CN104524670A - Needle type precise filtering and medicine dissolving syringe - Google Patents
Needle type precise filtering and medicine dissolving syringe Download PDFInfo
- Publication number
- CN104524670A CN104524670A CN201510025830.4A CN201510025830A CN104524670A CN 104524670 A CN104524670 A CN 104524670A CN 201510025830 A CN201510025830 A CN 201510025830A CN 104524670 A CN104524670 A CN 104524670A
- Authority
- CN
- China
- Prior art keywords
- check valve
- port
- valve sheet
- subaisle
- molten
- 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
Links
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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3145—Filters incorporated in syringes
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention relates to a needle type precise filtering and medicine dissolving syringe. A main channel, a first auxiliary channel and a second auxiliary channel are arranged in a second medicine dissolving pipe, a first port of the main channel is communicated with a medicine dissolving cavity, a second port of the main channel is communicated with an injection needle, a first port of the first auxiliary channel is communicated with the medicine dissolving cavity, a second port of the first auxiliary channel intersects with the main channel, a first port of the second auxiliary channel is communicated with the medicine dissolving cavity, a second port of the second auxiliary channel intersects with the main channel , a main one-way valve block is installed on the first port of the main channel, a first auxiliary one-way valve block is installed on the second port of the first auxiliary channel, a second auxiliary one-way valve block is installed on the second port of the second auxiliary channel, and the interior of the medicine dissolving cavity is provided with a precise filtering film which can separate the interior of the medicine dissolving cavity from the space from the first port of the main channel to the first port of the first auxiliary channel and the first port of the second auxiliary channel.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of can the molten syringe of pin type secondary filter of filtering liquid medicine.
Background technology
The medicinal liquid of current Clinical practice is encapsulated in vial more, and when pricking the rubber stopper of vial with the syringe needle of syringe or cut vial extraction medicinal liquid with emery wheel, the microgranules such as bottle stopper material bits or glass powder are easily mixed into the liquid; In addition, because artificial preservation is improper or the reason such as operate miss also easily causes medicinal liquid to produce particulate matter.Again because common syringe does not possess filtering function, these microgranules will be injected in patient body together with medicinal liquid, thus cause multiple injury to the health of patient, and the lighter may bring out the diseases such as inflammation of vein, and severe one even may be carcinogenic.
Summary of the invention
The present invention is directed to ordinary syringe in prior art and do not possess filtering function, cause the problem that the health of the microgranule in medicinal liquid to patient damages, there is provided a kind of can microgranule effectively in filtering liquid medicine, prevent the molten syringe of pin type secondary filter that it damages the health of patient.
The molten syringe of a kind of pin type secondary filter that the present invention proposes, comprises push rod, the first molten pencil, molten medicine cavity, the second molten pencil and entry needle; Described push rod is movable to be installed in described first molten pencil, and described first molten pencil is connected with described molten medicine cavity; Described second molten pencil inside is provided with main channel, the first subaisle and the second subaisle; First port of described main channel is communicated with described molten medicine cavity, and its second port is communicated with described entry needle; First port of described first subaisle is communicated with described molten medicine cavity, and its second port and described main channel cross; First port of described second subaisle is communicated with described molten medicine cavity, and its second port and described main channel cross;
The molten syringe of described pin type secondary filter also comprises check valve, and described check valve comprises main check valve sheet, the first secondary check valve sheet and triplicate to valve block; Described main check valve sheet is movable to be installed on the first port of described main channel, on movable the second port being installed in described first subaisle of described first secondary check valve sheet, described triplicate is on movable the second port being installed in described second subaisle of valve block; Described main check valve sheet is contrary relative to the opening direction of described main channel with the first secondary check valve sheet; Described triplicate is identical relative to the opening direction of described main channel with the first secondary check valve sheet to valve block; Described molten medicine inside cavity is provided with secondary filter film, and described secondary filter film is by spaced apart from the first port of described main channel between the first port of described first subaisle of described molten medicine inside cavity; And described secondary filter film is simultaneously by spaced apart from the first port of described main channel between the first port of described second subaisle of described molten medicine inside cavity.
Preferably, described main check valve sheet can be opened along the direction away from described main channel; Described first secondary check valve sheet can be opened along the direction away from described first subaisle; Described triplicate can be opened along the direction away from described second subaisle to valve block.
Preferably, described molten medicine inside cavity is separated into main chamber and secondary cavity by described secondary filter film, described main chamber is communicated with the first port of described main channel with described first molten pencil respectively, and described secondary cavity is communicated with the first port of described second subaisle with the first port of described first subaisle respectively.
Preferably, described main check valve sheet, the first secondary check valve sheet and triplicate are formed in one to valve block.
Preferably, described main check valve sheet, the first secondary check valve sheet and triplicate are flexible check valve sheet to valve block.
