Reusable anus operation distraction device

Abstract

The invention discloses a reusable anus operation distraction device which comprises a handle box, a direct-current power source is fixedly connected into the handle box, an annular negative electrode and an annular positive electrode are arranged at the top of the direct-current power source, a fixing disc is fixedly connected to the top end of the handle box, and a connector is fixedly connected to the top of the fixing disc. The top of the connector is fixedly connected with a memory alloy supporting rod; two circular grooves are formed in the side wall of the fixed disc, a hardening adjusting rotary disc and a cold and hot adjusting rotary disc are rotationally connected into the two circular grooves, two first conductive columns are fixedly connected to the cold and hot adjusting rotary disc in a penetrating mode, and the lower ends of the two first conductive columns movably abut against the annular negative electrode and the annular positive electrode respectively. The memory alloy supporting rod can replace traditional mechanical expansion, and through spiral progressive expansion, the anus curve is met, tissue tearing is reduced, and the comfort level of a patient is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a reusable anal surgery dilator. Background Art

[0002] Anorectal diseases are diseases that occur in the anus and large intestine. When examining or surgically treating anorectal diseases, it is necessary to first use auxiliary tools to stretch the anus, and then insert other medical devices for examination or treatment.

[0003] However, traditional anal retractors have the following defects:

[0004] 1. Rigid structure: fixed diameter can easily cause tissue tearing or insufficient expansion;

[0005] 2. Patient discomfort: The expansion process lacks gradualness, causing pain or spasms. Summary of the Invention

[0006] The present invention provides a reusable anal surgical dilator to solve the problems raised in the above background technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A reusable anal surgical dilator device includes a handle box, a DC power supply fixedly connected to the interior of the handle box, an annular negative electrode and an annular positive electrode provided on the top of the DC power supply, a fixed disk fixedly connected to the top of the handle box, a connector fixedly connected to the top of the connector, and a memory alloy support rod fixedly connected to the top of the connector;

[0009] Two circular grooves are provided on the side wall of the fixed disk, and a hardening adjustment dial and a hot and cold adjustment dial are rotatably connected in the two circular grooves. Two first conductive posts are fixedly connected through the hot and cold adjustment dial, and the lower ends of the two first conductive posts are movably abutted with the annular negative electrode and the annular positive electrode respectively. Two second conductive posts are fixedly connected through the hardening adjustment dial, and the bottom ends of the two second conductive posts are movably abutted with the annular negative electrode and the annular positive electrode respectively. An electrical abutment device is provided in the connector;

[0010] The memory alloy strut is made of a superelastic and shape-memory nickel-titanium alloy, and the surface of the memory alloy strut is coated with a shape-memory polymer layer;

[0011] A filling cavity is defined in the memory alloy support rod, and a sealing layer is fixedly connected to one side of the filling cavity. The sealing layer is made of a flexible thermally conductive insulating material. A plurality of semiconductor hot and cold structures are embedded in the sealing layer in sequence and at equal intervals. The plurality of semiconductor hot and cold structures are electrically connected to the two second conductive sliders.

[0012] Conductive sheets are fixedly connected to the side walls of the sealing layer and the side walls of the filling cavity, electrorheological fluid is filled between the two conductive sheets, an insulating layer is provided on the conductive sheet, and the conductive sheet is made of flexible conductive material. The side walls of the two conductive sheets are respectively electrically connected to second wires, and the two second wires extend into the connector and are respectively electrically connected to the two second conductive sliders through two second mounting grooves.

[0013] As a further improvement of the technical solution: the memory alloy support rod expands in a spiral shape at a temperature greater than 37°C and contracts in a linear shape at a temperature less than 10°C.

[0014] As a further improvement of the present technical solution: the top diameter of the spiral shape of the unfolded memory alloy support rod is smaller than the bottom diameter.

[0015] As a further improvement of the present technical solution: the electrical abutment device includes two second mounting grooves and two first mounting grooves opened on the bottom side of the connector, the two second mounting grooves are slidably connected with second conductive sliders, each second conductive slider is fixedly connected to the bottom side wall of the second mounting groove with a second spring, the two first mounting grooves are slidably connected with first conductive sliders, each first conductive slider is fixedly connected to the bottom side wall of the first mounting groove with a first spring, the two are respectively movably electrically connected to the two second conductive posts, and the two first conductive sliders are respectively movably electrically connected to the two first conductive posts.

