Novel pressure sensor suite

Abstract

The utility model discloses a novel pressure sensor suite, which comprises a first connecting tube, an invasive pressure sensing device, a storage tube and a puncture device, the first connecting pipe is communicated with an invasive pressure sensing device; the invasive pressure sensing device is electrically connected with a terminal interface, the invasive pressure sensing device is communicated with the storage tube, and the puncture device is fixedly connected to the storage tube; the puncture device comprises a puncture tube, an outer sleeve and an annular convex wall; the puncture tube is communicated with the liquid inlet end of the storage tube, and a plurality of barbs are arranged on the peripheral wall of the puncture tube; the puncture tube is sleeved with the outer sleeve in a sliding mode, a plurality of barbs are arranged in the inner space surrounded by the outer sleeve, a plurality of penetrating holes are formed in the peripheral wall of the outer sleeve, and a handle is arranged outside the peripheral wall of the outer sleeve; the annular convex wall is fixedly connected to the storage pipe and is in threaded sleeve connection with the outer sleeve; threaded transmission of the annular convex wall and the outer sleeve is used for controlling the barbs to move in and out of the outer sleeve, and the problem that the puncture end of an existing pressure sensor kit is prone to falling off from a pressurization bag is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a kind of novel pressure sensor suite. BACKGROUND

[0002] In clinical treatment, the measurement of arterial blood pressure monitoring and central venous pressure is mainly completed using a pressure sensor suite, and the measurement data is transmitted to a monitor via a cable and a monitoring module to provide data for clinical decision-making. A prior art discloses an invasive blood pressure monitoring device, which sets a pressure sensor between a pressure bag and a patient's blood vessel to detect the patient's arterial blood pressure and central venous pressure. However, the pressure sensor suite uses a needle insertion method to insert the saline rubber plug, and there is no locking device. Therefore, the pressure sensor is easily detached due to the pressure of the pressure bag, human touch or pulling, such as moving the patient, crossing the bed, patient restlessness, turning over, etc. If the joint is detached and then reconnected after disinfection, it may increase the risk of blood stream infection. If not discovered in time, it may cause blood return, pipe blockage, increase the risk of thrombosis, and also cause air to enter the artery / vein, causing air embolism and other serious complications. Therefore, it is of great application value to research a novel pressure sensor suite that prevents the puncture end from detaching. SUMMARY

[0003] The utility model aims at providing a novel pressure sensor suite to solve the problem of the puncture end of the existing pressure sensor suite easily detaching from the pressure bag.

[0004] To solve the above technical problems, the utility model provides a novel pressure sensor suite, which comprises a first connecting pipe, an invasive pressure sensing device, a storage pipe and a puncture device. The first connecting pipe is connected to the invasive pressure sensing device. The invasive pressure sensing device is electrically connected to a terminal interface. The invasive pressure sensing device is connected to the storage pipe. The storage pipe is fixedly connected to the puncture device. The puncture device comprises a puncture pipe, an outer sleeve pipe and an annular convex wall. The puncture pipe is connected to the liquid inlet end of the storage pipe. The circumferential wall of the puncture pipe is provided with a plurality of barbs. The outer sleeve pipe is slidably sleeved on the outside of the puncture pipe. The inner space surrounded by the outer sleeve pipe is provided with a plurality of barbs. The circumferential wall of the outer sleeve pipe is provided with a plurality of perforations. The circumferential wall of the outer sleeve pipe is externally provided with a handle. The annular convex wall is fixedly connected to the storage pipe. The annular convex wall is threadedly connected to the outer sleeve pipe. The threads of the annular convex wall and the outer sleeve pipe are used to control the movement of the barbs into and out of the outer sleeve pipe.

[0005] In one embodiment, a medical multi-way pipe is connected between the first connecting pipe and the invasive pressure sensing device. The liquid outlet end of the medical multi-way pipe is connected to a second connecting pipe.

[0006] In one of the embodiments, the first connecting pipe is connected with the medical multi-way pipe through a positive pressure connector.

