CN102198303A - Catheter introducer - Google Patents
Catheter introducer Download PDFInfo
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- CN102198303A CN102198303A CN2010101385234A CN201010138523A CN102198303A CN 102198303 A CN102198303 A CN 102198303A CN 2010101385234 A CN2010101385234 A CN 2010101385234A CN 201010138523 A CN201010138523 A CN 201010138523A CN 102198303 A CN102198303 A CN 102198303A
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- syringe needle
- needle safety
- joint
- conductor
- safety
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Abstract
The invention relates to a catheter introducer, which comprises a tubular introducer sheath, an introducer joint with a far end part and a near end part, a needle, a needle joint and a needle safety device, wherein the far end part of the introducer joint is connected to the near end of the introducer sheath, while the near end part defines a cavity; the needle extends to pass through the introducer joint and the introducer sheath and is provided with a near end and a far end which are opposite to each other, wherein a needle tip is formed at the far end; the needle joint is attached to the near end of the needle; and the needle safety device is arranged on the needle in a sliding mode, wherein when the needle passes through the introducer joint and the introducer sheath, the needle safety device is kept in the cavity of the introducer joint, and when the needle is pulled out of the introducer sheath, the needle safety device can be taken out of the introducer joint after the needle tip is accommodated in the needle safety device.
Description
Technical field
The present invention relates to pin stripping type in a kind of catheter guide, particularly shop (over-the-needle peel-away) catheter guide, this guide comprises: tubular guidewire lead device sheath; Conductor joint with distal portions and proximal part, wherein, distal portions is connected to the near-end of conductor sheath, and described proximal part limits a chamber; Extend through the conductor joint with the conductor sheath and have relative near-end and the syringe needle of far-end, wherein, far-end forms needle point; And the syringe needle joint that is attached to the near-end of syringe needle.
Word used herein " near-end " is meant the nearest position of clinician that distance is for example used this equipment on the equipment.On the contrary, word " far-end " is meant on the equipment and for example is inserted into the distal needle in the venous patient apart from clinician position farthest.
Background technology
The catheter guide of the above-mentioned type is extensively known, and for example is used for the muscular tissue that convenience is inserted conduit or other medical equipments or be positioned over patient's vascular system or patient.This class conduit can for example be used for knee prosthesis, hip replacement or for example cesarean etc. other use relevant pain management.
The peelable catheter guide of tradition (be also referred to as peelable, can divide or knock-down catheter guide) comprises a pair of wing that crosses out from the conductor joint.
When using the stripping type catheter guide, the clinician holds syringe needle joint and conductor joint, and the distal portions of syringe needle is inserted patient's skin in selected position.The clinician pushes ahead this equipment, and for example straight way is confirmed venipuncture, for example when blood enters in the blood back cavity that is formed in the syringe needle joint.After confirming venipuncture, the clinician pushes the distal portions of conductor sheath patient's vein and withdraws from syringe needle.By correct placement conductor sheath,, the clinician passes this conductor sheath up to this armarium correctly is positioned in the patient's vascular system so can pushing with the proximal openings of armarium such as for example conduit insertion conductor sheath and with this armarium by the conductor joint.
After placing armarium, the clinician with the conductor sheath from withdrawing from by venipuncture site.The clinician is divided into corresponding discrete two halves by reversing and/or draw back the described wing up to two and half parts of conductor joint and conductor sheath separately along the line of being located in conductor joint and the conductor sheath of taking apart with conductor joint and conductor sheath.Like this, the clinician can take out conductor joint and conductor sheath when patient's venous conduit remains on original position being inserted into.
Because for example the appearance of HIV (human immunodeficiency virus) (HIV), hepatitis B virus (HBV) and hepatitis C virus blood-borne pathogens such as (HCV) is more and more frequent, the personnel that need protection clinician or other medical personnel or handle catheter guide exempt to avoid to touch sharp needle point in accident after conductor sheath and conductor joint are withdrawn from syringe needle.
Summary of the invention
An object of the present invention is to provide a kind of catheter guide, this catheter guide can provide to produce reliably and avoid withdrawing from the back by accidental needle sticks from conductor sheath and conductor joint at syringe needle.