[0016] As a further improvement of the present technical solution: each of the semiconductor hot and cold structures includes an N-type semiconductor and a P-type semiconductor, a heat conducting plate is fixedly connected between the two N-type semiconductors, a first wire is electrically connected to a plurality of the N-type semiconductors, and another first wire is electrically connected to a plurality of the P-type semiconductors, and both of the two first wires extend into the connector and are electrically connected to the two first conductive sliders through two first mounting grooves, respectively.

[0017] As a further improvement of this technical solution: the bottom ends of the second conductive slider and the first conductive slider are both provided with hemispherical bumps, and the tops of the second conductive column and the first conductive column are provided with hemispherical grooves that match the shape of the hemispherical bumps.

[0018] As a further improvement of the present technical solution: the bottom ends of the second conductive column and the first conductive column are fixedly connected with a conductive abutment joint, and the conductive abutment joint is made of a flexible conductive material. The conductive abutment joint makes the second conductive column and the first conductive column more stable when electrically abutting against the annular positive electrode and the annular negative electrode.

[0019] As a further improvement of the present technical solution: two slots are provided on the surface of the hardened adjustment dial, and when the second conductive slider is against the two slots, the second conductive slider is in a power-off state.

[0020] As a further improvement of the present technical solution: the shape memory polymer layer is made of temperature-sensitive polycaprolactone.

[0021] As a further improvement of this technical solution: the connector, hardened adjustment dial, and handle box are all made of insulating materials.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The memory alloy strut of the present invention can replace the traditional mechanical expansion and expand gradually through spiral expansion: it conforms to the anal curve, reduces tissue tearing, and improves patient comfort.

[0024] 2. The present invention integrates hot and cold adjustment and hardness adjustment functions to meet the temperature and hardness requirements during surgery, improving surgical results and patient comfort.

[0025] 3. The overall easy-to-clean design of the device facilitates postoperative cleaning and disinfection and can be used multiple times, reducing medical costs and the risk of cross infection.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 This is a schematic structural diagram of a reusable anal surgical dilator device in a contracted state, as proposed by the present invention;

[0029] Figure 2 This is a schematic structural diagram of a reusable anal surgical distraction device in an expanded state, as proposed by the present invention;

[0030] Figure 3 This is a schematic diagram of the expanded structure of the components between the handle box and the connector in the present invention;

[0031] Figure 4 This is a schematic diagram of a lower partial front cross-sectional structure of a reusable anal surgical distraction device proposed by the present invention;

[0032] Figure 5 This is a schematic front cross-sectional view of the fixing plate and the connector proposed in the present invention;

[0033] Figure 6 This is a schematic diagram of the bottom structure of the fixed plate proposed by the present invention;

[0034] Figure 7 This is a schematic diagram of the bottom structure of the connector proposed by the present invention;

[0035] Figure 8 This is a schematic diagram of the structure in which multiple semiconductor hot and cold structures are electrically connected to each other in the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0037] 1. Handle box; 2. Fixing plate; 3. Hot and cold adjustment dial; 4. Connector; 5. Memory alloy support rod; 6. Hardened adjustment dial; 7. First conductive column; 8. Slot; 9. Second conductive column; 10. Conductive abutment; 11. Second conductive slider; 12. First conductive slider; 13. Second mounting slot; 14. Second spring; 15. First mounting slot; 16. First spring; 17. First wire; 18. Second wire; 19. Annular positive electrode; 20. Annular negative electrode; 21. Conductive sheet; 22. Electrorheological fluid; 23. Sealant layer; 24. N-type semiconductor; 25. Thermal conductive sheet; 26. P-type semiconductor; 27. DC power supply. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not to exact scale, and are only used for the purpose of conveniently and clearly illustrating the embodiments of the present invention.

