External fixation instrument for treating bony hammer finger
By designing external fixation devices and using fixation plates and pins for external fixation treatment of bony mallet finger, the problems of large surgical trauma and infection risk in the treatment of bony mallet finger are solved, and non-invasive and efficient fracture reduction and fixation are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2026-03-27
AI Technical Summary
Existing treatments for bony mallet finger present problems such as high surgical costs, significant trauma, and postoperative infection risks.
An external fixation device was designed, including a fixation plate, a fixation pin, and a traction device. It treats the patient's finger through external fixation, uses the fixation pin to apply pressure and reduce the fracture ends, and provides stable support through a ring fixation strap and a support plate.
It enables effective reduction and fixation of fractures without surgery, avoiding surgical trauma and infection risks, and reducing treatment costs.
Smart Images
Figure CN224039428U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hammer-like finger treatment technical field, concretely is a kind of external fixation apparatus for treating bone hammer-like finger. BACKGROUND
[0002] Bone hammer-like finger is common in clinic, and conservative treatment is not effective because there is no external fixation device for reduction and fixation of fracture, so surgery is currently used. There are several surgical methods, such as Ishikawa method, steel wire passing method and double Kirschner wire elastic compression method. These methods have good effects in treatment, but they all have the following shortcomings: ① high surgical cost ② large surgical trauma ③ risk of skin necrosis and incision infection after surgery. In order to avoid the disadvantages of surgery, we designed an external fixation device that can effectively treat and avoid surgery.
[0003] Therefore, the utility model designs a kind of external fixation apparatus for treating bone hammer-like finger to solve the above problems. SUMMARY
[0004] The utility model discloses a kind of external fixation apparatus for treating bone hammer-like finger, to be able to treat patient by external fixation device under the condition of not surgery.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] An external fixation apparatus for treating bone hammer-like finger, comprising a fixed device aluminum plate, an injured finger and a fixed needle, the fixed device aluminum plate is a long strip and can be wrapped around the injured finger of a patient, the fixed needle can pressurize the fractured end of the patient by penetrating the fixed device aluminum plate, and the fixed device aluminum plate is provided with:
[0007] A mounting hole is provided in the middle of the fixed device aluminum plate, and the hole diameter of the mounting hole is smaller than the size of the last segment of the patient's finger.
[0008] A traction device can be fixed to the last segment of the patient's finger by penetrating the mounting hole, one end of the traction device between the fixed device aluminum plates is a soft rubber, the soft rubber can be fixed and adhered to the end of the patient's finger, and an adjusting assembly is provided at the upper end of the traction device, which can adjust the extension of the last segment of the patient's finger.
[0009] An annular fixing belt is provided with a plurality of raised rubber patches on the inner side.
[0010] Preferably, the adjusting assembly comprises a support plate, which is a long strip rectangular plate, one end of the support plate is threadedly connected with a threaded rod, and one end of the threaded rod is fixedly connected with the end of the traction device outside the fixed device aluminum plate.
[0011] Preferably, the fixing needle is composed of a metal segment and a plastic segment, the diameter of the metal segment is smaller than that of the plastic segment, the metal segment can be inserted into the fixator aluminum plate and abut against the fracture position of the patient's finger, the end of the plastic segment close to the metal segment is provided with an inclined surface, and a plurality of hammer-shaped protrusions are fixedly installed on the inclined surface, the hammer-shaped protrusions can be extruded and embedded on the surface of the aluminum plate, the fixing needle is in a separate structure with the fixator aluminum plate, the fixing needle can be arranged at any position of the fixator aluminum plate, so as to adjust the alignment of the needle tip with the fracture block position, and after alignment, the metal needle is pushed to the deep part to press the fracture block, and after pressing, the metal needle is completely fixed.
[0012] Preferably, the fixator aluminum plate is fixedly installed with filling cotton close to the side of the patient's finger, and the filling cotton is skin-friendly cotton.
[0013] Preferably, the support plate is fixedly installed with a connecting curved plate at the end away from the threaded rod, the connecting curved plate has a certain elasticity and can be attached to the back of the patient's palm, and the connecting curved plate is fixedly connected with a fixing bandage.
[0014] Preferably, the middle positions of the fixing bandage are cross arranged, so that the fixing bandage forms two closed loops, when wearing, the patient's palm passes through the two closed loops in turn, so that the connecting curved plate is located on the side of the patient's palm, and the intersection point of the fixing bandage is located on the back of the patient's hand.
[0015] Preferably, the two sides of the support plate are fixedly installed with side protection plates.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The utility model uses the traction equipment fixed in the distal end of the finger, then the fixator aluminum plate is sleeved on the traction equipment, the fixator aluminum plate is distributed on the two sides of the finger to wrap the finger, in this process, the side of the connecting filling cotton is attached to the surface of the finger, then the annular fixing band is tightened, so that the fixator aluminum plate is fixed on the patient's finger, after fixing, the threaded rod is rotated to pull the traction equipment to straighten or slightly hyperextend the distal segment of the finger, the X-ray film shows the position of the fracture end, the position of the fixing needle is set according to the image, so that the tip end is aligned with the proximal end of the fracture block of the finger, and the metal end of the fixing needle is pushed to the fracture position, and the fracture end is pressed to reset, and after C-arm perspective determines that the fracture reset and fixation are good, the position of the fixing needle is locked. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0019] Figure 1 It is a side view angle structure schematic diagram of the present application.
[0020] Figure 2 It is a whole wearing structure schematic diagram of the present application.
[0021] Figure 3 It is a whole wearing structure schematic diagram of the present application. Figure 2 It is a structure partial schematic diagram of the present application.
[0022] In the drawings, the component list represented by each mark is as follows:
[0023] 1, the fixed aluminum plate; 2, the filling cotton; 3, the traction equipment; 4, the annular fixing belt; 5, the fixed needle; 6, the connecting curved plate; 7, the supporting plate; 701, the side protection plate; 8, the fixed bandage; 9, the threaded rod; 10, the injured finger. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0025] Please refer to Figures 1-3 The present application provides a technical scheme:
[0026] An external fixation device for treating bone mallet finger, comprising a fixed aluminum plate 1, an injured finger 10 and a fixed needle 5, the fixed aluminum plate 1 is a long strip and can be wrapped on both sides of the injured finger 10 of the patient, the fixed needle 5 can pressurize the fracture end of the patient by penetrating through the fixed aluminum plate 1, and the fixed aluminum plate 1 is provided with:
[0027] The mounting hole is arranged at the middle position of the fixed aluminum plate 1, and the hole diameter of the mounting hole is smaller than the size of the distal segment of the patient's finger;
[0028] The traction device 3 can be fixed on the distal segment of the patient's finger through the mounting hole, one end of the traction device 3 between the fixing aluminum plate 1 is a soft rubber, the soft rubber can be fixedly attached to the end of the patient's finger, and the upper end of the traction device 3 is provided with an adjusting assembly, and the adjusting assembly can adjust the stretch degree of the distal segment of the patient's finger.
[0029] The annular fixing belt 4 has elasticity and can be sleeved on the lower end of the fixing aluminum plate 1 wrapped around the patient's finger, and a plurality of protruding rubber patches are arranged on the inner side of the annular fixing belt 4.
[0030] The utility model uses is fixed in the traction device 3 at the distal end of the finger, then the fixing aluminum plate sleeve 1 is connected on the traction device 3, the fixing aluminum plate 1 is distributed on the two sides of the finger and wraps the finger, in this process, one side of the connecting filling cotton 2 is attached to the surface of the finger, then is tightened through the annular fixing belt 4, so as to fix the fixing aluminum plate 1 on the patient's finger, after fixing, rotate the threaded rod 9 and pull the traction device 3 to make the distal segment of the finger straight or slightly hyperextension, the X-ray film shows the position of the fracture end, according to the image, the position of the fixing needle 5 is set, the tip end is aligned with the proximal end of the finger fracture block, and the metal end of the fixing needle is pushed to the fracture position, and the fracture end is pressed to reset, and after C-arm perspective determines that the fracture reset and fixation are good, the position of the fixing needle 5 is locked.
[0031] The adjusting assembly comprises a support plate 7, the support plate 7 is a long strip-shaped rectangular plate, one end of the support plate 7 is connected with a threaded rod 9, and one end of the threaded rod 9 is fixedly connected with the end of the traction device 3 outside the fixing aluminum plate 1. The support plate 7 is arranged below the injured finger of the patient as a support, when adjusting, the threaded rod 9 is rotated to adjust the distance between the traction device 3 and the support plate 7, the closer the traction device 3 is to the support plate 7, the more the finger is attached to the surface of the support plate 7, so that the finger is stretched more.
[0032] The fixing needle 5 is composed of a metal segment and a plastic segment, the diameter of the metal segment is smaller than that of the plastic segment, the metal segment can be inserted into the fixing aluminum plate 1 and abut against the fracture position of the patient's finger, one end of the plastic segment close to the metal segment is provided as an inclined surface, a plurality of hammer-shaped protrusions are fixedly installed on the inclined surface, the hammer-shaped protrusions can be extruded and embedded on the surface of the aluminum plate, the fixing needle 5 and the fixing aluminum plate 1 are in a split structure, the fixing needle 5 can be arranged at any position of the fixing aluminum plate 1, so as to adjust the position of the needle tip to align with the fracture block, after alignment, the metal needle is pushed to the deep part to press the fracture block, and after pressing, the metal needle is completely fixed. The metal segment is introduced into the fixing aluminum plate 1, so that the metal segment abuts against the fracture segment of the patient, after the fracture is reset, the plastic segment close to the fixing aluminum plate 1 is pushed, so that the hammer-shaped protrusions on the plastic segment abut against the fixing aluminum plate 1, so that the hammer-shaped protrusions are embedded on the surface of the aluminum plate, thereby fixing the position of the fixing needle 5.
[0033] The filler cotton 2 is fixedly installed on one side of the fixator aluminum plate 1 close to the patient's fingers, and the filler cotton 2 is skin-friendly cotton.
[0034] The connecting curved plate 6 is fixedly installed on one end of the support plate 7 away from the threaded rod 9, and the connecting curved plate 6 is elastic and can be attached to the back of the patient's palm, and the fixing bandage 8 is fixedly connected to the connecting curved plate 6. The fixing bandage 8 is sleeved on the patient's wrist, and the connecting curved plate 6 is in contact with the end of the patient's palm, so that the support plate 7 is arranged below the injured finger.
[0035] The middle position of the fixing bandage 8 is crossed, so that the fixing bandage 8 forms two closed loops. When wearing, the patient's palm passes through the two closed loops in turn, so that the connecting curved plate 6 is on one side of the patient's palm, and the intersection point of the fixing bandage 8 is on the back of the patient's hand. When wearing, the patient's palm passes through the two closed loops of the fixing bandage 8 in turn, so that the connecting curved plate 6 is arranged in the palm.
[0036] The two sides of the support plate 7 are fixedly installed with side protection plates 701. The side protection plates 701 and the support plate 7 are arranged at the edge of the patient's injured finger, which increases the support force of the patient's finger and prevents the patient's finger from being injured again by external force.
Claims
1. An external fixation device for treating a bone mallet finger, comprising a fixation plate (1), an injured finger (10) and a fixation needle (5), characterized in that: The fixed aluminum plate (1) is long strip-shaped and can be wrapped on both sides of the injured finger (10) of a patient, the fixed needle (5) can press the fractured end of the patient through the fixed aluminum plate (1), the fixed aluminum plate (1) is provided with: The mounting hole is arranged at the middle position of the fixed aluminum plate (1), the hole diameter of the mounting hole is smaller than the size of the distal segment of the patient's finger; The traction device (3) can be fixed on the distal segment of the patient's finger through the mounting hole, one end of the traction device (3) between the fixed aluminum plate (1) is soft glue, the soft glue can be fixedly adhered to the distal end of the patient's finger, the upper end of the traction device (3) is provided with an adjusting assembly, the adjusting assembly can adjust the stretch of the distal segment of the patient's finger; The annular fixing belt (4) has elasticity and can be sleeved on the lower end of the fixed aluminum plate (1) wrapped on the patient's finger, a plurality of protruding rubber pads are arranged on the inner side of the annular fixing belt (4).
2. The external fixation device for treating a bony hammer toe according to claim 1, wherein: The adjusting assembly comprises a support plate (7), the support plate (7) is a long strip-shaped rectangular plate, one end of the support plate (7) is threadedly connected with a threaded rod (9), one end of the threaded rod (9) is fixedly connected with the end of the traction device (3) outside the fixed aluminum plate (1).
3. The external fixation device for treating a bony hammer toe according to claim 2, wherein: The fixed needle (5) is composed of a metal segment and a plastic segment, the diameter of the metal segment is smaller than that of the plastic segment, the metal segment can be inserted into the fixed aluminum plate (1) and abut against the fractured position of the patient's finger, the end of the plastic segment close to the metal segment is provided as an inclined surface, a plurality of hammer-shaped protrusions are fixedly installed on the inclined surface, the hammer-shaped protrusions can be extruded and embedded on the surface of the aluminum plate, the fixed needle (5) is in a separate structure with the fixed aluminum plate (1), the fixed needle (5) can be arranged at any position of the fixed aluminum plate (1) so as to adjust the alignment of the needle tip with the fractured block position, after alignment, the metal needle is pushed to the deep part to press the fractured block, and after pressing, the metal needle is completely fixed.
4. The external fixation device for treating a bony hammer toe according to claim 3, wherein: The fixed aluminum plate (1) is fixedly installed with filling cotton (2) close to the side of the patient's finger, the filling cotton (2) is skin-friendly cotton.
5. The external fixation device for treating a bony hammer toe according to claim 4, wherein: The end of the support plate (7) away from the threaded rod (9) is fixedly installed with a connecting curved plate (6), the connecting curved plate (6) has a certain elasticity and can be attached to the heel of the patient's palm, the connecting curved plate (6) is fixedly connected with a fixed bandage (8).
6. The external fixation device for treating a bony hammer toe according to claim 5, wherein: The middle position of the fixed bandage (8) is crossed, so that the fixed bandage (8) forms two closed loops, when worn, the palm of the patient passes through the two closed loops in turn, so that the connecting curved plate (6) is on one side of the palm of the patient, and the intersection point of the fixed bandage (8) is on the back of the patient's hand.
7. The external fixation device for treating a bony hammer toe according to claim 6, wherein: The both sides of the support plate (7) are fixedly installed with side protection plates (701).