CN220608398U - Temperature-control perfusion system - Google Patents
Temperature-control perfusion system Download PDFInfo
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- CN220608398U CN220608398U CN202321561741.8U CN202321561741U CN220608398U CN 220608398 U CN220608398 U CN 220608398U CN 202321561741 U CN202321561741 U CN 202321561741U CN 220608398 U CN220608398 U CN 220608398U
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- endoscope
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- 230000010412 perfusion Effects 0.000 title claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 113
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims 1
- 238000009835 boiling Methods 0.000 description 3
- 229910052689 Holmium Inorganic materials 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 210000000244 kidney pelvis Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000000451 tissue damage Effects 0.000 description 2
- 231100000827 tissue damage Toxicity 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 241001484259 Lacuna Species 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides a temperature-control perfusion system, which comprises an outer sheath tube, an endoscope, a liquid storage bag, a perfusion pump, a liquid inlet tube, a liquid outlet tube and a cooling device, wherein the endoscope is inserted into the outer sheath tube, and a liquid delivery channel is formed in the endoscope; the liquid storage bag is internally stored with perfusion liquid; the perfusion pump is used for pumping perfusion liquid; the perfusion pump is connected with the liquid storage bag through at least one liquid inlet pipe; the perfusion pump is communicated with a liquid feeding channel of the endoscope through at least one liquid outlet pipe; the cooling device is arranged on at least one of the liquid storage bag, the liquid inlet pipe or the liquid outlet pipe to reduce the liquid supply temperature of the perfusion liquid.
Description
Technical Field
The utility model relates to the field of ureteroscope laser lithotripsy, in particular to a temperature-control perfusion system.
Background
In the ureteroscope holmium laser lithotripsy, the characteristics of low perfusion pressure, high laser working power and long continuous excitation time can cause local tissue thermal injury, and liquid in a body cavity is in a boiling state. At present, the cooling is mainly realized by pouring perfusion liquid into a cavity, such as a renal pelvis, and accelerating the circulation times in the body. The doctor increases the perfusion flow according to experience, prolongs the mode of holmium laser use interval, relies on these experience control intracavity temperature to rise, adjusts the pressure and the flow of perfusion pump, is very big examination to the experience and the state of art person, and the operation success rate can't obtain guaranteeing, obviously has great randomness and uncertainty through manual regulation and control, and according to experience, because energy equipment such as electrosurgery and laser are in the use, the heat energy that produces makes the perfusion liquid temperature rise continually, consequently the perfusion volume need reach high perfusion flow and just can play the purpose of cooling, simultaneously in order to maintain pressure balance, then the flow that attracts also needs synchronous promotion, and is higher to the equipment requirement, and the temperature control effect is limited.
Disclosure of Invention
The utility model provides a temperature-controlled perfusion system, which comprises:
the outer sheath tube is provided with a plurality of outer sheath tubes,
an endoscope inserted in the outer sheath tube, the endoscope having a liquid feeding passage formed therein;
the liquid storage bag is internally provided with perfusion liquid;
a perfusion pump for pumping a perfusion fluid;
the liquid inlet pipe is connected with the liquid storage bag through at least one liquid inlet pipe;
the perfusion pump is communicated with the liquid feeding channel of the endoscope through at least one liquid outlet pipe;
and the cooling device is arranged on at least one of the liquid storage bag, the liquid inlet pipe or the liquid outlet pipe so as to reduce the liquid supply temperature of the perfusion liquid.
In some embodiments, the perfusion system includes a normothermic reservoir bag for storing normothermic liquid;
the cooling device comprises a cooling module which is arranged on the liquid inlet pipe to cool the liquid in the liquid inlet pipe.
In some embodiments, part of the pipeline of the liquid inlet pipe is arranged in the cooling module, and the liquid in the pipeline is instantaneously cooled according to the winding mode of the pipeline and the temperature of the cooling module 8.
In some embodiments, the system further comprises:
a temperature sensor provided on the endoscope or the outer sheath to detect a temperature inside the body cavity;
the main control machine controls the supply temperature of the perfusion liquid according to the temperature signal acquired by the temperature sensor.
