CN202497451U - Pushing unit used for screw-in preassembled medicine feeder - Google Patents
Pushing unit used for screw-in preassembled medicine feeder Download PDFInfo
- Publication number
- CN202497451U CN202497451U CN2012201420919U CN201220142091U CN202497451U CN 202497451 U CN202497451 U CN 202497451U CN 2012201420919 U CN2012201420919 U CN 2012201420919U CN 201220142091 U CN201220142091 U CN 201220142091U CN 202497451 U CN202497451 U CN 202497451U
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- China
- Prior art keywords
- fairlead
- rotary sleeve
- push rod
- feeding device
- drug feeding
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Abstract
The utility model discloses a pushing unit used for a screw-in preassembled medicine feeder. The pushing unit comprises a first guide sleeve, a rotary sleeve and a push rod, wherein the first guide sleeve and the rotary sleeve are arranged coaxially to form an axial stationary fit, and the push rod axially arranged along the first guide sleeve is driven to move axially along the same by the aid of the rotary sleeve. When the pushing unit is used together with the screw-in preassembled medicine feeder, a medicine container and double medicine feeding needles are enabled to be in a sealed condition by the aids of a partition film in a connector and the rotary sleeve with one end sealed, so that the medicine can be transferred and stored in to an absolute sterile condition. By rotating the rotary sleeve, the push rod is driven to quickly move downwards along a spiral guide groove to push the medicine container, an upper needle tip is driven to puncture a sealing plug on the medicine container while a lower needle tip is driven to puncture the partition film in the connector, so that the medicine container is communicated with the inside of a transfusion container instantly, and a full process including transfer, storage, butt joint, mixing and transfusion can be finished in a sterile sealed condition.
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 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 precession prepackage type drug feeding device comprises fairlead I, rotary sleeve and push rod; Said fairlead I and rotary sleeve are coaxially set, and the fairlead I forms axial restraint with rotary sleeve and cooperates; Said push rod drives moving axially along the fairlead I along the axial setting of fairlead I and by rotary sleeve.
Further, said fairlead I is provided with gathering sill vertically.
A kind of preferred version as this utility model also comprises the fairlead II, on the said fairlead II guiding helicla flute is set; The outer wall of said push rod is provided with guide pad, and said fairlead I is positioned at the fairlead II, and guide pad passes gathering sill and inserts in the guiding helicla flute.
Further, said fairlead I and rotary sleeve are one-body molded, and said rotary sleeve forms axial restraint, radially rotatable cooperation the, and rotary sleeve and fairlead II with the fairlead II and is sealed and matched.
Further, the outer wall of said rotary sleeve is along being circumferentially with pressure ring, and said pressure ring is pressed on the other end of fairlead II and with it and is sealed and matched.
Further, the other end of said rotary sleeve is a blind end.
Another kind of preferred version as this utility model also comprises the fairlead II, on the said fairlead II guiding helicla flute is set; The outer wall of said push rod is provided with guide pad, and said fairlead II is positioned at the fairlead I, and said guide pad passes the guiding helicla flute and inserts in the gathering sill.
Further, said fairlead II and rotary sleeve are one-body molded, and said rotary sleeve forms axial restraint, radially rotatable cooperation the, and rotary sleeve and fairlead I with the fairlead I and is sealed and matched.
Further, the outer wall of said rotary sleeve is along being circumferentially with pressure ring, and said pressure ring is pressed on the other end of fairlead I and with it and is sealed and matched.
The beneficial effect of this utility model is: when using the thrust unit that uses on this precession prepackage type drug feeding device; Need and add cartridge case and be used; At first will add cartridge case and dock (can adopt seam) with interface on transfusion flexible bag or the soft transfusion bottle; Annular rubber cushion, dosing crosspointer and medicament reservoir be pre-loaded into add in the cartridge case, again with the fairlead II with add the cartridge case sealed butt joint.Rotary sleeve through barrier film in the interface and end sealing makes medicament reservoir and dosing crosspointer be in sealing state, therefore, can reach 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 guiding helicla flute on the fairlead II; 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 precession prepackage type drug feeding device.
Description of drawings
Fig. 1 is the structural representation of the thrust unit embodiment one that uses on the precession prepackage type drug feeding device;
Fig. 2 is the cross-sectional view of fairlead II;
Fig. 3 is rotary sleeve and the integrated front view of fairlead I;
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 is the cross-sectional view that adds cartridge case;
Fig. 8 is rotary sleeve and the integrated front view of fairlead II;
Fig. 9 is along the cross section view of B-B direction among Fig. 8;
Figure 10 is the cross-sectional view of fairlead I in embodiment two;
Figure 11 for the thrust unit seam used on the precession prepackage type drug feeding device on infusion vessel and be in the structural representation before using;
Figure 12 for the thrust unit seam used on the precession 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; 3-fairlead I; 4-rotary sleeve; 5-push rod; 6-interface link; 7-guiding helicla flute; 8-guide groove; 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; 24-fairlead II.
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 precession prepackage type drug feeding device comprises fairlead I 3, rotary sleeve 4 and push rod 5.Fairlead I 3 is coaxially set with rotary sleeve 4, and fairlead I 3 forms axial restraint with rotary sleeve 4 and cooperates.Push rod 5 drives along the moving axially of fairlead I 3 along the axial setting of fairlead I 3 and by rotary sleeve 4, and fairlead I 3 is provided with gathering sill 8 vertically.
The structure of thrust unit in embodiment one of using on the precession prepackage type drug feeding device sees also Fig. 1 to Fig. 6:
In the building block of the thrust unit that on precession prepackage type drug feeding device, uses; The structure of fairlead II 24 is as shown in Figure 2; (mode that can adopt seam) docked in the bottom of fairlead II 24 with the end sealing that adds cartridge case 1; The inwall of fairlead II 24 is provided with guiding helicla flute 7, in the present embodiment, is symmetrical set two guiding helicla flutes 7 on the inwall of fairlead II 24.Edge, inwall top in fairlead II 24 is circumferentially with annular snap 18, on the top end face of fairlead II 24, along the circumferential direction is provided with annular groove 19.
Structure such as Fig. 3 and shown in Figure 4 of rotary sleeve 4 and 3 cooperations of fairlead I; Fairlead I 3 is positioned at the below of rotary sleeve 4; Rotary sleeve 4 is one-body molded with fairlead I 3, and fairlead I 3 is positioned at fairlead II 24, and rotary sleeve 4 and fairlead II 24 form axial restraints, radially turn and cooperate; And rotary sleeve 4 is sealed and matched with fairlead II 24, 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.After rotary sleeve 4 was installed on the fairlead II 24, annular snap 18 was positioned at annular slot 20, and sealing ring 11 is installed in annular groove 19, and pressure ring 10 is pressed in through sealing ring 11 on the top of fairlead II 24 and with it 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 on fairlead II 24, can realize the outer wall of rotary sleeve 4 and the top seal of fairlead II 24 again.The sidewall upper edge of fairlead I 3 is axially arranged with gathering sill 8 (in the present embodiment, being arranged with two gathering sills 8 that are provided with vertically on the sidewall of fairlead I 3).
The structure of push rod 5 such as Fig. 5 and shown in Figure 6, push rod 5 is axially disposed within the fairlead I 3 along fairlead I 3, 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 gathering sill 8 and stretches in the guiding helicla flute 7, and another guide pad 9 passes another gathering sill 8 and stretches in another guiding helicla flute 7.Push rod 5 is arranged in the fairlead I 3 along the axis of fairlead I 3; 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 (shown in figure 11).
(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 (shown in figure 11) that drug feeding device connects through these suspension ring 13.