This purpose is to be realized by the catheter guide of the feature with claim 1.
Catheter guide of the present invention comprises: tubular guidewire lead device sheath; Conductor joint with distal portions and proximal part, wherein, distal portions is connected to the near-end of conductor sheath, and described proximal part defines a chamber; Syringe needle, this syringe needle extend through conductor joint and conductor sheath and have relative near-end and far-end, and wherein, described far-end forms needle point; The syringe needle joint, this syringe needle joint is connected to the near-end of syringe needle; And syringe needle safety, these syringe needle safety are arranged on the syringe needle slidably, wherein, described syringe needle safety are retained in the chamber of conductor joint when syringe needle passes conductor joint and conductor sheath, and when syringe needle was withdrawn from from the conductor sheath, the syringe needle safety can take out from the conductor joint after needle point is taken in the described syringe needle safety.
The syringe needle safety are used as protection at needle point by automatically cover needle point in the process of withdrawing from syringe needle from the conductor sheath.Thereby the syringe needle safety for example be used to prevent the clinician after the patient takes out syringe needle by accidental needle stab.Therefore, can after using syringe needle, abandon syringe needle safely.
The advantageous embodiments of catheter guide according to the present invention, the distal component of syringe needle safety with form fit be contained in the chamber of conductor joint.Thereby realize that the syringe needle safety are seated in the conductor joint securely.Preferably, the distal component of syringe needle safety is substantially fully by in the chamber of income conductor joint.
According to another embodiment, the syringe needle safety comprise the L shaped extension that is roughly of two relative both sides that are formed on the syringe needle safety, preferably are formed on its remote area.Each L shaped extension can have apart from the main body certain distance of the distal component of syringe needle safety, generally along axially extended axial component." axially " used herein is by the longitudinal axis definition of the syringe needle that extends through the syringe needle safety.
The proximal part of conductor joint can comprise two slots of the relative both sides that are formed on the chamber, particularly is formed in the different piece of conductor joint, and wherein, after the conductor joint was taken apart, described different piece limited two halves separately.Preferably, the slot of conductor joint is used to hold the axial component of the L shaped extension of being roughly of syringe needle safety, particularly hold, thereby guarantee that the syringe needle safety are seated in the conductor joint securely with respect to the correct rotation location and the syringe needle safety of conductor joint with form fit ground.
Because the axial component that is roughly L shaped extension interlock in the slot of conductor joint of syringe needle safety, the two halves that the syringe needle safety help to prevent the conductor joint are taken apart by accident, thereby also help the catheter guide reliably working.Therefore; by as long as the two halves of conductor joint are locked mutually during interlock mutually and by protecting afterwards needle point from the conductor sheath, withdrawing from syringe needle at syringe needle safety and conductor joint; syringe needle insurance transposition has dual-use function, is specially lock function and safeguard function.
According to another embodiment, provide the axial component of the locking device extension that being roughly of syringe needle safety is L shaped to remain in the slot.Described locking device helps not withdraw from fully from the conductor sheath as yet and needle point is not fixed on the syringe needle safety in the conductor joint when entering the syringe needle safety as yet at syringe needle.Therefore, locking device guarantees that syringe needle moves up to needle point with respect to the syringe needle safety and taken in safely in the syringe needle safety, thereby strengthened the correct function of syringe needle safety.
Preferably, comprise at the locking device of working between conductor joint and the syringe needle safety: locking projections and the lock recess on corresponding another parts on parts separately.For example, can in the zone of the far-end of the L shaped extension of being roughly of syringe needle safety, corresponding locking projections be set, corresponding depressed part be set and in the conductor joint, limit in the wall of slot.
According to another embodiment, the distal component of syringe needle safety has the shape that is roughly cup-shaped.The proximal piece of syringe needle safety can be roughly tubulose.The needle point that these shapes help to prevent to take in the syringe needle safety stretches out from the side of syringe needle safety, thereby increases the defencive function of pin safety.
