Intraoperative flushing equipment, flushing fluid heating device used for intraoperative flushing equipment and flushing fluid heating assembly

Abstract

The invention discloses intraoperative flushing equipment, a flushing fluid heating device used for the same and a flushing fluid heating assembly, the flushing fluid heating device comprises two heat conduction plates which are detachably assembled together, at least one of the heat conduction plates forms a flat-plate-shaped concave part at the middle main body part of the adjacent inner side surfaces of the two heat conduction plates, the two heat-conducting plates are arranged in parallel, so that a hollow space formed by one or two flat-plate-shaped concave parts is formed between the two heat-conducting plates, the hollow space is suitable for receiving a flexible bag used for containing flushing fluid and enabling the flexible bag to be in surface contact with the inner side surfaces of the two heat-conducting plates, and the flexible bag is provided with a fluid inlet and outlet through which the flushing fluid flows in and out; the heating element is attached to the outer side surface of the heat conducting plate; and the temperature sensor is fixedly mounted at the flat-plate-shaped concave part of one of the heat conducting plates. According to the invention, the flushing fluid to be used can be accurately heated to a proper temperature in the operating room so as to avoid discomfort of a patient caused by overcooling or overheating of the flushing fluid.

Description

Technical Field

[0001] The present disclosure relates to medical equipment, and more particularly to an intraoperative flushing device, a flushing fluid heating device and a flushing fluid heating assembly for the intraoperative flushing device, 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 a certain flushing liquid flow rate or pressure to remove liquid or solid particles generated during surgery, but the temperature of the flushing liquid used depends on the ambient temperature. Since the ambient temperature is often low, such intraoperative flushing equipment in the prior art that lacks temperature regulation capabilities often causes discomfort to patients in actual applications, and even causes severe discomfort to patients in some low-temperature environments.

[0004] To this end, there are also some existing solutions that attempt to make up for the above shortcomings of surgical flushing equipment. One approach is to store the surgical flushing fluid in a constant temperature environment with a suitable temperature, such as a greenhouse, and transfer it to the operating room for operation when necessary. Another approach is to use equipment such as a hot air blower to quickly heat the flushing fluid container in order to heat the flushing fluid to be used.

[0005] However, these solutions are inconvenient to use in a complex operating room environment where the temperature may be low. In addition, these solutions are more dependent on the experience and operation of surgical assistants, which not only increases labor costs, but also often fails to keep the flushing fluid at the optimal or most appropriate flushing fluid temperature for the patient's feelings when the flushing device is used during surgery. Moreover, increasing the heating power for rapid heating may sometimes cause the flushing fluid to be heated to an excessively high (overheated) temperature that may also cause discomfort to the patient. In other words, the existing solutions cannot achieve satisfactory results in terms of the accuracy of the heating control of the flushing fluid.

[0006] Therefore, there is an urgent need to provide a new flushing liquid heating 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

[0007] 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 heating device and a flushing liquid heating assembly therefor.

[0008] The present disclosure provides a flushing liquid heating device for intraoperative flushing equipment, characterized in that the flushing liquid heating device comprises:

[0009] Two heat-conducting plates detachably assembled together, at least one of the heat-conducting 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 as to form a hollow space formed by one or two flat plate-shaped recesses in the middle of the two heat-conducting plates, the hollow space is suitable for receiving a flexible bag for containing a flushing liquid, and makes a surface contact between the flexible bag and the inner side surfaces of the two heat-conducting plates, the flexible bag has a fluid inlet and outlet for the flushing liquid to flow in and out;

[0010] A heating element, the heating element being attached to the outer surface of the heat conducting plate;

[0011] A temperature sensor is fixedly mounted at the flat plate-shaped recess of one of the heat conducting plates.

[0012] The flushing liquid heating device provided by the present disclosure uses two heat conducting 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. Therefore, 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 heat conducting plate, and the flushing liquid in the flexible bag is heated by the surface contact between the heat conducting plate and the surface of the flexible bag. Such a heating method and the real-time monitoring provided by the appropriately arranged temperature sensors 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 heat conducting 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.

[0013] According to some embodiments of the present disclosure, the flushing liquid heating device further comprises:

[0014] The surface heat dissipation structure has a plurality of heat dissipation fins, which are arranged on the outside of the heating element and installed on the outside of the heat conducting plate via a connecting piece.

[0015] According to some embodiments of the present disclosure, the two heat conducting plates have the same shape, and the two flat plate-shaped recesses of the two plates together constitute the hollow space.

[0016] Therefore, the heat-conducting plate in the form of a thin plate can still have a certain structural strength while making the production cost of the flushing liquid heating device relatively low.

