CN208799290U - A kind of minimally invasive Soft tissue cutting instrument of casing - Google Patents
A kind of minimally invasive Soft tissue cutting instrument of casing Download PDFInfo
- Publication number
- CN208799290U CN208799290U CN201820624689.9U CN201820624689U CN208799290U CN 208799290 U CN208799290 U CN 208799290U CN 201820624689 U CN201820624689 U CN 201820624689U CN 208799290 U CN208799290 U CN 208799290U
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- CN
- China
- Prior art keywords
- limiting tube
- soft tissue
- minimally invasive
- cutter
- cutting instrument
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- 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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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/320036—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes adapted for use within the carpal tunnel
Abstract
The utility model discloses a kind of minimally invasive Soft tissue cutting instrument of casing, it is characterised in that: including position-limiting tube, front and rear sides perforation, and sliding slot is provided on inner wall；Cutter is located in the position-limiting tube, moves back and forth relative to position-limiting tube, the front end of the cutter is provided with blade, for cutting；The middle and back of the cutter is provided with sliding block, and the sliding block and the sliding slot match, and sliding block is located in sliding slot；Sheath is connected with the position-limiting tube, and the front end of the sheath is provided with sheath head, and the sheath head is located at the front end of the cutter straight-line trajectory.Achieve the purpose that structure is simple, operation is convenient and there is cutting protection.
Description
Technical field
The utility model relates to the field of medical instrument technology, specially a kind of minimally invasive Soft tissue cutting instrument of casing.
Background technique
Card pressure limitation, conservative therapy and office are organized the formation of to part for after tenosynovitis and the damage of tendon suporting ligament at present
When portion's injection effect is not good enough, the ordinary operation used is loosened to cut, and surgical instrument usually combines conventional surgical instrument, or combines
The conventional surgical instrument of part mis instruments operates.Device design both domestic and external also focuses on mis instruments, however needs to combine
Conventional instrument or more than one piece instrumentation, there are certain redundancies on operation prepares.There is also use instrument during surgery simultaneously
It is not in place, cause to card press excessive tissue it is deep, the tissues such as cut wound tendon or ligament.
It is an object of the present invention to design minimally invasive Soft tissue cutting instrument, it is contemplated that operation can be completed by one man operation.Pass through
The cutting propulsion of casing plays cutting edge skin openings and passivity part protection incisxal edge and struts operating walk way；Make to avoid drag hook
With reduction soft tissue injury；The embodiment of the present application is recycled to carry out incision absent-mindedness to card pressure tissue, a variety of Cutting Edge Designs consider
Different cards press the anatomical structure around tissue, adjust conducive to the range of operation of instrument；The setting of sheath advantageously ensures that blade exists
When cutting operation, prevent mistake from cutting or excessively deep.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide for, structure is simple, operation is convenient and
Technical solution with cutting protection, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical solution to realize:
A kind of minimally invasive Soft tissue cutting instrument of casing, including
Position-limiting tube, front and rear sides perforation, and sliding slot is provided on inner wall；
Cutter is located in the position-limiting tube, moves back and forth relative to position-limiting tube, and the front end of the cutter is provided with blade,
For cutting；The middle and back of the cutter is provided with sliding block, and the sliding block and the sliding slot match, and sliding block is located at sliding slot
It is interior, for guaranteeing the linear reciprocating motion of cutter；
Sheath is connected with the position-limiting tube, and the front end of the sheath is provided with sheath head, and the sheath head is located at described cut
The front end of knife straight-line trajectory, for preventing cutter to the excessive deep of card pressure tissue.
As preferred: the tail end of the cutter is provided with connection position, is connected with force block in the connection position；It is described
Force block is located at the lateral surface of the position-limiting tube, and position-limiting tube is provided with loose slot relative to force block, and the loose slot runs through
The tube wall of position-limiting tube drives cutter linear reciprocating motion for force block in loose slot, and cuts while straight reciprocating motion
Knife linear reciprocating motion under force block drive, sheath head of getting along well always are in contact.Guarantee the sharp of blade.
As preferred: being provided with two groups and sliding slot more than two in the position-limiting tube, and described two groups and more than two
Sliding slot be angularly distributed relative to the inner wall circumference of position-limiting tube.
As preferred: the tail end of the position-limiting tube is connected with plug；The plug is closed by the tail end of position-limiting tube.
As preferred: it is connected with spring element between the plug and the cutter, for when cutter travels forward,
One resistance being gradually increased is provided.
As preferred: being connected with grip part on the outside of the tail end of the position-limiting tube, hold and use for manpower.
As preferred: the shape of the blade is the arc-shaped of evagination；The shape of the sheath head and the shape phase of blade
Cooperation is the arc-shaped of indent.Realize that cutting edge is stablized unbiased in progradation.
As preferred: the shape of the blade is the arc-shaped of indent；The shape of the sheath head and the shape phase of blade
Cooperation is the arc-shaped of evagination.Suitable for destination organization proximal end without important row or diagonal structure, and notch proximal end is loosened
Based on cutting.
As preferred: the shape of the blade is the circular arc splicing of two evaginations, and in the tie point of two evagination circular arcs
It is recessed；The shape of the sheath head and the shape of blade match.Suitable for destination organization proximal end, there are rows or diagonal important set
It knits, or loosens based on distal end portion.
As preferred: being connected with locating part on the side wall of the position-limiting tube, protrude into depth for limit cutting device
Degree.
As shown from the above technical solution, the beneficial effects of the utility model are:
When cutting blocks pressure tissue, since the anti-cut ability of card pressure tissue itself is different, in ecto-entad cutting, come from
The advantages of resistance of card pressure tissue can constantly change, spring element is arranged is that auxiliary user receives power in time, prevents from excessively cutting
It cuts；
The various shapes of blade and sheath head are conducive to carry out specific aim operation for different card pressure tissues；
Cutter hub is located in position-limiting tube, by the cooperation of sliding block and sliding slot, is conducive to the stable linear motion of cutter hub, reduces knife
Body shaking that may be present guarantees to stablize cooperation between blade and sheath head.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the minimally invasive Soft tissue cutting instrument of casing of the utility model；
Fig. 2 is a kind of cross-sectional view of the minimally invasive Soft tissue cutting instrument of casing of the utility model；
Fig. 3 is the structural schematic diagram of blade and sheath in the utility model embodiment one；
Fig. 4 is the structural schematic diagram of blade and sheath in the utility model embodiment two；
Fig. 5 is the structural schematic diagram of blade and sheath in the utility model embodiment three；
Fig. 6 is the structural schematic diagram of the utility model embodiment four.
Appended drawing reference: 1, cutter；11, blade；12, sliding block；13, connection position；14, door；2, sheath；21, sheath head；3,
Position-limiting tube；31, loose slot；32, sliding slot；33, plug；4, grip part；5, force block；6, spring element；7, locating part.
Specific embodiment
According to Fig. 1 to Fig. 6:
Embodiment one
A kind of minimally invasive Soft tissue cutting instrument of casing, including position-limiting tube 3, front and rear sides perforation, and cunning is provided on inner wall
Slot 32；Cutter 1 is located in the position-limiting tube 3, moves back and forth relative to position-limiting tube 3, the front end of the cutter 1 is provided with blade
11, for cutting；The middle and back of the cutter 1 is provided with sliding block 12, and the sliding block 12 and the sliding slot 32 match, and sliding block
12 are located in sliding slot 32, for guaranteeing the linear reciprocating motion of cutter 1；Sheath 2 and the position-limiting tube 3 connect, the sheath 2
Front end be provided with sheath head 21, the sheath head 21 is located at the front end of 1 straight-line trajectory of cutter, for preventing cutter
1 pair of card presses the excessive deep of tissue.The position-limiting tube 3 and sheath 2 are integral or seperated connection.
The front end of the cutter 1, which is also connected with, is provided with door 14, and the part of the door 14 is located at 11 front end of blade, protection
Blade 11 prevents from accidentally cutting.
The tail end of the cutter 1 is provided with connection position 13, is connected with force block 5 in the connection position 13；It is described by
Power block 5 is located at the lateral surface of the position-limiting tube 3, and position-limiting tube 3 is provided with loose slot 31, the loose slot relative to force block 5
31 run through the tube wall of position-limiting tube 3, drive cutter 1 reciprocal straight while straight reciprocating motion in loose slot 31 for force block 5
Line movement, and the linear reciprocating motion under the drive of force block 5 of cutter 1, sheath head 21 of getting along well always are in contact.Guarantee blade 11
It is sharp.
Two groups and sliding slot 32 more than two, and described two groups and sliding slot more than two are provided in the position-limiting tube 3
32 are angularly distributed relative to the inner wall circumference of position-limiting tube 3.
The tail end of the position-limiting tube 3 is connected with plug 33；The plug 33 is closed by the tail end of position-limiting tube 3.It is described
Spring element 6 is connected between plug 33 and the cutter 1, for one being provided and being gradually increased when cutter 1 travels forward
Resistance.
It is connected with grip part 4 on the outside of the tail end of the position-limiting tube 3, holds and uses for manpower.
The shape of the blade 11 is the arc-shaped of evagination；The shape of the sheath head 21 and the shape of blade 11 match
It closes, is the arc-shaped of indent.Realize that cutting edge is stablized unbiased in progradation.
