Continuous invasive blood oxygen saturation monitoring device and blood oxygen saturation monitoring system

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a continuous invasive oxyhemoglobin saturation monitoring device and an oxyhemoglobin saturation monitoring system, which comprise a puncture needle, an indwelling cannula component and an oxyhemoglobin saturation detection optical fiber, the indwelling cannula assembly comprises a catheter seat, an indwelling catheter, a leading-in pipe and a liquid inlet pipe; a guide channel is arranged in the catheter seat; the indwelling catheter and the ingress pipe are both communicated with the catheter seat, and the tip of the puncture needle sequentially penetrates through the guide channel and the indwelling catheter; the detection end of the oxyhemoglobin saturation detection optical fiber penetrates through the ingress pipe and is inserted into the indwelling catheter; the guide channel is connected with a first sealing part, and the first sealing part is used for sealing the guide channel; the lead-in pipe is connected with a second sealing part, and the second sealing part is used for sealing the lead-in pipe; the continuous invasive oxyhemoglobin saturation monitoring device can continuously monitor the oxyhemoglobin saturation, provides continuous dynamic data for clinical diagnosis and treatment conveniently, quickly and accurately, and indirectly reduces the economic burden and physiological pain of a patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a continuous invasive blood oxygen saturation monitoring device. Background Art

[0002] Blood oxygen saturation is one of the important indicators reflecting the severity of a patient's condition and provides an important reference indicator for patient diagnosis and treatment. Ordinary patients have good peripheral circulation and can be monitored through non-invasive blood oxygen saturation monitors, which can provide data quickly and conveniently. However, critically ill patients have poor blood circulation due to their critical condition, and it is difficult to measure blood oxygen saturation data non-invasively, which greatly reduces the accuracy of the data. This brings great difficulties to clinical diagnosis and treatment and disease assessment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a continuous invasive blood oxygen saturation monitoring device.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] In a first aspect, the utility model provides a continuous invasive blood oxygen saturation monitoring device, comprising a puncture needle, an indwelling cannula assembly, and a blood oxygen saturation detection optical fiber.

[0006] The indwelling sleeve assembly comprises a catheter seat, an indwelling catheter, an introduction tube and a liquid inlet tube.

[0007] A guide channel is provided in the middle of the catheter seat.

[0008] The indwelling catheter and the introduction tube are both communicated with the catheter seat, and the tip of the puncture needle passes through the guide channel and the indwelling catheter in sequence.

[0009] The detection end of the blood oxygen saturation detection optical fiber passes through the introduction tube and is inserted into the indwelling catheter.

[0010] The liquid inlet tube is configured to communicate with the introduction tube or the catheter seat.

[0011] The guide channel is connected to a first sealing component, which is used to seal the guide channel. The puncture needle passes through the first sealing component.

[0012] The introduction tube is connected to a second sealing component, which is used to seal the introduction tube. The blood oxygen saturation detection optical fiber passes through the second sealing component.

[0013] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, a needle holding handle is provided on the puncture needle, and the needle holding handle is fixedly connected to the puncture needle.

[0014] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, the first sealing component and the second sealing component are both heparin caps.

[0015] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, the catheter seat, the introduction tube and the liquid inlet tube are all transparent.

[0016] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, a quick connector is provided at the end of the liquid inlet tube.

[0017] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, a one-way valve is provided on the liquid inlet pipe.

[0018] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, the central axis of the indwelling catheter coincides with the central axis of the guide channel.

[0019] The angle between the central axis of the guide channel and the central axis of the introduction pipe is an acute angle.

[0020] In the continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure, the first sealing component is fixed in the guide channel, and the outer wall of the first sealing component is sealed with the inner wall of the guide channel.

[0021] The second sealing component is fixed in the introduction tube, and an outer wall of the second sealing component is sealed against an inner wall of the introduction tube.

[0022] The first sealing component and the second sealing component are both medical rubber plugs.

[0023] The continuous invasive blood oxygen saturation monitoring device provided in at least one embodiment of the present disclosure further includes an infusion tube.

[0024] The liquid infusion tube is connected to the liquid inlet tube.

[0025] In a second aspect, the present invention also provides a blood oxygen saturation monitoring system, including a monitor and the above-mentioned continuous invasive blood oxygen saturation monitoring device.

[0026] The blood oxygen saturation detection optical fiber is electrically connected to the monitor.

[0027] The beneficial effects of the utility model are: it can continuously provide clinical physicians with accurate blood oxygen saturation data, is easy to operate, and is applicable to all clinical patients including those with poor peripheral circulation, providing important data for patient diagnosis and treatment, indirectly shortening the patient's hospitalization time and reducing financial pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 1 is a cross-sectional view of a continuous invasive blood oxygen saturation monitoring device in some embodiments.

[0030] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0031] Figure 3 A partial cross-sectional view of a continuous invasive blood oxygen saturation monitoring device in some embodiments.

[0032] Figure 4 is a perspective view of a first sealing component in some embodiments.

[0033] Figure 5 1 is a cross-sectional view of a continuous invasive blood oxygen saturation monitoring device in some embodiments.

[0034] In the picture:

[0035] 10. Puncture needle; 11. Needle handle;

[0036] 20. Indwelling cannula assembly; 21. Catheter adapter; 22. Indwelling catheter; 23. Introduction tube; 24. Liquid inlet tube; 26. First sealing component; 27. Second sealing component;

[0037] 30. Blood oxygen saturation detection optical fiber. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0039] Currently, the blood oxygen saturation of patients is measured clinically by pinching the finger with a blood oxygen saturation monitor. This method cannot accurately and effectively reflect the severity and changes of the patient's condition, because the peripheral blood oxygen saturation of some patients with poor peripheral circulation cannot be measured, and it cannot provide a reference indicator for clinical physicians, resulting in delays in the condition or incorrect judgments about the condition.

[0040] However, measurement through a blood gas analyzer can provide accurate blood oxygen saturation for clinical purposes, but this method is relatively complicated to operate, cannot provide continuous dynamic monitoring, consumes manpower and time, and increases the economic burden on patients.

[0041] In order to overcome the above-mentioned technical problems, an embodiment provides a continuous invasive blood oxygen saturation monitoring device, in which a blood oxygen saturation detection optical fiber is placed in the patient's body. After the blood oxygen saturation detection optical fiber is connected to the monitor, it can continuously provide accurate blood oxygen saturation data to clinical physicians.

[0042] like Figure 1 and 4 As shown, this embodiment provides a continuous invasive blood oxygen saturation monitoring device, including a puncture needle 10, an indwelling cannula assembly 20 and a blood oxygen saturation detection optical fiber 30.

[0043] Specifically, the indwelling sheath assembly 20 includes a catheter seat 21 , an indwelling catheter 22 , an introduction tube 23 and a liquid inlet tube 24 .

[0044] Furthermore, a guide channel is provided in the middle of the catheter seat 21 ; the indwelling catheter 22 and the introduction tube 23 are both connected to the catheter seat 21 , and the tip of the puncture needle 10 passes through the guide channel and the indwelling catheter 22 in sequence.

[0045] Furthermore, the detection end of the blood oxygen saturation detection optical fiber 30 passes through the introduction tube 23 and is inserted into the indwelling catheter 22 .

[0046] Furthermore, the liquid inlet pipe 24 is configured to communicate with the introduction pipe 23 .

[0047] Specifically, the guide channel is connected to a first sealing component 26, which is used to seal the guide channel, and the puncture needle 10 passes through the first sealing component 26; the introduction tube 23 is connected to a second sealing component 27, which is used to seal the introduction tube 23, and the blood oxygen saturation detection optical fiber 30 passes through the second sealing component 27.

[0048] In this embodiment, a needle holding handle 11 is provided on the puncture needle 10, and the needle holding handle 11 is fixedly connected to the puncture needle 10. The provision of the needle holding handle 11 can facilitate operation by medical staff, and is convenient.

[0049] During use, a blood vessel is selected, the puncture site is disinfected, and the needle handle 11 is held to insert the puncture needle 10 into the blood vessel, allowing the indwelling catheter 22 to follow the puncture needle 10 into the body. The puncture needle 10 is then withdrawn, and the blood oxygen saturation detection optical fiber 30 is inserted into the blood vessel and connected to a monitor. The inlet tube 24 can be filled with physiological saline, which is then pressurized to maintain positive pressure.

[0050] In this embodiment, the catheter seat 21 , the introduction tube 23 and the liquid inlet tube 24 are all transparent. The transparent design makes it easy for medical staff to observe the internal conditions of the catheter seat 21 , the introduction tube 23 and the liquid inlet tube 24 .

[0051] In this embodiment, a one-way valve (not shown) is provided on the liquid inlet pipe 24. By providing the one-way valve, backflow of the liquid inlet pipe 24 can be avoided, and blood or liquid medicine can be prevented from flowing out of the liquid inlet pipe 24 to the outside.

