CN202459349U - Pushing device used on screw-in pre-installed type doser - Google Patents
Pushing device used on screw-in pre-installed type doser Download PDFInfo
- Publication number
- CN202459349U CN202459349U CN2012201224913U CN201220122491U CN202459349U CN 202459349 U CN202459349 U CN 202459349U CN 2012201224913 U CN2012201224913 U CN 2012201224913U CN 201220122491 U CN201220122491 U CN 201220122491U CN 202459349 U CN202459349 U CN 202459349U
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- China
- Prior art keywords
- fairlead
- pressing rod
- depression bar
- sleeve
- guiding
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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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model discloses a pushing device used on a screw-in pre-installed type doser. The pushing device comprises a guiding sleeve, a rotating sleeve and a pressing rod, wherein the rotating sleeve is sleeved at one end of the guiding sleeve, is axially fixed with the guiding sleeve, and is radially and rotationally matched with the guiding sleeve, and an internal threaded hole is formed in the middle of the rotating sleeve in an axial direction; a guiding groove is formed in the inner wall of the guiding sleeve in an axial direction; the pressing rod is arranged in the guiding sleeve, a guiding block extending into the guiding groove is arranged on the pressing rod, and external threads are arranged at one end of the pressing rod, and one end of the pressing rod is screwed into the internal threaded hole. During mixing of medicine, the rotating sleeve is rotated to drive the pressing rod to move downwards quickly along the axial direction of the guiding sleeve, the pressing rod passes through a sealing film or enables the sealing film to deform and push a medicine container to move downwards at the moment of pressure application, so as to further push double needles for dosing to move downwards; the point of an upper needle pierces a sealing plug on the medicine container, and the point of a lower needle pierces a diaphragm in an interface, so that the inner part of the medicine container is instantly communicated with that of an infusion container; and the whole process is in a sterile butting state, so that the sterile closeness of the whole process from transportation, storage, butting, medicine mixing to infusion is achieved.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to the thrust unit 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 and has added the supporting use of cartridge case, can dock, mix the thrust unit that uses on the airtight screw thread precession prepackage type drug feeding device of medicine and transfusion overall process under the integral asepsis state.
In order to solve the problems of the technologies described above, this utility model has adopted following technical scheme:
The thrust unit that uses on the screw thread precession prepackage type drug feeding device comprises fairlead, rotary sleeve and depression bar; Said rotary sleeve be enclosed within on the end of fairlead and with fairlead axial restraint, rotatable cooperation radially, the middle part of rotary sleeve is provided with internal thread hole vertically; The inwall of said fairlead is provided with gathering sill vertically, and said depression bar is arranged in the fairlead, and depression bar is provided with the guide pad that puts in the gathering sill, and an end of depression bar is provided with external screw thread and screws in the internal thread hole of rotary sleeve.
As a kind of preferred version of this utility model, the other end cross section of inboard wall of said fairlead is provided with diaphragm seal, and the other end of said depression bar is corresponding with diaphragm seal.
As the another kind of preferred version of this utility model, the middle part of said diaphragm seal is the position that is prone to expose.
As another preferred version of this utility model, said diaphragm seal is a sealing elastomeric membrane.
As a kind of improvement project of this utility model, said depression bar is along the axis setting of fairlead, and corresponding with the middle part of diaphragm seal.
The beneficial effect of this utility model is: when using the thrust unit that uses on this screw thread precession prepackage type drug feeding device; Need and add the supporting use of cartridge case; 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; Rotate rotary sleeve and drive depression bar along axially the moving down rapidly of 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 thrust unit that uses on this screw thread precession prepackage type drug feeding device.
Description of drawings
Fig. 1 is the structural representation of the thrust unit that uses on the screw thread precession prepackage type drug feeding device;
Thrust unit 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.
Thrust unit as shown in Figure 1, as to use on the screw thread precession prepackage type drug feeding device comprises fairlead 4, rotary sleeve 5 and depression bar 9.Rotary sleeve 5 be enclosed within on the top of fairlead 4 and with fairlead 4 axial restraints, rotatable cooperation radially, the middle part of rotary sleeve 5 is provided with internal thread hole 16 vertically.The inwall of fairlead 4 is provided with gathering sill 11 vertically, and depression bar 9 is arranged in the fairlead 4, and 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.
