CN113941074B - Pharyngeal expansion device for gastroscopy of elderly patients - Google Patents
Pharyngeal expansion device for gastroscopy of elderly patients Download PDFInfo
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- CN113941074B CN113941074B CN202111336886.3A CN202111336886A CN113941074B CN 113941074 B CN113941074 B CN 113941074B CN 202111336886 A CN202111336886 A CN 202111336886A CN 113941074 B CN113941074 B CN 113941074B
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- layer capsule
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- 238000002575 gastroscopy Methods 0.000 title claims abstract description 30
- 239000002775 capsule Substances 0.000 claims description 91
- 239000012528 membrane Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004606 Fillers/Extenders Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 210000003800 pharynx Anatomy 0.000 abstract description 14
- 210000004712 air sac Anatomy 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 10
- 210000002784 stomach Anatomy 0.000 description 7
- 230000002496 gastric effect Effects 0.000 description 6
- 206010002091 Anaesthesia Diseases 0.000 description 5
- 230000037005 anaesthesia Effects 0.000 description 5
- 230000003902 lesion Effects 0.000 description 4
- 206010047700 Vomiting Diseases 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000001198 duodenum Anatomy 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/273—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
- A61B1/2736—Gastroscopes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Gastroenterology & Hepatology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a pharyngeal expansion device for gastroscopy of an elderly patient, which comprises a bendable deformation pipe fitting, an air sac expansion piece, a biting piece and an inflation assembly, wherein the bendable deformation pipe fitting is suitable for sliding through a gastroscope pipe; the air bag expanding piece is sleeved outside the proximal end of the bendable deformation pipe fitting and is provided with a first bag body and a second bag body which are axially arranged at intervals at the proximal end of the bendable deformation pipe fitting; the occlusion piece is arranged at the distal end of the bendable deformation pipe fitting so as to be occluded in the mouth by a patient; the inflation assembly is connected with the air bag expanding piece and is used for inflating the first bag body and the second bag body. According to the pharyngeal expansion device for gastroscopy of the elderly patient, provided by the embodiment of the invention, the pharyngeal expansion device can be used for expanding the pharynx of the patient, and is more friendly and comfortable for the patient.
Description
Technical Field
The invention relates to medical equipment, in particular to a pharyngeal expansion device for gastroscopy of an elderly patient.
Background
Gastroscopy is a medical examination method, also referred to as an instrument used for such examination. It is inserted into the stomach by means of a slender, flexible tube, and the doctor can directly observe the lesions of the esophagus, stomach and duodenum, especially for small lesions. The gastroscopy can directly observe the real condition of the checked part, and can further definitely diagnose the pathological biopsy and cytology check of the suspicious lesion part, thereby being the first checking method of the upper digestive tract lesion.
For elderly patients, if anesthesia is required, physical state assessment is required prior to anesthesia because anesthesia presents risks to the elderly patient, such as inhibition of respiration, blood pressure, heart rate reduction, etc. If the stomach tube is not anesthetized, the throat part is rubbed with the stomach tube when the stomach tube is inserted, so that discomfort such as nausea and vomiting is easily caused, and the aged patients are very uncomfortable in examination.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention aims to provide a pharyngeal expansion device for gastroscopy of an elderly patient.
To achieve the above object, a pharyngeal expansion device for gastroscopy of an elderly patient according to an embodiment of the present invention includes:
the bendable deformation pipe fitting is suitable for sliding the gastroscope tube to pass through;
The air bag expansion piece is sleeved outside the proximal end of the bendable deformation pipe fitting and is provided with a first bag body and a second bag body which are axially arranged at intervals at the proximal end of the bendable deformation pipe fitting;
a bite piece provided at a distal end of the bendable deformation tube for a patient to bite into the mouth;
and the inflation assembly is connected with the air bag expanding piece and is used for inflating the first bag body and the second bag body.
According to the pharyngeal expansion device for gastroscopy of the elderly patient, provided by the embodiment of the invention, the bendable deformation pipe fitting can be used for allowing the gastroscopy pipe to pass through, and penetrate into the stomach of the patient from the mouth of the patient, and the pharyngeal of the patient is expanded by utilizing the inflation of the air bag expansion piece, and the gastroscopy pipe slides downwards, so that on one hand, the gastric tube is convenient to insert after the pharyngeal is expanded, on the other hand, the gastric tube passes through the bendable deformation pipe fitting, so that the gastric tube cannot be stimulated by friction with the pharyngeal, nausea and vomiting are not easy to cause, the gastroscopy can be carried out more smoothly under the condition of not carrying out anesthesia, and the gastric tube is more friendly and comfortable to the patient.
In addition, the pharyngeal expansion device for gastroscopy of the elderly patient according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the present invention, the balloon dilator includes:
The inner layer capsule is formed into a tubular structure and sleeved outside the proximal end of the bendable deformation pipe fitting;
the outer layer capsule is positioned outside the inner layer capsule, the outer layer capsule comprises a first expansion part and a second expansion part which are connected, the first expansion part and the second expansion part are axially arranged at intervals at the proximal end of the bendable deformation pipe fitting, the first expansion part is defined between the first expansion part and the inner layer capsule, and the second expansion part is defined between the second expansion part and the inner layer capsule;
The binding ring is sleeved at the joint of the first expansion part and the second expansion part to limit the expansion of the joint of the first expansion part and the second expansion part;
one end of the first expansion part far away from the second expansion part is in sealing connection with one end of the inner layer capsule membrane, and one end of the second expansion part far away from the first expansion part is in sealing connection with the other end of the inner layer capsule membrane.
According to one embodiment of the present invention, the outer layer capsule further includes a first standby pressure portion connected between the first expansion portion and the one end of the inner layer capsule, and a first standby pressure capsule is defined between the first standby pressure portion and the inner layer capsule; the first standby pressure bag body is communicated with the first bag body, and the diameter of the first standby pressure bag body is smaller than that of the first bag body;
According to one embodiment of the present invention, the outer layer capsule further includes a second backup portion connected between the second inflation portion and the other end of the inner layer capsule, and a second backup capsule is defined between the second backup portion and the inner layer capsule; the second standby pressure bag body is communicated with the second bag body, and the diameter of the second standby pressure bag body is smaller than that of the second bag body.
According to one embodiment of the invention, the bendable deformation tube comprises:
the inner tube is suitable for passing through the gastroscope tube;
the outer pipe sleeve is sleeved outside the inner pipe in a sliding manner;
the air bag expanding piece is sleeved at one end of the inner tube, the proximal end of the air bag expanding piece is connected with the inner tube, the distal end of the air bag expanding piece is connected with the proximal end of the outer tube, and when the outer tube slides relative to the inner tube, the air bag expanding piece is extruded from two ends to the middle.
According to one embodiment of the invention, the proximal end of the inner tube has a first stop projecting radially outwardly, the distal end of the outer tube has a second stop projecting radially outwardly, and the balloon extender is sandwiched between the first and second stops.
According to one embodiment of the invention, the device further comprises a rotation adjusting member which is arranged on the engagement member in a pivotable manner around the axis of the rotation adjusting member and is provided with a threaded hole;
The distal end of the inner tube is provided with external threads matched with the threaded holes, the proximal end of the rotation adjusting piece abuts against the distal end of the outer tube, and when the rotation adjusting piece rotates, the outer tube and the inner tube are pushed to slide relatively through the rotation adjusting piece.
According to one embodiment of the invention, the bite piece has a pivot hole;
The rotation adjusting piece comprises a rod portion and a knob portion, the rod portion is arranged in the pivot hole in a penetrating mode and can pivot around the axis of the rod portion, the threaded hole is formed in the rod portion, the proximal end of the rod portion abuts against the distal end of the outer tube, and the knob portion is arranged at the distal end of the rod portion and abuts against one side, away from the proximal end of the rod portion, of the engagement piece.
According to one embodiment of the invention, the engaging member comprises an inner tooth baffle, an outer tooth baffle and a connecting part connected between the inner tooth baffle and the outer tooth baffle, an engaging gap for the teeth to be engaged is defined between the inner tooth baffle and the outer tooth baffle, and the pivot hole penetrates through the inner tooth baffle after passing through the connecting part from the outer tooth baffle.
According to one embodiment of the invention, the inflation assembly comprises an inflation tube and an extrusion inflation balloon, one end of the inflation tube is connected to the air bag expanding piece, and the other end of the inflation tube is connected to the extrusion inflation balloon after passing through the engagement piece.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the structure of a pharyngeal expansion device for gastroscopy of an elderly patient according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of the balloon dilator position in a pharyngeal dilator for gastroscopy of an elderly patient in accordance with an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of the position of the bite block in a pharyngeal expansion device for gastroscopy of an elderly patient according to an embodiment of the present invention;
FIG. 4 is an exploded view of a pharyngeal expansion device for gastroscopy of an elderly patient in accordance with an embodiment of the present invention.
Reference numerals:
10. a bendable deformed tube;
101. An inner tube;
1011. A first blocking edge;
1012. An external thread;
102. An outer tube;
1021. a second blocking edge;
20. a balloon dilator;
201. an inner layer capsule;
202. an outer envelope;
2021. a first expansion section;
2022. a second expansion section;
H21, first capsule;
h22, second capsule;
203. A first standby part;
204. a second standby part;
h23, the first standby pressure bag body;
H24, a second standby pressure bag body;
30. a bite piece;
301. A tooth inner baffle;
302. An outer tooth baffle;
303. A connection part;
X30, bite gap;
40. an inflation assembly;
401. Extruding the inflatable balls;
402. an inflation tube;
50. rotating the adjusting member;
501. A stem portion;
502. A knob portion;
60. Gastroscope tube.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, and all other embodiments, based on the embodiments of the present invention, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The pharyngeal expansion device for gastroscopy of an elderly patient according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 4, a pharyngeal expansion device for gastroscopy of an elderly patient according to an embodiment of the present invention includes a bendable deformation tube 10, a balloon expander 20, a bite piece 30, and an inflation assembly 40.
In particular, the bendable deformation tube 10 is suitable for sliding the gastroscope tube 60 therethrough, and the bendable deformation tube 10 may be a plastic tube having a certain hardness or a metal tube capable of bending deformation. The bendable deformation tube 10 may be inserted through the mouth of a patient into the eyes of the patient.
The balloon expanding member 20 is sleeved outside the proximal end of the bendable deformation tube 10, the balloon expanding member 20 is provided with a first balloon body H21 and a second balloon body H22, and the first balloon body H21 and the second balloon body H22 are axially arranged at intervals at the proximal end of the bendable deformation tube 10. That is, the balloon expandable member 20 can be extended into the pharynx of the patient along with the bendable deforming tube 10, and the inflatable member 20 is inflated by the inflation assembly 40, so that the first and second balloons H21 and H22 can be inflated, and the inflated first and second balloons H21 and H22 can expand the pharynx of the patient. In addition, the first capsule body H21 and the second capsule body H22 which are arranged at intervals are adopted, the first capsule body H21 and the second capsule body H22 are propped against the pharyngeal portion at two different positions, so that the pharyngeal portion can be opened more fully, the two-point positioning of the air bag expanding piece 20 can be ensured, and the positioning and fixing of the air bag expanding piece 20 on the eye of a patient are more reliable.
A bite piece 30 is provided at the distal end of the bendable deformation tube 10 for biting into the mouth of a patient. The bite piece 30 can be used for biting a patient in the mouth, on the one hand, to assist the patient in keeping the mouth open, and on the other hand, the bite piece 30 is connected with the bendable deformation tube 10, so that the pharyngeal expansion device for gastroscopy of the elderly patient can be kept fixed in the mouth.
The inflation assembly 40 is connected to the balloon expander 20 for inflating the first and second balloons H21 and H22, and when the balloon expander 20 is inserted into the pharynx, the inflation assembly 40 can be used to inflate the balloon expander 20, and the first and second balloons H21 and H22 can expand the pharynx of the patient.
According to the pharyngeal expansion device for gastroscopy of the elderly patient, provided by the embodiment of the invention, the bendable deformation pipe fitting 10 can be used for allowing the gastroscopy pipe 60 to pass through, and penetrate into the stomach of the patient from the mouth of the patient, and the pharyngeal of the patient is expanded by using the air bag expansion piece 20 to expand after being inflated, and then the gastroscopy pipe 60 slides downwards, so that on one hand, the pharyngeal is conveniently inserted after being expanded, and on the other hand, the gastric pipe passes through the bendable deformation pipe fitting 10, so that the gastric pipe cannot be stimulated by friction with the pharyngeal, nausea and vomiting are not easy to cause, the gastroscopy can be carried out more smoothly under the condition of not carrying out anesthesia, and the pharyngeal expansion device is more friendly and comfortable for the patient.
It should be noted that, in the present application, the "proximal end" is referred to as an end that is close to the human body in use, and the "distal end" is referred to as an end that is far from the human body in use.
In addition, the depth to which the balloon expander 20 is extended is 10cm to 15cm, and the width of the balloon expander 20 to the pharyngeal expansion is enough to allow the gastroscope tube to pass smoothly, and the width of the gastroscope tube is generally 8.9 to 13.5mm.
In one embodiment of the present invention, the balloon dilator 20 includes an inner balloon 201, an outer balloon 202, and a collar, the inner balloon 201 being formed in a tubular configuration and sleeved over the proximal end of the bendable deformation tube 10.
The outer layer capsule 202 is located outside the inner layer capsule 201, the outer layer capsule 202 includes a first expansion portion 2021 and a second expansion portion 2022 connected to each other, the first expansion portion 2021 and the second expansion portion 2022 are axially spaced apart from each other at a proximal end of the flexible deformation tube 10, the first expansion portion 2021 and the inner layer capsule 201 define therebetween the first expansion capsule, and the second expansion portion 2022 and the inner layer capsule 201 define therebetween the second expansion capsule.
And a collar sleeved at the connection between the first expansion part 2021 and the second expansion part 2022 to limit expansion of the connection between the first expansion part 2021 and the second expansion part 2022.
One end of the first expansion portion 2021 away from the second expansion portion 2022 is in sealing connection with one end of the inner layer capsule 201, and one end of the second expansion portion 2022 away from the first expansion portion 2021 is in sealing connection with the other end of the inner layer capsule 201.
That is, the balloon expandable member 20 is mainly composed of an inner layer capsule 201 and an outer layer capsule 202, the inner layer capsule 201 is sleeved on the proximal end of the inner tube 101, the outer layer capsule 202 is positioned outside the inner layer capsule 201, and two ends of the outer layer capsule 202 are sealed and molded with two ends of the inner layer capsule 201, so that an inflatable space can be formed between the inner layer capsule 201 and the outer layer capsule 202. In addition, the outer envelope 202 has the first expansion portion 2021 and the second expansion portion 2022 arranged at intervals in the axial direction, when the inflation space is inflated, the first expansion portion 2021 and the second expansion portion 2022 expand outward, and the connection between the first expansion portion 2021 and the second expansion portion 2022 cannot expand due to the restriction of the collar, so that the first expansion portion 2021 and the second expansion portion 2022 can be made to abut against the inner wall of the pharynx after expansion, respectively, and thus, with the above-described structure, the above-described first balloon H21 and second balloon H22 can be easily formed, the structure is simple, and the first balloon H21 and second balloon H22 can be ensured to expand when the inflation is performed.
In some embodiments of the present invention, the bendable deformation tube 10 comprises an inner tube 101 and an outer tube 102, wherein the inner tube 101 is adapted to be passed through by the gastroscope tube 60, and the outer tube 102 is slidably sleeved outside the inner tube 101. The balloon expander 20 is sleeved at one end of the inner tube 101, the proximal end of the balloon expander 20 is connected with the inner tube 101, the distal end of the balloon expander 20 is connected with the proximal end of the outer tube 102, and when the outer tube 102 slides relative to the inner tube 101, the balloon expander 20 is extruded from both ends to the middle.
In the pharyngeal expansion process using the pharyngeal expansion device for gastroscopy of an elderly patient, after the proximal end of the bendable and deformable tube 10 is inserted into the pharynx of the patient, the balloon expander 20 may be inflated by the inflation assembly 40, so that the first balloon H21 and the second balloon H22 on the balloon expander 20 are inflated, and the first balloon H21 and the second balloon H22 are abutted against the inner wall of the pharynx. Because the inflation amount is difficult to accurately control when the inflation assembly 40 is inflated, and accordingly, after the first balloon H21 and the second balloon H22 are inflated to a certain extent and are abutted against the inner wall of the pharynx, it is difficult to control the first balloon H21 and the second balloon H22 to further expand to a smaller extent, and in this case, the first balloon H21 and the second balloon H22 are not suitable for large-scale inflation, and are easy to cause discomfort to a patient, even damage to the pharynx due to excessive pressure, so in order to control the inflation of the first balloon H21 and the second balloon H22 to a small extent, in this embodiment, the proximal end of the balloon expander 20 is connected with the inner tube 101, the distal end of the balloon expander 20 is connected with the proximal end of the outer tube 102, and the inner tube 101 and the outer tube 102 can relatively slide, and can push the inner tube 101 to relatively slide after the first balloon H21 and the second balloon H22 are inflated to a certain extent and are abutted against the inner wall of the pharynx, and further can push the balloon 102 and further expand the balloon 20 from the middle to squeeze the first balloon H21 and the outer tube 101 to the two ends to the small extent, thus the problem that the pressure of the pharynx can be prevented from being damaged by the small-scale can be solved, and the problem of the inflation can be avoided by adjusting the small-scale between the inner tube and the outer tube 101 and the outer tube 102.
In one embodiment of the present invention, the outer layer capsule 202 further includes a first backup portion 203, the first backup portion 203 is connected between the first expansion portion 2021 and the one end of the inner layer capsule 201, and a first backup capsule H23 is defined between the first backup portion 203 and the inner layer capsule 201; the first standby pressure bag body H23 is communicated with the first bag body H21, and the diameter of the first standby pressure bag body H23 is smaller than that of the first bag body H21.
Correspondingly, the outer layer capsule 202 further comprises a second standby pressing part 204, the second standby pressing part 204 is connected between the second expansion part 2022 and the other end of the inner layer capsule 201, and a second standby pressing capsule H24 is defined between the second standby pressing part 204 and the inner layer capsule 201; the second standby pressure bag body H24 is communicated with the second bag body H22, and the diameter of the second standby pressure bag body H24 is smaller than that of the second bag body H22.
That is, the balloon expander 20 has a first backup portion 203 and a second backup portion 204 at both ends thereof, and a first backup balloon H23 and a second backup balloon H24 are provided inside the first backup balloon H23 and the second backup balloon H24, respectively, the first backup balloon H23 being in communication with the first balloon H21, and the second backup balloon H24 being in communication with the second balloon H22.
When the outer tube 102 and the inner tube 101 slide relatively, the first pressure-preparing capsule H23 and the second pressure-preparing capsule H24 are compressed, and the gas in the first capsule H21 and the second capsule H22 in the middle flows into the first capsule H21 and the second capsule H22, so that the first capsule H21 and the second capsule H22 can be expanded, in other words, the first pressure-preparing capsule H23 and the second pressure-preparing capsule H24 are adopted, the first capsule H21 and the second capsule H22 can be ensured to be stably and reliably expanded during small-amplitude expansion adjustment, and the deformation of the first capsule H21 and the second capsule H22 in the axial direction is small, so that the contact area between the first capsule H21 and the second capsule H22 and the pharynx is kept unchanged due to the axial deformation.
In one embodiment of the present invention, the proximal end of the inner tube 101 has a first flange 1011 protruding radially outward, the distal end of the outer tube 102 has a second flange 1021 protruding radially outward, and the balloon extender 20 is sandwiched between the first flange 1011 and the second flange 1021.
In this embodiment, the air bag expanding member 20 is disposed between the first blocking edge 1011 and the second blocking edge 1021, and the first blocking edge 1011 is located at the proximal end of the inner tube 101, and the second blocking edge 1021 is located at the proximal end of the outer tube 102, when the inner tube 101 and the outer tube 102 slide relatively, the first blocking edge 1011 and the second blocking edge 1021 slide relatively, and when the first blocking edge 1011 and the second blocking edge 1021 are relatively close, both ends of the air bag expanding member 20 can be extruded, so that the air in the first pressure-preparing capsule H23 and the second pressure-preparing capsule H24 flows into the first capsule H21 and the second capsule H22, and the expansion of the first capsule H21 and the second capsule H22 is micro-regulated.
In one embodiment of the invention, a rotation adjustment member 50 is further included, the rotation adjustment member 50 being pivotally provided on the bite member 30 about its own axis, and the rotation adjustment member 50 having a threaded hole.
The distal end of the inner tube 101 has an external thread 1012 that mates with the threaded hole, the proximal end of the rotation adjuster 50 abuts against the distal end of the outer tube 102, and when the rotation adjuster 50 rotates, the outer tube 102 is pushed by the rotation adjuster 50 to slide relative to the inner tube 101.
In this embodiment, the knob adjusting member is in threaded engagement with the distal end of the inner tube 101, and the proximal end of the knob adjusting member abuts against the distal end of the outer tube 101, so that the knob adjusting member can move along the axial direction of the inner tube 101 by rotating the knob adjusting member, and when the knob adjusting member moves, a pushing force can be generated on the distal end of the outer tube 102, so that the outer tube 102 and the inner tube 101 are forced to slide relatively, and thus, the air bag expanding member 20 can be adjusted in a small amplitude. The knob adjusting piece is adopted for rotary adjustment, so that the adjusting precision is high, the range is wide, and the operation is convenient.
In one example of the invention, the snap 30 has a pivot hole. The rotation adjusting member 50 includes a lever portion 501 and a knob portion 502, the lever portion 501 is disposed in the pivot hole in a penetrating manner and is pivotable about its own axis, the threaded hole is formed in the lever portion 501, the proximal end of the lever portion 501 abuts against the distal end of the outer tube 102, and the knob portion 502 is disposed at the distal end of the lever portion 501 and abuts against a side of the engagement member 30 away from the proximal end of the lever portion 501.
During the adjustment operation, only the knob portion 502 needs to be held for rotation, the knob portion 502 can drive the rod portion 501 to rotate, the rod portion 501 is in threaded fit with the distal end of the inner tube 101, and when the outer tube 102 and the inner tube 101 can be pushed to slide relatively by the rod portion 501 during the actual downward rotation through the threaded fit, and the operation is very convenient.
In one embodiment of the present invention, the engaging member 30 includes an inner tooth baffle 301, an outer tooth baffle 302, and a connecting portion 303 connected between the inner tooth baffle 301 and the outer tooth baffle 302, wherein an engaging gap X30 into which teeth can be engaged is defined between the inner tooth baffle 301 and the outer tooth baffle 302, and the pivot hole penetrates the inner tooth baffle 301 from the outer tooth baffle 302 through the connecting portion 303. When in use, teeth are meshed in the meshing gap X30 between the inner baffle 301 and the outer baffle 302, so that the teeth are convenient to mesh and are reliably fixed after meshing.
In one embodiment of the present invention, the inflation assembly 40 includes an inflation tube 402 and an extrusion inflation balloon 401, one end of the inflation tube 402 is connected to the balloon expander 20, and the other end of the inflation tube 402 is connected to the extrusion inflation balloon 401 after passing through the engagement member 30, so that the inflation of the balloon expander 20 can be performed by manually extruding the extrusion inflation balloon 401, and the operation is convenient.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (5)
1. A pharyngeal expansion device for gastroscopy of an elderly patient, comprising:
the bendable deformation pipe fitting is suitable for sliding the gastroscope tube to pass through;
The air bag expansion piece is sleeved outside the proximal end of the bendable deformation pipe fitting and is provided with a first bag body and a second bag body which are axially arranged at intervals at the proximal end of the bendable deformation pipe fitting;
a bite piece provided at a distal end of the bendable deformation tube for a patient to bite into the mouth;
The inflation assembly is connected with the air bag expanding piece and is used for inflating the first bag body and the second bag body;
The air bag expanding piece comprises an inner layer capsule membrane, an outer layer capsule membrane and a binding ring, wherein the inner layer capsule membrane is formed into a tubular structure and sleeved outside the proximal end of the bendable deformation pipe fitting; the outer layer capsule is positioned outside the inner layer capsule, the outer layer capsule comprises a first expansion part and a second expansion part which are connected, the first expansion part and the second expansion part are axially arranged at intervals at the proximal end of the bendable deformation pipe fitting, a first expansion capsule part is defined between the first expansion part and the inner layer capsule, and a second expansion capsule part is defined between the second expansion part and the inner layer capsule; the binding ring is sleeved at the joint of the first expansion part and the second expansion part to limit the expansion of the joint of the first expansion part and the second expansion part; one end of the first expansion part far away from the second expansion part is in sealing connection with one end of the inner layer capsule, and one end of the second expansion part far away from the first expansion part is in sealing connection with the other end of the inner layer capsule;
The outer layer capsule membrane further comprises a first standby pressing part, the first standby pressing part is connected between the first expansion part and one end of the inner layer capsule membrane, and a first standby pressing capsule body is defined between the first standby pressing part and the inner layer capsule membrane; the first standby pressure bag body is communicated with the first bag body, and the diameter of the first standby pressure bag body is smaller than that of the first bag body;
The outer layer capsule membrane further comprises a second standby pressing part, the second standby pressing part is connected between the second expansion part and the other end of the inner layer capsule membrane, and a second standby pressing capsule body is defined between the second standby pressing part and the inner layer capsule membrane; the second standby pressure bag body is communicated with the second bag body, and the diameter of the second standby pressure bag body is smaller than that of the second bag body;
The bendable deformation pipe fitting comprises an inner pipe and an outer pipe, wherein the inner pipe is suitable for passing through a gastroscope pipe; the outer pipe sleeve is sleeved outside the inner pipe in a sliding manner; the air bag expanding piece is sleeved at one end of the inner tube, the proximal end of the air bag expanding piece is connected with the inner tube, the distal end of the air bag expanding piece is connected with the proximal end of the outer tube, and when the outer tube slides relative to the inner tube, the air bag expanding piece is extruded from two ends to the middle;
The inflation assembly comprises an inflation tube and an extrusion inflation ball, one end of the inflation tube is connected to the air bag expanding piece, and the other end of the inflation tube penetrates through the engagement piece and then is connected to the extrusion inflation ball.
2. The gastroscopy pharyngeal expansion device for advanced patients according to claim 1, wherein the proximal end of the inner tube has a first stop edge protruding radially outward, the distal end of the outer tube has a second stop edge protruding radially outward, and the balloon extender is sandwiched between the first stop edge and the second stop edge.
3. The pharyngeal expansion device for gastroscopy of an elderly patient according to claim 1, further comprising a rotation regulating member pivotally provided on the bite member about its own axis, and having a threaded hole;
The distal end of the inner tube is provided with external threads matched with the threaded holes, the proximal end of the rotation adjusting piece abuts against the distal end of the outer tube, and when the rotation adjusting piece rotates, the outer tube and the inner tube are pushed to slide relatively through the rotation adjusting piece.
4. A pharyngeal expansion device for gastroscopy of an elderly patient according to claim 3, wherein said bite piece has a pivot hole;
The rotation adjusting piece comprises a rod portion and a knob portion, the rod portion is arranged in the pivot hole in a penetrating mode and can pivot around the axis of the rod portion, the threaded hole is formed in the rod portion, the proximal end of the rod portion abuts against the distal end of the outer tube, and the knob portion is arranged at the distal end of the rod portion and abuts against one side, away from the proximal end of the rod portion, of the engagement piece.
5. The pharyngeal expansion device of claim 4, wherein the bite member comprises an intra-dental flap, an extra-dental flap, and a connection portion connected between the intra-dental flap and the extra-dental flap, the intra-dental flap and the extra-dental flap defining a bite gap therebetween into which a tooth is engaged, the pivot hole extending through the intra-dental flap from the extra-dental flap through the connection portion.
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| CN202111336886.3A CN113941074B (en) | 2021-11-12 | 2021-11-12 | Pharyngeal expansion device for gastroscopy of elderly patients |
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| CN113941074A (en) | 2022-01-18 |
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