Liquid storage cylinder with metering function and operation auxiliary instrument

Abstract

The invention discloses a liquid storage cylinder with a metering function and an operation auxiliary instrument.The liquid storage cylinder with the metering function comprises a liquid collecting cylinder, a liquid level sensor is arranged on the inner side wall of the liquid collecting cylinder in the height direction, and a scale body is arranged at the bottom of the liquid collecting cylinder; the function box is arranged on one side of the liquid collecting cylinder, a control panel and a displayer are arranged on the outer side of the function box, a processor is arranged in the function box, and the processor is in electric signal connection with the liquid level sensor and the scale body and is in circuit connection with the control panel and the displayer. The volume and the weight of the mixed liquid in the liquid collecting cylinder are obtained, the density of the perfusate and the density of the human blood are combined, the volume of the blood in the mixed liquid and the volume of the perfusate can be calculated, the volume and the volume are displayed to medical staff through the displayer, and therefore the medical staff can obtain more accurate physiological data information, and the accuracy of the medical staff is improved. Therefore, the condition of a patient can be calculated more accurately, and the accuracy of patient state evaluation is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical data measurement, and in particular to a liquid storage cylinder with a measurement function and a surgical auxiliary instrument. Background Art

[0002] With the continuous advancement of medical technology, modern medicine has gradually increased its attention to the measurement of patients' physiological data. Obtaining patients' physiological data can play a vital role in the treatment evaluation of patients, making it easier for medical staff to make accurate judgments on the patients' conditions.

[0003] During the operative phase of a hysteroscopic procedure, the uterine cavity is inflated with a distending medium to create a visible space for the procedure. Hysteroscopic surgery requires the use and recovery of perfusate. By recording the amount of perfusate used and recovered, as well as the amount of blood the patient loses during the procedure, the patient's condition can be estimated and used as part of the assessment criteria for the patient's surgical condition.

[0004] In the prior art, a common practice is to place a bucket under the operating table to collect liquids, such as the distension fluid measuring bucket used in hysteroscopic surgery disclosed in CN220649674U. Since blood and liquid medicine are miscible and have different densities, medical staff can only estimate the amount of blood based on the amount used and recovered, and roughly infer the patient's condition based on experience. Without accurate data reference, it is impossible to accurately know the perfusion fluid difference and the patient's bleeding volume.

[0005] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0006] In order to solve the problem in the prior art that the uterine distension fluid measuring barrel cannot provide accurate perfusion fluid difference and patient bleeding volume, resulting in medical staff's inaccurate estimation of patient bleeding volume and difficulty in accurately judging the patient's surgical condition, the present invention proposes a liquid storage cylinder and surgical auxiliary instrument with a metering function.

[0007] The present invention is achieved through the following technical solutions:

[0008] A liquid storage cylinder with a metering function, wherein the liquid storage cylinder with a metering function comprises:

[0009] A liquid collecting cylinder, wherein a liquid level sensor is provided on the inner side wall of the liquid collecting cylinder along the height direction, and a scale body is provided at the bottom of the liquid collecting cylinder;

[0010] A functional box is provided on one side of the liquid collecting cylinder, a control panel and a display are provided on the outside of the functional box, and a processor is provided inside the functional box. The processor is electrically connected to the liquid level sensor and the scale body, and is circuitally connected to the control panel and the display; the processor is used to calculate the volume of the perfusion fluid and blood based on the liquid level height measured by the liquid level sensor, the liquid weight weighed by the scale body, and the density of the perfusion fluid and blood.

[0011] The liquid storage cylinder with metering function, wherein the processor includes:

[0012] an acquisition module, the acquisition module being used to acquire the liquid level measured by the liquid level sensor and the liquid weight measured by the scale;

[0013] an information module, the information module being used to store the densities of the perfusate and the blood;

[0014] a calculation module, configured to calculate the volumes of the perfusate and blood according to a preset formula;

[0015] The preset formula is: m 总 =ρ 药液 *(V 总 -V 血液 )+ρ 血液 *V 血液 ;

[0016] The formula for calculating the perfusion fluid volume is: V 药液 =V 总 -V 血液 .

