A blood oxygen saturation probe

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially a kind of blood oxygen saturation probe.The technology includes probe body, the front side of the probe body clamping end is provided with first clamping block, the upper side of first clamping block is provided with second clamping block, the contact surface of first clamping block and second clamping block is all provided with recess for the knuckle embedding of finger, first clamping block is provided with the clamping mechanism that it is with second clamping block and is in upper and lower clamping cooperation, first clamping block is provided with the connecting mechanism that it is connected with probe body.The utility model is connected by second clamping block and first clamping block with probe body, after the finger is inserted into probe body after passing between first clamping block and second clamping block, the knuckle of finger is further clamped by second clamping block and first clamping block, so as to avoid the relatively thin finger from probe body and fall off.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a blood oxygen saturation probe. Background Technology

[0002] Blood oxygen saturation is an important physiological parameter reflecting respiratory and circulatory function. Blood oxygen saturation monitoring is widely used in clinical practice in internal medicine, surgery, intensive care units, etc. For example, it needs to be worn throughout the operation / anesthesia until the patient wakes up and vital signs are stable. It also needs to be worn intermittently for the management of some chronic diseases (such as COPD and heart failure). Finger clip probes are generally the most commonly used.

[0003] However, in the current use of finger clip probes, in order to avoid prolonged tight clamping that could cause local skin pressure ischemia, resulting in pain, numbness or tingling sensations for the patient, and to avoid clamping too tightly and compressing blood vessels, which could reduce local blood flow and prevent the probe from detecting sufficient pulse signals, thus displaying low blood oxygen saturation (false low value) or being unable to read data, the clamping force of existing finger clip probes is limited.

[0004] In actual use, when patients with slender fingers use the device, or when their fingers are thinner due to disease or reduced flesh, the probe may not hold the finger firmly enough, making it easier for the finger to move within the probe and causing it to fall out. Furthermore, if the finger is too thin and the probe does not hold it firmly enough, the fingertip may move within the probe, potentially causing motion artifacts and interfering with the data. Utility Model Content

[0005] The purpose of this invention is to provide a blood oxygen saturation probe that avoids falling off when used by patients with thin fingers.

[0006] The blood oxygen saturation probe includes a probe body, a first clamping block is provided on the front side of the clamping end of the probe body, a second clamping block is provided above the first clamping block, and the contact surfaces of the first clamping block and the second clamping block are both provided with grooves for the insertion of finger knuckles. The first clamping block is provided with a clamping mechanism that allows it to clamp and engage with the second clamping block from above. The first clamping block is also provided with a connecting mechanism that connects it to the probe body.

[0007] Furthermore, a protective layer is provided in the grooves of both the first clamping block and the second clamping block.

[0008] Further, the clamping mechanism comprises a fixing frame with a "-shaped structure, the opening of the fixing frame faces downward, the bottom end of the side wall of the fixing frame is fixed to the top of the first clamping block, and the second clamping block is located in the fixing frame; The top of the fixing frame is provided with a threaded hole communicating vertically, a bolt in threaded fit with the threaded hole is disposed in the threaded hole, and the screw rod of the bolt is connected to the second clamping block.

[0009] Further, a fixing post is fixed at the end of the screw rod of the bolt, a circular groove for inserting the fixing post is formed on the top of the second clamping block, and a bearing is installed between the fixing post and the circular groove.

[0010] Further, the second clamping block is provided with a limiting assembly for preventing the second clamping block from horizontally rotating in the fixing frame.

[0011] Further, the limiting assembly comprises a limiting block, the limiting block is located between the side wall of the second clamping block and the side wall of the fixing frame, the limiting block is fixed to the side wall of the second clamping block, and a sliding groove for the limiting block to insert into and slide up and down is formed on the inner side wall of the fixing frame.

[0012] Further, there are two limiting blocks, which are symmetrically fixed on both sides of the second clamping block.

[0013] Further, the connecting mechanism comprises a horizontally arranged connecting rod, a fixing block is fixed on the front side wall of the probe body, one end of the connecting rod is fixed to the first clamping block, and the other end of the connecting rod is connected to the fixing block.

[0014] Further, an external thread is formed on the outer side wall of one end of the connecting rod close to the fixing block, and a threaded groove in threaded fit with the external thread at the end of the connecting rod is formed on the fixing block.

[0015] Further, the connecting mechanism comprises a connecting frame with a "-shaped structure, the opening of the connecting frame faces downward, the probe body is located in the connecting frame, the connecting frame is fixed to the fixing frame via a connecting plate, and a bolt is disposed on the side wall of the connecting frame.

[0016] Compared with the prior art, the present utility model has the following beneficial effects: In the present utility model, the second clamping block and the first clamping block are connected with the probe body, so that after a finger passes between the first clamping block and the second clamping block, it can be inserted into the probe body, and the finger phalanx is further clamped by the second clamping block and the first clamping block, thereby preventing a relatively thin finger from falling off from the probe body. Description of Drawings

[0017] Figure 1 is a structural schematic diagram of the present utility model; Figure 2 is the Figure 1 top structural schematic diagram; Figure 3 for Figure 1 A schematic diagram of the left-side structure of the central fixed frame, the second clamping block, and the first clamping block; Figure 4 This is another structural schematic diagram of the present invention; Figure 5 for Figure 4 A top-view structural diagram; The components in the diagram are named as follows: 1. Probe body; 2. Fixing frame; 3. Bolt; 4. Fixing post; 5. Second clamping block; 6. First clamping block; 7. First protective layer; 8. Second protective layer; 9. Connecting rod; 10. Fixing block; 11. Limiting block; 12. Connecting frame; 13. Connecting plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0019] The blood oxygen saturation probe described in this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the device includes a probe body 1, which is a conventional finger-clamp pulse oximeter probe. A first clamping block 6 is provided on the front side of the clamping end of the probe body 1. The clamping end of the probe body 1 is the end into which the patient's finger is inserted, and its front side is the side into which the finger is inserted. Figure 1 As shown in the middle position, the finger is inserted from the left end of the probe body 1, the left end of the probe body 1 is the clamping end, and the left side of the probe body 1 is the front side.

[0020] A second clamping block 5 is disposed above the first clamping block 6. Both the first clamping block 6 and the second clamping block 5 have grooves on their contact surfaces for the insertion of finger knuckles. The clamping surface is the side that contacts the finger. The top surface of the first clamping block 6 is the clamping surface, and the bottom end of the second clamping block 5 is the clamping surface. Figure 1 As shown, the groove is a slot that connects the left and right sides, and as... Figure 3 As shown, the groove is arc-shaped, which facilitates contact between the finger knuckles and the groove. Moreover, the finger knuckles being located in the groove can restrict the forward and backward movement of the finger, preventing the finger from moving between the second clamping block 5 and the first clamping block 6, thus increasing the restraining effect. Of course, the depth of the grooves on the second clamping block 5 and the first clamping block 6 is much smaller than the thickness of the finger knuckles. That is, even when the smallest finger is placed in the groove, there will still be a gap between the second clamping block 5 and the first clamping block 6, allowing the second clamping block 5 and the first clamping block 6 to clamp the finger.

[0021] A first protective layer 7 is provided in the groove of the first clamping block 6, and a second protective layer 8 is provided in the groove of the second clamping block 5. The first protective layer 7 and the second protective layer 8 are made of rubber or sponge material. The first protective layer 7 and the second protective layer 8 prevent the first clamping block 6 and the second clamping block 5 from directly contacting the phalanx of the finger, thereby reducing discomfort.

[0022] A fixing frame 2 with a "匚"-shaped structure is provided above the second clamping block 5, the opening of the fixing frame 2 faces downward, the length of the second clamping block 5 is smaller than that of the first clamping block 6, the second clamping block 5 is located in the fixing frame 2, the bottom end of the side wall of the fixing frame 2 is fixed to the top of the first clamping block 6, and the distance between the two side walls of the fixing frame 2 is consistent with the length of the first clamping block 6, so that the side wall of the fixing frame 2 is fixed to the top of the first clamping block 6; a vertically through threaded hole is opened at the top of the fixing frame 2, a bolt 3 in threaded fit with the threaded hole is provided in the threaded hole, the screw rod of the bolt 3 is connected to the second clamping block 5, through the threaded fit between the bolt 3 and the top of the fixing frame 2, the bolt 3 drives the second clamping block 5 to move up and down, so that the second clamping block 5 and the first clamping block 6 form a clamping fit to clamp the phalanx of the finger; this paragraph constitutes the clamping mechanism that enables the first clamping block 6 and the second clamping block 5 to form an upper-lower clamping fit.

[0023] Certainly, in some embodiments, the clamping mechanism may also be configured such that insertion blocks are vertically fixed at the bottoms of the front and rear sides of the second clamping block 5, the top of the first clamping block 6 is provided with sliding grooves for the insertion blocks to insert into and slide vertically, bolts are provided on both the front and rear side walls of the first clamping block 6, the insertion blocks are fixed in the sliding grooves by the bolts, and the distance between the first clamping block 6 and the second clamping block 5 is controlled by the moving distance of the insertion blocks in the sliding grooves, so that the first clamping block 6 and the second clamping block 5 clamp the finger.

[0024] A fixing post 4 is fixed to the end of the screw rod of the bolt 3, the diameter of the fixing post 4 is consistent with the diameter of the screw rod of the bolt 3, a circular groove for inserting the fixing post 4 is opened at the top of the second clamping block 5, a bearing is installed between the fixing post 4 and the circular groove, the inner ring of the bearing is fixedly sleeved on the fixing post 4, and the outer ring of the bearing is fixed to the side wall of the circular groove. The fixing post 4 and the second clamping block 5 are connected by the bearing, and when the bolt 3 rotates, the second clamping block 5 can also be prevented from rotating along with the bolt 3; certainly, in some embodiments, a spring may also be vertically fixed between the second clamping block 5 and the first clamping block 6 on both sides of the groove, the second clamping block 5 and the first clamping block 6 are connected by the spring, the screw rod of the bolt 3 abuts against the top of the second clamping block 5, when the bolt 3 is screwed downward, the second clamping block 5 moves downward to compress the spring, and when the bolt 3 rotates upward, the spring recovers its elasticity to move the second clamping block 5 upward.

[0025] A limiting block 11 is provided between the side wall of the second clamping block 5 and the side wall of the fixed frame 2. The limiting block 11 is fixed to the side wall of the second clamping block 5. The inner side wall of the fixed frame 2 has a groove for the limiting block 11 to be inserted and slide up and down. Two limiting blocks 11 are provided and symmetrically fixed on both sides of the second clamping block 5. The two limiting blocks 11 have a better limiting effect on the second clamping block 5. By inserting the limiting block 11 into the groove of the inner side wall of the fixed frame 2, the horizontal rotation of the second clamping block 5 is restricted, thereby preventing the second clamping block 5 from rotating arbitrarily. Of course, in some embodiments, a guide rod can also be vertically fixed to the top of the second clamping block 5. The top of the fixed frame 2 has a through hole for the guide rod to pass through and slide up and down. The length of the guide rod is the same as the length of the bolt 3. The guide rod is located in the through hole at the top of the fixed frame 2, which can also restrict the horizontal rotation of the second clamping block 5. This section constitutes a limiting component to prevent the second clamping block 5 from rotating horizontally within the fixed frame 2.

[0026] A fixing block 10 is fixed to the front side wall of the probe body 1. The fixing block 10 is fixed to the front side wall of the base plate of the probe body 1. A connecting rod 9 is horizontally arranged between the fixing block 10 and the first clamping block 6. One end of the connecting rod 9 is fixed to the first clamping block 6, and the other end of the connecting rod 9 is connected to the fixing block 10. This section constitutes the connecting mechanism that connects the first clamping block 6 and the probe body 1.

[0027] The connecting rod 9 has an external thread on the outer side wall near the fixing block 10. The fixing block 10 has a threaded groove that is threaded to the external thread at the end of the connecting rod 9. The connecting rod 9 and the fixing block 10 are detachably connected through the threaded engagement. When the second clamping block 5 and the first clamping block 6 are not needed, the connecting rod 9 can be removed from the fixing block 10.

[0028] like Figure 4 and Figure 5As shown, a connecting frame 12 with a "U" shape is provided above the probe body 1. The opening of the connecting frame 12 faces downward. The width of the probe body 1 is less than the distance between the two inner sidewalls of the connecting frame 12, so that the probe body 1 can be located inside the connecting frame 12. The connecting frame 12 is fixed to the fixing frame 2 by the connecting plate 13. Bolts are provided on the sidewalls of the connecting frame 12. The bolts are located on the rear sidewall of the connecting frame 12. The rear sidewall of the connecting frame 12 has a threaded hole. The bolt thread passes through the threaded hole on the rear sidewall of the connecting frame 12 and presses against the rear side of the probe body 1, so that the front sidewall of the connecting frame 12 is in close contact with the front side of the probe body 1, thereby connecting the connecting frame 12 and the probe body 1. When the second clamping block 5 and the first clamping block 6 are not needed, the bolts can be loosened and the connecting frame 12 can be removed from the probe body 1. The first clamping block 6 is connected to the probe body 1 through the fixing frame 2, the connecting plate 13 and the connecting frame 12. This section constitutes another structure of the connecting mechanism that connects the first clamping block 6 and the probe body 1.

[0029] The working principle and technical effects of this embodiment: When using this device, for patients with thin fingers, the gap between the first clamping block 6 and the second clamping block 5 is maximized by using bolt 3. The finger is then passed between the second clamping block 5 and the first clamping block 6 and inserted into the probe body 1. Bolt 3 is then turned downwards, causing the second clamping block 5 to move downwards, allowing the first clamping block 6 and the second clamping block 5 to clamp the finger joint. The first clamping block 6 and the second clamping block 5 are connected to the probe body 1, thus preventing the finger from falling out of the probe body 1 if it is too thin. Furthermore, clamping the finger joint by the first clamping block 6 and the second clamping block 5 reduces the left and right movement of the fingertip within the probe body 1, reducing motion artifacts caused by fingertip movement that could interfere with the data.

Claims

1. A blood oxygen saturation probe, comprising a probe body (1), characterized in that: A first clamping block (6) is arranged on the front side of the clamping end of the probe body (1), a second clamping block (5) is arranged above the first clamping block (6), and the contact surfaces of the first clamping block (6) and the second clamping block (5) are each provided with a groove for embedding a phalanx of a finger; A clamping mechanism that enables the first clamping block (6) and the second clamping block (5) to form an up-down clamping fit is arranged on the first clamping block (6), and a connecting mechanism that connects the first clamping block (6) to the probe body (1) is arranged on the first clamping block (6).

2. The blood oxygen saturation probe according to claim 1, characterized in that: Protective layers are respectively arranged in the grooves on the first clamping block (6) and the second clamping block (5).

3. The blood oxygen saturation probe according to claim 2, characterized in that: The clamping mechanism comprises a fixing frame (2) in a "匚"-shaped structure, the opening of the fixing frame (2) faces downward, the bottom end of the side wall of the fixing frame (2) is fixed to the top of the first clamping block (6), and the second clamping block (5) is located in the fixing frame (2); A vertically penetrating threaded hole is formed at the top of the fixing frame (2), a bolt (3) in threaded fit with the threaded hole is arranged in the threaded hole, and the screw rod of the bolt (3) is connected to the second clamping block (5).

4. The blood oxygen saturation probe according to claim 3, characterized in that: A fixing post (4) is fixed at the end of the screw rod of the bolt (3), a circular groove for inserting the fixing post (4) is formed at the top of the second clamping block (5), and a bearing is installed between the fixing post (4) and the circular groove.

5. The blood oxygen saturation probe according to claim 4, characterized in that: A limiting assembly for preventing the second clamping block (5) from rotating horizontally in the fixing frame (2) is arranged on the second clamping block (5).

6. The blood oxygen saturation probe according to claim 5, characterized in that: The limiting assembly comprises a limiting block (11), the limiting block (11) is located between the side wall of the second clamping block (5) and the side wall of the fixing frame (2), the limiting block (11) is fixed to the side wall of the second clamping block (5), and a sliding groove for the limiting block (11) to insert into and slide up and down is formed on the inner side wall of the fixing frame (2).

7. The blood oxygen saturation probe according to claim 6, characterized in that: Two limiting blocks (11) are provided and symmetrically fixed on two sides of the second clamping block (5).

8. The blood oxygen saturation probe according to claim 7, characterized in that: The connecting mechanism comprises a horizontally arranged connecting rod (9), a fixing block (10) is fixed on the front side wall of the probe body (1), one end of the connecting rod (9) is fixed to the first clamping block (6), and the other end of the connecting rod (9) is connected to the fixing block (10).

9. The blood oxygen saturation probe according to claim 8, characterized in that: An external thread is formed on the outer side wall of one end, close to the fixing block (10), of the connecting rod (9), and a thread groove in threaded fit with the external thread at the end of the connecting rod (9) is formed on the fixing block (10).

10. The blood oxygen saturation probe according to claim 3, characterized in that: The connecting mechanism comprises a connecting frame (12) in a "匚"-shaped structure, the opening of the connecting frame (12) faces downward, the probe body (1) is located in the connecting frame (12), the connecting frame (12) is fixed to the fixing frame (2) via a connecting plate (13), and a bolt is arranged on a side wall of the connecting frame (12).

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