External fixing device for treating stenosing tenosynovitis

Abstract

The invention discloses an external fixing device for treating stenosing tenosynovitis. The external fixing device comprises a bottom plate, a supporting table and a clamping and fixing device, the distance between the second palm fixing assembly and the first palm fixing assembly is controlled by rotating the distance adjusting screw rod in the forward direction or in the reverse direction, the distance can be adjusted to adapt to the lengths of different hands, and meanwhile adaptive adjustment on the widths of different palms can be achieved through the transmission assembly. In addition, the finger fixing assembly can be fixed at the front end of the second palm fixing assembly in a sliding mode, and adjustment and fixation can be achieved according to different fingers. Meanwhile, an extension plate on the finger fixing assembly can effectively protect nerves of fingers of a hand from being hurt during operation; suckers are arranged at the corners of the lower end face of the bottom plate, a plurality of U-shaped fixing clamps are arranged on the edge of the upper end face of the bottom plate, the fixing clamps are rotatably installed on a table with seamed edges, and the suckers can improve stability when used on a plane.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an external fixation device for treating stenosing tenosynovitis. Background Art

[0002] Stenosing tenosynovitis, also known as "electric finger" or "trigger finger", is a disease that affects the fingers or wrists. It is caused by increased friction between the tendon and the sheath in which it is located, resulting in inflammation and painful symptoms; it usually causes symptoms such as pain, swelling and limited movement in the fingers or hands. The treatment of tenosynovitis is generally through rest, cold compresses, massage, traction and other treatments, but this is a treatment with external assistance. When the above methods do not relieve or have no effect, surgery is generally used for incision treatment; during surgery, it is generally necessary to fix the patient's hand to facilitate the operation on the patient. At present, there are corresponding fixation devices, but now during surgery, all fingers are braked at the same time. The injection or acupuncture knife treatment of tenosynovitis is for a single finger. The previous technology is just a simple fixation without protection of the nerves, so a targeted fixation device is needed.

[0003] At present, there are corresponding fixing devices, such as patent No. CN215739748U which discloses an external fixation device for treating stenosing tenosynovitis of the thumb in children, which can fix the palm and four fingers through the glove sleeve, and at the same time, the elastic force of the elastic band can make two fixing rings clamp the arm, but the device can only fix the thumb, and cannot fix different fingers through adjustment, and the angle of the fixed fingers cannot be adjusted, which still has certain limitations; at the same time, patent No. CN207236893U discloses a fixator for stenosing tenosynovitis of the radial styloid process, which can realize the clamping adjustment of the wrist part through the fixing ring, and then connect with the thumb ring, so that the thumb ring can be adapted to the injured finger to achieve the fixation effect; however, the device does not make adaptive adjustments for the length of the palms of different people, and does not have a mechanism for adjusting and fixing different fingers.

[0004] Therefore, an external fixation device for treating stenosing tenosynovitis is needed to solve the above-mentioned technical problems, while being able to protect the nerves of the patient's fingers and being able to be used under a plane or by clamping. Summary of the invention

[0005] To solve the above technical problems, the present invention discloses an external fixation device for treating stenosing tenosynovitis, including: a bottom plate, a support platform, and a clamping and fixing device; the bottom end of the support platform is fixedly connected to the bottom plate, and the upper end is fixedly connected to the clamping and fixing device; the clamping and fixing device includes: an arm support plate, a first palm fixing component, a second palm fixing component, and a finger fixing component; the arm support plate is rotatably connected to the first palm fixing component, and the first palm fixing component is connected to the second palm fixing component through a distance adjustment screw, and the distance between the second palm fixing component and the first palm fixing component is controlled by turning or rotating the distance adjustment screw; a square groove is formed at the front end of the second palm fixing component, and the finger fixing component is slidably installed on the square groove;

[0006] The first palm fixing component includes a bearing platform, a transmission component, and an adjustment plate; a square groove is formed in the middle of the upper end of the bearing platform, adjustment plates are arranged at both ends of the inner side wall of the square groove, and the adjustment plates are rotatably connected through the transmission component; by controlling the forward or reverse rotation of the transmission component, the adjustment plates are controlled to approach or move away from each other;

[0007] The finger fixing component includes a sliding box, a vertical plate, a wedge plate, and a support component; the sliding box is slidably installed on the square groove at the front end of the second palm fixing component, the vertical plate is fixedly installed at the upper end of the sliding box, the wedge plate is rotatably installed on the vertical plate, an extension plate extends out of the inner side of the wedge plate, and a plurality of grooves are linearly arranged at the lower end of the wedge plate; the support component is movably installed at the upper edge of the support platform, and by controlling different support positions of the support component on the grooves, the rotation angle of the finger fixing wedge plate is controlled, and thus the fixing angle of the patient's finger is controlled;

[0008] Further, suction cups are arranged at the corners of the lower end surface of the bottom plate, and a plurality of U-shaped fixing clips are arranged at the edge of the upper end surface, and bolts are arranged on the U-shaped fixing clips;

[0009] Further, the support platform is a hollow structure, and a height adjustment mechanism is arranged on the back, and the height adjustment mechanism includes: a screw, a bevel gear, a follower rod, and a control handle; one end of the control handle passes through the side wall of the support platform and extends to the outside, and the other end is fixedly connected to the bevel gear, the lower end of the screw is rotatably connected to the bevel gear, and the upper end is fixedly connected to the upper end of the support platform; by controlling the forward or reverse rotation of the control handle, the up and down movement of the screw is controlled to achieve height adjustment;

[0010] Further, the transmission component includes: a support fixing block and a bidirectional screw; the brain of the support fixing block is fixedly installed with the support fixing block, and the bidirectional screw passes through the support fixing block and is respectively connected to the adjustment plates;

[0011] Further, the support assembly includes: a looped rod, a sliding block, and a limit pin; the sliding block is slidably mounted on the upper end of the support table, the looped rod is rotatably mounted at one end of the sliding block, a through hole is formed at the other end of the sliding block, the size of the through hole and a linear array, a circumferential array at one end on the upper end of the support table are adapted to the limit holes, the limit pin is movably mounted on the through hole, and a spring is provided between the limit pin and the sliding block;

[0012] Further, a plurality of through holes are linearly arrayed at the lower end inside the square groove at the front end of the second palm fixing assembly, and limit rods are mounted on the through holes;

[0013] Further, an adjusting knob is provided at the outer end of the bidirectional screw, and a soft cushion layer is provided at the holding part of the control handle;

[0014] Further, the upper ends of the first palm fixing assembly and the second palm fixing assembly are of an arc structure, which fits the biological anatomical structure of the human hand, and fixing straps are provided at both ends of the first palm fixing assembly and the second palm fixing assembly.

[0015] The beneficial effects of the present invention are:

[0016] In the present invention, the first palm fixing assembly is connected to the second palm fixing assembly through a distance adjusting screw, the distance between the second palm fixing assembly and the first palm fixing assembly is controlled by rotating the distance adjusting screw forward or backward, the distance can be adjusted to adapt to the lengths of different hands, and at the same time, the transmission assembly can be used to make an adaptive adjustment for different palm widths; in addition, the finger fixing assembly provided in the present invention can be slidably fixed at the front end of the second palm fixing assembly to achieve adjustment and fixation for different fingers; at the same time, the extension plate on the finger fixing assembly can effectively protect the nerves of the fingers from being damaged during the operation; in addition, the present invention is provided with suction cups at the corners of the lower end surface of the bottom plate and a plurality of U-shaped fixing clips at the edge of the upper end surface, the fixing clips can be rotatably mounted on a table with an edge, and the suction cups can increase stability when used on a flat surface, effectively preventing the situation that the patient's arm rotates when fixing the fingers, and can be selectively fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below.

[0018] Figure 1 is an overall structural schematic diagram of an external fixation device for treating stenosing tenosynovitis;

[0019] Figure 2 is another overall structural schematic diagram of an external fixation device for treating stenosing tenosynovitis;

[0020] Figure 3 It is a top view of an external fixation device for treating stenosing tenosynovitis;

[0021] Figure 4 It is an overall schematic diagram of the internal structure of an external fixation device for treating stenosing tenosynovitis;

[0022] Figure 5 It is an overall schematic diagram of the first palm fixation component of an external fixation device for treating stenosing tenosynovitis;

[0023] Figure 6 It is another overall schematic diagram of the first palm fixation component of an external fixation device for treating stenosing tenosynovitis;

[0024] Figure 7 It is an overall schematic diagram of the front end of the second palm fixation component of an external fixation device for treating stenosing tenosynovitis;

[0025] Figure 8 It is a partial schematic diagram of the front end of the second palm fixation component of an external fixation device for treating stenosing tenosynovitis;

[0026] Figure 9 It is a schematic diagram of the support component structure of an external fixation device for treating stenosing tenosynovitis.

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1 - bottom plate, 11 - U-shaped fixing clip, 12 - suction cup, 2 - support platform, 21 - limiting hole, 22 - sliding block, 23 - return-shaped rod, 24 - limiting pin, 241 - spring, 25 - circular through groove, 26 - control handle, 27 - follower rod, 28 - bevel gear, 3 - clamping and fixing device, 31 - arm support plate, 311 - bolt, 32 - first palm fixation component, 321 - fixing belt, 322 - adjusting plate, 323 - adjusting knob, 324 - limiting rod, 325 - transmission component, 3251 - support fixing block, 3252 - bidirectional screw, 326 - bearing platform, 33 - second palm fixation component, 331 - square groove, 332 - through hole, 333 - limiting column, 34 - finger fixation component, 341 - sliding box, 342 - vertical plate, 343 - wedge plate, 344 - groove, 345 - extension plate, 35 - bearing plate, 36 - distance adjusting screw, 37 - sliding rod. Detailed implementation method

[0029] The present invention discloses an external fixation device for treating stenosing tenosynovitis, comprising: a bottom plate 1, a support platform 2, and a clamping and fixing device 3; the bottom end of the support platform 2 is fixedly connected to the bottom end of the bottom plate 1, and the upper end is fixedly connected to the clamping and fixing device 3; the clamping and fixing device 3 includes: an arm support plate 31, a first palm fixing component 32, a second palm fixing component 33, and a finger fixing component 34; the arm support plate 31 is rotatably connected to the first palm fixing component 32, and the first palm fixing component 32 is connected to the second palm fixing component 33 through a distance adjusting screw 36. By rotating or turning the distance adjusting screw 36, the distance between the second palm fixing component 33 and the first palm fixing component 32 is controlled; a square groove 331 is formed at the front end of the second palm fixing component 33, and the finger fixing component 34 is slidably mounted on the square groove 331.

[0030] The first palm fixing component 32 includes a bearing platform 326, a transmission component 325, and an adjusting plate 322; a square groove 331 is formed in the middle of the upper end of the bearing platform 326. At both ends of the inner side wall of the square groove 331, adjusting plates 322 are provided, and the adjusting plates 322 are rotatably connected through the transmission component 325; by controlling the forward or reverse rotation of the transmission component 325, the adjusting plates 322 are controlled to approach or move away from each other.

[0031] The finger fixing component 34 includes a sliding box 341, a vertical plate 342, a wedge plate 343, and a support component; the sliding box 341 is slidably mounted on the square groove 331 at the front end of the second palm fixing component 33. The vertical plate 342 is fixedly mounted on the upper end of the sliding box 341, and the wedge plate 343 is rotatably mounted on the vertical plate 342. An extension plate 345 extends out from the inner side of the wedge plate 343. A number of grooves 344 are linearly arranged at the lower end of the wedge plate 343; the support component is movably mounted on the upper end edge of the support platform 2. By controlling different support positions of the support component on the grooves 344, the rotation angle of the finger fixing wedge plate 343 is controlled, and thus the fixing angle of the patient's finger is controlled; the vertical plates are connected by bolts, and the distance between the vertical plates can be adjusted by the bolts to better clamp the fingers and protect the nerves of the fingers; at the same time, the vertical plates are in the form of telescopic plates, and the height of the vertical plates can be adjusted according to the actual situation to adjust a more suitable angle for clamping, which is convenient for doctors to perform subsequent surgeries.

[0032] Embodiment 1

[0033] In this embodiment, suction cups 12 are provided at the corners of the lower end face of the bottom plate 1, and a number of U-shaped fixing clips 11 are provided at the edge of the upper end face. Bolts 311 are provided on the U-shaped fixing clips 11. By means of the suction cups 12 provided at the lower end, when in use, it can be firmly adsorbed on the plane to improve stability. At the same time, when there is an edge on the table, the U-shaped fixing clip can be rotated so that the U-shaped fixing clip and the edge are in a parallel position, and then the bolts 311 provided on the U-shaped fixing clip are tightened to fix the entire device. By providing two different mechanisms, selective fixing can be carried out during use. After fixing it, when the patient is stimulated, the process of unconsciously raising the arm will be restricted, which improves both stability and safety.

[0034] Embodiment 2

[0035] In this embodiment, the support platform 2 is of a hollow structure, and a height adjustment mechanism is provided on the back. The height adjustment mechanism includes: a screw rod, bevel gears 28, a follower rod 27, and a control handle 26. One end of the control handle 26 passes through the side wall of the support platform 2 and extends to the outside, and the other end is fixedly connected to the bevel gear 28. The lower end of the screw rod is rotatably connected to the bevel gear 28, and the upper end is fixedly connected to the upper end of the support platform 2. The up and down movement of the screw rod is controlled by rotating the control handle 26 forward or backward to achieve height adjustment. Through the height adjustment mechanism on the support platform 2, the height position of the patient after the palm is fixed can be adjusted to adapt to the best surgical angle. In this embodiment, the top end of the support platform 2 is an end cap and does not contact the four side walls of the support platform 2, ensuring that the height adjustment can be carried out smoothly. When adjusting the height, rotate the handle clockwise, and the handle drives the bevel gear 28 to rotate. The meshing bevel gears 28 change the horizontally rotating force into a vertically rotating force, thereby driving the screw rod to move up and down, and then realizing the height adjustment. In this embodiment, in order to ensure the stability during height adjustment, follower rods 27 can be provided on both sides of the screw rod. The follower rods 27 can slide up and down with the screw rod and can provide more support points during the up and down sliding process to ensure its stability. In addition, in this embodiment, a soft cushion layer is provided on the holding part of the control handle 26. By providing the soft cushion layer, the comfort of the user can be improved during use. The soft cushion layer can be made of materials such as silica gel and leather pads.

[0036] Embodiment 3

[0037] In this embodiment, the transmission assembly 325 includes: a support fixing block 3251 and a bidirectional screw 3252. The support fixing block 3251 is fixedly installed on the brain part of the support fixing block 3251, and the bidirectional screw 3252 passes through the support fixing block 3251 and is respectively connected to the adjusting plate 322. Through the transmission assembly 325, the distance between the adjusting plates 322 is adjusted, thereby realizing the adjustment of the palm width, so as to adapt to patients with different palm widths. When adjusting, rotate the bidirectional screw 3252 forward. Under the screw thread transmission of the screw, the adjusting plates 322 gradually approach each other inward to achieve the purpose of reducing the distance. Rotate the bidirectional screw 3252 in the reverse direction, and the adjusting plates 322 gradually move away from each other outward to achieve the purpose of increasing the distance. At the same time, in the embodiment, an adjusting knob is provided at the outer end of the bidirectional screw 3252, and the rotation of the bidirectional screw 3252 can be well controlled through the adjusting knob to realize the adjustment of the distance.

[0038] Embodiment 4

[0039] In this embodiment, the support assembly includes: a return-shaped rod 23, a sliding block 22, and a limit pin 24. The sliding block 22 is slidably installed on the upper end of the support table 2. The return-shaped rod 23 is rotatably installed at one end of the sliding block 22. A through hole 332 is opened at the other end of the sliding block 22. The size of the through hole 332 is adapted to the limit holes 21 linearly arranged at one end of the upper end of the support table 2. Arc-shaped limit holes 21 are also provided at the arc-shaped part. The limit pin 24 is movably installed on the through hole 332. A spring 241 is provided between the limit pin and the sliding block 22. Through the support assembly, the wedge plate 343 can be supported, and the purpose of adjusting the angle of the wedge plate 343 can be achieved through the support. At the same time, since an extension block is provided inside the wedge plate 343, the purpose of adjusting the angle of the fixed finger is further achieved. The support assembly is slidably installed on the upper end of the support table 2. When sliding, first pull up the limit pin 24, the spring 241 is compressed, and the limit pin 24 and the limit hole 21 move away from each other. At this time, the support assembly can be moved to the corresponding position. When moving to the required position, release the limit pin 24. Under the elastic force of the spring 241, the limit pin 24 gradually approaches the limit hole 21 and passes through the limit hole 21 to complete the fixation.

[0040] Embodiment 5

[0041] In this embodiment, a number of through holes 332 are linearly arrayed at the lower end inside the square groove 331 at the front end of the second palm fixing component 33, and limit posts 333 are installed on the through holes 332; by providing the limit posts 333, the position of the sliding component is limited to prevent it from sliding left and right on the square groove 331, forming a good fixing effect, facilitating the operation, and at the same time preventing accidental injury to the patient's fingers; at the same time, in this embodiment, in order to fix both the thumb and the other four fingers, both sides at the front end of the second palm fixing component 33 are formed into an arc shape. When it is necessary to clamp and fix the thumb, the arc-shaped structure can be slid to adapt to the position fixing of different fingers; the limiting principle of the connection and fixation of the limit post and the through hole is the same as that of the support component described in Embodiment 4, and no further description will be given here.

[0042] Embodiment 6

[0043] In this embodiment, the upper ends of the first palm fixing component 32 and the second palm fixing component 33 are arc-shaped structures, which fit the biological anatomical structure of the human hand, and fixing straps 321 are provided at both ends of the first palm fixing component 32 and the second palm fixing component 33; by providing the fixing straps 321 on the first palm fixing component 32 and the second palm fixing component 33, the fixing straps 321 can fix the patient's arm, and the fixing straps 321 can be adjusted in length to facilitate the fixing of palms with different thicknesses; at the same time, the fixing straps 321 have a certain elasticity and will not cause strangulation to the patient; the adjustment method of the fixing straps 321 in this embodiment is a prior art, and no further description will be given here.

[0044] The working principle of the present invention is as follows: After the preparation work is completed, first, select the fixing method according to the need. If there is an edge, turn down the U-shaped fixing clip 11 and tighten the bolt 311 to complete the fixing. If there is no edge, press the whole device after aligning it until the suction cup 12 sucks the plane. After the fixing is completed, place the patient's arm and palm corresponding to the arm support plate 31, the first palm fixing component 32, and the second palm fixing component 33 respectively, and then adjust according to the length and size of the patient's palm. When adjusting the palm width, rotate the adjustment knob 323 clockwise or counterclockwise to make the adjustment plates 322 approach or move away from each other. After the adjustment is completed, use the fixing strap 321 to fix the patient's palm. Then, adjust the finger fixing component 34 according to the position of the tenosynovitis on the patient's finger to fix the corresponding finger. When adjusting, first slide the sliding box 341. After reaching the desired position, pull the limit post 333 to limit the sliding box 341. Then slide the support component to the position of the wedge plate 343. Then, according to the need, support the return-shaped rod 23 on the groove 344 at the lower end of the wedge plate 343. The lower the wedge plate 343 is, the higher its angle is, and the higher the wedge plate 343 is, the lower its angle is. If the overall height needs to be adjusted, rotate the control handle 26 to raise or lower it. After use, untie the fixing strap 321 and remove the arm.

[0045] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described.

Claims

1. An external fixation device for treating stenosing tenosynovitis, characterized in that: include: Base plate, support table, clamping fixture; The bottom end of the support platform is fixedly connected to the bottom plate, and the upper end is fixedly connected to the clamping and fixing device; the clamping and fixing device includes: an arm support plate, a first palm fixing component, a second palm fixing component, and a finger fixing component; the arm support plate is rotatably connected to the first palm fixing component, and the first palm fixing component is connected to the second palm fixing component through a distance adjustment screw, and the distance between the second palm fixing component and the first palm fixing component is controlled by turning or rotating the distance adjustment screw; a square groove is opened at the front end of the second palm fixing component, and the finger fixing component is slidably installed on the square groove; The first palm fixing assembly includes a bearing platform, a transmission assembly, and an adjustment plate; a square groove is opened in the middle of the upper end of the bearing platform, and adjustment plates are arranged at both ends of the inner side walls of the square groove, and the adjustment plates are rotatably connected through the transmission assembly; the adjustment plates are controlled to move closer to or farther from each other by controlling the forward or reverse rotation of the transmission assembly; The finger fixing assembly includes a sliding box, a vertical plate, a wedge plate, and a supporting assembly; the sliding box is slidably mounted on the square groove at the front end of the second palm fixing assembly, the vertical plate is fixedly mounted on the upper end of the sliding box, the wedge plate is rotatably mounted on the vertical plate, an extension plate extends from the inner side of the wedge plate, and a linear array of grooves is formed at the lower end of the wedge plate; the supporting assembly is movably mounted on the upper end edge of the supporting platform, and the rotation angle of the finger fixing wedge plate is controlled by controlling different supporting positions of the supporting assembly on the groove, thereby controlling the fixing angle of the patient's finger.

2. An external fixation device for treating stenosing tenosynovitis according to claim 1, characterized in that: The bottom edge of the bottom plate is provided with a suction cup, and the top edge is provided with a plurality of U-shaped fixing clips, and the U-shaped fixing clips are provided with bolts.

3. The external fixation device for treating stenosing tenosynovitis according to claim 1, characterized in that: The support platform is a hollow structure, and a height adjustment mechanism is arranged on the back, and the height adjustment mechanism includes: a screw, a bevel gear, a follower rod, and a control handle; one end of the control handle extends through the side wall of the support platform to the outside, and the other end is fixedly connected to the bevel gear, the lower end of the screw is rotatably connected to the bevel gear, and the upper end is fixedly connected to the upper end of the support platform; the height adjustment is achieved by controlling the forward or reverse rotation of the control handle to control the up and down movement of the screw.

4. The external fixation device for treating stenosing tenosynovitis according to claim 1, characterized in that: The transmission assembly comprises: a supporting and fixing block and a bidirectional screw rod; the supporting and fixing block is fixedly mounted on the brain of the supporting and fixing block, and the bidirectional screw rod passes through the supporting and fixing block and is respectively connected to the adjusting block.

5. The external fixation device for treating stenosing tenosynovitis according to claim 1, characterized in that: The support assembly includes: a circular rod, a sliding block, and a limiting pin; the sliding block is slidably installed on the upper end of the support platform, the circular rod is rotatably installed on one end of the sliding block, and a through hole is opened at the other end of the sliding block. The size of the through hole is adapted to a linear array and a circular array of limiting holes at the upper end of the support platform, the limiting pin is movably installed on the through hole, and a spring is arranged between the top and the sliding block.

6. The external fixation device for treating stenosing tenosynovitis according to claim 1, characterized in that: A plurality of through holes are arranged in a linear array at the lower end of the square groove at the front end of the second palm fixing component, and limit rods are installed on the through holes.

7. An external fixation device for treating stenosing tenosynovitis according to claim 4, characterized in that: An adjustment button is arranged at the outer end of the bidirectional screw, and a cushion layer is arranged at the gripping part of the control handle.

8. The external fixation device for treating stenosing tenosynovitis according to claim 1, characterized in that: The upper ends of the first palm fixing component and the second palm fixing component are arc-shaped structures, which fit the biological anatomical structure of the human hand, and fixing belts are arranged at both ends of the first palm fixing component and the second palm fixing component.

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