US20130338577A1 - Fluid Vessel Communication Device - Google Patents

Fluid Vessel Communication Device Download PDF

Info

Publication number
US20130338577A1
US20130338577A1 US14/003,745 US201214003745A US2013338577A1 US 20130338577 A1 US20130338577 A1 US 20130338577A1 US 201214003745 A US201214003745 A US 201214003745A US 2013338577 A1 US2013338577 A1 US 2013338577A1
Authority
US
United States
Prior art keywords
puncture member
sleeve
chamber
pressure
retraction mechanism
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.)
Abandoned
Application number
US14/003,745
Other languages
English (en)
Inventor
Amin H.A. Al-Habaibeh
Arash Bakhtyari-Nejad-Esfahani
Thomas David Stead
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.)
Olberon Medical Innovation SAS
Original Assignee
Olberon Medical Innovation SAS
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
Application filed by Olberon Medical Innovation SAS filed Critical Olberon Medical Innovation SAS
Assigned to NOTTINGHAM TRENT UNIVERSITY, OLBERON LIMITED reassignment NOTTINGHAM TRENT UNIVERSITY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAKHTYARI-NEJAD-ESFAHANI, ARASH, DR., AL-HABAIBEH, AMIN H. A., DR., STEAD, Thomas David
Assigned to OLBERON MEDICAL INNOVATION SAS reassignment OLBERON MEDICAL INNOVATION SAS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NOTTINGHAM TRENT UNIVERSITY, OLBERON LIMITED
Assigned to OLBERON MEDICAL INNOVATION SAS reassignment OLBERON MEDICAL INNOVATION SAS CORRECTIVE ASSIGNMENT TO CORRECT THE THE ASSIGNOR PREVIOUSLY RECORDED ON REEL 031176 FRAME 0969. ASSIGNOR(S) HEREBY CONFIRMS THE THE ASSIGNMENT. Assignors: OLBERON LIMITED
Publication of US20130338577A1 publication Critical patent/US20130338577A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • A61B17/3496—Protecting sleeves or inner probes; Retractable tips
    • 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
    • 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
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • 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
    • A61M25/0693—Flashback chambers