[0039] See also Figures 1 to 8In an embodiment of the present invention, a reusable anal surgical dilator device includes a handle box 1, the interior of the handle box 1 is fixedly connected to a DC power supply 27, the top of the DC power supply 27 is provided with an annular negative electrode 20 and an annular positive electrode 19, the top of the handle box 1 is fixedly connected to a fixed disk 2, the top of the fixed disk 2 is fixedly connected to a connector 4, wherein the connector 4, the hardening adjustment dial 6, and the handle box 1 are all made of insulating materials, the top of the connector 4 is fixedly connected to a memory alloy strut 5, the memory alloy strut 5 is made of a superelastic and shape-memory nickel-titanium alloy, the surface of the memory alloy strut 5 is coated with a shape-memory polymer layer, the shape-memory polymer layer is made of temperature-sensitive polycaprolactone, the memory alloy strut 5 is spirally unfolded at a temperature greater than 37°C, and the diameter of the top ring of the unfolded spiral shape is smaller than the diameter of the bottom ring, the unfolded spiral memory alloy strut 5 is arranged at a right angle near the connector 4, and thus does not block the bottom of the spiral memory alloy strut 5;

[0040] Two circular grooves are provided on the side wall of the fixed disk 2, and the hardening adjustment dial 6 and the hot and cold adjustment dial 3 are rotatably connected in the two circular grooves. Two first conductive posts 7 are fixedly connected through the hot and cold adjustment dial 3, and the lower ends of the two first conductive posts 7 are movably abutted with the annular negative electrode 20 and the annular positive electrode 19 respectively. Two second conductive posts 9 are fixedly connected through the hardening adjustment dial 6, and the bottom ends of the two second conductive posts 9 are movably abutted with the annular negative electrode 20 and the annular positive electrode 19 respectively. The bottom ends of the second conductive slider 11 and the first conductive slider 12 are both provided with hemispherical protrusions, and the tops of the second conductive posts 9 and the first conductive posts 7 are provided with hemispherical grooves that match the shape of the hemispherical protrusions.

[0041] Two second mounting grooves 13 and two first mounting grooves 15 are formed on the bottom side of the connector 4. Second conductive sliders 11 are slidably connected in the two second mounting grooves 13. A second spring 14 is fixedly connected between each second conductive slider 11 and the bottom side wall of the second mounting groove 13. First conductive sliders 12 are slidably connected in the two first mounting grooves 15. A first spring 16 is fixedly connected between each first conductive slider 12 and the bottom side wall of the first mounting groove 15. The two first conductive sliders 12 are respectively movably electrically connected to the two second conductive posts 9, and the two first conductive sliders 12 are respectively movably electrically connected to the two first conductive posts 7.

[0042] Specifically, a filling cavity is defined within the memory alloy support rod 5, and a sealing layer 23 is fixedly connected to one side of the filling cavity. The sealing layer 23 is made of a flexible thermally conductive insulating material. A plurality of semiconductor hot and cold structures are embedded in the sealing layer 23 at equal intervals, and the plurality of semiconductor hot and cold structures are electrically connected to the two second conductive sliders 11. Each semiconductor hot and cold structure includes an N-type semiconductor 24 and a P-type semiconductor 26. A thermal conductive sheet 25 is fixedly connected between the two N-type semiconductors 24 and the N-type semiconductors 24. A first wire 17 is electrically connected to the plurality of N-type semiconductors 24, and another first wire 17 is electrically connected to the plurality of P-type semiconductors 26. The two first wires 17 extend into the connector 4 and are electrically connected to the two first conductive sliders 12 through the two first mounting grooves 15, respectively.

[0043] When the hot / cold adjustment dial 3 is rotated, the bottom end of the first conductive slider 12 abuts against the upper ends of the two first conductive posts 7. The two first conductive posts 7 can be electrically connected to the annular positive electrode 19 and the annular negative electrode 20, respectively. Then, when the current of the annular positive electrode 19 enters the N-type semiconductor 24 or the P-type semiconductor 26 through the first conductive posts 7, the first conductive slider 12, and the first wire 17, when the N-type semiconductor 24 is connected to the positive pole, the current passes through the thermal conductive sheet 25 and the P-type semiconductor 26 and then returns to the annular negative electrode 20, the thermal conductive sheet 25 produces a cooling effect. Similarly, when the hot / cold adjustment dial 3 is rotated 180 degrees, when the P-type semiconductor 26 is connected to the positive pole, the current flows from the P-type semiconductor 26 to the N-type semiconductor 24, and the thermal conductive sheet 25 produces a heating effect.

