CN202478178U - Push device for pre-assembled drug feeder - Google Patents
Push device for pre-assembled drug feeder Download PDFInfo
- Publication number
- CN202478178U CN202478178U CN2012201421112U CN201220142111U CN202478178U CN 202478178 U CN202478178 U CN 202478178U CN 2012201421112 U CN2012201421112 U CN 2012201421112U CN 201220142111 U CN201220142111 U CN 201220142111U CN 202478178 U CN202478178 U CN 202478178U
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- CN
- China
- Prior art keywords
- rotary sleeve
- cartridge case
- push rod
- drug feeding
- drug
- 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)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model discloses a push device for a pre-assembled drug feeder. The push device comprises a drug feeding cylinder, a rotating sleeve and a push rod, guide grooves are axially arranged on the inner top wall of the drug feeding cylinder, one end of the rotating sleeve extends into the drug feeding cylinder while the other end of the rotating sleeve is a sealing end, guide spiral through grooves are arranged on the circumferential wall of the rotating sleeve, the push rod is axially arranged in the rotating sleeve, and guide blocks penetrating through the guide spiral through grooves and extending into the guide grooves are arranged on the push rod. When the push device is used, a drug container and a drug feeding needle pair are at the sealed state by the aid of a diaphragm in a connector and the rotating sleeve with the sealed top end, so that absolute asepsis in transport and storage can be achieved. The rotating sleeve is rotated to drive the push rod to rapidly move down along the guide grooves to push the drug container, an upper needle tip of the drug feeding needle pair pierces a seal plug on the drug container while a lower needle tip of the drug feeding needle pair pierces the diaphragm in the connector to enable the drug container to be communicated with an infusion container instantly, and the whole process is in aseptic butting. Therefore, the whole process including transport, storage, butting, drug mixing and infusion is aseptic and hermetic.
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 can dock, mix the thrust unit that uses on the airtight 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 prepackage type drug feeding device comprises adding cartridge case, rotary sleeve and push rod; A said end that adds cartridge case is the interface link, is provided with gathering sill vertically at the other end inwall that adds cartridge case; One end of said rotary sleeve puts in the other end that adds cartridge case and is sealed and matched with adding cartridge case axial restraint, radially rotatable cooperation the, and rotary sleeve and add cartridge case, and said rotary sleeve is provided with the spiral groove that leads along its circle wall; Said push rod is axially disposed within the rotary sleeve along rotary sleeve, on the outer wall of push rod, is provided with guide pad, and said guide pad passes guiding spiral groove and puts in the gathering sill.
As a kind of preferred version of this utility model, the other end of said rotary sleeve is a sealed end.
Another kind of preferred version as this utility model; The said inwall that adds the other end of cartridge case is arranged with two gathering sills that are provided with vertically; Said rotary sleeve is symmetrical set two guiding spiral grooves along its circle wall; Be arranged with two guide pads on the outer wall of said push rod, one of them guide pad passes a guiding spiral groove and puts in the gathering sill, and another guide pad passes another guiding spiral groove and puts in another gathering sill.
As another preferred version of this utility model, the outer wall of said rotary sleeve is along being circumferentially with pressure ring, and said pressure ring is pressed on the other end that adds cartridge case and with it and is sealed and matched.
As a kind of improvement project of this utility model, said pressure ring is sealed and matched through the sealing ring and the other end that adds cartridge case.
As the another kind of improvement project of this utility model, said push rod is arranged in the rotary sleeve along the axis of rotary sleeve.
As another improvement project of this utility model, the sealed end of said rotary sleeve is provided with suspension ring.
The beneficial effect of this utility model is: when using the thrust unit that uses on this prepackage type drug feeding device; 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, rotary sleeve is installed in adds on the cartridge case again, the rotary sleeve through barrier film in the interface and end sealing makes medicament reservoir and dosing crosspointer be in sealing state; Therefore, can reach the transportation and store absolute aseptic.When mixing medicine; Rotate rotary sleeve driving push rod and move down rapidly, press on the medicament reservoir, and then promotion dosing crosspointer moves down along the gathering sill that adds on the cartridge case inwall; 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 prepackage type drug feeding device.
Description of drawings
Fig. 1 is the structural representation of the thrust unit that uses on the prepackage type drug feeding device;
Fig. 2 is the cross-sectional view that adds cartridge case;
Fig. 3 is the front view of rotary sleeve;
Fig. 4 is along the cross section view of A-A direction among Fig. 3;
Fig. 5 is the cross-sectional view of push rod;
Fig. 6 is the perspective view of push rod;
Fig. 7 for the thrust unit seam used on the prepackage type drug feeding device on infusion vessel and be in the structural representation before using;
Fig. 8 for the thrust unit seam used on the prepackage type drug feeding device at the structural representation on the infusion vessel and after being in use.
In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 4-rotary sleeve; 5-push rod; 6-interface link; 7-guiding spiral groove; 8-gathering sill; 9-guide pad; 10-pressure ring; 11-sealing ring; 12-annular rubber cushion; 13-suspension ring; 14-infusion vessel; 15-crosspointer supporting seat; 16-anti-slide fastener; 17-medicament reservoir; 18-annular snap; 19-annular groove; 20-annular slot; 21-passage; 22-interface; 23-barrier film 9.
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 prepackage type drug feeding device comprises adding cartridge case 1, rotary sleeve 4 and push rod 5.
Wherein, the structure that adds cartridge case is as shown in Figure 2, and the bottom that adds cartridge case 1 is an interface link 6, and the inwall of interface link 6 is a throat structure, is more conducive to the interface size coupling with infusion vessel 14 (being transfusion flexible bag or soft transfusion bottle) like this.Add the inwall of cartridge case 1 and be provided with annular rubber cushion 12 near interface link 6; Be located at when adding in the cartridge case 1 at dosing crosspointer 2 (the dosing crosspointer 2 of present embodiment adopts the cross pins); The following needle point of dosing crosspointer 2 passes annular rubber cushion 12 and is stuck on the annular rubber cushion 12, and the crosspointer supporting seat 15 of dosing crosspointer 2 is positioned at the top of annular rubber cushion 12.On the inwall that adds cartridge case 1, be symmetrically arranged with at least two and be barb-like anti-slide fastener 16 (in the present embodiment; On the inwall that adds cartridge case 1, be provided with four anti-slide fasteners); Medicament reservoir 17 pack into add in the cartridge case 1 after, when medicament reservoir 17 mixed medicine with infusion vessel 14, the bottle cap of medicament reservoir 17 was stuck in the below of anti-slide fastener 16; Should can stop medicament reservoir 17 to be retreated effectively by anti-slide fastener 16, ensure that mixing medicine carried out smoothly.The top inner wall that adds cartridge case 1 is provided with gathering sill 8 vertically, and in the present embodiment, the inwall that adds cartridge case 1 is arranged with two gathering sills 8 that are provided with vertically.Along being circumferentially with annular snap 18, on the top end face that adds cartridge case 1, along the circumferential direction be provided with annular groove 19 at the inwall top that adds cartridge case 1.
The structure of rotary sleeve 4 such as Fig. 3 and shown in Figure 4, the bottom of rotary sleeve 4 puts in from the top that adds cartridge case 1 and adds in the cartridge case 1 and be sealed and matched with adding cartridge case 1 axial restraint, radially rotatable cooperation the, and rotary sleeve 4 and add cartridge case 1, and the top of rotary sleeve 4 is a sealed end.In the present embodiment, be circumferentially with pressure ring 10 on the outer wall edge of rotary sleeve 4, the edge is circumferentially with annular slot 20 below pressure ring 10.When rotary sleeve 4 be installed in add on the cartridge case 1 after, annular snap 18 is positioned at annular slot 20, and sealing ring 11 is installed in annular groove 19, pressure ring 10 is pressed on the top that adds cartridge case 1 and with it through sealing ring 11 and is sealed and matched.When rotating rotary sleeve 4, annular snap 18 is rotated in annular slot 20, because of the sealing function of sealing ring 11, makes rotary sleeve 4 both rotatable in adding cartridge case 1, can realize the outer wall and the top seal that adds cartridge case 1 of rotary sleeve 4 again.Rotary sleeve 4 is provided with guiding spiral groove 7 (in the present embodiment, rotary sleeve 4 is symmetrical set two guiding spiral grooves 7 along its circle wall) along its circle wall.
The structure of push rod 5 such as Fig. 5 and shown in Figure 6, push rod 5 is axially disposed within the rotary sleeve 4 along rotary sleeve 4, and push rod 5 is the hollow structure of open upper end, lower end sealing, and the hollow structure that push rod 5 formation top diameter of bores are big, the bottom diameter of bore is little.On the base wall of top endoporus, be evenly equipped with the passage 21 that is provided with vertically, when push rod 5 moved down process, this passage 21 helped the gas flow upper space in the lower space, reduced the air drag that push rod 5 moves down.On the outer wall of push rod 5, be arranged with two guide pads 9, one of them guide pad 9 passes a guiding spiral groove 7 and puts in the gathering sill 8, and another guide pad 9 passes another guiding spiral groove 7 and puts in another gathering sill 8.Push rod 5 is arranged in the rotary sleeve 4 along the axis of rotary sleeve 4; The last needle point of dosing crosspointer 2 is corresponding with push rod 5; Medicament reservoir 17 be placed on add in the cartridge case 1 after; The bottom of push rod 5 is corresponding with the center, top of medicament reservoir 17, the last needle point of dosing crosspointer 2 and the bottle cap of medicament reservoir 17 corresponding (as shown in Figure 7).
(being the top of rotary sleeve 4) is provided with suspension ring 13 on the sealed end of rotary sleeve 4, can be suspended on the used bracing frame of transfusion with this drug feeding device and with the infusion vessel 14 (as shown in Figure 7) that drug feeding device connects through these suspension ring 13.
During the assembling of the thrust unit that uses on this prepackage type drug feeding device and infusion vessel, interface link 6 seam that at first will add cartridge case 1 are placed on dosing crosspointer 2 and medicament reservoir 17 and add in the cartridge case 1 on the interface on the infusion vessel 14 22; Again push rod 5 is installed in the rotary sleeve 4; And make the guide pad 9 on the push rod 5 pass the guiding spiral groove 7 on the rotary sleeve 4; At last that the guide pad on the push rod 59 is corresponding with gathering sill 8 on adding cartridge case 1, with rotary sleeve 4 be installed in add on the cartridge case 1 after, guide pad 9 puts in the gathering sill 8.
