CN114533061A - PET (polyethylene terephthalate) tube for vacuum blood collection - Google Patents
PET (polyethylene terephthalate) tube for vacuum blood collection Download PDFInfo
- Publication number
- CN114533061A CN114533061A CN202011304642.2A CN202011304642A CN114533061A CN 114533061 A CN114533061 A CN 114533061A CN 202011304642 A CN202011304642 A CN 202011304642A CN 114533061 A CN114533061 A CN 114533061A
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- tube
- inner diameter
- bottom end
- pet
- conical part
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- 239000008280 blood Substances 0.000 title abstract description 36
- 210000004369 blood Anatomy 0.000 title abstract description 36
- 229920000139 polyethylene terephthalate Polymers 0.000 title description 21
- 239000005020 polyethylene terephthalate Substances 0.000 title description 21
- -1 polyethylene terephthalate Polymers 0.000 title description 2
- 238000010241 blood sampling Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 3
- 230000017531 blood circulation Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 208000010110 spontaneous platelet aggregation Diseases 0.000 description 3
- 230000023555 blood coagulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The invention discloses a PET tube for vacuum blood collection, wherein the outer diameter of a tube body is gradually and uniformly reduced from top to bottom; the inner cavity of the tube body is divided into a tube opening part, a connecting part, a conical part and a round bottom part from top to bottom; the inner diameter of the conical part is gradually and uniformly reduced from top to bottom; inner diameter r of bottom end of conical part1The inner diameter r of the tip of the tapered portion2Inner diameter r of the bottom end of the pipe opening3The magnitude relationship of (A) is: r is1>r2>r3The bottom end of the pipe opening part and the top end of the conical part are connected by a connecting part in a smooth transition way; the bottom end of the conical part is smoothly jointed with the top end of the round bottom part. When the tube body is used for sampling blood, the blood flow speed is high, and the blood sampling time is greatly shortened; the accuracy of the sample detection result is improved; the water resistance time is long; the maintaining time of the vacuum degree in the tube is superior to that of the traditional tube; is beneficial to the injection molding processing and forming of the PET pipe.
Description
Technical Field
The invention relates to a PET tube for vacuum blood collection in medical treatment.
Background
At present, domestic neutral borosilicate medical glass in the market is in serious shortage, the existing soda-lime glass tube has the problem of chronic precipitation of sodium and calcium ions, the performance and the protection of medicaments in the tube and the like can not meet the requirements of clinical examination, the examination result is greatly influenced, and specimen coagulation and platelet aggregation are easily caused.
Meanwhile, the blood flow rate is low during blood sampling, so that the blood sampling time is too long, and the phenomena of blood coagulation and platelet aggregation are easily caused, particularly for the old, infants, patients with viscous blood and special patients.
Disclosure of Invention
In order to solve the above disadvantagesThe invention aims to solve the technical problem of providing a PET tube for vacuum blood collection to replace the existing glass tube and effectively improve the blood flow rate during blood collection. In order to solve the technical problem, the invention adopts the technical scheme that the PET tube for vacuum blood sampling is characterized in that the outer diameter of the tube body is gradually and uniformly reduced from top to bottom; the inner cavity of the tube body is divided into a tube opening part, a connecting part, a conical part and a round bottom part from top to bottom; the inner diameter of the conical part is gradually and uniformly reduced from top to bottom; inner diameter r of bottom end of conical part1The inner diameter r of the tip of the tapered portion2Inner diameter r of the bottom end of the pipe opening3The magnitude relationship of (A) is: r is1>r2>r3The bottom end of the pipe opening part and the top end of the conical part are connected by a connecting part in a smooth transition way; the bottom end of the conical part is smoothly jointed with the top end of the round bottom part.
Preferably, the inner diameter r of the bottom end of the conical part1The inner diameter r of the tip of the tapered portion2Is r1：r21: 1.07-1.1. Especially r1：r2＝1:1.08～1.09。
Preferably, the external diameter R of the bottom end of the conical part of the PET pipe1The outer diameter R of the top end of the pipe opening2Is R1：R23: 3.02-3.15. Especially R1：R2＝3:3.1。
The invention has the beneficial effects that: 1. the shape of the inner cavity of the tube body is beneficial to vacuum maintenance and vacuum distribution, the blood flow speed is high during blood collection, the blood collection time is greatly shortened, the tube body is particularly helpful for blood collection of old people, infants, patients with viscous blood and special patients, and the occurrence of blood coagulation and platelet aggregation caused by low blood flow speed during blood collection is effectively avoided;
2. the volume of the dead cavity in the tube of the PET tube is reduced, the dead cavity of the vacuum blood collection tube is the unfilled space in the test tube after the sample is collected, and the existence of the dead cavity can cause the activation of platelets, thereby influencing the measurement result; reagents in the tube are uniformly distributed in the marking range of the blood sampling volume, so that blood can be fully and uniformly mixed with the reagents in the tube, and the accuracy of a sample detection result is achieved;
3. the water resistance time is long, the moisture of the reagent in the tube is not easy to volatilize and lose in a normal storage environment within the validity period, and the requirement required by clinical examination is met; thoroughly solved glass heparin tube body fracture, the opening of pipe fracture's adverse event takes place in transportation, use.
4. The retention time of the vacuum degree in the tube is superior to that of the conventional tube, and great help is provided for the validity period of products and the requirement of clinical examination.
5. Is beneficial to the injection molding processing and forming of the PET pipe.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Drawings
FIG. 1 is a schematic structural diagram of a PET tube for vacuum blood collection according to the present invention, in which data units are in millimeters;
FIG. 2 is a schematic diagram showing the structure of a PET tube for vacuum blood collection of the same specification in the prior art, wherein the data unit is millimeter.
Detailed Description
Referring to the attached drawings, the PET tube for vacuum blood collection has the length of 75mm and the blood collection amount of 2-3 ml, and reflects a specific structure of the invention. The present invention is described in detail by way of example of a PET tube of this gauge and is not meant to be applicable to this gauge only.
The body inner chamber of PET pipe from top to bottom divide into oral area 1, connecting portion 2, toper portion 3 and round bottom portion 4. Bottom end inner diameter r of tapered portion 31The inner diameter r of the tip end of the tapered portion 32Bottom end inner diameter r of the pipe mouth part 13The magnitude relationship of (A) is: r is1>r2>r3The bottom end of the pipe orifice part 1 and the top end of the conical part 3 are smoothly transited and connected by the connecting part 2; the bottom end of the conical portion 3 and the top end of the rounded portion 4 are smoothly joined. The inner diameter of the conical part 3 is gradually and uniformly reduced from top to bottom, in this example, the bottom inner diameter r of the conical part 318.4mm, the inner diameter r of the tip end of the tapered portion 32Is 9.13mm, r1：r2＝1:1.0869。
The external diameter of the body of PET pipe evenly dwindles gradually from top to bottom, and the outer wall is smooth. In this example, the outer diameter R of the bottom end of the tapered part 3 of the PET pipe112mm, the outer diameter R of the tip end of the nozzle part 12Is 12.4 mm. R1：R2＝3:3.1。
The PET tube is provided with a rubber plug, a head cover, an additive, a label and other accessories according to the conventional method, and the vacuum blood collection tube is formed by assembling and extracting air in the inner cavity of the tube body.
To verify the effect of the present invention, we performed the following comparative experiments:
1. subject: 1.1 random sampling 100 vacuum blood collection tubes of the invention as an experimental group;
1.2 randomly sampling 100 vacuum blood collection tubes made of the existing PET tubes with the same specification as a control group;
1.3 the specification of the existing PET pipe is shown in figure 2, and the production, the fitting and the assembly of the control group PET pipe and the vacuum extraction are all completed under the same working condition with the experimental group.
2. The experimental population is as follows: liuyang city x system randomly draws 100 of the employees who performed the unified physical examination.
3. The experimental method comprises the following steps: in Liuyang city, hospitals respectively take blood twice for 100 experimental groups of people, the experimental group blood taking tubes are adopted once, the control group blood taking tubes are adopted once, the blood taking amount is 3ml, and the time spent in each blood taking is observed and recorded in a parallel table. The specific operation is carried out according to the regulations of YY0314-2007 Container for collecting human venous blood samples for disposable use, WS/T661-2020 guide for collecting venous blood samples.
4. And (4) experimental conclusion: summing the time consumed by each blood collection of 100 blood collection tubes in the experimental group, and dividing the sum by 100 to obtain the average time consumed by each blood collection of the experimental group, which is 6.535 seconds;
the time spent in each blood collection of 100 blood collection tubes in the control group is summed up and then divided by 100, so that the average time spent in each blood collection of the control group is 9.343 seconds.
(9.343-6.535)/9.343, it can be seen that the test group takes about 30% less time per blood collection than the control group.
The above-mentioned implementation is only for clearly illustrating the technical solutions of the present invention, and is not to be construed as limiting the present invention in any way. The present invention has many known alternatives and modifications in the art, which fall within the scope of the present invention without departing from the spirit of the present invention.
Claims (5)
1. A PET tube for vacuum blood sampling is characterized in that the outer diameter of the tube body is gradually and uniformly reduced from top to bottom; the inner cavity of the tube body is divided into a tube opening part, a connecting part, a conical part and a round bottom part from top to bottom; the inner diameter of the conical part is gradually and uniformly reduced from top to bottom; inner diameter r of bottom end of conical part1The inner diameter r of the tip of the tapered portion2Inner diameter r of the bottom end of the pipe opening3The magnitude relationship of (A) is: r is1>r2>r3The bottom end of the pipe opening part and the top end of the conical part are connected by a connecting part in a smooth transition way; the bottom end of the conical part is smoothly jointed with the top end of the round bottom part.
2. The PET tube of claim 1 wherein the tapered portion bottom end inner diameter r1The inner diameter r of the tip of the tapered portion2Is r1：r2＝1:1.07～1.1。
3. The PET tube of claim 2 wherein the tapered portion bottom end inner diameter r1The inner diameter r of the tip of the tapered portion2Is r1：r2＝1:1.08～1.09。
4. The PET tube of any one of claims 1 to 3 wherein the tapered portion of the PET tube has a bottom end outer diameter R1The outer diameter R of the top end of the pipe opening2Is R1：R2＝3:3.02～3.15。
5. The PET tube of claim 4 wherein the tapered portion of the PET tube has a bottom end outside diameter R1The outer diameter R of the top end of the pipe opening2Is R1：R2＝3:3.1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304642.2A CN114533061A (en) | 2020-11-19 | 2020-11-19 | PET (polyethylene terephthalate) tube for vacuum blood collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011304642.2A CN114533061A (en) | 2020-11-19 | 2020-11-19 | PET (polyethylene terephthalate) tube for vacuum blood collection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114533061A true CN114533061A (en) | 2022-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011304642.2A Pending CN114533061A (en) | 2020-11-19 | 2020-11-19 | PET (polyethylene terephthalate) tube for vacuum blood collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114533061A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005296122A (en) * | 2004-04-07 | 2005-10-27 | Sekisui Chem Co Ltd | Vacuum blood collection tube |
| CN200994780Y (en) * | 2006-11-07 | 2007-12-26 | 泰尔茂医疗产品(杭州)有限公司 | Improved micro-blood sampling tube |
| CN201153949Y (en) * | 2008-01-28 | 2008-11-26 | 施慧勇 | Sealing structure of blood sampling spout |
| JP2009254605A (en) * | 2008-04-17 | 2009-11-05 | Masaru Otsuka | Tubular object holding structure |
| CN207745139U (en) * | 2017-03-31 | 2018-08-21 | 汪学耀 | A kind of pre-dilution vacuum blood collection tube |
| CN208659381U (en) * | 2018-03-05 | 2019-03-29 | 天津医科大学总医院 | A kind of micro vacuum blood collection tube and its bracket |
| CN110520045A (en) * | 2017-02-03 | 2019-11-29 | 斯特里克公司 | Sampling pipe with preservative |
| CN110811642A (en) * | 2019-09-26 | 2020-02-21 | 广州阳普医疗科技股份有限公司 | Blood sampling device |
| CN213787428U (en) * | 2020-11-19 | 2021-07-27 | 陈平轩 | PET (polyethylene terephthalate) tube for vacuum blood collection |
-
2020
- 2020-11-19 CN CN202011304642.2A patent/CN114533061A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005296122A (en) * | 2004-04-07 | 2005-10-27 | Sekisui Chem Co Ltd | Vacuum blood collection tube |
| CN200994780Y (en) * | 2006-11-07 | 2007-12-26 | 泰尔茂医疗产品(杭州)有限公司 | Improved micro-blood sampling tube |
| CN201153949Y (en) * | 2008-01-28 | 2008-11-26 | 施慧勇 | Sealing structure of blood sampling spout |
| JP2009254605A (en) * | 2008-04-17 | 2009-11-05 | Masaru Otsuka | Tubular object holding structure |
| CN110520045A (en) * | 2017-02-03 | 2019-11-29 | 斯特里克公司 | Sampling pipe with preservative |
| CN207745139U (en) * | 2017-03-31 | 2018-08-21 | 汪学耀 | A kind of pre-dilution vacuum blood collection tube |
| CN208659381U (en) * | 2018-03-05 | 2019-03-29 | 天津医科大学总医院 | A kind of micro vacuum blood collection tube and its bracket |
| CN110811642A (en) * | 2019-09-26 | 2020-02-21 | 广州阳普医疗科技股份有限公司 | Blood sampling device |
| CN213787428U (en) * | 2020-11-19 | 2021-07-27 | 陈平轩 | PET (polyethylene terephthalate) tube for vacuum blood collection |
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