CN219422919U - Novel handle applied to joint scissors - Google Patents

Abstract

The utility model belongs to the technical field of medical appliances, and particularly relates to a novel handle applied to joint scissors, which comprises a fixed handle and a movable handle, wherein one end of the fixed handle and one end of the movable handle are hinged together through pins, and racks are arranged on the movable handle; the fixed handle is internally provided with a gear which can be meshed with the rack, the gear is connected with the inner core, the movable handle moves up and down through the rack in the opening and closing process to drive the gear to rotate, so that the inner core rotates in the outer pipe, and the movable shear head and the fixed shear head are respectively fixed at the end parts of the inner core and the outer pipe, so that the movable shear head and the fixed shear head can be opened and closed when the inner core and the outer pipe rotate relatively, and the shearing of the joint shear is realized. The utility model has compact and reasonable structure, can conveniently rotate 360 degrees, and can replace finger ring type joint scissors with various angles. The joint shearing angle can be conveniently adjusted in the hand of a user, meniscus injuries at all angles are treated, the frequency of instrument replacement and the operation time in operation are reduced, and the infection probability and the operation risk are reduced.

Description

Novel handle applied to joint scissors

Technical Field

The utility model relates to a novel handle applied to joint scissors, and belongs to the technical field of medical appliances.

Background

The meniscus injury is the most common orthopaedics disease in knee joint movement trauma, the operation treatment difficulty is relatively high due to complex anatomical position and large individual variation, and along with the gradual development of arthroscopy technology in clinic, the arthroscopy meniscus forming operation has the advantages of small trauma, clear visual field, quick postoperative rehabilitation and the like, and is becoming one of the main operation modes for treating meniscus injury.

At present, the handles of the arthroscope are all in finger ring type, as shown in fig. 7, when in use, the thumb and the index finger are respectively placed into the fixed finger ring 19 and the movable finger ring 18, so that the fixed finger ring 19 and the movable finger ring 18 are close to or far away from each other, and the opening and closing of the scissors are realized. But the joint scissors of this kind of structure cause the adjustment of shearing angle very inconvenient through the mode that thumb and forefinger held between the fingers, for the damage of each angle meniscus of better processing, the specification of using always has straight, left turn, right turn, consequently can change each direction apparatus in the art to extension operation time increases the infection probability, increases the operation risk.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: the novel handle is applied to the joint scissors, the joint scissors angle can be conveniently adjusted in the hand of a user, meniscus injuries at all angles are treated, the frequency of instrument replacement and operation time in operation are reduced, and the infection probability and operation risk are reduced.

The novel handle applied to the joint scissors comprises a fixed handle and a movable handle, wherein one end of the fixed handle and one end of the movable handle are hinged together through pins, and racks are arranged on the movable handle; the fixed handle is internally provided with a gear which can be meshed with the rack, the gear is connected with the inner core, the movable handle moves up and down through the rack in the opening and closing process to drive the gear to rotate, so that the inner core rotates in the outer pipe, and the movable shear head and the fixed shear head are respectively fixed at the end parts of the inner core and the outer pipe, so that the movable shear head and the fixed shear head can be opened and closed when the inner core and the outer pipe rotate relatively, and the shearing of the joint shear is realized.

The joint scissor handle is provided with the elastic piece which can lead the fixed handle and the movable handle to be sprung out, so that the movable handle and the fixed handle are automatically separated after one shearing action is finished.

Preferably, the elastic piece is a spring B, and the spring B is positioned between the fixed handle and the movable handle.

The handle is provided with a locking sleeve which can lock the fixed handle and the movable handle, the locking sleeve can slide back and forth on the fixed handle, the fixed handle and the movable handle can be locked together when not in use, and at the moment, the movable shear head and the fixed shear head are closed to prevent the shear head from damaging personnel.

The locking sleeve is provided with a reset piece which can enable the locking sleeve to move backwards, and the locking sleeve can be stably sleeved on the fixed handle and the movable handle to prevent the locking sleeve from bouncing off.

Preferably, the reset piece is a spring A, and the spring A acts on the locking sleeve to enable the locking sleeve to generate a backward thrust.

Compared with the prior art, the utility model has the following beneficial effects:

the novel handle applied to the joint scissors is designed into cigar style, has compact and reasonable structure, can conveniently rotate by 360 degrees, and can replace finger ring type joint scissors with various angles. The joint shearing angle can be conveniently adjusted in the hand of a user, meniscus injuries at all angles are treated, the frequency of instrument replacement and the operation time in operation are reduced, and the infection probability and the operation risk are reduced.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in a closed state;

FIG. 2 is a cross-sectional view of the closed state;

FIG. 3 is an enlarged view of a portion of the portion A of FIG. 2;

FIG. 4 is a schematic view of the structure of the present utility model in an open state;

fig. 5 is a sectional view of an opened state;

FIG. 6 is a schematic view of the structure of the movable handle;

fig. 7 is a schematic view of a conventional joint scissors.

In the figure: 1. a movable shear head; 2. fixing the shear head; 3. an outer tube; 4. an inner core; 5. a baffle ring; 6. a spring A;7. a gasket; 8. a locking sleeve; 9. connecting sleeves; 10. a movable handle; 11. a stop block; 12. a screw mounting hole; 13. a gear; 14. a fixed handle; 15. a spring B;16. a pin; 17. a rack; 18. a movable finger ring; 19. and fixing the finger ring.

Detailed Description

The utility model will be further illustrated with reference to specific examples.

However, the description of the present utility model is merely an embodiment of a structural or even functional description, and the scope of the claims of the present utility model is not limited by the embodiments described herein.

For example, the embodiments may have various modifications and various forms, and it is to be understood that the scope of the claims of the present utility model includes equivalents capable of realizing the technical idea.

Also, since the objects or effects achieved by the present utility model do not mean that a specific embodiment should include all or only those effects, the scope of the right of the present utility model is not limited thereby.

As shown in fig. 1 to 6, the handle main body structure of the present embodiment includes a movable handle 10 and a fixed handle 14 rotatably connected together by a pin 16, a rack 17 is provided inside the movable handle 10, a locking tooth is provided at an outer head end of the movable handle, the rack 17 is engaged with a gear 13 inside the fixed handle 14, and the locking tooth is engaged with a locking sleeve 8 slidably provided at the head end of the fixed handle 14. The gear 13, the inner core 4 and the movable shear head 1 are fixed together, the fixed handle 14, the stop block 11, the connecting sleeve 9, the outer tube 3 and the fixed shear head are fixed together, the stop block 11 and the connecting sleeve 9 are used as the support of the outer tube 3, and the inner core 4 is arranged in the outer tube 3.

The spring B15 is positioned in the mounting groove between the fixed handle 14 and the movable handle 10, and can automatically separate the fixed handle 14 and the movable handle 10 after one shearing action is completed. The spring A is positioned between the locking sleeve 8 and the connecting sleeve 9, so that the locking sleeve 8 can move backwards, and is stably sleeved at the head ends of the fixed handle 14 and the movable handle 10, and the locking sleeve is prevented from bouncing off. The contact part of the locking sleeve 8 and the connecting sleeve 9 is also provided with a baffle ring 5 and a gasket 7 which play a role in sealing. The stop 11 and the connecting sleeve 9 are fixed by means of locking screws located in screw mounting holes 12.

The working principle of the embodiment is as follows:

during operation, the locking sleeve 8 is pushed forward to open the locking teeth, the movable handle 10 rotates around the pin 16 to be opened under the action of the spring B15, and the rack 17 in the movable handle 10 drives the gear 13, the inner core 4 and the movable scissor head 1 to rotate, so that the scissor head is opened. Pressing the movable handle 10 realizes the closing of the scissors and completes the shearing.

When the shearing angle needs to be changed, the joint scissors are in a closed state, and the locking sleeve 8 is pushed backwards to close the locking teeth, so that the joint scissors cannot be opened by themselves, and human tissues are prevented from being injured by mistake in the rotating process. Then the joint scissors rotate to the damaged part in the hands of the operator to finish the operation, thus reducing the replacement of instruments in the operation and reducing the infection probability and the operation risk

Of course, the foregoing is merely preferred embodiments of the present utility model and is not to be construed as limiting the scope of the embodiments of the present utility model. The present utility model is not limited to the above examples, and those skilled in the art will appreciate that the present utility model is capable of equally varying and improving within the spirit and scope of the present utility model.

Claims (6)

1. The novel handle applied to the joint scissors is characterized by comprising a fixed handle (14) and a movable handle (10) which are hinged together through a pin (16), wherein the movable handle (10) is provided with a rack (17); a gear (13) which can be meshed with the rack (17) is arranged in the fixed handle (14), the gear is connected with the inner core (4), and the movable handle (10) drives the gear (13) to rotate through the rack (17) in the opening and closing process so that the inner core (4) rotates in the outer tube (3).

2. A new handle for joint scissors according to claim 1, characterized by the fact that it is provided with elastic means for the elastic opening of the fixed handle (14) and the movable handle (10).

3. The novel handle for a pair of scissors according to claim 2, wherein the elastic member is a spring B (15), and the spring B (15) is located between the fixed handle (14) and the movable handle (10).

4. The novel handle for the joint scissors according to claim 1, wherein a locking sleeve (8) capable of locking the fixed handle (14) and the movable handle (10) is arranged on the handle, and the locking sleeve (8) can slide back and forth on the fixed handle (14).

5. A new handle for joint scissors according to claim 4, characterized in that the locking sleeve (8) is provided with a return member which tends to displace it backwards.

6. The novel handle for a pair of scissors according to claim 5, wherein the restoring member is a spring a (6).