Pressure stabilizing bag

Abstract

The utility model relates to the technical field of medical instruments, and provides a pressure stabilizing bag which comprises a main pressure bag, a supplementary pressure bag, a one-way valve, a fixing part and a pressurizing part, the one-way valve is connected between the main pressure bag and the supplementary pressure bag, the fixing part is arranged on the outer surface of the main pressure bag, and the pressurizing part is used for pressurizing the supplementary pressure bag; when the air pressure of the supplementary pressure bag is larger than that of the main pressure bag, the one-way valve is opened, and the supplementary pressure bag pressurizes the main pressure bag; when the air pressure of the supplementary pressure bag is smaller than or equal to that of the main pressure bag, the one-way valve is closed. Based on this, the pressure can be applied to the normal saline relatively stably.

Description

Technical Field

[0001] This application relates to the field of medical appliances, and particularly to a pressure stabilizing bag. Background Art

[0002] Ureteroscopic laser lithotripsy is a surgical intervention method for treating ureteral calculi. During the operation, a certain water flow pressure is required to keep the visual field clear and assist in better completing the operation, especially when using a flexible ureteroscope.

[0003] During the operation, by applying pressure to a normal saline bag, the normal saline is infused towards the ureteroscope to provide the water flow pressure. In some applications, a medical pressure bag is used to apply pressure to the normal saline bag. During the operation, as the normal saline decreases, the air pressure in the pressure bag decreases. In certain cases, the air pressure drops sharply, and it is unable to continue applying pressure to the normal saline well to form a water flow, resulting in an unclear surgical visual field and delaying the surgical process.

[0004] Therefore, during the operation, it is necessary to constantly monitor the situation of the main pressure bag and pressurize the pressure bag at any time to ensure sufficient pressure. Since the pressure bag is pressurized by a manual pressurizing airbag, and the operation has aseptic requirements, when pressurizing, it is necessary to take off the surgical gloves for pressurizing and then replace with new gloves, or wait for the circulating nurse to help with pressurizing. Since the operation process cannot be stopped for pressurizing at any time, and the circulating nurse cannot be present to help at any time, it causes a delay in the operation time and delays the surgical process.

[0005] Therefore, this application studies a pressure stabilizing bag, which can maintain the pressure more flexibly during the operation, apply pressure to the normal saline relatively stably, and ensure the surgical process. Utility Model Content

[0006] In order to be able to apply pressure to the normal saline relatively stably during the operation and ensure the surgical process, this application provides a pressure stabilizing bag.

[0007] A pressure stabilizing bag provided by this application adopts the following technical solution:

[0008] A pressure stabilizing bag includes a main pressure bag, a supplementary pressure bag, a one-way valve, a fixing member, and a pressurizing member. The one-way valve is connected between the main pressure bag and the supplementary pressure bag. The fixing member is arranged on the outer surface of the main pressure bag. The pressurizing member is used to pressurize the supplementary pressure bag;

[0009] When the air pressure in the supplementary pressure bag is greater than that in the main pressure bag, the one-way valve opens, and the supplementary pressure bag pressurizes the main pressure bag; when the air pressure in the supplementary pressure bag is less than or equal to that in the main pressure bag, the one-way valve closes.

[0010] By adopting the above technical solution, the main pressure bag is used to apply pressure to the normal saline, the supplementary pressure bag is used to supplement pressure to the main pressure bag, and the fixing member is used to fix the normal saline bag so that the normal saline bag fits on the main pressure bag; during the operation, first, the supplementary pressure bag is filled with gas through the pressurizing member, a pressure difference is generated between the supplementary pressure bag and the main pressure bag, and the gas pushes the one-way valve to inflate the main pressure bag. When the main pressure bag reaches the expected pressure value, the inflation of the supplementary pressure bag is stopped. During the operation, as the normal saline decreases, the air pressure in the main pressure bag decreases. At this time, due to the pressure difference generated with the supplementary pressure bag, the supplementary pressure bag will fill the main pressure bag with gas, so that the air pressure in the main pressure bag will not drop sharply due to the decrease of the normal saline, thus temporarily maintaining a relatively stable air pressure in the main pressure bag, enabling better ensuring that when the air pressure cannot be supplemented in time, the main pressure bag can still apply pressure to the normal saline relatively stably. When it is convenient for the operation or the circulating nurse can supplement the pressure, the supplement is carried out again to ensure the progress of the operation.

[0011] Optionally, the fixing member includes a covering member, and both opposite sides of the covering member are provided with through holes, and an accommodating cavity is formed between the covering member and the main pressure bag.

[0012] By adopting the above technical solution, the normal saline can be conveniently made to fit on the main pressure bag through the accommodating cavity.

[0013] Optionally, the fixing member further includes a hook, and the hook is arranged in the accommodating cavity and is connected to the main pressure bag.

[0014] By adopting the above technical solution, the normal saline bag can be conveniently fixed through the hook.

[0015] Optionally, the one-way valve includes a housing, a first ventilation member, a second ventilation member and a movable member. Both ends of the housing are respectively communicated with the main pressure bag and the supplementary pressure bag. The first ventilation member and the second ventilation member are arranged in the housing, and the movable member is movably arranged between the first ventilation member and the second ventilation member;

[0016] When the air pressure in the supplementary pressure bag is greater than the air pressure in the main pressure bag, the movable member opens, and the first ventilation member is communicated with the second ventilation member; when the air pressure in the supplementary pressure bag is less than or equal to the air pressure in the main pressure bag, the movable member closes, blocking the communication between the first ventilation member and the second ventilation member.

[0017] By adopting the above technical solution, when the air pressure in the main pressure bag decreases during the operation, an air pressure difference is generated on both sides of the movable part. At this time, the air pressure in the supplementary pressure bag pushes the movable part to move away from the first ventilator. The first ventilator is connected to the second ventilator, and the supplementary pressure bag replenishes gas into the main pressure bag to avoid a sharp drop in the gas in the main pressure bag, thereby maintaining the relative stability of the main pressure bag and still being able to apply relatively stable pressure to the physiological saline solution to ensure the progress of the operation.

[0018] Optionally, both the first ventilating member and the second ventilating member are provided with a movable hole, the movable member comprises a movable rod and a pressing portion, the movable rod is arranged in the movable hole and is slidably arranged with the first ventilating member and the second ventilating member, and the pressing portion is connected to the movable rod;

[0019] When the air pressure in the supplementary pressure bag is greater than the air pressure in the main pressure bag, the pressing portion is located between the first ventilator and the second ventilator, and the first ventilator is connected to the second ventilator; when the air pressure in the supplementary pressure bag is less than or equal to the air pressure in the main pressure bag, the pressing portion presses against the first ventilator, blocking the first ventilator from being connected to the second ventilator.

[0020] By adopting the above technical solution, the movable rod guides the movement of the pressing part, and when the gas in the supplementary pressure bag is greater than the gas in the main pressure bag to push the pressing part, pressure is also applied to the movable rod at the same time, thereby increasing the force area of ​​the movable part and better pushing the movable part.

[0021] Optionally, the movable member further includes an elastic member, which is sleeved on the movable rod, and has two ends respectively connected to the pressing portion and the second ventilating member.

[0022] By adopting the above technical solution, when the air pressure in the main pressure bag is equal to the air pressure in the supplementary pressure bag, the elastic member can restore its original state and push the pressing part to block the first vent, so as to avoid gas leakage in the main pressure bag as much as possible.

[0023] Optionally, the pressurizing member is a foot-operated air pump.

[0024] By adopting the above technical solution, the doctor only needs to add gas by stepping on it without taking off gloves, which is more convenient and allows the doctor to more flexibly add gas to the supplementary pressure bag during the operation, thereby adding gas to the main pressure bag.

[0025] Optionally, a first air pipe is connected between the pressurizing member and the supplementary pressure bag, and a first three-way valve is provided on the first air pipe.

[0026] By adopting the above technical solution, opening the first three-way valve can fill the supplementary pressure bag with gas. After the filling is completed, closing the first three-way valve can better ensure that the gas in the supplementary pressure bag does not leak.

[0027] Optionally, a second air pipe is connected to the main pressure bag, and a second three-way valve is arranged on the second air pipe.

[0028] By adopting the above technical solution, when deflating the main pressure bag after the operation, opening the second three-way valve can deflate the main pressure bag.

[0029] Optionally, a pressure gauge is arranged on the main pressure bag.

[0030] By adopting the above technical solution, the pressure in the main pressure bag can be conveniently obtained, so that the corresponding gas can be supplemented according to the display of the pressure gauge.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. The main pressure bag is used to apply pressure to the normal saline, the supplementary pressure bag is used to supplement pressure to the main pressure bag, and the fixing member is used to fix the normal saline bag so that the normal saline bag fits on the main pressure bag; during the operation, first, the supplementary pressure bag is filled with gas through the pressurizing member, a pressure difference is generated between the supplementary pressure bag and the main pressure bag, and the gas pushes the one-way valve to inflate the main pressure bag. When the main pressure bag reaches the expected pressure value, the inflation of the supplementary pressure bag is stopped. During the operation, as the normal saline decreases, the air pressure in the main pressure bag decreases. At this time, due to the pressure difference generated with the supplementary pressure bag, the supplementary pressure bag will replenish gas into the main pressure bag, so that the air pressure in the main pressure bag will not drop sharply due to the decrease of the normal saline, thus temporarily maintaining a relatively stable air pressure in the main pressure bag, enabling better assurance that when the air pressure cannot be supplemented in time, the main pressure bag can still apply pressure to the normal saline. When it is convenient for the operation or the circulating nurse to supplement the pressure, the supplement is carried out again to ensure the progress of the operation;

[0033] 2. When the air pressure in the main pressure bag decreases during the operation, a pressure difference is generated on both sides of the movable member. At this time, the air pressure in the supplementary pressure bag pushes the movable member to move away from the first ventilation member. The first ventilation member is connected to the second ventilation member, and the supplementary pressure bag replenishes gas into the main pressure bag, avoiding a sharp drop in the gas in the main pressure bag, maintaining the relative stability of the main pressure bag, and still being able to apply pressure to the normal saline relatively stably to ensure the progress of the operation;

[0034] 3. The movable rod guides the movement of the pressing part. When the gas in the supplementary pressure bag is greater than the gas in the main pressure bag and pushes the pressing part, it will also apply pressure to the movable rod at the same time, increasing the stress area of the movable part and enabling it to better push the movable part. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a plan view of the pressure stabilizing bag according to an embodiment of the present application;

[0036] Figure 2 is a top plan view of the cooperation between the main pressure bag and the covering member in the pressure stabilizing bag according to an embodiment of the present application;

[0037] Figure 3 is a cross-sectional view of the one-way valve in the pressure stabilizing bag according to an embodiment of the present application.

[0038] Reference numerals: 1, main pressure bag; 2, supplementary pressure bag; 3, one-way valve; 31, housing; 32, first ventilation member; 33, second ventilation member; 34, movable member; 341, movable rod; 342, pressing part; 343, elastic member; 4, fixing member; 5, pressurizing member; 6, covering member; 7, hanging rope; 8, ventilation hole; 9, movable hole; 10, hook; 11, accommodating cavity; 12, first trachea; 13, first three-way valve; 14, second trachea; 15, second three-way valve; 16, pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The following will further describe the present application in detail Figures 1-3 with reference to the accompanying drawings.

[0040] An embodiment of the present application discloses a pressure stabilizing bag. Referring to Figure 1 , the pressure stabilizing bag includes a main pressure bag 1, a supplementary pressure bag 2, a one-way valve 3, a fixing member 4 and a pressurizing member 5. The main pressure bag 1 applies pressure to the physiological saline, so that the physiological saline provides a water flow pressure to the ureteroscope during the operation; the fixing member 4 is arranged on the outer surface of the main pressure bag 1, and the fixing member 4 is used to fix the physiological saline bag so that the physiological saline bag fits on the main pressure bag 1; the pressurizing member 5 is used to pressurize the supplementary pressure bag 2. The one-way valve 3 is connected between the main pressure bag 1 and the supplementary pressure bag 2. In this embodiment, the one-way valve 3 is fixed to the main pressure bag 1 and the supplementary pressure bag 2 by plugging, and better sealing can be achieved by hot melting, adhesive bonding, etc. after plugging. In this embodiment, the main pressure bag 1 and the supplementary pressure bag 2 are also connected with a hanging rope 7, and the main pressure bag 1 and the supplementary pressure bag 2 can be suspended through the hanging rope 7.

[0041] When the air pressure in the supplementary pressure bag 2 is greater than that in the main pressure bag 1, the one-way valve 3 opens, and the supplementary pressure bag 2 pressurizes the main pressure bag 1. When the air pressure in the supplementary pressure bag 2 is less than or equal to that in the main pressure bag 1, the one-way valve 3 closes. During the operation, as the normal saline decreases, the air pressure in the main pressure bag 1 decreases accordingly. At this time, the one-way valve 3 opens, and the supplementary pressure bag 2 promptly fills the main pressure bag 1 with gas, temporarily maintaining the relative stability of the pressure in the main pressure bag 1 and still applying pressure to the normal saline, overcoming the problem in the prior art that when the normal saline decreases, the air pressure in the main pressure bag 1 drops sharply and gas cannot be replenished in time.

[0042] When it is convenient for the doctor or the circulating nurse, a complete replenishment is carried out, which can ensure the progress of the operation and the convenience of replenishing the pressure of the pressure bag. And by means of the supplementary pressure bag 2 for the main pressure bag 1, gas can be transported to the main pressure bag 1 more stably, reducing phenomena such as shaking and unstable air pressure of the main pressure bag 1, and overcoming the problems in the prior art that the gas instantaneously filled during direct inflation causes the pressure bag to be unstable, resulting in unstable water output and splashing of the normal saline, so that the normal saline can continuously output water more stably during the operation.

[0043] Refer to Figure 2 , in some embodiments, the fixing member 4 includes a covering member 6, and the covering member 6 is a sheet-like structure made of a soft material. The opposite sides of the covering member 6 are provided with through holes. In this embodiment, it is Figure 1 vertically through in the up-down direction. The normal saline bag is placed from above, and the lower part is for extending out the flushing strip connected to the normal saline. The flushing strip is connected to the ureteroscope to provide water flow pressure to the ureteroscope. The left and right ends of the covering member 6 can be fixed to the main pressure bag 1 by means of heat melting, bonding, etc. An accommodating cavity 11 is formed between the covering member 6 and the main pressure bag 1, and the normal saline is placed in the accommodating cavity 11. The covering member 6 applies pressure to the normal saline in the direction of the main pressure bag 1, enabling the main pressure bag 1 to better apply pressure to the normal saline.

[0044] In some embodiments, the fixing member 4 further includes a hook 10. The hook 10 is arranged in the accommodating cavity 11 and is connected to the main pressure bag 1. The hook 10 can be fixed to the main pressure bag 1 by means of bonding, etc., and is used to hang the normal saline bag, enabling the normal saline bag to be fixed conveniently.

[0045] Refer to Figure 3, in some embodiments, the one-way valve 3 includes a housing 31, a first vent member 32, a second vent member 33, and a movable member 34. In this embodiment, the one-way valve 3 is made of plastic. The two ends of the housing 31 are respectively communicated with the main pressure bag 1 and the supplementary pressure bag 2. In this embodiment, the housing 31 is fixed to the main pressure bag 1 and the supplementary pressure bag 2 by means of insertion, and is sealed by means of heat melting or bonding. The first vent member 32 and the second vent member 33 are arranged inside the housing 31. In this embodiment, the housing 31 has a cylindrical structure, and the first vent member 32 and the second vent member 33 have a cylindrical disc structure. The movable member 34 is movably arranged between the first vent member 32 and the second vent member 33, and the communication and blockage between the first vent member 32 and the second vent member 33 are realized through the movable member 34.

[0046] When the air pressure in the supplementary pressure bag 2 is greater than the air pressure in the main pressure bag 1, the movable member 34 opens, and the first vent member 32 and the second vent member 33 are communicated. In this embodiment, the first vent member 32 and the second vent member 33 are provided with vent holes 8 to realize the communication state when the movable member 34 is opened. A plurality of vent holes 8 are evenly spaced along the circumferential direction of the first vent member 32 and the second vent member 33; when the air pressure in the supplementary pressure bag 2 is less than or equal to the air pressure in the main pressure bag 1, the movable member 34 closes, that is, the movable member 34 presses against the first vent member 32, blocking the vent holes 8 of the first vent member 32 and blocking the communication between the first vent member 32 and the second vent member 33.

[0047] In some embodiments, the first vent member 32 and the second vent member 33 are both provided with movable holes 9. The movable member 34 includes a movable rod 341 and a pressing portion 342. In this embodiment, the movable rod 341 has a cylindrical structure, and the pressing portion 342 has a cylindrical disc structure. The diameter of the pressing portion 342 is smaller than the inner diameter of the housing 31. The movable rod 341 is arranged in the movable hole 9 and is slidably arranged with the first vent member 32 and the second vent member 33. The pressing portion 342 is connected to the movable rod 341. In this embodiment, the movable rod 341 passes through the pressing portion 342 and is perpendicularly and integrally formed with the pressing portion 342.

[0048] When the air pressure in the supplementary pressure bag 2 is greater than the air pressure in the main pressure bag 1, the pressing portion 342 is located between the first vent member 32 and the second vent member 33, and the first vent member 32 and the second vent member 33 are communicated through the circumferential side of the pressing portion 342; when the air pressure in the supplementary pressure bag 2 is less than or equal to the air pressure in the main pressure bag 1, the pressing portion 342 presses against the first vent member 32, blocking the communication between the first vent member 32 and the second vent member 33.

[0049] In some embodiments, the movable member 34 further includes an elastic member 343. In this embodiment, the elastic member 343 is a telescopic spring with a relatively small elastic coefficient. The elastic member 343 is sleeved on the movable rod 341, and its two ends are respectively connected to the pressing portion 342 and the second ventilation member 33. When the air pressure in the main pressure bag 1 is greater than or equal to the air pressure in the supplementary pressure bag 2, the elastic member 343 pushes the pressing portion 342 to press against the first ventilation member 32 due to the restoring force, blocking the first ventilation member 32 and the second ventilation member 33, and better avoiding air leakage in the main pressure bag 1.

[0050] Referring again to Figure 1 , in some embodiments, the pressurizing member 5 is a foot-operated air pump. Using a foot-operated air pump is beneficial for inflating the supplementary pressure bag 2 during the operation. When the circulating nurse fails to inflate the supplementary pressure bag 2 in time, the surgical staff only needs to use their feet to inflate it, without the need to change gloves, which is convenient and fast, and reduces the risk of surgical infection.

[0051] In some embodiments, a first air pipe 12 is connected between the pressurizing member 5 and the supplementary pressure bag 2, and a first three-way valve 13 is provided on the first air pipe 12. By opening the first three-way valve 13, the supplementary pressure bag 2 can be inflated through the pressurizing member 5. By closing the first three-way valve 13, the possibility of air leakage in the supplementary pressure bag 2 can be better minimized.

[0052] In some embodiments, a second air pipe 14 is connected to the main pressure bag 1, and a second three-way valve 15 is provided on the second air pipe 14. By opening the second three-way valve 15, the main pressure bag 1 can be deflated conveniently.

[0053] In some embodiments, a pressure gauge 16 is provided on the main pressure bag 1. Through the pressure gauge 16, the air pressure in the main pressure bag 1 can be monitored conveniently and in real time.

[0054] In other embodiments, the check valve 3 has a different structure from the check valve 3 in this embodiment. The check valve 3 includes a housing 31 and a movable valve plate. At this time, the check valve 3 is made of silica gel, and part of the movable valve plate is connected to the inside of the housing 31. When the gas in the main pressure bag 1 is less than that in the supplementary pressure bag 2, the movable valve plate opens for inflation. When the gas in the main pressure valve is greater than or equal to that in the supplementary pressure bag 2, the movable valve plate blocks the housing 31 due to the air pressure. When it is necessary to deflate the main pressure bag 1, the check valve 3 can also be pressed to open the movable valve plate and deflate from the supplementary pressure bag 2.

[0055] The implementation principle of a pressure-stabilizing bag in an embodiment of this application is as follows: The main pressure bag 1 is used to apply pressure to physiological saline, the supplementary pressure bag 2 is used to supplement pressure to the main pressure bag 1, and the fixing member 4 is used to fix the physiological saline bag so that the physiological saline bag fits on the main pressure bag 1; during the operation, first, the supplementary pressure bag 2 is filled with gas through the pressurizing member 5, a pressure difference is generated between the supplementary pressure bag 2 and the main pressure bag 1, and the gas pushes the one-way valve 3 to inflate the main pressure bag 1. When the main pressure bag 1 reaches the expected pressure value, the inflation of the supplementary pressure bag 2 is stopped. During the operation, as the physiological saline decreases, the air pressure in the main pressure bag 1 decreases. At this time, due to the pressure difference generated with the supplementary pressure bag 2, the supplementary pressure bag 2 will replenish gas into the main pressure bag 1, so that the air pressure in the main pressure bag 1 will not drop sharply due to the reduction of physiological saline, thereby temporarily maintaining a relatively stable air pressure in the main pressure bag 1, enabling better assurance that when the air pressure cannot be replenished in time, the main pressure bag 1 can still apply pressure to physiological saline. When it is convenient for the operation or the circulating nurse can replenish the pressure, replenishment is carried out again to ensure the progress of the operation.

[0056] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A pressure stabilizing bag, characterized in that: It includes a main pressure bag, a supplementary pressure bag, a one-way valve, a fixing part and a pressurizing part, wherein the one-way valve is connected between the main pressure bag and the supplementary pressure bag, the fixing part is arranged on the outer surface of the main pressure bag, and the pressurizing part is used to pressurize the supplementary pressure bag; When the air pressure of the supplementary pressure bag is greater than that of the main pressure bag, the one-way valve opens and the supplementary pressure bag pressurizes the main pressure bag; when the air pressure of the supplementary pressure bag is less than or equal to that of the main pressure bag, the one-way valve closes.

2. A pressure stabilizing bag according to claim 1, characterized in that: The fixing member includes a covering member, two opposite sides of the covering member are connected through each other, and a containing cavity is formed between the covering member and the main pressure bag.

3. A pressure stabilizing bag according to claim 2, characterized in that: The fixing member also includes a hook, which is arranged in the accommodating cavity and connected to the main pressure bag.

4. A pressure stabilizing bag according to claim 1, characterized in that: The one-way valve comprises a shell, a first vent, a second vent and a movable part, the two ends of the shell are respectively connected to the main pressure bag and the supplementary pressure bag, the first vent and the second vent are arranged in the shell, and the movable part is movably arranged between the first vent and the second vent; When the air pressure in the supplementary pressure bag is greater than the air pressure in the main pressure bag, the movable part opens and the first ventilator is connected to the second ventilator; when the air pressure in the supplementary pressure bag is less than or equal to the air pressure in the main pressure bag, the movable part closes, blocking the first ventilator from being connected to the second ventilator.

5. A pressure stabilizing bag according to claim 4, characterized in that: The first ventilating member and the second ventilating member are both provided with a movable hole, the movable member comprises a movable rod and a pressing portion, the movable rod is arranged in the movable hole and is slidably arranged with the first ventilating member and the second ventilating member, and the pressing portion is connected to the movable rod; When the air pressure in the supplementary pressure bag is greater than the air pressure in the main pressure bag, the pressing portion is located between the first ventilator and the second ventilator, and the first ventilator is connected to the second ventilator; when the air pressure in the supplementary pressure bag is less than or equal to the air pressure in the main pressure bag, the pressing portion presses against the first ventilator, blocking the first ventilator from being connected to the second ventilator.

6. A pressure stabilizing bag according to claim 5, characterized in that: The movable member further comprises an elastic member, which is sleeved on the movable rod, and has two ends respectively connected to the pressing portion and the second ventilating member.

7. A pressure stabilizing bag according to claim 1, characterized in that: The pressurizing member is a foot-operated air pump.

8. The pressure stabilizing bag according to claim 1, characterized in that: A first air pipe is connected between the pressurizing member and the supplementary pressure bag, and a first three-way valve is arranged on the first air pipe.

9. The pressure stabilizing bag according to claim 1, characterized in that: The main pressure bag is connected with a second air pipe, and the second air pipe is provided with a second three-way valve.

10. The pressure stabilizing bag according to claim 1, characterized in that: The main pressure bag is provided with a pressure gauge.

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