CN111729183B - Hysteroscopic thrombus prevention device and hysteroscopic infusion device - Google Patents
Hysteroscopic thrombus prevention device and hysteroscopic infusion device Download PDFInfo
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- CN111729183B CN111729183B CN202010750597.7A CN202010750597A CN111729183B CN 111729183 B CN111729183 B CN 111729183B CN 202010750597 A CN202010750597 A CN 202010750597A CN 111729183 B CN111729183 B CN 111729183B
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- 238000001802 infusion Methods 0.000 title claims abstract description 25
- 208000007536 Thrombosis Diseases 0.000 title claims description 29
- 230000002265 prevention Effects 0.000 title claims description 6
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000005484 gravity Effects 0.000 abstract description 6
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 208000005189 Embolism Diseases 0.000 abstract 3
- 230000010339 dilation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 210000004291 uterus Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 206010001526 Air embolism Diseases 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010410 reperfusion Effects 0.000 description 2
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 231100000668 minimum lethal dose Toxicity 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
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- 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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12136—Balloons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12159—Solid plugs; being solid before insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B17/4241—Instruments for manoeuvring or retracting the uterus, e.g. during laparoscopic surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B2017/4216—Operations on uterus, e.g. endometrium
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/14—Female reproductive, genital organs
- A61M2210/1433—Uterus
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Reproductive Health (AREA)
- Vascular Medicine (AREA)
- Gynecology & Obstetrics (AREA)
- Pregnancy & Childbirth (AREA)
- Anesthesiology (AREA)
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Abstract
本发明的实施例提供了一种宫腔镜防栓器及宫腔镜输液器，涉及宫腔镜输液器领域。旨在改善在连续加压膨宫的宫腔镜手术中，气体易输入宫腔的问题。宫腔镜防栓器包括壳体，壳体内形成依次连通的进液口、第一通道以及出液口；闭止塞以及气囊，闭止塞可滑动地设置在壳体内；气囊设置在闭止塞上。宫腔镜输液器包括输液管以及宫腔镜防栓器。在加注瓶中的液体排空时，壳体内的液体流走，闭止塞的重力大于浮力而下降与第一通道贴合，密封第一通道，加注瓶还会继续向壳体内输送气体，使得进液口的气压大于出液口的气压，此时，气囊膨胀，再次密封通道，在加注瓶内的液体排空后，气囊的膨胀能够有效阻止气体流入宫腔。
The embodiment of the present invention provides a hysteroscopic embolism preventer and a hysteroscopic infusion device, which relate to the field of hysteroscopic infusion devices. The invention aims to improve the problem that gas is easily input into the uterine cavity during hysteroscopic surgery with continuous pressurization and uterine dilation. The hysteroscopic embolism preventer includes a shell, in which a liquid inlet, a first channel and a liquid outlet are formed in sequence; a closing plug and an air bag, the closing plug can be slidably arranged in the shell; the air bag is arranged on the closing plug. The hysteroscopic infusion device includes an infusion tube and a hysteroscopic embolism preventer. When the liquid in the filling bottle is emptied, the liquid in the shell flows away, the gravity of the closing plug is greater than the buoyancy and the closing plug falls to fit the first channel, sealing the first channel, and the filling bottle will continue to transport gas into the shell, so that the air pressure of the liquid inlet is greater than the air pressure of the liquid outlet. At this time, the air bag expands and seals the channel again. After the liquid in the filling bottle is emptied, the expansion of the air bag can effectively prevent the gas from flowing into the uterine cavity.
Description
Technical Field
The invention relates to the field of hysteroscope infusion sets, in particular to a hysteroscope thrombus prevention device and a hysteroscope infusion set.
