CN112741952A

CN112741952A - Esophagus dilator

Info

Publication number: CN112741952A
Application number: CN201911034186.1A
Authority: CN
Inventors: 赵贵君; 冯勇
Original assignee: Inner Mongolia Peoples Hospital
Current assignee: Inner Mongolia Peoples Hospital
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2021-05-04

Abstract

The invention provides an esophagus dilator, which comprises a catheter, a plurality of saccules arranged at the far end of the catheter and a pressure pump connected with the near end of the catheter, wherein the pressure pump comprises a catheter body, a pressure gauge, a connecting pipe respectively connected with the near end of the catheter and the far end of the catheter body, a piston arranged in the catheter body, a screw rod connected with the piston, a first handle connected with the near end of the screw rod and a button arranged in a relative sliding way with the catheter body, threads matched with the screw rod in a threaded way are formed on the button, when the pressure pump is in a first perfusion mode, the threads of the button are separated from the threads of the screw rod, and the piston is controlled to move by pulling the first handle; when the pressure pump is in the second filling mode, the thread of the button is matched with the thread of the screw rod, and the piston is controlled to move by rotating the first handle. The invention has simple structure, convenient operation and obvious effect, can radially expand the esophagus and is beneficial to loosening the incarceration foreign body from the mucous membrane layer.

Description

Esophagus dilator

Technical Field

The invention particularly relates to an esophagus dilator.

Background

The taking of foreign bodies from food feeding channels under the endoscope is one of the most common outpatient and emergency endoscopic operations, and even needs hospitalization when the conditions are complicated. There are 3 physiological stenoses in the esophagus: respectively at the entrance of the esophagus, at the intersection with the aortic arch and the left main bronchus, and at the esophageal fissure of the diaphragm. Foreign bodies are easily lodged in these physiological stenoses, the first one being the narrowest part of the esophagus and the most commonly lodged position of esophageal foreign bodies. 1190 patients admitted to the hospital for esophageal foreign body management during the years 2011-07/2017-07 were analyzed at the first subsidiary hospital of Zhengzhou university, and 70% of esophageal foreign bodies were embedded therein.

The sources of esophageal foreign bodies are various and are distributed regionally. In the inland area of China, the main sources of esophageal foreign body incarceration are jujube pits, chicken bones and the like, and the accumulation accounts for 52 percent; and the fish bones (fish bones, turtle shells, shrimp and crab shells and the like) can account for more than 43 percent in coastal areas. The common feature of the foreign body easy to cause incarceration is that a sharp end is commonly existed, so that the damage of the esophagus mucous membrane is easily caused, and more serious complications are caused.

Gastrointestinal endoscopy is the most prominent treatment for esophageal foreign body impaction. However, since the incarceration foreign body often has a sharp end penetrating into the esophageal mucosa, the foreign body is difficult to be directly taken out by using the existing foreign body forceps and other equipment, and the injury of the esophageal mucosa is easily expanded in the process of forcibly pulling out or pushing in the foreign body upwards, and even more serious complications are caused.

The main problem of the prior art in dealing with the insertion of a foreign body in the esophagus is that the force can be applied only in the direction perpendicular to the esophagus (pulling out or pushing in), but not in the direction horizontal to the esophagus (spreading the esophagus aside). If there is a kind of equipment, can be in the direction of level in the esophagus, strut the esophagus along the foreign matter major axis, can make the sharp end of foreign matter separate out but can not further enlarge the mucous membrane damage from the esophagus mucous membrane that pierces, and at gravity, esophagus wriggle and/or under the effect of external force change direction, make the sharp end of foreign matter put along perpendicular esophagus direction more easily, just so can be safer use equipment such as foreign matter pincers to take out the foreign matter.

Disclosure of Invention

The invention aims at the problems and provides the esophagus dilator which can radially expand the esophagus so as to help the incarceration foreign body to loosen from the mucous membrane layer without influencing the operation of a shell operator.

In order to solve the technical problems, the invention adopts the following technical scheme:

an esophageal dilator comprises a catheter with a plurality of lumens, a plurality of balloons which are arranged at the far end of the catheter and are respectively communicated with the lumens, and a plurality of filling devices which are connected with the near end of the catheter and are respectively communicated with the lumens so as to be capable of independently controlling the filling and releasing of the balloons, wherein the filling devices comprise a pressure pump with a first filling mode and a second filling mode, the pressure pump comprises a pipe body, a pressure gauge arranged at the far end of the pipe body, connecting pipes respectively connected with the near end of the catheter and the far end of the pipe body, a piston arranged in the pipe body, a screw rod connected with the piston, a first handle connected with the near end of the screw rod, and a button arranged in a relative sliding way with the pipe body, and threads which can be matched with the screw rod in a threaded way are formed on the button, when the pressure pump is in the first perfusion mode, the thread of the button is separated from the thread of the screw rod, and the piston can be controlled to move by pushing and pulling the first handle; when the pressure pump is in the second perfusion mode, the thread of the button is matched with the thread of the screw rod, and the piston can be controlled to move by rotating the first handle.

The invention sucks normal saline or air through the filling device, and leads the saccule to be in a non-filling state, then an operator can place the far end of the esophagus dilator into the alimentary canal of a patient and reach the far end of a foreign body, and then pushes gas or liquid into different saccules through different tube cavities by pushing or rotating the first handle, so that the saccules are respectively inflated and filled, thereby expanding the alimentary canal of the patient and loosening the foreign body. In the first perfusion mode, the first handle can be directly pulled to realize quick push-pull of the piston, so that the balloon is quickly filled or released; under the second fills the mode, can realize the accuracy and fill through rotating first handle, first handle rotates the round each time, and the screw rod drives the piston and walks the distance of a screw rod forward.

The esophagus dilator can enable an operator to independently select to connect a single or a plurality of filling devices in the esophagus dilator according to actual conditions, and one balloon is communicated with one lumen, so that when a plurality of filling devices are connected, the plurality of balloons can be respectively filled, and the esophagus dilator has wide application range and strong operability.

Preferably, the button includes a button body fitted over the screw, and the thread is formed on a side portion of an inner surface of the button body.

Further preferably, the other side portion of the inner surface of the button body is a smooth surface.

Further preferably, the cross section of the inner space of the button body is in a shape of a waist circle.

Further preferably, the button further comprises a button part formed on an outer surface of the button body and partially protruding the tube body.

Further preferably, the pressure pump further comprises an elastic member disposed between the button and the tube to urge the pressure pump to be in the second priming mode.

Preferably, the proximal end of the tube body is fixedly provided with a second handle with a plurality of protrusions formed on the surface, the button is in sliding connection with the second handle, the sliding direction of the button is perpendicular to the axial direction of the piston, the second handle is arranged to facilitate holding of the device by an operator, and the protrusions formed on the surface can further increase the holding friction force, so that the operation of the operator is facilitated.

Preferably, the balloon is a non-compliant balloon, so as to avoid the formation of a bone effect due to the fact that the balloon is pressed and deformed by surrounding tissues or foreign matters when being expanded, and the ideal expansion effect cannot be achieved.

Preferably, the balloons are arranged along the axial direction or the circumferential direction of the catheter, the arrangement mode of the balloons is selected according to clinical needs, for example, the balloons can be arranged into a plurality of balloons which are arranged along the axial direction of the catheter and are in an ellipsoidal shape after being inflated, and in such a structure, the balloons can be periodically inflated before and after the balloons are inflated, so that the peristalsis of the digestive tract is promoted, foreign bodies are loosened and moved, and the balloons fall into the stomach; can also set up to the circumference setting along the pipe to after the sacculus is full, can form dysmorphism such as dumbbell, so that the art person under the state of strutting, also can get into the apparatus and carry out the operation, perhaps avoid the air flue under the state of strutting to block.

Preferably, said catheter is connected to said filling device by a manifold.

Further preferably, the connecting part of the catheter and the multi-way joint is provided with a mediastinum for separating the multi-way joint to be respectively communicated with the lumens of the catheter.

The distal and proximal ends are defined herein as the end of the esophageal dilator distal to the operator being the distal end and the end proximal to the operator being the proximal end.

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

the invention has simple structure, convenient operation and obvious effect, can radially expand the esophagus and is beneficial to loosening the incarceration foreign body from the mucous membrane layer.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic view of the filling device;

FIG. 3 is a partial cross-sectional view of the inflation device;

FIG. 4 is a schematic structural diagram of a button;

FIG. 5 is a schematic view of the structure of the balloon and catheter;

FIG. 6 is a schematic view of one embodiment of a balloon in an inflated state;

FIG. 7 is a schematic diagram of another embodiment of a balloon in an inflated state;

wherein, 1, filling the device; 2. a multi-way joint; 3. a conduit; 4. a balloon; 5. the mediastinum; 11. a pipe body; 12. a pressure gauge; 13. a connecting pipe; 14. a piston; 15. a screw; 16. a first handle; 17. a second handle; 18. a button; 19. a chute; 20. an elastic member; 31. an opening; 181. a button body; 182. a button portion; 183. a thread; 131. a luer fitting.

Detailed Description

The following examples are intended to illustrate several embodiments of the present invention, but are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.

Structures and the like not described in detail in the present invention are conventional technical means in the art.

The esophageal dilator shown in fig. 1 comprises a plurality of filling devices 1, a multi-way joint 2, a catheter 3 having a plurality of lumens, and a plurality of balloons 4.

As shown in fig. 2 and 3, the filling device 1 comprises a pressure pump having a first filling mode and a second filling mode, and the pressure pump comprises a tube 11, a pressure gauge 12 mounted at a distal end of the tube 11, a connecting tube 13 connected to the distal end of the tube 11, a piston 14 disposed in the tube 11, a screw 15 connected to the piston 14, a first handle 16 connected to a proximal end of the screw 15, and a button 18 slidably disposed with respect to the tube 11.

According to one embodiment, the push-button 18 is directly connected to the tubular body 11 in a sliding manner, so that the operator can directly grip the tubular body 11 during the operation. According to another preferred embodiment, the proximal end of the tube 11 is fixedly provided with a second handle 17 having a plurality of protrusions formed on the surface thereof, the second handle 17 and the tube 11 can be fixed by bonding or welding, and the button 18 is slidably connected to the second handle 17 in a direction perpendicular to the axial direction of the piston 14.

In the preferred embodiment, a slide groove 19 for sliding the button 18 is formed in the second handle 17, an opening 31 communicating with the slide groove 19 is formed in the second handle 17, and the button 18 is slidably disposed in the slide groove 19 and partially protrudes from the opening 31 to realize the sliding connection between the button 18 and the second handle 17.

As shown in fig. 4, the button 18 includes a button body 181 fitted over the screw 15, a button portion 182 formed on an outer surface of the button body 181 and partially protruding out of the second handle 17, wherein the button body 181 is disposed in the slide groove 19 of the second handle 17 and is capable of sliding in the slide groove 19, and the button portion 182 protrudes out of the second handle 17 from the opening 31 of the second handle 17 so as to facilitate the operator to operate the button portion 182 to adjust the pressure pump between the first perfusion mode and the second perfusion mode.

The cross section of the inner space of the button body 181 is a kidney-shaped circle, the radius of the semicircle of the kidney-shaped circle matches the outer diameter of the screw 15, one semicircle of the inner surface of the kidney-shaped circle is formed with a half turn of the thread 183 capable of meshing with the thread 183 of the screw 15, and the other semicircle of the inner surface of the kidney-shaped circle is a smooth surface.

