[go: up one dir, main page]

WO2024211166A1 - Système de cathéter de sécurité passif - Google Patents

Système de cathéter de sécurité passif Download PDF

Info

Publication number
WO2024211166A1
WO2024211166A1 PCT/US2024/022048 US2024022048W WO2024211166A1 WO 2024211166 A1 WO2024211166 A1 WO 2024211166A1 US 2024022048 W US2024022048 W US 2024022048W WO 2024211166 A1 WO2024211166 A1 WO 2024211166A1
Authority
WO
WIPO (PCT)
Prior art keywords
introducer needle
catheter
needle
hub
elongated slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/US2024/022048
Other languages
English (en)
Inventor
Edwin JEYASEELAN A.
Balaji Kannan
Mukilan BALAMURUGAN
Darin Charles Vincent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US18/618,940 external-priority patent/US20240335641A1/en
Application filed by Becton Dickinson and Co filed Critical Becton Dickinson and Co
Priority to CN202480015357.9A priority Critical patent/CN120813402A/zh
Publication of WO2024211166A1 publication Critical patent/WO2024211166A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

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
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • 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
    • A61M25/0097—Catheters; Hollow probes characterised by the hub
    • 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
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard

Definitions

  • a common type of catheter assembly includes a peripheral intravenous catheter (“PIVC”) that is over-the-needle.
  • PIVC peripheral intravenous catheter
  • the catheter assembly may include a catheter adapter, the PIVC extending distally from the catheter adapter, and the introducer needle extending through the PIVC.
  • the PIVC and the introducer needle may be assembled such that the distal tip of the introducer needle extends beyond the distal tip of the PIVC with the bevel of the needle facing up away from skin of the patient immediately prior to insertion into the skin.
  • the PIVC and the introducer needle are generally inserted at a shallow angle through the skin into vasculature of the patient.
  • a clinician may confirm that there is flashback of blood in a flashback chamber of the catheter assembly or in a space between the introducer needle and the PIVC. Once placement of the introducer needle has been confirmed, the clinician may remove the introducer needle, leaving the PIVC in place for future blood withdrawal or fluid infusion.
  • the catheter assembly such as, for example, the BD INSYTETM AUTOGUARDTM Shielded IV Catheter, available from Becton Dickinson and Company of Franklin Lakes, New Jersey, may include a push button configured to retract the introducer needle after the PIVC is in place within the vein.
  • a common problem with this type of retraction mechanism is blood splatter due to rapid and/or non-linear retraction of the introducer needle after depression of the push button. The blood splatter may contribute to increased occurrences of bloodborne virus exposures.
  • Silicone gel is often used as a damper to delay a release time of a spring configured to retract the introducer needle, which may reduce the blood splatter. The silicone gel, however, may be messy and/or difficult to apply.
  • the present disclosure relates generally to vascular access devices, systems, and methods.
  • the present disclosure relates to a catheter system having a compressible element or other needle shield element configured to block or shield an introducer needle in a passive manner.
  • the catheter system may block or shield the introducer needle automatically in response to proximal retraction of the introducer needle.
  • the catheter system may also be configured to reduce blood splatter due to a reduced speed of the introducer needle during proximal retraction of the introducer needle compared to, for example, the BD INSYTETM AUTOGUARDTM Shielded IV Catheter, available from Becton Dickinson and Company of Franklin Lakes, New Jersey.
  • the catheter system may include a catheter hub, which may include a distal end, a proximal end, and a lumen extending through the distal end and the proximal end.
  • the catheter system may include a catheter extending from the distal end of the catheter hub.
  • the catheter system may include a needle hub and an introducer needle, which may extend distally from the needle hub.
  • the introducer needle may extend through the catheter when the introducer needle is in an advanced position.
  • the catheter system may include a compressible element, which may include a first hole and a second hole.
  • the introducer needle may extend through the first hole and the second hole when the introducer needle is in the advanced position.
  • the introducer needle in response to movement of the introducer needle proximally to a retracted position, the introducer needle may be removed from the first hole and the second hole and the compressible element may expand.
  • the first hole and the second hole in response to the compressible element expanding, the first hole and the second hole may misalign, shielding the introducer needle.
  • the catheter system may include a housing.
