CN200954122Y - Improved sternum retractor - Google Patents
Improved sternum retractor Download PDFInfo
- Publication number
- CN200954122Y CN200954122Y CN 200620138602 CN200620138602U CN200954122Y CN 200954122 Y CN200954122 Y CN 200954122Y CN 200620138602 CN200620138602 CN 200620138602 CN 200620138602 U CN200620138602 U CN 200620138602U CN 200954122 Y CN200954122 Y CN 200954122Y
- Authority
- CN
- China
- Prior art keywords
- plate
- rack plate
- rack
- gear rack
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a modified sternum spreader, which comprises a handle, a rolling wheel, a gear rack plate, an active arm that can move along the gear rack plate and a fixed arm fixing connected with the gear rack plate. Sliding gear is arranged inside the gear rack plate and engages the rolling wheel; an opening, which is arranged on the top of the gear rack plate, divides the gear rack plate into two parts, one part of which is provided with sliding gear; two openings, which are arranged on the sliding part of the end of the active arm, hold the two parts of the gear rack plate respectively and cases on the gear rack plate through the opening on the gear rack plate. Because the two parts of the gear rack plate insert into the openings of the sliding part of the active arm respectively, the gear rack plate is sufficiently positioned, metamorphosis phenomenon caused by force receiving is avoided and the sliding of the active arm is more fluent; meanwhile, the disassembly and assembly are operated at the opening of the gear rack plate so that the process is more convenient.
Description
Technical field
This utility model relates to a kind of surgical operation sternal retractor, especially a kind of help the clear sternal retractor that exposes the Rhizoma Atractylodis Macrocephalae open country of mammary artery.
Background technology
As shown in Figure 1, sternal retractor in the past comprises handle, runner, rack-plate, the lever arm that can slide along rack-plate, and with the fixed arm of rack-plate Joint, slip teeth is arranged on the inside of rack-plate, is meshed with runner.In the use, because rack-plate is subjected to the extruding force from a plurality of directions, and rack-plate central authorities have the chute that slides for lever arm, therefore, the both sides of rack-plate can be pushed to central authorities, even cause distortion, so, the slip of lever arm will be very not smooth, the carrying out of influence operation.In addition because the rack-plate top seals, therefore, when needs when rack-plate takes off lever arm, runner need be had a rest down, operate more loaded down with trivial details.
Summary of the invention
The purpose of this utility model is to cause using the deficiency that has some setbacks at what exist in the prior art because operation process middle rack plate is out of shape, and provides a kind of and can not be out of shape and novel sternal retractor for convenience detach.
The technical solution of the utility model is: a kind of improved sternal retractor, comprise handle, runner, rack-plate, can be along the active lever arm of rack-plate, and with the fixed arm of rack-plate Joint, slip teeth is arranged on the inside of rack-plate, is meshed with runner; An opening is established on the top of rack-plate, and rack-plate is divided into two parts, and wherein a part has slip teeth; The sliding part of lever arm one end is provided with two openings, holds two parts of rack-plate respectively, and by the opening sleeve on the rack-plate on rack-plate.
The beneficial effects of the utility model are: because two parts of rack-plate penetrate respectively in the opening of sliding part on the lever arm, therefore, rack-plate is by spacing fully, the metaboly that causes owing to stressed can not occur, and the slip of lever arm is more smooth; Simultaneously,, the dismounting of travelling arm carries out because being breach from rack-plate, and therefore more easy.
Description of drawings
Fig. 1 is the structural representation of existing retractor;
Fig. 2 is the structural representation of this utility model specific embodiment;
Fig. 3 is the structural representation of this utility model specific embodiment lever arm;
Fig. 4 is the structural representation of this utility model specific embodiment rack-plate.
The specific embodiment
As Fig. 2 to specific embodiment of the utility model shown in Figure 4, a kind of improved sternal retractor, comprise runner 1, rack-plate 2, can be along rack-plate 2 active lever arms 3, and with the fixed arm 4 of rack-plate 2 Joints, slip teeth 5 is arranged on the inside of rack-plate 2, is meshed with runner 1; An opening 6 is established on the top of rack-plate 2, and rack-plate 2 is divided into two parts, and wherein a part has slip teeth 5; The sliding part 8 of lever arm 3 one ends is provided with two openings 7, holds two parts of rack-plate 2 respectively, and is enclosed within on the rack-plate 2 by the opening on the rack-plate 26.
During use, the lever arm 3 that runner 1 is installed is installed on the rack-plate by opening 6 and opening 7, cooperates accessories such as handle, machine leader and hook subsequently, can implement the operation that breastbone retracts.
Claims (1)
1. improved sternal retractor, comprise handle, runner, rack-plate, can be along the active lever arm of rack-plate, and with the fixed arm of rack-plate Joint, slip teeth is arranged on the inside of rack-plate, is meshed with runner; It is characterized in that: an opening is established on the top of rack-plate, and rack-plate is divided into two parts, and wherein a part has slip teeth; The sliding part of lever arm one end is provided with two openings, holds two parts of rack-plate respectively, and by the opening sleeve on the rack-plate on rack-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138602 CN200954122Y (en) | 2006-09-15 | 2006-09-15 | Improved sternum retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620138602 CN200954122Y (en) | 2006-09-15 | 2006-09-15 | Improved sternum retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200954122Y true CN200954122Y (en) | 2007-10-03 |
Family
ID=38772707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620138602 Expired - Lifetime CN200954122Y (en) | 2006-09-15 | 2006-09-15 | Improved sternum retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200954122Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665904A (en) * | 2009-09-24 | 2015-06-03 | 斯恩蒂斯有限公司 | Distractor with removable footplates |
-
2006
- 2006-09-15 CN CN 200620138602 patent/CN200954122Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665904A (en) * | 2009-09-24 | 2015-06-03 | 斯恩蒂斯有限公司 | Distractor with removable footplates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071003 |
|
| EXPY | Termination of patent right or utility model |