CN111407352A - Intelligent hemostasis device for bleeding during cesarean section - Google Patents
Intelligent hemostasis device for bleeding during cesarean section Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/0053—Cabins, rooms, chairs or units for treatment with a hot or cold circulating fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/12—Devices for heating or cooling internal body cavities
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0001—Body part
- A61F2007/0048—Genitals
- A61F2007/005—Genitals female
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0054—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water
- A61F2007/0056—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water for cooling
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0054—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water
- A61F2007/0056—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water for cooling
- A61F2007/0057—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water for cooling of gas, e.g. air or carbon dioxide
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Abstract
The invention relates to an intelligent bleeding stopping device during cesarean section, and belongs to the technical field of surgical instruments. The device comprises a refrigeration pressurization system, a control device and a pressing bag; the pressing bag covers the uterus; the uterus is cooled and pressed by the pressing bag through the refrigeration pressurization system, the muscle layer is promoted to contract forcefully, and the purpose of hemostasis is achieved. The invention is applied to the condition that a clinical lying-in woman has uterine contraction hypodynamia postpartum hemorrhage, can press the unclosed blood sinuses, promotes forceful uterine contraction, and improves the hemostasis efficiency. The invention can control the pressure and temperature of the pressing bag by a visual refrigeration pressurization system, thereby realizing high efficiency, rapidness, no wound, low temperature, intelligent cooling and uterine compression from the outside, achieving the purpose of rapid hemostasis during cesarean section, effectively avoiding the problems of suture slippage, uterine ischemic necrosis, larger wound and the like in the existing treatment means, reducing the postpartum hysterectomy rate and postpartum hemorrhage recurrence rate, and improving the satisfaction degree of patients.
Description
Technical Field
The invention relates to an intelligent bleeding stopping device during cesarean section, and belongs to the technical field of surgical instruments.
Background
The cesarean section yield of China is increased year by year, and data shows that the cesarean section yield of China is as high as 46%, postpartum uterine contraction and weakness are very common, so postpartum hemorrhage is a common complication of cesarean section, a great amount of rapid hemorrhage of a puerpera can cause hemorrhagic shock, and serious patients can endanger the life safety of the puerpera. Postpartum hemorrhage is one of four causes of death of pregnant and lying-in women, so that fast and efficient postpartum hemostasis is a key measure for clinical treatment.
When a parturient suffers from uterine contraction and hypodynamia postpartum hemorrhage, when traditional conservative treatments such as hemostasis, blood transfusion, and hemorrhagic shock prevention are ineffective, operative hemostasis is often selected. The operation hemostasis mode mainly comprises hysterectomy, uterine sling type suture, uterine artery ligation, bilateral uterine artery embolization, uterine balloon catheter filling and the like. Hysterectomy is really good in treatment effect on postpartum hemorrhage, but can cause the loss of reproductive organs and fertility of patients, and seriously affect the mental health and the quality of life of the patients. The uterus braces formula suture art mainly compresses the weak uterus of shrink through the suture to make the uterus of disease maintain the state of shrink all the time, then oppress the uterus arteriovenous of disease, reduce the metrorrhagia, reach hemostatic effect, but this mode belongs to invasive operation, takes place the problem that the suture slippage easily or uterus ischemia necrosis takes place after the treatment moreover. The operation of uterine artery ligation is complex, the hemostatic effect is not good, and researches show that the effective rate of uterine artery ligation for treating postpartum hemorrhage is only 42%, the wound is large, and the prognosis is not good. Bilateral uterine artery embolization is to define a bleeding part and a bleeding range under the guidance of DSA, then uses an embolization agent to block uterine arteries, is complex in operation, can cause reduction of ovarian blood supply, possibly causes ovarian dysfunction, and causes symptoms such as hip pain and fever of partial patients during operation. Although the uterus-filling balloon catheter has a certain curative effect on postpartum hemorrhage, the hemostatic effect is not good because the acting force is mainly on the surface of the uterine cavity, and the patient satisfaction is not high because certain postpartum hysterectomy rate and postpartum hemorrhage recurrence rate exist.
