Blood clot removing device matched with gastroscope

Abstract

The utility model discloses a blood clot removing device matched with a gastroscope. The blood clot removing device comprises a nosebleed clot suction pipe and a three-way connecting pipe. The two ends of the nosebleed clot suction pipe are open; the three-way connecting pipe comprises a negative pressure connecting nozzle, a pressure regulating nozzle and a suction pipe connecting nozzle; wherein the negative pressure connecting mouth is suitable for being communicated with a negative pressure device, the suction tube connecting mouth is connected with the top end of the nosebleed clot suction tube, and the pressure regulating mouth is detachably plugged by a plugging element. Due to the fact that the nasal blood clot suction tube enters the human body through the nose, the diameter can be large, and blood clots with large sizes can be sucked out easily. In the process of sucking bleeding clots, only the plugging device needs to be taken down, the negative pressure state of the nosebleed clot suction tube is controlled by hands, the situation that the bleeding part cannot be seen clearly due to the fact that the stomach is sucked flat can be avoided, the situation that gastric mucosa is damaged due to the fact that the bottom end of the nosebleed clot suction tube is sucked to the gastric mucosa can be avoided, and the cost for achieving negative pressure control by hands is lower and safer.

Description

Technical Field

[0001] The utility model relates to the technical field of blood clot removal, in particular to a blood clot removal device matched with a gastroscope. Background Art

[0002] Acute upper gastrointestinal bleeding is one of the most common clinical emergencies and critical illnesses, and severe cases can lead to the death of patients. Emergency endoscopy is very important for clarifying the cause of gastrointestinal bleeding and endoscopic hemostasis. However, when there is massive gastrointestinal bleeding, huge blood clots often form in the stomach and adhere to the surface of the bleeding site, and it is not easy to find the specific bleeding site with emergency endoscopy. Therefore, emergency endoscopy needs to clean up the blood clots first when performing endoscopic hemostasis to fully expose the lesion site. However, blood clots are often large and viscous, making them difficult to clean.

[0003] In order to clean the blood clot, the prior art usually uses a snare to break the blood clot into smaller blood clots, and then uses the gastroscope suction channel to adsorb the smaller blood clots to the front end of the gastroscope lens, and then the gastroscope is pulled out to bring out the blood clot. In this way, it is necessary to frequently and repeatedly advance and withdraw the scope to completely remove the blood clot attached to the lesion surface, which greatly increases the operation time of the gastroscope and brings pain to the patient.

[0004] In order to avoid the pain of frequent and repeated insertion and withdrawal of the endoscope, a blood clot removal device has been developed. The top of the blood clot suction tube in the blood clot removal device is connected to a negative pressure device. After the bottom end is inserted into the human body along the gastroscope biopsy channel to reach the target position, the negative pressure device is activated to make the blood clot suction tube in a negative pressure state, so as to suck out the blood clot along the blood clot suction tube. However, the disadvantage of this blood clot removal device is that the diameter of the blood clot suction tube is relatively small due to the size of the gastroscope biopsy channel (usually 2.8 mm in diameter), and it is difficult to suck out a large blood clot. At the same time, it is costly to control the negative pressure state in the blood clot suction tube through a special instrument.

[0005] In view of the above-mentioned shortcomings, it is necessary to design a blood clot removal device that cooperates with a gastroscope to overcome the above-mentioned shortcomings. Utility Model Content

[0006] Therefore, the technical problem to be solved by the utility model is that the diameter of the blood clot suction tube in the existing blood clot removal device is limited by the size of the gastroscopic biopsy channel and is relatively small, making it difficult to suck out larger blood clots. At the same time, the cost of controlling the negative pressure in the blood clot suction tube through special instruments is high, thereby providing a blood clot removal device that cooperates with a gastroscope.

[0007] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0008] A blood clot removal device for use with a gastroscope comprises a nasal blood clot suction tube and a three-way connecting tube; both ends of the nasal blood clot suction tube are open; the three-way connecting tube comprises a negative pressure connecting nozzle, a pressure regulating nozzle, and a suction tube connecting nozzle; wherein the negative pressure connecting nozzle is suitable for being connected to a negative pressure device, the suction tube connecting nozzle is connected to the top end of the nasal blood clot suction tube, and the pressure regulating nozzle is detachably blocked by a blocking element.

