CN114973837A

CN114973837A - Training simulator for suturing of nephrectomy blood vessel under laparoscope

Info

Publication number: CN114973837A
Application number: CN202210759081.8A
Authority: CN
Inventors: 邝世航; 徐斯君
Original assignee: LONGGANG DISTRICT CENTRAL HOSPITAL OF SHENZHEN
Current assignee: LONGGANG DISTRICT CENTRAL HOSPITAL OF SHENZHEN
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-08-30

Abstract

The invention discloses a laparoscopic nephrectomy blood vessel suturing training simulator, and relates to the technical field of medical simulation. The invention comprises a simulation box, wherein a wrapping film is arranged in the simulation box, a simulation kidney is arranged in the wrapping film, a simulation blood vessel is arranged in the simulation kidney, a heating box is arranged on one side of the simulation box, an abdominal pressure device corresponding to the simulation box is arranged in the heating box, a blood collection box is arranged on the lower side of the simulation box, a simulation blood circulation component and an outflow blood purification component are arranged in the blood collection box, and the simulation blood circulation component is communicated with the outflow blood purification component. The simulated blood in the blood storage box is pumped out by the second water pump, then the simulated blood is pumped into the first water pipe by the second water pump so as to flow into the simulated kidney, and then flows back into the blood storage box through the second water pipe, so that the blood circulation in a human body can be simulated, the blood generation condition can be simulated when the simulated kidney is cut, and a good simulated operation effect is achieved.

Description

Training simulator for suturing of nephrectomy blood vessel under laparoscope

Technical Field

The invention belongs to the technical field of medical simulation, and particularly relates to a laparoscopic nephrectomy blood vessel suturing training simulator.

Background

Renal injury is classified into two types, open and closed. Open injuries are common in wartime, and closed injuries are most commonly seen in traffic accidents and industrial accidents. Renal injury can often be complicated by trauma to the thoraco-abdominal viscera and other sites, particularly open injury, with concurrent diagnosis and treatment and choice of renal repair or nephrectomy combined with the level of renal injury.

A doctor is an occupation that requires a great deal of clinical experience. The safety and difficulty of laparoscopic partial nephrectomy is mainly due to the skilled suture hemostasis technique, which can directly affect the efficiency and quality of the surgery.

However, the prior laparoscopic surgery training device is mainly based on module training, namely, a body surface of a training manikin is provided with a lens implanting channel, and corresponding organs are arranged at corresponding positions in an abdominal cavity. The training is mainly carried out with visual angle, stripping and sewing training. However, the real intra-abdominal environment is greatly different from the intra-abdominal environment of the training model, for example, the laparoscopic surgery is accompanied by a tissue bleeding state, the flushing and the suction are usually performed under the condition of ensuring pneumoperitoneum pressure, and the suturing operation is performed in the environment, so that the actual operation difficulty is much higher than the operation difficulty of the common model training. In addition, although the animal living body can be well trained, the cost is high, the repeatability is poor, and the long-term repeated training and use are not facilitated, so that the laparoscopic nephrectomy vascular suture training simulator is designed.

Disclosure of Invention

The invention aims to provide a laparoscopic nephrectomy blood vessel suturing training simulator, which solves the problem that the existing laparoscopic nephrectomy operation only adopts a traditional basic training module and cannot simulate the operation requirement of suturing in a hemorrhagic environment after nephrectomy.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a training simulator is sewed up to nephrectomy blood vessel under peritoneoscope, including the simulation case, be equipped with the parcel membrane in the simulation case, the emulation kidney has been installed to the parcel membrane, be equipped with the emulation blood vessel in the emulation kidney, the heating cabinet has been installed to simulation case one side, the heating cabinet installs the abdominal pressure device that corresponds with the simulation case, blood collection case has been installed to simulation case downside, blood collection incasement is equipped with simulation blood circulation subassembly and outflow blood purification subassembly, and simulation blood circulation subassembly and outflow blood purification subassembly are linked together, simulation blood circulation subassembly corresponds with the emulation kidney, the heating cabinet installs water bath heater and washing subassembly in, and water bath heater and simulation blood circulation subassembly correspond, it corresponds with the simulation case to wash the subassembly, outflow blood purification subassembly and simulation are installed first water pump between the case.

