CN219480225U - Uterine cavity hemostatic sac capable of monitoring pressure in real time and automatically filling - Google Patents

Abstract

The utility model discloses a uterine cavity hemostatic balloon capable of real-time monitoring of pressure and automatic filling, which comprises a catheter and a balloon wrapped on the outer wall of the catheter. There is an infusion bag connected to the whole part, the infusion tube sleeve is equipped with a flow rate regulator, and it also includes an air bag pressurized bag, an inflatable skin bag and a transparent sealing cylinder, the air bag pressurized bag wraps the infusion bag, and the air bag pressurized bag is respectively connected with the inflatable skin bag, the transparent airtight The sealed cylinder is connected, and the transparent sealed cylinder is provided with a pressure measurement chamber and an installation chamber. The piston body is arranged in the pressure measurement chamber. The two ends of the piston body are respectively provided with a first conductor, a second conductor, and a third conductor. They are respectively arranged on both sides of the pressure measuring chamber, the battery is arranged in the installation chamber, and the low-voltage indicator light and the high-pressure indicator light are respectively arranged on the outer side of the installation chamber. The utility model can automatically fill or reduce the amount of liquid in the balloon to maintain the set hydrostatic pressure for effective hemostasis.

Description

A uterine cavity hemostatic balloon capable of real-time monitoring of pressure and automatic inflation

technical field

The utility model relates to the technical field of medical appliances, in particular to a uterine cavity hemostatic balloon capable of real-time pressure monitoring and automatic filling.

Background technique

Postpartum hemorrhage is a common complication during childbirth and one of the main causes of maternal death. Uterine tamponade is a conservative treatment that can effectively control postpartum hemorrhage. The risk of occult bleeding caused by laxity, more use of intrauterine hemostatic balloon. The hemostatic balloon in the uterine cavity currently used clinically is a double-lumen silicone tube, which has two cavities, one cavity is connected to a drainage catheter for drainage of hemorrhage in the uterine cavity, and the other cavity is a balloon that can be injected with fluid. Catheter is used to connect the infusion bag and fill it, or the medical staff uses the syringe to inject the liquid and fill it up, thereby generating a hydrostatic pressure from the uterine cavity outward, which can compress when it is greater than the pressure of the uterine artery The effect of hemostasis, in addition, the filled balloon creates a certain pressure on the uterine wall, which can also stimulate uterine contraction, and also play the role of hemostasis.

At this stage, the traditional intrauterine hemostatic balloon has technical defects, as follows:

1. The actual use of the traditional intrauterine hemostatic balloon is mainly based on ultrasound or direct exploration to evaluate the volume of the uterine cavity, or the operator with operating experience can feel the pressure of each balloon injection, or the medical assistant can help the patient It is impossible to monitor the pressure in the balloon in a stable and real-time manner to see if the pressure in the balloon reaches the target level. If the balloon is overfilled, it may cause the incision of the cesarean section to tear the uterus. Insufficient filling of the balloon may affect the effect of hemostasis. In addition, the dynamic change of uterine contraction force may change the relative pressure formed by the balloon on the uterine wall. The relative pressure from the inside to the outside generated by the balloon during filling may not form effective compression on the uterine wall or cause excessive compression on the uterine wall, which may easily lead to recurrence of bleeding.

2. In the case of rescuing patients with postpartum hemorrhage, it takes a lot of manpower and time to operate the filling of the intrauterine hemostatic balloon. The injection volume is usually controlled at 300ml to 500ml. If there is a shortage of manpower, it cannot be implemented effectively. And stable hemostatic measures.

3. When a traditional intrauterine hemostatic balloon is placed in a cesarean section, the sterile surgical cloth covers the catheter injection port, which makes it extremely inconvenient for medical assistants under the operating table to perfuse the balloon, and it is easy to contaminate the sterile area.

Contents of the invention

The purpose of this utility model is to provide a uterine cavity hemostatic balloon that can monitor the pressure in real time and automatically fill. Determine the hydrostatic pressure for effective hemostasis and avoid balloon overfilling or underfilling.

In order to achieve the above object, the utility model adopts the following technical solutions:

A uterine cavity hemostatic balloon capable of real-time monitoring of pressure and automatic inflation, including a catheter and a balloon wrapped on the outer wall of the catheter, the catheter includes a proximal end and a distal end that run through the balloon, and the The proximal end is communicated with a negative pressure drainage bottle, the distal end is provided with at least one diversion hole along its circumference, the balloon is provided with an infusion tube communicating with its inner cavity, and the end of the infusion tube An infusion bag is arranged in communication, and the infusion tube is covered with a flow rate regulator, and also includes an air bag pressurized bag, an inflatable skin bag and a transparent sealed cylinder, and the air bag pressurized bag is wrapped on the surface of the infusion bag, The air bag pressurized bag communicates with the inflatable skin bag through the first air delivery tube, and the air bag pressurized bag communicates with the transparent sealed cylinder through the second air delivery tube. There is a pressure measurement chamber and an installation chamber, the piston body is arranged in the pressure measurement chamber, the end of the piston body corresponds to the nozzle of the second gas delivery pipe, and the two ends of the piston body are respectively arranged There is a first conductor, the second conductor is arranged on one side of the pressure measuring chamber, and corresponds to the first conductor at one end of the piston body, and the third conductor is arranged on the other side of the pressure measuring chamber One side, and corresponding to the first conductor at the other end of the piston body, the battery is arranged in the installation chamber, and the low-voltage indicator light and the high-pressure indicator light are respectively arranged on the outer side of the installation chamber. , the air bag pressurized bag can drive the piston body to move back and forth in the pressure measuring chamber through the gas flow as the internal pressure changes, so that the second conductor and the third conductor are respectively connected to the first Conductor contact or separation, the low-voltage indicator light can be connected or disconnected with the battery according to the contact or separation between the second conductor and the first conductor through the wire, and the high-voltage indicator light passes through The wire can be connected to or disconnected from the battery according to the contact or separation between the third conductor and the first conductor.

Further, the surface of the airbag pressurization bag is covered with a mesh braid.

Further, a hook is provided on the top of the mesh braided fabric.

Further, the first gas delivery pipe is provided with a gas control valve.

Further, a buzzer is provided on the outer surface of the installation chamber, and the buzzer is respectively connected in series with the battery, the low-voltage indicator light, and the high-voltage indicator light.

Further, the outer surface of the installation chamber is provided with a main power switch, and the main power switch is configured to control the conduction or disconnection of the connection between the low-voltage indicator light, the high-voltage indicator light and the buzzer and the battery respectively. open.

Further, the infusion tube includes a first tube body and a second tube body, the first tube body is set in the catheter, and one end of the first tube body is located in the balloon , the other end of the first tube communicates with one end of the second tube through a pipe joint with a switch, and the other end of the second tube communicates with the infusion bag.

Further, a pressure scale is provided on the outer side of the pressure measuring chamber, and an arrow pointer pointing to the pressure scale is provided on the side of the piston body.

Further, the surface of the catheter is provided with graduation marks.

Beneficial effects of the utility model: the overall design of the hemostatic balloon in the uterine cavity is based on the principle of pressure balance, using the pressure balance between the balloon-infusion bag-airbag pressurized bag, the pressure of the airbag pressurized bag is preset, and the pressure in the balloon is realized. The amount of liquid is automatically filled or reduced to maintain the set hydrostatic pressure for effective hemostasis, to avoid overfilling or underfilling of the balloon, and to use the pressure balance of the balloon-infusion bag-airbag pressurized bag to cause the piston to be in the transparent sealed cylinder The change of the position of the balloon can indirectly realize the real-time observation of the pressure change in the balloon outside the body of the patient. Guaranteed to achieve the set pressure.

Description of drawings

Fig. 1 is a structural schematic diagram of a uterine cavity hemostatic balloon capable of real-time monitoring of pressure and automatic filling according to the present invention.

FIG. 2 is an enlarged schematic view of point A in FIG. 1 .

