CN202459347U - Sealing inner sleeve and sealing device for whole-process screw-in doser - Google Patents
Sealing inner sleeve and sealing device for whole-process screw-in doser Download PDFInfo
- Publication number
- CN202459347U CN202459347U CN2012201001135U CN201220100113U CN202459347U CN 202459347 U CN202459347 U CN 202459347U CN 2012201001135 U CN2012201001135 U CN 2012201001135U CN 201220100113 U CN201220100113 U CN 201220100113U CN 202459347 U CN202459347 U CN 202459347U
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- CN
- China
- Prior art keywords
- sealing
- cartridge case
- screw thread
- cover
- feeding device
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- 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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Abstract
The utility model discloses a sealing inner sleeve for a whole-process screw-in doser. A sealing film is arranged on the cross section of the inner wall of the inner sleeve. The utility model also discloses a sealing device with the sealing inner sleeve; the sealing device also comprises a dosing cylinder; and one end of the inner sleeve is in sealed butt joint with a port of the dosing cylinder. When the sealing device is in use, an connector connection end of the dosing cylinder is in butt joint with a connector on a medicine container; a dosing double-needle and the medicine container are pre-arranged in the dosing cylinder; the inner sleeve and the dosing cylinder are welded together; and the medicine container and the dosing double-needle are in a sealed state through a membrane in the connector and the sealing film. In medicine mixing, the medicine container and the dosing double-needle are pushed to move downwards by the pressure rod; the upper needle point of the dosing double-needle punctures a sealing plug on the medicine container, and the lower needle point pierces the membrane in the connector so that the medicine container and the transfusion container are communicated instantly; the whole process is in a sterile butt joint manner; and therefore, the sealing inner sleeve and the sealing device can realize sterile sealing of the medicine in the whole process from transportation, storage, butt joint, mixing and transfusion.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to cover and sealing device in the sealing of using 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 the interface of soft transfusion bottle 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, it is a kind of with after the interface of infusion vessel is connected that this utility model provides, and can under the integral asepsis state, dock, mix in the sealing of using on the airtight omnidistance screw thread precession drug feeding device of medicine and transfusion overall process and overlap.
Simultaneously, it is a kind of with after the interface of infusion vessel is connected that this utility model also provides, can be in butt joint under the integral asepsis state, mix the sealing device that uses on the airtight omnidistance screw thread precession drug feeding device of medicine and transfusion overall process.
In order to solve the problems of the technologies described above, this utility model has adopted following technical scheme:
Cover in the sealing of using on the omnidistance screw thread precession drug feeding device, the cross section of inboard wall that in this, overlaps is provided with a diaphragm seal.
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.
The sealing device that uses on the omnidistance screw thread precession drug feeding device comprises adding cover in cartridge case and the above-mentioned described sealing; A said end that adds cartridge case is the interface link, said in cover or the outer wall that adds cartridge case external screw thread is set, an end of interior cover and the other end sealed butt joint that adds cartridge case.
As a kind of preferred version of this utility model, be arranged with at least two elasticity cards that are used to support medicament reservoir on the said inwall that adds cartridge case.
As the another kind of preferred version of this utility model, said in cover or the external screw thread that adds cartridge case be provided with the zigzag of falling that prevents reverse rotation and end card.
As another improvement project of this utility model, the said interface link that adds cartridge case forms a throat structure.
The beneficial effect of this utility model is: use when overlapping in the sealing of using on this whole process screw thread precession drug feeding device; In cover need and add cartridge case and be used; To add the interface link of cartridge case earlier and dock (can adopt seam) with interface on transfusion flexible bag or the soft transfusion bottle; Dosing crosspointer and medicament reservoir be pre-loaded into add in the cartridge case; Through the barrier film in the interface with in the diaphragm seal that puts make medicament reservoir and dosing crosspointer be in sealing state, thereby make medicament reservoir in transportation and storage, be in aseptic condition.When mixing medicine; Promote medicament reservoir downwards through depression bar; 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; The all aseptic butt joint of whole process, therefore, in the sealing of using on this whole process screw thread precession drug feeding device cover and sealing device can realize medicine transportation, storage, butt joint, mix medicine and transfusion overall process sterile closed.
Description of drawings
Fig. 1 is the structural representation of the sealing device that uses on the omnidistance screw thread precession drug feeding device;
Sealing device seam the structural representation on infusion vessel of Fig. 2 for using on the omnidistance screw thread precession drug feeding device.
In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 3-medicament reservoir; 4-interior cover; 5-overcoat; 6-interface link; 7-crosspointer supporting seat; 8-diaphragm seal; 9-depression bar; 10-elasticity card; 11-the zigzag of falling is ended card; 12-infusion vessel; 13-interface; 14-barrier film.
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, cover in the sealing of using on the omnidistance screw thread precession drug feeding device, the cross section of inboard wall of cover 4 is provided with a diaphragm seal 8 in this.And the sealing device that uses on the omnidistance screw thread precession drug feeding device comprises adding cartridge case 1 and interior cover 4.An end that adds cartridge case 1 is an interface link 6, and interior cover 4 or the outer wall that adds cartridge case 1 are provided with external screw thread, an end of interior cover 4 and the other end seam that adds 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 the infusion vessel 12 then.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.
In the present embodiment, the outer wall of interior cover 4 is provided with external screw thread, and with the inwall of interior cover 4 matching used overcoats 5 female thread is set, overcoat 5 through the threaded engagement rotation set on interior cover 4.On the axis direction in its external sleeve 5 depression bar 9 is set, depression bar 9 is corresponding with diaphragm seal 8.The external screw thread of interior cover 4 is provided with the zigzag of falling that prevents reverse rotation and only blocks 11; Also be provided with the zigzag of falling that prevents reverse rotation on the female thread of its external sleeve 5 and only block 11; Its external sleeve 5 rotation sets are after on the interior cover 4; Only block 11 and on reverse, have barrier effect because of falling zigzag, overcoat 5 can only be rotated down along interior cover 4, promptly guaranteed can not move backward at mixed medicine process Chinese medicine container 3.If external screw thread is arranged on the outer wall that adds cartridge case 1; Then overcoat 5 is adding on the cartridge case 1 through the threaded engagement rotation set; Rotary sleeve 5 can realize that equally depression bar 9 moves down; Only block 11 need and be arranged on the external screw thread that adds cartridge case 1 and fall zigzag, equally also can arrive and on reverse, have barrier effect, guarantee can not move backward at mixed medicine process Chinese medicine container 3.
The interface link 6 that adds cartridge case 1 forms a throat structure, is more conducive to the interface size coupling with infusion vessel (being transfusion flexible bag or soft transfusion bottle) like this.
When sealing device and infusion vessel assembling, interface link 6 seam that at first will add cartridge case 1 are on the interface on the infusion vessel 12 13; Again dosing crosspointer 2 is snapped in 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, certainly, also can support dosing crosspointer 2 through the support bar of frangible; Only need support bar is arranged on the bottom of crosspointer supporting seat 7 and supports crosspointer supporting seat 7; In the process that dosing crosspointer 2 moves down, crosspointer supporting seat 7 at first breaks support bar, and dosing crosspointer 2 just can move down smoothly; Then medicament reservoir 3 is placed on and adds in the cartridge case 1; Because of being arranged with at least two elasticity cards 10 (in the present embodiment on the inwall that adds cartridge case 1; Add on the inwall of cartridge case 1 and be arranged with four elasticity cards); Medicament reservoir 3 is supported on (being that elasticity card 10 is stuck between the bottle cap and body of medicament reservoir 3) on the elasticity card 10, makes the position relative fixed of medicament reservoir 3; And then with interior cover 4 seam on the other end that adds cartridge case 1; At last with overcoat 5 rotation sets on interior cover 4.
Use when overlapping in the sealing of using on this whole process screw thread precession drug feeding device, interior cover 4 needs be used with adding cartridge case 1, will add the interface link of cartridge case 1 and interface 13 sealed butt joint of infusion vessel 12 earlier and (can adopt the mode of seam; Also can adopt the mode that is threaded); In the present embodiment, infusion vessel 12 adopts transfusion flexible bag, and is as shown in Figure 2; Dosing crosspointer 2 and medicament reservoir 3 be pre-loaded into add in the cartridge case 1; Cover 4 in the last seam makes medicament reservoir 3 and dosing crosspointer 2 be in sealing state through the diaphragm seal 8 on barrier film in the interface 13 14 and the interior cover 4, thereby makes medicament reservoir be in aseptic condition in transportation with in storing.When mixing medicine, rotary sleeve 5, depression bar 9 moves down and exposes the middle part of diaphragm seal 8; Directly be pressed on the medicament reservoir 3; Directly promote medicament reservoir 3 and move down, and then promote dosing crosspointer 2 and move down, when the last needle point of dosing crosspointer 2 pierces through the sealing-plug on the medicament reservoir 3; The following needle point of dosing crosspointer 2 punctures the barrier film 14 in the interface 13; Make that moment is communicated with in medicament reservoir 3 and the transfusion flexible bag, whole process all belongs to aseptic butt joint, and whole process all is rotated down realization (promptly realizing omnidistance screw thread precession) through overcoat 5 on interior cover 4.Therefore, in the sealing of using on this whole process screw thread precession drug feeding device cover and sealing device can realize medicine transportation, storage, butt joint, mix medicine and transfusion overall process sterile closed.
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 (7)
1. cover in the sealing of using on the omnidistance screw thread precession drug feeding device is characterized in that: the cross section of inboard wall of cover (4) is provided with a diaphragm seal (8) in this.
2. cover in the sealing of using on the omnidistance screw thread precession drug feeding device according to claim 1, it is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.
3. cover in the sealing of using on the omnidistance screw thread precession drug feeding device according to claim 1, it is characterized in that: said diaphragm seal is a sealing elastomeric membrane.
4. the sealing device that uses on the omnidistance screw thread precession drug feeding device is characterized in that: comprise adding in cartridge case (1) and the claim 1 to 3 and overlap in the described sealing of each claim; A said end that adds cartridge case (1) is interface link (6), said in cover (4) or the outer wall that adds cartridge case (1) external screw thread is set, an end of interior cover (4) and the other end sealed butt joint that adds cartridge case (1).
5. the sealing device that uses on the omnidistance screw thread precession drug feeding device according to claim 4 is characterized in that: be arranged with at least two elasticity cards (10) that are used to support medicament reservoir (3) on the said inwall that adds cartridge case (1).
6. the sealing device that uses on the omnidistance screw thread precession drug feeding device according to claim 5 is characterized in that: cover (4) or the external screw thread that adds cartridge case (1) are provided with the zigzag of falling that prevents reverse rotation and end card (11) in said.
7. the sealing device that uses on the omnidistance screw thread precession drug feeding device according to claim 5 is characterized in that: the said interface link (6) that adds cartridge case (1) forms a throat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201001135U CN202459347U (en) | 2012-03-16 | 2012-03-16 | Sealing inner sleeve and sealing device for whole-process screw-in doser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201001135U CN202459347U (en) | 2012-03-16 | 2012-03-16 | Sealing inner sleeve and sealing device for whole-process screw-in doser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459347U true CN202459347U (en) | 2012-10-03 |
Family
ID=46907551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201001135U Expired - Lifetime CN202459347U (en) | 2012-03-16 | 2012-03-16 | Sealing inner sleeve and sealing device for whole-process screw-in doser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202459347U (en) |
-
2012
- 2012-03-16 CN CN2012201001135U patent/CN202459347U/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 |