CN107469190B - Retractable intravenous infusion needle - Google Patents
Retractable intravenous infusion needle Download PDFInfo
- Publication number
- CN107469190B CN107469190B CN201710791133.9A CN201710791133A CN107469190B CN 107469190 B CN107469190 B CN 107469190B CN 201710791133 A CN201710791133 A CN 201710791133A CN 107469190 B CN107469190 B CN 107469190B
- Authority
- CN
- China
- Prior art keywords
- shell
- wall
- needle
- sleeve
- side wall
- 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.)
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Links
- 238000001990 intravenous administration Methods 0.000 title claims abstract description 33
- 238000001802 infusion Methods 0.000 title claims abstract description 29
- 210000003462 vein Anatomy 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000741 silica gel Substances 0.000 claims abstract description 9
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 9
- 238000011084 recovery Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 208000035473 Communicable disease Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
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
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a retraction type intravenous infusion needle which comprises a needle head assembly, a sleeve and a retraction type assembly, wherein the needle head assembly comprises a vein puncture needle and a vein infusion needle, the rear end of the vein infusion needle is fixed on a vein needle seat, the vein puncture needle sequentially passes through a silica gel plug in the sleeve and the vein needle seat to enter the vein infusion needle, the rear end of the vein puncture needle is fixed on a sleeve base, the retraction type assembly comprises a shell and a retraction device, the retraction device comprises a cylindrical positioning device and a cylindrical retraction barrel, one side of the outer side wall of the retraction barrel is connected with the side wall of the positioning device, the other side of the retraction barrel is provided with a pressing handle, two sides of the outer side wall of the lower end of the retraction barrel are provided with pin shafts, and pin shaft fixing holes matched with the pin shafts are respectively arranged on the front wall of the shell and the rear wall of the shell. The invention has simple structure, convenient use and high safety, and replaces the operation of slowly pulling out the vein puncture needle by a nurse by one-time pressing, thereby saving time and labor.
Description
Technical Field
The invention belongs to the field of medical appliances, and particularly relates to a retractable intravenous infusion needle.
Background
The application of the intravenous infusion needle (vein detained needle) is a better method for clinical infusion, on one hand, the pain of infants caused by repeated puncture of the scalp needle can be relieved, and the intravenous infusion needle can be suitable for adults for long-term infusion. On the other hand, the workload of clinical nurses is also reduced.
According to statistics, 80-90% of healthy medical staff suffering from blood-borne infectious diseases are caused by needlepoint puncture, nurses in the punctured medical staff account for 80%, safe infusion is getting more and more attention to society and hospitals, infectious disease prevention work is promoted, injuries and cross infection caused by intravenous transfusion needlepoint puncture to medical staff are effectively avoided, and a safe and healthy medical environment is provided for patients and medical staff.
Application number: 2015195397. X discloses a retractable intravenous infusion needle, including pipe subassembly, needle tubing subassembly and the infusion joint of being connected with pipe subassembly, pipe subassembly includes pipe seat and pipe, the inside cavity that is equipped with of pipe seat, the needle tubing subassembly includes needle file and pjncture needle, be provided with the retractable subassembly between pipe seat and the needle file, the retractable subassembly includes the inside protection seat that is equipped with the through-hole, set up the lower through-hole of blocking piece cavity and through-hole afterbody in the through-hole, the pjncture needle passes the through-hole in proper order, the inside cavity of pipe seat and pipe, set up the spring groove in the radial of through-hole, set up compression state's spring and stop piece in the spring groove, spring one end offsets with the protection seat, the other end offsets with stop piece, stop piece can get into blocking piece cavity and stop the pjncture needle and pass the through-hole.
Disclosure of Invention
The invention aims to provide a retraction type intravenous infusion needle which is simple in structure, simple to operate, convenient to use and high in safety.
The technical scheme of the invention is as follows:
the needle head assembly comprises a vein puncture needle and a vein transfusion needle, the rear end of the vein transfusion needle is fixed on a vein needle seat at the front end of the sleeve, a silica gel plug is arranged in the sleeve, a three-way needle seat is arranged on the side wall of the front end of the sleeve, the needle head of the vein puncture needle sequentially penetrates through the silica gel plug and the vein needle seat to enter the vein transfusion needle, the rear end of the vein puncture needle is fixed on a sleeve base, the retraction assembly comprises a shell and a recovery device positioned in the shell, the recovery device comprises a cylindrical positioning device and a cylindrical retraction barrel, the diameter of the retraction barrel is larger than that of the sleeve, one side of the outer side wall of the retraction barrel is connected with the side wall of the positioning device, a pressing handle is arranged on the other side of the retraction barrel, pin shafts perpendicular to the positioning device are arranged on the two sides of the outer side wall of the lower end of the retraction barrel, the shell comprises a left side wall of the shell, a front wall of the shell and a front end wall of the shell, the front wall of the shell and the rear wall of the shell are respectively and vertically arranged on the two sides of the left side wall of the shell, pin shaft fixing holes matched with the pin shafts are respectively arranged on the front wall of the shell, the shell front wall of the shell and the front wall of the shell is provided with sleeve holes, the sleeve penetrating through the front end hole to be contacted with the front end of the positioning device.
When the intravenous puncture needle is used, the pressing handle is pressed, the retraction device rotates around the pin shaft, the positioning device is separated from the base, and the intravenous puncture needle enters the retraction barrel along with the sleeve base under the action of the spring.
The bottom wall of the retraction cylinder is in smooth transition connection with the side wall of the positioning device.
The bottom of the retraction cylinder is in smooth transitional connection with the side wall of the positioning device, the resistance of the retraction device when the retraction device rotates around the pin shaft is small, and the rotation of the meeting device can be realized only by pressing the pressing handle with small force.
The lower side edges of the front wall and the rear wall of the shell are in smooth transition connection with the left side wall of the shell.
The bottom of the shell is matched with the bottom of the retraction device.
The left side wall of the shell is rectangular, the front end wall of the shell is rectangular, the left side edge of the front end wall of the shell is connected with the left side wall of the shell, and the front edge and the rear edge of the front end wall of the shell are respectively connected with the front wall of the shell and the rear wall of the shell.
When the pressing handle is not pressed, the distance between the side wall on one side of the retraction cylinder and the left side wall of the shell is gradually increased from bottom to top.
The left side edge of the front wall of the shell and the left side edge of the rear wall of the shell are connected with the left side wall of the shell, the upper sides of the right side edges of the front wall of the shell and the rear wall of the shell are arc-shaped edges, the lower sides of the right side edges of the front wall of the shell and the rear wall of the shell are straight edges parallel to the left side wall of the shell, and the upper ends of the straight edges are connected with the lower ends of the arc-shaped edges.
The upper end of the pressing handle is flush with the upper end of the straight edge.
An annular groove is arranged on the side wall of the sleeve, which is flush with the front end wall of the shell.
The annular groove is used for being matched with a sleeve hole on the front end wall of the shell in the vertical direction to prevent the sleeve from moving up and down in the vertical direction. The shell and the sleeve are fixed in the vertical direction through the annular groove and the sleeve hole of the front end wall of the shell.
And a positioning bulge is arranged on the side wall of the front end of the positioning device.
The sleeve base is in contact with the positioning bulge, and when the pressing handle is pressed, the sleeve falls into the retraction barrel of the housing retraction device, so that the retraction function is realized.
The side wall of the sleeve base is provided with a strip parallel to the axis of the sleeve, the length of the strip is greater than the thickness of the end wall of the front end of the shell, and the edge of the sleeve hole is provided with a strip fixing groove matched with the strip.
The strip passes through the strip fixing groove to prevent the sleeve from rotating in the horizontal direction, thereby realizing the fixation of the vein puncture needle.
The invention has the advantages and positive effects that: the operation that presses the handle once to replace nurse's slow pull vein pjncture needle, convenient to use, labour saving and time saving, vein pjncture needle retract directly to retract in the section of thick bamboo, can avoid stabbing, the security is high.
Drawings
FIG. 1 is a schematic view of the structure of a retractable intravenous infusion needle of the invention
FIG. 2 is a schematic view of the structure of the retracting intravenous infusion needle recovery device of the present invention
FIG. 3 is a schematic view of the structure of the retractable intravenous infusion needle shell of the invention
Fig. 4 is a top view of the retractable intravenous infusion needle housing of the invention
In the figure:
1. needle assembly 2, sleeve 3, retraction device 4, housing 11, needle aperture
12. Venous puncture needle 13, venous needle seat 14, three-way needle seat 15, infusion catheter 16 and hard needle seat
17. Intravenous infusion needle 21, silica gel plug 22, spring 23, annular groove 24 and sleeve base
31. Positioning projection 32, retraction cylinder 33, pressing handle 34, pin 35, and positioning device
41. Pin shaft fixing hole 42, housing front wall 43, housing left side wall 44, housing front end wall 45, sleeve hole
46. Strip fixing groove 47, arc-shaped edge 48 and straight edge
Detailed Description
As shown in fig. 1-4, the retraction type intravenous infusion needle of the invention comprises a needle head assembly 1, a sleeve 2 and a retraction type assembly, wherein the needle head assembly 1 comprises a intravenous infusion needle 12 and an intravenous infusion needle 17, the rear end of the intravenous infusion needle 17 is fixed on a intravenous needle seat 13 at the front end of the sleeve 2, a silica gel plug 21 is arranged in the sleeve 2, a three-way needle seat 14 is arranged on the side wall of the front end of the sleeve 2, the needle head of the intravenous infusion needle 12 sequentially penetrates through the silica gel plug 21 and the intravenous needle seat 13 to enter the intravenous infusion needle 17, the rear end of the intravenous infusion needle 12 is fixed on a sleeve base 24, the retraction type assembly comprises a shell 4 and a recovery device positioned in the shell 4, the recovery device comprises a cylindrical positioning device 35 and a cylindrical retraction barrel 32, the diameter of the retraction barrel 32 is larger than that of the sleeve 2, one side of the outer side wall of the retraction barrel 32 is connected with the side wall of the positioning device 35, the other side of the retraction barrel 32 is provided with a pressing handle 33, two sides of the outer side wall of the lower end of the retraction barrel 32 are provided with pins 34 perpendicular to the positioning device 35, the shell 4 comprises a shell left side wall 43, a shell front wall 42, a shell rear wall and a shell front end wall 44 are sequentially penetrated through the silica gel plug 42, the shell front wall and a shell front end wall 45 are respectively, the shell front wall 45 and the front end wall 45 is provided with a front end hole is respectively matched with the shell front shell 45 and a front end 45.
The bottom wall of the retraction cylinder 32 is in smooth transition with the side wall of the positioning device 35.
In cooperation therewith, a smooth transition is provided between the housing front wall 42 and the lower side edge of the housing rear wall and the housing left side wall 43.
As shown in fig. 4, the housing left side wall 43 is rectangular, the housing front end wall 44 is rectangular, the left side edge of the housing front end wall 44 is connected to the housing left side wall 43, and the front and rear edges of the housing front end wall 44 are connected to the housing front wall 42 and the housing rear wall, respectively.
The left side edges of the front wall 42 and the rear wall are connected with the left side wall 43, the upper sides of the right side edges of the front wall 42 and the rear wall are arc-shaped edges 47, the lower sides are straight edges 48 parallel to the left side wall 43, and the upper ends of the straight edges 48 are connected with the lower ends of the arc-shaped edges 47. The upper end of the pressing handle 33 is flush with the upper end of the straight edge 47.
An annular groove 23 is provided in the side wall of the sleeve 2 flush with the front end wall 44 of the housing. The annular groove 23 can prevent the sleeve 2 from moving in the vertical direction.
As shown in fig. 4, the positioning protrusion 31 is provided on the front side wall of the positioning device 35.
The side wall of the sleeve base 24 is provided with a strip parallel to the axis of the sleeve 2, the length of the strip is greater than the thickness of the front end wall 44 of the shell, and the edge of the sleeve hole 45 is provided with a strip fixing groove 46 matched with the strip. The strip is disposed through the strip fixing groove 46 to prevent the sleeve 2 from rotating in the horizontal direction, thereby achieving the fixation of the venous puncture needle 12.
The working procedure of this example: in use, the push handle 33 is pressed, the retraction device 3 rotates about the pin 34, the positioning device 35 is separated from the sleeve mount 24, and the sleeve mount 24 is moved into the retraction barrel 32 together with the venipuncture needle 12 under the action of the spring 22.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (2)
1. The retraction type intravenous transfusion needle comprises a needle head assembly, a sleeve and a retraction type assembly, wherein the needle head assembly comprises a intravenous puncture needle and an intravenous transfusion needle, the rear end of the intravenous transfusion needle is fixed on a vein needle seat at the front end of the sleeve, a silica gel plug is arranged in the sleeve, a three-way needle seat is arranged on the side wall of the front end of the sleeve, the needle head of the intravenous puncture needle sequentially penetrates through the silica gel plug and the vein needle seat to enter the intravenous transfusion needle, the rear end of the intravenous puncture needle is fixed on a sleeve base, the retraction type assembly comprises a shell and a recovery device positioned in the shell, the recovery device comprises a cylindrical positioning device and a cylindrical retraction barrel, the diameter of the retraction barrel is larger than that of the sleeve, one side of the outer side wall of the retraction barrel is connected with the side wall of the positioning device, the other side of the retraction barrel is provided with a pressing handle, two sides of the outer side wall of the lower end of the retraction barrel are provided with pin shafts perpendicular to the positioning device, the shell comprises a shell left side wall, a shell front wall, a shell rear wall and a shell front end wall, wherein the shell front wall and the shell rear wall are respectively and vertically arranged on two sides of the shell left side wall, pin shaft fixing holes matched with pin shafts are respectively arranged on the shell front wall and the shell rear wall, the shell front end wall is provided with sleeve holes, the sleeve penetrates through the sleeve holes to be contacted with the front end of the positioning device, the bottom wall of the retraction cylinder is in smooth transition connection with the side wall of the positioning device, the lower side edges of the shell front wall and the shell rear wall are in smooth transition connection with the shell left side wall, the shell left side wall is rectangular, the shell front end wall is rectangular, the left side edge of the shell front end wall is connected with the shell left side wall, the front edge and the rear edge of the shell front end wall are respectively connected with the shell front wall and the shell rear wall, the left side edge of the shell front wall and the shell rear wall are connected with the shell left side wall, the upper side of the right side edges of the front wall and the rear wall of the shell is an arc edge, the lower side is a straight edge parallel to the left side wall of the shell, the upper end of the straight edge is connected with the lower end of the arc edge, the upper end of the pressing handle is flush with the upper end of the straight edge, an annular groove is formed in the side wall of the sleeve, which is flush with the end wall of the front end of the shell, a positioning protrusion is arranged on the side wall of the front end of the positioning device, and the sleeve base and the positioning protrusion are in a contact state.
2. The retractable intravenous infusion needle of claim 1, wherein: the side wall of the sleeve base is provided with a strip parallel to the axis of the sleeve, the length of the strip is greater than the thickness of the end wall of the front end of the shell, and the edge of the sleeve hole is provided with a strip fixing groove matched with the strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791133.9A CN107469190B (en) | 2017-09-05 | 2017-09-05 | Retractable intravenous infusion needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791133.9A CN107469190B (en) | 2017-09-05 | 2017-09-05 | Retractable intravenous infusion needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107469190A CN107469190A (en) | 2017-12-15 |
| CN107469190B true CN107469190B (en) | 2024-01-26 |
Family
ID=60603822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710791133.9A Active CN107469190B (en) | 2017-09-05 | 2017-09-05 | Retractable intravenous infusion needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107469190B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9000761D0 (en) * | 1990-01-12 | 1990-03-14 | Davies Malcolm M | Syringe needle with safety feature |
| CN1184677A (en) * | 1996-12-02 | 1998-06-17 | 贝克顿迪金森公司 | Catheter assembly with interlocking telescoping needle shield |
| WO2009046560A2 (en) * | 2007-10-12 | 2009-04-16 | Otto Hess | Safety arrangement for the cannula of an invasive instrument |
| CN101528283A (en) * | 2005-01-24 | 2009-09-09 | 纽罗赛斯特克公司 | Apparatus and method for delivering therapeutic and/or other agents to the inner ear and to other tissues |
| WO2014108027A1 (en) * | 2013-01-11 | 2014-07-17 | 江苏磐宇科技有限公司 | Safe venous indwelling needle |
| CN205683343U (en) * | 2016-03-31 | 2016-11-16 | 威海洁瑞医用制品有限公司 | Needle tube retraction type venous detaining needle |
| CN106474593A (en) * | 2015-08-27 | 2017-03-08 | 王祖扬 | A kind of needle automatic retracting formula safe intravenous infusion needle |
| WO2017113852A1 (en) * | 2015-12-30 | 2017-07-06 | 江苏阳普医疗科技有限公司 | Medical catheter assembly with non-detachable puncture needle |
| CN208081604U (en) * | 2017-09-05 | 2018-11-13 | 山东威高集团医用高分子制品股份有限公司 | Retraction type intravenous infusion needle |
-
2017
- 2017-09-05 CN CN201710791133.9A patent/CN107469190B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9000761D0 (en) * | 1990-01-12 | 1990-03-14 | Davies Malcolm M | Syringe needle with safety feature |
| CN1184677A (en) * | 1996-12-02 | 1998-06-17 | 贝克顿迪金森公司 | Catheter assembly with interlocking telescoping needle shield |
| CN101528283A (en) * | 2005-01-24 | 2009-09-09 | 纽罗赛斯特克公司 | Apparatus and method for delivering therapeutic and/or other agents to the inner ear and to other tissues |
| WO2009046560A2 (en) * | 2007-10-12 | 2009-04-16 | Otto Hess | Safety arrangement for the cannula of an invasive instrument |
| WO2014108027A1 (en) * | 2013-01-11 | 2014-07-17 | 江苏磐宇科技有限公司 | Safe venous indwelling needle |
| CN106474593A (en) * | 2015-08-27 | 2017-03-08 | 王祖扬 | A kind of needle automatic retracting formula safe intravenous infusion needle |
| WO2017113852A1 (en) * | 2015-12-30 | 2017-07-06 | 江苏阳普医疗科技有限公司 | Medical catheter assembly with non-detachable puncture needle |
| CN205683343U (en) * | 2016-03-31 | 2016-11-16 | 威海洁瑞医用制品有限公司 | Needle tube retraction type venous detaining needle |
| CN208081604U (en) * | 2017-09-05 | 2018-11-13 | 山东威高集团医用高分子制品股份有限公司 | Retraction type intravenous infusion needle |
Non-Patent Citations (1)
| Title |
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| 云南白药粉外敷治疗静脉输液渗漏的疗效观察;孙亮;;河南职工医学院学报;-;第-卷(第03期);310-311 * |
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| Publication number | Publication date |
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| CN107469190A (en) | 2017-12-15 |
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