CN209377699U - A kind of novel embryo transfer tube assembly preventing blocking - Google Patents

Abstract

The utility model discloses a kind of novel embryo transfer tube assemblies for preventing blocking, including inner tube, outer tube and tube core, the front end of the tube core is equipped with bulb, and the bulb is soft spherical structure, and the diameter of the bulb is slightly larger than the internal diameter of the outer tube.In the embryo transfer tube assembly of the utility model, a tube core is equipped in outer tube, the bulb of tube core acts on the nozzle first is that closing outer tube front end, prevent lumen from blocking, second is that keeping the nozzle overall appearance of outer tube front end rounder and more smooth, make outer tube insertion more smooth, it is smaller to uterine neck and uterine cavity mucosa injury, to improve Success Rate of Embryo Transfer and Clinical Pregnancy Rate in, patient is allowed to be benefited to the greatest extent.

Description

A kind of novel embryo transfer tube assembly preventing blocking

Technical field

The utility model relates to embryo transfer technology field, specially a kind of novel embryo transplantation tube group for preventing blocking Part.

Background technique

Vitro fertilization-embryo implanting is to treat infertile main means at present, most important one step first is that The embryo that culture in vitro fertilization obtains is moved back to the process of patient's uterine cavity, the disposable work that embryo transfer uses by embryo transfer Tool is embryo transplantation tube, and embryo transplantation tube is divided into outer tube and inner tube two parts, as shown in Figure 1, first by clinician by embryo The outer tube of grafts is inserted into uterine cavity by cervix opening, until nozzle is close to palace bottom；At the same time, Embryo Culture room Embryo is drawn at the nearly nozzle of embryo transplantation tube inner tube by technical staff；The inner tube for having inhaled embryo is inserted into outer tube lumen, along Outer tube lumen enters uterine cavity, and to inner tube nozzle beyond at outer tube nozzle 10mm, under B ultrasound monitoring, embryo is injected into uterine cavity；Simultaneously Interior place's pipe is withdrawn from, whether test under microscope has embryo to remain, whether there is or not blocking, tube walls for lumen whether there is or not staining, to assess embryo Smoothly whether success, data publish and laboratory show that inner tube occurs to block or stain and without blocking nothing for tire transplanting The pregnancy rate stained has notable difference, during leading to interior blockage or being outer tube entrance the reason of staining, cervical mucus, mistake Bleeding caused by mechanical damage and internal film tissue etc. enter outer tube lumen when uterine neck, and inner tube is when passing through outer tube lumen Dye is just blocked or applies by these tampers, to influence transplantation effect.Presently commercially available all grafts outer tube nozzles are entirely Open, this structure is to lead to the basic reason of blocking, how to guarantee outer tube lumen be not plugged up during being inserted into or Applying dye is people's problem in the urgent need to address.

Utility model content

The technical problems to be solved in the utility model is to overcome existing defect, provides a kind of novel embryo for preventing blocking Transplant tube assembly, be outer tube be inserted into uterine cavity before the tube core that can be taken out is previously inserted in outer tube, thus to Outer Tube top into Row closing can effectively solve the problems in background technique so as to effectively avoid outer tube lumen from being blocked or apply dye.

To achieve the above object, the utility model provides the following technical solutions:

A kind of novel embryo transfer tube assembly preventing blocking, including inner tube, outer tube and tube core, the front end of the tube core are set There is bulb, the bulb is soft spherical structure, and the diameter of the bulb is slightly larger than the internal diameter of the outer tube, with The bulb for meeting tube core can move in outer tube and can get lodged in requirement on the nozzle of outer tube front end.

Preferably, the side of the bulb is vertically provided with several stomata slots, shape between stomata slot and outer tube wall It at gap, prevents from generating negative pressure when extraction tube core between bulb and outer tube, pipe is removed in influence, to prevent damage inner membrance group It knits；In addition, setting stomata slot is convenient for the bulb of the tube core in the nozzle insertion and extraction of outer tube to be more easily deformed, so that The insertion and extraction of tube core are more convenient.

Preferably, the tube core is polyethylene tube core or silicon rubber tube core or polyvinyl chloride tube core.

Preferably, the outer tube is that polyethylene (PE) is managed or polyvinyl chloride (PVC) is managed or silicone rubber tube, described Inner tube is that stainless steel tube or polyurethane (TPU) are managed.

Preferably, the bulb of the tube core is spheroidal or elliposoidal structure.

Compared with prior art, the utility model has the beneficial effects that in the embryo transfer tube assembly of the utility model, A tube core is equipped in outer tube, the bulb of tube core acts on the nozzle first is that closing outer tube front end, prevents lumen from blocking, second is that making The nozzle overall appearance of outer tube front end is rounder and more smooth, makes outer tube insertion more smooth, smaller to uterine neck and uterine cavity mucosa injury, to mention High Success Rate of Embryo Transfer and Clinical Pregnancy Rate in, allow patient to be benefited to the greatest extent.