[0007] In one of the embodiments, the liquid outlet interface of the first connecting pipe and the liquid outlet interface of the second connecting pipe are both screw interfaces, and the screw interface comprises an annular wall and an interface pipe, the interface pipe is sleeved with the annular wall, and the annular wall is internally provided with threads.

[0008] In one of the embodiments, the outer surfaces of the invasive pressure sensing device, the medical multi-way pipe and the positive pressure connector are all provided with medical adhesive tapes.

[0009] In one of the embodiments, the outer sleeve is connected with the puncture pipe in a sealed manner.

[0010] In one of the embodiments, the connection is in a form of interference fit.

[0011] In one of the embodiments, the gap length between the outer sleeve and the puncture pipe is smaller than the length of the barbs, and the barbs abut against the inner wall of the outer sleeve.

[0012] In one of the embodiments, the included angle between the barbs and the wall of the puncture pipe is 45-90°.

[0013] The beneficial effects of the utility model are as follows:

[0014] Since the puncture device is connected and fixed on the storage pipe, the puncture device comprises a puncture pipe, the puncture pipe is connected with the liquid inlet end of the storage pipe, and the peripheral wall of the puncture pipe is provided with a plurality of barbs, so that when the storage pipe is applied into the pressure bag through the puncture device, the barbs on the puncture pipe of the puncture device can be clamped on the bottom of the pressure bag, and the storage pipe cannot be affected by the pressure of the pressure bag or the change of the patient's position.

[0015] Moreover, since the puncture device further comprises an annular convex wall and an outer sleeve, the peripheral wall of the outer sleeve is provided with a plurality of perforations, and the peripheral wall of the outer sleeve is externally provided with a handle, the annular convex wall is connected and fixed on the storage pipe, the annular convex wall is threadedly sleeved with the outer sleeve, and the threads of the annular convex wall and the outer sleeve are used for controlling the movement of the barbs into and out of the outer sleeve, so that when the puncture device is applied, the handle can be used to control the movement of the barbs in and out of the outer sleeve, when the puncture device is inserted into the pressure bag, the handle drives the threads to control the barbs to move out of the outer sleeve and clamp the bottom of the pressure bag, and when the puncture device is moved out of the pressure bag, the handle drives the threads to control the barbs to move into the outer sleeve.

[0016] In summary, the mutual cooperation of the puncture device, the puncture tube, the outer sleeve and the annular convex wall effectively solves the problem that the puncture end of the existing pressure sensor kit is easy to fall off from the pressure bag. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is the overall structure schematic diagram provided by the preferred embodiment of the present application;

[0019] Figure 2 is the threaded interface structure schematic diagram of the second connecting pipe provided by the preferred embodiment of the present application;

[0020] Figure 3 is the puncture device structure schematic diagram provided by the preferred embodiment of the present application Figure 1 ;

[0021] Figure 4 is the puncture device structure schematic diagram provided by the preferred embodiment of the present application Figure 2 ;

[0022] Figure 5 is the outer sleeve structure schematic diagram provided by the preferred embodiment of the present application;

[0023] Figure 6 is the puncture tube structure schematic diagram provided by the preferred embodiment of the present application Figure 1 ;

[0024] Figure 7 is the puncture tube structure schematic diagram provided by the preferred embodiment of the present application Figure 2 .

[0025] The signs are as follows:

[0026] 1, first connecting pipe;

[0027] 2, invasive pressure sensing device;

[0028] 3, storage tube;

[0029] 4, puncture device; 40, puncture tube; 400, barb; 41, outer sleeve; 410, perforation; 411, handle; 42, annular convex wall;

[0030] 5, medical tee pipe;

[0031] 6, second connecting tube; 60, threaded interface; 600, annular wall; 601, interface tube;

[0032] 7, medical tape;

[0033] 8, positive pressure connector. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0035] In the prior art, the main problem is that after the puncture end of the pressure sensor set is inserted into the pressurizing bag, the pressure in the pressurizing bag extrudes the puncture end of the pressure sensor set because no locking device is set, which leads to the falling off of the whole pressure sensor set, so that the monitoring of the arterial blood pressure and the measurement of the central venous pressure cannot be realized.

