3D printing reduction guide plate for wrist joint reduction

Abstract

The utility model relates to the technical field of 3D printing reduction guide plates for wrist joint reduction, and discloses a 3D printing reduction guide plate for wrist joint reduction, which comprises a splicing component. The osteotomy guide plate assembly is reasonable in structure, and the osteotomy guide plate assembly and the wrist joint reduction guide plate assembly are matched with each other, so that the palm and the arm of a patient are fixed to the surfaces of the limb fixing assemblies at the two ends, a bandage is tensioned, and then a fixing bolt is rotated to inwards press the bandage for fixation; after the skin on the surface of the wrist joint of the patient is cut open, the universal rotating arm assembly on the side of the osteotomy guide plate assembly is pulled down, the wrist joint is pulled down and pressed downwards to the position needing osteotomy, and then osteotomy can be conducted from an osteotomy groove, and after osteotomy, a rotating arm is lifted to be put back; and then the universal rotating arm assembly with the other end connected with the wrist joint reduction guide plate assembly is moved towards the wrist joint and pressed downwards into the interior, and then the surgical steel needle is inserted into the cut bone through the insertion holes in the two sides in an X-shaped cross mode to be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printed reduction guide plates for wrist joint reduction, in particular to a 3D printed reduction guide plate for wrist joint reduction. Background Art

[0002] Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. Some terminal diseases of the wrist joint, such as rheumatism, rheumatoid arthritis, traumatic arthritis, osteoarthritis, etc., progress to the late stage and have obvious pain in the joints, and cannot bear weight, which has a great impact on the patients' lives. Wrist replacement surgery refers to the surgical removal of the diseased wrist joint, including the removal of the proximal row of carpal bones, and the implantation of a prosthesis into the original wrist joint to replace the function of the wrist joint, in order to improve the patient's pain symptoms and deformity. It can better relieve the patient's symptoms and improve the quality of life.

[0003] A wrist osteotomy guide plate disclosed in the Chinese utility model patent application publication specification CN218870392U has fixing holes on both sides of the guide groove designed for intraoperative fixation, making the osteotomy surgery more stable; and the protruding edge of the guide groove is designed to increase the contact area between the osteotomy blade surface and the blade groove, but the structure is simple, the use effect is simple, and there is a lack of connection and coordination with other devices required for the surgery. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies of the existing technology, the utility model provides a 3D printed reduction guide for wrist joint reduction, which solves the problems of single structure, single use effect, and lack of connection and coordination with other devices required for surgery.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a 3D printed reduction guide for wrist joint reduction, comprising a splicing assembly, wherein the left and right ends of the splicing assembly are respectively provided with limb fixing assemblies, and one side surface of all the limb fixing assemblies is respectively connected to a universal rotating arm assembly at one end edge, one end of one of the universal rotating arm assemblies is connected to a wrist joint reduction guide assembly, and one end of the other universal rotating arm assembly is connected to an osteotomy guide assembly, the osteotomy guide assembly comprises an osteotomy guide, and the center of the top surface of the osteotomy guide is respectively provided with osteotomy grooves on the left and right sides, and the top surface of the osteotomy guide is respectively provided with osteotomy grooves on the left and right sides. Insertion tubes B and C are respectively provided at the edges. The wrist joint reduction guide assembly includes a fixed plate. Insertion tubes A are respectively provided at the left and right edges of the top surface of the fixed plate. The center of the top surface of the fixed plate is respectively connected to the left and right sides with an arc guide plate A and an arc guide plate B. Insertion holes C are respectively opened on the top surfaces of the two arc guide plates A and arc guide plates B. One end of the arc guide plate A is connected to a double-headed insertion tube A. Insertion holes A are respectively opened at the left and right sides of the inner center of the double-headed insertion tube A. One end of the arc guide plate B is connected to a double-headed insertion tube B. Insertion holes B are respectively opened at the left and right sides of the inner center of the double-headed insertion tube B.

[0008] Optionally, the limb fixation assembly includes a semicircular support plate, a tray is connected to one side surface of the semicircular support plate near the bottom edge, the inner surface of the semicircular support plate is covered with a semicircular sponge pad, and the top surface of the semicircular support plate is arranged with several straps passing through it.

[0009] Optionally, a fixing ring A is connected to the left edge of the top surface of the semicircular support plate, and a U-shaped connecting plate is connected to the right edge of the top surface of the semicircular support plate. A connecting hole A is respectively opened at the left and right ends in the center of one side surface of all the U-shaped connecting plates, and fixing bolts are respectively connected to the left and right edges of one side surface of the semicircular support plate.

[0010] Optionally, the splicing assembly includes a splicing plate, and connection holes B are respectively opened at the left and right end edges of the splicing plate, and the left and right ends of the splicing plate are respectively connected to a double-headed connecting plate A and a double-headed connecting plate B.

[0011] Optionally, the left and right ends of the double-headed connecting plate A are respectively provided with a plurality of splicing interfaces A in an arranged form, and the left and right ends of the double-headed connecting plate B are respectively provided with a plurality of splicing interfaces B in an arranged form.

[0012] Optionally, the universal rotating arm assembly includes a fixing ring B, the top of the fixing ring B is connected to a rotating rod, the top of the rotating rod is connected to a rotating shaft, and one end of the rotating shaft is connected to the telescopic rod A.

[0013] Optionally, one end of the telescopic rod A is connected to a universal ball, and the bottom of the universal ball is connected to the telescopic rod B.

[0014] In summary, the technical effects and advantages of the utility model are:

[0015] 1. The utility model has a reasonable structure. The cooperation between the osteotomy guide assembly and the wrist joint reduction guide assembly is to first fix the patient's palm and arm on the surface of the limb fixation assembly at both ends, tighten the straps, and then turn the fixing bolts inward to selectively press the straps for fixation. Then, after the skin on the surface of the patient's wrist joint is incised, the universal rotating arm assembly on that side of the osteotomy guide assembly is pulled to the wrist joint and pressed down to the place where osteotomy is required. The osteotomy groove can be used for osteotomy. After osteotomy, the rotating arm is lifted to return it, and then the universal rotating arm assembly connected to the wrist joint reduction guide assembly at the other end is moved toward the wrist joint and pressed down to the inside. Then, the surgical steel needle is inserted into the cut bone through the through-holes on both sides in an X-shaped cross to fix it.

[0016] 2. In the present invention, there are two limb fixing components, which are connected by splicing components. The main splicing structure of the splicing component is a splicing plate and a double-headed connecting plate, which can be connected by bolts or other similar connecting parts. The advantage of the splicing component is that the splicing length and rotation angle can be arbitrarily adjusted. The two straps arranged on the top of the semicircular support plate in the limb fixing component structure are of through-type. The fixing head is passed through from the bottom of the surface of one side. Pulling one end can press the strap downward, and finally turning the fixing bolt inward to press the strap to fix it.

[0017] 3. In the present invention, by connecting the rotating rod, rotating shaft, telescopic rod A, telescopic rod B and the universal ball structure in the universal rotating arm assembly structure, the entire structure can be arbitrarily rotated up and down, left and right, and extended and retracted to adapt to various stretching angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the limb fixation component structure;

[0020] Figure 3 It is a schematic diagram of the splicing component structure;

[0021] Figure 4 It is a schematic diagram of the structure of the universal rotating arm assembly;

[0022] Figure 5 This is a schematic diagram of the wrist joint reduction guide assembly structure;

[0023] Figure 6Schematic diagram of the osteotomy guide assembly structure.

[0024] In the figure: 1. Limb fixation assembly; 101. Semicircular support plate; 102. Semicircular sponge pad; 103. U-shaped connecting plate; 104. Connecting hole A; 105. Strap; 106. Fixing bolt; 107. Fixing ring A; 108. Tray; 2. Splicing assembly; 201. Splicing plate; 202. Connecting hole B; 203. Double-headed connecting plate A; 204. Splicing interface A; 205. Double-headed connecting plate B; 206. Splicing interface B; 3. Universal rotating arm assembly; 301. Fixing ring B; 302. Rotating rod; 303. Rotating shaft; 304. Telescopic rod A; 305. Universal ball transfer; 306. Telescopic rod B; 4. Wrist reduction guide assembly; 401. Fixing plate; 402. Insertion tube A; 403. Curved guide plate A; 404. Double-ended insertion tube A; 405. Insertion hole A; 406. Curved guide plate B; 407. Double-ended insertion tube B; 408. Insertion hole B; 409. Insertion hole C; 5. Osteotomy guide assembly; 501. Osteotomy guide plate; 502. Osteotomy groove; 503. Insertion tube B; 504. Insertion tube C. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example: Reference Figure 1-Figure 4The 3D printed reduction guide for wrist joint reduction shown in the figure includes a splicing component 2, and the left and right ends of the splicing component 2 are respectively provided with a limb fixation component 1, and one side surface of all the limb fixation components 1 is connected to a universal rotating arm component 3 at one end edge, one end of one universal rotating arm component 3 is connected to a wrist joint reduction guide component 4, and one end of the other universal rotating arm component 3 is connected to an osteotomy guide component 5, and the limb fixation component 1 includes a semicircular support plate 101, and a tray 108 is connected to the bottom edge of one side surface of the semicircular support plate 101, and the inner surface of the semicircular support plate 101 is connected to the bottom edge. The surface is covered with a semicircular sponge pad 102, and the top surface of the semicircular support plate 101 is arranged with several straps 105. The top surface of the semicircular support plate 101 is connected to a fixing ring A107 at the left edge of each end, and the top surface of the semicircular support plate 101 is connected to a U-shaped connecting plate 103 at the right edge of each end. A connecting hole A104 is opened at the center of one side surface of all U-shaped connecting plates 103, and a fixing bolt 106 is connected to the left edge of each end. The splicing assembly 2 includes a splicing plate 201, and the splicing assembly 2 includes a splicing plate 201. The left and right ends of the connecting plate 201 are respectively provided with connecting holes B202, and the left and right ends of the splicing plate 201 are respectively connected to the double-headed connecting plate A203 and the double-headed connecting plate B205. The left and right ends of the double-headed connecting plate A203 are respectively arranged with a number of splicing interfaces A204, and the left and right ends of the double-headed connecting plate B205 are respectively arranged with a number of splicing interfaces B206. The main splicing structure of the splicing assembly 2 is the splicing plate 201 and the double-headed connecting plate, which can be connected by bolts or other similar connecting parts. The advantage of the splicing assembly is that the length and rotation angle can be arbitrarily adjusted. The universal rotating arm assembly 3 includes a fixed ring B301, the top of the fixed ring B301 is connected to a rotating rod 302, the top of the rotating rod 302 is connected to a rotating shaft 303, one end of the rotating shaft 303 is connected to a telescopic rod A304, one end of the telescopic rod A304 is connected to a universal ball 305, and the bottom of the universal ball 305 is connected to a telescopic rod B306. Through the connection between the rotating rod 302, rotating shaft 303, telescopic rod A304, telescopic rod B306 and universal ball 305 structures within the structure of the universal rotating arm assembly 3, the entire structure can be rotated up and down, left and right, and extended and retracted to adapt to various stretching angles.

