A space maintaining device for a no-cavity mirror neck cleaning operation

Abstract

The application discloses a space maintaining device for a non-inflatable cavity mirror neck cleaning operation, and relates to the technical field of medical instruments.The space maintaining device comprises a base, a sliding groove is formed in the base, a supporting block is installed on the top of the base, a semi-arc rod is installed on the supporting block, a limiting plate is installed at the end of the semi-arc rod away from the supporting block, a moving block is slidably connected to the semi-arc rod, a bearing block is installed at the bottom of the moving block, and a connecting rod is installed on the bearing block; and a fixing component is arranged.The needle umbrella assembly is designed, when medical staff exerts force through the pull rod, the pulling block drives the linkage block to move upwards or downwards along the needle rod, the contraction block and the opening and closing bone are subjected to the linkage action of axial pushing and pulling, a plurality of sets of the opening and closing flaps are driven to synchronously complete the folding puncture and the radial opening action, and the whole operation process is ensured to be accurately and controllably controlled, whether it is the preoperative minimally invasive puncture, the dynamic adjustment of the retraction amplitude during the operation or the space stable maintaining of the operation area.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a space maintenance device for non-inflatable laparoscopic neck dissection surgery. Background Technology

[0002] Endoscopic neck dissection has gradually become one of the important surgical procedures for radical thyroid cancer resection due to its advantages such as minimal trauma, no obvious scarring in the neck after surgery, and rapid patient recovery.

[0003] Traditional laparoscopic neck dissection surgery often uses pneumatic insulation or simple retractors to maintain surgical space. During the procedure, the cutting of neck fascia and lymph node connective tissue requires the surgeon's experience, as there is no specialized device to simultaneously maintain tissue cutting tension. However, existing pneumatic insulation methods are prone to complications such as subcutaneous emphysema, hypercapnia, and gas embolism. Simple retractors require continuous manual operation by an assistant, resulting in poor spatial stability and potential obstruction of the surgical field, potentially damaging densely distributed blood vessels, nerves, and parathyroid glands. Furthermore, uncontrolled cutting tension can lead to tissue displacement and increased bleeding risk, significantly increasing the difficulty and skill level required for the procedure. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a space maintenance device for non-inflatable laparoscopic neck dissection surgery. Through the cooperation of structures such as the fixation unit and the needle umbrella assembly, it solves the problems of existing devices that use inflatable methods, which are prone to complications such as subcutaneous emphysema, hypercapnia, and gas embolism; and that use simple hooks, which have poor spatial stability, are prone to obstructing the surgical field and accidentally injuring important neck tissues. Furthermore, they cannot simultaneously maintain tissue cutting tension, which increases the risk of bleeding and raises the surgical threshold.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A space maintenance device for non-inflatable laparoscopic neck dissection surgery includes a base with a groove coated with an anti-abrasion coating. It also includes a support block mounted on top of the base, a semi-circular rod mounted on the support block, a limit plate mounted on the end of the semi-circular rod away from the support block, a movable block slidably connected to the semi-circular rod, a bearing block mounted at the bottom of the movable block, and a connecting rod mounted on the bearing block. Finally, a fixing component mounted on the connecting rod enables precise instrument fixation and flexible adjustment, stabilizing the surgical area space.

[0006] Preferably, the fixing component includes an annular circle, which is mounted on the connecting rod. The annular circle has a locking groove, and the locking groove has a sliding groove. There are 36 locking grooves, which is conducive to realizing instrument fixation at multiple points in the entire circumference of the surgical area, and facilitates flexible adjustment of the instrument layout to meet the multi-directional operation requirements of neck dissection surgery.

[0007] Preferably, a sliding block is slidably connected in the sliding groove, and a ball joint seat is movably connected on the sliding block. A clamping column is installed at the bottom of the ball joint seat, and a clamping groove is opened in the clamping column, which is conducive to realizing the sliding translation and universal angle adjustment of the instrument, and facilitates the precise adjustment of the instrument's operating position and puncture angle.

