CN211158072U

CN211158072U - Integrated self-closed visual posterior abdominal cavity and peritoneal outer cavity air bag dilator

Info

Publication number: CN211158072U
Application number: CN201920672229.8U
Authority: CN
Inventors: 王于勇; 葛宏伟
Original assignee: Hangzhou First Peoples Hospital
Current assignee: Hangzhou First Peoples Hospital
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-08-04
Anticipated expiration: 2029-05-10

Abstract

The utility model belongs to the technical field of the surgery makes abdominal cavity and peritoneum exocoel gasbag expansion. The purpose is to provide an integrated self-sealing visual posterior abdominal cavity and extraperitoneal cavity balloon dilator, which has the characteristics of simple structure, convenient operation and good safety. The technical scheme is as follows: the visual abdominal cavity and peritoneum exocoel gasbag expander of closed is proclaimed oneself to integral type, its characterized in that: the dilator comprises an inflator, an air bag, an eyepiece sheath and a vent pipe; the inflator, the vent pipe and the air bag are communicated in sequence; one end of the eyepiece sheath is closed and is fixed with the vent pipe and then is placed into the air bag together, and the other end of the eyepiece sheath is opened and is positioned outside the air bag so as to allow the laparoscope eyepiece to be freely inserted for observation.

Description

Integrated self-closed visual posterior abdominal cavity and peritoneal outer cavity air bag dilator

Technical Field

The utility model belongs to the technical field of abdominal cavity and peritoneum exocoel gasbag expansion behind the surgical operation preparation, specifically relate to a visual back abdominal cavity of integral type and peritoneum exocoel gasbag expander.

Background

Laparoscopic surgery has been widely developed and used in clinical work, and laparoscopic instruments have been well developed. The posterior abdominal cavity and the peritoneal external cavity are potential cavities of a human body, and the cavities need to be manually expanded by using an air bag during clinical operation, so that Trocar (Trocar) operation can be placed.

However, most of the dilatation of the posterior abdominal cavity and the extraperitoneal cavity depends on self-made dilators of surgeons, and has more defects:

1. the expansion of the artificially manufactured air bag is blind, the position, the depth and the expansion degree of an expansion gap cannot be observed, and the expansion gap error often occurs. For beginners, it is common that the expansion of the balloon into the muscle results in bleeding of the muscle layer and that the expansion range is too small, affecting the operation at the beginning.

2. The expansion of the artificial air bag requires two persons to operate, the air pump and the vent pipe are not tightly sealed, and the air leakage problem exists. If air leakage occurs, the volume of air entering the airbag cannot be accurately estimated; if the pump is too high, it may cause the airbag to rupture. In addition, the sizes of the air bags manufactured manually are different; if the balloon is too small, the cavity cannot be expanded sufficiently to interfere with subsequent operation.

3. The air inlet channel of the artificial air bag is a single channel, and if the air inlet channel is tightly tied with the air bag, the air duct is easy to close; usually, the air bag is inflated by using a syringe, and the air bag can be expanded to a proper size by repeatedly inflating, but the syringe and the air bag expander must be disconnected when the syringe is used for pumping air, so that the process also usually needs two persons for cooperative operation, air leakage is easy to occur, and a surgeon needs to consume a large amount of physical strength and waste operation time.

4. The air bag has no capacity indication, the air bag is easy to burst due to transitional inflation along with the expansion and the expansion of the air bag, fragments are generated after the air bag bursts, an operator needs to spend time to search for the fragments, the burst fragments of the air bag are often irregular and need to be compared repeatedly, even if the possibility that the fragments remain in the back abdominal cavity still exists, the possibility of postoperative complications is increased undoubtedly, and the pain of a patient is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough among the above-mentioned background art, provide the integral type from sealing visual back abdominal cavity and peritonaeum exocoel gasbag expander, this expander should have simple structure, convenient operation, the good characteristics of security.

The technical scheme of the utility model is that:

the visual abdominal cavity and peritoneum exocoel gasbag expander of closed is proclaimed oneself to integral type, its characterized in that: the dilator comprises an inflator, an air bag, an eyepiece sheath and a vent pipe; the inflator, the vent pipe and the air bag are communicated in sequence; one end of the eyepiece sheath is closed and is fixed with the vent pipe and then is placed into the air bag together, and the other end of the eyepiece sheath is opened and is positioned outside the air bag so as to allow the laparoscope eyepiece to be freely inserted for observation.

The air inlet hole of the air cylinder is provided with an air inlet one-way valve, the air outlet hole of the air cylinder is provided with an air outlet one-way valve, and the air outlet hole of the air cylinder is communicated with the vent pipe through the air outlet one-way valve; the vent pipe body extending into the air bag is provided with a plurality of vent holes.

The cylinder body of the inflator is provided with capacity scales.

The air outlet one-way valve is connected with the vent pipe through a detachable structure.

Among the detachable construction, the gas outlet of the check valve is given vent to anger in toper connector intercommunication, and the breather pipe cover is fixed on the connector and through the clamp.

The air bag is made of transparent plastic.

The eyepiece sheath is made of transparent plastic.

The utility model has the advantages that:

1) the whole expansion and inflation process of the air bag is completely carried out under a visual condition, so that the blindness of expansion is avoided;

2) the self-closed inflator is convenient and practical, the inflation process can be completed by single operation, and the operation time spent on inflation is obviously shortened;

3) the inflator and the vent pipe can be connected for a plurality of times, so that the secondary expansion is convenient.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the inflator in the present invention.

Fig. 3 is a schematic sectional structure view of the cylinder of the inflator of the present invention.

Fig. 4 is a schematic view of a part of the structure of the middle vent pipe of the present invention.

Fig. 5 is a schematic view of the cross-sectional structure of the middle air outlet check valve of the present invention.

Fig. 6 is a schematic top view of the structure of fig. 5.

Fig. 7 is a schematic bottom view of the structure of fig. 5.

Fig. 8 is an external view of the eyepiece of the laparoscope.

Fig. 9 is a schematic view of the usage state of the present invention.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.

As shown in fig. 1, the integrated self-closed visual posterior abdominal cavity and peritoneal outer cavity balloon dilator comprises an inflator 1, a balloon 2, an ocular sheath 4 and a ventilation tube 5.

As shown in fig. 2 and fig. 3, the inflator comprises a cylinder body 1.1, the cylinder body is provided with capacity scales (omitted in the figure), the side surface of the cylinder body is provided with an air inlet 1.6, the bottom of the cylinder body is provided with an air outlet 1.5, the cylinder body is internally provided with a piston 1.2 capable of moving vertically, a push rod 1.3 extends into the cylinder body from the top of the cylinder body and is fixed with the piston, a handle 1.4 is fixed at the top end of the push rod, the air inlet of the cylinder body is provided with an air inlet one-way valve 6-2, and the air outlet of the. The handle, the push rod and the piston can rotate around the central axis of the cylinder body.

As shown in fig. 5, in the air outlet one-way valve, a silica gel ball 6.1 is arranged in the inner cavity of the valve body, a round air inlet 6.2 is arranged at the top of the valve body, and a rectangular air outlet 6.3 is arranged at the bottom of the valve body. The structure of the air inlet one-way valve is the same as that of the air outlet one-way valve. The air outlet of the air inlet one-way valve is in butt joint with the air inlet hole of the barrel, and the air inlet of the air outlet one-way valve is in butt joint with the air outlet hole of the barrel.

The inflator, the vent pipe and the air bag are communicated in sequence. The air outlet one-way valve is connected with the vent pipe through a detachable structure. Among the detachable construction, the gas outlet of the check valve of giving vent to anger is equipped with toper connector 7 (the pointed end of connector is arranged down), and the import 5.2 cover of breather pipe is fixed with the connector on the connector and through clamp (omit in the figure).