This thrust unit in use needs and adds cartridge case 1 and be used; The structure that adds cartridge case is as shown in Figure 7; The bottom that adds cartridge case 1 is an interface link 6; 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; Dosing crosspointer 2 (the dosing crosspointer 2 of present embodiment adopts the cross pin) is located at and adds in the cartridge case 1; 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 thrust unit that uses on this precession prepackage type drug feeding device (shown in figure 11) when adding cartridge case 1 with the infusion vessel assembling; Interface link 6 seam that at first will add cartridge case 1 are on the interface on the infusion vessel 14 22; Again annular rubber cushion 12, dosing crosspointer 2 and medicament reservoir 17 are placed on and add in the cartridge case 1, then with 24 seam of fairlead II on the top that adds cartridge case 1; Again push rod 5 is installed in the fairlead I 3; And make the guide pad 9 on the push rod 5 pass the gathering sill 8 on the fairlead I 3; At last that the guide pad on the push rod 59 is corresponding with guiding helicla flute 7 on the fairlead II 24; Rotary sleeve 4 is installed on the fairlead II 24, and guide pad 9 stretches in the guiding helicla flute 7.
The structure of thrust unit in embodiment two of using on the precession prepackage type drug feeding device sees also Fig. 8 to Figure 10:
Embodiment two only is with the difference of embodiment one: fairlead II 24 is positioned at fairlead I 3, and fairlead II 24 is one-body molded with rotary sleeve 4.Rotary sleeve 4 and fairlead I 3 forms axial restraints, rotatable cooperation radially; And rotary sleeve 4 is sealed and matched (in the present embodiment with fairlead I 3; Edge, inwall top in fairlead I 3 is circumferentially with annular snap 18; On the top end face of fairlead I 3, along the circumferential direction be provided with annular groove 19, after rotary sleeve 4 was installed on the fairlead I 3, annular snap 18 was positioned at annular slot 20; Sealing ring 11 is installed in annular groove 19, and pressure ring 10 is pressed in through sealing ring 11 on the top of fairlead I 3 and with it and is sealed and matched).The guide pad 9 of the outer wall setting of push rod 5 passes guiding helicla flute 7 and inserts in the gathering sill 8.
The thrust unit that uses on the precession prepackage type drug feeding device among the embodiment two is when adding cartridge case 1 with the infusion vessel assembling; Interface link 6 seam that at first will add cartridge case 1 are on the interface on the infusion vessel 14 22; Again annular rubber cushion 12, dosing crosspointer 2 and medicament reservoir 17 are placed on and add in the cartridge case 1, then with 3 seam of fairlead I on the top that adds cartridge case 1; Again push rod 5 is installed in the fairlead II 24; And make the guide pad 9 on the push rod 5 pass the guiding helicla flute 7 on the fairlead II 24; At last that the guide pad on the push rod 59 is corresponding with gathering sill 8 on the fairlead I 3, be installed in rotary sleeve 4 on the fairlead I 3 after, guide pad 9 stretches in the gathering sill 8.
When using the thrust unit that uses on this precession 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; Shown in figure 11, annular rubber cushion 12, dosing crosspointer 2 and medicament reservoir 17 be pre-loaded under aseptic condition add in the cartridge case 1, again with fairlead II 24 with add cartridge case 1 sealed butt joint.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 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 guiding helicla flute 7 on the fairlead II 24; 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; Shown in figure 12, 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 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 thrust unit that uses on the precession prepackage type drug feeding device is characterized in that: comprise fairlead I (3), rotary sleeve (4) and push rod (5); Said fairlead I (3) is coaxially set with rotary sleeve (4), and fairlead I (3) forms axial restraint with rotary sleeve (4) and cooperates; Said push rod (5) drives moving axially along fairlead I (3) along the axial setting of fairlead I (3) and by rotary sleeve (4).
2. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 1 is characterized in that: said fairlead I (3) is provided with gathering sill (8) vertically.
3. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 2 is characterized in that: also comprise fairlead II (24), guiding helicla flute (7) is set on the said fairlead II (24); The outer wall of said push rod (5) is provided with guide pad (9), and said fairlead I (3) is positioned at fairlead II (24), and guide pad (9) passes gathering sill (8) and inserts in the guiding helicla flute (7).
4. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 3; It is characterized in that: said fairlead I (3) is one-body molded with rotary sleeve (4); Said rotary sleeve (4) forms axial restraint, radially rotatable cooperation the, and rotary sleeve (4) and fairlead II (24) with fairlead II (24) and is sealed and matched.
5. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 4; It 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 of fairlead II (24) and with it and is sealed and matched.
6. according to the thrust unit that uses on the described precession prepackage type of each claim drug feeding device in the claim 1 to 4, it is characterized in that: the other end of said rotary sleeve (4) is a blind end.
7. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 2 is characterized in that: also comprise fairlead II (24), guiding helicla flute (7) is set on the said fairlead II (24); The outer wall of said push rod (5) is provided with guide pad (9), and said fairlead II (24) is positioned at fairlead I (3), and said guide pad (9) passes guiding helicla flute (7) and inserts in the gathering sill (8).
8. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 7; It is characterized in that: said fairlead II (24) is one-body molded with rotary sleeve (4); Said rotary sleeve (4) forms axial restraint, radially rotatable cooperation the, and rotary sleeve (4) and fairlead I (3) with fairlead I (3) and is sealed and matched.
9. the thrust unit that uses on the precession prepackage type drug feeding device according to claim 8; It 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 of fairlead I (3) and with it and is sealed and matched.
10. according to the thrust unit that uses on claim 7, the 8 or 9 described precession prepackage type drug feeding devices, it is characterized in that: the other end of said rotary sleeve (4) is a blind end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201420919U CN202497451U (en) | 2012-04-06 | 2012-04-06 | Pushing unit used for screw-in preassembled medicine feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201420919U CN202497451U (en) | 2012-04-06 | 2012-04-06 | Pushing unit used for screw-in preassembled medicine feeder |
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| Publication Number | Publication Date |
|---|---|
| CN202497451U true CN202497451U (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201420919U Expired - Lifetime CN202497451U (en) | 2012-04-06 | 2012-04-06 | Pushing unit used for screw-in preassembled medicine feeder |
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| Country | Link |
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| CN (1) | CN202497451U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716032A (en) * | 2012-04-06 | 2012-10-10 | 重庆莱美药业股份有限公司 | Thrust unit used on precession preassembling type dosing instrument |
| WO2013149445A1 (en) * | 2012-04-06 | 2013-10-10 | 重庆莱美药业股份有限公司 | Preassembled medicine mixer |
| CN107820421A (en) * | 2015-05-08 | 2018-03-20 | 费森尤斯卡比股份公司 | Connector for containers for medical use |
-
2012
- 2012-04-06 CN CN2012201420919U patent/CN202497451U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716032A (en) * | 2012-04-06 | 2012-10-10 | 重庆莱美药业股份有限公司 | Thrust unit used on precession preassembling type dosing instrument |
| WO2013149445A1 (en) * | 2012-04-06 | 2013-10-10 | 重庆莱美药业股份有限公司 | Preassembled medicine mixer |
| CN102716032B (en) * | 2012-04-06 | 2014-10-01 | 重庆莱美药业股份有限公司 | Thrust unit used on precession preassembling type dosing instrument |
| US9839581B2 (en) | 2012-04-06 | 2017-12-12 | Chongqing Lummy Pharmaceutical Co., Ltd. | Preassembled medicine mixer |
| CN107820421A (en) * | 2015-05-08 | 2018-03-20 | 费森尤斯卡比股份公司 | Connector for containers for medical use |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
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| CX01 | Expiry of patent term |