Blood concentration controllable propofol continuous infusion administration device for intraoperative anesthesia

Abstract

The utility model discloses a blood concentration controllable propofol continuous infusion administration device for intraoperative anesthesia. The device comprises an injection control structure; the two sets of injection clamping structures are both assembled on the injection control structure, and each set of injection clamping structure is provided with a sliding position driving clamping end and a retention clamping end; each of the basic injector structure and the supplementary injector structure is provided with an infusion pushing end and a needle cylinder limiting end; the two sets of infusion pushing ends are detachably and fixedly connected with the two sets of sliding position driving clamping ends correspondingly, and the two sets of needle cylinder limiting ends are detachably and fixedly connected with the two sets of fixing clamping ends correspondingly. The technical problems that in the prior art, when a pumping syringe needs to stop injection midway to supplement propofol medicine, corresponding continuous intravenous infusion based on blood concentration is likely to be interrupted, then dynamic deviation exists in the medicine infusion amount within a certain period of subsequent time, and smooth operation is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical anesthesia equipment, in particular to a blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia. Background Art

[0002] At present, propofol is widely used as a medical intravenous anesthetic for inducing and maintaining anesthesia due to its excellent performance in rapid induction and elimination, short duration of effect, mild recovery after anesthesia, few side effects, and no teratogenic effects. Since propofol is volatile, it can be metabolized through the respiratory system, that is, propofol directly derived from the lung blood can be detected in the exhaled gas. Existing studies have shown that there is a certain correlation between the propofol concentration in the exhaled gas and the propofol concentration in the plasma. Therefore, the use of exhaled gas can achieve real-time non-invasive monitoring of the blood drug concentration in the human body based on a specific correlation coefficient.

[0003] In the prior art, continuous intravenous infusion can be achieved for intraoperative anesthesia of patients based on the monitored blood drug concentration by means of a pumping syringe. However, due to the uncertainty of the duration of the patient's surgery, the pre-storage amount of propofol in the syringe is difficult to accurately match the final dosage, which can easily lead to waste of propofol or the need to stop the injection midway to replenish the propofol, resulting in interruption of the corresponding continuous intravenous infusion based on the blood drug concentration, which in turn leads to dynamic deviations in the subsequent drug infusion amount within a certain period of time, affecting the smooth progress of the operation. Utility Model Content

[0004] To this end, the utility model provides a blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia to solve the technical problem in the prior art that when the pumping syringe needs to stop injecting midway to replenish the propofol agent, the corresponding continuous intravenous infusion based on the blood concentration is easily interrupted, which leads to dynamic deviations in the subsequent drug infusion volume within a certain period of time, affecting the smooth progress of the operation.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia, comprising:

[0007] Injection control structure;

[0008] Injection clamping structures are provided in two groups, both groups of the injection clamping structures are mounted on the injection control structure, and each group of the injection clamping structures has a sliding driving clamping end and a fixed clamping end;

[0009] The basic syringe structure and the supplementary syringe structure both have an infusion pushing end and a syringe limiting end which are connected by a sliding assembly;

[0010] The infusion pushing end of the basic syringe structure and the infusion pushing end of the supplementary syringe structure are respectively and one by one correspondingly detachably fixedly connected to the sliding drive clamping ends of the two groups of injection clamping structures, and the syringe limiting end of the basic syringe structure and the syringe limiting end of the supplementary syringe structure are respectively and one by one correspondingly detachably fixedly connected to the retaining clamping ends of the two groups of injection clamping structures.

[0011] On the basis of the above technical solution, the utility model is further described as follows:

[0012] As a further solution of the present invention, the injection control structure is built-inly equipped with two groups of screw drive structures, and the drive motors of the two groups of screw drive structures are respectively connected to the built-in electronic control modules of the injection control structure through circuits, and the two groups of screw drive structures respectively have drive sliders connected to the corresponding transmission assemblies of their drive motors; the two groups of drive sliders are respectively fixedly connected to the two groups of sliding drive clamping ends in a one-to-one correspondence.

[0013] As a further solution of the utility model, the injection clamping structure includes a pushing drive seat, a syringe fixing seat and a guide slide rail seat;

[0014] The guide rail seat is fixedly mounted on the injection control structure, and the extension direction of the guide rail seat is the same as the linear displacement direction of the driving slider;

[0015] The push drive seat is slidably mounted on the guide rail seat, and the push drive seat and the drive slider are connected by a transmission fixed assembly;

[0016] The syringe fixing seat is fixedly mounted on the injection control structure;

[0017] The sliding drive clamping end is connected to the pushing drive seat by a transmission fixed assembly, and the fixed clamping end is connected to the syringe fixing seat by a transmission fixed assembly.

[0018] As a further solution of the utility model, the injection clamping structure further includes a positioning clamping seat and a sliding clamping seat;

[0019] The pushing drive seat and the syringe fixing seat are both fixedly mounted with the positioning clamping seat at the bottom of one side end facing away from the injection control structure, and the pushing drive seat and the syringe fixing seat are also slidably mounted with a sliding clamping seat at the upper position corresponding to the positioning clamping seat;

[0020] The positioning clamping seat and the sliding clamping seat assembled on the pushing drive seat correspondingly form the sliding drive clamping end, and the positioning clamping seat and the sliding clamping seat assembled on the syringe fixing seat correspondingly form the retaining clamping end.

[0021] As a further solution of the utility model, the pushing drive seat and the syringe fixing seat are also fixedly assembled with a spring seat at the top of the side end facing away from the injection control structure, and the elastic end of the spring seat is connected and fixedly assembled with the sliding clamping seat through a transmission rod body.

[0022] As a further solution of the present invention, an inner side portion of the positioning clamping seat and an inner side portion of the sliding clamping seat are both correspondingly provided with arc-shaped clamping grooves.

[0023] As a further solution of the present invention, the arc-shaped clamping groove is arranged to be gradually narrowed from the outside to the inside.

[0024] As a further solution of the present invention, the specifications and dimensions of the basic syringe structure are larger than the specifications and dimensions of the supplementary syringe structure.

[0025] As a further solution of the utility model, it also includes:

[0026] polymeric infusion tubing body;

[0027] The output end of the basic syringe structure and the output end of the supplemental syringe structure are both connected to the polymeric infusion tubing body, which has an infusion output end.

[0028] The utility model has the following beneficial effects:

[0029] The device can further assist in assembling a supplementary syringe structure on the basis of assembling an established basic syringe structure through an injection control structure, and complete the infusion drive of the basic syringe structure and the supplementary syringe structure by means of a screw drive structure and an injection clamping structure. Thus, the basic syringe structure and the supplementary syringe structure can be used to synchronously and continuously infuse the drug, thereby improving the accuracy of the propofol dosage adjusted in real time based on the blood drug concentration and avoiding excessive errors. At the same time, when the pre-storage amount of the drug is insufficient, one of the syringe structures can be selected for replenishment according to the actual amount of the drug, and the other group of syringe structures can continue to infuse according to the amount of the drug to be infused, thereby making it possible to prevent the continuous intravenous infusion from being interrupted, thereby facilitating the stable and smooth completion of the operation, and effectively improving the overall functional flexibility and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for the implementation methods or the description of the prior art will be briefly introduced below. The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the utility model without affecting the effects and purposes that can be achieved by the utility model.

[0031] Figure 1 This is a schematic diagram of the overall axonometric structure of a blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia provided by an embodiment of the utility model.

[0032] Figure 2 A schematic diagram of the assembly structure of a screw drive structure and an injection clamping structure in a blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia provided by an embodiment of the utility model.

[0033] Figure 3 A schematic diagram of the partial structure of the injection clamping structure in the blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia provided by an embodiment of the utility model.

[0034] Figure 4 This is a schematic diagram of the assembly structure of the basic syringe structure in the blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia provided by an embodiment of the utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] Injection control structure 1;

[0037] Screw drive structure 2: drive slider 21;

[0038] Injection clamping structure 3: push drive seat 31, syringe fixing seat 32, guide slide rail seat 33, positioning clamping seat 34, sliding clamping seat 35, spring seat 36, transmission rod body 37, arc-shaped clamping groove 38;

[0039] Basic syringe structure 4: infusion pushing end 41, syringe limiting end 42;

[0040] Supplementary syringe structure 5; polymer infusion tube body 6. DETAILED DESCRIPTION

[0041] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The terms such as "upper", "lower", "left", "right", and "middle" used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of the present invention without substantially changing the technical content.

[0043] like Figures 1 to 4 As shown, the embodiment of the utility model provides a blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia, including an injection control structure 1, a screw drive structure 2, an injection clamping structure 3, a basic syringe structure 4 and a supplementary syringe structure 5, which is used to further assist in assembling the supplementary syringe structure 5 on the basis of assembling the established basic syringe structure 4 through the injection control structure 1, and complete the infusion drive of the basic syringe structure 4 and the supplementary syringe structure 5 by means of the screw drive structure 2 and the injection clamping structure 3, thereby the basic syringe structure 4 and the supplementary syringe structure 5 can be used to synchronously and continuously infuse the drug, improve the accuracy of the propofol dosage adjusted in real time based on the blood concentration, avoid excessive errors, and at the same time, when the pre-storage amount of the drug is insufficient, one of the syringe structures can be selected to supplement according to the actual amount of the drug, and the other group of syringe structures can continue to infuse according to the amount of the drug to be infused, thereby making it possible to interrupt the continuous intravenous infusion, thereby facilitating the stable and smooth completion of the operation, and effectively improving the overall functional flexibility and practicality of the device. The specific settings are as follows:

[0044] Please refer to Figure 1 to Figure 2 The injection control structure 1 is equipped with two sets of screw drive structures 2, and the drive motors of the two sets of screw drive structures 2 are respectively connected to the built-in electronic control module of the injection control structure 1 through circuits, and the two sets of screw drive structures 2 have drive sliders 21 respectively connected to the corresponding transmission assemblies of their drive motors, so as to use the injection control structure 1 to control the two sets of drive sliders 21 to perform predetermined linear displacement along a predetermined direction through transmission action.

[0045] Please refer to Figures 1 to 4The injection clamping structure 3 is provided with two groups, and each group of the injection clamping structure 3 includes a pushing drive seat 31, a syringe fixing seat 32, a guide slide seat 33, a positioning clamping seat 34 and a sliding clamping seat 35; wherein, the pushing drive seat 31 is slidably assembled on the guide slide seat 33, and the guide slide seat 33 is fixedly assembled on the injection control structure 1, and the extension direction of the guide slide seat 33 is the same as the linear displacement direction of the driving slider 21, and the driving slider 21 and the pushing drive seat 31 are connected by a transmission fixed assembly, so as to utilize the displacement driving action of the driving slider 21 to synchronously drive the pushing drive seat 31 to slide linearly along the guide slide seat 33.

[0046] The syringe fixing seat 32 is fixedly assembled on the injection control structure 1, and the pushing drive seat 31 and the syringe fixing seat 32 are fixedly assembled with a positioning clamping seat 34 at the bottom of the side end facing away from the injection control structure 1, and the pushing drive seat 31 and the syringe fixing seat 32 are also slidably assembled with a sliding clamping seat 35 at the upper position corresponding to the positioning clamping seat 34, so as to utilize the positioning clamping seat 34 and the sliding clamping seat 35 to cooperate with each other to form a detachable sliding drive clamping end and a detachable fixed clamping end, and further realize the infusion drive of the basic syringe structure 4 and the supplementary syringe structure 5 through the detachable sliding drive clamping end and the detachable fixed clamping end.

[0047] For details, please refer to Figure 2 and Figure 4 The basic syringe structure 4 and the supplementary syringe structure 5 have the same structure but different sizes, and the output ends of the basic syringe structure 4 and the supplementary syringe structure 5 are both connected to the polymer infusion tube body 6, so as to use the basic syringe structure 4 as the main infusion structure to always maintain quantitative continuous infusion, and use the supplementary syringe structure 5 as the slave infusion structure to flexibly supplement the infusion based on the real-time blood drug concentration and the quantitative infusion amount, thereby improving the accuracy of the propofol dosage adjusted in real time based on the blood drug concentration to avoid excessive errors, and at the same time, when the pre-storage amount of the drug is insufficient, the drug can be added through the supplementary syringe structure 5 according to the actual amount of the drug, while the basic syringe structure 4 continues to infuse according to the amount of drug to be infused based on the real-time blood drug concentration, and then the basic syringe structure 4 can be switched to add the drug, thereby making the continuous intravenous infusion of the propofol drug unnecessary to be interrupted, which is more conducive to the stable and smooth completion of the operation and improves the overall functional practicality.

[0048] Taking the basic syringe structure 4 as an example, the basic syringe structure 4 includes an infusion pushing end 41 and a syringe limiting end 42 which are connected by a sliding assembly; wherein, the infusion pushing end 41 is assembled in a locking position with the sliding driving clamping end corresponding to the pushing driving seat 31, and the syringe limiting end 42 is assembled in a locking position with the retaining clamping end corresponding to the syringe fixing seat 32.