The pressure pump further comprises an elastic member 20 arranged between the button body 181 of the button 18 and the second handle 17 to make the pressure pump have a tendency to be in the second filling mode, in this embodiment, the elastic member 20 is a return spring, and the return springs are two springs symmetrically arranged on two sides of the button body 181, so that the button body 181 slides in the slide groove 19 of the second handle 17 without being easily deflected.

For the scheme that the button 18 is directly connected with the tube body 11 in a sliding manner, the second handle 17 only needs to be regarded as being integrated with the tube body 11, and the arrangement modes of all the components are not changed.

When the button 18 is not operated, the button 18 keeps the thread 183 of the button body 181 engaged with the thread 183 of the screw 15 by the elastic force of the elastic member 20, and at this time, the pressure pump is in the second priming mode, and the screw 15 is moved by rotating the first handle 16 to screw-engage the screw 15 with the button 18, thereby achieving precise priming.

When the operator presses the button 182, the button body 181 slides relative to the chute 19 of the second handle 17 against the elastic force of the elastic member 20 until the thread 183 of the button body 181 is separated from the thread 183 of the screw 15, and at this time, the pressure pump is in the first perfusion mode, and the first handle 16 is pulled back and forth to drive the screw 15 to move, thereby realizing rapid perfusion.

As shown in fig. 5, the distal end of the connection tube 13 of the pressure pump is connected to a proximal end of the multi-way connector 2 via a luer 131, and the distal end of the multi-way connector 2 is connected to the proximal end of the catheter 3.

Wherein, the number of joints of multi-way joint 2, the lumen number of pipe 3, the number of sacculus 4 and the number of force pump are unanimous, promptly, when 3 lumens of pipe are two of independent setting, multi-way joint 2 adopts the two-way joint, and sacculus 4 is two, and the force pump also is two, and two force pumps can two sacculus 4 of independent control be sufficient alone and release.

In order to communicate the connection tube 13 of the pressure pump with one lumen of the catheter 3, a mediastinum 5 for partitioning the multi-way joint 2 to communicate with the lumens of the catheter 3, respectively, is provided at the junction of the catheter 3 and the multi-way joint 2.

The distal end of the catheter 3 is a blind end, a plurality of balloons 4 are arranged at the distal end of the catheter 3 along the axial direction or the circumferential direction of the catheter 3, a plurality of openings 31 communicated with the lumen are formed in the catheter 3, each balloon 4 is communicated with one or more lumens of the catheter 3 through one or more openings 31, preferably, one balloon 4 is communicated with one lumen of the catheter 3, so that filling can be controlled by one pressure pump. Water or gas cannot be directly discharged through the distal end of the catheter 3, and can only enter the corresponding balloon 4 through the opening 31 on the catheter 3, thereby realizing the expansion of the balloon 4.

The balloon 4 is preferably a non-compliant balloon 4, so as to avoid the bone effect caused by the compression and deformation of surrounding tissues or foreign matters when the balloon 4 is expanded, and the ideal expansion effect is not achieved.

Moreover, the balloons 4 can be in different shapes and forms according to clinical requirements, as shown in fig. 6, the two balloons 4 are sequentially arranged along the axial direction of the catheter 3 and are in an ellipsoidal shape after being expanded, and in the form, the front balloon 4 and the rear balloon 4 can be periodically inflated, so that the peristalsis of the digestive tract is promoted, foreign bodies are loosened and moved, and the foreign bodies fall into the stomach. As shown in fig. 7, the two balloons 4 are sequentially arranged along the circumferential direction of the catheter 3, and are dumbbell-shaped after being expanded, so that an operator can enter an instrument to perform an operation or avoid airway obstruction in the expanded state.

When the invention is used, the normal saline or air is sucked through the filling device 1, the saccule 4 is in a non-filling state, then an operator can place the far end of the esophagus dilator into the alimentary canal of a patient and reach the far end of a foreign body, and then, by pushing or rotating the first handle 16, gas or liquid is pushed into different saccules 4 through different tube cavities, so that the saccules 4 are respectively inflated and filled, thereby expanding the alimentary canal of the patient and loosening the foreign body. In the first perfusion mode, the first handle 16 can be pulled directly to rapidly push and pull the piston 14, so as to rapidly fill or release the balloon 4; in the second filling mode, accurate filling can be realized by rotating the first handle 16, and the screw 15 drives the piston 14 to move forward by the distance of the screw 15 every time the first handle 16 rotates one circle.

The esophageal dilator can enable an operator to independently select to insert one or more filling devices 1 into the esophageal dilator according to actual conditions, and when the filling devices 1 are inserted, the balloons 4 can be respectively filled, so that the esophageal dilator has wide application range and strong operability.

The present invention includes but is not limited to the above embodiments, and those skilled in the art can convert more embodiments within the claims of the present invention.

Claims

1. An esophageal dilator, comprising: the filling device comprises a catheter (3) with a plurality of lumens, a plurality of balloons (4) which are arranged at the far end of the catheter (3) and are respectively communicated with the lumens, and a plurality of filling devices (1) which are connected with the near end of the catheter (3) and are respectively communicated with the lumens so as to independently control filling and releasing of the balloons (4), wherein the filling devices (1) comprise a pressure pump with a first filling mode and a second filling mode, the pressure pump comprises a pipe body (11), a pressure gauge (12) arranged at the far end of the pipe body (11), a connecting pipe (13) respectively connected with the near end of the catheter (3) and the far end of the pipe body (11), a piston (14) arranged in the pipe body (11), and a screw rod (15) connected with the piston (14), A first handle (16) connected with the proximal end of the screw rod (15), and a button (18) arranged in a relative sliding manner with the tube body (11), wherein a thread (183) capable of being in threaded fit with the screw rod (15) is formed on the button (18), when the pressure pump is in the first perfusion mode, the thread (183) of the button (18) is separated from the thread (183) of the screw rod (15), and the piston (14) can be controlled to move by pushing and pulling the first handle (16); when the pressure pump is in the second filling mode, the thread (183) of the button (18) is matched with the thread (183) of the screw rod (15), and the piston (14) can be controlled to move by rotating the first handle (16).

2. The esophageal dilator of claim 1, wherein: the button (18) comprises a button body (181) sleeved on the screw rod (15), and the thread (183) is formed on one side part of the inner surface of the button body (181).

3. The esophageal dilator of claim 2, wherein: the other side part of the inner surface of the button body (181) is a smooth surface.

4. The esophageal dilator of claim 2 or 3, wherein: the cross section of the inner space of the button body (181) is in a waist-round shape.

5. The esophageal dilator of claim 2, wherein: the button (18) further comprises a button part (182) which is formed on the outer surface of the button body (181) and partially protrudes out of the tube body (11).

6. The esophageal dilator of claim 2, wherein: the pump further comprises an elastic element (20) interposed between the push-button (18) and the tubular body (11) to give the pump a tendency to assume the second filling mode.

7. The esophageal dilator of claim 1, wherein: the proximal end of the tube body (11) is fixedly provided with a second handle (17) with a plurality of protrusions formed on the surface, the button (18) is connected with the second handle (17) in a sliding mode, and the sliding direction of the button is perpendicular to the axial direction of the piston (14).

8. The esophageal dilator of claim 1, wherein: the balloon (4) is a non-compliant balloon (4), and the balloons (4) are arranged along the axial direction or the circumferential direction of the catheter (3).

9. The esophageal dilator of claim 1, wherein: the catheter (3) is connected with the filling device (1) through a multi-way joint (2).

10. The esophageal dilator of claim 10, wherein: the connecting part of the catheter (3) and the multi-way joint (2) is provided with a mediastinum (5) which is used for separating the multi-way joint (2) into a plurality of cavities which are respectively communicated with the catheter (3).