Advantageously, the proximal piece of syringe needle safety partly is contained in the distal component of syringe needle safety.In order to guarantee that piped proximal piece is placed in the distal component of cup-shaped securely, preferably the internal diameter with the distal component of the external diameter of piped proximal piece and cup-shaped is complementary.Can be with tubulose proximal piece and cup-shaped distal component for example by binding agent and/or be welded to connect and interconnect preferably permanent connection.
According to another embodiment, each is all made by plastic material in the distal component of syringe needle safety and/or the proximal piece.Select this material to allow easy and produce the syringe needle safety at low cost.Yet, also can use other materials usually, metal material is for example made the distal component and/or the proximal piece of syringe needle safety.
According to another embodiment, the syringe needle safety comprise alligator clamp, are preferably metal clip, and this alligator clamp can prevent that needle point from stretching out from the far-end of syringe needle safety after entering the syringe needle safety.
Described alligator clamp is roughly V-arrangement.Especially, alligator clamp can comprise first lower limb and second lower limb, and the free end of first lower limb and second lower limb stretches to the near-end of syringe needle safety usually.
Preferably, first lower limb of alligator clamp is fixedly placed between the distal component of syringe needle safety and the proximal piece and/or second lower limb of alligator clamp extends across inner chamber in the remote area of the proximal piece that is formed at the syringe needle safety diagonally when breaking away from syringe needle, thereby stops that needle point stretches out from the far-end of syringe needle safety.In other words, alligator clamp is arranged such that when syringe needle extends fully through the syringe needle safety and compressed by syringe needle, and lax when throwing off with syringe needle, makes second lower limb of described alligator clamp take its diagonal " stopping " position.Because the elasticity of alligator clamp is even this alligator clamp was guaranteed also can protect needle point reliably when withdrawing from syringe needle from the conductor sheath after the longer resting period.
Follow according to another embodiment, be provided with the correct rotation location that guider is guaranteed syringe needle joint under the assembled state of catheter guide.Preferably, be provided with guider on the syringe needle joint and on the syringe needle safety.Like this, can the syringe needle joint correctly be located with respect to the conductor joint, and the syringe needle safety are correctly located with respect to the conductor joint by the L shaped extension in the slot that is contained in the conductor joint by the syringe needle safety.
For example, guider can be included in two grooves that extend vertically the relative both sides of the proximal piece of syringe needle safety, and stretches out and be used for being received into two guide protrusions of the groove (preferably holding with form fit ground) of syringe needle safety vertically from the syringe needle joint.
According to another embodiment, syringe needle extends through the axial hole in the proximal piece of syringe needle safety, and wherein, the cross section in this hole and the main outline of syringe needle are complementary.Preferably, syringe needle has the part of expanding near near needle point, and this makes the external diameter of syringe needle see diameter greater than this hole in a direction at least.The described part of expanding prevents when needle point is taken in the inner chamber of proximal piece of syringe needle safety these syringe needle safety from the syringe needle slippage, thereby further improves the defencive function of syringe needle safety.
Another purport of the present invention is the tip needle safety that are used to protect medical apparatus and instruments (for example catheter guide of the above-mentioned type or venous duct device), and this device comprises distal component and proximal piece and is formed on two of relative both sides on the main body of distal component and is roughly L shaped extension (claim 14).In addition, these syringe needle safety can be constructed to similar to the syringe needle safety of above-mentioned catheter guide.
Description of drawings
In explanation below and the accompanying drawing the preferred embodiments of the present invention are described, in the accompanying drawings:
(a) first longitudinal sectional drawing, (b) side view that Fig. 1 illustrates according to catheter guide of the present invention reach (c) second longitudinal sectional drawing;
Fig. 2 illustrates: (a) is attached with the axonometric chart of conductor joint of the catheter guide shown in Figure 1 of conductor sheath, (b) do not have the view of far-end of the conductor joint of conductor sheath, and the view of near-end that (c) does not have the conductor joint of conductor sheath;
Fig. 3 illustrates: (a) be attached with the axonometric chart of syringe needle joint of catheter guide shown in Figure 1 of syringe needle and the axonometric chart of syringe needle joint that (b) does not have the catheter guide shown in Figure 1 of syringe needle;
Fig. 4 illustrates: (a) be in the axonometric chart of syringe needle safety of catheter guide shown in Figure 1 of assembled state and the axonometric chart of syringe needle safety that (b) is in the catheter guide shown in Figure 1 of the state of disassembling;
Fig. 5 illustrates (a) first side view, (b) second side view of the syringe needle safety shown in Figure 4 that syringe needle stretches out fully and (c) longitudinal sectional drawing; And
Fig. 6 illustrates the longitudinal sectional drawing that needle point is closed at syringe needle safety shown in Figure 5 wherein.
The specific embodiment
Fig. 1 illustrates direct puncture stripping type catheter guide of the present invention.Described catheter guide comprises tubular guidewire lead device sheath 10, and this conductor sheath has the proximal end region 12 that is connected with conductor joint 14.
In addition, described catheter guide comprises syringe needle 16, and this syringe needle has far-end that forms needle point 18 and the near-end that is attached to syringe needle joint 20.Before using catheter guide, described syringe needle 16 extends through conductor joint 14 and conductor sheath 10 always, and needle point 18 reaches outside the far-end of conductor sheath 10.
In order to prevent before using catheter guide by needle point 18 accidental punctures microscler protecting tube 22 to be installed on conductor joint 14, this protecting tube covers the length of conductor sheath 10 and the needle point 18 that stretches out from conductor sheath 10.
In the transitional region between distal portions 24 and proximal part 26, be formed with funnel-shaped structure 28 in conductor joint 14, this helps after conductor sheath 10 is inserted into patient's vein armarium (for example conduit) to be imported in the conductor sheath 10.In addition, both wings 30 cross out from the proximal part 26 of conductor joint 14.
As can be seen from Figure 2, the distal portions 24 of conductor joint 14 and proximal part 26 boths are formed by a pair of relative, the axially extended half tubular part that is roughly, and these parts limit first half 32 and second half 34 of conductor joints 14.Before using, the first half and the second half of conductor joint 14 interconnects in the zone of the distal portions 24 of conductor 14 at least.
After medical apparatus and instruments (for example conduit) has been imported in the patient's vein by conductor sheath 10, use the people (for example clinician) of this catheter guide that conductor sheath 10 is withdrawed from from the position of venipuncture.By reversing and/or drawing back the wing 30,, make it possible to remove conductor joint 14 and conductor sheath 10 from conduit so the clinician is divided into two halves 32,34 separately with conductor joint 14, thereby also takes conductor sheath 10 apart.For the ease of in two, the axially extended groove 36 that plays the tear line effect is set in the relative both sides of conductor joint 14 with conductor joint 14.Similarly, corresponding tear line (not shown) can be set on conductor sheath 10.
The proximal part 26 of conductor joint 14 defines cylindrical cavity 38, and this cylindrical cavity is arranged to concentric and towards the proximal lateral of conductor joint 14 opening (Fig. 2 (c)) with the axis of conductor joint 14.38 relative both sides are formed with two slots 40 in the chamber.Described slot 40 has and is roughly orthogonal cross section and extends to vertically the conductor joint 14 from its proximal lateral.
As seen from Figure 3, needle hub 16 comprises two relative tube portions 44 that main body 42 and far-end from main body 42 extend vertically.
Referring again to Fig. 1, syringe needle safety 46 be arranged on the syringe needle 16 slidably and be disposed in conductor joint 14 and syringe needle joint 20 between.Discuss syringe needle safety 46 in more detail below with reference to Fig. 4 to Fig. 6.
In the present embodiment, both make the distal component 48 of syringe needle safety 46 and proximal piece 50 by plastic material, and alligator clamp 52 is made by metal material, for example spring steel.
The proximal piece 50 of syringe needle safety 46 is a tubulose substantially, and wherein, the distal portions of proximal piece 50 has the external diameter that the internal diameter with the cup shaped body 53 of distal component 48 is complementary.
