper main piece 11 and an upper expansion piece 12. The middle part of the upper main piece 11 is curved and arched upwards, and the upper expansion piece 12 is connected to the front of the upper main piece 11 and extends forward.

The lower hinge 2 includes a lower main piece 21 and a lower expansion piece 22. The middle part of the lower main piece 11 is bent downwards and recessed. The lower expansion piece 22 is connected to the front of the lowermost part of the lower main piece 21 and extends forward.

The upper hinge 1 is provided with a downward left upper connecting piece 13 and a right upper connecting piece 14 on both sides of the arch. The lower hinge 2 is provided with an upward left lower connecting piece 23 and a right lower connecting piece 24 on both sides of the depression. The left upper connecting piece 13 is hinged with the left lower connecting piece 23 pin shafts; the right lower connecting piece 14 is hinged with the right lower connecting piece 24 pin shafts; and the two pin shafts are coaxial. When in use, the upper hinge 1 and the lower hinge 2 rotate around the pin to fully expand the rat vagina. The pin joints of the upper and lower hinges are arranged on both sides, which expands the exposure field of view for observing the rat cervix and uterine cavity without affecting the operation.

The arch of the upper hinge 1 is opposite to the depression of the lower hinge 2 to form a cavity for observation and operation. The cavity gradually becomes larger along the direction from front to back, avoiding the space limitation of local operations. limited possibilities.

In addition, in the fixed self-illuminating vaginal speculum for rats, the width of the rear end of the expansion piece of the upper hinge is equal to the width of the rear end of the expansion piece of the lower hinge; Less than twice the width of the rear end of the expansion piece of the upper hinge/the rear end of the expansion piece of the lower hinge. Ensure that the rear end of the cavity formed by the upper and lower hinges is obviously enlarged, so as to facilitate the operation of surgical instruments in the cavity.

At least one side of the rear end of the upper hinge 1 is provided with a downward positioning piece 15 , and the positioning piece 15 is provided with a positioning tooth 16 that engages with the rear edge of the lower hinge 2 . Positioning teeth 16 are stuck on the lower hinge, which can fix the opening and closing angles of the upper and lower hinges. There are multiple positioning teeth 16 on the positioning piece, and multiple positioning teeth 16 are arranged continuously along the up and down direction, so that it is convenient to adjust the opening angle of the upper and lower hinges, so as to achieve the purpose of adjusting and fixing the local vision, and the operation is simple .

A lighting lamp is fixed below the front end of the upper expansion sheet 12 , and the lighting lamp is an LED lamp sheet 3 . The rear end of the upper hinge is provided with an upwardly curved and arched disc 4, on which a miniature power switch 5 and a button battery 7 are fixed, and the LED light sheet 3 is connected with the button battery 7 and a button battery. The micro power switch 5 is connected in series to form a lighting circuit. When in use, the operator controls the LED light sheet 3 through the micro power switch 5 to fully illuminate the vagina and cervix of the rat, avoiding the difficulty of experimental observation and operation caused by the narrow and deep vagina of the rat.

Both sides of the lower hinge 2 are respectively connected with a binding rope 6, the binding rope can adopt a copper wire with a plastic film, and the speculum is fixed on the vaginal opening by winding the rat's supine and stretched hind limbs, so as to avoid the weak elasticity of the rat's vagina and It is easy to loosen and cause the speculum to move outward and fall off. The binding rope is also available for adopting other self-shaping binding ropes.

Claims (9)

1. The fixed self-illuminating vaginal speculum for rats is characterized in that it comprises: The upper hinge includes an upper main piece and an upper expansion piece, the middle part of the upper main piece is curved and arched upward, and the upper expansion piece is connected to the front of the highest arched part of the upper main piece and extends forward; The lower hinge includes a lower main piece and a lower expansion piece. The middle part of the lower main piece is bent downward and is depressed. The lower expansion piece is connected to the front of the lowest part of the depression of the lower main piece and extends forward; The upper hinge is provided with a downward left upper connecting piece and a right upper connecting piece on both sides of the arch. The lower hinge is provided with an upward left lower connecting piece and a right lower connecting piece on both sides of the depression, The left upper connecting piece is hinged with the pin shaft of the left lower connecting piece; the right lower connecting piece is hinged with the right lower connecting piece pin; and the two pin shafts are coaxial; The arch of the upper hinge is opposite to the depression of the lower hinge to form a cavity for observation and operation; At least one side of the rear end of the upper hinge is provided with a downward positioning piece, and the positioning piece is provided with positioning teeth that snap into the rear edge of the lower hinge; A lighting lamp is fixed under the front end of the upper expansion piece; the lighting lamp is connected in series with a battery and a power switch to form a lighting circuit; Both sides of the lower hinge are respectively connected with a binding rope. 2. The fixed self-illuminating vaginal speculum for rats according to claim 1, characterized in that: the illuminating lamp is an LED light sheet. 3. The fixed self-illuminating vaginal speculum for rats according to claim 1, characterized in that: there are a plurality of positioning teeth on the positioning sheet, and the plurality of positioning teeth are arranged continuously along the vertical direction. 4. The fixed self-illuminating vaginal speculum for rats according to claim 1, characterized in that: the rear end of the upper hinge is provided with an upwardly curved and arched disc, and the battery is a button battery and is fixed on the On the disc, the power switch is a miniature power switch and is also fixed on the disc. 5. The fixed self-illuminating vaginal speculum for rats according to claim 1, characterized in that: the cavity formed by the arch of the upper hinge and the depression of the lower hinge is along the direction from front to back. The direction gradually becomes larger. 6. The fixed self-illuminating vaginal speculum for rats according to claim 1, characterized in that: the distance between the hinges of the two pins is greater than the width of the rear end of the upper expansion piece and the rear end of the lower expansion piece . 7. The fixed self-illuminating vaginal speculum for rats according to claim 6 is characterized in that: the width of the rear end of the upper expansion sheet is equal to the width of the rear end of the lower expansion sheet; The distance is not less than twice the width of the rear end of the upper expansion piece/the rear end of the lower expansion piece. 8. The fixed self-illuminating vaginal speculum for rats according to claim 1, characterized in that: said binding rope is a self-shaping binding rope. 9. The fixed self-illuminating vaginal speculum for rats according to claim 8, characterized in that: the self-shaping binding rope is composed of a metal core and an outer skin coated on the metal core.

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