WO2009047512A4 - Intravenous injection aid - Google Patents

Intravenous injection aid Download PDF

Info

Publication number
WO2009047512A4
WO2009047512A4 PCT/GB2008/003425 GB2008003425W WO2009047512A4 WO 2009047512 A4 WO2009047512 A4 WO 2009047512A4 GB 2008003425 W GB2008003425 W GB 2008003425W WO 2009047512 A4 WO2009047512 A4 WO 2009047512A4
Authority
WO
WIPO (PCT)
Prior art keywords
needle
guide
base frame
arms
guide according
Prior art date
Application number
PCT/GB2008/003425
Other languages
French (fr)
Other versions
WO2009047512A1 (en
Inventor
Kin Fai Kam
Original Assignee
Kin Fai Kam
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 Kin Fai Kam filed Critical Kin Fai Kam
Priority to GB1006039.0A priority Critical patent/GB2467244B/en
Publication of WO2009047512A1 publication Critical patent/WO2009047512A1/en
Publication of WO2009047512A4 publication Critical patent/WO2009047512A4/en

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
    • 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
    • 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
    • A61M2005/1585—Needle inserters
    • 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
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3287—Accessories for bringing the needle into the body; Automatic needle insertion
    • 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
    • A61M5/42—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 having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
    • A61M5/425—Protruding skin to facilitate piercing, e.g. vacuum cylinders, vein immobilising means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • 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
    • A61M5/42—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 having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
    • A61M5/427—Locating point where body is to be pierced, e.g. vein location means using ultrasonic waves, injection site templates

Abstract

An intravenous injection guide (and a method of using such a guide) comprising a supporting base frame (23) and one or more guider arms (22) connected to the base frame (23) whereby the guider arm or arms (22) can be used so as to engage with a protrusion (20) from a transfusion set in such a way that the contour of the guider arm or arms (22) helps guide the trajectory of the transfusion needle (11) into the vein of the patient during the act by a user of attempting veni-puncture access for medicinal infusion or blood sampling. In addition a method of determining the path for an intravenous injection needle.

Claims

38AMENDED CLAIMS received by the International Bureau on 22 April 2009 (22.04.09), claims 1-47 replaced by new claims 1-45
1. An intravenous injection guide comprising a supporting base frame (23) and one or more guider arms (22) connected to the base frame (23) whereby an edge or edges of the guider arm or arms (22) can be used so as to constrain the movement of a protrusion (20) from a transfusion set in such a way that the edge or edges help guide the trajectory of the transfusion needle (11) into the vein of the patient during the act by a user of attempting veni-puncture access for medicinal infusion or blood sampling wherein the edge of each guider arm (22) has a straight contour portion (22a) and a curved contour portion (22b) such that when the transfusion set is used for veni-puncture in conjunction with the injection guide, the edge or edges constrain the movement of the protrusion (20) and sp guide the needle (11) of the transfusion set:
(a) initially on a linear trajectory as a result of the constraint on the movement of the protrusion (20) by the straight portion (22a); and then
(b) on a trajectory through which the gradient of the needle (11) changes as a result of the constraint on the movement of the protrusion (20) by the curved portion (22b).
2. A guide according to claim 1 wherein each guider arm (22) is shaped so that following the guidance of the needle (11) along the linear trajectory and then along the trajectory through which the gradient of the needle changes, the guider arm or arms (22) exert no substantial constraints on the trajectory of the needle (11) during the subsequent phase of the veni-puncture procedure when the needle (11) 39 is inserted further into the patient before it finally comes to rest.
3. A guide according to any previous claim wherein one or more of the guider arms (22) has a hooked end (22d) remote from the end of the guider arm (22) connected to the base frame (23).
4. A guide according to any previous claim wherein the supporting base frame (23) comprises a short side (23a) connecting a pair of long sides (23b).
5. A guide according to claim 4 wherein the short side (23a) is shaped so as to minimise contact with the skin.
6. A guide according to claim 4 or 5 wherein at least one of the connections between the short side (23a) and the long sides (23b) is jointed so that the sides can be rotated relative to each other.
7. A guide according to any previous claim wherein there are two guider arms (22).
8. A guide according to any previous claim wherein connected to the base frame (23) is at least one needle depth limiter (25) comprising a rigid or semi rigid projection so that if during the process of venepuncture an attempt is made to advance the needle beyond a pre-set point, the projection will engage with the protrusion (20) from the transfusion set and provide a degree of resistance to further advancement of the needle (11).
9. A guide according to claim 8 wherein at least one of the depth limjters (25) is adjustable in its position in relation to the base frame (23).
10. A guide according to claim 8 or 9 wherein the depth limiters (25) allow the user of the transfusion set to exert a degree of force so as to achieve a deeper advancement of the needle (11). 40
11. A guide according to any previous claim wherein the base frame (23) has an injection site indicator (26) which marks the point at which the needle (11) is to enter the skin.
12. A guide according to any previous claim wherein the base frame (23) is connected to one or more flexible wings (24) to assist the secure attachment of the guide to the patient.
13. A guide according to claim 12 wherein the underside of the flexible wings (24) is coated in an adhesive material suitable to attach the wings (24) to the skin of the patient,
14. A guide according to any previous claim wherein the base frame (23) is connected to a wrap around hook and loop fastener for securing the base frame (23) to the patient.
15. A guide according to any previous claim wherein the base frame (23) has a protruding structure (28) in contact with the skin and adjacent the point where the needle (11) enters the skin such that when the guide is in use, the protruding structure (28) will press against the skin adjacent the relevant vein and reduce movement of that vein during the veni-puncture process.
16. A guide according to claim 15 wherein the underside of the protruding structure (28) includes a slight cusp or lip (28a).
17. A guide according to claim 15 or 16 wherein the protruding structure (28) can be vibrated by use of an electric motor attached to the base frame (23).
18. A guide according to claims 15 to 17 wherein the guide incorporates a light source to improve vein contrast and such light source is embedded in the protruding side structure (28) such that when in use the light source emits a light beam which is directed generally parallel to the surface of the skin.
19. A guide according to any previous claim wherein one or more guider arms (22) are detachable from the base frame (23).
20. A guide according to any previous claim wherein the angles of one or more guider arms (22) can be adjusted relative to the base frame (23).
21. A guidq according to any previous claim wherein the length of one or more of the guider arms (22) can be adjusted by a telescopic mechanism.
22. A guide according to any previous claim having one or more slider arms (22g) connected to the base frame (23) so that their position can be adjusted relative to the base frame (23), each slider arm (22g) having an edge for engagement with the protrusion (20) comprising a curved portion (22h) and a portion substantially perpendicular to the base frame (221).
23. A guide according to claim 22 wherein the slider arm (22g) slides in relation to the base frame (23) when sufficient force is applied at the substantially perpendicular portion (22i).
24. A guide according to any previous claim wherein the base frame (23) is made wholly or partly out of bendy or malleable material.
25. A guide according to any previous claim wherein the guide is connected to at least one weighty, flexible and moveable string or strap (30) made of a material which does not readily slip across skin.
26. A guide according to any previous claim wherein the guide incorporates an angle indicator positioned to measure the angle of a guider arm (22). 42
27. A guide according to any previous claim where any part of the guide is made from transparent or translucent material.
28. A kit for use in carrying out veni-puncture comprising a guide according to any previous claim and a transfusion set wherein the transfusion set has a protrusion (20) which when in use has its movement constrained by the edge or edges of the guider arm or arms (22) of the guide and the edge or edges of the guider arm or arms (22) help guide the trajectory of the needle (11) during the injection process.
29. A kit according to claim 28 wherein the protrusion (20) is a thin rod or bar.
30. A kit according to claim 28 or 29 wherein near and at the point where the veni-puncture process has been completed, the relative sizes and shapes of the protrusion (20) and the guide are such that the protrusion (20) does not extend beyond the inner surfaces of the base frame (23).
31. A kit according to any of claims 28 to 30 wherein the protrusion (20) and guider arm or arms (22) are made of a material or materials such that the protrusion (20) and guider arm or arms (22) can slide smoothly across each other.
32. A kit according to any of claims 28 to 31 wherein the cross-section of the protrusion (20) is sloped (20a) so as to assist the smooth engagement of the protrusion (20) and the guider arm or arms (22).
33. A kit according to any of the claims 28 to 32 wherein the protrusion (20) has an upturn (20b) at its end or ends remote from the body hub (13) of the transfusion set.
34. A kit according to any of the claims 28 to 33 wherein the transfusion set has a flat extended tail wing-like 43 component (19) which is rigidly connected to the body hub (13) of the transfusion set and the size and shape of the tail wing-like component (19) is such that any user can hold the component (19) and manually control the trajectory of the needle (11) without being hindered by the potential obstacles of the guiding arms (22).
3J5- A kit according to any of the claims 28 to 34 wherein the protrusion (20) is rigidly connected to each side of the body hub (13) of the transfusion set.
36. A kit according to claim 34 wherein the protrusion (20) is rigidly connected to each side of the tail wing-like component (19).
37. A kit according to claim 34 or 36 wherein the tail wing- like component (19) comprises two elements (19a), each being an individual handling wing which is flexible about the body hub (13) but which can be brought together with the other element (19a) to lock relative to the body hub (13) so as to define a single tail wing-like component (19)*
38. A kit according to any of the claims 28 to 37 wherein the transfusion set has a pair of stabilising wings (27) attached to the body hub (13) of the transfusion set.
39. A kit according to any of the claims 28 to 38 wherein the profile of the edge or edges of one or more guider arms is determined such that when the guide is used in conjunction with the transfusion set the IV needle follows the path dictated by the following formula during part of the veni-puncture process, between the point when the needle has just completed the linear entry motion and the point where the positioning of the needle is complete: 44 o <t< tf,
Figure imgf000008_0001
where: r(t) is the distance of the point (the TN-point) where the needle joins the body hub of the transfusion set from the injection site; θ(t) is the angle the needle makes with the skin surface at the localised injection site; θo is the initial angle at which the needle enters the skin surface at the localised injection site; θf is the final angle of the needle relative to the skin surface at the localised injection site;
L is the length of the needle;
10 is the length of the desired depth of penetration of the needle during the initial linear entry of the needle into the vein;
11 is the additional length needle that is inserted following the initial linear entry into the vein;
V0 is the velocity of the TN-point as the needle penetrates the skin and is equivalent I0 divided by to; t represents the time that has elapsed during the venepuncture action, starting when the needle hits the injection site; to is the time at which the needle has passed the upper side of the relevant vein wall and at which time a length I0 Of the needle has penetrated the skin; tf is the time at which the needle comes to rest at its desired position within the vein.
40. A kit as described in claim 39 where θf is about 3°.
41. A kit as described in claim 39 or 40 where I0 is about 3mm and t0 is about 0.3 seconds.
42. A kit as described in any of the claims 39 to 41 where Ii is about 10mm and tf is approximately between 1 and 2 seconds. 45
43. A kit as described in any of the claims 39 to 42 where θo is about 10°.
44. A kit as described in any of the claims 39 to 43 where θo is about 30°.
45. An apparatus for carrying out an intravenous injection comprising a transfusion set held and by a robotically controlled arm wherein the movement of the arm is programmed so that when the transfusion set is used for veni-puncture, the IV needle follows the path dictated by the following formula during part of the veni-puncture process, between the point when the needle has just completed the linear entry motion and the point where the positioning of the needle is complete: o <t< tf,
Figure imgf000009_0001
where: r(t) is the distance of the point (the TN-point) where the needle joins the body hub of the transfusion set from the injection site; θ(t) is the angle the needle makes with the skin surface at the localised injection site; θo is the initial angle at which the needle enters the skin surface at the localised injection site; θf is the final angle of the needie relative to the skin surface at the localised injection site;
L is the length of the needle;
10 is the length of the desired depth of penetration of the needle during the initial linear entry of the needle into the vein;
11 is the additional length needle that is inserted following the initial linear entry into the vein;
Vo is the velocity of the TN-point as the needle penetrates the skin and is equivalent Io divided by t0; 46 t represents the time that has elapsed during the venepuncture action, starting when the needle hits the injection site; to is the time at which the needle has passed the upper side of the relevant vein wall and at which time a length Io of the needle has penetrated the skin; tf is the time at which the needle comes to rest at its desired position within the vein.
PCT/GB2008/003425 2007-10-12 2008-10-09 Intravenous injection aid WO2009047512A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1006039.0A GB2467244B (en) 2007-10-12 2008-10-09 Intravenous injection aid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0719976.3 2007-10-12
GB0719976A GB0719976D0 (en) 2007-10-12 2007-10-12 Intravenous injection aid

Publications (2)

Publication Number Publication Date
WO2009047512A1 WO2009047512A1 (en) 2009-04-16
WO2009047512A4 true WO2009047512A4 (en) 2009-06-11

Family

ID=38788078

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/003425 WO2009047512A1 (en) 2007-10-12 2008-10-09 Intravenous injection aid

Country Status (2)

Country Link
GB (2) GB0719976D0 (en)
WO (1) WO2009047512A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2404632B1 (en) * 2010-07-10 2012-11-21 Roche Diagnostics GmbH Insertion system for needles
DE102013001105A1 (en) * 2013-01-23 2014-07-24 Fresenius Medical Care Deutschland Gmbh Vascular access device for the reproducible introduction of a cannula in a puncture site
CN115501423A (en) * 2022-09-23 2022-12-23 中国人民解放军陆军军医大学第一附属医院 Simple auxiliary device for transfusion port

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332248A (en) * 1980-07-31 1982-06-01 Devitis Thomas N Medical apparatus
US4930525A (en) * 1989-03-28 1990-06-05 Palestrant Aubrey M Method for performing C.T. guided drainage and biopsy procedures
US5167630A (en) * 1991-09-26 1992-12-01 Paul Kamaljit S Blood vessel cannulation device
US6706000B2 (en) * 1997-11-21 2004-03-16 Amira Medical Methods and apparatus for expressing body fluid from an incision
US20040015130A1 (en) * 2002-07-16 2004-01-22 Neumann Calvin Lee Vein retaining device
US20050257795A1 (en) * 2004-05-20 2005-11-24 Yu Hsiu-Chen Method and apparatus for locating superficial veins or specific structures with a LED light source
US20060211987A1 (en) * 2005-03-18 2006-09-21 Williams Arthur M Vein stabilizer devices and methods of using same
US20070232999A1 (en) * 2006-03-30 2007-10-04 James Gerard Perez Artery stabilizer device with a syringe slide

Also Published As

Publication number Publication date
WO2009047512A1 (en) 2009-04-16
GB201006039D0 (en) 2010-05-26
GB2467244B (en) 2012-08-08
GB2467244A (en) 2010-07-28
GB0719976D0 (en) 2007-11-21

Similar Documents

Publication Publication Date Title
CA1158125A (en) Infusion needle attachment
US10806856B2 (en) Insertion device with horizontally moving part
US9682217B2 (en) Vascular access systems and methods of use
US4292970A (en) Apparatus for intravenous catheter starter
US8945011B2 (en) Systems and methods for accessing the lumen of a vessel
US6969372B1 (en) Automatic retraction Huber needle safety enclosure
US20070265571A1 (en) Needle alignment, needle securement and vessel stabilization device
RU2011122551A (en) SYSTEM AND METHOD FOR MECHANICAL CLOSING OF THE RAS
WO2009047512A4 (en) Intravenous injection aid
CN108577055B (en) Slider for slide fastener and slide fastener
US8246578B2 (en) Puncture device
CA2201530A1 (en) A device and device related method for a control of metabolism on a living being
US20180256828A1 (en) Precision steerable and angled medication delivery system
CN208942875U (en) A kind of acupuncture positioning auxiliary device
BE1020202A3 (en) A TOOL FOR INSERTING A NEEDLE INTO A BODY PART, METHODS FOR ORIENTING A NEEDLE TO BE INSERTED INTO A BODY PART AND INSERTING THEREOF AND A FABRIC.
CN206355115U (en) Universal puncture locator
CN209984362U (en) Adjustable fixator for rat experiment
JPH0119966Y2 (en)
EP4309598A2 (en) Integrated subcutaneous sensor and infusion device, system and method
CN220025912U (en) Claw type single needle depth regulation and control module
US20160287836A1 (en) Modified medical syringe with a flow regulator for the administration of local anaesthetic
US20210308383A1 (en) Methods, systems and devices for administering medication
CN209060216U (en) A kind of division of endocrinology&#39;s quick locating injection auxiliary device of insulin
CN211214746U (en) Angle regulator for venous transfusion scalp needle
CN117084782A (en) Microwave ablation needle fixing support

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: 08806562

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase in:

Ref document number: 1006039

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20081009

WWE Wipo information: entry into national phase

Ref document number: 1006039.0

Country of ref document: GB

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08806562

Country of ref document: EP

Kind code of ref document: A1