Central venous catheter for continuous monitoring of blood glucose

Abstract

The utility model provides a kind of central venous catheter of sustainable monitoring blood glucose, including central venous catheter mechanism, central venous catheter mechanism includes a main guide tube, and the tubular part middle part of main guide tube is equipped with U type holder, and the surface of U type holder is equipped with a plurality of antiskid strips in proper order, and the side wall surface of U type holder is equipped with clamping groove, and one end of clamping groove is equipped with main guide tube, and one end of main guide tube is equipped with sensor sensing head for puncture, by the clamping of the main guide tube and U type holder, the end of main guide tube is realized to extend pre-embedded, the pipe connection of the end of sensor sensing head is implemented by the pipe cutter, in puncture stage, a detection head is punched out by pipe cutter and pipe cutting mouth, and blood glucose data in blood is obtained by using sensor sensing head analysis, and blood glucose is continuously monitored.

Description

Technical Field

[0001] This utility model belongs to the field of venous catheter technology, specifically relating to a central venous catheter for continuous monitoring of blood glucose. Background Technology

[0002] Central venous catheter: Used to measure central venous pressure (CVP) to assess circulatory physiological parameters and estimate fluid levels. Because of this specific use, central venous pressure is often mistakenly referred to as CVC in Taiwanese hospitals.

[0003] The "Central Venous Catheter Drainage Connector and Central Venous Catheter Drainage Device" disclosed in application number "CN202123333798.6" is also an increasingly mature technology. This utility model discloses a central venous catheter drainage connector and a central venous catheter drainage device, relating to the field of drainage products. It provides a central venous catheter drainage connector that can easily connect a central venous catheter to a drainage bag. The central venous catheter drainage connector includes a rigid sleeve and an elastic sleeve connected together. The rigid sleeve has a threaded hole, and the elastic sleeve has a tapered hole communicating with the threaded hole. The threaded hole of the central venous catheter drainage connector matches the threaded connector of the central venous catheter, and the tapered hole of the central venous catheter drainage connector matches the connector of the connecting tube. By screwing the rigid sleeve onto the central venous catheter, and then inserting the connector of the connecting tube into the tapered hole and expanding the elastic sleeve, the central venous catheter and drainage bag can be connected. The connection is convenient and quick, and leakage at the connection point can be avoided. By applying the central venous catheter drainage connector to existing central venous catheter drainage devices, a central venous catheter drainage device can be obtained. However, this device still has the following drawbacks: Currently, blood glucose monitoring for patients in the intensive care unit relies on external technology, which has disadvantages such as long testing time and multiple blood draws. Given the critical nature of critically ill patients, real-time blood glucose monitoring has become a clinical problem that hinders the assessment of their condition. Central venous catheters are a common invasive procedure in the ICU. Considering that their tip is located in a deep vein, with fast blood flow and rapid turnover, and no need for external blood draws, optimizing the design of the central venous catheter and adding the function of real-time blood glucose monitoring can better meet clinical needs, reduce patient suffering, improve diagnostic efficiency, and improve clinical treatment outcomes. Utility Model Content

[0004] The purpose of this invention is to provide a central venous catheter for continuous monitoring of blood glucose, aiming to solve the problems of existing technologies that rely on in vitro technology for blood glucose monitoring in intensive care units, which have drawbacks such as long detection time and multiple blood draws. Given the critical condition of critically ill patients, real-time blood glucose monitoring has become a clinical problem that hinders the assessment of critically ill patients' conditions. Central venous catheters are a common invasive procedure in the ICU, and considering the characteristics of their tip being located in a deep vein, with fast blood flow and rapid turnover, and no need for in vitro blood draws, this invention addresses these issues.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a central venous catheter mechanism, the central venous catheter mechanism including a main guide tube, a U-shaped clamp provided in the middle of the main guide tube, a plurality of anti-slip strips sequentially provided on the surface of the U-shaped clamp, a clamping groove provided on the side wall surface of the U-shaped clamp, the main guide tube being provided at one end of the clamping groove, and a sensor head for puncture being provided at one end of the main guide tube.

[0006] As a preferred embodiment of this utility model: a tube cutter is provided at the top center of the sensor head, a cutter is provided at the bottom of the tube cutter, and a connecting base is provided at the bottom center of the cutter;

[0007] The bottom of the connecting base is fitted to the bottom of the main guide tube.

[0008] As a preferred embodiment of this utility model: the inner side of the U-shaped clamp has a blood glucose sensor, and the blood glucose sensor is connected to a wireless transceiver, with one end of the wireless transceiver sensing and setting with one end of the tube cutter.

