CN202478171U - Halfway thread screwing-in preassembling medicine adder - Google Patents
Halfway thread screwing-in preassembling medicine adder Download PDFInfo
- Publication number
- CN202478171U CN202478171U CN2012201001173U CN201220100117U CN202478171U CN 202478171 U CN202478171 U CN 202478171U CN 2012201001173 U CN2012201001173 U CN 2012201001173U CN 201220100117 U CN201220100117 U CN 201220100117U CN 202478171 U CN202478171 U CN 202478171U
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- CN
- China
- Prior art keywords
- cartridge case
- medicine
- screw thread
- feeding device
- overcoat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a halfway thread screwing-in preassembling medicine adder which comprises a medicine adding cylinder, double medicine adding needles, an inner jacket and an outer jacket, wherein a sealing film is arranged in the inner jacket, an annular lug boss I with an external thread is arranged on the outer wall of the inner jacket or the medicine adding cylinder, an annular lug boss II with an internal thread is arranged on the inner wall of the outer jacket, the outer jacket is matched and sleeved on the inner jacket or medicine adding cylinder through a thread, and a pressure rod is arranged on the closed end of the outer jacket. A connector connecting end of the medicine adding cylinder is abutted with a connector in a transfusion container, a medicine container is added in the medicine cylinder, a diaphragm and a sealing film in the connector are used for sealing the medicine container and the double medicine adding needles, therefore, the medicine container is in an aseptic condition during transportation and storage. When medicines are mixed, the pressure rod pushes the medicine container and the double medicine adding needles, an upper needle point pierces the sealing plug of the medicine container, a lower needle point pierces the diaphragm in the connector to ensure that the medicine container is instantly communicated with the transfusion container, thus the medicines are all aseptically closed in processes of transportation, storage, abutting-joint, medicine mixing and transfusion.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, the drug feeding device that uses when relating in particular to a kind of mixed medicine.
Background technology
For the medicine in the medicament reservoir is added in the solution in the infusion vessel (being transfusion flexible bag or soft transfusion bottle), then mixed solution is imported such as the patient in the clinical mechanism of hospital.In the prior art, often adopt drug feeding device that medicament reservoir is connected with transfusion flexible bag or soft transfusion bottle.
Drug feeding device of the prior art mainly comprises and adds cartridge case and dosing crosspointer; The dosing tube forms cup-like structure, and the dosing crosspointer is stuck in through the crosspointer supporting seat and adds in the cartridge case, in order to seal mixing the medicine passage; Be provided with barrier film adding on the bottom interior wall cross section of cartridge case; Top adding cartridge case is provided with diaphragm seal, and a needle point of dosing crosspointer is corresponding with barrier film, and another needle point of dosing crosspointer is corresponding with the diaphragm seal of top.During use; This is added cartridge case dock, tear the diaphragm seal that adds on the cartridge case top, medicament reservoir is snapped in add in the cartridge case again with the interface of transfusion flexible bag or soft transfusion bottle; Also promoting the dosing crosspointer when medicament reservoir snaps in moves down; The last needle point of dosing crosspointer pierces through the sealing-plug on the medicament reservoir, the broken barrier film of the following acupuncture of dosing crosspointer and pierce through transfusion flexible bag or the interface of soft transfusion bottle on sealing-plug, extruding transfusion flexible bag or soft transfusion bottle just can realize mixing medicine.
Adopt the drug feeding device of said structure, mainly in mixed medicine process have a following deficiency: snap in when adding in the cartridge case at medicament reservoir, must add the diaphragm seal on the cartridge case top by tear initiation, and add cartridge case when snapping in and to contact with the external world, and then pollute.And all closed drug feeding devices that occur in the prior art all can only be implemented in and mix the airtight of medicine process, and can not realize cillin bottle and drug feeding device dock, mix medicine and " overall process is sterile closed " when infusing.
The utility model content
To the above-mentioned deficiency that exists in the prior art, this utility model provides a kind of and can under the integral asepsis state, dock, mixed medicine and the airtight half way screw thread precession prepackage type drug feeding device of transfusion overall process.
In order to solve the problems of the technologies described above, this utility model has adopted following technical scheme:
Half way screw thread precession prepackage type drug feeding device comprises adding cartridge case, dosing crosspointer, interior cover and overcoat;
A said end that adds cartridge case is the interface link, and said dosing crosspointer is located at through the crosspointer supporting seat and adds in the cartridge case and can be along adding moving axially of cartridge case, and a needle point of dosing crosspointer is corresponding with the interface link;
The cross section of inboard wall of cover is provided with a diaphragm seal in said, interior cover or add on the outer wall of cartridge case and along the circumferential direction be provided with an annular boss I, the annular boss I is provided with external screw thread outward, said in an end and the other end sealed butt joint that adds cartridge case of cover;
The one end sealing of said overcoat; Along the circumferential direction be provided with an annular boss II on the inwall of overcoat; In the said annular boss II female thread is set, overcoat through the threaded engagement rotation set at interior cover or add on the cartridge case, the blind end of its external sleeve be provided with one stretch to diaphragm seal depression bar.
