CN209827729U - Rapid sampling device for hemodialysis instrument - Google Patents
Rapid sampling device for hemodialysis instrument Download PDFInfo
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- CN209827729U CN209827729U CN201920194933.7U CN201920194933U CN209827729U CN 209827729 U CN209827729 U CN 209827729U CN 201920194933 U CN201920194933 U CN 201920194933U CN 209827729 U CN209827729 U CN 209827729U
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a quick sampling device for a hemodialysis instrument, which comprises a three-phase communicating pipe, a check valve and a sample storage chamber, wherein the check valve comprises a valve body, a valve core, an adjusting knob, a sealing sleeve and a pressing sleeve, the adjusting knob is horizontally arranged at the lower part of the valve body in a vertically movable manner, a vertically upward ejector rod is arranged at the middle part of the bottom end of the adjusting knob, the sealing sleeve is detachably sleeved at the middle part of the valve body, the pressing sleeve is detachably sleeved at the upper part of the valve body, the bottom of the pressing sleeve is abutted against the top end of the sealing sleeve, the device realizes the operation of collecting dialysate samples only by manually rotating the adjusting knob, has simple and clear operation and convenient disassembly, can accurately take out required samples, has convenient installation and can take out and store dialysate samples for multiple times at low temperature, and, the efficiency of staff's sample has been improved.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically, relate to a swift sampling device for hemodialysis appearance.
Background
At present, a hemodialyzer sampler is a dialysate sampling device for a hemodialyzer, and regarding microbiological test of water for dialysis, a sample should be collected at a connection of a dialysis device and a water supply circuit, a sampling point should be at the end of the water supply circuit or at an inlet of a mixing chamber, the sample should be detected within 4 hours after collection, or immediately refrigerated and tested within 24 hours after collection, the total bacterial count (standard petri dish count) should be obtained using conventional microbiological testing methods (pour plate, smear plate, membrane filtration), membrane filtration being the preferred testing method, but does not accept the inoculation loop method, the prior art has the problem that the patient can not conveniently sample the dialysate in the dialysis process, in addition, the problems of difficult storage of samples and complicated disassembly and assembly of sampling equipment exist in the process of sampling for multiple times, so that a rapid sampling device of the hemodialysis machine is needed to be designed.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a swift sampling device for hemodialysis appearance.
The utility model discloses a quick sampling device for a hemodialysis instrument, which comprises a three-phase communicating pipe, a check valve and a sample storage chamber, wherein the check valve comprises a valve body, a valve core, an adjusting knob, a sealing sleeve and a pressing sleeve, the valve body is vertically arranged and has a hollow cylinder structure, a first clapboard is horizontally arranged at the middle part in the valve body, a first through hole is arranged at the central part of the first clapboard, an O-shaped sealing seat is horizontally and fixedly arranged at the inner side of the valve body close to the lower end, the valve core is vertically and reciprocally arranged between the first clapboard and the O-shaped sealing seat, the valve core has a hollow cylinder structure, a piston is horizontally and fixedly arranged at the bottom end of the valve core, two second through holes are arranged on the outer cylindrical wall of the valve core, the adjusting knob is horizontally and vertically arranged at the lower part of the valve body, a vertically upward mandril is arranged at the middle part of, the detachable sleeve of seal cover is established at the valve body middle part, supports and presses the cover detachable to establish at valve body upper portion and its bottom and the conflict of seal cover top.
Preferably, the valve core comprises a spring, the spring is vertically arranged inside the valve core, the upper end of the spring is fixedly connected with the first partition plate, the bottom end of the spring is fixedly connected with the piston, and the diameter of the piston is larger than the inner diameter of the O-shaped sealing seat.
Preferably, the upper portion of the inner side of the adjusting knob is in threaded connection with the lower end of the outer side of the valve body, the bottom end of the adjusting knob is vertically and downwardly provided with a sampling port, the outer side wall of the sampling port is of a threaded structure, an anti-skidding hand wheel is horizontally and fixedly arranged on the outer side surface of the lower end of the adjusting knob, and two O-shaped sealing rings are horizontally arranged on the outer side surface of the upper end of the.
Preferably, the inner diameter of the bottom end of the sealing sleeve is larger than the outer diameter of the adjusting knob and smaller than the outer diameters of the two O-shaped sealing rings, an annular abutting plate is horizontally and fixedly arranged on the outer cylindrical wall of the valve body, an O-shaped rubber gasket is horizontally arranged at the upper end of the annular abutting plate, and the inner side of the top end of the sealing sleeve is in abutting connection with the O-shaped rubber gasket.
Preferably, support and press and to be provided with three spacing on the inboard cylinder wall of cover vertical even interval, valve body upper portion evenly is provided with and inserts three spacing grooves of establishing with the cooperation of three spacing, and three spacing groove bottoms of group all are provided with the fixture block, all are provided with the draw-in groove with three fixture block cooperation joint on three spacing.
Preferably, the top end of the first partition plate and the bottom end of the inner side of the adjusting knob are both provided with concave arc surfaces.
Preferably, the three-phase communicating pipe comprises a liquid inlet, a liquid outlet and a sample outlet, the upper end of the valve body is of a threaded structure, the inner side of the sample outlet is of an internal thread structure, and the upper end of the valve body is connected with the sample outlet through a hose or a threaded connection.
Preferably, the sample preservation chamber includes insulation box, sample collection box and semiconductor refrigeration piece, and sample collection box level sets up in the insulation box, and the semiconductor refrigeration piece sets up between sample collection box and insulation box, and the insulation box top is provided with the feed inlet, the feed inlet passes through the hose connection with check valve bottom sample connection.
Has the advantages that: this device is only through artifical rotatory adjust knob to the realization is to the operation of dislysate sample collection, and the easy operation of this device is clear, and easy dismounting, the sample that takes out needs that can be accurate, this device simple to operate and can sample many times and the low temperature preserves the dislysate sample, makes staff's sample operation convenient and fast more, has improved the efficiency that the staff sampled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a front view of the check valve of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is an exploded view of the check valve of the present invention;
fig. 5 is a bottom view of the adjusting knob of the present invention;
fig. 6 is a front view of the sample retention chamber of the present invention;
description of reference numerals: the three-phase communicating pipe 1, the check valve 2, the first through hole 3, the valve body 4, the valve core 5, the adjusting knob 6, the sealing sleeve 7, the abutting sleeve 8, the O-shaped sealing seat 9, the piston 10, the second through hole 11, the ejector rod 12, the spring 13, the sampling port 14, the O-shaped sealing ring 15, the anti-skidding hand wheel 16, the O-shaped rubber gasket 17, the limiting strip 18, the limiting groove 19, the clamping groove 20, the liquid inlet 21, the liquid outlet 22, the sample outlet 23, the heat preservation box body 24, the sample collection box 25, the semiconductor refrigeration piece 26, the feed inlet 27 and the third through hole 28.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 5, a rapid sampling device for a hemodialysis instrument comprises a three-phase communicating pipe 1, a check valve 2 and a sample storage chamber, wherein the check valve 2 comprises a valve body 4, a valve core 5, an adjusting knob 6, a sealing sleeve 7 and a pressing sleeve 8, the valve body 4 is vertically arranged and is of a hollow cylindrical structure, a first partition plate is horizontally arranged in the middle of the inside of the valve body 4, a first through hole 3 is arranged at the center of the first partition plate, an O-shaped sealing seat 9 is horizontally and fixedly arranged at the inner side of the valve body 4 close to the lower end, the valve core 5 is vertically and reciprocally arranged between the first partition plate and the O-shaped sealing seat 9, the valve core 5 is of a hollow cylindrical structure, a piston 10 is horizontally and fixedly arranged at the bottom end of the valve core 5, two second through holes 11 are arranged on the outer cylindrical wall of the valve core 5, the adjusting knob 6 is horizontally and vertically arranged at the lower part, four third through holes 28 are evenly formed in the bottom end of the adjusting knob 6 along the outer side of the bottom end of the ejector rod 12, the sealing sleeve 7 is detachably sleeved at the middle of the valve body 4, the pressing sleeve 8 is detachably sleeved on the upper portion of the valve body 4, and the bottom of the pressing sleeve is abutted to the top end of the sealing sleeve 7.
