CN108815630A - Lower resistance batching pig and lower resistance venous detaining needle - Google Patents
Lower resistance batching pig and lower resistance venous detaining needle Download PDFInfo
- Publication number
- CN108815630A CN108815630A CN201810686234.4A CN201810686234A CN108815630A CN 108815630 A CN108815630 A CN 108815630A CN 201810686234 A CN201810686234 A CN 201810686234A CN 108815630 A CN108815630 A CN 108815630A
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- Prior art keywords
- batching pig
- lower resistance
- batching
- catheter block
- pig
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- 238000000748 compression moulding Methods 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 9
- 238000001802 infusion Methods 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000012567 medical material Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 238000004299 exfoliation Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007704 transition Effects 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)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention provides a kind of lower resistance batching pig and lower resistance venous detaining needle, lower resistance batching pig includes batching pig main body and is set to batching pig body interior for puncturing the hollow channel that passes through of needle tubing, the lower resistance batching pig is integrated injection molding or compression molding forms, and lower resistance venous detaining needle is the venous detaining needle with the lower resistance venous detaining needle.The present invention can not only effectively reduce the resistance of the withdraw of the needle and prevent liquid leakage, and simple process, the process for eliminating aperture, while can reduce exfoliation generation, easy to use, securely and reliably.
Description
Technical field
The present invention relates to the field of medical instrument technology, and in particular to a kind of lower resistance batching pig and lower resistance venous indwelling
Needle.
Background technique
Venous detaining needle is that patient establishes venous access, is suitable for long-term infusion patient, makes patient from puncturing repeatedly
Pain is clinically widely recognized as and is applied convenient for rescue.
After clinically nursing staff sees blood back for patient's puncture using venous indwelling at present, needle tubing and indwelling will be first punctured
Conduit is sent into blood vessel together, then withdraws from puncture needle tubing, in the blood vessel by inlying catheter indwelling.
In the prior art, there is the batching pig passed through for puncturing needle tubing, traditional batching pig is generally solid in catheter block
Elastic material cock body, the frictional force that stainless steel punctures between needle tubing and batching pig in the withdraw of the needle is larger, and nursing staff often needs
Overcome very big resistance that can just pull away puncture needle tubing, so the dynamics of hand is not easy to control, when plug easily cause it is micro- quiver, lead
Cause the discomfort of patient.
In addition, in existing venous detaining needle in use, often due to the extraction of puncture needle tubing, batching pig cannot be fully sealed
The hole or gap that leave after needle tubing is extracted are punctured, so as to cause the liquid of infusion or the blood of patient from the hole or gap of batching pig
Outflow makes patient and medical staff form cross-infection, causes greatly to injure to patient and medical staff.
Furthermore the batching pig of traditional solid is needed by one of aperture process before insertion punctures needle tubing, in Tapping procedures
It is easy to produce clast.Exfoliation once enters the blood vessel of human body with needle tubing, may seriously endanger the health of human body.
Summary of the invention
In order to solve the above problems existing in the present technology, the present invention provides a kind of lower resistance batching pig and has the isolation
The venous detaining needle of plug can not only effectively reduce the resistance of the withdraw of the needle and prevent liquid leakage, and simple process, eliminate aperture
Process, while can reduce exfoliation generation, it is easy to use, securely and reliably.
Technical solution used by the first purpose of this invention：
Lower resistance batching pig, is set in the catheter block of venous detaining needle, passes through for the puncture needle tubing of venous detaining needle, feature
It is：The lower resistance batching pig include batching pig main body and be set to batching pig body interior for puncture needle tubing pass through it is hollow
Channel, the lower resistance batching pig is integrated injection molding or compression molding forms.
Specifically, the batching pig main body is divided into batching pig front end, batching pig middle-end and batching pig rear end, before batching pig
The end face at end to the direction position 0.5~1mm of thickness of middle-end is sealing solid, and the hollow channel is through before batching pig
Hold the end face of the position 0.5~1mm of thickness to batching pig rear end.
Specifically, the hollow channel includes the principal piece channel close to batching pig rear end and the latter end close to batching pig front end
Channel, the section in principal piece channel can be set as bracket, ellipse or the rectangle of round closure, and latter end channel is set as cone-shaped, end
The internal diameter of Duan Tongdao is progressively smaller until closure from batching pig rear end to batching pig front end.
Specifically, end section is rounded or oval after the batching pig, the section of batching pig front end and batching pig middle-end
Rounded, batching pig middle-end is a ring groove, and the outer perimeter of end section is greater than the periphery of batching pig front elevational sectional after batching pig
It is long.
It specifically, is interference fit, batching pig rear end between the periphery of the batching pig front end and the internal chamber wall of catheter block
Periphery and catheter block internal chamber wall between also for interference fit.
Specifically, the lower resistance batching pig is that elastomer macromolecule medical material integrated injection molding or compression molding form.
Specifically, between the ring groove and the internal chamber wall of catheter block have UV glue-line, the UV glue-line respectively with every
The internal chamber wall of peripheral, the described catheter block from plug middle-end is mutually bonded, for lower resistance batching pig to be firmly secured at catheter block
It is interior.
Specifically, the catheter block is equipped with the sprue gate for UV glue to be perfused.
Technical solution used by second object of the present invention：
Lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, catheter block front end dress
There is inlying catheter, it is characterised in that：The lower resistance batching pig is equipped in catheter block, conduit base rear end is equipped with across institute
The hollow channel for the lower resistance batching pig stated and puncture needle tubing through inlying catheter.
Compared with prior art, the present invention having the following advantages that：
1, the setting of hollow channel reduces batching pig and punctures the frictional force between needle tubing, and the resistance of the withdraw of the needle is effectively reduced, and
And the batching pig for being equipped with hollow channel is integrated and is molded, the process for saving aperture can effectively improve production efficiency；
2, good seal performance can effectively prevent avoiding because of the leakage for puncturing the medical fluid or blood that generate when needle tubing exits to medical care
The pollution or injury of personnel or patient；
3, the exfoliation generated in puncture process can be effectively reduced；
4, design rationally, it is simple process, easy to operate, easy to use.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of lower resistance batching pig embodiment 1 of the present invention；
Fig. 2 is the enlarged diagram along line A-A in Fig. 1；
Fig. 3 is the enlarged diagram along line B-B in Fig. 1；
Fig. 4 is the structural schematic diagram of lower resistance batching pig embodiment 2 of the present invention；
Fig. 5 is the enlarged diagram along line A-A in Fig. 4；
Fig. 6 is the enlarged diagram along line B-B in Fig. 4.
Description of symbols：1- batching pig main body, 11- batching pig front end, 111- batching pig front elevational sectional, 12- batching pig
Middle-end, 13- batching pig rear end, end section after 131- batching pig, 2- hollow channel, 21- latter end channel, 22- principal piece channel, 221-
Principal piece channel cross-section.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.
Embodiment 1
Lower resistance batching pig, is set in the catheter block of venous detaining needle, passes through for the puncture needle tubing of venous detaining needle, feature
It is：As shown in Figure 1, the lower resistance batching pig includes batching pig main body 1 and is set to batching pig body interior for puncture needle
Pipe across hollow channel 2, the lower resistance batching pig is integrated injection molding or compression molding forms.The setting of hollow channel 2, with
Traditional solid batching pig is compared, and because there is deformation space, can reduce batching pig to the extruding force for puncturing needle tubing, to reduce friction
Power, plug operation it is smooth, will not cause it is micro- quiver, effectively prevent causing the discomfort of patient.And the batching pig containing hollow channel is
Integrated injection molding or compression molding form, and the process for eliminating punching can effectively improve production efficiency.
Specifically, the batching pig main body 1 is divided for batching pig front end 11, batching pig middle-end 12 and batching pig rear end 13, from
The end face of batching pig front end 11 to the direction position 0.5~1mm of thickness of middle-end 12 is sealing solid, and the hollow channel 2 passes through
It is through at the end face from 11 position 0.5~1mm of thickness of batching pig front end to batching pig rear end 13.It can be summarized simply as follows, the low-resistance
Power batching pig includes longer hollow end and shorter solid-end, and hollow end is equipped with hollow channel, and solid-end seals solid
Do not set hollow channel.One side hollow end, which can reduce the resistance of the withdraw of the needle and reduce, in this way punctures exfoliation, another aspect solid-end
Can after the withdraw of the needle close pinhole immediately, prevent liquid leakage.
Specifically, the hollow channel 2 includes close to the principal piece channel 22 of batching pig rear end and close to batching pig front end
Latter end channel 21, latter end channel 21 are set as cone-shaped, and the internal diameter in latter end channel 21 is along batching pig middle-end 12 to batching pig front end 11
Direction be progressively smaller until closure, as shown in Fig. 2, principal piece channel cross-section 221 is set as round.In order to make hollow end gradually transition
To solid body end, so devising cone-shaped channel.The cone-shaped channel is also beneficial to make to puncture needle tubing by hollow simultaneously
End across solid-end when keep direction without departing from.
Specifically, the batching pig main body 1 is cylindrical, and batching pig middle-end 12 is a ring groove, such as Fig. 2 and Fig. 3 institute
Show, the outer perimeter of end section 131 is greater than the outer perimeter of batching pig front elevational sectional 111 after batching pig.In order to effectively be closed after the withdraw of the needle
The hollow channel of batching pig rear end prevents liquid leakage, so the outer diameter of batching pig rear end is set greater than batching pig front end
Even if the outer perimeter of end section is greater than the outer perimeter of batching pig front elevational sectional after outer diameter batching pig, batching pig rear end is increased with this
Magnitude of interference is to increase catheter block to the centripetal extruding force of batching pig rear end, the needle that batching pig rear end leaves when exiting puncture needle
It closes and is closed completely immediately in hole.
It specifically, is interference fit between the periphery of the batching pig front end 11 and the internal chamber wall of catheter block, after batching pig
It is also interference fit between the periphery at end 13 and the internal chamber wall of catheter block.
Specifically, the lower resistance batching pig is made of elastomer macromolecule medical material.
Specifically, between the ring groove and the internal chamber wall of catheter block have UV glue-line, the UV glue-line respectively with every
The internal chamber wall of peripheral, the described catheter block from plug middle-end 12 is mutually bonded, for lower resistance batching pig to be firmly secured at conduit
In seat.
Specifically, the catheter block is equipped with the sprue gate for UV glue to be perfused.
Lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, before catheter block
End is equipped with inlying catheter, it is characterised in that：The lower resistance batching pig is equipped in catheter block, conduit base rear end, which is equipped with, to be worn
Cross the hollow channel of the lower resistance batching pig and the puncture needle tubing through inlying catheter.
Embodiment 2
As shown in figure 4, the lower resistance batching pig includes batching pig main body 1 and is set to batching pig body interior for puncturing needle tubing
The hollow channel 2 passed through, the lower resistance batching pig is integrated injection molding or compression molding forms.
Specifically, the batching pig main body 1 is divided for batching pig front end 11, batching pig middle-end 12 and batching pig rear end 13, from
The end face of batching pig front end 11 to the direction position 0.5~1mm of thickness of middle-end 12 is sealing solid, and the hollow channel 2 passes through
It is through at the end face from 11 position 0.5~1mm of thickness of batching pig front end to batching pig rear end 13.
Specifically, the hollow channel 2 includes close to the principal piece channel 22 of batching pig rear end and close to batching pig front end
Latter end channel 21, latter end channel 21 are set as cone-shaped, and the internal diameter in latter end channel 21 is along batching pig middle-end 12 to batching pig front end 11
Direction be progressively smaller until closure, as shown in figure 5, principal piece channel cross-section 221 be set as closure bracket.
Specifically, as shown in figure 5, end section 131 is oval after the batching pig, batching pig front end 11 is cylindrical,
Batching pig middle-end 12 is a ring groove.As shown in Figure 5 and Figure 6, before the outer perimeter of end section 131 is greater than batching pig after batching pig
The outer perimeter of end section 111, herein can be by being equal to batching pig front end for the minor axis length of end section after batching pig
The outer diameter in section, to achieve the purpose that make the outer perimeter of end section after batching pig to be greater than the outer perimeter of batching pig front elevational sectional,
Other methods can be passed through.
It specifically, is interference fit between the periphery of the batching pig front end 11 and the internal chamber wall of catheter block, after batching pig
It is also interference fit between the periphery at end 13 and the internal chamber wall of catheter block.
Specifically, the lower resistance batching pig is made of elastomer macromolecule medical material.
Specifically, between the ring groove and the internal chamber wall of catheter block have UV glue-line, the UV glue-line respectively with every
The internal chamber wall of peripheral, the described catheter block from plug middle-end 12 is mutually bonded, for lower resistance batching pig to be firmly secured at conduit
In seat.
Specifically, the catheter block is equipped with the sprue gate for UV glue to be perfused.
Lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, before catheter block
End is equipped with inlying catheter, it is characterised in that：The lower resistance batching pig is equipped in catheter block, conduit base rear end, which is equipped with, to be worn
Cross the hollow channel of the lower resistance batching pig and the puncture needle tubing through inlying catheter.
The present embodiment the difference from embodiment 1 is that, as shown in figure 5, end section 131 is oval after the batching pig,
Principal piece channel cross-section 221 is in closed bracket.
Embodiment 3
Principal piece channel cross-section 221 unlike the first embodiment, is set as bracket, ellipse or the rectangle of closure by the present embodiment,
It is other identical with embodiment 1.
Embodiment 4
The present embodiment is set as round, ellipse or rectangle as different from Example 2, by principal piece channel cross-section 221, it is other with it is real
It is identical to apply example 2.
The present invention is not limited to above-mentioned embodiment, anyone can obtain other various shapes under the inspiration of the present invention
The product of formula, however, make any variation in its shape or structure, it is all that there is same as the present application or similar technical side
Case is within the scope of the present invention.
Claims (8)
1. lower resistance batching pig, is set in the catheter block of venous detaining needle, passed through for the puncture needle tubing of venous detaining needle, it is special
Sign is：The lower resistance batching pig includes batching pig main body（1）It is passed through with batching pig body interior is set to for puncturing needle tubing
Hollow channel（2）, the lower resistance batching pig is integrated injection molding or compression molding forms.
2. lower resistance batching pig according to claim 1, it is characterised in that：The batching pig main body（1）It is divided into batching pig
Front end（11）, batching pig middle-end（12）With batching pig rear end（13）, from batching pig front end（11）End face to middle-end（12）Side
It is sealing solid, the hollow channel to the position 0.5~1mm of thickness（2）Through from batching pig front end（11）Thickness 0.5~
The position 1mm to batching pig rear end（13）End face.
3. lower resistance batching pig according to claim 2, it is characterised in that：The hollow channel（2）Including close to isolation
Fill in rear end（13）Principal piece channel（22）With close batching pig front end（11）Latter end channel（21）, principal piece channel（22）Section
（221）It can be set as bracket, ellipse or the rectangle of round closure, latter end channel（21）It is set as cone-shaped, latter end channel（21）
Internal diameter by batching pig rear end（13）To batching pig front end（11）It is progressively smaller until closure.
4. lower resistance batching pig according to claim 3, it is characterised in that：End section after the batching pig（131）In circle
Shape or ellipse, batching pig front elevational sectional（111）It is rounded, batching pig middle-end（12）For a ring groove, batching pig rear end is cut
Face（131）Outer perimeter be greater than batching pig front elevational sectional（111）Outer perimeter.
5. lower resistance batching pig according to claim 4, it is characterised in that：The batching pig front end（11）Periphery with lead
It is interference fit, batching pig rear end between the internal chamber wall of tube socket（13）Periphery and catheter block internal chamber wall between also match for interference
It closes.
6. lower resistance batching pig according to claim 1, it is characterised in that：The lower resistance batching pig is by elastomer high score
Sub- medical material is made.
7. lower resistance batching pig according to claim 6, it is characterised in that：The internal chamber wall of the ring groove and catheter block
Between have UV glue-line, the UV glue-line respectively with batching pig middle-end（12）The internal chamber wall of peripheral, the described catheter block be mutually bonded,
For lower resistance batching pig to be firmly secured in catheter block, the catheter block is equipped with the sprue gate for UV glue to be perfused.
8. lower resistance venous detaining needle, including catheter block, the infusion tee being connected by extension tube with catheter block, catheter block front end
Equipped with inlying catheter, it is characterised in that：Be equipped in the catheter block lower resistance as described in any in claim 1 to 7 every
From plug, conduit base rear end is equipped with the hollow channel across the lower resistance batching pig（2）And through the puncture of inlying catheter
Needle tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686234.4A CN108815630A (en) | 2018-06-28 | 2018-06-28 | Lower resistance batching pig and lower resistance venous detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686234.4A CN108815630A (en) | 2018-06-28 | 2018-06-28 | Lower resistance batching pig and lower resistance venous detaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108815630A true CN108815630A (en) | 2018-11-16 |
Family
ID=64137919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810686234.4A Pending CN108815630A (en) | 2018-06-28 | 2018-06-28 | Lower resistance batching pig and lower resistance venous detaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108815630A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201286927Y (en) * | 2008-08-26 | 2009-08-12 | 江西洪达医疗器械集团有限公司 | Sealing batching plug of venous indwelling needle |
| CN203370153U (en) * | 2013-07-25 | 2014-01-01 | 谢世庚 | Anti-reflux venous indwelling needle |
| CN104941060A (en) * | 2015-06-29 | 2015-09-30 | 苏州林华医疗器械有限公司 | Isolation plug and venous indwelling needle with isolation plug |
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
| CN107308520A (en) * | 2017-08-11 | 2017-11-03 | 湖南平安医械科技有限公司 | A kind of batching pig and venous detaining needle |
| CN209500431U (en) * | 2018-06-28 | 2019-10-18 | 圣光医用制品股份有限公司 | Lower resistance batching pig and lower resistance venous detaining needle |
-
2018
- 2018-06-28 CN CN201810686234.4A patent/CN108815630A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201286927Y (en) * | 2008-08-26 | 2009-08-12 | 江西洪达医疗器械集团有限公司 | Sealing batching plug of venous indwelling needle |
| CN203370153U (en) * | 2013-07-25 | 2014-01-01 | 谢世庚 | Anti-reflux venous indwelling needle |
| CN104941060A (en) * | 2015-06-29 | 2015-09-30 | 苏州林华医疗器械有限公司 | Isolation plug and venous indwelling needle with isolation plug |
| CN105833389A (en) * | 2016-05-20 | 2016-08-10 | 苏州林华医疗器械股份有限公司 | Pressure-resistance low-resistance insulated plug and venous indwelling needle |
| CN107308520A (en) * | 2017-08-11 | 2017-11-03 | 湖南平安医械科技有限公司 | A kind of batching pig and venous detaining needle |
| CN209500431U (en) * | 2018-06-28 | 2019-10-18 | 圣光医用制品股份有限公司 | Lower resistance batching pig and lower resistance venous detaining needle |
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Application publication date: 20181116 |
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