CN111134793A - Improved central venous puncture needle - Google Patents
Improved central venous puncture needle Download PDFInfo
- Publication number
- CN111134793A CN111134793A CN202010050981.6A CN202010050981A CN111134793A CN 111134793 A CN111134793 A CN 111134793A CN 202010050981 A CN202010050981 A CN 202010050981A CN 111134793 A CN111134793 A CN 111134793A
- Authority
- CN
- China
- Prior art keywords
- needle
- sleeve
- amplifier
- puncture
- optical signal
- 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.)
- Pending
Links
- 239000008280 blood Substances 0.000 claims abstract description 26
- 210000004369 blood Anatomy 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims description 17
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 27
- 210000001367 artery Anatomy 0.000 abstract description 14
- 210000003462 vein Anatomy 0.000 abstract description 6
- 102000001554 Hemoglobins Human genes 0.000 description 12
- 108010054147 Hemoglobins Proteins 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 6
- 210000004204 blood vessel Anatomy 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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
- A61B17/3403—Needle locating or guiding means
-
- 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
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- 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
- A61B17/3421—Cannulas
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/1459—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters invasive, e.g. introduced into the body by a catheter
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Biophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Gastroenterology & Hepatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses an improved central venous puncture needle, which comprises a needle tube and a sleeve, wherein the sleeve is sleeved on the needle tube, the needle tube is movably arranged on a needle base, the sleeve is smoothly connected with the needle base, the other end of the needle base is provided with a fixed seat, the rear end of the fixed seat is provided with a hose, the hose is communicated with the sleeve, and the fixed seat is provided with a detection device; the detection device comprises an optical signal transmitter, an optical signal receiver and a single chip microcomputer, the optical signal transmitter and the optical signal receiver are both arranged in the needle tube, the optical signal receiver is connected with a signal processing circuit, the output end of the signal processing circuit is connected with the input end of an analog-to-digital converter, the analog-to-digital converter is electrically connected with the single chip microcomputer, a display screen is arranged on the detection device, and the display screen is connected with the single chip microcomputer. The invention has simple structure and convenient use, can identify arteries and veins by measuring the blood oxygen saturation during puncture, ensures that the puncture and the operation are carried out smoothly, and effectively solves the problems of mistaken puncture of the puncture needle, heavy operation flow and the like.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an improved central venous puncture needle.
Background
The central venipuncture is combined with ultrasonic guidance, and the central venipuncture and ultrasonic guidance are one of effective means for providing access for emergency resuscitation, critical patients, intra-operative monitoring and long-term venous nutrition. In the operation process, the biggest risk of central venipuncture lies in that the artery is punctured by mistake and cannot be found in time, so that the artery is dilated, even a catheter is put into the artery by mistake, the smooth operation is influenced, and the subsequent operation flow is heavy. And at present, a puncture needle capable of identifying arteries and veins is also lacked, so that the problem of mistaken puncture is solved, and the life safety of a patient is endangered.
Disclosure of Invention
Aiming at the defects, the invention provides the improved central venous puncture needle which is simple in structure and convenient to use, can identify arteries and veins by measuring the blood oxygen saturation degree during puncture, ensures that the puncture and the operation are smoothly carried out, and effectively solves the problems of mistaken puncture of the puncture needle, heavy operation flow and the like.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the improved central venous puncture needle comprises a needle tube and a sleeve, wherein the sleeve is sleeved on the needle tube, the needle tube is movably arranged on a needle base, the sleeve is smoothly connected with the needle base, the other end of the needle base is provided with a fixed seat, the rear end of the fixed seat is provided with a hose, the hose is communicated with the sleeve, and the fixed seat is provided with a detection device for detecting the degree of blood oxygen saturation;
the detection device comprises an optical signal transmitter, an optical signal receiver and a single chip microcomputer, the optical signal transmitter and the optical signal receiver are both arranged in the needle tube, the optical signal receiver is connected with a signal processing circuit, the output end of the signal processing circuit is connected with the input end of an analog-to-digital converter, the analog-to-digital converter is electrically connected with the single chip microcomputer, a display screen is arranged on the detection device, and the display screen is connected with the single chip microcomputer.
The invention has the beneficial effects that: when the central venous puncture needle is used, the puncture needle is punctured into a blood vessel of a patient, the optical signal emitter and the optical signal receiver are contacted with blood along with the puncture needle, the optical signal emitter can emit red light and infrared light, the red light and the infrared light irradiate the blood in the blood vessel, the reduced hemoglobin and the oxygenated hemoglobin in the blood can absorb the light energy of the red light and the infrared light, so that the intensity of the red light and the infrared light is weakened, the red light and the infrared light with weakened intensity are reflected or refracted and then received by the optical signal receiver, and are connected with the single chip microcomputer through the signal amplifier and the analog-to-digital converter, the proportion occupied by the oxygenated hemoglobin and the reduced hemoglobin in the blood can be obtained, the content of the blood oxygen saturation in the blood can be obtained and displayed on the display screen, and whether the artery is punctured by mistake or not can. The improved central venous puncture needle provided by the invention has the advantages that the structure is simple, the use is convenient, the veins and the arteries can be judged in real time by measuring the blood oxygen saturation during puncture, puncture errors and repeated puncture are reduced, the smooth proceeding of puncture and operation is ensured, and meanwhile, the pain and the discomfort of a patient are reduced.
Further, the signal processing circuit comprises an amplifier U and a resistor R1Resistance R2Sliding rheostat VR power indicating diode D1Photodiode D2And a grounding capacitor C1And a ground capacitor C2；
Power supply indicating diode D1The positive electrode is respectively connected with a grounding capacitor C1One end, a power supply VCC, a first fixed end of a sliding rheostat VR and a resistor R2One end of the power supply is connected with the negative power supply end of the amplifier U, and the power supply indicates the diode D1Negative electrode and resistor R1One end connected to a resistor R1The other end and a grounding capacitor C1The other end is connected, the sliding end of the sliding rheostat VR is connected with the reverse input end of the amplifier U, and the photosensitive diode D2The negative electrode, the second fixed end of the sliding rheostat VR and the positive power end of the amplifier U are all grounded, and the photosensitive diode D2The negative electrode is respectively connected with the second fixed end of the sliding rheostat VR and the grounding capacitor C2One end connected to a photodiode D2Positive electrode, earth capacitance C2The other end and a resistor R2The other end of the amplifier U is connected with the positive input end of an amplifier U, and the output end of the amplifier U is connected with the input end of an analog-to-digital converter.
The beneficial effect of adopting the further scheme is that: the signal processing circuit amplifies the signal collected by the puncture needle and transmits the amplified signal to the analog-to-digital converter, the converted signal is transmitted to the single chip microcomputer and displayed on the display screen, and therefore the puncture needle is more intuitive and convenient for an operator to check and prevents the artery from being punctured by mistake.
Furthermore, a first clamping groove is formed in the bottom of the needle base, and a second clamping groove matched with the first clamping groove is formed in the fixing base.
The beneficial effect of adopting the further scheme is that: the needle seat and the fixing seat are connected through the matching of the first clamping groove and the second clamping groove, so that the connection is firm, the detection device is convenient to fix, and the use of the puncture needle is not influenced.
Further, a needle cap is arranged outside the sleeve.
The beneficial effect of adopting the further scheme is that: the protective sleeve is used for protecting the needle tube and the sleeve and preventing dust and bacteria from contacting the needle tube and the sleeve to influence the use of the puncture needle.
Furthermore, flat needle wings are oppositely arranged on two sides of the needle seat.
The beneficial effect of adopting the further scheme is that: when puncturing, the flat needle wing is held by a hand to assist puncturing, so that the puncture needle is simpler and more convenient and is convenient to operate.
Furthermore, a plurality of bulges are arranged on the needle wing.
The beneficial effect of adopting the further scheme is that: the protrusions can increase the friction force between the hand and the needle wing, so that slipping during puncture is prevented, and smooth puncture is guaranteed.
Furthermore, the needle seat and the fixing seat are made of medical-grade polycarbonate, and the sleeve is made of medical-grade polyethylene.
