CN118177933A - An intelligent image analyzer and puncture method for PICC catheterization - Google Patents

Abstract

The invention discloses a PICC (peripherally inserted central catheter) intelligent image analyzer and a puncture method, which belong to the technical field of surgical puncture equipment and comprise a host, a micropump, an optical detection module and a color display, wherein the head end of the host is provided with the ultrasonic detection module, the tail end of the host is connected with a plurality of electrocardio electrodes, the top of the host is provided with the color display which is used for displaying near infrared light on a human body to identify the positions of surrounding tissues and veins and is displayed on the color display. In the puncturing process, the ultrasonic detection module detects the trend of the vein of the human body to the heart, and the laser vertical to the host machine is utilized to guide the needle holder to insert the needle. On the other hand, the micro-pump is arranged in the middle of the main machine, and the main machine drives the micro-pump to be electrified and operated, so that the suction gel is supplied to the position of the ultrasonic detection module, and a gel layer is formed between the ultrasonic detection module and the skin of a human body, so that ultrasonic waves are conducted onto the ultrasonic detection module.

Description

An intelligent image analyzer and puncture method for PICC catheterization

Technical Field

The present invention relates to the technical field of surgical puncture equipment, and in particular to an intelligent image analyzer and puncture method for PICC catheter placement.

Background technique

Traditional PICC catheterization is commonly known as "blind puncture", which mainly measures the length of the catheter on the body surface before puncture, and determines the position of the catheter tip through chest X-ray after puncture. At present, most domestic hospitals have upgraded the traditional technology and switched to ultrasound-guided PICC catheterization for puncture.

Although the use of new technologies has greatly improved the success rate of "blind puncture" and correspondingly alleviated the patient's pain, due to individual differences among patients, vascular malformations, long-term infusion treatment and other factors, patients may still suffer from serious complications such as nerve damage, bleeding, mechanical phlebitis, etc. In addition, ultrasound-guided PICC catheterization also requires the use of a variety of equipment such as B-ultrasound machines, electrocardiographs, infrared imaging devices, etc., and a lot of preparation work needs to be done before the operation, and the patient is often not punctured in time.

Therefore, in order to improve the success rate of PICC catheterization and perform puncture on patients promptly and quickly, it is of great significance to develop a small, portable and easy-to-operate device for patients.

Summary of the invention

To this end, the present invention provides an intelligent image analyzer and puncture method for PICC catheterization to solve the problems of long operation preparation time and low success rate due to individual differences of patients in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

According to the first aspect of the present invention.

The present invention discloses an intelligent image analyzer for PICC placement, comprising:

The host has an ultrasonic detection module at the front end and a wire circuit with multiple ECG electrodes in parallel at the rear end. The ultrasonic detection module uses ultrasonic waves to detect the direction of the human vein leading to the heart, and guides the needle holder to insert the needle through a laser installed on the host and perpendicular to the host;

A micro pump, disposed in the middle of the main unit and adapted to pump the gel to the head end of the main unit;

A color display, the bottom of which is mounted on the top of the host and is signal-connected to the optical detection module, and the optical detection module is connected to the positioning module;

The optical detection module identifies the location of surrounding tissues and veins by irradiating near-infrared light on the human body, and presents them on the color display.

In one possible embodiment, the optical detection module includes an infrared lens, a normal lens, a photosensitive chip and a split mounting plate, a pair of photosensitive chips are mounted on the split mounting plate, an infrared lens and a normal lens are respectively provided on the pair of photosensitive chips, the infrared lens and the normal lens simultaneously shoot the human body, and the infrared lens recognizes infrared rays reflected by the skin, the normal lens recognizes visible light, and the pair of photosensitive chips convert infrared rays and visible rays into photoelectric light, and superimpose them and display them on a color display.

In a possible implementation, the micro pump includes:

A driving gear has a plurality of permanent magnets arranged circumferentially on its inner side and is sleeved on the winding shaft, and the winding shaft is fixedly arranged in the main machine;

The passive gear is meshed and transmission-connected with the active gear on the outer side.

In a possible implementation, the host includes:

The casing has a micro pump installed in the middle, and the micro pump is connected to the driving board circuit;

The rubber nozzle is fixedly mounted at the front end of the housing, the driving board and the battery are arranged in parallel at the rear end of the housing, and the optical detection module is connected to the color display through the driving board;

A communication module is installed in the casing, and communication with a mobile phone or a computer terminal is achieved through WiFi wireless communication.

In a possible implementation, the housing includes a camera hole, an infrared dot matrix, a back panel and a laser hole. A pair of camera holes are arranged side by side on the outer side of the back panel, a laser hole is arranged below the camera holes, and an infrared dot matrix is arranged on the outer edge of the back panel.

