Device for changing positions of organs

Abstract

The utility model discloses a device for changing the position of an organ, which relates to the field of medical instruments and comprises a filling expansion component and a medium inflow pipe. The filling expansion assembly can be expanded by an injected medium and is provided with a hard insertion part; one end of the medium inflow pipe is directly or indirectly communicated with the interior of the filling expansion assembly, and the other end of the medium inflow pipe is a medium inlet end used for injecting a medium into the filling expansion assembly; and a control assembly for controlling the flowing state of the medium is arranged on the pipe body between the medium inlet end and the filling expansion assembly. The device can be placed in an organ beside an organ capable of pushing a focus, so that the target organ is pushed to the abdomen, the position of the target organ is changed, the focus part can be close to the abdominal wall at the optimal position so as to facilitate construction of a sound channel, treatment is facilitated, and meanwhile adverse reactions of a patient in an operation can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a device for changing the position of an organ. Background Art

[0002] In many surgeries, there are surgeries that require changing the position of an organ before the surgical operation can be carried out; for example, in focused ultrasound ablation surgery (FUAS), ultrasound passes through the abdominal wall and focuses in the body, using the instantaneous high temperature at the focus to ablate the lesion to achieve the purpose of coagulative necrosis. In FUAS, it is necessary to change the position of the target organ so that the lesion position of the target organ is within the focus range, and at the same time, push the intestine outside the sound channel to construct a safe sound channel before performing the surgery; for example, in the focused ultrasound surgery for the lower abdomen and pelvis, by continuously filling the bladder and changing the shape of the bladder, the position of the target organ (such as the uterus) around it is changed, so as to facilitate FUAS.

[0003] At present, there are many ways to change the position of an organ. For example, in the focused ultrasound surgery for the lower abdomen and perineum, usually measures such as asking the patient to drink more water and hold urine are taken to make the bladder full. The full bladder can push the surrounding organs, thus changing the position of the organs; however, in the actual implementation of the surgery, due to the differences in the abdominal wall thickness, lesion position, and bladder deformability of different patients, the image quality of the ultrasound display of the deep lesions of different patients will be different, that is, some patients are prone to situations such as unclear image display and the focus depth not reaching the lesion, resulting in these patients being unable to receive this treatment.

[0004] For another example, in the paper "Intrarectal Foley catheter-assisted high-intensity focused ultrasound ablation for benign uterine diseases beyond the treatment region" published in the *International Journal of Hyperthermia* in June 2023, the disclosed solution is to insert a catheter into the rectum and fill the catheter with degassed cold water to support the rectum, so that the rectum is filled to change the position of the organ with lesions. In actual operation, the effect of pushing the organ in this way is not good, that is, the lesion position of the organ is still outside the treatment range of ultrasound. Therefore, the researchers of this solution will further insert 3 catheters with water sacs into the rectum and fill the water sacs with degassed cold water through the catheters to fill the rectum and cooperate to adjust the position of the organ. In this method, since the catheter material is soft, the rectum is usually in a closed state, and the shape of the rectum is curved, it is difficult for the catheter to enter the rectum. And it requires the cooperation of three catheters with water sacs to achieve accurate position adjustment. In addition, in this solution, the balloon is filled with 30-120 ml of degassed water until the treatment area enters the HIFU treatment range, but the actual average water filling is 50 ml, and the balloon is prone to rupture if it exceeds this amount. Even if the catheter is placed in the appropriate position, the best distance for the uterus position to change with 50 ml of water filling is 22.5 mm. Beyond this range, effective position change cannot be achieved.

[0005] For another example, in the paper "Pretreatment bowel manipulation during ultrasound-guided high-intensity focused ultrasound therapy for posterior wall uterine masses." published in September 2021, it discloses inserting a catheter with a water sac into the rectum and injecting water into the water sac through the catheter with a syringe to achieve the purpose of dilating the rectum. In this solution, the patient needs to be in a supine position to perform, while FUAS requires the patient to be in a prone position. Secondly, the purpose of dilating the rectum is to relieve the pain of the patient during the treatment, rather than changing the position of the organ with local lesions in FUAS, and the injection volume of the syringe is small, making it difficult to achieve the purpose of dilating the rectum to change the organ position.

[0006] Moreover, in the solutions disclosed in the above two papers, although degassed water is injected in both cases, the gas in the catheter or urethral catheter is not removed. When the degassed water is filled, the water will push the gas in the catheter or urethral catheter into the water sac, resulting in the presence of gas in the water sac. The gas will affect the quality of the ultrasonic display of the lesion, thus affecting the progress of the operation.