In some embodiments, the liquid inlet pipe and the liquid outlet pipe are externally wrapped with heat insulation materials.
In some embodiments, the perfusion system further comprises an aspiration device coupled to the outer sheath.
In some embodiments, the suction device comprises a diaphragm pump, a first negative pressure suction tube, a suction container and a second negative pressure suction tube, wherein one end of the first negative pressure suction tube is connected with the diaphragm pump, the other end of the first negative pressure suction tube is connected with the suction container, one end of the second negative pressure suction tube is connected with the suction container, and the other end of the second negative pressure suction tube is connected with the outer sheath tube.
In some embodiments, the temperature sensor is mounted to an endoscope or sheath.
Compared with the perfusion system which only depends on perfusion flow regulation, the perfusion system provided by the utility model can exert the cooling function through a plurality of parameters such as flow, temperature, pressure and the like, thereby reducing the experience requirements of operators and reducing postoperative complications.
Drawings
FIG. 1 is a schematic diagram of a perfusion system according to the present utility model;
the device comprises a sheath tube 1, an endoscope 2, an endoscope 21, an endoscope wire harness 22, an image processor 31,32, a liquid storage bag 6, a liquid inlet tube 7, a liquid outlet tube 8, a cooling module 81-cooling cable 91, a first negative pressure suction tube 92, a second suction tube 93, a suction container 100, a pedal piece 101, a pedal cable 11 and a temperature sensor.
Detailed Description
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring now to fig. 1, a perfusion system according to an embodiment of the present utility model is shown, and referring to fig. 1, the perfusion system according to an embodiment of the present utility model includes an outer sheath 1, an endoscope 2, at least one fluid reservoir 31,32, at least one perfusion pump, at least one fluid inlet tube 6, at least one fluid outlet tube 7, and a cooling device.
The outer sheath 1 defines an instrument access channel for inserting the endoscope 2 therein, and the outer sheath 1 provided in this embodiment is a three-channel sheath having a central channel for insertion of the endoscope 2, a pressure measuring channel for fitting a pressure sensor, and a suction channel for connection with a suction device.
The endoscope 2 is inserted in the outer sheath tube 1, a camera at the head end of the endoscope 2 is used for collecting images in the cavity, the images are processed and then output to a display for a doctor to observe the environment condition in the cavity, and a liquid feeding channel is formed in the endoscope 2 and used for inflow of perfusion liquid. Specifically, the endoscope 2 is connected to an image processor 22 through an endoscope harness 21.
The liquid storage bags 31 and 32 are internally provided with perfusion liquid, the perfusion pumps are used for pumping the perfusion liquid, the perfusion pumps 31 and 32 are connected with the liquid storage bags through at least one liquid inlet pipe 6, the perfusion pumps are communicated with a liquid conveying channel of the endoscope 2 through at least one liquid outlet pipe 7, so that the perfusion liquid of the liquid storage bags 31 and 32 is conveyed to the liquid conveying channel of the endoscope through the liquid inlet pipe 6, the perfusion pumps and the liquid outlet pipe 7 and finally flows into a focus part, and when the temperature caused by laser lithotripte is too high, the perfusion pumps convey the perfusion liquid to a cavity such as the focus part in a renal pelvis so as to take away overheat heat generated in the lithotripte process. In addition, the perfusate can wash away bleeding and stone powder during operation, keep the visual field of the endoscope 2 clear, and can also prop open the lacuna to maintain the space necessary for operation.
Because the heat that laser rubble process produced is too high, the instantaneous heat of laser can cause the liquid in the cavity to be boiling state, in order to avoid the tissue damage that this too high temperature arouses, doctor need adjust the rotational speed of perfusion pump increase the flow of perfusate in order to take away the heat through the normal atmospheric temperature perfusate of large-traffic, and too big volume of perfusate can cause the pressure to be too high in the cavity, therefore prior art need rely on suction device to accelerate the circulation of perfusate. However, even with high-circulation perfusion, the instantaneous pressure in the body is still high and limited by the size of the inlet and outlet lines, and the increase in flow rate is limited. In practical operation, even if the flow rate of the normal-temperature perfusion liquid at 25 ℃ is increased, the boiling intra-cavity liquid in the body perfusion system cannot be timely reduced to a proper and ideal temperature (30-40 ℃). Based on this, the cooling device provided in this embodiment is disposed on at least one of the liquid storage bag, the liquid inlet pipe or the liquid outlet pipe to reduce the liquid supply temperature of the perfusion liquid, so that the perfusion liquid is cooled before being delivered to the liquid delivery channel to deliver the cooled liquid into the cavity to take away heat, for example, the speed of delivering the liquid below 5 ℃ into the liquid delivery channel to take away heat compared with the normal-temperature perfusion liquid is significantly accelerated, the ideal temperature can be reached in a short time, and the technical problem of short operation course and slow cooling speed is solved.
The perfusion system provided in this embodiment further includes a temperature sensor 11 and a main control unit 5, the temperature sensor 11 is disposed on the endoscope 2 or the outer sheath 1 to detect the temperature in the body cavity, and the main control unit 5 controls the supply temperature of the perfusion liquid according to the temperature signal obtained by the temperature sensor 11, so that the supply temperature and the flow rate of the perfusion liquid can be controlled by the main control unit 5 according to the temperature difference between the temperature collected by the temperature sensor 11 and the ideal preset temperature.
In this embodiment, the perfusion pump and the diaphragm pump of the suction device are integrally installed with the main control unit, and the perfusion suction host is used for controlling the flow and pressure of perfusion and suction and controlling the temperature of the perfusion liquid, so that the device is more simplified and operates well.
In an embodiment of the present utility model, referring to fig. 1, the filling system includes a normal temperature liquid storage bag 31 and a cooling module 8, the cooling module forms the cooling device, the normal temperature liquid storage bag 31 is used for storing normal temperature liquid, the cooling module 8 is disposed on the liquid inlet pipe 6 to cool the liquid of the liquid inlet pipe, in this embodiment, the cooling module 8 may be a device for manufacturing a low temperature environment such as a refrigerator or a heat exchanger, a part of the pipeline of the liquid inlet pipe 6 is disposed therein, the liquid in the pipeline is instantaneously cooled according to the winding mode of the pipeline and the temperature of the cooling module 8, and the cooled liquid enters the pump body to be sent to the liquid feeding channel. It can be understood that the cooling module 8 may also be disposed on the liquid outlet pipe 7, so as to reduce the temperature of the perfusate to a certain extent, and the doctor can adjust the perfusion flow in real time according to the collected temperature to take away the heat generated by the laser. It will be appreciated that when the system is not required to control temperature, such as by merely flushing away bleeding and stone powder during surgery, maintaining endoscope 2, the perfusate at too low a temperature may also cause tissue frostbite, at which point cooling module 8 may be removed. In addition, in order to cool down the liquid of the pipeline, the liquid inlet pipe and the liquid outlet pipe can be wrapped by heat insulation materials.
Specifically, cooling module 8 be connected with main control computer 5 through cooling cable 81, main control computer 5 can the accurate temperature of control cooling module 8, can be through the outside cooling temperature of main control computer control perfusate, this kind of mode can be instantaneously cooled down the perfusate that passes cooling module.
Alternatively, the main control unit 5 is connected to the foot pedal 100 through a foot pedal 101, and the infusion system can be controlled by the foot pedal when the hand is difficult to operate the main control unit during the operation of the doctor.
