A hemostatic device for acute gastrointestinal bleeding

Abstract

The application discloses a hemostatic device for acute gastrointestinal hemorrhage, and relates to the field of medical devices, which comprises a hemostatic capsule, a drug releasing mechanism is arranged in the hemostatic capsule, the drug releasing mechanism can directly release hemostatic liquid to the gastrointestinal hemorrhage position, an outer spray hole is arranged on the surface of the hemostatic capsule at the position of the drug releasing mechanism, the drug releasing mechanism comprises a cartridge fixed to the inside of the hemostatic capsule and used for storing the hemostatic liquid, a gap is formed between the cartridge and the outer wall of the hemostatic capsule, a drug releasing space is formed, the bottom of the cartridge is communicated with the drug releasing space through a drug releasing port, a movable shutter is arranged in the drug releasing space, and an inner spray hole is formed in the surface of the shutter. The application can be used for the patients with acute gastrointestinal hemorrhage under the condition of lacking operation or in an emergency, does not need a gastroscopy operation, can preliminarily perform hemostasis on the gastrointestinal hemorrhage position of the patient through the hemostatic capsule, and creates time and conditions for the preparation of subsequent operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a hemostatic device for acute gastrointestinal bleeding. BACKGROUND

[0002] It is known that acute gastrointestinal bleeding is a serious medical emergency, usually manifested as symptoms such as vomiting blood, black stool or intestinal bleeding, which can be caused by a variety of factors, including peptic ulcer, esophageal varices, tumors, infections, etc. Due to the complex structure of the digestive tract and the diversification of the causes, rapid and effective hemostatic measures are crucial for saving the lives of patients.

[0003] The existing gastrointestinal hemostatic methods usually rely on endoscopic surgery, such as gastroenteroscopy, which can directly observe the bleeding site under endoscopy and perform hemostasis by means of electrocoagulation, injection of hemostatic agents, or clipping of bleeding points, etc. However, this method has several significant problems: (1) Equipment and condition limitations: due to the complexity of the digestive tract and the concealment of certain lesions, the doctor may need to spend a lot of time performing endoscopy to determine where the bleeding is located, which may delay treatment in emergency situations, and not all medical institutions are equipped with high-end endoscopic equipment, especially in remote areas or emergency situations, the lack of appropriate equipment and professionals may result in patients being unable to receive endoscopic treatment in a timely manner, in addition, acute gastrointestinal bleeding patients often need immediate intervention, but the preparation time for endoscopic surgery may not meet this urgent demand.

[0004] (2) Patient tolerance problems: for some patients, especially critically ill patients, the elderly or patients with other complications, endoscopy has poor tolerance and may not be able to withstand the operation under the endoscope. SUMMARY

[0005] (I) Invention purpose

[0006] In view of the above, the purpose of the present application is to provide a hemostatic device for acute gastrointestinal bleeding, which can be used in the absence of surgical conditions or in emergency situations for patients with acute gastrointestinal bleeding without the need for gastroscopy, and through the hemostatic capsule, the bleeding site in the patient's digestive tract can be preliminarily hemostatic, creating time and conditions for subsequent surgical preparation.

[0007] (II) Technical solution

[0008] In order to achieve the above technical purpose, the present application provides a hemostatic device for acute gastrointestinal bleeding, which comprises a hemostatic capsule, the inside of the hemostatic capsule is provided with a drug release mechanism, through which the hemostatic drug liquid can be directly released to the bleeding site in the digestive tract;

[0009] The outer spout hole of the hemostatic capsule surface is arranged at the position of the drug release mechanism, the drug release mechanism comprises a cartridge fixed to the inside of the hemostatic capsule for storing hemostatic liquid, a gap is formed between the cartridge and the outer wall of the hemostatic capsule, forming a drug release space, the bottom of the cartridge is communicated with the drug release space through a drug release port, a movable shutter is arranged in the drug release space, the surface of the shutter is provided with an inner spout hole, and a pushing assembly is arranged in the cartridge and can extrude and push the hemostatic liquid to enter the drug release space;

[0010] The shutter can be moved to a first position and a second position under external constraint, the first position is a drug release position in which the inner spout hole on the shutter is completely coincided with the outer spout hole of the hemostatic capsule surface, and the second position is a closed position in which the inner spout hole on the shutter is not completely coincided with the outer spout hole of the hemostatic capsule surface.

[0011] As a further description of the above technical solution: an electric push rod with an arc structure is arranged in the drug release space, the piston rod of the electric push rod is connected with one side of the shutter, and under the pushing of the electric push rod, the shutter can be moved to the first position or the second position; it should be noted that the outer wall of the shutter is attached to the inner wall of the hemostatic device, and a channel capable of allowing the hemostatic liquid to flow is formed between the inner wall of the shutter and the inner wall of the drug release space.

[0012] Specifically, in order to form the channel capable of allowing the hemostatic liquid to flow between the inner wall of the shutter and the inner wall of the drug release space, limit blocks are arranged at four corner positions of the inner wall of the shutter, the inner wall of the drug release space is provided with limit sliding grooves matched with the limit blocks at the positions of the limit blocks, and the limit blocks are slidingly assembled in the limit sliding grooves; when the shutter moves, the limit blocks slide in the limit sliding grooves, so that the stability of the shutter movement can be ensured, and under the abutting action of the limit blocks, the channel capable of allowing the hemostatic liquid to flow is formed between the inner wall of the shutter and the inner wall of the drug release space.

[0013] As a further description of the above technical solution: the pushing assembly comprises a pressing plate and a gas cylinder, the gas cylinder is installed above the cartridge, the pressing plate is movably assembled in the inside of the cartridge, the piston rod of the gas cylinder extends into the cartridge and is connected with the pressing plate, therefore, when the gas cylinder operates and pushes the pressing plate to move downward, the liquid in the cartridge is extruded and injected into the drug release space through the drug release port, and then the liquid is sprayed to the digestive tract bleeding position of the patient with a certain kinetic energy, so that the effect of inhibiting bleeding is achieved.

[0014] As a further description of the above technical solution: the release space is provided with a plurality of partition ridges in the axial direction, the release space is divided into a plurality of independent areas by the plurality of partition ridges, the bottom of each area is provided with a release port in communication with the inside of the cartridge, the hemostatic capsule is provided with an outer injection hole corresponding to each area, and each area is provided with an independent shutter and an electric push rod for controlling the movement of the shutter. Based on this, when the hemostatic capsule moves to the bleeding position, only the shutter in the release space corresponding to the angle of the bleeding position moves to accurately release the medicine.

[0015] As a further description of the above technical solution: the hemostatic capsule comprises a shell, a transparent front cover in a hemispherical structure arranged at the front end of the shell, and a tail cover in a hemispherical structure detachably mounted at the rear end of the shell, so that the discomfort of the hemostatic device moving in the digestive tract of the patient can be reduced.

[0016] As a further description of the above technical solution: the hemostatic capsule is provided with a carrier plate inside the front end, the edge of the carrier plate is arranged in a ring array with a plurality of lamp beads, and a camera is mounted at the middle part of the carrier plate. The camera can collect images inside the digestive tract of the patient through the transparent front cover, and then transmit the images to a terminal outside wirelessly. A physician can check the condition of the digestive tract of the patient through the terminal, and remotely control the release mechanism to release the medicine after reaching the bleeding position.

[0017] As a further description of the above technical solution: the hemostatic capsule is further provided with a sampling mechanism, which can extract a tissue sample at a lesion position in the digestive tract of the patient. The sampling mechanism comprises:

[0018] a tissue extraction window opened on the hemostatic capsule;

[0019] a storage bin arranged inside the hemostatic capsule, the storage bin being located inside the tissue extraction window;

[0020] a cutter arranged inside the storage bin for cutting and extracting the tissue, the cutter being attached to an inner wall of the hemostatic capsule at the tissue extraction window;

[0021] and a cutter control assembly arranged inside the hemostatic capsule for controlling the movement of the cutter so as to close the tissue extraction window or cut and extract the tissue entering the tissue extraction window.

[0022] As a further description of the above technical solution: the cutter control assembly comprises:

[0023] a fixed plate fixed to the outer wall of the storage bin;

[0024] a rotating disc rotatably mounted on the fixed plate by a rotating shaft, and the axis of the rotating disc coincides with the center line of the hemostatic capsule;

[0025] a motor fixed to one side of the fixed sheet, an output shaft of the motor being connected with the rotating disc;

[0026] a connecting rod, one end of which is fixed to the edge of the rotating disc and the other end of which is connected with the middle part of the cutter, so that when the motor operates, the rotating disc rotates, the cutter moves along the inner wall of the hemostatic capsule through the linkage of the connecting rod, and the extraction of the digestive tract lesion or the closure of the tissue extraction window is realized.