Optionally, the simulated blood circulation assembly comprises a blood pumping box arranged in the blood collection box, a blood storage box and a second water pump are arranged in the blood pumping box, a water inlet of the second water pump is located at the bottom of the blood storage box, a water outlet of the second water pump is fixed with a first water pipe, one end of the first water pipe is fixed with one end of the simulated blood vessel, and a second water pipe is fixed between the blood storage box and the other end of the simulated blood vessel.

Optionally, the bottom of simulation case is the funnel structure, and the apopore has been seted up to the bottom of funnel structure, has installed first water pump between outflow blood purification subassembly and the apopore, and the water inlet of first water pump is fixed with the third water pipe of one end and apopore sealing connection, and the built-in first sterilizer that is equipped with of outflow blood purification subassembly, first sterilizer is fixed with the delivery port of first water pump.

Through adopting above technical scheme, funnel structure and first water pump can collect the class to the incasement that stews with the simulation blood that flows out when carrying out the simulation suture in the simulation incasement, are favorable to the recycle to simulation blood.

Optionally, outflow blood purification subassembly is including installing the case that stews in blood collection box, and first sterilizer is located the incasement that stews, and two door openings have been seted up to the side of the case that stews, have all installed the electrically operated gate in two door openings, and the wavelength detector has been installed to one of them door opening upside, and the wavelength detector is connected with two electrically operated gates electricity, and has installed the fourth water pipe between one of them door opening and the blood storage box, and the built-in fifth water pipe that is equipped with of another door opening, and the one end of fifth water pipe is located the blood collection box outside.

Through adopting above technical scheme, the wavelength detector detects the wavelength of the liquid of the incasement that stews, then the control switch electrically operated gate is favorable to will simulate blood and other liquid separation.

Optionally, a second sterilizer is installed at one end of the second water pipe close to the blood storage tank, and one end of the second water pipe close to the blood storage tank is located at the top in the blood storage tank.

Through adopting above technical scheme, the second sterilizer disinfects the simulation blood that the second water pipe flows to in the blood storage tank, can reduce the bacterium residue in the simulation blood, prolongs the live time of simulation blood.

Optionally, the ball valve is fixed to the one end that first water pipe is close to emulation kidney, rotatory fixed block has all been installed between first water pipe and second water pipe and the emulation blood vessel, through rotatory ball valve, can control the velocity of flow of simulation blood, be equipped with the thread groove in the rotatory fixed block, the one end that first water pipe is close to emulation kidney and the one end that the second water pipe is close to emulation kidney are helicitic texture, the vascular both ends of emulation all are fixed with a plurality of stoppers, helicitic texture and thread groove screw-thread fit, the stopper is corresponding with rotatory fixed block.

Through adopting above technical scheme, screw up or loosen rotatory fixed block, can convenient and fast change emulation kidney.

Optionally, the water bath heater is including installing water tank and the controller in the heating cabinet, be fixed in the heating rod of controller output, and the heating rod is located the water tank, through the temperature that generates heat of controller regulation and control heating rod, can make the book in the water tank keep invariable, washs the subassembly including installing third water pump, the water sprayhead that normal running fit in the delivery port of third water pump in the heating cabinet, and the water inlet of third water pump is located the heating cabinet outside, and the water sprayhead is located the simulation incasement.

Through adopting above technical scheme, third water pump water, then sprinkle through the sprinkler bead, can wash the simulation incasement.

Optionally, the abdominal pressure device includes a gas pumping machine installed in the heating box, and a gas outlet of the gas pumping machine is located in the wrapping film.

The embodiment of the invention has the following beneficial effects:

according to one embodiment of the invention, the simulated blood in the blood storage tank is pumped out by the second water pump, then the simulated blood is pumped into the first water pipe by the second water pump so as to flow into the simulated kidney, and then flows back into the blood storage tank through the second water pipe, so that the blood circulation in a human body can be simulated, meanwhile, the simulated kidney can be cut, the bleeding condition can be simulated, a good simulated operation effect is achieved, the simulated blood flowing out when the simulated kidney is cut is collected by the standing tank, then standing and layering are carried out, the simulated blood can be recycled, the waste of the simulated blood is reduced, the cost is reduced, the simulated blood is heated by the water bath heater, the simulated blood can be heated to 37 ℃, the simulated authenticity can be improved, and the simulation effect is increased.

Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages at the same time.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of an integrally assembled perspective structure of a training simulator in accordance with the present invention;

FIG. 2 is a schematic diagram of an overall assembled cross-sectional structure of the training simulator of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the structure at B in FIG. 2;

FIG. 5 is a sectional view of a water bath heater according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of an assembled simulated blood vessel according to an embodiment of the present invention;

FIG. 7 is a flow chart of a simulated blood according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

the blood circulation simulation device comprises a simulation box 1, a simulation kidney 101, gauze 102, a heating box 2, a water bath heater 201, a water tank 202, a heating rod 203, a controller 204, a third water pump 3, a water spray head 301, a blood collection box 4, a blood pumping box 401, a second water pump 402, a blood storage box 403, a second sterilizer 404, a standing box 501, a first sterilizer 502, a wavelength detector 503, an electric door 504, a third water pipe 505, a first water pipe 601, a second water pipe 602, a fourth water pipe 603, a fifth water pipe 604, a ball valve 701, a rotary fixing block 702, a limiting block 703, a simulation blood vessel 801, a simulation blood circulation component 901, an outflow blood purification component 902, a first water pump 903, a wrapping film 904 and a pump air machine 905.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

Referring to fig. 1 to 7, in the present embodiment, there is provided a training simulator for laparoscopic nephrectomy vascular suture, including: the simulation box 1, a wrapping film 904 is arranged in the simulation box 1, a simulation kidney 101 is arranged in the wrapping film 904, a simulation blood vessel 801 is arranged in the simulation kidney 101, a heating box 2 is arranged at one side of the simulation box 1, an abdominal pressure device corresponding to the simulation box 1 is arranged in the heating box 2, a blood collecting box 4 is arranged at the lower side of the simulation box 1, a simulation blood circulation component 901 and an outflow blood purification component 902 are arranged in the blood collecting box 4, the simulation blood circulation component 901 is communicated with the outflow blood purification component 902, the simulation blood circulation component 901 corresponds to the simulation kidney 101, a water bath heater 201 and a cleaning component are arranged in the heating box 2, the water bath heater 201 corresponds to the simulation blood circulation component 901, the cleaning component corresponds to the simulation box 1, a first water pump 903 is arranged between the outflow blood purification component 902 and the simulation box 1, wherein the simulation kidney 101 can be the kidney of various animals, fascia and ligaments are connected between the wrapping film 904 and the simulated kidney 101.

Specifically, the method comprises the following steps: when a simulated laparoscopic nephrectomy vascular suture is required, the simulated blood circulation assembly 901 is first activated so that the simulated blood circulation assembly 901 begins circulating simulated blood, the simulated blood circulation assembly 901 delivering the simulated blood into the simulated blood vessel 801 within the simulated kidney 101.

Then to wrapping up in the membrane 904 incision, set up three art mouth, first art mouth is used for the cutting operation, and the visual unit of speculum is implanted to the second opening, and the third mouth is that the mouth is implanted to attraction and flusher, starts the abdominal pressure device, fills carbon dioxide into in wrapping up in the membrane 904 for wrapping up in the membrane 904 diastole, the inside space grow of wrapping up in membrane 904, thereby make wrapping up in membrane 904 and emulation kidney 101 separation, thereby can improve the field of vision and the operation space of operation.

Then the perirenal fat of the simulated kidney 101 is dissected under the monitoring guidance of the laparoscope, the kidney body of the simulated kidney 101 is found after the adipose tissue is removed, the renal artery and vein are found at the back side of the kidney body, and the renal artery and vein are ligated by using special lock catches and forceps under the laparoscope.

After the blood vessel is ligated, the wrapping film 904 and the artificial kidney 101 can be cut and separated by a broad-leaved axe, and fascia and ligaments connected between the wrapping film 904 and the artificial kidney 101 can be removed, so that the kidney can be completely dissociated.

A 4-5cm long incision is made in the cover 904 and the kidney specimen is removed from the incision intact and the incision is closed after examination of the surgical field for the absence of secondary bleeding and oozing.