In a possible implementation manner, a gel flow channel is provided inside the back plate, and the gel flow channel includes:

An upper flow channel is located at the symmetry line of the back plate, and the driving board and the battery are arranged on both sides of the upper flow channel;

The lower flow channel is Y-shaped, surrounds the ultrasonic detection module in the middle, and is suitable for injecting gel into the rubber nozzle at the left and right ends of the ultrasonic detection module.

The pump tank has a tail end connected to the upper flow channel and a head end connected to the lower flow channel, and the micro pump is installed inside.

In a possible implementation, the positioning module includes a geomagnetic sensor, a gravity sensor and a Hall element;

The gravity sensor is used to correct the host to be perpendicular to the gravity field, the host is corrected to be perpendicular to the vein through the ultrasonic detection module, and the geomagnetic sensor determines the insertion direction of the puncture needle by measuring the deflection angle of the host.

In a possible implementation, the ultrasonic detection module includes:

A conductive block, which is a solid structure and is built into the head end of the housing;

The transmitter and the receiver are embedded in the conductive block and connected to the driving board.

The present invention has the following advantages:

The analyzer disclosed in the technical solution has the functions of ultrasonic detection (B-ultrasound) and infrared imaging. It can accurately select suitable veins for catheterization during PICC catheterization, and can accurately present the length, direction and shape of the vein on a color display. It also uses a positioning module to calculate the extension angle of the vein, and uses a laser to emit laser to indicate the direction of needle insertion during puncture, thereby facilitating puncture. The equipment is integrated and miniaturized, making it convenient for medical staff to carry, greatly reducing the time for preparing for puncture and improving the efficiency of treating patients.

According to the second aspect of the present invention.

The present invention discloses a puncture method, which uses the above-mentioned PICC catheterization intelligent image analyzer, comprising the following steps:

Step 1: Turn on the ultrasonic detection module to detect the position of the vein. At the same time, turn on the laser to emit the laser, and use the gravity sensor to level the housing so that the housing is parallel to the earth's gravity.

Step 2: Detect the position of human veins through the ultrasonic detection module, obtain the vein fault structure, select the catheter vein, keep the housing perpendicular to the selected vein, detect and record the bending angles of the catheter vein at various locations through the geomagnetic sensor, and calculate the vein length;

Step 3: Select the needle insertion angle according to the direction of the laser light path, and check the location of the vein with the help of the ultrasonic detection module and the optical detection module. After inserting the catheter, extend it into the patient's heart along the catheter vein.

Furthermore, in step three, the catheter for puncture contains a magnetic metal guide wire, and the Hall element is suitable for detecting the metal guide wire and presenting it on the color display.

The present invention has the following advantages:

When in use, the present invention combines a gravity sensor and a geomagnetic sensor to mark the direction of the vein and uses a laser to emit a laser to guide the needle holder to insert the needle, which can significantly improve the accuracy of puncture and reduce the difficulty of operation. At the same time, the Hall element is used to detect the magnetic metal guide wire, and then the direction of the metal guide wire and the catheter is displayed on a color display to further determine whether the puncture is successful. Compared with the existing technology of determining the position of the catheter tip through a chest X-ray, this invention has better convenience and safety.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the implementation of the present invention or the technical solution in the prior art, the following briefly introduces the drawings required for the implementation or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

FIG1 is a stereoscopic diagram of an intelligent image analyzer for PICC catheter placement provided in Example 1 of the present invention;

FIG2 is a perspective view of an intelligent image analyzer for PICC catheter placement provided in Example 1 of the present invention;

FIG3 is a side view of the intelligent imaging analyzer for PICC catheter placement provided in Example 1 of the present invention;

Fig. 4 is a cross-sectional view of Fig. 3 at A-A provided in Embodiment 1 of the present invention;

Fig. 5 is a cross-sectional view of Fig. 4 at B-B provided in Embodiment 1 of the present invention;

FIG6 is a three-dimensional diagram of a micro pump provided in Example 1 of the present invention;

FIG7 is a three-dimensional diagram of a host provided by Embodiment 1 of the present invention;

FIG8 is a schematic diagram of ultrasonic detection provided by Embodiment 2 of the present invention;

FIG9 is a schematic diagram of infrared detection provided by Embodiment 2 of the present invention;

In the figure: 1 host; 11 housing; 111 camera hole; 112 infrared dot matrix; 113 back plate; 114 laser hole; 12 rubber nozzle; 13 drive board; 14 battery; 2 ultrasonic detection module; 21 conduction block; 22 transmitter; 23 receiver; 3 micro pump; 31 driving gear; 32 winding shaft; 33 passive gear; 4 optical detection module; 41 infrared lens; 42 ordinary lens; 43 photosensitive chip; 44 split mounting plate; 5 color display; 6 laser; 7 wire circuit; 8 positioning module; 81 geomagnetic sensor; 82 gravity sensor; 83 Hall element; 9 gel flow channel; 91 upper flow channel; 92 lower flow channel; 93 pump tank.

Detailed ways

The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, but 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.

Please refer to Figures 1 to 7. The technical solution of the present invention discloses an intelligent image analyzer for PICC catheter placement, including a host 1, a micro pump 3, an optical detection module 4 and a color display 5. The head end of the host 1 is provided with an ultrasonic detection module 2, which releases and receives ultrasonic waves outward, and analyzes the cross-sectional structure of the detected human body according to the different ultrasonic frequencies reflected by human veins and other tissues, so as to find the catheter vein. The tail end of the host 1 is inserted with a wire circuit 7 with multiple ECG electrodes in parallel, and the ECG electrodes are attached to the human chest to sense the heart frequency index to avoid the heart being affected during the catheterization process. During the puncture process, the ultrasonic detection module 2 uses ultrasonic waves to detect the direction of the human vein leading to the heart, and guides the needle holder to insert the needle through a laser 6 installed on the host 1 and perpendicular to the host. On the other hand, a micro pump 3 is provided in the middle of the host 1, and the host 1 drives the micro pump 3 to operate, and sucks the gel to the head end of the host 1, that is, the position of the ultrasonic detection module 2, so as to form a gel layer between the ultrasonic detection module 2 and the human skin, so that the ultrasonic wave is transmitted to the ultrasonic detection module 2.

As shown in FIG1 , a color display 5 is installed on the top of the host 1 , and the color display 5 is connected to the optical detection module 4 . The optical detection module 4 identifies the positions of surrounding tissues and veins by irradiating near-infrared light on the human body, and presents them on the color display 5 .

In this embodiment, as shown in FIG6 , the optical detection module 4 includes an infrared lens 41, an ordinary lens 42, a photosensitive chip 43 and a split mounting plate 44. A pair of photosensitive chips 43 are mounted on the split mounting plate 44, and the pair of photosensitive chips 43 are respectively provided with an infrared lens 41 and an ordinary lens 42. The infrared lens 41 is coated with a coating for filtering near-infrared light. The photosensitive chip 43 can identify visible light and infrared light, and perform photoelectric conversion on the light, thereby transmitting the electrical signal to the color display 5 to display the image. On this basis, the images presented by the visible light and the infrared light are superimposed, and the position of the veins is accurately displayed while improving the clarity.

In this embodiment, as shown in FIG4 , the positioning module 8 includes a geomagnetic sensor 81, a gravity sensor 82 and a Hall element 83. The geomagnetic sensor 81 is used to sense the earth's magnetic field and identify the deflection angle between the host 1 and the earth's magnetic field. The gravity sensor 82 is used to identify the vector angle between the host 1 and the earth's gravity. On this basis, the gravity sensor 82 can correct the host 1 to be perpendicular to the gravity field. Since the ultrasonic detection module 2 detects the human tissue structure in a section perpendicular to the vein, the host 1 can correct the ultrasonic detection module 2 to be perpendicular to the vein. The geomagnetic sensor 81 determines the insertion direction of the puncture needle by measuring the deflection angle of the host 1. Furthermore, in order to display the direction of the vein, while the geomagnetic sensor 81 measures the angle, turning on the laser 6 can intuitively display the direction of the vein, which is convenient for medical staff to insert the needle.

In some embodiments, as shown in Figures 4 and 6, the micro pump 3 includes a driving gear 31 and a passive gear 33. A plurality of permanent magnets are arranged circumferentially on the inner side of the driving gear 31 and are sleeved on a winding shaft 32. A plurality of windings corresponding to the permanent magnets are arranged on the winding shaft 32, and a rotating magnetic field is formed by energizing the windings to drive the driving gear 31 to rotate and mesh with the passive gear 33 for transmission. The winding shaft 32 is fixedly arranged in the main unit 1. When the driving gear 31 and the passive gear 33 rotate, the volume between the gear teeth changes, thereby achieving the effect of sucking gel to supply the ultrasonic detection module 2.

In some embodiments, as shown in FIG7 , the host 1 includes a housing 11, a rubber nozzle 12 and a drive board 13, wherein the drive board 13 is used to install peripheral circuits and controllers and is connected to a battery 14 to supply power to the outside. For example, the micro pump 3 installed in the middle of the housing 11 transmits current to the winding shaft 32 through the drive board 13 to form a rotating magnetic field. The rubber nozzle 12 is also fixedly installed at the head end of the housing 11, and the gel is transported to the rubber nozzle 12 through the micro pump 3. Thus, the ultrasonic detection module 2 releases ultrasonic waves to the human body through the rubber nozzle 12 through the gel. The optical detection module 4 is also connected to the color display 5 through the drive board 13, and the visible light image and the infrared image are superimposed after image processing. Furthermore, the drive board 13 in the housing 11 is equipped with a communication module, and the communication module communicates with a mobile phone or a computer terminal through WiFi wireless communication to achieve data sharing.

In this embodiment, as shown in FIG2 , the housing 11 includes a camera hole 111, an infrared dot matrix 112, a back plate 113 and a laser hole 114. A pair of camera holes 111 are arranged side by side on the outside of the back plate 113, corresponding to the infrared lens 41 and the ordinary lens 42 respectively. A laser hole 114 is arranged below the camera hole 111, and the laser hole 114 is connected to the laser 6. An infrared dot matrix 112 is arranged on the outer edge of the back plate 113, and the infrared dot matrix 112 releases near-infrared light to illuminate human skin tissue to identify the location of the veins.

In this embodiment, as shown in Figures 4 and 5, a gel flow channel 9 is provided inside the back plate 113, and the gel flow channel 9 includes an upper flow channel 91, a lower flow channel 92 and a pump groove 93, and a micro pump 3 is installed in the pump groove 93, and is connected to the lower flow channel 92 of the upper flow channel 91 at the same time, wherein the upper flow channel 91 is located at the symmetry line of the back plate 113, and a driving board 13 and a battery 14 are provided on both sides of the upper flow channel 91; the lower flow channel 92 is Y-shaped, and the middle part of the lower flow channel 92 surrounds the ultrasonic detection module 2, and is suitable for injecting gel into the rubber nozzle 12 at the left and right ends of the ultrasonic detection module 2. In this embodiment, the gel can not only improve the detection accuracy of the ultrasonic detection module 2, but also, on this basis, the gel is mainly hydrogel, and when the hydrogel passes through the upper flow channel 91 and the lower flow channel 92, it can also effectively take away the heat generated by the driving board 13, the battery 14 and the micro pump 3, thereby avoiding damage to the equipment due to excessive temperature.

In a specific embodiment disclosed in the present invention, as shown in FIG4 , the ultrasonic detection module 2 includes a conductive block 21, a transmitter 22 and a receiver 23. The conductive block 21 is a solid structure to facilitate sound wave conduction. The transmitter 22 and the receiver 23 are actually piezoelectric ceramics. Both are buried in the conductive block 21 and connected to the driving board 13 for detecting the frequency and time interval of ultrasonic waves.

Based on the same inventive concept, the present invention discloses a puncture method, please refer to FIG. 8-FIG. 9 and apply the above PICC catheterization intelligent image analyzer, including the following steps:

Step 1: Turn on the ultrasonic detection module 2 to detect the position of the vein. At the same time, turn on the laser 6 to emit laser light, and use the gravity sensor 82 to level the housing 11 so that the housing 11 is parallel to the earth's gravity.

Step 2: Detect the position of human veins through the ultrasonic detection module 2, obtain the vein fault structure, select the catheter vein, keep the housing 11 perpendicular to the selected vein, detect and record the bending angles of the catheter vein at various locations through the geomagnetic sensor 81, and calculate the vein length;

Step 3: Select the needle insertion angle according to the direction of the laser light path, and check the location of the vein in combination with the ultrasonic detection module 2 and the optical detection module 4. After inserting the catheter, extend it into the patient's heart along the catheter vein.

Specifically, as shown in FIG. 9 , in step three, the catheter for puncture contains a metal guide wire with a magnetic marker, and the Hall element 83 is suitable for detecting the metal guide wire and presenting it on the color display 5 .

Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims (10)

1. A PICC catheterization intelligent image analyzer, characterized in that it includes: A main unit (1) is provided with an ultrasonic detection module (2) at the front end and a conductor circuit (7) connected in parallel with a plurality of electrocardiogram electrodes at the rear end. The ultrasonic detection module (2) uses ultrasonic waves to detect the direction of the human vein leading to the heart and guides the needle holder to insert the needle through a laser (6) installed on the main unit (1) and perpendicular to the main unit. A micro pump (3) is arranged in the middle of the main unit (1) and is suitable for pumping gel to supply it to the head end of the main unit (1); A color display (5), the bottom of which is mounted on the top of the host (1) and is signal-connected to the optical detection module (4), and the optical detection module (4) is connected to the positioning module (8); The optical detection module (4) identifies the positions of surrounding tissues and veins by irradiating near-infrared light on the human body, and presents them on the color display (5). 2. The PICC catheterization intelligent image analyzer according to claim 1 is characterized in that the optical detection module (4) comprises an infrared lens (41), an ordinary lens (42), a photosensitive chip (43) and a split mounting plate (44), a pair of photosensitive chips (43) are installed on the split mounting plate (44), and the pair of photosensitive chips (43) are respectively provided with an infrared lens (41) and an ordinary lens (42). 3. The PICC catheterization intelligent image analyzer according to claim 1, characterized in that the micro pump (3) comprises: The driving gear (31) has a plurality of permanent magnets arranged in the inner circumferential direction and is sleeved on a winding shaft (32). The winding shaft (32) is fixedly arranged in the main machine (1). The passive gear (33) is meshed and transmission-connected with the active gear (31) on its outer side. 4. The PICC catheterization intelligent image analyzer according to claim 3, characterized in that the host (1) comprises: A housing (11) is provided with a micro pump (3) in the middle, and the micro pump (3) is connected to a driving board (13) by circuit. The rubber nozzle (12) is fixedly mounted at the front end of the housing (11); the driving board (13) and the battery (14) are arranged in parallel at the rear end of the housing (11); and the optical detection module (4) is connected to the color display (5) via the driving board (13); A communication module is installed in the housing (11), and communicates with a mobile phone or a computer terminal via WiFi wireless communication. 5. The PICC catheterization intelligent image analyzer as described in claim 4 is characterized in that the housing (11) includes a camera hole (111), an infrared dot matrix (112), a back plate (113) and a laser hole (114), a pair of camera holes (111) are arranged in parallel on the outside of the back plate (113), a laser hole (114) is arranged below the camera hole (111), and an infrared dot matrix (112) is arranged on the outer edge of the back plate (113). 6. The PICC catheterization intelligent image analyzer according to claim 5, characterized in that a gel flow channel (9) is provided inside the back plate (113), and the gel flow channel (9) comprises: An upper flow channel (91) is located at a symmetry line of the back plate (113), and the driving plate (13) and the battery (14) are arranged on both sides of the upper flow channel (91); The lower flow channel (92) is Y-shaped, surrounds the ultrasonic detection module (2) in the middle, and is suitable for injecting gel into the rubber nozzle (12) at the left and right ends of the ultrasonic detection module (2); The pump groove (93) has a tail end connected to the upper flow channel (91) and a head end connected to the lower flow channel (92), and has the micro pump (3) installed inside. 7. The PICC catheterization intelligent image analyzer according to claim 6, characterized in that the positioning module (8) comprises a geomagnetic sensor (81), a gravity sensor (82) and a Hall element (83); The gravity sensor (82) is used to correct the host (1) to be perpendicular to the gravity field, the host (1) is corrected to be perpendicular to the vein through the ultrasonic detection module (2), and the geomagnetic sensor (81) determines the insertion direction of the puncture needle by measuring the deflection angle of the host (1). 8. The intelligent image analyzer for PICC catheter placement according to claim 7, characterized in that the ultrasonic detection module (2) comprises a conduction block (21), a transmitter (22) and a receiver (23); The conductive block (21) is a solid structure and is built into the head end of the housing (11); the transmitter (22) and the receiver (23) are embedded in the conductive block (21) and are connected to the driving board (13). 9. A puncture method, using the PICC catheterization intelligent image analyzer as claimed in claim 8, characterized in that it comprises the following steps: Step 1: Turn on the ultrasonic detection module (2) to detect the position of the vein, and at the same time, turn on the laser (6) to emit laser, and use the gravity sensor (82) to level the housing (11) so that the housing (11) is parallel to the earth's gravity; Step 2: Detect the position of human veins through the ultrasonic detection module (2) and obtain the vein fault structure, select the catheter vein, keep the housing (11) perpendicular to the selected vein, detect and record the bending angles of the catheter vein at various locations through the geomagnetic sensor (81), and calculate the vein length; Step 3: Select the needle insertion angle according to the direction of the laser light path, and check the location of the vein in combination with the ultrasonic detection module (2) and the optical detection module (4). After inserting the catheter, extend it along the catheter vein into the patient's heart. 10. The puncture method as claimed in claim 9, characterized in that, in step three, the catheter for puncture contains a magnetic metal guide wire, and the Hall element (83) is suitable for detecting the metal guide wire and displaying it on the color display (5).