An enema device having a balloon catheter

Abstract

This utility model discloses an enema device with a balloon-tube, comprising a balloon, a tube, an air bladder, and an inflation tube. The balloon has a liquid storage chamber, an air inlet connecting to the liquid storage chamber, and an outlet tube. The tube has a liquid inlet channel and an airflow channel. The liquid inlet channel has an inlet end and a outlet end, and one end of the liquid inlet channel is connected to the liquid storage chamber through the inlet end, while the other end of the liquid inlet channel is connected to the outlet end. The air bladder is located at the end of the tube away from the balloon, and its inner cavity is connected to the airflow channel. The inflation tube is connected to the side wall of the tube and is connected to the airflow channel. The air inlet end of the inflation tube is detachably fitted with a sealing cap. A one-way air inlet valve is provided on the balloon corresponding to the air inlet position, and a one-way outlet valve is provided in the outlet tube. This device is multifunctional, can increase the enema fluid delivery pressure, and prevents backflow of the enema fluid in the tube when the balloon is reset.

Description

Technical Field

[0001] This utility model relates to the field of enema technology, and in particular to an enema device with a balloon catheter. Background Technology

[0002] A Chinese patent with publication number CN222286065U discloses a balloon-operated high-level enema device, comprising a reservoir bag, an enema tubing, a balloon, and an air inlet tube. The reservoir bag is used to hold enema fluid. The enema tubing is connected to the reservoir bag. The balloon is connected to the enema tubing and at least partially covers the outer periphery of the enema tubing in the circumferential direction. The air inlet tube is connected to the balloon, and the end of the air inlet tube away from the balloon is used for air intake. The balloon completely covers the outer periphery of the enema tubing at the designated position. The balloon-operated high-level enema device also includes a cylindrical inlet tube, which is detachably disposed between the inner periphery of the balloon and the outer periphery of the enema tubing.

[0003] However, the enema device mentioned above has the following drawbacks: the enema device uses the gravity of the enema fluid in the high-positioned storage bag to transport the enema fluid to the enema tube, and the pressure of the enema fluid in the enema tube is difficult to control, making it impossible to achieve a large hydraulic pressure for enema fluid injection, which urgently needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide an enema device with a balloon catheter, which is multifunctional, can increase the enema fluid delivery pressure, and prevents backflow of the enema fluid in the catheter when the balloon is reset.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an enema device with a balloon catheter, comprising:

[0006] A balloon having a fluid reservoir, an air inlet communicating with the fluid reservoir, and a fluid outlet tube;

[0007] The catheter has a liquid inlet channel and a gas flow channel. The liquid inlet channel has a liquid inlet end and a liquid outlet end. One end of the liquid inlet channel is connected to the liquid storage chamber through the liquid inlet end, and the other end of the liquid inlet channel is connected to the liquid outlet end.

[0008] An airbag is disposed at the end of the conduit away from the balloon, and the inner cavity of the airbag is in communication with the airflow channel;

[0009] An inflation tube is connected to the side wall of the conduit and communicates with the airflow channel, and a sealing cap is detachably installed at the air inlet end of the inflation tube.

[0010] A one-way air intake valve structure is provided on the balloon, and the one-way air intake valve structure is used to allow external air to enter the liquid storage chamber in one direction;

[0011] A one-way discharge valve structure is provided inside the discharge pipe. The one-way discharge valve structure is used to allow the enema fluid in the storage chamber to be squeezed into the drainage channel in one direction.

[0012] By adopting the above technical solution, when it is necessary to output the enema fluid from the balloon, squeezing the balloon compresses the internal reservoir space. The enema fluid in the reservoir flows from the outlet tube through the one-way outlet valve structure into the catheter, and then out through the drainage channel from the discharge end. At this time, the air inlet is blocked by the one-way air inlet valve structure to prevent the enema fluid from escaping from the air inlet. When the pressure on the balloon is released, the balloon automatically resets due to its own elastic deformation force. During the reset process, a negative pressure is formed in the reservoir. At this time, external air enters the reservoir through the one-way air inlet valve structure to supplement the pressure. Due to the one-way outlet valve structure of the balloon, the enema fluid in the catheter can be effectively prevented from flowing back. In addition, the sealing cap can be removed, and an external inflation device can be connected through the inflation tube to inflate the airflow channel, which is then introduced into the balloon, causing the balloon to inflate. This invention fills the balloon with enema fluid, and by squeezing the balloon, the hydraulic pressure in the reservoir can be increased, thereby increasing the flow rate and pressure of the enema fluid flowing out of the catheter. It has multiple functions, can increase the enema fluid delivery pressure, and prevent the enema fluid in the catheter from flowing back when the balloon is reset.

[0013] A further feature of this invention is that the one-way air intake valve structure includes a valve body fixedly connected to the balloon, and a variable umbrella cap integrally disposed on the valve body and placed in the liquid storage chamber. The variable umbrella cap always has an elastic restoring force that seals and fits the air outlet end of the air inlet.

[0014] By adopting the above technical solution, during the balloon compression process, the variable umbrella cap part relies on its own elastic restoring force to tightly adhere to the air inlet, thereby sealing the air inlet. During the balloon release process, a negative pressure is formed inside the reservoir cavity, and external air is forced open through the air inlet, causing the variable umbrella cap part to separate from the air inlet, so that external air can enter the reservoir cavity through the air inlet.

[0015] A further feature of this invention is that a liquid filling hole is provided through the valve body, and a sealing cap is connected to the valve body to seal and cover the liquid filling hole.

[0016] By adopting the above technical solution, the enema fluid can be added to the storage chamber through the liquid filling hole after opening the sealing cover. After closing the sealing cover, the enema fluid is sealed and stored in the storage chamber.

[0017] A further feature of this invention is that a sealing ring is fixedly provided on the outside of the sealing cap, and the sealing cap and the liquid filling hole are sealed together by the sealing ring.

[0018] By adopting the above technical solution, the sealing ring can improve the water-proof performance between the sealing cap and the liquid filling hole.

[0019] A further feature of this invention is that a filter element is provided inside the air inlet.

[0020] By adopting the above technical solution, the filter element filters and adsorbs fine dirt in the air inlet of the outside air, preventing the outside air from carrying dirt and contaminating the enema fluid when it enters the liquid storage chamber through the air inlet.

[0021] A further feature of this invention is that the one-way air intake valve structure includes a one-way breathing membrane disposed within the air intake hole, and the one-way breathing membrane is disposed at the air outlet end of the air intake hole relative to the filter element.

[0022] By adopting the above technical solution, the one-way breathing membrane allows external air to enter the liquid storage chamber in one direction, while also preventing the enema fluid in the liquid storage chamber from overflowing from the air inlet.

[0023] A further feature of this invention is that a filter screen is provided inside the air inlet, and the filter screen is disposed at the air inlet end of the air inlet relative to the filter element.

[0024] By adopting the above technical solution, the filter can isolate larger impurities mixed in with the outside air, preventing larger impurities from directly covering and blocking the air inlet.

[0025] A further feature of this invention is that the one-way discharge valve structure includes a spring and a baffle bead, the end of the discharge pipe near the liquid storage chamber extends inward with an annular mating part, a positioning block is provided inside the discharge pipe, one end of the spring abuts against the positioning block, and the other end of the spring pushes the baffle bead to seal against the annular mating part.

[0026] By adopting the above technical solution, under the balloon compression state, the enema fluid in the balloon is squeezed to the outlet tube, the enema fluid squeezes the baffle away from the annular mating part and compresses the spring, at which time the enema fluid in the storage chamber can flow to the catheter through the outlet tube.

[0027] A further feature of this invention is that the liquid outlet tube is connected to the bottom of the balloon, and the air inlet is located at the top of the balloon, away from the liquid outlet tube.

[0028] By adopting the above technical solution, when the balloon is held and squeezed, the enema fluid in the reservoir can be quickly discharged from the bottom of the balloon. When the squeezing force on the balloon is released, the balloon returns to its original position, and the air inlet at the top of the balloon is far away from the enema fluid in the reservoir, thereby effectively preventing the enema fluid in the reservoir from accidentally overflowing from the air inlet.

[0029] A further feature of this invention is that the balloon is provided with an insulation layer.

[0030] By adopting the above technical solution, the addition of the insulation layer can improve the insulation effect of the enema fluid in the balloon and prevent the temperature of the enema fluid in the storage chamber from fluctuating greatly in a short period of time due to changes in the external environment.

[0031] In summary, this utility model has the following beneficial effects:

[0032] The device employs a balloon connected upstream of the catheter, with an inflation tube connected to the side of the catheter. A one-way air inlet valve is located at the top of the balloon, and an outlet tube with a one-way outlet valve is connected to the bottom. When enema fluid needs to be output from the balloon, squeezing the balloon compresses the internal reservoir. The enema fluid in the reservoir flows from the outlet tube through the one-way outlet valve into the catheter, and then exits through the drainage channel from the outlet end. At this time, the air inlet is blocked by the one-way air inlet valve to prevent enema fluid from escaping. When the pressure on the balloon is released, the balloon automatically resets due to its elastic deformation. During the reset process, a negative pressure is created within the reservoir. External air enters the reservoir cavity through a one-way air inlet valve to replenish the pressure. At this time, due to the one-way air outlet valve, the outflow tube of the balloon can effectively prevent the enema fluid in the catheter from flowing back. In addition, the sealing cap can be removed, and an external inflation device can be connected through the inflation tube to inflate the airflow channel, which is then introduced into the balloon, causing the balloon to inflate. This invention fills the balloon with enema fluid, and by squeezing the balloon, the hydraulic pressure in the reservoir cavity can be increased, thereby increasing the flow rate and pressure of the enema fluid flowing out of the catheter. It has multiple functions, can increase the enema fluid delivery pressure, and prevent the enema fluid in the catheter from flowing back when the balloon is reset. Attached Figure Description

[0033] Figure 1 This is an overall structural diagram of a specific embodiment of the present utility model.

[0034] Figure 2 This is a utility model Figure 1 A magnified view of a portion of region A in the middle.

[0035] Figure 3 This is a utility model Figure 2 A view of the one-way intake valve structure in the intake state.

[0036] Figure 4 This is a utility model Figure 1 A magnified view of a portion of region B in the middle.

[0037] Figure 5 This is a partial cross-sectional view of the one-way intake valve structure in a specific embodiment of this utility model.

[0038] In the diagram: 1. Balloon; 11. Liquid reservoir; 12. Air inlet; 121. Filter element; 122. One-way breathing membrane; 123. Filter screen; 13. Liquid outlet tube; 130. Annular mating part; 131. Spring; 132. Bead stop; 133. Positioning block; 14. Insulation layer; 2. Conduit; 21. Liquid inlet channel; 211. Liquid inlet end; 212. Liquid outlet end; 22. Airflow channel; 3. Airbag; 4. Inflation tube; 41. Sealing cap; 5. Valve body; 51. Variable umbrella cap part; 52. Liquid filling hole; 53. Sealing cover; 531. Sealing ring. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings. Specific Implementation Example 1

[0041] An enema device with a balloon catheter, such as Figure 1-4 As shown, the device includes a balloon 1, a catheter 2, an airbag 3, and an inflation tube 4. The balloon 1 has a liquid reservoir 11, an air inlet 12 communicating with the liquid reservoir 11, and an outlet tube 13. The catheter 2 has a liquid inlet channel 21 and an airflow channel 22. The liquid inlet channel 21 has an inlet end 211 and an outlet end 212. One end of the liquid inlet channel 21 is connected to the liquid reservoir 11 through the inlet end 211, and the other end of the liquid inlet channel 21 is connected to the outlet end 212. The airbag 3... Located at the end of the catheter 2 furthest from the balloon 1, with the inner cavity of the balloon 3 connected to the airflow channel 22, the inflation tube 4 is connected to the side wall of the catheter 2 and connected to the airflow channel 22. A sealing cap 41 is detachably installed at the air inlet end of the inflation tube 4. A one-way air inlet valve is provided on the balloon 1 at the position corresponding to the air inlet 12, allowing external air to enter the liquid storage chamber 11 in one direction. A one-way liquid outlet valve is provided in the liquid outlet tube 13, allowing enema administration within the liquid storage chamber 11. The enema fluid is squeezed unidirectionally into the drainage channel 21. In this embodiment, the outlet tube 13 is connected to the bottom of the balloon 1, and the air inlet 12 is located at the top of the balloon 1, away from the outlet tube 13. When the balloon 1 is held and squeezed, the enema fluid in the storage chamber 11 can be quickly discharged from the bottom of the balloon 1. When the squeezing force on the balloon 1 is released, the balloon 1 returns to its original position, and the air inlet 12 at the top of the balloon 1 is away from the enema fluid in the storage chamber 11, thereby effectively preventing the enema fluid in the storage chamber 11 from accidentally overflowing from the air inlet 12. The balloon 1 is provided with an insulation layer 14. The addition of the insulation layer 14 can improve the heat preservation effect of the enema fluid in the balloon 1 and prevent the temperature of the enema fluid in the storage chamber 11 from fluctuating greatly in a short period of time due to changes in the external environment. The storage capacity of the enema fluid in the storage chamber 11 is set between 100-200ml. In this embodiment, 100, 150 or 200ml is preferred. In other embodiments, any other value between 100-200ml can be selected as the storage capacity.

[0042] like Figure 2-3 As shown, the one-way air intake valve structure includes a valve body 5 fixedly connected to the balloon 1, and a variable umbrella cap 51 integrally disposed on the valve body 5 and placed in the liquid storage chamber 11. The variable umbrella cap 51 always has an elastic restoring force that seals against the air outlet end of the air inlet 12. During the compression of the balloon 1, the variable umbrella cap 51 relies on its own elastic restoring force to tightly adhere to the air inlet 12, thereby sealing the air inlet 12. During the release of the balloon 1, a negative pressure is formed inside the liquid storage chamber 11, and external air is forced open by the air inlet 12, causing the variable umbrella cap 51 to separate from the air inlet 12, allowing external air to enter the liquid storage chamber 11 through the air inlet 12. A liquid filling hole 52 is provided through the valve body 5, and a sealing cap 53 that fits with the sealing cap of the liquid filling hole 52 is connected to the valve body 5. 53. Open the sealing cap 53 to add enema fluid to the storage chamber 11 through the liquid filling hole 52. Close the sealing cap 53 to seal and store the enema fluid in the storage chamber 11. A sealing ring 531 is fixedly provided on the outside of the sealing cap 53. The sealing cap 53 and the liquid filling hole 52 are sealed together by the sealing ring 531. The sealing ring 531 can improve the water-proof performance between the sealing cap 53 and the liquid filling hole 52. A filter screen 123 is provided in the air inlet 12. The filter screen 123 is set at the air inlet end of the air inlet 12 relative to the filter element 121. The filter screen 123 can isolate larger impurities mixed in with the outside air and prevent larger impurities from directly covering and blocking the air inlet 12. In other embodiments, the sealing cap 53 and the valve body 5 can also be fixed by a threaded connection.

[0043] like Figure 4 As shown, the one-way discharge valve structure includes a spring 131 and a baffle 132. The end of the discharge pipe 13 near the storage chamber 11 extends inward with an annular mating part 130. A positioning block 133 is provided inside the discharge pipe 13. One end of the spring 131 abuts against the positioning block 133, and the other end of the spring 131 pushes the baffle 132 to seal against the annular mating part 130. When the balloon 1 is squeezed, the enema fluid in the balloon 1 is squeezed to the discharge pipe 13. The enema fluid squeezes the baffle 132 away from the annular mating part 130 and compresses the spring 131. At this time, the enema fluid in the storage chamber 11 can flow to the conduit 2 through the discharge pipe 13.

[0044] The basic working principle of this utility model is as follows: A balloon 1 is connected upstream of the catheter 2, and an inflation tube 4 is connected to the side of the catheter 2. A one-way air inlet valve structure is set at the top of the balloon 1, and an outlet tube 13 is connected to the bottom of the balloon 1. A one-way outlet valve structure is set inside the outlet tube 13. When it is necessary to output the enema fluid in the balloon 1, the space of the internal storage chamber 11 is compressed by squeezing the balloon 1. The enema fluid in the storage chamber 11 is discharged from the outlet tube 13 through the one-way outlet valve structure into the catheter 2, and discharged from the drainage end 212 through the drainage channel 21. At this time, the air inlet 12 is blocked by the one-way air inlet valve structure to prevent the enema fluid from being discharged from the air inlet 12. When the pressure on the balloon 1 is released, the balloon 1 automatically resets by its own elastic deformation force. During the reset process, the storage... A negative pressure is formed in the liquid chamber 11. At this time, external air enters the liquid storage chamber 11 through the one-way air inlet valve structure to supplement the pressure. Due to the one-way air outlet valve structure, the outlet tube 13 of the balloon 1 can effectively prevent the backflow of enema fluid in the catheter 2. In addition, the sealing cap 41 can be removed, and an external inflation device can be connected through the inflation tube 4 to inflate the airflow channel 22 through the inflation tube 4, and finally into the airbag 3, causing the airbag 3 to inflate. This utility model fills the balloon 1 with enema fluid. By squeezing the balloon 1, the hydraulic pressure in the liquid storage chamber 11 can be increased, thereby increasing the flow rate and pressure of the enema fluid flowing out of the catheter 2. It has multiple functions, can increase the enema fluid delivery pressure, and prevent the enema fluid in the catheter from flowing back when the balloon is reset. Specific Implementation Example 2

[0046] An enema device having a balloon 1 and a catheter 2, such as Figure 5 As shown, the difference between this embodiment and specific embodiment one is that: a filter element 121 is provided inside the air inlet 12. The filter element 121 filters and adsorbs fine dirt in the air entering the air inlet 12, preventing the external air from carrying dirt and contaminating the enema fluid when it enters the liquid storage chamber 11 through the air inlet 12; the one-way air inlet valve structure includes a one-way breathing membrane 122 disposed in the air inlet 12, and the one-way breathing membrane 122 is disposed at the air outlet end of the air inlet 12 relative to the filter element 121. The one-way breathing membrane 122 is used to allow external air to enter the liquid storage chamber 11 in one direction, and at the same time, it can prevent the enema fluid in the liquid storage chamber 11 from overflowing from the air inlet 12.

[0047] The other structures of this embodiment are the same as those of Specific Embodiment 1, and will not be described again here.

[0048] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An enema device with a balloon catheter, characterized in that: include: The balloon (1) has a liquid reservoir (11), an air inlet (12) communicating with the liquid reservoir (11) and an outlet tube (13); The conduit (2) has a liquid inlet channel (21) and an airflow channel (22). The liquid inlet channel (21) has an inlet end (211) and a outlet end (212). One end of the liquid inlet channel (21) is connected to the liquid storage chamber (11) through the inlet end (211), and the other end of the liquid inlet channel (21) is connected to the outlet end (212). An airbag (3) is disposed at one end of the conduit (2) away from the balloon (1), and the inner cavity of the airbag (3) is connected to the airflow channel (22); An inflation tube (4) is connected to the side wall of the conduit (2) and communicates with the airflow channel (22), and the air inlet end of the inflation tube (4) is detachably fitted with a sealing cap (41); A one-way air intake valve structure is provided on the balloon (1), the one-way air intake valve structure is used to allow external air to enter the liquid storage chamber (11) in one direction; A one-way discharge valve structure is provided inside the discharge pipe (13). The one-way discharge valve structure is used to allow the enema fluid in the storage chamber (11) to be squeezed into the drainage channel (21) in one direction.

2. The enema device with a balloon catheter according to claim 1, characterized in that: The one-way air intake valve structure includes a valve body (5) fixedly connected to the balloon (1) and a variable umbrella cap (51) integrally provided on the valve body (5) and placed in the liquid storage cavity. The variable umbrella cap (51) always has an elastic restoring force that seals and fits the air outlet of the air inlet (12).

3. An enema device with a balloon catheter according to claim 2, characterized in that: A liquid filling hole (52) is provided through the valve body (5), and a sealing cover (53) that fits with the sealing cover (53) of the liquid filling hole (52) is connected to the valve body (5).

4. An enema device with a balloon catheter according to claim 3, characterized in that: A sealing ring (531) is fixedly provided on the outside of the sealing cover (53), and the sealing cover (53) and the liquid filling hole (52) are sealed together by the sealing ring (531).

5. An enema device with a balloon catheter according to claim 1, characterized in that: The air inlet (12) is equipped with a filter element (121).

6. An enema device with a balloon catheter according to claim 5, characterized in that: The one-way air intake valve structure includes a one-way breathing membrane (122) disposed in the air intake hole (12), and the one-way breathing membrane (122) is disposed at the air outlet end of the air intake hole (12) relative to the filter element (121).

7. An enema device with a balloon catheter according to claim 5, characterized in that: The air inlet (12) is provided with a filter screen (123), which is disposed at the air inlet end of the air inlet (12) relative to the filter element (121).

8. An enema device with a balloon catheter according to claim 1, characterized in that: The one-way discharge valve structure includes a spring (131) and a baffle (132). The end of the discharge pipe (13) near the liquid storage chamber (11) extends inward with an annular mating part (130). A positioning block (133) is provided inside the discharge pipe (13). One end of the spring (131) abuts against the positioning block (133), and the other end of the spring (131) pushes the baffle (132) to seal against the annular mating part (130).

9. An enema device with a balloon catheter according to claim 1, characterized in that: The liquid outlet tube (13) is connected to the bottom of the balloon (1), and the air inlet (12) is located at the top of the balloon (1), away from the liquid outlet tube (13).

10. An enema device with a balloon catheter according to claim 1, characterized in that: The balloon (1) is provided with an insulation layer (14).

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