Puncture cannula of medical puncture outfit

Abstract

The utility model provides a puncture cannula of a medical puncture outfit, and relates to the technical field of medical instruments. The puncture cannula comprises a cannula body, a clamping assembly and an adjusting assembly. The clamping assembly is provided with a first annular piece, an annular air bag and a first magnet piece, the first annular piece is arranged in the outer end of the cannula body in a sliding or / and rotating mode and used for allowing surgical instruments or tools to pass through, the annular air bag clamps the passing instruments or tools, and the first magnet piece is arranged on the first annular piece. The adjusting assembly comprises a second annular piece and a second magnet piece, the second annular piece is arranged outside the outer end of the sleeve body in a sliding or / and rotating mode and is concentric with the first annular piece, the second magnet piece is matched with the first magnet piece in a magnetic attraction mode, and the second annular piece drives the first annular piece to move synchronously when moving. And the second annular piece is provided with a locking structure for positioning. According to the puncture cannula, positioning and adjusting of surgical instruments or tools can be achieved, manual operation of independent medical staff is not needed, and manpower resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a puncture cannula for a medical puncture device. Background Technology

[0002] A trocar is a widely used medical device in minimally invasive surgical procedures. It mainly consists of a trocar and a cannula. By puncturing a specific site in the patient's body (such as the abdominal wall or chest wall), a channel is created, allowing various surgical instruments to smoothly enter the body cavity for manipulation. Trocars are characterized by minimal trauma, high precision, and versatility, effectively reducing postoperative pain and infection risks, and promoting patient recovery. They play a crucial role in minimally invasive surgeries such as laparoscopic and thoracoscopic procedures.

[0003] In existing technologies, surgical instruments or tools are introduced into the body cavity through puncture cannulas, but there is no connecting or limiting relationship between the surgical instruments / tools and the puncture cannulas. Therefore, surgical instruments and tools often require a separate assistant for positioning or adjustment, which significantly wastes human resources. For example, in transoral endoscopic thyroid surgery, three endoscopic trocars need to be placed in the oral vestibule to complete the thyroid surgery. The middle trocar inserted into the oral vestibule is used to place the endoscopic lens, and during the procedure, a surgical assistant usually needs to position or adjust it, which undoubtedly increases labor costs and may also affect the efficiency and smoothness of the surgery.

[0004] Given that current surgical instruments and tools require assistants for positioning or adjustment when entering body cavities through puncture cannulas, significant human resources are wasted. In the current climate of increasingly strained medical resources, resolving this issue is both necessary and urgent. This would not only improve surgical efficiency and reduce labor costs but also allow for better allocation of medical resources, providing high-quality medical services to more patients. Utility Model Content

[0005] The purpose of this invention is to provide a puncture cannula for a medical puncture device, which aims to solve the technical problems mentioned in the background art.

[0006] The technical solution of this utility model is implemented as follows:

[0007] This application provides a puncture cannula for a medical puncture device, comprising:

[0008] Sleeve body;

[0009] A clamping assembly includes a first annular member, an annular airbag, and a first magnet. The first annular member is slidably and / or rotatably disposed inside the external end of the cannula body for the passage of surgical instruments or tools. The annular airbag is disposed on the first annular member for clamping surgical instruments or tools passing through the first annular member. The first magnet is disposed on the first annular member.

[0010] The adjustment component includes a second annular member and a second magnet. The second annular member is slidably and / or rotatably disposed outside the outer end of the outer end of the sleeve body and is concentrically disposed with the first annular member. The second magnet is disposed on the second annular member and magnetically engages with the first magnet. When the second annular member slides or / and rotates, it drives the first annular member to move synchronously inside the sleeve body.

[0011] The second annular component is provided with a locking structure for positioning the second annular component after sliding or / and rotating.

[0012] A further technical solution is that the second annular component includes an annular component one and an annular component two. The annular component one is slidably disposed outside the outer end of the outer part of the sleeve body and is concentrically disposed with the first annular component. The annular component two is rotatably sleeved on the outer side of the annular component one.

[0013] The second magnet is disposed on the second annular component.

[0014] A further technical solution is that the locking structure includes a first locking bolt and a second locking bolt. The first locking bolt is disposed on the first annular member and is used for positioning the first annular member after it slides. The second locking bolt is disposed on the first annular member and is used for positioning the second annular member after it rotates.

[0015] A further technical solution is that the inner ring surface of the aforementioned annular component is provided with a guide groove, and the aforementioned sleeve body is provided with a guide slider that is adapted to the aforementioned guide groove.

[0016] A further technical solution is that a first annular groove is provided on the outer side of the aforementioned sleeve body, and the aforementioned guide slider, the aforementioned annular component one, and the aforementioned annular component two are all disposed in the aforementioned first annular groove.

[0017] A further technical solution is that there are multiple first magnets and multiple second magnets, and the number of first magnets and the number of second magnets are equal, with each of the multiple first magnets and multiple of the second magnets being matched one-to-one.

[0018] A further technical solution is that a second annular groove is provided on the inner circumferential side of the first annular component, and the annular airbag is disposed in the second annular groove.

[0019] A further technical solution is that the aforementioned sleeve body is provided with a connecting seat, the aforementioned connecting seat is provided with a hanging rope, and the end of the aforementioned hanging rope away from the aforementioned connecting seat is provided with a hook.

[0020] Compared with the prior art, the technical solution of this utility model has at least the following advantages or beneficial effects:

[0021] The puncture cannula of this application has many advantages in practical use. First, through the ingenious cooperation between the trocar and the cannula body, the cannula body can be smoothly inserted into the body cavity. Subsequently, surgical instruments or tools (such as a camera device) can be inserted through the inner cavity of the cannula body and pass through the first annular component. At this time, the annular balloon plays an important role in clamping and positioning the surgical instruments or tools. If the position of the surgical instruments or tools needs to be adjusted, the second annular component can be operated. When the second annular component slides and / or rotates, it will drive the first annular component to move synchronously, thereby realizing the position adjustment of the surgical instruments and tools. After adjustment, the locking structure can be used for positioning to ensure stability during the operation. In this application, the use of the annular balloon to clamp and position the surgical instruments or tools effectively connects the surgical instruments or tools to the cannula body as one unit. In this way, there is no need for a surgical assistant to position the surgical instruments or tools separately, which greatly saves human resources. Meanwhile, surgeons can quickly adjust the position of surgical instruments or tools by adjusting the second ring, which greatly improves the convenience and efficiency of the operation during surgery, making it more practical and providing a strong guarantee for the smooth progress of the surgery. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a surgical instrument or tool connected to the puncture cannula of a medical puncture device according to an embodiment of the present invention;

[0024] Figure 2 This is a partial schematic diagram of the puncture cannula of a medical puncture device according to an embodiment of the present invention;

[0025] Figure 3 for Figure 1 A magnified view of part A in the image;

[0026] Figure 4This is a cross-sectional view of the puncture cannula of a medical puncture device according to an embodiment of the present invention;

[0027] Figure 5 This is a structural diagram showing the relative positions of the first annular component and the second annular component in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the first annular component in an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the annular component according to an embodiment of the present utility model.

[0030] Icons: 1-Sleeve body, 2-Connecting seat, 3-Hanging rope, 4-Hook, 5-First annular groove, 6-Guide slider, 7-First annular component, 8-Second annular component, 801-Annular component one, 802-Annular component two, 9-First locking bolt, 10-Second locking bolt, 11-Annular airbag, 12-First magnet, 13-Second magnet, 14-Second annular groove, 15-Guide slide groove. Detailed Implementation

[0031] Example

[0032] Please refer to Figures 1-7 This application provides a puncture cannula for a medical puncture device, comprising: a cannula body 1; a clamping assembly including a first annular member 7, an annular airbag 11, and a first magnet 12, wherein the first annular member 7 is slidably and / or rotatably disposed inside the external end of the cannula body 1 for the passage of surgical instruments or tools, the annular airbag 11 is disposed on the first annular member 7 for clamping surgical instruments or tools passing through the first annular member 7, and the first magnet 12 is disposed on the first annular member 7; and an adjusting assembly including a second annular member 12. The second annular member 8 is slidably and / or rotatably disposed on the outside of the outer end of the sleeve body 1 and concentrically disposed with the first annular member 7. The second magnet 13 is disposed on the second annular member 8 and magnetically engages with the first magnet 12. When the second annular member 8 slides or / and rotates, it drives the first annular member 7 to move synchronously inside the sleeve body 1. The second annular member 8 is provided with a locking structure for positioning after sliding or / and rotating.

[0033] The puncture cannula of this application has many advantages in practical use. First, through the ingenious cooperation between the puncture device and the cannula body 1, the cannula body 1 can be smoothly inserted into the body cavity. Subsequently, surgical instruments or tools (such as a camera device) can be inserted through the inner cavity of the cannula body 1 and pass through the first annular member 7. At this time, the annular balloon 11 plays an important role in clamping and positioning the surgical instruments or tools. If the position of the surgical instruments or tools needs to be adjusted, the second annular member 8 can be operated. When the second annular member 8 slides and / or rotates, it will drive the first annular member 7 to move synchronously, thereby realizing the position adjustment of the surgical instruments and tools. After adjustment, the locking structure can be used for positioning to ensure stability during the operation. In this application, the annular balloon 11 is used to clamp and position the surgical instruments or tools, effectively connecting the surgical instruments or tools to the cannula body 1 as one unit. In this way, there is no need for a surgical assistant to position the surgical instruments or tools separately, which greatly saves human resources. Meanwhile, surgeons can quickly adjust the position of surgical instruments or tools by adjusting the second ring component 8, which greatly improves the convenience and efficiency of the operation during surgery, making it more practical and providing a strong guarantee for the smooth progress of the surgery.

[0034] In some embodiments of the present invention, the second annular member 8 includes annular member 1 801 and annular member 2 802. Annular member 1 801 is slidably disposed outside the outer end of the outer end of the sleeve body 1 and is concentrically disposed with the first annular member 7. Annular member 2 802 is rotatably sleeved on the outer side of annular member 1 801.

[0035] The second magnet 13 is disposed on the annular part 802.

[0036] In the above embodiments, when the second annular member 802 rotates relative to the first annular member 801, the magnetic attraction between the first magnet 12 and the second magnet 13 drives the first annular member 7 to rotate, thereby achieving rotational adjustment of the surgical instrument or tool. When the second annular member 802 slides on the cannula body 1, the magnetic attraction between the first magnet 12 and the second magnet 13 also drives the first annular member 7 to slide, thereby achieving sliding adjustment of the surgical instrument or tool.

[0037] It is worth noting that the sliding direction of the first annular member 7 and the sliding direction of the cannula body 1 are both along the axis of the cannula body 1. Furthermore, in this application, the external end refers to the end of the puncture cannula away from its puncture point.

[0038] In some embodiments of this utility model, the locking structure includes a first locking bolt 9 and a second locking bolt 10. The first locking bolt 9 is disposed on the first annular member 801 and is used for positioning the first annular member 801 after sliding. The second locking bolt 10 is disposed on the first annular member 801 and is used for positioning the second annular member 802 after rotating.

[0039] In the above embodiment, the first locking bolt 9 is threadedly engaged with the annular member 801, with its threaded portion passing through the annular member 801 and abutting against the sleeve body 1, for positioning the annular member 801 after it slides relative to the sleeve body 1. The second locking bolt 10 is also threadedly engaged with the annular member 801, with its threaded portion passing through the annular member 801 and abutting against the second annular member 802, for positioning the second annular member 802 after it rotates relative to the annular member 801. This design ensures stable fixation after adjustment, improving the reliability and practicality of the device.

[0040] In some embodiments of this utility model, the inner ring surface of the above-mentioned annular component 801 is provided with a guide groove 15, and the above-mentioned sleeve body 1 is provided with a guide slider 6 adapted to the above-mentioned guide groove 15.

[0041] In the above embodiments, the sliding engagement between the guide slider 6 and the guide groove 15 allows the annular component 801 to slide directionally on the sleeve body 1. Specifically, the multiple sliding structures formed by the guide slider 6 and the guide groove 15 greatly improve the stability of the annular component 801 and the sleeve body 1 when they slide relative to each other, ensuring the reliability of the device during use.

[0042] In some embodiments of this utility model, a first annular groove 5 is provided on the outer side of the sleeve body 1, and the guide slider 6, the first annular component 801 and the second annular component 802 are all disposed in the first annular groove 5.

[0043] In the above embodiment, the guide slider 6, the first annular component 801, and the second annular component 802 are integrated within the first annular groove 5. This design effectively reduces the size of the device, making it more convenient to use, without occupying too much space, improving the practicality of the device, and bringing greater convenience to medical operations.

[0044] In some embodiments of this utility model, the number of the first magnet 12 and the second magnet 13 are both multiple, and the number of the first magnet 12 and the second magnet 13 are equal, with each of the multiple first magnet 12 and the multiple second magnet 13 being matched one-to-one.

[0045] In the above embodiments, the cooperative structure of multiple sets of first magnets 12 and second magnets 13 plays an important role. It improves the stability of the cooperative connection between the first annular member 7 and the second annular member 8. Specifically, multiple first magnets 12 are arranged circumferentially along the outer annular surface of the first annular member 7, and any one of the first magnets 12 is embedded in the first annular member 7. Similarly, multiple second magnets 13 are arranged circumferentially along the inner annular surface of the second annular member 802, and any one of the second magnets 13 is also embedded in the second annular member 802. This design makes the connection between the two annular members more robust and reliable.

[0046] In some embodiments of this utility model, the inner circumferential side of the first annular member 7 is provided with a second annular groove 14, and the annular airbag 11 is disposed in the second annular groove 14.

[0047] In the above embodiment, the annular airbag 11 is disposed along the circumferential direction of the second annular groove 14 and integrated therein. This design improves the stability of the annular airbag 11 during installation, ensuring that it will not easily shift during use; on the other hand, it makes the combined structure of the first annular member 7 and the annular airbag 11 smaller in size, making it easier to use in medical operations.

[0048] In some embodiments of this utility model, the sleeve body 1 is provided with a connecting seat 2, the connecting seat 2 is provided with a hanging rope 3, and the end of the hanging rope 3 away from the connecting seat 2 is provided with a hook 4.

[0049] In the above embodiments, the cooperative design of the hook 4, the hanging rope 3 and the connecting seat 2 can position this application on the external frame, thereby further improving the stability of this application in actual use and enhancing its practicality.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A puncture cannula for a medical puncture device, characterized in that, include: Sleeve body (1); The clamping assembly includes a first annular member (7), an annular airbag (11), and a first magnet (12). The first annular member (7) is slidably and / or rotatably disposed inside the external end of the cannula body (1) for the passage of surgical instruments or tools. The annular airbag (11) is disposed on the first annular member (7) for clamping surgical instruments or tools passing through the first annular member (7). The first magnet (12) is disposed on the first annular member (7). as well as The adjustment component includes a second annular member (8) and a second magnet (13). The second annular member (8) is slidably and / or rotatably disposed on the outside of the outer end of the sleeve body (1) and is concentrically disposed with the first annular member (7). The second magnet (13) is disposed on the second annular member (8) and magnetically engages with the first magnet (12). When the second annular member (8) slides or / and rotates, it drives the first annular member (7) to move synchronously inside the sleeve body (1). The second annular member (8) is provided with a locking structure for positioning the second annular member (8) after sliding or / and rotating.

2. The puncture cannula of a medical puncture device according to claim 1, characterized in that, The second annular component (8) includes annular component one (801) and annular component two (802). Annular component one (801) is slidably disposed outside the outer end of the sleeve body (1) and is concentrically disposed with the first annular component (7). Annular component two (802) is rotatably sleeved on the outside of annular component one (801). The second magnet (13) is disposed on the second annular component (802).

3. The puncture cannula of a medical puncture device according to claim 2, characterized in that, The locking structure includes a first locking bolt (9) and a second locking bolt (10). The first locking bolt (9) is disposed on the first annular part (801) and is used for positioning the first annular part (801) after it slides. The second locking bolt (10) is disposed on the first annular part (801) and is used for positioning the second annular part (802) after it rotates.

4. The puncture cannula of a medical puncture device according to claim 3, characterized in that, The inner ring surface of the annular component (801) is provided with a guide groove (15), and the sleeve body (1) is provided with a guide slider (6) adapted to the guide groove (15).

5. The puncture cannula of a medical puncture device according to claim 4, characterized in that, The outer side of the sleeve body (1) is provided with a first annular groove (5), and the guide slider (6), the first annular component (801) and the second annular component (802) are all provided in the first annular groove (5).

6. The puncture cannula of a medical puncture device according to any one of claims 1-5, characterized in that, There are multiple first magnets (12) and multiple second magnets (13), and the number of first magnets (12) and the number of second magnets (13) are equal. The multiple first magnets (12) and the multiple second magnets (13) are matched one by one.

7. The puncture cannula of a medical puncture device according to claim 1, characterized in that, The first annular member (7) has a second annular groove (14) circumferentially arranged on its inner side, and the annular airbag (11) is disposed in the second annular groove (14).

8. The puncture cannula of a medical puncture device according to claim 1, characterized in that, The sleeve body (1) is provided with a connecting seat (2), the connecting seat (2) is provided with a hanging rope (3), and the end of the hanging rope (3) away from the connecting seat (2) is provided with a hook (4).

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