[0009] As a preferred embodiment of this utility model: the end of the main guide tube is provided with a three-way mechanism;

[0010] The three-way mechanism includes a triangular tube installed at the end of the main guide tube, with an access conduit connected to each end of the triangular tube, and trapezoidal gaskets at both ends of the access conduit.

[0011] The trapezoidal gasket has a tapered sleeve at one end;

[0012] The tapered sleeve has an assembly piece at one end, an adjusting cylinder at one end of the assembly piece, and an adjusting mechanism at one end of the triangular tube.

[0013] The adjustment mechanism includes a guide tube disposed at the end of the main guide tube, the end of which is provided with a sensing block, and the surface of the sensing block is provided with puncture needles in sequence.

[0014] As a preferred embodiment of this utility model: the top of the sensing block is provided with a pressing base, the bottom end of the pressing base is inserted and connected to the puncture needle, and the bottom end of the puncture needle is inserted and connected to the outer wall of the branch tube.

[0015] As a preferred embodiment of this utility model: a sampling tube is connected to the back of the puncture needle, and a sensing mechanism is connected to the end of the sampling tube.

[0016] The sensing mechanism has a control base at one end, and a bonding pad is provided at the top center of the control base. The surface of the bonding pad is provided with a display screen.

[0017] As a preferred embodiment of this utility model: a drive knob is provided at the center of the top of the control base, and an adjustment button is provided on the side of the drive knob.

[0018] As a preferred embodiment of the present invention: the bottom center of the control base is provided with a zig bracket, and the surface of the zig bracket is provided with an adjustment opening;

[0019] The control base is equipped with a sensing analyzer on its side, and the sensing analyzer is equipped with sensing electrode plates at its end.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1) By using the main guide tube and U-shaped clamp, the extension and pre-embedding are achieved at one end of the main guide tube. The tube cutter is used to connect the sensor head to one end. During the puncture stage, the tube cutter and the cut end are used to puncture a detection head to facilitate the analysis of blood glucose data by the sensor head and continuous monitoring of blood glucose.

[0022] 2) A trapezoidal pad is used to connect the central venous catheter branches to the conical cannulas on both sides. Using a sensing block and a puncture needle, personnel need to press the puncture needle to puncture the outer wall of the fitting. This allows for the additional sensing and analysis of liquid blood glucose levels, and unified analysis of information. Hydrogen peroxide generated by electrons can be measured using electrochemical methods. The blood glucose sensor contains electrodes, one of which is modified with a special material to give it high catalytic activity. When hydrogen peroxide in the sample comes into contact with the modified electrode, an electrochemical reaction occurs, generating an electric current. The magnitude of the current is proportional to the hydrogen peroxide concentration, thus indirectly measuring the blood glucose concentration. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the three-way mechanism of this utility model;

[0026] Figure 3 This is a schematic diagram of the sensing mechanism structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the control base structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the cutter structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the sampling tube structure of this utility model.

[0030] In the diagram: 1. Central venous catheter mechanism; 11. Main guiding tube; 12. U-shaped clamp; 13. Anti-slip strip; 14. Clamping groove; 15. Sensor head; 16. Tube cutter; 17. Incision tool; 18. Connecting base; 19. Wireless transceiver;

[0031] 2. Tee mechanism; 21. Triangular tube; 22. Connecting conduit; 23. Trapezoidal gasket; 24. Tapered sleeve; 25. Assembly piece;

[0032] 26. Adjusting cylinder; 3. Adjusting mechanism; 31. Guide tube; 32. Sensing block; 33. Puncture needle; 34. Pressing base; 35. Sampling tube;

[0033] 4. Sensing mechanism; 41. Control base; 42. Fitting pad; 43. Display screen; 44. Drive knob; 45. Adjustment button; 46. Z-shaped bracket; 47. Adjustment opening; 48. Sensing analyzer; 49. Sensing electrode plate. Detailed Implementation

[0034] 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 protection scope of the present utility model.

[0035] Please see Figure 1 - Figure 6 The present invention provides the following technical solution: a central venous catheter for continuous monitoring of blood glucose, including a central venous catheter mechanism 1, the central venous catheter mechanism 1 including a main guide tube 11, a U-shaped clamp 12 provided in the middle of the main guide tube 11, a plurality of anti-slip strips 13 provided in sequence on the surface of the U-shaped clamp 12, a clamping groove 14 opened on the side wall surface of the U-shaped clamp 12, the main guide tube 11 provided at one end of the clamping groove 14, and a sensor head 15 for puncture provided at one end of the main guide tube 11.

