CN216483661U

CN216483661U - Pressure testing assembly for invasive pressure sensor

Info

Publication number: CN216483661U
Application number: CN202123320032.4U
Authority: CN
Inventors: 黎子健; 黎萌; 林悦凤
Original assignee: Guangdong Baihe Medical Technology Co ltd
Current assignee: Guangdong Baihe Medical Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-10
Anticipated expiration: 2031-12-27

Abstract

The utility model provides a pressure test subassembly for having invasive pressure sensor, include: the blood pressure monitoring device comprises a shell, a sensor and a control circuit, wherein the shell is provided with an accommodating cavity, a chip for monitoring blood pressure is installed in the accommodating cavity, a connecting part is also arranged in the accommodating cavity, and the connecting part is provided with a connecting hole; a connecting column matched with the connecting hole is arranged on one side of the cover plate close to the shell, and the connecting column is inserted into the connecting hole so as to fix the cover plate on the shell; the side of casing is seted up and is used for connecting the signal cable of chip and pass the through wires hole of casing, be equipped with the fixed block that is used for pressing from both sides tight signal cable on the pore wall of through wires hole. The shell and the cover plate are connected and fastened, so that the whole structure is compact; set up the fixed block and can press from both sides tight signal cable more firmly, avoid signal cable and connect the chip of signal cable not hard up.

Description

Pressure testing assembly for invasive pressure sensor

Technical Field

The utility model relates to the technical field of medical equipment, specifically be a pressure test subassembly for having invasive pressure sensor.

Background

The invasive pressure sensor is widely applied to departments such as operating rooms of hospitals, anesthesia departments, intensive care units 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 can be provided for the human body, and objective basis is provided for diagnosis, treatment and prognosis estimation of diseases clinically. The assembly between current invasive pressure sensor casing and the apron is firm enough, leads to connecting the signal cable of chip not hard up easily, and the not hard up chip that can drive of signal cable removes, leads to the monitoring precision of chip to reduce, and monitoring data goes wrong, leads to medical personnel to make wrong judgement to patient's health, causes medical accident easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure test subassembly for having created pressure sensor, the casing and the apron assembly that aim at solving pressure test subassembly among the prior art are not firm enough, and the signal cable of connecting the chip is not hard up can drive the chip and remove, leads to the technical problem that chip monitoring accuracy reduces.

In order to achieve the above object, the utility model provides a pressure test subassembly for having invasive pressure sensor, include:

the blood pressure monitoring device comprises a shell, a sensor and a control circuit, wherein the shell is provided with an accommodating cavity, a chip for monitoring blood pressure is installed in the accommodating cavity, a connecting part is also arranged in the accommodating cavity, and the connecting part is provided with a connecting hole;

a connecting column matched with the connecting hole is arranged on one side of the cover plate close to the shell, and the connecting column is inserted into the connecting hole so as to fix the cover plate on the shell; the side of casing is seted up and is used for connecting the signal cable of chip and pass the through wires hole of casing, be equipped with the fixed block that is used for pressing from both sides tight signal cable on the pore wall of through wires hole. Fix the signal cable, avoid the not hard up chip removal of driving of signal cable.

Preferably, the fixing block is a toothed structure. The tooth-shaped structure clamps the signal cable, so that the signal cable is more firmly fixed on the shell.

Preferably, the shell and the cover plate are provided with wire pressing assemblies, and the wire pressing assemblies are used for fixing signal cables. The signal cable in the accommodating cavity is fixed, so that the chip cannot move, and the blood pressure data measured and calculated by the chip is ensured to have no error.

Preferably, the wire pressing assembly comprises a first supporting plate arranged in the accommodating cavity and a second supporting plate arranged on the cover plate, a groove is formed in the upper end face of the first supporting plate, the signal cable penetrates through the groove, and the second supporting plate abuts against the upper end face of the first supporting plate so as to fix the signal cable in the groove.

Preferably, the chips are connected with a plurality of signal cables simultaneously, and the grooves corresponding to the signal cables one to one are formed in the upper end face of the first supporting plate. And adjacent signal cables are isolated, so that the data output by the chip is prevented from being subjected to error due to signal interference.

Preferably, the cover plate is further provided with fixing columns, and the fixing columns abut against the chip. The chip is more firmly arranged in the accommodating cavity.

Preferably, the joint of the cover plate and the shell is provided with an adhesive layer. The stability of the cover plate installed on the shell is improved.

Preferably, the both sides of casing are equipped with the curb plate of outside extension, seted up the mounting hole on the curb plate, the connecting piece passes the mounting hole is fixed the pressure test subassembly to external test jig on. The side plate is fixed on the external test frame so as to fix the pressure test assembly on the external test frame.

Preferably, a connecting pipe is arranged on the shell, the connecting pipe is arranged at one end, far away from the chip, of the shell and extends along the length direction of the shell, a liquid channel is formed in the connecting pipe, a communicating groove is formed in the bottom of the accommodating cavity, the communicating groove is communicated with the liquid channel, and the sensing part of the chip extends into the liquid channel through the communicating groove. The sensing part of the chip can directly acquire the pressure change condition in the liquid channel, and the accuracy of monitoring data is improved.

The utility model relates to a pressure test subassembly for having created pressure sensor has following beneficial effect: the shell and the cover plate are connected and fastened, so that the whole structure is compact; set up the fixed block and can press from both sides tight signal cable more firmly, avoid signal cable and connect the chip of signal cable not hard up.

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 view of a housing and a cover plate of the present invention;

fig. 2 is a schematic perspective view of the housing of the present invention;

fig. 3 is a cross-sectional view of the housing of the present invention;

fig. 4 is a schematic perspective view of the cover plate of the present invention;

fig. 5 is a side view of the cover plate of the present invention;

fig. 6 is a bottom view of the cover plate of the present invention.

In the drawings: 1-shell, 11-accommodating cavity, 12-connecting part, 13-connecting hole, 14-side plate, 141-mounting hole, 15-connecting pipe, 151-liquid channel, 16-communicating groove, 17-threading hole, 18-fixing block, 2-cover plate, 21-connecting column, 22-fixing column, 31-first supporting plate, 311-groove and 32-second supporting plate.

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 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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating 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 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.

As shown in fig. 1-6, a pressure testing assembly for an invasive pressure sensor, comprising:

the blood pressure monitoring device comprises a shell 1, a sensor and a control circuit, wherein the shell 1 is provided with an accommodating cavity 11, a chip for monitoring blood pressure is installed in the accommodating cavity 11, a connecting part 12 is further arranged in the accommodating cavity 11, and the connecting part 12 is provided with a connecting hole 13;

a connecting column 21 matched with the connecting hole 13 is arranged on one side of the cover plate 2 close to the shell 1, and the connecting column 21 is inserted into the connecting hole 13 so as to fix the cover plate 2 on the shell 1; the side of the shell 1 is provided with a threading hole 17 for a signal cable connected with a chip to pass through the shell 1, and the hole wall of the threading hole 17 is provided with a fixing block 18 for clamping the signal cable.

Specifically, a pressure test subassembly for having wound pressure sensor, pressure test subassembly includes casing 1 and apron 2, and casing 1's inside is formed with holding chamber 11, installs the chip that is used for monitoring blood pressure in the holding chamber 11, still is equipped with connecting portion 12 in the holding chamber 11, and connecting portion 12 is the protruding cylindricality body of the opening part of the perpendicular to holding chamber 11 of bottom from holding chamber 11, connecting portion 12 and holding chamber 11 integrated into one piece, and the top surface of connecting portion 12 is less than the opening horizontal plane of holding chamber 11, has seted up connecting hole 13 on the top surface of connecting portion 12, and connecting hole 13 can not run through connecting portion 12. The cover plate 2 covers the accommodating cavity 11 to seal the accommodating cavity 11 and isolate the chip from the outside. The cover plate 2 is provided with a connecting column 21, and the connecting column 21 is inserted into the connecting hole 13 through interference fit so as to more firmly install the cover plate 2 on the shell 1. Still be connected with the signal cable on the chip, the blood pressure data transmission that the signal cable collected the chip is to external monitoring instrument on to make things convenient for medical personnel to observe and make statistics of. Therefore, the side of the casing 1 is further provided with a threading hole 17 for the signal cable to pass through the casing 1 and be connected with the chip. In order to prevent that the signal cable from removing the drive chip and removing, still be equipped with the fixed block 18 that is used for pressing from both sides tight signal cable on the pore wall of through wires hole 17, fixed block 18 equidistance distributes on the pore wall of through wires hole 17, leave certain gap between the adjacent fixed block 18, when casing 1 is fashionable with apron 2 lid, casing 1 and apron 2 can extrude the signal cable, extrude the signal cable toward the gap department between the adjacent fixed block 18, the lateral wall and the signal cable contact of fixed block 18, increase the area of contact of through wires hole 17 and signal cable, improve the frictional force between through wires hole 17 and the signal cable, thereby prevent to remove because of the signal cable, drive the condition that the chip removed, the data of the blood pressure of avoiding the chip to calculate has the error.

Further, the fixing block 18 is a tooth-shaped structure.

Specifically, the fixed block 18 is a tooth-shaped structure, and because the outer layer of the signal cable is soft rubber, the rubber is easily deformed when being extruded by an external force, and the fixed block 18 is a tooth-shaped structure, so that the top surface of the fixed block 18 is relatively sharp. When casing 1 and apron 2 lid closed, the top of fixed block 18 will contact with partial signal cable, because the skin of signal cable is soft rubber, consequently the top of fixed block 18 will be absorbed into the skin of signal cable, blocks the signal cable, but the fixed block 18 can not destroy the skin of signal cable, can not influence the function of signal cable conduction data, makes more firm being fixed on casing 1 of signal cable.

Furthermore, the shell 1 and the cover plate 2 are provided with wire pressing assemblies, and the wire pressing assemblies are used for fixing signal cables.

Specifically, still be equipped with the line ball subassembly on casing 1 and the apron 2, the line ball subassembly is used for further fixed signal cable that is located the pressure test subassembly, prevents that the signal cable that is located the pressure test subassembly outside from removing and leads to the signal cable in the test subassembly also to take place to remove, avoids the chip to produce the influence and takes place to remove, makes the blood pressure data that the chip measured and calculated have the error.

Further, the wire pressing assembly comprises a first supporting plate 31 arranged in the accommodating cavity 11 and a second supporting plate 32 arranged on the cover plate 2, a groove 311 is formed in the upper end surface of the first supporting plate 31, the signal cable penetrates through the groove 311, and the second supporting plate 32 abuts against the upper end surface of the first supporting plate 31 so as to fix the signal cable in the groove 311.

Specifically, the wire pressing assembly includes a first support plate 31 disposed in the accommodation chamber 11 and a second support plate 32 disposed on the cover plate 2. The upper end surface of the first supporting plate 31 is provided with a groove 311, and the signal cable is arranged in the groove 311 in a penetrating manner. Be equipped with second backup pad 32 on apron 2, second backup pad 32 is located first backup pad 31 directly over, second backup pad 32 butt is on the up end of first backup pad 31, and the butt is at the upper surface of signal cable, fix the signal cable in recess 311, thus, second backup pad 32 and second backup pad 32 can be fixed with the signal cable that stretches into the inside holding chamber 11, prevent that the signal cable that is located the pressure test subassembly outside from removing and leading to the signal cable that is located the pressure test subassembly to remove, influence the installation stability of chip.

Further, a plurality of signal cables are connected to the chip at the same time, and a plurality of grooves 311 corresponding to the plurality of signal cables one to one are formed on the upper end surface of the first supporting plate 31.

Specifically, because the chip can monitor data of a plurality of blood pressures, in order to meet the requirement of the chip for conducting signals, a plurality of signal cables are usually connected to the chip to assist the chip in conducting data. Therefore, if the wire pressing assembly fixes a plurality of signal cables in the groove 311, because a gap is left between the signal cables, the adjacent signal cables are easy to slide relative to each other, the adjacent signal cables are wound, signal interference occurs, and the data of the blood pressure measured and calculated by the chip conducted by the signal cables have errors. Therefore, the upper end surface of the first support plate 31 is provided with the grooves 311 corresponding to the plurality of signal cables one to one, that is, only one signal cable is accommodated in one groove 311, so that the influence of the contact of the adjacent signal cables on the transmission of the blood pressure data measured and calculated by the chip is avoided, and the error of the blood pressure data is caused. Also can let the signal cable more firm fix on the line ball subassembly, prevent that the signal cable from removing.

Further, a fixing column 22 is further arranged on the cover plate 2, and the fixing column 22 abuts against the chip.

Specifically, be equipped with fixed column 22 on apron 2, fixed column 22 is directly over the chip, and does not restrict the quantity of fixed column 22, and the quantity of fixed column 22 can set up according to actual conditions, and in this embodiment, the quantity of fixed column 22 is two, can fix the chip more stably, does not let the chip take place the displacement. When the shell was established to 2 lids of apron, fixed column 22 passed 11 butt in the up end of chip in the holding chamber 11, fixed the chip in holding chamber 11, made the chip closely laminate in the bottom of holding chamber 11, simultaneously because fixed column 22's restriction, the chip also can't remove, made the more stable installation of chip in holding chamber 11, test data is more accurate.

Furthermore, an adhesive layer is arranged at the joint of the cover plate 2 and the shell 1.

Specifically, the junction of apron 2 and casing 1 is equipped with the adhesive layer, improves the stability of apron 2 installation on casing 1, avoids the pressure test subassembly in the use, and apron 2 and casing 1 separation expose the chip to the external world, lead to measuring the data appearance error of the blood pressure that calculates.

Further, both sides of the housing 1 are provided with side plates 14 extending outwards, the side plates 14 are provided with mounting holes 141, and the connecting piece penetrates through the mounting holes 141 to fix the pressure testing assembly on an external testing jig.

Specifically, the both sides of casing 1 are equipped with outside extension's curb plate 14, and curb plate 14 and casing 1 are injection moulding integrated into one piece, and convenient processing, the shape of curb plate 14 are the rectangle, and curb plate 14 can peg graft on external test jig, installs the pressure test subassembly on the test jig. The connecting plate is further provided with a mounting hole 141, and a connecting piece can penetrate through the mounting hole 141 to more stably fix the pressure testing assembly on an external testing frame, so that the pressure testing assembly is fixed.

Further, a connecting pipe 15 is arranged on the shell 1, the connecting pipe 15 is arranged at one end, far away from the chip, of the shell 1 and extends along the length direction of the shell 1, a liquid channel 151 is formed in the connecting pipe 15, a communicating groove 16 is formed in the bottom of the accommodating cavity 11, the communicating groove 16 is communicated with the liquid channel 151, and the sensing part of the chip extends into the liquid channel 151 through the communicating groove 16.

Specifically, casing 1 keeps away from the one end of chip still is equipped with connecting pipe 15, connecting pipe 15 follows the length direction of casing 1 extends, and connecting pipe 15 and casing 1 integrated into one piece, convenient processing of moulding plastics. A liquid channel 151 is further arranged in the connecting pipe 15, one end of the liquid channel 151 is communicated with the pressure testing liquid, and the other end is communicated with the blood vessel of the monitored person. The bottom of the accommodating cavity 11 is further provided with a communicating groove 16, the communicating groove 16 is connected with the liquid channel 151, so that the accommodating cavity 11 is communicated with the liquid channel 151, the sensing part of the chip extends into the liquid channel 151 through the communicating groove 16, and the sensing part of the chip passes through the communicating groove 16 in an interference fit manner, so that the liquid in the liquid channel 151 is prevented from entering the accommodating cavity 11. Therefore, the sensing part of the chip can directly acquire the pressure change condition in the liquid channel 151, and the accuracy of the data monitored by the chip is improved. The chip can convert the pressure change signal of the monitored liquid channel 151 inside into an electric signal, directly obtain the physiological parameter value of the monitored person, and transmit the electric signal to the monitoring instrument through the signal cable to observe and count data of medical workers, so that the accuracy of the pressure testing assembly is improved.

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 an invasive pressure sensor, comprising:

the blood pressure monitoring device comprises a shell (1), a containing cavity (11) is formed in the shell, a chip for monitoring blood pressure is installed in the containing cavity (11), a connecting portion (12) is further arranged in the containing cavity (11), and a connecting hole (13) is formed in the connecting portion (12);

a connecting column (21) matched with the connecting hole (13) is arranged on one side, close to the shell (1), of the cover plate (2), and the connecting column (21) is inserted into the connecting hole (13) so as to fix the cover plate (2) on the shell (1); the side of casing (1) is seted up and is used for connecting the signal cable of chip and pass through threading hole (17) of casing (1), be equipped with on the pore wall of threading hole (17) and be used for pressing from both sides fixed block (18) of tight signal cable.

2. A pressure testing assembly for an invasive pressure sensor according to claim 1, wherein the fixing block (18) is a toothed structure.

3. A pressure testing assembly for invasive pressure sensors according to claim 1, wherein said housing (1) and said cover plate (2) are provided with a crimping assembly for fixing signal cables.

4. A pressure testing assembly for an invasive pressure sensor according to claim 3, wherein the pressure line assembly comprises a first supporting plate (31) arranged in the accommodating cavity (11) and a second supporting plate (32) arranged on the cover plate (2), the upper end surface of the first supporting plate (31) is provided with a groove (311), the signal cable is arranged in the groove (311) in a penetrating manner, and the second supporting plate (32) abuts against the upper end surface of the first supporting plate (31) to fix the signal cable in the groove (311).

5. A pressure test assembly for an invasive pressure sensor according to claim 4, wherein a plurality of signal cables are connected to the chip at the same time, and the upper end surface of the first support plate (31) is provided with a plurality of grooves (311) corresponding to the plurality of signal cables one by one.

6. Pressure testing assembly for invasive pressure sensors according to claim 1, characterized in that the cover plate (2) is further provided with fixing posts (22), the fixing posts (22) abutting on the chip.

7. A pressure testing assembly for an invasive pressure sensor according to claim 1, wherein the connection of the cover plate (2) to the housing (1) is provided with an adhesive layer.

8. The pressure testing assembly for the invasive pressure sensor according to claim 1, wherein two sides of the housing (1) are provided with outwardly extending side plates (14), the side plates (14) are provided with mounting holes (141), and a connecting member passes through the mounting holes (141) to fix the pressure testing assembly to an external testing frame.

9. The pressure testing assembly for the invasive pressure sensor according to claim 1, wherein a connecting pipe (15) is arranged on the housing (1), the connecting pipe (15) is arranged at one end of the housing (1) far away from the chip and extends along the length direction of the housing (1), a liquid channel (151) is formed in the connecting pipe (15), a communicating groove (16) is formed at the bottom of the accommodating cavity (11), the communicating groove (16) is communicated with the liquid channel (151), and the sensing portion of the chip extends into the liquid channel (151) through the communicating groove (16).