Speculum
First Claim
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1. A speculum comprising:
- dilator means for insertion into a body cavity of a patient, said dilator means comprising at least two pivotal two blade members, each blade member being curved in a direction transverse to its length and having a rear terminating end which is provided with a substantially wedge shaped portion; and
opening means being movable for opening said dilator means to dilate said body cavity, wherein said opening means is provided with arcuate portions which contact and bear against the substantially wedge shaped portions of said blade members when said opening means is moved in a first direction to cause said blade members to pivot such that said dilator means opens to dilate said body cavity.
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Abstract
A speculum having a dilator for insertion into a body cavity of a patient and an opening mechanism for opening the dilator to dilate the body cavity. The dilator has at least two dilator blade members which are pivotal. The opening mechanism consists of a collar which is rotatable to contact and bear against the blade members. This causes the blade members to pivot and move apart, thereby opening the dilator. This results in the body cavity of the patient being dilated which allows for easy examination thereof.
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Citations
34 Claims
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1. A speculum comprising:
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dilator means for insertion into a body cavity of a patient, said dilator means comprising at least two pivotal two blade members, each blade member being curved in a direction transverse to its length and having a rear terminating end which is provided with a substantially wedge shaped portion; and opening means being movable for opening said dilator means to dilate said body cavity, wherein said opening means is provided with arcuate portions which contact and bear against the substantially wedge shaped portions of said blade members when said opening means is moved in a first direction to cause said blade members to pivot such that said dilator means opens to dilate said body cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A speculum comprising:
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dilator means for insertion into a body cavity of a patient, said dilator means comprising at least two blade members; support means about which said blade members are disposed and on which said blade members are pivotally supported; a collar surrounding at least a portion of each blade member, so that the blade members are pivotally retained between said support means and said collar, with a rear terminating end of each blade member extending beyond said collar and being provided with a substantially wedge shaped portion; and opening means rotatably provided on said collar and including arcuate portions which contact and bear against the rear terminating end of respective blade members at said substantially wedge shaped portions when said opening means is rotated in a first direction to cause said blade members to pivot on said support means such that said dilator means opens and dilates said body cavity. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification