Disposable medical sterile multi-channel cock

Abstract

The utility model relates to a disposable medical sterile multi-channel cock, which comprises an octagonal connecting box, the octagonal connecting box comprises a cavity, and three to seven first mounting ports and a second mounting port which are communicated with the cavity, each first mounting port is fixedly provided with a liquid inlet pipe, and each second mounting port is fixedly provided with a liquid outlet pipe. A locking connecting cover is arranged at the liquid inlet end of the liquid inlet pipe, a liquid outlet pipe is fixedly installed on the inner wall of the second installation opening, a flow guide pipe is arranged in the cavity, one end of the flow guide pipe is correspondingly connected with the liquid outlet end of the liquid inlet pipe, and the other end of the flow guide pipe is communicated with the liquid inlet end of the liquid outlet pipe. Through the arrangement of the flow guide tube and the locking connecting cover, the purposes that the cock is convenient to fix, and the situation that the infusion tube accidentally falls off due to traction and gravity is reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a disposable medical sterile multi-channel stopcock. Background Art

[0002] Existing disposable sterile stopcocks are mostly two-way stopcocks and three-way stopcocks. However, in the clinical care of critically ill patients, when patients need to take multiple medications together, multiple three-way connectors need to be connected: one to the patient end, one to the next three-way connector, and one to the medication end. As a result, each three-way connector can only add one medication. This leads to increased consumables and increased overall hospitalization costs for patients. The process of connecting multiple three-way connectors increases the infection rate. The connection of multiple three-way connectors wastes the effective working time of medical staff. In addition, one three-way connector is 4 cm, and five three-way connectors are 20 cm. After the five three-way connectors are connected, they are difficult to fix. When the patient turns over or twists, they are easily pulled or slipped down the back, causing accidental catheter dislocation and the occurrence of pressure sores.

[0003] A Chinese patent, publication number CN207605231U, discloses a multi-channel infusion connection tube. This device utilizes a converging connector and multiple inlet and outlet ports connected to the converging connector to facilitate the simultaneous use of multiple medications. However, the inlet end of the device's inlet tube requires a tee connection, which doesn't address the issue of the tube being easily pulled or slipped when the patient turns or twists, potentially causing it to accidentally fall off.

[0004] In order to solve the above problems, it is necessary to develop a disposable medical sterile multi-channel stopcock that is safer and more convenient to use. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a disposable medical sterile multi-channel stopcock to solve the problem of easy pulling and sliding caused by the use of multiple three-way stopcocks in series in the prior art.

[0006] The utility model provides a disposable medical sterile multifunctional stopcock, comprising an octagonal connecting box, wherein the octagonal connecting box comprises a chamber and a first mounting port and a second mounting port communicated with the chamber, wherein the number of the first mounting ports is 3-7, and a liquid inlet pipe is fixedly mounted on the inner wall of each first mounting port, and a locking connecting cover is provided at the liquid inlet end of the liquid inlet pipe, and a liquid outlet pipe is fixedly mounted on the inner wall of the second mounting port, and a guide pipe is provided in the chamber, wherein one end of the guide pipe is respectively connected to the liquid outlet end of the liquid inlet pipe, and the other end is communicated with the liquid inlet end of the liquid outlet pipe.

[0007] Preferably, the octagonal connection box is made of medical materials;

[0008] Preferably, the outer surface of the locking connection cover is provided with a plurality of anti-slip convex strips;

[0009] Preferably, the anti-slip ridges are arranged in a circumferential array on the outer surface of the locking connection cover;

[0010] Preferably, a button switch corresponding to the liquid inlet pipe is provided on the upper surface of the octagonal connection box;

[0011] Preferably, the button switch includes a button sleeve, a button core, an inner shell, a water blocking block, a spring and an outer shell that cooperate with a rebound button and a return spring located below the rebound button. The water blocking block is laterally provided with a first through hole, and the outer shell is laterally provided with a second through hole, and the first through hole and the second through hole cooperate with each other.

[0012] Preferably, a connecting pipe is provided on the liquid outlet end surface of the liquid outlet pipe;

[0013] Preferably, a filter screen is provided on the inner wall of the liquid outlet pipe;

[0014] The present invention has at least one of the following beneficial technical effects:

[0015] The utility model provides a guide tube and a locking connection cover through an octagonal connection box, which can achieve the purpose of convenient fixation and reduce accidental slippage of the catheter due to traction and gravity, and avoid the residual medicine in the stopcock from being continuously infused into the patient's body after the medicine is suspended; by providing multiple liquid inlet tubes, the multi-channel stopcock can be connected to multiple medicines, solving the need for critically ill patients to use multiple medicines together, while reducing the use and waste of consumables, and reducing the patient's expenses, reducing the risk of catheter-related infection and reducing the working time of medical staff. It is highly practical and worthy of promotion.