Detailed ways

The technical solution in the embodiment of the utility model will be described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a uterine cavity hemostatic balloon capable of real-time monitoring of pressure and automatic filling includes a catheter 1 and a balloon 2 wrapped on the outer wall of the catheter 1, and the catheter 1 includes Through the proximal end 1a and the distal end 1b of the balloon 2, the proximal end 1a is communicated with a negative pressure drainage bottle 3, and the distal end 1b is provided with at least one drainage hole 4 along its circumference. The balloon 2 is provided with an infusion tube 5 communicating with its inner cavity, the end of the infusion tube 5 is connected with an infusion bag 6, and the infusion tube 5 is provided with a flow rate regulator 7, which also includes an air bag pressurization Bag 8, inflatable skin bag 9 and transparent sealed cylinder 10, the air bag pressurized bag 8 is wrapped on the surface of the infusion bag 6, the air bag pressurized bag 8 is connected with the inflated air bag 8 through the first air delivery tube 11 The skin bag 9 communicates, and the airbag pressurized bag 8 communicates with the transparent sealed cylinder 10 through the second air delivery tube 12, and the transparent sealed cylinder 10 is provided with a pressure measuring chamber 13 and an installation chamber 14 , the piston body 15 is arranged in the pressure measuring chamber 13, the end of the piston body 15 corresponds to the mouth of the second gas delivery pipe 12, and the two ends of the piston body 15 are respectively provided with first The conductor 16, the second conductor 17 is arranged on one side of the pressure measuring chamber 13, and corresponds to the first conductor 16 at one end of the piston body 15, and the third conductor 18 is arranged in the pressure measuring chamber On the other side of the chamber 13, and corresponding to the first conductor 16 at the other end of the piston body 15, the battery 19 is arranged in the installation chamber 14, and the low-voltage indicator light 20 and the high-voltage indicator light 21 are respectively arranged in the above-mentioned The outer surface of the installation chamber 14, under normal conditions, the airbag pressurized bag 8 can drive the piston body 15 to move back and forth in the pressure measurement chamber 13 through the gas flow as the internal pressure changes, so that The second conductor 17 and the third conductor 18 are respectively in contact with or separated from the first conductor 16, and the described low-voltage indicator light 20 can be connected or separated from the second conductor 17 and the first conductor 16 through a wire. Separated, so that the connection with the battery 19 is conducted or disconnected, and the high-voltage indicator light 21 can be connected or separated from the first conductor 16 according to the contact or separation between the third conductor 18 and the first conductor 16 through the wire, so as to connect with the battery 19 The connection is made or broken.

In this embodiment, first of all, the application of the intrauterine hemostatic balloon can be divided into two situations in the actual field: one: the patient is placed with the balloon 2 after vaginal delivery, and the medical staff clamps the catheter with oval forceps 1, the distal end 1b of the catheter 1 is placed through the vagina and cervix to the bottom of the patient's uterine cavity to ensure that the balloon 2 is located in the patient's uterine cavity, and the proximal end 1a of the catheter 1 is placed outside the patient's body.

Second: place the balloon 2 for the patient during the cesarean section, the medical staff will place the balloon 2 into the patient's uterine cavity through the uterine incision, the distal end 1b of the catheter 1 is placed at the bottom of the patient's uterine cavity, and the proximal end of the catheter 1 1a and the infusion tube 5 are led out of the patient's body through the cervix and vagina.

