Lower limb fixing device

Abstract

The utility model provides a lower limb fixing device which comprises a frame, a first sliding groove is formed in the inner wall of the frame in the length direction of the frame, and a second sliding groove is formed in the inner wall of the frame. The sliding assembly comprises a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate are adjacently arranged in the length direction of the frame and are both in sliding fit with the first sliding grooves, the first sliding plate is provided with second sliding grooves, and the second sliding plate is provided with at least two second sliding grooves; all the second sliding grooves are formed in the width direction of the frame. According to the device, the lower limbs of a patient are in a comfortable body position meeting the SPECT / CT imaging requirement under the condition that the probe rotates to collect images, it is guaranteed that the lower limbs, especially ankles, of the patient are kept in the fixed body position for a long time, therefore, the imaging quality is improved, motion artifacts are reduced, the matching degree during SPECT and CT image fusion is improved, and the imaging quality of the patient is improved. And later image post-processing analysis and accurate diagnosis are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of SPECT / CT imaging equipment, in particular to a lower limb fixing device. Background Art

[0002] SPECT / CT is an important medical method. It is a multimodal molecular imaging technology. It detects and records the gamma rays emitted by radioactive tracers introduced into target tissues or organs in the human body to obtain nuclear medicine SPECT functional metabolic images, and uses image fusion technology to superimpose them with CT anatomical structure images, which is conducive to the precise positioning and accurate qualitative diagnosis of lesions, especially in the diagnosis and treatment of bone lesions. During imaging, the patient needs to lie on the examination bed, and the patient is moved to the SPECT probe and CT scanning frame by moving the examination bed so that the imaging device in the probe / scanning frame can be used to image the patient's part to be detected.

[0003] However, current SPECT / CT lower limb-related imaging usually takes a long time, and the existing equipment examination bed does not have a device for fixing the lower limbs. Therefore, when imaging the patient's lower limbs, especially the ankles, the patient's body position may change due to long examination time and unbearable pain, resulting in SPECT image motion artifacts, SPECT and CT image fusion dislocation and other problems, further affecting the accuracy of image analysis and diagnosis. In addition, the lower limb fixation device used in the existing CT imaging process mainly focuses on fixing the legs, and pays less attention to the fixation of the ankles, or focuses on making the patient's feet appear in a posture with the soles of the feet side by side and flat on the scanning bed board. However, in actual applications, it is found that some patients with ankle diseases may not be able to complete and maintain this position due to pain or limited joint movement, or forced posture caused by the disease. In addition, the existing fixation device has poor protection performance for the lower limbs, which may cause damage to the diseased lower limbs. Summary of the invention

[0004] The utility model provides a lower limb fixing device to solve the above technical problems.

[0005] A lower limb fixation device, the lower limb fixation device comprising: a frame, an inner wall of the frame is provided with a first slide groove along the length direction of the frame; a sliding assembly, the sliding assembly comprising a first slide plate and a second slide plate, the first slide plate and the second slide plate are adjacently arranged along the length direction of the frame and both slide in sliding cooperation with the first slide groove, and the first slide plate is provided with a second slide groove, the second slide plate is provided with at least two second slide grooves, and all the second slide grooves are arranged along the width direction of the frame; a first fixing assembly, a second fixing assembly and a third fixing assembly, the first fixing assembly is arranged on the first slide plate and slides in cooperation with the second slide groove, the first fixing assembly is used to fix the knee; the second fixing assembly and the third fixing assembly are arranged on the second slide plate at intervals and slide in cooperation with two second slide grooves respectively, the second fixing assembly is used to fix the ankle, and the third fixing assembly is used to fix the foot.

[0006] Preferably, the cross-sectional profile of the frame is an arc shape.

[0007] Preferably, there are two first slide plates and two second slide plates, the two first slide plates are adjacently arranged along the width direction of the frame, the two second slide plates are adjacently arranged along the width direction of the frame, there are two first slide grooves, each of the first slide plates is slidably matched with the first slide groove, and each of the second slide plates is slidably matched with the second slide groove.