[0016] The utility model is provided with anti-slip convex strips, which can facilitate the operator to operate the locking connection cover. At the same time, by providing a filter mesh disk, the sediment in the medicine solution can be effectively filtered, thereby further improving the practicality of the multi-channel stopcock. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The display is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 The display is a bottom-up structural schematic diagram of the present utility model;

[0019] Figure 3 The display is a schematic diagram of the top-sectional structure of the utility model;

[0020] Figure 4 Shown is a structural diagram of the liquid inlet pipe of the push button switch of the utility model in a closed state;

[0021] Figure 5Shown is a structural diagram of the button switch of the utility model in the open state of the liquid inlet pipe;

[0022] Figure 6 Shown is a schematic diagram of the structure of various parts of the push button switch of the utility model.

[0023] Component number description

[0024] 1 Octagonal connection box

[0025] 2 Liquid inlet pipe

[0026] 21 Lock the connection cover

[0027] 211 anti-slip ribs

[0028] 3-button switch

[0029] 31 Button cover

[0030] 311 positioning bump

[0031] 312 Sawtooth

[0032] 32 button core

[0033] 321 Positioning Slide

[0034] 322 First Incline

[0035] 33 inner shell

[0036] 331 Strip-shaped support

[0037] 332 vertical chute

[0038] 333 Second Incline

[0039] 333-1 Narrow Slope

[0040] 333-2 Wide Bevel

[0041] 34 Water blocking block

[0042] 341 First through hole

[0043] 342 fixed shaft

[0044] 35 return spring

[0045] 36 shell

[0046] 361 Second through hole

[0047] 4 Liquid outlet pipe

[0048] 41 connecting pipe

[0049] 42 filter tray

[0050] 5. Flow guide tube DETAILED DESCRIPTION

[0051] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification.

[0052] See also Figure 1-3 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this utility model. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by this utility model without affecting the efficacy and purpose that can be achieved by this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of this utility model without substantially changing the technical content.

[0053] like Figure 1 As shown, the embodiment of the present application provides a disposable medical sterile multi-channel stopcock, including an octagonal connection box, the octagonal connection box includes a chamber 1 and a first mounting port and a second mounting port communicating with the chamber 1, the number of the first mounting ports is 3-7, each of the first mounting ports is fixedly installed with a liquid inlet pipe 2, the liquid inlet end of the liquid inlet pipe is provided with a locking connection cover 21, and the inner wall of the second mounting port is fixedly installed with a liquid outlet pipe 4, see Figure 3 A flow guide tube 5 is provided in the chamber, one end of which is connected to the liquid outlet end of the liquid inlet tube 2, and the other end is connected to the liquid inlet end of the liquid outlet tube 4.

[0054] The octagonal connection box is made of medical materials, specifically polyurethane (PU), thermoplastic elastomer (TPE), etc., to ensure that the octagonal connection box has little adsorption effect on the drug, ensures the efficacy of the drug, has good flexibility, transparency and puncture resistance, and is easy to operate and observe.

[0055] In the above device, the first mounting port and the second mounting port are respectively provided on the outer peripheral side of the octagonal connection box. By setting the number of the first mounting ports to 3-7, it is convenient for the patient to use multiple drugs at the same time. In the actual production process, the number of the first mounting ports can be flexibly adjusted according to needs or different product models. In a specific embodiment, if Figure 1As shown, the number of the first installation ports is 5. By designing 5 first installation ports, different drugs can be used together, the use and waste of consumables can be reduced, the cost for patients can be reduced, and the risk of catheter-related infection can be reduced.

[0056] In a preferred embodiment, the first mounting port and the liquid inlet tube 2 are integrally formed. Specifically, the liquid inlet end of the liquid inlet tube 2 is exposed from the side of the octagonal connection box, and the liquid outlet end of the liquid inlet tube 2 extends from the cavity, so that one end can be connected to the liquid outlet end of the drug infusion tube and the other end can enter the cavity.