Background
Hysteroscopic gas embolism is a serious complication of hysteroscopic surgery that threatens patient safety. Once this occurs, the patient dies instantaneously. The amount of the inlet gas depends on the size of the open blood sinus of the surgical incision, and corresponding clinical symptoms can occur when the amount of the inlet gas reaches 100 mL. At present, the minimum lethal dose of human air embolism is not clear, but the literature reports that death can be caused when the air embolism reaches 3-4 mL/kg.
In the prior art, a structure for preventing risks caused by air mistakenly entering in the intravenous infusion process is arranged in a common infusion apparatus. This structure has the following disadvantages:
1. the method is insufficient for avoiding gas input in the hysteroscopic operation process of continuously pressurizing and expanding uterus, and is complex in operation of recovering reperfusion and exhausting after the operation is interrupted, and more time is consumed.
Disclosure of Invention
Objects of the present invention include, for example, providing a hysteroscope thrombus preventer which can improve the problem of easy gas input into the uterine cavity in a hysteroscope operation of continuously pressurizing and distending the uterus.
The invention also aims to provide a hysteroscope infusion set which can solve the problem that gas is easy to input into a uterine cavity in a hysteroscope operation of continuously pressurizing and expanding uterus.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a hysteroscope anti-thrombus device, which comprises:
The shell is internally provided with a liquid inlet, a first channel and a liquid outlet which are communicated in sequence;
the closing plug is slidably arranged in the shell and is used for being separated from the first channel under the action of buoyancy so as to open the first channel or is used for being attached to the first channel after the buoyancy is lost so as to seal the first channel; the air bag is arranged on the closing plug and is used for expanding when the pressure of the liquid inlet is larger than that of the liquid outlet so as to seal the first channel.
In addition, the hysteroscope thrombus preventing device provided by the embodiment of the invention can also have the following additional technical characteristics:
Optionally, a boss is arranged on the inner wall of the shell, and the first channel is limited by the boss;
The closing plug comprises a first closing part and a second closing part which are connected in sequence, the first closing part is positioned between the liquid inlet and the boss, and the second closing part is slidably arranged in the first channel;
The first locking part is used for being separated from the boss under the action of buoyancy so as to open the first channel, or is used for being attached to the end part of the boss after the buoyancy is lost so as to seal the first channel.
Optionally, the second closing part blocks the liquid outlet when the first closing part is attached to the end part of the boss.
Optionally, the air bag is sleeved on the periphery of the second closing part and is positioned between the outer wall of the second closing part and the inner wall of the first channel, and the air bag is used for simultaneously clinging to the outer wall of the second closing part and the inner wall of the first channel when expanding.
Optionally, the closing plug further comprises a pressure-bearing cap, the pressure-bearing cap is arranged on the first closing part and is positioned between the liquid inlet and the first closing part, the pressure-bearing cap is communicated with the air bag, and the pressure-bearing cap is used for being compressed when the pressure of the liquid inlet is greater than that of the liquid outlet so as to expand the air bag.
Optionally, the first closing and stopping part is provided with a second channel, the second closing and stopping part is provided with a third channel and an air hole for communicating the third channel with the air bag, and the third channel is communicated with the second channel.
Optionally, the pressure-bearing cap, the first closing part and the second closing part are sequentially connected along the extending direction of the first channel, and the second channel and the third channel are arranged along the extending direction of the first channel.
Optionally, the pressure cap is provided with an arc surface protruding towards the liquid inlet.
Optionally, the hysteroscope bolt preventer further comprises a limiting grid arranged between the liquid inlet and the first closing part, wherein the limiting grid is used for preventing the second closing part from exiting the first channel.
The embodiment of the invention also provides a hysteroscope infusion set, which comprises an infusion tube and a hysteroscope anti-thrombus device, wherein the hysteroscope anti-thrombus device is arranged on the infusion tube.
