CN113262025A - Visual embryo transplanter for test-tube baby - Google Patents
Visual embryo transplanter for test-tube baby Download PDFInfo
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- CN113262025A CN113262025A CN202110373515.6A CN202110373515A CN113262025A CN 113262025 A CN113262025 A CN 113262025A CN 202110373515 A CN202110373515 A CN 202110373515A CN 113262025 A CN113262025 A CN 113262025A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/425—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation
- A61B17/435—Gynaecological or obstetrical instruments or methods for reproduction or fertilisation for embryo or ova transplantation
Abstract
The invention discloses a visual embryo transplanter for test-tube infants, which comprises an outer tube of a transplantation catheter, an inner tube of the transplantation catheter and an operating mechanism, wherein the operating mechanism is arranged at the end part of the outer tube of the transplantation catheter; the second gear assembly comprises two power input parts and a connector, and the connector reciprocates to enable one of the power input parts to be in transmission connection with a central shaft of the second gear assembly. According to the visual embryo transplanter provided by the invention, the moving speed of the transplanting catheter can be regulated and controlled through the control mechanism, so that the inner tube of the transplanting catheter can move slowly and accurately, a proper embryo transplanting position can be found, and the clinical pregnancy rate is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a visual embryo transplanter for a test-tube infant.
Background
The in vitro fertilization-embryo transfer technology (commonly known as tube baby) is an effective means for treating intractable infertility. Generally, the method comprises the following steps: ovulation promotion, egg taking, in vitro fertilization, embryo transfer and corpus luteum support. In the process of in vitro fertilization-embryo transplantation, gametes form embryos in vitro, and then the embryos are transplanted back into female bodies, so that the embryo transplantation plays a role in starting and stopping in test-tube babies, the embryo transplantation is a key link, and whether the embryos can be transplanted to a proper uterine cavity position is an important factor influencing the embryo transplantation result and the clinical pregnancy rate.
The embryo transplantation catheter comprises an embryo transplantation catheter outer tube, wherein the embryo transplantation catheter outer tube is fixedly connected with an elbow on the outer surface of one end of the embryo transplantation catheter outer tube, an inner tube extending port is formed in the outer surface of one end of the elbow, a bell mouth is fixedly connected to the outer surface of the other end of the embryo transplantation catheter outer tube, and an embryo transplantation catheter inner tube is arranged inside the embryo transplantation catheter outer tube in an inserting mode; the outer surface of the inner tube of the embryo transplantation catheter is provided with an inner tube fixing device. The invention is used, the package of the outer tube of the embryo transfer catheter is opened, then the outer tube of the embryo transfer catheter is extended into the uterine cavity through the vagina of a woman, then the package of the inner tube of the embryo transfer catheter is opened, the embryo is sucked into the inner tube of the embryo transfer catheter through the injector, the inner tube of the embryo transfer catheter filled with the embryo is inserted into the outer tube of the embryo transfer catheter from one side of the bell mouth, the inner tube fixing device is used for limiting the inner tube of the embryo transfer catheter to move in the outer tube of the embryo transfer catheter, and the position of the embryo injected into the uterine cavity is prevented from being changed to influence the pregnancy rate.
In the prior art, in the process of embryo transplantation, generally, the embryo is transported to the cervix through the inner tube of the embryo transplantation catheter, the speed of the inner tube of the embryo transplantation catheter for transporting along the outer tube of the embryo transplantation catheter is generally operated only by the hand feeling and experience of doctors, the requirement on professional literacy of doctors is high, the success rate of transplanting to a proper uterine cavity position is low, meanwhile, due to the fact that the physique of each person is different, the proper position of embryo transplantation is also different, therefore, the embryo transplantation catheter needs to be slowly and accurately moved, the embryo can be transplanted to the proper position, and therefore, the clinical pregnancy rate is improved.
Disclosure of Invention
The invention aims to provide a visual embryo transplanter for test-tube infants, which is used for solving the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a visual embryo transfer device for a test-tube baby comprises an outer transfer catheter tube, an inner transfer catheter tube and a control mechanism, wherein the control mechanism is arranged at the end part of the outer transfer catheter tube, the inner transfer catheter tube is sleeved on the outer transfer catheter tube, the control mechanism comprises a shell, a rotating handle, a first gear assembly, a speed regulating assembly, a second gear assembly and a driving piece are arranged in the shell and are sequentially connected in a transmission mode, and the driving piece is used for driving the inner transfer catheter tube to move;
the second gear assembly comprises two power input parts and a connector, and the connector reciprocates to enable one of the power input parts to be in transmission connection with a central shaft of the second gear assembly.
In the visual embryo transfer device, the first gear assembly comprises an input shaft and a driving gear, and the input shaft receives the driving of the rotating handle to rotate.
The connector comprises a spline hub and a joint sleeve, the spline hub is fixedly sleeved on the central shaft, and the joint sleeve can slide along the spline hub to be connected with any power input part.
According to the visual embryo transplanter, the power input part comprises a slow transmission gear assembly and a connecting part arranged at the output end of the first gear assembly.
According to the visual embryo transplanter, the power input part comprises a slow transmission gear assembly and a fast transmission gear assembly, and the transmission ratios of the fast transmission gear assembly and the slow transmission gear assembly are different.
In the above visual embryo transplanter, the second gear assembly further comprises a synchronizing ring, the synchronizing ring can rotate with the central shaft and receive the driving of the adaptor to slide along the central shaft.
In the visual embryo transfer device, the speed regulating component comprises a driving rod, and the driving rod is connected with the connector through a connecting rod.
Foretell visual embryo transfer ware, the last drive button that is provided with of twist grip, drive button passes through the driving medium in order to right the actuating lever drives.
The visual embryo transfer device further comprises an elastic component, wherein the elastic component is arranged at the end part of the driving rod and is positioned on the movement stroke of the driving button for driving the driving rod to move.
The visual embryo transfer device further comprises a ratchet wheel assembly, wherein the ratchet wheel assembly is arranged at the input end of the input shaft, so that the input shaft can be meshed with the output end of the rotating handle when rotating along the driving direction.
In the above technical solution, the visual embryo transplanter for test-tube infants provided in the embodiments of the present invention includes an outer tube of a transplantation catheter, an inner tube of the transplantation catheter, and a control mechanism, the control mechanism can control the inner tube of the transplantation catheter to move along the direction in which the inner tube is sleeved on the outer tube of the transplantation catheter, a rotating handle, a first gear assembly, a speed regulating assembly, a second gear assembly, and a driving member are sequentially disposed in a casing of the control mechanism, the second gear assembly includes two power input members, one of the power input members can be controlled by the rotating handle and a connector to be in transmission connection with a central shaft of the second gear assembly, so that when an embryo is delivered into a cervix via the inner tube of the transplantation catheter, one of the power input members can be initially in transmission connection with the central shaft of the second gear assembly, so that the driving member drives the inner tube of the transplantation catheter to move at a faster speed, after the transplantation catheter inner tube moves to the cervix, the other power input part is in transmission connection with the central shaft of the second gear assembly, so that the driving part drives the transplantation catheter inner tube to move at a slower speed, the slow and accurate movement of the transplantation catheter inner tube can be realized by combining the rotation of the rotating handle, and a proper embryo transplantation position can be found, thereby improving the clinical pregnancy rate.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural view of an outer tube of a graft catheter according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a visualized embryo transfer device for a test-tube infant according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an operating mechanism according to an embodiment of the present invention;
fig. 4 is a second schematic structural diagram of the operating mechanism according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a control mechanism according to another embodiment of the present invention;
FIG. 6 is a schematic view of a connection of a spring assembly according to yet another embodiment of the present invention;
FIG. 7 is a schematic view of a ratchet assembly according to another embodiment of the present invention.
1. Implanting an outer catheter tube;
2. implanting an inner catheter tube;
3. an operating mechanism; 3.1, a shell;
4. a drive member;
5. a first gear assembly; 5.1, an input shaft; 5.2, driving a gear; 5.3, a second engaging ring gear;
6. a second gear assembly; 6.1, a central shaft; 6.2, a first shaft gear; 6.3, a second shaft gear; 5.4, a first engaging ring gear;
7. a power input; 7.1, a first transmission gear; 7.2, a second transmission gear; 7.3, a third transmission gear; 7.4, a transmission shaft;
8. a connector; 8.1, a splined hub; 8.2, a joint sleeve; 8.3, a synchronous ring;
9. rotating the handle; 9.1, rotating the disc; 9.2, rotating the rod; 9.2.1, driving a button; 9.3, rotating a disc; 9.4, a helical tooth part;
10. a speed regulation component; 10.1, a driving rod; 10.2, connecting rods; 10.3, spring elements; 10.4, a sleeve; 10.5, a slide sheet;
11. a ratchet assembly; 11.1, rotating the sheet; 11.2, elastic pawl.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-7, an embodiment of the present invention provides a visual embryo transplantation device for a test-tube infant, including an outer transplantation catheter tube 1, an inner transplantation catheter tube 2, and an operation mechanism 3, where the operation mechanism 3 is disposed at an end of the outer transplantation catheter tube 1, the outer transplantation catheter tube 1 is sleeved in the inner transplantation catheter tube 2, the operation mechanism 3 includes a housing 3.1, a rotating handle 9, a first gear assembly 5, a speed regulating assembly 10, a second gear assembly 6, and a driving member 4 are disposed in the housing 3.1, and are sequentially connected in a transmission manner, and the driving member 4 is configured to drive the inner transplantation catheter tube 2 to move; the second gear assembly 6 comprises two power input members 7 and a connector 8, and the connector 8 reciprocates to enable one of the power input members 7 to be in transmission connection with the central shaft 6.1 of the second gear assembly 6.
Specifically, one end of the outer tube 1 of the transplantation catheter is provided with an elbow which is adapted to the body structure of a female and is an insertion end during embryo transplantation, the elbow and the outer tube 1 of the transplantation catheter are of an integrally formed structure, the other end of the outer tube 1 of the transplantation catheter is provided with a bell mouth to facilitate the insertion of the inner tube 2 of the transplantation catheter from the bell mouth, the control mechanism 3 is connected at one end of the outer tube 1 of the transplantation catheter, which is provided with the bell mouth, the control mechanism 3 enables the outer tube 1 of the transplantation catheter to enter the outer tube 1 of the transplantation catheter along the bell mouth and can continue to extend into the cervix of a human body along the inside of the outer tube 1 of the transplantation catheter, the control mechanism 3 can control and adjust the moving speed of the inner tube 2 of the transplantation catheter, preferably, the end of the inner tube 2 of the transplantation catheter is provided with a monitoring component, images of the end of the inner tube 2 of the transplantation catheter can be viewed through the monitoring component, thereby realizing accurate operation, the monitoring component may be an image sensor, a lighting device, etc. in the prior art, which is not described herein again.
In this embodiment, the rotating handle 9 is driven by the operator to rotate, the first gear assembly 5 is matched with the rotating handle 9 to receive the drive of the rotating handle 9 to rotate, the second gear assembly 6 comprises a central shaft 6.1, the driving part 4 is matched and connected with the central shaft 6.1, so that the central shaft 6.1 of the second gear assembly 6 can drive the driving member 4 to rotate, the driving member 4 can drive the inner tube 2 of the transplantation catheter to move, i.e. the driving member 4 and the central shaft 6.1, are rotated synchronously, controlling the movement of the inner tube 2 of the graft vessel, optionally, the driving member 4 comprises a friction wheel, the friction wheel can be provided with a positioning structure for attaching the inner tube 2 of the transplantation catheter to the friction wheel, and the friction wheel generates friction force between the friction wheel and the inner tube 2 of the transplantation catheter in the rotation process so as to drive the inner tube 2 of the transplantation catheter to move. Two power input parts 7 are arranged between the first gear assembly 5 and the second gear assembly 6, the two power input parts 7 respectively correspond to the fast rotating power input part and the slow rotating power input part, the fast power input part (namely, the first power input part) and the slow power input part (namely, the second power input part) are matched and connected with the first gear assembly 5, a speed regulating assembly 10 and a connector 8 are also arranged between the two power input parts 7 and the second gear assembly 6, the central shaft 6.1 of the second gear assembly 6 can be controlled and adjusted to be in transmission connection with the fast power input part through the speed regulating assembly 10 and the connector 8, the central shaft 6.1 of the second gear assembly 6 can also be controlled and adjusted to be in transmission connection with the slow power input part, and thus, under the condition that the input rotating speeds of the rotating handles 9 are the same, the central shaft 6.1 is connected with different power input parts 7, so that the rotational