WO2023000908A1

WO2023000908A1 - Hemostat having automatic pressure release function

Info

Publication number: WO2023000908A1
Application number: PCT/CN2022/100602
Authority: WO
Inventors: 阮渊; 廉正刚; 高微
Original assignee: 阮渊
Priority date: 2021-07-20
Filing date: 2022-06-23
Publication date: 2023-01-26
Also published as: CN215018329U

Abstract

A hemostat having an automatic pressure release function, comprising a connecting component (1), an inflatable bladder (2), a medium feeding device (100), and a pressure release device (200). The connecting component (1) is configured to connect to a part to be pressed of a patient; the inflatable bladder (2) is connected to the connecting component (1) and located between the connecting component (1) and the part to be pressed; the medium feeding device (100) is communicated with the inflatable bladder (2) and is configured to feed a medium into the inflatable bladder (2), so that the inflatable bladder (2) inflates and presses the part to be pressed; and the pressure release device (200) has a pressure release channel communicated with the inflatable bladder (2), wherein the pressure release channel is connected to a pressure release film (3), and the pressure release film (3) is provided with a pressure release hole for slowly releasing the medium in the inflatable bladder (2). The hemostat can automatically release the medium in the inflatable bladder, thereby avoiding tedious operations for manual deflation and pressure reduction, and improving the convenience of use.

Description

self-relieving hemostat

technical field

The utility model relates to a hemostatic device for automatically releasing pressure.

Background technique

At present, hemostasis is required at the puncture site after medical treatment and examination are completed. Hemostasis needs to be maintained for a long time and the pressure of hemostasis needs to be gradually reduced to achieve effective hemostasis while avoiding excessive compression of blood vessels. In the prior art, the compressive force for hemostasis is generated by inflating the balloon, but in order to reduce the compressive force for hemostasis, medical personnel are required to regularly draw back the gas in the balloon through the syringe through the one-way valve to realize the expansion of the balloon. Body deflation, the deflation process is completely dependent on medical staff to do it manually, which is very inconvenient to use.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a hemostatic device with automatic pressure release, which can automatically release the medium in the expansion capsule, avoid the cumbersome operation of manual deflation and decompression, and improve the efficiency of use. convenience.

In order to solve the above-mentioned technical problems, the technical solution of the present utility model is: an automatic pressure-releasing hemostat, which includes:

a connecting part, the connecting part is used to be connected to the patient's part to be compressed;

an inflatable balloon, the inflatable balloon is connected to the connecting part and is located between the connecting part and the site to be compressed;

a medium-filling device, the medium-filling device is in communication with the inflation balloon and is used to fill the inflation balloon with a medium to expand the inflation balloon and compress the site to be compressed;

A pressure release device, the pressure release device has a pressure release channel communicated with the expansion bag body, the pressure release channel is connected with a pressure release film, and the pressure release film is provided with a device for slowly releasing the expansion bag Pressure relief holes for media in the body.

A specific solution of the connection part is further provided, the connection part is a band for binding on the site to be compressed, and the inflation balloon is built in the band.

A specific solution of the pressure release film is further provided, the pressure release holes are at least one of nanopores and micropores, and/or the pressure release film is a polymer film, a metal film or a biological film.

A specific solution of the pressure relief device is further provided, and the pressure relief device includes a pressure relief shell;

at least a portion of the pressure relief passage is located in the pressure relief housing;

The pressure relief membrane is attached to the pressure relief housing and is at least partially located in a pressure relief channel within the pressure relief housing.

Further provide a specific solution of the pressure release shell, the pressure release shell includes an upper shell and a lower shell connected to the upper shell, the pressure release film is connected to the upper shell and the Between the lower shells.

Further, the pressure relief device also includes an overflow capsule; wherein,

One end of the pressure release channel is directly or indirectly communicated with the inflation balloon;

The other end of the pressure relief channel communicates with the overflow capsule.

A specific solution of the medium-filled device is further provided, and the medium-filled device includes:

A medium-filled tube, one end of the medium-filled tube directly or indirectly communicates with the inflation bladder, and the other end of the medium-filled tube is suitable for accessing the medium;

A one-way valve, the one-way valve is connected in the medium-filled tube and is used to prevent the medium in the expansion bag from flowing out of the medium-filled tube.

Further, in order to sense the pressure inside the expansion bag, a pressure-sensing bag located between the one-way valve and the inflation bag is connected to the inflatable tube for sensing the pressure inside the inflation bag.

Further, both the medium filling device and the pressure releasing device communicate with the inflation balloon through a catheter assembly.

A specific solution of the catheter assembly is further provided, the catheter assembly includes a catheter and a multi-way joint; wherein,

One end of the catheter communicates with the inflation balloon;

The first interface in the multi-way joint is connected to the other end of the catheter;

The second interface in the multi-way joint is connected to the medium-filled device;

The third interface in the multi-way joint is connected with the pressure relief channel in the pressure relief device.

After adopting the above-mentioned technical solution, after first connecting the connecting part to the patient’s part to be compressed, the inflation balloon is filled with air through the filling medium device to inflate the inflation balloon, and then through The expansion capsule presses the place to be compressed and plays the function of hemostasis. Then the air in the expansion bag will slowly release out from the pressure release hole on the pressure release membrane in the pressure release channel, so that the pressure in the expansion bag and the volume of the expansion bag will gradually It becomes smaller, which in turn can reduce the pressure on the place of pressure. Wherein, the pressure release hole slowly releases the air in the expansion bag means that the air in the expansion bag can be released from the pressure release hole at a very slow speed so that the expansion bag can maintain a certain The pressure in the expansion capsule is slowly reduced while the pressure is applied, so as to achieve the functions of hemostasis and pressure release; through the above structure, the medium in the expansion capsule is automatically released, avoiding the cumbersome operation of manual deflation and decompression, and improving the Ease of use. And you can choose to install an overflow bladder according to clinical needs, so that when the pressure in the overflow bladder is the same as the pressure in the expansion bladder, the medium in the expansion bladder will no longer overflow, and at this time the pressure of the expansion bladder The pressure is constant, and furthermore, the size of the expanded capsule is constant, and the compressive force at the site to be compressed is constant, thereby realizing the control of the end-state pressure.

Description of drawings

Fig. 1 is a schematic structural view of the hemostat with automatic pressure release of the present invention.

detailed description

In order to make the content of the utility model more clearly understood, the utility model will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

As shown in Figure 1, a hemostat with automatic pressure release includes:

A connecting part 1, the connecting part 1 is used to connect to the patient's part to be compressed;

An expansion bag 2, the expansion bag 2 is connected to the connection part 1 and located between the connection part 1 and the site to be compressed;

A medium-filling device 100, the medium-filling device 100 communicates with the inflation balloon 2 and is used to fill the inflation balloon 2 with a medium to expand the inflation balloon 2 and compress the site to be compressed;

A pressure release device 200, the pressure release device 200 has a pressure release channel communicated with the expansion bag 2, a pressure release film 3 is connected to the pressure release channel, and a pressure release film 3 is provided on the pressure release film 3 for slowly Release the pressure release hole of the medium in the expansion bag 2; specifically, the medium can be air, first connect the connecting part 1 to the patient’s part to be compressed, and then pass through the medium-filled device 100 to The inflation balloon 2 is filled with air to inflate the inflation balloon 2, and then the inflation balloon 2 presses the place to be compressed and plays the function of hemostasis. Then the air in the expansion bag 2 will slowly release out from the pressure release hole on the pressure release membrane 3 in the pressure release channel, so that the pressure in the expansion bag 2 and the pressure in the expansion bag The volume of 2 gradually becomes smaller, thereby reducing the oppressive force on the place to be oppressed. Further specifically, the slow release of the air in the expansion bladder 2 from the pressure release hole means that the air in the expansion bladder 2 can be released from the pressure release hole at a very slow speed to make the expansion bladder 2 2. The pressure in the expansion balloon 2 can be slowly reduced while ensuring a certain pressure, so as to achieve the functions of hemostasis and pressure release; wherein, the place to be compressed is near the place where hemostasis is required.

As shown in FIG. 1 , the connecting part 1 may be a band for binding on the site to be compressed, and the inflation balloon 2 may be built in the band.

Specifically, the pressure release hole may be at least one of a nanopore and a micropore, and the pressure release film 3 may be a polymer film or a metal film or a biofilm; in this embodiment, the pressure release film 3 is a biofilm, and the nanopores and micropores are distributed on the pressure release membrane 3 according to specific spatial positions.