[0027] like Figure 5 and Figure 6As shown, in this embodiment, the osteotomy guide assembly 5 includes a osteotomy guide plate 501, and a osteotomy groove 502 is respectively opened at the center of the top surface of the osteotomy guide plate 501 on the left and right sides, and an insertion tube B503 and an insertion tube C504 are respectively provided at the left and right edges of the top surface of the osteotomy guide plate 501. The wrist joint reduction guide plate assembly 4 includes a fixed plate 401, and an insertion tube A402 is respectively provided at the left and right edges of the top surface of the fixed plate 401. The center of the top surface of the fixed plate 401 is connected to an arc guide plate A403 and an arc guide plate B406 on the left and right sides respectively, and the top surfaces of the two arc guide plates A403 and the arc guide plate B406 are respectively opened with an insertion hole C409, one end of the arc guide plate A403 is connected to a double-headed insertion tube A404, and the inner center of the double-headed insertion tube A404 is respectively opened with an insertion hole A405 on the left and right sides. One end of 6 is connected to a double-ended insertion tube B407, and the inner center of the double-ended insertion tube B407 is respectively provided with insertion holes B408 on the left and right sides. The cooperation between the osteotomy guide assembly 5 and the wrist joint reduction guide assembly 4 is to first fix the patient's palm and arm on the surface of the limb fixation assembly 1 at both ends, tighten the strap 105, and then rotate the fixing bolt 106 to selectively press the strap 105 inward to fix it. Then, after the skin on the surface of the patient's wrist joint is incised, the universal rotating arm assembly 3 on that side of the osteotomy guide assembly 5 is pulled to the wrist joint and pressed down to the place where osteotomy is required. The osteotomy groove 502 can be used for osteotomy. After osteotomy, the rotating arm is lifted to return it, and then the universal rotating arm assembly 3 connected to the wrist joint reduction guide assembly 4 at the other end is moved to the wrist joint and pressed down to the inside, and then the surgical steel needle is inserted into the cut bone through the insertion holes on both sides through an X-shaped cross to fix it.

[0028] This utility works as follows:

[0029] First, the coordination between the osteotomy guide assembly 5 and the wrist joint reduction guide assembly 4 is to first fix the patient's palm and arm to the surface of the limb fixation assembly 1 at both ends, tighten the bandage 105, and then turn the fixing bolt 106 to press the bandage 105 inward to fix it. Then, after the skin on the surface of the patient's wrist joint is incised, the universal rotating arm assembly 3 on the side of the osteotomy guide assembly 5 is pulled to the wrist joint and pressed down to the place where osteotomy is required. The osteotomy groove 502 can be used for osteotomy. After osteotomy, the rotating arm is lifted to return it, and then the universal rotating arm assembly 3 connected to the wrist joint reduction guide assembly 4 at the other end is moved to the wrist joint and pressed down to the inside. Then, the surgical steel needle is inserted into the cut bone through the through-holes on both sides through the X-shaped cross to fix it. Then, there are two limb fixation assemblies, and they are spliced ​​between them. The limb fixing component 1 is connected by connecting the components 2. The main splicing structure of the splicing component 2 is the splicing plate 201 and the double-headed connecting plate, which can be connected by bolts or other similar connecting parts. The advantage of the splicing component is that the length and rotation angle can be arbitrarily adjusted. The two straps 105 set on the top of the semicircular support plate 101 in the structure of the limb fixing component 1 are through-type. The fixing head is passed through the bottom of the surface of one side. Pulling one end can press the strap downward, and finally, turn the fixing bolt 106 inward to press the strap 105 to fix it. Finally, through the connection between the rotating rod 302, the rotating shaft 303, the telescopic rod A304, the telescopic rod B306 and the universal ball 305 structure in the universal rotating arm component 3 structure, the overall structure can be arbitrarily rotated up and down, left and right and the length can be extended to adapt to various angles of stretching.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A 3D printed repositioning guide for wrist joint repositioning, comprising a splicing component (2), characterized in that: The left and right ends of the splicing assembly (2) are respectively provided with limb fixing assemblies (1), and one side surface of all the limb fixing assemblies (1) is respectively connected to a universal rotating arm assembly (3) at one end edge, one end of one of the universal rotating arm assemblies (3) is connected to a wrist joint reduction guide assembly (4), and one end of another universal rotating arm assembly (3) is connected to an osteotomy guide assembly (5), and the osteotomy guide assembly (5) comprises an osteotomy guide plate (501), and an osteotomy groove (502) is respectively provided at the center of the top surface of the osteotomy guide plate (501) at the left and right sides, and an insertion tube B (503) and an insertion tube C (504) are respectively provided at the left and right edges of the top surface of the osteotomy guide plate (501); The wrist joint reduction guide plate assembly (4) comprises a fixing plate (401), wherein the top surface of the fixing plate (401) is provided with insertion tubes A (402) at the left and right edges, respectively, and the center of the top surface of the fixing plate (401) is connected with an arc guide plate A (403) and an arc guide plate B (406) at the left and right sides, respectively, and the top surfaces of the two arc guide plates A (403) and the arc guide plate B (406) are respectively provided with insertion holes C (409), one end of the arc guide plate A (403) is connected with a double-headed insertion tube A (404), and the inner center of the double-headed insertion tube A (404) is respectively provided with insertion holes A (405) at the left and right sides, and one end of the arc guide plate B (406) is connected with a double-headed insertion tube B (407), and the inner center of the double-headed insertion tube B (407) is respectively provided with insertion holes B (408) at the left and right sides.

2. A 3D printed reduction guide for wrist joint reduction according to claim 1, characterized in that: The limb fixing assembly (1) comprises a semicircular support plate (101), a tray (108) is connected to one side surface of the semicircular support plate (101) near the bottom edge, the inner surface of the semicircular support plate (101) is covered with a semicircular sponge pad (102), and a plurality of straps (105) are arranged and penetrated through the top surface of the semicircular support plate (101).

3. A 3D printed reduction guide for wrist joint reduction according to claim 2, characterized in that: The top surface of the semicircular support plate (101) is connected to a fixing ring A (107) at the left edge of both ends, and the top surface of the semicircular support plate (101) is connected to a U-shaped connecting plate (103) at the right edge of both ends. A connecting hole A (104) is provided at the center of one side surface of all the U-shaped connecting plates (103) at the left and right ends, and a fixing bolt (106) is connected to one side surface of the semicircular support plate (101) at the left and right edges.

4. A 3D printed reduction guide for wrist joint reduction according to claim 1, characterized in that: The splicing assembly (2) comprises a splicing plate (201), the left and right edges of the splicing plate (201) are respectively provided with connection holes B (202), and the left and right ends of the splicing plate (201) are respectively connected to a double-headed connecting plate A (203) and a double-headed connecting plate B (205).

5. A 3D printed reduction guide for wrist joint reduction according to claim 4, characterized in that: The left and right ends of the double-headed connecting plate A (203) are respectively provided with a plurality of joint openings A (204) in an arranged manner, and the left and right ends of the double-headed connecting plate B (205) are respectively provided with a plurality of joint openings B (206) in an arranged manner.

6. A 3D printed reduction guide for wrist joint reduction according to claim 1, characterized in that: The universal rotating arm assembly (3) comprises a fixing ring B (301), the top of the fixing ring B (301) is connected to a rotating rod (302), the top of the rotating rod (302) is connected to a rotating shaft (303), and one end of the rotating shaft (303) is connected to a telescopic rod A (304).

7. A 3D printed reduction guide for wrist joint reduction according to claim 6, characterized in that: One end of the telescopic rod A (304) is connected to a universal ball (305), and the bottom of the universal ball (305) is connected to a telescopic rod B (306).

Images