CN113974600B - Liquid supply device for hysteroscope uterus expansion and monitoring method - Google Patents
Liquid supply device for hysteroscope uterus expansion and monitoring method Download PDFInfo
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- CN113974600B CN113974600B CN202111165738.XA CN202111165738A CN113974600B CN 113974600 B CN113974600 B CN 113974600B CN 202111165738 A CN202111165738 A CN 202111165738A CN 113974600 B CN113974600 B CN 113974600B
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- 239000007788 liquid Substances 0.000 title claims abstract description 153
- 210000004291 uterus Anatomy 0.000 title claims description 10
- 238000000034 method Methods 0.000 title description 10
- 238000012544 monitoring process Methods 0.000 title description 3
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 230000006837 decompression Effects 0.000 claims abstract description 11
- 241000521257 Hydrops Species 0.000 claims abstract description 3
- 206010030113 Oedema Diseases 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 13
- 230000008520 organization Effects 0.000 claims 1
- 206010000060 Abdominal distension Diseases 0.000 description 9
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Measuring fluid pressure within the body other than blood pressure, e.g. cerebral pressure ; Measuring pressure in body tissues or organs
- A61B5/033—Uterine pressure
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- 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
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- 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
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Abstract
A hysteroscope expands palace and uses and supplies the liquid device, wherein the hysteroscope includes light source device, supplies the liquid device, expands palace liquid bag, hydrops bag and supplies the liquid pipeline, supply the liquid pipeline to set up in the hysteroscope, it communicates with supplying the liquid device, used for supplying liquid to the uterine cavity, the said supply liquid device includes high-pressure connector, inner pipe, decompression mechanism, first solenoid valve, first to fourth pressure sensor, supplies liquid connector, control division and operating panel, one end of the high-pressure hose is connected to the high-pressure connector which supplies the liquid device freely, its another end is connected to expanding the palace liquid bag as expanding the liquid supply source, the inner pipe set up in supplying the liquid device, used for infusing and supplying liquid to the uterine cavity, its one end is connected to the high-pressure connector, another end is connected with supplying the liquid connector, supply the liquid connector with supplying the liquid hose connection, supply the liquid hose connection to the liquid pipeline set up in the hysteroscope, the pressure reducing mechanism and the first electromagnetic valve are sequentially arranged in the inner pipeline.
Description
Technical Field
The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to a hysteroscope liquid supply device and a control method.
Background
The hysteroscope is a new and minimally invasive gynecological diagnosis and treatment technology, and is a fiber light source endoscope for examination and treatment in the uterine cavity, which comprises the hysteroscope, an energy system, a light source system, a perfusion system and an imaging system.
As is well known, in hysteroscopy, in order to facilitate the operation and avoid affecting the sight, uterine distention liquid is injected into the uterine cavity to distend the uterine cavity and wash the operation part, and blood in the uterine cavity is discharged. In order to ensure the balance of the pressure of liquid in a body, the liquid entering and exiting the uterine cavity needs to be measured, the conventional liquid entering and exiting measuring method utilizes a container with scales to complete the measurement, although the method for measuring the container is simpler, the scales of the container need to be paid attention to constantly, whether the balance is achieved according to the liquid entering and exiting amount is calculated, and therefore the defects that the measurement is inaccurate, the data reading and the calculation are troublesome and the like exist.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a liquid supply device for hysteroscope uterus expansion and a control method, which can intelligently control the pressure of uterus expansion liquid so as to solve the problems.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a hysteroscope expands and uses the liquid feed mechanism in the palace, wherein the hysteroscope includes light source device, liquid feed mechanism, expands the liquid bag of palace, hydrops bag and liquid feed pipe, the liquid feed pipe is set up in the hysteroscope, it communicates with liquid feed mechanism, used for supplying liquid to the palace intracavity, characterized by that the said liquid feed mechanism includes high-pressure connector, internal pipeline, decompression mechanism, first electromagnetic valve, first to fourth pressure sensor, liquid feed connector, control division and operating panel, one end of the high-pressure hose is connected to the high-pressure connector of the liquid feed mechanism in a loading and unloading way, its another end is connected to the liquid bag of palace of expanding as the liquid supply source, the internal pipeline set up in the liquid feed mechanism, used for supplying liquid to the palace intracavity, one end is connected to the high-pressure connector, another end is connected to the liquid feed connector, the liquid feed connector is connected with liquid feed hose, the liquid feed hose is connected to the liquid feed pipe set up in the hysteroscope, the pressure reducing mechanism and the first electromagnetic valve are sequentially arranged in the internal pipeline. The pressure reducing mechanism is composed of two pressure reducing valves which are configured in series, and is simultaneously provided with a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor, wherein the first pressure sensor detects the pressure of liquid supplied by the uterus expanding liquid bag and is connected with an internal pipeline between the high-pressure connector and the pressure reducing mechanism; the second pressure sensor is used for detecting the pressure of the liquid decompressed by the decompression mechanism and is connected with an internal pipeline between the decompression mechanism and the first electromagnetic valve, the third pressure sensor and the fourth pressure sensor are used for detecting the pressure in the uterine cavity and are arranged at the front end of the hysteroscope, and the detection result of the pressure sensors is output to the control part. Further, the first solenoid valve is an opening/closing mechanism capable of connecting/disconnecting the internal duct, and is provided on a downstream side of the decompression mechanism in the internal duct, and the first solenoid valve performs an opening/closing operation based on a control signal output from the control unit, and connects/disconnects the internal duct by the opening/closing operation of the first solenoid valve. A bypass line bypassing a part (a throttle) of the internal line is connected to a downstream side of the first solenoid valve, and a second solenoid valve is disposed in the bypass line as a flow rate adjusting mechanism for adjusting a flow rate of the liquid automatically fed into the uterine cavity through the liquid feed hose.
