Hand fracture surgery positioner

Abstract

The utility model discloses a hand fracture surgery positioner which comprises a fixing base, a first fixing mechanism, a second fixing mechanism and a third fixing mechanism, the length extending direction of the fixing base is the relative front-back direction, the width extending direction of the fixing base is the relative left-right direction, and the top of the rear side of the fixing base is provided with the first fixing mechanism used for fixing fingers; the first connecting mechanism is connected with the rear end face of the fixed seat, and the first rotating mechanism rotates on the rear end face; the connecting rod mechanism is connected with the first connecting mechanism and rotates forwards and backwards around the first connecting mechanism; the needle feeding mechanism is connected with the connecting rod mechanism in a sliding mode, so that the needle feeding mechanism moves in the relative front-back direction; the hand fracture surgery positioner is more attached to the palm finger portion, positioning needles can be arranged in a multi-angle and parameterized mode, and positioning is more accurate. The utility model provides a hand fracture surgery positioner, belongs to surgical equipment, and is applied to orthopedic surgery, in particular to hand surgery.

Description

Technical Field

[0001] This utility model relates to the field of surgical equipment, and in particular to a surgical locator for hand fractures. Background Technology

[0002] A surgical locator for hand fractures is a tool used to help surgeons accurately locate the bone structures of the hands and fingers. However, existing hand fracture surgical locators are handheld and require manual control during surgery, lacking stability and precise angle fixation. This results in suboptimal placement of the implanted pins post-surgery. Therefore, there is an urgent need to design an auxiliary tool that can perfectly solve the problems of precise angle and structural stability in the treatment of hand and finger fractures requiring pin implantation. Utility Model Content

[0003] The purpose of this utility model is to provide a surgical locator for hand fractures, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] First, this utility model provides a hand fracture surgical locator, including: a fixation base, with the length extension direction of the fixation base as the relative front-back direction and the width extension direction of the fixation base as the relative left-right direction, the top of the fixation base is provided with a first fixation mechanism, the fixation base is provided with a first receiving groove, the first receiving groove is located below the first fixation mechanism, the first receiving groove and the first fixation mechanism form a channel for receiving a finger, the fixation base is provided with a first rotating hole, the first rotating hole passes through the rear part of the fixation base and communicates with the first receiving groove;

[0006] A first connecting mechanism includes a tube body and a first rotating part. The tube body is connected to the first rotating part and coaxially connected to the first rotating hole. The first connecting mechanism rotates around the axis of the first rotating hole.

[0007] A linkage mechanism includes a first link and a second link. The first link has a second rotating part and a third rotating part at its two ends, respectively. The second rotating part is connected to the first rotating part, and the third rotating part is rotatably connected to one end of the second link. The second link rotates around the third rotating part toward the fixed seat, and the first link rotates around the first rotating part toward the tube body. The second link has a first sliding groove and a second sliding groove. The first sliding groove passes through the second link in the vertical direction, and the second sliding groove passes through the second link in the horizontal direction.

[0008] The needle insertion mechanism includes a needle insertion sleeve, a locking shaft disposed on the side wall of the needle insertion sleeve, and a locking ring disposed outside the second connecting rod. The needle insertion sleeve passes through the first sliding groove, the locking shaft overlaps in the second sliding groove, and the locking ring is connected to the locking shaft. The needle insertion sleeve is used to pass through the positioning needle.

[0009] By setting the first fixing mechanism and the first receiving groove on the fixing base to accommodate the patient's fingers, the operation is convenient during positioning needle operation, and the patient's fingers are easily fixed. The linkage mechanism moves on the rear end face of the fixing base, allowing for multi-angle positioning needle insertion or marking of the patient's palm, covering a larger area. This design allows doctors to treat multiple affected areas in a single operation during orthopedic surgery on the palm, without needing to attach the surgical locator to the patient's palm. Moreover, this design allows for more intuitive operation by the doctor, more precise needle insertion angles, and a more stable overall structure.