[0017] According to some embodiments of the present disclosure, the heat conducting plate has a rectangular shape and 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 heat conducting plate both inside and outside.

[0018] According to some embodiments of the present disclosure, the flushing liquid heating device further comprises:

[0019] 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 heat-conducting plates, so that the long and narrow opening is connected to the hollow space.

[0020] According to some preferred 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.

[0021] Therefore, the two special-shaped holes 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 heating device in the operating room environment.

[0022] According to some preferred embodiments of the present disclosure, the flushing liquid heating device further comprises:

[0023] A pressure sensor is configured to sense a change in pressure of a fluid in the flexible bag received in the hollow space.

[0024] According to some preferred embodiments of the present disclosure, the two heat conducting plates are assembled such that the two heat conducting plates are completely fixed to each other at the first side frame of the door-shaped reinforcement frame, and the two heat conducting plates are connected to each other via a torque sensor at the second side frame of the door-shaped reinforcement frame opposite to the first side frame to have a relative freedom of movement in a direction perpendicular to the heat conducting plates;

[0025] The torque sensor includes a main body made of a deformable flexible material, a strain gauge accommodating cavity with a strain gauge arranged in the middle of the main body, 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 heat conducting plates. The main body is connected to one of the two heat conducting plates via a first loading end and a second loading end, respectively, wherein the first loading end and the second loading end are arranged diagonally relative to the strain gauge accommodating cavity, and the torque sensor is configured to be able 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 based on the torque.

[0026] According to some embodiments of the present disclosure, the heating element is an electric heating element, and the door-shaped reinforcement frame has notches formed at the same positions on the inner side and the outer side.

[0027] The inner notch can be used for routing the related connecting wires of the temperature sensor, and the outer notch can be used for routing the power supply of the power heating element.

[0028] According to some embodiments of the present disclosure, the heating element is a thermoelectric cooling sheet based on the Peltier effect, and the heat conducting plate is made of aluminum or aluminum alloy. The thermoelectric cooling sheet is a semiconductor cooling sheet, which constitutes a heat pump with one side cooling and the other side heating in the present disclosure to adjust the heat conducting plate to the most appropriate temperature.

[0029] According to some preferred embodiments of the present disclosure, the thermoelectric cooling sheet is centrally attached to the outer surface of the heat conducting 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.

[0030] According to some embodiments of the present disclosure, the thickness of the middle main body portion of the heat conducting 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.

[0031] This embodiment can well balance the heating effect and heating efficiency of the surgical irrigation fluid under common ambient temperature conditions.

[0032] The present disclosure also provides an irrigation liquid heating assembly for an intraoperative irrigation device, the irrigation liquid heating assembly comprising the irrigation liquid heating 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.

[0033] 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.

[0034] The present disclosure further provides an intraoperative flushing device comprising the flushing liquid heating device as described above, wherein the intraoperative flushing device further comprises:

[0035] A chassis provided with a heat-insulating chamber, in which the flushing liquid heating device and a cooling fan arranged toward the flushing liquid heating device are fixed;

[0036] a peristaltic pump, the peristaltic pump being arranged on an outer surface of the chassis;

[0037] 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 heating device in the heat insulation chamber.

[0038] 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.

[0039] 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.

[0040] The positive and progressive effects of this disclosure are:

[0041] The intraoperative flushing equipment, flushing fluid heating device and flushing fluid heating assembly according to the present disclosure can help to more accurately heat the flushing fluid to be used to an appropriate temperature in the operating room 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A perspective view schematically shows an irrigation liquid heating device for an intraoperative irrigation device according to a preferred embodiment of the present disclosure.

[0043] Figure 2 Schematically shows Figure 1 A top view of the rinse liquid heating device visible in the figure (viewed downward from above the second side frame).

[0044] Figure 3 Schematically shows Figure 1 Exploded view of the flushing fluid heating unit visible in the figure, with its viewing angle and Figure 1 Basically the same.

[0045] Figure 4 Schematically shows Figure 3 A partially enlarged schematic diagram of the depressions of the two heat conducting plates in the flushing liquid heating device and the torque sensor suitable for being assembled in the depressions, with a viewing angle and Figure 3 Consistent.

[0046] Figure 5 Schematically shows Figure 1 A three-dimensional image of a heat conducting plate in the flushing liquid heating device can be seen in FIG.

[0047] Figure 6 An example of a port connector in an irrigation liquid heating device for an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0048] Figure 7 The figure schematically shows a flexible bag for containing the washing liquid in the washing liquid heating assembly according to the preferred embodiment of the present disclosure.