Under the assembled state of syringe needle safety 46, distal component 48 is installed on the remote area of proximal piece 50 and for example by binding agent or by being welded to connect by the permanent there that is fixed to.
The distal component 48 of syringe needle safety 46 and proximal piece 50 define hole 58 and 60 respectively separately, are used to hold syringe needle 16.The part 62 (seeing Fig. 3 (a)) of expanding that the diameter in the hole 58 in distal component 48 is adjusted in the remote area that allows to be disposed in syringe needle 16 is passed through, and the part 62 of expanding of syringe needle 16 can't be passed through the hole 60 of proximal piece 50, thereby avoids the far-end slippage of syringe needle safety 46 from syringe needle 16.The part 62 of expanding of syringe needle 16 can for example be formed by compression joint technique.
As Fig. 5 (c) and shown in Figure 6, the proximal piece 50 of syringe needle safety 46 defines inner chamber 64 in its remote area, and this inner chamber has the diameter bigger than the diameter in hole 60.
Under the assembled state of syringe needle safety 46, the first short lower limb 66 of alligator clamp 52 is disposed between proximal piece 50 and the distal component 48 (radially to be observed).In order the space to be provided for first lower limb 66 and to guarantee the correct location of alligator clamp 52, proximal piece 50 is provided with planar section 70 (Fig. 4 (b), Fig. 5 (c) and Fig. 6) in its remote area.
When alligator clamp 52 was thrown off with syringe needle 16, its second long lower limb 68 was along the inner chamber 64 that extends across proximal piece 50 diagonally, made second lower limb 68 be resisted against in its free end zone in the proximal piece 50 on the wall part relative with first lower limb 66 (Fig. 6).This state of alligator clamp 52 is called as the relaxed state of alligator clamp 52.
Under the assembled state of catheter guide and before using, syringe needle 16 extends fully through syringe needle safety 46, thereby makes second lower limb 68 of alligator clamp 52 support the restoring force of alligator clamp 52 and be partial to first lower limb 66, shown in Fig. 5 (c).This state of alligator clamp 52 is called as the compressive state of alligator clamp 52.
As can be seen from Figure 4, in the proximal end region of proximal piece 50, on the relative both sides of proximal piece 50, be formed with two guide groove 72.The tube axial part 44 of syringe needle joint 20 is extended and held with form fit ground to described guide groove 72 vertically.
In addition, be provided with planar section 74 in the proximal end region of the proximal piece 50 of syringe needle safety 46, wherein, described planar section 74 is with respect to 90 ° of layouts of 72 one-tenth anglecs of rotation of guide groove (Fig. 4 and Fig. 5).Inner surface at syringe needle joint 20 is provided with corresponding planar section 76 (Fig. 3).
The guide groove 72 of proximal piece 50 and the tube axial part 44 of syringe needle joint 20, with the planar section 74 of the proximal piece 50 of syringe needle safety 46 and the planar section 76 of syringe needle joint 20, guaranteed that syringe needle joint 20 is with respect to the correct rotation location of syringe needle safety 46 under the assembled state of catheter guide.
Under the assembled state of catheter guide, as shown in Figure 1, conductor joint 14, syringe needle safety 46 and syringe needle joint 20 are pressed together, make the cup shaped body 53 of in the cylinder chamber 38 of conductor joint 14, holding distal component 48 and the axial component 56 (Fig. 1 c) that in the slot 40 of conductor joint 14, holds L shaped extension 54, thereby avoid the two halves 32,34 of conductor joint 14 unexpectedly to be broken into two with one's hands.Simultaneously, the proximal part that in needle hub 20, holds the proximal piece 50 of syringe needle safety 46.
For the distal component 48 of fixed needle safety 46 in conductor joint 14, be formed with locking projections 78 (Fig. 4) at the inner surface of the axial component 56 of L shaped extension 54.Locking projections 78 is used for the corresponding lock recess (not shown) interlock mutually that forms with the wall that limits described slot 40.
When for example drawing syringe needle joint 20 and when withdrawing from syringe needle 16 from conductor sheath 10 by pulling out, syringe needle safety 46 are retained in the conductor joint 14 and syringe needle 16 can freely streak syringe needle safety 46 and enters in the inner chamber 64 of proximal piece 50 of syringe needle safety 46 up to needle point 18.