The low-temperature perfusate provided in the embodiment can realize the perfusion of small flow of the perfusate, and can not cause the problem of overhigh pressure. In some preferred embodiments, the perfusion system further comprises an aspiration device, which is connected to the outer sheath 1; specifically, the suction device comprises a diaphragm pump, a first negative pressure suction pipe 91, a suction container 93 and a second negative pressure suction pipe 92, wherein one end of the first negative pressure suction pipe 91 is connected with the diaphragm pump, the other end of the first negative pressure suction pipe is connected with the suction container 93, one end of the second negative pressure suction pipe 92 is connected with the suction container 93, and the other end of the second negative pressure suction pipe is connected with the outer sheath pipe 1; in particular, when the laser operation is performed for a long time, the operation time is long, and the perfusate is relatively increased, so that the device can be attracted to reduce the pressure in the cavity.
It can be appreciated that compared with the existing perfusion system, the perfusion system provided in this embodiment has the advantages that the circulation times and the liquid flow rate are significantly reduced due to the controllable temperature of the perfusion liquid, and the tissue damage caused by high flow rate and high pressure is avoided.
The temperature sensor 11 is assembled in the endoscope 2 or the outer sheath tube 1, in the embodiment, the temperature sensor 11 is arranged at the head end of the endoscope, the temperature in the cavity is collected in real time, and a temperature measurement signal can be directly fed back to the main control computer; or can be transmitted to the electronic endoscope 2 host machine, and then the electronic endoscope 2 host machine feeds back signals to the perfusion suction host machine. The temperature of the focus part of the human body can be detected in real time.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "this embodiment," "specifically," "optionally," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A temperature controlled perfusion system, the perfusion system comprising:
the outer sheath tube is provided with a plurality of outer sheath tubes,
an endoscope inserted in the outer sheath tube, the endoscope having a liquid feeding passage formed therein;
the liquid storage bag is internally provided with perfusion liquid;
a perfusion pump for pumping a perfusion fluid;
the liquid inlet pipe is connected with the liquid storage bag through at least one liquid inlet pipe;
the perfusion pump is communicated with the liquid feeding channel of the endoscope through at least one liquid outlet pipe;
and the cooling device is arranged on at least one of the liquid storage bag, the liquid inlet pipe or the liquid outlet pipe so as to reduce the liquid supply temperature of the perfusion liquid.
2. The perfusion system of claim 1, wherein the perfusion system comprises an ambient temperature reservoir bag for storing an ambient temperature liquid;
the cooling device comprises a cooling module which is arranged on the liquid inlet pipe to cool the liquid in the liquid inlet pipe.
3. The perfusion system of claim 2, wherein a portion of the tubing of the inlet tube is disposed in a cooling module.
4. The perfusion system of claim 1, wherein the system further comprises:
a temperature sensor provided on the endoscope or the outer sheath to detect a temperature inside the body cavity;
the main control machine controls the supply temperature of the perfusion liquid according to the temperature signal acquired by the temperature sensor.
5. The perfusion system of claim 1, wherein the inlet and outlet tubes are surrounded by insulation.
6. The perfusion system of claim 1, further comprising an aspiration device coupled to the outer sheath.
7. The perfusion system of claim 6, wherein the suction device comprises a diaphragm pump, a first negative pressure suction tube, a suction container, and a second negative pressure suction tube, wherein one end of the first negative pressure suction tube is connected to the diaphragm pump, the other end is connected to the suction container, one end of the second negative pressure suction tube is connected to the suction container, and the other end is connected to the sheath tube.
8. The perfusion system of claim 1, wherein the endoscope or sheath is equipped with a temperature sensor.
9. The perfusion system of claim 4, wherein the cooling device comprises a cooling module disposed on the liquid inlet pipe for cooling the liquid in the liquid inlet pipe, and the cooling module is connected to the main control computer via a cooling cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321561741.8U CN220608398U (en) | 2023-06-16 | 2023-06-16 | Temperature-control perfusion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321561741.8U CN220608398U (en) | 2023-06-16 | 2023-06-16 | Temperature-control perfusion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220608398U true CN220608398U (en) | 2024-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321561741.8U Active CN220608398U (en) | 2023-06-16 | 2023-06-16 | Temperature-control perfusion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220608398U (en) |
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2023
- 2023-06-16 CN CN202321561741.8U patent/CN220608398U/en active Active
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