Intraoperative flushing apparatus, flushing fluid pressure detection device and assembly therefor

Abstract

The invention discloses an intraoperative flushing device and a flushing fluid pressure detection device and assembly used for the intraoperative flushing device, the flushing fluid pressure detection device comprises a flexible bag holding mechanism, the flexible bag holding mechanism comprises two pressure transmission plates and a torque sensor, and the main body of the torque sensor is made of a flexible material; the two pressure transmission plates are assembled to be fixedly connected with each other at the first side edges and allow the second side edges connected with each other through the torque sensor to do opening and closing movement in the direction perpendicular to the pressure transmission plates. A hollow space formed in the middle of the pressure transmission plates is suitable for receiving and holding a flexible bag used for containing flushing fluid, and the flexible bag makes surface contact with the inner side surfaces of the two pressure transmission plates. The main body of the torque sensor is connected to one of the two pressure transmission plates through a first loading end and a second loading end which are staggered from each other. According to the invention, the pressure intensity / pressure monitoring function of the medical flushing fluid is provided in a low-cost manner.

Description

Technical Field

[0001] The present disclosure relates to medical equipment, and more particularly to an intraoperative flushing device, a flushing fluid pressure detection device for the intraoperative flushing device, and a flushing fluid pressure detection assembly, which can be specifically used, for example, to flush solid particles and liquids generated during arthroscopy and other surgeries. Background Art

[0002] During many types of surgical procedures, it is very important to ensure that the doctor can clearly observe the patient's surgical site or cavity and the corresponding human tissue status. The doctor's ability to obtain a clear field of view helps to perform accurate and efficient surgical operations. In such surgical procedures, such as arthroscopic surgery, additional liquid or solid particles are generally produced at the surgical site or its vicinity. For this reason, intraoperative flushing equipment is generally required to flush the area to provide the doctor with a clear surgical field of view.

[0003] With the widespread use of surgical flushing equipment, the shortcomings of some existing surgical flushing equipment are increasingly revealed. For example, existing surgical flushing equipment has a simple pressurization function to achieve the desired or favorable flushing fluid flow rate and fluid pressure. However, the existing flushing equipment cannot detect the flushing fluid pressure / pressure during the surgical flushing operation, but may only rely on the adjustment of the fluid pressure by the pressurization link. In some cases, this may cause the flushing fluid flow rate and fluid pressure to fail to reach the desired flow rate and fluid pressure, resulting in poor flushing effect, and may also cause excessive fluid pressure to cause strong discomfort to the patient.

[0004] Therefore, there is an urgent need to provide a new flushing fluid pressure detection device for intraoperative flushing equipment to at least partially alleviate or solve the above-mentioned problems and defects of existing solutions. Summary of the invention

[0005] One purpose of the present disclosure is to overcome the above-mentioned defects of the existing intraoperative flushing equipment and to propose an intraoperative flushing equipment, a flushing liquid pressure detection device and a flushing liquid pressure detection assembly therefor.

[0006] The present disclosure provides an irrigation liquid pressure detection device for intraoperative irrigation equipment, characterized in that the irrigation liquid pressure detection device comprises a flexible bag holding mechanism, the flexible bag holding mechanism comprises two pressure transmission plates and a torque sensor whose main body is made of a flexible material;

[0007] wherein the two pressure transmission plates are assembled to be fixedly connected to each other at a first side edge and connected to each other via the torque sensor at a second side edge opposite to the first side edge, thereby allowing the second side edge to perform opening and closing movements in a direction perpendicular to the pressure transmission plate;

[0008] And wherein, at least one of the pressure transmission plates forms a flat plate-shaped recess in the middle main body portion of the inner side surfaces of the two plates adjacent to each other, so that a hollow space consisting of one or two flat plate-shaped recesses is formed between the two pressure transmission plates, and the hollow space is suitable for receiving and holding a flexible bag for containing flushing liquid, and makes the flexible bag and the inner side surfaces of the two pressure transmission plates have surface contact, and the flexible bag has a fluid inlet and outlet for the flushing liquid to flow in and out;

[0009] The main body of the torque sensor is connected to one of the two pressure transmission plates via a first loading end and a second loading end that are staggered from each other, and the torque sensor is configured to detect torque loaded via the first loading end and the second loading end.

[0010] The flushing liquid pressure detection device provided by the present disclosure uses two pressure transmission plates to form a thin plate-shaped hollow space to accommodate a flexible liquid bag. The flushing liquid flowing into and out of the flexible bag for flushing will cause the flexible bag to bulge slightly, so as long as there is a certain flow rate, the surface of the flexible bag in the hollow space will maintain a relatively stable surface contact with the inner surface of the pressure transmission plate. Therefore, as the pressure transmission plate and the surface of the flexible bag are in surface contact, the fluid pressure of the flushing liquid in the flexible liquid bag is converted into the pressure received by the pressure transmission plate, and this pressure prompts the two pressure transmission plates to perform an opening and closing movement at the second side edge (the amplitude of which can be very small), and the flexible body of the torque sensor receives the torque loaded via the first loading end and the second loading end along with this opening and closing movement, and measures this torque. In other words, the flushing fluid pressure detection device provided by the present disclosure can indirectly detect the magnitude / change in fluid pressure of the fluid flowing in the flexible bag in the above manner, and there is no sensing device or detection device that needs to be arranged in association with the flexible bag as a consumable or arranged in the flexible bag. Therefore, not only can the detection accuracy and real-time performance meet the application scenarios of medical flushing fluid, but the consumable cost is also low and easy to use.

