CN202459346U - Halfway thread propelling prefilled-type medicine adder - Google Patents
Halfway thread propelling prefilled-type medicine adder Download PDFInfo
- Publication number
- CN202459346U CN202459346U CN2012201001116U CN201220100111U CN202459346U CN 202459346 U CN202459346 U CN 202459346U CN 2012201001116 U CN2012201001116 U CN 2012201001116U CN 201220100111 U CN201220100111 U CN 201220100111U CN 202459346 U CN202459346 U CN 202459346U
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- China
- Prior art keywords
- cartridge case
- medicine
- screw thread
- diaphragm seal
- annular boss
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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.)
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Abstract
The utility model discloses a halfway thread propelling prefilled-type medicine adder, which comprises a medicine adding cylinder, a medicine adding bidirectional needle and a jacket, wherein the interior of the medicine adding cylinder is provided with a seal membrane; the outer wall of the medicine adding cylinder is provided with an annular boss I with an external screw thread; the inner wall of the jacket is provided with an annular boss II with an internal screw thread; the jacket is sheathed onto the medicine adding cylinder through screw-thread fit; and the closed end of the jacket is provided with a compression bar. Firstly, a medicine container and the medicine adding bidirectional needle are arranged in the medicine adding cylinder, the connector coupling end of the medicine adding cylinder is butted with a connector on an infusion container, and the medicine container and the medicine adding bidirectional needle are in a seal state through a diaphragm in the connector and the seal membrane, so that the medicine container is in a sterile state during the process of transportation and storage. When medicines are mixed, the medicine container and the medicine adding bidirectional needle are pushed by the compression bar; a seal plug of the medicine container is punctured by an upper needle tip, and the diaphragm in the connector is punctured by a lower needle tip, so that the medicine container is communicated with the interior of the infusion container instantaneously. Medicines can be sealed without bacteria during the whole process of transportation, storage, abutting, medicine mixing and infusion.
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 of transfusion overall process advances the prepackage type drug feeding device.
In order to solve the problems of the technologies described above, this utility model has adopted following technical scheme:
The half way screw thread advances the prepackage type drug feeding device, comprises adding cartridge case, dosing crosspointer and overcoat; A said end that adds cartridge case is the interface link, adds on the other end outer wall of cartridge case along the circumferential direction to be provided with an annular boss I, and the annular boss I is provided with external screw thread outward, is provided with a diaphragm seal on the said cross section of inboard wall that adds cartridge case and near the other end; 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, and another needle point is corresponding with diaphragm seal; The sealing of one end of said overcoat along the circumferential direction is provided with an annular boss II on the inwall of overcoat, in the said annular boss II female thread is set, and overcoat is adding on the cartridge case through the threaded engagement rotation set, 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, along the circumferential direction be provided with annular snap on the said outer wall that adds cartridge case, the external diameter of said annular snap is greater than the internal diameter of annular boss II; Said annular boss I and add distance between the other end of cartridge case less than annular snap and add the distance between the other end of cartridge case.
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 overcoat.
As the another kind of improvement project of this utility model, said diaphragm seal is with to add cartridge case one-body molded.
The beneficial effect of this utility model is: when using this half way screw thread to advance the prepackage type drug feeding device; Earlier medicament reservoir and dosing crosspointer are pre-loaded into and add in the cartridge case; To add the interface link of cartridge case again and dock (can adopt seam) with interface on transfusion flexible bag or the soft transfusion bottle; Make medicament reservoir and dosing crosspointer be in sealing state through barrier film in the interface and the diaphragm seal that adds on the cartridge case, therefore, can arrive transportation 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, to advance prepackage type drug feeding device can realize transporting, store, dock, mix the overall process of medicine and transfusion sterile closed for this half way screw thread.
Description of drawings
Fig. 1 advances the structural representation of prepackage type drug feeding device for the half way screw thread;
Fig. 2 advances the structural representation of prepackage type drug feeding device seam on infusion vessel for the half way screw thread.
In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 3-medicament reservoir; 5-overcoat; 6-interface link; 7-crosspointer supporting seat; 8-diaphragm seal; 9-depression bar; 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, the half way screw thread advances the prepackage type drug feeding device, comprises adding cartridge case 1, dosing crosspointer 2 and overcoat 5.An end that adds cartridge case 1 is an interface link 6, adds on the other end outer wall of cartridge case 1 along the circumferential direction to be provided with an annular boss I 15, and annular boss I 15 is outer to be provided with external screw thread, adds on the cross section of inboard wall of cartridge case 1 and near the other end to be provided with a diaphragm seal 8.Dosing crosspointer 2 is located at through crosspointer supporting seat 7 and adds in the cartridge case 1 and can be along adding moving axially of cartridge case 1, and a needle point of dosing crosspointer 2 is corresponding with interface link 6, and another needle point of dosing crosspointer 2 is corresponding with diaphragm seal 8.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 is adding on the cartridge case 1 through the threaded engagement rotation set, the blind end of its external sleeve 5 be provided with one stretch to diaphragm seal 8 depression bar 9.Sealing film 8 with add cartridge case 1 can be one-body molded to reduce processing technology, also can with diaphragm seal 8 with add cartridge case 1 and be made as independently two parts, again diaphragm seal 8 is fixedly installed on the cross section that adds in the cartridge case 1.
Add on the outer wall of cartridge case 1 and along the circumferential direction be provided with annular snap 11; The external diameter of annular snap 11 is greater than the internal diameter of annular boss II 16, annular boss I 15 and add distance between the other end (in the present embodiment for adding the top of cartridge case 1) of cartridge case 1 less than the distance between annular snap 11 and the other end that adds cartridge case 1 (being the top that adds cartridge case 1 in the present embodiment).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.
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 advances prepackage type drug feeding device to assemble with infusion vessel, at first medicament reservoir 3 is placed on and adds in the cartridge case 1; 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; Interface link 6 seam that will add cartridge case 1 then are on the interface on the infusion vessel 12 13; At last overcoat 5 rotation sets are being added on the cartridge case 1.
When using this half way screw thread to advance the prepackage type drug feeding device; Elder generation is pre-loaded into medicament reservoir 3 and dosing crosspointer 2 and adds in the cartridge case 1, will add interface 13 sealed butt joint (can adopt the mode of seam, also can adopt the mode that is threaded) of the interface link and the infusion vessel 12 of cartridge case 1; In the present embodiment; Infusion vessel 12 adopts transfusion flexible bag, and is as shown in Figure 2, makes medicament reservoir 3 and dosing crosspointer 2 be in sealing state through barrier film in the interface 13 14 and the diaphragm seal 8 that adds on the cartridge case 1; 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 and promotes to realize (promptly realizing the propelling of half way screw thread) downwards adding through overcoat 5 on the cartridge case 1.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 advances 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 (6)
1. the half way screw thread advances the prepackage type drug feeding device, comprises adding cartridge case (1) and dosing crosspointer (2); It is characterized in that: also comprise overcoat (5);
A said end that adds cartridge case (1) is interface link (6); Add on the other end 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) is provided with a diaphragm seal (8) on the said cross section of inboard wall that adds cartridge case (1) and near the other end; 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), and another needle point is corresponding with diaphragm seal (8);
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) is adding on the cartridge case (1) through the threaded engagement rotation set, 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 according to claim 1 advances the prepackage type drug feeding device, it is characterized in that: along the circumferential direction be provided with annular snap (11) on the said outer wall that adds cartridge case (1), the external diameter of said annular snap (11) is greater than the internal diameter of annular boss II (16); Said annular boss I (15) and add distance between the other end of cartridge case (1) less than annular snap (11) and add the distance between the other end of cartridge case (1).
3. half way screw thread according to claim 1 advances the prepackage type drug feeding device, and it is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.
4. half way screw thread according to claim 1 advances the prepackage type drug feeding device, and it is characterized in that: said diaphragm seal is a sealing elastomeric membrane.
5. advance the prepackage type drug feeding device according to the described half way screw thread of each claim in the claim 1 to 4, it is characterized in that: said depression bar (9) is along the axis setting of overcoat (5).
6. half way screw thread according to claim 5 advances the prepackage type drug feeding device, it is characterized in that: said diaphragm seal (8) and to add cartridge case (1) one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201001116U CN202459346U (en) | 2012-03-16 | 2012-03-16 | Halfway thread propelling prefilled-type medicine adder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201001116U CN202459346U (en) | 2012-03-16 | 2012-03-16 | Halfway thread propelling prefilled-type medicine adder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459346U true CN202459346U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201001116U Expired - Lifetime CN202459346U (en) | 2012-03-16 | 2012-03-16 | Halfway thread propelling prefilled-type medicine adder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202459346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713212A (en) * | 2021-09-13 | 2021-11-30 | 苏州市立医院 | Anesthesia needle structure that convenient medicine that department of anesthesia used |
-
2012
- 2012-03-16 CN CN2012201001116U patent/CN202459346U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713212A (en) * | 2021-09-13 | 2021-11-30 | 苏州市立医院 | Anesthesia needle structure that convenient medicine that department of anesthesia used |
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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 |