阅读说明：本技术 步进式食管扩张球囊 (Step-by-step esophagus dilating saccule ) 是由 钟金伟 卢光荣 周羽翙 杨守醒 薛战雄 于 2020-04-28 设计创作，主要内容包括：本发明公开了一种步进式食管扩张球囊,可以将球囊逐步地推进至食管相应部位,推进过程平稳且每一小步推入的距离不变,有利于将球囊精确地送至所需部位,且减轻患者不适感。其技术方案要点是：一种步进式食管扩张球囊,包括导管、球囊和用于逐步推动导管进入食管的推进装置,导管穿过推进装置内部；推进装置包括壳体、推进管、挤压套、弹簧和按钮,推进管位于壳体内部,导管位于推进管中,推进管的前端设有可自动张开的卡头,卡头在自然状态下收缩于挤压套中,导管由于卡头的收缩被固定在推进管中；摁压按钮可推动推进管带动导管前进,继而卡头从挤压套脱出并张开,松开按钮后,推进管受弹簧作用而复位,卡头重新进入挤压套。(The invention discloses a stepping esophagus expansion balloon, which can be gradually pushed to the corresponding part of an esophagus, is stable in the pushing process, and has the same pushing distance in each small step, so that the balloon can be accurately sent to the required part, and the discomfort of a patient is relieved. The key points of the technical scheme are as follows: a step-by-step esophagus dilating balloon comprises a catheter, a balloon and a propelling device for gradually pushing the catheter into the esophagus, wherein the catheter passes through the inside of the propelling device; the propelling device comprises a shell, a propelling pipe, an extrusion sleeve, a spring and a button, wherein the propelling pipe is positioned in the shell, the guide pipe is positioned in the propelling pipe, the front end of the propelling pipe is provided with a chuck capable of automatically opening, the chuck is contracted in the extrusion sleeve under a natural state, and the guide pipe is fixed in the propelling pipe due to the contraction of the chuck; the push button can push the push tube to drive the guide tube to advance, then the chuck is separated from the extrusion sleeve and opened, after the push button is released, the push tube is reset under the action of the spring, and the chuck enters the extrusion sleeve again.)

1. A marching type esophagus dilating saccule is characterized in that: comprises a catheter (1), a balloon (2) and a propelling device (3) for gradually pushing the catheter (1) into the esophagus, wherein the catheter (1) passes through the inside of the propelling device (3),

-the propelling device (3) comprises a housing (30), a propelling tube (31), a pressing sleeve (32), a spring (33) and a button (34), the propelling tube (31) is positioned inside the housing (30), the catheter (1) is positioned in the propelling tube (31), the front end of the propelling tube (31) is provided with a chuck (310) capable of automatically opening, the chuck (310) is naturally contracted in the pressing sleeve (32), and the catheter (1) is fixed in the propelling tube (31) due to the contraction of the chuck (310);

-pressing the button (34) pushes the pusher tube (31) to advance the catheter (1), whereupon the cartridge (310) is released from the squeeze sleeve (32) and opened, and after releasing the button (34), the pusher tube (31) is reset by the action of the spring (33), whereupon the cartridge (310) re-enters the squeeze sleeve (32).

2. The stepped esophageal dilation balloon of claim 1, wherein: and a damping mechanism (35) for limiting the free sliding of the guide pipe (1) is further arranged in the shell (30), and the guide pipe (1) passes through the propelling pipe (31) and the damping mechanism (35) from the tail part of the shell (30) and extends out of the front part of the shell (30).

3. The stepped esophageal dilation balloon of claim 2, wherein: the button (34) is arranged on the side surface of the shell (30); the side surface of the propelling pipe (31) is provided with a slope (311), and one end of the button (34) positioned in the shell (30) is tightly attached to the slope (311) of the propelling pipe (31).

4. The stepped esophageal dilation balloon of claim 1, wherein: the oral cavity fixing device is further provided with an oral cavity fixing device (5), the oral cavity fixing device (5) comprises an upper jaw supporting part (50) and a lower jaw supporting part (51), and a channel for the guide pipe (1) to pass through is arranged in the middle of the oral cavity fixing device (5); the propelling device (3) is fixedly connected with the outside of the oral cavity fixing device (5).

5. The stepped esophageal dilation balloon of claim 4, wherein: the upper jaw supporting part (50) and the lower jaw supporting part (51) are both provided with tooth sockets (52), and the distance between the upper jaw supporting part (50) and the lower jaw supporting part (51) can be adjusted.

