CN202459353U - Sealing device for thread thrust preloaded doser - Google Patents
Sealing device for thread thrust preloaded doser Download PDFInfo
- Publication number
- CN202459353U CN202459353U CN2012201225189U CN201220122518U CN202459353U CN 202459353 U CN202459353 U CN 202459353U CN 2012201225189 U CN2012201225189 U CN 2012201225189U CN 201220122518 U CN201220122518 U CN 201220122518U CN 202459353 U CN202459353 U CN 202459353U
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- CN
- China
- Prior art keywords
- cartridge case
- sealing
- dosing
- diaphragm seal
- sealing device
- 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.)
- Expired - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a sealing device for a thread thrust preloaded doser. The sealing device comprises a dosing cylinder. A port connecting end is disposed at one end of the dosing cylinder. A guide groove is axially disposed at the other end of the dosing cylinder. A sealing film near the guide groove is disposed on a cross section of the inner wall of the dosing cylinder. When the doser is used, a drug container and double dosing needles are preloaded into the dosing cylinder. The drug container and the double dosing needles are sealed through a partition film in the port and the sealing film in the dosing cylinder. Absolute asepsis in transportation and storage is achieved. When drug mixing is performed, the drug container and the double dosing needles are pushed through a pressing rod, a sealing plug on the drug container is pierced by an upper needle tip, the partition film is pierced by a lower needle tip, and the drug container is communicated with an infusion container instantly and aseptically. Accordingly, aseptic sealing during a whole process including transportation, storage, connection, drug mixing and infusion is achieved.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to the sealing device that uses on a kind of drug feeding device.
Background technology
For the medicine in the medicament reservoir is added in the solution in the infusion vessel (being transfusion flexible bag or soft transfusion bottle), then mixed solution is imported such as the patient in the clinical mechanism of hospital.In the prior art, often adopt drug feeding device that medicament reservoir is connected with transfusion flexible bag or soft transfusion bottle.
Drug feeding device of the prior art mainly comprises and adds cartridge case and dosing crosspointer; The dosing tube forms cup-like structure, and the dosing crosspointer is stuck in through the crosspointer supporting seat and adds in the cartridge case, in order to seal mixing the medicine passage; Be provided with barrier film adding on the bottom interior wall cross section of cartridge case; Top adding cartridge case is provided with diaphragm seal, and a needle point of dosing crosspointer is corresponding with barrier film, and another needle point of dosing crosspointer is corresponding with the diaphragm seal of top.During use; This is added cartridge case dock, tear the diaphragm seal that adds on the cartridge case top, medicament reservoir is snapped in add in the cartridge case again with the interface of transfusion flexible bag or soft transfusion bottle; Also promoting the dosing crosspointer when medicament reservoir snaps in moves down; The last needle point of dosing crosspointer pierces through the sealing-plug on the medicament reservoir, the broken barrier film of the following acupuncture of dosing crosspointer and pierce through transfusion flexible bag or soft transfusion bottle on interface on sealing-plug, extruding transfusion flexible bag or soft transfusion bottle just can realize mixing medicine.
Adopt the drug feeding device of said structure, mainly in mixed medicine process have a following deficiency: snap in when adding in the cartridge case at medicament reservoir, must add the diaphragm seal on the cartridge case top by tear initiation, and add cartridge case when snapping in and to contact with the external world, and then pollute.And all closed drug feeding devices that occur in the prior art all can only be implemented in and mix the airtight of medicine process, and can not realize cillin bottle and drug feeding device dock, mix medicine and " overall process is sterile closed " when infusing.
The utility model content
To the above-mentioned deficiency that exists in the prior art, this utility model provides a kind of can advance the sealing device that uses on the prepackage type drug feeding device at butt joint under the integral asepsis state, mixed medicine and the airtight screw thread of transfusion overall process.
In order to solve the problems of the technologies described above, this utility model has adopted following technical scheme:
Screw thread advances the sealing device that uses on the prepackage type drug feeding device; Comprise adding cartridge case, a said end that adds cartridge case is the interface link, and the other end that adds cartridge case is provided with gathering sill vertically; Be provided with diaphragm seal adding on the cross section of inboard wall of cartridge case, said diaphragm seal is near gathering sill.