[0009] Furthermore, the negative pressure connecting nozzle and the straw connecting nozzle are arranged coaxially, and the pressure regulating nozzle is arranged at an angle to the axis.

[0010] Furthermore, a mounting plate is provided at the outer end of the pressure regulating nozzle, and the top end and the bottom end of the mounting plate are respectively arranged outwardly relative to the axis.

[0011] Furthermore, the blocking element is connected to the bottom end of the mounting plate via a connecting belt.

[0012] Furthermore, it also includes a guide wire, which is arranged in the nasal blood clot suction tube.

[0013] Furthermore, it also includes a guide wire seat, the top end of the guide wire is connected to the guide wire seat, and the bottom end of the guide wire seat is detachably connected to the negative pressure connection nozzle.

[0014] Furthermore, the guide wire seat is T-shaped as a whole, including a transverse portion and a vertical portion, and the vertical portion is connected to the negative pressure connecting nozzle.

[0015] Furthermore, the vertical portion is in a frustum shape that is smaller at the top and larger at the bottom, so that the angle between the bottom surface of the horizontal portion and the side wall of the vertical portion is an acute angle.

[0016] Furthermore, a plurality of annular protrusions are provided on the outer wall of the negative pressure connection nozzle, and the plurality of annular protrusions are arranged at intervals along the length direction of the negative pressure connection nozzle, and the cross-section of the annular protrusions gradually decreases toward the guide wire seat.

[0017] Furthermore, a side suction hole is provided on the side wall of the bottom end of the nasal blood clot suction tube.

[0018] The technical solution of the utility model has the following advantages:

[0019] 1. The blood clot removal device provided by the utility model cooperates with a gastroscope. Since the nasal blood clot suction tube enters the human body through the nose, instead of passing through the gastroscopic biopsy channel to reach the location of the blood clot as in the prior art, the nasal blood clot suction tube is no longer limited by the size of the gastroscopic biopsy channel and can have a larger diameter. This is conducive to sucking out larger blood clots and can improve the efficiency of blood clot removal. In addition, the negative pressure connection nozzle of the three-way connecting pipe is connected to the negative pressure device, the suction tube connection nozzle is connected to the top of the blood clot suction tube, and the pressure regulating nozzle is detachably blocked by a blocking element. In this way, during the blood clot suction process, it is only necessary to remove the blocking device and seal and release the pressure regulating nozzle by hand to make the blood clot suction tube present a negative pressure state or release the negative pressure state, and the blood clot suction tube will not continue to generate negative pressure, thereby preventing the stomach from being deflated and unable to see the bleeding site in the stomach, and preventing the bottom end of the blood clot suction tube from being adsorbed on the gastric mucosa and causing gastric mucosal damage. In addition, the method of sealing and releasing the pressure regulating nozzle by hand to make the blood clot suction tube present a negative pressure state or release the negative pressure state is less costly than controlling it through a special instrument. Moreover, the hand can also have a more intuitive sense of the negative pressure in the blood clot suction tube, so it is also safer.

[0020] 2. The utility model provides a blood clot removal device for use with a gastroscope, and a mounting plate is provided at the outer end of the pressure regulating nozzle, and the top and bottom ends of the mounting plate are respectively arranged outwardly relative to the axis, so that the mounting plate can be U-shaped, which can guide the plug-in cooperation between the blocking element and the pressure regulating nozzle and improve the plug-in efficiency.

[0021] 3. The blood clot removal device provided by the utility model for use with a gastroscope has a guide wire seat that is T-shaped as a whole, including a transverse portion and a vertical portion, and the vertical portion is connected to the negative pressure connecting nozzle. In this way, the transverse portion can be used as a force-bearing portion for pulling the guide wire seat out of the negative pressure connecting nozzle, which is convenient for pulling out the guide wire seat.

[0022] 4. The blood clot removal device provided by the utility model for use with a gastroscope has a vertical portion in the shape of a cone that is small on the top and large on the bottom, so that the angle between the bottom surface of the horizontal portion and the side wall of the vertical portion is an acute angle. In this way, a larger force space can be provided for pulling out the guide wire seat, and the strength of the vertical portion can be ensured, thereby reducing the occurrence of cracks during the connection between the vertical portion and the negative pressure connecting nozzle.

[0023] 5. The utility model provides a blood clot removal device for use with a gastroscope, and a plurality of annular protrusions are provided on the outer wall of the negative pressure connecting nozzle. The plurality of annular protrusions are spaced apart along the length direction of the negative pressure connecting nozzle, and the cross-section of the annular protrusions gradually decreases toward the guide wire seat. In this way, the friction between the negative pressure connecting nozzle and the guide wire seat can be increased, making the connection between the negative pressure connecting nozzle and the guide wire seat more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a front view of the blood clot removal device matched with the gastroscope in the embodiment of the utility model;

[0026] Figure 2 A perspective view of a blood clot removal device used in conjunction with a gastroscope in an embodiment of the utility model;

[0027] Figure 3 It is a three-dimensional combined schematic diagram of a blood clot removal device in cooperation with a gastroscope in an embodiment of the utility model;

[0028] Figure 4 It is a three-dimensional exploded schematic diagram of a blood clot removal device used in conjunction with a gastroscope in an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 100. Transnasal blood clot suction tube; A. Three-way connecting tube; B. Connecting belt; C. Mounting plate; 300. Guide wire; 400. Guide wire holder; 101. Bottom suction hole; 102. Side suction hole; 200. Suction tube connecting nozzle; 201. Pressure regulating nozzle; 202. Negative pressure connecting nozzle; 203. Blocking element. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figures 1 to 4 As shown, the utility model provides a blood clot removal device for use with a gastroscope, including a nasal blood clot suction tube 100 and a three-way connecting tube A. Both ends of the nasal blood clot suction tube 100 are open. The three-way connecting tube A includes a suction tube connection nozzle 200, a pressure regulating nozzle 201, and a negative pressure connection nozzle 202 that are interconnected. Among them, the negative pressure connection nozzle 202 is connected to a negative pressure device (not shown), the suction tube connection nozzle 200 is connected to the top end of the nasal blood clot suction tube 100, and the pressure regulating nozzle 201 is detachably blocked by a blocking element 203.

[0036] Since the blood clot suction straw in the utility model is a nasal blood clot suction straw 100 that enters the human body through the nose, instead of the blood clot suction straw passing through the endoscopic biopsy channel (usually with a diameter of 2.8 mm) to reach the location of the blood clot as in the prior art, the nasal blood clot suction straw 100 is no longer limited by the size of the endoscopic biopsy channel and can have a larger diameter, which is conducive to sucking out larger blood clots. In addition, the negative pressure connecting nozzle 202 of the three-way connecting tube A is connected to the negative pressure device, the suction tube connecting nozzle 200 is connected to the top end of the nasal blood clot suction tube 100, and the pressure regulating nozzle 201 is detachably blocked by a blocking element 203. In this way, during the process of sucking out blood clots, it is only necessary to remove the blocking device and seal or release the pressure regulating nozzle 201 by hand to make the nasal blood clot suction tube 100 present a negative pressure state or release the negative pressure state, and the negative pressure will not be continuously generated in the nasal blood clot suction tube 100, thereby preventing the stomach from being sucked flat and the bleeding site in the stomach from being clearly seen, and also preventing the bottom end of the nasal blood clot suction tube 100 from being adsorbed onto the gastric mucosa and causing gastric mucosal damage. In addition, the method of sealing or releasing the pressure regulating nozzle 201 by hand to make the nasal blood clot suction tube 100 present a negative pressure state or release the negative pressure state is less costly than controlling it through a special instrument. Moreover, the hand can also have a more intuitive sense of the negative pressure in the nasal blood clot suction tube 100, so it is also safer.

[0037] It needs to be emphasized again that the nasal blood clot suction tube 100 does not enter the human body along the gastroscopic biopsy channel, but only uses the gastroscope to confirm whether the nasal blood clot suction tube 100 reaches the target position.

[0038] In this embodiment, the diameter of the nasal blood clot suction tube 100 is 4.5 mm to 4.7 mm, preferably 4.67 mm.

[0039] In this embodiment, the negative pressure connection nozzle 202 and the straw connection nozzle 200 are arranged coaxially, and the pressure regulating nozzle 201 is arranged at an angle to the axis. In other embodiments, the negative pressure connection nozzle 202, the straw connection nozzle 200 and the pressure regulating nozzle 201 can also be arranged at an angle of 120 degrees to each other.

[0040] In this embodiment, a mounting piece C is provided at the outer end of the pressure regulating nozzle 201. The top and bottom ends of the mounting piece C are respectively arranged outward relative to the axis, so that the mounting piece C is U-shaped. The mounting piece C can guide the plugging and matching of the blocking element 203 and the pressure regulating nozzle 201 to improve the plugging efficiency. The pressure regulating nozzle 201 and the mounting piece C together form a T-shaped structure. In other embodiments, the mounting piece C can be a conical cap-shaped structure.

[0041] In this embodiment, the blocking element 203 is connected to the bottom end of the mounting plate C through a soft connecting belt B to ensure that the blocking element 203 will not be separated from the three-way connecting pipe A and lost. Specifically, the blocking element 203 is a plug. In other embodiments, the blocking element 203 can also be a blocking piece such as a sticker, which is not specifically limited here and can be set according to actual needs.

[0042] As a preferred embodiment, the blood clot removal device used in conjunction with the gastroscope also includes a guide wire 300, which is arranged in the nasal blood clot suction straw 100 to increase the strength of the nasal blood clot suction straw 100, thereby facilitating the insertion of the nasal blood clot suction straw 100 into the human body and reaching the target position.

[0043] As a more preferred solution, a guide wire holder 400 is further included, the top end of the guide wire 300 is connected to the guide wire holder 400, and the bottom end of the guide wire holder 400 is detachably connected to the negative pressure connection nozzle 202. It is normal that the guide wire holder 400 is connected to the negative pressure connection nozzle 202, and it is also normal that the nasal blood clot suction tube 100 is connected to the suction tube connection nozzle 200 of the three-way connection tube A, so as to store the guide wire 300 in the nasal blood clot suction tube 100. Only after the nasal blood clot suction tube 100 is sent into the human body and reaches the target position, the guide wire holder 400 is removed to pull the guide wire 300 out of the nasal blood clot suction tube 100, and the negative pressure device is connected to the negative pressure connection nozzle 202.

[0044] In this embodiment, the guide wire seat 400 is T-shaped as a whole, including a transverse portion and a vertical portion, and the vertical portion is connected to the negative pressure connecting nozzle 202. In this way, the transverse portion can be used as a force-bearing portion to pull the guide wire seat 400 out of the negative pressure connecting nozzle 202, which is conducive to the pulling out of the guide wire seat 400.

[0045] In this embodiment, the vertical portion is in the shape of a cone that is small at the top and large at the bottom, so that the angle between the bottom surface of the horizontal portion and the side wall of the vertical portion is an acute angle. In this way, a larger force space can be provided for the removal of the guide wire seat 400, and the strength of the vertical portion can be ensured, thereby reducing the occurrence of cracks during the connection between the vertical portion and the negative pressure connecting nozzle 202.

[0046] In this embodiment, a plurality of annular protrusions (not marked) are provided on the outer wall of the negative pressure connection nozzle 202, and the plurality of annular protrusions are arranged at intervals along the length direction of the negative pressure connection nozzle 202, and the cross section of the annular protrusions gradually decreases toward the guide wire seat 400. The arrangement of the plurality of annular protrusions can increase the friction between the negative pressure connection nozzle 202 and the guide wire seat 400, so that the connection between the negative pressure connection nozzle 202 and the guide wire seat 400 is more stable, and, compared with the threaded connection between the negative pressure connection nozzle 202 and the guide wire seat 400, in this embodiment, the negative pressure connection nozzle 202 and the guide wire seat 400 can be connected together by simply plugging in one direction without rotating the negative pressure connection nozzle 202 or the guide wire seat 400, so the connection is more convenient.

[0047] In this embodiment, the bottom end of the nasal blood clot suction tube 100 is open to form a bottom suction hole 101, and a side suction hole 102 is also provided on the side wall of the bottom end of the nasal blood clot suction tube 100. The side suction hole 102 cooperates with the bottom suction hole 101 to suck out the blood clot along the nasal blood clot suction tube 100.

[0048] The following describes the use of the blood clot removal device of the utility model in combination with a gastroscope:

[0049] Under the support and guidance of the guide wire 300 and the confirmation of the gastroscope lens, the nasal blood clot suction tube 100 is inserted into the human body and reaches the target position;

[0050] Pull the guide wire holder 400 off the negative pressure connection nozzle 202 to draw the guide wire 300 out of the nasal blood clot suction tube 100;

[0051] Connect the negative pressure device to the negative pressure connection nozzle 202 of the three-way connecting pipe A, and remove the blocking element 203;

[0052] Start the negative pressure device and block the pressure regulating nozzle 201 by hand to make the nasal blood clot suction tube 100 in a negative pressure state;

[0053] The blood clot is sucked into the nasal blood clot suction tube 100 from the bottom suction hole 101 and / or the side suction hole 102. Since the tube diameter of the nasal blood clot suction tube 100 is relatively large, basically all the blood clots can be sucked out at one time, thereby improving the blood clot removal efficiency;

[0054] During the inhalation process, the negative pressure in the nasal blood clot suction straw 100 is sensed by hand, and the pressure regulating nozzle 201 is released at an appropriate time to release the negative pressure state of the nasal blood clot suction straw 100, thereby preventing the stomach from being deflated and the bleeding site in the stomach from being clearly seen, and also preventing the bottom end of the nasal blood clot suction straw 100 from being adsorbed onto the gastric mucosa and causing gastric mucosal damage.

[0055] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A blood clot removal device used in conjunction with a gastroscope, characterized in that: It comprises a nasal blood clot suction tube (100) and a three-way connecting tube (A); both ends of the nasal blood clot suction tube (100) are open; the three-way connecting tube (A) comprises a suction tube connecting nozzle (200), a pressure regulating nozzle (201), and a negative pressure connecting nozzle (202) which are interconnected; wherein the negative pressure connecting nozzle (202) is suitable for being connected to a negative pressure device, the suction tube connecting nozzle (200) is connected to the top end of the nasal blood clot suction tube (100), and the pressure regulating nozzle (201) is detachably blocked by a blocking element (203).

2. The blood clot removal device used in conjunction with a gastroscope according to claim 1, characterized in that: The negative pressure connection nozzle (202) and the straw connection nozzle (200) are arranged coaxially, and the pressure regulating nozzle (201) is arranged at an angle to the axis.

3. The blood clot removal device used in conjunction with a gastroscope according to claim 2, characterized in that: The outer end of the pressure regulating nozzle (201) is provided with a mounting plate (C), and the top end and the bottom end of the mounting plate (C) are respectively arranged outwardly relative to the axis.

4. The blood clot removal device used in conjunction with a gastroscope according to claim 3, characterized in that: The blocking element (203) is connected to the bottom end of the mounting plate (C) via a connecting belt (B).

5. The blood clot removal device used in conjunction with a gastroscope according to any one of claims 1 to 4, characterized in that: It also includes a guide wire (300), and the guide wire (300) is arranged in the nasal blood clot suction tube (100).

6. The blood clot removal device used in conjunction with a gastroscope according to claim 5, characterized in that: It also includes a guide wire seat (400), the top end of the guide wire (300) is connected to the guide wire seat (400), and the bottom end of the guide wire seat (400) is detachably connected to the negative pressure connection nozzle (202).

7. The blood clot removal device used in conjunction with a gastroscope according to claim 6, characterized in that: The guide wire seat (400) is T-shaped as a whole, including a transverse portion and a vertical portion, and the vertical portion is connected to the negative pressure connection nozzle (202).

8. The blood clot removal device used in conjunction with a gastroscope according to claim 7, characterized in that: The vertical portion is in a frustum shape that is smaller at the top and larger at the bottom, so that the angle between the bottom surface of the horizontal portion and the side wall of the vertical portion is an acute angle.

9. The blood clot removal device used in conjunction with a gastroscope according to claim 6, characterized in that: A plurality of annular protrusions are provided on the outer wall of the negative pressure connection nozzle (202), and the plurality of annular protrusions are arranged at intervals along the length direction of the negative pressure connection nozzle (202), and the cross-section of the annular protrusions gradually decreases toward the guide wire seat (400).

10. The blood clot removal device used in conjunction with a gastroscope according to any one of claims 1 to 4 or 6 to 9, characterized in that: A side suction hole (102) is provided on the side wall of the bottom end of the nasal blood clot suction tube (100).

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