An arterial pressure sensor fixation device

Abstract

The application discloses an arterial pressure sensor fixing device, which comprises a crossbar and fixing assemblies installed at both ends of the crossbar, a U-shaped plug rod assembly is installed on the crossbar, the U-shaped plug rod assembly comprises a connecting seat and a U-shaped piece, and a hole groove is arranged on the connecting seat and used for inserting the end of the U-shaped piece; a rotating plate is arranged on the side of the connecting seat, a through groove is arranged on the connecting seat and used for rotating the rotating plate, the bottom of the through groove extends to the side wall of the hole groove, the top of the through groove extends to the surface of the connecting seat, the rotating plate is installed in the through groove through a rotating shaft, the end of the rotating plate extending out of the top of the through groove is provided with a convex edge, and the other end of the rotating plate extends to the hole groove through the through groove. The application realizes the installation of the crossbar and bed bodies in medical treatment, including operation and general bed bodies and supporting structures, can realize multi-angle free connection, is suitable for fixing plates of pressure sensors with different structures, and has connection diversity of the arterial pressure sensor in the use process.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, specifically to an arterial pressure sensor fixation device. Background Technology

[0002] Medical pressure sensors are mainly used to monitor various invasive blood pressure parameters in the human body, such as arterial pressure, central venous pressure, pulmonary artery pressure, and left coronary artery pressure. They directly obtain this physiological parameter of blood pressure, providing objective evidence for clinical diagnosis, treatment, and prognosis estimation of diseases. When used during surgery, the sensor is often placed at the same level as the patient's heart when lying flat.

[0003] Medical pressure sensors are usually placed flat on the edge of the operating table, which is basically at the same level as the patient's heart when lying flat. The patient's body size also affects the height of the pressure sensor relative to the heart. Currently, methods such as elevating the sensor are generally used to make it basically at the same level as the patient's heart when lying flat.

[0004] However, this method of existing technology can only rely on human judgment to determine the horizontal position relationship between the pressure sensor and the heart, which is not very accurate, and the pressure sensor is easily affected by external factors, causing its position to change. Summary of the Invention

[0005] The purpose of this invention is to provide an arterial pressure sensor fixation device to solve the technical problem of pressure sensors falling off, shifting downwards, or shifting upwards during surgical procedures in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: An arterial pressure sensor fixing device includes a crossbar and fixing assemblies installed at both ends of the crossbar. A U-shaped insertion rod assembly is installed on the crossbar, and a winding assembly is provided at the bottom of the U-shaped insertion rod assembly. The fixing component is used to fix the end of the crossbar to the bed edge structure and to provide the crossbar with a rotational motion about the fixing component; The U-shaped insert assembly is used to fix the base of the arterial pressure sensor; The winding assembly is used to wind the wire of the arterial pressure sensor.

[0007] As a preferred embodiment of the present invention, the crossbar includes a main body and a secondary body installed on the main body along the length direction of the main body. One end of the secondary body is rotatably connected to the main body through the fixing component, and the fixing component near the other end of the secondary body is rotatably connected to the end of the main body. The outer surface of the secondary rod is provided with a rack groove, and the U-shaped insert assembly is connected to the secondary rod through a clamp-shaped groove that cooperates with the rack groove. The U-shaped insert assembly can move along the length direction of the secondary rod through the cooperation of the rack groove and the clamp-shaped groove.

[0008] As a preferred embodiment of the present invention, the U-shaped insert assembly includes a connecting seat and a U-shaped member. The connecting seat is mounted on the secondary rod body, and the clamp-shaped groove is provided on the back side of the connecting seat. The connecting seat is connected to the rack groove on the secondary rod body through the clamp-shaped groove. The connecting seat is provided with a hole groove for the end of the U-shaped member to be inserted.

[0009] In a preferred embodiment of the present invention, a rotating plate is provided on the side of the connecting seat, and a through groove is provided on the connecting seat for the rotating plate to rotate. The bottom of the through groove extends to the side wall of the hole groove, and the top of the through groove extends to the surface of the connecting seat. The rotating plate is installed in the through groove by a rotating shaft. One end of the rotating plate extending out of the top of the through groove is provided with a protruding edge, and the other end of the rotating plate extends into the hole groove through the through groove.

