Intelligent detection device for post-thyroidectomy hemorrhage
By designing a handheld intelligent detection device for post-thyroidectomy bleeding, utilizing an infrared detection module and automatic control functions, the infection risk and cumbersome operation problems of post-thyroidectomy bleeding monitoring have been solved, achieving convenient and accurate bleeding detection and low-interference operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI PROVINCIAL HOSPITAL
- Filing Date
- 2023-03-17
- Publication Date
- 2026-08-04
AI Technical Summary
Current methods for monitoring postoperative bleeding after thyroid surgery are prone to increasing the risk of wound infection, are cumbersome to operate, and can easily disturb patients, especially at night when observation can affect the sleep of other patients.
A smart detection device for post-thyroidectomy bleeding was designed. It adopts an infrared detection module and a handheld structure. The device automatically controls the opening and closing of the cover, infrared detection and lighting by pressing a button, avoiding the need to remove the gauze to directly detect wound bleeding.
It enables accurate bleeding detection without removing the gauze, reducing the risk of infection, is easy to operate, minimizes disturbance to patients, saves electricity, and extends the lifespan of the lighting lamp.
Smart Images
Figure CN116807418B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, specifically to an intelligent detection device for post-thyroidectomy bleeding. Background Technology
[0002] Thyroidectomy is divided into total thyroidectomy and partial thyroidectomy. Generally, postoperative care after thyroidectomy mainly involves monitoring the patient's wound for bleeding to prevent postoperative complications. Currently, the primary method for monitoring postoperative bleeding relies on regular observation by medical staff. However, this method has several drawbacks: the gauze needs to be removed before observation, which increases the risk of infection; furthermore, the repeated removal and reapplying of gauze is cumbersome and disturbs the patient, especially at night, requiring the ward lights to be on and affecting other patients' sleep. Therefore, there is an urgent need for a device that can detect wound bleeding without removing the gauze. Summary of the Invention
[0003] The purpose of this invention is to provide an intelligent detection device for postoperative bleeding after thyroid surgery, which solves the shortcomings of existing methods for monitoring postoperative bleeding after thyroid surgery, such as increasing the risk of wound infection, cumbersome operation, and easy disturbance to patients.
[0004] The present invention achieves the above objectives through the following technical solutions: A smart detection device for post-thyroidectomy bleeding includes a housing with a handheld part. A detection groove is formed at the front end of the housing, and an infrared detection module for bleeding detection is installed inside the detection groove. A light-transmitting sheet is encapsulated at the opening of the detection groove, and two rotating shafts are rotatably mounted on opposite edges of the opening. A closing cover for blocking the light-transmitting sheet is mounted on each rotating shaft. A button groove is formed on the handheld part, and a button extending out of the button groove is movably mounted inside the button groove via a first spring. A cavity is formed inside the housing, and a toothed plate is movably mounted inside the cavity via a slide rail. The toothed plate is connected to the button via a linkage rod. Two gears are also provided on opposite sides of the toothed plate's movement path inside the cavity, and pull ropes are connected to each gear. The pull ropes are respectively connected to the two rotating shafts and wound around the shaft surfaces. A detection switch for controlling the opening and closing of the infrared detection module is provided at the end of the toothed plate's movement path inside the cavity. When the button is pressed, the button drives the toothed plate to move along the slide rail via the linkage rod. After the toothed plate contacts and meshes with the gear, it drives the gear to rotate. The gear pulls the rotating shaft to rotate via the pull rope, causing the two closed covers to gradually open. The toothed plate continues to move until it contacts the detection switch, triggering the infrared detection module to start working.
[0005] A further improvement is that the infrared detection module includes an infrared detection lamp group, an infrared thermal imaging module and a microcontroller connected in sequence, as well as a battery for power supply.
[0006] A further improvement is that the rear end of the housing is also equipped with a display screen that is connected to the signal output terminal of the microcontroller.
[0007] A further improvement is that the housing is equipped with a soft light.
[0008] A further improvement is that the cavity is equipped with a lighting switch for controlling the on / off state of the lighting lamp, the side of the toothed plate is provided with an angled protrusion, the cavity is equipped with a drive cylinder, the drive cylinder is equipped with a first piston disc and a second piston disc, the first piston disc is connected to a push block via a connecting rod extending from one end of the drive cylinder, and the drive cylinder is equipped with a fourth spring at this end for supporting the first piston disc, the push block is located on the moving path of the angled protrusion, the second piston disc is connected to a pressure block via a connecting rod extending from the other end of the drive cylinder, and the drive cylinder is provided with an exhaust micro-hole at this end, the pressure block is aligned with the position of the lighting switch, the drive cylinder is connected to a buffer cylinder between the first piston disc and the second piston disc, and a third piston disc is movably mounted in the buffer cylinder via a second spring; During the process of the toothed plate moving along the slide rail and before engaging with the gear, if the angled protrusion stops moving when pushing the push block, the push block drives the first piston disc to move via the connecting rod, causing the gas between the first and second piston discs to be forced into the buffer cylinder, and driving the third piston disc to move and compress the second spring. Under the restoring force of the second spring, the gas is forced back into the drive cylinder, and gradually discharged through the exhaust micro-hole, causing the second piston disc to move and drive the pressure block to contact the lighting switch via the connecting rod, triggering the lighting to turn on. If the angled protrusion does not stop moving when pushing the push block, the push block drives the first piston disc to move via the connecting rod, causing the gas between the first and second piston discs to be forced into the buffer cylinder, and driving the third piston disc to move and compress the second spring. After the angled protrusion quickly disengages from the push block, the gas is forced back into the drive cylinder under the restoring force of the second spring, and the first piston disc is reset under the restoring force of the fourth spring. However, because the exhaust micro-hole cannot discharge the gas in time, the movement of the second piston disc cannot drive the pressure block to contact the lighting switch.
[0009] A further improvement is that the outer side of the light-transmitting sheet is provided with a guide rail parallel to the light-transmitting sheet. The guide rail is provided with two cleaning plates that are in movable contact with the light-transmitting sheet, and a third spring that limits the movement of the cleaning plates. The inner side of the closing cover is provided with a connector, and a pull rod is rotatably connected to the connector. The pull rod is correspondingly connected to the cleaning plates. When the closing cover is in the closed state, the two cleaning plates are located in the middle position of the light-transmitting sheet. When the closing cover is rotated open, the pull rod pulls the cleaning plates along the guide rail to move the cleaning plates to the edge position of the light-transmitting sheet and wipes the light-transmitting sheet during the movement.
[0010] A further improvement is that the closing cover has an internal vacuum insulation structure.
[0011] The beneficial effects of this invention are as follows: (1) The device adopts a handheld structure and can realize intelligent detection of bleeding at the site of thyroid surgery wound through the principle of infrared detection. It is easy to operate, the detection results are accurate and reliable, and the risk of wound infection can be avoided, reducing the disturbance to the patient. (2) The device can perform the sequential process of turning on the light, opening the closed cover and starting the detection at night with just one control button, and can also directly open the closed cover and start the detection during the day. All operations can be completed with one hand, which is very convenient. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the structure inside the cavity; Figure 4 This is a schematic diagram of the drive cylinder and the buffer cylinder. Figure 5 This is a schematic diagram of the closed lid when it is closed; Figure 6 This is a schematic diagram of the structure when the lid is closed and open. In the diagram: 1. Handheld part; 2. Housing; 3. Detector slot; 4. Infrared detection module; 5. Light-transmitting sheet; 6. Rotating shaft; 7. Closing cover; 8. Button slot; 9. First spring; 10. Button; 11. Cavity; 12. Slide rail; 13. Gear plate; 14. Linkage rod; 15. Gear; 16. Pull rope; 17. Detection switch; 18. Display screen; 19. Lighting lamp; 20. Lighting switch; 21. Angled protrusion; 22. Drive cylinder; 23. First piston disc; 24. Second piston disc; 25. Push block; 26. Pressing block; 27. Exhaust micro-hole; 28. Buffer cylinder; 29. Second spring; 30. Third piston disc; 31. Guide rail; 32. Dust removal plate; 33. Third spring; 34. Connector; 35. Pull rod; 36. Fourth spring. Implementation
[0013] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0014] Combination Figures 1 to 6 As shown, a smart detection device for post-thyroidectomy bleeding includes a housing 2 with a handheld part 1. A detection groove 3 is provided at the front end of the housing 2. An infrared detection module 4 for bleeding detection is installed in the detection groove 3. The infrared detection module 4 includes an infrared detection lamp group, an infrared thermal imaging module and a microcontroller connected in sequence, as well as a battery for power supply. A light-transmitting sheet 5 is encapsulated at the opening of the detection slot 3, and two rotating shafts 6 are rotatably provided on opposite edges of the slot opening. A closing cover 7 for blocking the light-transmitting sheet 5 is installed on the rotating shafts 6. A button slot 8 is provided on the handheld part 1. A button 10 extending out of the button slot 8 is movably installed in the button slot 8 through a first spring 9. A cavity 11 is provided inside the housing 2. A toothed plate 13 is movably provided in the cavity 11 through a slide rail 12. The toothed plate 13 is connected to the button 10 through a linkage rod 14. Two gears 15 are also provided on opposite sides of the moving trajectory of the toothed plate 13 in the cavity 11. Each gear 15 is connected to a pull rope 16. The pull ropes 16 are respectively connected to the two rotating shafts 6 and wound around the shaft surface. A detection switch 17 for controlling the opening and closing of the infrared detection module 4 is provided at the end of the moving trajectory of the toothed plate 13 in the cavity 11. A display screen 18 connected to the signal output terminal of the microcontroller is also provided at the rear end of the housing 2.
[0015] This invention places the infrared detection module 4 inside the detection slot 3, and provides a light-transmitting sheet 5 at the slot opening to protect the infrared detection module 4. The addition of a closing cover 7 further enhances the protective effect. During bleeding detection, pressing the button 10 causes the toothed plate 13 to move along the slide rail 12 via the linkage rod 14. The toothed plate 13 engages with the gear 15, causing the gear 15 to rotate. The gear 15 then pulls the rotating shaft 6 via the pull rope 16, gradually opening the two closing covers 7. The toothed plate 13 continues to move until it contacts the detection switch 17, triggering the infrared detection module 4 to operate. At this point, the module is aligned with the patient's surgical site, allowing the infrared detection lamps to illuminate the surgical wound and collect infrared radiation from the human body. This is then converted into a digital signal by the infrared thermal imaging module, forming a pseudo-color thermal image. After data processing by the microcontroller, the image is sent to the display screen 18 for display. If the patient's wound is bleeding, the thermal image will show different shades of color, and the microcontroller will generate an alarm message.
[0016] Preferably, the housing 2 of the present invention is provided with a soft light lamp 19 for nighttime illumination, so that the ward lights do not need to be turned on during the examination, reducing the impact on other patients.
[0017] Preferably, in this invention, the cavity 11 is provided with a lighting switch 20 for controlling the opening and closing of the lighting lamp 19, the side of the toothed plate 13 is provided with an angled protrusion 21, the cavity 11 is provided with a drive cylinder 22, the drive cylinder 22 is provided with a first piston disc 23 and a second piston disc 24, the first piston disc 23 is connected to a push block 25 by a connecting rod extending from one end of the drive cylinder 22, and the drive cylinder 22 is provided with a fourth spring 36 for supporting the first piston disc 23 at this end, the push block 25 is located on the moving path of the angled protrusion 21, the second piston disc 24 is connected to a pressure block 26 by a connecting rod extending from the other end of the drive cylinder 22, and the drive cylinder 22 is provided with an exhaust microhole 27 at this end, the pressure block 26 is aligned with the position of the lighting switch 20, the drive cylinder 22 is connected to a buffer cylinder 28 between the first piston disc 23 and the second piston disc 24, and a third piston disc 30 is movably provided in the buffer cylinder 28 by a second spring 29; During the process of the toothed plate 13 moving along the slide rail 12 and engaging with the gear 15, the closed cover 7 is not open and the infrared detection module 4 is not activated. If detection is performed at night, the lighting 19 needs to be turned on to locate the patient and determine the wound location. At this time, when pressing the button 10, it is pressed in two stages (a ring groove, rubber ring, or other structure can be set in the button 10 to control the pressing stop through the change of pressing sensation). This makes the angled protrusion 21 push the push block 25 to stop moving. At this time, the push block 25 drives the first piston plate 23 to move towards the second piston plate 24 through the connecting rod, so that the gas between the first piston plate 23 and the second piston plate 24 is quickly pressed into the buffer cylinder 28, and drives the third piston plate 30 to move and compress the second spring 29. Then, under the restoring force of the second spring 29, the gas is pressed back into the drive cylinder 22, and gradually discharged through the exhaust micro-hole 27 (the hole diameter is very small, for example, less than 1 mm, so that the gas needs a period of time to be discharged). This causes the second piston plate 24 to move and drive the pressure block 2 through the connecting rod. When button 6 contacts the lighting switch 20, it triggers the lighting 19 to turn on. If it is daytime, there is no need to turn on the lighting 19. In this case, when pressing button 10, press it all the way down at once, so that the angled protrusion 21 pushes the push block 25 without stopping. The push block 25 drives the first piston disc 23 to move through the connecting rod, so that the gas between the first piston disc 23 and the second piston disc 24 is forced into the buffer cylinder 28, and drives the third piston disc 30 to move and compress the second spring 29. After the angled protrusion 21 quickly disengages from the push block 25, the gas is forced back into the drive cylinder 22 under the restoring force of the second spring 29, and the first piston disc 23 is reset under the restoring force of the fourth spring 36. The second piston disc 24 is also reset under the action of air pressure (with a short movement). Since the exhaust micro-hole 27 cannot discharge the gas in time, the movement of the second piston disc 24 cannot drive the pressure block 26 to contact the lighting switch 20. Therefore, the lighting 19 will not be turned on, which can save electricity and avoid repeated starting and extending the service life of the lighting 19.
[0018] Preferably, in this invention, a guide rail 31 parallel to the light-transmitting sheet 5 is provided on the outer side of the light-transmitting sheet 5. The guide rail 31 can be positioned at the edge to avoid affecting the detection. The guide rail 31 is provided with two cleaning plates 32 that are in movable contact with the light-transmitting sheet 5, and a third spring 33 that limits the movement of the cleaning plates 32. A connector 34 is movably provided on the inner side of the closing cover 7. A pull rod 35 is rotatably connected to the connector 34, and the pull rod 35 is correspondingly connected to the cleaning plates 32. When the closing cover 7 is in the closed state, the two cleaning plates 32 are located in the middle position of the light-transmitting sheet 5. When the closing cover 7 is rotated open, the pull rod 35 pulls the cleaning plates 32 to move along the guide rail 31, so that the cleaning plates 32 are located at the edge position of the light-transmitting sheet 5, and wipe the light-transmitting sheet 5 during the movement. This can prevent dust on the outer surface of the light-transmitting sheet 5 from interfering with the detection process.
[0019] Preferably, in this invention, the closed cover 7 is an internal vacuum heat insulation structure, which can reduce the influence of the external ambient temperature on the light-transmitting sheet 5 and the infrared detection module 4, avoid large local temperature differences in the light-transmitting sheet 5 and the infrared detection module 4, and improve the detection accuracy of the infrared detection module 4.
[0020] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.
Claims
1. A smart detection device for post-thyroidectomy bleeding, characterized in that, The device includes a housing (2) with a handheld part (1), a detection groove (3) is provided at the front end of the housing (2), an infrared detection module (4) for bleeding detection is installed in the detection groove (3), a light-transmitting sheet (5) is encapsulated at the opening of the detection groove (3), and two rotating shafts (6) are rotatably provided on opposite edges of the opening. A closing cover (7) for blocking the light-transmitting sheet (5) is installed on the rotating shafts (6). A button groove (8) is provided on the handheld part (1), and a button (10) extending out of the button groove (8) is movably installed in the button groove (8) by a first spring (9). The housing (2) The cavity (11) is provided inside. A toothed plate (13) is movably provided in the cavity (11) via a slide rail (12). The toothed plate (13) is connected to the button (10) via a linkage rod (14). Two gears (15) are also provided on the opposite side of the toothed plate (13)'s movement trajectory inside the cavity (11). Each gear (15) is connected to a pull rope (16). The pull rope (16) is connected to two rotating shafts (6) and wound around the shaft surface. A detection switch (17) for controlling the opening and closing of the infrared detection module (4) is provided at the end of the toothed plate (13)'s movement trajectory inside the cavity (11). When the button (10) is pressed, the button (10) drives the toothed plate (13) to move along the slide rail (12) through the linkage rod (14). After the toothed plate (13) contacts and meshes with the gear (15), it drives the gear (15) to rotate. The gear (15) pulls the rotating shaft (6) to rotate through the pull rope (16), so that the two closed covers (7) gradually open. The toothed plate (13) continues to move until it contacts the detection switch (17), triggering the infrared detection module (4) to work. The housing (2) is equipped with a soft light lamp (19); The cavity (11) is provided with a lighting switch (20) for controlling the opening and closing of the lighting lamp (19). The side of the toothed plate (13) is provided with an angled protrusion (21). The cavity (11) is provided with a drive cylinder (22). The drive cylinder (22) is provided with a first piston disc (23) and a second piston disc (24). The first piston disc (23) is connected to a push block (25) through a connecting rod extending from one end of the drive cylinder (22). The drive cylinder (22) is provided with a fourth spring (36) at this end for supporting the first piston disc (23). The push block (25) is located on the moving path of the angled protrusion (21). The second piston disc (24) is connected to the pressure block (26) through a connecting rod extending from the other end of the drive cylinder (22). The drive cylinder (22) has an exhaust micro-hole (27) at this end. The pressure block (26) is aligned with the position of the lighting switch (20). The drive cylinder (22) is connected to a buffer cylinder (28) between the first piston disc (23) and the second piston disc (24). The buffer cylinder (28) is equipped with a third piston disc (30) through a second spring (29). During the process before the toothed plate (13) moves along the slide rail (12) and engages with the gear (15), if the angled protrusion (21) stops moving when pushing the push block (25), the push block (25) drives the first piston disc (23) to move through the connecting rod, so that the gas between the first piston disc (23) and the second piston disc (24) is pressed into the buffer cylinder (28), and drives the third piston disc (30) to move and compress the second spring (29). Under the restoring force of the second spring (29), the gas is pressed back into the drive cylinder (22), and the gas is gradually discharged through the exhaust micro-hole (27), so that the second piston disc (24) moves and drives the pressure block (26) to contact the lighting switch (20) through the connecting rod, triggering the lighting lamp (19) to turn on; if the When the angled protrusion (21) pushes the push block (25), it does not stop moving. The push block (25) drives the first piston disc (23) to move through the connecting rod, so that the gas between the first piston disc (23) and the second piston disc (24) is pressed into the buffer cylinder (28), and drives the third piston disc (30) to move and compress the second spring (29). After the angled protrusion (21) quickly disengages from the push block (25), the gas is pressed back into the drive cylinder (22) under the restoring force of the second spring (29), and the first piston disc (23) is reset under the restoring force of the fourth spring (36). However, since the exhaust micro-hole (27) cannot discharge the gas in time, the movement of the second piston disc (24) cannot drive the pressure block (26) to contact the lighting switch (20). The outer side of the light-transmitting sheet (5) is provided with a guide rail (31) parallel to the light-transmitting sheet (5). The guide rail (31) is provided with two cleaning plates (32) that are in contact with the light-transmitting sheet (5) and a third spring (33) that limits the movement of the cleaning plates (32). The inner side of the closing cover (7) is provided with a connector (34). The connector (34) is rotatably connected with a pull rod (35). The pull rod (35) is connected to the cleaning plates (32). When the closing cover (7) is closed, the two cleaning plates (32) are located in the middle position of the light-transmitting sheet (5). When the closing cover (7) is rotated open, the pull rod (35) pulls the cleaning plates (32) to move along the guide rail (31), so that the cleaning plates (32) are located at the edge of the light-transmitting sheet (5) and wipe the light-transmitting sheet (5) during the movement.
2. The intelligent detection device for post-thyroidectomy hemorrhage according to claim 1, characterized in that, The infrared detection module (4) includes an infrared detection lamp group, an infrared thermal imaging module and a microcontroller connected in sequence, as well as a battery for power supply.
3. The intelligent detection device for post-thyroidectomy bleeding according to claim 2, characterized in that, The rear end of the housing (2) is also provided with a display screen (18) connected to the signal output terminal of the microcontroller.
4. The intelligent detection device for post-thyroidectomy hemorrhage according to claim 1, characterized in that, The closed cover (7) is an internal vacuum insulation structure.