WO2013047205A1 - カテーテル組立体 - Google Patents
カテーテル組立体 Download PDFInfo
- Publication number
- WO2013047205A1 WO2013047205A1 PCT/JP2012/073328 JP2012073328W WO2013047205A1 WO 2013047205 A1 WO2013047205 A1 WO 2013047205A1 JP 2012073328 W JP2012073328 W JP 2012073328W WO 2013047205 A1 WO2013047205 A1 WO 2013047205A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outer needle
- catheter assembly
- plug
- proximal end
- needle hub
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M25/0075—Valve means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M25/0084—Catheter tip comprising a tool being one or more injection needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
- A61M2039/064—Slit-valve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
- A61M2039/0653—Perforated disc
Definitions
- the present invention relates to a catheter assembly that is placed in, for example, a patient's blood vessel and on the skin and enables infusion to the patient.
- an indwelling needle is punctured (inserted) into the patient's blood vessel, and the infusion is performed by connecting the distal end of the infusion tube and the proximal end of the indwelling needle exposed on the skin. Connect the lines. Therefore, the indwelling needle is configured as a catheter assembly so that the connection with the infusion tube can be performed quickly and the connecting portion can be easily placed on the patient's skin (for example, US Patent Application Publication No. 2010/2010/2010 No. 0204648).
- US 2010/0204648 discloses a catheter assembly comprising a tubular outer needle (catheter), an outer needle hub connected to the proximal end of the outer needle, and a sharp tip.
- An inner needle having a needle tip and an inner needle hub connected to a proximal end portion of the inner needle are provided.
- a valve mechanism including a hemostasis valve that prevents blood from flowing out and a plug (pusher) that passes through the slit of the hemostasis valve is disposed inside the outer needle hub.
- the valve mechanism of the catheter assembly blocks the blood flowing in through the outer needle with high accuracy, while easily and reliably connecting the catheter assembly and the infusion tube. . That is, it is required to simultaneously satisfy the hemostatic properties of blood and the penetrability (including ease, quickness, reliability, etc.) when the plug is inserted through the hemostatic valve.
- the valve mechanism constituted by the hemostasis valve and the plug makes it difficult to insert the plug so as not to easily open the slit of the hemostasis valve when the hemostasis is to be improved, and the penetrability is lowered. .
- the opening / closing part of the hemostasis valve is easily opened to facilitate the insertion of the plug, and the hemostasis is lowered. That is, it is difficult for the valve mechanism of the catheter assembly to satisfy both hemostasis and penetrability.
- the present invention has been made in view of the above circumstances, and can improve the hemostasis and penetrability of the valve mechanism with a simple configuration, thereby reducing the outflow of blood from the valve mechanism.
- An object of the present invention is to provide a catheter assembly that can improve the efficiency of the connection work of the infusion tube.
- the present invention provides a tubular insertion portion, a holding portion that is connected to a proximal end side of the insertion portion and communicates with the insertion portion, and has a flow passage on the flow passage. And a valve body having an occlusion membrane for blocking fluid flow, an opening / closing portion capable of partially opening and closing the occlusion membrane, and a proximal end side than the occlusion membrane, and moving in a distal direction
- a catheter assembly comprising an insertion member for inserting the opening / closing portion, wherein the opening / closing portion is formed through the obstruction membrane in a single slit shape, and a distal end portion of the distal end portion through which the insertion member is inserted.
- the opening / closing part of the hemostasis valve is formed in a slit-like manner through the obstruction membrane, and the line length of the distal end opening part through which the insertion member is inserted is L f , and the proximal end opening part in which the insertion member is inserted
- the line length is L r
- the opening / closing part is formed by the relationship L f ⁇ L r. It becomes possible to block
- the catheter assembly improves both the hemostasis of the blood and the penetration of the plug, can greatly reduce the blood outflow of the patient, and more efficiently perform the connecting operation of the infusion tube. be able to.
- the opening / closing part is formed in an isosceles trapezoidal shape with the distal end part and the proximal end part being an upper base and a lower base in a side sectional view of the valve body.
- the insertion member inserted from the proximal end port portion of the opening / closing portion is trapezoidal by forming the shape of the opening / closing portion into an isosceles trapezoidal shape.
- the both sides can be smoothly directed toward the end opening of the opening / closing portion while being narrowed with an even adhesion force, and the penetrability of the insertion member can be further improved.
- a sealing member that allows gas to pass but does not allow liquid to pass through closes the flow path on the proximal end side of the valve body.
- the seal member that allows the gas to pass while preventing the liquid from passing, the air existing in the flow path can be exhausted to the proximal end side, and further flows into the flow path.
- the fluid blood
- the fluid blood
- an inner needle inserted through the insertion portion and an inner needle hub fixed to the proximal end portion of the inner needle and connectable to the proximal end side of the holding portion may be provided.
- the insertion portion and the inner needle can be easily punctured by grasping and operating the inner needle hub.
- the present invention it is possible to improve the hemostasis and penetrability of the valve mechanism constituted by the valve body and the insertion member with a simple configuration, thereby reducing the outflow of blood from the valve mechanism, It is possible to improve the efficiency of connecting the infusion tube.
- FIG. 2 is an exploded perspective view of the catheter assembly of FIG. 1.
- FIG. 2 is a side cross-sectional view of the catheter assembly of FIG. 1.
- FIG. 4 is a partial side cross-sectional view showing a state in which an inner needle and an inner needle hub are pulled out from the catheter assembly of FIG. 3.
- FIG. 5 is a sectional view taken along line VV in FIG. 4.
- FIG. 5 is a partial side cross-sectional view showing a state where the plug is advanced partway from the catheter assembly of FIG. 4.
- FIG. 7 is a partial side cross-sectional view showing a state where a plug is advanced from the catheter assembly of FIG. 6 and a hemostasis valve is inserted.
- 5 is a table summarizing penetrability and hemostasis for the hemostasis valve slit according to the present embodiment and the hemostasis valve slits of Comparative Examples 1 to 4.
- FIG. 1 is an overall perspective view showing a catheter assembly 10 according to the present embodiment
- FIG. 2 is an exploded perspective view of the catheter assembly 10 of FIG. 1
- FIG. 3 is a catheter assembly of FIG. FIG.
- the left side in the drawing is referred to as the distal end (front)
- the right side in the drawing is referred to as the proximal end (rear).
- the catheter assembly 10 includes a tubular outer needle 12 (insertion portion), an outer needle hub 14 (holding portion) connected to the proximal end portion of the outer needle 12, and a sharp needle at the distal end.
