Embryo transplantation device

Abstract

The utility model provides an embryo transplantation device. The embryo transplantation device comprises a transplantation cylinder, a piston, a mounting cylinder, a motor and a transmission mechanism, one end of the transplantation cylinder is used for being connected with a transplantation catheter. The piston is slidably arranged in the transplanting cylinder. And the piston and the transplanting cylinder are in dynamic seal. One end of the mounting cylinder is detachably connected with the other end of the transplanting cylinder. The motor is arranged at the other end of the mounting cylinder. One end of the transmission mechanism is in transmission connection with the power output end of the motor, and the other end of the transmission mechanism is detachably connected with the piston. The motor drives the piston to slide in the transplantation barrel through the transmission mechanism, and embryo suction, culture solution suction, embryo injection speed control and total culture solution suction amount control in the embryo transplantation process are achieved through the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a kind of embryo transfer apparatus. BACKGROUND

[0002] Embryo transfer is the process of transplanting in vitro cultured embryo into the uterine cavity of mother, the specific process is as follows:

[0003] First, embryo suction is carried out, embryo teacher will adopt three-stage liquid method to suction embryo, i.e.

[0004] Second, embryo is pushed into the uterine cavity through the transfer catheter.

[0005] In the above process, various factors restrict the success rate of embryo transfer, such as the rate of embryo suction and embryo injection, too fast suction and injection rate will lead to instantaneous increase of embryo under external force, which may cause embryo development to stop and embryo cell damage; for example, in the process of embryo suction, it is generally believed that the total amount of suctioned culture solution should be controlled between 10-20 microliters to minimize the impact on the environment in the uterine cavity. At present, it mainly relies on the experience of embryo teacher, so there is a problem that the rate of embryo suction and injection and the total amount of culture solution suction are not easy to control. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiencies in the prior art, the utility model provides an embryo transfer apparatus, so as to solve or at least alleviate one or more of the above problems and other problems in the prior art.

[0007] The utility model provides an embryo transfer apparatus, comprising:

[0008] The transfer barrel is connected to the transfer catheter at one end.

[0009] The piston is slidably arranged in the transfer barrel.

[0010] The mounting barrel is detachably connected to the other end of the transfer barrel at one end.

[0011] The motor is arranged at the other end of the mounting barrel.

[0012] The transmission mechanism is used to drivingly connect the motor and the piston, one end of the transmission mechanism is drivingly connected to the power output end of the motor, and the other end is detachably connected to the piston.

[0013] Preferably, the transmission mechanism comprises:

[0014] a guide block fixedly arranged in the mounting cylinder;

[0015] a transmission pipe slidingly arranged on the guide block, a sliding direction of the transmission pipe being parallel to an axial direction of the mounting cylinder, and one end of the transmission pipe being detachably connected with the piston; and

[0016] a transmission rod, one end of which is threadedly connected with the transmission pipe, and the other end of which is coaxially connected with an output shaft of the motor.

[0017] Preferably, a guide hole is formed in the guide block, a center line of the guide hole being parallel to an axial line of the mounting cylinder, and the transmission pipe is slidingly arranged in the guide hole.

[0018] Preferably, the piston comprises:

[0019] a plug body; and

[0020] a connecting portion in the shape of a rod, one end of which is connected with the plug body, and the other end of which is insertable into the transmission pipe, and an annular clamping groove being formed in the other end of the connecting portion;

[0021] an installation hole being formed in a pipe wall of the transmission pipe;

[0022] the transmission mechanism further comprises a connecting assembly for connecting the transmission pipe with the connecting portion, the connecting assembly comprising:

[0023] a locking pin slidingly arranged in the installation hole, one end of which is in the shape of a hemisphere and is insertable into the annular clamping groove; and

[0024] a pressing member slidingly arranged on an outer wall of the transmission pipe and capable of pressing the locking pin into the annular clamping groove during sliding.

[0025] Preferably, the pressing member comprises:

[0026] a sliding portion slidingly connected with the transmission pipe; and

[0027] a pressing arm, one end of which is connected with the sliding portion, and the other end of which extends along a center line direction of the transmission pipe, an inner side of the pressing arm being provided with an accommodating groove, a groove bottom of the accommodating groove comprising a first abutting surface and a second abutting surface which are parallel to each other, and a third connecting surface connecting the first abutting surface with the second abutting surface, a distance between the first abutting surface and an outer wall of the transmission pipe being smaller than a distance between the second abutting surface and the outer wall of the transmission pipe;

[0028] the other end of the locking pin is located in the accommodating groove;

[0029] When the other end of the locking pin is in contact with the first abutting surface, the one end of the locking pin is located in the annular clamping groove; when the other end of the locking pin is in contact with the second abutting surface, the one end of the locking pin is retracted into the mounting hole.

[0030] Preferably, the connecting assembly further comprises:

[0031] a mounting seat fixedly arranged on the outer wall of the transmission pipe; and

[0032] a resilient rope, two ends of which are connected with the mounting seat and the sliding part respectively.

[0033] Preferably, the other end of the locking pin is provided with a limiting ring, and a diameter of the limiting ring is greater than a hole diameter of the mounting hole.

[0034] Preferably, the one end of the mounting cylinder is threadedly connected with the other end of the implantation cylinder.

[0035] Compared with the prior art, the utility model has the following beneficial effects:

[0036] In the utility model technical field, the motor drives the piston to slide in the implantation cylinder through the transmission mechanism, and the motor is used for realizing speed control of embryo suction, culture solution suction and embryo injection in the embryo implantation process and total amount control of the culture solution suction. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0038] Figure 1 It is a schematic view of the embryo implantation device and the implantation catheter connection in an embodiment of the utility model;

[0039] Figure 2 It is Figure 1 the perspective view of the embryo implantation device;

[0040] Figure 3 It is Figure 2 the internal structure schematic view of the embryo implantation device;

[0041] Figure 4 It is Figure 3 another schematic view of the embryo implantation device;

[0042] Figure 5 It is Figure 4 the enlarged schematic view of A in the embryo implantation device;

[0043] Figure 6 For Figure 5 Amplified schematic view at S;

[0044] Figure 7 For the perspective view of the piston and connecting assembly.

[0045] Reference signs:

[0046] 10, grafting cylinder;

[0047] 20, grafting catheter;

[0048] 30, piston; 31, plug body; 32, connecting part; 321, annular clamping groove;

[0049] 40, mounting cylinder;

[0050] 50, motor;

[0051] 60, transmission mechanism; 61, guide block; 611, guide hole; 62, transmission pipe; 621, mounting hole; 63, transmission rod;

[0052] 70, connecting assembly; 71, locking pin; 72, pressing part; 721, sliding part; 722, pressing arm; 723, accommodating groove; 724, first abutting surface; 725, second abutting surface; 726, third connecting surface; 73, mounting seat; 74, elastic rope; 75, limiting ring. DETAILED DESCRIPTION

[0053] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0054] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the technical personnel in the field to which the present application belongs.

[0055] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0056] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood to indicate or imply relative importance or imply the number of the indicated technical features. In the description of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly contacted through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0059] Referring to Figures 1 to 7 The present embodiment provides an embryo transfer device, which comprises a transfer barrel 10, a piston 30, a mounting barrel 40, a motor 50 and a transmission mechanism 60.

[0060] One end of the transfer barrel 10 is used to be connected with a transfer catheter 20. The piston 30 is slidingly arranged in the transfer barrel 10. The piston 30 and the transfer barrel 10 are dynamically sealed. One end of the mounting barrel 40 is detachably connected with the other end of the transfer barrel 10. The motor 50 is arranged at the other end of the mounting barrel 40. The transmission mechanism 60 is used to drivingly connect the motor 50 with the piston 30, one end of the transmission mechanism 60 is drivingly connected with the power output end of the motor 50, and the other end is detachably connected with the piston 30. The transfer barrel 10 and the piston 30 are disposable products, and in use, the transmission mechanism 60 is connected with the piston 30. The motor 50 is externally connected with a power supply and an MCU, and the MCU drives the piston 30 to slide in the transfer barrel 10 at a controllable speed through the motor 50 through the transmission mechanism 60, thereby controlling the sliding speed and sliding distance of the piston 30 in the transfer barrel 10.

[0061] In the embodiment, the motor 50 drives the piston 30 to slide in the implantation cylinder 10 through the transmission mechanism 60, and the speed control of embryo suction, culture solution suction and embryo injection and the total amount control of culture solution suction in the embryo implantation process are realized by the motor 50.

[0062] In one embodiment, the transmission mechanism 60 comprises a guide block 61, a transmission pipe 62 and a transmission rod 63.

[0063] The guide block 61 is fixedly arranged in the mounting cylinder 40. The transmission pipe 62 is slidingly arranged on the guide block 61, the sliding direction of the transmission pipe 62 is parallel to the axial direction of the mounting cylinder 40, and one end of the transmission pipe 62 is detachably connected with the piston 30. One end of the transmission rod 63 is threadedly connected with the transmission pipe 62, and the other end of the transmission rod 63 is coaxially connected with the output shaft of the motor 50.

[0064] In the embodiment, the motor 50 drives the transmission rod 63 to rotate, and then drives the transmission pipe 62 to slide on the guide block 61, so as to drive the piston 30 connected with the transmission pipe 62 to slide in the implantation cylinder 10.

[0065] In one embodiment, a guide hole 611 is formed in the guide block 61, the center line of the guide hole 611 is parallel to the axis of the mounting cylinder 40, and the transmission pipe 62 is slidingly arranged in the guide hole 611.

[0066] In the embodiment, the guide hole 611 is a square hole, and the transmission pipe 62 is a square pipe, so that the transmission pipe 62 can only slide along the center line direction in the square hole.

[0067] In one embodiment, the piston 30 comprises a plug body 31 and a connecting part 32.

[0068] The connecting part 32 is in the shape of a rod, one end of the connecting part 32 is connected with the plug body 31, the other end of the connecting part 32 can be inserted into the transmission pipe 62, and an annular clamping groove 321 is formed in the other end of the connecting part 32. An installation hole 621 is formed in the wall of the transmission pipe 62.

[0069] The transmission mechanism 60 further comprises a connecting assembly 70 for connecting the transmission pipe 62 with the connecting part 32.

[0070] The connecting assembly 70 comprises a locking pin 71 and a pressing part 72.

[0071] The locking pin 71 is slidingly arranged in the installation hole 621, one end of the locking pin 71 is in the shape of a hemisphere and can be inserted into the annular clamping groove 321. The pressing part 72 is slidingly arranged on the outer wall of the transmission pipe 62, and can press the locking pin 71 into the annular clamping groove 321 in the sliding process.

[0072] In this embodiment, when the connecting part 32 is inserted into the transmission pipe 62, the hemispherical end of the locking pin 71 is pressed against the annular clamping groove 321 on the connecting part 32 by the pressing part 72, so that the connecting part 32 is connected with the transmission pipe 62, and the piston 30 is connected with the transmission pipe 62.

[0073] In one embodiment, the pressing part 72 comprises a sliding part 721 and a pressing arm 722.

[0074] The sliding part 721 is in sliding connection with the transmission pipe 62, and can be annular, slidingly sleeved on the outside of the transmission pipe 62. One end of the pressing arm 722 is connected with the sliding part 721, and the other end of the pressing arm 722 extends along the center line direction of the transmission pipe 62. The inner side of the pressing arm 722 is provided with a receiving groove 723, the groove bottom of the receiving groove 723 comprises a first abutting surface 724 and a second abutting surface 725 which are parallel, and a third connecting surface 726 connecting the first abutting surface 724 and the second abutting surface 725, and the distance between the first abutting surface 724 and the outer wall of the transmission pipe 62 is less than the distance between the second abutting surface 725 and the outer wall of the transmission pipe 62. Figure 5 The pressing arm 722 can be provided with two, and correspondingly, two mounting holes 621 need to be provided on the transmission pipe 62, and two locking pins 71 are also provided correspondingly. The other end of the locking pin 71 is located in the receiving groove 723. When the other end of the locking pin 71 is in contact with the first abutting surface 724, one end of the locking pin 71 is located in the annular clamping groove 321; when the other end of the locking pin 71 is in contact with the second abutting surface 725, one end of the locking pin 71 is retracted into the mounting hole 621. The first abutting surface 724, the third connecting surface 726 and the second abutting surface 725 are arranged in sequence along the center line direction of the transmission pipe 62, and gradually approach the sliding part 721.

[0075] In this embodiment, when it is needed to connect the connecting part 32 with the transmission pipe 62, the connecting part 32 is inserted into the transmission pipe 62, and the pressing part 72 is pushed to move, so that the first abutting surface 724 at the bottom of the receiving groove 723 on the pressing part 72 abuts against the end of the locking pin 71, thereby pressing the hemispherical end of the locking pin 71 against the corresponding annular clamping groove 321. When it is needed to disconnect the connecting part 32 from the transmission pipe 62, the sliding part 721 is pushed, so that the end of the locking pin 71 corresponds to the second abutting surface 725, at this time the connecting part 32 can be pulled out, so that the hemispherical end of the locking pin 71 is pressed, thereby moving the locking pin 71 close to the second abutting surface 725, at this time the connecting part 32 can be taken out from the transmission pipe 62.

[0076] In one embodiment, the connecting assembly 70 further comprises a mounting seat 73 and an elastic rope 74.

[0077] The mounting seat 73 is fixedly arranged on the outer wall of the transmission pipe 62.

[0078] In the embodiment, under the action of the elastic rope 74, the sliding part 721 always has a tendency to move towards the mounting seat 73, so that the pressing part 72 moves close to the mounting seat 73, the first abutting surface 724 abuts against the locking pin 71, so that the hemispherical end of the locking pin 71 abuts against the annular clamping groove 321, and the connecting part 32 and the transmission pipe 62 are stably connected.

[0079] In one embodiment, the other end of the locking pin 71 is provided with a limiting ring 75, and the diameter of the limiting ring 75 is greater than the hole diameter of the mounting hole 621.

[0080] In one embodiment, one end of the mounting cylinder 40 is threadedly connected with the other end of the implantation cylinder 10.

[0081] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail, so as not to obscure the understanding of the specification.

[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the specification of the utility model.

Claims

1. An embryo transfer device, characterized in that, include: The transplant tube (10) has one end for connection to the transplant catheter (20); The piston (30) is slidably disposed inside the transplant tube (10); The mounting tube (40) is detachably connected at one end to the other end of the transplanting tube (10); A motor (50) is disposed at the other end of the mounting cylinder (40); A transmission mechanism (60) is used to drive the motor (50) and the piston (30). One end of the transmission mechanism (60) is driven to the power output end of the motor (50), and the other end is detachably connected to the piston (30).

2. The embryo transfer device as described in claim 1, characterized in that, The transmission mechanism (60) includes: The guide block (61) is fixedly installed inside the mounting cylinder (40); A transmission tube (62) is slidably disposed on the guide block (61), the sliding direction of the transmission tube (62) is parallel to the axial direction of the mounting cylinder (40), and one end of the transmission tube (62) is detachably connected to the piston (30); and The transmission rod (63) is threaded to the transmission tube (62) at one end and coaxially connected to the output shaft of the motor (50) at the other end.

3. An embryo transfer device as described in claim 2, characterized in that, The guide block (61) has a guide hole (611) with the center line of the guide hole (611) being parallel to the axis of the mounting cylinder (40), and the transmission tube (62) is slidably disposed in the guide hole (611).

4. An embryo transfer device as described in claim 3, characterized in that, The piston (30) includes: Plug (31); and The connecting part (32) is rod-shaped, with one end connected to the plug body (31) and the other end inserted into the transmission tube (62). An annular groove (321) is provided on the other end of the connecting part (32). The transmission tube (62) has a through mounting hole (621) on its tube wall; The transmission mechanism (60) further includes a connecting assembly (70) for connecting the transmission tube (62) to the connecting portion (32), the connecting assembly (70) comprising: A locking pin (71) is slidably disposed within the mounting hole (621), one end of which is hemispherical and can be inserted into the annular groove (321); and The pressing member (72) is slidably disposed on the outer wall of the transmission tube (62), and during the sliding process, the locking pin (71) can be pressed into the annular groove (321).

5. An embryo transfer device as described in claim 4, characterized in that, The pressing member (72) includes: The sliding part (721) is slidably connected to the transmission tube (62); and A pressing arm (722) is connected at one end to the sliding part (721) and extends along the center line of the transmission tube (62) at the other end. A receiving groove (723) is provided on the inner side of the pressing arm (722). The bottom of the receiving groove (723) includes a parallel first abutting surface (724) and a second abutting surface (725), and a third connecting surface (726) connecting the first abutting surface (724) and the second abutting surface (725). The distance between the first abutting surface (724) and the outer wall of the transmission tube (62) is less than the distance between the second abutting surface (725) and the outer wall of the transmission tube (62). The other end of the locking pin (71) is located within the receiving groove (723); When the other end of the locking pin (71) contacts the first abutment surface (724), one end of the locking pin (71) is located in the annular groove (321); when the other end of the locking pin (71) contacts the second abutment surface (725), one end of the locking pin (71) retracts into the mounting hole (621).

6. An embryo transfer device as described in claim 5, characterized in that, The connection component (70) further includes: Mounting base (73) is fixedly disposed on the outer wall of the transmission tube (62); and The elastic rope (74) is connected at both ends to the mounting base (73) and the sliding part (721), respectively.

7. An embryo transfer device as described in claim 6, characterized in that, The other end of the locking pin (71) is provided with a limiting ring (75), the diameter of which is larger than the diameter of the mounting hole (621).

8. An embryo transfer device as described in any one of claims 1-7, characterized in that, One end of the mounting cylinder (40) is threadedly connected to the other end of the transplanting cylinder (10).

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