Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide a kind of reasonable in design, structure reliably, to patient is damaged
Small puncture core assembly and the puncture outfit with it, the present invention is achieved by the following technical solutions:
A kind of puncture core assembly, comprising: puncture core bar;Cutting tip, the rear end of the cutting tip are connected on the puncture core
The front end of bar;At least one separated structure, the separated structure are located on the outer wall of the cutting tip;The separated structure includes
At least one first surface and at least one second face, the outer wall of the first surface and the cutting tip is smoothly connected, described
Cutting edge is formed between first surface and second face.
The cutting tip is integrally formed or is fixedly connected with the puncture core bar.
The separated structure is integrally formed or is fixedly connected with the cutting tip.
The first surface is arc, i.e. the outer wall of the first arcwall face, first arcwall face and the cutting tip is smooth
Connection.
Second face is plane.
Second face is curved surface.
The puncture core assembly includes at least one described separated structure.
The whole maximum width of the cutting tip and the separated structure is less than or equal to the diameter for puncturing core bar.
The length of the separated structure is less than or equal to the length of the cutting tip.
The vertex of the cutting tip is curved surface.
Further, the vertex of the cutting tip is spherical surface.
The edge line general parallel orientation of the connecting line and the separated structure of the separated structure and the cutting tip.
The present invention also provides a kind of puncture outfits, including puncture core assembly above-mentioned.
A kind of puncture core assembly of the invention and the puncture outfit with it, easily operated, structure is reliable, on the one hand, separation
Structure one-way chorista, when can effectively reduce puncture, cutting edge is injured caused by patient wound;On the other hand, enhancing is worn
The intensity of cutting edge is pierced, cutting edge is punctured and is not easy to deform, cutting edge is effectively prevent to be broken the unexpected injury caused by patient.Shorten operation
Time improves procedure efficiency.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " item ", "bottom", "inner", "outside", " axis
To ", " radial direction ", " circumferential direction ", the orientation or positional relationship of the instructions such as " reciprocal " be to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
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 be used to explain the present invention, and cannot understand
For limitation of the present invention.
As shown in Figure 1 to Figure 2, in the prior art, the separated structure 30 of cutting tip 20 is generally sheet-like structure, separation knot
Two faces 310,320 of structure 30 are plane, and two planes are parallel to each other, and the distance of two interplanars, which is less than, punctures core bar
Wall thickness, the edge of separated structure 30 are in sharp cutting edge 330;On the one hand, reciprocating rotation puncture outfit when puncture, sharp cutting edge
330 reciprocating direction Shi Junhui injured patient wound;On the other hand, the sheet-like structure of separated structure 30, intensity is low, variable
Shape, easy fracture cause unexpected injury to patient, influence being normally carried out for operation.As shown in Figure 1, cutting tip 20 and puncture core bar
10 are fixedly connected for two components, and the diameter of cutting tip 20 is greater than the diameter for puncturing core bar 10.