As a kind of preferred version of this utility model, said in cover or add on the outer wall of cartridge case and along the circumferential direction be provided with annular snap, the external diameter of said annular snap is greater than the internal diameter of annular boss II; Distance between the free end of said annular boss I and interior cover is less than the distance between the free end of annular snap and interior cover.
As the another kind of preferred version of this utility model, be arranged with at least two elasticity cards that are used to support medicament reservoir on the said inwall that adds cartridge case.
As another preferred version of this utility model, the middle part of said diaphragm seal is the position that is prone to expose.
As a kind of improvement project of this utility model, said diaphragm seal is a sealing elastomeric membrane.
As the another kind of improvement project of this utility model, said depression bar is along the axis setting of overcoat.
As another improvement project of this utility model, the said interface link that adds cartridge case forms a throat structure.
The beneficial effect of this utility model is: when using this half way screw thread precession prepackage type drug feeding device; To add the interface link of cartridge case earlier and dock (can adopt seam) with interface on transfusion flexible bag or the soft transfusion bottle; Medicament reservoir is pre-loaded into adds in the cartridge case; Through the barrier film in the interface with in the diaphragm seal that puts make medicament reservoir and dosing crosspointer be in sealing state, therefore, can arrive and transport and store absolute aseptic.When mixing medicine, first rotary sleeve moves down more near diaphragm seal depression bar; After waiting to accomplish screw thread travel, rapid downwards pushing overcoat makes depression bar expose diaphragm seal or make diaphragm seal produce deformation from middle part moment of diaphragm seal; Press on the medicament reservoir, and 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 belongs to aseptic butt joint; Therefore, it is sterile closed that the overall process of medicine and transfusion can be realized transporting, stores, docks, mixed to this half way screw thread precession prepackage type drug feeding device.
Description of drawings
Fig. 1 is the structural representation of half way screw thread precession prepackage type drug feeding device;
Fig. 2 is the structural representation of half way screw thread precession prepackage type drug feeding device seam on infusion vessel.
In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 3-medicament reservoir; 4-interior cover; 5-overcoat; 6-interface link; 7-crosspointer supporting seat; 8-diaphragm seal; 9-depression bar; 10-elasticity card; 11-annular snap; 12-infusion vessel; 13-interface; 14-barrier film; 15-annular boss I; 16-annular boss 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.
As shown in Figure 1, half way screw thread precession prepackage type drug feeding device comprises adding cartridge case 1, dosing crosspointer 2, interior cover 4 and overcoat 5.An end that adds cartridge case 1 is an interface link 6, and 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.The cross section of inboard wall of interior cover 4 is provided with a diaphragm seal 8; In cover 4 or add on the outer wall of cartridge case 1 and along the circumferential direction be provided with an annular boss I 15 (in the present embodiment; On the outer wall of interior cover 4, be provided with annular boss I 15; And the top of cover 4 in annular boss I 15 is arranged on), annular boss the I 15 outer external screw thread that is provided with, an end of interior cover 4 and the other end sealed butt joint that add cartridge case 1.The one end sealing of overcoat 5; Along the circumferential direction be provided with an annular boss II 16 on the inwall of overcoat 5 (in the present embodiment; Annular boss II 16 is arranged on the bottom near overcoat 5); In the annular boss II 16 female thread is set, overcoat 5 through the threaded engagement rotation set on interior cover 4, the blind end of its external sleeve 5 be provided with one stretch to diaphragm seal 8 depression bar 9.If annular boss I 15 is arranged on the outer wall that adds cartridge case 1, then overcoat 5 is adding on the cartridge case 1 through the threaded engagement rotation set.
Along the circumferential direction be provided with annular snap 11 on the outer wall of interior cover 4, the external diameter of annular snap 11 is greater than the internal diameter of annular boss II 16.In the present embodiment, on the outer wall of interior cover 4 and near the seam end, along the circumferential direction be provided with annular snap 11.When mixing medicine, first rotary sleeve 5 promotes overcoat 5 then rapidly downwards; After the annular boss II 16 of overcoat 5 is pushed to the below of annular snap 11; Retreat because of annular snap 11 stops overcoat 5,, also can guarantee can not move backward at mixed medicine process Chinese medicine container 3 even under the situation that does not apply external force.Annular snap 11 also can be arranged on the outer wall that adds cartridge case 1, only need satisfy distance between the free end (being top ports) of annular boss I 15 and interior cover 4 less than the distance between the free end (being top ports) of annular snap 11 and interior cover 4.
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 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.
When this half way screw thread precession prepackage type drug feeding device and infusion vessel assembling, interface link 6 seam that at first will add cartridge case 1 are on the interface on the infusion vessel 12 13; Again dosing crosspointer 2 is snapped in and add in the cartridge case 1; Dosing crosspointer 2 is fixed through crosspointer supporting seat 7 and the friction that adds between cartridge case 1 inwall, certainly, also can support dosing crosspointer 2 through the support bar of frangible; Only need support bar is arranged on the bottom of crosspointer supporting seat 7 and supports crosspointer supporting seat 7; In the process that dosing crosspointer 2 moves down, crosspointer supporting seat 7 at first breaks support bar, and dosing crosspointer 2 just can move down smoothly; Then medicament reservoir 3 is placed on and adds in the cartridge case 1; Because of being arranged with at least two elasticity cards 10 (in the present embodiment on the inwall that adds cartridge case 1; Add on the inwall of cartridge case 1 and be arranged with four elasticity cards); Medicament reservoir 3 is supported on (being that elasticity card 10 is stuck between the bottle cap and body of medicament reservoir 3) on the elasticity card 10, makes the position relative fixed of medicament reservoir 3; And then with interior cover 4 seam on the other end that adds cartridge case 1; At last with overcoat 5 rotation sets on interior cover 4.
When using this half way 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, medicament reservoir 3 is pre-loaded into adds in the cartridge case 1, make medicament reservoir 3 and dosing crosspointer 2 be in sealing state through barrier film in the interface 13 14 and diaphragm seals 8 on the interior cover 4; Therefore, can arrive the transportation and store absolute aseptic.When mixing medicine, be rotated down overcoat 5 earlier, depression bar 9 is moved down more near diaphragm seal; Rapid downwards pushing overcoat 5 then makes depression bar expose the middle part of diaphragm seal 8 or makes diaphragm seal produce deformation, presses on the medicament reservoir 3; Promoting medicament reservoir 3 moves down; And then promote dosing crosspointer 2 and move down, the annular boss II 16 on its external sleeve 5 is pushed to the below of annular snap 11, when the last needle point of dosing crosspointer 2 pierces through the sealing-plug on the medicament reservoir 3; The following needle point of dosing crosspointer 2 punctures the barrier film 14 in the interface 13; Make that moment is communicated with in medicament reservoir 3 and the transfusion flexible bag, whole process all belongs to aseptic butt joint, and whole process all is rotated down the back earlier through overcoat 5 and promotes realization (promptly realizing the precession of half way screw thread) downwards on interior cover 4.And the half way helicitic texture can prevent transportation and store, depression bar breakseal film or compressing infusion vessel, and therefore, it is sterile closed that this half way screw thread precession prepackage type drug feeding device can realize transporting, store, dock, mix the overall process of 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. half way screw thread precession prepackage type drug feeding device comprises adding cartridge case (1) and dosing crosspointer (2); It is characterized in that: also comprise interior cover (4) and overcoat (5);
A said end that adds cartridge case (1) is interface link (6); Said 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);
The cross section of inboard wall of cover (4) is provided with a diaphragm seal (8) in said; In cover (4) or add on the outer wall of cartridge case (1) and along the circumferential direction be provided with an annular boss I (15); The outer external screw thread that is provided with of annular boss I (15), an end of said interior cover (4) and the other end sealed butt joint that adds cartridge case (1);
The one end sealing of said overcoat (5); Along the circumferential direction be provided with an annular boss II (16) on the inwall of overcoat (5); In the said annular boss II (16) female thread is set; Overcoat (5) through the threaded engagement rotation set at interior cover (4) or add on the cartridge case (1), the blind end of its external sleeve (5) be provided with one stretch to diaphragm seal (8) depression bar (9).
2. half way screw thread precession prepackage type drug feeding device according to claim 1; It is characterized in that: cover (4) or add on the outer wall of cartridge case (1) and along the circumferential direction be provided with annular snap (11) in said, the external diameter of said annular snap (11) is greater than the internal diameter of annular boss II (16); Distance between the free end of said annular boss I (15) and interior cover (4) is less than the distance between the free end of annular snap (11) and interior cover (4).
3. half way screw thread precession prepackage type drug feeding device according to claim 1 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).
4. half way screw thread precession prepackage type drug feeding device according to claim 1, it is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.
5. half way screw thread precession prepackage type drug feeding device according to claim 1, it is characterized in that: said diaphragm seal is a sealing elastomeric membrane.
6. according to the described half way screw thread of each claim precession prepackage type drug feeding device in the claim 1 to 5, it is characterized in that: said depression bar (9) is along the axis setting of overcoat (5).
7. half way screw thread precession prepackage type drug feeding device according to claim 6 is characterized in that: the said interface link (6) that adds cartridge case (1) forms a throat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201001173U CN202478171U (en) | 2012-03-16 | 2012-03-16 | Halfway thread screwing-in preassembling medicine adder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201001173U CN202478171U (en) | 2012-03-16 | 2012-03-16 | Halfway thread screwing-in preassembling medicine adder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202478171U true CN202478171U (en) | 2012-10-10 |
Family
ID=46952637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201001173U Expired - Lifetime CN202478171U (en) | 2012-03-16 | 2012-03-16 | Halfway thread screwing-in preassembling medicine adder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202478171U (en) |
-
2012
- 2012-03-16 CN CN2012201001173U patent/CN202478171U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |