Connecting device of microcatheter and drainage tube for chest drainage

Abstract

The utility model relates to the technical field of chest drainage, and discloses a connecting device of a microcatheter and a drainage tube for chest drainage, which comprises the microcatheter and the drainage tube, a connecting mechanism is arranged on the surfaces of the microcatheter and the drainage tube, and a clamping mechanism is arranged on the surface of the drainage tube; the connecting mechanism comprises a sealing assembly and a connecting assembly; the sealing assembly is located between the connecting assemblies. The connecting assembly comprises a connecting plate, the top end face of the drainage tube fixedly penetrates through the bottom face of the connecting plate and extends to the position above the connecting plate, and a sliding block is arranged above the connecting plate. Through a connecting mechanism and a connecting assembly, a clamp is clamped in a clamping groove, so that a sliding block is installed in a sliding groove, connection between the drainage tube and the micro catheter is achieved, the sealing effect between a connecting plate and the micro catheter is improved through a sealing ring of a sealing assembly, and therefore the sealing performance between the micro catheter and the drainage tube is improved; liquid is prevented from leaking from the joint of the drainage tube and the micro-catheter, and the connecting effect of the micro-catheter for chest drainage and the drainage tube is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chest drainage, in particular to a connecting device for a microcatheter and a drainage tube for chest drainage. Background Art

[0002] Thoracic drainage involves inserting a special silicone tube, plastic tube, or surgical chest tube into the chest cavity to continuously remove air, pus, or blood. It is suitable for drainage of pneumothorax, hemothorax, empyema, and various post-thoracotomy procedures, primarily using closed-circuit drainage. The microcatheter connecting the patient to the chest tube is of different thickness than the tube connected to the chest bottle, requiring a connector to connect the microcatheter and the tube.

[0003] According to a Chinese patent published, a connection device for a microcatheter and a drainage tube for chest drainage, with the publication number CN215537090U, includes a flow rate detection tube, the upper right corner of which is connected to a negative pressure regulating tube, and a battery box is provided above the negative pressure regulating tube; a straight tube one is threadedly connected to the top of the flow rate detection tube, the upper part of the straight tube one is threadedly connected to a microcatheter connection part, the upper end of the microcatheter connection part is installed with an outer tube, the inner middle position of the outer tube is installed with an inner tube, and the inner surface of the outer tube is provided with an inner thread; a straight tube two is threadedly connected to the bottom of the flow rate detection tube, the lower part of the straight tube two is threadedly connected to a drainage tube connection part, the lower end of the drainage tube connection part is installed with a conical tube, and the outer surface of the conical tube is provided with an outer thread. This connection device for a microcatheter and a drainage tube for chest drainage is conducive to eliminating blockages and ensuring the smooth flow of the entire drainage channel, and has a wider adaptability and higher flexibility of use.

[0004] In this device, a drainage tube connection portion is connected to the lower thread of the second straight tube. A tapered tube is mounted at the lower end of the drainage tube connection portion. The outer surface of the tapered tube is provided with external threads to connect the drainage tube. However, the existing device still has the following problem: after the drainage tube is connected to the tapered tube, the connection is not sealed properly, resulting in liquid leakage from the drainage tube connection. Therefore, a device for connecting a microcatheter for chest drainage to a drainage tube is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a connection device between a microcatheter and a drainage tube for chest drainage, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a connecting device for a microcatheter and a drainage tube for chest drainage, comprising a microcatheter and a drainage tube, wherein the surfaces of the microcatheter and the drainage tube are provided with a connecting mechanism, and the surface of the drainage tube is provided with a clamping mechanism;

[0007] The connecting mechanism includes a sealing component and a connecting component;

[0008] The sealing component is located between the connecting components;

[0009] The connecting assembly includes a connecting plate, the top surface of the drainage tube is fixedly passed through the bottom surface of the connecting plate and extends to the top of the connecting plate, a slider is provided above the connecting plate, a connecting block is provided on the surface of the microcatheter, a sliding groove adapted to the slider is provided on the bottom surface of the connecting block, a first cavity is provided inside the slider, a clamping block, a pull rod and a first spring are provided inside the first cavity, and a clamping groove adapted to the clamping block is provided on the rear side of the slider;

[0010] The sealing component comprises a sealing ring, a placement groove is formed through the bottom surface of the micro-catheter, and the sealing ring is located inside the placement groove.

