CN218098133U - Pressure sensor - Google Patents

Abstract

The utility model provides a pressure sensor, it includes: the pressure sensor comprises a pressure sensor chip, a metal tube and a connecting rod; the pipe wall of the metal pipe is provided with a slot which is communicated with the outside, the pressure sensor chip is arranged in the slot of the metal pipe, and the pressure sensor chip is connected with a receiving end in a wireless or wired mode so as to transmit the acquired pressure signal to the receiving end; the near end of the metal tube is connected with the far end of the connecting rod, and the near end of the metal tube is one end of the metal tube close to the connecting rod; the metal tube and the connecting rod are configured to be sequentially inserted into the channel of the guide sheath. The utility model discloses a pressure sensor can solve the problem that the pressure that measures among the current pressure measurement has the pressure state in postponing nature, the unable true reaction cavity.

Description

Pressure sensor

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a pressure sensor.

Background

Renal calculus is a common disease in urology surgery, and the incidence rate of renal calculus tends to increase. With the development of medical devices, the mainstream of treatment gradually changes from traditional surgery to minimally invasive surgery. The development of the novel ureter soft lens and related equipment also enables the application of the ureter soft lens technology in the aspect of treatment of the upper urinary calculus to be more and more extensive, and has the advantages of small wound, quick recovery of patients, high calculus removal rate and the like. Generally, when renal calculus lithotripsy is performed, renal pelvis flushing and perfusion are performed to keep a surgical visual field clear and flush out the lithotripsy, but the current standard operation still can cause the internal pressure of the renal pelvis to rise, so that perfusion liquid containing bacteria and endotoxin is absorbed by renal reflux, and postoperative fever and sepsis are caused. Therefore, the intra-renal pressure is continuously and effectively monitored, the intra-renal pressure of the renal pelvis is controlled to a certain level, the occurrence of renal reflux can be reduced, and the safety of the renal calculus minimally invasive surgery is improved.

The pressure monitoring unit is connected with the inner cavity of the human body and the outer pressure monitoring unit through the corresponding pressure measuring pipe in the prior art, when the pressure in the cavity is changed, the pressure in the cavity can not be timely fed back to the pressure monitoring unit through the pressure measuring pipeline, and the material of the pressure measuring pipeline and whether the flowing gas or the broken stone is influenced in the pipeline or not have an influence on the accuracy of measurement. Therefore, the pressure measured by the method not only has certain delay, but also cannot truly reflect the pressure state in the cavity.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pressure sensor to the pressure that measures among the solution current pressure measurement has the problem of the pressure state in postponing nature, the unable true reaction cavity.

The utility model provides a pressure sensor, it includes: the pressure sensor comprises a pressure sensor chip, a metal tube and a connecting rod;

the pipe wall of the metal pipe is provided with a slot, the slot is communicated with the outside, the pressure sensor chip is arranged in the slot of the metal pipe, and the pressure sensor chip is connected with a receiving end in a wireless or wired mode so as to transmit the acquired pressure signal to the receiving end;

the near end of the metal tube is connected with the far end of the connecting rod, and the near end of the metal tube is one end of the metal tube close to the connecting rod;

the metal tube and the connecting rod are configured to be sequentially inserted into the channel of the guide sheath.

Preferably, the method further comprises the following steps: the temperature sensor module is arranged in the groove of the metal pipe;

the temperature sensor module is connected with the receiving end in a wireless or wired mode so as to transmit the acquired temperature signals to the receiving end.

Preferably, the pressure sensor chip is packaged in the slot of the metal tube through soft glue;

when the temperature sensor module is included, the temperature sensor module is also packaged in the groove of the metal tube through soft glue.

Preferably, a gap is reserved between the soft glue package and the pressure sensor chip to communicate atmospheric pressure, so that the pressure sensor can carry out gauge pressure monitoring.

Preferably, the connecting rod is a conduit;

when the pressure sensor chip is connected with the receiving end in a wired mode, a connecting line between the pressure sensor chip and the receiving end is arranged in the conduit;

include the temperature sensor module, just the wired connection of temperature sensor module during the receiving terminal, the temperature sensor module with connecting wire between the receiving terminal also set up in the pipe, the structure is clean and tidy, has made things convenient for pressure sensor's insertion.

Preferably, the method further comprises the following steps: an interface housing connected to a proximal end of the connecting rod;

the receiving end includes: the circuit board is arranged in the interface shell, and the interface shell can well protect the circuit board.

Preferably, the interface of the interface shell is provided with a fool-proof structure, so that the misplug during use can be avoided.

Preferably, the method further comprises the following steps: the connecting rod pillar, the connecting rod pillar set up in the outer wall of the near-end of connecting rod can avoid the connecting rod because of local position stress concentration to the fracture connecting rod.

Preferably, the distal end of the metal tube is provided with a spherical soft rubber package, so that guidance of the pressure sensor during insertion can be ensured, and human tissues are prevented from being punctured.

Preferably, the outer wall of connecting rod is provided with the scale, can look over pressure sensor's depth of insertion, can discern whether pressure sensor reachs the assigned position at the insertion in-process.

The utility model provides a pressure sensor, the passageway through the guide sheath can reach preset position, and the true pressure of this position of direct measurement can feed back the true state of internal pressure.

The utility model discloses an in the alternative, can carry out real-time temperature measurement through the temperature sensor module, avoided the risk of losing temperature, guaranteed the safety of operation.

The utility model discloses an in the alternative, encapsulate pressure sensor chip and/or temperature sensor module in the tubular metal resonator through the flexible glue encapsulation, guaranteed that the chip is sealed, insulating, also guaranteed pressure monitoring's sensitivity simultaneously.

Drawings

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

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

fig. 2 is a schematic view of a metal tube according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a pressure sensor according to a preferred embodiment of the present invention;

fig. 4 is an internal schematic view of an interface housing according to a preferred embodiment of the present invention;

fig. 5 is a schematic diagram of a pressure sensor according to a preferred embodiment of the present invention;

description of reference numerals:

1-a pressure sensor chip, which is,

2-a metal tube, wherein the metal tube is a hollow tube,

21-grooving the steel plate in a groove,

3-a connecting rod is arranged at the upper part of the frame,

4-a temperature sensor module, wherein the temperature sensor module,

5-a connecting line is arranged on the base,

6-the interface of the outer casing of the interface,

7-a circuit board, wherein the circuit board is provided with a plurality of printed circuit boards,

8-connecting rod sheath.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper portion", "lower portion", "upper end", "lower surface", "upper surface", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of the indicated technical features is significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "plurality" means a plurality, e.g., two, three, four, etc., unless specifically limited otherwise.

In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected" and the like are to be understood broadly, and may for example be fixedly connected, detachably connected, or integrated; can be mechanically connected, electrically connected or can communicate with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

In one embodiment, a pressure sensor is provided, comprising: a pressure sensor chip 1, a metal tube 2, and a connecting rod 3, please refer to fig. 1 and fig. 2. The pipe wall of metal pipe 2 has fluting 21, and fluting 21 communicates with the external world, and pressure sensor chip 1 sets up in metal pipe 2's fluting 21, and pressure sensor chip 1 is wireless or wired connection receiving terminal to transmit the pressure signal who gathers to the receiving terminal. The near end of the metal tube 2 is connected with the far end of the connecting rod 3, and the near end of the metal tube 2 is the end of the metal tube 2 close to the connecting rod 3. The metal tube 2 and the connecting rod 3 are configured to be sequentially inserted into the channel of the guide sheath, so that the pressure sensor chip 1 is inserted into the distal end of the guide sheath, namely, a preset position in the body can be reached, the real pressure of the position is directly measured, and the real state of the pressure in the body can be fed back.

In addition, the piezometric tube adopted by the existing in-vitro monitoring technology is large, and can occupy an operation channel, so that the operation is difficult to carry out. The pressure sensor chip of the embodiment has small size, does not occupy excessive space and can ensure that the operation is smoothly carried out.

In one embodiment, to avoid the risk of temperature loss, the method further comprises: the temperature sensor module 4 is disposed in the slot of the metal tube, and the temperature sensor module 4 is connected to the receiving end wirelessly or by wire, so as to transmit the collected temperature signal to the receiving end, please refer to fig. 2.

In one embodiment, the temperature sensor module 4 may be a thermistor.

Practical normal atmospheric temperature normal saline fills at the operation in-process, and the internal temperature produces the condition of losing temperature easily, and above-mentioned embodiment can carry out real-time supervision to internal temperature, has guaranteed the security of operation.

In an embodiment, the receiving end can not only receive the electrical signals detected by the pressure sensor chip and the temperature sensor module, but also convert the electrical signals into a pressure value and a temperature value.

In one embodiment, the pressure sensor chip is encapsulated in the slot of the metal tube by soft glue. When the temperature sensor module is included, the temperature sensor module is also packaged in the groove of the metal tube through soft glue. The mode of flexible glue encapsulation makes pressure sensor chip, temperature sensor module can normally receive the effect of external pressure, temperature data, and the monitoring is more accurate.

In one embodiment, a gap is left between the soft glue package and the pressure sensor chip to communicate with atmospheric pressure, so that the pressure sensor can perform gauge pressure monitoring.

In one embodiment, the connecting rod is a conduit; when the pressure sensor chip is connected to the receiving end by wire, the connecting wire 5 between the pressure sensor chip and the receiving end is disposed in the conduit, please refer to fig. 2. The temperature sensor module is connected with the receiving end in a wired mode, and a connecting line between the temperature sensor module and the receiving end is also arranged in the conduit.

In one embodiment, the connecting wires are enameled wires, so that insulation among the connecting wires is realized.

In one embodiment, the method further comprises: a connector housing 6, the connector housing 6 is connected to the proximal end of the connecting rod 3, please refer to fig. 3. The receiving end includes: a circuit board 7, the circuit board 7 is disposed in the interface housing 6, please refer to fig. 4. The interface housing 6 may provide good protection for the circuit board 7.

In one embodiment, the interface of the interface housing 6 is provided with a fool-proof structure, so that the misplug during use can be avoided.

In an embodiment, the interface housing 6 is provided with a slot, so that the circuit board 7 can be sufficiently fixed, and is more stable.

In one embodiment, the method further comprises: a connecting rod protection tube 8, the connecting rod protection tube 8 is disposed on the outer wall of the proximal end of the connecting rod 3, please refer to fig. 5. When the connecting rod 3 is connected with the interface shell or the handle, the stress concentration of the connecting rod due to local positions can be avoided, so that the connecting rod is damaged.

In one embodiment, the spherical soft rubber package is arranged at the far end of the metal tube 2, so that guidance of the pressure sensor during insertion can be guaranteed, and human tissues are prevented from being stabbed.

In one embodiment, the outer wall of the connecting rod is provided with scales, so that the insertion depth of the pressure sensor can be checked, and whether the pressure sensor reaches a specified position or not can be identified in the insertion process. Preferably, the scale is annular scale, and the outer wall round of connecting rod all is provided with the scale promptly, can all look over the scale in all directions of connecting rod, looks over the convenience.

In one embodiment, the maximum pipe diameter size of the insertion part of the pressure sensor is smaller than 1.3mm, and the pressure sensor is more suitable for various clinical application scenes.

In one embodiment, the connecting rod is made of high-strength high polymer materials, so that the connecting rod is not easy to bend in the inserting process, the requirement for elastic bending in the urinary system is met, and the rigid support for the connecting rod can be met when the connecting rod is withdrawn from the guide sheath and kept in place.

In the description herein, references to the terms "an embodiment," "an example," "a specific implementation," "an example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the example or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.

Claims (10)

1. A pressure sensor, comprising: the pressure sensor comprises a pressure sensor chip, a metal tube and a connecting rod;

the pipe wall of the metal pipe is provided with a slot, the slot is communicated with the outside, and the pressure sensor chip is arranged in the slot of the metal pipe;

the pressure sensor chip is connected with a receiving end in a wireless or wired mode so as to transmit the acquired pressure signals to the receiving end;

the near end of the metal tube is connected with the far end of the connecting rod, and the near end of the metal tube is one end of the metal tube close to the connecting rod;

the metal tube and the connecting rod are configured to be sequentially inserted into the channel of the guide sheath.

2. The pressure sensor of claim 1, further comprising: the temperature sensor module is arranged in the groove of the metal pipe;

the temperature sensor module is connected with the receiving end in a wireless or wired mode so as to transmit the acquired temperature signals to the receiving end.

3. The pressure sensor of claim 2, wherein the pressure sensor chip is encapsulated in the slot of the metal tube by soft glue;

when the temperature sensor module is included, the temperature sensor module is also packaged in the groove of the metal tube through soft glue.

4. The pressure sensor of claim 3, wherein a gap is left between the soft glue package and the pressure sensor die to communicate atmospheric pressure.

5. The pressure sensor of claim 2, wherein the connecting rod is a conduit;

when the pressure sensor chip is connected with the receiving end in a wired mode, a connecting line between the pressure sensor chip and the receiving end is arranged in the conduit;

the temperature sensor module is connected with the receiving end in a wired mode, and a connecting wire between the temperature sensor module and the receiving end is also arranged in the guide pipe.

6. The pressure sensor of claim 1 or 2, further comprising: an interface housing connected to a proximal end of the connecting rod;

the receiving end includes: a circuit board disposed within the interface housing.

7. The pressure sensor of claim 6, wherein a fool-proof structure is provided at an interface of the interface housing.

8. The pressure sensor of claim 1 or 2, further comprising: a connecting rod pillar, the connecting rod pillar set in the outer wall of the proximal end of the connecting rod.

9. A pressure sensor as claimed in claim 1 or 2, wherein the distal end of the metal tube is provided with a spherical soft gel encapsulation.

10. A pressure sensor according to claim 1 or 2, wherein the outer wall of the connecting rod is provided with a scale.

Images