The valve core 5 comprises a spring 13, the spring 13 is vertically arranged inside the valve core 5, the upper end of the spring 13 is fixedly connected with the first partition plate, the bottom end of the spring 13 is fixedly connected with the piston 10, and the diameter of the piston 10 is larger than the inner diameter of the O-shaped sealing seat 9. Spring 13 relies on self elasticity to promote whole case 5 downwards to make piston 10 on the case 5 contradict on O type seal receptacle 9, the diameter of piston 10 is greater than the internal diameter of O type seal receptacle 9 and makes piston 10 can be complete the dead seal post O type sealing washer 15 make its the weeping circumstances can not appear.
The upper portion of the inner side of the adjusting knob 6 is in threaded connection with the lower end of the outer side of the valve body 4, a sampling port 14 is vertically and downwardly arranged at the bottom end of the adjusting knob 6, a threaded structure is arranged on the outer side wall of the sampling port 14, an anti-skid hand wheel 16 is horizontally and fixedly arranged on the outer side surface of the lower end of the adjusting knob 6, and two O-shaped sealing rings 15 are horizontally arranged on the outer side surface of the upper end of the adjusting. When the sampling operation is completed, the worker rotates the adjusting knob 6 counterclockwise, the adjusting knob 6 starts to move downward, the ejector rod 12 at the bottom end of the adjusting knob moves downward, the valve core 5 also starts to move downward under the elastic force of the spring 13, the piston 10 on the valve core 5 abuts against the O-shaped sealing seat 9, the valve core 5 stops moving downward, the ejector rod 12 is separated from the piston 10, the dialysis liquid stops flowing out, the whole sampling process is finished, and the anti-skid hand wheel 16 on the adjusting knob 6 is convenient for the staff to rotate the adjusting knob 6.
The internal diameter of 7 bottom ends of seal cover is greater than adjust knob 6 external diameters and is less than the external diameter of two O type sealing washer 15, the fixed annular of being provided with is supported the board on the outer cylinder jade wall of valve body 4 level, and annular is supported the board upper end level and is provided with O type cushion 17, seal cover 7 top inboard is contradicted with O type cushion 17 and is connected. The O-shaped sealing ring 15 is used for sealing a gap between the adjusting knob 6 and the sealing sleeve 7 to prevent dialysate from leaking, and the O-shaped rubber gasket 17 is used for sealing a gap between the sealing sleeve 7 and the valve body 4 to prevent the dialysate from leaking from the gap between the valve body 4 and the sealing sleeve 7.
Support and press 8 inboard cylinder walls of cover and go up vertical even intervals and be provided with three spacing 18, 4 upper portions of valve body evenly are provided with and insert three spacing grooves 19 of establishing with the cooperation of three spacing 18, and three spacing groove 19 bottoms of group all are provided with the fixture block, all are provided with the draw-in groove 20 with three fixture block cooperation joint on three spacing 18. When the sealing sleeve 7 is sleeved on the valve body 4, the abutting sleeve 8 is sleeved into the valve body 4 along the limiting groove 19 from top to bottom, at the moment, the limiting strip 18 is clamped with the limiting groove 19, when the limiting strip 18 is inserted into the bottom end of the limiting groove 19, the clamping groove 20 on the limiting strip 18 is clamped by the clamping block on the limiting groove 19, so that the abutting sleeve 8 is fixed on the valve body 4, the bottom end of the abutting sleeve 8 abuts against the sealing sleeve 7 and does not move upwards, and the sealing sleeve 7 is completely sealed.
The top end of the first partition plate and the bottom end of the inner side of the adjusting knob 6 are both provided with concave cambered surfaces. The concave cambered surface is arranged to ensure that the dialysate can not remain in the valve body 4 when the dialysate is sampled and discharged.
The three-phase communicating pipe 1 comprises a liquid inlet 21, a liquid outlet 22 and a sample outlet 23, the upper end of the valve body 4 is of a threaded structure, the inner side of the sample outlet 23 is of an internal thread structure, and the upper end of the valve body 4 is connected with the sample outlet 23 through a hose or a threaded connection. When needs are taken a sample to the dislysate, can pass through the hose connection with play appearance mouth 23 and valve body 4 upper end, perhaps directly with valve body 4 and play appearance mouth 23 threaded connection for this equipment can carry out the sample operation under space and the environment of difference.