[0049] Figure 8 A top perspective view of an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0050] Fig. 9 A perspective view of an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0051] Fig.10 A front view of an intraoperative irrigation device according to a preferred embodiment of the present disclosure is schematically shown.

[0052] Description of reference numerals:

[0053] 1: Heat conduction plate

[0054] 11: Door-shaped reinforced frame

[0055] 12: Inner surface of heat conducting plate (forming hollow space)

[0056] 13: Middle main part

[0057] 14: Notch

[0058] 15: First side border

[0059] 16: Second side border

[0060] 17: Depression

[0061] 18: Temperature sensor placement

[0062] 2: Heating element

[0063] 3: Surface heat dissipation structure

[0064] 4: Port connector

[0065] 41: Narrow opening

[0066] 42: Special shaped opening

[0067] 5: Torque sensor

[0068] 51: Strain gauge housing cavity

[0069] 52: Deformed wall

[0070] 53: First loading end

[0071] 54: Second loading end

[0072] 9: Flexible bag

[0073] 91: Runner

[0074] 92: Liquid inlet connector

[0075] 93: Liquid outlet connector

[0076] 100: Flushing fluid heating device

[0077] 200: Insulated room

[0078] 210: Insulation chamber partition

[0079] 220: Cooling fan

[0080] 300: Peristaltic pump

[0081] 310: Stepper Driver

[0082] 400: PLC module

[0083] 500: Temperature control table

[0084] 510: Pressure conversion module

[0085] 600: Power supply device

[0086] 610: Solid State Relay

[0087] 700: Chassis

[0088] 710: Chassis cooling opening

[0089] 800: Touch screen

[0090] 900: Inlet pipe clamp

[0091] 910: Export pipe clamp DETAILED DESCRIPTION

[0092] 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.

[0093] 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.

[0094] 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 present disclosure is well adapted to different operating room environments, especially under different ambient temperature conditions, and can 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, while taking into account the heating speed and efficiency and not relying on personnel experience.

[0095] Figure 1-6 The irrigation liquid heating 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 washing liquid that is particularly suitable for use with the washing liquid heating 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.

[0096] First, refer to Figure 1-4 As shown, the irrigation liquid heating device 100 for intraoperative irrigation equipment according to the preferred embodiment of the present disclosure includes:

[0097] Two heat-conducting plates 1 detachably assembled together, at least one of the heat-conducting 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 as to form a hollow space composed of one or two flat plate-shaped recesses in the middle of the two heat-conducting plates 1, the hollow space is suitable for receiving a flexible bag 9 for containing a flushing liquid, and makes a surface contact between the flexible bag 9 and the inner side surfaces 12 of the two heat-conducting plates 1, and the flexible bag 9 has a fluid inlet and outlet for the flushing liquid to flow in and out;

[0098] A heating element 2, wherein the heating element 2 is attached to the outer surface of the heat conducting plate 1;

[0099] A temperature sensor, wherein the temperature sensor is fixedly mounted at the flat plate-shaped recess of one of the heat conducting plates 1;

[0100] The surface heat dissipation structure 3 has a plurality of heat dissipation fins, which are arranged on the outside of the heating element 2 and are installed on the outside of the heat conducting plate 1 via a connecting piece.

[0101] The two heat conducting plates 1 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.

[0102] Although the outer contour of the hollow space formed by the flat plate-shaped recess in the assembled state of the two heat conducting plates 1 is not directly shown in the figures because it is located inside the flushing liquid heating device 100, it is still better to refer to these figures, especially the attached drawings. Figure 3-4 It can be understood that the flushing liquid heating device 100 in the embodiment utilizes two heat conducting 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 heat conducting plate 1, and the surface contact between the heat conducting plate 1 and the surface of the flexible bag 9 is utilized to heat the flushing liquid in the flexible bag 9.

[0103] 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 heat-conducting 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 heat-conducting plate 1 can heat the flushing liquid in the flexible bag 9 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, and there is basically no risk of accidentally heating the flushing liquid to an overheated state.

[0104] 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.

[0105] As shown in the accompanying drawings, in a preferred embodiment of the present disclosure, the heat conducting 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 heat conducting plate 1 both on the inner side and the outer side.

[0106] In some further preferred embodiments, the thickness of the main part of the heat conducting plate 1, i.e., the middle main body part 13, can be very thin, for example, preferably 3 mm to 5 mm thick, so that the outer periphery of the heat conducting 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.

[0107] 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 heating device 100 also includes:

[0108] 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 reinforcement frames 11 of the two heat-conducting plates 1, so that the narrow opening 41 is connected to the hollow space.

[0109] 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.

[0110] 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.

[0111] Reference Figure 1-6 As shown, according to some preferred embodiments of the present disclosure, the flushing liquid heating 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.

[0112] More preferably, especially with reference to Figure 4 Combined with Figure 3 As shown, the two heat conducting plates are assembled such that the two heat conducting plates are completely fixed to each other at the door-shaped reinforcement frame and the first side frame, and the two heat conducting plates are connected to each other via the 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 plates.

[0113] refer to Figure 4 As shown, the two heat-conducting 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.

[0114] The torque sensor 5 includes a main body made of a deformable flexible material, a strain gauge accommodating cavity 51 with a strain gauge arranged in the middle of the main body, so that a deformable wall portion 52 close to a heat conducting plate is formed on both lateral sides of the strain gauge accommodating cavity 51, and the main body is connected to one of the two heat conducting plates via a first loading end 53 and a second loading end 54, respectively, wherein the first loading end 53 and the second loading end 54 are arranged diagonally relative to the strain gauge accommodating cavity 51, and the torque sensor 5 is configured to be able 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 according to the torque. The strain gauge accommodating cavity 51 can preferably be a hollow through hole, and the shape of the through hole is as follows: Figure 4 The double circle shown in FIG. 1 is convenient for setting strain gauges therein.

[0115] It is understandable that in Figure 4 In the preferred partial design shown, the two heat conducting plates 1 are assembled so that only at the second side frame 16 opposite to the first side frame 15, the two heat conducting plates 1 have a relative freedom of movement in a direction perpendicular to the heat conducting plates 1, that is, at Figure 3The two heat-conducting 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 connecting the two heat-conducting plates 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 heat-conducting plates. Since the two heat-conducting plates can only make such a small opening and closing movement, the flexible bag 9 will cause the heat-conducting plates to separate slightly on the upper side through the pressure transmitted by the direct surface contact with the heat-conducting plates. 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 (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.

[0116] The strain gauge used here is 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 heat conducting plates as described above, the flexible bag 9 and the heat conducting plates 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 heat conducting plate and the flexible bag 9.

[0117] Thus, this more preferred embodiment of the present disclosure (having Figure 4 The partial design shown in the figure) can measure the pressure exerted by the middle bag body on the heat conducting plates on both sides with the help 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 the fluid pressure detection device or sensor is actually 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 in labor or assembly and disassembly operations, and may also be reflected in the greatly reduced cost of consumables.

[0118] 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.

[0119] 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 heat conducting plate 1 is made of aluminum or an aluminum alloy material.

[0120] According to some preferred embodiments of the present disclosure, the thermoelectric cooling sheet is centrally attached to the outer surface of the heat conducting 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.

[0121] According to some preferred embodiments of the present disclosure, the thickness of the middle main body portion 13 of the heat conducting 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 a direction perpendicular to the thickness are not less than 5 times the thickness.

[0122] This preferred embodiment can well balance the heating effect and heating efficiency of the surgical irrigation fluid under common ambient temperature conditions.

[0123] In the following, we further combine the Figure 7-10 The example of the flexible bag 9 for containing the washing liquid used in conjunction with the washing liquid heating device 100 is shown. 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.

[0124] refer to Figure 7 In combination with other figures, it can be understood that the flushing liquid heating assembly for intraoperative flushing equipment includes the above-mentioned and Figure 1-6 The flushing liquid heating device 100 depicted in Figure 7 A flexible bag 9 for containing flushing liquid is shown.

[0125] 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.

[0126] Focus on reference Figure 8-10 As shown, the present disclosure further provides an intraoperative flushing device including the flushing liquid heating device 100 as described above, wherein the intraoperative flushing device further includes:

[0127] A chassis 700 is provided with a heat-insulating chamber 200, in which the washing liquid heating device 100 and a cooling fan 220 arranged toward the washing liquid heating 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;

[0128] A peristaltic pump 300, wherein the peristaltic pump 300 is arranged on the outer surface of the chassis 700;

[0129] 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 heating device 100 in the insulation chamber.

[0130] 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.

[0131] It is understandable that the medical drainage 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 drainage 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 heat conductive plate 1 described above during the flow in the flexible bag 9.

[0132] 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.

[0133] 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.

[0134] The intraoperative flushing equipment, flushing fluid heating device and flushing fluid heating assembly described in the above-mentioned preferred embodiments of the present disclosure help to more accurately heat the flushing fluid to be used to an appropriate temperature in the operating room 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.

[0135] Furthermore, at least some of the preferred embodiments of the present disclosure described in detail above may further have the following advantages:

[0136] By using a reusable heating and / or pressurizing system with low-cost consumables (flexible bags), the temperature and pressure of the irrigation fluid during surgery can be more accurately controlled, and the total cost of the solution is low;

[0137] 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.

[0138] 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;

[0139] The temperature control (i.e., heating and cooling) of the flushing liquid is rapid and real-time, and the related components are compact.

[0140] 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 heating device for intraoperative flushing equipment, characterized in that: The flushing liquid heating device comprises: Two heat-conducting plates detachably assembled together, at least one of the heat-conducting 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 as to form a hollow space formed by one or two flat plate-shaped recesses in the middle of the two heat-conducting plates, the hollow space is suitable for receiving a flexible bag for containing a flushing liquid, and makes a surface contact between the flexible bag and the inner side surfaces of the two heat-conducting plates, the flexible bag has a fluid inlet and outlet for the flushing liquid to flow in and out; A heating element, the heating element being attached to the outer surface of the heat conducting plate; A temperature sensor is fixedly mounted at the flat plate-shaped recess of one of the heat conducting plates.

2. The flushing liquid heating device for intraoperative flushing equipment according to claim 1, characterized in that: The flushing liquid heating device also includes: The surface heat dissipation structure has a plurality of heat dissipation fins, which are arranged on the outside of the heating element and installed on the outside of the heat conducting plate via a connecting piece.

3. The flushing liquid heating device for intraoperative flushing equipment according to claim 2, characterized in that: The two heat conducting plates have the same shape, and the two flat plate-shaped recesses of the two plates together constitute the hollow space.

4. The flushing liquid heating device for intraoperative flushing equipment according to claim 3, characterized in that: The heat conducting plate has a rectangular shape and has a gate-shaped reinforcement frame along the periphery of the rectangular shape. The gate-shaped reinforcement frame is raised relative to the middle main body portion of the heat conducting plate at both the inner side and the outer side.

5. The flushing liquid heating device for intraoperative flushing equipment according to claim 4, characterized in that: The flushing liquid heating 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 heat-conducting plates, so that the long and narrow opening is connected to the hollow space.

6. The flushing liquid heating device for intraoperative flushing equipment according to claim 5, 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.

7. The flushing liquid heating device for intraoperative flushing equipment according to claim 6, characterized in that: The flushing liquid heating device also includes: A pressure sensor is configured to sense a change in pressure of a fluid in the flexible bag received in the hollow space.

8. The flushing liquid heating device for intraoperative flushing equipment according to claim 6, characterized in that: The two heat conducting plates are assembled such that the two heat conducting plates are completely fixed to each other at the first side frame of the door-shaped reinforcement frame, and the two heat conducting plates are connected to each other via a torque sensor at the second side frame of the door-shaped reinforcement frame opposite to the first side frame so as to have a relative degree of freedom of movement in a direction perpendicular to the heat conducting plates; The torque sensor includes a main body made of a deformable flexible material, a strain gauge accommodating cavity with a strain gauge arranged in the middle of the main body, 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 heat conducting plates. The main body is connected to one of the two heat conducting plates via a first loading end and a second loading end, respectively, wherein the first loading end and the second loading end are arranged diagonally relative to the strain gauge accommodating cavity, and the torque sensor is configured to be able 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 based on the torque.

9. The flushing liquid heating device for intraoperative flushing equipment according to claim 4, 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 side and the outer side.

10. The flushing liquid heating device for intraoperative flushing equipment according to any one of claims 1 to 9, characterized in that: The heating element is a thermoelectric cooling sheet based on the Peltier effect, and the heat conducting plate is made of aluminum or aluminum alloy.

11. The flushing liquid heating device for intraoperative flushing equipment according to claim 10, characterized in that: The thermoelectric cooling sheet is centrally attached to the outer surface of the heat conducting 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.

12. The flushing liquid heating device for intraoperative flushing equipment according to any one of claims 1 to 9, characterized in that: The thickness of the middle main body part of the heat conducting 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 the direction perpendicular to the thickness are not less than 5 times the thickness.

13. An irrigation liquid heating assembly for an intraoperative irrigation device, the irrigation liquid heating assembly comprising an irrigation liquid heating device as claimed in any one of claims 1 to 12 and a flexible bag for containing irrigation liquid, 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.

14. The flushing liquid heating assembly for intraoperative flushing equipment according to claim 13, 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.

15. An intraoperative irrigation device comprising the irrigation liquid heating device according to any one of claims 1 to 12, wherein: The intraoperative flushing device also includes: A chassis provided with a heat-insulating chamber, in which the flushing liquid heating device and a cooling fan arranged toward the flushing liquid heating 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 heating device in the heat insulation chamber.

16. The flushing liquid heating assembly for intraoperative flushing equipment according to claim 15, 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.

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