Acetabular anterior rim bone pry for total hip replacement surgery
By designing a trumpet-shaped bone tilt arm and an acetabular anterior edge bone prying with an inclined tip, the problem that existing tools cannot fully expose the acetabular, achieving safety, full exposure and convenience of surgical operation of the acetabular.
Patent Information
- Application Number
- CN202420407826.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-03-04
AI Technical Summary
Existing tools cannot fully expose the acetabular during total hip replacement surgery, and are inconvenient to use and are not safe enough, and there is a risk of damage to the sciatic nerve at the posterior joint.
A bone prying at the anterior edge of the acetabular edge is designed, including the bone tip, the bone tip and the bone tip and the bone tip. The bone tip and the head are inclined, and the arc-slope connection at both ends of the bone tip and the front edge of the acetabular arm is connected to increase the contact area with the anterior edge of the acetabular.
The full and safe exposure of the acetabular is achieved, the labor and uneven force are reduced during the operation, and the safety of the operation and the convenience of operation are improved.
Smart Images
Figure CN222708288U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a acetabulum front edge bone pry used in total hip replacement surgery. Background Art
[0002] In total hip replacement surgery, fully exposing the acetabulum is the basis for the success of the operation. Only when the acetabulum is fully exposed can the surgeon correctly identify the important anatomical structures of the acetabulum, correctly identify the key surgical markers during the operation, and thus complete the operation in a standardized and correct manner. In the process of exposing the acetabulum, retractor traction is currently the most important method. However, although the existing tools such as the "square-head retractor" are wide in the front and conducive to exposure, they cannot be fixed on the bone surface due to the blunt tip, and the traction process is relatively laborious; uneven force may also lead to excessive traction, which may damage the sciatic nerve behind the joint, and safety cannot be effectively guaranteed. Although the "Hoffman retractor" in the existing tools can be inserted into the bone in the front, the front bone arm is relatively narrow, generally 10-15mm, and the purpose of full exposure cannot be achieved. Therefore, a tool that can fully and safely expose the acetabulum and save effort for the surgeon and is convenient and easy to operate is an urgent need for total hip replacement surgery. Utility Model Content
[0003] In view of the problem that the prior art cannot fully expose the acetabulum, the utility model aims to provide an acetabular anterior edge bone pry for total hip replacement surgery which is easy to operate, highly safe and can fully expose the acetabulum.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a acetabulum anterior edge bone pry for total hip replacement surgery, comprising a bone lift tip, a bone lift arm and a bone lift handle which are connected to each other as a whole, characterized in that: the bone lift arm is in a trumpet shape which is wider on the left and narrower on the right, the pointed end of the bone lift tip is tilted upward by 10-20 degrees horizontally, the arc edge at the left end of the bone lift arm is connected to the bone lift handle in a sloped shape, and the arc edge at the right end of the bone lift arm is connected to the bone lift tip in a sloped shape.
[0005] The arc diameter of the bone tilting arm of the utility model is 30-40mm.
[0006] The width of the tip of the bone tip of the utility model is 10-15mm.
[0007] The bone lifting hook of the utility model is in an arc shape, and the width of the hook head of the bone lifting hook is 30-40mm.
[0008] The bone lift handle of the utility model is made of 316 medical stainless steel. Beneficial Effects
[0009] Since the tip of the bone tip is designed to be horizontally inclined upward by 10-20 degrees, it is convenient for the bone tip to be inserted into the bone surface of the front edge of the acetabulum. The shape of the bone tip arm is designed to be wide on the left and narrow on the right. After the arc edges at both ends of the bone tip arm are sloped and connected to the bone tip and the bone tip respectively, the contact area between the bone tip arm and the soft tissue around the front edge of the acetabulum can be increased, and the purpose of fully and safely exposing the acetabulum can be achieved. The bone tip arm described in the utility model is relatively wide, and its arc diameter reaches 30-40mm, which can increase the force of the bone tip arm and make the bone tip not easy to deform when subjected to force. After the bone tip hook is designed to be arc-shaped, the bone tip hook can provide support for the surgeon to hold it and prevent it from slipping out of the hand. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic structural diagram of the acetabulum anterior edge bone pry described in the utility model.
[0011] Figure 2 It is a front view schematic diagram of the acetabulum anterior edge bone pry described in the utility model.
[0012] Figure 3 It is a side view schematic diagram of the acetabulum anterior edge bone pry described in the utility model.
[0013] Figure 4 It is a top view schematic diagram of the acetabulum anterior edge bone pry described in the utility model.
[0014] Figure 5 It is a left side schematic diagram of the acetabulum anterior edge bone pry described in the utility model.
[0015] In the picture, 1-bone tip, 2-bone arm, 3-bone handle, 4-bone hook. DETAILED DESCRIPTION
[0016] The utility model discloses a acetabular anterior edge bone pry for total hip replacement surgery, comprising a bone tip 1, a bone arm 2 and a bone handle 3 connected to each other, wherein the bone arm 2 is in a trumpet shape with a wide left side and a narrow right side, and the bone handle 3 is made of 316 medical stainless steel. The arc diameter of the bone arm 2 is 35 mm, the hook head width of the bone hook 4 is 32 mm, the arc edge of the left end of the bone arm 2 is connected to the bone handle 3 in a sloped shape, the arc edge of the right end of the bone arm 2 is connected to the bone tip 1 in a sloped shape, and the tip of the bone tip 1 is inclined upward at 15 degrees horizontally. During total hip replacement surgery, when the acetabulum needs to be exposed after the hip joint capsule is cut open and the femoral head is removed, the surgeon holds the bone lift handle 3 described in the utility model, inserts the bone lift arm 2 into the hip joint, and inserts the bone lift tip 1 into the bone surface of the front edge of the acetabulum. The surgeon can hold the bone lift handle 3 and apply appropriate force to press down. The pointed end of the bone lift tip 1 can safely and stably contact the bone surface of the front edge. The trumpet-shaped bone lift arm 2, which is wider on the left and narrower on the right, can pull the muscle and soft tissue of the front edge of the acetabulum forward to fully, safely and labor-savingly expose the anterior wall of the acetabulum. The arc-shaped bone lift hook 4 can prevent the hand from slipping backwards.
Claims
1. A acetabular anterior edge bone pry for total hip replacement surgery, comprising a bone lift tip (1), a bone lift arm (2), a bone lift handle (3) and a bone lift hook (4) which are connected to each other as one body, characterized in that: The bone lifting arm (2) is in the shape of a trumpet that is wider on the left and narrower on the right. The tip of the bone lifting tip (1) is tilted upward at 10-20 degrees from the horizontal. The arc edge at the left end of the bone lifting arm (2) is connected to the bone lifting handle (3) in a sloped shape. The arc edge at the right end of the bone lifting arm (2) is connected to the bone lifting tip (1) in a sloped shape.
2. The acetabular anterior edge bone pry for total hip replacement surgery according to claim 1, characterized in that: The arc diameter of the bone lift arm (2) is 30-40 mm.
3. The acetabular anterior edge bone pry for total hip replacement surgery according to claim 1, characterized in that: The width of the tip of the bone tip (1) is 10-15 mm.
4. The acetabular anterior edge bone pry for total hip replacement surgery according to claim 1, characterized in that: The bone hook (4) is in an arc shape, and the width of the hook head of the bone hook (4) is 30-40 mm.
5. The acetabular anterior edge bone pry for total hip replacement surgery according to claim 1, characterized in that: The bone lift handle (3) is made of 316 medical stainless steel.