Preferably, the silica gel valve block that is formed in one to valve block three of described main check valve sheet, the first secondary check valve sheet and triplicate.
Preferably, the first end of described first secondary check valve sheet is connected with main check valve sheet, and second end relative with first end is free end; Described triplicate is connected to the first end of valve block with main check valve sheet, and second end relative with first end is free end.
Preferably, when described main check valve sheet, the first secondary check valve sheet and triplicate move to valve block three is overall along the direction away from described main channel, first port of described main channel is opened by described main check valve sheet, the free end of described first secondary check valve sheet by the second port shutdown of described first subaisle, described triplicate to the free end of valve block by the second port shutdown of described second subaisle; When described main check valve sheet, the first secondary check valve sheet and triplicate move to the overall direction along close described main channel of valve block three, described main check valve sheet is by the first port shutdown of described main channel, second port of described first subaisle is opened by the free end of described first secondary check valve sheet, and the second port of described second subaisle is opened to the free end of valve block by described triplicate.
Preferably, the first end of described main check valve sheet, the first secondary check valve sheet and first end from triplicate to valve block between form primary valve; When described main check valve sheet, the first secondary check valve sheet and triplicate move to valve block three is overall along the direction away from described main channel, described primary valve enters in described molten medicine cavity at least partly, and described molten medicine cavity is communicated with described main channel; When described main check valve sheet, the first secondary check valve sheet and triplicate move to the overall direction along close described main channel of valve block three, described primary valve enters in described main channel, and described molten medicine cavity and described main channel separate by described main check valve sheet.
Preferably, described primary valve is roughly V-shaped.
Beneficial effect: the molten syringe of pin type secondary filter that the present invention proposes, can open along the direction away from main channel with main check valve sheet, first secondary check valve sheet can be opened along the direction away from the first subaisle, triplicate can be opened for example along the direction away from the second subaisle to valve block, when carrying out extraction medicinal liquid, by entry needle, medicinal liquid is extracted to main channel, now, main check valve sheet opens the first port of main channel, first secondary check valve sheet closes the second port of the first subaisle, triplicate closes the second port of the second subaisle to valve block, the first port by main channel enters in molten medicine cavity by medicinal liquid, when carrying out liquid medicine injection, main check valve sheet closes the first port of main channel, medicinal liquid filter by secondary filter film, the first port by the first subaisle enters in the first subaisle by the medicinal liquid after filtration, and enter in the second subaisle by the first port of the second subaisle, now, first secondary check valve sheet opens the second port of the first subaisle, triplicate opens the second port of the second subaisle to valve block, medicinal liquid after filtration will import in main channel by the second port of the first subaisle and the second port of the second subaisle, finally inject not containing the medicinal liquid of microgranule from entry needle, effectively prevent the health of microgranule to patient to damage.Structure of the present invention is simple and exquisite, easy to operate, and practicality is high.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the molten syringe embodiment one of a kind of pin type secondary filter that the present invention proposes.
Fig. 2 is the A-A view of Fig. 1.
Sectional structure schematic diagram when Fig. 3 is the pin type secondary filter molten syringe extraction medicinal liquid in Fig. 1.
Fig. 4 is the sectional structure schematic diagram of the molten syringe embodiment two of a kind of pin type secondary filter that the present invention proposes.
In Fig. 1 to Fig. 3: 110-push rod, the molten pencil of 120-first, the molten medicine cavity of 130-, 131-secondary filter film, 132-main chamber, 133-secondary cavity, the molten pencil of 140-second, 141-main channel, 142-first subaisle, 143-second subaisle, 150-entry needle, the main check valve sheet of 161-, the secondary check valve sheet of 162-first, 163-triplicate to valve block, 164-primary valve.
In Fig. 4: 210-push rod, the molten pencil of 220-first, the molten medicine cavity of 230-, 231-secondary filter film, 232-main chamber, 233-secondary cavity, the molten pencil of 240-second, 241-main channel, 242-first subaisle, 243-second subaisle, 250-entry needle, the main check valve sheet of 261-, the secondary check valve sheet of 262-first, 263-triplicate to valve block, 264-primary valve.
Detailed description of the invention
For the ease of it will be appreciated by those skilled in the art that the present invention is described further below in conjunction with accompanying drawing and embodiment.
Embodiment one:
Refer to Fig. 1 and Fig. 2, the molten syringe of a kind of pin type secondary filter that the present embodiment proposes, comprise the molten pencil 120 of push rod 110, first, molten medicine cavity 130, second molten pencil 140 and entry needle 150; Described push rod 110 is movable to be installed in described first molten pencil 120, and described first molten pencil 120 is connected with described molten medicine cavity 130; Described second molten pencil 140 inside is provided with main channel 141, first subaisle 142, second subaisle 143; First port of described main channel 141 is communicated with described molten medicine cavity 130, and its second port is communicated with described entry needle 150; First port of described first subaisle 142 is communicated with described molten medicine cavity 130, and its second port and described main channel 141 cross; First port of described second subaisle 143 is communicated with described molten medicine cavity 130, and its second port and described main channel cross.
The molten syringe of described pin type secondary filter also comprises check valve, and described check valve comprises the secondary check valve sheet 162 of main check valve sheet 161, first and triplicate to valve block 163; On movable the first port being installed in described main channel 141 of described main check valve sheet 161, on movable the second port being installed in described first subaisle 142 of described first secondary check valve sheet 162, described main check valve sheet 161 and the first secondary check valve sheet 162 contrary relative to the opening direction of described main channel 141 (opening direction here refer to the two relative to described main channel 141 be away from or near for); Described triplicate is identical relative to the opening direction of described main channel 141 with the first secondary check valve sheet 162 to valve block 163; Described molten medicine cavity 130 inside is provided with secondary filter film 131, and described secondary filter film 131 is by spaced apart from the first port of described main channel 141 between the first port of described first subaisle 142 of described molten medicine cavity 130 inside; And described secondary filter film 131 is simultaneously by spaced apart from the first port of described main channel 141 between the first port of described second subaisle 143 of described molten medicine cavity 130 inside.
As shown in figures 1 and 3, when up being taken out by push rod 110, then extraction medicinal liquid can be carried out; During by push rod 110 depress, then liquid medicine injection can be carried out.
In the present embodiment, the secondary check valve sheet 162 of described main check valve sheet 161, first is contrary relative to the opening direction of described main channel 141 to valve block 163 with triplicate, concrete preferably following scheme: described main check valve sheet 161 can be opened along the direction away from described main channel 141; Described first secondary check valve sheet 162 can be opened along the direction away from described first subaisle 142 (shown in Fig. 1, also namely the first secondary check valve sheet 162 can be opened along the direction near axis, main channel 141); Described triplicate can be opened (shown in Fig. 1 along the direction away from described second subaisle 143 to valve block 163, also namely triplicate can be opened along the direction near axis, main channel 141 equally to valve block 163, and therefore in the present embodiment, triplicate is identical relative to the opening direction of described main channel 141 with the first secondary check valve sheet 162 to valve block 163).
The molten syringe of pin type secondary filter that the present embodiment proposes, its second molten pencil 140 inside is provided with main channel 141, first subaisle 142 and the second subaisle 143, first port of main channel 141 is communicated with molten medicine cavity 130, and its second port is communicated with entry needle 150, first port of the first subaisle 142 is communicated with molten medicine cavity 130, and its second port and described main channel 141 cross, first port of the second subaisle 143 is communicated with molten medicine cavity 130, and its second port and described main channel 141 cross, main check valve sheet 161 is installed on the first port of main channel 141, first secondary check valve sheet 162 is installed on the second port of the first subaisle 142, triplicate is installed on the second port of the second subaisle 143 to valve block 163, and described main check valve sheet 161 can be opened along the direction away from described main channel 141, described first secondary check valve sheet 162 can be opened along the direction away from described first subaisle 142, described triplicate can be opened along the direction away from described second subaisle 143 to valve block 163, molten medicine cavity 130 inside is provided with by its inside from the spaced apart secondary filter film 131 (the present embodiment, secondary filter film 131 is annular) between the first port of the first port to the first subaisle 142 of main channel 141, and this secondary filter film 131 is simultaneously by spaced apart from the first port of described main channel 141 between the first port of described second subaisle 143 of described molten medicine cavity 130 inside, when carrying out extraction medicinal liquid, by entry needle 150, medicinal liquid is extracted to main channel 141, now, main check valve sheet 161 opens the first port of main channel 141, first secondary check valve sheet 162 closes the second port of the first subaisle 142, triplicate closes the second port of the second subaisle 143 to valve block 163, and the first port by main channel 141 is entered into (and medicinal liquid can arrive in the first molten pencil 120) in molten medicine cavity 130 by medicinal liquid, when carrying out liquid medicine injection, the main check valve sheet 161 of the first port of main channel 141 closes the first port of main channel 141, medicinal liquid filter by secondary filter film 131, the first port by the first subaisle 142 enters in the first subaisle 142 by the medicinal liquid after filtration, and enter in the second subaisle 143 by the first port of the second subaisle 143, now, first secondary check valve sheet 162 opens the second port of the first subaisle 142, triplicate opens the second port of the second subaisle 143 to valve block 163, medicinal liquid after filtration will import in main channel 141 by the second port of the first subaisle 142 and the second port of the second subaisle 143, finally inject not containing the medicinal liquid of microgranule from entry needle 150, effectively prevent the health of microgranule to patient to damage.The present embodiment structure is simple and exquisite, easy to operate, and practicality is high.
In order to realize the object of the present embodiment better, the present embodiment has also done following optimization:
In the present embodiment, described molten medicine cavity 130 interior separation is become main chamber 132 and secondary cavity 133 by described secondary filter film 131, described main chamber 132 is communicated with the first port of described main channel 141 with described first molten pencil 120 respectively, and described secondary cavity 132 is communicated with the first port of described first subaisle 142, the first port of described second subaisle 143 respectively.
In the present embodiment, the secondary check valve sheet 162 of described main check valve sheet 161, first and triplicate preferably one-body molded to valve block 163, structure can be made so more exquisite, compact and be convenient to realize.Simultaneously, the secondary check valve sheet 162 of described main check valve sheet 161, first and the first secondary check valve sheet 163 are all preferably flexible check valve sheet, like this when extracting medicinal liquid, after medicinal liquid enters inside, main channel 141 from entry needle 150, automatically main check valve sheet 161 can be washed open, and compress the first secondary check valve sheet 162 and triplicate to valve block 163, with the second port of second port and the second subaisle 143 of closing the first subaisle 142 respectively; When liquid medicine injection, medicinal liquid can compress main check valve sheet 161 makes it close the first port of main channel 141, and automatically washes the first secondary check valve sheet 162 and triplicate open to valve block 163, imports in main channel 141, finally injects away from entry needle 150.Concrete, the secondary check valve sheet 162 of described main check valve sheet 161, first, triplicate are specifically preferably integrated silica gel valve block to valve block 163, have both met one-body molded, meet flexible feature again.
Further, the first end of described first secondary check valve sheet 162 is connected with main check valve sheet 161, and second end relative with first end is free end; Described triplicate is connected to the first end of valve block 163 with main check valve sheet 161, and second end relative with first end is free end.
When the secondary check valve sheet 162 of described main check valve sheet 161, first and triplicate move to valve block 163 three is overall along the direction away from described main channel 141, first port of described main channel 141 is opened by described main check valve sheet 161, the free end of described first secondary check valve sheet 162 by the second port shutdown of described first subaisle 142, described triplicate to the free end of valve block 163 by the second port shutdown of described second subaisle 143; When the secondary check valve sheet 162 of described main check valve sheet 161, first and triplicate move to the overall direction along close described main channel 141 of valve block 163 three, described main check valve sheet 161 is by the first port shutdown of described main channel 141, second port of described first subaisle 142 is opened by the free end of described first secondary check valve sheet 162, and the second port of described second subaisle 143 is opened to the free end of valve block 163 by described triplicate.
The first end of the secondary check valve sheet 162 of described main check valve sheet 161, first and first end from triplicate to valve block 163 between form primary valve 164; When the secondary check valve sheet 162 of described main check valve sheet 161, first and triplicate move to valve block 163 three is overall along the direction away from described main channel 141, described primary valve 164 enters in described molten medicine cavity 130 at least partly, and described molten medicine cavity 130 is communicated with described main channel 141; When the secondary check valve sheet 162 of described main check valve sheet 161, first and triplicate move to the overall direction along close described main channel 141 of valve block 163 three, described primary valve 164 enters in described main channel 141, and described molten medicine cavity 130 separates with described main channel 141 by described main check valve sheet 161.
In the present embodiment, described primary valve 164 is preferably roughly V-shaped, certainly, also can be designed to U-shaped etc. as required.
Embodiment two:
Refer to Fig. 4, the present embodiment proposes the molten syringe of another kind of pin type secondary filter, the difference of the molten syringe of pin type secondary filter in itself and above-described embodiment one is only: the first molten pencil 120 in embodiment two pairs of embodiments one has done another and designed, and forms the first molten pencil 220 as shown in Figure 4.In embodiment one, the first molten pencil 120 is preferably one-body molded with molten medicine cavity 130; And in embodiment two, first molten pencil 220 is with molten medicine cavity 230 for detachable combines, and further, the first molten pencil 220 also can be used as the injection tube of ordinary syringe in prior art, be arranged on molten medicine cavity 230, can be filtered medicinal liquid when extraction and liquid medicine injection.
Concrete, the molten syringe of pin type secondary filter that embodiment two proposes comprises the molten pencil 220 of push rod 210, first, molten medicine cavity 230, second molten pencil 240 and entry needle 250; Described push rod 210 is movable to be installed in described first molten pencil 220, and described first molten pencil 220 is connected with described molten medicine cavity 230; Described second molten pencil 240 inside is provided with main channel 241, first subaisle 242, second subaisle 243; First port of described main channel 241 is communicated with described molten medicine cavity 230, and its second port is communicated with described entry needle 250; First port of described first subaisle 242 is communicated with described molten medicine cavity 230, and its second port and described main channel 241 cross; First port of described second subaisle 243 is communicated with described molten medicine cavity 230, and its second port and described main channel cross.
