A continuous injection gas peritoneal balloon dilatation device with pressure measurement function

CN224853453UActive Publication Date: 2026-10-16THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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Patent Information

Application Number
CN202520435726.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-10-16
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

医护人员手术平时借助于简易的手套、注射器、尿管来临时组装囊扩张装置,耗费了一定的时间,且看不到注气扩张分离的压力,都是凭借经验撤离装置,注气时需要不断分离注射器重复打气,难免出现漏气的情况,也无法准确计算进气量

Benefits of technology

[0030] The beneficial effects of this disclosure are: the main gas injector can quickly inflate the airbag, while a micro gas injector can be used to inflate the airbag in small amounts, which allows for convenient fine-tuning by the user.

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Abstract

The utility model relates to medical supplies technical field, concretely provides a kind of with pressure measurement function continuous gas injection retroperitoneal balloon dilatation device, including main gas injector, trace gas injector, gasbag and pipeline assembly;The main gas injector and trace gas injector are communicated with gasbag by pipeline assembly;Pressure measurement device and exhaust device are provided on the pipeline assembly, and the pressure measurement device is between the exhaust device and gasbag;The exhaust device is used to discharge gas in pipeline assembly, to reduce the air pressure in the gasbag;The retroperitoneal balloon dilatation device with pressure measurement function can clearly understand the air pressure in the gasbag, and is simultaneously configured with trace gas injector, and medical staff can conveniently fine tune the air pressure in the gasbag.
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Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, specifically to a retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability. Background Technology

[0002] Retroperitoneal approach surgery is a minimally invasive surgical procedure. The balloon dilation approach creates an artificial operating space by physically separating retroperitoneal spaces, such as the space between Gerota's fascia and the psoas muscle, to perform surgical procedures. Clinically, it is commonly used for retroperitoneal kidney lesions and laparoscopic surgery of extraperitoneal tumors. Currently, surgical staff routinely assemble balloon dilation devices using simple gloves, syringes, and catheters, which is time-consuming and lacks visualization of the inflation and dissection pressure. Device removal relies on experience, and repeated injection requires constant disassembly of the syringe, inevitably leading to leakage and making accurate calculation of the air intake impossible. Therefore, there is an urgent need to develop a balloon dilation device with continuous inflation and air intake calculation capabilities for use in retroperitoneal approach surgery. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a retroperitoneal balloon dilation device with pressure measurement function that can be continuously inflated, which can clearly understand the air pressure inside the balloon and can conveniently fine-tune the air pressure inside the balloon.

[0004] To solve the above problems, the present invention adopts the following technical solution: A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation includes: a main gas injector, a micro gas injector, a balloon, and a tubing assembly.

[0005] Both the main gas injector and the micro gas injector are connected to the airbag via tubing assemblies.

[0006] The pipeline assembly is equipped with a pressure measuring device and an exhaust device, with the pressure measuring device located between the exhaust device and the airbag.

[0007] The exhaust device is used to discharge gas from the piping assembly to reduce the air pressure inside the airbag.

[0008] In one embodiment, the piping assembly includes a three-way valve, a main pipe, and a first branch pipe.

[0009] The three-way valve is located at one end of the main pipeline, and both the main gas injector and the micro gas injector are connected to the three-way valve.

[0010] The other end of the main pipe is detachably connected to one end of the first branch pipe.

[0011] The other end of the first branch pipe is integrally formed with the airbag, and the airbag is connected to the first branch pipe.

[0012] In one embodiment, the main pipeline has a second branch pipe connected to the pressure measuring device.

[0013] The second branch pipe is integrated with the main pipe.

[0014] In one embodiment, the exhaust device is provided with an adjustable nozzle at its outlet.

[0015] The adjustable nozzle is used to adjust the air flow rate.

[0016] In one embodiment, the micro-gas injector includes: a syringe, a piston, a push rod, a cap, and a handwheel.

[0017] The piston is located inside the injection cylinder, and the cap is fixedly connected to the injection cylinder.

[0018] The cover is provided with a screw hole, and the outer surface of the push rod is provided with an external thread. The push rod and the cover are connected through the screw hole and the external thread.

[0019] One end of the push rod is fixedly connected to the piston, and the other end of the push rod is fixedly connected to the handwheel.

[0020] The central axis of the screw hole coincides with the central axis of the injection cylinder.

[0021] In one embodiment, the main pipe is provided with a quick-connect male connector.

[0022] The first branch pipe is equipped with a quick-connect female connector.

[0023] The main pipe and the first branch pipe are detachably connected via the quick-connect male and quick-connect female connectors.

[0024] In one embodiment, the venting device is also used to control the on / off state of the piping assembly.

[0025] In one embodiment, it further includes a retainer; the retainer is located between the main gas injector and the micro gas injector.

[0026] Both the main gas injector and the micro gas injector are detachably connected to the cage.

[0027] In one embodiment, the retainer is provided with a finger hole located on one side of the main gas injector.

[0028] In one embodiment, the cage is provided with a hand support.

[0029] In one embodiment, the volume of the main gas injector is larger than the volume of the micro gas injector.

[0030] The beneficial effects of this disclosure are: the main gas injector can quickly inflate the airbag, while a micro gas injector can be used to inflate the airbag in small amounts, which allows for convenient fine-tuning by the user.

[0031] Because it is equipped with a pressure measuring device, users can easily understand the air pressure of the airbag and tubing components, which is very convenient. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the overall structure of the retroperitoneal balloon dilation device with pressure measurement function and continuous inflation is shown in Embodiment 1.

[0034] Figure 2 A schematic diagram of the structure of the retroperitoneal balloon dilation device with pressure measurement function and continuous inflation function of Embodiment 1 after disassembling the main gas injector and the micro gas injector is shown.

[0035] Figure 3 A cross-sectional view of a micro-gas injector is shown.

[0036] Figure 4 A partial structural schematic diagram of the retroperitoneal balloon dilation device with pressure measurement function and continuous inflation function of Embodiment 2 is shown.

[0037] In the picture: 10. Main gas injector; 20. Micro-gas injector; 21. Syringe; 22. Piston; 23. Push rod; 24. Cap; 25. Handwheel; 30. Airbag; 40. Piping assembly; 41. Three-way valve; 42. Main pipe; 43. First branch pipe; 44. Second branch pipe; 421. Quick coupling male; 431. Quick coupling female; 411. First check valve; 412. Second check valve; 50. Pressure measuring device; 60. Exhaust device; 61. Adjustable air nozzle; 70. Cage; 71. Finger hole; 72. Palm support; 73. First locking part; 74. Second locking part. Detailed Implementation

[0038] The exemplary embodiments of this disclosure can be modified in various ways. Therefore, various exemplary embodiments are shown and described in more detail in the accompanying drawings. However, it will be understood that this disclosure is not limited to the specific exemplary embodiments, but includes all modifications, equivalents, and substitutions without departing from the scope and spirit of this disclosure.

[0039] Retroperitoneal approach surgery is a minimally invasive surgical procedure, commonly used clinically for retroperitoneal kidney lesions and extraperitoneal tumor laparoscopic surgery. Currently, there are no dedicated dilation devices for retroperitoneal approach surgery; medical staff temporarily assemble balloon dilation devices using simple gloves, syringes, and urinary catheters. This embodiment provides a retroperitoneal balloon dilation device with pressure monitoring function and continuous inflation capability. This device offers high safety, saves time on temporary assembly, significantly improves the efficiency of medical staff, and demonstrates high scientific feasibility. Example

[0040] like Figures 1 to 3 As shown, this embodiment provides a retroperitoneal balloon dilation device with pressure measurement function and continuous inflation, including: a main gas injector 10, a micro gas injector 20, a balloon 30, and a tubing assembly 40. The volume of the main gas injector 10 is larger than the volume of the micro gas injector 20.

[0041] Both the main gas injector 10 and the micro gas injector 20 are connected to the airbag 30 via the tubing assembly 40. The tubing assembly 40 is equipped with a pressure measuring device 50 and an exhaust device 60. The pressure measuring device 50 is located between the exhaust device 60 and the airbag 30. The exhaust device 60 is used to discharge the gas in the tubing assembly 40, thereby reducing the air pressure in the airbag 30.

[0042] During use, the main gas injector 10 can quickly inflate the airbag, while a micro-gas injector can be used for small-volume inflation. The presence of a pressure measuring device allows users to easily monitor the air pressure in the airbag and tubing components, offering excellent convenience.

[0043] In this embodiment, the piping assembly 40 includes a three-way valve 41, a main pipe 42, and a first branch pipe 43.

[0044] The outlet of the three-way valve 41 is located at one end of the main pipeline 42. The other two inlets of the three-way valve 41 are respectively connected to the first one-way valve 411 and the second one-way valve 412. The main gas injector 10 and the micro gas injector 20 are respectively connected to the first one-way valve 411 and the second one-way valve 412. The other end of the main pipeline 42 is detachably connected to one end of the first branch pipeline 43.

[0045] The other end of the first pipe 43 is integrated with the airbag 30, and the airbag 30 is connected to the first pipe 43.

[0046] In this embodiment, the main pipe 42 has a second branch pipe 44, which is connected to the pressure measuring device 50; the second branch pipe 44 and the main pipe 42 are integrally formed.

[0047] Specifically, the pressure measuring device is a barometer.

[0048] In this embodiment, an adjustable nozzle 61 is provided on the air outlet of the exhaust device 60; the adjustable nozzle 61 is used to adjust the air flow rate.

[0049] Specifically, the adjustable air nozzle 61 uses an adjustable nozzle.

[0050] In this embodiment, the micro-gas injector 20 includes: a syringe 21, a piston 22, a push rod 23, a cap 24, and a handwheel 25.

[0051] The piston 22 is located inside the syringe 21, and the cover 24 is fixedly connected to the syringe 21. The cover 24 is provided with a screw hole (not shown), and the outer surface of the push rod 23 is provided with an external thread (not shown). The push rod 23 and the cover 24 are connected through the screw hole and the external thread.

[0052] One end of the push rod 23 is fixedly connected to the piston 22, and the other end of the push rod 23 is fixedly connected to the handwheel 25; the central axis of the screw hole coincides with the central axis of the syringe 21.

[0053] In use, the position of the piston 22 can be moved by turning the handwheel 25 to achieve micro-injection of air, and the air pressure in the airbag and pipeline assembly can be finely adjusted.

[0054] When using this product, the pressure range for children is 5-12 mmHg, and the pressure range for adults is 10-20 mmHg.

[0055] In this embodiment, a quick-connect male connector 421 is provided on the main pipe 42; a quick-connect female connector 431 is provided on the first branch pipe 43; the main pipe 42 and the first branch pipe 43 are detachably connected by the quick-connect male connector 421 and the quick-connect female connector 431.

[0056] In this embodiment, the exhaust device 60 is also used to control the on / off state of the pipeline assembly 40.

[0057] Specifically, the exhaust device 60 employs a three-way valve with one inlet and two outlets, and an adjustable nozzle 61 is connected to one of the outlets. Example

[0058] like Figure 3As shown, this embodiment provides a retroperitoneal balloon dilation device with pressure measurement function that can be continuously inflated. The difference between this embodiment and Embodiment 1 is that it also includes a retainer 70; the retainer 70 is located between the main gas injector 10 and the micro gas injector 20.

[0059] In this embodiment, both the main gas injector 10 and the micro gas injector 20 are detachably connected to the retainer 70.

[0060] Specifically, the retainer 70 is provided with a first locking part 73 and a second locking part 74. The first locking part is used to lock the main gas injector 10, and the second locking part is used to lock the micro gas injector 20.

[0061] In this embodiment, the retainer 70 is provided with a finger hole 71, which is located on one side of the main gas injector 10; the retainer 70 is provided with a palm support part 72.

[0062] By providing a retainer 70, the stability of the main gas injector 10 and the micro gas injector 20 can be improved, while also allowing the user to operate the main gas injector 10 and the micro gas injector 20 simultaneously with both hands.

[0063] The subject matter disclosed above is to be considered illustrative rather than restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments falling within the true spirit and scope of the inventive concept. Therefore, to the maximum extent permitted by law, the scope will be determined by the widest permissible interpretation of the appended claims and their equivalents, and should not be constrained or limited by the foregoing detailed description.

Claims

1. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability, characterized in that, include: Main gas injector, micro gas injector, airbag and tubing assembly; Both the main gas injector and the micro gas injector are connected to the airbag via tubing assemblies. The pipeline assembly is equipped with a pressure measuring device and an exhaust device, with the pressure measuring device located between the exhaust device and the airbag. The exhaust device is used to discharge gas from the piping assembly to reduce the air pressure inside the airbag.

2. The retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 1, characterized in that, The piping assembly includes: Three-way valve, main pipeline and first branch pipeline; The three-way valve is located at one end of the main pipeline, and both the main gas injector and the micro gas injector are connected to the three-way valve. The other end of the main pipe is detachably connected to one end of the first branch pipe; The other end of the first branch pipe is integrally formed with the airbag, and the airbag is connected to the first branch pipe.

3. The retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 2, characterized in that, The main pipeline has a second branch pipe, which is connected to the pressure measuring device. The second branch pipe is integrated with the main pipe.

4. The retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 1, characterized in that, The exhaust device is equipped with an adjustable nozzle at its outlet. The adjustable nozzle is used to adjust the air flow rate.

5. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 1, characterized in that, The micro-gas injector comprises: Injector, piston, push rod, cap, and handwheel; The piston is located inside the injection cylinder, and the cap is fixedly connected to the injection cylinder; The cover is provided with a screw hole, and the outer surface of the push rod is provided with an external thread. The push rod and the cover are connected through the screw hole and the external thread. One end of the push rod is fixedly connected to the piston, and the other end of the push rod is fixedly connected to the handwheel; The central axis of the screw hole coincides with the central axis of the injection cylinder.

6. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 2, characterized in that, The main pipeline is equipped with a quick-connect male connector; The first branch pipe is equipped with a quick-connect female connector; The main pipe and the first branch pipe are detachably connected via the quick-connect male and quick-connect female connectors.

7. The retroperitoneal balloon dilation device with pressure measurement function and continuous inflation according to claim 1, characterized in that, The exhaust device is also used to control the on / off state of the piping assembly.

8. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 1, characterized in that, Also includes: cage; The retainer is located between the main gas injector and the micro gas injector; Both the main gas injector and the micro gas injector are detachably connected to the cage.

9. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 8, characterized in that, The retainer is provided with a finger hole, which is located on one side of the main gas injector.

10. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 9, characterized in that, The cage is provided with a hand support.

11. A retroperitoneal balloon dilation device with pressure measurement function and continuous inflation capability according to claim 1, characterized in that, The volume of the main gas injector is larger than the volume of the micro gas injector.