Intragastric blood clot drawing device

Abstract

The utility model provides an intragastric blood clot drawing device, which solves the problems of low blood clot removal efficiency and the like, and comprises a drawing tube, a negative pressure driving mechanism is arranged at one end of the drawing tube, the other end of the drawing tube is connected with a negative pressure suction nozzle, a protection component is arranged at the port of the negative pressure suction nozzle, and a spiral guide component is arranged in the negative pressure suction nozzle. The blood clot removing device has the advantages of high blood clot removing efficiency, stable structure and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a gastric blood clot suction device. BACKGROUND

[0002] When the existing medical staff performs emergency endoscopy hemostasis on a digestive tract hemorrhage patient, a gastroscope needs to be introduced into a stomach cavity, at this time, a large amount of blood clots often cover the stomach wall, affecting the operation field of view. If the conventional flushing or negative pressure suction method is used to remove the blood clots, the blood clots are adhered in the stomach, the removal effect is poor, and the subsequent endoscopy operation is affected. In addition, if massive hemorrhage of the stomach leads to blood accumulation and too much blood clots, the conventional metal wire dredging pipe cannot quickly remove the blood clots, and the disease is seriously delayed.

[0003] In order to solve the problems in the prior art, people have carried out long-term exploration and proposed various solutions. For example, the Chinese patent document discloses a gastric blood clot suction device [201710590226.5], which comprises a catheter, the catheter has a first pipe wall and a second pipe wall which are sleeved with each other, a sealed interlayer cavity is formed between the first pipe wall and the second pipe wall, an exhaust port communicating with the interlayer cavity is arranged on the first pipe wall; a hollow section is arranged at the first port of the second pipe wall, and the hollow section is in communication with the interlayer cavity; a traction pipe is arranged in the second pipe wall, an expansion module is arranged at the first port of the traction pipe, and a gap is formed between the second pipe wall and the traction pipe.

[0004] The above-mentioned scheme solves the problem of blood clot removal to some extent, but the scheme still has many deficiencies, such as low blood clot removal efficiency and a large amount of blood accumulation. SUMMARY

[0005] The utility model aims at the above -mentioned problem, provides a kind of gastric blood clot suction device of reasonable in design, blood clot removal efficiency is high.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a gastric blood clot suction device, comprising a suction tube, a negative pressure driving mechanism is installed at one end of the suction tube, a negative pressure suction nozzle is connected to the other end of the suction tube, a protective assembly is arranged at the port of the negative pressure suction nozzle, and a spiral guide assembly is installed inside the negative pressure suction nozzle.

[0007] In the above-mentioned gastric blood clot suction device, the negative pressure suction nozzle includes a holding portion, the holding portion is threadedly connected with a suction head portion, the protective assembly is installed at the port of the suction head portion, and the spiral guide assembly is installed between the holding portion and the suction head portion.

[0008] In the aforementioned gastric blood clot aspiration device, the gripping part includes a grip handle, a bent part is provided in the middle of the grip handle, a silicone anti-slip sleeve is fitted on the outside of the grip handle, and a guide channel is provided inside the grip handle.

[0009] In the aforementioned gastric blood clot aspiration device, the suction head is conical with a flared end, and a guide cavity is left inside the suction head.

[0010] In the above-mentioned gastric blood clot aspiration device, the protective component includes a protective cover fixed at the end of the suction head. The protective cover has several stacked protective plates, which are disc-shaped and have progressively smaller diameters. There are gaps between adjacent protective plates and through holes that communicate with the outer flare.

[0011] In the above-mentioned gastric blood clot aspiration device, the spiral guide assembly includes a spiral rod rotatably installed in the suction head and rotatably connected to the gripping part. The spiral rod has spiral blades arranged in a centrally symmetrical manner distributed along the circumference. The spiral rod is driven by a drive motor installed in the gripping part.

[0012] In the aforementioned gastric blood clot aspiration device, the aspiration tube is connected to a drainage bottle, the drainage bottle is sealed with a separating fluid, and a one-way valve is installed at the inlet of the drainage bottle.

[0013] In the aforementioned gastric blood clot aspiration device, the drainage bottle is made of transparent material and has markings on its surface, and a shut-off valve is installed at the junction of the drainage bottle and the aspiration tube.

[0014] In the aforementioned gastric blood clot aspiration device, the negative pressure drive mechanism includes a negative pressure pump connected to the aspiration tube.

[0015] In the above-mentioned gastric blood clot aspiration device, the aspiration tube is equipped with an adjacent flushing tube, one end of which is connected to a liquid pump and the other end extends to a negative pressure suction nozzle.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the negative pressure suction head is equipped with a protective component to meet the requirements of high negative pressure torque aspiration; the built-in spiral guide component crushes blood clots to prevent blockage, thereby improving the continuous aspiration efficiency of accumulated blood and blood clots; the protective component is in direct contact with the stomach wall, and can scrape off blood clots adhering to the stomach wall during movement, thereby improving the removal effect; the drainage bottle temporarily seals the accumulated blood and blood clots for convenient subsequent centralized processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the negative pressure suction nozzle of Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the negative pressure suction nozzle of Embodiment 2 of this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the negative pressure suction nozzle of this utility model;

[0021] Figure 5 This is a structural block diagram of the present invention;

[0022] In the diagram, the components are: 1. Drainage tube; 11. Drainage bottle; 12. One-way valve; 13. Indicator scale; 14. Shut-off valve; 15. Negative pressure pump; 16. Flushing tube; 17. Liquid pump; 2. Negative pressure drive mechanism; 3. Negative pressure suction nozzle; 31. Grip part; 32. Suction head; 33. Grip handle; 34. Bending part; 35. Anti-slip sleeve; 36. Guide channel; 37. Outer flare; 38. Guide cavity; 4. Protective component; 41. Protective cover; 42. Protective plate; 5. Spiral guide component; 51. Spiral rod; 52. Spiral blade; 53. Drive motor. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figures 1-2 As shown, a gastric blood clot aspiration device includes an aspiration tube 1 extending into the stomach. A negative pressure drive mechanism 2 is installed at one end of the aspiration tube 1 to provide negative pressure torque. A negative pressure suction nozzle 3 is connected to the other end of the aspiration tube 1 for medical personnel to operate and hold. A protective component 4 is provided at the port of the negative pressure suction nozzle 3, which is in direct contact with the stomach wall. A spiral guide component 5 is installed inside the negative pressure suction nozzle 3. Under the action of negative pressure torque, the blood clot enters the negative pressure suction nozzle 3, is crushed by the spiral guide component 5, and then guided into the aspiration tube 1 for extraction.

[0026] Specifically, unlike conventional aspiration devices that directly use negative pressure tubing to extract accumulated blood, this application installs a negative pressure suction nozzle 3 at the port of the aspiration tube 1 for guiding purposes. The negative pressure suction nozzle 3 specifically includes a gripping part 31, which is threadedly connected to a suction head 32, allowing for quick assembly and disassembly via rotation. A protective component 4 is installed at the port of the suction head 32, and a spiral guide component 5 is installed between the gripping part 31 and the suction head 32. By separating the gripping part 31 from the suction head 32, the spiral guide component 5 can be cleaned.

[0027] Furthermore, to further increase the area of ​​the suction port, the suction head 32 is tapered and has a flared end 37, with the protective component 4 installed at the flared end 37. A guide cavity 38 is provided inside the suction head 32. The guide cavity 38 is for the insertion of the spiral guide component 5 and provides a channel for the transport of accumulated blood and blood clots.

[0028] Furthermore, the protective assembly 4 includes a protective cap 41 fixed to the end of the suction head 32. The protective cap 41 prevents the suction port of the suction tube 1 from directly facing the stomach wall. The protective cap 41 has several stacked protective plates 42, which are disc-shaped and gradually decrease in diameter. There are gaps between adjacent protective plates 42 and through holes communicating with the outer flare 37. Blood clots are introduced into the suction head 32 through the gaps between the protective plates 42. The multiple gaps are connected in parallel with the internal channels, allowing the negative pressure drive mechanism 2 to operate at higher power.

[0029] In addition, similar to existing spiral pulverizing structures, the spiral guide assembly 5 in this embodiment includes a spiral rod 51 rotatably mounted inside the suction head 32 and rotatably connected to the gripping part 31. Spiral blades 52 are centrally symmetrically arranged along the circumferential direction on the spiral rod 51. The spiral rod 51 is drive-connected to a drive motor 53 mounted inside the gripping part 31. The drive motor 53 drives the spiral rod 51 and spiral blades 52 to rotate, thereby applying a shearing torque to uniformly pulverize the blood clot and prevent blockage of the suction tube 1.

[0030] Example 2

[0031] like Figures 3-4 As shown, the structure, principle, and specific implementation steps of this embodiment are similar to those of Embodiment 1. The difference is that this aspiration device can also be used for clearing accumulated blood and blood clots during surgery. Therefore, the gripping part 31 includes a gripping handle 33, with a bent part 34 in the middle for easy operation. The gripping handle 33 is covered with a silicone anti-slip sleeve 35, and a guide channel 36 is provided inside the gripping handle 33. The orientation of the gripping part 31 and the suction head 32 is adjusted manually.

[0032] like Figure 1 As shown, the aspiration tube 1 is a flexible tube connected to a drainage bottle 11. The drainage bottle 11 contains an isolation fluid to seal the accumulated blood and blood clots; this fluid is typically an antibacterial solution. A one-way valve 12 is installed at the inlet of the drainage bottle 11 to prevent backflow of the fluid, thus providing good protection for the drainage bottle 11.

[0033] As can be seen, the drainage bottle 11 is made of transparent material and has markings 13 on its surface. A shut-off valve 14 is installed at the junction of the drainage bottle 11 and the extraction tube 1. The shut-off valve 14 is manually controlled to completely seal the inside of the drainage bottle 11, facilitating the replacement of the drainage bottle 11 or the extraction tube 1 and other components.

[0034] like Figure 5 As shown, the negative pressure drive mechanism 2 provides negative pressure torque, including a negative pressure pump 15 connected to the suction tube 1. The power of the negative pressure pump 15 is adjusted according to actual needs, and the suction force of the negative pressure pump 15 is increased to prevent the negative pressure nozzle 3 from being blocked.

[0035] Preferably, during the aspiration of blood clots in the stomach, flushing is usually required. Therefore, the aspiration tube 1 is equipped with an adjacent flushing tube 16, one end of which is connected to the liquid pump 17 and the other end extends to the negative pressure suction nozzle 3. The liquid pump 17 operates intermittently and alternately to improve the cleaning effect on the stomach wall, thereby obtaining a good endoscopic view.

[0036] In summary, the principle of this embodiment is as follows: the suction tube 1 is connected to the negative pressure drive mechanism 2 to provide negative pressure torque, the negative pressure suction nozzle 3 connected to the suction tube 1 is in direct contact with the stomach wall, the blood clot is guided by the protective component 4 to be evenly sucked into the negative pressure suction nozzle 3 and crushed by the spiral guide component 5, and then discharged by the suction tube 1.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0038] Although this document frequently uses terms such as 1. suction tube, 11. drainage bottle, 12. one-way valve, 13. indicating scale, 14. shut-off valve, 15. negative pressure pump, 16. flushing tube, 17. liquid pump, 2. negative pressure drive mechanism, 3. negative pressure suction nozzle, 31. grip, 32. suction head, 33. grip handle, 34. bending part, 35. anti-slip sleeve, 36. guide channel, 37. flared opening, 38. guide cavity, 4. protective component, 41. protective cover, 42. protective plate, 5. spiral guide component, 51. spiral rod, 52. spiral blade, and 53. drive motor, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A gastric blood clot aspiration device, comprising an aspiration tube (1), one end of which is equipped with a negative pressure driving mechanism (2), and the other end of which is connected to a negative pressure suction nozzle (3), characterized in that, A protective component (4) is provided at the port of the negative pressure suction nozzle (3), and a spiral guide component (5) is installed inside the negative pressure suction nozzle (3).

2. The gastric blood clot aspiration device according to claim 1, characterized in that, The negative pressure suction nozzle (3) includes a grip (31), the grip (31) is threadedly connected to a suction head (32), the protective component (4) is installed at the port of the suction head (32), and the spiral guide component (5) is installed between the grip (31) and the suction head (32).

3. The gastric blood clot aspiration device according to claim 2, characterized in that, The grip (31) includes a grip handle (33), the grip handle (33) has a bent part (34) in the middle, the grip handle (33) is covered with a silicone anti-slip sleeve (35) on the outside, and the grip handle (33) has a guide channel (36) inside.

4. The gastric blood clot aspiration device according to claim 2, characterized in that, The suction head (32) is conical and has a flared opening (37) at the end. The suction head (32) has a guide cavity (38) inside.

5. The gastric blood clot aspiration device according to claim 4, characterized in that, The protective component (4) includes a protective cover (41) fixed at the end of the suction head (32). The protective cover (41) has several stacked protective plates (42). The protective plates (42) are disc-shaped and their diameters decrease one by one. There are gaps between adjacent protective plates (42) and through holes that communicate with the outer flare (37).

6. The gastric blood clot aspiration device according to claim 4, characterized in that, The spiral guide assembly (5) includes a spiral rod (51) rotatably mounted in the suction head (32) and rotatably connected to the grip (31). The spiral rod (51) has spiral blades (52) arranged in a centrally symmetrical manner distributed along the circumference. The spiral rod (51) is connected to a drive motor (53) mounted in the grip (31).

7. The gastric blood clot aspiration device according to claim 1, characterized in that, The extraction tube (1) is connected to a drainage bottle (11), the drainage bottle (11) is sealed with isolation liquid, and a one-way valve (12) is installed at the inlet of the drainage bottle (11).

8. The gastric blood clot aspiration device according to claim 7, characterized in that, The drainage bottle (11) is made of transparent material and has markings (13) on its surface. A shut-off valve (14) is installed at the junction of the drainage bottle (11) and the extraction tube (1).

9. The gastric blood clot aspiration device according to claim 1, characterized in that, The negative pressure drive mechanism (2) includes a negative pressure pump (15) connected to the extraction tube (1).

10. The gastric blood clot aspiration device according to claim 1, characterized in that, The extraction tube (1) is equipped with adjacent flushing tubes (16), one end of which is connected to the liquid pump (17) and the other end extends to the negative pressure suction nozzle (3).

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