A multi-catheter tube clamp and multi-catheter intravenous catheter

Abstract

This invention discloses a multi-channel clamp and a multi-channel venous catheter, comprising an inner plate and an outer plate. Along its length, the inner plate has a plurality of through holes centered on the midline at intervals. The outer plate includes a pair of mirror-image upper and lower clamps. Along its length, the upper and lower clamps have a plurality of arc-shaped plates, with the annulus formed by the arc-shaped plates concentric with the through holes. Using the inner plate as a base, the arc-shaped plates are adjusted laterally and longitudinally via the adjustable outer plate to achieve an overall clamping effect on multiple channels. Further fine-tuning of individual arc-shaped plates allows the multi-channel clamp to be adapted to channels of different diameters, and allows for localized fine-tuning. The deformable arc-shaped plates also enable control of the diameter of individual channels, thereby controlling the flow rate. Multi-channel intravenous catheters can be used as drip chambers or pre-stored drug bottles, effectively reducing the number of infusion bottles and thus the number of tubing. This facilitates suture management during surgery. Combined with multi-channel clamps, they can enable the individual or simultaneous infusion of various medications, and are easy to control, making them highly practical and widely applicable.

Description

Technical Field

[0001] This invention relates to a tube clamp, specifically a multi-channel tube clamp and a multi-channel intravenous catheter, belonging to the field of medical device technology. Background Technology

[0002] In clinical practice or surgery, there is a need to administer multiple medications simultaneously.

[0003] In practice, multiple infusion bottles are usually connected to a main infusion tube via multiple catheters before being injected into the patient.

[0004] First, the connection of multiple pipelines involves multiple connection points, and there is a certain risk of detachment at these connection points.

[0005] Secondly, in actual practice, the injection of multiple medications may require a specific injection sequence and timing. A single main infusion tubing cannot provide real-time control over multiple medications.

[0006] Therefore, it is necessary to provide a multi-channel clamp and a multi-channel venous catheter. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the present invention aims to provide a multi-channel clamp and a multi-channel venous catheter.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A multi-pipe clamp includes an inner plate and an outer plate;

[0010] Along its length, the inner side plate is provided with a plurality of through holes centered on the center line at intervals;

[0011] The outer side plate includes a pair of mirror-image upper and lower clamping plates; along the length direction, the upper and lower clamping plates are provided with a plurality of arc-shaped plates, and the annulus formed by the arc-shaped plates is concentric with the through hole;

[0012] The inner side plate is provided with a first sliding groove along the height direction; the upper clamping plate and the lower clamping plate are respectively attached to the side of the inner side plate by a first slider placed in the first sliding groove, and a bidirectional screw is provided in the first sliding groove and screwed to the first slider, and the top end of the bidirectional screw protrudes through the top surface of the inner side plate to connect to a nut.

[0013] The upper clamping plate and / or lower clamping plate are screwed to a fine-tuning screw, and the end of the fine-tuning screw is movably connected to the arc-shaped plate.

[0014] Between adjacent through holes, the inner side plate is provided with slotted windows that allow light to pass through both sides;

[0015] The upper and lower clamping plates are provided with a second sliding groove along the length direction, and the outer arc surface of the arc plate is provided with a second slider placed in the second sliding groove.

[0016] Furthermore, the second slider is screwed to a fine-tuning screw, and the end of the fine-tuning screw is movably connected to the arc-shaped plate.

[0017] Furthermore, the aforementioned curved plate is a flexible, soft plate.

[0018] A multi-channel venous catheter, comprising a first inner tube and a second inner tube arranged coaxially, wherein the lumen of the catheter is divided into a first inner lumen, a second inner lumen, and a third inner lumen;

[0019] The inlet tubes of the first inner cavity, the second inner cavity, and the third inner cavity are arranged in a row on the wall of the conduit.

[0020] The outlet tubes of the first inner cavity, the second inner cavity, and the third inner cavity are arranged in a row at the bottom end of the conduit.

[0021] The inlet pipe and / or outlet pipe are held by the aforementioned multi-pipe clamp.

[0022] Furthermore, the tube wall is provided with scale lines corresponding to the capacity of the first inner cavity, the second inner cavity, and the third inner cavity.

[0023] Furthermore, the first inner tube and / or the second inner tube are provided with a liquid guiding structure along the length direction at the tube wall, and the liquid guiding structure is arranged in an arc shape or in a straight line along the tube wall.

[0024] Furthermore, the aforementioned liquid-conducting structure is composed of a locally deformed tube wall, which is grooved, with the recess located on the inner or outer wall of the tube.

[0025] Furthermore, the aforementioned liquid guiding structure is composed of protrusions located on the inner wall and / or outer wall of the tube.

[0026] The advantages of this invention are:

[0027] This invention discloses a multi-pipe clamp that uses an inner plate as a base. An adjustable outer plate allows for the adjustment of an arc-shaped plate in both the horizontal and vertical directions, creating an overall clamping effect for multiple pipes. Further fine-tuning of individual arc-shaped plates allows the clamp to be used with pipes of different diameters, and localized adjustments are possible. The deformable arc-shaped plate also enables control over the diameter of individual pipes, thereby managing flow rate.

[0028] A multi-channel intravenous catheter can be used as a drip chamber or as a pre-storage drug bottle, which can effectively reduce the number of infusion bottles and thus the number of tubing, facilitating suture management during surgery. Combined with multi-channel clamps, it can realize the individual or simultaneous infusion of various drugs, and is easy to control, with strong practicality and wide applicability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a multi-channel venous catheter.

[0030] Figure 2 This is a schematic diagram of the structure of the first inner tube and the second inner tube.

[0031] Figure 3 This is a schematic diagram of a multi-pipe clamp.

[0032] Figure 4 This is a schematic diagram of the outer side plate.

[0033] The labels in the attached diagram have the following meanings: 1. Conduit, 2. Inlet pipe, 3. Outlet pipe, 4. First inner tube, 5. Second inner tube, 6. Liquid guiding structure, 7. Inner side plate, 8. Upper clamping plate, 9. Lower clamping plate, 10. Bidirectional lead screw, 11. Nut, 12. First slide groove, 13. Arc plate, 14. Through hole, 15. Slot window, 16. First slider, 17. Second slide groove, 18. Second slider, 19. Fine adjustment lead screw. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0035] Example 1

[0036] A multi-pipe clamp, consisting of an inner plate 7 and an outer plate.

[0037] The inner side plate 7 is a base plate, and the outer side plate has the side surface of the inner side plate 7.

[0038] Along its length, the inner side plate 7 has several through holes 14 centered on the centerline. For example... Figure 1 As shown, there are 3 through holes 14.

[0039] Along the height direction, the inner side plate 7 is also provided with a first sliding groove 12. Two first sliders 16, which can slide along the height direction, are provided within the first sliding groove 12. A bidirectional lead screw 10, screwed to the two first sliders 16, is also provided within the first sliding groove 12. The top end of the bidirectional lead screw 10 protrudes from the top surface of the inner side plate 7 and is connected to a nut 11. That is, rotating the nut 11 allows the two first sliders 16 to slide away from or towards each other within the first sliding groove 12. Figure 1 As shown, the first slide groove 12 and the first slider 16 are two sets.

[0040] The outer side plate consists of an upper clamping plate 8 and a lower clamping plate 9 that are mirror images of each other. The upper clamping plate 8 and the lower clamping plate 9 are respectively fixed to two first sliders 16. Several sets of semi-circular arc-shaped plates 13 are respectively disposed on the opposite surfaces of the upper clamping plate 8 and the lower clamping plate 9, and the annulus formed by the semi-circular arc-shaped plates 13 is concentric with the through hole 14. That is, rotating the nut 11 allows the upper clamping plate 8 and the lower clamping plate 9 to either approach each other to form an annulus based on the first sliding groove 12 or move away from each other to form two semi-circular arc-shaped plates 13.

[0041] When using,

[0042] At the pipe joint, the pipe is placed in the through hole 14 of the inner side plate 7, and the joint (the overlapping part of the two pipe joints) is placed on the outer side plate. By rotating the nut 11, the upper clamping plate 8 and the lower clamping plate 9 are brought closer to each other, and the joint is clamped by the arc plate 13 to strengthen the joint and prevent the joint from falling off.

[0043] like Figure 1 The structure shown can simultaneously strengthen the connection of three pipes.

[0044] Example 2

[0045] Based on the structure of Example 1,

[0046] The outer arc surface of the arc plate 13 is movably connected to a rotatable fine adjustment screw 19, which is screwed to the upper clamping plate 8 and the lower clamping plate 9.

[0047] Method 1:

[0048] Based on the usage of Embodiment 1, rotating the fine-tuning screw 19 can further fine-tune the connection strength (locking force) of a single pipe, and make the multi-pipe clamp applicable to pipes and joints of different diameters.

[0049] Method 2:

[0050] At the non-connected part of the pipe with a larger diameter, which is held by the arc plate 13, the pipe can be held by the arc plates 13 that are close to each other, so that the cross-sectional area of ​​the pipe is reduced, thereby reducing the flow rate of the liquid medicine flowing through the pipe.

[0051] Example 3

[0052] Based on the structure of Embodiment 2, the arc plate 13 can be configured as a flexible plate, which can be straightened by the bending arc plate 13 after being pressed on the back.

[0053] Based on usage method 2, the closely spaced arc-shaped plates 13 gradually transform into straight plates, further compressing the cross-sectional area of ​​the pipe until the flow is completely blocked.

[0054] Example 4

[0055] Based on the structure of Examples 1-3,

[0056] Between adjacent through holes 14, the inner side plate 7 is also provided with slot windows 15 that allow light to pass through both sides.

[0057] Correspondingly, the upper clamping plate 8 and the lower clamping plate 9 are provided with a second sliding groove 17 along the length direction, and the outer arc surface of the arc plate 13 is provided with a second slider 18 placed in the second sliding groove 17.

[0058] That is, by moving the second slider 18 laterally within the second slide groove 17, multiple sets of arc plates 13 can be moved laterally to correspond with the slot window 15.

[0059] When in use, the large area of ​​the slot window 15 can be used to simultaneously restrict multiple pipes. Multiple pipes can be restricted locally, which facilitates the management of individual pipes in a large number of pipes.

[0060] Furthermore, it allows multi-pipe clamps to be used on pipes with different spacing.

[0061] Example 5

[0062] A multi-channel venous catheter 1, wherein the catheter 1 has a coaxial first inner tube 4 and a second inner tube 5.

[0063] Through the first inner tube 4 and the second inner tube 5, the lumen of the catheter 1 is divided into a first inner lumen, a second inner lumen, and a third inner lumen from the inside out.

[0064] The inlet pipes 2 of the first inner cavity, the second inner cavity, and the third inner cavity are arranged in a row on the wall of the conduit 1, and the outlet pipes 3 are arranged in a row at the bottom end of the conduit 1.

[0065] The inlet pipe 2 and / or outlet pipe 3 are held by the aforementioned multi-pipe clamp to control the rate of inlet and outlet fluid delivery.

[0066] When using,

[0067] The inlet tube 2 of the multi-channel intravenous catheter 1 can be connected to multiple medicine bottles at the same time, that is, the multi-channel intravenous catheter 1 acts as a drip chamber.

[0068] Example 6

[0069] Based on the structure of Example 5,

[0070] When the first, second, and third inner cavities have a certain storage capacity, graduation lines corresponding to the capacities of the first, second, and third inner cavities can be set on the walls of the catheter 1. The medication can be pre-stored in the first, second, and third inner cavities, and the storage and usage amounts can be identified according to the graduation lines. This facilitates reducing the number of supply bottles and pipelines, avoiding excessive pipeline numbers, and reducing the risk of misoperation.

[0071] The catheter 1, the first inner tube 4, and the second inner tube 5 can be made into transparent tubes. The graduation lines can be set to different colors for easy identification.

[0072] Example 7

[0073] Based on the structure of Example 6,

[0074] A liquid guiding structure 6 is provided at the pipe wall of the first inner tube 4 and / or the second inner tube 5. The liquid guiding structure 6 is arranged in an arc shape or in a straight line along the length of the pipe wall.

[0075] The liquid guiding structure 6 is formed by a locally deformed tube wall, which is grooved and its recess is located on the inner wall or outer wall of the tube.

[0076] Alternatively, the liquid guiding structure 6 is composed of protrusions located on the inner wall and / or outer wall of the tube.

[0077] By utilizing the liquid-guiding structure 6, the phenomenon of liquid adhering to the walls in the first, second, and third inner cavities is reduced.

[0078] During intravenous infusion, multiple medications are mixed into different solutions and continuously infused according to the patient's condition. To avoid reactions between different solutions when changing medications, it is often necessary to flush the tubing to remove the previous medications. This is because mixing different solutions may cause discoloration, precipitation, turbidity, or coagulation, which may reduce the efficacy of the medication or produce toxic substances that could cause adverse reactions in the patient.

[0079] The multi-channel intravenous catheter of the present invention can pre-store saline, glucose, or other injectable solutions as flushing fluid in the third lumen, and the inlet tube of the third lumen is connected to a syringe. The first lumen pre-stores a first drug solution, and the second lumen pre-stores a second drug solution.

[0080] After the first dose is injected, close the outlet tube of the first inner cavity, then open the outlet tube of the third inner cavity, and rhythmically push the syringe piston (push-stop-push-stop) to inject flushing fluid, completing the pulse flushing. After flushing, close the outlet tube of the third inner cavity again, open the outlet tube of the second inner cavity, and inject the second dose.

[0081] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A multi-pipe pipe clamp characterized by, Including the inner and outer panels; Along its length, the inner side plate is provided with a plurality of through holes centered on the center line at intervals; The outer side plate includes a pair of mirror-image upper and lower clamping plates; along the length direction, the upper and lower clamping plates are provided with a plurality of arc-shaped plates, and the annulus formed by the arc-shaped plates is concentric with the through hole; The inner side plate is provided with a first sliding groove along the height direction; the upper clamping plate and the lower clamping plate are respectively attached to the side of the inner side plate by a first slider placed in the first sliding groove, and a bidirectional screw is provided in the first sliding groove and screwed to the first slider, and the top end of the bidirectional screw protrudes through the top surface of the inner side plate to connect to a nut.

2. A multi-conduit pipe clamp according to claim 1, wherein, The upper clamping plate and / or the lower clamping plate are screwed to a fine-tuning screw, and the end of the fine-tuning screw is movably connected to the arc-shaped plate.

3. A multi-pipe clamp according to claim 1, characterized in that, Between adjacent through holes, the inner side plate is provided with slot windows that allow light to pass through both sides; The upper and lower clamping plates are provided with a second sliding groove along the length direction, and the outer arc surface of the arc plate is provided with a second slider placed in the second sliding groove.

4. A multi-pipe clamp according to claim 3, characterized in that, The second slider is screwed to a fine-tuning screw, and the end of the fine-tuning screw is movably connected to the arc-shaped plate.

5. A multi-pipe clamp according to claim 3, characterized in that, The curved plate is a flexible, soft plate.

6. A multi-channel intravenous catheter, characterized in that, The lumen of the catheter is divided into a first inner lumen, a second inner lumen, and a third inner lumen by means of a first inner tube and a second inner tube that are coaxially arranged inside. The inlet tubes of the first inner cavity, the second inner cavity, and the third inner cavity are arranged in a row on the wall of the conduit. The outlet tubes of the first inner cavity, the second inner cavity, and the third inner cavity are arranged in a row at the bottom end of the conduit. The inlet pipe and / or outlet pipe are held by the multi-pipe clamp as described in any one of claims 1-5.

7. The multi-channel venous catheter according to claim 6, characterized in that, The tube wall is provided with scale lines corresponding to the capacity of the first inner cavity, the second inner cavity, and the third inner cavity.

8. The multi-channel venous catheter according to claim 6, characterized in that, The first inner tube and / or the second inner tube are provided with a liquid guiding structure along the length direction at the tube wall, and the liquid guiding structure is arranged in an arc shape or in a straight line along the tube wall.

9. The multi-channel venous catheter according to claim 8, characterized in that, The liquid guiding structure is formed by a locally deformed tube wall, which is grooved, with the recess located on the inner or outer wall of the tube.

10. The multi-channel venous catheter according to claim 8, characterized in that, The fluid guiding structure consists of protrusions located on the inner wall and / or outer wall of the tube.

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