Adjustable arched elastic automatic drag hook
By designing an adjustable bow-shaped elastic automatic retractor, and utilizing the elasticity and structure of different spring plates, the angle of the retractor and the expansion of the incision are automatically adjusted, solving the problems of surgical field exposure and labor costs, and achieving the effect of automatic incision traction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-04
- Publication Date
- 2026-04-07
AI Technical Summary
In medical surgery, especially when there is a lack of assistants, effectively exposing the surgical field of vision and saving manpower costs becomes a challenge.
An adjustable bow-shaped elastic automatic retractor was designed. By using the different elasticity and length designs of the first and second spring plates and the structure of the fixed shaft and connecting plate, the incision can be automatically pulled, the angle between the retractor and the incision can be adjusted, and the tension of the spring plates can be used to automatically expand the incision and expose the surgical field.
It enables automatic adjustment of the retractor angle and expansion of the incision without the need for additional medical personnel, effectively exposing the surgical field and saving labor costs.
Smart Images
Figure CN224085353U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field especially, relates to a kind of adjustable arc spring automatic drag hook. BACKGROUND
[0002] In the process of medical operation, medical staff needs to use drag hook to pull incision outward, to expose operation visual field (such as the drawing Figure 3 ), facilitate doctor to carry out operation.
[0003] But busy clinical work, especially in large hospital or outpatient operation, there is often not enough medical staff, in the absence of assistant, how to clearly expose operation visual field becomes a problem that perplexes the smooth operation of surgery;And the human cost problem of medical assistant is also considered, while operation, department also needs to consider how to save human cost.
[0004] Therefore, it is necessary to provide a new adjustable arc spring automatic drag hook to solve the above technical problems. UTILITY MODEL CONTENT
[0005] The utility model solves the technical problem to provide a kind of automatic to incision and be pulled, need not increase other medical staff to carry out the adjustable arc spring automatic drag hook of auxiliary.
[0006] To solve the above technical problems, the adjustable arc spring automatic drag hook provided by the utility model includes: first spring plate and second spring plate, one end of the first spring plate and the second spring plate is installed fixed shaft, the other end of the first spring plate is also installed the fixed shaft;The side wall of the first spring plate and the second spring plate is slidably connected with fixed buckle;The side wall of the fixed shaft is installed with connecting plate, and the surface of the connecting plate is engaged with the first drag hook used to pull incision.
[0007] Preferably, the elasticity of the first spring plate is less than the elasticity of the second spring plate, and the length of the second spring plate is less than the length of the first spring plate.
[0008] Preferably, both ends of the first spring plate and one end of the second spring plate are provided with through holes, and the fixed shaft penetrates the through holes.
[0009] Preferably, the diameter of both ends of the fixed shaft is large, the diameter of the middle of the fixed shaft is small, and the maximum diameter of the fixed shaft is greater than the diameter of the through hole, and the minimum diameter of the fixed shaft is less than the diameter of the through hole.
[0010] Preferably, a plurality of clamping grooves are equidistantly arranged on the surface of the connecting plate, and the first drag hook is clamped in the clamping grooves.
[0011] Preferably, the fixed shaft is hollow inside, and the fixed shaft has multiple locking blocks with arc-shaped sidewalls inside; the fixed shaft has a sliding connecting strip inside, and a hook is installed at one end of the connecting strip; the surface of the connecting strip has multiple protrusions, and the protrusions engage with the locking blocks.
[0012] Compared with related technologies, the adjustable bow-shaped elastic automatic pull hook provided by this utility model has the following advantages:
[0013] Beneficial effects:
[0014] This utility model provides an adjustable bow-shaped elastic automatic pull hook. When it is necessary to pull the incision, the first spring plate is bent, one end of the first pull hook is engaged with the connecting plate, and the other end of the first pull hook hooks the incision. The fixed shaft is rotated inside the through hole, changing the angle of the fixed shaft. The fixed shaft drives the first pull hook to rotate, thereby adjusting the angle between the first pull hook and the incision. The first spring plate is released. Due to the tension of the bent first spring plate, the first spring plate expands outward, driving the first pull hook to move outward, so that the first pull hook hooks the patient's surgical incision. The fixing buckle slides on the side wall of the first spring plate and the second spring plate. When the fixing buckle moves, the first spring plate and the second spring plate gradually move closer, and the second spring plate gradually bends. The elasticity of the second spring plate is greater than that of the first spring plate. The tension generated by the bending of the second spring plate is greater than that generated by the bending of the first spring plate, so that the second spring plate pulls the first pull hook outward, making the first pull hook widen the incision and expose the surgical field. It does not require medical staff to assist with the pull hook and saves the cost of assistants, which has important practical value. Attached Figure Description
[0015] Figure 1 A schematic diagram of the structure of the first embodiment of the adjustable bow-shaped elastic automatic pull hook provided by this utility model;
[0016] Figure 2 Schematic diagram of adjustable bow-shaped elastic automatic pull hook for pulling the incision;
[0017] Figure 3 A schematic diagram of the existing manual retractor traction incision;
[0018] Figure 4 A schematic diagram of the structure of the second embodiment of the adjustable bow-shaped elastic automatic pull hook provided by this utility model;
[0019] Figure 5 for Figure 4 The diagram shows the internal structure of the fixed shaft.
