Obstetric Instruments. Dr. Madhavi Karki. SIM’S SPECULUM:. MULTIPLE TOOTHED VULSELLUM:. ALLIS TISSUE FORCEPS. It is used to catch hold of the anterior lip of the cervix in D+E operation. To hold the episiotomy wound during repair
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Dr. Madhavi Karki
It is used to catch hold of the anterior lip of the cervix in D+E operation.
To hold the episiotomy wound during repair
To catch hold of the torn ends of the sphincter ani externus prior to
suture in repair of complete perineal tear
To hold the margins and angles of uterine flaps in LSCS
It is a pointed, graduated, malleable, metallic uterine sound.
It is used prior to dilatation of the cervix in D+E operation to know
the length of the uterine cavity and to note the position of the uterus
It is used in dilatation of the cervix
prior to evacuation operation.
Degree of dilatation required:
Incomplete abortion – sufficient to
introduce the index finger
In suction evacuation – one size
smaller than the size of suction
In M.T.P by D+E- sufficient to
introduce the ovum forceps
It has got no catch and the blades are slightly bent. Absence of the
catch minimizes uterine injury, if accidentally caught or crushing of
It maybe sharp at both the ends or sharp at one end and blunt at the
Its common use in obstetrics is in the D+C for incomplete abortion
In D+E operation, the curette is done by blunt curette as uterine wall
is very soft.
It is of different sizes and the approximate size required for a
particular case equals to the weeks of pregnancy to be terminated
The plastic cannula has got advantages over a metallic one-
as it causes less damage to the uterine wall and the products
sucked out can be visible. The vacuum must be broken before