CN218651972U

CN218651972U - Embryo transplantation device for reaching endometrium through myometrium

Info

Publication number: CN218651972U
Application number: CN202221344406.8U
Authority: CN
Inventors: 蔡立义; 曹炜雄; 郭秋填; 许嘉仪
Original assignee: Hebei Xuanku Pharmaceutical Technology Co ltd
Current assignee: Hebei Xuanku Pharmaceutical Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-03-21
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to a through endometrium embryo transfer device of myometrium layer, it includes pjncture needle and sets up the embryo transfer pipe in the pjncture needle, the pjncture needle is the rigidity material. The utility model discloses a pjncture needle of rigidity material can utilize the pjncture needle to pass the vaginal wall easily, through the myometrium, makes the most advanced endometrium of pjncture needle reacing, alright utilize embryo transfer pipe to send endometrium department to pour into the embryo through the puncture needle, accomplishes embryo transfer operation. Solves the problem of difficult embryo transplantation caused by diverticulum of uterine scars after cesarean section or patients with more severe cervical canal bending. Adopt the utility model discloses an embryo transfer device can implement embryo transfer smoothly, can also prevent effectively that human tissue from entering into the pjncture needle at the in-process that the pjncture needle impaled the vaginal wall, and the tip of guarantee embryo transfer pipe can insert the needle point position department of pjncture needle smoothly.

Description

Embryo transplantation device for reaching endometrium through myometrium

Technical Field

The utility model relates to a through endometrium embryo transfer device of myometrium.

Background

In the current in vitro fertilization embryo transfer technology, embryo transfer is to inject the embryo into a proper position of uterine cavity endometrium through an embryo transfer tube via a cervical canal, the existing embryo transfer tube consists of two parts, one part is an outer catheter, the outer catheter passes through an external cervical orifice, and the foremost end of the outer catheter extends into the internal cervical orifice. The second part is an embryo transfer tube. When the embryo transplantation is carried out, the embryo is loaded by the embryo transplantation tube, goes deep into the endometrium transplantation part through the outer catheter, and then is injected to the endometrium part by the injector. When the embryo transplantation tube is used for transplanting a patient with a scar uterus after cesarean section or a patient with a severely bent cervical canal, the existing soft embryo transplantation tube cannot smoothly pass through the cervical canal, so that the transplantation is difficult.

For example, patent application publication No. CN114246659A discloses a double-lumen embryo transfer tube, which comprises a catheter assembly, an introducer tube assembly and a core-covering assembly. The catheter component comprises a catheter seat, a catheter and a supporting tube, wherein the catheter is internally of a double-channel structure, the supporting tube is arranged in a channel with smaller capacity, the channel with larger capacity is an embryo channel, and a stainless steel wire is embedded in the supporting tube. The support tube improves the controllability of the catheter, the ultrasonic visualization is realized by the ultrasonic development ring at the front end of the stainless steel wire and the catheter, and the transplantation condition is optimized

As another patent application with publication number CN113749746A, a embryo transplantation catheter device is disclosed, 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 from the through hole of the tulip head, and the head end of the inner tube is hermetically connected with the head end of the outer tube.

The above-mentioned problems are present in both patent applications.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a reach endometrium embryo transfer device through the myometrium is provided, solve the scar uterus after cutting open the uterus, perhaps the crooked more serious patient of cervical canal, embryo transfer pipe can not pass through the problem of cervical canal smoothly when implementing the transplantation.

The utility model adopts the technical proposal that:

the utility model provides a reach endometrium embryo transfer device through myometrium which characterized in that it includes pjncture needle and sets up the embryo transfer pipe in the pjncture needle, the pjncture needle is the rigidity material.

Furthermore, a rigid inner core is arranged in the puncture needle, the rigid inner core is arranged in the puncture needle during puncture, the rigid inner core is detached during embryo transplantation, and the embryo transplantation catheter penetrates into the puncture needle.

Furthermore, a clamping block is arranged at the bottom of the rigid inner core, a bayonet corresponding to the rigid inner core is arranged at the bottom of the puncture needle, and the top of the rigid inner core protrudes out of the top of the puncture needle after the rigid inner core is installed in place.

Furthermore, a base is arranged at the bottom of the puncture needle, the bayonet comprises a groove formed in the bottom of the base and a baffle arranged in the groove, and the clamping block is matched with the baffle to realize limiting.

Further, the baffle includes diaphragm and riser, the riser is connected with the groove face of recess, and diaphragm fixed mounting is on the riser, and the fixture block cooperation is installed in the space that diaphragm and recess groove face formed.

Furthermore, a limiting clamp is arranged on the inner wall of the transverse plate, and ratchets matched with the limiting clamp are arranged on the corresponding surface of the clamping block.

Furthermore, an ultrasonic reflection surface is arranged on the outer side wall of the top of the puncture needle.

Furthermore, the top of the rigid inner core is in a sharp-prick shape, and the bottom of the rigid inner core is provided with a handle.

Furthermore, the handle of the embryo transfer catheter is provided with scales, and when the tail end of the embryo transfer catheter reaches the tip of the puncture needle, the scales at the handle end of the embryo transfer catheter are flush with the tail end of the handle of the puncture needle.

The utility model discloses an actively the effect does:

the utility model discloses a pjncture needle of rigidity material can utilize the pjncture needle to pass the vaginal wall easily, through the myometrium, makes the most advanced endometrium of pjncture needle reacing, then alright utilize embryo transfer pipe to send endometrium department to pour into the embryo through the puncture needle, accomplishes embryo transfer operation. Solves the problems of diverticulum of uterine scars after cesarean section, or more bending of cervical canal, and great difficulty in embryo transplantation of patients with cervical deformity (double cervix) and cervical adhesion, and can smoothly carry out embryo transplantation.

Meanwhile, in the process that the puncture needle pierces the vaginal wall, the puncture needle is sleeved with the solid rigid inner core, so that human tissues can be effectively prevented from entering the puncture needle, and the tip of the embryo transplantation catheter can be smoothly inserted into the needle point position of the puncture needle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the fixture block of the present invention;

FIG. 3 is a schematic view of the bayonet structure of the present invention;

fig. 4 is a schematic view of the limit card of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, characteristics and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1

The embodiment provides a device for transferring an embryo to an endometrium through an myometrium, which comprises a rigid puncture needle 1 and an embryo transfer catheter 2 arranged in the puncture needle 1, wherein a base 3 is arranged at the bottom of the puncture needle 1, a handle is arranged on one side of the base 3, a scale is arranged at the handle of the embryo transfer catheter 2, and when the tail end of the embryo transfer catheter 2 reaches the tip of the puncture needle 1, the scale at the handle end of the embryo transfer catheter 2 is flush with the tail end of the handle of the puncture needle 1, and the embryo transfer catheter 2 is used for transferring an embryo to the endometrium through the myometrium. The handle end of the embryo transfer catheter 2 can be butted with the mouth of the injector.

In the embodiment, the rigid puncture needle 1 is designed to penetrate through the vaginal wall and pass through the myometrium, so that the tip of the puncture needle reaches the endometrium, and the convenience of embryo transplantation is greatly improved.

Preferably, the ultrasonic reflection surface 12 is arranged on the outer side wall of the top of the puncture needle 1, so that the positioning is clear and accurate, and the accurate positioning of embryo transplantation can be realized.

Example 2

In the present embodiment, a rigid inner core 4 is provided inside the puncture needle 1, the outer diameter of the rigid inner core 4 is adapted to the inner diameter of the puncture needle 1, a latch 5 is provided at the bottom of the rigid inner core 4, a bayonet corresponding to the bayonet is provided on the base 3 of the puncture needle 1, and the rigid inner core 4 is connected to the base 3 of the puncture needle 1 through a snap structure, as shown in fig. 1 and 2. After the rigid core 4 is installed in place, the tip of the rigid core 4 extends beyond the tip of the puncture needle 1.

When the puncture needle 1 is used for puncture, the rigid inner core 4 is attached to the puncture needle 1, and then the rigid inner core 4 is detached, and the embryo transfer catheter 2 is inserted into the puncture needle 1 to perform an embryo transfer operation. Therefore, human tissues cannot enter the needle tube of the puncture needle 1 in the puncture process, so that the subsequent embryo transfer catheter 2 can conveniently penetrate into the puncture needle 1, and convenience is provided for subsequent operation.

The steps in use are as follows: 1. puncture needle 1 punctures to the endometrium through the myometrium under the mediation of B ultrasonic: specifically, the rigid inner core 4 is placed into the puncture needle 1 and is fixed into a combiner through a clamping structure, under the conduction of the vaginal B-ultrasonic, the puncture needle 1 with the rigid inner core 4 easily penetrates through the vaginal wall and passes through an myometrium, the tip of the puncture needle reaches the endometrium, and the surface of the puncture needle is provided with an ultrasonic positioning design, so that the real-time ultrasonic positioning is facilitated. After the needle reaches the endometrial site, the rigid inner core 4 is withdrawn. 2. Transferring embryos with embryo transfer tubes: specifically, the embryo transfer catheter 2 is connected with a syringe, and the negative pressure suction of the syringe is used for transferring the embryo into the embryo transfer catheter. 3. The embryo transfer tube is sent to the endometrium through the puncture needle to inject the embryo. The tip of the embryo transfer tube is sent to the puncture needle tip, and then the embryo is injected into the uterine cavity by the injector.

Example 3

The embodiment is the further restriction to embodiment 2, and in this embodiment, specifically the structure of the joint between rigid inner core 4 and base 3 is defined, as shown in fig. 2-4, the bayonet comprises a groove 7 formed in the bottom of base 3 and a baffle plate arranged in groove 7, the baffle plate comprises a transverse plate 8 and a vertical plate 9, the vertical plate 9 is connected with the groove surface of groove 7, the transverse plate 8 is fixedly mounted on the vertical plate 9, the transverse plate and the vertical plate form an L-shaped structure, and the clamping block 5 is clamped in the space formed by the transverse plate 8 and the groove surface of groove 7.

Preferably, the inner wall of the transverse plate 8 is provided with a limit clamp 10, and the corresponding surface of the fixture block 5 is provided with a ratchet 11 matched with the limit clamp 10.

In this embodiment, the baffle has two, and fixture block 5 corresponds also has two, is equipped with the leader 6 in the bottom of rigidity inner core 4, when using, in the baffle is followed recess 7 screw in with fixture block 5, makes spacing card 10 and the cooperation of ratchet 11, realizes spacingly, prevents that rigidity inner core 4 mistake from dropping. When the rigid inner core 4 needs to be detached, the handle 6 is rotated in the opposite direction, so that the fixture block 5 is separated from the baffle, the rigid inner core can be detached easily, and the use is very convenient and fast.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. A transmyometrial endometrial embryo transfer device is characterized by comprising a puncture needle (1) and an embryo transfer catheter (2) arranged in the puncture needle (1), wherein the puncture needle (1) is made of rigid materials;

a rigid inner core (4) is arranged in the puncture needle (1), the rigid inner core (4) is arranged in the puncture needle (1) during puncture, the rigid inner core (4) is detached during embryo transfer, and the embryo transfer catheter (2) penetrates into the puncture needle (1);

a clamping block (5) is arranged at the bottom of the rigid inner core (4), a bayonet corresponding to the clamping block is arranged at the bottom of the puncture needle (1), and the top of the rigid inner core (4) protrudes out of the top of the puncture needle (1) after the rigid inner core is installed in place;

the bottom of the puncture needle (1) is provided with a base (3), the bayonet comprises a groove (7) formed in the bottom of the base (3) and a baffle arranged in the groove (7), and the clamping block (5) is matched with the baffle to realize limiting.

2. The endometrial embryo transfer device through the myometrium of claim 1, wherein the baffle comprises a transverse plate (8) and a vertical plate (9), the vertical plate (9) is connected with the groove surface of the groove (7), the transverse plate (8) is fixedly installed on the vertical plate (9), and the fixture block (5) is installed in a space formed by the transverse plate (8) and the groove surface of the groove (7) in a matched mode.

3. The endometrial embryo transfer device through the myometrium of claim 2, wherein the inner wall of the transverse plate (8) is provided with a limit clip (10), and the corresponding surface of the clip block (5) is provided with a ratchet (11) matched with the limit clip (10).

4. The device for the transendometrial embryo transfer via the myometrium according to claim 1, wherein the ultrasound reflecting surface (12) is provided on the outer sidewall of the top of the puncture needle (1).

5. A device for the transendometrial embryo transfer via the myometrium according to claim 1, characterised in that the top of the rigid inner core (4) is spike-shaped and at the bottom a handle (6) is provided.

6. The device for embryo transfer through the myometrium to the endometrium according to claim 1, characterized in that the scale is arranged at the handle of the embryo transfer catheter (2), when the end of the embryo transfer catheter (2) reaches the tip of the puncture needle (1), the scale of the handle end of the embryo transfer catheter (2) is flush with the end of the handle of the puncture needle (1).