Posterior peritoneal cavity dilatation balloon

Abstract

The utility model relates to a retroperitoneal cavity dilatation balloon which comprises a balloon body which is not transmitted by X rays and has mark colors, an inflation device and a connecting pipe communicated with the balloon body and the inflation device, and the inflation device is used for controlling inflation gas flow and further controlling inflation capacity. The balloon and the connecting pipe are detachably connected in a sealed mode through a first connecting device, and the inflating device and the connecting pipe are detachably connected in a sealed mode through a second connecting device; a pressure relief device is fixed to the inflation device and used for relieving pressure when inflation pressure is larger than preset inflation pressure so as to prevent the balloon from being broken. And the inflating device and the pressure relief device are electrically connected with the controller. According to the retroperitoneal cavity expansion balloon, the inflation capacity and pressure of the balloon can be controlled, the balloon is prevented from being broken, and parts can be conveniently detached and replaced and fragments of the balloon can be conveniently found.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a retroperitoneal cavity dilation balloon. Background Technology

[0002] In clinical practice, to establish the retroperitoneal cavity, a longitudinal incision of approximately 2.0 cm is made below the 12th costal margin along the posterior axillary line, wide enough to allow the surgeon's index finger to enter. Using long, curved hemostats, the muscle layers and lumbar fascia are bluntly dissected. The index finger is inserted, and the retroperitoneal cavity is dissected from bottom to top and from back to front, pushing the peritoneum ventrally. A self-made dilatation balloon (the middle finger of a size 8 medical latex glove is placed over the anal canal or a 16F urinary catheter and secured with thread) is placed in the retroperitoneal cavity, inflated with 600-800 ml of air, and maintained in a dilated state for 3-5 minutes before deflation and removal. The retroperitoneal cavity is then successfully established.

[0003] However, the existing technology has the following drawbacks: 1. The inflation volume of the balloon is uncontrollable, and the amount of gas injected cannot be clearly determined. The balloon wall has a limited capacity, and excessive inflation will cause the pressure inside the balloon to exceed the external air pressure, leading to balloon wall rupture; 2. After the balloon wall ruptures, the broken balloon fragments are not easy to find in the human body.

[0004] In order to control the inflation volume and pressure of the balloon and prevent balloon rupture, it is an urgent technical problem to be solved in this field to provide a retroperitoneal dilatation balloon that can control the inflation volume and pressure and facilitate the retrieval of balloon fragments. Utility Model Content

[0005] In view of this, the present invention provides a retroperitoneal cavity dilatation balloon that can control the balloon inflation volume and pressure to prevent balloon rupture; it can also facilitate the retrieval of balloon fragments after balloon rupture.

[0006] This application also provides a retroperitoneal cavity dilation balloon, including a balloon that is not radiolucent and has a marked color, an inflation device, and a connecting tube connecting the balloon and the inflation device. The inflation device is used to control the gas flow rate during inflation, thereby controlling the inflation capacity. The balloon and the connecting tube are detachably and sealed together by a first connecting device, and the inflation device and the connecting tube are detachably and sealed together by a second connecting device.

[0007] The inflation device is equipped with a pressure relief device, which is used to release pressure when the inflation pressure is greater than the preset inflation pressure to prevent the balloon from rupturing; the inflation device, the pressure relief device and the controller are electrically connected.

[0008] Optionally, the balloon may be made of materials that are not radiolucent and rubber.

[0009] Optionally, the marking color of the balloon is blue.

[0010] Optionally, the balloon may be marked in green.

[0011] Optionally, the first connecting device includes a detachably connected first plug and a first connector, the balloon inlet being fitted onto the first plug, and the first connector being connected to the connecting tube.

[0012] Optionally, the inner wall of the balloon air inlet is sleeved with the outer wall of the first plug and fixedly connected by ultrasonic waves.

[0013] Optionally, the second connecting device includes a detachably connected second plug and a second connector, the second plug being connected to the inflation tube of the inflation device, and the second connector being connected to the connecting tube.

[0014] Optionally, a flow sensor is fixed on the inflation tube.

[0015] Optionally, a branch pipe is connected to the inflation pipe, and the pressure relief device is fixed on the branch pipe.

[0016] Optionally, the inflation device is fixed with an adjustment component with a scale, which is used to control the output flow rate of the inflation gas.

[0017] Compared with the prior art, the retroperitoneal cavity dilation balloon provided by this utility model achieves at least the following beneficial effects:

[0018] The retroperitoneal cavity expansion balloon provided by this utility model has precise inflation control, and the inflation device can control the gas output flow rate, solving the problem of uncontrollable inflation capacity of traditional balloons.

[0019] The balloon rupture prevention mechanism is effective. A pressure relief device is fixed on the connecting tube. When the inflation pressure exceeds the preset value, it can automatically release pressure to prevent the balloon from rupturing due to over-inflation and ensure surgical safety.

[0020] The connection is both secure and flexible. The connecting tube connects the balloon and the inflation device through the first connecting device and the second connecting device, respectively, ensuring a secure connection while facilitating operation, maintenance and component replacement.

[0021] The balloon is easy to locate fragments because it is not radiopaque and has a distinctive color that allows it to be visualized under X-rays. If the balloon ruptures, it makes it easier for medical staff to find fragments inside the body, reducing the risk of complications caused by residual fragments.

[0022] The retroperitoneal cavity dilation balloon of this invention can effectively overcome the shortcomings of existing balloon-related technologies, and has high practicality, safety and convenience, which is conducive to the development of retroperitoneal cavity related surgical operations.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all the technical effects described above at the same time.

[0024] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0026] Figure 1 This is a schematic diagram of the structure of the retroperitoneal cavity dilation balloon provided by this utility model;

[0027] Figure 2 This is a front view of the retroperitoneal cavity dilation balloon provided by this utility model;

[0028] Figure 3 This is a cross-sectional view of the retroperitoneal cavity dilation balloon provided by this utility model;

[0029] Figure 4 This is a partial cross-sectional view of the connecting pipe and the first connecting device provided by this utility model;

[0030] Figure 5 This is a simplified front view of the retroperitoneal dilation balloon provided by this utility model;

[0031] Wherein: 10, balloon; 20, first connecting device; 21, first plug; 22, first connector; 30, connecting tube; 40, second connecting device; 41, second plug; 42, second connector; 50, inflation device; 51, inflation tube; 52, flow sensor; 53, adjusting component; 54, branch tube; 55, pressure relief device. Detailed Implementation

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0035] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0037] In one alternative embodiment, refer to Figures 1-4 The retroperitoneal cavity expansion balloon provided in this embodiment includes a balloon 10 that is not radiolucent and has a marked color, an inflation device 50, and a connecting tube 30 connecting the balloon 10 and the inflation device 50. The inflation device 50 controls the gas flow rate during inflation, thereby controlling the inflation volume. A pressure relief device 55 is fixed to the inflation device 50, which releases pressure when the inflation pressure exceeds a preset inflation pressure to prevent the balloon 10 from rupturing. The balloon 10 and the connecting tube 30 are detachably and sealed together via a first connecting device 20, and the inflation device 50 and the connecting tube 30 are detachably and sealed together via a second connecting device 40. The inflation device 50, the pressure relief device 55, and the controller are electrically connected.

[0038] Understandably, balloon 10 is not radiopaque and has a distinctive color. When balloon 10 ruptures, doctors can clearly observe the location and shape of balloon 10 fragments through X-rays. Its unique color also makes it easier for doctors to find and identify balloon 10 fragments in the human body, facilitating timely removal and reducing the risk of complications such as infection and inflammation caused by balloon 10 fragments remaining in the body, thus further ensuring patient safety.

[0039] The inflation device 50 allows for setting the inflation volume, solving the problem of traditional balloons 10 requiring multiple inflations and having uncontrollable inflation volume. Surgeons can precisely control the gas volume injected into the balloon 10 according to the specific needs of the surgery, thereby better expanding the retroperitoneal cavity, providing a more suitable operating space for the surgery, reducing surgical risks and complications that may result from improper inflation, and improving the safety and success rate of the surgery.

[0040] It should be noted that during the initial inflation period, the inflation pressure of the balloon 10 gradually increases with the inflation time. As the inflation time continues to increase, once the pressure inside the balloon 10 reaches a certain level, the material of the balloon 10 begins to undergo elastic deformation, and its gas-holding capacity gradually reaches its limit. At this point, continued inflation may gradually slow down the rate of pressure increase, and even after reaching the maximum withstand pressure of the balloon 10, gas leakage or slight retraction after the balloon 10 has expanded to its limit may occur, resulting in a stable pressure or a slight decrease. Therefore, even if the input gas flow rate and gas pressure remain constant, the pressure will change as the gas volume in the connecting tube 30 and the balloon 10 accumulates and increases.

[0041] To address this, a preset inflation pressure can be determined in advance to prevent excessive inflation volume from causing the balloon 10 to rupture due to excessive pressure. The pressure relief device 55 can detect the gas pressure. During inflation, if the inflation pressure exceeds the preset inflation pressure, the pressure relief device 55 will automatically activate to release excess gas pressure in a timely manner. This prevents the balloon 10 from rupturing due to excessive pressure caused by over-inflation, ensuring the safety of the surgery, reducing the need for emergency treatment due to balloon 10 rupture during surgery, lowering the complexity and risk of the surgery, and avoiding any additional harm to the patient that might result from balloon 10 rupture.

[0042] The balloon 10 and the connecting tube 30 are sealed together by a connecting device to ensure that there is no gas leakage during inflation and use, thus guaranteeing the inflation effect and stability of the balloon 10. This allows the balloon 10 to continuously and stably expand the retroperitoneal cavity, providing reliable operating conditions for surgery.

[0043] The retroperitoneal cavity dilation balloon of this invention overcomes the problems of uncontrollable inflation volume, easy rupture, and difficulty in finding fragments in the existing balloon 10. It has high safety, convenience and practicality in clinical use and can better serve retroperitoneal cavity related surgical operations.

[0044] In one alternative embodiment, refer to Figures 1-4 The first connecting device 20 includes a detachably connected first plug 21 and a first connector 22. The air inlet of the balloon 10 is fitted onto the first plug 21, and the first connector 22 is connected to the connecting tube 30. To increase the stability of the connection and prevent air leakage, the inner wall of the air inlet of the balloon 10 is fitted onto the outer wall of the first plug 21 and fixedly connected by ultrasonic waves. The second connecting device 40 includes a detachably connected second plug 41 and a second connector 42. The second plug 41 is connected to the inflation tube 51 of the inflation device 50, and the second connector 42 is connected to the connecting tube 30.

[0045] Understandably, the balloon 10 and the connecting tube 30 are detachably and sealed through the first plug 21 and the first connector 22, ensuring that the gas will not leak during inflation and use, thus guaranteeing the inflation effect and stability of the balloon 10. This allows the balloon 10 to continuously and stably expand the retroperitoneal cavity, providing reliable operating conditions for surgery.

[0046] The first plug 21 of the first connecting device 20 is ultrasonically fixed to the air inlet of the balloon 10. The energy generated by the ultrasonic waves causes the materials at the contact interface to fuse together, forming a strong and well-sealed connection that effectively prevents gas leakage. At the same time, the first plug 21 and the first connector 22 are detachable, facilitating disassembly and replacement when needed, thus combining connection stability with usage flexibility.

[0047] The second connecting device 40 also uses a detachable second plug 41 and second connector 42 to connect the inflation tube 51 of the inflation device 50 to the connecting tube 30, which facilitates the assembly, disassembly and maintenance of each component, making the construction and adjustment of the entire inflation system more convenient and efficient, and also facilitates the corresponding handling when the equipment malfunctions or needs to be cleaned, disinfected or replaced.

[0048] It should be noted that the first connecting device 20 and the second connecting device 40 can be matching Luer tapers. A Luer taper is a standardized, leak-free, micro-volume connector that connects via a male Luer taper and a matching female Luer taper. The first plug 21 and the first connector 22 can also be threaded, snap-fit, Luer taper-type, or quick-connect / remove-out connectors (male and female connectors that connect and disconnect with simple insertion and removal). To save costs, the first connecting device 20 can be replaced with an adhesive that seals the connection between the balloon 10 and the connecting tube 30, and the second connecting device 40 can be replaced with an adhesive that seals the connection between the inflation device 50 and the connecting tube 30. The adhesive may include medical adhesive.

[0049] In one alternative embodiment, a flow sensor 52 is fixed to the inflation pipe 51, and a branch pipe 54 is connected to the inflation pipe 51, with a pressure relief device 55 fixed to the branch pipe 54. An adjusting member 53 with a scale is fixed to the inflation device 50, which is used to control the output flow rate of the inflation gas and the inflation time.

[0050] Understandably, the inflation device 50 is equipped with a graduated adjustment component 53, which can be an adjustment knob. This allows medical staff to precisely control the output flow rate and inflation time of the inflation gas by adjusting the adjustment component 53 according to the actual needs of the surgery. This enables accurate control of the gas volume injected into the balloon 10, effectively solving the problem of uncontrollable inflation volume of traditional balloons 10. It allows the degree of expansion of the retroperitoneal cavity to be adjusted as needed, creating more ideal operating conditions for the surgery.

[0051] The pressure relief device 55 can detect gas pressure. During inflation, if the inflation pressure exceeds the preset inflation pressure, the pressure relief device 55 will automatically start to perform pressure relief. The excess gas pressure can be released in time through the branch tube 54, preventing the balloon 10 from rupturing due to excessive pressure caused by over-inflation. This ensures the safety of the surgery, reduces the need for emergency treatment due to balloon 10 rupture during the surgery, reduces the complexity and risk of the surgery, and also avoids additional harm to the patient's body that may be caused by balloon 10 rupture.

[0052] The flow sensor 52 fixed on the inflation tube 51 can monitor the gas flow in real time and feed back the relevant data to the controller for easy viewing by medical staff. This helps to further determine the accuracy of the inflation volume based on the gas flow and inflation time. Medical staff can use the data fed back by the flow sensor 52, combined with the settings of the adjustment component 53, to complete the inflation operation more scientifically and avoid deviations in inflation volume due to factors such as abnormal flow.

[0053] To facilitate the locating of fragments of the balloon 10, in one alternative embodiment, the balloon 10 is made of materials that are not radiolucent, such as rubber. The balloon 10 is marked in blue or green.

[0054] Understandably, the balloon 10 is made of a material that is not radiolucent and is mixed with rubber, and has a striking color such as blue or green. The radiolucent material is a contrast agent that can be visualized, so that the position, shape and degree of expansion of the balloon 10 can be clearly shown in imaging examinations such as X-rays and CT scans, helping doctors to more accurately determine the expansion of the retroperitoneal cavity and improve the safety and precision of the operation.

[0055] It should be noted that the material that is not radiopaque can be barium sulfate. Barium sulfate has a high melting point (1580℃), while the high temperatures involved in the manufacturing process of rubber balloons are usually much lower than this. Therefore, the chemical properties of barium sulfate remain stable at high temperatures and are not easily decomposed or changed. This allows the balloon 10, whose main components are barium sulfate and rubber, to be visible under X-rays.

[0056] In the event of accidental rupture of the balloon 10 during surgery, barium sulfate allows the balloon 10 fragments to be visualized under X-rays. Combined with its unique color, medical staff can more quickly and accurately locate and remove these fragments from the body, reducing the risk of complications such as infection and damage to surrounding tissues caused by balloon 10 fragments remaining in the body, and further ensuring the health and safety of patients.

[0057] The retroperitoneal cavity expansion balloon of this invention has precise control over the inflation volume. The inflation device 50 is equipped with a graduated adjustment component 53, which can control the gas output flow rate and inflation time. At the same time, the flow sensor 52 on the inflation tube 51 can monitor the flow rate in real time. The two work together to achieve precise control over the inflation volume, solving the problem of uncontrollable inflation capacity of traditional balloons 10.

[0058] The anti-rupture mechanism of balloon 10 is effective. A pressure relief device 55 is fixed on the inflation device 50. When the inflation pressure exceeds the preset value, it can automatically release pressure to prevent balloon 10 from rupturing due to over-inflation and ensure surgical safety.

[0059] The connection is stable and flexible. The connecting tube 30 is connected to the balloon 10 and the inflation device 50 through the first connecting device 20 and the second connecting device 40, respectively. The first plug 21 of the first connecting device 20 is ultrasonically fixed to the air inlet of the balloon 10 and can be detached from the first connector 22. The second plug 41 and the second connector 42 of the second connecting device 40 can be detachably connected to the inflation tube 51 of the inflation device 50 and the connecting tube 30, ensuring a firm connection while facilitating operation, maintenance and replacement of parts.