[0010] Working principle: The tube body is connected to the first rotating hole on the fixed base, allowing the needle insertion mechanism to rotate around the axis of the first rotating hole. When the patient's middle finger is placed on the first receiving groove and fixed by the first fixing mechanism, the needle insertion mechanism can rotate around the circumference of the patient's palm, effectively covering the side of the finger, the side of the wrist, etc., without requiring the patient to rotate their wrist excessively. The first connecting rod can rotate relative to the fixed base, the second connecting rod can rotate relative to the first connecting rod, and the needle insertion mechanism can slide on the second connecting rod, increasing the extension distance of the needle insertion mechanism and extending its coverage from the front of the finger to the forearm. The locking ring is used to lock the needle insertion cannula. When the doctor has adjusted the insertion angle and is ready to insert the needle or make a mark, the locking ring can be rotated to fix the needle insertion cannula for easy operation.

[0011] As an extension of the above solution, a scale is provided on the outer wall of the first rotating part. By providing a scale on the first rotating part, it is convenient to perform parametric positioning marking and positioning pin insertion operations. Generally, a scale is also provided at the end of the tube body, and a certain observation area is provided on the fixed seat. This allows for parametric recording of the rotation angle of the linkage mechanism and parametric insertion of positioning pins.

[0012] As an extension of the above solution, a traction handle is connected to the end of the second link. By setting the traction handle, the doctor can quickly adjust the relative position of the needle insertion mechanism, making the hand fracture surgical locator provided by this solution easier to operate.

[0013] As an extension of the above solution, the outer wall of the traction handle is provided with anti-slip texture. This increases the friction of the traction handle and prevents the doctor from accidentally operating it due to slippage.

[0014] As an extension of the above solution, the first connecting rod includes a first rod and a sleeve. One end of the first rod is provided with a second rotating part, and one end of the sleeve is provided with a third rotating part. The first rod and the sleeve are slidably connected. A scale is provided on the first rod, and a scale is provided on the outer wall of the sleeve.

[0015] This design provides the linkage mechanism with more degrees of freedom and makes it easier to adjust the vertical movement. Additionally, a scale is provided on the first rod to facilitate recording position information and controlling the needle depth.

[0016] As an extension of the above solution, the outer wall of the third rotating part is provided with a scale. This design allows for convenient adjustment of the second connecting rod and recording of corresponding position information.

[0017] As an extension of the above solution, a base plate is also connected below the fixation seat. By connecting the base plate below the fixation seat, the rest of the patient's palm can be placed on the base plate, reducing the patient's discomfort. At the same time, this arrangement is more conducive to hand positioning, allowing the fixation seat to fit the patient's hand more closely.

[0018] As an extension of the above solution, a wrist support is provided on the base plate, which is located between the front side of the fixing seat and the front end face of the base plate. This arrangement can provide support for the wrist, improve the patient's hand comfort, and facilitate positioning.

[0019] As an extension of the above solution, a first groove is provided on the left end face of the base plate, and a second groove is provided on the right end face of the base plate. The first groove and the second groove are respectively connected to straps. Both the first groove and the second groove are located on one side of the wrist support, and the straps are positioned above the wrist support. By providing grooves on both end faces of the base plate, and connecting the grooves to the straps, the wrist can be further secured by passing the straps over the wrist support.

[0020] As an extension of the above solution, the base plate is also provided with locking holes and locking screws. The locking holes penetrate the base plate and are respectively located in the areas where the first groove and the second groove are located. The locking screws pass through the locking holes to fix the straps. This design allows operators to quickly replace and fix the straps when they need to be replaced.

[0021] The hand fracture surgical locator provided by this utility model fits the palm better and can insert positioning needles from multiple angles and with parameterization, resulting in more accurate positioning. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is an overall schematic diagram of the hand fracture surgical locator provided by this utility model;

[0024] Figure 2 This is a partial schematic diagram of the hand fracture surgical locator provided by this utility model;

[0025] Figure 3 This is a partial schematic diagram of the hand fracture surgical locator provided by this utility model;

[0026] Figure 4 This is a partial schematic diagram of the hand fracture surgical locator provided in an embodiment of the present invention;

[0027] Figure 5 This is a partial schematic diagram of the hand fracture surgical locator provided in an embodiment of the present invention.

[0028] In the attached diagram: 100, fixed base; 101, first fixing mechanism; 102, first receiving groove; 103, first rotating hole; 200, first connecting mechanism; 201, tube body; 202, first rotating part; 300, linkage mechanism; 301, first connecting rod; 3011, first rod; 3012, sleeve; 3013, second rotating part; 302, second connecting rod; 3021, first sliding groove; 3022. Second slide groove, 3023, third rotating part, 400, needle insertion mechanism, 401, needle insertion sleeve, 402, locking shaft, 403, Kirschner wire, 404, locking ring, 405, dial, 500, traction handle, 600, base plate, 601, wrist rest, 602, first groove, 603, second groove, 604, locking hole, 605, locking screw, 606, base plate slide groove, 607, wrist rest slider. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0031] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 5 The following are several embodiments of a hand fracture surgical locator according to the present invention.

[0034] like Figures 1 to 3 As shown, in some embodiments, a hand fracture surgical locator includes a fixation base 100, with the length of the fixation base 100 extending in a relatively front-back direction and the width of the fixation base 100 extending in a relatively left-right direction. The top of the fixation base (100) is provided with a first fixing mechanism 101. The fixation base 100 is provided with a first receiving groove 102, which is located below the first fixing mechanism 101. The first receiving groove 102 and the first fixing mechanism 101 enclose a channel for receiving a finger. The fixation base 100 is provided with a first rotating hole 103, which penetrates the rear part of the fixation base 100 and communicates with the first receiving groove 102.

[0035] The first connecting mechanism 200 includes a tube body 201 and a first rotating part 202. The tube body 201 is connected to the first rotating part 202. The tube body 201 is coaxially connected to the first rotating hole 103. The first connecting mechanism 200 rotates around the axis of the first rotating hole 103.

[0036] A linkage mechanism 300 includes a first link 301 and a second link 302. The first link 301 has a second rotating part 3013 and a third rotating part 3023 at its two ends. The second rotating part 3013 is connected to the first rotating part 302. The third rotating part 3023 is rotatably connected to one end of the second link 302. The second link 302 rotates around the third rotating part 3023 toward the fixed base 100. The first link 301 rotates around the first rotating part 202 toward the tube body 201. The second link 302 has a first sliding groove 3021 and a second sliding groove 3022. The first sliding groove 3021 passes through the second link 302 in the vertical direction, and the second sliding groove 3022 passes through the second link 302 in the horizontal direction.

[0037] The needle insertion mechanism 400 includes a needle insertion sleeve 401, a locking shaft 402 disposed on the side wall of the needle insertion sleeve 401, and a locking ring 404 disposed outside the second connecting rod 302. The needle insertion sleeve 401 passes through the first sliding groove 3021, the locking shaft 402 overlaps in the second sliding groove 3022, and the locking ring 404 is connected to the locking shaft 402. The needle insertion sleeve 401 is used to pass through the Kirschner wire 403.

[0038] Sometimes the first fixing mechanism 101 may include an upper cover plate and a locking bolt, the locking bolt connecting the upper cover plate to the fixing seat 100. Sometimes the first fixing mechanism 101 may also be made of Velcro, with the barbed side of the Velcro attached to the fixing seat 100, the rough side of the Velcro connecting with the barbed side of the fixing seat 100 to form a channel that allows fingers to pass through, so as to fix the fingers.

[0039] The front side of the fixation seat 100 is lower than the rear side, and there is a certain slope between the first receiving groove 102 and the front section of the fixation seat 100. This allows the patient's hand to be slightly taut, making it easier to insert positioning needles or make markings.

[0040] By providing the first fixing mechanism 101 and the first receiving groove 102 on the fixing base 100 to accommodate the patient's fingers, the operation is convenient during positioning needle operation, and the patient's palm is easily fixed. The linkage mechanism 300 moves on the rear end face of the fixing base 100, allowing for multi-angle positioning needle insertion or marking of the patient's palm, covering a larger area. This design allows doctors to treat multiple affected areas in a single operation during orthopedic surgery on the palm, without needing to attach the surgical locator to the patient's palm. Furthermore, this design provides doctors with more intuitive operation.

[0041] Working principle: The tube body 201 is connected to the first rotating hole 103 on the fixed base 100, allowing the first connecting mechanism 200 to rotate around the axis of the first rotating hole 103. When the patient's middle finger is placed on the first receiving groove 102 and fixed by the first fixing mechanism 101, the needle insertion mechanism 400 can rotate around the circumference of the patient's palm, effectively covering the side of the finger, the side of the wrist, etc., without requiring the patient to rotate their wrist excessively. The first connecting rod 301 can rotate relative to the fixed base 100, the second connecting rod 302 can rotate relative to the first connecting rod 301, and the needle insertion mechanism 400 can slide on the second connecting rod 302, which increases the extension distance of the needle insertion mechanism 400, covering the area from the front of the finger to the arm. The locking ring 404 is used to lock the needle insertion sleeve 401. A dial 405 can be connected between the locking ring 404 and the locking shaft 402 to display the angle of the needle insertion cannula 401, which facilitates the doctor to parameterize the needle insertion angle or make markings. After the angle of the needle insertion cannula 401 is adjusted, the locking ring 404 can be rotated to fix the needle insertion cannula 401 for easy operation.

[0042] The tube 201 has a scale on the end face near the finger, and the first rotating part 202 has a scale on its outer wall. This allows the surgical locator to be parametrically operated, so that when the doctor injects a positioning needle into the patient's palm, he can clearly use the position information fed back by the scale to inject the positioning needle. The positioning needle is injected more accurately. Conversely, it is also convenient to record relevant information in the medical record during the operation.

[0043] In some embodiments, to facilitate adjustment of the needle insertion angle or repositioning of the hand fracture surgical locator, a traction handle 500 can be connected to the end of the second link 302. By providing the traction handle 500, the surgeon can quickly adjust the relative position of the needle insertion mechanism 400. Furthermore, to prevent slippage, anti-slip textures can be provided on the surface of the traction handle 500.

[0044] In some embodiments, the first connecting rod 301 includes a first rod 3011 and a sleeve 3012, with the first rod 3011 and the sleeve 3012 slidably connected. One end of the first rod 3011 is provided with a second rotating part 3013, and one end of the sleeve 3012 is provided with a third rotating part 3023. A scale is provided on both the first rod 3011 and the sleeve 3012. This arrangement provides the connecting rod mechanism 300 with more degrees of freedom, making it easier to adjust the vertical movement. The scale on the first rod 3011 facilitates recording position information and controlling the needle depth. A locking bolt is provided on the side wall of the sleeve 3012 to secure the sleeve 3012 and the first rod 3011, preventing the positioner from shifting during operation.

[0045] Similarly, the outer wall of the third rotating part 3023 is provided with a scale. This design allows for convenient adjustment of the second connecting rod 302 and recording of the corresponding position information.

[0046] In some embodiments, a base plate 600 is also connected below the fixing seat 100. The rest of the patient's palm can be placed on the base plate 600, reducing the patient's discomfort. At the same time, this arrangement is more conducive to hand positioning, allowing the fixing seat 100 to fit the patient's hand more closely.

[0047] like Figure 4 and Figure 5 As shown, in some embodiments, a wrist support 601 is provided on the base plate, and the wrist support 601 is located between the front side of the fixing seat 100 and the front end face of the base plate 600. This arrangement can provide support for the wrist, improve the patient's hand comfort, and facilitate positioning.

[0048] In some embodiments, a first groove 602 is provided on the left end face of the base plate 600, and a second groove 603 is provided on the right end face of the base plate 600. A strap is connected to both the first groove 602 and the second groove 603. Both the first groove 602 and the second groove 603 are located on one side of the wrist rest 601, and the strap is positioned above the wrist rest 601. By providing grooves on both end faces of the base plate 600, and connecting the strap within the grooves, the strap can be passed over the wrist rest 601, further securing the wrist. The strap can be Velcro, rubber tubing, or cotton cloth, etc., and the connection method can be glued or have plugs at both ends of the strap, with the plugs interfering with the grooves. Other connection methods include bolt fixing.

[0049] In some embodiments, the base plate 600 is further provided with locking holes 604 and locking screws 605. The locking holes 604 penetrate the base plate 600 and are respectively located in the areas where the first groove 602 and the second groove 603 are located. The locking screws 605 pass through the locking holes 604 to fix the straps. This arrangement allows the operator to quickly replace and fix the straps when they need to be replaced.

[0050] In some embodiments, to enable rapid movement of the wrist rest 601, a base plate groove 606 is provided on the base plate 600, and a wrist rest slider 607 is connected below the wrist rest. The base plate groove 606 extends rearward from the front end of the base plate 600 and is centrally located on the base plate 600. This allows the wrist rest 601 to move back and forth relative to the fixed base 100.

[0051] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A surgical locator for hand fractures, characterized in that: include: A fixing base (100) is provided with the length extension direction of the fixing base (100) as the relative front-to-back direction and the width extension direction of the fixing base (100) as the relative left-to-right direction. The top of the fixing base (100) is provided with a first fixing mechanism (101). The fixing base (100) is provided with a first receiving groove (102). The first receiving groove (102) is located below the first fixing mechanism (101). The first receiving groove (102) and the first fixing mechanism (101) enclose a channel for receiving fingers. The fixing base (100) is provided with a first rotating hole (103). The first rotating hole (103) passes through the rear part of the fixing base (100) and communicates with the first receiving groove (102). The first connecting mechanism (200) includes a tube body (201) and a first rotating part (202). The tube body (201) is connected to the first rotating part (202). The tube body (201) is coaxially connected to the first rotating hole (103). The first connecting mechanism (200) rotates around the axis of the first rotating hole (103). A linkage mechanism (300) includes a first link (301) and a second link (302). The first link (301) has a second rotating part (3013) and a third rotating part (3023) at its two ends. The second rotating part (3013) is connected to the first rotating part (202). The third rotating part (3023) is rotatably connected to one end of the second link (302). The second link (302) rotates around the third rotating part (3023) toward the fixed seat (100). The first link (301) rotates around the first rotating part (202) toward the tube body (201). The second link (302) has a first sliding groove (3021) and a second sliding groove (3022). The first sliding groove (3021) passes through the second link (302) in the vertical direction, and the second sliding groove (3022) passes through the second link (302) in the horizontal direction. The needle insertion mechanism (400) includes a needle insertion sleeve (401), a locking shaft (402) disposed on the side wall of the needle insertion sleeve (401), and a locking ring (404) disposed outside the second connecting rod (302). The needle insertion sleeve (401) passes through the first slide groove (3021), the locking shaft (402) overlaps in the second slide groove (3022), and the locking ring (404) is connected to the locking shaft (402). The needle insertion sleeve (401) is used to pass through the Kirschner wire (403).

2. The hand fracture surgical locator according to claim 1, characterized in that: The outer wall of the first rotating part (202) is provided with a scale.

3. The hand fracture surgical locator according to claim 1, characterized in that: The second link (302) is connected to a traction handle (500) at its end.

4. The hand fracture surgical locator according to claim 3, characterized in that: The outer wall of the traction handle (500) is provided with anti-slip texture.

5. The hand fracture surgical locator according to claim 1, characterized in that: The first connecting rod (301) includes a first rod (3011) and a sleeve (3012). One end of the first rod (3011) is provided with a second rotating part (3013), and one end of the sleeve (3012) is provided with a third rotating part (3023). The first rod (3011) and the sleeve (3012) are slidably connected. The first rod (3011) is provided with a scale, and the outer wall of the sleeve (3012) is provided with a scale.

6. The hand fracture surgical locator according to claim 5, characterized in that... The outer wall of the third rotating part (3023) is provided with a scale.

7. The hand fracture surgical locator according to claim 1, characterized in that: A base plate (600) is also connected below the fixing seat (100).

8. The hand fracture surgical locator according to claim 7, characterized in that: The base plate (600) is provided with a wrist rest (601), which is located between the front side of the fixed base (100) and the front end face of the base plate (600).

9. The hand fracture surgical locator according to claim 8, characterized in that: The base plate (600) has a first groove (602) on its left end face and a second groove (603) on its right end face. The first groove (602) and the second groove (603) are respectively connected to straps. The first groove (602) and the second groove (603) are both located on one side of the wrist support (601), and the straps are located above the wrist support (601).

10. The hand fracture surgical locator according to claim 9, characterized in that: The base plate (600) is also provided with locking holes (604) and locking screws (605). The locking holes (604) penetrate the base plate (600) and are respectively located in the areas where the first groove (602) and the second groove (603) are located. The locking screws (605) pass through the locking holes (604) to fix the straps.

Images