As shown in FIG. 1 , the pressure relief device 200 may include a pressure relief shell 4;

At least a part of the pressure relief channel is located in the pressure relief housing 4;

The pressure release film 3 is connected to the pressure release shell 4 and at least partly located in the pressure release channel in the pressure release shell 4; specifically, the pressure release shell 4 is oblate, and the pressure release The shell 4 is made of polymer material, plastic material or rubber material; in this embodiment, the pressure release shell 4 is made of polymer material.

As shown in Figure 1, the pressure release shell 4 may include an upper shell and a lower shell connected to the upper shell, the pressure release membrane 3 is connected to the upper shell and the lower shell between; specifically, the upper casing and the lower casing are sealed and connected together, and the upper casing presses the pressure release film 3 onto the lower casing.

As shown in Figure 1, the pressure relief device 200 may also include an overflow capsule 5; wherein,

One end of the pressure release channel communicates directly or indirectly with the expansion bladder 2;

The other end of the pressure relief channel communicates with the overflow capsule 5; in this embodiment, the pressure relief device 200 further includes a connecting pipe 11, and one end of the connecting pipe 11 is connected to the lower casing The other end of the connecting pipe 11 is connected with the overflow capsule 5 . Specifically, the overflow bladder 5 is used to receive the medium slowly flowing out from the expansion bladder 2, and when the pressure in the overflow bladder 5 is the same as the pressure in the expansion bladder 2, the expansion bladder The medium in the body 2 will no longer overflow, and at this time the pressure of the inflated sac 2 remains constant, and then the size of the inflated sac 2 remains constant, and the compressive force at the site to be compressed remains unchanged, realizing the end state Stress control.

More specifically, if the overflow bladder 5 is not connected, the medium in the expansion bladder 2 will continue to overflow into the atmosphere until the pressure in the expansion bladder 2 becomes zero.

As shown in Figure 1, the medium-filled device 100 may include:

A medium-filled tube 6, one end of the medium-filled tube 6 directly or indirectly communicates with the inflation bladder 2, and the other end of the medium-filled tube 6 is suitable for accessing the medium;

A one-way valve 7 , the one-way valve 7 is connected in the medium-filling tube 6 and is used to prevent the medium in the expansion bag 2 from flowing out of the medium-filling tube 6 .

As shown in FIG. 1 , a pressure sensing bag 8 located between the one-way valve 7 and the expansion bag body 2 and used for sensing the pressure inside the expansion bag body 2 may be connected to the filling medium tube 6 ; Specifically, the pressure in the inflation balloon body 2 can be judged through the pressure sensing capsule 8 .

As shown in FIG. 1 , both the medium filling device 100 and the pressure releasing device 200 communicate with the inflation balloon 2 through a catheter assembly.

As shown in Figure 1, the catheter assembly may include a catheter 9 and a multi-way connector 10; wherein,

One end of the catheter 9 communicates with the inflation balloon 2;

The first interface in the multiway connector 10 is connected to the other end of the conduit 9;

The second interface in the multi-way joint 10 is connected to the medium-filled device 100;

The third interface in the multi-way joint 10 is connected to the pressure relief channel in the pressure relief device 200; in this embodiment, the multi-way joint 10 can be but not limited to a three-way joint, and the second The interface is connected with the medium-filled pipe 6, and the third interface is connected with the upper casing. Specifically, the strap is bound on the patient's body through an adhesive component, and the adhesive component 12 may be, but not limited to, a Velcro tape.

The working principle of the utility model is as follows:

