Auxiliary pressurizing device for groin blood sampling

Abstract

The invention provides a groin blood sampling auxiliary pressurizing device which comprises a switching body capable of being connected with a needle cylinder body in a sleeved mode, and a pressurizing body is further arranged between the switching body and the groin. The pressurizing body comprises a double-circular-tube structure, an inner tube and an outer tube of the double-circular-tube structure are screwed together, four pressure strain gauges which are evenly distributed around the circumference are arranged on the outer ring of the inner tube, a space is reserved between the inner tube and the outer tube, the four pressure strain gauges are located in the space and connected to form a bridge type circuit, and the bridge type circuit is connected with a PLC. An air bag is arranged on the bottom face of the pressurizing body and connected with an air source through an electromagnetic valve, and the electromagnetic valve is connected with a PLC. And the PLC is connected with a display. According to the pressurizing body, the four pressure strain gauges are adopted to form a bridge type circuit to collect the pressure of the groin, the collected pressure value is sent to the PLC, the PLC is used for monitoring and adjusting the pressure, the pressure applied to the groin area is controlled, and blood collection is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care devices, and in particular to an auxiliary pressurizing device for groin blood sampling. Background Art

[0002] Blood collection is a routine operation in medical diagnosis, especially when blood tests are required. The groin area is often the preferred site for blood collection due to its rich blood vessels. However, pressurization control during blood collection is crucial to reduce patient pain, ensure blood sample quality, and improve blood collection efficiency. There are the following technical defects: The pressurization operation of the groin area during blood collection mainly relies on the experience of medical staff and lacks standardized and precisely controlled auxiliary tools.

[0003] Therefore, how to design an auxiliary pressurization device for groin blood sampling has become an urgent problem to be solved. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides an auxiliary pressurizing device for groin blood sampling to solve at least one of the above technical problems.

[0005] The technical solution of the present invention is: an auxiliary pressurizing device for blood sampling in the groin, comprising an adapter body that can be sleeved with a syringe barrel, a pressurizing body is also arranged between the adapter body and the groin, the adapter body is a three-section barrel structure, and the three-section barrel structure is a cylindrical barrel, a truncated cone tube, and a round tube from top to bottom, the top surface of the cylindrical barrel is open, the opening is sleeved with the barrel of the syringe, the bottom surface of the cylindrical barrel is connected to the small end of the truncated cone tube, and the large end of the truncated cone tube is connected to the round tube; the pressurizing body comprises a double-circular tube structure, the inner tube and the outer tube of the double-circular tube structure are screwed together, and the outer ring of the inner tube is provided with four pressure-suppressing parts evenly distributed around the circumference There is a space between the inner tube and the outer tube, four pressure strain gauges are located in the space, the four pressure strain gauges are connected into a bridge circuit, and the bridge circuit is connected to the PLC controller; an air bag is arranged on the bottom of the pressurized body, the air bag is connected to the air source through a solenoid valve, and the solenoid valve is connected to the PLC controller; the PLC controller is connected to the display, and there is a user operation interface on the display; the pressure adjustment parameters are preset in the PLC controller, and the pressure is adjusted within a certain range by comparing the detected pressure with the preset pressure; the user can set different pressurization parameters according to different blood collection needs.

[0006] The present invention adopts an adapter to respectively connect the barrel and the pressurizing body of the syringe. The pressurizing body adopts four pressure strain gauges to form a bridge circuit to collect the pressure of the groin, and the collected pressure value is sent to the PLC controller. The PLC controller is used to monitor and adjust the pressure to ensure the accuracy of pressurization; the inflation and deflation of the airbag is controlled by the PLC controller to control the pressure applied to the groin area; automatic pressure adjustment is achieved by the PLC controller to reduce human errors and facilitate blood collection; the bridge circuit can provide real-time feedback on the pressurization status to ensure that medical staff can adjust the operation in time; the user interface of the operation interface and the display is user-friendly, which simplifies the operation process of medical staff and reduces dependence on experience; the standardized pressurization process reduces the blood collection time and improves the overall work efficiency; with innovative automatic pressure control technology and user-friendly design, an efficient, accurate and comfortable solution is provided for the blood collection process; the device is expected to be widely used in the medical field to improve the blood collection experience and improve the quality of medical care. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a usage state diagram of the present invention.

[0008] Figure 2 It is the front view of the adapter of the present invention.

[0009] Figure 3 It is a schematic diagram of the internal structure of the pressurized body of the present invention.

[0010] In the figure: 1. adapter body; 2. pressurizing body; 3. pressure strain gauge; 4. aviation socket; 5. connecting ring tube; 6. airbag; 201. inner tube; 202. outer tube; 501. third through hole. DETAILED DESCRIPTION

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] See also Figure 1-3 The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0013] Embodiment 1: An auxiliary pressure device for groin blood sampling, referring to Figure 1 , Figure 3 , including an adapter body 1 that can be sleeved with a syringe barrel, a pressurizing body 2 is also arranged between the adapter body 1 and the groin, the adapter body 1 is a three-section barrel structure, and the three-section barrel structure is a cylindrical barrel, a truncated cone tube, and a round tube from top to bottom, the top surface of the cylindrical barrel is open, the opening is sleeved with the barrel of the syringe, the bottom surface of the cylindrical barrel is connected to the small end of the truncated cone tube, and the large end of the truncated cone tube is connected to the round tube; the pressurizing body 2 includes a double round tube structure, the inner tube 201 and the outer tube 202 of the double round tube structure are screwed together, the outer ring of the inner tube 201 is provided with four pressure strain gauges 3 evenly distributed around the circumference, the inner tube 201 and A space is left between the outer tubes 202, and four pressure strain gauges 3 are located in the space. The four pressure strain gauges 3 are connected to form a bridge circuit, and the bridge circuit is connected to the PLC controller; an air bag 6 is provided on the bottom surface of the pressurized body 2, and the air bag 6 is connected to the air source through a solenoid valve, and the solenoid valve is connected to the PLC controller; the PLC controller is connected to a display, and a user operation interface is provided on the display; pressure adjustment parameters are preset in the PLC controller, and the pressure is adjusted within a certain range by comparing the detected pressure with the preset pressure; the user can set different pressurization parameters according to different blood collection requirements. The present invention adopts an adapter to respectively connect the barrel and the pressurizing body of the syringe. The pressurizing body adopts four pressure strain gauges to form a bridge circuit to collect the pressure of the groin, and sends the collected pressure value to the PLC controller. The PLC controller is used to monitor and adjust the pressure to ensure the accuracy of pressurization; the inflation and deflation of the airbag is controlled by the PLC controller to control the pressure applied to the groin area; automatic pressure regulation is achieved by the PLC controller to reduce human errors and facilitate blood collection; the bridge circuit can provide real-time feedback on the pressurization status to ensure that medical staff can adjust the operation in time; the user interface of the operation interface and the display is user-friendly, which simplifies the operation process of medical staff and reduces dependence on experience; the standardized pressurization process reduces the blood collection time and improves the overall work efficiency; the blood collection auxiliary pressurization device is designed according to ergonomics to improve the comfort of patients.

[0014] Embodiment 2: Based on Embodiment 1, refer to Figure 2 The inner circle of the cylinder structure of the opening is equal to the outer circle of the cylinder of the syringe, and a first through hole is arranged at the center of the bottom surface of the cylindrical cylinder, and the inner diameter of the first through hole is greater than the outer diameter of the needle plug. The present invention adopts the inner circle of the cylinder structure of the opening to be equal to the outer circle of the cylinder of the syringe, which can position the cylinder of the syringe, ensure the stability of the syringe at the blood collection site during the pressurization process, and prevent movement from affecting the blood collection effect; the first through hole at the center of the bottom surface of the cylindrical cylinder allows the needle plug to pass through.

[0015] Embodiment 3: Based on embodiment 1, the main body of the inner tube 201 is a first stepped sleeve, and the outer diameter of the small end of the first stepped sleeve is smaller than the inner diameter of the round tube. The present invention adopts an inner tube with a small end outer diameter smaller than the inner diameter of the round tube, which can sleeve the adapter and the pressurizing body together, ensuring the stability of the adapter during the pressurization process and preventing movement from affecting the blood collection effect.

[0016] Embodiment 4: Based on Embodiment 3, the outer ring of one end of the large end of the first stepped sleeve is provided with a first threaded section, the first threaded section is close to the step surface of the stepped sleeve, the outer tube 202 is the second stepped sleeve, the inner hole of the small end of the second stepped sleeve is the first screw hole, and the first screw hole is screwed with the first threaded section. The present invention uses the first screw hole at the small end of the outer tube to screw with the first threaded section at the large end of the inner tube, and combines the inner tube and the outer tube into a pressurized body.

[0017] Embodiment 5: Based on Embodiment 4, the outer ring of the other end of the large end of the first stepped sleeve is provided with a second threaded section, the second threaded section is connected to the annular tube 5, and an annular groove is formed between the inner wall of the connecting annular tube 5 and the outer ring of the inner tube 201. The present invention adopts the second threaded section of the large end of the inner tube to be screwed with the connecting annular tube to form an annular groove.

[0018] Embodiment 6: Based on Embodiment 5, the airbag 6 is located in the annular groove, and any cross section of the airbag 6 is a rectangular frame. The present invention uses the airbag located in the annular groove to position the airbag; any cross section of the airbag is a rectangular frame, and one end of the rectangular frame close to the bottom of the annular groove can be glued to limit the position of the airbag.

[0019] Embodiment 7, on the basis of embodiment 5, the outer ring of the large end of the second stepped shaft sleeve is provided with an aviation socket 4, the output end of the bridge circuit is connected to the aviation socket 4, the aviation socket 4 is provided with an aviation plug, and the aviation plug is connected to the PLC controller. The output end of the bridge circuit is connected to the aviation socket in the present invention, and the aviation socket is installed on the outer ring of the large end of the second stepped shaft sleeve, which can facilitate the connection of the aviation plug thereto, and the other end of the aviation plug is connected to the PLC controller through a wire.

[0020] Embodiment 8, on the basis of embodiment 7, the outer ring of the large end of the second stepped sleeve is provided with a boss, the side of the boss away from the center of the second stepped sleeve is a plane, the plane is a square, the center of the square is provided with a second through hole, the four corners of the square are provided with second screw holes, and the bottom surface of the aviation socket 4 is screwed with the second screw holes through screws. The present invention adopts a square boss provided on the outer ring of the large end of the second stepped sleeve, the bottom surface of the aviation socket is installed on the boss through screws, the second through hole allows the wire of the output end of the bridge circuit to pass through and connect with the aviation socket, the bottom surface of the aviation socket is screwed with the second screw holes through 4 screws respectively, and the aviation socket is installed and positioned.

[0021] Embodiment 9: Based on Embodiment 7, any cross section of the connecting ring tube 5 is a T-shaped structure, and a third screw hole is provided on one end flange of the T-shaped structure, and the third screw hole is screwed with the second threaded section; the other end flange of the T-shaped structure contacts the inner wall of the large end of the second stepped sleeve. The inner hole of the connecting ring tube of the present invention is the third screw hole, and the third screw hole is screwed with the second threaded section, and the connecting ring tube is installed on the outer ring of the inner tube.

[0022] Embodiment 10: Based on Embodiment 9, an annular groove is formed between the web of the T-shaped structure and the outer ring of the inner tube 201, and a third through hole 501 is provided on the outer ring of the annular groove. The third through hole 501 is used for the passage of the trachea on the airbag 6. The present invention adopts a connecting ring tube and the inner tube to form an annular groove, and the third through hole on the outer ring of the annular groove is used for the passage of the trachea on the airbag, so as to facilitate the connection between the airbag and the air source.

[0023] During specific implementation, the working process of the present invention is as follows:

[0024] 1. Before starting blood collection, medical staff enter the patient's information and required pressurization parameters through the user interface;

[0025] 2. The PLC controller sends instructions to the pressure regulating mechanism (i.e., solenoid valve) based on the input parameters, and controls the pressure applied to the groin area to the appropriate pressure by controlling the inflation and deflation of the airbag;

[0026] 3. The pressure strain gauge monitors the pressure applied to the groin area in real time and feeds back to the PLC controller;

[0027] 4. The PLC controller compares the feedback pressure data with the preset parameters and dynamically adjusts the pressure regulation mechanism to ensure the accuracy of pressurization;

[0028] 5. The blood collection auxiliary pressurization device stabilizes the patient's groin area during the entire process to ensure the consistency and accuracy of pressurization;

[0029] 6. The user interface displays the pressurization status in real time, allowing medical staff to adjust operations or intervene in time.

[0030] The present invention is applicable to the following fields: 1. Medical institutions: used for blood collection in hospitals, clinics and other medical institutions; 2. Field medical treatment: providing standardized operational support for blood collection in the field or in mobile medical units; 3. Medical education: as a teaching tool, helping medical students and medical staff to learn and master standardized blood collection techniques.

[0031] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An auxiliary pressurizing device for groin blood sampling, comprising an adapter body (1) that can be sleeved with a syringe barrel, characterized in that: A pressurizing body (2) is also provided between the adapter body (1) and the groin. The adapter body (1) is a three-section barrel structure, which is, from top to bottom, a cylindrical barrel, a truncated cone tube, and a round tube. The top surface of the cylindrical barrel is open, and the opening is sleeved with the barrel of the syringe. The bottom surface of the cylindrical barrel is connected to the small end of the truncated cone tube, and the large end of the truncated cone tube is connected to the round tube. The pressurizing body (2) comprises a double round tube structure. The inner tube (201) and the outer tube (202) of the double round tube structure are screwed together. The outer ring of the inner tube (201) is provided with four pressure strain gauges (3) evenly distributed around the circumference. The inner tube (201) is provided with a pressure gauge (3) evenly distributed around the circumference. A space is left between (201) and the outer tube (202), and four pressure strain gauges (3) are located in the space. The four pressure strain gauges (3) are connected to form a bridge circuit, and the bridge circuit is connected to a PLC controller; an air bag (6) is arranged on the bottom surface of the pressurized body (2), and the air bag (6) is connected to an air source via a solenoid valve, and the solenoid valve is connected to a PLC controller; the PLC controller is connected to a display, and a user operation interface is provided on the display; a pressure adjustment parameter is preset in the PLC controller, and the pressure is adjusted within a certain range by comparing the detected pressure with the preset pressure.

2. The inguinal blood sampling auxiliary pressurization device according to claim 1, characterized in that: The inner circle of the open cylinder structure is equal to the outer circle of the syringe cylinder, and a first through hole is arranged at the center of the bottom surface of the cylindrical cylinder, and the inner diameter of the first through hole is greater than the outer diameter of the needle bolt.

3. The inguinal blood sampling auxiliary pressurization device according to claim 1, characterized in that: The main body of the inner tube (201) is a first stepped sleeve, and the outer diameter of the small end of the first stepped sleeve is smaller than the inner diameter of the circular tube.

4. The inguinal blood sampling auxiliary pressurization device according to claim 3, characterized in that: The outer ring of one end of the large end of the first stepped sleeve is provided with a first threaded section, the first threaded section is close to the step surface of the stepped sleeve, the outer tube (202) is the second stepped sleeve, the inner hole of the small end of the second stepped sleeve is the first screw hole, and the first screw hole is screwed with the first threaded section.

5. The inguinal blood sampling auxiliary pressurization device according to claim 4, characterized in that: The outer ring of the other end of the large end of the first stepped shaft sleeve is provided with a second threaded section, the second threaded section is connected to the annular tube (5), and an annular groove is formed between the inner wall of the connecting annular tube (5) and the outer ring of the inner tube (201).

6. The inguinal blood sampling auxiliary pressurization device according to claim 5, characterized in that: The airbag (6) is located in the annular groove, and any cross section of the airbag (6) is a rectangular frame.

7. The inguinal blood sampling auxiliary pressurization device according to claim 5, characterized in that: The outer ring of the large end of the second stepped shaft sleeve is provided with an aviation socket (4), the output end of the bridge circuit is connected to the aviation socket (4), the aviation socket (4) is provided with an aviation plug, and the aviation plug is connected to the PLC controller.

8. The inguinal blood sampling auxiliary pressurization device according to claim 7, characterized in that: The outer ring of the large end of the second stepped shaft sleeve is provided with a boss, and the side of the boss away from the center of the second stepped shaft sleeve is a plane, the plane is a square, the center of the square is provided with a second through hole, and the four corners of the square are provided with second screw holes, and the bottom surface of the aviation socket (4) is screwed into the second screw holes by means of screws.

9. The inguinal blood sampling auxiliary pressurization device according to claim 7, characterized in that: Any cross section of the connecting ring tube (5) is a T-shaped structure, and a third screw hole is provided on a flange at one end of the T-shaped structure, and the third screw hole is screwed into the second threaded section; and the other flange at the T-shaped structure contacts the inner wall of the large end of the second stepped shaft sleeve.

10. The inguinal blood sampling auxiliary pressurization device according to claim 9, characterized in that: An annular groove is formed between the web of the T-shaped structure and the outer ring of the inner tube (201), and the outer ring of the annular groove is provided with a third through hole (501), and the third through hole (501) is used for the passage of the trachea on the airbag (6).

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