CN109621186A - A kind of Intensive Care Therapy sampling apparatus - Google Patents
A kind of Intensive Care Therapy sampling apparatus Download PDFInfo
- Publication number
- CN109621186A CN109621186A CN201910081968.4A CN201910081968A CN109621186A CN 109621186 A CN109621186 A CN 109621186A CN 201910081968 A CN201910081968 A CN 201910081968A CN 109621186 A CN109621186 A CN 109621186A
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- connector
- inner core
- horizontal
- shell
- lid
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- 238000005070 sampling Methods 0.000 title claims abstract description 15
- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 14
- 230000010412 perfusion Effects 0.000 claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000000845 anti-microbial effect Effects 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 239000008280 blood Substances 0.000 abstract description 14
- 210000004369 blood Anatomy 0.000 abstract description 14
- 210000001367 artery Anatomy 0.000 abstract description 8
- 210000003462 vein Anatomy 0.000 abstract description 8
- 230000036772 blood pressure Effects 0.000 abstract description 6
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000010241 blood sampling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001361 intraarterial administration Methods 0.000 description 3
- 230000004872 arterial blood pressure Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/223—Multiway valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/0215—Measuring pressure in heart or blood vessels by means inserted into the body
-
- 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
-
- 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
- A61B5/155—Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0208—Subcutaneous access sites for injecting or removing fluids
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M2039/0202—Access sites for taking samples
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
- A61M2039/0258—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for vascular access, e.g. blood stream access
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
- A61M2039/0264—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body with multiple inlets or multiple outlets
Abstract
The present invention relates to a kind of Intensive Care Therapy sampling apparatuses, it is characterized by comprising switch and the arterial duct connecting with switch, central venous catheter, positive pressure connector and medical pressure sensors, switch has the first connector, the second connector, third connector, the 4th connector and the 5th connector, first connector is connected to by the first perfusion tube with arterial duct, positive pressure connector is installed on second connector, third connector is connected to by the second perfusion tube with central venous catheter, connects exhaust pipe on the 5th connector；And hemostix is respectively mounted on the first perfusion tube and the second perfusion tube.The invention has the advantages that: a multi-functional monitoring sampling apparatus is complemented each other to form using the switch and arterial duct, central venous catheter, patient monitor and positive pressure connector with multichannel；The collection of its switching monitoring and blood sample that can either carry out artery and central vein blood pressure, it is often more important that can avoid the bring operational issue of multiple valve.
Description
Technical field
The present invention relates to a kind of Intensive Care Therapy sampling apparatus, in particular to a kind of pollution probability is small, more conduit prisons can be achieved
The Intensive Care Therapy sampling apparatus of survey.
Background technique
Intensive Care Therapy refers to all kinds of critical patients accepted for medical treatment, with various advanced medical technology, the prison of modernization
Shield and crash equipment implement the reinforcement concentrated treatment and nursing to it.To ensure the existence of patient and subsequent to greatest extent
Quality of life.Be above public ward in the interior architecture and facility requirements of intensive care unit, with to the maximum extent facilitate and
When monitoring and critical.Medical instruments is in addition to public ward indispensability has, and there are many monitoring instruments for often outfit, with real-time
Monitor every life index of patient.
Usually using to monitoring of blood pressure include that the monitoring of invasive artery and central vein monitor, wherein arterial pressure monitoring
It is the method that arterial duct merging intra-arterial is directly measured into intra-arterial blood pressure, is suitable for shock, seriously disease, serious surrounding
Vessel retraction carries out in the art of major operation or the operation patients that are in peril of one's life and postoperative care, there are high-risk situation patients for other
Monitoring；And central venous pressure monitoring refers to the pressure of monitoring atrium dextrum and superior and inferior vena cave thoracic cavity section, it can determine whether patient's blood
The comprehensive condition of capacity, heart function and antiotasis.
In artery monitoring or vein monitoring, need in artery or central vein merging conduit, and conduit is accessed into correlation
Patient monitor realize, to ensure the accuracy of data；Meanwhile it being generally fitted provided on conduit and collecting adopting for patient blood gas's sample
Blood device.
Conventional blood-taking device is carried out using multiple threeways or four-way valve series connection at present, to be drawn blood, to be vented
Necessary operation, although having blood not easy to leak, safe and reliable advantage, it can only enough blood samplings for meeting single conduit
It is required that using being above restricted；And valve quantity is more, generally reaches two or more, use is more complicated, for puncturing medical care
The technical requirements of personnel are very high；And it also needs to carry out corresponding operating removing sealing cap using to sealing cap on some triple valves
When, it is easy to appear the problem of sealing cap falls pollution, it is more troublesome.
Summary of the invention
Operation difficulty can be reduced the technical problem to be solved in the present invention is to provide one kind and can realize more catheter monitorings
Intensive Care Therapy sampling apparatus.
In order to solve the above technical problems, the technical solution of the present invention is as follows: Intensive Care Therapy sampling apparatus, it is characterised in that: packet
Include switch, arterial duct, central venous catheter, positive pressure connector and medical pressure sensor；
The switch includes shell, inner core, reset spring and upper cover,
The shell is the vertically disposed hollow cylindrical structure of an axis, the center of the shell have one vertically from
Housing tip extends to the cylindrical container chamber of housing bottom, and the bottom of cylindrical container chamber has a spring mounting post；The shell
It is integrally formed on the outer circumference surface of body to have the first connector, the second connector, third connector and the 4th being connected to cylindrical container chamber
Connector, first connector, the second connector, third connector and the 4th connector circular array are successively evenly distributed on the outer of shell
On periphery；
The cylindrical container that the inner core is built in shell is intracavitary, and inner core is the cylinder of a just embeddable cylindrical container chamber
Body, the upper surface center of the inner core is integrally formed the 5th connector, and the lower end surface of inner core is provided centrally with location dimples, institute
Inner core is stated with a horizontal first passage, horizontal second channel, horizontal third channel, the horizontal first passage and level the
Two channels are located in same level and axis is mutually perpendicular to, and the outer end of the first and second horizontal channel all extends to inner core excircle
The inner end in face, the first and second horizontal channel is interconnected, and the third horizontal channel is located at the surface of the second horizontal channel, and
Axis is parallel to each other, and the outer end of the third horizontal channel extends to inner core outer circumference surface, the inner end of third horizontal channel and the
Five fittings；The outer end of the third horizontal channel is reversely set on the outer circumference surface of inner core with the outer end of the second horizontal channel
It sets；
The reset spring is mounted between the lower end surface of inner core and shell, and the upper end of reset spring is embedded in inner core location dimples
Interior, the lower end of reset spring is sleeved in spring mounting post；
The upper cover is threadedly attached in housing tip, the centre bore that there is the 5th connector of appearance to pass through at the center of upper cover；
The inner core passes through upper cover respectively and spring mounting post is realized in the intracorporal upper and lower limits of shell, and inner core is located at upper limit
When, horizontal first passage, horizontal second channel and the first connector, the second connector, third connector, the 4th connector are located at same height
Degree；When inner core is located at lower limit, horizontal third channel is located at same with the first connector, the second connector, third connector, the 4th connector
Highly；
First connector is connected to by the first perfusion tube with arterial duct, and positive pressure connector connection is equipped on the second connector, the
Three connectors are connected to by the second perfusion tube with central venous catheter, and the 4th connector is directly connected to medical pressure sensor, and the 5th
Exhaust pipe is connected on connector；And hemostix is respectively mounted on the first perfusion tube and the second perfusion tube.
The inner surface of the shell has one layer of annular antimicrobial sealing liner.
The outer circumference surface upper and lower part of the inner core is provided with circumferentially extending seal groove, is fitted into the seal groove
There is O-ring seal.
The positive pressure connector includes lid, pedestal, resilient plug and anti-lateral bending spring；
Lid is hollow structure, and the upper end of lid is Rule female connector structure, and the inner cavity of lid is mainly by small column epicoele, rotary table
Lumen and big cylinder cavity of resorption are constituted, and the lower end surface of lid is close to pedestal upper surface and is connected and fixed, at the big cylinder cavity of resorption of lid
Inner wall be provided with several along lid axially extending and equally distributed diversion trench；
Pedestal, pedestal upper end center have a protrusion for protruding into lid cavity of resorption, and raised side wall is provided with deflector hole, and raised is upper
End face is provided with spring mountings, and pedestal lower end is Rule public affairs base structure, and the internal screw thread housing center of Rule male seat body is set
An outer circle taper is set, the central passage of the outer circle taper is connected to the deflector hole of protrusion；
Resilient plug is mainly made of roundlet column upper end, round table-like middle section and hollow corrugated tube shape lower end, and resilient plug is placed in
In lid, lower end is mounted in the cannula-like protrusion of pedestal upper end center by adhesive；
Anti- lateral bending spring, the anti-lateral bending spring are mounted on the spring mountings of protrusion, and are located in resilient plug.
The present invention has the advantages that using the switch and arterial duct, central venous catheter, patient monitor with multichannel
A multi-functional monitoring sampling apparatus is complemented each other to form with positive pressure connector；It can either carry out artery and central vein blood pressure
Switching monitoring, and the collection of blood sample in artery or vein can be carried out according to medical demands, it is often more important that can avoid more
The bring operational issue of grade valve.
Detailed description of the invention
Fig. 1 is Intensive Care Therapy sampling apparatus schematic diagram of the present invention.
Fig. 2 is switch structural schematic diagram in the present invention.
Fig. 3 is in Fig. 2 along line A-A cross-sectional view.
Fig. 4 is in Fig. 2 along line B-B cross-sectional view.
Fig. 5 is the shell main view of switch in the present invention.
Fig. 6 is the shell top view of switch in the present invention.
Fig. 7 is the inner core main view of switch in the present invention.
Fig. 8 is in Fig. 7 along line C-C cross-sectional view.
Fig. 9 is positive pressure connector structural schematic diagram in the present invention.
Specific embodiment
Intensive Care Therapy sampling apparatus of the invention is as shown in Figure 1, the artery for including switch 1 and connecting with switch 1
Conduit 2, central venous catheter 3, positive pressure connector 4 and medical pressure sensor 10, switch 1 have the first connector, the second connector,
Third connector, the 4th connector and the 5th connector, the first connector is connected to by the first perfusion tube 5 with arterial duct 2, on the second connector
Positive pressure connector 4 is installed, third connector is connected to by the second perfusion tube 6 with central venous catheter 3, and exhaust is connected on the 5th connector
Pipe 8；And hemostix 9 is respectively mounted on the first perfusion tube 5 and the second perfusion tube 6.There are two mutually for the tool of medical pressure sensor 10
One interface of the interface of conducting and a signal output connector, medical pressure sensor 10 is directly connect with the 4th connector,
Another is connect by pressure washing pipe 7 with continuous flush device, and joint signal out splice going splice accesses patient monitor, and medical pressure
The interface connecting on sensor 10 with the 4th connector is the female connector of female Luer.
As shown in Figure 2,3, 4, switch 1 includes shell 11, inner core 12, reset spring 13 and upper cover 14,
As shown in Figure 5,6, shell 11 is the vertically disposed hollow cylindrical structure of an axis, and the center of the shell has an edge
Vertical direction extends to the cylindrical container chamber 115 of housing bottom from housing tip, and the bottom of cylindrical container chamber 115 has one
Spring mounting post 116；On the outer circumference surface of the shell 11 it is integrally formed have the first connector 111 being connected to cylindrical container chamber,
Second connector 112, third connector 113 and the 4th connector 114, the first connector 111, second connect 112, third connector 113 and
Four connectors, 114 circular array is successively evenly distributed on the outer circumference surface of shell 11；The inner surface of shell 11 has one layer of ring
Shape antimicrobial sealing liner.The present embodiment, the 4th connector 114 using female Luer public access header structure, so as to it is medical
The female connector of the female Luer of pressure sensor one end is directly connected to.
As shown in Figure 7,8, inner core 12 be built in shell 11 cylindrical container it is intracavitary, inner core 12 be a just embeddable circle
The cylindrical body of cylindricality accommodating chamber, the upper surface center of the inner core is integrally formed the 5th connector 124, the lower end surface of inner core 12
Location dimples 125 are provided centrally with, inner core has a horizontal first passage 121, horizontal second channel 122, horizontal third logical
Road 123, horizontal first passage 121 and horizontal second channel 122 are located in same level and axis is mutually perpendicular to, first level
Channel 121, the second horizontal channel 122 outer end all extend to inner core outer circumference surface, first level channel 121, second is horizontal logical
The inner end in road 122 is interconnected, and third horizontal channel 123 is located at the surface of the second horizontal channel 122, and axis is mutually flat
Row, the outer end of third horizontal channel 123 extend to inner core outer circumference surface, the inner end of third horizontal channel 123 and the 5th connector 124
Connection；The outer end of third horizontal channel 123 and the outer end of the second horizontal channel 122 are reversely set on the outer circumference surface of inner core 12
It sets；In addition, circumferentially extending seal groove 126 is provided in the outer circumference surface upper and lower part of inner core 12, the seal groove 126
Interior be fitted into has O-ring seal.
Reset spring 13 is mounted between the lower end surface of inner core 12 and shell 11, and the upper end insertion inner core of reset spring 13 is fixed
In the pit 125 of position, the lower end of reset spring 13 is sleeved in spring mounting post 116；Upper cover 14 is threadedly attached in shell 11
Top, the centre bore that there is the 5th connector 124 of appearance to pass through at the center of upper cover 14
In the present invention, inner core 12 realizes the upper and lower limits in shell 11 by upper cover 14 and spring mounting post 116 respectively
, when inner core 12 is located at upper limit, horizontal first passage 121, horizontal second channel 122 and the first connector 111, the second connector
112, third connector 113, the 4th connector 114 are located at sustained height；When inner core 12 is located at lower limit, horizontal third channel 123 with
First connector 111, the second connector 112, third connector 113, the 4th connector 114 are located at sustained height.
In addition, realize that each horizontal channel and the logic of each connector are connected to be more convenient to carry out the position adjustment of inner core 12,
It is connected with operation handle (not shown) on the 5th connector 124 of the top of inner core 12, can be marked in the operation handle interior
The position of 12 inner horizontal first passage 121 of core, horizontal second channel 122, horizontal third channel 123, certainly, in upper cover 14
Also instruction content corresponding with identifying in operation handle can be set.
As the more specific case study on implementation of the present invention, the positive pressure connector 4 in the present invention uses anti-bias rotation structure, avoids bullet
Property plug work when there is lateral bending and cause non-normal working:
As shown in figure 9, positive pressure connector 4 includes lid 41, pedestal 42, resilient plug 43 and anti-lateral bending spring 44；
Lid 41 is hollow structure, and the upper end of lid 41 is Rule female connector structure, and the inner cavity of lid 41 is mainly by small column
Chamber, rotary table lumen and big cylinder cavity of resorption are constituted, and the lower end surface of lid 41 is close to 42 upper surface of pedestal and is connected and fixed, lid 41
At big cylinder cavity of resorption inner wall be provided with several along lid axially extending and equally distributed diversion trench.
Pedestal 42,42 upper end center of pedestal have a protrusion for protruding into lid cavity of resorption, and raised side wall is provided with deflector hole
45, raised upper surface is provided with spring mountings, and pedestal lower end is Rule public affairs base structure, the internal screw thread of Rule male seat body
An outer circle taper is arranged in housing center, and the central passage 46 of the outer circle taper is connected to the deflector hole 45 of protrusion.
Resilient plug 43 is mainly made of roundlet column upper end, round table-like middle section and hollow corrugated tube shape lower end, elasticity
Plug 43 is placed in lid 41, and lower end is mounted in the protrusion of 42 upper end center of pedestal by adhesive.
Anti- lateral bending spring 44, anti-lateral bending spring 44 are mounted on the spring mountings of protrusion, and are located in resilient plug 43.
Working principle:
Before use, needing to return to zero to medical pressure sensor, and the sky in the first perfusion tube 5 of discharge, the second perfusion tube 6
Gas,
In the initial state, inner core 12 is in upper limit under the action of reset spring 13, passes through rotation and pressing operation handle
The position for adjusting inner core 12, so that inner core 12 overcomes the elastic deformation power of reset spring 13 to be moved to lower limit, and horizontal third
Channel 123 and the 4th connector 114 are connected, and medical pressure sensor passes through the 4th connector, horizontal third channel, the 5th connector and row
Tracheae, which is communicated with the atmosphere, to return to zero；
Again by operation handle rotary inner core 12, so that horizontal first passage 121, horizontal second channel 122 connect with first respectively
First 111, the 4th connector 114 is connected to；Then continuous flush device with certain pressure by flushing liquor pass sequentially through pressure washing pipe 7,
Medical pressure sensor 10, the 4th connector 114, horizontal second channel 122, horizontal first passage 121, the first connector 111 enter
First perfusion tube 5, and then the air being discharged in the first perfusion tube 5；Correspondingly, rotary inner core 12, so that horizontal first passage
121, horizontal second channel 122 is connected to the 4th connector 114, third connector 113 respectively；Injection is injected yet by flusher,
The air in the second perfusion tube 6 is discharged；
Continue rotary inner core 12 so that horizontal first passage 121, horizontal second channel 122 respectively with the second connector 112, first
Connector 111 is connected to, and evacuates the air in positive pressure connector 4 with syringe, and makes the injection full of reflux in it；
When monitoring blood pressure, rotary inner core 12 as needed, so that the conducting of the first connector 111, the 4th connector 114 or connection the 4th
Connector 114 and third connector 113 can carry out the measurement of arterial pressure or central vein blood pressure on corresponding access；
When arterial blood drawing, the first connector 111 is connected to by rotary inner core 12 to corresponding position with the second connector 112, so that
Arterial duct, the first perfusion tube, switch, positive pressure connector conducting, extract flushing liquor using syringe from positive pressure connector, so that
Intra-arterial blood backflow is to the first perfusion tube, until that is, available syringe puncture blood collecting device is adopted at blood backflow to hemostix 9
The flushing liquor of extraction after blood sampling, is injected again by positive pressure connector, under the action of flushing liquor blood is entered by blood
Artery；Central vein take a blood sample when, correspondingly rotate inner core, by the second connector and third fittings, adopt in a like fashion into
Row blood sampling.
Claims (4)
1. a kind of Intensive Care Therapy sampling apparatus, it is characterised in that: including switch, arterial duct, central venous catheter, positive crimping
Head and medical pressure sensor；The switch includes shell, inner core, reset spring and upper cover,
The shell is the vertically disposed hollow cylindrical structure of an axis, the center of the shell have one vertically from
Housing tip extends to the cylindrical container chamber of housing bottom, and the bottom of cylindrical container chamber has a spring mounting post；The shell
It is integrally formed on the outer circumference surface of body to have the first connector, the second connector, third connector and the 4th being connected to cylindrical container chamber
Connector, first connector, the second connector, third connector and the 4th connector circular array are successively evenly distributed on the outer of shell
On periphery；
The cylindrical container that the inner core is built in shell is intracavitary, and inner core is the cylinder of a just embeddable cylindrical container chamber
Body, the upper surface center of the inner core is integrally formed the 5th connector, and the lower end surface of inner core is provided centrally with location dimples, institute
Inner core is stated with a horizontal first passage, horizontal second channel, horizontal third channel, the horizontal first passage and level the
Two channels are located in same level and axis is mutually perpendicular to, and the outer end of the first and second horizontal channel all extends to inner core excircle
The inner end in face, the first and second horizontal channel is interconnected, and the third horizontal channel is located at the surface of the second horizontal channel, and
Axis is parallel to each other, and the outer end of the third horizontal channel extends to inner core outer circumference surface, the inner end of third horizontal channel and the
Five fittings；The outer end of the third horizontal channel is reversely set on the outer circumference surface of inner core with the outer end of the second horizontal channel
It sets；
The reset spring is mounted between the lower end surface of inner core and shell, and the upper end of reset spring is embedded in inner core location dimples
Interior, the lower end of reset spring is sleeved in spring mounting post；
The upper cover is threadedly attached in housing tip, the centre bore that there is the 5th connector of appearance to pass through at the center of upper cover；
The inner core passes through upper cover respectively and spring mounting post is realized in the intracorporal upper and lower limits of shell, and inner core is located at upper limit
When, horizontal first passage, horizontal second channel and the first connector, the second connector, third connector, the 4th connector are located at same height
Degree；When inner core is located at lower limit, horizontal third channel is located at same with the first connector, the second connector, third connector, the 4th connector
Highly；
First connector is connected to by the first perfusion tube with arterial duct, and positive pressure connector connection is equipped on the second connector, the
Three connectors are connected to by the second perfusion tube with central venous catheter, and the 4th connector is directly connected to medical pressure sensor, and the 5th
Exhaust pipe is connected on connector；And hemostix is respectively mounted on the first perfusion tube and the second perfusion tube.
2. Intensive Care Therapy sampling apparatus according to claim 1, it is characterised in that: the inner surface of the shell has one layer
Annular antimicrobial sealing liner.
3. Intensive Care Therapy sampling apparatus according to claim 1, it is characterised in that: the outer circumference surface of the inner core is upper and lower
Portion is provided with circumferentially extending seal groove, and being fitted into the seal groove has O-ring seal.
4. Intensive Care Therapy sampling apparatus according to claim 1, it is characterised in that: the positive pressure connector includes lid, seat
Body, resilient plug and anti-lateral bending spring；
Lid is hollow structure, and the upper end of lid is Rule female connector structure, and the inner cavity of lid is mainly by small column epicoele, rotary table
Lumen and big cylinder cavity of resorption are constituted, and the lower end surface of lid is close to pedestal upper surface and is connected and fixed, at the big cylinder cavity of resorption of lid
Inner wall be provided with several along lid axially extending and equally distributed diversion trench；
Pedestal, pedestal upper end center have a protrusion for protruding into lid cavity of resorption, and raised side wall is provided with deflector hole, and raised is upper
End face is provided with spring mountings, and pedestal lower end is Rule public affairs base structure, and the internal screw thread housing center of Rule male seat body is set
An outer circle taper is set, the central passage of the outer circle taper is connected to the deflector hole of protrusion；
Resilient plug is mainly made of roundlet column upper end, round table-like middle section and hollow corrugated tube shape lower end, and resilient plug is placed in
In lid, lower end is mounted in the cannula-like protrusion of pedestal upper end center by adhesive；
Anti- lateral bending spring, the anti-lateral bending spring are mounted on the spring mountings of protrusion, and are located in resilient plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081968.4A CN109621186B (en) | 2019-01-28 | 2019-01-28 | Intensive care sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081968.4A CN109621186B (en) | 2019-01-28 | 2019-01-28 | Intensive care sampling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109907748A (en) * | 2019-05-20 | 2019-06-21 | 山东大学齐鲁医院 | A kind of invasive blood pressure measuring device convenient for blood specimen collection |
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| CN109907748B (en) * | 2019-05-20 | 2024-02-06 | 山东大学齐鲁医院 | Invasive blood pressure measuring device convenient for blood sample collection |
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| CN109621186B (en) | 2023-10-27 |
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