CN215687804U - Perfusion valve of invasive blood pressure measurement pipeline - Google Patents
Perfusion valve of invasive blood pressure measurement pipeline Download PDFInfo
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- CN215687804U CN215687804U CN202122165318.3U CN202122165318U CN215687804U CN 215687804 U CN215687804 U CN 215687804U CN 202122165318 U CN202122165318 U CN 202122165318U CN 215687804 U CN215687804 U CN 215687804U
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Abstract
The application relates to an invasive blood pressure measuring pipeline filling valve which is used for adjusting the flow rate of liquid flowing through an invasive blood pressure measuring equipment pipeline and comprises a first connecting part, a pipe valve body and a second connecting part which are sequentially connected in a sealing manner, wherein the first connecting part, the pipe valve body and the second connecting part are communicated; the pipe valve body comprises a cylindrical microporous pipe and a pipe sleeve which is sleeved outside the microporous pipe; the radial center of the micropore pipe is provided with a micropore which penetrates through the micropore pipe in the axial direction; the pipe sleeve comprises a first pipe sleeve and a second pipe sleeve which are integrally formed from inside to outside, the first pipe sleeve is sleeved on the outer wall of the microporous pipe in an interference fit mode, and the second pipe sleeve is sleeved outside the first pipe sleeve and extends outwards along the axial direction at two ends of the first pipe sleeve; the upper part of the first pipe sleeve is provided with a vertical notch which penetrates along the axial direction. The flow velocity of invasive blood pressure measurement equipment pipeline can be adjusted in a flexible and convenient manner to the invasive blood pressure measurement pipeline filling valve of this application.
Description
Technical Field
The application belongs to the technical field of invasive blood pressure measurement, and particularly relates to a filling valve for adjusting the flow rate of liquid in a pipeline of an invasive blood pressure measurement device.
Background
Invasive Blood Pressure (IBP) measurement is a method of directly measuring the Blood pressure in a Blood vessel after puncturing a tube, and can directly, continuously and dynamically monitor the real Blood pressure condition of a patient, during measurement, a catheter is inserted into the Blood vessel of the patient through puncture and connected with a perfusion system filled with perfusion fluid (the perfusion fluid is generally physiological saline or physiological saline added with anticoagulant such as heparin) to form a fluid circulation pipeline, the pressure of the perfusion fluid in the channel is kept consistent with the pressure in the Blood vessel due to the pressure transmission effect of the fluid, and the pressure of the perfusion fluid in the channel is measured through a pressure sensor to obtain real-time Blood pressure data.
To ensure the safety of invasive blood pressure measurements, the tubing must be flushed prior to the puncturing operation, which is typically accomplished by a fill valve interposed between the syringe and the pressure transducer, to ensure that air bubbles are removed from the blood pressure measurement tubing. The filling valve comprises a microporous pipe and a rubber sleeve wrapped outside the microporous pipe, sheet-shaped lateral wings are arranged on two sides of the upper part of the rubber sleeve, a liquid passage can be formed between the inner wall of the rubber sleeve and the outer wall of the microporous pipe by pinching the two lateral wings and extruding towards the middle, and a measuring pipeline is washed by filling liquid flowing through the liquid passage. When the two side wings are loosened, the rubber sleeve is attached to the outer wall of the microporous tube again to form sealing, and the perfusion liquid flows in the measuring pipeline at an extremely low flow rate through the micropores of the microporous tube to form a pressure balance state with the blood pressure in the blood vessel.
The shape of the sheet-shaped side wing of the perfusion valve is complex, the difficulty and the cost of manufacturing are increased, and the operation of pinching the side wing to extrude towards the middle is inconvenient, so that the flow rate regulating valve which can flexibly and conveniently regulate the pipeline of the invasive blood pressure measuring equipment and is easy to produce and manufacture is needed.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide an invasive blood pressure measurement pipeline filling valve, can adjust the velocity of flow of invasive blood pressure measurement equipment pipeline in a flexible way conveniently, and easily production preparation.
The embodiment of the application can be realized by the following technical scheme:
a perfusion valve of an invasive blood pressure measuring pipeline is used for regulating the flow rate of liquid flowing through the invasive blood pressure measuring equipment pipeline and comprises a first connecting part, a pipe valve body and a second connecting part which are sequentially and hermetically connected, wherein the first connecting part, the pipe valve body and the second connecting part are communicated; the pipe valve body comprises a cylindrical microporous pipe and a pipe sleeve which is sleeved outside the microporous pipe; the radial center of the micropore pipe is provided with a micropore which penetrates through the micropore pipe in the axial direction; the pipe sleeve comprises a first pipe sleeve and a second pipe sleeve which are integrally formed from inside to outside, the first pipe sleeve is sleeved on the outer wall of the microporous pipe in an interference fit mode, and the second pipe sleeve is sleeved outside the first pipe sleeve and extends outwards along the axial direction at two ends of the first pipe sleeve; the upper part of the first pipe sleeve is provided with a vertical notch which axially penetrates through the first pipe sleeve.
Further, the axial length of the first sleeve is less than the axial length of the microporous tube.
Further, the microporous tube is made of a hard material, and the pipe sleeve is made of a soft elastic material.
Preferably, the pipe sleeve further comprises a pressing part located at an upper part of an outer wall of the second pipe sleeve.
Preferably, the first pipe sleeve further comprises guide grooves formed by axially inward recessing upper portions of two ends of the first pipe sleeve.
Furthermore, the first connecting part comprises a first pipeline, a first sealing groove, a first limiting part and a pipeline joint which are integrally formed; the diameter of the inner wall of one end of the first pipeline facing the pipe valve body is larger than that of the outer wall of the microporous pipe; the first sealing groove surrounds the outer side of one end, facing the pipe valve body, of the first pipeline; the first limiting part is positioned at the lower part of one end, facing the pipe valve body, of the first pipeline.
Further, the second connecting part comprises a second pipeline, a second sealing groove and a second limiting part which are integrally formed; the diameter of the inner wall of one end of the second pipeline facing the pipe valve body is larger than that of the outer wall of the microporous pipe; the second sealing groove surrounds the outer side of one end, facing the pipe valve body, of the second pipeline, and the second limiting part is located on the lower portion of one end, facing the pipe valve body, of the second pipeline.
Further, the first sealing groove and the second sealing groove are in sealing connection with the second pipe sleeve through interference fit; the first limiting part is detachably connected with the second limiting part.
Preferably, the first pipeline further comprises a first flow expansion groove formed by axially recessing an upper portion of the first pipeline towards one end of the pipe valve body.
Preferably, the second pipeline further comprises a second flow expansion groove formed by axially recessing an upper portion of the second pipeline towards one end of the pipe valve body.
The embodiment of the application provides an invasive blood pressure measurement pipeline filling valve has following beneficial effect at least:
1. the flow rate of liquid flowing through the pipeline of the invasive blood pressure measuring equipment is adjusted in a downward pressing mode, and the operation mode of pinching the two side wings and extruding towards the middle is changed, so that the operation of flushing the pipeline is simpler and more convenient;
2. the sheet-shaped side wings positioned at two sides of the upper part of the existing filling valve are eliminated, the manufacturing steps of the product are simplified, the production difficulty is reduced, and the production cost of the product can be effectively reduced.
Drawings
FIG. 1 is a schematic view of an invasive blood pressure measurement circuit perfusion valve installed in an invasive blood pressure measurement device according to an embodiment of the present application;
FIG. 2 is an exploded view of the assembly of the invasive blood pressure measurement line fill valve of the present application;
FIG. 3 is a perspective view of a shroud;
FIG. 4 is a schematic view of an assembly of a spool valve body according to an embodiment of the present application;
FIG. 5 is an elevation view of a spool valve body of an embodiment of the present application in an un-depressed condition;
FIG. 6 is an elevation view of a spool valve body of an embodiment of the present application in a downwardly depressed condition;
fig. 7 is a perspective view of a first connection portion according to an embodiment of the present application;
FIG. 8 is a perspective view of a second connection portion of an embodiment of the present application;
FIG. 9 is a sectional A-A plan view of the invasive blood pressure measuring line irrigation valve of the present application in a non-depressed state;
fig. 10 is a plan view a-a cut away in a downward-pressing state of the invasive blood pressure measuring line perfusion valve according to the embodiment of the present application.
Reference numerals in the figures
The perfusion valve comprises an invasive blood pressure measuring pipeline perfusion valve, a first connecting part 11, a first pipeline 111, a first sealing groove 112, a first limiting part 113, a pipeline joint 114, a first flow expansion groove 115, a pipe 12 valve body, a microporous pipe 121, micropores 1211, a temporary channel 1212, a pipe 122 sleeve, a first pipe sleeve 1221, a second pipe sleeve 1222, a vertical cut 1223, a pressing part 1224, a flow guide groove 1225, a second connecting part 13, a second pipeline 131, a second sealing groove 132, a second limiting part 133, a second flow expansion groove 135, a pressure sensor 2, a data line 21, a 3 Roel joint, a three-way zero calibration valve 4 and a perfusion tube 5.
Detailed Description
Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.
In addition, for convenience of understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the scope of the present application.
Singular references also include plural references and vice versa.
In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually put out when the products of the embodiments of the present application are used, it is only for convenience of describing the present application and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, in the description of the embodiments of the present application, the terms first, second, etc. are used herein to distinguish between different elements, but these should not be limited by the order of manufacture or by the importance of indications or implications, which may differ in name from the detailed description of the application and the claims.
The terminology used in the description is for the purpose of describing the embodiments of the application and is not intended to be limiting of the application. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The above-mentioned meanings specifically ascribed to the present application will be understood to those skilled in the art.
Fig. 1 is a schematic view of an invasive blood pressure measurement line perfusion valve 1 installed in an invasive blood pressure measurement device according to an embodiment of the present application, and fig. 2 is an exploded view of an assembly of the invasive blood pressure measurement line perfusion valve 1 according to an embodiment of the present application.
As shown in fig. 1, one end of the invasive blood pressure measurement pipeline perfusion valve 1 of the embodiment of the present application is connected to a perfusion tube 5 through a pipeline connector 114, and is configured to receive perfusion fluid from a pressurizable infusion bag and a perfusion apparatus (the pressurizable infusion bag and the perfusion apparatus are not shown in the figure), the other end of the invasive blood pressure measurement pipeline perfusion valve is connected to a pressure sensor 2 and is communicated with a fluid pipeline of the pressure sensor 2, the pressure sensor 2 is sequentially connected to a zeroing three-way valve 4, a puncture connector, an intravascular catheter (the puncture connector and the intravascular catheter are not shown in the figure), and the puncture connector 10 is connected to the intravascular catheter 101, so that a fluid passage is formed from the pressurizable infusion bag to a tip of the intravascular catheter; the invasive blood pressure measuring pipeline perfusion valve 1 controls the flow rate of the perfusion fluid flowing to the pressure sensor 2, so that the pressure of the perfusion fluid in the liquid pipeline of the pressure sensor 2 is kept the same as the blood pressure at the tip of the intravascular catheter, and the pressure sensor 2 obtains the blood pressure data of a measuring position; the pressure sensor 2 displays the acquired blood pressure data on a display device through a data line 21. The pressurizable infusion bag, the perfusion apparatus, the puncture connector, the intravascular catheter, the display device and the like are all standard components of invasive blood pressure measuring equipment, and are well known to those skilled in the art, and are not described herein again.
Fig. 2 shows an assembly exploded view of the invasive blood pressure measurement line perfusion valve 1 according to the embodiment of the present application, the invasive blood pressure measurement line perfusion valve 1 according to the embodiment of the present application includes a first connection portion 11, a tube valve body 12, and a second connection portion 13, which are hermetically connected in sequence, the first connection portion 11, the tube valve body 12, and the second connection portion 13 are communicated with each other, and the tube valve body 12 includes a cylindrical microporous tube 121 and a tube sleeve 122 wrapped around the outside of the microporous tube 121.
The structure of the tubular valve body 12 according to the embodiment of the present application will be described in detail below with reference to fig. 3 to 6.
Fig. 3 is a perspective view of a tube housing 122 according to an embodiment of the present application, fig. 4 is an assembly view of a tube valve body 12 according to an embodiment of the present application, in which the tube housing 122 is cut along a-a direction for clearly showing an internal structure, fig. 5 is a front view of the tube valve body 12, and fig. 6 is a front view of the tube valve body 12 in a downward-pressed state, as shown in fig. 3 to 6, the tube valve body 12 includes a cylindrical microporous tube 121 and a tube housing 122 wrapped around the outside of the microporous tube 121; the radial center of the micropore pipe 121 is provided with micropores 1211 which penetrate axially; the pipe sleeve 122 comprises a first pipe sleeve 1221 and a second pipe sleeve 1222 which are integrally formed from inside to outside, the first pipe sleeve 1221 is wrapped on the outer wall of the microporous pipe 121 through interference fit, and the second pipe sleeve 1222 is wrapped on the outside of the first pipe sleeve 1221 and extends axially outwards at two ends of the first pipe sleeve 1221; the first socket 1221 has a vertical cut 1223 axially therethrough at an upper portion thereof.
Further, the axial length of the first socket 1221 is smaller than the axial length of the microporous tube 121.
Further, the microporous tube 121 is made of a hard material, and the socket 122 is made of a soft elastic material.
Specifically, in a specific implementation manner of the embodiment of the present application, the microporous tube 121 is formed by injection molding or extrusion molding of a hard material, such as polycarbonate, medical glass or polyvinyl chloride, and the like, the radial center of the microporous tube 121 has a microporous 1211 running axially therethrough, and the pore size of the microporous 1211 is set to flow through the perfusate at a flow rate of 2 to 4 ml/hr, so that a pressure equilibrium state of the perfusate and the blood pressure at the measurement position is maintained in the liquid pipeline of the pressure sensor 2.
The pipe sleeve 122 is made of soft elastic material, such as medical silica gel and the like, by means of die pressing or silica gel injection molding and the like, and has good elasticity and restoring force, the pipe sleeve 122 is provided with a first pipe sleeve 1221 and a second pipe sleeve 1222 from inside to outside, the axial length of the first pipe sleeve 1221 is smaller than that of the microporous pipe 121, the diameter of the inner wall of the first pipe sleeve 1221 is slightly smaller than that of the outer wall of the microporous pipe 121, and the first pipe sleeve is elastically wrapped on the outer wall of the microporous pipe 121; the axial length of the second pipe sleeve 1222 is greater than that of the first pipe sleeve 1221, the second pipe sleeve 1222 extends outwards along the axial direction at two ends of the first pipe sleeve 1221, and the inner wall of the second pipe sleeve 1222 and the outer wall of the microporous pipe 121 form a space for accommodating liquid; a vertical cut 1223 is axially cut through the upper portion of the first socket 1221 by a numerical control machine or the like.
Figures 5 and 6 show the spool valve body 12 when not under pressure and when under pressure, respectively. When the spool valve body 12 is not pressed downward, as shown in fig. 5, the inner wall of the first socket 1221 is closely attached to the outer wall of the microporous tube 121, and the vertical slits 1223 are closed due to the elastic restoring force of the socket 122. Perfusate can only flow through the micropores 1211; when the tubular valve body 12 is forced downward, as shown in figure 6, the first sleeve 1221 deforms and its vertical slit 1223 opens to form a temporary passage 1212 for the perfusion fluid to flow through, enabling the perfusion fluid to flow at a rate greater than 60 ml/min.
Preferably, the sleeve 122 further comprises a pressing part 1224, the pressing part 1224 being located at an upper part of an outer wall of the second sleeve 1222.
Preferably, the first socket 1221 further includes guide grooves 1225, and the guide grooves 1225 are formed by axially inwardly recessing upper portions of both ends of the first socket 1221.
As shown in fig. 3 to 6, in some preferred embodiments of the present embodiment, a pressing part 1224 may be further disposed on the outer wall of the second sleeve 1222, so as to facilitate the flushing of the invasive blood pressure measuring device by pressing the tube valve body 12; guide grooves 1225 are further formed in two ends of the first pipe sleeve 1221, and by means of the guide grooves 1225, the space between the microporous pipe 121 and the second pipe sleeve 1222 can be increased, more perfusion fluid can be contained, and the effect of pipeline flushing can be improved.
The configurations of the first connection portion 11 and the second connection portion 13 according to the embodiment of the present application will be described in detail below with reference to fig. 7 and 8.
Fig. 7 is a perspective view of the first connection portion 11 according to the embodiment of the present disclosure, and as shown in fig. 7, the first connection portion 11 includes a first pipe 111, a first sealing groove 112, a first limiting portion 113, and a pipe joint 114, which are integrally formed; the diameter of the inner wall of the first pipeline 111 towards one end of the pipe valve body 12 is larger than that of the outer wall of the microporous pipe 121; the first sealing groove 112 surrounds the outside of the first pipeline 111 towards one end of the pipe valve body 12; the first limiting part 113 is positioned at the lower part of the first pipeline 111 facing one end of the pipe valve body 12; preferably, the first pipe 111 further comprises a first flow-spreading groove 115, the first flow-spreading groove 115 being formed by axially recessing an upper portion of the first pipe 111 towards one end of the spool valve body 12.
In a specific implementation manner of the embodiment of the present application, the first connection portion 11 may be made of polycarbonate or other medical hard materials by injection molding or the like, and is integrally formed, the first pipeline 111 has a liquid channel for flowing the perfusion fluid inside, and one end of the first pipeline 111 facing the perfusion unit has a pipeline joint 114, which may be connected to the luer joint 3 and connected to the pressurizable infusion bag and the perfusion unit through the infusion tube 5; the first sealing groove 112 is located at one end of the first pipeline 111 facing the pipe valve body 12, is an annular groove surrounding the outer side of the first pipeline 111, is formed by radially thickening the pipe wall of the first pipeline 111 and axially extending in an annular groove form; the first limiting part 113 is positioned at the lower part of the first pipeline 111 facing one end of the pipe valve body 12; in some preferred embodiments of the present embodiment, the first pipeline 111 further includes a first flow-spreading groove 115 located at an upper portion of the first pipeline 111 toward the end of the pipe valve body 12, for spreading the perfusate flowing from the end of the syringe.
Fig. 8 is a perspective view of the second connecting portion 13 according to the embodiment of the present application, and as shown in fig. 8, the second connecting portion 13 includes a second pipe 131, a second sealing groove 132, and a second limiting portion 133 that are integrally formed; the diameter of the inner wall of the end of the second pipe 131 facing the pipe valve body 12 is larger than that of the outer wall of the microporous pipe 121; the second sealing groove 132 surrounds the outside of the end of the second pipe 131 facing the pipe valve body 12; the second limiting part 133 is located at the lower part of the second pipeline 131 facing one end of the pipe valve body 12; preferably, the second pipe 131 also comprises a second flow-expansion groove 135, the second flow-expansion groove 135 being formed by an axial depression of the second pipe 131 towards the upper part of the end of the spool valve body 12.
In a specific implementation manner of the embodiment of the present application, the second connection portion 13 may be made of polycarbonate or other medical hard material by injection molding or the like, and further, the second connection portion 13 may be made integrally with the housing of the pressure sensor 2; the second pipe 131 has a liquid passage inside through which the perfusate flows and communicates with the liquid passage of the pressure sensor 2; the second sealing groove 132 is located at one end of the second pipeline 131 facing the pipe valve body 12, is an annular groove surrounding the outside of the second pipeline 131, is formed by radially thickening the pipe wall of the second pipeline 131, and axially extending in an annular groove form; the second limiting part 133 is located at the lower part of the second pipeline 131 facing one end of the pipe valve body 12; in some preferred embodiments of the present embodiment, the second pipeline 131 further includes a second flow-spreading groove 135 located at an upper portion of the second pipeline 131 toward the end of the tubular valve body 12, for spreading the perfusate flowing to the end of the pressure sensor 2.
The assembly and usage of the invasive blood pressure measuring line perfusion valve 1 in the embodiment of the present application will be described in detail below with reference to fig. 2 and 9 to 10.
As shown in fig. 2, the first pipe sheath 1221 is wrapped around the outer wall of the microporous pipe 121 by interference fit; the two ends of the second sleeve 1222 enter the first sealing groove 112 and the second sealing groove 132 respectively, and form a sealing connection through the elastic recovery property of the second sleeve 1222; the first position-limiting portion 113 and the second position-limiting portion 133 may be a buckle and a slot that are matched with each other, and can be detachably and fixedly connected.
Fig. 9 is a cross-sectional view of the invasive blood pressure measuring line perfusion valve 1 according to the embodiment of the present application in a blood pressure measuring state (i.e., a non-pressed state), at this time, since the first sleeve 1221 is covered on the outer wall of the microporous tube 121, and the vertical slit 1223 is in a closed state, the perfusion fluid can only flow through the micropores 1211 at a flow rate of 2 to 4 ml/hour and enter the fluid channel of the pressure sensor 2, so that the pressure of the perfusion fluid in the fluid channel of the pressure sensor 2 is balanced with the blood pressure at the tip of the intravascular catheter, and the blood pressure measured by the pressure sensor 2 is the blood pressure at the tip of the intravascular catheter.
Fig. 10 is a cross-sectional view of the perfusion valve 1 of the invasive blood pressure measuring line according to the embodiment of the present application in a flushing state, in which the first tube sleeve 1221 is pressed downward, the first tube sleeve 1221 and the second tube sleeve 1222 are deformed under a downward pressure, the vertical slit 1223 is opened, a temporary channel 1212 for allowing the perfusion fluid to pass is formed, so that the perfusion fluid can simultaneously flow through the micro-pores 1211 and the temporary channel 1212, and the flow rate of the perfusion fluid flowing through the temporary channel 1212 is much greater than the flow rate of the perfusion fluid flowing through the micro-pores 1211, so as to flush the line of the blood pressure measuring device to eliminate air bubbles in the line.
While the present invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof as defined in the appended claims.
Claims (10)
1. The utility model provides an invasive blood pressure measurement pipeline filling valve for adjust the liquid velocity of flow through in the invasive blood pressure measurement equipment pipeline, including first connecting portion, pipe valve body and the second connecting portion of sealing connection in proper order, first connecting portion the pipe valve body with the inside intercommunication of second connecting portion, its characterized in that:
the pipe valve body comprises a cylindrical microporous pipe and a pipe sleeve which is sleeved outside the microporous pipe;
the radial center of the micropore pipe is provided with a micropore which penetrates through the micropore pipe in the axial direction;
the pipe sleeve comprises a first pipe sleeve and a second pipe sleeve which are integrally formed from inside to outside, the first pipe sleeve is sleeved on the outer wall of the microporous pipe in an interference fit mode, and the second pipe sleeve is sleeved outside the first pipe sleeve and extends outwards along the axial direction at two ends of the first pipe sleeve;
the upper part of the first pipe sleeve is provided with a vertical notch which axially penetrates through the first pipe sleeve.
2. An invasive blood pressure measuring line irrigation valve according to claim 1, wherein:
the axial length of the first pipe sleeve is smaller than that of the microporous pipe.
3. An invasive blood pressure measuring line irrigation valve according to claim 2, wherein:
the microporous tube is made of a hard material, and the pipe sleeve is made of a soft elastic material.
4. An invasive blood pressure measuring line irrigation valve according to claim 3, wherein:
the pipe sleeve further comprises a pressing portion, and the pressing portion is located at the upper portion of the outer wall of the second pipe sleeve.
5. An invasive blood pressure measuring line irrigation valve according to claim 3, wherein:
the first pipe sleeve further comprises a guide groove, and the guide groove is formed by inwards recessing the upper parts of the two ends of the first pipe sleeve along the axial direction.
6. An invasive blood pressure measuring line irrigation valve according to any one of claims 1 to 5, wherein:
the first connecting part comprises a first pipeline, a first sealing groove, a first limiting part and a pipeline joint which are integrally formed;
the diameter of the inner wall of one end of the first pipeline facing the pipe valve body is larger than that of the outer wall of the microporous pipe;
the first sealing groove surrounds the outer side of one end, facing the pipe valve body, of the first pipeline;
the first limiting part is positioned at the lower part of one end, facing the pipe valve body, of the first pipeline.
7. An invasive blood pressure measuring line irrigation valve according to claim 6, wherein:
the second connecting part comprises a second pipeline, a second sealing groove and a second limiting part which are integrally formed;
the diameter of the inner wall of one end of the second pipeline facing the pipe valve body is larger than that of the outer wall of the microporous pipe;
the second sealing groove surrounds the outer side of one end, facing the pipe valve body, of the second pipeline;
the second limiting part is positioned at the lower part of one end, facing the pipe valve body, of the second pipeline.
8. An invasive blood pressure measuring line irrigation valve according to claim 7, wherein:
the first sealing groove and the second sealing groove are in sealing connection with the second pipe sleeve through interference fit;
the first limiting part is detachably connected with the second limiting part.
9. An invasive blood pressure measuring line irrigation valve according to claim 8, wherein:
the first pipeline further comprises a first flow expansion groove which is formed by axially sinking the first pipeline towards the upper part of one end of the pipe valve body.
10. An invasive blood pressure measuring line irrigation valve according to claim 8, wherein:
the second pipeline further comprises a second flow expansion groove which is formed by axially sinking the second pipeline towards the upper part of one end of the pipe valve body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122165318.3U CN215687804U (en) | 2021-09-08 | 2021-09-08 | Perfusion valve of invasive blood pressure measurement pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122165318.3U CN215687804U (en) | 2021-09-08 | 2021-09-08 | Perfusion valve of invasive blood pressure measurement pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113598739A (en) * | 2021-09-08 | 2021-11-05 | 山东柏新医疗制品有限公司 | Pipeline patency detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113598739A (en) * | 2021-09-08 | 2021-11-05 | 山东柏新医疗制品有限公司 | Pipeline patency detection device and method |
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