[0044] Specifically, the bottom ends of the second conductive column 9 and the first conductive column 7 are fixedly connected with a conductive abutment joint 10, which is made of a flexible conductive material. The conductive abutment joint 10 makes the second conductive column 9, the first conductive column 7 more stable when electrically abutting against the annular positive electrode 19 and the annular negative electrode 20.

[0045] Specifically, conductive sheets 21 are fixedly connected to the side walls of the sealing layer 23 and the side walls of the filling cavity, and electrorheological fluid 22 is filled between the two conductive sheets 21. An insulating layer is provided on the conductive sheet 21, and the conductive sheet 21 is made of flexible conductive material. The side walls of the two conductive sheets 21 are respectively electrically connected to the second wires 18, and the two second wires 18 extend into the connector 4 and are respectively electrically connected to the two second conductive sliders 11 through the two second mounting grooves 13; when the hardening adjustment dial 6 is rotated, the two second conductive sliders 11 abut against the second conductive column 9, so that the two second conductive columns 9 contact the annular positive electrode 19 or the annular negative electrode 20, and an electric field is generated between the two conductive sheets 21. The viscosity of the electrorheological fluid 22 increases under the action of the electric field, thereby increasing the hardness of the memory alloy support rod 5. Two card slots 8 are provided on the surface of the hardening adjustment dial 6. When the two second conductive sliders 11 abut against the two card slots 8, the second conductive column 9 is de-energized, the electrorheological fluid 22 returns to its original state, and the support rod hardness is reduced.

[0046] The working principle of the present invention is:

[0047] First, as Figure 1 Insert the straight-line memory alloy rod 5 into the anal surgical site. Then, by rotating the hot / cold adjustment dial 3, the two first conductive posts 7 contact the annular positive electrode 19 or the annular negative electrode 20, thereby changing the direction of the current in the semiconductor hot / cold structure. When the N-type semiconductor 24 is connected to the positive electrode, a cooling effect is generated; when the P-type semiconductor 26 is connected to the positive electrode, a heating effect is generated. Therefore, the memory alloy rod 5 can be heated to over 37°C. Due to the temperature change, the memory alloy rod 5 unfolds into a spiral shape, with the top diameter smaller than the bottom diameter, to adapt to the physiological structure of the anus and surrounding tissues, achieving natural expansion.

[0048] When the alloy rod 5 is in the anus Figure 2 After the expansion is shown, the hardening adjustment dial 6 is rotated to make the two second conductive posts 9 contact the annular positive electrode 19 or the annular negative electrode 20, and the conductive sheet 21 is energized. An electric field is generated between the two conductive sheets 21, and the viscosity of the electrorheological fluid 22 increases under the action of the electric field, thereby increasing the hardness of the memory alloy support rod 5;

[0049] When the operation is over, the hardening adjustment dial 6 is rotated so that the second conductive column 9 is powered off, the electrorheological fluid 22 returns to its original state, and the hardness of the support rod is reduced. Then, the hot and cold adjustment dial 3 is rotated so that the N-type semiconductor 24 is connected to the positive electrode, and then the memory alloy support rod 5 is powered on and cooled to below 10°C, so that the memory alloy support rod 5 returns to the contracted linear state, which is convenient for quick removal. Finally, the device is cleaned and disinfected for next use.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A reusable anal surgical dilator device, comprising a handle box (1), characterized in that: The handle box (1) is fixedly connected to a DC power supply (27) inside, and an annular negative electrode (20) and an annular positive electrode (19) are provided on the top of the DC power supply (27). The top of the handle box (1) is fixedly connected to a fixed disk (2), and the top of the fixed disk (2) is fixedly connected to a connector (4), and the top of the connector (4) is fixedly connected to a memory alloy support rod (5); Two circular grooves are provided on the side wall of the fixed disk (2), and a hardening adjustment dial (6) and a hot / cold adjustment dial (3) are rotatably connected in the two circular grooves. Two first conductive posts (7) are fixedly connected through the hot / cold adjustment dial (3), and the lower ends of the two first conductive posts (7) are respectively in active contact with the annular negative electrode (20) and the annular positive electrode (19). Two second conductive posts (9) are fixedly connected through the hardening adjustment dial (6), and the bottom ends of the two second conductive posts (9) are respectively in active contact with the annular negative electrode (20) and the annular positive electrode (19). An electrical contact device is provided in the connector (4); The memory alloy support rod (5) is made of a superelastic and shape-memory nickel-titanium alloy, and the surface of the memory alloy support rod (5) is coated with a shape-memory polymer layer; A filling cavity is provided in the memory alloy support rod (5), a sealing layer (23) is fixedly connected to one side of the filling cavity, the sealing layer (23) is made of a flexible heat-conducting insulating material, a plurality of semiconductor hot and cold structures are embedded in the sealing layer (23) at equal intervals, and the plurality of semiconductor hot and cold structures are electrically connected to the two second conductive sliders (11); Conductive sheets (21) are fixedly connected to the side walls of the sealing adhesive layer (23) and the side walls of the filling cavity, an electrorheological fluid (22) is filled between the two conductive sheets (21), an insulating layer is provided on the conductive sheet (21), the conductive sheet (21) is made of a flexible conductive material, the side walls of the two conductive sheets (21) are respectively electrically connected to second wires (18), and the two second wires (18) extend into the connector (4) and are respectively electrically connected to the two second conductive sliders (11) through the two second mounting grooves (13).