[0007] In summary, although there are some solutions in the art that can push organs so that the lesion positions on the organs enter the ultrasonic focusing treatment area, the operations are complex and the effects are not good. Therefore, further research and development of the solutions are needed. Utility Model Content

[0008] The purpose of the present utility model is to provide a device for changing the position of an organ in view of the above problems. The device can be inserted into an organ beside the lesion-pushing organ (such as inserted into the patient's rectal part), so as to push the target organ (such as organs like the uterus and prostate in front of the rectum) towards the abdomen, change the position of the target organ, and enable the lesion site to be closest to the abdominal wall in the optimal position for facilitating the construction of the acoustic channel, which is convenient for treatment and can also reduce the occurrence of adverse reactions during the operation for the patient.

[0009] The technical solution adopted by the present utility model is as follows: A device for changing the position of an organ includes a filling and expanding assembly and a medium inflow tube; wherein:

[0010] The filling and expanding assembly can be injected with a medium to expand and has a rigid insertion part;

[0011] The medium inflow tube has one end directly or indirectly connected to the inside of the filling and expanding assembly, and the other end is a medium inlet end for injecting the medium into the filling and expanding assembly;

[0012] A control assembly for controlling the flow state of the medium is provided on the tube body between the medium inlet end and the filling and expanding assembly.

[0013] Further, the medium inlet end is connected with a medium storage assembly.

[0014] Further, the filling and expanding assembly includes an insertion tube and an expansion sac. The insertion tube serves as the insertion part, and the expansion sac is wrapped around the insertion tube and sealed with the insertion tube; a plurality of flow holes communicating with the inside of the expansion sac are provided on the insertion tube; the inlet of the insertion tube is directly or indirectly connected to the medium inflow tube.

[0015] Further, a medium outflow tube is also included;

[0016] One end of the medium outflow tube is directly or indirectly connected to the inside of the filling and expanding assembly or the insertion tube, and the other end is a medium outlet end for discharging the medium in the filling and expanding assembly; a medium collection assembly is connected at the medium outlet end;

[0017] A control assembly for controlling the outflow state of the medium is provided on the tube body between the medium outlet end and the filling and expanding assembly.

[0018] Further, both the medium inflow tube and the medium outflow tube are connected to one end of the main tube, and the other end of the main tube is connected to the filling and expanding assembly.

[0019] Further, the control assembly includes a three-way valve and a main control valve. The medium inflow tube and the medium outflow tube are connected to the main tube through the three-way valve; the main control valve is provided on the main tube.

[0020] Further, the front end face of the insertion tube is spherical.

[0021] Further, the expansion bladder is a sac-like structure made of a medical elastic material.

[0022] Further, it further includes a pressure detection assembly for detecting the internal pressure of the filling and expanding assembly.

[0023] Further, a transparent observation bladder is provided on the medium inflow tube.

[0024] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0025] 1. The present utility model uses the filling and expanding assembly to be inserted into an organ beside the diseased organ (such as inserted into the rectum of a patient), and then injects physiological saline into the filling and expanding assembly, so that the volume of the filling and expanding assembly expands, fills the inside of the patient's rectum, and causes a certain push on the diseased organ in front of the rectum, thereby changing the position of the organ and making the diseased organ closer to the abdominal wall to facilitate the construction of the sound channel;

[0026] 2. The present utility model can adjust the water injection volume in the filling and expanding assembly according to the actual conditions such as the conditions of different patients, control the volume of the filling and expanding assembly after expansion, is more conducive to treatment, and can also reduce the occurrence of adverse reactions during the operation of patients and improve the treatment experience of patients;

[0027] 3. When using the present utility model to change the position of the diseased organ, it is not necessary for the patient to exercise the bladder by himself to change the compliance of the bladder muscle, and further other problems caused by improper exercise can be avoided;

[0028] 4. When inserting the filling and expanding assembly of the present utility model, the air in the tube and the filling and expanding assembly can be discharged, so that there is no gas in the filling and expanding assembly after expansion, thereby avoiding the influence of gas on the quality of ultrasonic display of the diseased focus and ensuring clear display of the diseased focus;

[0029] 5. The filling and expanding assembly of the present utility model has a rigid insertion part, which is convenient for inserting into the organ to be inserted (such as the rectum). BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present utility model will be described by way of examples with reference to the accompanying drawings, wherein:

[0031] Figure 1 is a schematic structural diagram of the first type of the present utility model;

[0032] Figure 2 is a schematic structural diagram of the second type of the present utility model;

[0033] Figure 3 is a schematic structural diagram of the third type of the present utility model;

[0034] Figure 4 is a schematic structural diagram of the fourth type of the present utility model;

[0035] Figure 5 is an anatomical diagram of human abdominal cavity organs;

[0036] Figure 6 is an example diagram of abdominal cavity ultrasound image in the test example of the present application;

[0037] Figure 7 is another example diagram of abdominal cavity ultrasound image in the test example of the present application;

[0038] Markings in the figures: 1 - Filling and expanding assembly; 11 - Insertion tube; 12 - Expansion bladder; 2 - Medium inflow tube; 3 - Valve; 4 - Medium storage assembly; 5 - Observation bladder; 6 - Pressure detection assembly; 7 - Medium outflow tube; 71 - Medium collection assembly; 8 - Main flow tube; 81 - Main control valve; 82 - Three-way valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] In addition, terms such as "horizontal" and "vertical" in the description of the present utility model do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0041] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "arranged", "installed", "connected", and "coupled" are used, they should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components.

[0042] Embodiment 1

[0043] As Figures 1-7 shown, a device for changing the position of an organ includes a filling and expanding assembly 1 and a medium inflow tube 2; wherein:

[0044] The filling and expanding assembly 1 is used to be placed into an organ adjacent to the diseased organ (such as being placed into the rectum, and the expansion of the rectum can push the diseased organ (such as the uterus) around it, so that the position of the diseased organ changes); specifically, the filling and expanding assembly 1 can be injected with a medium, and after receiving the medium, the filling and expanding assembly 1 expands, thereby expanding the organ into which it is placed (such as expanding the rectum); the filling and expanding assembly 1 has a rigid insertion part, which is convenient for being placed into the organ to be placed, such as being placed into the rectum, and is not affected by the closed and curved shape of the rectum.

[0045] In this embodiment, according to actual needs, the material of the medium can be selected, and fluids such as gas and water can be selected as the medium; for FUAS, the preferred medium is normal saline at 36°C; the advantage of using normal saline is that "even if the filling and expanding assembly 1 ruptures in the organ (such as the rectum) into which it is placed, the leakage of the medium will not affect the internal physiological environment of the organ into which it is placed"; in addition, the gas content in the normal saline at this temperature is reduced compared with that at normal temperature, and it is close to normal body temperature, and it is not easy to cause muscle contraction and spasm, and the patient experience is good.

[0046] In this embodiment, as Figure 1 shown, there is a medium inflow tube 2, one end of the medium inflow tube 2 is directly or indirectly (such as the main flow tube 8 in the following text) connected to the inside of the filling and expanding assembly 1, and the other end is the medium inlet end for injecting the medium into the filling and expanding assembly 1; a control assembly for controlling the flow state of the medium is arranged on the tube body between the medium inlet end and the filling and expanding assembly 1, that is, the control assembly can be arranged on the medium inflow tube 2 or on other tubes (such as the main flow tube 8 in the following text).

[0047] In this embodiment, the control assembly is a valve 3.

[0048] In this embodiment, taking the example that the medium inflow tube 2 is directly connected to the inside of the filling and expanding assembly 1, the using process includes the following several processes.

[0049] Exhaust process: Open valve 3, and continuously let the medium flow in from the medium inlet end. The medium flows into the filling and expanding component 1 through the medium inlet pipe 2. The gas is pushed by the medium into the filling and expanding component, accumulates in the filling and expanding component 1, and the position where the gas accumulates is closer to the position where the medium inlet pipe 2 is directly or indirectly connected to the filling and expanding component 1 relative to the position of the medium in the filling and expanding component, until the medium no longer enters the filling and expanding component 1. At this time, there is gas and medium in the filling and expanding component 1, and when the air pressure of the gas is balanced with the pressure of the medium entering the filling and expanding component 1; then reduce the pressure of the medium entering the filling and expanding component 1 (such as making the height of the space where the medium inlet end is located lower than the height of the space where the filling and expanding component 1 is located) or / and increase the pressure in the filling and expanding component 1 (such as squeezing the filling and expanding component 1), so that the gas in the filling and expanding component 1 is preferentially discharged until the filling and expanding component is in a compressed state and only the medium exists in it. Then close valve 3 to prevent air from entering again and facilitate its placement into the organ to be implanted later.

[0050] It should be noted that if the gas cannot be completely exhausted at one time, it can be done multiple times.

[0051] It should be noted that if air is used as the medium, such as in other non-FUAS surgeries, this exhaust process can be omitted.

[0052] Filling and expanding process: Place the already exhausted filling and expanding component 1 into the organ to be implanted, and open valve 3; let the medium flow in from the medium inlet end again. The medium enters the filling and expanding component 1 through the medium inlet pipe 2, causing the filling and expanding component 1 to fill and expand, thereby expanding the organ to be implanted. The organ to be implanted expands and pushes the diseased organ to change its position.

[0053] The process of adjusting the position of the diseased organ includes the process of increasing the degree of expansion of the organ to be implanted and the process of reducing the degree of expansion of the organ to be implanted.

[0054] Process of increasing the degree of expansion: Open valve 3; continue to let the medium flow in from the medium inlet end. The amount of medium in the filling and expanding component 1 increases, so the expansion amount of the filling and expanding component 1 becomes larger, the degree of expansion of the organ to be implanted increases, and thus the degree of pushing the diseased organ increases, and the degree of change in the position of the diseased organ increases.

[0055] Process of reducing the degree of expansion: Open valve 3; the medium in the filling and expanding component 1 flows out, the amount of medium in the filling and expanding component 1 decreases, so the expansion amount of the filling and expanding component 1 decreases, the degree of expansion of the organ to be implanted decreases, and thus the degree of pushing the diseased organ decreases, and the degree of change in the position of the diseased organ decreases.

[0056] Pressure holding process (i.e., the process of maintaining the position of the diseased organ after the position change): Close valve 3, and there is no inflow or outflow of the medium in the filling and expanding component 1, so that the filling and expanding component 1 is in a state of stable expansion amount, that is, pressure holding is carried out inside the filling and expanding component 1.

[0057] Process of removing the filling and expanding component 1 after treatment: Open valve 3. After completely discharging the medium in the filling and expanding component 1, the filling and expanding component 1 can be removed from the implanted organ.

[0058] It should be noted that during the process of reducing the degree of expansion or the process of removing the filling and expanding component 1 after treatment, there are many paths for the medium to flow out of the filling and expanding component 1. For example, it flows out of the filling and expanding component 1 after passing through the medium inflow pipe 2 and the medium inlet end, or flows out of the filling and expanding component 1 through other means (such as the medium outflow pipe 7 set below).

[0059] In summary, through the process described in this embodiment, the filling and expanding device can be implanted into the organ beside the diseased organ (diseased organ) that can be pushed (such as into the rectal part of the patient), so as to push the diseased organ (such as organs such as the uterus and prostate in front of the rectum) towards the abdomen, change the position of the diseased organ, and enable the diseased part to be closest to the abdominal wall in the optimal position for facilitating the construction of the acoustic channel, which is convenient for treatment and can also reduce the occurrence of adverse reactions during the operation of the patient.

[0060] Embodiment 2

[0061] On the basis of Embodiment 1, further specific implementation manners that can be implemented are proposed.

[0062] The medium inlet end is connected with a medium storage component 4, and the medium storage component 4 is such as a water storage bag.

[0063] In this embodiment, there are at least the following several implementation manners for the medium to flow out of the water storage bag and enter the filling and expanding component 1 through the medium inflow pipe 2.

[0064] The first implementation manner is to utilize the self-gravitational potential energy of the medium to enter the filling and expanding component 1; that is, when the medium needs to enter the filling and expanding component 1, only the spatial position where the medium storage component 4 is located needs to be raised, and the gravitational potential energy of the medium in the medium storage component 4 increases until the gravitational potential energy is greater than the pressure potential energy of the medium in the filling and expanding component 1, and then the medium in the medium storage component 4 can flow into the filling and expanding component 1.

[0065] For the first implementation manner, conversely, if it is necessary to make the medium in the filling and expanding component 1 flow out, that is, the spatial position where the medium storage component 4 is located can be lowered, and the gravitational potential energy of the medium in the medium storage component 4 decreases until the gravitational potential energy is less than the pressure potential energy of the medium in the filling and expanding component 1, and then the medium in the medium storage component 4 can flow into the filling and expanding component 1.

[0066] In the second implementation mode, an external force is used to send the medium into the filling and expanding component 1, such as squeezing the medium storage component 4, or adding a medium pump to the medium inflow pipe 2 (when the medium is a liquid, the medium pump can be a liquid pump, such as a water pump).

[0067] For the second implementation mode, conversely, if it is necessary to make the medium in the filling and expanding component 1 flow out, the medium can be pumped out from the filling and expanding component 1 by using a medium pump, or it can flow out naturally by using other methods (such as the medium outflow pipe 7 set below).

[0068] Example 3

[0069] On the basis of any one of the implementation modes in Examples 1-2, a further feasible specific implementation mode is proposed.

[0070] The filling and expanding component 1 includes an insertion tube 11 and an expansion bladder 12. The insertion tube 11 serves as an insertion part and can bring the expansion bladder 12 into the organ to be implanted; the expansion bladder 12 is coated on the insertion tube 11 and is sealed with the insertion tube 11 to prevent medium leakage and ensure the stability of the expansion of the expansion bladder 12; a plurality of flow holes communicating with the inside of the expansion bladder 12 are provided at the end of the insertion tube 11; the inlet of the insertion tube 11 is directly or indirectly connected to the medium inflow pipe 2, realizing the direct or indirect connection between the medium inflow pipe 2 and the filling and expanding component 1, that is, the medium flows from the medium inflow pipe 2 through the insertion tube 11 and then flows into the expansion bladder 12 through the flow holes.

[0071] The specific structure of the filling and expanding component 1 is further designed, and the following several feasible implementation modes are proposed.

[0072] In a feasible implementation mode, the front end face of the insertion tube 11 is spherical, and the spherical surface can smoothly open the organ opening of the organ to be implanted without damaging the inner wall of the organ; for example, when implanted into the rectum, the spherical surface can smoothly open the rectal opening, and because the spherical surface has no edges and corners, it will not scratch the inner wall of the rectum.

[0073] In a feasible implementation mode, the material of the expansion bladder 12 is a medical elastic material such as rubber, latex, polyurethane material, etc.; this material can make the expansion bladder 12 change its shape under the extrusion of the muscle layer of the organ to be implanted, that is, the expansion bladder 12 fits more closely to the inner wall of the organ to be implanted, so it will not excessively squeeze the organ to be implanted.

[0074] In a feasible implementation mode, for the case where the organ to be implanted is the rectum, the expansion bladder 12 is in a long strip shape after being filled with water and expanded, rather than the oval shape of the non-water bladder and the urinary catheter, which is more in line with the shape of the rectum; and the length of the expansion bladder 12 after being filled with the medium and expanded is 10-15 cm, the diameter should not exceed 5 cm, and the amount of the injected medium should not exceed 200 ml, so as to avoid excessive extrusion of the rectum and cause compressive injury.

[0075] A feasible implementation manner is that a lubricating oil layer is coated on the outer surface of the inflation bladder 12, and the material of the lubricating oil layer can be medical sterile paraffin oil or sterile lubricant, which facilitates the insertion of the inflation assembly 1 into the organ to be inserted.

[0076] Example 4

[0077] On the basis of any one of the implementation manners in Examples 1-3, a further feasible specific implementation manner is proposed.

[0078] The device for changing the position of the organ further includes a medium outflow pipe 7. In this embodiment, there are at least the following several implementation manners regarding the specific connection manner among the "inflation assembly 1, medium inflow pipe 2, and medium outflow pipe 7".

[0079] The first implementation manner is as Figure 2 shown. One end of the medium inflow pipe 2 is directly communicated with the inside of the inflation assembly 1 (insertion pipe 11), and the other end is the medium inlet end for injecting the medium into the inflation assembly 1; one end of the medium outflow pipe 7 is directly communicated with the inside of the inflation assembly 1 (insertion pipe 11), and the other end is the medium outlet end for discharging the medium in the inflation assembly 1; and valves 3 as control components are provided on both the medium inflow pipe 2 and the medium outflow pipe 7 to control the flow state of the medium such as the flow rate and flow velocity.

[0080] In this implementation manner, the use process includes the following several processes.

[0081] Exhaust process: It is necessary to place the inflation assembly 1 at a spatial position lower than the medium inlet end and the outlet end, that is, the height where the inflation assembly 1 is located is lower than the heights where the medium inlet end and the outlet end are located, and the tip of the insertion pipe 11 faces upward; open the valve 3 of the medium inflow pipe 2 and close the valve 3 on the medium outflow pipe 7, and continuously introduce the medium from the medium inlet end through the insertion pipe 11 into the inflation bladder 12. The gas in the inflation bladder 12 accumulates above the medium and is at the tip of the insertion pipe 11 (using the fact that the density of the gas is lower than that of the medium, and the medium preferentially occupies the space at the lower height, and the gas will be squeezed by the medium to a relatively higher spatial position); then close the valve 3 of the medium inflow pipe 2 and open the valve 3 of the medium outflow pipe, place the inflation assembly 1 at a spatial position higher than the medium inlet end and the outlet end, or / and squeeze the inflation bladder 12, and the gas in the inflation bladder 12 is preferentially discharged through the flow hole at the tip of the insertion pipe 11 and the medium outflow pipe 7, and then all the medium is discharged. At this time, the inflation bladder 11 is compressed and the inflation bladder 12, insertion pipe 11, medium inflow pipe 2, and medium outflow pipe 7 are filled with the medium and there is no gas; close the valve 3 to prevent air from entering again and facilitate its subsequent insertion into the organ to be inserted.

[0082] Filling and expanding process: Place the already evacuated filling and expanding assembly 1 into the organ to be implanted. Keep the valve 3 on the medium outflow tube 7 closed and open the valve 3 on the medium inflow tube 2. Then, let the medium flow in from the medium inlet end again. The medium passes through the medium inflow tube 2 and enters the filling and expanding assembly 1, causing the filling and expanding assembly 1 to fill and expand, thereby expanding the organ to be implanted. The organ to be implanted expands and pushes the diseased organ to change its position.

[0083] The process of adjusting the position of the diseased organ includes the process of increasing the degree of expansion of the organ to be implanted and the process of reducing the degree of expansion of the organ to be implanted.

[0084] Process of increasing the degree of expansion: Open the valve 3 on the medium inflow tube 2 while closing the valve 3 on the medium outflow tube 7. Continue to let the medium flow in from the medium inlet end. The amount of medium in the filling and expanding assembly 1 increases, so the expansion amount of the filling and expanding assembly 1 becomes larger. The degree of expansion of the organ to be implanted increases, and further, the degree of pushing the diseased organ increases, and the degree of position change of the diseased organ increases.

[0085] Process of reducing the degree of expansion: Close the valve 3 on the medium inflow tube 2 while opening the valve 3 on the medium outflow tube 7. The medium in the filling and expanding assembly 1 flows out through the medium outflow tube 7 from the medium outlet end. The amount of medium in the filling and expanding assembly 1 decreases, so the expansion amount of the filling and expanding assembly 1 decreases. The degree of expansion of the organ to be implanted decreases, and further, the degree of pushing the diseased organ decreases, and the degree of position change of the diseased organ decreases.

[0086] Pressure maintaining process (i.e., the process of maintaining the position of the diseased organ after the position change): Close the valves 3 on both the medium inflow tube 2 and the medium outflow tube 7 simultaneously. There is no inflow or outflow of medium in the filling and expanding assembly 1, so the filling and expanding assembly 1 is in a state of stable expansion amount, that is, the pressure is maintained inside the filling and expanding assembly 1.

[0087] Process of removing the filling and expanding assembly 1 after treatment: Close the valve 3 on the medium inflow tube 2 while opening the valve 3 on the medium outflow tube 7. After completely discharging the medium in the filling and expanding assembly 1 through the medium outflow tube 7 from the medium outlet end, the filling and expanding assembly 1 can be removed from the organ to be implanted.

[0088] The second embodiment is as Figure 4 shown. One end of both the medium inflow tube 2 and the medium outflow tube 7 is connected to one end of the main tube 8 through the corresponding valve 3. The other end of the main tube 8 is connected to the filling and expanding assembly 1. The other end of the medium inflow tube 2 serves as the medium inlet end for injecting medium into the filling and expanding assembly 1, and the other end of the medium outflow tube 7 serves as the medium outlet end for discharging the medium in the filling and expanding assembly 1. The corresponding valves 3 on the medium inflow tube 2 and the medium outflow tube 7 serve as the control components.

[0089] For the second implementation, its usage process is the same as that of the first implementation, and no further description will be given in this specification.

[0090] The third implementation is as Figure 3 shown. One end of the medium inflow pipe 2 and the medium outflow pipe 7 are both connected to one end of the main pipe 8 through a three-way valve 82, and the other end of the main pipe 8 is connected to the filling and expanding assembly 1 through a main control valve 81; the other end of the medium inflow pipe 2 serves as the medium inlet end for injecting the medium into the filling and expanding assembly 1, and the other end of the medium outflow pipe 7 serves as the medium outlet end for discharging the medium in the filling and expanding assembly 1; in this structure, the three-way valve 82 and the main control valve 81 serve as control components for controlling the flow state of the medium such as the flow rate and velocity.

[0091] For the second implementation, its usage process is similar to that of the first implementation, and the differences are as follows.

[0092] First, when the medium surface is higher than the main control valve 81 during the exhaust process and the filling and expanding assembly 1 is filled with the medium, it indicates that the gas in the pipe and the filling and expanding assembly 1 has been completely exhausted.

[0093] Second, the main control valve 81 needs to be opened whether the medium enters or exits the filling and expanding assembly 1.

[0094] In this embodiment, a waste medium collection assembly 71 is connected to the medium outlet end to collect waste liquid.

[0095] Embodiment 5

[0096] Based on any one of the implementations in Embodiments 1-3, a further feasible specific implementation is proposed.

[0097] A feasible implementation is that the device for changing the position of the organ further includes a pressure detection assembly 6 for detecting the internal pressure of the filling and expanding assembly 1. The pressure detection assembly 6 is widely used in medical devices and belongs to the technical features known to those skilled in the art, so the specific structure of the pressure detection assembly 6 will not be described in detail.

[0098] It should be noted that the pressure detection assembly 6 is installed on the pipe body between the control component (valve 3 or main control valve 81) and the filling and expanding assembly 1. By using the principle that the pressure of the fluid medium is equal everywhere in the same space, the medium pressure in the filling and expanding assembly 1 can be accurately obtained, providing important parameters for adjusting the position of the diseased organ.

[0099] A feasible implementation method is that a transparent observation bladder 5 is arranged on the medium inflow pipe 2. The position of the observation bladder 5 is preferably at a position close to the medium inlet end, that is, between the control component (valve 3 or three-way valve 82) and the medium inlet end, for observing the medium flow condition, and its material is a transparent material.

[0100] Test example

[0101] Taking the rectum as the implanted organ and adjusting the positions of the diseased organs such as the uterus and prostate in front of the rectum as an example.

[0102] As Figure 5 As shown, the relative positions of the bladder, uterus and rectum can be seen; after preoperative bowel cleansing, the intestinal contents are discharged and the intestine is in a closed state. Then, by using the device provided by the embodiment of the present utility model, the inside of the rectum can be filled, and the target organs such as the uterus or prostate in front of the rectum can be pushed towards the abdomen, so as to change their positions and facilitate the construction of a better sound channel.

[0103] As Figure 6 shown Figure 6 The left side is an example diagram of an abdominal cavity ultrasound image before using the device provided by the embodiment of the present utility model. It can be seen that from the shallow to the deep surface, there are the abdominal wall, bladder, uterus, rectum and sacrum in turn; in the prior art, usually the artificial pushing method is used to push the intestine in front of the uterus out of the sound channel, that is, the area through which the therapeutic ultrasound passes, to protect the safety of the intestine. However, the bladder shapes of each person are different, and the positions of the uterus and the diseased parts are also very different. Not everyone's bladder can effectively push the intestine in the sound channel away.

[0104] As Figure 7 As shown on the right side, by using the device provided by the embodiment of the present utility model, the above-mentioned placement tube 11 and the above-mentioned expansion bladder 12 are placed inside the rectum of the patient, and after the above-mentioned expansion bladder 12 is inflated by injecting water, the positions of the uterus and the diseased parts can be effectively changed, the filling degree of the bladder can be reduced, so that some patients with poor positions of the uterus or the diseased parts can also smoothly undergo HIFU treatment, expanding the applicable population of HIFU, and at the same time increasing the distance between the diseased part, that is, the focus, and the sacrococcygeal region, reducing the occurrence of sacrococcygeal distending pain and nerve injury. In addition, it can also avoid the pain of the patient's preoperative bladder exercise, and further avoid the occurrence of diseases such as urinary retention caused by improper bladder exercise after the operation.

[0105] As Figure 7 shown Figure 7 The left side is another example diagram of an abdominal cavity ultrasound image before using the device provided by the embodiment of the present utility model. It can be seen that in Figure 4 the case of the left diagram, although a safe sound channel can be constructed, the treatment probe on the lower abdomen squeezes the abdominal wall by 39 mm;

[0106] As Figure 7As shown in the right figure, by using the device provided in the embodiment of the present invention, the above-mentioned placement tube 11 and the above-mentioned expansion bladder 12 are placed inside the patient's rectum. After the above-mentioned expansion bladder 12 is inflated with water, it can reduce the extrusion of the treatment probe on the lower abdomen while ensuring the construction of a safe sound channel. The extrusion is only 9 mm, so as to avoid skin extrusion injury and scalding; at the same time, it increases the distance between the lesion and the sacrococcygeal region, avoiding the occurrence of sacrococcygeal distending pain and nerve injury; moreover, the lesion is closer to the monitoring probe under the abdominal wall, and the lesion is displayed more clearly.

[0107] In summary, a device for changing the position of an organ provided in the embodiment of the present invention places the above-mentioned filling and expanding assembly 1 in the rectum of a patient, and then injects physiological saline into the filling and expanding assembly 1 by using the storage medium assembly 4 and the control assembly, so that the volume of the filling and expanding assembly 1 expands, filling the inside of the patient's rectum, causing a certain extrusion on the lesion organ in front of the rectum, thereby changing the organ position, making the lesion organ closer to the abdominal wall to facilitate the construction of the sound channel; it can adjust the water injection volume in the filling and expanding assembly 1 according to the actual conditions such as the condition of different patients, control the volume of the filling and expanding assembly 1 after inflation, which is more conducive to treatment, and at the same time can also reduce the occurrence of adverse reactions during the operation of the patient and improve the treatment experience of the patient; the patient does not need to exercise the bladder by himself to change the compliance of the bladder muscle, and thus can also avoid other problems caused by improper exercise. The overall structure of the device is simple and the operation is convenient. It can simply and effectively push the abdominal organs, change the organ position, facilitate the construction of the sound channel, and make the lesion organ more clearly displayed on the ultrasonic image; the production cost of the device is low, which is conducive to large-scale popularization and application.

[0108] The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, and any new method or process step or any new combination disclosed.

Claims

1. A device for changing the position of an organ, characterized in that: It comprises a filling and expansion component (1) and a medium inflow tube (2); wherein: The inflation expansion component (1) can be expanded by injecting a medium and has a hard insertion portion; A medium inflow pipe (2), one end of which is directly or indirectly connected to the interior of the filling and expansion component (1), and the other end of which is a medium inlet end for injecting the medium into the filling and expansion component (1); A control component for controlling the flow state of the medium is arranged on the tube body between the medium inlet end and the filling and expansion component (1).

2. The device according to claim 1, characterized in that: The medium inlet end is connected to a medium storage component (4).

3. The device according to claim 1, characterized in that: The inflation and expansion component (1) comprises an insertion tube (11) and an expansion bag (12), wherein the insertion tube (11) serves as an insertion portion, and the expansion bag (12) is coated on the insertion tube (11) and sealed with the insertion tube (11); the insertion tube (11) is provided with a plurality of flow holes connected to the interior of the expansion bag (12); and the inlet of the insertion tube (11) is directly or indirectly connected to the medium inflow tube (2).

4. The device according to claim 3, characterized in that: It also includes a medium outflow pipe (7); A medium outflow pipe (7), one end of which is directly or indirectly connected to the interior of the filling and expansion component (1) or the insertion pipe (11), and the other end of which is a medium outlet end for discharging the medium in the filling and expansion component (1); a medium collecting component (71) is connected to the medium outlet end; A control component for controlling the outflow state of the medium is arranged on the tube body between the medium outlet end and the filling and expansion component (1).

5. The device according to claim 4, characterized in that: The medium inflow pipe (2) and the medium outflow pipe (7) are both connected to one end of the main flow pipe (8), and the other end of the main flow pipe (8) is connected to the filling and expansion component (1).

6. The device according to claim 5, characterized in that: The control assembly comprises a three-way valve (82) and a main control valve (81); the medium inflow pipe (2) and the medium outflow pipe (7) are connected to the main flow pipe (8) via the three-way valve (82); and the main control valve (81) is arranged on the main flow pipe (8).

7. The device according to any one of claims 3 to 6, characterized in that: The front end surface of the insertion tube (11) is a spherical surface.

8. The device according to any one of claims 3 to 6, characterized in that: The expansion bag (12) is a bag-like structure made of medical elastic material.

9. The device according to claim 1, characterized in that: It also includes a pressure detection component (6) for detecting the internal pressure of the inflation expansion component (1).

10. The device according to claim 1, characterized in that: A transparent observation capsule (5) is provided on the medium inflow tube (2).

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