[0020] The following are the labels in the diagram: 1. First spring plate, 2. Second spring plate, 3. Fixing buckle, 4. Fixing shaft, 5. Connecting plate, 51. Slot, 6. First hook, 7. Through hole, 8. Connecting strip, 9. Second hook, 10. Locking block, 11. Protrusion. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] First embodiment:
[0023] Please see Figures 1-3 , Figure 1 A schematic diagram of a preferred embodiment of the adjustable bow-shaped elastic automatic pull hook provided by this utility model; Figure 2 Schematic diagram of adjustable bow-shaped elastic automatic pull hook for pulling the incision;
[0024] Figure 3 This is a schematic diagram of an existing manual retractor for incision traction; the adjustable bow-shaped elastic automatic retractor includes: a first spring plate 1 and a second spring plate 2, with a fixing shaft 4 mounted on one end of the first spring plate 1 and the second spring plate 2, and the fixing shaft 4 also mounted on the other end of the first spring plate 1; the side walls of the first spring plate 1 and the second spring plate 2 are slidably connected to fixing buckles 3; a connecting plate 5 is mounted on the side wall of the fixing shaft 4, and the surface of the connecting plate 5 engages with a first retractor 6 for traction of the incision; when incision traction is required, the first retractor 6 matching the surgical type is selected; the first spring plate 1 is bent, one end of the first retractor 6 engages with the connecting plate 5, the other end of the first retractor 6 hooks the incision, and the fixing shaft 4 is rotated inside the through hole 7, changing the angle of the fixing shaft 4, and the fixing shaft 4 drives... The first hook 6 rotates, thereby adjusting the angle between the first hook 6 and the incision, releasing the first spring plate 1. Due to the tension of the bent first spring plate 1, the first spring plate 1 expands outward, causing the first hook 6 to move outward, so that the first hook 6 hooks the patient's surgical incision. The fixing buckle 3 slides on the side wall of the first spring plate 1 and the second spring plate 2. When the fixing buckle 3 moves, the first spring plate 1 and the second spring plate 2 gradually move closer, and the second spring plate 2 gradually bends. The elasticity of the second spring plate 2 is greater than that of the first spring plate 1. The tension generated by the bending of the second spring plate 2 is greater than that generated by the bending of the first spring plate 1, so that the second spring plate 2 pulls the first hook 6 outward, causing the first hook 6 to widen the incision and expose the surgical field.
[0025] The elasticity of the first spring plate 1 is less than that of the second spring plate 2, and the length of the second spring plate 2 is less than that of the first spring plate 1; in order to make the second spring plate 2 bend to provide greater tension to the first hook 6, so that the first hook 6 can pull open the cut.
[0026] Both ends of the first spring plate 1 and one end of the second spring plate 2 are provided with through holes 7, and the fixed shaft 4 passes through the through holes 7. The two ends of the fixed shaft 4 have large diameters, the middle diameter of the fixed shaft 4 has small diameters, and the maximum diameter of the fixed shaft 4 is greater than the diameter of the through hole 7, while the minimum diameter of the fixed shaft 4 is less than the diameter of the through hole 7. When using the fixed shaft 4, it is easy for the fixed shaft 4 to bend and detach from the through hole 7, and it is easy for the spring plate to drive the fixed shaft 4 to move. The fixed shaft 4 can also rotate inside the through hole 7 to change the angle between the fixed shaft 4 and the through hole 7, thereby adjusting the pulling angle of the spring plate on the fixed shaft 4 and the first hook 6, making it easy to pull the cut open from different directions.
[0027] The surface of the connecting plate 5 is provided with a plurality of slots 51 at equal intervals. The first hook 6 is engaged inside the slots 51. In order to facilitate changing the position of the first hook 6 on the surface of the connecting plate 5, thereby adjusting the distance between the first hook 6 and the fixed shaft 4, it is convenient for the first hook 6 to pull the cut.
[0028] Second embodiment:
[0029] Please see Figure 4 and Figure 5 , Figure 4 A schematic diagram of the structure of the second embodiment of the adjustable bow-shaped elastic automatic pull hook provided by this utility model; Figure 5 for Figure 4The schematic diagram of the internal structure of the fixed shaft shown indicates that the adjustable bow-shaped elastic automatic pull hook includes: a first spring plate 1 and a second spring plate 2. A fixed shaft 4 is installed at one end of the first spring plate 1 and the second spring plate 2, and the fixed shaft 4 is also installed at the other end of the first spring plate 1. A fixing buckle 3 is slidably connected to the sidewalls of the first spring plate 1 and the second spring plate 2. The fixed shaft 4 is hollow inside, and multiple arc-shaped locking blocks 10 are provided inside the fixed shaft 4. A connecting strip 8 is slidably connected inside the fixed shaft 4, and a second pull hook 9 is installed at one end of the connecting strip 8. Multiple protrusions 11 are provided on the surface of the connecting strip 8, and the protrusions 11 engage with the locking blocks 10. This device is a disposable surgical instrument used in surgeries involving superficial skin retraction or minimal tissue retraction. When the connecting strip 8 is inserted into the fixed shaft 4, the connecting strip 8 causes the protrusions 11 to slide past the arc-shaped locking blocks 10, adjusting the position of the second pull hook 9. During surgery, the first spring plate 1 is bent... The second hook 9 is hooked onto the incision by bending the fixed shaft 4. The angle between the second hook 9 and the incision is adjusted by rotating the fixed shaft 4. The first spring plate 1 is released, and the first spring plate 1 expands outward, causing the second hook 9 to move outward and hook onto the patient's surgical incision. The fixing buckle 3 slides on the side wall of the first spring plate 1 and the second spring plate 2. When the fixing buckle 3 moves, the first spring plate 1 and the second spring plate 2 gradually move closer, and the second spring plate 2 gradually bends. The elasticity of the second spring plate 2 is greater than that of the first spring plate 1. The tension generated by the bending of the second spring plate 2 is greater than that generated by the bending of the first spring plate 1, thereby causing the second spring plate 2 to pull the second hook 9 outward, widening the incision and exposing the surgical field. During the process of the fixed shaft 4 pulling the connecting strip 8, the bending direction of the locking block 10 is opposite to the direction in which the protrusion 11 is pulled. The locking block 10 abuts against the side wall of the protrusion 11, preventing the connecting strip 8 from sliding inside the fixed shaft 4.
[0030] The elasticity of the first spring plate 1 is less than that of the second spring plate 2, and the length of the second spring plate 2 is less than that of the first spring plate 1; in order to make the second spring plate 2 bend to provide greater tension to the first hook 6, so that the second hook 9 can pull open the cut.
[0031] Both ends of the first spring plate 1 and one end of the second spring plate 2 are provided with through holes 7, and the fixed shaft 4 passes through the through holes 7. The two ends of the fixed shaft 4 have large diameters, the middle diameter of the fixed shaft 4 has small diameters, and the maximum diameter of the fixed shaft 4 is greater than the diameter of the through hole 7, while the minimum diameter of the fixed shaft 4 is less than the diameter of the through hole 7. When using the fixed shaft 4, it is easy for the fixed shaft 4 to bend and detach from the through hole 7, and it is easy for the spring plate to drive the fixed shaft 4 to move. The fixed shaft 4 can also rotate inside the through hole 7 to change the angle between the fixed shaft 4 and the through hole 7, thereby adjusting the pulling angle of the second pull hook 9, which makes it easy to pull the cut open from different directions.
[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An adjustable bow-shaped elastic automatic pull hook, characterized in that, include; A first spring plate (1) and a second spring plate (2), with a fixed shaft (4) installed at one end of the first spring plate (1) and the second spring plate (2), and the fixed shaft (4) also installed at the other end of the first spring plate (1); the side walls of the first spring plate (1) and the second spring plate (2) are slidably connected to a fixing buckle (3); A connecting plate (5) is mounted on the side wall of the fixed shaft (4), and the surface of the connecting plate (5) engages with the first hook (6) for pulling the cut.
2. The adjustable bow-shaped elastic automatic pull hook according to claim 1, characterized in that, The elasticity of the first spring plate (1) is less than that of the second spring plate (2), and the length of the second spring plate (2) is less than that of the first spring plate (1).
3. The adjustable bow-shaped elastic automatic pull hook according to claim 1, characterized in that, Both ends of the first spring plate (1) and one end of the second spring plate (2) are provided with through holes (7), and the fixed shaft (4) passes through the through holes (7).
4. The adjustable bow-shaped elastic automatic pull hook according to claim 3, characterized in that, The fixed shaft (4) has large diameters at both ends and small diameter in the middle. The maximum diameter of the fixed shaft (4) is greater than the diameter of the through hole (7), and the minimum diameter of the fixed shaft (4) is less than the diameter of the through hole (7).
5. The adjustable bow-shaped elastic automatic pull hook according to claim 1, characterized in that, The surface of the connecting plate (5) is provided with a plurality of slots (51) at equal intervals, and the first hook (6) is engaged inside the slots (51).
6. The adjustable bow-shaped elastic automatic pull hook according to claim 1, characterized in that, The fixed shaft (4) is hollow inside, and the fixed shaft (4) is provided with multiple locking blocks (10) with arc-shaped sidewalls inside; the fixed shaft (4) is slidably connected to a connecting strip (8), and a second hook (9) is installed at one end of the connecting strip (8); the surface of the connecting strip (8) is provided with multiple protrusions (11), and the protrusions (11) engage with the locking blocks (10).