Definitions

  • the present invention relates to a fluid vessel communication device and more particularly to a device for insertion into a vessel so as to allow fluid communication with the interior of the vessel.
  • a fluid vessel communication device and more particularly to a device for insertion into a vessel so as to allow fluid communication with the interior of the vessel.
  • Such devices may be used in medical applications although they are not limited thereto.
  • Intravenous cannulation is a common example of such a medical procedure. It is estimated that there are at least 25 million cannulations a year in the UK alone. Intravenous cannulation is expected routinely to fail in 20-30% of initial attempts and can prove to be problematic for certain patient groups or inexperienced operators.
  • the inventors have determined that at least a portion of failed cannulation attempts can be attributed to the fact that the walls of fluid vessels in the body, such as blood vessels, often do not offer a significant increase in resistance to the travel of a needle compared to the surrounding tissue. Also the depth of the vessel to be punctured may be relatively small such that the operator has little scope for error when attempting to position the needle end with in the vessel.
  • the combination of a small target zone and low tactile feedback mean that operators frequently do not realise when a needle is correctly located in a vein and may insert a needle through the vein and thereby fail in the correct positioning of both the needle and cannula.
  • U.S. Pat. No. 7,175,608 provides an example of such a device, which is specific to the detection of the negative pressure within the epidural space, and which aims to provide a visual indication of correct needle positioning to an operator.
  • a fluid vessel insertion device comprising a puncture member arranged for location within a sleeve, and a retraction mechanism for retracting the puncture member relative to the sleeve in use between a first condition in which an end of the puncture member protrudes beyond an end of the sleeve and a second condition in which the end of the puncture member is within the sleeve, wherein the retraction mechanism actuates the puncture member between the first and second conditions in response to fluid pressure at the end of the puncture member.
  • Fluid pressure may be considered to comprise any or any combination of static or dynamic fluid pressure and may be separate from the contact or friction force experienced by the puncture member due to passage through a vessel wall or surrounding material.
  • the determination of fluid pressure as the trigger for retraction of the puncture member is advantageous since it allows accurate assessment of the point of entry of the puncture member into a vessel of generally known or predictable internal fluid pressure.
  • the determination may be made based on a deviation of fluid pressure form an ambient fluid pressure level.
  • the determination is advantageously not reliant on feedback pertaining to the resistance of the vessel wall to puncturing.
  • the retraction of the puncture member relative to the sleeve requires minimal movement and/or retraction force.
  • the sleeve can reliably remain in the desired position within a vessel with minimal disturbance.
  • the retraction mechanism may be actuated in response to a positive fluid pressure at the end of the puncture member, for example due to a fluid pressure at the end which is greater than atmospheric pressure and/or greater than a fluid pressure level within the device, or a part thereof, such as an internal chamber, which may be within the device.
  • the sleeve may be mounted in a fixed position/orientation with respect to any, or any combination, of the device, the retraction mechanism, the chamber and/or the device housing.
  • the sleeve may be mounted to a support formation, which is in turn removably attachable to the device to provide the desired orientation in use but which is detachable there-from once the puncture member has been retracted.
  • the puncture member may be shaped to allow fluid communication with the retraction mechanism. Typically the puncture member is hollow and allows for the passage of fluid therein.
  • the puncture member may be elongate and/or tubular in form.
  • the puncture member may be tapered towards a sharp end and may comprise a needle or trocar.
  • a hollow puncture member allows fluid pressure at the end of the puncture member to be determined at a spaced location.
  • the retraction mechanism may comprise a chamber in communication with the interior of the puncture member. Accordingly the fluid pressure at the end of the puncture member may be experienced by the chamber.
  • the chamber may be located within a body or housing of the device.
  • the chamber may be maintained at a first, typically atmospheric, pressure in an at-rest condition, which may correspond to the first condition of the retraction mechanism.
  • the chamber may have an actuated condition, which may correspond to the second condition of the retraction mechanism.
  • the change from the first to the second condition of the chamber and/or retraction mechanism may be caused by the elevation of the pressure within the chamber to above the first condition. This may correspond to a positive pressure gradient or differential existing between the interior of the chamber and the fluid pressure at the end of the puncture member.
  • the chamber may comprise one or more deformable walls or formations, which may be actuable in response to the pressure within the chamber.
  • the chamber may comprise a diaphragm. Movement of the diaphragm may trigger the retraction mechanism.
  • a diaphragm has been found to provide a particularly sensitive and responsive trigger/actuator in response to typical vascular fluid pressures.
  • the volume of the chamber and size of the diaphragm, as well as the diaphragm material/mass, can all be tailored to suit a desired use, such as intravenous cannulation.
  • the retraction of the puncture member may be automatic upon experiencing a pressure at or beyond a predetermined pressure difference from ambient.
  • the retraction mechanism may actuate the puncture member in response to a predetermined positive or negative pressure differential.
  • the device does not require pre-pressurisation for correct operation and can be ready for use at an ambient internal pressure.
  • the device comprises a housing for the retraction mechanism and the puncture member depends from the housing such that the free end of the puncture member is spaced from the housing.
  • the puncture member may be insertable into a sleeve such that the sleeve abuts against the housing.
  • the puncture member and/or housing may be arranged to form a friction fit with the sleeve in use.
  • the housing may comprise one or more formations for fitment with the sleeve member.
  • a push-fit or twist-fit engagement formation may be provided on the housing.
  • the retraction mechanism may comprise a chamber and an engagement member which may be releasably engageable with the puncture member in response to change in the fluid pressure within the chamber.
  • the hollow puncture member may have an opening spaced from the end of the puncture member. The opening may open into the chamber so as to allow fluid communication between the end of the puncture member and the chamber. Accordingly a fluid pressure at the end of the needle may be experienced in the chamber.
  • the retraction mechanism may comprise an actuator which is arranged to move the engagement member selectively out of engagement with the puncture member in response to the pressure within the chamber.
  • the puncture member may be biased towards the second condition, for example by a spring.
  • the biasing means may be coupled between the puncture member and the chamber and/or retraction mechanism housing.
  • the engagement member may hold the puncture member against the biasing force of the biasing means and may allow retraction of the puncture member when disengaged there-from.
  • the puncture member may comprise an engagement formation for cooperation with the engagement member.
  • the engagement member may comprise a protrusion depending radially outwardly from the puncture member.
  • the retraction mechanism may comprise a stop member to prevent further retraction of the puncture member beyond a predetermined distance.
  • the stop member may be arranged to abut against the engagement formation of the puncture member in the second condition. The positioning of the stop member advantageously allows for reliable retraction of the puncture member by a predetermined distance.
  • the retraction mechanism may comprise a, inflatable member, such as a diaphragm member coupled to, or formed with, the chamber, which is moveable in response to the fluid pressure in the chamber.
  • the engagement member may be actuable by the inflatable member and may be attached thereto or depend there-from.
  • the inflatable member or diaphragm member may serve as a pressure sensor.
  • the retraction mechanism may comprise an electronic pressure sensor for detecting fluid pressure within the chamber.
  • the actuator may comprise an electrically or electronically operated actuator.
  • the puncture member may be elongate in form and may have a longitudinal axis.
  • the retraction mechanism may actuate the puncture member between the first and second conditions in a substantially axial direction.
  • the device comprises the sleeve.
  • the sleeve may have an open end, through which the puncture member protrudes in the first condition.
  • the open end of the sleeve may be immediately adjacent the end of the puncture member in the first condition.
  • the sleeve is preferably a close or tight fit about the puncture member at its end.
  • the sleeve and the housing preferably remain fastened together at a location spaced from the end of the puncture member.
  • the puncture member is typically elongate in form and has a second end which is supported within the housing.
  • the puncture member and sleeve are typically formed of different materials.
  • the puncture member may be formed of metal whereas the sleeve may be formed of a polymer material.
  • the puncture member and sleeve may be formed of the same material, such as, for example, a metal.
  • Such an embodiment may comprise a two-part needle arrangement.
  • the device comprises a medical device which may take the form of a cannula insertion device.
  • the sleeve may comprise a cannula, which may be a ported cannula.
  • vessel used herein may constitute a conduit, a cavity or a reservoir and should be construed accordingly.
  • FIG. 1 shows a three-dimensional view of an assembly comprising a device and sleeve according to a first embodiment of the present invention
  • FIG. 2 shows the assembly of FIG. 1 with the device and sleeve disassembled
  • FIG. 3 shows a longitudinal section through the assembly of FIG. 1 in a first condition
  • FIG. 4 shows a three dimensional view of the longitudinal section of FIG. 3 ;
  • FIG. 5 shows a longitudinal section of the assembly of FIG. 1 in a second condition
  • FIG. 6 shows a three-dimensional view of an alternative arrangement between the actuator and puncture member according to a second embodiment of the invention
  • FIG. 7 shows a longitudinal section through the assembly according to the second embodiment in a first condition
  • FIG. 8 shows a longitudinal section through the assembly according to the second embodiment in a second condition
  • FIG. 9 shows a three-dimensional view of an assembly comprising a device, a sleeve and a cover according to a third embodiment of the present invention.
  • FIG. 10 shows a longitudinal section through the device according to the third embodiment in a first condition
  • FIG. 11 shows a longitudinal section through the device according to the third embodiment in a second condition
  • FIG. 12 shows a three-dimensional view of an assembly comprising a device and sleeve according to a fourth embodiment of the present invention
  • FIG. 13 shows a longitudinal section through the assembly of FIG. 12 in a first condition
  • FIG. 14 shows a longitudinal section through the assembly of FIG. 12 in a second condition
  • FIG. 15 shows a three-dimensional view of an assembly comprising a device and sleeve according to a fifth embodiment of the present invention
  • FIG. 16 shows a longitudinal section through the assembly of FIG. 15 in a first condition
  • FIG. 17 shows a longitudinal section through the assembly of FIG. 15 in a second condition
  • FIGS. 18A and 18B show further optional features of a puncture device according to the invention.
  • FIG. 19 shows an additional or alternative safety feature to the arrangement of FIG. 18 .
  • the invention to be described below derives from the conception of an automatic mechanism to cause withdrawal of the puncture device out of a fluid vessel once a sleeve is correctly positioned for communication with the fluid vessel.
  • a medical device for insertion of a sleeve such as a cannula into a fluid vessel within a body
  • the device is triggered when the needle moves from surrounding tissue into the vessel. This removes the need for the operator to manually retract the needle upon determination of the correct location of the needle in, for example a vein.
  • the automation of this part of the process mitigates against a major cause of cannula insertion failure due to poor detection of the instant the vein is punctured.
  • This invention may trigger automatic withdrawal of the puncture member as soon as the sleeve is inserted into the vessel based on the change in pressure between the fluid in the vessel and the fluid or other matter outside of the vessel.
  • the invention finds particular use in the insertion of a conduit into a fluid vessel in the body, it is not limited to vascular access applications and may be used in other instances where it is necessary to undertake such an operation with minimal loss of fluid and/or where manual control of the operation is prone to potential failure.
  • FIGS. 1 to 5 there is shown a first embodiment of an assembly 10 and device 12 according to the invention, which may be used for percutaneous vascular access.
  • the assembly 10 generally comprises a puncture device 12 and sleeve arrangement 14 .
  • the device comprises a housing 16 and a puncture member 18 , in the form of a needle, depending there-from.
  • the sleeve arrangement 14 takes the form of a cannula which may be conventional in design, having an elongate plastic or metal tube 20 depending from a support formation 22 .
  • the tube 20 is of generally constant diameter but with a tapered formation towards its free end 24 .
  • the tube 20 has a longitudinal axial bore which opens into the interior of the support formation 22 such that the sleeve arrangement is substantially hollow along its entire length.
  • the bore through the support formation is of greater diameter than that through the tube formation and has a tapered wall 26 by way of a neck portion which joins a tube-engaging end of the support formation to its main body.
  • the sleeve arrangement 14 also comprises lateral protrusions in the form of lobes 28 depending outwardly from the longitudinal axis which are located against the surface of a patient's skin during use.
  • the sleeve arrangement in this embodiment is ‘ported’ in that it has a further port 30 depending substantially radially outwardly from the body of the support formation.
  • the port 30 provides a side duct which feeds into the cavity of the support formation to allow fluid communication with the tube 24 .
  • this duct 30 may be omitted.
  • the device 12 comprises a recess 31 about the region of entry of the needle 18 into the housing 16 .
  • the recess 31 is shaped to form a friction fit about the open end of the support formation 22 of the sleeve 14 .
  • the recess 31 may be slightly tapered or otherwise shaped to provide a tight fitment with the sleeve 14 .
  • the sleeve and/or housing 16 may comprise corresponding fixing formations so as to allow for a twist-fit engagement there-between.
  • the sleeve 14 is fixed to the housing for use in a manner shown in FIG. 1 , such that the needle tip 18 A protrudes slightly beyond the free end 24 of the cannula tube 20 .
  • the needle end 18 A is tapered to provide a sharp puncturing formation at the end of a main tube portion which is of substantially constant diameter along its length.
  • the taper in the tubular needle construction forms an end opening, which is obliquely oriented relative to the longitudinal axis of the needle, and which is generally elliptical in plan.
  • the sleeve end 24 is arranged in use as close a practicably possible to the edge of the opening in the needle at end 18 A.
  • the arrangement of the sleeve 14 and the connection thereof to the device 10 is generally common to all embodiments to be described in relation to FIGS. 3-17 below and will not be repeated for conciseness. Whilst the invention is primarily concerned with the operation of the device itself, the device is configured for use with such a sleeve and is typically distributed as an assembly in which the device and sleeve 14 are assembled in a ready-to-use condition.
  • FIGS. 3-5 the device 12 and its operation with respect to the sleeve will now be described.
  • the device housing 16 is shaped so as to define an internal chamber 32 .
  • the chamber 32 has front 34 and rear 36 end walls with openings therein aligned with the longitudinal axis of the needle 18 and shaped to closely surround the needle 18 in a fluid tight manner.
  • the chamber 32 is generally cylindrical in shape although it need not be limited to such a configuration.
  • a rear bore or recess 38 On the opposing side of the rear wall 36 to the chamber 32 is a rear bore or recess 38 , defined by a rearwardly extending cylindrical portion 40 of the housing 16 .
  • a body 42 in the form of a bung or stop is located in the recess 38 and is moveable in an axial direction there-in.
  • the body 42 is biased in a rearward, retraction direction (as shown by arrow A) by biasing member 44 , which in this embodiment takes the form of a coiled spring.
  • biasing member 44 which in this embodiment takes the form of a coiled spring.
  • the body 42 is braced against the internal wall 36 of the housing, with the spring 44 trapped in compression there-between.
  • the needle 18 is elongate in form and extends from end 18 B which is mounted in the housing 16 , specifically in the body 42 within the housing, through the chamber 32 and the walls 34 and 36 thereof to its free end 18 A which is spaced from the housing. Accordingly the needle is mounted in the housing and depends there-from.
  • an opening 46 is provided within the portion of the needle 18 that passes through the housing chamber 32 .
  • the portion of the needle 18 that is within the housing chamber 32 is also provided with an engagement formation 48 which depends radially outwardly from the needle body.
  • the engagement formation may take the form of a tapered or ramped stop member, which may be frusto-conical in shape.
  • the chamber 32 communicates with a further chamber 50 , which is typically larger in width, via a throat formation 52 .
  • the further chamber is defined by a base portion and a peripheral wall 54 which is upstanding from the remainder of the housing 16 and which is generally circular in plan.
  • the chamber need not be cylindrical but may take any suitable shape in order to allow a sufficient size of diaphragm to be accommodated.
  • the base and upstanding wall 54 are integrally formed with the remainder of the housing 16 .
  • the chamber 50 is sealed from the outside of the device by a diaphragm 56 (omitted from FIG. 4 ), which is attached about the peripheral face of the wall 54 .
  • the diaphragm comprises a deformable material, such as a polymer, so as to allow movement thereof in response to pressure changes between the interior of the chamber 54 and the exterior of the device.
  • the diaphragm is typically shaped according to the shape of the chamber 50 .
  • the diaphragm is typically offset from the longitudinal axis of the device and/or needle.
  • the diaphragm may be actuable in a direction which is substantially perpendicular to such an axis.
  • the diaphragm and chamber may be greater in width than the remainder of the device.
  • the diaphragm 56 is sandwiched between opposing discs 58 which provide further rigidity to the diaphragm assembly. Protruding from the outer disc 58 towards the needle 18 , there is provided an engagement formation in the form of a pin 60 .
  • the pin 60 is integrally formed with the outer disc 58 and extends through the diaphragm 56 and inner disc towards the chamber 32 .
  • a guide formation is provided within the throat 52 , through which the pin 60 extends.
  • chambers 32 and 50 are formed within the housing as separate chambers, connected by throat 52 , it will be appreciated that those chambers are maintained at a substantially uniform pressure and accordingly those chambers may be combined in an alternative embodiment.
  • the pin 60 engages with the engagement formation 48 of the needle 18 and prevents retraction of the needle by the spring 44 .
  • the device is in a primed condition, ready for insertion into a fluid vessel.
  • the needle tip 18 A protrudes beyond the free end of tube 20 in the manner described above.
  • the pressure within chambers 32 and 50 are equal to the exterior pressure since the chambers communicate with the outside of the device via the needle bore and opening 46 therein. Accordingly the diaphragm is in an at rest condition since the pressure inside and outside the device is equalised.
  • the tip of the needle 18 A and associated cannula 20 is inserted into the body of a patient.
  • the pressure inside the device does not substantially change since little or no fluid enters the needle 18 .
  • the needle enters a fluid vessel in the body, by piercing the vessel wall, the interior chambers 32 and 50 are exposed to the fluid pressure within the vessel.
  • the passage of fluid through fluid vessels requires a fluid pressure differential to exist. Accordingly, upon the entry of the needle tip 18 A into the fluid vessel, a pressure gradient is established between the chambers 32 , 50 and the vessel interior.
  • the pressure in the vessel is typically greater than ambient pressure (i.e. the pressure within the device 12 ). Accordingly fluid will tend to flow into the chambers 32 , 50 and thereby actuate the diaphragm by inflation.
  • the actuation of the diaphragm away from the needle 18 causes the pin 60 to move radially away from the needle axis and thereby disengage the engagement formation 48 .
  • the needle moves axially rearward under the biasing force of the spring 44 on the body 42 until the engagement formation 48 abuts against chamber wall 36 .
  • the needle is retracted relative to sleeve 14 by a predetermined distance (i.e. the distance between the engagement formation 48 and the wall 36 in FIG. 3 ), so as to achieve the condition shown in FIG. 5 .
  • the increase in pressure in the chambers 32 , 50 may be achieved by the flow of fluid from the vessel into the chambers and/or compression of any existing fluid (e.g. air) which may already be present in the chambers. Also the required distance of travel of the pin is relatively small. Accordingly the device is particularly sensitive and requires only a minimal fluid flow for actuation.
  • any existing fluid e.g. air
  • FIG. 5 represents the deployed condition in which the needle end 18 A is contained within the tube 20 and the body 42 protrudes rearwardly beyond the end of the housing 16 .
  • the diaphragm is maintained in its actuated condition.
  • the body 42 in this condition also advantageously provides a visual indication to a user that the needle has been retracted.
  • the body 42 may be coloured or otherwise marked such that it is clearly visible once it protrudes beyond the housing 16 .
  • the body 42 may not protrude beyond the end of the housing 16 such that the actuation of the device cannot be inadvertently hindered by an operator.
  • the retraction of the needle 18 as described above leaves the tube 18 , in this embodiment, the cannula, correctly located in the fluid vessel.
  • the actuation pressure and spring force involved are sufficiently small that there is minimal disturbance to an operator holding the device 12 . It is also advantageous that the needle is at the same time made temporarily safe, such that it is no longer exposed and cannot accidentally puncture the fluid vessel further.
  • the device 12 is removed from the sleeve 14 completely.
  • the sleeve arrangement 14 can be secured in place against a patient's skin in a conventional manner, such that the cannula remains in place against the patient's skin for further use, such as the administration of fluid to, or else removal of fluid from, the vessel.
  • the sleeve is typically secured after removal of the device 12 but may be secured whilst the device remains assembled therewith if necessary.
  • the embodiment above utilises a disc-shaped diaphragm to effect movement of the release pin when the fluid pressure reaches a certain threshold.
  • the rigid disc components above and below the diaphragm ensure that there is uniform inflation of the diaphragm, and hence a predictable effect on the release pin.
  • Sensitivity of the device to fluid pressure differentials is important to correct operation, and the desired sensitivity is achieved by tailoring the enlarged area of the diaphragm such that it can actuate the mechanism under relatively low pressures, whilst avoiding unwanted actuation of the device when not in use.
  • a stack of diaphragms could be used to increase sensitivity in addition to, or instead of, the enlarged area diaphragm shown in FIGS. 1-5 . This may help reduce the overall size of the device.
  • the underside of the needle tip 18 A (in the orientation shown in FIG. 3 ) may be provided with a small opening such that fluid can escape the needle up until the point at which the whole of the needle opening is located in the vessel.
  • This secondary opening in the wall of the main end opening of the puncture member can prevent early actuation of the device as the puncture member enters the vessel. It is important that the end of the cannula has entered the vessel when the fluid pressure increases within the needle, and hence the needle retracts, in order that the cannula is successfully inserted into the vein.
  • the secondary opening in the wall of the needle may be provided immediately adjacent to the cannula end.
  • FIGS. 6-8 there is shown a further embodiment of the invention, which allows for actuation of the device 12 when the puncture member 18 is inserted into a fluid vessel of lower pressure than that in the chambers 32 , 50 within the device.
  • the construction of device 12 A of FIGS. 6-8 is the same as the device of FIGS. 1-5 described above save that the engagement pin 60 is provided with a head formation 62 as shown in FIGS. 6-8 .
  • the head formation 62 has a pair of adjoining apertures 64 , 66 therein.
  • the first aperture 46 has a diameter which is slightly larger than the diameter of the needle 18 but less than that of the engagement formation 48 .
  • the second aperture 66 adjoins the first aperture 64 and has a diameter which is greater than that of the first aperture and the engagement formation 48 .
  • the first aperture 64 is located furthest from the disc 58 (i.e. towards the outer end of the head formation 62 ), whilst the second aperture 66 is located between the first aperture and the disc (i.e. proximate the pin shaft 60 ).
  • the head formation 62 engages the engagement formation 48 of the pin 18 against the biasing force of the spring 44 in a manner similar to that of FIG. 3 .
  • the diaphragm will experience a negative pressure differential, thereby causing actuation of the diaphragm 56 and disc 58 towards the needle axis as shown in FIG. 8 .
  • the changing of the engagement member 60 can allow for the device to operate under positive or negative pressure differentials.
  • This allows application of the present invention to a wider variety of anatomical vessels, including cavities having a fluid pressure which is typically below atmospheric pressure.
  • FIG. 9 there is shown two further embodiments of an assembly according to the present invention, which comprise the device 12 or 12 A of either the first or second embodiment described above.
  • the embodiment of FIGS. 9-11 is provided with a cover, which is formed of a rigid material, such as the plastic used to form the housing 16 .
  • the cover is shaped to be attached about the peripheral wall 54 of the device such that it covers the diaphragm 56 and disc 58 .
  • the cover acts as a lid or cap and is shaped to form an internal space between the diaphragm 56 , including disc 58 and the cover so as to allow movement of the diaphragm in use.
  • the cover prevents access to the diaphragm which may cause unwanted or accidental actuation of the diaphragm 56 prior to the intended use of the device.
  • the cover will typically have an air inlet to ensure that the outer face of the diaphragm is exposed to ambient pressure.
  • the size of this air inlet will affect the response of the diaphragm to changes in the needle fluid pressure, and hence the air inlet may be variable in size to enable adjustment of sensitivity, although it is generally preferred to avoid choking of any flow to, or from, the diaphragm through the cover to achieve a short time delay in the actuation of the device.
  • FIG. 9B One embodiment of such an adjustable cover is shown in FIG. 9B , for which the cover comprises first and second cover members 67 A and 67 B.
  • the cover member 67 B is seated over the diaphragm and associated chamber of the device.
  • the cover member 67 A is of slightly larger size than cover member 67 B such that it can be located over the cover member 67 B.
  • Both cover members have an aperture therein 69 such that the degree of overlap between the apertures of the cover members 67 A and 67 B determines the size of the window or air inlet.
  • the cover 67 A can thus be rotated to adjust the aperture size.
  • the apertures 69 in the cover members are preferably elongate in form and circumferentially aligned to facilitate easy and accurate adjustment thereof.
  • the cover 66 in the embodiment of FIGS. 9A , 10 and 11 also includes means for adjusting the resistance of the diaphragm to motion by way of biasing member 68 , in the form of a spring.
  • the spring may resist motion under the compression, or extension, of the spring such that, in order to actuate the device, the pressure differential must be sufficient to overcome the resilience of the spring.
  • the spring may also serve to dampen the motion of the diaphragm and ensure a smooth operation of the device.
  • the spring 68 is mounted on an adjustable shank 70 which is received in a corresponding port in the cover 66 .
  • the resilience offered by the spring 68 can be adjusted so as to allow adjustment of the threshold pressure at which the device is actuated between the first and second conditions.
  • the shank 70 and cover aperture are correspondingly threaded.
  • the shank is provided with a thumb screw or knob formation 72 or similar manual adjustment formation such that the degree of compression or extension of the spring 68 can be easily adjusted by hand.
  • One or more indicia may be provided on the cover to show pre-set threshold condition such that an operator can adjust the formation 72 by a set number of turns or fractions of a turn to achieve the desired threshold setting.
  • FIGS. 9A-11 and FIG. 9B may be combined.
  • FIGS. 12-14 there is shown a further embodiment 12 B of the invention which is the same as that of any of FIGS. 1-8 described above, save that the modified device housing 16 B no longer has the chamber 50 , nor the diaphragm 56 or associated discs 58 .
  • the chamber 32 B has been modified to house a different type of diaphragm, in the form of balloon 74 , which may be considered to provide a longitudinal or concave type diaphragm.
  • the balloon 74 may be formed of a material similar to that used for inflation of stent balloon devices as is known in the field of medical apparatus.
  • the balloon is provided with one or more rigid ribs or rods 76 , which support the engagement formation 60 B, and which are arranged substantially parallel with the longitudinal axis of the needle 18 .
  • the ribs may accordingly be considered to be longitudinal in design.
  • the device housing 16 B has a number of apertures 75 therein.
  • the device also comprises a cover in the form of collar, or partial-collar, member 77 with corresponding apertures therein.
  • the position of collar 77 on housing 16 B is adjustable so as to vary the size of the opening to allow fluid communication with the exterior of the balloon 74 such that the balloon can freely inflate and deflate in a manner similar to that described in relation to FIG. 9 above.
  • the collar 77 is moveable in an axial direction in this embodiment but alternative actuation of the cover is feasible dependent on the shape and orientation of the apertures.
  • FIGS. 12-14 operates in a manner similar to that of FIG. 3-5 or 6 - 8 described above such that the pressure differential caused by insertion of the needle into a fluid vessel causes inflation or collapse of the balloon 74 so as to release the engagement formation 48 and thereby allow retraction of the needle 18 into the sleeve.
  • inflatable, or pressure sensitive, actuation devices will be apparent to the skilled person as alternatives to the embodiments described above and may be substituted for the actuation mechanisms described above provided the required pressure sensitivity characteristics can be achieved.
  • Such embodiments may, for example comprise a bellows configuration or a low-friction piston arrangement.
  • FIGS. 15-17 an alternative embodiment 100 is shown, which allows for electronic control of the actuation of the device instead of the purely mechanical sensing and actuation means proposed in the above-described embodiments.
  • FIGS. 15-17 The embodiment 100 of FIGS. 15-17 is similar in construction and operation to the embodiments described above, save for the following differences.
  • the housing 116 has been modified to provide a single internal chamber 132 , in which is mounted an electronic pressure sensor 101 .
  • a processor is provided (not shown) to compare the pressure sensed by sensor 101 to a preset threshold pressure and to control operation of an actuator when the sensed pressure meets or exceeds the threshold value.
  • the processor may take the form of a simple comparator or else a more complicated programmable chip dependent on the level of sophistication required for the intended operation.
  • the actuator in such an embodiment may comprise an electric or electronic actuator such as, for example, a solenoid 103 , which is arranged to displace engagement member 160 in a manner similar to that described above.
  • a power source such a batter will typically also be provided to power the actuation mechanism.
  • the actuator may displace the needle directly, rather than disengaging a latching means for the needle.
  • a solenoid or other powered actuator will typically be sufficient to drive the retraction of the needle itself in a reliable manner without the need to bias the needle to a retracted condition in advance.
  • the threshold pressure may be different for different patients. However, it is likely that the device will have a standard threshold, although possibly with a setting for low pressure patients (such, as for example, for elderly patients or those suffering blood loss).
  • the fluid pressure may also be higher than normal vein pressure, due to the presence of a tourniquet, and the threshold pressure may be adjusted or preset accordingly.
  • a value of between 15-25 mm Hg and, typically around the value of 20 mm Hg, hydrostatic pressure is proposed as being a normal threshold.
  • FIGS. 18A and 18B there is shown the device 12 of FIGS. 1-5 comprising a safety feature to allow the needle 18 to be made safe after use.
  • the device housing 16 is formed of two parts 16 A and 16 B.
  • the needle 18 is mounted in part 16 B.
  • the two housing parts 16 A and 16 B are firmly held together during use of the device but are detachable. This may be achieved by an attachment arrangement similar to that described above between the device 12 and sleeve arrangement 14 and may comprise a frictional engagement, such as a push-fit engagement, between correspondingly shaped and/or closely fitting formations. Other conventional engagement arrangements, such as a twist-fitting or locking engagement, may be used.
  • the housing part 16 B in which the needle is mounted, can be pulled apart from housing part 16 A until the end 18 A of the needle is located within the housing part 16 A.
  • a simple mechanism such as a spring loaded plate, can be used to limit the available distance of separation of the housing parts 16 A and 16 B and/or to lock the needle in its made-safe condition within housing portion 16 A.
  • the needle 18 may comprise a sheath or tube 200 which is concentric therewith and extends in the same axis as the needle.
  • the tube 200 is blunt at its free end and may be formed of a suitable plastic or other material.
  • the tube is mounted at its fixed end 202 within the device 12 .
  • the tube 200 is fixedly attached to a rigid portion of the device housing 16 , such as an internal wall thereof (e.g. wall 34 or 36 ) and is not actuable thereto.
  • the tube is maintained within the sleeve 20 .
  • the needle end 18 A protrudes beyond the free end 204 of the tube.
  • the free end 204 of the tube is also behind the free end 24 of the sleeve 20 such that it does not interfere with the operation of the device as described above.
  • the needle is actuated relative to the fixed tube such that it is withdrawn beyond the free end 204 of the tube.
  • the needle end 18 A remains within the tube 200 , thereby avoiding accidental injury which may be caused by the exposed needle.
  • any of the embodiments of the invention described above can be provided with an anti-stab, or made-safe, feature.
  • the different medical uses for which the present invention may be applicable comprise, for example, intravenous cannulation, aspiration/drainage of fluids within body cavities (e.g. pleural effusions, ascites), and/or laporoscopy trochar.
  • the cannula may also be substituted for an alternative sleeve, such as a metal sleeve for use as a two-part needle arrangement.
  • the invention may be applicable to wider engineering use where a conduit is required to be placed in communication with an existing fluid vessel by first puncturing the vessel.
  • the chamber within the housing may comprise a transparent material portion in the form of a window or the like so as to provide in use an indication to the operator that a fluid has entered the chamber.
  • a visual indication of fluid entering the chamber provides a beneficial second means for checking correct operation of the device. Accordingly an operator can visually check correct deployment of the device using both the projection, to determine that the device has actuated, and also the window, to determine that fluid communication between the vessel and the chamber has been achieved.
  • the visual confirmation of one indication in the absence of the other may infer incorrect or incomplete operation of the device such that an operator can attempt to reposition the device, or undertake other steps to ensure correct operation, prior to removing the puncture member.
  • the operator may manually retract the puncture member by withdrawing it from the sleeve so as to complete the operation.
  • the device may comprise an additional or alternative alerting means such as an electronic system to sense retraction of the needle and alert the operator by way of a visual or audible indicator.
  • an additional or alternative alerting means such as an electronic system to sense retraction of the needle and alert the operator by way of a visual or audible indicator.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Surgical Instruments (AREA)
US14/003,745 2011-03-09 2012-03-09 Fluid Vessel Communication Device Abandoned US20130338577A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1104016.9 2011-03-09
GB1104016.9A GB2488810A (en) 2011-03-09 2011-03-09 Fluid vessel communication device
PCT/GB2012/050530 WO2012120311A1 (en) 2011-03-09 2012-03-09 Fluid vessel communication device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2012/050530 A-371-Of-International WO2012120311A1 (en) 2011-03-09 2012-03-09 Fluid vessel communication device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/802,114 Continuation US11253293B2 (en) 2011-03-09 2017-11-02 Fluid vessel communication device