6. The stepped esophageal dilation balloon of claim 5, wherein: the tooth socket (52) is detachably connected with the upper jaw supporting part (50) and the lower jaw supporting part (51).

7. The stepped esophageal dilation balloon of claim 1, wherein: the water filling device (4) used for filling water into the balloon (2) is further arranged, and the water filling device (4) comprises a cavity (40), a push rod (41), a first one-way valve (43), a second one-way valve (44) and a baffle (42) used for limiting the displacement of the push rod (41).

8. The stepped esophageal dilation balloon of claim 7, wherein: the first one-way valve (43) is connected with the guide pipe (1), and the second one-way valve (44) is connected with the water injection pipe. When the push rod (41) is pushed inwards, the first one-way valve (43) is opened, the second one-way valve (44) is closed, and the cavity (40) and the catheter (1) form a passage; when the push rod (41) is pulled outwards, the second one-way valve (44) is opened, the first one-way valve (43) is closed, and the cavity (40) and the water injection pipe form a passage.

9. The stepped esophageal dilation balloon of claim 1, wherein: the baffle (42) is movably arranged in a cavity (40) of the water injection device (4), and the water injection device (4) is further provided with an adjusting mechanism (45) for adjusting the position of the baffle (42).

10. The stepped esophageal dilation balloon of claim 1, wherein: the catheter (1) is provided with a pressure gauge (10) for measuring the pressure in the saccule (2).

Technical Field

The invention relates to the field of digestive apparatus, in particular to a stepping type esophageal dilatation balloon.

Background

Esophageal stenosis is a disease of the digestive tract, and can be caused by congenital esophageal stenosis (also known as congenital esophageal ring and esophageal web), and in addition, secondary esophageal stenosis is often seen in esophageal tumors, esophageal dyskinesia, anastomotic stenosis after esophagogastrostomy, esophagitis or scar stenosis caused by burn, and the like. Dysphagia is a major symptom of esophageal stenosis, and in addition, swallowing is accompanied by pain, weight loss, and food reflux after eating.

At present, esophageal stenosis is usually treated by balloon dilatation, wherein a balloon which can be filled with air or water is inserted into an esophagus, and when the balloon is filled, the balloon is extruded to the inner walls of the esophagus at two sides, so that the purpose of treating the stenosis is achieved.

However, the balloon used in the existing balloon dilatation has the following disadvantages:

in current sacculus dilatation art, under the assistance of X-ray radiography art, the doctor bare-handed pipe that will have the sacculus pushes in patient's esophagus, because the digestion track is more sensitive in the human body, must keep slowly and at the uniform velocity when pushing the sacculus, but bare-handed push is difficult to hold the dynamics and keeps stable, not only can lead to the sacculus position of pushing inaccurate, still probably brings stronger painful sense for the patient.

Disclosure of Invention

The invention aims to provide a stepping type esophagus dilating balloon, which can be gradually pushed to the corresponding part of the esophagus, is stable in the pushing process, has constant pushing distance in each small step, is beneficial to accurately delivering the balloon to the required part and relieves the discomfort of a patient.

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

a stepped esophageal dilation balloon comprising a catheter, a balloon and a pusher for progressively pushing the catheter into the esophagus, the catheter passing inside the pusher; the propelling device comprises a shell, a propelling pipe, an extrusion sleeve, a spring and a button, wherein the propelling pipe is positioned in the shell, the guide pipe is positioned in the propelling pipe, the front end of the propelling pipe is provided with a chuck capable of automatically opening, the chuck is contracted in the extrusion sleeve under a natural state, and the guide pipe is fixed in the propelling pipe due to the contraction of the chuck; the push button can push the push tube to drive the guide tube to advance, then the chuck is separated from the extrusion sleeve and opened, after the push button is released, the push tube is reset under the action of the spring, and the chuck enters the extrusion sleeve again.

Compared with the prior art, the stepping type esophageal dilatation balloon adopting the technical scheme has the following beneficial effects:

firstly, the step-by-step esophagus dilating balloon is adopted, a catheter with the balloon is placed in a propelling device, the catheter is gradually pushed into an esophagus through the process of 'clamping-propelling-loosening' circulation, the catheter only travels a short distance each time, and the lateral swing cannot occur in the process of traveling, so that the discomfort of a patient is relieved.

Secondly, the process of pushing the catheter by the pushing device of the step-by-step esophageal dilatation balloon is similar to the automatic propelling pencil lead-out technology, and the distance of the catheter pushed once is fixed, so that the position of the narrow part of the test tube can be determined through X-ray radiography, and the distance of the balloon required to enter can be calculated, so that the designated position can be reached by pushing the catheter for many times, and the position of the balloon is more accurate.

Preferably, the inside of the shell is also provided with a damping mechanism for limiting the free sliding of the guide pipe, the guide pipe passes through the propelling pipe and the damping mechanism from the tail part of the shell and extends out of the front part of the shell, and the damping mechanism can prevent the guide pipe from sliding outwards when not restrained by the propelling pipe clamping head.

Preferably, the button is arranged on the side surface of the shell; the side of the propelling pipe is provided with a slope, one end of the button, which is positioned in the shell, is tightly attached to the slope of the propelling pipe, and the button is arranged on the side of the shell, so that the button can be prevented from colliding with a conduit extending out of the tail of the shell, and the button is easier to operate.

Preferably, the step-by-step esophagus dilating balloon is also provided with an oral cavity supporting part, the oral cavity supporting part comprises an upper jaw supporting part and a lower jaw supporting part, and a channel for the catheter to pass through is arranged in the middle of the oral cavity supporting part; the propelling device is fixedly connected with the outside of the oral cavity supporting part, and the oral cavity supporting part can prevent the mouth from being closed when the catheter is pushed in; the propulsion device is fixed on the oral cavity supporting part, so that the stability of the propulsion of the catheter can be ensured.

Preferably, the upper jaw supporting part and the lower jaw supporting part are both provided with tooth sockets, and the distance between the upper jaw supporting part and the lower jaw supporting part is adjustable, so that the discomfort of the mouth of a patient is relieved.

Preferably, the tooth socket is detachably connected with the upper jaw supporting part and the lower jaw supporting part, the tooth socket belongs to disposable articles, and the detachable tooth socket facilitates replacement of the tooth socket.

Preferably, this marching type esophagus expansion sacculus still is equipped with the water injection device that is used for the sacculus water filling, water injection device includes cavity, push rod, first check valve, second check valve and is used for restricting the baffle of push rod displacement, and this water injection device can pour into fixed amount of water into the sacculus into one by one, makes the sacculus slowly expand, avoids traditional water injection mode water injection speed too fast, water injection volume to control not good and the painful high problem of degree of patient that leads to.

Preferably, the first one-way valve is connected with the conduit, and the second one-way valve is connected with the water injection pipe. When the push rod is pushed inwards, the first one-way valve is opened, the second one-way valve is closed, and the cavity and the guide pipe form a passage; when the push rod is pulled outwards, the second check valve is opened, the first check valve is closed, the cavity and the water injection pipe form a passage, namely, water with a strong indoor fixed volume is injected into the balloon by the push rod which is pushed inwards, and water from an external water source is sucked into the cavity when the push rod is pulled outwards, so that the balloon can be gradually filled with water by repeating the steps.

Preferably, the baffle is movably arranged in a cavity of the water injection device, the water injection device is further provided with an adjusting mechanism for adjusting the position of the baffle, and the baffle is used for adjusting the size of the cavity so as to adjust the single water inflow.

Preferably, the catheter is provided with a pressure gauge for measuring the pressure in the saccule, the pressure change condition of the saccule can be seen through the pressure gauge, and then whether water injection is needed or not is judged according to the bearing degree of the esophagus of a patient.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the step-type esophageal dilatation balloon of the invention.

Fig. 2 is a schematic structural diagram of the propulsion device in this embodiment.

Fig. 3 is a schematic cross-sectional view of the propulsion device in this embodiment.

Fig. 4 is a schematic structural view of the oral cavity support part in this embodiment.

Fig. 5 is a schematic structural view of the water injection device in this embodiment.

Reference numerals: 1. a conduit; 10. a pressure gauge; 2. a balloon; 3. a propulsion device; 30. a housing; 31. a propulsion tube; 310. clamping a head; 311. a slope; 32. extruding a sleeve; 33. a spring; 34. a button; 35. a damping mechanism; 4. a water injection device; 40. a chamber; 41. a push rod; 42. a baffle plate; 43. a first check valve; 44. a second one-way valve; 45. an adjustment mechanism; 5. an oral cavity support; 50. a maxilla support portion; 51. a chin support portion; 52. a tooth socket.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, the stepping esophageal dilatation balloon comprises a catheter 1, a balloon 2, an oral cavity support part 5, a pressure gauge 10, a propulsion device 3 and a water injection device 4, wherein the balloon 2 is positioned at the front end part of the catheter 1, the tail part of the catheter 1 is connected with the water injection device 4, and the catheter 1 sequentially penetrates through the inside of the propulsion device 3 and the oral cavity support part 5 to extend into the esophagus of a patient; propulsion unit 3 and the outside fixed connection of oral cavity supporting part 5, propulsion unit 3 is used for progressively promoting pipe 1 and gets into the esophagus, and water injection device 4 is used for making sacculus 2 water injection sufficient and extrude the esophagus inner wall for narrow position obtains the expansion in the esophagus.

As shown in fig. 2 and 3, the propelling device 3 includes a housing 30, a propelling tube 31, a pressing sleeve 32, a spring 33, a button 34 and a damping mechanism 35, the propelling tube 31 is located inside the housing 30, the guide tube 1 is located in the propelling tube 31, a chuck 310 is disposed at the front end of the propelling tube 31, the chuck 310 is naturally contracted in the pressing sleeve 32, the guide tube 1 is fixed in the propelling tube 31 due to the contraction of the chuck 310, the chuck 310 is automatically opened after being separated from the pressing sleeve 32, and the propelling tube 31 is separated from the guide tube 1 after the chuck 310 is opened.

The button 34 is arranged on the side surface of the shell 30, the slope 311 is arranged on the side surface of the propelling tube 31, one end of the button 34, which is positioned inside the shell 30, is tightly attached to the slope 311 of the propelling tube 31, the button 34 is pressed to apply pressure to the slope 311, the propelling tube 31 is further pushed to move forwards, the propelling tube 31 drives the catheter 1 to move forwards, and then the chuck 310 is separated from the extrusion sleeve 32 and opened; after releasing the button 34, the pushing tube 31 is reset by the spring 33, and the chuck 310 enters the pressing sleeve 32 again, and the catheter 1 is not brought back to the original position by the pushing tube 31 because the pushing tube 31 is in a disengaged state with the catheter 1.

The shell 30 is also provided with a damping mechanism 35 for limiting the free sliding of the guide tube 1, the damping mechanism 35 is arranged at the front end of the propelling tube 31, the guide tube 1 passes through the propelling tube 31 and the damping mechanism 35 from the tail of the shell 30 and extends out from the front of the shell 30, and the damping mechanism 35 can prevent the guide tube 1 from sliding outwards when not restrained by the chuck 310 of the propelling tube 31.

As shown in fig. 4, the oral cavity support portion 5 includes an upper jaw support portion 50 and a lower jaw support portion 51, and a passage for the passage of the tube 1 is provided in the middle. The upper jaw supporting part 50 and the lower jaw supporting part 51 are both provided with tooth sockets 52, the tooth sockets 52 are detachably connected with the upper jaw supporting part 50 and the lower jaw supporting part 51, and the distance between the upper jaw supporting part 50 and the lower jaw supporting part 51 is adjustable.

As shown in fig. 5, the water injection device 4 includes a chamber 40, a push rod 41, a first check valve 43, a second check valve 44, and a stopper 42 for limiting the displacement of the push rod 41, the first check valve 43 being connected to the guide duct 1, and the second check valve 44 being connected to the water injection pipe. When the push rod 41 is pushed inwards, the first one-way valve 43 is opened, the second one-way valve 44 is closed, and the cavity 40 and the catheter 1 form a passage; when the push rod 41 is pulled outwards, the second one-way valve 44 is opened, the first one-way valve 43 is closed, the cavity 40 and the water injection pipe form a passage, namely, the push rod 41 is pushed inwards to inject water with a strong indoor fixed volume into the balloon 2, and when the push rod 41 is pulled outwards, water from an external water source is sucked into the cavity 40, so that the balloon 2 can be gradually injected with water repeatedly.

Baffle 42 movably locates in water injection device 4's cavity 40, and baffle 42 afterbody is equipped with adjustment mechanism 45 that is used for adjusting the baffle 42 position, and adjustment mechanism 45 includes knob and swing arm, is equipped with the screw thread on the swing arm, and water injection device 4 rear end is equipped with the internal thread, can make baffle 42 horizontal migration in cavity 40 through twisting the knob, and baffle 42 is used for adjusting cavity 40's size to adjust the single inflow.

The catheter 1 is also provided with a pressure gauge 10 for measuring the pressure in the saccule 2, the pressure change condition of the saccule 2 can be seen through the pressure gauge 10, and whether water injection is needed or not is judged according to the bearing degree of the esophagus of a patient.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.