Three-way pipe for venous transfusion

Abstract

The utility model discloses a three-way pipe for intravenous infusion, which relates to the technical field of medical instruments and comprises a three-way pipe main body, two branch pipes symmetrically arranged at one end of the three-way pipe main body, two control components mounted at one ends of the branch pipes in a one-to-one correspondence manner, and two control handles mounted at the other ends of the branch pipes in a one-to-one correspondence manner, the two infusion tubes are mounted on one side of the control assembly in a one-to-one correspondence manner; according to the three-way pipe for venous transfusion, the included angle between the branch pipes is 30 degrees and the branch pipes are Y-shaped, so that the problem caused by the fact that all pipelines of an existing cross-shaped three-way pipe form 90 degrees is solved, all transfusion pipelines are consistent in the large direction and convenient to fix, the pipe folding problem is avoided, the anxiety of a patient is relieved, and the medical workload increased due to the fact that the pipe folding problem is handled back and forth is relieved; meanwhile, the control handle and the control assembly are used for controlling the circulation of the medicament, the pipelines are independently controlled, the operation is simple and convenient, and the device is suitable for first-line departments with heavy clinical work.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to three -way pipe for intravenous infusion. BACKGROUND

[0002] Three -way pipe for intravenous infusion is a kind of tool commonly used in medical care, especially in the scene needing to infuse multiple drugs or carry out complex intravenous therapy, it mainly comprises three -way pipe body, one-way flap and elastic plug, three -way pipe body has three interfaces, is used to connect different infusion apparatus, injector or catheter respectively, one-way flap is used to control the flow direction of liquid, prevents backflow or reflux, and elastic plug is used to close unused interface, to keep the airtightness of system.

[0003] At present, the three -way pipe commonly used in clinic is "+" type, and each passage is 90 degrees, in the use process, different infusion apparatus, injector or catheter need to be connected to different ports, but due to the design angle of its "+" type is too large, simultaneously connecting infusion pipeline is not easy to fix, and vice pipe is also easy to fold. UTILITY MODEL CONTENT

[0004] The utility model aims at providing three -way pipe for intravenous infusion to solve the above-mentioned shortcomings in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: three -way pipe for intravenous infusion, including three -way pipe body, two branch pipes are symmetrically arranged at one end of the three -way pipe body, and the inner cavity of the branch pipe is communicated with the inner cavity of the three -way pipe body, further including:

[0006] Two control assemblies are one-to-one corresponding installation in the one end of branch pipe;

[0007] Two control handles are one-to-one corresponding installation in the top of control assembly;

[0008] Two infusion tubes are one-to-one corresponding installation in the one side of control assembly.

[0009] Further, the included acute angle of the two branch pipe body axis directions is 30 °.

[0010] Further, the control assembly includes:

[0011] The accommodating box is fixedly installed at one end of the branch pipe, and a through hole one is formed through the connecting portion between the outer side of the accommodating box and the branch pipe, the inner cavity of the accommodating box is communicated with the inner cavity of the branch pipe through the through hole one, and a through hole two is formed through the side opposite to the through hole one of the outer side of the accommodating box;

[0012] The output end sealing ring is fixedly installed in the inner wall of the through hole one;

[0013] The input end sealing ring is fixedly installed on the inner wall of the second through hole.

[0014] Further, the control assembly further comprises a spherical valve body, which is movably installed on the side opposite to the output end sealing ring and the input end sealing ring of the control assembly, a third through hole is formed in the middle of the spherical valve body, and a through slot is formed on the outer side of the spherical valve body.

[0015] Further, the control assembly further comprises:

[0016] The control hole is arranged on the top of the containing box and is in communication with the inner cavity of the containing box.

[0017] The control end sealing ring is fixedly installed on the inner wall of the control hole.

[0018] The opening blocking block is fixedly installed on one side of the top of the containing box.

[0019] The closing blocking block is fixedly installed on the other side of the top of the containing box.

[0020] Further, the control handle comprises:

[0021] The clamping seat is clamped on the inner side of the through slot.

[0022] The first connecting shaft is fixedly installed on the top of the clamping seat, the top end of the first connecting shaft is arc-shaped, and the outer side of the arc-shaped end of the first connecting shaft is movably connected to the inner bottom of the control end sealing ring.

[0023] The second connecting shaft is fixedly installed on the top of the first connecting shaft, a first screw thread is formed in the middle of the outer side of the second connecting shaft, and a second screw thread is formed on the top of the outer side of the second connecting shaft.

[0024] Further, the control handle further comprises:

[0025] The rotating grommet is rotatably connected to the inner side of the control hole, and the inner side of the rotating grommet is threadedly connected with the first screw thread.

[0026] The handle is clamped on the outer side of the second connecting shaft, the handle is located above the first screw thread and below the second screw thread, the bottom of the handle is movably connected to the top of the rotating grommet, and the side of the handle has a protrusion.

[0027] The nut is threadedly connected to the outer side of the second screw thread.

[0028] The gasket is sleeved on the outer side of the second connecting shaft, the top of the gasket abuts against the bottom of the nut, and the bottom of the gasket abuts against the side of the top of the handle.

[0029] Further, the infusion tube is fixedly installed on one side of the containing box, and the inner cavity of the infusion tube is in communication with the inner cavity of the containing box through the second through hole.

[0030] Compared with the prior art, the three-way pipe for intravenous infusion provided by the utility model, the branch pipe is arranged as Y-shaped with an included angle of 30° between them, the problem caused by the 90° between the pipe lines of the existing "+" type three-way pipe is improved, the infusion pipe lines are consistent in the general direction, the pipe folding problem is avoided, the anxiety of the patient is reduced, the medical work load increased by the back-and-forth processing of the pipe folding problem is reduced, the circulation of the medicament is controlled through the control handle and the control assembly, the pipe lines are independently controlled, the operation is simple, and the utility model is suitable for the first-line departments with heavy clinical work. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0032] Figure 1 The overall structure schematic view provided by the utility model embodiment is shown in the figure.

[0033] Figure 2 The first local structure schematic view provided by the utility model embodiment one is shown in the figure.

[0034] Figure 3 The first local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0035] Figure 4 The first local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0036] Figure 5 The control assembly local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0037] Figure 6 The second local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0038] Figure 7 The second local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0039] Figure 8 The first control handle local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0040] Figure 9 The third local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0041] Figure 10 The fourth local structure schematic view provided by the utility model embodiment two is shown in the figure.

[0042] Figure 11The fifth schematic view of the local structure is provided for the second embodiment of the utility model.

[0043] Mark explanation:

[0044] 1, three-way pipe main body; 11, branch pipe; 2, control assembly; 201, containing box; 202, through hole one; 203, through hole two; 204, output end sealing ring; 205, input end sealing ring; 206, spherical valve body; 207, through hole three; 208, through slot; 209, control hole; 210, control end sealing ring; 211, opening blocking block; 212, closing blocking block; 3, control handle; 301, clamping seat; 302, connecting shaft one; 303, connecting shaft two; 304, thread one; 305, thread two; 306, rotating gasket; 307, handle; 308, nut; 309, gasket; 4, infusion tube. Specific implementation

[0045] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0046] Example one:

[0047] Please refer to Figures 1-2 , intravenous infusion three-way pipe, including three-way pipe main body 1, three-way pipe main body 1 one end symmetry is provided with two branch pipes 11, and the inner cavity of branch pipe 11 is communicated with the inner cavity of three-way pipe main body 1, further comprising:

[0048] Two control assemblies 2, one one correspondence is installed in the one end of branch pipe 11;

[0049] Two control handles 3, one one correspondence is installed in the top of control assembly 2;

[0050] Two infusion tubes 4, one one correspondence is installed in the one side of control assembly 2.

[0051] The acute angle between the axial directions of the two branch pipes 11 is 30 °.

[0052] Specific implementation: before intravenous infusion, medical staff connects infusion catheter one end to three-way pipe main body 1, the other end is connected with human body, simultaneously connects medicament to infusion tube 4 one end respectively, controls control assembly 2 through control handle 3, and then realizes the control to medicament flow, and medicament is mixed in the inner cavity of three-way pipe main body 1 and then enters human body, and the acute angle between the axial directions of the two branch pipes 11 is 30 °, so that the flow direction of medicament is consistent in the general direction, reduces the influence of the mixing of multiple medicaments caused by angle problem, and then influences the treatment effect, and simultaneously 30 ° angle can effectively avoid pipe folding problem, and reduce the medical care workload increased by back and forth processing pipe folding problem.

[0053] Example two:

[0054] Please refer to Figure 1 , Figures 3-11 The three-way tube for intravenous infusion comprises a three-way tube body 1, two branch tubes 11 symmetrically arranged at one end of the three-way tube body 1, and the inner cavities of the branch tubes 11 are communicated with the inner cavity of the three-way tube body 1.

[0055] Two control assemblies 2 are installed at one end of the branch tubes 11 one by one.

[0056] Two control handles 3 are installed at the top of the control assemblies 2 one by one.

[0057] Two infusion tubes 4 are installed at one side of the control assemblies 2 one by one.

[0058] The control assembly 2 comprises:

[0059] A containing box 201 is fixedly installed at one end of the branch tube 11, and a through hole one 202 is formed through the connecting part between the outer side of the containing box 201 and the branch tube 11, the inner cavity of the containing box 201 is communicated with the inner cavity of the branch tube 11 through the through hole one 202, and a through hole two 203 is formed through the side of the containing box 201 opposite to the through hole one 202.

[0060] An output end sealing ring 204 is fixedly installed on the inner wall of the through hole one 202.

[0061] An input end sealing ring 205 is fixedly installed on the inner wall of the through hole two 203.

[0062] The control assembly 2 further comprises a spherical valve body 206 movably installed on the side of the output end sealing ring 204 opposite to the input end sealing ring 205, a through hole three 207 is formed through the middle of the spherical valve body 206, and a through slot 208 is formed on the outer side of the spherical valve body 206.

[0063] The control assembly 2 further comprises:

[0064] A control hole 209 is arranged at the top of the containing box 201, and the control hole 209 is communicated with the inner cavity of the containing box 201;

[0065] A control end sealing ring 210 is fixedly installed on the inner wall of the control hole 209 at the bottom;

[0066] An opening blocking block 211 is fixedly installed on one side of the top of the containing box 201;

[0067] A closing blocking block 212 is fixedly installed on the other side of the top of the containing box 201.

[0068] The control handle 3 comprises:

[0069] A clamping seat 301 is clamped on the inner side of the through slot 208;

[0070] A connecting shaft 302 is fixedly installed on the top of the clamping seat 301, and the top end of the connecting shaft 302 is arc-shaped. The arc-shaped end of the connecting shaft 302 is movably connected to the inner bottom of the control end sealing ring 210.

[0071] A connecting shaft 303 is fixedly installed on the top of the connecting shaft 302, and a thread 304 is formed in the middle of the outer side of the connecting shaft 303. A thread 305 is formed in the top of the outer side of the connecting shaft 303.

[0072] The control handle 3 further comprises:

[0073] A rotating washer 306 is rotatably connected to the inner side of the control hole 209, and the inner side of the rotating washer 306 is threadedly connected to the thread 304.

[0074] A handle 307 is clamped to the outer side of the connecting shaft 303, and the handle 307 is located above the thread 304 and below the thread 305. The bottom of the handle 307 is movably connected to the top of the rotating washer 306, and one side of the handle 307 has a protrusion.

[0075] A nut 308 is threadedly connected to the outer side of the thread 305.

[0076] A gasket 309 is sleeved on the outer side of the connecting shaft 303, and the top of the gasket 309 abuts against the bottom of the nut 308. The bottom of the gasket 309 abuts against one side of the top of the handle 307.

[0077] An infusion tube 4 is fixedly installed on one side of the containing box 201, and the inner cavity of the infusion tube 4 is connected to the inner cavity of the containing box 201 through the through hole 203.

[0078] DETAILED DESCRIPTION:When the drug needs to be controlled, the medical staff rotates the handle 307, drives the connecting shaft two 303, the connecting shaft one 302 and the clamping seat 301 to rotate. Since the clamping seat 301 is clamped with the inner side of the through groove 208, the rotation of the handle 307 can finally realize the rotation of the spherical valve body 206. When the handle 307 rotates, the projection area of the through hole three 207 in the plane of the through hole one 202 increases continuously, the drug flows into the through hole three 207 through the through hole two 203, and then flows into the branch pipe 11 through the through hole one 202 to realize mixing. With the projection area of the through hole three 207 in the plane of the through hole one 202 increasing from zero, the flow of the drug increases from zero to the maximum when the handle 307 coincides with the axis of the branch pipe 11, and the convex part of the handle 307 abuts against the opening block 211. The projection area of the through hole three 207 in the plane of the through hole one 202 is the largest, and the flow is also the largest. The output end sealing ring 204 and the input end sealing ring 205 can prevent the drug from entering the inner cavity of the containing box 201, and the containing box 201 plays a protective and supporting role. When the drug stops entering, the medical staff reversely rotates the handle 307 to reduce the flow of the drug, and the convex part of the handle 307 abuts against the closing block 212. The normal direction of the through hole three 207 is perpendicular to the normal direction of the through hole one 202, and the flow of the drug is zero at this time.

[0079] During the rotation of the handle 307, the outer side of the arc-shaped end of the connecting shaft one 302 is movably connected with the inner bottom of the control end sealing ring 210, so that the part realizes sealing, and the drug, dust and the like from the outside cannot enter the inner cavity of the containing box 201 to cause mixing and pollution. The rotating pad ring 306 is screw-connected to the outer side of the thread one 304, so that the rotating pad ring 306 rotates in the control hole 209 with the connecting shaft two 303 to play a supporting role, and the screw connection facilitates disassembly and assembly.

[0080] The nut 308 is screw-connected to the outer side of the thread two 305, which facilitates the installation of the handle 307. The gasket 309 plays a supporting role and reduces the wear of the nut 308 and the handle 307.

[0081] Working principle: in use, medical staff will infusion catheter one end connected to the three-way tube body 1, the other end and the human body connected, while the drug is connected to the infusion tube 4 one end, before infusion handle 307 protruding place with the closure block 212 abutment, the drug flow is zero at this time, when infusion, manual rotation handle 307, control the drug from the container through the through hole one 202, through hole three 207 and through hole two 203 into the branch pipe 11 inner chamber for mixing, again through the three-way tube body 1 into the human body, when stop infusion or change the drug, reverse rotation handle 307 to handle 307 protruding place abutment closure block 212 stop, in the process of the drug flow is constantly reduced until zero, after the completion of the change of the drug, reverse rotation handle 307 can, by the control of the rotation angle of handle 307 to control the flow and flow rate of the drug.

[0082] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. A three-way tube for intravenous infusion, comprising a three-way tube main body (1), two branch tubes (11) are symmetrically arranged at one end of the three-way tube main body (1), and inner cavities of the branch tubes (11) are communicated with an inner cavity of the three-way tube main body (1), characterized in that, Also include: Two control components (2) are installed on one end of the branch pipe (11) one by one; Two control handles (3) are installed on the top of the control component (2) one by one; Two infusion tubes (4) are installed on one side of the control component (2) one by one.

2. The three-way stopcock for intravenous solutions according to claim 1, characterized in that The included angle between the two branch pipes (11) is 30°.

3. The three-way stopcock for intravenous solutions according to claim 1, characterized in that The control component (2) comprises: The containing box (201) is fixedly installed on one end of the branch pipe (11), and a through hole (202) is formed in the connecting part of the outer side of the containing box (201) and the branch pipe (11). The inner cavity of the containing box (201) is communicated with the inner cavity of the branch pipe (11) through the through hole (202). A through hole (203) is formed in the side of the outer side of the containing box (201) opposite to the through hole (202). The output end sealing ring (204) is fixedly installed on the inner wall of the through hole (202). The input end sealing ring (205) is fixedly installed on the inner wall of the through hole (203).

4. The three-way stopcock for intravenous solutions according to claim 3, characterized in that The control component (2) further comprises a spherical valve body (206) movably installed on the side of the output end sealing ring (204) opposite to the input end sealing ring (205). A through hole (207) is formed in the middle of the spherical valve body (206), and a through slot (208) is formed in the outer side of the spherical valve body (206).

5. The three-way stopcock for intravenous solutions according to claim 4, characterized in that The control component (2) further comprises: The control hole (209) is arranged on the top of the containing box (201), and is communicated with the inner cavity of the containing box (201). The control end sealing ring (210) is fixedly installed on the inner wall of the control hole (209). The opening blocking block (211) is fixedly installed on one side of the top of the containing box (201). The closing blocking block (212) is fixedly installed on the other side of the top of the containing box (201).

6. The three-way stopcock for intravenous solutions according to claim 5, characterized by The control handle (3) comprises: The clamping seat (301) is clamped in the inner side of the through slot (208). The connecting shaft (302) is fixedly installed on the top of the clamping seat (301), and the top end is arc-shaped. The arc-shaped end of the connecting shaft (302) is movably connected with the bottom of the inner side of the control end sealing ring (210). The connecting shaft (303) is fixedly installed on the top of the connecting shaft (302), and the middle of the outer side is provided with a thread (304), and the top of the outer side is provided with a thread (305).

7. The three-way stopcock for intravenous solutions according to claim 6, characterized by The control handle (3) further comprises: The rotating grommet (306) is rotatably connected to the inner side of the control hole (209), and the inner side is threadedly connected with the thread (304). The handle (307) is clamped on the outer side of the connecting shaft (303), and the handle (307) is located above the thread (304) and below the thread (305). The bottom of the handle (307) is movably connected with the top of the rotating grommet (306), and one side of the handle (307) has a protrusion. The nut (308) is threadedly connected to the outer side of the thread (305). The gasket (309) is sleeved on the outer side of the connecting shaft (303), and the top thereof abuts against the bottom of the nut (308), and the bottom thereof abuts against one side of the top of the handle (307).

8. The three-way stopcock for intravenous solutions according to claim 7, characterized by The infusion tube (4) is fixedly installed on one side of the containing box (201), and the inner cavity thereof is communicated with the inner cavity of the containing box (201) through the through hole two (203).

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