[0049] As a preferred solution of this embodiment, the pushing drive seat 31 and the syringe fixing seat 32 are also fixedly assembled with a spring seat 36 at the top of the side end facing away from the injection control structure 1, and the elastic end of the spring seat 36 is connected to the sliding clamping seat 35 through a transmission rod body 37. The elastic effect of the spring seat 36 is used to significantly improve the clamping stability between the sliding clamping seat 35 and the positioning clamping seat 34, thereby effectively enhancing the infusion stability of the syringe structure.

[0050] As another preferred solution of this embodiment, please continue to refer to Figure 3 The inner side of the positioning clamping seat 34 and the inner side of the sliding clamping seat 35 are both correspondingly provided with arc-shaped clamping grooves 38, so as to utilize the arc-shaped clamping grooves 38 to further significantly improve the clamping stability of the end of the syringe structure.

[0051] Further preferably, the arc-shaped retaining groove 38 is gradually narrowed from the outside to the inside, so that the arc-shaped retaining groove 38 can be more flexibly adapted to the ends of syringe structures of different thicknesses, thereby improving functional practicality.

[0052] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia, characterized in that: include: Injection control structure; Injection clamping structures are provided in two groups, both groups of the injection clamping structures are mounted on the injection control structure, and each group of the injection clamping structures has a sliding driving clamping end and a fixed clamping end; The basic syringe structure and the supplementary syringe structure both have an infusion pushing end and a syringe limiting end which are connected by a sliding assembly; The infusion pushing end of the basic syringe structure and the infusion pushing end of the supplementary syringe structure are respectively and one by one correspondingly detachably fixedly connected to the sliding drive clamping ends of the two groups of injection clamping structures, and the syringe limiting end of the basic syringe structure and the syringe limiting end of the supplementary syringe structure are respectively and one by one correspondingly detachably fixedly connected to the retaining clamping ends of the two groups of injection clamping structures.

2. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 1, characterized in that: The injection control structure is built-inly equipped with two groups of screw drive structures, and the drive motors of the two groups of screw drive structures are respectively connected to the built-in electronic control modules of the injection control structure through circuits, and the two groups of screw drive structures respectively have drive sliders connected to the corresponding transmission assemblies of their drive motors; the two groups of drive sliders are respectively fixedly connected to the two groups of sliding drive clamping ends in a one-to-one correspondence.

3. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 2, characterized in that: The injection clamping structure comprises a pushing drive seat, a syringe fixing seat and a guide slide rail seat; The guide rail seat is fixedly mounted on the injection control structure, and the extension direction of the guide rail seat is the same as the linear displacement direction of the driving slider; The push drive seat is slidably mounted on the guide rail seat, and the push drive seat and the drive slider are connected by a transmission fixed assembly; The syringe fixing seat is fixedly mounted on the injection control structure; The sliding drive clamping end is connected to the pushing drive seat by a transmission fixed assembly, and the fixed clamping end is connected to the syringe fixing seat by a transmission fixed assembly.

4. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 3, characterized in that: The injection clamping structure also includes a positioning clamping seat and a sliding clamping seat; The pushing drive seat and the syringe fixing seat are both fixedly mounted with the positioning clamping seat at the bottom of one side end facing away from the injection control structure, and the pushing drive seat and the syringe fixing seat are also slidably mounted with a sliding clamping seat at the upper position corresponding to the positioning clamping seat; The positioning clamping seat and the sliding clamping seat assembled on the pushing drive seat correspondingly form the sliding drive clamping end, and the positioning clamping seat and the sliding clamping seat assembled on the syringe fixing seat correspondingly form the retaining clamping end.

5. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 4, characterized in that: The push drive seat and the syringe fixing seat are also fixedly assembled with a spring seat at the top of the side end facing away from the injection control structure. The elastic end of the spring seat is connected and fixedly assembled with the sliding clamping seat through a transmission rod body.

6. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 4, characterized in that: The inner side of the positioning clamping seat and the inner side of the sliding clamping seat are both correspondingly provided with arc-shaped clamping grooves.

7. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 6, characterized in that: The arc-shaped clamping groove is gradually narrowed from the outside to the inside.

8. The blood concentration controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 1, characterized in that: The basic syringe structure has dimensions that are greater than the dimensions of the supplemental syringe structure.

9. The blood concentration-controllable propofol continuous infusion drug delivery device for intraoperative anesthesia according to claim 1 or 8, characterized in that: Also includes: polymeric infusion tubing body; The output end of the basic syringe structure and the output end of the supplemental syringe structure are both connected to the polymeric infusion tubing body, which has an infusion output end.

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