[0010] In a preferred embodiment of the present invention, the bottom of the through groove extends to the surface of the connecting seat that contacts the secondary rod, and the end of the U-shaped piece enters the slot, forcing the rotating plate to rotate around the spindle, causing the protruding edge to displace along the surface of the connecting seat, and the end of the rotating plate to contact the surface of the secondary rod. There is a gap between the back side of the connecting seat and the surface of the rack groove of the secondary rod, allowing the U-shaped member to move out of the connecting seat surface along the slot.

[0011] As a preferred embodiment of the present invention, the U-shaped component includes an arc-shaped clamping section, both ends of which are provided with straight plate sections, and the two straight plate sections are parallel, and the initial distance between the two straight plate sections on the arc-shaped clamping section that is not subject to external force is greater than the distance between the two slots on the connecting seat.

[0012] In a preferred embodiment of the present invention, the auxiliary rod is rotatably connected to the main rod via a rotating sleeve, and the fixing component is installed in the rotating sleeve.

[0013] In a preferred embodiment of the present invention, the fixing component includes a bolt, the upper and lower parts of which are threadedly connected to a nut pair, a support rod rotatably connected to the nut pair, a support plate being provided at the top of the support rod along the radial direction of the bolt, and an acute angle being formed between the support rod and the bolt; the bolt passes axially through the rotating sleeve.

[0014] In a preferred embodiment of the present invention, the winding assembly includes a hollow winding sleeve. A plurality of guide through holes are evenly distributed on the circumferential surface of one end of the hollow winding sleeve, and the guide through holes extend into the inner cavity of the hollow winding sleeve. An actuating inner tube body is coaxially installed in the inner cavity of the hollow winding sleeve, and the end of the actuating inner tube body is circumferentially distributed with petal strips corresponding one-to-one with the plurality of guide through holes. An actuating locking assembly is connected to the end of the actuating inner tube body away from the petal strips. A retaining ring is fitted on the other end of the hollow winding sleeve away from the guide through holes, and the retaining ring is connected to the bottom of the connecting seat. Specifically, by applying a force along the axial direction of the inner tube to the action locking assembly, the action locking assembly drives the inner tube to move axially along the inner cavity, thereby causing the flap to move along the guide through hole and extend out of the surface of the hollow winding sleeve. The action locking assembly is used to lock the position of the inner tube.

[0015] As a preferred embodiment of the present invention, the main rod is provided with a plurality of fasteners, the fasteners being connected to the main rod through a first slot at one end of the fastener, and the other end of the fastener being provided with a second slot that cooperates with the auxiliary rod.

[0016] Compared with the prior art, the present invention has the following advantages: This invention uses a crossbar as the connecting structure for the pressure sensor base and sets fixing components on both sides of the crossbar, enabling the crossbar to be connected and installed with the bed in medical treatment, including surgical and general beds and support structures. It has a high degree of adaptability in actual use and can achieve free connection of the crossbar with the general bed at multiple angles.

[0017] This invention enables the arterial pressure sensor clamping position to change along the length of the crossbar, specifically for better position adjustment and simultaneous convergence of the arterial pressure sensor wire with its position change. Attached Figure Description

[0018] 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 introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of one embodiment of the arterial pressure sensor fixation device provided in this invention. Figure 2A schematic diagram of another embodiment of the arterial pressure sensor fixation device is provided for this invention. Figure 3 A schematic diagram of the structure of the U-shaped plug assembly is provided for an embodiment of the present invention; Figure 4 A schematic diagram of the winding assembly is provided for an embodiment of the present invention.

[0020] The labels in the diagram represent the following: 1-Horizontal bar; 2-Fixing assembly; 3-U-shaped insert assembly; 4-Groove; 5-Rotating plate; 6-Through groove; 7-Protruding edge; 8-Mandrel; 9-Winding assembly; 10-Action locking assembly; 11-Fastener; 12-First slot; 13-Second slot; 14-Artery pressure sensor fixing plate; 101-Main rod; 102-Secondary rod; 103-Rack groove; 104-Pinker groove; 105-Rotating sleeve; 201 - Bolt; 202 - Nut pair; 203 - Support rod; 204 - Support plate; 31-Connecting seat; 32-U-shaped part; 33-Arc-shaped clamping section; 34-Straight plate section; 35-Rotating shaft; 36-Stepped groove; 91-Hollow winding sleeve; 92-Guide through hole; 93-Inner cavity; 94-Inner tube body; 95-Flap body; 96-Retaining ring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Existing medical pressure sensors typically use a fixed plate with a locking groove or deformable groove on the plate for engaging with the pressure sensor base. The deformable groove is usually achieved by locking one side of the sensor to move directionally on the fixed plate. This approach presents several problems: Typically, the base of a medical pressure sensor device of a certain model needs to be connected to a fixing slot on a specific fixing plate. In order to ensure its installation stability, the pressure sensor base and the fixing slot need to be tightly connected. This makes the overall installation position of the medical pressure sensor device relatively fixed and requires a specific installation position to ensure that the overall medical pressure sensor device maintains a specific way of contact with the human body. It cannot meet the needs of positional changes during surgery or the need for overall displacement of the installation structure. Moreover, it is usually for single use. Even if a deformable (variable size) slot is used, its installation position relative to the fixing plate is still fixed.

[0023] Therefore, such as Figure 1 As shown, the present invention provides an arterial pressure sensor fixing device, including a crossbar 1 and fixing components 2 installed at both ends of the crossbar 1. A U-shaped insertion rod assembly 3 is installed on the crossbar 1. The U-shaped insertion rod assembly 3 includes a connecting seat 31 and a U-shaped member 32. The connecting seat 31 is installed on the crossbar 1, and the connecting seat 31 is provided with a slot 4 for inserting the end of the U-shaped member 32.

[0024] In other words, the present invention provides a slot 4 for inserting a U-shaped member 32 on the connecting seat 31. The U-shaped member is connected to the base of the arterial pressure sensor. In this case, if the arterial pressure sensor fixing plate 14 is provided with a rectangular slot, the end of the U-shaped member 32 can be inserted into the rectangular slot. If the arterial pressure sensor fixing plate is not provided with a rectangular slot, the U-shaped member 32 can clamp both ends of the arterial pressure sensor fixing plate in the length direction. Then the end of the U-shaped member 32 is inserted into the slot 4, thereby realizing the clamping and fixing of the fixing plate of the arterial pressure sensor with different structural forms.

[0025] Although the static friction between the U-shaped part 32 and the inner wall of the slot 4 can achieve stable fixation of the arterial pressure sensor mounting plate, the static friction between the two obviously cannot guarantee a stable connection when the arterial pressure sensor shakes or is pulled. Therefore, a rotating plate 5 is provided on the side of the connecting seat 31, and a through groove 6 for the rotating plate 5 to rotate is provided on the connecting seat 31. The bottom of the through groove 6 extends to the side wall of the slot 4, and the top of the through groove 6 extends to the surface of the connecting seat 31. The rotating plate 5 is installed in the through groove 6 through a rotating shaft. A protruding edge 7 is provided at one end of the rotating plate 5 extending out of the top of the through groove 6, and the other end of the rotating plate 5 extends into the slot 4 through the through groove 6.

[0026] In this process, the rotating plate 5 is forced to rotate around the spindle 8 by entering the groove 4 at the end of the U-shaped part 32, causing the protruding edge 7 to displace along the surface of the connecting seat 31, thereby making the protruding edge 7 contact the side of the pressure sensor base for clamping.

[0027] The bottom of the through groove 6 extends to the surface of the connecting seat 31 that contacts the crossbar 1. The end of the U-shaped piece 32 enters the hole groove 4, forcing the rotating plate 5 to rotate around the spindle 8. The end of the rotating plate 5 contacts the surface of the crossbar 1, achieving a pressing contact between the end of the rotating plate 5 and the surface of the crossbar 1. This completes the automatic locking of the U-shaped insert assembly with the crossbar 1 after the pressure sensor base is fixedly installed. The unlocking process can be achieved by manually driving the rotating plate 5 in the reverse direction, causing the rotating plate 5 to disengage from the crossbar 1 and the U-shaped piece 32, and pulling out the U-shaped piece 32 to unlock.

