A kind of pressure measurement arterial puncture needleTechnical field
It the utility model is related to technical field of medical instruments, and in particular to a kind of pressure measurement arterial puncture needle.
Background technology
Artery and vein puncture is an operation, with various new skills in the fast development of each training of medical science, treatment clinical courseThe application of art, arteriopuncture turns into clinical examination and treats one of most common operating method, in the artery needed for various diseasesPCI, thromboembolism treatment and arterial blood drawing etc. are widely used.
The indication of arteriopuncture has：1st, serious shock needs the patient of first aid, and situation has no after vein quick blood transfusionImprove, coronary perfusion amount and increase effective blood volume must be improved through artery.2nd, anesthesia or average of operation periods and urgent patient holdContinuous monitoring arterial pressure.3rd, special examined or treatment are implemented, as blood gas analysis, selective angiography and treatment, cardiac catheter are putEnter, hemodialysis etc..
Clinical most common arteriopuncture position is radial artery and femoral artery, and both respectively have advantage and disadvantage.Position of radial artery compared withDeep, close to nerve, tendon, acupuncture point, pain is obvious during puncture, and this makes many patients to coordinate very well because fearing pain, veryPunctured to refusal, while also virtually increase pressure to medical personnel, influence puncture success rate, if punctured repeatedly, on the one handIncrease patient suffering, on the other hand increase the generation of complication after puncture, such as hemotoncus, vasopasm, injured nerve.Femoral artery bloodPipe is thicker, and pulsatory feeling is strong, and patient pain's degree reduces in puncture process, frequently as the preferred position of arteriopuncture, but due to solutionFeature, femoral artery and femoral vein only 0.5cm or so, and femoral artery easily rolls, and is not fixed easily, and easily penetrates femoral vein by mistake apart are cutd open,Arterial pressure can not be continued to monitor for anesthesia or average of operation periods and urgent patient.For blood gas analysis, because artery, vein it is eachEnvironment monitoring index is different in kind, and venous blood analysis result is only used for judging acid-base imbalance, it is impossible to be used in judgement is exhaledFunction is inhaled, traditional arteriopuncture method touches positioning or range estimation by the finger of medical personnel completely, by rule of thumb anatomical positionPositioning generally existing positioning is inaccurate, puncture success rate is low, and also turn into puzzlement clinical staff development new technology one is importantOperation, common section office especially few to urgent patient, is more considered stubborn problem.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of pressure measurement arterial puncture needle, contributes to medical personnel timelyJudge whether to puncture is artery, and blood pressure judges sensitive, can know that medical personnel grasp depth of needle, avoids puncturing arteries, guarantorIt is smooth to demonstrate,prove arteriopuncture.
In order to solve the above technical problems, a kind of pressure measurement arterial puncture needle of embodiment offer of the present utility model, including nook closing member,The outer tube being sheathed on the outside of nook closing member, the rear end of the outer tube are connected with casing seat, and sealing rubber is provided with described sleeve pipe seatPlug, the caulking gum are provided with nook closing member insert port beyond the Great Wall, and the rear end of the nook closing member is connected with needle core base, the front end of the nook closing memberOuter tube is injected by nook closing member insert port and stretches out the front end of outer tube, the needle core base is limited in the rear side of casing seat, describedPosition on nook closing member corresponding to casing seat is provided with a fluid hole；
The pressure measurement arterial puncture needle also includes blood pressure testing cassete, it include box body, power supply, pressure sensor, at dataUnit, display screen and hollow pricker are managed, the power supply, pressure sensor and data processing unit are described aobvious in box bodyDisplay screen is on box side wall, and the power supply is that pressure sensor, data processing unit and display screen are powered, the pressure sensingDevice is connected with the input of data processing unit, and the display screen is connected with the output end of data processing unit；
The needle point of the pricker is located at outside box body, and backshank penetrates the side wall of box body, and the sensing end of the pressure sensor is setPinhole aperture at backshank, puncture window that described sleeve pipe seat is provided with closing, being pierced through for pricker, the pressure sensor sensingGo out to flow through nook closing member, fluid hole, casing seat and pricker blood pressure handled via data processing unit after be shown on display screen.
Above-mentioned pressure measurement arterial puncture needle also includes plugging device, is made up of plugging pin and closure needle stand, the plugging pin is insertedEnter in nook closing member and block fluid hole, the closure needle stand is limited in the rear side of needle core base.
Wherein, the blood pressure testing cassete also includes the alarm unit being connected with the output end of data processing unit.
Preferably, the alarm unit is sound attention device, light attention device or acousto-optic alarm for mineral.
Further, the smooth attention device, which is provided with, represents take a blood sample correct green light and the red light of expression blood sampling mistake.
Wherein, the side wall towards casing seat of the box body is provided with Spring Card, and during blood sampling, pricker punctures casing seat, bulletSpring card and casing seat clamping.
Wherein, the blood pressure testing cassete also includes the displacement transducer being connected with data processing unit.
Above-mentioned technical proposal of the present utility model has the beneficial effect that：The utility model sets height in blood pressure testing casseteThe pressure sensor of sensitivity, blood flow to pressure sensor via nook closing member, fluid hole and casing seat after nook closing member punctures blood vesselSense at end, detect blood pressure immediately, and be shown on display screen, be correct to judge artery or veinComplete arteriopuncture and guarantee is provided.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one；
Fig. 2 is the schematic enlarged-scale view of blood pressure testing cassete in embodiment one.
Description of reference numerals：
1st, nook closing member；2nd, outer tube；3rd, casing seat；4th, sealing rubber plug；5th, needle core base；6th, fluid hole；7th, box body；8th, it is electricSource；9th, pressure sensor；10th, data processing unit；11st, display screen；12nd, pricker；13rd, plugging device；14th, alarm unit；15th, bulletSpring card；16th, displacement transducer.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawingAnd specific embodiment is described in detail.
As shown in figure 1, embodiment of the present utility model provides a kind of pressure measurement arterial puncture needle, including nook closing member 1, it is sheathed on pinOuter tube 2, the plugging device 13 in the outside of core 1, the rear end of the outer tube 2 is connected with casing seat 3, is provided with described sleeve pipe seat 3Sealing rubber plug 4, the sealing rubber plug 4 are provided with nook closing member insert port, and the rear end of the nook closing member 1 is connected with needle core base 5, describedThe front end of nook closing member 1 injects outer tube 2 by nook closing member insert port and stretches out the front end of outer tube 2, and the needle core base 5 is limited in sleeve pipeThe rear side of seat 3, the position that casing seat 3 is corresponded on the nook closing member 1 are provided with a fluid hole 6.
The plugging device 13 is made up of plugging pin and closure needle stand, the back-end closure of the closure needle stand, the plugging pinIn insertion nook closing member 1 and fluid hole 6 is blocked, the closure needle stand is limited in the rear side of needle core base 5.
The pressure measurement arterial puncture needle also includes blood pressure testing cassete as shown in Figure 2, and it includes box body 7, power supply 8, pressureSensor 9, data processing unit 10, display screen 11, alarm unit 14, displacement transducer 16 and hollow pricker 12, the electricityIn box body 7, the display screen 11 is located at box body 7 for source 8, pressure sensor 9, displacement transducer 16 and data processing unit 10In side wall, the power supply 8 is pressure sensor 9, data processing unit 10, alarm unit 14, displacement transducer 16 and display screen11 power supplies, the pressure sensor 9 are connected with the input of data processing unit 10, and the display screen 11 and alarm unit 14 divideOutput end not with data processing unit 10 is connected, and institute's displacement sensors 16 are bi-directionally connected with data processing unit 10.
The needle point of the pricker 12 is located at outside box body 7, and backshank penetrates the side wall of box body 7, the sensing of the pressure sensor 9Pinhole aperture of the end at backshank, puncture window that described sleeve pipe seat 3 is provided with closing, being pierced through for pricker 12, the pressure passSensor 9, which senses, to be flowed through the blood pressure of nook closing member 1, fluid hole 6, casing seat 3 and pricker 12 and is handled via data processing unit 10After be shown on display screen 11.
In the present embodiment, the alarm unit 14 can be sound attention device, light attention device or acousto-optic alarm for mineral.
When alarm unit 14 is light attention device, its visible side is outside box body, and light attention device is provided with and represents to punctureCorrect green light and the red light for representing punctured error, whether correct medical personnel's intuitive judgment is facilitated to puncture artery.When warning is singleWhen member 14 is sound alarm subsystem, different sound can be set to different pressure limits, so that what medical personnel judged to puncture isNo is artery.Sound attention device and light attention device can also be used in combination.
The side wall towards casing seat 3 of the box body 7 is provided with Spring Card 15, during blood sampling, pricker 12 puncture casing seat 3,Spring Card 15 and the clamping of casing seat 3.
Operation principle of the present utility model is：According to subject general knowledge and experience, angiosthenia is set in data processing unitPower reference range and vein pressure reference range, assemble blood pressure testing cassete；Plugging device extracts one section, to fluid hole without closure, outsideSleeve pipe and nook closing member puncture together, and nook closing member punctures blood vessel, and blood reaches pressure sensing via nook closing member, fluid hole, casing seat and prickerThe sensing end of device, the blood pressure that pressure sensor senses send data processing unit to, and data processing unit is by detected valueWhether judge to pierce through after being contrasted with a reference value is artery, and will determine that result is shown on display screen or via warning listMember sends alarm signal, if what is punctured is artery, nook closing member and plugging device is extracted together, outer tube is delivered to preferable blood vessel positionPut, properly fix arterial puncture needle.
Blood pressure testing cassete of the present utility model is reusable.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the artFor personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvementThe scope of protection of the utility model is also should be regarded as with retouching.