D-type short finger extender and method

Abstract

The invention discloses a D-shaped short finger extender and method, the D-shaped short finger extender comprises a base, a first clamping needle assembly and a second clamping needle assembly, one end of the base is provided with a mounting table, the other end of the base is provided with a mounting groove, and a supporting shaft is arranged in the mounting groove in a penetrating mode; the first needle clamping assembly comprises a first base plate and a first top cover, the first base plate is rotatably arranged on the mounting table, a plurality of first clamping grooves are formed in the first base plate, the first top cover is arranged on the first base plate, and a plurality of second clamping grooves are formed in the first top cover; a threading needle can be clamped between one first clamping groove and one second clamping groove which are correspondingly arranged; the second needle clamping assembly comprises a second base plate and a second top cover, the second base plate is movably arranged on the supporting shaft, a plurality of third clamping grooves are formed in the second base plate, the second top cover is arranged on the second base plate, and a plurality of fourth clamping grooves are formed in the second top cover; and a threading needle can be clamped between one third clamping groove and one fourth clamping groove which are correspondingly arranged.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, specifically to a D-type short finger extender and method. Background Technology

[0002] The number of patients with type D short fingers is relatively large, and there are high requirements for the appearance of the fingers. Moving these patients requires tiny instruments and delicate intraoperative operations.

[0003] In existing technologies, doctors typically use assistive orthopedic devices to traction the phalanges or toes that the patient needs to lengthen, continuously stimulating the body's tissues and activating the body's tissue regeneration potential to help the patient lengthen the bones.

[0004] However, the existing straight single-sided brace has a large span, and only one threaded needle can be inserted into the transfer segment, which cannot make the transfer segment move forward stably. In addition, the proximal end needs to be fixed across the joint, which affects the range of motion of the interphalangeal joint. Summary of the Invention

[0005] The purpose of this invention is to provide a D-type short finger lengthener that increases stability while reducing the size of the device, does not fix the interphalangeal joint, and does not affect the range of motion of the joint.

[0006] Therefore, embodiments of the present invention propose a D-type short finger extender.

[0007] According to an embodiment of the present invention, a D-type short finger extender includes a base, a first needle clamping assembly, and a second needle clamping assembly. One end of the base is provided with a mounting platform, and the other end of the base is provided with a mounting groove, through which a support shaft passes. The first needle clamping assembly includes a first base plate and a first top cover. The first base plate is rotatably mounted on the mounting platform and has multiple first slots. The first top cover is mounted on the first base plate and has multiple second slots, with a needle capable of being clamped between a corresponding first slot and a corresponding second slot. The second needle clamping assembly includes a second base plate and a second top cover. The second base plate is movably mounted on the support shaft and has multiple third slots. The second top cover is mounted on the second base plate and has multiple fourth slots, with a needle capable of being clamped between a corresponding third slot and a corresponding fourth slot.

[0008] In some embodiments, a limiting hole is provided between the first chassis and the first top cover, and a pin passes through the limiting hole.

[0009] In some embodiments, two sets of limiting holes are provided, and two pins are provided.

[0010] In some embodiments, the first clamping pin assembly further includes a first mounting bolt, which passes through the first top cover and the first chassis in sequence and is then fixed to the mounting platform.

[0011] In some embodiments, the second pin clamp assembly further includes a second mounting bolt, which passes through the second top cover and is secured to the second chassis.

[0012] In some embodiments, a portion of the plurality of first slots is arranged parallel to the thickness direction of the first chassis, and another portion of the plurality of first slots is arranged intersecting the thickness direction of the first chassis; a portion of the plurality of second slots is arranged parallel to the thickness direction of the first top cover, and another portion of the plurality of second slots is arranged intersecting the thickness direction of the first top cover.

[0013] In some embodiments, the first card slot and the second card slot also have a horizontally downward tilt angle.

[0014] In some embodiments, the clamping diameter between the first card slot and the second card slot is between 1.2mm and 1.5mm, and the clamping diameter between the third card slot and the fourth card slot is between 1.2mm and 1.5mm.

[0015] According to an embodiment of the present invention, a method for extending a D-type short finger, wherein the method is implemented by the aforementioned D-type short finger extender, comprising:

[0016] S10, Examine and assess the condition of the patient's fingers;

[0017] S20, if the patient has flexion and hyperextension deformities of the distal phalanx, the needle clamping hole is stepped, and the second needle clamping component is designed on both sides of the midline to avoid the inability to insert the needle; or

[0018] S30, if the patient's distal phalanx is short, use an oblique needle insertion to reduce the fixation length; or

[0019] S40, if the patient has distal phalanx misalignment, the first base plate can be adjusted according to the angle of phalanx misalignment, inserted perpendicularly to the midline of the phalanx, and after osteotomy, rotated and fixed to correct the deformity; or

[0020] S50, if the patient's distal phalanx is thin, use an oblique needle.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a D-type short finger extender according to an embodiment of the present invention.

[0024] Figure 2 This is another schematic diagram of a D-type short finger extender according to an embodiment of the present invention.

[0025] Figure label:

[0026] D-type short finger extender 100, base 10, mounting platform 11, mounting groove 12, support shaft 13, first clamping pin assembly 20, first chassis 21, first top cover 22, limiting hole 23, pin 24, first mounting bolt 25, second clamping pin assembly 30, second chassis 31, second top cover 32, second mounting bolt 33. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art should understand that the embodiments described below are only for illustrating the present invention and should not be regarded as limiting the scope of the present invention. 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.

[0028] like Figures 1-2 As shown, the D-type short finger extender 100 according to an embodiment of the present invention includes a base 10, a first pin clamp assembly 20, and a second pin clamp assembly 30.

[0029] One end of the base 10 is provided with a mounting platform 11, and the other end of the base 10 is provided with a mounting groove 12, in which a support shaft 13 passes.

[0030] The first needle clamping assembly 20 includes a first base 21 and a first top cover 22. The first base 21 is rotatably mounted on the mounting platform 11 and has a plurality of first slots. The first top cover 22 is mounted on the first base 21 and has a plurality of second slots. A needle can be clamped between a first slot and a second slot.

[0031] The second needle clamping assembly 30 includes a second base 31 and a second top cover 32. The second base 31 is movably mounted on the support shaft 13 and has a plurality of third slots. The second top cover 32 is mounted on the second base 31 and has a plurality of fourth slots. A needle can be clamped between a third slot and a fourth slot.

[0032] It should be noted that the support shaft 13 is similar to a bolt structure, and the support shaft 13 passes through the end face of the base 10 and is installed in the mounting groove 12 of the base 10.

[0033] In some embodiments, such as Figures 1-2 As shown, a limiting hole 23 is provided between the first chassis 21 and the first top cover 22, and a pin 24 passes through the limiting hole 23.

[0034] In some embodiments, such as Figures 1-2 As shown, there are two sets of limiting holes 23 and two pins 24.

[0035] In some embodiments, such as Figures 1-2 As shown, the first clamping pin assembly 20 also includes a first mounting bolt 25, which passes through the first top cover 22 and the first base plate 21 in sequence and is then fixed on the mounting platform 11.

[0036] In some embodiments, such as Figures 1-2 As shown, the second clamping pin assembly 30 also includes a second mounting bolt 33, which passes through the second top cover 32 and is fixed to the second chassis 31.

[0037] In some embodiments, such as Figures 1-2 As shown, a portion of the multiple first slots is arranged parallel to the thickness direction of the first chassis 21, and another portion of the multiple first slots is arranged intersecting with the thickness direction of the first chassis 21; a portion of the multiple second slots is arranged parallel to the thickness direction of the first top cover 22, and another portion of the multiple second slots is arranged intersecting with the thickness direction of the first top cover 22.

[0038] In some embodiments, such as Figures 1-2 As shown, the first and second card slots also have a downward tilt angle.

[0039] In some embodiments, such as Figures 1-2 As shown, the clamping diameter between the first and second slots is between 1.2mm and 1.5mm, and the clamping diameter between the third and fourth slots is between 1.2mm and 1.5mm.

[0040] The inventors measured and statistically analyzed phalangeal bone data based on existing patients with type D short fingers:

[0041] This invention increases stability while reducing the size of the instrument. It does not fix the interphalangeal joints and does not affect the range of motion of the joints, making it more stable during transport and resistant to displacement and rotation. The distal phalanx is inserted obliquely, which does not damage the nail bed and makes the nails more aesthetically pleasing. The first base plate can rotate and can correct ulnar and radial deviation deformities of the phalanges. It is suitable for both left and right hands.

[0042] According to an embodiment of the present invention, a D-type short finger lengthening method is implemented using a D-type short finger lengthening device, comprising:

[0043] S10, Examine and assess the condition of the patient's fingers;

[0044] S20, if the patient has flexion and hyperextension deformities of the distal phalanx, the needle clamping hole is stepped, and the second needle clamping component is designed on both sides of the midline to avoid the inability to insert the needle; or

[0045] S30, if the patient's distal phalanx is short, use an oblique needle insertion to reduce the fixation length; or

[0046] S40, if the patient has distal phalanx misalignment, the first base plate can be adjusted according to the angle of phalanx misalignment, inserted perpendicularly to the midline of the phalanx, and after osteotomy, rotated and fixed to correct the deformity; or

[0047] S50, if the patient's distal phalanx is thin, use an oblique needle.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A D-type short finger extender, characterized in that, include: A base, one end of which is provided with a mounting platform, and the other end of which is provided with a mounting groove, through which a support shaft passes; The first needle clamping assembly includes a first base and a first top cover. The first base is rotatably mounted on the mounting platform and has a plurality of first slots. The first top cover is mounted on the first base and has a plurality of second slots. A needle can be clamped between a first slot and a second slot. The second needle clamping assembly includes a second base and a second top cover. The second base is movably mounted on the support shaft and has a plurality of third slots. The second top cover is mounted on the second base and has a plurality of fourth slots. A needle can be clamped between one of the third slots and one of the fourth slots.

2. The D-type short finger extender according to claim 1, characterized in that, A limiting hole is provided between the first chassis and the first top cover, and a pin is inserted into the limiting hole.

3. The D-type short finger extender according to claim 1, characterized in that, Two sets of limiting holes are provided, and there are two pins.

4. The D-type short finger extender according to claim 1, characterized in that, The first clamping pin assembly also includes a first mounting bolt, which passes through the first top cover and the first chassis in sequence and is then fixed on the mounting platform.

5. The D-type short finger extender according to claim 1, characterized in that, The second clamping pin assembly also includes a second mounting bolt, which passes through the second top cover and is fixed to the second chassis.

6. The D-type short finger extender according to claim 1, characterized in that, A portion of the plurality of first slots is arranged parallel to the thickness direction of the first chassis, and another portion of the plurality of first slots is arranged intersecting the thickness direction of the first chassis. A portion of the multiple second slots is arranged parallel to the thickness direction of the first top cover, while another portion of the multiple second slots is arranged intersecting the thickness direction of the first top cover.

7. The D-type short finger extender according to claim 6, characterized in that, The first card slot and the second card slot also have a horizontal downward tilt angle.

8. The D-type short finger extender according to claim 5, characterized in that, The clamping diameter between the first and second card slots is between 1.2mm and 1.5mm, and the clamping diameter between the third and fourth card slots is between 1.2mm and 1.5mm.

9. A method for extending a D-type short finger, characterized in that, The D-type short finger lengthening method is implemented using a D-type short finger lengthener as described in any one of claims 1-8, comprising: S10, Examine and assess the condition of the patient's fingers; S20, if the patient has flexion and hyperextension deformities of the distal phalanx, the needle clamping hole is stepped, and the second needle clamping component is designed on both sides of the midline to avoid the inability to insert the needle; or S30, if the patient's distal phalanx is short, use an oblique needle insertion to reduce the fixation length; or S40, if the patient has distal phalanx misalignment, the first base plate can be adjusted according to the angle of phalanx misalignment, inserted perpendicularly to the midline of the phalanx, and after osteotomy, rotated and fixed to correct the deformity; or S50, if the patient's distal phalanx is thin, use an oblique needle.

Images