The endoscope sheath is of a hollow tubular structure, the inner diameter of the endoscope sheath is larger than the outer diameter of an endoscope body 3-1 at the front end of the laparoscope eyepiece 3, and the top end of the endoscope sheath is opened and is positioned outside the air bag so as to allow the endoscope body of the laparoscope eyepiece to be freely inserted in the operation process; the bottom end of the eyepiece sheath is closed and fixed with the bottom 5.3 of the vent tube, and then is placed into the air bag together with the vent tube from the opening 2-1 of the air bag. The vent pipe body stretching into the air bag is provided with a plurality of vent holes 5.1 (comprising the bottom end of the pipe body and the side wall of the pipe body), so that the inflating and exhausting speeds can be increased. The part 2-1 of the opening of the air bag, the ocular sheath and the vent pipe are firmly connected and need to be tightly sealed (preferably sealed by sealant) so as to prevent the expansion effect from being influenced by air leakage.

The air bag is made of high-tension transparent plastic, and the maximum inflation capacity of the air bag is preferably 1000 ml. The eyepiece sheath is of a hollow tubular structure (preferably 10mm in internal diameter) and is made of a rigid transparent plastic.

The utility model discloses a theory of operation is: when the handle is pulled upwards, the piston is pulled to move upwards, the air outlet one-way valve is closed (the silicone ball of the air outlet one-way valve blocks the air inlet) and the air inlet one-way valve is opened, and air is sucked into the air cylinder through the air inlet one-way valve (a gap exists between the silicone ball of the air inlet one-way valve and the rectangular air outlet); when the handle is pushed downwards, the piston is pushed to move downwards, the air inlet one-way valve is closed (the silica gel ball of the air inlet one-way valve blocks the air inlet), the air outlet one-way valve is opened, and air is discharged out of the air cylinder through the air outlet one-way valve (a gap exists between the silica gel ball of the air outlet one-way valve and the rectangular air outlet); repeatedly pushing the handle to inflate the air bag to expand the air bag body; when the air needs to be deflated, the air chamber can be deflated by disconnecting the air cylinder and the vent pipe through the detachable structure; if the secondary expansion is needed, the inflator can be communicated with the vent pipe again through the detachable structure for inflation. The operator can insert the laparoscope eyepiece into the eyepiece sheath (see fig. 9, the diameter of the observation part at the top end of the laparoscope eyepiece is larger than that of the eyepiece sheath) for observation while inflating and deflating, and the inflation amount or the deflation amount is adjusted according to the observed condition.

The utility model discloses can guarantee to accomplish the expansion process under complete visual condition, make things convenient for operation doctor's operation, prevent to expand the clearance mistake, expand too much or too little problem, effectively avoid the blindness nature of expansion in the past, improve work efficiency, increase the operation security.

Claims

1. The visual abdominal cavity and peritoneum exocoel gasbag expander of closed is proclaimed oneself to integral type, its characterized in that: the dilator comprises an air cylinder (1), an air bag (2), an ocular sheath (4) and a vent pipe (5); the inflator, the vent pipe and the air bag are communicated in sequence; one end of the eyepiece sheath is closed and is fixed with the vent pipe and then is placed into the air bag together, and the other end of the eyepiece sheath is opened and is positioned outside the air bag so as to allow the laparoscope eyepiece to be freely inserted for observation.

2. The integrated self-sealing visual posterior and extraperitoneal balloon dilator of claim 1, wherein: the air inlet hole of the air cylinder is provided with an air inlet one-way valve (6-1), the air outlet hole is provided with an air outlet one-way valve (6-2), and the air outlet hole of the air cylinder is communicated with the vent pipe through the air outlet one-way valve; the vent pipe body extending into the air bag is provided with a plurality of vent holes (5.1).

3. The integrated self-sealing visual posterior and extraperitoneal balloon dilator of claim 2, wherein: the cylinder body of the inflator is provided with capacity scales.

4. The integrated self-sealing visual posterior and extraperitoneal balloon dilator of claim 3, wherein: the air outlet one-way valve is connected with the vent pipe through a detachable structure.

5. The integrated self-sealing visual posterior and extraperitoneal balloon dilator of claim 4, wherein: in the detachable structure, the conical connector (7) is communicated with the air outlet of the air outlet one-way valve, and the vent pipe is sleeved on the connector and fixed through the hoop.

6. The integrated self-sealing visual posterior and extraperitoneal balloon dilator of claim 5, wherein: the air bag is made of transparent plastic.

7. The integrated self-sealing visual posterior and extraperitoneal balloon dilator of claim 6, wherein: the eyepiece sheath is made of transparent plastic.