Respiration guiding device used in liver cancer three-dimensional conformal radiotherapy process

Abstract

The invention discloses a respiration guiding device used in a liver cancer three-dimensional conformal radiotherapy process, the respiration guiding device comprises a guiding device, the guiding device comprises a guiding block, a nasal plug block, a nasal tube, a guiding groove, a supporting sheet and a fitting groove, the fitting groove is formed in the inner side of the guiding block, the guiding groove is arranged on one side of the guiding block in a penetrating mode, and the supporting sheet is arranged in the fitting groove. Clamping grooves are formed in the two ends of the guide groove, the supporting piece is detachably connected with the clamping grooves, the nasal tube penetrates through the guide groove, the nasal tube horizontally penetrates through the two ends of the nasal plug block, the guide block transmits the situation that in-vivo air pressure of a patient is increased in the radiotherapy process, so that the thoracic cavity is expanded to the nasal tube, and the oxygen delivery amount entering the body of the patient is finely adjusted; meanwhile, air pressure is balanced under the action of the air pressure balancer to prevent the air pressure in the body from being too small.

Description

Technical Field

[0001] The present invention relates to the technical field of respiratory guidance, and particularly relates to a respiratory guidance device for use during three-dimensional conformal radiotherapy of liver cancer. Background Art

[0002] As one of the common malignant tumors, liver cancer has various treatment methods, among which radiotherapy is an important part. Due to its characteristics of high precision and personalized treatment, three-dimensional conformal radiotherapy technology has been widely used in the treatment of liver cancer.

[0003] Three-dimensional conformal radiotherapy (3DCRT) of liver cancer is a high-precision radiotherapy technology aimed at maximizing the irradiation dose of the tumor area while reducing the damage to surrounding normal tissues.

[0004] During the three-dimensional conformal radiotherapy of liver cancer, it is easy for the positions of abdominal organs such as the liver to change due to breathing, affecting the accuracy of radiotherapy. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the present invention provides a respiratory guidance device for use during three-dimensional conformal radiotherapy of liver cancer.

[0007] (II) Technical Solutions

[0008] For the above purpose, the above technical object of the present invention is achieved through the following technical solutions: A respiratory guidance device for use during three-dimensional conformal radiotherapy of liver cancer, including a guiding device, the guiding device includes a guiding block, a nasal plug block, a nasal tube, a guiding groove, a support piece and a fitting groove, the fitting groove is opened on the inner side of the guiding block, the guiding groove penetrates through one side of the guiding block, clamping grooves are opened at both ends of the guiding groove, the support piece is detachably connected to the clamping groove, the nasal tube passes through the guiding groove, and the nasal tube horizontally penetrates through both ends of the nasal plug block.

[0009] Preferably, the nasal plug block includes a block main body, a nostril groove, a support column and a pressure balancer, the nostril groove is opened on one side of the block main body, the support column is fixedly connected to the nostril groove, a fixing groove is opened in the support column, the fixing groove is fixedly connected to the nasal tube, and the pressure balancer is connected to the nasal tube.

[0010] Preferably, the pressure balancer includes a connecting tube, a balancer main body, a sealing elastic membrane and a balance ball, the balancer main body is in the shape of a hollow hemisphere, the balancer main body is fixedly connected to the top of the nasal plug block, the connecting tube connects the balancer main body and the nasal tube in the fixing groove, the sealing elastic membrane is fixedly connected to the inner side of the balancer main body, and the balance ball is located on the surface of the sealing elastic membrane.

[0011] Preferably, a sealing block is fixedly connected to the inner wall of the balancer body. The sealing block is fixedly connected to the sealing elastic membrane. A medicine inlet is formed in the center of the sealing block. A rubber sealing plug is fixedly connected in the medicine inlet. A sealing film is fixedly connected to the bottom of the sealing block. The sealing film is in a P shape, and the vertical part of the sealing film is fixedly connected to the bottom of the sealing block.