Firstly, after connecting the connection part 1 to the patient's site to be compressed, air is filled into the inflation balloon 2 through the filling medium device 100 to expand the inflation balloon 2, and then the inflation balloon 2 Press the place to be compressed and play the function of hemostasis. Then the air in the expansion bag 2 will slowly release out from the pressure release hole on the pressure release membrane 3 in the pressure release channel, so that the pressure in the expansion bag 2 and the pressure in the expansion bag The volume of 2 gradually becomes smaller, thereby reducing the oppressive force on the place to be oppressed. Wherein, the pressure release hole slowly releases the air in the expansion bag 2 means that the air in the expansion bag 2 can be released from the pressure release hole at a very slow speed so that the expansion bag 2 can While ensuring a certain pressure, the pressure in the expansion bladder 2 is slowly reduced to achieve the functions of hemostasis and pressure release; through the above structure, the medium in the expansion bladder 2 is automatically released, avoiding the need for manual deflation and decompression The cumbersome operation improves the convenience of use. And the overflow capsule body 5 can be selected and installed according to clinical needs, so that when the pressure in the overflow capsule body 5 is the same as the pressure in the expansion capsule body 2, the medium in the expansion capsule body 2 will no longer overflow. The pressure of the expansion capsule 2 is constant, and the size of the expansion capsule 2 is constant, and the compressive force at the site to be compressed is constant, thereby realizing the control of the end-state pressure.

The specific embodiments described above have further described the technical problems, technical solutions and beneficial effects solved by the utility model in detail. It should be understood that the above descriptions are only specific embodiments of the utility model and are not intended to be used To limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

An automatic pressure-releasing hemostat is characterized in that it comprises:

A connecting part (1), the connecting part (1) is used to be connected to the patient's part to be compressed;

an expansion bladder (2), the expansion bladder (2) is connected to the connection part (1);

A medium-filling device (100), the medium-filling device (100) communicates with the expansion bladder (2) and is used for filling medium into the expansion bladder (2) to make the expansion bladder (2) dilating and compressing the site to be compressed;

A pressure release device (200), the pressure release device (200) has a pressure release channel in communication with the expansion bladder (2), the pressure release channel is connected with a pressure release film (3), the release The pressure film (3) is provided with a pressure release hole for slowly releasing the medium in the expansion bag (2).
The hemostat with automatic pressure release according to claim 1, characterized in that, the connecting part (1) is a bandage for binding on the site to be compressed, and the expansion bladder (2) is built into the strapping.
The hemostat with automatic pressure release according to claim 1, characterized in that, the pressure release hole is at least one of nanopore and micropore, and/or the pressure release film (3) is a polymer film Or metal film or biofilm.
The hemostat with automatic pressure release according to claim 1, characterized in that,

The pressure relief device (200) comprises a pressure relief shell (4);

At least a part of the pressure relief channel is located in the pressure relief housing (4);

The pressure release film (3) is connected to the pressure release housing (4) and is at least partially located in a pressure release channel in the pressure release housing (4).
The hemostat with automatic pressure release according to claim 4, characterized in that, the pressure release shell (4) comprises an upper shell and a lower shell connected to the upper shell, and the pressure release film ( 3) Connected between the upper case and the lower case.
The hemostat with automatic pressure release according to claim 1, characterized in that, the pressure release device (200) further comprises an overflow capsule (5); wherein,

One end of the pressure relief channel communicates directly or indirectly with the expansion bladder (2);

The other end of the pressure release channel communicates with the overflow capsule (5).
The hemostat with automatic pressure release according to claim 1, characterized in that, the medium-filled device (100) comprises:

A medium-filled tube (6), one end of the medium-filled tube (6) directly or indirectly communicates with the inflation bladder (2), and the other end of the medium-filled tube (6) is suitable for accessing said medium;

A one-way valve (7), the one-way valve (7) is connected in the medium-filling tube (6) and is used to prevent the medium in the expansion bag (2) from passing through the medium-filling tube (6) outflow.
The hemostatic device with automatic pressure release according to claim 7, characterized in that, the medium-filled tube (6) is connected with a valve located between the one-way valve (7) and the expansion bladder (2) and used for The pressure-sensing bag (8) of feeling the pressure situation in the described expansion bag body (2).
The hemostat with automatic pressure release according to claim 1, characterized in that, both the medium filling device (100) and the pressure release device (200) communicate with the inflation balloon (2) through a catheter assembly .
The hemostat with automatic pressure release according to claim 9, wherein the catheter assembly includes a catheter (9) and a multi-way joint (10); wherein,

One end of the catheter (9) communicates with the inflation balloon (2);

The first interface in the multiway joint (10) is connected to the other end of the conduit (9);

The second interface in the multi-way joint (10) is connected to the medium filling device (100);

The third interface in the multi-way joint (10) is connected with the pressure relief channel in the pressure relief device (200).