Based on the above two situations, when the balloon 2 has not been placed in the patient's uterine cavity, adjust the flow rate regulator 7, compress the infusion tube 5, so that the liquid in the infusion bag 6 only fills part of the infusion tube 5, Avoid the flow of liquid to the balloon 2, which is convenient for the medical staff to set up the balloon 2 in the patient's uterine cavity and control the filling of the subsequent injection. When the balloon 2 is placed in the patient's uterine cavity, adjust the flow rate regulator 7 to relax Infusion tube 5, then manually press the inflatable skin bag 9, inflate the air bag pressurized bag 8 through the first air delivery tube 11, inflate the air bag pressurized bag 8 to the set pressure, and the liquid in the infusion bag 6 is in the air bag pressurized bag Under the pressure of 8, it is automatically poured into the balloon 2 through the infusion tube 5. Based on the principle of pressure balance, when the infusion bag 6 and the air bag pressurized bag 8 reach the pressure balance, the filling will automatically stop, and at the same time, the balloon 2 will be in a stable filling state. In this state, the filled balloon 2 can exert a certain pressure on the uterine wall and play a hemostatic effect. When the uterine contraction becomes stronger, the uterine wall will press the balloon 2, and the liquid in the balloon 2 will flow back into the infusion bag 6. When the force of uterine contraction becomes weaker, the liquid in the infusion bag 6 is refilled into the balloon 2 under the pressure of the balloon pressurized bag 8, so as to ensure that the balloon 2 can continuously and stably compress the uterine wall effectively to stop bleeding; It is illustrated that the gas in the airbag pressurization bag 8 will flow into the pressure measurement chamber 13 of the transparent sealed cylinder 10 through the second air delivery pipe 12, and the pressure change in the airbag pressurization bag 8 will cause the piston body 15 to measure Displacement occurs in the pressure chamber 13. At the same time, the medical staff can visually observe the position of the piston body 15 in the transparent sealed cylinder 10, and can judge the pressure in the air bag pressurization bag 8 according to the position of the piston body 15. When the pressure in the air bag pressurizing bag 8 is less than the preset minimum pressure threshold, the first conductor 16 at one end of the piston body 15 moves to the position of the second conductor 17 and contacts the second conductor 17, the first conductor 16. The second conductor 17, the low-voltage indicator light 20 and the battery 19 constitute a energized circuit through wires. The low-voltage indicator light 20 flashes and reminds. When the pressure in the airbag pressurization bag 8 is greater than the preset maximum pressure threshold, The first conductor 16 at the other end of the piston body 15 moves to the position of the third conductor 18 and contacts the third conductor 18, and the first conductor 16, the third conductor 18, the high voltage indicator light 21 and the battery 19 pass through The electric wires form a energized circuit, the high-voltage indicator light 21 flashes and reminds, and the medical staff finds out the cause of the abnormal pressure of the balloon and ensures that the airbag pressurization bag 8 can be inflated to the set pressure, so as to avoid overfilling or underfilling of the balloon 2; It is understood that when the distal end 1b of the catheter 1 is placed at the bottom of the patient's uterine cavity, the diversion hole 4 is used to collect the accumulated blood in the uterine cavity, and the accumulated blood will flow to the uterine cavity due to the negative pressure environment in the uterine cavity. The negative pressure drainage bottle 3 is collected and stored by the negative pressure drainage bottle 3, so as to prevent the hemorrhage in the uterine cavity from affecting the evaluation of uterine contractions and bleeding volume.

The surface of the airbag pressurizing bag 8 is covered with a mesh braid 22 . The mesh braid 22 is used to fix the relative position of the airbag pressurized bag 8 and the infusion bag 6, so as to ensure that the airbag pressurized bag 8 can better wrap the infusion bag 6, and prevent the infusion bag 6 from detaching from the airbag pressurized bag 8 , to achieve continuous and stable compression infusion operations.

A hook 23 is arranged on the top of the mesh braided fabric 22 . The airbag pressurized bag 8 can be hung on the commonly used medical suspender in the hospital or the patient's bed by the hook 23, so that the airbag pressurized bag 8 can be suspended in the air, so as to prevent the airbag pressurized bag 8 from affecting the infusion bag 6 due to external forces. The compression effect, and then affect the filling state of the balloon 2.

The first gas delivery pipe 11 is provided with a gas control valve 24 . The gas control valve 24 can control the conduction between the inflatable bladder 9 and the airbag pressurized bag 8. After the airbag pressurized bag 8 is inflated to the set pressure, the gas control valve 24 can be adjusted to disconnect the inflatable leather bag 9 and the airbag pressurized bag. 8, to avoid excessive inflation of the air bag pressurized bag 8 due to accidental pressing of the inflatable skin bag 9.

The outer surface of the installation chamber 14 is provided with a buzzer 25, and the buzzer 25 is connected in series with the battery 19, the low voltage indicator light 20, and the high voltage indicator light 21 respectively. When the low-voltage indicator light 20 or the high-pressure indicator light 21 is shining, the buzzer 25 will also be triggered simultaneously and send an alarm sound to remind the medical staff.

