CN217525253U

CN217525253U - First-aid hemostatic balloon

Info

Publication number: CN217525253U
Application number: CN202220813136.4U
Authority: CN
Inventors: 陈行; 王一舟; 耿磊; 曹向宇
Original assignee: Beihang University
Current assignee: Beihang University
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-10-04
Anticipated expiration: 2032-04-08

Abstract

The utility model provides a first aid hemostasis sacculus, including first pipe, ultrasonic probe has been drawn forth to the front end tip of first pipe, be close to on the first pipe ultrasonic probe one end is equipped with aerifys the sacculus, be in on the first pipe pressure sensor is all installed to both sides around aerifing the sacculus, one-way inflation valve is installed to the tail end of first pipe, one-way inflation valve with aerify the sacculus intercommunication, set up pressure sensor respectively through aerifing the sacculus both sides on first pipe, use one-way inflation valve to aerify the sacculus and make its inflation, can increase the damping of blood flow after the sacculus inflation, and then reduce the blood flow and block the blood flow even, realize hemostatic effect. The expansion degree of the balloon can be judged according to the pressure indication difference fed back by the front pressure sensor and the rear pressure sensor, bleeding and hemostasis conditions are mapped through the function relation of experimental fitting, and the balloon is more portable compared with the traditional hemostasis balloon, and does not need to be matched with an external radiography machine for assistance.

Description

First-aid hemostatic balloon

Technical Field

The utility model belongs to the technical field of hemostasis device technique and specifically relates to a first aid hemostasis sacculus is related to.

Background

Because the blood vessel has elasticity, can contract into muscle after the blood vessel fracture, so the bleeding that juncture department produced because the blood vessel fracture often can't use the mode of oppression to effectively stanch, so generally adopt the mode of expansion sacculus to stanch, can increase the damping of blood flow after the sacculus inflation, and then reduce the blood flow and block the blood flow even, realize hemostatic effect. The use of current hemostasis expansion sacculus needs to cooperate external radiography machine to observe the expansion of sacculus and the hemostasis condition, but external radiography device is bulky, often needs it to have the portability in the first aid field. Therefore, how to perform the balloon dilatation operation without the assistance of an in vitro contrast machine and improve the portability of the whole system becomes a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the tradition hemostasis sacculus needs the short slab of external radiography machine, the inflation condition of sacculus is judged to the pressure differential through the pressure sensor feedback, improve equipment's portability greatly.

The utility model provides a first aid hemostasis sacculus, including first pipe, ultrasonic probe has been drawn forth to the front end tip of first pipe, be close to on the first pipe ultrasonic probe one end is equipped with aerifys the sacculus, be in on the first pipe pressure sensor is all installed to both sides around the sacculus of aerifing, one-way inflation valve is installed to the tail end of first pipe, one-way inflation valve with aerify the sacculus intercommunication.

Furthermore, a branch pipe is arranged at the tail end of the first conduit, the one-way inflation valve is installed at the end part of the branch pipe, and the first conduit and the branch pipe are integrally formed.

Furthermore, a main cavity channel, a guide wire cavity channel and an inflation cavity channel are arranged inside the first catheter, a guide wire and the ultrasonic probe are arranged in the main cavity channel, a guide wire used for being connected with the pressure sensor is arranged in the guide wire cavity channel, and the inflation cavity channel is communicated with the one-way inflation valve and the inflation balloon.

Furthermore, one end of the wire is connected with the pressure sensor, and the other end of the wire is connected to an external signal collector.

Furthermore, the first catheter is provided with mounting grooves on two sides of the inflatable balloon, the pressure sensor is mounted in the mounting grooves, and the two mounting grooves are communicated with the guide wire cavity channel.

Furthermore, pressure sensor includes flexible silicon membrane panel and pressure reference room, the mounting groove bottom is fixed with the base plate, the top surface of base plate is equipped with the solder joint paster, the pressure reference room sets up flexible silicon membrane panel with between the base plate, the top of flexible silicon membrane panel evenly is equipped with a plurality of chip electrode, the chip electrode with the solder joint paster electricity is connected.

Further, the base plate by extend to in the mounting groove the port department of wire chamber way, the wire is for setting up draw forth the circuit on the base plate.

Further, the sensor is a piezoresistive pressure sensor.

Further, the first catheter and the inflatable balloon are both made of PVC, PU, silica gel or nylon materials.

Further, the substrate is made of a polyimide material.

The technical scheme of the utility model through providing a first aid hemostasis sacculus, set up pressure sensor respectively through the sacculus both sides of aerifing on first pipe, use one-way inflation valve to aerify the sacculus and make its inflation, can judge the inflation degree of sacculus and can map the bleeding and the hemostasis condition through the functional relation of experiment fitting according to the pressure registration difference of two pressure sensor feedbacks around, it is more portable for traditional hemostasis sacculus, need not to cooperate external radiography machine to assist.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a sectional view of a first conduit in the pressure sensor portion of the present invention;

description of reference numerals: 1-a first catheter, 2-a mounting groove, 3-a pressure sensor, 301-a flexible silicon membrane panel, 302-a pressure reference chamber, 303-a chip electrode, 4-an inflatable balloon, 5-a branch pipe, 6-an inflatable cavity channel, 7-a one-way inflation valve, 8-a main cavity channel, 9-a lead cavity channel, 10-a substrate, 1001-a welding spot patch and 1002-a lead.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1-3, an emergency hemostasis balloon comprises a first catheter 1, an ultrasonic probe is led out from the front end of the first catheter 1, an inflatable balloon 4 is arranged on the first catheter 1 near one end of the ultrasonic probe, pressure sensors 3 are arranged on the first catheter 1 on the front side and the rear side of the inflatable balloon 4, mounting grooves 2 are arranged on the first catheter 1 on the two sides of the inflatable balloon 4, the pressure sensors 3 are arranged in the mounting grooves 2, the sensors are piezoresistive pressure sensors 3, a one-way inflation valve 7 is arranged at the tail end of the first catheter 1, and the one-way inflation valve 7 is communicated with the inflatable balloon 4.

A branch pipe 5 is arranged at the tail end of the first conduit 1, a one-way inflation valve 7 is installed at the end part of the branch pipe 5, and the first conduit 1 and the branch pipe 5 are integrally formed; a main cavity channel 8, a guide wire 1002 cavity channel 9 and an inflation cavity channel 6 are arranged in the first guide pipe 1, a guide wire and an ultrasonic guide pipe connected with an ultrasonic probe are arranged in the main cavity channel 8, the ultrasonic probe is guided into the front end of the first guide pipe 1 through the main cavity channel 8 by using the ultrasonic guide pipe when the blood vessel puncture needle is used, the ultrasonic probe is used for obtaining image information in the blood vessel, and the guide wire is used for supporting the first guide pipe 1 and plays a role in supporting and guiding.

Two mounting grooves 2 all communicate with wire 1002 chamber 9, and wire 1002 one end is connected with pressure sensor 3, and the other end of wire 1002 is led out from the afterbody of first pipe 1 through wire 1002 chamber 9 and is connected to the signal collector of outside, shows the pressure registration through the signal collector, and wherein the signal collector belongs to prior art, and no longer the description herein. The expansion condition of the inflatable balloon 4 in the blood vessel is judged through the pressure difference fed back by the two pressure sensors 3. The lead 1002 comprises three leads 1002 which are respectively used as a signal output anode, a signal output cathode and a power line, and the three leads 1002 are led out of the first conduit 1 through a lead 1002 cavity 9.

The inflation cavity 6 is communicated with the one-way inflation valve 7 and the inflatable saccule 4, the inflatable saccule 4 is inflated through the one-way valve to be expanded during hemostasis, and after the hemostasis is finished, the one-way inflation valve 7 is screwed off the branch pipe 5 to deflate the inflatable saccule 4.

The pressure sensor 3 comprises a flexible silicon membrane panel 301 and a pressure reference chamber 302, a substrate 10 is fixed at the bottom of the mounting groove 2, the substrate 10 is made of polyimide materials, and the top surface of the substrate 10 is provided with a welding spot patch 1001; the pressure reference chamber 302 is arranged between the flexible silicon membrane panel 301 and the substrate 10, four chip electrodes 303 are uniformly arranged at the top end of the flexible silicon membrane panel 301, the chip electrodes 303 and the welding spot patches 1001 are connected by an aluminum wire through a wire bonding technology, the signal connection between the pressure sensor chip and the substrate 10 is realized, polydimethylsiloxane is required to cover the periphery of the substrate 102 in the mounting groove 2 for insulation protection, and then a parylene coating is deposited to play a role in water prevention and corrosion prevention.

The pressure reference chamber 302 is vacuum pressure, the silicon film surface of the flexible silicon film panel 301 senses pressure and sinks towards the pressure reference chamber 302, so that the resistance on the flexible silicon film panel 301 is changed, the output voltage is changed, the pressure indication of feedback output is changed, and the expansion condition of the inflatable balloon 4 is judged through the change of the pressure difference.

Example 2

Compared with embodiment 1, the present embodiment is technically characterized in that: the base plate 10 extends to the port department of wire 1002 chamber way from the mounting groove 2, and wire 1002 is the extraction circuit of setting on base plate 10, and the terminal and the signal lead of base plate 10 pass through the solder joint to be connected, is connected to the signal collector by the external lead wire, avoids the solder joint to drop inside and causes the maintenance difficulty, and the base plate is made by the polyimide material, can bend along with first pipe 1. The other technical features of this embodiment are completely the same as those of embodiment 1, and are not described herein again.

The pressure difference between the front end and the rear end can not only be used for feeding back the expansion condition of the saccule after calibrating different expansion degrees of the saccule through a pre-experiment, but also be used for judging the bleeding condition through a function relation of experimental fitting. The dual functions of balloon expansion detection and hemostasis effect are realized. The specific functional relation is as follows:

wherein: p ₁ Is front end pressure, P ₂ Rear end pressure, R flow resistance, R vessel cross-section radius, l vessel length, Q ₂ σ is the fluid viscosity coefficient for the outlet flow.

The working principle is as follows:

an operator can judge the expansion degree of the inflatable balloon 4 according to the pressure difference fed back by the two pressure sensors 3 in the process, so as to ensure that the blood vessel cannot be completely blocked when the inflatable balloon 4 is expanded, prevent the necrosis at the rear end, and also cause unsatisfactory hemostatic effect because the inflatable balloon is too small to expand, and judge whether the inflatable balloon 4 is kept in a proper expansion size or not according to the pressure difference fed back by the two pressure sensors 3, thereby realizing controllable blood loss. After the wound is treated, the one-way inflation valve 7 can be unscrewed to realize deflation of the inflatable balloon 4, the hemostatic balloon can accurately judge the expansion size of the inflatable balloon 4 without depending on an external radiography machine, the bleeding condition is mapped through the function relation of experimental fitting, and the convenience is greatly improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a first aid hemostasis sacculus, its characterized in that, includes first pipe, ultrasonic probe has been drawn forth to the front end tip of first pipe, be close to on the first pipe ultrasonic probe one end is equipped with inflates the sacculus, be in on the first pipe pressure sensor is all installed to both sides around inflating the sacculus, one-way inflation valve is installed to the tail end of first pipe, one-way inflation valve with inflate the sacculus intercommunication.

2. The emergency hemostatic balloon of claim 1, wherein the first catheter has a branch tube at the end, the one-way inflation valve is mounted at the end of the branch tube, and the first catheter and the branch tube are integrally formed.

3. The first-aid hemostatic balloon according to claim 1, wherein a main channel, a guide wire channel and an inflation channel are arranged inside the first catheter, a guide wire and the ultrasonic probe are arranged inside the main channel, a guide wire for connecting the pressure sensor is arranged inside the guide wire channel, and the inflation channel is communicated with the one-way inflation valve and the inflation balloon.

4. The rescue hemostasis balloon of claim 3, wherein one end of the wire is connected to the pressure sensor and the other end of the wire is connected to an external signal collector.

5. The emergency hemostasis balloon of claim 4, wherein the first catheter has mounting slots disposed on both sides of the inflatable balloon, the pressure sensor being mounted in the mounting slots, both mounting slots being in communication with the guidewire lumen.

6. The emergency hemostasis balloon according to claim 5, wherein the pressure sensor comprises a flexible silicon membrane panel and a pressure reference chamber, a substrate is fixed at the bottom of the mounting groove, a welding spot patch is arranged on the top surface of the substrate, the pressure reference chamber is arranged between the flexible silicon membrane panel and the substrate, a plurality of chip electrodes are uniformly arranged at the top end of the flexible silicon membrane panel, and the chip electrodes are electrically connected with the welding spot patch.

7. The rescue hemostasis balloon of claim 6, wherein the base plate extends from within the mounting groove to a port of the wire channel, the wire being an outgoing circuit disposed on the base plate.

8. The emergency hemostasis balloon of claim 1, wherein the sensor is a piezoresistive pressure sensor.

9. The emergency hemostasis balloon of claim 1, wherein the first catheter and the inflatable balloon are each made of PVC, PU, silicone, or nylon material.

10. The rescue hemostasis balloon of claim 6, wherein the substrate is made of a polyimide material.