[0060] To facilitate the search for fragments, balloon 10 is made of a mixture of barium sulfate and rubber, which is both radiopaque under X-ray and has a unique color. If balloon 10 ruptures, it will be easier for medical staff to find fragments inside the body, reducing the risk of complications caused by residual fragments.

[0061] This invention, through its rational design and functional configuration, effectively overcomes the problems of uncontrollable inflation capacity, easy rupture, and difficulty in finding fragments in the existing balloon 10. It has high safety, convenience, and practicality in clinical use and can better serve surgical operations related to the retroperitoneal cavity.

[0062] To save costs, the retroperitoneal cavity dilation balloon of this invention can be simplified, referring to... Figure 5 The simplified retroperitoneal dilatation balloon includes: a balloon 10 that is not radiopaque and has a marked color, an inflation device 50, and a connecting tube 30 that connects the balloon 10 and the inflation device 50. A branch tube 54 is connected to the inflation tube 51 of the inflation device 50, and a pressure relief device 55 is fixed on the branch tube 54.

[0063] Understandably, during use, the balloon 10 is fitted onto one end of the connecting tube 30 and secured with a small rubber band; alternatively, a suitable amount of medical adhesive can be applied to the connection between the balloon 10 and the connecting tube 30, and then the two are quickly joined together and kept under pressure for a certain period of time to allow the adhesive to cure, thus achieving a sealed connection. Then, the inflation tube 51 of the inflation device 50 is connected to the other end of the connecting tube 30. The inflation device 50 is a large-capacity manual inflation device marked with a capacity scale. After connecting all components, during inflation, when the pressure relief device 55 on the branch tube 54 detects that the inflation pressure exceeds the preset inflation pressure, it releases pressure to prevent the balloon 10 from rupturing.

[0064] The pressure relief device 55 can be detachably connected to the branch pipe 54. The pressure relief device 55 and the inflation device 50 can be disinfected and reused, saving costs.

[0065] The pressure relief device 55, inflation device 50, and flow sensor 52 involved in the above embodiments are products and electrical components using existing technology. Their connection relationship with the controller, specific structure, and working principle all adopt existing technology in the field. Their power supply and principle are clear to those skilled in the art and will not be described in detail here. The connection and installation of each part and the signal transmission principle are technologies known in the field.

[0066] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A retroperitoneal cavity dilatation balloon, characterized in that, The device includes a balloon that is not radiolucent and has a distinctive color, an inflation device, and a connecting tube connecting the balloon and the inflation device. The inflation device is used to control the flow rate of the inflation gas and thus control the inflation capacity. The balloon and the connecting tube are detachably and sealed together by a first connecting device, and the inflation device and the connecting tube are detachably and sealed together by a second connecting device. The inflation device is equipped with a pressure relief device, which is used to release pressure when the inflation pressure is greater than the preset inflation pressure to prevent the balloon from rupturing; the inflation device, the pressure relief device and the controller are electrically connected.

2. The retroperitoneal dilatation balloon according to claim 1, characterized in that, The materials used to make the balloon include materials that are not radiolucent and rubber.

3. The retroperitoneal dilatation balloon according to claim 1, characterized in that, The balloon is marked in blue.

4. The retroperitoneal dilatation balloon according to claim 1, characterized in that, The balloon is marked in green.

5. The retroperitoneal dilatation balloon according to claim 1, characterized in that, The first connecting device includes a detachably connected first plug and a first connector, the balloon air inlet is fitted onto the first plug, and the first connector is connected to the connecting tube.

6. The retroperitoneal dilatation balloon according to claim 5, characterized in that, The inner wall of the balloon air inlet is sleeved with the outer wall of the first plug and fixedly connected by ultrasonic waves.

7. The retroperitoneal dilatation balloon according to claim 1, characterized in that, The second connecting device includes a detachably connected second plug and a second connector, the second plug being connected to the inflation tube of the inflation device, and the second connector being connected to the connecting tube.

8. The retroperitoneal dilatation balloon according to claim 6, characterized in that, A flow sensor is fixed on the inflation tube.

9. The retroperitoneal dilatation balloon according to claim 7, characterized in that, The inflation tube is connected to a branch tube, and the pressure relief device is fixed on the branch tube.

10. The retroperitoneal dilatation balloon according to claim 1, characterized in that, The inflation device is equipped with a graduated adjustment component, which is used to control the output flow rate of the inflation gas.

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