[0036] In order to solve the above problems, the present application provides a novel pressure sensor set, and the preferred embodiment thereof is as shown in the figure. Figures 1 to 7 As shown in the figure, the novel pressure sensor set comprises a first connecting tube 1, an invasive pressure sensing device 2, a storage tube 3 and a puncture device 4; the first connecting tube 1 is connected to the invasive pressure sensing device 2; the invasive pressure sensing device 2 is electrically connected to a terminal interface; the invasive pressure sensing device 2 is connected to the storage tube 3, and the puncture device 4 is fixedly connected to the storage tube 3; the puncture device 4 comprises a puncture tube 40, an outer sleeve tube 41 and an annular convex wall 42; the puncture tube 40 is connected to the liquid inlet end of the storage tube, and the peripheral wall of the puncture tube 40 is provided with a plurality of barbs 400; the outer sleeve tube 41 is slidably sleeved outside the puncture tube 40, the inner space surrounded by the outer sleeve tube 41 is provided with a plurality of barbs 400, the peripheral wall of the outer sleeve tube 41 is provided with a plurality of perforations 410, and the peripheral wall of the outer sleeve tube 41 is externally provided with a handle 411; the annular convex wall 42 is fixedly connected to the storage tube 3, and the annular convex wall 42 is threadedly connected to the outer sleeve tube 41; the threads of the annular convex wall 42 and the outer sleeve tube 41 are used for controlling the movement of the barbs 400 into and out of the outer sleeve tube 41.

[0037] Among them, one end of the pressure sensor is connected to the established vascular access of the patient, and the other end of the invasive pressure sensing device 2 needs to be connected to the pressurizing bag, the pressurizing bag is filled with normal saline (containing or not containing heparin sodium), and the normal saline is pressurized to maintain the smoothness of the vascular access and avoid the formation of pipe blockage or thrombus.

[0038] It should be noted that in the application, the storage tube 3 is connected into the pressure bag by means of the puncture device 4, and because the puncture tube 40 on the puncture device 4 has the barb 400, the barb 400 can be clamped on the bottom of the pressure bag, the storage tube cannot be pulled out due to the pressure of the pressure bag or the change of the patient's position, and the puncture tube 40 cooperates with the sleeve tube 41 and the annular convex wall 42 to movably control the barb 400 in and out of the sleeve tube 41, when the puncture device 4 is inserted into the pressure bag, the handle 411 drives the threaded transmission to control the barb 400 to move out of the sleeve tube 41 and clamp on the bottom of the pressure bag; when the puncture device 4 is moved out of the pressure bag, the handle 411 drives the threaded transmission to control the barb 400 to move into the sleeve tube 41, accordingly, the barb 400 is flexibly controlled to move in and out of the sleeve tube 41 by the handle 411 driven by the threaded transmission, so as to control the barb 400 to be clamped in the pressure bag, and further control whether the pressure sensor set is clamped in the pressure bag, thereby solving the problem that the puncture end of the existing pressure sensor set is easily pulled out of the pressure bag.

[0039] As shown in Figure 1 , the first connecting tube 1 is also connected with the invasive pressure sensing device 2, and the medical multi-way tube 5 is connected with the second connecting tube 6.

[0040] Among them, one end of the invasive pressure sensing device 2 is connected with the established blood vessel access of the patient, and the blood vessel access includes but is not limited to radial artery, femoral artery, brachial artery catheterization and central venous catheterization, so that the medical multi-way tube 5 is connected with the invasive pressure sensing device 2, the medical multi-way tube 5 can be connected with the central venous catheter, and the invasive blood pressure (IBP, Invasive Blood Pressure) and the central venous pressure (CVP, Central Venous Pressure) can be measured at the same time, and the number of the medical multi-way tube 5 is preferably one in the embodiment, but the person skilled in the art can select the number of the medical multi-way tube according to the actual needs.

[0041] It should be noted that the medical multi-way tube in the embodiment includes but is not limited to the medical three-way tube 5 and the medical four-way tube, and the medical three-way tube 5 is preferred in the embodiment, and the person skilled in the art can select according to the actual needs.

[0042] As shown in Figure 1 , the first connecting tube is also connected with the medical multi-way tube, and the positive pressure connector is fixedly connected with the first connecting tube, after adopting this kind of setting mode, the user can perform needle-free blood sampling operation from the positive pressure connector.

[0043] As shown in Figure 1 and Figure 2As shown, the liquid outlet interface of the first connecting pipe 1 and the liquid outlet interface of the second connecting pipe 6 are both threaded interfaces 60; the threaded interface 60 comprises an annular wall 600 and an interface pipe 601, the interface pipe 601 is sleeved with the annular wall 600, and the annular wall 600 is internally provided with threads.

[0044] It should be noted that the existing liquid outlet interface of the second connecting pipe 6 is a common interface, that is, only the interface pipe 601, the interface pipe 601 is externally provided with threads, and the threads of the interface pipe 601 are connected with the threaded interface 60, but in actual application, the length of the second connecting pipe 6 is often not enough, and an external extension pipe is needed, and the common extension pipe is generally provided with common interfaces at both ends, therefore, the common interface of the second connecting pipe 6 is not convenient for the connection of the extension pipe, and therefore the liquid outlet interface of the second connecting pipe 6 is designed as the threaded interface 60, which can be applied to more extension pipes.

[0045] As shown in Figure 1 , the outer surfaces of the invasive pressure sensing device 2, the medical multi-way pipe 5 and the positive pressure connector 8 are all provided with medical adhesive tape 7, after adopting this setting mode, the user can directly stick the pressure sensor on the skin of the patient's arm or other corresponding parts, which is convenient for clinical use, can serve as a soft pad to avoid damaging the skin, and does not need to be additionally fixed by adhesive tape.

[0046] Among them, since the medical instrument is relatively hard and has many edges and corners, it is easy to scratch the skin, therefore, the medical adhesive tape 7 is designed outside the invasive pressure sensing device 2 and the medical multi-way pipe in the present application, so as to avoid damaging the patient.

[0047] It should be noted that the material of the soft pad 7 includes but is not limited to gauze and sponge, and the person skilled in the art can select according to actual needs.

[0048] As shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , the outer sleeve pipe 41 is connected and sealed with the puncture pipe 40.

[0049] It should be noted that the connection and sealing between the outer sleeve pipe 41 and the puncture pipe 40 can prevent the physiological saline in the pressure bag from overflowing from the perforations 410 of the outer sleeve pipe 41, and can effectively maintain the smoothness of the vascular access and avoid the formation of pipe blockage or thrombus.

[0050] As shown in Figures 3 to 5 , the connection and sealing mode is interference fit.

[0051] It should be noted that the bottom of the outer sleeve 41 is coaxially connected and fixed with a rubber mold, which is arranged between the bottom of the outer sleeve 41 and the outer wall of the puncture tube 40. The rubber mold is provided with a through hole, and the diameter of the through hole is much smaller than the diameter of the puncture tube 40. Through such a design, after the puncture tube 40 is punctured into the pressure bag, the through hole of the rubber mold elastically deforms, and the rubber mold tightly wraps the puncture tube 40. The rubber mold and the puncture tube 40 form an interference fit, which can prevent the liquid in the outer sleeve 41 from overflowing.

[0052] As shown in Figures 3 to 7 , the gap length between the outer sleeve 41 and the puncture tube 40 is less than the length of the barb 400, and the barb 400 abuts the inner wall of the outer sleeve 41.

[0053] Wherein, the length of the barb 400 must be greater than the gap length between the outer sleeve 41 and the puncture tube 40, so that the barb 400 can be stretched out of the perforation 410 of the outer sleeve 41, and the direction of the barb 400 is towards the direction of the through hole. When it is needed to move the barb 400 out of the perforation 410 of the outer sleeve 41, rotate the handle 411 to drive the outer sleeve 41 to screw in the annular convex wall 42.

[0054] When it is needed to move the barb 400 out of the outer sleeve 41, rotate the handle 411 to rotate the outer sleeve 41 upwards. Since the position of the barb 400 of the puncture tube 40 is fixed, the barb 400 and the perforation 410 form a relative movement, and when the position of the perforation 410 is aligned with the barb 400, the barb 400 can be stretched out of the perforation 410 and clamped on the pressure bag. When it is needed to move the barb 400 into the outer sleeve 41, rotate the handle 411 to rotate the outer sleeve 41 downwards. Since the position of the barb 400 of the puncture tube 40 is fixed, the barb 400 and the perforation 410 form a relative movement. When the position of the perforation 410 moves downwards, the barb 400 will gradually move out of the perforation 410. Thus, the controllability of the barb 400 is realized.

[0055] It should be understood that the material of the barb 400 is a material that can elastically deform. If the material is not elastically deformable, the barb 400 cannot move out of or into the perforation 410. The material that can elastically deform includes but is not limited to silica gel, and a person skilled in the art can select according to actual needs.

[0056] As shown in Figure 6 and Figure 7 , characterized in that the included angle between the barb 400 and the wall of the puncture tube 40 is 45-90°.

[0057] It should be pointed out that the barb 400 and the puncture tube 40 wall must form an angle to align the puncture 410, the preferred embodiment of the present application is arranged with an angle of 45°, which is more efficient to make the barb 400 pass out of the puncture 410, and those skilled in the art can adjust and select according to their actual needs.

[0058] The above is the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

Claims

1. A novel pressure sensor kit, characterized in that, a first connecting tube, an invasive pressure sensing device, a storage tube and a puncture device are included; the first connecting tube connects the invasive pressure sensing device; the invasive pressure sensing device is electrically connected with a terminal interface, the invasive pressure sensing device connects the storage tube, and the storage tube is fixedly connected with the puncture device; the puncture device includes a puncture tube, an outer sleeve tube and an annular convex wall; the puncture tube connects the liquid inlet end of the storage tube, and the peripheral wall of the puncture tube is provided with a plurality of barbs; the outer sleeve tube is slidably sleeved outside the puncture tube, the inner space surrounded by the outer sleeve tube is provided with a plurality of barbs, the peripheral wall of the outer sleeve tube is provided with a plurality of perforations, and the peripheral wall of the outer sleeve tube is externally provided with a handle; the annular convex wall is fixedly connected to the storage tube, and the annular convex wall is threadedly connected with the outer sleeve tube; the annular convex wall and the outer sleeve tube are threadedly connected for controlling the movement of the barbs into and out of the outer sleeve tube. 2.The novel pressure sensor kit according to claim 1, characterized in that, a medical multi-way tube is further connected between the first connecting tube and the invasive pressure sensing device, and the liquid outlet end of the medical multi-way tube is connected with a second connecting tube. 3.The novel pressure sensor kit according to claim 2, characterized in that, the liquid outlet interface of the first connecting tube and the liquid outlet interface of the second connecting tube are both screw interfaces; the screw interface includes an annular wall and an interface tube, the interface tube is sleeved with the annular wall, and the annular wall is internally provided with threads. 4.The novel pressure sensor kit according to claim 2, characterized in that, a positive pressure connector is further connected between the first connecting tube and the medical multi-way tube.

5. A novel pressure sensor kit as claimed in claim 4, wherein, the outer surfaces of the invasive pressure sensing device, the medical multi-way tube and the positive pressure connector are all provided with medical adhesive tape.

6. A new pressure sensor kit as claimed in claim 1, wherein, the outer sleeve tube and the puncture tube are connected and sealed.

7. A novel pressure sensor kit as claimed in claim 6, wherein, the connection and sealing mode is interference fit. 8.The novel pressure sensor kit according to claim 1, characterized in that, the gap length between the outer sleeve tube and the puncture tube is less than the length of the barb, and the barb abuts against the inner wall of the outer sleeve tube.

9. A novel pressure sensor kit as claimed in claim 8, wherein, the included angle between the barb and the puncture tube wall is 45-90°.

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