In case needle point 18 has passed through the free end of second lower limb 68 of alligator clamp 52, alligator clamp 52 becomes its relaxed state, thereby stops that needle point 18 reaches outside the syringe needle safety 46 once more through the hole 58 in the distal component 48.Roughly at the same time, the part 62 of expanding by syringe needle 16 is being supported the porch in the hole 60 of proximal piece 50, prevent that syringe needle 16 from further moving axially significantly with respect to syringe needle safety 46, and can resist by the latching force that locking projections 78 applied of snap-lock depression syringe needle safety 46 are taken out from conductor joint 14.Therefore, needle point 18 is limited to syringe needle safety 46 inside and can abandons syringe needle 16 safely.
List of reference characters
10 conductor sheaths
12 proximal end regions
14 conductor joints
16 syringe needles
18 needle points
20 syringe needle joints
22 protecting tubes
24 distal portions
26 proximal parts
28 funnel-shaped structures
30 wings
32 conductors, half one
34 conductors, half one
36 grooves
38 cylinder chamber
40 slots
42 main bodys
44 tube portions
46 syringe needle safety
48 distal component
50 proximal piece
52 alligator clamps
53 main bodys
54L shape extension
56 axial components
58 holes
60 holes
62 expand part
64 inner chambers
66 first lower limbs
68 second lower limbs
70 planar sections
72 guide groove
74 planar sections
76 planar sections
78 locking projections
Claims (15)
1. catheter guide comprises:
Piped conductor sheath (10);
Conductor joint (14) has distal portions (24) and proximal part (26), and wherein, distal portions (24) is connected to conductor sheath (10) and proximal part (26) defines chamber (38);
Syringe needle (16), this syringe needle extend through conductor joint (14) and conductor sheath (10), and have relative near-end and far-end, and wherein, described far-end forms needle point (18);
Syringe needle joint (20) is attached to the near-end of syringe needle (16); And
Syringe needle safety (46), be arranged in slidably on the described syringe needle (16), wherein, described syringe needle safety (46) are retained in the chamber (38) of described conductor joint (14) when described syringe needle (16) extends through described conductor joint (14) and described conductor sheath (10), and when when described conductor sheath (10) is withdrawn from described syringe needle (16), after described needle point (18) was taken in the syringe needle safety (46), described syringe needle safety can take out from described conductor joint (14).
2. catheter guide according to claim 1,
It is characterized in that the distal component (48) of described syringe needle safety (46) fully is accommodated in the chamber (38) of described conductor joint (14) with form fit ground, particularly cardinal principle.
3. catheter guide according to claim 1 and 2,
It is characterized in that syringe needle safety (46) comprising: two that are formed on the relative both sides of described syringe needle safety (46) are roughly L shaped extension (54), preferably in the remote area of syringe needle safety.
4. catheter guide according to claim 3,
It is characterized in that,
Each L shaped extension (54) have apart from described syringe needle safety (46) main body one segment distance, generally along axially extended axial component (56).
5. catheter guide according to claim 4,
It is characterized in that, the proximal part (26) of described conductor joint (14) comprising: be formed on two slots (40) on the relative both sides in described chamber (38), and described slot (40) is used to hold the axial component that is roughly L shaped extension (54) (56) that is formed on the described syringe needle safety (46).
6. catheter guide according to claim 5,
It is characterized in that, be provided with locking device (78), be used for axial component (56) is remained on described slot (40).
7. according to the described catheter guide of arbitrary aforementioned claim,
It is characterized in that, the distal component (48) of described syringe needle safety (46) has the shape that is roughly cup-shaped, and/or the proximal piece (50) of described syringe needle safety (46) is roughly tubularly, and/or the distal component (48) of described syringe needle safety (46) and/or each in the proximal piece (50) are made by plastic material.
8. according to the described catheter guide of arbitrary aforementioned claim,
It is characterized in that, the proximal piece (50) of described syringe needle safety (46) partly is contained in the distal component (48) of syringe needle safety (46), and by for example binding agent and/or be welded to connect to be preferably and permanently be fixed on this distal component.