The hysteroscope thrombus preventing device and the hysteroscope infusion set have the beneficial effects that:
The hysteroscope anti-thrombus device is characterized in that in the use process, the bulging cavity liquid enters the shell from the liquid inlet and then enters the uterine cavity from the liquid outlet. When the liquid in the filling bottle is emptied, the liquid in the shell flows away, the gravity of the closing plug is larger than the buoyancy and falls to be attached to the first channel, the first channel is sealed, the filling bottle can further convey gas into the shell, the gas pressure of the liquid inlet is larger than the gas pressure of the liquid outlet, at the moment, the air bag is expanded, the channel is sealed again, after the liquid in the filling bottle is emptied, the filling bottle can further input gas into the shell, the first channel is sealed only by the closing plug, the risk of gas entering exists, at the moment, the expansion of the air bag can effectively seal the first channel, and then the pressurized gas is effectively prevented from flowing into the uterine cavity, the first channel is sealed in a double mode, and compared with the hysteroscope anti-thrombus device provided by the embodiment, the effect of preventing gas input is better.
When the circulating personnel find abnormality, when the filling bottle filled with liquid is replaced, the air pressure of the liquid inlet is reduced, the air bag is retracted, the air bag cannot continuously seal the first channel, when the liquid in the filling bottle enters the shell to a certain depth, the gravity of the closing plug is smaller than the buoyancy force and rises to be separated from the channel, the first channel is completely opened, the liquid enters the uterine cavity from the liquid outlet, the uterus and the operation are restored, and the operation can be performed rapidly and efficiently. In the process of replacing the filling bottle and enabling the liquid to enter the shell, the original gas in the shell flows from bottom to top, cannot flow out of the liquid outlet and cannot enter the uterine cavity, so that the gas is effectively prevented from entering the uterine cavity, and meanwhile, medical staff can omit the steps of stopping pressurization, extruding a leather tube, turning over the filling bottle and the like for exhausting again, and can directly fill the liquid.
The hysteroscope infusion set comprises the hysteroscope anti-thrombus device, and can solve the problem that gas is easy to input into a hysteroscope cavity in a hysteroscope operation of continuously pressurizing and expanding uterus.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a hysteroscope thrombus preventing device according to an embodiment of the present invention.
The icons are 10-hysteroscope bolt preventer, 100-shell, 110-liquid inlet, 120-first channel, 130-liquid outlet, 140-liquid inlet pipe, 150-liquid outlet pipe, 160-boss, 200-closing plug, 210-first closing part, 211-second channel, 220-second closing part, 221-third channel, 222-air hole, 300-air bag, 400-pressure cap and 500-limit grid.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The hysteroscope thrombus preventing device 10 according to the present embodiment will be described in detail with reference to fig. 1.
Referring to fig. 1, an embodiment of the disclosure provides a hysteroscope bolt preventer 10, which comprises a housing 100, a liquid inlet 110, a first channel 120 and a liquid outlet 130 which are sequentially communicated with each other, a closing plug 200 and an air bag 300, wherein the closing plug 200 is slidably arranged in the housing 100, the closing plug 200 is used for separating from the first channel 120 under the action of buoyancy so as to open the first channel 120 or is used for being attached to the first channel 120 after the buoyancy disappears so as to seal the first channel 120, the air bag 300 is arranged on the closing plug 200, and the air bag 300 is used for expanding when the pressure of the liquid inlet 110 is greater than the pressure of the liquid outlet 130 so as to seal the first channel 120.
The hysteroscope thrombus-preventing device 10 provided by the embodiment is mainly used in a hysteroscope infusion set, and can also be used in other infusion structures for conveying pressurized liquid and used for preventing gas from entering in the infusion process. In this embodiment, the hysteroscope thrombus preventing device 10 is used for the delivery of the inflation lumen.
Referring to the relative positions of fig. 1, the liquid inlet 110, the first channel 120, and the liquid outlet 130 are sequentially disposed along the vertical direction. This is also the normal placement of hysteroscope thrombus preventer 10 during use, and bulge Gong Ye enters housing 100 from inlet 110 and into the uterine cavity from outlet 130 during use.
Specifically, the liquid inlet 110 is used for communicating with a filling bottle, and the liquid outlet 130 is used for communicating with the uterine cavity of a human body. When the liquid in the filling bottle is emptied, the liquid in the shell 100 is emptied, or a small amount of liquid remains, and at this time, the gravity of the closing plug 200 is greater than the buoyancy, and the closing plug 200 is attached to the first channel 120 after being lowered, so that the first channel 120 is sealed. At this time, the filling bottle can further input gas, so that the gas pressure of the liquid inlet 110 is greater than the gas pressure of the liquid outlet 130, and the air bag 300 is inflated, and the air bag 300 seals the first channel 120, so as to realize double sealing. After the liquid in the filling bottle is emptied, the filling bottle can still continue to input the gas, if the sealing is realized only by the fitting of the closing plug 200 and the first channel 120, the probability of the gas entering the uterine cavity is high, and in the embodiment, the inflation of the air bag 300 can effectively prevent the gas from flowing into the uterine cavity.
The staff finds that the filling bottle is emptied, the filling bottle is replaced, the air pressure of the liquid inlet 110 is reduced while the filling bottle is replaced, the air bag 300 is retracted, a gap is formed between the air bag 300 and the first channel 120, the first channel 120 cannot be continuously sealed, liquid in the filling bottle continuously flows into the shell 100, the buoyancy force born by the closing plug 200 is greater than the gravity force of the liquid, the closing plug 200 rises, the closing plug 200 is separated from the first channel 120, the first channel 120 is completely opened, and the liquid can normally flow to the uterine cavity. In the process of replacing the filling bottle, medical staff can omit the steps of stopping pressurization, extruding the leather tube, turning over the filling bottle and the like for exhausting again, directly injecting liquid, and simplifying the steps.
Specifically, the housing 100 has a hollow columnar shape, and the diameter of the outer shell is 30mm and the thickness is 1mm.
Referring to fig. 1, in the present embodiment, a boss 160 is disposed on an inner wall of the housing 100, the first channel 120 is defined by the boss 160, the stopper 200 includes a first stopper 210 and a second stopper 220 sequentially connected, the first stopper 210 is located between the liquid inlet 110 and the boss 160, the second stopper 220 is slidably disposed in the first channel 120, and the first stopper 210 is used for separating from the boss 160 under the action of buoyancy to open the first channel 120, or is used for attaching to an end of the boss 160 after the buoyancy disappears to seal the first channel 120.
Specifically, the boss 160 includes a closed loop and a closed cylinder, the closed cylinder having a first passage 120 extending in a vertical direction, and a top end of the closed cylinder and an inner wall of the housing 100 are connected by the closed loop. The relative positions in fig. 1 are presented, the closed loop is arranged horizontally and the closed cylinder is arranged vertically. The first stopper 210 moves up and down along the extending direction of the first passage 120 during the increase and decrease of the buoyancy, and limits the moving direction of the stopper 200. Specifically, the first passage 120 has an inner diameter of 10mm, the thickness of the stopper ring and the stopper tube of 2mm, and the length of the stopper tube of 15mm.
Specifically, the first stopper 210 has an outer edge protruding radially opposite the second stopper 220 for sealing the first passage 120 when in engagement with the end of the boss 160. Referring to the relative positions of fig. 1, the outer rim has an upper surface and a lower surface disposed in sequence from top to bottom, the boss 160 has a top end surface at the top end, and the stopper 200 seals the first channel 120 when the lower surface is in contact with the top end surface. And a sealing rubber layer can be arranged on the lower surface and the top end surface, so that the sealing effect is improved.
With continued reference to fig. 1, in the present embodiment, when the first blocking portion 210 is attached to the end of the boss 160, the second blocking portion 220 blocks the liquid outlet 130. Specifically, the second locking portion 220 has a bottom surface at the bottom end, and the bottom surface is attached to the liquid outlet 130 to seal the liquid outlet 130. Specifically, the hysteroscope thrombus preventing device 10 further includes a liquid inlet pipe 140 and a liquid outlet pipe 150, the liquid inlet pipe 140 is installed at the liquid inlet 110, the liquid outlet pipe 150 is installed at the liquid outlet 130, and the bottom surface of the second closing portion 220 is used for being attached to the end surface of the liquid outlet pipe 150 so as to seal the liquid outlet 130.
Specifically, the outer diameter of the inlet pipe 140 is 6mm and the length thereof is 15mm. The outer diameter of the drain pipe 150 is 6mm, the portion located inside the housing 100 is 10mm long, and the portion located outside the housing 100 is 15mm long.
Specifically, the first locking portion 210 and the second locking portion 220 are each columnar. Specifically, the first stopper 210 has an outer diameter of 24mm and a thickness of 2mm. The second locking portion 220 may have a square shape, a triangular shape, or the like. The second closing part 220 may be lengthened or lengthened and changed into a cone shape, and is combined with the liquid outlet pipe 150 to realize multiple closing.
Referring to fig. 1, in the present embodiment, the air bag 300 is sleeved on the outer periphery of the second locking portion 220 and located between the outer wall of the second locking portion 220 and the inner wall of the first channel 120, and the air bag 300 is used to simultaneously abut against the outer wall of the second locking portion 220 and the inner wall of the first channel 120 when expanding.
Specifically, the balloon 300 is ring-shaped, and after the balloon 300 is inflated, the inner side surface of the balloon 300 is tightly attached to the outer surface of the second stopper 220, and the outer side surface of the balloon 300 is tightly attached to the inner wall of the first passage 120. The sealing effect is good. The airbag 300 may have a spherical shape, a square shape, a triangular shape, etc., and is engaged with the second stopper 220.
Specifically, the thickness of the balloon 300 is 0.5mm.
Referring to fig. 1, in the present embodiment, the stopper 200 further includes a pressure cap 400, the pressure cap 400 is disposed on the first stopper 210, and the pressure cap 400 is located between the liquid inlet 110 and the first stopper 210, the pressure cap 400 is in communication with the air bag 300, and the pressure cap 400 is used to be compressed when the pressure of the liquid inlet 110 is greater than the pressure of the liquid outlet 130, so as to expand the air bag 300.
The pressure-bearing cap 400 is in sealing communication with the balloon 300, the pressure-bearing cap 400 is compressed, the balloon 300 is inflated, the pressure-bearing cap 400 is restored, and the balloon 300 is retracted. The pressure-bearing cap 400 is compressed when the pressure of the liquid inlet 110 is greater than the pressure of the liquid outlet 130, and the pressure-bearing cap 400 gradually resumes expansion after the air pressure of the liquid inlet 110 is reduced.
Referring to fig. 1, in the present embodiment, the first blocking portion 210 is provided with a second channel 211, the second blocking portion 220 is provided with a third channel 221 and an air hole 222 communicating the third channel 221 and the air bag 300, and the third channel 221 is communicated with the second channel 211.
The pressure cap 400 is communicated with the air bag 300 through the second channel 211, the third channel 221 and the air hole 222 which are communicated in sequence. Specifically, the number of the air holes 222 is plural, the plurality of air holes 222 are disposed on the second locking portion 220 at intervals, and the airbag 300 surrounds the outer circumference of the plurality of air holes 222.
Referring to fig. 1, in the present embodiment, the pressure cap 400, the first locking portion 210 and the second locking portion 220 are sequentially connected along the extending direction of the first channel 120, and the second channel 211 and the third channel 221 are disposed along the extending direction of the first channel 120.
Referring to the relative positions of fig. 1, the first, second and third passages 120, 211 and 221 are all disposed in the vertical direction, and the pressure cap 400, the first and second stoppers 210 and 220 are also disposed in sequence in the vertical direction. The linear distance is the shortest, and the sensitivity of the volume change between the pressure-receiving cap 400 and the air bag 300 is improved.
Referring to fig. 1, in the present embodiment, the pressure cap 400 has a cambered surface protruding toward the liquid inlet 110. With this, it is advantageous to be more easily compressed when an external force is applied. Specifically, the pressure cap 400 has a semicircular shape, the maximum diameter of the pressure cap 400 is 20mm, and the height is 1mm.
Referring to fig. 1, in the present embodiment, the hysteroscope bolt preventer 10 further includes a limiting grating 500 disposed between the liquid inlet 110 and the first blocking portion 210, the limiting grating 500 being used for preventing the second blocking portion 220 from exiting the first channel 120. When the stopper 200 rises to the highest position, it abuts against the limiting grating 500, and is limited by the limiting grating 500, so that the stopper cannot rise continuously, and the second stopper 220 is always located in the first channel 120, so that the stopper 200 can be always attached to the first channel 120 after the buoyancy is reduced or eliminated.
The shape of the limiting grating 500 can be changed into various patterns with holes or holes, such as a sieve shape, a net shape, an irregular shape, etc. Specifically, the thickness of the stopper fence 500 is 1mm.
The embodiment of the invention also provides a hysteroscope infusion set, which comprises an infusion tube and a hysteroscope anti-thrombus device 10, wherein the hysteroscope anti-thrombus device 10 is arranged on the infusion tube. The liquid inlet pipe 140 and the liquid outlet pipe 150 are respectively communicated with the liquid delivery pipes.
The hysteroscope bolt preventer 10 may be made of plastic material, rubber material, stainless steel or other metal material.
The above dimensions are merely illustrative of the dimensional ratios in fig. 1.
The hysteroscope thrombus preventing device 10 provided in this embodiment has at least the following advantages:
The stopper 200 and balloon 300, in turn, create a closure and can be sequentially released, and reperfusion becomes rapid and repeatable, allowing for pre-operative real-time safety detection. In the process of delivering the uterine expansion liquid, when the liquid in the filling bottle is emptied, the liquid in the shell 100 is reduced, so that the buoyancy of the closing plug 200 is smaller than the gravity, the closing plug 200 descends to seal the first channel 120, the filling bottle can continuously deliver the gas into the shell 100 after the liquid is emptied, so that the gas pressure of the liquid inlet 110 is larger than the gas pressure of the liquid outlet 130, the air bag 300 expands to seal the first channel 120, and double sealing is realized. After changing the fill bottle, the bladder 300 is retracted and then the stopper 200 opens the first passageway 120.
The two-stage closing structure, the closing plug 200 and the air bag 300 are not closed at the same time, but are closed in sequence, so that the bearing pressure can be reduced, double insurance can be realized, and the operation safety is ensured. The blocking is released in a grading way, the lower cavity of the anti-thrombus device can still keep a airless state in the process of replacing uterine fluid, the operation is simplified, the efficiency is improved, and the safety is promoted.
The stopper 200 includes a first stopper 210 and a second stopper 220, and the airbag 300 is fitted around the second stopper 220, and the stopper 200 and the airbag 300 are simple in structure and remarkable in effect.
A stopper 500 is provided in the housing 100 to prevent the second stopper 220 from exiting the first passage 120, thereby ensuring that the stopper 200 always moves up and down along the extending direction of the first passage 120 and ensuring that the stopper 200 is returned to its original position.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A hysteroscope thrombus prevention device, comprising:
the shell is internally provided with a liquid inlet, a first channel and a liquid outlet which are communicated in sequence;
A stopper slidably disposed within the housing for being separated from the first passage by buoyancy to open the first passage or for being engaged with the first passage after the buoyancy has disappeared to seal the first passage; the air bag is arranged on the closing plug and is used for expanding when the pressure of the liquid inlet is greater than that of the liquid outlet so as to seal the first channel;
a boss is arranged on the inner wall of the shell, and the first channel is defined by the boss;
The closing plug comprises a first closing part and a second closing part which are connected in sequence, the first closing part is positioned between the liquid inlet and the boss, and the second closing part is slidably arranged in the first channel;
the first blocking part is used for being separated from the boss under the action of buoyancy so as to open the first channel, or is used for being attached to the end part of the boss after the buoyancy is lost so as to seal the first channel;
The air bag is sleeved on the periphery of the second closing part and is positioned between the outer wall of the second closing part and the inner wall of the first channel, and the air bag is used for simultaneously clinging to the outer wall of the second closing part and the inner wall of the first channel when expanding;
The closing plug further comprises a pressure-bearing cap, the pressure-bearing cap is arranged on the first closing part and positioned between the liquid inlet and the first closing part, the pressure-bearing cap is communicated with the air bag, and the pressure-bearing cap is used for being compressed when the pressure of the liquid inlet is greater than that of the liquid outlet so as to expand the air bag;
The hysteroscope bolt preventer further comprises a limiting grid arranged between the liquid inlet and the first closing part, and the limiting grid is used for preventing the second closing part from exiting the first channel.
2. The hysteroscope thrombus prevention device of claim 1 wherein:
when the first closing part is attached to the end of the boss, the second closing part blocks the liquid outlet.
3. The hysteroscope thrombus prevention device of claim 1 wherein:
the first closing and stopping part is provided with a second channel, the second closing and stopping part is provided with a third channel and an air hole which is communicated with the third channel and the air bag, and the third channel is communicated with the second channel.
4. A hysteroscope thrombus prevention device as in claim 3 wherein:
The pressure-bearing cap, the first closing and stopping part and the second closing and stopping part are sequentially connected along the extending direction of the first channel, and the second channel and the third channel are arranged along the extending direction of the first channel.
5. The hysteroscope thrombus preventing device according to claim 4, wherein:
the pressure-bearing cap is provided with an arc surface protruding towards the liquid inlet.
6. A hysteroscope transfusion system, which is characterized in that:
the hysteroscope infusion set comprises an infusion tube and the hysteroscope anti-thrombus device as claimed in any one of claims 1 to 5, wherein the hysteroscope anti-thrombus device is arranged on the infusion tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750597.7A CN111729183B (en) | 2020-07-30 | 2020-07-30 | Hysteroscopic thrombus prevention device and hysteroscopic infusion device |
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| CN202010750597.7A CN111729183B (en) | 2020-07-30 | 2020-07-30 | Hysteroscopic thrombus prevention device and hysteroscopic infusion device |
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| CN111729183A CN111729183A (en) | 2020-10-02 |
| CN111729183B true CN111729183B (en) | 2024-12-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212547939U (en) * | 2020-07-30 | 2021-02-19 | 上海德馨医院有限公司 | Hysteroscope thrombus-preventing device and hysteroscope infusion apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4318400A (en) * | 1980-01-18 | 1982-03-09 | Alza Corporation | Medical infusor |
| KR20010075031A (en) * | 1999-07-10 | 2001-08-09 | 잰 에스. 리드 | Volumetric infusion pump with servo valve control |
| CN200984368Y (en) * | 2006-12-22 | 2007-12-05 | 魏颖德 | Protection valve type transfusion device |
| KR20180069453A (en) * | 2016-12-15 | 2018-06-25 | 계명대학교 산학협력단 | A air inflow prevention module and its manufacturing method for sap set for prevent air embolism |
| CN210933186U (en) * | 2019-05-10 | 2020-07-07 | 华中科技大学同济医学院附属协和医院 | A one-time precision automatic liquid stop infusion set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212547939U (en) * | 2020-07-30 | 2021-02-19 | 上海德馨医院有限公司 | Hysteroscope thrombus-preventing device and hysteroscope infusion apparatus |
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