- An inner needle 16 having a tip 16a and an inner needle hub 18 connected to a proximal end portion of the inner needle 16 are provided.
- the catheter assembly 10 punctures a patient's vein (blood vessel) in a state where the outer needle 12 and the inner needle 16 are overlapped (the outer needle 12 is covered with the outer needle 12), and then the inner needle 16 is Pull out with needle hub 18.
- the proximal end side of the outer needle 12 and the outer needle hub 14 are exposed and placed on the patient's skin with the distal end side of the outer needle 12 inserted into the vein. Then, by connecting an infusion tube (not shown) to the proximal end side of the outer needle hub 14, an infusion solution (medicine solution) can be supplied to the patient from the infusion tube.
- an infusion solution medicine solution
- a protector 20 Prior to use of the catheter assembly 10, a protector 20 (see FIG. 2) is attached to prevent inadvertent puncture of the outer needle 12 and the inner needle 16.
- the outer needle 12 of the catheter assembly 10 is configured as a flexible tubular member (catheter).
- a resin material in particular, a soft resin material is suitable.
- a fluorine resin such as polytetrafluoroetherene (PTFE), an ethylene / tetrafluoroetherene copolymer (ETFE), a bellfluoroalkoxy fluorine resin (PFA), an olefin resin such as polyethylene or polypropylene, or the like
- PTFE polytetrafluoroetherene
- ETFE ethylene / tetrafluoroetherene copolymer
- PFA bellfluoroalkoxy fluorine resin
- an olefin resin such as polyethylene or polypropylene, or the like
- the outer needle 12 is made of a resin having transparency so that all or a part of the outer needle 12 can be visually recognized.
- a phenomenon that blood flows into the outer needle hub 14 through the lumen 22 (see FIG. 3) of the outer needle 12 also referred to as flashback. It can be confirmed visually.
- an imaging function can be provided by blending the constituent material of the outer needle 12 with an X-ray contrast agent such as barium sulfate, barium carbonate, bismuth carbonate, or tungstic acid.
- an X-ray contrast agent such as barium sulfate, barium carbonate, bismuth carbonate, or tungstic acid.
- the proximal end portion of the outer needle 12 is attached to the distal end portion of the outer needle hub 14 by a method such as caulking, fusing (thermal fusing, high frequency fusing, etc.), bonding with an adhesive, or the like. It is fixed liquid-tight.
- the outer needle 12 is fixedly held on the outer needle hub 14 by using a caulking pin 24 (see also FIGS. 3 and 4).
- the outer needle hub 14 is formed into a cylindrical shape that is tapered in the distal direction by a resin material made of a material harder than the outer needle 12.
- the outer needle hub 14 fixes and holds the proximal end portion of the outer needle 12 to facilitate operation (puncture) of the outer needle 12 and facilitate communication between the outer needle 12 and the infusion tube.
- the outer needle hub 14 includes a tab 14a protruding outward on the outer peripheral surface of the intermediate portion in the axial direction in order to facilitate the advancement procedure (puncture) of the outer needle 12 into the vein.
- the lumen of the outer needle hub 14 functions as a flow path 26 through which the infusion solution can flow.
- the flow path 26 opens at the proximal end surface of the outer needle hub 14 and is fixed to the distal end portion of the outer needle hub 14. Connected (communication) to the inner cavity 22 of the outer needle 12 to be performed.
- the flow path 26 of the outer needle hub 14 includes an outer needle connection portion 28, a distal end guide portion 30, a valve element arrangement portion 32, and a connector connection portion 34 from the distal end side toward the proximal end side (see FIG. 3).
- the outer needle connecting portion 28 has a wall portion 36 (inner diameter) that substantially matches the outer diameter of the outer needle 12 at the distal end portion of the outer needle hub 14. The proximal end portion of the outer needle 12 is inserted into the outer needle connecting portion 28.
- the distal end guide portion 30 has a function of guiding the infusion agent supplied from the proximal end side to the outer needle 12 by connecting the distal end side to the outer needle connecting portion 28.
- the wall portion 38 constituting the distal end guide portion 30 has a tapered surface 38a whose inner diameter near the distal end gradually increases in the proximal direction, and is formed substantially in parallel from the intermediate portion connected to the tapered surface 38a to the proximal end.
- the valve element arranging portion 32 is configured by a wall portion 40 having a distal end side continuous with the distal end guide portion 30 and having a diameter larger than that of the wall portion 38 of the distal end guide portion 30. Accordingly, a stepped portion is formed between the tip guide portion 30 and the valve element arrangement portion 32.
- a hemostatic valve 46 and a seal member 48, which will be described later, are disposed in the valve body arranging portion 32.
- the connector connection part 34 is connected to the valve element arrangement part 32 at the distal end side and extends in the proximal direction.
- a connector 44 (see FIGS. 6 and 7) of an infusion tube can be fitted into the connector connecting portion 34.
- the wall portion 42 constituting the connector connecting portion 34 is formed in parallel with the axial direction, but the inner diameter of the wall portion 42 of the connector connecting portion 34 gradually increases toward the proximal direction. It may have a tapered shape.
- the distal end portion of the connector 44 is formed into a corresponding tapered shape (taper angle), so that the distal end portion of the connector 44 can be easily inserted and connected to the proximal end side of the connector connecting portion 34. .
- FIG. 4 is a partial side sectional view showing a state in which the inner needle 16 and the inner needle hub 18 are pulled out from the catheter assembly 10 in FIG. 3, and
- FIG. 5 is a sectional view taken along the line VV in FIG.
- the caulking pin 24, the hemostasis valve 46 (valve element), the seal member 48, and the plug 50 (insertion member) are accommodated in this order in the flow path 26 of the outer needle hub 14.
- the hemostasis valve 46 and the plug 50 function as a valve mechanism 45 that enables blocking of blood and supply of an infusion in the catheter assembly 10.
- the caulking pin 24 is a member for connecting and fixing the outer needle 12 and the outer needle hub 14, and has a tubular circular pipe portion 52 on the distal end side, and from the circular pipe portion 52 toward the proximal end side. And a tapered portion 54 whose diameter gradually increases.
- the circular pipe portion 52 is accommodated in the outer needle connecting portion 28 of the outer needle hub 14 (flow path 26), and the tapered portion 54 is accommodated on the distal end side of the distal end guide portion 30 of the outer needle hub 14. .