  • the housing may include a pocket and an insertion slot transverse to a longitudinal axis of the housing and providing access to the insertion slot.
  • a distal end of the housing may be coupled to the proximal end of the catheter hub.
  • the compressible element may be disposed within the pocket.
  • the compressible element may be configured to compress in order to fit through the insertion slot and into the pocket.
  • the housing may include an elongated slot aligned with the longitudinal axis of the housing.
  • a distal end of the housing may be coupled to the proximal end of the catheter hub.
  • the needle hub may extend through the elongated slot and may be configured to move along the elongated slot to move the introducer needle from the advanced position to the retracted position.
  • the elongated slot may be a first elongated slot
  • the housing may include a second elongated slot aligned with the longitudinal axis of the housing.
  • the needle hub may extend through the first elongated slot and may be configured to move along the first elongated slot and the second elongated slot to move the introducer needle from the advanced position to the retracted position.
  • a proximal end of the elongated slot may include a retainer snap.
  • the compressible element may include a coil shape.
  • the first hole may be disposed in a first end of the coil shape and the second hole may be disposed in a second end of the coil shape.
  • the coil shape is flattened and/or may form a ring.
  • the first end of the coil shape and the second end of the coil shape may be positioned inwardly from the ring.
  • the compressible element may include a first flange and a second flange.
  • the introducer needle may extend between the first flange and the second flange when the introducer needle is in the advanced position.
  • the introducer needle in response to movement of the introducer needle proximally to a retracted position, the introducer needle may not contact the first flange and the second flange and the first flange may overlap the second flange, shielding the introducer needle.
  • the compressible element may include the coil shape, which may be flattened and/or form a ring.
  • the first flange and the second flange may be positioned inwardly from the ring.
  • the catheter system may include a needle shield element, which may include a movable center and multiple flexible arms extending outwardly from the movable center.
  • the movable center may include an aperture therethrough.
  • the introducer needle may extend through the aperture when the introducer needle is in the advanced position biasing the movable center in a first position.
  • the introducer needle in response to movement of the introducer needle proximally to a retracted position, the introducer needle may be removed from the aperture and the movable center may move to a second position in which the aperture is offset from a longitudinal axis of the introducer needle, shielding the introducer needle.
  • the needle shield element may be disposed within the housing.
  • the needle hub may include a hub lock slot.
  • a proximal end of the housing may include a rib configured to lock within the hub lock slot in response to the introducer needle being moved from the advanced position to the retracted position.
  • Figure 1 A is an upper perspective view of an example catheter system, illustrating an example introducer needle in an advanced position, according to some embodiments;
  • Figure IB is an upper perspective view of the catheter system, illustrating the introducer needle in an example retracted position, according to some embodiments;
  • Figure 1C is a side view of the catheter system, illustrating the introducer needle in the advanced position, according to some embodiments;
  • Figure ID is a side view of the catheter system, illustrating the introducer needle in the retracted position, according to some embodiments
  • Figure 2A is a cross-sectional view of the catheter system along the line 2A-2A of Figure 1C, according to some embodiments;
  • Figure 2B is a cross-sectional view of the catheter system similar to the cross-sectional view of Figure 2A but illustrating the introducer needle in between the advanced position and the retracted position, a portion of the introducer needle being shown for illustrative purposes, according to some embodiments;
  • Figure 2C is a proximal-end view of an example compressible element, illustrating the compressible element in a compressed position, according to some embodiments;
  • Figure 2D is an upper perspective view of the compressible element in the compressed position, according to some embodiments.
  • Figure 2E is a side view of the compressible element, according to some embodiments.
  • Figure 3A is a cross-sectional view of the catheter system along the line 3A-3A of
  • Figure 3B is a cross-sectional view of the catheter system similar to the cross-sectional view of Figure 3 A but illustrating the introducer needle in the retracted position, a portion of the introducer needle being shown for illustrative purposes, according to some embodiments;
  • Figure 3C is a proximal-end view of the compressible element, illustrating the compressible element in a relaxed position, according to some embodiments;
  • Figure 3D is an upper perspective view of the compressible element, illustrating the compressible element in the relaxed position, according to some embodiments;
  • Figure 4A is an upper perspective view of an example distal portion of an example housing, according to some embodiments.
  • Figure 4B is an upper perspective view of the housing, according to some embodiments.
  • Figure 4C is an upper perspective view of an example proximal end of the housing, according to some embodiments;
  • Figure 4D is an upper perspective view of an example needle hub and example introducer needle extending from the needle hub, according to some embodiments;
  • Figure 4E is an upper perspective view of an example catheter assembly, according to some embodiments.
  • Figure 4F is a cross-sectional view of the catheter assembly, according to some embodiments.
  • Figure 4G is a cross-sectional view of the catheter assembly, illustrating an example septum actuator coupled to a spring, according to some embodiments;
  • Figure 5A is a cross-sectional view of the catheter system similar to the cross-sectional view of Figure 2B but illustrating another compressible element, according to some embodiments;
  • Figure 5B is an upper perspective view of the other compressible element, illustrating the compressible element in an example expanded position, according to some embodiments;
  • Figure 5C is another upper perspective view of the other compressible element, illustrating the compressible element in the expanded position, according to some embodiments.
  • Figure 5D is a cross-sectional view similar to Figure 3B but illustrating the other compressible element in the expanded position, according to some embodiments;
  • Figure 5E is an upper perspective view of the other compressible element in an example relaxed position, according to some embodiments;
  • Figure 5F is another upper perspective view of the other compressible element in the relaxed position, according to some embodiments.
  • Figure 6A is a partial cutaway view of the catheter system, illustrating the other compressible element in the relaxed position and the introducer needle in the retracted position, according to some embodiments;
  • Figure 6B is a partial cutaway view of an example distal portion of the catheter system, illustrating the other compressible element in the expanded position and the introducer needle in the advanced position, according to some embodiments;
  • Figure 6C is a partial cutaway view of the distal portion of the catheter system, illustrating the other compressible element in the relaxed position and the introducer needle in the retracted position, according to some embodiments;
  • Figure 7A is a distal-end view of an example needle shield element, according to some embodiments.
  • Figure 7B is an upper perspective view of the needle shield element, according to some embodiments.
  • Figure 7C is a partial cutaway of the needle shield element disposed within the housing with a distal end of the housing removed for illustrative purposes and the needle in the advanced position, according to some embodiments;
  • Figure 7D is a partial cutaway of the needle shield element disposed within the housing with a distal end of the housing removed for illustrative purposes and the needle in the retracted position, according to some embodiments;
  • Figure 8A is an upper perspective view of an example housing having an example rib, according to some embodiments;
  • Figure 8B is an upper perspective view of the needle hub configured to interact with the rib, according to some embodiments.
  • Figure 8C is a cross-sectional view of the housing having the example rib coupled to the needle hub, according to some embodiments.
  • Figure 8D is a bottom view of the housing having the example rib coupled to the needle hub, according to some embodiments.
  • Figure 8E is a lower perspective view of the housing having the example rib coupled to the needle hub, according to some embodiments.
  • Figure 9A is an upper perspective view of another example housing, according to some embodiments.
  • Figure 9B is an upper perspective view of the other housing, according to some embodiments.
  • Figure 9C is an upper perspective of a distal portion of the other housing coupled to the needle hub, according to some embodiments.
  • Figure 9D is a lower perspective view of the other housing coupled to the catheter assembly, according to some embodiments.
  • Figure 9E is a cross-sectional view of the other housing coupled to the catheter assembly along the line 9E-9E of Figure 9D, according to some embodiments;
  • Figure 9F is a side view of a catheter assembly including the other housing, illustrating the introducer needle in the advanced position, according to some embodiments
  • Figure 9G is a side view of the catheter assembly including the other housing, illustrating the introducer needle in the advanced position, according to some embodiments
  • Figure 9H is a cross-sectional view of the catheter assembly along the line 9H-9H of Figure 9F, according to some embodiments.
  • Figure 91 is a cross-sectional view of the catheter assembly along the line 91-91 of Figure 9G, according to some embodiments.
  • a catheter system 10 may include a catheter hub 12, which may include a distal end 14, a proximal end 16, and a lumen 18 extending through the distal end 14 and the proximal end 16.
  • the catheter system 10 may include a catheter 20 extending from the distal end 14 of the catheter hub 12.
  • the catheter system 10 may include a needle hub 22 and an introducer needle 24, which may extend distally from the needle hub 22.
  • the introducer needle 24 may include a sharp distal tip configured to puncture through skin of a patient and facilitate insertion of the catheter 20 into a blood vessel of a patient.
  • the introducer needle 24 may extend through the catheter 20 when the introducer needle 24 is in an advanced position, as illustrated, for example, in Figures 1A and 1C.
  • the catheter system 10 may include a compressible element 26, which may include a first hole 28 and a second hole 30.
  • a size and a shape of the first hole 28 and the second hole 30 may be identical or similar.
  • a diameter of the first hole 28 and the second hole 30 may be slightly greater than an outer diameter of the introducer needle 24 such that the introducer needle 24 fits through the first hole 28 and the second hole 30.
  • the first hole 28 and/or the second hole 30 may be circular or a same shape as the introducer needle 24, which may facilitate less potential movement of the compressible element 26 when the introducer needle 24 extends through the first hole 28 and the second hole 30.
  • the introducer needle 24 may extend through the first hole 28 and the second hole 30 when the introducer needle 24 is in the advanced position, as illustrated, for example, in Figure 2A.
  • the compressible element 26 may be in a compressed position.
  • the first hole 28 and the second hole 30 may be coaxial with the introducer needle 24 when the introducer needle 24 is in the advanced position.
  • the first hole 28 in the advanced position, may be aligned or concentrically aligned with the second hole 30.
  • the introducer needle 24 may be moved proximally to a retracted position, such as illustrated, for example, in Figure IB and ID.
  • the introducer needle 24 in response to movement of the introducer needle 24 proximally to a retracted position, the introducer needle 24 may be removed from the first hole 28 and the second hole 30 and the compressible element 26 may expand.
  • the first hole 28 and the second hole 30 in response to the compressible element 26 expanding, the first hole 28 and the second hole 30 may misalign or move apart, as illustrated, for example, in Figure 3A, shielding the introducer needle 24 from distal movement beyond the compressible element 26, thereby reducing a risk of escape of the introducer needle 24 from the housing 32 and subsequent needle stick injury.
  • the compressible element 26 (or the compressible element 60 of Figures 5-6 or the needle shield element 66 of Figure 7) may be configured to block or shield the introducer needle 24 in a passive manner.
  • the catheter system 10 may block or shield the introducer needle 24 automatically in response to proximal retraction of the introducer needle 24 from the advanced position to the retracted position.
  • the compressible element 26 may provide passive safety and also reduce blood splatter due to a reduced speed of the introducer needle 24 during the proximal retraction of the introducer needle 24 that is manual.
  • the needle hub 22 may travel from a first position in which the introducer needle 24 is advanced to a second position in which the introducer needle 24 is retracted. In some embodiments, in response to the needle hub 22 moving from the first position to the second position, the compressible element will expand to protect the introducer needle 24 within the housing 32.
  • the catheter system 10 may include a housing 32, which may include a barrel.
  • the housing 32 may include a pocket 34 and an insertion slot 36 transverse to a longitudinal axis of the housing 32 and providing access to the insertion slot 36.
  • a distal end 38 of the housing 32 may be coupled to the proximal end 16 of the catheter hub 12.
  • the compressible element 26 may be disposed within the pocket 34.
  • the compressible element 26 may be configured to compress in order to fit through the insertion slot 36 and into the pocket 34 during assembly of the catheter system 10.
  • the compressible element 26 may be constructed of metal, plastic, or another suitable material.
  • the housing 32 may include an elongated slot 42 aligned with the longitudinal axis of the housing 32.
  • the distal end 38 of the housing 32 may be coupled to the proximal end 16 of the catheter hub 12.
  • the distal end 38 of the housing 32 may include a luer adapter or another type of connector configured to form a fluid tight seal with the proximal end 16 of the catheter hub 12.
  • the luer adapter may include a small protrusion that locks rotation of the catheter hub 12 and ensures a bevel of the introducer needle 24 is facing upwards.
  • the distal end 38 of the housing 32 may include a male luer adapter.
  • the needle hub 22 may extend through the elongated slot 42 and may be configured to move along the elongated slot 42 to move the introducer needle 24 from the advanced position to the retracted position.
  • the housing 32 may include a proximal end 40, and the needle hub 22 may slide along the elongated slot 42 towards the proximal end 40 to the retracted position in order to retract the introducer needle 24.
  • the needle hub 22 may include one or more grip elements 43 configured for friction with a finger of a user to facilitate sliding of the needle hub 22 along the elongated slot 42.
  • a proximal end of the elongated slot 42 may include a retainer snap 45.
  • the retainer snap 45 may prevent the needle hub 22 from exiting the elongated slot 42 while the retracting the introducer needle 24 or moving the introducer needle 24 from the advanced position to the retracted position.
  • the retainer snap 45 may include two opposing protrusions, which may be spaced apart. In some embodiments, the retainer snap 45 may facilitate placement of the needle hub 22 within the elongated slot 42 during assembly of the catheter system 10.
  • the compressible element 26 may include a coil shape, as illustrated, for example, in Figures 2C-2E and 3C-3D.
  • the first hole 28 may be disposed in a first end 44 of the coil shape and the second hole 30 may be disposed in a second end 46 of the coil shape.
  • the coil shape may be flattened, which may facilitate insertion of the compressible element 26 through the insertion slot 36.
  • the coil shape may include a distally-facing surface 48, a proximally-facing surface 50, and an edge 52 transverse to the distally-facing surface 48 and the proximally-facing surface 50. In other embodiments, the coil shape may not be flattened.
  • the coil shape may form a ring, which may include an outer edge of the compressible element 26.
  • the first end 44 of the coil shape and the second end 46 of the coil shape may be positioned inwardly from the ring or the outer edge.
  • the elongated slot 42 may be a first elongated slot 42a, and the housing 32 may include a second elongated slot 42b aligned with the longitudinal axis of the housing 32.
  • the second elongated slot 42b may be similar to the first elongated slot 42a in terms of one or more features and/or operation.
  • the needle hub 22 may extend through the first elongated slot 42a and the second elongated slot 42b.
  • the needle hub 22 may be configured to move along the first elongated slot 42a and the second elongated slot 42b to move the introducer needle 24 from the advanced position to the retracted position.
  • the needle hub 22 may include one or more elongated slider elements 54, which may extend across the elongated slot 42.
  • the grip elements 43 may be disposed on the elongated slider elements 54.
  • the elongated slider elements 54 may be positioned outwardly from a generally cylindrical feature that is assembled concentrically with the introducer needle 24 and/or includes a vent plug.
  • the needle hub 22 may include two elongated slider elements 54a, 54b, which may be opposing and configured to extend across the first elongated slot 42a and the second elongated slot 42b, respectively.
  • the elongated slider elements 54a, 54b may be disposed on a left and right side, respectively, of the catheter system, which may facilitate sliding with a thumb and index finger, for example.
  • the catheter hub 12 may include blood control, such as a septum 56 and/or a septum actuator 58.
  • a spring 59 may be disposed within the catheter hub 12 and coupled to the septum actuator 58.
  • the septum actuator 58 in response to coupling of a medical device, such as a male luer (not shown), to the proximal end 16 of the catheter hub, the septum actuator 58 may be urged distally from an initial position by the medical device and may penetrate a slit of the septum 56.
  • the spring 59 may facilitate return of the septum actuator 58 to the initial position proximal to the septum 56 in response to removal of the medical device from the proximal end 16 of the catheter hub 12.
  • a catheter assembly may be multi-use with the septum actuator 58 coupled to the spring 59, facilitating opening and closing of the septum 56.
  • the catheter assembly may be single-use having a particular septum actuator 58 that keeps the septum 56 open even after the medical device is removed (see Figure 4F, for example).
  • the catheter assembly including the catheter 20 and/or the catheter hub 12, may include a peripheral intravenous catheter assembly.
  • the catheter assembly may include a midline catheter assembly, a peripherally-inserted central catheter assembly, or another suitable type of catheter assembly.
  • the catheter system 10 of Figures 1- 4 may include a compressible element 60 instead of the compressible element 26.
  • the compressible element 60 may be similar or identical to the compressible element 26 in terms of one or more features and/or operation.
  • the compressible element 60 may be constructed of metal, plastic, or another suitable material.
  • the compressible element 60 may include a first flange 62 and a second flange 64.
  • the introducer needle 24 may extend between the first flange 62 and the second flange 64 when the introducer needle 24 is in the advanced position. In some embodiments, when the introducer needle 24 is in the advanced position, the first flange 62 and the second flange 64 may press against the introducer needle 24.
  • the introducer needle 24 in response to movement of the introducer needle 24 proximally to the retracted position, the introducer needle 24 may not contact the first flange 62 and the second flange 64 and the first flange 62 may overlap the second flange 64, shielding the introducer needle 24 from distal movement beyond the compressible element 60.
  • the first flange 62 and the second flange 64 when the introducer needle 24 is in the retracted position, the first flange 62 and the second flange 64 may move towards each other such that the introducer needle 24 cannot pass therethrough.
  • the compressible element 60 may include the coil shape, which may be flattened and/or form the ring.
  • the first flange 62 and the second flange 64 may be positioned inwardly from the ring.
  • the catheter system 10 of Figures 1- 4 may include a needle shield element 66 instead of the compressible element 26.
  • the needle shield element 66 may include a movable center 68 and multiple flexible arms 70 extending outwardly from the movable center 68.
  • the movable center 68 may include an aperture 72 therethrough.
  • the aperture 72 may be disposed on an eccentric side of the movable center 68 or off-center within the movable center 68.
  • the introducer needle 24 may extend through the aperture 72 when the introducer needle 24 is in the advanced position biasing the movable center 68 in a first position, illustrated, for example, in Figure 7E.
  • the introducer needle 24 extend through the aperture 72 may cause the flexible arms 70 to move in a twisting motion to bias the movable center 68 in the first position.
  • the needle shield element 66 and/or the flexible arms 70 may be constructed of plastic or another suitable material.
  • the introducer needle 24 in response to movement of the introducer needle 24 proximally from the advanced position to the retracted position, the introducer needle 24 may be removed from the aperture 72 and the movable center 68 may move to a second position, illustrated, for example, in Figure 7F, in which the aperture 72 is offset from or misaligned with a longitudinal axis of the introducer needle 24, shielding the introducer needle 24 from distal movement beyond the needle shield element 66.
  • the needle shield element 66 may be disposed within the housing 32.
  • the flexible arms 70 may extend from the movable center 68 to an outer ring 74 of the needle shield element 66.
  • the outer ring 74 may be fitted within the housing 32, which may include the barrel, and secured therein.
  • the flexible arms 70 may extend from the movable center 68 to an outer ring 74 of the needle shield element 66 directly to an inner surface of the housing 32 to which the flexible arms 70 may be secured.
  • the needle hub 22 may include a hub lock slot 76.
  • the proximal end 40 of the housing 32 may include a rib 78 configured to lock within the hub lock slot 76 in response to the introducer needle 24 being moved from the advanced position to the retracted position.
  • the rib 78 may be disposed on a flexible arm 80 of the housing 32, which may facilitate movement of the rib 78 along an outer surface of the needle hub 22 until the rib 78 is disposed within the hub lock slot 76.
  • the needle hub 22 may include a vent plug 82.
  • a shape of the housing 32 of the catheter system 10 may vary.
  • the housing 32 may be cylindrical or rectangular or another suitable shape.
  • Figure 9F illustrates a cover that may be placed over the catheter 20 and the introducer needle 24 prior to use of the catheter system 10.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Un système de cathéter (10) peut comprendre un raccord de cathéter (12), qui peut comprendre une extrémité distale (14), une extrémité proximale (16), et une lumière (18) s'étendant à travers l'extrémité distale du raccord de cathéter et l'extrémité proximale du raccord de cathéter. Le système de cathéter peut comprendre un cathéter (20) s'étendant à partir de l'extrémité distale du raccord de cathéter. Le système de cathéter peut comprendre un raccord d'aiguille (22) et une aiguille d'introduction (24) s'étendant à partir du raccord d'aiguille. L'aiguille d'introduction peut s'étendre à travers le cathéter lorsque l'aiguille d'introduction est dans une position avancée. Le système de cathéter peut comprendre un élément compressible (26) ou un autre élément de protection d'aiguille conçu pour protéger l'aiguille d'introduction d'un mouvement distal au-delà de l'élément compressible ou de l'autre élément de protection d'aiguille.
PCT/US2024/022048 2023-04-06 2024-03-28 Système de cathéter de sécurité passif Pending WO2024211166A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480015357.9A CN120813402A (zh) 2023-04-06 2024-03-28 被动安全导管系统

