CN108210022B - Safe type chest needle - Google Patents
Safe type chest needle Download PDFInfo
- Publication number
- CN108210022B CN108210022B CN201611187330.1A CN201611187330A CN108210022B CN 108210022 B CN108210022 B CN 108210022B CN 201611187330 A CN201611187330 A CN 201611187330A CN 108210022 B CN108210022 B CN 108210022B
- Authority
- CN
- China
- Prior art keywords
- needle
- needle tube
- tube
- handle
- groove
- 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.)
- Active
Links
- 238000005452 bending Methods 0.000 claims abstract description 9
- 241000446313 Lamella Species 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 210000000038 chest Anatomy 0.000 description 23
- 238000000034 method Methods 0.000 description 2
- 206010035588 Pleural adhesion Diseases 0.000 description 1
- 208000002151 Pleural effusion Diseases 0.000 description 1
- 208000033809 Suppuration Diseases 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000004199 lung function Effects 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
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
- A61B17/3496—Protecting sleeves or inner probes; Retractable tips
-
- 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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
Abstract
The invention discloses a safe chest needle which comprises a needle handle, a needle tube, a fixed ring, a folding sheath, a tee joint, a needleless dosing connector, a locking clamp, an internal conical threaded connector and a needle tip sheath, wherein the needle tube comprises a transverse part and a vertical part, the top end of the vertical part of the needle tube is connected with one end of the transverse part to form a right-angle bending structure, and the top end of the right-angle bending part of the needle tube is provided with a fixed ring buckle; the needle handle is arranged at the vertical part of the needle tube, and the position of the needle handle is opposite to the position of the transverse part of the needle tube; the fixed ring is rotatably clamped on the fixed ring clamping buckle; the folding sheath is rotatably disposed on the stationary ring. The safe chest needle can effectively protect the needle point after the safe chest needle is used, and can effectively avoid the damage of medical staff or related staff possibly contacting the needle point caused by the exposure of the needle point.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a safe chest needle.
Background
The thoracentesis needle is mainly used in the following fields:
(1) Judging the property of pleural effusion;
(2) Relieving lung compression symptoms caused by massive effusion or qi accumulation;
(3) Drainage of pus for treating the abscess;
(4) Avoid pleural adhesion thickening, influence lung function;
(5) The medicine is injected into the chest cavity.
The existing thoracocentesis needle product does not adopt the protection of the needle tip, and in the actual use process, the thoracocentesis needle tube is thicker, and meanwhile, the cutting edge is sharper, so that the thoracocentesis needle product is easy to scratch or stab medical staff and medical waste disposal staff after the use is finished, and a certain risk exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a safe chest needle which can effectively protect a needle point part after the use is completed and can effectively avoid the damage of the exposed needle point to medical staff or related staff possibly contacting the needle point.
The technical scheme for achieving the purpose is as follows: a safe chest needle comprises a needle handle, a needle tube, a fixed ring, a folding sheath, a tee joint, a needleless dosing joint, a locking clamp, an inner conical threaded joint and a needle tip sheath, wherein:
the needle tube comprises a transverse portion and a vertical portion, the top end of the vertical portion of the needle tube is connected with one end of the transverse portion to form a right-angle bending structure, and a fixing ring buckle is arranged at the top end of the right-angle bending portion of the needle tube;
the needle handle is arranged at the vertical part of the needle tube, and the position of the needle handle is opposite to the position of the transverse part of the needle tube;
the needle handle and the needle tube are integrally injection molded;
the fixed ring is rotatably clamped on the fixed ring clamping buckle;
the folding sheath is rotatably arranged on the fixing ring;
the first outlet of the tee joint is connected with the bottom end of the vertical part of the needle tube through a conduit, the second outlet is connected with the internal conical threaded joint through a conduit, and the third outlet is connected with the needleless dosing joint;
the locking clamp is arranged on the conduit between the tee joint and the internal conical threaded joint;
the needle tip shield is sleeved on the transverse portion of the needle tube.
The safety chest needle comprises a hollow cylinder, wherein a semicircular notch is formed in the bottom end of the cylinder upwards; the outer wall surface of the cylinder is provided with a convex buckle which is positioned right above the semicircular notch, and the included angle between the central axis of the convex buckle and the edge of one side of the semicircular notch is 30-40 degrees;
the cylinder is rotatably sleeved on the fixed ring buckle, and the transverse part of the needle tube is positioned in the semicircular notch.
The safety chest needle is characterized in that the depth of the semicircular notch is 2mm.
The above-mentioned safe thorax needle, folding sheath includes fixed plate and needle tubing protection groove, wherein:
the fixing plate is provided with a through hole matched with the convex buckle, and the convex buckle is rotatably clamped in the through hole;
one end of the needle tube protection groove is arranged on the fixing plate in a foldable way, the other end of the needle tube protection groove is provided with a catheter fixing clamping groove, and the catheter fixing clamping groove is positioned on the outer wall surface of the bottom of the needle tube protection groove;
the inside of needle tubing protection groove sets up a needle tubing clamp lamella, just the one end of needle tubing clamp lamella is fixed on the one side cell wall of needle tubing protection groove.
The safe chest needle is characterized in that the folding included angle between the needle tube protecting groove and the fixing plate is 0-90 degrees, and the narrowest thickness of the joint of the needle tube protecting groove and the fixing plate is 0.2-0.3 mm.
The safe chest needle is characterized in that an included angle between the needle tube clamping valve and the wall of the needle tube protection groove connected with the needle tube clamping valve is 60 degrees.
The safe chest needle is characterized in that the middle part of the needle handle is connected with the vertical part of the needle tube, and the left part and the right part of the needle handle are of a foldable structure.
The safe chest needle can effectively protect the needle point after the safe chest needle is used, and can effectively avoid the damage of medical staff or related staff possibly contacting the needle point caused by the exposure of the needle point.
Drawings
FIG. 1 is a schematic view of the safety chest needle of the present invention (front view);
FIG. 2 is a schematic view of the safety chest needle of the present invention (rear view effect);
FIG. 3a is a diagram showing the connection of a needle handle to a needle cannula;
FIG. 3b is a side view of FIG. 3 a;
FIG. 4a is a perspective view of a retainer ring;
FIG. 4b is a top view of the retainer ring;
FIG. 4c is a front view of the retainer ring;
FIG. 5a is a schematic view of a folded sheath;
FIG. 5b is a cross-sectional view taken along line A-A of FIG. 5 a;
FIG. 5c is a B-B cross-sectional view of FIG. 5 a;
FIG. 5d is a side view of the folded sheath;
FIG. 6 is a schematic view of the installation of the needle handle, needle cannula, retainer ring and folding sheath;
FIG. 7 is a schematic illustration of the attachment of the retainer ring to the folded sheath;
fig. 8 is a schematic view of a needle cannula snap-fit within a folded sheath.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present invention, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 1 to 8, a safety chest needle according to the preferred embodiment of the present invention comprises a needle handle 1, a needle tube 2, a fixing ring 3, a folding sheath 4, a tee 6, a needleless medicated head 7, a locking clip 8, an internal conical threaded head 9 and a needle tip sheath 10.
Referring to fig. 3a and 3b, the needle tube 2 includes a transverse portion and a vertical portion, and the top end of the vertical portion of the needle tube 2 is connected with one end of the transverse portion to form a right angle bending structure, that is, the bending angle α1 of the needle tube 2 is 90 °. The top end of the right-angle bending part of the needle tube 2 is provided with a fixed ring buckle 21; the middle part of the needle handle 1 is arranged at the vertical part of the needle tube 2, and the position of the needle handle 1 is opposite to the position of the transverse part of the needle tube 2; the left and right parts of the needle handle 1 are of a foldable structure, so that the needle handle is convenient to hold in the puncture process. The needle handle 1 and the needle tube 2 are integrally injection molded.
The fixed ring 3 is rotatably clamped on the fixed ring buckle 21; the folding sheath 4 is rotatably provided on the retainer ring 3. The first outlet of the tee joint 6 is connected with the bottom end of the vertical part of the needle tube 2 through a conduit 5, the second outlet is connected with an internal conical threaded joint 9 through the conduit 5, and the third outlet is connected with a needleless dosing joint 7; the locking clamp 8 is arranged on the conduit 5 between the tee joint 6 and the internal conical threaded joint 9; the needle tip shield 10 is sleeved on the transverse part of the needle tube 2.
Referring to fig. 4a to 4c, the fixing ring 3 includes a hollow cylinder 31, a semicircular notch 32 is formed at the bottom end of the cylinder 31, and the depth h of the semicircular notch 32 is 2mm; the outer wall surface of the cylinder 31 is provided with a convex buckle 33, the convex buckle 33 is positioned right above the semicircular notch 32, and the included angle alpha 2 between the central axis of the convex buckle 33 and one side edge of the semicircular notch 32 is 30-40 degrees; the cylinder 31 is rotatably sleeved on the retainer clip 21, and the lateral part of the needle tube 2 is positioned in the semicircular notch 32. Thus, the retainer plate 3 can rotate about the retainer plate holder 21 by 0 to 180 degrees.
Referring to fig. 5a to 5d and fig. 6 and 7, the folding sheath 4 includes a fixing plate 41 and a needle tube protecting slot 42, a through hole 43 adapted to the protruding buckle 21 is formed on the fixing plate 31, and the protruding buckle 21 is rotatably clamped in the through hole 43, so that the folding sheath 4 can rotate 360 ° around the protruding buckle 21; one end of the needle tube protection groove 42 is arranged on the fixed plate 41 in a foldable way, the other end of the needle tube protection groove 42 is provided with a catheter fixing clamping groove 44, and the catheter fixing clamping groove 44 is positioned on the outer wall surface of the groove bottom of the needle tube protection groove 42; a needle tube clamping flap 45 is arranged in the needle tube protecting groove 42, one end of the needle tube clamping flap 45 is fixed on the groove wall 421 on one side of the needle tube protecting groove 42, and an included angle alpha 3 between the needle tube clamping flap 45 and the groove wall 421 of the needle tube protecting groove 42 connected with the needle tube clamping flap 45 is 60 degrees. The folding included angle alpha 4 between the needle tube protecting groove 42 and the fixed plate 41 is 0-90 degrees, and the narrowest thickness d of the joint c of the needle tube protecting groove 42 and the fixed plate 41 is 0.2-0.3 mm.
The maximum distance e between the two side groove walls of the catheter fixing groove 44 is 4.2mm, and the included angle alpha 5 between the two side groove walls of the catheter fixing groove 44 is 2.7-3.1 degrees.
When the safe chest needle is not used, the catheter fixing clamping groove 44 on the folding sheath 4 is clamped on the catheter 5 (see figure 2), the folding sheath 4 is pushed after the safe chest needle is used, the fixing ring 3 is rotated, when one side edge of the semicircular notch 32 in the fixing ring 3 is contacted with the transverse part of the needle tube 2, the needle tube protecting groove 42 of the folding sheath 4 is pressed to fold the safe chest needle, and meanwhile, the needle tube 2 is fixed by the needle tube clamping valve 45 in the needle tube protecting groove 42 (see figure 8).
The safe chest needle of the invention has the following characteristics:
(1) The needle tube and the needle handle are processed in an integral injection molding mode, so that the needle tube is fixed and positioned;
(2) The fixing ring can rotate 180 degrees after being installed in the fixing ring buckle;
(3) The folding sheath and the fixing ring can rotate 360 degrees after being assembled, and meanwhile, the folding sheath can be folded;
(4) The three-way connection needleless dosing connector can suck under the condition of larger liquid suction amount and can effectively prevent air from entering.
The safe chest needle provided by the invention has the advantages that the needle point shielding is carried out after the chest needle is used by introducing the folding sheath, so that the needle point can be effectively fixed in the sheath, and the damage of related personnel caused by the needle point can be avoided.
In conclusion, the safe chest needle can form effective protection on the needle point part after the safe chest needle is used, and can effectively avoid the damage of the bare needle point to medical staff or related staff possibly contacting the needle point.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (6)
1. The utility model provides a safe type chest needle, its characterized in that includes needle handle, needle tubing, retainer plate, folding sheath, tee bend, needleless medicine joint, closure clamp, internal cone screwed joint and needle point sheath, wherein:
the needle tube comprises a transverse portion and a vertical portion, the top end of the vertical portion of the needle tube is connected with one end of the transverse portion to form a right-angle bending structure, and a fixing ring buckle is arranged at the top end of the right-angle bending portion of the needle tube;
the needle handle is arranged at the vertical part of the needle tube, and the position of the needle handle is opposite to the position of the transverse part of the needle tube;
the needle handle and the needle tube are integrally injection molded;
the fixed ring is rotatably clamped on the fixed ring clamping buckle;
the folding sheath is rotatably arranged on the fixing ring;
the first outlet of the tee joint is connected with the bottom end of the vertical part of the needle tube through a conduit, the second outlet is connected with the internal conical threaded joint through a conduit, and the third outlet is connected with the needleless dosing joint;
the locking clamp is arranged on the conduit between the tee joint and the internal conical threaded joint;
the needle tip shield is sleeved at the transverse part of the needle tube,
the fixing ring comprises a hollow cylinder, and a semicircular notch is formed in the bottom end of the cylinder upwards; the outer wall surface of the cylinder is provided with a convex buckle which is positioned right above the semicircular notch, and the included angle between the central axis of the convex buckle and the edge of one side of the semicircular notch is 30-40 degrees;
the cylinder is rotatably sleeved on the fixed ring buckle, and the transverse part of the needle tube is positioned in the semicircular notch.
2. A safety chest needle according to claim 1, wherein the semicircular notch has a depth of 2mm.
3. The safety chest needle of claim 1, wherein the folding sheath comprises a retaining plate and a needle cannula protection slot, wherein:
the fixing plate is provided with a through hole matched with the convex buckle, and the convex buckle is rotatably clamped in the through hole;
one end of the needle tube protection groove is arranged on the fixing plate in a foldable way, the other end of the needle tube protection groove is provided with a catheter fixing clamping groove, and the catheter fixing clamping groove is positioned on the outer wall surface of the bottom of the needle tube protection groove;
the inside of needle tubing protection groove sets up a needle tubing clamp lamella, just the one end of needle tubing clamp lamella is fixed on the one side cell wall of needle tubing protection groove.
4. A safety chest needle according to claim 3, wherein the folding angle between the needle tube protecting groove and the fixing plate is 0-90 °, and the narrowest thickness of the connecting part of the needle tube protecting groove and the fixing plate is 0.2-0.3 mm.
5. A safety chest needle according to claim 3, wherein the angle between the needle tube clip and the wall of the needle tube protecting slot to which it is attached is 60 °.
6. The safety chest needle of claim 1, wherein the middle portion of the needle handle is connected to the vertical portion of the needle tube, and the left and right portions of the needle handle are of a foldable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187330.1A CN108210022B (en) | 2016-12-21 | 2016-12-21 | Safe type chest needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187330.1A CN108210022B (en) | 2016-12-21 | 2016-12-21 | Safe type chest needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108210022A CN108210022A (en) | 2018-06-29 |
| CN108210022B true CN108210022B (en) | 2023-11-17 |
Family
ID=62650839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611187330.1A Active CN108210022B (en) | 2016-12-21 | 2016-12-21 | Safe type chest needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108210022B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002065850A (en) * | 2000-08-28 | 2002-03-05 | Terumo Corp | Puncture piece |
| CN2621686Y (en) * | 2003-05-20 | 2004-06-30 | 唐传飞 | Pneumothorax puncture needle |
| CN201015674Y (en) * | 2007-01-15 | 2008-02-06 | 张耘 | Enclosed type residual needle for pneumothorax puncturing |
| CN204181956U (en) * | 2014-08-21 | 2015-03-04 | 廖首猜 | Safe tumor puncture needle guard group |
| CN205181905U (en) * | 2015-12-18 | 2016-04-27 | 杨子伟 | Novel intravenous route ware |
| CN205287134U (en) * | 2015-12-30 | 2016-06-08 | 安徽天康医疗科技股份有限公司 | High reliability safety needle convenient to assemble |
| CN106178187A (en) * | 2015-05-05 | 2016-12-07 | 郑万华 | Safe infusion needle device |
| CN206659880U (en) * | 2016-12-21 | 2017-11-24 | 上海康德莱企业发展集团股份有限公司 | A kind of safety type thoracic cavity pin |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2396560B (en) * | 2002-01-14 | 2005-01-05 | Future Top Medical Environment | Protecting cap structure for the needle of a syringe |
| US7431713B2 (en) * | 2003-06-18 | 2008-10-07 | Command Medical Products, Inc. | Infusion device with safety guard |
| IT1396017B1 (en) * | 2009-10-15 | 2012-11-09 | Gibertoni | MEDICAL DEVICE FOR THE APPLICATION OF CATHETER, PARTICULARLY FOR THORACENTESIS PROCEDURES. |
-
2016
- 2016-12-21 CN CN201611187330.1A patent/CN108210022B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002065850A (en) * | 2000-08-28 | 2002-03-05 | Terumo Corp | Puncture piece |
| CN2621686Y (en) * | 2003-05-20 | 2004-06-30 | 唐传飞 | Pneumothorax puncture needle |
| CN201015674Y (en) * | 2007-01-15 | 2008-02-06 | 张耘 | Enclosed type residual needle for pneumothorax puncturing |
| CN204181956U (en) * | 2014-08-21 | 2015-03-04 | 廖首猜 | Safe tumor puncture needle guard group |
| CN106178187A (en) * | 2015-05-05 | 2016-12-07 | 郑万华 | Safe infusion needle device |
| CN205181905U (en) * | 2015-12-18 | 2016-04-27 | 杨子伟 | Novel intravenous route ware |
| CN205287134U (en) * | 2015-12-30 | 2016-06-08 | 安徽天康医疗科技股份有限公司 | High reliability safety needle convenient to assemble |
| CN206659880U (en) * | 2016-12-21 | 2017-11-24 | 上海康德莱企业发展集团股份有限公司 | A kind of safety type thoracic cavity pin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108210022A (en) | 2018-06-29 |
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