CN105641804A - Medical one-way valve - Google Patents
Medical one-way valve Download PDFInfo
- Publication number
- CN105641804A CN105641804A CN201610215390.3A CN201610215390A CN105641804A CN 105641804 A CN105641804 A CN 105641804A CN 201610215390 A CN201610215390 A CN 201610215390A CN 105641804 A CN105641804 A CN 105641804A
- Authority
- CN
- China
- Prior art keywords
- valve body
- check valve
- medical check
- spool
- upper valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2406—Check- or non-return valves designed to quickly shut upon the presence of back-pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention belongs to the technical field of medical instruments, and in particular relates to a medical one-way valve which can be connected with an injector, an infusion set and other medical instruments, the flow direction of a liquid or a gas can be well controlled, sterile and rapid infusion, hydrops suction and blood transfusion of a patient, medicinal liquid division treatment or gas exhaust can be achieved, liquid leakage can be reduced or avoided, frequency of needle withdrawal and thrusting can be reduced, and pain of the patient can be greatly relieved.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of Medical check valve.
Background technology
In medical apparatus and instruments, check valve is widely used in above the medical apparatus and instruments such as tracheal intubation, catheter, laryngeal mask, anaesthetic mask, and the check valve used on the market at present is mostly and is made up of valve body, valve gap, valve core cap, metal spring, fluid sealant pad. Owing to its principle producing to seal is to be produced pressure compression glue gasket by spring to seal, the pressure of spring is inadequate, can seal bad, pressure is too big, again can be in use, the syringe of ventilation is backed down, affect the operation of nurse, and owing to check valve volume is tiny, structure is complicated, so the required precision of part is high, manufacturing cost remains high, it addition, in the process that patient is treated, sometimes while assisting patients's normal ventilation, patient also will with trachea, intubate and do nuclear magnetic resonance, NMR.
Summary of the invention
Present invention aim to address the deficiency of Medical check valve in prior art.
For this, the invention provides a kind of Medical check valve, including valve body and passage, and it is arranged at the spool of channel interior, described valve body is divided into upper valve body and lower valve body, and described spool includes upper valve core and bottom spool, and described upper valve core is the annulus being arranged at channel interior; The medial wall of described bottom spool is provided with convex through hole, and the bottom surface of bottom spool is provided with barrier plate, and described barrier plate is connected by linking arm and bottom spool sidewall are fixing; Being additionally provided with support parts inside described upper valve body, these support parts coordinate with the stop member being arranged at lower valve body lateral wall, in order to upper valve core coincide with bottom spool, it is ensured that passage is individual event passage.
It is provided with the upper interface channel connected with upper valve core in the middle part of described upper valve body end face, and the top of upper interface channel is provided with outer connection screw thread.
The bottom surface of described lower valve body and sidewall junction are provided with threaded connecting sleeve, and described threaded connecting sleeve is internal, be provided with the lower interface channel connected with bottom spool in the middle part of the bottom surface of lower valve body.
The lateral wall of described lower valve body is provided with leakage-proof part, and described leakage-proof part is identical with the sidewall of upper valve body.
It is provided with the second time interface channel connected with bottom spool in the middle part of described lower valve body bottom surface, and the bottom of second time interface channel is provided with outer connection screw thread.
The end face of described upper valve body and sidewall junction are provided with the second threaded connecting sleeve, inside described second threaded connecting sleeve, are provided with interface channel on connect second with upper valve core in the middle part of the end face of upper valve body.
Being provided with the spherical flow control parts of semicircle in described bottom spool, described flow control parts bottom surface is provided with Flexible Connector.
Beneficial effects of the present invention: this Medical check valve provided by the invention, syringe, transfusion device and other medical instruments can be connected to, can be good at controlling the flow direction of liquid or gas, to patient infusion, extraction hydrops, blood transfusion, or be capable of time medicinal liquid is carried out separatory process and aerofluxus aseptic, quickly finish, reduce or avoid leakage, reduce the number of times pulling out pin, contact pin, be greatly reduced the misery of patient.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is Medical check valve overall schematic.
Fig. 2 is upper valve body schematic diagram.
Fig. 3 is lower valve body schematic diagram.
Fig. 4 is lower valve body top plan view.
Fig. 5 is upper valve body the second schematic diagram.
Fig. 6 is lower valve body the second schematic diagram.
Fig. 7 is upper valve body the 3rd schematic diagram.
Fig. 8 is lower valve body the 3rd schematic diagram.
Fig. 9 is lower valve body the 4th schematic diagram.