In conclusion, in the face of the problem of hemorrhage after cesarean section, the existing treatment means still have the problems of large wound, obvious side effect, poor effect and the like.
Disclosure of Invention
The invention aims to solve the problem of hemorrhage after cesarean section, in particular to the problem of postpartum hemorrhage caused by uterine contraction and weakness of clinical lying-in women, and provides an intelligent bleeding stopping device during cesarean section. The device can carry out quick noninvasive high-efficient hemostasis, and the hemostasis mode is non-invasive, no side effect and hemostatic effect are good.
The purpose of the invention is realized by the following technical scheme.
An intelligent hemostasis device for hemorrhage during cesarean section comprises a pressurization system and a pressing bag; the pressing bag covers the uterus; the pressing bag is stretched and attached through the pressurizing system, so that the uterus is pressed, the muscle layer is promoted to contract forcefully, and the purpose of stopping bleeding is achieved.
The pressing bag is of a hollow structure or a non-hollow structure.
When the pressing bag is of a hollow structure, the pressurization system realizes pressurization through gas or liquid.
The refrigerating system is used for regulating the temperature of the pressing bag; by controlling the temperature of the gas or the liquid, the muscular layer can be forcefully contracted when the uterus is cooled, thereby realizing the purpose of rapid hemostasis during the cesarean section.
Flow, velocity of flow and the temperature of the gaseous or liquid of simultaneous control circulation, the uterus meet cold and the blood sinus can be closed fast under the pressurized condition, promote the powerful shrink of uterus muscularis to realize high-efficiently, quick, it is noninvasive, the low temperature, the intelligent uterus that forces of colding pressing reaches the purpose of stanching fast when cesarean section.
The pressing bladder may be a separate bladder body or a bladder body and an adjustment ring;
the pressing bag consists of a bag body and an adjusting ring; the capsule body is of a split structure; the adjusting ring is used for closing the capsule body; the uterus is arranged in a capsule body, the capsule body is closed through an adjusting ring, a plurality of different hole positions are arranged on the adjusting ring and used for adjusting the initial pose of the coated uterus, and a gap between the adjusting ring at the outer side of the pressing capsule can be used for allowing blood vessels, fallopian tubes and ligaments at two sides of the uterus to pass through.
The pressing bag is provided with an inlet and an outlet for the passage of gas or liquid.
The hollow part in the pressing bag is provided with the partition plate to form an annular groove structure, and the structure can ensure the flow area of the cooling liquid, so that the cooling liquid is fully contacted with the surface of the uterus to achieve the purpose of rapid cooling.
The shell of the pressing bag is of a bionic shell structure, so that the pressing bag not only can play a role of placing a uterus, but also can ensure the maximum contact area with the uterus, and meanwhile, two pressing bag pieces with concavity can be attached to each other as soon as the pressure reaches a certain value, so that the pressing bag plays a role of pressing the uterus in the pressing bag;
a plurality of different hole sites are arranged on the adjusting ring and used for adjusting the initial pose of the coated uterus; the gap between the adjusting rings at the outer side of the pressing bag can be used for blood vessels, oviducts and ligaments at two sides of the uterus to pass through, and the annular groove covering the whole pressing bag can ensure the flow area of cooling liquid, so that the cooling liquid is fully contacted with the surface of the uterus, and the purpose of rapid cooling is achieved.
The pressing bag is made of environment-friendly and nontoxic elastic materials, including medical silica gel and polyvinyl chloride.
The refrigerating and pressurizing system with the refrigerating and pressurizing functions consists of a refrigerator, a water tank, a water pump, a system alarm indicator lamp and a water level meter; the water filling port of basin is responsible for injecting cooling liquid into the basin, the delivery port is connected with second part controlling means, the return water mouth links to each other with the delivery port of pressing the bag for cooling liquid can the circulation flow, the refrigerator refrigerates to the liquid in the basin, the basin is responsible for holding cooling liquid, the water pump is responsible for pressurizeing cooling liquid, system alarm indicator is used for monitoring whether normal operating of entire system, the fluviograph is used for monitoring the memory space of the cooling liquid in the basin.
The control device for providing the temperature control and pressure regulation functions mainly comprises a temperature control controller and a pressure controller; the control device is an intermediate bridge which is connected with the refrigeration pressurization system and the pressing bag, the temperature control controller is responsible for adjusting and displaying the temperature, the pressure controller is responsible for adjusting and displaying the pressure, and the control device is used for conveying cooling liquid with required temperature and pressure for the pressing bag.
By adopting the hemostasis method of the device, a proper amount of cooling liquid is injected into a water tank, the cooling liquid is refrigerated and pressurized by a refrigerator and a water pump, the temperature and the pressure are adjusted to proper values by a control device, a uterus to be pressed is placed in a pressing bag, and preliminary fixation is carried out by an adjusting ring; the cooling liquid flows into the pressing bag from the water tank through the water outlet in sequence, and returns to the refrigeration pressurization system after flowing through the whole annular groove, so that the circulation is repeated; when pressing the inside coolant liquid that flows through of bag, the temperature reduces, and two lamellas press the piece of bag simultaneously and stretch the laminating and exert pressure for the uterus, and the blood sinus can be closed fast under the uterus chance is cold and the pressurized circumstances, and the blood vessel contracts fast, promotes the powerful shrink of uterus muscle layer to realize high-efficiently, quick, it is noninvasive, low temperature, the intelligent uterus that forces of colding pressing reaches the purpose of stanching fast when cutting open the palace obstetrics.
Has the advantages that:
1. the intelligent bleeding stopping device during cesarean section disclosed by the invention has the advantages that the cooling liquid with required temperature and pressure is provided for the pressing bag through the refrigeration pressurization system and the control device, the control device is respectively provided with the temperature control controller and the pressure controller and used for reading and adjusting the temperature and the pressure, the cooling liquid can be recycled at constant temperature through the water outlet and the water return port of the refrigeration pressurization system, and the cooling effect is better.
2. The intelligent bleeding stopping device during cesarean section disclosed by the invention can not only play a role of placing the uterus, but also ensure the maximum contact area by pressing the bionic shell with a bag shape, meanwhile, after the pressure of the two pressing bag pieces with concavity reaches a certain value, the pressing bag pieces can be attached to each other as much as possible to press the uterus in the pressing bag, different hole sites on the adjusting rings uniformly distributed around the pressing bag are used for adjusting the initial pose of the coated uterus, the gap between the adjusting rings at the outer side of the pressing bag can be used for blood vessels, oviducts and ligaments at two sides of the uterus to pass through, and the annular groove covering the whole pressing bag can ensure the flowing area of the cooling liquid, thereby fully contacting with the surface of the uterus, leading the uterus to be cold and pressed, quickly closing the blood sinuses, quickly contracting the blood vessels, promoting the powerful contraction of the myometrium, thereby realizing the purposes of high efficiency, rapidness, no wound, low temperature and intelligent cold pressing to press the uterus and achieving the purpose of rapid hemostasis during the cesarean section.
3. The intelligent bleeding stopping device during cesarean section disclosed by the invention is totally divided into three parts, each part has clear functions, is convenient to move and place, and is suitable for clinical use.
Drawings
FIG. 1 is a block diagram of a refrigeration booster system of the present invention;
FIG. 2 is a structural view of a control device of the present invention;
FIG. 3 is a diagram of the external form of the compression bladder of the present invention;
fig. 4 is a view showing the internal structure of the pressing bag of the present invention.
1-refrigeration pressurization system, 2-control device, 3-pressing bag, 4-adjusting ring, 5-water inlet, 6-water outlet and 7-annular groove.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
Example 1
Referring to the attached figure 1, the refrigeration pressurization system 1 of the intelligent bleeding stopping device during cesarean section mainly comprises a water filling port, a water return port, a water outlet, a refrigerator, a water tank, a water pump, a system alarm indicator lamp and a water level meter; the water filling port is responsible for injecting cooling liquid into the basin, the delivery port is connected with second part controlling means 2, the return water mouth links to each other with delivery port 6 of pressing bag 3 for cooling liquid can the circulation flow, the refrigerator refrigerates to liquid in the basin, the basin is responsible for holding cooling liquid, the water pump is responsible for the pressurization to cooling liquid, system alarm indicator is used for monitoring whether normal operating of entire system, the fluviograph is used for monitoring the memory space of cooling liquid in the basin.
Referring to fig. 2, the control device 2 of the present invention is composed of a temperature controller and a pressure controller; the control device is an intermediate bridge which is connected with the refrigeration pressurization system 1 and the pressing bag 3, the temperature control controller is responsible for adjusting and displaying the temperature, the pressure controller is responsible for adjusting and displaying the pressure, and the pressing bag 3 is conveyed with cooling liquid with required temperature and pressure through the control device.
Referring to fig. 3 and 4, the pressing bag 3 of the present invention is composed of an adjusting ring 4, an annular groove 7, a water inlet 5, and a water outlet 6; the pressing bag 3 is bionic shell, which can play a role of placing uterus and can ensure the maximum contact area, meanwhile, two pressing bag pieces with concavity can be attached as far as possible after the pressure reaches a certain value, which plays a role of pressing the uterus in the pressing bag, different hole positions on the adjusting ring 4 are used for adjusting the initial pose of the coated uterus, gaps at the outer side of the pressing bag can be used for blood vessels, oviducts and ligaments at two sides of the uterus to pass through, the annular groove 7 covering the whole pressing bag can ensure the flow area of cooling liquid, thereby fully contacting with the surface of the uterus and achieving the purpose of rapid cooling, the water inlet 5 is connected with the water outlet of the refrigeration pressurizing system 1 through a control device, the water outlet 6 is connected with the water return port of the refrigeration pressurizing system 1, so that the cooling liquid can be kept at constant low temperature through circulating flow, and the cooling effect is better.
The working method of the intelligent hemostasis device for bleeding during cesarean section disclosed by the embodiment comprises the following steps: the cooling water outlet is connected with the pressing bag through a booster pump device, a uterus to be pressed is placed in the pressing bag, and the uterus is fixed through an adjusting ring. When the water in the cooling machine is cooled to a proper temperature, the booster pump is regulated to a required pressure value, the cooling water flows into the pressing bag in sequence, and returns to the water cooler after flowing through the whole annular groove, so that the circulation is repeated. When pressing the inside cooling water that flows through of bag, the temperature reduces, and stretch the laminating and exert pressure for the uterus, and the uterus meets cold and the pressurized, and the blood sinus is closed fast, and the blood vessel contracts fast, promotes the powerful shrink of uterus muscle layer to realize high-efficient, quick, it is not wound, low temperature, the intelligent uterus that forces of colding pressing reaches the purpose of stanching fast when cesarean section.
Example 2
The structure adopts a supercharging device and a non-hollow pressing bag, and the working method comprises the following steps: put the uterus in pressing the bag, supercharging device can adopt the arm, through the uterus in the supercharging device oppression bag, adopts mechanical device to imitate the manual mode of pressing of human promptly, promotes vasoconstriction, reaches the purpose of quick hemostasis.
Example 3
The structure is a refrigerating system and a non-hollow pressing bag, the working method is that the uterus is placed in the pressing bag, and the refrigerating system is used for cooling the uterus in the pressing bag, so that the purpose of hemostasis is achieved.
Example 4
The structure and working method are similar to example 1, except that the liquid is changed to a gas.