The sample preservation chamber comprises a heat preservation box body 24, a sample collection box 25 and a semiconductor refrigeration piece 26, wherein the sample collection box 25 is horizontally arranged in the heat preservation box body 24, the semiconductor refrigeration piece 26 is arranged between the sample collection box 25 and the heat preservation box body 24, a feed inlet 27 is formed in the top end of the heat preservation box body 24, and the feed inlet 27 is connected with a sampling port 14 at the bottom end of the check valve 2 through a hose. When the dialysate is taken out, the detection is not needed temporarily, the sampling port 14 at the bottom end of the one-way valve 2 can be directly connected with the feeding port 27 on the sample storage chamber through a hose, and the dialysate sample is directly stored in the sample collection box 25 for storage, so that the later detection is facilitated.
The working principle is as follows: when a worker needs to sample and detect the dialysate, two ends of the three-phase communication pipe 1 are installed at a water supply loop of the dialysate, then the top end of the check valve 2 is connected to a sample outlet 23 of the three-phase communication pipe 1 through a hose or a thread, the dialyzer is opened at the moment, the three-phase communication valve is filled with the dialysate in the process, the dialysate is discharged downwards through the sample outlet 23 on the three-phase communication valve to enable the upper half of the valve body 4 to be filled with the dialysate, a sampling port 14 at the bottom end of the check valve 2 is connected to a sample collection box 25 through a hose, the whole preparation work is finished, the worker rotates the rotary adjusting knob 6 clockwise at the moment, the adjusting knob 6 starts to move upwards, the ejector rod 12 at the bottom end of the adjusting knob also moves upwards at the same time, when the top end of the ejector rod 12 contacts with the piston 10 at the bottom end of the valve body 4, the ejector rod 12 jacks up the piston 10, at the moment, a gap is formed between the piston 10 and the O-shaped seal seat 9, dialysate flows into the lower half part of the valve body 4 from the upper half part of the valve body 4 through the gap formed between the piston 10 and the O-shaped seal seat 9, at the moment, the dialysate completely flows out from the valve body 4 through the four third through holes 28 on the ground end of the adjusting knob 6, the dialysate flows into the sample collection box through the hose, when a proper amount of dialysate is collected in the sample collection box, a worker rotates the adjusting knob 6 anticlockwise, at the moment, the adjusting knob 6 starts to move downwards, at the same time, the ejector rod 12 at the bottom end of the adjusting knob simultaneously moves downwards, at the same time, the valve core 5 also starts to move downwards under the elastic force of the spring 13, when the piston 10 on the valve core 5 abuts against the O-shaped seal seat 9, the valve core 5 stops moving downwards, at the moment, the ejector rod 12 is separated from the piston 10, the dialysate stops flowing out, at the moment, at the, when the sample does not need to be detected immediately, the sample collecting box 25 is directly placed into the heat preservation box body 24 for cold preservation, so that later-stage detection is facilitated.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. A swift sampling device for hemodialysis appearance which characterized in that: the device comprises a three-phase communicating pipe (1), a one-way valve (2) and a sample storage chamber, wherein the one-way valve (2) comprises a valve body (4), a valve core (5), an adjusting knob (6), a sealing sleeve (7) and a pressing sleeve (8), the valve body (4) is vertically arranged and is of a hollow cylinder structure, a first partition plate is horizontally arranged in the middle of the interior of the valve body (4), a first through hole (3) is formed in the center of the first partition plate, an O-shaped sealing seat (9) is horizontally and fixedly arranged on the inner side of the valve body (4) close to the lower end of the valve body, the valve core (5) is vertically and reciprocally arranged between the first partition plate and the O-shaped sealing seat (9), the valve core (5) is of a hollow cylinder structure, a piston (10) is horizontally and fixedly arranged at the bottom end of the valve core (5), two second through holes (11) are formed in the outer cylindrical, the middle part of the bottom end of the adjusting knob (6) is provided with a vertical upward ejector rod (12), four third through holes (28) are uniformly formed in the bottom end of the adjusting knob (6) along the outer side of the bottom end of the ejector rod (12), the sealing sleeve (7) is detachably sleeved on the middle part of the valve body (4), and the abutting sleeve (8) is detachably sleeved on the upper part of the valve body (4) and the bottom of the abutting against the top end of the sealing sleeve (7).
2. A rapid sampling device for a hemodialysis machine, according to claim 1, wherein: the valve core (5) comprises a spring (13), the spring (13) is vertically arranged inside the valve core (5), the upper end of the spring (13) is fixedly connected with the first partition plate, the bottom end of the spring (13) is fixedly connected with the piston (10), and the diameter of the piston (10) is larger than the inner diameter of the O-shaped sealing seat (9).
3. A rapid sampling device for a hemodialysis machine, according to claim 1, wherein: the upper portion of the inner side of the adjusting knob (6) is in threaded connection with the lower end of the outer side of the valve body (4), a sampling port (14) is vertically and downwards arranged at the bottom end of the adjusting knob (6), a threaded structure is arranged on the outer side wall of the sampling port (14), an anti-skid hand wheel (16) is horizontally and fixedly arranged on the outer side surface of the lower end of the adjusting knob (6), and two O-shaped sealing rings (15) are horizontally arranged on the outer side surface of the upper end of the adjusting knob (.
4. A rapid sampling device for a hemodialysis machine according to claim 3, wherein: the inner diameter of the bottom end of the sealing sleeve (7) is larger than the outer diameter of the adjusting knob (6) and smaller than the outer diameters of the two O-shaped sealing rings (15), an annular abutting plate is horizontally and fixedly arranged on the outer cylindrical wall of the valve body (4), an O-shaped rubber gasket (17) is horizontally arranged at the upper end of the annular abutting plate, and the inner side of the top end of the sealing sleeve (7) is in abutting connection with the O-shaped rubber gasket (17).
5. The rapid sampling device for a hemodialysis machine according to claim 4, wherein: support and press vertical even interval on the cover (8) inboard cylinder jade and be provided with three spacing (18), valve body (4) upper portion evenly is provided with and inserts three spacing groove (19) of establishing of three groups with three spacing (18) cooperation, and three spacing groove (19) bottoms of group all are provided with the fixture block, all are provided with draw-in groove (20) with three fixture block cooperation joint on three spacing (18).
6. A rapid sampling device for a hemodialysis machine, according to claim 1, wherein: the top end of the first partition plate and the bottom end of the inner side of the adjusting knob (6) are both arranged in a concave arc surface.
7. A rapid sampling device for a hemodialysis machine, according to claim 1, wherein: three-phase communicating pipe (1) includes inlet (21), liquid outlet (22) and appearance mouth (23), and valve body (4) upper end is helicitic texture, and appearance mouth (23) inboard is the internal thread structure, and valve body (4) upper end passes through hose connection or threaded connection with appearance mouth (23).
8. A rapid sampling device for a hemodialysis machine according to claim 7, wherein: the sample preservation chamber comprises a heat preservation box body (24), a sample collection box (25) and a semiconductor refrigeration piece (26), wherein the sample collection box (25) is horizontally arranged in the heat preservation box body (24), the semiconductor refrigeration piece (26) is arranged between the sample collection box (25) and the heat preservation box body (24), a feed inlet (27) is formed in the top end of the heat preservation box body (24), and the feed inlet (27) is connected with a sampling port (14) in the bottom end of the one-way valve (2) through a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194933.7U CN209827729U (en) | 2019-02-13 | 2019-02-13 | Rapid sampling device for hemodialysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194933.7U CN209827729U (en) | 2019-02-13 | 2019-02-13 | Rapid sampling device for hemodialysis instrument |
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| Publication Number | Publication Date |
|---|---|
| CN209827729U true CN209827729U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920194933.7U Active CN209827729U (en) | 2019-02-13 | 2019-02-13 | Rapid sampling device for hemodialysis instrument |
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| CN (1) | CN209827729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082333A (en) * | 2021-04-08 | 2021-07-09 | 上海医药血液技术产业发展有限公司 | Hemodialysis machine and endotoxin sampler equipped therewith |
-
2019
- 2019-02-13 CN CN201920194933.7U patent/CN209827729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113082333A (en) * | 2021-04-08 | 2021-07-09 | 上海医药血液技术产业发展有限公司 | Hemodialysis machine and endotoxin sampler equipped therewith |
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Effective date of registration: 20230320 Address after: Room 4301-4304, Floor 43, Building 1, Xinyada International Creative Center, No. 1750, Jianghong Road, Changhe Street, Binjiang District, Hangzhou City, Zhejiang Province 310000-065 Patentee after: Hangzhou Shuren Zhijiao Technology Co.,Ltd. Address before: 323000 15 Volkswagen street, Liandu District, Lishui, Zhejiang Patentee before: LISHUI PEOPLE'S Hospital |