Adjustable tubular hematoma evacuation device

Abstract

This utility model discloses an adjustable tubular hematoma removal device, relating to the field of medical device technology. It includes a main tube, with a suction component extending through one end and an adjustment component at the other end. An adjustment knob is located on one side of the adjustment component, and a suction tube is located at one end of the adjustment component. A handle is located on the outer side of one end of the suction tube, and a branch tube is located at the top of the middle section of the suction tube, with a sealing cap at the top of the branch tube. An injection connector is located at the other end of the suction tube. This utility model has a scientifically novel structure, enabling safe hematoma removal through the organic cooperation of the main tube, suction component, and adjustment component. The guide section and annular sealing edge on the main tube form a reliable seal with the suction needle, while the design of the branch tube and sealing cap facilitates drug injection, improving the safety and reliability of hematoma removal.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adjustable tubular hematoma removal device. Background Technology

[0002] Intracranial hematoma is a common neurosurgical emergency, and the choice of surgical treatment directly affects the patient's prognosis. Traditional craniotomy is highly invasive and has many complications, while minimally invasive surgery, due to its advantages such as less trauma and faster recovery, has gradually become an important method for treating intracranial hematoma. With the continuous advancement of medical technology, surgical instruments for minimally invasive removal of intracranial hematomas are also constantly being improved and innovated. Currently, the commonly used hematoma removal devices in clinical practice mainly include two types: aspiration type and mechanical fragmentation type. After puncture and positioning, a thin tube is inserted into the hematoma cavity to perform the removal operation, which can achieve targeted removal of the hematoma.

[0003] For example, Chinese patent CN222265403U discloses a continuously adjustable tubular cerebral hematoma removal device, which includes a first tubular retractor, a second tubular retractor inserted inside the first tubular retractor, a slot at one end of the first tubular retractor, a locking block at one end of the second tubular retractor, the locking block being locked in the slot, and a drainage tube inserted inside the second tubular retractor. The size of the drainage tube can be adjusted by replacing the tubular retractor, thus reducing the operation time and risk.

[0004] However, the aforementioned brain hematoma removal device has the following shortcomings in practical application: First, the adjustment component of the device has a relatively simple structure, adjusting the drainage tube size only by changing the tube retractor. This adjustment method is not precise enough and cannot adjust the suction intensity in real time according to the nature of the hematoma (such as fresh or old hematoma). Especially for old hematomas, due to their denser tissue, it is difficult to achieve effective removal by simply adjusting the drainage tube size, and it is easy to damage the surrounding normal brain tissue due to excessive suction intensity. Most devices have low removal efficiency and often require repeated operations to completely remove the hematoma. Second, the device lacks a drug injection channel, making it impossible to inject dissolving drugs during the hematoma removal process. This structural defect leads to poor results in the treatment of old hematomas, because old hematomas often require the injection of drugs to promote dissolution before suction removal. The aforementioned device cannot achieve this treatment process, limiting its clinical application effect and increasing the risk of damage to surrounding brain tissue, thus its practicality is poor.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes an adjustable tubular hematoma removal device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] An adjustable tubular hematoma removal device includes a main tube, a suction component is installed through one end of the main tube, an adjustment component is installed at the other end of the main tube, an adjustment knob is installed on one side of the adjustment component, and an extraction tube is installed at one end of the adjustment component; a handle is installed on the outer side of one end of the extraction tube, a branch tube is installed at the top of the middle part of the extraction tube, a sealing cap is installed at the top of the branch tube, and an injection connector is installed at the other end of the extraction tube.

[0009] Furthermore, in order to ensure that the inner tube can be stably installed in the main pipe while maintaining good sealing performance during the assembly process through the gradual design of the inner tube diameter and the cooperation of the sealing ring, the suction assembly includes an inner tube set inside the main pipe. One end of the inner tube is provided with a connecting sleeve, and one end of the connecting sleeve is provided with a suction needle. Several circumferentially distributed limiting grooves are opened on the outer side of the inner tube, and a sealing ring is provided on the outer side of the other end of the inner tube. The diameter of the inner tube gradually increases in the direction away from the suction needle.

[0010] Furthermore, in order to achieve a seal between the suction needle and the main pipe and facilitate the positioning and insertion of the suction needle, a number of limiting blocks that cooperate with the limiting slots are provided on the inner side of one end of the main pipe, and a guide section is provided on the inner side of the other end of the main pipe. The cross-section of the guide section is a conical structure, and an annular sealing edge is provided at one end of the guide section. The inner diameter of the annular sealing edge is equal to the outer diameter of the suction needle.

[0011] Furthermore, in order to adjust the position of the guide plate and the arc-shaped baffle by rotating the adjusting shaft, thereby adjusting the suction intensity of hematoma removal and ensuring the smooth flow of blood and tissue fragments, the adjusting component includes a connecting cylinder at one end of the main pipe, with connecting pipes extending through both ends of the connecting cylinder. Mounting plates are symmetrically arranged on both sides of the connecting cylinder, and an adjusting shaft extends through the middle of the mounting plate. An adjusting rotor is sleeved on the outer side of the adjusting shaft. The adjusting rotor includes a rotating wheel body located outside the adjusting shaft. Several circumferentially distributed guide plates are arranged on the outer side of the rotating wheel body, and an arc-shaped baffle is arranged between each set of guide plates.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model has a scientific and novel structure. It can safely remove hematomas through the organic cooperation of the main pipe, the suction component and the adjustment component. The guide section and the annular sealing edge on the main pipe form a reliable seal with the suction needle. The arc-shaped elastic locking block of the handle provides stable support. The design of the branch pipe and the sealing cap facilitates the injection of medicine. The overall structure is not only easy to operate, but also has excellent sealing performance, which greatly improves the safety and reliability of hematoma removal.

[0014] 2. By setting up the suction assembly, the accurate positioning and reliable fixation of the suction needle are achieved. The limiting groove on the inner tube cooperates with the limiting block in the main tube to ensure the precise installation of the assembly. The gradual diameter design of the inner tube and the cooperation of the sealing ring ensure the sealing performance of the system. This structural design is not only simple to assemble, but also effectively prevents blood backflow, providing a basic guarantee for the safe removal of hematoma.

[0015] 3. By setting up adjustment components, the intensity of hematoma aspiration can be adjusted. The guide plate and arc baffle on the adjustment rotor can form flow channels of different sizes by rotation. Medical personnel can adjust the aspiration intensity in real time according to the specific situation of the hematoma. The design that the length of the guide plate is less than the inner radius of the connecting tube ensures the continuity and reliability of the adjustment process. This adjustable design not only ensures the effect of hematoma removal, but also avoids damage to the surrounding normal brain tissue. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable tubular hematoma removal device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the adjustable tubular hematoma removal device according to an embodiment of the present utility model from another angle.

[0019] Figure 3 This is a schematic diagram of the aspiration component in an adjustable tubular hematoma removal device according to an embodiment of the present invention;

[0020] Figure 4 This is a partial structural schematic diagram of the main pipeline in an adjustable tubular hematoma removal device according to an embodiment of the present utility model;

[0021] Figure 5 This is a partial structural schematic diagram of the adjusting component in an adjustable tubular hematoma removal device according to an embodiment of the present utility model;

[0022] Figure 6 This is a partial structural schematic diagram of the adjusting rotor in an adjustable tubular hematoma removal device according to an embodiment of the present utility model;

[0023] Figure 7This is a partial structural diagram of the suction pipe in an adjustable tubular hematoma removal device according to an embodiment of the present invention.

[0024] In the picture:

[0025] 1. Main pipe; 101. Limiting block; 102. Guide section; 103. Annular sealing edge; 2. Suction assembly; 201. Inner pipe; 202. Connecting sleeve; 203. Suction needle; 204. Limiting groove; 205. Sealing ring; 3. Adjustment assembly; 301. Connecting cylinder; 302. Connecting pipe; 303. Mounting plate; 304. Adjusting shaft; 305. Adjusting rotor; 3051. Rotary wheel body; 3052. Guide plate; 3053. Arc-shaped baffle; 4. Adjustment knob; 5. Suction pipe; 6. Handle; 7. Branch pipe; 8. Sealing cap; 9. Injection connector. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, an adjustable tubular hematoma removal device is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, the adjustable tubular hematoma removal device according to an embodiment of the present invention includes a main pipe 1, a suction component 2 is provided through one end of the main pipe 1, an adjustment component 3 is provided at the other end of the main pipe 1, an adjustment knob 4 is provided on one side of the adjustment component 3, and a suction pipe 5 is provided at one end of the adjustment component 3; a handle 6 is provided on the outer side of one end of the suction pipe 5 (in addition, in specific applications, arc-shaped elastic locking blocks that cooperate with the suction pipe 5 are symmetrically provided on both sides of the top of the handle 6), a branch pipe 7 is provided at the top of the middle part of the suction pipe 5, a sealing cap 8 is provided at the top of the branch pipe 7, and an injection connector 9 is provided at the other end of the suction pipe 5.

[0029] It should be noted that the sealing cap 8 is made of medical-grade silicone and has a cylindrical structure. The sealing cap 8 and the branch tube 7 are fitted with an interference fit. The inner wall of the injection connector 9 is provided with a standard Luer interface for connecting with an external syringe. This is existing technology and will not be described in detail here.

[0030] With the help of the above-mentioned technical solution of this utility model, the structure of this utility model is scientific and novel. It can achieve safe removal of hematoma through the organic cooperation of the main pipe 1, the suction component 2 and the adjustment component 3. The guide section 102 and the annular sealing edge 103 on the main pipe 1 form a reliable seal with the suction needle 203. The arc-shaped elastic locking block of the handle 6 provides stable support. The design of the branch pipe 7 and the sealing cap 8 facilitates the injection of medicine. The overall structure is not only easy to operate, but also has excellent sealing performance, which greatly improves the safety and reliability of hematoma removal.

[0031] In one embodiment, a plurality of limiting blocks 101 that cooperate with the limiting slots 204 are provided on the inner side of one end of the main pipe 1, and a guide section 102 is provided on the inner side of the other end of the main pipe 1. The guide section has a tapered cross-section, and an annular sealing edge 103 is provided at one end of the guide section 102. The inner diameter of the annular sealing edge 103 is equal to the outer diameter of the aspiration needle 203, thereby ensuring that the aspiration needle 203 can be accurately positioned during insertion. The tight fit between the annular sealing edge 103 and the aspiration needle 203 forms a reliable sealing structure to prevent blood backflow and leakage. At the same time, the tapered structure design of the guide section 102 can guide the aspiration needle 203 to be inserted in the correct direction, avoiding installation deviation.

[0032] In one embodiment, the suction assembly 2 includes an inner tube 201 disposed inside the main pipe 1. One end of the inner tube 201 is provided with a connecting sleeve 202, and one end of the connecting sleeve 202 is provided with a suction needle 203. A plurality of circumferentially distributed limiting grooves 204 are provided on the outer side of the inner tube 201, and a sealing ring 205 is provided on the outer side of the other end of the inner tube 201. The diameter of the inner tube 201 gradually increases in the direction away from the suction needle 203. Thus, during the assembly process, the gradual design of the diameter of the inner tube 201 and the cooperation of the sealing ring 205 ensure that the inner tube 201 can be stably installed in the main pipe 1 while maintaining good sealing performance.