The outer surface of the installation chamber 14 is provided with a main power switch 26, and the main power switch 26 is configured to control the connection between the low-voltage indicator light 20, the high-voltage indicator light 21 and the buzzer 25 and the battery 19 respectively. on or off. The main power switch 26 is used to control the overall power supply of the battery 19 to the low-voltage indicator light 20, the high-voltage indicator light 21 and the buzzer 25. In the non-use state, the overall circuit can be powered off by the main power switch 26, which is not only convenient for controlling the battery. 19 power supply, and reduce waste of power supply.

The infusion tube 5 includes a first tube body 5a and a second tube body 5b, the first tube body 5a is set in the catheter 1, and one end of the first tube body 5a is located at the In the balloon 2, the other end of the first tube body 5a communicates with one end of the second tube body 5b through a tube joint 5c with a switch, and the other end of the second tube body 5b communicates with the infusion solution. On the bag 6, the flow rate regulator 7 is located on the second pipe body 5b. Because when the balloon 2 is placed in the patient's uterine cavity, the proximal end 1a of the catheter 1 is drawn out of the body after passing through the patient's cervix and vagina, and the first tube body 5a is placed in the catheter 1. The degree only needs to be controlled within the diameter range of the catheter 1 to reduce the discomfort of the patient. Secondly, the separation and combination design of the first tube body 5a and the second tube body 5b can facilitate the placement of the catheter 1 by the medical staff, and the balloon 2 Before placing in the patient's uterine cavity, the first tube body 5a and the second tube body 5b can be separated, the flow rate regulator 7 can be adjusted, and the second tube body 5b can be pressed tightly so that the liquid in the infusion bag 6 can only fill the second tube body 5b , and prevent the liquid from flowing out from the second tube body 5b, while the catheter 1 itself is placed in the patient's uterine cavity with only the first tube body 5a, without dragging the infusion bag 6 due to the movement of the infusion tube 5, the balloon 2 After being placed in the patient's uterine cavity, the other end of the first tube body 5a is led out of the patient's body through the cervix and vagina, and the second tube body 5b can be connected to the first tube body 5a through the tube joint 5c with a switch. Adjust the flow rate regulator 7 again, loosen the second tube body 5b, and then perform the subsequent balloon 2 injection operation. In addition, the switch of the tube joint 5c can also control the flow of liquid between the first tube body 5a and the second tube body 5b. Compared with the flow rate regulator 7, it can control the flow of liquid more accurately and is easy to operate, and the pipe joint 5c with a switch can close the first pipe when the first pipe 5a and the second pipe 5b are separated. The body 5a prevents the liquid in the balloon 2 from flowing out through the first tube body 5a.

A pressure scale 27 is provided on the outer surface of the pressure measurement chamber 13 , and an arrow pointer 28 pointing to the pressure scale 27 is provided on the side surface of the piston body 15 . The combination of the pressure scale 27 and the arrow pointer 28 is designed to detect the pressure in the pressure measurement chamber 13, and provide the pressure value for the medical staff, which not only facilitates the medical staff to more accurately inflate the air bag pressurization bag 8 to the set pressure , and the pressure change in the balloon 2 can be observed in real time outside the patient's body.

The surface of the catheter 1 is provided with scale marks 29 . The scale line 29 can assist in judging whether the placement position of the balloon 2 is accurate, and prevent the balloon 2 from moving down or falling out.

Claims (9)

1. A uterine cavity hemostatic balloon capable of real-time monitoring of pressure and automatic inflation, comprising a catheter (1) and a balloon (2) wrapped on the outer wall of the catheter (1), the catheter (1) It includes a proximal end (1a) and a distal end (1b) that run through the balloon (2), the proximal end (1a) is communicated with a negative pressure drainage bottle (3), and the distal end (1b) is along its circumference There is at least one diversion hole (4), the balloon (2) is provided with an infusion tube (5) communicating with its inner cavity, and the end of the infusion tube (5) is communicated with an infusion bag ( 6), the infusion tube (5) is covered with a flow rate regulator (7), which is characterized in that it also includes an air bag pressurized bag (8), an inflatable skin bag (9) and a transparent sealing cylinder (10), The air bag pressurized bag (8) is wrapped on the surface of the infusion bag (6), and the air bag pressurized bag (8) communicates with the inflatable skin bag (9) through the first air tube (11) , the airbag pressurized bag (8) communicates with the transparent sealed cylinder (10) through the second air delivery pipe (12), and a pressure measuring chamber ( 13) and the installation chamber (14), the piston body (15) is arranged in the pressure measuring chamber (13), and the end of the piston body (15) corresponds to the second gas delivery pipe (12) Nozzle, the two ends of the piston body (15) are respectively provided with a first conductor (16), and the second conductor (17) is provided on one side of the pressure measuring chamber (13), and the corresponding The first conductor (16) at one end of the piston body (15), the third conductor (18) is arranged on the other side of the pressure measuring chamber (13), and corresponds to the other end of the piston body (15) The first electrical conductor (16), the battery (19) is arranged in the described installation chamber (14), the low voltage indicator light (20) and the high voltage indicator light (21) are respectively arranged in the described installation chamber (14 ), under normal conditions, the airbag pressurized bag (8) can drive the piston body (15) to move back and forth in the pressure measuring chamber (13) through gas flow as the internal pressure changes, Thereby make described second electrical conductor (17), the 3rd electrical conductor (18) contact or separate with first electrical conductor (16) respectively, described low-voltage indicator lamp (20) can pass electric wire according to the second electrical conductor (17) contact or separate with the first electrical conductor (16), thereby conducting or disconnecting the connection between the battery (19), and the described high-voltage indicator light (21) can pass through the wire according to the third electrical conductor ( 18) Contact or separation with the first electrical conductor (16), thereby conducting or disconnecting the connection with the battery (19). 2. The intrauterine hemostatic balloon capable of real-time pressure monitoring and automatic filling according to claim 1, characterized in that: the surface of the balloon pressurizing bag (8) is wrapped with a mesh braid (22). 3. The intrauterine hemostatic balloon capable of real-time pressure monitoring and automatic filling according to claim 2, characterized in that: the top of the mesh braided fabric (22) is provided with a hook (23). 4. The intrauterine hemostatic balloon capable of real-time pressure monitoring and automatic filling according to claim 3, characterized in that: the first air delivery tube (11) is provided with a gas control valve (24). 5. The uterine cavity hemostatic balloon capable of real-time pressure monitoring and automatic filling according to claim 1, 2, 3 or 4, characterized in that a buzzer is provided on the outer surface of the installation chamber (14) (25), the buzzer (25) is respectively connected in series with the battery (19), the low voltage indicator light (20), and the high voltage indicator light (21). 6. The intrauterine hemostatic balloon capable of real-time monitoring of pressure and automatic filling according to claim 5, characterized in that: the outer surface of the installation chamber (14) is provided with a main power switch (26), the The main power switch (26) is configured to control the connection between the low voltage indicator light (20), the high voltage indicator light (21) and the buzzer (25) and the battery (19) to be connected or disconnected respectively. 7. The intrauterine hemostatic balloon capable of real-time monitoring of pressure and automatic filling according to claim 6, characterized in that: the infusion tube (5) includes a first tube body (5a) and a second tube body (5b ), the first tube (5a) is set in the catheter (1), one end of the first tube (5a) is located in the balloon (2), and the first The other end of a tube body (5a) communicates with one end of the second tube body (5b) through a pipe joint (5c) with a switch, and the other end of the second tube body (5b) communicates with the infusion bag (6), the flow rate regulator (7) is located on the second pipe body (5b). 8. The intrauterine hemostatic balloon capable of real-time pressure monitoring and automatic filling according to claim 7, characterized in that: a pressure scale (27) is arranged on the outer surface of the pressure measurement chamber (13), and the The side of the piston body (15) is provided with an arrow pointer (28) pointing to the pressure scale (27). 9. The intrauterine hemostatic balloon capable of real-time pressure monitoring and automatic filling according to claim 8, characterized in that: the surface of the catheter (1) is provided with a scale line (29).