- the circular pipe part 52 is formed so that the outer diameter substantially coincides with the lumen 22 of the outer needle 12 and is extended in a predetermined length in the axial direction.
- the catheter assembly 10 is caulked by inserting the circular tube portion 52 into the outer needle connecting portion 28 in a state where the outer needle 12 is inserted into the outer needle connecting portion 28 of the outer needle hub 14.
- the outer needle 12 is pinched by the wall portion 36 of the outer needle connecting portion 28 and the circular tube portion 52 of the caulking pin 24, and the outer needle 12 is fixedly held on the outer needle hub 14.
- the caulking pin 24 is preferably made of metal or hard resin in order to caulk the outer needle 12 and the outer needle hub 14 at the circular pipe portion 52.
- the tapered portion 54 of the caulking pin 24 is formed so that the outer diameter gradually increases from the distal end side toward the proximal end side corresponding to the tapered surface 38a of the distal end guide portion 30 of the outer needle hub 14. Accordingly, the caulking pin 24 is accommodated in the flow path 26 in a state where the tapered portion 54 and the tapered surface 38a are in close contact with each other. When the infusion agent is introduced from the proximal end side, the tapered portion 54 can smoothly flow out toward the outer needle 12.
- the caulking pin 24 need not be used.
- the distal end guide portion 30 of the outer needle hub 14 is formed on the tapered surface 38a, the infusion agent smoothly flows out toward the outer needle 12 when the infusion agent flows in from the proximal end side. Can be made.
- the hemostasis valve 46 is a member disposed so as to close the flow path 26 of the outer needle hub 14 and has a function of blocking outflow of fluid (blood). Specifically, the hemostasis valve 46 is formed in a bottomed cylindrical shape, and the side peripheral wall 56 is arranged in close contact with the wall portion 40 of the valve element arrangement portion 32 of the outer needle hub 14. Further, the hemostasis valve 46 is configured as a blocking film 58 whose bottom portion blocks the flow of the infusion agent, and a slit 60 (opening / closing section) penetrating the blocking film 58 is formed at the center of the blocking film 58.
- the occlusion film 58 has a predetermined film thickness and functions as a valve that receives blood flowing into the flow path 26. That is, the blocking film 58 is configured with a predetermined elastic force so that the slit 60 can be easily opened and blood does not flow into the proximal end side of the hemostatic valve 46.
- the slit 60 of the present embodiment is formed so as to exist in one planar shape by penetrating the blocking film 58 as a single line in a front view.
- the slit 60 is formed so that the inner needle 16 and the plug 50 can be inserted and removed, and is self-closed when the inner needle 16 and the plug 50 are not inserted.
- the slit 60 has an isosceles trapezoidal shape with the mouth portions (the distal end mouth portion 62 and the proximal end mouth portion 64) on both sides of the blocking film 58 as the bottom portions (upper bottom and lower bottom) in a side sectional view (see FIG. 4). It is formed.
- the slit 60 has a relationship of L f ⁇ L r when the line length L f of the distal end port portion 62 and the line length L r of the proximal end port portion 64 are set. That is, the slit 60 has a shape in which the side of the trapezoidal shape gently spreads from the distal end port portion 62 toward the proximal end port portion 64. A specific configuration and operational effects of the slit 60 will be described in detail later.
- the hemostasis valve 46 is preferably made of an elastic material having a hardness that prevents the slit 60 from being easily opened by blood flow (blood pressure). By configuring the hemostasis valve 46 with an elastic material, the slit 60 can be easily inserted through the plug 50.
- Examples of the elastic material constituting the hemostasis valve 46 include various rubber materials such as natural rubber, isoprene rubber, butyl rubber, butadiene rubber, styrene-butadiene rubber, urethane rubber, nitrile rubber, acrylic rubber, fluorine rubber, and silicone rubber ( Especially those vulcanized), various elastic materials such as urethane-based, polyester-based, polyamide-based, olefin-based, styrene-based various thermoplastic elastomers or mixtures thereof, among these elastic materials, In particular, it is preferable to use isoprene rubber. When isoprene rubber is used as the constituent material of the valve body, there is an advantage that the compression set is small and the usable period of the product becomes long.
- the distal end guide portion 30 of the outer needle hub 14 and the proximal end side of the valve body arrangement portion 32 are disposed on the wall portion 40 of the valve body arrangement portion 32 where the hemostasis valve 46 is arranged.
- a plurality of inner peripheral groove portions 66 are provided for communication.
- the inner circumferential groove 66 is formed such that the tip thereof cuts out the stepped portion between the tip guide portion 30 and the valve body placement portion 32, and extends along the wall portion 40 of the valve body placement portion 32 from this tip portion. It extends in the axial direction.
- the inner circumferential groove 66 prevents gas (air) from remaining in the distal end guide portion 30 of the outer needle hub 14 after the outer needle 12 and the inner needle 16 are punctured into the patient's vein and the inner needle 16 is removed. It is provided for the purpose. That is, when the inner needle 16 is removed, the air located on the distal end side from the hemostasis valve 46 is pushed by the blood flowing into the flow path 26 and passes through the inner peripheral groove portion 66 and is guided to the proximal end side.
- the shape of the inner peripheral groove portion 66 may be formed not only in a straight line shape on the wall portion 40 of the outer needle hub 14 from the distal end side to the proximal end side, but may be formed so as to draw a waveform or a spiral, for example.
- the depth of the inner peripheral groove 66 depends on the shapes of the outer needle hub 14 and the hemostasis valve 46, but is preferably set to about 5 to 20 ⁇ m, for example.
- the inner peripheral groove 66 may be formed not only on the wall 40 (inner peripheral surface) of the outer needle hub 14 but also on the side peripheral wall 56 of the hemostasis valve 46.
- the seal member 48 is disposed on the proximal end side of the hemostasis valve 46 so as to close the inner peripheral groove 66.
- the seal member 48 is formed in a cylindrical shape, has a sealing property that allows gas to pass therethrough and does not allow liquid to pass through, and is disposed so as to be in close contact with the hemostasis valve 46 and to block the inner peripheral groove 66.
- the seal member 48 is formed with a cylindrical convex portion 48 a fitted at the proximal end opening of the hemostasis valve 46 in order to improve the adhesion with the hemostasis valve 46.
- the seal member 48 can be fixed to the wall portion 40 of the outer needle hub 14 (valve element arrangement portion 32) by a method such as fusion or adhesion.
- the hemostasis valve 46 and the seal member 48 are restrained from being displaced on the distal end side and the proximal end side by the valve element arranging portion 32 of the outer needle hub 14. Therefore, even when the inner needle 16 and the plug 50 are inserted / removed, the arrangement position of the hemostasis valve 46 is maintained, so that the opening / closing operation of the slit 60 can be performed smoothly.
- the seal member 48 is made of a material that allows gas to pass but prevents liquid from passing.
- a sealing member 48 what was formed with porous bodies, such as a sintered compact made from polyethylene, for example can be used conveniently.
- the porous sealing member 48 is preferable because it is easy to manufacture and can be manufactured with high accuracy.
- the plug 50 constituting the valve mechanism 45 together with the hemostasis valve 46 is formed in a substantially cylindrical shape by a resin material having rigidity.
- the plug 50 is disposed on the base end side of the blocking film 58 on the flow path 26 of the outer needle hub 14 and can be advanced in the axial direction of the outer needle hub 14.
- the lumen 68 of the plug 50 functions as a flow path for circulating the infusion agent.
- the plug 50 is advanced and moved in the distal direction of the outer needle hub 14 by a predetermined operation (the pushing operation of the connector 44 when the infusion tube is connected), thereby inserting the slit 60 of the hemostasis valve 46 and the outer needle hub 14.
- the distal end guide portion 30 (flow path 26) and the lumen 68 are communicated.
- the plug 50 is formed with a distal end enlarged diameter portion 70, a body portion 72, and a proximal end enlarged diameter portion 74 in order from the distal end side.
- the distal diameter expanding portion 70 is a portion that is disposed in the distal end guide portion 30 of the outer needle hub 14 through the hemostasis valve 46 (slit 60) as the plug 50 moves forward.
- two flange portions (a first flange portion 70a and a second flange portion 70b) that protrude outward in the radial direction and extend in the circumferential direction are arranged in the axial direction. .
- the second collar portion 70b functions as an engaging portion that engages with the slit 60 of the hemostasis valve 46 in a state where the plug 50 penetrates (inserts) the slit 60. That is, the second flange 70b of the plug 50 is engaged with the slit 60 of the hemostasis valve 46, whereby the plug 50 is prevented from inadvertently moving in the proximal direction.
- the communication state with the inner cavity 68 of the plug 50 is reliably maintained.
- the first and second collar portions 70a and 70b are formed in a tapered shape that gradually increases in diameter from the distal end toward the proximal end.
- the body portion 72 of the plug 50 is connected to the distal diameter expanding portion 70 and extends a predetermined length in the proximal direction, and in a state where the plug 50 is accommodated in the flow path 26 of the outer needle hub 14, the valve body arranging portion. 32 to the connector connecting portion 34.
- the base end enlarged diameter portion 74 is arranged on the connector connecting portion 34 of the outer needle hub 14 by being connected to the base end side of the trunk portion 72.
- a flange portion 74 a that protrudes radially outward and extends in the circumferential direction is formed on the outer peripheral surface near the base end of the base end enlarged diameter portion 74, and this flange portion 74 a is a connector of the outer needle hub 14.
- the connecting portion 34 is formed to have an outer diameter that substantially matches the wall portion 42 (inner diameter). Therefore, when the plug 50 moves forward, the flange portion 74a slides on the wall portion 42 of the connector connecting portion 34, and the movement is performed stably.
- the slit 60 is closed by the self-occlusion and the flow path 26 is blocked. Then, when the plug 50 moves forward, the distal diameter expanding portion 70 passes through the slit 60 and moves to the distal side with respect to the hemostasis valve 46, and the lumen 68 of the plug 50 and the flow path 26 are connected. That is, the catheter assembly 10 advances the plug 50 along the axial direction of the flow path 26 and inserts the distal end enlarged diameter portion 70 into the slit 60 of the hemostasis valve 46, so that the inside of the flow path 26 and the plug 50. Communication with the cavity 68 is performed (see FIG. 7).
- the inner needle 16 of the catheter assembly 10 has a proximal end fixed to the inner needle hub 18, and is a length that can penetrate the outer needle 12 and the outer needle hub 14 from the proximal end toward the distal end. Formed.
- the inner needle 16 is inserted through the outer needle 12, the outer needle hub 14, the hemostasis valve 46 and the plug 50.
- the sharp needle tip 16a of the inner needle 16 is projected from the distal end opening of the outer needle 12, and the surface of the living body can be easily punctured by the needle tip 16a.
- a metal material such as stainless steel, aluminum or an aluminum alloy, titanium or a titanium alloy can be cited.
- a groove may be provided on the outer peripheral portion of the inner needle 16 along the axial direction of the inner needle 16. This groove can function as an introduction path for introducing blood into the lumen 22 of the outer needle 12 when the outer needle 12 and the inner needle 16 are punctured into the blood vessel. The blood introduced from the groove flows into the gap between the outer needle 12 and the inner needle 16. Thereby, the flashback of blood can be reliably confirmed from an early stage.
- the inner needle hub 18 has a case 76 that can operate the inner needle 16 on the proximal end side, and a fixing block 78 that fixes and holds the inner needle 16 is provided inside the case 76.
- the case 76 is formed into an elongated shape that can be easily held with one hand.
- the inner needle hub 18 can be connected to the proximal end side of the outer needle hub 14. Thereby, the puncture of the outer needle 12 and the inner needle 16 can be easily performed by operating the inner needle hub 18.
- the catheter assembly 10 As described above, in the catheter assembly 10, after the outer needle 12 and the inner needle 16 are punctured into a patient's vein, an operation of pulling out (withdrawing) the inner needle 16 inserted into the outer needle 12 is performed. .
- the user of the catheter assembly 10 can easily remove the inner needle 16 from the outer needle 12 by gripping and pulling the inner needle hub 18 (case 76) when the inner needle 16 is pulled out.
- Examples of the constituent material of the outer needle hub 14 and the inner needle hub 18 include various resin materials such as polyolefin, such as polyethylene, polypropylene, and ethylene-vinyl acetate copolymer, polyurethane, polyamide, polyester, polycarbonate, polybutadiene, and polyvinyl chloride. Can be mentioned. Further, the plug 50 is also made of the same material, so that the manufacturing cost can be reduced.
- polyolefin such as polyethylene, polypropylene, and ethylene-vinyl acetate copolymer
- polyurethane polyamide
- polyester polycarbonate
- polybutadiene polyvinyl chloride
- FIG. 6 is a partial side cross-sectional view showing a state in which the plug 50 is advanced halfway from the catheter assembly 10 in FIG. 4, and FIG. 7 is a hemostasis valve in which the plug 50 is advanced from the catheter assembly 10 in FIG.
- FIG. 6 is a partial side cross-sectional view showing a state where 46 is inserted.
- the tubular connector 44 is inserted into the connector connecting portion 34 of the outer needle hub 14 after the inner needle 16 is removed.
- the connector 44 is formed to have an outer diameter substantially coinciding with the wall portion 42 (inner diameter) of the connector connecting portion 34.
- the connector 44 is fitted into the outer needle hub 14 by being inserted into the connector connecting portion 34, and the connected state is maintained. Is done. In a state where the connector 44 is connected to the outer needle hub 14, the distal end surface of the connector 44 abuts on the base end enlarged diameter portion 74 of the plug 50, and the inner cavity 68 of the plug 50 and the inner cavity 44 a of the connector 44 communicate with each other.
- a distal end portion of an infusion tube (not shown) is connected in advance to the proximal end portion of the connector 44, and an infusion bag (not shown) filled with an infusion agent is connected to the proximal end portion of the infusion tube. . Therefore, the catheter assembly 10 is supplied with an infusion agent via the infusion bag, the infusion tube, and the connector 44, and further passes through the lumen 68 of the plug 50 to the flow path 26 of the outer needle hub 14 and the lumen 22 of the outer needle 12. The infusion can be guided.
- the outer needle hub 14 and the connector 44 may be provided with a lock mechanism (not shown) for maintaining the connection state.
- tip part of the connector 44 may be formed in the taper shape which the outer diameter increases gradually toward a base end direction.
- the plug 50 may be set so that the inner diameter of the base end enlarged diameter portion 74 is the same as or larger than the inner diameter of the connector 44. In this way, when the connector 44 is connected to the proximal end portion of the outer needle hub 14, the infusion agent can be easily and reliably made to flow from the connector 44 to the plug 50.
- the catheter assembly 10 according to the present embodiment is basically configured as described above. Next, operations and effects when the catheter assembly 10 is used will be described.
- the catheter assembly 10 is provided with the members shown in FIG. 2 assembled before use. That is, as shown in FIG. 3, the proximal end portion of the outer needle 12 is fixed to the outer needle hub 14 and protrudes in the distal direction, and the caulking pin 24 is disposed inside the outer needle hub 14 (the flow path 26). The hemostasis valve 46, the seal member 48, and the plug 50 are disposed at predetermined positions. Further, the proximal end portion of the inner needle 16 is fixed to the inner needle hub 18, is inserted through the outer needle hub 14, is further inserted through the lumen 22 of the outer needle 12, and the needle tip 16 a is the outer needle 12. It is exposed from the tip.
- the inner needle 16 is connected to the inner needle hub 18 through the slit 60 of the hemostasis valve 46 and the inner cavity 68 of the plug 50 in the flow path 26 of the outer needle hub 14.
- the catheter assembly 10 is mounted with a protector 20 (see FIG. 2) so as to cover the outer needle 12 and the inner needle 16 from the distal end of the outer needle hub 14.
- the protector 20 is first removed, and the catheter assembly 10 is positioned at a desired position (puncture position) of the patient.
- the inner needle hub 18 is grasped, and the inner needle 16 and the outer needle 12 are punctured into the patient's vein.
- the outer needle 12 or the outer needle hub 14 is formed of a transparent material, the inflow of blood can be visually recognized.
- the blood that has flowed into the outer needle hub 14 flows into the distal end guide portion 30 of the flow path 26 and is blocked by the hemostasis valve 46 from flowing out further to the proximal end side.
- the air existing in the distal end guide portion 30 passes through the inner peripheral groove portion 66 and is exhausted to the proximal end side of the outer needle hub 14 through the seal member 48 that can transmit gas.
- the catheter assembly 10 is further advanced toward the distal end by a minute distance. Specifically, a finger is applied to the tab 14a of the outer needle hub 14, and the outer needle 12 and the inner needle 16 are advanced by a predetermined amount relative to the vein.
- the outer needle 12 or the outer needle hub 14 is fixed with one hand, the inner needle hub 18 is grasped with the other hand and pulled toward the proximal end, and the inner needle 16 is pulled to the outer needle. Remove from 12. Thereby, the catheter assembly 10 is in a state in which the outer needle 12 and the outer needle hub 14 are indwelled in the patient. In addition, since the extracted inner needle 16 becomes unnecessary, it is used for disposal.
- the catheter assembly 10 is in a state in which the slit 60 of the hemostasis valve 46 is closed when the inner needle 16 is removed, and flows into the flow path 26 (tip guide 30). It is possible to prevent blood from flowing out (leakage) from the proximal end side of the outer needle hub 14 to the outside.
- the line length L f of the distal end portion 62 of the slit 60 (opening / closing portion) formed in a single line is the proximal end portion 64. It is shorter than the line length Lr . Therefore, even if a pressing force (blood pressure) is applied from the blood flowing into the flow path 26 of the outer needle hub 14, the blood is prevented from flowing out at the distal end portion 62 where the line length Lf is shortened. The That is, the hemostasis valve 46 can reliably hold (block) the blood by the occlusion film 58.
- the line length L f of the distal end portion 62 of the slit 60 may be set within a range of 0.3 to 0.6 mm, for example, depending on the size of the hemostatic valve 46 and the film thickness of the blocking film 58. With this setting the line length L f in the range of 0.3 ⁇ 0.6 mm, it is possible to sufficiently obtain hemostasis performance of blood, it is possible to reliably suppress the outflow of blood.
- the line length L r of the base end port portion 64 of the slit 60 is preferably set in the range of 0.4 to 0.8 mm corresponding to the line length L f of the distal end port portion 62. That is, if the line length L r of the proximal end port portion 64 is about 30% larger than the line length L f of the distal end port portion 62, it is preferable in terms of the plug 50 insertion property.
- the outer needle hub 14 is fixed on the patient's skin with an adhesive tape or the like, and an infusion tube connector 44 is inserted from the proximal end side of the outer needle hub 14 as shown in FIG. .
- the plug 50 housed in the flow path 26 of the outer needle hub 14 is pressed by the connector 44 and moves in the distal direction, and the distal diameter enlarged portion 70 of the plug 50 is connected to the hemostasis valve 46.
- the occlusion film 58 is pushed in.
