Space dilator for endoscopic thyroid surgery

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a space dilator for endoscopic thyroid surgery, which comprises a handheld handle, a connecting rod component is fixedly mounted at one end of the handheld handle, and a dilation component is fixedly mounted at one end, far away from the handheld handle, of the connecting rod component; the expanding assembly comprises an expanding head, a mounting plate, a driving motor, a threaded rod, a first supporting plate, a second supporting plate, a first moving block, a second moving block, a connecting plate, a connecting assembly, a supporting rod and an expanding plate. When the device is used for surgical dilation, after the dilation assembly is put into a surgical site, a driving motor is controlled to rotate forwards to drive a second moving block to move, so that a supporting rod is driven to move, a dilation plate is dilated, and dilation is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments and equipment, and in particular relates to a space expander for laparoscopic thyroid surgery. Background Art

[0002] Thyroid disease is a common and frequently occurring disease, especially in young women. Surgical treatment is one of the ultimate cures for this disease, and it is also the most commonly used and effective method. Traditional open surgery requires a surgical scar about 6 to 8 cm long to be left on the neck, which leaves a strong psychological shadow on the patient and seriously affects their daily life, study and work. Laparoscopic thyroid surgery has completely changed this situation. While curing the disease, it makes the wound tiny and hidden, taking into account the advantages of safe removal of thyroid lesions and beauty. It is currently being carried out more and more widely.

[0003] In order to facilitate expansion of the surgical site during laparoscopic thyroid surgery and to facilitate the doctor to perform the surgery, we propose a space expander for laparoscopic thyroid surgery. Summary of the invention

[0004] In view of the deficiencies of the prior art, an object of the present invention is to provide a space expander for laparoscopic thyroid surgery.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A space expander for laparoscopic thyroid surgery, comprising:

[0007] A hand-held handle, one end of which is fixedly mounted with a connecting rod assembly, and one end of which is away from the hand-held handle is fixedly mounted with an expansion assembly;

[0008] The expansion assembly includes: an expansion head, a mounting plate, a drive motor, a threaded rod, a first support plate, a second support plate, a first moving block, a second moving block, a connecting plate, a connecting assembly, a support rod and a propping plate, wherein the expansion head is a cylindrical structure, a plurality of grooves are provided at the side end of the expansion head, a moving groove is provided inside the expansion head, the mounting plate is fixedly mounted on an end of the expansion head away from the connecting assembly, the drive motor is fixedly mounted on the side end of the mounting plate, the threaded rod is fixedly connected to the output shaft of the drive motor, the threaded rod is supported by the first support plate and the second support plate, and the The first support plate and the second support plate are both fixedly connected to the inner wall of the expansion head, the first moving block is installed at the side end of the threaded rod, the first moving block is threadedly connected to the threaded rod, the second moving block is installed in the moving groove of the expansion head, and the first moving block and the second moving block are fixedly connected by multiple connecting plates, the number of the connecting plates is equal to the number of the grooves, and the connecting plates pass through the grooves, one end of the expansion plate is rotatably connected to the outer wall of the expansion head through a connecting assembly, and the other end of the expansion plate can be freely opened, and the two ends of the support rod are respectively connected to the second moving block and the expansion plate through a connecting assembly.

[0009] Furthermore, the connection portion between the support rod and the support plate is close to the connecting rod assembly, and the connection portion between the support rod and the second connecting block is close to the mounting plate.

[0010] Furthermore, the initial position of the first moving block is close to the driving motor, at which time both ends of the expansion plate are close to the expansion head. When the first moving block moves away from the driving motor, the end of the expansion plate rotatably connected to the second moving block will expand outward.

[0011] Furthermore, the threaded rod is rotationally connected to the first support plate and the second support plate.

[0012] Furthermore, the length of the expansion plate is greater than the length of the expansion head.

[0013] Furthermore, a pinhole detection head is fixedly mounted on the central portion of one end of the mounting plate away from the expansion head, and a lighting bulb is fixedly mounted on the peripheral side of the pinhole detection head at one end of the mounting plate away from the expansion head.

[0014] Further, the connecting rod assembly includes a first connecting rod and a second connecting rod, an accommodating cavity is opened inside the first connecting rod near one end of the first connecting rod, an electric telescopic rod is fixedly installed in the accommodating cavity, and a protrusion is provided at one end of the second connecting rod near the first connecting rod, the protrusion is adapted to the accommodating cavity, and the protrusion of the first connecting rod is fixedly connected to the telescopic end of the electric telescopic rod.

[0015] Furthermore, two sliding grooves are provided on the side wall of the first connecting rod accommodating cavity, and sliding blocks are fixedly installed on both side ends of the protruding portion of the second connecting rod, and the sliding blocks are adapted to the sliding grooves, and the first connecting rod and the second connecting rod are slidably connected.

[0016] Furthermore, a battery is installed inside the hand-held handle, and a plurality of control buttons are installed on the upper end of the hand-held handle. The control buttons are electrically connected to the drive motor, the electric telescopic rod, the pinhole detection head and the photo bulb. The battery is electrically connected to the control buttons, the drive motor, the electric telescopic rod, the pinhole detection head and the photo bulb.

[0017] Furthermore, the connecting assembly includes a connecting block, a connecting shaft and a connecting ring. There are two connecting blocks. The connecting shaft is fixedly installed between the two connecting blocks. The connecting ring is installed on the side end of the connecting shaft, and the connecting ring and the connecting shaft are rotatably connected.

[0018] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0019] Fixed connection: refers to a connection in which parts or components are fixed without any relative movement. It is divided into detachable connection and non-detachable connection.

[0020] (1) Removable connection: The parts are fixed together by screws, splines, wedge pins, etc. This connection method can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0021] (2) Non-detachable connection: mainly refers to welding, riveting and tenoning. Since forging, sawing or oxygen cutting are required for disassembly during maintenance or replacement, spare parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.) during connection.

[0022] Beneficial effects of the present invention:

[0023] When the device is used for surgical expansion, after the expansion component is placed into the surgical site, the drive motor is controlled to rotate forward to drive the second moving block to move, thereby driving the support rod to move, thereby expanding the expansion plate to achieve expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the overall device of an embodiment of the present invention;

[0026] Figure 2 is a cross-sectional view of the overall device of an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the structure of an expansion assembly according to an embodiment of the present invention;

[0028] Figure 4 is a cross-sectional view of an expansion assembly according to an embodiment of the present invention;

[0029] Figure 5 is a schematic diagram of the structure inside the expansion component of an embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of an expansion head according to an embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure when the expansion plate is connected to the second moving block in the expansion assembly of the embodiment of the present invention;

[0032] Figure 8 Embodiment of the present invention Figure 7 Schematic diagram of the structure enlarged at point A in the middle.

[0033] Figure numerals: 1. handle; 2. connecting rod assembly; 3. expansion assembly; 4. expansion head; 5. mounting plate; 6. drive motor; 7. threaded rod; 8. first support plate; 9. second support plate; 10. first moving block; 11. second moving block; 12. connecting plate; 13. connecting assembly; 14. opening plate; 15. groove; 16. moving groove; 17. pinhole detection head; 18. photo bulb; 19. first connecting rod; 20. second connecting rod; 21. accommodating chamber; 22. electric telescopic rod; 23. protrusion; 24. slide groove; 25. slider; 26. battery; 27. control button; 28. connecting block; 29. ​​connecting shaft; 30. connecting ring; 31. support rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] A space expander for laparoscopic thyroid surgery, such as Figures 1 to 8 As shown, including:

[0036] A hand-held handle 1, a connecting rod assembly 2 is fixedly mounted on one end of the hand-held handle 1, and an expansion assembly 3 is fixedly mounted on the end of the connecting rod assembly 2 away from the hand-held handle 1;

[0037] The expansion assembly 3 includes: an expansion head 4, a mounting plate 5, a drive motor 6, a threaded rod 7, a first support plate 8, a second support plate 9, a first moving block 10, a second moving block 11, a connecting plate 12, a connecting assembly 13, a support rod 31 and a propping plate 14. The expansion head 4 is a cylindrical structure, a plurality of grooves 15 are provided at the side end of the expansion head 4, a moving groove 16 is provided inside the expansion head 4, the mounting plate 5 is fixedly mounted on the end of the expansion head 4 away from the connecting assembly 13, the drive motor 6 is fixedly mounted on the side end of the mounting plate 5, the threaded rod 7 is fixedly connected to the output shaft of the drive motor 6, the threaded rod 7 is supported by the first support plate 8 and the second support plate 9, the first support The support plate 8 and the second support plate 9 are both fixedly connected to the inner wall of the expansion head 4, the first movable block 10 is installed on the side end of the threaded rod 7, the first movable block 10 is threadedly connected to the threaded rod 7, the second movable block 11 is installed in the movable groove 16 of the expansion head 4, and the first movable block 10 and the second movable block 11 are fixedly connected by a plurality of connecting plates 12, the number of the connecting plates 12 is equal to the number of the grooves 15, and the connecting plates 12 pass through the grooves 15, one end of the expansion plate 14 is rotatably connected to the outer wall of the expansion head 4 through a connecting assembly 13, and the other end of the expansion plate 14 can be freely opened, and the two ends of the support rod 31 are respectively connected to the second movable block 11 and the expansion plate 14 through the connecting assembly 13.

[0038] When using the device for surgical expansion, first put the expansion component 3 into the surgical site. When expanding the space, first start the drive motor 6. After the drive motor 6 is started, it will drive the threaded rod 7 to rotate. The rotation of the threaded rod 7 will drive the first moving block 10 to move at the side end of the threaded rod 7, thereby driving the second moving block 11 to move. It should be noted here that the forward rotation of the drive motor 6 will drive the first moving block 10 to move away from the drive motor 6, and the reverse rotation of the drive motor 6 will drive the second moving block 11 to move toward the drive motor 6. Because one end of the expansion plate 14 is connected to the expansion head 4 through the connection component 13 The support rod 31 is connected to the second movable block 11, and the two ends of the support rod 31 are rotatably connected to the second support block and the open plate 14 through the connecting assembly 13. Therefore, when the driving motor 6 rotates forward and the second movable block 11 moves away from the driving motor 6, the support rod 31 is driven to move, thereby expanding the open plate 14; when the driving motor 6 is reversed and the second movable block 11 moves toward the driving motor 6, the support rod 31 is driven to move, thereby closing the open plate 14 and restoring the open plate 14 to its initial state.

[0039] As a preferred embodiment of the present invention, Figure 4 As shown, the connection portion between the support rod 31 and the opening plate 14 is close to the connecting rod assembly 2 , and the connection portion between the support rod 31 and the second connecting block 28 is close to the mounting plate 5 .

[0040] As a preferred embodiment of the present invention, Figure 4 As shown, the initial position of the first moving block 10 is close to the driving motor 6. At this time, both ends of the expansion plate 14 are close to the expansion head 4. When the first moving block 10 moves away from the driving motor 6, the end of the expansion plate 14 that is rotatably connected to the second moving block 11 will expand outward.

[0041] As a preferred embodiment of the present invention, Figure 4 As shown, the threaded rod 7 is rotationally connected to the first support plate 8 and the second support plate 9; the first support plate 8 and the second support plate 9 are mainly used to support the threaded rod 7 to facilitate the rotation of the threaded rod 7 under the action of the drive motor 6.

[0042] As a preferred embodiment of the present invention, Figure 3 As shown, the length of the expansion plate 14 is greater than the length of the expansion head 4 .

[0043] As a preferred embodiment of the present invention, Figure 3 As shown, a pinhole detector 17 is fixedly installed at the central part of the end of the mounting plate 5 away from the expansion head 4, and a lighting bulb is fixedly installed on the peripheral side of the pinhole detector 17 at the end of the mounting plate 5 away from the expansion head 4; the photo bulb 18 is provided to illuminate the inspection area during laparoscopic thyroid surgery, thereby facilitating observation of the surgical area through the pinhole detector 17.

[0044] As a preferred embodiment of the present invention, Figure 2 As shown, the connecting rod assembly 2 includes a first connecting rod 19 and a second connecting rod 20, wherein a receiving cavity 21 is provided inside the first connecting rod 19 near one end of the first connecting rod 19, and an electric telescopic rod 22 is fixedly installed in the receiving cavity 21, and a protrusion 23 is provided at one end of the second connecting rod 20 near the first connecting rod 19, wherein the protrusion 23 is adapted to the receiving cavity 21, and the protrusion 23 of the first connecting rod 19 is fixedly connected to the telescopic end of the electric telescopic rod 22. The protrusion 23 of the second connecting rod 20 can move in the receiving cavity 21 of the first connecting rod 19 under the action of the electric telescopic rod 22, thereby realizing the extension of the entire connecting rod assembly 2.

[0045] As a preferred embodiment of the present invention, Figure 2As shown, two slide grooves 24 are provided on the side walls of the accommodating cavity 21 of the first connecting rod 19, and sliders 25 are fixedly installed on both side ends of the protruding portion 23 of the second connecting rod 20, and the sliders 25 are adapted to the slide grooves 24, and the first connecting rod 19 and the second connecting rod 20 are slidably connected; the setting of the sliders 25 and the slide grooves 24 is to facilitate the movement of the second connecting rod 20 under the action of the electric telescopic rod 22.

[0046] As a preferred embodiment of the present invention, Figure 2 As shown, a battery 26 is installed inside the hand-held handle 1, and a plurality of control buttons 27 are installed at the upper end of the hand-held handle 1. The control buttons 27 are electrically connected to the drive motor 6, the electric telescopic rod 22, the pinhole detector 17 and the photo bulb 18. The battery 26 is electrically connected to the control buttons 27, the drive motor 6, the electric telescopic rod 22, the pinhole detector 17 and the photo bulb 18; the battery 26 is used to provide the drive motor 6, the electric telescopic rod 22, the lighting bulb and the pinhole detector 17 with the power required for their respective use; the control buttons 27 are used to control the drive motor 6, the electric telescopic rod 22, the lighting bulb and the pinhole detector 17 respectively.

[0047] As a preferred embodiment of the present invention, Figure 8 As shown, the connecting assembly 13 includes a connecting block 28, a connecting shaft 29 and a connecting ring 30. There are two connecting blocks 28. The connecting shaft 29 is fixedly installed between the two connecting blocks 28. The connecting ring 30 is installed on the side end of the connecting shaft 29, and the connecting ring 30 and the connecting shaft 29 are rotatably connected.

[0048] The working principle and use process of the present invention:

[0049] When the device is used for surgical expansion, the expansion component 3 is first placed into the surgical site. When performing space expansion, the drive motor 6 is first started to rotate forward. After the drive motor 6 is started, it will drive the threaded rod 7 to rotate. The rotation of the threaded rod 7 will drive the first moving block 10 to move at the side end of the threaded rod 7, thereby driving the second moving block 11 to move. Since one end of the expansion plate 14 is rotationally connected to the expansion head 4 through the connecting component 13, and the expansion plate 14 and the second moving block 11 are connected through the support rod 31, and both ends of the support rod 31 are rotationally connected to the second support block and the expansion plate 14 through the connecting component 13, when the drive motor 6 rotates forward and the second moving block 11 moves away from the drive motor 6, it will drive the support rod 31 to move, thereby expanding the expansion plate 14, thereby achieving expansion.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A space expander for laparoscopic thyroid surgery, characterized in that: include: A hand-held handle (1), wherein a connecting rod assembly (2) is fixedly mounted on one end of the hand-held handle (1), and an expansion assembly (3) is fixedly mounted on one end of the connecting rod assembly (2) away from the hand-held handle (1); The expansion assembly (3) comprises: an expansion head (4), a mounting plate (5), a drive motor (6), a threaded rod (7), a first support plate (8), a second support plate (9), a first moving block (10), a second moving block (11), a connecting plate (12), a connecting assembly (13), a support rod (31) and an opening plate (14); the expansion head (4) is of a cylindrical structure; a plurality of grooves (15) are provided at a side end of the expansion head (4); a moving groove (16) is provided inside the expansion head (4); the mounting plate (5) is fixedly mounted on an end of the expansion head (4) away from the connecting assembly (13); the drive motor (6) is fixedly mounted on a side end of the mounting plate (5); the threaded rod (7) is fixedly connected to an output shaft of the drive motor (6); the threaded rod (7) is supported by the first support plate (8) and the second support plate (9); The first support plate (8) and the second support plate (9) are both fixedly connected to the inner wall of the expansion head (4); the first moving block (10) is installed on the side end of the threaded rod (7); the first moving block (10) is threadedly connected to the threaded rod (7); the second moving block (11) is installed in the moving groove (16) of the expansion head (4); and the first moving block (10) and the second moving block (11) are fixedly connected via a plurality of connecting plates (12); the number of the connecting plates (12) is equal to the number of the grooves (15); and the connecting plates (12) pass through the grooves (15); one end of the expansion plate (14) is rotatably connected to the outer wall of the expansion head (4) via a connecting assembly (13); the other end of the expansion plate (14) can be freely opened; and the two ends of the support rod (31) are respectively connected to the second moving block (11) and the expansion plate (14) via the connecting assembly (13).

