CN202086655U - Mastoid retractor - Google Patents
Mastoid retractor Download PDFInfo
- Publication number
- CN202086655U CN202086655U CN2011201791134U CN201120179113U CN202086655U CN 202086655 U CN202086655 U CN 202086655U CN 2011201791134 U CN2011201791134 U CN 2011201791134U CN 201120179113 U CN201120179113 U CN 201120179113U CN 202086655 U CN202086655 U CN 202086655U
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- CN
- China
- Prior art keywords
- bar
- stay
- crotch
- stays
- pincers handle
- 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.)
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Abstract
The utility model discloses a mastoid retractor, which comprises a forceps handle assembly formed by a left forceps handle (5) and a right forceps handle (6) and a hold-open rod assembly formed by a left hold-open rod (3) and a right hold-open rod (4). Four left support strips (1) are arranged in parallel at the head portion of the left hold-open rod (3), a 3-5mm left-side gap (10) is reserved between two adjacent left support strips (1), and three right support strips (2) which are interlaced with the four left support strips (1) are arranged at the head portion of the right hold-open rod (4). A left hook (11) with the opening to the left is disposed at the top end of each left support strip (1). A right hook (21) with the opening to the right is disposed at the top end of each right support strip (2). When used in operations, the mastoid retractor can avoid relative slippage between the left support strips and right support strips and behind-the-ear mastoid portion soft tissues and thus ensures that follow-up operations are performed smoothly.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of mastoid retractor.
Background technology
Mastoid retractor is a kind of apparatus commonly used in the operation, when the otology microsurgery, retracts mastoidea soft tissue usefulness behind the ear.
Present existing mastoid retractor comprises the pincers handle assembly is made up of left side pincers handle and right pincers handle and struts the bar assembly by what a left side strutted that bar and the right side strut that bar forms, left side pincers handle is rotatedly connected with right pincers handle, on right side pincers handle, be provided with the lock tooth bar, on the pincers handle of a left side, be provided with and lock the lock tooth that tooth bar matches; The afterbody that a left side struts bar is rotatedly connected with left side pincers handle, the afterbody that the right side struts bar is rotatedly connected with right pincers handle, the head that struts bar on a left side is set up in parallel 4 left stays, keep the wide gap, left side of 3～5mm between 2 adjacent left stays, strut head setting and 43 right stays that left stay is interlaced of bar on the right side; This left side stay and right stay are linear type.
During actual the use, regulate a left side earlier and strut bar and left relative angle of bend and the right relative angle of bend that struts between bar and the right pincers handle that clamps between the handle, again by handling left side pincers handle and right pincers handle, control left stay and right stay is separated from each other, thereby play the effect that retracts mastoidea soft tissue behind the ear, at this moment, 4 left stays and 3 right stays are close to mastoidea soft tissue behind the ear of both sides respectively; Lock tooth bar that cooperatively interacts and lock tooth are used for fixing the relative position relation between left stay and the right stay.Above-mentioned existing mastoid retractor exists following defective: because left stay and right stay are linear type, therefore after retracting ear during the mastoidea soft tissue, be easy to cause the relative sliding phenomenon between the mastoidea soft tissue behind left stay and right stay and the ear, thereby influence carrying out smoothly of subsequent procedures.
Summary of the invention
The technical problems to be solved in the utility model provide a kind of can avoid with ear after the mastoidea soft tissue mastoid retractor of relative sliding phenomenon takes place.
In order to solve the problems of the technologies described above, this utility model provides a kind of mastoid retractor, comprise the pincers handle assembly formed by left side pincers handle and right pincers handle and strut the bar assembly by what a left side strutted that bar and the right side strut that bar forms, left side pincers handle is rotatedly connected with right pincers handle, on right side pincers handle, be provided with the lock tooth bar, on the pincers handle of a left side, be provided with and lock the lock tooth that tooth bar matches; The afterbody that a left side struts bar is rotatedly connected with left side pincers handle, the afterbody that the right side struts bar is rotatedly connected with right pincers handle, the head that struts bar on a left side is set up in parallel 4 left stays, keep the wide gap, left side of 3～5mm between 2 adjacent left stays, strut head setting and 43 right stays that left stay is interlaced of bar on the right side; The left crotch of 1 opening towards a left side is set on the top of each left stay; The right crotch of 1 opening towards the right side is set on the top of each right stay.
Improvement as mastoid retractor of the present utility model: the cross section of left crotch is with the cross section of left stay, and the cross section of right crotch is with the cross section of right stay.
Mastoid retractor of the present utility model is owing to the left crotch of 1 opening towards a left side is set on the top of each left stay; The right crotch of 1 opening towards the right side is set on the top of each right stay; Therefore after making ear the mastoidea soft tissue retract operation the time, after left stay and right stay are close to the ear of both sides respectively in the mastoidea soft tissue, a left side crotch and right crotch can embed respectively behind the ear of both sides in the mastoidea soft tissue, thereby increased whole mastoid retractor to ear after the adhesive force of mastoidea soft tissue, therefore can avoid taking place the relative sliding phenomenon between the mastoidea soft tissue behind left stay and right stay and the ear, thereby guarantee carrying out smoothly of subsequent procedures.Because the cross section of left crotch is with the cross section of left stay, the cross section of right crotch is also with the cross section of right stay; Therefore contacting of mastoidea soft tissue is the face contact behind left crotch and right crotch and the ear, rather than the some contact, so can not cause damage to mastoidea soft tissue behind the ear substantially.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is the main TV structure sketch map of mastoid retractor of the present utility model;
Fig. 2 is that partial schematic diagram (only showing that a left side struts the relative position relation of bar 3, left stay 1 and left crotch 11) is looked on the left side after the amplification among Fig. 1;
Fig. 3 is that partial schematic diagram (only showing the right relative position relation that struts bar 4, right stay 2 and right crotch 21) is looked on the right side after the amplification among Fig. 1;
Fig. 4 is the cross-sectional schematic after the amplification that A-A cuts open among Fig. 1.