9. according to the described catheter guide of arbitrary aforementioned claim,
It is characterized in that described syringe needle safety (46) comprise alligator clamp (52), are preferably metal clip, this alligator clamp prevents that needle point (18) far-end from described syringe needle safety (46) after entering syringe needle safety (46) from stretching out.
10. catheter guide according to claim 9, it is characterized in that, described alligator clamp (52) is roughly V-arrangement, particularly comprise first lower limb (66) and second lower limb (68), both free end cardinal principles of first lower limb (66) and second lower limb (68) are towards the proximal extension of described syringe needle safety (46).
11. according to claim 9 or 10 described catheter guides,
It is characterized in that, first lower limb (66) of described alligator clamp (52) is fixedly placed between the distal component (48) and proximal piece (50) of described syringe needle safety (46), and/or second lower limb (68) of described alligator clamp (52) extends across the inner chamber (64) in the proximal piece (50) that is formed on described syringe needle safety (46) diagonally when throwing off with syringe needle (16).
12. according to the described catheter guide of arbitrary aforementioned claim,
It is characterized in that, be provided with guider (44,72,74,76) and guarantee the correct rotation location of described syringe needle joint (20) under the assembled state of described catheter guide.
13. catheter guide according to claim 12,
It is characterized by, described guider comprises: along axially extended two grooves (72), and stretch out and be used for being contained in two guide protrusions (44) of the groove (72) of described syringe needle safety (46) vertically from described syringe needle joint (20) in the relative both sides of the proximal piece (50) of described syringe needle safety (46).
14. the syringe needle safety (46) of the needle point (18) of a syringe needle (16) that is used to protect armarium, wherein armarium is particularly according to described catheter guide of one of aforementioned claim or venous duct device, and these syringe needle safety (46) comprising:
Distal component (48) and proximal piece (50); And
Two of relative both sides that are formed on the main body (53) of described distal component (48) are roughly L shaped extension (54).
15. syringe needle safety according to claim 14 (46) also comprise according to any described property feature among claim 4 and the claim 7-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101385234A CN102198303A (en) | 2010-03-22 | 2010-03-22 | Catheter introducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101385234A CN102198303A (en) | 2010-03-22 | 2010-03-22 | Catheter introducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102198303A true CN102198303A (en) | 2011-09-28 |
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ID=44659456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101385234A Pending CN102198303A (en) | 2010-03-22 | 2010-03-22 | Catheter introducer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992022344A1 (en) * | 1991-06-17 | 1992-12-23 | Sero-Guard Corporation | Needle guard for intravenous catheter placement |
| CN1547493A (en) * | 2001-07-31 | 2004-11-17 | �¶���÷������˾ | Protecting device of needle |
| CN1767867A (en) * | 2003-04-08 | 2006-05-03 | 特殊健康产品公司 | Safety shield for medical needles |
| CN101257941A (en) * | 2005-08-08 | 2008-09-03 | 史密斯医疗Asd公司 | Needle guard mechanisms |
| US20090299291A1 (en) * | 2008-05-28 | 2009-12-03 | Poly Medicure Ltd. | Catheter Introducer |
-
2010
- 2010-03-22 CN CN2010101385234A patent/CN102198303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992022344A1 (en) * | 1991-06-17 | 1992-12-23 | Sero-Guard Corporation | Needle guard for intravenous catheter placement |
| CN1547493A (en) * | 2001-07-31 | 2004-11-17 | �¶���÷������˾ | Protecting device of needle |
| CN1767867A (en) * | 2003-04-08 | 2006-05-03 | 特殊健康产品公司 | Safety shield for medical needles |
| CN101257941A (en) * | 2005-08-08 | 2008-09-03 | 史密斯医疗Asd公司 | Needle guard mechanisms |
| US20090299291A1 (en) * | 2008-05-28 | 2009-12-03 | Poly Medicure Ltd. | Catheter Introducer |
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Application publication date: 20110928 |