2. A space expander for laparoscopic thyroid surgery according to claim 1, characterized in that: The connection portion between the support rod (31) and the support plate (14) is close to the connecting rod assembly (2), and the connection portion between the support rod (31) and the second connecting block (28) is close to the mounting plate (5).

3. A space expander for laparoscopic thyroid surgery according to claim 2, characterized in that: The initial position of the first moving block (10) is close to the driving motor (6), at which time both ends of the expansion plate (14) are close to the expansion head (4); when the first moving block (10) moves in a direction away from the driving motor (6), the end of the expansion plate (14) that is rotatably connected to the second moving block (11) will expand outward.

4. The space expander for laparoscopic thyroid surgery according to claim 3, characterized in that: The threaded rod (7) is rotatably connected to the first support plate (8) and the second support plate (9).

5. The space expander for laparoscopic thyroid surgery according to claim 4, characterized in that: The length of the expansion plate (14) is greater than the length of the expansion head (4).

6. The space expander for laparoscopic thyroid surgery according to claim 5, characterized in that: A pinhole detection head (17) is fixedly mounted on the central portion of one end of the mounting plate (5) away from the expansion head (4), and a lighting bulb is fixedly mounted on the peripheral side of the pinhole detection head (17) at one end of the mounting plate (5) away from the expansion head (4).

7. A space expander for laparoscopic thyroid surgery according to claim 6, characterized in that: The connecting rod assembly (2) comprises a first connecting rod (19) and a second connecting rod (20); a receiving cavity (21) is provided inside the first connecting rod (19) near one end of the first connecting rod (19); an electric telescopic rod (22) is fixedly installed in the receiving cavity (21); a protrusion (23) is provided at one end of the second connecting rod (20) near the first connecting rod (19); the protrusion (23) is adapted to the receiving cavity (21), and the protrusion (23) of the first connecting rod (19) is fixedly connected to the telescopic end of the electric telescopic rod (22).

8. The space expander for laparoscopic thyroid surgery according to claim 7, characterized in that: The side wall of the accommodating cavity (21) of the first connecting rod (19) is provided with two sliding grooves (24), and sliding blocks (25) are fixedly installed on both side ends of the protruding portion (23) of the second connecting rod (20), and the sliding blocks (25) are adapted to the sliding grooves (24), and the first connecting rod (19) and the second connecting rod (20) are slidably connected.

9. The space expander for laparoscopic thyroid surgery according to claim 8, characterized in that: A storage battery (26) is installed inside the hand-held handle (1); a plurality of control buttons (27) are installed on the upper end of the hand-held handle (1); the control buttons (27) are electrically connected to the drive motor (6), the electric telescopic rod (22), the pinhole detection head (17) and the photo light bulb (18); and the storage battery (26) is electrically connected to the control buttons (27), the drive motor (6), the electric telescopic rod (22), the pinhole detection head (17) and the photo light bulb (18).

10. The space expander for laparoscopic thyroid surgery according to claim 9, characterized in that: The connecting assembly (13) comprises a connecting block (28), a connecting shaft (29) and a connecting ring (30), wherein the connecting blocks (28) are two, the connecting shaft (29) is fixedly mounted between the two connecting blocks (28), the connecting ring (30) is mounted on the side end of the connecting shaft (29), and the connecting ring (30) and the connecting shaft (29) are rotatably connected.

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