[0011] According to some embodiments of the present disclosure, a strain gauge accommodating cavity with strain gauges arranged therein is provided in the middle of the main body of the torque sensor, so that deformation wall portions are formed on both lateral sides of the strain gauge accommodating cavity, each of which is close to one of the pressure transmission plates.

[0012] According to some embodiments of the present disclosure, the torque sensor is configured to measure the torque loaded via the first loading end and the second loading end through the strain gauge and indirectly measure the change in fluid pressure in the flexible bag received in the hollow space according to the torque.

[0013] According to some embodiments of the present disclosure, the strain gauge accommodating cavity is a hollow through hole, and the hollow through hole is in the shape of two circles connected to each other, or the hollow through hole is in the shape of a rounded rectangle, an ellipse, or an oblong.

[0014] According to some embodiments of the present disclosure, symmetrical deformation wall portions are formed on both lateral sides of the strain gauge accommodating cavity, each of the deformation wall portions has a thin wall section whose thickness varies along the longitudinal direction, and the middle portion of the thin wall section has a transition section with increased thickness.

[0015] As described above, the pressure transmitted by the flexible bag through direct surface contact with the pressure transmission plate causes the pressure transmission plate to slightly separate on one side. At this time, the first loading end and the second loading end will apply (shear) torque to the main body of the torque sensor, and the thin-walled parts (also called deformation columns) on both sides of the strain gauge accommodating cavity that are more easily deformed will deform accordingly and be quantitatively detected by means of the response of the strain gauge. This thin-walled design with a transition section with increased thickness in the middle part ensures that the main body of the torque sensor can have relatively high reliability and a long service life in long-term repeated use while providing sufficient measurement accuracy by means of the detection of the strain gauge.

[0016] According to some embodiments of the present disclosure, the flushing liquid pressure detection device further includes:

[0017] A heating element, the heating element being attached to the outer surface of the pressure transmission plate, wherein the pressure transmission plate is made of a heat-conducting material;

[0018] a temperature sensor fixedly mounted at the flat plate-shaped recess of one of the pressure transmission plates;

[0019] And wherein, the two pressure transfer plates have the same rectangular shape, and the two flat plate-type recesses of the two plates together constitute the hollow space.

[0020] According to some embodiments of the present disclosure, the pressure transmission plate has a gate-shaped reinforcement frame along the periphery of the rectangular shape, and the gate-shaped reinforcement frame is raised relative to the middle main body portion of the pressure transmission plate on both the inner side and the outer side;

[0021] And wherein, the flushing liquid pressure detection device also includes:

[0022] The port connector is rectangular and has a long and narrow opening, and the four corners of the port connector are respectively connected or engaged with the frame ends of the gate-shaped reinforced frames of the two pressure transmission plates, so that the long and narrow opening is connected to the hollow space.

[0023] The flushing liquid pressure detection device according to the above embodiment of the present disclosure also has the function of heating the flushing liquid, which utilizes the relatively stable surface contact maintained between the surface of the flexible bag in the hollow space and the inner surface of the pressure transmission plate under certain flow conditions, and heats the flushing liquid in the flexible bag by means of such surface contact between the pressure transmission plate and the surface of the flexible bag. Such a heating method and the real-time monitoring provided by the appropriately arranged temperature sensor enable the flushing liquid to be used to be heated to the desired temperature relatively quickly in an environment similar to a small or micro constant temperature chamber, wherein the pressure transmission plate can heat the flushing liquid in the flexible bag at a relatively low temperature (i.e., the temperature difference from the initial temperature of the flushing liquid is small) in a relatively short time and maintain it at the target temperature, without heating the flushing liquid to an overheated state.

[0024] According to some embodiments of the present disclosure, two special-shaped orifices are provided in the slit opening, the maximum width of the special-shaped orifices is greater than the width of the slit opening other than the special-shaped orifices, and the slit opening is configured to receive a liquid inlet connector and a liquid outlet connector of the flexible bag forming the fluid inlet and outlet.

[0025] Therefore, the two special-shaped orifices are designed to provide a certain fixing or limiting effect on the two fluid connectors, and in turn also play a certain fixing or limiting effect on the flexible bag, thereby ensuring a higher reliability of the flushing liquid pressure detection device in the operating room environment.

[0026] According to some embodiments of the present disclosure, the heating element is an electric heating element, the door-shaped reinforcement frame is formed with notches at the same positions on the inner and outer sides, wherein the heating element is a thermoelectric cooling sheet based on the Peltier effect, and the pressure transmission plate is made of aluminum or aluminum alloy material;

[0027] And wherein the thermoelectric cooling sheet is centrally attached to the outer surface of the pressure transmission plate, and the total area of ​​the thermoelectric cooling sheet is not less than 0.2 times the area of ​​the flat plate-shaped recess.

[0028] According to some embodiments of the present disclosure, the thickness of the middle main body portion of the pressure transfer plate is in the range of 2 mm to 6 mm, the thickness of the hollow space formed by one or two of the flat-plate shaped recesses is in the range of 3 mm to 10 mm, and the length and width of the hollow space in a direction perpendicular to the thickness are not less than 5 times the thickness.

[0029] This will allow for a good balance between the heating effect and heating efficiency of surgical flushing fluids under common ambient temperature conditions.

[0030] The present disclosure also provides an irrigation liquid pressure detection assembly for intraoperative irrigation equipment, which includes an irrigation liquid pressure detection device as described above and a flexible bag for containing irrigation liquid, wherein the flexible bag is provided with a liquid inlet connector and a liquid outlet connector on the same side for respectively sleeved with a medical diversion hose, and the flexible bag also has a flow channel connected from the liquid inlet connector to the liquid outlet connector.

[0031] According to some embodiments of the present disclosure, the flow channel in the flexible bag is in an M-shape that reciprocates multiple times between opposite sides of the flexible bag, and the M-shape includes two or more V-shapes.

[0032] The present disclosure further provides an intraoperative flushing device including the flushing liquid pressure detection device as described above, wherein the intraoperative flushing device further includes:

[0033] A chassis provided with a heat-insulating chamber, in which the flushing liquid pressure detection device and a cooling fan arranged toward the flushing liquid pressure detection device are fixed;

[0034] a peristaltic pump, the peristaltic pump being arranged on an outer surface of the chassis;

[0035] An inlet pipe clamp and an outlet pipe clamp are used for clamping and fixing a medical diversion hose, wherein the inlet pipe clamp and the outlet pipe clamp are fixed on the outer surface of the chassis, wherein the outlet pipe clamp is arranged adjacent to the flushing liquid pressure detection device in the insulation chamber.

[0036] According to some embodiments of the present disclosure, the thermal insulation chamber is located on a first side in the chassis, the outlet pipe clamp and the inlet pipe clamp are respectively arranged on a first side and a second side opposite to the first side on an outer surface of the chassis, and the peristaltic pump is arranged between the outlet pipe clamp and the inlet pipe clamp.

[0037] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0038] The positive and progressive effects of this disclosure are:

[0039] The intraoperative flushing equipment, flushing fluid pressure detection device and flushing fluid pressure detection assembly according to the present disclosure provide a flushing fluid pressure detection solution during medical flushing operations, which achieves low-cost and reliable detection of flushing fluid pressure by indirect measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A perspective view schematically shows an irrigation liquid pressure detection device for an intraoperative irrigation device according to a preferred embodiment of the present disclosure.

[0041] Figure 2 Schematically shows Figure 1 A top view of the flushing liquid pressure detection device visible in the figure (viewed downward from above the second side frame).

[0042] Figure 3 Schematically shows Figure 1 An exploded view of the flushing fluid pressure detection device visible in the figure, with its viewing angle and Figure 1 Basically the same.

[0043] Figure 4 Schematically shows Figure 3 A partially enlarged schematic diagram of the depressions of the two pressure transmission plates in the flushing liquid pressure detection device and the torque sensor suitable for being assembled to the depressions, with a viewing angle and Figure 3 Consistent.

[0044] Figure 5 Schematically shows Figure 1 A three-dimensional image of a pressure transmission plate in the flushing fluid pressure detection device can be seen in FIG.

[0045] Figure 6 An example of a port connector in an irrigation liquid pressure detection device for an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0046] Figure 7 The figure schematically shows a flexible bag for containing flushing liquid in a flushing liquid pressure detection assembly according to a preferred embodiment of the present disclosure.

[0047] Figure 8 A top perspective view of an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0048] Fig. 9 A perspective view of an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0049] Fig.10 A front view of an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0050] Description of reference numerals:

[0051] 1: Pressure transmission plate

[0052] 11: Door-shaped reinforced frame

[0053] 12: Inner surface of the pressure transmission plate (forming a hollow space)

[0054] 13: Middle main part

[0055] 14: Notch

[0056] 15: First side border

[0057] 16: Second side border

[0058] 17: Depression

[0059] 18: Temperature sensor placement

[0060] 2: Heating element

[0061] 3: Surface heat dissipation structure

[0062] 4: Port connector

[0063] 41: Narrow opening

[0064] 42: Special shaped opening

[0065] 5: Torque sensor

[0066] 51: Strain gauge housing cavity

[0067] 52: Deformed wall

[0068] 53: First loading end

[0069] 54: Second loading end

[0070] 9: Flexible bag

[0071] 91: Runner

[0072] 92: Liquid inlet connector

[0073] 93: Liquid outlet connector

[0074] 100: Flushing fluid pressure detection device

[0075] 200: Insulated room

[0076] 210: Insulation chamber partition

[0077] 220: Cooling fan

[0078] 300: Peristaltic pump

[0079] 310: Stepper Driver

[0080] 400: PLC module

[0081] 500: Temperature control table

[0082] 510: Pressure conversion module

[0083] 600: Power supply device

[0084] 610: Solid State Relay

[0085] 700: Chassis

[0086] 710: Chassis cooling opening

[0087] 800: Touch screen

[0088] 900: Inlet pipe clamp

[0089] 910: Export pipe clamp DETAILED DESCRIPTION

[0090] The preferred embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings of the specification. The following description is exemplary and not limiting of the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0091] In the following detailed description, directional terms, such as "left", "right", "up", "down", "front", "rear", etc., are used with reference to the directions described in the drawings. The components of the embodiments of the present invention can be placed in a variety of different directions, and the directional terms are used for illustrative purposes rather than limiting.

[0092] From the above description and the following more detailed exemplary description of the detection box according to the preferred embodiment of the present disclosure, those skilled in the art will be able to understand that the following specific embodiments of the present disclosure are well applicable to different operating room environments and provide a flushing fluid pressure detection solution during medical flushing operations, which achieves low-cost and reliable detection of flushing fluid pressure by indirect measurement. In addition, some preferred embodiments of the present disclosure are particularly suitable for different ambient temperature conditions, and can accurately heat the flushing fluid to be used to an appropriate temperature in the operating room under these different conditions to avoid discomfort to the patient caused by overcooling or overheating of the flushing fluid, and take into account the heating speed and efficiency and are not dependent on personnel experience.

[0093] Figure 1-6 The irrigation liquid pressure detection device 100 for an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown from different angles and aspects. Figure 7 An example of a flexible bag 9 for containing flushing liquid, which is particularly suitable for use with the flushing liquid pressure detection device 100 , is schematically shown. Figure 8-10 The intraoperative flushing device according to the preferred embodiment of the present disclosure is further illustrated, so as to facilitate a clearer understanding of how to apply the technical solution described in the present disclosure and the better technical effect that can be achieved.

[0094] First, refer to Figure 1-4As shown, the flushing liquid pressure detection device for intraoperative flushing equipment according to the preferred embodiment of the present disclosure includes a flexible bag holding mechanism, wherein the flexible bag holding mechanism includes two pressure transmission plates 1 and a torque sensor 5 whose main body is made of a flexible material;

[0095] The two pressure transmission plates 1 are assembled to be fixedly connected to each other at a first side edge and connected to each other via the torque sensor 5 at a second side edge opposite to the first side edge, so as to allow the second side edge to perform opening and closing movements in a direction perpendicular to the pressure transmission plate 1;

[0096] And wherein, at least one of the pressure transmission plates 1 forms a flat plate-shaped recess in the middle main body portion 13 of the inner side surfaces of the two plates adjacent to each other, so that a hollow space consisting of one or two flat plate-shaped recesses is formed between the two pressure transmission plates 1, and the hollow space is suitable for receiving and holding a flexible bag 9 for containing a flushing liquid, and a surface contact occurs between the flexible bag 9 and the inner side surfaces of the two pressure transmission plates 1, and the flexible bag 9 has a fluid inlet and outlet for the flushing liquid to flow in and out;

[0097] The main body of the torque sensor 5 is connected to one of the two pressure transmission plates 1 via a first loading end 53 and a second loading end 54 that are staggered from each other, and the torque sensor 5 is configured to detect the torque loaded via the first loading end 53 and the second loading end 54 .

[0098] The flushing liquid pressure detection device uses two pressure transmission plates 1 to form a thin plate-shaped hollow space to accommodate a flexible liquid bag. The flushing liquid flowing into and out of the flexible bag 9 for flushing will cause the flexible bag 9 to bulge slightly. Therefore, as long as there is a certain flow rate, the surface of the flexible bag 9 in the hollow space will maintain a relatively stable surface contact with the inner surface of the pressure transmission plate 1. Therefore, as the pressure transmission plate 1 and the surface of the flexible bag 9 are in surface contact, the fluid pressure of the flushing liquid in the flexible liquid bag is converted into the pressure on the pressure transmission plate 1, and this pressure prompts the two pressure transmission plates 1 to make an opening and closing movement at the second side edge (the amplitude can be very small), and the flexible body of the torque sensor 5 is subjected to the torque loaded via the first loading end 53 and the second loading end 54 with this opening and closing movement, and the torque is measured. It should be understood that the indirect detection of the flushing liquid fluid pressure of the flushing liquid pressure detection device provided by the present disclosure can be achieved with sufficient measurement accuracy in the case of an opening and closing movement with an amplitude of only centimeters or even millimeters. Moreover, this opening and closing movement can also be understood as being similar to the pivotal connection of the two pressure transmission plates 1 at the first side edge, which allows one of the pressure transmission plates 1 to rotate (open) a certain angle relative to the other around a pivot axis near the first side edge.

[0099] In other words, the flushing fluid pressure detection device provided by the present disclosure can indirectly detect the magnitude / change in fluid pressure of the fluid flowing in the flexible bag 9 in the above manner, and there is no sensing device or detection device that needs to be associated with the flexible bag 9 or arranged in the flexible bag 9. Therefore, not only can the detection accuracy and real-time performance meet the application scenarios of medical flushing fluid, but the consumable cost is also low and easy to use.

[0100] Among them, reference Figure 4 As shown, the two pressure transfer plates 1 can be provided with a block-shaped recess 17 at the second side, and the torque sensor 5 or its main body is suitable for being installed or assembled to the block-shaped recess 17. Of course, the installation space of the torque sensor formed by the block-shaped recess 17 and the appearance of the torque sensor 5 can be basically compatible, and its specific shape may be different from the example shown in the figure.

[0101] According to some preferred embodiments of the present disclosure, a strain gauge accommodating cavity 51 with strain gauges arranged therein is provided in the middle of the main body of the torque sensor 5 , thereby forming deformation wall portions 52 on both lateral sides of the strain gauge accommodating cavity 51 , each of which is close to one of the pressure transmission plates 1 .

[0102] According to some preferred embodiments of the present disclosure, the torque sensor 5 is configured to measure the torque loaded via the first loading end 53 and the second loading end 54 through the strain gauge and indirectly measure the change in fluid pressure in the flexible bag 9 received in the hollow space based on the torque.

[0103] According to some preferred embodiments of the present disclosure, the strain gauge accommodating cavity 51 is a hollow through hole, and the hollow through hole is in a double circular shape connected to each other. Of course, in some other embodiments, it is also feasible to design the hollow through hole into a rounded rectangle, an ellipse or an oblong shape.

[0104] Especially refer to Figure 4 As shown, according to some preferred embodiments of the present disclosure, symmetrical deformation wall portions 52 are formed on both lateral sides of the strain gauge accommodating cavity 51, and each of the deformation wall portions 52 has a thin wall section whose thickness changes along the longitudinal direction, and the middle part of the thin wall section has a transition section with increased thickness.

[0105] As described above, the pressure transmitted by the flexible bag 9 through direct surface contact with the pressure transmission plate 1 causes the pressure transmission plate 1 to slightly separate on one side. At this time, the first loading end 53 and the second loading end 54 will apply (shear) torque to the main body of the torque sensor 5, and the thin-walled parts (also called deformation columns) on both sides of the strain gauge accommodating cavity 51 that are more easily deformed will be deformed and quantitatively detected by means of the response of the strain gauge. This thin-walled design with a transition section with increased thickness in the middle part ensures that the main body of the torque sensor 5 can have relatively high reliability and a long service life in long-term repeated use while providing sufficient measurement accuracy by means of the detection of the strain gauge.

[0106] It is understandable that in Figure 4 In the preferred embodiment shown, the two pressure transmission plates 1 are assembled so that only at the second side frame 16 opposite to the first side frame 15, the two pressure transmission plates 1 have a relative freedom of movement in a direction perpendicular to the pressure transmission plates 1, that is, at Figure 3 The two pressure transmission plates 1 are fixedly connected on the lower side, while the upper side can make a small opening and closing movement. This degree of freedom can actually be achieved by simply connecting the two pressure transmission plates 1 with the torque sensor 5 having a certain flexibility (for example, with the help of fasteners such as screws). When the flushing liquid pressure in the flexible bag 9 received in the hollow space increases, the expanded flexible bag 9 will tend to separate the two pressure transmission plates 1. Since the two pressure transmission plates 1 can only make such a small opening and closing movement, the flexible bag 9 will cause the pressure transmission plates 1 to separate slightly on the upper side through the pressure transmitted by the direct surface contact with the pressure transmission plates 1. At this time, the first loading end 53 and the second loading end 54 will apply a (shear) torque to the main body of the torque sensor 5, and the thin wall parts (deformation wall parts 52, also called deformation columns) on both sides of the strain gauge accommodating cavity 51 that are more easily deformed will be deformed and quantitatively detected with the help of the response of the strain gauge.

[0107] The strain gauge used here may be slightly similar to the strain gauge used in the weighing sensor in terms of the basic working principle, that is, the deformation caused by the stress or pressure change is converted into the change of the resistance value of the resistor in the bridge, and further converted into the change of the voltage divider value at both ends of the resistor, thereby accurately calculating the magnitude of the force borne by the torque sensor 5 in an indirect manner. On this basis, since the expanded flexible bag 9 will tend to separate the two pressure transmission plates 1 as described above, the flexible bag 9 and the pressure transmission plate 1 basically maintain close surface contact to transmit the force, the liquid pressure in the flexible bag 9 or the change of the liquid pressure can be calculated based on the magnitude of the force borne by the torque sensor 5 and the area of ​​the main surface close to the flat concave portion of the pressure transmission plate 1 and the flexible bag 9.

[0108] In summary, if Figure 3 and Figure 4 This preferred embodiment of the present disclosure shown can measure the pressure applied by the middle bag body to the pressure transmission plates 1 on both sides by means of the torque sensor 5 and then indirectly monitor the pressure and pressure change of the flushing fluid in the flexible bag 9. A great advantage of this indirect detection method is that in fact the fluid pressure detection device or sensor is arranged and used in a way that is completely unrelated to the flushing fluid flexible bag 9, which is a consumable. Not only can the detection accuracy and real-time performance meet the application scenarios of medical flushing fluid, but it does not need to be removed from the disposable consumables and will not bring about significantly increased costs due to the use process that accompanies the disposable consumables. Therefore, this embodiment has a great cost advantage compared to other solutions with medical flushing fluid strength / pressure monitoring functions in the prior art, which may be reflected in the convenience of use and the significant reduction of labor or assembly and disassembly operations, and may also be reflected in the greatly reduced cost of consumables.

[0109] According to some embodiments of the present disclosure, the flushing liquid pressure detection device further integrates a flushing liquid heating function, and the flushing liquid pressure detection device may include:

[0110] A heating element 2, wherein the heating element 2 is attached to the outer surface of the pressure transmission plate 1, and the pressure transmission plate 1 may be made of a heat-conducting material, thereby also constituting a heat-conducting plate;

[0111] a temperature sensor, the temperature sensor being fixedly mounted at the flat plate-shaped recess of one of the pressure transmission plates 1;

[0112] The surface heat dissipation structure 3 has a plurality of heat dissipation fins, is disposed on the outside of the heating element 2, and is mounted on the outside of the pressure transmission plate 1 via a connecting piece.

[0113] The two pressure transfer plates 1 (ie, heat conduction plates) may optionally have the same shape or substantially the same shape, and the two flat plate-shaped recesses of the two plates together constitute the hollow space.

[0114] Although the outer contour of the hollow space formed by the flat plate-shaped recess in the assembled state of the two pressure transmission plates 1 is not directly shown in the figures because it is located inside the flushing liquid pressure detection device 100, it is still better to refer to these figures, especially the attached drawings. Figure 3-4It can be understood that the flushing liquid pressure detection device 100 in the embodiment utilizes two pressure transmission plates 1 to form a hollow space in the shape of a thin plate to accommodate a flexible liquid bag. The flushing liquid flowing in and out of the flexible bag 9 to achieve flushing will cause the flexible bag 9 to bulge slightly. Therefore, as long as there is a certain flow rate, the surface of the flexible bag 9 in the hollow space will maintain a relatively stable surface contact with the inner surface 12 of the pressure transmission plate 1, and the surface contact between the pressure transmission plate 1 and the surface of the flexible bag 9 is utilized to heat the flushing liquid in the flexible bag 9.

[0115] The thickness of the hollow space in the shape of a thin plate is much smaller or significantly smaller than the dimensions in the other two directions, and at the same time, it contacts two pressure transmission plates 1 on both sides in the thickness direction, which means that the contact area for heat conduction in such a heating method is relatively large relative to the volume of the hollow space and the flexible liquid bag contained therein, so that the heat conduction can very efficiently affect the flushing liquid in the flexible bag 9 to change its temperature. On this basis, the real-time monitoring provided by the appropriately arranged temperature sensors enables the flushing liquid to be used to be heated to the desired temperature relatively quickly in this environment similar to a small or micro constant temperature chamber, wherein the pressure transmission plate 1 can heat and maintain the flushing liquid in the flexible bag 9 at the target temperature in a relatively short time at a relatively low temperature (i.e., the temperature difference from the initial temperature of the flushing liquid is small), and there is basically no risk of accidentally heating the flushing liquid to an overheated state.