[0008] Preferably, the first fixing assembly includes a first slider, a first support rod and a first fixing assembly, the first slider is connected to one end of the first support rod, the other end of the first support rod is rotatably connected to the first fixing frame, the first slider is slidably matched with the second slide groove, and the first fixing frame is used to fix the knee.

[0009] Preferably, the second fixing assembly includes a second slider, a second support rod and a second fixing assembly, the second slider is connected to one end of the second support rod, the other end of the second support rod is rotatably connected to the second fixing frame, the second slider is slidably matched with the second slide groove, and the second fixing frame is used to fix the ankle.

[0010] Preferably, the cross-section of the first fixing frame is an arc shape.

[0011] Preferably, the cross-section of the second fixing frame is an arc shape.

[0012] Preferably, the first support rod includes a first telescopic rod, a first sleeve and a first fastener, the first telescopic rod is connected to the first slider, the first sleeve is sleeved outside the first telescopic rod, and the first sleeve is fastened to the first telescopic rod through the first fastener.

[0013] Preferably, the second support rod includes a second telescopic rod, a second sleeve and a second fastener, the second telescopic rod is connected to the second slider, the second sleeve is sleeved outside the second telescopic rod, and the second sleeve is fastened to the second telescopic rod by the second fastener.

[0014] Preferably, the third fixing assembly includes a third slider, a third support rod, a rotating rod and a third fixing frame, the third slider is connected to one end of the third support rod, the third slider is slidingly matched with the second slide groove, the rotating rod is rotatably connected to the third support rod, the rotating rod can be deflected relative to the third support rod, the third fixing frame is connected to the rotating rod, and the third fixing frame is used to fix the foot.

[0015] Preferably, the third fixing frame includes a plantar support plate, a heel support plate and a rotating shaft, the plantar support plate is rotatably connected to the heel support plate via the rotating shaft, and the plantar support plate is connected to the rotating rod.

[0016] Preferably, the plantar support plate is provided with a restraint strap.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description and the drawings.

[0018] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of the frame described in one embodiment of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the back side of the frame described in one embodiment of the utility model.

[0022] Figure 3 It is a structural schematic diagram of a frame cross section described in one embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the overall structure of the lower limb fixing device described in one embodiment of the utility model.

[0024] Figure 5 It is a schematic diagram of the overall structure of the first fixing assembly described in one embodiment of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the second fixing assembly and the third fixing assembly described in an embodiment of the utility model.

[0026] In the figure: 100, lower limb fixing device; 110, frame; 111, first slide; 120, sliding assembly; 121, first slide plate; 122, second slide plate; 123, second slide; 130, first fixing assembly; 131, first slider; 132, first support rod; 1321, first telescopic rod; 1322, first sleeve; 1323, first fastener; 133, first fixing frame; 140, second fixing assembly; 141, second slider; 142, second support rod; 1421, second telescopic rod; 1422, second sleeve; 1423, second fastener; 143, second fixing frame; 150, third fixing assembly; 151, third slider; 152, third support rod; 153, rotating rod; 154, third fixing frame; 1541, plantar support plate; 1542, heel support plate; 1543, rotating shaft. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The present utility model provides a lower limb fixing device 100, such as Figures 1 to 4As shown, the lower limb fixation device 100 includes: a frame 110 , a sliding assembly 120 , a first fixing assembly 130 , a second fixing assembly 140 and a third fixing assembly 150 . Along the length direction of the frame 110, the inner wall of the frame 110 is provided with a first slide groove 111; the sliding assembly 120 includes a first slide plate 121 and a second slide plate 122, the first slide plate 121 and the second slide plate 122 are adjacently arranged along the length direction of the frame 110 and both slide in sliding cooperation with the first slide groove 111, and the first slide plate 121 is provided with a second slide groove 123, the second slide plate 122 is provided with at least two second slide grooves 123, and all the second slide grooves 123 are arranged along the width direction of the frame 110; the first fixing assembly 130 is arranged on the first slide plate 121 and slides in cooperation with the second slide groove 123, and the first fixing assembly 130 is used to fix the knee; the second fixing assembly 140 and the third fixing assembly 150 are arranged on the second slide plate 122 at intervals and slide in cooperation with the two second slide grooves 123 respectively, the second fixing assembly 140 is used to fix the ankle, and the third fixing assembly 150 is used to fix the foot.

[0030] The working principle and beneficial effects of the above technical solution are as follows: in the lower limb fixation device 100, the first slide plate 121 and the second slide plate 122 can move along the length direction of the frame 110 through the first slide groove 111, so as to adjust the longitudinal positions of the first fixing assembly 130, the second fixing assembly 140 and the third fixing assembly 150, and through the second slide groove 123, the first fixing assembly 130 can move laterally on the first slide plate 121, and the second fixing assembly 140 and the third fixing assembly 150 can move laterally on the second slide plate 122, so as to adjust the appropriate knee, ankle and foot fixing positions for different patients, ensure the fixing effect, adapt to patients of different heights and body shapes and lying habits, and improve the fixing effect of the lower limbs. Without affecting the rotation of the probe to collect images, the patient's lower limbs are placed in a more comfortable position that is conducive to the requirements of SPECT / CT imaging, ensuring that the patient's lower limbs, especially the ankles, are kept in a fixed position for a long time, thereby improving the imaging quality, reducing the occurrence of motion artifacts, and improving the matching degree when the SPECT and CT images are fused, which is convenient for the later image post-processing analysis and accurate diagnosis.

[0031] In order to further understand and explain the length direction and width direction of the frame 110, Figure 2 For example, the length direction of the frame is Figure 2 The direction indicated by any arrow on the center line S1 is the width direction of the frame. Figure 2 The direction indicated by any arrow on the center line S2.

[0032] In one embodiment, see Figure 3 , the cross-sectional profile of the frame 110 is an arc shape.

[0033] The working principle and beneficial effects of the above technical solution are: consistent with the curvature of the SPECT / CT examination bed, and improving the placement stability of the device.

[0034] In one embodiment, see Figure 1 and Figure 2 There are two first slides 121 and two second slides 122. The two first slides 121 are adjacently arranged along the width direction of the frame 110, and the two second slides 122 are adjacently arranged along the width direction of the frame 110. There are two first slide grooves 111, and each first slide 121 is slidably matched with the first slide groove 111, and each second slide 122 is slidably matched with the second slide groove 123.

[0035] The working principle and beneficial effects of the above technical solution are: the two first slide plates 121 and the second slide plate 122 can support the patient's legs, and are suitable for fixing the patient's lower limbs during double-leg examination.

[0036] In one embodiment, see Figure 4 and Figure 5 The first fixing assembly 130 includes a first slider 131, a first support rod 132 and a first fixing frame 133. The first slider 131 is connected to one end of the first support rod 132, and the other end of the first support rod 132 is rotatably connected to the first fixing frame 133. The first slider 131 is slidably matched with the second slide groove 123, and the first fixing frame 133 is used to fix the knee.

[0037] The working principle and beneficial effects of the above technical solution are as follows: the first slider 131 can slide on the second slide groove 123, thereby driving the first support rod 132 and the first fixing frame 133 to slide, and the first fixing frame 133 supports the knee, thereby fixing the knee at the corresponding position.

[0038] In one embodiment, see Figure 4 and Figure 5 The second fixing assembly 140 includes a second slider 141, a second support rod 142 and a second fixing frame 143. The second slider 141 is connected to one end of the second support rod 142, and the other end of the second support rod 142 is rotatably connected to the second fixing frame 143. The second slider 141 is slidably matched with the second slide groove 123, and the second fixing frame 143 is used to fix the ankle.

[0039] The working principle and beneficial effects of the above technical solution are as follows: the second slider 141 can slide on the second slide groove 123 on the second slide plate 122, thereby driving the second support rod 142 and the second fixing frame 143 to slide, and the second fixing frame 143 supports the ankle, thereby fixing the ankle at the corresponding position.

[0040] In one embodiment, see Figure 3The cross-section of the first fixing frame 133 is an arc shape. Furthermore, the inner layer of the first fixing frame 133 is provided with a silicone protective pad.

[0041] The working principle and beneficial effects of the above technical solution are: better fit to the patient's knee, improved fixation stability and comfort.

[0042] In one embodiment, see Figure 3 The cross-section of the second fixing frame 143 is an arc shape. Furthermore, the inner layer of the second fixing frame 143 is provided with a silicone protective pad.

[0043] The working principle and beneficial effects of the above technical solution are: better fit to the patient's ankle, improved fixation stability and comfort.

[0044] In one embodiment, see Figure 5 The first support rod 132 includes a first telescopic rod 1321, a first sleeve 1322 and a first fastener 1323. The first telescopic rod 1321 is connected to the first slider 131. The first sleeve 1322 is sleeved outside the first telescopic rod 1321. The first sleeve 1322 and the first telescopic rod 1321 are fastened together by the first fastener 1323.

[0045] The working principle and beneficial effects of the above technical solution are as follows: the first fixing frame 133 can be lifted and lowered by the cooperation between the first telescopic rod 1321 and the first sleeve 1322, and is fastened by the second fastener 1423, so as to adjust the support height of the knee.

[0046] In one embodiment, see Figure 6 The second support rod 142 includes a second telescopic rod 1421, a second sleeve 1422 and a second fastener 1423. The second telescopic rod 1421 is connected to the second slider 141. The second sleeve 1422 is sleeved outside the second telescopic rod 1421. The second sleeve 1422 and the second telescopic rod 1421 are fastened together by the second fastener 1423.

[0047] The working principle and beneficial effects of the above technical solution are as follows: through the cooperation of the second telescopic rod 1421 and the second sleeve 1422, the second fixing frame 143 can be raised and lowered, and fastened by the second fastener 1423, so as to adjust the support height of the ankle to accommodate some patients who cannot lie flat due to lower limb pain caused by diseases such as lower limb atherosclerosis obliterans.

[0048] In one embodiment, see Figure 6The third fixing assembly 150 includes a third slider 151, a third support rod 152, a rotating rod 153 and a third fixing frame 154. The third slider 151 is connected to one end of the third support rod 152. The third slider 151 slides with the second slide groove 123. The rotating rod 153 is rotatably connected to the third support rod 152. The rotating rod 153 can deflect relative to the third support rod 152. The third fixing frame 154 is connected to the rotating rod 153. The third fixing frame 154 is used to fix the foot.

[0049] The working principle and beneficial effects of the above technical solution are as follows: the third slider 151 can slide on the second slide groove 123 on the second slide plate 122, driving the third fixing frame 154 to slide, and the third fixing frame 154 supports the foot, and the supporting angle can be adjusted through the rotating rod 153, so that the third fixing component 150 fits and adapts to a more comfortable angle of the patient's foot.

[0050] For further information, see Figure 6 The second slider 141 and the third slider 151 are an integrated structure.

[0051] The working principle and beneficial effects of the above technical solution are as follows: the second fixing assembly 140 and the third fixing assembly 150 are a linkage structure to stabilize the fixed position.

[0052] In one embodiment, see Figure 6 The third fixing frame 154 includes a sole support plate 1541 , a heel support plate 1542 and a rotating shaft 1543 . The sole support plate 1541 is rotatably connected to the heel support plate 1542 via the rotating shaft 1543 , and the sole support plate 1541 is connected to the rotating rod 153 .

[0053] The working principle and beneficial effects of the above technical solution are as follows: the angle between the heel support plate 1542 and the sole support plate 1541 can be adjusted through the rotating shaft 1543, so that the third fixing frame 154 fits and adapts to a more comfortable angle of the patient's foot.

[0054] In one embodiment, the sole support plate 1541 is provided with a restraint strap (not shown in the figure).

[0055] The working principle and beneficial effects of the above technical solution are: the sole of the patient's foot can be fixed on the sole support plate 1541 to fix the sole and toes, which are the main parts that are prone to displacement during the examination.

[0056] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A lower limb fixation device (100), characterized in that: The lower limb fixing device (100) comprises: A frame (110), wherein a first sliding groove (111) is provided on an inner wall of the frame (110) along a length direction of the frame (110); A sliding assembly (120), the sliding assembly (120) comprising a first slide plate (121) and a second slide plate (122), the first slide plate (121) and the second slide plate (122) being adjacently arranged along the length direction of the frame (110) and both slidingly cooperate with the first slide groove (111), the first slide plate (121) being provided with a second slide groove (123), the second slide plate (122) being provided with at least two second slide grooves (123), and all the second slide grooves (123) being arranged along the width direction of the frame (110); A first fixing component (130), a second fixing component (140) and a third fixing component (150), wherein the first fixing component (130) is disposed on the first slide plate (121) and slidably cooperates with the second slide groove (123), and the first fixing component (130) is used to fix the knee; the second fixing component (140) and the third fixing component (150) are disposed on the second slide plate (122) at intervals and slidably cooperate with two of the second slide grooves (123) respectively, and the second fixing component (140) is used to fix the ankle, and the third fixing component (150) is used to fix the foot.

2. The lower limb fixation device (100) according to claim 1, characterized in that: The cross-sectional profile of the frame (110) is in the shape of an arc.

3. The lower limb fixation device (100) according to claim 1, characterized in that: There are two of each of the first slide plate (121) and the second slide plate (122), the two first slide plates (121) are adjacently arranged along the width direction of the frame (110), and the two second slide plates (122) are adjacently arranged along the width direction of the frame (110), there are two first slide grooves (111), each of the first slide plates (121) is slidably matched with the first slide groove (111), and each of the second slide plates (122) is slidably matched with the second slide groove (123).

4. The lower limb fixation device (100) according to claim 1, characterized in that: The first fixing assembly (130) includes a first slider (131), a first support rod (132) and a first fixing frame (133), the first slider (131) is connected to one end of the first support rod (132), the other end of the first support rod (132) is rotatably connected to the first fixing frame (133), the first slider (131) is slidably matched with the second slide groove (123), and the first fixing frame (133) is used to fix the knee.

5. The lower limb fixation device (100) according to claim 4, characterized in that: The second fixing assembly (140) comprises a second slider (141), a second support rod (142) and a second fixing frame (143); the second slider (141) is connected to one end of the second support rod (142); the other end of the second support rod (142) is rotatably connected to the second fixing frame (143); the second slider (141) is slidably matched with the second slide groove (123); and the second fixing frame (143) is used for fixing the ankle.

6. The lower limb fixation device (100) according to claim 5, characterized in that: The cross-sectional shape of the first fixing frame (133) is an arc shape; and / or, The cross-section of the second fixing frame (143) is in the shape of an arc.

7. The lower limb fixation device (100) according to claim 5, characterized in that: The first support rod (132) comprises a first telescopic rod (1321), a first sleeve (1322) and a first fastener (1323), the first telescopic rod (1321) is connected to the first slider (131), the first sleeve (1322) is sleeved outside the first telescopic rod (1321), and the first sleeve (1322) and the first telescopic rod (1321) are fastened together by the first fastener (1323); and / or, The second support rod (142) comprises a second telescopic rod (1421), a second sleeve (1422) and a second fastener (1423); the second telescopic rod (1421) is connected to the second slider (141); the second sleeve (1422) is sleeved outside the second telescopic rod (1421); the second sleeve (1422) and the second telescopic rod (1421) are fastened together by the second fastener (1423).

8. The lower limb fixation device (100) according to any one of claims 1 to 7, characterized in that: The third fixing assembly (150) comprises a third slider (151), a third support rod (152), a rotating rod (153) and a third fixing frame (154); the third slider (151) is connected to one end of the third support rod (152); the third slider (151) is slidably matched with the second slide groove (123); the rotating rod (153) is rotatably connected to the third support rod (152); the rotating rod (153) can deflect relative to the third support rod (152); the third fixing frame (154) is connected to the rotating rod (153); and the third fixing frame (154) is used to fix the foot.

9. The lower limb fixation device (100) according to claim 8, characterized in that: The third fixing frame (154) comprises a sole support plate (1541), a heel support plate (1542) and a rotating shaft (1543); the sole support plate (1541) is rotatably connected to the heel support plate (1542) via the rotating shaft (1543); and the sole support plate (1541) is connected to the rotating rod (153).

10. The lower limb fixation device (100) according to claim 9, characterized in that: The sole support plate (1541) is provided with a binding belt.

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