CN202459350U - Guide sleeve and sealing device for screw-in preassembly type medicine adding device - Google Patents
Guide sleeve and sealing device for screw-in preassembly type medicine adding device Download PDFInfo
- Publication number
- CN202459350U CN202459350U CN2012201224947U CN201220122494U CN202459350U CN 202459350 U CN202459350 U CN 202459350U CN 2012201224947 U CN2012201224947 U CN 2012201224947U CN 201220122494 U CN201220122494 U CN 201220122494U CN 202459350 U CN202459350 U CN 202459350U
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- China
- Prior art keywords
- fairlead
- medicine
- sealing
- cartridge case
- screw thread
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- Expired - Lifetime
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Abstract
The utility model discloses a guide sleeve and a sealing device for a screw-in preassembly type medicine adding device. A sealing film is arranged on the cross section of the inner wall of the guide sleeve; the sealing device comprises a medicine adding barrel and the guide sleeve; one end of the medicine adding barrel is an interface connection end; and the other end of the medicine adding barrel is butted with the guide sleeve in a sealing mode. During use, a double-tip medicine adding needle and a medicine container are required to be preassembled into the medicine adding barrel, and kept in a sealing state through a diaphragm in an interface and the sealing film in the guide sleeve, so that an absolute aseptic state can be achieved during transportation and storage. During medicine mixture, the medicine container is instantly communicated with an infusion container by pushing the medicine container and the double-tip medicine adding needle through a pressing rod, piercing a sealing plug on the medicine container through an upper needle tip and piercing the diaphragm in the interface through a lower needle tip, and aseptic butt joint is realized in the whole process; and therefore, the transportation, storage, butt joint, medicine mixing and infusion processes are in an aseptic and closed state.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to the fairlead and the sealing device thereof that use 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, it is a kind of with after the interface of infusion vessel is connected that this utility model provides, can be in butt joint under the integral asepsis state, mix the fairlead that uses on the airtight screw thread precession prepackage type drug feeding device of medicine and transfusion overall process.
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 screw thread precession prepackage type drug feeding device of medicine and transfusion overall process.
In order to solve the problems of the technologies described above, first technical scheme of this utility model is following:
The fairlead that uses on the screw thread precession prepackage type drug feeding device is provided with diaphragm seal on the cross section of inboard wall of fairlead.
Further, the inwall of said fairlead is provided with gathering sill vertically.
Further, said diaphragm seal is near an end of fairlead.
In order to solve the problems of the technologies described above, second technical scheme of this utility model is following:
The sealing device that uses on the screw thread precession prepackage type drug feeding device comprises adding cartridge case and fairlead; A said end that adds cartridge case is the interface link, adds the other end and the fairlead sealed butt joint of cartridge case; On the cross section of inboard wall of fairlead, be provided with diaphragm seal.
As a kind of preferred version of this utility model, the inwall of said fairlead is provided with gathering sill vertically.
As the another kind of preferred version of this utility model, said diaphragm seal is near adding cartridge case.
As another 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 a kind of improvement project of this utility model, the said interface link that adds cartridge case is a throat structure.
As the another kind of improvement project of this utility model, the middle part of said diaphragm seal is the position that is prone to expose.
As another improvement project of this utility model, said diaphragm seal is a sealing elastomeric membrane.
The beneficial effect of this utility model is: when using the fairlead that uses on this screw thread precession prepackage type drug feeding device and sealing device thereof; To add 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, again with fairlead with add the cartridge case sealed butt joint, make medicament reservoir and dosing crosspointer be in sealing state through barrier film in the interface and the diaphragm seal in the fairlead; Therefore, can reach the transportation and store absolute aseptic.When mixing medicine; Drive depression bar and move down rapidly along fairlead, 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 pierces through the sealing-plug on the medicament reservoir; The following needle point of dosing crosspointer punctures the barrier film in the interface, and medicament reservoir and transfusion flexible bag or soft transfusion bottle interior moment are communicated with, and whole process all is in aseptic butt joint; Therefore, it is sterile closed that the overall process of medicine and transfusion can be realized transporting, stores, docks, mixed to the sealing device that uses on this screw thread precession prepackage type drug feeding device.
Description of drawings
Fig. 1 is the structural representation of the sealing device that uses on the screw thread precession prepackage type drug feeding device;
Sealing device seam the structural representation on infusion vessel of Fig. 2 for using on the screw thread precession prepackage type drug feeding device.
In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 3-medicament reservoir; 4-fairlead; 5-rotary sleeve; 6-interface link; 7-crosspointer supporting seat; 8-diaphragm seal; 9-depression bar; 10-elasticity card; 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.
The fairlead that uses on the screw thread precession prepackage type drug feeding device is provided with diaphragm seal 8 on the cross section of inboard wall of fairlead 4, as shown in Figure 1.The inwall of fairlead 4 is provided with gathering sill 11 vertically, and diaphragm seal 8 is near an end of fairlead 4.
The sealing device that uses on the screw thread precession prepackage type drug feeding device comprises adding cartridge case 1 and fairlead 4, and is as shown in Figure 1.The bottom that adds cartridge case 1 is an interface link 6, and dock with fairlead 4 bottom end seal on the top that adds cartridge case 1, and the bottom cross section of inboard wall of fairlead 4 is provided with diaphragm seal 8.
The sealing device needs to be used with dosing crosspointer 2, rotary sleeve 5 and depression bar 9, and is as shown in Figure 2.Dosing crosspointer 2 is located at through crosspointer supporting seat 7 and adds in the cartridge case 1 and can be along adding moving axially of cartridge case 1, and a needle point of dosing crosspointer 2 is corresponding with interface link 6, and another needle point of dosing crosspointer 2 is corresponding with diaphragm seal 8.Rotary sleeve 5 be enclosed within on the top of fairlead 4 and with fairlead 4 axial restraints, radially rotatablely cooperate (rotary sleeve 5 can be fastened on the top of fairlead 4 through the mode of buckle, and can on fairlead 4, rotate).Depression bar 9 is axially disposed within the fairlead 4 along fairlead 4, and rotary sleeve 5 can drive depression bar 9 and move axially along fairlead 4.
Wherein, The inwall of fairlead 4 is provided with gathering sill 11 vertically; The middle part of rotary sleeve 5 is provided with internal thread hole 16 vertically; Depression bar 9 is provided with the guide pad 15 that puts in the gathering sill 11, and the top of depression bar 9 is provided with external screw thread and screws in the internal thread hole 16 of rotary sleeve 5, and the bottom of depression bar 9 is corresponding with diaphragm seal 8.In the present embodiment, be provided with the gathering sill 11 of two symmetrical distributions, be provided with screwed hole 16, and on depression bar 9, be provided with two guide pads 15 corresponding with gathering sill 11 in the middle inside of rotary sleeve 5 at the inwall of fairlead 4.When assembling this fairlead 4, rotary sleeve 5 and depression bar 9; At first the top with depression bar 9 screws in the internal thread hole 16 of rotary sleeve 5; Then that two guide pads 15 are corresponding with two gathering sills 11 respectively, at last rotary sleeve 5 is fastened on the fairlead 4, depression bar 9 is corresponding with diaphragm seal 8.
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.Depression bar 9 is along the axis setting of fairlead 4, and when rotary sleeve 5 rotated on fairlead 4, depression bar 9 can more help exposing diaphragm seal 8 over against the positive middle part of diaphragm seal 8.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 fairlead that uses on this screw thread precession prepackage type drug feeding device and sealing device thereof 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; 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; 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 fairlead 4 seam on the top that adds cartridge case 1.
When using the fairlead that uses on this screw thread precession prepackage type drug feeding device and sealing device thereof; Interface 13 sealed butt joint (can adopt the mode of seam, also can adopt the mode that is threaded) that will add the interface link and the infusion vessel 12 of cartridge case 1 earlier are in the present embodiment; Infusion vessel 12 adopts transfusion flexible bag; As shown in Figure 2, dosing crosspointer 2 and medicament reservoir 3 be pre-loaded under aseptic condition add in the cartridge case 1, the diaphragm seal 8 through barrier film in the interface 13 14 and fairlead 4 bottoms makes medicament reservoir 3 and dosing crosspointer 2 be in sealing state; 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 fairlead 4, 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 the sealing device that uses on this screw thread precession prepackage type drug feeding device is accomplished until transfusion after being pre-loaded into medicament reservoir; 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 (10)
1. the fairlead that uses on the screw thread precession prepackage type drug feeding device is characterized in that: on the cross section of inboard wall of fairlead (4), be provided with diaphragm seal (8).
2. the fairlead that uses on the screw thread precession prepackage type drug feeding device according to claim 1, it is characterized in that: the inwall of said fairlead (4) is provided with gathering sill (11) vertically.
3. the fairlead that uses on the screw thread precession prepackage type drug feeding device according to claim 1 and 2, it is characterized in that: said diaphragm seal (8) is near an end of fairlead (4).
4. the sealing device that uses on the screw thread precession prepackage type drug feeding device is characterized in that: comprise adding cartridge case (1) and fairlead (4); A said end that adds cartridge case (1) is interface link (6), adds the other end and fairlead (4) sealed butt joint of cartridge case (1); On the cross section of inboard wall of fairlead (4), be provided with diaphragm seal (8).
5. the sealing device that uses on the screw thread precession prepackage type drug feeding device according to claim 4, it is characterized in that: the inwall of said fairlead (4) is provided with gathering sill (11) vertically.
6. the sealing device that uses on the screw thread precession prepackage type drug feeding device according to claim 4 is characterized in that: said diaphragm seal (8) is near adding cartridge case (1).
7. the sealing device that uses on the screw thread precession prepackage type 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).
8. the sealing device that uses on the screw thread precession prepackage type drug feeding device according to claim 4 is characterized in that: the said interface link (6) that adds cartridge case (1) is a throat structure.
9. according to the sealing device that uses on the described screw thread precession of each claim prepackage type drug feeding device in the claim 4 to 8, it is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.
10. according to the sealing device that uses on the described screw thread precession of each claim prepackage type drug feeding device in the claim 4 to 8, it is characterized in that: said diaphragm seal (8) is sealing elastomeric membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201224947U CN202459350U (en) | 2012-03-28 | 2012-03-28 | Guide sleeve and sealing device for screw-in preassembly type medicine adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201224947U CN202459350U (en) | 2012-03-28 | 2012-03-28 | Guide sleeve and sealing device for screw-in preassembly type medicine adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459350U true CN202459350U (en) | 2012-10-03 |
Family
ID=46907554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201224947U Expired - Lifetime CN202459350U (en) | 2012-03-28 | 2012-03-28 | Guide sleeve and sealing device for screw-in preassembly type medicine adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202459350U (en) |
-
2012
- 2012-03-28 CN CN2012201224947U patent/CN202459350U/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 |
Granted publication date: 20121003 |
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| CX01 | Expiry of patent term |