Embodiment two
On the basis of example 1, change the shape of blade 11 and sheath head 21, the shape of the blade 11 is indent
It is arc-shaped；The shape of the sheath head 21 and the shape of blade 11 match, and are the arc-shaped of evagination.Suitable for destination organization
Proximal end is without important row or diagonal structure, and notch proximal end is loosened based on cutting.
Embodiment three
On the basis of example 1, change the shape of blade 11 and sheath head 21, the shape of the blade 11 is two
The circular arc of evagination splices, and the tie point indent of two evagination circular arcs；The shape of the sheath head 21 and the shape phase of blade 11
Cooperation.Suitable for destination organization proximal end, there are rows or diagonal vital tissue, or loosen based on distal end portion.
Example IV
On the basis of embodiment one, two or three, it is connected with locating part 7 on the side wall of the position-limiting tube 3, for limiting
That determines cutting device protrudes into depth.
The above is only the preferred embodiment of the utility model, and all orientation such as front and back up and down retouches in text
It states and is merely convenient of understanding, be not the restriction to product actual use, the protection scope of the utility model is not limited merely to
Embodiment is stated, technical solution belonging to the idea of the present invention belongs to the protection scope of the utility model.It should be pointed out that
For those skilled in the art, several improvement without departing from the principle of the utility model and profit
Decorations, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of minimally invasive Soft tissue cutting instrument of casing, it is characterised in that: including
Position-limiting tube, front and rear sides perforation, and sliding slot is provided on inner wall；
Cutter is located in the position-limiting tube, moves back and forth relative to position-limiting tube, the front end of the cutter is provided with blade, is used for
Cutting；The middle and back of the cutter is provided with sliding block, and the sliding block and the sliding slot match, and sliding block is located in sliding slot；
Sheath is connected with the position-limiting tube, and the front end of the sheath is provided with sheath head, and it is straight that the sheath head is located at the cutter
The front end of line motion profile.
2. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the tail end of the cutter
It is provided with connection position, is connected with force block in the connection position；The force block is located at the lateral surface of the position-limiting tube, and
Position-limiting tube is provided with loose slot relative to force block, and the loose slot runs through the tube wall of position-limiting tube.
3. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: set in the position-limiting tube
It is equipped with two groups and sliding slot more than two, and the inner wall circumference isogonism of described two groups and sliding slot more than two relative to position-limiting tube
Degree distribution.
4. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the tail of the position-limiting tube
End is connected with plug；The plug is closed by the tail end of position-limiting tube.
5. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 4, it is characterised in that: the plug and described
Spring element is connected between cutter.
6. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the tail of the position-limiting tube
End outside is connected with grip part.
7. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the shape of the blade
For the arc-shaped of evagination；The shape of the sheath head and the shape of blade match, and are the arc-shaped of indent.
8. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the shape of the blade
For the arc-shaped of indent；The shape of the sheath head and the shape of blade match, and are the arc-shaped of evagination.
9. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the shape of the blade
Splice for the circular arc of two evaginations, and the tie point indent of two evagination circular arcs；The shape of the sheath head and the shape of blade
It matches.
10. the minimally invasive Soft tissue cutting instrument of a kind of casing according to claim 1, it is characterised in that: the position-limiting tube
Locating part is connected on side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624689.9U CN208799290U (en) | 2018-04-27 | 2018-04-27 | A kind of minimally invasive Soft tissue cutting instrument of casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624689.9U CN208799290U (en) | 2018-04-27 | 2018-04-27 | A kind of minimally invasive Soft tissue cutting instrument of casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208799290U true CN208799290U (en) | 2019-04-30 |
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ID=66224754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820624689.9U Active CN208799290U (en) | 2018-04-27 | 2018-04-27 | A kind of minimally invasive Soft tissue cutting instrument of casing |
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| Country | Link |
|---|---|
| CN (1) | CN208799290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946635A (en) * | 2019-12-05 | 2020-04-03 | 郑州大学第一附属医院 | Stripper |
-
2018
- 2018-04-27 CN CN201820624689.9U patent/CN208799290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110946635A (en) * | 2019-12-05 | 2020-04-03 | 郑州大学第一附属医院 | Stripper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201228 Address after: 316000 room 1601, 16th floor, Putuo international health industry center, building 3, Putuo national fitness center, 1055 Haiyin Road, Donggang street, Putuo District, Zhoushan City, Zhejiang Province (in the pilot Free Trade Zone) Patentee after: Zhejiang Free Trade Zone Jacob International Trade Co.,Ltd. Address before: 315000 No.59 Liuting street, Ningbo City, Zhejiang Province Patentee before: NINGBO FIRST Hospital |
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| TR01 | Transfer of patent right |