Dialysis water sampling device

Abstract

The utility model provides a dialysis water sampling device and belongs to the field of medical supplies. The device comprises a three-way connector, a sampling bottle and a sealing ring, the three-way connector comprises a positive pressure connector, a bypass self-locking connector and a bypass matching plug, one end of the sampling bottle is provided with a sampling pipe matched with the positive pressure connector, the positive pressure connector is in threaded connection with the sampling pipe, and the sealing ring wraps the matching position of the positive pressure connector and the sampling pipe. A handle is arranged at the other end of the sampling bottle, a piston is arranged at one end of the handle and located inside the sampling bottle, the other end of the handle is located outside the sampling bottle, and the handle is configured to move in the length direction of the sampling bottle. By adopting the dialysis water sampling device provided by the embodiment of the utility model, the problem of low sealing performance in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical supplies field, especially a dialysis water sampling device. BACKGROUND

[0002] Dialysis water sampling device is a set of equipment or tools for collecting dialysis water, and dialysis water sampling refers to the action or process of detecting the quality of water used in dialysis. This process needs to ensure that the sample is not contaminated by the outside world, so as to accurately detect microorganisms, endotoxins and other potential pollutants in water quality. The purpose of dialysis water sampling is to monitor and ensure that the quality of dialysis water meets medical standards, and to prevent acute and chronic complications caused by water quality problems and even life-threatening situations.

[0003] The water sampling device in the prior art usually uses a separate syringe to directly access the docking port of the dialysis pipeline to extract dialysate. When the syringe is inserted and pulled out, it is easy to bring out the dialysate, resulting in dialysate spilling. During the process of inserting the syringe into the dialysis pipeline, the sealing performance is low, and the sampling sample is easily contaminated.

[0004] The water sampling device in the prior art has low sealing performance. SUMMARY

[0005] The utility model discloses a dialysis water sampling device, which can solve the problem of low sealing performance in the prior art. The technical solution is as follows:

[0006] A dialysis water sampling device, comprising: a tee joint, a sampling bottle and a sealing ring,

[0007] The tee joint comprises a positive pressure joint, a bypass self-locking joint and a bypass matching plug, one end of the sampling bottle is provided with a sampling tube matched with the positive pressure joint, the positive pressure joint and the sampling tube are connected by threads, the sealing ring is wrapped around the matching part of the positive pressure joint and the sampling tube, the other end of the sampling bottle is provided with a handle, one end of the handle is provided with a piston, the piston is located inside the sampling bottle, the other end of the handle is located outside the sampling bottle, and the handle is configured to move along the length direction of the sampling bottle.

[0008] Optionally, one end of the sampling tube close to the positive pressure joint is provided with a fixing ring, and the fixing ring is fixedly arranged on the sampling tube and abuts against the sealing ring.

[0009] Optionally, the fixed ring is fixedly provided with a sliding column near one side of the positive pressure connector, the other end of the sliding column is provided with a spring, the other end of the spring is provided with a sleeve, the sleeve is sleeved outside the spring, the sealing ring is fixedly provided with a compression ring near one end of the sampling tube, the compression ring is provided with an annular groove near one side of the fixed ring, the sleeve is provided with a roller near one side of the annular groove, and the roller is slidably arranged in the annular groove.

[0010] Optionally, the positive pressure connector is provided with a fixed sleeve near one end of the sampling tube, the fixed sleeve is wrapped outside the sealing ring, the fixed ring and the compression ring, and the fixed ring and the compression ring are slidably arranged in the fixed sleeve.

[0011] Optionally, the sampling bottle is provided with a fixed plate near one end of the handle.

[0012] Optionally, the bypass self-locking connector is provided with a plurality of steel balls, and the plurality of steel balls are uniformly distributed along the circumference of the bypass self-locking connector.

[0013] Optionally, a plug is further included, and the plug is matched with the positive pressure connector.

[0014] Optionally, a plurality of tee joints are provided, and the bypass self-locking connectors and the bypass matching plugs of the plurality of tee joints are different.

[0015] Optionally, a scale line is arranged on the sampling bottle, and the scale line is uniformly distributed along the length direction of the sampling bottle.

[0016] Optionally, a water stop clamp is sleeved on the middle part of the sampling tube.

[0017] The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:

[0018] The water sampling device for dialysis provided by the embodiment of the utility model connects the bypass self-locking connector with the dialysis machine in bypass, connects the bypass matching plug with the dialysis machine, makes the dialysate bypass the dialysis machine and reach the dialysis machine, moves the piston by pulling the handle, generates negative pressure in the sampling bottle, moves the dialysate to the sampling bottle through the sampling tube under the action of pressure, adopts the threaded connection between the positive pressure connector and the sampling tube, provides the sealing ring at the threaded connection, increases the sealing performance between the positive pressure connector and the sampling tube, makes the collected dialysate completely enter the sampling bottle, and effectively solves the problem of low sealing performance in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0020] Figure 1 is the overall structure schematic diagram of the device provided by the embodiments of the present application;

[0021] Figure 2 is the internal structure schematic diagram of the sampling bottle provided by the embodiments of the present application;

[0022] Figure 3 is the cooperation structure schematic diagram of the positive pressure connector and the sampling tube provided by the embodiments of the present application;

[0023] Figure 4 is the cooperation structure schematic diagram of the fixing ring and the compression ring provided by the embodiments of the present application;

[0024] Figure 5 is the cooperation structure schematic diagram of the positive pressure connector and the plug provided by the embodiments of the present application; Figure 5 is the enlarged schematic diagram of A in the cooperation structure schematic diagram of the positive pressure connector and the plug provided by the embodiments of the present application;

[0025] Figure 6 is the cooperation structure schematic diagram of the positive pressure connector and the plug provided by the embodiments of the present application.

[0026] In the figure: 1-three-way connector; 11-positive pressure connector; 12-bypass self-locking connector; 121-steel ball; 13-bypass matching plug; 2-sampling bottle; 21-sampling tube; 22-fixing plate; 23-scale line; 24-water stop clamp; 3-handle; 31-piston; 4-sealing ring; 5-fixing ring; 51-sliding column; 52-spring; 53-sleeve; 54-roller; 6-compression ring; 61-annular groove; 7-fixing sleeve; 8-plug. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the embodiments of the present application in combination with the drawings.

[0028] Figure 1 is the overall structure schematic diagram of the device provided by the embodiments of the present application; Figure 2 is the internal structure schematic diagram of the sampling bottle provided by the embodiments of the present application; Figure 3 is the cooperation structure schematic diagram of the positive pressure connector and the sampling tube provided by the embodiments of the present application; Figure 4 is the cooperation structure schematic diagram of the fixing ring and the compression ring provided by the embodiments of the present application; Figure 5 is the cooperation structure schematic diagram of the positive pressure connector and the plug provided by the embodiments of the present application;Figure 5 enlarged view of A in FIG. Figure 6 is a schematic view of a positive pressure connector and plug cooperation structure provided by the embodiment of the present application. Figures 1 to 6 The water sampling device for dialysis comprises a three-way joint 1, a sampling bottle 2 and a sealing ring 4, the three-way joint 1 comprises a positive pressure connector 11, a bypass self-locking connector 12 and a bypass matching plug 13, one end of the sampling bottle 2 is provided with a sampling pipe 21 matched with the positive pressure connector 11, the positive pressure connector 11 is threadedly connected with the sampling pipe 21, the sealing ring 4 is wrapped at the cooperation position of the positive pressure connector 11 and the sampling pipe 21, the other end of the sampling bottle 2 is provided with a handle 3, one end of the handle 3 is provided with a piston 31, the piston 31 is located in the inside of the sampling bottle 2, the other end of the handle 3 is located outside the sampling bottle 2, and the handle 3 is configured to move along the length direction of the sampling bottle 2.

[0029] Exemplarily, in the embodiment of the present application, the bypass self-locking connector 12 is connected with the bypass of the dialysis machine, the bypass matching plug 13 is connected with the dialysis machine, and the dialysate is bypassed from the dialysis machine to the dialysis machine during the dialysis process. The sampling bottle 2 is a high-temperature and high-pressure resistant sealed sterile container, one end of the sealing ring 4 is fixedly arranged on the positive pressure connector 11, and then the positive pressure connector 11 and the sampling pipe 21 are threadedly connected together. During the process of tightening the thread, the end of the sampling pipe 21 moves to the inside of the sealing ring 4, so that the sealing ring 4 covers the cooperation position of the positive pressure connector 11 and the sampling pipe 21. As shown in FIG. Figure 3 The sealing ring 4 is a hollow ring structure, one end of the sealing ring 4 is attached to the positive pressure connector 11, the other end of the sealing ring 4 is attached to the sampling pipe 21, the hollow part of the sealing ring 4 is completely sealed, the cooperation position of the positive pressure connector 11 and the sampling pipe 21 is located in the hollow part of the sealing ring 4, the sealing ring 4 seals the joint of the positive pressure connector 11 and the sampling pipe 21, and the sealing performance of the present water sampling device for dialysis is improved. By pulling the handle 3, the piston 31 moves, so that the negative pressure is generated in the inside of the sampling bottle 2, the dialysate moves to the inside of the sampling bottle 2 through the sampling pipe 21 under the action of the pressure, and the sampling of the dialysate is completed.

[0030] The water sampling device for dialysis provided by the embodiment of the present application connects the bypass self-locking connector 12 with the bypass of the dialysis machine, connects the bypass matching plug 13 with the dialysis machine, so that the dialysate is bypassed from the dialysis machine to the dialysis machine, and by pulling the handle 3, the piston 31 moves, so that the negative pressure is generated in the inside of the sampling bottle, the dialysate moves to the inside of the sampling bottle 2 through the sampling pipe 21 under the action of the pressure. Since the positive pressure connector 11 and the sampling pipe 21 are threadedly connected, the sealing ring 4 is arranged at the threadedly connected position, the sealing performance between the positive pressure connector 11 and the sampling pipe 21 is improved, the collected dialysate can completely enter the sampling bottle 2, and the problem of low sealing performance in the prior art can be effectively solved.

[0031] Optionally, the sampling pipe 21 is provided with a fixing ring 5 near one end of the positive pressure connector 11, the fixing ring 5 is fixedly sleeved on the sampling pipe 21 and abuts against the sealing ring 4.

[0032] Exemplarily, in the embodiment of the utility model, the fixing ring 5 is fixedly arranged outside the sampling pipe 21, when the positive pressure connector 11 and the sampling pipe 21 are screwed, the sampling pipe 21 carries the fixing ring 5 to approach the sealing ring 4 and extrude the sealing ring 4, through extrusion, the gap between the sealing ring 4 and the sampling pipe 21 can be completely filled, at the same time, the air in the hollow part of the sealing ring 4 is discharged through the gap in the extrusion process, so that the pressure in the hollow part of the sealing ring 4 is further reduced, under the action of external atmospheric pressure, the sealing ring 4 is more closely attached to the fitting part of the positive pressure connector 11 and the sampling pipe 21, so that the sealing property of the water sampling device for dialysis is further improved.

[0033] Optionally, the fixing ring 5 is fixedly provided with a sliding column 51 near one side of the positive pressure connector 11, the other end of the sliding column 51 is provided with a spring 52, the other end of the spring 52 is provided with a sleeve 53, the sleeve 53 is sleeved outside the spring 52, the sealing ring 4 is fixedly provided with a pressing ring 6 near one end of the sampling pipe 21, the side, close to the fixing ring 5, of the pressing ring 6 is provided with an annular groove 61, the side, close to the annular groove 61, of the sleeve 53 is provided with a roller 54, the roller 54 is slidably arranged in the annular groove 61.