[0027] As a further description of the above technical solution, the inner wall of the hemostatic capsule is provided with a front sleeve and a rear sleeve on both sides of the tissue extraction window, the front sleeve and the rear sleeve are both provided with a cavity, the cutter is slidingly assembled in the cavity of the rear sleeve, and the cutter can move along the inner wall of the hemostatic capsule under the control of the cutter control assembly, so that the front end of the cutter is inserted into the cavity in the front sleeve, and the tissue cutting and extraction and the closure of the tissue extraction window are realized.

[0028] As a further description of the above technical solution, the hemostatic capsule is internally provided with a power supply.

[0029] In the above technical solution, the hemostatic device for acute digestive tract hemorrhage provided by the application can be used in the absence of surgical conditions or in emergency situations. The patient with acute digestive tract hemorrhage swallows the hemostatic capsule, the hemostatic capsule reaches the bleeding position in the patient's body, the hemostatic drug solution is released to the bleeding position through the drug release mechanism, the acute digestive tract hemorrhage is temporarily inhibited quickly, time and conditions for surgical preparation are created, the structure of the drug release mechanism is designed, the hemostatic drug solution can be accurately sprayed to the digestive tract hemorrhage position of the patient with a certain kinetic energy when the hemostatic capsule releases the hemostatic drug solution, the effect of efficient and rapid inhibition of hemorrhage is realized, and the problem of patient tolerance does not occur in the hemostatic device in the form of the capsule. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0031] Figure 1 The overall structure diagram of the hemostatic device for acute digestive tract hemorrhage provided by the application;

[0032] Figure 2 The exploded structure diagram of the hemostatic device for acute digestive tract hemorrhage provided by the application;

[0033] Figure 3 An internal structure diagram of a hemostatic device for acute gastrointestinal bleeding provided by the present application is provided.

[0034] Figure 4 An internal structure diagram of a hemostatic device for acute gastrointestinal bleeding provided by the present application is provided.

[0035] Figure 5 An internal structure diagram of a hemostatic device for acute gastrointestinal bleeding provided by the present application is provided.

[0036] Figure 6 An internal structure diagram of a hemostatic device for acute gastrointestinal bleeding provided by the present application is provided.

[0037] Figure 7 An internal structure diagram of a hemostatic device for acute gastrointestinal bleeding provided by the present application is provided.

[0038] BRIEF DESCRIPTION OF DRAWINGS: 1, hemostatic capsule; 10, shell; 100, tissue extraction window; 101, outer nozzle; 102, magnet; 11, tail cover; 12, transparent front cover; 20, camera; 21, carrier plate; 22, lamp bead; 3, drug release mechanism; 30, drug cartridge; 300, drug release space; 301, separation rib; 302, drug release port; 31, air cylinder; 32, power supply; 33, shutter; 34, inner nozzle; 35, electric push rod; 36, drug pressing plate; 4, sampling mechanism; 40, storage bin; 41, fixed piece; 42, rotating disc; 43, connecting rod; 44, cutter; 45, front sleeve; 46, rear sleeve; 47, motor; 48, cavity; 49, guide groove. DETAILED DESCRIPTION

[0039] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application and uses. It should be understood that throughout the drawings, the same or similar reference numerals can be used for the same or similar items in the various figures. The drawings in the present specification and their accompanying detailed description are directed to merely exemplary embodiments of the present disclosure. Various embodiments of the present disclosure are schematically presented in the drawings, rather than shown in actual size or in actual proportion. Certain parts in certain drawings can be exaggerated to illustrate certain details of the present disclosure.