Compared with the prior art, the invention has the advantages that:
the pressure in the uterine cavity is measured in real time through the pressure detection mechanism, and the flow regulation is controlled in real time according to the pressure result, so that the liquid balance in the uterine cavity can be more accurately ensured; provides proper uterus expansion pressure for the hysteroscope operation.
Drawings
FIG. 1 is a block diagram showing a configuration of a liquid supply apparatus.
FIG. 2 is a flow chart of a method for monitoring a hysteroscope operation fluid supply device provided by the invention.
Wherein: 3 a liquid supply device; 31 a pressure reducing mechanism; 120. 122 first and second solenoid valves; 20. 21, 22, 23 first to fourth pressure sensors; 34 a control unit; 35 an operation panel; 11 a high pressure hose; 12 a high voltage connector; 110 uterus expanding liquid bag; 13 an inner conduit; 31 a pressure reducing mechanism; 16. 18 a pressure reducing valve; 36 a liquid supply connector; 38 a liquid supply hose; 40 bypass pipes; 351 power switch; 352 a display unit; 353 an operation part.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A hysteroscope system comprises a hysteroscope, a light source device, a liquid supply device, a liquid accumulation bag and a liquid supply pipeline, wherein the liquid supply pipeline is arranged in the hysteroscope, is communicated with the liquid supply device and is used for supplying liquid into a uterine cavity.
Fig. 1 is a block diagram showing the structure of the liquid supply device 3. As shown in fig. 1, the liquid supply apparatus 3 includes a pressure reducing mechanism 31, first and second solenoid valves 120 and 122, first to fourth pressure sensors 20, 21, 22 and 23, a control unit 34, and an operation panel 35. One end of the high-pressure hose 11 is detachably connected to the high-pressure connector 12 of the liquid supply device 3, and the other end thereof is connected to an uterine distention liquid bag 110 as a uterine distention liquid supply source. That is, the liquid supply device 3 communicates with the uterine distention liquid bag 110 via the high-pressure hose 11. Thereby, the liquid from the uterine distention liquid bag 110 is supplied to the high-pressure connector 12 via the high-pressure hose 11. One end of an internal pipe 13 provided inside the liquid supply device 3 is connected to the high-pressure connector 12. A decompression mechanism 31 for decompressing the liquid supplied from the uterine-distention liquid bag 110 to a predetermined pressure is disposed in the inner duct 13. The pressure reducing mechanism 31 is a pressure reducing mechanism that reduces the pressure of the liquid supplied from the uterine distention liquid bag 110 to an appropriate pressure stepwise, and is composed of two pressure reducing valves 16, 18 arranged in series.
The first pressure sensor 20 is a pressure detection mechanism that detects the pressure of the liquid supplied from the uterine distention liquid bag 110, and is connected to the internal pipe 13 between the high-pressure connector 12 and the pressure reduction mechanism 31. The detection result of the first pressure sensor 20 is output to the control unit 34. The second pressure sensor 21 is a pressure detection mechanism that detects the pressure of the liquid decompressed by the decompression mechanism 31, and is connected to the internal pipe 13 between the decompression mechanism 31 and the first electromagnetic valve 120. The detection result of the second pressure sensor 21 is output to the control unit 34.
