CN111887910A - Abdominal cavity dilator - Google Patents

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an abdominal cavity dilator. The endoscope dilator comprises a guide pipe and a dilator main body which are connected with each other, wherein an operation channel for an endoscope to pass through is arranged in the guide pipe, the dilator main body comprises a plurality of dilator rods connected with the guide pipe, an inflation dilator assembly which can enable the dilator rods to rotate away from the axis of the guide pipe after being inflated with air is connected onto the dilator rods, the inflation dilator assembly is communicated with an air source through an air guide pipe, a dilator space can be formed on the inner side of the dilator rods by rotating the dilator rods, and the dilator space is communicated with the operation channel. The invention can utilize the inflatable spreading component to drive the spreading rod to form a spreading cavity in the operation process, thereby spreading the abdominal wall and avoiding high-pressure CO₂The use of (3) has simple structure and convenient use, does not have tiny parts, and improves the safety of the operation.

Description

Abdominal cavity dilator

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an abdominal cavity dilator.

Background

The laparoscopic surgery is widely applied to abdominal cavity surgery at present, and compared with the traditional surgery, the laparoscopic surgery has the advantages of small surgical wound, easy postoperative recovery, light pain, small disturbance to abdominal cavity viscera, less incision infection or fat liquefaction and the like. At present, before laparoscopic surgery, the establishment of artificial pneumoperitoneum is mostly adopted, namely, a large amount of high-pressure C is blown into a surgical siteO₂The peritoneal wall is separated from the visceral organs, the abdominal cavity is enlarged to provide an operation space, and the damage to the organs is avoided when the trocar is punctured into the abdominal cavity. But high pressure CO₂Increase the load on the heart and lung due to CO₂Easily soluble, high amount of CO₂The untimely elimination of the medicament can cause the disorder of acid-base balance of body fluid, and the high-pressure pneumoperitoneum can cause the discomfort such as abdominal distension, difficult breathing and the like of patients, even be difficult to bear, and especially for patients who have serious abnormal heart-lung function and old patients who cannot bear the pneumoperitoneum, the artificial pneumoperitoneum can bring great danger.

In response to this problem, research and study have been conducted in long-term practice of production and living, for example, the chinese utility model patent discloses a traction type abdominal wall distracter [ application No.: 201721167326.9], the utility model comprises a hollow pipe channel, a movable end which can slide up and down is sleeved outside the pipe channel, the far end of the pipe channel is provided with a distraction device which is connected with the bottom of the movable end through a flexible rope and controls the distraction device to open or close through the up-and-down sliding of the movable end; the proximal end of the tube channel is provided with a handheld end, the handheld end is annular and integrally sleeved on the proximal end of the tube channel, and the outer side of the handheld end is provided with a protruding locking block; the moving end is integrally in an inverted convex shape, a through hole is formed in the moving end, and the inner diameter of the through hole is matched with the outer diameter of the pipe channel; the left side and the right side of the moving end are symmetrically provided with hook holes, and the outer side of the middle part is provided with a lock catch; the locking block and the lock catch form a locking device; the fixed end comprises a circular fixed body, a plurality of flexible rope holes are formed in the annular body array of the fixed body, and a circle of transverse wire binding groove is formed in the bottom of the fixed body; a plurality of rotating shaft holes are formed in the two sides of the binding wire groove; the flexible rope holes are respectively in one-to-one correspondence with the rotating shaft holes; the flexible rope hole penetrates through the fixing body and is communicated with the rotating shaft hole; the opening device comprises a plurality of opening arms in a T-shaped structure, hinge holes are formed in the front sections of the opening arms, and binding wires penetrate through the hinge holes and are embedded in the rotating shaft holes; the middle part of the opening arm is provided with a positioning hole, and the rear part of the opening arm is provided with a sliding groove; a supporting arm is connected between two adjacent strutting arms; the fixed hinge joint end penetrates through the positioning hole and is hinged to the front section of the supporting arm, and the movable hinge joint end penetrates through the sliding groove and is hinged to the rear end of the supporting arm; the movable hinged end can slide along the sliding groove; the bottom of the moving end is uniformly provided with a plurality of flexible ropes, the flexible ropes penetrate through the flexible rope holes and are fixed at the rear end of the supporting arm, and the flexible ropes are stretched to drive the hinged end to move from the rear part to the front part of the opening arm along the sliding groove so as to drive the opening arm to open; the upper surfaces of the opening arms are covered with a layer of umbrella-shaped coating film, and the coating film is sequentially covered and fixed on the upper surfaces of all the opening arms.