Although the above operation methods all have certain effect on hemostasis, the synchronous cooling and pressing is better than the independent hemostasis effect, and although the medium can be gas, the gas can be condensed when being cooled, so that the method has certain limitation relatively.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an intelligent hemostasis device of bleeding during caesarean section, its characterized in that: comprises a pressurization system and a pressing bag; the pressing bag covers the uterus; the pressing bag is stretched and attached through the pressurizing system, so that the uterus is pressed, the muscle layer is promoted to contract forcefully, and the purpose of stopping bleeding is achieved.
2. The apparatus of claim 1, wherein: the pressing bag is of a hollow structure or a non-hollow structure, and when the pressing bag is of a hollow structure, the pressurization system realizes pressurization through gas or liquid.
3. The apparatus of claim 2, wherein: the pressing bag is made of environment-friendly and nontoxic elastic materials, including medical silica gel and polyvinyl chloride.
4. The apparatus of claim 1, wherein: the refrigerating system is used for adjusting the temperature of the pressing bag; by controlling the temperature of the gas or the liquid, the muscular layer can be forcefully contracted when the uterus is cooled, thereby realizing the purpose of rapid hemostasis during the cesarean section.
5. The apparatus of claim 1, wherein: flow, velocity of flow and the temperature of the gaseous or liquid of simultaneous control circulation, the uterus meet cold and the blood sinus can be closed fast under the pressurized condition, promote the powerful shrink of uterus muscularis to realize high-efficiently, quick, it is noninvasive, the low temperature, the intelligent uterus that forces of colding pressing reaches the purpose of stanching fast when cesarean section.
6. The apparatus of claim 1, wherein: the pressing bag consists of a bag body and an adjusting ring; the capsule body is of a split structure; the adjusting ring is used for closing the capsule body; the uterus is arranged in a capsule body, the capsule body is closed through an adjusting ring, a plurality of different hole positions are arranged on the adjusting ring and used for adjusting the initial pose of the coated uterus, and a gap between the adjusting ring at the outer side of the pressing capsule can be used for allowing blood vessels, fallopian tubes and ligaments at two sides of the uterus to pass through.
7. The apparatus of claim 3, wherein: the pressing bag is provided with an inlet and an outlet for the passage of gas or liquid.
8. The apparatus of claim 3 or 7, wherein: the hollow part in the pressing bag is provided with the partition plate to form an annular groove structure, and the structure can ensure the flow area of the cooling liquid, so that the cooling liquid is fully contacted with the surface of the uterus to achieve the purpose of rapid cooling.
9. The apparatus of any one of claims 1 to 7, wherein: the shell of the pressing capsule is of a bionic shell structure, so that the effect of placing the uterus can be achieved, the maximum contact area with the uterus can be guaranteed, and meanwhile, the pressing capsule pieces with the concavity in the two valves can be attached at best after the pressure reaches a certain numerical value, so that the effect of pressing the uterus in the capsule is achieved.
10. A method of stopping bleeding using the device of any one of claims 1 to 7, wherein: injecting a proper amount of cooling liquid into the water tank, refrigerating and pressurizing the water tank by using a refrigerator and a water pump, adjusting the temperature and the pressure to proper values by using a control device, placing a uterus to be pressed in a pressing bag, and primarily fixing the uterus by using an adjusting ring; the cooling liquid flows into the pressing bag from the water tank through the water outlet in sequence, and returns to the refrigeration pressurization system after flowing through the whole annular groove, so that the circulation is repeated; when pressing the inside coolant liquid that flows through of bag, the temperature reduces, and two lamellas press the piece of bag simultaneously and stretch the laminating and exert pressure for the uterus, and the blood sinus can be closed fast under the uterus chance is cold and the pressurized circumstances, and the blood vessel contracts fast, promotes the powerful shrink of uterus muscle layer to realize high-efficiently, quick, it is noninvasive, low temperature, the intelligent uterus that forces of colding pressing reaches the purpose of stanching fast when cutting open the palace obstetrics.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010191164 | 2020-03-18 | ||
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| WO2014199347A1 (en) * | 2013-06-13 | 2014-12-18 | Cotterall-Lagana Teresa | Intra-operative pressure cuff to reduce organ bleeding |
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