The first solenoid valve 120 is an opening/closing mechanism capable of connecting/disconnecting the internal pipe 13, and is provided on the downstream side of the pressure reducing mechanism 31 in the internal pipe 13. The first electromagnetic valve 120 is opened and closed based on a control signal output from the control unit 34. The opening and closing operation of the first solenoid valve 120 connects and cuts off the internal pipe 13, thereby performing the supply and non-supply of the liquid in a unified manner.
The inner pipe 13 is used for supplying liquid to the uterine cavity, the other end of the inner pipe is connected with a liquid supply connector 36, the liquid supply connector 36 is connected with a liquid supply hose 38, and the liquid supply hose 38 is connected to a liquid supply pipe arranged in the hysteroscope. A bypass line 40 that bypasses a part (a throttle portion) of the inner line 13 is connected to a downstream side of the first solenoid valve 120. A second electromagnetic valve 122 is disposed in the middle of the bypass line 40 as a flow rate adjusting mechanism for adjusting the flow rate of the liquid automatically supplied into the uterine cavity through the liquid supply hose 38. The second solenoid valve 122 is an opening/closing mechanism capable of connecting/disconnecting the bypass line 40, and performs an opening/closing operation based on a control signal output from the control unit 34.
Preferably, the second electromagnetic valve 122 is configured by a flow rate control valve (electromagnetic proportional valve) capable of steplessly controlling the flow rate in proportion to the control signal (current value). This enables to control the flow rate of the liquid automatically supplied into the uterine cavity through the automatic liquid supply hose 38 with high accuracy.
The third pressure sensor 22 and the fourth pressure sensor 23 are pressure detection means for detecting the pressure in the uterine cavity, and are connected to the front end of the hysteroscope. The detection results of the pressure sensors 22 and 23 are output to the control unit 34. In the present embodiment, one of the third pressure sensor 22 and the fourth pressure sensor 23 is used as a main sensor, and the other is used as a backup sensor. Therefore, even if the main sensor fails, the pressure in the uterine cavity can be detected by the standby sensor, so that the reliability of pressure detection in the uterine cavity is improved.
The operation panel (operation panel) 35 is disposed on the front surface of the housing constituting the liquid supply apparatus 3. The operation panel 35 is provided with a power switch 351, a display unit 352, and an operation unit 353, which are connected to the control unit 34. The display unit 352 includes: a residual amount display part for displaying the residual amount of the liquid in the uterus swelling liquid bag 110; a liquid warning display unit that displays a warning when the remaining amount of liquid is equal to or less than a predetermined level; a set pressure display part which displays the set pressure in the uterine cavity; a pressure display part which displays the current pressure in the uterine cavity; and a pressure warning display unit that displays a warning when the pressure in the hysteroscope exceeds a set pressure. The control unit 34 performs overall control of the liquid supply device 3, and is configured to include a CPU, a memory (both not shown), and the like. The memory stores a control program for operating the liquid supply device 3 and various setting information (for example, a set pressure and a flow rate in the uterine cavity set by the pressure setting unit). The operation unit 353 includes: a pressure setting unit for setting a set pressure in the uterine cavity; a liquid supply button (constant volume liquid supply button) as an operating mechanism for instructing to perform a constant volume liquid supply into the uterine cavity in the liquid supply mode; a liquid supply mode end button for indicating an end of the liquid supply mode. When each unit of the operation unit 353 is operated, an operation signal corresponding to the operation is output to the control unit 34.
Fig. 2 is a flowchart showing an example of processing performed in the liquid supply mode for hysteroscopy.
First, as a preprocessing, the control unit 34 brings the first solenoid valve 120 into a conduction state and brings the internal pipe 13 into a communication state (step S10).
Next, the control unit 34 obtains the pressure in the uterine cavity (step S12). The pressure in the uterine cavity is detected by the third pressure sensor 22 or the fourth pressure sensor 23 as the pressure detection means, and the detection result is output to the control unit 34. At this time, the actual pressure in the uterine cavity obtained by the control unit 34 is displayed on the pressure display unit. In addition, the set pressure in the uterine cavity set by the pressure setting unit is displayed on the set pressure display unit.
Next, the control unit 34 determines whether or not the pressure in the uterine cavity is equal to or lower than a set pressure (threshold) (step S14). When the pressure in the uterine cavity exceeds the threshold value, the controller 34 functions as a prohibition unit that prohibits the supply of the liquid into the uterine cavity, skips the processing from step S16 to step S22, displays a warning on the pressure warning display unit of the liquid supply device 3 (step S26), and proceeds to step S24.