[0017] The liquid storage cylinder with metering function, wherein the liquid collection cylinder includes an observation wall, the observation wall is a transparent observation wall, and the side of the observation wall is tightly connected to the corresponding side wall of the liquid collection cylinder.

[0018] The liquid storage cylinder with a metering function, wherein the observation wall is provided with a plurality of marking parts along the height direction of the liquid collection cylinder, and the plurality of marking parts are used to mark the volume of the liquid in the liquid collection cylinder.

[0019] The liquid storage cylinder with metering function, wherein the cross sections at different heights in the liquid collection cylinder have the same shape and size.

[0020] The liquid storage cylinder with a metering function is described, wherein the opening of the liquid collection cylinder is detachably provided with a liquid guide part, and the liquid guide part includes a first mounting portion that fits snugly with the opening of the liquid collection cylinder, and a guide plate tightly connected to the first mounting portion, and the guide plate extends to the outside of the first mounting portion and is inclined at a predetermined angle.

[0021] The liquid storage cylinder with metering function, wherein the opening of the liquid collection cylinder is further provided with a detachable cover, and the cover comprises a second mounting portion and a top plate tightly arranged on one side of the second mounting portion.

[0022] The liquid storage cylinder with metering function, wherein the liquid storage cylinder with metering function further comprises a base, and the liquid collecting cylinder and the functional box are fixedly arranged on the base;

[0023] A plurality of universal wheels are provided on the side of the base facing away from the liquid collecting cylinder;

[0024] A handle is provided on one side of the function box.

[0025] The liquid storage cylinder with metering function is provided with an electronic drain valve on one side of the base, and the electronic drain valve is connected to the liquid collection cylinder through a hose and is connected to the control panel circuit.

[0026] A surgical auxiliary instrument, wherein the surgical auxiliary instrument includes the above-mentioned liquid storage cylinder with a metering function.

[0027] The beneficial effects of the present invention are as follows: by obtaining the volume and weight of the mixed liquid in the liquid collection cylinder, combining the density of the perfusion fluid and the density of human blood, the present invention can calculate the volume of blood in the mixed liquid and the volume of the perfusion fluid, and display them to medical staff through a display, so that medical staff can obtain more accurate physiological data information to achieve a more accurate calculation of the patient's condition. The present invention is easy to use, can record the fluid exchange parameters during the operation, and effectively improve the accuracy of the patient's condition assessment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the liquid storage cylinder with a metering function of the present invention.

[0029] exist Figure 1 Middle: 100, liquid collecting cylinder; 110, observation wall; 111, identification part; 120, scale body; 200, function box; 210, control panel; 220, display; 230, handle; 300, base; 310, electronic drain valve; 320, universal wheel; 410, liquid guide part; 411, first installation part; 412, guide plate; 420, cover body; 421, second installation part; 422, top plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] In the prior art, a common practice is to place a bucket under the operating table to collect liquids, such as the distension fluid measuring bucket used in hysteroscopic surgery disclosed in CN220649674U. Since blood and liquid medicine are miscible and have different densities, medical staff can only estimate the amount of blood based on the amount used and recovered, and roughly infer the patient's condition based on experience. Without accurate data reference, it is impossible to accurately know the perfusion fluid difference and the patient's bleeding volume.

[0034] Based on the above problems in the prior art, the present invention provides a liquid storage cylinder with a metering function, such as Figure 1 As shown, the liquid storage cylinder with metering function includes: a liquid collecting cylinder 100, a liquid level sensor is provided on the inner side wall of the liquid collecting cylinder 100 along the height direction, and a scale body 120 is provided at the bottom of the liquid collecting cylinder 100; a functional box 200, the functional box 200 is provided on one side of the liquid collecting cylinder 100, a control panel 210 and a display 220 are provided on the outside of the functional box 200, and a processor is provided inside the functional box 200, the processor is electrically connected to the liquid level sensor and the scale body 120, and is circuit-connected to the control panel 210 and the display 220; the processor is used to calculate the volume of the perfusate and blood according to the liquid level height measured by the liquid level sensor and the liquid weight weighed by the scale body 120, and the density of the perfusate and blood.