2. The reusable anal surgical distraction device according to claim 1, characterized in that: The memory alloy support rod (5) expands in a spiral shape at a temperature greater than 37°C and contracts in a linear shape at a temperature less than 10°C.

3. The reusable anal surgical distraction device according to claim 2, characterized in that: The top diameter of the spiral shape of the memory alloy support rod (5) is smaller than the bottom diameter.

4. The reusable anal surgical distraction device according to claim 3, characterized in that: The electrical abutment device comprises two second mounting grooves (13) and two first mounting grooves (15) provided on the bottom side of the connector (4); second conductive sliders (11) are slidably connected in the two second mounting grooves (13); a second spring (14) is fixedly connected between each second conductive slider (11) and the bottom side wall of the second mounting groove (13); first conductive sliders (12) are slidably connected in the two first mounting grooves (15); a first spring (16) is fixedly connected between each first conductive slider (12) and the bottom side wall of the first mounting groove (15); the two first conductive sliders (12) are movably electrically connected to the two second conductive posts (9) respectively, and the two first conductive sliders (12) are movably electrically connected to the two first conductive posts (7) respectively.

5. The reusable anal surgical dilator according to claim 4, characterized in that: Each semiconductor hot and cold structure includes an N-type semiconductor (24) and a P-type semiconductor (26); a heat conducting plate (25) is fixedly connected between the two N-type semiconductors (24) and the N-type semiconductor (24); a first wire (17) is electrically connected to a plurality of the N-type semiconductors (24); another first wire (17) is electrically connected to a plurality of the P-type semiconductors (26); and both of the two first wires (17) extend into the connector (4) and are electrically connected to the two first conductive sliders (12) through the two first mounting grooves (15).

6. The reusable anal surgical dilator according to claim 5, characterized in that: The bottom ends of the second conductive slider (11) and the first conductive slider (12) are both provided with hemispherical bumps, and the tops of the second conductive column (9) and the first conductive column (7) are provided with hemispherical grooves that match the shape of the hemispherical bumps.

7. The reusable anal surgical distraction device according to claim 6, characterized in that: The bottom ends of the second conductive column (9) and the first conductive column (7) are both fixedly connected to a conductive abutment joint (10), and the conductive abutment joint (10) is made of a flexible conductive material. The conductive abutment joint (10) makes the second conductive column (9), the first conductive column (7), the annular positive electrode (19) and the annular negative electrode (20) more stable when electrically abutting.

8. The reusable anal surgical dilator according to claim 7, characterized in that: Two slots (8) are provided on the surface of the hardening adjustment dial (6). When the second conductive slider (11) is pressed against the two slots (8), the second conductive slider (11) is in a power-off state.

9. The reusable anal surgical distraction device according to claim 8, characterized in that: The shape memory polymer layer is made of temperature-sensitive polycaprolactone.

10. The reusable anal surgical dilator according to claim 9, characterized in that: The connector (4), the hardened adjustment dial (6), and the handle box (1) are all made of insulating materials.

Images