The molten syringe of described pin type secondary filter also comprises check valve, and described check valve comprises the secondary check valve sheet 262 of main check valve sheet 261, first and triplicate to valve block 263; On movable the first port being installed in described main channel 241 of described main check valve sheet 261, on movable the second port being installed in described first subaisle 242 of described first secondary check valve sheet 262, described main check valve sheet 261 and the first secondary check valve sheet 262 contrary relative to the opening direction of described main channel 241 (opening direction here refer to the two relative to described main channel 241 be away from or close); Described triplicate is identical relative to the opening direction of described main channel 241 with the first secondary check valve sheet 262 to valve block 263; Described molten medicine cavity 230 inside is provided with secondary filter film 231, and described secondary filter film 231 is by spaced apart from the first port of described main channel 241 between the first port of described first subaisle 242 of described molten medicine cavity 230 inside; And described secondary filter film 231 is simultaneously by spaced apart from the first port of described main channel 241 between the first port of described second subaisle 143 of described molten medicine cavity 230 inside.
As shown in Figure 4, when up being taken out by push rod 210, then extraction medicinal liquid can be carried out; During by push rod 210 depress, then liquid medicine injection can be carried out.
In the present embodiment, the secondary check valve sheet 262 of described main check valve sheet 261, first is contrary relative to the opening direction of described main channel 241 to valve block 263 with triplicate, concrete preferably following scheme: described main check valve sheet 261 can be opened along the direction away from described main channel 241; Described first secondary check valve sheet 262 can be opened along the direction away from described first subaisle 242 (shown in Fig. 4, also namely the first secondary check valve sheet 262 can be opened along the direction near axis, main channel 241); Described triplicate can be opened (shown in Fig. 4 along the direction away from described second subaisle 243 to valve block 263, also namely triplicate can be opened along the direction near axis, main channel 241 equally to valve block 263, and therefore in the present embodiment, triplicate is identical relative to the opening direction of described main channel 241 with the first secondary check valve sheet 262 to valve block 263).
The molten syringe of pin type secondary filter that the present embodiment proposes, its second molten pencil 240 inside is provided with main channel 241, first subaisle 242 and the second subaisle 243, first port of main channel 241 is communicated with molten medicine cavity 230, and its second port is communicated with entry needle 250, first port of the first subaisle 242 is communicated with molten medicine cavity 230, and its second port and described main channel 241 cross, first port of the second subaisle 243 is communicated with molten medicine cavity 230, and its second port and described main channel 241 cross, main check valve sheet 261 is installed on the first port of main channel 241, first secondary check valve sheet 262 is installed on the second port of the first subaisle 242, triplicate is installed on the second port of the second subaisle 243 to valve block 263, and described main check valve sheet 261 can be opened along the direction away from described main channel 241, described first secondary check valve sheet 262 can be opened along the direction away from described first subaisle 242, described triplicate can be opened along the direction away from described second subaisle 243 to valve block 263, molten medicine cavity 230 inside is provided with by its inside from the spaced apart secondary filter film 231 (the present embodiment, secondary filter film 231 is annular) between the first port of the first port to the first subaisle 242 of main channel 241, and this secondary filter film 231 is simultaneously by spaced apart from the first port of described main channel 241 between the first port of described second subaisle 243 of described molten medicine cavity 230 inside, when carrying out extraction medicinal liquid, by entry needle 250, medicinal liquid is extracted to main channel 241, now, main check valve sheet 261 opens the first port of main channel 241, first secondary check valve sheet 262 closes the second port of the first subaisle 242, triplicate closes the second port of the second subaisle 243 to valve block 263, and the first port by main channel 241 is entered into (and medicinal liquid can arrive in the first molten pencil 220) in molten medicine cavity 230 by medicinal liquid, when carrying out liquid medicine injection, the main check valve sheet 261 of the first port of main channel 241 closes the first port of main channel 241, medicinal liquid filter by secondary filter film 231, the first port by the first subaisle 242 enters in the first subaisle 242 by the medicinal liquid after filtration, and enter in the second subaisle 243 by the first port of the second subaisle 243, now, first secondary check valve sheet 262 opens the second port of the first subaisle 242, triplicate opens the second port of the second subaisle 243 to valve block 263, medicinal liquid after filtration will import in main channel 241 by the second port of the first subaisle 242 and the second port of the second subaisle 243, finally inject not containing the medicinal liquid of microgranule from entry needle 250, effectively prevent the health of microgranule to patient to damage.The present embodiment structure is simple and exquisite, easy to operate, and practicality is high.
