CN211460194U

CN211460194U - Pressure testing assembly and invasive pressure sensor

Info

Publication number: CN211460194U
Application number: CN201921620722.1U
Authority: CN
Inventors: 王五星; 于敬军; 王德忍
Original assignee: Shenzhen Antmed Co ltd
Current assignee: Shenzhen Antmed Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-09-11
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a pressure measurement subassembly and have and create pressure sensor, wherein, this pressure measurement subassembly is used for having the pressure sensor of creating, the pressure measurement subassembly includes the casing, the casing is formed with pipeline channel, the inside chamber that holds that still is formed with of casing, the inner wall that holds the chamber is equipped with the mounting groove, the tank bottom wall of mounting groove is equipped with the connecting hole, the connecting hole with pipeline channel intercommunication, and the chip, the chip with the cell wall fixed connection of mounting groove, and be close to the connecting hole sets up. The utility model discloses pressure sensor's among the technical scheme chip improves the fixed efficiency of chip.

Description

Pressure testing assembly and invasive pressure sensor

Technical Field

The utility model relates to the technical field of medical equipment, in particular to pressure test subassembly and invasive pressure sensor who has this pressure test subassembly.

Background

The invasive pressure sensor is generally applied to operating rooms of hospitals, anesthesia departments, intensive care and the like, pressure test liquid flows inside the invasive pressure sensor, the tail end of the invasive pressure sensor is communicated with blood vessels of a human body, continuous dynamic monitoring is provided for the human body, various physiological parameters such as arterial pressure, central venous pressure, pulmonary artery pressure, left coronary artery pressure and the like of the blood vessels are directly obtained, and objective bases are provided for diagnosis, treatment and prognosis estimation of clinical diseases. The chip in the existing invasive pressure sensor is usually fixed on the inner wall of the shell through glue, the shell is not provided with a fixing structure, the chip is difficult to be fixed at a specified position, and the chip fixing efficiency is low. In addition, when the structure is used, the chip is easily influenced by an external signal line, and the accuracy of pressure testing is influenced.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a there is pressure test subassembly, aims at improving the fixed efficiency of chip.

In order to achieve the above object, the utility model provides a pressure test assembly for there is invasive pressure sensor, the pressure test assembly includes:

the pipeline connecting device comprises a shell, a connecting rod and a connecting rod, wherein a pipeline channel is formed in the shell, an accommodating cavity is formed in the shell, an installation groove is formed in the inner wall of the accommodating cavity, a connecting hole is formed in the bottom wall of the installation groove, and the connecting hole is communicated with the pipeline channel; and

the chip is fixedly connected with the wall of the mounting groove, and at least part of the chip extends into the pipeline channel from the connecting hole.

In an embodiment of the present invention, the mounting groove includes two opposite groove side walls, and two opposite side edges of the chip are respectively in interference fit with the two groove side walls.

In an embodiment of the present invention, the surface of the chip is provided with a protruding probe, and the probe penetrates through the connecting hole and extends into the pipeline channel.

The utility model discloses an embodiment, the casing includes first casing and second casing, first casing is equipped with pipeline passageway, first casing deviates from pipeline passageway's surface still is equipped with the mounting groove, the second casing is formed with the holding tank, first casing lid fits the holding tank, and sealed formation hold the chamber.

In an embodiment of the present invention, the first housing has a mounting hole, the outer sidewall of the second housing has a connecting buckle, and the connecting buckle is inserted into the mounting hole; or

The invasive pressure sensor further comprises a signal cable and an adapter, one end of the signal cable is connected with the chip, and the other end of the signal cable penetrates through the shell and is connected with the adapter.

In one embodiment of the present invention, the first housing includes a connecting plate, two side plates and a connecting pipe,

the connecting plate is provided with a length direction, and the mounting groove is arranged on the surface of the connecting plate and extends along the length direction of the connecting plate;

the two side plates are respectively connected to two side edges of the connecting plate extending along the length direction, the two side plates are respectively arranged at an angle with the connecting plate and are abutted against the outer side wall of the accommodating groove, the side plates are provided with the mounting holes, and the notch of the accommodating groove is abutted against the surface of the connecting plate;

the connecting pipe is convexly arranged on the surface of the connecting plate deviating from the mounting groove and extends along the length direction of the connecting plate, and the pipeline channel is formed inside the connecting pipe.

The utility model discloses an in the embodiment, each the curb plate is including the first curb plate and the second curb plate that are connected, a side of first curb plate with the connecting plate is connected, the second curb plate with first curb plate deviates from the side of connecting plate is connected, the second curb plate with first curb plate becomes angle setting, the mounting hole is located first curb plate.

The utility model discloses an in the embodiment, it still is equipped with line ball structure to hold the intracavity, line ball structure is fixed the signal cable, in order to prevent the signal cable drives the chip removes.

The utility model discloses an in the embodiment, the line ball structure includes protruding first preforming that is equipped with first housing face, the concave fixed slot that is equipped with of terminal surface of first preforming, the signal cable is worn to locate in the fixed slot, the protruding second preforming that is equipped with of second housing face, the second preforming is inserted and is located with the butt in the fixed slot the signal cable.

The utility model also provides an it has the wound pressure sensor, should have the wound pressure sensor still includes foretell pressure test subassembly.

The utility model discloses among the technical scheme, be equipped with pipeline channel on this pressure test subassembly, pipeline channel's one end intercommunication has the pressure test liquid of creating pressure sensor, and the other end intercommunication is by monitor person's blood vessel. The shell is internally provided with a containing cavity for fixing the chip, a mounting groove is arranged on the wall of the containing cavity, the bottom wall of the mounting groove is provided with a connecting hole communicated with the pipeline channel, and at least part of the chip extends into the pipeline channel from the connecting hole so as to detect the pressure change in the pipeline channel. Because the connecting hole is communicated with the interior of the pipeline channel, when the pressure testing device is used, the pressure testing liquid can fill the containing cavity through the connecting hole, so that the chip can detect pressure change signals in the pipeline channel and convert the pressure change signals into electric signals to be output, and blood pressure parameter values of a monitored person can be directly obtained. The utility model discloses among the technical scheme, owing to be equipped with the mounting groove in the casing of pressure test subassembly, when carrying out the chip installation, fix the cell wall of chip and mounting groove, so, can realize that the chip is fixing a position fast in the inside that holds the chamber to can fix the chip and firmly improve the fixed efficiency of chip and fixed stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a pressure testing assembly according to the present invention;

FIG. 2 is an exploded view of the pressure testing assembly of FIG. 1 from a perspective;

FIG. 3 is an exploded view of the pressure testing assembly of FIG. 1 from yet another perspective;

FIG. 4 is a cross-sectional view of the pressure testing assembly of FIG. 1;

the reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Pressure testing assembly	1137	Fixing hole
10	Shell body	115	Connecting pipe
				11	First shell	1151	First interface
111	Connecting plate	1153	Second is connected toMouth piece
				1111	Mounting groove	13	Second shell
1112	Connecting hole	131	Accommodating tank
				1113	The first pressing sheet	133	Connecting buckle
1114	Fixing groove	135	Second pressing sheet
				1115	Fixing plate	30	Chip and method for manufacturing the same
1116	Let a mouthful	31	Probe head
				113	Side plate	50	Adapter
1131	First side plate	70	Signal cable
				1133	Second side plate	90	Sealing rubber plug
1135	Mounting hole

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a pressure test subassembly 100.

Referring to fig. 1 to 4, the utility model provides a pressure test assembly 100 for there is invasive pressure sensor (not shown), wherein, this pressure test assembly 100 includes casing 10, casing 10 is formed with pipeline channel (not marking), casing 10 is inside still to be formed with and to hold the chamber (not marking), the inner wall that holds the chamber is equipped with mounting groove 1111, the tank bottom wall of mounting groove 1111 is equipped with connecting hole 1112, connecting hole 1112 with pipeline channel intercommunication, and chip 30, chip 30 with the cell wall fixed connection of mounting groove 1111, at least part of chip 30 certainly connecting hole 1112 stretches into in the pipeline channel.

The utility model relates to an among the technical scheme of an embodiment, be equipped with pipeline channel on this pressure test subassembly 100, pipeline channel's one end intercommunication pressure test liquid, other end intercommunication are by monitor person's blood vessel. The inside of casing 10 still is formed with the chamber that holds that is used for fixed chip 30, and set up mounting groove 1111 on the wall that holds the chamber, connecting hole 1112 communicating the sweetgum fruit passageway has been seted up to the tank bottom wall of mounting groove 1111, because connecting hole 1112 and pipeline passageway in intercommunication, during the use, pressure test liquid accessible connecting hole 1112 fill up and hold the chamber, chip 30 stretches into in the pipeline passageway in order to detect the pressure change in the pipeline passageway from connecting hole 1112 at least partly, chip 30 can be with the inside pressure change signal conversion of pipeline passageway electric signal, directly reachs monitored person's blood pressure parameter value. The utility model discloses among the technical scheme, owing to be equipped with mounting groove 1111 in pressure test assembly 100's casing 10, when carrying out the installation of chip 30, fix chip 30 with the cell wall of mounting groove 1111, mounting groove 1111 can not only play the effect of quick location, can also fix chip 30 more firmly, has firmly improved the fixed efficiency of chip 30 and fixed stability.

The invasive pressure sensor of the utility model also comprises a dropping device (not shown), a flushing valve (not shown), a tee joint (not shown), a pressure testing liquid and the like. Wherein, the liquid dropping device, the flushing valve, the pressure testing component and the tee joint are communicated in sequence by connecting pipes, and the liquid dropping device is used for puncturing the infusion device and enabling the pressure testing liquid in the infusion device to fill the whole pipeline system with the invasive pressure sensor. Wherein, the pressure test liquid can be normal saline or liquid medicine. The flush valve is arranged between the infusion bottle and the shell 10 and is used for flushing the inner wall of the pipeline of the invasive pressure sensor, removing air in the 115-way of the connecting pipe, controlling the flow rate of the pressure test solution and the like.

In general, the invasive pressure sensor is further provided with a tee (not shown) having one end connected to the conduit passage of the housing 10 and the other end connected to a pressure extension tube which is communicated with the blood vessel of the subject through an indwelling needle (not shown). Before the invasive pressure sensor is used, each component of the invasive pressure sensor needs to be detected, and for example, the connecting tube 115 connected between the components needs to be filled with a pressure testing solution, the internal air bubbles are removed, the chip 30 is connected to a monitor (not shown), and each parameter of the monitor is set to zero. The chip 30 collects the pressure change condition of the pressure test liquid in the pipeline and converts the pressure change condition into an electric signal, the signal cable 70 is connected with the chip 30 and transmits the pressure change electric signal output by the chip 30 to the monitoring instrument, and the monitoring instrument converts the pressure change electric signal into a visible waveform image for observation and statistics of medical personnel.

Referring to fig. 2 to 4, in an embodiment of the present invention, the mounting groove 1111 includes two opposite groove sidewalls, and two opposite sides of the chip 30 are respectively in interference fit with the two groove sidewalls.

The utility model discloses an among the technical scheme of an embodiment, when chip 30 and the cell wall of mounting groove 1111 fix, can be fixed with the tank bottom wall of mounting groove 1111, also can be fixed with the tank bottom wall of mounting groove 1111, can also be simultaneously all fixed with the groove lateral wall and the groove diapire of mounting groove 1111. Wherein, when the chip 30 is fixed with the cell wall of mounting groove 1111, can all be provided with the viscose at the groove diapire and the groove lateral wall of mounting groove 1111 to improve chip 30 stability. In this embodiment, the chip 30 and the groove side wall of the mounting groove 1111 are in interference fit, so that the stability of fixing between the chip 30 and the groove wall of the mounting groove 1111 can be improved, and the chip 30 and the mounting groove 1111 are prevented from moving after being fixed.

Referring to fig. 2 and 4, in an embodiment of the present invention, a probe 31 is protruded from a surface of the chip 30, and the probe 31 penetrates through the connection hole 1112 and extends into the pipeline channel.

The utility model discloses an among the technical scheme of an embodiment, the protruding probe 31 that is equipped with in surface of chip 30, probe 31 passes connecting hole 1112 and stretches into pipeline passageway, so, the condition that pipeline passageway internal pressure changes can directly be acquireed to probe 31, can improve the accuracy of pressure test subassembly 100.

Referring to fig. 1 to 4, in an embodiment of the present invention, the housing 10 includes a first housing 11 and a second housing 13, the first housing 11 is provided with the pipeline channel, the surface of the first housing 11 facing away from the pipeline channel is further provided with the mounting groove 1111, the second housing 13 is formed with a receiving groove 131, and the first housing 11 covers the receiving groove 131 and forms the receiving cavity in a sealing manner.

The utility model discloses an among the technical scheme of an embodiment, the material of first casing 11 is plastics to this plastics can be transparent material, in order to make things convenient for the inside to hold the chamber to observe. The material of the second housing 13 may be plastic. By providing the housing 10 in a structure including the first housing 11 and the second housing 13, it is possible to facilitate the processing of the mounting groove 1111 and also to facilitate the fixing of the chip 30 on the grass wall of the mounting groove 1111. The second housing 13 is formed with a receiving groove 131, and the first housing 11 and the second housing 13 are covered to seal the receiving groove 131 and form a receiving cavity. The first housing 11 and the second housing 13 may be connected and sealed by UV glue, or may be connected and sealed by welding, and the welding may be ultrasonic welding.

In some embodiments, in order to improve the stability after the first housing 11 is connected to the second housing 13, a mounting hole 1135 is further formed in the first housing 11, a connecting buckle 133 is convexly formed on an outer side wall of the second housing 13, and the connecting buckle 133 is inserted into the mounting hole 1135 after the first housing 11 is matched with the second housing 13. In this manner, the stability of the connection of the first housing 11 and the second housing 13 is also improved. It should be noted that the connecting buckles 133 are disposed on two opposite outer side walls of the receiving groove 131, and the mounting holes 1135 are also disposed on two opposite side edges of the first housing 11, so that the stress of the connecting buckles 133 is uniform. The number of the connecting buckles 133 and the number of the mounting holes 1135 may be two or four, and may be set according to specific requirements.

Referring to fig. 2 and 3, in an embodiment of the present invention, the first housing 11 includes a connection plate 111, two side plates 113, and a connection pipe 115, the connection plate 111 has a length direction, and the mounting groove 1111 is disposed on a surface of the connection plate 111 and extends along the length direction of the connection plate 111; the two side plates 113 are respectively connected to two side edges of the connecting plate 111 extending along the length direction, the two side plates 113 are respectively arranged at an angle with the connecting plate 111 and are abutted against the outer side wall of the accommodating groove 131, the side plates 113 are provided with the mounting holes 1135, and the notch of the accommodating groove 131 is abutted against the surface of the connecting plate 111; the connection pipe 115 is protruded from a surface of the connection plate 111 facing away from the mounting groove 1111 and extends along a length direction of the connection plate 111, and the pipeline passage is formed inside the connection pipe 115.

The utility model discloses an among the technical scheme of an embodiment, connecting plate 111, both sides board 113 and connecting pipe 115 are for moulding plastics integrated into one piece to improve the efficiency of processing, wherein, connecting plate 111's shape is roughly rectangle, and both sides board 113 is connected with connecting plate 111 length direction's both sides limit respectively. The two side plates 113 are disposed at an angle to the connecting plate 111, so that the first housing 11 can surround the notch of the receiving groove 131 of the second housing 13, and the stability of the connection between the first housing 11 and the second housing 13 is improved. In addition, the two side plates 113 are arranged at an angle with the connecting plate 111, so that the whole pressure testing assembly 100 can be conveniently fixed on the testing jig through the side plates 113. The utility model discloses a pipeline passageway among the technical scheme of an embodiment is protruding locating the connecting pipe 115 formation on connecting plate 111, and the first interface 1151 of connecting pipe 115 is arranged in being connected with the flushometer in pressure test subassembly 100, and second interface 1153 is used for being connected with the one end of three-way valve, the other end of three-way valve with by the blood vessel intercommunication of detection person.

Referring to fig. 2 and fig. 3, in an embodiment of the present invention, each of the side plates 113 includes a first side plate 1131 and a second side plate 1133 that are connected, a side of the first side plate 1131 is connected to the connecting plate 111, the second side plate 1133 is connected to a side of the first side plate 1131 that deviates from the connecting plate 111, the second side plate 1133 and the first side plate 1131 form an angle, and the mounting hole 1135 is formed in the first side plate 1131.

The utility model discloses an among the technical scheme, each curb plate 113 is angle setting including first curb plate 1131 and the second curb plate 1133 that is connected, first curb plate 1131 and second casing 13 fixed connection, second curb plate 1133 and first curb plate 1131 to be fixed in the test jig with whole casing 10 on, so that can provide the detection of continuation with inside chip 30 to human blood vessel. An included angle between the second side plate 1133 and the first side plate 1131 is an acute angle, and a side of the second side edge departing from the first side plate 1131 is arranged obliquely downward, so that the second side plate 1133 is conveniently inserted into a testing jig (not shown). In some embodiments, the second side plate 1133 further has a fixing hole 1137, and the second side plate can also be inserted into the fixing hole 1137 through a connector and fixed with the testing jig, so as to fix the pressure testing assembly 100.

Referring to fig. 1 to 4, in an embodiment of the present invention, the pressure testing assembly 100 further includes a signal cable 70, one end of the signal cable 70 is connected to the chip 30, and the other end thereof penetrates through the housing 10 and is connected to the adapter 50.

The utility model relates to an among the technical scheme of an embodiment, the one end and the chip 30 welded fastening of signal cable 70, the other end runs through casing 10 surface and is connected with adapter 50. Specifically, a fixing plate 1115 is disposed on one side of the connecting plate 111, a yielding hole 1116 is formed in the fixing plate 1115, and the signal cable 70 is disposed through the yielding hole 1116. In some embodiments, a sealing plug 90 is also disposed in the relief opening 1116 to seal the relief opening 1116. Thus, the sealing performance of the accommodating cavity can be guaranteed. The signal cable 70 transmits the signal of the pressure change of the pressure testing fluid in the pipeline collected by the chip 30 to the adapter 50, the adapter 50 is connected with the monitor, and the signal of the pressure change is displayed on the monitor in a waveform or digital form for the observation and statistics of the medical staff.

Referring to fig. 1 to 4, in an embodiment of the present invention, a wire pressing structure (not labeled) is further disposed in the accommodating cavity, and the wire pressing structure fixes the signal cable 70 to prevent the signal cable 70 from driving the chip 30 to move.

The utility model discloses an among the technical scheme of an embodiment, the effect of line ball structure is fixed the signal cable 70 between chip 30 and the casing 10, prevents that the removal of the signal cable 70 in the casing 10 outside from producing the influence to chip 30. Specifically, the wire pressing structure comprises a first pressing piece 1113 convexly arranged on the surface of the first shell 11, a fixing groove 1114 is concavely arranged on the end surface of the first pressing piece 1113, the signal cable 70 penetrates through the fixing groove 1114, a second pressing piece 135 is convexly arranged on the surface of the second shell 13, and the second pressing piece 135 is inserted into the fixing groove 1114 to abut against the signal cable 70. So, second preforming 135 and second preforming 135 can be fixed the signal cable 70 that stretches into the holding chamber inside, prevent that the shake of signal cable 70 from influencing the fixed stability of chip 30.

The utility model discloses still provide an invasive pressure sensor, this invasive pressure sensor includes above-mentioned pressure test subassembly 100, and the concrete structure of this pressure test subassembly 100 refers to above-mentioned embodiment, because this invasive pressure sensor has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressure testing assembly for use with an invasive pressure sensor, the pressure testing assembly comprising:

2. The pressure test assembly of claim 1 wherein said mounting slot includes two oppositely disposed slot sidewalls, and wherein two opposite sides of said chip are in interference fit with said slot sidewalls, respectively.

3. The pressure test assembly of claim 1, wherein a surface of the die is embossed with a probe extending through the attachment hole and into the conduit channel.

4. The pressure testing assembly of any one of claims 1-3, wherein the housing comprises a first housing and a second housing, the first housing is provided with the pipeline passage, the surface of the first housing facing away from the pipeline passage is further provided with the mounting groove, the second housing is formed with a receiving groove, and the first housing covers the receiving groove and is sealed to form the receiving cavity.

5. The pressure testing assembly of claim 4, wherein the first housing is provided with a mounting hole, and the outer side wall of the second housing is convexly provided with a connecting buckle, and the connecting buckle is inserted into the mounting hole; or

6. The pressure testing assembly of claim 5, wherein the first housing includes a connecting plate, two side plates, and a connecting tube,

7. The pressure testing assembly of claim 6, wherein each of the side plates includes a first side plate and a second side plate connected to each other, a side of the first side plate is connected to the connecting plate, the second side plate is connected to a side of the first side plate opposite to the connecting plate, the second side plate is disposed at an angle to the first side plate, and the mounting hole is disposed in the first side plate.

8. The pressure testing assembly of claim 5, wherein a cable pressing structure is further disposed in the accommodating cavity, and the cable pressing structure fixes the signal cable to prevent the signal cable from moving the chip.

9. The pressure testing assembly of claim 8, wherein the cable pressing structure comprises a first pressing piece protruding from the first housing surface, a fixing groove is concavely formed on an end surface of the first pressing piece, the signal cable is inserted into the fixing groove, and a second pressing piece protruding from the second housing surface is inserted into the fixing groove to abut against the signal cable.

10. An invasive pressure sensor, comprising a pressure testing assembly according to any one of claims 1 to 9.