- hemostasis valve 46 since the line length L r of the proximal mouth 64 of the slit 60 is longer, it is possible to easily insert the plug 50 into the slit 60. That is, when the distal end surface of the plug 50 (the distal end enlarged diameter portion 70) is brought into contact with and pressed against the proximal end surface of the occlusion membrane 58 of the hemostasis valve 46, the occlusion membrane 58 is elastically deformed and its central portion is displaced in the distal end direction. The base end port portion 64 is expanded by the deformation of the blocking film 58, and the distal end enlarged diameter portion 70 can easily enter the slit 60.
- the plug 50 can be inserted into the slit 60 when the amount of pushing of the plug 50 (the amount of deformation of the blocking film 58) is small, and the pushing force (insertion force) applied to the connection of the infusion tube can be reduced. it can.
- the connection operation of the infusion tube can be performed in a short time, and the plug 50 can be more reliably penetrated through the hemostasis valve 46. Further, the burden on the hemostatic valve 46 that is elastically deformed is also reduced.
- valve mechanism 45 improves the penetrability in the insertion of the plug 50 and prevents the blood from flowing out to the proximal end side of the occlusion film 58 by smoothly inserting the plug 50 into the hemostasis valve 46. Can do. That is, the catheter assembly 10 also improves hemostasis when the plug 50 is inserted.
- the supply of the infusion agent is started from the infusion bag.
- the infusate that has passed through the infusion tube and the connector 44 in this order flows out from the opening of the diameter-expanded portion 70 of the plug 50 and fills the entire flow path 26. Further, the infusion agent is guided from the flow path 26 of the outer needle hub 14 into the patient's vein via the lumen 22 of the outer needle 12.
- the slit 60 of the hemostasis valve 46 is formed as a single line through the obstruction film 58 and the distal end portion into which the plug 50 is inserted.
- the plug 50 is formed in the slit 60 by forming L f ⁇ L r.
- the line length L f of the distal end port portion 62 is short, so that the slit 60 can be reliably closed, and blood can be prevented from flowing out to the proximal end side of the outer needle hub 14. it can.
- the plug 50 when the plug 50 is inserted through the slit 60, the plug 50 can be easily entered into the proximal end port portion 64 because the line length L r of the proximal end port portion 64 is long. That is, the catheter assembly 10 improves both the blood hemostasis and the penetrability of the plug 50, can greatly reduce the blood outflow of the patient, and can efficiently connect the infusion tube. Can be done.
- the slit 60 is formed in an isosceles trapezoidal shape having the base end port portion 64 and the distal end port portion 62 as upper and lower bases in a side sectional view of the hemostasis valve 46. Is done.
- the plug 50 inserted from the proximal end port portion 64 of the slit 60 can be smoothly pressed while the trapezoidal both sides of the plug 50 are narrowly pressed with an equal adhesion force. Therefore, the penetration of the plug 50 can be further improved.
- catheter assembly 10 is not limited to the above-described embodiment, and various configurations can be adopted without departing from the gist of the present invention.
- the hemostasis valve 46 having the slit 60 according to the present invention and the hemostasis valve having a slit having another shape were compared with respect to penetrability and hemostasis.
- the catheter assembly 10 is used which is composed of the same members except for the hemostasis valve.
- FIG. 8 is a table summarizing penetrability and hemostasis of the slit 60 of the hemostasis valve 46 according to the present embodiment (example) and the slits of the hemostasis valves of Comparative Examples 1 to 4.
- the line length L f of the distal end port portion 62 was set to 0.3 mm
- the line length L r of the proximal end port portion 64 was set to 0.4 mm.
- the line length L f at the distal end and the line length L r at the proximal end were set to the same 0.3 mm.
- the line length L f of the distal end portion and the line length L r of the proximal end portion 64 were set to the same 0.4 mm.
- the hemostatic valve of Comparative Example 3 sets the line length L f of the tip opening to 0.4 mm, was set line length L r of the proximal mouth portion to 0.3 mm. Furthermore, in Comparative Example 4, a front view of the occlusion membrane is shown, and the hemostasis valve of this Comparative Example 4 has a shape in which slits are uniformly extended in three directions from the central portion of the occlusion membrane (Y-shape). Formed.
- the pressure received by the slit of the hemostasis valve from the fluid was measured, and the pressure when the fluid was actually flowed out was compared.
- the deformation of the hemostasis valve at the time of plug insertion was measured, and the displacement amount when the plug was actually inserted was compared.
- the hemostasis valve 46 of the example was able to receive about 80 kPa as the pressure from the fluid, and the displacement of about 2.5 mm was measured as the stroke of the plug 50.
- Comparative Example 1 although the hemostatic property of the blood was about the same as that of the example, the plug stroke was displaced about 3.5 mm, resulting in a decrease in the penetrability of the plug.
- Comparative Example 2 although the penetrability of the plug was about the same as that of the example, only about 60 kPa was received as the pressure from the fluid, resulting in a decrease in hemostatic properties.
- Comparative Example 3 as in Comparative Example 1, the hemostatic property was similar to that of the Example, but the plug penetration was reduced.
- Comparative Example 4 although the displacement of the plug was about 1.5 mm and excellent penetrability, only about 8 kPa was received as the pressure from the fluid, resulting in a significant reduction in hemostatic properties.
- Comparative Examples 1 to 4 showed that either penetrability or hemostasis was reduced, whereas in the examples, good results were obtained for both penetrability and hemostasis. It was.
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Abstract
Description
Claims (4)
- 管状の挿入部(12)と、
前記挿入部(12)の基端側に接続され、該挿入部(12)内に連通する流路(26)を内部に有する保持部(14)と、
前記流路(26)上に配設され、流体の流通を遮断する閉塞膜(58)、及び該閉塞膜(58)を部分的に開閉可能な開閉部(60)を有する弁体(46)と、
前記閉塞膜(58)よりも基端側に配置され、先端方向への移動によって前記開閉部(60)を挿通する挿通部材(50)と、を備えるカテーテル組立体(10)であって、
前記開閉部(60)は、前記閉塞膜(58)に1本のスリット状に貫通形成され、且つ前記挿通部材(50)が挿出される先端口部(62)の線長をLf、該挿通部材(50)が挿入される基端口部(64)の線長をLrとした場合に、Lf<Lrの関係で形成される
ことを特徴とするカテーテル組立体(10)。 - 請求項1記載のカテーテル組立体(10)において、
前記開閉部(60)は、前記弁体(46)の側面断面視で、前記先端口部(62)及び前記基端口部(64)を上底及び下底とする等脚台形形状に形成される
ことを特徴とするカテーテル組立体(10)。 - 請求項1又は2記載のカテーテル組立体(10)において、
前記弁体(46)の基端側には、気体を通過させる一方で、液体を通過させ難いシール部材(48)が前記流路(26)を塞ぐように配置される
ことを特徴とするカテーテル組立体(10)。 - 請求項1~3のいずれか一項に記載のカテーテル組立体(10)において、
前記挿入部(12)内に挿通される内針(16)と、
前記内針(16)の基端部に固着され、前記保持部(14)の基端側と接続可能な内針ハブ(18)と、を有する
ことを特徴とするカテーテル組立体(10)。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12835725.8A EP2762193B1 (en) | 2011-09-28 | 2012-09-12 | Catheter assembly |
JP2013536153A JP6067567B2 (ja) | 2011-09-28 | 2012-09-12 | カテーテル組立体 |
CN201280043941.2A CN103842021B (zh) | 2011-09-28 | 2012-09-12 | 导管组装体 |
AU2012317947A AU2012317947B2 (en) | 2011-09-28 | 2012-09-12 | Catheter assembly |
US14/227,941 US9095679B2 (en) | 2011-09-28 | 2014-03-27 | Catheter assembly |
Applications Claiming Priority (2)
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JP2011-212694 | 2011-09-28 | ||
JP2011212694 | 2011-09-28 |
Related Child Applications (1)
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US14/227,941 Continuation US9095679B2 (en) | 2011-09-28 | 2014-03-27 | Catheter assembly |
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WO2013047205A1 true WO2013047205A1 (ja) | 2013-04-04 |
Family
ID=47995239
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PCT/JP2012/073328 WO2013047205A1 (ja) | 2011-09-28 | 2012-09-12 | カテーテル組立体 |
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US (1) | US9095679B2 (ja) |
EP (1) | EP2762193B1 (ja) |
JP (1) | JP6067567B2 (ja) |
CN (1) | CN103842021B (ja) |
AU (1) | AU2012317947B2 (ja) |
WO (1) | WO2013047205A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015141366A1 (ja) * | 2014-03-20 | 2015-09-24 | テルモ株式会社 | カテーテル組立体 |
WO2015141365A1 (ja) * | 2014-03-20 | 2015-09-24 | テルモ株式会社 | カテーテル組立体 |
US10061899B2 (en) | 2008-07-09 | 2018-08-28 | Baxter International Inc. | Home therapy machine |
CN109745615A (zh) * | 2013-07-30 | 2019-05-14 | 贝克顿·迪金森公司 | 采用具有挠性固位臂的致动器的血液控制导管阀 |
WO2021210484A1 (ja) * | 2020-04-17 | 2021-10-21 | ニプロ株式会社 | 針組立体 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8323249B2 (en) | 2009-08-14 | 2012-12-04 | The Regents Of The University Of Michigan | Integrated vascular delivery system |
WO2011146769A2 (en) | 2010-05-19 | 2011-11-24 | Tangent Medical Technologies Llc | Integrated vascular delivery system |
US8814833B2 (en) | 2010-05-19 | 2014-08-26 | Tangent Medical Technologies Llc | Safety needle system operable with a medical device |
CA2891255C (en) | 2012-11-12 | 2022-10-04 | Icu Medical, Inc. | Medical connector |
WO2015119940A1 (en) | 2014-02-04 | 2015-08-13 | Icu Medical, Inc. | Self-priming systems and methods |
SG11201608546TA (en) | 2014-04-18 | 2016-11-29 | Becton Dickinson Co | Needle capture safety interlock for catheter |
BR122019017170B1 (pt) | 2015-08-18 | 2022-08-16 | B. Braun Melsungen Ag | Montagem de cateter |
DE102016106626A1 (de) | 2016-04-11 | 2017-10-12 | Joline Gmbh & Co. Kg | Einführkatheter mit einem Ventilkörper |
US11213656B2 (en) | 2016-04-15 | 2022-01-04 | Becton, Dickinson And Company | Medical device with anti-rotation push tab |
EP4233969A3 (en) | 2016-04-15 | 2023-09-13 | Becton, Dickinson and Company | Medical device with anti-rotation push tab |
CA3032639A1 (en) * | 2016-08-04 | 2018-02-08 | Nipro Corporation | Valved needle assembly and indwelling needle assembly |
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USD821574S1 (en) | 2017-01-25 | 2018-06-26 | Becton, Dickinson And Company | Needle hub |
USD865956S1 (en) | 2017-01-25 | 2019-11-05 | Becton, Dickinson And Company | Catheter assembly |
USD859651S1 (en) | 2017-01-25 | 2019-09-10 | Becton, Dickinson And Company | Catheter hub |
US10569072B2 (en) * | 2017-03-13 | 2020-02-25 | Boston Scientific Limited | Hemostasis valves and methods for making and using hemostasis valves |
JP7209948B2 (ja) * | 2017-08-02 | 2023-01-23 | ニプロ株式会社 | 止血弁付留置針および留置針組立体 |
JP2021515687A (ja) * | 2018-03-05 | 2021-06-24 | ポリー メディキュア リミテッド | 静脈内カテーテル組立品 |
WO2020127328A1 (en) | 2018-12-17 | 2020-06-25 | B. Braun Melsungen Ag | Over-the-needle catheter assemblies and related manufacturing method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03114475A (ja) * | 1989-09-29 | 1991-05-15 | Terumo Corp | 医療用弁体及びその製法並びに弁体付カテーテル |
JPH07148265A (ja) * | 1993-11-29 | 1995-06-13 | Nippon Zeon Co Ltd | 止血弁を有する医療器具 |
US20100204648A1 (en) | 2009-02-11 | 2010-08-12 | Becton, Dickinson And Company | Systems and methods for providing a flushable catheter assembly |
US20110046570A1 (en) * | 2009-08-20 | 2011-02-24 | Becton, Dickinson And Company | Systems and methods for providing a flushable catheter assembly |
JP2011519668A (ja) * | 2008-05-08 | 2011-07-14 | ベクトン・ディキンソン・アンド・カンパニー | プッシュボタン式血液制御 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61131723A (ja) * | 1984-10-05 | 1986-06-19 | オリンパス光学工業株式会社 | 内視鏡用鉗子栓 |
US5149327A (en) | 1989-09-05 | 1992-09-22 | Terumo Kabushiki Kaisha | Medical valve, catheter with valve, and catheter assembly |
US5053014A (en) * | 1990-02-01 | 1991-10-01 | Critikon, Inc. | Catheter with controlled valve |
US5195980A (en) * | 1992-01-03 | 1993-03-23 | Thomas Medical Products, Inc. | Hemostatic valve |
US5911710A (en) * | 1997-05-02 | 1999-06-15 | Schneider/Namic | Medical insertion device with hemostatic valve |
JP3991438B2 (ja) * | 1998-03-31 | 2007-10-17 | 日本ゼオン株式会社 | 医療用弁体および医療用挿入補助具 |
US20050187524A1 (en) * | 2000-12-19 | 2005-08-25 | Willis Allan F. | Sealing valve assembly for medical products |
CN100460030C (zh) * | 2002-08-12 | 2009-02-11 | 株式会社Jms | 无针接口及其制造方法 |
US8034035B2 (en) * | 2004-01-29 | 2011-10-11 | Navilyst Medical, Inc. | Pressure activated safety valve with high flow slit |
US20070196414A1 (en) * | 2006-02-23 | 2007-08-23 | Ola Hammarsten | Device to prevent blood leakage using intravenous catheters |
US8074338B2 (en) * | 2006-11-06 | 2011-12-13 | Becton, Dickinson And Company | Vascular access devices including a tear-resistant septum |
US20080132833A1 (en) * | 2006-11-06 | 2008-06-05 | Becton, Dickinson And Company | Vascular access devices including a tear-resistant septum |
CN201033193Y (zh) * | 2007-05-15 | 2008-03-12 | 上海林华医疗器械有限公司 | 静脉留置针止血密封塞 |
PT2164553T (pt) * | 2007-06-22 | 2018-06-18 | Medical Components Inc | Canhão para um conjunto de bainha destacável com válvula de hemostasia |
CN201286901Y (zh) * | 2008-09-12 | 2009-08-12 | 吴林元 | 静脉留置针隔离塞 |
JP5321957B2 (ja) * | 2008-10-03 | 2013-10-23 | ニプロ株式会社 | 留置針組立体 |
MY163971A (en) * | 2009-10-01 | 2017-11-15 | Braun Melsungen Ag | Catheter insertion device |
CN201612944U (zh) * | 2009-12-08 | 2010-10-27 | 上海锦泽夏本医疗器械有限公司 | 一种逆流防止阀以及采用该防止阀的留置针 |
JP5785951B2 (ja) * | 2009-12-15 | 2015-09-30 | クック・メディカル・テクノロジーズ・リミテッド・ライアビリティ・カンパニーCook Medical Technologies Llc | 低丈ワンウェイバルブ |
CN201862061U (zh) * | 2010-09-07 | 2011-06-15 | 陈尊孔 | 蝶式双安全留置针 |
-
2012
- 2012-09-12 AU AU2012317947A patent/AU2012317947B2/en active Active
- 2012-09-12 CN CN201280043941.2A patent/CN103842021B/zh active Active
- 2012-09-12 EP EP12835725.8A patent/EP2762193B1/en active Active
- 2012-09-12 JP JP2013536153A patent/JP6067567B2/ja active Active
- 2012-09-12 WO PCT/JP2012/073328 patent/WO2013047205A1/ja active Application Filing
-
2014
- 2014-03-27 US US14/227,941 patent/US9095679B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03114475A (ja) * | 1989-09-29 | 1991-05-15 | Terumo Corp | 医療用弁体及びその製法並びに弁体付カテーテル |
JPH07148265A (ja) * | 1993-11-29 | 1995-06-13 | Nippon Zeon Co Ltd | 止血弁を有する医療器具 |
JP2011519668A (ja) * | 2008-05-08 | 2011-07-14 | ベクトン・ディキンソン・アンド・カンパニー | プッシュボタン式血液制御 |
US20100204648A1 (en) | 2009-02-11 | 2010-08-12 | Becton, Dickinson And Company | Systems and methods for providing a flushable catheter assembly |
US20110046570A1 (en) * | 2009-08-20 | 2011-02-24 | Becton, Dickinson And Company | Systems and methods for providing a flushable catheter assembly |
Non-Patent Citations (1)
Title |
---|
See also references of EP2762193A4 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10061899B2 (en) | 2008-07-09 | 2018-08-28 | Baxter International Inc. | Home therapy machine |
US10068061B2 (en) | 2008-07-09 | 2018-09-04 | Baxter International Inc. | Home therapy entry, modification, and reporting system |
US10095840B2 (en) | 2008-07-09 | 2018-10-09 | Baxter International Inc. | System and method for performing renal therapy at a home or dwelling of a patient |
US10224117B2 (en) | 2008-07-09 | 2019-03-05 | Baxter International Inc. | Home therapy machine allowing patient device program selection |
US10089443B2 (en) | 2012-05-15 | 2018-10-02 | Baxter International Inc. | Home medical device systems and methods for therapy prescription and tracking, servicing and inventory |
CN109745615A (zh) * | 2013-07-30 | 2019-05-14 | 贝克顿·迪金森公司 | 采用具有挠性固位臂的致动器的血液控制导管阀 |
CN109745615B (zh) * | 2013-07-30 | 2021-12-07 | 贝克顿·迪金森公司 | 采用具有挠性固位臂的致动器的血液控制导管阀 |
WO2015141366A1 (ja) * | 2014-03-20 | 2015-09-24 | テルモ株式会社 | カテーテル組立体 |
WO2015141365A1 (ja) * | 2014-03-20 | 2015-09-24 | テルモ株式会社 | カテーテル組立体 |
JPWO2015141366A1 (ja) * | 2014-03-20 | 2017-04-06 | テルモ株式会社 | カテーテル組立体 |
WO2021210484A1 (ja) * | 2020-04-17 | 2021-10-21 | ニプロ株式会社 | 針組立体 |
Also Published As
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CN103842021B (zh) | 2017-06-27 |
US20140213987A1 (en) | 2014-07-31 |
AU2012317947B2 (en) | 2015-06-11 |
JP6067567B2 (ja) | 2017-01-25 |
EP2762193A4 (en) | 2015-08-19 |
EP2762193B1 (en) | 2016-10-26 |
AU2012317947A1 (en) | 2014-03-20 |
CN103842021A (zh) | 2014-06-04 |
JPWO2013047205A1 (ja) | 2015-03-26 |
US9095679B2 (en) | 2015-08-04 |
EP2762193A1 (en) | 2014-08-06 |
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