Posterior abdominal cavity air bag expansion device

Abstract

The utility model relates to a posterior abdominal cavity air bag expansion device, belongs to the technical field of medical instruments, and solves the problem that an existing air bag expander cannot simply, conveniently and quickly deflate an air bag. The device comprises a dilation unit, an air pipe and a connector unit, the dilation unit is connected with the connector unit through the air pipe, and air in the dilation unit can be exhausted through the connector unit. According to the utility model, the quick release valve is taken down from the inflation interface for exhausting, and the air in the expansion unit can be quickly exhausted without the obstruction of a one-way valve.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a retroperitoneal airbag expansion device. Background Art

[0002] Laparoscopic technology has the advantages of clear surgical field, precise anatomical level, less damage, less bleeding and fewer complications, and has been gradually applied to multiple clinical disciplines. Retroperitoneoscopic surgery can quickly and directly enter the surgical field, separate less tissue, cause less damage, have little impact on intestinal function, and allow patients to recover quickly after surgery. It also overcomes the limitations of previous medical history in the abdominal cavity and avoids contamination of the abdominal cavity and tumor implantation.

[0003] The retroperitoneal cavity is a potential cavity in the human body. In practical applications, the cavity needs to be expanded with a balloon dilator first, and then the balloon needs to be deflated and the balloon dilator needs to be quickly removed from the retroperitoneal cavity for subsequent operations.

[0004] Existing balloon dilators use a one-way valve to prevent balloon gas from escaping. When the one-way valve is opened, the balloon is deflated, which is slow and prolongs the operation time. Alternatively, a deflation valve is set separately for deflation, which has a complex structure and is inconvenient to operate, and still prolongs the operation time.

[0005] Therefore, there is an urgent need for a retroperitoneal airbag dilation device that can easily and quickly deflate the airbag of the airbag dilator. Utility Model Content

[0006] In view of the above analysis, an embodiment of the utility model aims to provide a retroperitoneal airbag dilation device to solve the problem that the existing airbag dilator cannot deflate the airbag easily and quickly.

[0007] The purpose of this utility model is mainly achieved through the following technical solutions:

[0008] A retroperitoneal airbag dilation device comprises a dilation unit, a trachea and an interface unit, wherein the dilation unit is connected to the interface unit through the trachea, and gas in the dilation unit can be discharged through the interface unit;

[0009] The interface unit includes an air charging interface and a quick-release valve; the air charging interface includes a snap-fit ​​groove, and the quick-release valve includes a snap-fit ​​protrusion;

[0010] The snap-fit ​​groove is an L-shaped snap-fit ​​groove, which includes an axial half groove and a circumferential half groove. The snap-fit ​​protrusion can be first connected to the axial half groove and then connected to the circumferential half groove, so as to snap-fit ​​the quick-release valve to the inflation interface.

[0011] Furthermore, the expansion unit includes an airbag and a support tube, both ends of the support tube are connected to the inner wall of the airbag, and the support tube is fixedly connected to the trachea.

[0012] Furthermore, the support tube is a hard support tube.

[0013] Furthermore, the expansion unit further comprises a vent hole, and the vent hole is arranged on the side wall of the support tube.

[0014] Furthermore, the inflation interface further comprises an interface sleeve, one end of which is connected to the air pipe, and the clamping groove is arranged on the inner wall of the interface sleeve.

[0015] Furthermore, the quick-release valve also includes the valve body, and the snap-fit ​​protrusion is arranged on the outer wall of the valve body; one end of the valve body is connected to the inflation device, and this end is the connecting end; the other end of the valve body is connected to the inflation interface, and this end is the inflation end.

[0016] Furthermore, the outer diameter of the connecting end is greater than the outer diameter of the inflation end.

[0017] Furthermore, the quick-release valve also includes a flap, and the flap is arranged on the inner wall of the valve body.

[0018] Furthermore, there are multiple valves.

[0019] Furthermore, there are multiple ventilation holes.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] (1) The clamping protrusion of the utility model can be quickly separated from the clamping groove, so that the quick-release valve can be quickly separated from the inflation interface. Because the valve body has been removed, the gas in the expansion unit can be quickly discharged through the inflation interface; the operation of removing the quick-release valve from the inflation interface for exhaust is simple, and because there is no obstruction of the one-way valve, the gas in the expansion unit can be quickly discharged;

[0022] (2) The support tube of the utility model can support the airbag, prevent the airbag from bending or twisting during insertion into the posterior abdominal cavity, and avoid the situation where the posterior abdominal cavity expansion effect is not ideal due to the airbag not expanding or not fully expanding, thereby ensuring the smooth progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the longitudinal section structure of the expansion unit;

[0026] Figure 3 It is a schematic diagram of the longitudinal section structure of the inflation interface;

[0027] Figure 4 It is the overall structural schematic diagram of the quick-release valve;

[0028] Figure 5 It is a schematic diagram of the longitudinal section structure of the quick-release valve.

[0029] Reference numerals:

[0030] 1-expansion unit; 2-trachea; 3-inflation interface; 4-quick release valve; 11-air bag; 12-support tube; 13-vent; 31-interface sleeve; 32-clamping groove; 41-valve body; 42-clamping protrusion; 43-valve. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0032] A specific embodiment of the utility model is as follows Figure 1 As shown, a retroperitoneal airbag dilation device (hereinafter referred to as the dilation device) is disclosed, including an dilation unit 1, a trachea 2 and an interface unit. The dilation unit 1 is connected to the interface unit through the trachea 2. The user inflates the dilation unit 1 through the interface unit and the trachea 2 to expand the dilation unit 1, thereby expanding the retroperitoneal cavity; the gas in the dilation unit 1 can be discharged through the interface unit.

[0033] Preferably, if Figure 2 and Figure 3 As shown, the interface unit includes an inflation interface 3 and a quick-release valve 4. The inflation interface 3 is connected to the trachea 2. The quick-release valve 4 can be connected to the inflation interface 3. The quick-release valve 4 is used to connect to the inflation device and prevent the gas in the expansion unit 1 from escaping.

[0034] Preferably, the inflation interface 3 includes an interface sleeve 31 and a clamping groove 32, one end of the interface sleeve 31 is connected to the trachea 2, and the other end of the interface sleeve 31 is connected to the quick release valve 4. The clamping groove 32 is arranged on the inner wall of the interface sleeve 31, and is used to connect with the quick release valve 4.

[0035] Preferably, if Figure 4 and Figure 5 As shown, the quick-release valve 4 includes a valve body 41 and a clamping protrusion 42 . The valve body 41 can be connected to the interface sleeve 31 , and the clamping protrusion 42 is used to connect to the clamping groove 32 , so as to clamp and connect the quick-release valve 4 to the inflation interface 3 .

[0036] Preferably, the clamping groove 32 is an L-shaped clamping groove, and the clamping groove 32 includes an axial half groove and a circumferential half groove. The clamping protrusion 42 can be first connected to the axial half groove and then connected to the circumferential half groove, so that the quick-release valve 4 is clamped and connected to the inflation interface 3, and the quick-release valve 4 can be prevented from being separated from the inflation interface 3; the clamping protrusion 42 is separated from the clamping groove 32, and the quick-release valve 4 can be separated from the inflation interface 3, because the valve body 41 has been removed, and the gas in the expansion unit 1 can be quickly discharged through the inflation interface 3. The operation of removing the quick-release valve 4 from the inflation interface 3 is simple, and because there is no obstruction of the one-way valve, the gas in the expansion unit 1 can be quickly discharged.

[0037] Preferably, one end of the valve body 41 is connected to the inflation device, and this end is the connection end; the other end of the valve body 41 is connected to the inflation interface 3 and is the inflation end. The outer diameter of the connection end is larger than the outer diameter of the inflation end, and the action of inserting the valve body 41 into the interface sleeve 31 is simple, easy to operate, and saves surgical time.

[0038] Preferably, if Figure 5 As shown, the quick-release valve 4 includes a one-way valve, which is a flapper 43, and the flapper 43 is arranged on the inner wall of the valve body 41. There are multiple flappers 43, and the multiple flappers 43 are used to prevent air from flowing from the inflation end to the connection end.

[0039] Preferably, if Figure 2 As shown, the expansion unit 1 includes an airbag 11 and a support tube 12, both ends of the support tube 12 are connected to the inner wall of the airbag 11, and the support tube 12 is fixedly connected to the trachea 2. The support tube 12 is used to support the airbag 11 to prevent the airbag 11 from bending or twisting during insertion into the posterior abdominal cavity, to avoid poor posterior abdominal cavity expansion effect caused by the airbag 11 not expanding or not fully expanding, and to ensure smooth operation.

[0040] Preferably, the support tube 12 is a hard support tube, which provides good support for the airbag 11 and enables the expansion unit 1 to be inserted into the posterior abdominal cavity without the aid of instruments during surgery.

[0041] Preferably, the expansion unit 1 further comprises a vent hole 13, which is arranged on the side wall of the support tube 12. There are a plurality of vent holes 13, which are used for inflating and exhausting the airbag 11.

[0042] Compared with the prior art, the snap-fit ​​protrusion 42 of the utility model can quickly disengage from the snap-fit ​​groove 32, so that the quick-release valve 4 can quickly disengage from the inflation interface 3. Since the valve body 41 has been removed, the gas in the expansion unit 1 can be quickly discharged through the inflation interface 3; the quick-release valve 4 is easy to remove from the inflation interface 3, and since there is no obstruction of the one-way valve, the gas in the expansion unit 1 can be quickly discharged; the support tube 12 can support the airbag 11 to prevent the airbag 11 from bending or twisting during insertion into the retroperitoneal cavity, thereby avoiding the situation where the retroperitoneal expansion effect is not ideal due to the airbag 11 not expanding or not fully expanding, thereby ensuring the smooth progress of the operation.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A retroperitoneal balloon dilation device, characterized in that: It comprises an expansion unit (1), an air pipe (2) and an interface unit, wherein the expansion unit (1) is connected to the interface unit via the air pipe (2), and the gas in the expansion unit (1) can be discharged via the interface unit; The interface unit comprises an inflation interface (3) and a quick-release valve (4); the inflation interface (3) comprises a snap-fit ​​groove (32), and the quick-release valve (4) comprises a snap-fit ​​protrusion (42); The snap-fit ​​groove (32) is an L-shaped snap-fit ​​groove, and the snap-fit ​​groove (32) comprises an axial half groove and a circumferential half groove. The snap-fit ​​protrusion (42) can first be connected to the axial half groove and then to the circumferential half groove, so as to snap-fit ​​the quick-release valve (4) to the inflation interface (3).

2. The retroperitoneal balloon dilation device according to claim 1, characterized in that: The expansion unit (1) comprises an air bag (11) and a support tube (12), both ends of the support tube (12) are connected to the inner wall of the air bag (11), and the support tube (12) is fixedly connected to the trachea (2).

3. The retroperitoneal balloon dilation device according to claim 2, characterized in that: The support tube (12) is a hard support tube.

4. The retroperitoneal balloon dilation device according to claim 2, characterized in that: The expansion unit (1) further comprises a vent hole (13), wherein the vent hole (13) is arranged on the side wall of the support tube (12).

5. The retroperitoneal balloon dilation device according to claim 1, characterized in that: The inflation interface (3) further comprises an interface sleeve (31), one end of the interface sleeve (31) is connected to the air pipe (2), and the clamping groove (32) is arranged on the inner wall of the interface sleeve (31).

6. The retroperitoneal balloon dilation device according to claim 1, characterized in that: The quick-release valve (4) further comprises a valve body (41), the clamping protrusion (42) being arranged on the outer wall of the valve body (41); one end of the valve body (41) is connected to the inflation device, and this end is the connection end; the other end of the valve body (41) is connected to the inflation interface (3), and this end is the inflation end.

7. The retroperitoneal balloon dilation device according to claim 6, characterized in that: The outer diameter of the connecting end is greater than the outer diameter of the inflation end.

8. The retroperitoneal balloon dilation device according to claim 6, characterized in that: The quick-release valve (4) further comprises a flapper (43), wherein the flapper (43) is arranged on the inner wall of the valve body (41).

9. The retroperitoneal balloon dilation device according to claim 8, characterized in that: The number of the valves (43) is multiple.

10. The retroperitoneal balloon dilation device according to claim 4, characterized in that: There are multiple vent holes (13).

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