As shown in Figures 3 to 5, the puncture core assembly 100 of the embodiment of the present invention, comprising: puncture core bar 1, cutting tip 2 divides
From structure 3.Puncture core bar 1 is hollow circular-tube;Cutting tip 2 substantially refers to cutting tip 2 in circular cone substantially in cone in cone
Shape or similar cone, i.e., the bus of cutting tip 2 can be linear, can also be in convex outer curve or the curve in indent.It wears
The rear end of barbed end 2 be connected on puncture core bar 1 front end, cutting tip 2 and puncture core bar 1 be integrally formed, alternatively, cutting tip 2 with wear
Thorn core bar 1 is two independent components, and the rear end of cutting tip 2 is fixed together with the front end for puncturing core bar 1.Cutting tip 2
Maximum gauge be equal to the diameter for puncturing core bar 1, the integrated molding of separated structure 3 and cutting tip 2 or be fixedly connected, such puncture
100 structure of core assembly is reliable, conducive to puncturing and can guarantee good leakproofness.Separated structure 3 is located on the outer wall of cutting tip 2,
Including following scenario described: separated structure 3 and cutting tip 2 are integrally formed, alternatively, separated structure 3 as an independent component with wear
Barbed end 2 is fixedly connected.At least one side of separated structure 3 is first surface 31, and first surface 31 and the outer wall of cutting tip 2 smoothly connect
It connects.Further, at least one side of separated structure 3 is the first arcwall face 31, and the outer wall of the first arcwall face 31 and cutting tip 2 is smooth
Connection.As shown in Figures 4 to 7, in cross-sectional view, separated structure 3 include the first lines 33 (i.e. cutting edge 33) and the second lines 34,
Second lines 34 of separated structure 3 can be located at any position on 2 outer wall of cutting tip, the first lines 33 of separated structure 3 with
It is the first arcwall face 31 of nature transition between second lines 34, surface is smooth;In this way when puncturing, doctor's reciprocating rotary is punctured
When device, when rotating to Fig. 4 or left-hand shown in fig. 5, the first arcwall face 31 will not injured patient's wound when contacting with wound.The
Cutting edge, including following scenario described are formed between one curved surface 31 and the second face 32: first surface 31 is directly intersected with face 32, forms sword
Mouthful;Between the two by least one other face formed cutting edge, that is, first surface 31 intersects with other faces, face 32 with it is same or
Another other face intersections, other faces and first surface 31 or the second face 32 are crossed to form cutting edge, and cutting edge may also be formed in two
Between other faces.
As shown in Figures 4 to 7, the another side 32 of separated structure 3 is plane, and plane 32 is formed with 31 intersection of first surface
Cutting edge 33, cutting edge 33 can be with cutting edge at an acute angle (as shown in Fig. 4 or Fig. 5) or right angle cutting edges (as shown in Figure 6) or obtuse angle sword
Mouth (as shown in Figure 7).The central axis for puncturing core assembly 100 is located in the plane at 32 place of plane, or punctures core assembly 100
Central axis is parallel with the plane where plane 32.First arcwall face 31 be nature transition cambered surface, can tissue separation after with
Wound is in close contact, the leakproofness remained intact.When turning left as shown in Fig. 4 or Fig. 5, it will not be damaged in rotary course
Patient tissue;It, can be during rotation for the plane 32 on vertex with cutting edge 33 when being rotated to right shown in Fig. 4 or Fig. 5
Unidirectional chorista, to guarantee that puncture outfit can smoothly enter into patient's body.
As shown in figure 5, the another side of separated structure 3 may be the second curved surface 32, the second curved surface 32 and first surface 31
Intersection forms cutting edge 33.Second curved surface 32 can be the curved surface of indent, or the curved surface of evagination.Cutting edge 33 can be in sharp
Angle cutting edge (as shown in Fig. 4 or Fig. 5) or right angle cutting edge (as shown in Figure 6) or obtuse angle cutting edge (as shown in Figure 7).Separated structure
There is the first arcwall face 31 between 3 the first lines 33 (i.e. cutting edge 33) and the second lines 34, the first arcwall face 31 is nature transition
Cambered surface, can be in close contact after tissue separation with wound, the leakproofness remained intact, and will not being damaged in rotary course
Patient tissue can be in the mistake of rotation for second curved surface 32 on vertex with cutting edge 33 when rotating to right shown in Fig. 4 or Fig. 5
Unidirectional chorista in journey, to guarantee that puncture outfit can smoothly enter into patient's body;Also, after the second curved surface 32 can reduce separation
The resistance contacted is organized, chorista is conducive to.
Doctor holds the rear end for puncturing core assembly 100, and when puncture, reciprocating rotation puncture outfit and punctures core at the palm of doctor
Component 100 is opposing stationary, and the angle of puncture outfit rotation is 0 °~180 °, to reach optimal separation effect, on the outer wall of cutting tip 2
The cutting tip of puncture outfit is penetrated into patient's body to guarantee to efficiently separate tissue at least one separated structure 3.As excellent
Choosing, there are two separated structure 3 on the outer wall of cutting tip 2, according to the size of cutting edge and the taper situation of cutting tip, cutting tip 2
It can be there are two the above separated structure 3, to meet chorista effect on outer wall.
The whole maximum width of cutting tip 2 and separated structure 3 is less than or equal to the diameter for puncturing core bar 1, herein width side
To the diametrical direction referred to along puncture core bar 3.Separated structure 3 is integrally formed or is fixedly connected with the outer wall of cutting tip 2, that is,
It says, the sum of cone diameter and the width of separated structure 3 of cutting tip 2 are less than or equal to the diameter for puncturing core bar 1, the set of puncture outfit
The diameter of pipe is slightly larger than the diameter for puncturing core bar 1;The casing of puncture outfit is able to satisfy puncture as long as it can accommodate puncture core bar 1 in this way
End 2 passes through the casing of puncture outfit.Separated structure 3 is integrally formed or is fixedly connected with the outer wall of cutting tip 2, and cutting tip 2 is
Substantially open circles taper, the maximum gauge of conical bottom are equal to the diameter for puncturing core bar 1, and the maximum in order to guarantee cutting tip 2 is wide
Degree is less than or equal to the diameter for puncturing core bar 1, and the length of separated structure 3 is less than the length of cutting tip 2, and length direction refers to edge herein
Puncture the axial direction of core bar 3.Specifically, on outer wall at the conical bottom maximum gauge of cutting tip 2 separated structure 3 width
Degree is 0, both ensure that puncturing core bar 1 and cutting tip 2 passes through puncture outfit casing tube in this way, in turn ensures and puncture core bar 1 and wear
Pierce good leakproofness between the casing of device.
If the endpoint of cutting tip 2 is tip, when cutting tip 2 penetrates patient skin, if continuing to puncture, tip is easily stabbed
Patient organ brings unexpected pain to patient, increases operating difficulty and safety, and the endpoint of cutting tip 2 of the invention is song
Face shape is not only able to satisfy puncture and requires, but also can effectively prevent endpoint and easily stab patient organ.Further, the endpoint of cutting tip 2 is
Spheric.
Separated structure 3 and the connecting line of cutting tip 2 and the edge line general parallel orientation of separated structure, general parallel orientation separate knot
The width of structure 3 is essentially equal always or roughly equal.When puncture, doctor is general first to scratch a small notch in patient abdomen, then
The vertex 21 of cutting tip 2 is directed to the downward reciprocating rotation puncture outfit of small notch scratched, the width of separated structure 3 complete phase always
Deng or it is roughly equal, can make in entire puncture process, organize the effect that unidirectionally separates identical.
The present invention also provides a kind of puncture outfit, any puncture core assembly 100 including above-described embodiment description.
In conclusion a kind of puncture core assembly 100 according to an embodiment of the present invention and the puncture outfit with it, comprising: wear
Pierce core bar 1, cutting tip 2, separated structure 3.Puncture core bar 1 is hollow circular-tube;Cutting tip 2 is substantially in open circles taper, cutting tip 2
Rear end be connected on puncture core bar 1 front end;Separated structure 3 is located on the outer wall of cutting tip 2;At least one side of separated structure 3
For first surface 31, first surface 31 and the outer wall of cutting tip 2 are smoothly connected.Puncture core assembly according to an embodiment of the present invention
100 and with its puncture outfit, on the one hand, cutting edge hurts patient when the unidirectional chorista of separated structure 3 can effectively reduce puncture
It is injured caused by mouthful, easily operated, structure is reliable;On the other hand, enhancing punctures the intensity of cutting edge, punctures cutting edge and does not allow mutability
Shape effectively prevent cutting edge to be broken the unexpected injury caused by patient, can be shortened operating time, improves procedure efficiency.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect
It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.