[0040] Example 1

[0041] As Figures 1-7 shown: the present embodiment provides a technical solution: a hemostatic device for acute gastrointestinal bleeding, comprising a hemostatic capsule 1, a drug release mechanism 3 is arranged inside the hemostatic capsule 1, and the drug release mechanism 3 can directly release hemostatic liquid to the gastrointestinal bleeding position;

[0042] The surface of the hemostatic capsule 1 is provided with an external spray hole 101 at the position of the drug release mechanism 3. The drug release mechanism 3 includes a cartridge 30 fixed inside the hemostatic capsule 1 for storing hemostatic liquid. There is a gap between the cartridge 30 and the outer wall of the hemostatic capsule 1 to form a drug release space 300. The bottom of the cartridge 30 is connected to the drug release space 300 through a drug release port 302. A movable baffle 33 is provided inside the drug release space 300. An internal spray hole 34 is opened on the surface of the baffle 33. A pushing component is provided inside the cartridge 30 to squeeze and push the hemostatic liquid into the drug release space 300.

[0043] The shield 33 can move to a first position and a second position under external constraints. The first position is the drug release position where the inner spray hole 34 on the shield 33 completely overlaps with the outer spray hole 101 on the surface of the hemostatic capsule 1. The second position is the closed position where the inner spray hole 34 on the shield 33 does not overlap with the outer spray hole 101 on the surface of the hemostatic capsule 1.

[0044] Working principle: When the hemostatic capsule 1 is used, the cartridge 30 first stores hemostatic liquid. At this time, the shield 33 is in the second position. Since the inner spray hole 34 on the shield 33 does not coincide with the outer spray hole 101 on the surface of the hemostatic capsule 1, the inside of the cartridge 30 is isolated from the outside of the hemostatic capsule 1, and the hemostatic liquid will not be released. When the hemostatic capsule 1 moves to the bleeding site in the patient's body, the shield 33 moves to the first position. At this time, the inner spray hole 34 on the shield 33 coincides with the outer spray hole 101 on the surface of the hemostatic capsule 1. The inside of the cartridge 30 is connected to the outside of the hemostatic capsule 1 through the drug release port 302, the drug release space 300, the inner spray hole 34 and the outer spray hole 101. Under the pushing action of the pushing component, the hemostatic liquid inside the cartridge 30 is squeezed out, that is, sprayed out from the outer spray hole 101 to the bleeding site in the patient's digestive tract, thereby achieving the hemostatic effect of inhibiting bleeding.

[0045] This device allows patients with acute gastrointestinal bleeding to swallow a hemostatic capsule 1 in situations where surgery is not possible or in emergency situations. When the hemostatic capsule 1 reaches the bleeding site in the patient's body, the drug release mechanism 3 releases hemostatic liquid to the bleeding site to quickly and temporarily inhibit gastrointestinal bleeding, creating time and conditions for surgical preparation.

[0046] Specifically, such as Figures 3-4 As shown, in order to enable the cover plate 33 to move to the first position or the second position, in this embodiment, an arc-shaped electric push rod 35 is provided in the drug release space 300. The piston rod of the electric push rod 35 is connected to one side of the cover plate 33. Under the push of the electric push rod 35, the cover plate 33 can move to the first position or the second position. It should be noted that the outer wall of the cover plate 33 is in contact with the inner wall of the hemostatic device 1, and there is a channel between the inner wall of the cover plate 33 and the inner wall of the drug release space 300 that allows the hemostatic drug solution to flow.

[0047] Specifically, in order to make the inner wall of the shutter 33 and the inner wall of the drug release space 300 have a channel for the hemostatic liquid to flow, four corner positions of the inner wall of the shutter 33 are provided with limiting blocks, the inner wall of the drug release space 300 at the position of the limiting blocks is provided with a limiting sliding groove matched with the limiting blocks, and the limiting blocks are slidingly assembled in the limiting sliding groove, so that when the shutter 33 moves, the limiting blocks slide in the limiting sliding groove, which not only ensures the stability of the movement of the shutter 33, but also forms a channel for the hemostatic liquid to flow between the inner wall of the shutter 33 and the inner wall of the drug release space 300 under the abutting action of the limiting blocks.

[0048] Specifically, as shown in Figures 3-4 in order to realize the extrusion and pushing of the hemostatic liquid in the cartridge 30 into the drug release space 300, so that the hemostatic liquid has a certain kinetic energy when released, and ensures that the hemostatic liquid can fully contact the bleeding position, in the embodiment, the pushing assembly includes a pressing plate 36 and a gas cylinder 31, wherein the gas cylinder 31 is installed above the cartridge 30, the pressing plate 36 is movably assembled in the inside of the cartridge 30, the piston rod of the gas cylinder 31 extends into the cartridge 30 and is connected with the pressing plate 36, so that when the gas cylinder 31 operates and pushes the pressing plate 36 to move downward, the liquid in the cartridge 30 is extruded and injected into the drug release space 300 through the drug release port 302, and then sprayed to the digestive tract bleeding position of the patient with a certain kinetic energy, realizing the effect of inhibiting bleeding.