[0116] The technical solution described in the present disclosure provides an environment similar to a small or micro constant temperature chamber and its flat or thin plate shape, so that the temperature of the flushing fluid required for surgery is basically maintained near the desired temperature, providing the patient with optimal comfort. At the same time, because it does not require large-scale temperature control or high-power heating (such as through hot air), it has better energy consumption and cost-effectiveness.

[0117] As shown in the accompanying drawings, in a preferred embodiment of the present disclosure, the pressure transmission plate 1 has a rectangular shape and has a gate-shaped reinforcement frame 11 along the periphery of the rectangular shape, and the gate-shaped reinforcement frame 11 is raised relative to the middle main body part 13 of the pressure transmission plate 1 both on the inner side and the outer side.

[0118] Especially refer to Figure 4 Combined with Figure 3 As shown, in some preferred embodiments, the two pressure transmission plates 1 are assembled so that the two pressure transmission plates 1 are completely fixed to each other at the door-shaped reinforcement frame and the first side frame, and the two pressure transmission plates 1 are connected to each other via a torque sensor 5 at the second side frame of the door-shaped reinforcement frame opposite to the first side frame so as to have relative freedom of movement in a direction perpendicular to the heat conducting plate.

[0119] The flushing liquid pressure detection device according to the above preferred embodiment of the present disclosure also has the function of heating the flushing liquid, which utilizes the relatively stable surface contact maintained between the surface of the flexible bag in the hollow space and the inner surface of the pressure transmission plate under certain flow conditions, and heats the flushing liquid in the flexible bag by means of such surface contact between the pressure transmission plate and the surface of the flexible bag. Such a heating method and the real-time monitoring provided by the appropriately arranged temperature sensor enable the flushing liquid to be used to be heated to the desired temperature relatively quickly in an environment similar to a small or micro constant temperature chamber, wherein the pressure transmission plate can heat the flushing liquid in the flexible bag at a relatively low temperature (i.e., the temperature difference from the initial temperature of the flushing liquid is small) in a relatively short time and maintain it at the target temperature, without heating the flushing liquid to an overheated state.

[0120] In some further preferred embodiments, the thickness of the main part of the pressure transmission plate 1, namely the middle main part 13, can be very thin, for example, preferably 3mm-5mm thick, so that the outer periphery of the pressure transmission plate 1 needs to be raised to a certain height both inside and outside to provide the necessary structural strength to avoid deformation. At the same time, the raised peripheral frame can also provide assembly positions for assembly or assembly, such as connection holes, fastener holes, and the like.

[0121] According to some preferred embodiments of the present disclosure, Figure 1-4 With particular reference to the Figure 1 and 6 As shown, the flushing liquid pressure detection device 100 also includes:

[0122] The port connector 4 is rectangular and has a narrow opening 41, and the four corners of the port connector 4 are respectively connected or engaged with the frame ends of the door-shaped reinforced frames 11 of the two pressure transmission plates 1, so that the narrow opening 41 is connected to the hollow space.

[0123] Further preferably, two special-shaped orifices 42 are provided in the slit opening 41, the maximum width of the special-shaped orifices 42 is greater than the width of the slit opening 41 other than the special-shaped orifices 42, and is configured to receive a liquid inlet connector 92 and a liquid outlet connector 93 of the flexible bag 9 forming the fluid inlet and outlet.

[0124] Therefore, the two special-shaped holes 42 can play a certain role in fixing or limiting the flexible bag 9 by fixing or limiting the two fluid connectors, thereby improving reliability.

[0125] Reference Figure 1-6As shown, according to some preferred embodiments of the present disclosure, the flushing liquid pressure detection device 100 further includes a pressure sensor, which is configured to sense changes in the fluid pressure in the flexible bag 9 received in the hollow space.

[0126] According to some preferred embodiments of the present disclosure, particularly with reference to Figure 5 As shown, the heating element 2 is an electric heating element 2, and the door-shaped reinforcement frame 11 is formed with a notch 14 at the same position on the inner side and the outer side. The inner notch 14 is used for routing the temperature sensor (preferably arranged at the attachment position 18 of the temperature sensor shown in the figure), and the outer notch 14 is used for routing the electric heating element 2.

[0127] According to some preferred embodiments of the present disclosure, the heating element 2 is a thermoelectric cooling sheet based on the Peltier effect, and the pressure transmission plate 1 is made of aluminum or aluminum alloy material.

[0128] According to some preferred embodiments of the present disclosure, the thermoelectric cooling sheet is centrally attached to the outer surface of the pressure transmission plate 1, and the total area of ​​the thermoelectric cooling sheet is not less than 0.2 times the area of ​​the flat-plate-shaped recess.

[0129] According to some preferred embodiments of the present disclosure, the thickness of the middle main part 13 of the pressure transfer plate 1 is in the range of 2 mm to 6 mm, the thickness of the hollow space formed by one or two of the flat-plate-shaped recesses is in the range of 3 mm to 10 mm, and the length and width of the hollow space in the direction perpendicular to the thickness are not less than 5 times the thickness.

[0130] This preferred embodiment can well balance the heating effect and heating efficiency of the surgical irrigation fluid under common ambient temperature conditions.

[0131] In the following, we further combine the Figure 7-10 The example of the flexible bag 9 for containing the flushing liquid used in conjunction with the flushing liquid pressure detection device 100 is shown as well as Figure 8-10 An intraoperative irrigation device according to a preferred embodiment of the present disclosure is shown to illustrate the practical application and advantages of the present disclosure.

[0132] refer to Figure 7 In combination with other figures, it can be understood that the flushing fluid pressure detection assembly for intraoperative flushing equipment includes the above-mentioned and Figure 1-6 The flushing liquid pressure detection device 100 described in Figure 7 A flexible bag 9 for containing flushing liquid is shown.

[0133] The flexible bag 9 is provided with a liquid inlet connector 92 and a liquid outlet connector 93 respectively for sleeve connection of a medical diversion hose on the same side, and the flexible bag 9 also has a flow channel 91 connected from the liquid inlet connector 92 to the liquid outlet connector 93. The flow channel 91 in the flexible bag 9 is in an M-shaped shape that reciprocates multiple times between the opposite sides of the flexible bag 9, and the M-shaped shape includes two or more V-shapes.

[0134] Focus on reference Figure 8-10 As shown, the present disclosure further provides an intraoperative flushing device including the flushing liquid pressure detection device 100 as described above, wherein the intraoperative flushing device further includes:

[0135] A chassis 700 is provided with a heat-insulating chamber 200, in which the flushing liquid pressure detection device 100 and a cooling fan 220 arranged toward the flushing liquid pressure detection device 100 are fixed, the heat-insulating chamber is isolated from other areas in the chassis 700 by a heat-insulating chamber partition 210, and the chassis 700 may also have a chassis heat dissipation opening 710;

[0136] A peristaltic pump 300, wherein the peristaltic pump 300 is arranged on the outer surface of the chassis 700;

[0137] The inlet pipe clamp 900 and the outlet pipe clamp 910 are used to clamp and fix the medical diversion hose, and the inlet pipe clamp 900 and the outlet pipe clamp 910 are fixed on the outer surface of the chassis 700, wherein the outlet pipe clamp 910 is arranged adjacent to the flushing liquid pressure detection device 100 in the insulation chamber.

[0138] Wherein, the insulation chamber is located on the first side of the chassis 700, the outlet pipe clamp 910 and the inlet pipe clamp 900 are respectively arranged on the first side and the second side opposite to the first side on the outer surface of the chassis 700, and the peristaltic pump 300 is arranged between the outlet pipe clamp 910 and the inlet pipe clamp 900.

[0139] It is understood that the medical diversion hose (not shown) can be arranged to be associated with the peristaltic pump 300, so that the liquid in the tube is driven to flow at a required flow rate by the peristaltic pump 300 connected to the stepping driver 310. The medical diversion hose is connected to the liquid inlet connector 92 and the liquid outlet connector 93, so that the liquid is driven by the peristaltic pump 300 to flow into the flexible bag 9 first and then out of the flexible bag 9, and is directly heated by the heat conduction effect of the pressure transmission plate 1 described above during the flow in the flexible bag 9.

[0140] According to some optional specific embodiments, the intraoperative flushing device may also be provided in the chassis with a temperature control meter 500, a pressure conversion module 510, and a touch screen 800 for displaying monitoring parameters, which are convenient for personnel to monitor the current working status of the flushing device, including the real-time temperature and pressure of the flushing fluid. These components may also be associated with a PLC module provided in the chassis so as to be controlled by pre-programmed logic.

[0141] Optionally, the chassis may also be provided with a power supply device 600 and a solid-state relay 610 for controlling the power supply of each component in the device.

[0142] The intraoperative flushing equipment, flushing fluid pressure detection device and flushing fluid pressure detection assembly described in the above-mentioned preferred embodiments of the present disclosure can meet the flushing fluid pressure detection needs during medical flushing operations at a relatively low cost and realize a more reliable dynamic fluid pressure monitoring function. At the same time, it can also help to more accurately heat the flushing fluid to be used in the operating room to an appropriate temperature to avoid discomfort to the patient caused by overcooling or overheating of the flushing fluid, and to a certain extent take into account the heating speed and efficiency and save manpower (attention of surgery-related personnel) costs.

[0143] Furthermore, at least some of the preferred embodiments of the present disclosure described in detail above may further have the following advantages:

[0144] By using reusable medical flushing equipment or systems with heating and / or pressurization and / or pressure detection functions in combination with low-cost consumables (flexible bags), the temperature and pressure of the flushing fluid during surgery can be more accurately controlled, and the total cost of the solution is low;

[0145] The consumables have a simple structure, low cost, and are easy to install. There is no need to set up sensors or other detection equipment on the consumables. Disposable consumables also avoid the risk of cross infection.

[0146] The flushing speed and pressure of the flushing fluid can be adjusted in real time via a peristaltic pump to solve emergencies encountered during surgery;

[0147] The temperature control (i.e., heating and cooling) of the flushing fluid and the fluid pressure detection have the advantages of good real-time performance, and the related components are small in size.

[0148] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A flushing fluid pressure detection device for intraoperative flushing equipment, characterized in that: The flushing liquid pressure detection device comprises a flexible bag holding mechanism, wherein the flexible bag holding mechanism comprises two pressure transmission plates and a torque sensor whose main body is made of a flexible material; wherein the two pressure transmission plates are assembled to be fixedly connected to each other at a first side edge and connected to each other via the torque sensor at a second side edge opposite to the first side edge, thereby allowing the second side edge to perform opening and closing movements in a direction perpendicular to the pressure transmission plate; And wherein, at least one of the pressure transmission plates forms a flat plate-shaped recess in the middle main body portion of the inner side surfaces of the two plates adjacent to each other, so that a hollow space consisting of one or two flat plate-shaped recesses is formed between the two pressure transmission plates, and the hollow space is suitable for receiving and holding a flexible bag for containing flushing liquid, and makes the flexible bag and the inner side surfaces of the two pressure transmission plates have surface contact, and the flexible bag has a fluid inlet and outlet for the flushing liquid to flow in and out; The main body of the torque sensor is connected to one of the two pressure transmission plates via a first loading end and a second loading end that are staggered from each other, and the torque sensor is configured to detect torque loaded via the first loading end and the second loading end.

2. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 1, characterized in that: A strain gauge accommodating cavity in which a strain gauge is arranged is provided in the middle of the main body of the torque sensor, so that deformation wall portions are formed on both lateral sides of the strain gauge accommodating cavity, each of which is close to one of the pressure transmission plates.

3. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 2, characterized in that: The torque sensor is configured to measure the torque applied via the first loading end and the second loading end through the strain gauge and indirectly measure a change in pressure of the fluid in the flexible bag received in the hollow space according to the torque.

4. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 2, characterized in that: The strain gauge accommodating cavity is a hollow through hole, and the hollow through hole is in the shape of two circles connected to each other, or the hollow through hole is in the shape of a rounded rectangle, an ellipse or an oblong.

5. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 2, characterized in that: Symmetrical deformation wall portions are formed on both lateral sides of the strain gauge accommodating cavity, each of which has a thin wall section with varying thickness along the longitudinal direction, and the middle portion of the thin wall section has a transition section with increased thickness.

6. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 1, characterized in that: The flushing liquid pressure detection device also includes: A heating element, the heating element being attached to the outer surface of the pressure transmission plate, wherein the pressure transmission plate is made of a heat-conducting material; a temperature sensor fixedly mounted at the flat plate-shaped recess of one of the pressure transmission plates; And wherein, the two pressure transfer plates have the same rectangular shape, and the two flat plate-type recesses of the two plates together constitute the hollow space.

7. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 6, characterized in that: The pressure transmission plate has a gate-shaped reinforcement frame along the periphery of the rectangular shape, and the gate-shaped reinforcement frame is raised relative to the middle main body portion of the pressure transmission plate on both the inner side and the outer side; And wherein, the flushing liquid pressure detection device also includes: The port connector is rectangular and has a long and narrow opening, and the four corners of the port connector are respectively connected or engaged with the frame ends of the gate-shaped reinforced frames of the two pressure transmission plates, so that the long and narrow opening is connected to the hollow space.

8. The flushing fluid pressure detection device for intraoperative flushing equipment according to claim 7, characterized in that: The slit opening is provided with two shaped apertures, the maximum width of the shaped apertures being greater than the width of the slit opening except the shaped apertures, and is configured to receive a liquid inlet connector and a liquid outlet connector of the flexible bag forming the fluid inlet and outlet.

9. The flushing liquid pressure detection device for intraoperative flushing equipment according to claim 5, characterized in that: The heating element is an electric heating element, and the door-shaped reinforcement frame is formed with notches at the same positions on the inner and outer sides, wherein the heating element is a thermoelectric cooling sheet based on the Peltier effect, and the pressure transmission plate is made of aluminum or aluminum alloy material; And wherein the thermoelectric cooling sheet is centrally attached to the outer surface of the pressure transmission plate, and the total area of ​​the thermoelectric cooling sheet is not less than 0.2 times the area of ​​the flat plate-shaped recess.

10. The flushing liquid pressure detection device for intraoperative flushing equipment according to any one of claims 1 to 9, characterized in that: The thickness of the middle main part of the pressure transfer plate is in the range of 2mm to 6mm, the thickness of the hollow space formed by one or two of the flat-plate-shaped recesses is in the range of 3mm to 10mm, and the length and width of the hollow space in the direction perpendicular to the thickness are not less than 5 times the thickness.

11. A flushing fluid pressure detection assembly for intraoperative flushing equipment, the flushing fluid pressure detection assembly comprising a flushing fluid pressure detection device as claimed in any one of claims 1 to 10 and a flexible bag for containing flushing fluid, wherein: The flexible bag is provided with a liquid inlet connector and a liquid outlet connector respectively used for sleeve connection of a medical diversion hose on the same side, and the flexible bag also has a flow channel connected from the liquid inlet connector to the liquid outlet connector.

12. The flushing fluid pressure detection assembly for intraoperative flushing equipment according to claim 11, characterized in that: The flow channel in the flexible bag is in an M-shaped shape that reciprocates multiple times between opposite sides of the flexible bag, and the M-shaped shape includes two or more V-shapes.

13. An intraoperative flushing device comprising the flushing liquid pressure detection device according to any one of claims 1 to 10, wherein: The intraoperative flushing device also includes: A chassis provided with a heat-insulating chamber, in which the flushing liquid pressure detection device and a cooling fan arranged toward the flushing liquid pressure detection device are fixed; a peristaltic pump, the peristaltic pump being arranged on an outer surface of the chassis; An inlet pipe clamp and an outlet pipe clamp are used for clamping and fixing a medical diversion hose, wherein the inlet pipe clamp and the outlet pipe clamp are fixed on the outer surface of the chassis, wherein the outlet pipe clamp is arranged adjacent to the flushing liquid pressure detection device in the insulation chamber.

14. The flushing liquid pressure detection assembly for intraoperative flushing equipment according to claim 13, characterized in that: The heat-insulating chamber is located at a first side of the chassis, the outlet pipe clamp and the inlet pipe clamp are respectively arranged on a first side and a second side opposite to the first side on the outer surface of the chassis, and the peristaltic pump is arranged between the outlet pipe clamp and the inlet pipe clamp.

Images