CN209951312U

CN209951312U - Bidirectional synchronous spreader

Info

Publication number: CN209951312U
Application number: CN201920344651.0U
Authority: CN
Inventors: 陈兴涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-01-17
Anticipated expiration: 2029-03-19

Abstract

The utility model discloses a two-way synchronous ware that struts, wherein: both ends are twisted respectively at screw rod (1) left and right sides swivel nut A (2), swivel nut B (5), both ends are provided with spacing A (11), spacing B (13) respectively about axle (10), sliding sleeve A (9), sliding sleeve B (14) are emboliaed respectively at both ends about axle (10), swivel nut A (2) one end is with connecting rod D (15) connection sliding sleeve B (14), blade A (4) are connected with connecting rod A (3) to the other end, sliding sleeve A (9) are connected with connecting rod C (8) to swivel nut B (5) one end, blade B (7) are connected with connecting rod B (6) to the other end, the utility model discloses the atress is even, can two-way synchronous operation, and the position of holding the hand of strutting the ware does not need to remove when strutting, convenient to use.

Description

Bidirectional synchronous spreader

Technical Field

The utility model belongs to the technical field of medical instrument, specifically speaking relates to a two-way synchronous ware that struts.

Background

The spreader is also called as a blade, is used for spreading tissues during cardiac surgery, exposes the required surgical range, is convenient to probe and operate, and is divided into two types, namely a handheld blade and an automatic blade. The blade has various specifications of different shapes and sizes, and the proper blade can be selected according to the operation requirement. The sternum retractors in the prior art generally comprise a handle, a rack, a rotating wheel, a movable arm and a fixed arm, wherein the rack is connected to the top ends of the movable arm and the fixed arm. When the retractor with the structure is used, the movable arm and the fixed arm cannot move, expand and contract simultaneously, the movable arm expands and the fixed arm does not move in the using process, so that the movable arm and the fixed arm are stressed unevenly when expanding and cannot run synchronously in two directions, and the position of a hand holding the expander during expanding is moved along with the position of the movable arm moving hand, so that the retractor is inconvenient to use.

Disclosure of Invention

The utility model aims to overcome the defects and provide a bidirectional synchronous distractor which has even stress and can operate bidirectionally, and the position of the hand holding the distractor when the distractor is distracted does not need to be moved, thereby being convenient for use.

The utility model discloses the purpose and solve its main technical problem and adopt following technical scheme to realize:

the utility model discloses a two-way synchronous ware that struts, its characterized in that: the screw sleeve A and the screw sleeve B are screwed into the left end and the right end of the screw rod respectively, the limiting strip A and the limiting strip B are arranged at the left end and the right end of the shaft respectively, the sliding sleeve A and the sliding sleeve B are sleeved into the left end and the right end of the shaft respectively, one end of the screw sleeve A is connected with the sliding sleeve B through a connecting rod D, the other end of the screw sleeve A is connected with the blade A through the connecting rod A, one end of the screw sleeve B is connected with the sliding sleeve A through a.

The threads arranged at the left end and the right end of the screw rod are respectively positive threads and negative threads.

The threads arranged in the thread sleeve A and the thread sleeve B which are respectively screwed into the left end and the right end of the screw rod are respectively positive threads and negative threads.

The limiting strip A and the limiting strip B are arranged at the left end and the right end of the shaft respectively, the sliding sleeve A and the sliding sleeve B are sleeved at the left end and the right end of the shaft respectively and are sleeved outside the limiting strip A and the limiting strip B at the left end and the right end of the shaft respectively, the limiting strip A and the limiting strip B are clamped into grooves formed in the sliding sleeve A and the sliding sleeve B respectively, and the sliding sleeve A and the sliding sleeve B can slide left and right outside the left end and the right end of the shaft, the limiting strip A and the limiting strip B respectively.

The rotating rod is inserted into the screw rod.

The middle part of the shaft is provided with a handle.

Compared with the prior art, the utility model obvious advantage and beneficial effect have. According to the technical scheme, the threaded sleeve A and the threaded sleeve B are screwed at the left end and the right end of the screw respectively, the limiting strip A and the limiting strip B are arranged at the left end and the right end of the shaft respectively, the sliding sleeve A and the sliding sleeve B are sleeved at the left end and the right end of the shaft respectively, one end of the threaded sleeve A is connected with the sliding sleeve B through the connecting rod D, the other end of the threaded sleeve A is connected with the blade A through the connecting rod A, one end of the threaded sleeve B is connected with the sliding sleeve A through the connecting rod. The blade A and the blade B are inserted only, the screw rod is rotated to enable the screw sleeve A and the screw sleeve B to move towards the left end and the right end, the sliding sleeve A and the sliding sleeve B synchronously slide towards the left end and the right end of the shaft, the handle is fixed, uniform stress is realized, bidirectional synchronous operation can be realized, the position of a hand holding the spreader during spreading does not need to be moved, and the use is convenient.

Description of the drawings:

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

fig. 2 is a right side view of the present invention.

Fig. 3 is a top view of the present invention;

FIG. 4 is a front view of the screw of the present invention;

FIG. 5 is a schematic structural view of the screw sleeve A, the connecting rod A, the blade A, the sliding sleeve B and the connecting rod D of the present invention;

FIG. 6 is a right side view of the screw sleeve A, the connecting rod A, the vane A, the sliding sleeve B and the connecting rod D of the present invention;

fig. 7 is a schematic structural view of the screw sleeve B, the connecting rod B, the blade B, the connecting rod C and the sliding sleeve a of the present invention;

FIG. 8 is a right side view of the screw barrel B, the connecting rod B, the blade B, the connecting rod C and the sliding sleeve A of the present invention;

marked in the figure;

1. a screw; 2. a threaded sleeve A; 3. a connecting rod A; 4. a blade A; 5. a threaded sleeve B; 6. a connecting rod B; 7. a blade B; 8. a connecting rod C; 9. a sliding sleeve A; 10. a shaft; 11. a limiting strip A; 12. A handle; 13. a limiting strip B; 14. a sliding sleeve B; 15. a connecting rod D; 16. and (4) rotating the rod.

Detailed Description

The following detailed description of the embodiments, features and effects of the bidirectional synchronous distractor according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 8, the utility model discloses a bidirectional synchronous distractor, its characterized in that: the left end and the right end of the screw rod 1 are respectively screwed into a threaded sleeve A2 and a threaded sleeve B5, the left end and the right end of the shaft 10 are respectively provided with a limiting strip A11 and a limiting strip B13, the left end and the right end of the shaft 10 are respectively sleeved into a sliding sleeve A9 and a sliding sleeve B14, one end of the threaded sleeve A2 is connected with a sliding sleeve B14 through a connecting rod D15, the other end of the threaded sleeve A3 is connected with a blade A4, one end of the threaded sleeve B5 is connected with a sliding sleeve A9 through a connecting rod C8, and the other end.

The threads arranged at the left end and the right end of the screw rod 1 are respectively positive threads and negative threads.

The threads arranged in the thread sleeve A2 and the thread sleeve B5 which are respectively screwed into the left end and the right end of the screw rod 1 are respectively positive and negative threads.

The left end and the right end of the shaft 10 are respectively provided with a limiting strip A11 and a limiting strip B13, the left end and the right end of the shaft 10 are respectively sleeved in a sliding sleeve A9 and a sliding sleeve B14, a sliding sleeve A9 and a sliding sleeve B14 are respectively sleeved outside a limiting strip A11 and a limiting strip B13 at the left end and the right end of the shaft 10, the limiting strip A11 and the limiting strip B13 are clamped in grooves respectively arranged in a sliding sleeve A9 and a sliding sleeve B14, and the sliding sleeve A9 and the sliding sleeve B14 can respectively slide left and right outside the left end of the shaft 10, the limiting strip A11 and the limiting strip B13.

A rotating rod 16 is inserted on the screw rod 1.

A handle 12 is arranged in the middle of the shaft 10.

When the patient lies on an operating table, the patient holds the handle 12 with one hand to insert the blade A4 and the blade B7 into the sternum of the patient, the other hand rotates the rotating rod 16 to rotate the screw rod 1, the screw sleeve A2 and the screw sleeve B5 are driven to move towards the left end and the right end, the screw sleeve A2 and the screw sleeve B5 drive the connecting rod A3 and the connecting rod B6 to move towards the left end and the right end respectively, meanwhile, the screw sleeve A2 and the screw sleeve B5 drive the connecting rod C8 and the connecting rod D15 to move towards the left end and the right end respectively, the connecting rod C8 and the connecting rod D15 drive the sliding sleeve A9 and the sliding sleeve B14 to synchronously slide towards the left end and the right end of the shaft 10 respectively, the handle 12 is not moved, and the connecting rod A3 and the connecting rod B6 drive the blade A4 and the blade B7.

The aforesaid is only the preferred embodiment of the utility model discloses, it is not right the utility model discloses constitute the restriction, any if do not break away from the technical scheme content of the utility model, any simple modification, equivalent change and modification of making all still belong to the technical scheme's of the utility model within range.

Claims

1. A bidirectional synchronous distractor is characterized in that: the screw sleeve A (2) and the screw sleeve B (5) are screwed into the left end and the right end of the screw rod (1) respectively, a limiting strip A (11) and a limiting strip B (13) are arranged at the left end and the right end of the shaft (10), the sliding sleeve A (9) and the sliding sleeve B (14) are sleeved into the left end and the right end of the shaft (10) respectively, one end of the screw sleeve A (2) is connected with the sliding sleeve B (14) through a connecting rod D (15), the other end of the screw sleeve A (2) is connected with the blade A (4) through a connecting rod A (3), one end of the screw sleeve B (5) is connected with the sliding sleeve A (9).

2. The bidirectional synchronized distractor of claim 1, wherein: the threads arranged at the left end and the right end of the screw rod (1) are respectively positive threads and negative threads.

3. The bidirectional synchronized distractor of claim 1, wherein: the threads arranged in the thread sleeve A (2) and the thread sleeve B (5) which are respectively screwed into the left end and the right end of the screw rod (1) are respectively positive threads and negative threads.

4. The bidirectional synchronized distractor of claim 1, wherein: both ends are provided with spacing A (11), spacing B (13) respectively about axle (10), and sliding sleeve A (9), sliding sleeve B (14) are emboliaed respectively at both ends about axle (10), and sliding sleeve A (11), the spacing B (13) outside at both ends about axle (10) are overlapped respectively in sliding sleeve A (9), sliding sleeve B (14), and spacing A (11), spacing B (13) card are gone into in the recess that sets up respectively in sliding sleeve A (9), sliding sleeve B (14), and sliding sleeve A (9), sliding sleeve B (14) can be respectively about axle (10) both ends, spacing A (11), spacing B (13) outside horizontal slip.

5. The bidirectional synchronized distractor of claim 1, wherein: the screw (1) is inserted with a rotating rod (16).

6. The bidirectional synchronized distractor of claim 1, wherein: the middle part of the shaft (10) is provided with a handle (12).