WO2014063353A1 - Composant canule d'aiguille de ponction d'aiguille à demeure avec manchon de protection de pointe d'aiguille - Google Patents

Composant canule d'aiguille de ponction d'aiguille à demeure avec manchon de protection de pointe d'aiguille Download PDF

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Publication number
WO2014063353A1
WO2014063353A1 PCT/CN2012/083586 CN2012083586W WO2014063353A1 WO 2014063353 A1 WO2014063353 A1 WO 2014063353A1 CN 2012083586 W CN2012083586 W CN 2012083586W WO 2014063353 A1 WO2014063353 A1 WO 2014063353A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
operating handle
puncture needle
puncture
assembly
Prior art date
Application number
PCT/CN2012/083586
Other languages
English (en)
Chinese (zh)
Inventor
张建铭
Original Assignee
Zhang Jianming
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 Zhang Jianming filed Critical Zhang Jianming
Priority to PCT/CN2012/083586 priority Critical patent/WO2014063353A1/fr
Publication of WO2014063353A1 publication Critical patent/WO2014063353A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—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of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle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
    • A61M25/01—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 an apparatus for introducing a medium into a body, and more particularly to a puncture needle tube assembly having a needle tip protective sleeve indwelling needle.
  • FIG. 1 A puncture needle tube assembly with a needle tip protective sleeve in the prior art is shown in Fig. 1.
  • the puncture needle tube 1 and the core chamber are the blood return observation chambers.
  • the needle holder 2, the venting plug 3, the connecting rod 4, the positioning plug 5, and the operating handle 6 are composed.
  • the end of the puncture needle 1 is inserted and fixed from the front end of the blood returning observation chamber 21, and the venting plug is inserted in advance.
  • the front end of the connecting rod 4 is tightly fitted into the rear card slot of the needle holder 2, and a sealing glue is sealed between the connecting rod 4 and the needle seat 2 to prevent blood from oozing out from the gap during use, and after the sealing glue is solidified, the connection is made.
  • This puncture needle assembly has the following deficiencies 1 There are many assembly parts, and the process is cumbersome and inefficient; 2 The blood return observation volume is too small, the length is too short, the volume of blood volume is too small, and some blood causes obvious blood return observation, which is easy to cause the blood return of the capillary to be mistakenly referred to as blood return of the venous blood vessel, thus easily leading to misjudgment of operation.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a puncture needle tube assembly having a needle tip protective sleeve indwelling needle which has fewer assembly parts, is convenient to assemble, has high efficiency, and is less prone to operational misjudgment.
  • the puncture needle tube assembly with the needle tip protective sleeve indwelling needle comprises a puncture needle tube, a needle seat, a venting plug and an operating handle.
  • the blood returning observation chamber is located in the core chamber of the needle seat, and the tail end of the puncture needle tube is inserted and fixed from the front end portion of the blood returning observation chamber.
  • the main point of the composition is that the needle seat extends along the axial direction of the inner cavity of the operating handle and is fixed with the operating handle, and the venting plug is fixed at the tail of the blood returning observation bin.
  • the connecting rod is omitted, and the vacated cavity allows the needle holder to continue axially extending and increases the volume of blood volume and the length of blood transfusion of the blood returning observation chamber. Not only does it reduce assembly parts, but it is also less prone to operational misjudgment.
  • the object of the present invention can also be achieved by the following means.
  • the hub extends to the tail or tail of the operating handle and is secured to the operating handle.
  • the tail is the part near the end. This arrangement allows for maximum or near maximum expansion of the blood volume and blood volume, and also facilitates the implementation of the needle holder and the operating handle.
  • the needle tube assembly and even some fine dimensions of the indwelling needle, such as the distance (the distance from the tip of the needle tip to the foremost end of the catheter), etc., are completely dependent on the injection molding precision of each part, and cannot be adjusted during the assembly process, so that the assembly of parts is assembled.
  • the accumulated error generated cannot be controlled, and problems such as assembly defective products and waste products are easily generated.
  • the present invention replaces the prior art positioning plug with an adhesive on the basis of the above improvements, so that the relative position of the needle seat and the operating handle can be adjusted during assembly to obtain an accurate distance. This is an unexpected effect of the present invention.
  • the tail end of the operating handle is provided with a conical recess through which the rearwardly extending needle seat passes to be flush with the end face of the operating handle, and the adhesive is injected into the recess.
  • the end of the venting plug is open to the space.
  • the outer peripheral surface of the needle seat is a stepped member which is large in front and small, and the outer peripheral surface of the step of the tail section is a non-rotating surface, and the shape of the socket portion in the inner cavity of the operating handle corresponds to the outer peripheral surface of the needle seat. match.
  • the needle hub is easily inserted from the front end of the operating handle, and the positioning of the needle seat in the circumferential direction of the operating handle is realized by the non-rotating surface.
  • This non-rotating surface can be a square.
  • the inner handle of the operating handle can accommodate the puncture needle tube as a needle tip protective sleeve after the needle seat is retracted. Further, the operating handle can be composed of a telescopic protective sleeve.
  • the present invention has the following advantages over the prior art: the connecting rod is omitted, and the vacated cavity allows the needle holder to continue axially extending and increases the blood volume and blood volume of the blood returning observation chamber. Not only does it reduce assembly parts, it is easy to assemble, and it is not easy to cause operational misjudgment.
  • the prior art positioning plug is replaced with an adhesive so that the relative position of the needle seat and the operating handle can be adjusted during assembly to obtain an accurate distance.
  • FIG. 1 is a schematic perspective view showing the structure of a puncture needle tube assembly having a needle tip protective sleeve in the prior art.
  • FIG. 2 is a schematic perspective view showing the structure of a puncture needle tube assembly having a needle tip protective sleeve indwelling needle according to the present invention.
  • FIG. 3 is a schematic view showing the structure of a puncture needle tube assembly with a needle tip protective sleeve in the puncture state according to the present invention.
  • FIG. 4 is a schematic view showing the structure of the puncture needle tube assembly with the needle tip protective sleeve in the withdrawn state according to the present invention.
  • Fig. 5 is a schematic perspective view showing the appearance of a needle hub in an embodiment of the present invention.
  • Figure 6 is a schematic perspective cross-sectional view showing the structure of the needle hub in the embodiment of the present invention.
  • the puncture needle tube assembly with the needle tip protective sleeve indwelling needle including the puncture needle tube 1 and the needle seat 2 , the venting plug 3 and the operating handle 6 , the blood returning observation chamber 21 is located in the needle core 2 core cavity, the tail end of the puncture needle tube 1 is inserted and fixed from the front end portion of the blood return observation chamber 21, the venting plug 3
  • the plug is fixed at the tail of the blood return observation chamber 21 and its tail end is open to the space, and the tail end of the operating handle 6 is provided with a conical recess 61 through which the needle holder 2 extending backward in the axial direction of the inner cavity of the operating handle 6 passes.
  • the operating handle 6 is composed of a telescopic protective cover, the above and the needle seat 2 Directly connected to the outer cylinder 62 in the telescoping sleeve, the tapered recess 61 is also located at its trailing end.
  • the needle seat 2 The outer peripheral surface is a stepped member which is large and small, and the outer peripheral surface of the step of the tail section is a square shape, and the shape of the socket portion of the inner handle of the operating handle 6 and the needle seat 2 matches the outer peripheral surface of the needle seat 2 .

Abstract

La présente invention concerne un composant canule d'aiguille de ponction d'une aiguille à demeure avec un manchon de protection de pointe d'aiguille, ledit composant comprenant une canule d'aiguille de ponction (1), un siège d'aiguille (2), un bouchon de ventilation (3) et une poignée d'actionnement (6). Un compartiment d'observation du retour du sang (21) se trouve dans une cavité centrale du siège d'aiguille (2). Une extrémité de queue de la canule d'aiguille de ponction (1) est insérée dans une partie d'extrémité avant du compartiment d'observation de retour du sang (21) et fixement raccordée. Le siège d'aiguille (2) s'étend le long d'une direction axiale de la cavité intérieure de la poignée d'actionnement (6) et est fixement raccordé à la poignée d'actionnement (6). Le bouchon de ventilation (3) est fixement bloqué dans l'extrémité arrière du compartiment d'observation de retour de sang (21). Le composant canule d'aiguille de ponction permet que le siège d'aiguille (2) continue de s'étendre dans la direction axiale et augmente un volume de réception de sang et une longueur de réception de sang du compartiment d'observation de retour du sang (21). Non seulement le nombre de raccord d'assemblage est réduit mais aussi l'assemblage est adapté et l'occurrence d'une erreur de jugement de fonctionnement n'est pas facile. Un bouchon de positionnement dans l'art antérieur est remplacé par un dispositif de liaison, de telle sorte que la position du siège d'aiguille (2) relativement à la poignée de fonctionnement (6) peut être ajustée dans un processus d'assemblage pour obtenir une distance précise.
PCT/CN2012/083586 2012-10-26 2012-10-26 Composant canule d'aiguille de ponction d'aiguille à demeure avec manchon de protection de pointe d'aiguille WO2014063353A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/083586 WO2014063353A1 (fr) 2012-10-26 2012-10-26 Composant canule d'aiguille de ponction d'aiguille à demeure avec manchon de protection de pointe d'aiguille

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/083586 WO2014063353A1 (fr) 2012-10-26 2012-10-26 Composant canule d'aiguille de ponction d'aiguille à demeure avec manchon de protection de pointe d'aiguille

Publications (1)

Publication Number Publication Date
WO2014063353A1 true WO2014063353A1 (fr) 2014-05-01

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PCT/CN2012/083586 WO2014063353A1 (fr) 2012-10-26 2012-10-26 Composant canule d'aiguille de ponction d'aiguille à demeure avec manchon de protection de pointe d'aiguille

Country Status (1)

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WO (1) WO2014063353A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109248354A (zh) * 2018-09-25 2019-01-22 王祖扬 一种防针刺伤安全留置针
CN110327511A (zh) * 2019-05-30 2019-10-15 刘浩浩 一种留置针
CN113133815A (zh) * 2021-04-22 2021-07-20 施爱德（厦门）医疗器材有限公司 穿刺器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695474A (en) * 1995-09-18 1997-12-09 Becton Dickinson And Company Needle shield with collapsible cover
US5702367A (en) * 1993-11-15 1997-12-30 Becton Dickinson And Company Retractable-needle cannula insertion set with refinements to better control leakage, retraction speed, and reuse
CN1319023A (zh) * 1998-07-31 2001-10-24 Mdc投资控股公司 针头可退回的医用装置
US20070191777A1 (en) * 2006-02-16 2007-08-16 Medex, Inc. Enclosed Needle Device with Fluid Path Access
CN101658700A (zh) * 2009-07-30 2010-03-03 陈永曦 具有保护套的开放式留置针
CN102526864A (zh) * 2012-01-10 2012-07-04 陈永曦 留置针针座安装方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5702367A (en) * 1993-11-15 1997-12-30 Becton Dickinson And Company Retractable-needle cannula insertion set with refinements to better control leakage, retraction speed, and reuse
US5695474A (en) * 1995-09-18 1997-12-09 Becton Dickinson And Company Needle shield with collapsible cover
CN1319023A (zh) * 1998-07-31 2001-10-24 Mdc投资控股公司 针头可退回的医用装置
US20070191777A1 (en) * 2006-02-16 2007-08-16 Medex, Inc. Enclosed Needle Device with Fluid Path Access
CN101658700A (zh) * 2009-07-30 2010-03-03 陈永曦 具有保护套的开放式留置针
CN102526864A (zh) * 2012-01-10 2012-07-04 陈永曦 留置针针座安装方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109248354A (zh) * 2018-09-25 2019-01-22 王祖扬 一种防针刺伤安全留置针
CN109248354B (zh) * 2018-09-25 2023-12-15 重庆医药集团威逊医疗科技有限公司 一种防针刺伤安全留置针
CN110327511A (zh) * 2019-05-30 2019-10-15 刘浩浩 一种留置针
CN113133815A (zh) * 2021-04-22 2021-07-20 施爱德（厦门）医疗器材有限公司 穿刺器

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