Drawings
FIG. 1 is a schematic view of a needle;
FIG. 2 is a schematic view of the connection between the needle holder and the fixing base;
FIG. 3 is a schematic diagram of a signal processing circuit;
wherein, 1, a needle tube; 2. a sleeve; 3. a needle seat; 4. a needle wing; 5. a fixed seat; 6. a detection device; 7. a hose; 8. a first clamping groove; 9. and a second clamping groove.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
In one embodiment of the present invention, as shown in fig. 1-3, an improved central venous puncture needle is provided, which comprises a needle tube 1 and a cannula 2, wherein the cannula 2 is sleeved on the needle tube 1, the needle tube 1 is movably arranged on a needle base 3, the cannula 2 is smoothly connected with the needle base 3, the other end of the needle base 3 is provided with a fixed base 5, the rear end of the fixed base 5 is provided with a hose 7, the hose 7 is communicated with the cannula 2, and the fixed base 5 is provided with a detection device 7 for detecting the blood oxygen saturation; the detection device 7 comprises an optical signal emitter, an optical signal receiver and a single chip microcomputer, the optical signal emitter and the optical signal receiver are both arranged in the needle tube 1, the optical signal receiver is connected with a signal processing circuit, the output end of the signal processing circuit is connected with the input end of an analog-to-digital converter, the analog-to-digital converter is electrically connected with the AT89C51 single chip microcomputer, a display screen is arranged on the detection device 7 and is connected with the single chip microcomputer; the needle seat 3 and the fixing seat 5 are made of medical-grade polycarbonate, and the sleeve 2 is made of medical-grade polyethylene. When the central venous puncture needle is used, the puncture needle is punctured into a blood vessel of a patient, the optical signal emitter and the optical signal receiver are contacted with blood along with the puncture needle, the optical signal emitter can emit red light and infrared light, the red light and the infrared light irradiate the blood in the blood vessel, the reduced hemoglobin and the oxygenated hemoglobin in the blood can absorb the light energy of the red light and the infrared light, so that the intensity of the red light and the infrared light is weakened, the red light and the infrared light with weakened intensity are reflected or refracted and then received by the optical signal receiver, and are connected with the single chip microcomputer through the signal amplifier and the analog-to-digital converter, the proportion occupied by the oxygenated hemoglobin and the reduced hemoglobin in the blood can be obtained, the content of the blood oxygen saturation in the blood can be obtained and displayed on the display screen, and whether the artery is punctured by mistake or not can. The improved central venous puncture needle provided by the invention has the advantages that the structure is simple, the use is convenient, the veins and the arteries can be judged in real time by measuring the blood oxygen saturation during puncture, puncture errors and repeated puncture are reduced, the smooth proceeding of puncture and operation is ensured, and meanwhile, the pain and the discomfort of a patient are reduced.
The signal processing circuit comprises an amplifier U and a resistor R1Resistance R2Sliding rheostat VR power indicating diode D1Photodiode D2And a grounding capacitor C1And a ground capacitor C2(ii) a Electric powerSource indicating diode D1The positive electrode is respectively connected with a grounding capacitor C1One end, a power supply VCC, a first fixed end of a sliding rheostat VR and a resistor R2One end of the power supply is connected with the negative power supply end of the amplifier U, and the power supply indicates the diode D1Negative electrode and resistor R1One end connected to a resistor R1The other end and a grounding capacitor C1The other end is connected, the sliding end of the sliding rheostat VR is connected with the reverse input end of the amplifier U, and the photosensitive diode D2The negative electrode, the second fixed end of the sliding rheostat VR and the positive power end of the amplifier U are all grounded, and the photosensitive diode D2The negative electrode is respectively connected with the second fixed end of the sliding rheostat VR and the grounding capacitor C2One end connected to a photodiode D2Positive electrode, earth capacitance C2The other end and a resistor R2The other end of the amplifier U is connected with the positive input end of an amplifier U, and the output end of the amplifier U is connected with the input end of an analog-to-digital converter. The signal processing circuit amplifies the signal collected by the puncture needle and transmits the amplified signal to the analog-to-digital converter, the converted signal is transmitted to the single chip microcomputer and displayed on the display screen, and therefore the puncture needle is more intuitive and convenient for an operator to check and prevents the artery from being punctured by mistake. The bottom of the needle base 3 is provided with a first clamping groove 8, and the fixed seat 5 is provided with a second clamping groove 9 matched with the first clamping groove 8; the needle seat 3 and the fixing seat 5 are connected through the matching of the first clamping groove 8 and the second clamping groove 9, the connection is firm, the fixing of the detection device 7 is facilitated, and meanwhile, the use of the puncture needle is not influenced. A needle cap is arranged outside the sleeve 2 and used for protecting the needle tube 1 and the sleeve 2 and preventing dust and bacteria from contacting the needle tube 1 and the sleeve 2 to influence the use of the puncture needle. The flat needle wings 4 are oppositely arranged on two sides of the needle base 3, and when puncturing is carried out, the flat needle wings 4 are held by hands to assist puncturing, so that the puncture needle is simpler and more convenient and is convenient to operate. The needle wing 4 is provided with a plurality of bulges which can increase the friction force between the hand and the needle wing 4, prevent slipping during puncture and ensure smooth puncture.
When the puncture needle is used, the needle wing 4 is held by hand to puncture the puncture needle into a blood vessel of a patient, the optical signal transmitter and the optical signal receiver are contacted with blood along with the puncture needle, the optical signal transmitter can emit red light and infrared light, the red light and the infrared light irradiate the blood in the blood vessel, the reduced hemoglobin and the oxygenated hemoglobin in the blood can absorb the light energy of the red light and the infrared light, so that the intensity of the red light and the infrared light is weakened, the red light and the infrared light with weakened intensity are reflected or refracted and then received by the optical signal receiver, and are connected with the singlechip through the signal amplifier and the analog-to-digital converter, the proportion occupied by the oxygenated hemoglobin and the reduced hemoglobin in the blood can be obtained, the content of the blood oxygen saturation in the blood can be obtained and displayed on the display screen, and whether the artery is punctured by. The invention has simple structure and convenient use, can identify arteries and veins by measuring the blood oxygen saturation during puncture, ensures that the puncture and the operation are carried out smoothly, and effectively solves the problems of mistaken puncture of the puncture needle, heavy operation flow and the like.
While the present invention has been described in detail with reference to the illustrated embodiments, it should not be construed as limited to the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (7)
1. An improved central venipuncture needle is characterized by comprising a needle tube (1) and a sleeve (2), wherein the sleeve (2) is sleeved on the needle tube (1), the needle tube (1) is movably arranged on a needle base (3), the sleeve (2) is smoothly connected with the needle base (3), a fixed seat (5) is arranged at the other end of the needle base (3), a hose (6) is arranged at the rear end of the fixed seat (5), the hose (6) is communicated with the sleeve (2), and a detection device (7) for detecting the blood oxygen saturation is arranged on the fixed seat (5);
detection device (7) include light signal transmitter, light signal receiver and singlechip, light signal transmitter with light signal receiver all sets up in needle tubing (1), light signal receiver is connected with signal processing circuit, signal processing circuit output and analog-to-digital converter input are connected, analog-to-digital converter with singlechip electric connection, be provided with the display screen on detection device (7), the display screen with the singlechip is connected.
2. As claimed inThe improved central venous puncture needle of claim 1 is characterized in that the signal processing circuit comprises an amplifier U and a resistor R1Resistance R2Sliding rheostat VR power indicating diode D1Photodiode D2And a grounding capacitor C1And a ground capacitor C2；
The power indicator diode D1The positive electrode is respectively connected with a grounding capacitor C1One end, a power supply VCC, a first fixed end of a sliding rheostat VR and a resistor R2One end of the power supply is connected with the negative power supply end of the amplifier U, and the power supply indicates the diode D1Negative electrode and the resistor R1One end is connected with the resistor R1The other end of the capacitor is connected with the grounding capacitor C1The other end is connected, the sliding end of the sliding rheostat VR is connected with the reverse input end of the amplifier U, and the photosensitive diode D2The negative electrode, the second fixed end of the sliding rheostat VR and the positive power end of the amplifier U are all grounded, and the photosensitive diode D2The negative electrode is respectively connected with the second fixed end of the sliding rheostat VR and the grounding capacitor C2One end is connected with the photosensitive diode D2Positive electrode and the grounding capacitor C2The other end and the resistor R2The other end of the amplifier U is connected with the positive input end of the amplifier U, and the output end of the amplifier U is connected with the input end of the analog-to-digital converter.
3. An improved central venous puncture needle according to claim 1, characterized in that a first clamping groove (8) is arranged at the bottom of the needle seat (3), and a second clamping groove (9) matched with the first clamping groove (8) is arranged on the fixed seat (5).
4. An improved central venous puncture needle as claimed in claim 1, characterised in that a needle cap is provided outside the cannula (2).
5. An improved central venipuncture needle as claimed in claim 1, wherein flat wings (4) are oppositely arranged at both sides of said needle holder (3).
6. An improved central venipuncture needle as claimed in claim 5, wherein said wings (4) are provided with a plurality of protrusions.
7. An improved central venous puncture needle according to claim 1, characterized in that the needle seat (3) and the fixed seat (5) are made of medical grade polycarbonate, and the cannula (2) is made of medical grade polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050981.6A CN111134793A (en) | 2020-01-17 | 2020-01-17 | Improved central venous puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050981.6A CN111134793A (en) | 2020-01-17 | 2020-01-17 | Improved central venous puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111134793A true CN111134793A (en) | 2020-05-12 |
Family
ID=70525684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010050981.6A Pending CN111134793A (en) | 2020-01-17 | 2020-01-17 | Improved central venous puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111134793A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450637A (en) * | 2021-07-12 | 2021-09-28 | 吴震 | Venous transfusion device for nursing teaching |
| CN113509177A (en) * | 2020-07-29 | 2021-10-19 | 广东省计划生育科学技术研究所（广东省计划生育专科医院） | Miniature needle electrode for identifying arteriovenous in operation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6315733B1 (en) * | 2000-01-14 | 2001-11-13 | Zimmon Science Corp. | Apparatus and method for continuous measurement of portal blood pressure |
| CN205758568U (en) * | 2016-04-21 | 2016-12-07 | 南京医科大学第一附属医院 | A kind of vascular puncture puts pipe field blood oxygen saturation tester |
| CN205994506U (en) * | 2016-06-15 | 2017-03-08 | 泰州市人民医院 | A kind of special deep venous puncture of hand vein recognition |
| CN209136641U (en) * | 2018-07-10 | 2019-07-23 | 广州保瑞医疗技术有限公司 | Hemostix and arterial blood identifier |
| CN211633517U (en) * | 2020-01-17 | 2020-10-09 | 成都市第三人民医院 | Improved central venous puncture needle |
-
2020
- 2020-01-17 CN CN202010050981.6A patent/CN111134793A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6315733B1 (en) * | 2000-01-14 | 2001-11-13 | Zimmon Science Corp. | Apparatus and method for continuous measurement of portal blood pressure |
| CN205758568U (en) * | 2016-04-21 | 2016-12-07 | 南京医科大学第一附属医院 | A kind of vascular puncture puts pipe field blood oxygen saturation tester |
| CN205994506U (en) * | 2016-06-15 | 2017-03-08 | 泰州市人民医院 | A kind of special deep venous puncture of hand vein recognition |
| CN209136641U (en) * | 2018-07-10 | 2019-07-23 | 广州保瑞医疗技术有限公司 | Hemostix and arterial blood identifier |
| CN211633517U (en) * | 2020-01-17 | 2020-10-09 | 成都市第三人民医院 | Improved central venous puncture needle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509177A (en) * | 2020-07-29 | 2021-10-19 | 广东省计划生育科学技术研究所（广东省计划生育专科医院） | Miniature needle electrode for identifying arteriovenous in operation |
| CN113450637A (en) * | 2021-07-12 | 2021-09-28 | 吴震 | Venous transfusion device for nursing teaching |
| CN113450637B (en) * | 2021-07-12 | 2023-08-11 | 浙江欧健医用器材有限公司 | Intravenous infusion apparatus for nursing and teaching |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7729735B1 (en) | System and method for venous oximetry using a catheter | |
| JP2007000621A (en) | Mechanism sensing falling of needle | |
| US20200086066A1 (en) | Devices and methods for sensor-enhanced needle placement | |
| CN111134793A (en) | Improved central venous puncture needle | |
| US20140303494A1 (en) | Needle guidance system | |
| AU2017240487A1 (en) | Optical fiber sensor | |
| EP2765932A1 (en) | Needle guidance system | |
| Cheng et al. | A new venous entry detection method based on electrical bio-impedance sensing | |
| CN107714049A (en) | Noninvasive Blood Glucose Detection Methods, system and device based on Multi-information acquisition | |
| CN211633517U (en) | Improved central venous puncture needle | |
| US20090156916A1 (en) | Catheter systems with blood measurement device and methods | |
| US20150223736A1 (en) | System & method for determining blood component concentration | |
| US20180132781A1 (en) | Artery Locating Device and Automated Sampling Device for Arterial Blood Gas Measurement | |
| JP6449069B2 (en) | Infusion monitoring device | |
| JPH07504101A (en) | Guide device for puncture device and its use in portable device for locating blood vessels | |
| CN212037691U (en) | Puncture needle for distinguishing venous blood | |
| CN205759073U (en) | Piercing needle based on Infrared spectra adsorption analytical technology and type blood vessel navigation system | |
| US20220203036A1 (en) | Syringe for detecting pressure change | |
| AU2022227769A1 (en) | Methods and systems for safe injection of dermal filler procedures | |
| US20220338753A1 (en) | Devices and methods for determining the position of an intravascular probe | |
| CN209564127U (en) | A kind of venous blood-taking apparatus | |
| CN208677410U (en) | Disposable safety type blood-taking needle | |
| CN211723181U (en) | Reflection type oxyhemoglobin saturation instrument | |
| CN212700025U (en) | Special needle of PICC with alarming function | |
| CN204708861U (en) | A kind of safety arteriovenous blood-taking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |