CN214907440U

CN214907440U - Retractor with replaceable retractor blade

Info

Publication number: CN214907440U
Application number: CN202120392100.9U
Authority: CN
Inventors: 安向阳
Original assignee: Central Hospital of Zibo
Current assignee: Central Hospital of Zibo
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-11-30
Anticipated expiration: 2031-02-22

Abstract

The utility model belongs to the technical field of medical equipment, in particular to a retractor with replaceable drag hook blades, which comprises a rack, wherein one end of the rack is fixedly connected with a fixed arm, a movable arm is arranged on the rack in a sliding way, the position of the movable arm on the rack can be fixed, the head ends of the fixed arm and the movable arm respectively comprise a fixed part and a movable part, the movable part is rotationally connected with the fixed part through a pin shaft, the fixed part and the movable part form an annular structure with an opening, an elastic body is also arranged between the fixed part and the movable part, and the elastic body ensures that the opening keeps a fixed size; the blade pin of the drag hook blade can be clamped in the opening. The retractor arm head of the utility model is designed into a flexible structure, which is convenient for the disassembly of the retractor blades with different specifications, shortens the operation time, improves the operation efficiency and reduces the working intensity of medical staff; each section of single arm of the fixed arm and each section of single arm of the movable arm are rotatably connected through a rotating shaft, each section of single arm can be bent at will, and the adaptability is stronger.

Description

Retractor with replaceable retractor blade

Technical Field

The utility model relates to a retractor with replaceable retractor blades, belonging to the technical field of medical instruments.

Background

The retractor is used for retracting tissues, exposing the field of vision to be operated, is convenient to explore and operate, has various specifications of different shapes and sizes, and can select the retractor blades of different specifications to use according to requirements. But the existing retractor has unreasonable structure and is very inconvenient to operate and use, most prominently, the retractor arm head is of a rigid structure, so that the retractor blade is difficult to replace, difficult to install after being taken down and difficult to take down after being installed; moreover, the two arms of the retractor are rigid structures, so that the retractor is difficult to adhere to the skin surface of a patient for operation, and the retracting angle is difficult to maintain.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: overcomes the defects of the prior art and provides a retractor with replaceable drag hook blades so as to solve the problems.

The retractor with the replaceable drag hook blade comprises a rack, wherein one end of the rack is fixedly connected with a fixed arm, a movable arm is arranged on the rack in a sliding manner, the position of the movable arm on the rack can be fixed, the head ends of the fixed arm and the movable arm respectively comprise a fixed part and a movable part, the movable part is rotatably connected with the fixed part through a pin shaft, the fixed part and the movable part form an annular structure with an opening, and an elastic body is arranged between the fixed part and the movable part and enables the opening to keep a fixed size; the blade pin of the drag hook blade can be clamped in the opening.

The movable arm moves on the rack, and the movable arm is separated from the fixed arm, so that the field of view to be operated is exposed by retracting the tissue. The drag hook blades of different specifications can be selected for use according to requirements, when the drag hook blades need to be taken down, an operator directly holds the drag hook blades, the blade pins move outwards under stress, the elastic bodies are compressed, the openings are expanded, and the blade pins are taken out of the annular structure; the installation is the same, convenient operation.

Preferably, the elastic body is a micro spring.

The rack on slide and be equipped with the slider, digging arm and slider fixed connection are equipped with the wrench movement gear on the slider and from the locking plate. The twist gear is used for rotating and adjusting the position of the movable arm on the rack, and the self-locking piece is used for preventing the movable arm from moving towards the fixed arm after the movable arm is in place, so that the state of retracting tissues is kept.

Preferably, the fixed arm and the movable arm comprise a plurality of sections of single arms, and each section of single arm is rotatably connected through a rotating shaft. Each single arm can be bent freely to fit the skin surface of the patient to be operated and maintain the retraction angle.

Compared with the prior art, the utility model beneficial effect who has is:

the retractor with the replaceable retractor blades has reasonable structural design, the retractor arm head is designed into a flexible structure, thereby being convenient for the disassembly of the retractor blades with different specifications, shortening the operation time, improving the operation efficiency and reducing the working strength of medical staff; each section of single arm of the fixed arm and each section of single arm of the movable arm are connected in a rotating mode through a rotating shaft, each section of single arm can be bent at will, and the adaptability is stronger, so that the skin surface of a patient in operation can be attached, and the retracting angle can be kept.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of the engagement of a twist gear with a rack;

FIG. 4 is a schematic view of one of the retractor blades;

fig. 5 is a sectional view of B-B in fig. 4.

In the figure: 1. pulling the hook blade; 2. a fixed arm; 3. a rotating shaft; 4. a rack; 5. a movable arm; 6. a slider; 7. a self-locking plate; 8. a fixing pin; 9. a torsion spring; 10. twisting the gear; 11. a fixed part; 12. a movable portion; 13. a pin shaft; 14. an elastomer; 15. an opening; 16. a leaf pin.

Detailed Description

The invention will be further described with reference to the following examples:

as shown in fig. 1 to 5, the retractor with replaceable retractor blades of the present invention comprises a rack 4, wherein one end of the rack 4 is fixedly connected with a fixed arm 2, a movable arm 5 is slidably disposed on the rack 4, the position of the movable arm 5 on the rack 4 can be fixed, the head ends of the fixed arm 2 and the movable arm 5 respectively comprise a fixed portion 11 and a movable portion 12, the movable portion 12 is rotatably connected with the fixed portion 11 through a pin 13, the fixed portion 11 and the movable portion 12 form an annular structure with an opening 15, an elastic body 14 is further disposed between the fixed portion 11 and the movable portion 12, and the opening 15 is kept at a fixed size by the elastic body 14; the opening 15 can be engaged with a leaf pin 16 of the pull tab 1.

The elastic body 14 of this embodiment is a micro spring, and the micro spring is fixed between the fixed part 11 and the movable part 12 by two short pins (as shown in fig. 2).

The rack 4 of the embodiment is provided with a sliding block 6 in a sliding manner, the movable arm 5 is fixedly connected with the sliding block 6, and the sliding block 6 is provided with a twisting gear 10 and a self-locking piece 7. The twist gear 10 is internally engaged with the rack 4 as shown in fig. 3. The self-locking plate 7 is rotatably arranged at the root of the movable arm 5 through a fixing pin 8, and the self-locking plate 7 realizes self-locking by means of the elastic action of a torsion spring 9, as shown in figure 1.

The fixed arm 2 and the movable arm 5 comprise a plurality of sections of single arms, each section of single arm is rotatably connected through the rotating shaft 3, and each section of single arm can be bent at will.

The twisting gear 10 is twisted, the movable arm 5 moves on the rack 4, so that the movable arm 5 is separated from the fixed arm 2, the tissue between the two drag hook leaves 1 is retracted to expose the field of vision to be operated, and the self-locking piece 7 is used for preventing the movable arm 5 from moving towards the fixed arm 2 after the tissue is retracted to the proper position, so that the state of retracting the tissue is maintained. The drag hook leaves 1 with different specifications can be selected for use according to needs, when the drag hook leaves 1 need to be taken down, an operator directly holds the drag hook leaves 1, the leaf pin 16 moves outwards under the stress, the micro spring compresses, the opening 15 is enlarged, and the leaf pin 16 is taken out of the annular structure; the installation is the same, convenient operation. The utility model discloses a retractor arm head design is flexible structure, and the dismantlement of the different specification drag hook leaf pieces 1 of being convenient for shortens the operation time, improves operation efficiency, reduces medical staff's working strength.

Claims

1. The utility model provides a retractor of removable drag hook leaf, includes rack (4), and the one end of rack (4) has linked firmly fixed arm (2), and it is equipped with digging arm (5) to slide on rack (4), and its characterized in that can be fixed in the position of digging arm (5) on rack (4): the head ends of the fixed arm (2) and the movable arm (5) respectively comprise a fixed part (11) and a movable part (12), the movable part (12) is rotatably connected with the fixed part (11) through a pin shaft (13), the fixed part (11) and the movable part (12) form an annular structure with an opening (15), an elastic body (14) is further arranged between the fixed part (11) and the movable part (12), and the elastic body (14) enables the opening (15) to keep a fixed size; the opening (15) can be clamped with a leaf pin (16) of the drag hook leaf (1).

2. The retractor blade replaceable retractor blade of claim 1 wherein: the elastic body (14) is a micro spring.

3. The retractor blade replaceable retractor blade of claim 1 wherein: the rack (4) is provided with a sliding block (6) in a sliding manner, the movable arm (5) is fixedly connected with the sliding block (6), and the sliding block (6) is provided with a twisting gear (10) and a self-locking piece (7).

4. The retractor blade replaceable retractor blade of claim 1 wherein: the fixed arm (2) and the movable arm (5) comprise a plurality of sections of single arms, and each section of single arm is rotatably connected through a rotating shaft (3).