[0008] Preferably, the clamping post has an adjustment hole, and an adjustment bolt is threaded into the adjustment hole, which facilitates quick locking and fixing of the inserted surgical instrument and makes it easy to adjust the insertion depth and fixation force of the instrument during the operation.

[0009] Preferably, a clamping forceps is installed inside the clamping column. The clamping forceps include a holding part and a puncture part. The holding part is located in the clamping groove, and the puncture part is located at the bottom of the holding part. This facilitates the puncture, traction, and fixation of the skin and soft tissue in the surgical area, and makes it easier to maintain a stable surgical operating space without an inflatable endoscope.

[0010] Preferably, a needle umbrella assembly is installed inside the clamping column. The needle umbrella assembly includes a core rod located in the clamping groove. A push rod is installed on the core rod, which helps to achieve stable clamping and fixing of the needle umbrella assembly and facilitates precise control of the opening and closing action of the front-end opening structure through the push rod.

[0011] Preferably, a needle bar is installed at the bottom of the core rod, a shrinkage block is slidably connected to the needle bar, an opening and closing bone is installed on the shrinkage block, and an opening flap is installed at the end of the opening and closing bone away from the shrinkage block, which is conducive to converting axial sliding into radial opening action, and facilitates control of the closing puncture and opening and retraction operation of the opening flap.

[0012] Preferably, a linkage block is installed on the shrink block, and a pulling block is installed on the linkage block. The pulling block and the needle rod are slidably connected, which is conducive to realizing the synchronous linkage of multiple sets of opening structures and ensuring the consistency of opening action and uniform force.

[0013] Preferably, the pull block is equipped with a pull rod, which is an arc rod, which is conducive to adapting to the operation needs of the narrow space of the surgical area and makes it easy for the doctor to manually control the opening and closing range of the opening structure during the operation.

[0014] Preferably, the needle shaft is made of medical-grade stainless steel, and the opening flap is an openable puncture flap structure, which helps to ensure the biosafety and structural rigidity of the instrument and facilitates the integrated operation of minimally invasive puncture and tissue opening.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, through its designed needle umbrella assembly, allows medical personnel to apply force via a pull rod, causing the pulling block to move the linkage block upwards or downwards along the needle rod. This, in turn, causes the contraction block and the opening / closing bone to experience axial pushing and pulling linkage, driving multiple sets of opening flaps to simultaneously complete the closing puncture and radial opening actions. Unlike traditional split-type puncture and retraction instruments and fixed surgical hooks, this invention ensures that throughout the entire surgical procedure, whether it is preoperative minimally invasive puncture and needle insertion, dynamic adjustment of the retraction amplitude during surgery, or stable maintenance of the surgical area space during long-term surgery, everything can be precisely and controllably manipulated. It truly achieves the integration of a single instrument to complete the entire process of puncture, opening, retraction, and fixation.

[0016] 2. Through the design of the fixed components, this invention allows medical staff to adjust the layout and posture of surgical instruments as needed, enabling the sliding block, ball joint seat, and clamping column to undergo multi-dimensional adjustment. This, in turn, drives the clamped and fixed instruments to achieve precise adjustment in the entire circumference and multiple degrees of freedom. Unlike traditional rigid fixation brackets with limited degrees of freedom, this invention ensures that throughout the entire surgical process, whether it is the circumferential layout adjustment of multiple instruments or the fine adjustment of the angle and depth of a single instrument, it can be quickly locked and stably fixed. This truly achieves flexible adaptation and reliable limitation of the surgical area in multiple directions, greatly improving the efficiency of instrument adjustment and the maintenance effect of surgical area space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 4 This is a schematic diagram of a portion of the needle umbrella assembly of the present invention; Figure 5 This is a schematic diagram of the internal structure of the needle umbrella assembly of the present invention; Figure 6 for Figure 1 Enlarged view corresponding to point A in the middle; Figure 7 for Figure 3 Enlarged view corresponding to point B in the middle; Figure 8 for Figure 5 The enlarged image corresponds to point C in the middle.

[0018] Drawing number descriptions: 1. Base; 2. Slide groove; 3. Anti-wear coating; 4. Support block; 5. Semi-arc rod; 6. Limiting plate; 7. Moving block; 8. Bearing block; 9. Connecting rod; 10. Fixing component; 11. Annular circle; 12. Snap-fit ​​groove; 13. Sliding groove; 14. Sliding block; 15. Ball joint seat; 16. Clamping column; 17. Clamping groove; 18. Adjusting hole; 19. Adjusting bolt; 20. Clamping clamp; 21. Holding part; 22. Puncture part; 23. Needle umbrella assembly; 24. Core rod; 25. Push rod; 26. Needle rod; 27. Contraction block; 28. Opening and closing bone; 29. ​​Spreading flap; 30. Linkage block; 31. Pulling block; 32. Pull rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: like Figures 1-8 As shown, this is an explanation of the space maintenance device for non-pneumatic laparoscopic neck dissection surgery. The illustrated space maintenance device for non-inflatable laparoscopic neck dissection surgery includes a base 1 with a groove 2 on the base 1 coated with an anti-abrasion coating 3. It also includes a support block 4 mounted on the top of the base 1, a semi-circular rod 5 mounted on the support block 4, a limiting plate 6 mounted on the end of the semi-circular rod 5 away from the support block 4, a movable block 7 slidably connected to the semi-circular rod 5, a bearing block 8 mounted at the bottom of the movable block 7, a connecting rod 9 mounted on the bearing block 8, and a fixing component 10 mounted on the connecting rod 9. The fixing component 10 enables precise fixation and flexible adjustment of instruments, stably maintaining the surgical area space.

[0021] The following is in conjunction with the appendix Figures 1-8 The fixing component 10 includes an annular circle 11, which is mounted on the connecting rod 9. The annular circle 11 has a snap-fit ​​groove 12, and the snap-fit ​​groove 12 has a sliding groove 13. There are 36 snap-fit ​​grooves, which is conducive to realizing the fixation of instruments at multiple points in the entire circumference of the surgical area, and facilitates flexible adjustment of the instrument layout to meet the multi-directional operation requirements of neck dissection surgery. Then, through the designed needle umbrella component 23, when medical staff apply force through the pull rod 32, causing the pull block 31 to drive the linkage block 30 to move upward or downward along the needle rod 26, the contraction block 27 and the opening and closing bone 28 are subjected to axial push and pull linkage, which drives multiple sets of opening flaps 29 to simultaneously complete the closing puncture and radial opening actions. Unlike traditional split puncture and retraction instruments and fixed surgical hooks, this ensures that throughout the entire surgical operation, whether it is preoperative minimally invasive puncture and needle insertion, dynamic adjustment of the retraction amplitude during the operation, or stable maintenance of the surgical area space during long-term surgery, it can be precisely and controllably controlled, truly realizing the integration of a single instrument to complete the entire process of puncture, opening, retraction and fixation.

[0022] In addition, a sliding block 14 is slidably connected in the sliding groove 13, and a ball joint seat 15 is movably connected on the sliding block 14. A clamping column 16 is installed at the bottom of the ball joint seat 15, and a clamping groove 17 is opened in the clamping column 16, which is conducive to realizing the sliding translation and universal angle adjustment of the instrument, and facilitates the precise adjustment of the instrument's operating position and puncture angle.

[0023] Meanwhile, the clamping column 16 is provided with an adjustment hole 18, and the adjustment hole 18 is internally threaded with an adjustment bolt 19, which is conducive to quickly locking and fixing the inserted surgical instruments, and facilitates the adjustment of the insertion depth and fixing force of the instruments during the operation. Example 2: Figures 1-8 As shown, this embodiment further explains Example 1.

[0024] The clamping post 16 contains a clamping forceps 20, which includes a holding part 21 and a puncture part 22. The holding part 21 is located within a clamping groove 17, and the puncture part 22 is located at the bottom of the holding part 21. This facilitates the puncture, traction, and fixation of the skin and soft tissue in the surgical area, and helps to maintain a stable surgical operating space without an inflatable endoscope. The clamping post 16 also contains a needle umbrella assembly 23, which includes a core rod 24 located within the clamping groove 17. A push rod 25 is mounted on the core rod 24, which facilitates the stable clamping and fixation of the needle umbrella assembly 23 and allows for precise control of the opening and closing of the front-end opening structure via the push rod 25.

[0025] In addition, a needle bar 26 is installed at the bottom of the core rod 24. A contraction block 27 is slidably connected to the needle bar 26. An opening and closing bone 28 is installed on the contraction block 27. An opening flap 29 is installed at the end of the opening and closing bone 28 away from the contraction block 27, which is conducive to converting axial sliding into radial opening action and making it easier to control the closing puncture and opening and retraction operation of the opening flap 29.

[0026] Meanwhile, a linkage block 30 is installed on the shrink block 27, and a pulling block 31 is installed on the linkage block 30. The pulling block 31 and the needle rod 26 are slidably connected, which is conducive to realizing the synchronous linkage of multiple sets of opening structures and ensuring the consistency of opening action and uniform force.

[0027] Specifically, a pull rod 32 is installed on the pull block 31. The pull rod 32 is an arc-shaped rod, which is conducive to adapting to the operation needs of the narrow space of the surgical area and makes it easy for doctors to manually control the opening and closing range of the opening structure during the operation.

[0028] Finally, the needle bar 26 is made of medical-grade stainless steel, and the opening flap 29 is an openable puncture flap structure, which helps to ensure the biosafety and structural rigidity of the instrument and facilitates the integrated operation of minimally invasive puncture and tissue opening.

[0029] In summary, when using this device: First, before the surgery begins, the base 1 is stably fixed to the edge of the operating table corresponding to the neck dissection surgery, ensuring that the base 1 is securely installed without any looseness. Then, the semi-circular rod 5 is fixed to the top of the base 1 using the support block 4, so that the arc trajectory of the semi-circular rod 5 completely covers the area directly above the surgical area of ​​the patient's neck. The sliding stroke of the moving block 7 is limited by the limiting plate 6 to avoid the risk of slippage during adjustment. Next, according to the patient's body shape and the location of the surgical incision, the moving block 7 is pushed to slide in an arc along the semi-circular rod 5. At the same time, the spatial height and horizontal position of the bearing block 8 and the connecting rod 9 are adjusted to precisely position the annular circle 11 of the fixing component 10 at the optimal operating height directly above the surgical area, completing the basic positioning of the main body of the device and providing a stable support foundation for subsequent instrument fixation and surgical cavity creation.

[0030] Secondly, after the main body of the device is positioned, according to the operational requirements of the neck dissection surgery, multiple sets of sliding blocks 14 are arranged in the 36 locking slots 12 of the annular circle 11. The sliding blocks 14 are pushed to slide circumferentially along the sliding groove 13 to adjust the circumferential layout of each clamping mechanism to adapt to the multi-directional retraction and operation requirements of the surgical area. Then, the universal angle of the ball joint seat 15 is adjusted to drive the clamping column 16 to adjust to the preset puncture and operation angle. The corresponding positions of the surgical instruments such as the clamping forceps 20 and the needle umbrella assembly 23 are inserted into the clamping groove 17. After confirming that the insertion depth and angle of the instruments meet the surgical requirements, the adjusting bolt 19 in the adjusting hole 18 is turned to complete the rigid locking and fixation of the instruments, ensuring that the instruments will not shift or loosen during the operation, and providing a stable fixed foundation for maintaining the surgical area space.

[0031] Then, after clamping and fixing the needle umbrella assembly 23, the medical staff holds the arc-shaped pull rod 32 and applies force. First, the pull rod 32 drives the pulling block 31 to move upward along the needle rod 26. Then, the linkage block 30 drives the contraction block 27 to move upward synchronously. At this time, the opening and closing bone 28 is subjected to the linkage of axial push and pull, which drives multiple sets of opening flaps 29 to retract inward synchronously, so that the tips of multiple sets of opening flaps 29 close together to form a complete minimally invasive puncture tip. Then, the closed opening flaps 29 are punctured along the pre-set incision in the surgical area to the subcutaneous target layer. Then, the pull rod 32 is pushed downward, and the contraction block 27 is moved downward through the linkage structure. This drives the opening and closing bone 28 to convert the axial sliding into radial opening force, which drives multiple sets of opening flaps 29 to open outward synchronously, completing the retraction of the subcutaneous tissue in the surgical area and establishing and stabilizing the operating space required for airless laparoscopic surgery.

[0032] Finally, throughout the entire neck dissection procedure, the device can be dynamically adjusted at any time according to the surgical area exposure requirements of the surgical process: the position of the moving block 7 can be adjusted along the semi-circular rod 5 to change the overall coverage of the fixed component 10; the circumferential position of the sliding block 14 can be adjusted along the sliding groove 13 to change the layout angle of the instruments; the opening amplitude of the opening flap 29 can be finely adjusted through the pull rod 32 to adapt to the spatial requirements of different surgical steps; the angle of the ball joint seat 15 and the locking force of the adjusting bolt 19 can also be readjusted to replace or adjust the surgical instruments. After the entire surgery is completed, the opening flap 29 is first closed by pulling the pull rod 32 to remove the needle umbrella assembly 23 from the surgical area, then the adjusting bolt 19 is loosened to unlock all instruments, and finally the entire device is disassembled from the operating table to complete the entire process. The operating table is the existing structure.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A space maintenance device for non-inflatable laparoscopic neck dissection surgery, comprising a base (1), wherein a groove (2) is provided on the base (1), and the groove (2) is coated with an anti-wear coating (3). Its features are, Also includes: A support block (4) is installed on the top of the base (1), a semi-circular rod (5) is installed on the support block (4), a limit plate (6) is installed on the end of the semi-circular rod (5) away from the support block (4), a moving block (7) is slidably connected to the semi-circular rod (5), a bearing block (8) is installed at the bottom of the moving block (7), and a connecting rod (9) is installed on the bearing block (8); and, The fixing component (10) installed on the connecting rod (9) enables precise fixation and flexible adjustment of the instrument, and stabilizes the surgical area space.

2. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 1, characterized in that: The fixing component (10) includes an annular circle (11), which is mounted on the connecting rod (9). The annular circle (11) has a snap-fit ​​groove (12), and the snap-fit ​​groove (12) has a sliding groove (13).

3. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 2, characterized in that: A sliding block (14) is slidably connected in the sliding groove (13), and a ball joint seat (15) is movably connected on the sliding block (14). A clamping column (16) is installed at the bottom of the ball joint seat (15), and a clamping groove (17) is opened in the clamping column (16).

4. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 3, characterized in that: An adjustment hole (18) is provided on the clamping column (16), and an adjustment bolt (19) is threaded into the adjustment hole (18).

5. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 4, characterized in that: A clamping pliers (20) is installed inside the clamping post (16). The clamping pliers (20) includes a gripping part (21) and a piercing part (22). The gripping part (21) is located inside the clamping groove (17), and the piercing part (22) is located at the bottom of the gripping part (21).

6. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 5, characterized in that: A needle umbrella assembly (23) is installed inside the clamping post (16). The needle umbrella assembly (23) includes a core rod (24). The core rod (24) is located inside the clamping groove (17). A push rod (25) is installed on the core rod (24).

7. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 6, characterized in that: The core rod (24) is equipped with a needle rod (26) at the bottom. A shrinkage block (27) is slidably connected to the needle rod (26). An opening and closing bone (28) is installed on the shrinkage block (27). An opening flap (29) is installed at the end of the opening and closing bone (28) away from the shrinkage block (27).

8. The space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 7, characterized in that: A linkage block (30) is installed on the shrink block (27), and a pull block (31) is installed on the linkage block (30). The pull block (31) and the needle bar (26) are slidably connected.

9. A space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 8, characterized in that: A pull rod (32) is installed on the pull block (31), and the pull rod (32) is an arc-shaped rod.

10. A space maintenance device for non-inflatable laparoscopic neck dissection surgery according to claim 7, characterized in that: The needle bar (26) is made of medical grade stainless steel, and the opening valve (29) is an openable puncture valve structure.

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