CN208435744U - A kind of centreless puncture outfit - Google Patents
A kind of centreless puncture outfit Download PDFInfo
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- CN208435744U CN208435744U CN201721892557.6U CN201721892557U CN208435744U CN 208435744 U CN208435744 U CN 208435744U CN 201721892557 U CN201721892557 U CN 201721892557U CN 208435744 U CN208435744 U CN 208435744U
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- piercing element
- shaft
- puncture
- centreless
- accommodation groove
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Abstract
A kind of centreless puncture outfit, including casing and puncture component.Described sleeve pipe includes accommodation groove, the puncture component includes the first piercing element and the second piercing element, first piercing element and second piercing element include shaft, the shaft is accommodated by the accommodation groove, so that first piercing element and second piercing element can be relative to sleeve pivots.Also, the accommodation groove can limit the pivot of the shaft not being expected to.
Description
Technical field
The utility model relates to a kind of centreless puncture outfits, belong to medical instruments field.
Background technique
Puncture outfit can establish access way, abdominal cavity be passed in and out for Minimally Invasive Surgery instrument, while providing gas passage, in abdominal cavity
Gaseous environment is established, inside to carry out inspection or surgical procedure.
Having core puncture outfit and centreless puncture outfit includes seal assembly and casing, mutually isostructural seal assembly, sealing group
Identical connection type between part and casing is applicable to centreless puncture outfit and has core puncture outfit.Centreless is worn in the utility model
Pierce the seal assembly of device with and the connection type of seal assembly and casing be documented in the patent Shen submitted before the applicant
Please be in file, including CN201710216813.8, CN201710216814.2 and 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 of coupling part between the puncture component and casing of centreless puncture outfit for
The performance of centreless puncture outfit has larger impact, pivot cannot be being generated in puncture process between puncture component and casing, into abdominal cavity
The pivot between puncture component and casing needs flexible afterwards.
Summary of the invention
The applicant proposes new centreless puncture outfit.
A kind of centreless puncture outfit, including casing and puncture component, described sleeve pipe include accommodation groove；The puncture component includes first
Piercing element and the second piercing element；First piercing element and second piercing element include shaft, the shaft
It is accommodated by the accommodation groove, so that first piercing element and second piercing element can be relative to sleeve pivots；
Also, the accommodation groove can limit the pivot of the shaft not being expected to.
The accommodation groove includes first part and second part, and the first part has the first width, and described second
Dividing has the second width, and second width is greater than first width.
Described sleeve pipe includes end, and the end is provided with rotary shaft rack and the accommodating sky positioned at the rotary shaft rack two sides
Between；Two sides of the rotary shaft rack are respectively arranged with the accommodation groove, and two accommodation grooves are backwards to setting.
The puncture component is generally conical, and first piercing element and the second piercing element are conical shaped
A part.
First piercing element includes tip, and the size of first piercing element is greater than second piercing element.
Generally slanting stress surface is provided on the inner wall of first piercing element and second piercing element.
Each piercing element includes two protrusions, from the opposite of two of each piercing element protrusions
Side each extend over out the shaft.
Each piercing element includes through slot, and the through slot prolongs from edge between the root of two protrusions with the protrusion
Contrary direction is stretched to extend.
The cross section of the shaft is ellipse.
Each piercing element includes two protrusions, from the opposite of two of each piercing element protrusions
Side each extend over out the shaft；Each accommodating space is for accommodating a protrusion.
It since puncture component is two-flap type, and cooperates between shaft and accommodation groove, therefore, centreless puncture outfit can make
It obtains puncture component to pivot flexibly, also may make and do not generate undesirable pivot between puncture component and casing.
Detailed description of the invention
Fig. 1 is the entirety of centreless puncture outfit；
Fig. 2 is centreless puncture outfit when puncture component is opened；
Fig. 3 is centreless puncture outfit when puncture component is opened and closed；
Fig. 4 is the cross-sectional view of centreless puncture outfit；
Fig. 5 is the exploded view of casing and puncture component；
Fig. 6 is the partial enlarged view in Fig. 4 at A；
Fig. 7 is the cooperation schematic diagram of shaft and accommodation groove.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings.It is practical at this
In novel description, 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 ",
The orientation or positional relationship of the instructions such as " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings.
The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot
It is construed as a limitation of the present invention.
As shown in Figure 1, centreless puncture outfit 100 includes casing 2 and puncture component 1.
Casing 2 is hollow pipe, is had a first end and a second end.The second end of casing 2 be connected with seal assembly 4 and by
Seal assembly 4 carries out selective sealing, and the opening and closing of gas circuit are controlled by valve 5.The structure and sealing of seal assembly 4, valve 5
The connection type of component 4 and casing 2, valve 5 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.First end is by puncturing
Part 1 is selectively unlocked or is closed.
Puncture component 1 includes the first piercing element 11 and the second piercing element 12, and the first piercing element 11 and second punctures member
Part 12 is flap-type structure.Puncture component 1 is generally conical, and the first piercing element 11 and the second piercing element 12 are substantially round
A part of taper.Since the first piercing element 11 includes tip 111, thus the size of the first piercing element 11 is greater than second and wears
Element 12 is pierced, as shown in Figures 1 to 5.The plane that line of demarcation between first piercing element 11 and the second piercing element 12 is constituted
Substantially with pass through tip 111 puncture component 1 centerline axis parallel but do not include puncture component 1 central axis, above-mentioned plane to
Second piercing element 12 deviates, so that the size of the first piercing element 11 is larger.Tip 111 is set to a puncture member
Part rather than tip is collectively formed by two piercing elements, the intensity of part where tip so can be improved, be conducive to exert a force to tip
And then it is conducive to puncture.It sets puncture component 1 to include the first piercing element 11 and the second piercing element 12, in this way, by puncture component 1
The whole pivot for becoming the first piercing element 11 and second 12 two components of piercing element relative to the pivot of casing 2, reduces
The resistance that need to be overcome when pivot improves the flexibility of pivot.On the inner wall of first piercing element 11 and the second piercing element 12
It may be provided with generally slanting stress surface (not shown), when instrument is inserted into, the top of instrument is worn by stress towards first
Pierce element 11 and the second piercing element 12 force.Stress surface can be plane or curved surface.
Puncture component 1 is pivotally attached with casing 2.
As shown in Figures 5 to 7, each piercing element (including the first piercing element 11 and second piercing element 12) includes two
A raised 112, shaft 113 is each extended over out from the opposite side of two protrusions 112.The central axis of two shafts 113 is total
Line.The cross section of shaft 113 is ellipse.
As shown in figure 5, casing 2 includes rotary shaft rack 21 and the accommodating space positioned at each 21 two sides of rotary shaft rack, altogether
Two rotary shaft racks 21 and four accommodating spaces.Accommodating space is used to accommodate the protrusion 112 of puncture component.Rotary shaft rack 21 and accommodating
Space is all set in the first end of casing 2.Rotary shaft rack 21 has the accommodation groove that shaft 113 is protruded into and accommodated for shaft 113
211.For convenient for shaft 113 is protruded into accommodation groove 211, each piercing element includes through slot 114, and through slot 114 is from two protrusions
Region between 112 root extends downwardly.Through slot 114 runs through the wall of piercing element.Due to the presence of through slot 114, when assembly
Two protrusions 112 can be broken into two with one's hands, increase the distance between two shafts 113, convenient for shaft 113 is protruded into accommodation groove 211.Shaft
Two sides of bracket 21 are respectively arranged with accommodation groove 211, and two accommodation grooves 211 of same rotary shaft rack 21 are backwards to setting.Such as
Shown in Fig. 7, the top of accommodation groove 211 has the first width W1, and lower part has the second width W2, and it is wide that the second width W2 is greater than first
Spend W1.First width W1 slightly larger than 113 elliptical periphery face of shaft short axle length and be less than elliptical periphery face long axis
Length, allow the top of accommodation groove 211 to accommodate shaft 113, while will limit shaft 113 on the top of accommodation groove 211
Interior rotation.Second width W2 is greater than the length of 113 elliptical periphery face long axis of shaft, and therefore, the lower part of accommodation groove 211 can be with
Shaft 113 is accommodated, while shaft 113 being allowed to rotate in the lower part of accommodation groove 211.
"upper" refers to that the direction towards seal assembly 4, "lower" refer to the direction towards puncture component 1.Institute as shown in Figure 1, Figure 2
Show, is "upper" along the direction of paper straight up, vertically downward direction is "lower".It is above-mentioned for "upper", "lower" direction
Definition is suitable for all components of centreless puncture outfit 100, including casing 2 and puncture component 1.
In the use process of centreless puncture outfit 100, there are three types of states for the tool of puncture component 1:
It is located in the top of accommodation groove 211 in the shaft 113 of first state, each piercing element of puncture component 1, due to holding
Limitation of the top of slot 211 for shaft 113 is set, the first piercing element 11 and the second piercing element 12 cannot be relative to casings
2 rotations.At this point, the first piercing element 11 and the second piercing element 12 are closed, the central axis of puncture component 1 and the center of casing 2
Axis is overlapped.When puncture, power that puncture component 1 is applied by stomach wall, opposite with direction of travel promotes the shaft of puncture component 1
113 are maintained in the top of accommodation groove 211 in puncture process, so that the first piercing element 11 and in puncture process
Two piercing elements 12 will not generate rotation.
After the completion of puncture, when instrument is inserted into casing 2 and stretches out from first end, with the first piercing element 11 and the second puncture member
Stress surface on the inner wall of part 12 abuts, due to limitation of the top for shaft 113 of accommodation groove 211, instrument and stress surface
Abutting will not make piercing element rotate, the continuing into of instrument will push the first piercing element 11 and the second piercing element 12 to
Lower movement, so that shaft 113 is moved to the lower part of accommodation groove 211 by the top of accommodation groove 211.At this point, puncture component 1 is in
Second state, it can the state of rotation.
With being further inserted into for instrument, instrument can slide on slanting stress surface, promote 11 He of the first piercing element
Second piercing element 12 is with shaft 113 is axis and is pivoted.Puncture component 1 after rotation is in the third state, as shown in Figure 2.This
When, the first end of casing 2 is turned on.It should be noted that opening angle in Fig. 2 is signal, the first piercing element 11 and the
The factors such as angle and the diameter of instrument that two piercing elements 12 open are related.
With the extraction of centreless puncture outfit 100, the outer surface and patient of the first piercing element 11 and the second piercing element 12
The hole wall of puncturing hole on body is in contact, it is generated make every effort to promote the first piercing element 11 and the second piercing element 12 is generated turn
Dynamic, so that the first piercing element 11 and the second piercing element 12 are close to each other and collapse, puncture component 1 is closed, so that puncturing
Part 1 and casing 2 are conllinear, are back to the second state by the third state, at this time can be by casing 2, puncture component 1 successively out of patient's body lumen
It extracts, realizes the separation of centreless puncture outfit 100 and patient body.After instrument is extracted, the effect of gravity is it is also possible that first wears
Thorn element 11 and the second piercing element 12 are close to each other and collapse.
Due to using shaft to connect between puncture component 1 and casing 2, the connection structure in pivoting process including shaft
The resistance for needing to overcome is smaller, thus the pivot of puncture component is more flexible.
It since puncture component is two-flap type, and cooperates between shaft and accommodation groove, therefore, piercing element pivots spirit
It is living, and do not generating undesirable pivot in puncture process between puncture component and casing.
Claims (10)
1. a kind of centreless puncture outfit, including casing and puncture component, which is characterized in that described sleeve pipe includes accommodation groove；The puncture
Part includes the first piercing element and the second piercing element；First piercing element and second piercing element include turning
Axis, the shaft are accommodated by the accommodation groove, so that first piercing element and second piercing element can be opposite
In sleeve pivots；Also, the accommodation groove can limit the pivot of the shaft not being expected to.
2. centreless puncture outfit as described in claim 1, which is characterized in that the accommodation groove includes first part and second
Point, the first part has the first width, and the second part has the second width, and second width is greater than described first
Width.
3. such as claim 1,2 described in any item centreless puncture outfits, which is characterized in that described sleeve pipe includes end, the end
Portion is provided with rotary shaft rack and the accommodating space positioned at the rotary shaft rack two sides；Two sides of the rotary shaft rack are set respectively
It is equipped with the accommodation groove, two accommodation grooves are backwards to setting.
4. centreless puncture outfit as described in claim 1, which is characterized in that the puncture component is generally conical, and described first
Piercing element and the second piercing element are a part of conical shaped.
5. such as claim 1,4 described in any item centreless puncture outfits, which is characterized in that first piercing element includes point
The size at end, first piercing element is greater than second piercing element.
6. centreless puncture outfit as described in claim 1, which is characterized in that first piercing element and described second punctures member
Generally slanting stress surface is provided on the inner wall of part.
7. centreless puncture outfit as described in claim 1, which is characterized in that each piercing element includes two protrusions,
The shaft is each extended over out from the opposite side of two protrusions of each piercing element.
8. centreless puncture outfit as claimed in claim 7, which is characterized in that each piercing element includes through slot, the through slot
Extend between the root of two protrusions along the direction opposite with the raised extending direction.
9. centreless puncture outfit as described in claim 1, which is characterized in that the cross section of the shaft is ellipse.
10. centreless puncture outfit as claimed in claim 3, which is characterized in that each piercing element includes two protrusions,
The shaft is each extended over out from the opposite side of two protrusions of each piercing element；Each accommodating is empty
Between for accommodate a protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892557.6U CN208435744U (en) | 2017-12-28 | 2017-12-28 | A kind of centreless puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892557.6U CN208435744U (en) | 2017-12-28 | 2017-12-28 | A kind of centreless puncture outfit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208435744U true CN208435744U (en) | 2019-01-29 |
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ID=65096149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721892557.6U Active CN208435744U (en) | 2017-12-28 | 2017-12-28 | A kind of centreless puncture outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208435744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965948A (en) * | 2017-12-28 | 2019-07-05 | 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 CN201721892557.6U patent/CN208435744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965948A (en) * | 2017-12-28 | 2019-07-05 | 江苏风和医疗器材股份有限公司 | A kind of centreless puncture outfit |
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