The bottom cross section of inboard wall of fairlead 4 is provided with diaphragm seal 8, and the bottom of depression bar 9 is corresponding with diaphragm seal 8.At the interface link 6 of the bottom that adds cartridge case 1 with after interface on the infusion vessel 12 docks; Dosing crosspointer 2 is located at through crosspointer supporting seat 7 adds in the cartridge case 1 and can be along adding moving axially of cartridge case 1; Medicament reservoir 3 is placed on adds cartridge case 1; The bottom of fairlead 4 is with after the top seal that adds cartridge case 1 docks, and diaphragm seal 8 makes dosing crosspointer 2 and medicament reservoir 3 be in sealing state with barrier film on the interface.
In this enforcement, rotary sleeve 5 is fastened on the top of fairlead 4 through the mode of buckle, and can on fairlead 4, rotate.Be provided with the gathering sill 11 of two symmetrical distributions at the inwall of fairlead 4, 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.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, the bottom of 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.
The thrust unit that uses on this screw thread precession prepackage type drug feeding device is when adding cartridge case and infusion vessel and assemble, and as shown in Figure 2, 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; On the inwall that adds cartridge case 1, be arranged with at least two elasticity cards 10 (in the present embodiment; 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, the top of depression bar 9 is screwed in the internal thread hole 16 of rotary sleeve 5, rotary sleeve 5 is fastened on the top of fairlead 4.
When using the thrust unit that uses on this screw thread precession prepackage type drug feeding device; 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 thrust unit 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 (5)
1. the thrust unit that uses on the screw thread precession prepackage type drug feeding device is characterized in that: comprise fairlead (4), rotary sleeve (5) and depression bar (9); Said rotary sleeve (5) be enclosed within on the end of fairlead (4) and with fairlead (4) axial restraint, rotatable cooperation radially, the middle part of rotary sleeve (5) is provided with internal thread hole (16) vertically; The inwall of said fairlead (4) is provided with gathering sill (11) vertically; Said depression bar (9) is arranged in the fairlead (4); Depression bar (9) is provided with the guide pad (15) that puts in the gathering sill (11), and an end of depression bar (9) is provided with external screw thread and screws in the internal thread hole (16) of rotary sleeve (5).
2. the thrust unit that uses on the screw thread precession prepackage type drug feeding device according to claim 1; It is characterized in that: the other end cross section of inboard wall of said fairlead (4) is provided with diaphragm seal (8), and the other end of said depression bar (9) is corresponding with diaphragm seal (8).
3. the thrust unit that uses on the screw thread precession prepackage type drug feeding device according to claim 2, it is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.
4. the thrust unit that uses on the screw thread precession prepackage type drug feeding device according to claim 2, it is characterized in that: said diaphragm seal is a sealing elastomeric membrane.
5. according to the thrust unit that uses on the described screw thread precession of each claim prepackage type drug feeding device in the claim 1 to 4, it is characterized in that: said depression bar (9) is along the axis setting of fairlead (4), and corresponding with the middle part of diaphragm seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201224913U CN202459349U (en) | 2012-03-28 | 2012-03-28 | Pushing device used on screw-in pre-installed type doser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201224913U CN202459349U (en) | 2012-03-28 | 2012-03-28 | Pushing device used on screw-in pre-installed type doser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459349U true CN202459349U (en) | 2012-10-03 |
Family
ID=46907553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201224913U Expired - Lifetime CN202459349U (en) | 2012-03-28 | 2012-03-28 | Pushing device used on screw-in pre-installed type doser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202459349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520792A (en) * | 2013-10-18 | 2014-01-22 | 重庆莱美医疗器械有限公司 | Instrument for perpendicularly assembling chemical mixer and penicillin bottle |
-
2012
- 2012-03-28 CN CN2012201224913U patent/CN202459349U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520792A (en) * | 2013-10-18 | 2014-01-22 | 重庆莱美医疗器械有限公司 | Instrument for perpendicularly assembling chemical mixer and penicillin bottle |
| CN103520792B (en) * | 2013-10-18 | 2015-06-17 | 重庆莱美医疗器械有限公司 | Instrument for perpendicularly assembling chemical mixer and penicillin bottle |
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| 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 |