The utility model discloses a thereby can realize strutting of abdomen cavity wall and avoid high-pressure CO₂However, the structure of the provided distractor is too complex, the operation is not simple enough, and the distractor is provided with a plurality of small parts such as a supporting arm, a fixed hinged end and the like, and the small parts fall off into the body of a patient during the operation, which can cause serious medical accidents.

Disclosure of Invention

The invention aims to solve the problems and provides an abdominal cavity distracter which can distract the abdominal cavity wall in the operation process, has a simple structure and is convenient to use.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an abdominal cavity struts ware, includes interconnect's pipe and struts the ware main part, have the operation passageway that can supply the endoscope to pass in the pipe, strut the ware main part and include a plurality of roots and the pipe is connected strut the pole, it can make to strut the pole after filling gas to take place to keep away from the pipe axial lead the pivoted of inflating and strut the subassembly to strut to be connected with on the pole, it is linked together through air duct and air supply to inflate the subassembly of strutting, rotates to strut the pole and can strut the space in the inboard formation of pole of strutting, it is linked together with the operation passageway to strut the space.

In the abdominal cavity dilator, the inflation distraction assembly comprises an air bag which can enable the distraction rod to rotate away from the axis of the catheter after being inflated with air, and the air bag is communicated with the air guide tube through an air conveying pipe.

In the abdominal cavity distractor, the air bag is fixedly connected to the distraction rod and the air bag is connected end to form a ring shape.

In the abdominal cavity dilator, the balloon is provided with a plurality of balloons along the axis direction of the catheter, the diameter of the balloon far away from the catheter is larger than that of the balloon close to the catheter, each balloon is arranged in parallel, and two adjacent balloons are communicated with each other.

In the abdominal cavity distractor, one end of the conduit extends into the distraction space, the air bag is fixedly connected to the outer surface of one end of the conduit in the distraction space, and the air bag is filled with air so that the outer surface of the air bag is pressed on the inner side of the distraction rod.

In the abdominal cavity distractor, the distraction rods are provided with a plurality of rods and are evenly distributed along the circumferential direction of the axial lead of the catheter.

In the abdominal cavity dilator, an included angle between the dilating rod and the axial lead of the catheter is 0-85 degrees.

In the abdominal cavity distractor, a coating film is arranged between two adjacent distraction rods and is fixedly connected with the distraction rods, and the inner surface of the coating film is attached to the distraction space.

The abdominal cavity dilator further comprises a sealing saccule arranged between the inner wall of the catheter and the outer wall of the endoscope, an inflation cavity is arranged in the sealing saccule, air is inflated into the inflation cavity to enable the inner surface of the sealing saccule to be pressed on the outer wall of the endoscope, and the outer surface of the sealing saccule is pressed on the inner wall of the catheter.

Compared with the prior art, the invention has the advantages that:

1. the invention can utilize the inflatable spreading component to drive the spreading rod to form a spreading cavity in the operation process, thereby spreading the abdominal wall and avoiding high-pressure CO₂The use of (3) has simple structure and convenient use, does not have tiny parts, and improves the safety of the operation.

2. According to the invention, the coating film is arranged between two adjacent opening rods, and the coating film can cover the opening space when in use, so that the problem that blood or tissue fluid and the like on the separated tissue in the operation process can be prevented from dropping on the laparoscope to influence the view field of the laparoscope can be solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view from another perspective of the present invention;

FIG. 3 is a state diagram of the present invention in use;

in the figure: the device comprises acatheter 1, a spreadermain body 2, aspreader rod 3, aninflation spreader component 4, anair duct 5, anair source 6, aspreader space 7, acoating film 8, anoperation channel 9, asealing balloon 10, anair bag 41, anair pipe 42, anendoscope 100 andoperating forceps 200.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Combine shown in fig. 1 and 2, an abdominal cavity spreader,pipe 1 and spreadermain part 2 including interconnect, have theoperation passageway 9 that can supplyendoscope 100 to pass in thepipe 1, spreadermain part 2 includes a plurality ofstruts pole 3 that are connected withpipe 1, it can makespreader pole 3 take place to keep away from the pivoted ofpipe 1 axial lead to aerify andstrut subassembly 4 to be connected with on thestrut pole 3 after filling gas, it is linked together withair supply 6 throughair duct 5 to aerify to strutsubassembly 4 air feed, for example can be manual inflatable ball or air pump, rotatesspreader pole 3 and can strutspace 7 in the inboard formation ofspreader pole 3, it is linked together withoperation passageway 9 tostrut space 7.

When the invention is used, the spreadermain body 2 is placed into an abdominal cavity through incision of the skin surface of a patient, gas is blown into theinflatable spreading assembly 4 by thegas source 6, theinflatable spreading assembly 4 is enlarged in volume due to the inflation of the gas, so that the spreadingrod 3 is driven to rotate away from the axial lead of thecatheter 1, a spreadingspace 7 for operation is formed below the spreadingrod 3, theendoscope 100 is inserted into the spreadingspace 7 through theoperation channel 9, therefore, the invention can use theinflatable spreading assembly 4 to drive the spreadingrod 3 to rotate so as to form a spreadingcavity 7 in the operation process, thereby spreading the abdominal cavity wall, and avoiding high-pressure CO₂The use of (3) has simple structure and convenient use, does not have tiny parts, and improves the safety of the operation.

Preferably, a plurality of theopening rods 3 are arranged, and theopening rods 3 are uniformly distributed along the circumferential direction of the axial lead of thecatheter 1, so that the formedopening cavity 7 is uniform in shape and convenient for operation.

Preferably, the contained angle between thepole 3 of strutting and the axial lead ofpipe 1 is 0-85 degrees, and the biggest angle that struts ofpole 3 promptly is 85 degrees, forms thesuitable cavity 7 that struts of space size like this, makes things convenient for the operation, the ware that struts among the prior art to utility model patent application No. 201721167326.9 for example, its support arm becomes perpendicular to pipe passageway position by following the pipe passageway straight line direction position gradually, and the biggest angle that struts is 90 degrees promptly, and thecavity 7 that struts that forms like this is a flat cavity, leads to the space undersize, is unfavorable for the operation.

As shown in fig. 2, the inflating and expandingassembly 4 includes anairbag 41 which can make the expandingrod 3 rotate away from the axial lead of thecatheter 1 after being inflated with gas, theairbag 41 is communicated with theairway tube 5 through agas tube 42, and theairbag 41 has a larger volume due to the inflation of the gas, so as to drive the expandingrod 3 to rotate away from the axial lead of thecatheter 1.

Preferably, theairbag 41 is fixedly connected to theopening rod 3, and theairbag 41 is connected end to form a ring shape, so that the acting force of theairbag 41 on theopening rod 3 can be uniformly distributed, and the rotation angles of theopening rod 3 are approximately the same.

Further preferably, theballoons 41 are provided with a plurality ofballoons 41 which are far away from thecatheter 1 along the axial lead direction of thecatheter 1, the diameter of theballoon 41 which is close to thecatheter 1 is larger than that of theballoon 41 which is close to thecatheter 1, eachballoon 41 is arranged in parallel, and twoadjacent balloons 41 are communicated with each other, so that a similar conical expandingcavity 7 can be formed, and a surgery site which is positioned below the cavity has a larger movable space.

Theair bag 41 can be connected to thesupport rod 3 and can be arranged at other positions as long as the air bag plays a role in expanding thesupport rod 3 after being inflated, for example, one end of thecatheter 1 extends into the expandingspace 7, theair bag 41 is fixedly connected to the outer surface of one end of thecatheter 1 in the expandingspace 7, and theair bag 41 is filled with air to enable the outer surface of theair bag 41 to be pressed on the inner side of the expandingrod 3, so that the expandingrod 3 is rotated and expanded.

As shown in figure 1, acoating film 8 is arranged between twoadjacent opening rods 3, thecoating film 8 is fixedly connected with theopening rods 3, the inner surface of thecoating film 8 is attached to theopening space 7, thecoating film 8 is arranged between twoadjacent opening rods 3, when the endoscope is used, thecoating film 8 can cover theopening space 7, and the problem that blood, tissue fluid and the like on tissues separated in the operation process drip onto theendoscope 100 to influence the visual field of theendoscope 100 can be prevented.

As shown in fig. 3, the endoscope further comprises asealing balloon 10 arranged between the inner wall of theguide tube 1 and the outer wall of theendoscope 100, wherein thesealing balloon 10 is internally provided with an inflation cavity, and the inflation cavity is internally inflated with gas so that the inner surface of thesealing balloon 10 is pressed on the outer wall of theendoscope 100 and the outer surface is pressed on the inner wall of theguide tube 1, thereby sealing the space between the inner wall of theguide tube 1 and the outer wall of theendoscope 100.

The working principle of the invention is as follows: during the use, place into the abdominal cavity through the incision on patient's skin surface with spreadermain part 2, utilizeair supply 6 with gaseous gas throughair duct 5 and gas-supply pipe 42 with gaseous gas delivery to in 41,gasbag 41 leads to the volume grow because of the inflation of gaseous to drivespreader bar 3 takes place to keep away from the rotation ofpipe 1 axial lead, form thespace 7 that struts that is used for the operation belowspreader bar 3 like this,endoscope 100 inserts to strutting in thespace 7 throughoperation channel 9, the inflation makes sealedsacculus 10 inflation, the space between sealedpipe 1 inner wall and theendoscope 100 outer wall,operation pincers 200pierce cladding film 8 and extend to strutting in thespace 7 in order to accomplish the operation.

Therefore, the invention can utilize the inflatable spreadingcomponent 4 to drive the spreadingrod 3 to rotate so as to form the spreadingcavity 7 in the operation process, thereby spreading the abdominal wall and avoiding high-pressure CO₂The use of (3) has simple structure and convenient use, does not have tiny parts, and improves the safety of the operation.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although theterms catheter 1,distractor body 2,distractor rod 3, inflation/distraction assembly 4,airway tube 5,air supply 6,distraction space 7,cover film 8, workingchannel 9,sealing balloon 10,balloon 41,air delivery tube 42,endoscope 100,forceps 200, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (9)

1. An abdominal cavity distracter, which comprises a catheter (1) and a distracter body (2) which are connected with each other, wherein an operation channel (9) for an endoscope (100) to pass through is arranged in the catheter (1), and the abdominal cavity distracter is characterized in that: strut ware main part (2) include a plurality of struts pole (3) that are connected with pipe (1), it can make to strut pole (3) take place to keep away from pipe (1) axial lead's pivoted and aerify and strut subassembly (4) to be connected with on strut pole (3) after filling gas, aerify and strut subassembly (4) and be linked together through air duct (5) and air supply (6), rotate and strut pole (3) and can strut space (7) in the inboard formation of strut pole (3), it is linked together with operation passageway (9) to strut space (7).

2. The abdominal distractor of claim 1, wherein: the inflation opening assembly (4) comprises an air bag (41) which can enable the opening rod (3) to rotate away from the axial lead of the catheter (1) after being inflated with air, and the air bag (41) is communicated with the air duct (5) through an air conveying pipe (42).

3. The abdominal distractor of claim 2, wherein: the air bag (41) is fixedly connected to the opening rod (3) and the air bag (41) is connected end to form a ring.

4. The abdominal distractor of claim 3, wherein: the diameter of a plurality of air bags (41) far away from the catheter (1) is larger than that of the air bags (41) close to the catheter (1) along the axial lead direction of the catheter (1), each air bag (41) is arranged in parallel, and two adjacent air bags (41) are communicated with each other.

5. The abdominal distractor of claim 2, wherein: one end of the catheter (1) extends into the opening space (7), the air bag (41) is fixedly connected to the outer surface of one end of the catheter (1) located in the opening space (7), and the air bag (41) is filled with air to enable the outer surface of the air bag (41) to be pressed on the inner side of the opening rod (3).

6. The abdominal distractor of claim 1, wherein: the number of the opening rods (3) is multiple, and the opening rods (3) are evenly distributed along the circumferential direction of the axis of the catheter (1).

7. The abdominal distractor of claim 1, wherein: the included angle between the axial lead of the opening rod (3) and the axial lead of the catheter (1) is 0-85 degrees.

8. The abdominal distractor of claim 1, wherein: a coating film (8) is arranged between every two adjacent opening rods (3), the coating film (8) is fixedly connected with the opening rods (3), and the inner surface of the coating film (8) is attached to the opening space (7).

9. The abdominal distractor of claim 1, wherein: the endoscope is characterized by further comprising a sealing expansion ball (10) arranged between the inner wall of the guide pipe (1) and the outer wall of the endoscope (100), wherein an inflation cavity is arranged in the sealing expansion ball (10), air is inflated into the inflation cavity to enable the inner surface of the sealing expansion ball (10) to be pressed on the outer wall of the endoscope (100), and the outer surface of the sealing expansion ball is pressed on the inner wall of the guide pipe (1).

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