[0028] At this point, since the end of the rotating plate 5 has been pressed into contact with the surface of the crossbar 1, it has the function of locking the position of the connecting seat 31 on the crossbar 1. That is, the pressure sensor base is fixed by self-locking and the position can be changed in the length direction of the crossbar 1.

[0029] Under the aforementioned premise of fixing the arterial pressure sensor, the present invention uses a crossbar 1 as the connecting structure of the pressure sensor base, namely the carrier of the U-shaped plug assembly 3, and sets fixing components 2 on both sides of the crossbar 1 to realize the installation of the crossbar 1 with the medical treatment bed, including surgical and general beds and support structures. It has high adaptability, can realize free connection at multiple angles, simplifies the connection method of the pressure sensor base and the groove, and improves the versatility of use.

[0030] Furthermore, in order to achieve clamping of pressure sensor bases of different models and to match the structure of different models of pressure sensor parts as much as possible, and to perform a stable clamping function, the U-shaped part 32 includes an arc-shaped clamping section 33. Both ends of the arc-shaped clamping section 33 are provided with straight plate sections 34, and the two straight plate sections 34 are parallel. The initial distance between the two straight plate sections 34 on the arc-shaped clamping section 33 without external force is greater than the distance between the two holes 4 on the connecting seat 31.

[0031] In order to enable the wiring of the medical pressure sensor to be wound and fixed and to be released quickly, the connecting base 31 is equipped with a winding assembly 9 via a rotating shaft 35. The winding assembly 9 includes a hollow winding sleeve 91. A plurality of guide through holes 92 are evenly distributed on the circumferential surface of one end of the hollow winding sleeve 91, and the guide through holes 92 extend into the inner cavity 93 of the hollow winding sleeve 91. An actuating inner tube body 94 is coaxially installed in the inner cavity 93 of the hollow winding sleeve 91, and the end of the actuating inner tube body 94 is circumferentially distributed with petal strips 95 corresponding one-to-one with the plurality of guide through holes 92. An actuating locking assembly 10 is connected to the end of the actuating inner tube body 94 away from the petal strips 95. The specific driving and position locking of the actuating inner tube body 94 by the actuating locking assembly 10 can be referred to the self-locking structure of the existing ballpoint pen. In the self-locking structure of the ballpoint pen, rotation is unidirectional. In the implementation process of this application, the actuating inner tube body 94 and the actuating locking assembly 10 can be rotated together.

[0032] The petal strip 95 is specifically a strip-shaped structure, made of soft plastic or shape memory metal. The through guide hole 92 guides the petal strip 95 towards the end where the action locking assembly 10 is located or along the radial direction of the hollow winding sleeve 91. At this time, the hollow winding sleeve 91 between the retaining ring 96 and the petal strip 95 is used for winding.

[0033] When it is necessary to release the winding part of the pressure sensor, the locking component 10 is manually applied to cause the entire bar body 95 to retract into the hollow winding sleeve 91, which can instantly release the wire on the hollow winding sleeve 91.

[0034] Furthermore, the gaps between two adjacent petal bodies 95 can also be used to fix the wiring to maintain the stability of the winding.

[0035] The other end of the hollow winding sleeve 91 away from the guide through hole 92 is fitted with a retaining ring 96, which is used to limit the wire wound on the hollow winding sleeve 91.

[0036] Specifically, by applying a force along the axial direction of the inner tube 94 to the action locking assembly 10, the action locking assembly 10 drives the inner tube 94 to move axially along the inner cavity 93, thereby causing the flap 95 to move along the guide through hole 92 and extend out of the surface of the hollow winding sleeve 91. The action locking assembly 10 is used to lock the position of the inner tube 94.

[0037] To further clarify, the connection between the rotating shaft 35 and the winding assembly 9 is for the purpose of allowing the entire winding assembly 9 to rotate around the rotating shaft 35. Therefore, in Figure 4 In this configuration, the mounting positions of the rotating shaft 35 and the housing of the actuation locking assembly 10 do not affect the rotation of the winding assembly 9. That is, the rotating shaft 35 is not connected to the actuation part of the actuation locking assembly 10.

[0038] The existing brackets for installing medical pressure sensors require the installation and release of the support rod structure through the rotation of the bolt structure during adjustment. At the same time, the pressure sensor base also needs to be manually released and connected to the fixing groove during postoperative or intraoperative adjustment, which is quite complicated in terms of use.

[0039] Therefore, in order to achieve multi-degree-of-freedom installation of the U-shaped plug assembly 3 on the pressure sensor base, the crossbar 1 includes a main rod body 101 and a secondary rod body 102 installed on the main rod body 101 along the length direction of the main rod body 101. One end of the secondary rod body 102 is rotatably connected to the main rod body 101. The surface of the secondary rod body 102 is provided with a rack groove 103. The back side of the connecting seat 31 is provided with a clamp-shaped groove 104, and the connecting seat 31 is slidably installed on the secondary rod body 102 through the clamp-shaped groove 104.

[0040] The through groove 6 extends to the surface of the clamp groove 104, and the rotating plate 5 extends to the end of the clamp groove 104 and connects to the rack groove 103.

[0041] Furthermore, in order to enhance the wiring of the pressure sensor and the support connection between the main rod 101 and the auxiliary rod 102, the main rod 101 is provided with a number of fasteners 11. The fasteners 11 are connected to the main rod 101 through a first slot 12 provided at one end of the fasteners 11, and a second slot 13 provided at the other end of the fasteners 11 to cooperate with the auxiliary rod 102.

[0042] One end of the secondary rod 102 is rotatably connected to the main rod 101 via a rotating sleeve 105, thereby enabling relative rotation between the main rod 101 and the secondary rod 102.

[0043] In this invention, the crossbar 1 can be fixed by existing clamping or connection methods. In order to enable the main bar 101 and the auxiliary bar 102 to be freely set at multiple angles, the fixing component 2 includes a bolt 201. The upper and lower parts of the bolt 201 are threaded with a nut pair 202. A support rod 203 is rotatably connected to the nut pair 202. A support plate 204 is provided on the top of the support rod 203 along the radial direction of the bolt 201. There is an acute angle between the support rod 203 and the bolt 201. The bolt 201 passes through the rotating sleeve 105 axially.

[0044] The rotating sleeve 105 can be fixedly connected to the bolt 201. The rotating sleeve 105 rotates relative to both the main rod 101 and the auxiliary rod 102. At the same time, the nut pair 202 moves on the bolt 201 by manually driving the rotating sleeve 105, thereby supporting the connection between the support plate 204 and the bed or bracket structure, or fixing it by clamping it by the mutual approach of the two support plates 204.

[0045] It should be noted that the fixing component 2 at the other end of the crossbar 1 in this invention is only rotatably connected to the main rod body 101.

[0046] To further explain, in order to achieve stable clamping of the pressure sensor base without slots in this invention, a stepped groove 36 is provided on the inner surface of the arc-shaped clamping section 33, and the stepped groove 36 on the inner surface of the arc-shaped clamping section 33 is mirror-symmetrical about the center line of the arc-shaped clamping section 33.

[0047] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An arterial pressure sensor fixation device, characterized in that, It includes a crossbar (1) and a fixing assembly (2) installed at both ends of the crossbar (1). A U-shaped plug assembly (3) is installed on the crossbar (1), and a winding assembly (9) is provided at the bottom of the U-shaped plug assembly (3). The fixing component (2) is used to fix the end of the crossbar (1) to the bed edge structure and to provide the crossbar (1) to rotate around the fixing component (2). The U-shaped insert assembly (3) is used to fix the base of the arterial pressure sensor; The winding assembly (9) is used to wind the wire of the arterial pressure sensor; The crossbar (1) includes a main rod body (101) and a secondary rod body (102) installed on the main rod body (101) along the length direction of the main rod body (101). One end of the secondary rod body (102) is rotatably connected to the main rod body (101) through the fixing component (2), and the fixing component (2) near the other end of the secondary rod body (102) is rotatably connected to the end of the main rod body (101). The outer surface of the secondary rod body (102) is provided with a rack groove (103), and the U-shaped plug assembly (3) is connected to the secondary rod body (102) through a clamp groove (104) that cooperates with the rack groove (103). The U-shaped plug assembly (3) can move along the length direction of the secondary rod body (102) through the cooperation of the rack groove (103) and the clamp groove (104). The U-shaped insert assembly (3) includes a connecting seat (31) and a U-shaped member (32). The connecting seat (31) is mounted on the secondary rod body (102). The back side of the connecting seat (31) is provided with the clamp-shaped groove (104), and the connecting seat (31) is connected to the rack groove (103) on the secondary rod body (102) through the clamp-shaped groove (104). The connecting seat (31) is provided with a hole (4) for the end of the U-shaped member (32) to be inserted. A rotating plate (5) is provided on the side of the connecting seat (31). A through groove (6) for the rotating plate (5) to rotate is provided on the connecting seat (31). The bottom of the through groove (6) extends to the side wall of the hole (4). The top of the through groove (6) extends to the surface of the connecting seat (31). The rotating plate (5) is installed in the through groove (6) by a rotating shaft. A protruding edge (7) is provided at one end of the rotating plate (5) extending out of the top of the through groove (6). The other end of the rotating plate (5) extends into the hole (4) through the through groove (6). The bottom of the through groove (6) extends to the surface of the connecting seat (31) that contacts the secondary rod (102). The end of the U-shaped piece (32) enters the hole (4), forcing the rotating plate (5) to rotate around the spindle (8), causing the protruding edge (7) to move along the surface of the connecting seat (31), and the end of the rotating plate (5) to contact the surface of the secondary rod (102). There is a gap between the back side of the connecting seat (31) and the surface where the rack groove (103) of the auxiliary rod (102) is located, allowing the U-shaped piece (32) to move out of the surface of the connecting seat (31) along the hole groove (4).

2. The arterial pressure sensor fixation device according to claim 1, characterized in that, The U-shaped component (32) includes an arc-shaped clamping section (33), both ends of which are provided with straight plate sections (34), and the two straight plate sections (34) are parallel. The initial distance between the two straight plate sections (34) on the arc-shaped clamping section (33) without external force is greater than the distance between the two holes (4) on the connecting seat (31).

3. The arterial pressure sensor fixation device according to claim 1, characterized in that, The secondary rod (102) is rotatably connected to the main rod (101) via a rotating sleeve (105), and the fixing component (2) is installed in the rotating sleeve (105).

4. The arterial pressure sensor fixation device according to claim 3, characterized in that, The fixing component (2) includes a bolt (201), and a nut pair (202) is threaded to both the upper and lower parts of the bolt (201). A support rod (203) is rotatably connected to the nut pair (202). A support plate (204) is provided on the top of the support rod (203) along the radial direction of the bolt (201). There is an acute angle between the support rod (203) and the bolt (201). The bolt (201) passes through the rotating sleeve (105) axially.

5. The arterial pressure sensor fixation device according to claim 1, characterized in that, The winding assembly (9) includes a hollow winding sleeve (91). A plurality of guide through holes (92) are evenly distributed on the circumferential surface of one end of the hollow winding sleeve (91), and the guide through holes (92) extend to the inner cavity (93) of the hollow winding sleeve (91). An actuating inner tube body (94) is coaxially installed in the inner cavity (93) of the hollow winding sleeve (91), and the end of the actuating inner tube body (94) is circumferentially distributed with petal strips (95) corresponding one-to-one with the plurality of guide through holes (92). An actuating locking assembly (10) is connected to the end of the actuating inner tube body (94) away from the petal strips (95). A retaining ring (96) is fitted on the other end of the hollow winding sleeve (91) away from the guide through holes (92), and the retaining ring (96) is connected to the bottom of the connecting seat (31). In this process, by applying a force along the axial direction of the inner tube (94) to the action locking assembly (10), the action locking assembly (10) drives the inner tube (94) to move axially along the inner cavity (93), thereby causing the flap body (95) to move along the guide through hole (92) and extend out of the surface of the hollow winding sleeve (91). The action locking assembly (10) is used to lock the position of the inner tube (94).

6. The arterial pressure sensor fixation device according to claim 1, characterized in that, The main rod (101) is provided with a number of fasteners (11). The fasteners (11) are connected to the main rod (101) through a first slot (12) provided at one end of the fasteners (11). The other end of the fasteners (11) is provided with a second slot (13) that cooperates with the secondary rod (102).

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