CN113974600A - 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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- CN113974600A CN113974600A CN202111165738.XA CN202111165738A CN113974600A CN 113974600 A CN113974600 A CN 113974600A CN 202111165738 A CN202111165738 A CN 202111165738A CN 113974600 A CN113974600 A CN 113974600A
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- pressure
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- liquid supply
- hysteroscope
- uterine cavity
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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—Detecting, measuring or recording 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, e.g. tourniquets
- 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, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B2017/4216—Operations on uterus, e.g. endometrium
Abstract
A hysteroscope expands palace and uses and supplies liquid installation, wherein the hysteroscope includes light source device, supplies liquid installation, expands palace liquid bag, hydrops bag and supplies liquid pipeline, supply liquid pipeline set up in the hysteroscope, it communicates with supplying liquid installation, used for supplying liquid to the palace intracavity, the said supply liquid installation includes high-pressure connector, internal pipeline, decompression mechanism, first solenoid valve, first to fourth pressure sensor, supplies liquid connector, control division and operation panel, one end of the high-pressure hose is connected to the high-pressure connector of the liquid installation freely, its another end is connected to the liquid bag of expanding of the palace liquid supply source, set up the internal pipeline in supplying liquid installation, used for infusing and supplying liquid to the palace intracavity, its one end is connected to the high-pressure connector, another end is connected with supplying the liquid connector, supplies the liquid connector to connect with supplying the liquid hose, supplies the liquid hose to connect to the supply 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 not to affect the sight, uterine cavity swelling liquid is injected into the uterine cavity to swell the uterine cavity and wash the operation site, and blood in the uterine cavity is discharged. The traditional liquid inlet and outlet metering method is characterized in that proper uterine expansion pressure and perfusion medium are needed in hysteroscopy operation, in order to ensure the balance of the pressure of liquid in a body, the liquid entering and exiting into the uterine cavity needs to be metered, the metering is completed by utilizing a container with scales, the metering method of the container is simple, but the scales of the container need to be paid attention at any time, and whether the balance is achieved according to the liquid inlet and outlet amount, so that the defects of inaccurate metering, troublesome data reading and calculation 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 inner 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 electromagnetic 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 electromagnetic 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 electromagnetic valve. A bypass pipe bypassing a part (throttle) of the internal pipe is connected to a downstream side of the first electromagnetic valve, and a second electromagnetic valve is disposed 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 in the middle of the bypass pipe.
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 a 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 the hysteroscope.
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 electromagnetic valve 120 is an opening/closing mechanism that can connect/disconnect the internal duct 13, and is provided on the downstream side of the decompression mechanism 31 in the internal duct 13. The first solenoid 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 is opened/closed 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 the flow rate of the liquid automatically supplied into the uterine cavity through the automatic liquid supply hose 38 to be controlled 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 through the standby sensor, and 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 for displaying 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 apparatus 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 prohibition means for prohibiting 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 supply button is pressed (step S16). At this time, the liquid supply button is on standby until it is pressed, and if it 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 constant time, and delivers a constant amount of liquid into the uterine cavity through the liquid supply hose 38. 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 controller 34 obtains the intra-uterine pressure in the same manner as in 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 distention liquid cannot be supplied into the uterine cavity (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 (6)
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, and the pressure reducing mechanism (31) and the first electromagnetic valve (120) are sequentially arranged in the inner pipeline (13).
2. The liquid supply apparatus for hysteroscope uterine distension according to claim 1, wherein the pressure reducing mechanism (31) is composed of two pressure reducing valves (16, 18) 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 provided at the same time, the first pressure sensor (20) detects the pressure of the liquid supplied from the uterine distension liquid bag and is connected to the internal pipe (13) between the high-pressure connector (12) and the pressure reducing mechanism (31); the second pressure sensor (21) detects the pressure of the liquid decompressed by the decompression mechanism and is connected with an internal pipeline (13) between the decompression mechanism (31) and the first electromagnetic valve (120), the third pressure sensor (22) and the fourth pressure sensor (23) 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 (34).
3. The hysteroscope uterine distension liquid supply apparatus according to claim 2, wherein the first solenoid valve (120) is an opening/closing mechanism capable of connecting/disconnecting the internal tube (13), and is provided on the downstream side of the pressure reducing mechanism (31) in the internal tube (13), and the first solenoid valve (120) is opened/closed based on a control signal output from the control unit (34), and the internal tube (13) is connected/disconnected by the opening/closing operation of the first solenoid valve (120).
4. A liquid supply apparatus for hysteroscope uterine distension according to claim 3, wherein a bypass line (40) bypassing a part of the internal line (13) is connected to a downstream side of the first electromagnetic valve (120), and a second electromagnetic valve (122) is provided as a flow rate adjusting mechanism for adjusting a flow rate of the liquid automatically supplied into the uterine cavity through the liquid supply hose (38) in the middle of the bypass line (40).
5. The hysteroscope uterus expanding liquid supply device according to claim 4, wherein the operation panel (35) is disposed on the front surface of the frame body constituting the liquid supply device (3), the operation panel (35) is provided with a power switch (351), a display part (352) and an operation part (353), the above parts are connected to the control part (34), and the operation part (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.
6. A hysteroscope uterus expanding liquid supply monitoring method based on the hysteroscope uterus expanding liquid supply device of claims 1-5, which is characterized by comprising the following steps:
s10, preprocessing, wherein the control part (34) enables the first electromagnetic valve (120) to be in a conducting state and enables the internal pipeline (13) to be in a communicating state;
s12, the control part (34) acquires the pressure in the uterine cavity, the pressure in the uterine cavity is detected by a third pressure sensor (22) or a fourth pressure sensor (23) serving as pressure detection means, and the detection result is output to the control part (34);
s14, the control part (34) judges whether the pressure in the uterine cavity is below the set pressure threshold, when the pressure in the uterine cavity exceeds the threshold, the control part (34) functions as a prohibition mechanism for prohibiting the supply of the liquid into the uterine cavity, the processing from step S16 to step S22 is skipped, the warning display is performed on the pressure warning display part of the liquid supply device (3), and the process goes to step S24;
s16, when the pressure in the uterine cavity is below the set pressure, the control part (34) judges whether the liquid supply button is pressed, the liquid supply button is in a standby state before being pressed, and the control part enters the following step S18 when the liquid supply button is pressed;
s18, when the pressure in the uterine cavity is lower than the set pressure, the control part (34) makes the first electromagnetic valve (120) and the second electromagnetic valve (122) in a conducting state for a constant time, so as to convey a constant amount of liquid into the uterine cavity through the liquid supply hose (38);
s20, the control unit (34) acquires the pressure in the uterine cavity in the same manner as in the aforementioned step S12, and detects the pressure in the uterine cavity by the third pressure sensor (22) or the fourth pressure sensor (23) as the pressure detection means;
s22, the control part (34) judges whether the liquid supply mode end button is pressed, if the operation button is not pressed, the control part returns to the step S14 and carries out the same processing;
s24, when the liquid supply mode ending button is pressed, the post-processing control part (34) enables the first electromagnetic valve (120) to be in a closed state, thereby the internal pipeline (13) is in a cut-off state, and a state (non-supply state) that the uterus expanding liquid can not be supplied to the uterine cavity is achieved, and the liquid supply mode for diagnosis is ended.
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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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115429208A (en) * | 2022-11-03 | 2022-12-06 | 杭州思康新医疗科技有限公司 | Hysteroscope |
| CN116269688A (en) * | 2023-05-18 | 2023-06-23 | 新光维医疗科技(苏州)股份有限公司 | Data processing device, method and operation system for uterine cavity operation |
| CN116269296A (en) * | 2023-05-18 | 2023-06-23 | 新光维医疗科技(苏州)股份有限公司 | Uterine cavity pressure control method, device and operation system |
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| CN115429208A (en) * | 2022-11-03 | 2022-12-06 | 杭州思康新医疗科技有限公司 | Hysteroscope |
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