At this time, since the simulated kidney 101 is cut, the simulated blood vessel 801 in the simulated kidney 101 is ruptured, and the simulated blood in the simulated blood vessel 801 flows out. The simulated blood flows into the simulation chamber 1.

Meanwhile, when cutting, the suction and flushing device can cool heat generated by laser, plasma or ultrasonic electrotomy and can flush wounds; the suction may draw the blood and the rinsing fluid out of the body using a negative pressure device.

When the cutting and suturing training is performed, the first water pump 903 is started to pump the simulated blood into the simulated kidney 101 all the time, so that the blood outflow during the cutting simulation is simulated.

Then the flowing simulated blood flows into the outflow blood purification assembly 902 from the simulation box 1, the outflow blood purification assembly 902 performs disinfection, purification and standing purification on the simulated blood, and then the outflow blood purification assembly 902 sends the purified simulated blood to the simulated blood circulation assembly 901 for subsequent simulated blood circulation. It should be noted that all the electric devices involved in the present invention can be powered by a storage battery or an external power source.

Particularly, when suturing, the first operation opening and the third operation opening are generally utilized for operating and suturing, two channels equivalently enter two hands to repeatedly guide and knot, the second operation opening is generally still used for monitoring, the operation is finally completed, and meanwhile, because the simulated blood vessel 801 of the cutting surface is broken, the simulated blood pumped out by the first water pump 903 flows out, so that the condition that the cutting surface of the kidney bleeds when suturing in a human body can be simulated, and the training effect of the suturing training simulator can be improved.

In order to meet the above technical requirements, the simulated blood circulation module 901 comprises a blood pumping box 401 installed in the blood collection box 4, a blood storage box 403 and a second water pump 402 are installed in the blood pumping box 401, a water inlet of the second water pump 402 is located at the bottom of the blood storage box 403, a water outlet of the second water pump 402 is fixed with a first water pipe 601, one end of the first water pipe 601 is fixed with one end of the simulated blood vessel 801, and a second water pipe 602 is fixed between the blood storage box 403 and the other end of the simulated blood vessel 801.

When the simulated blood needs to be circulated, the second water pump 402 is started firstly, so that the water inlet of the second water pump 402 extracts the simulated blood from the bottom in the blood storage tank 403, the simulated blood is extracted from the blood storage tank 403 by the second water pump 402 and enters the first water pipe 601, then flows through the heating tank 2, the simulated blood in the first water pipe 601 is heated to 37 ℃ by the water bath heater 201 in the heating tank 2, the temperature of the 37 ℃ is close to the temperature of the human blood, the authenticity of the simulated suture can be improved, then the simulated blood flows into the simulated blood vessel 801 in the simulated kidney 101, the simulated blood flows into the second water pipe 602 from the simulated blood vessel 801, then the simulated blood flows into the blood collection tank 4 from the second water pipe 602, so that the circulation effect is achieved, and meanwhile, when the simulated kidney 101 is cut and sutured, the simulated blood flowing out from the simulated kidney 101 enters the simulation tank 1 and then flows into the standing tank 501, the static tank 501 performs static filtration on the simulated blood, and then the filtered simulated blood flows into the blood storage tank 403 for subsequent use.

Thus, after the artificial kidney 101 is cut, the cut surface can be made bloody.

In particular, when the simulation is finished, the inside of the simulation tank 1 needs to be cleaned.

In order to meet the technical requirements, the cleaning assembly comprises a third water pump 3 arranged in the heating box 2, a sprinkler head 301 in rotation fit with a water outlet of the third water pump 3, a water inlet of the third water pump 3 is positioned outside the heating box 2, the sprinkler head 301 is positioned in the simulation box 1, when the simulation box 1 needs to be cleaned, the water inlet of the third water pump 3 is firstly connected with a water source, then the third water pump 3 is started, the third water pump 3 extracts water from the water source, then the water is sent to the sprinkler head 301, the water is distributed from the sprinkler head 301, and then the sprinkler head 301 is rotated, so that the simulation box 1 is flushed at multiple angles.

Specifically, in order to simulate the blood flow rate in different human bodies, the blood flow rate in the first water tube 601 needs to be controlled.

In order to meet the technical requirements, a ball valve 701 is fixed at one end of a first water pipe 601 close to a simulated kidney 101, a rotary fixing block 702 is arranged between each of the first water pipe 601, the second water pipe 602 and the simulated blood vessel 801, a thread groove is arranged in each rotary fixing block 702, both one end of the first water pipe 601 close to the simulated kidney 101 and one end of the second water pipe 602 close to the simulated kidney 101 are in threaded structures, a plurality of limiting blocks 703 are fixed at both ends of the simulated blood vessel 801, the threaded structures are in threaded fit with the thread grooves, and the limiting blocks 703 correspond to the rotary fixing blocks 702;

when the second water pump 402 is started, the second water pump 402 pumps the simulated blood into the first water pipe 601, then the ball valve 701 is rotated, thereby controlling the flow rate of the simulated blood, so as to achieve the simulation effect, when the simulated kidney 101 needs to be replaced, the ball valve 701 is firstly closed, then the first water pipe 601 and the second water pipe 602 are screwed, so that the thread structure of one end of the first water pipe 601, which is close to the simulated kidney 101, and the thread structure of one end of the second water pipe 602, which is close to the simulated kidney 101, respectively lose the clamping relation with the thread grooves in the two rotary fixing blocks 702, then the rotary fixing blocks 702 are rotated, so that the rotary fixing blocks 702 move among the plurality of limiting blocks 703, thereby the gap between the first water pipe 601 and the second water pipe 602 is enlarged, thereby the simulated kidney 101 can be conveniently put down, then the new simulated kidney 101 is put between the first water pipe 601 and the second water pipe 602, the rotary fixing blocks 702 are rotated, the thread structure of the first water pipe 601 near the end of the simulated kidney 101 and the thread structure and the thread groove of the second water pipe 602 near the end of the simulated kidney 101 are engaged with each other, so that the thread groove and the thread structure are fixed in a thread manner.

In particular, in order to reduce economic losses, the outflowing simulated blood needs to be recovered.

In order to meet the technical requirements, the outflow blood purification assembly 902 comprises a standing box 501 arranged in the blood collection box 4, the first sterilizer 502 is positioned in the standing box 501, two door openings are formed in the side surface of the standing box 501, electric doors 504 are arranged in the two door openings, a wavelength detector 503 is arranged on the upper side of one door opening, the wavelength detector 503 is electrically connected with the two electric doors 504, a fourth water pipe 603 is arranged between one door opening and the blood storage box 403, a fifth water pipe 604 is arranged in the other door opening, and one end of the fifth water pipe 604 is positioned outside the blood collection box 4;

after the waste simulated blood is stood and layered through the standing box 501, according to the different wavelengths reflected by the liquids with different colors, the wavelength detector 503 controls the electric door 504 to be opened and closed according to the detected wavelengths, if the wavelength detected by the wavelength detector 503 is the same as the wavelength of the high-concentration simulated blood, the wavelength detector 503 transmits a switching signal to a chip inside the electric door 504 close to the fourth water pipe 603, then the chip inside the electric door 504 controls the electric door 504 close to the fourth water pipe 603 to be opened, the stood simulated blood flows into the blood storage box 403 through the fourth water pipe 603 in a door hole, then the wavelength detector 503 selectively opens the electric door 504 close to the fifth water pipe 604 to be opened according to the change of the wavelength, and then other waste liquid flows out of the blood collection box 4 through the fifth water pipe 604.

Example 1: in order to increase the realism of the simulated stitching, the following five examples are proposed:

example 1.1: in this embodiment, the built-in motor and the control chip that is equipped with of simulation case 1, the output and the ball valve 701 of motor are fixed, and when carrying out the simulation and sew up, control chip control motor starts, and the output of motor rotates to the output of motor drives ball valve 701 and rotates, thereby the velocity of flow of intelligent control simulation blood increases simulation effect.

Example 1.2: referring to fig. 2, a gauze 102 is installed in the simulation box 1 of the present embodiment, and the simulated kidney 101 is located on the upper side of the gauze 102, when the simulated kidney 101 needs to be cut, the simulated kidney 101 is placed on the gauze 102, so that the simulated kidney 101 can be well supported, and the situation that the simulated kidney is located in the human body can be simulated.

Example 1.3: referring to fig. 5, the water bath heater 201 of the present embodiment includes a water tank 202 and a controller 204 installed in the heating tank 2, and a heating rod 203 fixed at an output end of the controller 204, wherein the heating rod 203 is located in the water tank 202, when the simulated blood flows into a first water pipe 601 located in the water bath heater 201, the controller 204 controls the heating rod 203 to heat up, and then the heating rod 203 heats the water in the water tank 202, so as to heat the simulated blood in the first water pipe 601.

Example 1.4: referring to fig. 6, the artificial blood vessel 801 of the present embodiment is a bifurcation structure, and the bifurcation structure includes a thick blood vessel and a thin blood vessel, the thick blood vessel penetrates through the artificial kidney 101, the thin blood vessel is distributed inside the artificial kidney 101, when the second water pump 402 pumps the artificial blood, the blood enters the artificial blood vessel 801 from the first water tube 601, the artificial blood enters the thick blood vessel and the thin blood vessel, and the artificial blood is distributed throughout the artificial kidney 101.

Example 1.5: referring to fig. 2, the abdominal pressure device of the present embodiment includes an air pump 905 installed in the heating box 2, and an air outlet of the air pump 905 is located in the wrapping film 904.

When carbon dioxide needs to be simulated and filled into the wrapping film 904 in the simulation box 1, the air pump 905 is started, so that the air pump 905 fills air into the wrapping film 904 from the air outlet of the air pump 905, and the wrapping film 904 is separated from the simulated kidney 101.

Example 2: when the simulated kidney 101 is cut in a simulation manner, the simulated blood vessel 801 is cut, and in order to reduce the waste of the simulated blood, the flowed simulated blood needs to be recovered, so the following embodiment is proposed:

example 2.1: referring to fig. 2, the bottom of the simulation box 1 of the present embodiment is a funnel structure, a water outlet is formed in the bottom of the funnel structure, a first water pump 903 is installed between the purification component 902 for outflow blood and the water outlet, a third water pipe 505 with one end hermetically connected to the water outlet is fixed to a water inlet of the first water pump 903, a first sterilizer 502 is installed in the purification component 902 for outflow blood, and the first sterilizer 502 is fixed to a water outlet of the first water pump 903, wherein the first sterilizer 502 is a water treatment sterilizer in the prior art;

when the simulated blood vessel 801 is cut, the simulated blood in the simulated blood vessel 801 flows into the funnel structure, the simulated blood flows into the water outlet hole through the funnel structure, so that the simulated blood flows into the first sterilizer 502 through the third water pipe 505 in the water outlet hole, the first sterilizer 502 sterilizes the simulated blood, and then the sterilized simulated blood enters the standing box 501, so that the flowed simulated blood can be recycled, and the waste of the simulated blood is reduced.

Example 3: in circulating the dummy blood, the returned dummy blood may be contaminated with bacteria, viruses, etc. in the external environment to contaminate the dummy blood inside the blood storage tank 403, and therefore, two examples are proposed as follows:

example 3.1: referring to fig. 2, in the embodiment, a second sterilizer 404 is installed at an end of the second water pipe 602 close to the blood storage tank 403, and an end of the second water pipe 602 close to the blood storage tank 403 is located at a top portion of the blood storage tank 403, when the simulated blood flows into the blood storage tank 403 through the second water pipe 602, the simulated blood passes through the second sterilizer 404, the second sterilizer 404 is a water treatment sterilizer in the prior art, the water treatment sterilizer sterilizes the simulated blood to reduce bacteria inside the simulated blood, the simulated blood flows to the top portion of the blood storage tank 403, and the simulated blood falls from the top portion of the blood storage tank 403 to the bottom portion of the blood storage tank 403.

Example 3.2: in this embodiment, the blood storage tank 403 is filled with a purifying agent which can sterilize and disinfect the dummy blood, so that the purifying agent can sterilize and disinfect all the blood inside the blood storage tank 403, thereby reducing the residual bacteria or viruses in the energy of the blood storage tank 403.

The above embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims

1. A laparoscopic nephrectomy vascular suture training simulator, comprising: the simulation box comprises a simulation box (1), wherein a wrapping film (904) is arranged in the simulation box (1), a simulation kidney (101) is arranged in the wrapping film (904), a simulation blood vessel (801) is arranged in the simulation kidney (101), a heating box (2) is arranged on one side of the simulation box (1), and an abdominal pressure device corresponding to the simulation box (1) is arranged in the heating box (2);

blood collection box (4) has been installed to simulation case (1) downside, blood collection box (4) are built-in to be equipped with simulation blood circulation subassembly (901) and outflow blood purification subassembly (902), and simulation blood circulation subassembly (901) is linked together with outflow blood purification subassembly (902), simulation blood circulation subassembly (901) corresponds with emulation kidney (101), water bath heater (201) and washing subassembly have been installed to heating cabinet (2) is built-in, and water bath heater (201) correspond with simulation blood circulation subassembly (901), the washing subassembly corresponds with simulation case (1), first water pump (903) have been installed between outflow blood purification subassembly (902) and simulation case (1).

2. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 1, wherein the simulated blood circulation module (901) comprises a blood pumping tank (401) arranged in the blood collecting tank (4), a blood storage tank (403) and a second water pump (402) are arranged in the blood pumping tank (401), a water inlet of the second water pump (402) is positioned at the bottom of the blood storage tank (403), a first water pipe (601) is fixed at a water outlet of the second water pump (402), one end of the first water pipe (601) is fixed with one end of the simulated blood vessel (801), and a second water pipe (602) is fixed between the blood storage tank (403) and the other end of the simulated blood vessel (801).

3. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 2, wherein the bottom of the simulation box (1) is of a funnel structure, the bottom of the funnel structure is provided with a water outlet, a third water pipe (505) with one end hermetically connected with the water outlet is fixed at the water inlet of the first water pump (903), a first sterilizer (502) is arranged in the outflow blood purifying assembly (902), and the first sterilizer (502) is fixed with the water outlet of the first water pump (903).

4. The laparoscopic nephrectomy vascular suture training simulator according to any one of claims 2 to 3, wherein the outflow blood purification assembly (902) comprises a static box (501) installed in the blood collection box (4), the first sterilizer (502) is located in the static box (501), two door openings are opened at the side of the static box (501), electric doors (504) are installed in the two door openings, a wavelength detector (503) is installed at the upper side of one door opening, the wavelength detector (503) is electrically connected with the two electric doors (504), a fourth water pipe (603) is installed between one door opening and the blood storage box (403), a fifth water pipe (604) is installed in the other door opening, and one end of the fifth water pipe (604) is located at the outer side of the blood collection box (4).

5. The laparoscopic nephrectomy vascular suture training simulator according to claim 2, wherein the second sterilizer (404) is installed at an end of the second water tube (602) adjacent to the blood storage tank (403), and an end of the second water tube (602) adjacent to the blood storage tank (403) is located at the top inside the blood storage tank (403).

6. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 2, wherein a ball valve (701) is fixed to one end of the first water pipe (601) close to the simulated kidney (101), and a rotary fixing block (702) is installed between each of the first water pipe (601) and the second water pipe (602) and the simulated blood vessel (801).

7. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 6, wherein a threaded groove is formed in the rotary fixing block (702), one end of the first water pipe (601) close to the simulated kidney (101) and one end of the second water pipe (602) close to the simulated kidney (101) are both in threaded structures, a plurality of limiting blocks (703) are fixed to both ends of the simulated blood vessel (801), the threaded structures are in threaded fit with the threaded groove, and the limiting blocks (703) correspond to the rotary fixing block (702).

8. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 1, wherein the water bath heater (201) comprises a water tank (202) and a controller (204) installed in the heating tank (2), a heating rod (203) fixed to an output end of the controller (204), and the heating rod (203) is located in the water tank (202).

9. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 1, wherein the cleaning assembly comprises a third water pump (3) installed in the heating box (2), and a sprinkler head (301) rotatably fitted to a water outlet of the third water pump (3), and a water inlet of the third water pump (3) is located outside the heating box (2), and the sprinkler head (301) is located in the simulation box (1).

10. The laparoscopic nephrectomy blood vessel suturing training simulator according to claim 1, wherein the abdominal pressure device comprises a pump (905) installed in the heating box (2), and an air outlet of the pump (905) is located in the wrapping film (904).