Novel uterine cavity expander

A dilator and uterine cavity technology, applied in the field of uterine expansion device and gynecological surgical instruments, can solve the problems of inability to suction out the target gestational sac tissue, inability to apply abortion, affecting surgical observation and operation, etc., and achieves simple structure and reliable performance. , the effect of convenient disinfection

Active Publication Date: 2013-10-16
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although liquid uterine distension is widely used at present, it is mostly used in hysteroscopic pathological examination, but it cannot be applied in abortion
The reasons are as follows: firstly, when the intrauterine cavity is injected with liquid and curettage is performed, the bleeding in the intrauterine cavity is easy to spread and dissolve in the medium liquid, resulting in discoloration of the liquid, which affects the operation observation and operation; secondly, during negative pressure suction, there is A large amount of fluid interferes internally, and it is likely that the target gestational sac tissue cannot be successfully sucked out, resulting in an inability to successfully complete the operation

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] as attached figure 1 As shown, a novel uterine cavity dilator includes several expansion wires 2, an inner tube 3, an outer sheath 4 and a tee 5; the expansion wire 2 is a closed ring made of a material with a shape memory function, such as Nitinol wire. A plurality of expansion wires 2 are evenly arranged at the end of the inner tube 3 along the circumferential direction and radially. By moving the outer sheath tube 4, the expansion wire 2 can be shrunk in the outer sheath tube 4, or extended out of the outer sheath tube 4, and expanded into a shape suitable for the uterine cavity. Due to the shape and material properties of the expansion wire 2 itself, it has extremely high flexibility, and the contour shape of the uterine cavity formed when the expansion wire 2 is expanded and formed well conforms to the uterine cavity, greatly reducing the stimulation of t...

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Abstract

The invention discloses a novel uterine cavity expander. The novel uterine cavity expander comprises a plurality of expansion wires, an inner tube, a sheath tube and a tee joint, wherein the expansion wires are closed rings made of materials having the shape memory function, the front end of the inner tube is fixedly connected with the expansion wires, and the tail end of the inner tube is fixedly connected with the main path end of the tee joint; the sheath tube is sleeved outside the inner tube. The novel uterine cavity expander is a uterus expansion device which is easy to operate and high in reliability, avoids injuries to the human body caused by mechanical uterus expansion and gas uterus expansion, and avoids obstacles brought by liquid uterus expansion to visualized induced abortion operation. The novel uterine cavity expander is simple in structure, reliable in performance, and convenient to disassemble and disinfect.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a gynecological surgical instrument, in particular to a uterine expansion device for gynecological abortion and pathological examination of the uterine cavity. Background technique [0002] Uterine dilatation technology is widely used in gynecological surgery and intrauterine examination. Its fundamental function is to expand the closed uterine cavity to form a visual environment and an operating environment. The methods of uterine distention currently used in clinical practice can be divided into two categories: mechanical uterine distension and medial uterine distension. [0003] Mechanical uterine distension is an early method of uterine distension, which uses a transparent rubber film to cover the front end of the hysteroscope and injects gas or water to expand the vesicles to expand the uterine cavity. This method is basically not suitable for intrauterine surgery in the early stage...

Claims

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Application Information

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IPC IPC(8): A61B17/42A61B1/32
Inventor 倪中华易红顾兴中巨小龙臧波
Owner SOUTHEAST UNIV
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