speed of the central shaft 6.1 differs, for example: when the input rotating speed of the rotating handle 9 is 16 revolutions per minute, the transmission ratio of the fast power input part is 2:1, and the transmission ratio of the slow power input part is 8:1, when the central shaft 6.1 is in transmission connection with the fast power input part, the rotating speed of the central shaft 6.1 and the driving part 4 is 8 revolutions per minute, and when the central shaft 6.1 is in transmission connection with the slow power input part, the rotating speed of the central shaft 6.1 and the driving part 4 is 2 revolutions per minute. Furthermore, through the arrangement of the fast power input part and the slow power input part, the rotating speed of the driving part 4 can be greater than the input rotating speed of the rotating handle 9, equal to the input rotating speed of the rotating handle 9, or less than the input rotating speed of the rotating handle 9; for example, when the input rotation speed of the rotary handle 9 is 16 rpm, the transmission ratio of the fast power input member is 1:3, and the transmission ratio of the slow power input member is 2:1, when the central shaft 6.1 is in transmission connection with the fast power input member, the rotation speed of the central shaft 6.1 and the driving member 4 is 48 rpm, when the central shaft 6.1 is in transmission connection with the slow power input member, the rotation speed of the central shaft 6.1 and the driving member 4 is 8 rpm, that is, by configuring the transmission ratios of the fast power input member (i.e., the first power input member) and the slow power input member (i.e., the second power input member) and the second gear member 6 engaged therewith, different transmission ratios can be obtained, and further, different rotation speeds and advancing amplitudes of the inner tube 2 of the transplantation catheter can be obtained under the condition that the rotation speed and the amplitudes of the handle are not changed.
In this embodiment, the connector 8 has at least two working positions in a reciprocating motion, the two working positions enable the second gear assembly 6 to be respectively connected with the two power input members 7, the connector 8 can be a joint sleeve 8.2 which is sleeved on the central shaft 6.1, the joint sleeve 8.2 can slide in a reciprocating manner along the central shaft 6.1, and if the two power input members 7 are in spline fit, the two power input members 7 are respectively arranged on a sliding stroke of the joint sleeve 8.2 sliding along the central shaft 6.1. The two power input parts 7 can be both transmission gear components which are meshed with the first gear component 5 and the second gear component 6, the joint sleeve 8.2 can be respectively matched and connected with the two transmission gear components in sequence in the sliding process along the central shaft 6.1, so that the central shaft 6.1 can be selected to be in transmission connection with one of the two transmission gear components, the rotating speeds of the central shaft 6.1 and the driving part 4 are adjusted, the two power input parts 7 can also be transmission gear components and connecting parts which are connected with the output end of the first gear component 5, the transmission gear components are meshed with the first gear component 5 and the second gear component 6, so that the joint sleeve 8.2 can be connected with the connecting parts in the sliding process along the central shaft 6.1, so that the central shaft 6.1 of the second gear component 6 is directly in transmission connection with the first gear component 5, the two shafts are butted, and the joint sleeve 8.2 can also be connected with the transmission gear assembly, so that the central shaft 6.1 is in transmission connection with the transmission gear assembly, and thus the rotation speed of the central shaft 6.1 and the driving piece 4 is adjusted.
The visual embryo transplanter for the test tube baby comprises an outer tube 1 of a transplantation catheter, an inner tube 2 of the transplantation catheter and a control mechanism 3, wherein the control mechanism 3 can control the inner tube 2 of the transplantation catheter to move along the direction of the inner tube 1 of the transplantation catheter, a rotating handle 9, a first gear assembly 5, a speed regulating assembly 10, a second gear assembly 6 and a driving member 4 which are sequentially connected in a transmission manner are arranged in a shell 3.1 of the control mechanism 3, the second gear assembly 6 comprises two power input members 7, one of the power input members 7 can be controlled to be in transmission connection with a central shaft 6.1 of the second gear assembly 6 through the rotating handle 9 and a connector 8, so that when an embryo is conveyed into a cervix through the inner tube 2 of the transplantation catheter, one of the power input members 7 can be initially in transmission connection with the central shaft 6.1 of the second gear assembly 6, and the driving member 4 can drive the inner tube 2 of the transplantation catheter to move at a higher speed, after the inner tube 2 of the transplantation catheter is moved into the cervix, the other power input part 7 is in transmission connection with the central shaft 6.1 of the second gear assembly 6, so that the driving part 4 drives the inner tube 2 of the transplantation catheter to move at a slower speed and is combined with the rotation of the rotating handle 9, the inner tube 2 of the transplantation catheter can be moved slowly and accurately, a proper embryo transplantation position can be found, and the clinical pregnancy rate is improved.
In the embodiment of the present invention, it is preferable that the first gear assembly 5 includes an input shaft 5.1 and a driving gear 5.2, and the input shaft 5.1 receives the driving of the rotating handle 9 to rotate. The rotating handle 9 receives manual driving of an operator to rotate, the input shaft 5.1 and the rotating handle 9 can be directly connected, so that the rotating handle 9 rotates to directly drive the input shaft 5.1 to rotate, the input shaft 5.1 and the rotating handle 9 can also be in transmission connection through a gear structure, a connecting rod structure and the like, the driving gear 5.2 is fixedly connected to one end, far away from the rotating handle 9, of the input shaft 5.1, and the driving gear 5.2 rotates along with the input shaft 5.1.
In the embodiment of the present invention, preferably, the connector 8 includes a spline hub 8.1 and a coupling sleeve 8.2, the spline hub 8.1 is fixedly sleeved on the central shaft 6.1, the coupling sleeve 8.2 can be connected with any power input member 7 along the spline hub 8.1 in a sliding manner, a longitudinal key groove is formed on the outer surface of the spline hub 8.1, a corresponding sliding key groove is also formed on the inner wall of the coupling sleeve 8.2, the sliding key groove is matched with the longitudinal key groove, so that the coupling sleeve 8.2 can keep the central shaft 6.1 rotating synchronously, and the coupling sleeve 8.2 can also slide longitudinally along the central shaft 6.1 while rotating, a connecting part corresponding to the coupling sleeve 8.2 is arranged on the power input member 7, the connecting part can be a connecting gear ring arranged on the side surface of a gear, the same longitudinal key groove is formed on the connecting gear ring, so that the coupling sleeve 8.2 can be connected with one of the power input members 7 in a sliding manner, so that the coupling sleeve 8.2 is in a transmission manner with the corresponding power input member 7, a connection between the power input 7 and the central shaft 6.1 is achieved.
In the embodiment of the present invention, preferably, as shown in fig. 3 and 4, the two power input members 7 are a slow transmission gear assembly and a connecting member provided at the output end of the first gear assembly 5. The slow transmission gear assembly comprises a first transmission gear 7.1 and a second transmission gear 7.2, a first shaft gear 6.2 is arranged on a central shaft 6.1, the first transmission gear 7.1 and the second transmission gear 7.2 are connected through a transmission shaft 7.4, a mounting seat for mounting the transmission shaft 7.4 is arranged inside a shell 3.1, the transmission shaft 7.4 is rotatably mounted on the mounting seat, the first shaft gear 6.2 is rotatably connected to the central shaft 6.1, namely, the central shaft 6.1 rotates but the shaft gear does not rotate, the first transmission gear 7.1 and the second transmission gear are synchronously rotated only by matching with a connector 8, the first transmission gear 7.1 is meshed with the first shaft gear 6.2, the second transmission gear 7.2 is meshed with a driving gear 5.2, a first joint gear ring 6.4 is arranged on one side of the first shaft gear 6.2, a longitudinal key groove which is the same as that on a spline hub 8.1 is arranged on the first joint gear ring 6.4, the connecting piece comprises a second joint gear ring 5.3 arranged on one side of the driving gear 5.2, the second, toothed ring 5.3 is also provided with longitudinal splines so that when the sleeve 8.2 is slidingly connected to the second, toothed ring 5.3 on the drive gear 5.2, the input shaft 5.1 and the central shaft 6.1 are directly connected and driven so that the central shaft 6.1 and the driver 4 rotate at the same speed as the input shaft 5.1, in the path of the turning handle 9, the input shaft 5.1, the second, toothed ring 5.3, the sleeve 8.2, the central shaft 6.1 and the driver 4. In another case, when the engaging sleeve 8.2 slides on the first engaging ring gear 6.4 on the first shaft gear 6.2 to connect, as shown in fig. 3, the input shaft 5.1, the driving gear 5.2, the second transmission gear 7.2, the transmission shaft 7.4, the first transmission gear 7.1, the shaft gear and the central shaft 6.1 are sequentially in transmission connection, so that the central shaft 6.1 can be respectively connected with the shaft gear or the driving gear 5.2 through the sliding of the engaging sleeve 8.2, and the rotation speed of the central shaft 6.1 can be adjusted.
In this embodiment, the connector 8 reciprocates to transmit with a shaft or a gear, and the connection structure is simple, such as a spline structure or a tooth-shaped structure, which is common knowledge and conventional technical means in the field and will not be described again.
In yet another embodiment of the present invention, as shown in fig. 5, the two power input members 7 are a slow speed transmission gear assembly and a fast speed transmission gear assembly, and the transmission ratios of the fast speed transmission gear assembly and the slow speed transmission gear assembly are different. The slow transmission gear assembly comprises a first transmission gear 7.1, the fast transmission gear assembly comprises a third transmission gear 7.3, a first shaft gear 6.2 and a second shaft gear 6.3 are correspondingly arranged on a central shaft 6.1, the first transmission gear 7.1 and the third transmission gear 7.3 are jointly connected with a transmission shaft 7.4, one end of the transmission shaft 7.4 is connected with a second transmission gear 7.2, the second transmission gear 7.2 is meshed with the driving gear 5.2, the first shaft gear 6.2 and the second shaft gear 6.3 are both rotationally connected on the central shaft 6.1, namely under the normal condition, the central shaft 6.1 rotates, the first shaft gear 6.2 and the second shaft gear 6.3 do not rotate, the first transmission gear 7.1 and the first shaft gear 6.2 are normally meshed, the third transmission gear 7.3 and the second shaft gear 6.3 are normally meshed, a first joint gear ring 6.4 is respectively arranged on one side opposite to the spline of the first shaft gear 6.2 and the second shaft gear 6.3, a first joint gear ring 6.4 is provided with a keyway which is the same as a longitudinal spline 8.1 on a hub, the engaging sleeve 8.2 can be connected with the first engaging gear ring 6.4 on the first shaft gear 6.2 by sliding along the spline hub 8.1, and the rotating speed of the central shaft 6.1 and the first shaft gear 6.2 is the same and is slower; the engaging sleeve 8.2 can also be connected with the first engaging gear ring 6.4 on the second shaft gear 6.3 by sliding along the splined hub 8.1, and the central shaft 6.1 and the second shaft gear 6.3 rotate at the same speed and at a higher speed.
In another embodiment of the present invention, it is preferable that the second gear assembly 6 further includes a synchronizing ring 8.3, and the synchronizing ring 8.3 can rotate with the central shaft 6.1 and can slide along the central shaft 6.1 by being driven by the connector. The side parts of the first joint gear ring 6.4 of the first shaft gear 6.2 and the second shaft gear 6.3 are respectively provided with a synchronous ring 8.3, an axial movement gap is formed between the synchronous ring 8.3 and the first joint gear ring 6.4, under normal conditions, the synchronous ring 8.3 rotates around the central shaft 6.1 along with the first joint gear ring 6.4, when the joint sleeve 8.2 moves along the central shaft 6.1 to be connected with the first joint gear ring 6.4, the joint sleeve 8.2 is firstly connected with the synchronous ring 8.3 and presses against the synchronous ring 8.3 to move along the axis of the central shaft 6.1 to be abutted against the first joint gear ring 6.4, so that friction is generated between the synchronous ring 8.3 and the first joint gear ring 6.4, the rotating speed of the first joint gear ring 6.4 is gradually reduced, the joint sleeve 8.2 and the central shaft 6.1 are gradually rotated until the joint sleeve 8.2 is connected with the first joint gear ring 6.4, the central shaft 6.1, the joint sleeve 8.2 and the first joint gear ring 6.4 are synchronously rotated, in this way, the synchronizer ring 8.3 achieves an efficient and smooth locking connection between the coupling sleeve 8.2 and the first ring gear 6.4.
In another embodiment of the present invention, preferably, the speed adjusting assembly 10 includes a driving rod 10.1, the driving rod 10.1 is connected to the connector 8 through a connecting rod 10.2, a connecting sleeve is disposed at an end of the connecting rod 10.2, a circumferential groove is disposed on a joint sleeve 8.2 of the connector 8, the connecting sleeve is sleeved in the circumferential groove, a driving portion capable of driving the driving rod 10.1 is disposed on the housing 3.1, the driving portion may be a button or a lever, the driving rod 10.1 can be driven by the driving portion, the driving rod 10.1 drives the connecting rod 10.2 to drive the joint sleeve 8.2, so that the joint sleeve 8.2 can be connected to the first joint ring gear 6.4 of the first shaft gear 6.2 or the first joint ring gear 6.4 of the second shaft gear 6.3, respectively, and rotation adjustment of the center rod and the driving member 4 is achieved.
In another embodiment of the present invention, it is preferable that the rotating handle 9 is provided with a driving button 9.2.1, and the driving button 9.2.1 drives the driving rod 10.1 through a transmission member. The rotating handle 9 comprises a rotating disk 9.1 and a rotating rod 9.2 arranged on the rotating disk 9.1, the rotating disk 9.1 is connected with the first gear assembly 5 through a driving shaft, a driving button 9.2.1 is arranged on the rotating rod 9.2, the driving button 9.2.1 is positioned at the central position of the rotating disk 9.1, the driving rod 10.1 is sleeved on the driving shaft through a connecting sleeve, the driving button 9.2.1 is pressed down to drive the connecting sleeve and the driving rod 10.1 to move, so that the driving rod 10.1 can drive the engaging sleeve 8.2 to move along the central shaft 6.1, the engaging sleeve 8.2 moves along the central shaft 6.1 to be respectively connected with the first engaging gear ring 6.4 of the first shaft gear 6.2 or the first engaging gear ring 6.4 of the second shaft gear 6.3, so as to realize the adjustment of the moving speed of the inner tube 2 of the transplantation catheter, a locking piece capable of locking the driving button 9.2.1 is arranged in the rotating disk 9.1, so that the engaging sleeve 8.2 can be kept in the engaging state with the first engaging gear ring 6.4 of the first shaft gear ring 6.2, it is also possible to enable the engaging sleeve 8.2 to remain connected with the first engaging ring gear 6.4 of the second shaft gear 6.3.
In a further embodiment of the present invention, it is preferable that the present invention further includes an elastic component, which is disposed at an end of the driving rod 10.1 and located on a movement stroke of the driving button 9.2.1 for driving the driving rod 10.1 to move. The elastic component comprises a spring element 10.3 and a sleeve 10.4, the sleeve 10.4 is fixedly connected inside the shell 3.1, the end part of the driving rod 10.1 is provided with a sliding sheet 10.5, the sliding sheet 10.5 is slidably connected inside the sleeve 10.4, two ends of the spring element 10.3 are respectively fixed on the side walls of the sliding sheet 10.5 and the sleeve 10.4, the spring element 10.3 is arranged, when the spring element 10.3 is in an initial state, an engaging sleeve 8.2 is sleeved on a spline shaft, at the same time, the engaging sleeve 8.2 is not connected with two first engaging gear rings 6.4, namely, the central shaft 6.1 does not receive any driving, at the moment, the insertion of the inner tube 2 of the transplantation catheter is stopped, the driving button 9.2.1 is pulled to enable the engaging sleeve 8.2 to be connected with a second engaging gear ring 5.3 of the second shaft gear 6.3, at the moment, the central shaft 6.1 keeps rotating rapidly, and the spring element 10.3 is stretched; pressing the driving button 9.2.1 can make the engaging sleeve 8.2 connected with the second engaging gear ring 5.3 of the first shaft gear 6.2, at this time, the central shaft 6.1 keeps rotating slowly, the spring element 10.3 is compressed, after the pressure or the pulling force to the driving button 9.2.1 disappears, under the action of the spring element 10.3, the engaging sleeve 8.2 is restored to the initial position, at this time, the engaging sleeve 8.2 is sleeved on the spline shaft, at this time, the engaging sleeve 8.2 is not connected with the two first engaging gear rings 6.4, the movement of the inner tube 2 of the transplantation catheter is stopped, so that the operator can control the movement of the inner tube 2 of the transplantation catheter, and the accurate operation is realized, so that the inner tube 2 of the transplantation catheter can be slowly and accurately moved to the proper position.
In yet another embodiment of the present invention, it is preferable that the present invention further comprises a ratchet assembly 11 provided at an end portion of the input shaft 5.1 so that the input shaft 5.1 is engaged with an output end of the turning handle 9 when it is turned in the driving direction; the ratchet wheel component 11 comprises a rotating sheet 11.1 connected to the end of the input shaft 5.1, a plurality of elastic pawls 11.2 are arranged on the rotating sheet 11.1, one end of a rotating shaft of the rotating handle 9 is connected with a rotating disc 9.3, a circular groove is arranged on the rotating disc 9.3, an inclined tooth part 9.4 is arranged on the inner wall of the circular groove along the circumferential direction, the elastic pawls 11.2 and the inclined tooth part 9.4 on the rotating sheet 11.1 are arranged in front of each other, when the rotating disc 9.3 rotates along the driving direction, the driving direction in the embodiment is the direction for driving the inner tube 2 of the transplantation catheter to move along the outer tube 1 of the transplantation catheter to the inside, and at the moment, the elastic pawls 11.2 and the inclined tooth part 9.4 are meshed with each other (clockwise direction in fig. 6), so that the rotating handle 9 can drive the inner tube 2 of the transplantation catheter to move along the outer tube 1 of the transplantation catheter to the inside. When the rotating shaft moves in the direction opposite to the driving direction (clockwise direction in fig. 6), that is, when the inner tube 2 of the graft catheter is drawn out from the outer tube 1 of the graft catheter, the elastic pawls 11.2 and the helical teeth 9.4 are not engaged, and the inner tube 2 of the graft catheter can be drawn out from the body by manually rotating the driving member 4.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A visual embryo transfer device for a test-tube infant comprises an outer transfer catheter tube, an inner transfer catheter tube and a control mechanism, wherein the control mechanism is arranged at the end part of the outer transfer catheter tube, and the inner transfer catheter tube is sleeved on the outer transfer catheter tube;
the second gear assembly comprises two power input parts and a connector, and the connector reciprocates to enable one of the power input parts to be in transmission connection with a central shaft of the second gear assembly.
2. The visual embryo transfer device of claim 1, wherein the first gear assembly comprises an input shaft and a drive gear, the input shaft receiving the drive of the rotating handle to spin.
3. The visual embryo transfer device of claim 1, wherein the connector comprises a splined hub and a clutch sleeve, the splined hub is fixedly sleeved on the central shaft, and the clutch sleeve can be connected with any one of the power input members in a sliding mode along the splined hub.
4. The visual embryo transfer device of claim 1, wherein the power input comprises a slow drive gear assembly and a coupling disposed at an output of the first gear assembly.
5. The visual embryo transfer device of claim 1, wherein the power input comprises a slow drive gear assembly and a fast drive gear assembly, the gear ratios of the fast drive gear assembly and the slow drive gear assembly being different.
6. The visual embryo transfer device of claim 1, wherein the second gear assembly further comprises a synchronizing ring rotatable with the central shaft and receiving drive from the adaptor to slide along the central shaft.
7. The visual embryo transfer device of claim 1, wherein the timing assembly comprises a drive rod connected to the connector by a connecting rod.
8. The visual embryo transfer device of claim 7, wherein the rotating handle is provided with a drive button that drives the drive rod through a transmission.
9. The visual embryo transfer device of claim 8, further comprising an elastic component disposed at the end of the driving rod and located on the movement stroke of the driving button driving the driving rod to move.
10. The visual embryo transfer device of claim 2, further comprising a ratchet assembly disposed at an input end of the input shaft to enable engagement with an output end of the rotating handle when the input shaft is rotated in a driving direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373515.6A CN113262025A (en) | 2021-04-07 | 2021-04-07 | Visual embryo transplanter for test-tube baby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373515.6A CN113262025A (en) | 2021-04-07 | 2021-04-07 | Visual embryo transplanter for test-tube baby |
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| Publication Number | Publication Date |
|---|---|
| CN113262025A true CN113262025A (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110373515.6A Pending CN113262025A (en) | 2021-04-07 | 2021-04-07 | Visual embryo transplanter for test-tube baby |
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