As a kind of preferred version of this utility model, the middle part of said diaphragm seal is the position that is prone to expose.
As the another kind of preferred version of this utility model, said diaphragm seal is a sealing elastomeric membrane.
As another preferred version of this utility model, said diaphragm seal is with to add cartridge case one-body molded.
The beneficial effect of this utility model is: when using this screw thread to advance the sealing device that uses on the prepackage type drug feeding device; Earlier medicament reservoir and dosing crosspointer are pre-loaded into and add in the cartridge case; To add cartridge case and dock (can adopt seam) with interface on transfusion flexible bag or the soft transfusion bottle; Make medicament reservoir and dosing crosspointer be in sealing state through barrier film in the interface and the diaphragm seal that adds in the cartridge case, therefore, can reach transportation and store absolute aseptic.When mixing medicine; Depression bar the moment of exerting pressure through diaphragm seal or make diaphragm seal produce deformation to promote medicament reservoir and move down; And then promote the dosing crosspointer and move down, when the last needle point of dosing crosspointer pierced through the sealing-plug on the medicament reservoir, the following needle point of dosing crosspointer punctured the interior barrier film of interface; Make that moment is communicated with in medicament reservoir and transfusion flexible bag or the soft transfusion bottle; Whole process all is in aseptic butt joint, and therefore, it is sterile closed that this screw thread advances the sealing device that uses on prepackage type drug feeding device can realize transporting, store, dock, mix the overall process of medicine and transfusion.
Description of drawings
Fig. 1 advances the structural representation of the sealing device that uses on the prepackage type drug feeding device for screw thread;
Fig. 2 advances the structural representation of sealing device seam on infusion vessel that uses on the prepackage type drug feeding device for screw thread.
In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 3-medicament reservoir; 5-rotary sleeve; 6-interface link; 7-crosspointer supporting seat; 8-diaphragm seal; 9-depression bar; 11-gathering sill; 12-infusion vessel; 13-interface; 14-barrier film; 15-guide pad; 16-internal thread hole.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment this utility model is done to describe in further detail.
As shown in Figure 1, screw thread advances the sealing device that uses on the prepackage type drug feeding device, comprises adding cartridge case 1; The bottom that adds cartridge case 1 is an interface link 6; The top that adds cartridge case 1 is provided with gathering sill 11 vertically, on the cross section of inboard wall that adds cartridge case 1, is provided with diaphragm seal 8, and diaphragm seal 8 is near gathering sill 11.Sealing film 8 with add cartridge case 1 can be one-body molded to reduce processing technology, also can with diaphragm seal 8 with add cartridge case 1 and make separately after, again diaphragm seal 8 is fixedly installed on the cross section that adds in the cartridge case 1.
The position (as being set to thin film) that is prone to expose can be adopted in the middle part of sealing film 8, after depression bar 9 presses on the sealing film, at first exposes the middle part of sealing film, directly presses on then on the infusion vessel 12, and is as shown in Figure 2.Certainly, diaphragm seal 8 also can adopt sealing elastomeric membrane, infusion vessel 12 be pre-loaded into add in the cartridge case 1 after, depression bar 9 presses on the infusion vessel 12 through the sealing elastica.Depression bar 9 is along the axis setting that adds cartridge case 1, and when rotary sleeve 5 rotated on adding cartridge case 1, depression bar 9 can more help exposing diaphragm seal 8 over against the positive middle part of diaphragm seal 8.
When this screw thread advances the sealing device that uses on prepackage type drug feeding device to assemble with infusion vessel, at first medicament reservoir 3 is placed on and adds in the cartridge case 1; Dosing crosspointer 2 is snapped in again and add in the cartridge case 1, dosing crosspointer 2 is fixed through crosspointer supporting seat 7 and the friction that adds between cartridge case 1 inwall; Interface link 6 seam that will add cartridge case 1 then are on the interface on the infusion vessel 12 13; Top with depression bar 9 screws in the internal thread hole 16 of rotary sleeve 5 at last, and two guide pads 15 on the depression bar 9 are corresponding with gathering sill 11 respectively, rotary sleeve 5 are fastened on the top that adds cartridge case 1.