[0011] Preferably, the top surface of the connecting plate is sealedly connected to the bottom surface of the microcatheter via a sealing ring, thereby improving the sealing effect of the connection between the microcatheter and the drainage tube.

[0012] Preferably, the bottom surface of the slider is fixedly connected to the top surface of the connecting plate, the top surface of the slider slides through the bottom surface of the connecting block and extends into the inside of the slide groove, and the side surface of the slider is fixedly connected to the surface of the microcatheter.

[0013] Preferably, the front end face of the card block slides through the rear side face of the slider and extends to the inside of the card slot, the rear end face of the card block is fixedly connected to the front end face of the first spring, and the rear end face of the first spring is fixedly connected to the rear side face inside the first cavity, thereby improving the stability of the first spring connection.

[0014] Preferably, the front end face of the pull rod is fixedly connected to the rear end face of the block, and the rear end face of the pull rod slides through the rear side face inside the first cavity and extends to the rear side of the connecting block, so that the pull rod can slide the block out of the slot.

[0015] Preferably, the clamping mechanism includes a rotating assembly and a clamping assembly;

[0016] The clamping assembly is located on the surface of the rotating assembly;

[0017] The rotating assembly includes a ring plate, the bottom end surface of the drainage tube passes through the top surface of the ring plate and extends to the bottom of the ring plate, an elastic plate is provided on the inner side of the ring plate, a second cavity is provided inside the ring plate, a first rotating rod and a second rotating rod are provided inside the second cavity, a bevel gear is fixedly sleeved on the surface of the first rotating rod and the surface of the second rotating rod, and the first rotating rod and the second rotating rod are vertically arranged;

[0018] The clamping assembly comprises a connecting clamp, and a clamping plate, a rubber plate, a second spring and an adjusting rod are arranged on the inner side of the connecting clamp.

[0019] Preferably, the surface of the elastic plate is fixedly connected to the inner side of the ring plate, and the inner side of the elastic plate is squeezed and connected to the surface of the drainage tube. The drainage tube and the ring plate are connected through the elastic plate, and the elastic plate will not affect the normal flow of liquid inside the drainage tube.

[0020] Preferably, the top end surface of the first rotating rod passes through the top surface inside the second cavity and extends to above the ring plate, and the left end surface of the second rotating rod passes through the left side surface inside the second cavity and extends to the left side of the ring plate. The surface of the second rotating rod and the surface of the first rotating rod are both rotatably connected to the inner wall of the ring plate through the bearing seat, and the two bevel gears are engaged with the bevel surfaces, and the second rotating rod is driven to rotate by the first rotating rod.

[0021] Preferably, the left end face of the second rotating rod is fixedly connected to the right side face of the connecting clamp, the second spring is sleeved on the surface of the adjusting rod, the top end face of the adjusting rod slides through the inner top surface of the connecting clamp and extends to above the connecting clamp, and the position of the splint can be adjusted by the adjusting rod.

[0022] Preferably, the bottom end surface of the adjusting rod is fixedly connected to the top surface of the splint, the bottom end surface of the splint is fixedly connected to the top surface of the rubber plate, and the top and bottom end surfaces of the second spring are respectively fixedly connected to the inner top surface of the connecting clip and the top surface of the splint, so that the connecting clip can be clamped on clothes or objects of different thicknesses.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the connecting device of the microcatheter for chest drainage and the drainage tube, through the connecting mechanism, the connecting component is clamped inside the card slot, so that the slider is installed inside the slide slot to achieve the connection between the drainage tube and the microcatheter, the sealing component uses a sealing ring to increase the sealing effect between the connecting plate and the microcatheter, thereby increasing the sealing between the microcatheter and the drainage tube, avoiding liquid leakage from the connection between the drainage tube and the microcatheter, and improving the connection effect of the microcatheter for chest drainage and the drainage tube; through the clamping mechanism, the clamping component uses the clamping plate to clamp the connecting clip on the patient's clothes or the bedside of the hospital bed, thereby achieving the fixation of the drainage tube and avoiding entanglement between the drainage tube and the microcatheter, the rotating component uses the elastic plate to connect the ring plate to the drainage tube, and the second rotating rod rotates to adjust the angle of the connecting clip, so as to facilitate the position of the connecting frame at the position where clamping is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall main perspective view of the utility model;

[0025] Figure 2 This is a front sectional perspective view of the slider of the utility model;

[0026] Figure 3 This is a top-side sectional perspective view of the clamping block of the utility model;

[0027] Figure 4This is a front cutaway perspective view of the first rotating rod of the present invention;

[0028] Figure 5 For this utility model Figure 3 Enlarged stereogram of area A in the middle;

[0029] Figure 6 For this utility model Figure 4 Enlarged stereogram of area B in the middle.

[0030] In the figure: microcatheter 1, drainage tube 2, connecting mechanism 3, connecting plate 301, sealing ring 302, connecting block 303, slider 304, clamping block 305, pull rod 306, first spring 307, clamping mechanism 4, ring plate 401, elastic plate 402, first rotating rod 403, second rotating rod 404, connecting clamp 405, adjusting rod 406, clamping plate 407, rubber plate 408, second spring 409. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0032] See also Figure 1 - Figure 6 The utility model provides a technical solution: a connecting device for a microcatheter and a drainage tube for chest drainage, comprising a microcatheter 1 and a drainage tube 2, a connecting mechanism 3 being provided on the surface of the microcatheter 1 and the drainage tube 2, and a clamping mechanism 4 being provided on the surface of the drainage tube 2;

[0033] The connecting mechanism 3 includes a sealing component and a connecting component;

[0034] The sealing component is located between the connecting components;

[0035] The connecting assembly includes a connecting plate 301. The top surface of the drainage tube 2 is fixed through the bottom surface of the connecting plate 301 and extends above the connecting plate 301. A slider 304 is provided above the connecting plate 301. A connecting block 303 is provided on the surface of the microcatheter 1. A sliding groove adapted to the slider 304 is provided on the bottom surface of the connecting block 303. A first cavity is provided inside the slider 304. A clamping block 305, a pull rod 306 and a first spring 307 are provided inside the first cavity. A clamping groove adapted to the clamping block 305 is provided on the rear side of the slider 304.

[0036] The sealing assembly includes a sealing ring 302. A placement groove is provided on the bottom surface of the microcatheter 1. The sealing ring 302 is located inside the placement groove. The top surface of the connecting plate 301 is sealed and connected to the bottom surface of the microcatheter 1 through the sealing ring 302. The bottom surface of the slider 304 is fixedly connected to the top surface of the connecting plate 301. The top surface of the slider 304 slides through the bottom surface of the connecting block 303 and extends to the inside of the slide groove. The side surface of the slider 304 is fixedly connected to the surface of the microcatheter 1. The front end surface of the card block 305 slides through the rear side surface of the slider 304 and extends to the inside of the card groove. The rear end surface of the card block 305 is fixedly connected to the front end surface of the first spring 307. The rear end surface of the first spring 307 is fixedly connected to the rear side surface inside the first cavity. The front end face of the pull rod 306 is fixedly connected to the rear end face of the card block 305, and the rear end face of the pull rod 306 slides through the rear side face inside the first cavity and extends to the rear side of the connecting block 303. Through the connecting mechanism 3, the connecting component is clamped in the card slot using the card 305, so that the slider 304 is installed in the slide slot to realize the connection between the drainage tube 2 and the microcatheter 1. The sealing component uses the sealing ring 302 to increase the sealing effect between the connecting plate 301 and the microcatheter 1, thereby increasing the sealing between the microcatheter 1 and the drainage tube 2, avoiding liquid leakage from the connection between the drainage tube 2 and the microcatheter 1, and improving the connection effect between the microcatheter for chest drainage and the drainage tube. Example 2

[0037] On the basis of the first embodiment, the preferred embodiment of the connection device between the microcatheter and the drainage tube provided by the present invention is as follows: Figure 1 、 Figure 4 and Figure 5 As shown: the clamping mechanism 4 includes a rotating component and a clamping component;

[0038] The clamping assembly is located on the surface of the rotating assembly;

[0039] The rotating assembly includes a ring plate 401. The bottom end surface of the drainage tube 2 extends through the top surface of the ring plate 401 to the bottom of the ring plate 401. An elastic plate 402 is provided on the inner side of the ring plate 401. A second cavity is defined inside the ring plate 401. A first rotating rod 403 and a second rotating rod 404 are provided inside the second cavity. Bevel gears are fixedly mounted on the surfaces of the first rotating rod 403 and the second rotating rod 404. The first rotating rod 403 and the second rotating rod 404 are vertically arranged.

[0040] The clamping assembly includes a connecting clamp 405, and a clamping plate 407, a rubber plate 408, a second spring 409 and an adjusting rod 406 are provided on the inner side of the connecting clamp 405. The surface of the elastic plate 402 is fixedly connected to the inner side of the ring plate 401, and the inner side of the elastic plate 402 is squeezed and connected to the surface of the drainage tube 2. The top surface of the first rotating rod 403 passes through the top surface of the second cavity and extends to the top of the ring plate 401. The left end surface of the second rotating rod 404 passes through the left side of the second cavity and extends to the left side of the ring plate 401. The surface of the second rotating rod 404 and the surface of the first rotating rod 403 are both rotatably connected to the inner wall of the ring plate 401 through the bearing seat. The two bevel gears are meshed with each other on the bevel surface. The left end surface of the second rotating rod 404 is fixedly connected to the right side of the connecting clamp 405. The second spring 409 is sleeved on the surface of the adjusting rod 406. The top surface of 06 slides through the inner top surface of the connecting clip 405 and extends above the connecting clip 405. The bottom end surface of the adjusting rod 406 is fixedly connected to the top surface of the splint 407. The bottom end surface of the splint 407 is fixedly connected to the top surface of the rubber plate 408. The top and bottom end surfaces of the second spring 409 are respectively fixedly connected to the inner top surface of the connecting clip 405 and the top surface of the splint 407. Through the clamping mechanism 4, the clamping assembly uses the splint 407 to clamp the connecting clip 405 on the patient's clothes or the bedside of the bed to fix the drainage tube 2 and avoid entanglement between the drainage tube 2 and the microcatheter 1. The rotating assembly uses the elastic plate 402 to connect the ring plate 401 to the drainage tube 2. The second rotating rod 404 rotates to adjust the angle of the connecting clip 405, so as to facilitate the position of the connecting frame 405 at the position where clamping is required.

[0041] When in use, the drainage tube 2 is moved upward, and the pull rod 306 is pulled. The pull rod 306 drives the connected block 305 to move into the cavity. The block 305 squeezes the connected first spring 307, and the drainage tube 2 drives the connecting plate 303 and the slider 304 to move upward. The slider 304 slides into the inside of the slide groove, and the pull rod 306 is released. The force of the first spring 307 drives the block 305 to slide out of the cavity and slide into the inside of the slot, thereby installing the slider 304 inside the slide groove, thereby realizing the connection between the microcatheter 1 and the drainage tube 2, and the sealing ring 302 increases the sealing effect between the microcatheter 1 and the drainage tube 2; slide the elastic plate 402 and the ring plate 401 from the lower end of the drainage tube 2 to the drainage tube 2 intermediate position, rotate the first rotating rod 403, the first rotating rod 403 drives the connected bevel gear to rotate, and the engagement of the two bevel gears causes the second rotating rod 404 to rotate, and the second rotating rod 404 drives the connecting clamp 405 to rotate, so that the connecting clamp 405 rotates to a position suitable for clamping, pull the adjusting rod 406, and the adjusting rod 406 drives the clamping plate 407 to move, so that the clamping plate 407 squeezes the connected second spring 409, and moves the connecting clamp 405 to the patient's clothes or the bedside. Release the adjusting rod 406, and the force of the second spring 409 pushes the clamping plate 407 downward, so that the connecting clamp 405 is clamped to the patient's clothes or the bedside, thereby fixing the drainage tube 2.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for connecting a microcatheter and a drainage tube for chest drainage, comprising a microcatheter (1) and a drainage tube (2), characterized in that: The surfaces of the microcatheter (1) and the drainage tube (2) are provided with a connecting mechanism (3), and the surface of the drainage tube (2) is provided with a clamping mechanism (4); The connecting mechanism (3) comprises a sealing component and a connecting component; The sealing component is located between the connecting components; The connection assembly includes a connection plate (301), the top end surface of the drainage tube (2) is fixedly passed through the bottom surface of the connection plate (301) and extends to the top of the connection plate (301), a slider (304) is provided above the connection plate (301), a connection block (303) is provided on the surface of the microcatheter (1), a sliding groove adapted to the slider (304) is provided through the bottom surface of the connection block (303), a first cavity is provided inside the slider (304), a clamping block (305), a pull rod (306) and a first spring (307) are provided inside the first cavity, and a clamping groove adapted to the clamping block (305) is provided through the rear side surface of the slider (304); The sealing component comprises a sealing ring (302); a placement groove is provided through the bottom surface of the microcatheter (1); and the sealing ring (302) is located inside the placement groove.

2. The connecting device for a microcatheter and a drainage tube for chest drainage according to claim 1, characterized in that: The top surface of the connecting plate (301) is sealedly connected to the bottom surface of the microcatheter (1) via a sealing ring (302).

3. The connecting device for a microcatheter and a drainage tube for chest drainage according to claim 1, characterized in that: The bottom surface of the slider (304) is fixedly connected to the top surface of the connecting plate (301), the top surface of the slider (304) slides through the bottom surface of the connecting block (303) and extends into the interior of the slide groove, and the side surface of the slider (304) is fixedly connected to the surface of the microcatheter (1).

4. The connecting device for a microcatheter and a drainage tube for chest drainage according to claim 1, characterized in that: The front end face of the clamping block (305) slides through the rear side face of the slider (304) and extends into the interior of the clamping slot. The rear end face of the clamping block (305) is fixedly connected to the front end face of the first spring (307), and the rear end face of the first spring (307) is fixedly connected to the rear side face inside the first cavity.

5. The connecting device for a microcatheter and a drainage tube for chest drainage according to claim 1, characterized in that: The front end face of the pull rod (306) is fixedly connected to the rear end face of the clamping block (305), and the rear end face of the pull rod (306) slides through the rear side face inside the first cavity and extends to the rear side of the connecting block (303).

6. The connecting device for a microcatheter and a drainage tube for chest drainage according to claim 1, characterized in that: The clamping mechanism (4) comprises a rotating assembly and a clamping assembly; The clamping assembly is located on the surface of the rotating assembly; The rotating assembly includes a ring plate (401), the bottom end surface of the drainage tube (2) passes through the top surface of the ring plate (401) and extends to the bottom of the ring plate (401), an elastic plate (402) is provided on the inner side of the ring plate (401), a second cavity is provided inside the ring plate (401), a first rotating rod (403) and a second rotating rod (404) are provided inside the second cavity, a bevel gear is fixedly provided on the surface of the first rotating rod (403) and the surface of the second rotating rod (404), and the first rotating rod (403) and the second rotating rod (404) are vertically arranged; The clamping assembly comprises a connecting clamp (405), wherein a clamping plate (407), a rubber plate (408), a second spring (409) and an adjusting rod (406) are provided on the inner side of the connecting clamp (405).

7. The connecting device for a microcatheter and a drainage tube for chest drainage according to claim 6, characterized in that: The surface of the elastic plate (402) is fixedly connected to the inner side of the ring plate (401), and the inner side of the elastic plate (402) is extruded and connected to the surface of the drainage tube (2).

8. The device for connecting a microcatheter for chest drainage to a drainage tube according to claim 6, characterized in that: The top end surface of the first rotating rod (403) passes through the top surface of the second cavity and extends to the top of the ring plate (401). The left end surface of the second rotating rod (404) passes through the left side of the second cavity and extends to the left side of the ring plate (401). The surface of the second rotating rod (404) and the surface of the first rotating rod (403) are both rotatably connected to the inner wall of the ring plate (401) through a bearing seat, and the two bevel gears are meshed with each other.

9. The device for connecting a microcatheter for chest drainage to a drainage tube according to claim 6, characterized in that: The left end face of the second rotating rod (404) is fixedly connected to the right side face of the connecting clamp (405), the second spring (409) is sleeved on the surface of the adjusting rod (406), and the top end face of the adjusting rod (406) slides through the inner top face of the connecting clamp (405) and extends to above the connecting clamp (405).

10. The device for connecting a microcatheter for chest drainage and a drainage tube according to claim 6, characterized in that: The bottom end surface of the adjusting rod (406) is fixedly connected to the top surface of the clamp (407), the bottom end surface of the clamp (407) is fixedly connected to the top surface of the rubber plate (408), and the top and bottom end surfaces of the second spring (409) are fixedly connected to the inner top surface of the connecting clamp (405) and the top surface of the clamp (407), respectively.

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