The specific embodiment
Fig. 1～Fig. 4 is in conjunction with having provided a kind of mastoid retractor, comprise the pincers handle assembly formed by left side pincers handle 5 and right pincers handle 6 and strut the bar assembly by what a left side strutted that bar 3 and the right side strut that bar 4 forms, left side pincers handle 5 is rotatedly connected with right pincers handle 6, on right side pincers handle 6, be provided with lock tooth bar 8, on the pincers handle 5 of a left side, be provided with and lock the lock tooth 7 that tooth bar 8 matches; The afterbody that a left side struts bar 3 is rotatedly connected with left side pincers handle 5, and the afterbody that the right side struts bar 4 is rotatedly connected with right pincers handle 6.The head that struts bar 3 on a left side is set up in parallel 4 left stays 1,4 left stays 1 all strut bar 3 perpendicular to a left side, the gap, left side 10 that keeps 3～5mm between 2 adjacent left stays 1 struts 3 interlaced right stays 2 of the left stay of the head setting of bar 4 and 41 on the right side; That is, the width in the gap, right side 20 between 2 adjacent right stays 2 equals the width in gap 10, left side, and the width that the width of right stay 2 equals left stay 1 is (all little by 1～1.5mm) than left side gap 10; Like this, strut bar 4 when closing up when a left side struts bar 3 and the right side, right stay 2 can be embedded in the gap 10, left side, and in like manner, left stay 1 can be embedded in the gap, right side 20.The all same prior art of said structure, the also same prior art of its using method.
The left crotch 11 of 1 opening towards a left side is set on the top of each left stay 1; The right crotch 21 of 1 opening towards the right side is set on the top of each right stay 2; That is, left crotch 11 is back-to-back form with right crotch 21.The cross section of left side crotch 11 is with the cross section of left stay 1, and the cross section of right crotch 21 is with the cross section of right stay 2.
During actual the use, regulate a left side earlier and strut bar 3 and left relative angle of bend and the right relative angle of bend that struts between bar 4 and the right pincers handle 6 that clamps between the handle 5, again by handling left side pincers handle 5 and right pincers handle 6, controlling left stay 1 and right stay 2 is separated from each other, after 4 left stays 1 and 3 right stays 2 are close to the ear of both sides respectively in the mastoidea soft tissue, 4 left crotches 11 and 3 right crotches 21 can be embedded into respectively behind the ear of both sides in the mastoidea soft tissue, thereby increased whole mastoid retractor to ear after the adhesive force of mastoidea soft tissue, therefore can avoid taking place the relative sliding phenomenon between the mastoidea soft tissue behind left stay 1 and right stay 2 and the ear, thereby guarantee carrying out smoothly of subsequent procedures.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, this utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of this utility model all should be thought protection domain of the present utility model.
Claims (2)
1. mastoid retractor, comprise the pincers handle assembly formed by left side pincers handles (5) and right pincers handles (6) and strut the bar assembly by what a left side strutted that bar (3) and the right side strut that bar (4) forms, described left side pincers handles (5) are rotatedly connected with right pincers handles (6), on right side pincers handles (6), be provided with lock tooth bar (8), on left side pincers handles (5), be provided with the lock tooth (7) that matches with described lock tooth bar (8); The afterbody that a described left side struts bar (3) is rotatedly connected with left side pincers handles (5), the afterbody that the right side struts bar (4) is rotatedly connected with right pincers handles (6), the head that struts bar (3) on a left side is set up in parallel 4 left stays (1), keep the wide gap, left side (10) of 3～5mm between adjacent 2 left stays (1), strut the head setting and interlaced 3 the right stays (2) of 4 left stays (1) of bar (4) on the right side; It is characterized in that: the left crotch (11) of 1 opening towards a left side is set on the top of each left stay (1); The right crotch (21) of 1 opening towards the right side is set on the top of each right stay (2).
2. mastoid retractor according to claim 1 is characterized in that: the cross section of described left crotch (11) is with the cross section of left stay (1), and the cross section of described right crotch (21) is with the cross section of right stay (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201791134U CN202086655U (en) | 2011-05-31 | 2011-05-31 | Mastoid retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201791134U CN202086655U (en) | 2011-05-31 | 2011-05-31 | Mastoid retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202086655U true CN202086655U (en) | 2011-12-28 |
Family
ID=45361756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201791134U Expired - Fee Related CN202086655U (en) | 2011-05-31 | 2011-05-31 | Mastoid retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202086655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445909A (en) * | 2013-09-09 | 2013-12-18 | 重庆西南医院 | External auditory canal flap protector used in middle ear operation |
-
2011
- 2011-05-31 CN CN2011201791134U patent/CN202086655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445909A (en) * | 2013-09-09 | 2013-12-18 | 重庆西南医院 | External auditory canal flap protector used in middle ear operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20120531 |