[0035] The present invention obtains the volume and weight of the mixed liquid in the liquid collecting barrel 100, combines the density of the perfusate and the density of human blood, and can infer the volume of blood in the mixed liquid and the volume of the perfusate, and displays them to medical staff through the display 220, so that medical staff can obtain more accurate physiological data information to achieve a more accurate calculation of the patient's condition. The present invention is easy to use and can record the fluid exchange parameters during the operation, effectively improving the accuracy of the patient's condition assessment.

[0036] In the above embodiment, if Figure 1 As shown, the main body of the liquid storage cylinder with a metering function of the present invention is composed of a liquid collecting cylinder 100 and a functional box 200, wherein a liquid level sensor is provided on the inner side wall of the liquid collecting cylinder 100 along the height direction, for detecting the liquid level height of the mixed liquid collected in the liquid collecting cylinder 100, thereby obtaining the volume of the collected mixed liquid, and a scale body 120 is provided at the bottom of the liquid collecting cylinder 100, for detecting the weight of the mixed liquid collected in the liquid collecting cylinder 100. The functional box 200 is arranged on one side of the liquid collecting cylinder 100, and a control panel 210 and a display 220 are arranged on the outside of the functional box 200. A processor is arranged inside the functional box 200, and the processor is electrically connected to the liquid level sensor and the scale body 120, and is electrically connected to the control panel 210 and the display 220. In actual use, by obtaining the volume and weight of the mixed liquid and combining the density of the perfusate and blood, the volume of the blood in the mixed liquid can be calculated, and then the volume of the perfusate can be calculated, so as to achieve the effect of recording the actual data of the blood and perfusate.

[0037] In this embodiment, the actual amount of perfusion fluid used can be input through the control panel 210, so that the perfusion difference is calculated based on the volume of the collected perfusion fluid. The perfusion difference data, blood data, perfusion fluid data and other related data can be directly displayed on the display 220, thereby facilitating medical personnel to directly obtain accurate data.

[0038] In practice, since some perfusate and blood may remain on the operating table without flowing into the collection cartridge 100, and since the shape of the operating table is fixed, the volume of this mixed fluid should be constant. When using a metering reservoir, medical personnel can input the constant value of this lost mixed fluid, obtained through repeated experiments, into the control panel 210, thereby combining relevant data to more accurately record specific data. For example, since blood and perfusate can mix, by incorporating the volume of the mixed fluid not collected on the operating table into the volume of the collected mixed fluid, the amount of blood and perfusate in the uncollected mixed fluid can be calculated based on the ratio of blood to perfusate in the collected mixed fluid volume. This can further improve the accuracy of data recording and facilitate medical personnel to estimate the patient's surgical condition.

[0039] Specifically, the above-mentioned processor includes an acquisition module, an information module and a calculation module, wherein the acquisition module is used to obtain the liquid level measured by the liquid level sensor and the liquid weight measured by the scale body 120; the information module is used to store commonly used data, such as the density of the perfusion fluid and the density of the blood; the calculation module is used to combine the above-mentioned various data and preset formulas to calculate the volume of the perfusion fluid and blood.

[0040] The preset formula is: m 总 =ρ 药液 *(V 总 -V 血液 )+ρ 血液 *V 血液 ;

[0041] By using this preset formula, the blood volume V can be calculated 血液 The specific data of the perfusion fluid can be used to calculate the volume of the perfusion fluid. The calculation formula is: V 药液 =V 总 -V 血液 .

[0042] The specific calculation process of the above formula is explained below with a specific example:

[0043] Assume that the bottom area S of the inner liner of the liquid storage tank is 10 square decimeters (i.e. 10 dm2), the density of the liquid medicine ρliquid is 1.02 grams per cubic centimeter (i.e. 1.02 g / cm3), and the density of blood ρblood is 1.06 grams per cubic centimeter (i.e. 1.06 g / cm3).

[0044] Situation 1: There is only liquid medicine in the storage tank;

[0045] It is known that the liquid level height h1 measured by the liquid level sensor is 0.5 meters (i.e. 50 cm).

[0046] Calculation of the volume of the liquid medicine: V 药液 =S·h1=10dm2×50cm.

[0047] Since 1dm2=100cm2, so 10dm2=1000cm2,

[0048] Then V 药液 =1000cm2×50cm=50000cm3.

[0049] Calculation of the mass of the liquid medicine:

[0050] m 药液 =ρ 药液 ·V 药液 =1.02g / cm3×50000cm3=51000g, or 51 kilograms.

[0051] Mass of blood: There is no blood in the storage tank at this time, mblood = 0.

[0052] Case 2: The liquid storage tank contains a mixture of blood and liquid medicine;

[0053] Known: The total mass of the mixed fertilizer liquid m 总 The weight measured by the scale body 120 is 52000 grams (ie 52 kilograms), and the actual liquid level height h2 measured by the liquid level sensor is 0.51 meters (ie 51 cm).

[0054] Calculation of the volume of the mixed liquid: Vtotal = S·h2 = 1000cm2×51cm=51000cm3.

[0055] Calculation of liquid volume: According to the formula V 药液 =V 总 -V 血液 , but the blood volume V is not known at this time 血液 , but we can use the mass formula m 总 =m 药液 +m 血液 , that is, m 总 =ρ 药液 *V 药液 +ρ 血液 *V 血液 .

[0056] V 药液 =V 总 -V 血液 Substituting into the mass formula:

[0057] m 总 =ρ 药液 *(V 总- V 血液 )+ρ 血液 *V 血液 ;

[0058] 52000\text{g}=1.02\text{g / cm}^3\times(51000\text{cm}^3-V_{\text{blood}})+1.06\text{g / cm}^3\times V_{\{textblood}};

[0059] Expand calculation: 52000 = 1.02 × 51000 - 1.02 × V 血液 +1.06×V 血液 ;

[0060] 52000=51912+0.04×V 血液 ;

[0061] The solution is: 0.04×V 血液=52000-51912=88;

[0062] V 血液 =88 / 0.04=2200cm3, or 2.2 liters.

[0063] Blood mass calculation: m 血液 =ρ 血液 ·V 血液 =1.06g / cm3×2200cm3=2332g, or 2.332 kilograms.

[0064] Calculation of liquid medicine mass: m 药液 =m 总 -m 血液 =52000g-2332g=49668g, that is, 49.668 kilograms.

[0065] Displaying the above calculation results on the display 220 can provide relatively accurate data assistance, making it easier for medical staff to intuitively obtain relevant data and make inferences about the actual condition of the patient.

[0066] In another embodiment of the present invention, Figure 1 As shown, the above-mentioned liquid collecting barrel 100 includes an observation wall 110, which is arranged on one side of the liquid collecting barrel 100 and is made of transparent material. The side of the observation wall 110 is tightly connected with the corresponding side wall of the liquid collecting barrel 100 to form a water-tight cylinder structure. Medical staff can directly observe the liquid level of the internal mixed liquid of the liquid collecting barrel 100 through the observation wall 110, so as to monitor the situation of the mixed liquid collected during the operation in real time and avoid the situation that the volume of the mixed liquid exceeds the collection limit of the liquid collecting barrel 100.

[0067] Furthermore, a number of marking portions 111 are provided on the observation wall 110 along the height direction of the liquid collecting barrel 100. These marking portions 111 are marked with different scales or colors for quickly identifying the volume range of the liquid in the liquid collecting barrel 100. In actual use, medical staff can manually calculate the volume of the mixed liquid in the liquid collecting barrel 100 through the marking portions 111 and compare it with the actual data displayed on the display 220 to verify whether the liquid storage barrel with a metering function is working properly. On the other hand, if the data does not correspond, calibration can be performed through the control panel 210. In some emergency situations, even if it is not possible to immediately obtain an accurate reading through an electronic device, medical staff can still make a rough estimate of the volume of the liquid based on the marking portions 111 to ensure the smooth progress of the operation.

