CN111374653A - Invasive blood pressure sensor's signal adapter and invasive blood pressure monitoring system - Google Patents

Abstract

The invention discloses a signal adapter of an invasive blood pressure sensor and an invasive blood pressure monitoring system, wherein the signal adapter comprises: the head comprises a first end face, a second end face and a side face connected with the first end face and the second end face, the first end face of the head is connected with the holding portion through the connecting portion, the communicating portion is arranged on the head and comprises a front vent hole, a side vent hole and a vent pipeline connected with the front vent hole and the side vent hole, the front vent hole is located on the first end face of the head, and the side vent hole is located on the side face of the head and is relatively close to the second end face of the head. The invention reduces the probability of pollution during the use process.

Description

Signal adapter for invasive blood pressure sensor and invasive blood pressure monitoring system

technical field

The invention relates to the technical field of medical devices, in particular to a signal adapter of an invasive blood pressure sensor and an invasive blood pressure monitoring system.

Background technique

According to the relevant regulations of medical device standards, medical devices need to have good appearance and structural characteristics to facilitate cleaning and disinfection operations and reduce the risk of secondary infection of patients in medical places.

However, the ventilation tube of the signal adapter of the current invasive blood pressure transducter (IBPtransducter) is a slender ventilation hose, which is wrapped in the signal adapter. It is connected to the sensor air pressure calibration channel, and its air outlet is exposed outside the signal adapter. The air inlet and the air outlet are basically straight through. The air outlet of the ventilation hose is close to the holding part of the signal adapter, which is very easy to use. contaminated in the process. In addition, because the ventilation tube of the signal adapter is thin and long, and the diameters of the air outlet and the air inlet are small, it is difficult to effectively clean the interior of the ventilation tube, which increases the risk of secondary infection to the patient. probability.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to reduce the chance of being contaminated during use.

Another object of the present invention is to reduce the difficulty of cleaning the communication part, so as to reduce the risk of secondary infection to the patient.

In order to achieve the above object, the present invention is realized through the following technical solutions:

A signal adapter for an invasive blood pressure sensor, comprising: a head, a connecting part, a holding part and a communicating part, the head has a first end face, a second end face and a connection connecting the first end face and the second end face On the side, the first end face of the head is connected with the gripping part through the connecting part, and the connecting part is arranged on the head; the connecting part includes a front vent hole, a side vent hole and a connecting part. The ventilation duct of the front ventilation hole and the side ventilation hole, the front ventilation hole is located on the first end surface of the head, and the side ventilation hole is located on the side surface of the head and is relatively close to the first end of the head. Two end faces.

Optionally, the front ventilation hole is a square hole, the width of the front ventilation hole is 3 mm to 7 mm, and the length of the front ventilation hole is 3 mm to 8 mm; The diameter of the front vent hole is 3 mm to 7 mm.

Optionally, the side ventilation hole is a square hole, the length of the side ventilation hole is 2 mm to 6 mm, and the width is 0.8 mm to 1.5 mm; or, the side ventilation hole is a round hole, and the side ventilation hole is a The diameter is 2mm to 6mm.

Optionally, calibration gas enters from the front vent, flows through the vent duct and communicates with the outside atmosphere through the side vent.

Optionally, the included angle between the front vent hole and the side vent hole ranges from 85 degrees to 95 degrees.

Optionally, the length of the communicating portion ranges from 14 mm to 19 mm.

Further, the signal adapter of the invasive blood pressure sensor also includes: a plurality of socket terminals, the socket terminals are used to transmit the signal of the invasive blood pressure sensor, and one end of the wire runs through the connection part and the grip. The part is connected with the socket terminal, the other end of which is exposed outside the holding part, and is connected with a plug for connecting with the monitor.

Further, the signal adapter of the invasive blood pressure sensor further comprises: an annular groove arranged on the outside of the head, and a sealing structure arranged in the annular groove; the sensor of the head and the blood pressure sensor The joint cover is plugged and connected, and the sealing structure is located between the sensor joint cover and the head, and plays a sealing role.

On the other hand, the present invention also provides an invasive blood pressure monitoring system, comprising: a signal adapter of an invasive blood pressure sensor, a pressure measurement pipeline, an arterial indwelling tube, a blood pressure sensor, a three-way valve, a flushing device and a monitor; The first path of the three-way valve is connected to one end of the pressure measurement pipeline, and the other end of the pressure measurement pipeline is communicated with the arterial indwelling tube, and the arterial indwelling tube is used to indwell the artery during blood pressure detection. ; the second path of the three-way valve is connected with the invasive blood pressure sensor, and the third path of the three-way valve is connected with the flushing device; the invasive blood pressure sensor is provided with a sensor joint cover. The plug of the signal adapter connected to the wire exposed outside the grip is connected to the monitor; the head of the signal adapter is plug-and-pull connected to the sensor connector housing.

Further, when blood pressure is monitored clinically, the second path of the three-way valve is closed, and the first and third paths of the three-way valve are turned on. The invasive blood pressure sensor performs blood pressure monitoring, and the detected blood pressure data is real-time. Displayed by the monitor; after a period of detection, the first and third paths of the three-way valve are closed, the second path of the three-way valve is turned on, and the flushing device flushes the arterial indwelling tube, Blood pressure monitoring was then repeated.

Compared with the prior art, the present invention reduces the probability of contamination during use by moving the side vent holes of the signal adapter away from the holding portion of the signal adapter. Further, the diameters of the side vent holes and the front vent holes of the signal adapter are increased, and the length of the communication part of the signal adapter is reduced, so that the cleaning difficulty of the communication part can be reduced, thereby reducing the secondary infection to the patient. probability of risk.

Description of drawings

1 is a schematic three-dimensional structure diagram of a signal adapter of an invasive blood pressure sensor in the prior art;

2 is a schematic diagram of the path of the calibration gas connected to the ambient atmosphere after the signal adapter of the prior art invasive blood pressure sensor is connected to the sensor joint cover and the calibration gas is passed into it;

3 is a schematic three-dimensional structural diagram of a signal adapter of an invasive blood pressure sensor according to an embodiment of the present invention;

FIG. 4 is a partial enlarged structural schematic diagram of a signal adapter of an invasive blood pressure sensor provided by an embodiment of the present invention;

5 is a schematic cross-sectional structural diagram of the signal adapter of the invasive blood pressure sensor provided by an embodiment of the present invention after the sensor connector cover is connected;

FIG. 6 is a partially enlarged schematic cross-sectional structural diagram of the signal adapter of the invasive blood pressure sensor connected to the connector housing of the invasive blood pressure sensor according to an embodiment of the present invention.

Description of reference numbers:

In Figures 1 and 2:

10-head, 11-connection, 12-grip, 100-vent hose, 101-inlet, 102-outlet, 103-wire, 20-sensor connector housing, 200-calibration gas;

In Figures 3 to 6:

110-head, 111-connection, 112-grip, 1101-front vent, 1102-side vent, 1104-first socket terminal, 1105-second socket terminal, 1106-third socket Terminals, 1107 - Fourth Slot Terminal, 2000 - Calibration Gas, 210 - Sensor Connector Housing, 1107 - Sealing Structure, 1103 - Wire, 1200 - First End, 1201 - Side, 1202 - Second End.

Detailed ways

As described in the background art, the signal adapter of the current invasive blood pressure sensor has the problems that it is not easy to clean and is easily contaminated during use. The inventor found that this is because the signal adapter of the current invasive blood pressure sensor The ventilation tube of the connector is a slender ventilation hose. Specifically, as shown in FIG. 1 and FIG. 2 , the signal adapter of this invasive blood pressure sensor includes: a head 10 , a connection part 11 , a grip part 12 and ventilation A hose 100, the ventilation hose 100 runs straight through the head 10, the connecting part 11 and the grip part 12, wherein the ventilation hose 100 includes an air inlet 101 and an air outlet 102, the air inlet 101 is disposed at the first end face of the head 10 , and the air outlet 102 is close to the second end face of the grip portion 12 (the left side in FIG. 1 is the first end, and the right side is the second end). The head 10 is also provided with a socket terminal and a wire 103 connected to the socket terminal for transmitting the signal of the invasive blood pressure sensor to the monitor connected thereto. Referring to FIG. 2 , the head 10 is plugged and connected to the sensor connector housing 20 of the blood pressure sensor, and the calibration gas 200 flowing through the sensor connector housing 20 enters from the air inlet 100 of the ventilation hose 100 , It flows through the ventilation hose 100 and is discharged from the air outlet 102 of the ventilation hose 100 . Since the air outlet 102 of the ventilation hose 100 is close to the holding part 12 of the signal adapter, it is very easy to be contaminated during use. In addition, since the ventilation hose 100 of the signal adapter is thin and long, and the diameters of the air outlet 101 and the air inlet 102 are small, it is difficult to effectively clean the inside of the ventilation hose 100, which inevitably increases the The chance of putting the patient at risk of secondary infection.

Based on the above research, an embodiment of the present invention provides a signal adapter for an invasive blood pressure sensor, which keeps the side vent hole of the signal adapter away from the holding portion of the signal adapter, so as to solve the problem that it is easily damaged during use. pollution problem. Further, in the embodiment of the present invention, the diameters of the side vent holes and the front vent holes of the signal adapter are increased, and the length of the communication part of the signal adapter is reduced, so as to solve the problem of difficulty in cleaning the communication part and increase the risk of secondary infection to the patient. question of probability.

Specific embodiments of the present invention will be described in more detail below with reference to FIGS. 3 to 6 . The advantages and features of the present invention will become apparent from the following description and claims. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

Specifically, as shown in FIG. 3 , the signal adapter of the invasive blood pressure sensor provided in this embodiment includes a head 110 , a connecting portion 111 and a gripping portion 112 , and the head 110 is connected to the gripping portion through the connecting portion 111 . part 112 is connected. Continuing to refer to FIG. 3 , the signal adapter of the invasive blood pressure sensor further includes a communication part provided on the head 110 , the communication part includes the front vent hole 1101 and the side vent hole 1102 and is connected to the front vent hole 1101 and side vents 1102 ventilation ducts (not numbered in Figure 3). The head 110 includes a first end surface 1200 , a second end surface 1202 , and a side surface 1201 connecting the first end surface 1200 and the second end surface 1202 . The front vent hole 1101 is located on the first end surface 1200 of the head 110 , and the side vent hole 1102 is located on the side surface 1201 of the head 110 , and is relatively close to the second end surface 1202 of the head 110 , namely , the distance between the side vent hole 1102 and the second end surface 1202 is relatively short, and the distance from the first end surface 1200 is relatively far. Alternatively, the side vent hole 1102 is located at the intersection of the side surface 1201 of the head 110 of the sealing structure 1107 and the second end surface 1202 .

Wherein, the front vent holes 1101 and the side vent holes 1102 are square holes, round holes or oval holes, but should not be limited thereto, and may also be other shapes combined with square holes, round holes or oval holes.

When the front ventilation hole 1101 is a square hole, the width a of the front ventilation hole 1101 is 3mm-7mm, and the length b of the front ventilation hole 1101 is 3mm-8mm; or, the front ventilation hole 1101 is a circle In the case of a hole, the diameter of the front ventilation hole 1101 is 3 mm˜7 mm. When the side ventilation hole 1102 is a square hole, the length of the side ventilation hole 1102 is 2mm-6mm, and the width is 0.8mm-1.5mm; or, the side ventilation hole 1102 is a round hole, and the side ventilation hole 1102 The diameter is 2mm ~ 6mm.

It should be noted that the meaning of "hole" in this article refers to a two-dimensional concept, which is equivalent to the meaning of "plane opening".

The calibration gas 2000 enters from the front vent 1101 , flows through the vent duct and communicates with the outside atmosphere through the side vent 1102 . The included angle between the front vent hole 1101 and the side vent hole 1102 ranges from 85 degrees to 95 degrees, for example. When the included angle between the front vent hole 1101 and the side vent hole 1102 is 90 degrees, the communicating portion is L-shaped as a whole, and the length of the communicating portion ranges from 14 mm to 19 mm, for example.

The material of the head 110 is, for example, polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), K resin, acrylic-butadiene-styrene (ABS), Polycarbonate (PC), Polytetrafluoroethylene (PTFE). In this embodiment, the injection molding process is adopted, so that the communication part and the head 110 are designed integrally, replacing the structure of the ventilation hose in the prior art, which omits the structure of the signal adapter of the invasive blood pressure sensor, which is beneficial to The preparation process of the signal adapter is simplified, and the manufacturing cost is reduced.

As shown in FIG. 3 and FIG. 4 , the head 110 is further provided with at least one socket terminal for transmitting the signal of the invasive blood pressure sensor to the monitor connected thereto. In this embodiment, the head 110 is provided with four socket terminals, which are a first socket terminal 1104, a second socket terminal 1105, a third socket terminal 1106 and a fourth socket terminal 1107, respectively. The first slot terminal 1104 and the second slot terminal 1106 are arranged close to the front vent hole 1101, and the second slot terminal 1105 and the fourth slot terminal 1107 are arranged away from the front vent hole 1101; it should be understood that, The present invention does not limit the quantity and position of the slot terminals, and can adaptively adjust the quantity and position of the slot terminals according to actual signal transmission requirements.

As an example, the signal adapter of the invasive blood pressure sensor further includes a wire 1103, one end of which runs through the connection part 111 and the grip part 112 and the first socket terminal 1104, the second socket terminal 1105 and the third socket terminal 1104. The socket terminal 1106 is connected, and the other end thereof is exposed outside the holding portion 112 . Further, the signal adapter of the invasive blood pressure sensor further includes a plug (not shown in the figure), and the plug is connected to the wire 1103 exposed outside the grip portion 112 for connection with the monitor. The first socket terminal 1104 and the fourth socket terminal 1107 are used to supply power to the invasive blood pressure sensor. The second socket terminal 1105 and the third socket terminal 1106 are used to transmit the electrical signal generated by the invasive blood pressure sensor according to the blood pressure value to the monitor.

5 is a schematic cross-sectional structural diagram of the signal adapter of the invasive blood pressure sensor provided by an embodiment of the present invention after the sensor connector cover is connected. As shown in FIGS. 3 to 5 , the head 110 of the signal adapter and the sensor connector cover 210 of the blood pressure sensor are connected by plugging and unplugging, and the air pressure calibration channel 2010 provided inside the sensor connector cover 210 is connected to the The front vent hole 1101 is connected, and when the head 110 of the signal adapter is connected to the sensor connector housing 210 provided with the blood pressure sensor, the first socket terminal 1104, the second socket terminal 1105 and the first socket terminal 1104 The three-slot terminal 1106 is also connected to a signal transmission pin provided by the sensor, for transmitting the signal of the sensor to the monitor, and the monitor displays the signal of the sensor.

FIG. 6 is a partially enlarged cross-sectional structural diagram of the signal adapter of the invasive blood pressure sensor provided by an embodiment of the present invention after the signal adapter is connected to the sensor connector housing. As shown in FIGS. 3-6 , the head 110 of the signal adapter further includes a sealing structure 1107 , the sealing structure 1107 is, for example, a rubber ring, and the sensor joint cover 210 is sleeved on the head Outside 110, the sealing structure 1107 is located between the sensor connector housing 210 and the head 110, and plays a sealing role. Further, the outer side of the head 110 is provided with an annular groove (not numbered in the figure) for accommodating the sealing structure 1107 , and the annular groove is close to the second end surface 1202 of the head 110 . The calibration gas 2000 enters from the front vent 1101 , flows through the vent duct and communicates with the outside atmosphere through the side vent 1102 . As an example, the side vent hole 1102 needs to be located on the side surface 1201 of the head 110 between the first end surface 1200 and the sealing structure 1107 to ensure that the calibration gas 2000 can pass through the front The air hole 1101 enters, flows through the ventilation duct and communicates with the external atmosphere through the side ventilation hole 1102 .

In this embodiment, the side vent hole of the signal adapter is kept away from the holding part of the signal adapter, so as to prevent it from being polluted during use, and the gap between the side vent hole and the front vent hole of the signal adapter is increased. Diameter size (that is, the length and width when the front vent and the test vent are square, or the diameter when the front vent and the test vent are round), reduce the length of the connecting part of the signal adapter , which makes it easy to clean the communication part, and reduces the probability of bringing the risk of secondary infection to the patient.

Based on the above embodiment, the embodiment of the present invention further discloses an invasive blood pressure monitoring system, the invasive blood pressure monitoring system includes an invasive blood pressure sensor and a signal adapter, and the signal adapter is, for example, mentioned in the above embodiment Structure. Further, the invasive blood pressure monitoring system further includes a pressure measurement pipeline, an arterial indwelling tube, a three-way valve, a flushing device and a monitor. The first path of the three-way valve is connected to one end of the pressure measurement pipeline, and the other end of the pressure measurement pipeline is communicated with the arterial indwelling tube, and the arterial indwelling tube is used to be indwelled in the artery during blood pressure detection. Inside. The second path of the three-way valve is connected with the invasive blood pressure sensor. The third path of the three-way valve is connected with the flushing device.

With reference to FIGS. 3-6 , the invasive blood pressure sensor is provided with a sensor connector housing 210 . The plug of the signal adapter connected to the wire 1103 exposed outside the holding portion 112 is connected to the monitor. The head 110 of the signal adapter is plugged and connected to the sensor connector housing 210 .

When the medical staff connects the head of the signal adapter with the sensor connector housing, the medical staff's hand holds the holding part of the signal adapter, and because the side of the signal adapter in the above embodiment The vent hole is far away from the holding part of the signal adapter, so it is not easy to contaminate the signal adapter during this process.

During clinical blood pressure monitoring, the second path of the three-way valve is closed, and the first and third paths of the three-way valve are connected. The invasive blood pressure sensor performs blood pressure monitoring, and the detected blood pressure data passes through the The monitor displays; after a period of detection, the first and third channels of the three-way valve are closed, the second channel of the three-way valve is turned on, and the flushing device flushes the arterial indwelling tube, and then repeats the procedure. Blood pressure monitoring.

The above are only preferred embodiments of the present invention, and do not have any limiting effect on the present invention. Any person skilled in the art, within the scope of not departing from the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, all belong to the technical solution of the present invention. content still falls within the protection scope of the present invention.

Claims (10)

1. A signal adapter for an invasive blood pressure sensor, comprising: a head, a connecting portion, a gripping portion and a communicating portion, the head having a first end face, a second end face and a connection between the first end face and the second end face The side surface of the end face, the first end face of the head is connected with the gripping part through the connecting part, and the communicating part is arranged on the head; a side vent hole and a vent duct connecting the front vent hole and the side vent hole, the front vent hole is located on the first end face of the head, the side vent hole is located on the side of the head and is relatively close the second end face of the head. 2 . The signal adapter of an invasive blood pressure sensor according to claim 1 , wherein the front vent hole is a square hole, the width of the front vent hole is 3 mm to 7 mm, and the length of the front vent hole is 3 mm to 7 mm. 3 . Alternatively, the front ventilation hole is a circular hole, and the diameter of the front ventilation hole is 3 mm to 7 mm. The signal adapter of the invasive blood pressure sensor according to claim 1 or 2, wherein the side vent hole is a square hole, the length of the side vent hole is 2mm～6mm, and the width is 0.8mm～ 1.5mm; or, the side vent hole is a round hole, and the diameter of the side vent hole is 2mm˜6mm. 4. The signal adapter of the invasive blood pressure sensor according to claim 1 or 2, wherein the calibration gas enters from the front vent hole, flows through the vent pipe, passes through the side vent hole and the external atmospheric environment Connected. The signal adapter of the invasive blood pressure sensor according to claim 1 or 2, wherein the angle between the front vent hole and the side vent hole ranges from 85 degrees to 95 degrees. 6 . The signal adapter for an invasive blood pressure sensor according to claim 3 , wherein the length of the communicating portion ranges from 14 mm to 19 mm. 7 . 7. The signal adapter for the invasive blood pressure sensor according to claim 1, further comprising: a plurality of socket terminals, the socket terminals are used to transmit the signals of the invasive blood pressure sensor, the wires, the One end is connected to the socket terminal through the connecting part and the holding part, and the other end is exposed outside the holding part, and is connected with a plug for connecting with the monitor. 8 . The signal adapter for an invasive blood pressure sensor according to claim 1 , further comprising: an annular groove disposed outside the head portion, and a sealing structure disposed in the annular groove; 8 . The head is plugged and connected with the sensor joint cover of the blood pressure sensor, and the sealing structure is located between the sensor joint cover and the head, and plays a sealing role. 9. An invasive blood pressure monitoring system, characterized in that it comprises: the signal adapter of the invasive blood pressure sensor according to any one of claims 1 to 8, a pressure measurement pipeline, an arterial indwelling tube, a blood pressure sensor, three A through valve, a flushing device and a monitor; the first path of the three-way valve is connected to one end of the pressure measurement pipeline, the other end of the pressure measurement pipeline is communicated with the arterial indwelling tube, and the artery indwelling The tube is indwelled in the artery for blood pressure detection; the second path of the three-way valve is connected to the invasive blood pressure sensor, and the third path of the three-way valve is connected to the irrigation device; the invasive blood pressure The sensor is provided with a sensor joint cover, the plug of the signal adapter connected by the wires exposed outside the grip is connected to the monitor; the head of the signal adapter is inserted into the sensor joint cover unplug the connection. 10 . The invasive blood pressure monitoring system of an invasive blood pressure sensor according to claim 9 , wherein when monitoring blood pressure clinically, the second path of the three-way valve is closed, and the first path and the second path of the three-way valve are closed. 11 . Three-way conduction, the invasive blood pressure sensor performs blood pressure monitoring, and the detected blood pressure data is displayed by the monitor in real time; after a period of detection, the first and third channels of the three-way valve are closed, and the three-way valve is closed. The second path of the valve is turned on, the flushing device flushes the arterial indwelling tube, and then the blood pressure monitoring is performed again.

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