[0036] In this embodiment: a pipe cutter 16 is provided at the top center of the sensor head 15, a cutter 17 is provided at the bottom of the pipe cutter 16, and a connecting base 18 is provided at the bottom center of the cutter 17.

[0037] The bottom of the connecting base 18 is fitted to the bottom of the main guide tube 11.

[0038] The tube cutter 16 and cutter 17 used are mainly for sealing, which causes the sensor head 15 to extend into the inner wall of the main guide tube 11 for blood glucose analysis.

[0039] In this embodiment: the inner side of the U-shaped clamp 12 has a blood glucose sensor, which is connected to the wireless transceiver 19 by one end of the wireless transceiver 19 and one end of the tube cutter 16.

[0040] The blood glucose sensor analyzes the blood glucose information, and finally the wireless transceiver 19 senses the blood glucose information and transmits it wirelessly.

[0041] In this embodiment: a three-way mechanism 2 is provided at the end of the main guide tube 11;

[0042] The three-way mechanism 2 includes a triangular tube 21 installed at the end of the main guide tube 11, with an access conduit 22 connected to both ends of the triangular tube 21, and trapezoidal gaskets 23 provided at both ends of the access conduit 22.

[0043] The trapezoidal gasket 23 has a tapered sleeve 24 at one end;

[0044] The tapered sleeve 24 is provided with an assembly piece 25 at its end, and the assembly piece 25 is provided with an adjusting cylinder 26 at its end. The triangular tube 21 is provided with an adjusting mechanism 3 at its end.

[0045] The adjustment mechanism 3 includes a guide tube 31 located at the end of the main guide tube 11, a sensing block 32 located at the end of the guide tube 31, and puncture needles 33 sequentially located on the surface of the sensing block 32.

[0046] The main purpose of using the sensing block 32 and the puncture needle 33 is to puncture the column guide tube 11 so that the puncture needle 33, which is used to detect blood glucose, can be inserted into the inner wall of the tubing, fully contact the blood, and measure blood glucose.

[0047] In this embodiment: the top of the sensing block 32 is provided with a pressing base 34, the bottom end of the pressing base 34 is inserted and connected to the puncture needle 33, and the bottom end of the puncture needle 33 is inserted and connected to the outer wall of the branch tube.

[0048] The puncture needle 33 is used to penetrate the inner wall of the branch tube to achieve continuous blood collection and analysis to obtain blood glucose information.

[0049] In this embodiment: the back of the puncture needle 33 is connected to a sampling tube 35, and the end of the sampling tube 35 is connected to a sensing mechanism 4.

[0050] The sensing mechanism 4 has a control base 41 at one end, and a bonding pad 42 is provided at the top center of the control base 41. The surface of the bonding pad 42 is provided with a display screen 43.

[0051] The control base 41 is used as the other circuit structure for blood glucose analysis, where the analysis components are placed, and the specific blood glucose value is displayed in conjunction with the display screen 43.

[0052] In this embodiment: a drive knob 44 is provided at the center of the top of the control base 41, and an adjustment button 45 is provided on the side of the drive knob 44.

[0053] The drive knob 44 is used to set the time and number of blood glucose tests, mainly to set the blood glucose sampling frequency within a reasonable time.

[0054] In this embodiment: a zig-shaped bracket 46 is provided at the bottom center of the control base 41, and an adjustment opening 47 is provided on the surface of the zig-shaped bracket 46;

[0055] A sensing analyzer 48 is provided on the side of the control base 41, and a sensing electrode plate 49 is provided at the end of the sensing analyzer 48.

[0056] The sensor analyzer 48 is used to sense the data.

[0057] In practical use, the first step is to install the detection structure;

[0058] Personnel use the slot of the clamping groove 14 to fit one end of the main guide tube 11, and embed the main guide tube 11 in the U-shaped clamp 12 according to the slot of the clamping groove 14.

[0059] The analysis plan involves inserting the tube cutter 16 into one end of the main guide tube 11, with the area of ​​the sensor head 15 aligned with the tube cutter 16. The tube cutter 16 is pressed downwards, and the tube is inserted into the main guide tube 11 through the tube. The connecting base 18 is used for clamping, and the punctured blood adheres to the inner wall of the tube. The blood glucose level is detected by the sensor head 15.

[0060] Step Two: Wireless Monitoring of Information;

[0061] Wireless data transmission and reception are achieved by receiving data from the sensor head 15 using a wireless transceiver 19. Blood glucose information is obtained from hydrogen peroxide generated by electrons, whose concentration can be measured electrochemically. The blood glucose sensor contains electrodes, one of which is modified with a special material to give it high catalytic activity. When hydrogen peroxide in the sample comes into contact with the modified electrode, an electrochemical reaction occurs, generating a current. The magnitude of the current is proportional to the hydrogen peroxide concentration, thereby indirectly measuring the glucose concentration in the blood.

[0062] Step 3: Connecting the information;

[0063] Using the sensing block 32 as a dual-point blood glucose detector, the user can press down on the base 34 to move it, and use the puncture needle 33 to pierce the butyl rubber stopper's detection strip. After piercing, it connects to one end of the sampling tube 35, allowing the mouth and the sampling to be sensed. This enables analysis at one end of the sensing electrode 49. The signal is accepted by the sensing analyzer 48. By controlling the sensing of the base 41, data is detected through one end of the sensing electrode 49. The blood glucose analyzer's own analysis chip and circuit work together to analyze and obtain blood glucose data, which is finally displayed on the surface of the display screen 43.

[0064] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A central venous catheter for sustainable monitoring of blood glucose, comprising a central venous catheter mechanism (1), characterized in that, The central venous catheter mechanism (1) includes a main guide tube (11), a U-shaped clamp (12) is provided in the middle of the main guide tube (11), a number of anti-slip strips (13) are provided on the surface of the U-shaped clamp (12), a clamping groove (14) is provided on the side wall surface of the U-shaped clamp (12), the main guide tube (11) is provided at one end of the clamping groove (14), and a sensor head (15) for puncture is provided at one end of the main guide tube (11).

2. The central venous catheter capable of continuously monitoring blood glucose according to claim 1, wherein: The sensor head (15) has a pipe cutter (16) at the top center, a cutter (17) at the bottom end, and a connecting base (18) at the bottom center of the cutter (17). The bottom of the connecting base (18) is fitted to the bottom of the main guide tube (11).

3. The central venous catheter capable of continuously monitoring blood glucose according to claim 1, wherein: The U-shaped clamp (12) has a blood glucose sensor on its inner side. The blood glucose sensor is connected to a wireless transceiver (19) at one end, which is connected to a tube cutter (16) at the other end.

4. The central venous catheter capable of continuously monitoring blood glucose according to claim 2, wherein: The main guide tube (11) is provided with a three-way mechanism (2) at its end; The three-way mechanism (2) includes a triangular tube (21) installed at the end of the main guide tube (11), and the two ends of the triangular tube (21) are respectively connected to the access conduit (22), and the two ends of the access conduit (22) are provided with trapezoidal gaskets (23); The trapezoidal gasket (23) is provided with a tapered sleeve (24) at one end; The tapered sleeve (24) has an assembly piece (25) at one end, the assembly piece (25) has an adjusting cylinder (26) at one end, and the triangular tube (21) has an adjusting mechanism (3) at one end. The adjustment mechanism (3) includes a guide tube (31) disposed at the end of the main guide tube (11), and a sensing block (32) is provided at the end of the guide tube (31), and a puncture needle (33) is sequentially disposed on the surface of the sensing block (32).

5. The central venous catheter capable of continuously monitoring blood glucose according to claim 4, characterized in that: The top of the sensing block (32) is provided with a pressing base (34), the bottom end of the pressing base (34) is inserted and connected to the puncture needle (33), and the bottom end of the puncture needle (33) is inserted and connected to the outer wall of the branch tube.

6. A central venous catheter for continuous monitoring of blood glucose according to claim 5, characterized in that: The back of the puncture needle (33) is connected to a sampling tube (35), and the end of the sampling tube (35) is connected to a sensing mechanism (4). The sensing mechanism (4) has a control base (41) at one end, and a bonding pad (42) is provided at the top center of the control base (41). The surface of the bonding pad (42) is provided with a display screen (43).

7. A central venous catheter for continuous monitoring of blood glucose according to claim 6, characterized in that: The control base (41) has a drive knob (44) at the top center, and an adjustment button (45) is provided on the side of the drive knob (44).

8. A central venous catheter for continuous monitoring of blood glucose according to claim 7, characterized in that: The control base (41) is provided with a zig bracket (46) at the bottom center, and the surface of the zig bracket (46) is provided with an adjustment opening (47); The control base (41) is provided with a sensing analyzer (48) on its side, and the end of the sensing analyzer (48) is provided with a sensing electrode plate (49).

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