CN115969490A - Medical device for promoting postpartum uterus rehabilitation - Google Patents
Medical device for promoting postpartum uterus rehabilitation Download PDFInfo
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- CN115969490A CN115969490A CN202310157072.6A CN202310157072A CN115969490A CN 115969490 A CN115969490 A CN 115969490A CN 202310157072 A CN202310157072 A CN 202310157072A CN 115969490 A CN115969490 A CN 115969490A
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Abstract
A medical device for promoting postpartum uterus rehabilitation mainly comprises a multi-cavity catheter (1), a catheter fixing device (12), a cervical closing device (13), a branch joint (2), a pressure measuring unit (3), a negative pressure drainage tube (4), a collecting container (5) and a negative pressure extension tube (6). The negative pressure uterine cavity hemostatic bag has the advantages that a stable negative pressure environment is built and maintained inside the uterine cavity, the postpartum retraction process of the uterine cavity is accelerated, and the effects of compressing bleeding in the uterine cavity or quickly stopping bleeding are achieved. Meanwhile, the bleeding or tissue fragments and the like in the uterine cavity are drained to the outside of the body, the uterine cavity is kept clean, and the infection or inflammation in the uterine cavity is effectively prevented.
Description
Technical Field
The embodiment of the disclosure relates to a medical device for promoting postpartum uterus rehabilitation, belonging to disposable sterile medical instruments used in obstetrical department of hospitals.
Background
Postpartum hemorrhage (postpartum hemorrhage) refers to the fact that the vaginal blood flow exceeds 500ml within 24 hours after natural delivery, the postpartum hemorrhage is a serious complication in the delivery period, the morbidity accounts for 2% -3% of the total delivery amount, and the postpartum hemorrhage is one of the main causes of morbidity and mortality of pregnant and lying-in women and is the first cause of four deaths of the lying-in women in China. In recent years, the incidence of late postpartum hemorrhage, endometritis and the like is also increasing with the increase of the cesarean section yield in various places. Moreover, a history of uterine surgery, trauma or advanced gestational age increases the risk of wound dehiscence, intrauterine infections can occur, peritonitis can follow with sepsis, seriously compromising women's health.
The four major causes of postpartum hemorrhage are as follows: uterine atony, placenta fetal membrane parturition abnormity, flaccid birth canal laceration and blood coagulation dysfunction, and the main reason for postpartum hemorrhage at the late cesarean section is that placenta fragment residues can not be timely discharged out of the body. At present, the uterine contraction of a puerpera is generally strengthened clinically, and the method is used as an effective hemostasis method for treating uterine contraction weakness, for example, medical workers massage the uterine fundus to promote uterine contraction so as to achieve the effect of accelerating hemostasis. If the massage still can not be effective, measures such as filling the uterine cavity, ligating the uterine artery and the like are taken, but the operation is complex, time and labor are wasted, and a great risk exists. Therefore, new technologies for strengthening uterine contraction, promoting uterine recovery, and preventing postpartum hemorrhage or intrauterine infection are urgently needed. The disclosed embodiment aims to overcome the defects of the existing postpartum uterus rehabilitation technology, and provides a medical device for promoting postpartum uterus rehabilitation.
Disclosure of Invention
A medical device for promoting postpartum uterus rehabilitation mainly comprises a multi-cavity catheter, a catheter fixing device, a cervix closing device, a branch joint, a pressure measuring unit, a negative pressure drainage tube, a collecting container and a negative pressure extension tube.
The multi-cavity duct is a flexible duct with 2-5 cavities inside, wherein one main cavity is a negative pressure drainage cavity, the head of the main cavity is provided with a negative pressure drainage hole, and the rest 2-4 cavities are auxiliary cavities. The auxiliary cavity of the multi-cavity catheter is arranged according to different functional requirements, for example, the multi-cavity catheter is specifically arranged as a flushing cavity, a body temperature probe indwelling cavity or a balloon inflation medium injection cavity. The multi-cavity catheter is made of medical high-molecular elastic materials such as polyvinyl chloride, polyurethane and silicon rubber and is produced and prepared by processes such as extrusion, slitting, punching, scale marking and the like.
The catheter fixing device is positioned at the front end of the multi-channel catheter and is used for limiting the position of the multi-channel catheter in the uterine cavity and preventing the multi-channel catheter from falling off. The specific structure and the appearance of the catheter fixing device are not limited, for example, a balloon is arranged at the head of the multi-cavity catheter to serve as the catheter fixing device, after the multi-cavity catheter is placed into a uterine cavity, the balloon is inflated after injection water is injected, and the multi-cavity catheter cannot slide out of a cervical channel, so that the effect of fixing the catheter is achieved. Or the head of the multi-cavity catheter is bent and shaped into a J shape, a Q shape or an O shape, when in practical application, after the front end of the multi-cavity catheter is sent into the uterine cavity by adopting a metal guide wire or a sheath tube, the guide wire or the sheath tube is withdrawn, the head of the multi-cavity catheter is restored to the original J shape, Q shape or O shape, and the limiting and fixing effect is achieved inside the uterine cavity.
The cervical closing device is positioned at the downstream position of the catheter fixing device, and the cervical closing device is positioned at the contact section part of the multi-channel catheter and the uterine cervix. When a negative pressure environment is clinically created in the uterine cavity, the cervical closing device is used for closing the passage gap between the periphery of the multi-channel catheter and the cervical wall to prevent the negative pressure in the uterine cavity from leaking. The specific structure and appearance of the cervical closing device are not limited, the cervical closing device adopts one of a sacculus, a water-absorbing expansion ball and a water-absorbing expansion rod, the cervical closing device is limited at the head of a uterine cervix or in a cervical channel, after the sacculus is injected with physiological saline or after the water-absorbing expansion ball/rod absorbs blood or secretion in a uterine cavity, the cervical closing device expands and deforms, so that the cervical channel and the outer wall of the multi-cavity channel catheter are in a closed fit state, and the stability of a negative pressure state in the uterine cavity is ensured.
The preferable scheme is that the catheter fixing device and the cervical closing device are designed in a combined mode, and the specific mode is that two catheter balloons are arranged at the front end of the multi-cavity catheter, a first catheter balloon is arranged at the downstream position of a negative pressure drainage hole at the head of the multi-cavity catheter, a second catheter balloon is arranged at the downstream position of the first catheter balloon, the arrangement distance between the second catheter balloon and the first catheter balloon is 4cm-8cm, and the first catheter balloon and the second catheter balloon are respectively communicated with corresponding auxiliary cavities in the multi-cavity catheter. The auxiliary cavity channel is used for injecting a balloon expansion medium, and the balloon expansion medium comprises sterile water for injection, glycerol, air and the like. When the multi-cavity catheter is clinically and practically applied, the first catheter sacculus at the head part of the multi-cavity catheter is placed into the uterine cavity, the section of the multi-cavity catheter between the two sacculus is arranged in the cervical channel, and the second catheter sacculus is positioned outside the cervix. After balloon inflation media are injected into the first catheter balloon and the second catheter balloon in sequence, the first catheter balloon and the second catheter balloon are inflated to seal the front end and the rear end of a cervical channel; not only satisfies the sealing function of the cervical canal, but also realizes the fixing function of the multi-cavity canal catheter in the uterine cavity. The volume of the catheter balloon is divided into three selectable specifications of a large balloon, a medium balloon and a small balloon, the volume of the small balloon is 10ml-50ml, the volume of the medium balloon is 50ml-100ml, the volume of the medium balloon is 100ml-150ml, and a product with a proper balloon specification is selected according to the postpartum cervical relaxation state of a puerpera. For example, when the balloon is used for a puerperal with a loose postpartum cervix, the specification of a large-size balloon can be selected, and about 120ml of physiological saline can be respectively injected into the two balloons; when the balloon is used for puerperal women with still compact uterine neck after delivery, the specification of the small balloon can be selected, and for most conventional puerperal women, the medium balloon can be selected.
The branch joint is arranged at the tail part of the multi-cavity catheter, the number of the access interfaces corresponding to the branch joint is set according to different functional requirements of the multi-cavity catheter, and the number of the access interfaces of 2-5 are arranged in the branch joint. The shape of the branch joint is not limited, and the T-shaped three-way joint, the Y-shaped three-way joint and the crotch-shaped multi-channel joint can be all used. For example, when the multi-lumen catheter only has the negative pressure drainage function, the branch joint may be provided with 3 access ports, wherein the front end of the first access port is communicated with the main lumen of the multi-lumen catheter, the rear end of the first access port is communicated with the negative pressure drainage tube, the second access port is communicated with the balloon inflation medium injection lumen of the multi-lumen catheter, and the third access port is communicated with the pressure measurement port of the pressure measurement unit. On the basis, functions are added, for example, a flushing passage is added to a secondary cavity of the multi-cavity catheter, or a temperature probe insertion passage is added, and the number of the inner passages and the number of the interfaces of the branch joint are correspondingly increased.
The pressure measuring unit is mainly used for dynamically monitoring the pressure in the uterine cavity and mainly comprises a pressure sensor, a matched integrated circuit and a data interface. The pressure measuring port of the pressure measuring unit is communicated with the main channel of the multi-channel catheter by adopting an extension tube or a branch joint. The range of the pressure sensor is not less than 0-100 mmHg, and the metering error is not more than 1mmHg. The data interface is connected with medical monitoring equipment by adopting a data line and is used for reading out and prompting the acquired uterine cavity pressure data, and the data interface can adopt a USB interface or a Mini interface. The pressure measuring unit can be integrated with modules including a micro communication module, a micro power supply module and the like, so that wireless communication and cooperative work with medical monitoring equipment are realized. Obviously, the pressure measuring unit can also be integrated in medical monitoring equipment, and the pressure measuring port of the pressure measuring unit is communicated with the main cavity of the multi-cavity catheter by adopting an extension tube, so that the dynamic monitoring of the pressure in the uterine cavity is realized. Furthermore, the pressure measuring module is combined or linked with the negative pressure source control equipment, and the negative pressure value applied by the negative pressure source is automatically controlled through dynamic monitoring and feedback of the pressure measuring module, so that the negative pressure in the uterine cavity is stably kept within a set target value range.
The negative pressure drainage tube is arranged at the downstream position of the branch joint, one end of the negative pressure drainage tube is communicated with a port corresponding to a main channel (namely a negative pressure drainage cavity) of the branch joint, the other end of the negative pressure drainage tube is communicated with a liquid inlet of the collection container, and bleeding, residual tissue fragments and the like in the uterine cavity are drained into the collection container in the negative pressure drainage process. The negative pressure drainage tube is made of medical high polymer materials such as soft polyvinyl chloride and the like through extrusion and cutting molding, the inner diameter is required to be not less than 5mm, and the negative pressure drainage tube can bear more than 100KPa and cannot be shriveled or distorted and deformed.
The collecting container is used for collecting blood and residual tissue fragments which are discharged from a uterine cavity, and is generally processed and molded by adopting a high polymer material blow molding or injection molding process, the volume is required to be not less than 300ml, and the collecting container can bear the negative pressure of more than 100KPa and cannot be shriveled or distorted. The collecting container is provided with a liquid inlet, a liquid outlet and a negative pressure interface for connecting a negative pressure extension pipe.
The negative pressure extension pipe is used for connecting a negative pressure air source, one end of the negative pressure extension pipe is connected to a negative pressure air source device, and the other end of the negative pressure extension pipe is connected with a negative pressure interface of the collection container or the drainage pipeline. The negative pressure drainage tube is made of medical high polymer materials such as soft polyvinyl chloride and the like through extrusion and cutting molding, the inner diameter is required to be not less than 2mm, and the negative pressure drainage tube can bear more than 100KPa and cannot be shriveled or distorted and deformed.
The working mechanism of the embodiment of the disclosure is that after the head part of the multi-cavity catheter is placed in the uterine cavity of a puerpera, the multi-cavity catheter is limited in the uterine cavity or the cervical part by the catheter fixing device, and the cervical closing device ensures that the outer wall of the multi-cavity catheter is combined with the cervical channel in a sealing way. Based on the negative pressure provided by the negative pressure air source, the negative pressure of between 60 and 100mmHg is applied to the main cavity, the drainage pipeline and the collection container of the multi-cavity catheter, a stable negative pressure environment is created and maintained in the uterine cavity, the rapid inward contraction of the muscles in the uterine cavity is promoted, and bleeding or tissue fragments in the uterine cavity are drained into the collection container under the negative pressure.
The beneficial clinical effects of the embodiment of the disclosure are that a stable negative pressure environment of 60mmHg-100mmHg is built and maintained in the uterine cavity, the retraction process of the uterine cavity after delivery is accelerated, and the effects of compressing bleeding in the uterine cavity or quickly stopping bleeding are achieved; meanwhile, the bleeding or tissue fragments and the like in the uterine cavity are drained to the outside of the body, the uterine cavity is kept clean, and the infection or inflammation in the uterine cavity is effectively prevented. The technical scheme provided by the embodiment of the disclosure has high medical cost performance, is simple to operate and has important clinical value.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the disclosure
FIG. 2 is a schematic view of the structure of example 2
Shown in the figure: the multi-channel catheter comprises a multi-channel catheter (1), a branch joint (2), a pressure measuring unit (3), a negative pressure drainage tube (4), a collection container (5), a negative pressure extension tube (6), a drainage hole (7), a first catheter balloon (8), a second catheter balloon (9), a liquid inlet (10), a negative pressure interface (11), a catheter fixing device (12) and a cervical sealing device (13).
Detailed description of the preferred embodiments
The embodiments of the present disclosure are specifically described below with reference to the drawings and the embodiments.
Example 1: embodiment for preparing combined design of catheter fixing device and cervical closing device
In the embodiment, the catheter fixing device and the cervical closing device are combined, and the integration level is improved by adopting a fixing and sealing mode of the first catheter balloon (8) and the second catheter balloon (9), and the structure is shown in fig. 1. The preparation process comprises the following steps:
1. preparing an extrusion die of a multi-channel catheter (1), a negative pressure drainage tube (4) and a negative pressure extension tube (6), wherein: the multi-channel catheter (1) has an outer diameter of 22Fr, a main channel for negative pressure drainage is arranged in the multi-channel catheter, and the inner diameter of the main channel is 3mm. And a first catheter sacculus (8) and a second catheter sacculus (9) water injection cavity channel are also arranged, and the inner diameters of the water injection cavity channels are respectively 1mm. The negative pressure drainage tube (4) has an outer diameter of 7.9mm and a wall thickness of 0.8mm. The negative pressure extension pipe (6) and the pressure measuring unit (3) extension pipe adopt pipelines of the same specification, the outer diameter is 3.9mm, and the wall thickness is 0.6mm.
After the die is completed, soft polyvinyl chloride is adopted for extrusion and cutting production, the length of the multi-cavity catheter (1) is 400m, the length of the negative pressure drainage tube (4) is 1200mm, the length of the negative pressure extension tube (6) is 900mm, the length of the pressure measuring unit (3) is 300mm, and the multi-cavity catheter is ready for use after production.
2. Preparing an injection mold of a branch joint (2) as shown in the structure of figure 1, wherein the branch joint (2) is provided with a pressure measuring unit (3) with the inner diameter of 4mm and the depth of 6mm, and an interface of a pipeline is extended; a connector of a negative pressure drainage tube (4) with the inner diameter of 8mm and the depth of 6mm is arranged; and injection ports for injection water of the first catheter balloon (8) and the second catheter balloon (9) are also arranged. The branch joint (2) is made of soft polyvinyl chloride materials by injection molding for standby.
3. Adopting a punching device to prepare a drainage hole (7) which is penetrated oppositely at the head part of the multi-cavity duct (1), wherein the hole diameter is 1mm; and water injection holes with the aperture of 0.5mm are respectively arranged on the outer walls of the auxiliary cavity corresponding to the first catheter sacculus (8) and the second catheter sacculus (9) of the multi-cavity catheter (1).
4. The first catheter balloon (8) and the second catheter balloon (9) are bonded on the periphery of the water injection hole of the auxiliary cavity, and the volumes of the first catheter balloon (8) and the second catheter balloon (9) are respectively 50ml.
5. Preparing a pressure measuring unit (3): preparing a circular PCB with the diameter of 9.2mm; and welding the pressure sensor and the data interface on the PCB by adopting an electronic Surface Mount Technology (SMT), wherein the pressure measuring port of the pressure sensor is positioned right above the PCB. After a pressure measuring port of the pressure sensor is protected, insulating glue is brushed on the surface of the pressure measuring port, and a pressure measuring unit (3) is prepared for standby.
6. And the pressure measuring unit (3) is connected and communicated with the branch joint (2) by adopting an extension pipe in a bonding way.
7. The negative pressure drainage tube (4) is connected with the liquid inlet (10) of the collecting container (5) in a bonding mode, and the front end of the negative pressure drainage tube (4) can be connected with a transition joint in a bonding mode, so that the negative pressure drainage tube can be conveniently and quickly connected with the drainage interface of the branch joint (2).
8. A negative pressure interface (11) of the collecting container (5) is bonded and communicated with the tail part of the negative pressure extension pipe (6), and a transition joint can be bonded at the front end of the negative pressure extension pipe (6), so that the negative pressure extension pipe (6) is conveniently and quickly connected with a negative pressure source.
9. The bonding adopts medical cyclohexanone glue, and the prepared product is checked for bonding part firmness and has no leakage. Sterilizing and resolving by adopting ethylene oxide, and performing sterile inspection to obtain the product.
Example 2: preparation of an embodiment with independent arrangement of the catheter fixing device (12) and the cervical closing device (13)
1. A multi-cavity catheter (1) is prepared by adopting a soft polyurethane material extrusion process, and the production preparation modes of a branch joint (2), a pressure measuring unit (3), a negative pressure drainage tube (4), a collection container (5), a negative pressure extension tube (6), a drainage hole (7) and the like refer to example 1.
2. Adopts punching equipment to form 3-5 drainage holes (7) in the range of 0-5cm at the head of the multi-lumen catheter (1).
3. Preparing a catheter fixing device (12): the head of the multi-cavity catheter (1) is bent into a circle shape or a hook shape after being heated within the range of 0-8cm, and the circle or the hook of the head is shaped after being cooled.
4. A balloon with the volume of 60ml is used as a cervical closing device (13) and is adhered to the position 20-30mm downstream of the catheter fixing device (12), and the interior of the balloon is communicated with a secondary cavity for injecting water.
Example 3: examples of clinical applications
1. Example 1 method of clinical use of the product prepared:
(1) By adopting an aseptic operation technology, the multi-cavity catheter (1) is placed into the uterine cavity from the cervical canal, and the placing depth is 60-90mm (determined according to the individual difference of patients).
(2) 50ml of sterile normal saline is injected into the first catheter balloon (8) of the branch joint (2) corresponding to the water injection port, the multi-cavity catheter (1) is slightly pulled, and if the multi-cavity catheter cannot be pulled out, the first catheter balloon (8) is successfully fixed in the uterine cavity.
(3) 30-50ml of sterile normal saline is injected into the second catheter balloon (9) of the branch joint (2) corresponding to the water injection port, and the cervical orifice is preferably sealed after the balloon is expanded.
(4) As shown in figure 1, the negative pressure drainage tube (4), the collection container (5) and the negative pressure extension tube (6) are connected in turn, and the connection part is checked to have no leakage.
(5) And starting the negative pressure source, keeping the negative pressure value at about-100 KPa stably, and keeping the negative pressure state in the uterine cavity.
Example 2 clinical use of the product prepared:
(1) A metal guide wire with the outer diameter of 1.0-1.5mm is inserted into the negative pressure drainage cavity of the multi-cavity catheter (1), so that the catheter fixing device (12) at the head of the multi-cavity catheter (1) becomes a straight line under the supporting action of the metal guide wire.
(2) The multi-cavity catheter (1) is placed into the uterine cavity from the cervical canal by adopting an aseptic operation technology, the metal guide wire is pulled out, and the catheter fixing device (12) at the head part of the multi-cavity catheter (1) is restored to be in a circle or hook shape and is fixed in the uterine cavity.
(3) The cervical closing device (13) is placed in the cervical canal, 30-50ml of sterile normal saline is injected, so that the cervical closing device (13) is expanded in the cervical canal and is inosculated with the inner wall of the cervical canal, and the purpose of negative pressure sealing is achieved.
(4) And starting the negative pressure source, keeping the negative pressure value at about-100 KPa stably, and keeping the negative pressure state in the uterine cavity.
The drawings and embodiments are only for purposes of illustrating the technical solutions of the embodiments of the present disclosure and are not to be construed as limiting, although reference is made to the embodiments
Detailed description of the preferred embodimentsthe embodiments of the present disclosure are described in detail, and it will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the embodiments of the present disclosure, which are intended to be covered by the claims of the embodiments of the present disclosure and not to limit the scope of the embodiments of the present disclosure.
Claims (9)
1. A medical device for promoting postpartum uterus rehabilitation mainly comprises a multi-cavity catheter (1), a catheter fixing device (12), a cervical closing device (13), a branch joint (2), a pressure measuring unit (3), a negative pressure drainage tube (4), a collecting container (5) and a negative pressure extension tube (6); the multi-cavity catheter (1) is a flexible catheter with 2-5 cavities inside, wherein one main cavity is a negative pressure drainage cavity, the head of the main cavity is provided with a negative pressure drainage hole (7), and the rest 2-4 cavities are auxiliary cavities; the catheter fixing device is positioned at the front end position of the multi-cavity catheter (1), the cervical closing device is positioned at the downstream position of the catheter fixing device (12), and the cervical closing device (13) is positioned at the section part of the multi-cavity catheter (1) contacted with the uterine cervix; the branch joints (2) are arranged at the tail part of the multi-cavity duct (1), and the number of access interfaces corresponding to the branch joints (2) is set according to different functional requirements of the multi-cavity duct (1); the pressure measuring unit (3) is mainly used for dynamically monitoring the pressure in the uterine cavity, and a pressure measuring port of the pressure measuring unit (3) is communicated with a main cavity channel of the multi-channel catheter (1) by adopting an extension tube or a branch joint (2); the negative pressure drainage tube (4) is arranged at the downstream position of the branch joint (2), one end of the negative pressure drainage tube (4) is communicated with a port corresponding to a main channel (namely a negative pressure drainage cavity) of the branch joint (2), and the other end of the negative pressure drainage tube is communicated with a liquid inlet (10) of the collection container (5); the negative pressure extension pipe (6) is used for connecting a negative pressure air source, one end of the negative pressure extension pipe (6) is connected with a negative pressure air source device, and the other end of the negative pressure extension pipe is connected with a negative pressure interface (11) or a drainage pipeline of the collection container (5); the method is characterized in that: the catheter fixing device is used for limiting the position of the multi-channel catheter (1) in the uterine cavity and preventing the catheter from falling off, and the cervical closing device (13) is used for closing the passage gap between the periphery of the multi-channel catheter (1) and the cervical wall and preventing negative pressure in the uterine cavity from leaking; after the head part of the multi-cavity catheter (1) is placed in the uterine cavity of a puerpera, the multi-cavity catheter (1) is limited in the uterine cavity or the cervical part by using a catheter fixing device (12), and the outer wall of the multi-cavity catheter (1) is ensured to be combined with the cervical channel in a sealing way by using a cervical closing device (13); based on the negative pressure provided by the negative pressure air source, the negative pressure of between 60mmHg and 100mmHg is applied to the main cavity, the drainage pipeline and the collection container (5) of the multi-cavity catheter (1), a stable negative pressure environment is created and maintained in the uterine cavity, the rapid inward contraction of the uterine cavity muscle is promoted, and bleeding or tissue debris in the uterine cavity is drained into the collection container (5) under the negative pressure.
2. A medical device for promoting postpartum uterine recovery as in claim 1, further characterized by: the auxiliary cavity of the multi-cavity catheter (1) is set according to different functional requirements, and is specifically set as a flushing cavity, a body temperature probe indwelling cavity or a balloon medium injection cavity.
3. A medical device for promoting postpartum uterine recovery as in claim 1, further characterized by: the cervical closing device adopts one of a sacculus, a water-absorbing expansion ball and a water-absorbing expansion rod.
4. A medical device for promoting postpartum uterine recovery as in claim 1, further characterized by: the catheter fixing device and the cervical closing device are designed in a combined mode, the specific mode is that two catheter balloons are arranged at the front end of a multi-cavity catheter (1), a first catheter balloon (8) is arranged at the downstream position of a negative pressure drainage hole (7) at the head of the multi-cavity catheter (1), a second catheter balloon (9) is arranged at the downstream position of the first catheter balloon (8), the arrangement distance between the second catheter balloon (9) and the first catheter balloon (8) is 4cm-8cm, and the first catheter balloon (8) and the second catheter balloon (9) are respectively communicated with corresponding auxiliary cavities in the multi-cavity catheter (1).
5. The medical device for promoting postpartum uterine recovery of claim 1, further characterized by: in clinical practical application, a first catheter balloon (8) at the head of the multi-channel catheter (1) is placed into a uterine cavity, the section of the multi-channel catheter (1) between the two balloons is placed in a cervical channel, and a second catheter balloon (9) is positioned on the outer side of the cervix; after balloon inflation media are injected into the first catheter balloon (8) and the second catheter balloon (9) in sequence, the first catheter balloon (8) and the second catheter balloon (9) are inflated to seal the front end and the rear end of a cervical canal, so that the sealing effect of the cervical canal is met, and the fixing effect of the multi-lumen-canal catheter (1) in a uterine cavity is realized.
6. A medical device for promoting postpartum uterine recovery as in claim 1, further characterized by: the volume of the catheter balloon is divided into three selectable specifications of a large balloon, a medium balloon and a small balloon, the volume of the small balloon is 10ml-50ml, the volume of the medium balloon is 50ml-100ml, the volume of the medium balloon is 100ml-150ml, and a product with a proper balloon specification is selected according to the postpartum cervical relaxation state of a puerpera.
7. A medical device for promoting postpartum uterine recovery as in claim 1, further characterized by: the pressure measuring unit (3) mainly comprises a pressure sensor, a matched integrated circuit and a data interface.
8. The medical device for promoting postpartum uterine recovery of claim 1, further characterized by: the pressure measuring module (3) is combined or linked with the negative pressure source control equipment, and the negative pressure value applied by the negative pressure source is automatically controlled through dynamic monitoring and feedback of the pressure measuring module (3), so that the negative pressure in the uterine cavity is stably kept within a set target value range.
9. A medical device for promoting postpartum uterine recovery as in claim 1, further characterized by: the beneficial clinical effects are that a stable negative pressure environment of 60mmHg-100mmHg is built and maintained in the uterine cavity, the retraction process after the uterine cavity is parted is accelerated, and the effects of compressing the internal bleeding of the uterine cavity or quickly stopping bleeding are achieved; meanwhile, the bleeding or tissue fragments and the like in the uterine cavity are drained to the outside of the body, the uterine cavity is kept clean, and the infection or inflammation in the uterine cavity is effectively prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310157072.6A CN115969490A (en) | 2023-02-23 | 2023-02-23 | Medical device for promoting postpartum uterus rehabilitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310157072.6A CN115969490A (en) | 2023-02-23 | 2023-02-23 | Medical device for promoting postpartum uterus rehabilitation |
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| CN115969490A true CN115969490A (en) | 2023-04-18 |
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| CN202310157072.6A Pending CN115969490A (en) | 2023-02-23 | 2023-02-23 | Medical device for promoting postpartum uterus rehabilitation |
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- 2023-02-23 CN CN202310157072.6A patent/CN115969490A/en active Pending
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