Publications (1)

Publication Number Publication Date
US20130338577A1 true US20130338577A1 (en) 2013-12-19

Family

ID=43923454

Family Applications (2)

Application Number Title Priority Date Filing Date
US14/003,745 Abandoned US20130338577A1 (en) 2011-03-09 2012-03-09 Fluid Vessel Communication Device
US15/802,114 Active US11253293B2 (en) 2011-03-09 2017-11-02 Fluid vessel communication device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/802,114 Active US11253293B2 (en) 2011-03-09 2017-11-02 Fluid vessel communication device

Country Status (7)

Country Link
US (2) US20130338577A1 (ja)
EP (1) EP2683428B1 (ja)
JP (1) JP6232537B2 (ja)
CN (1) CN103619386B (ja)
ES (1) ES2804261T3 (ja)
GB (1) GB2488810A (ja)
WO (1) WO2012120311A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016081899A1 (en) * 2014-11-21 2016-05-26 Flatmed Llc Methods and devices for safely positioning a needle syringe in a body cavity
WO2018204668A1 (en) * 2017-05-03 2018-11-08 Rockport Medical Technologies Llc Devices and methods for sensor-enhanced needle placement
CN108785829A (zh) * 2017-05-04 2018-11-13 贝克顿·迪金森公司 静脉内导管系统
US20190223903A1 (en) * 2016-06-10 2019-07-25 Fresenius Kabi Deutschland Gmbh Cannulation device
US20210338944A1 (en) * 2018-10-19 2021-11-04 Indomed Limited A medical device
US11253293B2 (en) 2011-03-09 2022-02-22 Olberon Limited Fluid vessel communication device
CN117414182A (zh) * 2022-11-23 2024-01-19 杭州康基医疗器械有限公司 一种具有卡线装置的球囊穿刺器

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104000639B (zh) * 2014-05-26 2016-07-06 中国人民解放军第二军医大学 穿刺头可调节的神经阻滞穿刺导管针
CN105664302B (zh) * 2014-11-21 2019-02-15 医盟科技股份有限公司 注射器定位装置
ITUB20160798A1 (it) * 2016-02-16 2017-08-16 Fabio Nicola Arrizza Dispositivo di rilevazione diretta della pressione intravascolare
NL2021769B1 (en) 2018-10-05 2020-05-12 Academisch Ziekenhuis Leiden Fluid vessel insertion device with automatic needle retraction
CN110368041A (zh) * 2019-07-15 2019-10-25 重庆市合川区人民医院 一种普外科临床取样装置
CN115551438A (zh) * 2020-05-21 2022-12-30 瑞德医疗机器股份有限公司 手术器具退避机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129884A (en) * 1990-01-16 1992-07-14 Dysarz Edward D Trap in barrel one handed retracted intervenous catheter device
US6626868B1 (en) * 1998-10-06 2003-09-30 Dean B. Prestidge Needle apparatus
US20090209912A1 (en) * 2008-01-14 2009-08-20 I-V Access Technology, Inc. Apparatus for peripheral vascular access

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198666A (en) 1936-09-30 1940-04-30 Lakeland Foundation Syringe
US2457464A (en) 1946-11-08 1948-12-28 Joseph Grose Surgical instrument
US5104382A (en) * 1991-01-15 1992-04-14 Ethicon, Inc. Trocar
US5360405A (en) * 1991-11-27 1994-11-01 Inbae Yoon Automatic retractable safety penetrating instrument
US5312361A (en) * 1991-09-13 1994-05-17 Zadini Filiberto P Automatic cannulation device
US5158552A (en) * 1991-11-04 1992-10-27 American Cyanamid Company Safety trocar instrument having a retractable trocar actuated by relief of pressure on the trocar point
US5207647A (en) * 1991-11-05 1993-05-04 Phelps David Y Needle device
US5527290A (en) * 1992-08-10 1996-06-18 Zadini; Filiberto Semi-automatic cannulation device or manually triggered self-propelled catheter cannulation device
US5454791A (en) * 1993-09-07 1995-10-03 United States Surgical Corporation Trocar with tissue penetration pressure indicator
JP3259267B2 (ja) * 1993-12-28 2002-02-25 ニプロ株式会社 薬液注入器具
US5573510A (en) 1994-02-28 1996-11-12 Isaacson; Dennis R. Safety intravenous catheter assembly with automatically retractable needle
DE19519763C2 (de) * 1995-05-30 1999-08-05 Pari Gmbh Inhalationsgerätekompressor mit verbessertem Membransatz
US5733265A (en) 1996-09-25 1998-03-31 Becton Dickinson And Company Shielded needle assembly
US5902273A (en) * 1997-10-15 1999-05-11 Yang; Ian Y. Pressurizable epidural space identification syringe
US6669669B2 (en) * 2001-10-12 2003-12-30 Insulet Corporation Laminated patient infusion device
US6773417B2 (en) * 2001-07-06 2004-08-10 Ispg, Inc. Epidural space locating device
US20030181861A1 (en) 2002-03-20 2003-09-25 Becton, Dickinson And Company Safety device
CA2422307A1 (en) 2002-03-20 2003-09-20 Stefanie Livanos Blood collection device
TW586947B (en) * 2002-12-02 2004-05-11 Ming-Jeng Shiu Safety device for injection and blood-drawing
US7175608B2 (en) 2003-03-20 2007-02-13 Maan Hasan Device for the identification of the epidural space
US20060173480A1 (en) * 2005-01-31 2006-08-03 Yi Zhang Safety penetrating method and apparatus into body cavities, organs, or potential spaces
US7867173B2 (en) 2005-08-05 2011-01-11 Devicor Medical Products, Inc. Biopsy device with replaceable probe and incorporating vibration insertion assist and static vacuum source sample stacking retrieval
GB2436526B (en) 2006-03-29 2010-01-27 Arash Bakhtyari-Nejad-Esfahani Syringe
JP4956219B2 (ja) * 2007-02-19 2012-06-20 株式会社根本杏林堂 薬液注入用具および薬液注入装置
WO2009021170A1 (en) * 2007-08-09 2009-02-12 Medco International, Llc L-tube having vent filter
CN201179084Y (zh) 2008-02-25 2009-01-14 瑞奇外科器械(北京)有限公司 外科直线吻合器用手动自动定位针装置
JP4806818B2 (ja) * 2008-11-17 2011-11-02 クリエートメディック株式会社 トロカール
GB2487899A (en) 2011-02-01 2012-08-15 Olberon Ltd Needle holder with grip means
GB2488810A (en) 2011-03-09 2012-09-12 Olberon Ltd Fluid vessel communication device
US9347533B2 (en) 2012-07-25 2016-05-24 Cook Medical Technologies Llc Rotational drive system for a biopsy member
US9624095B2 (en) * 2012-12-28 2017-04-18 Volcano Corporation Capacitive intravascular pressure-sensing devices and associated systems and methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5129884A (en) * 1990-01-16 1992-07-14 Dysarz Edward D Trap in barrel one handed retracted intervenous catheter device
US6626868B1 (en) * 1998-10-06 2003-09-30 Dean B. Prestidge Needle apparatus
US20090209912A1 (en) * 2008-01-14 2009-08-20 I-V Access Technology, Inc. Apparatus for peripheral vascular access

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11253293B2 (en) 2011-03-09 2022-02-22 Olberon Limited Fluid vessel communication device
US10117673B2 (en) * 2014-11-21 2018-11-06 Flatmed Llc Methods and devices for safely positioning a needle syringe in a body cavity
US20160144126A1 (en) * 2014-11-21 2016-05-26 Flatmed Llc Methods and devices for safely positioning a needle syringe in a body cavity
KR20170086600A (ko) * 2014-11-21 2017-07-26 플랫메드 엘엘씨 체강에 주사 바늘을 안전하게 위치시키는 방법 및 장치
WO2016081899A1 (en) * 2014-11-21 2016-05-26 Flatmed Llc Methods and devices for safely positioning a needle syringe in a body cavity
RU2696431C2 (ru) * 2014-11-21 2019-08-01 ФЛАТМЕД ЭлЭлСи Устройство для безопасного позиционирования шприца с иглой в полости тела
KR102568344B1 (ko) 2014-11-21 2023-08-18 플랫 메디컬 인크. 체강에 주사 바늘을 안전하게 위치시키는 방법 및 장치
TWI572387B (zh) * 2014-11-21 2017-03-01 羅文甫 注射器定位裝置
US20190223903A1 (en) * 2016-06-10 2019-07-25 Fresenius Kabi Deutschland Gmbh Cannulation device
US10945760B2 (en) * 2016-06-10 2021-03-16 Fresenius Kabi Deutschland Gmbh Cannulation device
WO2018204668A1 (en) * 2017-05-03 2018-11-08 Rockport Medical Technologies Llc Devices and methods for sensor-enhanced needle placement
WO2018204636A3 (en) * 2017-05-04 2018-12-13 Becton, Dickinson And Company Intravenous catheter systems and methods
US11278705B2 (en) 2017-05-04 2022-03-22 Becton, Dickinson And Company Intravenous catheter systems and methods
CN108785829A (zh) * 2017-05-04 2018-11-13 贝克顿·迪金森公司 静脉内导管系统
AU2018261521B2 (en) * 2017-05-04 2023-10-05 Becton, Dickinson And Company Intravenous catheter systems and methods
US20210338944A1 (en) * 2018-10-19 2021-11-04 Indomed Limited A medical device
CN117414182A (zh) * 2022-11-23 2024-01-19 杭州康基医疗器械有限公司 一种具有卡线装置的球囊穿刺器

Also Published As

Publication number Publication date
GB2488810A (en) 2012-09-12
JP6232537B2 (ja) 2017-11-22
EP2683428A1 (en) 2014-01-15
CN103619386A (zh) 2014-03-05
GB201104016D0 (en) 2011-04-20
US11253293B2 (en) 2022-02-22
CN103619386B (zh) 2017-08-25
WO2012120311A1 (en) 2012-09-13
ES2804261T3 (es) 2021-02-05
US20180064465A1 (en) 2018-03-08
EP2683428B1 (en) 2020-04-29
JP2014514016A (ja) 2014-06-19

Similar Documents

Publication Publication Date Title
US11253293B2 (en) Fluid vessel communication device
JP5799134B2 (ja) インディケータを備える安全な採血アセンブリ
US9044583B2 (en) Valve for introducer needle
US5397313A (en) Low friction syringe
US10813579B2 (en) Blood collection device
JP5781515B2 (ja) 採血器具
CN110290745B (zh) 可侦测压力变化的注射器
EP2996740B1 (en) Vacuum pressure regulators for use during blood collection
WO2005110510A3 (en) Porous multiple sample sleeve and blood drawing device for flash detection
WO2005110522A3 (en) Blood drawing device with flash detection
BRPI0714700B1 (pt) Aparelho com septo e protetor de ponta de agulha integrados para uso em uma montagem de cateter, montagem de cateter e método para fabricar uma montagem de cateter
US20170135726A1 (en) Retractable Centesis Needle
US20150209078A1 (en) Veress needle
US4414983A (en) Medico-surgical instruments
GB2083364A (en) Inserting needles into body spaces
US11141570B2 (en) IV catheter with retractable needle and laterally offset biasing element and needle retraction cavity
BR112021013954A2 (pt) Confirmação da colocação do cateter dentro de uma veia
JP2005237638A (ja) 安全留置針
CN219646433U (zh) 一种可视识别压力变化的注射器
CN102038524A (zh) 具有血管进入指示器的血管通入器械
AU2014200804B2 (en) Blood collection device
CA1075116A (en) Syringe assembly
JP2017086651A (ja) 輸液針および針抜け検知システム

Legal Events

Date Code Title Description
AS Assignment

Owner name: OLBERON LIMITED, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AL-HABAIBEH, AMIN H. A., DR.;STEAD, THOMAS DAVID;BAKHTYARI-NEJAD-ESFAHANI, ARASH, DR.;SIGNING DATES FROM 20111003 TO 20111016;REEL/FRAME:031155/0571

Owner name: NOTTINGHAM TRENT UNIVERSITY, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AL-HABAIBEH, AMIN H. A., DR.;STEAD, THOMAS DAVID;BAKHTYARI-NEJAD-ESFAHANI, ARASH, DR.;SIGNING DATES FROM 20111003 TO 20111016;REEL/FRAME:031155/0571

AS Assignment

Owner name: OLBERON MEDICAL INNOVATION SAS, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OLBERON LIMITED;NOTTINGHAM TRENT UNIVERSITY;REEL/FRAME:031176/0969

Effective date: 20120926

AS Assignment

Owner name: OLBERON MEDICAL INNOVATION SAS, FRANCE

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE THE ASSIGNOR PREVIOUSLY RECORDED ON REEL 031176 FRAME 0969. ASSIGNOR(S) HEREBY CONFIRMS THE THE ASSIGNMENT;ASSIGNOR:OLBERON LIMITED;REEL/FRAME:031393/0078

Effective date: 20120926

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION