Intraoperative muscle retraction device

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a kind of intraoperative muscle traction device, it includes fixed part, longitudinal adjusting part, transverse adjusting part and traction part;The one end of longitudinal adjusting part is fixedly connected with fixed part, and the other end is slidably connected with transverse adjusting part;The one end of transverse adjusting part away from longitudinal adjusting part is connected with traction part;The traction part includes connecting piece and puller;The one end of puller is detachably connected with connecting piece, and the other end is fixedly connected with pull hook;It further includes angle adjusting part;The one end of angle adjusting part is hinged with transverse adjusting part, and the other end is hinged with connecting piece.Affirmative effect: it is designed for transoral vestibular thyroid surgery, and is highly matched with surgical approach, operating space and patient position, so it has strong clinical adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an intraoperative muscle traction device. Background Technology

[0002] Transoral vestibular thyroid surgery, a commonly used minimally invasive thyroid procedure, offers advantages such as no external incision, minimal trauma, and high postoperative aesthetics. It has been widely applied in the surgical treatment of benign thyroid diseases and early-stage thyroid cancer. This procedure requires establishing an operating channel through the oral vestibular approach. During the operation, continuous and stable traction of the lower lip, chin soft tissue, and anterior neck muscles is necessary to create a safe and effective operating space and fully expose the surgical field, which is a core prerequisite for ensuring the smooth progress of the surgery.

[0003] Most existing fixed retractors used in clinical practice are designed for open surgeries, are bulky and rigid, and cannot adapt to the narrow and deep operating space of the transvesical approach. Therefore, intraoperative tissue traction and surgical field exposure mainly rely on manual operation and conventional instruments. However, manual operation has poor stability, affecting the exposure of the surgical field: intraoperative tissue traction is mainly accomplished by an assistant holding a regular retractor, and prolonged continuous operation can easily lead to hand fatigue in the assistant, resulting in uneven traction force, positional deviation, and other problems, making it impossible to maintain stable surgical field exposure and interfering with the surgeon's operational continuity. Furthermore, manual operation consumes manpower, and when the surgical team is short-staffed, there may be insufficient personnel for traction, leading to inadequate tissue traction and insufficient exposure of the operating space, significantly increasing the difficulty and risk of the operation. Utility Model Content

[0004] To address the aforementioned issues, this application discloses an intraoperative muscle traction device.

[0005] An intraoperative muscle traction device includes a fixation part, a longitudinal adjustment part, a transverse adjustment part, and a traction part; one end of the longitudinal adjustment part is fixedly connected to the fixation part, and the other end is slidably connected to the transverse adjustment part; the end of the transverse adjustment part away from the longitudinal adjustment part is connected to the traction part; the traction part includes a connector and a pulling member; one end of the pulling member is detachably connected to the connector, and the other end is fixedly connected to a pulling hook; it also includes an angle adjustment part; one end of the angle adjustment part is hinged to the transverse adjustment part, and the other end is hinged to the connector.

[0006] Furthermore, one end of the connector is hinged to the angle adjustment part, and the other end is provided with a positioning block and a positioning element; the positioning blocks are symmetrically arranged on the side wall of the connector; the side wall of the positioning block is provided with a groove; the groove is detachably connected to the pulling element; the positioning element protrudes from the side wall of the connector; the positioning element is detachably connected to the pulling element.

[0007] Furthermore, the positioning component includes a limiting block and a connecting block; one end of the connecting block is fixedly connected to the limiting block, and the other end is fixedly connected to the connecting component; the cross-sectional area of ​​the limiting block is larger than the cross-sectional area of ​​the connecting block.

[0008] Furthermore, the end of the pulling member away from the pulling hook is provided with a limiting groove and a mounting hole; the limiting groove and the mounting hole are connected; the width of the mounting hole is greater than the width of the limiting groove.

[0009] Furthermore, the fixing part includes a fixing bracket, a limiting plate, and a limiting member; the limiting plate slides inside the fixing bracket; one end of the limiting member passes through the fixing bracket and is connected to the limiting plate.

[0010] Furthermore, the longitudinal adjustment part includes a first longitudinal arm, a second longitudinal arm, and a longitudinal positioning member; one end of the first longitudinal arm is fixedly connected to the fixing part, and the other end is slidably connected to the second longitudinal arm; one end of the longitudinal positioning member passes through the first longitudinal arm and abuts against the second longitudinal arm.

[0011] Furthermore, the lateral adjustment part includes a lateral positioning member and a lateral arm; one end of the lateral arm is slidably connected to the longitudinal adjustment part, and the other end is hinged to the angle adjustment part; one end of the lateral positioning member passes through the longitudinal adjustment part and abuts against the lateral arm.

[0012] Furthermore, a rotating frame is fixedly connected to the end of the transverse arm away from the longitudinal adjustment part; the rotating frame is fixedly connected to the angle adjustment part.

[0013] Furthermore, a first rotating bracket and a second rotating bracket are fixedly connected to both ends of the angle adjustment part; the first rotating bracket is hinged to the lateral adjustment part; the second rotating bracket is hinged to the connecting piece; a first angle positioning element is provided on the first rotating bracket; and a second angle positioning element is provided on the second rotating bracket.

[0014] Furthermore, the first angle positioning component includes a first bolt and a first nut; the first bolt passes through the first rotating bracket and is connected to the first nut; the second angle positioning component includes a second bolt and a second nut; the second bolt passes through the second rotating bracket and is connected to the second nut.

[0015] The beneficial effects of this utility model are:

[0016] Designed for transoral vestibular thyroid surgery, it is highly compatible with the surgical approach, operating space, and patient position, and has strong clinical adaptability.

[0017] The fixed structure enables hand-held traction, fundamentally solving problems such as assistant fatigue, manpower shortage, and unstable traction force. Through multi-degree-of-freedom adjustment, it achieves multi-dimensional precise fine-tuning and reliable locking, ensuring stable traction during surgery without shaking or displacement, thus guaranteeing exposure of the surgical field.

[0018] The device has a compact structure and a slender cantilever, which does not obstruct the laparoscopic view or interfere with the surgeon's operation. It is also quick to install and disassemble and securely fixed, making it suitable for rapid use in clinical operating rooms. Attached Figure Description

[0019] Figure 1 A front view of an intraoperative muscle traction device that implements this utility model;

[0020] Figure 2 A perspective view of an intraoperative muscle traction device for implementing this utility model;

[0021] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0022] Figure 4 A perspective view of a connector that implements this utility model;

[0023] Figure 5 A perspective view of a tensioning component that implements this utility model;

[0024] Figure 6 A front view of a fixing part that implements this utility model;

[0025] In the diagram, 1 is the fixing part; 2 is the longitudinal adjustment part; 3 is the lateral adjustment part; 4 is the angle adjustment part; 5 is the traction part; 11 is the fixing bracket; 12 is the limiting plate; 13 is the limiting component; 21 is the first longitudinal arm; 22 is the second longitudinal arm; 23 is the longitudinal positioning component; 24 is the lateral positioning component; 31 is the lateral arm; 32 is the rotating frame; 41 is the first rotating bracket; 42 is the second rotating bracket; 43 is the second angle positioning component; 44 is the first angle positioning component; 51 is the connecting component; 52 is the pulling component; 511 is the positioning block; 512 is the connecting block; 513 is the limiting block; 521 is the limiting groove; 522 is the mounting hole; and 523 is the pulling hook. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0028] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0029] In this document, it should be understood that the terms "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this document, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figure 1-6 The intraoperative muscle traction device shown is designed for transoral vestibular thyroid surgery and is highly compatible with the surgical approach, operating space, and patient position, making it clinically adaptable.

[0032] It includes a fixing part 1, a longitudinal adjustment part 2, a lateral adjustment part 3, and a traction part 5; one end of the longitudinal adjustment part 2 is fixedly connected to the fixing part 1, and the other end is slidably connected to the lateral adjustment part 3; the end of the lateral adjustment part 3 away from the longitudinal adjustment part 2 is connected to the traction part 5; the traction part 5 includes a connecting member 51 and a pulling member 52; one end of the pulling member 52 is detachably connected to the connecting member 51, and the other end is fixedly connected to a pulling hook 523; it also includes an angle adjustment part 4; one end of the angle adjustment part 4 is hinged to the lateral adjustment part 3, and the other end is hinged to the connecting member 51.

[0033] Employing a fixable structure, it achieves hand-free traction, fundamentally solving problems such as assistant fatigue, manpower shortage, and unstable traction force. Through multi-degree-of-freedom adjustment, it enables precise micro-adjustment and reliable locking, ensuring stable, stable, and non-displaced traction during surgery, guaranteeing adequate surgical field exposure. The device is compact with a slender cantilever, does not obstruct the laparoscopic view, and does not interfere with the surgeon's operation. It is also quick to install and disassemble, and securely fixed, making it suitable for rapid use in clinical operating rooms.

[0034] One end of the connector 51 is hinged to the angle adjustment part 4, and the other end is provided with a positioning block 511 and a positioning element; the positioning blocks 511 are symmetrically arranged on the side wall of the connector 51. The side wall of the positioning block 511 is provided with a groove; the groove is detachably connected to the pulling member 52. The purpose of this design is to restrict the movement direction of the pulling member 52, so that the pulling member 52 can only slide along the groove.

[0035] The positioning element protrudes from the side wall of the connector 51; the positioning element and the traction element 52 are detachably connected. When the positioning element and the traction element 52 are joined, the positioning element prevents the traction element 52 from moving away from the lateral adjustment part 3, and the traction element 52 moves away from the lateral adjustment part 3 under the traction of the patient's tissue. The positioning element and the positioning block 511 lock the position of the traction element 52 to prevent the traction element 52 from being misaligned.

[0036] The positioning component includes a positioning block 511 and a connecting block 512; one end of the connecting block 512 is fixedly connected to the positioning block 511, and the other end is fixedly connected to the connecting component 512; the cross-sectional area of ​​the positioning block 511 is larger than the cross-sectional area of ​​the connecting block 512. The pulling component 52 has a limiting groove 521 and a mounting hole 522 at its end away from the pulling hook 523; the limiting groove 521 is located on the side of the mounting hole 522 away from the pulling hook 523. The limiting groove 521 communicates with the mounting hole 522; the width of the mounting hole 522 is larger than the width of the limiting groove 521. The width of the positioning block 511 is larger than the width of the limiting groove 521. The width of the positioning block 511 is smaller than the width of the mounting hole 522. In use, the positioning block 511 and the connecting block 512 are inserted into the mounting hole 522, and then the pulling member 52 is driven to move away from the lateral adjustment part 3 until the connecting block 512 and the limiting groove 521 abut against the side away from the mounting hole 522. At this time, the positioning block 511 cannot pass through the limiting groove 521, thus preventing the pulling member 52 from disengaging from the positioning member.

[0037] In some embodiments of this application, the traction hook 523 has an arc-shaped blunt tip design to conform to the shape of the chin and neck muscles. The traction hook 523 has a smooth surface and rounded edges, without cutting or compressing tissue. The traction hook 523 is made of flexible material or a semi-flexible structure to reduce local pressure and minimize postoperative discomfort.

[0038] like Figure 1-3As shown, the longitudinal adjustment part 2 includes a first longitudinal arm 21, a second longitudinal arm 22, and a longitudinal positioning member 23. The first longitudinal arm 21 is a tubular structure. One end of the first longitudinal arm 21 is fixedly connected to the fixing part 1, and the other end is slidably connected to the second longitudinal arm 22. One end of the longitudinal positioning member 23 passes through the first longitudinal arm 21 and abuts against the second longitudinal arm 22. The longitudinal positioning member 23 is threadedly connected to the first longitudinal arm 21. Tightening the longitudinal positioning member 23 presses the second longitudinal arm 22 against the inner wall of the first longitudinal arm 21, thereby increasing the friction between the first longitudinal arm 21 and the second longitudinal arm 22. By locking the position of the first longitudinal arm 21 and the second longitudinal arm 22 through friction, the total length of the longitudinal adjustment part 2 is limited.

[0039] like Figure 1-3 As shown, the lateral adjustment part 3 includes a lateral positioning member 24 and a lateral arm 31; one end of the lateral arm 31 is slidably connected to the longitudinal adjustment part 2, and the other end is hinged to the angle adjustment part 4; one end of the lateral positioning member 24 passes through the second longitudinal arm 22 and abuts against the lateral arm 31. Tightening the lateral positioning member 24 presses the lateral arm 31 against the inner wall of the second longitudinal arm 22, thereby increasing the friction between the lateral arm 31 and the second longitudinal arm 22. By locking the position of the lateral arm 31 and the second longitudinal arm 22 through friction, the position of the lateral adjustment part 3 is restricted.

[0040] Specifically, a rotating frame 32 is fixedly connected to the end of the transverse arm 31 away from the longitudinal adjustment part 2. A first rotating bracket 41 and a second rotating bracket 42 are fixedly connected to both ends of the angle adjustment part 4, respectively; the first rotating bracket 41 is hinged to the rotating frame 32; the second rotating bracket 42 is hinged to the connecting member 51; a first angle positioning member 44 is provided on the first rotating bracket 41; a second angle positioning member 43 is provided on the second rotating bracket 42. The first angle positioning member 44 limits the angle between the transverse arm 31 and the angle adjustment part 4. The second angle positioning member 43 limits the angle between the angle adjustment part 4 and the connecting member 51.

[0041] Specifically, the first angle positioning component 44 includes a first bolt and a first nut; the first bolt passes through the first rotating bracket 41 and is threadedly connected to the first nut; the second angle positioning component 43 includes a second bolt and a second nut; the second bolt passes through the second rotating bracket 42 and is threadedly connected to the second nut.

[0042] like Figure 6 As shown, the fixing part 1 includes a fixing bracket 11, a limiting plate 12, and a limiting member 13; the limiting plate 12 slides inside the fixing bracket 11; one end of the limiting member 13 passes through the fixing bracket 11 and is connected to the limiting plate 12. The limiting member 13 is threadedly connected to the fixing bracket 11.

[0043] Specifically, the fixation bracket 11 has a C-shaped structure and can be clamped and fixed to the edge of the operating table, head frame, or anesthesia frame. The inner wall of the fixation bracket 11 and the side of the limiting plate 12 away from the limiting member 13 are provided with anti-slip pads.

[0044] The above are merely specific embodiments of this application. Under the guidance of the above teachings, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this application, and the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An intraoperative muscle traction device, comprising a fixing part (1), a longitudinal adjusting part (2), a transverse adjusting part (3) and a traction part (5); one end of the longitudinal adjusting part (2) is fixedly connected with the fixing part (1), and the other end is slidably connected with the transverse adjusting part (3); one end of the transverse adjusting part (3) away from the longitudinal adjusting part (2) is connected with the traction part (5); characterized in that, The traction part (5) includes a connector (51) and a pulling part (52); one end of the pulling part (52) is detachably connected to the connector (51), and the other end is fixedly connected to a pulling hook (523); it also includes an angle adjustment part (4); one end of the angle adjustment part (4) is hinged to the lateral adjustment part (3), and the other end is hinged to the connector (51).

2. The intraoperative muscle traction device according to claim 1, characterized in that, One end of the connector (51) is hinged to the angle adjustment part (4), and the other end is provided with a positioning block (511) and a positioning element; the positioning block (511) is symmetrically arranged on the side wall of the connector (51); the side wall of the positioning block (511) is provided with a groove; the groove is detachably connected to the pulling element (52); the positioning element protrudes from the side wall of the connector (51); the positioning element is detachably connected to the pulling element (52).

3. The intraoperative muscle traction device according to claim 2, characterized in that, The positioning component includes a limiting block (513) and a connecting block (512); one end of the connecting block (512) is fixedly connected to the limiting block (513), and the other end is fixedly connected to the connecting component (51); the cross-sectional area of ​​the limiting block (513) is greater than the cross-sectional area of ​​the connecting block (512).

4. The intraoperative muscle traction device according to claim 1, characterized in that, The end of the pulling member (52) away from the pulling hook (523) is provided with a limiting groove (521) and a mounting hole (522); the limiting groove (521) and the mounting hole (522) are connected; the width of the mounting hole (522) is greater than the width of the limiting groove (521).

5. The intraoperative muscle traction device according to claim 1, characterized in that, The fixing part (1) includes a fixing bracket (11), a limiting plate (12) and a limiting member (13); the limiting plate (12) slides inside the fixing bracket (11); one end of the limiting member (13) passes through the fixing bracket (11) and is connected to the limiting plate (12).

6. The intraoperative muscle traction device according to claim 1, characterized in that, The longitudinal adjustment part (2) includes a first longitudinal arm (21), a second longitudinal arm (22) and a longitudinal positioning member (23); one end of the first longitudinal arm (21) is fixedly connected to the fixing part (1), and the other end is slidably connected to the second longitudinal arm (22); one end of the longitudinal positioning member (23) passes through the first longitudinal arm (21) and abuts against the second longitudinal arm (22).

7. The intraoperative muscle traction device according to claim 1, characterized in that, The lateral adjustment part (3) includes a lateral positioning member (24) and a lateral arm (31); one end of the lateral arm (31) is slidably connected to the longitudinal adjustment part (2), and the other end is hinged to the angle adjustment part (4); one end of the lateral positioning member (24) passes through the longitudinal adjustment part (2) and abuts against the lateral arm (31).

8. The intraoperative muscle traction device according to claim 7, characterized in that, A rotating frame (32) is fixedly connected to one end of the transverse arm (31) away from the longitudinal adjustment part (2); the rotating frame (32) is fixedly connected to the angle adjustment part (4).

9. The intraoperative muscle traction device according to claim 1, characterized in that, The angle adjustment part (4) is fixedly connected to a first rotating bracket (41) and a second rotating bracket (42) at both ends; the first rotating bracket (41) is hinged to the lateral adjustment part (3); the second rotating bracket (42) is hinged to the connector (51); the first rotating bracket (41) is provided with a first angle positioning component (44); the second rotating bracket (42) is provided with a second angle positioning component (43).

10. The intraoperative muscle traction device according to claim 9, characterized in that, The first angle positioning component (44) includes a first bolt and a first nut; the first bolt passes through the first rotating bracket (41) and is connected to the first nut; the second angle positioning component (43) includes a second bolt and a second nut; the second bolt passes through the second rotating bracket (42) and is connected to the second nut.

Images