CN202459352U - Precession drug-adding device - Google Patents

Abstract

The utility model discloses a precession drug-adding device which comprises a sealing device, a pushing device and drug-adding double needles. The pushing device comprises a guide sleeve, a pressing component and a driving component, wherein the driving component and the guide sleeve are fixed along the axis direction and in running fit along the radial direction, and the pressing component and the guide sleeve are fixed along the radial direction and in movable fit along the axis direction. The guide sleeve is connected with the sealing device, and the pressing component can be pressed towards the inside of the sealing device through one end of the sealing device. When the precession drug-adding device is used, a drug container is preassembled in the sealing device, by means of a diaphragm inside a port and a sealing membrane above the sealing device, the drug container and the drug-adding double needles are positioned in a sealing state, so that absolute sterility is achieved in transportation and storage. In a drug mixing process, the pressing component is pushed to enable an upper needle tip to puncture a sealing plug of the drug container and a lower needle tip to puncture the diaphragm inside the port, and then the drug container and a transfusion container are communicated instantly and sterile abutting joint is achieved in the whole process. Therefore sterile seal is achieved in the overall process of the transportation, the storage, the abutting joint, drug mixing and transfusion.

Description

The precession drug feeding device

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 soft transfusion bottle on interface on sealing-plug, extruding transfusion flexible bag or soft transfusion bottle just can realize mixing medicine.

Adopt the drug feeding device of said structure, mainly in mixed medicine process have a following deficiency: snap in when adding in the cartridge case at medicament reservoir, must add the diaphragm seal on the cartridge case top by tear initiation, and add cartridge case when snapping in and to contact with the external world, and then pollute.And all closed drug feeding devices that occur in the prior art all can only be implemented in and mix the airtight of medicine process, and can not realize cillin bottle and drug feeding device dock, mix medicine and " overall process is sterile closed " when infusing.

The utility model content

To the above-mentioned deficiency that exists in the prior art, this utility model provides a kind of and can under the integral asepsis state, dock, mixed medicine and the airtight precession 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:

The precession drug feeding device comprises sealing device, thrust unit and dosing crosspointer, and said dosing crosspointer is arranged in the sealing device, and said thrust unit comprises that a fairlead, press member and driving press member are along the axially movable driver part of fairlead; Said driver part and fairlead axial restraint, rotatable cooperation radially, said press member is radially fixed with fairlead formation, axially-displaceable movingly; Said fairlead is connected with sealing device, and said press member can be pressed in the sealing device through an end of sealing device.

As a kind of preferred version of this utility model, said sealing device is one to add cartridge case, adds an end of cartridge case and docks the back with interface on the infusion vessel and form sealed end, and the other end that adds cartridge case has a diaphragm seal.

As the another kind of preferred version of this utility model, the middle part of said diaphragm seal is the position that is prone to expose.

As another preferred version of this utility model, said diaphragm seal is a sealing elastomeric membrane.

A kind of improvement project as this utility model; Said press member is a depression bar; Said driver part is a rotary sleeve, rotary sleeve be enclosed within on the fairlead and with fairlead axial restraint, rotatable cooperation radially, said rotary sleeve can drive depression bar and move axially along fairlead.

As the another kind of improvement project of this utility model, said fairlead with add the other end sealed butt joint of cartridge case, said diaphragm seal is arranged on the cross section in the fairlead and near the sealed butt joint end of fairlead.

As another improvement project of this utility model, said depression bar is along the axis setting of fairlead, and corresponding with diaphragm seal.

As the further again improvement project of this utility model, a said end that adds cartridge case is a throat structure.

The beneficial effect of this utility model is: when using this precession drug feeding device; Earlier sealing device (as adding cartridge case) is docked (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; Diaphragm seal through barrier film in the interface and sealing device top makes medicament reservoir and dosing crosspointer be in sealing state, therefore, can reach transportation and store absolute aseptic.When mixing medicine; Through the press member of thrust unit, the moment of exerting pressure through diaphragm seal or make diaphragm seal produce deformation to promote medicament reservoir and move down, and then promote the dosing crosspointer and move down; When the last needle point of dosing crosspointer pierces through the sealing-plug on the medicament reservoir; The following needle point of dosing crosspointer punctures the barrier film in the interface, and medicament reservoir and transfusion flexible bag or soft transfusion bottle interior moment are communicated with, and whole process all is in aseptic butt joint; Therefore, it is sterile closed that the overall process of medicine and transfusion can be realized transporting, stores, docks, mixed to this precession drug feeding device.

Description of drawings

Fig. 1 is the structural representation of precession drug feeding device;

Fig. 2 is the structural representation of precession drug feeding device seam on infusion vessel.

In the accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 3-medicament reservoir; 4-fairlead; 5-rotary sleeve; 6-interface link; 7-crosspointer supporting seat; 8-diaphragm seal; 9-depression bar; 10-elasticity card; 11-gathering sill; 12-infusion vessel; 13-interface; 14-barrier film; 15-guide pad; 16-internal thread hole.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment this utility model is done to describe in further detail.

As shown in Figure 1, the precession drug feeding device comprises sealing device, thrust unit and dosing crosspointer 2.Dosing crosspointer 2 is arranged in the sealing device.Thrust unit comprises that a fairlead 4, press member and driving press member are along fairlead 4 axially movable driver parts.Driver part and fairlead 4 axial restraints, rotatable cooperation radially, press member is radially fixed with fairlead formation, axially-displaceable movingly.Fairlead 4 is connected with sealing device, and press member can be pressed in the sealing device through an end of sealing device.

Sealing device is one to add cartridge case 1; An end (being the bottom in the present embodiment) that adds cartridge case 1 is interface link 6; Interface link 6 docks the back and forms sealed end with interface on the infusion vessel 12, the other end (being the top in the present embodiment) that adds cartridge case 1 has 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 after medicament reservoir 3 was placed on and adds in the cartridge case 1, a needle point of dosing crosspointer 2 was corresponding with interface link 6, and another needle point of dosing crosspointer 2 is corresponding with medicament reservoir 3.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.

Fairlead 4 docks with the end sealing that adds cartridge case 1, is provided with gathering sill 11 vertically in the relative both sides of inwall of fairlead 4, and diaphragm seal 8 is arranged on the cross section of bottom in the fairlead 4.Press member is a depression bar 9, is respectively equipped with a guide pad 15 in the both sides of depression bar 9, and the top of depression bar 9 is provided with external screw thread, and the bottom of depression bar 9 is corresponding with diaphragm seal 8.Driver part is a rotary sleeve 5, rotary sleeve 5 be enclosed within on the fairlead 4 and with fairlead 4 axial restraints, rotatable cooperation radially, along axis internal thread hole 16 is set at the middle part of rotary sleeve 5.The guide pad 15 of depression bar 9 both sides puts in respectively in the gathering sill 11 of respective side, and the top of depression bar 9 screws in the internal thread hole 16 of rotary sleeve 5.Rotation rotary sleeve 5 can drive depression bar 9 and move axially along fairlead 4.

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 press member (adopting depression bar 9 in this enforcement) presses on the sealing film, at first exposes the middle part of sealing film, directly presses on the infusion vessel 12 then.Certainly, diaphragm seal 8 also can adopt sealing elastomeric membrane, infusion vessel 12 be pre-loaded into add in the cartridge case 1 after, depression bar 9 presses on the infusion vessel 12 through the sealing elastica.Depression bar 9 is along the axis setting of fairlead 4, and when rotary sleeve 5 rotated on fairlead 4, depression bar 9 can more help exposing diaphragm seal 8 over against the positive middle part of diaphragm seal 8.

When this precession 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; Dosing crosspointer 2 is snapped in again and add in the cartridge case 1, dosing crosspointer 2 is fixed through crosspointer supporting seat 7 and the friction that adds between cartridge case 1 inwall; Then medicament reservoir 3 is placed on and adds in the cartridge case 1; 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 fairlead 4 seam on the top that adds cartridge case 1, the top of depression bar 9 is screwed in the internal thread hole 16 of rotary sleeve 5, rotary sleeve 5 is fastened on the top of fairlead 4.

When using this precession 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 under aseptic condition adds in the cartridge case 1, the diaphragm seal 8 through barrier film in the interface 13 14 and fairlead 4 bottoms makes medicament reservoir 3 and dosing crosspointer 2 be in sealing state; Therefore, can reach the transportation and store absolute aseptic.When mixing medicine; Rotate rotary sleeve 5, rotary sleeve 5 drives depression bar 9 and moves down and expose the middle part of diaphragm seal 8 or make diaphragm seal produce deformation along fairlead 4, presses on the medicament reservoir 3; And promotion dosing crosspointer 2 moves down; When the last needle point of dosing crosspointer 2 pierced through the sealing-plug on the medicament reservoir 3, the following needle point of dosing crosspointer 2 punctured the barrier film 14 in the interface 13, and medicament reservoir 3 and transfusion flexible bag interior moment is communicated with; Whole process all is in aseptic butt joint, and whole process all drives depression bar 9 downward precessions realizations through rotating rotary sleeve 5.And rotary sleeve 5 and depression bar 9 be through threaded engagement, mix depression bar 9 before the medicine be positioned at diaphragm seal above, when mixing medicine, need rotate rotary sleeve 5 and could realize that depression bar 9 moves down, so can prevent in transportation and storage depression bar breakseal film or oppress infusion vessel.Because this precession 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 (8)

1. precession drug feeding device; It is characterized in that: comprise sealing device, thrust unit and dosing crosspointer (2); Said dosing crosspointer (2) is arranged in the sealing device, and said thrust unit comprises that a fairlead (4), press member and driving press member are along the axially movable driver part of fairlead (4); Said driver part and fairlead (4) axial restraint, rotatable cooperation radially, said press member is radially fixed with fairlead formation, axially-displaceable movingly; Said fairlead (4) is connected with sealing device, and said press member can be pressed in the sealing device through an end of sealing device.

2. precession drug feeding device according to claim 1; It is characterized in that: said sealing device is one to add cartridge case (1); Add an end of cartridge case (1) and dock the back with interface on the infusion vessel (12) and form sealed end, the other end that adds cartridge case (1) has a diaphragm seal (8).

3. precession drug feeding device according to claim 2 is characterized in that: the middle part of said diaphragm seal (8) is the position that is prone to expose.

4. precession drug feeding device according to claim 2 is characterized in that: said diaphragm seal is a sealing elastomeric membrane.

5. according to the described precession drug feeding device of each claim in the claim 2 to 4; It is characterized in that: said press member is depression bar (9); Said driver part is rotary sleeve (5); Rotary sleeve (5) be enclosed within that fairlead (4) is gone up and with fairlead (4) axial restraint, rotatable cooperation radially, said rotary sleeve (5) can drive depression bar (9) and move axially along fairlead (4).

6. precession drug feeding device according to claim 5; It is characterized in that: said fairlead (4) with add the other end sealed butt joint of cartridge case (1), said diaphragm seal (8) is arranged on the cross section in the fairlead (4) and near the sealed butt joint end of fairlead (4).

7. precession drug feeding device according to claim 6 is characterized in that: said depression bar (9) is along the axis setting of fairlead (4), and corresponding with diaphragm seal (8).

8. precession drug feeding device according to claim 7 is characterized in that: a said end that adds cartridge case (1) is a throat structure.

Images