Pump pipe pressure sensing device and medical equipment

Abstract

The utility model discloses a pump pipe pressure sensing device and medical equipment. The pump pipe pressure sensing device comprises a first mounting block and a second mounting block which are oppositely arranged, the pressure sensor is arranged on the first mounting block, a first gap is formed between the pressure sensor and the second mounting block, and the pressure sensor is used for the liquid path module to detect the pressure of liquid flowing in the liquid path module; at least one of the first mounting block and the second mounting block is provided with a jacking part, so that at least one of the pressure sensor and the liquid path module is adjustable in position along a preset direction, the pressure sensor and the liquid path module are attached and contacted, and the preset direction is a direction in which the pressure sensor and the liquid path module are close to each other. The position of at least one of the pressure sensor and the liquid path module can be adjusted in the preset direction through the jacking piece, the pressure sensor and the liquid path module are always attached and contacted by adjusting the position of the pressure sensor and / or the liquid path module, and the detection accuracy and reliability of the pressure sensor can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a pump tube pressure sensing device. Furthermore, this utility model also relates to a medical device including the aforementioned pump tube pressure sensing device. Background Technology

[0002] Some medical devices, such as expansion pumps, are equipped with peristaltic pumps that can pump fluid into the patient's body cavity through pump tubing to expand the cavity and create a stable visual space for doctors to perform surgery.

[0003] In order to accurately control the pressure within the body cavity, the expansion pump includes a pressure sensing device to detect the liquid pressure in the pump tubing, so as to monitor the pressure within the patient's body cavity in real time.

[0004] However, currently, pressure sensing devices in related technologies suffer from inaccurate pressure detection due to differences in component precision or installation precision. In particular, when the liquid pressure in the pump pipe is low, the pressure sensor cannot be properly attached to the liquid circuit module where the pressure to be detected, and the pressure sensing device cannot accurately measure the liquid pressure in the pump pipe.

[0005] Therefore, how to improve the accuracy of pressure detection by pump pipe pressure sensing devices is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a pump pipe pressure sensing device that can improve the accuracy of its pressure detection.

[0007] Another objective of this invention is to provide a medical device that includes the above-mentioned pump tube pressure sensing device, wherein the pump tube pressure sensing device has high accuracy in detecting pressure.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A pump pipe pressure sensing device, comprising:

[0010] The first and second mounting blocks are set relative to each other;

[0011] A pressure sensor is disposed on the first mounting block and has a first gap between it and the second mounting block for accommodating a liquid circuit module to detect the pressure of the liquid flowing therein;

[0012] At least one of the first mounting block and the second mounting block is provided with a top pressure member, so that the position of at least one of the pressure sensor and the liquid circuit module is adjustable along a preset direction so that the two are in close contact. The preset direction is the direction in which the pressure sensor and the liquid circuit module approach each other.

[0013] Optionally, the pressing member includes: an adjusting member movably connected to the first mounting block and / or the second mounting block; or,

[0014] An elastic element disposed on the first mounting block and / or the second mounting block, the elastic element being used to provide an elastic force to the fluid circuit module along the preset direction; or...

[0015] A first adjusting shim is provided between the first mounting block and the pressure sensor and / or the second mounting block and the hydraulic module, wherein the first adjusting shim may be one or more.

[0016] Optionally, the pressure sensor is at least partially embedded in the first mounting block.

[0017] Optionally, the top pressure member includes a first adjusting nut that is threadedly connected to the second mounting block, the first adjusting nut passing through the second mounting block along the preset direction.

[0018] Optionally, the top pressure member further includes a second adjusting shim disposed between the pressure sensor and the first mounting block, wherein the second adjusting shim may be one or more.

[0019] Optionally, it also includes a retaining ring, in which the pressure sensor is mounted, and the retaining ring is connected to the first mounting block.

[0020] Optionally, one end of the fixing ring is provided with a radially inwardly protruding limiting flange ring, and the pressure sensor includes a body part and a first limiting boss arranged in a stepped manner along the axis. The body part is located inside the fixing ring, and the first limiting boss extends out of the limiting flange ring.

[0021] Optionally, the pressure sensor has a first diaphragm core on the side facing the second mounting block for contact with the liquid circuit module.

[0022] Optionally, one of the pressure sensor and the first mounting block is provided with a first protrusion, and the other is provided with a first groove for engaging and limiting the first protrusion; and / or,

[0023] One of the liquid circuit module and the first mounting block is provided with a second protrusion, and the other is provided with a second groove for cooperating with and limiting the second protrusion;

[0024] And / or, one of the fluid circuit module and the second mounting block is provided with a third protrusion, and the other is provided with a third groove for engaging and limiting the third protrusion.

[0025] A medical device comprising any one of the above-mentioned pump tube pressure sensing devices.

[0026] The pump pipe pressure sensing device provided by this utility model has the following beneficial effects:

[0027] When the liquid circuit module is inserted into the first gap, the pressure sensor is in contact with the liquid circuit module. The pressure sensor can detect the pressure of the liquid flowing inside the liquid circuit module, thereby enabling real-time monitoring of the liquid pressure inside the liquid circuit module for precise control of the liquid pressure.

[0028] Since at least one of the first mounting block and the second mounting block is provided with a pressure member, the position of at least one of the pressure sensor and the liquid circuit module can be adjusted along a preset direction by using the pressure member. By adjusting the position of the pressure sensor and / or the liquid circuit module, it can be ensured that the pressure sensor and the liquid circuit module always maintain close contact. In this way, the pressure sensor can always detect the liquid pressure in the liquid circuit module, thereby ensuring the accuracy and reliability of the pressure sensor detection. In particular, it can solve the problem that the pressure sensor cannot accurately measure the liquid pressure in the liquid circuit module when the liquid in the liquid circuit module is in a low-pressure state.

[0029] The medical device provided by this utility model includes the above-mentioned pump tube pressure sensing device and has at least the beneficial effects of the above-mentioned pump tube pressure sensing device. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 An exploded view of the pump pipe pressure sensing device provided in a specific embodiment of this utility model;

[0032] Figure 2 for Figure 1 A cross-sectional view of the assembled hydraulic circuit module, the second mounting block, and the first adjusting nut;

[0033] Figure 3 for Figure 1 Cross-sectional view after assembly (second mounting block not shown);

[0034] Figure 4 for Figure 3 A magnified view of part A in the image;

[0035] Figure 5 This is a schematic diagram of the structure of a pump tube pressure sensing device when applied to medical equipment.

[0036] Figure label:

[0037] 1-First mounting block; 11-Second groove; 2-Second mounting block; 3-Pressure sensor; 31-Main body; 32-First limiting boss; 33-First protrusion; 34-First gap; 4-Liquid circuit module; 41-Flow channel; 42-Pressure detection port; 43-Second protrusion; 5-First diaphragm core; 51-First limiting groove; 6-Second diaphragm core; 7-First adjusting nut; 8-Second adjusting shim; 9-Fixing ring;

[0038] 10 - Pump pipe pressure sensor; 20 - Front panel. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0040] The core of this invention is to provide a pump tube pressure sensing device that improves the accuracy of pressure detection. Another core aspect of this invention is to provide a medical device including the aforementioned pump tube pressure sensing device, which has high accuracy in pressure detection.

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 This utility model provides a pump pipe pressure sensing device, including a first mounting block 1, a second mounting block 2, a pressure sensor 3, and a top pressure member; the first mounting block 1 and the second mounting block 2 are arranged opposite to each other; the pressure sensor 3 is disposed on the first mounting block 1, and a first gap 34 is formed between the pressure sensor 3 and the second mounting block 2 (e.g., ...). Figure 5 As shown), the first gap 34 is used to accommodate the liquid circuit module 4 to detect the pressure of the liquid flowing in the liquid circuit module 4; at least one of the first mounting block 1 and the second mounting block 2 is provided with a top pressure member, so that the position of the pressure sensor 3 and at least one of the liquid circuit module 4 is adjustable along a preset direction so that the two are in close contact, and the preset direction is the direction in which the pressure sensor 3 and the liquid circuit module 4 approach each other.

[0042] When the liquid circuit module 4 is inserted into the first gap 34, the pressure sensor 3 is in contact with the liquid circuit module 4. The pressure sensor 3 can detect the pressure of the liquid flowing in the liquid circuit module 4, thereby enabling real-time monitoring of the liquid pressure in the liquid circuit module 4 for precise control of the liquid pressure.

[0043] Since at least one of the first mounting block 1 and the second mounting block 2 is provided with a pressure member, the position of at least one of the pressure sensor 3 and the liquid circuit module 4 can be adjusted along a preset direction by using the pressure member. Thus, by adjusting the position of the pressure sensor 3 and / or the liquid circuit module 4, it can be ensured that the pressure sensor 3 and the liquid circuit module 4 always maintain close contact. In this way, the pressure sensor 3 can always detect the liquid pressure in the liquid circuit module 4, thereby ensuring the accuracy and reliability of the pressure sensor 3 detection. In particular, it can solve the problem that the pressure sensor 3 cannot accurately measure the liquid pressure in the liquid circuit module 4 when the liquid in the liquid circuit module 4 is in a low-pressure state.

[0044] It should be noted that this embodiment does not limit the specific implementation of the top pressure component. As long as at least one of the first mounting block 1 and the second mounting block 2 is provided with a top pressure component, the position of at least one of the pressure sensor 3 and the liquid circuit module 4 can be adjusted along a preset direction.

[0045] In some embodiments, the pressing member includes an adjusting member movably connected to the first mounting block 1 and / or the second mounting block 2.

[0046] In other words, this embodiment adjusts the position of the adjusting member relative to the first mounting block 1 and / or the second mounting block 2 so that the top pressure member applies a top pressure to the liquid circuit module 4, and uses this top pressure to keep the pressure sensor 3 and the liquid circuit module 4 in close contact at all times.

[0047] The adjusting component can be an adjusting nut, which is threadedly connected to the first mounting block 1 and / or the second mounting block 2. The end of the adjusting nut abuts against the pressure sensor 3 or the hydraulic circuit module 4, so that by tightening the adjusting nut, the pressure sensor 3 or the hydraulic circuit module 4 is pressed against it, ensuring that the pressure sensor 3 and the hydraulic circuit module 4 remain in close contact. The adjusting nut can be located on the first mounting block 1, the second mounting block 2, or both. This structure is simple, easy to install, and convenient to adjust.

[0048] Of course, in addition to adjusting nuts, there can be other movable connection methods, such as adjusting parts with damping or structures that can be fixed after adjustment, such as bolts, levers, etc.

[0049] In other embodiments, the pressure member includes an elastic member disposed on the first mounting block 1 and / or the second mounting block 2, the elastic member being used to provide elastic force to the fluid circuit module 4 in a preset direction.

[0050] It is understood that the elastic element possesses elastic force, which acts on the fluid circuit module 4, exerting a pushing effect on it. This ensures that the pressure sensor 3 and the fluid circuit module 4 remain in close contact, preventing situations where the pressure sensor 3 and the fluid circuit module 4 are not in contact when inserted into the first gap 34 due to processing errors, assembly errors, etc. It should be noted that this embodiment does not limit the specific structure of the elastic element, as long as it can provide elastic force to the fluid circuit module 4. For example, the elastic element can be a spring, an elastic block, or a rubber pad, etc.

[0051] In other embodiments, the top pressure component may include a first adjusting shim disposed between the first mounting block 1 and the pressure sensor 3 and / or between the second mounting block 2 and the hydraulic circuit module 4, wherein the first adjusting shim may be one or more.

[0052] In other words, this embodiment inserts a first adjusting shim between the first mounting block 1 and the pressure sensor 3, and / or between the second mounting block 2 and the liquid circuit module 4. The first adjusting shim elevates the pressure sensor 3 closer to the liquid circuit module 4, and / or brings the liquid circuit module 4 closer to the pressure sensor 3, thereby ensuring close contact between the pressure sensor 3 and the liquid circuit module 4. It should be noted that this embodiment does not limit the specific structure, thickness, number, or material of the first adjusting shim, as long as the first adjusting shim can press against the pressure sensor 3 and / or the liquid circuit module 4 to ensure close contact between them.

[0053] In addition, considering the installation method of the pressure sensor 3, in some embodiments, the pressure sensor 3 is at least partially embedded in the first mounting block 1.

[0054] In other words, the pressure sensor 3 is at least partially spaced with the first mounting block 1. The internal space of the first mounting block 1 is used to accommodate at least part of the pressure sensor 3. This design can save space, reduce the volume of the entire pump pipe pressure sensing device, and protect the pressure sensor 3, etc. However, this arrangement of the pressure sensor 3 means that the first mounting block 1 does not have much space for installing the adjustment component. In this case, the adjustment component can be installed on the second mounting block 2.

[0055] For example, in some embodiments, the top pressure member includes a first adjusting nut 7 that is threadedly connected to the second mounting block 2, the first adjusting nut 7 passing through the second mounting block 2 in a predetermined direction.

[0056] In other words, in this embodiment, the pressing component is fixed to the second mounting block 2 by threading the first adjusting nut 7 to the second mounting block 2; the first adjusting nut 7 penetrates the second mounting block 2 in a preset direction, so that the end of the first adjusting nut 7 can extend into the first gap 34, thereby pressing the liquid circuit module 4; when there is a gap between the pressure sensor 3 and the liquid circuit module 4, the end of the first adjusting nut 7 can be screwed on to push the liquid circuit module 4, causing the liquid circuit module 4 to move closer to the pressure sensor 3, thereby making the pressure sensor 3 and the liquid circuit module 4 come into contact. This structure is simple and easy to set up.

[0057] Furthermore, in some embodiments, the pressure member further includes a second adjusting shim 8 disposed between the pressure sensor 3 and the first mounting block 1, wherein there are one or more second adjusting shims 8.

[0058] In other words, this embodiment uses a second adjusting shim 8 between the pressure sensor 3 and the first mounting block 1 to move the pressure sensor 3 closer to the liquid circuit module 4. This allows the pressure sensor 3 to protrude from the end of the first mounting block 1 facing the liquid circuit module 4, ensuring close contact between the pressure sensor 3 and the liquid circuit module 4. It is understood that the second adjusting shim 8 and the first adjusting nut 7 work together. The second adjusting shim 8 ensures that the pressure sensor 3 protrudes from the end of the first mounting block 1 facing the liquid circuit module 4, while the first adjusting nut 7 ensures that the liquid circuit module 4 presses against the pressure sensor 3, thus enabling a tighter fit between the pressure sensor 3 and the liquid circuit module 4.

[0059] It should be noted that this embodiment does not limit the specific structure, thickness, quantity and material of the second adjusting pad 8, as long as the second adjusting pad 8 can press against the pressure sensor 3, so that the pressure sensor 3 can move in the direction of the liquid circuit module 4, so as to facilitate the pressure sensor 3 to fit and contact the liquid circuit module 4.

[0060] To facilitate the fixed installation of pressure sensor 3, such as Figure 1 and Figure 3 As shown, in some embodiments, the pump pipe pressure sensing device further includes a retaining ring 9, the pressure sensor 3 is installed inside the retaining ring 9, and the retaining ring 9 is connected to the first mounting block 1.

[0061] In other words, in this embodiment, the pressure sensor 3 is installed in the first mounting block 1 through the fixing ring 9, which avoids the pressure sensor 3 being directly fixed to the first mounting block 1, thereby reducing the force on the pressure sensor 3 and ensuring the accuracy of the pressure sensor 3 detection.

[0062] It should be noted that this embodiment does not limit the specific connection method between the fixing ring 9 and the first mounting block 1, as long as the connection between the fixing ring 9 and the first mounting block 1 can be achieved.

[0063] In some embodiments, the first mounting block 1 is provided with a mounting groove, and the fixing ring 9 is embedded in the mounting groove. The fixing ring 9 can be connected to the mounting groove by interference fit, adhesive, or fastener.

[0064] Furthermore, such as Figure 1 As shown, in order to facilitate the installation of the pressure sensor 3, in some embodiments, one end of the fixing ring 9 is provided with a radially inwardly protruding limiting flange ring. The pressure sensor 3 includes a body part 31 and a first limiting boss 32 arranged in a stepped shape along the axis. The body part 31 is located inside the fixing ring 9, and the first limiting boss 32 extends out of the limiting flange ring.

[0065] When installing the pressure sensor 3, insert the pressure sensor 3 into the fixed ring 9 from the end of the fixed ring 9 away from the limiting flange ring, and make the first limiting boss 32 of the pressure sensor 3 extend out from the inside of the limiting flange ring until the connection between the body part 31 and the first limiting boss 32 abuts against the limiting flange ring, thus realizing the limiting installation of the pressure sensor 3 on the fixed ring 9.

[0066] It should be noted that the portion of the first limiting boss 32 extending outside the limiting flange ring can cooperate with the first diaphragm core 5 for limiting the installation of the first diaphragm core 5. At the same time, the cooperation and contact between the first limiting boss 32 and the first diaphragm core 5 helps to improve the reliability of the connection between the first diaphragm core 5 and the pressure sensor 3.

[0067] In order to facilitate the detection of the liquid pressure flowing in the liquid circuit module 4, in some embodiments, the pressure sensor 3 is provided with a first diaphragm 5 on the side facing the second mounting block 2, and the first diaphragm 5 is used to fit and contact with the liquid circuit module 4.

[0068] Understandably, the first membrane core 5 can deform under the liquid pressure of the liquid circuit module 4, which facilitates the pressure to be transmitted to the sensing part of the pressure sensor 3 through the contact between the first membrane core 5 and the liquid circuit module 4, so that the pressure sensor 3 can detect the liquid pressure in the liquid circuit module 4.

[0069] Additionally, it should be noted that, in order to facilitate the application of liquid pressure flowing within the liquid circuit module 4 to the pressure sensor 3, in some embodiments, the liquid circuit module 4 is provided with a second membrane core 6, which is used to contact the first membrane core 5. That is, when the liquid circuit module 4 is inserted into the first gap 34, the first membrane core 5 and the second membrane core 6 are in contact. When liquid flows within the liquid circuit module 4, the liquid pressure acts on the second membrane core 6, causing it to deform. Since the second membrane core 6 is in contact with the first membrane core 5, the pressure acting on the second membrane core 6 is transmitted to the first membrane core 5, causing it to deform as well. The first membrane core 5 then transmits the pressure to the sensing part of the pressure sensor 3, thereby enabling the pressure sensor 3 to detect the pressure of the liquid flowing within the liquid circuit module 4.

[0070] It should be noted that the internal structure of the liquid circuit module 4 is not limited in this embodiment of the invention, as long as liquid can flow through the liquid circuit module 4 and the liquid pressure can act on the pressure sensor 3. In some embodiments, the liquid circuit module 4 is provided with a flow channel 41 for liquid flow and a pressure detection port 42 communicating with the flow channel 41, and the second diaphragm 6 is disposed at the detection port 42. That is, when the liquid flows in the flow channel 41, the pressure is transmitted to the second diaphragm 6 through the pressure detection port 42, and finally acts on the pressure sensor 3.

[0071] Considering the ease of setting the first membrane core 5, in some embodiments, the first membrane core 5 is embedded in the first mounting block 1, and the first membrane core 5 abuts against the end face of the pressure sensor 3.

[0072] In other words, in this embodiment, by embedding the first membrane core 5 into the first mounting block 1, the first membrane core 5 and the pressure sensor 3 are connected to each other, so as to realize the setting of the first membrane core 5. In this way, the pressure sensor 3 can be installed on the first mounting block 1 first, and then the first membrane core 5 can be installed, which prevents the first membrane core 5 from causing inconvenience to the installation of the pressure sensor 3, and facilitates the installation of the pressure sensor 3.

[0073] It should be noted that the first membrane core 5 can be connected to the first mounting block 1 by means of interference fit, adhesive, or thermal bonding.

[0074] Furthermore, to ensure reliable connection between the first membrane core 5 and the pressure sensor 3, such as... Figure 1 As shown, in some embodiments, the first membrane core 5 is provided with a first limiting groove 51 for cooperating with the first limiting boss 32.

[0075] In other words, when installing the first membrane core 5, the first limiting boss 32 is aligned and connected with the first limiting groove 51. The cooperation between the first limiting boss 32 and the first limiting groove 51 enables the rapid installation and positioning of the first membrane core 5, which facilitates the installation of the first membrane core 5 and ensures the accuracy of the position of the first membrane core 5. This is beneficial to ensuring the reliability of the connection between the first membrane core 5 and the pressure sensor 3.

[0076] In addition, the present invention does not limit the specific installation method of the second membrane core 6, as long as the installation of the second membrane core 6 on the liquid circuit module 4 can be achieved. In some embodiments, one of the liquid circuit module 4 and the second membrane core 6 is provided with a second limiting boss, and the other is provided with a second limiting groove for cooperating with the second limiting boss.

[0077] In other words, when installing the second membrane core 6, the second limiting boss is aligned and connected with the second limiting groove. The cooperation between the second limiting boss and the second limiting groove enables the second membrane core 6 to be quickly installed and positioned, which facilitates the installation of the second membrane core 6 and ensures the accuracy of the position of the second membrane core 6. This is beneficial to ensuring the reliability of the connection between the second membrane core 6 and the liquid circuit module 4.

[0078] It should be noted that the second membrane core 6 and the liquid circuit module 4 can be connected by interference fit, adhesive, or thermal bonding.

[0079] like Figure 1 As shown, considering the rapid positioning of the pressure sensor 3 during installation, in some embodiments, one of the pressure sensor 3 and the first mounting block 1 is provided with a first protrusion 33, and the other is provided with a first groove for limiting the positioning in conjunction with the first protrusion 33.

[0080] When installing the pressure sensor 3, the first protrusion 33 is aligned and inserted into the first groove. The first groove and the first protrusion 33 are used to limit the pressure sensor 3, so as to realize the quick installation and positioning of the pressure sensor 3, facilitate the installation of the pressure sensor 3, and ensure the accuracy of the position of the pressure sensor 3.

[0081] In addition, considering the rapid positioning during the installation of the hydraulic module 4, such as Figure 1 As shown, in some embodiments, one of the liquid circuit module 4 and the first mounting block 1 is provided with a second protrusion 43, and the other is provided with a second groove 11 for cooperating with and limiting the second protrusion 43.

[0082] When installing the liquid circuit module 4, the second protrusion 43 is aligned and inserted into the second groove 11. The cooperation between the second groove 11 and the second protrusion 43 limits the liquid circuit module 4, so as to realize the quick installation and positioning of the liquid circuit module 4, facilitate the installation of the liquid circuit module 4, and ensure the accuracy of the position of the liquid circuit module 4.

[0083] Of course, in other embodiments, it is also possible to have one of the fluid circuit module 4 and the second mounting block 2 provided with a third protrusion, and the other provided with a third groove for engaging and limiting the third protrusion.

[0084] That is, when installing the liquid circuit module 4, the third protrusion is aligned and inserted into the third groove. The cooperation between the third groove and the third protrusion limits the liquid circuit module 4, so as to realize the quick installation and positioning of the liquid circuit module 4, facilitate the installation of the liquid circuit module 4, and ensure the accuracy of the position of the liquid circuit module 4.

[0085] In other words, a protrusion (such as a second protrusion 43) or a groove (such as a second groove 11) can be provided on the first mounting block 1 to limit the installation of the liquid circuit module 4. A protrusion (such as a third protrusion) or a groove (such as a third groove) can also be provided on the second mounting block 2 to limit the installation of the liquid circuit module 4. Of course, a protrusion or groove can also be provided on both the first mounting block 1 and the second mounting block 2 to limit the installation of the liquid circuit module 4.

[0086] In addition to the pump tube pressure sensing device described above, this utility model also provides a medical device that includes the pump tube pressure sensing device disclosed in the above embodiments. For the structure of other parts of the medical device, please refer to the prior art, which will not be described in detail here.

[0087] The key point of this embodiment is that the medical device uses the pump tube pressure sensing device disclosed in any of the above embodiments. Therefore, the medical device at least includes the beneficial effects of the above-mentioned pump tube pressure sensing device, which will not be repeated here.

[0088] like Figure 5 As shown, in some embodiments, the medical device includes a front panel 20, and a pump tube pressure sensor 10 is disposed on the front panel 20.

[0089] It should also be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The pump tube pressure sensing device and medical equipment provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A pump pipe pressure sensing device, characterized by, include: The first mounting block (1) and the second mounting block (2) are set relative to each other; A pressure sensor (3) is disposed on the first mounting block (1) and has a first gap (34) between it and the second mounting block (2) for accommodating the liquid circuit module (4) to detect the pressure of the liquid flowing therein; At least one of the first mounting block (1) and the second mounting block (2) is provided with a top pressure member, so that the position of at least one of the pressure sensor (3) and the liquid circuit module (4) is adjustable along a preset direction so that the two are in close contact. The preset direction is the direction in which the pressure sensor (3) and the liquid circuit module (4) approach each other.

2. The pump pipe pressure sensing apparatus according to claim 1, wherein The top-pressing component includes: an adjusting member movably connected to the first mounting block (1) and / or the second mounting block (2); or, An elastic element is provided on the first mounting block (1) and / or the second mounting block (2), the elastic element being used to provide elastic force to the fluid circuit module (4) along the preset direction; or, A first adjusting shim is provided between the first mounting block (1) and the pressure sensor (3) and / or between the second mounting block (2) and the liquid circuit module (4), wherein the first adjusting shim may be one or more.

3. The pump pipe pressure sensing apparatus of claim 1, wherein The pressure sensor (3) is at least partially embedded in the first mounting block (1).

4. The pump pipe pressure sensing apparatus of claim 3, wherein The top pressure component includes a first adjusting nut (7) that is threadedly connected to the second mounting block (2), and the first adjusting nut (7) passes through the second mounting block (2) along the preset direction.

5. The pump pipe pressure sensing apparatus of claim 4, wherein The top pressure component also includes a second adjusting shim (8) disposed between the pressure sensor (3) and the first mounting block (1), wherein there are one or more second adjusting shims (8).

6. The pump pipe pressure sensing apparatus of claim 3, wherein It also includes a fixing ring (9), in which the pressure sensor (3) is installed, and the fixing ring (9) is connected to the first mounting block (1).

7. The pump pipe pressure sensing apparatus of claim 6, wherein One end of the fixing ring (9) is provided with a radially inwardly protruding limiting flange ring. The pressure sensor (3) includes a body part (31) arranged in a stepped shape along the axis and a first limiting boss (32). The body part (31) is located inside the fixing ring (9), and the first limiting boss (32) extends out of the limiting flange ring.

8. A pump pipe pressure sensing device according to any one of claims 1 to 7, wherein The pressure sensor (3) has a first diaphragm core (5) on the side facing the second mounting block (2) for contact with the liquid circuit module (4).

9. A pump pipe pressure sensing device according to any one of claims 1 to 7, wherein One of the pressure sensor (3) and the first mounting block (1) is provided with a first protrusion (33), and the other is provided with a first groove for engaging and limiting the first protrusion (33); and / or, One of the liquid circuit module (4) and the first mounting block (1) is provided with a second protrusion (43), and the other is provided with a second groove (11) for cooperating with and limiting the second protrusion (43). And / or, one of the liquid circuit module (4) and the second mounting block (2) is provided with a third protrusion, and the other is provided with a third groove for cooperating with and limiting the third protrusion.

10. A medical device, characterized by Includes the pump tube pressure sensing device as described in any one of claims 1-9.

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