[0033] The working principle of the suction assembly 2 is as follows: First, the suction assembly 2 is inserted from the rear end of the main pipe 1. The limiting groove 204 on the inner tube 201 cooperates with the limiting block 101 on the inner wall of the main pipe 1. The suction assembly 2 is accurately positioned and fixed in the main pipe 1 through the snap-fit ​​cooperation. The gradient diameter design of the inner tube 201 allows it to be naturally guided during the insertion process, and the sealing ring 205 ensures the sealing effect after installation. When the suction assembly 2 is fully inserted, the suction needle 203 will pass through the guide section 102 and form a tight fit with the annular sealing edge 103. This assembly method is not only simple to operate, but also ensures the sealing and stability of the removal device, effectively prevents blood backflow, and ensures the safety and reliability of the hematoma removal process.

[0034] In one embodiment, the adjustment component 3 includes a connecting cylinder 301 disposed at one end of the main pipe 1. Connecting pipes 302 are provided through both sides of the connecting cylinder 301. Mounting plates 303 are symmetrically disposed at both ends of the connecting cylinder 301. An adjustment shaft 304 is provided through the middle of the mounting plate 303 (in addition, in specific applications, the adjustment shaft 304 is connected to the mounting plate 303 by a bearing, and the adjustment knob 4 is fixedly connected to one end of the adjustment shaft 304). An adjustment rotor 305 is sleeved on the outside of the adjustment shaft 304. The adjustment rotor 305 includes a rotating wheel body 3051 disposed on the outside of the adjustment shaft 304. A plurality of circumferentially distributed guide plates 3052 are disposed on the outside of the rotating wheel body 3051, and an arc-shaped baffle 3053 is disposed between each set of guide plates 3052. Thus, by rotating the adjustment shaft 304, the position of the guide plates 3052 and the arc-shaped baffle 3053 can be changed, thereby adjusting the suction intensity of hematoma removal and ensuring the smooth flow of blood and tissue fragments.

[0035] It should be noted that in specific applications, the length of the guide plate 3052 is less than the radius of the inner cavity of the connecting cylinder 301. During the adjustment of the rotor 305 rotation, the guide plate 3052 always maintains an appropriate gap with the opening on the inner side of the connecting cylinder 301 leading to the connecting pipe 302 to avoid blockage.

[0036] The working principle of the adjustment component 3 is as follows: when it is necessary to adjust the suction intensity of hematoma removal, medical personnel can rotate the adjustment knob 4 to drive the adjustment shaft 304 to rotate. The rotation of the adjustment shaft 304 drives the adjustment rotor 305 fixedly connected to it to rotate. The guide plate 3052 and the arc-shaped baffle 3053 on the adjustment rotor 305 change their positions accordingly, thereby changing the flow channel structure inside the connecting cylinder 301.

[0037] When the rotor 305 rotates, the guide plate 3052 and the opening on the inner side of the connecting cylinder 301 leading to the connecting pipe 302 form channels of different sizes. These channels directly affect the flow rate of blood and tissue fragments. The arc-shaped baffle 3053 forms multiple chambers between the guide plates 3052. When a larger suction intensity is required, the guide plate 3052 can be rotated to form a larger opening, allowing more blood and tissue fragments to pass through. When a smaller suction intensity is required, the guide plate 3052 can be rotated to form a smaller opening, limiting the flow rate. This design allows medical personnel to adjust the suction intensity in real time according to the specific situation of the hematoma (such as the size, location, freshness of the hematoma, etc.) and the individual differences of the patient, ensuring effective removal of the hematoma while avoiding unnecessary damage to the surrounding normal brain tissue.

[0038] In addition, the connecting pipes 302 at both ends of the connecting tube 301 ensure the smooth flow of blood and tissue fragments, while the symmetrically arranged mounting plates 303 provide stable structural support, ensuring that the entire adjustment mechanism remains stable and reliable during use.

[0039] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0040] In practical application, medical personnel first insert the aspiration assembly 2 from the rear end of the main pipe 1. The limiting groove 204 on the inner tube 201 cooperates with the limiting block 101 on the inner wall of the main pipe 1 to achieve accurate positioning and fixation of the aspiration assembly 2 within the main pipe 1. The aspiration needle 203, through the guide section 102, forms a tight fit with the annular sealing edge 103 to ensure a tight seal. Then, the adjusting assembly 3 is installed at the other end of the main pipe 1, and the connecting tube 301 is connected to the main pipe 1 and the aspiration pipe 5 through the connecting pipe 302. Medical personnel can adjust the aspiration intensity by rotating the adjusting knob 4. For fresh hematomas, aspiration can be performed directly; for old hematomas, the sealing cap 8 can be removed first, and dissolving drugs can be injected through the branch tube 7, after which the sealing cap 8 can be replaced. After injection, medical personnel can adjust the position of the guide plate 3052 by adjusting the knob 4 according to the hematoma condition to control the aspiration intensity. Finally, connect the syringe to the injection connector 9 and begin aspirating the hematoma; throughout the process, the handle 6 provides stable support and facilitates operation. This design not only allows for flexible adjustment of the removal strategy according to the nature of the hematoma, but also effectively avoids unnecessary damage to surrounding normal brain tissue, greatly improving the safety and effectiveness of hematoma removal.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable tubular hematoma evacuation device comprising a main body conduit (1), characterized in that, A suction component (2) is provided through one end of the main pipe (1), and an adjustment component (3) is provided at the other end of the main pipe (1). An adjustment knob (4) is provided on one side of the adjustment component (3), and a suction pipe (5) is provided at one end of the adjustment component (3).

2. An adjustable tubular hematoma evacuation device according to claim 1, wherein, A handle (6) is provided on the outer side of one end of the suction pipe (5), a branch pipe (7) is provided at the top of the middle part of the suction pipe (5), a sealing cap (8) is provided at the top of the branch pipe (7), and an injection connector (9) is provided at the other end of the suction pipe (5).

3. An adjustable tubular hematoma evacuation device according to claim 2, wherein, The suction assembly (2) includes an inner tube (201) disposed inside the main pipe (1), a connecting sleeve (202) is provided at one end of the inner tube (201), and a suction needle (203) is provided at one end of the connecting sleeve (202).

4. An adjustable tubular hematoma evacuation device according to claim 3, wherein, The outer side of the inner tube (201) is provided with several circumferentially distributed limiting grooves (204), and the outer side of the other end of the inner tube (201) is provided with a sealing ring (205). The diameter of the inner tube (201) gradually increases in the direction away from the suction needle (203).

5. An adjustable tubular hematoma evacuation device according to claim 4, wherein, The inner side of one end of the main pipe (1) is provided with a plurality of limiting blocks (101) that cooperate with the limiting slot (204). The inner side of the other end of the main pipe (1) is provided with a guide section (102). The cross-section of the guide section is a conical structure. One end of the guide section (102) is provided with an annular sealing edge (103), and the inner diameter of the annular sealing edge (103) is equal to the outer diameter of the suction needle (203).

6. An adjustable tubular hematoma evacuation device according to claim 2, wherein, The adjustment component (3) includes a connecting cylinder (301) disposed at one end of the main pipe (1), with connecting pipes (302) passing through both ends of the connecting cylinder (301), mounting plates (303) symmetrically disposed on both sides of the connecting cylinder (301), an adjustment shaft (304) passing through the middle of the mounting plate (303), and an adjustment rotor (305) sleeved on the outer side of the adjustment shaft (304).

7. An adjustable tubular hematoma evacuation device according to claim 6, wherein, The regulating rotor (305) includes a wheel body (3051) disposed outside the regulating shaft (304). A plurality of circumferentially distributed guide plates (3052) are disposed on the outer side of the wheel body (3051), and an arc-shaped baffle (3053) is disposed between the two sets of guide plates (3052).

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