Obstetric Instruments Dr Madhavi Karki The blades are
Obstetric Instruments Dr. Madhavi Karki
The blades are of unequal breadth to facilitate the introduction into the vagina depending on its size. • It is used in obstetrics for : 1. To toilet the vagina following delivery 2. To visualize any injured site on the cervix or vagina 3. To inspect any local lesion causing bleeding either in APH/ threatened abortion
MULTIPLE TOOTHED VULSELLUM: It is used to catch hold the anterior lip of the cervix in D+E operation. As it produces trauma to the soft and vascular cervix, Allis tissue forceps is used instead.
is used to catch hold of the anterior lip of the cervix in D+E oper To hold the episiotomy wound during repair To catch hold of the torn ends of the sphincter ani externus prio suture in repair of complete perineal tear To hold the margins and angles of uterine flaps in LSCS
UTERINE SOUND It is a pointed, graduated, malleable, metallic uterine soun It is used prior to dilatation of the cervix in D+E operation the length of the uterine cavity and to note the position o
Cervical Dilators: It is used in dilatation of the cerv prior to evacuation operation. Degree of dilatation required: Incomplete abortion – sufficient introduce the index finger In suction evacuation – one size smaller than the size of suction cannula In M. T. P by D+E- sufficient to introduce the ovum forceps
OVUM FORCEPS: It has got no catch and the blades are slightly bent. Absenc catch minimizes uterine injury, if accidentally caught or cru conceptus.
UTERINE CURETTE: It maybe sharp at both the ends or sharp at one end and b other. Its common use in obstetrics is in the D+C for incomplete In D+E operation, the curette is done by blunt curette as u is very soft.
Plastic Suction Cannula (Karman’s) 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 oneas it causes less damage to the uterine wall and the
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