[0049] Specifically, as shown in Figures 3-4 in order to make the hemostatic capsule 1 not need to rotate when releasing the drug, so as to release the drug at the corresponding angle position in the digestive tract and avoid waste of hemostatic liquid, in the embodiment, a plurality of partition ribs 301 are arranged in the drug release space 300 along the axial direction, the drug release space 300 is divided into a plurality of independent areas by the plurality of partition ribs 301, the bottom of each area is correspondingly provided with a drug release port 302 in communication with the inside of the cartridge 30, the hemostatic capsule 1 is provided with an outer nozzle 101 corresponding to each area, and each area is provided with an independent shutter 33 and an electric push rod 35 for controlling the movement of the shutter 33, based on this, when the hemostatic capsule 1 moves to the bleeding position, only the shutter 33 in the drug release space 300 corresponding to the angle of the bleeding position moves to release the drug accurately.

[0050] Specifically, as shown in Figures 1-3 in order to reduce the discomfort of the hemostatic device moving in the digestive tract of the patient, in the embodiment, the hemostatic capsule 1 includes an outer shell 10, a transparent front cover 12 arranged at the front end of the outer shell 10 in a hemispherical structure, and a tail cover 11 detachably mounted at the rear end of the outer shell 10 in a hemispherical structure, so as to reduce the discomfort of the hemostatic device moving in the digestive tract of the patient.

[0051] Specifically, as shown in Figures 1-3As shown, in order to realize the illumination and image acquisition inside the patient's digestive tract, in this embodiment, the front end of the hemostatic capsule 1 is internally provided with a carrier plate 21, the edge of the carrier plate 21 is annularly arranged with a plurality of lamp beads 22, and the middle part of the carrier plate 21 is provided with a camera 20. The camera 20 can collect the internal image of the patient's digestive tract through the transparent front cover 12, and then transmit it to the outside terminal wirelessly. The doctor can check the patient's digestive tract through the terminal, and after reaching the bleeding position, remotely control the drug release mechanism 3 to release the drug.

[0052] In addition, it should be noted that: in order to control the movement of the hemostatic capsule 1 in the patient's digestive tract, the wall of the hemostatic capsule 1 is embedded with a magnet 102, and the control principle is as follows: first, an external device such as a magnetic field generator generates an adjustable magnetic field. The doctor can control the strength and direction of the magnetic field to affect the motion trajectory of the capsule;

[0053] Specifically, when the external magnetic field acts on the magnet 102 on the hemostatic capsule 1, a magnetic force is generated, which makes the hemostatic capsule 1 move in the digestive tract. By adjusting the direction and strength of the magnetic field in real time, the forward and backward movement of the capsule can be accurately controlled.

[0054] Embodiment 2

[0055] As shown in the figure: Figures 1-7 The embodiment provides a technical solution: as shown in Figure 3 , Figures 5-7 On the basis of embodiment 1, in order to improve the functionality of the hemostatic device, so that it can extract the patient's digestive tract lesion sample in special circumstances, in this embodiment, the hemostatic capsule 1 is also provided with a sampling mechanism 4, which can extract tissue samples at the lesion site of the patient's digestive tract. The sampling mechanism 4 comprises:

[0056] A tissue extraction window 100 is opened on the hemostatic capsule 1;

[0057] A storage bin 40 is arranged inside the hemostatic capsule 1, and the storage bin 40 is located inside the tissue extraction window 100;

[0058] A cutter 44 is arranged inside the storage bin 40 for cutting and extracting tissues, and the cutter 44 is attached to the inner wall of the tissue extraction window 100 on the hemostatic capsule 1;

[0059] And a cutter control assembly is arranged inside the hemostatic capsule 1 for controlling the movement of the cutter 44, so that it can close the tissue extraction window 100 or cut and extract the tissues entering the tissue extraction window 100.

[0060] ​The process of extracting tissue sample from the lesion position of the patient's digestive tract is as follows: firstly, under normal circumstances, the cutter 44 completely seals the tissue extraction window 100 under the action of the cutter control assembly; when the hemostatic capsule 1 moves to the lesion position and the sample at the position needs to be extracted, the cutter 44 moves under the action of the cutter control assembly to open the tissue extraction window 100; at this time, the tissue extraction window 100 is controlled to be in contact with the lesion tissue by controlling the movement of the hemostatic capsule 1, part of the lesion tissue extends from the tissue extraction window 100 to the inside of the storage bin 40, and then the cutter 44 is controlled to move by the cutter control assembly to cut part of the lesion tissue and leave it in the storage bin 40, that is, the extraction of the lesion tissue of the digestive tract is realized.

[0061] Specifically, as shown in Figure 3 、 Figures 5-7 To control the cutter 44, the cutter control assembly in the embodiment includes:

[0062] The fixed sheet 41 is fixed to the outer wall of the storage bin 40;

[0063] The rotating disc 42 is rotatably installed on the fixed sheet 41 through a rotating shaft, and the axis of the rotating disc 42 coincides with the center line of the hemostatic capsule 1;

[0064] The motor 47 is fixed to one side of the fixed sheet 41, and the output shaft of the motor 47 is connected with the rotating disc 42;

[0065] The connecting rod 43 is fixed at one end to the edge of the rotating disc 42 and connected at the other end to the middle part of the cutter 44; based on this, when the motor 47 operates, the rotating disc 42 can be driven to rotate, and through the linkage of the connecting rod 43, the cutter 44 can be moved to closely contact the inner wall of the hemostatic capsule 1 to realize the extraction of the lesion tissue of the digestive tract or the sealing of the tissue extraction window 100.

[0066] Specifically, as shown in Figure 3 、 Figures 5-7 To enable the cutter 44 to move closely to the inner wall of the hemostatic capsule 1, the inner wall of the hemostatic capsule 1 is provided with a front sleeve 45 and a rear sleeve 46 on both sides of the tissue extraction window 100 in the embodiment, wherein the front sleeve 45 and the rear sleeve 46 are both provided with a cavity 48, the cutter 44 is slidingly assembled in the cavity 48 of the rear sleeve 46, and the cutter 44 can be moved to closely contact the inner wall of the hemostatic capsule 1 under the control of the cutter control assembly, so that the front end of the cutter 44 is inserted into the cavity 48 in the front sleeve 45 to realize tissue cutting and extraction and the sealing of the tissue extraction window 100. It should be noted that the inner side of the rear sleeve 46 is provided with a guide groove 49 for the movement of the connecting rod 43.

[0067] Specifically, as shown in Figure 3 、 Figures 5-7 Figure 3 Figures 5-7 Figure 3 Figures 5-7 Figure 3 Figures 5-7 Figure 3 Figures 5-7 Figure 3 Figures 5-7 Figure 3 Figures 5-7 Figure 3 Figures 5-7 FigureAs shown, in order to supply power to each electronic element inside the hemostatic capsule 1, in the embodiment, a power supply 32 is arranged inside the hemostatic capsule 1.

