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Minisize catheter for embryo transplantation by using endoscope

An embryo transfer and catheter technology, applied in endoscopes, endoscope cutting instruments, applications, etc., can solve problems such as embryo damage, suboptimal results, and decreased success rate of IVF eggs

Inactive Publication Date: 2007-05-02
NAPOLI LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although these prior art methods of embryo transfer are generally satisfactory for the intended purpose, damage to the delicate embryo by injection or "attachment" can lead to suboptimal outcomes and reduced success rates for IVF transfers, etc. question

Method used

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  • Minisize catheter for embryo transplantation by using endoscope
  • Minisize catheter for embryo transplantation by using endoscope
  • Minisize catheter for embryo transplantation by using endoscope

Examples

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Embodiment Construction

[0026] Referring now to the drawings, FIGS. 1 to 3 show one embodiment of a microcatheter. In this embodiment, a microcatheter 10 includes a movable syringe 20 with a plunger 21 connected to a flexible hollow shaft 25. Proximal end 22, the distal end of the hollow shaft forms a shaped end 30, which in one embodiment may be attached to a smooth locking mount.

[0027] Shaft 25 forms a lumen therethrough, typically for the introduction of one or more embryos into the uterus of a human. In one embodiment, shaft 25 is made of extruded polymer plastic. A suitable polymer for shaft 25 is preferably polycarbonate (eg, clear polycarbonate). Tetrafluoroethylene (such as TEFLON TM ) materials are also very suitable. The outer diameter of the proximal portion of the shaft 25 is on the order of 1 millimeter or less, and the shaft 25 includes a distal portion having a shaped end 30 .

[0028] The shaped tip 30 of the microcatheter 10 includes a base 31 having a diameter similar to that...

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Abstract

A microcatheter (10) for endoscopic embryo transfer is proposed, including a flexible hollow shaft (25) with a rear end (22) and an open front end (30), a slanted tip extending from the open front end (34), and an incision formed around at least part of the perimeter of the beveled tip. The hysteroscope (200) includes a handle (227), a first tube body (211) connected to the handle, and a second tube body (212). The second tube body is made of polymer material and is connected to the distal end of the first tube body. end, the distal end forms a guide surface (231), wherein the first tube body and the second tube body are collinearly aligned and together form a first lumen (220) extending from the inlet end (216) to the guide surface; wherein the The size of the second tube body is suitable for insertion into the human uterus. The outer diameter of the guide surface is smaller than the outer diameter of the second tube body. Methods using a hysteroscope with a single operating channel have also been proposed.

Description

field of invention [0001] The present invention generally relates to an intrauterine device, including a hysteroscope and related devices, for microsurgery in the field such as embryo transfer. Background technique [0002] Improving the success rate of IVF depends on many factors, one of which is transporting or delivering the embryos to the lining of the uterus and successfully implanting the embryos into the lining of the uterus. It is known from the prior art that assisting the embryo to attach or implant into the intended area of ​​the endometrium of the uterine wall, rather than simply releasing the embryo into the uterus, will increase the success rate of IVF. [0003] A method of assisting embryo transfer is described in US Patent No. 6,010,448 to Thompson. Embryos are delivered using an endoscopic device through a flexible catheter, reaching the endometrium and held in place with adhesives. [0004] Another method of transferring embryos can be found in Chenette's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/435A61B1/303A61B1/00A61B17/32A61B17/425
CPCA61B1/07A61B1/303A61B17/435A61B17/32053A61B17/320016A61B1/00167
Inventor M·M·卡姆拉瓦J·E·麦克唐纳
Owner NAPOLI LLC
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