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202363457641P 2023-04-06 2023-04-06
US63/457,641 2023-04-06
US18/618,940 2024-03-27
US18/618,940 US20240335641A1 (en) 2023-04-06 2024-03-27 Passive safety catheter system and related methods

Publications (1)

Publication Number Publication Date
WO2024211166A1 true WO2024211166A1 (fr) 2024-10-10

Family

ID=91185316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2024/022048 Pending WO2024211166A1 (fr) 2023-04-06 2024-03-28 Système de cathéter de sécurité passif

Country Status (1)

Country Link
WO (1) WO2024211166A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478313A (en) * 1994-08-18 1995-12-26 White; Jennifer A. Needle shield
US5683365A (en) * 1995-06-07 1997-11-04 Johnson & Johnson Medical, Inc. Tip protection device
US20070270753A1 (en) * 2004-02-13 2007-11-22 Smiths Medical Asd, Inc. Needle tip protector
US20100016804A1 (en) * 2008-07-17 2010-01-21 Smiths Medical Asd, Inc. Needle tip spring protector
US20190192825A1 (en) * 2017-12-27 2019-06-27 B. Braun Melsungen Ag Passive release safety shield for catheter assemblies and related methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478313A (en) * 1994-08-18 1995-12-26 White; Jennifer A. Needle shield
US5683365A (en) * 1995-06-07 1997-11-04 Johnson & Johnson Medical, Inc. Tip protection device
US20070270753A1 (en) * 2004-02-13 2007-11-22 Smiths Medical Asd, Inc. Needle tip protector
US20100016804A1 (en) * 2008-07-17 2010-01-21 Smiths Medical Asd, Inc. Needle tip spring protector
US20190192825A1 (en) * 2017-12-27 2019-06-27 B. Braun Melsungen Ag Passive release safety shield for catheter assemblies and related methods

Similar Documents

Publication Publication Date Title
US11992632B2 (en) Catheter system with guidewire advancement element
EP1214115B2 (fr) Protection compacte de pointe d'aiguille
US12121679B2 (en) Intravenous catheter assembly with safety clip
US5911705A (en) One step catheter advancement automatic needle retraction system
US6004294A (en) Catheter and introducer needle assembly with needle shield
US6086563A (en) Needle retraction mechanism with push start retraction
CN104288865B (zh) 用于静脉注射导管的低型面被动保护装置
EP0646387B1 (fr) Assemblage d'introduction d'un cathéter
AU2021204057A1 (en) Cannula capture mechanism
WO2001023028A1 (fr) Ensemble catheter et aiguille d'introduction a caracteristique double avec protection d'aiguille
US20020072711A1 (en) Needle shield using external blunt shield member
US20240335641A1 (en) Passive safety catheter system and related methods
WO2024211166A1 (fr) Système de cathéter de sécurité passif
US20230233811A1 (en) Catheter system having a blood shield
EP4164722B1 (fr) Dispositif de protection d'aiguille et systèmes associés
US20230390532A1 (en) Catheter system having a guidewire slider
EP4469121A1 (fr) Système de cathéter ayant un écran de protection contre le sang
WO2024118298A1 (fr) Système de cathéter comportant un mécanisme de rétraction d'aiguille
WO2000018465A1 (fr) Mecanisme d'escamotage d'aiguille a vitesse d'escamotage constante
CA3204112A1 (fr) Boitier d'ensemble catheter et dispositifs associes

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24727020

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202480015357.9

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 202480015357.9

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 2024727020

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2024727020

Country of ref document: EP

Effective date: 20251106