Angle-adjustable scrotum bracket for varicocele examination

Abstract

The invention discloses an angle-adjustable scrotum bracket for varicocele examination, and relates to the technical field of medical instruments. The device comprises a base and a bearing assembly, a fluted disc is rotatably mounted on the upper surface of the base, a limiting assembly is mounted on the upper surface of the base, a lifting assembly is mounted on the upper surface of the fluted disc and comprises two symmetrically-distributed mounting lugs, the bearing assembly comprises a rotating frame, and the rotating frame is rotatably mounted between the two mounting lugs; two bearing grooves distributed in a mirror image mode are slidably formed in the rotating frame, a worm gear is fixedly installed at one end of a rotating shaft of the rotating frame, a worm is rotatably installed on one mounting lug, the worm is meshed with the worm gear, and suction cups are fixedly installed at the four corners of the lower surface of the base; according to the scrotum supporting device, angle adjustment of the bearing groove is achieved through an innovative worm wheel and worm mechanism, the inner curved surface of the bearing groove can be fully attached to the physiological curve of the scrotum of a patient, and the comfort level and the supporting effect are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a scrotal support with adjustable angle for varicocele examination. BACKGROUND

[0002] Varicocele is a common disease in the male urogenital system, referring to the abnormal dilation, elongation and tortuosity of the plexiform venous plexus within the spermatic cord due to blood flow obstruction or insufficient function of the venous valve. The incidence of this disease in the general male population is about 10-15%, and in infertile men it is as high as 30-40%. Accurate diagnosis is crucial for the selection of treatment options and prognosis evaluation, and medical examination is an indispensable part of the diagnosis process. During the clinical examination, the patient usually needs to maintain a supine position, and the doctor assesses the condition of the spermatic vein through visual examination, palpation and possibly ultrasonic Doppler examination. However, due to the special anatomical structure and physiological characteristics of the scrotum and its contents, appropriate support and exposure are often required during the examination to ensure the accuracy of the examination and the comfort of the patient. Traditional examination methods rely mainly on the doctor's technique or simple soft cushion support, which has obvious shortcomings: on the one hand, it cannot provide stable and reliable support, which may affect the accuracy of the examination results; on the other hand, it is difficult to adjust according to individual differences of patients, and the comfort is poor.

[0003] There are some medical devices for scrotal support in the prior art. For example, Chinese patent CN 220695420 U discloses a scrotal support, which includes a base and a movable support, the movable support includes an integral connecting part and a support part, the connecting part is elongated and the end is hinged to the base, the width of the connecting part gradually increases from the hinged end to the support part, the base includes a stable panel provided with a plurality of limiting grooves, the bottom of the movable support is hingedly provided with a limiting support rod matched with the limiting grooves, and the end of the base hinged to the movable support is movably provided with a support net bag. Although this device can provide a certain degree of support, it still has obvious limitations: first of all, it can only adjust the height direction and cannot achieve fine adjustment of the support angle; secondly, the support part lacks a size adjustment mechanism and cannot adapt to the size differences of different patients' scrotums; thirdly, the device lacks effective rotation positioning function and cannot meet the needs of multi-angle examination. SUMMARY

[0004] In order to solve the problems that the existing technology cannot adjust the angle of the support groove, the support part lacks a size adjustment mechanism, and cannot meet the needs of multi-angle examination; the purpose of the present application is to provide a scrotal support with adjustable angle for varicocele examination.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: an adjustable-angle scrotal support for varicocele examination, comprising a base and a support assembly. A toothed disc is rotatably mounted on the upper surface of the base, and a limiting assembly is mounted on the upper surface of the base. A lifting assembly is mounted on the upper surface of the toothed disc. The lifting assembly includes two symmetrically distributed mounting ears. The support assembly includes a rotating frame, which is rotatably mounted between the two mounting ears. Two mirror-distributed support grooves are slidably mounted inside the rotating frame. A worm gear is fixedly mounted on one end of the rotating shaft of the rotating frame, and a worm is rotatably mounted on one of the mounting ears, and the worm meshes with the worm gear.

[0006] Preferably, two mirror-distributed first connecting rods are hinged to both sides of the upper surface of the gear disc. Connecting blocks are hinged to the tops of the four first connecting rods, and second connecting rods are hinged to the tops of the four connecting blocks. The tops of the second connecting rods are hinged to corresponding mounting ears. Crossbars are fixedly installed between corresponding pairs of the four connecting blocks. First bidirectional lead screws are threaded into the two crossbars. The limiting component includes a sliding groove, which is fixedly installed on the upper surface of the gear disc. A conical block is slidably engaged within the sliding groove, and the tip of the conical block can be engaged with... A spring is fixedly installed in the tooth groove of the gear plate, and one end of the spring contacts one end of the conical block. A protective shell is fixedly installed on one of the mounting ears, and the worm gear and worm are installed in the protective shell. Suction cups are fixedly installed at the four corners of the lower surface of the base. A second bidirectional lead screw is rotatably installed in the rotating frame, and the second bidirectional lead screw is threaded into the bottom end of the two support grooves. Guide grooves are opened on the side of the two side walls of the rotating frame that are close to each other. Slider blocks are fixedly installed at both ends of the two support grooves, and the sliders are slidably locked in the corresponding guide grooves.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the worm gear can be driven to rotate slowly by rotating the adjustment knob of the worm gear as needed. Due to the self-locking characteristics and large reduction ratio of the worm gear and worm drive, the angle of the support groove can be precisely adjusted. This adjustment allows the curved surface of the support groove to fit completely with the lower surface of the scrotum, avoiding excessive local pressure, and at the same time placing the spermatic vein in the optimal examination position, thereby greatly improving comfort and support effect; 2. In this invention, by setting up a lifting component, the adjustment knob of the first bidirectional lead screw can be rotated according to the actual situation, and the two crossbars will be displaced relative to each other through thread transmission. This displacement is converted into the vertical movement of the mounting ear through four sets of linkage mechanisms. Due to the symmetrical linkage design, the support component always remains horizontal during the lifting process, and the height adjustment range can adapt to the needs of patients of different body types. 3. In this invention, by setting up a toothed disc and a limiting component, when it is necessary to change the inspection angle, gently push the toothed disc to rotate on the base. The inclined surface of the conical block interacts with the inclined surface of the tooth groove of the toothed disc, compressing the spring to temporarily disengage it. When rotated to the desired position, the spring's rebound force pushes the conical block back into the tooth groove, achieving correct positioning and meeting the needs of multi-angle inspection. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the base structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the chute of the present invention; Figure 4 This is a schematic diagram of the worm gear and worm structure of the present invention; Figure 5 This is a schematic diagram of the disassembled structure of the support component of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the rotating frame of the present invention.

[0010] In the diagram: 1. Base; 2. Gear plate; 3. Lifting assembly; 301. First connecting rod; 302. Connecting block; 303. Second connecting rod; 304. Mounting ear; 305. First double-acting lead screw; 306. Crossbar; 4. Support assembly; 401. Rotating frame; 4011. Guide groove; 402. Support groove; 4021. Slider; 403. Second double-acting lead screw; 5. Protective shell; 6. Suction cup; 7. Limiting assembly; 701. Slide groove; 702. Conical block; 703. Spring; 8. Worm gear; 9. Worm. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] Example: Figures 1-6As shown, this invention provides an adjustable-angle scrotal support for varicocele examination, including a base 1 and a support assembly 4. A toothed disc 2 is rotatably mounted on the upper surface of the base 1. The base 1 is made of medical-grade stainless steel, with a polished surface and an anti-corrosion coating, providing sufficient stability and durability. The toothed disc 2 is rotatably mounted on the center of the upper surface of the base 1 via a precision bearing. The toothed disc 2 is injection molded from high-strength engineering plastic, with an involute tooth shape. A limiting assembly 7 is installed on the upper surface of the base 1, located outside the toothed disc 2, for circumferential positioning of the toothed disc 2. A lifting assembly 3 is installed on the upper surface of the toothed disc 2, and the upper surface of the toothed disc 2 is provided with... The installation interface of the lifting assembly 3 is fixedly connected to the lifting assembly 3 by bolts. The lifting assembly 3 includes two symmetrically distributed mounting ears 304. The support assembly 4 includes a rotating frame 401, which is rotatably installed between the two mounting ears 304. The mounting ears 304 are made of reinforced engineering plastic and have embedded copper bushing bearings to ensure long-term wear resistance. The rotating frame 401 is installed between the two mounting ears 304 via a precision rotating shaft. The rotating frame 401 has a U-shaped structure and is made of medical-grade stainless steel plate bent into shape with a smooth and rounded inner surface. Two mirror-distributed support grooves 402 are slidably installed inside the rotating frame 401. The two support grooves 402 are mirror-distributed inside the rotating frame 401 and are injection molded from medical-grade silicone material. The scrotum is designed with good biocompatibility and flexibility. The radius of curvature of the support groove 402 is designed according to the average size of an adult scrotum. A worm gear 8 is fixedly installed at one end of the rotating shaft of the rotating frame 401. A worm 9 is rotatably installed on one of the mounting ears 304, and the worm 9 meshes with the worm gear 8. The worm gear 8 is made of bronze casting. The worm 9 is rotatably installed on the corresponding mounting ear 304 through a bearing seat. The worm 9 and the worm gear 8 form a transmission pair with self-locking characteristics. One end of the worm 9 is equipped with an adjustment knob. During examination, the distance between the two support grooves 402 can be adjusted by sliding within the rotating frame 401 according to the size of the scrotum, thereby adjusting the size of the internal space of the support groove 402. Medical sterile cloth can be placed inside the support groove 402 to support the scrotum. The scrotum is placed in the support groove 402. The support groove 402 can be raised or lowered and adjusted according to the actual situation using the lifting component 3. It can also be adjusted by using the worm gear 9 to drive the worm wheel 8 to rotate, which in turn drives the rotating frame 401 and the support groove 402 to adjust the angle, so that the support groove 402 fits the scrotum better, thereby improving the comfort during use. The angle adjustment of the support groove 402 is achieved through the innovative worm wheel 8 and worm gear 9 mechanism, so that the internal curved surface of the support groove 402 can fully fit the physiological curve of the patient's scrotum, greatly improving the comfort and support effect. It can also be adjusted by using the toothed disc 2 to drive the support groove 402 to rotate, so as to adjust the orientation of the support groove 402 for easy examination. The toothed disc 2 can be limited by the limiting component 7.

[0013] Two mirror-distributed first connecting rods 301 are hinged to both sides of the upper surface of the gear disc 2. Connecting blocks 302 are hinged to the tops of the four first connecting rods 301. Second connecting rods 303 are hinged to the tops of the four connecting blocks 302, and their tops are hinged to corresponding mounting ears 304. Crossbars 306 are fixedly installed between corresponding pairs of connecting blocks 302. First bidirectional lead screws 305 are threaded into the two crossbars 306. The lifting assembly 3 includes four symmetrically distributed linkage mechanisms. Each linkage mechanism is formed by hinged first connecting rods 301, second connecting rods 303, and connecting blocks 302. Both the first connecting rods 301 and second connecting rods 303 are made of medical-grade aluminum alloy. The surface is anodized, and the connecting block 302 is precision cast with a self-lubricating bearing inside to ensure flexible and noiseless rotation. A crossbar 306 is fixedly installed between each pair of corresponding connecting blocks 302. The crossbar 306 is a rectangular cross-section profile. A first bidirectional lead screw 305 is threaded into the center of the two crossbars 306. The lead screw adopts a trapezoidal thread. A knob is installed at one end of the first bidirectional lead screw 305. The surface has anti-slip texture for easy manual adjustment. In use, a telescopic sleeve can be used to protect the first bidirectional lead screw 305. The first bidirectional lead screw 305 can be rotated to move the two crossbars 306 closer or further apart. In conjunction with the first connecting rod 301 and the second connecting rod 303, the support groove 402 is raised and lowered for adjustment.

[0014] The limiting component 7 includes a slide groove 701, which is fixedly installed on the upper surface of the gear disk 2. A conical block 702 is slidably engaged within the slide groove 701, and the tip of the conical block 702 can be engaged in the tooth groove of the gear disk 2. A spring 703 is fixedly installed within the slide groove 701, and one end of the spring 703 contacts one end of the conical block 702. The slide groove 701 is a rectangular cross-section channel, which is precision machined to form an integral structure with the upper surface of the base 1. The conical block 702, made of wear-resistant alloy steel, is slidably arranged within the slide groove 701. The toothed disc 2 is made to match the shape of the tooth groove. The spring 703 is a stainless steel compression spring 703, which is installed inside the slide groove 701 to provide continuous clamping force to the conical block 702, ensuring reliable locking. The toothed disc 2 can be rotated by external force. The inclined edge of the tooth groove of the toothed disc 2 fits with the inclined edge of the conical block 702, and the conical block 702 is squeezed into the slide groove 701, compressing the spring 703. After rotation, the rebound force of the spring 703 can be used to make the tip of the conical block 702 get into the corresponding tooth groove on the toothed disc 2, thus limiting the toothed disc 2.

[0015] A protective shell 5 is fixedly mounted on one of the mounting ears 304, and the worm gear 8 and worm 9 are installed inside the protective shell 5. The protective shell 5 protects the worm gear 8 and worm 9. The protective shell 5 is made of transparent polycarbonate material and is fixed by a snap-fit ​​connection, which facilitates daily maintenance and cleaning. The transmission components such as the worm gear 8 and worm 9 are all installed inside the protective shell 5 to prevent dust intrusion and accidental contact.

[0016] Suction cups 6 are fixedly installed at the four corners of the lower surface of the base 1. The base 1 can be attached to the designated position by suction cups 6. The suction cups 6 are made of medical-grade silicone rubber material, which provides a reliable suction and fixation effect.

[0017] A second bidirectional lead screw 403 is rotatably mounted inside the rotating frame 401, and the second bidirectional lead screw 403 is threaded into the bottom end of the two support grooves 402. The lead screw is located at the bottom of the rotating frame 401 and uses a fine-pitch triangular thread. One end of the second bidirectional lead screw 403 is equipped with an adjustment knob, and the surface has anti-slip texture and direction indicator marks. Guide grooves 4011 are opened on the side of the two side walls of the rotating frame 401 that are close to each other. The guide grooves 4011 are rectangular channels. Slider blocks 40 are fixedly installed at both ends of the two support grooves 402. 21. The slider 4021 is made of polytetrafluoroethylene and forms a sliding pair with the guide groove 4011. The slider 4021 is slidably locked in the corresponding guide groove 4011. The second bidirectional lead screw 403 can be rotated to drive the two support grooves 402 to slide towards or away from each other in the rotating frame 401. The distance between the two support grooves 402 can be adjusted to adjust the size of the internal space of the support groove 402. The support groove 402 can drive the slider 4021 to slide in the guide groove 4011 on the rotating frame 401, which can improve the stability of the support groove 402.

[0018] Working principle: When using this invention, first place the base 1 on the examination table, usually at an appropriate position below the patient's pelvis. Press down on the base 1 so that the four suction cups 6 make full contact with the table surface and form a negative pressure adsorption. The suction cups 6 are made of highly elastic silicone material, which can adapt to different table surface materials and ensure a firm fixation even in slightly uneven surfaces. According to the size of the patient's scrotum, the adjustment knob of the second bidirectional screw 403 can be rotated. Since the second bidirectional screw 403 adopts a bidirectional thread design, when rotated, the two support grooves 402 can move towards or away from each other in the rotating frame 401 to adjust the distance between the two support grooves 402. Usually, it is initially adjusted to a medium width, and then fine-tuned after the scrotum is placed to achieve the best containment effect. According to the actual situation, the adjustment knob of the first bidirectional lead screw 305 can be rotated to cause relative displacement of the two crossbars 306 through threaded transmission. This displacement is converted into the vertical movement of the mounting ear 304 through a four-link mechanism. Due to the symmetrical linkage design, the support component 4 always remains horizontal during the lifting process, and the height adjustment range can adapt to the needs of patients of different body types. During the adjustment process, the angle variation range of the first connecting rod 301 and the second connecting rod 303 ensures stable support at any height. As needed, the worm gear 8 can be slowly rotated by rotating the adjustment knob of the worm 9. Because the worm gear 8 and worm 9 transmission have self-locking characteristics and a large reduction ratio, the angle of the support groove 402 can be precisely adjusted. This adjustment allows the curved surface of the support groove 402 to fit completely with the lower surface of the scrotum, avoiding excessive local pressure, while keeping the spermatic vein in the optimal examination position. The protective shell 5 effectively protects the transmission components and prevents hair or fabric from getting caught in. When the inspection angle needs to be changed, gently push the toothed disc 2 to rotate on the base 1. The inclined surface of the conical block 702 interacts with the inclined surface of the tooth groove of the toothed disc 2, compressing the spring 703 to temporarily disengage it. When rotated to the desired position, the rebound force of the spring 703 pushes the conical block 702 back into the tooth groove, achieving correct positioning and meeting the needs of multi-angle inspection. After inspection, first wipe the surface of the support groove 402 with a neutral detergent, then perform high-temperature and high-pressure sterilization or soaking in a chemical disinfectant. Regularly check the wear of each moving part and add medical-grade grease if necessary. When not in use for a long period of time, it is recommended to adjust the device to the transport position (lowest height and narrowest width) and store it in a dry and clean environment.

[0019] This invention provides a multifunctional, high-precision, and easy-to-operate scrotal support for varicocele examination through innovative structural design and precise mechanical transmission. This device solves the problems of limited adjustment function, insufficient comfort, and poor stability in the prior art, and has significant clinical application value.

[0020] Compared with traditional devices, this invention has the following outstanding advantages: First, it achieves true multi-dimensional adjustment, including precise control of four degrees of freedom: height, angle, width, and horizontal rotation; second, it adopts a reliable mechanical locking mechanism to ensure that no accidental displacement occurs during the examination; third, it emphasizes human-centered design, making it simple to operate and hygienic and safe; and fourth, it is highly adaptable and can meet the individualized needs of the vast majority of patients. The embodiments of the present invention are merely illustrative. Those skilled in the art can adjust the materials, dimensions, and configurations according to actual needs. All such changes and modifications fall within the protection scope of the present invention. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0021] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An angle-adjustable scrotal support for varicocele examination, comprising a base (1) and a supporting assembly (4), characterized in that: The upper surface of the base (1) is rotatably provided with a toothed disc (2), the upper surface of the base (1) is provided with a limiting assembly (7), the upper surface of the toothed disc (2) is provided with a lifting assembly (3), the lifting assembly (3) comprises two symmetrically-distributed mounting ears (304), the supporting assembly (4) comprises a rotating frame (401), the rotating frame (401) is rotatably arranged between the two mounting ears (304), the rotating frame (401) is slidably provided with two mirror-symmetrically-distributed supporting grooves (402), one end of the rotating shaft of the rotating frame (401) is fixedly provided with a worm wheel (8), one of the mounting ears (304) is rotatably provided with a worm (9), and the worm (9) is engaged with the worm wheel (8).

2. The angle-adjustable scrotal support for varicocele examination according to claim 1, characterized in that, The upper surface of the toothed disc (2) is hingedly provided with two mirror-symmetrically-distributed first connecting rods (301) on both sides, and the top end of each of the four first connecting rods (301) is hingedly provided with a connecting block (302).

3. The angle-adjustable scrotal support for varicocele examination according to claim 2, characterized in that, The second connecting rod (303) is hingedly arranged on each of the four connecting blocks (302), and the top end of the second connecting rod (303) is hingedly connected with the corresponding mounting ear (304).

4. The angle-adjustable scrotal support for varicocele examination according to claim 2, characterized in that, The two connecting blocks (302) corresponding to each other among the four connecting blocks (302) are fixedly provided with a cross rod (306), and the two cross rods (306) are threadedly inserted with a first bidirectional screw rod (305).

5. The angle adjustable scrotal support for varicocele examination according to claim 1, wherein, The limiting assembly (7) comprises a sliding groove (701), the sliding groove (701) is fixedly arranged on the upper surface of the toothed disc (2), the sliding groove (701) is slidably provided with a tapered block (702), and the tip of the tapered block (702) can be clamped in the tooth groove of the toothed disc (2).

6. The angle adjustable scrotal support for varicocele examination according to claim 5, characterized in that, The sliding groove (701) is fixedly provided with a spring (703), and one end of the spring (703) is in contact with one end of the tapered block (702).

7. The angle adjustable scrotal support for varicocele examination according to claim 1, wherein, One of the mounting ears (304) is fixedly provided with a protective shell (5), and the worm wheel (8) and the worm (9) are arranged in the protective shell (5).

8. The angle adjustable scrotal support for varicocele examination according to claim 1, characterized in that, The lower surface of the base (1) is fixedly provided with a suction cup (6) at the four corners.

9. The angle adjustable scrotal support for varicocele examination according to claim 1, wherein, The rotating frame (401) is rotatably provided with a second bidirectional screw rod (403), and the second bidirectional screw rod (403) is threadedly inserted into the bottom end of the two supporting grooves (402).

10. The angle adjustable scrotal support for varicocele examination according to claim 1, characterized in that, The two side walls of the rotating frame (401) are each provided with a guide groove (4011) on the side close to each other, both ends of the two supporting grooves (402) are fixedly provided with a sliding block (4021), and the sliding block (4021) is slidably clamped in the corresponding guide groove (4011).

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