[0057] In a preferred embodiment, the liquid inlet end of each liquid inlet tube 2 is equipped with a locking connection cap 21. Specifically, the locking connection cap 21 prevents the catheter from accidentally slipping out during infusion due to pulling or other manipulations. In a specific embodiment, the outer surface of the locking connection cap 21 is provided with a plurality of anti-slip ridges 211. These ridges 211 are arranged in a circular array on the outer surface of the locking connection cap 21, facilitating operator operation of the locking connection cap 21. Specifically, the anti-slip ridges 211 are made of non-slip plastic.

[0058] In one embodiment, the liquid inlet end of the liquid inlet tube 2 is provided with a plurality of notches and external threads, and the locking connection cap 21 is provided with matching internal threads. During use, the drug infusion tube is inserted into the liquid inlet end of the liquid inlet tube 2, and the locking connection cap 21 is tightened to close the liquid inlet end, thereby clamping the drug infusion tube and sealing it with the liquid inlet tube 2.

[0059] See also Figure 1 In one embodiment, the octagonal connection box is provided with pushbutton switches 3 corresponding to each inlet tube 2. By operating the pushbutton switches 3, the corresponding inlet tubes can be switched on and off, allowing the operator to flexibly increase or decrease the number of inlet tubes 2, preventing the ingress of gas and enhancing safety and hygiene. Furthermore, the interaction between the pushbutton switches 3 and the flow tubes 5 prevents residual medication from being infused into the patient's body after medication administration has been suspended.

[0060] In a specific embodiment, if Figures 4-5 As shown, the button switch 3 includes a button sleeve 31, a button core 32, an inner shell 33, a water blocking block 34, a reset spring 35 and an outer shell 36 that cooperate with each other. The water blocking block 34 is laterally provided with a first through hole 341, and the outer shell 36 is laterally provided with a second through hole 361. The first through hole 341 and the second through hole 361 cooperate with each other.

[0061] like Figure 6As shown, the button cover 31 is a hollow structure with an open bottom. 2N serrations 312 are continuously distributed along the bottom circumference. Several vertical positioning protrusions 311 are distributed along the outer wall of the button cover 31. Specifically, the serrations 312 are of uniform size. The number of positioning protrusions 311 is at least two, and may be N. In a preferred embodiment, the number of positioning protrusions 311 is 2N.

[0062] The button core 32 is configured as a hollow cylinder. The upper portion of the button core 32 is sleeved within the button housing 31. The lower outer wall is provided with N positioning slideways 321 evenly distributed around the circumference. The tops of the positioning slideways 321 are provided with first inclined surfaces 322 that mate with the saw teeth 312, adapted to slide against one of the inclined surfaces of the saw teeth 312. In a preferred embodiment, the thickness of the first inclined surface 322 is greater than that of the saw teeth 312, so that the saw teeth 312 protrude beyond the saw teeth 312 when they abut against the first inclined surface 322. The inclination angle of the first inclined surface 322 is consistent with the inclination angle of one side surface of the matching saw teeth 312.

[0063] Specifically, the inner shell 33 is slidably connected with the button sleeve 31 and the button core 32. The inner shell 33 is fixed in the cavity of the octagonal connecting box. The inner wall of the inner shell 33 is provided with N circumferentially evenly distributed strip-shaped retaining portions 331. Vertical slide grooves 332 are formed between adjacent strip-shaped retaining portions 331. The width of the vertical slide grooves 332 matches the width of the positioning protrusion 311 and the positioning slide 321. In a specific embodiment, the bottom of the strip-shaped resisting portion 331 is provided with a wide inclined surface 333-2 and a narrow inclined surface 333-1 that match the first inclined surface 322, so as to be suitable for sliding fit with the first inclined surface 322 of the positioning slide 321. The wide inclined surface 333-2 and the narrow inclined surface 333-1 are both inclined in the same direction as the matching first inclined surface 322, and the tips of the wide inclined surface 333-2 and the narrow inclined surface 333-1 are staggered with the tips of the saw teeth 312. The sum of the circumferential widths of the vertical slide groove 332 and the narrow inclined surface 333-1 is consistent with the circumferential width of the wide inclined surface 333-2. In a preferred embodiment, a vertical groove for the positioning protrusion 311 to slide is also formed in the middle of the strip-shaped support portion 331, thereby forming 2N vertical grooves 332 on the inner shell 33, and the button cover positioning protrusion 311 can move in the vertical grooves 332. This design is more conducive to limiting the movement direction of the button cover 31.

[0064] In one specific embodiment, the upper bottom surface of the water blocking block 34 abuts the button core 32. The water blocking block 34 is provided with a transversely disposed first through-hole 341, through which the liquid inlet pipe 2 passes. In a preferred embodiment, a fixed shaft 342 is axially disposed on the upper bottom surface of the water blocking block 34. The fixed shaft 342 passes through the inner housing 33 and abuts the upper portion of the button core 32. The lower bottom surface of the water blocking block 34 abuts the return spring 35.

[0065] The shell 36 is fixed in the chamber of the octagonal connection box 1. The water blocking block 34 and the return spring 35 are set inside the shell 36. The lower bottom surface of the inner cavity of the shell 36 abuts the lower bottom surface of the return spring 35. The shell 36 is provided with a pair of transversely arranged second through holes 361. The second through holes 361 match the first through holes 341 to facilitate the passage of the liquid inlet pipe 2.

[0066] When the button 33 is pressed down, the button core 32 will make a small rotation relative to the button cover 31 and the inner shell 33, thereby forming a high-position positioning state in which the positioning slide 321 is located in the vertical slide groove 332 of the inner shell and the low-position positioning state in which the tip of the first inclined surface of the positioning slide is against the intersection of the wide inclined surface 333-2 and the narrow inclined surface 333-1 of the inner shell. Since the water blocking block 34 and the button core 32 are against each other under the action of the reset spring 35, the water blocking block 34 will move up and down synchronously with the button core 32. When the button core 32 is in the high-position positioning state, Figure 4 As shown, the first through hole 341 of the water blocking block 34 is misaligned with the second through hole 361 of the housing 36, the liquid inlet pipe 2 is clamped and the flow is cut off. When the button core 32 is in the low position, as shown in FIG. Figure 5 As shown, the return spring 35 is compressed, the first through hole 341 of the water block 34 is aligned with the second through hole 361 of the shell 36, and the liquid inlet pipe 2 flows. The design of the button cover, button core, spring and inner shell is related to the existing technology. The action mechanism of the button core 32 rotating slightly relative to the button cover 31 and the inner shell 33 to alternate between the high position and the low position can be seen in https: / / v.qq.com / x / page / j09491ey33m.html .

[0067] When the button switch 3 is pressed, the button cover 31 moves downward, and one side surface of the serration 312 of the button cover 31 abuts against the first inclined surface 322 of the button core 32, driving the button core 32 to move downward along the vertical slide groove 331 until the positioning slide 321 slides out of the vertical slide groove 331, and the first inclined surface 322 disengages from the vertical slide groove 331, and the button cover 31 continues to move downward. Under the upward rebound force of the return spring 35, the tip of the first inclined surface 322 slides along the inclined surface of the button cover serration 312 to the groove of the serration 312 The button core 32 rotates slightly relative to the button cover 31 during this process. When the user lets go, the first inclined surface 322 moves upward against the button cover serrations 312 under the action of the return spring 35 until the first inclined surface 322 contacts the wide inclined surface 333-2. After that, the first inclined surface slides along the wide inclined surface 333-2 of the inner shell until it reaches the bottom of the groove where the wide inclined surface 333-2 and the narrow inclined surface 333-1 intersect, and then stops moving upward to form a low-positioned positioning state. During this process, the button core 32 rotates slightly relative to the button cover 31 again, as shown in FIG. Figure 5 As shown, at this time, the return spring 35 is still in a compressed state, the first through hole 341 is aligned with the second through hole 361, and the liquid inlet pipe 2 is flowing. When the button switch 3 is pressed again, the button cover 31 moves downward, and the button cover serrations 312 fit the first inclined surface 322, driving the button core 32 to move downward until the tip of the first inclined surface 322 is separated from the tip of the narrow inclined surface 333-1. When the button is released, under the action of the return spring 35, the button core 32 moves upward, and the tip of the first inclined surface 322 moves upward along the inclined surface of the narrow inclined surface 333-1 until it slides into the straight slide groove 331 to form a high-position positioning state. During this process, the button core 32 rotates slightly relative to the button cover 31 again, as shown in FIG. Figure 4 As shown, under the action of the reset spring 35, the water blocking block 34 moves upward along with the button core 32. When it reaches the high positioning state, the first through hole 341 and the second through hole 361 are offset up and down to achieve the purpose of cutting off the flow of the liquid inlet pipe 2.

[0068] See also Figure 3 In a preferred embodiment, the liquid outlet pipe 4 and the second mounting port are integrally formed, and a filter screen 42 is fixedly mounted on the inner wall of the liquid outlet pipe 4. Specifically, the filter screen 42 is located at the liquid inlet end of the liquid outlet pipe 4, and can effectively filter sediment in the liquid medicine, further improving the practicality of the multi-channel stopcock.

[0069] See also Figure 1 In one embodiment, a connecting tube 41 is fixedly mounted on the outlet end of the liquid outlet tube 4. The connecting tube 41 is positioned outside the cavity, with the second mounting port and the liquid outlet tube 4 forming an integrated structure. The inner wall of the connecting tube 41 is provided with a connecting thread groove, which threads into the downstream infusion pump, facilitating installation of the infusion pump and enhancing the stability and sealing between the infusion pump and the octagonal connection box.

[0070] Continue to see Figure 3 In a preferred embodiment, a flow guide tube 5 is disposed within the chamber 1 of the octagonal connection box. One end of the flow guide tube 5 connects to the outlet of the inlet tube 2, corresponding one-to-one with the inlet tube 2. The other end converges with the inlet of the outlet tube 4, where it is connected. Liquid medicine enters the chamber through the inlet tube 2, flows through the flow guide tube 5, and converges with the outlet tube 4. It is filtered through the filter screen 42 before being delivered to the downstream infusion pump. This design reduces the weight of the chamber and prevents the catheter from accidentally slipping due to excessive liquid medicine in the chamber.

[0071] When the utility model is in use, first, each medicinal liquid is connected to the liquid inlet tube of the octagonal connecting box through the liquid outlet end of the infusion tube, and the liquid outlet end of the infusion tube is fixedly locked and connected to the liquid inlet tube by locking the connecting cover. Each medicinal liquid enters the chamber through the liquid inlet tube, converges at the liquid outlet tube through the guide tube, and after being filtered and precipitated at the filter mesh disk of the liquid outlet tube, enters the infusion device through the connecting tube and is then injected into the patient's body.

[0072] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A disposable medical sterile multi-channel stopcock, characterized in that: The invention comprises an octagonal connection box, the octagonal connection box comprising a chamber (1) and a first mounting port and a second mounting port communicating with the chamber (1), the number of the first mounting ports being 3-7, each of the first mounting ports being fixedly mounted with a liquid inlet pipe (2), the liquid inlet end of the liquid inlet pipe (2) being provided with a locking connection cover (21), the inner wall of the second mounting port being fixedly mounted with a liquid outlet pipe (4), a guide pipe (5) being provided in the chamber (1), one end of the guide pipe correspondingly connected to the liquid outlet end of the liquid inlet pipe (2), and the other end being communicated with the liquid inlet end of the liquid outlet pipe (4).

2. The disposable medical sterile multi-channel stopcock according to claim 1, characterized in that: The octagonal connection box is made of medical materials.

3. The disposable medical sterile multi-channel stopcock according to claim 1, characterized in that: The outer surface of the locking connection cover (21) is provided with a plurality of anti-slip convex strips (211), and the plurality of anti-slip convex strips (211) are arranged in a circumferential array on the outer surface of the locking connection cover (21).

4. The disposable medical sterile multi-channel stopcock according to claim 3, characterized in that: The material of the anti-slip convex strip (211) is anti-slip plastic.

5. The disposable medical sterile multi-channel stopcock according to claim 1, characterized in that: The liquid inlet end of the liquid inlet pipe (2) is provided with a plurality of notches and external threads, and the locking connection cover (21) is provided with matching internal threads.

6. The disposable medical sterile multi-channel stopcock according to claim 1, characterized in that: A button switch (3) corresponding to the liquid inlet pipe (2) is provided on the surface of the octagonal connection box.

7. The disposable medical sterile multi-channel stopcock according to claim 6, characterized in that: The button switch (3) comprises a button cover (31), a button core (32), an inner shell (33), a water blocking block (34), a return spring (35) and an outer shell (36) that cooperate with each other, the water blocking block (34) being provided with a first through hole (341), the outer shell (36) being provided with a second through hole (361), and the first through hole (341) and the second through hole (361) being coordinated with each other.

8. The disposable medical sterile multi-channel stopcock according to claim 1, characterized in that: A filter screen disc (42) is fixedly provided on the inner wall of the liquid outlet pipe (4).

9. The disposable medical sterile multi-channel stopcock according to claim 1, characterized in that: A connecting pipe (41) is fixedly mounted on the liquid outlet end of the liquid outlet pipe (4).

10. The disposable medical sterile multi-channel stopcock according to claim 9, characterized in that: The inner wall of the connecting pipe (41) is provided with a connecting thread groove.

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