CN109662759A - A kind of centreless puncture outfit - Google Patents
A kind of centreless puncture outfit Download PDFInfo
- Publication number
- CN109662759A CN109662759A CN201711468696.0A CN201711468696A CN109662759A CN 109662759 A CN109662759 A CN 109662759A CN 201711468696 A CN201711468696 A CN 201711468696A CN 109662759 A CN109662759 A CN 109662759A
- Authority
- CN
- China
- Prior art keywords
- intersection
- puncture
- puncture tip
- centreless
- puncture outfit
- 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 210000003815 abdominal wall Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
Abstract
The invention discloses a kind of centreless puncture outfits, including casing, puncture tip and connection structure, and the accommodating space to accommodate connection structure is formed on casing and puncture tip；Connection structure includes top, lower part and intersection, and top is attached to the bottom surface of accommodating space, and lower part is attached to the bottom surface of accommodating space, and between top and lower part, intersection is detached from the bottom surface of accommodating space intersection；When puncture tip does not rotate relative to casing, the plane where the binding face of the end of the end and casing of puncture tip intersects with intersection.The connection structure of centreless puncture outfit of the invention enables to the pivot of puncture tip flexible, and in instrument insertion, puncture tip is easy to open, and when puncture outfit is extracted, puncture tip is easy to close.
Description
Technical field
The present invention relates to a kind of centreless puncture outfits, belong to medical instruments field.
Background technique
Puncture outfit can establish into channel, enter body cavity for Minimally Invasive Surgery instrument, while providing gas passage, in body cavity
Gaseous environment is established, inside to carry out inspection or surgical procedure.Body cavity includes abdominal cavity.
Having core puncture outfit and centreless puncture outfit includes seal assembly and casing, and mutually isostructural seal assembly and casing can
Suitable for centreless puncture outfit and there is core puncture outfit.In the present invention seal assembly of centreless puncture outfit with and seal assembly and casing
Connection type be documented in the patent application document submitted before the applicant, including CN201710216813.8,
CN201710216814.2、CN201710299930.5。
The applicant before have submitted the several parts of applications for a patent for invention about centreless puncture outfit, as CN106333734A,
CN106377302A and CN106333733A etc..The structure pair of coupling part between the puncture tip and casing of centreless puncture outfit
There is larger impact in the performance of puncture outfit.
Summary of the invention
The applicant proposes new centreless puncture outfit, and including new connection structure, connection structure is for puncture tip and set
The connection of pipe.
A kind of centreless puncture outfit, the centreless puncture outfit includes casing, puncture tip and connection structure, described in accommodating
The accommodating space of connection structure is formed in described sleeve pipe and the puncture tip；The connection structure include top, lower part and
Intersection, the top are attached to the bottom surface of the accommodating space, and the lower part is attached to the bottom surface of accommodating space, the boundary
Between the top and the lower part, the intersection is detached from the bottom surface of accommodating space at place；The puncture tip is opposite
When described sleeve pipe does not rotate, plane where the binding face of the end of the end and described sleeve pipe of the puncture tip with it is described
Intersection intersection.
The end face of the end of described sleeve pipe and the central axis of described sleeve pipe are perpendicular；The end is circle.
The end face of the end of the puncture tip and the central axis of the puncture tip are perpendicular；The end is
It is round.
The attachment is bonding.
The inner wall of the puncture tip is provided with stress surface, and the stress surface is plane or curved surface.
The connection structure is integrally formed.
The first recess, the outer peripheral surface of the end of the puncture tip are formed on the outer peripheral surface of the end of described sleeve pipe
On be formed with the second recess, the accommodating space is collectively formed in first recess and second recess.
The top is attached to the bottom surface of first recess, and the lower part is attached to the bottom surface of second recess.
The length of the intersection is less than the length on the top, and the length of the intersection is less than the length of the lower part
Degree.
The length on the top is the length of the lower part and the sum of the length of the intersection.
The thickness of the intersection is less than the thickness on the top, and the thickness of the intersection is less than the thickness of the lower part
Degree.
The connection structure of centreless puncture outfit enables to the pivot of puncture tip flexible, and in instrument insertion, puncture tip is easy
In unlatching, when puncture outfit is extracted, puncture tip is easy to close.
Detailed description of the invention
Fig. 1 is the front schematic view of centreless puncture outfit；
Fig. 2 is the side schematic view of centreless puncture outfit；
Fig. 3 is the side schematic view of centreless puncture outfit when puncture tip is opened；
Fig. 4 is the schematic top plan view of centreless puncture outfit when puncture tip is opened；
Fig. 5 is the schematic diagram of connection structure；
Fig. 6 is the enlarged diagram of connection structure；
Fig. 7 is the cross-sectional view of connection structure when puncture tip is opened.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.It is retouched in of the invention
In stating, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axis
To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for solving
The present invention is released, and is not considered as limiting the invention.
As shown in Figure 1, centreless puncture outfit 100 includes seal assembly 3, casing 2, puncture tip 1 and connection structure 4.
Casing 2 is hollow pipe, with first end 21 and second end.The second end of casing 2 is selected by seal assembly 3
Property sealing, first end 21 selectively unlocks or is closed by puncture tip 1.The structure and seal assembly 3 and casing of seal assembly 3
2 connection type has been documented in the patent application document submitted before the applicant, including CN201710216813.8,
CN201710216814.2, CN201710299930.5, this will not be repeated here.
As shown in Figure 2,3, puncture tip 1 includes first end, second end, middle part and sword.First end is tip, second end
Shape it is identical as the shape of first end 21 of casing 2, the present embodiment is preferably circular.It is intermediate between first end and second end
The outer surface in portion, middle part is smooth convex outward, also, sword is provided on the outer surface of middle part.Preferably, puncture tip
The end face of the second end at end 1 and the central axis of puncture tip 1 are perpendicular.
Puncture tip 1 is pivotally attached with casing 2.
Specifically, as shown in Figures 5 to 7, the first recess, puncture tip are formed on the outer peripheral surface of the first end 21 of casing 2
The second recess is formed on the outer peripheral surface of the second end at end 1, the first recess and the second recess are collectively formed for accommodating connection knot
The accommodating space of structure 4, so that outer peripheral surface of the connection structure 4 without departing from casing 2 and puncture tip 1, so that connection structure 4 is in centreless
Puncture outfit 100 with abdominal wall into and out of will not interfere during abdominal wall.Connection structure 4 includes top 41 and lower part 42,
Top 41 is attached to the bottom surface of the first recess, and lower part 42 is attached to the friendship of the bottom surface of the second recess, top and lower part by them
43 are connected at boundary, and intersection 43 is detached from the bottom surface of accommodating space, and top 41, lower part 42 and intersection 43 are integrally formed.It is " de-
From in " be meant that intersection 43 is not attached to the bottom surface of accommodating space and has with the bottom surface of accommodating space with a distance from.Such as Fig. 6 institute
Show, the length of lower part 42 is less than the length on top 41, the length of the length of lower part 42 again smaller than lower part 42, also, top 41
The length of length+intersection 43 of length=lower part 42.Further genralrlization, when puncture tip 1 does not rotate, the of puncture tip 1
Intersect with the plane where the binding face of the first end 21 of casing 2 with intersection 43 at two ends.If a little settings are in order to enable wearing
The second end of puncture tip 1 and the first end 21 of casing 2 fit when puncture tip end 1 does not rotate relative to casing 2.Has a fixed length
The intersection 43 of degree can have certain intensity.When puncture tip 1 is rotated relative to casing 2, intersection is the axis of rotation.
The thickness of intersection 43 is less than the thickness on top 41, and the thickness of intersection 43 is less than the thickness of lower part 42, and intersection 43 is lesser
The resistance for 43 material of the intersection deformation that thickness makes puncture tip 1 need to overcome in rotation is smaller, so that 1 turn of puncture tip
It is dynamic flexible.Meanwhile the length of intersection 43 ensure that necessary bonding strength between puncture tip 1 and casing 2, intersection 43 is not
It can be broken, puncture tip 1 will not be separated with casing 2.The concrete mode of attachment can be bonding.As shown in Figure 1, casing 2 is located at
The top of puncture tip 1, puncture tip 1 are located at the lower section of casing 2, illustrate "upper" and "lower" with this.On the length on top 41 is
Along the size of the central axial direction of centreless puncture outfit 100, the length of lower part 42 is lower part 42 along centreless puncture outfit 100 in portion 41
The size of central axial direction, the length of intersection 43 are ruler of the intersection 43 along the central axial direction of centreless puncture outfit 100
It is very little.The thickness on top 41, lower part 42 and intersection 43 is them along perpendicular with the central axial direction of centreless puncture outfit 100
The size of radial direction.When puncture tip 1 does not rotate relative to casing 2, the central axis and puncture tip of centreless puncture outfit 100
Central axis, the central axis of casing 2 at end 1 are conllinear.
Stress surface is provided on the inner wall of the middle part of puncture tip 1.When instrument is inserted into, the top of instrument passes through stress surface
It exerts a force to puncture tip 1, so that puncture tip 1 is rotated using the intersection on the top of connection structure and lower part as axis, in turn
So that the first end 21 of casing 2 is opened, instrument be can be inserted into the body cavity of patient.Stress surface can be plane or curved surface.
After puncture tip 1 enters body cavity, by gravity, it may be rotated by axis of intersection.Due to gravity
Effect usually the rotation of puncture tip 1 will not be made complete, i.e. the first end 21 of casing 2 will not be fully opened, at this point, insert
The instrument entered exerts a force to puncture tip 1, and in addition to stress surface, the position of 1 stress of puncture tip is also likely to be its second end, so that
Puncture tip 1 further rotates, and thus the first end 21 of casing 2 is turned on completely.If puncture tip 1 enter body cavity after,
It is not rotated by axis of intersection, then the instrument that can use insertion exerts a force to puncture tip 1 so that puncture tip 1
It rotates and realizes that the first end 21 of casing 2 is turned on completely.
Puncturing hole with the extraction of centreless puncture outfit 100, on the outer surface and patient body of the middle part of puncture tip 1
Hole wall be in contact, it is generated make every effort to promote so that puncture tip 1 is generated rotation, puncture tip 1 closes the first end 21 of casing 2,
So that puncture tip 1 and casing 2 are conllinear, casing 2, puncture tip 1 can successively be extracted out of patient's body lumen, realize centreless
The separation of puncture outfit 100 and patient body.
It is connected due to using connection structure 4 between puncture tip 1 and casing 2, connection structure 4 needs during rotation
The resistance overcome is smaller, thus the rotation of puncture tip is more flexible.
Claims (11)
1. a kind of centreless puncture outfit, the centreless puncture outfit includes casing, puncture tip and connection structure, which is characterized in that is used
It is formed in described sleeve pipe and the puncture tip with accommodating the accommodating space of the connection structure；The connection structure includes upper
Portion, lower part and intersection, the top are attached to the bottom surface of the accommodating space, and the lower part is attached to the bottom of accommodating space
Face, between the top and the lower part, the intersection is detached from the bottom surface of accommodating space the intersection；It is described to wear
When puncture tip end does not rotate relative to described sleeve pipe, where the binding face of the end of the end and described sleeve pipe of the puncture tip
Plane intersects with the intersection.
2. centreless puncture outfit as described in claim 1, which is characterized in that the end face of the end of described sleeve pipe and the set
The central axis of pipe is perpendicular；The end is circle.
3. centreless puncture outfit as described in claim 1, which is characterized in that the end face of the end of the puncture tip and institute
The central axis for stating puncture tip is perpendicular；The end is circle.
4. centreless puncture outfit as described in claim 1, which is characterized in that the attachment is bonding.
5. centreless puncture outfit as described in claim 1, which is characterized in that the inner wall of the puncture tip is provided with stress surface,
The stress surface is plane or curved surface.
6. centreless puncture outfit as described in claim 1, which is characterized in that the connection structure is integrally formed.
7. centreless puncture outfit as described in claim 1, which is characterized in that formed on the outer peripheral surface of the end of described sleeve pipe
There is the first recess, the second recess, first recess and described second are formed on the outer peripheral surface of the end of the puncture tip
The accommodating space is collectively formed in recess.
8. centreless puncture outfit as claimed in claim 7, which is characterized in that the top is attached to the bottom of first recess
Face, the lower part are attached to the bottom surface of second recess.
9. centreless puncture outfit as described in claim 1, which is characterized in that the length of the intersection is less than the length on the top
Degree, the length of the intersection are less than the length of the lower part.
10. centreless puncture outfit as claimed in claim 9, which is characterized in that the length on the top is the length of the lower part
The sum of with the length of the intersection.
11. centreless puncture outfit as described in claim 1, which is characterized in that the thickness of the intersection is less than the top
Thickness, the thickness of the intersection are less than the thickness of the lower part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017109588493 | 2017-10-16 | ||
| CN201710958849 | 2017-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109662759A true CN109662759A (en) | 2019-04-23 |
Family
ID=66141567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711468696.0A Pending CN109662759A (en) | 2017-10-16 | 2017-12-28 | A kind of centreless puncture outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109662759A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040230217A1 (en) * | 2003-05-15 | 2004-11-18 | O'heeron Peter T. | Offset trocar piercing tip |
| CN106344126A (en) * | 2016-10-08 | 2017-01-25 | 江苏风和医疗器材有限公司 | Core-free puncture outfit |
| CN106377302A (en) * | 2016-10-08 | 2017-02-08 | 江苏风和医疗器材有限公司 | Core-less puncture outfit |
| CN106388912A (en) * | 2016-10-08 | 2017-02-15 | 江苏风和医疗器材有限公司 | Core-free puncturing device |
| CN208065248U (en) * | 2017-10-16 | 2018-11-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
-
2017
- 2017-12-28 CN CN201711468696.0A patent/CN109662759A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040230217A1 (en) * | 2003-05-15 | 2004-11-18 | O'heeron Peter T. | Offset trocar piercing tip |
| CN106344126A (en) * | 2016-10-08 | 2017-01-25 | 江苏风和医疗器材有限公司 | Core-free puncture outfit |
| CN106377302A (en) * | 2016-10-08 | 2017-02-08 | 江苏风和医疗器材有限公司 | Core-less puncture outfit |
| CN106388912A (en) * | 2016-10-08 | 2017-02-15 | 江苏风和医疗器材有限公司 | Core-free puncturing device |
| CN208065248U (en) * | 2017-10-16 | 2018-11-09 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
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