[0068] The above describes in detail the exemplary embodiments of the solutions proposed by the present disclosure with reference to the preferred embodiments, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiments, and various technical features and structures proposed by the present disclosure can be combined without departing from the concept of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A hemostatic device for acute gastrointestinal bleeding, characterized in that, It includes a hemostatic capsule (1), which has a drug release mechanism (3) inside, through which hemostatic liquid can be directly released to the bleeding site in the digestive tract; The surface of the hemostatic capsule (1) is provided with an external spray hole (101) located at the position of the drug release mechanism (3). The drug release mechanism (3) includes a cartridge (30) fixed inside the hemostatic capsule (1) for storing hemostatic liquid. There is a gap between the cartridge (30) and the outer wall of the hemostatic capsule (1) to form a drug release space (300). The bottom of the cartridge (30) is connected to the drug release space (300) through a drug release port (302). The drug release space (300) is provided with a movable baffle (33). The surface of the baffle (33) is provided with an internal spray hole (34). The cartridge (30) is provided with a pushing component that can squeeze and push the hemostatic liquid into the drug release space (300). The shield (33) can move to a first position and a second position under external constraints. The first position is the drug release position where the inner spray hole (34) on the shield (33) completely overlaps with the outer spray hole (101) on the surface of the hemostatic capsule (1). The second position is the closed position where the inner spray hole (34) on the shield (33) does not overlap with the outer spray hole (101) on the surface of the hemostatic capsule (1). The drug release space (300) is provided with an electric push rod (35) with an arc structure. The piston rod of the electric push rod (35) is connected to one side of the cover plate (33). Under the push of the electric push rod (35), the cover plate (33) can move to the first position or the second position. The hemostatic capsule (1) is also equipped with a sampling mechanism (4), which can extract tissue samples from the lesion site in the patient's digestive tract. The sampling mechanism (4) includes: A tissue extraction window (100) is opened on the hemostatic capsule (1); A storage compartment (40) is provided inside the hemostatic capsule (1), the storage compartment (40) being located inside the tissue extraction window (100); A cutting tool (44) for cutting and extracting tissue is disposed inside the storage compartment (40), and the cutting tool (44) is attached to the hemostatic capsule (1) at the inner wall of the tissue extraction window (100); A cutting tool control assembly, which is disposed inside the hemostatic capsule (1), is used to control the movement of the cutting tool (44) so ​​that it can close the tissue extraction window (100) or cut and extract the tissue that enters the tissue extraction window (100).

2. The hemostatic device for acute gastrointestinal bleeding according to claim 1, characterized in that, The pushing assembly includes a pressure plate (36) and a cylinder (31), wherein the cylinder (31) is installed above the cartridge (30), the pressure plate (36) is movably assembled inside the cartridge (30), and the piston rod of the cylinder (31) extends into the cartridge (30) and is connected to the pressure plate (36).

3. A hemostatic device for acute gastrointestinal bleeding according to claim 1 or 2, characterized in that, The drug release space (300) is provided with multiple dividing ridges (301) along the axial direction. The drug release space (300) is divided into multiple independent areas by the multiple dividing ridges (301). The bottom of each area is provided with a drug release port (302) that communicates with the inside of the drug cartridge (30). The hemostatic capsule (1) is provided with an external spray hole (101) corresponding to each area. Each area is provided with an independent baffle (33) and an electric push rod (35) for controlling the movement of the baffle (33).

4. A hemostatic device for acute gastrointestinal bleeding according to claim 1, characterized in that, The hemostatic capsule (1) includes an outer shell (10), a transparent front cover (12) with a hemispherical structure disposed at the front end of the outer shell (10), and a detachable tail cap (11) with a hemispherical structure installed at the rear end of the outer shell (10).

5. A hemostatic device for acute gastrointestinal bleeding according to claim 4, characterized in that, The front end of the hemostatic capsule (1) is provided with a carrier plate (21), and the edge of the carrier plate (21) is arranged with a number of LED beads (22) in a ring array. A camera (20) is installed in the middle of the carrier plate (21).

6. A hemostatic device for acute gastrointestinal bleeding according to claim 1, characterized in that, The tool control component includes: A fixing piece (41) is fixed to the outer wall of the storage compartment (40); A turntable (42) is rotatably mounted on the fixed plate (41) via a rotating shaft, and the axis of the turntable (42) coincides with the center line of the hemostatic capsule (1); A motor (47) is fixed to one side of the fixing plate (41), and the output shaft of the motor (47) is connected to the turntable (42); The connecting rod (43) has one end fixed to the edge of the turntable (42) and the other end connected to the middle of the cutter (44).

7. A hemostatic device for acute gastrointestinal bleeding according to claim 6, characterized in that, The inner wall of the hemostatic capsule (1) is provided with a front sleeve (45) and a rear sleeve (46) on both sides of the tissue extraction window (100). The front sleeve (45) and the rear sleeve (46) are each provided with a cavity (48). The cutter (44) is slidably assembled in the cavity (48) of the rear sleeve (46). Under the control of the cutter control component, the cutter (44) can move along the inner wall of the hemostatic capsule (1) so that the front end of the cutter (44) is inserted into the cavity (48) in the front sleeve (45).

8. A hemostatic device for acute gastrointestinal bleeding according to claim 1, characterized in that, The hemostatic capsule (1) is equipped with a power supply (32).

Images