[0068] Furthermore, the shape and size of the cross-sections at different heights within the liquid collecting cylinder 100 remain consistent. This feature ensures the accuracy of the liquid level sensor's measurements at different liquid levels and avoids measurement errors caused by changes in the shape of the liquid collecting cylinder 100. This design also facilitates cleaning and maintenance within the liquid collecting cylinder 100 by medical personnel, ensuring the long-term stable operation of the device.

[0069] In another embodiment of the present invention, Figure 1 As shown, a liquid guide 410 is detachably provided at the opening of the liquid collecting barrel 100. The liquid guide 410 includes a first mounting portion 411 adapted to the opening of the liquid collecting barrel 100 and a guide plate 412. The guide plate 412 extends outward from the first mounting portion 411 and is tilted. The liquid guide 410 is shaped like a funnel, which helps guide the liquid to flow smoothly into the liquid collecting barrel 100 and prevents the liquid from splashing or accumulating at the opening of the liquid collecting barrel 100. In actual configuration, the guide plate 412 on the liquid guide 410 is eccentrically disposed, i.e., the size of the guide plate 412 on one side is larger than that of the guide plate 412 on the other side. The advantage of this configuration is that the liquid storage barrel with a metering function can be placed as close as possible to the side of the operating table and can ensure accurate collection of the mixed liquid.

[0070] During the specific setting, the length of the guide plate 412 on the side corresponding to the functional box 200 should be set to be able to cover the functional box 200 to prevent the mixed liquid from splashing onto the functional box 200 and affecting the normal operation of the electronic components in the functional box 200.

[0071] Furthermore, a cover 420 is provided at the opening of the liquid collecting barrel 100, and the cover 420 is detachably connected to the liquid collecting barrel 100 via a second mounting portion 421. After the operation is completed, the cover 420 can be covered on the opening of the liquid collecting barrel 100 to prevent the mixed liquid in the liquid collecting barrel 100 from volatilizing, and also to prevent the mixed liquid in the liquid collecting barrel 100 from splashing and contaminating the outside world, thereby ensuring the cleanliness of the liquid storage barrel and the safety of subsequent use. The cover 420 is specifically composed of a second mounting portion 421 and a top plate 422 that are tightly connected. After the second mounting portion 421 is buckled on the top of the liquid collecting barrel 100, the top plate 422 is buckled on the upper opening of the liquid collecting barrel 100, which can effectively achieve a shielding effect.

[0072] In another embodiment of the present invention, Figure 1As shown, the liquid storage cylinder with a metering function also includes a base 300. The above-mentioned liquid collection cylinder 100 and the functional box 200 are fixedly arranged on the base 300, so that the liquid collection cylinder 100 and the functional box 200 form a fixedly connected whole with the base 300. In order to facilitate medical staff to move the liquid storage cylinder with a metering function, in this embodiment, a plurality of universal wheels 320 are further provided on the side of the base 300 away from the liquid collection cylinder 100. The plurality of universal wheels 320 support the base 300 and are convenient for movement. In order to make it easier for medical staff to operate, a handle 230 is further provided on one side of the above-mentioned functional box 200. Medical staff can move the liquid storage cylinder with a metering function by holding the handle 230, thereby pushing the liquid storage cylinder with a metering function.

[0073] In another embodiment of the present invention, Figure 1 As shown, in order to facilitate medical staff to handle the mixed liquid collected in the liquid collecting cylinder 100, and to clean and disinfect the liquid collecting cylinder 100, a drain valve is further provided on one side of the base 300 in this embodiment. The drain valve is specifically an electronic drain valve 310. The electronic drain valve 310 is connected to the liquid collecting cylinder 100 through a hose to discharge the liquid inside the liquid collecting cylinder 100. In actual setting, the position of the hose is set to avoid the scale body 120 to prevent affecting the weighing function of the scale body 120.

[0074] During actual setting, the electronic drain valve 310 is connected to the control panel 210 through a circuit, so that the state of the electronic drain valve 310 can be controlled by the buttons on the control panel 210. During actual use, medical staff can switch the open and closed states of the electronic drain valve 310 by pressing the buttons on the control panel 210, thereby facilitating processing. During specific setting, the button for controlling the electronic drain valve 310 should be protected against accidental touches, for example, it can be set to a long press or assembly operation to avoid accidental discharge of the mixed liquid due to accidental touch.

[0075] Based on the above embodiment, the actual use process of the present invention is as follows:

[0076] First, the medical staff places the metering reservoir near the operating table, uses the universal wheels 320 to push it to the appropriate position, and fine-tunes it using the handle 230 to ensure that the reservoir 100 accurately receives the mixed fluid produced during the operation. The medical staff then uses the control panel 210 to input the expected amount of perfusate used during the operation, as well as the fixed value of the mixed fluid on the operating table that has not flowed into the reservoir 100, which has been determined through repeated trials.

[0077] During surgery, as the mixed liquid continues to flow into the collection cylinder 100, the liquid level sensor monitors the liquid level in real time and transmits the data to the processor. Simultaneously, the scale 120 measures the weight of the mixed liquid within the collection cylinder 100 in real time and transmits this data to the processor. Based on the received liquid level, liquid weight, perfusate density, blood density, and a pre-set formula, the processor calculates and updates the blood volume in the mixed liquid and the perfusate volume in real time.

[0078] Medical staff can view these data in real time on the display 220, thereby accurately understanding the patient's bleeding volume and the use of perfusion fluid. After the operation, medical staff can operate the electronic drain valve 310 through the control panel 210 to drain the mixed liquid in the collection cylinder 100 so that the collection cylinder 100 can be cleaned and disinfected.

[0079] Furthermore, because the observation wall 110 of the liquid collection barrel 100 is made of a transparent material and is provided with an identification portion 111, medical personnel can directly observe the liquid level of the mixed liquid inside the liquid collection barrel 100 through the observation wall 110 and quickly identify the volume range of the liquid through the identification portion 111. This design not only improves the reliability and accuracy of the device, but also provides medical personnel with a more convenient and intuitive operating experience.

[0080] Based on the above embodiments, the present invention also provides a surgical auxiliary instrument, which includes a liquid storage cylinder with a metering function as described in any one of the above embodiments, and the liquid storage cylinder with a metering function includes: a liquid collecting cylinder, a liquid level sensor is provided on the inner wall of the liquid collecting cylinder along the height direction, and a scale body is provided at the bottom of the liquid collecting cylinder; a functional box, the functional box is provided on one side of the liquid collecting cylinder, a control panel and a display are provided on the outside of the functional box, and a processor is provided inside the functional box, the processor is connected to the liquid level sensor and the scale body electrical signal, and is connected to the control panel and display circuit; the processor is used to calculate the volume of the perfusion fluid and blood based on the liquid level height measured by the liquid level sensor and the liquid weight weighed by the scale body, and the density of the perfusion fluid and blood. The present invention obtains the volume and weight of the mixed liquid in the liquid collection cylinder, combines the density of the perfusion fluid and the density of human blood, and can calculate the volume of blood in the mixed liquid and the volume of the perfusion fluid, and display them to medical staff through a display, so that medical staff can obtain more accurate physiological data information to achieve a more accurate calculation of the patient's condition. The present invention is easy to use and can record the fluid exchange parameters during the operation, effectively improving the accuracy of the patient's condition assessment.

[0081] In summary, the present invention provides a liquid storage cylinder with a metering function and a surgical auxiliary instrument, wherein the liquid storage cylinder with a metering function comprises: a liquid collection cylinder, a liquid level sensor is provided on the inner side wall of the liquid collection cylinder along the height direction, and a scale is provided at the bottom of the liquid collection cylinder; a function box is provided on one side of the liquid collection cylinder, a control panel and a display are provided on the outside of the function box, and a processor is provided inside the function box, the processor is electrically connected to the liquid level sensor and the scale, and is electrically connected to the control panel and the display; the processor is used to calculate the volume of the perfusate and blood based on the liquid level height measured by the liquid level sensor and the liquid weight measured by the scale, and the density of the perfusate and blood. The present invention obtains the volume and weight of the mixed liquid in the liquid collection cylinder, combines the density of the perfusate and the density of human blood, and can calculate the volume of the blood in the mixed liquid and the volume of the perfusate, and display it to medical staff through a display, so that medical staff can obtain more accurate physiological data information to achieve a more accurate estimation of the patient's condition. The present invention is simple to use and can record fluid exchange parameters during surgery, effectively improving the accuracy of patient status assessment.

[0082] It should be understood that the application of the present invention is not limited to the above examples. For those skilled in the art, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A liquid storage cylinder with a metering function, characterized in that: The liquid storage cylinder with metering function comprises: A liquid collecting cylinder, wherein a liquid level sensor is provided on the inner side wall of the liquid collecting cylinder along the height direction, and a scale body is provided at the bottom of the liquid collecting cylinder; A functional box is provided on one side of the liquid collecting cylinder, a control panel and a display are provided on the outside of the functional box, and a processor is provided inside the functional box. The processor is electrically connected to the liquid level sensor and the scale body, and is circuitally connected to the control panel and the display; the processor is used to calculate the volume of the perfusion fluid and blood based on the liquid level height measured by the liquid level sensor, the liquid weight weighed by the scale body, and the density of the perfusion fluid and blood.

2. The liquid storage cylinder with metering function according to claim 1, characterized in that: The processor includes: an acquisition module, the acquisition module being used to acquire the liquid level measured by the liquid level sensor and the liquid weight measured by the scale; an information module, the information module being used to store the densities of the perfusate and the blood; a calculation module, configured to calculate the volumes of the perfusate and blood according to a preset formula; The preset formula is: m 总 =ρ 药液 *(V 总 -V 血液 )+ρ 血液 *V 血液 ; The formula for calculating the perfusion fluid volume is: V 药液 =V 总 -V 血液 .

3. The liquid storage cylinder with metering function according to claim 1, characterized in that: The liquid collecting cylinder comprises an observation wall, which is a transparent observation wall, and the side edges of the observation wall are tightly connected to the corresponding side walls of the liquid collecting cylinder.

4. The liquid storage cylinder with metering function according to claim 3, characterized in that: A plurality of marking parts are provided on the observation wall along the height direction of the liquid collecting cylinder, and the plurality of marking parts are used to mark the volume of the liquid in the liquid collecting cylinder.

5. The liquid storage cylinder with metering function according to claim 1, characterized in that: The cross sections at different heights in the liquid collecting cylinder have the same shape and size.

6. The liquid storage cylinder with metering function according to claim 1, characterized in that: The opening of the liquid collecting cylinder is detachably provided with a liquid guiding part, which includes a first mounting portion that fits snugly with the opening of the liquid collecting cylinder, and a guide plate tightly connected to the first mounting portion. The guide plate extends outward from the first mounting portion and is inclined at a predetermined angle.

7. The liquid storage cylinder with metering function according to claim 6, characterized in that: The opening of the liquid collecting cylinder is detachably provided with a cover body, and the cover body comprises a second mounting portion and a top plate tightly arranged on one side of the second mounting portion.

8. The liquid storage cylinder with metering function according to claim 1, characterized in that: The liquid storage cylinder with metering function further comprises a base, and the liquid collection cylinder and the functional box are fixedly arranged on the base; A plurality of universal wheels are provided on the side of the base facing away from the liquid collecting cylinder; A handle is provided on one side of the function box.

9. The liquid storage cylinder with metering function according to claim 8, characterized in that: An electronic drain valve is provided on one side of the base. The electronic drain valve is connected to the liquid collecting cylinder through a hose and is connected to the control panel circuit.

10. A surgical assisting instrument, characterized in that: The surgical auxiliary instrument includes the liquid storage cartridge with metering function as described in any one of claims 1 to 9.

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