When using the thrust unit that uses on this prepackage type drug feeding device; To add the interface link 6 of cartridge case 1 and interface 22 sealed butt joint (can adopt the mode of seam, also can adopt the mode that is threaded) on the infusion vessel 14 earlier, in the present embodiment; Infusion vessel 14 adopts transfusion flexible bag; As shown in Figure 7, dosing crosspointer 2 and medicament reservoir 17 be pre-loaded under aseptic condition add in the cartridge case 1, the rotary sleeve 4 through barrier film in the interface 22 23 and end sealing makes medicament reservoir 17 and dosing crosspointer 2 be in sealing state; Therefore, can reach the transportation and store absolute aseptic.When mixing medicine, rotate rotary sleeve 4, rotary sleeve 4 drives push rod 5 and moves down rapidly along the gathering sill 8 that adds on cartridge case 1 inwall; Directly press on the medicament reservoir 17; And then promote dosing crosspointer 2 and move down, the last needle point of dosing crosspointer 2 pierces through the sealing-plug on the medicament reservoir 17, and the following needle point of dosing crosspointer 2 punctures the interior barrier film 23 of interface 22; Make that moment is communicated with in medicament reservoir 17 and the transfusion flexible bag; As shown in Figure 8, whole process all is in aseptic butt joint, and whole process all moves down realization through rotating rotary sleeve 4 driving push rods 5.And push rod 5 moves down and need rotate and could realize by dependence rotary sleeve 4, so can prevent that in transportation and storing, push rod 5 is oppressed infusion vessels.When medicament reservoir 17 was pushed to bottle cap and is positioned at the below of anti-slide fastener 16, this anti-slide fastener 16 stoped medicament reservoir 17 to be retreated effectively, ensures that mixing medicine carries out smoothly.Because the thrust unit that uses on this 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 (7)
1. the thrust unit that uses on the prepackage type drug feeding device is characterized in that: comprise adding cartridge case (1), rotary sleeve (4) and push rod (5); A said end that adds cartridge case (1) is interface link (6), is provided with gathering sill (8) vertically at the other end inwall that adds cartridge case (1); One end of said rotary sleeve (4) put in the other end that adds cartridge case (1) and with add cartridge case (1) axial restraint, rotatable cooperation radially; And rotary sleeve (4) with add cartridge case (1) and be sealed and matched, said rotary sleeve (4) is provided with guiding spiral groove (7) along its circle wall; Said push rod (5) is axially disposed within the rotary sleeve (4) along rotary sleeve (4), on the outer wall of push rod (5), is provided with guide pad (9), and said guide pad (9) passes guiding spiral groove (7) and puts in the gathering sill (8).
2. the thrust unit that uses on the prepackage type drug feeding device according to claim 1 is characterized in that: the other end of said rotary sleeve (4) is a sealed end.
3. the thrust unit that uses on the prepackage type drug feeding device according to claim 1 and 2; It is characterized in that: the said inwall that adds the other end of cartridge case (1) is arranged with two gathering sills (8) that are provided with vertically; Said rotary sleeve (4) is symmetrical set two guiding spiral grooves (7) along its circle wall; Be arranged with two guide pads (9) on the outer wall of said push rod (5); One of them guide pad (9) passes a guiding spiral groove (7) and puts in the gathering sill (8), and another guide pad (9) passes another guiding spiral groove (7) and puts in another gathering sill (8).
4. the thrust unit that uses on the prepackage type drug feeding device according to claim 3 is characterized in that: the outer wall of said rotary sleeve (4) is along being circumferentially with pressure ring (10), and said pressure ring (10) is pressed on the other end that adds cartridge case (1) and with it and is sealed and matched.
5. the thrust unit that uses on the prepackage type drug feeding device according to claim 4 is characterized in that: said pressure ring (10) is sealed and matched through the sealing ring (11) and the other end that adds cartridge case (1).
6. the thrust unit that uses on the prepackage type drug feeding device according to claim 5 is characterized in that: said push rod (5) is arranged in the rotary sleeve (4) along the axis of rotary sleeve (4).
7. the thrust unit that uses on the prepackage type drug feeding device according to claim 6 is characterized in that: the sealed end of said rotary sleeve (4) is provided with suspension ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201421112U CN202478178U (en) | 2012-04-06 | 2012-04-06 | Push device for pre-assembled drug feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201421112U CN202478178U (en) | 2012-04-06 | 2012-04-06 | Push device for pre-assembled drug feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202478178U true CN202478178U (en) | 2012-10-10 |
Family
ID=46952644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201421112U Expired - Lifetime CN202478178U (en) | 2012-04-06 | 2012-04-06 | Push device for pre-assembled drug feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202478178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716037A (en) * | 2012-04-06 | 2012-10-10 | 重庆莱美药业股份有限公司 | Push device used on preassembly medicating instrument |
-
2012
- 2012-04-06 CN CN2012201421112U patent/CN202478178U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716037A (en) * | 2012-04-06 | 2012-10-10 | 重庆莱美药业股份有限公司 | Push device used on preassembly medicating instrument |
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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: 20121010 |