When using this screw thread to advance the sealing device that uses on the prepackage type drug feeding device; Elder generation is pre-loaded into medicament reservoir 3 and dosing crosspointer 2 and adds in the cartridge case 1 under aseptic condition, will add interface 13 sealed butt joint (can adopt the mode of seam, also can adopt the mode that is threaded) of the interface link and the infusion vessel 12 of cartridge case 1 again; In the present embodiment; Infusion vessel 12 adopts transfusion flexible bag, and is as shown in Figure 2, makes medicament reservoir 3 and dosing crosspointer 2 be in sealing state through barrier film in the interface 13 14 and the diaphragm seal 8 that adds in the cartridge case 1; Therefore, can reach the transportation and store absolute aseptic.When mixing medicine; Rotate rotary sleeve 5, rotary sleeve 5 drives depression bar 9 and moves down and expose the middle part of diaphragm seal 8 or make diaphragm seal produce deformation along adding cartridge case 1, presses on the medicament reservoir 3; And promotion dosing crosspointer 2 moves down; When the last needle point of dosing crosspointer 2 pierced through the sealing-plug on the medicament reservoir 3, the following needle point of dosing crosspointer 2 punctured the barrier film 14 in the interface 13, and medicament reservoir 3 and transfusion flexible bag interior moment is communicated with; Whole process all is in aseptic butt joint, and whole process all drives depression bar 9 downward precessions realizations through rotating rotary sleeve 5.And rotary sleeve 5 and depression bar 9 be through threaded engagement, mix depression bar 9 before the medicine be positioned at diaphragm seal above, when mixing medicine, need rotate rotary sleeve 5 and could realize that depression bar 9 moves down, so can prevent in transportation and storage depression bar breakseal film or oppress infusion vessel.Because this screw thread advances the sealing device that uses on the prepackage type drug feeding device after being pre-loaded into medicament reservoir, to accomplish until transfusion; Related medicament reservoir with all be in aseptic condition with parts that medicine directly contacts; Therefore, can realize that medicine is sterile closed in the overall process of transportation, storage, butt joint, mixed medicine and transfusion.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation this utility model; Although with reference to preferred embodiment this utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of this utility model; And not breaking away from the aim and the scope of this utility model technical scheme, it all should be encompassed in the middle of the claim scope of this utility model.
Claims (4)
1. screw thread advances the sealing device that uses on the prepackage type drug feeding device; It is characterized in that: comprise adding cartridge case (1); A said end that adds cartridge case (1) is interface link (6); The other end that adds cartridge case (1) is provided with gathering sill (11) vertically, on the cross section of inboard wall that adds cartridge case (1), is provided with diaphragm seal (8), and said diaphragm seal (8) is near gathering sill (11).
2. screw thread according to claim 1 advances the sealing device that uses on the prepackage type drug feeding device, and it is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.
3. screw thread according to claim 1 advances the sealing device that uses on the prepackage type drug feeding device, and it is characterized in that: said diaphragm seal is a sealing elastomeric membrane.
4. advance the sealing device that uses on the prepackage type drug feeding device according to the described screw thread of each claim in the claim 1 to 3, it is characterized in that: said diaphragm seal (8) and to add cartridge case (1) one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201225189U CN202459353U (en) | 2012-03-28 | 2012-03-28 | Sealing device for thread thrust preloaded doser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201225189U CN202459353U (en) | 2012-03-28 | 2012-03-28 | Sealing device for thread thrust preloaded doser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459353U true CN202459353U (en) | 2012-10-03 |
Family
ID=46907557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201225189U Expired - Lifetime CN202459353U (en) | 2012-03-28 | 2012-03-28 | Sealing device for thread thrust preloaded doser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202459353U (en) |
-
2012
- 2012-03-28 CN CN2012201225189U patent/CN202459353U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |