CN102716036B - Short-travel push preassembly medicating instrument - Google Patents

Abstract

The invention discloses a short-travel push preassembly medicating instrument which comprises a medicating barrel, a medicating dual needle, a rotating sleeve and a guide part, wherein a guide slot is formed on the inner wall of the medicating barrel along the axial direction; the rotating sleeve extends into the medicating barrel, is fixed together with the medicating barrel in the axial direction and matched with the medicating barrel in a sealed rotatable manner in the radial direction; a guide helical through slot is formed on the side wall of the rotating sleeve; the guide part is arranged in the rotating sleeve; and a guide block is arranged on the outer wall of the guide part, passes through the guide helical through slot and extends into the guide slot. During use, due to a diaphragm in an interface and the rotating sleeve, a medicine container and the medicating dual needle are in sealed states; therefore, an effect of absolute germfree transpiration and storage can be achieved; the rotating sleeve is rotated to drive the guide part to quickly move downwards and push the medicine container; the upper needle point of the medicating dual needle punctures a sealing plug on the medicine container, and the lower needle point of the medicating dual needle punctures the diaphragm in the interface, so that the medicine container is instantly communicated with the interior of the transfusion container; and therefore, germfree sealing is realized in the whole process of transportation, storage, butting, medicine mixing and transfusion.

Description

Short process advances prepackage type medicine adding instrument

Technical field

The present invention relates to a kind of medical apparatus and instruments, the medicine adding instrument using while relating in particular to a kind of mixed medicine.

Background technology

For the medicine in medicament reservoir being added in the solution in infusion vessel (being transfusion flexible bag or soft transfusion bottle), then mixed solution is inputted such as the patient in the Clinical Institutions of hospital.In prior art, often adopt medicine adding instrument that medicament reservoir is connected with transfusion flexible bag or soft transfusion bottle.

Medicine adding instrument of the prior art mainly comprises and adds cartridge case and dosing crosspointer, dosing cylinder forms cup-like structure, dosing crosspointer is stuck in and is added in cartridge case by crosspointer supporting seat, for mixed medicine passage is sealed, on the bottom interior wall cross section that adds cartridge case, be provided with barrier film, be provided with diaphragm seal on the top that adds cartridge case, 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.When use, this is added to cartridge case and docks with the interface of transfusion flexible bag or soft transfusion bottle, tear the diaphragm seal adding on cartridge case top, again medicament reservoir is snapped in and added in cartridge case, when medicament reservoir snaps in, also promoting dosing crosspointer moves down, the upper needle point of dosing crosspointer pierces through the sealing-plug on medicament reservoir, the broken barrier film of the lower 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 be realized mixed medicine.

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

Summary of the invention

For above shortcomings in prior art, the invention provides a kind of can under integral asepsis state, dock, mix medicine and the airtight short process propelling prepackage type medicine adding instrument of transfusion overall process.

In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:

Short process advances prepackage type medicine adding instrument, comprises and adds cartridge case, dosing crosspointer, rotary sleeve and guiding parts, and described dosing crosspointer is located at and adds in cartridge case,

Described one end that adds cartridge case is interface link, be provided with vertically gathering sill at the other end inwall that adds cartridge case, a segment distance is extended in the opposite direction at the two ends of described gathering sill on the circumference that adds cartridge case, the direction that extend on the circumference that adds cartridge case the bottom of described gathering sill with promote time rotary sleeve direction of rotation consistent;

One end of described rotary sleeve put in add in the other end of cartridge case and with add cartridge case axial restraint, radially rotatably coordinate, and rotary sleeve and add cartridge case and be sealed and matched; The sidewall of described rotary sleeve is provided with guiding spiral groove;

Described guiding parts is located in rotary sleeve, and the outer wall of guiding parts is provided with guide pad, and described guide pad passes guiding spiral groove and puts in gathering sill; Described guiding parts is flat board, grab bucket or guide cylinder; The opening of described grab bucket is corresponding with dosing crosspointer; One end of described guide cylinder is uncovered, and the opening end of guide cylinder is corresponding with dosing crosspointer, and the inner chamber of guide cylinder is medicament reservoir containing cavity.