[0034] Exemplarily, in the embodiment of the utility model, through the arrangement of the sliding column 51, the spring 52, the sleeve 53 and the roller 54, when the positive pressure connector 11 and the sampling pipe 21 are screwed, the fixing ring 5 carries the sliding column 51 to approach the sealing ring 4, so that the spring 52 also approaches the sealing ring 4, at this time, the spring 52 is compressed, under the action of the elastic force, the pressing ring 6 is compressed to the sealing ring 4, so that the sealing ring 4 is compressed, so that the sealing property of the water sampling device for dialysis is further improved, the arrangement of the roller 54 and the annular groove 61 can make the screwing of the positive pressure connector 11 and the sampling pipe 21 more smooth, in the process of tightening the thread, the sealing ring 4 is more uniformly compressed, so that the stability of the device is improved.

[0035] Optionally, the positive pressure connector 11 is provided with a fixing sleeve 7 near one end of the sampling pipe 21, the fixing sleeve 7 wraps outside the sealing ring 4, the fixing ring 5 and the pressing ring 6, and the fixing ring 5 and the pressing ring 6 are slidably arranged in the inside of the fixing sleeve 7.

[0036] Exemplarily, in the embodiment of the utility model, through setting fixed sleeve 7, when sealing ring 4 is compressed, the outside of sealing ring 4 is close to the inner wall of fixed sleeve 7, so that fixed sleeve 7 provides sealing ring 4 with an inward fastening force, thereby further improving the sealing property of the water sampling device for dialysis.

[0037] Optionally, the sampling bottle 2 is provided with a fixed plate 22 at one end close to the handle 3.

[0038] Exemplarily, in the embodiment of the utility model, through setting the fixed plate 22, when the handle 3 is compressed, the operator does not need to hold the sampling tube 2 to provide a reaction force, but can hold the fixed plate 22 to provide a reaction force, thereby improving the operation convenience of the water sampling device for dialysis.

[0039] Optionally, the bypass self-locking connector 12 is provided with a plurality of steel balls 121, and the plurality of steel balls 121 are uniformly distributed along the circumference of the bypass self-locking connector 12.

[0040] Exemplarily, in the embodiment of the utility model, the bypass self-locking connector 12 is provided with a plurality of steel balls 121, and after the bypass self-locking connector 12 is connected with the bypass of the dialysis machine, the bypass self-locking connector 12 can be locked with the bypass of the dialysis machine through the steel balls 121, so that the dialysis process is more stable, and the sealing property of the water sampling device for dialysis is further improved.

[0041] Optionally, it further includes a plug 8 matched with the positive pressure connector 11.

[0042] Exemplarily, in the embodiment of the utility model, the plug 8 is also threadedly connected with the positive pressure connector 11. The extraction and analysis of dialysate can be operated once a month, and when the dialysate is not needed to be extracted or after the extraction of the dialysate, the sampling tube 21 is separated from the positive pressure connector 11, and then the plug 8 is matched with the positive pressure connector 11, so that the dialysis machine can still work normally, and when the dialysate needs to be extracted, the plug 8 is separated from the positive pressure connector 11, and the sampling tube 21 is matched with the positive pressure connector 11. Through the setting of the plug 8, the practicability of the water sampling device for dialysis is improved.

[0043] Optionally, a plurality of tee connectors 1 are provided, and the bypass self-locking connectors 12 and the bypass matching plugs 13 of the plurality of tee connectors 1 are different.

[0044] Exemplarily, in the embodiment of the utility model, through setting multiple three-way joints 1, when the device is applied to different dialysis machines, different bypass self-locking joints 12 and bypass matching plugs 13 are connected with different models of dialysis machines, while the positive pressure joint 11 is unchanged, the sampling tube 21 and the sampling bottle 2 are unchanged, in batch generation, only one model of sampling bottle 2 is produced and matched with multiple different models of three-way joints 1, thereby improving the universality of the water sampling device for dialysis.

[0045] Optionally, the sampling bottle 2 is provided with a scale line 23, and the scale line 23 is uniformly distributed along the length direction of the sampling bottle 2.

[0046] Exemplarily, in the embodiment of the utility model, the sampling bottle 2 is made of transparent material, the scale line 23 is set as 0-70ml, 2ml per small grid and 10ml per large grid, through setting the scale line 23, the operator can extract the appropriate capacity of dialysate according to the requirement, thereby improving the operation convenience of the water sampling device for dialysis.

[0047] Optionally, the sampling tube 21 is sleeved with a water stop clamp 24 in the middle.

[0048] Exemplarily, in the embodiment of the utility model, after the sampling of the sampling bottle 2 is completed, before the sampling bottle 2 is separated from the three-way joint 1, the sampling tube 21 can be clamped and sealed through setting the water stop clamp 24, so that the extracted dialysate is completely sealed in the sampling tube 2, through setting the water stop clamp 24, the sealing performance of the water sampling device for dialysis is further improved.

[0049] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms "first", "second", and similar terms used in the utility model patent application specification and claims do not indicate any order, number, or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar terms do not indicate a quantity limit, but indicate the existence of at least one. "Include" or "contain" and similar terms mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right", and the like are only used to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] The above merely describes optional embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for sampling dialysis water, characterized in that The utility model relates to a three -way joint (1), sampling bottle (2) and seal ring (4), The three -way joint (1) includes positive pressure joint (11), bypass self -locking joint (12) and bypass matching plug (13), one end of sampling bottle (2) is provided with sampling pipe (21) matched with positive pressure joint (11), positive pressure joint (11) is connected with sampling pipe (21) with thread, seal ring (4) is wrapped in the cooperation place of positive pressure joint (11) and sampling pipe (21), the other end of sampling bottle (2) is provided with handle (3), one end of handle (3) is provided with piston (31), piston (31) is located in the inside of sampling bottle (2), the other end of handle (3) is located in the outside of sampling bottle (2), handle (3) is configured to move along the length direction of sampling bottle (2). The end of the sampling pipe (21) close to the positive pressure joint (11) is provided with a fixing ring (5), the fixing ring (5) is fixedly sleeved on the sampling pipe (21) and abuts against the sealing ring (4).

2. The water sampling device for dialysis according to claim 1, wherein The side of the fixing ring (5) close to the positive pressure joint (11) is fixedly provided with a sliding column (51), the other end of the sliding column (51) is provided with a spring (52), the other end of the spring (52) is provided with a sleeve (53), the sleeve (53) is sleeved on the outside of the spring (52), the end of the sealing ring (4) close to the sampling pipe (21) is fixedly provided with a compression ring (6), the compression ring (6) is provided with an annular groove (61) on the side close to the fixing ring (5), the side of the sleeve (53) close to the annular groove (61) is provided with a roller (54), the roller (54) is slidably arranged in the annular groove (61).

3. A water sampling device for dialysis according to claim 2, characterized in that The end of the positive pressure joint (11) close to the sampling pipe (21) is provided with a fixing sleeve (7), the fixing sleeve (7) is wrapped on the outside of the sealing ring (4), the fixing ring (5) and the compression ring (6), and the fixing ring (5) and the compression ring (6) are slidably arranged in the inside of the fixing sleeve (7).

4. The water sampling device for dialysis according to claim 3, wherein The end of the sampling bottle (2) close to the handle (3) is provided with a fixing plate (22).

5. The water sampling device for dialysis according to claim 1, wherein The bypass self-locking joint (12) is provided with a plurality of steel balls (121), and the plurality of steel balls (121) are uniformly distributed along the circumference of the bypass self-locking joint (12).

6. The water sampling device for dialysis according to claim 1, wherein A plug (8) is further included, and the plug (8) is matched with the positive pressure joint (11).

7. The water sampling device for dialysis according to claim 1, wherein A plurality of three-way joints (1) are provided, and the bypass self-locking joints (12) and the bypass matching plugs (13) of the plurality of three-way joints (1) are different.

8. The water sampling device for dialysis according to claim 1, wherein A scale line (23) is arranged on the sampling bottle (2), and the scale line (23) is uniformly distributed along the length direction of the sampling bottle (2).

9. The water sampling device for dialysis according to claim 1, wherein A water stop clamp (24) is sleeved on the sampling pipe (21).

10. The water sampling device for dialysis according to claim 1, wherein ​

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