阅读说明：本技术 胚胎移植导管装置 (Embryo transfer catheter device ) 是由 管筱磊 朱孙瑜 章建昌 于 2021-10-21 设计创作，主要内容包括：本发明公开了一种胚胎移植导管装置,其包括外管组件和内管组件,所述外管组件包括外管,所述外管的尾端连接有郁金香头,所述郁金香头设有通孔,所述内管组件包括内管,所述内管的尾端可穿过所述外管内腔后从所述郁金香头的通孔穿出,所述内管的头端与所述外管的头端密封连接。本发明胚胎移植导管装置可以更好的保存受精卵并显示受精卵,可减少手术的失误,在严格测试下不漏液不漏气,可减少手术中负压的形成,增加胚胎移植成功率。(The invention discloses a embryo transplantation catheter device which comprises an outer tube assembly and an inner tube assembly, wherein the outer tube assembly comprises an outer tube, the tail end of the outer tube is connected with a tulip head, the tulip head is provided with a through hole, the inner tube assembly comprises an inner tube, the tail end of the inner tube can penetrate through the inner cavity of the outer tube and then penetrate out of the through hole of the tulip head, and the head end of the inner tube is connected with the head end of the outer tube in a sealing mode. The embryo transplantation catheter device can better preserve and display the fertilized eggs, can reduce the errors of the operation, does not leak liquid or gas under strict test, can reduce the formation of negative pressure in the operation and increases the success rate of embryo transplantation.)

1. The utility model provides a pipe device is transplanted to embryo, its characterized in that, includes outer tube subassembly and inner tube subassembly, the outer tube subassembly includes the outer tube, the trailing end connection of outer tube has the tulip head, the tulip head is equipped with the through-hole, the inner tube subassembly includes the inner tube, the tail end of inner tube can pass follow behind the outer tube inner chamber follow the through-hole of tulip head is worn out, the head end of inner tube with the head end sealing connection of outer tube.

2. The embryo transfer catheter device according to claim 1, wherein a first connector is connected to the head end of the outer tube, a second connector is connected to the head end of the inner tube, and the first connector and the second connector are connected in a sealing mode.

3. The embryo transfer catheter device according to claim 2, wherein the first joint comprises a waist drum-shaped first pipe body with a concave middle part, a tapered first pipe section is arranged at the tail end of the first pipe body, and the front end of the first pipe body is in sealed splicing with the tail end of the second joint.

4. The embryo transfer catheter device according to claim 3, wherein the second joint comprises a second tube, a second tube section is arranged at the tail end of the second tube body and is inserted into the front end of the first tube body, an annular first protrusion is arranged on the outer surface between the second tube section and the second tube body, and the front end of the first tube body abuts against the first protrusion.

5. The embryo transfer catheter device according to claim 4, wherein a plurality of annular anti-slip protrusions are arranged on the outer surface of the first tube at intervals, and the front end and the front outer surface of the second tube are respectively provided with annular second protrusions and annular third protrusions.

6. The embryo transfer catheter device according to claim 1, wherein a positioning ring is slidably mounted on the outer surface of the outer tube near the tail end.

7. The embryo transfer catheter device of claim 6, wherein the positioning ring is provided with a first ultrasonic marker.

8. The embryo transfer catheter device of claim 7, wherein the first ultrasound marker is a visualization line disposed on a fixation ring, the visualization line having a visualization agent.

9. The embryo transfer catheter device according to claim 1, wherein a support bracket is mounted on the outer surface of the inner tube near the tip end.

10. The embryo transfer catheter device according to claim 9, wherein the outer surface of the support holder is provided with a graduated scale along the length direction of the inner tube.

11. The embryo transfer catheter device according to claim 1, wherein the inner tube is a flexible hose, and the tail end of the inner tube is provided with a second ultrasonic mark.

Technical Field

The invention relates to the technical field of medical instruments, in particular to an embryo transplantation catheter device suitable for fresh embryo and frozen recovery embryo transplantation.

Background

The final step of the tube baby is to place the screened transplantable embryo into the best position of the uterine cavity through the transplantation catheter at the transplantation window, however, the transplantation difficulty caused by cervical and uterine cavity adhesion is not rare.

The difficulty of transplantation caused by cervical adhesions makes most transplantation centers use double catheters to complete embryo transplantation. Firstly, a harder outer tube is placed into a proper position of a uterine cavity inwards along the external cervical orifice, then a soft inner tube filled with an embryo is placed from the inner cavity of the outer tube, and then an injector is used for injecting embryo carrier liquid into a target position in the uterine cavity.

However, existing double catheter grafts also suffer from a number of serious drawbacks:

1. myoma compression, endopathy invasion and cervical adhesion cause changes of structures of an internal opening and an external opening of a cervix and a uterine cavity, so that a softer silica gel catheter is difficult to enter a proper position of the uterine cavity, and a probe is required to expand the uterus if necessary, so that endometrium can be damaged;

2. the head end of the conventional outer tube is placed at the position 2cm away from the uterine bottom and the thickest part of the intima, and the outer catheter is not marked clearly under ultrasound, so that the position of the outer opening of the outer tube cannot be accurately reflected;

3. the ultrasonic position can not be accurately displayed after the inner tube is loaded into the embryo, the embryo loading liquid section is displayed only by the liquid loaded before and after the embryo, the positioning is not accurate, and partial transshipment liquid is easy to remain or suck back.

Therefore, the present inventors have made extensive studies to design an embryo transfer catheter device that can solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a catheter device for embryo transplantation, which can better preserve and display fertilized eggs, reduce the error of operation, prevent liquid and air leakage under strict test and reduce the formation of negative pressure in the operation.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a pipe device is transplanted to embryo, includes outer tube subassembly and inner tube subassembly, the outer tube subassembly includes the outer tube, the trailing end connection of outer tube has the tulip head, the tulip head is equipped with the through-hole, the inner tube subassembly includes the inner tube, the tail end of inner tube can pass follow behind the outer tube inner chamber the through-hole of tulip head is worn out, the head end of inner tube with the head end sealing connection of outer tube.

Preferably, the head end of the outer pipe is connected with a first joint, the head end of the inner pipe is connected with a second joint, and the first joint is in sealing connection with the second joint.

Preferably, the first joint comprises a waist drum-shaped first pipe body with a concave middle part, a tapered first pipe section is arranged at the tail end of the first pipe body, and the front end of the first pipe body is hermetically spliced with the tail end of the second joint.

Preferably, the second joint comprises a second pipe body, a second pipe section inserted into the front end of the first pipe body is arranged at the rear end of the second pipe body, an annular first protrusion is arranged on the outer surface between the second pipe section and the second pipe body, and the front end of the first pipe body abuts against the first protrusion.

Preferably, a plurality of annular anti-slip protrusions are arranged on the outer surface of the first pipe body at intervals, and annular second protrusions and annular third protrusions are respectively arranged on the front end and the outer surface of the front portion of the second pipe body.

Preferably, a positioning ring is slidably mounted on the outer surface of the outer tube near the tail end.

Preferably, a first ultrasonic mark is arranged on the positioning ring.

Preferably, the first ultrasonic mark is a development line provided on the stationary ring, the development line having a developer.

Preferably, a supporting bracket is arranged on the outer surface of the inner pipe close to the head end.

Preferably, the outer surface of the support bracket is provided with a graduated scale along the length direction of the inner tube.

Preferably, the inner tube is a flexible hose, and the tail end of the inner tube is provided with a second ultrasonic mark.

After the scheme is adopted, the embryo transfer catheter device sucks fertilized eggs fertilized in vitro from the nutrient solution to the tulip head at the tail end of the outer tube for storage, so that the fertilized egg survival rate is higher, and the fertilized eggs are not easily damaged when the inner tube pushes the fertilized eggs. When the outer tube is inserted into the uterus of a human body through the cervical clamp in use, the proper position of the outer tube in the uterine cavity can be determined by ultrasonic echo through the first ultrasonic mark arranged on the positioning ring, the positioning ring is fixed at the uterine opening after the outer tube is placed at the proper position, so that the tulip head is positioned at the proper position in the uterus, and the tulip head can be obviously displayed under ultrasonic waves, so that the situation of clear fertilized eggs can be seen, and misoperation of doctors is reduced. And then, the inner tube is pushed inwards according to the size marked by the scale ruler, so that the tail end of the inner tube penetrates out of the tulip head, as the tail end of the inner tube is provided with a second ultrasonic mark, a transplantation embryo frame can be formed by the ultrasonic mark in clinic, in the process of pushing the fertilized eggs in the tulip head by the inner tube, embryo transplantation liquid is loaded into the transplantation embryo frame, and the moving track of the embryo transplantation liquid drop in the inner tube can be dynamically displayed in real time through ultrasonic positioning. Finally, pushing the fertilized eggs stored in the tulip head into a proper position of the uterus of a human body, and after the action is finished, sealing and matching the first joint of the outer pipe and the second joint of the inner pipe to ensure a sealed environment between the outer pipe and the inner pipe, so that air leakage and liquid leakage do not occur between the outer pipe and the inner pipe; the supporting support arranged on the inner tube is made of stainless steel materials, so that the supporting function is achieved, the inner tube is more convenient to push, and the scale is arranged on the supporting support, so that the pushing distance can be better confirmed, and the accurate operation of the operation is ensured; the built-in tube made of PU or silica gel materials is embedded in the outer tube, and the built-in tube has memory activity, can be bent to a required angle to be attached to the angle of the uterine neck and the uterine cavity, and particularly aims at the transplantation difficulty caused by myoma compression, cervical and uterine cavity adhesion and cervical and uterine cavity angle transformation; the inner tube is made of silica gel, the flexibility of the inner tube can ensure that the inner tube is not easy to damage fertilized eggs when the fertilized eggs are pushed, the inner tube can return to the lower part of the tulip head to be flushed and pushed according to a scale ruler on the inner tube after the fertilized eggs are pushed, and the inner tube can be prevented from dropping and being taken out of embryos due to negative pressure when being pulled out from the outer tube.

Drawings

FIG. 1 is a schematic view showing a separated state of an embryo transfer catheter device according to the present invention;

fig. 2 is a schematic view of a connection structure of a first joint of an outer pipe and a second joint of an inner pipe according to the present invention.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

As shown in FIG. 1, the embryo transfer catheter device of the present invention comprises an outer tube assembly 1 and an inner tube assembly 2.

The outer tube assembly 1 comprises an outer tube 3, and the outer tube 3 is made of PC or PVC material. The inner cavity of the outer tube 3 is embedded with an inner tube (not shown in the figure) made of PU or silica gel material.

The head end of the outer tube 3 is connected with a first joint 4, and as shown in fig. 2, the first joint 4 includes a waist drum shaped first tube 12 with a concave middle, the tail end of the first tube 12 is connected with a tapered first tube section 13, and the outer surface of the first tube section 13 is tapered towards the tail end. A plurality of annular anti-slip protrusions 14 are spaced apart from the outer surface of the first tube 12.

The tail end of the first pipe section 13 is connected with a tulip head 5. The tulip head 5 is made of PC or PVC material and is formed with the tail end of the outer tube 3 through head melting. The tulip head 5 is provided with a through hole (not shown in the figure).

The outer surface of the outer tube 3 near the tail end is provided with an annular positioning ring 6 in a sliding way. The positioning ring 6 is provided with a first ultrasonic mark, the first ultrasonic mark of this embodiment is a developing line 7 disposed on the fixing ring 6, the developing line 7 may be set in color, the developing line 7 of this embodiment is set in blue, and of course, the first ultrasonic mark may also adopt a developing structure with other shapes, which is not limited here. The development line 7 is formed by direct double extrusion at the time of fabrication. The development line 7 contains a developer and is slightly convex, thereby functioning as an ultrasonic and image development.

Inner tube subassembly 2 includes inner tube 8, and inner tube 8 adopts flexible hose to make, and this embodiment inner tube 8 adopts the silicone tube. The head end of the inner tube 8 is connected with a second joint 9. Referring to fig. 2, the front end of the first pipe 12 can be sealingly engaged with the rear end of the second connector 9. The second joint 9 comprises a second pipe body 15, the tail end of the second pipe body 15 is connected with a second pipe section 16 which can be spliced with the front end of the first pipe body 12, an annular first bulge 17 is arranged on the outer surface between the second pipe section 16 and the second pipe body 15, and the front end of the first pipe body 12 abuts against the first bulge 17. The front end and the front outer surface of the second tube 15 are respectively provided with a second protrusion 18 and a third protrusion 19.

The tail end of the inner tube 8 can penetrate through the inner cavity of the outer tube 3 and then penetrate out of the through hole of the tulip head 5. The outer surface of the inner tube 8 near the tail end is provided with a second ultrasonic mark which forms a transplantation embryo frame.

After the tail end of the inner tube 8 passes through the tulip head 5, the outer tube 3 can be connected with the second connector 9 of the inner tube 8 in a sealing manner through the first connector 4, in this embodiment, the sealing connection manner is a luer connector.

A supporting bracket 10 is arranged at the joint of the outer surface of the inner pipe 8 and the second joint 9, and the supporting bracket 10 is made of stainless steel materials and is in a sleeve shape. The outer surface of the support bracket 10 is provided with a graduated scale 11 along the length direction of the inner tube 8.

During the use, inhale the fertilized egg of in vitro fertilization from the nutrient solution to the tulip head 5 department of outer tube 3 tail end and preserve, insert inner tube 8 by the head end department of outer tube 3, until pushing away to the head end department of tulip head 5, insert outer tube 3 to human uterus through cervical clamp, through the development line 7 that sets up on the position circle 6, can place the suitable position in the uterine cavity by ultrasonic echo decision outer tube 3, place the back and be fixed in the uterus mouth with position circle 6, tulip head 5 is located intrauterine suitable position like this, the demonstration that tulip head 5 can be obvious under the ultrasonic wave, the condition of seeing the fertilized egg that can be clear like this, thereby reduce doctor's misoperation. And then, the inner tube 8 is pushed inwards according to the size marked by the scale ruler 11, so that the tail end of the inner tube 8 penetrates out of the tulip head 5, a transplantation embryo frame is formed due to the fact that the tail end of the inner tube 8 is provided with a second ultrasonic mark, embryo transplantation liquid is loaded into the transplantation embryo frame in the process that the inner tube 8 pushes the fertilized eggs in the tulip head 5, and the moving track of the embryo transplantation liquid drop in the inner tube 8 can be dynamically displayed in real time through ultrasonic positioning. And finally, the fertilized eggs preserved in the tulip head 5 are pushed into a proper position of the uterus of a human body, after the action is completed, the first joint 4 of the outer pipe 3 is in sealing fit connection with the second joint 9 of the inner pipe 8, so that the sealing environment between the outer pipe 3 and the inner pipe 8 is ensured, and air leakage and liquid leakage are avoided between the two. The supporting bracket 10 on the inner tube 8 is made of stainless steel materials, so that the supporting effect is achieved, the inner tube 8 can be pushed more conveniently, and the scale 11 is arranged on the supporting bracket 10, so that the pushing distance can be better confirmed, and the accurate operation of the operation can be ensured; the built-in tube made of PU or silica gel materials is embedded in the outer tube 3, and can be bent to a required angle to be attached to the angle of the uterine neck and uterine cavity due to memory activity, so that the implantation difficulty caused by myoma compression, cervical and uterine cavity adhesion and cervical and uterine cavity angle transformation is particularly solved; make inner tube 8 with the silica gel material, its pliability can guarantee that inner tube 8 is difficult for damaging the embryonated egg when the propelling movement embryonated egg, and after accomplishing the embryonated egg propelling movement, inner tube 8 can be according to scale 11 on it and roll back to the tulip head 5 below and wash and push, can prevent that inner tube 8 from causing the dropping and the taking out of embryo because of the negative pressure when taking out from outer tube 3.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.