As a preferred embodiment of the present invention, on the described inwall that adds cartridge case, be arranged with two gathering sills that arrange vertically, on the sidewall of described rotary sleeve, be symmetrical arranged two guiding spiral grooves, on the outer wall of described guiding parts, be arranged with two guide pads, one of them guide pad passes a guiding spiral groove and stretches in a gathering sill, and another guide pad passes another guiding spiral groove and stretches in another gathering sill.

As another kind of preferred version of the present invention, the other end of described rotary sleeve is sealed end.

As another preferred version of the present invention, the outer wall of described rotary sleeve is along being circumferentially with pressure ring, and described pressure ring is pressed on the other end that adds cartridge case and with it and is sealed and matched.

As a modification of the present invention scheme, described pressure ring is sealed and matched by sealing ring and the other end that adds cartridge case.

As another kind of improvement project of the present invention, described in add on the inwall of cartridge case and near interface link annular rubber cushion be set, the lower needle point of described dosing crosspointer is through annular rubber cushion.

As another improvement project of the present invention, the bottom of described interface link is provided with the clip assembly for the interface of infusion vessel is connected with interface link.

Scheme as a further improvement on the present invention, described in add on the inwall of cartridge case and be symmetrically arranged with at least two near interface link and be skid-prevention button barb-like and for preventing that medicament reservoir is loosening.

The invention has the beneficial effects as follows: while using this short process to advance prepackage type medicine adding instrument, first dock with the interface on transfusion flexible bag or soft transfusion bottle adding cartridge case, medicament reservoir is pre-loaded in the below or guiding parts of guiding parts, then rotary sleeve is arranged on to the top that adds cartridge case.Rotary sleeve by the sealing of the barrier film in interface and one end makes medicament reservoir and dosing crosspointer in sealing state, therefore, can reach transportation and store absolute aseptic.When mixed medicine, rotating rotary sleeve drives guiding parts to move down rapidly along the gathering sill that adds drug cylinder, and then medicament reservoir in drive guiding parts below or guiding parts moves down, medicament reservoir presses on dosing crosspointer and drives dosing crosspointer to move down, the upper needle point of dosing crosspointer pierces through the sealing-plug on medicament reservoir, the lower needle point of dosing crosspointer punctures the barrier film in interface, medicament reservoir was communicated with moment in transfusion flexible bag or soft transfusion bottle, whole process is all in aseptic docking, therefore, this short process advances prepackage type medicine adding instrument can realize transportation, store, docking, the overall process of mixed medicine and transfusion is sterile closed.Medicament reservoir is pre-loaded in the below or guiding parts of guiding parts, when mixed medicine, has greatly shortened guiding parts and medicament reservoir and moved down distance (realizing the mixed medicine of short process).

Accompanying drawing explanation

Fig. 1 is the structural representation that short process advances prepackage type medicine adding instrument;

Fig. 2 is the cross-sectional view that adds cartridge case;

Fig. 3 is the front view of rotary sleeve;

Fig. 4 is the cross section view along A-A direction in Fig. 3;

Fig. 5 is the cross-sectional view of guide cylinder;

Fig. 6 is that short process advances prepackage type medicine adding instrument to be connected to the structural representation on infusion vessel and before using;

Fig. 7 is that short process advances prepackage type medicine adding instrument to be connected to the structural representation on infusion vessel and after using.

In accompanying drawing: 1-add cartridge case; 2-dosing crosspointer; 4-rotary sleeve; 5-guide cylinder; 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-skid-prevention button; 17-medicament reservoir; 18-annular snap; 19-annular groove; 20-annular slot; 22-interface; 23-barrier film; 24-clip assembly.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

As shown in Figure 1, short process advances prepackage type medicine adding instrument to comprise to addcartridge case 1, dosingcrosspointer 2,rotary sleeve 4 and guiding parts.The one end that addscartridge case 1 isinterface link 6, be provided with vertically gatheringsill 8 at the other end inwall that addscartridge case 1, a segment distance is extended in the opposite direction at the two ends of gatheringsill 8 on the circumference that addscartridge case 1, and the direction of rotation of the bottom of gatheringsill 8rotary sleeve 4 in the time adding the direction of extending on the circumference ofcartridge case 1 with promotion is consistent.One end ofrotary sleeve 4 put in add in the other end ofcartridge case 1 and with addcartridge case 1 axial restraint, radially rotatably coordinate, androtary sleeve 4 with addcartridge case 1 and be sealed and matched, the sidewall ofrotary sleeve 4 is provided with thespiral groove 7 that leads.Guiding parts is located inrotary sleeve 4, and the outer wall of guiding parts is provided withguide pad 9, andguide pad 9 passes guidingspiral groove 7 and puts in gathering sill 8.Guiding parts is flat board, grab bucket or guide cylinder 5.When guiding parts adopts flat board, onlymedicament reservoir 17 directly need be placed on to dull and stereotyped below, the guide pad arranging by dull and stereotyped both sides is realized downward guiding movement, and flat board contacts withmedicament reservoir 17 and can directly promotemedicament reservoir 17 and moves down.When guiding parts adopts grab bucket, Open Side Down and corresponding withdosing crosspointer 2 in grab bucket, while using this medicine adding instrument,medicament reservoir 17 need be placed in grab bucket in advance, grab bucket ismedicament reservoir 17 promptly, realize downward guiding movement by the guide pad arranging on the outer wall of grab bucket both sides, grab bucket can directly promotemedicament reservoir 17 and move down.In the present embodiment, guiding parts adoptsguide cylinder 5, one end ofguide cylinder 5 is uncovered, the opening end ofguide cylinder 5 is corresponding withdosing crosspointer 2, the inner chamber ofguide cylinder 5 is medicament reservoir containing cavity, while using this medicine adding instrument,medicament reservoir 17 need be placed inguide cylinder 5 in advance, and the inwall ofguide cylinder 5 is in use double swerve oflimit drug container 17 effectively, can directly promotemedicament reservoir 17 move down byguide cylinder 5.

Wherein, add the structure of cartridge case as shown in Figure 2, the bottom that addscartridge case 1 isinterface link 6, and the inwall ofinterface link 6 is a throat structure, and being more conducive to like this with infusion vessel 14(is transfusion flexible bag or soft transfusion bottle) interface size mate.Add on the inwall ofcartridge case 1 andnear interface link 6annular rubber cushion 12 is set, thedosing crosspointer 2 of dosing crosspointer 2(the present embodiment adopts cross needle, be that the upper pin ofdosing crosspointer 2, lower pin andcrosspointer supporting seat 15 are one-body molded) be located at and add incartridge case 1, the lower needle point ofdosing crosspointer 2 passesannular rubber cushion 12 and is stuck onannular rubber cushion 12, and thecrosspointer supporting seat 15 ofdosing crosspointer 2 is positioned at the top of annular rubber cushion 12.Add on the inwall ofcartridge case 1 and be symmetrically arranged with at least twonear interface link 6 and be skid-prevention button 16(the present embodiment barb-like and for preventing that medicament reservoir is loosening, on the inwall that addscartridge case 1, be symmetrically arranged with four skid-prevention buttons),medicament reservoir 17 pack intoguide cylinder 5 interior after, in the time thatmedicament reservoir 17 mixes medicine with infusion vessel 14 (as shown in Figure 7), the bottle cap ofmedicament reservoir 17 is stuck in the below of skid-prevention button 16, this skid-prevention button 16 can stopmedicament reservoir 17 to retreat effectively, ensures that mixed medicine carries out smoothly.The upper inside wall that addscartridge case 1 is provided with in gathering sill 8(the present embodiment vertically, adds and on the inwall ofcartridge case 1, is arranged with twogathering sills 8 that arrange vertically).A segment distance is extended in the opposite direction at the two ends of gatheringsill 8 on the circumference that addscartridge case 1, forms thegathering sill 8 of " z " font, and the direction of rotation of the bottom of gatheringsill 8rotary sleeve 4 in the time adding the direction of extending on the circumference ofcartridge case 1 with promotion is consistent.Beforemedicament reservoir 17 andinfusion vessel 14 mix medicine (as shown in Figure 6),guide pad 9 onguide cylinder 5 is positioned at the groove of gatheringsill 8 top circumferencial directions, effectively stopedguide cylinder 5 along it axially from lower movement, thereby avoidedguide cylinder 5 to drivemedicament reservoir 17 to move down before mixed medicine; In the time thatmedicament reservoir 17 mixes medicine with infusion vessel 14 (as shown in Figure 7),guide pad 9 onguide cylinder 5 is positioned at the groove of gatheringsill 8 bottom circumferencial directions, effectively stopedguide cylinder 5 along it axially from upper movement, thereby effectively stopmedicament reservoir 17 to retreat, further ensure that mixed medicine carries out smoothly.Along being circumferentially withannular snap 18, on the top end face that addscartridge case 1, be along the circumferential direction provided withannular groove 19 at the inwall top that addscartridge case 1.

The structure ofrotary sleeve 4 as shown in Figure 3 and Figure 4, the bottom ofrotary sleeve 4 from add the upper end ofcartridge case 1 put in add incartridge case 1 and with addcartridge case 1 axial restraint, radially rotatably coordinate, androtary sleeve 4 and addcartridge case 1 and be sealed and matched, the top ofrotary sleeve 4 is sealed end.In the present embodiment, be circumferentially withpressure ring 10 on the outer wall edge ofrotary sleeve 4, belowpressure ring 10, edge is circumferentially with annular slot 20.Afterrotary sleeve 4 is arranged on and adds oncartridge case 1,annular snap 18 is positioned atannular slot 20, andsealing ring 11 is installed inannular groove 19, andpressure ring 10 is pressed on the top that addscartridge case 1 and with it and is sealed and matched by sealing ring 11.Rotating whenrotary sleeve 4,annular snap 18 is in the interior rotation ofannular slot 20, because of the sealing function ofsealing ring 11, makesrotary sleeve 4 adding incartridge case 1 both rotatably, can realize again the outer wall and the top seal that addscartridge case 1 of rotary sleeve 4.The sidewall ofrotary sleeve 4 is symmetrical arranged guidingspiral groove 7.

Be equal to replacement asrotary sleeve 4 and the one that addscartridge case 1 fit structure, can adopt following structure: the bottom ofrotary sleeve 4 be enclosed within on the top that addscartridge case 1 outside and with addcartridge case 1 axial restraint, radially rotatably coordinate, androtary sleeve 4 and addcartridge case 1 and be sealed and matched.The sidewall ofrotary sleeve 4 arranges gathering sill vertically, and be provided with guiding spiral groove at the top inwall that addscartridge case 1,guide pad 9 onguide cylinder 5, through adding the guiding spiral groove oncartridge case 1 and putting in the gathering sill ofrotary sleeve 4, rotatesrotary sleeve 4 and can drive equally guidecylinder 5 to move down.

The structure ofguide cylinder 5 is as Fig. 5, andguide cylinder 5 is located inrotary sleeve 4, andguide cylinder 5 is coaxially set with rotary sleeve 4.The opening end ofguide cylinder 5 is downward and corresponding with the upper needle point ofdosing crosspointer 2, and the inner chamber ofguide cylinder 5 is medicament reservoir containing cavity.On the outer wall ofguide cylinder 5, be arranged with twoguide pads 9, one of themguide pad 9 passes a guidingspiral groove 7 and stretches in agathering sill 8, and anotherguide pad 9 passes another guidingspiral groove 7 and stretches in anothergathering sill 8.

The bottom ofinterface link 6 is provided with theclip assembly 24 for the interface ofinfusion vessel 14 is connected with interface link 6.Interface link 6 need just can be realized and being tightly connected byclip assembly 24 with 22, interface on infusion vessel 14.On the sealed end ofrotary sleeve 4, (being the top of rotary sleeve 4) is provided withsuspension ring 13, by thesesuspension ring 13 can by this drug feeding device and with infusion vessel 14(that drug feeding device connects as shown in Figure 6) together be suspended on transfusion bracing frame used.

When this short process advances prepackage type medicine adding instrument and infusion vessel assembling, first theinterface link 6 that addscartridge case 1 is tightly connected byclip assembly 24 with theinterface 22 oninfusion vessel 14; Againguide cylinder 5 is arranged inrotary sleeve 4, and the guidingspiral groove 7 that theguide pad 9 onguide cylinder 5 is passed onrotary sleeve 4; Againmedicament reservoir 17 is placed inguide cylinder 5, then by the guide pad on guide cylinder 59 with to add gatheringsill 8 oncartridge case 1 corresponding, afterrotary sleeve 4 is arranged on and adds oncartridge case 1,guide pad 9 stretches in gatheringsill 8.

While using this short process to advance prepackage type medicine adding instrument, first will add theinterface link 6 ofcartridge case 1 andinterface 22 oninfusion vessel 14 byclip assembly 24 be tightly connected (also can adopt the mode of seam and realize and being tightly connected by the mode being threaded), in the present embodiment,infusion vessel 14 adopts transfusion flexible bag, as shown in Figure 6,medicament reservoir 17 is pre-loaded inguide cylinder 5 under aseptic condition, makemedicament reservoir 17 and dosingcrosspointer 2 in sealing state by therotary sleeve 4 of thebarrier film 23 ininterface 22 and end sealing, therefore, can reach transportation and store absolute aseptic.When mixed medicine, rotaterotary sleeve 4,rotary sleeve 4drives guide cylinder 5 to move down rapidly along thegathering sill 8 adding oncartridge case 1 inwall, and then drive themedicament reservoir 17 inguide cylinder 5 to move down,medicament reservoir 17 presses ondosing crosspointer 2 and drives dosingcrosspointer 2 to move down, the upper needle point ofdosing crosspointer 2 pierces through the sealing-plug onmedicament reservoir 17, the lower needle point ofdosing crosspointer 2 punctures thebarrier film 23 ininterface 22,medicament reservoir 17 was communicated with moment in transfusion flexible bag, as shown in Figure 7, whole process is all in aseptic docking, and whole process all drivesguide cylinder 5 to move down realization by rotating rotary sleeve 4.Andguide cylinder 5 moves down and need rotate and could realize by dependencerotary sleeve 4, so can prevent in transportation and storingguide cylinder 5 force medication containers 17.Whenguide pad 9 onguide cylinder 5 moves down in the groove of gatheringsill 8 bottom circumferencial directions,medicament reservoir 17 is pushed to bottle cap and is positioned at the below of skid-prevention button 16, effectively stopsmedicament reservoir 17 to retreat, and ensures that mixed medicine carries out smoothly.Due to this short process advance prepackage type medicine adding instrument after being pre-loaded into medicament reservoir until infused, related medicament reservoir with the parts that directly contact with medicine all in aseptic condition, therefore, can realize medicine in transportation, store, the overall process of docking, mixed medicine and transfusion is sterile closed.Medicament reservoir is pre-loaded in guide cylinder, when mixed medicine, has greatly shortened guide cylinder and medicament reservoir and moved down distance (realizing the mixed medicine of short process).

Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.

Claims (9)

1. short process advances prepackage type medicine adding instrument, comprises and adds cartridge case (1) and dosing crosspointer (2), and described dosing crosspointer (2) is located at and adds in cartridge case (1), it is characterized in that: also comprise rotary sleeve (4) and guiding parts;

Described one end that adds cartridge case (1) is interface link (6), be provided with vertically gathering sill (8) at the other end inwall that adds cartridge case (1), a segment distance is extended in the opposite direction at the two ends of described gathering sill (8) on the circumference that adds cartridge case (1), and the direction of rotation of the bottom of described gathering sill (8) rotary sleeve (4) in the time adding the direction of extending on the circumference of cartridge case (1) with promotion is consistent;

One end of described rotary sleeve (4) put in add in the other end of cartridge case (1) and with add cartridge case (1) axial restraint, radially rotatably coordinate, and rotary sleeve (4) and add cartridge case (1) and be sealed and matched; The sidewall of described rotary sleeve (4) is provided with guiding spiral groove (7);

Described guiding parts is located in rotary sleeve (4), and the outer wall of guiding parts is provided with guide pad (9), and described guide pad (9) passes guiding spiral groove (7) and puts in gathering sill (8); Described guiding parts is flat board, grab bucket or guide cylinder (5); The opening of described grab bucket is corresponding with dosing crosspointer (2); One end of described guide cylinder (5) is uncovered, and the opening end of guide cylinder (5) is corresponding with dosing crosspointer (2), and the inner chamber of guide cylinder (5) is medicament reservoir containing cavity.

2. short process according to claim 1 advances prepackage type medicine adding instrument, it is characterized in that: described in add and on the inwall of cartridge case (1), be arranged with two gathering sills (8) that arrange vertically, on the sidewall of described rotary sleeve (4), be symmetrical arranged two guiding spiral grooves (7), on the outer wall of described guiding parts, be arranged with two guide pads (9), one of them guide pad (9) passes a guiding spiral groove (7) and stretches in a gathering sill (8), and another guide pad (9) passes another guiding spiral groove (7) and stretches in another gathering sill (8).

3. short process according to claim 2 advances prepackage type medicine adding instrument, it is characterized in that: the other end of described rotary sleeve (4) is sealed end.

4. short process according to claim 3 advances prepackage type medicine adding instrument, it is characterized in that: the outer wall of described rotary sleeve (4) is along being circumferentially with pressure ring (10), and described pressure ring (10) is pressed on the other end that adds cartridge case (1) and with it and is sealed and matched.

5. short process according to claim 4 advances prepackage type medicine adding instrument, it is characterized in that: described pressure ring (10) is sealed and matched by sealing ring (11) and the other end that adds cartridge case (1).

6. short process according to claim 5 advances prepackage type medicine adding instrument, it is characterized in that: described in add on the inwall of cartridge case (1) and near interface link (6) annular rubber cushion (12) be set, the lower needle point of described dosing crosspointer (2) is through annular rubber cushion (12).

7. advance prepackage type medicine adding instrument according to the short process described in any one claim in claim 1 to 6, it is characterized in that: the bottom of described interface link (6) is provided with the clip assembly (24) for the interface of infusion vessel (14) is connected with interface link (6).

8. advance prepackage type medicine adding instrument according to the short process described in any one claim in claim 1 to 6, it is characterized in that: described in add on the inwall of cartridge case (1) and be symmetrically arranged with at least two near interface link (6) and be barb-like and for preventing the loosening skid-prevention button of medicament reservoir (16).

9. short process according to claim 7 advances prepackage type medicine adding instrument, it is characterized in that: described in add on the inwall of cartridge case (1) and be symmetrically arranged with at least two near interface link (6) and be barb-like and for preventing the loosening skid-prevention button of medicament reservoir (16).

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