In order to realize the object of the present embodiment better, the present embodiment has also done following optimization:
In the present embodiment, described molten medicine cavity 230 interior separation is become main chamber 232 and secondary cavity 233 by described secondary filter film 231, described main chamber 232 is communicated with the first port of described main channel 241 with described first molten pencil 220 respectively, and described secondary cavity 232 is communicated with the first port of described first subaisle 242, the first port of described second subaisle 243 respectively.
In the present embodiment, the secondary check valve sheet 262 of described main check valve sheet 261, first and triplicate preferably one-body molded to valve block 263, structure can be made so more exquisite, compact and be convenient to realize.Simultaneously, the secondary check valve sheet 262 of described main check valve sheet 261, first and the first secondary check valve sheet 263 are all preferably flexible check valve sheet, like this when extracting medicinal liquid, after medicinal liquid enters inside, main channel 241 from entry needle 250, automatically main check valve sheet 261 can be washed open, and compress the first secondary check valve sheet 262 and triplicate to valve block 263, with the second port of second port and the second subaisle 243 of closing the first subaisle 242 respectively; When liquid medicine injection, medicinal liquid can compress main check valve sheet 261 makes it close the first port of main channel 241, and automatically washes the first secondary check valve sheet 262 and triplicate open to valve block 263, imports in main channel 241, finally injects away from entry needle 250.Concrete, the secondary check valve sheet 262 of described main check valve sheet 261, first and triplicate are specifically preferably integrated silica gel valve block to valve block 263, have both met one-body molded, meet flexible feature again.
Further, the first end of described first secondary check valve sheet 262 is connected with main check valve sheet 261, and second end relative with first end is free end; Described triplicate is connected to the first end of valve block 263 with main check valve sheet 261, and second end relative with first end is free end.
When the secondary check valve sheet 262 of described main check valve sheet 261, first and triplicate move to valve block 263 three is overall along the direction away from described main channel 241, first port of described main channel 241 is opened by described main check valve sheet 261, the free end of described first secondary check valve sheet 262 by the second port shutdown of described first subaisle 242, described triplicate to the free end of valve block 263 by the second port shutdown of described second subaisle 243; When the secondary check valve sheet 262 of described main check valve sheet 261, first and triplicate move to the overall direction along close described main channel 241 of valve block 263 three, described main check valve sheet 261 is by the first port shutdown of described main channel 241, second port of described first subaisle 242 is opened by the free end of described first secondary check valve sheet 262, and the second port of described second subaisle 243 is opened to the free end of valve block 263 by described triplicate.
The first end of the secondary check valve sheet 262 of described main check valve sheet 261, first and first end from triplicate to valve block 263 between form primary valve 264; When the secondary check valve sheet 262 of described main check valve sheet 261, first and triplicate move to valve block 263 three is overall along the direction away from described main channel 241, described primary valve 264 enters in described molten medicine cavity 230 at least partly, and described molten medicine cavity 230 is communicated with described main channel 241; When the secondary check valve sheet 262 of described main check valve sheet 261, first and triplicate move to the overall direction along close described main channel 241 of valve block 263 three, described primary valve 264 enters in described main channel 241, and described molten medicine cavity 230 separates with described main channel 241 by described main check valve sheet 261.
In the present embodiment, described primary valve 264 is preferably roughly V-shaped, certainly, also can be designed to U-shaped etc. as required.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the molten syringe of pin type secondary filter, comprises push rod, the first molten pencil, molten medicine cavity, the second molten pencil and entry needle; Described push rod is movable to be installed in described first molten pencil, and described first molten pencil is connected with described molten medicine cavity; It is characterized in that, described second molten pencil inside is provided with main channel, the first subaisle and the second subaisle; First port of described main channel is communicated with described molten medicine cavity, and its second port is communicated with described entry needle; First port of described first subaisle is communicated with described molten medicine cavity, and its second port and described main channel cross; First port of described second subaisle is communicated with described molten medicine cavity, and its second port and described main channel cross;
The molten syringe of described pin type secondary filter also comprises check valve, and described check valve comprises main check valve sheet, the first secondary check valve sheet and triplicate to valve block; Described main check valve sheet is movable to be installed on the first port of described main channel, on movable the second port being installed in described first subaisle of described first secondary check valve sheet, described triplicate is on movable the second port being installed in described second subaisle of valve block; Described main check valve sheet is contrary relative to the opening direction of described main channel with the first secondary check valve sheet; Described triplicate is identical relative to the opening direction of described main channel with the first secondary check valve sheet to valve block; Described molten medicine inside cavity is provided with secondary filter film, and described secondary filter film is by spaced apart from the first port of described main channel between the first port of described first subaisle of described molten medicine inside cavity; And described secondary filter film is simultaneously by spaced apart from the first port of described main channel between the first port of described second subaisle of described molten medicine inside cavity.
2. the molten syringe of pin type secondary filter according to claim 1, is characterized in that, described main check valve sheet can be opened along the direction away from described main channel; Described first secondary check valve sheet can be opened along the direction away from described first subaisle; Described triplicate can be opened along the direction away from described second subaisle to valve block.
3. the molten syringe of pin type secondary filter according to claim 2, it is characterized in that, described molten medicine inside cavity is separated into main chamber and secondary cavity by described secondary filter film, described main chamber is communicated with the first port of described main channel with described first molten pencil respectively, and described secondary cavity is communicated with the first port of described second subaisle with the first port of described first subaisle respectively.
4. the molten syringe of pin type secondary filter according to claim 3, is characterized in that, described main check valve sheet, the first secondary check valve sheet and triplicate are formed in one to valve block.
5. the molten syringe of pin type secondary filter according to claim 4, is characterized in that, described main check valve sheet, the first secondary check valve sheet and triplicate are flexible check valve sheet to valve block.
6. the molten syringe of pin type secondary filter according to claim 5, is characterized in that, the silica gel valve block that described main check valve sheet, the first secondary check valve sheet and triplicate are formed in one to valve block three.
7. the molten syringe of pin type secondary filter according to claim 5, is characterized in that, the first end of described first secondary check valve sheet is connected with main check valve sheet, and second end relative with first end is free end; Described triplicate is connected to the first end of valve block with main check valve sheet, and second end relative with first end is free end.
8. the molten syringe of pin type secondary filter according to claim 7, it is characterized in that, when described main check valve sheet, the first secondary check valve sheet and triplicate move to valve block three is overall along the direction away from described main channel, first port of described main channel is opened by described main check valve sheet, the free end of described first secondary check valve sheet by the second port shutdown of described first subaisle, described triplicate to the free end of valve block by the second port shutdown of described second subaisle; When described main check valve sheet, the first secondary check valve sheet and triplicate move to the overall direction along close described main channel of valve block three, described main check valve sheet is by the first port shutdown of described main channel, second port of described first subaisle is opened by the free end of described first secondary check valve sheet, and the second port of described second subaisle is opened to the free end of valve block by described triplicate.
9. the molten syringe of pin type secondary filter according to claim 8, is characterized in that, the first end of described main check valve sheet, the first secondary check valve sheet and first end from triplicate to valve block between form primary valve; When described main check valve sheet, the first secondary check valve sheet and triplicate move to valve block three is overall along the direction away from described main channel, described primary valve enters in described molten medicine cavity at least partly, and described molten medicine cavity is communicated with described main channel; When described main check valve sheet, the first secondary check valve sheet and triplicate move to the overall direction along close described main channel of valve block three, described primary valve enters in described main channel, and described molten medicine cavity and described main channel separate by described main check valve sheet.
10. the molten syringe of pin type secondary filter according to claim 8, it is characterized in that, described primary valve is roughly V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025830.4A CN104524670A (en) | 2015-01-19 | 2015-01-19 | Needle type precise filtering and medicine dissolving syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510025830.4A CN104524670A (en) | 2015-01-19 | 2015-01-19 | Needle type precise filtering and medicine dissolving syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104524670A true CN104524670A (en) | 2015-04-22 |
Family
ID=52840414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510025830.4A Pending CN104524670A (en) | 2015-01-19 | 2015-01-19 | Needle type precise filtering and medicine dissolving syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104524670A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310457A (en) * | 2015-06-23 | 2017-01-11 | 上海振浦医疗设备有限公司 | Disposable precision filter syringe and manufacturing method thereof |
| CN111558114A (en) * | 2020-04-07 | 2020-08-21 | 青岛奥利普自动化控制***有限公司 | Liquid medicine filter |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938513A (en) * | 1974-01-03 | 1976-02-17 | Hargest Thomas S | Syringe filter and valve combination |
| US4066079A (en) * | 1976-11-03 | 1978-01-03 | Chiarolla Victor D | Filter needle |
| US4332249A (en) * | 1980-08-01 | 1982-06-01 | Sherwood Medical Industries, Inc. | Filter and valve assembly for hypodermic syringe |
| US4391274A (en) * | 1981-06-26 | 1983-07-05 | Becton, Dickinson And Company | Filtered hub device for aspirating and injecting liquids |
| US20010007062A1 (en) * | 1999-01-12 | 2001-07-05 | Dumaresq-Lucas Alison Jayne | Syringe with filter, and filter therefor |
| KR101178986B1 (en) * | 2012-05-24 | 2012-08-31 | 주식회사 티에이치엠코리아 | Filter for syringe and syringe with the same |
| CN102885694A (en) * | 2012-05-07 | 2013-01-23 | 冀中能源峰峰集团有限公司总医院 | Precision filtration syringe |
| CN103006437A (en) * | 2012-12-03 | 2013-04-03 | 陈庆强 | Double-channel filtration dosing injection syringe |
| CN103492009A (en) * | 2011-04-08 | 2014-01-01 | 佳迈特股份有限公司 | Filter needle |
| CN103721321A (en) * | 2014-01-26 | 2014-04-16 | 山东威高集团医用高分子制品股份有限公司 | Automatic filtration injector |
| CN103736174A (en) * | 2014-01-26 | 2014-04-23 | 山东威高集团医用高分子制品股份有限公司 | Two-way filtration syringe |
| CN204446607U (en) * | 2015-01-19 | 2015-07-08 | 宣城市江南医疗器械有限公司 | The molten syringe of a kind of pin type secondary filter |
-
2015
- 2015-01-19 CN CN201510025830.4A patent/CN104524670A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3938513A (en) * | 1974-01-03 | 1976-02-17 | Hargest Thomas S | Syringe filter and valve combination |
| US4066079A (en) * | 1976-11-03 | 1978-01-03 | Chiarolla Victor D | Filter needle |
| US4332249A (en) * | 1980-08-01 | 1982-06-01 | Sherwood Medical Industries, Inc. | Filter and valve assembly for hypodermic syringe |
| US4391274A (en) * | 1981-06-26 | 1983-07-05 | Becton, Dickinson And Company | Filtered hub device for aspirating and injecting liquids |
| US20010007062A1 (en) * | 1999-01-12 | 2001-07-05 | Dumaresq-Lucas Alison Jayne | Syringe with filter, and filter therefor |
| CN103492009A (en) * | 2011-04-08 | 2014-01-01 | 佳迈特股份有限公司 | Filter needle |
| CN102885694A (en) * | 2012-05-07 | 2013-01-23 | 冀中能源峰峰集团有限公司总医院 | Precision filtration syringe |
| KR101178986B1 (en) * | 2012-05-24 | 2012-08-31 | 주식회사 티에이치엠코리아 | Filter for syringe and syringe with the same |
| CN103006437A (en) * | 2012-12-03 | 2013-04-03 | 陈庆强 | Double-channel filtration dosing injection syringe |
| CN103721321A (en) * | 2014-01-26 | 2014-04-16 | 山东威高集团医用高分子制品股份有限公司 | Automatic filtration injector |
| CN103736174A (en) * | 2014-01-26 | 2014-04-23 | 山东威高集团医用高分子制品股份有限公司 | Two-way filtration syringe |
| CN204446607U (en) * | 2015-01-19 | 2015-07-08 | 宣城市江南医疗器械有限公司 | The molten syringe of a kind of pin type secondary filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310457A (en) * | 2015-06-23 | 2017-01-11 | 上海振浦医疗设备有限公司 | Disposable precision filter syringe and manufacturing method thereof |
| CN111558114A (en) * | 2020-04-07 | 2020-08-21 | 青岛奥利普自动化控制***有限公司 | Liquid medicine filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104546459A (en) | Needle type syringe with function of accurately filtering dissolved drug | |
| CN103721321B (en) | A kind of automatic fitration syringe | |
| CN204446607U (en) | The molten syringe of a kind of pin type secondary filter | |
| US10667657B2 (en) | Stool drain assembly | |
| CN103721322A (en) | Filtering syringe | |
| CN205268756U (en) | Injector | |
| CN103736174B (en) | A kind of two-way filtration syringe | |
| CN204050536U (en) | Syringe | |
| CN204446606U (en) | The molten syringe of a kind of pin type secondary filter | |
| CN104524670A (en) | Needle type precise filtering and medicine dissolving syringe | |
| RU2698057C1 (en) | Filtering syringe | |
| CN203971078U (en) | A kind of dual pathways entry needle | |
| CN203329134U (en) | Disposable security contamination prevention injection syringe | |
| CN203694266U (en) | Automatic filtering injector | |
| CN204017144U (en) | A kind of calparine cap with anti-pollution isolating function | |
| CN106237453A (en) | A kind of syringe filter and syringe | |
| CN110997045B (en) | Anti-infection double-needle injector | |
| CN203694267U (en) | Filtration injector | |
| CN209392391U (en) | A kind of dispenser | |
| CN204033779U (en) | Automatic imbibition and fluid injection pipeline and assembly thereof | |
| CN205108698U (en) | Cardiac surgery syringe | |
| CN201978257U (en) | Transfusion needle protection device for vein transfusion device | |
| CN106913935A (en) | Injector for medical purpose with separation function | |
| CN204337401U (en) | A kind of disposable transfusion device with safe easily puncture needle and accurate filter | |
| CN202270167U (en) | A one-off air-passing type medicine dissolving needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |