CN215084042U - Expanding air bag for expander - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, and discloses an expansion air bag for an expander, which comprises an air pipe and an air bag, wherein the first end of the air pipe is inserted into the air bag and communicated with the air bag, the second end of the air pipe is used for connecting an injector, and a first one-way valve is arranged inside the air pipe; and an exhaust hole is formed in the pipe wall between the second end of the vent pipe and the first one-way valve, and a second one-way valve is arranged in the exhaust hole. Because the utility model discloses an expansion gasbag that expander was used includes breather pipe and gasbag two parts, and both seal and connect, and sealed effect is better, for direct at the terminal direct cover of expander sheath or expander core establish the way of gasbag, has the advantage that the expansion effect is good and sealing performance is outstanding.

Description

Expanding air bag for expander

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an expansion air bag for an expander.

Background

Currently, laparoscopic techniques are widely used in clinical work, and some of the procedures require operations in the extraperitoneal cavity, such as retrolaparoscopic surgery in urinary surgery, prostate cancer surgery, and inguinal hernia surgery, etc. Because the extraperitoneal cavity is a potential cavity of a human body, the cavity can be manually expanded by using a tool such as an expansion air bag and the like during clinical operation, so that a certain operation space is obtained.

However, most of the currently used dilation balloons are directly tied to the tail end of the dilator sheath, and the dilation effect is poor in the dilation process, specifically, if the dilation balloon is directly tied to the tail end of the dilator sheath, the dilation balloon and the end of the dilator sheath need to be squeezed into the skin incision together, and then an injector is connected to perform dilation, so that the inconvenience of squeezing into the skin incision is easily caused, or the dilation effect is not obvious after the dilation balloon is squeezed into the skin incision.

Therefore, there is a high necessity for an expanding balloon for an expander to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an expansion gasbag that expander was used for solve among the prior art relatively poor problem of expansion effect.

In order to solve the technical problem, the utility model provides an expansion air bag for an expander, which comprises an air pipe and an air bag, wherein the first end of the air pipe is inserted into the air bag and communicated with the air bag, the second end of the air pipe is used for connecting an injector, and a first one-way valve is arranged inside the air pipe; and an exhaust hole is formed in the pipe wall between the second end of the vent pipe and the first one-way valve, and a second one-way valve is arranged in the exhaust hole.

Preferably, the vent pipe is a soft flexible pipe.

Preferably, the bladder is integrally formed with the vent tube.

Preferably, the part of the vent pipe inserted in the air bag is provided with a plurality of small holes for communicating the vent pipe with the air bag.

Preferably, the portion of the vent tube located within the air-bag is arranged with a plurality of annular grooves in the axial direction.

Preferably, a scale is disposed on an outer circumferential surface of the vent pipe in an axial direction thereof.

Implement the utility model discloses an expansion gasbag that expander was used, compare with prior art, its beneficial effect lies in:

after the dilator sheath is extruded into the skin incision, the expanding air bag penetrates through the through hole in the dilator sheath, and the axial length of the vent pipe is greater than that of the dilator sheath, so that one end of the air bag and the vent pipe, which are sealed in the air bag, can extend into the skin incision, then the dilator sheath is withdrawn, the other end of the vent pipe injects gas into the vent pipe through the injector, when the injector is used for inhaling gas, the first one-way valve is closed, the second one-way valve is opened, and the gas enters the injector from the outside through the second one-way valve; when the injector injects air into the air bag for expansion, the second one-way valve is closed, the first one-way valve is opened, and the air enters the air bag through the first one-way valve. The injector repeatedly sucks air and injects air, so that the air sac is expanded. After completing the gas injection expansion, the operator can press the first one-way valve on the hard vent pipe by using fingers, so that the valve is deformed to lose the closing function, the one-way gas passing limit is released, and the gas can be discharged from the first one-way valve through the pipe orifice of the hard vent pipe. In conclusion, because one end of the vent pipe is sealed in the air bag and the position of the air bag can be adjusted by moving the vent pipe, the air bag does not need to be pulled out from the skin incision and is extruded into the skin incision again after being connected with the expanding air bag in the whole expanding process, but the air bag of the expanding air bag extends into the skin incision along the through hole of the expander sheath, the operation is simpler and more convenient, and the expanding air bag is prevented from being incorrectly placed in the skin incision due to the extrusion, so that the expanding effect is not ideal.

Drawings

FIG. 1 is a schematic view of a vent pipe;

fig. 2 is a schematic overall structure diagram of an embodiment of the present invention;

figure 3 is a first process diagram in use of an embodiment of the invention;

figure 4 is a second process diagram in use of an embodiment of the invention;

fig. 5 is a cross-sectional view of a vent tube.

In the figure, the position of the upper end of the main shaft,

100. in vitro, 200, in vivo;

1. the air tube, 2, the air bag, 4, the small hole, 5, the second one-way valve, 6, the annular groove, 7, the dilator sheath, 8 and the first one-way valve.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "first", "second", and the like are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides an expanding air bag for an expander, including a vent pipe 1 and an air bag 2, wherein one end of the vent pipe 1 is sealed in the air bag 2, the other end is used for connecting an injector, and a first one-way valve 8 is arranged in the vent pipe 1; an exhaust hole is arranged on the pipe wall between the second end of the vent pipe 1 and the first one-way valve 8, and a second one-way valve 5 is arranged in the exhaust hole.

Based on above technical scheme, the embodiment of the utility model discloses expansion gasbag that expander was used, it is after accomplishing preliminary expansion separation peritoneum exocoel clearance, wear to establish expander sheath or expander core through will expanding the gasbag, and the axial length of breather pipe 1 is greater than the axial length of expander sheath or expander core, and stretch into the peritoneal cavity adventitia clearance with breather pipe 1 one end of sealing in gasbag 2 in, the other end passes through the syringe and injects gas in to breather pipe 1, and through the flow direction of 8 control gas on the first check valve, gas enters into in gasbag 2 behind the breather pipe 1, gasbag 2 is bloated under gaseous effect, reach the purpose in further expansion peritoneum exocoel clearance. Because one end of the vent pipe 1 is sealed in the air bag 2 and the position of the air bag 2 can be adjusted by moving the vent pipe 1, the expansion effect is better.

Preferably, the ventilation tube 1 is a flexible and bendable ventilation tube to meet the requirements of clinical surgery.

Preferably, gasbag 2 and breather pipe 1 integrated into one piece for whole leakproofness is good, avoids frequently dismantling the leakproofness that gasbag 2 caused and reduces.

Preferably, the part of the vent pipe 1 arranged in the airbag 2 is provided with a plurality of small holes for communicating the vent pipe 1 with the airbag 2, so as to uniformly release gas and uniformly inflate the airbag 2.

Preferably, the plurality of annular grooves 6 are uniformly distributed at intervals, or arranged according to a certain rule, and in this embodiment, the annular grooves 6 are preferably provided at 1/4, 1/2 of the portion of the vent tube 1 disposed in the balloon 2, so as to meet the requirements of most operations. Wherein the annular groove 6 functions as: the operator can ligate the air bag on the corresponding annular groove by using a thin line according to the requirement of the operation, so as to adjust the size of the air bag 2 and expand the speed of the abdominal cavity adventitia gap.

Preferably, first one-way valve 8 only allows gas to flow from the syringe into ventilation tube 1, whereas gas in ventilation tube 1 cannot flow out of ventilation tube 1 during expansion of the extraperitoneal space.

Preferably, the ventilation tube 1 is provided with a scale along its outer surface in the axial direction for indicating the position depth of the expanded extraperitoneal cavity space.

The utility model discloses an expanding gasbag cooperation expander sheath that expander was used and expander core's application method as follows:

referring to fig. 3 and 4, before use, the skin, the subcutaneous tissue and the fascia are manually incised.

When the dilator is used in the first step, the dilator core penetrates through the dilator sheath 7, then a laparoscope is inserted into the dilator core with a blind hole structure, the dilator sheath 7 is inserted to the skin incision, and then carbon dioxide gas is filled into the circumferential gaps of the dilator core and the dilator sheath 7 through the air inlet pipeline on the dilator sheath 7 so as to be used for preliminarily separating and expanding the gap of the extraperitoneal cavity. Because the end of the expander core far away from the blind hole is transparent, the position can be guided and accurately positioned through a laparoscope when the extraperitoneal cavity gap is expanded.

When the inflatable dilator is used in the second step, after the primary separation is completed, the dilator core and the laparoscope are withdrawn (the dilator core and the laparoscope are taken out from the dilator sheath 7 and only the dilator sheath 7 is left), the dilating air bag comprises an air bag 2 and a vent pipe 1, the vent pipe 1 is arranged in the air bag 2, and the other end of the vent pipe is connected with an injector and is used for injecting gas into the vent pipe 1 and expanding the air bag 2; specifically, because the axial length of the vent pipe 1 is greater than that of the dilator sheath 7, when the expansion air bag penetrates through the dilator sheath 7, the air bag 2 can be placed at the position of the peritoneal outer cavity to be expanded, the other end of the air bag is led out and pushed out from the gap between the peritoneal outer membranes of the dilator sheath 7 and withdrawn from the use along the vent pipe 1, and then the air is injected into the vent pipe 1 by using the injector to expand the air bag 2, so that the peritoneal gap is further expanded to meet the space requirement required by the operation; in particular, when the injector is used for sucking air, the first one-way valve 8 is closed, the second one-way valve 5 is opened, and gas enters the injector from the outside through the second one-way valve 5; when the injector injects air into the air bag 2 for expansion, the second one-way valve 5 is closed, the first one-way valve 8 is opened, and the air enters the air bag 2 through the first one-way valve 8. The injector repeatedly aspirates and inflates the balloon 2. In particular, the ventilation tube 1 is provided with a graduated scale for indicating the depth of the expanded extraperitoneal space.

Finally, after completing the gas injection expansion, the operator can press the first one-way valve 8 on the vent pipe 1 with fingers, so that the valve is deformed to lose the closing function, and the one-way gas passing restriction is released, so that the gas can be discharged from the first one-way valve 8 through the pipe orifice of the vent pipe 1. And finally, after the gas in the air bag 2 and the vent pipe 1 is exhausted, the expansion air bag can be pulled out from the gap of the outer membrane of the abdominal cavity, the whole expansion process is completed, and a corresponding operation space is obtained.

Use the embodiment of the utility model discloses an expansion gasbag that expander was used, because it includes breather pipe 1 and 2 two parts of gasbag, and both seal and connect, sealed effect is better, for direct at the terminal direct cover of expander sheath or expander core establish the way of gasbag, has the effectual advantage of expansion.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (6)

1. An expansion air bag for a dilator is characterized by comprising an air pipe and an air bag, wherein a first end of the air pipe is inserted into the air bag and communicated with the air bag, a second end of the air pipe is used for connecting a syringe, and a first one-way valve is arranged inside the air pipe; and an exhaust hole is formed in the pipe wall between the second end of the vent pipe and the first one-way valve, and a second one-way valve is arranged in the exhaust hole.

2. A dilatation balloon for an expander as claimed in claim 1 wherein the vent tube is a flexible tube.

3. An expanding balloon for an expander as defined in claim 2, wherein said balloon is integrally formed with said vent tube.

4. An expanding balloon for an expander as defined in claim 3, wherein a portion of said vent tube inserted into said balloon is provided with a plurality of small holes communicating said vent tube with said balloon.

5. An expanding balloon for an expander as defined in claim 4, wherein the portion of said vent tube disposed within said balloon is axially disposed with a plurality of annular grooves.

6. An expanding balloon for an expander as defined in claim 5, wherein a scale is disposed on an outer peripheral surface of said vent tube in an axial direction thereof.

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