Detailed description of the invention

Fig. 1 is embryo transplantation tube operation schematic diagram in the prior art；

Fig. 2 is state diagram of the tube core in outer tube in the utility model；

Fig. 3 is the overlooking structure diagram of the outer tube in the utility model with tube core.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of novel embryo transplantation tube group preventing blocking Part, including inner tube 1, outer tube 2 and tube core 3, the front end of tube core 3 are equipped with bulb 31, and bulb 31 is soft spherical structure, and The diameter of bulb 31 is slightly larger than the internal diameter of outer tube 2, can move and can get lodged in outer tube 2 to meet the bulb 31 of tube core 3 Requirement on the nozzle of 2 front end of outer tube.I.e. since bulb 31 is soft spherical structure, the size of bulb 31 only needs to be arranged At the internal diameter greater than outer tube 2, while needing satisfaction that can pass through in outer tube 2 within the scope of its elastic compression.

In the utility model, the side of bulb 31 is vertically opened there are three stomata slot 32, stomata slot 32 and 2 inner wall of outer tube it Between form gap, generate negative pressure between bulb 31 and outer tube 2 when preventing extraction tube core 3, pipe is removed in influence, so that anti-stop loss Hurt internal film tissue；In addition, setting stomata slot 32 is convenient for the bulb 31 of the tube core 3 in the nozzle insertion and extraction of outer tube 2 to be easier to In deformation, so that the insertion and extraction of tube core 3 are more convenient.

The material selection of the pliability of hardness and bulb 31 when in order to guarantee that tube core 3 is inserted into outer tube 2, tube core 3 is poly- Ethylene or silicon rubber or polyvinyl chloride, and the material selection polyethylene (PE) of outer tube 2 or polyvinyl chloride (PVC) or silicon rubber, it is interior The material selection stainless steel or polyurethane (TPU) of pipe 1.

The bulb 31 of the tube core 3 of the present embodiment is spheroidal, and certainly, bulb 31 may be designed in elliposoidal structure Deformation.

The process of embryo transfer is carried out using this embryo transplantation tube and working principle is summarized as follows: dismantling outer packing first, The outer tube for having inner packing and inner tube are transferred to respectively to implement the clinician and laboratory technicians that embryo transfer operates.Face Bed doctor is dismantled the inner packing of outer tube by sterile working specification, has been pre-filled with the tube core that can be taken out 3 in the lumen of outer tube 2, It is stuck in the bulb 31 of tube core 3 just on the nozzle of outer tube 2.Outer tube 2 is inserted into uterine cavity through cervix opening under B ultrasound guide, is reached Behind position, then tube core 3 is slowly extracted out and removes pipe, tube core 3 guarantees not having cervical mucus, inner membrance during outer tube 2 is intubated Tissue and clot etc. enter and block outer tube.After outer tube 2 is plugged, embryo is inhaled in into inner tube 1 by laboratory technicians, It allows embryo to be at away from nozzle 3-5mm, is followed by one section of bubble immediately following embryo, it, will to facilitate the propulsion situation of B ultrasound observation embryo The inner tube 1 for having inhaled embryo is inserted into from 2 tail portion opening of outer tube, and 1 nozzle of inner tube enters uterine cavity, rotating bolus injection by 2 nozzle of outer tube Syringe mounted in 1 tail portion of inner tube injects embryo into uterine cavity, after the bubble after embryo is observed under B ultrasound carries out uterine cavity, slowly Outer tube 2 is withdrawn from together with inner tube 1 from uterine cavity, repeated flushing inner tube 1, after confirmation is without embryo's residual, i.e. completion embryo transfer Process.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of novel embryo transfer tube assembly for preventing blocking, which is characterized in that including inner tube, outer tube and tube core, the pipe The front end of core is equipped with bulb, and the bulb is soft spherical structure, and the diameter of the bulb is outer slightly larger than described The internal diameter of pipe.

2. novel embryo transfer tube assembly according to claim 1, which is characterized in that the side of the bulb is vertical Several stomata slots are provided with, form gap between stomata slot and outer tube wall.

3. novel embryo transfer tube assembly according to claim 1, which is characterized in that the tube core is polyethylene tube core Or silicon rubber tube core or polyvinyl chloride tube core.

4. novel embryo transfer tube assembly according to claim 1, which is characterized in that the outer tube be polyethylene pipe or Polyvinyl chloride pipe or silicone rubber tube.

5. novel embryo transfer tube assembly according to claim 1, which is characterized in that the inner tube be stainless steel tube or Person's polyurethane tube.

6. novel embryo transfer tube assembly according to claim 1, which is characterized in that the bulb of the tube core is ball Shape or elliposoidal structure.