CN1194587A

Movatterモバイル変換

Info

Publication number: CN1194587A
Application number: CN 96195453
Authority: CN
Inventors: 弗雷德里克·内夫塔尔
Original assignee: Nycomed Imaging AS
Current assignee: GE Healthcare AS
Priority date: 1995-07-11
Filing date: 1996-07-08
Publication date: 1998-09-30

Abstract

A piercing pin (10) for piercing a resilient end cap on a vial to enable a liquid to flow out of the vial (44) to an infusion system. The piercing pin (10) consists of a pin body (30) with a longitudinal projection (36) including at least one internal channel (37a, 37b), and perforating means (20) including an internal channel (25) extending from said internal channel (37a, 37b) in the longitudinal projection (36). Said perforating means (20) are releasable and connected to said longitudinal projection (36) via temporary fastening means (28, 38) so that they transmit the perforating force to the longitudinal projection (36) and are separated from said longitudinal projection (36) when the pin is withdrawn from the vial. Said piercing pin may thus only be used once.

Description

The puncture needle that is used for transfusion system

The present invention relates to a kind of puncture needle (piercing pin) that is used to inculcate liquid, this kind puncture needle can only use once.The puncture needle that is used to inculcate liquid is made up of a syringe needle and a needle body basically, and the pipeline that it has a perforation is used for carrying the liquid that will inculcate.

When inculcating system and be connected on the infusion bottle, the elasticity bottle cap of the needle pierces infusion bottle of this puncture needle, its needle body then is connected on the transfusion system, thus make be contained in medicament in the infusion bottle can be slowly, successive input patient's health.

Known a kind of puncture needle that is used to inculcate liquid is made by a kind of like this mode, and promptly this kind of use puncture needle of continuous several times is possible.

Unfortunately, this kind puncture needle only is only aseptic when using for the first time, unless it is sterilized again, otherwise in use thereafter, just have the danger of polluting.

At first, its syringe needle of this kind puncture needle may be polluted by the material in valve protection cap, bottle cap or the infusion bottle, and secondly its needle body may be polluted by any part of transfusion system or patient.

Another weak point that being used to of this prior art inculcated the puncture needle technology of liquid is described as follows.

The syringe needle that this kind is used to inculcate the puncture needle of liquid is designed to pierce through the elasticity bottle cap of the valve protection cap part of infusion bottle, and guides medicament to flow to transfusion system by means of an internal pipeline.When this kind puncture needle is used continuously, its syringe needle will pierce through the bottle cap of new infusion bottle in succession, and syringe needle is pushed in the bottle, then, before using again, be extracted from bottle again.Puncture repeatedly can make the tapered end rust of the syringe needle of this puncture needle, thereby makes its puncture effect variation.In addition; plastic particles that produces owing to above-mentioned wearing and tearing or the rubber particle that produces owing to the syringe needle that uses rust; can pass the internal pipeline of above-mentioned this kind puncture needle and inject patient body, avoid this problem such as the retention device of appropriate filters one class unless in transfusion system, adopt.

For fear of above-mentioned defective, just be starved of and develop a kind of puncture needle that is used to inculcate liquid, this kind puncture needle can not be used again, and still, a kind of so at present puncture needle also is not suggested.

Therefore, target of the present invention is to propose a kind of puncture needle that can only expendablely be used to inculcate liquid.

According to the present invention, the puncture needle that this target is inculcated liquid by a kind of single being used to of using reaches, this puncture needle comprises: a needle body forms the main part of a hollow, a vertical extension that partly extends along aforementioned body, this vertical extension has an internal pipeline at least, and the sting device that is used for piercing through the elasticity bottle cap of infusion bottle, this sting device comprises extended inner passage, an inner passage along above-mentioned vertical extension, and this kind puncture needle has the following improvements:

Above-mentioned sting device can constitute from the part that demolition on above-mentioned vertical extension is got off by one, and this part links together by interim clamp device and above-mentioned vertical extension, so, when above-mentioned sting device pierces through above-mentioned bottle cap, this sting device passes to above-mentioned vertical extension to puncture force, so, then when above-mentioned sting device and above-mentioned vertical extension passed above-mentioned bottle cap, above-mentioned sting device still kept fastening with above-mentioned vertical extension;

Above-mentioned sting device also has at least one ledge that can pass above-mentioned bottle cap equally; And

When this kind puncture needle was extracted out from infusion bottle, above-mentioned ledge and above-mentioned interim clamp device made above-mentioned sting device to separate from above-mentioned vertical extension, thereby make above-mentioned sting device still stay in the infusion bottle.

Below provided one embodiment of the present of invention by way of example, by the description to this embodiment, the present invention will better be understood and the feature and advantage of second aspect present invention also will show.

Certainly, these explanations and diagram all are to provide in the mode that a kind of indefiniteness illustrates purely.

Some accompanying drawings are arranged for your guidance, wherein:

Fig. 1 is a cutaway view along axis of the puncture needle that proposes of the present invention;

Fig. 2 is incomplete, a schematic front view that obtains along the observation of the II direction shown in Fig. 1;

Fig. 3 A is an incomplete side view of vertical extension of stretching out from the needle body of this puncture needle;

Fig. 3 B is a cutaway view along axis of the syringe needle of this puncture needle of obtaining along the III-III line among Fig. 4 B;

Fig. 4 A observes and a schematic front view of the end of the vertical extension that stretches out from the needle body of this puncture needle that obtains along the IVA direction shown in Fig. 3 A;

Fig. 4 B observes and a schematic bottom view of the syringe needle of this puncture needle of obtaining along the IVB direction shown in Fig. 3 B;

Fig. 5 is before the valve protection cap of the needle pierces infusion bottle of this puncture needle, an incomplete cutaway view along axis of this puncture needle and infusion bottle;

Fig. 6 and Fig. 5 are similar, but the relative position of this puncture needle and valve protection cap after showing the infusion bottle valve protection cap and being pierced through fully by this puncture needle; And

Fig. 7 and Fig. 5 are similar, but show the situation after infusion bottle and this puncture needle are separated from each other.

Comprise at this puncture needle 10 shown in Fig. 1:

Thesyringe needle 20 of dismountable a, hollow, the sting device that thissyringe needle 20 is made up of base part 24 and tapered end 22 constitutes, and is used for piercing through theelasticity bottle cap 46 in thevalve protection cap 42 ofinfusion bottle 44; And

The needle body 30 that constitutes by the main part 34 of a hollow, a vertical extension 36 that extends along aforementioned body part 34, and annular sidewall 32 along aforementioned body part 34 extend out and be at least part around above-mentioned vertical extension 36.Needle body 30 is cylinders of an annular section, and the external diameter of its sidewall 32 is bigger than the external diameter of main part 34.It also is the cylinder of an annular section that above-mentioned sidewall 32 encloses in it, and it is around vertical extension 36, and these vertical extension 36 its peripheries are columnar basically, have annular section.Main part 34, sidewall 32 and vertical extension 36 all are aligned and are coaxial in first longitudinal axis 39.

Base part 24 in thehollow pinhead 20 is designed to interim being anchored on the vertical extension 36 that stretches out from needle body 30.

For this reason, this interim clamp device 28,38 be loaded on the base part 24 in the above-mentionedhollow pinhead 20 and the free end of above-mentioned vertical extension 36 of from needle body 30, stretching out on.

As what from Fig. 3 A, 3B and 4A, 4B, can see, consistent with a kind of useful characteristic, above-mentioned interim clamp device is by constituting at free-ended first sliding surface 38 of vertical extension 36 and the guidance system that second sliding surface 28 on above-mentioned base part 24 is formed, this second sliding surface 28 have one with first sliding surface, 38 complementary parts, this first sliding surface 38 and second sliding surface 28 concur so that above-mentionedhollow pinhead 20 reversibly is placed on the above-mentioned tubular extension 36 in the needle body 30.And it is T shape that second sliding surface 28 is constructed to its section.

In this embodiment, first sliding surface 38 and second sliding surface 28 concur in reversible rectilinear motion, thereby thesyringe needle 20 of guiding hollow is with respect to the end moving linearly of vertical extension 36.

First sliding surface 38 is made of two longitudinal flutings, the periphery that places vertical extension 36 that these two grooves are symmetrical.The inwall of these grooves can prevent thathollow pinhead 20 from respect to vertical extension 36 any rotation taking place.

Second sliding surface 28 has and the complementary interior circumference of the outer perimeter of above-mentioned first sliding surface 38, particularly it has two symmetrical vertical ledges, these two vertical ledges are about vertical vertical plane of symmetry midplane 12 symmetries in other words, and this plane of symmetry in other words midplane 12 determined a quadrature plane of symmetry for making as a whole puncture needle 10.

Above-mentioned vertical extension 36 is columnar in the part except its free end, have annulus table section, and above-mentioned first sliding surface 38 just is positioned at its free end.

According to a basic feature of the present invention, be used again in order to prevent this puncture needle 10, be provided with ademountable syringe needle 20, when puncture needle and infusion bottle were separated, thissyringe needle 20 must separate from needle body 30.For this reason, this hollow pinhead also has a ledge 26, and this ledge 26 can and not pass thebottle cap 46 ofinfusion bottle 44 to 20 inhibitions of syringe needle yet in piercing process.This protuberance 26 comprises: under the situation that above-mentionedsting device 20 is installed on the needle body 30 by above-mentioned interim clamp device 28,38, direction along a protuberance 26 towards main part 34, this protuberance 26 its surfaces outer is with slight overhanging, so, then when puncture needle 10 is extracted out frominfusion bottle 44,bottle cap 46 can become with above-mentioned protuberance 26 and joins.

Referring to Fig. 1, can see that this protuberance 26 is radially outstanding from the part of the periphery of the vertical extension 36 of cylindrical shape, and whensyringe needle 20 was connected in needle body 30, in given embodiment, the part of above-mentioned periphery had formed the surface of protuberance 26 towards main part 34 extensions.Whensyringe needle 20 was installed on the needle body 30,syringe needle 20 had been determined and the second parallel longitudinal axis 29 of above-mentioned first longitudinal axis 39.

In given embodiment, protuberance 26 extends along second sliding surface 28, and it has the extension of an outside.As what can see in Fig. 2 and Fig. 4 B, its shape of this protuberance is the hollow semicircular cylinder of one section elliptic jet, thereby the longitudinal edge of this hollow semicircular cylinder has been formed vertical ledge of second sliding surface 28 by bending inwards.The free end end of protuberance 26 is planar and vertical with second longitudinal axis 29, and this end has formed a plane, and when puncture needle 10 spun off frominfusion bottle 44, the inner surface ofbottle cap 46 just can bear against this plane.So, suppose effect because of above-mentioned sliding surface guidance system, syringe needle can be easy to throw off from needle body 30, and thenbottle cap 46 can prevent that justhollow pinhead 20 from returning, and syringe needle is come off in infusion bottle.

Theinfusion bottle 44 that the liquid that will be transferred is housed is to be made of a bottle basically, the bottle of being made, being hadelasticity bottle cap 46 andvalve protection cap 42 by glass of for example saying so.Infusion bottle 44 shown in the part comprises avalve protection cap 42 in Fig. 5 to 7, thisvalve protection cap 42 wraps in the peripheral of bottleneck and has partly covered the opening of bottle, and the central area of having reserved opening enables to be used, and thesyringe needle 20 of puncture needle 10 can pass this central area.The hollow cylinder of an annular section of being made by elastomeric material has covered the inboard of infusion bottle bottleneck portion, and also madeelasticity bottle cap 46, thiselasticity bottle cap 46 has one deck thin-walled to cover above-mentioned hollow cylinder fully, thus, has constituted the parts of sealing infusion bottle.The back side of that of thevalve protection cap 42 of the opening that has covered bottle of the front ofbottle cap 46 and part forms plane contact.

The periphery ofvalve protection cap 42 is columniform and its bottom has one section lip limit to stretch out to the outer lateral buckling of vial.

The sidewall of above-mentioned needle body is designed to hold the form of periphery of thevalve protection cap 42 of infusion bottle, and serves as a supporting member thus for infusion bottle.At first, sidewall 32 must have elasticity to a certain degree.And must remain on due position to valve protection cap makes it unlikely the disengaging from puncture needle 10 and comes unsuitable the time.For this reason, on the sidewall 32 of above-mentioned needle body, there are a plurality of vertical slits that evenly separate to each other to extend along its total length.

The free end 33 of above-mentioned sidewall 32 have a flange from its inner surface radially to projecting inward, so, when above-mentionedvalve protection cap 42 snaps in the above-mentioned needle body 30 and fully when above-mentioned infusion bottle has any tendency of vertically throwing off from puncture needle 10, this flange 43 just can serve as the edge of bottom surface that a back-up ring or retainer are used for blocking thevalve protection cap 42 ofinfusion bottle 44.

So, wheninfusion bottle 44 is in certain position on puncture needle 10, because the effect of above-mentioned slit,valve protection cap 42 can be expanded and encase to sidewall 32, then, whenvalve protection cap 42 was encased fully by sidewall 32, sidewall 32 can return to its initial shape, and flange 43 can be pressed in, and (see figure 6) comes from puncture needle 10 upper edge axial separation to preventinfusion bottle 44 on the base ofvalve protection cap 42.

In addition, in order to prevent that the joint betweeninfusion bottle 44 and the puncture needle 10 from other the axial changing of the relative positions taking place, when above-mentioned valve protection cap snaps in the above-mentioned needle body 30 fully, should guarantee to have on the circumference of inner surface of the coupling part between the main part 34 of brown sidewall 32 and above-mentioned needle body 30 one to be suitable for the support section 45 that matches with the end face of thevalve protection cap 42 of above-mentioned infusion bottle, be favourable like this.

A kind of appropriate technology that is used for making needle body guarantees that main part 34 has circle, the symmetric outer surface around first longitudinal axis 39:

Enclosing 31 in the above-mentioned sidewall 32 is columniform for above-mentioned first longitudinal axis 39; And

The periphery of the above-mentionedvalve protection cap 42 ofinfusion bottle 44 is columniform, its diameter be less than or equal to above-mentioned sidewall 32 in the diameter that encloses.

The present invention's situation on the other hand will be described as follows, and relate to and be used for allowing that to be transferred the mobile therein passage of liquid relevant.Being transferred liquid must flow out from defeated stream bottle by puncture needle, and is directed flowing to transfusion system.This aspect is not described in detail herein, but the function of this aspect is to finish by the part 40 of the bottom of needle body 30, this part 40 contains the parts that match with certain element of transfusion system, this element of transfusion system, such as be one section flexible pipe, will be connected on theinfusion bottle 44 by puncture needle 10.This part 40 of needle body 30 bottoms comprises the bottom of the axial passage that passes needle body 30, and this passage is used for guiding and is transferred flowing of liquid.This passage is a centrage with first longitudinal axis 39, and it comprises the inner passage 35 and the extension thereof of the main part 34 of needle body 30, i.e. the first inner passage 37a in vertical extension 36.Go out as shown in FIG. 1, the main part 34 of needle body 30 contains an inner passage 35, extend the inner passage 37a of above-mentioned vertical extension 36 from this inner passage 35,37b, the barrier film that the latex that cuts off in advance with a process is made is sealed the end of the inner passage 35 of this main part.

This barrier film also can be made by rubber, so just need be through cuing off, and this barrier film is used for guaranteeing that the system that the puncture needle 10 that proposed by the present invention andinfusion bottle 44 constitute is an antiseep.When infusion bottle be positioned on the puncture needle should the position be arranged the time, liquid will flow through the inner passage 37a and 35 of needle body 30, and because above-mentioned membranous effect, liquid that can not further flows out again.Afterwards, this puncture needle 10 just is connected on the transfusion system: be transferred liquid and can flow into whole transfusion system thereby the syringe needle (not shown) of another hollow pierces through above-mentioned barrier film.After transfusion finishes, infusion bottle separates from puncture needle, puncture needle also breaks away from from transfusion system and comes: because above-mentioned barrier film is flexible, it can seal its joint-cutting again, thereby prevents that the liquid in the inner passage 35 of any main part 34 that is deposited in needle body 30 from flowing out.

It is the passage 25 of centrage with second longitudinal axis 29 thathollow pinhead 20 has one.Pass through interim clamp device 28 atsyringe needle 20,38 are loaded under the situation of the appropriate location on vertical extension 36 of above-mentioned needle body, this vertical extension just has one second inner passage 37b, this inner passage 37b with second longitudinal axis 29 be centrage and with the inner passage 25 ofsyringe needle 20 point-blank.

This second inner passage 37b can be connected on the air vent or air inlet on its next door, bottom, and it is connected with the inner passage 25 ofsyringe needle 20; So these two inner passage 37b and 25 can will go into infusion bottle through filtering extraneous air conductance, thereby make infusion bottle its content of can turning.The base part 24 ofsyringe needle 20 necessarily can not cover in the front end of the first inner passage 37a of vertical extension 36, and for this purpose, in the side that the first passage 37a of vertical extension 36 exposes, the front end of this vertical extension 36 is cut sth. askew or wedge shape (Fig. 1).In addition, the base part 24 ofsyringe needle 20 contains a projection 27, on the end of the first inner passage 37a, the protrusion that the outline of this projection 27 is very slight a bit, and the part of the outline of its interior profile and the second inner passage 37b is complementary, and the second inner passage 37b extends upward and exceeded the first inner passage 37a.The interior profile of projection 27 is used for preventing that syringe needle 20 from taking place with respect to vertical extension 36 on the transverse direction of being determined by midplane 12 any laterally mobile.

For instance, the present invention proposes is used to carry the puncture needle 10 of liquid to make with the plastic material of injection mould molding.In Fig. 7, several steps in succession of using this puncture needle have been shown at Fig. 5.

Situation when Fig. 5 shows puncture needle 10 andinfusion bottle 44 and also do not link together: the middle body of the end face ofvalve protection cap 42 is facing to the tapered end ofsyringe needle 20, and the longitudinal axis ofinfusion bottle 44 is parallel with first longitudinal axis 39 of needle body, and overlaps basically with first longitudinal axis 39 of needle body.

Afterwards, the direction that puncture needle 10 arrow 13 in Fig. 5 provides moves, and the tapered end 22 of thesyringe needle 20elasticity bottle cap 46 that pierces throughinfusion bottle 44 makesyringe needle 20 and vertically the major part of extension 36 all penetrate infusion bottle 44.In casevalve protection cap 42 snaps in the front portion (Fig. 6) of needle body 10 fully, owing to the effect of enclosing 31 in the sidewall 32,valve protection cap 42 laterally can not produce significant moving with respect to needle body 30.And because the preceding retainer that is made of the inboard transverse edge of support section 45 and flange 43 and the effect of back retainer respectively,valve protection cap 42 axially can not produce significant moving with respect to body acupuncture 30.Bottlecap 46 is pierced, and the lip limit of puncture orifice leans against backrush on the outer surface of vertical extension 36.So, just obtained an infusion bottle and the device that puncture needle constitutes, for transfusion system, this device is firm and suitable.

After transfusion is finished, just according to the pulling out to draw and turn or theinfusion bottle 44 of part turned letter more or less vertically of the direction shown in the arrow in Fig. 7 14.

Sidewall 32 is by thereon vertical slit and have elasticity, and this sidewall 32 can open andvalve protection cap 42 is spun off, and when the horizontal bottom surface of protuberance 26 was run on the lip limit of the backrush of the puncture orifice on thebottle cap 46,syringe needle 20 just can be pressed on the bottle cap 46.In this way,bottle cap 46 is retained insyringe needle 20 in the infusion bottle, and the lip limit rollback of puncture orifice is sealed bottle cap again:syringe needle 20 is trapped within theinfusion bottle 44, and being used to of proposing according to the present invention carries the puncture needle 10 of liquid not to be used again.

Claims

1. the puncture needle that is used to inculcate liquid that uses of a single, (10), comprise: a needle body, (30), form the main part of a hollow, (34), along the aforementioned body part, (34) an extended vertical extension, (36), this vertical extension, (36) has an inner passage at least, (37a, 37b) and be used for piercing through infusion bottle, (44) elasticity bottle cap, (46) sting device, (20), this puncture component, (20) comprise one along above-mentioned vertical extension, (36) inner passage, (37a, 37b) extended inner passage, (25)

It is characterized in that: above-mentioned sting device (20) is made of a dismountable part that is connected in above-mentioned vertical extension (36), and this part is by interim clamp device (28,38) link together with above-mentioned vertical extension (36), so, when this sting device (20) pierces through above-mentioned bottle cap (46), this sting device (20) passes to above-mentioned vertical extension (36) to puncture force, and when this sting device (20) and above-mentioned vertical extension (36) pass above-mentioned bottle cap (46), this sting device (20) still keeps fastening with above-mentioned vertical extension (36)

And when puncture needle (10) is extracted from infusion bottle (44), above-mentioned interim clamp device (28,38) make above-mentioned sting device (20) to separate, thereby above-mentioned sting device (20) is still stayed in the infusion bottle from above-mentioned vertical extension (36).

2. the puncture needle (10) that is used to inculcate liquid as claimed in claim 1 is characterized in that: above-mentioned sting device (20) also has a ledge (26) that can pierce through above-mentioned bottle cap equally at least.

3. the puncture needle (10) that is used to inculcate liquid as claimed in claim 1 or 2, it is characterized in that: above-mentioned sting device comprises a hollow pinhead (20) and a base part (24), this hollow pinhead (20) has the end (22) of doing wedgewise and is used for piercing through above-mentioned bottle cap (46), and this base part (24) be configured to can be interim the above-mentioned vertical extension (36) that is anchored on needle body (30) on.

4. the puncture needle (10) that is used to inculcate liquid as claimed in claim 3, it is characterized in that: above-mentioned interim clamp device (28,38) at first be installed on the above-mentioned base part (24) of hollow pinhead (20), next is installed on the free end of above-mentioned vertical extension (36) of needle body (30).

5. the puncture needle (10) that is used to inculcate liquid as claimed in claim 4, it is characterized in that: above-mentioned interim clamp device is included in free-ended first sliding surface (38) of vertical extension (36) and a guidance system of second sliding surface 28 on above-mentioned base part (24) constitutes, this second sliding surface (28) comprises one and the complementary part of above-mentioned first sliding surface (38), and this first sliding surface (38) and second sliding surface (28) concur so that on the reversible above-mentioned cylindrical shape extension (36) that is placed in the needle body (30) of above-mentioned hollow pinhead (20).

6. the puncture needle (10) that is used to inculcate liquid as claimed in claim 5, it is characterized in that: the section of above-mentioned second sliding surface (28) is a T shape.

7. the puncture needle (10) that is used to inculcate liquid as claimed in claim 2, it is characterized in that: above-mentioned ledge (26), pass through above-mentioned interim clamp device (28 at above-mentioned sting device (20), when 38) being in position on the needle body (30), the direction of main part (34) along a protuberance (26) towards needle body, be with horizontal overhangingly at its surface outer, make when puncture needle (10) is extracted out from infusion bottle (44), bottle cap (46) can dock with above-mentioned protuberance (26).

8. as the described puncture needle (10) that is used to inculcate liquid of above any one claim, it is characterized in that: needle body (30) also has sidewall (32), this sidewall (32) along aforementioned body part (34) extend out and be at least part around above-mentioned vertical extension (36).

9. the puncture needle (10) that is used to inculcate liquid as claimed in claim 8 is characterized in that: the above-mentioned sidewall (32) of needle body (30) has a plurality of neat to each other vertical slits that separate and extends along its total length.

And the free end (33) in above-mentioned sidewall (32) has a flange radially to protrude from its inner surface, make to snap in fully in the above-mentioned needle body (30) and have anyly when puncture needle (10) is gone up the tendency of vertical disengagement when above-mentioned infusion bottle when above-mentioned valve protection cap (42) that this flange (43) just can serve as the bottom surface that a back-up ring is used for blocking the valve protection cap (42) of infusion bottle (44).

10. as the described puncture needle that is used to inculcate liquid of above any one claim, it is characterized in that: the main part (34) of needle body (30) has been determined one first longitudinal axis (39), vertically first inner passage (37a) of extension (36) is a centrage around this first longitudinal axis (39) and with it just, described first inner passage (37a) is the extension of inner passage (35) of the main part (34) of needle body (30)

And second longitudinal axis (29) has been determined in the inner passage (25) of above-mentioned sting device (20);

And, vertically extension (36) also has one or more and states second longitudinal axis (29) and be second inner passage (37b) of centrage, pass through interim clamp device (28 at above-mentioned sting device (20), when 38) being loaded on position on the needle body (30), this second inner passage (37b) has just constituted the extension of the inner passage (25) of this sting device (20), and this second inner passage (37b) makes and can enter above-mentioned infusion bottle (44) through filtering air outside.

11. as the described puncture needle that is used to inculcate liquid of above any one claim, it is characterized in that: when above-mentioned valve protection cap (42) snaps in the above-mentioned needle body (30) fully, have one to be suitable for the support section (45) that matches with the end face of the valve protection cap (42) of above-mentioned infusion bottle on the circumference of the inner surface of the coupling part between the main part (34) of above-mentioned sidewall (32) and above-mentioned needle body (30).

12. as the described puncture needle (10) that is used to inculcate liquid of above any one claim, it is characterized in that: the main part (34) of needle body (30) contains an inner passage (35), extend the inner passage (37a of above-mentioned vertical extension (36) from this inner passage (35), 37b), the barrier film made of the latex that cuts off in advance with a process is sealed the end of the inner passage (35) of this main part.