On the other hand, when the pressure in the uterine cavity is equal to or lower than the set pressure, the control unit 34 determines whether or not the liquid feed button is pressed (step S16). At this time, the liquid supply button is in a standby state before being pressed, and when the liquid supply button is pressed, the process proceeds to subsequent step S18.
On the other hand, when the pressure in the uterine cavity is equal to or lower than the set pressure, the process proceeds to step S18, and the control unit 34 causes the first solenoid valve 120 and the second solenoid valve 122 to be in the on state for a predetermined time period, and causes the liquid supply hose 38 to supply a predetermined amount of liquid into the uterine cavity. In this case, the amount (volume) of the liquid to be supplied into the uterine cavity is preferably 10% or less (more preferably 5% or less) with respect to the internal volume of the uterine cavity. By setting the amount of liquid supplied in this manner, the pressure in the uterine cavity is increased by only 10% at the maximum even at a constant amount of liquid supply. Therefore, the pressure in the uterine cavity can be increased stepwise while the uterine cavity is kept in a constant low pressure state.
Next, the control unit 34 obtains the intra-uterine cavity pressure in the same manner as in the above-described step S12 (step S20). In this case, it is preferable that the pressure in the uterine cavity be detected by the third pressure sensor 22 or the fourth pressure sensor 23 as the pressure detection means after a predetermined time has elapsed from the liquid supply in step S18.
Next, the control unit 34 determines whether or not the liquid feed mode end button is pressed (step S22). If the operation button is not pressed, the process returns to step S14 and the same processing is performed.
On the other hand, when the liquid feed mode end button is pressed, the post-processing control unit 34 closes the first electromagnetic valve 120 (step S24). Thereby, the internal tube 13 is cut off, and the uterine cavity is not supplied with the uterine distention liquid (non-supply state), and the diagnostic liquid supply mode is ended.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (2)
1. A hysteroscope expands palace and uses the liquid feed mechanism, wherein the hysteroscope includes light source device, liquid feed mechanism, expands palace liquid bag, hydrops bag and liquid feed pipe, the liquid feed pipe is set up in the hysteroscope, it communicates with liquid feed mechanism, used for supplying liquid to the palace intracavity, characterized by that the said liquid feed mechanism includes high-pressure connector (12), internal pipe (13), depressurize organization (31), first electromagnetic valve (120), first to fourth pressure sensor (20, 21, 22, 23), liquid feed connector (36), control division (34) and operation panel (35), one end of the high-pressure hose (11) is connected to the high-pressure connector (12) of the liquid feed mechanism in a loading and unloading freely, its another end is connected to the liquid bag (110) of expanding the palace liquid supply source, set up the internal pipe (13) in the liquid feed mechanism, used for supplying liquid to the palace intracavity, its one end is connected to the high-pressure connector (12), the other end of the pressure reducing mechanism is connected with a liquid supply connector (36), the liquid supply connector (36) is connected with a liquid supply hose (38), the liquid supply hose (38) is connected with a liquid supply pipeline arranged in the hysteroscope, a pressure reducing mechanism (31) and a first electromagnetic valve (120) are sequentially arranged in an internal pipeline (13), wherein the pressure reducing mechanism (31) is composed of two pressure reducing valves (16 and 18) which are arranged in series, and a first pressure sensor (20), a second pressure sensor (21), a third pressure sensor (22) and a fourth pressure sensor (23) are simultaneously arranged, the first pressure sensor (20) detects the pressure of liquid supplied from the uterus expanding liquid bag and is connected with the internal pipeline (13) between the high-pressure connector (12) and the pressure reducing mechanism (31); a second pressure sensor (21) for detecting the pressure of the liquid decompressed by the decompression mechanism and connected to the internal duct (13) between the decompression mechanism (31) and the first solenoid valve (120), a third pressure sensor (22) and a fourth pressure sensor (23) for detecting the pressure in the uterine cavity and provided at the front end of the hysteroscope, the detection result of the pressure sensors being output to a control unit (34), wherein the first solenoid valve (120) is an opening/closing mechanism capable of opening/closing the internal duct (13) and provided on the internal duct (13) at a position downstream of the decompression mechanism (31), the first solenoid valve (120) performs an opening/closing operation based on a control signal output from the control unit (34), the internal duct (13) is connected/closed by the opening/closing operation of the first solenoid valve (120), and a bypass bypassing a part of the internal duct (13) is connected to a position downstream of the first solenoid valve (120) The duct (40) is provided with a second electromagnetic valve (122) as a flow rate adjusting mechanism for adjusting the flow rate of the liquid automatically conveyed into the uterine cavity through the liquid supply hose (38) in the middle of the bypass duct (40).
2. The hysteroscope uterus expanding liquid supply device according to claim 1, wherein an operation panel (35) is disposed on a front surface of a frame constituting the liquid supply device (3), a power switch (351), a display unit (352) and an operation unit (353) are provided on the operation panel (35), the above-mentioned parts are connected to the control unit (34), and the operation unit (353) comprises: a pressure setting unit for setting a set pressure in the uterine cavity; a liquid supply button as an operating mechanism for instructing to perform a constant amount of liquid supply into the uterine cavity in the liquid supply mode; a liquid supply mode end button for indicating an end of the liquid supply mode.
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| CN202111165738.XA CN113974600B (en) | 2021-09-30 | 2021-09-30 | Liquid supply device for hysteroscope uterus expansion and monitoring method |
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| CN202111165738.XA CN113974600B (en) | 2021-09-30 | 2021-09-30 | Liquid supply device for hysteroscope uterus expansion and monitoring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115273629A (en) * | 2022-08-03 | 2022-11-01 | 张�浩 | Uterine model cavity, uterine cavity simulator, uterine cavity simulation training system and application |
| CN115429208A (en) * | 2022-11-03 | 2022-12-06 | 杭州思康新医疗科技有限公司 | Hysteroscope |
| CN116269296B (en) * | 2023-05-18 | 2023-07-18 | 新光维医疗科技(苏州)股份有限公司 | Uterine cavity pressure control method, device and operation system |
| CN116269688B (en) * | 2023-05-18 | 2023-07-21 | 新光维医疗科技(苏州)股份有限公司 | Data processing device, method and operating system for uterine cavity surgery |
| CN119257584B (en) * | 2024-12-06 | 2025-04-22 | 上海宇度医学科技股份有限公司 | Intelligent hysteroscope liquid management system and fluctuation suppression method thereof |
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| US5586973A (en) * | 1991-04-22 | 1996-12-24 | C & D Biomedical S.A. | Method and device for controlled irrigation and suctioning of a liquid clarificant during endoscopic surgery |
| US5242390A (en) * | 1991-05-03 | 1993-09-07 | Goldrath Milton H | Endometrium coagulating surgical method for thermal destruction of the endometrium |
| CN2096381U (en) * | 1991-06-12 | 1992-02-19 | 盘锦市妇婴医院 | Electric press intumescence apparatus |
| CN2097653U (en) * | 1991-07-13 | 1992-03-04 | 上海市计划生育科学研究所 | Automatic control instrument for expanding uterus pressure |
| US5437629A (en) * | 1994-04-14 | 1995-08-01 | Bei Medical Systems | Fluid delivery system for hysteroscopic endometrial ablation |
| DE19510712C2 (en) * | 1995-03-15 | 2001-03-29 | Dmv Medizintechnik Gmbh | Method and device for introducing a gas |
| WO2002065930A1 (en) * | 2001-02-09 | 2002-08-29 | Tushar Navneetlal Shah | Apparatus for endometrial ablation |
| AU2006329596A1 (en) * | 2005-12-27 | 2007-07-05 | Stryker Gi Ltd. | Endoscopic apparatus provided with pressure relief arrangement |
| US9060760B2 (en) * | 2011-08-18 | 2015-06-23 | Hologic, Inc. | Tissue removal system |
| US10178942B2 (en) * | 2015-08-27 | 2019-01-15 | Boston Scientific Scimed, Inc. | Fluid management systems and methods |
| ES2929383T3 (en) * | 2016-02-19 | 2022-11-28 | Aegea Medical Inc | Methods and apparatus for determining the integrity of a body cavity |
| US11547815B2 (en) * | 2018-05-30 | 2023-01-10 | Covidien Lp | Systems and methods for measuring and controlling pressure within an internal body cavity |
| EP3989795A1 (en) * | 2019-06-27 | 2022-05-04 | Boston Scientific Scimed, Inc. | Detection of an endoscope to a fluid management system |
| CN110345991B (en) * | 2019-07-18 | 2020-08-25 | 清华大学 | Method for identifying misconnection of reclaimed water pipe network |
| CN211409297U (en) * | 2019-12-18 | 2020-09-04 | 郑州市中心医院 | Improved medical uterus expanding machine |
| CN111772691A (en) * | 2020-06-29 | 2020-10-16 | 上海交通大学 | A kind of hysteroscopic surgical distention monitoring instrument and using method thereof |
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