[0012] Preferably, a support rod is fixedly connected to one side of the guiding block. A positioning groove is formed in the center of the support rod. A positioning rod is slidably connected in the positioning groove. A baffle is fixedly connected to one side of the positioning rod. A rotating rod is rotatably connected to the inner side of the baffle. An expansion rod is fixedly connected to one side of the rotating rod. A clamping groove is formed at the top of the support rod, and the clamping groove is located above the positioning groove. The expansion rod is detachably connected to the clamping groove.

[0013] Preferably, an oxygen cylinder is fixedly connected to the side of the nasal tube away from the nasal plug block.

[0014] Preferably, a strap is fixedly connected to the bottom of the guiding block. A hanging ring is slidably connected to one side of the strap. The hanging ring includes a ring body and an elastic hook. The strap is located between the ring body and the elastic hook, and the nasal tube passes through the ring body.

[0015] Preferably, support protrusions are fixedly connected to the parts of the nasal tube located in the guiding groove and the ring body. The support protrusions are in a frustum shape, and the support protrusions are offset from each other.

[0016] (III) Advantageous Effects

[0017] The present invention provides a breathing guiding device for use in the three-dimensional conformal radiotherapy of liver cancer, having the following advantageous effects:

[0018] 1. The guiding block transmits the expansion of the chest cavity caused by the increase in the internal air pressure of the patient during radiotherapy to the nasal tube, and finely adjusts the oxygen input amount into the patient's body; at the same time, the air pressure is balanced under the action of the air pressure balancer to prevent the internal air pressure from being too small. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of an embodiment of the invention;

[0020] Figure 2 is Figure 1 the enlarged view of area A in

[0021] Figure 3 is Figure 1 the enlarged view of area B in

[0022] Figure 4 is the installation schematic diagram of the hanging ring;

[0023] Figure 5 is the side view of the guiding block;

[0024] Figure 6 Schematic diagram for the installation of the sealing film;

[0025] Figure 7 Schematic diagram for the installation of the supporting protrusion;

[0026] Reference numerals: 1, guiding device; 2, guiding block; 3, nasal plug block; 4, nasal tube; 5, guiding groove; 6, supporting piece; 7, block body; 8, nostril groove; 9, supporting column; 10, connecting tube; 11, balancer body; 12, sealing elastic film; 13, balancing ball; 15, sealing block; 16, medicine inlet; 17, rubber sealing plug; 18, sealing film; 19, supporting rod; 20, positioning rod; 21, baffle; 22, rotating rod; 23, telescopic rod; 25, strap; 26, suspension ring; 27, supporting protrusion. Detailed implementation manners

[0027] The following description is only a preferred implementation manner of the present invention, and the protection scope is not limited to this embodiment. All technical solutions falling within the idea of the present invention shall belong to the protection scope of the present invention. At the same time, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

[0028] As shown in the figure, a breathing guiding device for use in the three-dimensional conformal radiotherapy of liver cancer includes a guiding device 1.

[0029] The guide device 1 includes a guide block 2, a nasal plug block 3, a nasal tube 4, a guide groove 5, a support sheet 6 and a fitting groove. The fitting groove is provided on the inner side of the guide block 2, the guide groove 5 is provided on one side of the guide block 2, a clamping groove is provided at both ends of the guide groove 5, the support sheet 6 is detachably connected to the clamping groove, the nasal tube 4 passes through the guide groove 5, and the nasal tube 4 is horizontally provided at both ends of the nasal plug block 3. The nasal plug block 3 includes a block body 7, a nostril groove 8, a support column 9 and an air pressure balancer. The nostril groove 8 is provided on one side of the block body 7, the support column 9 is fixedly connected to the nostril groove 8, a fixing groove is provided in the support column 9, the fixing groove is fixedly connected to the nasal tube 4, and the air pressure balancer is connected to the nasal tube 4. An oxygen cylinder is fixedly connected to the nasal tube 4 away from the nasal plug block 3. The nasal tube 4 is located in the guide groove 5 and the inner part of the ring body and is fixedly connected with a support protrusion 27, the support protrusion 27 is truncated, and the support protrusions 27 are misaligned. After placing the patient with the nasal tube 4 on the radiotherapy bed, place the support sheet 6 in the fitting groove and the guide block 2 on both sides of the patient's chest, and use the strap 25 to restrain the patient's abdomen. The positioning rod 20 slides out of the positioning groove so that one end of the baffle 21 is against the bed guardrail, and the telescopic rod 23 is extended and inserted into the card slot to perform preliminary positioning of the patient who needs radiotherapy. After the patient's breathing is stable, the support sheet 6 is removed, and the nasal tube 4 passes through the guide groove 5 and the ring body, and is connected to the oxygen cylinder to form an air pressure balance with the body. When the air pressure in the body is too high to expand the chest cavity, the chest cavity squeezes the guide block 2, and the guide block 2 squeezes the internal nasal tube 4, resulting in a decrease in air intake and balancing the air pressure.

[0030] The air pressure balancer includes a connecting tube 10, a balancer body 11, a sealing elastic membrane 12 and a balancing ball 13. The balancer body 11 is a hollow hemispherical body. The balancer body 11 is fixedly connected to the top of the nasal plug block 3. The connecting tube 10 connects the balancer body 11 and the nasal tube 4 in the fixed groove. The sealing elastic membrane 12 is fixedly connected to the inner side of the balancer body 11. The balancing ball 13 is located on the surface of the sealing elastic membrane 12. A sealing block 15 is fixedly connected to the inner wall of the balancer body 11. The sealing block 15 is fixedly connected to the sealing elastic membrane 12. A drug inlet 16 is opened in the center of the sealing block 15. A rubber sealing plug 17 is fixedly connected to the drug inlet 16. A sealing film 18 is fixedly connected to the bottom of the sealing block 15. The sealing film 18 is P-shaped, and the vertical part of the sealing film 18 is fixedly connected to the bottom of the sealing block 15. When the air pressure is balanced, the sealing elastic mold is propped up, and the balance is maintained by placing the balancing ball 13. When the internal air pressure is too low, the balancing ball 13 squeezes the sealing elastic membrane 12 to pressurize the body, realizing automatic pressure replenishment. At the same time, it is convenient to observe the changes in the internal air pressure and understand the patient's condition. The needle is inserted into the banana sealing plug to replenish the medicine, which is convenient for administering the medicine through the nose.

[0031] One side of the guiding block 2 is fixedly connected with a support rod 19. A positioning groove is formed in the center of the support rod 19. A positioning rod 20 is slidably connected in the positioning groove. One side of the positioning rod 20 is fixedly connected with a baffle 21. A rotating rod 22 is rotatably connected inside the baffle 21. One side of the rotating rod 22 is fixedly connected with a telescopic rod 23. A clamping groove is formed at the top of the support rod 19, and the clamping groove is located above the positioning groove. The telescopic rod 23 is detachably connected with the clamping groove.

[0032] The bottom of the guiding block 2 is fixedly connected with a strap 25. A hanging ring 26 is slidably connected to one side of the strap 25. The hanging ring 26 includes a ring body and an elastic hook. The strap 25 is located between the ring body and the elastic hook. The nasal tube 4 passes through the ring body.

[0033] Working principle: After placing the patient with the nasal tube 4 inserted on the radiotherapy bed, place the guiding block 2 in the fitting groove on the support piece 6 on both sides of the patient's chest cavity, and use the strap 25 to bind the patient's abdomen. The positioning rod 20 slides out of the positioning groove so that one end of the baffle 21 abuts against the guardrail of the hospital bed. After the telescopic rod 23 extends, it is clamped into the clamping groove to perform preliminary positioning on the patient who needs radiotherapy. After the patient's breathing is stable, remove the support piece 6. The nasal tube 4 passes through the guiding groove 5 and the ring body. After connecting the oxygen cylinder, an air pressure balance is formed with the inside of the body. When the air pressure in the body is too large and expands the chest cavity, the chest cavity squeezes the guiding block 2, and the guiding block 2 squeezes the internal nasal tube 4, resulting in a decrease in the intake of oxygen, thus balancing the air pressure.

[0034] When the air pressure is balanced, the sealed elastic mold is propped up, and the balance is maintained by placing the balance ball 13. When the air pressure in the body is too small, the balance ball 13 squeezes the sealed elastic membrane 12 to pressurize the inside of the body, realizing automatic pressure compensation. At the same time, it is convenient to observe the change of the air pressure in the body and understand the patient's condition. Insert the needle into the banana-shaped sealing plug to replenish the medicine, which is convenient for administering medicine through the nose.

[0035] To sum up, through the guiding block 2, the increase in the air pressure in the patient's body during radiotherapy is transmitted to the nasal tube 4, fine-tuning the oxygen intake into the patient's body; at the same time, the air pressure is balanced under the action of the air pressure balancer to prevent the air pressure in the body from being too small.

Claims

1. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer, comprising a guidance device (1), characterized in that: The guiding device (1) comprises a guiding block (2), a nasal obstruction block (3), a nasal tube (4), a guiding groove (5), a supporting sheet (6) and a fitting groove, wherein the fitting groove is arranged on the inner side of the guiding block (2), the guiding groove (5) is arranged through one side of the guiding block (2), the two ends of the guiding groove (5) are provided with a clamping groove, the supporting sheet (6) is detachably connected to the clamping groove, the nasal tube (4) passes through the guiding groove (5), and the nasal tube (4) is horizontally arranged through the two ends of the nasal obstruction block (3).

2. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 1, characterized in that: The nasal block (3) comprises a block body (7), a nasal groove (8), a support column (9) and an air pressure balancer, wherein the nasal groove (8) is provided on one side of the block body (7), the support column (9) is fixedly connected to the nasal groove (8), a fixing groove is provided in the support column (9), the fixing groove is fixedly connected to the nasal tube (4), and the air pressure balancer is connected to the nasal tube (4).

3. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 2, characterized in that: The air pressure balancer comprises a connecting tube (10), a balancer body (11), a sealing elastic membrane (12) and a balancing ball (13); the balancer body (11) is a hollow hemispherical body; the balancer body (11) is fixedly connected to the top of a nasal plug block (3); the connecting tube (10) connects the balancer body (11) and a nasal tube (4) in a fixing groove; the sealing elastic membrane (12) is fixedly connected to the inner side of the balancer body (11); and the balancing ball (13) is located on the surface of the sealing elastic membrane (12).

4. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 3, characterized in that: A sealing block (15) is fixedly connected to the inner wall of the balancer body (11), and the sealing block (15) is fixedly connected to the sealing elastic membrane (12). A drug inlet (16) is provided at the center of the sealing block (15), and a rubber sealing plug (17) is fixedly connected to the drug inlet (16). A sealing film (18) is fixedly connected to the bottom of the sealing block (15), and the sealing film (18) is P-shaped. The vertical portion of the sealing film (18) is fixedly connected to the bottom of the sealing block (15).

5. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 4, characterized in that: A support rod (19) is fixedly connected to one side of the guide block (2), a positioning groove is provided at the center of the support rod (19), a positioning rod (20) is slidably connected in the positioning groove, a baffle (21) is fixedly connected to one side of the positioning rod (20), a rotating rod (22) is rotatably connected to the inner side of the baffle (21), a telescopic rod (23) is fixedly connected to one side of the rotating rod (22), a clamping groove is provided at the top of the support rod (19), the clamping groove is located above the positioning groove, and the telescopic rod (23) is detachably connected to the clamping groove.

6. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 5, characterized in that: The side of the nasal tube (4) away from the nasal obstruction block (3) is fixedly connected to an oxygen cylinder.

7. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 6, characterized in that: The bottom of the guide block (2) is fixedly connected with a strap (25), one side of the strap (25) is slidably connected with a suspension ring (26), the suspension ring (26) comprises a ring body and an elastic hook, the strap (25) is located between the ring body and the elastic hook, and the nasal tube (4) passes through the ring body.

8. A breathing guidance device for use in three-dimensional conformal radiotherapy of liver cancer according to claim 7, characterized in that: The nose tube (4) is located in the guide groove (5) and is fixedly connected to the inner part of the ring body with a support protrusion (27), the support protrusion (27) is in a truncated cone shape, and the support protrusions (27) are staggered.

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