Transabdominal oocyte pick-up device

Abstract

The utility model provides a kind of oocyte collector through abdominal part, including collection container and with its sealed connection vacuum conduit, collection conduit, the opening of collection container is connected with sealing plug, and the one end of vacuum conduit and collection conduit is respectively arranged in sealing plug and exposes in the inside of collection container, and the one end of collection conduit away from collection container is connected with collection needle, and the one side of vacuum conduit away from collection container is connected with negative pressure source, and the connecting place of conduit and collection needle is equipped with hand protection kit, and the length of collection conduit and flushing conduit in double-channel collection needle is all greater than the length of channel length. The oocyte collector of the scheme is aimed at abdominal part operation, adopts the structure and component suitable for abdominal operation environment, so that operation is more smooth and convenient, reduces the complexity on operation, so that operator can more easily carry out oocyte retrieval operation, to reduce operation difficulty and reduce operation time, with strong clinical application value and practical significance.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a transabdominal oocyte collection device. Background Technology

[0002] It has been more than 40 years since the world's first successful in vitro fertilization-embryo transfer technology. From the earliest laparoscopic egg retrieval, it has gradually developed into the mature transvaginal ultrasound-guided follicle aspiration technique. The transvaginal egg retrieval technology has solved the egg retrieval problem for most patients, which can shorten the operation time and reduce the surgical risk to the lowest level.

[0003] Nevertheless, in practice, a small number of patients still require transabdominal oocyte retrieval for various reasons. Transabdominal oocyte retrieval requires a high level of skill from the operator, and the surgical risk is higher than that of transvaginal oocyte retrieval. Traditional transvaginal oocyte collection devices are designed specifically for vaginal operations, so they are obviously inconvenient to use when directly used for transabdominal oocyte retrieval, and the surgical effect is sometimes greatly reduced.

[0004] To address this issue, it is of great significance to invent a user-friendly and well-designed transabdominal oocyte collection device. Utility Model Content

[0005] To overcome the shortcomings of transvaginal oocyte collection devices, this invention proposes a transabdominal oocyte collection device, comprising a collection container and a vacuum conduit and a collection conduit sealed to the collection container. The opening of the collection container is connected to a sealing plug for sealing the collection container. One end of the vacuum conduit and one end of the collection conduit are respectively inserted through the sealing plug and exposed inside the collection container. A collection needle is connected to the end of the collection conduit away from the collection container, and a negative pressure source is connected to the side of the vacuum conduit away from the collection container.

[0006] The collection needle includes a dual-channel needle with two channels. One channel of the dual-channel needle is connected to the collection conduit, and the other channel is connected to the flushing conduit. A handheld protective kit is fitted on the outside of the connection between the collection conduit, the flushing conduit and the collection needle. The length of the collection conduit and the length of the flushing conduit are both greater than the length of the channel in the dual-channel needle.

[0007] Preferably, the length of the collection needle is in the range of 20-30cm, the length of the collection catheter is in the range of 110-140cm, and the length of the flushing catheter is in the range of 110-140cm.

[0008] Preferably, the surface of the handheld protective kit has an anti-slip textured structure formed by machining, sandblasting, or injection molding.

[0009] Furthermore, the oocyte collector also includes a guide mechanism movably connected to the collection needle, the guide direction of which is parallel to the extension direction of the collection needle, so that the collection needle moves along the guide direction of the guide mechanism based on user adjustments.

[0010] Specifically, the guiding mechanism includes a hollow guide rod, the inner diameter of which is larger than the outer diameter of the sampling needle, so that the sampling needle can be movably disposed inside the hollow guide rod.

[0011] Furthermore, the length of the collection needle is greater than the length of the hollow guide rod, and a first limiting member is provided at the connection between the collection conduit and the collection needle. The length of the first limiting member in at least one direction perpendicular to the extension direction of the collection needle is greater than the inner diameter of the hollow guide rod.

[0012] Specifically, the guiding mechanism includes a guide rail and a mounting base slidably disposed on the guide rail. The mounting base is detachably connected to the acquisition needle so that the acquisition needle can move along the guiding direction of the guide rail together with the mounting base based on the user's adjustment.

[0013] Furthermore, the guiding mechanism also includes a movable locking member for fixing the relative position of the guiding mechanism and the acquisition needle or releasing the fixing of the relative position of the guiding mechanism and the acquisition needle.

[0014] Preferably, the guiding mechanism has a second limiting member on the side away from the connection between the collection conduit and the collection needle.

[0015] Preferably, the length of the vacuum conduit exposed inside the collection container is less than the length of the collection conduit exposed inside the collection container.

[0016] This utility model has at least the following beneficial effects:

[0017] The proposed solution utilizes a specialized transabdominal oocyte collection device, integrated with a vacuum catheter, collection catheter, and collection container. This design allows for greater flexibility during abdominal procedures, reducing equipment complexity and making it particularly suitable for patients who cannot undergo vaginal oocyte retrieval. It provides greater protection for a wider range of patients and expands the applicability of the technology. Compared to traditional transabdominal puncture techniques, this method ensures stable oocyte collection, avoiding risks such as bleeding, infection, or damage caused by improper operation. The external handheld protective kit facilitates the surgical procedure. Overall, the solution is highly efficient, safe, and convenient, effectively addressing the problems encountered with traditional techniques in abdominal oocyte retrieval, improving overall operational effectiveness and patient experience.

[0018] Furthermore, the length settings of the collection needle, collection catheter, and flushing catheter in the proposed solution of this utility model also meet the requirements of transabdominal oocyte retrieval operation, which can achieve ideal operation results and improve the universality of the oocyte collector in performing transabdominal oocyte retrieval. The anti-slip textured structure on the surface of the hand protective kit can optimize the grip stability when using the collector and reduce the risk of misoperation.

[0019] Based on this, the proposed solution can also use a guide mechanism to keep the sampling needle moving smoothly, reducing deviations or unnecessary angle changes, thereby improving the accuracy and stability of the sampling process. At the same time, the guide mechanism, as a component separate from the main body of the sampler, can be reused, allowing users to perform pre-calibration to save preparation time required for each sampling operation. In conjunction with the movable locking component, it helps to improve the operator's control, making the sampling process smoother and more stable. The setting of two limiting components can effectively limit the position of the sampling needle and the guide rod, ensuring safety during the sampling process.

[0020] Therefore, this utility model proposes a transabdominal oocyte retrieval device. The oocyte retrieval device proposed in this utility model is designed for transabdominal operations and adopts a structure and components suitable for the abdominal surgical environment, making the operation smoother and more convenient, reducing the complexity of the operation, and allowing the operator to perform oocyte retrieval more easily, thereby reducing the difficulty of the operation and the operation time, and has strong clinical application value and practical significance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 An example diagram of the overall structure of the transabdominal oocyte collection device provided in Example 1;

[0023] Figure 2 Example diagram of the structure of the collection container;

[0024] Figure 3 This is a partial structural example of a transabdominal oocyte collector in which the collection needle is placed inside a hollow guide rod.

[0025] Figure 4 This is a partial structural example of a transabdominal oocyte collector with the collection needle positioned on the mounting base.

[0026] Figure Labels

[0027] 1-Collection container; 2-Vacuum conduit; 3-Collection conduit; 4-Collection needle; 5-Sealing plug; 6-Flushing conduit; 7-Hand protective kit; 81-Hollow guide rod; 82-Guide slide rail; 83-Mounting base; 84-Movable locking element; 85-Second limit element. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Various embodiments of the present invention will be described more fully below. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0030] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of the present invention, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0031] In various embodiments of this utility model, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0032] The terms used in the various embodiments of this utility model (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this utility model, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0033] It should be noted that, in this utility model, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, those skilled in the art should understand that the terms indicating orientation or positional relationship in the text are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] The terminology used in the various embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this invention pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this invention.

[0036] Example 1

[0037] Please see Figures 1-2This embodiment proposes a transabdominal oocyte collection device, including a collection container 1 and a vacuum conduit 2 and a collection conduit 3 sealed to the collection container 1. The end of the collection conduit 3 away from the collection container 1 is connected to a collection needle 4, and the end of the vacuum conduit 2 away from the collection container 1 is connected to a negative pressure source. The collection needle 4 can puncture the ovary and collect oocytes. The vacuum conduit 2 can provide negative pressure for collecting oocytes through the connected negative pressure source, so that the collection conduit 3 can transfer the oocytes collected by the collection needle 4 to the transfer collection container 1 for storage.

[0038] In this embodiment, the opening of the collection container 1 can be connected to a sealing plug 5 for sealing the collection container 1. The sealing plug 5 can ensure the airtightness of the collection container 1, thereby preventing outside air from entering the collection container 1 and contaminating the oocytes, effectively isolating the external environment, ensuring a sterile environment to avoid external contamination. One end of the vacuum tube 2 and one end of the collection tube 3 are respectively inserted through the sealing plug 5 and exposed inside the collection container 1. Optionally, the collection container 1 may include, but is not limited to, a collection tube or a collection bottle.

[0039] Preferably, the length of the vacuum conduit 2 exposed inside the collection container 1 is less than the length of the collection conduit 3 exposed inside the collection container 1. By designing the vacuum conduit 2 with a shorter exposed length, the stability of the vacuum state can be maintained, ensuring that the negative pressure only plays a role in the channel through which the oocytes are transported by the collection conduit 3, without interfering with the oocytes already collected inside the collection container 1.

[0040] Specifically, the collection needle 4 includes a dual-channel needle with two channels. One channel of the dual-channel needle is connected to the collection catheter 3, which is used to aspirate follicular fluid and oocytes. The other channel is connected to the flushing catheter 6, which is used to flush the channels of the follicular cavity. The length of both the collection catheter 3 and the flushing catheter 4 is greater than the length of the channels in the dual-channel needle.

[0041] Therefore, the transabdominal oocyte retrieval device proposed in this embodiment can perform multiple flushes during oocyte retrieval through the channel in the retrieval needle 4 used for flushing the follicular cavity. The flushing operation helps to loosen the cumulus granulosa cell structure, making it easier for oocytes to detach from the follicular wall, thereby improving the oocyte retrieval rate. In addition, the flushing function of the dual-channel needle can not only increase the number of oocytes retrieved, but also improve the quality of oocytes. Through multiple flushes, oocytes in the follicular fluid can be collected more thoroughly, reducing oocyte damage caused by residual follicular fluid.

[0042] In this embodiment, the length of the collection needle 4 is in the range of 20-30cm, preferably 30cm; the length of the collection catheter 3 is in the range of 110-140cm, preferably 120cm or 130cm; and the length of the flushing catheter 6 is in the range of 110-140cm, preferably 120cm or 130cm. Through the reasonable length design of the collection needle 4, collection catheter 3, and flushing catheter 6, the transabdominal oocyte collection device proposed in this embodiment can create a structure and components suitable for the abdominal surgical environment, making it convenient for users to perform transabdominal oocyte retrieval operations.

[0043] In this embodiment, a hand protective kit 7 is provided on the outside of the connection between the collection catheter 3, the flushing catheter 6 and the collection needle 4. The surface of the hand protective kit 7 has an anti-slip uneven structure formed by machining, sandblasting or injection molding, thereby further optimizing the grip stability of the user when using the collector and reducing the risk of misoperation.

[0044] For example, the surface of the handheld protective kit 7 may include a spiral textured anti-slip textured structure, a striped textured anti-slip textured structure, a grid textured anti-slip textured structure, or a dotted textured anti-slip textured structure.

[0045] By using the handheld protective kit 7, the handheld part of the transabdominal oocyte collection device proposed in this embodiment can effectively increase the friction when in contact with the external environment, thereby improving the anti-slip and wear resistance of the handheld protective kit 7, so that the user can operate the collection needle 4 stably and accurately by holding the handheld protective kit 7, and reduce the risk of slippage or sliding.

[0046] Furthermore, the transabdominal oocyte collector proposed in this embodiment also includes a guide mechanism for movably connecting the collection needle 4, and the guide direction of the guide mechanism for the collection needle 4 is parallel to the extension direction of the collection needle 4, so that the collection needle 4 can move along the guide direction of the guide mechanism based on the user's adjustment.

[0047] Please see Figure 3 In one specific embodiment, the guiding mechanism includes a hollow guide rod 81, the inner diameter of which is larger than the outer diameter of the sampling needle 4, so that the sampling needle 4 can be movably disposed inside the hollow guide rod 81. The user can move the sampling needle 4 inside the hollow guide rod 81 along the guiding direction of the hollow guide rod 81 to any end of the hollow guide rod 81 by holding the hand protective kit 7.

[0048] Specifically, the length of the collection needle 4 is greater than the length of the hollow guide rod 81, and a first limiting member is provided at the connection between the collection conduit 3 and the collection needle 4. The length of the first limiting member in at least one direction perpendicular to the extension direction of the collection needle 4 is greater than the inner diameter of the hollow guide rod 81.

[0049] Therefore, the first limiting member can restrict the further movement of the collection needle 4 after it reaches the limit position, effectively limiting the excessive insertion of the collection needle 4, reducing possible misoperation or improper assembly during operation, thereby improving the safety and stability of the transabdominal oocyte collection device proposed in this embodiment; preferably, the hand-held protective kit 7 set at the connection between the collection catheter 3 and the collection needle 4 can serve as the first limiting member to play a limiting role.

[0050] Please see Figure 4 In another embodiment, the guiding mechanism may further include a guide rail 82 and a mounting base 83 slidably disposed on the guide rail 82. The mounting base 83 is detachably connected to the sampling needle 4. The guide rail 82 can ensure that the sampling needle 4 maintains a stable trajectory during movement, and the mounting base 83 prevents the sampling needle 4 from deviating or becoming unstable. At the same time, the guide rail 82 and the mounting base 83 can also provide support for the sampling needle 4, so that the user will not deviate in the vertical direction when adjusting the sampling needle 4. Thus, the user can move the sampling needle 4 and the mounting base 83 together to either end of the guide rail 82 by holding the hand protective kit 7.

[0051] Preferably, the guide rail 82 has a limiting structure on the side away from the connection between the collection conduit 3 and the collection needle 4, and the cross-section of the mounting base 83 is larger than the cross-section of the limiting structure, so that the limiting structure can limit the mounting base 83, and thus the mounting base 83 can also serve as the first limiting member to limit the collection needle 4.

[0052] With the help of the guide mechanism, when the user operates the transabdominal oocyte collection device, the position of the collection needle 4 can be adjusted more precisely based on the guide mechanism, so that the collection needle 4 can maintain a straight line during the puncture process, accurately align with the follicle in the ovary, and avoid unnecessary damage to the ovarian tissue due to angular deviation, thereby improving the efficiency and success rate of oocyte collection. In addition, the collection process with the guide mechanism can effectively reduce the deviation of the collection needle 4 caused by the user's hand shaking or other external interference, further improving the stability of the operation.

[0053] Furthermore, the guiding mechanism, which is detachable from the main body of the transabdominal oocyte collection device proposed in this embodiment, can be reused multiple times and allows users to perform pre-calibration to save preparation time required for each collection operation, thereby making the collection process smoother and more stable, and reducing the cost of using the collection device and the generation of medical waste.

[0054] Furthermore, the guiding mechanism also includes a movable locking member 84 for fixing the relative position of the hollow guide rod 81 and the collection needle 4 or releasing the fixation of the relative position of the hollow guide rod 81 and the collection needle 4. The movable locking member 84 can fix the hollow guide rod 81 and the collection needle 4 in a certain relative position, thereby ensuring that the relative position of the hollow guide rod 81 and the collection needle 4 does not change during the collection process, improving the stability and safety of the operation process, and avoiding collection errors or damage to oocytes.

[0055] Preferably, the guide mechanism is provided with a second limiting member 85 on the side away from the connection between the collection conduit 3 and the collection needle 4. The second limiting member 85 can limit the excessive movement of the hollow guide rod 81 along its axis during the collection process, which can prevent the collection needle 4 from being misoperated or accidentally damaging the target due to excessive movement of the guide rod, ensuring the safety of the operation process, thereby avoiding the risks caused by the change of position of the guide mechanism.

[0056] When the guiding mechanism includes a guide rail 82 and a mounting base 83, the front end of the guide rail 82 can limit the excessive movement of the guide rail 821 along its axis during the acquisition process, thus playing the same role as the second limiting member 85.

[0057] In summary, this invention provides a transabdominal oocyte retrieval device. The oocyte retrieval device proposed in this invention is designed for transabdominal procedures and employs a structure and components suitable for the abdominal surgical environment, making the operation smoother and more convenient, reducing operational complexity, and allowing the operator to perform oocyte retrieval more easily. This reduces the difficulty of the operation and shortens the surgical time, demonstrating strong clinical application value and practical significance.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transabdominal oocyte collection device, characterized in that, The device includes a collection container and a vacuum conduit and a collection conduit that are sealed to the collection container. The opening of the collection container is connected to a sealing plug for sealing the collection container. One end of the vacuum conduit and one end of the collection conduit are respectively inserted through the sealing plug and exposed inside the collection container. A collection needle is connected to the end of the collection conduit away from the collection container, and a negative pressure source is connected to the side of the vacuum conduit away from the collection container. The collection needle includes a dual-channel needle with two channels. One channel of the dual-channel needle is connected to the collection conduit, and the other channel is connected to the flushing conduit. A handheld protective kit is fitted on the outside of the connection between the collection conduit, the flushing conduit and the collection needle. The length of the collection conduit and the length of the flushing conduit are both greater than the length of the channel in the dual-channel needle.

2. The transabdominal oocyte collection device according to claim 1, characterized in that, The length of the collection needle ranges from 20 to 30 cm, the length of the collection catheter ranges from 110 to 140 cm, and the length of the flushing catheter ranges from 110 to 140 cm.

3. The transabdominal oocyte collection device according to claim 1, characterized in that, The surface of the handheld protective kit has an anti-slip textured structure formed by machining, sandblasting, or injection molding.

4. The transabdominal oocyte collection device according to claim 1, characterized in that, The oocyte collector also includes a guide mechanism movably connected to the collection needle, the guide mechanism being parallel to the extension direction of the collection needle, so that the collection needle moves along the guide direction of the guide mechanism based on user adjustments.

5. The transabdominal oocyte collection device according to claim 4, characterized in that, The guiding mechanism includes a hollow guide rod, the inner diameter of which is larger than the outer diameter of the sampling needle, so that the sampling needle can be movably disposed inside the hollow guide rod.

6. The transabdominal oocyte collection device according to claim 5, characterized in that, The length of the collection needle is greater than the length of the hollow guide rod. A first limiting member is provided at the connection between the collection conduit and the collection needle. The length of the first limiting member in at least one direction perpendicular to the extension direction of the collection needle is greater than the inner diameter of the hollow guide rod.

7. The transabdominal oocyte collection device according to claim 4, characterized in that, The guiding mechanism includes a guide rail and a mounting base slidably disposed on the guide rail. The mounting base is detachably connected to the acquisition needle so that the acquisition needle can move along the guiding direction of the guide rail together with the mounting base based on the user's adjustment.

8. The transabdominal oocyte collection device according to any one of claims 5-7, characterized in that, The guiding mechanism further includes a movable locking member for fixing the relative position of the guiding mechanism and the acquisition needle or releasing the fixing of the relative position of the guiding mechanism and the acquisition needle.

9. The transabdominal oocyte collection device according to any one of claims 5-7, characterized in that, The guiding mechanism has a second limiting member on the side away from the connection between the collection conduit and the collection needle.

10. The transabdominal oocyte collection device according to claim 1, characterized in that, The length of the vacuum conduit exposed inside the collection container is less than the length of the collection conduit exposed inside the collection container.

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