Figure 10 is that Double needle stand syringe share schematic diagram with Medical check valve.
Figure 11 is the direct-connected mouth schematic diagram of Medical check valve.
Figure 12 is the threaded mouth schematic diagram of Medical check valve.
Figure 13 is Medical check valve one end be the direct-connected mouth other end is threaded connecting sleeve interface diagram.
Figure 14 is Medical check valve one end be the threaded mouth other end is threaded connecting sleeve interface diagram figure.
Figure 15 is Medical check valve one end be the direct-connected mouth other end is external screw thread connector schematic diagram.
Figure 16 is Medical check valve one end be the threaded mouth other end is external screw thread connector schematic diagram figure.
In figure: 1, upper valve body; 2, lower valve body; 3, upper valve core; 4, bottom spool; 5, convex through hole; 6, annulus; 7, draw-in groove; 8, barrier plate; 9, linking arm; 10, stop member; 11, leakage-proof part; 12, lower interface channel; 13, threaded connecting sleeve; 14, upper interface channel; 15, parts are supported; 16, second time interface channel; 17, interface channel on second; 18, the second threaded connecting sleeve; 19, flow control parts; 20, Flexible Connector; 21, Double needle stand syringe; 22, needle stand; 23, syringe; 24, Medical check valve.
Detailed description of the invention
Reach, for the present invention is expanded on further, technological means and effect that predetermined purpose is taked, below in conjunction with drawings and Examples to the specific embodiment of the present invention, architectural feature and effect thereof, describe in detail as follows.
Embodiment 1:
In order to solve the deficiency of existing Medical check valve, the invention provides a kind of Medical check valve as shown in Figure 1, Figure 2, Figure 3, Figure 4, including valve body and passage, and it is arranged at the spool of channel interior, described valve body is divided into upper valve body 1 and lower valve body 2, described spool includes upper valve core 3 and bottom spool 4, and described upper valve core 3 is the annulus 6 being arranged at channel interior; The medial wall of described bottom spool 4 is provided with convex through hole 5, and this convex through hole 5 is provided with three, and angle is 120 �� between any two; The bottom surface of bottom spool 4 is provided with barrier plate 8, and described barrier plate 8 is connected by linking arm 9 and bottom spool 4 sidewall are fixing; And linking arm 9 is also equipped with three, angle is 120 �� between any two, as shown in Figure 4, one end of linking arm 9 is fixing with barrier plate 8 to be connected, the other end is connected with the side of bottom spool 4, it is shown that linking arm 9 is S shape, and this S shape linking arm 9 is arranged at intervals on bottom spool 4 sidewall with convex through hole 5; Described upper valve body 1 is internal is additionally provided with support parts 15, and these support parts 15 coordinate with the stop member 10 being arranged at lower valve body 2 lateral wall, in order to upper valve core 3 coincide with bottom spool 4, it is ensured that passage is individual event passage.
As shown in Figure 1, Figure 2, shown in Fig. 7, it is provided with the upper interface channel 14 connected with upper valve core 3 in the middle part of described upper valve body 1 end face, and the top of upper interface channel 14 is provided with outer connection screw thread.
As shown in Fig. 1, Fig. 3, Fig. 8, the bottom surface of described lower valve body 2 and sidewall junction are provided with threaded connecting sleeve 13, are provided with, in the middle part of the bottom surface of described threaded connecting sleeve 13 valve body 2 internal, lower, the lower interface channel 12 connected with bottom spool 4.
When liquid enters this Medical check valve from the upper interface channel 14 shown in Fig. 1 time, barrier plate 8 can be subject to the effect of thrust, thus promoting the direction of the downward valve body 2 of bottom spool 4 to move, thus make liquid can pass through convex through hole 5, flow out this Medical check valve hence into lower interface channel 12; When liquid enters this Medical check valve from lower interface channel 12 time, barrier plate 8 being promoted to move to the direction of upper valve body 1, thus making liquid cannot pass through convex through hole 5, thus cutting off the flow direction of liquid.
As it is shown on figure 3, the lateral wall of described lower valve body 2 is provided with leakage-proof part 11, described leakage-proof part 11 is identical with the sidewall of upper valve body 1, so can improve the closure of valve body, it is to avoid cause the phenomenon of leakage to occur because fluid produces pressure by passage.
As shown in Figure 6, it is provided with, in the middle part of described lower valve body 2 bottom surface, the second time interface channel 16 connected with bottom spool 4, and the bottom of second time interface channel 16 is provided with outer connection screw thread; So conveniently can be attached with other medical apparatus, or outer connection screw thread is removed, change convenient other medical apparatus and instruments with prior art of common connector into and be attached.
As shown in Figure 5, the end face of described upper valve body 1 and sidewall junction are provided with the second threaded connecting sleeve 18, described second threaded connecting sleeve 18 is internal, be provided with interface channel 17 on connect second with upper valve core 3 in the middle part of the end face of upper valve body 1, or connector other medical apparatus and instruments convenient and prior art being arranged to the connector of interface channel on second 17 lead to are attached.
As shown in Figure 8, Figure 9, being provided with the flow control parts 19 that semicircle is spherical in described bottom spool 4, described flow control parts 19 bottom surface is provided with Flexible Connector 20, the equally possible function realizing check valve of this set, and structure is more simple.
Embodiment 2:
Medical check valve described in above-described embodiment 1, can be arranged on the syringe 21 of double needle seat, between its needle stand 22 and syringe 23 of syringe, as shown in Figure 10, so can control to flow in/out the liquid of Double needle stand syringe 21, guarantee backflow phenomenon, it is possible to achieve feed liquor, go out the recycling of liquid, it is to avoid because frequently contact pin, the problem pulling out pin and cause antibacterial to infect, bring great pain to patient.
Or Medical check valve is arranged on tube for transfusion, so can, when rescue patient, this tube for transfusion is connected on syringe, it is possible to extract hydrops quickly and easily, not only safe but also facilitate.
Or by described Medical check valve, be arranged on medical thrust, if be inserted in different storing medicine bottles, it is possible to realize aseptic virus-free, separate medicinal liquid fast and efficiently.
Carry out same blood group blood transfusion in, can this Medical check valve be arranged on transfusion needle, equally possible prevent transfuse blood time volume blood backflow, reduce infect virus possibility.
It addition, for the most emerging infusion pump, when transfusion, the efficiency of transfusion can be improved well avoid liquid to reflux if arranging this check valve.
Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16 show several connector schematic diagrams of this Medical check valve. Wherein, Figure 11 is the direct-connected mouth schematic diagram of Medical check valve, Figure 12 is the threaded mouth schematic diagram of Medical check valve, Figure 13 is Medical check valve one end be the direct-connected mouth other end is threaded connecting sleeve interface diagram, Figure 14 is Medical check valve one end be the threaded mouth other end is threaded connecting sleeve interface diagram figure, Figure 15 is Medical check valve one end be the direct-connected mouth other end is external screw thread connector schematic diagram, and Figure 16 is Medical check valve one end be the threaded mouth other end is external screw thread connector schematic diagram figure. Practical application for check valve is not limited to the interface mode described in embodiment, required structure can be adopted flexibly to arrange pattern according to the needs of practical application.
The Medical check valve that above example adopts, the needs that the liquid of its setting flows to according to practical application are set, liquid is not flowed to the switch direction of namely valve and makees concrete restriction by above-described embodiment, but in Figure of description, direction pointed by arrow is the flow direction of liquid, no longer illustrates here.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations. For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, protection scope of the present invention all should be considered as belonging to.
Claims (7)
1. a Medical check valve, including valve body and passage, and it is arranged at the spool of channel interior, described valve body is divided into upper valve body (1) and lower valve body (2), it is characterized in that: described spool includes upper valve core (3) and bottom spool (4), and described upper valve core (3) is the annulus (6) being arranged at channel interior; The medial wall of described bottom spool (4) is provided with convex through hole (5), and the bottom surface of bottom spool (4) is provided with barrier plate (8), and described barrier plate (8) is connected by linking arm (9) and bottom spool (4) sidewall are fixing; Described upper valve body (1) is internal is additionally provided with support parts (15), and these support parts (15) coordinate with the stop member (10) being arranged at lower valve body (2) lateral wall, in order to upper valve core (3) coincide with bottom spool (4), it is ensured that passage is individual event passage.
2. Medical check valve as claimed in claim 1, it is characterised in that: it is provided with the upper interface channel (14) connected with upper valve core (3) in the middle part of described upper valve body (1) end face, and the top of upper interface channel (14) is provided with outer connection screw thread.
3. Medical check valve as claimed in claim 1, it is characterized in that: the bottom surface of described lower valve body (2) and sidewall junction are provided with threaded connecting sleeve (13), are provided with, in the middle part of the bottom surface of described threaded connecting sleeve (13) valve body (2) internal, lower, the lower interface channel (12) connected with bottom spool (4).
4. Medical check valve as claimed in claim 1, it is characterised in that: the lateral wall of described lower valve body (2) is provided with leakage-proof part (11), and described leakage-proof part (11) is identical with the sidewall of upper valve body (1).
5. Medical check valve as claimed in claim 1, it is characterised in that: it is provided with the second time interface channel (16) connected with bottom spool (4) in the middle part of described lower valve body (2) bottom surface, and the bottom of second time interface channel (16) is provided with outer connection screw thread.
6. Medical check valve as claimed in claim 1, it is characterized in that: the end face of described upper valve body (1) and sidewall junction are provided with the second threaded connecting sleeve (18), described second threaded connecting sleeve (18) is internal, be provided with interface channel (17) on connect second with upper valve core (3) in the middle part of the end face of upper valve body (1).
7. Medical check valve as claimed in claim 1, it is characterised in that: being provided with the spherical flow control parts (19) of semicircle in described bottom spool (4), described flow control parts (19) bottom surface is provided with Flexible Connector (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215390.3A CN105641804A (en) | 2016-04-08 | 2016-04-08 | Medical one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215390.3A CN105641804A (en) | 2016-04-08 | 2016-04-08 | Medical one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105641804A true CN105641804A (en) | 2016-06-08 |
Family
ID=56497039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610215390.3A Pending CN105641804A (en) | 2016-04-08 | 2016-04-08 | Medical one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105641804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174680A (en) * | 2017-07-04 | 2017-09-19 | 张家港市沙工医疗器械科技发展有限公司 | Bladder type ureteral catheter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010047747A1 (en) * | 2010-10-08 | 2012-04-12 | Cedic Srl-Divisione Biomedicale | One-way valve, particularly for medicinal usage such as for infusion set, has valve housing, inlet opening, outlet opening and valve arrangement, which consists of valve body and valve seal |
| CN102606772A (en) * | 2012-03-16 | 2012-07-25 | 武汉东方骏驰精密制造有限公司 | Simplified integral valve |
| CN202605411U (en) * | 2012-04-12 | 2012-12-19 | 福建省百仕韦医用高分子股份有限公司 | Medical needle-free positive pressure joint |
| CN102935256A (en) * | 2012-12-05 | 2013-02-20 | 山东威高集团医用高分子制品股份有限公司 | One-way valve for infusion |
| CN203297693U (en) * | 2013-05-31 | 2013-11-20 | 袁东日 | One-way valve device |
| CN103463735A (en) * | 2013-10-16 | 2013-12-25 | 丘奂阳 | Improved one-way and two-way integrated valve for medical treatment |
| CN203564600U (en) * | 2013-10-16 | 2014-04-30 | 深圳市益心达医学新技术有限公司 | Check valve multi-way device |
| CN205649737U (en) * | 2016-04-08 | 2016-10-19 | 黄敬远 | Medical check valve |
-
2016
- 2016-04-08 CN CN201610215390.3A patent/CN105641804A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010047747A1 (en) * | 2010-10-08 | 2012-04-12 | Cedic Srl-Divisione Biomedicale | One-way valve, particularly for medicinal usage such as for infusion set, has valve housing, inlet opening, outlet opening and valve arrangement, which consists of valve body and valve seal |
| CN102606772A (en) * | 2012-03-16 | 2012-07-25 | 武汉东方骏驰精密制造有限公司 | Simplified integral valve |
| CN202605411U (en) * | 2012-04-12 | 2012-12-19 | 福建省百仕韦医用高分子股份有限公司 | Medical needle-free positive pressure joint |
| CN102935256A (en) * | 2012-12-05 | 2013-02-20 | 山东威高集团医用高分子制品股份有限公司 | One-way valve for infusion |
| CN203297693U (en) * | 2013-05-31 | 2013-11-20 | 袁东日 | One-way valve device |
| CN103463735A (en) * | 2013-10-16 | 2013-12-25 | 丘奂阳 | Improved one-way and two-way integrated valve for medical treatment |
| CN203564600U (en) * | 2013-10-16 | 2014-04-30 | 深圳市益心达医学新技术有限公司 | Check valve multi-way device |
| CN205649737U (en) * | 2016-04-08 | 2016-10-19 | 黄敬远 | Medical check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174680A (en) * | 2017-07-04 | 2017-09-19 | 张家港市沙工医疗器械科技发展有限公司 | Bladder type ureteral catheter |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
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| RJ01 | Rejection of invention patent application after publication |