一种用于肩袖手术的骨髓激发器
By designing a bone marrow stimulator tool, the problems of insufficient ease of operation and precision in the surgery for second-degree rotator cuff injury were solved, improving the healing rate after rotator cuff repair and achieving a highly efficient treatment effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MEDICAL CENT LIHUILI HOSPITACL
- Filing Date
- 2025-03-14
- Publication Date
- 2026-07-17
AI Technical Summary
Current technology lacks specialized microfracture surgical tools for second-degree rotator cuff injuries, resulting in insufficient ease and precision of operation, as well as inadequate protection of residual rotator cuff tissue, affecting the healing rate and re-tear rate after rotator cuff repair.
Design a bone marrow stimulator including a minimally invasive needle and a tapping handle. The minimally invasive needle has a puncture depth mark and is used in conjunction with the tapping handle to perform a drilling operation to ensure bone marrow exudation. The tool has an overall "T" shaped structure with anti-slip texture and limiting protrusions, and is equipped with a silicone cushioning sleeve to improve safety. The needle tip has a ridged edge and threaded connection design to improve puncture efficiency and safety.
It improved the healing rate after rotator cuff repair surgery, reduced the re-tear rate, improved the postoperative quality of life of patients, and enhanced the convenience and precision of the operation.
Smart Images
Figure CN224505532U_ABST
Abstract
Claims
1. A bone marrow stimulator for rotator cuff surgery, characterized by: The device includes a minimally invasive needle (100) and a tapping handle (200). The minimally invasive needle (100) has a needle handle (101) and a needle tip (102). One end of the needle handle (101) away from the needle tip (102) is detachably fixed to the tapping handle (200). The needle tip (102) is provided with a plurality of puncture depth marks (300), which are equally spaced along the axial direction of the minimally invasive needle (100).
2. A bone marrow stimulator for rotator cuff surgery according to claim 1 wherein: The needle handle (101) is vertically fixed to the middle of the striking handle (200), and the bone marrow stimulator has a "T" shaped structure in the fixed state. The striking handle (200) has a protruding striking part (201) in the middle of the side opposite to the minimally invasive needle (100).
3. A bone marrow stimulator for rotator cuff surgery according to claim 2, wherein: The side of the striking handle (200) near the striking part (201) is provided with anti-slip texture (202), and the side of the striking handle (200) away from the striking part (201) is provided with multiple sets of limiting protrusions (203). The gap between each set of limiting protrusions (203) constitutes a finger limiting grip area.
4. A bone marrow stimulator for rotator cuff surgery according to claim 2, characterized in that: It also includes a silicone cushioning sleeve (400), which includes a "C" shaped retainer (401), a cylindrical sleeve (402), and a side support block (403) for connecting the "C" shaped retainer (401) and the cylindrical sleeve (402). The "C" shaped retainer (401) and the cylindrical sleeve (402) are coaxial. The "C" shaped retainer (401) is used to clamp around the periphery of the striking part (201), and the cylindrical sleeve (402) is used to wrap around the end of the needle handle (101) near the striking handle (200).
5. A bone marrow stimulator for rotator cuff surgery according to claim 1, wherein: The needle tip (102) is provided with multiple ridges (103) at equal intervals in the circumference. The ridges (103) extend outward away from the axis of the needle tip (102) and are crescent-shaped with narrow ends and a wide middle.
6. A bone marrow stimulator for rotator cuff surgery according to claim 5 wherein: A straight groove (104) is provided on the outer wall of the needle tip (102) between two adjacent blades (103), and the straight groove (104) extends along the axial direction of the needle tip (102).
7. A bone marrow stimulator for rotator cuff surgery according to claim 1, wherein: The front end of the needle shank (101) has an internal threaded groove (105), and the tail end of the needle tip (102) has an external thread (106) adapted to be screwed into the internal threaded groove (105). The needle tip (102) is detachably threaded and fixed to the front end of the needle shank (101). An observation slot (107) is provided on the side of the needle shank (101) near the front end port. The observation slot (107) penetrates radially into the internal threaded groove (105) along the needle shank (101).
8. A bone marrow stimulator for rotator cuff surgery according to claim 1, characterized in that: The puncture depth marker (300) is a ring-shaped laser marker.
9. A bone marrow stimulator for rotator cuff surgery according to claim 1, wherein: The minimally invasive needle (100) is 20-30cm long and 3-4mm in diameter.
10. A bone marrow stimulator for rotator cuff surgery according to claim 1, wherein: Both the minimally invasive needle (100) and the striking handle (200) are made of stainless steel.