[0052] In this embodiment, the central axis of the indwelling catheter 22 coincides with the central axis of the guide channel, and the angle between the central axis of the guide channel and the central axis of the introduction tube 23 is an acute angle.

[0053] In this embodiment, the first sealing component 26 is fixed in the guide channel, and the outer wall of the first sealing component 26 is sealed against the inner wall of the guide channel.

[0054] The second sealing member 27 is fixed in the introduction tube 23 , and the outer wall of the second sealing member 27 is sealed against the inner wall of the introduction tube 23 .

[0055] The first sealing component 26 and the second sealing component 27 are both medical rubber plugs.

[0056] Exemplarily, the first sealing component 26 is provided in a cylindrical shape, and the outer wall of the first sealing component 26 is bonded to the inner wall of the guide channel, thereby achieving fixation.

[0057] Exemplarily, the second sealing component 27 is cylindrical, and the outer wall of the second sealing component 27 is bonded to the inner wall of the introduction tube 23 to achieve fixation.

[0058] In some embodiments not shown, the continuous invasive blood oxygen saturation monitoring device further includes an infusion tube (not shown), which is connected to the liquid inlet tube via a quick connector.

[0059] In some embodiments not shown, in this embodiment, a quick connector (not shown) is provided at the end of the liquid inlet tube. By providing the quick connector, medical staff can easily connect the liquid inlet tube to other medical pipelines, which is convenient.

[0060] In some embodiments (not shown), the first sealing member and the second sealing member are both heparin caps.

[0061] like Figure 5 As shown, in some embodiments, the liquid inlet tube 24 is configured to communicate with the catheter adapter 21 .

[0062] The present invention also provides a blood oxygen saturation monitoring system, comprising a monitor and the continuous invasive blood oxygen saturation monitoring device in any of the above embodiments.

[0063] The blood oxygen saturation detection optical fiber is electrically connected to the monitor.

[0064] Although the embodiments of the present application have been shown and described above, the scope of protection of the present invention is not limited thereto, and any changes or substitutions that are not conceivable through creative work should be included in the scope of protection of the present invention; unless expressly stated, any elements, actions or instructions used in this document should not be interpreted as critical or necessary.

Claims

1. A continuous invasive blood oxygen saturation monitoring device, characterized in that: include: Puncture needle, indwelling cannula assembly and blood oxygen saturation detection optical fiber; The indwelling cannula assembly comprises a catheter seat, an indwelling catheter, an introduction tube and a liquid inlet tube; The middle portion of the catheter seat is provided with a guide channel; The indwelling catheter and the introduction tube are both connected to the catheter seat, and the tip of the puncture needle passes through the guide channel and the indwelling catheter in sequence; The detection end of the blood oxygen saturation detection optical fiber passes through the introduction tube and is inserted into the indwelling catheter; The liquid inlet tube is configured to communicate with the introduction tube or the catheter seat; The guide channel is connected to a first sealing component, the first sealing component is used to seal the guide channel, and the puncture needle passes through the first sealing component; The introduction tube is connected to a second sealing component, which is used to seal the introduction tube. The blood oxygen saturation detection optical fiber passes through the second sealing component.

2. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: The puncture needle is provided with a needle holding handle, and the needle holding handle is fixedly connected to the puncture needle.

3. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: The first sealing component and the second sealing component are both heparin caps.

4. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: The catheter seat, the introduction tube and the liquid inlet tube are all transparent.

5. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: The end of the liquid inlet pipe is provided with a quick connector.

6. The continuous invasive blood oxygen saturation monitoring device according to claim 5, characterized in that: A one-way valve is provided on the liquid inlet pipe.

7. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: The central axis of the indwelling catheter coincides with the central axis of the guide channel; The angle between the central axis of the guide channel and the central axis of the introduction pipe is an acute angle.

8. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: The first sealing component is fixed in the guide channel, and the outer wall of the first sealing component is sealed with the inner wall of the guide channel; The second sealing component is fixed in the introduction tube, and the outer wall of the second sealing component is sealed with the inner wall of the introduction tube; The first sealing component and the second sealing component are both medical rubber plugs.

9. The continuous invasive blood oxygen saturation monitoring device according to claim 1, characterized in that: Also includes IV tubing; Wherein, the infusion tube is connected to the liquid inlet tube.

10. A blood oxygen saturation monitoring system, comprising a monitor, characterized in that: Also includes a continuous invasive blood oxygen saturation monitoring device as described in any one of claims 1-9; Wherein, the blood oxygen saturation detection optical fiber is electrically connected to the monitor.

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