Handheld portable free flap blood supply detector

Abstract

The utility model discloses a handheld portable free flap blood supply detector, and relates to the technical field of medical equipment. The detector main body is used for detecting the assembling and fixing work of the whole part; the system further comprises; the detection mechanism is mounted in the detector main body and is used for detecting flap blood supply; one end of the bottom of the handle is welded with the outer wall of the detector main body; the telescopic rod is mounted in the detector main body; when the detector is used for blood supply detection, the open end of the bottom of the detector body is attached to the surface of a free flap, the button can drive the buckle to move downwards while being pressed, then one end of the bottom of the buckle can be clamped with the clamping groove in the outer wall of the detector body, and then the needle body can puncture the flap to observe the blood supply condition; after blood supply observation, the button is loosened, and the buckle and the clamping groove are clamped, so that the needle body cannot automatically contract towards the interior of the detector, and the interior of the detector main body is prevented from being polluted by blood stains on the surface of the needle body.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a handheld portable free flap blood supply detector. Background Technology

[0002] After flap surgery, medical staff need to closely monitor the survival of the flap, mainly by checking the blood supply and temperature of the transplanted flap. A search revealed a Chinese patent with authorization number CN118490189A that discloses a postoperative flap blood supply monitoring device. This device observes the blood supply status through the compression part and can observe whether there is arterial crisis or venous congestion through the insertion part. By setting a pressure sensor on the compression part, the temperature of the flap can be monitored. When performing free flap blood supply testing, after each test, the needle of the device will retract into the detector under the action of a spring. This can cause blood stains on one end of the needle to contaminate the detector, thus posing a safety hazard of cross-contamination. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a handheld portable free flap blood supply detector, which solves the problem mentioned in the background art where the needle of the existing device retracts into the detector under the action of the spring, causing blood stains on one end of the needle to contaminate the detector and thus posing a safety hazard of cross-contamination.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a handheld portable free flap blood supply detector, comprising;

[0005] The main body of the testing instrument is used to inspect the assembly and fixing of the overall parts;

[0006] Also includes;

[0007] The testing unit, installed inside the main body of the testing instrument, is used to test the blood supply to the skin flap;

[0008] The handle, with one bottom end of which is welded to the outer wall of the main body of the detector;

[0009] A telescopic rod is installed inside the main body of the detector, and the outer wall of the telescopic rod slides in contact with the inner wall of the main body of the detector.

[0010] A button, welded to one end of the telescopic rod, is used to press the telescopic rod to extend or retract.

[0011] Preferably, the outer wall of the top end of the detector body has a threaded structure, and the top end of the detector body is threadedly connected to the adjustment cap. By rotating the knob, the knob can move up and down through the thread at the top end of the detector body, thereby adjusting the travel of the button press and thus adjusting the depth of the needle insertion into the skin flap.

[0012] Preferably, eccentric wheels are distributed on both sides of the telescopic rod. The eccentric wheels are rotatably connected to both sides of the telescopic rod, and a wrench is welded to one side of the eccentric wheel. By rotating the wrench, the eccentric wheel is driven to rotate, thereby enabling the needle body to be quickly clamped and fixed.

[0013] Preferably, there is a gap between the bottom of the telescopic rod and one end of the bottom of the detector body, and the bottom of the detector body is provided with a slot, and the length between the bottom of the telescopic rod and the bottom of the detector body is equal to the maximum stroke of the telescopic rod.

[0014] Preferably, the testing organization includes:

[0015] The first limiting ring is installed at one end of the top of the telescopic rod, and the inner wall of the first limiting ring is welded to the inner wall of the telescopic rod.

[0016] A spring, which is fitted onto the outside of the telescopic rod, is used to return the telescopic rod to its upward position, and the top end of the spring contacts the bottom of the first limiting ring;

[0017] The outer wall of the second limiting ring is welded to the inner wall of the main body of the detector. The inner wall of the second limiting ring slides in contact with the outer wall of the telescopic rod, and one top end of the second limiting ring contacts one bottom end of the spring.

[0018] The needle body, used to detect blood circulation, is inserted inside the bottom end of the telescopic rod;

[0019] Two rubber blocks are provided, which are embedded inside the telescopic rod and are used to clamp and fix the needle body.

[0020] The slots are distributed on the outer wall of the main body of the detector, and the slots have a toothed structure;

[0021] A buckle is used for positioning the telescopic rod, and one end of the buckle engages with a slot.

[0022] Preferably, two rubber blocks are provided, and an arc-shaped groove is provided on one side of each rubber block. The arc-shaped groove on the surface of the rubber block fits into the needle body, and the arc-shaped surface of the rubber allows it to better clamp the needle body.

[0023] Preferably, the top of the adjusting cap has a slot, the inner wall of the slot at the top of the adjusting cap slides in contact with the outer wall of the telescopic rod, and a scale is provided on the outer wall of one end of the top of the telescopic block, so that the length of the needle body can be precisely adjusted by the scale.

[0024] This invention provides a handheld portable free flap blood supply detector. It has the following beneficial effects:

[0025] (1) The handheld portable free flap blood supply detector, when performing blood supply detection, the bottom end of the detector body is attached to the surface of the free flap. By holding the handle, the thumb presses the button. When the button is pressed, the buckle moves downward, so that the bottom end of the buckle can engage with the groove on the outer wall of the detector body. When the telescopic rod can move downward, it can drive the needle to extend from the bottom end of the detector body, so that the needle can puncture the flap to observe the blood supply status. After the blood supply is observed, the button is released. Because the buckle and the groove are engaged, the needle will not automatically retract into the detector, thereby avoiding the inside of the detector body from being contaminated by blood stains on the surface of the needle.

[0026] (2) The handheld portable free flap blood supply detector can reduce the pressure on the two rubber blocks by rotating the wrench on both sides of the detector body. When the two rubber blocks are no longer compressed, the clamping force on the needle body will be released, so that the needle body can be pulled out for quick replacement. When the new needle body is inserted between the two rubber blocks, the wrench is rotated to reset, so that the eccentric wheel at one end of the wrench can press the two rubber blocks by rotation, so that the two rubber blocks can quickly clamp and fix the needle body, thereby achieving the effect of quick needle replacement and improving the convenience of the device.

[0027] This solves the problem that in the current device, the needle retracts into the detector under the action of the spring, causing bloodstains on one end of the needle to contaminate the detector and thus posing a safety hazard of cross-contamination. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the telescopic rod structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the cross-sectional structure of the telescopic rod of this utility model;

[0032] Figure 5 This is a schematic diagram of the wrench of this utility model when opened.

[0033] In the diagram, 1. the main body of the detector; 2. the button; 3. the telescopic rod; 4. the first limit ring; 5. the spring; 6. the second limit ring; 7. the rubber block; 8. the needle body; 9. the handle; 10. the buckle; 11. the slot; 12. the scale bar; 13. the adjusting cap; 14. the wrench; and 15. the eccentric wheel. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1:

[0036] Please see Figure 1-5 This utility model provides a technical solution: a handheld portable free flap blood supply detector, comprising: a detector body 1, used for detecting the assembly and fixing of integral parts; further comprising: a telescopic rod 3, installed inside the detector body 1, with the outer wall of the telescopic rod 3 slidingly contacting the inner wall of the detector body 1; and a detection mechanism, installed inside the detector body 1, used for detecting flap blood supply; the detection mechanism includes:

[0037] A first limiting ring 4 is installed at the top end of the telescopic rod 3, and its inner wall is welded to the inner wall of the telescopic rod. A spring 5 is fitted onto the outside of the telescopic rod 3 and is used to return the telescopic rod 3 to its upward position. The top end of the spring 5 contacts the bottom of the first limiting ring 4. A second limiting ring 6 has its outer wall welded to the inner wall of the detector body 1. The inner wall of the second limiting ring 6 slides in contact with the outer wall of the telescopic rod 3, and the top end of the second limiting ring 6 contacts the bottom end of the spring 5. A needle body 8 is used to detect blood circulation and is inserted into the... The telescopic rod 3 has the following internal components: a rubber block 7 embedded inside the telescopic rod (two blocks are provided) for clamping and fixing the needle body 8; a handle 9 with its bottom end welded to the outer wall of the detector body 1; a button 2 welded to the top end of the telescopic rod 3 for pressing the telescopic rod 3 to extend or retract; slots 11 distributed on the outer wall of the detector body 1 with a toothed structure; and a buckle 10 for positioning the telescopic rod 3, with its bottom end engaging with the slot 11.

[0038] When performing blood circulation testing, the bottom end of the detector body 1 is placed against the surface of the free skin flap. By holding the handle 9 and pressing the button 2 with the thumb, the button 2 is pressed, causing the latch 10 to move downwards. This allows the bottom end of the latch 10 to engage with the groove 11 on the outer wall of the detector body 1. When the telescopic rod moves downwards, it allows the needle 8 to extend from the bottom end of the detector body 1, enabling the needle 8 to puncture the skin flap for observation of blood circulation. After blood circulation observation, the needle is released... When button 2 is turned on, the needle body 8 will not automatically retract into the detector because the buckle 10 and the slot 11 are engaged, thus avoiding contamination of the detector body 1 by bloodstains on the surface of the needle body 8. The principle of blood circulation detection has been disclosed in the prior art and will not be repeated in this solution. Referring to the patent CN118490189A, a postoperative flap blood circulation monitoring device is disclosed. The blood circulation judgment method adopts the well-known visual observation method, that is, the blood circulation of the flap is judged by observing the color, speed and bleeding range after acupuncture.

[0039] Example 2:

[0040] This utility model provides a technical solution: a handheld portable free flap blood supply detector. The outer wall of the top end of the detector body 1 has a threaded structure, and the top end of the detector body 1 is threadedly connected to the adjusting cap 13. Eccentric wheels 15 are distributed on both sides of the telescopic rod 3. The eccentric wheels 15 are rotatably connected to the two sides of the telescopic rod, and a wrench 14 is welded to one side of the eccentric wheel 15. There is a gap between the bottom of the telescopic rod 3 and the bottom end of the detector body 1. A slot is opened at the bottom of the detector body 1. Two rubber blocks 7 are provided, and an arc-shaped groove is opened on one side of each rubber block 7. The arc-shaped groove on the surface of the rubber block 7 fits against the needle body 8. A slot is opened at the top of the adjusting cap 13, and the inner wall of the slot at the top of the adjusting cap 13 is connected to the needle body 8. The telescopic rod 3 slides on the outer wall, and a scale is set on the outer wall of the top end of the telescopic block. By rotating the wrench 14 on both sides of the main body 1 of the detector, the eccentric wheel 15 at one end of the wrench 14 can reduce the pressure on the two rubber blocks 7. When the two rubber blocks 7 lose pressure, the clamping force on the needle body 8 will be released, so that the needle body 8 can be pulled out for quick replacement. When the new needle body 8 is inserted between the two rubber blocks 7, by rotating the wrench 14 to reset, the eccentric wheel 15 at one end of the wrench 14 can press the two rubber blocks 7 by rotation, so that the two rubber blocks 7 can quickly clamp and fix the needle body 8, which achieves the effect of quick replacement of the needle body 8 and improves the convenience of using the device.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A handheld portable free flap blood supply detector, comprising: The main body of the testing instrument (1) is used to test the assembly and fixing of the whole parts; Its features are: Also includes; The testing mechanism is installed inside the main body (1) of the testing instrument and is used to test the blood supply of the skin flap; Handle (9), one bottom end of which is welded to the outer wall of the main body (1) of the detector; Telescopic rod (3) is installed inside the main body (1) of the detector, and the outer wall of the telescopic rod (3) slides in contact with the inner wall of the main body (1) of the detector; Button (2), which is welded to one end of the top of the telescopic rod (3), is used to press the telescopic rod (3) to extend or retract.

2. The handheld portable free flap blood supply detector according to claim 1, characterized in that: The outer wall of the top end of the detector body (1) has a threaded structure, and the top end of the detector body (1) is threadedly connected to the adjusting cap (13).

3. The handheld portable free flap blood supply detector according to claim 1, characterized in that: Eccentric wheels (15) are distributed on both sides of the telescopic rod (3). The eccentric wheels (15) are rotatably connected to both sides of the telescopic rod (3), and a wrench (14) is welded to one side of the eccentric wheel (15).

4. The handheld portable free flap blood supply detector according to claim 1, characterized in that: There is a gap between the bottom of the telescopic rod (3) and the bottom end of the detector body (1), and the bottom of the detector body (1) is provided with a slot.

5. The handheld portable free flap blood supply detector according to claim 1, characterized in that: The testing institutions include: The first limiting ring (4) is installed at one end of the top of the telescopic rod (3), and the inner wall of the first limiting ring (4) is welded to the inner wall of the telescopic rod; A spring (5) is fitted outside the telescopic rod (3) and is used to return the telescopic rod (3) to its upward position. The top end of the spring (5) is in contact with the bottom of the first limiting ring (4). The outer wall of the second limiting ring (6) is welded to the inner wall of the main body (1) of the detector. The inner wall of the second limiting ring (6) slides in contact with the outer wall of the telescopic rod (3), and the top end of the second limiting ring (6) contacts the bottom end of the spring (5). The needle body (8) is used to detect blood circulation and is inserted inside the bottom end of the telescopic rod (3); Two rubber blocks (7) are provided, and the rubber blocks (7) are used to clamp and fix the needle body (8). The slots (11) are distributed on the outer wall of the main body (1) of the detector, and the slots (11) have a tooth-like structure; The buckle (10) is used for positioning the telescopic rod (3), and one end of the buckle (10) is engaged with the slot (11).

6. The handheld portable free flap blood supply detector according to claim 5, characterized in that: Two rubber blocks (7) are provided, and an arc-shaped groove is provided on one side of each rubber block (7). The arc-shaped groove on the surface of the rubber block (7) fits against the needle body (8).

7. The handheld portable free flap blood supply detector according to claim 2, characterized in that: The top of the adjusting cap (13) is provided with a slot, and the inner wall of the slot at the top of the adjusting cap (13) slides in contact with the outer wall of the telescopic rod (3). A scale strip (12) is provided on the outer wall at one end of the top of the telescopic rod (3).

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